A polarizing plate edging machine

Abstract

The application relates to a polaroid edge grinding machine, and belongs to the technical field of polaroid manufacturing equipment. The machine body is provided with a machining platform for placing a polaroid and a pressing part for pressing the polaroid. The top of the machining platform is provided with a machining groove, and the opening of the machining groove is opposite to the pressing part. A receiving plate for receiving the polaroid is slidably arranged in the machining groove, and the sliding direction of the receiving plate is parallel to the depth direction of the machining groove. The machining platform is provided with a first driving piece for driving the receiving plate to slide. The receiving plate is provided with a positioning device for fixing the polaroid after the polaroid is moved into the installation groove by the receiving plate. The application has the effect of improving the yield of the polaroid.

Description

Technical Field

[0001] This application relates to the field of polarizer manufacturing equipment technology, and in particular to a polarizer edge grinding machine. Background Technology

[0002] The full name of a polarizer is polarizing film. Liquid crystal displays (LCDs) rely on polarized light for image formation. All LCDs have two polarizers, one on the front and one on the back, attached tightly to the liquid crystal glass, forming a liquid crystal sheet with a total thickness of about 1mm. Polarizers are primarily manufactured using a shearing process, followed by grinding of the sheared edges. During the grinding process, multiple polarizers are typically stacked together, and their sides are then ground.

[0003] Currently, patent document CN211136606U discloses a small polarizer edge grinding machine, which includes a machine body, two sets of edge grinding devices mounted on the machine body, and a fixing device. The polarizer is fixed on the fixing device, and the two sets of edge grinding devices are respectively mounted on both sides of the fixing device. The edge grinding device includes an X-axis drive device, a mounting plate, a Y-axis drive device, a sliding plate, and a grinding part. The fixing device has a "U"-shaped structure and includes a pressing part and a rotating part, which are integrally formed. The X-axis drive device and the mounting plate are both mounted on the machine body, and the X-axis drive device is connected to the mounting plate. The Y-axis drive device and the sliding plate are both mounted on the mounting plate, and the Y-axis drive device is connected to the sliding plate. The grinding part is mounted on the sliding plate; the grinding part includes grinding tools and a dust cover. When processing polarizers, stacks of polarizers are placed on the processing platform, and then the pressing part presses them onto the polarizers before processing.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: due to the small thickness and smooth surface of the polarizer, when stacked polarizers are rotated to cut another set of opposite edges, the polarizers are prone to relative slippage, which leads to positioning deviation of the polarizers and a high scrap rate after processing. Summary of the Invention

[0005] To improve the yield of polarizers, this application provides a polarizer edge grinding machine.

[0006] The polarizer edge grinding machine provided in this application adopts the following technical solution:

[0007] A polarizer edge grinding machine includes a machine body, on which a processing platform for placing polarizers is rotatably mounted. A pressing part for pressing polarizers is located directly above the processing platform on the machine body. A processing groove is formed on the top of the processing platform, with its opening facing the pressing part. A receiving plate for receiving polarizers is slidably mounted within the processing groove, the sliding direction of the receiving plate being parallel to the depth direction of the processing groove. A first driving member is provided on the processing platform for driving the receiving plate to slide. A positioning device is provided on the receiving plate for fixing the polarizer after it has been moved into the processing groove by the receiving plate.

[0008] By adopting the above technical solution, during the edge grinding process of polarizers, the polarizer is placed on the receiving plate, and then the pressing part presses the top of the polarizer, followed by edge grinding. After both sides of the polarizer are processed, the processing platform is rotated to change the processed surface of the polarizer. First, the first driving component drives the receiving plate to slide into the processing groove, thereby driving the polarizer into the processing groove. Then, the positioning device fixes the polarizer, and then the processing platform is rotated. Because the polarizer is fixed on the receiving plate, the possibility of adjacent polarizers shifting during the rotation is reduced, thereby reducing the possibility of over-grinding and improving the yield of polarizers. At the same time, the receiving plate is stored in the processing groove, which, compared to placing it on the processing platform, lowers the center of gravity of the polarizer, improves the stability of the polarizer, and further improves the yield of polarizers.

