A pressing device for polarizing plate processing

Abstract

The application discloses a pressing device for polaroid processing, which comprises an operation platform, a supporting frame arranged on the operation platform, and a negative pressure adsorption fixing assembly arranged on the lower side of the polaroid. The lower surface of the polaroid is adsorbed and cleaned by the negative pressure adsorption fixing assembly, so that the polaroid is fixed in a mold positioning piece. When the polaroid on the pull plate is slid along a sliding path and arranged in a pull groove, a liquid crystal glass upper surface cleaning assembly arranged on the sliding path is used to clean the upper surface of the liquid crystal glass. The liquid crystal glass upper surface cleaning assembly comprises a glue sticking piece arranged on the upper side of the liquid crystal glass, a smooth surface and a sticking surface are arranged on the glue sticking piece, and the sticking surface faces the upper surface of the liquid crystal glass. When the polaroid is conveyed to the lower side of the glue sticking piece, a pressing assembly arranged on the operation platform is used to press the glue sticking piece, so that the sticking surface is in contact with the upper surface of the liquid crystal glass, and the fingerprints and dust on the liquid crystal glass are cleaned. The application has the effect of dust-free pressing of the polaroid.

Description

A pressing device for polarizing film processing Technical Field

[0001] The present invention relates to the field of polarizer processing equipment technology, and in particular to a pressing device for polarizer processing. Background Technology

[0002] Currently, the full name of a polarizer is a polarizing film. The imaging of a liquid crystal display must rely 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 1 mm. In the production and processing of optical instruments, the polarizer and the glass plate are usually pressed together and assembled before the next step of installation.

[0003] Related technology can be found in Chinese Patent CN115026542A, which discloses a pressing device for processing polarizers for optical instruments, belonging to the field of polarizer processing technology. It includes a worktable and a pressing device. The worktable is placed on a horizontal surface, and the pressing device is located on top of the worktable. The pressing device includes a support base, a pressing assembly, a flipping assembly, a fixing assembly, and two pressing rollers. The support base is fixedly located on top of the worktable. The pressing assembly is located on top of the support base and slides in cooperation with it. The flipping assembly is located on the support base and rotates in cooperation with it. The fixing assembly is located on the flipping assembly and slides in cooperation with it. Both pressing rollers are fixedly located on the pressing assembly, and the flipping assembly is located below the pressing assembly. This invention effectively disperses air bubbles generated during the pressing of the polarizer with the liquid crystal glass from the center outwards by rotating and pressing the polarizer at the center.

[0004] The aforementioned prior art cleans and replenishes water to the wiping rollers on the wiping device using a water replenisher, which keeps the surface of the liquid crystal glass clean and prevents dust from adhering to the polarizer when it is pressed against the liquid crystal glass. The presence of water on the surface of the liquid crystal glass also makes it easier for the polarizer and liquid crystal glass to press together. However, since the wiping rollers are exposed outside the device, they cannot fundamentally remove dust from the surface of the polarizer and hydraulic glass. Dust will still remain on the wiping rollers after wiping. Combined with the water replenishment from the water replenisher, when the polarizer and hydraulic glass are wiped again, the dust remaining on the wiping rollers will re-contaminate the surface of the polarizer and hydraulic glass, making it difficult to wipe the polarizer and hydraulic glass multiple times. Summary of the Invention

[0005] This application provides a pressing device for polarizer processing, which has the function of pressing polarizers in a dust-free manner.

[0006] This application provides a pressing device for processing polarizers, which adopts the following technical solution:

[0007] A pressing device for processing polarizers includes an operating platform with a support frame. A vertically movable pressure plate is mounted on the support frame. The pressure plate is moved up and down using a hydraulic rod mounted on the support frame. Several pressing blocks are located at the bottom of the pressure plate. Each pressing block has a fitting groove on its longitudinal projection portion, situated on the upper surface of the operating platform. A drawer is located on one side of the operating platform, within which a sliding path is formed. A drawer plate slides along the sliding path. Several sets of mold-closing positioning components, matching the fitting groove, are mounted on the drawer plate to position the polarizer. A negative pressure adsorption fixing assembly is located on the lower side of the polarizer. The lower surface of the polarizer is adsorbed and cleaned, fixing the polarizer within the mold positioning component. When the polarizer on the drawing plate slides along the sliding path into the drawing slot, a liquid crystal glass upper surface cleaning component located on the sliding path is used to clean the upper surface of the liquid crystal glass. The liquid crystal glass upper surface cleaning component includes an adhesive adhesive on the upper side of the liquid crystal glass, which has a glossy surface and an adhesive surface, with the adhesive surface facing the upper surface of the liquid crystal glass. When the polarizer is conveyed to the lower side of the adhesive adhesive, a pressure applying component located on the operating platform applies pressure to the adhesive adhesive, bringing the adhesive surface into contact with the upper surface of the liquid crystal glass to clean fingerprints and dust from the liquid crystal glass.

