Device for testing scratch resistance of material
By designing a device for testing the scratch resistance of the car invisible car clothing, the problem of difficulty in effectively testing the scratch resistance of the car invisible car clothing in the prior art is solved, and a low-cost and efficient testing method is realized to help consumers expect product effects and avoid economic losses.
Patent Information
- Application Number
- CN202510339784.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-21
- Publication Date
- 2025-05-13
AI Technical Summary
The prior art is difficult to effectively test the scratch resistance of car invisible car clothing, which leads to consumers not being able to expect product effects. After use, it may be found that the protective performance is insufficient, causing economic losses.
Design a device to test the scratch resistance of materials, including frames, mountings, scratches and drive mechanisms, scrape thin products through scratches, and use elastic parts and drive mechanisms to simulate scratching scenes to intuitively view the scratching situation of the material.
It realizes scratch resistance performance testing with simple structure, low production cost and low testing cost, allowing users to intuitively understand the scratch resistance performance of materials, avoiding the problem of insufficient performance after blind purchase and use.
Smart Images
Figure CN119985185A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of material testing, and in particular to a device for testing the scratch resistance of a material. Background Art
[0002] Some existing film products, such as car film (invisible car film) in the automotive field, are mainly used to prevent scratches when attached to the surface of the car. When the car touches an obstacle, the car film can prevent or reduce damage to the car's exterior paint. However, when people buy products such as invisible car film, users cannot understand the scratch resistance of the product and can only buy blindly. This blindness often causes consumers to be unable to predict the effect of the product, which greatly reduces the effect of the invisible car film. If consumers do not have enough understanding of the performance, they may find that the protective performance is insufficient after use, causing economic losses.
[0003] At present, in the sales promotion of invisible car covers, salesmen in car service stores introduce the product performance to customers verbally, and consumers cannot understand the real performance and protective effect of invisible car covers through their own perception. Salesmen in car service stores have no other way except to convince consumers to understand the difference between products of different grades through many terms and concepts. At most, they can only introduce the difference and performance of different products through thickness and verbal materials. In addition, many professional testing methods and equipment are expensive. Consumers and sales stores give up choosing professional testing because of the high cost and inspection costs. Summary of the invention
[0004] To solve at least one aspect of the above problems, the present invention provides a device for testing the scratch resistance of a material, which is suitable for testing the scratch resistance of a thin product. The device for testing the scratch resistance of a material comprises a frame, on which a mounting member, a scraping member and a driving mechanism are provided. The scraping member is provided on one side of the mounting member, and the thin product is mounted on a side of the mounting member close to the scraping member. An elastic member is provided between the frame and the scraping member. During the test, the elastic member is used to drive the scraping member to always press against the thin product, and the driving mechanism is used to drive the mounting member and the scraping member to undergo relative displacement so that the thin product and the scraping member are scratched. The device for testing the scratch resistance of a material of the present invention has a simple structure, low production cost and low testing cost. The thin product is scratched by the scraping member, so that the user can intuitively view the scratching of the material and understand the scratch resistance of the material.
[0005] Optionally, a curved surface is provided on a side of the mounting member close to the scraping member, and the thin product is mounted on the curved surface and fits the curved surface.
[0006] Optionally, the mounting member is arc-shaped, and comprises an upper arc-shaped plate, a lower arc-shaped plate, and a connecting plate connected between the upper arc-shaped plate and the lower arc-shaped plate, and a cavity is formed between the upper arc-shaped plate, the lower arc-shaped plate, and the connecting plate.
[0007] Optionally, a mounting frame for mounting the scraper is provided on the frame, the elastic member is connected between the mounting frame and the frame, the scraper is provided with a plurality of different scraping surfaces, and the scraper has a plurality of mounting positions mounted on the mounting frame; when installing the scraper, one of the scraping surfaces is selected to abut against the thin product, and the scraper is installed on the mounting frame according to the corresponding mounting position.
[0008] Optionally, the scraper is in the shape of a polygonal column, the scraping surface is formed on multiple side surfaces of the scraper, a screw for fixing the scraper is threadedly connected to the mounting frame, an abutment block for abutting the scraper is provided at one end of the screw close to the scraper, and a rotating handle is provided at one end of the screw away from the abutment block.
