CN110780470A - Conveying system - Google Patents
Conveying system Download PDFInfo
- Publication number
- CN110780470A CN110780470A CN201910692292.2A CN201910692292A CN110780470A CN 110780470 A CN110780470 A CN 110780470A CN 201910692292 A CN201910692292 A CN 201910692292A CN 110780470 A CN110780470 A CN 110780470A
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- Prior art keywords
- display panel
- liquid crystal
- temporary placement
- panel
- crystal panel
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- 230000005611 electricity Effects 0.000 claims abstract description 26
- 150000002500 ions Chemical class 0.000 claims description 72
- 238000007689 inspection Methods 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 6
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 5
- 229920002530 polyetherether ketone Polymers 0.000 claims description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 156
- 230000032258 transport Effects 0.000 description 21
- 230000003068 static effect Effects 0.000 description 7
- 238000001179 sorption measurement Methods 0.000 description 5
- 230000002950 deficient Effects 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006386 neutralization reaction Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- 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
- B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
- B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
- B65G47/90—Devices for picking-up and depositing articles or materials
- B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
- Liquid Crystal (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention provides a conveying system, which can effectively remove electricity of a display panel carried into a processing device in the conveying system for conveying the display panel to the processing device for processing the display panel. A conveying system (1) for conveying a display panel (2) between a processing device (3) for processing the display panel (2) and a panel arrangement unit (4) for arranging the display panel (2) before processing by the processing device (3) at least comprises: a robot (8) for carrying the display panel (2) into the processing device (3); a temporary placement platform (7) for placing the display panel (2) before being carried out from the panel arrangement unit (4) and carried into the processing device (3); and an ionizer (11) for removing electricity from the display panel (2) placed on the temporary placement table (7).
Description
Technical Field
The present invention relates to a conveyance system for conveying display panels such as liquid crystal panels.
Background
Conventionally, an inspection apparatus for inspecting lighting of a liquid crystal panel is known (for example, see patent document 1). The inspection apparatus described in patent document 1 is incorporated in the middle of a manufacturing system of a liquid crystal display. The inspection apparatus includes: the inspection apparatus includes a detector for performing lighting inspection of the liquid crystal panel, a carrying-in side conveyor for conveying the liquid crystal panel before inspection to the detector, and a carrying-in mechanism for carrying the liquid crystal panel conveyed by the carrying-in side conveyor into the detector. The carrying-in mechanism includes: the liquid crystal display device includes an adsorption part for adsorbing and holding the surface of the liquid crystal panel, a conveying arm with the adsorption part mounted on the front end, and a moving mechanism for moving the conveying arm in the horizontal direction. The adsorption part comprises a sucker connected with a vacuum pump.
[ Prior art documents ]
[ patent document ]
[ patent document 1] Japanese patent application laid-open No. 2007-107973
Disclosure of Invention
[ problems to be solved by the invention ]
In the inspection device described in patent document 1, the liquid crystal panel is charged by frictional electrification when the liquid crystal panel is attracted and held by the attraction section of the carry-in mechanism, or by peeling electrification when the liquid crystal panel held by the attraction section of the carry-in mechanism is separated from the attraction section. Even if the liquid crystal panel is charged when the liquid crystal panel is held by the suction portion or when the liquid crystal panel is separated from the suction portion due to frictional electrification or peeling electrification, there is a low possibility that the quality of the liquid crystal panel is damaged by the influence of static electricity of such a degree.
However, as is clear from the studies of the inventors of the present application, when a lighting inspection of a liquid crystal panel is performed in which the liquid crystal panel is charged when the liquid crystal panel is held by the suction portion or when the liquid crystal panel is separated from the suction portion due to frictional electrification or peeling electrification, the liquid crystal panel, which is originally a good product, may be determined as a defective product due to the influence of static electricity depending on the inspection accuracy of the lighting inspection.
Accordingly, an object of the present invention is to provide a transport system that can efficiently remove electricity from a display panel carried into a processing apparatus in a transport system that transports the display panel to the processing apparatus that performs processing of the display panel.
[ means for solving problems ]
In order to solve the above-described problems, a transport system according to the present invention is a transport system that transports a display panel between a processing apparatus that performs processing of the display panel and a panel arrangement unit that arranges the display panel before the processing by the processing apparatus, and includes at least: a robot which carries the display panel into the processing device; a temporary placement platform for placing the display panel before being carried out from the panel arrangement part and carried into the processing device; and an ionizer (ionizer) for removing electricity from the display panel mounted on the temporary mounting table.
