A paint scrub resistance tester with self-compensating bristle wear function

Abstract

This application relates to a paint washability testing instrument with self-compensating brush wear function, belonging to the technical field of paint washability testing equipment. It includes an instrument body, with a capacitive distance sensor fixedly mounted on the upper surface of the instrument body, and a shelf fixedly mounted on the inner sidewall of the instrument body. This application, by setting up components such as a capacitive distance sensor, a first threaded rod, an electromagnetic block, and a second threaded rod, allows the brush to be rotated after a certain number of uses via a second motor. This rotates the second threaded rod, moving the slider, mounting bracket, and brush above the capacitive distance sensor. The capacitive distance sensor detects the brush bristle length. When wear occurs, the first motor is activated, rotating the first threaded rod, causing the lifting block to lower the brush, thus achieving an adaptive compensation effect based on the degree of wear. When wear becomes too severe, the electromagnetic block is de-energized, releasing the adsorption on the iron sheet, thereby achieving rapid brush replacement.

Description

Technical Field

[0001] This application relates to the technical field of paint washability testing equipment, and in particular to a paint washability testing instrument with self-compensation function for brush wear. Background Technology

[0002] The paint scrub resistance tester is an instrument used to evaluate the scrub resistance of paints. It can also evaluate the performance of any surface treated with film composites, such as paint, electroplating, baseboard, topcoat, wood density, etc. The device scrubs the coating on the paint and standard test board, and the number of scrubs can be read directly by a counter. Based on the number of scrub resistance tests, the importance and necessity of paint scrub resistance testing can be assessed.

[0003] However, it has been found in the existing technology that the brush bristles will wear down during the reciprocating washing process. The worn bristles will cause the bristles to fail to make effective contact with the test plate. The existing brush components cannot fill the gaps caused by the worn bristles in real time, resulting in inaccurate testing when the brush wears down. Utility Model Content

[0004] The purpose of this application is to provide a paint washability tester with self-compensation function for brush bristle wear. It has the advantages of being able to adaptively compensate the height of the brush part according to the degree of brush bristle wear, and being able to quickly replace the brush part by energizing and de-energizing the electromagnetic block when the wear is too severe. This solves the problems mentioned in the background art.

[0005] This application provides a paint washability tester with self-compensating brush wear function, which adopts the following technical solution: It includes an instrument body, a capacitive distance sensor fixedly mounted on the upper surface of the instrument body, a shelf fixedly mounted on the inner wall of the instrument body, a mounting frame above the instrument body, a first motor fixedly connected to the upper surface of the mounting frame, a first threaded rod fixedly connected to the output shaft of the first motor, the outer surface of the first threaded rod rotatably connected to the inner wall of the mounting frame, a lifting block threadedly connected to the outer surface of the first threaded rod, mounting boxes fixedly connected to the front and back of the lifting blocks, an electromagnetic block fixedly mounted on the inner top wall of each mounting box, an iron sheet adsorbed on the bottom surface of each electromagnetic block, a brush fixedly mounted on the bottom surface of each iron sheet, a second motor fixedly mounted on the front of the instrument body, a second threaded rod fixedly connected to the output shaft of the second motor, and sliders fixedly mounted at both ends of the mounting frame, with the outer surface of the second threaded rod threadedly connected to the inner wall of the corresponding slider.

[0006] By adopting the above technical solution, a capacitive ranging sensor is installed on the upper surface of the instrument body, enabling non-contact detection. A placement plate is set on the inner wall of the instrument body, facilitating the placement of the test plate. A mounting frame is provided, and a first motor is installed on the upper surface of the mounting frame, enabling the first motor to drive a first threaded rod, allowing the first threaded rod to rotate on the inner wall of the mounting frame. A lifting block is connected to the first threaded rod, and mounting boxes are fixed on the front and back of the lifting block. An electromagnetic block is set on the inner top wall of the mounting box to fix the electromagnetic block. (The last sentence appears to be incomplete and possibly refers to a separate process involving a brush.) An iron plate is mounted on the upper surface of the brush component, allowing it to connect with the electromagnetic block. After the brush component has brushed the test plate a certain number of times, the second motor drives the second threaded rod to rotate, causing the slider and mounting bracket to move the brush component. At this point, the brush component moves above the capacitive distance sensor, which detects the bristle length. When the bristle length shows wear, the first motor is activated to drive the first threaded rod to rotate, causing the lifting block to lower the brush component, thus achieving an adaptive compensation effect based on the degree of wear. When the wear is too severe, the electromagnetic block is de-energized, causing the iron plate to disengage from the electromagnetic block, allowing the brush component to be replaced quickly.

