WO2021106596A1 - ガラスロールの製造方法およびガラスフィルムの搬送方法 - Google Patents

ガラスロールの製造方法およびガラスフィルムの搬送方法 Download PDF

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Publication number
WO2021106596A1
WO2021106596A1 PCT/JP2020/042226 JP2020042226W WO2021106596A1 WO 2021106596 A1 WO2021106596 A1 WO 2021106596A1 JP 2020042226 W JP2020042226 W JP 2020042226W WO 2021106596 A1 WO2021106596 A1 WO 2021106596A1
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WO
WIPO (PCT)
Prior art keywords
roller
glass film
strip
rollers
shaped glass
Prior art date
Application number
PCT/JP2020/042226
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
陸 山城
森　弘樹
洋平 桐畑
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 CN202080068369.XA priority Critical patent/CN114450239A/zh
Priority to KR1020227008879A priority patent/KR20220109382A/ko
Publication of WO2021106596A1 publication Critical patent/WO2021106596A1/ja

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/02—Adaptations of individual rollers and supports therefor
    • B65G39/04—Adaptations of individual rollers and supports therefor the rollers comprising a number of roller forming elements mounted on a single axle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G39/00—Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors 
    • B65G39/10—Arrangements of rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
    • B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
    • B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
    • B65G49/063—Transporting devices for sheet glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/10—Advancing webs by a feed band against which web is held by fluid pressure, e.g. suction or air blast
    • 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
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
    • C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
    • C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors

Definitions

  • the present invention relates to a method for producing a strip-shaped glass film and a method for transporting the glass film.
  • a glass film which is a glass substrate thinned to a film shape (for example, a thickness of 300 ⁇ m or less), has been developed and manufactured.
  • the glass film manufacturing process usually includes a step of manufacturing a strip-shaped glass film which is the basis of the glass film manufacturing process.
  • Patent Document 1 discloses an example of a method for producing a strip-shaped glass film by using a down draw method typified by an overflow down draw method, a redraw method, a slot down draw method, and the like.
  • the method disclosed in the same document is a molding process in which a strip-shaped glass film is pulled out vertically downward by a molding apparatus and a roller conveyor arranged vertically below the molding apparatus to bend the strip-shaped glass film after molding.
  • the transport direction changing step of changing the transport direction from the lower side in the vertical direction to the horizontal direction
  • the strip-shaped glass film whose transport direction is changed are transported in the horizontal direction along the horizontal transport path.
  • a horizontal transfer step, a cutting and removing step of cutting and removing ineffective portions existing at both ends in the width direction from the strip-shaped glass film being transported in the lateral direction by a laser cutting device, and a strip-shaped glass film in which the ineffective portion is cut and removed are wound. It includes a winding process of winding the glass at the take-up section to make a glass roll.
  • the molded strip-shaped glass film may be inspected, especially the appearance inspection.
  • This inspection device has, for example, a configuration in which a light source is arranged on one of the front and back sides of the strip-shaped film, and an imaging device for photographing the surface of the glass film is arranged on the other side.
  • the end portion of the glass film having high flexibility may enter the gap between the rollers, and the glass film may be cracked by the subsequent transport operation.
  • the present invention made in view of the above circumstances has a technical problem of preventing cracking or breakage of the glass film during transportation in the lateral transportation unit, particularly immediately before the transition from the horizontal transportation unit to the winding unit. ..
  • the present invention which was devised to solve the above problems, forms a strip-shaped glass film, transports the molded strip-shaped glass film in the lateral direction by a lateral transport portion, and then winds the molded strip-shaped glass film into a roll shape by a winding portion.
  • a method for manufacturing a glass roll wherein a roller conveyor provided with a plurality of rollers is arranged in the lateral transport portion, and at least a region on the downstream side in the transport direction of the roller conveyor is covered with the plurality of rollers.
  • the roller units are provided at a plurality of locations along the conveying direction of the strip-shaped glass film, and the roller units are arranged in the width direction of the roller unit.
  • It is composed of a staggered roller conveyor in which rollers of other roller units adjacent to the roller unit are arranged so as to face the space between adjacent rollers in the transport direction, and the strip-shaped glass film is formed on the staggered roller conveyor. It is characterized by supplying it to the winding section.
  • the gap between the adjacent roller units becomes uneven in the transport direction. Therefore, it becomes difficult for the end portion of the strip-shaped glass film to enter the gap between the roller units. Therefore, it is possible to prevent the strip-shaped glass film from cracking immediately before the transition from the lateral transport portion to the take-up portion after the treatment of the glass film such as inspection is completed.
  • the area on the downstream side in the transport direction is composed of a belt conveyor, but this is not preferable because the transport line becomes long and the winding portion and the belt conveyor may interfere with each other.
  • the distance between the axes of the adjacent roller units is smaller than the diameter dimension of the rollers.
  • each roller enters the space between the adjacent rollers in the width direction of the other roller units, so that the width of the strip-shaped glass film extending in the width direction is increased between the adjacent roller units. No linear gaps (which greatly exceed) are formed. Therefore, it is possible to reliably prevent the strip-shaped glass film from entering the gap between the roller units.
  • the width of the gap facing the outer peripheral surface of each roller in the transport direction can be narrowed. Even if the end of the strip-shaped glass film tries to fall into the gap between the roller units, the end of the strip-shaped glass film rides on the spacer, so that the end of the glass film is further attached to the adjacent roller. It will run on and can return to the transport line without damaging the end of the strip-shaped glass film. Therefore, it is possible to reliably prevent the strip-shaped glass film from entering the gap between the roller units.
  • the ratio of the outer diameter dimension of the roller to the spacer is preferably 1.1 or more and 1.5 or less.
  • this ratio is less than 1.1, the amount of overlap between the rollers between adjacent roller units becomes small, so that the gap between the roller units is close to a straight line extending in the width direction, and as a result, the gap becomes The edges of the strip-shaped glass film can easily penetrate.
