KR20030091873A - Apparatus for removing a protect film from lcm board and method thereof - Google Patents

Abstract

PURPOSE: A method for peeling off a protective film of an LCM(LCD Module) board and a device therefor are provided to reduce loss of a protective film, remove the inconvenience of periodically changing a recovery roller, and reduce the time required for peeling off the protective film. CONSTITUTION: A pair of slides(20a,20b) are installed at a guide(22) to be movable following feed screws(215) according to rotation of a motor(21). A plate(211) including a guide roller(213) guiding an adhesive tape(3) and a compressive roller(212) compressing the adhesive tape to a protective film is installed on each slide. The slide includes a lifting element lifting the plate. Two guide rollers(24) are installed in the center of the slides to guide the protective film into recovery rollers(23). The recovery rollers are driven by the motor for drawing the adhesive tape and the protective film. A shredder(26) is installed under the recovery rollers for shredding the recovered protective film and the adhesive tape.

Description

Method of peeling protective film of LC board and its device {APPARATUS FOR REMOVING A PROTECT FILM FROM LCM BOARD AND METHOD THEREOF}

The present invention is a process before the assembly of the back light in the protective film attached to the upper and lower surfaces to protect the polarizer of the board of the LCD module (LCM), a method for peeling the protective film of the lower surface and implements the same It relates to an automated equipment for.

In general, a polarizing plate (also called 'POL') is attached to both sides of the board of the LCD module LCM. In order to protect the polarizing plate POL, a POL protective film is coated thereon. However, since the assembly of the LCD module (LCM) after removing the protective film immediately before assembling the board (Back Light), the process for removing the protective film from the board in the assembly process is required. do.

As such, the conventional method for removing the protective film from the board of the LCD module LCM has been made as shown in FIGS. 1 and 2.

That is, as shown in Figure 1, the board (1) is moved along the production line by the adsorption means, etc. assembled in the backlight (Back Light), just before the process proceeds after attaching the adhesive tape to the protective film The method of peeling a protective film by pulling this tape is applied. FIG. 2A shows a state in which the adhesive tape 3 wound on the roll 4 is set as a preparatory step for the peeling operation by winding the collecting roller 6 via the pressure roller 5, and FIG. The adhesive tape is bonded to the bottom surface of the board by the pressure roller 5 while the stand is transported, and FIG. 2C shows the adhesive tape 3 while the transport stand is returned (in this case, the collection roller 6 is rotated). ), The protective film adhered to the adhesive tape is peeled off, and the peeled protective film and the adhesive tape are wound on the collecting roller 6 to complete the peeling process.

However, in the prior art configuration and work process made in this way, the number of stops of equipment due to the frequent replacement of the collection roller 6, the problem of enlargement of the equipment due to the large forward and backward zones of the carriage, the advancement of the carriage and Due to the increase in the reversing distance, there are many problems such as decreased work efficiency and reduced productivity due to the long time required for one cycle, which leads to the demand for the development of a new type of peeling device.

The present invention has been devised to provide a method for peeling the protective film of the board by a new method and a peeling apparatus capable of implementing the method, by complementing the conventional problems as described above, and employs two transfer tables that are moved to face each other. It aims to increase productivity by minimizing the working time and maximizing the work efficiency by minimizing the transport distance of the transport table to the shortest.

In addition, the peeling apparatus according to the present invention is to minimize the static electricity generated during the peeling process of the protective film, so that the peeled film can be collected smoothly to improve the workability.

In order to achieve the above object, the protective film peeling method according to the present invention, in the method of peeling the protective film coated on the bottom surface of the LCD module (LCM), about from both ends of the workpiece to the peeling The adhesive tape is attached to the protective film by elevating a pair of feed trays having an adhesive tape roll and a pressure roller at about 2/3 positions, and then moving the feed trays to both ends to protect the adhesive tape. Adhering to; A first peeling step of stopping the rotation of the adhesive tape roll in a state in which the bonding is completed, and peeling the protective film by the tension of the adhesive tape while moving the feed table to a position about 2/3 from both ends to the center of the workpiece; The protective film coated on the central part of the workpiece is gradually drawn by pulling the adhesive tape in the state of being peeled off by the first peeling step and the protective film loosened in the state bonded to the adhesive tape by the rotational force of the recovery roller. It is made of a secondary peeling step to be peeled off, characterized in that the process to ensure that the protective film and the adhesive tape peeled off by the second peeling step is supplied to the grinder located in the center of the both transport.

In addition, in order to implement the protective film peeling method of the present invention described above, the present invention is provided with an adhesive tape roll (4), a pressure roller (5) for pressing the adhesive tape to adhere to the bottom surface of the board (1), etc. Consists of a pair of transfer tables 20a and 20b, guides 22 and transfer screws (not shown) for transferring the transfer tables 20a and 20b in opposite directions to each other. ) The protective film is peeled from the edge of the board 1 by pulling the adhesive tape by the rotation of the recovery roller located in the center part of the transfer board while adhering at a predetermined position on the bottom surface. Characterized in that.

