Friction head and friction device for paint wear experiment

Abstract

The utility model relates to the technical field of paint surface detection, in particular to a friction head and a friction device for a paint wear experiment. The friction head for the paint wear experiment comprises a friction plate, wherein a friction layer which is in contact with a paint surface and rubs the paint surface is arranged on the working surface of the friction plate. The universal structure is fixedly connected with the connecting face of the friction plate and used for changing the friction direction of the friction layer through pressure borne by the friction plate. And the connecting part is fixedly connected to the universal structure. When the paint surface needs to be detected, the friction layer of the friction plate makes contact with the paint surface through pressure, the universal structure rotates under the action of the pressure on the friction plate, the surface normal of the friction plate is perpendicular to the paint surface, and therefore the friction layer makes full contact with the paint surface, the paint surface and the friction layer slide relatively, the paint surface slides on the surface of the paint surface, and friction is completed. The device is suitable for samples with angles or radians on the surfaces, simple in structure, high in applicability and convenient to popularize and implement.

Description

Technical Field

[0001] This utility model relates to the field of paint surface testing technology, specifically to a friction head and friction device for paint wear testing. Background Technology

[0002] Camouflage coatings are special coatings used to simulate and deceive enemy reconnaissance methods. These coatings are typically made from materials with special visual effects, simulating the appearance of various natural environments and object surfaces, making them undetectable to the naked eye. Camouflage coatings are widely used in the military field, primarily to protect military equipment and facilities, making them difficult for the enemy to detect. The main characteristics of camouflage coatings are as follows: 1. High Simulation: Camouflage coatings need to imitate the appearance of various natural environments and object surfaces, therefore they usually have strong visual simulation capabilities, making it difficult for the human eye to distinguish between real and fake targets. 2. Anti-interference: To improve the camouflage effect, modern camouflage coatings usually contain multiple anti-interference materials such as radiation-resistant, heat-resistant, and visible light-resistant materials, making it difficult for enemy detectors to detect the target. 3. Maintainability: Camouflage coatings are highly maintainable, and damaged parts can be repaired to a certain extent to maintain the camouflage state. 4. Versatility: Different camouflage coatings need to be developed according to different camouflage targets and scenarios, therefore camouflage coatings have high research and development and production costs. 5. Rapid Upgradability: As enemy detection technologies evolve, camouflage coatings also need constant updates to adapt to new detection methods. my country has extensive research and application experience in the field of camouflage coatings and has successfully developed a variety of high-performance camouflage coatings, providing effective protection for military equipment.

[0003] Paint testing is the process of inspecting the technical specifications of paint products. Here are some common paint testing methods: 1. Appearance inspection: Checking the paint's color, odor, density, viscosity, and other physical properties, as well as for defects such as bubbles and sediment. 2. Color difference inspection: Detecting the color deviation of the paint under different light sources and whether it conforms to the specified color difference range. 3. Weather resistance inspection: Checking the paint's performance under different weather conditions (such as sunlight, rain, cold, etc.), and whether problems such as fading, chalking, and cracking occur. 4. Adhesion inspection: Checking the adhesion between the paint and the surface of the coated object, including whether the coating is uniform and whether it will peel off. 5. Abrasion resistance inspection: Checking whether the paint will experience wear, peeling, blistering, or other problems during use. 6. Corrosion resistance inspection: Checking the paint's resistance to contact with chemicals such as acids, alkalis, and salts. 7. Flame retardancy inspection: Checking the paint's stability under combustion conditions, and whether it will produce dense smoke or toxic gases. 8. Impact resistance inspection: Checking the paint's durability under impact. 9. Rust Resistance Test: This tests the coating's ability to prevent rust when exposed to water or in humid environments. These are some common coating testing methods. Of course, there are other specialized testing methods; the specific method should be selected based on the characteristics of the coating product and its intended use.

[0004] Camouflage coatings are often a combination of multiple pigments sprayed together. Specially manufacturing paint samples can lead to differences in process from the actual product or make the process more complicated. In addition, some samples are not planar structures, making it difficult to test them with conventional testing equipment after sampling. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a friction head for paint abrasion testing, the friction head for paint abrasion testing includes:

[0006] The friction plate has a friction layer on its working surface for contacting and rubbing the paint surface.

[0007] The universal structure is fixedly connected to the connecting surface of the friction plate. It is used to change the friction direction of the friction layer by the pressure on the friction plate and to make contact with the paint surface.

