Fabric performance testing device for sock production

Abstract

The invention relates to a fabric performance testing device for sock production, and belongs to the technical field of sock production.The fabric performance testing device for sock production comprises a testing box, a rotating cylinder is rotationally arranged in the center of the inner side of the testing box, and a servo motor for driving the rotating cylinder to rotate is fixedly arranged on one side of the testing box; the outer side of the rotary drum is fixedly communicated with a plurality of telescopic mechanisms, one end of each telescopic mechanism is provided with an artificial foot model, and the inner side wall of the test box is provided with a plurality of pilling mechanisms matched with the artificial foot models. And the artificial foot model is made of silica gel, so that the real wear of the foot and the sock of a person can be simulated, the process of testing the fuzzing and pilling of the sock can be more real, and the wear of the sock in the wearing process can be simulated more really.

Description

Technical Field

[0001] The present invention belongs to the technical field of sock production, and particularly relates to a device for testing the performance of fabrics used in sock production. Background Art

[0002] In the textile industry, the quality and performance of fabrics are crucial. During daily use, actual wearing, and washing processes, fabrics are constantly subjected to friction. At the parts prone to friction, the fiber ends on the fabric surface become loose and protrude from the fabric surface due to frictional sliding, presenting many annoying fuzzes, which is called "pilling". If these fuzzes cannot fall off in time during continued wearing and continue to be rubbed and curled to entangle with each other, they are kneaded into many spherical particles, usually called "pilling". Pilling of fabrics will deteriorate the appearance of fabrics and reduce their service performance. Especially for synthetic fiber fabrics, due to the poor cohesion performance, high strength, and good elasticity of the fibers themselves, pilling is more prominent. Currently, pilling has become one of the main indicators for evaluating the wearing performance of fabrics. Especially for the produced socks, since socks often rub against the inside of shoes during wearing, the requirement for pilling is higher. Therefore, it is necessary to test the pilling of socks.

[0003] For example, in a Chinese invention patent with the publication number CN117147353B and the name of a device for testing the pilling of the surface of a textile fabric, it specifically includes a machine body and a fixing frame fixedly connected to the inner wall of the machine body. A friction component for testing the sample to be tested is slidably connected to the outer wall of the fixing frame, and two groups of friction components are symmetrically arranged about the central axis of the fixing frame. The inner wall of the machine body is also rotatably connected with a loading component for fixing the test sample. The loading component includes a support shaft rotatably connected to the inner wall of the machine body, a first clamping frame fixedly connected to the outer wall of the support shaft, and a fixing component slidably connected to the outer wall of the first clamping frame. The inner wall of the machine body is also fixedly connected with a pressing rod cooperating with the fixing component. The inner wall of the machine body is also slidably connected with a sealing component for sealing the machine body. Although the above prior art can test the pilling of textile fabrics, for the produced socks, it is necessary to wear them on the feet for simulated pilling tests. Therefore, there is a need for a device for testing the performance of fabrics used in sock production. Summary of the Invention

[0004] The purpose of the present invention is to provide a device for testing the performance of fabrics used in sock production with a simple structure and reasonable design to solve the above problems.

[0005] The present invention achieves the above purpose through the following technical solutions:

[0006] A fabric performance testing device for sock production, including a testing box. A rotating cylinder is rotatably arranged at the center inside the testing box. A servo motor for driving the rotating cylinder to rotate is fixedly arranged on one side of the testing box. A number of telescopic mechanisms are fixedly communicated with the outside of the rotating cylinder. A prosthetic foot model is arranged at one end of a number of the telescopic mechanisms. A number of pilling mechanisms for cooperating with the prosthetic foot model are arranged on the inner side wall of the testing box.

[0007] As a further optimized scheme of the present invention, the telescopic mechanism includes a number of fixed cylinders fixedly communicated with the outside of the rotating cylinder. Sealing piston plates are hermetically and slidably arranged inside a number of the fixed cylinders. A slide bar slidably penetrating one end of the fixed cylinder is fixedly arranged on one side of the sealing piston plate. One side of the prosthetic foot model is connected to one end of the slide bar through a disassembly component.

[0008] As a further optimized scheme of the present invention, the disassembly component includes a connecting rod fixedly arranged on one side of the prosthetic foot model. A first connecting plate is fixedly arranged at one end of the connecting rod. A second connecting plate for cooperating with the first connecting plate is fixedly arranged at one end of the slide bar. The first connecting plate and the second connecting plate are connected through a number of connecting bolts.

