WO2022130750A1 - Procédé de production de verre à glace et dispositif de découpe - Google Patents

Procédé de production de verre à glace et dispositif de découpe Download PDF

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Publication number
WO2022130750A1
WO2022130750A1 PCT/JP2021/037438 JP2021037438W WO2022130750A1 WO 2022130750 A1 WO2022130750 A1 WO 2022130750A1 JP 2021037438 W JP2021037438 W JP 2021037438W WO 2022130750 A1 WO2022130750 A1 WO 2022130750A1
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WO
WIPO (PCT)
Prior art keywords
region
width direction
back surface
cutting
contact
Prior art date
Application number
PCT/JP2021/037438
Other languages
English (en)
Japanese (ja)
Inventor
力 岸田
Original Assignee
日本電気硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本電気硝子株式会社 filed Critical 日本電気硝子株式会社
Priority to KR1020237022778A priority Critical patent/KR20230122051A/ko
Priority to CN202180083323.XA priority patent/CN116583388A/zh
Publication of WO2022130750A1 publication Critical patent/WO2022130750A1/fr

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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
    • C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
    • C03B33/03—Glass cutting tables; Apparatus for transporting or handling sheet glass during the cutting or breaking operations
    • 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
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/225—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising for scoring or breaking, e.g. tiles
    • 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
    • B28D7/04—Accessories specially adapted for use with machines or devices of the preceding groups for supporting or holding work or conveying or discharging work
    • 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

Definitions

  • the present invention relates to an improvement in a plate glass manufacturing technique including a technique for cutting a plate glass along a scribe line.
  • Plate glass is used in various fields, as represented by glass substrates for displays such as liquid crystal displays, plasma displays, and organic EL displays, and cover glasses for organic EL lighting.
  • a step of sequentially cutting out flat glass of a predetermined length from a glass ribbon, a step of removing unnecessary regions along the sides of the flat glass, and the like are executed.
  • a desired flat glass can be obtained by forming scribe lines on a glass ribbon or flat glass and then cutting them along the scribe lines.
  • Specific examples of the method for obtaining flat glass by cutting include the method disclosed in Patent Document 1.
  • a scribe line is formed on the front surface side of the boundary portion between the first region and the second region arranged adjacent to each other in the width direction of the plate glass, and the first region is supported from the back surface side (support portion).
  • the second region is pushed toward the back surface side by the external force applying portion (rolling body) in a state of being contact-supported by the back surface support member).
  • the flat glass is cut along the scribe line.
  • the cutting at this time is performed by supporting the flat glass in a vertical posture.
  • An object of the present invention is to suppress the occurrence of chipping, cracking, etc. by allowing an appropriate bending stress to act on a region where a scribe line is formed when cutting a plate glass in a vertical posture.
  • the first region and the second region are arranged adjacent to each other in the width direction, and a scribing line is provided on the surface side of the boundary portion between the regions.
  • the plate glass is formed by applying a force toward the back surface side to the second region by the external force applying portion in a state where the end portion on the scrib line side of the first region is contact-supported by the support portion.
  • a method for manufacturing a plate glass including a cutting step of cutting along a scribing line, in which a position where the support portion contacts the first region and a position where the external force applying portion contacts the second region as a pre-step of the cutting step. It is characterized by comprising an adjustment step of adjusting at least one of the above in the width direction.
  • each contact position can be set to an optimum position according to the warp of the flat glass.
  • an appropriate bending stress can be applied to the region where the scribe wire is formed, so that the occurrence of chipping, cracking, etc. is suppressed.
  • the support portion contacts and supports the back surface of the first region at a position facing the back surface support member and the back surface support member.
  • a member is provided, and in the cutting step, the first region is sandwiched from both sides of the front and back surfaces by the back surface support member and the front surface support member, and in the adjustment step, the position where the back surface support member and the front surface support member come into contact with the first region.
  • at least one of the positions where the external force applying portion contacts the second region may be adjusted in the width direction.
  • the contact position of the back surface support member and the front surface support member with respect to the first region and the contact position of the external force applying portion with respect to the second region can be adjusted in the width direction in the adjustment step.
  • Appropriate bending stress can be applied to the formation region of.
  • the cutting step since the first region is sandwiched from both sides of the front and back surfaces by the back surface support member and the front surface support member, it is possible to suppress shaking and reduce warpage when the flat glass is cut.
  • the external force applying portion is at a position facing the pushing member and the pushing member that pushes the second region to the back surface side in a state of being in contact with the front surface of the second region. It is equipped with a suction mechanism that sucks and holds the back surface of the second region while following the operation of the pushing member.
  • At least one of the position where the support portion contacts the first region and the position where the pushing member and the suction mechanism contact the second region may be adjusted in the width direction.
  • the adjustment step the position where the back surface support member and the surface support member come into contact with the first region, and the pushing member and the suction mechanism are second. At least one of the positions in contact with the region will be adjusted in the width direction.
  • the contact position of the support portion with respect to the first region and the contact position of the pushing member and the suction mechanism with respect to the second region can be adjusted in the width direction. Appropriate bending stress can be applied to.
  • the cutting step since the second region is sandwiched from both sides of the front and back surfaces by the pushing member and the suction mechanism, it is easy to apply a force toward the back surface side to the second region, and the warp of the flat glass can be reduced. Further, after cutting, the second region can be recovered while being adsorbed and held by the adsorption mechanism.
  • the support portion and the external force applying portion are arranged in a single moving mechanism that can move in the width direction. By moving the support portion in the width direction, both the position where the support portion contacts the first region and the position where the external force applying portion contacts the second region may be adjusted in the width direction.
  • both the contact position of the support portion with respect to the first region and the contact position of the external force applying portion with respect to the second region can be adjusted in the width direction by simply moving a single moving mechanism.
