Adhesive force testing device for UV roller coating scratch-resistant finish paint

Abstract

The utility model provides an adhesive force testing device for UV (ultraviolet) roller coating scratch-resistant finish paint, which belongs to the technical field of finish paint testing and comprises a testing mechanism which comprises a base, two supporting columns fixedly mounted at the top of the base, a metal plate placed on the supporting columns, an air cylinder arranged above the base and a testing spindle used for testing the scratch-resistant finish paint on the surface of the metal plate; and the bubble eliminating mechanism comprises a bubble eliminating part for eliminating bubbles of glue at the bonding part of the test spindle and the metal plate, and a positioning part for keeping the central axes of the test spindle and the air cylinder on the same vertical plane. According to the utility model, the bubble eliminating part is used for eliminating glue bubbles at the bonding part of the test spindle and the metal plate, so that the problem of unstable bonding caused by bubbles in the traditional drawing type test is solved, and the accuracy of the adhesive force test is improved; the positioning part is used for ensuring that the central axes of the cylinder and the test spindle are located on the same vertical plane and preventing the drawing force direction from deviating to influence the test result.

Description

Technical Field

[0001] This utility model belongs to the field of topcoat testing technology, specifically relating to an adhesion testing device for UV roller-coated scratch-resistant topcoat. Background Technology

[0002] UV roller-coated scratch-resistant topcoat is a high-performance coating cured using ultraviolet (UV) curing technology. Applied via roller coating, it offers excellent abrasion resistance, scratch resistance, and chemical resistance. It cures quickly, is environmentally friendly with low VOCs, and is widely used on wood, metal, and plastic substrates. To ensure coating quality, rigorous adhesion tests, such as cross-cut adhesion or pull-out tests, are required to assess the bond strength between the coating and the substrate. Typically, a grade 0 or ≥2 MPa (pull-out strength) is required to ensure long-term adhesion without peeling.

[0003] After applying a UV roller coating of scratch-resistant topcoat to the surface of a metal plate, the coating performance needs to be evaluated through a pull-out adhesion test. However, in actual testing, bubbles are easily generated at the bonding point between the spindle and the metal plate in traditional pull-out testing devices, resulting in unstable adhesion and affecting the accuracy of the test results. Utility Model Content

[0004] The purpose of this invention is to provide an adhesion testing device for UV roller-coated scratch-resistant topcoat, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adhesion testing device for UV roller-coated scratch-resistant topcoat includes,

[0007] The testing mechanism includes a base, two support columns fixedly installed on the top of the base, a metal plate placed on the support columns, a cylinder set above the base, a test spindle for testing the scratch-resistant paint on the surface of the metal plate, and a connecting plate connecting the test spindle and the output end of the cylinder.

[0008] The bubble removal mechanism includes a bubble removal component for removing air bubbles from the adhesive at the joint between the test spindle and the metal plate, and a positioning component for keeping the test spindle and the cylinder axis on the same vertical plane.

[0009] As a preferred embodiment of this utility model, the bubble elimination component includes a miniature vacuum pump fixedly installed on the top of the base, a flexible tube connected to the output end of the miniature vacuum pump, and a sealing cover sleeved on the surface of the test spindle for sealing the connection between the metal plate and the test spindle.

[0010] As a preferred embodiment of this utility model, the contact surface between the sealing cover and the metal plate is provided with an annular groove, and a sealing ring for sealing the inside of the sealing cover is provided inside the groove.

[0011] As a preferred embodiment of this utility model, a horizontal plate is fixedly installed between the two support columns, and a movable guide rail is fixedly installed on one side of the horizontal plate. A movable block that works in conjunction with the movable guide rail is fixedly installed on the surface of the sealing cover.

[0012] In a preferred embodiment of this utility model, a magnetic block is provided on the inner side of the moving guide rail, and the magnetic block is used to attract the moving block.

[0013] As a preferred embodiment of this utility model, the positioning component includes a mounting rail fixedly installed on one side of the horizontal plate, and two positioning rods symmetrically fixedly installed on the surface of the sealing cover for limiting the cylinder position.

[0014] In a preferred embodiment of this utility model, the bottom of the positioning rod is inclined toward the surface of the cylinder, and the surface of the positioning rod is in close contact with the surface of the cylinder.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the bubble elimination component is used to eliminate glue bubbles at the bonding point between the test spindle and the metal plate, which solves the problem of unstable bonding caused by bubbles in the traditional pull-out test, thereby improving the accuracy of the adhesion test; the positioning component is used to ensure that the central axis of the cylinder and the test spindle are located on the same vertical plane, preventing deviation in the direction of the pull-out force from affecting the test results. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the bubble elimination component of this utility model;

[0019] Figure 3 This is a schematic diagram of the movable guide rail structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the positioning component structure of this utility model.

