A wear resistance strength detection device for a pet hardening film

Abstract

The utility model discloses a kind of PET hardening film wear resistance strength detection devices, including shell, the shell side is equipped with rotating plate, the rotating plate one end is connected with slide, the shell side is equipped with swing arm, the shell is equipped with rack, the rack side is fixedly connected with mounting plate, telescopic rod is fixedly installed on the mounting plate, the output end of the telescopic rod is connected with arc friction plate, the arc friction plate below is equipped with cooperation friction plate, the cooperation friction plate is connected with T type connecting rod and is fixed, the shell inner wall is fixedly installed with plane friction plate.The utility model is driven swing arm to rotate with rotating plate as center to reciprocate, by cooperation friction plate, single side or double side of hardening film can be detected, and by telescopic rod, arc friction plate is moved, the bending degree of PET hardening film can be adjusted, improve the wear resistance of hardening film and the detection effect of many aspects.

Description

Technical Field

[0001] This utility model relates to the field of hardened film testing technology, specifically a device for testing the abrasion resistance of PET hardened films. Background Technology

[0002] PET hardened film is a specially treated polyester film made by coating both sides of a flexible substrate with a special material to increase its surface hardness and abrasion resistance. This hardened film is often used to protect the screens of electronic devices, such as touch screen protectors, optical lenses, folding screens, etc., to prevent them from being scratched or damaged in daily use. Therefore, PET hardened film needs to undergo abrasion resistance testing after production.

[0003] When testing the abrasion resistance of PET hardened films, various testing scenarios are required, such as single-sided or double-sided testing, horizontal or curved testing. However, existing abrasion resistance testing devices cannot fully reflect the abrasion resistance performance of hardened films under different usage scenarios, leading to deviations in test results. Utility Model Content

[0004] The purpose of this invention is to provide a device for testing the abrasion resistance of PET hardened films, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear resistance testing device for PET hardened film, comprising a housing, a rotating plate disposed on one side of the housing, one end of the rotating plate being connected to a sliding rod, a swing arm mounted on the side of the housing, a gear portion disposed at one end of the swing arm, a rack disposed on the housing, the side of the rack being fixedly connected to a mounting plate, a telescopic rod fixedly mounted on the mounting plate, the output end of the telescopic rod being connected to an arc-shaped friction plate, a mating friction plate disposed below the arc-shaped friction plate, the mating friction plate being connected and fixedly connected to a T-shaped connecting rod, a flat friction plate fixedly mounted on the inner wall of the housing, and a flat friction plate fixedly mounted on the inner wall of the housing.

[0006] Preferably, the inner wall of the housing is fixed to the motor by bolts, and the output end of the motor is fixed to the rotating plate.

[0007] Preferably, the side of the housing is rotatably engaged with the rotating shaft, one end of the rotating shaft is fixedly connected to the swing arm, the swing arm is hinged to the housing through the rotating shaft, and a sliding groove is formed on the swing arm, the sliding groove is slidably engaged with the sliding rod.

[0008] Preferably, a limiting groove is provided on the side of the housing, and the housing slides with the mounting plate through the limiting groove. The rack and the mounting plate are located on the inner and outer sides of the housing, respectively, and the rack meshes with the gear.

[0009] Preferably, the arc-shaped friction plate slides with the T-shaped connecting rod through a circular through hole, and an elastic element is sleeved on the outside of the T-shaped connecting rod.

[0010] Preferably, the bottom of the T-shaped connecting rod is provided with a threaded end, and the T-shaped connecting rod is connected and fixed to the mating friction plate through the threaded end.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention uses a motor to rotate a rotating plate, causing a sliding rod to move inside a groove. This causes a swing arm to oscillate back and forth around a rotating shaft. The swing arm, through a gear mechanism, drives a rack to oscillate back and forth, causing an arc-shaped friction plate to oscillate back and forth to test the friction strength of the PET hardened film. The threaded end of the T-shaped connecting rod is connected and fixed to the mating friction plate. The elastic force of the elastic element causes the mating friction plate and the arc-shaped friction plate to clamp the PET hardened film, enabling testing of one or both sides of the hardened film. Furthermore, by using a telescopic rod to push the arc-shaped friction plate, the curvature of the PET hardened film can be adjusted, improving the multi-faceted testing effect of the hardened film's wear resistance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a partial structural schematic diagram of the present invention;

[0015] Figure 3 This is a schematic diagram of the swing arm connection structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the arc-shaped friction plate connection structure of this utility model.

