A testing institution for the abrasion resistance of gray yarn fabric

Abstract

This invention relates to the field of fabric testing technology and discloses a testing mechanism for the abrasion resistance of gray yarn fabric. The mechanism includes a box-shaped base with a boss fixedly installed at the center of its top. A butterfly plate is positioned above the boss, and a wobbling drive component is located at the bottom of the butterfly plate. Two rows of abrasive support components are fixedly installed at the bottom of the butterfly plate, and two sets of abrasive replacement components are mounted on the butterfly plate. A support plate is slidably connected to the side of the boss, and two rows of lower clamping components are rotatably connected to the support plate. The lower clamping components are threadedly connected to upper clamping components. The clamping cover is placed inside the clamping ring, and then the gray yarn fabric to be tested is placed inside the clamping cover. The clamping cover is then driven to rotate by a screwing component, causing the clamping cover and the connecting plate to be spirally connected. The elasticity of spring three ensures the clamping force of the clamping plate and the inner wall of the circular groove two on the gray yarn fabric, thereby facilitating the replacement of the gray yarn fabric to be tested.

Description

Technical Field

[0001] This invention relates to the field of fabric testing technology, specifically to a testing mechanism for the abrasion resistance of gray yarn fabric. Background Technology

[0002] Gray yarn typically refers to yarn that has undergone specific processing to achieve a gray hue. This type of yarn can be made from a single fiber or a blend of multiple fibers. The abrasion resistance of gray yarn fabrics is generally tested using the Martindale method. This involves repeatedly rubbing the sample against the surface of a standard abrasive (usually silk or cotton cloth) while applying pressure with weights to determine the sample's abrasion resistance.

[0003] Chinese patent application date: July 2, 2024, publication number: CN118424937B, discloses a fabric abrasion resistance testing device, including a machine body, a friction table fixedly mounted on the upper end of the machine body, a cam rotatably mounted on the upper end of the machine body, and a drive motor installed inside the machine body. This invention utilizes the cooperation of a worm gear and a worm shaft, allowing the user to drive the worm gear by rotating the worm shaft, which in turn drives the gear ring to rotate relative to the support rod. This causes the gear ring to move the pressure plate up and down along the support rod. It has low manufacturing cost, requires no electricity, saves energy, and reduces testing costs. Furthermore, the transmission between the worm gear and the worm shaft is unidirectional, preventing the pressure plate located above from driving the gear ring to rotate helically along the support rod under gravity, thus ensuring the pressure plate remains stably positioned above the support rod. No additional fixing device is needed to secure the pressure plate above, further reducing production costs. This effectively guarantees the stability and reliability of the invention.

[0004] While this technical solution allows for convenient cutting and fixing of the sample, it requires the preparation of a standard abrasive. To ensure the uniformity of the standard abrasive surface, the standard abrasive needs to be replaced after each test. Frequent replacement of the standard abrasive makes the operation cumbersome, thus warranting further improvement. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a testing mechanism for the abrasion resistance of gray yarn fabrics, which has advantages such as easy replacement of standard abrasives and test samples, thus solving the problems of frequent standard abrasive replacements and cumbersome operation.

[0006] To achieve the aforementioned purpose of facilitating the replacement of standard abrasives and samples, the present invention provides the following technical solution: a test mechanism for the abrasion resistance of gray yarn fabric, comprising a box-shaped base, a boss fixedly installed at the center of the top of the box-shaped base, a butterfly plate arranged above the boss, a wobbling drive component arranged at the bottom of the butterfly plate, the wobbling drive component being fixedly installed on the top of the boss; two rows of abrasive support components fixedly installed at the bottom of the butterfly plate, two sets of abrasive replacement components arranged on the butterfly plate; a support plate slidably connected to the side of the boss, two rows of lower clamping components rotatably connected to the support plate, the lower clamping components being threadedly connected to upper clamping components, and two rows of screwing components arranged on the box-shaped base.

[0007] Preferably, the top of the butterfly board has two X-axis grooves that are distributed horizontally, and the center of the top of the butterfly board has a Z-axis groove that is perpendicular to each other. Each of the four corners of the top of the butterfly board has a through-slot. The wobbling drive includes three motors fixedly mounted on the top of the boss. A turntable is fixedly mounted on the top output end of each motor. A push rod is fixedly mounted on the eccentric part of the top of the turntable. The three push rods are slidably connected in the two X-axis grooves and the Z-axis groove, respectively. A baffle is fixedly mounted on the top of each push rod, and the baffle fits against the top of the butterfly board.

[0008] Preferably, each of the friction agent supports includes a U-shaped frame, with two limiting plates fixedly installed on both the left and right sides of the U-shaped frame. Clamping rods are provided on both the left and right sides of the U-shaped frame, and the clamping rods are rotatably connected to the limiting plates. A circular groove is opened through the bottom of the U-shaped frame. A horizontal plate is fixedly installed between the left and right inner sidewalls of the U-shaped frame. A threaded hole is opened at the center of the horizontal plate. A threaded rod is threadedly connected to the horizontal plate through the threaded hole. A pressure plate is rotatably connected to the bottom of the threaded rod. The pressure plate is frustoconical and fits the circular groove. Felt is clamped between the inner wall of the circular groove and the circumferential surface of the pressure plate.

