Non-woven fabric scratch-resistant experiment equipment

Abstract

The utility model relates to the technical field of non-woven fabric performance detection equipment, in particular to non-woven fabric scratch-resistant experiment equipment which comprises a base, scratch-resistant detection equipment, a mounting groove and a counting device, the counting device comprises a rotating rod, a circular ring, a motor, a driving handle, a fixing sleeve and a sliding rod, the surface of the sliding rod is fixedly connected with a connecting block, one end of the sliding rod is provided with a through hole, and the other end of the sliding rod is provided with a through hole. Springs are fixedly connected to the inner walls of the through holes, abutting rods are fixedly connected to one ends of the springs, the surfaces of the abutting rods are slidably connected with the inner walls of the through holes, and pressure sensors are fixedly mounted on the inner walls of the mounting grooves. According to the utility model, the counting device is arranged, so that the number of times of scraping and abrasion can be monitored in real time, the accuracy of an experiment is improved, and the problem that the accuracy of judging the scraping and abrasion resistance of the non-woven fabric according to the number of times of scraping and abrasion of the non-woven fabric is reduced due to the fact that the number of times of friction is set in advance when the non-woven fabric is subjected to scraping and abrasion experiment in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of nonwoven fabric performance testing equipment, and in particular to a nonwoven fabric scratch resistance testing device. Background Technology

[0002] During the research and development stage of nonwoven fabric products, scratch and abrasion resistance testing equipment is an indispensable part. The scratch and abrasion resistance testing equipment can simulate the scratches and wear that nonwoven fabrics may suffer in actual use. Through testing, key performance indicators such as abrasion resistance and tear resistance of nonwoven fabrics can be evaluated, thereby understanding their applicability in specific application scenarios.

[0003] In existing technologies, during testing, the nonwoven fabric to be tested is cut into samples of a specified size and fixed on a sample clamping device. Subsequently, appropriate parameters such as pressure, rotation speed, and number of friction cycles are set according to testing requirements. After the equipment is started, the sample will undergo relative frictional motion with the abrasive under the set conditions to simulate the wear process in actual use. After the test, the wear resistance of the nonwoven fabric can be evaluated by observing the wear of the sample and combining it with the number of friction cycles recorded by the counter.

[0004] In existing technologies, the number of abrasion tests on nonwoven fabrics is preset. However, this preset number of abrasion tests may result in the set number being reached before the nonwoven fabric is completely damaged or is already completely damaged, while the abrasion test continues. This reduces the accuracy of judging the abrasion resistance of nonwoven fabrics based on the number of abrasion tests. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a non-woven fabric abrasion resistance testing device.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A nonwoven fabric insulation performance testing device includes a base and a scratch resistance testing device disposed inside the base. One side of the scratch resistance testing device has a mounting groove, and a counting device is disposed inside the mounting groove. The counting device includes a rotating rod rotatably connected to the inner wall of the mounting groove, with a circular ring fixedly connected to the top end of the rotating rod. A motor is fixedly mounted on the inner wall of the mounting groove, and a drive handle is fixedly connected to the output end of the motor. One end of the drive handle is slidably connected to the inner wall of the circular ring. Two fixing sleeves are fixedly connected to the inner top wall of the mounting groove. A sliding rod is slidably connected to the inner wall of the fixed sleeve. A fixed plate is fixedly connected to one side of the mounting groove. A sliding groove is opened on one side of the fixed plate. A connecting block is slidably connected to the inner wall of the sliding groove. The surface of the sliding rod is rotatably connected to the top of the circular ring through a rotating seat. The surface of the sliding rod is fixedly connected to the connecting block. A through hole is opened at one end of the sliding rod. A spring is fixedly connected to the inner wall of the through hole. An abutment rod is fixedly connected to one end of the spring. The surface of the abutment rod is slidably connected to the inner wall of the through hole. A pressure sensor is fixedly installed on the inner wall of the mounting groove.

