CN105234218A - Automatic bending and blanking device - Google Patents

Automatic bending and blanking device Download PDF

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Publication number
CN105234218A
CN105234218A CN201510795404.9A CN201510795404A CN105234218A CN 105234218 A CN105234218 A CN 105234218A CN 201510795404 A CN201510795404 A CN 201510795404A CN 105234218 A CN105234218 A CN 105234218A
Authority
CN
China
Prior art keywords
hole
pedestal
pipe fitting
boss
gear
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.)
Granted
Application number
CN201510795404.9A
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Chinese (zh)
Other versions
CN105234218B (en
Inventor
白永洁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGBO TAIER AUTOMOBILE PARTS CO Ltd
Original Assignee
NINGBO TAIER AUTOMOBILE PARTS CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
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Application filed by NINGBO TAIER AUTOMOBILE PARTS CO Ltd filed Critical NINGBO TAIER AUTOMOBILE PARTS CO Ltd
Priority to CN201510795404.9A priority Critical patent/CN105234218B/en
Publication of CN105234218A publication Critical patent/CN105234218A/en
Application granted granted Critical
Publication of CN105234218B publication Critical patent/CN105234218B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00Bending rods, profiles, or tubes
    • B21D7/02Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/022Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment over a stationary forming member only
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/20Storage arrangements; Piling or unpiling

Abstract

The invention discloses an automatic bending and blanking device. The device comprises a base (1), and a reference surface (3) for containing the free end of a pipe fitting (2) and allowing the free end of the pipe fitting (2) to rotate is arranged on the base (1). A boss (4) which is higher than the reference surface (3) so as to be used for positioning the other end of the pipe fitting (2) is arranged on the base (1), and an opening (5) for containing the end of the pipe fitting (2) is arranged on the boss (4); and a through hole (6) for enabling the bent pipe fitting (2) to slide in the vertical direction is formed in the base (1) in the vertical direction, and the shape of the through hole (6) is consistent with that of the bend pipe fitting (2). According to the automatic bending and blanking device, the maintenance cost is low, operation is easy and convenient, and manual pipe taking is not needed.

