JP2011191514A - Apparatus for edge cut machining on substrate of liquid crystal display panel prior to uv curing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cut an edge of a substrate of a liquid crystal display (LCD) panel prior to UV curing, without adding an excess stress on a liquid crystal substrate before a polymer alignment processing. <P>SOLUTION: A carry-in path A, tables B arranged in parallel to one another and having a group of small holes 1 for ejecting air for floatation and suction for holding, and a carry-out path C are arranged in series. A substrate X is transferred from the carry-in path to the tables by use of a drawing pawl 21, a substrate on the tables is transferred to the carry-out path by use of an ejecting pawl 22, the lower face at an edge of a CF plate that constitutes the substrate is scribed with a cutter, and the substrate is split at the scribed portion by a twist-splitting device H. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a processing apparatus for cutting an edge of a substrate before LCD panel UV curing.

  It is already known as a prior art for cutting the edge of a glass substrate (see Patent Document 1).

JP 2010-26267 A

  By the way, according to the processing method of Patent Document 1, a cutting line is put into a glass substrate by a cutter, and the cutting line is divided by applying stress of a cutting means.

  When such a method is employed for edge cutting of the substrate before curing the LCD panel UV, excessive stress is applied to the liquid crystal substrate before polymer alignment treatment, and the edge cutting cannot be performed, resulting in defective products. That is, it is not possible to perform edge cutting of the substrate before LCD panel UV curing.

  Therefore, the present invention is to enable processing without applying extra stress to the liquid crystal substrate before the polymer alignment treatment in processing of edge cutting.

  In order to solve the above-described problems, the present invention provides a carry-in path for supplying a substrate before curing the LCD panel UV, and a large number of parallel airflow along the carry-in direction in front of the carry-in path and the floating air of the board that receives the load. A parallel table having a group of small holes for ejecting the substrate and holding and sucking the substrate, slide means provided to slide the tables on both sides of the parallel toward and away from the center table, and an edge provided in front of the table An unloading path provided to unload the cut substrate, a cart that travels in the front-rear direction by the traveling means on both sides of the travel path of the substrate, and a moving means that moves up and down from the standby position by the lifting means to the cart Provided to clamp both ends of the leading edge of the substrate on the carry-in path and clamp both ends of the trailing edge of the floating substrate on the table. A projecting claw, an alignment means provided to align the substrate on the table, a camera provided to read the alignment mark on the substrate, an arm in the front-rear direction between the center table, Alignment claws provided to clamp the front and rear edges of the substrate at both ends of the arm, lifting and lowering means for raising the arm from the standby position to the clamping position, and alignment control as the alignment mark is read by the camera An alignment device comprising a swing swinging means for swinging and swinging the arm, a cutter carriage provided so as to travel in the front-rear direction by the travel means on both sides of the suction holding substrate on the table, and ascending and descending to the cutter carriage It is raised by the means and comes into contact with the lower edge of the CF plate constituting the substrate. A side carriage provided on both sides of the suction holding substrate on the table so as to approach and separate from the edge of the substrate by moving means, and an upper surface of the TFT plate of the substrate mounted on the side carriage. A torsional folding device composed of a presser bar material that comes into contact with the edge portion by the action of the elevating means and a folding bar material that makes contact with the edge portion outside the scribe line on the lower surface of the CF plate of the substrate by the action of the elevating means The structure which consists of is adopted.

  Further, a configuration is adopted in which a camera that reads a scribe line by the cutter is mounted in the vicinity of the cutter.

  Furthermore, the structure which provided the suction box which attracts | sucks the cullet which generate | occur | produces by scribing is employ | adopted on the scribe direction side of the said cutter.

