KR102620946B1 - Automatic bonding device of cover glass and panel and the method thereby - Google Patents

Abstract

The present invention relates to an automatic bonding device, and more specifically, to a method for automatically bonding a display panel and a cover glass. An automatic bonding device for a cover glass and a panel according to the present invention includes a lower chamber in which the cover glass is placed; a lower chamber transfer unit for continuously horizontally moving the plurality of lower chambers at regular intervals; It is spaced apart above the lower chamber transfer unit and is operated to lift and lower the panel, and includes an upper chamber for sequentially vacuum bonding the panel to the cover glass seated in the continuously moving lower chamber.

Description

Automatic bonding device of cover glass and panel and the method thereby}

The present invention relates to an automatic bonding device, and more specifically, to a method for automatically bonding a display panel and a cover glass.

Recently, displays have been actively applied to automotive interior electronic products. The interior of a car is mostly made up of curved surfaces. In order to apply a display panel (hereinafter referred to as 'panel') such as LCD or OLED to such a curved surface, the panel must be manufactured by bonding to the inside of a curved cover glass with a curved surface. In the conventional cover glass and panel bonding process, while the positions of the upper chamber and lower chamber are fixed, cover glass is supplied from the outside to the lower chamber, and after supplying the panel to the upper chamber, the upper chamber is lowered to connect the upper chamber and the lower chamber. The cover glass and panel are bonded to each other while the chamber is bonded and the inside is maintained in a vacuum. After bonding, the upper chamber is raised, the bonded cover glass and panel assembly is picked up again, and taken out. In other words, the position of the chamber is fixed and the parts are moved, so the cover glass and panel, which are sequentially supplied in large quantities, must be picked up and transported inside the chamber, and after cementing, the resulting product must be picked up again and transported to the outside. However, since the work time is relatively long, the equipment for picking up and transferring parts is complicated, and the number of times of picking up and transferring is large, there has been a problem in that defects due to surface damage to the panel or cover glass frequently occur.

Republic of Korea Patent No. 10-1631028

The present invention was created to solve the problems of the conventional cover glass and panel bonding process as described above. By minimizing the pick-up and transfer work of the cover glass and panel and continuously supplying the cover glass, the time required for the bonding process is reduced. The purpose is to provide an automatic cementing device and method that can minimize damage to the surface of parts. In addition, the purpose is to provide an efficient cementation device and method that can automatically and continuously perform pretreatment tasks such as peeling off the protective film attached to the surface of the panel and cover glass, cleaning impurities, and aligning before cementation, and the cementation process. do.

An automatic bonding device for a cover glass and a panel according to the present invention for achieving the above-described object includes a lower chamber in which the cover glass is mounted; a lower chamber transfer unit for continuously horizontally moving a plurality of lower chambers at regular intervals; It is spaced apart above the lower chamber transfer unit and is operated to lift and lower the panel, and includes an upper chamber for sequentially vacuum bonding the panel to the cover glass seated in the continuously moving lower chamber.

Here, the lower chamber is equipped with a cover glass jig formed to correspond to the curvature of the cover glass to adsorb and support the cover glass from the bottom.

In addition, the lower chamber is provided with a fixing chuck that grips and fixes the cover glass jig by pneumatic pressure from the lower part.

Additionally, the lower chamber transfer unit includes a first horizontal transfer module for horizontally transferring the lower chamber in one direction; a second horizontal transfer module disposed below the first horizontal transfer module and configured to transfer the lower chamber in a direction opposite to the first horizontal transfer module; Lifters are provided at both ends of the first horizontal transfer module and the second horizontal transfer module, respectively, and include lifters for lifting and lowering the lower chamber between the first horizontal transfer module and the second horizontal transfer module.

Here, the first horizontal transfer module and the second horizontal transfer module are preferably one selected from LMMT, linear motor, and conveyor belt.

Meanwhile, an automatic bonding device for a cover glass and a panel according to the present invention includes a cover glass supply unit that sequentially supplies the cover glass; a cover glass pretreatment unit that aligns the cover glass and peels off the protective film; a cover glass loading unit that transfers and supplies the cover glass that has passed the cover glass pretreatment unit to the lower chamber; a panel supply unit sequentially supplying panels to be bonded to the cover glass; a panel pre-processing unit that aligns the panel and peels off the protective film; It further includes a panel alignment transfer unit that matches the image orientation of the cover glass and transports and supplies the panel to the upper chamber.

Here, the cover glass preprocessing unit includes a first camera unit that captures an orientation image of the cover glass; a first cover glass transfer unit that holds the cover glass and transfers it in a horizontal direction, and aligns the cover glass based on the orientation image captured by the first camera unit; a first peeling unit that peels off the outer protective film of the cover glass; a cover glass inversion unit that rotates the cover glass by 180 degrees; a second peeling unit that peels off the inner protective film of the inverted cover glass; It includes a second cover glass transfer unit that grips and transfers the cover glass from which the protective film has been peeled.

And, it further includes a second camera unit for capturing an image of the orientation of the cover glass transported by the cover glass loading unit, wherein the panel alignment transfer unit measures the orientation of the panel of the cover glass captured by the second camera unit. Match the image orientation and feed it to the upper chamber.

Additionally, the cover glass loading unit is preferably a 6-axis articulated robot.

In addition, the panel pre-processing unit includes a third camera unit for capturing an orientation image of the panel; a panel loading unit that supports and fixes the panel from below, aligns the panel based on the orientation image of the panel captured by the third camera unit, and transports the panel in the horizontal direction; a panel transfer unit that absorbs and holds the panel mounted on the panel loading unit from above and transfers it; a panel transfer unit that suction-holds and transfers the panel transferred by the panel transfer unit from below; a third peeling unit that peels off the protective film attached to the panel; It includes a panel inversion unit that flips the panel up and down 180 degrees.

Here, the panel alignment transfer unit rotates the gripper in the θ direction to align the gripper that adsorbs and grips the upper part of the panel inverted by the panel inversion unit and the panel picked up and gripped by the gripper. It includes a DD motor for moving the gripper, a servomotor for moving the gripper in the X direction, and a linear motor for moving the gripper in the Y direction.