1 is a conceptual diagram of a conventional protective film peeling device

2 is an explanatory view of a peeling process by a conventional protective film peeling apparatus

3 is a schematic perspective view of a peeling apparatus according to the present invention;

4 to 10 show the operation of the peeling apparatus according to the present invention,

4 is a cross-sectional view showing an operation standby state

5 is an explanatory diagram showing an initial step of adhering the adhesive tape to the protective film;

6 is an explanatory diagram showing a state in which the adhesive tape is bonded;

7 is an explanatory diagram of a state in which the plate descends after completion of the adhesive tape adhesion

8 is an explanatory diagram of a state in which peeling is started while the feeder is moved inward;

9 is an explanatory view of a state in which primary peeling by transporting of a transfer table is completed;

10 is an explanatory diagram of a process in which secondary peeling is completed by rotation of a recovery roller;

<Description of the symbols for the main parts of the drawings>

1: board 3: adhesive tape

4: adhesive tape roll 5: pressure roller

6: collection roller 20a, 20b: feeder

21: Motor 22: Guide

23: recovery roller 24: guide roller

26: grinder 211: plate

212: pressure roller 213: guide roller

214: Guide 215: Transfer screw

31: ionizer nozzle

Hereinafter, described in detail by the accompanying drawings of the present invention.

Figure 3 shows a perspective view of a protective film peeling apparatus according to the present invention.

As shown in FIG. 3, the present invention provides a transfer guide 22 installed longitudinally on a base 12 provided on four supports 11 and a rotation screw (not shown) on the guide. It consists of a pair of conveyance stand 20a, 20b which advances back and forth by this. The pair of transfer tables 20a and 20b operate to approach or move away from each other in accordance with the rotation of the rotating feed screw.

The plate 211 is installed on the transfer table so that the plate 211 can be moved up and down along the guide 214 by the rotation of the transfer screw 215, the plate 211 is rolled with an adhesive tape wound, and the adhesive A guide roller 213 for guiding the tape 3 and a pressure roller 212 for pressing the adhesive tape to the protective film on the bottom surface of the board 1 to be in close contact with each other are provided.

In addition, two guide rollers 24 are provided at the center of the base where the two transfer tables 20a and 20b are positioned to guide the peeled film into the recovery roller 23. The adhesive tape (including the peeled protective film) which is changed in direction by the 24) is supplied to the grinder 26 provided on the bottom surface of the base 12 by the rotation of the recovery roller 23. The long inlet 25 of the direction orthogonal to the guide 22 is formed.

In the configuration of the present invention, in order to reduce the static electricity generated in the adhesive tape and the protective film is peeled off the rear portion of the guide roller 213 is provided with an ionizer nozzle (31) is generated in the protective film is peeled off It is configured to spray evenly on the peeled film to prevent static electricity.

In addition, in the configuration of the present invention, the back of the guide roller 213, the cylinder 216 and the piston 217 and the stopper 218 provided at the end of the piston is provided with an adhesive tape roll while peeling off the protective film ( 4) is additionally added as a configuration to prevent it from being solved.

In the configuration of the present invention, as a configuration for vertically raising and lowering the plate 211 of the transfer table, the transfer screw 215, the guide 214, and a motor (not shown) have been described as an example. For example, it can be replaced by the configuration of the pneumatic cylinder and the piston, and to provide a limit switch or position sensor for the position control of the vertical lift is configured to accurately control the various lifting means described above From the detailed description of the present invention will be within the scope of the present invention because it corresponds to a matter that can be modified by anyone skilled in the art.

Referring to the operation relationship and effects related to the peeling apparatus of the present invention described above are as follows.

First, Figure 4 shows the initial state of the peeling apparatus according to the present invention, showing the state that the workpiece, that is, the board 1 is stopped at the position to be transported and processed. As can be seen in Figure 4, the board 1 is positioned so that its diagonal line is the same position as the guide 22 direction, because the protection from the corners rather than peeling off the protective film from the side of the board (1) It is for peeling a film. This will be fully understood in the subsequent description of the process.

The positions of the two transfer tables 20a and 20b in the initial state are located at a distance of about one third from both edges of the board 1 inward.

When the preparation for the start of the peeling process is completed in the initial state, as shown in Figure 5, the plate 211 of the two carriages (20a, 20b) are respectively raised by the rotation of the motor to the pressure roller 212 The guided adhesive tape 3 is bonded to the bottom of the board 1.

After the adhesive tape 3 is brought into contact with the bottom surface of the board 1, as shown in FIG. 6, the two carriages 20a and 20b retreat to the outer edges of the board 1. In this process, as the roll 4 of the adhesive tape is released, the adhesive tape 3 is pressed to the edge end of the bottom of the board by the pressure roller 212 and then adhered to the protective film.

