CA2068140A1 - Machine and method for producing reinforcing cages for concrete pipes - Google Patents
Machine and method for producing reinforcing cages for concrete pipesInfo
- Publication number
- CA2068140A1 CA2068140A1 CA002068140A CA2068140A CA2068140A1 CA 2068140 A1 CA2068140 A1 CA 2068140A1 CA 002068140 A CA002068140 A CA 002068140A CA 2068140 A CA2068140 A CA 2068140A CA 2068140 A1 CA2068140 A1 CA 2068140A1
- Authority
- CA
- Canada
- Prior art keywords
- machine
- feed
- wires
- longitudinal
- wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
- B21F27/121—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars
- B21F27/122—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires
- B21F27/124—Making special types or portions of network by methods or means specially adapted therefor of tubular form, e.g. as reinforcements for pipes or pillars by attaching a continuous stirrup to longitudinal wires applied by rotation
Abstract
?
Abstract:
A machine for producing reinforcing cages for concrete pipes is described, the reinforcing cages comprising longitudinal wires and a winding wire wound around them and welded to them at the intersections. In a machine of this type, the longitudinal wires are cut to length in advance, in a known manner, and are inserted into the machine through collecting funnels (9). In order to make manual work superfluous and to improve the machine performance, a wire feed device is provided which auto-matically fits the machine with the required longitudinal bars before each winding process. The device comprises a feed apparatus (21) for a plurality of wires (33), adjoining guide tubes (37), whose mouths are aligned with the collecting funnels (9), and a cutting device (38).
The said machine parts may be combined to form a feed frame (44) which can be displaced longitudinally altogether. Guide mouthpieces (39) are distributed uniformly over the circumference on the same diameter as the cutting devices (38) on a supporting disk (51) which is rotationally fixed to the main disk but can be dis-placed longitudinally with the feed frame (44). When there are fewer feed channels than the maximum number of longitudinal bars which can be inserted, the fitment process takes place in a cyclic method which permits a plurality of fitment variants.
Abstract:
A machine for producing reinforcing cages for concrete pipes is described, the reinforcing cages comprising longitudinal wires and a winding wire wound around them and welded to them at the intersections. In a machine of this type, the longitudinal wires are cut to length in advance, in a known manner, and are inserted into the machine through collecting funnels (9). In order to make manual work superfluous and to improve the machine performance, a wire feed device is provided which auto-matically fits the machine with the required longitudinal bars before each winding process. The device comprises a feed apparatus (21) for a plurality of wires (33), adjoining guide tubes (37), whose mouths are aligned with the collecting funnels (9), and a cutting device (38).
The said machine parts may be combined to form a feed frame (44) which can be displaced longitudinally altogether. Guide mouthpieces (39) are distributed uniformly over the circumference on the same diameter as the cutting devices (38) on a supporting disk (51) which is rotationally fixed to the main disk but can be dis-placed longitudinally with the feed frame (44). When there are fewer feed channels than the maximum number of longitudinal bars which can be inserted, the fitment process takes place in a cyclic method which permits a plurality of fitment variants.
Description
20~81~
Application: MsK Maschlnenbau GmbH
Friedrich-Li~t-Stra~e 19 7964 Kis~legg Machine and method for producing reinforcing cages for concrete pipes Description:
The invention relates to a machine for producing reinforcing cages for concrete pipe~ according to the preamble of the main claim. Such a machine i~ disclosed in DE-C 2~ 46 297. In this case, the longitudinal wires are drawn off a ~upply roller placed on a spool ~ are aligned and cut to length in a separate, preparatory procedure. The longitudinal bars produced in thi~ way are fed by hand into the machine, in the required quantity, through collecting tube~ which are equipped with collect-ing funnels. This type of fitment takes a relatively long time, and, including the alignment of the longitudinal bar~, repre~ents a considerable labor co~t factor.
Another machine to produce the ~ame reinforcing cage~ i9 disclo~ed in FR-A-2~038~417. In this case, the longitudinal wires are not cut to length before producing the cage~ but are ~ed continuou~ly. The drum arrangement, con~i~ting of the longitudinal wire8 ~ thu~ does not rotate, but the supply roller for the winding wire and th~ welding device are arranged on a ring which 8ur~0und~
the tensioned longitudinal wire~ and rotates around them.
The cage grow~ continuously from thi~ ring. It can be cUt of f at the desired length. However, the principle of the rotating welding device is relatively complicated and i~, in any case, limited where reinforc-ing cage~ of very different diameter~ are required.
The invention i~ ba~ed on the ob~ect of rational-izing the fitment of longitudinal barR to a reinforcing cage winding machine of the type mentioned initially, i.e. to render manual work ~uperfluou~ and to improve the 2~81~
machine performance, i.e. the ratio of manufacturing time to fitment time.
This object is achi~ved on th~ ba~i~ of ~uch a machine according to the invention wherein a wire feed de~ice is provided which automatically fits the machine with the required longitudinal bar~ before each winding process. The wire feed device preferably comprises a feed apparatus for a plurality of wires, which are drawn of f spools, adjoining guide tubes, whose mouth~ are aligned to the collecting funnel~ of the machine, and a cutting device for the wire~.
The feed apparatus preferably includeY a plurality of roller pairs per wire, one behind the other, in each case one roller being supported fixedly and the other resiliently, so that ~lip-free wire feed i~
achieved and the wire i~ ~imultaneou~ly aligned ~traight to a certain extent. The cutting device can b~
constructed in the manner of shears for one or more wires and can be driven by means of a hydraulic cylinder. In order that the cut-off ends of th~ longitudinal bars, which are still located in the cutting device, can rotate with the main disk, they mu~t be drawn out of the cutting device. This can take place, for example, with the aid of the m~veable ~upporting disc, on which the oppo~ite end~
of the longitudinsl bar~ are mounted wlth ~he aid of clamp~. However, it 18 al~o conceivable to fit to the coll~cting tubQs simple follow-up movement device~ which grip the longltudinal bars fed in and displace them a ~hort di~kance towards the ~upporting di~k in order to expo~e the cut-off ends.
With the aid of sultable eleatronic control devices, the wlre feed, the cutting off and the follow-up movement of the cut-off longitudinal bars can be controlled completely automatically and can be carried out after each complete reinforcing cage is ejected. It is necessary only that, to feed the wires, the collecting tu~es are set ~uch that they are align~d with the guide tube mouths. Manual work is no longer neces~ary, and the ; 20~J.~
Application: MsK Maschlnenbau GmbH
Friedrich-Li~t-Stra~e 19 7964 Kis~legg Machine and method for producing reinforcing cages for concrete pipes Description:
The invention relates to a machine for producing reinforcing cages for concrete pipe~ according to the preamble of the main claim. Such a machine i~ disclosed in DE-C 2~ 46 297. In this case, the longitudinal wires are drawn off a ~upply roller placed on a spool ~ are aligned and cut to length in a separate, preparatory procedure. The longitudinal bars produced in thi~ way are fed by hand into the machine, in the required quantity, through collecting tube~ which are equipped with collect-ing funnels. This type of fitment takes a relatively long time, and, including the alignment of the longitudinal bar~, repre~ents a considerable labor co~t factor.
Another machine to produce the ~ame reinforcing cage~ i9 disclo~ed in FR-A-2~038~417. In this case, the longitudinal wires are not cut to length before producing the cage~ but are ~ed continuou~ly. The drum arrangement, con~i~ting of the longitudinal wire8 ~ thu~ does not rotate, but the supply roller for the winding wire and th~ welding device are arranged on a ring which 8ur~0und~
the tensioned longitudinal wire~ and rotates around them.
The cage grow~ continuously from thi~ ring. It can be cUt of f at the desired length. However, the principle of the rotating welding device is relatively complicated and i~, in any case, limited where reinforc-ing cage~ of very different diameter~ are required.
The invention i~ ba~ed on the ob~ect of rational-izing the fitment of longitudinal barR to a reinforcing cage winding machine of the type mentioned initially, i.e. to render manual work ~uperfluou~ and to improve the 2~81~
machine performance, i.e. the ratio of manufacturing time to fitment time.
This object is achi~ved on th~ ba~i~ of ~uch a machine according to the invention wherein a wire feed de~ice is provided which automatically fits the machine with the required longitudinal bar~ before each winding process. The wire feed device preferably comprises a feed apparatus for a plurality of wires, which are drawn of f spools, adjoining guide tubes, whose mouth~ are aligned to the collecting funnel~ of the machine, and a cutting device for the wire~.