Description

Automatic bending doffer
Technical field
The present invention relates to pipe fitting brake techniques field, particularly relate to a kind of bending doffer automatically.
Background technology
Current, the bending machine on market mainly comprises CNC tube bending machine, hydraulic pipe bender etc., the problem of high, the complicated operation of ubiquity maintenance cost in the bending machine of prior art.In addition, in prior art, bending machine needs to be placed in bending machine by pipe fitting one by one, also to one by one the pipe fitting of forming be taken out after pipe fitting bending, therefore in taking-up process, if there is the unreliable problem of work in bender causes industrial injury with regard to the easy operating personnel to taking out, that is, also there is the safety problem caused owing to needing manually to get pipe in bending machine of the prior art.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes existing technological deficiency, provides a kind of maintenance cost low, easy and simple to handle and automatic bending doffer without the need to manually getting pipe.
Technical solution of the present invention is, there is provided a kind of automatic bending doffer with following structure: comprise pedestal, pedestal is provided with for the datum level placing pipe fitting free end and rotate for pipe fitting free end, pedestal is provided with the boss of locating for pipe fitting the other end higher than datum level, and boss is provided with the opening for accommodating pipe fitting end; Described pedestal is vertically provided with the through hole that the pipe fitting after for bending vertically slides, shape of through holes is consistent with the shape after pipe fitting bending, through hole vertically through pedestal upper surface and lower surface and through hole vertically with open communication, through hole comprises the first through hole be positioned at immediately below boss and the second through hole be positioned at outside boss, and the first through hole is communicated with by arc-shaped through-hole with the second through hole; Sidewall near boss side on the perpendicular crossing with datum level and the second through hole on boss is in same perpendicular; Described pedestal is provided with the block for pipe fitting end location, and block is fixedly connected on the end on the first through hole outside pedestal, and the lower surface of block flushes with datum level, block upper surface and boss upper surface flush; Described pedestal slidably connects and extracts to remove the straight pin to the constraint of pipe fitting one end with support tubes one end or from through hole for stretching into through hole, straight pin is arranged on and is positioned at position immediately below boss, and straight pin top edge and datum level are in same level; Described pedestal is provided with accommodating straight pin and the blind hole of sliding for straight pin, the first extension spring is provided with between straight pin and blind via bottom, straight pin extends and extends to the slide bar of pedestal outside outside pedestal, and sliding bar is connected in pedestal and slide bar is provided with linear gear rack; A pair intermeshing first gear and the second gear is rotatably connected to, the linear gear rack engaged transmission on the first gear and slide bar in described pedestal; Pedestal is rotatably connected to ratchet, ratchet one end and the second gear clamping or disengagement, and near being connected with the second extension spring be connected to for ratchet on the second gear between the end of the second gear and pedestal on ratchet; On boss near the region of perpendicular slidably connect for bending after the push rod that pushes against of pipe fitting, boss is provided with for accommodating push rod and the stepped hole slided for push rod, push rod periphery wall is provided with annular protrusion, stage clip is provided with between annular protrusion on the step surface of stepped hole and push rod, stepped hole opening part is combined with nut to be locked in stepped hole by the annular protrusion on push rod, end away from the second gear on push rod one end and ratchet pushes against, and the other end stretches out boss or is contracted in boss; Described pedestal is rotatably connected to for pipe fitting is bent into the flap consistent with shape of through holes, flap comprises for the curved portions of moulding pipe bending region and the line part for moulding pipe linearity region, pedestal is connected with the hydraulic machine for driving flap to rotate, drift on hydraulic machine contacts with the line part on flap, and is connected with the 3rd extension spring between line part on flap and pedestal.
The present invention is placed on by pipe fitting one end in the opening on boss, and the other end lies in a horizontal plane on datum level, so just can position a rectilinear pipe fitting; Wherein, support limit is carried out by straight pin below the pipe fitting end being positioned at opening; Subsequent, the drift work on hydraulic machine is rotated to drive flap, and then pipe fitting is bent into the shape consistent with shape of through holes by flap, and namely pipe fitting one end is in the opening on boss all the time, is close on the perpendicular on boss after other end bending; Pipe fitting bending is when the perpendicular of boss, and pipe fitting inner wall can promote push rod and slide to make ratchet and second be out of gear, and namely removes ratchet to the constraint of the second gear; Straight pin to be contracted in blind hole thus to relieve the supporting role of straight pin for pipe fitting under the drive of the first extension spring subsequently, and the pipe fitting namely after bending is vacant state; Meanwhile, flap resets under the drive of the 3rd extension spring, thus the pipe fitting after bending just can fall along the inwall of through hole.In whole pipe fitting Forging Process, operating personnel only need pipe fitting to be placed on pedestal, in pipe