[0007] Preferably, two slide rods are fixedly connected to the upper surface of each mounting box, and the outer surface of each slide rod is slidably connected to the inner wall of the mounting frame.

[0008] By adopting the above technical solution, a sliding rod is fixed on the upper surface of the mounting box and connected to the mounting frame. The sliding connection between the sliding rod and the mounting frame enables the limiting of the mounting box during lifting and lowering.

[0009] Preferably, the outer surface of each slider is slidably connected to the inner wall of the instrument body.

[0010] By adopting the above technical solution, the surface of the slider is connected to the connecting groove on the surface of the instrument body, and a sliding connection is set to limit the slider, thereby ensuring that the slider can drive the mounting frame to move stably.

[0011] Preferably, two fixing blocks are fixedly connected to both the front and back of the instrument body, and the outer surface of the second threaded rod is rotatably connected to the inner wall of the corresponding fixing block.

[0012] By adopting the above technical solution, the fixing blocks are installed on the front and back of the instrument body to form a fixed connection, thereby realizing the installation of the fixing blocks. The second threaded rod is connected to the corresponding fixing block to form a rotating connection, thereby realizing the limiting of the second threaded rod.

[0013] Preferably, a guide rod is slidably connected to the inner wall of one of the sliders, and the outer surface of the guide rod is fixedly connected to the inner wall of the corresponding fixed block.

[0014] By adopting the above technical solution, the guide rod is set on the inner wall of the rear slider and configured as a sliding connection. The surface of the guide rod is fixed to the inner wall of the fixed block to realize the installation of the guide rod. In this way, the stability of the slider during movement can be further improved by the guide rod.

[0015] Preferably, the shelf is provided with two pressure blocks on the left and right sides, and each pressure block is rotatably connected to a locking bolt on its inner wall, and the outer surface of each locking bolt is threaded to the inner wall of the shelf.

[0016] By adopting the above technical solution, the pressure block is set on the left and right sides of the placement plate, and the locking bolt is installed on the inner wall of the pressure block as a rotating connection. The locking bolt and the placement plate are connected by a thread. When the locking bolt is rotated, the pressure block can press and clamp the test plate.

[0017] Preferably, a support frame is fixedly installed on the upper surface of the instrument body, a liquid storage cylinder is fixedly installed on the inner wall of the support frame, and two connecting pipes are fixedly connected to the outer surface of the liquid storage cylinder.

[0018] By adopting the above technical solution, the support frame is installed on the upper surface of the instrument body to fix the support frame. The liquid storage cylinder is set on the inner wall of the support frame to support the liquid storage cylinder. The liquid storage cylinder facilitates the holding of soap solution. By setting the connecting pipe on the outer surface of the liquid storage cylinder, the soap solution can be easily transferred through the connecting pipe.

[0019] Preferably, a dripper is fixedly installed at the other end of each of the connecting tubes, and the outer surface of each dripper is fixedly connected to the inner wall of the mounting bracket.

[0020] By adopting the above technical solution, the dripper is set at the other end of the corresponding connecting tube and installed on the inner wall of the mounting bracket to realize the installation of the dripper, and the dripper facilitates the dripping of soap solution onto the surface of the test plate to be tested.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] This paint washability tester with self-compensating brush wear function utilizes components such as a capacitive distance sensor, a first threaded rod, an electromagnetic block, and a second threaded rod. After a certain number of uses, the second threaded rod is rotated by a second motor, moving the slider, mounting frame, and brush above the capacitive distance sensor. The capacitive distance sensor detects the brush bristle length. When wear occurs, the first motor is activated, rotating the first threaded rod and causing the lifting block to lower the brush, thus achieving adaptive compensation based on the degree of wear. When wear is too severe, the electromagnetic block is de-energized, releasing the adsorption on the iron sheet, allowing for rapid brush replacement. A sliding rod is positioned on the upper surface of the mounting box, and its sliding connection with the mounting frame limits the lifting and lowering of the mounting box. Driven by the second motor, the slider can move laterally back and forth, allowing the brush to wash the test plate surface. During the washing process, soap solution inside the storage cylinder continuously drips onto the test plate surface through the connecting pipe and dripper, ensuring the test plate remains moist. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the entire application in three dimensions;

[0024] Figure 2 This is a schematic diagram of the overall front view of this application;

[0025] Figure 3 This is a schematic diagram showing the connection between the main body of the instrument and the capacitive ranging sensor in this application.