In addition, a fourth camera unit is provided in the transfer path of the panel align transfer unit to capture an orientation image of the panel being gripped and transferred by the panel align transfer unit, and the panel align transfer unit is equipped with the second camera. Based on the orientation image of the cover glass taken from the unit and the orientation image of the panel taken from the fourth camera unit, the panel is aligned to match the orientation of the cover glass and transported to the upper chamber.

Additionally, an upper chamber lifting module that lifts the upper chamber up and down; an adhesive chuck for gripping and fixing the panel inside the upper chamber; a diaphragm for pressurizing the cover glass; It further includes a pressing means for pressing the diaphragm with the cover glass.

Here, it further includes a jig replacement unit for replacing the cover glass jig inside the lower chamber, and the jig replacement unit is preferably a 6-axis articulated robot.

The automatic bonding method of cover glass and panels according to the present invention includes the steps of continuously supplying cover glass at regular intervals; A pretreatment step of peeling off the protective film attached to the surface of the supplied cover glass and cleaning the cover glass; Taking an orientation image of the cover glass; Continuously supplying panels at regular intervals; A pretreatment step of cleaning the panel and peeling off the protective film attached to the surface; taking an orientation image of the panel; Aligning and transporting the panel to match the orientation of the cover glass based on the captured image of the orientation of the cover glass and the panel; a lower chamber in which the cover glass is seated; The cover glasses are sequentially seated inside the lower chambers while continuously horizontally moving the plurality of lower chambers at regular intervals, and an upper chamber is disposed at a fixed position above the moving path of the lower chamber and accommodates the panel therein. sequentially vacuum bonding the panels to the cover glass seated in the lower chamber, which is continuously moved according to the lifting operation; It includes the step of withdrawing and discharging the cemented cover glass and panel assembly from the lower chamber.

According to the present invention as described above, the cover glass is seated in the continuously moving lower chamber, and the upper chamber in which the panel is mounted is disposed at a fixed position above the transfer path of the lower chamber, so that the upper chamber is raised and lowered according to the lifting operation of the upper chamber. By vacuum bonding the cover glass and panel, the pick-up and transfer work of the cover glass and panel is minimized, and the cover glass is supplied continuously, reducing the time required for the bonding process and minimizing damage to the surface of the part, and the panel and cover glass before bonding. It has the outstanding advantage of being able to automatically and continuously perform pretreatment and bonding processes such as peeling off the protective film attached to the surface, cleaning impurities, and aligning.

1 is a plan view of the overall configuration of the automatic cementing device according to the present invention;
Figure 2 is a side view of the cover glass pretreatment part of the automatic cementing device according to the present invention;
Figure 3 is a configuration diagram of the first cover glass transfer unit of the automatic cementing device according to the present invention;
Figure 4 is a configuration diagram of the first camera unit and the first barcode reader of the automatic joining device according to the present invention;
Figure 5 is a configuration diagram of the first peeling unit of the automatic cementation device according to the present invention;
Figure 6 is a configuration diagram of the cover glass reversal unit of the automatic cementing device according to the present invention;
Figure 7 is a side view of the cementation portion of the automatic cementation device according to the present invention;
Figure 8 is a configuration diagram of the lower chamber of the automatic cementing device according to the present invention;
Figure 9 is a configuration diagram of the lower chamber transfer unit of the automatic cementing device according to the present invention;
Figure 10 is a configuration diagram of the upper chamber of the automatic cementation device according to the present invention;
11 is a diagram showing the internal configuration of an upper chamber according to a preferred embodiment of the automatic cementing device according to the present invention;
12 is a configuration diagram of the panel supply line of the automatic joining device according to the present invention;
Figure 13 is a configuration diagram of the panel loading unit of the automatic cementing device according to the present invention;
Figure 14 is a configuration diagram of the panel alignment transfer unit of the automatic cementing device according to the present invention.

Hereinafter, the configuration and operation of the automatic cementation device and method according to the present invention will be described in detail with reference to the attached drawings and preferred embodiments.

As shown in Figure 1, the automatic cementing device according to the present invention includes a cover glass supply unit 100, a cover glass pretreatment unit 200, a cementation unit 300, a panel supply unit 400, a panel pretreatment unit 500, It includes a panel alignment transfer unit 600, a lower chamber 320, a lower chamber transfer unit, and an upper chamber 360.

The cover glass supply unit 100 is a part that continuously transports and supplies a plurality of cover glasses (CG) at regular intervals. For example, continuous transport equipment such as a conveyor belt or linear motor may be employed. Cover glass (CG) sequentially supplied from the cover glass supply unit 100 is sequentially supplied to the cover glass preprocessing unit 200, which will be described later.

The cover glass pretreatment unit 200 aligns the supplied cover glass (CG) and peels off the protective film (PF) attached to the surface. Figure 2 shows a side view of the cover glass preprocessing unit 200. As shown, the cover glass preprocessing unit 200 includes a first cover glass transfer unit 210, a first camera unit 220, a first barcode reader 230, a first peeling unit 240, and a cover glass. It includes a reversal unit 250, a second peeling unit 260, and a second cover glass transfer unit 270.

The first cover glass transfer unit 210 supports and fixes the cover glass (CG) transferred from the cover glass supply unit 100 from below and horizontally uses the first camera unit 220 and the first peeling unit 240 to be described later. As a transfer part, as shown in FIGS. 2 and 3, a vacuum pad 211, a horizontal arm 212, a first lifting member 214, a stage unit 216, and a first horizontal transfer member 218. Includes. The vacuum pad 211 adsorbs and supports the lower surface of the cover glass CG by vacuum suction, and a plurality of suction pads 211 are arranged vertically on the horizontal arm 212.

