Light guide plate polishing apparatus

Abstract

The application discloses a light guide plate polishing processing device, the bottom of the rotating disc is provided with an arc-shaped guide surface connecting the inner walls of two adjacent strip-shaped sliding grooves, a guide rod is rotatably installed on one side of the rotating disc, the guide rod is provided with a sliding rod inserted into the strip-shaped sliding groove and the arc-shaped guide groove, a material cavity with a feeding port on the top is arranged at one end of the machine body away from the workbench, a discharging port is formed in the bottom of the side wall of the material cavity, a conveying belt is arranged between the two supporting plates, a plurality of elastic members are arranged between the baffle and the accommodating groove, a plurality of supporting blocks capable of lifting the baffle are arranged along the length direction of the conveying belt. The light guide plate polishing processing device realizes automatic and orderly feeding of the light guide plate, greatly reduces the labor intensity of personnel, realizes automatic flow and transfer of the light guide plate between different stations, reduces the occurrence of material vacancy, improves the continuity of the processing process, and is favorable for improving the overall processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of light guide plate processing technology, and in particular to a light guide plate polishing processing apparatus. Background Technology

[0002] During the processing of light guide plates, they need to be polished according to production requirements. In the current production process, the light guide plates need to be transported from other processes, and then positioned by a positioning device. After the light guide plates are positioned, they are then polished. Before polishing, the polishing device needs to wait for the light guide plates to arrive and for them to be positioned.

[0003] A search revealed patent CN208826301U, which discloses "A High-Efficiency Polishing Device for Light Guide Plates." This device includes a polishing assembly, a transfer assembly, a transport assembly, and a gantry frame. Both the transfer assembly and the polishing assembly are mounted on the gantry frame, which spans above the transport assembly. The transport assembly comprises a first transport assembly, a second transport assembly, and a third transport assembly. The transfer assembly picks up and places the light guide plate onto either the second or third transport assembly. Both the second and third transport assemblies are used for transporting the light guide plate between the transfer assembly and the polishing assembly. This invention eliminates the waiting time for polishing the light guide plate, effectively improving production efficiency and avoiding frequent start-ups and shutdowns of the polisher, thus extending its lifespan. The device can simultaneously process three light guide plates, significantly improving production efficiency.

[0004] In existing technologies, light guide plates can be transferred between different workstations using transport components. However, during processing, transfer components are needed to move materials between transport components, resulting in poor continuity of the processing. Furthermore, existing technologies generally require manual placement of light guide plates one by one onto transport components or conveyor belts for loading. Manual operation is slow, and personnel are prone to errors after working for extended periods, leading to missing light guide plates and gaps on the transport components. This requires additional time for downtime correction, resulting in poor production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a light guide plate polishing processing device. This device not only realizes the automatic and orderly feeding of light guide plates, greatly reducing the labor intensity of personnel, but also enables the automatic sequential transfer of light guide plates between different workstations, and reduces the occurrence of material shortages, thereby improving the continuity of the processing process and improving the overall processing efficiency.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a light guide plate polishing processing device, comprising: a worktable, a first station and a second station arranged sequentially along the circumference of the worktable, a polishing mechanism for processing the light guide plate being arranged on the second station downstream of the first station, a turntable having a plurality of connecting rods on its circumferential sidewall being rotatably mounted at the center of the worktable, and a material box being installed at the end of the connecting rod away from the turntable, a strip groove being provided at the bottom of the connecting rod along its length, an arc-shaped guide surface being provided at the bottom of the turntable connecting rod to connect the inner walls of two adjacent strip grooves, and a guide rod being rotatably mounted on one side of the turntable, the guide rod having a sliding rod inserted into the strip groove and the arc-shaped guide groove, and the guide rod rotating one revolution to make the turntable rotate a first angle; The first workstation is equipped with a machine body having a bearing area. At the end of this machine body away from the worktable, there is a material cavity with a feed inlet at the top. A discharge port is opened at the bottom of the side wall of the material cavity, and the bottom inner wall of the material cavity is inclined so that the light guide plate can slide out of the discharge port under the action of gravity. A support plate is symmetrically arranged between the discharge port and the bearing area. A conveyor belt is arranged between the two support plates. A receiving groove with a baffle installed is opened on the top wall of the discharge port, and several elastic elements are arranged between the baffle and the receiving groove. Several support blocks that can lift the baffle are arranged at intervals along the length direction of the conveyor belt.