[0009] Optionally, the positioning device includes a mounting plate disposed on a receiving plate. The receiving plate is disc-shaped, and the mounting plate is located on a diagonal line of the receiving plate. The mounting plate is provided with multiple positioning rods, which are located on the surface of the mounting plate near the end. Two positioning rods form a group, and a group of positioning rods clamps the corners of the stacked polarizers.

[0010] By adopting the above technical solution, when the polarizer on the receiving plate is positioned and fixed, the positioning rods on both sides of the mounting plate clamp the corners of the polarizer, thereby fixing the position of the polarizer and reducing the possibility of the processing platform rotating and causing the polarizer to rotate. At the same time, the positioning rods clamp the opposite corners of the polarizer to fix it, which has the advantage of good fixing effect. In addition, compared with fixing the processed surface of the polarizer, clamping and fixing the corners of the polarizer has the advantage of less fixed unit investment, reducing cost. At the same time, it is convenient to grind the corners of the polarizer.

[0011] Optionally, the mounting plate includes a sleeve plate disposed within the receiving plate, the sleeve plate having openings at both ends, two sliding plates slidably disposed within the sleeve plate, the two sliding plates being located at opposite ends of the sleeve plate, the positioning rod being disposed on the sliding plates, and a second driving component for driving the sliding plates to slide being disposed within the sleeve plate, the area of ​​the receiving plate being smaller than the area of ​​the polarizer, and the area of ​​the polarizer being smaller than the opening area of ​​the processing groove.

[0012] By adopting the above technical solution, when the size of the polarizer changes, the second driving component drives the two sliding plates to move closer or further apart. The sliding plates move, causing the positioning rod to slide, and the positioning rod clamps and fixes the edges and corners of the polarizer. The operation is simple and convenient. At the same time, the range of applications is improved. Furthermore, the area of ​​the receiving plate is smaller than the area of ​​the polarizer, which makes it easier for the sliding plate to drive the positioning rod to clamp and fix the polarizer. Meanwhile, the processing surface of the polarizer is located outside the receiving plate, which reduces the obstruction of the receiving plate to the grinding wheel, thus facilitating the grinding of the polarizer. The area of ​​the polarizer is smaller than the opening area of ​​the processing groove, which makes it easier for the polarizer to enter the processing groove through the opening.

[0013] Optionally, the second driving component includes a first motor disposed within the sleeve plate, the length direction of the output shaft of the first motor being parallel to the depth direction of the machining groove, a gear being disposed on the output shaft of the first motor, and the second driving component further includes two racks meshing with the gear, the two racks being parallel to each other, and the two racks being respectively fixedly disposed on the slide plate.

[0014] By adopting the above technical solution, when adjusting the distance between the two sets of positioning rods, the first motor is started, the first motor drives the gear to rotate, the gear rotation drives the rack to slide, the rack slides and drives the slide plate to slide, the operation is simple and convenient; the rack is located on both sides of the gear, which makes it easy for the slide plates on both sides to move at the same distance and speed, so as to clamp and fix the polarizer.

[0015] Optionally, the positioning rod is slidably mounted on the slide plate.

[0016] By adopting the above technical solution, the positioning plate slides through the slide plate. When the receiving plate slides towards the processing groove, the end of the positioning rod near the bottom wall of the processing groove is supported by the bottom wall of the processing groove. Conversely, the positioning rod slides towards the opening of the processing groove relative to the receiving plate. The end of the positioning rod near the opening of the processing groove passes through the polarizer in sequence and is located above the top polarizer. Then, the first motor is started, and the first motor drives the slide plate to slide. The sliding of the slide plate drives the positioning rod to clamp and fix the polarizer. When the processing platform rotates to the required angle, the receiving plate drives the polarizer to move out of the processing groove. During this process, the positioning rod slides relative to the slide plate, so that the end of the positioning rod near the opening of the processing groove is located inside the receiving plate, which reduces the impact of the positioning rod on the grinding of the polarizer and facilitates the grinding process of the polarizer.