  As described above, according to the edge cut processing apparatus for the LCD panel UV curing substrate of the present invention, both ends of the front edge of the substrate on the carry-in path are clamped by the pulling claws, and both ends of the trailing edge of the processed floating substrate on the table are obtained. The part is clamped by a discharge claw and transported from the carry-in path to the table and from the table to the carry-out path, so that the liquid crystal substrate before the polymer alignment treatment is transported without stress, and the lower surface of the substrate is placed on the table. Suction and hold, scribe with the cutter under the holding condition, and then contact the presser bar material to the upper surface of the TFT plate of the substrate, and contact the folding bar material to the lower surface of the CF plate of the substrate, Since the edge of the edge of the CF plate is split by twisting with a bar material splitting device, the edge processing is performed without applying stress before the polymer orientation treatment as described above. It is possible.

  And since the alignment mark is read by the camera and the substrate is aligned by the alignment device, there is no occurrence of defective edge processing, and the table on both sides is slid by the sliding means to support the portrait and landscape orientation of the substrate. it can.

  Further, since the scribe line is read by the camera, it is possible to eliminate defective processing of the scribe line.

  Furthermore, the cullet generated during scribing can be sucked by a suction box that travels with the cutter, and the cullet on the substrate surface can be removed.

FIG. 1 is a plan view showing a first embodiment of the present invention. FIG. 2 is an enlarged side view showing the nail portion. FIG. 3 is a longitudinally enlarged front view of the above. FIG. 4 is an enlarged side view showing a claw alignment roller. FIG. 5 is an enlarged side view showing the alignment apparatus. FIG. 6 is an enlarged side view showing a split portion. FIG. 7 is an enlarged front view of the above. FIG. 8 is an enlarged side view of portions of the alignment roller and the folding device. FIG. 9 is a longitudinally enlarged front view showing the scribe cutter. FIG. 10 is a longitudinally enlarged front view showing a main part of the folding device. FIG. 11 is a longitudinally enlarged front view showing suction of cullet. FIG. 12 is a side view showing the action of the nail. FIG. 13 is a longitudinally enlarged front view showing the action of folding. FIG. 14 is a longitudinally enlarged front view of the substrate.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  The first embodiment is shown in FIG. 1 to FIG. 10, wherein A is a carry-in path for supplying the substrate X before curing the LCD panel UV, and B is arranged in parallel along the carry-in direction in front of the carry-in path A. A parallel table having a group of small holes for ejecting the floating air of the substrate X to be loaded and holding and sucking the substrate X, C carries the substrate X (edge processed) on the parallel table B forward and receives it. It is a carry-out route.

  In the illustrated case, the carry-in path A and the carry-out path C use roller conveyors, but are not limited thereto.

  In the illustrated case, the parallel table B is formed by arranging hollow horizontally long boxes 2 in parallel and providing innumerable small holes 1 on the top wall of the boxes 2.

  Then, air is supplied to the pipes and hoses (not shown) connected so as to communicate with each box 2 by the operation of the pump, the substrate X is levitated by the air ejected from the small holes 1, and the boxes are operated by the operation of the pump. The substrate X is sucked and held on the upper surface of the box 2 of the table B by sucking the inside of the table B.

  The table B on both sides is slid toward and away from the table B on the center side by the slide means D.

  As the slide means D, for example, as shown in FIG. 7, the slider 6 of the carriage 5 is slidably engaged with the rail 4 on the base 3 and supported via the legs 7 on the carriage 5. A table B is mounted on the horizontal frame 15, and a male screw 9 that is reversibly driven by the operation of the motor 8 installed on the base 3 is screwed into a female screw 10 supported by the carriage 5. At the same time, the side table B is slid to cope with fluctuations in the width between both side edges of the substrate X as well as the vertically long substrate X and the horizontally long substrate X.

  As shown in FIG. 14, the substrate X includes an upper TFT plate 11 and a lower CF plate 12 that face each other in the vertical direction, and a set of two strips interposed inside each edge portion of the TFT plate 11 and the CF plate 12. And a UV 14 sealed between the TFT plate 11 and the CF plate 12 inside the seal material 13.

  In addition, a carriage 16 that travels in the front-rear direction by travel means E is provided on both sides of the travel path of the substrate X.

  The carriage 16 is configured such that the carriage 16 slides by slidably engaging a slider 18 provided on the carriage 16 with a horizontal rail 17 provided on the horizontal frame 15.