The feed apparatus preferably includeY a plurality of roller pairs per wire, one behind the other, in each case one roller being supported fixedly and the other resiliently, so that ~lip-free wire feed i~
achieved and the wire i~ ~imultaneou~ly aligned ~traight to a certain extent. The cutting device can b~
constructed in the manner of shears for one or more wires and can be driven by means of a hydraulic cylinder. In order that the cut-off ends of th~ longitudinal bars, which are still located in the cutting device, can rotate with the main disk, they mu~t be drawn out of the cutting device. This can take place, for example, with the aid of the m~veable ~upporting disc, on which the oppo~ite end~
of the longitudinsl bar~ are mounted wlth ~he aid of clamp~. However, it 18 al~o conceivable to fit to the coll~cting tubQs simple follow-up movement device~ which grip the longltudinal bars fed in and displace them a ~hort di~kance towards the ~upporting di~k in order to expo~e the cut-off ends.
With the aid of sultable eleatronic control devices, the wlre feed, the cutting off and the follow-up movement of the cut-off longitudinal bars can be controlled completely automatically and can be carried out after each complete reinforcing cage is ejected. It is necessary only that, to feed the wires, the collecting tu~es are set ~uch that they are align~d with the guide tube mouths. Manual work is no longer neces~ary, and the ; 20~J.~
reduction in the fitment time allows a considerable increase in the machine performance to be achieved.
If the reinforcing cage winding machlne is set up for cages with a relatively large number of longitudinal bar~, or a different number of longLtudinal bars, the number of longitudinal wire spools required and the technical cost for the wire feed device would exceed a reasonable level. A method for longitudinal bar fitment is therefore proposed in a development of the invention for thi~ case which comprises only a first group of longitudinal wires being fed in initially, which are distributed at equal angular interval~ around the circum-ference and repre~ent an integer fraction of the total number of longitudinal bar~ which can be held by the lS machine, the~e longitudinal wires being cut off and the main disk then being further rotated through a respec-tively corre8ponding angla, and the remaining groups being fed ln and cut off in a cyclic manner. The wire feed device can thu8 be of corre~pondingly simple con9truction. The number of ~uide tube~, the roller set~
of the feed apparatu~ and the cuttlng devices provided in each case for a longitud~nal wire to be fed l~kewi~e need to be equal only to an lnteger fract~on of the total number of longitudinal bar~ which can be held by thè
machine.
The follow-up movement of the longltudlnal bars from the cutting devlce~ could turn out to be problematia, partlcularly when weldinq supports and collecting tubes are arranged such that they can ~e moved ~0 radially on the maln di~k to produce relnforcing cages of dlfferent diameters. In a development of the invention, it l5 propo~ed that the wire feed device have a feed frame which connects its feed apparatus, its guide tubes and its cutting device and can be di~placed longitudinally. In consequence, in order to relea~e the longitudinal bar ends from the cutting devices, it i~
possible to move the complete feed frame a short distance backwards and move it forwards again before feeding in 2 0 ~ n the next wire group.
This construction additionally ha~ the advantage that reinforcing cages of different length can be produced, the possible moveme~t di~tance of the feed frame determining the length variation range of the reinforcing cage~ to be produced. In this case, the collecting tubes on the main di~k are made as lo~g as the shortest possible longitudinal bars. ~efore feeding in a wire group, the feed fram~ now moves until it i~ close to the collecting funnels in order that the start of the wires are reliably in~erted into it. If the wire~ are now fed in up to a ~hort distance beyond the welding supports, the feed frame thu~ moves back with the feed apparatus running to the de~ired longitudinal bar length.
In this case, the rate of movement is expediently equal to the feed rate of the wire in the feed apparatu~, 50 that the wire remains ~tatlonary. ~he longltudlnal wires are cut off~at the desired polnt.
It is expedLent to provlde a cuttlng devlce for each indivldual wlre, devlce~ havLng two laterally movlng cuttlng bushes ha~lng been proven. The cuttlng devlce~
can be ~ltted on a supportlng rlng mounted on the feed frame. In thl~ ca~e, lt 1~ important for the ~upporting rlng to have opening~ between the cutting devices in the reglon of the arc corre~ponding to the axial ~eparation between th~ cut wires. When, ~peciflcally~ one wire group 18 c~t off and, after an intermediate a~gular mov~ment of th~ main d~sk, the ~eed ~rame moves f~rwards to feel in the next group, the cut off ends of the previous group thu~ pass through the opening~ in the ~upporting ring, ~o that the movem~nt of the ~eed frame i~ not impeded.
It is ~urther propo~ed that guide mouthpi~ce~, arranged directly behind the cutting devices in the ~eed directionl ~e arranged on a support di~k which can rotate with the main disk and can be displaced longitudinally with the feed fxame. The~e guide mouthpieces fulfill two objectQ. On the one hand, they ensure that the previously cut off ends of the longitudinal bars, facing away fxom 20~140 . .
the main disk, are inserted into the said openings of the supporting ring when the feed frame 19 mo~ed forward after each cyalic rotatlon. On the other hand, they ensure that the projecting front ~ire ends are inserted ln the collectLng funnels. To thl~ end, the guide mouth-plece~ are expedlently of conlcal construction at the front end and, when they are mo~ed up to the collecting funnels, they ~ngage therein. In other re~pect~, the gulde mouthpiece~ are dimensioned and arranged ~uch that, when the feed frame move~ backward~ a qhort distance, as already mentioned, after each cutting process, although the longitudinal bar ends are drawn out o the cutting device~, they still remain in the guide mouthpiece~, which follow the rotary movements with their ~upporting 15 di9k.
In detail, it is expedient from the structural point of view if a common hub, which i~ rotationally fixed and can be displaced longitudinally, i~ arranged on the extended shaft of the main disk, on which hub the supporting disk o~ the guide mouthpieces i9 mounted and which i~ held on the feed frame by an axial driving connection.
Since the collecting tubes projecting from the main disk are relatively long, there is a rlsk, despite the u~e of re~nforcing arms, of the collecting funnels swinging out in the tangential direction and hence mi~sing the guide mouthpieces. In this case, care must be taken to ensure that the collecting tubes must be move-able radially along the main disk to produce reinforcing cages of different diameter~. It i~ thus proposed that the collecting tubes be supported by a guide star which i8 mounted on the shaft of tlle maln dl~k and forms radlal slots .
An exemplary embodiment of the invention i8 explaLned Ln the followlng text, uqing the drawlng ln which, in detail:
206~14~
. - 6 -Fig. 1 shows the side view of a complete rein~orcing cage winding machine with automatic feed of the longitudinal bars~
Fig . 2 shows the side view of the wire feed device of thi~ machine, on a larger scale~
Fig. 3 show~ the wire feed de~ice seen from above~
Fig. 4. show~ an axial view IV-IV of the supporting disk with the guide mouthpiece8 according to Fig. 2, Fig. S shows an axial ViQW V-V of the supporting ring with the cutting device~ ac~ording to Fig. 2, Fig. 6 show~ a cros~-~ection VI-VI of the longitudin-ally moveable frame of the wlre feed device according to Flg. 2, F~q. 7 shows an axlal v~ew VII-VII of a gulde star on the main dis~ according to F~g. 1, Fig. ~ showc the axial view of a cutting device accordlng to Flg. S, on a larger scale, Fig. g ~how~ an axial ~ction of the cutting device ~ accordlng to Flg. ~, and Fig. 10 shows the view of a module of an additionally proposed wlre al~gnment device.
~he machine according to Fig. 1, without a wire feed device, corresponds e~sentially to the machine described in DB-C 2,945,556 and, in particular, DE-C
2,946,297, for producing reinforcing cages. Reference is made thereto as a supplement to the following description.
2 ~
An existing barrel-~haped reinforcing cage 1 i~
held between a main disk 2 and ~ ~upporting disk 3. The~e disks, which are constructed as ~poked wheels with 24 spokes, are supported on the same axis and can be driven precisely ~ynchronou~ly with the aid of an electric drive. The support of the main disk is ~tationary, the supporting disk 3 being supported on a carriage 4 which can move in the axial direction on two track rails 5. The supporting disk furthermore ha~ radial clamping ~trips 6 which form slots between them and firmly clamp the longitudinal bars of the reinforcing cage 1 which project into the~e slots, to be precise independently of the cage diameter.
On it~ ~pokes, the main disk 2 has welding ~upports 7 which can be displaced radially, guide the longitudinal bars and provide inward support when the crossing windlng wire i~ welded on. In order to be able to feed the longltudlnal wires more ea~lly into the weldlng support~ 7, a collecting tube 8 which projects in the axial dlrection and has a collecting funnel 9 on the receivlng end, i~ arranged on each of the~e welding ~upports. In the example and in connec~ion with the invention, the collecting tubes 8 are relativ~ly long and are thus supported by reinforcing arms 10 which are likewise mounted on the welding supports 7.