[0017] Optionally, an adjustment plate is rotatably mounted on the slide plate, the rotation axis of the adjustment plate is perpendicular to the plane where the slide plate is located, and the positioning rod slides through the adjustment plate.

[0018] By adopting the above technical solution, the adjustment plate is rotatably mounted on the slide plate. When the slide plate is retracted into the sleeve plate, the adjustment plate is passively rotated when any one of the positioning rods abuts the polarizer, thereby adjusting the position of the two positioning rods. This facilitates the clamping operation of the two positioning rods on the edges and corners of the polarizer, making the operation simple and convenient. At the same time, since polarizers of different specifications have different edge and corner positions, the adjustment plate is rotatably mounted on the slide plate, which facilitates the passive adjustment of the position of the positioning rods, thereby facilitating the clamping operation of the positioning rods on the edges and corners of the polarizer.

[0019] Optionally, the receiving plate is provided with a marking line, the length direction of which is parallel to the length direction of the mounting plate, and the diagonal of the polarizer coincides with the marking line.

[0020] By adopting the above technical solution, when placing the polarizer onto the receiving plate, since the sleeve plate and the slide plate are on the same diameter of the receiving plate, the marking line makes it easy to place the polarizer on the corresponding diameter of the receiving plate, thus facilitating the clamping operation of the positioning rod on the polarizer. When installing the polarizer onto the receiving plate, the diagonal corners of the polarizer are placed on the marking line to complete the placement of the polarizer. The operation is simple and convenient.

[0021] Optionally, a ball bearing is rotatably mounted on the end of the positioning rod near the bottom of the processing groove, and the ball bearing is supported on the bottom wall of the processing groove.

[0022] By adopting the above technical solution, the end of the positioning rod is provided with rolling balls, which reduces the friction between the positioning rod and the bottom wall of the processing groove, so that the slide can drive the positioning rod to slide and clamp and fix the polarizer.

[0023] Optionally, the adjusting plate has a first through hole for the positioning rod to slide, the inner wall of the first through hole is provided with a first magnet, and the positioning rod is provided with a second magnet that attracts the first magnet. The second magnet is located on the side wall near the end of the positioning rod.

[0024] By adopting the above technical solution, the positioning rod can be easily fixed in the receiving plate under the action of the first magnet and the second magnet, reducing the possibility of the positioning rod falling off the receiving plate, and thus facilitating the corner clamping operation of the polarizer.

[0025] Optionally, the opening of the processing groove is provided with a closing plate, and the closing plate has a second through hole for the polarizer to pass through. The thickness of the closing plate is less than the thickness of the receiving plate. When the receiving plate enters the second through hole, the top surface of the receiving plate is flush with the top surface of the closing plate, and the top surface of the mounting plate abuts against the bottom surface of the closing plate.

[0026] By adopting the above technical solution, the opening of the processing groove is closed under the action of the closing plate, which reduces the possibility of grinding debris entering the processing groove during the grinding process of the polarizer, and facilitates the cleaning of debris after the polarizer is ground; at the same time, the thickness of the closing plate is less than the thickness of the receiving plate, which makes it easier for the top surface of the receiving plate and the top wall of the closing plate to be on the same plane, thereby facilitating the grinding operation of the polarizer.

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

[0028] 1. During the edge grinding process of polarizing film, the polarizing film is placed on the receiving plate, and then the pressing part presses the top of the polarizing film, followed by edge grinding. After both sides of the polarizing film are processed, the processing platform is rotated to change the processed surface of the polarizing film. First, the first driving component drives the receiving plate to slide into the processing groove, so as to drive the polarizing film into the processing groove. Then, the positioning device fixes the polarizing film, and then the processing platform is rotated. Because the polarizing film is fixed on the receiving plate, the possibility of adjacent polarizing films shifting during the rotation is reduced, thereby reducing the possibility of over-grinding the polarizing film and improving the yield of polarizing films. At the same time, the receiving plate is stored in the processing groove, which, compared with placing it on the processing platform, lowers the center of gravity of the polarizing film, improves the stability of the polarizing film, and further improves the yield of polarizing films.

