Processing device for processing ultrathin OCA (Optical Clear Adhesive)

Abstract

The utility model relates to the technical field of OCA (Optical Clear Adhesive) processing, and discloses a processing device for processing ultrathin OCA, which comprises front conveying mechanisms and rear conveying mechanisms, a plurality of front conveying mechanisms are arranged at intervals along the conveying direction of a main material, and a plurality of rear conveying mechanisms are arranged at intervals along the conveying direction of the main material. The front conveying mechanism comprises a supporting roller and an attaching roller, the supporting roller and the attaching roller are rotationally arranged, the attaching roller is located over the supporting roller, the rear conveying mechanism comprises a lower conveying roller and an upper conveying roller which are rotationally arranged, and a main material is conveyed to the rear conveying mechanism from the position between the supporting roller and the attaching roller and then conveyed to the tail end of the rear conveying mechanism through the upper conveying roller; and finally, the main materials are conveyed to the sheet discharging mechanism from the position between the upper conveying roller and the lower conveying roller and used for discharging the main materials in a U shape, and the sheet discharging mechanism comprises a sheet receiving box. And a linear process is changed into a U-shaped process, so that the extrusion bonding strength between the main material and the functional film is enhanced, and the problems of indentation, water ripples and the like are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of OCA optical adhesive processing, in particular to a processing device for processing ultra-thin OCA optical adhesive. Background Art

[0002] OCA optical adhesive film is a baseless double-sided adhesive tape made of OCA optical adhesive after curing. It has the characteristics of colorless transparency, high light transmittance, and high adhesive strength. OCA optical adhesive film can be used in different fields according to its thickness. At present, the production of OCA optical adhesive film adopts a linear process, that is, the main material is transported in a straight line, and other functional films are attached to the main material during the transportation process. The linear process cannot make the functional films fit together well, and it is easy to cause problems such as indentation and water ripples. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a processing device for processing ultra-thin OCA optical adhesive, which changes the linear process into a U-shaped process, strengthens the extrusion bonding strength between the main material and the functional film, and solves the problems of indentation, water ripples, etc.

[0004] The purpose of the utility model is achieved through the following technical solutions: a processing device for processing ultra-thin OCA optical glue, comprising a front conveying mechanism and a rear conveying mechanism, a sheet discharging mechanism is arranged between the front conveying mechanism and the rear conveying mechanism, a plurality of front conveying mechanisms are arranged at intervals along the conveying direction of the main material, the front conveying mechanism comprises a supporting roller and a bonding roller, the supporting roller and the bonding roller are both rotatably arranged, the bonding roller is located directly above the supporting roller, the rear conveying mechanism comprises a rotatably arranged lower conveying roller and an upper conveying roller, the main material is first conveyed from between the supporting roller and the bonding roller to the rear conveying mechanism, then conveyed to the end of the rear conveying mechanism through the upper conveying roller, and finally conveyed from between the upper conveying roller and the lower conveying roller to the sheet discharging mechanism, which is used to make the main material U-shaped, the sheet discharging mechanism comprises a splicing box, and the splicing box has the freedom to move along the vertical direction.

[0005] Furthermore, the front conveying mechanism also includes a U-shaped mounting frame, and the supporting roller and the bonding roller are both rotatably arranged in the U-shaped opening of the U-shaped mounting frame. The two ends of the supporting roller are rotatably connected to the U-shaped mounting frame through a rotating shaft, and the bonding roller has the freedom to move closer to or away from the supporting roller.

[0006] Furthermore, both ends of the laminating roller are rotatably connected with sliders, a vertical slide groove is provided on the inner wall of the U-shaped mouth of the U-shaped mounting frame corresponding to the position of the slider, the slider is slidably adapted in the vertical slide groove, and adjustment cylinders are installed at both ends of the top of the U-shaped mounting frame, and the telescopic shaft of the adjustment cylinder is inserted into the vertical slide groove to connect the slider.

[0007] Furthermore, a micrometer is vertically mounted on the bottom wall of the vertical slide groove, a measuring axis of the micrometer is connected to a contact block, and the contact block is located on the moving path of the slider.

[0008] Furthermore, a slicing mechanism is arranged between the sheet discharging mechanism and the rear conveying mechanism, and the slicing mechanism includes a pressure roller, a cutting roller and a knife frame, the cutting roller is fixedly mounted on the knife frame, the pressure roller is located directly above the cutting roller and is rotatably connected to the knife frame, a circular cutting knife is rotatably arranged in the cutting roller, a cutting edge is provided at the top of the cutting roller along its own axial direction, the circular cutting knife extends from the cutting edge, a cutting knife groove is provided at the bottom of the pressure roller along its own axial direction, the cutting knife groove is located directly above the cutting edge, and the circular cutting knife has the freedom to move along the axial direction of the cutting roller.

