Coating device for hot-melt optical adhesive

Abstract

The utility model discloses a coating device for hot-melt optical cement, and belongs to the field of hot-melt optical cement production, the coating device comprises a box body, a separating device used for separating optical cement coating is assembled on the top of the box body, an electric sliding rail is assembled on the front face of the box body, and an electric sliding block is slidably connected to the inner wall of the electric sliding rail; the separating device comprises a fixing plate, a groove is formed in the front face of the box body, the fixing plate is fixedly connected to the front face of the inner wall of the groove, a first rotating rod is rotationally connected to the bottom of the inner wall of the groove through a bearing, and a first circular gear is fixedly connected to the outer wall of the first rotating rod. A first rack is slidably connected to the inner wall bottom of the groove, a fixing rod is fixedly connected to the top of the first rack, and a separation block is fixedly connected to the bottom of the fixing rod. The gluing operation is automatically controlled, human intervention is reduced, the function of automatically separating a base material from a coating after gluing is completed is achieved, and the working efficiency and precision are greatly improved.

Description

Technical Field

[0001] This application relates to the field of hot melt optical adhesive production, and more specifically, to a coating apparatus for hot melt optical adhesive. Background Technology

[0002] A coating apparatus is a device used to apply hot melt optical adhesive to a substrate. It is commonly used in the manufacture of optical products such as touchscreens and displays. The coating system includes components such as a melt nozzle, a nozzle control system, and a coating roller. The molten adhesive is evenly sprayed onto the substrate surface through the nozzle. The nozzle control system precisely adjusts the spray volume and speed of the molten adhesive to meet the needs of different substrates. The coating roller is used to evenly flatten the molten adhesive, ensuring coating quality.

[0003] Patent document CN222077108U discloses a coating device for hot-melt optical adhesive, relating to the field of optical adhesive coating technology. This hot-melt optical adhesive coating device includes a base, a coating table, a coating assembly, a placement groove, a recess, and a top block. One end of the top block near the placement groove has an arc-shaped surface, including a front end and a rear end. The plane containing the front end of the arc-shaped surface is below the placement groove, and the plane containing the rear end is above the placement groove. The device also includes a connecting rod for connecting the two top blocks, with a handle in the middle of the connecting rod. This coating device prevents the substrate from shaking when placed in the placement groove by the contact between the inner wall of the placement groove and the inner wall of the substrate, facilitating subsequent optical adhesive coating. Simultaneously, the top block facilitates the removal of the substrate coated with optical adhesive from the placement groove, improving the convenience of substrate removal. Furthermore, the suction cup further enhances the stability of the substrate within the placement groove.

[0004] While the aforementioned application documents facilitate the removal of the substrate coated with optical adhesive from the placement slot, thus improving the convenience of substrate removal, the substrate coated with optical adhesive still needs to be manually removed during use, which is quite inconvenient.

[0005] Therefore, a coating apparatus for hot melt optical adhesive is provided. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a coating device for hot-melt optical adhesives, solving the problems mentioned in the background section. To achieve the above objectives, this utility model is implemented through the following technical solution: A coating device for hot-melt optical adhesives includes a housing. A separation device for separating the optical adhesive coating is mounted on the top of the housing. An electric slide rail is mounted on the front of the housing. An electric slider is slidably connected to the inner wall of the electric slide rail. A coating assembly is fixedly connected to the top of the electric slider. The separation device includes a fixing plate. A groove is formed on the front of the housing. The fixing plate is fixedly connected to the front of the inner wall of the groove. A first rotating rod is rotatably connected to the bottom of the inner wall of the groove via a bearing. A first spur gear is fixedly connected to the outer wall of the first rotating rod. A first rack is slidably connected to the bottom of the inner wall of the groove. A fixing rod is fixedly connected to the top of the first rack. A separation block is fixedly connected to the bottom of the fixing rod. A transmission assembly for flexibly adjusting to coating and demolding at different working stages is mounted on the top of the fixing plate. A connecting plate is fixedly connected to the bottom of the electric slider. The connecting plate is fixedly connected to the top of the first rack.

[0007] Preferably, the transmission assembly includes a ratchet, which is fixedly sleeved on the outer wall of the first rotating rod. A second sprocket is rotatably connected to the top of the fixed plate via a bearing. A pawl is hinged to the inner wall of the second sprocket. A second rack is slidably connected to the top of the fixed plate. An elastic telescopic rod is fixedly connected to the side of the second rack.

[0008] Preferably, the first rack meshes with the first sprocket.

[0009] Preferably, the second rack meshes with the second sprocket.

[0010] Preferably, the top of the housing is equipped with a heat dissipation device for separating the coating after the adhesive application is completed.