[0017] In the diagram: 1. Housing; 2. Motor; 3. Rotating plate; 4. Slide rod; 5. Swing arm; 6. Rotating shaft; 7. Gear section; 8. Slide groove; 9. Rack; 10. Mounting plate; 11. Telescopic rod; 12. Arc-shaped friction plate; 13. Mating friction plate; 14. T-shaped connecting rod; 15. Elastic element; 16. Mounting bracket; 17. Clamping plate; 18. Flat friction plate. Detailed Implementation

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

[0019] Please see Figure 1-4 This utility model provides a technical solution: a wear resistance testing device for PET hardened film, comprising a housing 1, the inner wall of which is fixedly connected to a motor 2 by bolts, the output end of the motor 2 being fixedly connected to a rotating plate 3, and one end of the rotating plate 3 being connected to a sliding rod 4.

[0020] The side of the housing 1 is rotatably engaged with the rotating shaft 6. One end of the rotating shaft 6 is fixedly connected to the swing arm 5. The swing arm 5 is hinged to the housing 1 via the rotating shaft 6. A sliding groove 8 is formed on the swing arm 5, and the sliding groove 8 is slidably engaged with the sliding rod 4. The rotating plate 3 is rotated by the motor 2, which drives the sliding rod 4 to slide inside the sliding groove 8. The circumferential rotation of the rotating plate 3 causes the swing arm 5 to reciprocate, which is converted into the gear part 7 driving the rack 9 to move back and forth. This further causes the mating friction plate 13 to move back and forth to perform wear resistance testing on the PET hardened film through reciprocating friction. The structure is simple and easy to maintain and repair.

[0021] A limiting groove is provided on the side of the housing 1. The housing 1 slides with the mounting plate 10 through the limiting groove, which ensures the stability of the reciprocating movement of the rack 9 and the mounting plate 10.

[0022] The rack 9 is fixedly connected to the mounting plate 10 on its side. The rack 9 and the mounting plate 10 are located on the inner and outer sides of the housing 1, respectively. The rack 9 is meshed with the gear part 7. The gear part 7 is provided at one end of the swing arm 5. The gear part 7 is a sector gear. By driving the gear part 7 to swing through the swing arm 5, the rack 9 and the mounting plate 10 can be made to swing back and forth, thereby realizing the wear resistance test of the hardened film.

[0023] The mounting plate 10 is fixedly connected to the telescopic rod 11 by bolts. The output end of the telescopic rod 11 is connected to the arc-shaped friction plate 12. The bottom of the arc-shaped friction plate 12 is an arc-shaped plate, and the surface of the arc-shaped friction plate 12 is a friction plate. The arc-shaped friction plate 12 is slidably engaged with the T-shaped connecting rod 14 through a circular through hole. The bottom of the T-shaped connecting rod 14 is provided with a threaded end. A mating friction plate 13 is provided below the arc-shaped friction plate 12. The surface of the mating friction plate 13 is provided with an arc-shaped groove. The arc-shaped friction plate 12 and the mating friction plate 13 are in contact. The arc-shaped friction plate 12 and the mating friction plate 13 are connected and fixed by the T-shaped connecting rod 14. An elastic element 15 is sleeved on the outside of the T-shaped connecting rod 14. The elastic force of the elastic element 15 pushes the T-shaped connecting rod 14 to move upward, and drives the arc-shaped friction plate 12 and the mating friction plate 13 to clamp and fix the PET hardening film. The T-shaped connecting rod 14 is connected and fixed to the mating friction plate 13. The T-shaped connecting rod 14 can be used to install the mating friction plate 13. The combination of the arc-shaped friction plate 12 and the mating friction plate 13 can achieve a wear-resistant effect by clamping the hardened film on one or both sides.