[0008] By adopting the above technical solution, a negative pressure adsorption fixing component is provided on the lower surface of the polarizer. This component not only fixes the polarizer and the liquid crystal glass, but also removes dust and impurities from the lower surface of the polarizer, ensuring the cleanliness of the lower surface of the polarizer and the interior of the mold positioning component. The upper surface cleaning component of the liquid crystal glass removes dust and fingerprints from the upper surface of the liquid crystal glass. Dust removal is performed inside the sealed operating platform, effectively preventing impurities and dust in the air from falling onto the surface of the polarizer and the liquid crystal glass, thereby ensuring the hot pressing quality of the polarizer and the liquid crystal glass.

[0009] Preferably, the operating platform is provided with a first driving component for driving the drawer. The first driving component includes a drive motor and a rack located on the side of the drawer. The output end of the drive motor is connected to a gear, and the gear meshes with the rack.

[0010] By adopting the above technical solution, the power supply of the drive motor is turned on, causing the gear to rotate and slide the drawing plate inside the drawing groove. The meshing effect between the gear and the rack is good, which makes it easy for the drawing plate to slide stably in the drawing groove.

[0011] Preferably, the positioning polarizer includes a positioning sleeve disposed on the drawer plate, the positioning sleeve having a filling part inside, the filling part being made of a flexible material, and the upper surface of the filling part having a surface that matches the lower surface of the polarizer.

[0012] By adopting the above technical solution, during the pressing process of the polarizer, the lower surface of the polarizer is protected to prevent the polarizer from contacting the sleeve and to prevent scratches from being generated on the lower surface of the polarizer. The adhesive and the lower surface of the polarizer are bonded to each other, which facilitates quick positioning of the polarizer.

[0013] Preferably, the inner cross-sectional dimensions of the positioning sleeve match the outer cross-sectional dimensions of the pressing block.

[0014] By adopting the above technical solution, the lifting pressing block can pass through the positioning sleeve and press the pressing plate inside the positioning sleeve, which is simple and practical.

[0015] Preferably, the negative pressure adsorption fixing assembly includes a negative pressure suction device and a suction cup disposed in the filling part and connected to the negative pressure suction end of the negative pressure suction device. The suction cup has an opening that is perpendicular to the lower surface of the polarizer. The opening has an outwardly flared edge that penetrates the adhesive surface. The suction cups are evenly distributed around the center position of the filling part.

[0016] By adopting the above technical solution, the external power supply of the negative pressure suction device is turned on, so that the inside of the suction cup is in a negative pressure state. When the polarizer approaches the opening of the suction cup, the negative pressure principle is used to quickly position the polarizer and the liquid crystal glass inside the sleeve, and the dust on the surface of the polarizer is quickly adsorbed into the inside of the negative pressure suction device. When the polarizer contacts the outward folded edge of the suction cup, the outward folded edge will deform outward until the outward folded edge is attached to the bonding surface. Under the continuous negative pressure, the polarizer can be stably fixed inside the mold closing positioning part.

[0017] Preferably, the operating platform has a through hole inside, and a flexible sealing gasket is provided inside the through hole, with the flexible sealing gasket located on the upper side of the adhesive.

[0018] By adopting the above technical solution, the pressure component is used to deform the flexible sealing gasket downwards and make contact with the smooth surface of the adhesive. The flexible sealing gasket ensures the airtightness of the operating platform and prevents dust in the air from falling into the interior of the operating platform and affecting the processing of the polarizer.

