WO2015072488A1 - ガラス板の製造方法及びガラス板の製造装置 - Google Patents
ガラス板の製造方法及びガラス板の製造装置 Download PDFInfo
- Publication number
- WO2015072488A1 WO2015072488A1 PCT/JP2014/079974 JP2014079974W WO2015072488A1 WO 2015072488 A1 WO2015072488 A1 WO 2015072488A1 JP 2014079974 W JP2014079974 W JP 2014079974W WO 2015072488 A1 WO2015072488 A1 WO 2015072488A1
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- WIPO (PCT)
- Prior art keywords
- glass plate
- compressed gas
- main body
- ear
- cutting
- Prior art date
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Classifications
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- 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
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- 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
- B28D1/222—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 by pressing, e.g. presses
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0256—Gravity bending accelerated by applying mechanical forces, e.g. inertia, weights or local forces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B23/00—Re-forming shaped glass
- C03B23/02—Re-forming glass sheets
- C03B23/023—Re-forming glass sheets by bending
- C03B23/025—Re-forming glass sheets by bending by gravity
- C03B23/0258—Gravity bending involving applying local or additional heating, cooling or insulating means
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/10—Glass-cutting tools, e.g. scoring tools
- C03B33/105—Details of cutting or scoring means, e.g. tips
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
Definitions
- the present invention relates to a glass plate manufacturing method and a glass plate manufacturing apparatus.
- the float method is known as one of the glass plate manufacturing methods.
- the float process is a manufacturing method in which molten glass is poured onto tin in a molten tin bath, the molten glass is spread on tin, and formed into a strip-shaped glass plate (glass ribbon).
- the glass ribbon formed in the molten tin bath is drawn out to a layer (slow cooling section) through a layer roll, cooled to a predetermined temperature by the layer, and then conveyed to a cutting device by a conveying means such as a roller conveyor. And it cut
- a glass ribbon manufactured by a glass manufacturing method using a float process has ears that do not become products located at both ends in the flow direction, and these ears are separated and removed online.
- Patent Document 2 describes a device that divides and breaks a glass plate processed with a longitudinal cutting line between a supporting roller and a press-splitting roller as a cutting device that separates the ears from the glass plate.
- Such a thin glass plate as in Patent Document 2, can be appropriately applied bending stress to the glass plate by a method of mechanically folding the glass plate between the supporting roller and the split roller. In some cases, the glass plate cannot be folded along the vertical cut line.
- such a thin glass plate has a problem that it is difficult to put the glass plate between the supporting roller and the split roller because the ear portion is bent by its own weight.
- the glass plate is folded if the position of each roller and the position of the vertical cutting line are not accurately aligned. There is also a drawback that cannot be done.
- the method of mechanically folding the glass plate between the supporting roller and the split roller has a limitation in processing speed and has a drawback that it is difficult to increase the processing speed.
- the present invention has been made in view of such circumstances, and a glass plate manufacturing method and a glass plate capable of reliably cutting the ears of the glass plate and speeding up the cutting process.
- An object of the present invention is to provide a manufacturing apparatus.
- the means for solving the problem are as follows.
- the first aspect is a glass plate having a portion that becomes a main body portion and a portion that becomes an ear portion, and processes a planned cutting line along a line to be cut at a boundary between the main body portion and the ear portion, and the glass plate
- the manufacturing method of a glass plate including the step of cutting the main body portion and the ear portion of the glass plate by separating along the planned cutting line, and separating the ear portion from the main body portion
- a method for producing a glass plate comprising: blowing a compressed gas to a glass plate on which a planned cutting line is processed, and cutting the main body portion and the ear portion by folding the glass plate along the planned cutting line.
- the glass plate is bent along the planned cutting line due to the bending stress acting when the compressed gas is blown.
- the bending stress effectively acts on the position of the planned cutting line, so that the glass plate can be reliably folded along the planned cutting line.
- a processing speed can be improved.
- the second mode is a mode in which, in the first method for manufacturing a glass plate, a compressed gas is sprayed on the ear portion, and the glass plate is folded along a planned cutting line.
- the compressed gas is sprayed on the ears of the glass plate.
- bending stress can be made to act on a glass plate efficiently.
- the third aspect is an aspect in which, in the glass plate manufacturing method according to the first or second aspect, the main body is pressed against the main body support by spraying compressed gas onto the main body.
- compressed gas is sprayed on the main body of the glass plate.
- a main-body part is pressed on a main-body part support part, and a bending stress can be made to act on a glass plate efficiently in the stable state.
- the fourth aspect is an aspect in which compressed gas is uniformly blown against the glass plate in the method for producing a glass plate according to any one of the first to third aspects.
- the glass plate is sprayed with the compressed gas while the glass plate and the injection position of the compressed gas are moved relative to each other. It is the aspect which folds along a cutting projected line.
- the compressed gas is sprayed while the glass plate and the injection position of the compressed gas move relatively.
- compressed gas is sprayed onto a glass plate being conveyed by a conveyor or the like.
- the compressed gas is intermittently blown from a fixed position onto the glass plate that is continuously conveyed at a constant interval, and the glass plate is cut. It is the aspect which folds along.
- the compressed gas is intermittently blown from a certain position to the glass plate continuously conveyed at a certain interval.
- the glass plate conveyed continuously can be processed continuously.
- compressed gas can be sprayed only when it is necessary after crossing or folding the ear
- “intermittent” includes the concept of strength and weakness, and may include a state in which the compressed gas does not completely stop ejecting. That is, in addition to a mode in which ON and OFF are repeated at a constant cycle, a mode in which strong and weak are repeated at a fixed cycle is included.
- the seventh aspect is an aspect in which, in the glass plate manufacturing method of the sixth aspect, a plurality of compressed gas jetting means are provided, and the compressed gas jetting means are synchronized and intermittently sprayed with the compressed gas jetting means.
