Classifications

• • C—CHEMISTRY; METALLURGY
  • C03—GLASS; MINERAL OR SLAG WOOL
  • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
  • C03B33/00—Severing cooled glass
  • C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
  • C03B33/0207—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet being in a substantially vertical plane

Definitions

• the invention relates to a device for dividing glass plates according to the preamble of claim 1.
• the invention further relates to a method according to the preamble of claim 12.
• Glass plate blanks which are divided into blanks of the desired size, are usually large. They typically have a length of 600 cm and a width of 321 cm. The workstations must therefore be designed accordingly, but this has a disadvantageous effect on the space requirements.
• the glass plates are usually stored in a vertical position, so that a suitable loading device is required to load the known cutting and breaking systems, which enables the glass plate to be rotated horizontally. This makes rapid loading difficult. Rotating the glass plates also requires careful handling to avoid damage.
• a turning station is provided along a horizontally running cutting line, with which the glass plate part can be pivoted through 90 degrees, so that the cutting line is vertical for the breaking process is aligned.
• careful handling of the glass plate part is necessary, which is particularly difficult with large glass plate parts. It is also disadvantageous that an additional operation and thus additional processing time is necessary and the glass plate part has to be realigned after the pivoting.
• the present invention is based on the object of
• this object is achieved by a device according to claim 1 or by a method according to the independent method claim.
• glass plates is to be understood as meaning glass-containing plates in general, such as simple glass panes, coated glass panes, laminated glass panes (glass panes with a plastic film in between), multilayer laminated glass panes, laminated safety glass panes, etc.
• FIG. 2 is an enlarged view of the cutting and breaking station and a further breaking station according to FIG. 1,
• FIG. 3 shows a section along the lower part of the cutting and breaking station according to FIG. 2,
• FIGS. 2 and 3 shows a section along the lower part of the crushing station according to FIGS. 2 and
• Fig. 5 shows an example of a glass plate provided with scratch lines.
• the system for processing glass plates shown in FIG. 1 comprises several stations: a feed station 20, a cutting and breaking station 30, a further breaking station 70 and a post-processing station 90.
• the system is designed as a so-called traverse machine, ie the glass plate is processed in strips (in traverses) in the y-direction. This brings a high Flexibility in the processing of various types of glass plates.
• the feed station 20 has a first contact surface 21 which supports the glass plate 10 to be processed.
• the first contact surface 21 is oriented essentially vertically, so that the angle (hereinafter referred to as alpha) between the first contact surface 21 and the vertical is preferably in the range from 0 to 10 degrees.
• the glass plates are usually essentially perpendicular z. B. stored on glass racks, the tilt angle is about 5 to 7 degrees.
• the angle alpha is chosen similar to the angle of inclination of the mounted glass plates, so that the
• Feeding station 20 the glass plates only have to be shifted translationally and do not need to be tilted.
• the first contact surface 21 can be an air cushion wall or
• Roll wall can be formed, over which the glass plate 10 to be processed can slide.
• a first conveyor belt 22 is provided, which leads to the cutting and breaking station 30 in the horizontal direction (hereinafter also called the y direction).
• the glass plate 10 When the glass plate 10 is conveyed, it lies with one of its edges 11 on the conveyor belt 22 and slides with its rear side over the rollers or the air cushion of the first contact surface 21, while the front side of the
• Glass plate 10 is freely accessible from the front.
• a first vertical suction bar 23 is attached to the right end of the feed station 20.
• the suction bar 23 is equipped along a substantially vertical line with a plurality of suction cups, which are applied from behind to the back of the glass plate to be processed and can be detachably connected to it by means of negative pressure.
• the cutting and breaking station 30 following the feed station 20 has a second contact surface 31 which is in alignment with the first contact surface 21.
• a second conveyor belt 32 is provided at the lower end of the cutting and breaking station 30.
• a cutting bridge 33 which can be moved in the y direction is positioned on the front of the second contact surface 31.
• This is provided with a cutting tool (cutting wheel or laser) which can be moved in the x direction and can additionally have an axis of rotation for rotating the cutting tool.
• the front of the glass plate can be provided with scoring lines, along which it then goes into the individual parts of the desired one
• the cutting bridge 33 can also be equipped with further tools for processing the glass plate, which can preferably be moved in the x direction and can additionally have an axis of rotation. So z. B. conceivable to provide a grinding device to z. B. to remove the layer of a coated glass plate at certain points, or a drilling device to be able to provide the glass plate with a hole at certain points.
• the cutting bridge is equipped with a pair of pliers 34 a glass plate can be gripped on its right edge and can be positioned exactly by displacing the cutting bridge 33 in the y direction.
• the second contact surface 31 of the cutting and breaking station 30 is provided with a first horizontal suction bar 39 and preferably with a second horizontal suction bar 40. Similar to the first vertical suction bar 23, the two suction bars 39 and 40 are provided with a multiplicity of suction devices in order to be able to detachably connect them to the glass plate.
