WO2010021026A1 - 光学フィルムの搬送方法およびこれを用いた装置 - Google Patents
光学フィルムの搬送方法およびこれを用いた装置 Download PDFInfo
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- WO2010021026A1 WO2010021026A1 PCT/JP2008/064747 JP2008064747W WO2010021026A1 WO 2010021026 A1 WO2010021026 A1 WO 2010021026A1 JP 2008064747 W JP2008064747 W JP 2008064747W WO 2010021026 A1 WO2010021026 A1 WO 2010021026A1
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- Prior art keywords
- optical film
- intermittent
- transport
- conveyance
- cutting
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0838—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt
- B23K26/0846—Devices involving movement of the workpiece in at least one axial direction by using an endless conveyor belt for moving elongated workpieces longitudinally, e.g. wire or strip material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
- B65H35/0073—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
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- 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
- B65H20/04—Advancing webs by friction roller to effect step-by-step advancement of web
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- 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
- B65H20/30—Arrangements for accumulating surplus web
- B65H20/32—Arrangements for accumulating surplus web by making loops
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/16—Composite materials, e.g. fibre reinforced
- B23K2103/166—Multilayered materials
- B23K2103/172—Multilayered materials wherein at least one of the layers is non-metallic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/30—Organic material
- B23K2103/42—Plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2220/00—Function indicators
- B65H2220/09—Function indicators indicating that several of an entity are present
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/515—Cutting handled material
- B65H2301/5153—Details of cutting means
- B65H2301/51536—Laser
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/10—Rollers
- B65H2404/14—Roller pairs
- B65H2404/144—Roller pairs with relative movement of the rollers to / from each other
- B65H2404/1441—Roller pairs with relative movement of the rollers to / from each other involving controlled actuator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0448—With subsequent handling [i.e., of product]
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0448—With subsequent handling [i.e., of product]
- Y10T83/0462—By accelerating travel
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2022—Initiated by means responsive to product or work
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2066—By fluid current
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/202—With product handling means
- Y10T83/2092—Means to move, guide, or permit free fall or flight of product
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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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/444—Tool engages work during dwell of intermittent workfeed
- Y10T83/4529—With uninterrupted flow of work from supply source
Definitions
- the present invention uses a method for transporting an optical film that can be transported with high precision without damaging the optical film such as a polarizing film, a brightness enhancement film, and a retardation film to be bonded to a substrate such as a liquid crystal panel, and the same. Relates to the device.
- a conventional method for conveying a single-wafer optical film is performed as follows.
- the sensor detects when the leading edge of the sheet-like workpiece exceeds the upstream conveyor, and from the lower side between the upstream and downstream conveyors, the upper side The sheet-like workpiece is delivered onto the downstream conveyor while air is blown toward the sheet-like workpiece passing through (see Patent Document 1).
- the conventional apparatus has the following problems. That is, since a predetermined process or inspection is performed on the transported object in the process of transporting the transported object along a plurality of transport conveyors continuously arranged, it is necessary to temporarily stop a specific transport conveyor. That is, the conveyance conveyor which intermittently operates in a conveyance process, and the conveyance conveyor which only conveys a to-be-conveyed object are included.
- the upstream intermittent conveyance conveyor may stop before delivering the object to be conveyed to the downstream continuous conveyance conveyor. That is, there is a case where the object to be conveyed is stopped across the upstream side and the downstream side. In this case, there is a problem that the tip of the object to be conveyed is rubbed in a state where it is in contact with the belt of the continuous conveyor, and the quality of the object to be conveyed is deteriorated.
- the present invention has been made in view of such circumstances, and an optical film transport method capable of accurately transporting the optical film without causing damage such as rubbing in the process of transporting the optical film and an apparatus using the same
- the main purpose is to provide
- the present invention has the following configuration in order to achieve the above object.
- this invention method is a method for transporting an optical film for transporting a single-wafer optical film, In the process of transporting the belt-shaped optical film, cut into sheets of a predetermined length, While feeding the optical film of a predetermined length until the next cutting site reaches the cutting action position, while intermittently transporting the optical film after cutting, the rear end of the optical film at the beginning of the intermittent transport process, It is characterized in that the optical film is delivered to the continuous conveyance process that is sent out beyond the intermittent conveyance process at the time of the next intermittent conveyance and continuously conveys the optical film downstream of the intermittent conveyance process.
- the cut optical films are intermittently transported so that the optical films are transported at a predetermined pitch without being overlapped after the cutting.