  • this ratio exceeds 1.5, the diameter of the spacer is reduced, so that when the end of the strip-shaped glass film falls into the gap between the spacer and the roller facing the spacer in the transport direction, the end is removed. It becomes difficult to get on the roller, and it becomes difficult to return the strip-shaped glass film to the transport line.
  • the axial length of the roller is shorter than the axial length of the spacer.
  • an inspection device for inspecting the strip-shaped glass film can be arranged in a region of the roller conveyor on the upstream side in the transport direction with respect to the staggered roller conveyor.
  • the inspection device By arranging the inspection device in the area upstream of the staggered roller conveyor in the transport direction in this way, it is possible to inspect the product at the final stage of the strip glass manufacturing process. Therefore, the defective rate of the glass roll can be reduced.
  • a light source is provided in the inspection device, and the gap between the rollers adjacent in the transport direction in the region upstream of the transport direction of the roller conveyor is used as a passage path for the light emitted from the light source. be able to.
  • a belt conveyor is used as a transport means in the inspection device, the light emitted from the light source of the inspection device is blocked by the belt, which makes it difficult to perform the inspection.
  • the gap between the rollers adjacent in the transport direction in the area upstream of the transport direction of the roller conveyor as a passage path for the light emitted from the light source of the inspection device, it is possible to perform inspection by the inspection device. Become.
  • the roller conveyor includes a roller unit in which a plurality of the rollers are arranged apart from each other in the width direction of the glass film, the roller units are arranged at a plurality of locations along the conveying direction of the glass film, and the rollers are arranged. It is characterized by being composed of a staggered roller conveyor in which rollers of other roller units adjacent to the roller unit are arranged so as to face the space between adjacent rollers in the width direction of the unit in the transport direction. ..
  • the horizontal transport unit When transporting a glass film (including a strip-shaped glass film as well as a single-wafered glass film) by a horizontal transport unit, there are cases where a part of the horizontal transport unit must be configured by a roller conveyor for some reason. In this case, as already described, the tip of the conveyed glass film may enter the gap between the rollers and cause the glass film to crack.
  • the roller conveyor With the staggered roller conveyor described above, the gap between the roller units has an uneven shape in the transport direction, so that the end portion of the glass film does not easily penetrate into the gap, and the glass film. Can be prevented from being damaged.
  • the present invention it is possible to prevent the glass film from being cracked or broken when the glass film is conveyed by the horizontal conveying portion.
  • the glass film manufacturing method includes a molding portion 2 that is molded while pulling out the strip-shaped glass film G downward in the vertical direction by a down-draw method, for example, an overflow down-draw method, and a molded strip.
  • a down-draw method for example, an overflow down-draw method
  • a molded strip By transporting the glass film G along a curved curved transport path, the transport direction changing portion 3 that changes the transport direction from the lower vertical direction to the horizontal direction and the strip-shaped glass film G whose transport direction is changed are laterally transported.
  • a strip-shaped glass film G composed of a lateral transport portion 4 that transports the non-effective portion G1 laterally along a path, a cutting-removing portion 5 that cuts and removes the ineffective portion G1 from the strip-shaped glass film G being transported in the lateral direction, and a strip-shaped glass film G consisting of only the effective portion. It has a winding section 6 for winding and producing a glass roll R.
  • the thickness of the strip-shaped glass film (effective portion) G from which the non-effective portion has been cut and removed is 300 ⁇ m or less, preferably 200 ⁇ m or less, and more preferably 100 ⁇ m or less.
  • the molding portion 2 includes a molded body 7 having a substantially wedge-shaped cross section having an overflow groove 7a formed at the upper end thereof, a cooling roller 8 arranged directly under the molded body 7 and sandwiching a ribbon-shaped molten glass Gb from both front and back sides. It is composed of an annealer 10 having an annealer roller 9 arranged directly below the cooling roller 8 and arranged in a plurality of stages in the vertical direction. More specifically, when focusing on the action of the molding portion 2, the main molding portion 2a causes the molten glass Ga overflowing from above the overflow groove 7a to flow down along both side surfaces and merges at the lower ends to form a ribbon shape.
  • the above-mentioned molding portion 2 is formed by disposing the annealing 10 for performing the strain-removing treatment on the strip-shaped glass film G below the main molding portion 2a.
  • a support roller 11 for sandwiching the strip-shaped glass film G from both the front and back sides is arranged below the annealer 10, and is provided between the support roller 11 and the cooling roller 8 or between the support roller 11 and one of the annealer rollers 9. A tension is applied between the strips to help thin the glass film G.
