CN115362136A - Glass plate manufacturing device and manufacturing method - Google Patents
Glass plate manufacturing device and manufacturing method Download PDFInfo
- Publication number
- CN115362136A CN115362136A CN202180025615.8A CN202180025615A CN115362136A CN 115362136 A CN115362136 A CN 115362136A CN 202180025615 A CN202180025615 A CN 202180025615A CN 115362136 A CN115362136 A CN 115362136A
- Authority
- CN
- China
- Prior art keywords
- glass ribbon
- glass
- cutting
- scribing
- dust
- 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.)
- Pending
Links
- 239000011521 glass Substances 0.000 title claims abstract description 155
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 230000007246 mechanism Effects 0.000 claims abstract description 79
- 239000000428 dust Substances 0.000 claims abstract description 69
- 238000005520 cutting process Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims description 13
- 238000005452 bending Methods 0.000 description 11
- 239000000843 powder Substances 0.000 description 10
- 238000005299 abrasion Methods 0.000 description 7
- 230000003028 elevating effect Effects 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 239000006059 cover glass Substances 0.000 description 1
- 238000003280 down draw process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007500 overflow downdraw method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F3/00—Severing by means other than cutting; Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/12—Saw-blades or saw-discs specially adapted for working stone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D7/00—Accessories specially adapted for use with machines or devices of the preceding groups
- B28D7/02—Accessories specially adapted for use with machines or devices of the preceding groups for removing or laying dust, e.g. by spraying liquids; for cooling work
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
- C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
- C03B17/068—Means for providing the drawing force, e.g. traction or draw rollers
-
- 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
-
- 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
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/027—Scoring tool holders; Driving mechanisms therefor
-
- 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
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/033—Apparatus for opening score lines in glass sheets
-
- 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
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/037—Controlling or regulating
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The glass plate manufacturing device is provided with a cutting device (1) for cutting a Glass Ribbon (GR) conveyed downwards in a vertical posture to form a glass plate (GS). The cutting device (1) is provided with a cutting mechanism (5) for cutting the Glass Ribbon (GR), a driving part (6) for driving the cutting mechanism (5), and a dust collecting device (4) for collecting dust generated by the driving part (6).
Description
Technical Field
The present invention relates to an apparatus and a method for manufacturing a glass sheet by cutting a glass ribbon conveyed in a vertical posture.
Background
As is well known, glass plates are widely used as glass substrates for panel displays such as liquid crystal displays and organic EL displays, and cover glasses for smart phones and tablet PCs.
As one of the methods for producing glass sheets, there is a method of cutting a glass ribbon continuously formed by a down-draw method typified by an overflow down-draw method into pieces having a predetermined length and then cutting glass sheets from the glass ribbon.
Patent document 1 discloses an example of an apparatus used in such a production method. The glass plate manufacturing apparatus includes a scoring mechanism that forms a score line on one surface of a glass ribbon while following the lowering of the glass ribbon conveyed downward after forming, and a breaking mechanism that applies bending stress to a portion where the score line is formed while following the lowering of the glass ribbon to break and cut the glass ribbon.
The scoring mechanism is provided with a cutter wheel which is contacted with one surface of the glass ribbon. The cutter wheel is connected to the belt-type driving part. The driving unit includes an endless belt for fixing the cutter wheel, and a driving wheel and a driven wheel for winding the belt.
The scoring mechanism moves downward at the same speed as the glass ribbon conveying speed, and moves the cutter wheel in the width direction of the glass ribbon by the driving part, thereby forming a score line on one surface of the glass ribbon.
The breaking mechanism includes a fulcrum lever that contacts the other surface of the glass ribbon at a portion of the glass ribbon where the score line is formed and serves as a fulcrum for breaking and cutting, and a support device (breaking arm) that supports a portion of the glass ribbon.
The breaking mechanism changes the posture of the supporting device around the contact position of the fulcrum lever and the glass ribbon, and applies bending stress to the glass ribbon, in a state where the fulcrum lever is in contact with the glass ribbon and the glass ribbon is supported by the supporting device.
The manufacturing apparatus cuts out a portion of the glass ribbon supported by the support apparatus as a glass sheet by developing a crack starting from the score line in the thickness direction of the glass ribbon under the action of the bending stress.
