KR100847697B1 - Protective film peeling head unit and polarizing plate attachment device provided with the same - Google Patents

Abstract

A protective film peeling head unit and a polarizing plate attaching device having the same are disclosed. The polarizing plate attachment device of the present invention comprises: a polarizing plate supply unit for supplying a polarizing plate having a protective film on at least one surface thereof to a predetermined working position where the protective film is peeled off; And a protective film peeling head unit coupled to any one side of the polarizing plate supply unit so as to be movable to the working position together with the polarizing plate supply unit to peel the protective film from the polarizing plate at the working position. According to the present invention, the structure of the device can be simplified by reducing the footprint of the overall device by coupling the part peeling off the protective film to the polarizing plate supply unit and moving together, as well as the tack time. It can be remarkably reduced than before.

Polarizer, protective film, polarizer attachment device, peeling head unit, peeling device

Description

Protective Film Attaching Unit and Apparatus For Attaching Polarizer To LCD Panel Having the Same}

1 is a block diagram of a polarizer attachment apparatus according to a conventional embodiment.

2 is a block diagram of a polarizer attachment apparatus according to an embodiment of the present invention.

3 is a schematic partially enlarged perspective view of the polarizer attaching device of FIG. 2.

4 is an exploded perspective view of area A of FIG. 3.

FIG. 5 is a view illustrating a state in which the adhesive tape is removed while FIG. 4 is shown in another direction.

6 is a perspective view of a protective film peeling head unit to which an adhesive tape is bonded.

7 and 8 are diagrams schematically showing the tilting process of the protective film peeling head unit, respectively.

9 is a view showing the clamp device of the protective film peeling head unit.

10 is a perspective view illustrating a state in which the protective film is chucked.

11 to 13 are diagrams showing the step of peeling the protective film, respectively.

         * Explanation of symbols for the main parts of the drawings

P: Polarizer F: Protective Film

T: Adhesive Tape 1: Polarizer Attaching Device

10 protective film peeling head unit 11 unit body

12: supply roller 13: recovery roller

14 contact roller 14a buffer part

15: guide bar 16: spacer

18: cutting slot 20: polarizing plate supply unit

21: head unit support portion 25: bar insertion portion

28: tightening boss 30: tilting part

35 clamp 40 chucking part

50: working line 70: polarizing plate attachment portion

75: polarizing plate adsorption die 80: protective film recovery unit

The present invention relates to a protective film peeling head unit and a polarizing plate attaching apparatus having the same, and more particularly, the structure of the apparatus can be simplified and the footprint can be reduced. Time) also relates to a protective film peeling head unit and a polarizing plate attachment device having the same can be significantly reduced than conventional.

Recently, the flat panel display (FPD) has begun to emerge as the electronic display industry is rapidly developing among the semiconductor industry.

A flat panel display (FPD) is an image display device that is thinner and lighter than a cathode ray tube (CRT), which is mainly used as a display for a TV or a computer monitor, and includes a liquid crystal display (LCD). ) And a plasma display panel (PDP).

One of such flat display (FPD) thin film transistor (TFT-LCD) liquid crystal displays (TFT-LCDs) injects a liquid crystal, which is an intermediate material between a solid and a liquid, between two thin upper and lower glass substrates. It is a device using a kind of optical switch phenomenon that displays the number or the image by generating the contrast by changing the arrangement of the liquid crystal molecules by the electrode voltage difference of the substrate.

Liquid crystal display (LCD) is replacing the existing cathode ray tube (CRT) at a high speed due to the excellent performance of thin, light weight, low power consumption. Therefore, it is widely used in electronic products such as electronic clocks, electronic calculators, TVs, notebook PCs, speed displays and driving systems of automobiles and aircrafts.

Such liquid crystal display (LCD) is largely released as a product through a TFT process, a cell process, and a module process.

The TFT process is very similar to the semiconductor manufacturing process, in which thin film transistors are arranged on a glass substrate by repeating deposition, photolithography, and etching.

The Cell process forms an alignment layer on the TFT bottom plate manufactured by the TFT process and the top plate of the color filter so that the liquid crystals can be aligned well. The top and bottom plates are formed by corals and seal printing. It is a process of bonding.

The module process attaches a polarizing plate to a completed LCD panel, mounts an integrated circuit (Drive-IC), assembles it with a PCB (Printed Circuit Board), and then back-lights a unit and a fixture. Point to a series of steps to assemble.

On the other hand, the polarizing plate used in the module process, and is attached to both sides of the LCD panel serves to selectively transmit only the light vibrating strongly in a specific direction of the light transmitted through the liquid crystal.

Such a polarizing plate is produced by attaching a protective film on both sides of the polarizing plate from the manufacturing plant. Accordingly, in the LCD panel assembly plant, the worker has to manually remove the protective film of the polarizing plate by hand or attach the polarizing plate to the LCD panel or by using the adhesive tape. However, since such manual work reduces productivity, a polarizing plate attaching device capable of peeling the protective film and attaching the peeled polarizing plate to the LCD panel has been disclosed in consideration of such a problem.

1 is a block diagram of a polarizer attachment apparatus according to a conventional embodiment.

As shown in the drawing, the conventional polarizing plate attaching device includes a polarizing plate attaching unit 170, a polarizing plate supplying unit 120, and a protective film peeling unit 110 that are largely independently disposed.

The polarizing plate attaching unit 170 is a device that performs a series of operations to directly attach the polarizing plate peeled off the protective film to the LCD panel, and in the polarizing plate attaching unit 170, the protective film attached to the polarizing plate (not shown) peels off the protective film. It is peeled off by the part 110.

The polarizing plate supply unit 120 is a device for supplying a polarizing plate on which the protective film is not peeled to the polarizing plate attaching unit 170. The polarizing plate supplying unit 120 is provided as a device independent of the polarizing plate attaching unit 170 and has a predetermined distance (L) from the polarizing plate attaching unit 170. ) Are spaced apart.

