DE2157567A1 - Block formed by a stack of sheets of glass, and the method and apparatus for making it - Google Patents

Description

Dr. F. Zumstein Sr. - Dr. E. Assmann
Dr. R. Koenigsberger - Dipl. Pnys. R. Holzbauer

Dr. F. Zumstein jun.

Patent attorneys

8 Munich 2, Bräuhausstraße 4 / III

BOUSSOIS SOUCHOI NEUVESEL Gas ₁

Block formed by a stack of smooth glass, and Method and device for its manufacture.

The invention has a block special

Art, which is formed by a stack of glass panels separated by intermediate strips, and a method and an apparatus for the production of such blocks is the subject.

It is known to manufacture blocks from glass sheets, in which the generally flat sheets through Intermediate strips of paper are separated.

However, strips made of this material have the disadvantage that they slide against each other Boards allow what is disruptive for the transport of the block and requires careful wedging of the same.

The use of rubber links has also been proposed. Because the- coefficient of friction This material is larger than that of the paper, the stability of the block is improved. These strips however, do not allow the glass to be scratched by means of

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of a cutting tool. They need to be removed beforehand what represents an annoying compulsion. Furthermore, the intermediate strips work in the same way on the two adjacent glass panels stick, the lifting of the upper panel causes an irregular detachment of the toe strips, which makes handling easier is harmful.

It has also been suggested on each used to form a stack manufactured glass sheet to apply intermediate elements, which by sections of a flexible, in particular consisting of polyvinyl chloride strips are formed, one side of which is rough and the other Side is smooth. These sections adhere with their smooth Side on the glass sheet by surface effect, while its other side with another glass sheet, which is in the stack next to the board to which they adhere, can come into contact without adhering to it.

These spacers are less bulky

and cheaper than the paper strips commonly used today. They do not have the disadvantage of the rubber elements when they are lifted off, but they do not guarantee the desired one Stability of the block as they allow the glass panels to slide against each other. Furthermore, the attachment of the intermediate sections offers certain difficulties. Each of the to be separated by the intermediate strips or to be provided with intermediate strips Tablets require individual treatment. The attachment of the intermediate elements requires if they are done by hand a considerable amount of manual work (attaching the rubber spacers). The automatic, according to Art machines designed for labeling machines used to apply the flexible strip sections are expensive, because they perform intricate operations, namely the separation of the flexible material coming from a material reserve Strips in sections, the application of these sections in separate locations on one side of a glass sheet, the repetition of the process on several glass panels and the compilation of the panels treated one after the other a stack · In practice, the intermediate sections are applied at a specially trained job,

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while the glass panels move to walk one after the other through this work place. This method can only be used after the glass panels themselves have been manufactured. This must be so handled in the factory prior to application of the intermediate pieces what ^& AAGER damage brings.

The inventive block of stacked glass panels and the method and device for Production of the same are intended to remedy the above disadvantages.

The block according to the invention consists of a stack of glass plates, which are separated from each other by intermediate strips are made of a thermoplastic material, one side of which adheres to the adjacent glass panel, is characterized by the fact that each strip has its both sides are hot-glued to the adjacent glass panels, and that the adhesion is achieved by hot-glueing one side the strip on the adjacent glass panel is considerably stronger than the other side's sticking to the other panel is. .

Thanks to this arrangement, a block can be produced which has great stability during storage and during transport, in which, however, the removal of a sheet of glass does not result in the tearing off of the intermediate strips causes which have a stronger adhesion for the adjacent panel.

The greater adhesiveness of the intermediate strips is "preferably due to one on all glass panels of the Blocks repeating arrangement guaranteed. The removal of successive panels therefore does not affect the Attachment of the intermediate strips from one board to the other.

The inventive method for producing a block of the above type starting from a continuously produced and advancing glass ribbon, which is scored and then broken, whereupon the so formed Panels stacked with attachment strips is characterized in that the intermediate strips are hot-bonded onto the glass ribbon before it is broken are applied, whereupon the tape in separate

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Panels are divided, each of which bears an intermediate strip, whereupon the thus equipped glass panels are stacked.

The inventive device for production of the block is characterized in that it has a conveyor for the glass panel to be filled Arrangement of reels for the output of the intermediate strips and means carries, welehe the strips coming from the reels print the surface of the glass panel.

The invention is explained below by way of example with reference to the drawing.

Pig. 1 is a schematic perspective view of a block of glass sheets according to the invention.

Pig. Figure 2 is a sectional view of a detail the fig. 1 .

3 is a diagrammatic diagram of the device according to the invention.

Fig. 4 is a diagrammatic overall view of an industrial design for horizontally moving Glass panels.

FIG. 5 is a corresponding to FIG Side view.

FIG. 6 is the top view corresponding to FIG. 5.

Fig. 7 is a vertical section along the line VII-VII of Fig. 5 on a larger scale.

Fig. 8 shows the detail of the attachment of two tongues on a larger scale.

Figure 9 is a cross-section along the line IX-IX of FIG. 8.

Fig. 10 is a large-scale cross-section of a tongue.

FIG. 11 is the view corresponding to FIG. 10 of the tongue in the operating position.

Figure 12 is a large scale view of a guide trough for the strip.

Figure 13 is a section along the line XIII-XIII of FIG. 12.

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Pig. 14 is a diagrammatic overall view of an embodiment for vertically moving glass panels.

Pig · 15 is a section along a through the lines XY-XV of the Pig. 14 going vertical plane on a larger scale.

Pig. 16 shows a guide tube of the Pig device. 15 in section along the line XVI-XVI of the Pig. 17th on a large scale.

Pig. 17 is a section along the line XVII-XVII the Pig. 16.

Pig. Fig. 18 is a side view of an embodiment modification for printing the strips to horizontal ones G-last boards.

Pig. 19 is a the pig. 18 corresponding work scheme.

Pig. 20 is a section of a second embodiment for vertically moving glass panels.

Pig. 21 is a schematic of a third embodiment for vertically moving glass panels.