In the present invention, the robot carries the display panel into the processing apparatus after a predetermined time has elapsed with the display panel being placed on the temporary placement platform, for example.
The conveying system of the invention comprises: a temporary placement platform on which a display panel is placed before being carried out from a panel arrangement unit on which the display panel is arranged before being processed by a processing device and before being carried into the processing device; and an ionizer for removing electricity from the display panel placed on the temporary placement table. Therefore, in the present invention, the display panel after the charge removal processing for a predetermined time by the ionizer in the state of being placed on the temporary placement table can be carried into the processing apparatus. Therefore, in the present invention, the display panel carried into the processing apparatus can be efficiently removed from the electricity.
In the present invention, it is preferable that the ion generator is disposed below the display panel mounted on the temporary mounting table, and supplies ions toward a lower surface side of the display panel mounted on the temporary mounting table. When the display panel is placed on the temporary placement platform, the lower surface of the display panel in contact with the temporary placement platform is charged by frictional electrification, but if the display panel is configured as described above, the lower surface of the display panel placed on the temporary placement platform can be effectively removed from the electricity. In addition, in the case where the display panel in the state in which the lower surface is attracted is conveyed to the temporary placement table, when the display panel is placed on the temporary placement table, the lower surface of the display panel is charged by peeling electrification, but if the configuration is such as described above, the lower surface of the display panel placed on the temporary placement table can be effectively removed from the electricity.
In the present invention, it is preferable that the ion generator is disposed on an obliquely lower side of the display panel mounted on the temporary mounting table, and supplies ions obliquely upward toward a lower surface of the display panel mounted on the temporary mounting table. With such a configuration, the entire lower surface of the display panel can be easily and uniformly removed of electricity, as compared with a case where the ion generator is disposed directly below the display panel. Further, with the above configuration, it is easy to prevent interference between the member supporting the temporary placement table and the ionizer. In addition, in the case where ions are ejected from the ionizer toward the display panel, if the ionizer is disposed directly below the display panel, the display panel is likely to float from the temporary placement table due to the influence of the ions ejected toward the display panel from directly below.
In the present invention, it is preferable that the temporary placement platform includes a placement member, a lower surface of the display panel placed on the temporary placement platform contacts the placement member, and the placement member includes a hard material. With such a configuration, the deformation of the mounting member when the display panel is mounted on the temporary mounting platform can be prevented. Therefore, electrification of the display panel due to frictional electrification when the display panel is placed on the temporary placement platform can be suppressed. In this case, the mounting member includes, for example, polyetheretherketone.
In the present invention, it is preferable that the transport system includes a second ionizer for removing electricity from the display panel in the middle of transporting the display panel from the panel arrangement portion toward the temporary placement table, and the display panel stops for a predetermined time at an ion supply position at which the second ionizer supplies ions in the middle of transporting the display panel from the panel arrangement portion toward the temporary placement table. With such a configuration, the display panel carried into the processing apparatus can be more efficiently removed from the electricity.
In the present invention, it is preferable that the transfer system includes a second robot that transfers the display panel from the panel arrangement portion toward the temporary placement platform, and the robot transfers the display panel from the temporary placement platform toward the processing apparatus. With such a configuration, the display panel can be conveyed from the panel arrangement portion to the temporary placement platform and the display panel can be conveyed from the temporary placement platform to the processing apparatus at the same time. Therefore, the cycle time of the conveyance system can be shortened.
In the present invention, the processing device is, for example, a lighting inspection device that performs lighting inspection on the display panel. In this case, the display panel carried into the lighting inspection apparatus can be effectively discharged. Therefore, the display panel which is originally good can be prevented from being judged as a defective product in the lighting inspection device due to the influence of static electricity.
[ Effect of the invention ]
As described above, in the present invention, in the transport system that transports the display panel to the processing apparatus that performs the processing of the display panel, the neutralization of the display panel carried into the processing apparatus can be efficiently performed.
Drawings
Fig. 1 is a perspective view of a conveyance system and a processing apparatus according to an embodiment of the present invention.
Fig. 2 is a side view for explaining the configuration of the conveyance system shown in fig. 1.
