A laminating device for touch screen production

Abstract

The utility model provides a kind of laminating device for touch screen production, belong to touch screen technical field.The device includes workbench, template and laminating mechanism.Workbench is equipped with negative pressure adsorption cavity, and its upper surface is through and is equipped with negative pressure adsorption hole, and negative pressure adsorption hole is communicated with negative pressure adsorption cavity;Template is equipped with different groups of specification, and the upper surface of template is equipped with placing groove, for placing touch screen, and negative pressure positioning hole is through and is equipped in placing groove, and negative pressure positioning hole is communicated with the negative pressure adsorption hole corresponding to the covering range of placing groove;Laminating mechanism is configured to reciprocate along workbench, to laminating of touch screen adsorbed and positioned on template.The utility model specifically provides a kind of can be adsorbed and positioned to touch screen, guarantees the laminating device for touch screen production of the stable position of touch screen.

Description

Technical Field

[0001] This utility model belongs to the field of touch screen technology, specifically referring to a coating device for touch screen production. Background Technology

[0002] In the manufacturing process of touchscreens, a protective film is applied to the surface of the touchscreen to effectively isolate it from dust and oil contamination during production, transportation, and subsequent processing, and to prevent scratches on the screen surface. Currently, the industry typically uses semi-automatic or manual methods for touchscreen coating. The specific operation process is as follows: the operator places the touchscreen to be coated directly on a horizontal worktable, and manually pushes the protective film roller or drives the coating mechanism to move the protective film horizontally relative to the touchscreen fixed on the worktable, thereby achieving initial adhesion between the protective film and the touchscreen surface.

[0003] To improve lamination quality and prevent air bubbles from forming between the protective film and the touchscreen, existing lamination equipment generally incorporates a pressure roller structure. After the protective film is initially applied, the pressure roller rolls along the touchscreen surface to press it down, expelling air between the film and the screen through pressure. Since the touchscreen rests on the worktable solely on its own weight and lacks an effective positioning constraint structure, rolling friction is generated between the pressure roller and the touchscreen surface during the rolling process. When this friction exceeds the static friction between the touchscreen and the worktable, it can easily cause horizontal displacement of the touchscreen, resulting in substandard dimensional accuracy of the lamination. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, the purpose of this utility model is to provide a coating device for touch screen production, so as to at least partially solve the problems mentioned in the background art.

[0005] The technical solution adopted by this utility model is as follows: This utility model proposes a coating device for touch screen production, comprising: The workbench has a negative pressure adsorption chamber inside, and a negative pressure adsorption hole is opened through its upper surface, and the negative pressure adsorption hole is connected to the negative pressure adsorption chamber. The template has multiple sets of different specifications. The upper surface of the template has a placement groove for placing the touch screen. A negative pressure positioning hole is opened through the placement groove. The negative pressure positioning hole is connected to the negative pressure adsorption hole corresponding to the coverage area of ​​the placement groove. The laminating mechanism is configured to reciprocate along the worktable to laminate a touchscreen that is adsorbed and positioned on a template.

[0006] Furthermore, the worktable is provided with two sets of moving mechanisms. Each moving mechanism includes a moving motor, a screw, a guide rod, and a moving plate. The moving motor is fixedly mounted on the worktable, the screw is rotatably mounted on the worktable, and the screw is connected to the output shaft of the moving motor. The guide rod is fixedly mounted on the worktable, and the moving plate is threadedly connected to the screw and slidably mounted on the guide rod. The laminating mechanism is connected to the moving plate of one set of moving mechanisms. The moving plate of the other set of moving mechanisms is provided with a limiting plate, and the limiting plate is provided with a distance sensor. The motor of the moving mechanism connected to the laminating mechanism is electrically connected to the distance sensor, and the distance sensor is used to monitor the moving position of the laminating mechanism.

[0007] Furthermore, the workbench is provided with a position indicator plate, the position indicator plate is provided with scale lines, and a set of movable plates connected to the limiting plate are provided with two sets of indicator heads at both ends, the indicator heads being configured to slide on the outside of the position indicator plate via the movable plates.