[0029] 2. The positioning plate slides through the slide plate. When the receiving plate slides towards the machining groove, the end of the positioning rod near the bottom wall of the machining groove is supported by the bottom wall of the machining groove. Conversely, the positioning rod slides towards the opening of the machining groove relative to the receiving plate. The end of the positioning rod near the opening of the machining groove passes through the polarizer in sequence and is located above the top polarizer. Then, the first motor is started, which drives the slide plate to slide. The sliding of the slide plate causes the positioning rod to clamp and fix the polarizer. When the machining platform rotates to the required angle, the receiving plate moves the polarizer out of the machining groove. During this process, the positioning rod slides relative to the slide plate, so that the end of the positioning rod near the opening of the machining groove is located inside the receiving plate, reducing the impact of the positioning rod on the grinding of the polarizer and facilitating the grinding of the polarizer. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a polarizer edge grinding machine according to an embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the processing platform in a polarizer edge grinding machine according to an embodiment of this application;

[0032] Figure 3 This is a cross-sectional view of the processing platform in a polarizer edge grinding machine according to an embodiment of this application;

[0033] Figure 4This is a cross-sectional view of the mounting plate in a polarizer edge grinding machine according to an embodiment of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Machine body; 2. Machining platform; 3. Pressing section; 4. Grinding device; 5. Machining groove; 6. Receiving plate; 7. Electric push rod;

[0035] 8. Positioning device; 81. Mounting plate; 811. Sleeve plate; 812. Slide plate; 82. Positioning rod; 83. First motor; 84. Gear; 85. Rack;

[0036] 9. Adjustment plate; 10. Marking line; 11. First through hole; 12. Closing plate; 13. Polarizing film. Detailed Implementation

[0037] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0038] Reference Figure 1 The polarizer edge grinding machine includes a machine body 1, on which a processing platform 2 for placing polarizers 13 is rotatably mounted. The rotation axis of the processing platform 2 is perpendicular to the placement table of the machine body 1. A pressing part 3 for pressing polarizers 13 is located on the machine body 1 and directly above the processing platform 2. The sliding direction of the pressing part 3 is perpendicular to the placement table of the machine body 1. Grinding devices 4 are located on the machine body 1 and on both sides of the processing platform 2. When grinding polarizers 13, stacked polarizers 13 are placed on the processing platform 2, and then the pressing part 3 slides and presses onto the polarizers 13 to fix them. Then, the sides of the polarizers 13 are ground by the grinding devices 4. After the two opposite sides of the polarizers 13 are processed, the processing platform 2 is rotated to change the surface of the polarizers 13 to be ground, so as to complete the grinding process of the polarizers 13.

[0039] This application discloses a polarizer edge grinding machine, referring to... Figure 1 and Figure 2The processing platform 2 has a processing groove 5 on its top, with the opening of the processing groove 5 facing the pressing part 3. The area of ​​the polarizer 13 is smaller than the opening area of ​​the processing groove 5. A receiving plate 6 for receiving the polarizer 13 is slidably disposed in the processing groove 5. In this embodiment, the receiving plate 6 is disc-shaped. In other embodiments, the receiving plate 6 can be replaced with a rectangular plate. The area of ​​the receiving plate 6 is smaller than the area of ​​the polarizer 13. The sliding direction of the receiving plate 6 is parallel to the depth direction of the processing groove 5. The processing platform 2 is provided with a first driving member for driving the receiving plate 6 to slide. In this embodiment, the first driving member includes an electric push rod 7 disposed in the processing groove 5. The length direction of the output shaft of the electric push rod 7 is parallel to the depth direction of the processing groove 5. The receiving plate 6 is fixedly disposed on the output shaft of the electric push rod 7. Furthermore, a positioning device 8 is provided on the receiving plate 6. The positioning device 8 is used to fix the polarizer 13 after the receiving plate 6 drives the polarizer 13 into the processing groove 5.

