Bubble-proof touchpad surface attachment structure

Abstract

The utility model discloses a kind of anti-bubble touchpad surface attachment structure, it is related to touchpad film sticking equipment technical field, the anti-bubble touchpad surface attachment structure includes workbench, touchpad positioning mechanism and attachment mechanism, the top of workbench is equipped with horizontal shift module, the touchpad positioning mechanism is slidably installed on the workbench by horizontal shift module, the one side of workbench top is equipped with lifting module, the inside of lifting module is slidably installed with connecting plate, the attachment mechanism is slidably connected with the lifting module by connecting plate, the touchpad positioning mechanism is composed of inclination module and positioning module, the present scheme solves the air bubble that current attachment equipment will be sealed in between touchpad and protective film in the process of using, form bad or defect, usually need to be eliminated by external auxiliary roll to bubble, increase work flow, and there is the problem of residual bubble not being eliminated easily.

Description

Technical Field

[0001] This utility model relates to the technical field of touch panel film application equipment, specifically to an anti-bubble touch panel surface application structure. Background Technology

[0002] A touchpad, also known as a touchscreen or touch panel, is a sensor-based liquid crystal display device that receives input signals from touch. When a graphic button on the screen is touched, the haptic feedback system drives various connected devices according to a pre-programmed program. It can replace mechanical button panels and create vivid audio-visual effects through the liquid crystal display. Generally, a protective film is applied to the touchpad's contact surface to protect it. Currently, the application of this film is mainly done through a combination of machines and manual labor. First, the film is laid flat on the touchscreen, and then further processing is done manually. This flat-laying method still has the defect of air bubbles, thus requiring manual assistance.

[0003] Existing bonding equipment can trap air bubbles between the touchpad and the protective film during use, resulting in defects or flaws. These bubbles usually need to be removed by external auxiliary rollers, which increases the workload and can easily leave residual bubbles. Therefore, we propose an anti-bubble touchpad surface bonding structure to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-bubble touch panel surface bonding structure to solve the problem mentioned in the background art that air bubbles are trapped between the touch panel and the protective film during use of existing bonding equipment, forming defects or flaws. Usually, external auxiliary rollers are needed to eliminate the bubbles, which increases the workflow and easily leads to the problem of residual bubbles not being eliminated.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-bubble touchpad surface attachment structure, comprising a worktable, a touchpad positioning mechanism, and an attachment mechanism. A transverse module is installed on the top of the worktable, and the touchpad positioning mechanism is slidably mounted on the worktable via the transverse module. A lifting module is installed on one side of the top of the worktable, and a connecting plate is slidably installed inside the lifting module. The attachment mechanism is slidably connected to the lifting module via the connecting plate. The touchpad positioning mechanism consists of a tilting module and a positioning module.

[0006] Preferably, the tilting module includes a movable plate, with a first spring installed at both ends of one side of the top of the movable plate, and a third spring installed at both ends of the other side of the top of the movable plate. A second spring is installed between the first spring and the third spring through the movable plate. The lengths of the first spring, the second spring, and the third spring decrease sequentially. A hinge structure is installed at the top of the first spring, the second spring, and the third spring.

[0007] Preferably, the positioning module includes a positioning plate, a first positioning groove is provided on the top of the positioning plate, an internal groove is provided inside the positioning plate, a plurality of suction cups are evenly installed inside the first positioning groove, the suction cups are connected to the internal groove, and a negative pressure pump is installed on one side of the outer wall of the positioning plate, the negative pressure pump is connected to the internal groove through an air supply pipe.

[0008] Preferably, the positioning plate is fixedly installed to the tilting module via a hinge structure. The hinge structure includes a first U-shaped plate, a second U-shaped plate, and a fixing rod. The first U-shaped plate and the second U-shaped plate are arranged opposite to each other via the fixing rod. The fixing rod is installed on the upper part of the first U-shaped plate, and both ends of the fixing rod pass through the first U-shaped plate and are rotatably connected to the second U-shaped plate.