Pig. 22 is a pig. 21 corresponding diagrammatic view.

In Pig. 1 you can see a block, which

is formed by a stack of glass sheets 1, which are stored flat in the example described (but can just as well be stored at an angle by support themselves with their edges on a holder).

According to the invention, the various

Panels 1 separated by intermediate strips 2 made of a thermoplastic material, which extend from the edge of each Extend the board to the other. Each strip 2 is with its two sides 2a, 2b to the upper panel 1a and the lower one Table 1b (Pig. 2) hot-glued, the adhesion as a result of the However, hot glueing the side 2b to the panel 1b is significant stronger than that of the side 2a on the panel 1a, without the strip 2 incidentally having a discontinuous structure in the transverse direction, since these different adhesiveness of a difference in conditions, in particular

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special of the thermal conditions, according to which the hot-sealing was carried out. In practice it can Ratio of adhesive capabilities several units or even several tens (e.g. hundreds of times).

The sticking between the intermediate strips _: -2

and the panel 1, between which this adhesion should be stronger, should preferably be sufficient to enable the cutting of the glass in the hot or cold state by stranding with subsequent breaking of the side of the panel 1 bearing the intermediate strip 2 without lifting the intermediate strip. Cutting in the cold state is understood to mean a cut which is carried out when the glass has a ^{temperature below 50 °} C., for example in particular room temperature.

In addition, the flexible intermediate strips should be easily removable when cold, e.g. through Pulling by hand. The strips should not have any traces after they have been removed after any length of time they have been in contact with the glass leave on this.

For this purpose, the material of the strip 2 forming is selected among thermoplastic materials, which without adhesive, by heat bonding on the glass sheet at a temperature of the order of bulky 50 to 150 ⁰ C and preferably adhere from 70 to 100 ° C.

The intermediate strips 2 are preferably formed by polyethylene skins, in particular from one Low density polyethylene (high pressure polyethylene) which has a degree lying approximately between 1.7 and 2.3.

According to another design

the intermediate strips 2 formed by a polyvinyl chloride skin, both sides of which are smooth.

Preferably, flexible strips between 3 and 30 mm wide are used, but this information is of course not a restriction. Although the thickness of these strips in a relatively widened Area can be selected, a ceiling of of the order of 0.1 mm used. A smaller thickness iat not desirable as there is a risk that

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they are smaller than the irregularities on the glass surface is. A strip thickness greater than 0.1 mm is perfectly acceptable, but it is more expensive.

According to a further characteristic of the invention, the distance D is between two consecutive ones Intermediate strips 2 smaller than the smallest width provided for the later cutting of the panels 1. If then the Glass panels are cut to form elementary plates of commercially available dimensions, at least two intermediate strips remain 2 exist on each elementary plate. For example, a distance of 20 cm can be selected if the smallest width of the elementary plates was set at 28 cm.

The block formed in this way has a remarkable stability for shocks and accelerations, which he can be exposed to during transport. Furthermore, if the top panel 1 is lifted off, keep they in a natural way those located on their surface Stripe 2. However, since the stripes on their underside are more strongly attached to the lower board, they stay on these glued on, and so on. The removal of one or more panels 1 therefore in no way affects the stability of the remaining pile.

As a result of the chosen for strip 2

Clearly, the spacing of the intermediate strips can be done once and for all, removing the glass from the manufacture to accompany and protect the boards, i.e. from every handling of the same, up to the final user (for inserting the glass into a window frame).

As a result of the chemical indifference of the

Strip 2 forming material for the glass will not damage the same observed during prolonged storage. The strips leave a free passage between the glass panels, what the formation of tine air flow between the panels and prevents any harmful effects of moisture on the glass surface.

The invention also has the advantage of providing an instant check of the quality of a stack of panels 1, since the faulty, e.g. broken

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Boards can be identified immediately.

Fig. 3 shows an advantageous embodiment of a device according to the invention for exercising the method according to the invention in their application to a glass ribbon 11, which is continuously by one of the experts known methods, such as rolling, swimming on a tin bath, drawing on a bending roller (method LIBBEY-OWENS), with the band 11 emerging from the Kuhlgalerie 12 in a horizontal position.

According to this method, the intermediate strips are continuously on top of the glass ribbon 11 Applied according to its advance in the direction F on a conveyor 13 shown schematically by drive rollers .

The location of the pressing of the strips 2 on the tape 1 is chosen so that this one for their Hot-melt adhesive has a sufficient temperature. The temperature of the belt 11 is, for example, between 50 ° C and 150 ° C and preferably between 70 and 100 C if the toe strips 2 are made of polyethylene. It is believed that this condition is fulfilled in the example under consideration, in which the strips 2 by low density polyethylene strips of 8 mm wide and 0.1 mm thick.

The dispensing device comprises an arrangement of reels 14 arranged above the belt 11, whose Axes are fixed in relation to the conveyor 13. About vertically pressure rollers 15 are arranged under the bobbins 14, which press the strips against the belt 11 under a regulated pressure.

The handling of the coils 14 is performed by the train, which the same is transmitted to the not yet adhered strips 2 through the glued already on the belt 11 portion 2b, whereby said transmission of the continuous feed of the ^B Andes 11 originates in the direction F.

The pressure generated by the pressure rollers 15 for pressing the toe strips 2 against the glass band 11 is preferably between 5 and 300 g / cm and preferably between 20 and 50 g / cm.

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G-emass a further characteristic of the invention the ■ intermediate strips 2 on the glass ribbon 11 in front the cutting through the same applied, the cutting process in a manner known per se a scoring with subsequent Breaking includes.

The scoring takes place, for example, in a manner known per se by means of a cutting portal 21, which is a cutting tool 22 carries, which slides along the portal 21 and a small wheel 23 for scoring the band 11 in the one perpendicular to F Sinn G carries. The portal 21 is in a known manner a translational movement of the glass ribbon during the Duration of the scratching process granted. The drive device is not shown.

