Adhesive force testing device capable of rapidly switching cross-cut knife and adhesive tape

By designing an adhesion testing device that can quickly switch between cross-cut scribing and tape, integrating a drive mechanism and a fixing mechanism, the problem of inconvenient scribing and testing is solved, achieving convenient operation and consistent testing, and enabling the testing of coating adhesion under different pressure conditions.

CN223827530UActive Publication Date: 2026-01-23CHANGZHOU GUANGHUI CHEM
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Patent Information

Application Number
CN202423211259.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-01-23
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

In existing methods for testing coating adhesion, scribing and tape application are inconvenient and difficult to ensure consistency.

Method used

An adhesion testing device was designed that can quickly switch between cross-cut scribing and adhesive tape. It integrates a drive mechanism and a fixing mechanism. The device uses a motor to drive the cross-cut scribing or 3M adhesive tape roller to scribing and stick lines on the paint sample, thus integrating scribing and testing.

Benefits of technology

It enables convenient operation of scribing and testing, ensures consistency between scribing and testing, and can test the adhesion of coatings under different pressure conditions.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223827530U_ABST
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Abstract

The utility model provides an adhesive force testing device capable of rapidly switching a cross-cut knife and an adhesive tape, the testing device comprises a driving mechanism and a fixing mechanism, a scribing assembly is fixed on the driving mechanism, the scribing assembly comprises a fourth motor, a rotating shaft and a blade fixing seat, and the cross-cut knife or a 3M adhesive tape roller is fixed on the blade fixing seat. A coating sample plate is fixed on the fixing mechanism, the driving mechanism drives the cross-cut knife to draw lines on the coating sample plate, the 3M adhesive tape roller is replaced on the knife holder fixing seat, and the driving mechanism drives the 3M adhesive tape roller to roll over the drawn lines. According to the adhesive force testing device capable of rapidly switching the cross-cut knife and the adhesive tape, scribing and adhesive force detection are integrated, operation is convenient, and consistency of scribing and detection is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of coating testing devices, and more specifically, to an adhesion testing device that can quickly switch between cross-cut adhesion tester and adhesive tape. Background Technology

[0002] Coating adhesion is a crucial indicator of surface coating quality. Currently, adhesion testing methods generally employ three methods: the cross-cut test, the grid test, and the pull-off test, with the cross-cut test being the most commonly used. Coating adhesion is typically classified into six levels, from level 0 to level 5, with adhesion decreasing sequentially. Level 5 is the worst, and the coating is most prone to peeling. The cross-cut test method for detecting coating surface adhesion is as follows: First, a cross-cut grid is etched onto the coating sample using a cross-cutting tool; then, test tape is applied over the entire grid and peeled off at a minimal angle; finally, the area of ​​peeling is visually assessed, and the coating adhesion level is determined based on experience. The commonly used cross-cut test involves two separate mechanisms for grid marking and tape application, which is inconvenient to operate and makes it difficult to ensure consistency between the marking and the test results.

[0003] The above-mentioned problems urgently need to be solved, so this utility model provides an adhesion testing device that can quickly switch between a cross-cut adhesion tester and adhesive tape. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an adhesion testing device that can quickly switch between a cross-cut scribing tool and adhesive tape, integrating the scribing and tape bonding, which is easy to operate and ensures the consistency between scribing and testing.

[0005] The technical solution adopted by this utility model to solve its technical problem is: to provide an adhesion testing device that can quickly switch between a cross-cut adhesion tester and adhesive tape. The testing device includes a driving mechanism and a fixing mechanism. The scribing assembly is fixed on the driving mechanism. The scribing assembly includes a fourth motor, a rotating shaft, and a blade fixing seat. A cross-cut adhesion tester or a 3M adhesive tape roller is installed in the blade fixing seat. A paint sample is fixed on the fixing mechanism. First, the cross-cut adhesion tester is installed on the blade fixing seat. The driving mechanism drives the scribing assembly to scribble lines on the paint sample. Then, the 3M adhesive tape roller is replaced on the blade fixing seat. The driving mechanism drives the 3M adhesive tape roller to roll over the scribing position on the paint sample.