  • the operation unit for operating the movement of the moving mechanism in the width direction is arranged outside the cutting chamber for performing the cutting step.
  • the support portion is arranged in the first moving mechanism that can move in the width direction, and the external force applying portion can move in the width direction. It is arranged in the second moving mechanism, and in the adjustment step, by moving at least one of the first moving mechanism and the second moving mechanism in the width direction, the position where the support portion comes into contact with the first region and the external force are applied. At least one of the positions where the portion contacts the second region may be adjusted in the width direction.
  • the contact position of the support portion with respect to the first region can be adjusted in the width direction by moving the first moving mechanism, and the external force applying portion to the second region can be adjusted by moving the second moving mechanism.
  • the contact position of can be adjusted in the width direction. Further, since the widthwise distance between the support portion and the external force applying portion can be adjusted by the first movement mechanism and the second movement mechanism, more precise adjustment is possible.
  • each of the first operation unit that operates the movement in the width direction of the first movement mechanism and the second operation unit that operates the movement in the width direction of the second movement mechanism is divided. It is preferably located outside the cutting chamber for performing the process.
  • the worker can perform the adjustment work from outside the cutting room, so that it is not necessary to stop the supply of the flat glass to the cutting room even during the adjustment work. Therefore, since the plate glass cutting process can be restarted immediately after the adjustment work is completed, the plate glass manufacturing efficiency is improved.
  • an inspection step of inspecting at least one of the divided first region and the second region as an inspection target is provided.
  • an abnormality is detected in the inspection target in the inspection step, it is preferable to perform the adjustment step.
  • the presence or absence of abnormalities in the inspection target is directly inspected in the inspection process, and the adjustment process is performed based on the result, so that the adjustment process can be reliably performed at the required time.
  • the first region and the second region are arranged adjacent to each other in the width direction, and a scribe line is provided on the surface side of the boundary portion between the regions.
  • the region along the scribe line of the first region is contact-supported by the support portion, and the external force applying portion applies a force toward the back surface side to the second region to apply the plate glass.
  • It is a plate glass cutting device that cuts along a scribe line, and is characterized in that a support portion and an external force applying portion are arranged in a single moving mechanism that can move in the width direction.
  • the first region and the second region are arranged adjacent to each other in the width direction, and a scribe line is provided on the surface side of the boundary portion between the regions.
  • the plate glass is formed by applying a force toward the back surface side to the second region by the external force applying portion in a state where the end portion on the scribe line side of the first region is contact-supported by the support portion.
  • a flat glass breaking device that cuts along a scribe line, the support part is arranged in the first moving mechanism that can move in the width direction, and the external force applying part is independent of the first moving mechanism in the width direction. It is characterized in that it is arranged in a movable second moving mechanism.
  • the present invention it is possible to suppress the occurrence of chipping, cracking, etc. by allowing an appropriate bending stress to act on the formation region of the scribe line when cutting the flat glass in the vertical posture.
  • FIG. 3 is a schematic plan view showing an adjusting device included in the cutting device shown in FIG. 1. It is a schematic bottom view which shows the cutting process included in the manufacturing method of the flat glass which concerns on the 2nd Embodiment of this invention. It is a schematic plan view which shows the adjustment apparatus provided in the cutting apparatus included in the plate glass manufacturing apparatus which concerns on 3rd Embodiment of this invention.
  • FIG. 1 is a perspective view illustrating the cutting device 1 included in the flat glass manufacturing device according to the first embodiment of the present invention.
  • the flat glass G has a first region G1 and a second region G2 arranged adjacent to each other in the width direction.
  • the first region G1 is a region cut out from the plate glass G to be a product, and the plate thickness is uniform over the entire area.
  • the second region G2 is a region cut out from the plate glass G and discarded, and although not shown, the selvage portion having a thicker plate thickness than the first region G1 at the outer end portion in the width direction (left end portion in the figure). including.
  • a scribe line S is formed on the surface Ga and Gx side of the boundary portion between the first region G1 and the second region G2.
  • the scribe line S does not reach the upper end and the lower end of the flat glass G.
  • the scribe line S may reach the upper end and the lower end of the flat glass G.
  • the first region G1 is referred to as an effective region
  • the second region G2 is referred to as an unnecessary region.
  • the flat glass G is suspended and supported in a vertical position so that the scribe line S faces in the vertical direction.
  • the plate thickness of the plate glass G (the plate thickness of the region excluding the selvage portion) is, for example, 200 to 2000 ⁇ m, and the upper limit of this plate thickness is preferably 500 ⁇ m, more preferably 400 ⁇ m. In this embodiment, the flat glass G has flexibility.
  • the plate glass G is warped in the vertical direction.
  • the specific shape of the warp is a shape in which the scribe line S on the surfaces Ga and Gx of the flat glass G and an arbitrary virtual straight line parallel to the scribe line S are curved. Further, the shape of the warp in the vertical direction generated in the plate glass G may change with time due to a change in molding conditions (for example, a change in the plate thickness or the glass composition).
  • the breaking device 1 cuts (folds) the flat glass G along the scribe line S in order to remove the unnecessary region G2. More specifically, the cutting device 1 has a gripping mechanism 2 that suspends and supports the flat glass G, a support portion 3 that contacts and supports the end of the effective region G1 on the scribe line S side, and an unnecessary region G2 toward the back surface Gy side. It is provided with an external force applying portion 4 for exerting a pushing force.
  • the gripping mechanism 2 has a pair of gripping pieces 2a and a driving unit 2b that brings the pair of gripping pieces 2a close to and separate from each other.
  • the configuration of the drive unit 2b is not limited to that of the illustrated example.
  • the pair of gripping pieces 2a grip the upper end portion of the effective region G1 by approaching each other, and release the state of gripping the upper end portion of the effective region G1 by separating from each other.