[0007] The following are further improvements to the above technical solution: 1. In the above scheme, the material container has a number of loading ports arranged in a stepped manner inside, and the inner diameter of the loading ports decreases from top to bottom.

[0008] 2. In the above scheme, a rubber pad is provided on the circumferential inner wall of the loading port.

[0009] 3. In the above scheme, a number of cylinders are set on the workbench between the first station and the second station, and a rubber column is set inside the cylinder. When the turntable rotates, the connecting rod contacts the rubber column to make the material box vibrate.

[0010] 4. In the above scheme, the cylinder is spaced apart between the first station and the second station.

[0011] 5. In the above scheme, the inner wall of the strip groove is provided with an arc-shaped transition surface at one end near the arc-shaped guide surface.

[0012] 6. In the above scheme, the polishing mechanism includes: a fixed frame mounted on a bracket, two pulleys rotatably mounted inside the fixed frame, and a polishing belt sleeved between the two pulleys, and a second motor for driving the pulleys is provided on the fixed frame.

[0013] 7. In the above scheme, a first motor for driving the conveyor belt is installed on the outer wall of one of the support plates.

[0014] 8. In the above scheme, a clearance groove is provided at the end of the support plate near the workbench.

[0015] 9. In the above scheme, a third motor for driving the guide rod to rotate is provided inside the workbench.

[0016] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art: 1. The light guide plate polishing device of the present invention comprises a strip-shaped groove at the bottom of a connecting rod and along its length, an arc-shaped guide surface at the bottom of a turntable connecting the inner walls of two adjacent strip-shaped grooves, a guide rod rotatably mounted on one side of the turntable, a discharge port at the bottom of the side wall of the material cavity, a conveyor belt between two support plates, several elastic elements between the baffle and the receiving groove, and several support blocks spaced along the length of the conveyor belt to lift the baffle. The cyclic rotation of the conveyor belt causes the support blocks on the conveyor belt to lift the baffle, resulting in a regular discharge port. The opening and closing mechanism enables automatic and orderly feeding of the light guide plate, greatly reducing the labor intensity of personnel and avoiding potential operational errors. Furthermore, the guide rod rotates, driving the connecting rod to move, and the guide rod's slide bar slides between the strip groove and the arc-shaped guide surface, allowing the light guide plate to automatically flow sequentially between different workstations. The material box moves at a consistent angle each time, significantly improving the positional accuracy of the material box and reducing material leakage caused by misalignment between the material box and the receiving position. This improves the continuity of the processing and enhances overall processing efficiency.

[0017] 2. The light guide plate polishing processing device of the present invention has a material box with a number of loading ports arranged in a stepped manner inside, and the inner diameter of the loading ports decreases from top to bottom; a number of cylinders are arranged on the worktable between the first station and the second station, and a rubber column is arranged inside the cylinder. When the turntable rotates, the connecting rod contacts the rubber column to make the material box vibrate. The stepped loading ports can accommodate light guide plates of different sizes for loading, and the collision between the connecting rod and the rubber column during the rotation of the connecting rod causes the material box to vibrate, which is beneficial for the light guide plate to match the loading port of the corresponding size and avoids the light guide plate from shifting inside the material box. Attached Figure Description

[0018] Appendix Figure 1 This is a schematic diagram of the overall structure of the light guide plate polishing device of the present invention; Appendix Figure 2 This is a cross-sectional view of the worktable in the light guide plate polishing device of the present invention; Appendix Figure 3 This is a schematic diagram of the fixed frame in the light guide plate polishing device of the present invention; Appendix Figure 4 This is a partial structural schematic diagram of the light guide plate polishing device of the present invention; Appendix Figure 5 This is a schematic diagram of the material carrier box in the light guide plate polishing device of the present invention; Appendix Figure 6 This is a schematic diagram of the structure of the machine body in the light guide plate polishing device of the present invention; Appendix Figure 7 This is a schematic cross-sectional view of the machine body in the light guide plate polishing device of the present invention.