The horizontal arm 212 is formed to extend in the horizontal direction along the transfer direction (X direction) of the cover glass CG, as shown in (a) of FIGS. 2 and 3, and the upper part of the horizontal arm 212 A plurality of vacuum pads 211 are vertically arranged on the surface at regular intervals along the transfer direction of the cover glass (CG). The horizontal arm 212 is configured to be able to move up and down by the first lifting member 214. This moves to the height of the lower surface of the cover glass (CG) supplied from the cover glass supply unit 100, supports the cover glass (CG), and passes through the first camera unit 220 and the first peeling unit 240, which will be described later, and This is to adjust the height when delivering the cover glass (CG) to the cover glass inversion unit 250. Here, the first lifting member 214 is preferably composed of a servomotor and a ball screw, and is disposed in a vertical direction at the end of the horizontal arm 212 as shown. The first cover glass transfer unit 210 is provided with a plurality of sets consisting of a horizontal arm 212 equipped with a vacuum pad 211 and a first lifting member 214. As shown in (b) of FIG. 3, a plurality of sets of the horizontal arm 212 and the first lifting member 214 on which the vacuum pad 211 is mounted are arranged at regular intervals in the width direction, so that they are relatively Cover glass (CG) with a wide width can also be stably supported.

Meanwhile, the cover glass (CG) used in vehicle interior electronic products is mostly a curved cover glass with a curved surface, and as described above, each horizontal arm 212 is individually and independently raised and lowered by each first lifting member 214. Therefore, as shown in (c) of FIG. 3, the height of each horizontal arm 212 is adjusted according to the surface curvature of the cover glass CG, thereby smoothly supporting and fixing the curved cover glass CG. You can. When curved cover glass (CG) is supplied, the curvature information of the cover glass (CG) to be worked is input and stored in advance in the control unit, and when the corresponding curved cover glass (CG) is supplied, the control unit makes individual products according to the stored curvature information. The height of each horizontal arm 212 is independently adjusted by controlling the number of rotations of the servo motor of the first lifting member 214. Accordingly, the vacuum pad 211 provided on each horizontal arm 212 contacts the lower surface of the cover glass CG at a corresponding position, thereby enabling the curved cover glass CG to be firmly attracted and held.

The set of the horizontal arm 212 and the first lifting member 214 is fixedly installed on the lower stage unit 216, and the stage unit 216 is located at the bottom in the transfer direction (X direction) of the cover glass CG. It is horizontally transferred by the disposed first horizontal transfer member 218. Here, the stage unit 216 is preferably made of a flat plate member, and the first horizontal transfer member 218 is a linear motor. Meanwhile, the stage unit 216 itself operates in the It may consist of a first UVW stage 217 that can be moved, or a separate UVW stage may be additionally provided below the stage unit 216. Since this UVW stage is already known, detailed description will be omitted.

The first camera unit 220 is a cover glass (CG) transferred by the first cover glass transfer unit 210 to align the cover glass (CG) when the protective film (PF) of the cover glass (CG) is peeled off. This is a part for taking an orientation image, and as shown in FIG. 2, the transfer direction (X direction) of the cover glass (CG) is on the upper side of the cover glass (CG) transferred by the first cover glass transfer unit 210. It is arranged across in the orthogonal width direction (Y direction). Meanwhile, Figure 4 shows a top view (a) and a front view (b) of the first camera unit 220. As shown in FIG. 4, the first camera unit 220 includes a pair of first cameras 221 and second cameras 222 arranged side by side. The first camera 221 and the second camera 222 are moved by a second horizontal transfer member 224 arranged horizontally in the width direction (Y direction) perpendicular to the transfer direction (X direction) of the cover glass (CG). Each is configured to be able to move in both left and right directions. Here, the second horizontal transfer member 224 is composed of a servomotor and a ball screw, and the screw of the ball screw is provided with spirals with different directions around the center on both left and right sides, so that when the servomotor is driven, the first camera ( 221) and the second camera 222 are configured to move in opposite directions. In addition, a second lifting member 226 and a third lifting member 228 are coupled to the upper sides of the first camera 221 and the second camera 222, respectively, so that the first camera 221 and the second camera (222) is configured to be individually and independently elevated. Accordingly, when the curved cover glass (CG) is put in, under the control of the control unit, the first camera 221 and the second camera 222 are lifted and leveled corresponding to the curved shape of the cover glass (CG), thereby forming the cover glass. Collisions with (CG) are prevented. Here, the second lifting member 226 and the third lifting member 228 are also preferably composed of a servomotor and a ball screw.

The orientation image of the cover glass (CG) captured by the first camera unit 220 is transmitted to the control unit, and the control unit controls the first UVW stage 217 of the first cover glass transfer unit 210 to perform the first UVW stage 217, which will be described later. The cover glass (CG) is aligned to correspond to the clamp positions of the first peeling unit 240 and the second peeling unit 260.

Meanwhile, a first barcode reader 230 may be additionally provided on the rear side of the first camera unit 220. The first barcode reader 230 is placed on the upper side of the cover glass (CG) and moves in the Y direction by the third horizontal transfer member 232, reads the barcode attached to the cover glass (CG), and transmits product information to the control unit. Deliver. Accordingly, the control unit can perform product information management and process management according to the transmitted information.

The first peeling unit 240 is a part that peels off the protective film (PF) attached to one surface (outer surface) of the cover glass (CG), and as shown in Figures 1 and 2, the first peeling unit 240 is a part of the cover glass (CG). The protective film (outer shell) attached to the upper surface of the cover glass (CG) disposed on the upper side and transported by the first cover glass transfer unit 210 is peeled off. Figure 5 shows a top view (a) and a front view (b) of the first peeling unit 240. As shown, the first peeling unit 240 is provided with clamps 242 operated by air cylinders on the upper left and right sides of the cover glass CG, and the clamps 242 are connected to the fourth lifting member 244. ) is configured to be able to go up and down. In addition, a tension roller 248 is provided in the center to be able to be raised and lowered by the fifth lifting member 246. Through this configuration, the clamp 242 is moved downward to the left and right edges of the cover glass CG by the fourth lifting member 244 and then grips the handle portion protruding from the left and right edges of the protective film PF. . Then, the tension roller 248 is lowered by the fifth lifting member 246 and comes into contact with the central surface of the cover glass CG to which the protective film PF is attached, and is moved according to the operation of the fourth lifting member 244. As the clamp 242 rises, the protective film PF is peeled off from both edges. Finally, as the tension roller 248 is raised by the fifth lifting member 246, peeling of the protective film PF is completed. The peeled protective film (PF) falls downward and is recovered after the cover glass (CG) passes.