Fig. 3 is a plan view for explaining the configuration of the conveyance system shown in fig. 1.
Fig. 4 is an enlarged view for explaining the structure of the section E in fig. 1.
[ description of symbols ]
1: conveying system
2: LCD panel (display panel)
3: inspection device (Lighting inspection device, processing device)
4: panel arrangement part
5: box
7: temporary placement platform
8: robot
9: robot (second robot)
11: ion generator
12: ion generator (second ion generator)
13: ion generator
16: supporting member
17. 18, 20, 21, 23, 24: joint part
19. 22: arm(s)
25: panel holding mechanism
25 a: panel holding part
28: platform body
28 a: cut-out part
29: mounting member
SP: ion supply position
X1, X2, Y1, Y2: direction of rotation
Detailed Description
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Structure of conveying System)
Fig. 1 is a perspective view of a conveyance system 1 and a processing apparatus 3 according to an embodiment of the present invention. Fig. 2 is a side view for explaining the configuration of the conveyance system 1 shown in fig. 1. Fig. 3 is a plan view for explaining the configuration of the conveyance system 1 shown in fig. 1. Fig. 4 is an enlarged view for explaining the structure of the section E in fig. 1.
The conveyance system 1 of the present embodiment is incorporated into a production line of a relatively small liquid crystal display used in a portable device or the like. The transport system 1 transports a liquid crystal panel 2 as a display panel. Specifically, the transport system 1 transports the liquid crystal panel 2 between the processing apparatus 3 that performs processing of the liquid crystal panel 2 and the panel arrangement portion 4 that arranges the liquid crystal panel 2 before the processing by the processing apparatus 3. The liquid crystal panel 2 is formed in a rectangular flat plate shape.
In the following description, the X1 direction side of fig. 1 and the like, which is one side in the left-right direction orthogonal to the up-down direction (vertical direction), is referred to as the "right" side, the X2 direction side of fig. 1 and the like, which is the opposite side, is referred to as the "left" side, the Y1 direction side of fig. 1 and the like, which is one side in the front-rear direction orthogonal to the up-down direction and the left-right direction, is referred to as the "front" side, and the Y2 direction side of fig. 1 and the like, which is the opposite side, is referred to as the "rear" side.
The processing device 3 of the present embodiment is a lighting inspection device that performs lighting inspection of the liquid crystal panel 2. Therefore, the processing device 3 is hereinafter referred to as "inspection device 3". In the present embodiment, the plurality of liquid crystal panels 2 accommodated in the cassette 5 are disposed in the panel disposing section 4. In the case 5, the liquid crystal panel 2 is disposed so that the thickness direction of the liquid crystal panel 2 substantially coincides with the vertical direction. In the case 5, the plurality of liquid crystal panels 2 are arranged with a predetermined interval in the vertical direction. The liquid crystal panel 2 housed in the case 5 is carried out to the rear side. Further, the plurality of liquid crystal panels 2 stored in the tray may be arranged in the panel arrangement portion 4.
The conveyance system 1 includes: a temporary placement table 7 on which the liquid crystal panel 2 is placed before being carried out from the panel arrangement unit 4 and into the inspection device 3; a robot 8 that carries the liquid crystal panel 2 from the temporary placement platform 7 to the inspection device 3 (that is, carries the liquid crystal panel 2 into the inspection device 3); and a robot 9 that conveys the liquid crystal panel 2 from the panel arrangement unit 4 toward the temporary placement platform 7 (i.e., carries the liquid crystal panel 2 out of the cassette 5). The robot 9 of the present embodiment is a second robot.
Further, the conveyance system 1 includes: an ionizer 11 for removing electricity from the liquid crystal panel 2 placed on the temporary placement table 7; an ionizer 12 for removing electricity from the liquid crystal panel 2 while the liquid crystal panel 2 is being conveyed from the panel arrangement portion 4 toward the temporary placement table 7; and an ionizer 13 for removing electricity from the liquid crystal panel 2 carried out of the panel arrangement portion 4 (i.e., carried out of the cassette 6). The ionizers 11 to 13 are, for example, corona discharge type ionizers. The ionizers 11 to 13 are so-called rod-type static eliminators, and include elongated head units formed in a rod shape. The ionizer 12 of this embodiment is a second ionizer.