[0009] Preferably, each set of friction agent replacement components includes a left support fixedly installed on the top left side of the butterfly plate. The top of the left support has a U-shaped groove, and a waste roller is inserted into the U-shaped groove. A motor is fixedly installed at one end of the waste roller. Each set of friction agent replacement components also includes a right support fixedly installed on the top right side of the butterfly plate. The top of the right support has a U-shaped groove, and a friction agent roller is inserted into the U-shaped groove. Friction discs are fixedly installed at both ends of the friction agent roller. A rotation suppression component is fixedly installed on the right support, and the rotation suppression component is attached to the circumferential surface of the friction disc.

[0010] Preferably, the rotation suppression component includes a mounting cover fixedly mounted on the right support. A friction plate is inserted into the opening of the mounting cover. A spring is fixedly installed between the friction plate and the inner wall of the mounting cover. The friction plate has an arc-shaped surface facing the friction disk. A bolt is threaded to the front side of the mounting cover and fits against the front side of the friction plate. A groove is formed on the arc-shaped surface of the friction plate. A strip is inserted into the groove. A spring is fixedly installed between the strip and the inner wall of the groove. One end of the strip located outside the groove is V-shaped. V-shaped grooves are arrayed on the circumferential surface of the friction disk. The V-shaped end of the strip is inserted into the V-shaped groove of the friction disk.

[0011] Preferably, a cylinder is fixedly installed at the bottom of each of the four corners of the pallet, and the cylinder is fixedly mounted on the box-shaped base. Two rows of clearance slots are opened through the pallet, with three clearance slots in each row. Each lower clamping assembly includes a hollow disk disposed in the clearance slot. A rotating shaft is fixedly installed on the outer wall of the front and rear sides of the hollow disk. The other end of the rotating shaft is rotatably connected to the inner wall of the clearance slot. A gear is fixedly installed on the rotating shaft on the front side. A flipping drive is provided at the bottom of the pallet, and the flipping drive is used to drive the hollow disk to flip.

[0012] Preferably, the flipping drive includes four fixed posts fixedly mounted on the bottom of the tray, the four fixed posts being arranged in a matrix. Slides are provided on the lower left and right sides of the tray, and each slide has two straight grooves through it. The slides are slidably connected to the fixed posts through the straight grooves. Two rack plates are fixedly mounted between two slides. The top of the rack plates is provided with a grid of teeth, and the rack plates are engaged with the bottom of the gears through the grid teeth. A second cylinder is fixedly mounted on the bottom left side of the tray, and the output end of the second cylinder is fixedly mounted on the slide.

[0013] Preferably, a pressure sensor is fixedly installed at the center of the top wall of the hollow disk, a docking plate is provided below the hollow disk, a sliding block is fixedly installed on the top of the docking plate, the sliding block is slidably connected to the bottom of the hollow disk, a pressure plate is fixedly installed on the top of the sliding block, and the pressure plate is located inside the hollow disk; two guide grooves are opened at the bottom of the docking plate, a sliding column is slidably connected in the guide groove, a spring is fixedly installed between the top of the sliding column and the top wall of the guide groove, and a clamping plate is fixedly installed at the bottom of the two springs.

[0014] Preferably, the upper clamping assembly includes a clamping cover threaded to the outside of the docking plate. The inner wall of the clamping cover and the circumferential surface of the docking plate are respectively provided with threads. A circular groove II is opened through the center of the clamping cover. The inner diameter of the circular groove II gradually decreases from top to bottom. Two protrusions I are fixedly installed on the outer wall of the clamping cover.

[0015] Preferably, each of the screwing components includes a pad, a hoop fixedly installed on the top of the pad, two arched portions integrally formed on the hoop, the arched portions being adapted to and inserted into a protrusion 1, a connecting shaft fixedly installed on the bottom of the pad, a protrusion 2 fixedly installed on the circumferential surface of the connecting shaft, a washer fixedly installed at the bottom of the connecting shaft and the protrusion 2, a spring 4 being attached to the bottom of the washer, and the bottom end of the spring 4 being fixedly installed on the bottom wall of the box-shaped base; a drive wheel is sleeved on the outer side of the connecting shaft and the protrusion 2, the drive wheel being rotatably connected to the box-shaped base, a driven sprocket fixedly installed on the circumferential surface of the drive wheel, three driven sprockets in the same row being connected by a ring chain, a motor 3 fixedly installed on the bottom wall of the box-shaped base, a drive sprocket fixedly installed at the output end of the motor 3, and the drive sprocket meshing with the ring chain.

