Positioning device for OCA optical film punching

Abstract

The utility model discloses a positioning device for OCA optical film punching, which relates to the technical field of OCA optical film processing and comprises a processing box, positioning plates are arranged at four corners of the top end of the processing box, and a pair of fixed mounting frames are fixedly mounted on the outer side walls of two ends of the processing box correspondingly. A plurality of fixing rods are evenly and fixedly installed in the processing box at equal intervals, the sealing plate slidably sleeves the fixing rods, a plurality of fixing magnets are evenly and fixedly installed at the top end in the processing box at equal intervals, and a plurality of fixing electromagnets are evenly embedded in the top ends of the fixing rods at equal intervals. By arranging the sealing mechanism, after the OCA optical film is processed, the fixed electromagnets are powered off, the fixed electromagnets attract each other, the top surface of the sealing plate is attached to the inner top surface of the processing box under the counter-acting force of the functional spring, the air passing holes are sealed, and the processed OCA optical film can be taken down conveniently.

Description

Technical Field

[0001] This utility model relates to the field of OCA optical film processing technology, and in particular to a positioning device for drilling holes in OCA optical films. Background Technology

[0002] OCA (Optically Clear Adhesive) optical film is an important material used in optical devices such as touchscreens. In some applications, drilling is required in the OCA optical film, and a precise positioning device is crucial to ensuring drilling quality. This positioning device ensures the positional accuracy of the drilling, improving product yield.

[0003] Existing methods for stabilizing OCA optical films during drilling rely on vacuum adsorption. This method utilizes numerous tiny pores on the processing platform surface. When the vacuum system is activated, the OCA optical film adheres tightly to the platform. However, removing the processed OCA optical film requires shutting down the vacuum system, which is then repeatedly turned on and off, reducing its lifespan and taking considerable time. Therefore, a positioning device for drilling OCA optical films is needed. Utility Model Content

[0004] The purpose of this invention is to solve the problem that in the existing technology, when removing the processed OCA optical film, it is necessary to shut down the vacuum system and then turn it back on, repeating this process repeatedly, which reduces the lifespan of the vacuum system and takes a long time. Therefore, this invention proposes a positioning device for drilling holes in OCA optical films.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A positioning device for drilling OCA optical films includes a processing box, positioning plates at the four corners of the top of the processing box, an adsorption mechanism inside the processing box, several air holes evenly spaced at the top of the processing box, a sealing mechanism inside the processing box, a pair of fixed mounting brackets fixedly installed on the outer walls at both ends of the processing box, each of the pair of fixed mounting brackets having a fixing mechanism, and a tensioning mechanism at one end of the processing box. The sealing mechanism includes a sealing plate movably disposed inside the processing box, several fixed rods evenly spaced and fixedly installed inside the processing box, the sealing plate slidingly sleeved on the fixed rods, several fixed magnets evenly spaced and fixedly installed at the top of the processing box, several fixed electromagnets evenly spaced and embedded at the top of the fixed rods, and several functional springs sleeved on each fixed rod. The functional springs are elastically connected between the bottom surface of the sealing plate and the bottom surface inside the processing box, and the fixed electromagnets repel each other when energized.

[0007] Preferably, a plurality of the air passages are disposed within a plurality of fixed rods, fixed magnets and fixed electromagnets, with the fixed magnets and fixed electromagnets corresponding one-to-one, and the fixed electromagnets attracting each other when the power is off;

[0008] This device is used to seal several air vents, facilitating the removal of the processed OCA optical film from the processing box. When the OCA optical film is attached to the surface of the processing box, the fixing electromagnet is energized, causing the fixing electromagnet and the fixing magnet to repel each other, separating the top surface of the sealing plate from the top surface inside the processing box. This compresses the functional spring, allowing the adsorption mechanism to adsorb the OCA optical film for subsequent processing. After the OCA optical film processing is completed, the fixing electromagnet is de-energized, causing the fixing electromagnet and the fixing magnet to attract each other. Under the reaction force of the functional spring, the top surface of the sealing plate adheres to the top surface inside the processing box, thus sealing the air vents and facilitating the removal of the processed OCA optical film.

