A waterborne high gloss solid color baking paint detection device
By using a synergistic design of permanent magnets and electromagnets, the automated pickup and release of the weight in the coating testing equipment has been achieved, solving the problem of inconvenient weight operation and improving testing efficiency and data reliability.
Patent Information
- Application Number
- CN202521851180.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-29
AI Technical Summary
In existing equipment for testing the impact resistance of coatings, the repeated picking up and raising of the weight is inconvenient, resulting in low testing efficiency and poor repeatability.
The design employs a combination of permanent magnets and electromagnets. The permanent magnets attract the weight, which is then driven to a specified height by the winding mechanism. When the electromagnets are energized, they attract and fix the weight. Combined with scale markings and lifting components, the automatic picking and releasing of the weight is achieved, ensuring precise height adjustment.
The system enables automated recovery of the weight, improving operational convenience, reducing labor intensity, ensuring consistency of testing conditions and data reliability, and avoiding positioning errors and energy waste.
Smart Images

Figure CN224681998U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing equipment in paint production, specifically to a testing device for water-based high-gloss solid color baking paint. Background Technology
[0002] After production, coating products undergo a series of testing procedures. Drying testing is a crucial step in ensuring the quality of the resulting coating, and it includes a range of tests such as physical performance testing, chemical performance testing, and appearance and application performance testing. For impact resistance, there is a relevant national standard, GB / T 1732-2020, which clearly outlines the relevant testing procedures.
[0003] In the prior art, as shown in Chinese Patent No. CN 213121464 U, a related testing device is proposed for the testing process of the impact resistance of coatings. Specifically, it is a coating impact resistance testing device, which includes a support device that is vertically placed on a testing plane. The device also includes a weight and a control device. The weight is located inside the support device, and its upper end is made of magnetic material. The control device includes an electromagnet and a lifting assembly. The electromagnet is located inside the support device and is equipped with a magnetic device for controlling the magnetization or demagnetization of the electromagnet. A vertical groove is opened on one side of the support device, and the groove passes through the support device. The lifting assembly includes a lead screw and a slider. The lead screw is parallel to the groove, and both ends of the lead screw are rotatably connected to the support device. A motor for driving the lead screw to rotate is provided outside one end of the lead screw. The slider is threadedly connected to the lead screw and fixedly connected to the electromagnet.
[0004] It shows a structural design that uses an electromagnet to detect the upward movement of a weighted hammer, allowing it to fall freely and complete the impact.
[0005] Under this basic structure, the experiment requires multiple tests at the same height and at multiple heights, and multiple tests on both sides of the paint surface. However, the current related equipment does not have a very convenient and reasonable way to repeatedly pick up and lift the weight. Utility Model Content
[0006] Therefore, this utility model provides a water-based high-gloss solid color paint testing device, which solves the problem that the weight cannot be easily picked up and put back into place during the testing process.
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0008] A water-based high-gloss solid color paint testing device includes a frame, a base on the frame, a support on the upper end of the base, a die at the center of the support, a punch above the die, an impact assembly above the punch, and the impact assembly including a graduated guide tube, an electromagnet fixed to one side of the guide tube, and a lifting assembly for the electromagnet. The lifting assembly includes a lead screw, a slider slidably mounted on the lead screw, and a motor for rotating the lead screw to drive the slider to rise and fall. The electromagnet is fixed on the slider.
[0009] A permanent magnet for magnetically attracting a weight is inserted inside the conduit. A pulley is installed on the frame above the conduit. A lifting rope is connected to the permanent magnet. The rope is threaded through the pulley. The end of the rope is connected to a winding device that drives the permanent magnet to attract the weight and rise.
[0010] Preferably, the side of the conduit is provided with a longitudinally extending groove, and the electromagnet extends into the conduit through the groove.
[0011] Preferably, the bracket is provided with a retaining ring on its periphery to prevent the weight from slipping out.
[0012] Preferably, the bottom of the bracket is provided with a lifting plate, and the height of the lifting plate and the base is adjusted by adjusting bolts.
[0013] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:
[0014] This technical solution features automated retrieval of the weight, significantly improving operational convenience. Through the coordinated design of permanent magnets and electromagnets, automated pickup and release of the weight are achieved. After the weight is magnetically attracted by the permanent magnet, a winding device drives a rope to lift the permanent magnet to a designated height within the guide tube. At this point, the electromagnet is energized, generating a strong magnetic force that overcomes the magnetic force of the permanent magnet, attracting and fixing the weight, thus completing the automated retrieval. This process requires no manual intervention, significantly shortening the testing cycle, reducing the labor intensity of operators, and avoiding positioning errors caused by manual operation.