[0019] Preferably, the pressure application component includes a first cylinder, the output end of which is connected to a pressure application cover plate, the bottom of which faces the through hole, and the cross-sectional dimension of the pressure application cover plate is smaller than that of the through hole.

[0020] By adopting the above technical solution, the lifting and lowering of the pressure cover plate is used to bring the adhesive surface into contact with the upper surface of the LCD glass, thereby removing dust and fingerprints from the LCD glass.

[0021] Preferably, the adhesive is provided with a drive shaft and a driven shaft at both ends, and the adhesive is wound onto the driven shaft.

[0022] By adopting the above technical solution, dirt will remain on the adhesive surface after pasting. Repeated use of this adhesive surface will cause secondary pollution to the surface of the liquid crystal glass. By using the rotation of the drive shaft to release the clean adhesive, the dirty adhesive is misaligned with the horizontal direction of the liquid crystal glass, making it easier to move the clean adhesive to the upper side of the liquid crystal glass, thereby solving the above problem.

[0023] Preferably, a sealing plate is rotatably provided between the fitting groove and the positioning sleeve. The sealing plate includes a limiting sleeve, and the limiting sleeve has a flexible sealing layer inside. When the pressing block presses the polarizer, the limiting sleeve is located at the bottom opening of the fitting groove, and the flexible sealing layer seals the bottom opening of the fitting groove to prevent external dust from passing through the fitting groove and falling onto the polarizer and liquid crystal glass, thus ensuring the airtightness of the operating platform. The operating platform is provided with a fixed shaft, and a rotating cylinder is rotatably provided on the fixed shaft. The rotating cylinder is connected to the sealing plate through a connecting rod. A torsion spring is provided on the outside of the fixed shaft. One end of the torsion spring is connected to the fixed shaft, and the other end of the torsion spring is connected to the rotating cylinder. A fitting rod is provided on the rotating cylinder. The sealing plate is rotatably set around the central axis of the fixed shaft through the rotating cylinder and is reset by the torsion spring.

[0024] By adopting the above technical solution and by setting a rotatable sealing plate, when the sealing plate is located at the bottom opening of the fitting groove, the sealing of the operating platform can be effectively guaranteed. When the sealing plate rotates until it is misaligned with the fitting groove, it is convenient to remove the polarizer.

[0025] Preferably, the operating platform is provided with an ejection assembly for ejecting the polarizer. The ejection assembly includes a second cylinder and a channel located in the drawer plate. The channel is located below the filling section. The output end of the second cylinder is connected to an ejection rod. A connecting rod is provided on one side of the ejection rod. A vertical plate is provided at the free end of the connecting rod. The vertical plate slides through the interior of the operating platform. The top of the vertical plate is provided with an inclined surface.

[0026] By adopting the above technical solution, the second cylinder drives the ejector rod to move upward inside the channel, causing the filling part to arch upward. The arched filling part creates a gap between the outward-curved edge of the suction cup and the polarizer, which facilitates the detachment of the polarizer and makes it easy to quickly remove the polarizer.

[0027] In summary, this application has the following beneficial effects:

[0028] 1. By setting a negative pressure adsorption fixing component on the lower surface of the polarizer, the negative pressure adsorption fixing component not only fixes the polarizer and the liquid crystal glass, but also removes dust and impurities from the lower surface of the polarizer, ensuring the cleanliness of the lower surface of the polarizer and the inside of the mold positioning component. The cleaning component on the upper surface of the liquid crystal glass removes dust and fingerprints from the upper surface of the liquid crystal glass, and the dust removal operation is carried out inside the sealed operating platform. This effectively prevents impurities and dust in the air from falling into the surface of the polarizer and the liquid crystal glass, thereby ensuring the hot pressing quality of the polarizer and the liquid crystal glass.

[0029] 2. By setting a rotatable drive shaft to release clean adhesive, the dirty adhesive is misaligned with the horizontal direction of the LCD glass, making it easier to move the clean adhesive to the upper side of the LCD glass. This solves the problem that "dirt remains on the adhesive surface after application, and reusing the adhesive surface will cause secondary pollution to the LCD glass surface".