[0008] Furthermore, a workbench is fixedly installed on one side of the scratch and abrasion resistance testing equipment. A metal rod is provided on the upper surface of the workbench, and a non-woven fabric body is wound around the surface of the metal rod. A wire is electrically connected to one side of the scratch and abrasion resistance testing equipment, and a connecting clip is electrically connected to one end of the wire.

[0009] Furthermore, the inner wall of the workbench is provided with a bevel gear, and a throttle and a screw are fixedly connected to the bevel gear respectively. The two ends of the screw are rotatably connected to the inner wall of the workbench respectively. A pressure plate is threadedly connected to the surface of the screw. The pressure plate penetrates the upper surface of the workbench and extends to the top of the workbench. The metal rod is disposed inside the pressure plate.

[0010] Furthermore, a movable block is fixedly connected to one side of the connecting block, and a detection head is provided on the movable block.

[0011] Furthermore, the scratch resistance testing equipment is equipped with a display screen, a switch, and a controller; the display screen and the switch are electrically connected to the controller.

[0012] The beneficial effects of this utility model are:

[0013] This invention utilizes a motor to rotate a drive handle, which in turn causes a circular ring to swing. This reciprocating swing of the ring synchronizes the movement of a sliding rod, connecting block, and moving block. The metal wire on the detection head then reciprocates by scraping the surface of the non-woven fabric. During this scraping process, an abutment rod at one end of the sliding rod repeatedly contacts a pressure sensor. One cycle of contact with the pressure sensor constitutes one loop, and one loop scrapes the non-woven fabric twice. The pressure on the sensor is converted into a signal by the controller and displayed on the screen, allowing for real-time monitoring of the number of scraping cycles. When the non-woven fabric is damaged by the scraping, the metal wire on the detection head contacts the metal rod, forming an energized circuit. The controller receives the signal, the motor stops, and the scraping experiment ceases. This invention solves the problem of existing non-woven fabric scraping experiments that rely on pre-set friction counts, reducing the accuracy of judging the scratch resistance of non-woven fabrics based on the number of scraping cycles. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram provided in one embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the detection device structure provided in one embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the counting device structure provided in one embodiment of the present invention;

[0017] Figure 4 This utility model provides in one embodiment Figure 3 Enlarged structural diagram at point A in the middle;

[0018] Explanation of icon numbers:

[0019] 1. Base; 2. Abrasion resistance testing equipment; 3. Workbench; 4. Wire; 5. Connecting clamp; 6. Rotary handle; 7. Bevel gear; 8. Screw; 9. Pressure plate; 10. Metal rod; 11. Non-woven fabric body; 12. Detection head; 13. Moving block; 14. Slide groove; 15. Fixing plate; 16. Mounting groove; 17. Pressure sensor; 18. Fixing sleeve; 19. Slide rod; 20. Connecting block; 21. Through hole; 22. Spring; 23. Abutment rod; 24. Motor; 25. Drive handle; 26. Rotating rod; 27. Circular ring. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0021] like Figures 1-4As shown, this utility model provides a non-woven fabric scratch resistance testing device, including a base 1 and a scratch resistance testing device 2 disposed inside the base 1. A mounting groove 16 is provided on one side of the scratch resistance testing device 2, and a counting device is disposed inside the mounting groove 16. The counting device includes a rotating rod 26 rotatably connected to the inner wall of the mounting groove 16, and a circular ring 27 is fixedly connected to the top end of the rotating rod 26. A motor 24 is fixedly installed on the inner wall of the mounting groove 16, and a drive handle 25 is fixedly connected to the output end of the motor 24. The drive handle 25 is Z-shaped. (Refer to the attached diagram.) Figure 4 As can be seen, the drive handle 25 is fitted to the inner wall of the circular ring 27. A limiting plate with a size larger than the opening of the circular ring 27 is provided to limit the drive handle 25, improving the stability of the drive handle 25 sliding inside the circular ring 27. One end of the drive handle 25 is fitted to the inner wall of the circular ring 27 for sliding connection. Two fixing sleeves 18 are fixedly connected to the inner top wall of the mounting groove 16. A slide rod 19 is slidably connected to the inner wall of the two fixing sleeves 18. A fixing plate 15 is fixedly connected to one side of the mounting groove 16. A slide groove 14 is opened on one side of the fixing plate 15. A connecting block 20 is slidably connected to the inner wall of the slide groove 14. The surface of the slide rod 19 is connected to the circular ring through a rotating seat. The top of 27 is rotatably connected, and the surface of the slide rod 19 is fixedly connected to the connecting block 20. One end of the slide rod 19 has a through hole 21, and a spring 22 is fixedly connected to the inner wall of the through hole 21. One end of the spring 22 is fixedly connected to an abutment rod 23. Through the spring 22 and the abutment rod 23, a buffering effect can be achieved when the pressure sensor 17 is squeezed, avoiding direct rigid contact and affecting the service life of the pressure sensor 17. The surface of the abutment rod 23 is slidably connected to the inner wall of the through hole 21. The pressure sensor 17 is fixedly installed on the inner wall of the mounting groove 16. The pressure sensor 17 is a prior art that has been disclosed and will not be described in detail here.