[0016] Compared with the prior art, the present invention provides a testing mechanism for the abrasion resistance of gray yarn fabric, which has the following beneficial effects:

[0017] 1. The abrasion resistance testing mechanism for gray yarn fabric involves placing the clamping cover inside the hoop, then placing the gray yarn fabric to be tested inside the clamping cover; then driving the clamping cover to rotate through the screwing assembly, so that the clamping cover and the docking plate are spirally connected together. The elasticity of the spring three ensures the clamping force of the clamping plate and the inner wall of the circular groove two on the gray yarn fabric, thus completing the installation of the gray yarn fabric and facilitating the replacement of the gray yarn fabric to be tested.

[0018] 2. This abrasion resistance testing mechanism for gray yarn fabric uses a second motor to drive a waste roller to rotate, winding up the used standard abrasive and moving it across the surface of a U-shaped frame. Unused standard abrasive moves to the bottom of the U-shaped frame. During this process, the friction between the friction plate and the friction disc, along with the inserts securing themselves in the V-groove of the friction disc, ensures rotational resistance between the abrasive roller and the friction disc, preventing excessive release of the standard abrasive and keeping the standard abrasive at the bottom of the U-shaped frame taut. When the standard abrasive on the roller is exhausted, the bolts are unscrewed, and the friction plate is pushed to the left to remove the roller and replace it with a new one. Similarly, the second motor can be removed from the left support, and the waste roller can be replaced, facilitating the replacement of the standard abrasive at the bottom of the U-shaped frame.

[0019] 3. The abrasion resistance testing mechanism for gray yarn fabric, when clamping and fixing the gray yarn fabric through the lower clamping assembly and the upper clamping assembly, extends the output end of cylinder two, driving the slide and rack plate to move to the right, driving the gear and hollow disk to rotate half a turn, so that the clamping disk rotates to the bottom of the hollow disk. Then, the output end of cylinder one retracts, driving the support plate to move downward, and the hollow disk moves downward simultaneously. The clamping disk is inserted into the interior of circular groove two, so that the pad and the clamping disk clamp the gray yarn fabric in the vertical direction, and keep the gray yarn fabric at the opening of circular groove two flat under the clamping action of the pad and the clamping disk, thus ensuring that the abrasion resistance testing process of gray yarn fabric is more reliable.

[0020] 4. In this abrasion resistance testing mechanism for gray yarn fabric, after the lower and upper clamping components clamp and fix the gray yarn fabric, the hollow disc flips so that the clamping cover is above the hollow disc. Under the action of gravity, the pressure plate adheres to the surface of the pressure sensor, squeezing the pressure sensor. At this time, the pressure sensor receives the initial pressure. Then, through the output end of cylinder one, it continues to extend, thereby driving the gray yarn fabric at the second circular groove to adhere to the standard friction agent at the bottom of the U-shaped frame. At this time, the pressure sensor receives an increased pressure, which is the dynamic pressure. Thus, the difference between the initial pressure and the dynamic pressure reflects the pressure between the gray yarn fabric and the standard friction agent. Compared with adjusting the pressure between the gray yarn fabric and the standard friction agent by using weights, the adjustment process is convenient and quick. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a gray yarn fabric abrasion resistance testing mechanism proposed in this invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the shaking drive component of a gray yarn fabric abrasion resistance testing mechanism proposed in this invention.

[0023] Figure 3 This is a three-dimensional structural diagram of the butterfly plate, friction support, and friction replacement assembly of a gray yarn fabric abrasion resistance testing mechanism proposed in this invention.

[0024] Figure 4 This is a three-dimensional structural diagram of the friction support component of a gray yarn fabric abrasion resistance testing mechanism proposed in this invention.

[0025] Figure 5 This is a three-dimensional structural diagram of the rotation suppression component of a gray yarn fabric abrasion resistance testing mechanism proposed in this invention;

[0026] Figure 6 This is a three-dimensional structural diagram of the support plate of a gray yarn fabric abrasion resistance testing mechanism proposed in this invention.

[0027] Figure 7This is a three-dimensional structural diagram of the lower clamping component, upper clamping component, and screwing component of a gray yarn fabric abrasion resistance testing mechanism proposed in this invention.

[0028] Figure 8 This is a three-dimensional exploded view of the lower clamping component, upper clamping component, and screwing component of the abrasion resistance testing mechanism for gray yarn fabric proposed in this invention.

[0029] Figure 9 This is a front view cross-sectional structural diagram of the lower clamping component, upper clamping component, and twisting component of a gray yarn fabric abrasion resistance testing mechanism proposed in this invention.

[0030] In the diagram: 100, box-shaped base; 200, butterfly plate; 300, wobbling drive component; 400, friction agent support component; 500, friction agent replacement assembly; 600, tray; 700, lower clamping assembly; 800, upper clamping assembly; 900, screwing assembly;

[0031] 101. Boss; 201. X-axis groove; 202. Z-axis groove; 203. Belt groove; 301. Motor 1; 302. Turntable; 303. Push rod; 304. Baffle;

[0032] 401. U-shaped frame; 402. Limiting plate; 403. Clamping rod; 404. Circular groove one; 405. Horizontal plate; 406. Threaded rod; 407. Pressure plate; 408. Felt;

