A waterproof cloth abrasion resistance testing device

Abstract

This utility model relates to the field of waterproof fabric testing technology and discloses a waterproof fabric abrasion resistance testing device, including a base, a clamping mechanism above the base, and a testing mechanism located outside the clamping mechanism above the base. An adjustment groove is formed on the surface of the base, and the clamping mechanism includes a rectangular plate fixedly installed above the base. This utility model clamps and fixes both ends of the waterproof fabric using the clamping plate, then activates a limiting plate to stretch the waterproof fabric. A pressure sensor detects the pressure value of the telescopic rod. When the value reaches a set value, the telescopic rod stops moving. Compared with traditional waterproof fabric abrasion resistance testing devices, this device uses a pressure sensor to detect the stretching value, facilitating the stretching operation of the waterproof fabric, effectively eliminating collapse and wrinkles, controlling pressure, and facilitating abrasion resistance testing.

Description

Technical Field

[0001] This utility model relates to the field of waterproof fabric testing technology, and more specifically, to a waterproof fabric abrasion resistance testing device. Background Technology

[0002] Waterproof fabric is a specially treated material that prevents water penetration. It is widely used in situations requiring rain protection, moisture protection, or liquid isolation. Abrasion resistance testing equipment for waterproof fabric is mainly used to evaluate the material's durability under repeated friction, scratching, and other mechanical actions, and is an important testing tool for measuring its service life.

[0003] Traditional abrasion resistance testing devices for waterproof fabrics have the following shortcomings: In use, a sample is first cut, then both ends are fixed to a clamp. A friction wheel is used to apply fixed pressure to the sample surface and rotate, rubbing it. The degree of wear is assessed by the number of friction cycles. However, when fixing the sample ends, the waterproof fabric, typically made of soft, thin coated fabric, becomes loose in the middle area due to lack of tension when the clamp holds the edge area, leading to collapse or wrinkles. Excessive stretching can cause localized thinning or even tearing of the material, damaging the coating structure and exacerbating wrinkle formation during subsequent friction tests. Therefore, improvements are needed. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, this utility model provides a waterproof cloth abrasion resistance testing device, which has the advantage of improving the testing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waterproof fabric abrasion resistance testing device, comprising a base, a clamping mechanism above the base, a testing mechanism located outside the clamping mechanism above the base, an adjustment groove on the surface of the base, the clamping mechanism comprising a rectangular plate fixedly installed above the base, an adjustment plate movably installed at the front end of the rectangular plate, clamping assemblies fixedly installed above the rear end of the rectangular plate and above the adjustment plate, a rectangular groove inside the rectangular plate, a second rectangular plate extending into the rectangular groove fixedly installed on the inner side of the adjustment plate, a limit plate fixedly installed at the front end of the second rectangular plate, a connecting plate located inside the adjustment groove fixedly installed below the adjustment plate, a cylinder fixedly installed inside the adjustment groove, a telescopic rod fixedly installed at the left end of the cylinder, a pressure sensor fixedly installed at the front end of the telescopic rod, a sealing gasket fixedly installed at the front end of the pressure sensor, and the connecting plate fixedly connected to the front end of the sealing gasket.

[0006] As a preferred technical solution of this utility model, the testing mechanism includes side plates that are respectively fixedly installed on the upper sides of the base. A top plate is fixedly installed on the upper side plate. A disc is rotatably installed below the top plate. A round block is fixedly installed below the disc. A long plate is movably installed below the disc. A long groove is formed on the upper surface of the long plate. The round block is movably connected inside the long groove. Vertical plates are fixedly installed below both ends of the long plate. Friction wheels are rotatably installed between the inner sides of the two vertical plates.

[0007] As a preferred embodiment of this utility model, a second servo motor is fixedly installed above the testing mechanism, and the output end of the second servo motor is fixedly connected to the top of the disk.

[0008] As a preferred technical solution of this utility model, a slot is provided on the inner side of the left side plate, and a servo motor is fixedly installed on the outer side of the left vertical plate inside the slot. The output end of the servo motor is fixedly connected to the left end of the friction wheel.

[0009] As a preferred technical solution of this utility model, the inner sides of the side plates at both ends are provided with sliding grooves, and two sets of connecting shafts located inside the sliding grooves are fixedly installed at both ends of the long plate. Rollers are rotatably installed at the front end of the connecting shafts, and the rollers are in contact with the bottom side of the sliding grooves.