fitting Forging Process, automatic blanking can also be carried out to the pipe fitting after bending, do not need operating personnel to be extend into by hand above pedestal to operate the pipe fitting after bending, namely whole Forging Process is very easy for the operation requirements of operating personnel, and without the need to manually getting pipe, adds the security of pipe fitting bending for operating personnel; Also have, parts involved by structure of the present invention are all a little simple parts, gear, tooth bar are all that standard component can directly be buied in market, the parts such as pedestal, flap, straight pin are all simple structure, the cost of production and processing is low, that is, and these parts otherwise be exactly that purchase cost is low, be exactly that production cost is low, so the cost that structure is being safeguarded in the present invention also decreases in the future.Wherein, in the put procedure of pipe fitting, can the one end near straight pin on pipe fitting be resisted against on block, position with this one end to pipe fitting, make pipe fitting have a benchmark when placing, and then make bending pipe fitting specification out always, the pipe shape namely after bending is consistent; That is, when mass bending pipe fitting, can ensure that the pipe shape after each bending is consistent.Therefore, the invention provides low, the easy and simple to handle and automatic bending doffer without the need to manually getting pipe of a kind of maintenance cost.
Preferred as one, described slide bar is slidably connected in pedestal by dovetail groove.Preferred by this, can ensure that slide bar can not depart from from pedestal in sliding process, oat tail groove structure not only can play guide effect to the slip of slide bar, plays spacing effect can also to the slip of sliding.
Preferred as one, the first described extension spring is socketed on slide bar, and first extension spring one end is connected with slide bar junction with straight pin, and the other end is connected with at the bottom of hole.Preferred by this, can ensure the first extension spring uniform force in deformation process, ensure that the first extension spring two ends are connected with straight pin respectively, the other end is connected with blind via bottom, improves the reliability of extension spring work.
Preferred as one, second described extension spring one end is connected with the end near the second gear on ratchet, and the other end is connected with pedestal.Preferred by this, can ensure ratchet hand second tension spring tension effect and with the second gear clamping, prevent the second gear reversion.
Preferred as one, described straight pin has two, and two straight pins are in same level, and two straight pins and slide bar end form a U-shaped structure.Preferably can increase the pipe fitting strong point along its length by this, expand the length range that straight pin supports for pipe fitting, make pedestal more reliable for the support of pipe fitting.
Accompanying drawing explanation
Fig. 1 is partial sectional view of the present invention.
Fig. 2 is top view when not placing pipe fitting in the present invention.
Fig. 3 is the structural representation of pedestal in the present invention.
Top view when Fig. 4 is the pipe fitting that placed in the present invention not by bending.
Fig. 5 placed by the top view of bending rear tubular member in the present invention.
Fig. 6 is the structural representation of another angle of pedestal in the present invention.
Shown in figure: 1, pedestal, 2, pipe fitting, 3, datum level, 4, boss, 5, opening, 6, through hole, 7, perpendicular, 8, sidewall, 9, straight pin, 10, first extension spring, 11, blind hole, 12, slide bar, 13, linear gear rack, 14, push rod, 15, stepped hole, 16, annular protrusion, 17, first through hole, 18, second through hole, 19, arc-shaped through-hole, 20, nut, 21, flap, 22, curved portions, 23, line part, 24, drift, 25, first gear, 26, second gear, 27, ratchet, 28, second extension spring, 29, 3rd extension spring, 30, stage clip, 31, block.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
As shown in the figure, operation principle of the present invention: first, first promote slide bar, until straight pin end abuts to the first through-hole wall, on the one hand can strut the first extension spring in sliding bar process, slide bar can be stirred ratchet by the transmission of linear gear rack and the first gear, the second gear and periodically rotates around a direction on the other hand, and ratchet is under the effect of the second extension spring, can be connected to all the time on the second gear, in case on-slip bar automatically resets; Being placed on pipe fitting one end of non-bending subsequently in the opening on boss and being positioned at the top of straight pin, the other end lies in a horizontal plane in the datum level on pedestal, as shown in Figure 4; Wherein, pipe fitting is resisted against on block near one end of straight pin, position with this one end to pipe fitting, make pipe fitting have a benchmark when placing, and then make bending pipe fitting specification out always, the pipe shape namely after bending is consistent;
Then, the drift work on hydraulic machine is rotated to drive flap, thus is bent into consistent with shape of through holes to pipe fitting, as shown in Figure 5; In flap rotation process, also can pull open the 3rd extension spring, make the 3rd extension spring distortion to lay in the active force needed for flap reset; After preventing pipe fitting bending, resilience or plastic deformation can occur, drift can continue for some time the active force of flap, such as 1 ~ 3min, specifically continues how long will see the pipe fitting concrete what material is made and determines;
Wherein, in pipe fitting Forging Process, once the push rod ends contact of perpendicular position on pipe fitting inner wall and boss, pipe fitting will push push rod and slide; So push rod will promote ratchet rotation to remove the constraint of ratchet to the second gear, and namely the second gear just can reverse; Subsequently, straight pin can slide under the pulling force effect of the first extension spring, and departs from the first through hole, is contracted in blind hole, namely relieves supporting role pipe fitting being positioned to open area;