[0021] In the diagram: 100, testing mechanism; 110, base; 120, support column; 130, metal plate; 140, cylinder; 150, test spindle; 160, connecting plate; 200, bubble elimination mechanism; 210, bubble elimination component; 211, miniature vacuum pump; 212, hose; 213, sealing cover; 214, sealing ring; 215, moving guide rail; 216, moving block; 217, magnetic block; 220, positioning component; 221, mounting rail; 222, positioning rod. Detailed Implementation

[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0025] Example

[0026] Reference Figure 1-4 This embodiment of the present invention provides an adhesion testing device for UV roller-coated scratch-resistant topcoat, comprising:

[0027] The testing mechanism 100 includes a base 110, two support columns 120 fixedly installed on the top of the base 110, a metal plate 130 placed on the support columns 120, a cylinder 140 set above the base 110, a test spindle 150 for testing the scratch-resistant paint on the surface of the metal plate 130, and a connecting plate 160 connecting the test spindle 150 and the output end of the cylinder 140.

[0028] The bubble removal mechanism 200 includes a bubble removal component 210 for removing air bubbles from the adhesive at the joint between the test spindle 150 and the metal plate 130, and a positioning component 220 for keeping the central axes of the test spindle 150 and the cylinder 140 on the same vertical plane.

[0029] Among them, the bubble elimination component 210 is used to eliminate glue bubbles at the bonding point between the test spindle 150 and the metal plate 130, which solves the problem of unstable bonding caused by bubbles in the traditional pull-out test, thereby improving the accuracy of the adhesion test; the positioning component 220 is used to ensure that the central axis of the cylinder 140 and the test spindle 150 are located on the same vertical plane, preventing deviation in the direction of the pull-out force from affecting the test results.

[0030] Specifically, the bubble elimination component 210 includes a miniature vacuum pump 211 fixedly installed on the top of the base 110, a hose 212 connected to the output end of the miniature vacuum pump 211, and a sealing cover 213 sleeved on the surface of the test spindle 150 and used to seal the connection between the metal plate 130 and the test spindle 150.

[0031] Furthermore, an annular groove is provided on the contact surface between the sealing cover 213 and the metal plate 130, and a sealing ring 214 for sealing the inside of the sealing cover 213 is provided inside the groove.

[0032] The sealing cover 213 and the test spindle 150 are provided with a sealing sleeve to increase the sealing between the sealing cover 213 and the test spindle 150, and the sealing ring 214 is used to increase the sealing between the sealing cover 213 and the metal plate 130.

[0033] Preferably, a horizontal plate is fixedly installed between the two support columns 120, and a movable guide rail 215 is fixedly installed on one side of the horizontal plate. A movable block 216 that works with the movable guide rail 215 is fixedly installed on the surface of the sealing cover 213.

[0034] The movable guide rail 215 and the movable block 216 are used to limit the movement of the sealing cover 213, preventing the sealing cover 213 from shifting and causing it to not fit tightly with the metal plate 130, thus affecting the airtightness of the sealing cover 213.

[0035] Furthermore, a magnetic block 217 is provided on the inner side of the moving guide rail 215, which is used to attract the moving block 216.

[0036] The movable block 216 is made of magnetic metal material. When one side of the sealing cover 213 comes into contact with the metal plate 130, the movable block 216 moves to the magnetic block 217, and the magnetic block 217 attracts the movable block 216, so that one side of the sealing cover 213 is tightly attached to the surface of the metal plate 130.

[0037] Specifically, the positioning component 220 includes a mounting rail 221 fixedly installed on one side of the horizontal plate, and two positioning rods 222 symmetrically fixedly installed on the surface of the sealing cover 213 for limiting the position of the cylinder 140.

[0038] The mounting rail 221 is used to adjust the position of the cylinder 140. The cylinder 140 is limited by the two positioning rods 222, so that the central axis of the cylinder 140 and the test spindle 150 are on the same vertical plane, preventing the direction of the pulling force from deviating, which would cause shear force during the pulling process and interfere with the test accuracy.