The applicant was able to make the surprising finding that with a suitable setting of the pressure exerted by the wheel 23 on the belt 11 is able to cut through the hot-glued strips 2b at the point of the incision 17 made in the glass, without moving or tearing off these strips. If the incision 17 looks the usual, at 25 schematically Approaching the break-off device represented by a liftable rail, this creates the separation of a glass panel 1 of the volume 11. The table 1, which according to the invention formed, i.e. provided with hot-bonded intermediate strips 2, can be in contact on a storage framework 26 with a panel 1, which is produced using the same process and previously placed on the scaffolding became.

The glass sheets 1 are covered in this way with intermediate elements before they are handled became.

furthermore, experience has another surprising aspect The result showed that the combined effect of the pressure of the upper panel 1b on the hot-glued onto the panel 1a Strip 2 and that of the residual heat of these next to each other laid panels 1a, 1b originating a temperature The temperature increase on the upper side of the strips 2 of the panels was sufficient to allow them to be hot-bonded

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To effect stripes on the opposite side of panel 1b, however, this hot-melt bond is considerably weaker than the one connecting the strips 2 to the panel 1a, as a result of which the conditions provided for the block thus formed are realized.

As you can see, the application of the

Intermediate strips 2 are made continuously and automatically, so that only a small amount of monitoring personnel is required is. Furthermore, the apparatus for practicing the invention is relatively simple and inexpensive.

The invention is of course not based on that

above execution besehrankt, on which different execution modifications can be made. Thus, the invention can also be applied to "a method for the continuous production of a Tape with a perpendicular drawing process (in particular the PITTSBÜEGH and FOURCAULT methods) are used, in which the tape emerges from the cooling zone in a vertical position.

In all cases it can be useful

apply the intermediate strips to the side of the tape, which is opposite to that on which the sitting occurs. Experience has shown that breaking the tape the sharp severing of the intermediate strips softened by the heat.

Such a measure can in particular

In the LIBBEY-OWENS process, it may be of interest if there is a layer on top of the glass tape at the entrance to the cooling gallery a metal or a metal oxide is applied, which e.g. make the glass electrically conductive or semi-reflective target. When the incision is made on the top of the tape, as in Pig. 3 shown, the intermediate strips can expediently can be applied to the underside of the tape.

Below are more specifically inventive Means describedcca, which pressurized the strips on the Press on the glass sheet if it makes a horizontal or vertical movement, as well as two-channel means of supply and guiding the strip close to the glass panel.

According to a characteristic of the invention Device comprise the means for pressing the

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there are bobbins of tlierniopias tic strips on the glass panel Tongues made of an elastic material, e.g. rubber, which are approximately perpendicular to the direction of movement of the glass sheet, means are provided to counteract these tongues under elastic deformation with the interposition of the strips to be glued to print the glass panel.

These elastic tongues preferably have

in its active section a tapered cross-section, which is bent in the operating position by pressure against the glass panel, between this section and the glass panel the thermoplastic strips lie which correspond to the outline follow the tongues.

According to an advantageous embodiment of the Invention, the device comprises a traverse perpendicular to the direction of movement of the glass sheet, on which the axes of the Spools for dispensing the thermoplastic strips are attached, as well as means for guiding the strips between the spools and the Tongues and a device which, in the operating position, presses the tongues against the glass panel and bends them.

In a preferred embodiment for glass panels with approximately horizontal movement, the guide means comprise gutters attached to the traverse, and the maintenance of the The bent state of the tongues takes place by means of a pivotable shaft on which holders for these tongues are attached are.

The strips unwinding from the coils are then guided through the grooves up to the vicinity of the glass panel and pressed against it by the tongues be held in a bent state on the glass panel by the appropriate angular position of the shaft of their holder

In a preferred embodiment for about

Vertically displaceable glass panels encompass the guide means Tubes called guide tubes, which are inclined on the traverse in a downward direction in the direction of the glass panel are attached. Air is blown into the guide tubes in the direction of advance of the strip within the same. The tongues are at the end of the egg tubes or on these ends attached to sliding sleeves. The traverse on which the spool

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len and the roller blinds are attached, is carried by wagons, which are movable on tracks that go down very much in the direction of the glass panel.

The strips that are unwound from the coils are then passed through the guide tubes up to the vicinity of the glass sheet guided and then pressed against them by the tongues. The tongues are bent through on the glass panel the guide tubes held, which transferred to them the thrust of the traverse-supporting car, which by their own weight driven on the inclined raceways in the direction of the glass panel will.

Experience has shown that the combination of elastic tongues and the means for pressing them in the bent state to the glass panel regardless of the irregularities of the surface of the glass panel and itself at high temperatures of the same the hot bonding of the plastic Allows stripes under very favorable conditions.

Several exemplary embodiments of the above devices are described below.

In the embodiment of FIGS. 4 to 13, the

Device for gluing the thermoplastic strips 2 on a horizontally moving glass sheet 11, a horizontal one to which Direction of movement F of the panel 11 vertical traverse 102, which one above the panel on one on the floor 104 of the workshop stationary frame 103 forms a fixed bridge (Pig.7).

According to the invention, the traverse 102 carries the

Holder 105 of the axles of the bobbins 14 for dispensing the heat-sealable Strip 2, the holders 108 of the channels 109 for guiding the strips 2 and the bearings 111 in a direction perpendicular to the F direction horizontal shaft 112. On the shaft 112 are holders 113 pushed on, which are attached to the shaft, and on which sockets 114 for the tongues 115 made of an elastic Material for pressing the strips 2 onto the panel 11 is attached are.

These parts are described in detail below.

The coils 14 are in two series (Fig. 7) divided, which are arranged one behind the other on the holders 105

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net, the coils 14 of one series alternating with those of the other. The holders 105 are on the side of the traverse 102 slidable and fixed in position by screws 106 (Fig. 7). This spool 14 has four rollers 116 (Figs. 5 and 6) on, which are arranged on their axis side by side and each carry a winding of a strip 2, the end of the Winding a roll 116 with the beginning of the winding at the Processing next role connected iat.