- the first optical film in the intermittent conveyance process is sent out beyond the intermittent conveyance process at the next intermittent conveyance and passed to the downstream continuous conveyance process, the state that spans between the intermittent conveyance process and the continuous conveyance process Therefore, the conveyance of the optical film does not stop. That is, while the optical film is held in the intermittent conveyance process, it does not rub against the continuous conveyance process in which the tip continuously operates for a predetermined time. Accordingly, it is possible to suppress the deterioration of the quality of the optical film during the conveyance process.
- the optical film when the optical film is transferred from the intermittent transfer process to the continuous transfer process, the optical film can be transferred to the continuous transfer process with the tip of the optical film lifted. That is, even when the tip of the optical film is bent downward due to its own weight, the optical film can be transferred from the tip on the continuous conveyance process by lifting the height to a level that can absorb the amount of bending. Therefore, the prior application of the optical film does not rub against a driving unit such as a conveyance belt in a continuous conveyance process at the time of delivery.
- the present invention has the following configuration in order to achieve the above object.
- an optical film transport device for transporting a single optical film, Supply means for supplying the optical film in a strip shape; Cutting means for cutting the optical film into sheets of a predetermined length; An intermittent conveyance device that intermittently conveys the cut optical film; A continuous conveyance device that continuously conveys the optical film conveyed from the intermittent conveyance device; and While the optical film of a predetermined length is sent out by the supply means until the cutting portion of the optical film to be cut sequentially cut by the cutting means reaches the cutting action position, the cut optical film is intermittently transferred by the intermittent conveying device. At the same time, the rear end of the optical film at the head of the intermittent conveyance device is sent over the intermittent conveyance device at the next intermittent conveyance, and is transferred to the continuous conveyance device downstream of the intermittent conveyance device. Control means for controlling It is provided with.
- the front end side does not stop while contacting the continuous conveyance device, leaving the rear end of the cut optical film in the intermittent conveyance device. Therefore, since the tip of the optical film does not rub against the continuous conveyance device for a predetermined time, deterioration of the quality of the optical film can be suppressed. Therefore, the above inventive method can be suitably realized.
- a gas blowing means for blowing gas toward the optical film from below the optical film passing between the intermittent conveyance device and the continuous conveyance device.
- the method for transporting an optical film and the apparatus using the same even if the optical film is transported between a plurality of transport processes in which a transport process that operates intermittently and a transport process that operates continuously are linked, The optical film never stops once in between. Therefore, when the optical film is transferred between the transport processes, the tip of the optical film is not rubbed in the transport process in which the downstream side is continuously operated, so that deterioration in quality can be suppressed.
- the optical member is not particularly limited as long as it is a flexible belt-like functional film such as a polarizing film, a retardation film, and a brightness enhancement film.
- the optical member is a polarizing film. The case where is used will be described as an example.
- FIG. 1 shows a schematic configuration of an optical film cutting apparatus including a process of cutting an optical film according to the present invention and including a process of stacking and storing the cut optical film so that the optical film can be carried out.
- the film supply unit 1 for feeding and supplying the polarizing film F, the cutting mechanism 3 for cutting the polarizing film F to a predetermined length in the transport direction, and transporting the polarized film F after cutting at the end of the transport path.
- the mechanism 4 includes a carry-out mechanism 6 that carries the polarizing film F conveyed from the conveyance mechanism 4 to the next process.
- the film supply unit 1 corresponds to the supply means of the present invention.
- the film supply unit 1 has a bobbin 8 loaded with an original fabric roll 7 in which a strip-shaped product obtained by slitting a wide polarizing film F into a predetermined width is rolled.
- the bobbin 8 is connected to a driving device such as a motor.
- the film supply unit 1 corresponds to the supply means of the present invention.
- a dancer roller D is provided between the film supply unit 1 and the cutting mechanism 3.
- the dancer roller D cuts the polarizing film F sucked and held by the suction table 9 of the cutting mechanism 3 with the laser device 10 to release the suction holding, and the amount of the polarizing film F fed from the film supply unit 1 is released. Absorb.
- the cutting mechanism 3 includes a suction table 9 that sucks and holds the polarizing film F from the back surface, a laser device 10, and a pair of gripping rollers 11 and 12 that grip the polarizing film F on the upstream side and the downstream side across the laser device 10. I have.
- the laser device 10 corresponds to the cutting means of the present invention.
- two holding blocks 9 a and 9 b having the same height on the surface of the suction table 9 connected in communication with the suction device 13 are arranged along the conveying direction of the polarizing film F. It is connected and fixed by bolts etc. in close proximity. That is, the suction groove 14 orthogonal to the conveyance direction of the polarizing film F is formed by the opposing inner walls of the holding blocks 9a and 9b. That is, the suction groove 14 becomes a scanning path of the laser irradiated from the laser device 10.
