Scratch-proof experimental device for automobile finish paint

Abstract

The utility model relates to the technical field of anti-scratch experiment devices, in particular to an automobile finish paint anti-scratch experiment device which comprises a base, an experiment groove is formed in the base, a three-axis moving table and a fixing clamp are arranged in the experiment groove in a sliding mode, a scraping plate is arranged on the three-axis moving table, a heat conduction mechanism is arranged on one side of the experiment groove, and a heat conduction mechanism is arranged on the other side of the experiment groove. A rotating blocking door is arranged on the side, away from the three-axis moving table, of the experiment groove, a sliding groove is formed in one side of the upper portion of the experiment groove, a humidifier and sunlight simulation equipment are arranged in the sliding groove in a sliding mode, and a plurality of threaded columns are arranged on the humidifier and the sunlight simulation equipment in a threaded mode; a motor fixedly mounted on the base is arranged at one end of the threaded column, so that the scraping condition of finish paint in different use scenes can be simulated, and the accuracy of an experiment result is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-scratch experimental devices, and more specifically, to an anti-scratch experimental device for automotive topcoats. Background Art

[0002] Automotive topcoat, also known as the last layer of automotive paint, mainly serves to decorate and protect the vehicle body. It is usually a mixture composed of resin, pigment, filler, curing agent, solvent, etc. After a series of complex processes, it is coated on the vehicle body surface to form a firm, beautiful, and durable coating. During the production and processing of automotive topcoats, it is necessary to evaluate the scratch and wear resistance of the automotive topcoat through an anti-scratch experimental device to determine the quality and durability of the topcoat.

[0003] As disclosed in a Chinese patent: An anti-scratch test device, application number: CN202310379587.0, includes: a main device frame; a conveyor belt is arranged on the outer surface of the main device frame, rotating rollers are rotatably connected to the front and rear ends of the main device frame, a cylinder is installed in the left side wall of the main device frame, a fixed pressure rod is hinged to the top of the left side wall of the main device frame, two reciprocating sliders are slidably connected to the top of the main device frame, an electric motor is installed on the top of the reciprocating slider, a reciprocating slide plate is slidably connected in the reciprocating slider, an electric cylinder is installed on the top of the reciprocating slide plate, and a scraping plate is connected to the bottom of the electric cylinder. The sandcloth warp knitted fabric pressed on the conveyor belt by the fixed pressure rod is used to fix the test position of the sandcloth warp knitted fabric, preventing the sandcloth warp knitted fabric from sliding and wrinkling during the scraping test, so as to improve the accuracy of judging the anti-scratch ability of the sandcloth warp knitted fabric during the scraping test, and solve the problems of sandcloth wrinkling and scraping range selection during the test.

[0004] However, in the above technical solution, during the actual use of automotive topcoats, the environmental conditions faced are complex and variable. These environments include long-term exposure to strong sunlight, rainy and humid days, or in extreme hot and humid environments. The topcoat also needs to withstand the dual pressures of high temperature and humidity. However, in the above technical solution, when conducting the scratch test of automotive topcoats, only the effect of the scratch itself is often concerned, while ignoring the influence of the experimental environment on the experimental results. Therefore, the performance of the topcoat in various environments cannot be accurately evaluated, resulting in poor accuracy of the experimental results. Summary of the Utility Model

[0005] The main purpose of the present utility model is to provide an anti-scratch experimental device for automotive topcoats, which can effectively solve the problems in the background technology. During the actual use of automotive topcoats, the environmental conditions can be complex and changeable. These environments include long-term exposure to strong sunlight, rainy and humid days, or extreme hot and humid environments. The topcoat also needs to withstand the dual pressures of high temperature and humidity. However, in the above technical solutions, when conducting the scratch test of automotive topcoats, only the effect of the scratch itself is often concerned, while the influence of the experimental environment on the experimental results is ignored. Therefore, it is impossible to accurately evaluate the performance of the topcoat in various environments, resulting in poor accuracy of the experimental results.

[0006] To achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] An anti-scratch experimental device for automotive topcoats includes a base. An experimental tank is arranged on the base. A three-axis moving table and a fixed fixture are slidably arranged in the experimental tank. A scratch plate is arranged on the three-axis moving table. A heat conduction mechanism is arranged on one side of the experimental tank. A rotating shutter is arranged on the side of the experimental tank away from the three-axis moving table. A chute is arranged on one side above the experimental tank. A humidifier and a sunlight simulation device are slidably arranged in the chute. A number of threaded columns are threadedly arranged on the humidifier and the sunlight simulation device. One end of each threaded column is provided with a motor fixedly installed on the base.