[0040] Before the processing platform 2 drives the polarizer 13 to rotate, the electric push rod 7 is first activated. The electric push rod 7 drives the receiving plate 6 to slide into the processing groove 5. The receiving plate 6 drives the polarizer 13 into the processing groove 5 to lower the height of the polarizer 13's center of gravity. Then, the positioning device 8 fixes the polarizer 13 onto the receiving plate 6. The processing platform 2 is then rotated to drive the polarizer 13 to rotate to the required angle. In the above process, the possibility of the polarizer 13 shifting during rotation is reduced, and the yield of the polarizer 13 is improved.

[0041] Reference Figure 3 and Figure 4 In this embodiment, the positioning device 8 includes a mounting plate 81 disposed on the receiving plate 6. The mounting plate 81 is located on a diagonal line of the receiving plate 6. Multiple positioning rods 82 are disposed on the mounting plate 81. Further, four positioning rods 82 are disposed. The multiple positioning rods 82 are located on the surface of the mounting plate 81 near the end. Two positioning rods 82 form a group. A group of positioning rods 82 clamps the corners of the stacked polarizer 13. When fixing the polarizer 13, a clamping space is formed between the two positioning rods 82 located at the same end. The corners of the polarizer 13 enter the clamping space and abut against the positioning rods 82, thus completing the fixing and clamping of the polarizer 13. The operation is simple and convenient.

[0042] Reference Figure 3 and Figure 4 To clamp and position different polarizers 13, the mounting plate 81 includes a sleeve 811 disposed within the receiving plate 6. Furthermore, the length direction of the sleeve 811 is parallel to the diagonal direction of the receiving plate 6. Both ends of the sleeve 811 are open. Two sliding plates 812 are slidably disposed within the sleeve 811. The two sliding plates 812 are respectively located at both ends of the sleeve 811. A positioning rod 82 is disposed on the sliding plate 812. A second driving member for driving the sliding plate 812 to slide is disposed within the sleeve 811.

[0043] Reference Figure 3 and Figure 4 In this embodiment of the application, the second driving component includes a first motor 83 disposed in the sleeve plate 811. Further, the first motor 83 is embedded in the sleeve plate 811, and the length direction of the output shaft of the first motor 83 is parallel to the depth direction of the processing groove 5. A gear 84 is coaxially disposed on the output shaft of the first motor 83. The second driving component also includes two racks 85 meshing with the gears 84. The two racks 85 are parallel to each other and are respectively fixedly disposed on the slide plate 812.

[0044] Reference Figure 3 and Figure 4 When clamping polarizers 13 of different specifications, place the polarizer 13 on the diagonal of the receiving plate 6, then start the first motor 83. The first motor 83 drives the gear 84 to rotate. The rotation of the gear 84 drives the rack 85 to slide. The sliding of the rack 85 drives the slide plate 812 to slide. The sliding of the slide plate 812 drives the positioning rod 82 to slide and clamp and fix the polarizer 13. The operation is simple and convenient.

[0045] Reference Figure 3 and Figure 4 Furthermore, to reduce the impact of the positioning rod 82 on the grinding of the polarizer 13, the positioning rod 82 is slidably mounted on the slide plate 812. When the processing platform 2 rotates to the required angle, the receiving plate 6 drives the polarizer 13 to move out of the processing groove 5. During this process, the positioning rod 82 slides relative to the slide plate 812, so that the end of the positioning rod 82 near the opening of the processing groove 5 is located inside the receiving plate 6, which reduces the impact of the positioning rod 82 on the grinding of the polarizer 13 and facilitates the grinding process of the polarizer 13.

[0046] Reference Figure 3 and Figure 4 To facilitate the quick clamping and fixing of the polarizer 13 by the positioning rod 82, an adjustment plate 9 is rotatably mounted on the slide plate 812. A connecting shaft is fixedly mounted at the center of the adjustment plate 9, and the connecting shaft is rotatably mounted on the slide plate 812. The rotation axis of the adjustment plate 9 is perpendicular to the plane on which the slide plate 812 is located. The positioning rod 82 slides through the adjustment plate 9. When the slide plate 812 is retracted into the sleeve plate 811, when any one of the positioning rods 82 abuts against the polarizer 13, the adjustment plate 9 is passively rotated to adjust the position of the two positioning rods 82, thereby facilitating the clamping operation of the two positioning rods 82 on the corners of the polarizer 13.