[0009] Furthermore, a driving cavity is provided in the cutting knife roller along its axial direction, a linear driving module is installed in the driving cavity, a knife seat is installed on the sliding seat of the linear driving module, the circular cutting knife is rotatably installed on the knife seat, a motor is installed on the side wall of the knife seat, and the output shaft of the motor is drivingly connected to the circular cutting knife.

[0010] Furthermore, the film discharging mechanism further comprises a lifting cylinder and a top plate, the lifting cylinder is vertically arranged, a telescopic shaft of the lifting cylinder is connected to the top plate, and the film splicing box is placed on the top plate.

[0011] Furthermore, a limiting groove is provided on the top of the top plate, and the splice box is adapted to fit into the limiting groove.

[0012] The beneficial effects of the utility model are:

[0013] The main material is conveyed between the supporting roller and the laminating roller, and other functional films are laminated on the main material in the front conveying mechanism section and conveyed to the rear conveying mechanism through extrusion laminating. On the rear conveying mechanism, it is first conveyed from the top of the upper conveying roller to between the upper conveying roller and the lower conveying roller, so that the OCA optical adhesive film is wound in a U shape, thus changing the linear process to a U-shaped process, strengthening the extrusion laminating strength between the main material and the functional film, and solving problems such as indentation and water ripples. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a conveying schematic diagram of a processing device for processing ultra-thin OCA optical adhesive according to the utility model;

[0015] Figure 2 It is a structural schematic diagram of a front conveying mechanism in a processing device for processing ultra-thin OCA optical adhesive of the utility model;

[0016] Figure 3This is a cross-sectional view of the cooperation between the pressing roller and the cutting roller in a processing device for processing ultra-thin OCA optical adhesive of the utility model;

[0017] In the figure, 1-support roller, 2-laminating roller, 3-lower conveying roller, 4-upper conveying roller, 5-film box, 6-U-shaped mounting frame, 7-slider, 8-vertical slide, 9-adjusting cylinder, 10-micrometer, 11-contact block, 12-pressure roller, 13-cutting roller, 14-knife holder, 15-circular cutting knife, 16-knife edge, 17-cutting knife groove, 18-driving chamber, 19-linear driving module, 20-knife holder, 21-motor, 22-lifting cylinder, 23-top plate, 24-limiting groove. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model is further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0019] like Figures 1 to 3 As shown, a processing device for processing ultra-thin OCA optical adhesive comprises a front conveying mechanism and a rear conveying mechanism, a sheet discharging mechanism is arranged between the front conveying mechanism and the rear conveying mechanism, a plurality of front conveying mechanisms are arranged at intervals along the conveying direction of the main material, the front conveying mechanism comprises a supporting roller 1 and a bonding roller 2, the supporting roller 1 and the bonding roller 2 are both rotatably arranged, the bonding roller 2 is located directly above the supporting roller 1, the rear conveying mechanism comprises a rotatably arranged lower conveying roller 3 and an upper conveying roller 4, the main material is firstly conveyed from between the supporting roller 1 and the bonding roller 2 to the rear conveying mechanism, then conveyed to the end of the rear conveying mechanism through the upper conveying roller 4, and finally conveyed from between the upper conveying roller 4 and the lower conveying roller 3 to the sheet discharging mechanism, so as to make the main material be U-shaped and discharged, the sheet discharging mechanism comprises a splicing box 5, the splicing box 5 has a vertically arranged The main material and the functional film are both lowered through the winding rack, and the main material is conveyed through the support roller 1 and the bonding roller 2 of the front conveying mechanism, and the main material is conveyed to the rear conveying mechanism, and the remaining functional films are bonded to the various places of the front conveying mechanism according to production needs, and the functional film is bonded to the main material through the extrusion of the support roller 1 and the bonding roller 2 to form the required OCA optical film, and the OCA optical film is conveyed to the rear conveying mechanism. In the rear conveying mechanism, the OCA optical film is first conveyed on the upper conveying roller 4, and then bypasses the upper conveying roller 4 at the end to enter between the upper conveying roller 4 and the lower conveying roller 3, forming a U-shaped processing technology, and the OCA optical film is squeezed into an arc by the upper conveying roller 4 at the end, so as to enhance the extrusion bonding strength and solve the problems of indentation and water ripples.