[0030] 3. By utilizing the ejector assembly, a linkage is established with the sealing plate. When the pressing block presses the polarizer, the limiting sleeve is located at the bottom opening of the fitting groove, and the bottom opening of the fitting groove is sealed by a flexible sealing layer to prevent external dust from passing through the fitting groove and falling onto the polarizer and LCD glass, thus ensuring the sealing of the operating platform. When the ejector assembly ejects the pressed polarizer, the upward-moving ejector assembly drives the sealing plate, causing the sealing plate to be misaligned with the fitting groove, making it easy to quickly remove the pressed polarizer. Attached Figure Description

[0031] Figure 1 is a schematic diagram of the overall structure of the pressing device for polarizer processing in this embodiment;

[0032] Figure 2 is an exploded view of the operating platform and support frame in this embodiment;

[0033] Figure 3 is a cross-sectional view of the operating platform in this embodiment;

[0034] Figure 4 is an overall structural diagram of the connection between the first driving component and the pull plate in this embodiment;

[0035] Figure 5 is an overall structural diagram of the mold closing positioning component in this embodiment;

[0036] Figure 6 is an overall structural diagram of the negative pressure adsorption fixation component in this embodiment;

[0037] Figure 7 is an exploded view of the pressure application component and the operating platform in this embodiment;

[0038] Figure 8 is a schematic diagram of the connection between the ejector assembly and the mold closing positioning component in this embodiment;

[0039] Figure 9 is an overall structural diagram of the ejector component in this embodiment;

[0040] Figure 10 is a structural diagram of the arched structure in the middle of the veneer in this embodiment.

[0041] Explanation of reference numerals in the attached drawings: 1. Operating platform; 2. Support frame; 3. Pressure plate; 4. Pressing block; 5. Hydraulic rod; 6. Fitting groove; 7. Pulling groove; 8. Pulling plate; 9. First drive assembly; 91. Rack; 92. Gear; 10. Mold closing positioning component; 1001. Positioning sleeve; 1002. Filling part; 1003. Surface; 11. Negative pressure adsorption fixing assembly; 1101. Negative pressure suction device; 1102. Suction cup; 1103. Opening part; 1104. Outwardly turned edge part; 1105. Branch pipe; 1106. Negative pressure airbag; 1107. Sub-pipe; 1108. Main pipe; 1 2. Cleaning assembly for the upper surface of LCD glass; 1201. Adhesive bonding; 1202. Drive shaft; 1203. Driven shaft; 13. Pressure application assembly; 1301. First cylinder; 1302. Pressure cover plate; 14. Through hole; 15. Flexible sealing gasket; 16. Sealing plate; 1601. Limiting sleeve; 1602. Flexible sealing layer; 17. Fixed shaft; 18. Rotary drum; 19. Connecting rod; 20. Torsion spring; 21. Ejection assembly; 2101. Second cylinder; 2102. Channel; 2103. Ejection rod; 2104. Connecting rod; 2105. Vertical plate; 2106. Inclined surface. Detailed Implementation

[0042] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0043] This invention discloses a pressing device for polarizing film processing, as shown in Figures 1-2. It includes an operating platform 1, a support frame 2 on the operating platform 1, and a pressing plate 3 that can be raised and lowered on the support frame 2. The pressing plate 3 is driven to rise and fall by a hydraulic rod 5 on the support frame 2. Several pressing blocks 4 are provided at the bottom of the pressing plate 3. The longitudinal projection part of the pressing block 4 is provided with a fitting groove 6 located on the upper surface of the operating platform 1, as shown in Figures 2-3. A slot 7 is provided on one side of the operating platform 1. A sliding path is provided in the slot 7, and a sliding plate 8 is slidably provided on the sliding path.

[0044] As shown in Figure 4, the operating platform 1 is equipped with a first driving component 9 for driving the drawer plate 8. The first driving component 9 includes a drive motor and a rack 91 located on the side of the drawer plate 8. The output end of the drive motor is connected to a gear 92, which meshes with the rack 91. By starting the power supply of the drive motor, the gear 92 rotates and slides the drawer plate 8 inside the drawer slot 7. The meshing effect between the gear 92 and the rack 91 is good, which makes it easy for the drawer plate 8 to slide stably in the drawer slot 7.