- the compressed gas can be sprayed uniformly and efficiently by synchronizing the plurality of compressed gas ejection means.
- the eighth aspect is the glass plate manufacturing method according to any one of the first to seventh aspects, wherein the glass plate has a thickness t of 0.01 mm ⁇ t ⁇ 1.00 mm.
- a glass plate having a plate thickness t of 0.01 mm ⁇ t ⁇ 1.00 mm is a processing target.
- the manufacturing method of the glass plate of the said 1st-7th aspect acts especially effectively when processing such a thin glass plate.
- the ninth aspect is a glass plate cutting device, wherein the cutting device has at least a portion of a cutting line scheduled to be cut along a line to be cut at the boundary between the main body portion and the ear portion of the glass plate.
- the glass plate is folded along a planned cutting line to cut the main body portion and the ear portion of the glass plate, and includes a glass plate ear folding device that separates the ear portion from the main body portion,
- the ear fold device comprises a glass plate cutting device characterized by comprising compressed gas jetting means for jetting compressed gas onto a glass plate on which a planned cutting line has been processed to cut the glass plate. It is a board manufacturing apparatus.
- the compressed gas injecting means for injecting the compressed gas is provided, the compressed gas injected from the compressed gas injecting means is sprayed on the glass plate, and the glass plate is folded along the planned cutting line. .
- the compressed gas injection means includes a first injection unit that sprays the compressed gas to at least the ear part. is there.
- the compressed gas is sprayed on the ears of the glass plate.
- bending stress can be made to act on a glass plate efficiently.
- the compressed gas injection means blows at least the main body portion with the compressed gas, and the main body portion is moved to the main body portion. It is an aspect further equipped with the 2nd injection part pressed against a support part.
- compressed gas is sprayed on the main body of the glass plate.
- a glass plate is pressed against a main-body part support part, and a bending stress can be made to act on a glass plate efficiently.
- the glass plate manufacturing apparatus further includes a transport unit that transports the glass plate, and the compressed gas injection unit is transported. This is a mode in which compressed gas is injected from a fixed position onto the glass plate conveyed by the means.
- the compressed gas is blown onto the glass plate being conveyed by the conveying means.
- a glass plate can be cut
- the conveying means conveys the glass plate continuously at regular intervals
- the compressed gas injection means conveys It is an aspect further provided with a control means which injects compressed gas intermittently from a fixed position with respect to the glass plate conveyed by the means.
- the compressed gas is intermittently blown from a certain position to the glass plate continuously conveyed at a certain interval.
- the glass plate conveyed continuously can be processed continuously.
- the ears of the glass plate can be reliably cut, and the cutting process can be speeded up.
- a preferred embodiment for carrying out the present invention will be described in detail by taking a glass plate manufacturing apparatus by a float method as an example, but the present invention is not limited thereto, and is applied to a known glass plate manufacturing method and apparatus. Is possible.
- a manufacturing method of inorganic glass it can be suitably applied to a molding method using a glass ribbon (that is, a strip-shaped glass plate), and a float method, a down draw method, a fusion method, a slot down method, a redraw method, a roll molding method. Examples thereof include a roll-out method and a pull-up method.
- it is applicable also to the glass film roll which wound up the glass plate manufactured by these methods in roll shape, the sheet glass plate cut out into the rectangle, especially an ultra-thin glass plate (glass film).
- FIG. 9 is a plan view showing an example of a glass ribbon cutting device in a glass plate manufacturing apparatus by a float process.
- the cutting device 1 cuts a glass ribbon G0 continuously conveyed as indicated by an arrow in a direction orthogonal to the longitudinal direction (that is, the conveying direction) to form a single glass plate G1, and the single-wall glass plate G1 has an ear.
- the portion G2 is cut into a glass plate as a product or an intermediate product (hereinafter, a portion cut out as a product or an intermediate product from the glass plate in the manufacturing process before the cutting of the ear portion is referred to as a main body portion (G3)).
- G3 main body portion
- the “ear part” of the glass plate refers to the edge portions on both sides in the width direction of the glass plate cut out from the glass ribbon, and is a part that does not become a product or an intermediate product.
- the cutting device 1 puts the glass plate G0 at the boundary between the cutting line (vertical cutting line: the cutting edge line G2 and the main body part G3) for separating the glass plate G0 into the cutting part G2 and the main body part G3. Scribing line) Vertical cutting planned line processing device 2 for processing L1, and a cutting planned line for cutting out a sheet glass plate G1 from the glass ribbon G0 (horizontal cutting planned line: put on the boundary between the front and rear glass plates G1.
- Horizontal cutting planned line processing device 3 for processing L2, horizontal folding device 4 that folds glass ribbon G0 along horizontal cutting planned line L2 to form a single glass plate G1, and single glass plate G1 And a pair of ear folding devices 10 for separating the ears G2 on both sides from the main body G3.
- the glass ribbon G0 continuously conveyed by a conveying means (not shown) such as a roller conveyor is first processed in the vertical cutting planned line L1 by the vertical cutting planned line processing apparatus 2, and then in the horizontal cutting planned line processing apparatus 3.
- the horizontal cutting line L2 is processed.
- the cutting planned line (vertical cutting planned line L1 and horizontal cutting planned line L2) for cutting out the main-body part G3 is processed into the glass ribbon G0.
- the planned cutting lines L1 and L2 can be processed with, for example, a diamond wheel cutter. Further, the planned cutting lines L1 and L2 can be processed by other known methods. For example, a diamond cutter or laser processing can be suitably used.
- the glass ribbon G0 in which the vertical cutting planned line L1 and the horizontal cutting planned line L2 are processed is then folded along the horizontal cutting planned line L2 by the horizontal folding device 4. Thereby, the sheet glass plate G1 is cut out from the glass ribbon G0.