The robot 8 and the robot 9 are disposed with a gap therebetween in the left-right direction. In the present embodiment, the robot 8 is disposed on the right side, and the robot 9 is disposed on the left side. The temporary placement platform 7 is disposed between the robots 8 and 9 in the left-right direction. The inspection device 3 is disposed behind the robot 8. The panel arrangement unit 4 is arranged on the front side of the robot 9.
A backlight, a camera, and the like for performing lighting inspection of the liquid crystal panel 2 are provided inside the inspection device 3. In the inspection device 3, for example, two liquid crystal panels 2 are inspected for lighting at a time. The inspection device 3 includes an ionizer for removing electricity from the liquid crystal panel 2 loaded into the inspection device 3. The ion generator is disposed at the inlet of the liquid crystal panel 2. The panel arrangement portion 4 includes a cassette holding portion that holds the cassette 5. The cartridge holding section is rotatable with the left-right direction as the axial direction of rotation and the lower end of the cartridge holding section as the center of rotation. The operator manually places the cassette 5 in the cassette holder.
The robots 8 and 9 are six-axis vertical articulated robots. As shown in fig. 2, the robots 8 and 9 include: a support member 16 constituting the lower end portions of the robots 8 and 9; a joint 17 relatively rotatably coupled to the support member 16; a joint part 18 connected to the joint part 17 to be relatively rotatable; a linear arm 19 having a base end fixed to the joint 18; a joint part 20 fixed to the tip of the arm 19; a joint part 21 relatively rotatably connected to the joint part 20; a linear arm 22 having a base end connected to the joint 21 so as to be relatively rotatable; a joint portion 23 that fixes the front end of the arm 22; and a joint portion 24 that is relatively movably coupled to the joint portion 23.
The robot 8 and the robot 9 include a panel holding mechanism 25 that is rotatably coupled to the joint 24 and holds the liquid crystal panel 2. The panel holding mechanism 25 includes a panel holding portion 25a that holds the liquid crystal panel 2 by suction. The panel holding portion 25a includes a plurality of rubber suction pads. Suction holes are formed in the inner peripheral side of the suction pad, and the suction holes are connected to a suction mechanism for air such as a vacuum pump through a predetermined pipe. The panel holding portion 25a holds one liquid crystal panel 2.
Two liquid crystal panels 2 can be placed on the temporary placement table 7. Specifically, the two liquid crystal panels 2 can be placed on the temporary placement table 7 with a predetermined gap in the front-rear direction. The temporary placement platform 7 includes: a platform body 28 formed in a substantially rectangular flat plate shape; and a mounting member 29 fixed to the upper surface of the table main body 28 and mounting the liquid crystal panel 2 thereon. In fig. 3, the mounting member 29 is not shown.
The upper surface of the table main body 28 is a plane orthogonal to the vertical direction. The platform body 28 is formed with a cutout portion 28a through which the panel holding portion 25a of the robot 9 passes in the vertical direction. The cutout portion 28a is formed from the left end of the temporary placement platform 7 toward the right side. The cutout portion 28a penetrates the temporary placement platform 7 in the vertical direction. The cutout portions 28a are formed at two positions corresponding to the placement position of the liquid crystal panel 2.
The mounting member 29 includes a hard material. The mounting member 29 of the present embodiment is made of polyether ether ketone as a hard resin material. More specifically, the mounting member 29 includes polyetheretherketone, which is electrically non-conductive. The liquid crystal panel 2 placed on the temporary placement table 7 contacts the placement member 29. Specifically, the lower surface of the liquid crystal panel 2 placed on the temporary placement table 7 contacts the placement member 29. The contact surface of the mounting member 29 contacting the liquid crystal panel 2 is a plane perpendicular to the vertical direction. In the present embodiment, four mounting members 29 are fixed to the platform body 28 so as to surround each of the two cutouts 28a, and one liquid crystal panel 2 is mounted on the four mounting members 29. Namely, eight mounting members 29 are fixed to the deck body 28.
The ionizer 11 is disposed below the temporary placement table 7 and below the liquid crystal panel 2 placed on the temporary placement table 7. Further, the ionizer 11 is disposed at the same position as the temporary placement table 7 in the front-rear direction. The ionizer 11 is disposed on the right oblique lower side of the temporary placement table 7, and is disposed on the oblique lower side of the liquid crystal panel 2 placed on the temporary placement table 7.