The cover glass inversion unit 250 is a part that inverts the cover glass (CG) up and down in order to peel off the protective film (endothelium) attached to the other side, that is, the lower surface, of the cover glass (CG), as shown in Figures 2 and 6. As shown, a horizontal arm 251 equipped with a vacuum pad 252, a sixth lifting member 253 that lifts the horizontal arm 251 up and down and consists of an air cylinder or a servomotor and a ball screw; , It includes a support bracket 254 on which the sixth lifting member 253 is mounted and supported, and a rotation bracket 255 coupled to the rear side of the support bracket 254. The rotating bracket 255 is composed of a horizontally arranged plate member, and one end is fixedly coupled to the rear side of the support bracket 254. A rotation axis 256 is coupled to the rotation bracket 255. The rotation shaft 256 is disposed across the upper side of the rotation bracket 245 in a direction perpendicular to each horizontal arm 251, and is coupled to the rotation bracket 255 by shaft brackets at both end sides. And, a reversal motor 257 that rotates the rotation shaft 256 is coupled to one end of the rotation shaft 256. The reversal motor 257 may be directly connected to the rotation shaft 256, or a reducer 258 may be additionally provided between the rotation shaft 256 and the reversal motor 257, as shown. In addition, a seventh lifting member 259 may be additionally provided on one side of the reversing motor 257 to lift and move the rotating bracket 255 up and down. Here, the seventh lifting member 259 may be an air cylinder or pneumatic cylinder. Through this configuration, as shown in FIG. 2, the upper surface of the cover glass CG supported by the first cover glass transfer unit 210 is moved by the vacuum pad 252 provided on the horizontal arm 251. After suction and holding, the rotation bracket 255 and the horizontal arm 251 are rotated according to the driving of the inversion motor 257 so that the lower surface of the cover glass CG is turned upward.

The second peeling unit 260 peels the protective film (PF) of the cover glass (CG) reversed by the cover glass inversion unit (250). Since the configuration of the second peeling unit 260 is the same as that of the first peeling unit 240, detailed description will be omitted.

The second cover glass transfer unit 270 is a part that grips and transfers the cover glass (CG) for which the peeling process has been completed, and as shown in FIG. 2, has the same structure as the first cover glass transfer unit 210 described above (second 1UVW stage (217) excluded) or may have the same structure as the cover glass reversal unit 250, and is supported by the cover glass reversal unit 250 and supported by the fourth horizontal transfer member 272 provided at the bottom. In the second peeling unit 260, the cover glass (CG) from which the protective film (PF) has been peeled is adsorbed and held from above and then transferred. Surface impurities on the transferred cover glass (CG) are then removed in a separately provided cover glass cleaning unit 280. In the cover glass cleaning unit 280, the cover glass (CG) can be cleaned while being transported by a conveyor belt or a separate transport means.

The cover glass (CG), which has completed pretreatment processes such as peeling and cleaning in the cover glass pretreatment unit 200, is bonded to the display panel (P) in the bonding unit 300. Figure 7 shows an overall side view of the cementation portion 300. As shown, the cementation unit 300 includes a cover glass loading unit 310, a lower chamber 320, a lower chamber transfer unit 330, a surface modification unit 340, a second camera unit 350, and an upper It includes a chamber 360.

The cover glass loading unit 310 is a part that picks up the cover glass (CG) that has passed through the cover glass cleaning unit 280 of the cover glass pretreatment unit 200 and supplies it to the lower chamber 320, which will be described later. As described above, it is preferable to consist of a 6-axis articulated robot. The arm of the 6-axis articulated robot is equipped with a vacuum suction pad (not shown) to suction and grip the bezel portion of the cover glass (CG) to seat and supply it to the lower chamber 320.

The lower chamber 320 is for vacuum bonding the cover glass (CG) and the panel (P) by joining with the upper chamber 360, where the cover glass (CG) is seated and the panel (P), which will be described later, is fixed. It may be comprised of an open enclosure or may be configured in the form of a flat pallet. Figure 8 shows a schematic diagram of this lower chamber 320. In Figure 8, the lower chamber 320 is shown as an example in the form of a pallet. As shown, the lower chamber 320 is provided with a cover glass jig 322 for fixing the cover glass CG. The cover glass jig 322 is configured so that the upper surface has a curvature corresponding to the curvature of the cover glass CG, and the cover glass CG is seated and supported on the upper side. And, the cover glass jig 322 is fixed to the lower chamber 320 by a fixing chuck 324. The fixed chuck 324 may be an air chuck operated by pneumatic pressure, and is preferably a zero point system module from AMF (http://www.spctech.co.kr/shop/item.php?it_id=060201A-4 It is recommended to use (reference). This zero point system is released when air is introduced and fixed when air is blocked. As shown in FIG. 8, the fixing chuck 324 is installed so that the lower side is embedded in the lower chamber 320 and the upper side is exposed so as to hold and fix the cover glass jig 322.

The lower chamber 320 is not fixed in a certain position, but a plurality of the lower chambers 320 are continuously transferred in the horizontal direction by the lower chamber transfer unit 330. The lower chamber transfer unit 330 is preferably configured as a Linear Moving Magnet Transfer (LMMT) system. The LMMT system is a system in which a coil to which power is applied as a stator is provided on the lower side and a magnet is provided on the upper side to transport goods horizontally by the interaction between the coil and the magnet. It is mainly used in the logistics process. Accordingly, in the present invention, an LMMT system is used to transport the lower chamber 320. A magnet is provided on the bottom of the lower chamber 320, and a coil module as a stator is formed linearly and long below the lower chamber 320 to attach to the coil. When current flows, the lower chamber 320 moves in the horizontal direction due to interaction with the magnet. Since this LMMT system is already known, a detailed description of its configuration will be omitted. However, in the present invention, as shown in FIGS. 7 and 9, a first horizontal transfer module 332 and a second horizontal transfer module 334 are used so that the plurality of lower chambers 320 can be circularly transferred in an infinite orbit. and lifters 336,338.