The grooves 109 are at the top of their holders 108 (FIGS. 12 and 13) by means of screws parallel to the direction F. 117 attached, which allow their pivoting. The holders 108 are laterally displaceable on the traverse 102.

The shaft 112 is (Fig. 4) with a crank

123 provided for their pivoting. The holder carried by her 113 are by flat rails parallel to the shaft 112

124 (Figs. 8 and 9) connected in which with wing nuts 126 provided screws 125 are attached. The sockets 114 of the tongues 115 are provided with tabs 127 which have a hat 128 for receiving the shaft of the screw 125 perpendicular to the shaft 112. The tongues 115 are divided into two series arranged one behind the other, the tongues of one series alternate with those of the others and overlap the ends of the sewing tongues in the transverse direction.

The tongues 115 are preferably made of natural material or artificial rubber with the following parameters:

Shore hardness ■ 66 * 5

Density '1.36

Strength 240 kg / cm

Elongation 480 lbs.

The tongues 115 have in their section which is adjacent to the end coming into contact with the glass sheet 11 is a tapered cross section (Fig. 10) and e.g. B. for a special design, the following dimensions:

Thickness: 8mm

Total length: 120 mm

Length of the beveled section j 35 mm.

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This device works as follows: -

The hot-melt adhesive tape coming from the coils 14

Ren strips 2 are led to the glass sheet 11 through the channels 109 at the desired location, thanks to the adjustment which can be given to the channels 109 by turning about their fastening screws 117. The strips 2 are then pressed against the T _a fel 11 through the tongues 115 whose elastic "deformation and Andruckung determined on the board 11 by the position of the fittings 114 on the rails 124 and by the set by the crank 123 angular position of the shaft 112 In the particular above embodiment, an appropriate operating position of the tongues 115 corresponds to a distance D of the rear end of the tongue 115 from the panel 11 (pig. 11) which is 20 mm smaller than the length L of the tongue (FIG. 10).

The advantages of this device are as follows:

The distribution of the coils 14 on two series arranged one behind the other is made possible on the cross member 102 to attach a large number of coils 14 j

the attachment of four rollers 116 side by side on the axis of a reel 14 enables the manufacture of a continuous roll of great length with a limited one Outer diameter} -

- Since the holders 105 and 108 on the side of the

Traverse 102 is displaceable and the channels 109 are pivotable about their screws 117 »the strips 2 can be attached to any desired Place on the panel 11;

- The displacement of the fits 114 on the

Rails 124 and the angular position of the shaft 112 given by the crank 123 make it possible to regulate the elastic Deformation of the tongues 115 in the operating position and thus the Pressure with which they print the strips 2 against the board 11;

- thanks to the distribution of the tabs 115 on two successively arranged series, wherein a tongue engages over the ends of neighboring tongues, can be coated 11 with the tongues 115, the entire width of the T _a fel.

When running the Pig. 14 to 17 owns

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the device, which for one is perpendicular in the direction moving glass panel 11 is set up, a frame 32 resting on the floor of the workshop. to the table 11 perpendicular planes running tracks 33 on which carriage 34 run with two wheels 35, which one to the table 11 carry parallel horizontal traverse 36. On this traverse 36 are the axes of the coils 14 supporting arms 37 and 14 in perpendicular planes perpendicular to the panel 11 Pipes 38 for guiding the hot-melt adhesive strips 2 attached. These tubes 38, called guide tubes, are at their table 11 adjacent end with an adjustable telescopic sleeve 41 is provided on which the tongue 42 made of an elastic material for pressing the strip 2 onto the panel 11 is attached is.

These parts are detailed below

Provided that they differ from those of the previous discussion described for a horizontally movable glass panel.

With respect to the panel 1, the tracks 33 have a rear horizontal part 43, a front one obliquely against the panel 11 downward part 44, a rear fixed stop 45? a front adjustable stop 46 and a rear groove 47 for holding the rear wheel 35 of the Car 34.

The guide tubes 38 are attached to the cross member 36 by laterally displaceable hooks held by pressure screws 49 48 hung.

for each position of the carriage 34 in which the wheels 35 are completely on the front part 44 of the running tracks 33 rest, the guide tubes 38 form an obtuse angle with the part of the panel 11 lying in front of the tongues 42. The guide tubes 38 are internally covered with a coating 39 made of a material Coated with a low coefficient of friction, e.g. Bakelite, which has an inner rectangular cross-section, its width is slightly larger than that of strip 2. At the rear end the guide tube 38 opens a nozzle 51 for blowing in air, which is carried by the cross member 36 and in turn by a tap (not shown) with an adjustable opening

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connected to a compressed air source connected pipeline 52 is. The sleeve 41 also carries an additional tongue 53 made of an elastic material, the tip of which is in the operating position the tongue 42 is near the panel 11.

The position of the car 34 on the front

Part 44 of the raceways 33 is determined by the reaction of the tongues 42, which by the thrust of the guide tubes 38 of an elastic Deformation on the panel 11 are exposed.

The dimensions of the tongues 42 are expediently as follows:

Thickness: 8mm

Total length: 100 mm

Length of the beveled part: 20 mm. An execution of the 3? Ig. 14 to 17 shown Type with fifteen guide tubes appropriately has the following parameters:

Moving part weight

without the guide tubes. : 30 kg

Total weight of the 15 guide tubes: 48 kg

Total weight of the moving assembly: 78 kg

Angle between the horizontal and the front part 44 of the track 33: 10 °.