- the laser device 10 is configured to be horizontally movable so as to cut the polarizing film F along the suction groove 14 which is the width direction.
- the gripping rollers 11 and 12 are connected and fixed to a driving mechanism such as a motor so that the polarizing film F can be fed out.
- the lower driving rollers 11 a and 12 a and the upper standby position and the polarizing film F The roller 11b, 12b is moved up and down over the operating position where it is gripped in cooperation with the drive roller.
- the rollers 11b and 12b are moved up and down by an air cylinder 20 connected via a rod 19 to a bracket 18 screwed to the central axis of the roller.
- the gripping rollers 11 and 12 have a diameter of 30 mm and coated with an elastic material such as urethane having a hardness of about 30 to 90 on the metal surface. Drive at speed.
- the transport mechanism 4 has an intermittent transport conveyor 4a having a transport belt on which the polarizing film F that is intermittently drawn from the gripping roller 12 is placed and intermittently transported in conjunction with the intermittent operation of the gripping roller, and the intermittent transport conveyor 4a. And a continuous conveyer 4b which is arranged at a predetermined interval and continuously operates at a predetermined interval. Further, as shown in FIG. 3, an air supply device 21 having a punching plate having the same width as the belt width is disposed between the two conveyors 4a and 4b.
- the intermittent conveyer 4a in this embodiment apparatus is set to a length that can hold the two polarizing films F after cutting at a predetermined pitch.
- the continuous conveyor 4b is set to a length that can hold a single polarizing film in a plane.
- the intermittent conveyor 4a corresponds to the intermittent conveyor of the present invention
- the continuous conveyor 4b corresponds to the continuous conveyor
- the air supply means 21 corresponds to the gas blowing means.
- the unloading mechanism 6 is configured by a roller conveyor continuously disposed below the end of the transport mechanism 4.
- a tray 15 for collecting the polarizing film F falling from the transport mechanism 4 is provided at the start end portion of the carry-out mechanism 6.
- the control unit 16 operates the intermittent conveyance conveyor 4a in synchronization with the feeding of the single-sheet optical film F cut by the laser device 10 by the driving roller 12a. Specifically, the conveyance speed of the intermittent conveyance conveyor 4a is made faster than the feeding speed of the drive roller 12a. That is, the two polarizing films F after cutting are held flat on the intermittent transport conveyor 4a with a predetermined pitch. Further, when the next intermittent transport operation is performed with the two polarizing films F placed and held on the intermittent transport conveyor 4a, the leading polarizing film F passes the intermittent transport conveyor 4a on the downstream side. It is operated so as to be placed on the continuous conveyance belt 4b.
- control unit 16 stores in the internal memory 22 in advance a recipe that is obtained from the relationship between the conveyance speed of the intermittent conveyance conveyor 4a with respect to the feeding speed of the drive roller 12a and the relationship between the length of the polarizing film F and the pitch between the polarizing films F. I remember it.
- a recipe ae as shown in FIG. 4 is set in the memory 22 of the control unit 16 in advance.
- the length of the upper side conveyor belt is set to 37 inches ⁇ 2 (1690 mm)
- the length of the polarizing film F of the single wafer is set to 840 mm
- the pitch P is set to 50 mm in the memory 22.
- the intermittent transport conveyor 4a since the intermittent transport conveyor 4a operates so that the polarizing film F can be completely placed on the continuous transport conveyor 4b, the gap between the two conveyors is set to be equal to or less than the pitch P of the polarizing film F. .
- control unit 16 comprehensively controls each mechanism in addition to the above recipe setting. The control of each mechanism will be described later in the description of the operation of the device.
- the raw film roll 7 of the polarizing film F to be used is loaded into the film supply unit 1.
- the operator performs initial setting using an operation panel or the like. For example, the cutting length, thickness, supply speed, laser output and focal depth of the polarizing film F, the feeding speed of the driving roller 12a, and the like are set.
- the supply of the polarizing film F from the original roll 7 is started, and the rotational speed of a drive shaft such as a motor provided in the film supply unit 1 is detected by a sensor such as a rotary encoder that is not shown. A polarizing film F is supplied.
- the polarizing film F is conveyed to the cutting mechanism 3.
- the control unit 16 controls the gripping rollers 11 and 12 to grip the polarizing film F at both ends of the holding table.
- the air cylinder 20 connected to both the rollers 11b and 12b is synchronized, and as shown in FIG. 5, the rollers 11b and 12b are simultaneously lowered.
- control unit 16 operates the suction device 13 in this state to suck and hold the polarizing film F on the holding table 9.