As shown in FIGS. 7 and 9, the first horizontal transfer module 332 is arranged to extend long in the transfer direction of the cover glass CG, and a lower chamber 320 equipped with a magnet is placed on the upper side to form the lower chamber. (320) is transported in one direction. The second horizontal transfer module 334 is arranged in parallel at a certain distance below the first horizontal transfer module 332 and is configured to transfer the lower chamber 320 in the opposite direction to the first horizontal transfer module 332. do. In addition, lifters 336 and 338 are provided at both ends of the first horizontal transfer module 332 and the second horizontal transfer module 334, respectively, and move the first horizontal transfer module 332 and the second horizontal transfer module 334 according to the lifting operation. It serves to transfer the lower chamber 320 between modules 334. The lifters 336 and 338 include a servomotor and a ball screw arranged in a vertical direction, and a bracket that is moved up and down by the ball screw. Through this configuration, as shown in FIG. 9, the lower chamber 320, transported in one direction through the upper first horizontal transfer module 332, is moved downward from the one end side lifter 338 and then moved to the second horizontal After being horizontally transferred in the opposite direction through the transfer module 334, it is again moved upward in the other end side lifter 336 and horizontally transferred again along the first horizontal transfer module 332. Accordingly, the lower chamber 320 is configured to be continuously transported in an infinite orbit.

As mentioned above, the cover glass (CG) that has passed through the cover glass preprocessing unit 200 is picked up by the cover glass loading unit 310 and raised by the lifter 336 located at the front of the lower chamber transfer unit 330. It is seated in the empty lower chamber 320. Additionally, a surface modification unit 340 is provided on the upper side of the front end lifter 336. The surface modification unit 340 is a part that roughens the surface of the cover glass (CG) to improve the bonding force when bonding with the panel (P), which will be described later, and is moved up and down and left and right by a linear motor or servo motor and a ball screw. The surface of the cover glass (CG) is modified by the corona discharge electrode moved to .

The cover glass (CG) processed in the surface modification unit 340 is horizontally transferred in one direction by the first horizontal transfer module 332 while seated in the lower chamber 320. At this time, a second camera unit 350 is provided at the beginning of the first horizontal transfer module 332. The second camera unit 350 is used to obtain an orientation image of the cover glass (CG) seated inside the lower chamber 320 for bonding the cover glass (CG) and the panel (P), and is used in the first horizontal transfer. It is placed on the upper side of the entrance of the module 332, and like the first camera unit 220, it is configured to be movable up and down and left and right by a linear motor, a servomotor and a ball screw, and is raised and lowered and moved horizontally left and right to cover the cover glass (CG). ) Take an image of the orientation. The orientation image of the cover glass (CG) obtained in this way is transmitted to the control unit and stored, and is used when aligning the panel (P) as described later. The second camera unit 350 may be provided as one unit when only one pair of cover glass (CG) and panel (P) is joined at a time in the cementation unit 300, and may be provided with several units when several pairs are bonded simultaneously. It may be possible. For example, as shown in FIG. 1, when two pairs of cover glasses (CG) and a panel (P) are simultaneously bonded in the bonding unit 300, two second camera units 350 transport the cover glasses (CG). They can be arranged adjacently and continuously along a direction.

The upper chamber 360 is for vacuum bonding the cover glass (CG) and the panel (P) as the panel (P) is mounted therein and is joined with the lower chamber (320), and an accommodation space is formed inside and the lower chamber (320) is formed. It is configured in the form of an open enclosure, and is equipped with a vacuum means (not shown) such as a vacuum pump and valve to create a vacuum inside when mated with the lower chamber 320.

FIG. 10 shows the external configuration of the upper chamber 360 according to the present invention, and FIG. 11 shows the configuration of the upper chamber 360 according to a preferred embodiment of the present invention. As shown, the upper chamber 360 is provided at the rear end of the second camera unit 350, and is located on the upper side of the lower chamber transfer unit 330 that transfers the lower chamber 320, specifically the lower chamber 320. ) is placed at a fixed location above the moving path and is configured to be able to go up and down.

First, as shown in FIG. 10, upper chamber lifting modules 361 are provided on both left and right sides of the upper chamber 360. The upper chamber lifting module 361 is composed of a servo motor and a ball screw arranged in the vertical direction to lift and move the upper chamber 360. An upper chamber reversal motor 362 may also be additionally provided on one side of the upper chamber 360. The upper chamber reversal motor 362 inverts the upper chamber 360 up and down to facilitate replacement or repair of structures such as jigs for supporting the panel P inside the upper chamber 360.

Meanwhile, according to a preferred embodiment of the present invention, as shown in FIG. 11, an adhesive chuck 364 for holding and fixing the panel P inside the upper chamber 360, and a cover glass (CG) during bonding ) is additionally provided with a diaphragm 366 for pressurizing. As shown, the adhesive chuck 364 is mounted on the panel mounting bracket 363 disposed at the edge of the upper chamber 360 to temporarily adhesively hold the panel P on the lower side. And a diaphragm 366 is disposed on the upper side of the panel mounting bracket 363 at a predetermined interval. The diaphragm 366 may be in the form of an airbag filled with air, or may be made of an elastic material such as rubber or silicone. The diaphragm 366 is mounted on a diaphragm mounting bracket 365 disposed on the upper side, and the diaphragm mounting frame consists of a lifting motor 368a and a ball screw 368b provided on the outer upper part of the upper chamber 360. It is configured to be able to be raised and lowered by the pressurizing means (368). A guide rod 367 disposed in a vertical direction is coupled between the panel mounting bracket 363 and the upper chamber 360. Through this configuration, the panel P supplied from the panel alignment transfer unit 600, which will be described later, is adhesively held by the adhesive chuck 364, and the upper chamber 360 is lowered by the upper chamber lifting module 361. Thus, it is aligned with the lower chamber 320 in which the cover glass (CG) is seated. In this state, the panel mounting bracket 363 is lowered by the operation of the pressurizing means 368, so that the panel P held by the adhesive chuck 364 is connected to the cover glass CG seated on the cover glass jig 322. They come into contact, and the diaphragm mounting bracket 365 slides downward along the guide rod 367, so that the diaphragm 366 presses the panel (P) to bond the cover glass (CG) and the panel (P).