[0008] Preferably, the chute and the experimental tank are interconnected.

[0009] Preferably, the heat conduction mechanism includes a mechanism base. A first groove is arranged on the mechanism base. An acrylic hemisphere is arranged in the first groove.

[0010] Preferably, a second groove is arranged on one side below the first groove. A reflector is inclinedly arranged in the second groove. A through groove is arranged on the side of the second groove close to the experimental tank. A transparent plate is arranged in the through groove.

[0011] Preferably, the first groove is interconnected with the chute.

[0012] Preferably, the second groove is interconnected with the first groove and the through groove.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] (1) When the utility model is in use, first, when a scratching experiment under sunlight irradiation is required, the object coated with topcoat is first placed on the fixed fixture, and then the sunlight simulation device is moved to directly above the experimental tank. Then, the sunlight simulation device is started to perform simulated sunlight irradiation. Subsequently, the scratching experiment on the object is carried out through the three-axis moving platform and the scratching plate, so as to conduct the scratching experiment under sunlight irradiation. When a scratching experiment in a humid environment is required, repeat the above steps, and then start the humidifier to simulate a humid environment by using the humidifier. If it is necessary to further simulate an extreme hot and humid environment, start the sunlight simulation device located above the heat conduction mechanism, and then refract the light emitted by the sunlight simulation device to the reflector through the acrylic hemisphere. Then, the light is reflected to the transparent plate through the inclined reflector. Subsequently, the light passes through the transparent plate and irradiates one side of the object, heating one side of the object, so as to simulate a hot and humid environment on one side of the test object, and the scratching situation of the topcoat in different usage scenarios can be simulated to ensure the accuracy of the experimental results. Description of the Drawings

[0015] Figure 1 is the overall structural schematic diagram of an anti-scratch experiment device for automotive topcoat of the utility model;

[0016] Figure 2 is the front structural schematic diagram of an anti-scratch experiment device for automotive topcoat of the utility model;

[0017] Figure 3 is the structural schematic diagram of the heat conduction mechanism in an anti-scratch experiment device for automotive topcoat of the utility model;

[0018] Figure 4 is the cross-sectional structural schematic diagram of the heat conduction mechanism in an anti-scratch experiment device for automotive topcoat of the utility model.

[0019] In the figure: 1, base; 2, experimental tank; 3, three-axis moving platform; 4, fixed fixture; 5, scratching plate; 6, heat conduction mechanism; 601, mechanism base; 602, first groove; 603, acrylic hemisphere; 604, second groove; 605, reflector; 606, through groove; 607, transparent plate; 7, rotating shutter; 8, chute; 9, humidifier; 10, sunlight simulation device; 11, threaded column; 12, motor. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0021] As shown in Figure 1 and Figure 2 shown, an anti-scratch experimental device for automotive topcoat includes a base 1. An experimental tank 2 is arranged on the base 1. A three-axis moving platform 3 and a fixed fixture 4 are slidably arranged in the experimental tank 2. A scratching plate 5 is arranged on the three-axis moving platform 3. A heat conduction mechanism 6 is arranged on one side of the experimental tank 2. A rotating shutter 7 is arranged on the side of the experimental tank 2 away from the three-axis moving platform 3. A chute 8 is arranged on one side above the experimental tank 2. A humidifier 9 and a sunlight simulation device 10 are slidably arranged in the chute 8. A number of threaded columns 11 are threadedly arranged on the humidifier 9 and the sunlight simulation device 10. One end of the threaded column 11 is provided with a motor 12 fixedly installed on the base 1.

[0022] As shown in Figure 3 and Figure 4 shown, in another embodiment of the present utility model, the heat conduction mechanism 6 includes a mechanism base 601. A first groove 602 is arranged on the mechanism base 601. An acrylic hemisphere 603 is arranged in the first groove 602;

[0023] A second groove 604 is arranged on one side below the first groove 602. A reflector 605 is inclinedly arranged in the second groove 604. A through groove 606 is arranged on the side of the second groove 604 close to the experimental tank 2. A transparent plate 607 is arranged in the through groove 606. When it is necessary to heat one side of the test object in the experimental tank 2 in a humid state to simulate a humid and hot environment on one side of the test object, first start the sunlight simulation device 10 above the heat conduction mechanism 6. Then, the light emitted by the sunlight simulation device 10 is refracted to the reflector 605 through the acrylic hemisphere 603. Then, the light on the inclined reflector 605 is reflected to the transparent plate 607. Subsequently, the light passes through the transparent plate 607 and irradiates one side of the object, heating one side of the object to simulate a humid and hot environment on one side of the test object. This can not only significantly reduce the influence of other factors when simulating a humid and hot environment, but also facilitate the staff to compare the scratching results of wet objects at different temperatures by only simulating a humid and hot environment on one side of the test object.