A chain arrangement, which is operated by a hydraulic cylinder 11, is used for the common radial displacement of the individual welding supports 7. Said cylinder is seated on an elongated platform 12 (Fig. 2~
30 which i8 ~upported by a pedestal 13. The main di~k 2 has a hollow ~haft 14 which is fixedly connected to its hub, is o~ particularly long construction with respect to the invention, and is supported in a bearing 15 mounted on the platform 12 (Fig. 2). This hollow shaft 14 supports a guide star 16 which is shown more clearly in Fig. 7.
It consists of a round disk with 24 radial slots 17, who~e edges are open, open in a V-shape toward~ the edge and each hold a collecting tube 8. The chain arrangement 2 ~
in each case comprises an endle~ chain 18, gulded in an L-shape, per ~poke, which lg guided ~ver four guide rollers. On~ of the~e guide roller~ iq ~eated on the outer ring of the mai~ disk 2, two more being ~eated on the hub and the fourth being ~eated on the guide ~tar 16.
One of the chain sections extending radially i9 mounted on the asqociated welding support 7. ~he corre~ponding axial ~ection~ of all the chain6 are mounted on a common annular sleeve which can be displaced on the hollow shaft 14. The annular sleeve i8 a diametric web which pas~es throuqh two longitudinal slot~ in the hollow ~haft and i8 connected to the extended pi~ton rod 19 of the hydraulic cylinder 11 (Fig. 3) which pi~ton rod 19 engages axially in the hollow 8haft 14. A welding device, indicated by 20, can move at right angle~ to the longitudinal axis of the machine in synchronism with the radial displacement ~f the welding ~upport~ 7.
The machine which 1~ known to thiq extent - with the exception of the guide star 16 - i9 equipped with an automatic device for feeding ln ~lx longltudlnal wires, wh~ch are shown in the other figur~s. 8aid machlne comprl~es a feed apparatus 21, wh~ch haq four track rollerq 22 and can be moved on two rail~ 23. The rall~
rest on a pedestal 24. ~he movement dri~e takes place by means of a preci~ely controllable motor 25 and an endles~
chain 26. A spindle or other linear drive could al~o be used in the ~ame manner. Three roller set~ are arranged in~each case on the exterior on th~ side wall~ of the ba~ body, which i~ open in the movement direction, of the fe~d apparatus 21. In the example~ each compri~e~
four upper fixedly supported roller~ 27 and four lower rollers 28~ which are supported in an o~cillating manner on guide bar~ and are pre~ed again~t the upper ~ollers with the aid of plate spring ~tacks 29. Located under each roller set i~ a clamping strip 30 which rest~ on two eccentric rollers 31 such that the pretensioning of the plate ~pring stacks 29 can be varied as required by adju3ting the eccentric rollers. All the upper rollers ~g~
27 are driven by a motor 32 arranged on the feed apparatu~ 21.
The feed apparatu~ 21 draws 9ix longitudinal wire~ 33 from six wire rollers 34, which are supported with their vertical axe~ in two row~ on a spool frame 35.
In each sa~e, three wires run through a slotted frame 36, for prealignment, to the left and right roller sets of the f eed apparatu~ 21 tFig. 1).
The longitudinal wire~ 33 are fed rom the feed apparatus 21 in each case through six gulde tubes 37, cutting devicec 38 and guide mouthpieces 39. The cutting device~ 3a are arranged on a ~upporting ring 40 which i~
fixedly connected to a rectangular frame 41. This vertical frame i~ in turn fixedly connected vla two upper bars 42, running obliquely, and two horizontal, lower rails 43 to the base body of the feed apparatuq 21, to f orm a feed frame 44 which can be moved therewith. The rails 43 thereof are gulded long1tudinally between in each case two roller pair~ 45 which are ~upported on two U-~haped crossbars 46 of the platform 12.
A hub 47 i~ supported di~placea~ly on the hollow shaft 14. Two strips 48, whlch are mounted diametrically opposite one another on the hollow shaft, engage in corre~ponding inner longitudinal groove~ in the hub 47 ~o that the latter cannot rotate with re~pect to the hollow shaft 14. Externally, the hub 47 has a clrcumferential groove into whlch there engage two freewheeling rollers S0 wh~ch are supported on an intermediate bracket 49 of the rectangular fram~ 41. ~hls re~ult~ ln the feed ~rame 44 driving the hub 47 in both directions during its longitudinal movement, the hollow ~haft being able to rotate with the hub. Mounted on the hub 47 i~ a ~upport-ing di~k 51 to which the 24 guide mouthpieces 39 are fitted at angular intervals of 15. When the feed frame 44 together with the feed apparatu~ 21 move~ to the left, under the influence of the motor 25 according to Fig. 2, into the po~ition Yhown by dashed-dotted lines~ the rear part of the platform 12 and the hydraulic cylinder 11 2 ~
engage between the two side wall~, ~upporting the roller set~, of the base frame of the feed apparatus 21. In thi~
ca~e, the six curved guide tubes 37~ of which only two are ~hown in each case for ~implicity, are al~o not impeded by the platform 12 or its pedestal 13.
As Fig. 5 shows, in each case two of the total of six cutting devices 38 are operate~ by a hydraulic cylinder 52. SUCh a cutting device is shown more clearly in Fig~. 8 and 9. It consist~ of two rectangular plates 53 and 54, screwed to one another, between which a lever 55 i9 supported by mean~ of a bearing bolt 56 which passes through the plates. The piston rod of the hydraul-ic cylinder 52 i~ jointed to this lever 55 according to Fig. 8. In each ca~e one of two hardened cuttlng bushes 57, which are arranged in mlrror image form and whose end surfaces slide directly on one another, are ~eated in the plate 53 and in the lever 55. In the rest po~ition of the lever 55, shown drawn out, the two cutting bushes 57 are aligned wlth a hole in thc supporting disk 4 0 ~ with the gulde tube 37 which open~ th~rein and with a larger opening in the plate 54. In this position, a longitudinal wire can thus be fed in. I the hydraulic cylinder i~
ope~ated, the wire i8 cut off. Fig. ~ and Fig. 8 ~how round openings 58~ whose purpose becomes clear from the further description~ Which are fitted on the sUpporting ring 40. Their center p~ints lie on the same circle arc as the opening3 of the cutting devices 38 and are at the same angulax interval9. The in each ca~e three opening~
58~ arranged between two cutting device~ 3B, could al~o be combined to ~orm a kidney-shaped 310t 59, a3 iB also shown in Fig. 5.
It has already been mentioned that the roller 9et~ of the feed apparatu~ 21, whose rollers pre~
again~t one another in pair8, have only a limited align-ment effect on the wire. On the other hand, good, ~traight alignment of the longitudinal wire3 fed is of major importance to the dimen~lonal ~tablllty o~ the reinforcing cages. In the case of strlngent requlrements 20~81~.3 in this re~pect and critical wire material, there are therefore arranged between the spool frame 35 and the feed apparatus 21 alignmant device~ which comprise a plurality of module~ 60, one of which i8 shown in Fig.
10. The module contains five rollers 61, which are on parallel axes, are V-~haped on the circumference, and are arranged alternately on both ~ides at longitudinal intervals in the running direction of the wire 62 to be treated. The three lower rollers are supported on the fixed alignment frame 63, while the two upper rollers are supported on a cro~ ~lide 64 which can be displaced in corresponding guide~ under the three lower roller~. The cross ~lide 64 can be adju~ted by mean~ of an eccentric which i~ supported in the alignment frame and whose operatlng lev~r i~ designated by 65 such that the wire pa~sing through is ~lightly bent twice and in con~equence i~ aligned straight in the plane of the rollers. The eccentric and the cro~ slide 64 can be fixed by means of a ~lamping lever 66. Adjusting screw~ 67 fu~thermore permit individual adjustment of the two upper roller~ 61.
At least two such modules 60 per wire are arranged one behind the other in mutually perpendicular plane8, by mean~ of which complete ~patial ~traight alignment can be achieved. The ~econd module i8 indicated partially.
The machine desari~ed i~ set up for the production of reinforcing cagee having a maximum of twenty ~our longitudinal bar~, i.e. in each ca~e twenty fo~r cl~mping slot9 are provided on the support di8~ 3, welding ~upports 7 and collecting tube~ 8 on the main di~k 2, radial ~lot~ 17 on the guide star 1~ and guide mouthpieces 39 on the ~upporting disk 51. On the other hand, only one group of six longitudinal wires can be fed in at one time, becau~e the wlre feed device in each case has only ~ix feed roller set~, guide tube~ 37 and cutting devices 38. The diameter of the reinforcing cage can be larger or smaller than the delivery dlameter, l.e. the diametric separation of the guide mouthpleces. Fewer longitudinal bars are normally used ln the case of small 2 V ~
cage diameters and more longitudinal bars in the case of large cage diameter~. In the repre3entation according t~
Fig. 1, the reinforcing cage 1 ha~ virtually the maximum diameter.
