A coating adhesion crosshatch test tool

Abstract

This utility model discloses a cross-cut adhesion test tool, comprising a tool holder, a tool support, and several utility knife blades. Several blade holes are formed through the tool support along its width direction, and these holes are parallel to each other and evenly distributed along the width direction of the tool support. Several utility knife blades are respectively inserted into each blade hole. The tool support is slidably mounted on the tool holder, and an adjusting member is provided on the tool holder. Adjusting the adjusting member secures the tool support to the tool holder, fixing the tool support to the tool holder. A rear baffle is provided at one end of the tool holder, and a front baffle is provided at the end of the tool support away from the rear baffle. One end of each utility knife blade abuts against the rear baffle, and the other end of each utility knife blade protrudes from the blade hole and abuts against the front baffle. Several breakage grooves are formed parallel to the length direction of the utility knife blade. The advantage of this utility model is that this cross-cut adhesion test tool can penetrate relatively thick coatings, and when the cutting edge of the tool is worn, the old cutting edge of the utility knife blade can be broken off and the tool can continue to be used, resulting in lower operating costs.

Description

Technical Field

[0001] This utility model relates to the field of coating adhesion testing technology, and in particular to a coating adhesion cross-cut test tool. Background Technology

[0002] To gain a deeper understanding and mastery of the performance characteristics of coating adhesion, thereby providing strong support for improving product quality and manufacturing processes, accurate evaluation of coating adhesion is necessary. Existing methods typically employ the cross-cut adhesion test, which is widely used across various industries. The basic principle of the cross-cut adhesion test is to use a specific tool to create a grid on the coating and observe the peeling of the coating at the edges of the grid to determine the strength of the adhesion. This test method is simple to operate and provides intuitive results, offering an effective means of detecting coating adhesion.

[0003] Existing cutting tools for coating adhesion testing consist of a cutting head and a tool body, with the cutting head and tool body typically being detachably mounted. When the cutting edge of this tool wears down, the entire cutting head needs to be replaced, resulting in relatively high tool usage costs. Furthermore, existing tools are also ineffective at penetrating thick coatings, necessitating improvements. Utility Model Content

[0004] The purpose of this invention is to provide a coating adhesion cross-cutting test tool that can scratch thick coatings and uses low cost when testing the adhesion of coating surfaces.

[0005] This utility model proposes a cross-cut adhesion test tool for coatings, comprising a tool holder, a tool support, and several utility knife blades. Several blade holes are formed through the tool support along its width direction, and these blade holes are parallel to each other and evenly distributed along the width direction of the tool support. Several utility knife blades are respectively inserted into each blade hole. The tool support is slidably mounted on the tool holder, and an adjusting member is provided on the tool holder. Adjusting the adjusting member to press against the tool support fixes the tool support to the tool holder. A rear baffle is provided at one end of the tool holder, and a front baffle is provided at the end of the tool support away from the rear baffle. One end of each utility knife blade abuts against the rear baffle, and the other end of each utility knife blade protrudes from the blade hole and abuts against the front baffle. Several breakage grooves are formed parallel to the length direction of each utility knife blade.

[0006] Preferably, a cut-off groove is formed at one end of the tool holder.

[0007] Preferably, the bottom end of the tool holder is provided with a slider, and a groove is formed on the surface of the tool holder, and the slider is engaged and slidable in the groove.

[0008] Preferably, a limiting groove is formed between the two sides of the slider and the tool holder, so that the vertical cross section of the slider is convex. Limiting plates are fixedly provided on both sides of the groove, and the limiting plates are embedded in the limiting groove.

[0009] Preferably, the adjusting component is configured as a fixing bolt, and a threaded hole is formed through the bottom end of the tool holder. The fixing bolt is threaded into the threaded hole and abuts against the bottom end of the slider.

[0010] Preferably, the front baffle is L-shaped and is fixed to the tool holder by bolt fastening.