Documents of the prior art
Patent literature
Patent document 1: japanese patent laid-open publication No. 2017-114686
Disclosure of Invention
Problems to be solved by the invention
In a conventional manufacturing apparatus, dust may be generated. When dust adheres to the glass ribbon, the quality of the produced glass sheet is degraded. Since the glass ribbon is in a high-temperature state at the time of cutting, dust adhering (welded) to the glass ribbon is difficult to remove even in a subsequent cleaning step of the glass plate. Therefore, the quality of the glass sheet is degraded.
The present invention has been made in view of the above circumstances, and a technical object is to prevent a reduction in quality of a glass sheet.
Means for solving the problems
The present invention is a glass plate manufacturing apparatus for solving the above-described problems, including a cutting device for cutting a glass ribbon conveyed downward in a vertical posture to form a glass plate, wherein the cutting device includes a cutting mechanism for cutting the glass ribbon, a driving unit for driving the cutting mechanism, and a dust collecting device for collecting dust generated by the driving unit.
According to this configuration, when the glass ribbon is cut by the cutting mechanism, the dust generated by the driving unit is collected by the dust collecting device, and the dust can be prevented from adhering to the glass ribbon. Therefore, the quality of the glass sheet can be suppressed from being degraded.
In the manufacturing apparatus configured as described above, the driving unit may include a belt and a cover member that covers the belt, and the dust collecting device may include a connection portion that is connected to the cover member so as to suck the inside of the cover member. In the present invention, the dust generated by the belt inside the cover member is collected by the connection portion of the dust collecting device, so that the dust can be prevented from adhering to the glass ribbon.
In the manufacturing apparatus having the above configuration, the cutting mechanism may include a scribing mechanism for forming a scribing line on the glass ribbon, and the driving unit may move the scribing mechanism up and down. In the invention, the dust generated by the driving part which lifts the scribing mechanism is collected by the dust collecting device, thereby preventing the dust from attaching to the glass ribbon.
In the manufacturing apparatus having the above configuration, the cutting mechanism may include a scoring mechanism that forms a score line in the glass ribbon, the scoring mechanism may include a cutter that forms the score line in the glass ribbon, and the driving unit may move the cutter in a width direction of the glass ribbon. In the present invention, the dust generated by the driving unit that drives the cutter is collected by the dust collecting device, so that the dust can be prevented from adhering to the glass ribbon.
The present invention is a method for manufacturing a glass sheet for solving the above problems, the method for manufacturing a glass sheet using the above manufacturing apparatus, the method comprising a cutting step of cutting the glass ribbon using the cutting device, and the cutting step comprising a dust collecting step of collecting the dust generated by the driving unit using the dust collecting device.
According to this configuration, the dust generated by the driving unit is collected in the dust collecting step in the cutting step, and the adhesion of the dust to the glass ribbon can be prevented. Therefore, the quality of the glass sheet can be suppressed from being degraded.
Effects of the invention
According to the present invention, the quality of the glass sheet can be prevented from being degraded.
Drawings
FIG. 1 is a front view of an apparatus for manufacturing a glass sheet.
FIG. 2 is a side view of the glass plate manufacturing apparatus.
FIG. 3 is a rear view of the III-III line of sight scoring apparatus of FIG. 2.
Fig. 4 is a cross-sectional view of the scribing driving part viewed from IV-IV of fig. 3.
Fig. 5 is a sectional view of the elevation driving part of fig. 3 viewed from V-V.
FIG. 6 is a rear view of the VI-VI line-of-sight scoring device of FIG. 2.
Fig. 7 is a side view showing a step in the method for manufacturing a glass plate.
Fig. 8 is a side view showing a step in the method for manufacturing a glass plate.
Fig. 9 is a side view showing a step in the method for manufacturing a glass plate.
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings. Fig. 1 to 9 show an embodiment of a glass plate manufacturing apparatus and a manufacturing method of the present invention.
The glass plate manufacturing device comprises a cutting device for cutting a glass ribbon conveyed downwards in a vertical posture. As shown in fig. 1 and 2, the cutting apparatus 1 includes a scribing apparatus 2 for forming a scribe line SL in a glass ribbon GR, a breaking apparatus 3 for breaking the glass ribbon GR along the scribe line SL, and a dust collecting apparatus 4.
The scribing device 2 includes a scribing mechanism 5, a scribing driving section 6 for driving the scribing mechanism 5, lifting mechanisms 7a and 7b for lifting the scribing mechanism 5, and lifting driving sections 8a and 8b for driving the lifting mechanisms 7a and 7b, respectively.