[0009] As a further optimized scheme of the present invention, the pilling mechanism includes a mounting plate fixedly arranged on the inner side wall of the testing box. A number of mounting screws for connecting with the testing box are arranged at the edge of the mounting plate. A number of fixed plates are fixedly arranged on one side of the mounting plate. Side pilling plates are arranged on both sides of a number of the fixed plates. A bottom pilling plate fixedly connected with the mounting plate is arranged between two adjacent fixed plates.

[0010] As a further optimized scheme of the present invention, a sealing door is arranged on the front side of the testing box. A pneumatic mechanism communicated with the rotating cylinder is arranged at the center of the sealing door. A number of outlet components for cooperating with the prosthetic foot model are arranged on the circumference of the testing box.

[0011] As a further optimized scheme of the present invention, the pneumatic mechanism includes an air cylinder fixedly arranged at the center of the sealing door. An electric telescopic rod is fixedly arranged on one side of the air cylinder. A pressure air piston plate hermetically and slidably connected with the inside of the air cylinder is fixedly arranged at the output end of the electric telescopic rod. One end of the rotating cylinder hermetically rotates through the sealing door and is communicated with the inside of the air cylinder.

[0012] As a further optimized scheme of the present invention, the outlet component includes an outlet groove opened on the circumference of the testing box. A baffle is slidably arranged inside the outlet groove. A positioning screw is fixedly arranged on the outside of the baffle. A card slot for cooperating with the positioning screw is opened on the outside of the testing box.

[0013] As a further optimization solution of the present invention, an observation window is provided on the sealing door, and a plurality of fixing screws connected to the test chamber are provided at the edge of the sealing door. The plurality of outlet slots and the plurality of pilling mechanisms are arranged alternately.

[0014] As a further optimization solution of the present invention, support frames are fixedly provided on both sides of the bottom of the test chamber, and a plurality of the dummy foot models are made of silicone material.

[0015] As a further optimization solution of the present invention, textile fabrics are provided on the surfaces of the side pilling plates and the bottom pilling plates, and the dummy foot models pass through two adjacent side pilling plates and rub against the textile fabrics.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. In the present invention, by driving the rotating cylinder to rotate through the servo motor, a plurality of fixed cylinders outside the rotating cylinder can be driven to rotate, and then the sliding rod at one end of the fixed cylinder can be driven to rotate together, and then the dummy foot model at one end of the sliding rod can be driven to rotate together. Since socks are sleeved on the dummy foot models, a plurality of socks can be driven to rotate. When the socks rotate through two adjacent side pilling plates, the socks will rub against the textile fabrics on the two side pilling plates and the bottom pilling plate, which can simulate the wear of socks during the process of a person wearing shoes and exercising. And because the dummy foot models are made of silicone material, the wear of the real feet of a person and the socks can be simulated more, which can make the process of testing the pilling of socks more real and more truly simulate the wear of socks during the wearing process.

[0018] 2. In the present invention, by driving the air compression piston plate to slide inside the air cylinder through the electric telescopic rod, the gas inside the air cylinder can be compressed into the inside of the rotating cylinder, and then enter the inside of the fixed cylinder through the rotating cylinder, so that the gas compresses the sealing piston plate inside the fixed cylinder, and the sealing piston plate drives the sliding rod and the dummy foot model at one end of it to expand and contract along the fixed cylinder, and the pressure when the dummy foot model passes through the textile fabric on the bottom pilling plate can be adjusted, which can simulate the situation of a person wearing socks and doing strenuous exercise.

[0019] 3. In the present invention, by driving the rotating cylinder to rotate through the servo motor, the plurality of dummy foot models outside the rotating cylinder are rotated to the corresponding outlet slot positions, and then the servo motor stops rotating. Then, by driving the air compression piston plate to slide inside the air cylinder through the electric telescopic rod, the gas inside the air cylinder can be compressed into the inside of the rotating cylinder, and then enter the inside of the fixed cylinder through the rotating cylinder, so that the gas compresses the sealing piston plate inside the fixed cylinder, and the sealing piston plate drives the sliding rod and the dummy foot model at one end of it to expand and contract along the fixed cylinder, and the dummy foot model can pass through the outlet slot and extend out of the outside of the test chamber, and the socks can be worn on the dummy foot models or detached from the dummy foot models, which can improve the wearing and detaching efficiency of the socks, and further improve the testing efficiency of the socks. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the first overall structural schematic diagram of the present invention;

[0021] Figure 2 is the second overall structural schematic diagram of the present invention;

[0022] Figure 3 is the third overall structural schematic diagram of the present invention;

[0023] Figure 4 is the fourth overall structural schematic diagram of the present invention;

[0024] Figure 5 is the internal overall structural schematic diagram of the present invention;

[0025] Figure 6 is the present invention Figure 1 enlarged view at position A in;

[0026] Figure 7 is the present invention Figure 3 enlarged view at position B in;

[0027] Figure 8 is the present invention Figure 5 enlarged view at position C in;

[0028] Figure 9 is the present invention Figure 5 enlarged view at position D in.