[0033] 501. Left support; 502. U-shaped groove one; 503. Waste roller; 504. Motor two; 505. Right support; 506. U-shaped groove two; 507. Friction roller; 508. Friction disc; 509. Rotation suppression component;

[0034] 5091. Mounting cover; 5092. Friction plate; 5093. Spring 1; 5094. Bolt; 5095. Slide groove; 5096. Insert bar; 5097. Spring 2;

[0035] 601. Cylinder 1; 602. Clearance groove; 603. Fixed column; 604. Slide; 605. Straight groove; 606. Rack plate; 607. Cylinder 2;

[0036] 701. Hollow disc; 702. Rotating shaft; 703. Gear; 704. Pressure sensor; 705. Connecting disc; 706. Sliding block; 707. Pressure plate; 708. Guide groove; 709. Sliding column; 710. Spring three; 711. Clamping disc;

[0037] 801. Clamping cover; 802. Circular groove two; 803. Raised strip one;

[0038] 901. Pad; 902. Hoop; 903. Arched part; 904. Connecting shaft; 905. Second protrusion; 906. Washer; 907. Fourth spring; 908. Drive wheel; 909. Driven sprocket; 910. Ring chain; 911. Third motor; 912. Drive sprocket. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Please see Figure 1 and Figure 7 A test mechanism for the abrasion resistance of gray yarn fabric includes a box-shaped base 100. A boss 101 is fixedly installed at the center of the top of the box-shaped base 100. A butterfly plate 200 is arranged above the boss 101. A shaking drive component 300 is arranged at the bottom of the butterfly plate 200 and is fixedly installed on the top of the boss 101. Two rows of friction agent support components 400 are fixedly installed at the bottom of the butterfly plate 200. Two sets of friction agent replacement components 500 are arranged on the butterfly plate 200. A support plate 600 is slidably connected to the side of the boss 101. Two rows of lower clamping components 700 are rotatably connected to the support plate 600. The lower clamping components 700 are threadedly connected to the upper clamping components 800. Two rows of screwing components 900 are arranged on the box-shaped base 100.

[0041] Please see Figure 2 Two X-axis grooves 201 are provided through the top of the butterfly plate 200, and the two X-axis grooves 201 are distributed from left to right. A Z-axis groove 202 is provided through the center of the top of the butterfly plate 200. The X-axis grooves 201 and Z-axis grooves 202 are perpendicular to each other. A belt-passing groove 203 is provided through the four corners of the top of the butterfly plate 200. The belt-passing groove 203 is used for the standard friction agent to pass through. In this embodiment, the standard friction agent can be silk cloth or cotton cloth.

[0042] Please see Figure 2The shaking drive unit 300 includes three motors 301 fixedly mounted on the top of the boss 101. A turntable 302 is fixedly mounted on the top output end of each motor 301. A push rod 303 is fixedly mounted on the eccentric part of the top of the turntable 302. The three push rods 303 are slidably connected in two X-axis grooves 201 and two Z-axis grooves 202, respectively. A baffle 304 is fixedly mounted on the top of each push rod 303, and the baffle 304 is attached to the top of the butterfly plate 200. When the motors 301 drive the turntable 302 to rotate, the push rods 303 perform circular motion. While sliding in the X-axis grooves 201 and Z-axis grooves 202, the push rods 303 push the butterfly plate 200 to shake.

[0043] Please see Figures 3-4 Each row of friction support members 400 consists of three members, each including a U-shaped frame 401. Standard friction agent released from the friction agent replacement assembly 500 passes through the threading groove 203 and adheres to the bottom and left and right sides of the U-shaped frame 401. When the butterfly plate 200 shakes, the standard friction agent at the bottom of the U-shaped frame 401 rubs against the gray yarn fabric to test its abrasion resistance. Two limiting plates 402 are fixedly installed on the left and right sides of the U-shaped frame 401 to limit the standard friction agent and prevent it from shifting in the front-to-back direction.

[0044] Clamping rods 403 are provided on both the left and right sides of the U-shaped frame 401, and the clamping rods 403 are rotatably connected to the limiting plate 402. The clamping rods 403 and the side of the U-shaped frame 401 cooperate to clamp the standard friction agent. A circular groove 404 is opened through the bottom of the U-shaped frame 401. A horizontal plate 405 is fixedly installed between the left and right inner side walls of the U-shaped frame 401. A threaded hole is opened in the center of the horizontal plate 405. A threaded rod 406 is threadedly connected to the horizontal plate 405 through the threaded hole. A pressure plate 407 is rotatably connected to the bottom of the threaded rod 406. The pressure plate 407 is frustoconical and fits the circular groove 404. A felt 408 is clamped between the inner wall of the circular groove 404 and the circumference of the pressure plate 407. The felt 408 provides flexible support for the standard friction agent at the bottom of the U-shaped frame 401.

[0045] Please see Figure 3 and Figure 5 Each friction agent replacement assembly 500 includes a left support 501 fixedly installed on the top left side of the butterfly plate 200. A U-shaped groove 502 is formed on the top of the left support 501, and a waste roller 503 is inserted into the U-shaped groove 502. A motor 504 is fixedly installed at one end of the waste roller 503. The motor 504 is fixed to the left support 501 with bolts. Used standard friction agent is fixed on the waste roller 503, and the motor 504 drives the waste roller 503 to rotate, thus winding up the used standard friction agent.