[0011] Preferably, a groove is formed on the surface of the rear baffle, and a snap-fit ​​part is formed at one end of each utility knife blade near the rear baffle. The snap-fit ​​part is snapped into the groove, and the snap-fit ​​part and the inner wall of the groove are in contact.

[0012] As can be seen from the above description of this utility model, this utility model has the following beneficial effects:

[0013] 1. In this cross-cut test tool, each utility knife blade is mounted on a tool holder, and the tool holder can be slidably mounted on the tool holder. Each utility knife blade is limited to the space between the front baffle and the rear baffle. When the cutting edge of the utility knife blade is worn, the old cutting edge can be broken off along the breakage groove, so that the utility knife blade can form a new cutting edge. This makes the cross-cut test tool less expensive and has a longer service life.

[0014] 2. A slot is formed on the back baffle, and a locking part is formed at the end of the utility knife blade near the back baffle. After installation, the locking part of the utility knife blade is locked into the slot of the back baffle, and the locking part is in close contact with the inner wall of the slot. Therefore, when using the cross-cut test tool to draw a grid on the coating surface, relative looseness between the utility knife blade and the tool holder can be prevented. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a cross-cut adhesion test tool for a coating according to an embodiment;

[0016] Figure 2 This is an exploded schematic diagram of a cross-cut adhesion test tool for a coating, according to an embodiment.

[0017] Figure 3 This is a front view of a cross-cut adhesion test tool for a coating, as described in Embodiment 1.

[0018] Figure 4 This is a schematic diagram of the tool holder and slider in the embodiment;

[0019] Figure 5 This is a schematic diagram of the tool holder structure in the embodiment;

[0020] Figure 6 This is a schematic diagram of the screw hole and the broken tool groove in the embodiment;

[0021] Figure 7 This is a schematic diagram of the structure of the utility knife blade in the embodiment.

[0022] Reference numerals: 1. Tool holder; 11. Slide groove; 12. Rear baffle; 121. Slot; 13. Screw hole; 14. Limiting plate; 15. Break-off groove; 2. Tool holder; 21. Blade hole; 3. Utility blade; 31. Insertion part; 32. Break-off groove; 4. Slider; 41. Limiting groove; 5. Front baffle; 6. Adjusting component. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution and the beneficial effects of this utility model clearer and more understandable, the following description is provided in conjunction with the appendix. Figure 1-7 The present invention will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and are not intended to limit the present invention.

[0024] Reference Figures 1-4 A cross-cut adhesion test tool for coatings includes a tool holder 1, a tool post 2, and a plurality of utility knife blades 3. A plurality of blade holes 21 are uniformly formed along the width direction of the tool post 2, each blade hole 21 penetrating the tool post 2, and the utility knife blades 3 are inserted into the blade holes 21 of the tool post 2. The tool post 2 is slidably mounted on the tool holder 1, for which a groove 11 is formed on the surface of the tool holder 1. Correspondingly, a slider 4 is formed at the bottom end of the tool post 2, such that the slider 4 at the bottom end of the tool post 2 is engaged within the groove 11 of the tool holder 1.

[0025] Reference Figure 2 , Figure 5 and Figure 6 A rear baffle 12 is provided at one end of the blade holder 1. The slider 4 at the bottom of the blade holder 2 is engaged in the groove 11 of the blade holder 1, moving the blade holder 2 closer to the rear baffle 12. A front baffle 5 is installed at the end of the blade holder 2 away from the rear baffle 12. One end of each utility knife blade 3 passes through the blade hole 21 of the blade holder 2 and abuts against the front baffle 5. The front baffle 5 is L-shaped and is located at the end of the blade holder 2 away from the rear baffle 12 of the blade holder 1. To facilitate the installation and removal of each utility knife blade 3, the front baffle 5 and the blade holder 2 are fixed together with bolts.