The machine de~crlbed operate~ unde~ the~e preconditions, for example to produce a reinforcing cage having twelve longitudinal bar~, a9 follow~: when the complete reinforcing cage has been removed and the supporting disk 3 ha~ been moved to the right again into the vicinity of the main disk 2, the welding supports 7 and the collecting tube~ 8 move radlally inward~, controlled by the hydraulic cylinder 11, until they are in the position ~hown in Figures 2 and 3, i.e. on the delivery dlameter. The axi~ separation of the collecting funnels 9 i~ the same ~ize aR that of the guide mouth-piece~ 39 in this position. By means of the radial movement, the collectlng tubes 8 are slmultaneously run into the gulde Rlots 17 of the guid~ ~tar 16 as a result of which a precl~e angular separation of 15 ln each case i~ ~n~ured. Otherw~e, the rotat~ onal co~t~ol of the maln d~sk 2 moves lt, and hence also the guide star 16 and the supporting dlsk 51, into an angular po~ition in which six of the total of twenty four guide mouthpiece~ 39 are aligned with the mouths of the guide tubes 37, i.e. the openlng~ of the cutting device~ 38. At the same time~ the feed fram~ 44 is moved by the influence of the motor 25 to the left into the delivery poeition according to Fiq.
2, shown in dashed-dotted line~ the guide mouthpiece~ 39 engaging by a short dietance into the collecting funnel~
9. In order to ensure complete engagement, but to prevent damage, becau~e of the unavoidable tolerance~ in the movement of such large machine parts, the guide mouth-pieces 39 are installed in the ~upporting di~k 51. in a re~iliently flexible manner, as Fig. 9 ~hows.
Thi~ is now the time at which the motor 32 set~
the roller sets of the feed apparatuq 21 in motion, ~o that, as a result of the effect of the~e rollers, whose running surface can be ridged, the six wires 33 are fed 20~8~
into the guide tubes 37. Th~ front end~ of ~aid wires 33 pa~s through the cutting devices 38 ~nd the gulde m~uth-piece~ 39 into the collecting funnel ~ and the collect-ing tubes a until the front ends project several centi-meters beyond the welding support8 7. At this instant, the feed fram~ 44 once again starts to move back to the right, to be precise preferably at the same rate at which the wires 33 move ~orward in the guide tubes 37. In ~onsequenc~ the wire~ remain ~tationary in the collecting tube~ 8. If th~ said rates do not correspond preci9ely or if the switching-off time~ of the drive~ do not correspond precisely~ this can be compensated for by control means. In any case~ the two drive~ 25 and 32 come to rest when the deaired length of the longitudinal bar8 is reached. This can be in the limit po~ition 9hown in the drawing~ or in any intermediate po~ition. The hydraulic cylinders 52 of the cutting device~ 38 are now operated and the six wires 33 are hence cut off. The cut-off ends ~f the longitudinal bars are, however, stLll ~nserted in the cutting sleevQs 57 so that further rotation of the main disk 2 is not yet possible.
The feed frame 44 therefore now moves a short distance backwards, 80 that the~e ends are drawn out of the cutting bushes 57 and the plate 54, but still remain in the a~sociated guide mouthpieces 39. During this small movement of the feed frame 44, the wires 33 have sufficient space behind the feed apparatus 21 to bend slightly and t~ ~bsorb this~ movement. Once the longitudlnal bar ends have been freed, the main disk 2 and hence also the ~upporting dis~ ~1 rotate further through a cycle of 30, so that a further group of 9iX
gulde mouthpiece~ is now opposite the cutting devices 38.
The feed frame 44 now moves to the left again, the cut-off ends of the longitudinal bar~ dipping into the respective central openings 58 of the supporting ring 40 and thu~ not impeding thi~ movement. The movement of the feed frame 44 continues up to the delivery position in which all the guide mouthpiece~ 3~ dip into the collecting funnels 9.
The feed apparatus 21 is now set in motion again.
A9 ~oon as the front ends of thl s~cond group of wires pro~ect a few centimeters beyond the a~sociated welding supports 7, the feed frame 44 moves backwards again, without the operation of the feed apparatus 21 being reduced. Once the intended limit po~ition is reached and the two drives 25 and 32 are stationary, the cutting devices 38 come into action. After thi~, the feed frame 44 move~ a short distance backward~ again until the ends of the cut-off longitudinal bars are freed from the cuttlng devices 38. The welding ~upports 7 together with the collect~ng tubes 8 now move radially to the de~ired cage diameter. Once the diameter is reached, the supporting disk 3 moves to the front ends of the lon-gitudi~al bars and impacts against them slightly, in order to bring all the ends into a precisely radial plane if neoessary. This is important in order that all the bar end~ engage far enough into the clamping slots and the complete reinforcing cage iB vertical. Finally, the clamping strips 6 snap closed and hold the ends fixedly.
The winding process can start.
As a deviation fxom the half loading of the machine described, with twelve longitudinal bars, it is of course also possible to manufacture cage~ having only six or having twenty four longitudinal bars. In the latter case, the cyclic movement take~ place three times, in each ca~e by 15. In addition, in the case of this machino, it is al~o po~sible to manufacture cages having four longitudinal wire~, each di~placed by 90 with respect to one another, by feeding in only two mutually diametrically opposite wira8, or by feeding ln two further wire~ once the main dlsk has been moved cyclically through 90~. The diameter of the reinforcing 35 cages iB also normally dlmensioned larger or smaller in accordance with the number of longitudinal bars. ~or very small d$ameters, every second one of the slots 17 of the guide star 16 i8 moved close to the hollow shaft 14.
2 ~
A wire feed device having more or less than BiX
feed channels can al~o be provided, depending on the maximum number of the long~tudlnal bar~ to be fed into the machine. In addition, the maximum number of longitudinal bars which can be held by the machlne may correspond to the number of feed channels of the wire feed device so that the machine can be fitted in a single proce~s, without cycling.
The proposed wire feed devLce ls thus 3uLtahle for all of the wide range of usage pos~ibilities of the reinforcing cage winding machine known per se, and in any case considerably reduces the setting up time. Modern, programmable controls for the individual drives allow all the movement processes which can be carried out ~imul-taneously also to run simultaneously and hence allow themaximum possible time saving to be achieved.
2~6gl ~ ~
l Reinforcing cage 39 Guide mouthpiece 2 Main di~k 40 Supportiny ring 3 Supporting disk 41 Rectangular frame 4 Carriage 42 Bar S ~rack rall 43 Rail 6 ~lamplng strlp 44 Feed frame 7 Welding ~upport 45 Roller palr 8 Collecting tube 46 Cro~sbar 9 Collectinq funnel 47 Rub 10 Reinforcing arm 48 Strip 11 Hydraulic cylinder 49 Intermediate bracket 12 Platform 50 Roller 13 Pedestal 51 Supporting disk 14 Hollow shaft 52 Hydraulic cylinder 15 ~earing 53 Plate 16 Guide 3tar 54 Plate 17 Guide slot 55 Lever la Chain 56 ~earing bolt 19 Pi~ton rod 57 Cutting bush 20 Welding device 58 Opening 21 Feed apparatus 59 Slot 22 Track roller 60 Ali~nment devLce 23 Rails 61 Roller 24 Pedestal 62 Wire 25 Motor 63 Alignment frame 26 Chain 64 Cross ~lide 27 Upper roller 65 Operating lever 28 ~ Lower roller 66 Clamping lever 29 Plate sprinq ~tack 67 Adjusting screw 30 Clamp~ng ~trip 31 Eccentric roller 32 Motor 33 Longitudinal wire 34 Wire roller 35 Spool frame 36 Slotted frame 37 Guide tube 38 Cutting device
If the reinforcing cage winding machlne is set up for cages with a relatively large number of longitudinal bar~, or a different number of longLtudinal bars, the number of longitudinal wire spools required and the technical cost for the wire feed device would exceed a reasonable level. A method for longitudinal bar fitment is therefore proposed in a development of the invention for thi~ case which comprises only a first group of longitudinal wires being fed in initially, which are distributed at equal angular interval~ around the circum-ference and repre~ent an integer fraction of the total number of longitudinal bar~ which can be held by the lS machine, the~e longitudinal wires being cut off and the main disk then being further rotated through a respec-tively corre8ponding angla, and the remaining groups being fed ln and cut off in a cyclic manner. The wire feed device can thu8 be of corre~pondingly simple con9truction. The number of ~uide tube~, the roller set~
of the feed apparatu~ and the cuttlng devices provided in each case for a longitud~nal wire to be fed l~kewi~e need to be equal only to an lnteger fract~on of the total number of longitudinal bar~ which can be held by thè
machine.