[0009] Optionally, a guide rod is provided on the frame body, and a slider which slidably cooperates with the guide rod is provided on the mounting frame.
[0010] Optionally, the frame is provided with an adjustment mechanism for adjusting the pressing force between the scraper and the thin product, the adjustment mechanism includes a hand screw threadedly connected to the frame, a first plate is provided at one end of the hand screw, a second plate is provided on the mounting frame, the elastic member is a compression spring, and both ends of the elastic member are respectively connected to the first plate and the second plate.
[0011] Optionally, the driving mechanism comprises a motor, a screw rod and a nut block, the motor is used to drive the screw rod to rotate, the nut block is threadedly connected to the screw rod, and the mounting piece is detachably mounted on the nut block.
[0012] Optionally, a slot for clamping the mounting piece along a first direction is provided on the nut block, and when the motor drives the screw rod to rotate, the screw rod drives the mounting piece to slide along a second direction, and the first direction is perpendicular to the second direction.
[0013] Optionally, the thin product is a flexible film product.
[0014] Compared with the prior art, the device for testing the scratch resistance of materials in the present invention has a simple structure, low production cost and low testing cost; the thin product is scratched by the scraper, so that the user can intuitively check the scratching condition of the material and understand the scratch resistance of the material; the mounting member includes an upper arc plate, a lower arc plate and a connecting plate connected between the upper arc plate and the lower arc plate, and a plurality of connecting plates are provided, and the structural strength is increased by the connecting plates, so that the upper arc plate and the lower arc plate are not easily deformed; a cavity is formed between the upper arc plate, the lower arc plate and the connecting plate, and the cavity can reduce manufacturing materials and reduce production costs. production cost; the mounting parts are plastic parts or metal parts, which can more realistically simulate the scratching effect of thin film products such as car cover films on plastic parts or metal parts on the car; when installing the scraper, select one of the scratching surfaces to abut the thin product, and install the scraper on the mounting frame according to the corresponding mounting position. By changing the mounting position of the scraper, various scratching scenarios can be simulated, and the test is more comprehensive; the height of the mounting frame and the scraper is adjusted by rotating the hand screw, thereby adjusting the tightening force between the scraper and the thin product, thereby simulating the scratch resistance of the material under different scratching forces, and the test is more comprehensive. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 A three-dimensional diagram of a device for testing the scratch resistance of a material according to the present invention;
[0016] Figure 2 It is a schematic diagram of the structure of the device for testing the scratch resistance of materials of the present invention during testing;
[0017] Figure 3 It is a schematic diagram of the structure of the spring part of the device for testing the scratch resistance of materials of the present invention;
[0018] Figure 4 for Figure 3 Enlarged view of part A in the middle;
[0019] Figure 5 It is a schematic structural diagram of the driving mechanism of the device for testing the scratch resistance of materials according to the present invention;
[0020] Figure 6 It is a schematic diagram of the structure of the installation part of the device for testing the scratch resistance of materials according to the present invention;
[0021] The corresponding component names of the various figure marks in the figure are: 1 is a frame, 11 is a first frame, 12 is a second frame, 101 is a guide rod, 2 is a mounting member, 201 is an arc surface, 21 is an upper arc plate, 22 is a lower arc plate, 23 is a connecting plate, 24 is a cavity, 3 is a scraper, 31 is a scraper surface, 4 is a hand screw, 41 is a first plate, 5 is an elastic member, 6 is a mounting frame, 61 is a screw, 62 is an abutment block, 63 is a rotating handle, 64 is a slider, 65 is a second plate, 71 is a motor, 72 is a screw, 73 is a nut block, and 731 is a slot. DETAILED DESCRIPTION
[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0023] In the description of the present invention, it should be understood that the terms "upper", "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is normally used.