• a first vertical break bar 41 is attached between the first vertical suction bar 23 and the left end of the two horizontal suction bars 39 and 40. This can be attached from behind to the back of the glass plate, 'to this (so-called "X-cut") along a vertical score line to break.
• a first horizontal break bar 42 is attached between the two horizontal suction bars 39 and 40, with which the glass plate or a part thereof can be broken along a horizontal score line (so-called "Y-cut").
• the first horizontal break bar 42 and the two horizontal suction bars 39 and 40 are mounted so that they can be moved in the x direction in order to be able to break the glass plate or a part thereof along any horizontally running scoring line.
• the two horizontal suction strips 39 and 40 also serve to hold the glass plate or the upper part of the divided glass plate and to lower it.
• the second contact surface 31 is provided with a plurality of strips 45 essentially over its entire width. The strips 45 are connected together with the first horizontal crushing bar 42 and with the two horizontal suction strips 39 and 40 on the left and right edge region of the cutting and breaking station 31 on a vertically extending chain 46 and 47 and thus form a kind of roller shutter, which can be moved in the x direction.
• the strips 45 consist of a solid material, for. B. metal, so that the second bearing surface 31 forms a solid wall, which supports the glass plate accordingly. This ensures that the pressure which the cutting tool exerts on the front of the glass plate during cutting is absorbed by the second contact surface 31 and the area of the glass around the scoring lines is not damaged by excessive stresses.
• FIG. 3 shows a section of the lower part of the cutting and breaking station 30.
• the glass plate rests with its rear side on the second contact surface 31. This is oriented essentially vertically, so that the angle alpha between the vertical and the second contact surface is preferably in the range from 0 to 10 degrees.
• the individual strips 45 are articulated on the chains 46 and 47, which are deflected by two rollers 49 and 50 in the lower region of the cutting and breaking station. Similarly, two further rollers (not shown) are provided for deflecting the chains 46 and 47 in the upper region of the second contact surface 31. Furthermore, the strips 45 are covered with a movable support mat 52 which, for. B. consists of a fabric tape, which is preferably coated with plastic. The support mat 52 extends essentially over the entire width of the strips 45, so that the glass plate 12 rests on it when it is scored.
• the first horizontal crushing bar 42 is moved upwards together with the two horizontal suction bars 39 and 40, the bars are continuously deflected around the rollers and appear at the front.
• the respective suction heads 53 on the first horizontal suction bar 39, the suction heads on the second horizontal suction bar 40 and the crushing bar 42 are displaceable transversely to the surface of the glass plate 12 to prevent them from grazing the back 13 of the glass plate 12 during the process.
• a plurality of air nozzles 56 are attached along a horizontal direction.
• air can be blown between the support mat 52 and the glass plate 12. Since the support mat 52 forms an airtight surface, the air flows between the support mat 52 and the glass plate 12 from bottom to top, thus creating an air cushion on which the lower part of the glass plate 12 slides away after transporting to the breaking station 70 after Y-breaking can.
• the further breaking station 70 is provided next to the cutting and breaking station 30.
• a third conveyor belt 72 Aligned with the second conveyor belt 32 is a third conveyor belt 72 at the lower end of the breaking station 70 arranged.
• the crushing station 70 is provided with a fourth conveyor belt 73 which, guided by left and right rails 75 and 76, can be moved in the x direction. Depending on the width of the cut-off part of the glass plate, the fourth conveyor belt 73 is positioned at the appropriate height so that the glass plate can slide over it.
• the breaking station 70 is provided with a third horizontal suction bar 77.
• the suction bar 77 is equipped at its lower end with a counter pressure bar 78 and, as is indicated by the double arrow 79, can be moved along the vertical.
• a second horizontal break bar 80 is attached to the front of the glass plate 15.
• the breaker 77, 78 and 80 is used to break off a strip of the lower edge of the glass plate 15 (the so-called "Y-braid"), if necessary. (Since the glass plate blanks usually have no clean edges, it is necessary to remove the edge strip.)
• the third horizontal suction bar 77 is moved in the x-direction such that the counter-pressure bar 78 comes to lie on the corresponding scoring line of the Y-border.
• the second horizontal crushing beam 80 is then pressed from the front against the front of the glass plate 15, so that the Y braid finally breaks off and, as indicated by the arrow 81, falls down to the rear.
• the second horizontal breaking bar 80 has a wedge-like cross section, the front edge 82 being able to engage as close as possible to the edge 16 of the glass plate 15. This ensures that the Distance between the counter-pressure bar 78 and the front edge 82 of the second horizontal crushing beam 80 is as large as possible and the greatest possible bending moment is achieved during the breaking.
• the third horizontal suction bar 77 holds the glass plate 15 in position and, after the Y-border has been removed, is moved down together with the glass plate 15 so that the newly broken edge on the third conveyor belt 72 comes to rest.
• a further breaking device along the fourth conveyor belt 73 can be provided on the upper edge of the glass plate 15 to break off the Y-border, which is similar to the breaking device 77, 78 and 80 and can be moved in the x direction.
• the breaking station 70 has a second vertical suction bar 84 and third vertical suction bar 85 and a second vertical breaking bar 86 at the end of the third conveyor belt 72.
• this breaking device 84, 85 and 86 makes it possible to remove a strip of the left or right edge of the glass plate (the so-called "X-border").