It is preferable that the upper chamber 360 is provided as many as the number of cover glass (CG) and panel (P) pairs to be bonded. Figure 7 shows an example in which two upper chambers 360 are arranged side by side.

Meanwhile, the panel P bonded to the cover glass CG as described above is supplied through a separate line arranged parallel to the supply and transfer line of the cover glass CG, as shown in FIG. 1. To this end, the automatic bonding device for cover glass (CG) and panel (P) according to the present invention further includes a panel supply unit 400, a panel preprocessing unit 500, and a panel alignment transfer unit 600.

The panel supply unit 400 is a part that continuously transports and supplies a plurality of panels P at regular intervals, and for example, continuous transport equipment such as a conveyor belt or linear motor may be employed. The panels P sequentially supplied from the panel supply unit 400 are sequentially supplied to the panel preprocessing unit 500, which will be described later.

The panel pretreatment unit 500 cleans and aligns the supplied panel (P) and peels off the protective film (PF) attached to the surface. As shown in FIG. 12, the panel preprocessing unit 500 includes a panel loading unit 510, a panel cleaning unit 520, a third camera unit 530, a second barcode reader 540, and a panel transfer unit 550. ), a panel transfer unit 560, a third peeling unit 570, and a panel inversion unit 580.

The panel loading unit 510 is a part that supports and fixes the panel P transferred from the panel supply unit 400 from below and horizontally transfers it to the third camera unit 530 and the third peeling unit 570, which will be described later. As shown in Figure 13, it includes a vacuum stage 512, a second UVW stage 514, and a fifth horizontal transfer member 516.

The vacuum stage 512 adsorbs and supports the panel P from the lower surface through vacuum adsorption, and is preferably made of porous ceramic. The panel (P) is a display panel (P) such as OLED, and a PCB for driving is coupled to the lower side. The panel (P) supplied from the panel supply unit 400 is arranged with the PCB facing upward, Accordingly, the vacuum stage 512 adsorbs and supports the surface of the display panel (P). The vacuum stage 512 is horizontally transferred by the fifth horizontal transfer member 516 disposed at the bottom in the transfer direction (X direction) of the panel P. Here, the fifth horizontal transfer member 516 is preferably a linear motor. Meanwhile, on the lower side of the vacuum stage 512, a device movable in the 2UVW stage 514 is provided.

The panel P that is seated and transported in the panel loading unit 510 undergoes a cleaning process in the panel cleaning unit 520. The panel cleaning unit 520 is also called a tornado cleaning device as it is configured to create a vortex of air using a rotating nozzle so that foreign substances that collide with the air float and are discharged to the top. Since this tornado cleaning device is already known, description of the specific configuration will be omitted.

The third camera unit 530 takes an orientation image of the panel (P) transported by the panel loading unit 510 to align the panel (P) when the protective film (PF) of the panel (P) is peeled off. In part, it has the same structure as the first camera unit 220. The orientation image of the panel P captured by the third camera unit 530 is transmitted to the control unit, and the control unit controls the second UVW stage 514 of the panel loading unit 510 to operate the third peeling unit (described later) Align the panel (P) to correspond to the clamp positions of the third peeling unit (570) and the third peeling unit (570).

Meanwhile, a second barcode reader 540 may be additionally provided on the rear side of the third camera unit 530. The second barcode reader 540 is placed on the upper side of the panel P and moves in the Y direction to read the barcode attached to the cover glass CG and transmit product information to the control unit. Accordingly, the control unit can perform product information management and process management according to the transmitted information.

The panel transfer unit 550 is horizontally transferred by the panel loading unit 510 and transfers the panel P, on which the orientation image is captured by the third camera unit 530, to the third peeling unit 570, which will be described later. As shown in FIG. 12, the panel P mounted on the panel loading unit 510 is adsorbed and held from above on the panel transfer unit 560 provided below the third peeling unit 570, which will be described later. settles on Meanwhile, like the panel loading unit 510, the panel transfer unit 560 absorbs and holds the cover glass (CG) from below and transfers it in the horizontal direction, but unlike the panel loading unit 510, it does not have a separate UVW. .

The third peeling unit 570 is a part that peels the protective film PF attached to the surface of the panel P, and is disposed on the upper side of the panel transfer unit 560 as shown in FIG. 12. The third peeling unit 570 may be configured in the same way as the first peeling unit 240 or may be configured in a different way as needed.

The panel inversion unit 580 is a part that inverts the panel (P) from which the protective film (PF) has been peeled upside down. As shown in FIG. 12, the cover glass (CG) mounted on the panel transfer unit 560 is flipped from above. It is held by suction and flipped up and down by 180 degrees. Since this panel inversion unit 580 has the same or similar configuration as the cover glass inversion unit 250, detailed description will be omitted. Meanwhile, due to this inversion, the PCB of the panel P is arranged to face upward and the display panel P is disposed to face downward.

When the pretreatment process such as cleaning of the panel (P) and peeling of the protective film (PF) is completed as described above, the panel (P) is aligned in the panel alignment transfer unit 600 to correspond to the orientation of the cover glass (CG) to be bonded. and transferred to the upper chamber 360 of the above-described cementation unit 300. As shown in FIG. 12, the panel reversal unit 580 is moved in the horizontal direction to transfer the panel P to the lower side of the panel align transfer unit 600, and the panel align transfer unit 600 moves the panel (P) to the lower side of the panel align transfer unit 600. The PCB part of P) is picked up by adsorption. As shown in FIG. 14, the panel alignment transfer unit 600 includes a plurality of vacuum pads 612 that suction and hold the panel P by vacuum, and a horizontal pad that supports the plurality of vacuum pads 612. A panel ( A DD motor 620 for rotating the gripper 610 in the θ direction to align P), a servomotor 630 for moving the gripper 610 in the X direction, and a gripper 610 It includes a linear motor 640 for moving in the Y direction.

