An anti-sticking knife device for slitting OCA optical adhesive

Abstract

This invention relates to the field of optical adhesive slitting equipment, specifically disclosing an anti-sticking device for slitting OCA optical adhesive. The device includes a gantry frame, with a first and second rotating shaft rotatably connected between the two arms of the gantry frame. A plurality of circular cutters are arranged at intervals on the first rotating shaft. The second rotating shaft is located below the first rotating shaft and has a plurality of cleaning discs arranged at intervals on it. Each cleaning disc has an annular mounting groove. The edges of the circular cutters are respectively positioned within the mounting grooves, and sponge rings are fitted into the mounting grooves. The outer circumference of the sponge rings has cleaning grooves corresponding to the shapes of the circular cutter edges, with the edges of the circular cutters abutting against the cleaning grooves. A silicone oil box with a top opening is fixed between the two arms of the gantry frame. The lower parts of the cleaning discs are all located within the silicone oil box. The first and second rotating shafts are connected by a drive mechanism. A motor driving the second rotating shaft is mounted on one arm of the gantry frame. This invention has an ingenious structure and can effectively prevent the circular cutters from sticking.

Description

Technical Field

[0001] This invention relates to the field of eyeglass preservation technology, and more particularly to an anti-sticking knife device for cutting OCA optical adhesive. Background Technology

[0002] Optical Electron Adhesive (OCA) is a clean, highly transparent, substrate-free double-sided adhesive tape with excellent transparency, boasting a light transmittance of over 99%. It remains undamaged even under strong light, high temperature, and high humidity conditions. Suitable for bonding plastic materials such as polycarbonate, it is currently primarily used for bonding touchscreen substrates (capacitive and resistive screens) to the front panel. Widely used in smartphones, handwriting computers, and touchscreen multimedia devices, it enjoys a broad market.

[0003] During the operation of the slitting equipment, adhesion between the slitting blade and the cut surface of the OCA optical adhesive can cause OCA optical adhesive to overflow, resulting in rough edges of the OCA optical adhesive and affecting product quality. Summary of the Invention

[0004] To address the problems mentioned in the background art, the present invention aims to provide an anti-sticking knife device for slitting OCA optical adhesive.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] An anti-sticking knife device for slitting OCA optical adhesive includes a gantry frame. A first rotating shaft is rotatably connected between the two arms of the gantry frame. A plurality of circular cutters are arranged at intervals on the first rotating shaft. A second rotating shaft is rotatably connected between the two arms of the gantry frame and is located below the first rotating shaft. A plurality of cleaning discs are arranged at intervals on the second rotating shaft. The outer circumferential surface of the cleaning discs has annular mounting grooves. The edges of the circular cutters are respectively set in the mounting grooves. A sponge ring is fitted into the mounting groove. The outer circumferential surface of the sponge ring has cleaning grooves corresponding to the shape of the circular cutter edges. The edges of the circular cutters abut against the cleaning grooves. A silicone oil box with a top opening is fixed between the two arms of the gantry frame. The lower parts of the plurality of cleaning discs are all located in the silicone oil box. A first pulley is fixedly connected to the end of the first rotating shaft. A second pulley is fixedly connected to the end of the second rotating shaft. The first pulley and the second pulley are connected by a transmission belt. A motor is mounted on one arm of the gantry frame, and the output shaft of the motor is fixedly connected to the second rotating shaft.

[0007] Furthermore, the top of the silicone oil box is detachably connected to a splash guard, which covers several cleaning discs inside. The splash guard has several slots for several circular cutters to pass through, and the edges of the circular cutters are respectively set in the slots. The circular cutters and the slots are fitted with a clearance. The upper part of the silicone oil box is provided with a liquid injection port, and a sealing cap is threaded onto the liquid injection port.

[0008] Furthermore, several swing arms are hinged to one side of the silicone oil box. The swing arms are fixed to the silicone oil box by pins. The ends of the swing arms are fixed to mounting boxes. Several mounting boxes are respectively set on one side of several circular cutters in the horizontal direction. The mounting boxes are open on the side facing the circular cutter. A sponge block is inserted inside the mounting box. The upper and lower sides of the mounting box are provided with slots for the circular cutter to pass through. The sponge block has a notch corresponding to the shape of the edge of the circular cutter. The edge of the circular cutter abuts in the notch.

[0009] Furthermore, a cylinder is vertically installed on the top of the gantry frame, with the piston rod of the cylinder facing downwards. A lifting plate is fixedly connected to the end of the piston rod of the cylinder, and two pairs of connecting arms are fixedly connected to the bottom of the lifting plate. A pressure roller is rotatably connected between each pair of connecting arms, and the two pressure rollers are located on both sides of the circular cutter.