  • the pair of gripping pieces 2a may be configured to be gripped by opening the legs to release the gripped state and closing the legs.
  • the open leg means that the pair of gripping pieces 2a rotates in the direction of opening around the fulcrum (fulcrum)
  • the closed leg means that the pair of gripping pieces 2a closes around the fulcrum (fulcrum). It is to rotate in the direction.
  • the gripping mechanism 2 is slidably held on a rail (not shown) extending above the plate glass G along the width direction.
  • the gripping mechanism 2 plays a role of transporting the plate glass G to the cutting position and a role of transporting the effective region G1 to a subsequent process (for example, an inspection process) after the cutting.
  • the gripping mechanism 2 conveys the plate glass G in the width direction along the front surfaces Ga, Gx (or the back surface Gb, Gy) of the effective region G1 and the unnecessary region G2.
  • the gripping mechanism 2 is in a stopped state while holding the upper end portion of the effective region G1. In this case, the lower end of the flat glass G is not held.
  • the gripping mechanism 2 grips a plurality of locations in the width direction at the upper end of the effective region G1 (two locations (one location is not shown) in this embodiment).
  • the support portion 3 includes a back surface support member 5 arranged on the back surface Gb side of the effective region G1 and a surface support member 6 arranged on the front surface Ga side of the effective region G1 so as to face the back surface support member 5. ing.
  • the back surface support member 5 contacts and supports the effective region G1 from the back surface Gb side when the flat glass G is cut, and is arranged at the end of the effective region G1 on the scribe line S side.
  • the back surface support member 5 contacts and supports a vertically long region (a region along the scribe line S) of the back surface Gb of the effective region G1.
  • the back surface support member 5 moves closer to and away from the back surface Gb of the effective region G1 by the operation of a fluid pressure cylinder such as an air cylinder, a ball screw mechanism, or a drive means 7 (see FIG. 3) such as a robot arm. ..
  • the back surface support member 5 is a columnar body or a plate-like body (surface plate) elongated in the vertical direction.
  • the separation distance in the width direction between the back surface support member 5 and the scribe line S (the separation distance when the back surface support member 5 comes into contact with the effective region G1) is, for example, 10 to 30 mm, preferably 10 to 20 mm.
  • the back surface support member 5 extends from the upper end and the lower end of the effective region G1, but may not extend from the upper end and the lower end of the effective region G1.
  • the contact portion of the effective region G1 of the back surface support member 5 with the back surface Gb is preferably made of a material (for example, an elastic member such as rubber or resin) that does not easily scratch the back surface Gb of the effective region G1. ..
  • the surface support member 6 is contact-supported from the surface Ga side of the effective region G1 when the flat glass G is cut, and is arranged at the end of the effective region G1 on the scribe line S side.
  • the surface support member 6 contact-supports a vertically long region of the surface Ga of the effective region G1.
  • the front surface support member 6 presses the effective region G1 against the back surface support member 5 when the flat glass G is cut.
  • the surface support member 6 moves closer to and away from the surface Ga of the effective region G1 by the operation of a fluid pressure cylinder such as an air cylinder, a ball screw mechanism, or a drive means 8 (see FIG. 3) such as a robot arm. ..
  • the surface support member 6 is a columnar body or a plate-like body elongated in the vertical direction.
  • the length of the front surface support member 6 in the vertical direction is the same as that described above for the back surface support member 5.
  • the contact portion of the effective region G1 of the surface support member 6 with the surface Ga is preferably formed of a material (for example, an elastic member such as rubber or resin) that does not easily scratch the surface Ga of the effective region G1. ..
  • the external force applying portion 4 includes a suction mechanism 9 arranged on the back surface Gy side of the unnecessary region G2, and a pushing member 10 arranged on the front surface Gx side of the unnecessary region G2 so as to face the suction mechanism 9. ..
  • the suction mechanism 9 includes a holding base 9a that is long in the vertical direction and a plurality of (four in the example) suction pads 9b mounted at equal intervals in the longitudinal direction of the holding base 9a.
  • the holding substrate 9a moves closer to and away from the back surface Gy of the unnecessary region G2 by the operation of a fluid pressure cylinder such as an air cylinder, a ball screw mechanism, or a driving means 11 (see FIG. 3) such as a robot arm. Further, the holding substrate 9a moves so as to follow the pushing operation of the pushing member 10 by the operation of the driving means 11.
  • the suction pad 9b sucks and holds the back surface Gy of the unnecessary region G2 by a negative pressure, and is made of an elastic member such as elastic rubber or resin.
  • the suction pad 9b is configured to suck and hold the region of the unnecessary region G2 excluding the selvage portion, but may be configured to suck and hold the selvage portion of the unnecessary region G2. However, since the front and back surfaces of the selvage portion are not flat, it is preferable that the suction pad 9b is configured to suck and hold the region of the unnecessary region G2 excluding the selvage portion.
  • the pushing member 10 has a flat surface portion 10a in contact with the surface Gx of the unnecessary region G2, and in this embodiment, it is a columnar body or a plate-shaped body elongated in the vertical direction.
  • the pushing member 10 moves closer to and away from the surface Gx of the unnecessary region G2 by the operation of a fluid pressure cylinder such as an air cylinder, a ball screw mechanism, or a driving means 12 (see FIG. 3) such as a robot arm. Further, the pushing member 10 is rotated in a direction (for example, in the direction of arrow A) in which a pushing force toward the back surface Gy side is applied to the unnecessary region G2 by the operation of the driving means 12.
  • the pushing member 10 extends from the upper end and the lower end of the unnecessary region G2, but may not extend from the upper end and the lower end of the unnecessary region G2. Further, in the illustrated example, the push-in member 10 is configured to come into contact with the selvage portion of the unnecessary region G2, but may be configured to come into contact with the region of the unnecessary region G2 excluding the selvage portion.
