KR100990444B1 - Thin class polishing device for display window, and polishing process system - Google Patents

Abstract

The present invention relates to an apparatus for polishing thin glass for a display window, comprising: a grinding wheel for grinding thin glass; A motor driving part fixedly connected to a central axis of the grinding wheel to rotate the grinding wheel; An XYZ stage supporting the motor driver and allowing the motor driver to move in the XYZ direction; And an imitation wheel that is spaced apart from the grinding wheel at a predetermined distance and induces processing according to the shape of the thin glass which is fixedly connected to the XYZ stage.
According to the present invention, through the stage that can adjust the angle, X, Y, Z, the angle and chamfering of the thin glass can be polished at the same time at the right center position and the right angle, and each polishing surface of the thin glass There is an effect that can be quickly produced in a precise and constant form,
In addition, each polished surface is not only precise, but no chipping occurs, yield improvement and high quality display window thin glass can be obtained. There is another effect of improving quality when strengthening.

Description

THIN CLASS POLISHING DEVICE FOR DISPLAY WINDOW, AND POLISHING PROCESS SYSTEM}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polishing apparatus and a polishing process system for thin glass for display windows. More specifically, the present invention relates to polishing the outer surface of a thin glass for display window of a mobile phone. A new polishing apparatus and a polishing process system using the same.

As is well known, a thin and transparent glass sheet is used as a display window for displaying the operation status in small electronic products such as mobile phones, navigation, PDF, MP3 and the like. In addition, tempered glass or the like may be used for a touch pad of such a small mobile or terminal.

Such a small glass plate (hereinafter referred to as `` thin glass '') has a feature that requires a great deal of attention in the processing process, as well as precise processing, should be given the least stress in the processing process, and also requires an efficient processing speed, etc. .

In general, when chamfering or chamfering thin glass, the diamond wheel is brought into contact with each side of the thin glass while being rotated at a constant speed while being placed on an adsorber.

In this case, in order to obtain the most ideal grinding state, when the vertical center axis of the diamond wheel and the cutting surface of the glass meet horizontally and vertically, they can be polished in an ideal shape with the best quality. Laminated glass has a problem that it is difficult to obtain a high quality product because it is difficult to maintain the contact state with the diamond wheel at a right angle.

The conventional planar devices have a lot of problems due to the characteristics of the device structure. The plate material to be processed is laminated on the base of the planar device and then pressurized from the top to press the stacked plate material and the side surface of the planar tool It processes the side while moving, that is, the action of cutting. Since the device that presses the upper part of the sheet glass is fixed, the four sides of the plate cannot be processed at once, so one side or both sides are processed first and then pressed. They had to go through the process of moving the device or reorienting the plate and then machining the sides in the other direction.

In addition, looking at the conventional method of polishing the thin glass, the conventional polishing technique is to cut and chamfer each side of the cut thin glass directly with a human hand, or to supply automatically using a transfer device to chamfer and chamfer the thin glass Even if the processing is completed at the same time, the exact position between the laminated glass and the polishing tool cannot be matched, so that each side and the chamfered surface of the display window thin glass cannot be manufactured in a uniform shape, and thus high quality laminated glass cannot be obtained. Not only are each side not precise, but each side of the chamfered surface is non-uniform, productivity and work efficiency decreases, and chipping occurs during polishing, which causes problems of stress stress and fine cracks, thereby providing a cause of problems in reinforcement. do.

An object of the present invention for solving the above-mentioned problems is to provide a uniform surface and chamfering surface and a uniform product by producing a process that was previously separated from each process on one table do.

In addition, the faceted and chamfered surfaces are not only more precise, but also can produce high-quality display window laminated glass, improve the yield, and prevent the occurrence of stress and cracks during polishing, thereby improving quality. Another aim is to improve.

Features of the present invention for solving the above problems is a grinding wheel for grinding thin glass; A motor driving part fixedly connected to a central axis of the grinding wheel to rotate the grinding wheel; An XYZ stage supporting the motor driver and allowing the motor driver to move in the XYZ direction; And an imitation wheel which is fixedly spaced apart from the lower portion by a predetermined distance from the grinding wheel and induces movement of the grinding wheel to be processed into the shape to be processed while rotating in contact with the imitation cam of a shape to be processed.

Here, the motor drive unit preferably includes an air motor and a jig for mounting the air motor.