[0008] Furthermore, the film coating mechanism includes a support frame, a film tube, a lifting plate, and a pressure roller. The support frame is fixedly mounted on a set of movable plates, the film tube is rotatably mounted on the support frame, the lifting plate is configured to move up and down on the support frame, and the pressure roller is rotatably mounted on the lifting plate.

[0009] Furthermore, the support frame is equipped with a lifting cylinder, and the lifting plate is connected to the piston end of the lifting cylinder. The lifting plate is driven to rise and fall by the extension and retraction of the lifting cylinder.

[0010] Furthermore, the template is shorter than the workbench.

[0011] Furthermore, one of the template and the workbench is provided with a positioning groove, and the other is provided with a positioning post.

[0012] Furthermore, the negative pressure adsorption chamber is connected to an external air pump via a trachea.

[0013] The technical solution provided by this utility model has the following beneficial effects: (1) The collaborative structure of negative pressure adsorption chamber, negative pressure adsorption hole and template negative pressure positioning hole is adopted to limit the template and the touch placed in the template placement groove. Compared with traditional gravity positioning, this scheme enables the touch screen to remain stable against friction when pressed by the pressure roller, and completely solves the displacement problem.

[0014] (2) The template is customized according to the specifications of the touch screen. The template covers the non-placement area adsorption holes to prevent negative pressure leakage and ensure adsorption stability. Furthermore, the negative pressure positioning holes in the placement slot and the negative pressure adsorption holes are connected to fix the touch screen throughout the process, avoiding the bonding offset caused by displacement, and meeting the adsorption positioning requirements of touch screens of different sizes. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of a coating device for touch screen production according to an embodiment of this utility model. Figure 1 ; Figure 2 A schematic diagram of the overall structure of a coating device for touch screen production according to an embodiment of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the template and workbench of a coating device for touch screen production according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a coating device for touch screen production according to an embodiment of the present invention, viewed from below. Figure 5 This is a side-view perspective sectional view of a coating device for touch screen production according to an embodiment of the present invention.

[0016] The components include: 1. workbench; 2. negative pressure adsorption chamber; 3. negative pressure adsorption hole; 4. template; 5. placement groove; 6. negative pressure positioning hole; 7. moving motor; 8. screw; 9. guide rod; 10. moving plate; 11. limiting plate; 12. distance sensor; 13. position indicator plate; 14. indicator head; 15. support frame; 16. membrane tube; 17. lifting plate; 18. pressure roller; 19. lifting cylinder; 20. positioning groove; 21. positioning column; 22. air pump.

[0017] The accompanying drawings are provided to further understand the embodiments and form part of the specification. They are used together with the embodiments for explanation and do not constitute a limitation on the embodiments. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection.

[0019] In the description of the embodiments, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments.

[0020] See Figures 1-5In this embodiment, the present invention provides a coating device for touch screen production, including a worktable 1, a template 4, and a coating mechanism. The worktable 1 has a negative pressure adsorption chamber 2, and a negative pressure adsorption hole 3 is formed through its upper surface, which is connected to the negative pressure adsorption chamber 2. The template 4 has multiple sets of different specifications, and the upper surface of the template 4 has a placement groove 5 for placing the touch screen. A negative pressure positioning hole 6 is formed through the placement groove 5, which is connected to the negative pressure adsorption hole 3 corresponding to the coverage area of ​​the placement groove 5. In use, the template 4 is first processed and produced according to the specifications of the touch screen to be coated, so that the specifications of the placement groove 5 on the template 4 match the touch screen. When the template 4 is placed on the worktable 1, the template 4 can cover the negative pressure adsorption holes 3 in the area of ​​the touch screen outside the placement area on the worktable 1 to prevent air leakage, and the touch screen is adsorbed and fixed on the template 4 through the penetration of the negative pressure positioning hole 6 on the placement groove 5 and the negative pressure adsorption hole 3. The coating mechanism is configured to move back and forth along the worktable 1 to coat the touch screen adsorbed and positioned on the template 4.

