An optical adhesive coater

Abstract

The utility model discloses an optical glue coating machine, including the U type frame, the inside fixedly connected with the transverse board of U type frame, the top fixedly connected with electric push rod of transverse board, the top fixedly connected with the U type guide plate of electric push rod output, the outer wall of U type frame is equipped with two and places the recess hole. The utility model dust roller, first electrostatic flocking roller and second electrostatic flocking roller form double -cleaning structure, first by dust roller utilize silica gel adhesion adsorption big -sized particle contaminant to capture tiny dust under the action of electrostatic field, solve the problem that traditional mode is not thorough to clean, guarantee the no bubble, spot after gluing and so on defect, electric push rod and double -shaft air cylinder can be adjusted contact pressure and position of cleaning component according to the polymer film of different thickness, material, promote the versatility of equipment, in addition centrifugal fan cooperation exhaust pipe constructs negative pressure dust collection, and timely suction removes the dust of cleaning.

Description

Technical Field

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

[0002] Optical adhesive coating machines are essential equipment for processing optical materials. They are primarily used to uniformly coat substrates with optical adhesives (such as OCA optical adhesives and UV-curable adhesives) to meet the requirements of optical component manufacturing. In the optical adhesive coating process, polymer films (such as PET, CPI, PMMA, etc.) are key substrates, and their surface cleanliness directly affects the coating quality and the optical performance and reliability of the final product.

[0003] In existing technologies, relying solely on simple roller contact or fiber cloth cleaning methods to remove particulate contaminants such as dust and fiber debris from the substrate surface is insufficient to completely remove tiny particles. Furthermore, it is prone to secondary pollution problems such as adhesive residue or fiber shedding, leading to defects such as bubbles and spots after adhesive application and reducing product yield. Therefore, we propose an optical adhesive coating machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an optical adhesive coating machine.

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

[0006] An optical adhesive coating machine includes a U-shaped frame. A horizontal plate is fixedly connected inside the U-shaped frame. An electric push rod is fixedly connected to the top of the horizontal plate. A U-shaped guide plate is fixedly connected to the top of the output end of the electric push rod. Two placement recesses are formed on the outer wall of the U-shaped frame. A common dust-adhesive roller is rotatably connected to the inner wall of the two placement recesses. Three guide rollers and a flattening roller are rotatably connected inside the U-shaped frame. A dual-axis cylinder is fixedly connected to the inner wall of the U-shaped frame. A lifting plate is fixedly connected to the top of the output end of the dual-axis cylinder. Four supports are fixedly connected to the top of the lifting plate. Two first electrostatic flocking rollers are rotatably connected to each of the four supports in pairs. A second electrostatic flocking roller is rotatably connected inside the U-shaped frame. A dust removal assembly is provided on the outer wall of the U-shaped frame.

[0007] Preferably, the dust removal assembly includes three exhaust pipes, one end of which is fixedly connected to the same centrifugal fan. Each of the three exhaust pipes has a strip-shaped hole on its outer wall. A frame is fixedly connected to the outer wall of the U-shaped frame, and a motor is fixedly connected to the top of the frame. One end of the motor output shaft is fixedly connected to one end of the second electrostatic flocking roller. The dust is further cleaned by setting up the dust removal assembly.

[0008] Preferably, both ends of the U-shaped guide plate are slidably connected to the inner wall of the U-shaped frame, thereby supporting the polymer film substrate.

[0009] Preferably, the dust-adhesive roller is located at the top of the U-shaped guide plate.

[0010] Preferably, the outer wall of the U-shaped frame has three through holes, and the inner walls of the three through holes are respectively fixedly connected to the outer walls of the three suction pipes.

[0011] Preferably, the outer wall of the U-shaped frame has a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the motor output shaft.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution employs a dual cleaning structure comprised of a dust-adhesive roller, a first electrostatic flocking roller, and a second electrostatic flocking roller. The dust-adhesive roller first uses the adhesive properties of silicone to adsorb large particulate contaminants, and then captures fine dust particles under the influence of an electrostatic field, solving the problem of incomplete cleaning in traditional methods and ensuring no defects such as bubbles or spots after adhesive application. An electric push rod and a dual-axis cylinder allow adjustment of the contact pressure and position of the cleaning components according to the thickness and material of the polymer film, improving the equipment's versatility. Furthermore, a centrifugal fan, in conjunction with an extraction pipe, creates negative pressure suction to promptly remove dust generated during cleaning. Attached Figure Description

[0014] 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.