[0026] Figure 4 This is a schematic diagram of the connection relationship between the second threaded rod and the slider in this application;

[0027] Figure 5 This is a structural schematic diagram showing the connection relationship between the first threaded rod and the lifting block in this application;

[0028] Figure 6 This is a schematic diagram showing the connection between the connecting tube and the dripper in this application.

[0029] In the picture:

[0030] 1. Instrument body; 2. Capacitive distance sensor; 3. Mounting frame; 4. First motor; 5. First threaded rod; 6. Lifting block; 7. Mounting box; 8. Electromagnetic block; 9. Iron sheet; 10. Brush; 11. Slide rod; 12. Shelf plate; 13. Locking bolt; 14. Pressure block; 15. Sliding block; 16. Fixing block; 17. Guide rod; 18. Second motor; 19. Second threaded rod; 20. Support frame; 21. Liquid storage cylinder; 22. Connecting pipe; 23. Dropper. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 6 This application will be described in further detail below.

[0032] Example 1: A paint scrub resistance tester with self-compensating brush abrasion function. Please refer to [link / reference]. Figure 3 , Figure 4 and Figure 5 The instrument includes a main body 1, on which a capacitive ranging sensor 2 is fixedly mounted. A placement plate 12 is fixedly mounted on the inner wall of the main body 1. The capacitive ranging sensor 2 is mounted on the upper surface of the main body 1, enabling non-contact detection. The placement plate 12 is located on the inner wall of the main body 1, facilitating the placement of test plates. A mounting frame 3 is located above the main body 1. A first motor 4 is fixedly connected to the upper surface of the mounting frame 3. A first threaded rod 5 is fixedly connected to the output shaft of the first motor 4. The outer surface of the first threaded rod 5 is rotatably connected to the inner wall of the mounting frame 3. A lifting block 6 is threadedly connected to the outer surface of the first threaded rod 5. Mounting blocks 6 are fixedly connected to mounting boxes 7 on both the front and back. Electromagnetic blocks 8 are fixedly installed on the inner top wall of each mounting box 7. Iron plates 9 are adsorbed on the bottom surface of each electromagnetic block 8. Brush pieces 10 are fixedly installed on the bottom surface of each iron plate 9. A mounting frame 3 is set up, and a first motor 4 is installed on the upper surface of the mounting frame 3 to realize the installation of the first motor 4. The first motor 4 drives the first threaded rod 5, so that the first threaded rod 5 can rotate on the inner wall of the mounting frame 3 to connect the lifting block 6 to the first threaded rod 5. Mounting boxes 7 are fixed on the front and back of the lifting block 6. Electromagnetic blocks 8 are set on the inner top wall of the mounting box 7 to realize the fixation of the electromagnetic blocks 8. Iron plates 9 are installed on the upper surface of the brush pieces 10 so that the iron plates 9 can connect with the electromagnetic blocks 8.

[0033] Please see Figure 1 , Figure 2 and Figure 4The instrument body 1 has a second motor 18 fixedly mounted on its front side. The output shaft of the second motor 18 is fixedly connected to a second threaded rod 19. Both ends of the mounting frame 3 are fixedly mounted with sliders 15. The outer surface of the second threaded rod 19 is threadedly connected to the inner wall of the corresponding slider 15. After the brush 10 has brushed the test plate a certain number of times, the second motor 18 drives the second threaded rod 19 to rotate, causing the sliders 15 and the mounting frame 3 to move the brush 10. At this time, the brush 10 moves to the top of the capacitive distance sensor 2. The capacitive distance sensor 2 detects the bristle length of the brush 10. When the bristle length is worn, the first motor 4 is started to drive the first threaded rod 5 to rotate, causing the lifting block 6 to lower the brush 10, thereby achieving the effect of adaptive compensation according to the degree of wear. When the wear is too severe, the electromagnetic block 8 is de-energized, causing the iron plate 9 to be released from the electromagnetic block 8. At this time, the brush 10 can be replaced, thereby achieving the effect of rapid replacement of the brush 10.

[0034] Example 2: A paint scrub resistance tester with self-compensating bristle wear function. Please refer to [link / reference]. Figure 2 , Figure 4 and Figure 5 Two slide rods 11 are fixedly connected to the upper surface of each mounting box 7. The outer surface of each slide rod 11 is slidably connected to the inner wall of the mounting frame 3. The slide rods 11 are fixed to the upper surface of the mounting box 7 and connected to the mounting frame 3. The sliding connection between the slide rods 11 and the mounting frame 3 is used to limit the lifting and lowering of the mounting box 7. The outer surface of each slider 15 is slidably connected to the inner wall of the instrument body 1. The surface of the slider 15 is connected to the connecting groove on the surface of the instrument body 1, which is set as a sliding connection to limit the slider 15, thereby ensuring that the slider 15 can drive the mounting frame 3 to move stably.

[0035] Please see Figure 4 Two fixing blocks 16 are fixedly connected to the front and back of the instrument body 1. The outer surface of the second threaded rod 19 is rotatably connected to the inner wall of the corresponding fixing block 16. The fixing blocks 16 are installed on the front and back of the instrument body 1, which is a fixed connection to realize the installation of the fixing blocks 16. The second threaded rod 19 is connected to the corresponding fixing block 16, which is a rotatable connection to realize the limiting of the second threaded rod 19. A guide rod 17 is slidably connected to the inner wall of one of the sliders 15. The outer surface of the guide rod 17 is fixedly connected to the inner wall of the corresponding fixing block 16. The guide rod 17 is set on the inner wall of the rear slider 15, which is a slidable connection. The surface of the guide rod 17 is fixed to the inner wall of the fixing block 16 to realize the installation of the guide rod 17. Thus, the stability of the slider 15 when moving can be further improved by the guide rod 17.

[0036] Please see Figure 2 , Figure 4and Figure 6 Two pressure blocks 14 are provided on the left and right sides of the placement plate 12. Each pressure block 14 has a locking bolt 13 rotatably connected to its inner wall. The outer surface of each locking bolt 13 is threaded to the inner wall of the placement plate 12. The pressure blocks 14 are positioned on the left and right sides of the placement plate 12, and the locking bolts 13 are installed on the inner walls of the pressure blocks 14, forming a rotatable connection. The locking bolts 13 are threaded to the placement plate 12. When the locking bolts 13 are rotated, the pressure blocks 14 can clamp and hold the test plate. A support frame 20 is fixedly installed on the upper surface of the instrument body 1. A liquid storage cylinder 21 is fixedly installed on the inner wall of the support frame 20. Two connecting pipes 22 are fixedly connected to the outer surface of the liquid storage cylinder 21. The support frame 20 is installed on the upper surface of the instrument body 1 to fix the support frame 20. The liquid storage cylinder 21 is set on the inner wall of the support frame 20 to support the liquid storage cylinder 21. The liquid storage cylinder 21 is convenient for holding soap solution. The connecting pipe 22 is set on the outer surface of the liquid storage cylinder 21 so that the soap solution can be easily transferred through the connecting pipe 22. The other end of each connecting pipe 22 is fixedly installed with a dropper 23. The outer surface of each dropper 23 is fixedly connected to the inner wall of the mounting frame 3. The dropper 23 is set on the other end of the corresponding connecting pipe 22 and installed on the inner wall of the mounting frame 3 to install the dropper 23. The dropper 23 is convenient for dripping soap solution onto the surface of the test plate to be tested.