The mode of operation of this device is as follows: When the carriages 34 are withdrawn so far that their rear wheels 35 are in the grooves 47, the strips 2 are inserted into the rear opening of the guide tubes 38. The trolleys 34 are then brought onto the inclined part 44, where their position is determined by the reaction of the tongues 42 which balance the thrust exerted by the mobile assembly formed by the trolleys 34 and the traverse 36 provided with all their equipment. Air is then blown into the guide tubes 38 through the nozzles 51. The temperature of this air is suitably between 40 and 5O ⁰ C, a thermal shock at the / panel to avoid 11, and its pressure is at start suitably between 0 and 6 bar with a mean value of the order of 2 bar. The end of the

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Strip 2 is thrown against board 11 through the air. The additional tongue 53 prevents it from falling into the cooling gallery (not shown) of the panel 11, and forms a screen against the rise of warmer ones coming from this gallery Air »The strip 2 then sticks to the board 11. It is cooled on this by the air flow and from the board under the Tongue 42 taken, which presses him. After tempering, the continuity of the development of the strips 2 is ensured by the Movement of the panel 11 is generated. The air should then in general only cause the entrainment »and in the steady state of work its pressure is appropriately set between 0 and 0.5 ^ ar.

The advantages of this "device are as follows:

- The strips 2 are guided through the guide tubes 38 exactly as far as the vicinity of the panel 11.

- When you touch the board 11, the strips are through Ä.en. Airflow cooled so that they are not brought to too high a temperature, which could cause their destruction.

- The pressure of the blown into the guide tubes 38 Air is regulated so that it corresponds to the conditions (e.g. temperature) under which the panel 11 arrives.

- The thrust exerted on the tongues 42 is

soft, as it extends in the direction of the inclined part 44 of the raceways 33 is the acting component of the weight of the movable assembly.

- In the event of a malfunction, the

entire movable arrangement on the rear part 43 of the raceways 33 must be withdrawn in order to prevent their damage, in particular if the panel 11 breaks.

The embodiment shown in Figs

is a modification of that described above for a horizontally movable panel 11. It has a trough 109 with a Device for driving a hanging down from a spool 14 Stripes 2. When describing these are the execution the same reference numerals as in the first are used for corresponding parts.

The gutter 109 rests by one with a 209825/0694

0 1 Is 7 C C 7

Pressure screw 62 provided holder 61 on the not shown Traverse 102. It carries the holder 105 of the reels 14 pushed onto the axis 63. The base of the holder 114 of the tongues 115 is pivotable on a horizontal axis 64 which is perpendicular to the direction of movement of the glass panel 11 and is provided with an operating lever 65. The channel 109 contains two horizontal parallel rollers 66, 67, which are on both sides of the passage of the strip 2 between the reels 14 and the panel 11, and their axes perpendicular to the direction P are. The axis 68 of the roller 66 is rotatably mounted on the channel 109, while the axis 69 of the roller 67 is fixed to the Core 71 of an electromagnet 72 is connected. When the elec-

not
tromagnet 72 / is excited, the rollers 66 and 67 are spread apart while they are in contact with each other when it is excited. A crossed belt 73 connects the pulley to a drive pulley 74, the axis of which is carried by the chute 109. The roller 74 is parallel to the roller 66 and is in contact with the board 11. The channel 109 also carries the pivot axis 75, parallel to the axes 68 and 69, of the lever 76, which carries a button 77 at its end adjacent to the reels 14 for scanning the diameter of the reel of a reel 14 and a switch 78 at its other end. The channel 109 also carries a stop 79 for switching on the switch 78. This comes into contact with the stop 79 in the position of the button 77, which corresponds to the inner diameter of the roll of a strip 2 on a spool 14. A control box 81 is connected by conductors 82 to the excitation winding of electromagnet 72, by conductors 83 to the terminals of switch 78 and by conductors 84 to the terminals of a plug 85. The electromagnet 72 can be arbitrarily the closure dureh of the switch 78 and are energized by printing on an attached to the box 81 push button 86 by the transmitted of the conductors 84 stream, said actuated by the push button 86 switches the K _a least 81 parallel to the Switch 78 is switched. The box 81 also contains a delay device, not shown, which maintains temporary contact between the rollers 66 and 67.

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The working method is as follows: As long as a! Part of the winding of the strip 2 is present on the spool 14, with which the button 77 in Contact is made, the electromagnet 72 is not energized. The rollers 66, 67 remain spread apart. On arrival the end of the winding on the reel 14 in question, the switch 78 comes into contact with the stop 79, which is his Closure effected. The circuit is then closed between the electromagnet 72 and the plug 85, and the roller 67 comes into contact with roller 66, thereby exerting pressure on the strip hanging down from another reel 14 " 2 exercises. Since the roller 66 is constantly by the belt 73 of the with the glass sheet 11 in contact roller 74 driven is, the strip 2 gripped between the rollers 66 and 67 is drawn towards the panel 11. The delay device stops the contact of the rollers 66 and 67 upright until the strip 2 comes into contact with the board 11 and on this sticks. The push button 86 allows the rollers 66 and 67 to be contacted and thus the drive between the two Rolls of hanging strip 2 to be produced at will regardless of the action of the button 77.

This device has the advantage that

the winding of a bobbin 14 automatically causes the winding to come to an end a neighboring coil is replaced, this replacement also being carried out if desired at any point in time during processing can be.

The embodiment shown in Fig. 20 is

a modification of the above for the vertically movable glass panel 11 described. Corresponding parts are given the same reference numerals in both versions.

.The arms 37 carrying coils 14 are provided Traverse 36 is attached to feet (not shown) that run with rollers on guide rails with the hooks 48 the guide tubes 38 provided with air blowing nozzles 51 are suspended.

The frame 32 is known per se

Have two coaxial axes 91 carrying a horizontal angle iron 92 and parallel to the glass plate 11 on one

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Axis 91 is a determining the angular position of the angle iron 92 Lever 93 attached. There are bars on the angle iron

94 arranged, which carry horizontal rollers 95, the axes of which are parallel to the panel 11, and which are in the operating position be in contact with this.

According to the invention, angles 96 on the wind

iron 92 attached. They carry one parallel to the table 11 horizontal shaft 97 with a crank 98 for its angle adjustment. On this shaft 97 the fits are elastic Tongues 42 for pressing the hot-melt adhesive strips 2 onto the board 11 are attached. Above the tongues 42 is located a cutting device which in particular has a cross member 21 which is provided with a scribing tool 23 movable carriage 22 carries. The traverse 21 is in on In a known manner, a translational movement is imparted by the glass sheet 11 during the duration of the scratching.

