OCA (Optical Clear Adhesive) gluing device

Abstract

The utility model discloses an OCA (Optical Clear Adhesive) gluing device which comprises a sealing box, a shell fixedly penetrates through the outer surface of the sealing box, a bidirectional moving assembly is mounted at the top end of the shell, and mounting plates are fixedly mounted at two movable ends of the bidirectional moving assembly; an electric reciprocating screw rod is mounted on one side of the outer surface of one mounting plate, and a sliding rail is fixedly connected to one side of the outer surface of the other mounting plate; and a straight pipe is arranged in the sealing box. By arranging the shell, the mounting plate, the two-way moving assembly, the electric reciprocating lead screw, the sliding rail, the sliding seat, the straight pipe, the spray heads, the piston, the sliding rod, the long rod, the limiting frame and the limiting block, the use length of the straight pipe is controlled through the piston, so that the use number of the spray heads is controlled, the arrangement of control valves is reduced, and the manufacturing cost and the installation and maintenance difficulty can be reduced; meanwhile, the limiting plate and the piston are synchronously adjusted, adjusting steps are reduced, and adjusting efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of adhesive application technology, and in particular to an OCA optical adhesive application device. Background Technology

[0002] OCA optical adhesive is a special adhesive used for bonding transparent optical components. Among its various forms, liquid OCA adhesive is one such form. It is a liquid specialty adhesive characterized by its colorless transparency, high light transmittance, good bonding strength, and ability to cure at room or medium temperatures. It also exhibits low curing shrinkage and resistance to yellowing. Liquid OCA adhesive is particularly suitable for bonding transparent optical components, such as touchscreens and displays, due to its high light transmittance, high transparency, good flexibility and ductility, resistance to yellowing, and bubble-free properties, making it widely used in the electronics and optics fields. Currently, the application of OCA optical adhesive requires the use of an adhesive applicator.

[0003] An OCA optical adhesive coating device with prior art disclosure number CN218610158U includes a sealed box with notches at both ends, through which a substrate is inserted. Two conveying rollers are symmetrically and rotatably mounted on the inner wall of the bottom of the sealed box, and the conveying rollers slide in contact with the bottom of the substrate. A nozzle assembly is provided inside the sealed box, and a reciprocating mechanism is provided on both sides of the sealed box to drive the nozzle assembly to reciprocate to spray adhesive.

[0004] This device can achieve multi-layer adhesive application. However, in actual operation, it was found that it has multiple nozzles for adhesive application. When applying adhesive to substrates of different widths, different numbers of nozzles need to be activated. In existing technology, the opening and closing of the nozzles are generally controlled by solenoid valves. However, multiple nozzles require multiple solenoid control valves. Since each solenoid control valve requires an independent power supply and control signal, this increases the manufacturing cost and the complexity of installation and maintenance. Therefore, an improvement is proposed. Utility Model Content

[0005] This invention is a device for applying OCA optical adhesive to overcome the shortcomings of existing technologies.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an OCA optical adhesive application device, comprising a sealed box, wherein a shell is fixedly penetrated through the outer surface of the sealed box, a bidirectional moving component is installed at the top of the shell, and mounting plates are fixedly installed at both movable ends of the bidirectional moving component;

[0007] An electric reciprocating screw is installed on one side of the outer surface of one of the mounting plates, and a slide rail is fixedly connected to one side of the outer surface of another individual mounting plate;

[0008] The sealed box has a straight tube inside, and two pistons are symmetrically and slidably connected inside the straight tube. A slide rod is fixedly connected to one side of the outer surface of each of the two pistons, and a slider is fixedly connected to the other end of each of the two slide rods. The slide rail is slidably connected to the adjacent slider, and the electric reciprocating screw is connected to the adjacent slider.

[0009] Multiple nozzles are fixedly connected to the bottom of the straight pipe;

[0010] Long rods are fixedly connected to adjacent sides of the outer surfaces of the two mounting plates, and limit plates are fixedly connected to adjacent ends of the two long rods. A conveying roller is slidably connected to the bottom of the two limit plates, and the conveying roller is rotatably connected to the sealing box.

