Diffusion film mounting equipment

Abstract

The utility model discloses diffusion film mounting and pasting equipment which comprises a display screen alignment platform, a display screen film tearing platform and a film pasting platform which are distributed at equal intervals, a transverse moving mechanism is arranged at the adjacent position of the display screen alignment platform, the display screen film tearing platform and the film pasting platform, and a lifting air cylinder is arranged at the moving end of the transverse moving mechanism. A transverse supporting arm is arranged at the moving end of the lifting air cylinder, four display screen taking and placing jigs distributed at equal intervals are arranged on the transverse supporting arm, three of the display screen taking and placing jigs correspond to the display screen alignment platform, the display screen film tearing platform and the film pasting platform in a one-to-one mode, and the display screen film tearing mechanism is used for tearing a film layer of a display screen on the display screen film tearing platform. A diffusion film pasting mechanism is arranged at the position adjacent to the film pasting platform and used for pasting a diffusion film to the display screen with the film layer torn off on the film pasting platform. The utility model has the characteristics of compact structure, space saving, stronger automation performance, better assembly quality and the like.

Description

Technical Field

[0001] The utility model relates to display screen assembly equipment, in particular to diffusion film mounting equipment. Background Art

[0002] In the production process of liquid crystal display screens, it is necessary to attach the diffusion film of the display screen. Since the traditional display diffusion film attachment is done manually, the actual production often requires diffusion film installation equipment to complete it; for the existing diffusion film attachment machine, please refer to the Chinese patent publication with publication number CN115453784B and the name "A display backlight module optical film high-precision overlap machine", which records: "A display backlight module optical film high-precision overlap machine includes a guide platform, on which are arranged in sequence a feed line, a first diffusion bonding mechanism, a rubber strip bonding mechanism, a light-enhancing bonding mechanism, a second diffusion bonding mechanism and a discharge flow Waterline, between adjacent mechanisms and on the guide platform, a guide mechanism is provided, one side of the guide platform is provided with a first diffusion film installation mechanism, a rubber strip installation mechanism, a light-enhancing film installation mechanism and a second diffusion film installation mechanism in sequence, the first diffusion film installation mechanism is provided on one side of the first diffusion bonding mechanism, the rubber strip installation mechanism is provided on one side of the rubber strip bonding mechanism, the light-enhancing film installation mechanism is provided on one side of the light-enhancing bonding mechanism, the shaping adopts motor shaping, all machine type switching mechanisms are driven by motors, the machine type formula can be stored and retrieved when switching the machine type, the machine type can be quickly switched, and the problems of loose film material shaping cylinder and long line change time are solved. Although this type of equipment can achieve the function of diffusion film assembly, its various components are arranged in sequence along the transmission direction, which not only causes the production line to be too long, but also easily causes dust pollution and other problems during the product attachment process, which is not conducive to improving production capacity. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a display screen diffusion film attachment which has a compact structure, saves space, has stronger automation performance and better assembly quality, in view of the deficiencies of the prior art.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions.

[0005] A diffusion film installation device comprises a display screen alignment platform, a display screen film tearing platform and a film pasting platform which are evenly spaced. A transverse movement mechanism is arranged adjacent to the display screen alignment platform, the display screen film tearing platform and the film pasting platform. A lifting cylinder is arranged at the moving end of the transverse movement mechanism. A transverse support arm is arranged at the moving end of the lifting cylinder. Four display screen pick-up and placement fixtures which are evenly spaced are arranged on the transverse support arm. Three of the display screen pick-up and placement fixtures correspond to the display screen alignment platform, the display screen film tearing platform and the film pasting platform one by one. A display screen film tearing mechanism is arranged adjacent to the display screen film tearing platform. The display screen film tearing mechanism is used to tear off the film layer of the display screen on the display screen film tearing platform. A diffusion film pasting mechanism is arranged adjacent to the film pasting platform. The diffusion film pasting mechanism is used to attach the diffusion film to the display screen after the film layer on the film pasting platform is torn off.

[0006] Preferably, the display screen pick-up and placement jig is a flat jig, the bottom surface of the display screen pick-up and placement jig is densely covered with first negative pressure suction holes, and the top surface of the display screen pick-up and placement jig is provided with a negative pressure air nozzle connected to the first negative pressure suction holes.