  • the contact portion of the pressing member 10 with the surface Gx of the unnecessary region G2 may be formed of a material (for example, an elastic member such as rubber or resin) that does not easily scratch the surface Gx of the unnecessary region G2.
  • the pushing member 10 when the pushing member 10 is formed into a plate-like body as shown in the figure, the pushing member 10 may have rigidity equal to or higher than that of the plate glass G and have flexibility. preferable. As a result, even when a part of the pushing member 10 comes into contact with the selvage portion of the unnecessary region G2, the pushing member 10 comes into contact with both the selvage portion of the unnecessary region G2 and the other portion, and is appropriate for the unnecessary region G2.
  • the pushing force can be applied.
  • the pressing member 10 is preferably a porous resin plate or a foamed resin plate typified by plastic corrugated cardboard or paronia.
  • the method for manufacturing the flat glass includes a molding step of molding a glass ribbon by an overflow downdraw method in a molding furnace, and a slow cooling step of slowly cooling the molded glass ribbon in a slow cooling furnace. It includes a cooling step of cooling the slowly cooled glass ribbon in a cooling unit and a cutting step of cutting the cooled glass ribbon in a cutting chamber.
  • the molding furnace, the slow cooling furnace, the cooling chamber, and the cutting chamber are arranged in this order in the vertical direction. That is, the molding furnace is located at the top and the cutting chamber is located at the bottom. Then, in the molding furnace, the slow cooling furnace, the cooling chamber, and the cutting chamber, the postures of the glass ribbon and the plate glass G are maintained in the vertical posture.
  • a collection chamber for collecting unnecessary glass ribbons and / or flat glass may be provided below the cutting chamber.
  • the first cutting step of cutting the glass ribbon at predetermined lengths to obtain the flat glass G and the boundary portion between the effective region G1 and the unnecessary region G2 of the flat glass G are cut by using the above-mentioned cutting device 1. It is equipped with a second cutting process. In the following, the second cutting step having a characteristic configuration will be described in detail.
  • the flat glass G is suspended and supported by the gripping mechanism 2, and then pressed by a wheel cutter or irradiated with a laser.
  • a screen line S is formed on the surface of the flat glass G by the above means.
  • the scribe line S is formed on the surfaces Ga and Gx of the boundary portion between the effective region G1 and the unnecessary region G2 of the plate glass G.
  • the plate glass G on which the scribe line S is formed is conveyed in the width direction while being suspended and supported by the gripping mechanism 2, so that the plate glass G reaches the split position shown in FIG.
  • the front surface support member 6 and the back surface support member 5 are separated from the front surface Ga and the back surface Gb of the effective region G1, respectively, and the pushing member 10 and the suction mechanism 9 are also separated from the front surface Gx and the back surface Gy of the unnecessary region G2, respectively. is seperated. In this state, the plate glass G is warped in the vertical direction.
  • the back surface support member 5 moves toward the effective region G1, and the front surface support member 6 also moves toward the effective region G1.
  • the front surface support member 6 presses the effective region G1 against the back surface support member 5.
  • the suction mechanism 9 moves toward the unnecessary region G2, and the pushing member 10 also moves toward the unnecessary region G2.
  • the suction pad 9b of the suction mechanism 9 sucks and holds the back surface Gy of the unnecessary region G2, and the pushing member 10 comes into contact with the surface Gx of the unnecessary region G2.
  • the flat glass G is straightened into a flat shape with almost no warp around each contact portion of the front surface support member 6, the back surface support member 5, the pushing member 10, and the suction mechanism 9.
  • the shape for correcting the warp of the flat glass G is not limited to a flat shape as long as the flat glass G can be accurately cut along the scribe line S.
  • the positions where the front surface support member 6, the back surface support member 5, the pushing member 10 and the suction mechanism 9 come into contact with the effective region G1 and the unnecessary region G2 are adjusted in the width direction of the plate glass G. There is a need to. This is because an appropriate bending stress is applied to the formed region of the scribe line S to suppress chipping and cracking of the plate glass G at the time of breaking. The details of this adjustment process will be described later.
  • FIG. 2A, 2B, and 2C show a procedure for cutting the plate glass G after that, and each of these figures crosses the main part of the cutting device 1 and the main part of the plate glass G as viewed from below. It is a bottom view.
  • FIG. 2A shows an aspect in the initial stage of the cutting process. From this state, as shown in FIG. 2B, by rotating the suction mechanism 9 and the pushing member 10 in the direction of the arrow A, the pushing member 10 exerts a pushing force toward the back surface Gy side on the unnecessary region G2. .. As a result, the unnecessary region G2 is bent toward the back surface Gy side with the back surface support member 5 as a fulcrum. The suction mechanism 9 does not substantially exert a pulling force toward the back surface Gy side of the unnecessary region G2.
  • the tip of the drive means 8 of the front surface support member 6 and the tip of the drive means 7 of the back surface support member 5 so as to project toward the scribe line S side on the surface on the scribe line S side, respectively.
  • a pair of thin plate-shaped lip sheets 13 that are fixed and whose tip end abuts on the front surface Gx and the back surface Gy of the unnecessary region G2 are provided (not shown in FIG. 1).
  • the lip sheet 13 does not have an essential configuration and can be omitted as appropriate.
  • Both lip sheets 13 have a long rectangular shape in the vertical direction and are made of a flexible material such as resin or rubber.
  • the base end portions of both lip sheets 13 are fixed to the tip portions of the driving means 7 and 8 at positions separated from the front surface Ga, Gx and the back surface Gb, Gy of the unnecessary region G2 and the effective region G1, respectively.
  • the space surrounded by the front surface support member 6, the back surface support member 5, and the pair of lip sheets 13 is a gas flow space V, and the scribe line S exists in this space V.