The ion generator 11 is disposed such that the longitudinal direction of the head unit of the ion generator 11 formed in a rod shape coincides with the front-rear direction. The ionizer 11 ejects ions toward the upper left oblique side. That is, the ion generator 11 sprays ions toward the lower surfaces of the two liquid crystal panels 2 placed on the temporary placement table 7, and supplies the ions toward the lower surface side of the liquid crystal panel 2. That is, the ion generator 11 supplies ions obliquely upward toward the lower surface of the liquid crystal panel 2 placed on the temporary placement stage 7. As described above, the temporary placement platform 7 of the present embodiment serves as a platform for charge removal for removing charge from the liquid crystal panel 2.
The ionizer 12 is disposed between the temporary placement platform 7 and the robot 9 in the left-right direction. Further, the ionizer 12 is disposed above the robot 9. Further, the ionizer 12 is disposed at the same position as the robot 9 in the front-rear direction. The ion generator 12 is disposed such that the longitudinal direction of the head unit of the ion generator 12 formed in a rod shape coincides with the front-rear direction. The ionizer 12 is fixed to a frame of the conveyance system 1, which is not shown.
The ionizer 12 ejects ions downward. Further, the ionizer 12 is disposed in an operation path of the robot 9 (specifically, an operation path of the panel holding portion 25a of the robot 9, that is, a path through which the robot 9 conveys the liquid crystal panel 2). As will be described later, the ion generator 12 sprays ions onto the upper surface of the liquid crystal panel 2 held by the panel holding portion 25a of the robot 9 and stopped for a predetermined time below the ion generator 12, and supplies the ions to the upper surface side of the liquid crystal panel 2.
The ionizer 13 is disposed at substantially the same position as the cartridge 5 (i.e., substantially the same position as the panel disposition portion 4) in the left-right direction. Further, the ionizer 13 is disposed above the cartridge 5. Further, the ionizer 13 is disposed slightly behind the cartridge 5. The ionizer 13 is disposed so that the longitudinal direction of the head unit of the ionizer 13 formed in a bar shape coincides with the left-right direction. The ionizer 13 ejects ions downward. Further, the ionizer 13 is fixed to a frame of the conveyance system 1, which is not shown, in the same manner as the ionizer 12.
(carrying operation of liquid Crystal Panel in carrying System)
In the transport system 1, the robot 9 transports the liquid crystal panel 2 from the panel arrangement portion 4 (specifically, the cassette 5) toward the temporary placement platform 7. When the panel holding portion 25a of the robot 9 (specifically, the adsorption pad of the panel holding portion 25 a) adsorbs the liquid crystal panel 2 accommodated in the cassette 5 and carries out the liquid crystal panel 2 from the panel arrangement portion 4, the ion generator 13 emits ions downward. When the robot 9 conveys the liquid crystal panel 2 from the panel arrangement portion 4 toward the temporary placement platform 7, the panel holding portion 25a of the robot 9 sucks and holds the lower surface of the liquid crystal panel 2.
The panel holding portion 25a of the robot 9 holding the liquid crystal panel 2 is stopped for a predetermined time below the ionizer 12 that ejects ions downward while the liquid crystal panel 2 is being transported from the panel arrangement portion 4 to the temporary placement table 7. That is, the liquid crystal panel 2 is stopped for a predetermined time at the ion supply position SP at which the ion generator 12 supplies ions while being transported from the panel arrangement portion 4 to the temporary placement platform 7.
Specifically, the liquid crystal panel 2 stops at the ion supply position SP for about several seconds (for example, about 2 seconds to 5 seconds) while being transported from the panel arrangement portion 4 to the temporary placement platform 7. The stop time of the liquid crystal panel 2 at the ion supply position SP is set by the control program of the robot 9. The ionizer 12 sprays ions onto the upper surface of the liquid crystal panel 2, which is held by the panel holding portion 25a of the robot 9 and stopped for a predetermined time at the lower side of the ionizer 12, and supplies the ions toward the upper surface side of the liquid crystal panel 2.
After stopping at the ion supply position SP for a predetermined time, the liquid crystal panel 2 transported by the robot 9 to the temporary placement platform 7 is placed on the temporary placement platform 7 such that the lower surface of the liquid crystal panel 2 held by the panel holding portion 25a of the robot 9 contacts the placement member 29. The ion generator 11 jets ions toward the lower surface of the liquid crystal panel 2 mounted on the temporary mounting table 7, and supplies the ions toward the lower surface side of the liquid crystal panel 2.
