Paint film adhesive force testing device

Abstract

The utility model discloses a paint film adhesive force testing device which comprises a mounting seat, a scribing assembly and a translation mechanism, the scribing assembly comprises a tool apron and a scribing blade fixed on the tool apron, and the tool apron is movably mounted on the mounting seat; the translation mechanism comprises a driving motor connected with the mounting seat, a pull rod and a guide assembly; and when the driving motor drives the pull rod, the pull rod pulls the mounting seat to horizontally move on the guide assembly, so that the gridding blade scratches the surface of the workpiece. Therefore, the horizontal moving mechanism is adopted to realize horizontal automatic moving and scratching of the gridding blade on the surface of the workpiece, and the consistency of the depth and the cross section of each scratch is ensured by accurately controlling the moving track and the applied force of the gridding blade, so that the stability and the repeatability of a test result are remarkably improved. In addition, interference of human factors on test results is reduced through automatic operation, the reliability and consistency of the test process are further improved, and the high efficiency and precision of the paint film adhesion test are ensured.

Description

Technical Field

[0001] This utility model relates to the field of paint film adhesion testing technology, and specifically to a paint film adhesion testing device. Background Technology

[0002] The most commonly used testing instrument for coatings is the cross-cut adhesion tester. However, current technology typically employs manual inspection, where the cross-cut adhesion tester is manually pulled to scratch the coating film. Because it is difficult to ensure the blade is perpendicular to the test panel and that the applied force is consistent during manual operation, the depth to which the blade penetrates the test panel varies, resulting in an uneven cross-section. This directly affects the accuracy of the test results and leads to low stability and reliability.

[0003] Therefore, there is an urgent need to design a paint film adhesion testing device to overcome the shortcomings of existing technologies. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this invention provides a paint film adhesion testing device. It employs a translation mechanism to automatically move a cross-cutting blade horizontally across the workpiece surface to create scratches. By precisely controlling the blade's trajectory and applied force, the depth and cross-section of each scratch are ensured to be consistent, thereby improving the accuracy of the test results and significantly enhancing their stability and repeatability. Furthermore, automated operation reduces human interference with the test results, further improving the reliability and consistency of the testing process and ensuring the efficiency and accuracy of the paint film adhesion test.

[0005] The technical solution adopted by this utility model to solve its problem is:

[0006] A paint film adhesion testing device, comprising:

[0007] Mounting base;

[0008] A grading assembly includes a cutter holder and a grading blade fixed on the cutter holder, the cutter holder being movably mounted on the mounting base;

[0009] The translation mechanism includes a drive motor, a pull rod, and a guide assembly connected to the mounting base;

[0010] When the drive motor drives the pull rod, the pull rod pulls the mounting base horizontally on the guide assembly so that the scribing blade scribing marks the workpiece surface.

[0011] In a preferred embodiment, a guide block is provided on one side of the mounting base, and a guide groove is provided on the tool holder to cooperate with the guide block. The tool holder is installed on the mounting base by snapping together with the guide block through the guide groove.

[0012] In a preferred embodiment, the tool holder also includes a fastener, and the tool holder is provided with a screw hole that communicates with the guide groove. When the tool holder is installed on the mounting base, it is fastened to the screw hole by the fastener to achieve fixation.

[0013] In a preferred embodiment, a counterweight is also included, and a recess is provided on the top of the tool holder. The counterweight is installed in the recess and fastened with screws.

[0014] In a preferred embodiment, the bottom of the blade holder is provided with a groove, a portion of the dicing blade is engaged in the groove, and the dicing blade is fixed to the groove by screws.

[0015] In a preferred embodiment, the bottom of the scribing blade is provided with teeth for scratching the surface of the workpiece.

[0016] In a preferred embodiment, a first connector is provided on the other side of the mounting base, and a second connector is provided at one end of the pull rod, wherein the first connector and the second connector are hinged together.

[0017] In a preferred embodiment, the guide assembly includes a guide rail and a slider slidably connected to the guide rail, and the mounting base is connected to the slider.

[0018] In a preferred embodiment, the system further includes a first seat plate disposed at one end of the guide rail and a second seat plate disposed at the other end of the guide rail; the bottom of the first seat plate is provided with a first adjusting support rod, which can drive the first seat plate to rise and fall when the first adjusting support rod is adjusted.

[0019] The second seat plate is provided with a second adjusting support rod at its bottom. When the second adjusting support rod is adjusted, the second seat plate can be raised or lowered.

[0020] In a preferred embodiment, the drive motor is a stepper screw motor, and the pull rod is a lead screw.