The protective film peeling unit 110 moves to the polarizing plate attaching unit 170 to peel off the protective film attached to the polarizing plate supplied to the polarizing plate attaching unit 170, which is also similar to the polarizing plate supplying unit 120. It is provided as a separate device is installed spaced apart a predetermined distance (L) to be accessible and spaced apart with respect to the polarizing plate attachment portion 170.

Although not shown in detail, the protective film peeling unit 110 has a configuration in which the protective film attached to the polarizing plate is peeled off while moving in one direction while the adhesive tape is attached to the protective film.

Accordingly, the protective film peeling unit 110 includes a supply roller for supplying the adhesive tape, a recovery roller for recovering the waste tape from which the adhesive force is exhausted after the peeling process for the protective film is completed, and peripheral accessories supporting them. . They each have a structure that is separately disassembled to the main body to form the appearance of the protective film peeling unit 110, whereby if you want to replace the adhesive tape must go through a complicated disassembly assembly process.

Referring to the operation of the conventional polarizing plate attachment device having such a configuration briefly as follows.

First, as shown in FIG. 1, the polarizing plate supply unit 120 supplies a polarizing plate having a protective film to the polarizing plate attachment unit 170 by moving a distance by L (①). Then it returns to the original position again (②). Although not shown, the supplied polarizing plate is fixed while being mounted on the polarizing plate adsorption die of the polarizing plate attachment portion 170.

Next, the protective film peeling unit 110 provided independently of the polarizing plate supply unit 120 at a different position moves the distance by L to approach the polarizing plate attachment unit 170 (③). Then, the adhesive tape provided on the protective film peeling unit 110 is lowered to be adhered to the protective film, and when the adhesive tape is adhered to the protective film, the adhesive tape returns to the direction ④. At this time, since the polarizing plate is fixed by a polarizing plate adsorption die (not shown) provided in the polarizing plate attachment unit 170, when the protective film peeling unit 110 moves in the ④ direction, the protective film attached to the polarizing plate is peeled off the protective film. It can be peeled off along the part 110.

After the protective film attached to the polarizing plate is peeled off within the working position where the polarizing plate attaching unit 170 is located, the polarizing plate attaching unit 170 moves the LCD panel to attach the polarizing plate to one surface of the LCD panel to proceed with the polarizing plate attaching process. do. This series of processes is repeatedly performed the same for each LCD panel.

However, in the conventional polarizing plate attachment device, since the protective film peeling unit 110 is provided as a separate device separate from the polarizing plate supply unit 120, the overall structure of the device is complicated and the footprint (foot print) is increased. In addition, since the protective film peeling unit 110 and the polarizing plate supply unit 120 each have a structure that independently moves toward the polarizing plate attaching unit 170, their moving distances are longer than necessary, so that the tack time is increased. There is a problem that becomes longer.

In addition, in the conventional polarizing plate attaching device, since the supply and recovery rollers and the like provided in the protective film peeling unit 110 has a structure to be assembled separately at the corresponding position, if the adhesive tape is to be replaced, a complicated disassembly process must be performed. Therefore, not only does the work man-hours increase, but also the maintenance time becomes long, and in particular, during this maintenance time, a series of processes for attaching the polarizer are forced to stop, which leads to a significant decrease in productivity due to a decrease in the operation rate of the device. There is this.

In addition, in the conventional polarizing plate attaching device, the adhesive tape provided on the protective film peeling unit 110 may not be completely in surface contact with the protective film due to an error such as machining, so that the protective film may not be peeled smoothly from the polarizing plate. As a result, there is a problem in that the yield of the protective film peeled off.

An object of the present invention, by combining the portion peeling off the protective film to be coupled to the polarizing plate supply to move together, the overall structure of the device can be simplified to reduce the foot print (Tack Time) of course It is also to provide a protective film peeling head unit and a polarizing plate attachment device having the same can be significantly reduced than the conventional.

Another object of the present invention, the adhesive tape can be easily replaced to reduce the labor and maintenance time due to the replacement of the adhesive tape, thereby increasing the operating rate of the device to improve the productivity than the conventional protection It is to provide a film peeling head unit and a polarizing plate attachment device having the same.

Still another object of the present invention is to provide a protective film peeling head unit that can improve the yield of the protective film by reducing the frequency of the adhesive film provided on the protective film peeling portion is not adhered to the protective film can not be peeled off the protective film and its It is to provide a polarizing plate attachment device provided.

According to the present invention, the polarizing plate supply unit for supplying a polarizing plate with a protective film on at least one surface to a predetermined working position where the protective film is peeled off; And a protective film peeling head unit coupled to any one side of the polarizing plate supply part to move to the working position together with the polarizing plate supply part to peel the protective film from the polarizing plate at the working position. Is achieved by.

Here, the protective film peeling head unit supplies and recovers the adhesive tape adhered to the protective film for peeling the protective film, the polarizing plate supply unit and the polarizing plate adsorption die is coupled to the protective film peeling head unit, It may be arranged on both sides with the working position interposed on a predetermined work line so as to be accessible and spaced apart from each other toward the working position.

A head unit support part is provided in an upper front region of the polarizing plate supply part, and the protective film peeling head unit may be detachably coupled to each of the head unit support parts.

The protective film peeling head unit may include: a unit body having a first plate and a second plate coupled to each other at predetermined intervals; A supply roller coupled to any one surface of the first plate and the second plate to supply the adhesive tape; A recovery roller provided at a position spaced apart from the supply roller to recover the used adhesive tape; And a contact roller provided at end portions of the first plate and the second plate to form a path from the supply roller to the recovery roller, and to contact the adhesive tape to the protective film.

Here, it may further include a coupling member coupled to the unit body to integrally couple the protective film peeling head unit to the head unit support.

At this time, the coupling member, the shaft portion coupled to the unit body; A screw part formed on an outer surface of the shaft part and screwed to a fastening boss provided in the head unit support part; And a handle operating part formed at one end of the shaft part so as to be fitted to the fastening boss and disposed outside the unit body.