Meanwhile, as shown in FIG. 1, a fourth camera unit 700 is provided on the Y-direction transfer path of the panel alignment transfer unit 600. The fourth camera unit 700 captures an orientation image of the panel P held and transported by the panel alignment transfer unit 600 and transmits it to the control unit. The control unit stores the orientation image of the cover glass (CG) received from the above-described second camera unit 350, and receives the orientation image of the panel P transmitted from the fourth camera unit 700 and stores the pre-stored image. Compare with the orientation image of the cover glass (CG) and move the DD motor 620 and servomotor 630 of the panel alignment transfer unit 600 by the difference in orientation to align the cover glass (CG) and panel (P). are aligned, and the panel (P) is transferred to the upper chamber 360 of the cementation unit 300 by the linear motor 640. The panel P transferred to the upper chamber 360 by the panel alignment transfer unit 600 is vacuum bonded to the cover glass CG seated in the lower chamber 320 as described above. The panel (P) and cover glass (CG) cemented assembly is transported horizontally by the lower chamber transfer unit 330 while seated in the lower chamber 320, and then picked up and withdrawn using a separate extraction device or manually by the operator. do. Then, by pulling out the panel (P) and cover glass (CG) cemented assembly, the empty lower chamber 320 is transferred back to the lower second horizontal transfer module 334 by the lifter 338 and transferred in the reverse direction. It is again transferred to the first horizontal transfer module 332 by the lifter 336 and the same cementation process is repeated. There may be one process line in which preprocessing and alignment transfer of the panel P are performed, or two lines may be arranged parallel to each other as shown in FIG. 1 .

Meanwhile, as shown in FIGS. 1 and 12, it is preferable that a jig replacement unit 800 is additionally provided on one side of the rear end of the lower chamber transfer unit 330. The jig replacement unit 800 is a part that replaces the cover glass jig 322 coupled to the lower chamber 320 when the standard of the cover glass (CG) to be worked on changes, and is composed of a 6-axis articulated robot. desirable. As shown in FIG. 1, a replacement jig magazine 810 and a collection jig magazine 820 are provided on the other side of the jig replacement unit 800, and when the cover glass jig 322 needs to be replaced, it is replaced by the control unit. As the fixing chuck 324 of the lower chamber 320 is released by automatically supplying air, the fixing of the cover glass jig 322 is released, and the jig replacement unit 800 removes the cover glass jig 322 from the lower chamber 320. is picked up and transferred to the collection jig magazine (820). Next, the jig replacement unit 800 picks up the new cover glass jig 322 placed in the replacement jig magazine 810 and supplies it to the lower chamber 320, and the cover glass jig 322 is installed in the lower chamber 320. After being seated, the cover glass jig 322 is again fixed to the lower chamber 320 according to the vacuum operation of the fixing chuck 324, making it possible to bond the cover glass of the changed standard.

Above, specific embodiments of the present invention have been described. However, the spirit and scope of the present invention are not limited to these specific embodiments, and it is known by common knowledge in the technical field to which the present invention pertains that various modifications and variations can be made without changing the gist of the present invention. Anyone who has it will understand. Therefore, the embodiments described above are provided to fully inform those skilled in the art of the present invention of the scope of the invention, and should be understood as illustrative in all respects and not restrictive. The invention is defined only by the scope of the claims.

100: Cover glass supply unit 200: Cover glass pretreatment unit
210: first cover glass transfer unit 211: vacuum pad
212: horizontal arm 214: first lifting member
216: Stage unit 217: 1st UVW stage
218: first horizontal transfer member 220: first camera unit
221: first camera 222: second camera
224 ; Second horizontal transfer member 226: Second lifting member
228: Third lifting member 230: First barcode reader
232: Third horizontal transfer member 240: First peeling unit
244: 4th lifting member 246: 5th lifting member
248: Tension roller 250: Cover glass inversion unit
251: horizontal arm 252: vacuum pad
253: 6th lifting member 254: Support bracket
255: rotation bracket 256: rotation axis
257: reversal motor 258: reducer
260: second peeling unit 270: second cover glass transfer unit
272: Fourth horizontal transfer member 280: Cover glass cleaning unit
300: Joint part 310: Cover glass loading unit
320: Lower chamber 322: Cover glass jig
324: Fixed chuck 330: Lower chamber transfer unit
332: first horizontal transfer module 334: second horizontal transfer module
336, 338: Lifter 340: Surface modification unit
350: second camera unit 360: upper chamber
361: Upper chamber lifting module 362: Upper chamber reversal motor
363: Panel mounting bracket 364: Adhesive chuck
365: Diaphragm mounting bracket 366: Diaphragm
367: guide rod 368: pressurizing means
368a: lifting motor 368b: ball screw
400: Panel supply unit 500: Panel pre-processing unit
510: Panel loading unit 512: Vacuum stage
514: 2nd UVW stage 516: 5th horizontal transfer member
520: Panel cleaning unit 530: Third camera unit
540: Second barcode reader 550: Panel transfer unit
560: Panel transfer unit 570: Third peeling unit
580: Panel reversal unit 600: Panel alignment transfer unit
610: gripper 612: vacuum pad
614: Horizontal arm 616: 8th lifting member
620: DD motor 630: Servo motor
640: Linear motor 700: 4th camera unit
800: Jig replacement unit 810: Replacement jig magazine
820: Collection Jig Magazine

Claims (16)