  A primary side operating element and a secondary side stator of the linear motor as the traveling means E are provided between the horizontal frame 15 and the carriage 16, but the invention is not limited, and the carriage 16 is reciprocated by other configurations. May be.

  Further, the carriage 16 is lifted from the standby position to the position of the substrate X by a lifting / lowering means 19 such as a cylinder, and is retracted to clamp both ends of the front edge of the substrate X on the loading path A by a longitudinal movement means 20 such as a cylinder. Dispensing pawls 22 for clamping the pawl 21 and both ends of the rear edge of the substrate X on the table B are provided.

  Two carriages 16 are arranged side by side and are moved to a certain extent in the approaching and separating directions by the moving means 20, and the pulling claws 21 for clamping are moved to the front edge of the substrate X on the carry-in path A along with the sliding in the separating direction. The clamping and paying claw 22 is fitted to the rear edge of the substrate X on the table B, and the drawing claw 21 and the discharging claw 22 are closed by the action of the cylinder 23 to clamp the substrate X.

  Then, by driving the traveling means E in the forward direction, the substrate X on the carry-in path A is placed on the table B (at this time, the substrate X is placed on the box 2 of the table B by the ejection of air from the small holes 1 group. The substrate X is lifted so that the UV 14 is not stressed, and the substrate X on the table B is lifted (the substrate X is lifted in the same manner as described above so that the UV 14 is not stressed). Yes) pays out to carry-out path C.

  When configured as described above, as shown in FIG. 12 (a), the retracting claw 21 and the payout claw 22 at the standby position are raised as shown in FIG. The carriage 16 is caused to travel slightly forward by the action.

  Then, as shown in FIG. 12C, the trailing edge of the substrate X on the table B is chucked by the discharge claw 22.

  Next, the carriage 16 is moved backward by the extending action of the moving means 20, and the front edge of the substrate X on the carry-in path A is chucked by the retracting claw 21 as shown in FIG.

  Then, when the carriages 16 are moved forward by the traveling means E, the substrate X on the carry-in path A is pulled in and the substrate X on the table B is paid out.

  2 and 4, when the pulling claw 21 and the kicking claw 22 slide between the upper and lower claws of the pulling claw 21 and the kicking claw 22 by the extension action of the moving means 20, the edge of the substrate X Since the roller 25 which contacts is provided, the substrate X is aligned.

  Then, the substrate X delivered onto the table B is lowered from the standby position, and then aligned by the alignment rollers 26 that press against both side edges of the substrate X.

  Further, as shown in FIG. 5, the middle of the arm 85 is supported by a turning support shaft 86 as an alignment device F arranged on the intermediate table B so that both ends thereof are directed in the front-rear direction, and the support shaft 86 is turned by a reversible motor 99. In addition, the arm 85 is clamped at the end of the loading path A side of the arm 85 by a claw 90 that opens and closes the rear edge of the substrate X by a cylinder 89 on a base 88 that is lifted and lowered by a lifting means 87 such as a cylinder or a servomotor. The front end of the unloading path C on the side of 85 is moved in the front-rear direction by an advancing / retreating means 91 such as a cylinder or a servo motor, and is moved up and down by an elevating means 92 similar to the elevating means 87 for clamping the leading edge of the substrate X A claw 95 that is opened and closed by a cylinder 94 is provided.

  Then, the alignment mark of the board | substrate X paid out on the table B is read with the camera P, and the board | substrate X is aligned by carrying out the reversible operation of the motor 99 by numerical control.

  By moving the claw 95 side in the front-rear direction, it is possible to cope with variations in the length of the substrate X in the front-rear direction, and the alignment roller 98 provided between the claws 90, 95 is moved in front of the substrate X. Accurate alignment can be performed by contacting the edge and the rear edge.

  Of course, the swing swing of the arm 85 is not limited to the motor 99 system.

  Further, on both sides of the table B, a cutter carriage 36 that reciprocates in the front-rear direction by a traveling means E is provided, and a lifting body 38 that is lifted and lowered by a lifting means 37 such as a cylinder or a servomotor is provided on the cutter carriage 36. A cutter 39 for scribing the lower surface of the edge of the CF plate 12 constituting the substrate X is provided at the upper end of the elevating body 38.