[0009] Preferably, the adsorption mechanism includes a fixedly installed air pump, an air outlet hopper connected to the center of the bottom of the processing box, an air pump connected to an air supply pipe, the other end of the air supply pipe connected to the air outlet hopper, and the air pump connected to an air outlet pipe.

[0010] Used to adsorb OCA optical film on the processing box, the air pump is started, and the air in the processing box is discharged through the air outlet, air supply pipe and air outlet pipe. Under the action of air pressure, the OCA optical film is adsorbed.

[0011] Preferably, the fixing mechanism includes a movable pressure plate, which is movably disposed within a fixed mounting frame. An anti-slip pad is fixedly installed at the bottom of the fixed mounting frame. A positioning plate is fixedly connected to the movable pressure plate on the side near the center of the processing box. A driving assembly is disposed above the movable pressure plate.

[0012] Preferably, the drive assembly includes a bidirectional threaded rod rotatably mounted in a fixed mounting bracket, with reverse threads symmetrically arranged at both ends of the bidirectional threaded rod, and screw blocks symmetrically threaded at both ends of the bidirectional threaded rod. A pair of fixed blocks are fixedly mounted on the top of the movable pressure plate, and a sliding rod is fixedly mounted between the pair of fixed blocks. A pair of sliding sleeve blocks are sleeved on the sliding rod, and a rotating rod is rotatably mounted on the top of the sliding sleeve block. The other end of the rotating rod is rotatably connected to the bottom end of the screw block.

[0013] Preferably, a pair of rotating rods are staggered and rotatably connected to each other. Several limiting rods are fixedly installed inside the fixed mounting frame. The lead screw block is slidably sleeved on the limiting rods. A forward and reverse motor is fixedly installed on the outer wall of the fixed mounting frame. The output shaft of the forward and reverse motor is coaxially fixedly connected to the bidirectional threaded rod.

[0014] Used to fix the OCA optical film on the processing box, the forward and reverse motors away from the tensioning mechanism are started. The forward and reverse motors drive the bidirectional threaded rod to rotate, and the lead screw blocks on the bidirectional threaded rod move closer to each other. The lead screw blocks drive a pair of sliding sleeve blocks to move closer to each other through the rotating rod, so that the movable pressure plate moves downward and puts the anti-slip pad into contact with the surface of the OCA optical film. Another forward and reverse motor is started to put another anti-slip pad into contact with the surface of the OCA optical film, thus fixing both ends of the OCA optical film, which facilitates subsequent processing.

[0015] Preferably, the tensioning mechanism is fixedly installed in a fixed box at one end of the processing box. A movable frame is fixedly installed at the top of the fixed box. A guide roller is rotatably installed inside the movable frame. A limit plate is movably arranged inside the fixed box. Several movable rods are fixedly installed at the top of the limit plate. The movable rods slide through the top of the fixed box. The top of the movable rods is fixedly connected to the bottom of the movable frame. Several compression springs are elastically connected between the limit plate and the bottom of the fixed box.

[0016] Used to adjust the tension of the OCA optical film. When fixing the OCA optical film near the fixed box, the OCA optical film drives the guide roller and the movable frame to move down, so that the movable rod and the limiting plate compress the compression spring. Under the reaction force of the compression spring, the OCA optical film is always in a taut state, so as to avoid wrinkles in the OCA optical film during fixing.

[0017] This utility model has the following beneficial effects:

[0018] 1. By setting up a sealing mechanism, when the OCA optical film is attached to the surface of the processing box, the fixing electromagnet is energized, causing the fixing electromagnet and the fixing magnet to repel each other, thus separating the top surface of the sealing plate from the top surface inside the processing box. This compresses the functional spring, facilitating the adsorption mechanism to adsorb the OCA optical film and making subsequent processing easier. After the OCA optical film processing is completed, the fixing electromagnet is de-energized, and the fixing electromagnet and the fixing magnet attract each other. Under the reaction force of the functional spring, the top surface of the sealing plate adheres to the top surface inside the processing box, sealing several air holes and facilitating the removal of the processed OCA optical film.