[0046] Each friction agent replacement assembly 500 also includes a right support 505 fixedly installed on the top right side of the butterfly plate 200. A U-shaped groove 506 is formed on the top of the right support 505, into which a friction agent roller 507 is inserted for easy replacement. Unused standard friction agent is wound onto the surface of the friction agent roller 507. Friction discs 508 are fixedly installed at both ends of the friction agent roller 507. A rotation inhibition member 509 is fixedly installed on the right support 505, and the rotation inhibition member 509 fits against the circumferential surface of the friction disc 508. The frictional force exerted by the rotation inhibition member 509 on the friction disc 508 creates resistance when the friction agent roller 507 and the friction disc 508 rotate, thus maintaining the standard friction force between the friction agent roller 507 and the waste roller 503.

[0047] The rotation suppression component 509 includes a mounting cover 5091 fixedly mounted on the right support 505. A friction plate 5092 is inserted into the opening of the mounting cover 5091. A spring 5093 is fixedly installed between the friction plate 5092 and the inner wall of the mounting cover 5091. The friction plate 5092 has an arc-shaped surface facing the friction disk 508. A bolt 5094 is threadedly connected to the front side of the mounting cover 5091, and the bolt 5094 fits against the front side of the friction plate 5092. The elasticity of the spring 5093 keeps the friction plate 5092 tightly pressed against the surface of the friction disk 508, thus suppressing the rotation of the friction disk 508.

[0048] A groove 5095 is formed on the arc-shaped surface of the friction plate 5092. A strip 5096 is inserted into the groove 5095. A spring 5097 is fixedly installed between the strip 5096 and the inner wall of the groove 5095. One end of the strip 5096 located outside the groove 5095 is V-shaped. V-shaped grooves are arrayed on the circumferential surface of the friction disc 508. The V-shaped end of the strip 5096 is inserted into the V-shaped groove of the friction disc 508. This further suppresses the rotation of the friction disc 508.

[0049] Please see Figures 6-8 Each of the four corners of the pallet 600 is fixedly equipped with a cylinder 601, which is fixedly mounted on the box-shaped base 100. Two rows of clearance slots 602 are formed through the pallet 600, with three slots in each row. Each clearance slot 602 corresponds to a U-shaped frame 401 and is located directly below the U-shaped frame 401. Each lower clamping assembly 700 includes a hollow disc 701 disposed within a clearance slot 602. A rotating shaft 702 is fixedly mounted on the outer walls of both the front and rear sides of the hollow disc 701. The other end of the rotating shaft 702 is rotatably connected to the inner wall of the clearance slot 602. A gear 703 is fixedly mounted on the front rotating shaft 702. A tilting drive is provided at the bottom of the pallet 600 to drive the hollow disc 701 to tilt.

[0050] The tilting drive includes four fixed posts 603 fixedly mounted on the bottom of the support plate 600, arranged in a matrix. Slides 604 are provided on the lower left and right sides of the support plate 600. Each slide 604 has two through-cut straight grooves 605, allowing it to slide slidably relative to the support plate 600. Two rack plates 606 are fixedly mounted between the two slides 604, forming a square frame structure. The top of the rack plates 606 has an array of locking teeth that mesh with the bottom of the gear 703. A second cylinder 607 is fixedly mounted on the bottom left side of the support plate 600, with its output end fixedly mounted on the slide 604. The cylinder 607 extends and retracts, causing the slide 604 and rack 606 to move left and right, which in turn drives the gear 703 to rotate, thereby causing the hollow disc 701 to rotate. Each time the gear 703 rotates half a turn, the hollow disc 701 flips.

[0051] Please see Figures 8-9 A pressure sensor 704 is fixedly installed at the center of the top wall of the hollow disk 701. A docking disk 705 is provided below the hollow disk 701. A sliding block 706 is fixedly installed on the top of the docking disk 705. The sliding block 706 is slidably connected to the bottom of the hollow disk 701. A pressure applying disk 707 is fixedly installed on the top of the sliding block 706. The pressure applying disk 707 is located inside the hollow disk 701. When the pressure applying disk 707 is attached to the bottom wall of the hollow disk 701, it does not contact the pressure sensor 704. Two guide grooves 708 are formed at the bottom of the docking disk 705. A sliding column 709 is slidably connected in the guide grooves 708. A spring 710 is fixedly installed between the top of the sliding column 709 and the top wall of the guide groove 708. A clamping disk 711 is fixedly installed at the bottom of the two springs 710. The clamping disk 711 is frustoconical. The elasticity of spring 710 causes the clamping plate 711 to tend to move away from the docking plate 705.