[0008] The connecting part is fixedly connected to the universal joint structure.

[0009] Preferably, when the friction plate is rectangular, two sides are aligned with its friction direction.

[0010] Preferably, the friction plate is a circular sheet structure.

[0011] Preferably, the friction plate is a circular plate structure with parallel sides perpendicular to the sliding direction at the front and back.

[0012] Preferably, the universal structure and the friction plate are detachably and fixedly connected by a connector.

[0013] Preferably, the universal structure is provided with a limiting component to restrict its circumferential rotation.

[0014] Preferably, the limiting component includes a positioning protrusion and a positioning notch. The positioning notch is formed on the universal joint, and the positioning protrusion is fixedly connected to the universal ball. The positioning protrusion is fitted into the inside of the positioning notch, and there is a gap between the inner edges of the positioning protrusion and the positioning notch.

[0015] Preferably, the connecting part is a polygonal prism structure, and the end of the connecting part is provided with an adsorption part for adsorption and fixation.

[0016] Preferably, the end of the connecting part is provided with a positioning hole, and a magnet for adsorption and fixation is installed inside the positioning hole.

[0017] This utility model also provides a friction device for paint wear testing, including a mounting base, a mounting frame, a lifting detection rod, a sliding positioning frame, and a pushing component;

[0018] The above-mentioned friction head for paint wear testing; the mounting bracket is mounted on the mounting base; the lifting detection rod is mounted on the mounting bracket in a liftable manner, and the friction head is mounted on the bottom of the lifting detection rod; the sliding positioning frame is slidably placed on the mounting base; and the pusher is mounted on the mounting base and connected to the sliding positioning frame.

[0019] The technical effects and advantages of this invention are as follows: When testing a paint surface, pressure is applied to bring the friction layer of the friction plate into contact with the paint surface. Under pressure, the omnidirectional structure of the friction plate rotates, making the normal line of the friction plate perpendicular to the paint surface, thus achieving full contact between the friction layer and the paint surface. The paint surface and the friction layer slide relative to each other, thereby completing the friction process. This invention is suitable for samples with angles or curvatures on their surfaces, has a simple structure, strong applicability, and is easy to promote and implement. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of a friction head for paint wear testing proposed in this utility model.

[0021] Figure 2 This is a schematic diagram of the internal structure of a friction head for paint wear testing proposed in this utility model.

[0022] Figure 3 This is a three-dimensional structural diagram of the universal joint in a friction head for a paint wear test proposed in this utility model.

[0023] Figure 4 This is a schematic diagram of the friction plate in a friction head for a paint wear test proposed in this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of a friction device for paint wear testing proposed in this utility model.

[0025] Explanation of reference numerals in the attached drawings: 1. Connecting part; 2. Adsorption part; 3. Universal ball; 4. Universal seat; 5. Friction plate; 6. Friction layer; 7. Connecting piece; 8. Positioning notch; 9. Positioning protrusion; 10. Positioning hole; 11. Magnet; 12. Mounting bracket; 13. Lifting detection rod; 14. Sliding positioning bracket; 15. Pushing piece; 16. Mounting seat. Detailed Implementation

[0026] Embodiments of this disclosure are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are used only to explain this disclosure, and should not be construed as limiting this disclosure. Rather, embodiments of this disclosure include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims. Example

[0027] refer to Figures 1-2 This embodiment proposes a friction head for paint abrasion testing, used to test the surface abrasion of paint, especially for paint samples with inclined or slightly curved surfaces. The friction head for paint abrasion testing may include:

[0028] The friction plate 5 has a friction layer 6 on its working surface, which is used to contact and rub the paint surface. The friction plate 5 can be rectangular or circular, or other structures, which will not be elaborated here. When the friction plate 5 is rectangular, two sides of the rectangle are aligned with the friction direction, ensuring that the friction amount of the friction marks is the same, facilitating uniform observation and evaluation. Alternatively, the friction plate 5 can be circular. This circular structure does not restrict the sliding direction of the friction plate 5; by observing the different friction amounts in different lateral positions, a comprehensive assessment can be made. The friction plate 5 can also be a circular structure with parallel sides perpendicular to the sliding direction at the front and back. This creates friction marks with the same friction amount in the middle and gradually decreasing friction amount on both sides, facilitating uniform and prominent observation and effective evaluation. Specific details will not be elaborated here. The friction plate 5 can be a metal steel sheet structure, which has a certain degree of rigidity and toughness. To increase the applicability of the friction plate 5, its size generally does not need to be too large. If the friction plate 5 is a circular sheet structure, its radius is generally 2mm-10mm. Of course, other size settings are not excluded, but will not be elaborated here. The friction layer 6 can be set with different mesh counts according to friction requirements. Its specific details are existing technology and will not be elaborated here.