Here, the shaft portion of the coupling member may be fitted to the cutting slot cut in a predetermined length inward from the outer surface of any one of the first plate and the second plate.

In addition, the protective film peeling head unit and the head unit support portion is provided, when the protective film peeling head unit is coupled to the head unit support portion, it is preferable to further include a coupling position guide for guiding the coupling position.

The coupling position guide may include: a guide bar protruding toward the other from any one of the protective film peeling head unit and the head unit support; And a bar insertion part formed at another one of the protective film peeling head unit and the head unit support part to insert the guide bar.

At this time, the guide bar may be further formed with a stopper for limiting the insertion depth of the guide bar to the bar insertion portion.

When the contact roller is pressed toward the protective film, the peeling efficiency is improved by including a tilting part for tilting the protective film peeling head unit at an angle with respect to the polarizing plate supply so that the adhesive tape can be substantially completely adhered to the protective film. .

Here, the tilting unit, the first bracket coupled to the polarizing plate supply unit; A second bracket coupled to the protective film peeling head unit; A connection part connecting the first bracket and the second bracket; A hinge pin hinged to the first bracket through the connection portion; And an elastic member having both ends coupled to the first bracket and the third bracket coupled to the protective film peeling head unit to return the tilted protective film peeling head unit to its original position.

At this time, both ends of the contact roller in contact with the first plate and the second plate is further provided with a buffer for doubling the buffering force for the contact roller pressed by the protective film may increase the tilting effect.

The buffer part may be an O-ring made of an elastic material.

Is coupled to any one side of the unit body, may further include a clamp for preventing the separation of the protective film from the adhesive tape when the protective film is peeled off.

The chucking unit may be further provided on the work line to chuck a region of the peeled protective film so that the peeled protective film may be separated from the adhesive tape of the protective film peeling head unit.

The chucking unit is preferably provided in a pair to be spaced apart from each other on the work line along the transverse direction in the direction in which the protective film is peeled off.

The chucking unit, the chucking body; And a pair of chucking bars rotatably coupled in at least one direction on both sides of the chucking body to chuck the protective film.

Here, the pair of chucking bar has a Hangul "b" shape of a portion bent, it can be chucking the protective film while rotating along the plate surface direction of the polarizing plate in the chucking body.

At this time, the chucking bar located on the outer side of the work line of the pair of chucking bar is easier to chuck the length of the chucking bar is formed relatively longer than the other chucking bar.

The above object is, in accordance with the present invention, a unit body; A supply roller coupled to the unit body to supply an adhesive tape; A recovery roller provided at a position spaced apart from the supply roller to recover the used adhesive tape; And a contact roller provided at an end of the unit body to form a path from the supply roller to the recovery roller, the contact roller contacting the adhesive tape to the protective film, wherein the supply roller, the recovery roller, It is also achieved by a protective film peeling head unit characterized in that the contact roller is detachably coupled to a predetermined head unit support in a state in which the adhesive tape is installed on the unit body to which the contact roller is coupled.

The unit body has a first plate and a second plate coupled to each other at a predetermined interval, the supply roller is coupled to any one surface of the first plate and the second plate, the contact roller is the first It may be provided at one end of the plate and the second plate.

Here, it may further include a coupling member coupled to the unit body to integrally couple the protective film peeling head unit to the head unit support.

At this time, the coupling member, the shaft portion coupled to the unit body; A screw part formed on an outer surface of the shaft part and screwed to a fastening boss provided in the head unit support part; And a handle operating part formed at one end of the shaft part so as to be fitted to the fastening boss and disposed outside the unit body.

The shaft portion of the coupling member may be fitted into a cutting slot cut in a predetermined length inward from the outer surface of any one of the first plate and the second plate.

The protective film peeling head unit and the head unit support is provided, when the protective film peeling head unit is coupled to the head unit support, may further include a coupling position guide for guiding the coupling position.

The coupling position guide may include a guide bar protruding toward the other from any one of the protective film peeling head unit and the head unit supporting portion; And a bar insertion part formed at another one of the protective film peeling head unit and the head unit support part to insert the guide bar.

At this time, the guide bar may be further formed with a stopper for limiting the insertion depth of the guide bar to the bar insertion portion.

When the contact roller is pressed toward the protective film side, the adhesive tape further includes a tilting part for tilting the protective film peeling head unit at a predetermined angle with respect to the polarizing plate supply so that the adhesive tape can be substantially completely adhered to the protective film. Lose.

Here, the tilting unit, the first bracket coupled to the polarizing plate supply unit; A second bracket coupled to the protective film peeling head unit; A connection part connecting the first bracket and the second bracket; A hinge pin hinged to the first bracket through the connection portion; And an elastic member having both ends coupled to the first bracket and the third bracket coupled to the protective film peeling head unit to return the tilted protective film peeling head unit to its original position.

Both ends of the contact roller in contact with the first plate and the second plate may further include a buffer unit for doubling the buffer force against the contact roller pressed by the protective film, thereby increasing the tilting effect.

The buffer part may be an O-ring made of an elastic material.

Is coupled to any one side of the unit body, it may further include a clamp for preventing the separation of the protective film from the adhesive tape when the protective film is peeled off.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

2 is a configuration diagram of a polarizer attachment device according to an embodiment of the present invention, Figure 3 is a schematic partial enlarged perspective view of the polarizer attachment device of FIG.

As shown in these figures, the polarizing plate attachment device 1 according to an embodiment of the present invention is largely, a polarizing plate attachment portion 70 is coupled to the movable polarizing plate adsorption die 75, and a protective film peeling head unit ( 10) is provided with a polarizing plate supply unit 20 is integrally coupled. These are provided on the work line 50 which has the work position 60 with which the protective film F (refer FIG. 7) is peeled with respect to the polarizing plate P (refer FIG. 7).

