Automobile paint performance testing device
By designing an automotive paint performance testing device that uses brushes and a liquid spraying mechanism to simulate car wash conditions, the standardization problem of paint performance testing has been solved, enabling rapid and accurate paint testing, predicting paint damage, and providing reliable data for OEMs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INTERTEK TESTING SERVICES
- Filing Date
- 2024-12-20
- Publication Date
- 2026-05-19
AI Technical Summary
The lack of standard automotive paint simulation car wash testing equipment in the current technology makes it difficult to test paint performance, which affects the appearance and performance of automobiles.
A test device for automotive paint performance, comprising a brush, a motor, a sample fixture, a PLC controller, and a liquid spraying mechanism, was designed. By simulating a stream of water containing smoke and dust to repeatedly brush the automotive panel, the condition of the paint layer is observed, providing a reliable test basis.
It enables rapid and accurate testing of paint performance under different environments, predicts paint peeling and wear, saves costs, and improves testing efficiency.
Smart Images
Figure CN224263202U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of equipment for testing the impact of car washing on panel paint. Background Technology
[0002] As outdoor transportation, automobiles are constantly exposed to the corrosive effects of atmospheric moisture, oxygen, industrial gases, carbon dioxide, and other substances. Automotive paint forms a strong, continuous film on the surface of components, preventing chemical or electrochemical reactions between the parts and the surrounding environment, thus preventing or delaying damage. Furthermore, the various vibrant colors of paint on car surfaces enhance their appearance, creating a bright and comfortable look that complements the vehicle's personality. A full paint film can substantially improve the quality of a car. With advancements in paint technology, some automotive coatings can also improve comfort and sealing, preventing noise from vibrations. However, if the paint performance is poor and adhesion is weak, paint peeling and wear will occur after a period of washing, causing the car's panels to gradually lose their shine, negatively impacting both aesthetics and performance.
[0003] Therefore, paint material performance testing is an important quality inspection requirement for automotive parts by various OEMs. Currently, there are no official standards, either domestically or internationally, for simulated car wash tests of automotive paint, and therefore no standardized testing equipment. Utility Model Content
[0004] The purpose of this invention is to provide a specialized automotive paint performance testing device to effectively detect the impact of washing on the paint panel of a car.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] An automotive paint performance testing device includes a brush, a motor, a sample fixture, a PLC controller, and a liquid spraying mechanism. The sample fixture is located below the brush and is used to fix an automotive paint panel sample. The brush is connected to the output shaft of the motor. The liquid spraying mechanism is used to spray a stream of water containing soot onto the automotive panel during testing. The PLC controller is the motor controller.
[0007] Furthermore, the brush has a diameter of 400±5mm, a length of 1000±10mm, and bristles made of PE.
[0008] Furthermore, the motor is a stepper motor.
[0009] Furthermore, the sample fixture is a clamping platform that can move back and forth; even further, the moving speed of the clamping platform can reach 120 mm / min.
[0010] Furthermore, the soot-containing water flow refers to artificially simulated wastewater containing a set amount of dust, sulfur dioxide, oxides, etc.
[0011] Furthermore, the liquid injection mechanism has a water flow rate of 1.6 ± 0.1 L / min.
[0012] The beneficial effects of this utility model are:
[0013] The automotive paint performance testing device provided by this utility model can simulate vehicles under different environmental and working conditions, such as repeatedly washing samples in mixed water with added dust or car wash media, and observe the paint layer condition of automotive panel samples after different washing times. This provides a reliable basis for the actual performance of automotive paint and can also provide R&D and production data for OEMs.
[0014] The testing device of this invention can shorten the simulation time and predict the occurrence of paint peeling, paint loss of gloss, paint wear and other conditions under different working conditions. It is simple, time-saving and can also save costs.
[0015] The directional terms "front," "back," "left," and "right" appearing in this patent refer to the directions shown in the accompanying drawings of the specification. They are intended to facilitate explanation and understanding of the technical solution of this patent, rather than to limit the technical features.
[0016] The technical solution of this utility model will be illustrated below with reference to the accompanying drawings and embodiments. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the automotive paint performance testing device provided in this embodiment of the utility model.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Brush, 2. Motor, 3. Sample fixture, 4. PLC controller, 5. Sample Detailed implementation method:
[0020] The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosed technical solutions. It should also be noted that, for ease of description, the accompanying drawings show only the parts relevant to the technical solutions of this application, not the entire structure.