[0024] The working principle of the anti-scratch experimental device for automotive topcoat:

[0025] In use, first, when a scratching experiment under sunlight is required, the object coated with topcoat is first placed on the fixed fixture 4, and then the threaded column 11 is rotated by the motor 12. Subsequently, the sunlight simulation device 10 is moved above the experimental tank 2 through the threaded column 11. Then, the sunlight simulation device 10 is started to perform simulated sunlight irradiation. At the same time, the rotating shutter 7 is closed. Subsequently, the object is subjected to a scratching experiment through the three-axis moving stage 3 and the scratching plate 5, so as to conduct a scratching experiment under sunlight irradiation. When a scratching experiment in a humid environment is required, the above steps are repeated. Then, the humidifier 9 is moved above the experimental tank 2 through the threaded column 11. Subsequently, the humidifier 9 is started to simulate a humid environment using the humidifier 9. If it is necessary to further simulate an extreme hot and humid environment, the sunlight simulation device 10 located above the heat conduction mechanism 6 is started. Then, the light emitted by the sunlight simulation device 10 is refracted to the reflector 605 through the acrylic hemisphere 603. Then, the light is reflected by the inclined reflector 605 to the transparent plate 607. Subsequently, the light passes through the transparent plate 607 and irradiates one side of the object, heating one side of the object to simulate a hot and humid environment on one side of the test object. Then, the object is subjected to a scratching experiment through the three-axis moving stage 3 and the scratching plate 5. This can not only significantly reduce the influence of other factors when simulating a hot and humid environment, but also, by only simulating a hot and humid environment on one side of the test object, it is convenient for the staff to compare the scratching results of humid objects at different temperatures, and can simulate the scratching situation of the topcoat in different usage scenarios, ensuring the accuracy of the experimental results.

[0026] Obviously, the above embodiments of the present utility model are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is impossible to list all the implementation manners here. Any obvious changes or variations derived from the technical solutions of the present invention still fall within the protection scope of the present invention.

Claims

1. A scratch resistance test device for automobile topcoat, comprising a base (1), characterized in that: The base (1) is provided with an experimental groove (2), a three-axis movable platform (3) and a fixing fixture (4) are slidably arranged in the experimental groove (2), a scraper plate (5) is arranged on the three-axis movable platform (3), a heat conduction mechanism (6) is arranged on one side of the experimental groove (2), a rotating baffle (7) is arranged on the side of the experimental groove (2) away from the three-axis movable platform (3), a slide groove (8) is arranged on the upper side of the experimental groove (2), a humidifier (9) and a sunlight simulation device (10) are slidably arranged in the slide groove (8), a plurality of threaded columns (11) are threadedly arranged on the humidifier (9) and the sunlight simulation device (10), and a motor (12) fixedly mounted on the base (1) is arranged at one end of the threaded column (11).

2. The anti-scratch test device for automobile topcoat according to claim 1, characterized in that: The chute (8) and the experimental tank (2) are connected to each other.

3. The anti-scratch test device for automobile topcoat according to claim 2, characterized in that: The heat conduction mechanism (6) comprises a mechanism base (601), a first groove (602) is provided on the mechanism base (601), and an acrylic hemisphere (603) is provided in the first groove (602).

4. The anti-scratch test device for automobile topcoat according to claim 3, characterized in that: A second groove (604) is arranged on one side below the first groove (602), a reflective plate (605) is arranged obliquely in the second groove (604), a through groove (606) is arranged on one side of the second groove (604) close to the experimental groove (2), and a transparent plate (607) is arranged in the through groove (606).

5. The anti-scratch test device for automobile topcoat according to claim 4, characterized in that: The first groove (602) and the slide groove (8) are communicated with each other.

6. The anti-scratch test device for automobile topcoat according to claim 5, characterized in that: The second groove (604) is in communication with the first groove (602) and the through groove (606).

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