[0026] After the slider 4 at the bottom of the blade holder 2 is engaged in the groove 11 of the blade holder 1, the blade holder 2 can slide on the blade holder 1 until the other end of each utility knife blade 3 abuts against the rear baffle 12 on the blade holder 1. An adjusting member 6 is provided on the blade holder 1. By adjusting the adjusting member 6 to abut against the blade holder 2, the blade holder 2 and the blade holder 1 are fixed together. For this purpose, a screw hole 13 is formed through the bottom of the blade holder 1, and the adjusting member 6 is used as a fixing bolt, which is threaded into the screw hole 13. After the blade holder 2 slides on the blade holder 1, the two ends of each utility knife blade 3 abut against the front baffle 5 and the rear baffle 12 respectively. Then, the fixing bolt is tightened so that the end of the fixing bolt abuts against the bottom end of the slider 4. At the same time, the top ends of both sides of the slider 4 abut against the limiting plate 14. This allows the blade holder 2 to maintain a fixed relative position with the blade holder 1.

[0027] Reference Figure 4 and Figure 5 To ensure the tool holder 2 remains stable during its sliding motion on the tool holder 1, limiting grooves 41 are formed between the slider 4 and the tool holder 2 on both sides, making the slider 4 convex in shape. Correspondingly, limiting plates 14 are fixedly installed on both sides of the slide groove 11, maintaining a gap between the two limiting plates 14. When the slider 4 at the bottom of the tool holder 2 slides within the slide groove 11 of the tool holder 1, the limiting plates 14 on the slide groove 11 are engaged with the limiting grooves 41 on the slider 4. This ensures a stable relative position between the tool holder 2 and the tool holder 1, preventing the tool holder 1 from falling off during its sliding motion on the tool holder 2.

[0028] Reference Figure 5 and Figure 7 When using the cross-cut adhesion test tool to test the adhesion of a coating, several utility knife blades 3 protruding from the tool holder 2 are used to draw a grid on the coating surface. The ends of the utility knife blades 3 are set at an angle to facilitate drawing the grid on the coating surface. The strength of the adhesion is judged by observing the peeling of the coating at the edges of the grid. This test method is simple to operate and provides intuitive results, providing an effective means for testing coating adhesion. When using the cross-cut adhesion test tool to draw a grid on the coating surface, in order to prevent the utility knife blades 3 from becoming loose, a locking part 31 is formed at the end of each utility knife blade 3 near the back baffle 12, and a corresponding groove 121 is formed on the surface of the back baffle 12. The locking part 31 at one end of each utility knife blade 3 is locked into the groove 121 of the back baffle 12, so that the locking part 31 of each utility knife blade 3 is in contact with the side wall of the groove 121.

[0029] After repeatedly scratching the coating surface with this cross-cut test tool, the cutting edges of each utility knife blade 3 are prone to wear. To save on the cost of replacing utility knife blades 3, several breakage grooves 32 are formed along the length of each utility knife blade 3. These breakage grooves 32 are evenly distributed along the length of the utility knife blade 3, and each breakage groove 32 is parallel to the end of the utility knife blade 3. Correspondingly, a blade breakage groove 15 is formed on one side of the tool holder 1. When it is necessary to break the cutting edge of the utility knife blade 3, each utility knife blade 3 is removed from the tool holder 2. One end of the cutting edge of each utility knife blade 3 is inserted into the blade breakage groove 15 of the tool holder 1, and the cutting edge is broken along the breakage groove 32 by bending the utility knife blade 3. Each utility knife blade 3 has twelve breakage grooves 32, so that each utility knife blade 3 has thirteen pieces that can be broken and used, eliminating the need for frequent replacement of utility knife blades 3 and making this cross-cut test tool have a lower operating cost.

[0030] The specific implementation principle of this application embodiment is as follows: When the adhesion test tool is used to test the coating surface, the front baffle 5 is fixedly installed on one end of the tool holder 2, and each utility knife blade 3 is inserted into the blade hole 21 of the tool holder 2, so that one end of each utility knife blade 3 protrudes from the blade hole 21 and abuts against the front baffle 5. The slider 4 at the bottom of the tool holder 2 is engaged in the sliding groove 11 of the tool holder 1, and the limiting plate 14 on the tool holder 1 is engaged in the limiting groove 41 above the slider 4. The tool holder 2 is pushed towards the rear baffle 12, so that the tool holder 2 slides on the tool holder 1 until the engaging part 31 on the other end of each utility knife blade 3 on the tool holder 2 is engaged in the engaging groove 121 of the rear baffle 12. Finally, the fixing bolt is threaded into the screw hole 13 of the tool holder 1, so that the end of the fixing bolt abuts against the bottom end of the slider 4, and the slider 4 abuts against the limiting plate 14, thereby keeping the tool holder 2 in a stable position on the tool holder 1.