[0010] As a preferred embodiment of the present invention, the clamping assembly includes a clamping frame, a placement groove is provided on the front side of the clamping frame, a clamping plate is movably installed inside the placement groove, a threaded rod threadedly sleeved on the upper side of the clamping plate is rotatably installed on the upper side of the clamping plate, and a knob is fixedly installed on the upper side of the threaded rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model uses clamping plates to clamp and fix both ends of the waterproof cloth, and then activates the limiting plate to stretch the waterproof cloth. A pressure sensor detects the pressure value of the telescopic rod. When the value reaches the set value, the telescopic rod stops moving. Compared with traditional waterproof cloth abrasion resistance testing devices, this waterproof cloth abrasion resistance testing device uses a pressure sensor to detect the stretching value, which facilitates the stretching operation of the waterproof cloth, effectively eliminates collapse and wrinkles, controls the tension, and facilitates abrasion resistance testing.

[0013] 2. This utility model activates servo motor one and servo motor two. Servo motor one drives the friction wheel to rotate and rub the waterproof cloth. At the same time, servo motor two drives the friction wheel to move back and forth, so that the friction wheel rotates and rubs back and forth on the surface of the waterproof cloth. Compared with the traditional waterproof cloth abrasion resistance testing device, this waterproof cloth abrasion resistance testing device uses the friction wheel to rotate and rub back and forth on the surface of the waterproof cloth. The pressure distribution on the material surface changes dynamically during the rotation of the friction wheel, which is closer to the situation of uneven local stress in actual use, thus improving the testing effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the clamping mechanism of this utility model;

[0016] Figure 3 This is a vertical cross-sectional view of the clamping mechanism of this utility model;

[0017] Figure 4 for Figure 3 A magnified schematic diagram of the local structure at point A;

[0018] Figure 5 for Figure 3 A magnified view of the structure at point B in the middle;

[0019] Figure 6 for Figure 3 A magnified schematic diagram of the local structure at point C;

[0020] Figure 7 This is a schematic diagram of the disc of this utility model;

[0021] Figure 8 This is a schematic diagram of the friction wheel of this utility model.

[0022] In the diagram: 1. Base; 2. Clamping mechanism; 201. Rectangular plate; 202. Adjusting plate; 203. Fixture frame; 204. Placement slot; 205. Clamping plate; 206. Threaded rod; 207. Knob; 208. Rectangular slot; 209. Rectangular plate two; 210. Limiting plate; 211. Cylinder; 212. Telescopic rod; 213. Connecting plate; 214. Pressure sensor; 215. Sealing gasket; 3. Testing mechanism; 301. Side plate; 302. Top plate; 303. Disc; 304. Circular block; 305. Empty slot; 306. Sliding groove; 307. Long plate; 308. Long slot; 309. Connecting shaft; 310. Roller; 311. Vertical plate; 312. Friction wheel; 313. Servo motor one; 4. Adjusting slot; 5. Servo motor two. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 8 As shown, this utility model provides a waterproof fabric abrasion resistance testing device, including a base 1, a clamping mechanism 2 above the base 1, and a testing mechanism 3 located outside the clamping mechanism 2 above the base 1. An adjustment groove 4 is formed on the surface of the base 1. The clamping mechanism 2 includes a rectangular plate 201 fixedly installed above the base 1, an adjustment plate 202 movably installed at the front end of the rectangular plate 201, and clamp frames 203 fixedly installed above the rear end of the rectangular plate 201 and above the adjustment plate 202. A rectangular groove 208 is formed inside the rectangular plate 201. A rectangular plate 209 extending into the rectangular groove 208 is fixedly installed on the inner side of the adjusting plate 202. A limit plate 210 is fixedly installed at the front end of the rectangular plate 209. A connecting plate 213 located inside the adjusting groove 4 is fixedly installed below the adjusting plate 202. A cylinder 211 is fixedly installed inside the adjusting groove 4. A telescopic rod 212 is fixedly installed at the left end of the cylinder 211. A pressure sensor 214 is fixedly installed at the front end of the telescopic rod 212. A sealing gasket 215 is fixedly installed at the front end of the pressure sensor 214. The connecting plate 213 is fixedly connected to the front end of the sealing gasket 215.

[0025] The fixture assembly includes a fixture frame 203. A placement groove 204 is provided on the front side of the fixture frame 203. A clamping plate 205 is movably installed inside the placement groove 204. A threaded rod 206, which is threaded and sleeved on the inside of the fixture frame 203, is rotatably installed on the top of the clamping plate 205. A knob 207 is fixedly installed on the top of the threaded rod 206.