[0019] 2. By setting up a fixing mechanism, start the forward and reverse motors away from the tensioning mechanism. The forward and reverse motors drive the bidirectional threaded rod to rotate, and the lead screw blocks on the bidirectional threaded rod move closer to each other. The lead screw blocks drive a pair of sliding sleeve blocks to move closer to each other through the rotating rod, so that the movable pressure plate moves downward and puts the anti-slip pad into contact with the surface of the OCA optical film. Start another forward and reverse motor to put another anti-slip pad into contact with the surface of the OCA optical film, thereby fixing both ends of the OCA optical film, which facilitates subsequent processing. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of a positioning device for perforating an OCA optical film according to the present invention.

[0021] Figure 2 This is a schematic diagram of the internal structure of the processing box of this utility model;

[0022] Figure 3 This is a schematic diagram of the fixing mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the tensioning mechanism of this utility model.

[0024] In the diagram: 1. Processing box; 2. Positioning plate; 3. Adsorption mechanism; 31. Air pump; 32. Air outlet hopper; 33. Air supply pipe; 34. Air outlet pipe; 4. Air passage hole; 5. Sealing mechanism; 51. Sealing plate; 52. Fixing rod; 53. Fixing magnet; 54. Fixing electromagnet; 55. Functional spring; 6. Fixed mounting bracket; 7. Fixing mechanism; 71. Movable pressure plate; 72. Anti-slip pad; 73. Drive assembly; 731. Bidirectional threaded rod; 732. Lead screw block; 733. Fixing block; 734. Sliding rod; 735. Sliding sleeve block; 736. Rotating rod; 737. Limiting rod; 738. Forward and reverse motor; 8. Tensioning mechanism; 81. Fixed box; 82. Movable frame; 83. Guide roller; 84. Limiting plate; 85. Movable rod; 86. Compression spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Reference Figure 1-4A positioning device for perforating OCA optical film includes a processing box 1, positioning plates 2 at the four corners of the top of the processing box 1, an adsorption mechanism 3 inside the processing box 1, several air holes 4 evenly spaced at the top of the processing box 1, a sealing mechanism 5 inside the processing box 1, a pair of fixed mounting brackets 6 fixedly installed on the outer walls of both ends of the processing box 1, each of the pair of fixed mounting brackets 6 having a fixing mechanism 7, a tensioning mechanism 8 at one end of the processing box 1, the sealing mechanism 5 including a sealing plate 51 movably disposed inside the processing box 1, several fixed rods 52 evenly fixedly installed at equal intervals inside the processing box 1, the sealing plate 51 slidingly sleeved on the fixed rods 52, several fixed magnets 53 evenly fixedly installed at equal intervals at the top of the processing box 1, several fixed electromagnets 54 evenly embedded at equal intervals at the top of the fixed rods 52, several functional springs 55 sleeved on each of the fixed rods 52, the functional springs 55 elastically connected between the bottom surface of the sealing plate 51 and the bottom surface of the processing box 1, the fixed electromagnets 54 repelling each other when energized.

[0028] Several air holes 4 are set inside several fixed rods 52, fixed magnets 53 and fixed electromagnets 54. Fixed magnets 53 and fixed electromagnets 54 correspond one-to-one. When the fixed electromagnets 54 are de-energized, they attract each other with the fixed magnets 53.

[0029] The adsorption mechanism 3 includes a fixedly installed air pump 31, an air outlet 32 ​​connected to the center of the bottom of the processing box 1, an air supply pipe 33 connected to the air pump 31, the other end of the air supply pipe 33 connected to the air outlet 32, and an air outlet pipe 34 connected to the air pump 31.

[0030] The fixing mechanism 7 includes a movable pressure plate 71, which is movably disposed within the fixed mounting frame 6. An anti-slip pad 72 is fixedly installed at the bottom of the fixed mounting frame 6. The positioning plate 2 is fixedly connected to the movable pressure plate 71 on the side near the center of the processing box 1. A drive assembly 73 is provided above the movable pressure plate 71.