The scribing mechanism 5 includes a cutter wheel 9 for forming a scribing line SL on one surface (hereinafter referred to as "first main surface") GRa of the glass ribbon GR, and a support rod 10 serving as a support member for supporting the other surface (hereinafter referred to as "second main surface") GRb of the glass ribbon GR.
The cutter wheel 9 is formed into a disk shape having blades (tips) at the peripheral edge. The cutter wheel 9 is configured to be movable in the width direction of the glass ribbon GR by the scribing drive unit 6. Thus, the cutter wheel 9 can form the scribing line SL from one end portion to the other end portion in the width direction of the glass ribbon GR.
The cutter wheel 9 is configured to be able to approach and separate from the first main surface GRa of the glass ribbon GR. The cutter wheel 9 can be changed in position to a standby position separated from the glass ribbon GR as shown by the solid line in fig. 2 and a contact position contacting the first main surface GRa of the glass ribbon GR as shown by the two-dot chain line.
The support rod 10 is formed of a bar-shaped member or a plate-shaped member formed in an elongated shape along the width direction of the glass ribbon GR, but is not limited to this shape. The support rod 10 is disposed to face the cutter wheel 9 with the glass ribbon GR therebetween. The support rod 10 is configured to be able to approach and separate from the second main surface GRb of the glass ribbon GR. The support lever 10 can be changed in position to a standby position separated from the glass ribbon GR as shown by the solid line in fig. 2 and a contact position contacting the second main surface GRb of the glass ribbon GR as shown by the two-dot chain line.
As shown in fig. 1 to 4, the scribing driving part 6 is composed of a belt driving part. The scribing drive part 6 includes a belt 11 that movably supports the cutter wheel 9, pulleys 12a and 12b disposed inside the belt 11, and a cover member 13 that covers the belt 11 and the pulleys 12a and 12b.
The belt 11 is formed of resin or the like in an endless belt shape. The pulleys 12a, 12b include a drive pulley 12a and a driven pulley 12b separated in the width direction of the glass ribbon GR. The drive pulley 12a is driven to rotate by an electric motor. The belt 11 is driven by a driving pulley 12a, and the cutter wheel 9 is moved in the width direction of the glass ribbon GR.
The cover member 13 is formed in a hollow rectangular parallelepiped shape, but is not limited to this shape. The cover member 13 is constituted by a plurality of wall portions surrounding the belt 11 and the pulleys 12a, 12b. The cover member 13 has an opening 13a connected to the dust collecting device 4.
The lifting mechanisms 7a and 7b include a first lifting mechanism 7a for lifting the cutter wheel 9 and the scribing driving part 6, and a second lifting mechanism 7b for lifting the support rod 10. The lifting mechanisms 7a and 7b are constituted by, for example, ball screw mechanisms, but are not limited to this configuration, and may be constituted by various actuators capable of lifting.
As shown in fig. 3 and 5, the first elevating mechanism 7a includes a pair of first and second screw members 14a and 14b and a pair of first and second nut members 15a and 15b engaged with the screw members 14a and 14 b.
The lower end portions of the screw members 14a and 14b are fixed to the upper portion of the cover member 13 of the scribing driving portion 6. The nut members 15a and 15b are rotatably supported by the support structure. The nut members 15a and 15b are rotationally driven by the elevation driving section 8a, and the screw members 14a and 14b are elevated.
As shown in fig. 6, the second lifting mechanism 7b includes a pair of first and second screw members 16a and 16b and a pair of first and second nut members 17a and 17b engaged with the screw members 16a and 16 b.
The lower end portions of the screw members 16a and 16b are connected to the support rod 10. The nut members 17a and 17b are rotationally driven by the elevation driving section 8b to elevate and lower the screw members 16a and 16 b.
The elevation driving units 8a and 8b include a first elevation driving unit 8a that drives the first elevation mechanism 7a and a second elevation driving unit 8b that drives the second elevation mechanism 7b.
As shown in fig. 1 to 3 and 5, the first elevation driving unit 8a includes: belts 18a, 18b wound around the nut members 15a, 15b of the first elevating mechanism 7 a; a drive pulley 19 that drives the belts 18a, 18b; an electric motor 20 that rotationally drives the drive pulley 19; and a cover member 21 covering the belts 18a, 18b and the drive pulley 19.