[0045] As shown in Figures 4 and 5, the drawer plate 8 is provided with several sets of mold-closing positioning parts 10 that match the fitting groove 6. The mold-closing positioning parts 10 are used to position the polarizer. The polarizer includes a positioning sleeve 1001 provided on the drawer plate 8. The inner cross-sectional dimensions of the positioning sleeve 1001 match the outer cross-sectional dimensions of the pressing block 4. The lifting pressing block 4 can pass through the positioning sleeve 1001 and press the pressing piece inside the positioning sleeve 1001. It is simple and practical. The positioning sleeve 1001 is provided with a filling part 1002. The filling part 1002 is made of flexible material. During the pressing process of the polarizer, it is used to protect the lower surface of the polarizer, prevent the polarizer from contacting the sleeve, and prevent scratches from being generated on the lower surface of the polarizer. The upper surface of the filling part 1002 is provided with a mating surface 1003 that matches the lower surface of the polarizer. The mating surface 1003 and the lower surface of the polarizer are mated to each other, which facilitates quick positioning of the polarizer.

[0046] A negative pressure adsorption and fixing component 11 is provided on the lower side of the polarizer. The negative pressure adsorption and fixing component 11 is used to adsorb and clean the lower surface of the polarizer, so that the polarizer is fixed in the mold positioning component 10. The negative pressure adsorption and fixing component 11 includes a negative pressure suction device 1101 and a suction cup 1102 located in the filling part 1002 and connected to the negative pressure suction end of the negative pressure suction device 1101. The suction cup 1102 has an opening 1103, which is perpendicular to the lower surface of the polarizer. The opening 1103 has an outwardly turned edge 1104 that penetrates the bonding surface 1003. By activating the external power supply of the negative pressure suction device 1101, the inside of the suction cup 1102 is in a negative pressure state. When the polarizer approaches the opening 1103 of the suction cup 1102, the polarizer is fixed in place. At time 3, the principle of negative pressure is used to quickly position the polarizer and liquid crystal glass inside the sleeve, and the dust on the surface of the polarizer is quickly adsorbed into the inside of the negative pressure suction device 1101. When the polarizer comes into contact with the outward-curved edge 1104 of the suction cup 1102, the outward-curved edge 1104 will deform outward until the outward-curved edge 1104 adheres to the bonding surface 1003. Under the continuous negative pressure, the polarizer can be stably fixed inside the mold positioning part 10. The suction cups 1102 are evenly distributed around the center position of the filling part 1002, and are evenly adsorbed at multiple angles on the lower surface of the polarizer. The adsorption force is uniform, which makes it easy to stably fix the position of the polarizer and avoid the polarizer from tilting during the pressing process, which would affect the pressing effect of the polarizer.

[0047] As shown in Figure 6, the bottom of several sets of suction cups 1102 is connected to branch pipes 1105, the bottom of branch pipes 1105 is connected to negative pressure airbags 1106, and the negative pressure airbags 1106 are connected to branch pipes 1107. The free end of the branch pipes 1107 is connected to a main pipe 1108, and the main pipe 1108 is connected to the negative pressure end of the negative pressure suction device 1101. Under the action of the negative pressure suction device 1101, the main pipe 1108, branch pipes 1107, negative pressure airbags 1106, branch pipes 1105 and the interior of several sets of suction cups 1102 are in a negative pressure state in sequence, which plays the role of negative pressure suction. The main pipe 1108 is a corrugated pipe that can be extended to adapt to the sliding of the above-mentioned draw plate 8.

[0048] When the polarizer on the drawer plate 8 slides along the sliding path into the drawer slot 7, the liquid crystal glass upper surface cleaning assembly 12 provided on the sliding path is used to clean the upper surface of the liquid crystal glass. The liquid crystal glass upper surface cleaning assembly 12 includes an adhesive adhesive 1201 provided on the upper side of the liquid crystal glass. The adhesive adhesive 1201 has a glossy surface and an adhesive surface, with the adhesive surface facing the upper surface of the liquid crystal glass. When the polarizer is conveyed to the lower side of the adhesive adhesive 1201, the pressure applying assembly 13 provided on the operating platform 1 is used to apply pressure to the adhesive adhesive 1201 and make the adhesive surface contact the upper surface of the liquid crystal glass to clean fingerprints and dust on the liquid crystal glass.