[0031] The adhesion strength is determined by scribing a grid on the coating using the cross-cut adhesion test tool and observing the peeling of the coating at the grid edges. When the cutting edges of each utility knife 3 show wear, the front baffle 5 is removed from the knife holder 2, and each utility knife 3 is taken out of the blade hole 21 of the knife holder 2. One end of the cutting edge of each utility knife 3 is inserted into the blade breakage groove 15 of the knife holder 1, and the old cutting edge of each utility knife 3 is broken off along the breakage groove 32, thus forming a new cutting edge for each utility knife 3. Finally, each utility knife 3 with its old cutting edge broken off is reinstalled into the blade hole of the knife holder 2, and after the knife holder 2 is slid to a suitable position, the knife holder 2 and the knife holder 1 are fixed again; thus, the adhesion test tool can be used again to test the coating surface. By using this cross-cut adhesion test tool, it can cut through thicker coatings during adhesion testing. Furthermore, when the cutting edge of the cross-cut adhesion test tool becomes worn, it is not necessary to replace all the utility knife blades 3. Simply break off the old cutting edge of each utility knife blade 3 along the breakage groove 32. Thus, each utility knife blade 3 can be reused thirteen times, making the cross-cut adhesion test tool have a lower usage cost.

[0032] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, shall be protected by the present invention.

Claims

1. A cross-cut adhesion test tool for coatings, characterized in that: It includes a knife holder, a knife frame, and several utility knife blades. Several blade holes are formed through the knife frame along its width direction. The blade holes are parallel to each other and evenly distributed along the width direction of the knife frame. The utility knife blades are respectively inserted into each blade hole. The tool holder is slidably mounted on the tool holder, and the tool holder is provided with an adjusting member. Adjusting the adjusting member to press against the tool holder will fix the tool holder and the tool holder in place. One end of the blade holder is provided with a rear baffle, and the end of the blade holder away from the rear baffle is provided with a front baffle. One end of each utility blade abuts against the rear baffle, and the other end of each utility blade passes through the blade hole and abuts against the front baffle. Several breakage grooves are formed parallel to the length direction of the utility blade.

2. The coating adhesion cross-cutting test tool according to claim 1, characterized in that: A tool break groove is formed at one end of the tool holder.

3. The coating adhesion cross-cut adhesion test tool according to claim 1, characterized in that: The bottom end of the tool holder is provided with a slider, and a groove is formed on the surface of the tool holder, and the slider is engaged and slidable in the groove.

4. The coating adhesion cross-cutting test tool according to claim 3, characterized in that: Limiting grooves are formed between the two sides of the slider and the tool holder, so that the vertical cross section of the slider is "convex". Limiting plates are fixedly installed on both sides of the groove, and the limiting plates are embedded in the limiting groove.

5. The coating adhesion cross-cutting test tool according to claim 4, characterized in that: The adjusting component is configured as a fixing bolt, and a threaded hole is formed through the bottom end of the tool holder. The fixing bolt is threaded into the threaded hole and abuts against the bottom end of the slider.

6. The coating adhesion cross-cutting test tool according to claim 1, characterized in that: The front baffle is L-shaped and is fixed to the tool holder by bolt fastening.

7. The coating adhesion cross-cut adhesion test tool according to claim 1, characterized in that: The surface of the rear baffle is provided with a slot, and each utility knife blade is provided with a snap-fit ​​part at one end near the rear baffle. The snap-fit ​​part is snapped into the slot, and the snap-fit ​​part and the inner wall of the slot are in contact.

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