[0039] Furthermore, the bottom of the positioning rod 222 is inclined toward the surface of the cylinder 140, and the surface of the positioning rod 222 is in close contact with the surface of the cylinder 140.

[0040] The cylinder 140 is clamped and limited by the elasticity of the positioning rod 222, so that the cylinder 140 is located directly below the test spindle 150.

[0041] When using the metal plate 130, after the surface of the metal plate 130 is coated with UV roller, it is necessary to test the adhesion of the scratch-resistant topcoat on the surface. The metal plate 130 should be placed in the placement groove at the top of the support column 120.

[0042] The test spindle 150 is moved so that its end is attached to the surface of the metal plate 130. Then, AB glue is applied to the contact surface between the metal plate 130 and the test spindle 150. Before the glue cures, the sealing cover 213 is moved to be attached to the metal plate 130. The sealing ring 214 is in close contact with the surface of the metal plate 130. The magnetic block 217 attracts the moving block 216. The micro vacuum pump 211 is started. Under the action of the micro vacuum pump 211, the air inside the sealing cover 213 is extracted through the hose 212, so that the inside of the sealing cover 213 is close to a vacuum. Under the action of air pressure, the air bubbles in the AB glue are expelled, which improves the stability of the test spindle 150 bonded to the surface of the metal plate 130.

[0043] When the sealing cover 213 moves, it drives the two positioning rods 222 to move. The positioning rods 222 limit the cylinder 140 to ensure that the central axis of the cylinder 140 and the test spindle 150 are on the same vertical plane.

[0044] In summary, the bubble-eliminating component 210 is used to eliminate adhesive bubbles at the bonding point between the test spindle 150 and the metal plate 130, solving the problem of unstable bonding caused by bubbles in traditional pull-out tests, thereby improving the accuracy of adhesion testing; the positioning component 220 is used to ensure that the central axis of the cylinder 140 and the test spindle 150 are located on the same vertical plane, preventing deviations in the direction of the pull-out force from affecting the test results.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for testing the adhesion of a UV roll-coated scratch-resistant topcoat, characterized in that: include, The testing mechanism (100) includes a base (110), two support columns (120) fixedly installed on the top of the base (110), a metal plate (130) placed on the support columns (120), a cylinder (140) set above the base (110), a test spindle (150) for testing the scratch-resistant paint on the surface of the metal plate (130), and a connecting plate (160) connecting the test spindle (150) and the output end of the cylinder (140); The bubble removal mechanism (200) includes a bubble removal component (210) for removing air bubbles from the adhesive at the joint between the test spindle (150) and the metal plate (130), and a positioning component (220) for keeping the central axis of the test spindle (150) and the cylinder (140) on the same vertical plane.

2. The adhesion test device for UV roll-coated scratch-resistant topcoat according to claim 1, characterized in that: The bubble elimination component (210) includes a miniature vacuum pump (211) fixedly installed on the top of the base (110), a hose (212) connected to the output end of the miniature vacuum pump (211), and a sealing cover (213) sleeved on the surface of the test spindle (150) and used to seal the connection between the metal plate (130) and the test spindle (150).

3. The adhesion test device for UV roll-coated scratch-resistant topcoat according to claim 2, wherein: The contact surface between the sealing cover (213) and the metal plate (130) is provided with an annular groove, and a sealing ring (214) for sealing the inside of the sealing cover (213) is provided inside the groove.

4. The adhesion test device for UV roll-coated scratch-resistant topcoat according to claim 3, wherein: A horizontal plate is fixedly installed between the two support columns (120), and a movable guide rail (215) is fixedly installed on one side of the horizontal plate. A movable block (216) for use with the movable guide rail (215) is fixedly installed on the surface of the sealing cover (213).

5. The adhesion test device for UV roll-coated scratch-resistant topcoat according to claim 4, wherein: A magnetic block (217) is provided on the inner side of the moving guide rail (215), and the magnetic block (217) is used to attract the moving block (216).

6. The adhesion test device for UV roll-coated scratch-resistant topcoat according to claim 5, wherein: The positioning component (220) includes a mounting rail (221) fixedly installed on one side of the horizontal plate, and two positioning rods (222) symmetrically fixedly installed on the surface of the sealing cover (213) for limiting the cylinder (140).

7. The adhesion test device for UV roll-coated scratch-resistant topcoat according to claim 6, wherein: The bottom of the positioning rod (222) is inclined toward the surface of the cylinder (140), and the surface of the positioning rod (222) is in close contact with the surface of the cylinder (140).

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