Polarizer edge grinding device with dust removal function

By combining the blowing and suction pipes, as well as the design of electric slide rails and protective doors in the polarizer edge grinding device, the problem of waste chip sticking is solved, efficient dust removal effect and sealing of the grinding environment are achieved, and the grinding quality is ensured.

CN223172602UActive Publication Date: 2025-08-01GUANYANG OPTOELECTRONICS (DONGGUAN) CO LTD
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Patent Information

Application Number
CN202422452342.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-11
Publication Date
2025-08-01
Estimated Expiration
2034-10-11

AI Technical Summary

Technical Problem

During the polishing process of the existing polarizer edge grinding device, waste chips are easily stuck to the polarizer and the grinding wheel, and it is difficult to thoroughly clean up by just breathing and dust removal, which affects subsequent grinding operations.

Method used

A polarizer edge grinding device with dust removal function is designed, using a T-type blower and a T-type suction pipe combined with a nozzle to remove debris through the blower before grinding. During grinding, the suction pipe is used to suck away debris, and a closed environment is provided through the electric slide rail and protective door to prevent debris from diffusion.

Benefits of technology

It effectively avoids the impact of waste chips on grinding operations, ensures the cleanliness and efficiency of the grinding process, provides a relatively closed grinding environment to prevent debris from floating out.

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Abstract

The utility model relates to the technical field of photoelectric material processing, in particular to a polaroid edge grinding device with a dust removal function, which comprises a support table, a protective cover, a sliding seat, a first servo motor, an adjusting component and a grinding wheel, a sliding base is arranged in each set of sliding grooves in a sliding mode, an adjusting assembly used for adjusting the distance between the two sliding bases is arranged on the protection cover, and first servo motors are installed on the sliding bases. When a polaroid needs to be polished, a second shifting rod pushes a rotating handle on a first guide pipe to rotate, an air pump enables air to pass through a T-shaped air blowing pipe and then to be sprayed out through a spray head, and therefore chippings in a polishing area are blown away before polishing, the phenomenon that polishing is affected by the stuck chippings is avoided, the second shifting rod pushes the rotating handle on the first guide pipe to rotate during polishing, and the polishing effect is improved. And the dust collector sucks away chippings generated during grinding through the spray head, so that the purpose of dust removal is achieved, and the influence of the chippings on the grinding operation is prevented.
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Description

Technical Field

[0001] The utility model relates to the technical field of optoelectronic material processing, in particular to a polarizer edge grinding device with a dust removal function. Background Technique

[0002] A polarizer is a key component of a liquid crystal panel, mainly used to control the light passing through liquid crystal molecules to achieve image display. During the processing of the polarizer, edge grinding is required to enable the polarizer to better adapt to the size requirements of a liquid crystal display (LCD) panel. During the edge grinding process of the polarizer, fine debris and dust will be generated, and the dust and debris will spread to other components and the working environment, easily causing cross-contamination.

[0003] The patent with the authorization announcement number CN216265045U discloses a dust removal device for a polarizer edge grinding machine, including an edge grinding machine structure and a dust removal device. The top of the edge grinding machine structure is provided with a dust removal device, and an auxiliary device is provided on the top of the edge grinding machine structure; this patent proposes to clean the waste chips generated during the grinding process through internal structures such as a first dust suction machine, a second dust suction machine, a first waste box, and a second waste box; however, there are still some problems in the use of this patent. Since some waste chips adhere to the polarizer and the grinding wheel, it is difficult to thoroughly clean the waste chips only by the method of suction dust removal. During the next grinding process, the waste chips are likely to affect the grinding operation.

[0004] Therefore, it is necessary to design a polarizer edge grinding device with a dust removal function to solve the above technical problems. Content of the Utility Model

[0005] In order to overcome the shortcomings that in the existing patent, some waste chips adhere to the polarizer and the grinding wheel, and it is difficult to thoroughly clean the waste chips only by the method of suction dust removal, and during the next grinding process, the waste chips are likely to affect the grinding operation, the utility model provides a polarizer edge grinding device with a dust removal function.