- the single glass plate G1 cut out from the glass ribbon G0 is further transported to the ear folding device 10 by transport means (not shown) such as a roller conveyor. Then, the ear folding device 10 folds along the planned vertical cutting line L1, cuts the ears G2 on both sides and the main body G3, and separates the ears G2 on both sides from the main body G3. Thereby, the main-body part G3 of the glass plate as a product or an intermediate product is obtained.
- FIG. 1 and FIG. 2 are a plan view and a front view, respectively, showing an embodiment of an ear fold device in a glass sheet cutting device according to the glass manufacturing apparatus of the present invention.
- the ear folding device 10 folds the ear portion G2 of the single glass plate G1 cut out from the glass ribbon manufactured by the glass manufacturing method by the float method, and the ear portion G2 and the main body portion on both sides. It is configured as a device that cuts G3 and separates the main body G3 and the ear G2. As shown in FIG. 9, the ear folding device 10 is configured as a part of a cutting device that cuts a glass ribbon that is continuously conveyed and processes it into a glass plate of a desired size in a series of glass plate manufacturing devices. Is done.
- edge part G2 and the main-body part G3 is processed into the glass plate G1 supplied to the ear
- the ear folding device 10 is configured as a pair for folding the ear portions G2 on both sides of the glass plate G1.
- the glass plate G1 is preferably a glass plate having a thickness t of 0.01 mm ⁇ t ⁇ 1.00 mm.
- a glass plate of 0.7 mm or less which is difficult to separate the ears of the glass plate on which the planned cutting line is processed, can be further preferably processed, and the conveyance speed of the glass ribbon can be increased during online glass forming.
- the ear folding device 10 mainly includes a roller conveyor (conveying means) 20 that conveys the glass plate G ⁇ b> 1 and ears on both sides of the glass plate G ⁇ b> 1 that is conveyed by the roller conveyor 20.
- the first injection unit 30 as a compressed gas injection unit that injects compressed gas (typically compressed air) toward the part G2, and the main body part G3 of the glass plate G1 that is also conveyed by the roller conveyor 20.
- a second injection unit 50 as compressed gas injection means for injecting compressed air.
- the roller conveyor described above corresponds to a main body support portion that supports the main body portion of the glass plate when the compressed gas is sprayed onto the main body portion of the glass plate, and the compressed gas is sprayed from above the main body portion.
- the main body of the glass plate is pressed against the main body support.
- the roller conveyor 20 as a conveying means in the present invention places the glass plate G1 on the rollers 22 arranged at a constant pitch, and horizontally conveys the glass plate G1.
- the roller 22 is rotatably supported by a frame (not shown) and is driven to rotate by a rotation driving unit (not shown).
- the glass plate G1 is transported horizontally with the main body G3 placed on the roller 22.
- the glass plate G1 to be processed by the ear fold device 10 is a thin glass plate having a thickness t of 1 mm or less. For this reason, when the main body G3 is placed on the roller 22 and conveyed, as shown in FIG. 2, the glass plate G1 is in a state where the ears G2 on both sides hang down from both sides of the roller conveyor 20. Be transported. In FIG. 2, the state in which the ears G2 on both sides hang down is exaggerated.
- the 1st injection part ie, the 1st injection part 30, injects compressed air toward the ear
- the first injection unit 30 includes a plurality of compressed gas injection means 32 (for example, air nozzles), and each air nozzle 32 is synchronized with the compressed air to the ear part G2 of the glass plate G1. Inject.
- the air nozzles 32 are arranged at a constant pitch along the conveying direction of the glass plate G1, and are arranged so as to inject compressed air in a direction orthogonal to the conveying direction of the glass plate G1.
- the glass plate G1 is conveyed in a state where the ear portion G2 is hung from both sides of the roller conveyor 20.
- the air nozzle 32 is arrange
- FIG. Specifically, the jet outlet 32 ⁇ / b> A is arranged so as to face the end face of the roller 22 so that the compressed air is jetted toward the end face of the roller 22.
- the air nozzles 32 are attached to the common supply pipe 34 and arranged on the same straight line at a constant pitch.
- the number of installed air nozzles 32 is appropriately set according to the length of the glass plate G1 to be processed (that is, the length in the direction along the transport direction). That is, the entire length is set to be substantially the same as the length of the glass plate G1 to be processed.
- the compressed gas jetting means such as the air nozzle 32 may be configured so that the compressed air is uniformly blown against the glass plate G1, and the number and arrangement thereof can be changed as appropriate, such as a pipe shape or a slit. An air nozzle connected in a shape may be used.
- the air nozzle 32 has a length from the upstream end to the downstream end in the conveyance direction of the glass plate (when a plurality of air nozzles 32 are installed, from the upstream end in the conveyance direction of the glass plate of the plurality of air nozzles 32).
- the length L to the downstream end) is preferably 80% or more of the length of the longitudinal cutting planned line L1, and more preferably 95% or more.
- Position is preferably located closer to the end than 1/5 from the upstream / downstream end of the longitudinal cutting planned line L1, and more preferably located closer to the end than 1/10.
- the length of the air nozzle 32 in the transport direction is preferably 10 mm to 1000 mm, more preferably 20 mm to 300 mm, and even more preferably 30 mm to 100 mm.
- the several air nozzle 32 it is preferable to arrange
- the interval (pitch) between the adjacent air nozzles 32 can be set as appropriate, and is not necessarily a constant pitch. In this example, it is installed according to the interval of the rollers 22 constituting the roller conveyor 20. For this reason, it becomes easy to install the supply piping and to easily adjust the pressure of the compressed air.