[0020] Furthermore, if Figure 1As shown, a slicing mechanism is arranged between the sheet discharging mechanism and the rear conveying mechanism, and the sheet discharging mechanism further comprises a lifting cylinder 22 and a top plate 23. The lifting cylinder 22 is arranged vertically, and the telescopic shaft of the lifting cylinder 22 is connected to the top plate 23. The splicing box 5 is placed on the top plate 23. The U-shaped process changes the sheet discharging direction, so that the sheet discharging position is between the front conveying mechanism and the rear conveying mechanism. The OCA optical adhesive film delivered to the end is cut into a specified size by the slicing mechanism, and the cut OCA optical adhesive film is received by the splicing box 5. The height of the splicing box 5 is adjusted by the lifting cylinder 22 to keep the receiving position unchanged, so as to ensure that the OCA optical adhesive film can stably fall into the splicing box 5. Preferably, a limiting groove 24 is provided on the top of the top plate 23, and the splicing box 5 is adapted to fit in the limiting groove 24. The splicing box 5 is limited by the limiting groove 24 to prevent the splicing box 5 from being offset and affecting the collection of the OCA optical adhesive film.

[0021] Furthermore, if Figure 1 and Figure 3 As shown, the slicing mechanism includes a pressure roller 12, a cutting roller 13 and a knife frame 14. The cutting roller 13 is fixedly installed on the knife frame 14. The pressure roller 12 is located directly above the cutting roller 13 and is rotatably connected to the knife frame 14. A circular cutting knife 15 is rotatably arranged in the cutting roller 13. A cutting edge 16 is provided at the top of the cutting roller 13 along its own axial direction. The circular cutting knife 15 extends from the cutting edge 16. A cutting knife groove 17 is provided at the bottom of the pressure roller 12 along its own axial direction. The cutting knife groove 17 is located directly above the cutting edge 16. The circular cutting knife 15 has the freedom to move along the axial direction of the cutting roller 13. A driving cavity 18 is provided in the cutting roller 13 along its own axial direction. A linear driving module 19 is installed in the driving cavity 18. A knife holder 20 is installed on the slide seat of the linear drive module 19, and the circular cutter 15 is rotatably installed on the knife holder 20. A motor 21 is installed on the side wall of the knife holder 20. The output shaft of the motor 21 is connected to the circular cutter 15. The circular cutter 15 is initially located on one side of the OCA optical film. When cutting, the conveying of the OCA optical film is stopped, and the motor 21 drives the circular cutter 15 to rotate. The circular cutter 15 extends from the blade 16 and acts in the cutting groove 17. The circular cutter 15 is driven by the linear drive module 19 to move from one side of the OCA optical film to the other side, thereby cutting the OCA optical film. The cut OCA optical film falls into the splicing box 5 to complete the film output.

[0022] Furthermore, if Figure 1 and Figure 2As shown, the front conveying mechanism also includes a U-shaped mounting frame 6, and the supporting roller 1 and the bonding roller 2 are both rotatably arranged in the U-shaped mouth of the U-shaped mounting frame 6. The two ends of the supporting roller 1 are rotatably connected to the U-shaped mounting frame 6 through a rotating shaft. The bonding roller 2 has the freedom to move close to or away from the supporting roller 1, and the two ends of the bonding roller 2 are rotatably connected with sliders 7. The inner wall of the U-shaped mouth of the U-shaped mounting frame 6 is provided with a vertical slide groove 8 corresponding to the position of the slider 7. The slider 7 is slidably adapted in the vertical slide groove 8. Adjustment cylinders 9 are installed at both ends of the top of the U-shaped mounting frame 6. The telescopic shaft of the adjustment cylinder 9 penetrates into the vertical slide groove 8 to connect the slider 7. The slider 7 is driven up and down by the telescopic adjustment of the adjustment cylinder 9, and the slider 7 drives the bonding roller 2 to move up and down, so as to adjust the gap between the supporting roller 1 and the bonding roller 2 to adapt to the bonding of functional films of different thicknesses.

[0023] Furthermore, if Figure 2 As shown, a micrometer 10 is vertically installed on the bottom wall of the vertical slide 8, and a contact block 11 is connected to the measuring axis of the micrometer 10. The contact block 11 is located on the moving path of the slider 7. Since the thickness of the functional film is very thin, the moving accuracy of the bonding roller 2 is required to be high. The micrometer 10 can accurately control the movement of the bonding roller 2. Before production, the position of the bonding roller 2 is adjusted according to the model of the produced OCA, first until the bonding roller 2 contacts the supporting roller 1, and then the micrometer 10 is adjusted to make the contact block 11 connected to the micrometer 10 contact the slider 7, and then the cylinder 9 is adjusted to drive the bonding roller 2 to move up, and then the micrometer 10 drives the contact block 11 to move up a certain distance, which is the gap between the supporting roller 1 and the bonding roller 2 that needs to be adjusted, and finally the cylinder 9 is adjusted to drive the bonding roller 2 to move downward until the slider 7 and the contact block 11 are abutted and the cylinder 9 is adjusted to stop moving, indicating that the bonding roller 2 has moved into place, and the micrometer 10 has a high accuracy, so that the bonding roller 2 has a high moving accuracy.