[0006] Preferably, the driving mechanism includes a horizontal driving component, a vertical driving component, a vertical driving component, and the marking component. The fixing mechanism is fixed to the vertical driving component and includes a rotating handle, a fixing screw, a fixing base, and a clamp. The paint sample is fixed on the fixing base. The cross-cutting tool is mounted on the blade fixing seat, and the paint sample with paint applied is mounted on the fixing base. Rotating the rotating handle causes the clamp to hold the paint sample on the fixing base. The vertical driving component drives the paint sample to move below the cross-cutting tool, and the vertical driving component drives the cross-cutting tool to press against the surface of the paint sample. The vertical drive assembly drives the paint sample to move, the cross-cutting tool scribing lines on the paint sample, the vertical drive assembly drives the cross-cutting tool to rise, the fourth motor drives the cross-cutting tool to rotate, the vertical drive assembly again drives the cross-cutting tool to press against the surface of the paint sample, the horizontal drive assembly controls the cross-cutting tool to scribing lines on the surface of the paint sample, the cross-cutting tool is removed from the blade holder, the 3M tape roller is installed on the blade holder, the vertical drive assembly drives the 3M tape roller to press against the surface of the paint sample, and the horizontal drive assembly drives the 3M tape roller to roll on the paint sample.

[0007] Preferably, the testing device further includes a support and a movable base. The support includes a first support, a second support, and a third support. The first support is fixed on the third support. The movable base includes a horizontal movable base, a vertical movable base, and a scribing component fixing base. The vertical movable base is fixed on the horizontal movable base, and the scribing component fixing base is fixed on the vertical movable base. The horizontal movable base is connected to the horizontal driving component, and the vertical movable base is connected to the vertical driving component. The scribing component is fixed on the scribing component fixing base.

[0008] Preferably, the lateral drive assembly includes a first motor, a lateral lead screw connected to the output shaft of the first motor, and first fixed rods disposed on both sides of the lateral lead screw. The two ends of the first fixed rods are fixed in the first bracket. A first rotating nut is threaded onto the lateral lead screw. The first rotating nut is fixed on the lateral moving seat. The first motor drives the lateral lead screw to rotate, the first rotating nut moves, and the moving seat moves laterally following the first rotating nut.

[0009] Preferably, the longitudinal drive assembly includes a second motor, a longitudinal lead screw connected to the output shaft of the second motor, and second fixing rods disposed on both sides of the longitudinal lead screw. The second fixing rods are fixed on the second bracket. A second rotating nut is threaded onto the longitudinal lead screw. The second rotating nut is fixed on the fixed base. The second motor drives the longitudinal lead screw to rotate, and the second rotating nut moves. The fixing mechanism moves longitudinally following the second rotating nut.

[0010] Preferably, the vertical drive assembly includes a third motor, a vertical lead screw connected to the output shaft of the third motor, and third fixed rods disposed on both sides of the vertical lead screw. A third rotating nut is threaded onto the vertical lead screw, and the third rotating nut is fixed on the vertical moving seat. The third motor drives the vertical lead screw to rotate, the third rotating nut moves, and the scribing assembly moves vertically following the third rotating nut.

[0011] Preferably, the cross-cutting cutter is provided with a fixing member, the 3M tape roller is provided with the fixing member, the cross-cutting cutter is fixed to the blade fixing seat by the fixing member, and the 3M tape roller is fixed to the blade fixing seat by the fixing member.

[0012] Preferably, the clamp is provided with a fixed handle on the side, a limiting block is provided on the inner wall of the clamp near the fixed handle, and a screw fixing seat is provided at the bottom of the clamp. When the rotating handle is rotated, the fixed screw rotates, the screw fixing seat moves, and the clamp moves with the screw fixing seat. After clamping the paint sample, the fixed handle is rotated, and the fixed handle abuts against the limiting block to fix the clamp.

[0013] The beneficial effects of this utility model are:

[0014] 1. The scribing and adhesion testing are integrated into one unit, which is convenient to operate and ensures the consistency between scribing and testing.