The way it works is as follows: The position of the traverse on the rails

36 is adjusted so that the end of the guide tubes 38 is at the desired distance from the panel 11. The lever 93 is brought into the position in which the rollers

95 come into contact with the panel 11, whereupon the crank 98 the shaft 97 is rotated to give the tongues 42 the desired elastic deformation on the panel 11. The way of working then corresponds to that described for the first embodiment for a vertically displaceable glass panel 11, the panel 11 is also held by the rollers 95 in this embodiment.

The advantages of this design are as follows:

- Possibility of separate adjustment of the

Rollers 95, the tongues 42 and the guide tube 38 with respect to the Plate 11.

- The panel 11 is held by the rollers 95, causing dangerous vibrations of the same when breaking prevented after scratching.

- In the event of a malfunction, in particular

at eibem ^B of the panel 11 can smell the entire assembly to be withdrawn very quickly, namely the cross member 36 'by rewind

209 8 2 5/069 4

pull on their rails and the rollers 95 and the tongues 42 by operating the lever 93.

In the embodiment shown in FIGS. 21 and 22 for vertically displaceable glass panels 11, the Device caterpillar pairs 131, 135 with endless belts 132, 136, which the hot-melt strips 2 in the vicinity of the board 1.1 and glue them to them under pressure.

The scheme of this device is in Pig. 21 shown.

The one with a front roller 133 and

a rear roller 134 provided endless belt 132 running lower caterpillar 131 carries the upper caterpillar 135 with the over one front roller 137 and a rear roller 138 running endless belt 136. The axes of the four rollers 133, 134, 137, 138 are horizontally and parallel to the glass panel 11. The belt 136 rests on the belt 132 with the interposition of that of the Coil 14 of the coming hot-melt adhesive strip 2. The rollers 137 and. 138 are closer to table 11 than rollers 133 and 134, the belt 136 being in contact with the panel 11 in front of the roller 137.

One embodiment of this device is

shown in FIG. A frame, not shown, carries arms 139 with slots 141, 142 in which the axes 143 of the rollers 133, 134 slide. The axle 143 is pressed against the panel 11 by a spring 145 which is supported on the shaft of a bolt 146 fastened to the arms 139. The upper caterpillar 135 is built into an independent frame 147, which has two U-irons 148 provided with seat strands 151, 152, in which the axes 153, 154 of the rollers 137, 138 slide. The frame 147 has a device with adjusting screw 155 for adjusting the height of the axis 153 and a device with adjusting screw 156 for adjusting the distance between the axes 153 and 154. The frame 147 is arranged between the arms 139, the upper caterpillar 135 on the lower caterpillar 131 with its belt 136, which rests on the belt 132 and on the front roller 133, which causes a certain bending of this belt, which is visible in FIG.

The style is as follows:

209825/0694

The front roller 137 and thus the upper caterpillar 135 are against the panel 11 by the under the effect of the spring 145 standing front roller 133 is printed. The one from the Roller 137 on the panel 11, the stronger the more the spring 145 is compressed, i.e. the more the Arms 139 of panel 11 are approached. As a result, the position of the arms 129 on the frame, not shown, is set so that that the hell 137 the desired pressure on the board 11 exercises. The one printed by roll 137 against board 11 Belt 136 is taken along by this and in turn drives strap 132 on which it rests. The strip 2 is at the back brought on the caterpillars 131 and 135 between the belts 132 and 136. He is led by them to the vicinity of panel 11, adheres to this and is carried along by it under the belt 136.

This sticks under the pressure of the roller 137 the strip 2 under pressure on the board 11.

The advantage of this embodiment is that the strip 2 is brought close by purely mechanical means the table is brought, these means having a simple, economical and not very sensitive structure.

The invention can of course be modified.

So can when running for horizontal sliding glass panels 11, several traverses 102 are available be, which are attached to the frame IO3 and the Holder 105 of the spool 14. or the holders 108 of the channels 109 or the axis 112 of the holder 113 of the tongues 115.

The sockets 114 of the tongues 115 can

their holders 113 displaceable with the help of worm gears be.

In the version for vertically sliding glass panels · «. 11, the arms carrying the coils 14 can be used 37 may be attached to an auxiliary traverse that is firmly connected to the traverse 36 attached to the carriage 34.

The guide tubes 38 can be arranged in a plurality of rows one above the other, the of the different guide tube cleaners 38 carried tongues 42 each other encroach

209825/0694

Claims (54)