[0024] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0025] See also Figure 1-Figure 6 The embodiment of the present invention provides a device for testing the scratch resistance of a material, which is suitable for testing the scratch resistance of a thin product. The device for testing the scratch resistance of a material comprises a frame 1, on which a mounting member 2, a scraper 3 and a driving mechanism are arranged. The scraper 3 is arranged on one side of the mounting member 2, and the thin product is mounted on the side of the mounting member 2 close to the scraper 3. An elastic member 5 is arranged between the frame 1 and the scraper 3. During the test, the elastic member 5 is used to drive the scraper 3 to always press against the thin product, and the driving mechanism is used to drive the mounting member 2 and the scraper 3 to have relative displacement, so that the thin product and the scraper 3 are scratched. The device for testing the scratch resistance of a material of the present invention has a simple structure, low production cost and low testing cost. The thin product is scratched by the scraper, so that the user can intuitively view the scratching of the material, thereby understanding the scratch resistance of the material.
[0026] See also Figure 1 , Figure 2 and Figure 6, a curved surface 201 is provided on one side of the mounting member 2 close to the scraper member 3, a thin product is mounted on the curved surface 201 and fits with the curved surface 201, and the thin product is fixed on the curved surface 201 by glue, adhesive, etc.; the curved surface reduces the contact area between the scraper member 3 and the thin product, so that the scraping part is more concentrated in a certain area, making the scraping effect more obvious; in addition, the part where the scratch occurs in the car is often the curved part on the car, and the simulation of the scraping effect is more realistic; the mounting member 2 is curved, and the mounting member 2 includes an upper curved surface. The upper arc plate 21, the lower arc plate 22 and the connecting plate 23 connected between the upper arc plate 21 and the lower arc plate 22, there are several connecting plates 23, the structural strength is increased by the connecting plates, so that the upper arc plate 21 and the lower arc plate 22 are not easily deformed; a cavity 24 is formed between the upper arc plate 21, the lower arc plate 22 and the connecting plate 23, the cavity 24 can reduce manufacturing materials and reduce production costs; the mounting part 2 is a plastic part or a metal part, which can more realistically simulate the scratching effect of film products such as car cover films on plastic parts or metal parts on the car.
[0027] See also Figure 2-Figure 4 , a mounting frame 6 for mounting the scraper 3 is provided on the frame 1, the elastic member 5 is connected between the mounting frame 6 and the frame 1, the scraper 3 is provided with a plurality of different scraping surfaces 31, and the roughness of different scraping surfaces 31 is different, or the scraping surface 31 is provided with sharp protrusions to simulate various scraping scenes; the scraper 3 has a plurality of mounting positions mounted on the mounting frame 6; when installing the scraper 3, one of the scraping surfaces 31 is selected to abut against the thin product, and the scraper 3 is installed on the mounting frame 6 according to the corresponding mounting position, and the simulation of various scraping scenes can be realized by changing the mounting position of the scraper 3, and the test More comprehensive; the scraper 3 is in the shape of a polygonal column, and the scraping surfaces 31 are formed on multiple sides of the scraper 3. In this embodiment, the scraper 3 is a regular quadrangular prism, and four scraping surfaces 31 are provided, namely the front side, rear side, upper side and lower side of the regular quadrangular prism; a screw 61 for fixing the scraper 3 is threadedly connected to the mounting frame 6, and an abutment block 62 for abutting the scraper 3 is provided at one end of the screw 61 close to the scraper 3, and the abutment block 62 is disc-shaped, which increases the abutment area, so that the scraper 3 is not easily displaced after being fixed; a rotating handle 63 is provided at one end of the screw 61 away from the abutment block 62, which is more convenient to operate.
[0028] See also Figure 2-Figure 4, a guide rod 101 is provided on the frame 1, and a slider 64 that slides with the guide rod 101 is provided on the mounting frame 6. The guide rod 101 extends in the vertical direction, so that the mounting frame 6 can slide up and down more smoothly and will not be displaced in the horizontal direction; an adjusting mechanism for adjusting the contact force between the scraper 3 and the thin product is provided on the frame 1, and the adjusting mechanism includes a hand screw 4 threadedly connected to the frame 1, and the axial direction of the hand screw 4 is perpendicular to the horizontal plane. A first plate 41 is provided at one end of the hand screw 4, and a second plate 65 is provided on the mounting frame 6. The elastic member 5 is a compression spring, and the two ends of the elastic member 5 are respectively connected to the first plate 41 and the second plate 65 by welding. The height of the mounting frame 6 and the scraper 3 is adjusted by rotating the hand screw 4, thereby adjusting the contact force between the scraper 3 and the thin product, thereby simulating the scratch resistance of the material under different scraping forces, and the test is more comprehensive.