The follow-up movement of the longltudlnal bars from the cutting devlce~ could turn out to be problematia, partlcularly when weldinq supports and collecting tubes are arranged such that they can ~e moved ~0 radially on the maln di~k to produce relnforcing cages of dlfferent diameters. In a development of the invention, it l5 propo~ed that the wire feed device have a feed frame which connects its feed apparatus, its guide tubes and its cutting device and can be di~placed longitudinally. In consequence, in order to relea~e the longitudinal bar ends from the cutting devices, it i~
possible to move the complete feed frame a short distance backwards and move it forwards again before feeding in 2 0 ~ n the next wire group.
This construction additionally ha~ the advantage that reinforcing cages of different length can be produced, the possible moveme~t di~tance of the feed frame determining the length variation range of the reinforcing cage~ to be produced. In this case, the collecting tubes on the main di~k are made as lo~g as the shortest possible longitudinal bars. ~efore feeding in a wire group, the feed fram~ now moves until it i~ close to the collecting funnels in order that the start of the wires are reliably in~erted into it. If the wire~ are now fed in up to a ~hort distance beyond the welding supports, the feed frame thu~ moves back with the feed apparatus running to the de~ired longitudinal bar length.
In this case, the rate of movement is expediently equal to the feed rate of the wire in the feed apparatu~, 50 that the wire remains ~tatlonary. ~he longltudlnal wires are cut off~at the desired polnt.
It is expedLent to provlde a cuttlng devlce for each indivldual wlre, devlce~ havLng two laterally movlng cuttlng bushes ha~lng been proven. The cuttlng devlce~
can be ~ltted on a supportlng rlng mounted on the feed frame. In thl~ ca~e, lt 1~ important for the ~upporting rlng to have opening~ between the cutting devices in the reglon of the arc corre~ponding to the axial ~eparation between th~ cut wires. When, ~peciflcally~ one wire group 18 c~t off and, after an intermediate a~gular mov~ment of th~ main d~sk, the ~eed ~rame moves f~rwards to feel in the next group, the cut off ends of the previous group thu~ pass through the opening~ in the ~upporting ring, ~o that the movem~nt of the ~eed frame i~ not impeded.
It is ~urther propo~ed that guide mouthpi~ce~, arranged directly behind the cutting devices in the ~eed directionl ~e arranged on a support di~k which can rotate with the main disk and can be displaced longitudinally with the feed fxame. The~e guide mouthpieces fulfill two objectQ. On the one hand, they ensure that the previously cut off ends of the longitudinal bars, facing away fxom 20~140 . .
the main disk, are inserted into the said openings of the supporting ring when the feed frame 19 mo~ed forward after each cyalic rotatlon. On the other hand, they ensure that the projecting front ~ire ends are inserted ln the collectLng funnels. To thl~ end, the guide mouth-plece~ are expedlently of conlcal construction at the front end and, when they are mo~ed up to the collecting funnels, they ~ngage therein. In other re~pect~, the gulde mouthpiece~ are dimensioned and arranged ~uch that, when the feed frame move~ backward~ a qhort distance, as already mentioned, after each cutting process, although the longitudinal bar ends are drawn out o the cutting device~, they still remain in the guide mouthpiece~, which follow the rotary movements with their ~upporting 15 di9k.
In detail, it is expedient from the structural point of view if a common hub, which i~ rotationally fixed and can be displaced longitudinally, i~ arranged on the extended shaft of the main disk, on which hub the supporting disk o~ the guide mouthpieces i9 mounted and which i~ held on the feed frame by an axial driving connection.
Since the collecting tubes projecting from the main disk are relatively long, there is a rlsk, despite the u~e of re~nforcing arms, of the collecting funnels swinging out in the tangential direction and hence mi~sing the guide mouthpieces. In this case, care must be taken to ensure that the collecting tubes must be move-able radially along the main disk to produce reinforcing cages of different diameter~. It i~ thus proposed that the collecting tubes be supported by a guide star which i8 mounted on the shaft of tlle maln dl~k and forms radlal slots .
An exemplary embodiment of the invention i8 explaLned Ln the followlng text, uqing the drawlng ln which, in detail:
206~14~
. - 6 -Fig. 1 shows the side view of a complete rein~orcing cage winding machine with automatic feed of the longitudinal bars~
Fig . 2 shows the side view of the wire feed device of thi~ machine, on a larger scale~
Fig. 3 show~ the wire feed de~ice seen from above~
Fig. 4. show~ an axial view IV-IV of the supporting disk with the guide mouthpiece8 according to Fig. 2, Fig. S shows an axial ViQW V-V of the supporting ring with the cutting device~ ac~ording to Fig. 2, Fig. 6 show~ a cros~-~ection VI-VI of the longitudin-ally moveable frame of the wlre feed device according to Flg. 2, F~q. 7 shows an axlal v~ew VII-VII of a gulde star on the main dis~ according to F~g. 1, Fig. ~ showc the axial view of a cutting device accordlng to Flg. S, on a larger scale, Fig. g ~how~ an axial ~ction of the cutting device ~ accordlng to Flg. ~, and Fig. 10 shows the view of a module of an additionally proposed wlre al~gnment device.
~he machine according to Fig. 1, without a wire feed device, corresponds e~sentially to the machine described in DB-C 2,945,556 and, in particular, DE-C
2,946,297, for producing reinforcing cages. Reference is made thereto as a supplement to the following description.
2 ~
An existing barrel-~haped reinforcing cage 1 i~
held between a main disk 2 and ~ ~upporting disk 3. The~e disks, which are constructed as ~poked wheels with 24 spokes, are supported on the same axis and can be driven precisely ~ynchronou~ly with the aid of an electric drive. The support of the main disk is ~tationary, the supporting disk 3 being supported on a carriage 4 which can move in the axial direction on two track rails 5. The supporting disk furthermore ha~ radial clamping ~trips 6 which form slots between them and firmly clamp the longitudinal bars of the reinforcing cage 1 which project into the~e slots, to be precise independently of the cage diameter.
On it~ ~pokes, the main disk 2 has welding ~upports 7 which can be displaced radially, guide the longitudinal bars and provide inward support when the crossing windlng wire i~ welded on. In order to be able to feed the longltudlnal wires more ea~lly into the weldlng support~ 7, a collecting tube 8 which projects in the axial dlrection and has a collecting funnel 9 on the receivlng end, i~ arranged on each of the~e welding ~upports. In the example and in connec~ion with the invention, the collecting tubes 8 are relativ~ly long and are thus supported by reinforcing arms 10 which are likewise mounted on the welding supports 7.
A chain arrangement, which is operated by a hydraulic cylinder 11, is used for the common radial displacement of the individual welding supports 7. Said cylinder is seated on an elongated platform 12 (Fig. 2~
30 which i8 ~upported by a pedestal 13. The main di~k 2 has a hollow ~haft 14 which is fixedly connected to its hub, is o~ particularly long construction with respect to the invention, and is supported in a bearing 15 mounted on the platform 12 (Fig. 2). This hollow shaft 14 supports a guide star 16 which is shown more clearly in Fig. 7.
It consists of a round disk with 24 radial slots 17, who~e edges are open, open in a V-shape toward~ the edge and each hold a collecting tube 8. The chain arrangement 2 ~
in each case comprises an endle~ chain 18, gulded in an L-shape, per ~poke, which lg guided ~ver four guide rollers. On~ of the~e guide roller~ iq ~eated on the outer ring of the mai~ disk 2, two more being ~eated on the hub and the fourth being ~eated on the guide ~tar 16.
One of the chain sections extending radially i9 mounted on the asqociated welding support 7. ~he corre~ponding axial ~ection~ of all the chain6 are mounted on a common annular sleeve which can be displaced on the hollow shaft 14. The annular sleeve i8 a diametric web which pas~es throuqh two longitudinal slot~ in the hollow ~haft and i8 connected to the extended pi~ton rod 19 of the hydraulic cylinder 11 (Fig. 3) which pi~ton rod 19 engages axially in the hollow 8haft 14. A welding device, indicated by 20, can move at right angle~ to the longitudinal axis of the machine in synchronism with the radial displacement ~f the welding ~upport~ 7.