[0007] Preferably, the top surface of the display screen alignment platform, the top surface of the display screen film tearing platform and the top surface of the film sticking platform are all densely covered with second negative pressure suction holes.

[0008] Preferably, it includes a diffusion film material box, a diffusion film conveying mechanism, a diffusion film alignment platform and a diffusion film tape tearing mechanism, the diffusion film conveying mechanism is used to take out the diffusion film with tape pasted on it from the diffusion film material box and place it on the diffusion film alignment platform, the diffusion film pasting mechanism is used to pick up the aligned diffusion film from the diffusion film alignment platform, and the diffusion film tape tearing mechanism is used to tear off the tape on the diffusion film picked up by the diffusion film pasting mechanism.

[0009] Preferably, the diffusion film pasting mechanism comprises an X-axis motion mechanism, a Z-axis motion mechanism is disposed at a motion end of the X-axis motion mechanism, and a film pasting actuator is disposed at a motion end of the Z-axis motion mechanism.

[0010] Preferably, it includes a machine platform, and the display screen alignment platform, display screen film tearing platform and film pasting platform, transverse movement mechanism, display screen film tearing mechanism, diffusion film pasting mechanism, diffusion film material box, diffusion film conveying mechanism, diffusion film alignment platform and diffusion film tape tearing mechanism are all arranged on the machine platform.

[0011] Preferably, a movable platform is provided adjacent to the machine platform, and an air compressor for providing an air source is provided on the movable platform.

[0012] Preferably, a dust-free cabinet is covered and fixed on the machine platform.

[0013] In the diffusion film installation equipment disclosed by the utility model, the display screen alignment platform, the display screen film tearing platform and the film pasting platform, the lateral movement mechanism, the display screen film tearing mechanism and the diffusion film pasting mechanism are all fixed on the same machine platform, and the overall structure of the equipment is more compact, which can effectively save equipment space. During the assembly process, the display screen film tearing mechanism is used to tear off the film layer of the display screen on the display screen film tearing platform, and then the diffusion film pasting mechanism is used to attach the diffusion film to the display screen after the film layer is torn off on the film pasting platform, thereby realizing the automatic assembly function of the diffusion film, so the automation performance is stronger. In addition, the utility model only needs the lateral movement mechanism to shift an evenly spaced displacement each time, so that the four display screen pick-up and place fixtures can synchronously perform the actions of loading, transporting between platforms, and unloading. It can not only improve the assembly work efficiency, but also ensure better consistency of the display screen, while improving the assembly quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional diagram of the diffusion film mounting equipment of the utility model;

[0015] Figure 2 This is a structural diagram of the diffusion film mounting equipment of the utility model after being assembled with a dust-free cabinet. DETAILED DESCRIPTION

[0016] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0017] The utility model discloses a diffusion film mounting device, combined with Figure 1 to Figure 2 As shown, it includes a display screen alignment platform 1, a display screen film tearing platform 2 and a film pasting platform 3 which are evenly spaced. A transverse movement mechanism 4 is provided adjacent to the display screen alignment platform 1, the display screen film tearing platform 2 and the film pasting platform 3. A lifting cylinder 5 is provided at the moving end of the transverse movement mechanism 4. A transverse support arm 6 is provided at the moving end of the lifting cylinder 5. Four display screen pick-up and placement fixtures 7 which are evenly spaced are provided on the transverse support arm 6. Three of the display screen pick-up and placement fixtures 7 correspond to the display screen alignment platform 1, the display screen film tearing platform 2 and the film pasting platform 3 one by one. A display screen film tearing mechanism 8 is provided adjacent to the display screen film tearing platform 2. The display screen film tearing mechanism 8 is used to tear off the film layer of the display screen on the display screen film tearing platform 2. A diffusion film pasting mechanism 9 is provided adjacent to the film pasting platform 3. The diffusion film pasting mechanism 9 is used to attach the diffusion film to the display screen after the film layer on the film pasting platform 3 is torn off.

[0018] In the above structure, the display screen alignment platform 1, the display screen film tearing platform 2 and the film pasting platform 3, the transverse movement mechanism 4, the display screen film tearing mechanism 8 and the diffusion film pasting mechanism 9 are all fixed on the same machine platform 14, and the overall structure of the equipment is more compact, which can effectively save equipment space.