Further, another feature of the present invention is a polishing apparatus is a plurality of thin glass polishing apparatus arranged in a circular step by step a plurality of rotatable polishing device portion; A sheet glass support unit in which a polishing jig module for seating the sheet glass to be processed is arranged in a plurality in a circle corresponding to the polishing apparatus; And a driving unit to rotate the thin glass support part about the circular center axis, wherein the polishing jig module is movable up and down, and is rotatable about an axis to adjust the contact position with the polishing device part. will be.

Here, the polishing apparatus, the grinding wheel for grinding the fixed thin glass; A motor driving part fixedly connected to a central axis of the grinding wheel to rotate the grinding wheel; An XYZ stage supporting the motor driver and allowing the motor driver to move in the XYZ direction; And a mimic wheel which is fixedly spaced apart from the lower portion at a predetermined distance from the grinding wheel and induces movement of the grinding wheel to be processed in the shape to be processed while rotating in contact with a mimic cam of a shape to be processed. .

In addition, the motor drive unit preferably includes an air motor, a jig for mounting the air motor, and a loading unit in which a plurality of laminated glass to be processed is loaded and shipped from the loading unit to the polishing apparatus. It is preferable to further include a transfer device for transferring the at least one thin glass.

In addition, the polishing jig module preferably includes a support for supporting the thin glass, an imitation cam having a shape in which the thin glass is to be polished, a power lock and a housing for fixing the support, and the support is made of a resin ( RESIN) and a plurality of through holes capable of vacuum adsorption at predetermined intervals for adsorbing the thin glass are formed, and the hair wheel is in contact with the copy cam and moves according to the shape of the copy cam. desirable.

According to the present invention as described above, the sheet glass automatically supplied through the transfer device is automatically supplied to the inside of the chamfering and chamfering module, the correct center position through the stage to adjust the X, Y, Z, the angle and mounted The grinding and chamfering of the thin glass at right angles can be polished at the same time, and then automatically withdrawn by the transfer device, so that each polishing surface of the thin glass can be manufactured quickly and more precisely and uniformly.

In addition, each polished surface is not only precise, but no chipping occurs, yield improvement and high-quality display window thin glass can be obtained. There is another effect of improving the quality during reinforcement by not generating stress stress and fine cracks.

1 is a view illustrating the configuration of a thin glass polishing jig module and a polishing apparatus according to the present invention;
2 is a view showing a polishing process system for grinding thin glass or thin glass as another embodiment according to the present invention;
Figure 3 is an embodiment according to the present invention, a view showing a structure in which the laminated glass is transferred to the processing system in the loading unit.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view illustrating the configuration of a thin glass polishing jig module and a polishing apparatus according to the present invention. As shown in Figure 1, the grinding jig module according to the present invention is a support for mounting or supporting the thin glass 10 on one axis line, the imitation cam 211 having a shape to be processed, fixing the support The power lock 212 and the housing 213 are assembled in order. Since the thin glass 10 is polished in the shape of the mimic cam 211, the mimic cam 211 and the thin glass 10 are simultaneously held by a position clamp to create an accurate center between the mimic cam 211 and the thin glass 10. Clamp. Then, the thin glass 10 on the polishing jig module 200 is positioned according to the shape of the imitation cam 211. Once the position is determined, the cylinder of the position clamp is reversed.

When the gear connected to the power lock 212 and the gear on the turntable 50 are bitten and the turntable 50 driven by the motor rotates, the polishing jig module 200 rotates at a constant speed.

Here, the support is preferably made of a material such as resin (RESIN) having a certain ductility so as not to damage the thin glass 10 or the thin glass 10, and the support is vacuum-sorption so as to seat and support the thin glass 10 A plurality of through holes are formed to enable this. An external vacuum pump connected to the through hole sucks air to adsorb the thin glass 10 (not shown).

And, as shown in FIG. 1, the structure of the thin glass 10 grinding | polishing apparatus which concerns on this invention is the grinding wheel 104 for grinding the thin glass 10; A motor driving part fixedly connected to the central axis of the grinding wheel 104 to rotate the grinding wheel 104; An XYZ stage (108) for supporting the motor driver and allowing movement in the XYZ direction of the motor driver; And fixedly spaced below and fixedly connected to the grinding wheel 104 at a predetermined distance, and induces movement of the grinding wheel 104 to be processed in the shape to be processed while rotating in contact with the imitation cam 211 having a shape to be processed. It includes a mimic wheel 110.