[0009] Preferably, the attachment mechanism includes an inverted U-shaped frame, with multiple sets of conveying rollers evenly distributed inside the inverted U-shaped frame. The conveying rollers are rotatably connected to the inverted U-shaped frame, and the outer walls of the conveying rollers are connected by a conveyor belt. A conveying motor is installed at one end of the upper set of conveying rollers, and a second positioning groove is provided on the outer surface of the conveyor belt.

[0010] Preferably, the first spring, the second spring, and the third spring are all equipped with telescopic rods.

[0011] Preferably, the wire diameter of the first spring is smaller than that of the second spring, and the wire diameter of the second spring is smaller than that of the third spring.

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

[0013] (1) This utility model, through the adaptive angle design of the tilting module and the gradual rolling method of the conveying roller, conveying motor and conveying belt on the protective film, can make the protective film gradually bonded from one end to the other. With the vacuum-fixed touch panel, air can be discharged to the maximum extent and bubbles can be eliminated. This solves the problem that air bubbles are sealed between the touch panel and the protective film during the use of existing bonding equipment, forming defects or flaws. Usually, external auxiliary rollers are needed to eliminate the bubbles, which increases the workflow and makes it easy for residual bubbles to remain.

[0014] (2) A vacuum fixing system is formed by the built-in groove, suction cup, negative pressure pump and air supply pipe. The built-in groove is drawn into negative pressure through the air supply pipe, and the suction cup tightly adheres to the bottom of the touch panel to achieve rigid fixing of the touch panel and avoid displacement during the application. The combination of three sets of springs, hinge structure and telescopic rod can ensure the stability of the tilt posture of the positioning plate and the touch panel. The transmission of the conveyor belt can ensure the smooth delivery of the protective film, thereby improving the overall consistency and yield of the touch panel application. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the tilting module structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the positioning module of this utility model;

[0018] Figure 4 This is a schematic diagram of the attachment mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the attachment mechanism of this utility model;

[0020] Figure 6 This is a schematic diagram of the attached component of this utility model;

[0021] In the diagram: 1. Workbench; 2. Touchpad positioning mechanism; 3. Tilt module; 31. Moving plate; 32. First spring; 33. Second spring; 34. Third spring; 35. Hinge structure; 351. First U-shaped plate; 352. Second U-shaped plate; 353. Fixed rod; 36. Telescopic rod; 4. Positioning module; 41. Positioning plate; 42. First positioning groove; 43. Internal groove; 44. Suction cup; 45. Negative pressure pump; 46. Air supply pipe; 5. Attachment mechanism; 51. Inverted U-shaped frame; 52. Conveying roller; 53. Conveying motor; 54. Conveying belt; 55. Second positioning groove; 6. Lateral movement module; 7. Lifting module; 8. Connecting plate; 11. PCB board; 12. Protective layer; 13. Through hole. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-5This utility model provides an embodiment of an anti-bubble touchpad surface attachment structure, including a worktable 1, a touchpad positioning mechanism 2, and an attachment mechanism 5. A horizontal movement module 6 is installed on the top of the worktable 1. The touchpad positioning mechanism 2 is slidably mounted on the worktable 1 via the horizontal movement module 6. A lifting module 7 is installed on one side of the top of the worktable 1. A connecting plate 8 is slidably installed inside the lifting module 7. The attachment mechanism 5 is slidably connected to the lifting module 7 via the connecting plate 8. Please refer to [link to relevant documentation]. Figure 4 and Figure 5 The attaching mechanism 5 includes an inverted U-shaped frame 51. Multiple sets of conveyor rollers 52 are evenly distributed inside the inverted U-shaped frame 51. The conveyor rollers 52 are rotatably connected to the inverted U-shaped frame 51, and their outer walls are connected via a conveyor belt 54. A conveyor motor 53 is installed at one end of the upper set of conveyor rollers 52. A second positioning groove 55 is provided on the outer surface of the conveyor belt 54. The conveyor rollers 52 inside the inverted U-shaped frame 51 are driven by the conveyor motor 53 and driven by the conveyor belt 54, enabling continuous conveying of the protective film. The second positioning groove 55 on the surface of the conveyor belt 54 is used for precise positioning of the protective film and alignment with the touch panel, ensuring that the edge of the protective film is aligned with the touch panel. The touch panel positioning mechanism 2 consists of a tilting module 3 and a positioning module 4.