[0029] In the figure: 1. Test chamber; 2. Sealing door; 201. Observation window; 202. Fixing screw; 3. Pneumatic mechanism; 301. Air cylinder; 302. Electric telescopic rod; 303. Compressing piston plate; 4. Outlet assembly; 401. Outlet groove; 402. Baffle; 403. Positioning screw; 404. Card slot; 5. Servo motor; 6. Rotating cylinder; 7. Artificial foot model; 701. Connecting rod; 702. First connecting plate; 8. Telescopic mechanism; 801. Fixed cylinder; 802. Sealing piston plate; 803. Slide bar; 804. Second connecting plate; 805. Connecting bolt; 9. Pilling mechanism; 901. Mounting plate; 902. Fixing plate; 903. Side pilling plate; 904. Bottom pilling plate; 905. Mounting screw; 10. Support frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0031] Embodiment

[0032] As Figure 1 , Figure 5 , Figure 8 shown, a fabric performance testing device for sock production includes a testing box 1. The testing box 1 adopts a cylindrical hollow structure. Both sides of the bottom of the testing box 1 are fixedly provided with support frames 10. A sealing door 2 is arranged on the front side of the testing box 1. An observation window 201 is arranged on the sealing door 2, which is convenient for observing the testing situation inside the testing box 1 through the observation window 201. A plurality of fixing screws 202 connected to the testing box 1 are arranged on the edge of the sealing door 2. A rotating cylinder 6 is rotatably arranged at the center inside the testing box 1. A gas flow channel is opened at the center of the rotating cylinder 6. A servo motor 5 for driving the rotating cylinder 6 to rotate is fixedly arranged on the rear side of the testing box 1. A plurality of telescopic mechanisms 8 are fixedly communicated with the outside of the rotating cylinder 6. The plurality of telescopic mechanisms 8 are arranged in six rows. Each row of telescopic mechanisms 8 is circumferentially and equidistantly arranged along the axis of the rotating cylinder 6. A plurality of telescopic mechanisms 8 are arranged in each row. The specific number of rows can be adjusted according to the testing process. The telescopic mechanism 8 includes a plurality of fixed cylinders 801 fixedly communicated with the outside of the rotating cylinder 6. Sealing piston plates 802 are hermetically and slidably arranged inside the plurality of fixed cylinders 801. A slide bar 803 slidably penetrating one end of the fixed cylinder 801 is fixedly arranged on one side of the sealing piston plate 802. A second connecting plate 804 is fixedly arranged at one end of the slide bar 803. A first connecting plate 702 is connected to one side of the second connecting plate 804 through a connecting bolt 805. A connecting rod 701 is fixedly arranged on one side of the first connecting plate 702. A prosthetic foot model 7 is arranged at one end of the connecting rod 701. When in use, when the servo motor 5 drives the rotating cylinder 6 to rotate, it can drive the plurality of fixed cylinders 801 outside the rotating cylinder 6 to rotate, and then drive the slide bar 803 at one end of the fixed cylinder 801 to rotate together, and then drive the second connecting plate 804 and the first connecting plate 702 at one end of the slide bar 803 to rotate, and then drive the prosthetic foot model 7 at one end of the connecting rod 701 to rotate together. The plurality of prosthetic foot models 7 are made of silica gel material. The prosthetic foot model 7 made of silica gel material can more realistically simulate the human foot, making the wear test of the sock more accurate.