  • one end (for example, the lower end) in the vertical direction of both lip sheets 13 is a suction port of the gas flow space V, and a suction hose (not shown) guided from the suction source is communicated and connected to this suction port.
  • the other end (for example, the upper end) in the vertical direction of both lip sheets 13 is regarded as the inlet of the gas flow space V, and the air passing through the filter is guided to this inlet.
  • the gas flows in from the inflow port of the gas flow space V to form a gas flow from the inflow port to the suction port in the gas flow space V.
  • the glass powder (chips) P generated during cutting is drawn into the suction hose from the suction port by riding on the air flow in the gas flow space V, and is collected at a predetermined storage location. To. As a result, the adhesion of the glass powder P to the effective region G1 can be suppressed.
  • the splitting device 1 adjusts the contact positions of the front surface support member 6 and the back surface support member 5 with respect to the effective region G1 and the contact positions of the push member 10 and the suction mechanism 9 with respect to the unnecessary region G2 in the width direction.
  • the adjusting device 21 is provided.
  • the adjusting device 21 operates with a single moving mechanism 22 in which the front surface supporting member 6 and the back surface supporting member 5, the pushing member 10 and the suction mechanism 9 are arranged, and an operation unit 23 for operating the movement of the moving mechanism 22. It is provided with a power transmission unit 24 that transmits the power of the unit 23 to the moving mechanism 22.
  • the moving mechanism 22 supports a pair of rails 25 extending in the width direction, a moving table 26 that can move in the width direction along the rail 25, and a back surface support member 5 and a suction mechanism 9 fixed on the moving table 26.
  • the back surface side substrate 27 and the front surface side substrate 28 fixed on the moving table 26 and supporting the surface support member 6 and the pushing member 10 are provided.
  • the rail 25 and the moving table 26 are arranged below the plate glass G, and the moving table 26 is arranged so as to straddle both the front and back surfaces of the plate glass G.
  • the back surface side substrate 27 is fixed to the regions on the back surface Gb and Gy side of the plate glass G of the moving table 26, and the front surface side substrate 28 is fixed to the regions on the front surface Ga and Gx side of the plate glass G of the moving table 26. There is.
  • the back surface side substrate 27 supports the back surface support member 5 and the base ends of the driving means 7 and 11 of the suction mechanism 9 at a predetermined height corresponding to the plate glass G.
  • the surface-side substrate 28 supports the base ends of the drive means 8 and 12 of the surface support member 6 and the push-in member 10 at a predetermined height corresponding to the plate glass G.
  • the operation unit 23 is composed of handles that can rotate on both the forward and reverse sides.
  • the operation unit 23 is arranged outside the cutting chamber R that cuts the flat glass G.
  • the power transmission unit 24 converts the rotational motion of the operation unit 23 into a straight motion along the width direction (reciprocating motion in the arrow B direction), and in this embodiment, the pair of timing pulleys 29 and 30 and A timing belt 31 spanned between the pair of timing pulleys 29 and 30 and a ball screw mechanism 32 are provided.
  • One timing pulley 29 is fixed to the operation unit 23 on the outside of the cutting chamber R and can rotate in the same direction (forward rotation or reverse rotation) with the rotation operation of the operation unit 23.
  • one timing pulley 29 is rotated, the rotation operation is transmitted by the timing belt 31, and the other timing pulley 30 is also rotated in the same direction as the rotation operation of the operation unit 23.
  • the ball screw mechanism 32 includes a screw shaft 33 extending in the width direction and a nut 34 fixed to the lower surface of the moving table 26 and meshing with the screw shaft 33.
  • the screw shaft 33 is supported by a bearing 35, and the rotation shaft of the timing pulley 30 is connected to one end of the screw shaft 33.
  • the moving table 26 moves to one side in the width direction (for example, the left side in the figure) by the dimension corresponding to the rotation amount, and when the operation unit 23 is reversed, the operation unit 23 is reversed.
  • the moving table 26 moves to the other side in the width direction (for example, the right side in the figure) by the dimension corresponding to the rotation amount.
  • the configuration of the operation unit 23 and the power transmission unit 24 is not particularly limited as long as the moving table 26 can be moved in the width direction from the outside of the cutting chamber R.
  • the operation unit 23 may be, for example, a servo motor or the like.
  • the power transmission unit 24 may be, for example, a rack and pinion mechanism or the like.
  • the position where the front surface support member 6 and the back surface support member 5 come into contact with the effective region G1 by the above-mentioned adjusting device 21, and the pushing member 10 and It is provided with an adjustment step of adjusting both the positions where the suction mechanism 9 comes into contact with the unnecessary region G2 in the width direction.
  • the front surface support member 6 and the back surface support member 5 are separated from the front surface Ga and the back surface Gb of the effective region G1, respectively, and the pushing member 10 and the suction mechanism 9 are also separated from the front surface Gx and the back surface Gy of the unnecessary region G2, respectively. is seperated.
  • each contact position adjusted in the adjustment step is an initial position where the surface support member 6 first contacts the front surface Ga of the effective region G1, and the back surface support member 5 is the back surface Gb of the effective region G1. It means the initial position where the pushing member 10 first contacts the front surface Gx of the unnecessary region G2, and the initial position where the suction mechanism 9 first contacts the back surface Gy of the unnecessary region G2.
  • the position of the moving table 26 in the width direction is adjusted by operating the operation unit 23. Since the front surface support member 6, the back surface support member 5, the pushing member 10, and the suction mechanism 9 are arranged on the moving table 26, when the position of the moving table 26 in the width direction is adjusted by the operation unit 23, the effective region G1 is provided. The contact positions of the front surface support member 6 and the back surface support member 5, and the contact positions of the pushing member 10 and the suction mechanism 9 with respect to the unnecessary region G2 are also adjusted in the width direction.
