Protective film defect detection device

By introducing a movable camera detection component, a lead screw slide, and a clamping component into the protective film detection device, the problem of inconvenient fixation of the protective film in the prior art is solved, and rapid and stable detection of protective films of different sizes and widths is achieved.

CN223966500UActive Publication Date: 2026-03-03HUIZHOU HUICAI NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202520409794.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-03-03
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

Existing protective film detection devices require tightening the positioning screws multiple times when fixing protective films of different lengths and sizes, resulting in slow detection speed and inconvenience.

Method used

It adopts a movable camera detection component and a lead screw slide structure, combined with a clamping component and a limiting rod, to achieve rapid fixation and stable clamping of protective films of different lengths and widths. The adjustment accuracy and stability are improved by using a scale and an H-shaped slide rail.

Benefits of technology

It enables rapid fixation and stable clamping of the protective film, improving detection speed and convenience, and ensuring detection accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective film defect detection device which comprises a frame body, the top of the frame body is provided with a movable camera shooting detection assembly, the upper surface of the frame body is fixedly connected with a fixing plate, the top of the frame body is fixedly connected with a second fixing block, the interior of the second fixing block is movably connected with a first lead screw, and the second fixing block is fixedly connected with a second lead screw. The first lead screw is rotationally connected with the fixing plate, a sliding plate is movably connected to the outer side of the first lead screw, fixing clamps are fixedly connected to the middle positions of the tops of the sliding plate and the fixing plate, sliding grooves are formed in the two sides of the sliding plate and the two sides of the fixing plate, and clamping frames are movably connected into the sliding grooves. The distance between the fixing plate and the sliding plate can be rapidly adjusted, meanwhile, a worker can conveniently know the moving distance of the sliding plate through the graduated scale, and the worker can conveniently clamp protective films with different widths.
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Description

Technical Field

[0001] This utility model relates to the field of protective film detection technology, and in particular to a protective film defect detection device. Background Technology

[0002] During the production of protective films, testing is required. Only after the testing meets the standards can the films be shipped to customers for use.

[0003] A search revealed that CN221145918U discloses an AOI testing device for large protective films. The device uses positioning screws that pass through the movable side support plate and fit against the side of the testing frame to fix protective films of different lengths. However, since both sides need to be tightened, this is quite troublesome and reduces the testing speed. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a protective film defect detection device.

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

[0006] A protective film defect detection device includes a frame. A movable camera detection component is provided on the top of the frame. A fixed plate is fixedly connected to the upper surface of the frame. A second fixed block is fixedly connected to the top of the frame. A first lead screw is movably connected inside the second fixed block and is rotatably connected to the fixed plate. A sliding plate is movably connected to the outside of the first lead screw. A fixing clamp is fixedly connected to the middle position of the top of the sliding plate and the fixed plate. Slide grooves are provided on both sides of the sliding plate and the fixed plate. A clamping frame is movably connected in the slide groove. A clamping component is provided on the upper surface of the clamping frame and the fixing clamp. Multiple insertion ports are provided at both ends of the fixed plate and both ends of the sliding plate. A sliding sleeve is fixedly connected to one outer wall of the clamping frame and one outer wall of the fixing clamp. A round rod is movably connected inside the sliding sleeve and is inserted into its corresponding insertion port. A spring is sleeved on the outside of the round rod, and the two ends of the spring are fixed to the round rod and the sliding sleeve, respectively.

[0007] As a further embodiment of this utility model, the camera detection component includes multiple first fixing blocks, which are respectively fixed to the outer walls of both sides of the frame by bolts. A threaded rod is movably connected between two first fixing blocks located on the same side. A U-shaped frame is movably connected to the outer side of the threaded rod. Multiple cameras are fixedly connected to the bottom of the U-shaped frame. Dust detectors are fixedly connected to the inner walls of both sides of the U-shaped frame.

[0008] As a further embodiment of this utility model, a limiting rod is fixedly connected between the other two first fixing blocks located on the same side, and the U-shaped frame is slidably connected to the limiting rod.