The robot 8 transports the liquid crystal panel 2 placed on the temporary placement platform 7 from the temporary placement platform 7 to the inspection apparatus 3. In the present embodiment, the robot 8 carries the liquid crystal panel 2 into the inspection apparatus 3 after a predetermined time has elapsed while the liquid crystal panel is placed on the temporary placement platform 7. Specifically, the robot 8 carries only the liquid crystal panel 2, which has been carried by the robot 9 and placed on the temporary placement platform 7, into the inspection device 3 after at least several seconds (for example, about 5 seconds) have elapsed.
The time for which the liquid crystal panel 2 is placed on the temporary placement platform 7 is set in the control program of the transport system 1, and the robot 8 operates according to the control program. Further, the ion generator 11 continuously supplies ions to the liquid crystal panel 2 placed on the temporary placement table 7 while the liquid crystal panel 2 is placed on the temporary placement table 7 and before being transported to the inspection apparatus 3.
(main effect of the present embodiment)
As described above, the conveyance system 1 according to the present embodiment includes: a temporary placement table 7 on which the liquid crystal panel 2 is placed before being carried out from the panel arrangement unit 4 and into the inspection device 3; and an ionizer 11 for removing electricity from the liquid crystal panel 2 placed on the temporary placement table 7, and the robot 8 carries the liquid crystal panel 2, which has been placed on the temporary placement table 7 and has elapsed a predetermined time, into the inspection device 3.
Therefore, in the present embodiment, the liquid crystal panel 2 after being subjected to the charge removal processing for a predetermined time by the ionizer 11 in the state of being placed on the temporary placement table 7 can be carried into the inspection apparatus 3. Therefore, in the present embodiment, the liquid crystal panel 2 carried into the inspection apparatus 3 can be effectively removed from the electricity, and as a result, the liquid crystal panel 2 that is originally a good product can be prevented from being determined as a defective product in the inspection apparatus 3 due to the influence of the static electricity.
In the present embodiment, the liquid crystal panel 2 is stopped for a predetermined time at the ion supply position SP at which the ion generator 12 supplies ions while being transported from the panel arrangement portion 4 to the temporary placement platform 7. Therefore, in the present embodiment, the neutralization of the liquid crystal panel 2 carried into the inspection apparatus 3 can be performed more efficiently. Therefore, in the present embodiment, it is possible to effectively prevent the liquid crystal panel 2, which is originally a good product, from being determined as a defective product in the inspection apparatus 3 due to the influence of static electricity.
In the present embodiment, when the liquid crystal panel 2 is placed on the temporary placement table 7, the lower surface of the liquid crystal panel 2 in contact with the placement member 29 of the temporary placement table 7 is charged by frictional electrification, but the ion generator 11 is disposed below the liquid crystal panel 2 placed on the temporary placement table 7, ejects ions toward the lower surface of the liquid crystal panel 2 placed on the temporary placement table 7, and supplies ions toward the lower surface side of the liquid crystal panel 2. Therefore, in the present embodiment, even if the lower surface of the liquid crystal panel 2 is charged by frictional electrification when the liquid crystal panel 2 is placed on the temporary placement table 7, the lower surface of the liquid crystal panel 2 placed on the temporary placement table 7 can be effectively removed from the electricity.
In the present embodiment, when the robot 9 conveys the liquid crystal panel 2 from the panel arrangement portion 4 to the temporary placement platform 7, the adsorption pad of the panel holding portion 25a of the robot 9 sucks and holds the lower surface of the liquid crystal panel 2, and when the liquid crystal panel 2 is placed on the temporary placement platform 7, the lower surface of the liquid crystal panel 2 is charged by peeling electrification, but the ion generator 11 ejects ions toward the lower surface of the liquid crystal panel 2 placed on the temporary placement platform 7 to supply ions toward the lower surface side of the liquid crystal panel 2. Therefore, in the present embodiment, even if the lower surface of the liquid crystal panel 2 is charged by peeling electrification, the lower surface of the liquid crystal panel 2 placed on the temporary placement table 7 can be effectively removed from the electricity.