[0052] Please see Figures 8-9 The upper clamping assembly 800 includes a clamping cover 801 threadedly connected to the outside of the mating disc 705. The inner wall of the clamping cover 801 and the circumferential surface of the mating disc 705 are respectively provided with threads. A circular groove 802 is formed through the center of the clamping cover 801, with the inner diameter of the circular groove 802 gradually decreasing from top to bottom. Two protrusions 803 are fixedly installed on the outer wall of the clamping cover 801. The gray yarn fabric to be tested is placed inside the clamping cover 801, and the clamping disc 711 and the inner wall of the circular groove 802 clamp and fix the gray yarn fabric, ensuring that the gray yarn fabric is stably positioned at the circular groove 802.

[0053] Please see Figures 7-9Each screwing assembly 900 includes a pad 901, and a hoop 902 is fixedly installed on the top of the pad 901. Two arched parts 903 are integrally formed on the hoop 902, and the arched parts 903 are adapted to be inserted into the protrusion 803.

[0054] A connecting shaft 904 is fixedly installed at the bottom of the pad 901. A second protrusion 905 is fixedly installed on the circumferential surface of the connecting shaft 904. A washer 906 is fixedly installed at the bottom of the connecting shaft 904 and the second protrusion 905. A fourth spring 907 is attached to the bottom of the washer 906. The bottom end of the fourth spring 907 is fixedly installed on the bottom wall of the box-shaped seat 100. Due to the elasticity of the fourth spring 907, the washer 906, the connecting shaft 904, and the pad 901 have an upward tendency to move.

[0055] A drive wheel 908 is fitted on the outer side of the connecting shaft 904 and the second protrusion 905. The drive wheel 908 is rotatably connected to the box-shaped seat 100. The inner wall of the drive wheel 908 has a notch that matches the second protrusion 905. So when the drive wheel 908 rotates, the connecting shaft 904 and the second protrusion 905 can rotate synchronously. Moreover, during this process, the connecting shaft 904 can move up and down relative to the drive wheel 908.

[0056] A driven sprocket 909 is fixedly mounted on the circumference of the drive wheel 908. Three driven sprockets 909 in the same row are connected by an annular chain 910. A motor 911 is fixedly mounted on the bottom wall of the box-shaped base 100. A drive sprocket 912 is fixedly mounted on the output end of the motor 911, and the drive sprocket 912 meshes with the annular chain 910. Thus, the motor 911 drives the drive sprocket 912 to rotate, and in conjunction with the transmission action of the annular chain 910 and the driven sprockets 909, drives a row of drive wheels 908 to rotate synchronously.

[0057] When using it, first, place the clamping cover 801 inside the hoop 902, insert the protrusion 803 into the arched part 903, and then place the gray yarn fabric to be tested inside the clamping cover 801.

[0058] Then, by extending the output end of cylinder 607, the slide 604 and rack 606 are moved to the right, causing gear 703 and hollow disk 701 to rotate half a turn, thereby causing clamping disk 711 to rotate to below hollow disk 701. Then, by retracting the output end of cylinder 601, the support plate 600 is moved downward, and hollow disk 701 moves downward simultaneously. Clamping disk 711 is inserted into the interior of circular groove 802, so that pad 901 and clamping disk 711 clamp the gray yarn fabric in the vertical direction, and clamping disk 711 and inner wall of circular groove 802 clamp the gray yarn fabric from the side.

[0059] As the hollow disc 701 continues to move downward, spring three 710 is first compressed and contracted until the bottom edge of the mating disc 705 is attached to the top edge of the clamping cover 801. Then spring four 907 is compressed and contracted, and the mating disc 705 and the clamping cover 801 move downward synchronously. The elasticity of spring four 907 ensures the compressive force between the mating disc 705 and the clamping cover 801.

[0060] Then, the motor 911 drives the drive sprocket 912 to rotate, which, in conjunction with the transmission action of the ring chain 910 and the driven sprocket 909, drives a row of drive wheels 908 to rotate synchronously, which in turn drives the connecting shaft 904 and the second protrusion 905 to rotate, thereby driving the pad 901, the hoop 902 and the arched part 903 to rotate, which in turn drives the clamping cover 801 to rotate relative to the docking plate 705, so that the clamping cover 801 and the docking plate 705 are spirally connected together, the gap between the bottom of the docking plate 705 and the clamping plate 711 decreases, and the spring 710 is compressed and contracted again. Through the elasticity of the spring 710, the clamping force of the clamping plate 711 and the inner wall of the circular groove 802 on the gray yarn fabric is ensured.

[0061] Then, the output end of cylinder 601 extends, causing the support plate 600 to rise, pulling the clamping cover 801 out of the hoop 902. Then, the output end of cylinder 607 retracts, causing the slide 604 and rack plate 606 to move to the left, causing the hollow disk 701 and gear 703 to rotate half a turn, causing the clamping disk 711 to deflect above the hollow disk 701, that is, the clamping cover 801 to deflect above the hollow disk 701. Under the action of gravity, the pressure plate 707 adheres to the surface of the pressure sensor 704. The output end of cylinder 601 continues to extend, thereby causing the gray yarn fabric at the circular groove 802 to adhere to the standard friction agent at the bottom of the U-shaped frame 401. The pressure sensor 704 reflects the pressure between the gray yarn fabric and the standard friction agent from the side.