The polarizing plate attaching part 70 is a part which attaches the polarizing plate P from which the protective film F was peeled off to one surface of an LCD panel (not shown). Therefore, the polarizing plate attaching part 70 is provided with a structure for holding the LCD panel, a structure for supporting the polarizing plate P, and a structure for attaching the polarizing plate P to the LCD panel.

However, in the present embodiment, since the core is aligned in the process of peeling off the protective film F attached to one surface of the polarizing plate P, the polarizing plate is configured to support the polarizing plate P in the polarizing plate attaching part 70. The adsorption die 75 will be described mainly, but the detailed structure and description of the polarizing plate attachment portion 70 will be omitted. If necessary, reference is made to a technique previously filed and published by the present applicant.

The polarizing plate supply part 20 is a part which supplies the polarizing plate P in which the protective film F was not peeled to the working position 60. FIG. The polarizing plate supply unit 20 transfers the polarizing plate P along the work line 50 in a state in which the polarizing plate P is held by a predetermined vacuum adsorption method or the like, and thus the polarizing plate adsorption die 75 on the working position 60. The polarizing plate P is supplied to it.

In the polarizing plate supply unit 20, a protective film peeling head unit 10 for supplying and recovering the adhesive tape T adhered to the protective film F to peel off the protective film F is integrated with the polarizing plate supply unit 20. Are combined. Therefore, when the polarizing plate supply unit 20 moves to the working position 60 or returns to the original position, the protective film peeling head unit 10 also moves together.

On the other hand, when supplying the polarizing plate (P), in the present embodiment toward the working position 60, the polarizing plate adsorption die 75 of the polarizing plate attachment portion 70 and the protective film peeling head unit 10 is coupled to the polarizing plate supply unit 20 ) Moves in a mutually approaching direction, and the movement of the polarizing plate adsorption die 75 and the polarizing plate supply unit 20 is controlled by a linear motor (not shown).

That is, the linear motor approaches the polarizing plate adsorption die 75 and the polarizing plate supply unit 20 to the working position 60 in order to supply the polarizing plate P, and in order to peel off the protective film F, the polarizing plate adsorption die ( 75) and the polarizing plate supply portion 20 are spaced apart from the working position (60).

In more detail, the polarizing plate supply unit 20 moves to the intermediate position of the initial position of the polarizing plate attaching unit 70 and the polarizing plate supplying unit 20 (0.5L), and at the same time before and after or simultaneously with the polarizing plate adsorption of the polarizing plate attaching unit 70. Die 75 also moves to an intermediate position. Then, the polarizing plate supply unit 20 retreats to the initial position direction of the polarizing plate supply unit 20, so that the protective film peeling head unit 10 provided on the upper surface of the polarizing plate supply unit 20 is positioned on the polarizing plate adsorption die 75 ( Move to match the end of P). Then, while the protective film peeling head unit 10 is in contact with the protective film F on the upper side of the polarizing plate P, the polarizing plate supply unit 20 moves to its original position (0.5L), and at the same time before and after or simultaneously with the polarizing plate adsorption. The die 75 is also able to peel off the protective film F on the upper portion of the polarizer by moving to the original position (0.5L).

As described above, the structure of the apparatus is simplified by combining the protective film peeling head unit 10 with the polarizing plate supply unit 20 so as to move together with the polarizing plate supply unit 20 without providing the protective film peeling head unit 10 as an independent device. This can reduce the footprint caused by the device.

That is, the polarizing plate adsorption die 75 and the polarizing plate supply unit 20 of the polarizing plate attachment unit 70 in the polarizing plate attachment unit 70 and the polarizing plate supply unit 20 disposed to be spaced apart from each other with the working position 60 therebetween. The protective film peeling head unit 10 is provided on one side of the prior art by supplying the polarizing plate (P) and peeling the protective film (F) while approaching and spaced apart from each other through the work line (50) with respect to the working position (60), respectively. There is an advantage that the movement distance (0.5L) can be further reduced. This has the advantage that the tact time is significantly reduced.

FIG. 3 is a partially enlarged perspective view of the polarizer attaching apparatus of FIG. 2, FIG. 4 is an exploded perspective view of region A of FIG. 3, and FIG. 5 is a view illustrating FIG. 4 from another direction, but in which the adhesive tape is removed. 6 is a perspective view of a protective film peeling head unit to which an adhesive tape is bonded.

As shown in these figures, a pair of head unit supports 21 are provided in the upper front region of the polarizing plate supply unit 20 spaced by the width of the polarizing plate P, and the head unit supporting portions 21 are respectively provided. The protective film peeling head unit 10 is detachably coupled.

At this time, the pair of protective film peeling head unit 10 is respectively coupled to the inside of the head unit support (21). Therefore, the pair of protective film peeling head units 10 have a symmetrical structure. Of course, the internal structure and the operations and functions thereof are the same.

The protective film peeling head unit 10 includes a unit body 11, a supply roller 12, a recovery roller 13, and a contact roller 14. The adhesive tape T is wound around the supply roller 12, the collection roller 13, and the contact roller 14. As shown in FIG.

As such, the protective film peeling head unit 10 having the supply roller 12, the recovery roller 13, and the contact rollers 14 and the adhesive tape T is wound thereon is integrally detachable to the head unit support 21. By manufacturing, a new adhesive tape T is installed on the supply roller 12 through a complicated disassembly and assembly process as in the prior art, and a replacement operation for removing the used adhesive tape T from the recovery roller 13 is unnecessary. .

That is, when the use of the protective film peeling head unit 10 is completed or needs to be repaired, the protective film peeling head unit 10 can be easily detached from the head unit support 21 so that a new protective film is separately prepared. The head unit 10 may be exchanged and combined.

Therefore, the man-hours due to the replacement of the adhesive tape (T) is significantly reduced compared to the conventional can reduce the maintenance time. In addition, since the working time is shortened, the operation rate of the device is increased, thereby improving productivity.