• a postprocessing station 90 can be provided, as shown in FIG. 1.
• This can e.g. B. include a tilting table to tilt the glass plate for manual processing in the horizontal position.
• the glass plate parts are then placed at the end of the system, for example on glass racks, sorted (manually or automatically) into compartment trolleys, temporarily stored in an intermediate buffer or fed directly to another processing line.
• the glass plate to be processed is z. B. from a glass rack or traver dispenser by means of a loading device of the feed station 20.
• the glass plate is conveyed to the cutting and breaking station 30 and with the tongs
• the first vertical suction bar 23 and the two horizontal suction bars 39 and 40 are applied to the glass plate and hold it in place by means of negative pressure.
• Cutting tool cut optionally, the glass plate can be processed by further work steps before breaking, such as. B. drilling or grinding.
• FIG. 5 shows an example in which the right part 102 of the glass plate 10 (so-called “traver”) is provided with the scratch lines X0, XI, Y0, Yl, Y2, ZI and Z2.
• the various work steps will be explained in more detail with reference to FIG. 5, however this is only one possible example of separating the glass plate. It goes without saying that, depending on the desired subdivision of the glass plate, the various work steps are adapted accordingly.
• the glass plate 10 is broken into two parts 101 and 102 along the X1 line by means of the first vertical breaking bar 41.
• a small space is formed, which is for example in the order of the thickness of the glass plate 10.
• the first horizontal breaking bar 42 is advanced against the crossbar 102, the two horizontal suction bars 39 and 40 holding the crossbar 102 until it finally breaks in two parts 102a and 102b.
• the crossbar 102 is raised slightly before breaking so that the lower edge 103 does not rest on the second conveyor belt 32 and can therefore be moved relatively freely.
• the separation of the lower part 102a from the upper part 102b is assisted by gravity, so that a clean break along the Y1 line results.
• an air cushion is formed with the air nozzle 56 between the support mat 52 and the glass plate 12 generated. This prevents scratches on the glass plate. The flowing air also favors that the glass fragments that occur during the breaking process are blown away.
• the second horizontal suction bar 40 is released from the part 102a so that it slides back onto the second conveyor belt 32. The formation of scratches on the glass plate 12 is avoided because of the air cushion.
• the first horizontal suction bar 39 still holds the upper part 102b in place.
• the lower part 102a is then conveyed to the next crushing station 70, where in the example according to FIG. 5 the Y-border is broken off along the scratch line Y0 by means of the second horizontal crushing bar 80, as has already been described above. That by means of the air nozzle 56 between the
• the support mat 52 and the air cushion produced by the glass plate 12 prevent the lower part 102a from being provided with undesired scratches during the removal.
• Break bar 86 the X-border broken along the scribe line X0 and the remaining part removed via the post-processing station 90 from the system.
• the upper part 102b becomes after the lower part 102a
• Crushing station 70 was transported, lowered onto the second conveyor belt 32 by means of the first horizontal suction bar 39.
• the part 102b is according to 5 along the scribe line Y2 separated into two parts 102c and 102d.
• part 102c according to FIG. 5 is separated into further parts along the scribe lines X0, ZI and Z2.
• part 102d is conveyed to the breaking station and, according to FIG. 5, the X-border is removed by breaking along the scoring line X0.
• the remainder 101 of the glass plate 10 is separated into different parts.
• the cut parts are then fed for further processing or an intermediate storage.
• the crushing devices and suction strips each attack from behind on the back of the glass plate, so that its front remains unaffected. This can reduce the risk that, for. B. the layer is damaged in coated glass panes.
• the vertical arrangement of the system ensures that the weight of the glass plate on the Conveyor belt rests, which thus provides a reference plane for the alignment of the glass plate at each station. There is therefore no need for stops for positioning the glass plate, as are used in known horizontally arranged systems.
• the angle alpha which has the surface opposite the vertical, in the range from 0 to 10 degrees or in the range from 0 to 45 degrees. Choosing a small angle has the advantage described above that the glass plates can be taken over directly from a glass frame or crossbar dispenser without additional tilting. However, even with a larger angle alpha, the advantage is preserved that the system is laterally less extensive than the known systems in which the glass plates are cut horizontally.
• a kind of roller or ball can be used instead of a break bar, which is guided along the scoring line with a certain pressure.
• first horizontal suction bar 39 pliers or a suitable gripping device can be used to hold the upper part of the traverse (part 102b in FIG. 5) laterally or in the upper edge area when breaking. In order to raise the traverse or lower the cut part, the pliers or gripping device can be moved in the x direction. It is also conceivable to omit the second horizontal suction bar 40. Since the glass plate is slightly inclined to the vertical when breaking, its own weight counteracts the pressure of the breaking bar, so that the glass plate does not tip forward.
• the cutting and breaking station 30 as separate stations, so that a glass plate is first scored, for example, at the feed station 20 and then transferred to the station 30 for breaking along the scoring lines. Accordingly, since the second support surface 31 is not required as a fixed wall when cutting, it can be designed similarly to the breaking station 70, so that the scratched glass plate is only supported, for example, at the edges during breaking.