  • the contact positions of the front surface support member 6 and the back surface support member 5 with respect to the effective region G1 and the contact positions of the push member 10 and the suction mechanism 9 with respect to the unnecessary region G2 are optimally set according to the warp of the plate glass G. Can be set to position. As a result, when the plate glass G is cut, an appropriate bending stress can be applied to the formation region of the scribe line S, so that the occurrence of chipping, cracking, etc. can be suppressed.
  • the adjustment width in the width direction of the contact positions of the front surface support member 6 and the back surface support member 5 with respect to the effective region G1 and the contact positions of the push member 10 and the suction mechanism 9 with respect to the unnecessary region G2 is, for example, within 5 mm.
  • the operation unit 23 is provided on the outside of the cutting chamber R, the operator can perform the adjustment work from the outside of the cutting chamber R in the adjusting step. Therefore, it is not necessary to stop the supply of the flat glass G into the cutting chamber R even during the adjustment work. Therefore, since the cutting process of the flat glass G can be restarted immediately after the adjustment work is completed, the manufacturing efficiency of the flat glass G is improved.
  • both the contact positions of the front surface support member 6 and the back surface support member 5 with respect to the effective region G1 and the contact positions of the push member 10 and the suction mechanism 9 with respect to the unnecessary region G2 can be obtained. It can be adjusted in the width direction. That is, the adjustment work can be performed easily and quickly.
  • the adjustment step may be performed at a predetermined timing determined in advance, but in this embodiment, the adjustment step is performed when an abnormality is detected in the effective region G1 divided by the inspection step.
  • an abnormality of the effective region G1 in the inspection step for example, when there is chipping or cracking at the widthwise end portion of the effective region G1, the amount of foreign matter (glass powder P or the like) adhering to the surface of the effective region G1 is Cutting defects such as when the value exceeds a predetermined value can be mentioned. By doing so, the presence or absence of chipping, cracking, or the like is directly inspected in the inspection process, and the adjustment process is performed based on the result, so that the adjustment process can be reliably performed at a required time.
  • the inspection target in the inspection step may be the divided unnecessary region G2.
  • the adjustment of the contact positions of the front surface support member 6 and the back surface support member 5 with respect to the effective region G1 and the contact positions of the push member 10 and the suction mechanism 9 with respect to the unnecessary region G2 in the width direction is adjusted by the drive means 7, 8, respectively. It can also be done by 11 and 12. Specifically, each of the driving means 7, 8, 11 and 12 can be carried out by moving the back surface supporting member 5, the surface supporting member 6, the suction mechanism 9, and the pushing member 10 in the direction of arrow B. Therefore, in the above adjustment step, the drive means 7, 8, 11, 12 may be used instead of the adjustment device 21, or the adjustment device 21 and the drive means 7, 8, 11, 12 may be used in combination. May be good.
  • the drive means 7, 8, 11, and 12 are used, it is necessary to temporarily stop the supply of the flat glass G to the cutting chamber R because the operator enters the cutting chamber R to perform the adjustment step. Therefore, from the viewpoint of improving the production efficiency of the flat glass G, it is preferable that the adjusting step is performed from the outside of the cutting chamber R by using the adjusting device 21 described above.
  • the central region in the width direction is the effective region G1 and both sides in the width direction are unnecessary regions G2.
  • a scribe line S is formed at each of the two boundary portions between the effective region G1 and each unnecessary region G2.
  • the cutting of the flat glass G along the two scribe lines S is performed by the cutting device 1 arranged corresponding to each unnecessary region G2.
  • Both of these two splitting devices 1 are on the front surface support member 6 and the back surface support member 5 arranged on the front surface Ga side and the back surface Gb side of the effective region G1, respectively, and on the front surface Gx side and the back surface Gy side of the unnecessary region G2. It has a pushing member 10 and a suction mechanism 9 arranged respectively.
  • Both the pushing member 10 and the suction mechanism 9 are configured to rotate in the direction of arrow A.
  • the detailed configuration of the two breaking devices 1 is the same as that of the above-mentioned breaking device 1.
  • the cutting by the two cutting devices 1 may be performed at the same time, or the cutting by the other cutting device 1 may be performed after the cutting by the one cutting device 1 is completed.
  • the adjusting device 21 is also provided in each cutting device 1, and the adjusting step is performed for each cutting device 1.
  • one cutting device 1 and the other cutting device 1 are arranged at a distance longer than the length in the width direction of the flat glass G, and one unnecessary region G2 is provided by the one cutting device 1. After cutting and removing, the plate glass G may be moved in the width direction, and then the other unnecessary region G2 may be cut and removed by the other cutting device 1.
  • one unnecessary region G2 is divided and removed by the dividing device 1 as one, and then the flat glass G is rotated 180 degrees in a plan view, and then the other.
  • the unnecessary area G2 may be divided and removed by the dividing device 1.
  • the difference between the plate glass manufacturing apparatus and the manufacturing method according to the third embodiment from the first and second embodiments is the configuration of the adjusting device.
  • the adjusting device 41 has a first moving mechanism 42 in which the front surface supporting member 6 and the back surface supporting member 5 are arranged, and a second moving mechanism 42 in which the pushing member 10 and the suction mechanism 9 are arranged.
  • the power of the movement mechanism 43, the first operation unit 44 that operates the movement of the first movement mechanism 42, the second operation unit 45 that operates the movement of the second movement mechanism 43, and the first operation unit 44 is first moved. It includes a first power transmission unit 46 that transmits power to the mechanism 42, and a second power transmission unit 47 that transmits the power of the second operation unit 45 to the second movement mechanism 43.
  • the configuration for adjusting the positions of the front surface supporting member 6 and the back surface supporting member 5 in the width direction and the configuration for adjusting the positions of the pushing member 10 and the suction mechanism 9 in the width direction are different.