[0015] Figure 1 This is a three-dimensional structural diagram of an optical adhesive coating machine proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of an optical adhesive coating machine proposed in this utility model;

[0017] Figure 3 This utility model proposes an optical adhesive coating machine. Figure 2 A magnified structural diagram of part A in the diagram.

[0018] In the diagram: 1. U-shaped frame; 2. Horizontal plate; 3. Electric push rod; 4. U-shaped guide plate; 5. Dust-adhesive roller; 6. Guide roller; 7. Flattening roller; 8. Dual-axis cylinder; 9. Lifting plate; 10. Support frame; 11. First electrostatic flocking roller; 12. Second electrostatic flocking roller; 13. Air extraction pipe; 14. Frame; 15. Motor. Detailed Implementation

[0019] 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.

[0020] Depend on Figures 1-3 As shown, an optical adhesive coating machine is disclosed, comprising a U-shaped frame 1, a horizontal plate 2 fixedly connected inside the U-shaped frame 1, an electric push rod 3 fixedly connected to the top of the horizontal plate 2, a U-shaped guide plate 4 fixedly connected to the top of the output end of the electric push rod 3, both ends of the U-shaped guide plate 4 being slidably connected to the inner wall of the U-shaped frame 1, two placement recesses being opened on the outer wall of the U-shaped frame 1, and the same adhesive roller 5 being rotatably connected to the inner wall of the two placement recesses. The adhesive roller 5 is made of silicone and can be replaced periodically. The adhesive roller 5 is located at the top of the U-shaped guide plate 4, and the same adhesive roller 5 is rotatably connected to the two placement recesses through a high-precision deep groove ball bearing.

[0021] The U-shaped frame 1 has three guide rollers 6 rotatably connected inside via existing steel bearings. The guide rollers 6 are hard chrome plated, which has the characteristics of high hardness and low surface roughness, which can effectively reduce friction with the polymer film substrate and avoid scratching the substrate surface. The U-shaped frame 1 also has a flattening roller 7 rotatably connected inside via existing steel bearings. A dual-axis cylinder 8 is fixedly connected to the inner wall of the U-shaped frame 1, and a lifting plate 9 is fixedly connected to the top of the output end of the dual-axis cylinder 8.

[0022] Four brackets 10 are fixedly connected to the top of the lifting plate 9. The four brackets 10 are rotatably connected in pairs to two first electrostatic flocking rollers 11. The first electrostatic flocking rollers 11 are rotatably connected through roller bearings. The second electrostatic flocking roller 12 is rotatably connected inside the U-shaped frame 1. The surfaces of the first electrostatic flocking rollers 11 and the second electrostatic flocking rollers 12 are uniformly covered with ultrafine conductive fibers. Under the action of electrostatic field, they can actively adsorb charged particles on the surface of the film substrate to achieve deep cleaning.

[0023] The outer wall of the U-shaped frame 1 is equipped with a dust removal component, which includes three exhaust pipes 13. The outer wall of the U-shaped frame 1 has three through holes, and the inner walls of the three through holes are fixedly connected to the outer walls of the three exhaust pipes 13 respectively. One end of the three exhaust pipes 13 is fixedly connected to the same centrifugal fan. The centrifugal fan can adjust the exhaust volume according to actual production needs. The outer walls of the three exhaust pipes 13 are all provided with strip-shaped holes. Under the action of the centrifugal fan, the strip-shaped holes can form a highly efficient negative pressure dust collection area inside the U-shaped frame 1, and promptly remove dust and particles generated during the cleaning process.