7 is a process immediately before the peeling of the protective film, and shows the process of each plate 211 provided in the two transport (20a, 20b) is lowered, Figure 8 is the two transport (20a) 20b shows the process of starting to peel off the protective film as it starts to be transferred inward. As shown in FIG. 8, when the conveyers 20a and 20b are moved inward, the stopper 218 provided at the rear of the guide roller 213 operates to press the guide roller 213 to press the adhesive. The tape (3) should not be released from the roll (4). Of course, it is also possible to modify the embodiment according to the invention by adding a component that prevents rotation of the shaft inside the roll 4.

As the transfer trays 20a and 20b are continuously moved inward, the protective film is peeled from the board 1, and since the recovery roller 23 provided at the center of the base is installed, the two transfer trays can be moved. There is a limit position, and thus there is a limit in the protective film peeling position due to the movement of the transfer tables 20a and 20b. At this time, as shown in Figure 9, while the recovery roller is rotated by the rotation of the motor 23a, the adhesive tape pulled off by the movement of the transfer table is pulled out and introduced into the grinder inlet 25, the base 12 The grinder provided at the bottom of the grinder is operated to grind the waste adhesive tape and waste protective film.

By the above process, the recovery roller 23 pulls out the stretched adhesive tape to the inlet, and as soon as shown in Figure 10, to pull the protective film adhered to the adhesive tape to the central portion of the board (1) Will be peeled off to the protective film located.

When all of the above processes are completed, the transfer table is moved to the initial position, as shown in FIG. 4, and when the next work piece is loaded and setting is completed, the process described above is resumed.

As mentioned above, the detailed description of the present invention has been described by taking specific embodiments of the present invention as an example, but the present invention is not limited thereto, and the technology to which the present invention belongs does not depart from the concept of the present invention. Modifications or changes in various forms by those of ordinary skill in the art are of course included in the concept of the present invention.

As described above, the peeling apparatus according to the present invention is not only configured to operate the two transfer trays at the same time, but also to the inside of the transfer tray after the adhesive tape is adhered to only a portion (edge edge) without adhering the adhesive tape over the entire bottom surface of the board. After the first peeling is carried out while transferring to the film, the remaining film is peeled off by the rotational force of the recovery roller located in the center of the base, thereby reducing the loss of the adhesive tape and periodically replacing the collection rollers. In addition to eliminating interruptions, it is a useful invention that can maximize work efficiency and productivity by shortening the time required for peeling.

Claims (5)

In order to peel off the protective film coated on both sides of the board (1) of the LCD module (LCM), the transfer table having an adhesive tape roll (4), the pressure roller (5), and moving the transfer table In the protective film peeling device which comprises a moving means for peeling the protective film by adhering the adhesive tape (3) and winding the adhesive tape with the collection roller (6), The transfer table having an adhesive tape roll is installed on the guide 22 so as to be movable along the transfer screw in accordance with the rotation of the motor 21, and a pair of transfer tables 20a and 20b facing each other. ); A plate 211 having a guide roller 213 for guiding the adhesive tape 3 and a pressure roller 212 for pressing the adhesive tape to the protective film and adhering the adhesive tape 3 is installed on an upper portion of the transfer tray. Lifting means for raising and lowering is provided inside the transfer table, Two guide rollers 24 are provided at the centers of the two feeders to guide the peeled film into the recovery roller 23. A recovery roller 23 driven by a motor to pull the adhesive tape and the protective film to be peeled off, and a crusher 26 for crushing the recovered film and the adhesive tape under the recovery roller, characterized in that the Protective film peeling device. 2. The protective film peeling apparatus according to claim 1, wherein the elevating means comprises a vertical transfer screw (215) and a motor for driving the vertical transfer screw, and a vertical guide (214) for guiding the plate. The method of claim 1, wherein the plate 126 comprises a cylinder 216, a piston 217 and a stopper 218 provided at an end thereof to press the adhesive tape in contact with the guide roller 213 while peeling off the protective film. Protective film peeling device, characterized in that not to move. The protective film peeling apparatus according to claim 1, wherein an ionizer nozzle (31) is installed on one side of the plate provided with the guide roller (213) and the pressure roller (212). In the method of peeling the protective film coated on the bottom surface of the LCD module (LCM), After attaching the adhesive tape to the protective film by elevating a pair of transfer tables including an adhesive tape roll and a pressure roller at a position about 2/3 from both ends of the workpiece to be peeled off, Attaching the adhesive tape to the protective film by moving the stands to both ends; A first peeling step of stopping the rotation of the adhesive tape roll in a state in which the bonding is completed, and peeling the protective film by the tension of the adhesive tape while moving the feed table to a position about 2/3 from both ends to the center of the workpiece; The protective film coated on the central part of the workpiece is gradually drawn by pulling the adhesive tape in the state of being peeled off by the first peeling step and the protective film loosened in the state bonded to the adhesive tape by the rotational force of the recovery roller. It is made of a secondary peeling step to peel off, Protective film peeling method, characterized in that by the secondary peeling step, the peeled protective film and the adhesive tape to be supplied to the grinder located in the center of both transport.