[0011] Preferably, the heat dissipation device includes a first hydraulic chamber, a first hydraulic rod slidably connected to one end of the first hydraulic chamber by a piston, the first hydraulic rod being fixedly connected to the top of a second rack, a horizontal plate being fixedly connected to the side of the electric slider, a second hydraulic chamber being fixedly connected to the top of the horizontal plate, a second hydraulic rod slidably connected to one end of the second hydraulic chamber by a piston, a toothed block being fixedly connected to the second hydraulic rod, a second rotating rod being rotatably connected to the top of the horizontal plate via a bearing, a third spur gear being fixedly sleeved on the outer wall of the second rotating rod, and a fan being fixedly connected to the outer wall of the second rotating rod.

[0012] Preferably, the toothed block meshes with the third sprocket, and the first hydraulic chamber and the second hydraulic chamber are connected by a connecting hose.

[0013] The advantages of this application are:

[0014] I. This application reduces human intervention by automating the glue application process and achieves the function of automatically separating the substrate and coating after glue application, which greatly improves work efficiency and accuracy.

[0015] 2. This application accelerates the curing process of the optical adhesive by using a hydraulic system to drive a fan for cooling after the optical adhesive is applied, thereby improving work efficiency and ensuring the quality and stability of the substrate after separation from the adhesive layer. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the rear side of a portion of the structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B.

[0021] In the above image,

[0022] 1. Housing; 2. Separation device; 21. Fixing plate; 22. First rotating rod; 23. First spur gear; 24. First rack; 25. Connecting plate; 26. Ratchet; 27. Pawl; 28. Second spur gear; 29. ​​Second rack; 210. Elastic telescopic rod; 211. Fixing rod; 212. Separation block; 3. Heat dissipation device; 31. First hydraulic rod; 32. First hydraulic chamber; 33. Connecting hose; 34. Horizontal plate; 35. Second hydraulic chamber; 36. Second hydraulic rod; 37. Second rotating rod; 38. Third spur gear; 39. Fan; 4. Electric slide rail; 5. Electric slider; 6. Glue application assembly. Detailed Implementation

[0023] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present application. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative effort should fall within the scope of protection of the present application.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example

[0025] See Figures 1-4 This embodiment provides a coating device for hot melt optical adhesive, including a housing 1. A separation device 2 for separating the optical adhesive coating is mounted on the top of the housing 1. An electric slide rail 4 is mounted on the front of the housing 1. An electric slider 5 is slidably connected to the inner wall of the electric slide rail 4. An adhesive coating assembly 6 is fixedly connected to the top of the electric slider 5. The separation device 2 includes a fixing plate 21. A groove is formed on the front of the housing 1. The fixing plate 21 is fixedly connected to the front of the inner wall of the groove. A first rotating rod 22 is rotatably connected to the bottom of the inner wall of the groove via a bearing. A first spur gear 23 is fixedly connected to the outer wall of the first rotating rod 22. A first rack 24 is slidably connected to the bottom of the inner wall of the groove. A fixing rod 211 is fixedly connected to the top of the first rack 24. The bottom of the fixing rod 211 is fixed... A separation block 212 is connected to the top of the fixed plate 21, which is equipped with a transmission component that can be flexibly adjusted for coating and demolding in different working stages. The bottom of the electric slider 5 is fixedly connected to a connecting plate 25, which is fixedly connected to the top of the first rack 24. The transmission component includes a ratchet 26, which is fixedly sleeved on the outer wall of the first rotating rod 22. The top of the fixed plate 21 is rotatably connected to a second sprocket 28 through a bearing. A pawl 27 is hinged to the inner wall of the second sprocket 28. The top of the fixed plate 21 is slidably connected to a second rack 29, and an elastic telescopic rod 210 is fixedly connected to the side of the second rack 29. The first rack 24 meshes with the first sprocket 23, and the second rack 29 meshes with the second sprocket 28.

[0026] In practical use, the electric slider 5 is activated and slides against the inner wall of the electric slide rail 4, causing the glue application assembly 6 to apply glue to the material discharge trough at the top of the housing 1. When the electric slider 5 moves to the right, it causes the connecting plate 25 and the first rack 24 to move to the right. The first rack 24 drives the first sprocket 23 to rotate clockwise, which in turn drives the first rotating rod 22 to rotate clockwise. The first rotating rod 22 then drives the ratchet 26 to rotate clockwise, which in turn squeezes the pawl 27, causing it to move. This prevents the first rotating rod 22 from rotating clockwise and thus prevents it from driving the second sprocket 28 to rotate. When the electric slider 5 finishes applying glue and moves to the left, the first sprocket 28... A rack 24 drives the first sprocket 23 to rotate counterclockwise. The first sprocket 23 drives the first rotating rod 22 to rotate counterclockwise. The first rotating rod 22 drives the ratchet 26 to rotate counterclockwise. The ratchet 26 drives the pawl 27 to rotate. Because the pawl 27 is inclined and in contact with the ratchet 26, it rotates counterclockwise. The pawl 27 drives the second sprocket 28 to rotate counterclockwise. The second sprocket 28 drives the second rack 29 to move to the right. The second rack 29 presses the elastic telescopic rod 210. The second rack 29 drives the fixed rod 211 and the separating block 212 to move to the right to separate the optical adhesive cloth. After separation, simply swinging the pawl 27 will allow the elastic telescopic rod 210 to drive the second rack 29 to reset. Example