The belts 18a and 18b are formed in an endless belt shape by resin or the like. The belts 18a, 18b include a first belt 18a driving the first nut member 15a and a second belt 18b driving the second nut member 15b. The first belt 18a is wound around the first nut member 15a and the drive pulley 19. The second belt 18b is wound around the second nut member 15b and the drive pulley 19.
The drive pulley 19 is disposed inside the first belt 18a and inside the second belt 18b. The electric motor 20 is constituted by, for example, a servo motor, but is not limited to this configuration, and may be constituted by various other motors. The shaft of the electric motor 20 is connected to the drive pulley 19. The drive pulley 19 is configured to be rotatable in forward and reverse directions by an electric motor 20.
The cover member 21 is formed in a hollow rectangular parallelepiped shape, but is not limited to this shape. The cover member 21 is constituted by a plurality of wall portions surrounding the belts 18a, 18b and the drive pulley 19. The cover member 21 accommodates the nut members 15a and 15b and parts of the screw members 14a and 14b of the first elevating mechanism 7a in addition to the belts 18a and 18b and the drive pulley 19. The cover member 21 has an opening 21a connected to the dust collecting device 4. A support structure for rotatably supporting the nut members 15a and 15b is disposed inside the cover member 21.
The second elevation driving unit 8b has the same configuration as the first elevation driving unit 8 a. As shown in fig. 6, the second elevation driving unit 8b includes: a first belt 22a and a second belt 22b made of resin, which are wound around the nut members 17a and 17b of the second lifting mechanism 7b and are in an endless belt shape; a drive pulley 23 that drives the belts 22a and 22b; an electric motor 24 that drives the pulley 23 to rotate; and a cover member 25 that covers the belts 22a, 22b and the drive pulley 23.
The cover member 25 of the second elevation driving portion 8b is formed in a hollow rectangular parallelepiped shape, but is not limited to this shape. The cover member 25 is constituted by a plurality of wall portions surrounding the belts 22a, 22b and the drive pulley 23. The cover member 25 accommodates the nut members 17a and 17b and a part of the screw members 16a and 16b of the second elevating mechanism 7b in addition to the belts 22a and 22b and the drive pulley 23. The cover member 25 has an opening 25a connected to the dust collecting device 4. A support structure for rotatably supporting the nut members 17a and 17b is disposed inside the cover member 25.
As shown in fig. 1 and 2, the breaking device 3 includes a breaking mechanism 26 for breaking the glass ribbon GR and a breaking lift mechanism 27 for lifting and lowering the breaking mechanism 26.
The breaking mechanism 26 includes: a fulcrum lever 28 that forms a fulcrum of breaking of the glass ribbon GR; and support devices 29a and 29b configured to support a part of the glass ribbon GR and to be capable of changing a posture so as to apply bending stress to the glass ribbon GR.
The fulcrum lever 28 is formed of a bar-like member or a plate-like member that is formed long in the width direction of the glass ribbon GR, but is not limited to this shape. The fulcrum lever 28 is disposed at a position below the scribing mechanism 5.
The fulcrum lever 28 is configured to be able to approach and separate from the glass ribbon GR. The fulcrum lever 28 can be changed in position to a standby position where it is separated from the glass ribbon GR and stands by as indicated by solid lines in fig. 2 and a contact position where it contacts the second main surface GRb of the glass ribbon GR as indicated by two-dot chain lines. The fulcrum lever 28 is configured to be movable in the vertical direction. The fulcrum lever 28 is movable downward at the same speed as the lowering speed of the glass ribbon GR.
The support devices 29a and 29b are disposed at positions below the fulcrum bar 28. As shown in fig. 1, the support devices 29a and 29b include a first support device 29a that supports one end portion in the width direction of the glass ribbon GR and a second support device 29b that supports the other end portion in the width direction of the glass ribbon GR. The first support device 29a and the second support device 29b are disposed so as to face each other in the width direction of the glass ribbon GR.
As shown in fig. 1 and 2, each of the support devices 29a and 29b includes a plurality of chucks 30 arranged at a predetermined interval in the vertical direction, and a frame 31 supporting each of the chucks 30.
The frame 31 is configured to perform a predetermined swinging operation (turning operation) so as to apply bending stress to the glass ribbon GR. The frame 31 is connected to a swing mechanism for performing the swing operation. The swing mechanism is connected to a drive unit (swing drive unit) that drives the swing mechanism.