a lower chamber 320 in which the cover glass (CG) is seated;
a lower chamber transfer unit 330 for continuously horizontally moving the plurality of lower chambers 320 at regular intervals;
It is spaced apart on the upper side of the lower chamber transfer unit 330 and is operated to lift and lower, and the panel P is accommodated therein, and the panel P is placed on the cover glass CG mounted on the continuously moving lower chamber 320. Includes an upper chamber 360 for sequential vacuum cementation,
The lower chamber transfer unit 330,
a first horizontal transfer module 332 for horizontally transferring the lower chamber 320 in one direction;
a second horizontal transfer module 334 disposed below the first horizontal transfer module 332 and configured to transfer the lower chamber 320 in a direction opposite to the first horizontal transfer module 332;
It is provided at both ends of the first horizontal transfer module 332 and the second horizontal transfer module 334, respectively, and moves the lower chamber 320 between the first horizontal transfer module 332 and the second horizontal transfer module 334. An automatic bonding device for cover glass and panels, characterized in that it includes lifters (336,338) for lifting the cover glass and the panel. According to claim 1,
The lower chamber 320 is equipped with a cover glass jig 322 formed to correspond to the curvature of the cover glass CG to adsorb and support the cover glass CG from the bottom. Automatic cementation device. According to claim 2,
An automatic bonding device for a cover glass and a panel, characterized in that the lower chamber (320) is provided with a fixing chuck (324) that holds and fixes the cover glass jig (322) by pneumatic pressure from the lower part. delete According to claim 1,
An automatic bonding device for cover glass and panels, wherein the first horizontal transfer module 332 and the second horizontal transfer module 334 are selected from LMMT, linear motor, and conveyor belt. According to claim 1,
a cover glass supply unit 100 that sequentially supplies the cover glass (CG);
a cover glass preprocessing unit 200 that aligns the cover glass (CG) and peels off the protective film (PF);
a cover glass loading unit 310 that transfers and supplies the cover glass (CG) that has passed through the cover glass pretreatment unit 200 to the lower chamber 320;
a panel supply unit 400 that sequentially supplies panels (P) to be bonded to the cover glass (CG);
a panel pre-processing unit 500 that aligns the panel P and peels the protective film PF;
Automatic bonding of the cover glass and the panel, further comprising a panel alignment transfer unit 600 that matches the image orientation of the cover glass (CG) and transports the panel (P) to the upper chamber 360. Device. According to claim 6,
The cover glass preprocessing unit 200,
A first camera unit 220 that captures an orientation image of the cover glass (CG);
A first cover glass transfer unit 210 that grasps and transfers the cover glass (CG) in the horizontal direction and aligns the cover glass (CG) based on the orientation image captured by the first camera unit 220; ;
a first peeling unit 240 that peels off the outer protective film (PF) of the cover glass (CG);
a cover glass inversion unit 250 that rotates the cover glass CG by 180 degrees;
a second peeling unit 260 that peels off the inner protective film (PF) of the inverted cover glass (CG);
An automatic bonding device for a cover glass and a panel, comprising a second cover glass transfer unit (270) that grips and transfers the cover glass (CG) from which the protective film (PF) has been peeled. According to claim 6,
It further includes a second camera unit 350 for capturing an orientation image of the cover glass (CG) transferred by the cover glass loading unit 310, and the panel alignment transfer unit 600 is configured to capture an image of the orientation of the cover glass (CG) transferred by the cover glass loading unit 310. An automatic bonding device for cover glass and panels, characterized in that the orientation matches the image orientation of the cover glass (CG) captured by the second camera unit (350) and is transported and supplied to the upper chamber (360). According to claim 6,
The cover glass loading unit 310 is an automatic bonding device for cover glass and panels, characterized in that it is a 6-axis articulated robot. According to claim 8,
The panel preprocessing unit 500,
a third camera unit 530 that captures an orientation image of the panel P;
The panel (P) is supported and fixed from below, the panel (P) is aligned based on the orientation image of the panel (P) captured by the third camera unit 530, and the panel (P) is aligned in the horizontal direction. A panel loading unit 510 for transferring;
a panel transfer unit 550 that suction-holds and transfers the panel P mounted on the panel loading unit 510 from above;
a panel transfer unit 560 that suction-holds and transfers the panel P transferred by the panel transfer unit 550 from below;
a third peeling unit 570 that peels the protective film (PF) attached to the panel (P);
An automatic bonding device for a cover glass and a panel, comprising a panel inversion unit (580) that flips the panel (P) up and down by 180 degrees. According to claim 10,
The panel alignment transfer unit 600,
A gripper 610 for adsorbing and holding the upper part of the panel P inverted by the panel inversion unit 580, and a gripper for aligning the panel P picked up and gripped by the gripper 610. A DD motor 620 to rotate the 610 in the θ direction, a servomotor 630 to move the gripper 610 in the X direction, and a linear motor to move the gripper 610 in the Y direction. (640) Automatic bonding device for cover glass and panel, comprising: According to claim 11,
A fourth camera unit 700 is provided in the transfer path of the panel align transfer unit 600 to capture an orientation image of the panel P held and transferred by the panel align transfer unit 600, The panel alignment transfer unit 600 is based on the orientation image of the cover glass (CG) captured from the second camera unit 350 and the orientation image of the panel P captured from the fourth camera unit 700. An automatic bonding device for a cover glass and a panel, characterized in that the panel (P) is aligned to match the orientation of the cover glass (CG) and then transferred to the upper chamber (360). According to claim 1,
an upper chamber elevating module 361 that elevates the upper chamber 360 up and down;
an adhesive chuck 364 for holding and fixing the panel P inside the upper chamber 360;
a diaphragm 366 for pressurizing the cover glass (CG);
An automatic bonding device for a cover glass and a panel, comprising a pressing means (368) for pressing the diaphragm (366) to the cover glass (CG). According to claim 2,
An automatic bonding device for a cover glass and a panel, further comprising a jig replacement unit (800) for replacing the cover glass jig (322) inside the lower chamber (320). According to claim 14,
The jig replacement unit 800 is an automatic bonding device for cover glass and panels, characterized in that it is a 6-axis articulated robot. Continuously supplying cover glass (CG) at regular intervals;
A pretreatment step of peeling off the protective film (PF) attached to the surface of the supplied cover glass (CG) and cleaning the cover glass (CG);
Taking an orientation image of the cover glass (CG);
Continuously supplying panels (P) at regular intervals;
A pretreatment step of cleaning the panel (P) and peeling off the protective film (PF) attached to the surface;
taking an orientation image of the panel (P);
Aligning and transporting the panel (P) to match the orientation of the cover glass (CG) based on the captured image of the orientation of the cover glass (CG) and the panel (P);
a lower chamber 320 in which the cover glass (CG) is seated;
While moving the plurality of lower chambers 320 horizontally and continuously at regular intervals, the cover glass CG is sequentially seated inside the lower chambers 320, and is fixed at a fixed position above the moving path of the lower chamber 320. As the upper chamber 360, which is placed in and houses the panel P therein, is raised and lowered, the panel P is sequentially vacuumed on the cover glass CG seated in the continuously moving lower chamber 320. cementing steps;
An automatic cementation method of a cover glass and a panel including the step of withdrawing and discharging the cemented cover glass (CG) and panel (P) combination from the lower chamber (320).

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