[0027] See Figures 1-4 Based on Embodiment 1, the top of the housing 1 is equipped with a heat dissipation device 3 for heat dissipation and separation of the coating after the glue application is completed. The heat dissipation device 3 includes a first hydraulic chamber 32, a first hydraulic rod 31 is slidably connected to a piston at one end inside the first hydraulic chamber 32, the first hydraulic rod 31 is fixedly connected to the top of the second rack 29, a horizontal plate 34 is fixedly connected to the side of the electric slider 5, a second hydraulic chamber 35 is fixedly connected to the top of the horizontal plate 34, a second hydraulic rod 36 is slidably connected to a piston at one end inside the second hydraulic chamber 35, a toothed block is fixedly connected to the second hydraulic rod 36, a second rotating rod 37 is rotatably connected to the top of the horizontal plate 34 through a bearing, a third spur gear 38 is fixedly sleeved on the outer wall of the second rotating rod 37, a fan 39 is fixedly connected to the outer wall of the second rotating rod 37, the toothed block and the third spur gear 38 mesh with each other, and the first hydraulic chamber 32 and the second hydraulic chamber 35 are connected by a connecting hose 33.

[0028] In practical use, the second rack 29 drives the first hydraulic rod 31 to move to the right. During the movement of the first hydraulic rod 31, the internal pressure of the first hydraulic chamber 32, the connecting hose 33, and the second hydraulic chamber 35 increases, which drives the second hydraulic rod 36 to move to the right. The second hydraulic rod 36 drives the third sprocket 38 to rotate, the third sprocket 38 drives the second rotating rod 37 to rotate, and the second rotating rod 37 drives the fan 39 to rotate, thereby cooling and separating the optical adhesive coating.

[0029] 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 coating device for hot-melt optical adhesive comprising a box (1), characterized in that, The top of the housing (1) is equipped with a separation device (2) for separating optical adhesive coating. The front of the housing (1) is equipped with an electric slide rail (4). An electric slider (5) is slidably connected to the inner wall of the electric slide rail (4). An adhesive coating assembly (6) is fixedly connected to the top of the electric slider (5). The separation device (2) includes a fixing plate (21). A groove is provided on the front of the housing (1). The fixing plate (21) is fixedly connected to the front of the inner wall of the groove. A first rotating rod (22) is rotatably connected to the bottom of the inner wall of the groove through a bearing. The outer wall of the rotating rod (22) is fixedly connected to the first spherical gear (23), the bottom of the inner wall of the groove is slidably connected to the first rack (24), the top of the first rack (24) is fixedly connected to the fixing rod (211), the bottom of the fixing rod (211) is fixedly connected to the separating block (212), the top of the fixing plate (21) is equipped with a transmission component for flexible adjustment to coating and demolding in different working stages, the bottom of the electric slider (5) is fixedly connected to the connecting plate (25), and the connecting plate (25) is fixedly connected to the top of the first rack (24).

2. The coating device for hot melt optical adhesive according to claim 1, wherein The transmission assembly includes a ratchet (26), which is fixedly sleeved on the outer wall of the first rotating rod (22). The top of the fixed plate (21) is rotatably connected to a second spur gear (28) via a bearing. The inner wall of the second spur gear (28) is hinged with a pawl (27). The top of the fixed plate (21) is slidably connected to a second rack (29), and the side of the second rack (29) is fixedly connected to an elastic telescopic rod (210).

3. The coating apparatus for hot melt optical adhesive according to claim 2, wherein The first rack (24) meshes with the first spur gear (23).

4. The coating apparatus for hot melt optical adhesive according to claim 3, wherein The second rack (29) meshes with the second sprocket (28).

5. The coating apparatus for hot melt optical adhesive according to claim 4, wherein The top of the box (1) is equipped with a heat dissipation device (3) for heat dissipation separation of the coating after the glue application is completed.

6. The coating apparatus for hot melt optical adhesive according to claim 5, wherein The heat dissipation device (3) includes a first hydraulic chamber (32), a first hydraulic rod (31) is slidably connected to a piston at one end inside the first hydraulic chamber (32), the first hydraulic rod (31) is fixedly connected to the top of the second rack (29), a horizontal plate (34) is fixedly connected to the side of the electric slider (5), a second hydraulic chamber (35) is fixedly connected to the top of the horizontal plate (34), a second hydraulic rod (36) is slidably connected to a piston at one end inside the second hydraulic chamber (35), a toothed block is fixedly connected to the second hydraulic rod (36), a second rotating rod (37) is rotatably connected to the top of the horizontal plate (34) through a bearing, a third spherical gear (38) is fixedly sleeved on the outer wall of the second rotating rod (37), and a fan (39) is fixedly connected to the outer wall of the second rotating rod (37).

7. The coating apparatus for hot melt optical adhesive according to claim 6, characterized in that, The toothed block meshes with the third spur gear (38), and the first hydraulic chamber (32) and the second hydraulic chamber (35) are connected by a connecting hose (33).

Images