[0010] The beneficial effects of this invention are as follows: When in use, the anti-stick silicone oil is put into the silicone oil box. After the motor is turned on, both the circular cutter and the cleaning disc rotate. The rotation of the cleaning disc can ensure that the sponge ring is always adsorbed with anti-stick silicone oil. Since the sponge ring is in contact with the circular cutter, the anti-stick silicone oil can be continuously coated on the circular cutter, effectively preventing the circular cutter from sticking to the cut surface of the OCA optical adhesive. Attached Figure Description

[0011] Figure 1 This is an isometric view of an embodiment of the present invention;

[0012] Figure 2 This is an isometric view of another embodiment of the present invention;

[0013] Figure 3 This is a partial sectional view from the front of an embodiment of the present invention;

[0014] Figure 4 This is a schematic diagram of the connection structure of the swing arm, mounting box, and sponge block in an embodiment of the present invention.

[0015] Explanation of the attached diagram numbers: 1. Gantry frame, 2. First rotating shaft, 21. First pulley, 3. Circular cutter, 4. Second rotating shaft, 41. Second pulley, 5. Cleaning disc, 51. Mounting groove, 6. Sponge ring, 61. Cleaning groove, 7. Silicone oil box, 71. Injection port, 72. Sealing cover, 73. Limiting block, 74. Pin, 8. Motor, 9. Splash cover, 91. Strip opening, 10. Swing arm, 101. Mounting box, 102. Groove, 110. Sponge block, 111. Notch, 120. Cylinder, 130. Lifting plate, 131. Connecting arm, 132. Pressure roller. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the protection scope of the present invention.

[0017] like Figures 1-4 As shown, an anti-sticking knife device for slitting OCA optical adhesive includes a gantry frame 1. A first rotating shaft 2 is rotatably connected between the two arms of the gantry frame 1. Five circular cutters 3 are fixedly connected to the first rotating shaft 2 and arranged at intervals. A second rotating shaft 4 is rotatably connected between the two arms of the gantry frame 1 and is located below the first rotating shaft 2. Five cleaning discs 5 are fixedly sleeved on the second rotating shaft 4. The five cleaning discs 5 correspond one-to-one with the five circular cutters 3. An annular mounting groove 51 is formed on the outer circumferential surface of the cleaning disc 5. The edge of the circular cutter 3 is disposed within the mounting groove 51. A sponge ring 6 is attached to the gantry frame 1. The outer circumference of the sponge ring 6 has a cleaning groove 61 that corresponds to the edge shape of the circular cutter 3. The edge of the circular cutter 3 abuts against the cleaning groove 61. A silicone oil box 7 with a top opening is fixed between the two arms of the gantry frame 1. The lower half of the five cleaning discs 5 are all located in the silicone oil box 7. A first pulley 21 is fixed to the end of the first rotating shaft 2, and a second pulley 41 is fixed to the end of the second rotating shaft 4. The first pulley 21 and the second pulley 41 are connected by a transmission belt. A motor 8 is installed on the right arm of the gantry frame 1. The output shaft of the motor 8 is fixedly connected to the second rotating shaft 4 through a coupling.

[0018] In this embodiment, the top of the silicone oil box 7 is connected to a splash guard 9 by screws. The splash guard 9 covers the five cleaning discs 5 inside. The splash guard 9 has five strip-shaped openings 91 for the five circular cutters 3 to pass through. The edges of the five circular cutters 3 are respectively set in the five strip-shaped openings 91. The circular cutters 3 and the strip-shaped openings 91 are fitted with a clearance. The upper part of the silicone oil box 7 is provided with an injection port 71. A sealing cap 72 is threadedly connected to the injection port 71. The addition of the splash guard 9 prevents the silicone oil from being spilled when the cleaning discs 5 rotate.

[0019] In this embodiment, five swing arms 10 are hinged to the front side of the silicone oil box 7. Five limiting blocks 73 are provided on the silicone oil box 7 corresponding to the five swing arms 10. The swing arms 10 are fixed to the limiting blocks 73 by pins 74. The swing arms 10 are vertically arranged. The top of the swing arms 10 is fixed to the mounting box 101. The five mounting boxes 101 are respectively provided on the front side of the five circular cutters 3. The mounting box 101 has an opening on the side facing the circular cutter 3. A sponge block 110 is inserted inside the mounting box 101. The upper and lower sides of the mounting box 101 are provided with slots 102 for the circular cutter 3 to pass through. The sponge block 110 has a notch 111 corresponding to the edge shape of the circular cutter 3. The edge of the circular cutter 3 abuts in the notch 111. The design is reasonable. The sponge block 110 can dry the circular cutter 3 after it has been coated by the sponge ring 6, avoiding excessive silicone oil from contacting the optical tape.