The unit body 11 is composed of a first plate 11a and a second plate 11b which are coupled at predetermined intervals from each other. The first plate 11a is coupled to the feed roller 12, the recovery roller 13, and a pair of guide bars 15 for guiding the engagement position, and the coupling member 38, which will be described later, is fitted. It has a relatively larger area than the plate 11b.

The supply roller 12 is a part which is bonded to the plate surface of the 1st plate 11a, and the adhesive tape T which is not used is wound up. Therefore, the new adhesive tape T passes through the contact roller 14 while being unwound through the first feed roller 12 and finally recovered to the recovery roller 13.

To this end, the supply roller 12 needs to control the rotation for a predetermined time in one direction. The supply roller 12 is coupled to the supply roller motor connection part 22 inside the head unit support 21 so that the supply is connected thereto. The drive motor 32 for rollers controls the rotation of the feed roller 12 (refer FIG. 3).

The recovery roller 13 is installed in the central region of the plate surface of the first plate 11a, and adheres to the protective film F to peel off the protective film F, so that the adhesive force T is exhausted. It is the part to be recovered.

The recovery roller 13 is also connected to the recovery roller drive motor 33 connected to the recovery roller 13 by being coupled to the recovery roller motor connecting portion 23 inside the head unit support 21, similarly to the supply roller 12. Rotation is controlled (see FIG. 3). At this time, the supply roller 12 and the recovery roller 13 rotate in the same direction and speed.

The contact roller 14 is provided at the ends of the first plate 11a and the second plate 11b so as to be located at the lowermost end of the protective film peeling head unit 10. The contact roller 14 forms a path in which the adhesive tape T is directed from the supply roller 12 to the recovery roller 13, and the adhesive tape T located on the outer surface of the contact roller 14 is a protective film ( F) It comes in contact with the protective film F at the time of peeling.

In order for the adhesive tape T located on the outer surface of the contact roller 14 to be completely in surface contact with the protective film F, the protective film peeling head unit 10 is lowered to bring the contact roller 14 to the protective film F. Should be pressurized.

In order for the adhesive tape T located on the outer surface of the contact roller 14 to be completely in surface contact with the protective film F, the protective film peeling head unit 10 must be constantly tilted. It is preferable that the contact roller 14 has a buffering force.

To this end, both ends of the contact roller 14 (see an enlarged portion of FIG. 4) in contact with the first plate 11a and the second plate 11b are loosened for the contact roller 14 pressed against the protective film F. The buffer part 14a which doubles an impulse is further interposed. As the shock absorbing portion 14a, any one may be applied, but in this embodiment, an O-ring made of elastic material having a constant elastic force is coupled to the contact roller shaft 14b.

A plurality of spacers 16 are further provided around the contact roller 14, the recovery roller 13, and the supply roller 12. Spacers 16 are provided between the first plate 11a and the second plate 11b so that both ends thereof are fixed to the first plate 11a and the second plate 11b, respectively, so that the first plate 11a and the second plate 11b are fixed. Serve to separate (11b) from each other.

In addition, the spacers 16 are further utilized for applying tension to the adhesive tape T so that the adhesive tape T wound around the supply roller 12, the adhesive roller, and the recovery roller 13 does not sag. 6, the adhesive tape T is supported by the spacers 16 in addition to the supply roller 12, the adhesive roller, and the recovery roller 13, and wound up in a taut state.

On the other hand, as shown in Figure 4 and 5, the coupling member 38 is further used to detach the protective film peeling head unit 10 having the above configuration to the head unit support 21.

Coupling member 38 is formed on the outer surface of the shaft portion 38b, which is fitted to the cutting slot 18 cut in a predetermined length inward from one side of the outer surface of the first plate (11a), the head unit support ( The screw portion 38a which is screwed to the fastening boss 28 provided at 21 and the screw portion 38a are formed at one end of the shaft portion 38b so that the screw portion 38a can be fitted to the fastening boss 28, and the first plate 11a. The handle operation part 38d arrange | positioned at the outer side of this is included.

An enlarged diameter portion 38c larger than the radius of the shaft portion 38b is further formed around the handle operation portion 38d along the longitudinal direction of the shaft portion 38b. Accordingly, the position of the shaft portion 38b of the coupling member 38 is fixed by inserting an area between the enlarged diameter portion 38c and the handle operation portion 38d into the cutting slot 18.

Accordingly, after the shaft portion 38b is inserted into the cutting slot 18, the threaded portion 38a formed on the shaft portion 38b is rotated by rotating the handle operation portion 38d on the outside of the first plate 11a to fasten the boss 28. By being coupled to the protective film peeling head unit 10 can be easily coupled to the head unit support 21.

However, in the present embodiment, the coupling position guide 5 for guiding the coupling position was further provided, which is to be coupled to the protective film peeling head unit 10 to the head unit support 21, the coupling member 38. This is because the hassle and time for fitting the shaft portion 38b to the fastening boss 28 can be reduced.

The engaging position guide 5 is formed on the pair of guide bars 15 protruding from the first plate 11a of the protective film peeling head unit 10 and the head unit support 21 opposite to the guide bars ( And a pair of bar inserts 25 into which 15 is inserted. The guide bar 15 is further provided with a stopper 15a for limiting the insertion depth of the guide bar 15 to the bar insertion portion 25.

Therefore, when the protective film peeling head unit 10 is to be coupled to the head unit support part 21, a pair of guide bars 15 formed on the protective film peeling head unit 10 are attached to the head unit support part 21. It is then very easy to combine the protective film peeling head unit 10 and the head unit support 21 using the coupling member 38, and then inserted into the formed bar insertion portion 25.

Unlike in the present embodiment, the coupling position guide 5 may be formed in the head unit support 21 and the bar insertion portion 25 may be formed in the protective film peeling head unit 10.

On the other hand, as described above, if the adhesive tape (T) is not adhered to the protective film (F), the yield due to peeling off the protective film (F) falls. Therefore, in order that the adhesive tape T may be completely adhered to the protective film F, the protective film peeling head unit 10 is pressed toward the protective film F so that the contact roller 14 is applied to the protective film F. It must be fully adhered.