The machine which 1~ known to thiq extent - with the exception of the guide star 16 - i9 equipped with an automatic device for feeding ln ~lx longltudlnal wires, wh~ch are shown in the other figur~s. 8aid machlne comprl~es a feed apparatus 21, wh~ch haq four track rollerq 22 and can be moved on two rail~ 23. The rall~
rest on a pedestal 24. ~he movement dri~e takes place by means of a preci~ely controllable motor 25 and an endles~
chain 26. A spindle or other linear drive could al~o be used in the ~ame manner. Three roller set~ are arranged in~each case on the exterior on th~ side wall~ of the ba~ body, which i~ open in the movement direction, of the fe~d apparatus 21. In the example~ each compri~e~
four upper fixedly supported roller~ 27 and four lower rollers 28~ which are supported in an o~cillating manner on guide bar~ and are pre~ed again~t the upper ~ollers with the aid of plate spring ~tacks 29. Located under each roller set i~ a clamping strip 30 which rest~ on two eccentric rollers 31 such that the pretensioning of the plate ~pring stacks 29 can be varied as required by adju3ting the eccentric rollers. All the upper rollers ~g~
27 are driven by a motor 32 arranged on the feed apparatu~ 21.
The feed apparatu~ 21 draws 9ix longitudinal wire~ 33 from six wire rollers 34, which are supported with their vertical axe~ in two row~ on a spool frame 35.
In each sa~e, three wires run through a slotted frame 36, for prealignment, to the left and right roller sets of the f eed apparatu~ 21 tFig. 1).
The longitudinal wire~ 33 are fed rom the feed apparatus 21 in each case through six gulde tubes 37, cutting devicec 38 and guide mouthpieces 39. The cutting device~ 3a are arranged on a ~upporting ring 40 which i~
fixedly connected to a rectangular frame 41. This vertical frame i~ in turn fixedly connected vla two upper bars 42, running obliquely, and two horizontal, lower rails 43 to the base body of the feed apparatuq 21, to f orm a feed frame 44 which can be moved therewith. The rails 43 thereof are gulded long1tudinally between in each case two roller pair~ 45 which are ~upported on two U-~haped crossbars 46 of the platform 12.
A hub 47 i~ supported di~placea~ly on the hollow shaft 14. Two strips 48, whlch are mounted diametrically opposite one another on the hollow shaft, engage in corre~ponding inner longitudinal groove~ in the hub 47 ~o that the latter cannot rotate with re~pect to the hollow shaft 14. Externally, the hub 47 has a clrcumferential groove into whlch there engage two freewheeling rollers S0 wh~ch are supported on an intermediate bracket 49 of the rectangular fram~ 41. ~hls re~ult~ ln the feed ~rame 44 driving the hub 47 in both directions during its longitudinal movement, the hollow ~haft being able to rotate with the hub. Mounted on the hub 47 i~ a ~upport-ing di~k 51 to which the 24 guide mouthpieces 39 are fitted at angular intervals of 15. When the feed frame 44 together with the feed apparatu~ 21 move~ to the left, under the influence of the motor 25 according to Fig. 2, into the po~ition Yhown by dashed-dotted lines~ the rear part of the platform 12 and the hydraulic cylinder 11 2 ~
engage between the two side wall~, ~upporting the roller set~, of the base frame of the feed apparatus 21. In thi~
ca~e, the six curved guide tubes 37~ of which only two are ~hown in each case for ~implicity, are al~o not impeded by the platform 12 or its pedestal 13.
As Fig. 5 shows, in each case two of the total of six cutting devices 38 are operate~ by a hydraulic cylinder 52. SUCh a cutting device is shown more clearly in Fig~. 8 and 9. It consist~ of two rectangular plates 53 and 54, screwed to one another, between which a lever 55 i9 supported by mean~ of a bearing bolt 56 which passes through the plates. The piston rod of the hydraul-ic cylinder 52 i~ jointed to this lever 55 according to Fig. 8. In each ca~e one of two hardened cuttlng bushes 57, which are arranged in mlrror image form and whose end surfaces slide directly on one another, are ~eated in the plate 53 and in the lever 55. In the rest po~ition of the lever 55, shown drawn out, the two cutting bushes 57 are aligned wlth a hole in thc supporting disk 4 0 ~ with the gulde tube 37 which open~ th~rein and with a larger opening in the plate 54. In this position, a longitudinal wire can thus be fed in. I the hydraulic cylinder i~
ope~ated, the wire i8 cut off. Fig. ~ and Fig. 8 ~how round openings 58~ whose purpose becomes clear from the further description~ Which are fitted on the sUpporting ring 40. Their center p~ints lie on the same circle arc as the opening3 of the cutting devices 38 and are at the same angulax interval9. The in each ca~e three opening~
58~ arranged between two cutting device~ 3B, could al~o be combined to ~orm a kidney-shaped 310t 59, a3 iB also shown in Fig. 5.
It has already been mentioned that the roller 9et~ of the feed apparatu~ 21, whose rollers pre~
again~t one another in pair8, have only a limited align-ment effect on the wire. On the other hand, good, ~traight alignment of the longitudinal wire3 fed is of major importance to the dimen~lonal ~tablllty o~ the reinforcing cages. In the case of strlngent requlrements 20~81~.3 in this re~pect and critical wire material, there are therefore arranged between the spool frame 35 and the feed apparatus 21 alignmant device~ which comprise a plurality of module~ 60, one of which i8 shown in Fig.
10. The module contains five rollers 61, which are on parallel axes, are V-~haped on the circumference, and are arranged alternately on both ~ides at longitudinal intervals in the running direction of the wire 62 to be treated. The three lower rollers are supported on the fixed alignment frame 63, while the two upper rollers are supported on a cro~ ~lide 64 which can be displaced in corresponding guide~ under the three lower roller~. The cross ~lide 64 can be adju~ted by mean~ of an eccentric which i~ supported in the alignment frame and whose operatlng lev~r i~ designated by 65 such that the wire pa~sing through is ~lightly bent twice and in con~equence i~ aligned straight in the plane of the rollers. The eccentric and the cro~ slide 64 can be fixed by means of a ~lamping lever 66. Adjusting screw~ 67 fu~thermore permit individual adjustment of the two upper roller~ 61.
At least two such modules 60 per wire are arranged one behind the other in mutually perpendicular plane8, by mean~ of which complete ~patial ~traight alignment can be achieved. The ~econd module i8 indicated partially.
The machine desari~ed i~ set up for the production of reinforcing cagee having a maximum of twenty ~our longitudinal bar~, i.e. in each ca~e twenty fo~r cl~mping slot9 are provided on the support di8~ 3, welding ~upports 7 and collecting tube~ 8 on the main di~k 2, radial ~lot~ 17 on the guide star 1~ and guide mouthpieces 39 on the ~upporting disk 51. On the other hand, only one group of six longitudinal wires can be fed in at one time, becau~e the wlre feed device in each case has only ~ix feed roller set~, guide tube~ 37 and cutting devices 38. The diameter of the reinforcing cage can be larger or smaller than the delivery dlameter, l.e. the diametric separation of the guide mouthpleces. Fewer longitudinal bars are normally used ln the case of small 2 V ~
cage diameters and more longitudinal bars in the case of large cage diameter~. In the repre3entation according t~
Fig. 1, the reinforcing cage 1 ha~ virtually the maximum diameter.
The machine de~crlbed operate~ unde~ the~e preconditions, for example to produce a reinforcing cage having twelve longitudinal bar~, a9 follow~: when the complete reinforcing cage has been removed and the supporting disk 3 ha~ been moved to the right again into the vicinity of the main disk 2, the welding supports 7 and the collecting tube~ 8 move radlally inward~, controlled by the hydraulic cylinder 11, until they are in the position ~hown in Figures 2 and 3, i.e. on the delivery dlameter. The axi~ separation of the collecting funnels 9 i~ the same ~ize aR that of the guide mouth-piece~ 39 in this position. By means of the radial movement, the collectlng tubes 8 are slmultaneously run into the gulde Rlots 17 of the guid~ ~tar 16 as a result of which a precl~e angular separation of 15 ln each case i~ ~n~ured. Otherw~e, the rotat~ onal co~t~ol of the maln d~sk 2 moves lt, and hence also the guide star 16 and the supporting dlsk 51, into an angular po~ition in which six of the total of twenty four guide mouthpiece~ 39 are aligned with the mouths of the guide tubes 37, i.e. the openlng~ of the cutting device~ 38. At the same time~ the feed fram~ 44 is moved by the influence of the motor 25 to the left into the delivery poeition according to Fiq.
2, shown in dashed-dotted line~ the guide mouthpiece~ 39 engaging by a short dietance into the collecting funnel~
9. In order to ensure complete engagement, but to prevent damage, becau~e of the unavoidable tolerance~ in the movement of such large machine parts, the guide mouth-pieces 39 are installed in the ~upporting di~k 51. in a re~iliently flexible manner, as Fig. 9 ~hows.