[0047] Reference Figure 3 and Figure 4To facilitate the rapid positioning of the polarizer 13 onto the diagonal of the receiving plate 6, the receiving plate 6 is provided with a marking line 10. The length direction of the marking line 10 is parallel to the length direction of the mounting plate 81, and the diagonal of the polarizer 13 coincides with the marking line 10. When placing the polarizer 13, the two opposite corners of the polarizer 13 are placed on the marking line 10 to ensure that the polarizer 13 is accurately positioned, which facilitates the subsequent clamping operation of the polarizer 13.

[0048] Reference Figure 3 and Figure 4 To facilitate the sliding of the positioning rod 82 on the bottom wall of the processing groove 5, a ball bearing is provided at the end of the positioning rod 82 near the bottom of the processing groove 5, and the ball bearing is supported on the bottom wall of the processing groove 5.

[0049] Reference Figure 3 and Figure 4 To reduce the possibility of the positioning rod 82 falling off the adjusting plate 9, the adjusting plate 9 is provided with a first through hole 11 for the positioning rod 82 to slide. The positioning rod 82 slides up and down along the first through hole 11. A first magnet is provided on the inner wall of the first through hole 11, and a second magnet is provided on the positioning rod 82 to attract the first magnet. The second magnet is located on the side wall near the end of the positioning rod 82. When the receiving plate 6 slides toward the opening of the processing groove 5, the end of the positioning rod 82 slides toward the receiving plate 6. When the end of the positioning rod 82 enters the first through hole 11, under the action of the first magnet and the second magnet, the positioning rod 82 is connected to the receiving plate 6 as a whole, reducing the possibility of the positioning rod 82 detaching from the receiving plate 6.

[0050] Reference Figure 3 and Figure 4 Figure 3 Figure 4 To reduce the possibility of debris entering the processing tank 5, a closing plate 12 is fixedly installed at the opening of the processing tank 5. The closing plate 12 has a second through hole for the polarizer 13 to pass through. The thickness of the closing plate 12 is less than the thickness of the receiving plate 6. When the receiving plate 6 enters the second through hole, the top surface of the receiving plate 6 is flush with the top surface of the closing plate 12, and the top surface of the mounting plate 81 abuts against the bottom surface of the closing plate 12. Under the action of the closing plate 12, the opening of the processing tank 5 is closed, reducing the possibility of debris generated during the grinding process of the polarizer 13 entering the processing tank 5, and facilitating the cleaning of debris after the polarizer 13 is ground. The thickness of the closing plate 12 is less than the thickness of the receiving plate 6, which makes it easier for the top surface of the receiving plate 6 and the top wall of the closing plate 12 to be on the same plane, thereby facilitating the grinding operation of the polarizer 13.

[0051] The implementation principle of a polarizer edge grinding machine according to an embodiment of this application is as follows:

[0052] When grinding the polarizer 13, first select an appropriate number of polarizers 13 and stack them into a stack. Then place the two opposite corners of the polarizer 13 on the marking line 10. Then the pressing part 3 slides and presses against the top of the polarizer 13.

[0053] When changing the grinding surface of the polarizer 13, first start the electric push rod 7. The electric push rod 7 drives the receiving plate 6 to slide into the machining groove 5. The receiving plate 6 drives the polarizer 13 into the machining groove 5 to lower the height of the center of gravity of the polarizer 13.

[0054] Subsequently, the first motor 83 is started, the first motor 83 drives the gear 84 to rotate, the gear 84 rotates and drives the rack 85 to slide, the rack 85 slides and drives the slide plate 812 to slide, the slide plate 812 drives the positioning rod 82 to slide and clamp and fix the polarizer 13.

[0055] When any one of the positioning rods 82 abuts against the polarizer 13, the adjusting plate 9 rotates passively to adjust the position of the two positioning rods 82, thereby facilitating the clamping operation of the two positioning rods 82 on the edges and corners of the polarizer 13, making the operation simple and convenient; then the processing platform 2 rotates, driving the polarizer 13 to rotate to the required angle, reducing the possibility of the polarizer 13 shifting during the rotation of the polarizer 13; then the electric push rod 7 is activated to drive the polarizer 13 out of the processing slot 5.