  Needless to say, upward force is applied to the lift 38 by the cylinder 40 in the cutter 39.

  Similarly to the carriage 16, the cutter carriage 36 is slidably engaged with the rails 17 provided on the horizontal frame 15, and the slider 18 provided on the cutter carriage 36 is slidable. Similarly, the horizontal frame 15 and the cutter carriage 36 are provided with linear motors composed of primary side operating elements and secondary side stators.

  Further, as shown in FIGS. 6 and 7, a pillar material 44 is erected on the carriages 5 on both sides, and an upper surface rail 46 of a base 45 horizontal to the upper end of the pillar material 44 is provided. The slider 48 provided on the lower surface of the slider 45 is slidably engaged, and the male screw 50 driven by the motor 49 installed on the base 45 is screwed into the female screw 51 supported on the lower surface of the moving table 47 for movement. The slide means G of the base 47 is configured.

  In addition, a twist-and-break device H is provided between the two movable tables 47 facing each other in the front-rear direction.

  The torsional splitting device H is movably installed on a swinging body 53 that supports the center between the upper and lower sides via a support shaft 52 so as to be swingable on opposite side surfaces of both the moving bases 47 and an upper surface base 54 of the moving base 47. Servo motors and cylinder expansion / contraction means 55 that are movably continuously extended on the upper end of the rocking body 53, and upper lifting / lowering bodies by servo motors and cylinders respectively provided on the upper and lower sides of the front and rear facing surfaces of the rocking bodies 53. 56 and lower elevating body 57, upper cross member 58 supported at both ends by upper and lower elevating bodies 56 and 56 opposed in the front-rear direction, and a servo motor or cylinder attached to a bracket 59 attached to the lower surface of this upper cross member 58 The slider 61 that slides toward and away from the side edge of the table B by the action of the slide action body 60 and the presser bar 42 supported on the inner end of the slider 61 face each other in the front-rear direction. The lower cross member 62 in section lifting body 57, 57 was supported at both ends, and a bend-receiving bar 63 is supported on the upper surface of the lower horizontal member 62.

  Note that the upper surface of the folding receiving bar 63 (the surface that contacts the lower surface of the CF plate 12) is twisted and bent due to the upper end of the swinging body 53 swinging outward by the action of the expansion / contraction means 55. As shown in FIG. 8, it is inclined outward (in the direction opposite to the table B) so that twisting and breaking along the scribe line of the CF plate 12 acts more smoothly.

  Each alignment roller 26 is attached to the lower surface of a vertically extending and contracting acting body 64 such as a servo motor or a cylinder supported by the upper cross member 58 so as to move up and down between a pressing position and a retracted position.

  8 and 13, when the brush 70 is provided on the slider 61, the cullet on the upper surface of the receiving bar 63 is cleaned and the split end material Y on the receiving bar 63 is placed in the receiving box Z. Can be discharged.

  Next, edge cutting will be described with reference to FIG.

  As shown in FIG. 13A, the lower lifting body 57 is acted on the lower surface of the edge of the CF plate 12 of the substrate X to raise the receiving bar 63 and the upper lifting body 56 is acted on to raise the upper surface of the edge of the TFT plate 11. The presser bar 42 is moved downward.

  Next, when the receiving bar 63 is tilted as shown in FIG. 13B while swinging the swinging body 53 by operating the expansion / contraction means 55, the cutter 39 provided on the lower surface of the CF plate 12 is provided. A scribe line S is broken.

  At this time, the UV 14 constituting the substrate X is folded without applying stress.

  Then, as shown in FIG. 13C, the presser bar 42 is raised by the action of the upper elevating body 56, and the receiving bar 63 is lowered by the action of the lower elevating body 57.

  Thereafter, the slider 61 is moved forward, and the folded end material Y on the receiving bar 63 is discharged while the cullet is cleaned by the brush 70.

  Next, a second embodiment will be described based on FIGS.