Claims 1.) Block from a stack of glass sheets, which are separated from each other by intermediate strips of a thermoplastic Material are separated, which adhere with one side to the "adjacent glass panel, characterized in that each Strip (2) is glued with its "two sides to the" adjacent glass panels (1a, 1b) by hot glue, and that the Adhesion by hot-glueing one side of the strip (2) to the adjacent glass panel (1b) is considerably stronger than the adhesion the other side is on the other panel (1a). 2.) The block of claim 1, characterized in that the stronger H _a ften the intermediate strip (2) to the block ACCORDING a repetitive array is prepared on all glass sheets (1). 3.) Block according to claim 1 or 2, characterized in that that the intermediate strip (2) is formed by a polyethylene skin. 4.) Block according to claim 3, characterized in that that the polyethylene used has a low density (high-pressure polyethylene) and a density between 1.7 and 2.5 Degree owns. 5.) Block according to claim 1 or 2, characterized in that the intermediate strips (2) through a polyvinyl chloride membrane are formed, both sides of which are smooth. 6.) Block according to one of claims 1 to 5, characterized in that the Zwisehen strips (2) of one Edge to the other of each glass panel (1). 7.) Block according to one of claims 1 to 6, characterized in that the width of the intermediate strips (2) is approximately between 3 and 30 mm. 8.) Block according to one of claims 1 to 7, characterized in that the thickness of the intermediate strips (2) is slightly larger than that of any punctiform defects on the glass surface and is at least 0.1 mm. 9.) Block according to one of claims 1 to 8, characterized in that the distance between two successive Zwisehen strips (2) is smaller than the smallest for the cutting of the panels (1) is the intended width. 209825 / 069A 10.) Method of making a block according to any one of claims 1 to 9 starting from one continuous produced and moved glass ribbon, which is scored and then broken, whereupon the panels formed in this way under Attachment of intermediate strips are stacked, characterized in that the hot-melt adhesive of the intermediate strips (2) on the glass ribbon (11) before breaking off, whereupon the ribbon is divided into separate panels, each of which has intermediate strips (2) carries, whereupon the thus equipped glass panels (1) are stacked. 11.) The method according to claim 10, characterized in that that the intermediate strips (2) are continuously under pressure on the glass ribbon (11) as it moves past to be printed. 12.) The method of claim 11, wherein the glass ribbon from a cooling gallery comes, characterized in that the intermediate strip (2) are printed on this B _a nd (11) when this, sufficient for its heat sealing temperature has. 13.) The method according to claim 12, characterized in that the temperature of the glass ribbon (11) at the point of pressing the intermediate strips (2) is approximately between 50 ⁰ C and 150 ⁰ C, and preferably between 70 ° and 100 ⁰ O, if the intermediate strips (2) are made of polyethylene. 14.) The method according to claim 13, characterized in that that the pressure for pressing the intermediate strips (2) against the glass ribbon is between 5 and 300 g / cm and preferably is between 20 and 50 g / cm. 15.) Method according to one of claims 10 to 14, characterized in that the intermediate strips (2) are applied to the glass ribbon (11) before it is torn will. 16.) The method according to claim 15 »in which the production of a horizontally displaceable glass ribbon takes place, characterized in that the intermediate strips (2) be applied to the top of the tape, and that on this side in one to the direction of movement of the tape perpendicular sense carried out at the same time 209825/0694 cut through the strips (2). 17.) The method according to claim 15, characterized in that that the intermediate strips (2) are applied to the surface of the belt (11) which is opposite to at which the scribing takes place. 18.) Method according to one of claims 10 to 17, characterized in that the flexible, hot-melt adhesive strip-shaped material (2) attached to the glass sheet (1) is removed from a coil (14), and that the lead this material is generated by the continuous movement of the glass sheet (11) itself. 19.) Device for making the block according to one of claims 1 to 9 or for carrying out a method according to one of claims 10 to 18, characterized in that that they opposite a requester (15) for the to be filled Glass sheet (11) has an arrangement of coils (14) for outputting the intermediate strips (2) and means which the of press the strip (2) coming from the coils (14) under pressure onto the surface of the glass panel (11). 20.) Device according to claim 19 for one Plant for the continuous production of a glass ribbon, characterized in that it is between the exit of the cooling gallery (12) and the devices for cutting (21, 22, 23) and breaking (25) of the formed glass ribbon (11) is arranged. 21.) Device according to claim 19, characterized characterized in that the means for pressing the from the output spools (14) coming thermoplastic strips (2) on the glass panel (11) tongues (15) made of an elastic material, e.g. B. rubber, which are approximately perpendicular to the direction of movement (F) of the glass panel (11), and that this means so are designed that they these tongues (115) under elastic deformation with the interposition of the strips to be glued (2) press against the glass panel (11). 22.) Device according to claim 21, characterized characterized in that the tongues (115) are distributed over several parallel series, the tongues of a series alternate with those of other series and overlap the ends of the neighboring tongues. 20982.5 / 0694 23.) Device according to claim 21 or 22, characterized in that the elastic material of the tongues (115) has approximately the following properties: Shore hardness: 66 - 5 Density: 1.36 Strength: 240 kg / cm Elongation: $ 4-80. 24.) Device according to one of the claims 21 to 23, characterized in that the tongues (115) in adjacent to their end coming into contact with the glass sheet Section have a bevelled cross-section, and that the means for pressing the tongues against the glass panel keep this in the operating position in a bent state. 25.) Device according to one of claims to 24, characterized by means for guiding the strips (2) between the output spools (14) and the tongues (115). 26.) Device according to one of the claims 21 to 25, characterized in that the axes of the delivery coils (14) are mounted in holders (105) which are perpendicular to the direction of advance of the glass panels (11) Traverse (102) are attached. 27.) Device according to claim 26, characterized characterized in that the holder of the axes of the bobbins (14) on the traverse (102) are laterally displaceable. 28.) Device according to claim 26 or 27, characterized in that the coils (14) on several one behind the other arranged series are distributed, with the coils of a series alternating with those of other series. 29.) Device according to one of the claims 21 to 28, characterized in that the bobbins (14) have rollers (116) arranged next to one another on the bobbin axis, each of which carries a roll of a heat-sealable strip, the end of the roll carrying a roll (116) with it the beginning of the lap which is connected to the next roll during unwinding « 30.) Device according to one of the claims 26 to 29 for glass panels with an approximately horizontal feed, characterized in that the! Traverse (102) above the glass 209825/0694 panel (11) is arranged, and that the means for guiding the Strip (2) between the output reels (14) and the tongues (115) on the traverse (102) attached grooves (109). 