The breaking lift mechanism 27 includes a support member 27a that supports the frame 31, and a support column 27b that supports the support member 27a so as to be able to lift. The support column 27b is provided with a motor and other driving unit (breaking lifting driving unit) for lifting and lowering the support member 27 a. The breaking lift mechanism 27 can move the frame 31 downward at the same speed as the downward movement speed of the glass ribbon GR.
As shown in fig. 1 to 6, the dust collection device 4 includes a first connection portion 32 connected to the scribing drive portion 6, a second connection portion 33 connected to the elevation drive portions 8a and 8b, a suction portion 34 for sucking glass powder generated when the glass ribbon GR is cut, a third connection portion 35 connected to the suction portion 34, and a dust collector 36 connected to the first connection portion 32 to the third connection portion 35.
As shown in fig. 1 to 4, the first connection portion 32 is formed of a flexible tube. The first connecting portion 32 is fixed to the cover member 13 of the scribing driving portion 6 so as to communicate with the opening portion 13a of the cover member 13. The first connection portion 32 is configured to suck dust such as abrasion powder generated in the internal space of the cover member 13. In particular, since abrasion dust is likely to be generated at the contact portions where the belt 11 contacts the pulleys 12a, 12b, the first connecting portions 32 are disposed in the vicinity of the pulleys 12a, 12b.
As shown in fig. 1 to 3 and 5, the second connection portion 33 is formed of a flexible tube. The second connecting portion 33 is fixed to the cover members 21 and 25 so as to communicate with the openings 21a and 25a formed in the cover members 21 and 25 of the elevation driving portions 8a and 8b. The second connection portion 33 is configured to suck dust such as abrasion powder generated in the internal space of the cover members 21 and 25. In particular, since abrasion powder is likely to be generated at the contact portions where the belts 18a, 18b, 22a, 22b contact the drive pulleys 19, 23 and at the contact portions where the belts 18a, 18b, 22a, 22b, and the threaded members 14a, 14b, 16a, 16b contact the nut members 15a, 15b, 17a, 17b, the second connecting portion 33 is disposed in the vicinity of the drive pulleys 19, 23, the threaded members 14a, 14b, 16a, 16b, and the nut members 15a, 15b, 17a, 17b.
As shown in fig. 2, the suction portion 34 is disposed so as to face the fulcrum lever 28 with the glass ribbon GR interposed therebetween. The suction portion 34 is configured to be able to approach and separate from the glass ribbon GR. The suction portion 34 can be changed in position to a standby position separated from the glass ribbon GR as shown by the solid line in fig. 2 and a suction position located in the vicinity of the first main surface GRa of the glass ribbon GR as shown by the two-dot chain line.
The suction unit 34 is configured to be movable in the vertical direction. The suction portion 34 can move downward at the same speed as the lowering speed of the glass ribbon GR. The third connection portion 35 is formed of a flexible hose. The third connecting portion 35 is fixed to a part of the suction portion 34 so as to feed the glass powder sucked by the suction portion 34 to the dust collector 36.
The dust collector 36 is constituted by a suction device for generating negative pressure in each of the connection parts 32, 33, 35. The dust collector 36 collects dust in the elevation driving sections 8a and 8b sucked by the first connection section 32 and the second connection section 33. The dust collector 36 collects the glass powder sucked by the suction unit 34 through the third connection unit 35.
A method for manufacturing a glass sheet using the manufacturing apparatus (cutting apparatus 1) having the above-described configuration will be described below. The method includes a cutting step of cutting a glass sheet by breaking a portion of the glass ribbon GR.
In the cutting step, a part of the glass ribbon GR in the vertical posture, which is formed above the cutting apparatus 1 and conveyed downward, is cut by the cutting apparatus 1. The cutting step includes a scribing step of forming a scribing line SL on the glass ribbon GR, a bending stress applying step of applying bending stress to the glass ribbon GR, and a dust collecting step by the dust collecting device 4.
In the scribing step, a scribing line SL extending in the width direction is formed at the middle portion of the glass ribbon GR by the scribing apparatus 2. The scoring mechanism 5 of the scoring device 2 descends at the same speed as the descending speed of the glass ribbon GR and forms a score line SL on the first main surface GRa of the glass ribbon GR.