  • these two configurations are independent of each other.
  • the first moving mechanism 42 is fixed on a pair of first rails 48 extending in the width direction, a first moving table 49 movable in the width direction along the first rail 48, and the first moving table 49. It includes a first back surface side substrate 50 that supports the back surface support member 5, and a first front surface side substrate 51 that is fixed on the first moving table 49 and supports the surface support member 6. Specifically, the first rail 48 and the first moving table 49 are arranged below the plate glass G, and the first moving table 49 is arranged so as to straddle both the front and back sides of the plate glass G.
  • the first back surface side substrate 50 is fixed to the regions on the back surface Gb and Gy side of the plate glass G of the first moving table 49, and the first front surface side substrate 51 is the surface Ga of the plate glass G of the first moving table 49. It is fixed in the area on the Gx side.
  • the first back surface side substrate 50 supports the base end portion of the drive means 7 of the back surface support member 5 at a predetermined height corresponding to the plate glass G.
  • the first surface-side substrate 51 supports the base end portion of the driving means 8 of the surface support member 6 at a predetermined height corresponding to the plate glass G.
  • the second moving mechanism 43 is fixed on a pair of second rails 52 extending in the width direction, a second moving table 53 that can move in the width direction along the second rail 52, and the second moving table 53. It includes a second back surface side substrate 54 that supports the suction mechanism 9, and a second front surface side substrate 55 that is fixed on the second moving table 53 and supports the pushing member 10.
  • the second rail 52 and the second moving table 53 are arranged below the plate glass G, and the second moving table 53 is arranged so as to straddle both the front and back sides of the plate glass G.
  • the second back surface side substrate 54 is fixed to the regions on the back surface Gb and Gy side of the plate glass G of the second moving table 53, and the second front surface side substrate 55 is the surface Ga of the plate glass G of the second moving table 53. It is fixed in the area on the Gx side.
  • the second back surface side substrate 54 supports the base end portion of the driving means 11 of the suction mechanism 9 at a predetermined height corresponding to the plate glass G.
  • the second surface side substrate 55 supports the base end portion of the driving means 12 of the pushing member 10 at a predetermined height corresponding to the plate glass G.
  • the first operation unit 44 and the second operation unit 45 are composed of handles that can rotate on both the forward and reverse sides. Both operation units 44 and 45 are arranged outside the cutting chamber R for cutting the flat glass G.
  • the first power transmission unit 46 converts the rotational motion of the first operation unit 44 into a straight motion along the width direction (reciprocating motion in the arrow C direction), and in this embodiment, a pair of first timings.
  • a first timing belt 58 spanned between the pulleys 56 and 57, both timing pulleys 56 and 57, and a first ball screw mechanism 59 having a screw shaft 60 and a nut 61 are provided.
  • the screw shaft 60 extends in the width direction while being supported by the bearing 62, and the nut 61 is fixed to the lower surface of the first moving table 49 and meshed with the screw shaft 60.
  • the position in the width direction of the first moving table 49 is adjusted according to the rotation direction and the amount of rotation of the first operation unit 44.
  • the second power transmission unit 47 converts the rotational motion of the second operation unit 45 into a straight motion along the width direction (reciprocating motion in the arrow D direction), and in this embodiment, a pair of second timings.
  • a second timing belt 65 spanned between the pulleys 63 and 64, both timing pulleys 63 and 64, and a second ball screw mechanism 66 having a screw shaft 67 and a nut 68 are provided.
  • the screw shaft 67 extends in the width direction while being supported by the bearing 69, and the nut 68 is fixed to the lower surface of the second moving table 53 and meshed with the screw shaft 67.
  • the position in the width direction of the second moving table 53 is adjusted according to the rotation direction and the amount of rotation of the second operation unit 45.
  • the configurations of the first and second operation units 44, 45 and the first and second power transmission units 46, 47 are such that the first and second moving tables 49, 53 are oriented in the width direction from the outside of the cutting chamber R.
  • the configuration is not particularly limited as long as it can be moved.
  • the first moving table 49 of the first moving mechanism 42 is moved in the width direction by the operation of the first operating unit 44, whereby the surface with respect to the effective region G1 is moved.
  • the contact positions of the support member 6 and the back surface support member 5 are adjusted in the width direction.
  • the second moving table 53 of the second moving mechanism 43 by moving the second moving table 53 of the second moving mechanism 43 in the width direction by operating the second operating unit 45, the contact positions of the pushing member 10 and the suction mechanism 9 with respect to the unnecessary region G2 are adjusted in the width direction. do.
  • the contact positions of the front surface support member 6 and the back surface support member 5 with respect to the effective region G1 and the contact positions of the push member 10 and the suction mechanism 9 with respect to the unnecessary region G2 are determined by the first movement mechanism 42 and the second movement mechanism 43. Since it can be adjusted individually in the width direction, more precise adjustment is possible. In the adjustment step, only one of the first moving table 49 and the second moving table 53 may be moved in the width direction.
  • the present invention is not limited to the configuration of the above embodiment, and is not limited to the above-mentioned action and effect.
  • the present invention can be modified in various ways without departing from the gist of the present invention.
  • the adjustment step may be performed when the molding conditions are changed (for example, the plate thickness or the glass composition is changed).
  • the adjusting devices 21 and 41 may be arranged on the ceiling side of the cutting chamber R. That is, the front surface support member 6, the back surface support member 5, the push-in member 10, and the suction mechanism 9 may be suspended and supported from the ceiling via the adjusting devices 21 and 41.
  • the second region G2 is an unnecessary region having a selvage portion, but the second region G2 may be an unnecessary region having no selvage portion or an effective region (first region) to be a product. It may be an effective region having the same plate thickness as G1).