[0015] The guide tube is equipped with graduated markings, and combined with the precise control of the lifting assembly, the initial height of the electromagnet and weight can be accurately adjusted. A motor drives a lead screw to rotate, and a slider moves the electromagnet longitudinally along the guide tube. Combined with the graduated scale, the impact height can be precisely set, ensuring consistency of test conditions for each test. This design solves the problems of coarse height adjustment and poor repeatability in traditional devices, significantly improving the comparability and reliability of test data.
[0016] The magnetic force switching design between permanent magnets and electromagnets effectively avoids the risk of the weight accidentally falling off. During the weight lifting phase, the permanent magnets provide the basic attraction force; when the electromagnets are energized, their controllable magnetic force is much greater than that of the permanent magnets, ensuring that the weight is stably fixed to the end of the electromagnet before impact. This mechanism utilizes the low energy consumption of permanent magnets for initial pickup while ensuring test safety through the high controllability of the electromagnets, balancing energy efficiency and reliability. Furthermore, the electromagnets are only energized during attraction, significantly reducing energy consumption. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of the device according to an embodiment of the present invention.
[0018] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction.
[0019] Reference numerals: 100, frame; 101, pulley; 102, winder; 1, base; 11, bracket; 12, die; 13, punch; 2, guide tube; 2a, scale; 21, lead screw; 22, slider; 23, motor; 24, electromagnet; 25, permanent magnet; 26, pull rope; 27, slide groove; 28, retaining ring; 29, lifting frame plate; 291, guide column assembly; 292, adjusting bolt; 3, counterweight. Detailed Implementation
[0020] The following will describe the implementation of this utility model in detail with reference to specific embodiments, so that the process of how this utility model uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.
[0021] Example
[0022] refer to Figure 1 and Figure 2 A water-based high-gloss solid color baking paint testing device includes a frame 100, a base 1 on the frame 100, a support 11 on the upper end of the base 1, a die 12 at the center of the support 11, a punch 13 above the die 12, and an impact assembly above the punch 13. The impact assembly includes a guide tube 2 with a scale 2a, an electromagnet 24 fixed on one side of the guide tube 2, and a lifting assembly for the electromagnet 24. The lifting assembly includes a lead screw 21, a slider 22 slidably mounted on the lead screw 21, and a motor 23 for rotating the lead screw 21 to drive the slider 22 to rise and fall. The electromagnet 24 is fixed on the slider 22.
[0023] A permanent magnet 25 for magnetically attracting the weight 3 is inserted inside the conduit 2. A pulley 101 is installed on the upper frame 100 of the conduit 2. A lifting rope 26 is connected to the permanent magnet 25 and passes through the pulley 101. The end of the rope 26 is connected to a retractor 102 that drives the permanent magnet 25 to attract the weight 3 and rise. In use, the permanent magnet 25 attracts the weight 3, and the retractor 102 winds up and down the rope 26 to raise and lower the weight 3 to a predetermined position. Then, the electromagnet 24 is energized to attract the weight 3, completing the magnetic movement relay of the weight 3. This process mainly involves the detection and retrieval of the weight 3 to automate multiple detection processes at the same height. The retractor 102 is a commercially available mature product. Its functions can be found in the technical solution CN103373640A, which only requires the function of automatically winding up and down the rope 26, and will not be described in detail here.
[0024] This technical solution features automated retrieval of the weight 3, significantly improving operational convenience. During use, the coordinated design of the permanent magnet 25 and electromagnet 24 enables automated pickup and release of the weight 3. After the permanent magnet 25 magnetically attracts the weight 3, the rewinder 102 drives the pull rope 26 to lift the permanent magnet 25 to a designated height within the guide tube 2. At this point, the electromagnet 24 is energized, generating a strong magnetic force that overcomes the magnetic force of the permanent magnet 25, attracting and fixing the weight 3, thus completing the automated retrieval. This process requires no manual intervention, significantly shortening the testing cycle, reducing the labor intensity of operators, and avoiding positioning errors caused by manual operation.
[0025] The guide tube 2 is marked with scale 2a. Combined with the precise control of the lifting assembly, the initial height of the electromagnet 24 and the counterweight 3 can be accurately adjusted. The motor 23 drives the lead screw 21 to rotate, and the slider 22 moves the electromagnet 24 longitudinally along the guide tube 2. Combined with the scale 2a, the impact height can be precisely set, ensuring consistency of test conditions for each test. This design solves the problems of coarse height adjustment and poor repeatability in traditional devices, significantly improving the comparability and reliability of test data.