Meanwhile, drift also can terminate active force to flap and retracted for clearance, and flap can rotate backward reset under the pulling force effect of the 3rd extension spring;
Finally, the pipe fitting after bending had not both had the supporting role of straight pin, did not have the pressure of flap yet, thus the pipe fitting after bending can along the inwall landing of through hole, and namely the pipe fitting after bending departs from the datum level on pedestal and boss.
The automatic bending doffer of the present invention comprises pedestal 1, pedestal 1 is provided with for the datum level 3 placing pipe fitting 2 free end and rotate for pipe fitting 2 free end, pedestal 1 is provided with the boss 4 of locating for pipe fitting 2 the other end higher than datum level 3, and boss 4 is provided with the opening 5 for accommodating pipe fitting 2 end, described pedestal 1 is vertically provided with the through hole 6 that the pipe fitting 2 after for bending vertically slides, through hole 6 shape is consistent with the shape after pipe fitting 2 bending, through hole 6 vertically through pedestal 1 upper surface with lower surface and through hole 6 be vertically communicated with opening 5, through hole 6 is comprised the first through hole 17 be positioned at immediately below boss 4 and is communicated with by arc-shaped through-hole 19 with the second through hole 18 with the second through hole 18, first through hole 17 be positioned at outside boss 4, boss 4 is in same perpendicular for the sidewall 8 near boss 4 side on the perpendicular 7 crossing with datum level 3 and the second through hole 18, described pedestal 1 is provided with the block 31 for location, pipe fitting 2 end, and block 31 is fixedly connected on the end on the first through hole 17 outside pedestal 1, and the lower surface of block 31 flushes with datum level 3, block 31 upper surface and boss 4 upper surface flush, described pedestal 1 slidably connects and extracts to remove the straight pin 9 to the constraint of pipe fitting 2 one end with support tubes 2 one end or from through hole 6 for stretching into through hole 6, straight pin 9 is arranged on and is positioned at position immediately below boss 4, and straight pin 9 top edge and datum level 3 are in same level, described pedestal 1 is provided with accommodating straight pin 9 and the blind hole 11 of sliding for straight pin 9, the first extension spring 10 is provided with between bottom straight pin 9 and blind hole 11, straight pin 9 extends and extends to the slide bar 12 of pedestal 1 outside outside pedestal 1, and slide bar 12 is slidably connected in pedestal 1 and slide bar 12 is provided with linear gear rack 13, a pair intermeshing first gear 25 and the second gear 26, first gear 25 and linear gear rack 13 engaged transmission on slide bar 12 is rotatably connected in described pedestal 1, pedestal 1 is rotatably connected to ratchet 27, ratchet 27 one end and the second gear 26 clamping or disengagement, and near being connected with the second extension spring 28 be connected to for ratchet 27 on second gear 26 between the end of the second gear 26 and pedestal 1 on ratchet 27, on boss 4 near the region of perpendicular 7 slidably connect for bending after the push rod 14 that pushes against of pipe fitting 2, boss 4 is provided with for accommodating push rod 14 and the stepped hole 15 slided for push rod 14, push rod 14 periphery wall is provided with annular protrusion 16, stage clip 30 is provided with between annular protrusion 16 on the step surface of stepped hole 15 and push rod 14, stepped hole 15 opening part is combined with nut 20 to be locked in stepped hole 15 by the annular protrusion 16 on push rod 14, end away from the second gear 26 on push rod 14 one end and ratchet 27 pushes against, the other end stretches out boss 4 or is contracted in boss 4, described pedestal 1 is rotatably connected to for pipe fitting 2 is bent into the flap 21 consistent with through hole 6 shape, flap 21 comprises for the curved portions 22 of moulding pipe 2 bending region and the line part 23 for moulding pipe 2 linearity region, pedestal 1 is connected with the hydraulic machine for driving flap 21 to rotate, drift 24 on hydraulic machine contacts with the line part 23 on flap 21, and is connected with the 3rd extension spring 29 between line part 23 on flap 21 and pedestal 1.
Described slide bar 12 is slidably connected in pedestal 1 by dovetail groove.Described to be slidably connected the raised line referring to and slide bar 12 can be arranged dove-tail form by dovetail groove, and pedestal 1 can be arranged the dove-tail form chute slided for dove-tail form raised line, thus slide bar 12 both can slide along the length direction of chute, and, the raised line of dove-tail form is can not from the vertical disengaging of dove-tail form chute, and dove-tail form raised line can only slip away from the both ends of dove-tail form chute.
The first described extension spring 10 is socketed on slide bar 12, and first extension spring 10 one end is connected with slide bar 12 junction with straight pin 9, and the other end is connected with at the bottom of blind hole 11 hole.
Second described extension spring 28 one end is connected with the end near the second gear 26 on ratchet 27, and the other end is connected with pedestal 1.
Described straight pin 9 has two, and two straight pins 9 are in same level, and two straight pins 9 form a U-shaped structure with slide bar 12 end, as shown in Figure 1.Wherein, the concrete quantity of straight pin 9 depending on actual conditions, can carry out concrete plus-minus.
The foregoing is only preferred embodiment of the present invention, not for limiting the scope of the invention.All within the claims in the present invention, any amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (5)