[0009] As a further embodiment of this utility model, the clamping assembly includes a dovetail guide rail, one side of which is fixedly connected to a clamping frame, a second lead screw is movably connected to the top of the clamping frame, a clamping block is movably connected to the bottom end of the second lead screw, and the clamping block is slidably connected to the dovetail guide rail.

[0010] As a further improvement of this invention, the camera is located between the fixed plate and the sliding plate.

[0011] As a further improvement of this utility model, two scales are fixedly connected to the upper surface of the frame, and the scales are located at the bottom of the skateboard.

[0012] As a further embodiment of this utility model, one end of the threaded rod passes through the first fixing block and is fixedly connected to a knob.

[0013] As a further embodiment of this utility model, two H-shaped slide rails are fixedly connected to the upper surface of the frame, and the slide plate is slidably connected to the H-shaped slide rails.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, the distance between the fixing plate and the sliding plate can be quickly adjusted by the cooperation of the first lead screw and the sliding plate, which makes it convenient for workers to quickly fix protective films of different lengths and sizes, avoiding the time-consuming and laborious process of repeated adjustment by positioning screws, and improving the convenience of the device.

[0016] 2. In this utility model, the scale not only makes it convenient for workers to understand the distance the skateboard moves, but also allows them to directly understand the distance between the fixed plate and the skateboard, making adjustments faster and more accurate, and improving the effectiveness of the device.

[0017] 3. This utility model not only allows workers to easily clamp protective films of different widths through the cooperation of the round rod and the socket, but also enables the device to always detect the protective film in a suitable position by adjusting the position of the U-shaped frame.

[0018] 4. This utility model guides the U-shaped frame by incorporating a limiting rod, enabling it to move stably and preventing tilting during movement, thus improving the stability of the U-shaped frame's movement. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the front side of a protective film defect detection device proposed in this utility model;

[0020] Figure 2 This is a partially enlarged structural schematic diagram of a protective film defect detection device proposed in this utility model;

[0021] Figure 3 This is a schematic cross-sectional view of the sliding sleeve of a protective film defect detection device proposed in this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of the clamp structure of a protective film defect detection device proposed in this utility model.

[0023] In the diagram: 1. Frame; 2. First fixing block; 3. Fixing plate; 4. U-shaped frame; 5. Camera; 6. Dust detector; 7. Slide plate; 8. H-shaped slide rail; 9. First lead screw; 10. Second fixing block; 11. Threaded rod; 12. Scale; 13. Limiting rod; 14. Sliding sleeve; 15. Round rod; 16. Socket; 17. Spring; 18. Clamp; 19. Clamping block; 20. Dovetail guide rail; 21. Second lead screw; 22. Slide groove. Detailed Implementation

[0024] 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. The described embodiments are only some embodiments of the present utility model, not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are all within the protection scope of the present utility model.

[0025] Reference Figures 1-4A protective film defect detection device includes a frame 1. A movable camera detection assembly is mounted on the top of the frame 1. A fixing plate 3 is bolted to the upper surface of the frame 1. A second fixing block 10 is bolted to the top of the frame 1. A first lead screw 9 is rotatably connected inside the second fixing block 10 and is rotatably connected to the fixing plate 3. A sliding plate 7 is threaded to the outer side of the first lead screw 9. Fixing clamps are bolted to the middle positions of the tops of both the sliding plate 7 and the fixing plate 3. Slide grooves 22 are provided on both sides of the sliding plate 7 and the fixing plate 3. Clamping frames 18 are slidably connected within the slide grooves 22. Clamping assemblies are provided on the upper surfaces of both the clamping frames 18 and the fixing clamps. Rotating the first lead screw 9 moves the sliding plate 7 along an H-shaped slide rail 8, maintaining a required distance between the sliding plate 7 and the fixing plate 3 according to the length of the protective film. Then, the clamping assemblies clamp both ends of the protective film. The operation is more convenient. Multiple insertion ports 16 are provided at both ends of the fixed plate 3 and the slide plate 7. Sliding sleeves 14 are fixed to one side of the outer wall of the clamp 18 and the other side of the fixed clamp by bolts. A round rod 15 is slidably connected inside the sliding sleeve 14 and is inserted into its corresponding insertion port 16. A spring 17 is sleeved on the outside of the round rod 15 and the two ends of the spring 17 are fixed to the round rod 15 and the sliding sleeve 14 respectively. When it is necessary to change the distance between the two clamping components on the slide plate 7, the round rod 15 is pulled outward, the spring 17 retracts, and the round rod 15 moves out of the insertion port 16. Then, the clamp 18 is pushed to move along the slide groove 22 to the required position. Then, the round rod 15 is released, the spring 17 rebounds and extends, and the round rod 15 is inserted into the corresponding insertion port 16, thereby fixing the adjusted position. This makes it convenient for workers to position and clamp protective films of different widths.