  • the strip-shaped glass film G is formed so as to have a thickness sufficient to impart flexibility.
  • the molded strip-shaped glass film G has an effective portion that exists in the center in the width direction (in the direction perpendicular to the paper surface in FIG. 1) and later becomes a product, and an effective portion that exists outside in the width direction with respect to the effective portion.
  • a pair of ineffective parts G1 to be removed are included. Further, in the non-effective portion G1, a portion located at the end portion in the width direction of the strip-shaped glass film G is formed with an ear portion having a thickness larger than that of the other portions.
  • a transport direction changing portion 3 that changes the transport direction of the strip-shaped glass film G from the vertical direction downward to the horizontal direction is provided.
  • a plurality of guide rollers 12 as guide members for guiding the direction change of the strip-shaped glass film G are arranged in a curved shape on the back surface side of the strip-shaped glass film G, and these guide rollers 12 are arranged in a curved shape. , It is in contact with the back surface of the strip-shaped glass film G.
  • the guide rollers 12 may support the strip-shaped glass film G in a non-contact manner by injecting an air flow or the like onto the back surface of the strip-shaped glass film G.
  • the guide member a member having a curved belt conveyor shape may be used, or the strip-shaped glass film G may be formed without disposing the guide member in the transport direction changing portion 3.
  • the direction may be changed without being affected by the external force from the back surface side.
  • some of the guide rollers 12 among the plurality of guide rollers 12 may be in contact with the back surface of the strip-shaped glass film G.
  • the guide roller 12 may support only a part of the strip-shaped glass film G (for example, both ends in the width direction).
  • a lateral transport unit 4 for laterally transporting the strip-shaped glass film G is provided on the downstream side of the transport direction changing portion 3 in the transport direction.
  • three belt conveyors 13a, 13b, and 13c are arranged in series in the transport direction, and a roller conveyor 15 and an inspection device 16 are further provided on the downstream side thereof.
  • the transport surfaces of the belt conveyors 13a, 13b and 13c and the transport surfaces of the roller conveyor 15 form a lateral transport path.
  • the main conveyor 13b As three belt conveyors arranged in series, the main conveyor 13b, the first conveyor 13a arranged on the upstream side of the main conveyor 13b, and the second conveyor arranged on the downstream side of the main conveyor 13b.
  • a conveyor 13c is used.
  • the lateral transport unit 4 is configured to transport the strip-shaped glass film G in the horizontal direction, but the transport direction is within a range of less than 45 ° up and down with respect to the horizontal direction (preferably, each of them is within 45 °). It may be tilted within a range of less than 30 °).
  • the first conveyor 13a can inject gas (for example, air) onto the back surface of the strip-shaped glass film G, and the strip-shaped glass film G is centered on the first conveyor 13a in the width direction (mainly an effective portion). ) Will be transported in a floating state.
  • the first conveyor 13a is arranged on the inner peripheral side of the endless belt 13aa for transporting the non-floating upper portion (mainly the ineffective portion) of the strip-shaped glass film G and the belt 13aa, and injects gas upward. It is equipped with a gas injector (not shown). A large number of fine through holes (not shown) are formed in the belt 13aa, and the gas injected from the gas injector reaches the back surface of the strip-shaped glass film G through the through holes.
  • gas injector not shown
  • the elastic sheet ribbon S1 made of foamed resin is superposed on the upper surface of the belt 13ba.
  • the upper surface of the sheet ribbon S1 serves as a transport support surface for transporting and supporting the strip-shaped glass film G.
  • a seat roll r1 formed by winding the seat ribbon S1 is provided below the main conveyor 13b, and the seat ribbon S1 pulled upward from the seat roll r1 is from the upstream end of the belt 13ba.
  • the belt 13ba is fed downward from the downstream end portion of the belt 13ba via the upper surface portion of the belt 13ba.
  • the seat ribbon S1 is attracted and held by negative pressure on the upper surface of the belt 13ba in a stretchable state.
  • the cut-removing portion 5 includes a laser irradiator 5aa that locally heats the boundary between the ineffective portion and the effective portion of the strip-shaped glass film G, and a refrigerant injector 5ab that cools the heated portion by the laser irradiator 5aa. And are provided.
  • the laser irradiator 5aa continuously irradiates the laser along the boundary between the effective portion and the ineffective portion of the strip-shaped glass film G that passes below the laser irradiator 5aa.
  • the refrigerant injector 5ab continuously injects a refrigerant (for example, mist-like water) onto the laser-irradiated portion of the strip-shaped glass film G.
  • the strip-shaped glass film G is cut by the laser cutting method, but the strip-shaped glass film G may be cut by the laser cutting method.
  • the strip-shaped glass film G from which the ineffective portion G1 has been cut and removed is transferred from the main conveyor 13b to the second conveyor 13c.