[0024] The outer wall of the U-shaped frame 1 is fixedly connected to the frame 14, and the top of the frame 14 is fixedly connected to the motor 15. The outer wall of the U-shaped frame 1 has a round hole, and the inner wall of the round hole is rotatably connected to the outer wall of the output shaft of the motor 15. One end of the output shaft of the motor 15 is fixedly connected to one end of the second electrostatic flocking roller 12. The whole equipment is used in the existing dust-free environment to avoid external dust adhering to the polymer film substrate.

[0025] Working principle: During use, before applying adhesive to the polymer film substrate, the electric push rod 3 moves the U-shaped guide plate 4 upward, causing the top of the polymer film substrate to contact the outer wall of the adhesive roller 5. Since the polymer film substrate is conveyed by the existing coating machine, the adhesive roller 5 rotates with the polymer film substrate due to the pressure between them. The adhesive roller 5 removes particles from the coated surface through its adhesion ability. When the polymer film substrate passes through the two first electrostatic flocking rollers 11 and the second electrostatic flocking roller 12, the two first electrostatic flocking rollers 11 rotate with it due to the pressure between them. The motor 15 drives the second electrostatic flocking roller 12 to rotate, removing particles (such as dust and fiber debris) from the surface of the polymer film substrate without introducing secondary pollution (such as glue residue or fiber shedding). At the same time, the dual-axis cylinder 8 drives the lifting plate 9 and the four supports 10 to move up and down, thereby driving the two first electrostatic flocking rollers 11 to move up and down, changing the contact degree between the two first electrostatic flocking rollers 11 and the polymer film substrate. Then, the centrifugal fan operates through three exhaust pipes 13 and three strip holes to suck away the dust or particles scattered in the U-shaped frame 1, increasing the cleanliness. Subsequently, the polymer film substrate is conveyed out through the flattening roller 7.

[0026] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. Furthermore, the structure and principle of the components known to those skilled in the art can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0027] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An optical adhesive coating machine, comprising a U-shaped frame (1), characterized in that, The U-shaped frame (1) is fixedly connected to a horizontal plate (2). An electric push rod (3) is fixedly connected to the top of the horizontal plate (2). A U-shaped guide plate (4) is fixedly connected to the top of the output end of the electric push rod (3). Two placement recesses are opened on the outer wall of the U-shaped frame (1). The same dust-adhesive roller (5) is rotatably connected to the inner wall of the two placement recesses. Three guide rollers (6) are rotatably connected to the inside of the U-shaped frame (1). A flattening roller (7) is rotatably connected to the inside of the U-shaped frame (1). A double-axis cylinder (8) is fixedly connected to the inner wall of the U-shaped frame (1). A lifting plate (9) is fixedly connected to the top of the output end of the double-axis cylinder (8). Four supports (10) are fixedly connected to the top of the lifting plate (9). Two first electrostatic flocking rollers (11) are rotatably connected to each of the four supports (10) in pairs. A second electrostatic flocking roller (12) is rotatably connected to the inside of the U-shaped frame (1). A dust removal component is provided on the outer wall of the U-shaped frame (1).

2. The optical adhesive coating machine according to claim 1, characterized in that, The dust removal assembly includes three exhaust pipes (13), one end of which is fixedly connected to the same centrifugal fan. The outer walls of the three exhaust pipes (13) are all provided with strip-shaped holes. The outer wall of the U-shaped frame (1) is fixedly connected to a frame (14). The top of the frame (14) is fixedly connected to a motor (15). One end of the output shaft of the motor (15) is fixedly connected to one end of the second electrostatic flocking roller (12).

3. The optical adhesive coating machine according to claim 1, characterized in that, Both ends of the U-shaped guide plate (4) are slidably connected to the inner wall of the U-shaped frame (1).

4. The optical adhesive coating machine according to claim 1, characterized in that, The sticky roller (5) is located on top of the U-shaped guide plate (4).

5. An optical adhesive coating machine according to claim 2, characterized in that, The outer wall of the U-shaped frame (1) has three through holes, and the inner walls of the three through holes are fixedly connected to the outer walls of the three exhaust pipes (13).

6. An optical adhesive coating machine according to claim 2, characterized in that, The outer wall of the U-shaped frame (1) has a circular hole, and the inner wall of the circular hole is rotatably connected to the outer wall of the output shaft of the motor (15).

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