[0056] 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 polarizer edge grinding machine, comprising a machine body (1), wherein a processing platform (2) for placing a polarizer (13) is rotatably disposed on the machine body (1), and a pressing part (3) for pressing the polarizer (13) is disposed on the machine body (1) and directly above the processing platform (2), characterized in that: The processing platform (2) has a processing groove (5) on its top. The opening of the processing groove (5) faces the pressing part (3). A receiving plate (6) for receiving the polarizer (13) is slidably arranged in the processing groove (5). The sliding direction of the receiving plate (6) is parallel to the depth direction of the processing groove (5). The processing platform (2) is provided with a first driving member for driving the receiving plate (6) to slide. A positioning device (8) is provided on the receiving plate (6). The positioning device (8) is used to position the polarizer (13) after the receiving plate (6) moves into the processing groove (5). 3) Fixing; The positioning device (8) includes a mounting plate (81) disposed on the receiving plate (6), the receiving plate (6) being disc-shaped, the mounting plate (81) being located on a diagonal line of the receiving plate (6), the mounting plate (81) being provided with multiple positioning rods (82), the multiple positioning rods (82) being located on the surface of the mounting plate (81) near the end, two positioning rods (82) forming a group, a group of positioning rods (82) clamping the corners of the stacked polarizers (13); the mounting plate (81) includes a sleeve plate (811) disposed within the receiving plate (6), the sleeve plate (811) being disposed within the receiving plate (6) The plate (811) has openings at both ends. Two sliding plates (812) are slidably disposed inside the plate (811), with the two sliding plates (812) located at opposite ends of the plate (811). The positioning rod (82) is disposed on the sliding plate (812). A second driving component for driving the sliding plates (812) is disposed inside the plate (811). The area of ​​the receiving plate (6) is smaller than the area of ​​the polarizer (13), and the area of ​​the polarizer (13) is smaller than the opening area of ​​the processing groove (5). The second driving component includes a first motor (83) disposed inside the plate (811). The length direction of the output shaft of the first motor (83) is parallel to the depth direction of the machining groove (5). A gear (84) is provided on the output shaft of the first motor (83). The second driving component also includes two racks (85) meshing with the gear (84). The two racks (85) are parallel to each other and are respectively fixedly mounted on the slide plate (812). An adjusting plate (9) is rotatably mounted on the slide plate (812). The rotation axis of the adjusting plate (9) is perpendicular to the plane where the slide plate (812) is located. The positioning rod (82) slides through the adjusting plate (9).

2. The polarizer edge grinding machine according to claim 1, characterized in that: The positioning rod (82) slides through the slide plate (812).

3. The polarizer edge grinding machine according to claim 1, characterized in that: The receiving plate (6) is provided with a marking line (10), the length direction of the marking line (10) is parallel to the length direction of the mounting plate (81), and the diagonal of the polarizer (13) coincides with the marking line (10).

4. The polarizer edge grinding machine according to claim 2, characterized in that: The positioning rod (82) has a ball bearing rolled on its end near the bottom of the processing groove (5), and the ball bearing is supported on the bottom wall of the processing groove (5).

5. A polarizer edge grinding machine according to claim 1, characterized in that: The adjusting plate (9) has a first through hole (11) for the positioning rod (82) to slide. A first magnet is provided on the inner wall of the first through hole (11). A second magnet is provided on the positioning rod (82) to attract the first magnet. The second magnet is located on the side wall near the end of the positioning rod (82).

6. The polarizer edge grinding machine according to claim 1, characterized in that: The processing groove (5) has an opening with a closing plate (12). The closing plate (12) has a second through hole for the polarizer (13) to pass through. The thickness of the closing plate (12) is less than the thickness of the receiving plate (6). When the receiving plate (6) enters the second through hole, the top surface of the receiving plate (6) is flush with the top surface of the closing plate (12). The top surface of the mounting plate (81) abuts against the bottom surface of the closing plate (12).

Images