A test cloth assembly for a rub tester

Abstract

The utility model discloses a kind of test cloth assembly components for friction resistance testing machine, including test cloth installation component, infiltration component, taut component and winding component, test cloth roll material is installed on test cloth installation component, test cloth is connected winding component after infiltration component, test cloth after use is stored using winding component, taut component acts on test cloth, so that test cloth is in tight state.The utility model is used to refit to existing testing machine, to save the labor waste caused by frequent replacement of test cloth.Cleverly through taut component, locking and unlocking are realized to taut component, test cloth is replaced by winding component, greatly reduce manpower, and fully automatic operation.Test cloth installation component uses support roller and counterweight combination, test cloth roll material is fixed and a certain resistance is provided, so that contact is tested, test cloth roll material cannot be discharged.

Description

Technical Field

[0001] This utility model relates to the field of testing, and in particular to a test cloth assembly for a friction resistance testing machine. Background Technology

[0002] In the bathroom fixtures industry, components such as toilet flush buttons are often integrated into a control panel. When developing the technology for this panel, as an aesthetic component, the wear and tear caused by prolonged finger pressure must be considered. Therefore, it is necessary to test the panel's abrasion resistance. Existing testing machines wrap test cloth around the contacts and use a driver to press the contacts against the panel surface to achieve the test effect. However, this requires frequent replacement of the test cloth, which consumes a significant amount of manpower. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the main purpose of this utility model is to overcome the shortcomings of the prior art and disclose a test cloth assembly for a friction resistance testing machine, including a test cloth mounting assembly, an impregnation assembly, a tensioning assembly and a winding assembly. The test cloth roll is mounted on the test cloth mounting assembly. After the test cloth passes through the impregnation assembly, it is connected to the winding assembly. The winding assembly is used to store the used test cloth. The tensioning assembly acts on the test cloth to keep the test cloth in a taut state.

[0004] Furthermore, the test cloth mounting assembly includes a first bracket, two spaced-apart support rollers, a counterweight, and a guide roller. The first bracket is provided with a mounting groove. The counterweight is disposed between the two support rollers and slidably connected to the mounting groove. The guide roller is disposed on the first bracket. The test cloth roll is placed on the two support rollers and pressed by the counterweight. The guide roller is used to lead the test cloth out of the first bracket.

[0005] Furthermore, a flange is provided at the end of the support roller.

[0006] Furthermore, the immersion assembly includes a base, a pressure plate, and a peristaltic pump. The base has a recessed immersion tank, and the pressure plate is disposed in the immersion tank and is snapped and fixed to the base. The pressure plate is used to make the test cloth contact the bottom of the immersion tank. The bottom of the immersion tank is provided with a liquid outlet hole connected to the peristaltic pump.

[0007] Furthermore, the tensioning assembly includes a pressure rod, a swing arm, a retainer, and a torsion spring. The swing arm is oscillatingly mounted on the second bracket, the pressure rod is mounted on the swing arm, the retainer is mounted on the second bracket, and controls the locking and unlocking of the swing arm. The torsion spring acts on the swing arm, providing a directional driving force to the swing arm.

[0008] Furthermore, the fixing device is an electromagnet, and a magnetic block is provided on the swing arm.

[0009] Furthermore, the tensioning assembly also includes a limiting block disposed on the second bracket to restrict the swing arm to a stop position in direction one.

[0010] Furthermore, the winding assembly includes a servo motor, a winding shaft, and a winding reel. The servo motor is fixed on a second bracket, the winding shaft is connected to the servo motor, and the winding reel is sleeved on the winding shaft. The servo motor drives the winding shaft to rotate the winding reel.

[0011] Furthermore, the take-up reel and the take-up shaft are connected by a spline.

[0012] Furthermore, the winding assembly also includes a locking nut and a compression spring. The end of the winding shaft has an axially protruding connecting portion. The locking nut is threadedly connected to the connecting portion. The compression spring is sleeved on the winding shaft, and the two ends of the compression spring act on the locking nut and the winding reel, respectively.