[0024] The inner wall of the housing 1 is fixedly connected to the mounting frame 16. A threaded rod is provided on the outer side of the mounting frame 16, and the bottom of the threaded rod is connected to the clamping plate 17. By rotating the threaded rod, the clamping plate 17 moves downward until the hardened film is clamped and fixed inside the mounting frame 16. A flat friction plate 18 is also fixedly installed on the inner wall of the housing 1. The flat friction plate 18 is located below the mating friction plate 13. The mating friction plate 13 is installed simultaneously with the flat friction plate 18. The bottom of the flat friction plate 18 is flat, which can meet the wear resistance test of the PET hardened film in a flat state.

[0025] Working principle: In use, the two ends of the PET film are placed inside the mounting frame 16. By rotating the threaded rod on the mounting frame 16, the clamping plate 17 clamps and fixes the PET hardening film inside the mounting frame 16. The telescopic rod 11 pushes the mating friction plate 13 up and down until the mating friction plate 13 is in contact with the PET hardening film. The curvature of the hardening film is adjusted by the mating friction plate 13. Then, the motor 2 rotates the rotating plate 3, which drives the slide rod 4 to slide inside the slide groove 8. The circumferential rotation of the rotating plate 3 causes the swing arm 5 to swing back and forth. The gear 7 drives the rack 9 to move back and forth, which allows the surface friction of the hardened film to be tested by the arc-shaped friction plate 12. Then, by passing the threaded end of the bottom of the T-shaped connecting rod 14 through the arc-shaped friction plate 12 and connecting and fixing it with the mating friction plate 13, the elastic force of the elastic element 15 ensures that the arc-shaped friction plate 12 and the mating friction plate 13 clamp and fix the PET hardened film, realizing the double-sided wear resistance test of the hardened film. The flat friction plate 18 at the bottom can also meet the wear resistance test of the hardened film in a flat state, effectively expanding the wear resistance test of the PET hardened film from multiple aspects.

[0026] 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.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the abrasion resistance of PET hardened film, comprising a housing (1), characterized in that: A rotating plate (3) is provided on one side of the housing (1). One end of the rotating plate (3) is connected to a sliding rod (4). A swing arm (5) is installed on the side of the housing (1). A gear part (7) is provided at one end of the swing arm (5). A rack (9) is provided on the housing (1). The side of the rack (9) is fixedly connected to a mounting plate (10). A telescopic rod (11) is fixedly installed on the mounting plate (10). The output end of the telescopic rod (11) is connected to an arc-shaped friction plate (12). A mating friction plate (13) is provided below the arc-shaped friction plate (12). The mating friction plate (13) is connected and fixedly connected to a T-shaped connecting rod (14). The inner wall of the housing (1) is fixedly connected to a mounting frame (16). A flat friction plate (18) is fixedly installed on the inner wall of the housing (1).

2. The abrasion resistance testing device for PET hardened film according to claim 1, characterized in that: The inner wall of the housing (1) is connected and fixed to the motor (2) by bolts, and the output end of the motor (2) is connected and fixed to the rotating plate (3).

3. The abrasion resistance testing device for PET hardened film according to claim 2, characterized in that: The side of the housing (1) is rotatably connected to the rotating shaft (6). One end of the rotating shaft (6) is fixedly connected to the swing arm (5). The swing arm (5) is hinged to the housing (1) through the rotating shaft (6). A sliding groove (8) is provided on the swing arm (5). The sliding groove (8) is slidably connected to the sliding rod (4).

4. The abrasion resistance testing device for PET hardened film according to claim 3, characterized in that: The housing (1) has a limiting groove on its side. The housing (1) slides with the mounting plate (10) through the limiting groove. The rack (9) and the mounting plate (10) are located on the inner and outer sides of the housing (1) respectively. The rack (9) meshes with the gear part (7).

5. The abrasion resistance testing device for PET hardened film according to claim 1, characterized in that: The arc-shaped friction plate (12) is slidably engaged with the T-shaped connecting rod (14) through a circular through hole, and an elastic element (15) is sleeved on the outside of the T-shaped connecting rod (14).

6. The abrasion resistance testing device for PET hardened film according to claim 5, characterized in that: The bottom of the T-shaped connecting rod (14) is provided with a threaded end, and the T-shaped connecting rod (14) is connected and fixed to the mating friction plate (13) through the threaded end.

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