- control unit 16 controls the dancer roller D so that the polarizing film F continuously supplied from the film supply unit 1 is not fed after the dancer roller D.
- the polarizing film F sucked and held on the holding table 9 is cut in the width direction by the laser device 10 along the suction groove 14.
- the control unit 16 When the polarizing film F is cut, the suction of the suction table 9 and the gripping by the gripping rollers 11 and 12 are released. In conjunction with this release operation, the control unit 16 operates the drive rollers 11a and 12a, the intermittent transport conveyor 4a, and the air supply device 21. That is, the control unit 16 reads an optimum recipe from the memory 22 based on the initial setting. In accordance with this recipe, the control unit 16 drives the driving roller so that the single-sided polarizing film F that is intermittently drawn from the upstream cutting mechanism 3 side is held flat at a predetermined pitch with respect to the polarizing film F on the intermittent transport conveyor 4a. 11a and 12a and the intermittent conveyance conveyor 4a are controlled.
- the intermittent transport conveyor 4a is controlled so that the leading polarizing film F can be placed on the continuous transport conveyor 4b. Further, the control unit 16 supplies air toward the polarizing film F passing upward from the air supply device 21 disposed between the conveyors while the polarizing film F is transferred from the intermittent conveyor 4a to the continuous conveyor 4b.
- the polarizing film F delivered to the continuous conveyance conveyor 4b is conveyed toward the carry-out mechanism 6.
- the controller 16 controls the dancer roller D to feed the polarizing film F to the cutting mechanism 3.
- a tray 15 is installed. Accordingly, the polarizing film F falling from the end position of the transport mechanism 4 is sequentially stored in the storage frame 15.
- the tray 15 When a predetermined number of polarizing films F are stacked on the tray 15 by repeating the above series of operations, the tray 15 is retracted to the retracted position, and then the unloading mechanism 6 is operated to place the stacked polarizing films F in the next process. Remove.
- the intermittent transport conveyor 4a is intermittently operated at a speed faster than the feeding speed in synchronization with the intermittent feeding of the polarizing film F from the cutting mechanism 3, and the polarizing films do not overlap each other at a predetermined pitch. Can be transported. Moreover, the polarizing film F in the head of the intermittent conveyance conveyor 4a can be loaded on the downstream continuous conveyance conveyor 4b by the next intermittent conveyance operation. Therefore, it can avoid that the front end side of the polarizing film F stops and rubs in contact with the continuous conveyance conveyor 4b. Therefore, the deterioration of the quality of the polarizing film F can be suppressed.
- the present invention can also be implemented in the following modified form.
- the number of sheets on which the polarizing film F is held flat on the continuous conveyor 4b is not limited.
- the above-described embodiment apparatus may operate the air supply apparatus 21 intermittently in conjunction with the operation of the intermittent transport conveyor 4a, or may be configured to continuously supply air.
