Polishing device for injection molding light guide plate

Abstract

The utility model discloses an injection molding light guide plate polishing device which comprises a support internally provided with a mounting seat, a movable seat provided with an opening in one side edge and arranged at the top of the mounting seat, belt wheels rotationally installed at the two ends of the interior of the movable seat respectively, and a polishing belt arranged between the two belt wheels in a sleeved mode. A motor used for driving one of the belt wheels to rotate is arranged at the top of the moving seat, a material carrying box with a charging opening formed in the top is arranged on one side of the mounting seat, a sealing box with a suction nozzle is arranged on the side, close to the material carrying box, of the top of the moving seat, and a shell with an inlet hole and an outlet hole is arranged on one side of the sealing box. The inlet holes and the outlet holes are formed in the circumferential direction of the shell at intervals, the inlet holes are communicated with the sealing box through a first hose, and an impeller is arranged in the shell. The injection molding light guide plate polishing device can polish a light guide plate, greatly reduces the situation that dust drifts away in the polishing process, is beneficial to improving the machining environment, and reduces the influence on personnel.

Description

Technical Field

[0001] This utility model relates to the field of polishing equipment technology, and in particular to a polishing device for injection molded light guide plates. Background Technology

[0002] Currently, after the light guide plate is injection molded, it needs to be trimmed, resulting in cut surfaces and sprue cut surfaces. These cut surfaces are rough and therefore require polishing. To achieve a high surface finish and reduce light loss, the polishing process of the light guide plate is very important, as it affects not only the quality of the light guide plate but also the quality of the entire LCD module.

[0003] A search revealed patent CN220575562U, which discloses "a polishing device for a light guide plate surface." The device includes an operating table with a cleaning mechanism. The cleaning mechanism includes a second U-shaped support frame fixedly mounted on the operating table. An L-shaped scraper is slidably mounted between the second U-shaped support frames. A first lead screw is rotatably mounted on one outer surface of the L-shaped scraper. One end of the first lead screw passes through one outer surface of the second U-shaped support frame and is threadedly connected to it. A knob is fixedly connected to one end of the first lead screw. A drainage hole is provided on the side of the operating table near the second U-shaped support frame. A polishing mechanism is provided on the operating table, along with a clamping mechanism for fixing the position of the light guide plate on one side and an adjustment mechanism for moving the light guide plate. This device, through its cleaning mechanism, facilitates the cleaning of debris from the surface of the light guide plate, improving the operator's work efficiency.

[0004] In existing technologies, the surface of the light guide plate is generally polished by a grinding device to make the light guide plate meet the usage requirements. However, during the polishing process, the dust generated during the grinding of the light guide plate is easily dispersed in the air, thus polluting the processing environment and posing a hazard to personnel health. Summary of the Invention

[0005] The purpose of this invention is to provide a polishing device for injection molded light guide plates, which greatly reduces dust dispersion during the polishing process, thus improving the processing environment and reducing the impact on personnel.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a polishing device for injection molded light guide plates, comprising: a bracket with an internal mounting base, a movable seat with an opening on one side on the top of the mounting base, a pulley rotatably mounted at both ends inside the movable seat, and a polishing belt sleeved between the two pulleys, and a motor for driving one of the pulleys to rotate on the top of the movable seat.

[0007] A material container with a loading port on the top is provided on one side of the mounting base. A sealing box with an air suction nozzle is provided on the top side of the movable base near the material container. A shell with an inlet and an outlet is provided on one side of the sealing box. The inlet and outlet are spaced apart along the circumference of the shell, and the inlet and the sealing box are connected by a first flexible tube. An impeller is provided inside the shell.

[0008] The following are further improvements to the above technical solution:

[0009] 1. In the above scheme, a fixed seat with a bevel gear set inside is provided on one side of the outer casing, and another pulley is fixedly connected to the input end of the bevel gear set through a transmission shaft. The output end of this bevel gear set can pass through the fixed seat, the outer casing and the drive shaft of the impeller and be fixedly connected.

[0010] 2. In the above scheme, a collection box is provided below the support, and the collection box is connected to the outlet through a second flexible hose.

[0011] 3. In the above scheme, the collection box is equipped with a material gate.

[0012] 4. In the above scheme, a number of elastic elements are provided between the movable seat and the inner wall of the bracket.

[0013] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0014] This utility model relates to a polishing device for injection-molded light guide plates. A sealed box with an air intake is located on the top of the movable base, near the material box. A housing with an inlet and an outlet is located on one side of this sealed box. The inlet and outlet are spaced apart circumferentially along the housing, and are connected to the sealed box via a first flexible hose. An impeller is installed inside the housing. The impeller's rotation creates negative pressure at the inlet, allowing the polishing belt to simultaneously polish the light guide plate while simultaneously drawing in dust through the air intake, the sealed box, and the first flexible hose, and discharging it through the outlet of the housing. This significantly reduces dust dispersion during polishing, improving the processing environment and minimizing the impact on personnel. Attached Figure Description

[0015] Appendix Figure 1 This is a first-view structural schematic diagram of the polishing device for injection-molded light guide plates of this utility model;

[0016] Appendix Figure 2 Appendix to this utility model Figure 1 Enlarged view of point A;

[0017] Appendix Figure 3 This is a second-view structural schematic diagram of the polishing device for the injection-molded light guide plate of this utility model;

[0018] Appendix Figure 4 This is a partial structural cross-sectional view of the polishing device for injection-molded light guide plates of this utility model;

[0019] Appendix Figure 5 This is a schematic diagram of the outer shell of the injection-molded light guide plate polishing device of this utility model.

[0020] In the attached diagrams: 1. Bracket; 2. Mounting base; 3. Material box; 301. Loading port; 302. Rubber pad; 401. Movable seat; 402. Pulley; 403. Polishing belt; 404. Drive shaft; 405. First hose; 406. Second hose; 407. Collection box; 4071. Material gate; 408. Fixed base; 4081. Bevel gear set; 409. Housing; 4091. Outlet hole; 4092. Inlet hole; 4093. Impeller; 410. Elastic element; 411. Motor; 412. Sealing box; 413. Suction nozzle. Detailed Implementation

[0021] The present patent can be further understood through the specific embodiments given below, but they are not intended to limit the present patent.

[0022] Example 1: A polishing device for injection molded light guide plate, comprising: a bracket 1 with an internal mounting base 2, a movable seat 401 with an opening on one side on the top of the mounting base 2, a pulley 402 rotatably mounted at both ends inside the movable seat 401, and a polishing belt 403 sleeved between the two pulleys 402; and a motor 411 for driving one of the pulleys 402 to rotate is provided on the top of the movable seat 401.

[0023] The light guide plate can be placed in the material box. During operation, the motor is started, which causes the pulley to drive the polishing belt to rotate, thereby polishing one edge of the light guide plate. The moving seat moves on the surface of the mounting seat under the elastic action of the elastic element, so that the polishing belt is tightly attached to one side of the light guide plate.

[0024] A material container 3 with a loading port 301 at the top is provided on one side of the mounting base 2. A sealing box 412 with an air suction nozzle 413 is provided on the top side of the movable base 401 near the material container 3. A housing 409 with an inlet hole 4092 and an outlet hole 4091 is provided on one side of the sealing box 412. The inlet hole 4092 and the outlet hole 4091 are spaced apart along the circumference of the housing 409. The inlet hole 4092 and the sealing box 412 are connected by a first flexible hose 405. An impeller 4093 is provided inside the housing 409.

[0025] The bevel gear set rotates under the drive of the pulley, and the meshing between them drives the impeller to rotate. When the impeller rotates, it creates a negative pressure in the inlet to draw in air. The air is continuously drawn in through the first hose, which then sucks in the waste generated during polishing from the air inlet into the outer casing. The waste is carried by the impeller and rotates more than half a circle before being discharged from the outlet. Finally, the waste is collected in the collection box through the second hose. It can be cleaned by opening the material door later.

[0026] A fixed base 408 containing a bevel gear set 4081 is provided on one side of the aforementioned housing 409. Another pulley 402 is fixedly connected to the input end of the bevel gear set 4081 via a transmission shaft 404. The output end of the bevel gear set 4081 can pass through the fixed base 408, the housing 409 and the drive shaft of the impeller 4093 and be fixedly connected.

[0027] A collection box 407 is provided below the support 1, and the collection box 407 is connected to the outlet 4091 through a second flexible hose 406.

[0028] The aforementioned collection box 407 is equipped with a material gate 4071.

[0029] Several elastic elements 410 are provided between the aforementioned movable seat 401 and the inner wall of the bracket 1.

[0030] Example 2: A polishing device for injection molded light guide plate, comprising: a bracket 1 with an internal mounting base 2, a movable seat 401 with an opening on one side on the top of the mounting base 2, a pulley 402 rotatably mounted at both ends inside the movable seat 401, and a polishing belt 403 sleeved between the two pulleys 402; and a motor 411 for driving one of the pulleys 402 to rotate is provided on the top of the movable seat 401.

[0031] A material container 3 with a loading port 301 at the top is provided on one side of the mounting base 2. A sealing box 412 with an air suction nozzle 413 is provided on the top side of the movable base 401 near the material container 3. A housing 409 with an inlet hole 4092 and an outlet hole 4091 is provided on one side of the sealing box 412. The inlet hole 4092 and the outlet hole 4091 are spaced apart along the circumference of the housing 409. The inlet hole 4092 and the sealing box 412 are connected by a first flexible hose 405. An impeller 4093 is provided inside the housing 409.

[0032] By creating negative pressure at the inlet by the impeller rotation, the dust generated can be drawn in through the suction nozzle, sealing box and first hose while the polishing belt polishes the light guide plate, and discharged through the outlet of the outer shell. This greatly reduces the dust dispersion during the polishing process, which helps to improve the processing environment and reduce the impact on personnel.

[0033] A fixed base 408 containing a bevel gear set 4081 is provided on one side of the aforementioned housing 409. Another pulley 402 is fixedly connected to the input end of the bevel gear set 4081 via a transmission shaft 404. The output end of the bevel gear set 4081 can pass through the fixed base 408, the housing 409 and the drive shaft of the impeller 4093 and be fixedly connected.

[0034] A collection box 407 is provided below the support 1, and the collection box 407 is connected to the outlet 4091 through a second flexible hose 406.

[0035] The aforementioned collection box 407 is equipped with a material gate 4071.

[0036] Several elastic elements 410 are provided between the aforementioned movable seat 401 and the inner wall of the bracket 1.

[0037] The aforementioned elastic elements 410 are evenly distributed.

[0038] A rubber pad 302 is provided on the circumferential inner wall of the aforementioned loading port 301.

[0039] The working principle is as follows:

[0040] When in use, the light guide plate can be placed through the material box. During operation, the motor is started, which causes the pulley to drive the polishing belt to rotate, thereby polishing one edge of the light guide plate. The moving seat moves on the surface of the mounting seat under the elastic action of the elastic element, so that the polishing belt fits tightly against one side of the light guide plate.

[0041] The bevel gear set rotates under the drive of the pulley, and the meshing between them drives the impeller to rotate. When the impeller rotates, it creates a negative pressure in the inlet to draw in air. The air is continuously drawn in through the first hose, which then sucks in the waste generated during polishing from the air inlet into the outer casing. The waste is carried by the impeller and rotates more than half a circle before being discharged from the outlet. Finally, the waste is collected in the collection box through the second hose. It can be cleaned by opening the material door later.

[0042] When the above-mentioned injection-molded light guide plate polishing device is used, the impeller rotation creates negative pressure at the inlet hole. While the polishing belt polishes the light guide plate, the generated dust is sucked in through the suction nozzle, sealing box and first hose, and discharged through the outlet hole of the outer shell. This greatly reduces the dust dispersion during the polishing process, which helps to improve the processing environment and reduce the impact on personnel.

[0043] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A polishing device for injection-molded light guide plates, characterized in that: include: A bracket (1) with an internal mounting base (2) is provided. The top of the mounting base (2) is provided with a movable base (401) with an opening on one side. A pulley (402) is rotatably mounted at both ends inside the movable base (401), and a polishing belt (403) is sleeved between the two pulleys (402). A motor (411) for driving one of the pulleys (402) to rotate is provided on the top of the movable base (401). A material container (3) with a loading port (301) is provided on one side of the mounting base (2). A sealing box (412) with a suction nozzle (413) is provided on the side of the top of the movable base (401) near the material container (3). A shell (409) with an inlet (4092) and an outlet (4091) is provided on one side of the sealing box (412). The inlet (4092) and the outlet (4091) are spaced apart along the circumference of the shell (409). The inlet (4092) and the sealing box (412) are connected by a first flexible hose (405). An impeller (4093) is provided inside the shell (409).

2. The polishing device for injection-molded light guide plates according to claim 1, characterized in that: A fixed seat (408) with a bevel gear set (4081) is provided on one side of the housing (409). Another pulley (402) is fixedly connected to the input end of the bevel gear set (4081) through a transmission shaft (404). The output end of the bevel gear set (4081) can pass through the fixed seat (408), the housing (409) and the drive shaft of the impeller (4093) and be fixedly connected.

3. The polishing device for injection-molded light guide plates according to claim 1, characterized in that: A collection box (407) is provided below the support (1), and the collection box (407) is connected to the outlet (4091) through a second flexible hose (406).

4. The polishing device for injection-molded light guide plates according to claim 3, characterized in that: The collection box (407) is equipped with a material gate (4071).

5. The polishing device for injection-molded light guide plates according to claim 1, characterized in that: A plurality of elastic elements (410) are provided between the movable seat (401) and the inner wall of the bracket (1).

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