[0021] In summary, this novel paint film adhesion testing device employs a translation mechanism to automatically move a cross-cutting blade horizontally across the workpiece surface, ensuring consistent depth and cross-sectional area for each scratch by precisely controlling the blade's trajectory and applied force. This improves the accuracy of the test results and significantly enhances their stability and repeatability. Furthermore, automated operation reduces human error, further improving the reliability and consistency of the testing process and ensuring high efficiency and precision in paint film adhesion testing. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the paint film adhesion testing device of this utility model;

[0023] Figure 2 This is an exploded view of the knife holder in the paint film adhesion testing device of this utility model;

[0024] The meanings of the reference numerals in the attached figures are as follows:

[0025] 1. Mounting base; 11. Guide block; 12. First connector; 2. Tool holder; 21. Guide groove; 22. Groove; 23. Recess; 24. Screw hole; 25. Fastener; 26. Washer; 27. Screw; 3. Dividing blade; 4. Counterweight; 5. Drive motor; 51. Motor base; 6. Pull rod; 61. Second connector; 7. Guide rail; 71. Slider; 8. First base plate; 81. First adjusting support rod; 9. Second base plate; 91. Second adjusting support rod. Detailed Implementation

[0026] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0029] like Figure 1-2 The illustrated paint film adhesion testing device includes a mounting base 1, a cross-cutting assembly, and a translation mechanism. The cross-cutting assembly includes a cutter holder 2 and a cross-cutting blade 3 fixed on the cutter holder 2. The cutter holder 2 is movably mounted on the mounting base 1. The translation mechanism includes a drive motor 5 connected to the mounting base 1, a pull rod 6, and a guide assembly. When the drive motor 5 drives the pull rod 6, the pull rod 6 pulls the mounting base 1 to move horizontally on the guide assembly so that the cross-cutting blade 3 scratches the workpiece surface.

[0030] Based on the above structure, the paint film adhesion testing device of this invention employs a translation mechanism to automatically move the cross-cut blade 3 horizontally across the workpiece surface to create scratches. By precisely controlling the movement trajectory and applied force of the cross-cut blade 3, the depth and cross-section of each scratch are ensured to be consistent, thereby improving the accuracy of the test results and significantly enhancing their stability and repeatability. Furthermore, automated operation reduces the interference of human factors on the test results, further improving the reliability and consistency of the testing process and ensuring the high efficiency and accuracy of the paint film adhesion test.

[0031] In this embodiment, a guide block 11 is provided on one side of the mounting base 1, and a guide groove 21 that cooperates with the guide block 11 is provided on the tool holder 2. The tool holder 2 is installed on the mounting base 1 by snap-fitting the guide groove 21 and the guide block 11.

[0032] Specifically, the paint film adhesion testing device of this utility model also includes a fastener 25. The blade holder 2 is also provided with a screw hole 24 that connects to the guide groove 21. When the blade holder 2 is installed on the mounting base 1, it is fixed by fastening the fastener 25 in the screw hole 24. In addition, a shim 26 can be set between the fastener 25 and the blade holder 2 to enhance the fastening effect of the fastener 25, improve the stability of the cross-cutting blade 3 in the movement trajectory and the applied force, thereby ensuring the accuracy of the test results.

[0033] Furthermore, the paint film adhesion testing device of this utility model also includes a counterweight 4, and the top of the knife holder 2 is provided with a recess 23. The counterweight 4 is installed in the recess 23 and fastened with bolts.

[0034] It should be noted that in this embodiment, the counterweight 4 can be replaced with a counterweight 4 of different weights by removing the bolts, thereby providing different test depths for the scribing blade 3 when scratching the workpiece, and meeting different test requirements.

[0035] In this embodiment, a groove 22 is provided at the bottom of the blade holder 2, a portion of the scribbling blade 3 is engaged in the groove 22, and the scribbling blade 3 is fixed to the groove 22 by screws 27.

[0036] Specifically, the bottom of the scribing blade 3 is provided with teeth for scratching the surface of the workpiece.

[0037] More specifically, in this embodiment, the crisscross blade 3 is an eleven-flute blade or a six-flute blade.

[0038] In this embodiment, the other side of the mounting base 1 is provided with a first connector 12, and one end of the pull rod 6 is provided with a second connector 61. The first connector 12 and the second connector 61 are hinged together to change the downward tilt angle of the scribing blade 3, thereby changing the depth of the scribing blade 3 when it scribing the workpiece surface, so as to meet different testing requirements.

[0039] In this embodiment, the guide assembly includes a guide rail 7 and a slider 71 slidably connected to the guide rail 7, and the mounting base 1 is connected to the slider 71.

