Wear-resistant protective film testing device

Abstract

The utility model belongs to the technical field of wear-resistant protective film testing, and particularly relates to a wear-resistant protective film testing device which comprises a base, two groups of guide plates are symmetrically mounted on the base, a guide frame is welded on a connecting block, a guide rod is fixedly mounted between the inner walls of the guide frame, and a polishing plate is slidably sleeved on the periphery of the guide rod. Springs are installed between the polishing plates and top plates of the guide frames, a first screw penetrates through the top plate of one guide plate, the guide frames are driven by the first screw to vertically move downwards, the guide frames drive the polishing plates on the guide frames to vertically move downwards, and the polishing plates vertically move downwards till making contact with the protective film. And then the first screw rod drives the guide frame to continue to vertically move downwards, the spring between the guide frame and the grinding plate is compressed, meanwhile, the spring presses the grinding plate, the grinding plate makes contact with the protective film, in the process, the grinding plate makes contact with the protective film all the time, the protective film cannot be excessively pressed, and the adjustability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wear-resistant protective film testing, in particular to a wear-resistant protective film testing device. Background Art

[0002] Wear-resistant protective film is a special film, which is mainly used to protect the surface of various objects, equipment or surfaces from damage or pollution, such as mobile phone screens, car surfaces, furniture surfaces, etc. In the production process of wear-resistant protective film, it is necessary to use a testing device to test the wear resistance of the protective film.

[0003] The principle of the wear-resistant protective film testing device is to evaluate the performance of the wear-resistant protective film through wear testing. During the test, the protective film sample to be tested is fixed on the sample clamping device, and then the grinding head is brought into contact with the sample surface to simulate the wear conditions in actual use scenarios. By monitoring and recording the wear conditions during the test, the wear resistance of the protective film under different conditions can be evaluated, providing reference and improvement suggestions for manufacturers and users to ensure the reliability and durability of the protective film.

[0004] The existing testing device cannot adjust the distance between the grinding plate and the protective film during the wear resistance test of the protective film. The grinding plate easily presses the protective film excessively, resulting in poor adjustability of the wear resistance test. Therefore, a wear-resistant protective film testing device is proposed to address the above problem. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a wear-resistant protective film testing device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the utility model describes a wear-resistant protective film testing device, comprising a base, two groups of guide plates are symmetrically installed on the base, connecting grooves are provided on the guide plates, connecting blocks are installed in the connecting grooves, guide frames are welded on the connecting blocks, the guide frames are U-shaped structures, guide rods are fixedly installed between the inner walls of the guide frames, a grinding plate is provided on the outer sliding sleeve of the guide rods, a spring is installed between the grinding plate and the top plate of the guide frame, the spring sleeve is arranged on the outer periphery of the guide rods, a first screw is penetrated by the top plate of one of the guide plates, a first knob is welded on the top side of the first screw, and the first The bottom side of the screw is rotatably connected to the top plate of the guide frame, and the first screw slides in cooperation with the guide plate through a thread, and the other guide plate top plate passes through a limit rod, and the limit rod slides in cooperation with the guide plate top plate, and the guide frame is driven to move vertically downward by the first screw, and the guide frame drives the grinding plate thereon to move vertically downward, and the grinding plate moves vertically downward until it contacts the protective film, and then the first screw drives the guide frame to continue to move vertically downward, and the spring between the guide frame and the grinding plate is compressed, and at the same time the spring presses the grinding plate, and the grinding plate contacts the protective film, during this process, the grinding plate is always in contact with the protective film, and will not press the protective film excessively, which is beneficial to improving the adjustability of the device.

[0007] Preferably, a movable groove is provided on the base, a screw is rotatably installed between the inner walls of the movable groove, a stepping motor is installed on the side wall of the base through a machine base, the output shaft of the stepping motor is connected to one end of the screw, a movable block is assembled in the movable groove, the movable block is sleeved on the outer periphery of the screw and slides with the screw through a thread, a placement plate is installed on the movable block, two groups of second screws are symmetrically rotatably installed on the placement plate, a second knob is welded on the second screw, a clamping plate is sleeved on the second screw, and two A set of fixing rods are provided, the fixing rods pass through a splint, the splint slides in cooperation with the fixing rods, a protective film is placed on the placement plate, and the splint on it is driven to move vertically downward by a second screw rod, and the splint presses the protective film, thereby realizing that the two sets of splints press and fix the protective film, and the moving block on it is driven by a screw rod to move reciprocatingly horizontally, the moving block drives the placement plate to move reciprocatingly horizontally, the placement plate drives the protective film on it to move reciprocatingly horizontally, and the protective film moves reciprocatingly horizontally relative to the polishing plate, thereby realizing the polishing of the protective film, which is beneficial to improving the efficiency of the wear resistance test.