In this embodiment, for this purpose, by further providing a tilting part 30 for tilting the protective film peeling head unit 10 with respect to the polarizing plate supply part 20, the adhesive tape T in the contact roller 14 is provided. It can be adhered to the protective film (F) substantially completely.

7 and 8 are diagrams schematically showing the tilting process of the protective film peeling head unit, respectively.

As shown in these figures, the tilting unit 30 includes a first bracket 30c coupled to the polarizing plate supply unit 20, a second bracket 30d coupled to the protective film peeling head unit 10, and One end is rotatably coupled to the first bracket 30c to form the hinge shaft 30b, and the other end is connected to the second bracket 30d, 30a, and both ends of the first bracket 30c and the protective film. And an elastic member 30f coupled to each of the third brackets 30e coupled to the peeling head unit 10 to return the tilted protective film peeling head unit 10 to its original position. The elastic member 30f is a tension spring 30f.

In this configuration, as shown in FIG. 7, a separate actuator (not shown) provided in the polarizing plate supply unit 20 has the protective film peeling head unit 10 attached to the polarizing plate P in front of the protective film F. FIG. Lower to the top. In the protective film peeling head unit 10 positioned on the front surface of the protective film F, the contact roller 14 moves to the end of the protective film F before the peeling operation of the protective film F is performed. The protective film F should be peeled off from the end.

In this case, the contact roller 14 is lowered to a position below the end of the protective film F as in the direction of the arrow, whereby the end of the protective film F to start the peeling operation can be confirmed.

Then, when the peeling operation is started, when the contact roller 14 of the peeling head unit 10 moves in the direction of the arrow shown in Fig. 8, the first bracket 30c starting from the hinge shaft 30b. The protective film peeling head unit 10 is tilted to the front side while being opened. With this tilting, the ends of the contact roller 14 and the protective film F achieve complete surface contact. Nevertheless, if the contact roller 14 is not in perfect surface contact due to inclination or the like, the contact roller 14 is pushed further downward so that the O-ring which is a buffer 14a provided at both ends of the contact roller 14 ( 14a) is contracted so that the ends of the adhesive tape T and the protective film F have complete surface contact.

9 is a view showing the clamp device of the protective film peeling head unit.

As shown in this, the clamp 35 is coupled to one side of the protective film peeling head unit 10, in this embodiment is provided on one side in the unit body 11 adjacent to the contact roller (14). Therefore, the clamp 35 has one side of the protective film F when the protective film F is attached to the adhesive tape T of the contact roller 14 and the peeling of the protective film F proceeds. 11) can be prevented from being separated from the contact roller 14 by the protective film (F) peeled off by pressing to the side.

When all the protective film F is peeled off, the protective film F peeled off by the chucking part 40 mentioned later is chucked. At this time, the clamp 35 that presses one side of the protective film F toward the unit body 11 is returned to its original position, so that the chucking part 40 smoothly chucks the protective film F and recovers it.

10 is a perspective view illustrating a state in which the protective film is chucked, and will be described below with reference to FIG. 3 again.

On the other hand, as shown in these figures, the protective film F is peeled off on the work line 50 so that the protective film F can be separated from the adhesive tape T of the protective film peeling head unit 10. The chucking part 40 which chucks one area | region of the further is provided.

The chucking part 40 is provided in a pair so as to be spaced apart from each other on the work line 50 along the horizontal direction with respect to the direction in which the protective film F is peeled off to chuck one region of the protective film F peeled off. As the chucking unit 40 chucks the protective film F, the protective film F, which has been adhered and adhered by the adhesive tape T, may be discarded after being separated from the adhesive tape T.

At this time, as described above, the clamp 35 pressurizing one side of the protective film (F) toward the unit body 11 is returned to the original position, and the chucking unit 40 smoothly chucks the protective film (F). Do it.

The chucking unit 40 is rotatably coupled in at least one direction on both sides of the chucking main body 41 and the chucking main body 41 and the first chucking bar 42 and the second chucking bar chucking the protective film F. FIG. 43 is provided.

Each of the first chucking bar 42 and the second chucking bar 43 has a bent Korean “a” shape with a portion bent, and rotates along the plate surface direction of the polarizing plate P in the chucking body 41. Chucking F). The first chucking bar 42 located on the outside is formed relatively longer than the second chucking bar 43, which is for efficient chucking of the protective film (F).

Referring to a series of processes for peeling the protective film (F) from the polarizing plate using a polarizing plate attachment device having such a configuration as follows.

11 to 13 are views showing the step of peeling the protective film, respectively, step by step,

As shown in FIG. 11, the polarizing plate supply part 20 which vacuum-adsorbed the polarizing plate P with the protective film F once is the initial position (B), and the polarizing plate adsorption die in the polarizing plate attachment part 70 ( 75) is located at the initial position (A).

First, the polarizing plate supply unit 20 horizontally moves along the working line 50 to the area indicated by the dotted line of the working position 60 and supplies the polarizing plate P. FIG. At this time, the protective film peeling head unit 10 positioned on the upper side of the polarizing plate supply unit 20 is also moved to the working position 60 along the working line 50 together with the polarizing plate supplying unit 20.

At the same time or before and after, the polarizing plate adsorption die 75 in the polarizing plate attachment portion 70 also moves horizontally along the working line 50 to the area indicated by the dotted line of the working position 60.

Next, when the polarizing plate supply unit 20 and the protective film peeling head unit 10 reach the working position 60, as shown in FIG. 12, the vacuum is released to the polarizing plate P of the polarizing plate supply unit 20. The polarizing plate P is placed on the polarizing plate adsorption die 75 positioned at the vertical bottom.