[0029] See also Figure 2 , Figure 3 and Figure 5 The drive mechanism includes a motor 71, a screw rod 72 and a nut block 73. The motor 71 is used to drive the screw rod 72 to rotate. The nut block 73 is threadedly connected to the screw rod 72, and the mounting member 2 is detachably mounted on the nut block 73. Before testing, the scraper 3 is first mounted and fixed with the required scraping surface facing downward, and the mounting frame 6 is adjusted to the required height by rotating the hand screw 4. The mounting member 2 is installed on the nut block 73, and then the screw rod 72 is driven to rotate by the motor 71. The rotation of the screw rod 72 drives the nut block 73 and the mounting member 2 to slide horizontally. At this time, since the upper end of the mounting member 2 is arc-shaped, the mounting member 2 can push the scraper 3 upward while sliding. In this process, the scraper 3 and The thin product is scratched to achieve a scratch resistance test of the thin product; when the test is completed, the motor 71 drives the mounting member 2 to slide until it is separated from the scraper 3, at which time the motor 71 stops, and the mounting member 2 can be taken out by hand to observe the scratch degree of the thin product, thereby knowing the scratch resistance of the thin product; the motor is a remote-controlled motor, so that the operation of the motor can be controlled by the remote control in the hand of the tester, and the test is more convenient; a card slot 731 for clamping the mounting member 2 along a first direction is provided on the nut block 73, and when the motor 71 drives the screw rod 72 to rotate, the screw rod 72 drives the mounting member 2 to slide along a second direction, and the first direction is perpendicular to the second direction; refer to Figure 2 The first direction is the Y-axis direction, and the second direction is the X-axis direction. The mounting member 2 is easy to disassemble and assemble. The mounting member 2 realizes the disassembly and assembly function through the card slot 731, and does not need to be fixed by additional parts. The structure is simple and the production cost is low.
[0030] See also Figure 1 and Figure 2The thin product is a flexible film product. In the automotive field, the thin product is a flexible film product such as a car cover film, a glass film or a color-changing film, which is easy to detect and has low cost. The frame 1 includes a first frame 11 and a second frame 12 connected to each other. The second frame 12 is made of a transparent material to facilitate observation of the internal test conditions. The second frame 12 is configured to be detachable. After disassembling the second frame 12, the functions of disassembling and assembling the mounting member 2 and the scraping member 3 can be realized; or a door panel that can be opened and closed is provided on the second frame 12, and the functions of disassembling and assembling the mounting member 2 and the scraping member 3 are realized by opening the door panel.
[0031] The device for testing the scratch resistance of a material in the present invention has a simple structure, low production cost and low testing cost. The thin product is scratched by a scraper, so that the user can intuitively view the scratching condition of the material, thereby understanding the scratch resistance of the material. The mounting member includes an upper arc plate, a lower arc plate and a connecting plate connected between the upper arc plate and the lower arc plate. A plurality of connecting plates are provided, and the structural strength is increased by the connecting plates, so that the upper arc plate and the lower arc plate are not easily deformed. A cavity is formed between the upper arc plate, the lower arc plate and the connecting plate, and the cavity can reduce manufacturing materials and reduce production costs. The mounting parts are plastic parts or metal parts, which can more realistically simulate the scratching effect of thin film products such as car cover films on plastic parts or metal parts on the car; when installing the scratching parts, select one of the scratching surfaces to abut the thin product, and install the scratching parts on the mounting frame according to the corresponding mounting position. By changing the mounting position of the scratching parts, various scratching scenarios can be simulated, and the test is more comprehensive; by rotating the hand screw to adjust the height of the mounting frame and the scratching parts, the contact force between the scraping parts and the thin products can be adjusted, thereby simulating the scratch resistance of the material under different scratching forces, and the test is more comprehensive.