[0029] A universal structure, fixedly connected to the connecting surface of the friction plate 5, is used to change the friction direction of the friction layer 6 by the pressure applied to the friction plate 5, thereby adapting to paint surfaces with different slope angles. The universal structure can be fixedly connected to the middle position of the connecting surface of the friction plate 5, thus ensuring uniform force on the friction surface of the friction plate 5. The connecting surface of the friction plate 5 is opposite to the friction layer 6; details are not elaborated here. The universal structure may include a universal ball 3 and a universal seat 4. The universal ball 3 rotatably fits into the universal seat 4. The specific details of the universal structure are prior art and will not be elaborated here. (Reference) Figures 3-4The universal joint mechanism's universal ball 3 or universal seat 4 is fixedly connected to the friction plate 5. The universal joint structure and the friction plate 5 can be detachably fixedly connected via a connector 7. The connector 7 can be a threaded connection, including bolts and nuts, which will not be elaborated here. Alternatively, it can be a movable nested column structure, which will also not be elaborated here. By connecting via the connector 7, the friction plate 5 and the universal joint structure can be processed separately and then assembled. This facilitates processing and allows for easy replacement of friction plates 5 with different specifications of friction layers 6, thus enabling the use of friction layers 6 with different friction specifications and improving its applicability, which will not be elaborated here. The universal structure can be oriented in any direction. When it is necessary to restrict the sliding direction of the friction plate 5, a limiting component needs to be provided on the universal structure. The limiting component may include a positioning protrusion 9 and a positioning notch 8. The positioning notch 8 is opened on the universal seat 4, and the positioning protrusion 9 is fixedly connected to the universal ball 3. The positioning protrusion 9 is fitted into the inside of the positioning notch 8. There is a gap between the inner edges of the positioning protrusion 9 and the positioning notch 8, so that the positioning protrusion 9 can rotate inside the positioning notch 8 as the universal ball 3 rotates inside the universal seat 4. The specific details are not elaborated here.

[0030] The universal structure is connected to a connecting part 1, which is used to connect to the friction device for paint abrasion testing. The connecting part 1 can be a threaded connection, but this is cumbersome. Alternatively, the connecting part 1 can be a polygonal prism structure. The friction device for paint abrasion testing has polygonal holes corresponding to the connecting part 1. When the friction head needs to be installed, the polygonal prism can be inserted into the polygonal hole to complete the installation. The end of the connecting part 1 can be provided with an adsorption part 2. Adsorption by the adsorption part 2 can prevent the friction head from falling off due to gravity. The adsorption part 2 can be a magnet. In this case, the connecting part 1 needs to be made of non-ferrous material, and the polygonal hole also needs to be made of non-ferrous material and have a magnet installed. When the connecting part 1 is installed into the polygonal hole, the magnets attract each other, thus completing the installation of the friction head. The mutual attraction of the magnets can counteract the gravity of the friction head, preventing it from falling off. To increase the stability of the friction head installation, a positioning hole 10 can be provided at the end of the connecting part 1. A magnet is installed inside the positioning hole 10, and a positioning post is fixedly installed at the corresponding position of the polygonal hole. A magnet is installed on the positioning post. During installation, the connecting part 1 is inserted into the polygonal hole, the positioning post is embedded into the positioning hole 10, and the magnets attract each other, thus completing the installation. When it is necessary to inspect the paint surface, pressure is applied to bring the friction layer 6 of the friction plate 5 into contact with the paint surface. Under the pressure, the universal ball 3 and universal seat 4 rotate, making the normal line of the friction plate 5 perpendicular to the paint surface, thus achieving full contact between the friction layer 6 and the paint surface. The paint surface and the friction layer 6 slide relative to each other, thus sliding on the paint surface to complete the friction. This facilitates the detection of friction marks using specialized instruments. The specialized instruments used for detection are existing technologies and will not be described in detail here. Example