Thi~ is now the time at which the motor 32 set~
the roller sets of the feed apparatuq 21 in motion, ~o that, as a result of the effect of the~e rollers, whose running surface can be ridged, the six wires 33 are fed 20~8~
into the guide tubes 37. Th~ front end~ of ~aid wires 33 pa~s through the cutting devices 38 ~nd the gulde m~uth-piece~ 39 into the collecting funnel ~ and the collect-ing tubes a until the front ends project several centi-meters beyond the welding support8 7. At this instant, the feed fram~ 44 once again starts to move back to the right, to be precise preferably at the same rate at which the wires 33 move ~orward in the guide tubes 37. In ~onsequenc~ the wire~ remain ~tationary in the collecting tube~ 8. If th~ said rates do not correspond preci9ely or if the switching-off time~ of the drive~ do not correspond precisely~ this can be compensated for by control means. In any case~ the two drive~ 25 and 32 come to rest when the deaired length of the longitudinal bar8 is reached. This can be in the limit po~ition 9hown in the drawing~ or in any intermediate po~ition. The hydraulic cylinders 52 of the cutting device~ 38 are now operated and the six wires 33 are hence cut off. The cut-off ends ~f the longitudinal bars are, however, stLll ~nserted in the cutting sleevQs 57 so that further rotation of the main disk 2 is not yet possible.
The feed frame 44 therefore now moves a short distance backwards, 80 that the~e ends are drawn out of the cutting bushes 57 and the plate 54, but still remain in the a~sociated guide mouthpieces 39. During this small movement of the feed frame 44, the wires 33 have sufficient space behind the feed apparatus 21 to bend slightly and t~ ~bsorb this~ movement. Once the longitudlnal bar ends have been freed, the main disk 2 and hence also the ~upporting dis~ ~1 rotate further through a cycle of 30, so that a further group of 9iX
gulde mouthpiece~ is now opposite the cutting devices 38.
The feed frame 44 now moves to the left again, the cut-off ends of the longitudinal bar~ dipping into the respective central openings 58 of the supporting ring 40 and thu~ not impeding thi~ movement. The movement of the feed frame 44 continues up to the delivery position in which all the guide mouthpiece~ 3~ dip into the collecting funnels 9.
The feed apparatus 21 is now set in motion again.
A9 ~oon as the front ends of thl s~cond group of wires pro~ect a few centimeters beyond the a~sociated welding supports 7, the feed frame 44 moves backwards again, without the operation of the feed apparatus 21 being reduced. Once the intended limit po~ition is reached and the two drives 25 and 32 are stationary, the cutting devices 38 come into action. After thi~, the feed frame 44 move~ a short distance backward~ again until the ends of the cut-off longitudinal bars are freed from the cuttlng devices 38. The welding ~upports 7 together with the collect~ng tubes 8 now move radially to the de~ired cage diameter. Once the diameter is reached, the supporting disk 3 moves to the front ends of the lon-gitudi~al bars and impacts against them slightly, in order to bring all the ends into a precisely radial plane if neoessary. This is important in order that all the bar end~ engage far enough into the clamping slots and the complete reinforcing cage iB vertical. Finally, the clamping strips 6 snap closed and hold the ends fixedly.
The winding process can start.
As a deviation fxom the half loading of the machine described, with twelve longitudinal bars, it is of course also possible to manufacture cage~ having only six or having twenty four longitudinal bars. In the latter case, the cyclic movement take~ place three times, in each ca~e by 15. In addition, in the case of this machino, it is al~o po~sible to manufacture cages having four longitudinal wire~, each di~placed by 90 with respect to one another, by feeding in only two mutually diametrically opposite wira8, or by feeding ln two further wire~ once the main dlsk has been moved cyclically through 90~. The diameter of the reinforcing 35 cages iB also normally dlmensioned larger or smaller in accordance with the number of longitudinal bars. ~or very small d$ameters, every second one of the slots 17 of the guide star 16 i8 moved close to the hollow shaft 14.
2 ~
A wire feed device having more or less than BiX
feed channels can al~o be provided, depending on the maximum number of the long~tudlnal bar~ to be fed into the machine. In addition, the maximum number of longitudinal bars which can be held by the machlne may correspond to the number of feed channels of the wire feed device so that the machine can be fitted in a single proce~s, without cycling.
The proposed wire feed devLce ls thus 3uLtahle for all of the wide range of usage pos~ibilities of the reinforcing cage winding machine known per se, and in any case considerably reduces the setting up time. Modern, programmable controls for the individual drives allow all the movement processes which can be carried out ~imul-taneously also to run simultaneously and hence allow themaximum possible time saving to be achieved.
2~6gl ~ ~
l Reinforcing cage 39 Guide mouthpiece 2 Main di~k 40 Supportiny ring 3 Supporting disk 41 Rectangular frame 4 Carriage 42 Bar S ~rack rall 43 Rail 6 ~lamplng strlp 44 Feed frame 7 Welding ~upport 45 Roller palr 8 Collecting tube 46 Cro~sbar 9 Collectinq funnel 47 Rub 10 Reinforcing arm 48 Strip 11 Hydraulic cylinder 49 Intermediate bracket 12 Platform 50 Roller 13 Pedestal 51 Supporting disk 14 Hollow shaft 52 Hydraulic cylinder 15 ~earing 53 Plate 16 Guide 3tar 54 Plate 17 Guide slot 55 Lever la Chain 56 ~earing bolt 19 Pi~ton rod 57 Cutting bush 20 Welding device 58 Opening 21 Feed apparatus 59 Slot 22 Track roller 60 Ali~nment devLce 23 Rails 61 Roller 24 Pedestal 62 Wire 25 Motor 63 Alignment frame 26 Chain 64 Cross ~lide 27 Upper roller 65 Operating lever 28 ~ Lower roller 66 Clamping lever 29 Plate sprinq ~tack 67 Adjusting screw 30 Clamp~ng ~trip 31 Eccentric roller 32 Motor 33 Longitudinal wire 34 Wire roller 35 Spool frame 36 Slotted frame 37 Guide tube 38 Cutting device
Claims (9)
1. A machine for producing reinforcing cages for concrete pipes, the reinforcing cages comprising longitudinal wires and at least one winding wire wound over them and welded to them at the intersections, and the longitudinal wires being cut to length for winding, being inserted through collecting funnels and being held in a fixed position main disk and an axially displaceable supporting disk, which disks are supported on the same axis and rotate synchronously, wherein a wire feed device is provided which automatically fits the machine with the required longitudinal bars before each winding process.
2. The machine as claimed in claim 1, wherein the wire feed device comprises a feed apparatus (21) for a plurality of wires (33), adjoining guide tubes (37), whose mouths are aligned with the collecting funnels (9), and a cutting device (38) for the wires.
3. A method for fitting longitudinal bars to a machine as claimed in claim 1, wherein only a first group of longitudinal wires is fed in initially, which wires are distributed at equal angular intervals around the circumference, their number representing an integer fraction of the total number of longitudinal bars which can be held by the machine, wherein said longitudinal wires are cut off, and wherein the main disk is then further rotated through a respectively corresponding angle, and the remaining groups are fed in and cut off in a cyclic manner.
4. The machine as claimed in claim 2, wherein the number of guide tubes (37), roller sets of the feed apparatus (21) and cutting devices (38) provided in each case for a longitudinal wire to be fed is equal to an integer fraction of the total number of the longitudinal bars which can be held by the machine.
5. The machine as claimed in claim 2, wherein the wire feed device has a feed frame (44) which connects its feed apparatus (21), its guide tubes (37) and its cutting devices (38), and which can be displaced longitudinally altogether.
6. The machine as claimed in claim 5, wherein a cutting device (38) is provided on a supporting ring (40), mounted on the feed frame (44), for each longi-tudinal wire (33) to be fed, and wherein the supporting ring has openings (58; 59) between the cutting devices in the region of the arc corresponding to the axial separa-tion of the cut wires.
7. The machine as claimed in claim 2, wherein guide mouthpieces (39) arranged directly behind the cutting devices (38) in the feed direction, are arranged on a supporting disk (51) which can rotate with the main disk (2) and can be displaced longitudinally with the feed frame (44).
8. The machine as claimed in claim 7, wherein a hub (47), which is rotationally fixed and can be displaced longitudinally, is arranged on the shaft (14), of the main disk (2), on which hub (47) the supporting disk (51) of the guide mouthpieces is mounted and which is held on the feed frame (44) by an axial driving connection (50).