[0040] Specifically, the paint film adhesion testing device of this utility model also includes a first seat plate 8 disposed at one end of the guide rail 7 and a second seat plate 9 disposed at the other end of the guide rail 7; the bottom of the first seat plate 8 is provided with a first adjusting support rod 81, which can drive the first seat plate 8 to rise and fall when the first adjusting support rod 81 is adjusted; the bottom of the second seat plate 9 is provided with a second adjusting support rod 91, which can drive the second seat plate 9 to rise and fall when the second adjusting support rod 91 is adjusted.

[0041] It should be noted that in this embodiment, there are two first adjusting support rods 81 located at both ends of the first base plate 8, and two second adjusting support rods 91 located at both ends of the second base plate 9. In use, by adjusting the two first adjusting support rods 81 and the two second adjusting support rods 91 respectively, the depth of the scribing blade 3 when scratching the workpiece surface can be adjusted without adding the counterweight 4, thus meeting different testing needs and providing convenience for users when they do not have the tools to install the counterweight 4 on the tool holder 2.

[0042] In this embodiment, the second base plate 9 is also provided with a motor base 51, and the drive motor 5 is fixedly installed on the motor base 51, thereby avoiding the direct impact of the drive motor 5 on the second base plate 9 during operation, which in turn affects the movement trajectory of the scribing blade 3.

[0043] In addition, in this embodiment, the drive motor 5 is a stepper screw motor, and the pull rod 6 is a lead screw.

[0044] In summary, this novel paint film adhesion testing device employs a translation mechanism to automatically move the cross-cut blade 3 horizontally across the workpiece surface to create scratches. By precisely controlling the movement trajectory and applied force of the blade 3, the depth and cross-section of each scratch are ensured to be consistent, thereby improving the accuracy of the test results and significantly enhancing their stability and repeatability. Furthermore, automated operation reduces the interference of human factors on the test results, further improving the reliability and consistency of the testing process and ensuring the high efficiency and accuracy of the paint film adhesion test.

[0045] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to the other component.

[0046] It should be understood that the terms "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] Furthermore, in the description of this utility model, "multiple" and "several" mean two or more, unless otherwise explicitly specified.

[0048] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A paint film adhesion testing device, characterized in that, include: Mounting base; A grading assembly includes a cutter holder and a grading blade fixed on the cutter holder, the cutter holder being movably mounted on the mounting base; The translation mechanism includes a drive motor, a pull rod, and a guide assembly connected to the mounting base; When the drive motor drives the pull rod, the pull rod pulls the mounting base horizontally on the guide assembly so that the scribing blade scribing marks the workpiece surface.

2. The paint film adhesion testing device according to claim 1, characterized in that, A guide block is provided on one side of the mounting base, and a guide groove is provided on the tool holder to cooperate with the guide block. The tool holder is installed on the mounting base by snapping together with the guide block through the guide groove.

3. The paint film adhesion testing device according to claim 2, characterized in that, It also includes fasteners, and the tool holder is provided with a screw hole that communicates with the guide groove. When the tool holder is installed on the mounting base, it is fixed by the fasteners in the screw hole.

4. The paint film adhesion testing device according to claim 3, characterized in that, It also includes a counterweight, and the top of the tool holder has a recess, in which the counterweight is installed and fastened with screws.

5. The paint film adhesion testing device according to claim 1, characterized in that, The bottom of the blade holder has a groove, a portion of the dicing blade is engaged in the groove, and the dicing blade is fixed to the groove by screws.

6. The paint film adhesion testing device according to claim 5, characterized in that, The bottom of the scribing blade has teeth for scratching the surface of the workpiece.

7. The paint film adhesion testing device according to claim 1, characterized in that, The mounting base is provided with a first connector on the other side, and the pull rod is provided with a second connector at one end. The first connector and the second connector are hinged together.

8. The paint film adhesion testing device according to claim 1, characterized in that, The guide assembly includes a guide rail and a slider slidably connected to the guide rail, and the mounting base is connected to the slider.

9. The paint film adhesion testing device according to claim 8, characterized in that, It also includes a first seat plate disposed at one end of the guide rail and a second seat plate disposed at the other end of the guide rail; the bottom of the first seat plate is provided with a first adjusting support rod, which can drive the first seat plate to rise and fall when the first adjusting support rod is adjusted. The second seat plate is provided with a second adjusting support rod at its bottom. When the second adjusting support rod is adjusted, the second seat plate can be raised or lowered.

10. The paint film adhesion testing device according to claim 1, characterized in that, The drive motor is a stepper screw motor, and the pull rod is a lead screw.

Images