In the present embodiment, the ion generator 11 is disposed on the obliquely lower side of the liquid crystal panel 2 placed on the temporary placement table 7, and supplies ions obliquely upward toward the lower surface of the liquid crystal panel 2 placed on the temporary placement table 7. Therefore, in the present embodiment, as compared with the case where the ionizer 11 is disposed directly below the liquid crystal panel 2, the entire lower surface of the liquid crystal panel 2 is easily and uniformly subjected to static elimination. In addition, in the present embodiment, interference of the member supporting the temporary placement platform 7 with the ionizer 11 is easily prevented. Further, if the ion generator 11 is disposed directly below the liquid crystal panel 2, the liquid crystal panel 2 is likely to float from the temporary placement table 7 due to the influence of the ions ejected from directly below, but in the present embodiment, the ions are ejected obliquely upward toward the lower surface of the liquid crystal panel 2 placed on the temporary placement table 7, and therefore the liquid crystal panel 2 is less likely to float from the temporary placement table 7.
In the present embodiment, the mounting member 29, which is in contact with the liquid crystal panel 2 mounted on the temporary mounting table 7, is made of a hard material. Therefore, in the present embodiment, the deformation of the mounting member 29 when the liquid crystal panel 2 is mounted on the temporary mounting platform 7 can be prevented. Therefore, in the present embodiment, the electrification of the liquid crystal panel 2 due to the frictional electrification when the liquid crystal panel 2 is placed on the temporary placement table 7 can be suppressed.
In the present embodiment, the robot 8 transports the liquid crystal panel 2 from the temporary placement platform 7 to the inspection device 3, and the robot 9 transports the liquid crystal panel 2 from the panel arrangement portion 4 to the temporary placement platform 7. Therefore, in the present embodiment, the liquid crystal panel 2 can be simultaneously conveyed from the panel arrangement portion 4 to the temporary placement platform 7 and the liquid crystal panel 2 can be simultaneously conveyed from the temporary placement platform 7 to the inspection device 3. Therefore, in the present embodiment, the cycle time of the conveyance system 1 can be shortened.
(other embodiments)
The above embodiment is an example of a preferable embodiment of the present invention, but is not limited thereto, and various modifications can be made within a range not changing the gist of the present invention.
In the above embodiment, the ionizer 11 may be disposed directly below the liquid crystal panel 2 placed on the temporary placement table 7. In the above embodiment, the ionizer 11 may be disposed on the obliquely upper side of the liquid crystal panel 2 placed on the temporary placement table 7, or may be disposed directly above the liquid crystal panel 2 placed on the temporary placement table 7. In this case, the ion generator 11 supplies ions to the upper surface side of the liquid crystal panel 2 mounted on the temporary placement stage 7.
In the above embodiment, an ionizer that ejects ions downward may be disposed in the operation path of the panel holding portion 25a of the robot 8 (i.e., the path in which the robot 8 conveys the liquid crystal panel 2). In this case, the panel holding portion 25a of the robot 8 holding the liquid crystal panel 2 is stopped for a predetermined time below the ionizer, for example, while the liquid crystal panel 2 is being transported from the temporary placement platform 7 to the inspection device 3.
In the embodiment, the mounting member 29 may be made of conductive polyetheretherketone and grounded. In this case, the liquid crystal panel 2 can be prevented from being charged due to frictional electrification when the liquid crystal panel 2 is placed on the placement member 29. In the above embodiment, the mounting member 29 may be made of a hard material made of metal. In this case, the mounting member 29 is preferably grounded. The mounting member 29 may be made of a soft material such as rubber.
In the above embodiment, when the robot 9 conveys the liquid crystal panel 2 from the panel arrangement portion 4 toward the temporary placement platform 7, the panel holding portion 25a of the robot 9 may attract and hold the upper surface of the liquid crystal panel 2. In this case, for example, the ionizer 12 is disposed so as to eject ions upward, and the panel holding portion 25a of the robot 9 holding the liquid crystal panel 2 is stopped for a predetermined time above the ionizer 12 ejecting ions upward while the liquid crystal panel 2 is being conveyed from the panel disposing portion 4 toward the temporary placement table 7.
In the above embodiment, the panel holding portion 25a of the robot 9 holding the liquid crystal panel 2 may pass under the ionizer 12 without stopping for a predetermined time under the ionizer 12 while the liquid crystal panel 2 is being conveyed from the panel arrangement portion 4 to the temporary placement table 7. In the above embodiment, the transport system 1 may not include at least one of the ionizer 12 and the ionizer 13.