[0049] The operating platform 1 has a through hole 14 inside, and a flexible sealing gasket 15 is installed inside the through hole 14. The flexible sealing gasket 15 is located on the upper side of the adhesive bonding 1201. The pressure application component 13 causes the flexible sealing gasket 15 to deform downward and come into contact with the smooth surface of the adhesive bonding 1201. The flexible sealing gasket 15 ensures the airtightness of the operating platform 1 and prevents dust in the air from falling into the interior of the operating platform 1 and affecting the processing of the polarizer.

[0050] The pressure application component 13 includes a first cylinder 1301, the output end of which is connected to a pressure application cover plate 1302. The bottom of the pressure application cover plate 1302 faces the through hole 14, and the cross-sectional dimension of the pressure application cover plate 1302 is smaller than that of the through hole 14. By raising and lowering the pressure application cover plate 1302, the adhesive surface of the adhesive 1201 comes into contact with the upper surface of the liquid crystal glass, thus removing dust and fingerprints from the liquid crystal glass.

[0051] By providing a negative pressure adsorption fixing component 11 on the lower surface of the polarizer, the negative pressure adsorption fixing component 11 not only serves to fix the polarizer, but also removes dust and impurities from the lower surface of the polarizer, ensuring the cleanliness of the lower surface of the polarizer and the inside of the mold positioning component 10. The cleaning component 12 on the upper surface of the liquid crystal glass removes dust and fingerprints from the upper surface of the liquid crystal glass, and the dust removal operation is carried out inside the sealed operating platform 1. This effectively prevents impurities and dust in the air from falling onto the surface of the polarizer and the liquid crystal glass, thereby ensuring the hot pressing quality of the polarizer and the liquid crystal glass.

[0052] The adhesive 1201 has a drive shaft 1202 and a driven shaft 1203 at both ends. The adhesive 1201 is wound onto the driven shaft 1203. After the adhesive is applied, dirt will remain on the adhesive surface. Repeated use of the adhesive surface will cause secondary pollution to the surface of the liquid crystal glass. The rotation of the drive shaft 1202 is used to release the clean adhesive 1201, so that the dirty adhesive 1201 is misaligned with the horizontal direction of the liquid crystal glass. This makes it easier to move the clean adhesive 1201 to the upper side of the liquid crystal glass, thereby solving the above problem.

[0053] A sealing plate 16 is rotatably provided between the positioning sleeve 1001 and the fitting groove 6. The sealing plate 16 includes a limiting sleeve 1601. The limiting sleeve 1601 has a flexible sealing layer 1602 inside. When the pressing block 4 presses the polarizer, the limiting sleeve 1601 is located at the bottom opening of the fitting groove 6, and the flexible sealing layer 1602 is used to seal the bottom opening of the fitting groove 6 to prevent external dust from passing through the fitting groove 6 and falling onto the polarizer and liquid crystal glass, thus ensuring the airtightness of the operating platform 1.

[0054] As shown in Figures 8 and 9, the operating platform 1 is provided with a fixed shaft 17, and a rotating cylinder 18 is rotatably mounted on the fixed shaft 17. The rotating cylinder 18 is connected to the sealing plate 16 through a connecting rod 19. A torsion spring 20 is provided on the outside of the fixed shaft 17. One end of the torsion spring 20 is connected to the fixed shaft 17, and the other end of the torsion spring 20 is connected to the rotating cylinder 18. The sealing plate 16 is rotatably mounted around the central axis of the fixed shaft 17 through the rotating cylinder 18 and is reset by the torsion spring 20.

[0055] The operating platform 1 is equipped with an ejection assembly 21 for ejecting the polarizer. The ejection assembly 21 includes a second cylinder 2101 and a channel 2102 located in the drawer plate 8. The channel 2102 is located below the filling part 1002. The output end of the second cylinder 2101 is connected to an ejection rod 2103. The second cylinder 2101 drives the ejection rod 2103 to move upward inside the channel 2102, causing the filling part 1002 to arch upward. After the filling part 1002 arches, a gap is created between the outwardly turned edge 1104 on the suction cup 1102 and the polarizer, which facilitates the detachment of the polarizer and makes it easy to quickly remove the polarizer.