[0031] The drive assembly 73 includes a bidirectional threaded rod 731 rotatably mounted in the fixed mounting bracket 6. The bidirectional threaded rod 731 has symmetrical reverse threads at both ends. The two ends of the bidirectional threaded rod 731 are symmetrically threaded with lead screw blocks 732. A pair of fixed blocks 733 are fixedly mounted on the top of the movable pressure plate 71. A sliding rod 734 is fixedly mounted between the pair of fixed blocks 733. A pair of sliding sleeve blocks 735 are mounted on the sliding rod 734. A rotating rod 736 is rotatably mounted on the top of the sliding sleeve block 735. The other end of the rotating rod 736 is rotatably connected to the bottom end of the lead screw block 732.

[0032] A pair of rotating rods 736 are staggered and rotatably connected. Several limiting rods 737 are fixedly installed inside the fixed mounting bracket 6. The lead screw block 732 is slidably sleeved on the limiting rods 737. A forward and reverse motor 738 is fixedly installed on the outer wall of the fixed mounting bracket 6. The output shaft of the forward and reverse motor 738 is coaxially fixedly connected to the bidirectional threaded rod 731.

[0033] The tensioning mechanism 8 is fixedly installed in a fixed box 81 at one end of the processing box 1. A movable frame 82 is fixedly installed at the top of the fixed box 81. A guide roller 83 is rotatably installed inside the movable frame 82. A limit plate 84 is movably installed inside the fixed box 81. Several movable rods 85 are fixedly installed at the top of the limit plate 84. The movable rods 85 slide through the top of the fixed box 81. The top of the movable rods 85 is fixedly connected to the bottom of the movable frame 82. Several compression springs 86 are elastically connected between the limit plate 84 and the bottom of the fixed box 81.

[0034] In this invention, the OCA optical film passes through the upper surface of the guide roller 83, thereby passing under a pair of movable pressure plates 71. The forward / reverse motor 738, located away from the tensioning mechanism 8, is activated. The forward / reverse motor 738 drives the bidirectional threaded rod 731 to rotate, causing the lead screw blocks 732 on the bidirectional threaded rod 731 to move closer together. The lead screw blocks 732, through the rotating rod 736, drive a pair of sliding sleeve blocks 735 to move closer together, causing the movable pressure plate 71 to move downwards, bringing the anti-slip pad 72 into contact with the surface of the OCA optical film. Another forward / reverse motor 738 is then activated, bringing another anti-slip pad 72 into contact with the surface of the OCA optical film, thus fixing both ends of the OCA optical film. The vacuum pump 31 is then activated, and the air inside the processing chamber 1 is exhausted through the air outlet 32, air supply pipe 33, and air outlet pipe 34. Under the action of air pressure, the OCA optical film is adsorbed. When the OCA optical film is attached to the surface of the processing box 1, the fixed electromagnet 54 is energized, causing the fixed electromagnet 54 and the fixed magnet 53 to repel each other, causing the top surface of the sealing plate 51 to separate from the inner top surface of the processing box 1, and compressing the functional spring 55 to facilitate the adsorption of the OCA optical film. During the processing, the OCA optical film is positioned by the position of the positioning plate 2. After the processing is completed, the fixed electromagnet 54 is de-energized, and the fixed electromagnet 54 and the fixed magnet 53 attract each other. Under the reaction force of the functional spring 55, the top surface of the sealing plate 51 is attached to the inner top surface of the processing box 1, thereby sealing several air holes 4 and facilitating the removal of the processed OCA optical film.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A positioning device for drilling OCA optical films, comprising a processing box (1), positioning plates (2) provided at the four corners of the top of the processing box (1), an adsorption mechanism (3) provided inside the processing box (1), a plurality of air holes (4) equidistantly opened at the top of the processing box (1), a sealing mechanism (5) provided inside the processing box (1), a pair of fixed mounting brackets (6) fixedly installed on the outer walls of both ends of the processing box (1), each of the pair of fixed mounting brackets (6) being provided with a fixing mechanism (7), and a tensioning mechanism (8) provided at one end of the processing box (1), characterized in that: The closing mechanism (5) includes a closing plate (51) movably disposed inside the processing box (1). Several fixed rods (52) are fixedly installed at equal intervals inside the processing box (1). The closing plate (51) is slidably sleeved on the fixed rods (52). Several fixed magnets (53) are fixedly installed at equal intervals at the top of the processing box (1). Several fixed electromagnets (54) are embedded at equal intervals at the top of the fixed rods (52). Several functional springs (55) are sleeved on the fixed rods (52). The functional springs (55) are elastically connected between the bottom surface of the closing plate (51) and the bottom surface of the processing box (1). When the fixed electromagnets (54) are energized, they repel each other from the fixed magnets (53).