[0020] In this embodiment, a cylinder 120 is vertically installed on the top of the gantry frame 1. The piston rod of the cylinder 120 is set downwards, and a lifting plate 130 is fixedly connected to the end of the piston rod of the cylinder 120. Two pairs of connecting arms 131 are fixedly connected to the bottom of the lifting plate 130. The connecting arms 131 are set vertically, and a pressure roller 132 is rotatably connected between the bottom of each pair of connecting arms 131. The two pressure rollers 132 are respectively located on the front and rear sides of the circular cutter 3. When cutting the optical tape, the two pressure rollers 132 press down against the optical tape, which can ensure that the height of the optical tape is lower than the height of the top of the circular cutter 3, and ensure that the circular cutter 3 can cut the tape.

[0021] In actual use, the optical tape passes over the circular cutter 3. The height of the two pressure rollers 132 is adjusted by the cylinder 120 so that the height of the optical tape is lower than the top of the circular cutter 3, ensuring that the circular cutter 3 can effectively cut the tape. Then, anti-stick silicone oil is filled into the silicone oil box 7 through the injection port 71, so that the lower end of the sponge ring 6 is completely submerged in silicone oil. After the motor 8 is turned on, the circular cutter 3 and the cleaning disc 5 rotate in the same direction. The rotation of the circular cutter 3 can cut the optical tape, and the rotation of the cleaning disc 5 can ensure that the sponge ring 6 is always adsorbed with silicone oil. Since the sponge ring 6 is in contact with the circular cutter 3, the anti-stick silicone oil can be continuously coated on the circular cutter 3, effectively preventing the circular cutter 3 from sticking to the cut surface of the OCA optical adhesive.

[0022] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A slitting OCA optical adhesive anti-sticking knife device, comprising a gantry (1), a first rotating shaft (2) is rotatably connected between the two side arms of the gantry (1), and a plurality of round cutters (3) are arranged at intervals on the first rotating shaft (2), characterized in that, A second rotating shaft (4) is rotatably connected between the two arms of the gantry frame (1). The second rotating shaft (4) is located below the first rotating shaft (2). Several cleaning discs (5) are arranged at intervals on the second rotating shaft (4). The outer circumference of the cleaning discs (5) is provided with annular mounting grooves (51). The edges of several circular cutters (3) are respectively set in the mounting grooves (51). A sponge ring (6) is fitted in the mounting groove (51). A cleaning groove (61) corresponding to the edge shape of the circular cutter (3) is provided on the outer peripheral surface. The edge of the circular cutter (3) abuts against the cleaning groove (61). A silicone oil box (7) with a top opening is fixed between the two arms of the gantry frame (1). The lower parts of several cleaning discs (5) are all located in the silicone oil box (7). A first pulley (21) is fixed to the end of the first rotating shaft (2), and a second pulley (41) is fixed to the end of the second rotating shaft (4). The first pulley (21) The second pulley (41) is connected by a transmission belt. A motor (8) is installed on one side arm of the gantry frame (1). The output shaft of the motor (8) is fixedly connected to the second rotating shaft (4). Several swing arms (10) are hinged to one side of the silicone oil box (7). The swing arms (10) are fixed to the silicone oil box (7) by pins (74). The end of the swing arms (10) is fixedly connected to the mounting box (101). Several mounting boxes (101) are respectively set on one side of several circular cutters (3) in the horizontal direction. The mounting box (101) is open on the side facing the circular cutter (3). A sponge block (110) is inserted in the mounting box (101). The upper and lower sides of the mounting box (101) are provided with slots (102) for the circular cutter (3) to pass through. The sponge block (110) has a notch (111) corresponding to the edge shape of the circular cutter (3). The edge of the circular cutter (3) abuts in the notch (111).

2. The anti-sticking knife device for slitting OCA optical adhesive according to claim 1, characterized in that, The top of the silicone oil box (7) is detachably connected to a splash cover (9). The splash cover (9) covers several cleaning discs (5) inside. The splash cover (9) has several slots (91) for several circular cutters (3) to pass through. The edges of several circular cutters (3) are respectively set in several slots (91). The circular cutters (3) and the slots (91) are fitted with a clearance. The upper part of the silicone oil box (7) is provided with a liquid injection port (71). A sealing cap (72) is threaded onto the liquid injection port (71).

3. The anti-sticking knife device for slitting OCA optical adhesive according to claim 1, characterized in that, A cylinder (120) is vertically installed on the top of the gantry frame (1). The piston rod of the cylinder (120) is set downwards. A lifting plate (130) is fixed to the end of the piston rod of the cylinder (120). Two pairs of connecting arms (131) are fixed to the bottom of the lifting plate (130). A pressure roller (132) is rotatably connected between each pair of connecting arms (131). The two pressure rollers (132) are located on both sides of the circular cutter (3).

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