- the common supply pipe 34 is composed of a straight circular pipe, and is provided with nozzle connection portions 34A at a constant pitch along the axial direction. Each air nozzle 32 is connected to the nozzle connection portion 34 ⁇ / b> A and attached to the common supply pipe 34.
- the air supply port 34B is provided at both ends of the common supply pipe 34.
- a first air supply tube 38 connected to a compressed air source 36 that supplies compressed air is connected to each air supply port 34B.
- the first air supply tube 38 is configured such that the tip is branched, and the branched tip is connected to the air supply ports 34 ⁇ / b> B at both ends of the common supply pipe 34.
- the first air supply tube 38 is provided with a first electromagnetic valve 40.
- the opening and closing of the first electromagnetic valve 40 is controlled by the control device 42.
- the control device 42 When the first electromagnetic valve 40 is opened, compressed air is supplied to the common supply pipe 34, and compressed air is injected from each air nozzle 32. Further, when the first electromagnetic valve 40 is closed, the injection of compressed air is stopped.
- the glass plate G1 When the compressed air is blown onto the ear part G2 by the first injection unit 30, the glass plate G1 is subjected to a bending stress between the main body part G3 and the ear part G2, and along the planned vertical cutting line L1. Folded.
- the air nozzle 32 is provided so as to be movable back and forth in a direction orthogonal to the conveying direction of the glass plate G1, and is provided so that the position of the jet port 32A relative to the glass plate G1 can be adjusted. This position adjustment mechanism will be described in detail later.
- the second injection unit that is, the second injection unit 50 injects a compressed gas (typically, compressed air) vertically from above the glass plate G1 toward the main body G3 of the glass plate G1.
- a compressed gas typically, compressed air
- the second injection unit 50 includes a rod-like air injection tube 52, and injects compressed air from a plurality of injection ports 52A provided in the air injection tube 52 toward the main body G3 of the glass plate G1.
- the air injection pipe 52 is a straight square pipe.
- the air injection pipe 52 is disposed at a predetermined height from the transport surface of the roller conveyor 20 and is disposed horizontally along the transport direction of the glass plate G1. Moreover, it arrange
- the surface (lower surface) facing the roller conveyor 20 of the air jet pipe 52 is provided with a plurality of jet outlets 52A.
- the jet ports 52A are arranged at a constant pitch along the axial direction of the air jet pipe 52.
- the length of the air injection tube 52 is appropriately set according to the length of the glass plate G1 to be processed (that is, the length in the direction along the transport direction). That is, it is set to be substantially the same as the length of the glass plate G1 to be processed.
- An air supply port 52B is provided on the back surface of the air injection pipe 52.
- a second air supply tube 54 connected to a compressed air source 36 that supplies compressed air is connected to the air supply port 52B.
- the second air supply tube 54 is provided with a second electromagnetic valve 56.
- the opening and closing of the second electromagnetic valve 56 is controlled by the control device 42.
- the second electromagnetic valve 56 is opened, compressed air is supplied to the air injection pipe 52, and the compressed air is injected from the outlet 52A.
- the 2nd solenoid valve 56 is closed, injection of compressed air is stopped.
- the glass plate G1 is pressed against the roller conveyor 20 functioning as a main body support portion by the compressed air being blown onto the main body portion G3 by the second injection unit 50. Thereby, the ear folding operation by the first injection unit 30 is stably performed.
- the air injection pipe 52 is provided so as to be horizontally movable in a direction orthogonal to the conveying direction of the glass plate G1, and is provided so that the compressed air injection position with respect to the glass plate G1 can be adjusted. That is, it is provided so that position adjustment is possible in the width direction of glass plate G1 (that is, the direction orthogonal to the conveyance direction of glass plate G1).
- 3, 4, and 5 are a plan view, a front view, and a side view, respectively, showing an example of an air nozzle and an air injection pipe position adjustment mechanism.
- the installation positions of the air nozzle 32 and the air injection pipe 52 are adjusted by the position adjustment mechanism 60.
- the position adjustment mechanism 60 mainly includes a base 62, a first movement table 64 provided movably on the base 62, a first feed mechanism 66 that moves the first movement table 64, and a column provided in the first movement table 64. 68, a beam 70 provided in the column 68, a second moving table 72 provided movably on the beam 70, and a second feed mechanism 74 that moves the second moving table 72.
- the base 62 includes a plate-like support 62A and is fixedly installed at a fixed position.
- the support portion 62A is provided with a pair of first guide rails 76.
- a pair of 1st guide rail 76 is horizontally arrange
- the first moving table 64 is movably provided on the first guide rail 76 via a slider 78.
- the first feed mechanism 66 is mainly composed of a screw rod 66A and a nut 66B.
- the screw rod 66 ⁇ / b> A is disposed along the first guide rail 76.
- the tip of the screw rod 66A is connected to the column 68 via the universal joint 80.
- a first knob 66a is provided at the rear end of the screw rod 66A.
- the nut 66 ⁇ / b> B is horizontally installed on the base 62 via the bracket 82.
- the screw rod 66A is screwed into the nut 66B.
- the first knob 66a is turned to rotate the screw rod 66A, the screw rod 66A moves back and forth with respect to the nut 66B fixed to the base 62.
- the first moving table 64 on which the column 68 is installed moves along the first guide rail 76.
- the column 68 has a plate shape and is erected vertically on the first moving table 64.
- the column 68 is provided with a pair of arms 84.
- the common supply pipe 34 to which each air nozzle 32 is attached is supported by the arm 84 and attached to the column 68.
- Beam 70 is provided at the top of column 68.
- the beam 70 has a plate shape and is installed horizontally on the top of the column 68.
- the beam 70 is provided with a pair of second guide rails 86.
- a pair of 2nd guide rail 86 is horizontally arrange
- the second moving table 72 is movably provided on the second guide rail 86 via a slider 88.