[0008] The utility model is beneficial in that:

[0009] 1. The utility model drives the guide frame to move vertically downward by the first screw, and the guide frame drives the grinding plate thereon to move vertically downward, and the grinding plate moves vertically downward until it contacts the protective film, and then the first screw drives the guide frame to continue to move vertically downward, and the spring between the guide frame and the grinding plate is compressed, and at the same time the spring presses the grinding plate, and the grinding plate contacts the protective film. During this process, the grinding plate is always in contact with the protective film and will not press the protective film excessively, which is beneficial to improving the adjustability of the device.

[0010] 2. The utility model drives the clamping plate thereon to move vertically downward through the second screw, and the clamping plate presses the protective film, thereby realizing that the two groups of clamping plates press and fix the protective film, and drives the moving block thereon to move reciprocatingly horizontally through the screw rod, and the moving block drives the placement plate to move reciprocatingly horizontally, and the placement plate drives the protective film thereon to move reciprocatingly horizontally, and the protective film moves reciprocatingly horizontally relative to the polishing plate, thereby realizing the polishing of the protective film, which is beneficial to improving the efficiency of the wear resistance test. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0012] Figure 1 It is a schematic diagram of a three-dimensional structure from a first-person perspective;

[0013] Figure 2 It is a schematic diagram of the three-dimensional structure of the guide plate;

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the grinding plate;

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure at the base.

[0016] In the figure: 1. base; 2. guide plate; 3. connecting groove; 4. connecting block; 5. guide frame; 6. guide rod; 7. grinding plate; 8. spring; 9. first screw; 10. first knob; 11. limit rod; 12. moving groove; 13. lead screw; 14. stepping motor; 15. moving block; 16. placement plate; 17. second screw; 18. second knob; 19. clamping plate; 20. fixing rod; 21. protective film. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 As shown, a wear-resistant protective film testing device includes a base 1, two sets of guide plates 2 are symmetrically installed on the base 1, a connecting groove 3 is opened on the guide plate 2, a connecting block 4 is assembled in the connecting groove 3, a guide frame 5 is welded on the connecting block 4, the guide frame 5 is a U-shaped structure, a guide rod 6 is fixedly installed between the inner walls of the guide frame 5, a grinding plate 7 is slidingly sleeved on the outer periphery of the guide rod 6, a spring 8 is installed between the grinding plate 7 and the top plate of the guide frame 5, and the spring 8 is sleeved on the outer periphery of the guide rod 6, one of the top plates of the guide plates 2 is penetrated by a first screw 9, and the first A first knob 10 is welded to the top side of the screw rod 9, and the bottom side of the first screw rod 9 is rotatably connected to the top plate of the guide frame 5. The first screw rod 9 slides with the guide plate 2 through a thread, and the top plate of the other guide plate 2 penetrates a limit rod 11, and the limit rod 11 slides with the top plate of the guide plate 2. A moving groove 12 is opened on the base 1, and a screw rod 13 is rotatably installed between the inner walls of the moving groove 12. A stepper motor 14 is installed on the side wall of the base 1 through a machine base, and the output shaft of the stepper motor 14 is connected to one end of the screw rod 13. A moving block 15 is assembled in the moving groove 12 The moving block 15 is sleeved on the outer periphery of the screw rod 13 and slides with the screw rod 13 through a thread. A placement plate 16 is installed on the moving block 15. Two sets of second screw rods 17 are symmetrically rotated and installed on the placement plate 16. A second knob 18 is welded on the second screw 17. A clamping plate 19 is sleeved on the second screw 17. Two sets of fixed rods 20 are symmetrically welded on the placement plate 16. The fixed rods 20 pass through the clamping plate 19. The clamping plate 19 slides with the fixed rods 20. A protective film 21 is placed on the placement plate 16. When working, the existing testing device is in the protective film During the wear test of the protective film 21, the distance between the grinding plate 7 and the protective film 21 cannot be adjusted, and the grinding plate 7 is easy to press the protective film 21 excessively, resulting in poor adjustability of the wear test. By placing the protective film 21 on the placement plate 16 and rotating the two sets of second knobs 18, the second knobs 18 drive the second screw 17 to rotate, and the second screw 17 drives the clamping plate 19 thereon to move vertically downward, and the clamping plate 19 presses the protective film 21, so that the two sets of clamping plates 19 press and fix the protective film 21;

[0019] Then, the first knob 10 is rotated to drive the first screw 9 to rotate. The first screw 9 moves vertically downward while rotating. The first screw 9 drives the guide frame 5 to move vertically downward. The guide frame 5 drives the grinding plate 7 thereon to move vertically downward. The grinding plate 7 moves vertically downward until it contacts the protective film 21. Then, the first screw 9 drives the guide frame 5 to continue to move vertically downward. After the grinding plate 7 contacts the protective film 21, the position does not move. The guide frame 5 moves downward relative to the grinding plate 7. The spring 8 between the guide frame 5 and the grinding plate 7 is compressed. Then, the first knob 10 is stopped from being rotated. At this time, the spring 8 is compressed. At the same time, the spring 8 presses the grinding plate 7, and the grinding plate 7 contacts the protective film 21.