Next, when the polarizing plate adsorption die 75 holds the lower surface of the polarizing plate P through vacuum adsorption, and the polarizing plate P supplied thereto is fixedly supported by the polarizing plate adsorption die 75, the protective film peeling head unit 10 is Descend. At this time, the protective film peeling head unit 10 retreats slightly so that the contact roller 14 of the protective film peeling head unit 10 coincides with the end of the polarizing plate P placed on the polarizing plate adsorption die 75 and the initial polarizing plate supply unit 20 ) Can be moved in the position direction.

With the contact roller 14 in contact with the protective film F, the protective film peeling head unit 10 is further lowered so that the ends of the contact roller 14 and the protective film F have complete surface contact. . At this time, in the present embodiment, the tilting unit 30 coupled to the protective film peeling head unit 10 is operated (see FIG. 8), or at the same time, an O-ring (buffer 14a provided at both ends of the contact roller 14). As the O-ring 14a of one side 14a is contracted, the end of the adhesive tape T and the protective film F are in complete surface contact.

When the adhesive tape T is completely in surface contact with the protective film F, as shown in FIG. 13, the polarizing plate adsorption die 75 and the protective film peeling head unit 10 in opposite directions at the working position 60, respectively. The coupled polarizing plate supply unit 20 is spaced apart from each other to move to the initial position (A), (B).

At this time, the protective film (F) begins to peel off gradually in the process of moving away from each other in the opposite direction, one side of the protective film (F) peeled on the upper contact roller 14, the clamp 35 unit unit 11 Press to the side. Accordingly, the peeling operation is performed while preventing the protective film F from being separated from the adhesive tape T of the contact roller 14. When the peeling of the protective film (F) is finished, the end of the protective film (F) is brought into contact with the two contact rollers 14 to be dragged.

At this time, the protective film peeling head unit 10 continues to move to the initial position of the polarizing plate supply unit 20 in the state in which the protective film F is adhered, and passes the top of the chucking unit 40 (see FIG. 10).

During this process, as shown in FIGS. 10 and 13, the chucking unit 40 operates at regular intervals to chuck both ends of the protective film F. FIG. At the same time, the clamp 35 moves to its original position. Since the protective film F chucked by the chucking part 40 is prevented from being moved in place, the end of the protective film F which is in the state adhered to the contact roller 14 is separated and the protective film F is separated. It will be dependent on the chucking portion (40).

At this time, when the chucking unit 40 moves to the original position, the protective film F is lowered to the protective film recovery unit 80 which is a space provided at the bottom of the chucking unit 40 by its own load.

As such, the part of peeling the protective film F is coupled to the polarizing plate supply unit 20 to be moved together, thereby simplifying the overall structure of the device and reducing the footprint, as well as the tact time. Time can also be significantly reduced than before.

In addition, the adhesive film (T) can be easily replaced through the protective film peeling head unit (10), thereby reducing the labor time and maintenance time due to the adhesive tape replacement (T), thereby increasing the operation rate of the device. It becomes high and can improve productivity compared with the conventional.

And by providing the tilting portion 30 and the buffer portion (14a) to reduce the frequency of the conventional adhesive tape (T) is not adhered to the protective film (F) to prevent the protective film (F) from peeling off the protective film (F). The yield can be improved.

In addition, the protective film (F), which was wound together with the adhesive tape (T) to the conventional recovery roller 13 through the separate chucking unit 40 can be separated and recovered separately.

In the above-described embodiment, the first bracket 30c coupled to the polarizing plate supply unit 20 by the tilting unit 30, the second bracket 30d coupled to the protective film peeling head unit 10, and the hinge shaft 30b. Although the use of the spring 30f or the like has been described above, it may be a hydraulic tilting part in which a hydraulic cylinder is embedded as the tilting part 30.

In addition, in the above-described embodiment, the first chucking bar 42 and the second chucking bar 43 having a Hangul “a” shape having a portion of the chucking part 40 bent along the plate surface direction of the polarizing plate P may be used. As described above with respect to the rotation, the shape may be manufactured to stand or snap along the plate direction as the shape of a forceps or a claw.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

As described above, according to the present invention, by combining the portion peeling off the protective film to be moved together by the polarizing plate supply portion, the overall structure of the device can be simplified to reduce the foot print, as well as tact time (Tack Time) can also be significantly reduced than conventional.

In addition, the adhesive tape can be easily replaced to reduce the labor and maintenance time due to the replacement of the adhesive tape, thereby increasing the operation rate of the device to improve productivity than the conventional.

In addition, the adhesive tape may not be adhered to the protective film, thereby reducing the frequency of the protective film not peeling, thereby improving the yield of the protective film peeling.

Claims (33)

