Automatic paint film flexibility tester
By designing an automated paint film flexibility tester, the pressure is automatically controlled by cylinders and pressure sensors, the problem of inaccurate manual pressure is solved, and the testing accuracy and detection efficiency are improved.
Patent Information
- Application Number
- CN202420974791.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing paint film flexibility testing methods are not very accurate due to inaccurate manual compression, resulting in low testing accuracy and cumbersome testing process, which is not suitable for large-scale testing.
An automated paint film flexibility tester was designed, using the first cylinder to automatically push the pressing block to press the paint film test plate on the shaft rod, and combined with the pressure sensor to accurately control the pressure to improve the test accuracy.
Through automated testers, the accuracy of paint film flexibility testing is improved, manpower is saved, and the inspection process is simplified, making it suitable for large-scale inspection.
Smart Images
Figure CN222561463U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of paint film flexibility testing, in particular to an automated paint film flexibility testing instrument. Background Art
[0002] Paint film, also known as coating film, is a solid continuous film formed by one or more coats of paint applied on the substrate. It is necessary to test its comprehensive properties such as toughness (elasticity, plasticity) and adhesion after bending under external force. This helps us understand the performance of the paint film under external force, thereby ensuring the quality and reliability of the coating film in practical applications.
[0003] The current measurement method is that after the paint film is completely dry, under constant temperature and humidity conditions, with the paint film facing upward, the paint film test plate is pressed tightly on the shaft rod with both hands and bent around the shaft rod. The bending action is completed within 2-3 seconds using the strength of the two thumbs; after bending, the thumbs of both hands should be symmetrical to the center line of the shaft rod. Shaft rods of different diameters are used during the measurement process because on shaft rods of different diameters, after the coating sample is bent around the shaft rod, the elongation of the coating increases as the diameter of the shaft rod decreases, thereby rating the flexibility of the paint film; during the rating, a 4x magnifying glass is used to observe whether the paint film has damage such as reticulation, cracks and peeling. However, the method of manually pressing the paint film test plate is not able to control the pressing force each time, resulting in low test accuracy. During the detection process, if there is a small error, it will affect the detection structure. At the same time, due to the cumbersome process, it is not convenient to carry out large-scale coating film detection, which is easy to cause waste of manpower and material resources. Utility Model Content
[0004] The utility model aims to provide an automated paint film flexibility tester to solve the problem of low test accuracy caused by manual pressure on a paint film test plate.
[0005] In order to solve the above problems, the technical solutions provided are as follows:
[0006] An automated paint film flexibility tester comprises a test box, wherein a workbench is provided in the test box, an arc-shaped groove is provided in the center of the workbench, a threaded hole is provided on the rear side of the arc-shaped groove, shaft rods of different diameters can be replaced and fixedly installed in the threaded hole, clamping mechanisms for clamping a paint film test plate are provided on both sides of the top of the arc-shaped groove, a pressure block is provided above the arc-shaped groove, a pressure sensor is provided on the pressure block, a vertically arranged first cylinder is fixedly connected to the top of the pressure block, a second cylinder is fixedly connected to one side of the upper part of the cylinder body of the first cylinder, the second cylinder is horizontally arranged on the top surface of the test box, and the second cylinder pushes the first cylinder to move horizontally on the test box.
[0007] The basic principle of the above technical solution is: the paint film test plate is clamped and placed above the arc-shaped groove through the clamping mechanism, and the first cylinder is started to extend so that the pressure block presses the paint film test plate downward on the shaft rod. The pressure sensor can accurately monitor the pressure used by the pressure block, thereby controlling the extension length of the first cylinder in conjunction with the control, and then controlling the clamping force to improve the accuracy of the paint film flexibility test. After each measurement is completed, the shaft rods of different diameters are replaced in time and the measurement is continued to complete the rating of the paint film flexibility. The second cylinder is extended or shortened to push the first cylinder to slide horizontally on the test box, so that the pressure block can be adjusted to act on different horizontal positions of the paint film test plate.
[0008] The beneficial effect of the above technical solution is that compared with the existing method of manually pressing the paint film test plate, this solution uses the first cylinder to automatically push the pressure block instead of manually pressing the paint film test plate, saving manpower, and jointly controlling the extension length of the first cylinder with the pressure sensor, thereby controlling the clamping force and improving the accuracy of the paint film flexibility test.
[0009] Furthermore, the clamping mechanism includes an L-shaped placement block, the bottom end of which is fixedly connected to both sides of the top of the arc-shaped groove, and the top of the L-shaped placement block is rotatably connected with an elastic clip. The paint film test plate is placed on the step formed by the L-shaped placement block, and the elastic clip is rotated to press on the paint film test plate, so that the paint film test plate can be clamped.
[0010] Furthermore, a through slot is provided above the test box, and the first cylinder passes through the through slot and enters the test box. Slideways are provided on both sides of the through slot, and two sliders slidably connected in the slideways are fixedly connected on both sides of the first cylinder. The second cylinder telescopes and pushes the first cylinder, and the slider slides in the slideway, so that the first cylinder can move horizontally above the test box through the through slot.
[0011] Furthermore, a tool box is provided in the test box under the workbench, and shaft rods of different diameters are stored and placed in the tool box.
[0012] Furthermore, a lighting strip is provided on the inner side of the top of the test box, which enables the tester to observe the pressing condition of the paint film test plate more clearly.
[0013] Furthermore, a controller is provided on the outside of the test box, and the controller controls the opening and closing of the first cylinder, the second cylinder and the lighting strip. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a front view structural diagram of the tester of the utility model;
[0015] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;
[0016] Figure 3 It is a schematic diagram of the top view of the structure of the tester of the utility model;
[0017] Figure 4 Schematic diagram of the structure of the shaft rod.