[0019] In the attached diagrams: 1. Workbench; 2. Machine body; 201. Conveyor belt; 2011. First motor; 202. Baffle; 203. Elastic element; 204. Material cavity; 205. Support block; 3. Cylinder; 301. Rubber column; 4. Bracket; 401. Fixing frame; 402. Second motor; 403. Pulley; 404. Polishing belt; 501. Guide rod; 502. Third motor; 503. Connecting shaft; 504. Turntable; 505. Connecting rod; 506. Strip groove; 507. Arc-shaped guide surface; 508. Arc-shaped transition surface; 509. Second connecting shaft; 510. Slide rod; 6. Material box; 601. Loading port; 602. Rubber pad; 7. Discharge port; 8. Support plate; 9. Feed inlet; 10. Receiving groove; 11. Alternating groove. Detailed Implementation

[0020] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0021] Example 1: A light guide plate polishing processing device includes: a worktable 1, with a first station and a second station arranged sequentially along the circumference of the worktable 1, and a polishing mechanism for processing the light guide plate arranged on the second station downstream of the first station. A turntable 504 with a plurality of connecting rods 505 on its circumferential sidewall is rotatably mounted at the center of the worktable 1, and a material box 6 is installed at the end of the connecting rod 505 away from the turntable 504. A strip groove 506 is provided at the bottom of the connecting rod 505 along its length. An arc-shaped guide surface 507 is provided at the bottom of the turntable 504 to connect the inner walls of two adjacent strip grooves 506. A guide rod 501 is rotatably mounted on one side of the turntable 504. The guide rod 501 has a sliding rod 510 inserted into the strip groove 506 and the arc-shaped guide groove 507, and the guide rod 501 rotates one revolution so that the turntable 504 rotates by a first angle. The light guide plate to be processed enters the material box and enters the corresponding layer of the loading port. The rubber pad squeezes the light guide plate in the material box from all sides. The third motor is started to drive the guide rod to rotate. When the guide rod is passively rotated, it will pull the connecting rod to rotate in the same direction through the strip groove. So that the connecting rod rotates 45° for every rotation of the guide rod, thereby realizing the change of the position of the material box and adjusting the light guide plate to be processed to be transported to the bracket at a fixed distance. The first workstation is provided with a machine body 2 having a bearing area. At the end of the machine body 2 away from the worktable 1, there is a material cavity 204 with a feed inlet 9 on the top. The bottom of the side wall of the material cavity 204 is provided with a discharge port 7. The bottom inner wall of the material cavity 204 is inclined so that the light guide plate can slide out from the discharge port 7 under the action of gravity. A support plate 8 is symmetrically arranged between the discharge port 7 and the bearing area. A conveyor belt 201 is arranged between the two support plates 8. The top wall of the discharge port 7 is provided with a receiving groove 10 on which a baffle 202 is slidably installed. Several elastic elements 203 are arranged between the baffle 202 and the receiving groove 10. Several support blocks 205 that can lift the baffle 202 are arranged at intervals along the length direction of the conveyor belt 201. The light guide plates to be processed are stacked and orderly placed in the material cavity. During operation, the first motor is started to drive the conveyor belt for conveying. When the support block moves with the conveyor belt until it reaches the baffle, the baffle is squeezed and moves upward into the receiving groove, compressing the elastic element, thereby opening the material cavity outlet. At this time, the light guide plate to be processed at the bottom of the material cavity will automatically slide out of the material cavity outlet and be conveyed on the conveyor belt until it falls into the material box in front. As the light guide plate and the support block move away from the baffle, the baffle will also reset under the elastic force of the elastic element, restoring the obstruction of the material cavity outlet.

[0022] The aforementioned material container 6 has a number of loading ports 601 arranged in a stepped manner inside, and the inner diameter of the loading ports 601 decreases from top to bottom.

[0023] A rubber pad 602 is provided on the circumferential inner wall of the aforementioned loading port 601; During the transfer of the material box, the connecting rod will contact the rubber pillars on the worktable surface, squeeze the rubber pillars and then move away. The light guide plate inside the material box can use the vibration at this time to help achieve automatic centering and positioning of the light guide plate inside the material box.

[0024] A plurality of cylinders 3 are provided on the workbench 1 between the first and second work stations, and a rubber column 301 is provided inside the cylinder 3. When the turntable 504 rotates, the connecting rod 505 contacts the rubber column 301 to cause the material box 6 to vibrate.

[0025] The aforementioned cylinder 3 is spaced apart between the first and second workstations.

[0026] An arc-shaped transition surface 508 is provided at one end of the inner wall of the strip groove 506 near the arc-shaped guide surface 507.

[0027] The polishing mechanism includes: a fixed frame 401 mounted on the bracket 4, two pulleys 403 rotatably mounted inside the fixed frame 401, and a polishing belt 404 sleeved between the two pulleys 403. A second motor 402 for driving the pulleys 403 is provided on the fixed frame 401.

[0028] A first motor 2011 for driving the conveyor belt 201 is installed on the outer wall of one of the support plates 8.

[0029] A clearance groove 11 is provided at one end of the support plate 8 near the workbench 1.

[0030] The workbench 1 described above is equipped with a third motor 502 for driving the guide rod 501 to rotate.

[0031] The aforementioned turntable 504 is rotatably connected to the worktable 1 via a connecting shaft 503.

[0032] The aforementioned support block 205 is located on the side of the surface of the conveyor belt 201 near the support plate 8.

[0033] The aforementioned connecting rods 505 are evenly distributed along the circumferential sidewall of the turntable 504, and there are four of the aforementioned connecting rods 505. The aforementioned first angle is 45°.

[0034] The top surface of the aforementioned rubber column 301 is an arc surface.

[0035] Example 2: A light guide plate polishing processing device, comprising: a worktable 1, with a first station and a second station arranged sequentially along the circumference of the worktable 1, and a polishing mechanism for processing the light guide plate arranged on the second station downstream of the first station. A turntable 504 with a plurality of connecting rods 505 on its circumferential sidewall is rotatably mounted at the center of the worktable 1, and a material box 6 is installed at the end of the connecting rod 505 away from the turntable 504. A strip groove 506 is provided at the bottom of the connecting rod 505 along its length. An arc-shaped guide surface 507 is provided at the bottom of the turntable 504 to connect the inner walls of two adjacent strip grooves 506. A guide rod 501 is rotatably mounted on one side of the turntable 504. The guide rod 501 has a sliding rod 510 inserted into the strip groove 506 and the arc-shaped guide groove 507, and the guide rod 501 rotates one revolution so that the turntable 504 rotates by a first angle. During rotation, the guide rod drives the connecting rod to move, and the guide rod slides between the strip groove and the arc guide surface, which enables the light guide plate to automatically flow between different workstations. The angle of movement of the material box is consistent each time, which greatly improves the positional accuracy of the material box and reduces the situation of material leakage caused by misalignment between the material box and the receiving position. This improves the continuity of the processing process and helps to improve the overall processing efficiency.

[0036] The first workstation is provided with a machine body 2 having a bearing area. At the end of the machine body 2 away from the worktable 1, there is a material cavity 204 with a feed inlet 9 on the top. The bottom of the side wall of the material cavity 204 is provided with a discharge port 7. The bottom inner wall of the material cavity 204 is inclined so that the light guide plate can slide out from the discharge port 7 under the action of gravity. A support plate 8 is symmetrically arranged between the discharge port 7 and the bearing area. A conveyor belt 201 is arranged between the two support plates 8. The top wall of the discharge port 7 is provided with a receiving groove 10 on which a baffle 202 is slidably installed. Several elastic elements 203 are arranged between the baffle 202 and the receiving groove 10. Several support blocks 205 that can lift the baffle 202 are arranged at intervals along the length direction of the conveyor belt 201. The cyclic rotation of the conveyor belt causes the support blocks on the conveyor belt to lift the baffle, which causes the discharge port to open and close in a regular manner. This achieves automatic and orderly feeding of the light guide plate, greatly reducing the labor intensity of personnel and avoiding situations where personnel are prone to misoperation.

[0037] The aforementioned material container 6 has a number of loading ports 601 arranged in a stepped manner inside, and the inner diameter of the loading ports 601 decreases from top to bottom.

[0038] A rubber pad 602 is provided on the circumferential inner wall of the aforementioned loading port 601.

[0039] A number of cylinders 3 are provided on the workbench 1 between the first and second work stations, and a rubber column 301 is provided inside the cylinder 3. When the turntable 504 rotates, the connecting rod 505 contacts the rubber column 301 to make the material box 6 vibrate. The stepped loading port can accommodate light guide plates of different sizes. Furthermore, the collision between the connecting rod and the rubber column during the rotation of the connecting rod causes the loading box to vibrate, which helps the light guide plate to match the loading port of the corresponding size and avoids the light guide plate shifting inside the loading box.

[0040] The aforementioned cylinder 3 is spaced apart between the first and second workstations.

[0041] An arc-shaped transition surface 508 is provided at one end of the inner wall of the strip groove 506 near the arc-shaped guide surface 507.

[0042] The polishing mechanism includes: a fixed frame 401 mounted on the bracket 4, two pulleys 403 rotatably mounted inside the fixed frame 401, and a polishing belt 404 sleeved between the two pulleys 403. A second motor 402 for driving the pulleys 403 is provided on the fixed frame 401. After the material carrier is transferred to the bracket, the second motor drives the pulley to rotate, so that the polishing belt can polish the edge of the light guide plate.

[0043] A first motor 2011 for driving the conveyor belt 201 is installed on the outer wall of one of the support plates 8.

[0044] A clearance groove 11 is provided at one end of the support plate 8 near the workbench 1.

[0045] The workbench 1 described above is equipped with a third motor 502 for driving the guide rod 501 to rotate.

[0046] When the aforementioned material box 6 is located inside the receiving area, the aforementioned loading port 601 can receive the light guide plate from the conveyor belt 201.

[0047] The guide rod 501 is rotatably connected to the worktable 1 via a second connecting shaft 509, and the second connecting shaft 509 is fixedly connected to the output shaft of the third motor 502. The guide rod 501 is sleeved on the upper outer wall of the second connecting shaft 509, and the lower end of the second connecting shaft 509 is fixedly connected to the output shaft of the third motor 502.

[0048] The working principle is as follows: In use, the light guide plates to be processed are stacked and placed in the material cavity in an orderly manner. During operation, the first motor is started to drive the conveyor belt for conveying. When the support block moves with the conveyor belt until it comes into contact with the baffle, the baffle is squeezed and moves upward into the receiving groove, compressing the elastic element, thereby opening the material cavity outlet. At this time, the light guide plate to be processed at the bottom of the material cavity will automatically slide out of the material cavity outlet and be conveyed on the conveyor belt until it falls into the material box in front. As the light guide plate and the support block move away from the baffle, the baffle will also reset under the elastic force of the elastic element, restoring the blocking of the material cavity outlet. The light guide plate to be processed enters the material box and enters the corresponding layer of the loading port. The rubber pad squeezes the light guide plate in the material box from all sides. The third motor is started to drive the guide rod to rotate. When the guide rod is passively rotated, it will pull the connecting rod to rotate in the same direction through the strip groove. So that the connecting rod rotates 45° for every rotation of the guide rod, thereby realizing the change of the position of the material box and adjusting the light guide plate to be processed to be transported to the support at a fixed distance. Moreover, during the transfer of the material box, the connecting rod will contact the rubber column on the surface of the worktable, squeeze the rubber column and then move away. The light guide plate in the material box can use the vibration at this time to help realize the automatic centering and positioning of the light guide plate in the material box. After the material carrier is transferred to the bracket, the second motor drives the pulley to rotate, so that the polishing belt can polish the edge of the light guide plate.

[0049] When the above-mentioned light guide plate polishing device is used, the conveyor belt rotates in a circular manner, causing the support blocks on the conveyor belt to lift the baffle, so that the discharge port opens and closes in a regular manner, realizing the automatic and orderly feeding of the light guide plate, greatly reducing the labor intensity of personnel and avoiding the situation where personnel are prone to misoperation. Furthermore, the guide rod drives the connecting rod to move during rotation, and the guide rod slides between the strip groove and the arc guide surface, which enables the light guide plate to automatically flow between different workstations. Moreover, the angle of the material box moves consistently each time, which greatly improves the positional accuracy of the material box and reduces the situation of material leakage caused by misalignment between the material box and the receiving position. This improves the continuity of the processing process and helps to improve the overall processing efficiency. Furthermore, its stepped loading port can accommodate light guide plates of different sizes for loading, and the collision between the connecting rod and the rubber column during the rotation of the connecting rod causes the loading box to vibrate, which is beneficial for the light guide plate to match the loading port of the corresponding size and avoids the light guide plate from shifting inside the loading box.

[0050] The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it accordingly. They should not be construed as limiting the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A light guide plate polishing device, comprising: The workbench (1) is characterized in that: a first work station and a second work station are arranged sequentially along the circumference of the workbench (1), and a polishing mechanism for processing light guide plates is provided on the second work station located downstream of the first work station. A turntable (504) with several connecting rods (505) on its circumferential sidewall is rotatably mounted at the center of the workbench (1), and a material box (6) is installed at the end of the connecting rod (505) away from the turntable (504). The material box (6) is located at the bottom of the connecting rod (505) and along its length. A strip groove (506) is provided in the degree direction. The bottom of the turntable (504) is provided with an arc-shaped guide surface (507) that connects the inner walls of two adjacent strip grooves (506). A guide rod (501) is rotatably installed on one side of the turntable (504). This guide rod (501) has a slide rod (510) inserted into the strip groove (506) and the arc-shaped guide surface (507). The guide rod (501) rotates one revolution so that the turntable (504) rotates by a first angle. The first workstation is provided with a machine body (2) having a bearing area. At the end of the machine body (2) away from the worktable (1), there is a material cavity (204) with a feed inlet (9) at the top. A discharge port (7) is opened at the bottom of the side wall of the material cavity (204), and the bottom inner wall of the material cavity (204) is inclined so that the light guide plate can slide out from the discharge port (7) under the action of gravity. A support plate (8) is symmetrically arranged between the discharge port (7) and the bearing area. A conveyor belt (201) is arranged between the two support plates (8). A receiving groove (10) with a baffle (202) slidably installed is opened on the top wall of the discharge port (7), and several elastic elements (203) are arranged between the baffle (202) and the receiving groove (10). The conveyor belt (201) is provided with several support blocks (205) at intervals along its length, which can lift the baffle (202); the material box (6) is provided with several loading ports (601) in a stepped manner inside, and the inner diameter of the loading ports (601) decreases from top to bottom; a rubber pad (602) is provided on the circumferential inner wall of the loading port (601); several cylinders (3) are provided on the workbench (1) between the first station and the second station, and a rubber column (301) is provided inside the cylinder (3). When the turntable (504) rotates, the connecting rod (505) contacts the rubber column (301) to make the material box (6) vibrate; the cylinders (3) between the first station and the second station are spaced apart.

2. The light guide plate polishing device according to claim 1, characterized in that: The inner wall of the strip groove (506) is provided with an arc-shaped transition surface (508) at one end near the arc-shaped guide surface (507).

3. The light guide plate polishing device according to claim 1, characterized in that: The polishing mechanism includes: a fixed frame (401) set on the bracket (4), two pulleys (403) rotatably installed inside the fixed frame (401), and a polishing belt (404) sleeved between the two pulleys (403), and a second motor (402) for driving the pulleys (403) is provided on the fixed frame (401).

4. The light guide plate polishing device according to claim 1, characterized in that: A first motor (2011) for driving the conveyor belt (201) is installed on the outer wall of one of the support plates (8).

5. The light guide plate polishing device according to claim 1, characterized in that: The support plate (8) has a recessed groove (11) at one end near the workbench (1).

6. The light guide plate polishing apparatus according to claim 1, characterized in that: The workbench (1) is equipped with a third motor (502) for driving the guide rod (501) to rotate.

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