In the scribing step, the breaking device 3 lowers the breaking mechanism 26 at the same speed as the lowering speed of the glass ribbon GR, with a part of the glass ribbon GR being supported by the support devices 29a and 29b of the breaking mechanism 26.
As shown in fig. 7, the scribing mechanism 5 moves the cutter wheel 9 and the support rod 10 from the standby position to the contact position. The scribing mechanism 5 moves the cutter wheel 9 from one end portion to the other end portion in the width direction of the glass ribbon GR with the support rod 10 in contact with the second main surface GRb of the glass ribbon GR.
As a result, a linear scribe line SL extending in the width direction is formed on the first main surface GRa of the glass ribbon GR. When the scribing line SL is formed, the scribing mechanism 5 moves the cutter wheel 9 and the support bar 10 to the standby position.
As shown in fig. 8, in the bending stress applying step, the breaking device 3 moves the fulcrum lever 28 located at the standby position to the contact position while maintaining the downward movement of the breaking mechanism 26. Thus, the fulcrum bar 28 contacts a portion of the second main surface GRb of the glass ribbon GR corresponding to the position where the scribe line SL is formed. The breaking mechanism 26 lowers the fulcrum bar 28 and the support devices 29a and 29b at the same speed as the lowering speed of the glass ribbon GR.
As shown in fig. 8, in the bending stress applying step, the dust collecting device 4 lowers the suction portion 34 at the same speed as the lowering speed of the glass ribbon GR, and moves the suction portion 34 from the standby position to the suction position. Thereby, the suction portion 34 is located in the vicinity of the scribe line SL. The suction unit 34 moves downward together with the glass ribbon GR while maintaining the suction position.
As shown in fig. 9, the breaking mechanism 26 swings (rotates) the frame 31 while maintaining the state of supporting the glass ribbon GR by the chucks 30 of the supporting devices 29a, 29b during the lowering thereof. In this case, the frame 31 swings so as to form a predetermined angle with the contact position of the fulcrum bar 28 with the glass ribbon GR as the center (fulcrum). Thereby, the support devices 29a and 29b change the posture from the vertical posture to the breaking posture (inclined posture).
In this way, the support devices 29a and 29b (the frame 31) change the posture, and bending stress is applied to the portion of the glass ribbon GR where the scribe line SL is formed. Under the action of the bending stress, a crack starting from the scribe line SL progresses in the thickness direction of the glass ribbon GR. Thereby, a part of the glass ribbon GR supported by the support devices 29a, 29b is cut out as a glass sheet GS.
In the dust collecting step, the dust collecting device 4 operates the dust collector 36 at all times, and sucks the air in the scribing driving part 6 and the lifting driving parts 8a and 8b through the first connecting part 32 and the second connecting part 33. Thus, the dust collector 36 collects dust such as abrasion powder generated by the belts 11, 18a, 18b, 22a, and 22 b. The dust collector 4 collects glass powder generated when the glass sheet GS is cut out from the glass ribbon GR by the dust collector 36 through the suction unit 34 and the third connection unit 35.
According to the manufacturing apparatus and the manufacturing method of the glass sheet GS of the present embodiment described above, in the dust collecting step, the dust such as abrasion powder generated from the belts 11, 18a, 18b, 22a, and 22b of the driving units 6, 8a, and 8b can be removed by sucking air in the scribing driving unit 6 and the lifting driving units 8a and 8b of the driving mechanism 5, such as the lifting mechanisms 7a and 7b, for cutting the glass ribbon GR, by the dust collecting device 4. This can prevent the quality of the glass sheet GS from being degraded due to the adhesion of dust to the glass ribbon GR.
The present invention is not limited to the configurations of the above embodiments, and is not limited to the above-described operational effects. The present invention can be variously modified within a scope not departing from the gist of the present invention.
In the above-described embodiment, the scribing apparatus 2 including the support rod 10 is illustrated, but the present invention is not limited to this configuration. The scribing mechanism 5 of the scribing apparatus 2 may be provided with a cylindrical support roller instead of the support rod 10.
In this case, the scoring mechanism 5 may be configured to move the glass ribbon GR in the width direction thereof in synchronization with each other while holding the glass ribbon GR between the first main surface GRa and the second main surface GRb by both the support roller and the cutter wheel 9. In this case, the scribing device 2 may include a belt-type driving unit that moves the support roller. The driving section may have the same configuration as the scribing driving section 6 of the cutter wheel 9. The dust collector 4 may have a connection portion connected to the scribing driving portion of the support roller. The connection portion may have the same structure as the first connection portion 32.