[0022] like Figure 2 As shown, in one embodiment, a workbench 3 is fixedly installed on one side of the scratch and abrasion resistance testing device 2. A metal rod 10 is provided on the upper surface of the workbench 3. A non-woven fabric body 11 is wound around the surface of the metal rod 10. A wire 4 is electrically connected to one side of the scratch and abrasion resistance testing device 2. One end of the wire 4 is electrically connected to a connecting clip 5. The handle of the connecting clip 5 is provided with insulating rubber to facilitate hand operation.

[0023] A movable block 13 is fixedly connected to one side of the connecting block 20. A detection head 12 is provided on the movable block 13. A metal wire is provided inside the detection head 12. During the scraping experiment, the metal wire contacts the non-woven fabric body 11 wound on the metal rod 10. The detection head 12 can be adjusted up and down. (See attached figure) Figure 2 A guide rod is provided above the detection head 12. The guide rod can slide up and down inside the moving block 13. A limit rod is provided on the upper part of the moving block 13 to improve the stability of the guide rod.

[0024] like Figure 1 and Figure 2 As shown, in one embodiment, a bevel gear 7 is provided on the inner wall of the worktable 3. A throttle 6 and a screw 8 are fixedly connected to the bevel gear 7. The two ends of the screw 8 are rotatably connected to the inner wall of the worktable 3. A pressure plate 9 is threadedly connected to the surface of the screw 8. The pressure plate 9 penetrates the upper surface of the worktable 3 and extends to the top of the worktable 3. A metal rod 10 is disposed inside the pressure plate 9. The pressure plate 9 can be adjusted by the throttle 6 through the screw 8 and the bevel gear 7. The pressure plate 9 is slidably limited by the upper surface of the worktable 3.

[0025] The scratch and abrasion resistance testing equipment 2 is equipped with a display screen, a switch, and a controller, and the display screen and the switch are electrically connected to the controller.

[0026] The specific working method is as follows: During use, non-woven fabric is wrapped around the metal rod 10, and then the metal rod 10 is placed on the worktable 3. The pressure plate 9 is adjusted by the throttle 6 to fix the non-woven fabric body 11 on the metal rod 10. The detection head 12 on the moving block 13 is close to the non-woven fabric body 11 on the outer wall of the metal rod 10. The metal wire inside the detection head 12 abuts against the outer wall of the non-woven fabric body 11. The connecting clip 5 at one end of the wire 4 is clamped to the end of the metal rod 10 that is not wrapped by the non-woven fabric body 11. Then, the motor 24 is started, and the motor 24 drives the drive handle 25 to rotate, which in turn drives the circular ring 27 to swing. The reciprocating swing of the circular ring 27 can realize the movement of the sliding rod 19. The receiving block 20 and the moving block 13 swing synchronously, thereby reciprocatingly scraping the surface of the nonwoven fabric body 11 through the metal wire on the detection head 12. During the reciprocating scraping process, the abutting rod 23 set at one end of the slide rod 19 can reciprocate to abut the pressure sensor 17. One cycle of abutting the pressure sensor 17 is one cycle. One cycle can scrape the nonwoven fabric body 11 twice. The pressure received by the pressure sensor 17 is converted into a signal by the controller and displayed on the screen. The number of scrapings can be monitored in real time. When the nonwoven fabric is scraped and damaged, the metal wire on the detection head 12 contacts the metal rod 10 to form an electrical circuit. The controller receives the signal, the motor 24 stops working, and the scraping experiment ends.

[0027] This utility model has been described with reference to the above-described embodiments and accompanying drawings. However, the above embodiments are merely examples for implementing this utility model. It must be noted that the disclosed embodiments do not limit the scope of this utility model. On the contrary, modifications and equivalent provisions included in the spirit and scope of the claims are all included within the scope of this utility model.

Claims

1. A nonwoven fabric abrasion resistance testing device, comprising a base and an abrasion resistance testing device disposed inside the base, characterized in that: The scratch and abrasion resistance testing equipment has a mounting groove on one side. A counting device is installed inside the mounting groove. The counting device includes a rotating rod rotatably connected to the inner wall of the mounting groove. A circular ring is fixedly connected to the top of the rotating rod. A motor is fixedly installed on the inner wall of the mounting groove. A drive handle is fixedly connected to the output end of the motor. One end of the drive handle is slidably connected to the inner wall of the circular ring. Two fixed sleeves are fixedly connected to the inner top wall of the mounting groove. A sliding rod is slidably connected to the inner wall of the two fixed sleeves. A fixed plate is fixedly connected to one side of the mounting groove. A sliding groove is opened on one side of the fixed plate. A connecting block is slidably connected to the inner wall of the sliding groove. The surface of the sliding rod is rotatably connected to the top of the circular ring via a rotating seat. The surface of the sliding rod is fixedly connected to the connecting block. A through hole is opened at one end of the sliding rod. A spring is fixedly connected to the inner wall of the through hole. A contact rod is fixedly connected to one end of the spring. The surface of the contact rod is slidably connected to the inner wall of the through hole. A pressure sensor is fixedly installed on the inner wall of the mounting groove.

2. The nonwoven fabric abrasion resistance testing device according to claim 1, characterized in that: A workbench is fixedly installed on one side of the scratch and abrasion resistance testing equipment. A metal rod is provided on the upper surface of the workbench, and a non-woven fabric body is wound around the surface of the metal rod. A wire is electrically connected to one side of the scratch and abrasion resistance testing equipment, and a connecting clip is electrically connected to one end of the wire.

3. The nonwoven fabric abrasion resistance testing device according to claim 2, characterized in that: The inner wall of the workbench is provided with a bevel gear, and a throttle and a screw are fixedly connected to the bevel gear respectively. The two ends of the screw are rotatably connected to the inner wall of the workbench. A pressure plate is threadedly connected to the surface of the screw. The pressure plate penetrates the upper surface of the workbench and extends to the top of the workbench. The metal rod is disposed inside the pressure plate.

4. The nonwoven fabric abrasion resistance testing device according to claim 1, characterized in that: A movable block is fixedly connected to one side of the connecting block, and a detection head is provided on the movable block.

5. The nonwoven fabric abrasion resistance testing device according to claim 1, characterized in that: The scratch resistance testing equipment is equipped with a display screen, a switch, and a controller, and the display screen and the switch are electrically connected to the controller.

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