[0006] The technical solution of the utility model is: a polarizer edge grinding device with a dust removal function, which includes a support table, a protective cover, a sliding seat, a first servo motor, an adjusting component, a grinding wheel, an electric slide rail, an electric slider, a mounting plate and a clamping component. A protective cover is installed on the support table. Two groups of sliding grooves are opened on one side of the inner bottom of the protective cover. A sliding seat is slidably arranged in each group of sliding grooves. An adjusting component for adjusting the distance between the two sliding seats is arranged on the protective cover. A first servo motor is installed on the sliding seat, and a grinding wheel is fixedly connected to the output shaft of the first servo motor. Two electric slide rails are installed on the other side of the inner bottom of the protective cover. An electric slider is slidably arranged on the electric slide rail. A mounting plate is jointly installed on the two electric sliders. A clamping component for clamping the polarizer is installed on the mounting plate. It also includes a T-shaped blowing pipe, a T-shaped suction pipe, a first conduit, a second conduit, a fixing plate, an air delivery pipe, a spray head, a three-way pipe, a ball valve, a turning handle, a torsion spring, a first lever and a second lever. The T-shaped blowing pipe and the T-shaped suction pipe respectively penetrate through one side of the protective cover. Both ends of the T-shaped blowing pipe are connected and communicated with the first conduit. Both ends of the T-shaped suction pipe are connected and communicated with the second conduit. The first conduit and the second conduit on the same side of the protective cover are connected and communicated through a three-way pipe. Two fixing plates are fixedly connected to the inner top of the protective cover. An air delivery pipe is installed on the fixing plate. A plurality of spray heads are installed on the air delivery pipe. The air delivery pipe is connected and communicated with the adjacent three-way pipe. Ball valves are installed on both the first conduit and the second conduit. A turning handle is fixedly connected to the valve stem of the ball valve. A torsion spring is connected between the ball valve and the turning handle. A first lever and a second lever are fixedly connected to the mounting plate. When the mounting plate slides, the first lever contacts the turning handle on the second conduit, and the second lever contacts the turning handle on the first conduit.

[0007] Further, the adjusting component includes a sliding frame, a bidirectional screw and a knob. A sliding frame is fixedly connected to the bottom of the sliding seat. A bidirectional screw is threadedly arranged between the two sliding frames. Knobs are fixedly connected to both ends of the bidirectional screw.

[0008] Further, the clamping component includes a second servo motor, a turntable, a connecting plate, a first guiding rod, a clamping disc and a first elastic member. A second servo motor is installed on the mounting plate. A turntable is rotatably arranged on the electric slider. A connecting plate is installed on the output shaft of the second servo motor. Two first guiding rods are slidably arranged on the connecting plate. The two first guiding rods are fixedly connected together at the ends far away from the second servo motor to form a clamping disc. The clamping disc is located above the turntable. Two first elastic members are connected between the clamping disc and the turntable.

[0009] Further, it also includes a second guiding rod, a fixing frame, a second elastic member and a telescopic sleeve. Two groups of second guiding rods are fixedly connected to the protective cover. A fixing frame is slidably arranged on each group of second guiding rods. Two second elastic members are connected between the fixing frame and the protective cover. A telescopic sleeve is connected between the fixing frame and the protective cover. The telescopic sleeve covers the adjacent electric slide rail. The electric slider slides and contacts the fixing frame.

[0010] Furthermore, it further includes a protective door and guide rails. Two guide rails are installed on the protective cover, and a protective door is slidably arranged on the two guide rails together. The protective door slides to close the protective cover.

[0011] Furthermore, it further includes a collection tank. Two collection tanks are embedded and installed at the bottom inside the protective cover.

[0012] The beneficial effects are as follows: 1. When the polarizer needs to be polished, the second lever first pushes the knob on the first conduit to rotate, so that the air pump sprays the gas through the T-shaped blow pipe and then through the nozzle, so as to blow away the debris in the polishing area before polishing, avoiding the influence of the adhered debris on polishing. During polishing, the second lever pushes the knob on the first conduit to rotate, and the vacuum cleaner sucks away the debris generated during polishing through the nozzle, so as to achieve the purpose of dust removal and prevent the waste debris from affecting the polishing operation.

[0013] 2. When the electric slide rail drives the electric slider to move left and right, the telescopic sleeve always covers the electric slide rail during the polishing process, avoiding debris falling on the electric slide rail and preventing the electric slider from being affected when moving on the electric slide rail.

[0014] 3. When polishing the polarizer, the protective door closes the protective cover, thereby providing a relatively closed polarizer polishing environment and preventing debris from floating out during the polishing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structure diagram of the present utility model.

[0016] Figure 2 It is a three-dimensional sectional structure diagram of the protective cover, slide base and polishing wheel of the present utility model.

[0017] Figure 3 It is a three-dimensional sectional structure diagram of the protective cover, sliding frame and bidirectional screw of the present utility model.

[0018] Figure 4 It is a three-dimensional sectional structure diagram of the slide base, first servo motor and polishing wheel of the present utility model.

[0019] Figure 5 It is a three-dimensional structure diagram of the T-shaped blow pipe, T-shaped suction pipe and air delivery pipe of the present utility model.

[0020] Figure 6 It is a three-dimensional structure diagram of the nozzle, three-way pipe and ball valve of the present utility model.

[0021] Figure 7 It is a three-dimensional structure diagram of the electric slider, second servo motor and clamping disc of the present utility model.

[0022] Figure 8Schematic diagram of the three-dimensional structure of the protective cover, electric slide rail and mounting plate of the present utility model.

[0023] Figure 9 For the present utility model Figure 8 Enlarged view of part A in the figure.

[0024] In the attached drawing reference numerals: 1 - support table, 2 - protective cover, 3 - chute, 4 - sliding seat, 5 - first servo motor, 6 - grinding wheel, 7 - sliding frame, 8 - bidirectional screw, 9 - knob, 10 - electric slide rail, 11 - electric slider, 12 - mounting plate, 13 - second servo motor, 14 - turntable, 15 - connecting plate, 16 - first guide rod, 17 - clamping disc, 18 - first elastic member, 19 - T-shaped air blowing pipe, 20 - T-shaped air suction pipe, 21 - first conduit, 22 - second conduit, 23 - fixing plate, 24 - air delivery pipe, 25 - nozzle, 26 - three-way pipe, 27 - ball valve, 28 - turning handle, 29 - torsion spring, 30 - first shift lever, 31 - second shift lever, 32 - second guide rod, 33 - fixing frame, 34 - protective door, 35 - second elasticity, 36 - telescopic sleeve, 37 - guide rail, 38 - collecting groove. Specific embodiments

[0025] The following specifically introduces the present utility model in combination with the attached drawings and specific embodiments.

[0026] Embodiment 1: A polarizer edge grinding device with dust removal function, refer to Figures 1 - 8As shown in the figure, it includes a support platform 1, a protective cover 2, a sliding seat 4, a first servo motor 5, an adjustment component, a grinding wheel 6, an electric slide rail 10, an electric slider 11, a mounting plate 12 and a clamping component. The protective cover 2 is installed on the support platform 1 by means of bolt connection. Two groups of sliding grooves 3 are opened on the left side of the inner bottom of the protective cover 2. The number of each group of sliding grooves 3 is two. The two groups of sliding grooves 3 are distributed front and back on the left side of the inner bottom of the protective cover 2. Each group of sliding grooves 3 is internally provided with a sliding seat 4 in a sliding manner. The protective cover 2 is provided with an adjustment component for adjusting the distance between the two sliding seats 4. The first servo motor 5 is installed on the sliding seat 4 by means of bolt connection. A grinding wheel 6 is fixedly connected to the output shaft of the first servo motor 5 by means of key connection. Two electric slide rails 10 are installed on the right side of the inner bottom of the protective cover 2 by means of bolt connection. An electric slider 11 is slidably arranged on the electric slide rail 10. An mounting plate 12 is jointly installed on the two electric sliders 11. A clamping component for clamping a polarizer is installed on the mounting plate 12. A T-shaped air blowing pipe 19 and a T-shaped air suction pipe 20 respectively penetrate through one side of the protective cover 2. Both ends of the T-shaped air blowing pipe 19 are connected and communicated with a first conduit 21. Both ends of the T-shaped air suction pipe 20 are connected and communicated with a second conduit 22. The first conduit 21 and the second conduit 22 on the same side of the protective cover 2 are connected and communicated through a three-way pipe 26. Two fixing plates 23 are fixedly connected to the inner top of the protective cover 2. An air delivery pipe 24 is installed on the fixing plate 23 by means of bolt connection. Two spray heads 25 are installed on the air delivery pipe 24. The air delivery pipe 24 is connected and communicated with the adjacent three-way pipe 26. Ball valves 27 are installed on both the first conduit 21 and the second conduit 22. A turning handle 28 is fixedly connected to the valve stem of the ball valve 27. A torsion spring 29 is connected between the ball valve 27 and the turning handle 28. A torsion spring 29 is connected between the ball valve 27 and the turning handle 28. The torsion spring 29 is sleeved on the valve stem of the ball valve 27. A first lever 30 and a second lever 31 are fixedly connected to the mounting plate 12 by means of welding. When the mounting plate 12 slides, the first lever 30 contacts the turning handle 28 on the second conduit 22, and the second lever 31 contacts the turning handle 28 on the first conduit 21. Two collecting grooves 38 are embedded in the inner bottom of the protective cover 2. The collecting grooves 38 are located inside the electric slide rail 10. The collecting grooves 38 are used for collecting debris.

[0027] Refer to Figure 3 As shown in the figure, the adjustment component includes a sliding frame 7, a bidirectional screw 8 and a knob 9. The sliding frame 7 is fixedly connected to the bottom of the sliding seat 4 by means of welding. The bidirectional screw 8 is threadedly arranged between the two sliding frames 7. Knobs 9 are fixedly connected to both ends of the bidirectional screw 8 by means of welding.

[0028] Refer to Figure 7As shown, the clamping assembly includes a second servo motor 13, a turntable 14, a connecting plate 15, a first guide rod 16, a clamping disc 17 and a first elastic member 18. The second servo motor 13 is mounted on the mounting plate 12 by means of bolt connection. The turntable 14 is rotatably arranged on the electric slider 11. The connecting plate 15 is mounted on the output shaft of the second servo motor 13 by means of bolt connection. Two first guide rods 16 are slidably arranged on the connecting plate 15. A clamping disc 17 is fixedly connected between the bottoms of the two first guide rods 16 by means of welding. The clamping disc 17 is located above the turntable 14. Two first elastic members 18 are connected between the clamping disc 17 and the turntable 14.

[0029] When the polarizer needs to be polished, initially the ball valve 27 is in a closed state. First, connect the T-shaped suction pipe 20 to the vacuum cleaner, connect the T-shaped blowing pipe 19 to the air pump, move the clamping plate 17 upward. The clamping plate 17 drives the first guide rod 16 to move upward, and the clamping plate 17 squeezes the first elastic member 18 to deform. Then place the polarizer on the turntable 14, and then release the clamping plate 17. The first elastic member 18 returns to its original state and drives the clamping plate 17 and the two first guide rods 16 to slide downward and reset, so that the clamping plate 17 and the turntable 14 cooperate to clamp the polarizer. By starting the second servo motor 13, the second servo motor 13 drives the polarizer to rotate through the connecting plate 15, the first guide rod 16 and the clamping plate 17, so that the polishing angle of the polarizer can be adjusted. After the adjustment is completed, turn off the second servo motor 13. Then start the electric slide rail 10, the air pump and the vacuum cleaner, and then control the electric slide rail 10 to drive the electric slider 11 to move to the left. The electric slider 11 drives the mounting plate 12 and the turntable 14 to move to the left. The mounting plate 12 drives the first lever 30 and the second lever 31 to move to the left. The second lever 31 pushes the handle 28 on the first conduit 21 to rotate. The handle 28 drives the torsion spring 29 to deform. The handle 28 drives the valve stem of the ball valve 27 to rotate. At this time, the first conduit 21 is communicated with the tee 26 and the air delivery pipe 24. The air pump conveys the gas through the T-shaped blowing pipe 19 and the first conduit 21 to the air delivery pipe 24 and then sprays it out through the nozzle 25, so as to blow away the debris in the polishing area before polishing and avoid the adhered debris affecting the polishing. When the second lever 31 is separated from the handle 28 on the first conduit 21, the torsion spring 29 drives the handle 28 and the valve stem of the ball valve 27 to rotate in the reverse direction and reset, so that the first conduit 21 is closed with the tee 26 and the air delivery pipe 24. When the electric slider 11 drives the mounting plate 12 to continue moving to the left, the second lever 31 pushes the handle 28 on the first conduit 21 to rotate. The handle 28 drives the torsion spring 29 to deform. The handle 28 drives the valve stem of the ball valve 27 to rotate. The second conduit 22 is communicated with the tee 26 and the air delivery pipe 24. The vacuum cleaner sucks the debris in the protective cover 2 through the second conduit 22, the tee 26, the air delivery pipe 24 and the nozzle 25. At this time, the polarizer is conveyed between the two polishing wheels 6. First, start the first servo motor 5. The output shaft of the first servo motor 5 drives the polishing wheels 6 to rotate. Then rotate the knob 9. The knob 9 drives the bidirectional screw 8 to rotate. The bidirectional screw 8 drives the sliding seat 4 to rotate in opposite directions through the sliding frame 7, so that the polishing wheels 6 contact the polarizer and polish the polarizer. At the same time, the vacuum cleaner sucks away the debris generated during polishing through the nozzle 25, so as to achieve the purpose of dust removal and prevent the waste chips from affecting the polishing operation. After the polishing is completed, control the electric slide rail 10 to drive the electric slider 11 to move to the right and reset. The first lever 30 is separated from the handle 28 on the second conduit 22. The torsion spring 29 returns to its original state and drives the valve stem of the ball valve 27 to rotate in the reverse direction through the handle 28, and the second conduit 22 is closed with the tee 26 and the air delivery pipe 24.

[0030] Example 2: On the basis of Example 1, refer to Figure 8 and Figure 9 As shown, it further includes a second guide rod 32, a fixing frame 33, a second elastic member 35 and a telescopic sleeve 36. Two groups of second guide rods 32 are fixedly connected to the protective cover 2 by welding. The number of each group of second guide rods 32 is two. The two second guide rods 32 are respectively located on the front and rear sides of the electric slide rail 10. A fixing frame 33 is slidably arranged on each group of second guide rods 32. Two second elastic members 35 are connected between the fixing frame 33 and the protective cover 2. The second elastic members 35 are sleeved on the second guide rods 32. A telescopic sleeve 3� is connected between the fixing frame 33 and the protective cover 2. The telescopic sleeve 36 is made of rubber material and has good ductility. The telescopic sleeve 36 covers the adjacent electric slide rail 10, and the electric slider 11 slides and contacts the fixing frame 33.

[0031] When the electric slide rail 10 drives the electric slider 11 to move leftward, the electric slider 11 squeezes the fixing frame 33 to slide leftward on the second guide rod 32. The fixing frame 33 squeezes the second elastic member 35 to deform. At the same time, the fixing frame 33 squeezes the telescopic sleeve 36 to contract. When the electric slide rail 10 drives the electric slider 11 to move rightward to reset, when the electric slide rail 10 drives the electric slider 11 to move leftward, the second elastic member 35 returns to its original state and drives the fixing frame 33 to slide rightward to reset. The fixing frame 33 pulls the telescopic sleeve 36 to cover the electric slide rail 10, so that the telescopic sleeve 36 always covers the electric slide rail 10 during the grinding process, avoiding debris from falling on the electric slide rail 10 and preventing the electric slider 11 from being affected when moving on the electric slide rail 10.

[0032] Refer to Figure 8 and Figure 9 As shown, it further includes a protective door 34 and a guide rail 37. Two guide rails 37 are installed on the protective cover 2 by bolt connection. A protective door 34 is slidably arranged on the two guide rails 37 together, and the protective door 34 slides to close the protective cover 2.

[0033] When it is necessary to take and place the polarizer, the protective cover 2 is opened by pulling the protective door 34. When grinding the polarizer, the protective door 34 slides in the reverse direction to close the protective cover 2, so as to provide a relatively airtight polarizer grinding environment and prevent debris from floating out during the grinding process.

[0034] 1 As described above, it is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A polarizer edge grinding device with a dust removal function, comprising a support table (1), a protective cover (2), a sliding seat (4), a first servo motor (5), an adjustment assembly, a grinding wheel (6), an electric slide rail (10), an electric slider (11), a mounting plate (12) and a clamping assembly. The support table (1) is provided with the protective cover (2). On one side of the inner bottom of the protective cover (2), two groups of sliding grooves (3) are opened. Each sliding seat (4) is slidably arranged in each group of sliding grooves (3). An adjustment assembly for adjusting the distance between the two sliding seats (4) is arranged on the protective cover (2). The sliding seat (4) is provided with the first servo motor (5). A grinding wheel (6) is fixedly connected to the output shaft of the first servo motor (5). On the other side of the inner bottom of the protective cover (2), two electric slide rails (10) are installed. The electric slider (11) is slidably arranged on the electric slide rail (10). The two electric sliders (11) are jointly provided with the mounting plate (12). A clamping assembly for clamping the polarizer is installed on the mounting plate (12), characterized in that: It also includes a T-shaped blowing pipe (19), a T-shaped suction pipe (20), a first conduit (21), a second conduit (22), a fixing plate (23), an air delivery pipe (24), a spray head (25), a three-way pipe (26), a ball valve (27), a rotary handle (28), a torsion spring (29), a first lever (30) and a second lever (31). The T-shaped blowing pipe (19) and the T-shaped suction pipe (20) respectively penetrate through one side of the protective cover (2). Both ends of the T-shaped blowing pipe (19) are connected and communicated with the first conduit (21). Both ends of the T-shaped suction pipe (20) are connected and communicated with the second conduit (22). The first conduit (21) and the second conduit (22) on the same side of the protective cover (2) are connected and communicated through the three-way pipe (26). Two fixing plates (23) are fixedly connected to the inner top of the protective cover (2). The air delivery pipe (24) is installed on the fixing plate (23). A plurality of spray heads (25) are installed on the air delivery pipe (24). The air delivery pipe (24) is connected and communicated with the adjacent three-way pipe (26). Ball valves (27) are installed on both the first conduit (21) and the second conduit (22). A rotary handle (28) is fixedly connected to the valve stem of the ball valve (27). A torsion spring (29) is connected between the ball valve (27) and the rotary handle (28). The first lever (30) and the second lever (31) are fixedly connected to the mounting plate (12). When the mounting plate (12) slides, the first lever (30) contacts the rotary handle (28) on the second conduit (22), and the second lever (31) contacts the rotary handle (28) on the first conduit (21).

2. The edge grinding device for a polarizer with a dust removal function according to claim 1, wherein: The adjusting assembly includes a sliding frame (7), a bidirectional screw (8) and a knob (9). The sliding frame (7) is fixedly connected to the bottom of the sliding seat (4). The bidirectional screw (8) is threadedly arranged between the two sliding frames (7). Knobs (9) are fixedly connected to both ends of the bidirectional screw (8).

3. The edge grinding device for a polarizer with a dust removal function according to claim 2, wherein: The clamping assembly includes a second servo motor (13), a turntable (14), a connecting plate (15), a first guide rod (16), a clamping disc (17) and a first elastic member (18). The second servo motor (13) is installed on the mounting plate (12). The turntable (14) is rotatably arranged on the electric slider (11). The connecting plate (15) is installed on the output shaft of the second servo motor (13). Two first guide rods (16) are slidably arranged on the connecting plate (15). The two first guide rods (16) are fixedly connected together at the ends far away from the second servo motor (13) to form the clamping disc (17). The clamping disc (17) is located above the turntable (14). Two first elastic members (18) are connected between the clamping disc (17) and the turntable (14).

4. The edge grinding device for polarizer with dust removal function according to claim 3, characterized in that: It further includes a second guide rod (32), a fixing bracket (33), a second elastic member (35) and a telescopic sleeve (36). Two groups of second guide rods (32) are fixedly connected to the protective cover (2). A fixing bracket (33) is slidably arranged on each of the second guide rods (32). Two second elastic members (35) are connected between the fixing bracket (33) and the protective cover (2). A telescopic sleeve (36) is connected between the fixing bracket (33) and the protective cover (2). The telescopic sleeve (36) covers the adjacent electric slide rails (10). The electric slider (11) slides and contacts the fixing bracket (33).

5. The edge grinding device for polarizer with dust removal function according to claim 4, wherein: It further includes a protective door (34) and a guide rail (37). Two guide rails (37) are installed on the protective cover (2). The protective door (34) is slidably arranged on the two guide rails (37) together. The protective door (34) slides to close the protective cover (2).

6. The polarizer edge grinding device with a dust removal function according to claim 5, characterized in that: It further includes a collection trough (38). Two collection troughs (38) are embedded and installed at the inner bottom of the protective cover (2).

Citation Information

Patent Citations

  • Dust removal device for polaroid edge grinding machine

    CN216265045U