- the air injection pipe 52 is attached to the second moving table 72.
- the second feed mechanism 74 is mainly composed of a screw rod 74A and a nut 74B.
- the screw rod 74 ⁇ / b> A is rotatably supported by a bearing 90 provided in the column 68, and is disposed horizontally along the second guide rail 86.
- a second knob 74a is provided at the base end of the screw rod 74A.
- the nut 74 ⁇ / b> B is provided on the second moving table 72.
- the screw rod 74A is screwed into the nut 74B, and when the screw rod 74A is rotated, the nut 74B moves back and forth along the screw rod 74A. As a result, the second moving table 72 moves along the second guide rail 86.
- the position adjusting mechanism 60 configured as described above, when the first knob 66a is turned, the first moving table 64 moves horizontally in a direction orthogonal to the conveying direction of the glass plate G1. As a result, the air nozzle 32 and the air injection pipe 52 move horizontally at the same time, and their positions are adjusted. Moreover, when the 2nd knob 74a is turned, the 2nd movement table 72 will move horizontally in the direction orthogonal to the conveyance direction of the glass plate G1. As a result, the air injection pipe 52 moves horizontally as a single unit, and its position is adjusted.
- the ear folding device 10 is configured as a part of a cutting device (see FIG. 9) that cuts a glass ribbon that is continuously conveyed and processes the glass ribbon into a glass plate (main body portion G3) of a desired size.
- edge part G2 and the main-body part G3 is processed into the glass plate G1 to process beforehand.
- the single-piece glass plate G1 cut out from the glass ribbon is sequentially conveyed to the ear folding device 10 by the roller conveyor 20.
- the glass plate G ⁇ b> 1 is conveyed in a state where the main body G ⁇ b> 3 is placed on the roller 22.
- the glass plate G ⁇ b> 1 is conveyed in a state in which the ear portions G ⁇ b> 2 on both sides hang down from both sides of the roller conveyor 20.
- the ear folding device 10 is always injected with compressed air from the air injection pipe 52 during operation. For this reason, when the glass plate G1 is conveyed to the installation position of the ear folding device 10, the compressed air injected from the air injection pipe 52 is blown onto the upper surface of the edge of the main body G3. The glass plate G1 is pressed against the roller conveyor 20 in which the main body portion G3 serves as a main body portion support portion by the compressed air injected from the air injection pipe 52. As a result, when the compressed air is blown against the ear G2, the bending stress can be applied stably, and the ear G2 can be folded more efficiently.
- Compressed air is ejected from the air nozzle 32 when the glass plate G1 is conveyed to a predetermined ear folding position.
- the ear folding position is set such that the entire ear portion G2 of the glass plate G1 faces the air nozzle 32.
- the center of the glass plate G1 and the entire center of the air nozzle 32 are glass. It is set at a substantially coincident position in the conveying direction of the plate G1.
- the position of the glass plate G1 is detected based on information from the roller conveyor 20, for example. That is, since the conveyance speed of the roller conveyor 20 is known, the position of the glass plate G1 is detected based on the conveyance speed of the roller conveyor 20 and the like.
- Compressed air sprayed from the air nozzle 32 is blown against the ear part G2 of the glass plate G1. Thereby, a bending stress acts between the ear
- the compressed air is injected during the conveyance of the glass plate G1, and is continuously injected for a predetermined time.
- the pressure, speed, etc., of the compressed air sprayed on the ear part G2 of the glass plate G1 are appropriately folded by applying a predetermined bending stress to the ear part G2 depending on the type and thickness of the glass plate to be processed. It is set as appropriate so that the work is performed.
- the main body part G3 from which the ear part G2 is separated is conveyed as it is to a predetermined storage part (branch) by the roller conveyor 20, and is stored one by one on a pallet or the like.
- the ear folding device 10 injects compressed air from the air nozzle 32 every time the glass plate G1 is conveyed to the ear folding position. . That is, the compressed air is intermittently ejected in accordance with the conveyance interval of the glass plate G1. Thereby, the glass plate G1 of the sheet
- the ear portion G2 is folded in a non-contact manner, the main body portion G3 and the ear portion G2 of the glass plate G1 are cut, and the glass plate G1 The ear part G2 is separated from the main body part G3. Thereby, even if it is the thin glass plate G1 whose plate
- the ear part G2 since the ear part G2 is folded without contact using compressed air, the ear part G2 can be reliably folded even if the position of the longitudinal cutting planned line L1 is not stable.
- the ear part G2 is folded in a non-contact manner using compressed air, it can be processed at high speed and the processing speed can be improved.
- Air nozzle support structure> 6 and 7 are a front view and a side view, respectively, showing another example of the air nozzle support structure.
- the air nozzle 32 of this example is configured so that the injection direction can be adjusted.
- the air nozzle 32 is provided so that the injection direction can be adjusted by supporting the common supply pipe 34 so as to be movable up and down and swingable.
- the common supply pipe 34 is provided with screw portions 34 ⁇ / b> C at both ends, and the screw portions 34 ⁇ / b> C are supported by a bracket 92 provided on the arm 84.
- the bracket 92 has a long hole 92A extending in the vertical direction (that is, a direction orthogonal to the conveying surface of the glass plate G1 by the roller conveyor 20), and a threaded portion 34C is passed through the long hole 92A, so that the common supply pipe 34 is provided. Is supported by the bracket 92 so as to be vertically movable and swingable.
- a fixing nut 94 is screwed into the screw portion 34 ⁇ / b> C passed through the elongated hole 92 ⁇ / b> A, and the common supply pipe 34 is fixed to the bracket 92 by tightening the fixing nut 94.
- the vertical position of the air nozzle 32 is adjusted by moving the common supply pipe 34 up and down along the elongated hole 92A. Further, the air nozzle 32 swings in the vertical direction by rotating the common supply pipe 34 around the screw portion 34C, and thereby the injection direction is adjusted.