[0024] Please see Figure 2 The tilting module 3 includes a movable plate 31. A first spring 32 is installed at both ends of one side of the top of the movable plate 31, and a third spring 34 is installed at both ends of the other side of the top of the movable plate 31. A second spring 33 is installed between the first spring 32 and the third spring 34 through the movable plate 31. The lengths of the first spring 32, the second spring 33 and the third spring 34 decrease sequentially. A hinge structure 35 is installed at the top of the first spring 32, the second spring 33 and the third spring 34.

[0025] Please see Figure 3 The positioning module 4 includes a positioning plate 41. A first positioning groove 42 is provided on the top of the positioning plate 41. An internal groove 43 is provided inside the positioning plate 41. Multiple sets of suction cups 44 are evenly installed inside the first positioning groove 42, and the suction cups 44 are connected to the internal groove 43. A negative pressure pump 45 is installed on one side of the outer wall of the positioning plate 41, and the negative pressure pump 45 is connected to the internal groove 43 through an air supply pipe 46. (Please refer to...) Figure 2The positioning plate 41 is fixedly installed to the tilting module 3 via a hinge structure 35. The hinge structure 35 includes a first U-shaped plate 351, a second U-shaped plate 352, and a fixing rod 353. The first U-shaped plate 351 and the second U-shaped plate 352 are arranged opposite each other via the fixing rod 353. The fixing rod 353 is installed on the upper part of the first U-shaped plate 351, and the two ends of the fixing rod 353 pass through the first U-shaped plate 351 and are rotatably connected to the second U-shaped plate 352. The first positioning groove 42 on the top of the positioning plate 41 is used for the initial physical positioning of the touch panel to ensure that the touch panel is placed in the preset area. The built-in groove 43, suction cup 44, negative pressure pump 45, and air supply pipe 46 constitute a vacuum fixing system. After the negative pressure pump 45 is started, the built-in groove 43 is drawn into negative pressure through the air supply pipe 46, and the suction cup 44 tightly adheres to the bottom of the touch panel to fix the touch panel and prevent displacement during attachment.

[0026] The adhesion force of the attachment mechanism 5 to the protective film is less than that of the touchpad. During use, an external vision system is needed to identify the real-time positions of the touchpad and the protective film. The horizontal position of the touchpad positioning mechanism 2 is adjusted by the horizontal movement module 6, the height of the attachment mechanism 5 is adjusted by the lifting module 7, and the initial position of the protective film is adjusted by the conveyor motor 53, aligning one end of the protective film, one end of the touchpad, and the bottom of the conveyor belt 54 to facilitate subsequent attachment of the protective film to the touchpad surface. A pre-formed elastic support base with a natural tilt angle is created by combining three springs of decreasing length: the first spring 32, the second spring 33, and the third spring 34. This allows the top hinge structure 35 and the positioning module 4 to naturally tilt. The hinge structure 35 allows the positioning plate 41 to rotate slightly around the fixed rod 353, thus creating an adaptive tilt angle. During attachment, the touchpad tilts slightly with the attachment pressure, allowing the protective film to adhere gradually from the beginning to the end, reducing air pockets. After the starting end of the touchpad is attached to the starting end of the protective film, the attachment mechanism 5 is slowly lowered by the lifting module 7, and the conveyor belt 54 is rotated to the upper right by the conveyor motor 53. At the same time, the touchpad positioning mechanism 2 is slowly moved to the right by the transverse module 6. With the slight tilt of the touchpad, the protective film is gradually rolled onto the surface of the touchpad from the starting end. The elastic support of the tilting module 3 makes the touchpad tilt adaptively with the rolling direction. With the uniform rolling force, the air generated during the attachment process is discharged to the end, avoiding the residue of air bubbles.

[0027] Please see Figure 2 The first spring 32, the second spring 33, and the third spring 34 are all equipped with telescopic rods 36. The telescopic rods 36 are embedded inside the springs to prevent the springs from bending under stress, thereby ensuring the stability of the support.