[0015] 2. The horizontal drive component drives the scribing component to move horizontally, the vertical drive component drives the paint sample to move vertically, and the vertical drive component drives the scribing component to move vertically, so that the cross-cutting tool can scribble lines on the paint sample. The vertical drive component drives the scribing component to move downwards by different distances, which can test the adhesion of the paint on the paint sample under different pressure conditions. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] In the picture: Figure 1 This is a schematic diagram of the adhesion testing device of the present invention, which can quickly switch between cross-cut adhesion tester and tape.

[0018] Figure 2 for Figure 1 Another structural diagram of an adhesion testing device that can quickly switch between cross-cut adhesion tester and tape;

[0019] Figure 3 for Figure 1 Exploded view of the fixed mechanism.

[0020] 1. Testing equipment;

[0021] 10. Drive mechanism; 11. Lateral drive assembly; 111. First motor; 112. Lateral lead screw; 1121. First rotating nut; 113. First fixed rod; 12. Longitudinal drive assembly; 121. Second motor; 122. Longitudinal lead screw; 1221. Second rotating nut; 123. Second fixed rod; 13. Vertical drive assembly; 131. Third motor; 132. Vertical lead screw; 1321. Third rotating nut; 133. Third fixed rod; 14. Marking assembly; 141. Fourth motor; 142. Rotating shaft; 143. Blade holder; 144. Cross-cut marking blade; 145. 3M tape roller; 146. Fixing component;

[0022] 20. Fixing mechanism; 21. Rotating handle; 22. Fixing screw; 23. Fixing base; 24. Clamp; 241. Fixing handle; 242. Limiting block; 243. Screw fixing seat; 25. Paint sample;

[0023] 30. Support; 31. First support; 32. Second support; 33. Third support;

[0024] 40. Movable seat; 41. Horizontal movable seat; 42. Vertical movable seat; 43. Marking component fixing seat. Detailed Implementation

[0025] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will now be described in detail with reference to the accompanying drawings. This drawing is a simplified schematic diagram, illustrating only the basic aspects of the present utility model, and therefore only shows the components relevant to the present utility model. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0026] like Figure 1As shown, an adhesion testing device that can quickly switch between a cross-cut adhesion tester and adhesive tape is disclosed. The testing device 1 includes a drive mechanism 10 and a fixing mechanism 20. A scribing assembly 14 is fixed on the drive mechanism 10. The scribing assembly 14 includes a fourth motor 141, a rotating shaft 142, and a blade holder 143. A cross-cut adhesion tester 144 or a 3M adhesive tape roller 145 is installed in the blade holder 143. A paint sample 25 is fixed on the fixing mechanism 20. First, the cross-cut adhesion tester 144 is installed on the blade holder 143. The drive mechanism 10 drives the scribing assembly 14 to scribble lines on the paint sample 25. Then, the 3M adhesive tape roller 145 is replaced on the blade holder 143. The drive mechanism 10 drives the 3M adhesive tape roller 145 to roll over the scribing position on the paint sample 25.

[0027] The drive mechanism 10 includes a transverse drive assembly 11, a longitudinal drive assembly 12, a vertical drive assembly 13, and a marking assembly 14. The fixing mechanism 20 is fixed to the longitudinal drive assembly 12, such as... Figure 3 As shown, the fixing mechanism 20 includes a rotating handle 21, a fixing screw 22, a fixing base 23, and a clamp 24. A paint sample 25 is fixed on the fixing base 23. A cross-cutting tool 144 is installed on a blade fixing seat 143. The paint sample 25 with paint applied is installed on the fixing base 23. Rotating the rotating handle 21 causes the clamp 24 to hold the paint sample 25 on the fixing base 23. The longitudinal drive assembly 12 drives the paint sample 25 to move below the cross-cutting tool 144. The vertical drive assembly 13 drives the cross-cutting tool 144 to press against the surface of the paint sample 25. The longitudinal drive assembly 12 drives the paint sample 25 to move, and the cross-cutting tool 144... Lines are drawn on the paint sample 25. The vertical drive assembly 13 drives the cross-cutting knife 144 to rise, and the fourth motor 141 drives the cross-cutting knife 144 to rotate. The vertical drive assembly 13 drives the cross-cutting knife 144 to press against the surface of the paint sample 25 again. The horizontal drive assembly 11 controls the cross-cutting knife 144 to draw lines on the surface of the paint sample 25. The cross-cutting knife 144 is removed from the blade holder 143, and the 3M tape roller 145 is installed on the blade holder 143. The vertical drive assembly 13 drives the 3M tape roller 145 to press against the surface of the paint sample 25, and the horizontal drive assembly 11 drives the 3M tape roller 145 to roll on the paint sample 25.