- the air nozzle 32 by supporting the air nozzle 32 so as to be movable up and down and swingable, the position and direction in which the compressed air is blown against the glass plate G1 can be finely adjusted, and the glass plate G1 can be more appropriately adjusted. Bending stress can be applied to the.
- the air nozzle 32 is configured to support the air nozzle 32 so as to be movable up and down and swingable.
- the plurality of air nozzles 32 are moved up and down or rocked together, but may be individually moved up and down.
- the air injection tube 52 can be supported so as to be vertically movable and / or swingable (that is, swinging about an axis parallel to the conveying direction of the glass plate G1).
- the 1st injection part 30 is comprised by the several air nozzle 32
- edge part G2 is not limited to this.
- the air injection pipe 52 of the 2nd injection part 50 it can also be set as the structure which injects compressed air from the several jet nozzle provided in the linear pipe.
- FIG. 8 is a perspective view showing another example of the air nozzle. As shown in FIG. 8, the 1st injection part 30 is good also as a structure provided with the air nozzle 96 provided with the slit-shaped jet nozzle 96A.
- the plurality of air nozzles 32 are configured to inject compressed air at the same time.
- the injection of compressed air may be individually controlled.
- the 2nd injection part 50 is comprised by the air injection pipe 52 provided with several jet nozzle 52A, the structure for injecting compressed air to the main-body part G3 is limited to this. It is not a thing.
- the 2nd injection part 50 may be constituted by a plurality of air nozzles, and it is good also as composition provided with a slit-like jet nozzle.
- the compressed air is jetted only to the edge of the main body G3.
- the jet may be jetted to the entire main body G3.
- the main-body part G3 of the glass plate G1 becomes a main-body part support part by spraying the compressed air injected from the air injection pipe 52 of the 2nd injection part 50 to the main-body part G3 of the glass plate G1.
- it is set as the structure pressed on the roller conveyor 20, it may replace with the 2nd injection part 50, and may also be set as the structure pressed by pressing the main-body part G3 of the glass plate G1 with a roller etc. (especially pressing the edge part of the main-body part G3). it can.
- the pressing of the main body part G3 can be omitted. That is, when the ear part G2 can be folded only by jetting compressed air to the ear part G2, the structure for pressing the main body part G3 can be omitted.
- ⁇ Injection mode of compressed air by the first injection unit About the compressed air which is jetted onto the ear part G2 of the glass plate G1 by the first jetting unit 30, the jetting pressure, jetting time, jetting angle, depending on the thickness of the glass plate G1 to be processed and the conveying speed of the glass plate G1, It is preferable to appropriately adjust the injection distance (that is, the distance from the ejection port to the glass plate).
- the glass plate G1 is in an ear folding position similarly to the air nozzle 32 of the 1st injection part 30. It can also be set as the structure which injects compressed air at the timing conveyed.
- compressed air is used as compressed gas injected to the glass plate G1, about the compressed gas to be used, it is not limited to this. Any gas may be used as long as it can exert a pressing force on the glass plate G1, and an inert gas such as nitrogen or other gas may be used. Further, a fluid such as water, oil, alcohol or an organic solvent may be mixed and injected into the compressed gas, for example, in a mist form.
- the roller conveyor 20 is used as a conveying means of the glass plate G1
- the conveying means of the glass plate G1 is not limited to this. Any mechanism may be used as long as the glass plate G1 and the air nozzle 32 are moved relative to each other.
- a belt conveyor, levitation conveyance using fluid or ultrasonic waves, a conveyance stage, or the like may be used.
- a conveyance means should just convey the glass plate G1 to a predetermined ear folding position, and is not limited to a means to convey the glass plate G1 continuously.
- a means for intermittently conveying the glass plate G1 may be included.
- the said embodiment is set as the structure which sprays compressed air during conveyance of the glass plate G1, and folds the ear
- the ear G2 of the glass plate G1 can be folded.
- it is good also as a structure which the air nozzle 32 provided with the drive means moves with respect to the glass plate G1, and folds the ear
- the glass plate G1 being transported may be temporarily stopped or decelerated, and then compressed air is blown to fold the ear portion G2 of the glass plate G1.
- the glass plate G1 is compressed air is blown to the ear portion G2 at the ear folding position, but the detection that the glass plate G1 is located at the ear folding position is detected by a sensor in addition to the information from the conveying means. It can also be configured.
- the ear portion can be reliably folded without contact, so that the plate thickness t is 0.01 mm ⁇ t ⁇ 1.00 mm. Even a thin glass plate can be reliably folded along the planned cutting line, and the cutting process can be speeded up.