[0011] A base plate is provided between the two limiting plates, and the base plate is located above the conveying roller;

[0012] Two limiting blocks are symmetrically fixedly connected to the top of the straight pipe. The top of each limiting block is slidably connected to a limiting frame, and the limiting frame is fixedly connected to the sealing box.

[0013] Furthermore, each of the bidirectional moving components includes a first motor, which is fixedly mounted on one side of the outer surface of the housing. The drive end of the first motor is fixedly connected to a bidirectional screw, which extends through the outer wall of the housing and is rotatably connected to it. The outer surface of the bidirectional screw is symmetrically threaded with two slide blocks, and the slide blocks are fixedly connected to adjacent mounting plates, which can drive the two mounting plates to move closer or further apart.

[0014] Furthermore, both slide blocks slide in contact with the inner top of the housing, and the housing has a limiting effect on the slide blocks, which can ensure the stability of the slide block movement.

[0015] Furthermore, the electric reciprocating screw includes a fixed frame, and the fixed frame is fixedly connected to an adjacent mounting plate. A second motor is fixedly installed on one side of the outer surface of the fixed frame. The drive end of the second motor is fixedly connected to the reciprocating screw body, and the reciprocating screw body passes through the fixed frame and is rotatably connected to it. The reciprocating screw body is matched with an adjacent slider. The reciprocating screw body and the adjacent slider are used together to drive the slider to move back and forth.

[0016] Furthermore, the top wall and bottom of the fixed frame are both in contact with and slide against the adjacent sliders, and the fixed frame has a limiting effect on the adjacent sliders, which can ensure the stability of the slider movement.

[0017] Furthermore, two limiting rods are slidably connected to both sides of the outer surface of the straight tube, and the limiting rods are fixedly connected to the adjacent sliders. The limiting rods have a limiting effect on the straight tube and can assist the straight tube in reciprocating movement.

[0018] Furthermore, a hot melt box is fixedly installed on the inner top of the sealed box, and a flexible hose is fixedly connected between the hot melt box and the straight pipe. The flexible hose can avoid affecting the movement of the straight pipe.

[0019] The beneficial effects of this utility model are:

[0020] In use, this utility model provides an OCA optical adhesive application device. Through a housing, mounting plate, bidirectional moving assembly, electric reciprocating screw, slide rail, slide block, straight tube, nozzle, piston, slide rod, long rod, limiting frame, and limiting block, the piston controls the length of the straight tube, thereby controlling the number of nozzles used. This reduces the need for control valves, lowering manufacturing costs and simplifying installation and maintenance. Furthermore, the limiting plate and piston are synchronously adjusted, reducing adjustment steps and improving efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 : A perspective view of this utility model;

[0023] Figure 2 : A cross-sectional view of this utility model;

[0024] Figure 3 : Schematic diagram of the connection between the electric reciprocating lead screw and the slide of this utility model;

[0025] Figure 4 The present utility model Figure 2 Enlarged view of point A in the middle;

[0026] Figure 5 The present utility model Figure 2 Enlarged view of point B in the middle.

[0027] The attached figures are labeled as follows:

[0028] 1. Sealed box; 2. Housing; 3. First motor; 4. Base plate; 5. Slide block; 6. Long rod; 7. Straight pipe; 8. Hot melt box; 9. Hose; 10. Bidirectional screw; 11. Conveyor roller; 12. Limiting plate; 13. Slide rod; 14. Mounting plate; 15. Slider; 16. Nozzle; 17. Piston; 18. Limiting rod; 19. Reciprocating screw body; 20. Fixing frame; 21. Second motor; 22. Slide rail; 23. Limiting frame; 24. Limiting block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0030] like Figures 1 to 5 As shown, an OCA optical adhesive application device is disclosed, comprising a sealed box 1, with a housing 2 fixedly extending through the outer surface of the sealed box 1. A bidirectional moving assembly is installed at the top of the housing 2, and mounting plates 14 are fixedly installed at both movable ends of the bidirectional moving assembly. Each bidirectional moving assembly includes a first motor 3, which is fixedly installed on one side of the outer surface of the housing 2. A bidirectional screw 10 is fixedly connected to the drive end of the first motor 3, and the bidirectional screw 10 extends through the outer wall of the housing 2 and is rotatably connected thereto. Two slides 5 are symmetrically threaded on the outer surface of the bidirectional screw 10. When the bidirectional screw 10 rotates, it can drive the two slides 5 to move closer or further away from each other. The slides 5 are fixedly connected to the adjacent mounting plates 14, and both slides 5 slide against the inner top of the housing 2. The housing 2 has a limiting effect on the slides 5, which can ensure the stability of the movement of the slides 5.