  • the ineffective portion G1 removed from the strip-shaped glass film G is separated from the lateral transport path downward without being transferred to the second conveyor 13c, and then discarded.
  • a stretchable sheet ribbon S2 made of foamed resin is superposed on the upper surface of the belt 13ca, and the upper surface of the sheet ribbon S2 constitutes a transport support surface for transporting and supporting the strip-shaped glass film G.
  • a sheet roll r2 formed by winding a sheet ribbon S2 is provided below the second conveyor 13c, and the sheet ribbon S2 taken out upward from the sheet roll r2 is an upstream end portion of the belt 13ca.
  • the conveyor belt 13ca is fed downward from the downstream end of the belt 13ca via the upper surface portion of the belt 13ca.
  • the seat ribbon S2 is not attracted and held on the upper surface of the belt 13ca.
  • a roller conveyor 15 is arranged at the end of the lateral transport unit 4.
  • the upstream area is composed of a general-purpose roller conveyor 15a that has been widely used so far, and the downstream area is a staggered roller conveyor in which rollers 152 (see FIG. 2) are arranged in a staggered pattern. It is composed of 15b.
  • an inspection device 16 is arranged at an intermediate portion in the transport direction of the general-purpose roller conveyor 15a. Details of the roller conveyor 15 and the inspection device 16 will be described later.
  • a winding portion 6 for producing a glass roll R by winding a strip-shaped glass film G from which the ineffective portion G1 has been removed in a roll shape around the winding core 6a is arranged.
  • the strip-shaped glass film G is wound by rotationally driving the winding core 6a in synchronization with the transport speeds of the conveyors 13a, 13b, 13c, and 15.
  • a sheet roll r formed by winding the protective sheet S is arranged below the winding portion 6, and the protective sheet S taken out from the sheet roll r is overlapped with the strip-shaped glass film G by the winding portion 6.
  • the glass roll R is manufactured by being wound up together with the strip-shaped glass film G. As described above, all the steps of the method for manufacturing the strip-shaped glass film G are completed.
  • each roller 151 has a uniform outer diameter dimension over the entire width direction of the strip-shaped glass film G. Further, the gap ⁇ of the roller 151 is formed in a straight line without unevenness along the width direction.
  • an inspection device 16 is arranged at an intermediate portion in the transport direction of the general-purpose roller conveyor 15a.
  • the inspection device 16 is, for example, a device that inspects the appearance of the strip-shaped glass film G.
  • a light source 16a for irradiating the strip-shaped glass film G with light and a light source 16a are arranged to face each other.
  • An inspection device 16 including an imaging means 16b such as a CCD camera is used.
  • the light source 16a is arranged above the strip-shaped glass film G and the imaging means 16b is arranged below the strip-shaped glass film G, but the vertical positional relationship between the light source 16a and the imaging means 16b is reversed. You may.
  • the gap ⁇ between the rollers serves as a passage path for light from the light source 16a.
  • the width of the gap between the rollers 151 in the general-purpose conveyor 15b is different between the imaging region by the inspection device 16 and other regions excluding the imaging region, and as shown in FIG. 1, the width of the gap ⁇ is different in the imaging region. It is slightly larger than the width of the gap in the area of. As a result, a sufficiently large imaging area can be secured, and it is possible to improve the accuracy of the inspection.
  • the width of the gap between the rollers in the photographing region can be reduced, and for example, the width of the gap ⁇ between all the rollers 151 can be made uniform.
  • a plurality of rollers 152 are coaxially arranged apart from each other in the width direction of the strip-shaped glass film G.
  • Spacers 153 are arranged between the rollers 152 separated in the width direction.
  • the outer diameter dimension D1 of the roller 152 is larger than the outer diameter dimension D2 of the spacer 153 (D1> D2).
  • the roller 152 is fixed to the shaft, but the spacer 153 can be rotated with respect to the shaft by fitting the spacer 153 to the outer peripheral surface of the shaft by gap fitting or by mounting the spacer 153 on the outer peripheral surface of the shaft via a bearing.
  • a roller unit 154 is composed of a roller 152 and a spacer 153 attached to a common shaft and the shaft.
  • the roller units 154 are arranged at a plurality of locations along the transport direction so as to be parallel to each other.
  • the roller conveyor 15 in which the spacer 153 is arranged between the rollers 152 is shown, but the spacer 153 can be omitted.
  • the spacer 153 a roller-shaped spacer 153 is exemplified, but a spherical spacer 153 can also be used.
  • the rollers 152 of other roller units adjacent to the roller unit 154 are arranged so as to face the space between the adjacent rollers 152 in the width direction in the transport direction of each roller unit 154. .. Specifically, the outer peripheral surface of each roller 152 faces the outer peripheral surface of the spacer 153 of the other roller unit 154 via a minute gap ⁇ .
  • the width of the gap ⁇ is smaller than the width of the gap ⁇ between the rollers 151 on the general-purpose roller conveyor 15a.
  • the inter-axis distance M between adjacent roller units 154 is smaller than the outer diameter dimension (diameter dimension) of the roller 152.