[0021] See Figure 3 and Figure 4 In this embodiment, the workbench 1 is provided with two sets of moving mechanisms. The moving mechanism includes a moving motor 7, a screw 8, a guide rod 9, and a moving plate 10. The moving motor 7 is fixedly mounted on the workbench 1, the screw 8 is rotatably mounted on the workbench 1, and the screw 8 is connected to the output shaft of the moving motor 7. The guide rod 9 is fixedly mounted on the workbench 1, and the moving plate 10 is threadedly connected to the screw 8 and slidably mounted on the guide rod 9. The film coating mechanism is connected to the moving plate 10 of one set of moving mechanisms. The moving plate 10 of the other set of moving mechanisms is provided with a limiting plate 11, and a distance sensor 12 is provided on the limiting plate 11. The motor of the moving mechanism connected to the film coating mechanism is electrically connected to the distance sensor 12. The distance sensor 12 is used to monitor the moving position of the film coating mechanism.

[0022] In practical use, the moving motor 7 is started, which drives the screw 8 to rotate. Under the drive of the screw 8 and the guidance of the guide rod 9, the position of the moving plate 10 can be adjusted. First, according to the size of the touch screen to be laminated, a set of moving mechanisms is started. The position of the limiting plate 11 is adjusted by moving the moving plate 10 through this set of moving mechanisms. Then, another set of moving mechanisms is started. The position of the laminating mechanism is moved by moving the moving plate 10 through this set of moving mechanisms. The laminating mechanism laminates the touch screen during the movement until the distance between the moving plate 10 and the limiting plate 11 reaches the set threshold. At this time, the laminating mechanism stops moving, and the laminating action of the entire touch screen is completed.

[0023] See Figure 3In this embodiment, the workbench 1 is provided with a position indicator plate 13, which is provided with scale lines. A set of movable plates 10 connected to the limiting plate 11 are provided with two sets of indicator heads 14 at both ends. The indicator heads 14 are configured to slide on the outside of the position indicator plate 13 through the movable plates 10. The position of the limiting plate 11 is observed and positioned by the cooperation of the indicator heads 14 and the scale lines.

[0024] See Figure 3 In this embodiment, the film coating mechanism includes a support frame 15, a film tube 16, a lifting plate 17, and a pressure roller 18. The support frame 15 is fixedly mounted on a set of movable plates 10, the film tube 16 is rotatably mounted on the support frame 15, the lifting plate 17 is configured to lift and lower on the support frame 15, and the pressure roller 18 is rotatably mounted on the lifting plate 17.

[0025] It should be noted that the rotation of the membrane tube 16 on the support frame 15 and the replacement are existing technologies, so they will not be described in detail in this embodiment.

[0026] See Figure 3 In this embodiment, the support frame 15 is provided with a lifting cylinder 19, and the lifting plate 17 is connected to the piston end of the lifting cylinder 19. The lifting plate 17 is driven to rise and fall by the extension and retraction of the lifting cylinder 19. When the lifting plate 17 descends and drives the pressure roller 18 to press on the upper surface of the protective film, the protective film is pressed on the touch screen as the support frame 15 moves, and the air bubbles between the two are rolled out.

[0027] It should be noted that the depth of the placement groove 5 is consistent with the thickness of the touch screen. When the touch screen is placed in the placement groove 5, the upper surface of the touch screen is flush with the upper surface of the template 4 to ensure the pressing effect of the coating mechanism pressure roller 18.

[0028] See Figure 1 and Figure 2 In this embodiment, the length of the template 4 is shorter than that of the workbench 1. When the film-coating mechanism moves to one end, the film-coating mechanism can be completely moved away from the top of the template 4, which facilitates the vertical disassembly, installation and replacement of the template 4.