[0031] An electric reciprocating screw is mounted on one side of the outer surface of a single mounting plate 14, and a slide rail 22 is fixedly connected to one side of the outer surface of another single mounting plate 14. The interior of the sealed box 1 contains a straight tube 7, and two pistons 17 are symmetrically and slidably connected inside the straight tube 7. A slide rod 13 is fixedly connected to one side of the outer surface of each piston 17, and a slider 15 is fixedly connected to the other end of each slide rod 13. The slide rail 22 is slidably connected to the adjacent slider 15, and the electric reciprocating screw is connected to the adjacent slider 15. The electric reciprocating screw includes a fixed frame 20, which is fixedly connected to the adjacent mounting plate 14. A second motor 21 is fixedly mounted on one side of the outer surface of the fixed frame 20. The drive end of 21 is fixedly connected to the reciprocating lead screw body 19, and the reciprocating lead screw body 19 passes through the fixed frame 20 and is rotatably connected to it. The reciprocating lead screw body 19 is matched with the adjacent slider 15. Here, the slider 15 is fitted onto the outer surface of the reciprocating lead screw body 19. The reciprocating lead screw body 19 is a lead screw that can make the slider 15 reciprocate without changing the rotation direction of the main shaft. The inner top wall and inner bottom of the fixed frame 20 are both in contact with the adjacent slider 15 and slide together. Two limiting rods 18 are slidably connected to both sides of the outer surface of the straight tube 7, and the limiting rods 18 are fixedly connected to the adjacent slider 15. When the slider 15 moves, the straight tube 7 can be moved through the limiting rods 18.

[0032] A hot melt box 8 is fixedly installed on the top of the sealed box 1. A flexible hose 9 is fixedly connected between the hot melt box 8 and the straight pipe 7. Multiple nozzles 16 are fixedly connected to the bottom of the straight pipe 7. The flexible hose 9 facilitates the back-and-forth movement of the straight pipe 7.

[0033] Long rods 6 are fixedly connected to adjacent sides of the outer surfaces of the two mounting plates 14. Limiting plates 12 are fixedly connected to adjacent ends of the two long rods 6. Conveying rollers 11 are slidably connected to the bottom of the two limiting plates 12, and the conveying rollers 11 are rotatably connected to the sealing box 1. The mounting plates 14 can drive the limiting plates 12 to move through the long rods 6.

[0034] A base plate 4 is provided between the two limiting plates 12, and the base plate 4 is located above the conveying roller 11. The limiting plates 12 have a limiting effect on the base plate 4.

[0035] Two limiting blocks 24 are symmetrically fixedly connected to the top of the straight pipe 7. The top of each limiting block 24 is slidably connected to a limiting frame 23, and the limiting frame 23 is fixedly connected to the sealing box 1. The limiting frame 23 and the limiting block 24 cooperate to limit the straight pipe 7 to the left and right, ensuring the stability of the straight pipe 7 in use.