[0062] Then, the turntable 302 is driven to rotate by the motor 301, and the push rod 303 makes a circular motion, which causes the butterfly plate 200 to shake, so that the standard friction agent moves on the surface of the gray yarn fabric for friction testing.

[0063] The waste roller 503 is driven to rotate by motor 2 504, which winds up the used standard friction agent and moves it on the surface of U-shaped frame 401. Unused standard friction agent moves to the bottom of U-shaped frame 401. During this process, the friction plate 5092 acts on the friction disc 508, and the insert 5096 is engaged in the V-groove of the friction disc 508 to ensure rotational resistance between the friction roller 507 and the friction disc 508, preventing excessive release of standard friction agent and keeping the standard friction agent at the bottom of U-shaped frame 401 taut. When the standard friction agent on the friction roller 507 is used up, the bolt 5094 is unscrewed, and the friction plate 5092 is pushed to the left to remove the friction roller 507 and replace it with a new one. Similarly, motor 2 504 can be removed from the left support 501, and the waste roller 503 can be replaced.

[0064] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A test mechanism for the abrasion resistance of gray yarn fabric, comprising a box-shaped base (100), characterized in that: A boss (101) is fixedly installed at the center of the top of the box-shaped base (100). A butterfly plate (200) is provided above the boss (101). A shaking drive (300) is provided at the bottom of the butterfly plate (200). The shaking drive (300) is fixedly installed on the top of the boss (101). Two rows of friction support components (400) are fixedly installed at the bottom of the butterfly plate (200), and two sets of friction replacement components (500) are provided on the butterfly plate (200). The boss (101) is slidably connected to a support plate (600), and two rows of lower clamping assemblies (700) are rotatably connected to the support plate (600). The lower clamping assemblies (700) are threadedly connected to an upper clamping assembly (800), and two rows of screwing assemblies (900) are provided on the box-shaped base (100). The butterfly board (200) has through slots (203) at the four corners of its top. Each of the friction support components (400) includes a U-shaped frame (401), with two limiting plates (402) fixedly installed on the left and right sides of the U-shaped frame (401). Clamping rods (403) are provided on the left and right sides of the U-shaped frame (401), and the clamping rods (403) are rotatably connected to the limiting plates (402). The standard friction released by the friction replacement component (500) passes through the threading groove (203) and adheres to the bottom and left and right sides of the U-shaped frame (401). Each set of friction replacement components (500) includes a left support (501) fixedly installed on the top left side of the butterfly plate (200). The top of the left support (501) is provided with a U-shaped groove (502). A waste roller (503) is inserted into the U-shaped groove (502). A motor (504) is fixedly installed at one end of the waste roller (503). The used standard friction is fixed on the waste roller (503). The waste roller (503) is driven to rotate by the motor (504) to wind up the used standard friction. Each set of friction replacement components (500) also includes a right support (505) fixedly installed on the top right side of the butterfly plate (200). The top of the right support (505) is provided with a U-shaped groove (506). A friction roller (507) is inserted into the U-shaped groove (506). Unused standard friction is wound on the surface of the friction roller (507). Friction discs (508) are fixedly installed at both ends of the friction roller (507). A rotation suppressor (509) is fixedly installed on the right support (505). The rotation suppressor (509) is attached to the circumferential surface of the friction disc (508).

2. The abrasion resistance testing mechanism for gray yarn fabric according to claim 1, characterized in that: The top of the butterfly plate (200) has two X-axis grooves (201) that are opened through it, and the two X-axis grooves (201) are distributed on the left and right. The center of the top of the butterfly plate (200) has a Z-axis groove (202) that is opened through it, and the X-axis grooves (201) and Z-axis grooves (202) are perpendicular to each other. The shaking drive (300) includes three motors (301) fixedly installed on the top of the boss (101). A turntable (302) is fixedly installed on the top output end of the motor (301). A push rod (303) is fixedly installed at the eccentric part of the top of the turntable (302). The three push rods (303) are slidably connected in two X-axis grooves (201) and Z-axis grooves (202) respectively. A baffle (304) is fixedly installed on the top of the push rod (303). The baffle (304) is attached to the top of the butterfly plate (200).

3. The abrasion resistance testing mechanism for gray yarn fabric according to claim 1, characterized in that: The bottom of the U-shaped frame (401) has a circular groove (404) through which a horizontal plate (405) is fixedly installed between the left and right inner walls of the U-shaped frame (401). A threaded hole is opened at the center of the horizontal plate (405). A threaded rod (406) is threadedly connected to the horizontal plate (405) through the threaded hole. A pressure plate (407) is rotatably connected to the bottom of the threaded rod (406). The pressure plate (407) is frustoconical and is adapted to the circular groove (404). Felt (408) is clamped between the inner wall of the circular groove (404) and the circumferential surface of the pressure plate (407).