  • the axial dimension L1 of the roller 152 is preferably smaller than the axial dimension L2 of the spacer 153 (L1 ⁇ L2).
  • the ratio (D1 / D2) of the outer diameter dimension D1 of the roller 152 to the outer diameter dimension D2 of the spacer 153 is preferably 1.1 or more and 1.5 or less.
  • this ratio is less than 1.1, the amount of overlap between the rollers 152 between the adjacent roller units 154 becomes small, so that the gap between the adjacent roller units 154 becomes a form close to a straight line in the width direction, and the gap becomes the same.
  • the end portion of the strip-shaped glass film G easily penetrates into the strip.
  • the above ratio exceeds 1.5, the diameter of the spacer 153 becomes smaller, so that when the end portion of the strip-shaped glass film G falls into the gap between the spacer 153 and the roller 152 facing the spacer in the transport direction. , It becomes difficult for the end portion to ride on the roller 152, and it becomes difficult for the strip-shaped glass film G to return to the transport line.
  • FIG. 1 illustrates a case where the outer diameter dimension of the roller 151 of the general-purpose roller conveyor 15a and the outer diameter dimension of the roller 152 of the staggered roller conveyor 15b are equalized.
  • both rollers 151 and 152 are driven at the same rotation speed in order to make the transport speeds of both conveyors 15a and 15b equal.
  • the outer diameter of the roller 151 of the general-purpose roller conveyor 15a and the outer diameter of the roller 152 of the staggered roller conveyor 15b may be different, but in that case, both conveyors 15a and 15b have the same transport speed. Therefore, both rollers 151 and 152 need to be driven at different rotation speeds.
  • the entire roller conveyor 15'provided at the terminal portion of the lateral transport portion 4 is outside the general-purpose roller conveyor, that is, the roller 151', which has already been described. It is composed of a roller conveyor having a uniform diameter in the width direction of the strip-shaped glass film G.
  • the gap ⁇ 'between the rollers 151' is a linear shape extending over the entire width direction of the strip-shaped glass film G, as shown in FIG. 4B, when the strip-shaped glass film G is conveyed, the tip portion g thereof. Is easy to enter the gap ⁇ '.
  • the tip of the strip-shaped glass film G enters the gap ⁇ ', the strip-shaped glass film G will be cracked or damaged. Therefore, it is necessary to temporarily stop the production line to perform the restoration work, and the production efficiency of the strip-shaped glass film G. Decreases. In particular, when the strip-shaped glass film G is further thinned, the tip portion g is more likely to enter the gap ⁇ 'between the rollers 151', and this problem becomes more serious. Similar problems can occur even if the gap between the rollers 151'of the roller conveyor 15'is narrowed. This problem can be solved by replacing the roller conveyor 15'with a belt conveyor, but this makes it difficult for the inspection device 16 to inspect the product using the transmission of light.
  • the gap ⁇ between the roller units 154 becomes a bent form having irregularities in the transport direction. Therefore, it becomes difficult for the tip portion g of the strip-shaped glass film G to enter the gap, and the above-mentioned problem can be solved.
  • the inter-axis distance M of the adjacent roller units 154 is smaller than the diameter dimension D1 of the rollers 152 (M ⁇ D1), the outer peripheral surface of each roller 152 is the other roller unit 154. It enters the space between the adjacent rollers 152 in the width direction. Therefore, a long linear gap extending in the width direction (which greatly exceeds the width of the band-shaped glass film to be conveyed) is not formed between the adjacent roller units 154. Therefore, it is possible to reliably prevent the strip-shaped glass film from entering the gap between the roller units 154.
  • roller conveyor 15 that supplies the strip-shaped glass film G to the winding unit 6
  • only the downstream area is composed of the staggered roller conveyor 15b
  • the upstream area is composed of the general-purpose roller conveyor 15a.
  • the entire roller conveyor 15 is used by the staggered roller conveyor 15b. It can also be configured.
  • a part or all of the roller conveyor 15 that supplies the strip-shaped glass film G to the winding portion 6 is formed by the staggered roller conveyor 15b, and the glass roll R manufacturing apparatus (or strip-shaped) shown in FIG. 1 is formed.
  • a part or all of the roller conveyor is a staggered type described in the present embodiment. It can also be configured by a roller conveyor 15b.
  • a roller conveyor is transferred to the lateral conveyor.
  • a part or all of the roller conveyor may be configured by the staggered roller conveyor 15b described in the above embodiment.
  • the overflow down draw method is adopted for forming the strip-shaped glass film G, but instead of this, another down draw method such as the slot down draw method, the redraw method, or the like is adopted. Is also possible.
  • a method for forming the strip-shaped glass film G it is also possible to adopt a float method in which the strip-shaped glass film is pulled out from the float bath and transported by the lateral transport portion.
  • Roller conveyor 15a General-purpose roller conveyor 15b Staggered roller conveyor 16 Inspection device 16a Light source 16b Imaging means 151 Roller 152 Roller 153 Spacer 154 Roller unit D1 Roller outer diameter dimension D2 Sleeve outer diameter dimension L1 Roller axial dimension L2 Sleeve axial dimension G Band-shaped glass film M Roller unit axial distance R Glass roll