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Abstract
Description
切断予定線が加工されたガラス板に圧縮気体を吹き当てて、ガラス板を切断予定線に沿って折ることにより本体部と耳部とを切断することを特徴とするガラス板の製造方法である。
当該耳折り装置は、切断予定線が加工されたガラス板に圧縮気体を噴射して、ガラス板を切断する圧縮気体噴射手段を備えていることを特徴とするガラス板の切断装置を備えたガラス板の製造装置である。
なお、以下、フロート法によるガラス板の製造装置を例に本発明を実施するための好ましい態様を詳説するが、本願発明は、これに限定されず、公知のガラス板の製造方法及び装置に適用可能である。例えば、無機ガラスの製造方法であれば、ガラスリボン(すなわち、帯状のガラス板)による成形法に好適に適用でき、フロート法、ダウンドロー法、フュージョン法、スロットダウン法、リドロー法、ロール成形法、ロールアウト法や引き上げ法などを例示できる。また、これらの方法で製造されたガラス板をロール状に巻き取ったガラスフィルムロールや、矩形に切り出した枚葉のガラス板、特に極薄ガラス板(ガラスフィルム)にも適用可能である。
図9は、フロート法によるガラス板の製造装置におけるガラスリボンの切断装置の一例を示す平面図である。
切断装置1は、矢印の如く連続的に搬送されるガラスリボンG0を長手方向(すなわち、搬送方向)と直交する方向に切断して枚葉のガラス板G1とし、枚葉のガラス板G1の耳部G2を切断して、製品あるいは中間製品としてのガラス板(以下、耳部の切断前の製造過程のガラス板から、製品あるいは中間製品として切り出す部分を本体部(G3)と称する。)に加工する。
図1、図2は、それぞれ本発明のガラス製造装置に係わるガラス板切断装置における耳折り装置の一実施形態を示す平面図、正面図である。
本発明における搬送手段としてのローラーコンベア20は、一定ピッチで配置されたローラー22の上にガラス板G1を載置して、ガラス板G1を水平に搬送する。ローラー22は、図示しないフレームに回転自在に支持され、図示しない回転駆動手段に駆動されて回転する。ガラス板G1は、本体部G3がローラー22の上に載置されて水平に搬送される。
第一の噴射部、すなわち第1噴射部30は、ガラス板G1の耳部G2に向けて圧縮エアーを噴射する。
第二の噴射部、すなわち第2噴射部50は、ガラス板G1の上方からガラス板G1の本体部G3に向けて垂直に圧縮気体(代表的には、圧縮エア)を噴射する。
上記のように、耳折り装置10は、連続的に搬送されるガラスリボンを切断して、所望サイズのガラス板(本体部G3)に加工する切断装置(図9参照)の一部として構成される。したがって、処理するガラス板G1には、あらかじめ耳部G2と本体部G3とを分離するためのスクライブ線となる縦切断予定線L1が加工される。
ガラス板G1の耳部G2に吹き当てられる圧縮エアーの噴射の圧力、速度等は、処理されるガラス板の種類、板厚等によって、耳部G2への所定の曲げ応力が加わり、好適に折り作業が行われるように、適宜設定される。
〈エアーノズルの支持構造〉
図6、図7は、それぞれエアーノズルの支持構造の他の一例を示す正面図、側面図である。
上記実施の形態では、複数のエアーノズル32によって第1噴射部30を構成しているが、耳部G2に圧縮エアーを噴射するための構造は、これに限定されるものではない。例えば、第2噴射部50のエアー噴射管52のように、直線状のパイプに備えられた複数の噴出口から圧縮エアーを噴射する構成とすることもできる。
上記実施の形態では、複数の噴出口52Aを備えたエアー噴射管52によって第2噴射部50を構成しているが、本体部G3に圧縮エアーを噴射するための構造は、これに限定されるものではない。例えば、第1噴射部30のように、複数のエアーノズルで第2噴射部50を構成してもよく、スリット状の噴出口を備える構成としてもよい。
上記実施の形態では、第2噴射部50のエアー噴射管52から噴射される圧縮エアーをガラス板G1の本体部G3に吹き当てることにより、ガラス板G1の本体部G3を本体部支持部となるローラーコンベア20に押し付ける構成としているが、第2噴射部50に代えて、ローラー等でガラス板G1の本体部G3を押圧(特に本体部G3の縁部を押圧)して押し付ける構造とすることもできる。
第1噴射部30によってガラス板G1の耳部G2に噴射する圧縮エアーについては、処理対象とするガラス板G1の板厚やガラス板G1の搬送速度に応じて噴射圧力、噴射時間、噴射角度、噴射距離(すなわち、噴出口からガラス板までの距離)等を適宜調整することが好ましい。
上記実施の形態では、第2噴射部50のエアー噴射管52から連続的に圧縮エアーを噴射する構造としているが、第1噴射部30のエアーノズル32と同様にガラス板G1が耳折り位置に搬送されるタイミングで圧縮エアーを噴射する構造とすることもできる。
上記実施の形態では、ガラス板G1に噴射する圧縮気体として圧縮エアーを使用しているが、使用する圧縮気体については、これに限定されるものではない。気体として、ガラス板G1に押圧力を及ぼし得る構成であればよく、窒素などの不活性気体やその他の気体を用いてもよい。また、圧縮気体に水、油、アルコールや有機溶媒などの流体を、例えばミスト状に混合して噴射してもよい。
上記実施の形態では、ガラス板G1の搬送手段としてローラーコンベア20を使用しているが、ガラス板G1の搬送手段は、これに限定されるものではない。ガラス板G1とエアーノズル32とを相対的に移動させる機構であればよく、例えば、ベルトコンベア、流体や超音波を用いた浮上搬送、搬送型ステージなどでもよい。また、搬送手段は、所定の耳折り位置にガラス板G1が搬送されればよく、連続的にガラス板G1を搬送する手段に限定されない。例えば、ガラス板G1を間欠で搬送する手段も含みうる。
なお、2013年11月15日に出願された日本特許出願2013-236585号の明細書、特許請求の範囲、図面および要約書の全内容をここに引用し、本発明の開示として取り入れるものである。
Claims (13)
- 本体部となる部分および耳部となる部分を有するガラス板において、本体部と耳部との境界の切断しようとする線に沿って切断予定線を加工し、当該ガラス板を前記切断予定線に沿って折ることにより、前記ガラス板の本体部と前記耳部とを切断し、前記本体部から前記耳部を分離する工程を含むガラス板の製造方法において、
前記切断予定線が加工された前記ガラス板に圧縮気体を吹き当てて、前記ガラス板を前記切断予定線に沿って折ることにより本体部と耳部とを切断することを特徴とするガラス板の製造方法。 - 前記耳部に前記圧縮気体を吹き当てて、前記ガラス板を前記切断予定線に沿って折る請求項1に記載のガラス板の製造方法。
- 前記本体部に前記圧縮気体を吹き当てて、前記本体部を本体部支持部に押し付ける請求項1又は2に記載のガラス板の製造方法。