2. The positioning device for drilling holes in an OCA optical film according to claim 1, characterized in that: Several air passages (4) are arranged in several fixed rods (52), fixed magnets (53) and fixed electromagnets (54). The fixed magnets (53) and fixed electromagnets (54) correspond one to one. When the fixed electromagnets (54) are de-energized, they attract each other to the fixed magnets (53).

3. The positioning device for drilling holes in an OCA optical film according to claim 1, characterized in that: The adsorption mechanism (3) includes a fixedly installed air pump (31), an air outlet hopper (32) connected to the center of the bottom of the processing box (1), an air pump (31) connected to an air supply pipe (33), the other end of the air supply pipe (33) connected to the air outlet hopper (32), and an air pump (31) connected to an air outlet pipe (34).

4. The positioning device for drilling holes in an OCA optical film according to claim 1, characterized in that: The fixing mechanism (7) includes a movable pressure plate (71), which is movably installed in the fixed mounting frame (6). The bottom end of the fixed mounting frame (6) is fixedly installed with an anti-slip pad (72). The positioning plate (2) is fixedly connected to the movable pressure plate (71) on the side near the center of the processing box (1). A drive assembly (73) is provided above the movable pressure plate (71).

5. The positioning device for drilling holes in an OCA optical film according to claim 4, characterized in that: The drive assembly (73) includes a bidirectional threaded rod (731) rotatably mounted in a fixed mounting bracket (6). The bidirectional threaded rod (731) has symmetrical reverse threads at both ends. The bidirectional threaded rod (731) has screw blocks (732) symmetrically threaded at both ends. A pair of fixed blocks (733) are fixedly mounted on the top of the movable pressure plate (71). A sliding rod (734) is fixedly mounted between the pair of fixed blocks (733). A pair of sliding sleeve blocks (735) are mounted on the sliding rod (734). A rotating rod (736) is rotatably mounted on the top of the sliding sleeve block (735). The other end of the rotating rod (736) is rotatably connected to the bottom end of the screw block (732).

6. The positioning device for drilling holes in an OCA optical film according to claim 5, characterized in that: A pair of rotating rods (736) are staggered and rotatably connected. Several limiting rods (737) are fixedly installed inside the fixed mounting bracket (6). The lead screw block (732) is slidably sleeved on the limiting rod (737). A forward and reverse motor (738) is fixedly installed on the outer wall of the fixed mounting bracket (6). The output shaft of the forward and reverse motor (738) is coaxially fixedly connected to the bidirectional threaded rod (731).

7. The positioning device for drilling holes in an OCA optical film according to claim 1, characterized in that: The tensioning mechanism (8) is fixedly installed in a fixed box (81) at one end of the processing box (1). A movable frame (82) is fixedly installed at the top of the fixed box (81). A guide roller (83) is rotatably installed inside the movable frame (82). A limit plate (84) is movably installed inside the fixed box (81). Several movable rods (85) are fixedly installed at the top of the limit plate (84). The movable rods (85) slide through the top of the fixed box (81). The top of the movable rods (85) is fixedly connected to the bottom of the movable frame (82). Several compression springs (86) are elastically connected between the limit plate (84) and the bottom of the fixed box (81).

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