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Advancing Webs (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
PCT/JP2020/042226 2019-11-29 2020-11-12 ガラスロールの製造方法およびガラスフィルムの搬送方法 WO2021106596A1 (ja)

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KR1020227008879A KR20220109382A (ko) 2019-11-29 2020-11-12 유리 롤의 제조 방법 및 유리 필름의 반송 방법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023108354A (ja) * 2022-01-25 2023-08-04 中外炉工業株式会社 ワークの搬送装置

Citations (3)

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JPS6311534A (ja) * 1986-06-30 1988-01-19 Nippon Telegr & Teleph Corp <Ntt> 光フアイバ線引き用ジヤケツト管の製造方法
JP2004189443A (ja) * 2002-12-12 2004-07-08 Dainippon Printing Co Ltd 板材搬送装置
CN202245324U (zh) * 2011-09-19 2012-05-30 东旭集团有限公司 一种薄膜太阳能电池生产线上的玻璃基板输送装置

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Publication number Priority date Publication date Assignee Title
JPH0444598Y2 (ko) * 1986-07-07 1992-10-21
JP6108230B2 (ja) 2013-08-28 2017-04-05 日本電気硝子株式会社 ガラスフィルムリボン製造方法及びガラスフィルムリボン製造装置並びにガラスロール製造方法
JP6311534B2 (ja) 2014-08-26 2018-04-18 東洋インキＳｃホールディングス株式会社 グラビア印刷用水性印刷インキ組成物

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS6311534A (ja) * 1986-06-30 1988-01-19 Nippon Telegr & Teleph Corp <Ntt> 光フアイバ線引き用ジヤケツト管の製造方法
JP2004189443A (ja) * 2002-12-12 2004-07-08 Dainippon Printing Co Ltd 板材搬送装置
CN202245324U (zh) * 2011-09-19 2012-05-30 东旭集团有限公司 一种薄膜太阳能电池生产线上的玻璃基板输送装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2023108354A (ja) * 2022-01-25 2023-08-04 中外炉工業株式会社 ワークの搬送装置
JP7331165B2 (ja) 2022-01-25 2023-08-22 中外炉工業株式会社 ワークの搬送装置

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TW202122358A (zh) 2021-06-16

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