- 前記ガラス板に対して一様に前記圧縮気体を吹き当てる請求項1から3のいずれか1項に記載のガラス板の製造方法。
- 前記ガラス板と前記圧縮気体を噴射する圧縮気体噴射手段とが相対的に移動しながら前記圧縮気体を吹き当てる請求項1から4のいずれか1項に記載のガラス板の製造方法。
- 一定の間隔で連続的に搬送される前記ガラス板に一定位置から間欠的に前記圧縮気体を吹き当てて、前記ガラス板を前記切断予定線に沿って折る請求項5に記載のガラス板の製造方法。
- 前記圧縮気体噴射手段を複数備え、該複数の圧縮気体噴出手段が同調して間欠的に前記圧縮気体を吹き当てる請求項6に記載のガラス板の製造方法。
- 前記ガラス板は、板厚tが0.01mm≦t≦1.00mmである請求項1から7のいずれか1項に記載のガラス板の製造方法。
- ガラス板の切断装置であって、当該切断装置は、少なくとも一部にガラス板の本体部と耳部との境界の切断しようとする線に沿って切断予定線が加工されたガラス板を前記切断予定線に沿って折ることにより、前記ガラス板の本体部と前記耳部とを切断し、前記本体部から前記耳部を分離するガラス板の耳折り装置を備えており、
当該耳折り装置は、前記切断予定線が加工された前記ガラス板に圧縮気体を噴射して、前記ガラス板を切断する圧縮気体噴射手段を備えていることを特徴とするガラス板の切断装置を備えたガラス板の製造装置。 - 前記圧縮気体噴射手段が、少なくとも前記耳部に前記圧縮気体を吹き当てる第一の噴射部を備える請求項9に記載のガラス板の切断装置を備えたガラス板の製造装置。
- 前記圧縮気体噴射手段は、少なくとも前記本体部に前記圧縮気体を吹き当てて、前記本体部を本体部支持部に押し付ける第二の噴射部をさらに備える請求項9又は10に記載のガラス板の切断装置を備えたガラス板の製造装置。
- 前記ガラス板を搬送する搬送手段をさらに備え、
前記圧縮気体噴射手段は、前記搬送手段によって搬送される前記ガラス板に対して一定位置から前記圧縮気体を噴射する請求項9から11のいずれか1項に記載のガラス板の切断装置を備えたガラス板の製造装置。 - 前記搬送手段は、一定の間隔で連続的に前記ガラス板を搬送し、
前記圧縮気体噴射手段は、前記搬送手段によって搬送される前記ガラス板に対して一定位置から間欠的に前記圧縮気体を噴射する制御手段をさらに備える請求項12に記載のガラス板の切断装置を備えたガラス板の製造装置。
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- 2014-11-12 CN CN201480062332.0A patent/CN105722797A/zh active Pending
- 2014-11-12 WO PCT/JP2014/079974 patent/WO2015072488A1/ja active Application Filing
- 2014-11-12 JP JP2015547775A patent/JP6439230B2/ja not_active Expired - Fee Related
- 2014-11-12 KR KR1020167010468A patent/KR20160086824A/ko not_active Application Discontinuation
- 2014-11-14 TW TW103139576A patent/TWI637920B/zh not_active IP Right Cessation
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JP2001347497A (ja) * | 2000-06-06 | 2001-12-18 | Hitachi Ltd | 分離切断方法及び装置 |
WO2007142264A1 (ja) * | 2006-06-08 | 2007-12-13 | Toray Engineering Co., Ltd. | 基板割断装置、基板割断方法、及びこの装置または方法を用いて割断した割断基板 |
WO2009133832A1 (ja) * | 2008-04-28 | 2009-11-05 | 三星ダイヤモンド工業株式会社 | 脆性材料ブレーク装置及び脆性材料ブレーク方法 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20170083184A (ko) * | 2016-01-07 | 2017-07-18 | 삼성디스플레이 주식회사 | 기판 절단 장치 및 기판 절단 방법 |
KR102471114B1 (ko) | 2016-01-07 | 2022-11-28 | 삼성디스플레이 주식회사 | 기판 절단 장치 및 기판 절단 방법 |
KR20200054252A (ko) * | 2017-09-15 | 2020-05-19 | 코닝 인코포레이티드 | 유리 리본을 가공하는 시스템 및 방법 |
JP2020534235A (ja) * | 2017-09-15 | 2020-11-26 | コーニング インコーポレイテッド | ガラスリボンを処理するためのシステム及び方法 |
JP7281453B2 (ja) | 2017-09-15 | 2023-05-25 | コーニング インコーポレイテッド | ガラスリボンを処理するためのシステム及び方法 |
KR102571224B1 (ko) | 2017-09-15 | 2023-08-25 | 코닝 인코포레이티드 | 유리 리본을 가공하는 시스템 및 방법 |
US11780760B2 (en) | 2017-09-15 | 2023-10-10 | Corning Incorporated | Systems and methods for processing a glass ribbon |
KR102719803B1 (ko) | 2018-12-06 | 2024-10-18 | 쇼오트 아게 | 컷팅 에지를 갖는 유리 부재 및 이의 제조 방법 |
Also Published As
Publication number | Publication date |
---|---|
JP6439230B2 (ja) | 2018-12-19 |
TW201527239A (zh) | 2015-07-16 |
CN105722797A (zh) | 2016-06-29 |
KR20160086824A (ko) | 2016-07-20 |
TWI637920B (zh) | 2018-10-11 |
JPWO2015072488A1 (ja) | 2017-03-16 |
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