Light guide plate polishing device

Abstract

The utility model discloses a light guide plate polishing device which comprises a working table, the working table is round, the top end of the working table is provided with a rotatable rotary positioning disc, and the edge of the top end of the rotary positioning disc is provided with four annular positioning clamping mechanisms which are distributed at equal intervals and used for positioning and clamping a light guide plate. The outer diameter of the rotary positioning disc is smaller than that of the workbench; a support is arranged on the edge of the top end of the workbench. According to the utility model, the first light guide plate is detached from the first positioning and clamping mechanism and replaced with a new light guide plate for fixing and clamping, and meanwhile, the light guide plate on the second positioning and clamping mechanism and the light guide plate on the fourth positioning and clamping mechanism are polished and ground; and the light guide plate on the third positioning and clamping mechanism continues to be fixedly clamped after being replaced by 90 degrees, one process is completed, the polishing plate can be fixedly clamped and polished continuously, polishing is carried out while fixed clamping is carried out, and the polishing and grinding efficiency of the light guide plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of light guide plate processing, in particular to a light guide plate polishing device. Background Art

[0002] The light guide plate is made of optical-grade acrylic / PC sheet, and then a high-tech material with extremely high refractive index and no light absorption is used. The light guide points are printed on the bottom of the optical-grade acrylic sheet using laser engraving, V-shaped cross grid engraving, and UV screen printing technology. In the processing flow of the light guide plate, polishing equipment is required for processing. First, the light guide plate material to be ground and polished is placed on the grinding disc, which rotates counterclockwise. The correction wheel drives the light guide plate material to rotate, and gravity pressurizes the light guide plate material. The light guide plate material and the grinding disc rotate relative to each other to achieve the purpose of grinding and polishing.

[0003] When polishing a light guide plate, the polishing device currently mostly fixes and clamps two sides of the light guide plate, and then polishes the other two sides of the light guide plate. After polishing and grinding, it needs to be disassembled and changed in direction, and then positioned and clamped, and then polished and grinded the remaining two sides, which affects the efficiency of polishing and grinding the light guide plate. Utility Model Content

[0004] In order to solve the defects in the prior art, the utility model provides a light guide plate polishing device.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a light guide plate polishing device, comprising a workbench, wherein the workbench is set to be circular, a rotatable rotating positioning disk is arranged at the top end of the workbench, four positioning and clamping mechanisms for positioning and clamping the light guide plate in an annular shape and distributed equidistantly are arranged at the top edge of the rotating positioning disk, and the outer diameter of the rotating positioning disk is smaller than the outer diameter of the workbench; a bracket is arranged at the top edge of the workbench, and two polishing wheels are arranged on the inner walls at both ends of the bracket.

[0007] As a preferred technical solution of the utility model, the top wall of the bracket is provided with two first bidirectional linear guides facing the center of the rotating positioning disk, and two parallel linear guides are connected to the two sliders of the first bidirectional linear guide, and the linear guides are arranged perpendicular to the first bidirectional linear guide.

[0008] As a preferred technical solution of the utility model, a mounting plate vertically downward is provided on the slider of the linear guide rail, the polishing wheel is mounted on the mounting plate via a rotating shaft, and a reduction motor for driving the polishing wheel to rotate is mounted on the mounting plate.

[0009] As a preferred technical solution of the utility model, a stepping motor for driving the rotary positioning disk to rotate is installed on the workbench.

[0010] As a preferred technical solution of the utility model, the positioning clamping mechanism includes two support plates vertically arranged on the rotating positioning disk, the top ends of the support plates are provided with a horizontal plate, and the top ends of the horizontal plates are provided with a second bidirectional linear guide rail.

[0011] As a preferred technical solution of the utility model, two sliders of the second bidirectional linear guide rail are provided with V-shaped positioning clamps, and one side of the positioning clamp is arranged horizontally.

[0012] As a preferred technical solution of the utility model, the bracket includes a U-shaped support frame arranged at the edge of the workbench and located above the rotating positioning plate, and the first bidirectional linear guide rail is installed on the inner wall of the support frame.

[0013] As a preferred technical solution of the utility model, a PLC controller is installed on the outer wall of the support frame.

[0014] The beneficial effects of the utility model are:

[0015] 1. This light guide plate polishing device, when polishing the light guide plate, fixes and clamps the light guide plate to the first positioning and clamping mechanism provided on the rotating positioning disk; the rotating positioning disk rotates 90 degrees to transport the light guide plate between the two polishing wheels of the bracket, and the two polishing wheels work simultaneously to polish and grind the two side walls of the light guide plate. While polishing and grinding, the light guide plate is fixed and clamped on the second positioning and clamping mechanism. After polishing and grinding, the rotating positioning disk rotates 90 degrees in the same direction again, and then fixes and clamps the light guide plate on the next positioning and clamping mechanism, and the light guide plate on the first positioning and clamping mechanism is changed by 90 degrees and then continued to be fixed and clamped. At the same time, the light guide plate on the second positioning and clamping mechanism is performing polishing and grinding. After the polishing and grinding of the second light guide plate is completed; the rotating positioning disk rotates 90 degrees in the same direction again, and the light guide plate on the first positioning and clamping mechanism is fixed and clamped. The light plate is polished and ground on the other two sides, the light guide plate on the second positioning and clamping mechanism is changed 90 degrees and then continued to be fixed and clamped, the light guide plate on the third positioning and clamping mechanism is polished and ground on both side walls, the fourth light guide plate is fixedly clamped to the fourth positioning and clamping mechanism, after polishing and grinding, the rotating positioning plate is rotated another 90 degrees, the first light guide plate is removed from the first positioning and clamping mechanism and replaced with a new light guide plate for fixed clamping, and at the same time, the light guide plates on the second positioning and clamping mechanism and the fourth positioning and clamping mechanism are polished and ground, the light guide plate on the third positioning and clamping mechanism is changed 90 degrees and then continued to be fixed and clamped, completing a process, the polishing plate can be fixedly clamped and polished continuously, and polishing and grinding are performed while fixed and clamped, thereby improving the efficiency of polishing and grinding of the light guide plate.

[0016] 2. This type of light guide plate polishing device, when fixing and clamping the light guide plate, places the light guide plate on a horizontal plane on two V-shaped positioning clamps, the two positioning clamps support the light guide plate, and the two sliders of the second bidirectional linear guide rail respectively drive the two positioning clamps to approach each other, thereby clamping the opposite sides of the light guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of a light guide plate polishing device of the utility model;

[0019] Figure 2 The utility model is a light guide plate polishing device Figure 1 Schematic diagram of the structure at A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of a positioning and clamping mechanism of a light guide plate polishing device of the utility model;

[0021] Figure 4 The utility model is a cross-sectional view of the connection structure of a workbench and a rotary positioning disk of a light guide plate polishing device.

[0022] In the figure: 1. workbench; 2. rotating positioning plate; 3. positioning clamping mechanism; 4. bracket; 5. polishing wheel; 6. first bidirectional linear guide; 7. linear guide; 8. mounting plate; 9. reduction motor; 10. stepping motor; 11. support plate; 12. horizontal plate; 13. second bidirectional linear guide; 14. positioning clamping plate; 15. support frame; 16. PLC controller. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the utility model is a light guide plate polishing device, comprising a workbench 1, which is set to be circular, and a rotatable rotating positioning disk 2 is provided at the top of the workbench 1, and four positioning and clamping mechanisms 3 for positioning and clamping the light guide plate are provided at the top edge of the rotating positioning disk 2 in a ring shape and equidistantly distributed, and the outer diameter of the rotating positioning disk 2 is smaller than the outer diameter of the workbench 1; a bracket 4 is provided at the top edge of the workbench 1, and two polishing wheels 5 are provided on the inner walls of both ends of the bracket 4.

[0025] Among them, the top wall of the bracket 4 is provided with two first bidirectional linear guides 6 facing the center of the rotating positioning disk 2, and two sliders of the first bidirectional linear guide 6 are connected to two mutually parallel linear guides 7, and the linear guide 7 is arranged perpendicular to the first bidirectional linear guide 6. The slider of the linear guide 7 is provided with a mounting plate 8 pointing vertically downward, and the polishing wheel 5 is installed on the mounting plate 8 via a rotating shaft. A reduction motor 9 for driving the polishing wheel 5 to rotate is installed on the mounting plate 8. The bracket 4 includes a support frame 15 which is U-shaped and arranged at the edge of the workbench 1 and is located above the rotating positioning disk 2. The first bidirectional linear guide 6 is installed on the inner wall of the support frame 15. The reduction motor 9 drives the polishing wheel 5 to work and completes polishing and grinding, and the two sliders of the first bidirectional linear guide 6 drive the two linear guides 7 to move, so that the two linear guides 7 are close to or away from each other to adjust the distance between the polishing wheel 5 and the light guide plate. The slider of the linear guide 7 drives the mounting plate 8 to move, and the position of the polishing wheel 5 to grind the light guide plate can be adjusted.

[0026] A stepper motor 10 driving the rotating positioning disk 2 to rotate is installed on the workbench 1. When the stepper motor 10 is working, the output shaft of the stepper motor 10 drives the rotating positioning disk 2 to rotate, thereby rotating the positioning clamping mechanism 3 on the rotating positioning disk 2.

[0027] Among them, the positioning and clamping mechanism 3 includes two support plates 11 vertically arranged on the rotating positioning disk 2, a horizontal plate 12 is provided at the top of the support plate 11, and a second bidirectional linear guide 13 is provided at the top of the horizontal plate 12. The two sliders of the second bidirectional linear guide 13 are provided with V-shaped positioning clamps 14, and one side of the positioning clamps 14 is horizontally arranged. When the light guide plate is fixed and clamped, the light guide plate is placed on the horizontal plane of the two V-shaped positioning clamps 14, and the two positioning clamps 14 support the light guide plate. The two sliders of the second bidirectional linear guide 137 respectively drive the two positioning clamps 14 to approach each other, thereby clamping the opposite sides of the light guide plate.

[0028] Among them, a PLC controller 16 is installed on the outer wall of the support frame 15, and the PLC controller 16 controls the operation of the stepper motor 10, which stops for a period of time every 90 degrees of rotation; the PLC controller 16 controls the first bidirectional linear guide 6, the linear guide 7 and the second bidirectional linear guide 13 to complete the distance between the polishing wheel 5 and the light guide plate, as well as to complete the clamping and disassembly of the light guide plate.

[0029] During operation, the light guide plate polishing device fixes and clamps the light guide plate to the first positioning and clamping mechanism 3 provided on the rotating positioning disk 2 when polishing the light guide plate; the rotating positioning disk 2 rotates 90 degrees to transport the light guide plate to between the two polishing wheels 5 of the bracket 4, and the two polishing wheels 5 work simultaneously to polish and grind the two side walls of the light guide plate. While polishing and grinding, the light guide plate is fixedly clamped on the second positioning and clamping mechanism 3, and after polishing and grinding, the rotating positioning disk 2 rotates 90 degrees in the same direction again, and then fixes and clamps the light guide plate on the next positioning and clamping mechanism 3, and the light guide plate on the first positioning and clamping mechanism 3 is changed by 90 degrees and then continued to be fixed and clamped, and at the same time, the light guide plate on the second positioning and clamping mechanism 3 is polishing and grinding, and after the polishing and grinding of the second light guide plate is completed; the rotating positioning disk 2 rotates 90 degrees in the same direction again, and the first positioning and clamping mechanism The other two sides of the light guide plate on 3 are polished and ground, the light guide plate on the second positioning and clamping mechanism 3 is changed 90 degrees and then continued to be fixed and clamped, the light guide plate on the third positioning and clamping mechanism 3 is polished and ground on both side walls, the fourth light guide plate is fixedly clamped to the fourth positioning and clamping mechanism 3, and after polishing and grinding, the rotating positioning disk 2 is rotated another 90 degrees, the first light guide plate is removed from the first positioning and clamping mechanism 3 and replaced with a new light guide plate for fixed clamping, and at the same time, the light guide plates on the second positioning and clamping mechanism 3 and the fourth positioning and clamping mechanism 3 are polished and ground, and the light guide plate on the third positioning and clamping mechanism 3 is changed 90 degrees and then continued to be fixed and clamped, completing a process, and the polishing plate can be continuously fixed and clamped and polished, and polishing and grinding are performed while fixed and clamped, thereby improving the polishing and grinding efficiency of the light guide plate.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A light guide plate polishing device, comprising a workbench (1), characterized in that: The workbench (1) is designed to be circular, and a rotatable rotary positioning disk (2) is provided at the top of the workbench (1). Four positioning and clamping mechanisms (3) for positioning and clamping the light guide plate are provided at the top edge of the rotary positioning disk (2) and are equidistantly distributed in a ring shape. The outer diameter of the rotary positioning disk (2) is smaller than the outer diameter of the workbench (1). A bracket (4) is provided at the top edge of the workbench (1), and two polishing wheels (5) are provided on the inner walls of both ends of the bracket (4).

2. A light guide plate polishing device according to claim 1, characterized in that: The top wall of the bracket (4) is provided with two first bidirectional linear guide rails (6) facing the center of the rotating positioning plate (2); two sliders of the first bidirectional linear guide rails (6) are connected to two mutually parallel linear guide rails (7); the linear guide rails (7) are arranged perpendicular to the first bidirectional linear guide rails (6).

3. A light guide plate polishing device according to claim 2, characterized in that: A mounting plate (8) extending vertically downward is provided on the slider of the linear guide rail (7), the polishing wheel (5) is mounted on the mounting plate (8) via a rotating shaft, and a reduction motor (9) for driving the polishing wheel (5) to rotate is mounted on the mounting plate (8).

4. A light guide plate polishing device according to claim 1, characterized in that: A stepping motor (10) for driving the rotary positioning disk (2) to rotate is installed on the workbench (1).

5. The light guide plate polishing device according to claim 1, characterized in that: The positioning clamping mechanism (3) comprises two support plates (11) vertically arranged on the rotating positioning disk (2), a horizontal plate (12) is arranged at the top end of the support plates (11), and a second bidirectional linear guide rail (13) is arranged at the top end of the horizontal plate (12).

6. A light guide plate polishing device according to claim 5, characterized in that: A V-shaped positioning clamp (14) is provided on the two sliding blocks of the second bidirectional linear guide rail (13), and one side of the positioning clamp (14) is arranged horizontally.

7. The light guide plate polishing device according to claim 2, characterized in that: The support (4) comprises a U-shaped support frame (15) arranged at the edge of the workbench (1) and located above the rotary positioning plate (2), and the first bidirectional linear guide rail (6) is installed on the inner wall of the support frame (15).

8. The light guide plate polishing device according to claim 7, characterized in that: A PLC controller (16) is installed on the outer wall of the support frame (15).

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