[0026] In this utility model, it should be noted that the camera detection component includes multiple first fixing blocks 2, which are respectively fixed to the outer walls of both sides of the frame 1 by bolts. A threaded rod 11 is rotatably connected between two first fixing blocks 2 on the same side. A U-shaped frame 4 is threadedly connected to the outer side of the threaded rod 11. Multiple cameras 5 are fixed to the bottom of the U-shaped frame 4 by bolts. Dust detectors 6 (i.e., ISE dust detectors 2) are fixed to the inner walls of both sides of the U-shaped frame 4 by bolts. Rotating the threaded rod 11 moves the U-shaped frame 4 the required distance, activating the dust detectors 6 and the cameras 5. The dust detectors 6 make the defects on the protective film more obvious, and the cameras 5 perform camera detection on the protective film. A limit rod 13 is fixed between two other first fixing blocks 2 on the same side by bolts, and the U-shaped frame 4 is slidably connected to the limit rod 13. The limit rod 13 guides the U-shaped frame 4, enabling it to move stably and preventing tilting during movement. The clamping component includes a dovetail guide rail 20. The dovetail guide rail 20 is bolted to one side of the clamp 18. The top of the clamp 18 is threaded with a second lead screw 21, and the bottom end of the second lead screw 21 is rotatably connected to a clamping block 19. The clamping block 19 is slidably connected to the dovetail guide rail 20. The camera 5 is located between the fixed plate 3 and the slide plate 7. Rotating the second lead screw 21 causes it to move the clamping block 19 downward, thereby stably clamping the protective film between the clamping block 19 and the clamp 18 and between the clamping block 19 and the fixed clamp. Two scales 1 are bolted to the upper surface of the frame 1. 2. The scale 12 is located at the bottom of the slide plate 7. The scale 12 not only makes it convenient for the staff to understand the distance the slide plate 7 moves, but also allows them to directly understand the distance between the fixed plate 3 and the slide plate 7. One end of the threaded rod 11 passes through the first fixed block 2 and is welded with a knob, which makes it convenient for the staff to rotate the threaded rod 11. Two H-shaped slide rails 8 are fixed to the upper surface of the frame 1 by bolts, and the slide plate 7 is slidably connected to the H-shaped slide rails 8. The H-shaped slide rails 8 can guide the slide plate 7 so that it can move stably.

[0027] The working principle of this utility model is as follows: When the protective film needs to be tested, firstly, the first lead screw 9 is rotated to move the slide plate 7 along the H-shaped slide rail 8. The slide plate 7 is positioned at the required distance from the fixed plate 3 according to the size of the protective film. Then, the two ends of the protective film are clamped by the clamping assembly, placing the protective film onto the clamping frame 18 and the fixed clamp. Next, the second lead screw 21 is rotated to move the clamping block 19 downwards, thus stably clamping the protective film between the clamping block 19 and the clamping frame 18, and between the clamping block 19 and the fixed clamp. Finally, the threaded rod 11 is rotated to move the U-shaped frame 4 the required distance. The dust detector 6 is activated, and the camera 5 is started. The dust detector 6 makes the defects on the protective film more obvious, and the camera 5 performs video detection on the protective film. When it is necessary to change the distance between the two clamping components on the slide plate 7, the round rod 15 is pulled outward, the spring 17 retracts, and the round rod 15 moves out of the socket 16. Then, the clamp 18 is pushed to move along the slide groove 22 to the required position. Then, the round rod 15 is released, the spring 17 rebounds and extends, so that the round rod 15 is inserted into the corresponding socket 16, thereby fixing the adjusted position, which makes it convenient for the staff to position and clamp protective films of different widths.