9. The machine as claimed in claim 1, having radially moveable collecting tubes and welding supports, wherein the collecting tubes (8) are supported by a guide star (16) which is mounted on the shaft (14) of the main disk and forms radial slots (17).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP92103943A EP0561007B1 (en) | 1992-03-07 | 1992-03-07 | Machine for and method of producing reinforcing cages for concrete pipes |
| EP92103943.4 | 1992-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2068140A1 true CA2068140A1 (en) | 1993-09-08 |
Family
ID=8209411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002068140A Abandoned CA2068140A1 (en) | 1992-03-07 | 1992-05-07 | Machine and method for producing reinforcing cages for concrete pipes |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5271436A (en) |
| EP (1) | EP0561007B1 (en) |
| CA (1) | CA2068140A1 (en) |
| DE (1) | DE59204507D1 (en) |
| ES (1) | ES2082249T3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113677453A (en) * | 2019-04-04 | 2021-11-19 | Mbk机械工程有限公司 | Cage welding machine and device for assembling same |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0566011B1 (en) * | 1992-04-17 | 1997-07-16 | Angelo Candiracci | Feeder device for machines for manufacturing electrically welded metallic nets |
| AT404566B (en) * | 1993-07-23 | 1998-12-28 | Filzmoser Maschinenbau Ges M B | Straightening and cutting machine for processing concrete reinforcing steel |
| JP2587905B2 (en) * | 1994-04-12 | 1997-03-05 | 株式会社松村組 | Reinforcing cage manufacturing equipment |
| GR1003438B (en) * | 1997-12-31 | 2000-09-25 | "������" ������� ������� & ��� �.�. | Equipment for the automatic assembly of the rectilinearly shaped concrete reinforcing iron bars |
| AUPR300301A0 (en) * | 2001-02-09 | 2001-03-08 | Cagemaker Equipment Pty Ltd | A former associated with an apparatus for making cages |
| ITUD20010055A1 (en) * | 2001-03-19 | 2002-09-19 | Piegatrici Macch Elettr | DEVICE AND PROCEDURE FOR COMPLETING REINFORCEMENT CAGES |
| CN101648249B (en) * | 2008-08-14 | 2012-06-13 | 孟祥建 | Radial feeding device of welding head of taper welding machine |
| DE102008046554A1 (en) | 2008-09-10 | 2010-03-11 | Müller, Friedrich, Dr. | nail clippers |
| GR1007035B (en) * | 2009-07-22 | 2010-10-27 | Αντωνιος Παναγιωτη Αναγνωστοπουλος | Method and system for feeding arc welding machines with longitudinal wires for the production of grids |
| US8533956B2 (en) * | 2009-11-25 | 2013-09-17 | Jack Perry | Rebar installation system and method of securing rebar |
| DE102010054111B4 (en) * | 2010-12-10 | 2013-06-13 | Wafios Ag | Straightening device for the rotating straightening of wire |
| CN103170715B (en) * | 2011-12-22 | 2015-05-20 | 张之强 | Electric pole seam welder |
| GR1008523B (en) | 2014-04-01 | 2015-07-09 | Αντωνιος Παναγιωτη Αναγνωστοπουλος | Method and system for feeding mesh-producing machinery with longitudinal wires or iron rods |
| DE102016108098A1 (en) * | 2016-05-02 | 2017-11-02 | Mbk Maschinenbau Gmbh | Device for producing reinforcements |
| US10654091B2 (en) | 2016-08-02 | 2020-05-19 | Dimension Fabricators, Inc. | Rebar cage assembly apparatus |
| CN106180495A (en) * | 2016-08-31 | 2016-12-07 | 张家港协欣机械有限公司 | A kind of wide-angle wrapping machine |
| CN106799443A (en) * | 2017-03-21 | 2017-06-06 | 天津芮盛汽车部件有限公司 | Steel wire bending wire sleeve |
| DE102017109720A1 (en) * | 2017-05-05 | 2018-11-08 | Mbk Maschinenbau Gmbh | Apparatus for producing a reinforcing body and machine with such a device |
| CN110605348A (en) * | 2019-10-14 | 2019-12-24 | 济宁市中路智能科技有限公司 | Novel rib winding machine |
| BR112022022186A2 (en) | 2020-07-02 | 2023-01-17 | Mbk Maschb Gmbh | DEVICE FOR THE PRODUCTION OF A METAL MESH REINFORCEMENT |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2903553A (en) * | 1958-02-03 | 1959-09-08 | American Pipe & Constr Co | Continuous cage-making machine |
| DE1552159B2 (en) * | 1966-12-24 | 1977-05-18 | Ed. Züblin AG, 7000 Stuttgart | MACHINE FOR THE CONTINUOUS MANUFACTURING OF REINFORCEMENT CABLES |
| JPS499958B1 (en) * | 1969-04-12 | 1974-03-07 | ||
| DE2720970A1 (en) * | 1977-05-10 | 1978-11-16 | Mbk Maschinenbau Gmbh | Wire reinforcing frame for concrete posts and piles - uses discs to support longitudinal wires during welding of cross wires |
| DE2945556C2 (en) * | 1979-11-10 | 1986-08-14 | Mbk Maschinenbau Gmbh, 7964 Kisslegg | Machine for the production of reinforcement bodies for precast concrete parts, in particular pipes |
| DE2946297C2 (en) * | 1979-11-16 | 1986-08-07 | Mbk Maschinenbau Gmbh, 7964 Kisslegg | Machine for the production of reinforcement bodies for concrete pipes |
| DE3422420A1 (en) * | 1984-06-16 | 1985-12-19 | Mbk Maschinenbau Gmbh, 7964 Kisslegg | MACHINE FOR PRODUCING REINFORCEMENT BODIES FOR CONCRETE PIPES |
| DE3611482A1 (en) * | 1986-04-05 | 1987-10-08 | Zueblin Ag | Machine for producing reinforcing cages for reinforced-concrete pipes or the like |
| AT400934B (en) * | 1988-11-30 | 1996-04-25 | Evg Entwicklung Verwert Ges | METHOD AND SYSTEM FOR FEEDING LENGTH ELEMENTS FROM ROUND OR FLAT MATERIAL TO A CONTINUOUS WELDING MACHINE FOR GRIDS OR GRIDS |
-
1992
- 1992-03-07 DE DE59204507T patent/DE59204507D1/en not_active Expired - Fee Related
- 1992-03-07 ES ES92103943T patent/ES2082249T3/en not_active Expired - Lifetime
- 1992-03-07 EP EP92103943A patent/EP0561007B1/en not_active Expired - Lifetime
- 1992-05-07 CA CA002068140A patent/CA2068140A1/en not_active Abandoned
- 1992-05-08 US US07/880,037 patent/US5271436A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113677453A (en) * | 2019-04-04 | 2021-11-19 | Mbk机械工程有限公司 | Cage welding machine and device for assembling same |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0561007B1 (en) | 1995-11-29 |
| DE59204507D1 (en) | 1996-01-11 |
| EP0561007A1 (en) | 1993-09-22 |
| US5271436A (en) | 1993-12-21 |
| ES2082249T3 (en) | 1996-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2068140A1 (en) | Machine and method for producing reinforcing cages for concrete pipes | |
| JP3461370B2 (en) | Cable feed and change equipment for cable processing machines | |
| US5281289A (en) | Process for the manufacturing of a tire and machines for the carrying out of the process | |
| US20080016676A1 (en) | Automatic winder for an inside brushless stator | |
| JPH0620661B2 (en) | Equipment for correcting and shearing wire rods | |
| JPS5836577B2 (en) | A device for winding the stator coil of an electrical machine | |
| EP1364726B1 (en) | Reinforcement cage making apparatus | |
| EP1398091A3 (en) | Band plate winding system | |
| US4663822A (en) | Cutter/stripper/coiling apparatus for thick cable segments | |
| US3437114A (en) | Machine for making a wire cage | |
| KR960006056B1 (en) | Winding apparatus of the coil for electric machine | |
| CN110379565A (en) | A kind of harness is put automatically twines equipment and stranding machine | |
| EP1637250B1 (en) | Machine for the continuous manufacture of reinforcement cages, in particular with non-circular sections | |
| DE60206112T2 (en) | Laser cutting machine for tubes with different cross sections and diameters | |
| CN109128846B (en) | Pipe fitting production facility | |
| US4228335A (en) | Machine for producing reinforcements, in particular for reinforced concrete, and the reinforcements produced thereby | |
| EP3287401B1 (en) | Reel change device and reel change method | |
| EP0593805B1 (en) | Coil manufacturing device | |
| EP0568139B1 (en) | Device for stripping of round wires | |
| EP0161573B1 (en) | Method of and device for winding wire-wound coils, especially field oils of electric machines | |
| RU1804363C (en) | Method and plant for manufacture of two-layer welder lattice framework bent in form of bow | |
| EP0623990B1 (en) | Armature winding machine | |
| US7631943B2 (en) | Feeding bristles to brush-making machine | |
| JPH0651298U (en) | Short wire stranding device | |
| DE2654032A1 (en) | Coil winder with coil formers mounted in row - has support shaft producing rotation effect motion to guide by swivel and shifting motion |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |