A clamping mechanism for polishing polarizing plate

Abstract

This application relates to a clamping mechanism for edge grinding of polarizers, comprising a frame and a processing table fixedly mounted on the frame. The frame is used to fix the polarizer to a grinding device, and the processing table is used to hold the polarizer. Mounting brackets are fixedly mounted on the frame and on both sides of the processing table. Sliding grooves are formed on both mounting brackets along a direction perpendicular to the top wall of the processing table. Multiple sliders are slidably mounted in the sliding grooves of both mounting brackets, and the sliders on the two mounting brackets correspond one-to-one. Each slider is provided with an anti-slip plate, and the anti-slip plate is provided with an anti-slip element to prevent the polarizer from sliding. Two polarizers are placed between two adjacent anti-slip plates on the same mounting bracket. A clamping assembly is provided on the frame to press the polarizer onto the processing table. This application has the advantage that when grinding the edge of the polarizer, the position of the polarizer is less likely to shift, thus eliminating the need for secondary processing of the ground polarizer and greatly improving the grinding efficiency.

Description

Technical Field

[0001] This application relates to the technical field of polarizer processing, and in particular to a clamping mechanism for polarizer edge grinding. Background Technology

[0002] The full name of a polarizer is polarizing film. The imaging of liquid crystal displays (LCDs) depends on polarized light. All liquid crystals have two polarizing films, one in front and one behind, which are closely attached to the liquid crystal glass to form a liquid crystal sheet with a total thickness of about 1mm. If either polarizer is missing, the liquid crystal sheet cannot display an image. 3D glasses use this principle. The reason why polarizing film is called polarizer is because the polarizer of ordinary LCDs facing the eyes is frosted to dissipate surface reflections and scatter light to increase the viewing angle of the LCD.

[0003] After the polarizer is cut, its cutting boundary needs to be polished to ensure the side quality of the polarizer. When polishing a rectangular polarizer, the polarizer polishing machine stacks multiple polarizers together and places them on the polishing equipment, clamps the multiple polarizers together, and then polishes the multiple polarizers together.

[0004] However, the two adjacent polarizers in the middle are fixed only by friction. When the edges of the polarizers are polished, the polarizer in the middle is prone to shifting. Then, the unpolished polarizers need to be screened and reprocessed, resulting in low polishing efficiency. Summary of the Invention

[0005] To address the problems existing in the prior art, this application provides a clamping mechanism for grinding polarizer edges, which prevents the polarizer from shifting position when grinding the edge of the polarizer, thus eliminating the need for secondary processing of the ground polarizer and greatly improving the grinding efficiency of the polarizer.

[0006] This application provides a clamping mechanism for grinding polarizer film, which adopts the following technical solution:

[0007] A clamping mechanism for grinding polarizers includes a frame and a processing table fixedly mounted on the frame. The frame is used to fix the polarizer to a grinding device, and the processing table is used to hold the polarizer. Mounting brackets are fixedly mounted on the frame and on both sides of the processing table. Sliding grooves are formed on both mounting brackets along a direction perpendicular to the top wall of the processing table. Multiple sliders are slidably mounted in the sliding grooves of both mounting brackets, and the sliders on the two mounting brackets correspond one-to-one. Each slider is provided with an anti-slip plate, and the anti-slip plate is provided with an anti-slip element for preventing the polarizer from sliding. Two polarizers are placed between two adjacent anti-slip plates on the same mounting bracket. A clamping assembly is provided on the frame for pressing the polarizer onto the processing table.

[0008] By adopting the above technical solution, polarizers are placed in pairs between two mounting brackets, and the two sides of the polarizers are slid between two anti-slip sheets. The polarizers are then pressed onto the processing table by a clamping assembly, making the polarizers and anti-slip sheets adhere tightly. The anti-slip components prevent relative sliding between the polarizers and anti-slip sheets, thus fixing the polarizers on the processing table. After that, the edges of the polarizers can be polished. During the polishing process, the position of the polarizers is less likely to shift, thus eliminating the need for secondary processing of the polished polarizers and greatly improving the polishing efficiency of the polarizers.

[0009] Optionally, a first elastic element is provided between two adjacent sliders located on the same mounting bracket, the first elastic element being used to drive the two sliders away from each other.

[0010] By adopting the above technical solution, when the polarizer is not pressed, the first elastic element creates a certain gap between each pair of adjacent sliders, which facilitates the placement of the polarizer between the two adjacent anti-slip sheets.

[0011] Optionally, a feeding rack is fixedly installed on the frame, and a platform is slidably installed on the feeding rack along the vertical direction. The platform is used to place the polarizing film to be polished. A first driving component is provided on the feeding rack to drive the platform to slide, and a feeding assembly is provided on the platform to transport the polarizing film between two anti-slip sheets.

[0012] By adopting the above technical solution, the staff only needs to stack the polarizers to be polished and place them on the shelf. When the polarizers need to be placed on the processing table, the first drive unit drives the shelf to slide. The feeding component then transports the two polarizers on the top layer of the shelf to each pair of adjacent anti-slip sheets in sequence. This eliminates the need for staff to manually feed the polarizers, greatly reducing the labor intensity of the staff.

[0013] Optionally, the feeding assembly includes a sliding frame, a second driving member, a push plate, and a third driving member. The sliding frame is slidably mounted on the shelf in a vertical direction. The second driving member is used to drive the sliding frame to slide. The push plate is slidably mounted on the sliding frame in a direction parallel to the top wall of the shelf. The third driving member is used to drive the push plate to slide, and the push plate is used to push the two polarizers on the top layer of the shelf between the two anti-slip sheets.

[0014] By adopting the above technical solution, the sliding frame is driven to slide down by the second driving component, so that the projection of the two polarizers on the top layer of the shelf in the horizontal direction is located on the push plate. After the shelf is raised and lowered to a certain position, the push plate is driven to slide by the third driving component, so that the two polarizers on the top layer of the shelf can be pushed between the two anti-slip plates.

[0015] Optionally, the anti-slip component includes an anti-slip pad, the surface of the anti-slip sheet is smooth, the anti-slip sheet has a cavity inside, both ends of the anti-slip sheet have openings communicating with the cavity, the anti-slip pad is slidably disposed in both openings, an airbag is disposed in the cavity, the airbag is connected to an air inlet pipe, an air pump is fixedly disposed on the frame, and the air outlet of the air pump is connected to the air inlet pipe.

[0016] By adopting the above technical solution, the surface of the anti-slip pad is made smooth, which makes it easy to push the polarizer between two adjacent anti-slip pads. When the anti-slip pad is pressed and fixed, air is delivered to the air inlet pipe by an air pump. The airbag expands and pushes the anti-slip pad out of the opening and fits with the polarizer, thereby preventing the polarizer from sliding.

[0017] Optionally, the anti-slip plate is slidably disposed on the slider in a direction close to or away from the mounting bracket, and a support rod is slidably disposed on the slider along the sliding direction of the anti-slip plate. The anti-slip plate is fixedly connected to the support rod, and the mounting bracket is provided with a drive assembly for driving multiple support rods to slide simultaneously.

[0018] By adopting the above technical solution, after the polarizer is polished, the support rod is driven to slide by the drive component, and the anti-slip sheet is driven to slide towards the mounting bracket. After the anti-slip sheet is separated from the polarizer, the polarizer is stacked on the processing table under the action of gravity, which makes it easy to remove the polished polarizer.

[0019] Optionally, the driving assembly includes a second elastic element, a top plate, and a fourth driving element. Each slider is provided with a second elastic element, which is used to drive the support rod to slide and move the anti-slip plate closer to the mounting frame. The top plate is slidably disposed on the mounting frame along the length direction of the support rod. The fourth driving element is used to drive the top plate to slide, and the top plate is used to abut against the end of the support rod away from the anti-slip plate.

[0020] By adopting the above technical solution, the top plate is driven to slide by the fourth driving component, the top plate pushes the support rod to slide, and drives the anti-slip plate to slide away from the mounting frame. When it is necessary for the anti-slip plate to separate from the polarizer, the top plate slides away from the slider, and the support rod drives the anti-slip plate to slide closer to the mounting frame under the elastic force of the second elastic component, thereby separating the anti-slip plate from the polarizer.

[0021] Optionally, a positioning plate is slidably provided on the side of both mounting frames away from the feeding frame. The positioning plate is vertical in length, and a fifth driving member is provided on the mounting frame to drive the positioning plate to slide.

[0022] By adopting the above technical solution, when the polarizer is pushed between the anti-slip plates, the positioning plate is driven to slide by the fifth driving component, which limits the advancing distance of the polarizer, thereby facilitating the positioning of the polarizer and further improving the grinding accuracy.

[0023] Optionally, a discharge rack is also fixedly installed on the frame and on the side of the mounting frame away from the feeding rack, and a feeding component for conveying the polished polarizer to the discharge rack is provided on the processing table.

[0024] By adopting the above technical solution, after the polarizer is polished, the polished polarizer on the processing table is transported to the output rack by the feeding component. Then, the polarizer on the loading rack can be transported to the processing table for processing, thereby improving processing efficiency.

[0025] Optionally, the feeding assembly includes a mounting block, a sixth driving component, a feeding roller, and a driving source. The top wall of the processing table is provided with multiple mounting slots, and the mounting block is slidably disposed in each mounting slot. The sixth driving component is used to drive the multiple mounting blocks to slide. The feeding roller is rotatably disposed on each mounting block. The axial directions of the feeding rollers are parallel. The driving source is used to drive the feeding roller on the mounting block near the discharge rack to rotate.

[0026] By adopting the above technical solution, the mounting block is driven to slide upward by the sixth driving component, so that the feeding roller extends out of the mounting groove. After the anti-slip sheet separates from the polarizer, the polarizer falls onto the feeding roller under gravity. The feeding roller on the mounting block near the discharge rack is driven to rotate by the driving source, thereby driving the polarizer to slide on the processing table and enter the discharge rack.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Place the polarizers in pairs between the two mounting brackets, and slide the two sides of the polarizers between the two anti-slip plates respectively. Press the polarizers onto the processing table using the clamping assembly, so that the polarizers and anti-slip plates are in close contact. The anti-slip components prevent relative sliding between the polarizers and anti-slip plates, thus fixing the polarizers on the processing table. Then, the edges of the polarizers can be polished. When polishing the polarizers, the position of the polarizers is not easily displaced, so there is no need for secondary processing of the polished polarizers, which greatly improves the polishing efficiency of the polarizers.

[0029] 2. The staff only needs to stack the polarizers to be polished and place them on the shelf. When the polarizers need to be placed on the processing table, the first drive unit drives the shelf to slide. The feeding component then feeds the two polarizers on the top layer of the shelf to each pair of adjacent anti-slip sheets in sequence. This eliminates the need for manual feeding by the staff and greatly reduces the labor intensity of the staff.

[0030] 3. After the polarizer is polished, the sixth drive unit drives the mounting block to slide upward, causing the feeding roller to extend out of the mounting groove. After the anti-slip sheet separates from the polarizer, the polarizer falls onto the feeding roller under gravity. The drive source drives the feeding roller on the mounting block near the discharge rack to rotate, thereby driving the polarizer to slide on the processing table and enter the discharge rack. Then, the polarizer on the loading rack can continue to be transported to the processing table for processing, improving processing efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0032] Figure 2 This is a partial structural schematic diagram of an embodiment of this application, mainly used to illustrate the structural schematic diagram of the mounting bracket;

[0033] Figure 3 yes Figure 2 Enlarged view of section A;

[0034] Figure 4 yes Figure 2 Enlarged view of section B;

[0035] Figure 5 This is a partial structural schematic diagram of an embodiment of this application, mainly used to illustrate the structural schematic diagram of the feeding rack;

[0036] Figure 6 This is a schematic diagram of the overall structure of an embodiment of this application;

[0037] Figure 7 This is a partial structural schematic diagram of an embodiment of this application, mainly used to illustrate the structural schematic diagram of the processing table;

[0038] Figure 8 yes Figure 7 A magnified view of section C.

[0039] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Processing table; 111. Guide plate; 12. Mounting frame; 121. Second elastic element; 122. Top plate; 123. Fourth driving element; 124. Positioning plate; 125. Fifth driving element; 13. Slider; 131. Limiting block; 132. First elastic element; 133. Anti-slip plate; 1331. Anti-slip mat; 1332. Airbag; 1333. Air inlet pipe; 134. Support rod; 1341 14. Abutment block; 15. Air pump; 2. Support frame; 2. Feeding rack; 21. Placement platform; 22. First driving component; 3. Discharge rack; 4. Pressing assembly; 41. Pressure plate; 42. Hydraulic cylinder; 5. Feeding assembly; 51. Sliding frame; 52. Second driving component; 53. Push plate; 54. Third driving component; 6. Feeding assembly; 61. Mounting block; 611. Connecting rod; 62. Sixth driving component; 63. Feeding roller; 64. Drive source. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0041] This application discloses a clamping mechanism for grinding polarizer edges. (Refer to...) Figure 1 The equipment includes a frame 1 fixed to the grinding equipment and a feeding rack 2 and a discharging rack 3 fixedly installed on both sides of the frame 1. A processing table 11 for placing polarizers is fixedly installed on the frame 1. A pressing component 4 for pressing the polarizers onto the processing table 11 is installed on the frame 1. A placement platform 21 is slidably installed on the feeding rack 2 in the vertical direction. A feeding component 5 for conveying the polarizers to the processing table 11 is installed on the placement platform 21. A feeding component 6 for conveying the ground polarizers to the discharging rack 3 is installed on the processing table 11.

[0042] Reference Figure 2 , 3 Mounting brackets 12 are fixedly installed on both sides of the machine frame 1 and the processing table 11. Slide grooves are opened on the two mounting brackets 12 along the direction perpendicular to the top wall of the processing table 11. Multiple sliders 13 are slidably installed in the slide grooves of the two mounting brackets 12, and the sliders 13 on the two mounting brackets 12 correspond one to one. The sliders 13 are long strips, and the length direction of each slider 13 is horizontal and parallel to each other. Limiting blocks 131 are fixedly installed on both sides of each slider 13. Limiting grooves are opened on the side walls of the slide grooves on both sides of the slider 13 along the sliding direction of the slider 13. The limiting blocks 131 on both sides of the slider 13 are slidably installed in the limiting grooves.

[0043] Reference Figure 3 A first elastic element 132 is provided between two adjacent sliders 13 located on the same mounting bracket 12. The elastic element includes a first compression spring. Placement grooves are provided on the upper and lower side walls of the limiting block 131. The two ends of the first compression spring are respectively fixed in the placement grooves of the two adjacent limiting blocks 131.

[0044] Reference Figure 2 , 4 Each slider 13 has a receiving groove on its side wall near the other mounting bracket 12. An anti-slip plate 133 is slidably disposed in the receiving groove of each slider 13 along the direction parallel to the top wall of the processing table 11. The anti-slip plate 133 is parallel to the top wall of the processing table 11. When two adjacent sliders 13 are in contact, the distance between the anti-slip plates 133 on the two adjacent sliders 13 is less than the sum of the thicknesses of the two polarizers. A through hole communicating with the receiving groove is opened at the end of the slider 13 away from the other mounting bracket 12 along the sliding direction of the anti-slip plate 133. A support rod 134 is slidably disposed in each through hole. The support rod 134 is fixedly connected to the anti-slip plate 133. An abutment block 1341 is fixedly disposed at the end of the support rod 134 away from the anti-slip plate 133.

[0045] Reference Figure 4 The mounting bracket 12 is provided with a drive assembly for driving multiple support rods 134 to slide simultaneously. The drive assembly includes a second elastic element 121, a top plate 122 and a fourth drive element 123. The second elastic element 121 includes a second compression spring. Each support rod 134 is fitted with a second compression spring. One end of the second compression spring abuts against the side wall of the slider 13, and the other end of the second compression spring abuts against the abutment block 1341.

[0046] Reference Figure 4 The top plate 122 is slidably mounted on the mounting frame 12 along the length of the support rod 134. The fourth driving component 123 includes a pneumatic cylinder, which is fixedly mounted on the mounting frame 12. The piston rod of the pneumatic cylinder is fixedly connected to the top plate 122. The pneumatic cylinder drives the top plate 122 to slide closer to the slider 13, so that the top plate 122 simultaneously abuts against multiple abutting blocks 1341 and pushes multiple support rods 134 to slide simultaneously, thereby pushing the anti-slip plate 133 to slide away from the slider 13.

[0047] Reference Figure 3 and 4 The surface of the anti-slip sheet 133 is smooth, and the anti-slip sheet 133 is provided with anti-slip components to prevent the polarizer from sliding. The anti-slip components include an anti-slip pad 1331. The anti-slip sheet 133 has a cavity inside, and both the upper and lower ends of the anti-slip sheet 133 have openings that communicate with the cavity. The anti-slip pad 1331 is slidably disposed in both openings. The anti-slip pad 1331 is made of elastic rubber. An airbag 1332 is disposed in the cavity. The airbag 1332 is connected to an air inlet pipe 1333, which is a flexible hose.

[0048] Reference Figure 2 An air pump 14 is fixedly installed on the frame 1. The air outlet of the air pump 14 is connected to the air inlet pipe 1333. When the anti-slip sheet 133 is pressed and fixed, the air pump 14 delivers air to the air inlet pipe 1333. The air bag 1332 expands and pushes the anti-slip pad 1331 out of the opening and into contact with the polarizer, thereby preventing the polarizer from sliding.

[0049] Reference Figure 5 The platform 21 is used to place the polarizing film to be polished. The loading rack 2 is provided with a first driving component 22 for driving the platform 21 to slide. The first driving component 22 includes a servo cylinder, which is fixedly mounted on the loading rack 2. The piston rod of the servo cylinder is fixedly connected to the platform 21.

[0050] Reference Figure 5The feeding assembly 5 includes a sliding frame 51, a second driving component 52, a push plate 53, and a third driving component 54. A fixed frame is fixedly installed on the platform 21. The sliding frame 51 is slidably installed on the fixed frame in a vertical direction. The second driving component 52 includes a rodless cylinder, which is fixedly installed on the fixed frame and has a vertical length direction. The piston of the rodless cylinder is fixedly connected to the sliding frame 51. The push plate 53 is slidably installed on the sliding frame 51 along the length direction of the slider 13, and the cross-section of the push plate 53 is L-shaped. The third driving component 54 includes a driving cylinder, which is fixedly installed on the sliding frame 51. The piston rod of the driving cylinder is fixedly connected to the push plate 53.

[0051] The operator simply stacks the polarizers to be ground and places them on the platform 21. When it is necessary to place the polarizers on the processing table 11, a servo cylinder drives the platform 21 to slide, and a rodless cylinder drives the sliding frame 51 to slide down, so that the horizontal projection of the two uppermost polarizers on the platform 21 is located on the push plate 53. After the platform 21 is raised and lowered to a certain position, the gap between the two uppermost polarizers on the platform 21 and the two adjacent anti-slip plates 133 on the same mounting bracket 12 are aligned. The push plate 53 is then driven by the drive cylinder. By sliding plate 53, the two uppermost polarizing films on the shelf 21 can be pushed between the two anti-slip plates 133. Then, by continuing to slide shelf 21 and sliding frame 51, the two uppermost polarizing films on shelf 21 are sequentially transported between each pair of adjacent anti-slip plates 133, thus eliminating the need for manual loading by staff and greatly reducing the labor intensity of staff. It should be noted that after the two uppermost polarizing films are pushed between the two anti-slip plates 133, the two polarizing films located below these two polarizing films become the two uppermost polarizing films on shelf 21.

[0052] Reference Figure 6 Positioning plates 124 are slidably mounted on the side of each mounting frame 12 away from the feeding frame 2. The length of the positioning plates 124 is vertical. A fifth driving component 125 is provided on the mounting frame 12 to drive the positioning plates 124 to slide. The fifth driving component 125 includes a telescopic cylinder, which is fixedly mounted on the mounting frame 12. The piston rod of the telescopic cylinder is fixedly connected to the positioning plate 124. When the polarizer is pushed between the two anti-slip plates 133, the positioning plate 124 is driven to slide by the telescopic cylinder, so that the positioning plate 124 slides onto the sliding path of the polarizer, thereby limiting the advancing distance of the polarizer, which facilitates the positioning of the polarizer and further improves the grinding accuracy. When the polarizer is in contact with the positioning plate 124, a portion of the polarizer protrudes between the two anti-slip plates 133 on both sides of the feeding frame 2 and the discharging frame 3, thereby reserving a certain grinding space.

[0053] Reference Figure 6The clamping assembly 4 includes a pressure plate 41 and a hydraulic cylinder 42. A support frame 15 is fixedly installed on the frame 1. The pressure plate 41 is slidably installed on the support frame 15 in the vertical direction. The pressure plate 41 is parallel to the top wall of the processing table 11. When clamping and fixing the polarizer, the width of the pressure plate 41 is slightly smaller than the distance between the two corresponding sliders 13 on the two mounting brackets 12 and larger than the distance between the two corresponding anti-slip plates 133. The hydraulic cylinder 42 is fixedly installed on the support frame 15, and the piston rod of the hydraulic cylinder 42 is fixedly connected to the pressure plate 41.

[0054] Reference Figure 7 , 8 The feeding assembly 6 includes a mounting block 61, a sixth driving component 62, a feeding roller 63, and a driving source 64. The top wall of the processing table 11 is provided with multiple mounting slots, and a mounting block 61 is slidably disposed in each mounting slot. The sixth driving component 62 includes a push cylinder. The interior of the processing table 11 is provided with a receiving cavity that communicates with the multiple mounting slots. The push cylinder is fixedly disposed in the receiving cavity. A connecting rod 611 is fixedly disposed on each mounting block 61, and the connecting rod 611 is fixedly connected to the piston rod of the push cylinder.

[0055] Reference Figure 6 , 8 Each mounting block 61 is rotatably equipped with a feeding roller 63. The axial direction of each feeding roller 63 is horizontal and parallel to each other. The axial direction of each feeding roller 63 is perpendicular to the length direction of the slider 13. The drive source 64 includes a servo motor, which is embedded in the mounting block 61. A first gear is coaxially fixed on the output shaft of the servo motor. A second gear is coaxially fixed on the feeding roller 63 on the mounting block 61 near the discharge rack 3. The first gear meshes with the second gear. A guide plate 111 is fixedly installed on the side of the processing table 11 near the discharge rack 3. The guide plate 111 is inclined downward in the direction away from the processing table 11.

[0056] After the polarizer is polished, the mounting block 61 is pushed up by the top cylinder, causing the feeding roller 63 to extend out of the mounting groove. The top plate 122 is then pushed away from the slider 13 by the pneumatic cylinder. Under the elastic force of the second compression spring, the support rod 134 drives the anti-slip plate to slide closer to the mounting frame 12, thereby separating the anti-slip plate 133 from the polarizer. After the anti-slip plate 133 separates from the polarizer, the polarizer falls onto the feeding roller 63 under gravity. The feeding roller 63 on the mounting block 61 near the discharge frame 3 is rotated by the motor, thereby causing the polarizer to slide on the processing table 11 and enter the discharge frame 3, making it easy to remove the polished polarizer from the processing table 11.

[0057] The implementation principle of the clamping mechanism for grinding polarizers according to an embodiment of this application is as follows: The polarizers to be ground are stacked and placed on the table 21. When it is necessary to place the polarizers on the processing table 11, the pneumatic cylinder drives the top plate 122 to slide towards the slider 13, so that the top plate 122 simultaneously abuts against multiple abutment blocks 1341, and pushes multiple support rods 134 to slide simultaneously, thereby pushing the anti-slip plate 133 to slide away from the slider 13. The servo cylinder drives the table 21 to slide, and the rodless cylinder drives the sliding frame 51 to slide down, so that the table 21... The projection of the two uppermost polarizers in the horizontal direction is located on the push plate 53. After the platform 21 is raised and lowered to a certain position, the gap between the two uppermost polarizers on the platform 21 and the two adjacent anti-slip plates 133 on the same mounting bracket 12 is aligned. The push plate 53 is driven to slide by the drive cylinder, pushing the two uppermost polarizers on the platform 21 between the two anti-slip plates 133 and abutting against the positioning plate 124. Then the platform 21 and the sliding bracket 51 continue to slide, and the two uppermost polarizers on the platform 21 are sequentially transported to each pair of adjacent anti-slip plates 133.

[0058] Hydraulic cylinder 42 drives pressure plate 41 to press down, pressing polarizer and anti-slip pad 133 together. Air pump 14 delivers air to air inlet pipe 1333, airbag 1332 expands and pushes anti-slip pad 1331 out of the opening and into contact with polarizer, thus preventing polarizer from sliding. Then, positioning plate 124 is driven to detach from polarizer, so that the two side walls of the discharge rack 3 near the loading rack 2 and the discharge rack 3 can be polished. When polishing polarizer, the position of polarizer is not easily displaced, so there is no need for secondary processing of the polished polarizer, which greatly improves the polishing efficiency of polarizer.

[0059] After the polarizer is polished, the mounting block 61 is pushed up by the top cylinder, causing the feeding roller 63 to extend out of the mounting groove. The top plate 122 is pushed away from the slider 13 by the pneumatic cylinder. The support rod 134 drives the anti-slip plate to slide closer to the mounting frame 12 under the elastic force of the second compression spring, thereby causing the anti-slip plate 133 to separate from the polarizer. After the anti-slip plate 133 separates from the polarizer, the polarizer falls onto the feeding roller 63 under gravity. The feeding roller 63 on the mounting block 61 near the discharge frame 3 is rotated by the motor, thereby causing the polarizer to slide on the processing table 11 and enter the discharge frame 3, and the polished polarizer is removed from the processing table 11.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A clamping mechanism for grinding polarizer edges, characterized in that: The assembly includes a frame (1) and a processing table (11) fixedly mounted on the frame (1). The frame (1) is used to fix the assembly to a grinding device, and the processing table (11) is used to place a polarizer. Mounting brackets (12) are fixedly mounted on the frame (1) and on both sides of the processing table (11). Sliding grooves are provided on both mounting brackets (12) along a direction perpendicular to the top wall of the processing table (11), and multiple sliding elements are slidably arranged in the sliding grooves of both mounting brackets (12). Block (13), and the sliders (13) on the two mounting brackets (12) correspond one-to-one. Each slider (13) is provided with an anti-slip piece (133). The anti-slip piece (133) is provided with an anti-slip component to prevent the polarizer from sliding. Two adjacent anti-slip pieces (133) on the same mounting bracket (12) are used to place two polarizers. The frame (1) is provided with a pressing assembly (4) for pressing the polarizer onto the processing table (11). A first elastic element (132) is provided between each of the two adjacent sliders (13) located on the same mounting bracket (12). The first elastic element (132) is used to drive the two sliders (13) away from each other. A loading rack (2) is fixedly installed on the frame (1). A platform (21) is slidably installed on the loading rack (2) along the vertical direction. The platform (21) is used to place the polarizer to be polished. A first driving member (22) is provided on the loading rack (2) to drive the platform (21) to slide. A loading assembly (5) is provided on the platform (21) to transport the polarizer to the space between two anti-slip plates (133). The feeding assembly (5) includes a sliding frame (51), a second driving member (52), a push plate (53), and a third driving member (54). The sliding frame (51) is slidably disposed on the platform (21) in a vertical direction. The second driving member (52) is used to drive the sliding frame (51) to slide. The push plate (53) is slidably disposed on the sliding frame (51) in a direction parallel to the top wall of the platform (21). The third driving member (54) is used to drive the push plate (53) to slide. The push plate (53) is used to push the two uppermost polarizers on the platform (21) between the two anti-slip sheets (133). The anti-slip component includes an anti-slip pad (1331), the surface of the anti-slip sheet (133) is smooth, the anti-slip sheet (133) has a cavity inside, both ends of the anti-slip sheet (133) have openings communicating with the cavity, the anti-slip pad (1331) is slidably disposed in both openings, an airbag (1332) is disposed in the cavity, the airbag (1332) is connected to an air inlet pipe (1333), an air pump (14) is fixedly disposed on the frame (1), and the air outlet of the air pump (14) is connected to the air inlet pipe (1333).

2. The clamping mechanism for grinding polarizer film according to claim 1, characterized in that: The anti-slip plate (133) is slidably disposed on the slider (13) in a direction close to or away from the mounting bracket (12). A support rod (134) is slidably disposed on the slider (13) along the sliding direction of the anti-slip plate (133). The anti-slip plate (133) is fixedly connected to the support rod (134). The mounting bracket (12) is provided with a drive assembly for driving multiple support rods (134) to slide simultaneously.

3. The clamping mechanism for grinding polarizer film according to claim 2, characterized in that: The driving assembly includes a second elastic element (121), a top plate (122), and a fourth driving element (123). Each slider (13) is provided with a second elastic element (121). The second elastic element (121) is used to drive the support rod (134) to slide and drive the anti-slip plate (133) to approach the mounting frame (12). The top plate (122) is slidably disposed on the mounting frame (12) along the length direction of the support rod (134). The fourth driving element (123) is used to drive the top plate (122) to slide. The top plate (122) is used to abut against the end of the support rod (134) away from the anti-slip plate (133).

4. The clamping mechanism for grinding polarizer film according to claim 1, characterized in that: Both mounting brackets (12) have a slidable positioning plate (124) on the side away from the feeding rack (2). The length direction of the positioning plate (124) is vertical. The mounting bracket (12) is provided with a fifth driving member (125) for driving the positioning plate (124) to slide.

5. A clamping mechanism for grinding polarizer edges according to claim 2, characterized in that: A discharge rack (3) is fixedly installed on the frame (1) and on the side of the mounting frame (12) away from the loading rack (2). A feeding assembly (6) for conveying the polished polarizer to the discharge rack (3) is provided on the processing table (11).

6. The clamping mechanism for grinding polarizer film according to claim 5, characterized in that: The feeding assembly (6) includes a mounting block (61), a sixth driving member (62), a feeding roller (63), and a driving source (64). The top wall of the processing table (11) is provided with multiple mounting slots, and the mounting block (61) is slidably disposed in each mounting slot. The sixth driving member (62) is used to drive the multiple mounting blocks (61) to slide. The feeding roller (63) is rotatably disposed on each mounting block (61). The axial directions of each feeding roller (63) are parallel. The driving source (64) is used to drive the feeding roller (63) on the mounting block (61) near the discharge rack (3) to rotate.

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