[0056] A connecting rod 2104 is provided on one side of the ejector rod 2103. A vertical plate 2105 is provided at the free end of the connecting rod 2104. The vertical plate 2105 slides through the interior of the operating platform 1. An inclined surface 2106 is provided at the top of the vertical plate 2105. A fitting rod is provided on the rotating cylinder 18, as shown in Figure 10. When the vertical plate 2105 moves upward, the inclined surface 2106 will contact the fitting rod and push the rotating cylinder 18 around the central axis of the fixed shaft 17, causing the sealing plate 16 and the positioning sleeve 1001 to be misaligned, exposing the bottom of the fitting groove 6. With the help of the rising of the ejector rod 2103, the polarizer passes through the fitting groove 6, making it easy to quickly remove the polarizer.

[0057] Working principle: When in use, the user first connects the power supply in the operating platform 1 and starts the drive motor to drive the gear 92, so that the draw plate 8 is pulled out of the draw slot 7. Then, the polarizer is placed into the positioning sleeve 1001 and the liquid crystal glass is placed on the polarizer. Then, the negative pressure suction device 1101 is started to fix the polarizer and the liquid crystal glass inside the positioning sleeve 1001.

[0058] Then the reverse drive gear 92 is used to make the pull plate 8 slide back into the pull slot 7. When the positioning sleeve 1001 slides to the bottom of the liquid crystal glass upper surface cleaning component 12, the adhesive surface on the adhesive 1201 is brought into contact with the upper surface of the liquid crystal glass by the pressure application component 13 to remove fingerprints and dust from the liquid crystal glass.

[0059] When the positioning sleeve 1001 slides to the bottom of the fitting groove 6, the hydraulic rod 5 drives the pressure plate 3 to descend until the pressing block 4 passes through the positioning sleeve 1001, pressing the liquid crystal glass and the polarizer together to form a whole. Then, the ejector assembly 21 moves upward and drives the sealing plate 16 to make the sealing plate 16 misaligned with the fitting groove 6, so as to quickly remove the pressed polarizer. During the pressing process of the pressing block 4 pressing the polarizer, the bottom opening of the fitting groove 6 is sealed by the flexible sealing layer 1602 to prevent external dust from falling into the polarizer and liquid crystal glass through the fitting groove 6, thus ensuring the airtightness of the operating platform 1.

[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 pressing device for processing polarizer film, comprising an operating platform (1), a support frame (2) on the operating platform (1), a pressing plate (3) for vertical lifting on the support frame (2), the pressing plate (3) being driven to rise and fall by a hydraulic rod (5) on the support frame (2), a plurality of pressing blocks (4) being provided at the bottom of the pressing plate (3), and the longitudinal projection portion of the pressing block (4) being provided with a fitting groove (6) located on the upper surface of the operating platform (1), characterized in that: The operating platform (1) has a slot (7) on one side, a sliding path in the slot (7), and a sliding plate (8) on the sliding path. The sliding plate (8) has several sets of mold-closing positioning parts (10) that match the fitting groove (6). The mold-closing positioning parts (10) are used to position the polarizer. The lower side of the polarizer is provided with a negative pressure adsorption fixing component (11). The negative pressure adsorption fixing component (11) is used to adsorb and clean the lower surface of the polarizer, so that the polarizer is fixed in the mold-closing positioning part (10). When the polarizer on the sliding plate (8) is slid into the slot (7) along the sliding path, the liquid crystal glass upper surface cleaning component (12) on the sliding path is used. For cleaning the upper surface of liquid crystal glass, the liquid crystal glass upper surface cleaning assembly (12) includes an adhesive adhesive (1201) disposed on the upper side of the liquid crystal glass. The adhesive adhesive (1201) has a glossy surface and an adhesive surface (1003). The adhesive surface (1003) faces the upper surface of the liquid crystal glass. When the polarizer is conveyed to the lower side of the adhesive adhesive (1201), the adhesive adhesive (1201) is pressed by the pressure application assembly (13) disposed on the operating platform (1), and the adhesive surface (1003) is brought into contact with the upper surface of the liquid crystal glass to clean fingerprints and dust on the liquid crystal glass. The positioning polarizer includes a positioning sleeve (1001) disposed on the drawer plate (8). A sealing plate (16) is rotatably provided between the fitting groove (6) and the positioning sleeve (1001). A fixed shaft (17) is provided on the operating platform (1), and a rotating cylinder (18) is rotatably provided on the fixed shaft (17). The rotating cylinder (18) and the sealing plate (16) are connected by a connecting rod (19). A torsion spring (20) is provided on the outside of the fixed shaft (17). One end of the torsion spring (20) is connected to the fixed shaft (17), and the other end of the torsion spring (20) is connected to the rotating cylinder (18). A fitting rod is provided on the rotating cylinder (18). The sealing plate (16) is rotatably set around the central axis of the fixed shaft (17) via the rotating cylinder (18) and is subjected to the torsion spring (20). Reset; The operating platform (1) is provided with an ejection assembly (21) for ejecting the polarizer. The ejection assembly (21) includes a second cylinder (2101) and a channel (2102) in the drawer (8). The channel (2102) is located below the filling part (1002). The output end of the second cylinder (2101) is connected to an ejection rod (2103). A connecting rod (2104) is provided on one side of the ejection rod (2103). A vertical plate (2105) is provided at the free end of the connecting rod (2104). The vertical plate (2105) slides through the interior of the operating platform (1). The top of the vertical plate (2105) is provided with an inclined surface (2106).