[0036] Working principle: Before use, the adhesive application range and the distance between the two limiting plates 12 need to be adjusted according to the width of the substrate 4. The first motor 3 drives the bidirectional screw 10 to rotate, which in turn drives the two slide blocks 5 to move closer together. The two slide blocks 5 then drive the two mounting plates 14 to move closer together. The mounting plates 14 drive the piston 17 to move via the slide rod 13 until the piston 17 moves to the set position, limiting the flow range of the OCA optical adhesive so that it can only be discharged through the nozzle 16 located between the two pistons 17. At the same time, the mounting plates 14 drive the two limiting plates 12 via the long rod 6. The position plates 12 approach each other until the setting is reached, and the limiting plates 12 limit the two sides of the substrate 4. During the gluing process, in order to achieve a multi-layer gluing effect, the second motor 21 drives the reciprocating lead screw body 19 to rotate. The reciprocating lead screw body 19 drives the slider 15 connected to it to move back and forth. The slider 15 drives the straight tube 7 to move back and forth through the limiting rod 18. The straight tube 7 extends to the limiting frame 23 through the limiting block 24 to move. The specific gluing process has been described in the existing technology disclosure CN218610158U of an OCA optical adhesive coating device.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An OCA optical adhesive application device, comprising a sealed box (1), characterized in that: The outer surface of the sealed box (1) is fixedly perforated by a shell (2), and a bidirectional moving component is installed at the top of the shell (2). Both movable ends of the bidirectional moving component are fixedly installed with mounting plates (14). An electric reciprocating screw is installed on one side of the outer surface of one of the mounting plates (14), and a slide rail (22) is fixedly connected to one side of the outer surface of another single mounting plate (14); The sealed box (1) is provided with a straight tube (7) inside. The straight tube (7) is symmetrically sealed and slidably connected with two pistons (17). A slide rod (13) is fixedly connected to one side of the outer surface of each of the two pistons (17). A slider (15) is fixedly connected to the other end of each of the two slide rods (13). The slide rail (22) is slidably connected to the adjacent slider (15). The electric reciprocating screw is connected to the adjacent slider (15). The bottom of the straight pipe (7) is fixedly perforated with multiple nozzles (16); Long rods (6) are fixedly connected to adjacent sides of the outer surfaces of the two mounting plates (14), and limit plates (12) are fixedly connected to adjacent ends of the two long rods (6). A conveying roller (11) is slidably connected to the bottom of the two limit plates (12), and the conveying roller (11) is rotatably connected to the sealing box (1). A base plate (4) is provided between the two limiting plates (12), and the base plate (4) is located above the conveying roller (11); The top of the straight tube (7) is symmetrically fixedly connected to two limiting blocks (24), and the top of each of the two limiting blocks (24) is slidably connected to a limiting frame (23), and the limiting frame (23) is fixedly connected to the sealing box (1).

2. The OCA optical adhesive application device according to claim 1, characterized in that: Each of the bidirectional moving components includes a first motor (3), and the first motor (3) is fixedly installed on one side of the outer surface of the housing (2). The drive end of the first motor (3) is fixedly connected to a bidirectional screw (10), and the bidirectional screw (10) extends through the outer wall of the housing (2) to the interior and is rotatably connected thereto. The outer surface of the bidirectional screw (10) is symmetrically threaded with two slides (5), and the slides (5) are fixedly connected to the adjacent mounting plate (14).

3. The OCA optical adhesive application device according to claim 2, characterized in that: Both of the slide blocks (5) slide against the inner top of the housing (2).

4. The OCA optical adhesive application device according to claim 1, characterized in that: The electric reciprocating screw includes a fixed frame (20), and the fixed frame (20) is fixedly connected to the adjacent mounting plate (14). A second motor (21) is fixedly installed on one side of the outer surface of the fixed frame (20). The drive end of the second motor (21) is fixedly connected to the reciprocating screw body (19), and the reciprocating screw body (19) passes through the fixed frame (20) and is rotatably connected to it. The reciprocating screw body (19) is matched with the adjacent slider (15).

5. The OCA optical adhesive application device according to claim 4, characterized in that: The top and bottom walls of the fixed frame (20) are both in contact with and slide against the adjacent slider (15).

6. The OCA optical adhesive application device according to claim 1, characterized in that: Two limiting rods (18) are slidably connected to both sides of the outer surface of the straight tube (7), and the limiting rods (18) are fixedly connected to the adjacent sliders (15).

7. The OCA optical adhesive application device according to claim 1, characterized in that: A hot melt box (8) is fixedly installed on the inner top of the sealed box (1), and a flexible hose (9) is fixedly connected between the hot melt box (8) and the straight pipe (7).

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