In the above-described embodiment, the dust generated by the scribing driving unit 6 and the lifting/lowering driving units 8a and 8b of the scribing apparatus 2 is collected by the dust collecting device 4. The cutting mechanism of the present invention includes not only the scribing mechanism 5 and the lifting mechanisms 7a and 7b, but also the breaking mechanism 26 and the swing mechanism. The driving unit that is the object of dust collection by the dust collection device 4 further includes a breaking lifting/lowering driving unit that drives the breaking mechanism 26 of the breaking device 3, and a swing driving unit that drives the swing mechanism. The dust collecting device 4 may include a connection portion connected to the driving portions.
In the above-described embodiment, the object to be dust-collected is exemplified by abrasion powder generated by the belts 11, 18a, 18b, 22a, and 22b, but the present invention is not limited to this configuration. The dust collector 4 can collect dust, for example, which is made of oil stains or the like generated from lubricating oil or the like.
In the above-described embodiment, the cutter wheel 9 is exemplified as a member for forming the scribing line SL, but the present invention is not limited to this configuration. The member for forming the scribe line SL may be another member as long as the scribe line SL can be formed by moving on the first main surface GRa of the glass ribbon GR. For example, a needle-shaped blade or the like may be used as the scribe line forming member.
Description of the reference numerals
1. Cutting device
4. Dust collecting device
5. Scribing mechanism
6. Scribing driving part
7a first lifting mechanism
7b second lifting mechanism
8a first lifting drive part
8b second lifting drive part
9. Knife flywheel
11. Belt
13. Cover member
18a first belt
18b second band
21. Cover member
22a first belt
22b second band
25. Cover member
26. Breaking mechanism
32. First connecting part
33. Second connecting part
GR glass belt
A GS glass plate.
Claims (5)
1. A glass plate manufacturing apparatus includes a cutting device for cutting a glass ribbon conveyed downward in a vertical posture to form a glass plate,
the apparatus for manufacturing a glass sheet is characterized in that,
the cutting device includes a cutting mechanism for cutting the glass ribbon, a drive unit for driving the cutting mechanism, and a dust collecting device for collecting dust generated by the drive unit.
2. The glass-plate manufacturing apparatus according to claim 1,
the drive unit includes a belt and a cover member covering the belt,
the dust collecting device includes a connecting portion connected to the cover member so as to suck the interior of the cover member.
3. The glass-plate manufacturing apparatus according to claim 1 or 2,
the cutting mechanism is provided with a scribing mechanism for forming a scribing line on the glass ribbon,
the drive section raises and lowers the scoring mechanism.
4. The glass-plate manufacturing apparatus according to claim 1 or 2,
the cutting mechanism is provided with a scribing mechanism for forming a scribing line on the glass ribbon,
the scoring mechanism includes a blade configured to form the score line in the glass ribbon,
the drive section moves the cutter in the width direction of the glass ribbon.
5. A method for manufacturing a glass sheet by using the manufacturing apparatus according to any one of claims 1 to 4,
the method for manufacturing a glass sheet is characterized in that,
comprises a cutting step of cutting the glass ribbon by the cutting device,
the cutting step includes a dust collecting step of collecting the dust generated by the driving unit by the dust collecting device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020100218A JP7495659B2 (en) | 2020-06-09 | 2020-06-09 | Glass plate manufacturing apparatus and method |
| JP2020-100218 | 2020-06-09 | ||
| PCT/JP2021/011941 WO2021250975A1 (en) | 2020-06-09 | 2021-03-23 | Apparatus and method for manufacturing glass sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115362136A true CN115362136A (en) | 2022-11-18 |
Family
ID=78845470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202180025615.8A Pending CN115362136A (en) | 2020-06-09 | 2021-03-23 | Glass plate manufacturing device and manufacturing method |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP7495659B2 (en) |