[0028] In this embodiment, specifically: a fixed handle 241 is provided on the side of the clamp 24, a limiting block 242 is provided on the inner wall of the clamp 24 near the fixed handle 241, and a screw fixing seat 243 is provided at the bottom of the clamp 24. When the rotating handle 21 is rotated, the fixed screw 22 rotates, the screw fixing seat 243 moves, and the clamp 24 moves with the screw fixing seat 243. After clamping the paint sample 25, the fixed handle 241 is rotated, and the fixed handle 241 abuts against the limiting block 242 to fix the clamp 24.

[0029] The testing device 1 also includes a support 30 and a movable seat 40. The support 30 includes a first support 31, a second support 32, and a third support 33. The first support 31 is fixed on the third support 33. The movable seat 40 includes a horizontal movable seat 41, a vertical movable seat 42, and a scribing component fixing seat 43. The vertical movable seat 42 is fixed on the horizontal movable seat 41, and the scribing component fixing seat 43 is fixed on the vertical movable seat 42. The horizontal movable seat 41 is connected to the horizontal drive component 11, and the vertical movable seat 42 is connected to the vertical drive component 13. The scribing component fixing seat 43 is fixed with the scribing component 14.

[0030] like Figure 1-2 As shown, the lateral drive assembly 11 includes a first motor 111, a lateral lead screw 112 connected to the output shaft of the first motor 111, and first fixed rods 113 disposed on both sides of the lateral lead screw 112. The two ends of the first fixed rods 113 are fixed in the first bracket 31. A first rotating nut 1121 is threaded onto the lateral lead screw 112. The first rotating nut 1121 is fixed on the lateral moving seat 41. The first motor 111 drives the lateral lead screw 112 to rotate, the first rotating nut 1121 moves, and the moving seat 40 moves laterally following the first rotating nut 1121.

[0031] The longitudinal drive assembly 12 includes a second motor 121, a longitudinal lead screw 122 connected to the output shaft of the second motor 121, and second fixing rods 123 disposed on both sides of the longitudinal lead screw 122. The second fixing rods 123 are fixed on the second bracket 32. A second rotating nut 1221 is threaded onto the longitudinal lead screw 122. The second rotating nut 1221 is fixed on the fixed base 23. The second motor 121 drives the longitudinal lead screw 122 to rotate, and the second rotating nut 1221 moves. The fixing mechanism 20 moves longitudinally with the second rotating nut 1221.

[0032] The vertical drive assembly 13 includes a third motor 131, a vertical lead screw 132 connected to the output shaft of the third motor 131, and third fixed rods 133 on both sides of the vertical lead screw 132. A third rotating nut 1321 is threaded onto the vertical lead screw 132. The third rotating nut 1321 is fixed on the vertical moving seat 42. The third motor 131 drives the vertical lead screw 132 to rotate, and the third rotating nut 1321 moves. The scribing assembly 14 moves vertically following the third rotating nut 1321.

[0033] In this embodiment, specifically: the cross-cut blade 144 is annular, and a fixing member 146 is provided in the cross-cut blade 144. The fixing member 146 passes through the center of the cross-cut blade 144 and fixes the cross-cut blade 144 to the blade fixing seat 143. The 3M tape roller 145 is annular, and a fixing member 146 is provided in the 3M tape roller 145. The fixing member 146 passes through the center of the 3M tape roller 145 and fixes the 3M tape roller 145 to the blade fixing seat 143.

[0034] The working process of this utility model is as follows: An adhesion testing device that can quickly switch between a cross-cut adhesion tester and adhesive tape.