[0028] Please see Figure 2The wire diameter of the first spring 32 is smaller than that of the second spring 33, and the wire diameter of the second spring 33 is smaller than that of the third spring 34. Due to the difference in wire diameter between the first spring 32, the second spring 33, and the third spring 34, the larger the wire diameter, the greater the spring stiffness. This allows the larger deformation of the first spring 32 and the smaller deformation of the third spring 34 to provide a balanced rebound force to the positioning plate 41, thus avoiding uneven force distribution on the positioning plate 41.

[0029] refer to Figure 6 The attached component includes at least a PCB board 11 and a protective layer 12. The PCB board 11 is the component of the touch panel mentioned above, and the protective layer 12 is the protective film mentioned above. Several small through holes 13 can be opened on the PCB board 11. The through holes 13 serve as vent holes. Without affecting the sensitivity of the circuit, the number of vent holes can be increased as much as possible to prevent gas from being sealed between the two layers and further prevent the generation of air bubbles.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A bubble-proof touchpad surface attachment structure, comprising a worktable (1), a touchpad positioning mechanism (2), and an attachment mechanism (5), characterized in that: A horizontal moving module (6) is installed on the top of the workbench (1). The touch panel positioning mechanism (2) is slidably installed on the workbench (1) through the horizontal moving module (6). A lifting module (7) is installed on one side of the top of the workbench (1). A connecting plate (8) is slidably installed inside the lifting module (7). The attaching mechanism (5) is slidably connected to the lifting module (7) through the connecting plate (8). The touch panel positioning mechanism (2) is composed of a tilting module (3) and a positioning module (4).

2. The anti-bubble touchpad surface attachment structure according to claim 1, characterized in that: The tilting module (3) includes a movable plate (31). A first spring (32) is installed at both ends of one side of the top of the movable plate (31), and a third spring (34) is installed at both ends of the other side of the top of the movable plate (31). A second spring (33) is installed between the first spring (32) and the third spring (34) through the movable plate (31). The lengths of the first spring (32), the second spring (33) and the third spring (34) decrease sequentially. A hinge structure (35) is installed at the top of the first spring (32), the second spring (33) and the third spring (34).

3. The anti-bubble touchpad surface attachment structure according to claim 1, characterized in that: The positioning module (4) includes a positioning plate (41), a first positioning groove (42) is provided on the top of the positioning plate (41), and an internal groove (43) is provided inside the positioning plate (41). Multiple sets of suction cups (44) are evenly installed inside the first positioning groove (42). The suction cups (44) are connected to the internal groove (43). A negative pressure pump (45) is installed on one side of the outer wall of the positioning plate (41). The negative pressure pump (45) is connected to the internal groove (43) through an air supply pipe (46).

4. The anti-bubble touchpad surface attachment structure according to claim 3, characterized in that: The positioning plate (41) is fixedly installed with the tilting module (3) through a hinge structure (35). The hinge structure (35) includes a first U-shaped plate (351), a second U-shaped plate (352), and a fixing rod (353). The first U-shaped plate (351) and the second U-shaped plate (352) are arranged opposite to each other through the fixing rod (353). The fixing rod (353) is installed on the upper part of the first U-shaped plate (351). The two ends of the fixing rod (353) pass through the first U-shaped plate (351) and are rotatably connected to the second U-shaped plate (352).

5. The anti-bubble touchpad surface attachment structure according to claim 1, characterized in that: The attaching mechanism (5) includes an inverted U-shaped frame (51), with multiple sets of conveying rollers (52) evenly distributed inside the inverted U-shaped frame (51). The conveying rollers (52) are rotatably connected to the inverted U-shaped frame (51), and the outer wall of the conveying rollers (52) is connected by a conveyor belt (54). One end of the upper set of conveying rollers (52) is equipped with a conveyor motor (53), and the outer surface of the conveyor belt (54) is provided with a second positioning groove (55).

6. The anti-bubble touchpad surface attachment structure according to claim 2, characterized in that: The first spring (32), the second spring (33) and the third spring (34) are all equipped with telescopic rods (36).

7. The anti-bubble touchpad surface attachment structure according to claim 2, characterized in that: The wire diameter of the first spring (32) is smaller than that of the second spring (33), and the wire diameter of the second spring (33) is smaller than that of the third spring (34).

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