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• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Organic Chemistry (AREA)
• Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
• Laminated Bodies (AREA)
• Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Priority Applications (6)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

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Citations (6)

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• 2002
  • 2002-04-04 EP EP02405267A patent/EP1350769A1/de not_active Withdrawn
• 2003
  • 2003-04-02 WO PCT/CH2003/000218 patent/WO2003084888A1/de not_active Ceased
  • 2003-04-02 EP EP03707994A patent/EP1492734B1/de not_active Expired - Lifetime
  • 2003-04-02 US US10/508,338 patent/US20050103055A1/en not_active Abandoned
  • 2003-04-02 PL PL03372725A patent/PL372725A1/xx not_active Application Discontinuation
  • 2003-04-02 CN CN03806947.4A patent/CN1642868A/zh active Pending
  • 2003-04-02 JP JP2003582092A patent/JP2005527457A/ja not_active Withdrawn
  • 2003-04-02 RU RU2004129322/03A patent/RU2004129322A/ru not_active Application Discontinuation
  • 2003-04-02 BR BR0308981-9A patent/BR0308981A/pt not_active IP Right Cessation
  • 2003-04-02 AU AU2003212182A patent/AU2003212182A1/en not_active Abandoned
  • 2003-04-02 DE DE50303834T patent/DE50303834D1/de not_active Expired - Fee Related
  • 2003-04-02 AT AT03707994T patent/ATE329885T1/de not_active IP Right Cessation

Patent Citations (6)

Non-Patent Citations (1)

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