[0029] See Figure 3 In this embodiment, one of the template 4 and the workbench 1 is provided with a positioning groove 20, and the other is provided with a positioning post 21. Through the cooperation of the positioning post 21 and the positioning groove 20, the template 4 and the workbench 1 are positioned and installed, and the template 4 is stably adsorbed on the workbench 1 under the action of negative pressure suction.

[0030] See Figures 1-4 In this embodiment, the negative pressure adsorption chamber 2 is connected to an external air pump 22 through an air pipe. The air pump 22 draws negative pressure into the negative pressure adsorption chamber 2, thereby fixing the template 4 on the workbench 1 and fixing the touch screen on the template 4.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] The embodiments have been described above, and such description is not restrictive. The figures shown are only one embodiment, and the actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit, such design should fall within the scope of protection.

Claims

1. A coating apparatus for touchscreen manufacturing, characterized in that, include: The workbench (1) has a negative pressure adsorption chamber (2) inside, and a negative pressure adsorption hole (3) is opened through its upper surface. The negative pressure adsorption hole (3) is connected to the negative pressure adsorption chamber (2). Template (4) is provided with multiple sets of different specifications. The upper surface of the template (4) is provided with a placement groove (5) for placing a touch screen. A negative pressure positioning hole (6) is provided through the placement groove (5). The negative pressure positioning hole (6) is connected to the negative pressure adsorption hole (3) corresponding to the coverage area of ​​the placement groove (5). The laminating mechanism is configured to reciprocate along the worktable (1) to laminate the touch screen that is adsorbed and positioned on the template (4).

2. The coating apparatus for touch screen production according to claim 1, characterized in that, The workbench (1) is provided with two sets of moving mechanisms. The moving mechanism includes a moving motor (7), a screw (8), a guide rod (9), and a moving plate (10). The moving motor (7) is fixed on the workbench (1). The screw (8) is rotatably mounted on the workbench (1). The screw (8) is connected to the output shaft of the moving motor (7). The guide rod (9) is fixed on the workbench (1). The moving plate (10) is threadedly connected to the screw (8) and slidably mounted on the guide rod (9). The film coating mechanism is connected to the moving plate (10) of one set of moving mechanisms. The moving plate (10) of the other set of moving mechanisms is provided with a limiting plate (11). The limiting plate (11) is provided with a distance sensor (12). The motor of the moving mechanism connected to the film coating mechanism is electrically connected to the distance sensor (12). The distance sensor (12) is used to monitor the moving position of the film coating mechanism.

3. The coating apparatus for touch screen production according to claim 2, characterized in that, The workbench (1) is provided with a position indicator plate (13), the position indicator plate (13) is provided with scale lines, and a set of movable plates (10) connected to the limiting plate (11) is provided with two sets of indicator heads (14) at both ends. The indicator heads (14) are configured to slide on the outside of the position indicator plate (13) through the movable plates (10).

4. The coating apparatus for touch screen production according to claim 2, characterized in that, The film coating mechanism includes a support frame (15), a film tube (16), a lifting plate (17), and a pressure roller (18). The support frame (15) is fixedly mounted on a set of movable plates (10). The film tube (16) is rotatably mounted on the support frame (15). The lifting plate (17) is configured to lift and lower on the support frame (15). The pressure roller (18) is rotatably mounted on the lifting plate (17).

5. The coating apparatus for touch screen production according to claim 4, characterized in that, The support frame (15) is equipped with a lifting cylinder (19), and the lifting plate (17) is connected to the piston end of the lifting cylinder (19).

6. The coating apparatus for touch screen production according to claim 1, characterized in that, The template (4) is shorter than the workbench (1).

7. The coating apparatus for touch screen production according to claim 1, characterized in that, One of the template (4) and the workbench (1) is provided with a positioning groove (20), and the other is provided with a positioning post (21).

8. The coating apparatus for touch screen production according to claim 1, characterized in that, The negative pressure adsorption chamber (2) is connected to an external air pump (22) via an air pipe.

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