[0013] The beneficial effects achieved by this utility model are as follows: This invention is used to retrofit existing testing machines to save labor costs associated with frequent test cloth changes. A cleverly designed tensioning assembly allows for locking and unlocking, while a winding assembly facilitates test cloth replacement, significantly reducing manpower and enabling fully automated operation. The test cloth mounting assembly uses a combination of support rollers and counterweights to fix the test cloth roll and provide resistance, preventing the roll from unwinding during testing. When changing the test cloth, the winding assembly overcomes the resistance from the mounting assembly, pulling the cloth out. A peristaltic pump quantitatively delivers simulated sweat to the test cloth, making the test results more closely resemble actual usage conditions. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the test cloth assembly component of a friction resistance testing machine according to the present invention. Figure 2 for Figure 1 A three-dimensional structural diagram from another perspective; Figure 3 A schematic diagram of the structure for mounting components on the test cloth; Figure 4 This is a schematic diagram of the structure of the wetting component; Figure 5 To enter the cross-sectional view of the component; Figure 6 A schematic diagram of the combination of the tensioning assembly and the winding assembly; Figure 7 for Figure 6 Another structural diagram from a different perspective; Figure 8 This is a schematic diagram showing the usage state of the test cloth assembly components of the abrasion resistance testing machine according to this utility model; The attached figures are labeled as follows: 1. Test cloth mounting assembly; 2. Impregnation assembly; 3. Tensioning assembly; 4. Rewinding assembly; 5. Second bracket; 11. First bracket; 12. Support roller; 13. Counterweight; 14. Guide roller; 15. Mounting groove; 16. Flange; 21. Base; 22. Pressure plate; 23. Liquid outlet; 31. Pressure rod; 32. Swing arm; 33. Fixer; 34. Limiting block; 41. Servo motor; 42. Rewinding shaft; 43. Rewinding reel; 44. Locking nut; 45. Compression spring; 421. Connecting part. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0016] A test cloth assembly for an abrasion resistance testing machine, such as Figures 1-8 As shown, the device includes a test cloth mounting assembly 1, an impregnation assembly 2, a tensioning assembly 3, and a winding assembly 4. The test cloth roll is mounted on the test cloth mounting assembly 1. After passing through the impregnation assembly 2, the test cloth is connected to the winding assembly 4. The winding assembly 4 is used to store the used test cloth. The tensioning assembly 3 acts on the test cloth to keep it taut.

[0017] In use, the simulated finger probe pushes the test cloth toward the panel. The tensioning component 3 makes the test cloth adhere tightly to the probe. After the probe retracts, the tensioning component straightens the test cloth, waiting for the next probe action.

[0018] In one embodiment, such as Figures 1-8As shown, the test cloth mounting assembly 1 includes a first bracket 11, two spaced-apart support rollers 12, a counterweight 13, and a guide roller 14. The first bracket 11 has a mounting groove 15. The counterweight 13 is positioned between the two support rollers 12. The test cloth roll is wound onto a tube. The test cloth roll is placed on the two support rollers 12, and the counterweight 13 is placed inside the tube, providing downward pressure to fix the test cloth roll onto the support rollers 12. One end of the counterweight 13 is slidably connected to the mounting groove 15; the mounting groove 15 guides the counterweight 13 to move up and down. The guide roller 14 is mounted on the first bracket 11. After the test cloth roll is drawn out, it passes around the guide roller 14 and changes its direction of movement. The support rollers 12 are not rotatably connected to the first bracket 11; the friction between the test cloth roll and the support rollers 12 overcomes the tensioning force of the tensioning assembly, preventing the test cloth roll from being released during testing.

[0019] In one embodiment, such as Figures 1-8 As shown, a flange 16 is provided at the end of the support roller 12. This serves to limit the test fabric roll and prevent it from slipping out accidentally.

[0020] In one embodiment, such as Figures 1-8 As shown, the immersion assembly 2 includes a base 21, a pressure plate 22, and a peristaltic pump (not shown). The base 21 has a recessed immersion tank, and the pressure plate 22 is disposed within the immersion tank and snapped into and fixed to the base 21. The base 21 and the pressure plate 22 form a passageway that allows the test cloth to pass through. The pressure plate 22 is used to make the test cloth contact the bottom of the immersion tank. The bottom of the immersion tank is provided with an outlet hole 23 connected to the peristaltic pump. The peristaltic pump delivers a metered amount of simulated sweat into the immersion tank, which is then discharged from the outlet hole 23. The test cloth covers the outlet hole 23, and the simulated sweat is absorbed by the test cloth, making the test conditions close to the actual use scenario.

[0021] In one embodiment, such as Figures 1-8 As shown, the tensioning assembly 3 includes a pressure rod 31, a swing arm 32, a retainer 33, and a torsion spring (not shown). The swing arm 32 is oscillatingly mounted on the second bracket 5. The pressure rod 31 is mounted on the swing arm 32. The retainer 33 is mounted on the second bracket 5 to control the locking and unlocking of the swing arm 32. The torsion spring acts on the swing arm 32, providing a driving force in one direction to the swing arm 32 to control the swing arm 32 to rotate counterclockwise.

[0022] In the above embodiments, such as Figures 1-8 As shown, the retainer 33 is an electromagnet, and a magnetic block is provided on the swing arm 32. The swing arm 32 is locked by the electromagnet attracting the magnetic block.

[0023] During use, repeated contact between the test probe and the panel can cause wear on the test cloth surface, leading to inaccurate test results. Therefore, the test cloth needs to be replaced after the set number of tests. Through the aforementioned structure, the retainer 33 locks the swing arm 32. At this time, the roll of test cloth can be unloaded via the winding assembly 4. After completion, the retainer 33 releases the lock on the swing arm 32.

[0024] In one embodiment, such as Figures 1-8 As shown, the tensioning assembly 3 also includes a limiting block 34, which is disposed on the second bracket 5 to limit the swing arm 32 to a stop position in direction one, thus preventing the swing arm 32 from acting directly on the retainer 33.

[0025] In one embodiment, such as Figures 1-8 As shown, the winding assembly 4 includes a servo motor 41, a winding shaft 42, and a winding reel 43. The servo motor 41 is fixed on the second bracket 5. The winding shaft 42 is connected to the servo motor 41. The winding reel 43 is sleeved on the winding shaft 42. The servo motor 41 drives the winding shaft 42 to rotate the winding reel 43.

[0026] In the above embodiments, such as Figures 1-8 As shown, the take-up reel 43 and the take-up shaft 42 are connected by a spline.

[0027] In the above embodiments, such as Figures 1-8 As shown, the take-up assembly 4 also includes a locking nut 44 and a pressure spring 45. A connecting portion 421 protrudes axially from the end of the take-up shaft 42. The locking nut 44 is threadedly connected to the connecting portion 421. The pressure spring 45 is sleeved on the take-up shaft 42, with its two ends acting on the locking nut 44 and the take-up reel 43, respectively. The pressure spring 45 provides axial thrust to the take-up reel 43, ensuring that the take-up reel 43 is pressed tightly against the other end of the take-up shaft. Furthermore, it can accommodate take-up reels 43 of different lengths.

[0028] When using this utility model, such as Figures 1-8 As shown, the test cloth roll is installed on the test cloth mounting assembly. The test cloth is led out, passes around the guide roller 14, moves downwards, passes around the pressure bar 31, and then connects to the take-up reel 43, so that the test cloth is in a vertically taut state. During testing, the retainer 33 releases the lock on the swing arm 32, and the contact pushes the test cloth towards the panel. The swing arm 32 swings with the contact pushing the test cloth. After the set number of tests, the retainer 33 locks the swing arm 32, and the servo motor 41 rotates to drive the take-up reel 43 to rotate, thereby winding up the test cloth. At the same time, it overcomes the resistance of the unloading of the test cloth mounting assembly 1, so that the new end of the test cloth moves to the corresponding position of the contact. During this process, the peristaltic pump fills the immersion tank with simulated sweat, so that the simulated sweat is absorbed by the test cloth.

[0029] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of implementation of the present utility model. Any modifications or equivalent substitutions to the present utility model without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present utility model.

Claims

1. A test cloth assembly for a rub tester, comprising: The device includes a test cloth mounting assembly, an impregnation assembly, a tensioning assembly, and a winding assembly. The test cloth roll is mounted on the test cloth mounting assembly. After passing through the impregnation assembly, the test cloth is connected to the winding assembly. The winding assembly is used to store the used test cloth. The tensioning assembly acts on the test cloth to keep it taut.

2. A test cloth assembly for a rub tester according to claim 1, wherein, The test cloth mounting assembly includes a first bracket, two spaced-apart support rollers, a counterweight, and a guide roller. The first bracket has a mounting groove. The counterweight is positioned between the two support rollers and is slidably connected to the mounting groove. The guide roller is positioned on the first bracket. The test cloth roll is placed on the two support rollers and pressed by the counterweight. The guide roller is used to guide the test cloth out of the first bracket.

3. The test cloth assembly for an abrasion resistance testing machine according to claim 2, characterized in that, The end of the support roller is provided with a flange.

4. The test cloth assembly for an abrasion resistance testing machine according to claim 1, characterized in that, The immersion assembly includes a base, a pressure plate, and a peristaltic pump. The base has a recessed immersion tank, and the pressure plate is disposed in the immersion tank and is snapped and fixed to the base. The pressure plate is used to make the test cloth contact the bottom of the immersion tank. The bottom of the immersion tank is provided with a liquid outlet hole connected to the peristaltic pump.

5. A test cloth assembly for a friction resistance testing machine according to claim 1, characterized in that, The tensioning assembly includes a pressure rod, a swing arm, a retainer, and a torsion spring. The swing arm is oscillatingly mounted on a second bracket. The pressure rod is mounted on the swing arm. The retainer is mounted on the second bracket and controls the locking and unlocking of the swing arm. The torsion spring acts on the swing arm and provides a directional driving force to the swing arm.

6. A test cloth assembly for a friction resistance testing machine according to claim 5, characterized in that, The fixing device is an electromagnet, and a magnetic block is provided on the swing arm.

7. A test cloth assembly for a friction resistance testing machine according to claim 5, characterized in that, The tensioning assembly also includes a limiting block disposed on the second bracket to restrict the swing arm to a stop position in direction one.

8. A test cloth assembly for a friction resistance testing machine according to claim 1, characterized in that, The winding assembly includes a servo motor, a winding shaft, and a winding reel. The servo motor is fixed on a second bracket, the winding shaft is connected to the servo motor, and the winding reel is sleeved on the winding shaft. The servo motor drives the winding shaft to rotate the winding reel.

9. A test cloth assembly for a friction resistance testing machine according to claim 8, characterized in that, The take-up reel and the take-up shaft are connected by a spline.

10. A test cloth assembly for a friction resistance testing machine according to claim 8, characterized in that, The winding assembly also includes a locking nut and a compression spring. The end of the winding shaft has an axially protruding connecting part. The locking nut is threadedly connected to the connecting part. The compression spring is sleeved on the winding shaft. The two ends of the compression spring act on the locking nut and the winding reel, respectively.

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