[0028] Furthermore, the terms "installation," "setup," "connection," and "socketing" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral constructions; they can refer to mechanical or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal connections between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

Claims

1. A protective film defect detection device, comprising a frame (1), characterized in that, The top of the frame (1) is provided with a movable camera detection assembly. A fixing plate (3) is fixedly connected to the upper surface of the frame (1). A second fixing block (10) is fixedly connected to the top of the frame (1). A first lead screw (9) is movably connected inside the second fixing block (10), and the first lead screw (9) is rotatably connected to the fixing plate (3). A sliding plate (7) is movably connected to the outside of the first lead screw (9). A fixing clamp is fixedly connected to the middle position of the top of the sliding plate (7) and the fixing plate (3). Slide grooves (22) are opened on both sides of the sliding plate (7) and the fixing plate (3). (22) A clamp (18) is movably connected inside. The upper surfaces of the clamp (18) and the fixed clamp are provided with clamping components. Multiple insertion ports (16) are opened at both ends of the fixed plate (3) and both ends of the slide plate (7). A sliding sleeve (14) is fixedly connected to one side of the outer wall of the clamp (18) and one side of the outer wall of the fixed clamp. A round rod (15) is movably connected inside the sliding sleeve (14), and the round rod (15) is inserted into its corresponding insertion port (16). A spring (17) is sleeved on the outside of the round rod (15), and the two ends of the spring (17) are fixed to the round rod (15) and the sliding sleeve (14) respectively.

2. The protective film defect detection device according to claim 1, characterized in that, The camera detection assembly includes multiple first fixing blocks (2), which are respectively fixed to the outer walls of the frame (1) on both sides by bolts. A threaded rod (11) is movably connected between two first fixing blocks (2) on the same side. A U-shaped frame (4) is movably connected to the outside of the threaded rod (11). Multiple cameras (5) are fixedly connected to the bottom of the U-shaped frame (4). Dust detectors (6) are fixedly connected to the inner walls on both sides of the U-shaped frame (4).

3. The protective film defect detection device according to claim 2, characterized in that, A limiting rod (13) is fixedly connected between the other two first fixing blocks (2) located on the same side, and the U-shaped frame (4) is slidably connected to the limiting rod (13).

4. The protective film defect detection device according to claim 2, characterized in that, The clamping assembly includes a dovetail guide rail (20), which is fixedly connected to one side of a clamp (18). A second lead screw (21) is movably connected to the top of the clamp (18), and a clamping block (19) is movably connected to the bottom of the second lead screw (21). The clamping block (19) is slidably connected to the dovetail guide rail (20).

5. The protective film defect detection device according to claim 2, characterized in that, The camera (5) is located between the fixed plate (3) and the sliding plate (7).

6. The protective film defect detection device according to claim 1, characterized in that, Two rulers (12) are fixedly connected to the upper surface of the frame (1), and the rulers (12) are located at the bottom of the slide plate (7).

7. The protective film defect detection device according to claim 2, characterized in that, One end of the threaded rod (11) passes through the first fixing block (2) and is fixedly connected to a knob.

8. The protective film defect detection device according to claim 1, characterized in that, The upper surface of the frame (1) is fixedly connected to two H-shaped slide rails (8), and the slide plate (7) is slidably connected to the H-shaped slide rails (8).

Citation Information

Patent Citations

  • Large protective film AOI detection equipment

    CN221145918U