[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A device for testing the scratch resistance of a material, suitable for testing the scratch resistance of a thin product, characterized in that: The device for testing the scratch resistance of a material comprises a frame (1), on which a mounting member (2), a scraping member (3) and a driving mechanism are arranged, wherein the scraping member (3) is arranged on one side of the mounting member (2), and the thin product is mounted on a side of the mounting member (2) close to the scraping member (3), and an elastic member (5) is arranged between the frame (1) and the scraping member (3); during testing, the elastic member (5) is used to drive the scraping member (3) to always abut against the thin product, and the driving mechanism is used to drive the mounting member (2) and the scraping member (3) to move relative to each other, so that the thin product and the scraping member (3) scrape each other.
2. The device for testing the scratch resistance of a material according to claim 1, characterized in that: A curved surface (201) is provided on one side of the mounting member (2) close to the scraping member (3), and the thin product is mounted on the curved surface (201) and fits in contact with the curved surface (201).
3. The device for testing the scratch resistance of a material according to claim 1, characterized in that: The mounting member (2) is arc-shaped, and comprises an upper arc-shaped plate (21), a lower arc-shaped plate (22), and a connecting plate (23) connected between the upper arc-shaped plate (21) and the lower arc-shaped plate (22), and a cavity (24) is formed between the upper arc-shaped plate (21), the lower arc-shaped plate (22), and the connecting plate (23).
4. The device for testing the scratch resistance of a material according to claim 1, characterized in that: The frame (1) is provided with a mounting frame (6) for mounting the scraper (3); the elastic member (5) is connected between the mounting frame (6) and the frame (1); the scraper (3) is provided with a plurality of different scraping surfaces (31); the scraper (3) has a plurality of mounting positions mounted on the mounting frame (6); when the scraper (3) is mounted, one of the scraping surfaces (31) is selected to abut against the thin product, and the scraper (3) is mounted on the mounting frame (6) at the corresponding mounting position.
5. The device for testing the scratch resistance of a material according to claim 4, characterized in that: The scraper (3) is in the shape of a polygonal column, the scraper surface (31) is formed on multiple side surfaces of the scraper (3), a screw rod (61) for fixing the scraper (3) is threadedly connected to the mounting frame (6), an abutment block (62) for abutting the scraper (3) is arranged at one end of the screw rod (61) close to the scraper (3), and a rotating handle (63) is arranged at one end of the screw rod (61) away from the abutment block (62).
6. The device for testing the scratch resistance of a material according to claim 4, characterized in that: The frame body (1) is provided with a guide rod (101), and the mounting frame (6) is provided with a sliding block (64) that slidably cooperates with the guide rod (101).
7. The device for testing the scratch resistance of a material according to claim 4, characterized in that: The frame (1) is provided with an adjustment mechanism for adjusting the contact force between the scraper (3) and the thin product, the adjustment mechanism comprising a hand screw (4) threadedly connected to the frame (1), one end of the hand screw (4) is provided with a first plate (41), the mounting frame (6) is provided with a second plate (65), the elastic member (5) is a compression spring, and the two ends of the elastic member (5) are respectively connected to the first plate (41) and the second plate (65).
8. The device for testing the scratch resistance of a material according to claim 1, characterized in that: The driving mechanism comprises a motor (71), a screw rod (72) and a nut block (73); the motor (71) is used to drive the screw rod (72) to rotate; the nut block (73) is threadedly connected to the screw rod (72); and the mounting member (2) is detachably mounted on the nut block (73).
9. The device for testing the scratch resistance of a material according to claim 8, characterized in that: The nut block (73) is provided with a slot (731) for clamping the mounting member (2) along a first direction. When the motor (71) drives the screw rod (72) to rotate, the screw rod (72) drives the mounting member (2) to slide along a second direction. The first direction is perpendicular to the second direction.
10. The device for testing the scratch resistance of a material according to any one of claims 1 to 9, characterized in that: The thin product is a flexible film product.