[0019] Furthermore, during the assembly process, the display screen film tearing mechanism 8 is used to tear off the film layer of the display screen on the display screen film tearing platform 2, and then the diffusion film is attached to the display screen on the film sticking platform 3 after the film layer is torn off by the diffusion film sticking mechanism 9, thereby realizing the automatic assembly function of the diffusion film, so the automation performance is stronger.

[0020] In addition, the utility model is provided with a transverse support arm 6 on the lifting cylinder 5 operated by the transverse movement mechanism 4, and four display screen pick-up and placement jigs 7 are arranged on the transverse support arm 6 at equal intervals. The transverse movement mechanism 4 can drive the transverse support arm 6 and the four display screen pick-up and placement jigs 7 to move left and right by one station. The front end and the rear end of the four display screen pick-up and placement jigs 7 are used to load and unload the display screen, respectively. For example, the front end jig is used to pick up the unassembled display screen and place it on the display screen alignment platform 1, and then the second jig is used to pick up the aligned display screen from the display screen alignment platform 1. The display screen is placed on the display screen film tearing platform 2, and the third fixture is used to pick up the tearing display screen from the display screen film tearing platform 2 and place it on the film pasting platform 3 to wait for film pasting. Since the three display screen pick-up and place fixtures 7 correspond one-to-one to the display screen alignment platform 1, the display screen film tearing platform 2 and the film pasting platform 3, the transverse movement mechanism 4 only needs to move horizontally an evenly spaced displacement each time, so that the four display screen pick-up and place fixtures 7 can synchronously perform the actions of loading, transporting between platforms and unloading, which can not only improve the assembly work efficiency, but also ensure better consistency of the display screen, while improving the assembly quality of the product.

[0021] In order to avoid scratching the display screen or damaging the surface of the display screen, in the present embodiment, the display screen picking and placing jig 7 is a flat jig, the bottom surface of the display screen picking and placing jig 7 is densely covered with first negative pressure suction holes, and the top surface of the display screen picking and placing jig 7 is provided with a negative pressure air nozzle 70 connected to the first negative pressure suction holes.

[0022] On this basis, in order to position the workpiece on the corresponding platform after it is placed, in this embodiment, the top surface of the display screen alignment platform 1, the top surface of the display screen film tearing platform 2 and the top surface of the film pasting platform 3 are all densely covered with second negative pressure suction holes.

[0023] In actual applications, this embodiment needs to provide a negative pressure air source for the above-mentioned negative pressure mechanisms, and a positive pressure air source is also required in other mechanisms such as cylinders. In order to meet the air pressure supply, this embodiment is provided with a mobile platform 15 adjacent to the machine platform 14, and the mobile platform 15 is provided with an air compressor 16 for providing an air source.

[0024] As a preferred embodiment, the present embodiment includes a diffusion film material box 10, a diffusion film conveying mechanism 11, a diffusion film alignment platform and a diffusion film tape tearing mechanism 13. The diffusion film conveying mechanism 11 is used to take out the diffusion film with tape from the diffusion film material box 10 and place it on the diffusion film alignment platform. The diffusion film pasting mechanism 9 is used to pick up the aligned diffusion film from the diffusion film alignment platform. The diffusion film tape tearing mechanism 13 is used to tear off the tape on the diffusion film picked up by the diffusion film pasting mechanism 9. Based on the above structure, the diffusion film after the tape is torn off can be automatically provided to the diffusion film pasting mechanism 9, which is conducive to the diffusion film pasting mechanism 9 to quickly and efficiently adhere the diffusion film to the display screen of the pasting platform 3.

[0025] For the preferred structure of the diffusion film sticking mechanism 9, please refer to Figure 1 In this embodiment, the diffusion film pasting mechanism 9 includes an X-axis motion mechanism 90 , a Z-axis motion mechanism 91 is disposed at a motion end of the X-axis motion mechanism 90 , and a pasting actuator 92 is disposed at a motion end of the Z-axis motion mechanism 91 .