[0026] The waterproof cloth is inserted sequentially through the left end of the placement groove 204, passing through the other end of the placement groove 204. Then, the knob 207 is rotated, causing the threaded rod 206 to rotate and move downwards. The threaded rod 206 drives the clamping plate 205 downwards to compress the waterproof cloth, clamping and fixing both ends of the waterproof cloth. Then, the cylinder 211 is activated, causing it to push the connecting plate 213 outwards inside the adjusting groove 4 via the telescopic rod 212. This causes the connecting plate 213 to drive the adjusting plate 204. 2. The rectangular plate 209 moves outward, causing the limiting plate 210 to move outward within the rectangular groove 208, limiting the adjustment plate 202. At this time, the clamp frames 203 at both ends stretch the waterproof fabric. When stretched to a certain distance, the waterproof fabric is flattened. When the telescopic rod 212 continues to apply pressure, the pressure sensor 214 detects the pressure value of the telescopic rod 212. When the value reaches the set value, the pressure sensor 214 releases an electrical signal to the PLC, and the PLC controls the telescopic rod 212 to stop moving via the control board. Compared with traditional waterproof fabric abrasion resistance testing devices, this waterproof fabric abrasion resistance testing device uses the pressure sensor 214 to detect the stretching value, facilitating the stretching operation of the waterproof fabric, effectively eliminating collapse and wrinkles, and facilitating abrasion resistance testing.

[0027] The testing mechanism 3 includes side plates 301 fixedly installed on the upper sides of the base 1, a top plate 302 fixedly installed on the top of the side plates 301, a disc 303 rotatably installed below the top plate 302, a round block 304 fixedly installed below the disc 303, a long plate 307 movably installed below the disc 303, a long groove 308 is formed on the upper surface of the long plate 307, the round block 304 is movably connected inside the long groove 308 and adapted to the width of the long groove 308, vertical plates 311 are fixedly installed below both ends of the long plate 307, and friction wheels 312 are rotatably installed between the inner sides of the two vertical plates 311.

[0028] A slot 305 is formed on the inner side of the left side plate 301. A servo motor 313 is fixedly installed inside the slot 305 on the outer side of the left vertical plate 311. The output end of the servo motor 313 is fixedly connected to the left end of the friction wheel 312. When the servo motor 313 is started, it drives the friction wheel 312 to rotate and rub the waterproof cloth. When the long plate 307 moves back and forth, the servo motor 313 moves back and forth inside the slot 305. A sliding groove 306 is formed on the inner side of both end side plates 301. Two sets of connecting shafts 309 are fixedly installed inside the sliding grooves 306 at both ends of the long plate 307. Rollers 310 are rotatably installed at the front end of the connecting shafts 309 and fit against the bottom side of the sliding groove 306. The long plate 307 moves back and forth, causing the connecting shaft 309 to move inside the slide groove 306, thereby causing the roller 310 to roll inside the slide groove 306, which supports the long plate 307.

[0029] A servo motor 2, 5, is fixedly mounted on top of the testing mechanism 3, and the output end of the servo motor 2, 5, is fixedly connected to the top of the disk 303. When the servo motor 2, 5 is started, it drives the disk 303 to rotate, thereby causing the circular block 304 to follow the rotation of the disk 303 in a circular motion.

[0030] During the stretching process of the waterproof fabric, it comes into contact with the friction wheel 312 and is compressed. Then, servo motor 5 and servo motor 313 are activated, causing servo motor 313 to drive the friction wheel 312 to rotate and rub the waterproof fabric. At the same time, servo motor 5 drives the disc 303 to rotate, and the disc 303 drives the block 304 to move in a circular motion, causing it to move left and right relative to the long plate 307 inside the long groove 308, pushing the long plate 307 to move back and forth. The long plate 307 drives the friction wheel 312 to move back and forth through the vertical plate 311, so that the friction wheel 312 rotates and rubs back and forth on the surface of the waterproof fabric. Compared with the traditional waterproof fabric abrasion resistance testing device, this waterproof fabric abrasion resistance testing device uses the friction wheel 312 to rotate and rub back and forth on the surface of the waterproof fabric. The pressure distribution on the material surface changes dynamically during the rotation of the friction wheel, which is closer to the situation of uneven local stress in actual use, thus expanding the test area and improving the test effect.

[0031] Working principle and usage process of this utility model:

[0032] The waterproof cloth is passed through the left end of the placement groove 204, then through the other end of the placement groove 204. The knob 207 is then rotated, causing the threaded rod 206 to rotate downwards. The threaded rod 206 moves the clamping plate 205 downwards, squeezing the waterproof cloth. Then, the cylinder 211 is activated, causing it to push the connecting plate 213 outwards within the adjusting groove 4 via the telescopic rod 212. This causes the connecting plate 213 to move the adjusting plate 202 outwards, thereby causing the rectangular plate 209 to... Inside the rectangular groove 208, the limiting plate 210 moves outward to limit the adjusting plate 202. At this time, the clamp frames 203 at both ends stretch the waterproof cloth. When it is stretched to a certain distance, the waterproof cloth is in a flat state. When the telescopic rod 212 continues to apply pressure, the pressure sensor 214 detects the pressure value of the telescopic rod 212. When the value reaches the set value, the pressure sensor 214 releases an electrical signal to the PLC. The PLC controls the telescopic rod 212 to stop moving through the control board, thereby eliminating collapse and wrinkles.