- the combination of the pair of upper and lower rollers constituting the gripping rollers 11 and 12 is not limited to the above-described embodiment, and may be another combination.
- the drive rollers 11a and 12a may be made of metal, and the upper rollers 11b and 12b may be combined as elastic rollers.
- the present invention is suitable for accurately transporting an optical film.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Polarising Elements (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Description
帯状の光学フィルムを搬送する過程で所定長さの枚葉に切断し、
次の切断部位が切断作用位置に達するまで所定長さの光学フィルムを送り出しながら、切断後の前記光学フィルムを間欠的に搬送するとともに、当該間欠搬送過程の先頭にある光学フィルムの後端が、次の間欠搬送時に当該間欠搬送過程を越えて送り出され、当該間欠搬送過程の下流側に続く連続的に光学フィルムを搬送する連続搬送過程に光学フィルムを受け渡すことを特徴とする。
帯状の前記光学フィルムを供給する供給手段と、
前記光学フィルムを所定長さの枚葉に切断する切断手段と、
前記切断された枚葉の光学フィルムを間欠的に搬送する間欠搬送装置と、
前記間欠搬送装置から搬送されてくる光学フィルムを受け取りながら連続的に搬送する連続搬送装置と、
前記切断手段によって順次に切断される切断対象の光学フィルムの切断部位が切断作用位置に達するまで供給手段によって所定長さの光学フィルムを送り出しながら、切断後の光学フィルムを間欠搬送装置によって間欠的に搬送するとともに、当該間欠搬送装置の先頭にある光学フィルムの後端が、次の間欠搬送時に当該間欠搬送装置を越えて送り出され、当該間欠搬送装置の下流側に続く連続搬送装置に受け渡されるように制御する制御手段と、
を備えたことを特徴とする。
3 … 切断機構
4 … 搬送機構
4a… 間欠搬送コンベア
4b… 連続搬送コンベア
6 … 搬出機構
9 … 吸着テーブル
11 … 把持ローラ
11a… 駆動ローラ
12 … 把持ローラ
12a… 駆動ローラ
16 … 制御部
22 … メモリ
F … 偏光フィルム
Claims (5)
- 枚葉の光学フィルムを搬送する光学フィルムの搬送方法であって、
帯状の光学フィルムを搬送する過程で所定長さの枚葉に切断し、
次の切断部位が切断作用位置に達するまで所定長さの光学フィルムを送り出しながら、切断後の前記光学フィルムを間欠的に搬送するとともに、当該間欠搬送過程の先頭にある光学フィルムの後端が、次の間欠搬送時に当該間欠搬送過程を越えて送り出され、当該間欠搬送過程の下流側に続く光学フィルムを連続的に搬送する連続搬送過程に光学フィルムを受け渡す
ことを特徴とする光学フィルムの搬送方法。 - 請求項1に記載の光学フィルムの搬送方法において、
前記間欠搬送過程と連続搬送過程との間を通過する光学フィルムの下方から当該光学フィルムに向けて気体を吹き付ける
ことを特徴とする光学フィルムの搬送方法。 - 枚葉の光学フィルムを搬送する光学フィルムの搬送装置であって、
帯状の前記光学フィルムを供給する供給手段と、
前記光学フィルムを所定長さの枚葉に切断する切断手段と、
前記切断された枚葉の光学フィルムを間欠的に搬送する間欠搬送装置と、
前記間欠搬送装置から搬送されてくる光学フィルムを受け取りながら連続的に搬送する連続搬送装置と、
前記切断手段によって順次に切断される切断対象の光学フィルムの切断部位が切断作用位置に達するまで供給手段によって所定長さの光学フィルムを送り出しながら、切断後の光学フィルムを間欠搬送装置によって間欠的に搬送するとともに、当該間欠搬送装置の先頭にある光学フィルムの後端が、次の間欠搬送時に当該間欠搬送装置を越えて送り出され、当該間欠搬送装置の下流側に続く連続搬送装置に受け渡されるように制御する制御手段と、
を備えたことを特徴とする光学フィルムの搬送装置。 - 請求項3に記載の光学フィルムの搬送装置において、
前記制御手段は、前記間欠搬送装置の先頭にある光学フィルムの後端が、次の間欠搬送時に当該間欠搬送装置の下流側に続く連続搬送装置に載りきるように制御する
ことを特徴とする光学フィルムの搬送装置。 - 請求項3または請求項4に記載の光学フィルムの搬送装置において、
前記間欠搬送装置と連続搬送装置との間を通過する光学フィルムの下方から当該光学フィルムに向けて気体を吹き付ける気体吹付け手段を備えた
ことを特徴とする光学フィルムの搬送装置。
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PCT/JP2008/064747 WO2010021026A1 (ja) | 2008-08-19 | 2008-08-19 | 光学フィルムの搬送方法およびこれを用いた装置 |
US12/676,524 US8601921B2 (en) | 2008-08-19 | 2008-08-19 | Optical film transport method, and apparatus using the same |
KR1020107011600A KR101385790B1 (ko) | 2008-08-19 | 2008-08-19 | 광학 필름의 반송 방법 및 이를 이용한 장치 |
CN200880024712A CN101808920A (zh) | 2008-08-19 | 2008-08-19 | 光学薄膜的输送方法以及采用该方法的装置 |
JP2009537430A JP5002018B2 (ja) | 2008-08-19 | 2008-08-19 | 光学フィルムの搬送方法およびこれを用いた装置 |
TW097132262A TWI477432B (zh) | 2008-08-19 | 2008-08-22 | A method for transporting an optical film and a device using the same |
US14/060,427 US8919232B2 (en) | 2008-08-19 | 2013-10-22 | Optical film transport method, and apparatus using the same |
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Also Published As
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JPWO2010021026A1 (ja) | 2012-01-26 |
US20140041497A1 (en) | 2014-02-13 |
TWI477432B (zh) | 2015-03-21 |
US20100162864A1 (en) | 2010-07-01 |
KR20110046387A (ko) | 2011-05-04 |
CN101808920A (zh) | 2010-08-18 |
JP5002018B2 (ja) | 2012-08-15 |
TW201008861A (en) | 2010-03-01 |
KR101385790B1 (ko) | 2014-04-16 |
US8601921B2 (en) | 2013-12-10 |
US8919232B2 (en) | 2014-12-30 |
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