1. an automatic bending doffer, it is characterized in that: it comprises pedestal (1), pedestal (1) is provided with for the datum level (3) placing pipe fitting (2) free end and rotate for pipe fitting (2) free end, pedestal (1) is provided with the boss (4) of locating for pipe fitting (2) the other end higher than datum level (3), and boss (4) is provided with the opening (5) for accommodating pipe fitting (2) end, described pedestal (1) is vertically provided with the through hole (6) that the pipe fitting (2) after for bending vertically slides, through hole (6) shape is consistent with the shape after pipe fitting (2) bending, through hole (6) vertically through pedestal (1) upper surface with lower surface and through hole (6) be vertically communicated with opening (5), through hole (6) comprises the first through hole (17) be positioned at immediately below boss (4) and the second through hole (18) being positioned at boss (4) outside, first through hole (17) is communicated with by arc-shaped through-hole (19) with the second through hole (18), boss (4) is in same perpendicular for the upper sidewall (8) near boss (4) side of the perpendicular (7) crossing with datum level (3) and the second through hole (18), described pedestal (1) is provided with the block (31) for location, pipe fitting (2) end, block (31) is fixedly connected on the upper end near pedestal (1) outside of the first through hole (17), the lower surface of block (31) flushes with datum level (3), block (31) upper surface and boss (4) upper surface flush, described pedestal (1) slidably connects and extracts to remove the straight pin (9) to the constraint of pipe fitting (2) one end with support tubes (2) one end or from through hole (6) for stretching into through hole (6), straight pin (9) is arranged on and is positioned at position immediately below boss (4), and straight pin (9) top edge and datum level (3) are in same level, described pedestal (1) is provided with accommodating straight pin (9) and the blind hole (11) of sliding for straight pin (9), the first extension spring (10) is provided with between straight pin (9) and blind hole (11) bottom, straight pin (9) extends towards pedestal (1) outside and extends to the outside slide bar (12) of pedestal (1), and slide bar (12) is slidably connected at that pedestal (1) is interior and slide bar (12) is provided with linear gear rack (13), a pair intermeshing first gear (25) and the second gear (26) is rotatably connected to, the first gear (25) and linear gear rack (13) engaged transmission on slide bar (12) in described pedestal (1), pedestal (1) is rotatably connected to ratchet (27), ratchet (27) one end and (26) clamping of the second gear or disengagement, and between the upper end near the second gear (26) of ratchet (27) and pedestal (1), be connected with the second extension spring (28) be connected to for ratchet (27) on the second gear (26), the upper region near perpendicular (7) of boss (4) slidably connect for bending after the push rod (14) that pushes against of pipe fitting (2), boss (4) is provided with for accommodating push rod (14) and the stepped hole (15) slided for push rod (14), push rod (14) periphery wall is provided with annular protrusion (16), stage clip (30) is provided with between annular protrusion (16) on the step surface of stepped hole (15) and push rod (14), stepped hole (15) opening part is combined with nut (20) to be locked in stepped hole (15) by the annular protrusion (16) on push rod (14), end away from the second gear (26) on push rod (14) one end and ratchet (27) pushes against, the other end stretches out boss (4) or is contracted in boss (4), described pedestal (1) is rotatably connected to for pipe fitting (2) is bent into the flap (21) consistent with through hole (6) shape, flap (21) comprises the curved portions (22) for moulding pipe (2) bending region and the line part (23) for moulding pipe (2) linearity region, pedestal (1) is connected with the hydraulic machine for driving flap (21) to rotate, drift (24) on hydraulic machine contacts with the line part (23) on flap (21), and be connected with the 3rd extension spring (29) between line part (23) on flap (21) and pedestal (1).
2. automatic bending doffer according to claim 1, is characterized in that: described slide bar (12) is slidably connected in pedestal (1) by dovetail groove.
3. automatic bending doffer according to claim 1, it is characterized in that: described the first extension spring (10) is socketed on slide bar (12), and the first extension spring (10) one end is connected with slide bar (12) junction with straight pin (9), the other end is connected with at the bottom of blind hole (11) hole.
4. automatic bending doffer according to claim 1, it is characterized in that: described the second extension spring (28) one end is connected with the upper end near the second gear (26) of ratchet (27), and the other end is connected with pedestal (1).
5. automatic bending doffer according to claim 1, it is characterized in that: described straight pin (9) has two, and two straight pins (9) are in same level, two straight pins (9) form a U-shaped structure with slide bar (12) end.
CN201510795404.9A 2015-11-18 2015-11-18 Automatic bending doffer Expired - Fee Related CN105234218B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510795404.9A CN105234218B (en) 2015-11-18 2015-11-18 Automatic bending doffer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510795404.9A CN105234218B (en) 2015-11-18 2015-11-18 Automatic bending doffer