[0037] The implementation principle of this application embodiment is as follows: In use, the test plate to be tested is first placed on the placement plate 12, and then the locking bolt 13 is rotated so that the pressure block 14 can press the test plate to be tested tightly. The second motor 18 is started to drive the second threaded rod 19 to rotate, and the second threaded rod 19 drives the slider 15 to move. At this time, the slider 15, the mounting bracket 3 and the brush 10 move synchronously. The brush 10 can clean the test plate to be tested. Soap solution is added into the liquid storage cylinder 21. Through the connecting pipe 22 and the drip head 23, the soap solution can be continuously dripped onto the test plate to be tested to ensure moisture. After the brush 10 is used a certain number of times, the second motor 18 drives the second threaded rod 19 to rotate. Rotating the slider 15, mounting bracket 3, and brush 10 moves them above the capacitive distance sensor 2. The capacitive distance sensor 2 detects the bristle length of the brush 10. When wear occurs, the first motor 4 is activated to rotate the first threaded rod 5, causing the lifting block 6 to lower the brush 10. This allows the device to achieve adaptive compensation based on the degree of bristle wear. When the bristle wear is too severe, the electromagnetic block 8 is de-energized, releasing the iron plate 9 and removing the brush 10. A new brush 10 is then installed. By energizing the electromagnetic block 8, the iron plate 9 is re-engaged, thus achieving rapid replacement of the brush 10.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. A paint scrub resistance tester with bristle wear self-compensation function, comprising an instrument main body (1), characterized in that: A capacitive distance sensor (2) is fixedly mounted on the upper surface of the instrument body (1). A shelf (12) is fixedly mounted on the inner side wall of the instrument body (1). A mounting frame (3) is provided above the instrument body (1). A first motor (4) is fixedly connected to the upper surface of the mounting frame (3). A first threaded rod (5) is fixedly connected to the output shaft of the first motor (4). The outer surface of the first threaded rod (5) is rotatably connected to the inner wall of the mounting frame (3). A lifting block (6) is threadedly connected to the outer surface of the first threaded rod (5). The front and back of the lifting block (6) are both fixed. The mounting box (7) is fixedly connected to the inner top wall of each mounting box (7), an electromagnetic block (8) is fixedly installed, an iron sheet (9) is adsorbed on the bottom surface of each electromagnetic block (8), and a brush piece (10) is fixedly installed on the bottom surface of each iron sheet (9). A second motor (18) is fixedly installed on the front of the instrument body (1), and a second threaded rod (19) is fixedly connected to the output shaft of the second motor (18). Slider (15) is fixedly installed at both ends of the mounting frame (3), and the outer surface of the second threaded rod (19) is threadedly connected to the inner wall of the corresponding slider (15).

2. The washable paint resistance tester with bristle wear self-compensation function according to claim 1, characterized in that: Two slide rods (11) are fixedly connected to the upper surface of each mounting box (7), and the outer surface of each slide rod (11) is slidably connected to the inner wall of the mounting frame (3).

3. The washable paint resistance tester with bristle wear self-compensation function according to claim 1, characterized in that: The outer surface of each slider (15) is slidably connected to the inner wall of the instrument body (1).

4. The washable paint resistance tester with bristle wear self-compensation function according to claim 1, characterized in that: The instrument body (1) has two fixed blocks (16) fixedly connected to both the front and back sides, and the outer surface of the second threaded rod (19) is rotatably connected to the inner wall of the corresponding fixed block (16).

5. The washable paint resistance tester with bristle wear self-compensation function according to claim 4, characterized in that: One of the sliders (15) has a guide rod (17) slidably connected to its inner wall, and the outer surface of the guide rod (17) is fixedly connected to the inner wall of the corresponding fixing block (16).

6. The washable paint resistance tester with bristle wear self-compensation function according to claim 1, characterized in that: The shelf (12) is provided with two pressure blocks (14) on the left and right sides. Each pressure block (14) has a locking bolt (13) rotatably connected to its inner wall. The outer surface of each locking bolt (13) is threaded to the inner wall of the shelf (12).

7. The washable paint resistance tester with bristle wear self-compensation function according to claim 1, characterized in that: A support frame (20) is fixedly installed on the upper surface of the instrument body (1), and a liquid storage cylinder (21) is fixedly installed on the inner wall of the support frame (20). Two connecting pipes (22) are fixedly connected to the outer surface of the liquid storage cylinder (21).

8. The washable paint resistance tester with bristle wear self-compensation function according to claim 7, characterized in that: Each of the connecting tubes (22) has a dripper (23) fixedly installed at the other end, and the outer surface of each dripper (23) is fixedly connected to the inner wall of the mounting bracket (3).

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