4. The abrasion resistance testing mechanism for gray yarn fabric according to claim 1, characterized in that: The rotation suppression component (509) includes a mounting cover (5091) fixedly mounted on the right support (505). A friction plate (5092) is inserted into the opening of the mounting cover (5091). A spring (5093) is fixedly mounted between the friction plate (5092) and the inner wall of the mounting cover (5091). The friction plate (5092) has an arc-shaped surface facing the friction disk (508). A bolt (5094) is threadedly connected to the front side of the mounting cover (5091). The bolt (5094) fits against the front side of the friction plate (5092). The friction plate (5092) has a groove (5095) on its arc-shaped surface. A strip (5096) is inserted into the groove (5095). A spring (5097) is fixedly installed between the strip (5096) and the inner wall of the groove (5095). One end of the strip (5096) located outside the groove (5095) is V-shaped. The friction disk (508) has V-shaped grooves arranged on its circumferential surface. The V-shaped end of the strip (5096) is inserted into the V-shaped groove of the friction disk (508).

5. The abrasion resistance testing mechanism for gray yarn fabric according to claim 4, characterized in that: A cylinder (601) is fixedly installed at the bottom of each of the four corners of the pallet (600). The cylinder (601) is fixedly mounted on the box-shaped base (100). Two rows of clearance grooves (602) are opened through the pallet (600), and there are three clearance grooves (602) in each row. Each of the lower clamping assemblies (700) includes a hollow disk (701) disposed in a relief groove (602). A rotating shaft (702) is fixedly installed on the outer wall of the front and rear sides of the hollow disk (701). The other end of the rotating shaft (702) is rotatably connected to the inner wall of the relief groove (602). A gear (703) is fixedly installed on the rotating shaft (702) on the front side. The bottom of the tray (600) is provided with a flipping drive, which is used to drive the hollow disk (701) to flip.

6. The abrasion resistance testing mechanism for gray yarn fabric according to claim 5, characterized in that: The flipping drive includes four fixed posts (603) fixedly installed at the bottom of the pallet (600). The four fixed posts (603) are arranged in a matrix. Slides (604) are provided on the lower left and right sides of the pallet (600). Two straight grooves (605) are opened through each slide (604). The slides (604) are slidably connected to the fixed posts (603) through the straight grooves (605). Two rack plates (606) are fixedly installed between the two slides (604). The top of the rack plates (606) is provided with a toothed array. The rack plates (606) are engaged with the bottom of the gear (703) through the toothed array. A cylinder (607) is fixedly installed on the bottom left side of the pallet (600). The output end of the cylinder (607) is fixedly installed on the slide (604).

7. The abrasion resistance testing mechanism for gray yarn fabric according to claim 5, characterized in that: A pressure sensor (704) is fixedly installed at the center of the top wall of the hollow disk (701). A docking disk (705) is provided below the hollow disk (701). A sliding block (706) is fixedly installed on the top of the docking disk (705). The sliding block (706) is slidably connected to the bottom of the hollow disk (701). A pressure plate (707) is fixedly installed on the top of the sliding block (706). The pressure plate (707) is located inside the hollow disk (701). Two guide grooves (708) are provided at the bottom of the docking plate (705). A sliding column (709) is slidably connected in the guide groove (708). A spring three (710) is fixedly installed between the top of the sliding column (709) and the top wall of the guide groove (708). A clamping plate (711) is fixedly installed at the bottom of the two spring three (710).

8. The abrasion resistance testing mechanism for gray yarn fabric according to claim 7, characterized in that: The upper clamping assembly (800) includes a clamping cover (801) threadedly connected to the outside of the docking plate (705). The inner wall of the clamping cover (801) and the circumferential surface of the docking plate (705) are respectively provided with threads. A circular groove (802) is provided through the center of the clamping cover (801). The inner diameter of the circular groove (802) gradually decreases from top to bottom. Two protrusions (803) are fixedly installed on the outer wall of the clamping cover (801).

9. The abrasion resistance testing mechanism for gray yarn fabric according to claim 8, characterized in that: Each of the aforementioned screwing assemblies (900) includes a pad (901), a hoop (902) is fixedly installed on the top of the pad (901), two arched portions (903) are integrally formed on the hoop (902), the arched portions (903) are adapted to be inserted into the first protrusion (803), a connecting shaft (904) is fixedly installed on the bottom of the pad (901), a second protrusion (905) is fixedly installed on the circumferential surface of the connecting shaft (904), a washer (906) is fixedly installed at the bottom of the connecting shaft (904) and the second protrusion (905), a spring (907) is attached to the bottom of the washer (906), and the bottom end of the spring (907) is fixedly installed on the bottom wall of the box-shaped seat (100); A drive wheel (908) is sleeved on the outside of the connecting shaft (904) and the second protrusion (905). The drive wheel (908) is rotatably connected to the box-shaped seat (100). A driven sprocket (909) is fixedly installed on the circumferential surface of the drive wheel (908). Three driven sprockets (909) in the same row are connected by a ring chain (910). A motor (911) is fixedly installed on the bottom wall of the box-shaped seat (100). A drive sprocket (912) is fixedly installed at the output end of the motor (911). The drive sprocket (912) meshes with the ring chain (910).

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