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CN105234218A true CN105234218A (en) 2016-01-13
CN105234218B CN105234218B (en) 2017-11-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111922140A (en) * 2020-09-03 2020-11-13 烟台世瑞金属制品有限公司 Steel pipe bending device capable of preventing elastic deformation

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Publication number Priority date Publication date Assignee Title
US4311031A (en) * 1978-07-27 1982-01-19 Rigobert Schwarze Pipe bending machine
US5042282A (en) * 1988-05-13 1991-08-27 Usui Kokusai Sangyo Kaisha Ltd. Small-diameter metallic conduit bending machine
WO2010025883A2 (en) * 2008-09-04 2010-03-11 Uni Siegen Method and bending tool for bending pipes over a mandrel, and beading tool
CN201579319U (en) * 2009-11-18 2010-09-15 鲁西工业装备有限公司 High-pressure pipeline bending device
CN201969757U (en) * 2010-12-22 2011-09-14 芜湖兴华照明电器有限公司 Manual bender
CN103600004A (en) * 2013-11-29 2014-02-26 中山市奥美森工业有限公司 Discharging mechanism of pipe bending machine
CN204365957U (en) * 2014-12-23 2015-06-03 浙江兴南链条股份有限公司 A kind of high-efficient automatic twisted chain machine
CN204606246U (en) * 2015-05-08 2015-09-02 康延成 For the machine of sub-material

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4311031A (en) * 1978-07-27 1982-01-19 Rigobert Schwarze Pipe bending machine
US5042282A (en) * 1988-05-13 1991-08-27 Usui Kokusai Sangyo Kaisha Ltd. Small-diameter metallic conduit bending machine
WO2010025883A2 (en) * 2008-09-04 2010-03-11 Uni Siegen Method and bending tool for bending pipes over a mandrel, and beading tool
WO2010025883A3 (en) * 2008-09-04 2010-06-17 Uni Siegen Method and bending tool for bending pipes over a mandrel with an adjustable mandrel retainer means beading tool and rotating bending tool with such a beading tool
CN201579319U (en) * 2009-11-18 2010-09-15 鲁西工业装备有限公司 High-pressure pipeline bending device
CN201969757U (en) * 2010-12-22 2011-09-14 芜湖兴华照明电器有限公司 Manual bender
CN103600004A (en) * 2013-11-29 2014-02-26 中山市奥美森工业有限公司 Discharging mechanism of pipe bending machine
CN204365957U (en) * 2014-12-23 2015-06-03 浙江兴南链条股份有限公司 A kind of high-efficient automatic twisted chain machine
CN204606246U (en) * 2015-05-08 2015-09-02 康延成 For the machine of sub-material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111922140A (en) * 2020-09-03 2020-11-13 烟台世瑞金属制品有限公司 Steel pipe bending device capable of preventing elastic deformation
CN111922140B (en) * 2020-09-03 2021-01-05 烟台世瑞金属制品有限公司 Steel pipe bending device capable of preventing elastic deformation

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