In the above embodiment, one robot may carry the liquid crystal panel 2 from the panel arrangement portion 4 to the temporary placement platform 7 and carry the liquid crystal panel 2 from the temporary placement platform 7 to the inspection apparatus 3. For example, the robot 8 may carry the liquid crystal panel 2 out of the panel arrangement unit 4, transport the liquid crystal panel to the temporary placement platform 7, and carry the liquid crystal panel 2 placed on the temporary placement platform 7 into the inspection apparatus 3.
In the embodiment, the panel holding mechanism 25 may include two panel holding portions 25 a. That is, the panel holding mechanism 25 may hold two liquid crystal panels 2. In the above embodiment, the processing device 3 is a lighting inspection device that performs lighting inspection of the liquid crystal panel 2, but the processing device 3 may be a device other than the lighting inspection device that performs predetermined processing on the liquid crystal panel 2.
In the above embodiment, at least either one of the robot 8 and the robot 9 may be a vertical articulated robot other than six axes, may be a horizontal articulated robot, or may be a so-called parallel robot. In the above embodiment, the display panel conveyed by the conveying system 1 is the liquid crystal panel 2, but the display panel conveyed by the conveying system 1 may be a display panel other than the liquid crystal panel 2. For example, the display panel conveyed by the conveyance system 1 may be an organic Electroluminescence (EL) panel.
Claims (9)
1. A conveyance system that conveys a display panel between a processing apparatus that performs processing of the display panel and a panel arrangement unit that arranges the display panel before the processing by the processing apparatus, the conveyance system comprising at least:
a robot that carries the display panel into the processing device;
a temporary placement platform on which the display panel is placed before being carried out of the panel arrangement unit and into the processing apparatus; and
and an ionizer configured to remove electricity from the display panel placed on the temporary placement stage.
2. Handling system according to claim 1,
the robot carries the display panel into the processing apparatus after a predetermined time has elapsed while the display panel is placed on the temporary placement platform.
3. Handling system according to claim 1 or 2,
the ion generator is disposed below the display panel mounted on the temporary mounting stage and supplies ions toward a lower surface of the display panel mounted on the temporary mounting stage.
4. Handling system according to claim 3,
the ion generator is disposed on a lower side of the display panel placed on the temporary placement stage, and supplies ions toward an upper side of the display panel placed on the temporary placement stage.
5. Handling system according to any of claims 1 to 4,
the temporary placement platform includes a placement member that is in contact with a lower surface of the display panel placed on the temporary placement platform, and
the carrier member comprises a hard material.
6. The handling system according to claim 5,
the carrier member comprises polyetheretherketone.
7. Handling system according to any of claims 1 to 6,
comprises a second ionizer for removing electricity from the display panel in the middle of the transportation of the display panel from the panel arrangement part to the temporary placement platform, and
the display panel stops for a predetermined time at an ion supply position where the second ionizer supplies ions while being transported from the panel arrangement section toward the temporary placement table.
8. Handling system according to any of claims 1 to 7,
comprises a second robot for conveying the display panel from the panel arrangement part to the temporary placement platform
The robot carries the display panel from the temporary placement platform toward the processing apparatus.
9. Handling system according to any of claims 1 to 8,
the processing device is a lighting inspection device that performs lighting inspection on the display panel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018143341A JP7208733B2 (en) | 2018-07-31 | 2018-07-31 | Conveyor system |
| JP2018-143341 | 2018-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110780470A true CN110780470A (en) | 2020-02-11 |
Family
ID=69383937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910692292.2A Pending CN110780470A (en) | 2018-07-31 | 2019-07-29 | Conveying system |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP7208733B2 (en) |
| CN (1) | CN110780470A (en) |
| TW (1) | TW202007619A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022059214A (en) * | 2020-10-01 | 2022-04-13 | 日本電産サンキョー株式会社 | Carrier system |
| JP2022131673A (en) * | 2021-02-26 | 2022-09-07 | 日本電産サンキョー株式会社 | processing system |
| JP2022131436A (en) * | 2021-02-26 | 2022-09-07 | 日本電産サンキョー株式会社 | industrial robot |
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Also Published As
| Publication number | Publication date |
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| TW202007619A (en) | 2020-02-16 |
| JP2020021793A (en) | 2020-02-06 |
| JP7208733B2 (en) | 2023-01-19 |
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