| KR (1) | KR20230023606A (en) |
| CN (1) | CN115362136A (en) |
| WO (1) | WO2021250975A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022186188A1 (en) | 2021-03-02 | 2022-09-09 | 株式会社Ihi | Workpiece cutting device and workpiece cutting method |
| WO2023243308A1 (en) * | 2022-06-17 | 2023-12-21 | 日本電気硝子株式会社 | Method and device for producing glass plates |
| JP2024003429A (en) * | 2022-06-27 | 2024-01-15 | 日本電気硝子株式会社 | Apparatus and method for manufacturing glass plate |
| WO2024118203A1 (en) * | 2022-11-28 | 2024-06-06 | Corning Incorporated | Glass manufacturing apparatus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003040049A1 (en) * | 2001-11-08 | 2003-05-15 | Sharp Kabushiki Kaisha | Method and device for parting glass substrate, liquid crystal panel, and liquid crystal panel manufacturing device |
| JP2008127228A (en) * | 2006-11-17 | 2008-06-05 | Shibuya Kogyo Co Ltd | Plate processing apparatus |
| CN103739191A (en) * | 2013-11-13 | 2014-04-23 | 上海和辉光电有限公司 | Cutting dust suction apparatus and cutting method |
| CN108137372A (en) * | 2015-12-21 | 2018-06-08 | 日本电气硝子株式会社 | The manufacturing device of glass plate |
| CN210336164U (en) * | 2019-07-31 | 2020-04-17 | 日本电气硝子株式会社 | Protective sheet cutting device |
-
2020
- 2020-06-09 JP JP2020100218A patent/JP7495659B2/en active Active
-
2021
- 2021-03-23 KR KR1020227029778A patent/KR20230023606A/en unknown
- 2021-03-23 WO PCT/JP2021/011941 patent/WO2021250975A1/en active Application Filing
- 2021-03-23 CN CN202180025615.8A patent/CN115362136A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003040049A1 (en) * | 2001-11-08 | 2003-05-15 | Sharp Kabushiki Kaisha | Method and device for parting glass substrate, liquid crystal panel, and liquid crystal panel manufacturing device |
| JP2008127228A (en) * | 2006-11-17 | 2008-06-05 | Shibuya Kogyo Co Ltd | Plate processing apparatus |
| CN103739191A (en) * | 2013-11-13 | 2014-04-23 | 上海和辉光电有限公司 | Cutting dust suction apparatus and cutting method |
| CN108137372A (en) * | 2015-12-21 | 2018-06-08 | 日本电气硝子株式会社 | The manufacturing device of glass plate |
| CN210336164U (en) * | 2019-07-31 | 2020-04-17 | 日本电气硝子株式会社 | Protective sheet cutting device |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20230023606A (en) | 2023-02-17 |
| JP7495659B2 (en) | 2024-06-05 |
| JP2021195266A (en) | 2021-12-27 |
| WO2021250975A1 (en) | 2021-12-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115362136A (en) | Glass plate manufacturing device and manufacturing method | |
| KR100762054B1 (en) | Automated flat glass separator | |
| US8029879B2 (en) | Display device having pair of glass substrates and method for cutting it | |
| JPWO2015129252A1 (en) | Glass plate processing method and processing apparatus | |
| CN115626770B (en) | Optical glass production is with cutting edging system | |
| JPH09263417A (en) | Working device for glass plate and cracking device adequate for the same | |
| CN117430322B (en) | Automatic glass cutting equipment | |
| CN109851214B (en) | Glass breaking machine | |
| CN113683297A (en) | Full-automatic film cutting system | |
| CN112830251B (en) | Batch membrane separation and inspection device for manufacturing flexible display | |
| TW201532989A (en) | Scribing device | |
| CN215975544U (en) | Breaking device for large glass | |
| CN216427121U (en) | Glass breaks disconnected device off with fingers and thumb | |
| CN114956537B (en) | Flexible glass transverse cutting and breaking device and breaking method thereof | |
| CN109422456B (en) | Inclined breaking device and breaking method for brittle material substrate | |
| JP2019196281A (en) | Substrate dividing device | |
| CN109734297B (en) | Automatic cutting production line for ultrathin glass | |
| KR20080018465A (en) | Conveyor appratus of brittle material substrate | |
| WO2015136946A1 (en) | Glass plate processing method and processing device | |
| CN108672337B (en) | Substrate cleaner | |
| CN103708712A (en) | Transverse cutting machine for cutting ultrathin plate glass | |
| CN105293039B (en) | Substrate transfer device | |
| CN116583388A (en) | Method for manufacturing sheet glass and cutting device | |
| JP2006169045A (en) | Conveying device of plate glass with cutting line for plate glass cutting machine | |
| CN209906634U (en) | Glass sheet breaking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |