KR200203194Y1 - Apparatus for machining a light-guide plate for a liquid crystal display device - Google Patents

Abstract

A processing apparatus for a light guide plate used in a liquid crystal display device is disclosed. The processing apparatus for the light guide plate includes a mounting unit for fixing the injection molded light guide plate in alignment, a transfer unit for linearly moving the light guide plate fixed to the mounting unit, and cutting and cutting a light guide plate linearly moved by the transfer unit. And a PLC control unit for controlling the operations of these mounting units, the transfer unit, and the spindle unit. According to the processing apparatus of the light guide plate of such a structure, since the cutting process and the cutting process of the light guide plate are performed simultaneously, the light guide plate can be processed quickly and with high precision.

Description

Apparatus for machining a light-guide plate for a liquid crystal display device

The present invention relates to a processing apparatus for a light guide plate for a liquid crystal display device, and more particularly, to cut an injection molded light guide plate for a back-light unit of a thin film transistor liquid crystal display device. The present invention relates to a processing device for a light guide plate for cutting at the same time.

Such a light guide plate is injection molded in a flat shape or a weged shape by an acrylic resin or polymethylmethacrylate resin having excellent light transmission. Such a light guide plate may be mounted in a unit of a top-down lighting type in which a light source (called 'back-light') is located at the rear thereof to propagate light emitted from the light source to the front, or The light source is located on its side, and is mounted on a side lighting type unit that propagates the light emitted from the light source to the front side.

In particular, when the light guide plate is used in a side lighting unit, light emitted from the light source and incident through the side of the light guide plate is a medium (low refractive index medium) in a dense medium (high refractive index medium) when it is incident above a specific angle. It is based on the principle that total reflection is not possible.

Therefore, the light guide plate used in the side illumination type unit determines the brightness of the light according to the roughness (surface processing degree) of the side that serves as the incident surface of light. In detail, the rougher the side surface of the light guide plate is, the more light incident on the side surface of the light guide plate causes severe diffuse reflection. At this time, an extinction phenomenon occurs due to the interference of light, thereby reducing the reflection efficiency of the light of the light guide plate as a whole. As a result, the brightness of the light is reduced.

In general, in the case of a light guide plate by an injection molding process used in a side lighting type unit, the side surface formed after cutting the injection hole for injecting the injection material has to be processed with high precision due to its manufacturing characteristics. For this purpose, the injection hole of the light guide plate is cut by the cutting tool, and then the side surface of the injection hole side is cut by the cutting tool. As described above, the process of cutting the injection hole of the light guide plate and the process of cutting the side surface of the injection hole side are performed separately, thereby resulting in poor workability.

In addition, chips generated in the process of cutting the side surface of the light guide plate on the injection port side tend to rotate together without being reliably separated from the cutting edge of the cutting tool, so that the side surface of the light guide plate on the injection port side becomes rough. In the worst case, there is a problem in that the cutting amount of the side surface of the light guide plate is changed by changing the processing position of the light guide plate.

In order to solve the above disadvantages, an object of the present invention is to perform a process of cutting the injection port of the injection molded light guide plate and the process of cutting the side of the injection port side at the same time, thereby quickly processing the light guide plate The present invention provides a processing apparatus for a light guide plate.

Another object of the present invention is to provide a processing apparatus for a light guide plate for a liquid crystal display device, which surface-processes the side surface of the light guide plate with high accuracy by reliably separating the rice from the cutting edge of the cutting tool.

1 is a front view as viewed from the front of the processing apparatus of the light guide plate according to the present invention,

Figure 2 is a right side view as viewed from the right side of the processing apparatus of the light guide plate according to the present invention,

Figure 3 is a rear view as seen from the back of the processing apparatus of the light guide plate according to the present invention,

Figure 4a is a view showing a mounting unit and a transfer unit of the processing apparatus of the light guide plate according to the present invention,

Figure 4b is a view showing the light guide plate alignment of the mounting unit of the processing unit of the light guide plate according to the present invention,

5 is a view showing the spindle unit of the processing apparatus of the light guide plate according to the present invention.

* Explanation of symbols for the main parts of the drawings *

100: transfer unit 131: bracket

132: stopper 133: contact sensor

141a, 141b: rod 142, 224: pneumatic actuator

161: working jig 162a: suction hole

211: timing belt 212, 325, 345: servo motor

221: guide rail 222: guide dog

321, 341: spindle head 322: fixing bracket

326: cutting tool 346: cutting tool

324, 344: Belt

In order to achieve the above object, the present invention provides a mounting unit for fixing an injection molded light guide plate in alignment, a transfer unit for linearly moving a light guide plate fixed to the mounting unit, and a light guide plate for linear movement by the transfer unit. And a PLC control unit for controlling the operation of the mounting unit, the transfer unit, and the spindle unit.

The processing apparatus of the light guide plate for liquid crystal display according to the present invention is excellent in workability because the cutting and cutting processing are performed simultaneously while linearly moving the injection molded light guide plate, which is the object to be processed, and from the cutting edge of the cutting tool, The machining accuracy is high because it is reliably separated.

Hereinafter, a processing apparatus of a light guide plate for a liquid crystal display according to the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1 showing a processing apparatus of a light guide plate for a liquid crystal display according to the present invention, FIG. 2 showing a right side view, and FIG. 3 showing a rear view, respectively, the processing apparatus of the light guide plate may include an injection molded light guide plate. Mounting unit 100 for aligning and fixing securely, transfer unit 200 for linearly moving the light guide plate fixed to the mounting unit 100, and spindle for cutting / cutting the light guide plate linearly moved by the transfer unit. A unit 300 and a PLC control unit for controlling the operation of the mounting unit 100, the transfer unit 200 and the spindle unit 300.

The processing apparatus of the light guide plate may further include a vacuum suction unit 400 for sucking the light cutting rice and the rice generated in the process of cutting and cutting the light guide plate by the spindle unit 300.

The vacuum suction unit 400 includes a vacuum generator and a foreign matter collection case 410 therein. The collection case 410 is connected to the collection case 310 provided below the spindle unit 300 via the suction pipe 420. Therefore, the light and the cutting of the cutting and cutting the cutting and cutting by the spindle unit 300 is dropped to the collection case 310 by the vacuum suction force of the vacuum suction unit while the collection case 410 through the suction pipe 420 ), The weight is collected while falling to the collection case 310 by its own weight.

The collection case 310 and the collection case 410 of the vacuum suction unit of the spindle unit is attached to the handle so that the operator can collect the cut rice and the rice to reach a certain amount in a separate container. In this way, since the light-cut rice and the rice generated from the light guide plate cut and cut by the spindle unit 300 are collected in the collection case 410 of the vacuum suction unit 400, the operator is required for cutting and cutting. No damage is caused by the cutting bob and the chips scattered by the rotational force of the tool.

The PLC control unit includes a PLC circuit for electrically connecting the mounting unit 100, the transfer unit 200, and the spindle unit 300 to an external power source, and a control panel for applying a control signal to the PLC circuit. do.

The control panel includes a touch panel 510 including various touch switches for detecting a worker's contact with a work command displayed on a display screen to operate the units, and a spare for the failure of the touch panel 510. As an auxiliary panel 520 performing the same function as the touch panel 510. The auxiliary panel 520 includes various button switches corresponding to the touch switches of the touch panel 510.

Referring to FIG. 4 schematically showing the mounting unit 100 as an imaginary line and the conveying unit 200 as a solid line, which is schematically shown as a front view, a top view and a left side view by the orthographic projection method, the mounting unit 100 is A light guide plate alignment portion 110 for aligning the processing position with respect to the processing portion of the light guide plate, and a light guide plate fixing portion for sucking and / or pressing the light guide plate aligned by the light guide plate alignment portion to fix the processing position with respect to the processing portion of the light guide plate. And 160.

Referring to FIG. 4B, which is illustrated as a front view, a plan view, and a right side view by the orthographic projection method, the light guide plate alignment unit 110 includes a pusher 120 for applying a thrust to the light guide plate, and a light guide plate pushed by the pusher 120. And a contact portion 130 in contact with the contact portion, and an adjusting portion 140 for adjusting the position of the contact portion 130.

The pusher 120 is a pneumatic actuator having a rod 121 in contact with the opposite side of the processing portion of the light guide plate, and is fixed on the work jig 161 to be described later by a nut that is a conventional fastening member. The position at which the pusher is fixed on the work jig 161 is influenced by the size of the light guide plate. To this end, the working jig 161 is formed with a plurality of fastening holes 125 having a thread at a predetermined position at regular intervals. Therefore, when the light guide plate is placed on the work jig 161 by an operator, the pusher 120 pushes the light guide plate toward the contact portion 130 to be described later.

The contact portion 130 is a bracket 131 having a length corresponding to the width of the processing portion of the light guide plate and a pair of displaceable pairs which are slidably installed at both ends of the bracket 131 to contact the processing portion of the light guide plate. The stopper 132 and a pair of contact sensors 133 which respectively detect the displacement of this pair of stoppers 132 are provided.

Each of the pair of stoppers 132 is a micrometer capable of precisely adjusting the moving distance to correct the alignment deviation with respect to the machined portion of the light guide plate when contacting both ends of the machined portion of the light guide plate. In addition, the pair of stoppers 132 is affected by the position of the bracket 131 depending on the position of the injection hole of the light guide plate. For example, when the injection hole of the light guide plate is located at the center of the processing unit of the light guide plate, the pair of stoppers 132 are installed to be in contact with both sides of the processing unit of the light guide plate, respectively.

Guide pins 135 are fixed to both ends adjacent to the stopper 132 at both ends of the bracket 131 on which the pair of stoppers 132 are installed. Therefore, one side of the guide pin is fixed to the bracket 131, the other side of the guide pin is fixed by a separate fixing plate 134. The fixing plate 134 is fixedly coupled to the front end of the stopper 132 at the center thereof. The compression spring 138 is disposed between the fixing plate 134 and the bracket 131. The stopper 132 is elastically biased to one side by the elastic force of the compression spring 138, and the distance between the fixing plate 134 and the bracket 131 is always kept constant. The contact sensor 133 interlocked with the pair of stoppers 132 is fixed to the bracket 131 and is contacted by the fixed plate 134 fixedly coupled to the front end of the stopper 132.

Thus, the pair of stoppers 132 are in a small amount displacement in the direction of action of the thrust while contacting the processing portion of the light guide plate pushed by the thrust of the pusher 120 and do not cause any further displacement, that is, the final displacement. In contact with the contact sensor 133 at the time. In this case, the contact sensor 133 is interlocked with a sound device for generating a specific sound or a light emitting device for emitting a specific light in order to inform the worker of the operation state. Then, the contact portion 130 including the pair of stoppers 132 and the contact sensor 133 is reversed by the pneumatic actuator 142 of the adjustment portion 140 of the light guide plate alignment portion, which will be described later. The contact force is released from the contact sensor 133 by the compression force of the compression spring 138. If the contact sensor 133 is not operated so that no specific sound or light is generated, it means that the processing unit of the light guide plate is not suitable to be processed as being in an unaligned state.

Optionally, the stopper 132 and the contact sensor 133 may not be installed at both ends of the bracket 131, but may be installed only at one end thereof. In this case, the other end of the bracket 131 is integrally formed with a contact surface corresponding to the position where the stopper comes into contact with the processing portion of the light guide plate when the stopper is finally displaced toward the processing portion of the light guide plate.

The adjusting unit 140 of the light guide plate alignment unit 110 includes at least three rods 141a and 141b coupled side by side to the bracket 131 of the contact unit 130, and pneumatics for linearly moving the rods 141. Actuator 142 is provided.

The three rods 141a and 141b may each have a polygonal or circular cross section. The two rods 141b disposed on both sides of the three rods are guide rods that guide and prevent deflection of the bracket 131, and one rod 141a disposed at the center is the pneumatic actuator 142. It is combined with the operating rod for operating the bracket 131. Optionally, the guide rod 141b may also be combined with the pneumatic actuator 142, like the actuation rod 141a. The pneumatic actuator 142 is mounted to a fixed block 145 fixed to the fixed table 50. By the operation of the pneumatic actuator 142, the contact portion 130 is displaced by a predetermined distance.

The guide rod 141b has a shock absorbing means at an end of the contact portion 130 opposite to the bracket 131. The shock absorbing means includes a fixed plate 146 coupled to the end of each of the guide rods 141b by a fastening member 149 such as a hexagonal head bolt, and an actuating rod installed in the center of the fixed plate and coupled to the pneumatic actuator 142. A damper 147 is provided so as to coincide with the center line of 141a. The damper 147 limits the moving distance of the bracket 131 according to the operation of the pneumatic actuator 142, and at the same time serves to absorb the impact caused by the collision with the pneumatic actuator 142 generated at this time. In particular, the damper 147 is provided with an adjusting nut 148 for correcting an error with respect to the moving distance of the bracket 131.

Therefore, the processing amount of the processing portion of the light guide plate is primarily adjusted by the micrometer 132 of the contact portion 130, and is secondarily adjusted by the adjusting nut 148 provided on the damper of the adjusting portion 140. do. However, it should be noted that the processing amount for the processed portion of the light guide plate may be adjusted only by the micrometer 132 of the contact portion 130.

The light guide plate fixing part 160 includes a work jig 161 on which the light guide plate is placed, a vacuum suction part 162 for vacuum suction of a lower surface of the light guide plate on the work jig, and the vacuum suction part 162. A pressing unit 163 for pressing the upper surface of the light guide plate in close contact with the light guide plate is provided.

The vacuum suction unit 162 includes a plurality of suction holes 162a formed in the working jig 161 with a predetermined diameter, and a vacuum generator 162b installed through a connection pipe so as to communicate with the suction holes. ). The pressing portion 163 is coupled to the pressing plate 163a having a width corresponding to the upper surface of the light guide plate, the operating rod 163b coupled to the pressing plate, and the operating rod 163b to selectively contact the upper surface of the light guide plate. And a pneumatic actuator 163c for applying a compressive force to the pressing plate.

The light guide plate is in close contact with the work jig 161 by the vacuum suction unit 162, and the light guide plate in close contact with the work jig 161 is pressed by the pressing unit 163. As a result, the light guide plate is firmly fixed on the work jig 161.

However, it should be noted that the pressurizing portion 163 is only an option, since the light guide plate can be sufficiently secured to the work jig 161 by the vacuum suction portion 162. Therefore, in the present invention, instead of the pressurizing unit 163, a device for removing static electricity such as an ion generator may be mounted so that the cutting rice and the cutting rice do not approach the light guide plate.

The transfer unit 200 includes a driving unit 210 for linearly moving the light guide plate fixing unit 160 of the mounting unit 100 to fix the light guide plate in an aligned state, and a light guide plate fixing unit linearly moved by the driving unit 210 ( And a linear movement guide 220 for guiding 160.

The driving unit 210 includes an indirect power transmission unit 211 coupled to the light guide plate fixing unit 160, a driving source 212 transmitting a driving force to the indirect power transmission unit 211, and the driving source 212. It is provided with a predetermined distance is provided with a driven source 213 for supporting the indirect power transmission means 211.

The indirect power transmission means 211 may be an endless chain or belt, in particular a timing belt that can easily control the movement position of the light guide plate fixing portion 160 is used. The drive source 212 is a servo motor having excellent operating characteristics. The driven source 213 is a driven roller wound by the indirect power transmission means 211 and provided with a tension adjusting member 213a for adjusting the tension of the indirect power transmission means 211.

Accordingly, the timing belt 211 has an upper and lower transfer section between the servo motor 212 and the driven roller 213, a first transition section on the servo motor 212 side, and a second transition section on the driven roller 213 side. Rotate forward and reverse along. Therefore, the light guide plate fixing part 160 is preferably coupled to a part of the timing belt 211 belonging to the upper transfer section.

The servo motor 212 transfers the unprocessed light guide plate to the machining position by forward rotation and returns the finished light guide plate to the machining preparation position by reverse rotation. In addition, the servo motor 212 can transfer the light guide plate at a low speed in the processing section of the light guide plate and at a high speed in the other section due to its operation characteristic, thereby increasing the processing speed of the light guide plate.

The linear movement guide part 220 includes a guide rail 221 provided on the fixed table 50, a guide dog 222 slidably coupled to the guide rail 221, and the guide dog 222. And a mounting plate 223 coupled to the mounting plate 223, and an interference prevention driving source 224 fixed to the mounting plate 223 to selectively move the work jig 161 of the light guide plate fixing unit 160.

The guide rail 221 has a shape having a cross section such as a triangle, a square, a semicircle, and the like, and is fixed on the fixing table 50. The guide dog 222 has a groove having a cross section corresponding to a cross section of the guide rail 221 on a lower surface thereof, and is slidably coupled to the guide rail 221. The mounting plate 223 is coupled to the upper surface of the guide dog 222. Guides 225 are fixed to both sides side by side on the upper surface of the mounting plate 223, and a stopper 226 is fixed to the middle front of the guide 225, and to prevent interference at a position spaced slightly rearward from the stopper. Pneumatic actuator 224 is fixed.

The guide 225 is slidably coupled to the sliding part 167 formed in the working jig 161 of the light guide plate fixing part 160. The stopper 226 is interlocked with the damper 168 mounted on the work jig 161 of the light guide plate fixing part. The pneumatic actuator 224 is coupled to the light guide plate fixing part 160 via an actuating rod 224a, and the spindle unit 300 to be described later when returning the light guide plate fixing part 160 from the finished position to the processing ready position. The linear movement of the light guide plate fixing part 160 in a direction away from the spindle unit 300, that is, toward the operator, is avoided in order to avoid interference with the panel. Thus, the damper 168 is an impact caused by the collision with the stopper 226 when the fixing portion 160 of the light guide plate is returned to its original position after the linear movement of the light guide plate by the operation of the interference prevention pneumatic actuator 224 It serves to absorb.

When the light guide plate fixing portion 160 is moved from the preparation position to the processing completion position by the linear movement guide portion 220, the guide dog 222 does not involve a positional change with respect to the guide dog 222, but vice versa. When moving from the machining completion position to the machining preparation position is accompanied by a position change with respect to the guide dog 222.

Referring to FIG. 5 schematically showing the spindle unit 300 as a front view, a right side view, and a plan view by an orthographic projection method, the spindle unit 300 may include a cutting unit for cutting an injection hole integrally formed in a processing unit of a light guide plate ( 320, and a cutting part 340 for cutting side surfaces of the light guide plate cut by the cutting part.

The cutting unit 320 is a cutting spindle head 321 is coupled to the cutting spindle head 341 fixed to the fixed table 50, and the fixing bracket 322 via the cutting spindle head 321 And a cutting drive source 325 for transmitting rotational force through the indirect power transmission means 324 to the cutting spindle 323 coupled thereto.

The cutting spindle 323 is supported by the fixing bracket 322 in the middle portion thereof, the indirect power transmission means 324 is wound on the upper end portion thereof, and the cutting tool 326 is detachable at the lower end portion thereof. It is a fixed configuration. In addition, the cutting spindle 323 has a height adjusting handle 327 for adjusting the vertical movement distance relative to the fixing bracket 322. The height adjusting handle 327 adjusts the cutting depth of the cutting tool 326 for cutting the injection hole of the light guide plate. The cutting drive source 325 is a servo motor having excellent operating characteristics according to working conditions.

The cutting portion 340 includes a cutting spindle head 341 fixed to the fixed table 50, a cutting spindle 342 supported by the cutting spindle head 341, and the cutting spindle 342. It is provided with a cutting drive source 345 for transmitting the rotational force through the indirect power transmission means (344).

The cutting spindle head 341 is installed in the horizontal direction compared with the cutting spindle 322, but is fixed to the fixing table 50 to have a downward gradient toward the light guide plate fixing part 140 to which the light guide plate is fixed. . Therefore, the rotation center line of the cutting spindle 342 crosses the rotation center line of the cutting spindle 322 at an acute angle θ when viewed in the feed direction of the light guide plate when the light guide plate is processed.

The cutting tool 346 has a cutting edge fixed to one of two triangular grooves 346a and 346b which are radially symmetrical to one surface of a cylinder of a predetermined thickness. Most preferably, the cutting edge of the cutting tool 346 protrudes from about 0.1 mm to 0.2 mm in the triangular groove. In this case, when the cutting edge of the cutting tool 346 protrudes 0.2 mm or more, a problem occurs such that the processing portion of the light guide plate is roughened or the cutting edge is broken. The two triangular grooves 346a and 346b of the cutting tool 346 serve as counterweights with respect to the other.

The cutting tool 346 is installed to be inclined with respect to the processing part of the light guide plate, but the cutting edges are installed side by side with respect to the processing part of the light guide plate. Therefore, the chips generated by the cutting tool 346 for cutting the processing portion of the light guide plate are reliably separated from the cutting edge of the cutting tool and collected in the collection case 310 (see FIG. 1). As a result, the problem that the cutting rice rotates together with the cutting tool 346 causes processing defects on the processing portion of the light guide plate.

The cutting spindle head 321 is provided with a processing amount adjusting means 328 to be moved relative to the cutting spindle head 341 to adjust the position. The processing amount adjusting means 328 is a fixed portion 328a fixed to the upper side of the cutting spindle head 341, and an adjusting portion 328b fixed to the lower side of the cutting spindle head 321 through the fixed portion. It is provided. This adjusting portion 328b is screwed to the cutting spindle head 321 to be operable by a fastening tool such as a spanner. Therefore, the movement amount of the cutting spindle head 321 is equal to the movement amount of the cutting spindle 323, and as a result, the cutting position of the processing portion of the light guide plate, in particular, the cutting position of the injection hole of the light guide plate is adjusted.

However, although the cutting tool 326 is mainly used to cut the inlet of the light guide plate, the cutting tool 326 may cut the inlet of the light guide plate according to the adjustment range of the processing amount adjusting means 328 and simultaneously cut the side surface of the light guide plate. .

It is preferable that both the cutting tool 326 and the cutting tool 346 are rotated at appropriate rotational speeds by the respective driving sources 325 and 345. If these tools 326 and 346 rotate too fast, In this case, the processed portion of the light guide plate causes melting by contact frictional heat with the tool. On the contrary, if these tools 326 and 346 rotate too slowly, the processed portion of the light guide plate is roughened. As described above, when the cutting tool 326 and the cutting tool 346 deviate from the proper rotation speeds, the processing portion of the light guide plate is treated as a machining defect. The cutting tool 326 may deviate from the proper rotation speed to some extent, but the cutting tool 346 may maintain the proper rotation speed to prevent processing failure of the light guide plate.

The light guide plate processing apparatus according to the present invention as described above generally consists of a processing preparation step of the light guide plate, a processing step, returning to the processing preparation step after completion of processing.

The process of preparing the light guide plate is a process of placing the light guide plate on the work jig 161 of the light guide plate fixing part 160 of the mounting unit 100 and fixing the light guide plate in an aligned state. This process is to be fixed by the light guide plate fixing portion 160 while the raw light guide plate placed on the working jig 161 by the user is aligned by contact with the contact portion 130 while being pushed by the pusher 120.

The processing step of the light guide plate is a process of cutting and cutting by the spindle unit 300 while linearly moving the light guide plate fixed on the work jig 161 by the transfer unit 200. In this process, the light guide plate fixing part 160 is moved along the linear movement guide part 220 by the forward driving of the transfer unit, and the inlet of the light guide plate is cut at the cutting part 320 of the spindle unit, and then the side surface thereof is cut. .

The returning step of the light guide plate is a process of returning the processed light guide plate to the initial position while avoiding interference with the spindle unit 300 by reverse driving of the transfer unit 200. In this process, the light guide plate fixed to the light guide plate fixing part 160 is moved by the interference preventing pneumatic actuator 224 a predetermined distance toward the operator, and then linearly moved by the reverse driving of the transfer unit 200 to return to the initial position. will be.

According to the processing apparatus of the light guide plate for liquid crystal display according to the present invention, since the process of cutting the injection hole of the injection molded light guide plate and the process of cutting the side surface thereof are performed at the same time, the light guide plate can be processed quickly. In addition, the light guide plate can be processed with high accuracy by reliably separating the chips from the cutting edge of the cutting tool during the cutting process.

The processing apparatus of the light guide plate according to the present invention is a semi-automatic system that requires a process in which a light guide plate is mounted on a work jig by an operator, but is equipped with a tray in which several unprocessed light guide plates are loaded, and the work guide is vacuum-adsorbed on the light guide plate loaded on the tray. It should be noted that it may be a fully automatic system by using it with a light guide plate feeder composed of a transfer robot which transfers the phase and takes out the finished light guide plate by the spindle unit. The processing apparatus of the conduit plate according to the present invention configured as described above may be operated as a fully automatic system.

Claims (6)

A mounting unit to fix the injection molded light guide plate in an aligned state; A transfer unit for linearly moving the light guide plate fixed to the mounting unit; A spindle unit for cutting and cutting the light guide plate linearly moved by the transfer unit; And A PLC controller for controlling operations of the mounting unit, the transfer unit, and the spindle unit; Processing apparatus for a light guide plate for a liquid crystal display device, characterized in that it comprises a. The apparatus of claim 1, further comprising a vacuum suction unit for vacuum sucking the chips and the chips generated from the light guide plate cut and cut by the spindle unit. 3. The mounting unit according to claim 1 or 2, wherein the mounting unit sucks the light guide plate alignment unit for aligning the processing position with respect to the processing unit of the light guide plate and the light guide plate aligned by the light guide plate alignment unit. And a light guide plate fixing portion for fixing the processing position thereof. The liquid crystal display according to claim 1 or 2, wherein the transfer unit includes a driving unit for linearly moving the light guide plate fixing unit of the mounting unit and a linear moving guide unit for guiding the light guide plate fixing unit linearly moved by the driving unit. Processing equipment for light guide plate for display device. The light guide plate according to claim 1 or 2, wherein the spindle unit includes a cutting part for cutting an injection hole of the light guide plate and a cutting part for cutting a side surface of the light guide plate cut by the cutting part. Processing equipment. The liquid crystal of claim 5, wherein the cutting part has a rotation center line of the cutting tool that forms an acute angle with the rotation center line of the cutting tool of the cutting part when viewed from the direction of transport of the light guide plate when the light guide plate is processed. Processing equipment for light guide plate for display device.