Specifically, in the configuration of the polishing module, the grinding wheel power lock 105 and the air vane motor which fix the grinding wheel on the same axis as the grinding wheel 104 which is the diamond wheel for polishing the thin glass 10. A jig 115 capable of mounting the air motor 106 and an XYZ stage 108 capable of adjusting the position and angle in the X, Y and z directions to precisely adjust the position of the jig. The control unit is equipped with a micrometer 107.

In addition, an imitation wheel 110 that moves in accordance with the shape of the imitation cam 211 is mounted below the same axis as the grinding wheel 104. That is, the imitation wheel 110 abuts as the imitation cam 211 rotates is moved according to the shape of the imitation cam 211 which is a machining shape, and the grinding wheel 104 is located on the same axis as the imitation wheel 110. As the air motor 107 rotates at a high speed, the thin glass 10 is polished like a processed shape.

As such, the support of the thin glass 10 and the polishing apparatus are adjacent to each other, and when the polishing jig module 200 of the support rotates at a constant speed, the polishing module of the thin glass 10 is coplanar with the thin glass 10. When the grinding wheel 104 of the grinding wheel 104 is rotated and the grinding wheel 104 is pushed by the sheet glass 10 with a constant force, surface grinding is performed. At this time, the rotation speed of the grinding wheel 104 is made while rotating between 2000rpm and 5000rpm

2 is a view showing a polishing process system for grinding thin glass 10 or thin glass 10 as another embodiment according to the present invention, and FIG. 3 is an embodiment according to the present invention. Figure 500 is a view showing a structure in which the thin glass glass 10 is transferred to the process system.

As shown in FIG. 2, the polishing process system according to the present invention includes a polishing apparatus comprising: a plurality of polishing apparatuses in which a thin glass 10 polishing apparatus is arranged in a circular shape and rotatable; A support plate for laminating the glass jig module 200 for seating the thin glass 10 to be processed, the plurality of which are arranged in a circle corresponding to the polishing device; The thin glass 10 includes a driving unit for rotating the support about the circular center axis, wherein the polishing jig module 200 is movable up and down, and can be rotated around the axis to the polishing device portion and It is characterized by adjusting the contact position of.

Here, the polishing apparatus part is a plurality of polishing apparatus 100 described above is arranged in a circle, a plurality of polishing jig module 200 corresponding to each of the polishing apparatus 100 is again arranged in a circle, The polishing jig module 200 is a continuous process system that moves while rotating about a central axis of the process system, and proceeds with different polishing processes.

The system of the present invention includes a drive motor 60 in the form of a turntable 50 to rotate the plurality of polishing jig modules 200, and engages with the drive motor 60 and the teeth 65 installed in the base of the processing system. The plurality of polishing jig modules 200 are rotated through the rotation of the drive motor 60. As described above, each process point is a continuous process system that allows a specific sheet glass 10 to perform a process step by step through the rotation of the turntable 50 by allowing different types and degrees of processing to perform different processes.

And, as shown in Figure 3, the thin glass 10 is conveyed through the conveyor is made of a pair of three are conveyed to the conveyor, the conveyor is stopped when a certain distance is transferred through the PLC control. In order to determine the correct position, the stopper at the bottom of the conveyor is raised when the thin glass 10 approaches, and each of the thin glass 10 is stopped. At this time, the rise is caused by the cylinder moving up and down (not shown).

In addition, due to the stopper, the polishing jig module 200 is formed to be exactly horizontal, and the stopper is lowered again when the conveyor stops operating. Due to the cylinder moving up and down on the stopped thin glass 10, the suction pad is lowered and the vacuum pump is operated to suck the thin glass 10. The structure of the adsorption pad module includes a cylinder for moving the adsorption pad up and down, a rotating cylinder for making a position such as the polishing jig module 200, a rotating cylinder for positioning when discharging, and a polishing jig module 200 for thin glass 10. Consists of a cylinder for transporting.

When the adsorbed sheet glass 10 rises, the positions of the respective polishing jig modules 200 are different, so that the adsorption pad is rotated by using a cylinder. In this case, the rotation angle is about 20 degrees. When the loading is completed, the conveying apparatus 400 for linear movement moves to the top of the polishing jig module 200, and the thin glass 10 is placed on the polishing jig module 200 while the cylinder for vertical movement is lowered again. When the seat is seated and the major stops at the suction pad, it rises again and the linear motion cylinder returns to its original position. At this time, the adsorption pad module is located at the center of the thin glass 10 at the top of the thin glass 10.

Polishing jig module 200 is to suck the transferred thin glass 10 and the turntable 50 is rotated in the next process. At this time, the transfer device 400 is in the form of a round turntable 50, the entire table is to be rotated, and a plurality of polishing jig module 200 is installed thereon. The turntable 50 is comprised in order of seating, positioning, roughing, medium cutting, finishing, and chamfering. After the process, rotate to the next process at an angle of 60 degrees. Rotation of the turntable 50 rotates the turntable 50 at a constant speed since the gear 19 which is fixed to the turntable 50 and the motor 20 for driving the gear are mounted on the lower surface.

As described above, when the polishing process system 300 according to the present invention is provided, the sheet glass 10 automatically supplied through the transfer apparatus 400 is automatically supplied and mounted inside the chamfering and chamfering modules X and Y. Through the XYZ stage 108, which can adjust the angle, Z, angle and chamfering of the thin glass 10 can be simultaneously polished at an exact center position and at a right angle, and then automatically taken out by the feeder 400. By doing so, there is an effect that each polishing surface of the thin glass 10 can be quickly produced in a more precise and constant form,

In addition, the polished surface is not only precise, but no chipping occurs, yield improvement and high-quality display window thin glass 10 can be obtained. Therefore, it does not generate stress stress and fine cracks during polishing, which has the effect of improving quality during reinforcement.

While the invention has been shown and described in connection with specific embodiments thereof, it is well known in the art that various modifications and changes can be made without departing from the spirit and scope of the invention as indicated by the claims. Anyone who owns it can easily find out.

10: sheet glass, 50: turntable, 60: motor, 65: cogs,
100: grinding apparatus, 104: grinding wheel, 105: grinding wheel power lock, 106: air motor,
108: XYZ stage 110: imitation wheel, 115: jig,
200: abrasive jig module, 211: mimic cam, 212: power lock, 213: housing, 214: gear,
300: polishing process system, 400: feeder, 500: loading part

Claims (11)

delete delete delete A polishing apparatus portion rotatably arranged in a plurality of polishing apparatuses for processing thin glass;
A sheet glass support unit in which a polishing jig module for seating the sheet glass to be processed is arranged in a plurality in a circle corresponding to the polishing apparatus;
It includes a drive unit for allowing the thin glass support to be rotated about the circular central axis,
The polishing jig module is capable of adjusting the vertical position of the thin glass, the thin glass polishing processing system, characterized in that for adjusting the contact position of the grinding wheel and the thin glass of the polishing apparatus portion by rotating the thin glass.
The method of claim 4, wherein
The polishing apparatus includes: a grinding wheel for grinding a fixed sheet glass; A motor driving part fixedly connected to a central axis of the grinding wheel to rotate the grinding wheel; An XYZ stage supporting the motor driver and allowing the motor driver to move in the XYZ direction; And an imitation wheel that is fixedly spaced apart from the lower portion by a predetermined distance from the grinding wheel and induces movement of the grinding wheel to be processed in the shape to be processed while rotating in contact with the imitation cam of a shape to be processed. Sheet glass polishing process system.
The method of claim 5,
The motor drive unit and the air motor,
Laminated glass polishing process system comprising a jig for mounting the air motor.
delete The method of claim 5,
And a conveying unit for leaving the plurality of laminated glass to be processed, and a conveying device which is shipped from the loading unit and transfers the at least one thin glass to the polishing apparatus.
The method of claim 5,
The polishing jig module includes a support for supporting the thin glass, an imitation cam having a shape in which the thin glass is to be polished, a grinding wheel power lock and a housing for fixing the grinding wheel, and a thin glass polishing process. system.
10. The method of claim 9,
The support is made of resin (RESIN), thin glass polishing process system, characterized in that a plurality of through-holes which can be vacuum-sucked at a predetermined interval to adsorb the thin glass is formed.
10. The method of claim 9,
And the mimic wheel is in contact with the mimic cam and moves according to the shape of the mimic cam.

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