  • the support portion 3 includes the back surface support member 5 and the front surface support member 6
  • the support portion 3 has only the back surface support member 5 among the back surface support member 5 and the front surface support member 6. It may be provided with.
  • the external force applying portion 4 is the plate thickness of the plate glass G.
  • the flat glass G may be cut by moving straight in only the direction. In this case, the position of the external force applying portion 4 in the width direction is constant during the cutting.
  • the external force applying unit 4 includes the pushing member 10 and the suction mechanism 9 and causes the pushing force toward the back surface Gy side to act on the second region G2
  • a pulling member that exerts a pulling force toward the back surface Gy side may be provided in the second region G2.
  • the external force applying portion 4 includes only the suction mechanism 9 of the push-in member 10 and the suction mechanism 9, and the suction mechanism 9 causes the second region G2 to exert a pull-in force toward the back surface Gy side.
  • the configuration is mentioned.
  • the external force applying portion 4 moves the holding member to the back surface Gy side while the upper end portion and the lower end portion of the second region G2 are held by holding members such as gripping pieces, respectively. A force toward the back surface Gy side may be applied to the region G2.
  • the upper end portion of the first region G1 is held by the grip piece 2a of the grip mechanism 2, but instead of this, it may be held by another holding member such as a suction cup. good.
  • the method for forming the glass ribbon may be a forming method such as a float method, a rollout method, a slot down draw method, or a redraw method.
  • the cutting device and the method for manufacturing a flat glass of the present invention can also be applied to a flat glass without a warp.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mining & Mineral Resources (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

Procédé de production de verre à glace pour verre à glace G en position verticale, le verre à glace G comprenant une première région G1 et une seconde région G2 agencées de façon à être adjacentes dans le sens transversal, et une ligne de découpe S formée dans la partie limite des régions G1, G2, du côté des surfaces avant Ga, Gx respectives de celles-ci, le procédé comprenant une étape de découpe consistant à appliquer, sur la seconde région G2, une force dirigée vers le côté d'une surface arrière Gy au moyen d'une unité d'application de force externe 4 alors qu'une région de la première région G1 le long de la ligne de découpe S est en contact avec une unité de support 3 et supportée par celle-ci, ce qui permet de découper le verre à glace G le long de la ligne de découpe S. Comme étape préalable à l'étape de découpe, le procédé comprend une étape d'ajustement pour ajuster, dans le sens transversal, la position au niveau de laquelle l'unité de support 3 entre en contact avec la première région G1 et/ou la position au niveau de laquelle l'unité d'application de force externe 4 entre en contact avec la seconde région G2.
PCT/JP2021/037438 2020-12-18 2021-10-08 Procédé de production de verre à glace et dispositif de découpe WO2022130750A1 (fr)

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CN202180083323.XA CN116583388A (zh) 2020-12-18 2021-10-08 板玻璃的制造方法以及割断装置

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JP2020210535A JP2022097132A (ja) 2020-12-18 2020-12-18 板ガラスの製造方法及び割断装置
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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005162604A (ja) * 2003-11-12 2005-06-23 Nippon Electric Glass Co Ltd ガラス板の製造方法及びその装置
WO2015083530A1 (fr) * 2013-12-04 2015-06-11 旭硝子株式会社 Procédé et dispositif pour la fabrication de plaque de verre
WO2015098768A1 (fr) * 2013-12-25 2015-07-02 旭硝子株式会社 Procédé et appareil pour produire une plaque de verre
US20170174549A1 (en) * 2014-04-04 2017-06-22 Corning Incorporated Method and system for scoring glass sheet
WO2017104386A1 (fr) * 2015-12-15 2017-06-22 日本電気硝子株式会社 Procédé de fabrication et dispositif de fabrication pour une plaque de verre
WO2017110349A1 (fr) * 2015-12-21 2017-06-29 日本電気硝子株式会社 Dispositif de production d'une plaque de verre
WO2017199681A1 (fr) * 2016-05-18 2017-11-23 日本電気硝子株式会社 Procédé et dispositif de production de feuille de verre et dispositif de transport de feuille de verre
JP2017226549A (ja) * 2016-06-20 2017-12-28 日本電気硝子株式会社 板ガラスの製造方法及びその製造装置
WO2020217910A1 (fr) * 2019-04-22 2020-10-29 日本電気硝子株式会社 Dispositif de production de plaque de verre et procédé de production

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005162604A (ja) * 2003-11-12 2005-06-23 Nippon Electric Glass Co Ltd ガラス板の製造方法及びその装置
WO2015083530A1 (fr) * 2013-12-04 2015-06-11 旭硝子株式会社 Procédé et dispositif pour la fabrication de plaque de verre
WO2015098768A1 (fr) * 2013-12-25 2015-07-02 旭硝子株式会社 Procédé et appareil pour produire une plaque de verre
US20170174549A1 (en) * 2014-04-04 2017-06-22 Corning Incorporated Method and system for scoring glass sheet
WO2017104386A1 (fr) * 2015-12-15 2017-06-22 日本電気硝子株式会社 Procédé de fabrication et dispositif de fabrication pour une plaque de verre
WO2017110349A1 (fr) * 2015-12-21 2017-06-29 日本電気硝子株式会社 Dispositif de production d'une plaque de verre
WO2017199681A1 (fr) * 2016-05-18 2017-11-23 日本電気硝子株式会社 Procédé et dispositif de production de feuille de verre et dispositif de transport de feuille de verre
JP2017226549A (ja) * 2016-06-20 2017-12-28 日本電気硝子株式会社 板ガラスの製造方法及びその製造装置
WO2020217910A1 (fr) * 2019-04-22 2020-10-29 日本電気硝子株式会社 Dispositif de production de plaque de verre et procédé de production

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KR20230122051A (ko) 2023-08-22
CN116583388A (zh) 2023-08-11

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