Claims

1. A processing device for processing ultra-thin OCA optical adhesive, characterized in that: The invention comprises a front conveying mechanism and a rear conveying mechanism, a sheet discharging mechanism is arranged between the front conveying mechanism and the rear conveying mechanism, a plurality of front conveying mechanisms are arranged at intervals along the conveying direction of the main material, the front conveying mechanism comprises a support roller (1) and a laminating roller (2), the support roller (1) and the laminating roller (2) are both rotatably arranged, the laminating roller (2) is located directly above the support roller (1), the rear conveying mechanism comprises a rotatably arranged lower conveying roller (3) and an upper conveying roller (4), the main material is firstly conveyed from between the support roller (1) and the laminating roller (2) to the rear conveying mechanism, then conveyed to the end of the rear conveying mechanism through the upper conveying roller (4), and finally conveyed from between the upper conveying roller (4) and the lower conveying roller (3) to the sheet discharging mechanism, so as to make the main material be discharged in a U-shaped manner, the sheet discharging mechanism comprises a sheet splicing box (5), and the sheet splicing box (5) has the degree of freedom to move in the vertical direction.

2. The processing device for processing ultra-thin OCA optical adhesive according to claim 1, characterized in that: The front conveying mechanism also includes a U-shaped mounting frame (6), the support roller (1) and the laminating roller (2) are both rotatably arranged in a U-shaped opening of the U-shaped mounting frame (6), the two ends of the support roller (1) are rotatably connected to the U-shaped mounting frame (6) via a rotating shaft, and the laminating roller (2) has the freedom to move closer to or away from the support roller (1).

3. The processing device for processing ultra-thin OCA optical adhesive according to claim 2, characterized in that: Both ends of the laminating roller (2) are rotatably connected to sliders (7); a vertical slide groove (8) is provided on the inner wall of the U-shaped opening of the U-shaped mounting frame (6) at a position corresponding to the slider (7); the slider (7) is slidably adapted in the vertical slide groove (8); and adjustment cylinders (9) are installed at both ends of the top of the U-shaped mounting frame (6); the telescopic shaft of the adjustment cylinder (9) penetrates into the vertical slide groove (8) to connect with the slider (7).

4. The processing device for processing ultra-thin OCA optical adhesive according to claim 3, characterized in that: A micrometer (10) is vertically mounted on the bottom wall of the vertical slide groove (8); a measuring axis of the micrometer (10) is connected to a contact block (11); and the contact block (11) is located on the moving path of the slider (7).

5. The processing device for processing ultra-thin OCA optical adhesive according to claim 1, characterized in that: A slicing mechanism is arranged between the sheet discharging mechanism and the rear conveying mechanism, the slicing mechanism comprising a pressure roller (12), a cutting roller (13) and a knife frame (14); the cutting roller (13) is fixedly mounted on the knife frame (14); the pressure roller (12) is located directly above the cutting roller (13) and is rotatably connected to the knife frame (14); a circular cutting knife (15) is rotatably arranged inside the cutting roller (13); a cutting edge (16) is provided at the top of the cutting roller (13) along its own axial direction; the circular cutting knife (15) extends from the cutting edge (16); a cutting knife groove (17) is provided at the bottom of the pressure roller (12) along its own axial direction; the cutting knife groove (17) is located directly above the cutting edge (16); and the circular cutting knife (15) has the freedom to move along the axial direction of the cutting roller (13).

6. The processing device for processing ultra-thin OCA optical adhesive according to claim 5, characterized in that: The cutting knife roller (13) is provided with a driving cavity (18) along its axial direction, a linear driving module (19) is installed in the driving cavity (18), a knife seat (20) is installed on the sliding seat of the linear driving module (19), the circular cutting knife (15) is rotatably mounted on the knife seat (20), a motor (21) is installed on the side wall of the knife seat (20), and the output shaft of the motor (21) is drivingly connected to the circular cutting knife (15).

7. The processing device for processing ultra-thin OCA optical adhesive according to claim 1, characterized in that: The film discharging mechanism further comprises a lifting cylinder (22) and a top plate (23); the lifting cylinder (22) is arranged vertically; a telescopic shaft of the lifting cylinder (22) is connected to the top plate (23); and the film splicing box (5) is placed on the top plate (23).

8. The processing device for processing ultra-thin OCA optical adhesive according to claim 7, characterized in that: A limiting groove (24) is provided on the top of the top plate (23), and the splicing box (5) is adapted to fit into the limiting groove (24).

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