A polarizing plate supply unit for supplying a polarizing plate having a protective film on at least one surface to a work position where the protective film is peeled off; And And a protective film peeling head unit coupled to any one side of the polarizing plate supply part to move to the working position together with the polarizing plate supply part to peel the protective film from the polarizing plate at the working position. The method of claim 1, The protective film peeling head unit supplies and recovers an adhesive tape adhered to the protective film for peeling the protective film. The polarizing plate supply unit and the polarizing plate adsorption die, to which the protective film peeling head unit is coupled, are disposed on both sides of the working position on the work line so as to be accessible and spaced apart from each other toward the working position. Attachment device. The method of claim 2, The head unit support part is provided in the upper front region of the polarizing plate supply part, The protective film peeling head unit is a polarizing plate attachment device, characterized in that each detachably coupled to the head unit support. The method of claim 3, The protective film peeling head unit, A unit body having a first plate and a second plate coupled to be spaced apart from each other; A supply roller coupled to any one surface of the first plate and the second plate to supply the adhesive tape; A recovery roller provided at a position spaced apart from the supply roller to recover the used adhesive tape; And And a contact roller provided at end portions of the first plate and the second plate to form a path from the supply roller to the recovery roller, and to contact the adhesive tape to the protective film. Polarizer Attachment Device. The method of claim 4, wherein And a coupling member coupled to the unit body to integrally couple the protective film peeling head unit to the head unit support. The method of claim 5, The coupling member, A shaft coupled to the unit body; A screw part formed on an outer surface of the shaft part and screwed to a fastening boss provided in the head unit support part; And And a handle manipulation part formed at one end of the shaft part so as to be fitted to the fastening boss, and disposed at an outer side of the unit body. The method of claim 6, And a shaft portion of the coupling member is fitted into a cutting slot cut inward from an outer surface of any one of the first plate and the second plate. The method of claim 4, wherein And a coupling position guide provided at the protective film peeling head unit and the head unit supporting portion to guide the coupling position when the protective film peeling head unit is coupled to the head unit supporting portion. The method of claim 8, The coupling position guide, A guide bar protruding from one of the protective film peeling head unit and the head unit support to the other; And And a bar inserting portion formed on the other of the protective film peeling head unit and the head unit supporting portion, into which the guide bar is inserted. The method of claim 9, The guide bar is a polarizing plate attachment device characterized in that the stopper is further formed to limit the insertion depth of the guide bar to the bar insertion portion. The method of claim 4, wherein And a tilting part for pressing the contact roller toward the protective film to tilt the protective film peeling head unit with respect to the polarizing plate supply part so that the adhesive tape is adhered to the protective film. The method of claim 11, The tilting unit, A first bracket coupled to the polarizer supply unit; A second bracket coupled to the protective film peeling head unit; A connection part connecting the first bracket and the second bracket; A hinge pin hinged to the first bracket through the connection portion; And And a resilient member having both ends coupled to the first bracket and the third bracket coupled to the protective film peeling head unit to return the tilted protective film peeling head unit to its original position. The method of claim 4, wherein Both ends of the contact roller in contact with the first plate and the second plate is a polarizing plate attachment device, characterized in that the buffer portion for doubling the buffering force for the contact roller pressed by the protective film. The method of claim 13, The buffer unit is a polarizing plate attachment device, characterized in that the O-ring (O-Ring) of the elastic material. The method of claim 4, wherein Is coupled to any one side of the unit body, the polarizing plate attachment device further comprises a clamp for preventing the separation of the protective film from the adhesive tape when the protective film is peeled off. The method of claim 2, And a chucking part for chucking a region of the peeled protective film so that the peeled protective film can be separated from the adhesive tape of the protective film peeling head unit on the work line. The method of claim 16, The chucking unit is provided with a pair of polarizing plate spaced apart from each other on the work line along the transverse direction in the direction in which the protective film is peeled off. The method of claim 17, The chucking unit, Chucking body; And And a pair of chucking bars rotatably coupled in at least one direction on both sides of the chucking body to chuck the protective film. The method of claim 18, The pair of chucking bar has a Hangul "b" shape of the bent portion, the polarizing plate attachment device, characterized in that the chucking body while rotating along the plate surface direction of the polarizing plate chucking. The method of claim 19, The chucking bar located on the outside of the work line of the pair of chucking bar is longer than the other chucking bar, polarizing plate attachment device. Unit body; A supply roller coupled to the unit body to supply an adhesive tape; A recovery roller provided at a position spaced apart from the supply roller to recover the used adhesive tape; And A contact roller provided at an end of the unit body to form a path from the supply roller to the recovery roller, and to contact the adhesive tape to a protective film; The protective film peeling head unit, characterized in that the supply roller, the recovery roller, the contact roller is detachably coupled to the head unit support unit in the state where the adhesive tape is installed on the unit body coupled. The method of claim 21, The unit body has a first plate and a second plate coupled to be spaced apart from each other, The feed roller is coupled to any one surface of the first plate and the second plate, The contact roller is a protective film peeling head unit, characterized in that provided on the end of the first plate and the second plate. The method of claim 22, And a coupling member coupled to the unit body to integrally couple the protective film peeling head unit to the head unit support. The method of claim 23, wherein The coupling member, A shaft coupled to the unit body; A screw part formed on an outer surface of the shaft part and screwed to a fastening boss provided in the head unit support part; And The protective film peeling head unit, characterized in that it comprises a handle for the handle portion formed on one end of the shaft portion to be fitted to the fastening boss and disposed outside the unit body. The method of claim 24, The shaft portion of the coupling member is a protective film peeling head unit, characterized in that inserted into the cutting slot cut inward from the outer surface of any one of the first plate and the second plate. The method of claim 22, The protective film peeling head is provided on the protective film peeling head unit and the head unit support portion, and when the protective film peeling head unit is coupled to the head unit support portion, further comprising a coupling position guide for guiding a coupling position. unit. The method of claim 26, The coupling position guide, A guide bar protruding from one of the protective film peeling head unit and the head unit support to the other; And The protective film peeling head unit is formed on the other one of the protective film peeling head unit and the head unit support portion comprising a bar insertion portion is inserted into the guide bar. The method of claim 27, The guide bar is a protective film peeling head unit, characterized in that the stopper is further formed to limit the insertion depth of the guide bar to the bar insertion portion. The method of claim 22, And a tilting part configured to press the contact roller toward the protective film to tilt the protective film peeling head unit with respect to the polarizing plate supply part so that the adhesive tape is adhered to the protective film. The method of claim 29, The tilting unit, A first bracket coupled to the polarizer supply unit; A second bracket coupled to the protective film peeling head unit; A connection part connecting the first bracket and the second bracket; A hinge pin hinged to the first bracket through the connection portion; And A protective film peeling head unit comprising: an elastic member having both ends coupled to the first bracket and a third bracket coupled to the protective film peeling head unit to return the tilted protective film peeling head unit to its original position. . The method of claim 22, The protective film peeling head unit, characterized in that the buffer portion for doubling the buffering force for the contact roller pressed to the protective film on both ends of the contact roller in contact with the first plate and the second plate. The method of claim 31, wherein The buffer unit is a protective film peeling head unit, characterized in that the O-ring (O-Ring) of the elastic material. The method of claim 22, A protective film peeling head unit coupled to any one side of the unit body, further comprising a clamp to prevent the separation of the protective film from the adhesive tape when the protective film is peeled off.

Images