  A suction box 82 having a suction port 81 on the lower surface side of the CF plate 12 is provided on the lower side of the CF plate 12 on the rear side of the cutter carriage 36 in the scribing direction of the cutter 39.

  A suction hose (not shown) is connected to the exhaust port 83 of the suction box 82.

  Then, the cullet when scribed by the cutter 39 can be sucked into the suction box 82.

X board A carry-in path B table C carry-out path D slide means E travel means F alignment device G slide means H twist breaker 1 small hole 2 box 3 base 4 rail 5 carriage 6 slider 7 leg material 8 motor 9 male screw 10 female Screw 11 TFT plate 12 CF plate 13 Sealing material 14 UV
DESCRIPTION OF SYMBOLS 15 Horizontal frame 16 Bogie 17 Rail 18 Slider 19 Lifting means 20 Moving means 21 Retraction claw 22 Discharging claw 23 Cylinder 25 Roller 26 Roller 36 Cutter bogie 37 Lifting means 38 Lifting body 39 Cutter 40 Cylinder 42 Presser bar 44 Base material 45 Base 46 Rail 47 Moving base 48 Slider 49 Motor 50 Male screw 51 Female screw 52 Support shaft 53 Oscillating body 54 Base 55 Extending / contracting means 56 Upper lifting / lowering body 57 Lower lifting / lowering body 58 Upper lateral member 59 Bracket 60 Slide acting body 61 Slider 62 Lower lateral member 63 Receiving bar 64 Telescopic action body 70 Brush 81 Suction port 82 Suction box 85 Arm 86 Support shaft 87 Lifting means 88 Base 89 Cylinder 90 Claw 91 Advancement / retraction means 92 Lifting means 93 Base 94 Cylinder 95 Claw 98 Low 99 motor

Claims (3)

  A carry-in path for supplying a substrate before UV curing of the LCD panel, and a plurality of small holes for discharging the floating air of the substrate to be received and holding and sucking the substrate are arranged in parallel along the carry-in direction in front of the carry-in path. A parallel table, slide means provided to slide the tables on both sides of the parallel toward and away from the center table, and a carry-out path provided to carry out an edge-cut substrate provided in front of the table. A carriage that travels in the front-rear direction by the traveling means on both sides of the travel path of the board, and is lifted from the standby position by the lifting means to the carriage, and clamps both ends of the front edge of the substrate on the carry-in path by the longitudinal movement means The pull-in claw and the discharge claw provided to clamp both ends of the trailing edge of the table floating substrate and the substrate on the table are Alignment means provided to calibrate, a camera provided to read the alignment mark on the substrate, an arm in the front-rear direction between the center table, and the front and rear edges of the substrate clamped to both ends of the arm An alignment claw provided so as to lift, an elevating means for raising the arm from a standby position to a clamp position, and a swing swinging means for swinging and swinging the arm so as to perform alignment control as the alignment mark is read by the camera An alignment apparatus comprising: a cutter carriage provided on both sides of the suction holding substrate on the table so as to run in the front-rear direction by a running means; and a CF which is lifted by the lifting means on the cutter carriage to constitute the substrate. Cutter provided to contact the lower edge of the plate and suction on the table A side carriage provided on both sides of the holding substrate so as to approach and separate from the edge of the substrate by the moving means, and an edge portion of the upper surface of the TFT plate of the substrate mounted on the side carriage is brought into contact by the action of the raising and lowering means. Edge cutting of a substrate before UV curing of an LCD panel comprising a press bar material and a twisting and folding device composed of a folding bar material that abuts on the outer edge of the scribe line on the lower surface of the CF plate of the substrate by the action of an elevating means Processing equipment.   The apparatus for edge-cutting the substrate before LCD panel UV curing according to claim 1, wherein a camera that reads a scribe line by the cutter is mounted at a position near the cutter.   2. The edge cut processing apparatus for an LCD panel UV-cured substrate according to claim 1, wherein a suction box for sucking a cullet generated by the scribe is provided on the rear side of the cutter in the scribe direction.

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