[0035] After the paint is applied to the paint sample 25, manually rotate the rotating handle 21 to fix the paint sample 25 in the fixed base 23 and clamp 24. The third motor 131 drives the cross-cutting tool 144 to press against the paint sample 25. The second motor 121 drives the fixing mechanism 20 to move longitudinally, and the cross-cutting tool 144 draws longitudinal lines on the paint sample 25. The third motor 131 drives the cross-cutting tool 144 to leave the paint sample 25. The fourth motor 141 drives the cross-cutting tool 144 to rotate. Motor 131 drives the cross-cutting tool 144 to press against the paint sample 25. Motor 111 drives the cross-cutting tool 144 to draw horizontal lines on the paint sample 25. Motor 131 drives the cross-cutting tool 144 to leave the paint sample 25. Then, the cross-cutting tool 144 is removed from the blade holder 143. 3M tape roller 145 is replaced on the blade holder 143. Motor 111 drives the 3M tape roller 145 to roll along the drawn lines on the paint sample 25 to test the area of ​​paint peeling.

[0036] The beneficial effects of this utility model's adhesion testing device, which can quickly switch between a cross-cut adhesion tester and adhesive tape, are as follows:

[0037] 1. The testing device 1 of this utility model integrates scribing and adhesion detection into one unit, which is easy to operate and ensures the consistency between scribing and detection.

[0038] 2. The horizontal drive component 11 drives the scribing component 14 to move horizontally, the vertical drive component 12 drives the paint sample 25 to move vertically, and the vertical drive component 13 drives the scribing component 14 to move vertically, so that the cross-cutting knife 144 can scribble on the paint sample 25. The vertical drive component 13 drives the scribing component 14 to move downwards by different distances, which can test the adhesion of the paint on the paint sample 25 under different pressure levels.

[0039] 3. The fixing mechanism 20 fixes the paint sample 25 between the fixing base 23 and the clamp 24, making the paint sample 25 more stable when drawing lines and less likely to be drawn crooked.

[0040] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0041] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0042] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An adhesion testing device capable of quickly switching between a cross-cut adhesion tester and adhesive tape, characterized in that: The testing device (1) includes a driving mechanism (10) and a fixing mechanism (20). A scribing assembly (14) is fixed on the driving mechanism (10). The scribing assembly (14) includes a fourth motor (141), a rotating shaft (142), and a blade holder (143). A cross-cutting tool (144) or a 3M tape roller (145) is installed in the blade holder (143). A paint sample (25) is fixed on the fixing mechanism (20). First, the cross-cutting tool (144) is installed on the blade holder (143). The driving mechanism (10) drives the scribing assembly (14) to scribble on the paint sample (25). Then, the 3M tape roller (145) is replaced on the blade holder (143). The driving mechanism (10) drives the 3M tape roller (145) to roll over the scribing position on the paint sample (25).

2. The adhesion testing device for quickly switching between cross-cut adhesion tester and adhesive tape according to claim 1, characterized in that: The driving mechanism (10) includes a horizontal driving component (11), a vertical driving component (12), a vertical driving component (13), and the marking component (14). The fixing mechanism (20) is fixed on the vertical driving component (12). The fixing mechanism (20) includes a rotating handle (21), a fixing screw (22), a fixing base (23), and a clamp (24). The paint sample (25) is fixed on the fixing base (23), and the cross-cutting tool (144) is installed on it. On the blade holder (143), a paint sample (25) coated with paint is mounted on the fixed base (23). Rotating the rotating handle (21) causes the clamp (24) to hold the paint sample (25) on the fixed base (23). The longitudinal drive assembly (12) drives the paint sample (25) to move below the cross-cutting cutter (144), and the vertical drive assembly (13) drives the cross-cutting cutter (144) to press against the paint sample (25). On the surface, the longitudinal drive assembly (12) drives the paint sample (25) to move, the cross-cutting tool (144) draws lines on the paint sample (25), the vertical drive assembly (13) drives the cross-cutting tool (144) to rise, the fourth motor (141) drives the cross-cutting tool (144) to rotate, the vertical drive assembly (13) again drives the cross-cutting tool (144) to press against the surface of the paint sample (25), and the horizontal drive assembly (11) controls the movement of the paint sample. The cross-cutting tool (144) is used to score lines on the surface of the paint sample (25). The cross-cutting tool (144) is removed from the blade holder (143). The 3M tape roller (145) is installed on the blade holder (143). The vertical drive assembly (13) drives the 3M tape roller (145) to press against the surface of the paint sample (25). The horizontal drive assembly (11) drives the 3M tape roller (145) to roll on the paint sample (25).