31.) Device according to claim 30, characterized characterized in that the channels (109) are adjustable about axes (117) parallel to the feed direction (P) of the glass sheet (11) and are attached to holders (108) which can be displaced laterally on the traverse (102). 32.) Device according to claim 30 or 31, characterized in that the means for pressing the tongues (115) against the glass sheet (11) one to the advancing direction (P) of the glass panel (11) vertical, rotatable on the cross member (102) supported shaft (112) and firmly connected to this holder (113), on which the ** # fits (IH) of the tongues (115) are attached, with means for adjusting the angular position the shaft (112) are provided. 33.) Device according to claim 32, characterized characterized in that the fits (114) of the tongues (115) on their holders (113, 124) perpendicular to the shaft carrying them (112) are movable. 34.) Device according to one of the claims 30 to 33, characterized in that the grooves (109) with a device for driving the end of a spool hanging down hot-melt adhesive strips are provided, which two are arranged on both sides of the passage of the strip (2) Rollers (66, 67) with parallel axes, one of which is fixed and the other of which is movable, and means (73, 76) for the Rotary drive of the roller (66) with a fixed axis by the movement of the glass sheet (11) and means (71, 72) for pressing the two Comprising rollers (66, 67) on one another. 35 ») Device according to claim 34, characterized by an electromagnet (72) on whose core (71) the axis of the movable roller (67) is fixed, the two rollers (66, 67) being pressed against each other when the Electromagnet is energized, a button (77) for scanning the diameter of the roll on a spool (14), one fixed with switch (78) connected to the button to interrupt the excitation current of the electromagnet (72), and one on the gutter 209825 / 0694- (109) attached stop (79) to close the switch (78), which with the stop (79) in the corresponding to the inner diameter of the winding of the strip (2) on the spool (14) Position of the vice (77) comes into contact. 36,) Device according to claim 34 or 35, characterized by a delay device for temporary Maintaining contact between the two roles » 37.) Device according to one of the claims 21 to 29 for glass panels with an approximately vertical feed, characterized in that the means for guiding the strips (2) between the dispensing reels (14) and the tongues (42) comprise tubes (38) called guide tubes. 38.) Device according to claim 37, characterized characterized in that the guide tubes (38) have an inner coating (39) made of a material with a low coefficient of friction, e.g. Bakelite. 39.) Device according to claim 37 or 38 _r characterized in that the guide tubes (38) have an inner rectangular cross-section, the width of which is slightly greater than that of the hot-melt adhesive strip (2). 40.) Device according to one of the claims 37 to 39 »characterized by means (51, 52) for injection of air into the guide tubes (38) i & the direction of movement of the Strip (2) inside the guide scope. 41.) Device according to one of claims 37 to 40, characterized in that the tongues (42) on the The end of the guide tubes (38) are attached, 42.) Device according to one of claims 37 to 40, characterized in that the guide tubes (38) the side of the glass panel (11) have a telescopic sleeve (41) with adjustable position. 43.) Device according to claim 42, characterized characterized in that the tongue (42) is attached to the sleeve (41) is. 44.) Device according to one of the claims 37 to 43, characterized by a frame (32) which is arranged in planes perpendicular to the glass panel (11). 209825/0694 nete raceways (33) carries on these raceways (33) running, carriages connected to the guide tubes (38) and means for driving the carriages (34) towards the glass sheet (11). 45.) Device according to claim 44, characterized in that the raceways (33) with respect to the Glass sheet (11) have a rear horizontal portion (43) and a front downward portion (44). 46.) Device according to claim 44 or 45 » characterized in that the raceways (33) front and have rear stops (46 or 45) for limiting the stroke of the carriages (34), the position of the front stop (46) is adjustable. 47.) Device according to one of claims to 46, characterized by a plurality of carriages (34) which through a cross member (36) parallel to the glass sheet (11), to which the guide tubes (38) are hooked, are connected. 48.) Device according to claim 47, characterized in that the holder (48) of the guide tubes (38) the traverse (36) can be moved laterally. 49 ·) Device according to claim 47 or 48, characterized in that the guide tubes (38) form an obtuse angle with the part of the glass sheet (11) in front of them the position of the carriages (34) in which they are completely on the front section (44) of the tracks (33) are located. . 50.) Device according to one of the claims 47 to 49 »characterized in that the position of the carriages (34) on the front section (44) of the tracks (43) is determined by the reaction of the pressure tongues (42), which by the thrust of the guide tubes (38) an elastic Deformation on the glass panel (11) are subject to. 51.) Device according to one of claims 41 to 50, characterized in that the Lertrohre (38) carry a ^ additional tongue (53) made of an elastic material, the end of which is in the operating position of the pressure tongue in near the glass panel (11). 52.) Device according to one of the claims 209825/0694 21 to 29 and 37 to 50 for glass panels with approximately perpendicular feed, with a first shaft which is perpendicular to the feed direction of the glass sheet (11) and rotatably mounted on a frame (32) (91), means (93) for adjusting their angular position, holders (96) attached to this shaft, which should carry (95), whose axes are parallel to the shaft, characterized by a second shaft (97) parallel to the first shaft (91) » which is rotatably mounted in holders (96) fixedly connected to the first shaft (91), with means (98) for adjustment the angular position of the second shaft (97) are provided, the sockets of the pressure tongues (42) in a rotationally fixed manner with the second Shaft (97) are connected, wherein in the operating position of the device, the rollers (95) and the tongues (42) simultaneously are in contact with the glass panel (11). 53.) Device according to claim 19 for glass panels with approximately perpendicular feed, characterized in that that the means for pressing the strips (2) coming from the output reels (14) onto the glass sheet (11) caterpillar pairs (131, 135) with endless belts (132, 136), each pair having a lower track (131) and an upper track (135), its belt (136) on that of the lower caterpillar (132) with the interposition of the strip (2) to be glued rests, the axes of the rollers (133, 134, 137, 138) of the caterpillars (131, 135) are approximately perpendicular to the feed direction (P) of the glass sheet (11), means are provided which the belt (136) of the upper caterpillar (135) with the interposition of the to print adhesive strip (2) against the glass panel (11). 54.) Device according to claim 53, characterized by a frame which is provided with slots (141, 142) provided arms (139) in which the axes (143, 144) the rollers (133, 134) of the lower caterpillar (131) slide, which are supported by an elastic system on the arms (139) (145) is advanced against the glass panel ((1), wherein the upper caterpillar (135) is stored in an independent frame (147) is, its front and rear rollers (137 and 138 respectively) of the glass panel (11) closer than the rollers (133, 134) of the lower one Caterpillar (131) lie. 20 9 82 5/06 9 4