[0020] The stepper motor 14 operates to drive the lead screw 13 to rotate reciprocatingly, the lead screw 13 drives the moving block 15 thereon to move reciprocatingly horizontally, the moving block 15 drives the placement plate 16 to move reciprocatingly horizontally, the placement plate 16 drives the protective film 21 thereon to move reciprocatingly horizontally, the protective film 21 moves reciprocatingly horizontally relative to the polishing plate 7, thereby polishing the protective film 21. During this process, the polishing plate 7 is always in contact with the protective film 21, and will not press the protective film 21 excessively, which is beneficial to improving the adjustability of the device.

[0021] Working principle: During the wear resistance test of the protective film 21, the existing testing device cannot adjust the distance between the grinding plate 7 and the protective film 21. The grinding plate 7 is easy to press the protective film 21 excessively, resulting in poor adjustability of the wear resistance test. By placing the protective film 21 on the placement plate 16 and rotating the two sets of second knobs 18, the second knobs 18 drive the second screw 17 to rotate, and the second screw 17 drives the clamping plate 19 thereon to move vertically downward, and the clamping plate 19 presses the protective film 21, thereby achieving the two sets of clamping plates 19 pressing and fixing the protective film 21; then, the first knob 10 is rotated to drive the first screw 9 to rotate, and the first screw 9 moves vertically downward while rotating, and the first screw 9 drives the guide frame 5 to move vertically downward, and the guide frame 5 drives the grinding plate 7 thereon to move vertically downward, and the grinding plate 7 moves vertically downward until it contacts the protective film 21. After the polishing plate 7 is touched, the first screw rod 9 drives the guide frame 5 to continue to move vertically downward. After the polishing plate 7 contacts the protective film 21, the position does not move. The guide frame 5 moves downward relative to the polishing plate 7. The spring 8 between the guide frame 5 and the polishing plate 7 is compressed. Then the rotation of the first knob 10 is stopped. At this time, the spring 8 is compressed. At the same time, the spring 8 presses the polishing plate 7, and the polishing plate 7 contacts the protective film 21; through the operation of the stepper motor 14, the lead screw 13 is driven to rotate reciprocatingly, and the lead screw 13 drives the moving block 15 thereon to move reciprocatingly horizontally. The moving block 15 drives the placement plate 16 to move reciprocatingly horizontally. The placement plate 16 drives the protective film 21 thereon to move reciprocatingly horizontally. The protective film 21 moves reciprocatingly horizontally relative to the polishing plate 7, thereby realizing the polishing of the protective film 21. During this process, the polishing plate 7 is always in contact with the protective film 21, and will not press the protective film 21 excessively, which is beneficial to improving the adjustability of the device.

[0022] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A wear-resistant protective film testing device, characterized in that: The invention comprises a base (1), two groups of guide plates (2) are symmetrically mounted on the base (1), a connecting groove (3) is formed on the guide plate (2), a connecting block (4) is mounted in the connecting groove (3), a guide frame (5) is welded on the connecting block (4), the guide frame (5) is a U-shaped structure, a guide rod (6) is fixedly mounted between the inner walls of the guide frame (5), a grinding plate (7) is provided on the outer sliding sleeve of the guide rod (6), and a grinding plate (7) is arranged between the grinding plate (7) and the top plate of the guide frame (5). A spring (8) is provided, and the spring (8) is sleeved on the outer periphery of the guide rod (6). A first screw rod (9) passes through the top plate of one of the guide plates (2), and a first knob (10) is welded to the top side of the first screw rod (9). The bottom side of the first screw rod (9) is rotatably connected to the top plate of the guide frame (5). The first screw rod (9) slides in cooperation with the guide plate (2) through a thread. A limiting rod (11) passes through the top plate of the other guide plate (2), and the limiting rod (11) slides in cooperation with the top plate of the guide plate (2).

2. A wear-resistant protective film testing device according to claim 1, characterized in that: The base (1) is provided with a movable groove (12), and a screw rod (13) is rotatably mounted between the inner walls of the movable groove (12).

3. The wear-resistant protective film testing device according to claim 1, characterized in that: A stepper motor (14) is mounted on the side wall of the base (1) via a machine base, and an output shaft of the stepper motor (14) is connected to one end of a screw rod (13).

4. The wear-resistant protective film testing device according to claim 2, characterized in that: A moving block (15) is installed in the moving groove (12); the moving block (15) is sleeved on the outer periphery of the screw rod (13) and slides in cooperation with the screw rod (13) via a thread.

5. A wear-resistant protective film testing device according to claim 4, characterized in that: A placement plate (16) is mounted on the moving block (15), two sets of second screw rods (17) are symmetrically mounted on the placement plate (16), a second knob (18) is welded on the second screw rod (17), and a clamping plate (19) is sleeved on the second screw rod (17).

6. A wear-resistant protective film testing device according to claim 5, characterized in that: Two groups of fixing rods (20) are symmetrically welded on the placement plate (16), the fixing rods (20) penetrate the clamping plate (19), the clamping plate (19) and the fixing rods (20) slide in cooperation, and a protective film (21) is placed on the placement plate (16).

Images