2. The pressing device for polarizer processing according to claim 1, characterized in that: The operating platform (1) is provided with a first drive assembly (9) for driving the drawer (8). The first drive assembly (9) includes a drive motor and a rack (91) located on the side of the drawer (8). The output end of the drive motor is connected to a gear (92), and the gear (92) meshes with the rack (91).

3. The pressing device for polarizer processing according to claim 1, characterized in that: The positioning sleeve (1001) has a filling part (1002) inside. The filling part (1002) is made of a flexible material, and the upper surface of the filling part (1002) is provided with a surface (1003) that matches the lower surface of the polarizer.

4. The pressing apparatus for polarizer processing according to claim 3, characterized in that: The inner cross-sectional dimensions of the positioning sleeve (1001) match the outer cross-sectional dimensions of the pressing block (4).

5. The pressing apparatus for polarizer processing according to claim 1, characterized in that: The negative pressure adsorption fixing assembly (11) includes a negative pressure suction device (1101) and a suction cup (1102) disposed in the filling part (1002) and connected to the negative pressure suction end of the negative pressure suction device (1101). The suction cup (1102) has an opening (1103) that is perpendicular to the lower surface of the polarizer. The opening (1103) has an outwardly turned edge (1104) that penetrates the bonding surface (1003). The suction cups (1102) are evenly distributed around the center of the filling part (1002). The bottom of several sets of suction cups (1102) are connected to branch tubes (1105). The bottom of the branch tubes (1105) is connected to a negative pressure airbag (1106). The negative pressure airbag (1106) is connected to a branch tube (1107). The free end of the branch tube (1107) is connected to a main tube (1108). The main tube (1108) is connected to the negative pressure end of the negative pressure suction device (1101).

6. The pressing apparatus for polarizer processing according to claim 1, characterized in that: The operating platform (1) has a through hole (14) inside, and a flexible sealing gasket (15) is provided inside the through hole (14). The flexible sealing gasket (15) is located on the upper side of the adhesive (1201).

7. The pressing apparatus for polarizer processing according to claim 1, characterized in that: The pressure application component (13) includes a first cylinder (1301), the output end of which is connected to a pressure cover plate (1302). The bottom of the pressure cover plate (1302) faces the through hole (14), and the cross-sectional dimension of the pressure cover plate (1302) is smaller than that of the through hole (14).

8. The pressing apparatus for polarizer processing according to claim 1, characterized in that: The adhesive (1201) has a drive shaft (1202) and a driven shaft (1203) at its two ends, and the adhesive (1201) is wound onto the driven shaft (1203).

9. The pressing apparatus for polarizer processing according to claim 1, characterized in that: The sealing plate (16) includes a limiting sleeve (1601). The limiting sleeve (1601) has a flexible sealing layer (1602) inside. When the pressing block (4) presses the polarizer, the limiting sleeve (1601) is located at the bottom opening of the fitting groove (6), and the flexible sealing layer (1602) seals the bottom opening of the fitting groove (6) to prevent external dust from passing through the fitting groove (6) and falling into the polarizer and liquid crystal glass, thus ensuring the sealing of the operating platform (1).

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