3. The adhesion testing device for quickly switching between a cross-cut adhesion tester and adhesive tape according to claim 2, characterized in that: The testing device (1) further includes a bracket (30) and a movable seat (40). The bracket (30) includes a first bracket (31), a second bracket (32), and a third bracket (33). The first bracket (31) is fixed on the third bracket (33). The movable seat (40) includes a horizontal movable seat (41), a vertical movable seat (42), and a marking component fixing seat (43). The vertical movable seat (42) is fixed on the horizontal movable seat (41), and the marking component fixing seat (43) is fixed on the vertical movable seat (42). The horizontal movable seat (41) is connected to the horizontal driving component (11), and the vertical movable seat (42) is connected to the vertical driving component (13). The marking component fixing seat (43) fixes the marking component (14).

4. The adhesion testing device for quickly switching between a cross-cut adhesion tester and adhesive tape according to claim 3, characterized in that: The lateral drive assembly (11) includes a first motor (111), a lateral lead screw (112) connected to the output shaft of the first motor (111), and first fixing rods (113) disposed on both sides of the lateral lead screw (112). The two ends of the first fixing rods (113) are fixed in the first bracket (31). A first rotating nut (1121) is threaded onto the lateral lead screw (112). The first rotating nut (1121) is fixed on the lateral moving seat (41). The first motor (111) drives the lateral lead screw (112) to rotate, and the first rotating nut (1121) moves. The moving seat (40) moves laterally following the first rotating nut (1121).

5. The adhesion testing device for quickly switching between a cross-cut adhesion tester and adhesive tape according to claim 3, characterized in that: The longitudinal drive assembly (12) includes a second motor (121), a longitudinal lead screw (122) connected to the output shaft of the second motor (121), and second fixing rods (123) disposed on both sides of the longitudinal lead screw (122). The second fixing rods (123) are fixed on the second bracket (32). A second rotating nut (1221) is threaded onto the longitudinal lead screw (122). The second rotating nut (1221) is fixed on the fixed base (23). The second motor (121) drives the longitudinal lead screw (122) to rotate, and the second rotating nut (1221) moves. The fixing mechanism (20) moves longitudinally following the second rotating nut (1221).

6. The adhesion testing device for quickly switching between a cross-cut adhesion tester and adhesive tape according to claim 3, characterized in that: The vertical drive assembly (13) includes a third motor (131), a vertical lead screw (132) connected to the output shaft of the third motor (131), and third fixed rods (133) on both sides of the vertical lead screw (132). A third rotating nut (1321) is threaded onto the vertical lead screw (132). The third rotating nut (1321) is fixed on the vertical moving seat (42). The third motor (131) drives the vertical lead screw (132) to rotate, and the third rotating nut (1321) moves. The scribing assembly (14) moves vertically following the third rotating nut (1321).

7. The adhesion testing device for quickly switching between a cross-cut adhesion tester and adhesive tape according to claim 1, characterized in that: The cross-cutting cutter (144) is provided with a fixing member (146), and the 3M tape roller (145) is provided with the fixing member (146). The cross-cutting cutter (144) is fixed to the blade holder (143) by the fixing member (146), and the 3M tape roller (145) is fixed to the blade holder (143) by the fixing member (146).

8. The adhesion testing device for quickly switching between cross-cut adhesion tester and adhesive tape according to claim 4, characterized in that: The clamp (24) is provided with a fixed handle (241) on its side. The clamp (24) is provided with a limiting block (242) near the inner wall of the fixed handle (241). The clamp (24) is provided with a screw fixing seat (243) at its bottom. When the rotating handle (21) is rotated, the fixed screw (22) rotates and the screw fixing seat (243) moves. The clamp (24) moves with the screw fixing seat (243). After clamping the paint sample (25), the fixed handle (241) is rotated and the fixed handle (241) abuts against the limiting block (242) to fix the clamp (24).