[0026] As a preferred mode, this embodiment includes a machine platform 14, and the display screen alignment platform 1, the display screen film tearing platform 2 and the film pasting platform 3, the lateral movement mechanism 4, the display screen film tearing mechanism 8, the diffusion film pasting mechanism 9, the diffusion film material box 10, the diffusion film conveying mechanism 11, the diffusion film alignment platform and the diffusion film tape tearing mechanism 13 are all arranged on the machine platform 14. This embodiment preferably integrates the above-mentioned mechanisms on the machine platform 14, which can make the overall structure of the equipment more compact, thereby saving equipment space. On this basis, in order to meet the dust and stain prevention process requirements, this embodiment is covered and fixed with a dust-free cabinet 17 on the machine platform 14. The dust-free cabinet 17 can be provided with components such as a door and an observation window.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the technical scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A diffusion film mounting device, characterized in that: The invention comprises a display screen alignment platform (1), a display screen film tearing platform (2) and a film pasting platform (3) which are evenly spaced. A lateral movement mechanism (4) is arranged adjacent to the display screen alignment platform (1), the display screen film tearing platform (2) and the film pasting platform (3). A lifting cylinder (5) is arranged at the moving end of the lateral movement mechanism (4). A lateral support arm (6) is arranged at the moving end of the lifting cylinder (5). Four display screen pick-up and placement jigs (7) which are evenly spaced are arranged on the lateral support arm (6). Three of the display screen pick-up and placement jigs (7) are provided on the lateral support arm. 7) corresponding to the display screen alignment platform (1), the display screen film tearing platform (2) and the film pasting platform (3) one by one; a display screen film tearing mechanism (8) is provided adjacent to the display screen film tearing platform (2); the display screen film tearing mechanism (8) is used to tear off the film layer of the display screen on the display screen film tearing platform (2); a diffusion film pasting mechanism (9) is provided adjacent to the film pasting platform (3); the diffusion film pasting mechanism (9) is used to adhere the diffusion film to the display screen after the film layer on the film pasting platform (3) is torn off.

2. The diffusion film mounting device according to claim 1, characterized in that: The display screen pick-up and placement jig (7) is a flat jig, the bottom surface of the display screen pick-up and placement jig (7) is densely covered with first negative pressure suction holes, and the top surface of the display screen pick-up and placement jig (7) is provided with a negative pressure air nozzle (70) connected to the first negative pressure suction holes.

3. The diffusion film mounting device according to claim 1, characterized in that: The top surface of the display screen alignment platform (1), the top surface of the display screen film tearing platform (2) and the top surface of the film sticking platform (3) are all densely covered with second negative pressure suction holes.

4. The diffusion film mounting device according to claim 1, characterized in that: The invention comprises a diffusion film material box (10), a diffusion film conveying mechanism (11), a diffusion film alignment platform and a diffusion film tape tearing mechanism (13), wherein the diffusion film conveying mechanism (11) is used to take out the diffusion film with tape pasted on it from the diffusion film material box (10) and place it on the diffusion film alignment platform, the diffusion film pasting mechanism (9) is used to pick up the aligned diffusion film from the diffusion film alignment platform, and the diffusion film tape tearing mechanism (13) is used to tear off the tape on the diffusion film picked up by the diffusion film pasting mechanism (9).

5. The diffusion film mounting device according to claim 1, characterized in that: The diffusion film pasting mechanism (9) comprises an X-axis motion mechanism (90), a Z-axis motion mechanism (91) is provided at the motion end of the X-axis motion mechanism (90), and a film pasting actuator (92) is provided at the motion end of the Z-axis motion mechanism (91).

6. The diffusion film mounting device according to claim 1, characterized in that: The invention comprises a machine platform (14), wherein the display screen alignment platform (1), the display screen film tearing platform (2) and the film pasting platform (3), the transverse movement mechanism (4), the display screen film tearing mechanism (8), the diffusion film pasting mechanism (9), the diffusion film material box (10), the diffusion film conveying mechanism (11), the diffusion film alignment platform and the diffusion film tape tearing mechanism (13) are all arranged on the machine platform (14).

7. The diffusion film mounting device according to claim 6, characterized in that: A movable carrier (15) is provided adjacent to the machine platform (14), and an air compressor (16) for providing an air source is provided on the movable carrier (15).

8. The diffusion film mounting device according to claim 6, characterized in that: A dust-free cabinet (17) is covered and fixed on the machine platform (14).

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