[0018] The figure marks in the drawings of the specification include: test box 1, workbench 2, arc-shaped groove 3, threaded hole 4, shaft rod 5, screw 6, L-shaped placement block 7, elastic clip 8, pressure block 9, first cylinder 10, through groove 11, slideway 12, slider 13, second cylinder 14, tool box 15, lighting strip 16, controller 17, paint film test plate 18, connecting rod 19. DETAILED DESCRIPTION
[0019] The following is further described in detail through specific implementation methods:
[0020] The embodiment is basically as shown in the attached Figure 1-4 As shown:
[0021] An automated paint film flexibility tester, such as Figure 1 As shown, the test box 1 includes a test box 1, a workbench 2 is arranged in the test box 1, an arc groove 3 is opened in the center of the workbench 2, a threaded hole 4 is arranged at the rear side of the arc groove 3, and shaft rods 5 of different diameters can be replaced and fixed in the threaded hole 4, such as Figure 4 As shown, the ends of the shaft rods 5 of different diameters are provided with screw rods 6 of the same specification, and the shaft rods 5 can be suspended and placed in the arc groove 3 by cooperating with the screw rods 6 and the threaded holes 4. The two sides of the top of the arc groove 3 are provided with clamping mechanisms for clamping the paint film test plate 18, such as Figure 2 As shown, the clamping mechanism includes an LL-type placement block 7, the bottom end of the LL-type placement block 7 is fixedly connected to the two sides of the top of the arc-shaped groove 3, the top of the LL-type placement block 7 is rotatably connected with an elastic clip 8, the paint film test plate 18 is placed on the step formed by the LL-type placement block 7, and the elastic clip 8 is rotated to press on the paint film test plate 18 to clamp the paint film test plate 18.
[0022] A pressure block 9 is provided above the arc groove 3, and a pressure sensor is provided on the pressure block 9. The pressure block 9 is divided into two left and right blocks, and the left and right blocks are connected by a connecting rod 19. A vertically arranged first cylinder 10 is fixedly connected to the middle of the top of the connecting rod 19. Figure 3As shown, a through slot 11 is provided on the top of the test box 1, and the first cylinder 10 passes through the through slot 11 and enters the test box 1. Slideways 12 are provided on both sides of the through slot 11. Two sliders 13 slidably connected to the slideways 12 are fixedly connected on both sides of the first cylinder 10. A second cylinder 14 is fixedly connected to the left side of the upper cylinder body of the first cylinder 10. The second cylinder 14 is arranged horizontally on the left side of the top surface of the test box 1. The second cylinder 14 pushes the first cylinder 10 to move horizontally on the test box 1. A tool box 15 is provided under the workbench 2 in the test box 1, and a lighting strip 16 is provided on the inner side of the top of the test box 1. A controller 17 is provided on the outside of the test box 1, and the controller 17 controls the opening and closing of the first cylinder 10, the second cylinder 14 and the lighting strip 16.
[0023] The specific implementation process is as follows:
[0024] The paint film test plate 18 is placed on the step formed by the LL-type placement block 7, and the elastic clip 8 is rotated to press on the paint film test plate 18 to clamp the paint film test plate 18, so that the paint film test plate 18 is placed above the arc groove 3. The first cylinder 10 is started to extend by the controller 17 so that two symmetrical pressure blocks 9 press the paint film test plate 18 downward on the shaft rod 5 from both sides of the paint film test plate 18. The pressure sensor can accurately monitor the pressure used by the pressure block 9, thereby controlling the extension length of the first cylinder 10 in a linked manner, and then controlling the clamping force to improve the test accuracy of the paint film flexibility. After each measurement is completed, the shaft rod 5 of different diameters is replaced in time, and the measurement is continued to complete the rating of the paint film flexibility. The second cylinder 14 is extended or shortened to push the first cylinder 10 to slide horizontally on the test box 1, so that the pressure block 9 can be adjusted to act on different horizontal positions on the paint film test plate 18.
[0025] The above is only an embodiment of the utility model, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.
Claims
1. An automated paint film flexibility tester, comprising a test box, characterized in that: A workbench is provided in the test box, an arc-shaped groove is provided in the center of the workbench, a threaded hole is provided on the rear side of the arc-shaped groove, shaft rods of different diameters can be replaced and fixedly installed in the threaded hole, clamping mechanisms for clamping the paint film test plate are provided on both sides of the top of the arc-shaped groove, a pressure block is provided above the arc-shaped groove, a pressure sensor is provided on the pressure block, a vertically arranged first cylinder is fixedly connected to the top of the pressure block, a second cylinder is fixedly connected to one side of the upper part of the cylinder body of the first cylinder, the second cylinder is horizontally arranged on the top surface of the test box, and the second cylinder pushes the first cylinder to move horizontally on the test box.
2. An automated paint film flexibility tester according to claim 1, characterized in that: The clamping mechanism comprises an L-shaped placing block, the bottom end of which is fixedly connected to both sides of the top end of the arc-shaped groove, and the top end of the L-shaped placing block is rotatably connected with an elastic clip.
3. An automated paint film flexibility tester according to claim 2, characterized in that: A through slot is arranged above the test box, and the first cylinder passes through the through slot and enters the test box. Slideways are arranged on both sides of the through slot, and two sliding blocks slidably connected to the slideways are fixedly connected to both sides of the first cylinder.
4. An automated paint film flexibility tester according to claim 1, characterized in that: The test box body is provided with a tool box under the workbench.
5. An automated paint film flexibility tester according to claim 1, characterized in that: A lighting strip is arranged on the inner side of the top end of the test box.
6. An automated paint film flexibility tester according to claim 5, characterized in that: A controller is arranged outside the test box, and the controller controls the opening and closing of the first cylinder, the second cylinder and the lighting strip.