[0031] refer to Figure 5 The friction device for the paint abrasion test may include a mounting base 16, which forms the mounting structure. The mounting base 16 may be a flat plate, and details are not elaborated here. A mounting frame 12 is mounted on the mounting base 16 to form the mounting foundation. The mounting frame 12 may be an L-shaped structure or a gantry structure. A lifting detection rod 13 is mounted on the mounting frame 12 in a lifting manner. The friction head may be mounted on the bottom of the lifting detection rod 13. Weights may be placed on the lifting detection rod 13. By placing weights of different weights, different levels of friction pressure can be controlled, and details are not elaborated here. A sliding positioning frame 14 is slidably placed on the mounting base 16 to hold the paint sample. The sliding positioning frame 14 may be a flat plate and is equipped with clamps. When it is necessary to test the paint sample, the paint sample can be fixed on the sliding positioning frame 14 by the clamps. The pusher 15 is mounted on the mounting base 16 and connected to the sliding positioning frame 14. The pusher 15 drives the sliding positioning frame 14 to slide. The pusher 15 can be a lead screw and a rotating structure. One end of the lead screw is rotatably connected to one end of the sliding positioning frame 14. The pusher 15 is nested in the mounting base 16. The rotating structure drives the lead screw to rotate, thereby driving the sliding positioning frame 14 to slide, so that the paint surface of the paint sample on it slides relative to the friction layer 6, thus completing the friction. The applied friction force can be quantitatively controlled by the weight and the gravity of the lifting detection rod 13. By raising and lowering the lifting detection rod 13, the friction head can be raised and lowered to adapt to the height and angle of the paint surface. The rotating structure can be a turntable or a motor, which will not be described in detail here.

[0032] It should be understood that the various forms of processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this disclosure can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution disclosed in this disclosure can be achieved, and this is not limited herein.

[0033] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A friction head for paint abrasion testing, characterized in that, The friction head used for the paint wear test includes: The friction plate (5) has a friction layer (6) on its working surface for contacting and rubbing the paint surface. The universal structure is fixedly connected to the connecting surface of the friction plate (5). It is used to change the friction direction of the friction layer (6) by the pressure received by the friction plate (5) and to make contact with the paint surface. The connecting part (1) is fixedly connected to the universal structure.

2. A rub head for paint wear testing according to claim 1, wherein, When the friction plate (5) is rectangular, its two sides are aligned with its friction direction.

3. A rub head for paint wear testing according to claim 1, wherein, The friction plate (5) is a circular sheet structure.

4. A rub head for paint wear testing according to claim 1, wherein, The friction plate (5) is a circular plate structure with parallel sides in the vertical sliding direction at the front and back.

5. A rub head for paint wear testing according to claim 1 wherein, The universal structure and the friction plate (5) are detachably and fixedly connected by the connector (7).

6. A rub head for paint wear testing according to claim 1 wherein, The universal joint structure is equipped with a limiting component that restricts its circumferential rotation.

7. A rub head for paint wear testing according to claim 6, wherein, The limiting component includes a positioning protrusion (9) and a positioning notch (8). The positioning notch (8) is opened on the universal seat (4). The positioning protrusion (9) is fixedly connected to the universal ball (3). The positioning protrusion (9) is fitted into the inside of the positioning notch (8). There is a gap between the inner edges of the positioning protrusion (9) and the positioning notch (8).

8. A rub head for paint wear testing according to claim 1 wherein, The connecting part (1) is a multi-prism structure, and the end of the connecting part (1) is provided with an adsorption part (2) for adsorption and fixation.

9. A rub head for paint wear testing according to claim 1 wherein, The connecting part (1) has a positioning hole (10) at its end, and a magnet for adsorption and fixation is installed inside the positioning hole (10).

10. A friction device for paint abrasion testing, characterized in that, It includes a mounting base (16), a mounting bracket (12), a lifting detection rod (13), a sliding positioning bracket (14), and a pusher (15); The friction head for paint wear testing as described in any one of claims 1-9; the mounting bracket (12) is mounted on the mounting base (16); the lifting detection rod (13) is mounted on the mounting bracket (12) in a liftable manner, and the friction head is mounted on the bottom of the lifting detection rod (13); the sliding positioning frame (14) is slidably placed on the mounting base (16); the pusher (15) is mounted on the mounting base (16) and connected to the sliding positioning frame (14).

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