[0026] The magnetic force switching design between the permanent magnet 25 and the electromagnet 24 effectively avoids the risk of the weight 3 accidentally falling off. During the lifting phase of the weight 3, the permanent magnet 25 provides the basic attraction force; when the electromagnet 24 is energized, its controllable magnetic force is much greater than that of the permanent magnet 25, ensuring that the weight 3 is stably fixed to the end of the electromagnet 24 before impact. This mechanism utilizes the low energy consumption characteristics of the permanent magnet 25 to complete the initial pickup, while ensuring test safety through the high controllability of the electromagnet 24, balancing energy efficiency and reliability. Furthermore, the electromagnet 24 is only energized during attraction, greatly reducing energy consumption.
[0027] In this embodiment, a longitudinally extending groove 27 is provided on the side of the conduit 2, through which the electromagnet 24 extends into the conduit 2. This design ensures the centering and falling stability of the weight 3; the longitudinal groove 27 on the side of the conduit 2 allows the electromagnet 24 to extend into the center of the conduit 2 through the groove 27, ensuring that the weight 3 is always on the axis of the conduit 2 when it is attracted. This design avoids friction on the inner wall of the conduit 2 caused by the eccentric attraction of the weight 3, reducing energy loss and equipment wear, while ensuring the verticality of the falling trajectory of the weight 3 and improving the accuracy of the impact test (such as avoiding uneven stress on the paint film caused by deviation).
[0028] In this embodiment, the support 11 is provided with a retaining ring 28 on its periphery to prevent the weight 3 from slipping out. The retaining ring 28 covers the periphery of the support 11, providing dual protection for safety and testing effectiveness. The retaining ring 28 on the periphery of the support 11 can effectively limit the horizontal displacement that the weight 3 may undergo after falling, preventing the weight 3 from leaving the support 11 area due to impact rebound or paint film rupture and splashing. This design protects the operator from accidental injury and ensures that the weight 3 remains stably in the testing area, facilitating subsequent data recording and equipment reset, and avoiding test interruptions caused by the displacement of the weight 3. At the same time, the protective effect of the retaining ring 28 further reduces the diffusion range of paint film debris, reducing environmental cleanup costs.
[0029] In this embodiment, the bottom of the support 11 is provided with a lifting plate 29, and a guide column assembly 291 structure is provided between the bottom of the lifting plate 29 and the base 1 for support; the height of the lifting plate 29 and the base 1 is adjusted by adjusting bolts 292. This structure is an adaptive design for different sized sheet materials; by combining the lifting plate 29 and the adjusting bolts 292, the bottom height of the support 11 can be quickly adjusted to accommodate sheet materials of different thicknesses (such as metal or sheet materials with a thickness of 0.5mm to 5mm). This design avoids the problem of poor contact between the die 12 and the sheet material due to differences in sheet material thickness (such as the impact force not being fully transmitted to the paint film), ensures that the test conditions meet the standard requirements (such as GB / T 1732-2020 and other paint film impact test specifications), and expands the applicability of the device.
[0030] This invention solves the problems of low operation efficiency, large testing errors, and debris pollution of traditional devices through automated, precise, and safe design, and is suitable for high-precision and environmentally friendly paint film impact performance testing scenarios.
[0031] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.
Claims
1. A water-based high-gloss solid color paint testing device, comprising a frame (100), a base (1) on the frame (100), a support (11) on the upper end of the base (1), a die (12) at the center of the support (11), a punch (13) above the die (12), and an impact component above the punch (13), characterized in that: The impact assembly includes a guide tube (2) with a scale (2a), an electromagnet (24) fixed on one side of the guide tube (2), and a lifting assembly for the electromagnet (24). The lifting assembly includes a lead screw (21), a slider (22) slidably mounted on the lead screw (21), and a motor (23) for rotating the lead screw (21) to drive the slider (22) to rise and fall. The electromagnet (24) is fixed on the slider (22). A permanent magnet (25) for magnetically attracting the weight (3) is inserted inside the conduit (2). A pulley (101) is installed on the upper frame (100) of the conduit (2). A lifting rope (26) is connected to the permanent magnet (25). The rope (26) is threaded on the pulley (101). The end of the rope (26) is connected to a winding device (102) that drives the permanent magnet (25) to attract the weight (3) and rise.
2. The water-based high-gloss solid color paint testing device according to claim 1, characterized in that: The side of the conduit (2) is provided with a longitudinally extending groove (27), and the electromagnet (24) extends into the conduit (2) through the groove (27).
3. The water-based high-gloss solid color paint testing device according to claim 1, characterized in that: The bracket (11) is provided with a retaining ring (28) on its periphery to prevent the weight (3) from slipping out.
4. A water-based high-gloss solid color paint testing device according to claim 1, 2, or 3, characterized in that: The bottom of the bracket (11) is provided with a lifting plate (29), and the height between the lifting plate (29) and the base (1) is adjusted by adjusting bolts (292).
Citation Information
Patent Citations
Wire rewinding machine
CN103373640A
Coating impact resistance detection device
CN213121464U