[0033] During the stretching process of the waterproof cloth, the bottom surface of the friction wheel 312 is lower than the bottom surface of the placement groove 204. Therefore, the waterproof cloth will come into contact with the friction wheel 312 and be squeezed. Then, the servo motor 5 and the servo motor 313 are started, so that the servo motor 313 drives the friction wheel 312 to rotate and rub the waterproof cloth. At the same time, the servo motor 5 drives the disc 303 to rotate, and the disc 303 drives the block 304 to make a circular motion, so that it moves left and right inside the long groove 308, pushing the long plate 307 to drive the friction wheel 312 to move back and forth. Thus, the friction wheel 312 rotates and rubs back and forth on the surface of the waterproof cloth. The pressure distribution on the material surface of the friction wheel 312 changes dynamically during the rotation, which is closer to the situation of uneven local force in actual use. The cumulative number of friction cycles before the material is damaged and the percentage reduction of mass per unit area after friction are counted to judge the wear resistance of the waterproof cloth, thus improving the test effect. The specific data statistics and calculation can be processed using existing technology methods, which will not be elaborated here.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tarpaulin abrasion resistance testing device comprising a base (1) characterised in that: A clamping mechanism (2) is provided above the base (1), and a testing mechanism (3) is provided above the base (1) on the outside of the clamping mechanism (2). An adjustment groove (4) is provided on the surface of the base (1). The clamping mechanism (2) includes a rectangular plate (201) fixedly installed above the base (1). An adjustment plate (202) is movably installed at the front end of the rectangular plate (201). A clamping assembly is fixedly installed above the rear end of the rectangular plate (201) and above the adjustment plate (202). A rectangular groove (208) is provided inside the rectangular plate (201). An extension extending to the rectangular groove is fixedly installed on the inner side of the adjustment plate (202). A rectangular plate two (209) is located inside the groove (208). A limit plate (210) is fixedly installed at the front end of the rectangular plate two (209). A connecting plate (213) located inside the adjustment groove (4) is fixedly installed below the adjustment plate (202). A cylinder (211) is fixedly installed inside the adjustment groove (4). A telescopic rod (212) is fixedly installed at the left end of the cylinder (211). A pressure sensor (214) is fixedly installed at the front end of the telescopic rod (212). A sealing gasket (215) is fixedly installed at the front end of the pressure sensor (214). The connecting plate (213) is fixedly connected to the front end of the sealing gasket (215).

2. A tarpaulin abrasion resistance testing device according to claim 1, wherein: The testing mechanism (3) includes side plates (301) fixedly installed on the upper sides of the base (1), a top plate (302) fixedly installed on the upper side of the side plates (301), a disc (303) rotatably installed below the top plate (302), a round block (304) fixedly installed below the disc (303), a long plate (307) movably installed below the disc (303), a long groove (308) is opened on the upper surface of the long plate (307), the round block (304) is movably connected inside the long groove (308), and vertical plates (311) are fixedly installed below both ends of the long plate (307). Friction wheels (312) are rotatably installed between the inner sides of the two vertical plates (311).

3. A tarpaulin abrasion resistance testing device according to claim 2, wherein: A second servo motor (5) is fixedly installed above the test mechanism (3), and the output end of the second servo motor (5) is fixedly connected above the disk (303).

4. A tarpaulin abrasion resistance testing device according to claim 2, wherein: A slot (305) is provided on the inner side of the left side plate (301), and a servo motor (313) located inside the slot (305) is fixedly installed on the outer side of the left vertical plate (311). The output end of the servo motor (313) is fixedly connected to the left end of the friction wheel (312).

5. A tarpaulin abrasion resistance testing device according to claim 2, wherein: The inner sides of the side plates (301) at both ends are provided with grooves (306). Two sets of connecting shafts (309) located inside the grooves (306) are fixedly installed at both ends of the long plate (307). Rollers (310) are rotatably installed at the front end of the connecting shafts (309). The rollers (310) are in contact with the bottom side of the grooves (306).

6. A tarpaulin abrasion resistance testing device according to claim 1, wherein: The clamp assembly comprises a clamp frame (203), a placing groove (204) is formed in the front side of the clamp frame (203), a clamping plate (205) is movably installed inside the placing groove (204), a threaded rod (206) is rotatably installed above the clamping plate (205) and is screwed into the inner side of the clamp frame (203), and a rotating knob (207) is fixedly installed above the threaded rod (206).

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