[0021] Before discussing the exemplary embodiments in more detail, it should be mentioned that the structure of the device components and / or modules mentioned in the embodiments, unless otherwise described in detail, is something that can be understood by those skilled in the art based on existing public technologies or is a commercially available product.
[0022] refer to Figure 1This embodiment provides an automotive paint performance testing device, including a brush 1, a motor 2, a sample fixture 3, a PLC controller 4, and a liquid spraying mechanism; the sample fixture 3 is located below the brush 1 and is used to fix the automotive paint panel sample; the brush 1 is connected to the output shaft of the motor 2, the liquid spraying mechanism is used to spray water containing soot onto the automotive panel during testing, and the PLC controller 4 is the controller of the motor 2.
[0023] The preferred embodiment is that the brush 1 is a PE brush with a diameter of 400±5mm and a length of 1000±10mm.
[0024] The motor 2 is preferably a stepper motor, such as a Resel 57 stepper motor with a PLC controller, which can adjust the speed and set the number of experiments.
[0025] The sample fixture 3 adopts a clamping platform that can move back and forth, and the moving speed of the clamping platform is set to 120 mm / min.
[0026] The soot-laden water flow refers to artificially simulated polluted water or car wash detergent with added artificial amounts of dust, sulfur dioxide, oxides, etc., to realistically simulate the impact of actual dust washing on the paint layer of a vehicle.
[0027] The liquid injection mechanism is preferably configured with a water flow rate of 1.6 ± 0.1 L / min.
[0028] During testing,
[0029] 1. Fix the car panel sample with the painted side facing up onto the clamping platform, and then spray water onto the sample.
[0030] 2. Set the number of tests and turn on the brush motor.
[0031] 3. After spraying the cleaning agent, the clamping platform begins to move back and forth to perform the cleaning process.
[0032] 4. The machine will stop after the set number of cycles is reached.
[0033] 5. Remove the sample and inspect its appearance with a magnifying glass.
[0034] This invention provides a testing device that can simulate different working conditions and predict issues such as paint peeling, loss of gloss, and paint abrasion. It fills a gap in this testing field, helps improve the compatibility of automotive paint performance with practical applications, provides reliable testing data for OEMs, and offers practical benefits for research and development as well as finished product testing.
[0035] Meanwhile, the testing device of this invention can shorten simulation time, is accurate, fast, simple, save costs, and improve testing efficiency.
[0036] It should be noted that although the above embodiments describe exemplary implementations of this patent, these descriptions should not be construed as limiting. Rather, those skilled in the art can make various changes and modifications without departing from the scope of the technical solutions claimed in this patent as defined in the appended claims.
Claims
1. An automotive paint performance testing apparatus, characterized by: It comprises a brush (1), a motor (2), a sample fixture (3), a PLC controller (4) and a liquid injection mechanism; the sample fixture (3) is arranged below the brush (1) and used for fixing a sample of an automobile paint plate; the brush (1) is connected with an output shaft of the motor (2); the liquid injection mechanism is used for spraying a water flow containing smoke dust on the automobile panel during testing; and the PLC controller (4) is a controller of the motor (2).
2. The automotive paint performance testing apparatus of claim 1, wherein: The brush (1) has a diameter of 400±5 mm and a length of 1000±10 mm.
3. The automotive paint performance testing apparatus of claim 1, wherein: The motor (2) is a stepping motor.
4. The automotive paint performance testing apparatus of claim 1, wherein: The sample fixture (3) is a clamping platform moving forward and backward.
5. The automotive paint performance testing apparatus of claim 4, wherein: The moving speed of the clamping platform reaches 120 mm / min.
6. The automotive paint performance testing apparatus of claim 1, wherein: The water flow containing smoke dust refers to artificial simulated sewage containing a set amount of dust, sulfur dioxide and oxide.
7. The automotive paint performance testing apparatus of claim 1, wherein: The liquid injection mechanism has a water injection flow of 1.6±0.1 L / min.
8. The automotive paint performance testing apparatus of claim 2, wherein: The sample fixture (3) is a clamping platform moving forward and backward, and the moving speed reaches 120 mm / min.