[0033] As Figure 5 , Figure 9As shown in the figure, several pilling mechanisms 9 that cooperate with the prosthetic foot model 7 are provided on the inner side wall of the test box 1. The pilling mechanism 9 includes a mounting plate 901 fixedly arranged on the inner side wall of the test box 1. The mounting plate 901 is fixedly connected to the test box 1 through mounting screws 905. A plurality of fixing plates 902 are fixedly arranged on one side of the mounting plate 901. Side pilling plates 903 are arranged on both sides of the plurality of fixing plates 902. Chamfers are provided at the two side edges of the side pilling plates 903 to facilitate the extrusion and sliding of the prosthetic foot model 7. A bottom pilling plate 904 fixedly connected to the mounting plate 901 is arranged between two adjacent fixing plates 902. Chamfers are provided at the two side edges of the bottom pilling plate 904 to facilitate the extrusion and sliding of the prosthetic foot model 7. Textile fabrics are arranged on the surfaces of the side pilling plates 903 and the bottom pilling plate 904. The textile fabric on the side pilling plate 903 can simulate the wear of the shoe upper on the sock, and the textile fabric on the bottom pilling plate 904 can simulate the wear of the insole on the sock. And the mounting plate 901 is convenient to disassemble through the mounting screws 905, so as to facilitate the replacement of the side pilling plates 903 and the bottom pilling plate 904, so that the textile fabrics on the side pilling plates 903 and the bottom pilling plate 904 can be replaced again, better testing the wear performance of the sock. The distance between two adjacent side pilling plates 903 is slightly smaller than the width of the prosthetic foot model 7, so as to facilitate the prosthetic foot model 7 to pass through and rub against the textile fabric between two adjacent side pilling plates 903, which can truly simulate the internal friction between the sock and the shoe. When the sock rotates and passes through two adjacent side pilling plates 903, it will cause the sock to rub against the textile fabrics on the two side pilling plates 903 and the bottom pilling plate 904, which can simulate the wear of the sock during the process of a person wearing shoes and exercising.

[0034] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown in the figure, a plurality of outlet components 4 that cooperate with the prosthetic foot model 7 are arranged on the circumference of the test box 1. In this embodiment, six outlet components 4 are provided, and the specific number can be adjusted according to the test process. The outlet component 4 includes an outlet groove 401 opened on the circumference of the test box 1. The outlet groove 401 is a long strip-shaped through groove. The six outlet grooves 401 and the six pilling mechanisms 9 are arranged alternately. A baffle 402 is slidably arranged inside the outlet groove 401. A positioning screw 403 is fixedly arranged on the outer side of the baffle 402. A card slot 404 that cooperates with the positioning screw 403 is opened on the outer side of the test box 1. When it is necessary to open the outlet groove 401, the positioning screw 403 can be pulled, so that the baffle 402 slides into the inside of the test box 1, opening the outlet groove 401. At the same time, when the positioning screw 403 slides into the inside of the card slot 404, then a nut (not shown in the figure) is screwed onto the positioning screw 403, so that the nut abuts against the outer side wall of the test box 1, finally opening and fixing the baffle 402.

[0035] As Figure 1 , Figure 3 , Figure 7 shown, a pneumatic mechanism 3 communicating with the rotary drum 6 is arranged at the center of the sealing door 2. The pneumatic mechanism 3 includes a cylinder 301 fixedly arranged at the center of the sealing door 2. One side of the cylinder 301 is fixedly provided with an electric telescopic rod 302. The output end of the electric telescopic rod 302 is fixedly provided with a pressure piston plate 303 that is hermetically and slidably connected to the inner side of the cylinder 301. One end of the rotary drum 6 is hermetically rotated through the sealing door 2 and communicates with the inner side of the cylinder 301. During use, by driving the pressure piston plate 303 to slide inside the cylinder 301 through the electric telescopic rod 302, the gas inside the cylinder 301 can be compressed into the inside of the rotary drum 6. Then, the compressed gas enters the inside of the fixed cylinder 801 through the rotary drum 6, causing the gas to compress the sealing piston plate 802 inside the fixed cylinder 801, making the sealing piston plate 802 slide inside the fixed cylinder 801, and the sealing piston plate 802 drives one end of the sliding rod 803 to telescopically slide out on the fixed cylinder 801. Further, the prosthetic foot model 7 at one end of the sliding rod 803 can move away from the fixed cylinder 801, so that the pressure when the prosthetic foot model 7 passes over the textile fabric on the bottom surface pilling plate 904 can be adjusted, and the situation of a person wearing socks and doing strenuous exercise can be simulated. Also, the rotary drum 6 can be driven to rotate by the servo motor 5, so that the multiple prosthetic foot models 7 on the outer side of the rotary drum 6 rotate to the corresponding outlet slots 401. Then, the servo motor 5 stops rotating. Next, by driving the pressure piston plate 303 to slide inside the cylinder 301 through the electric telescopic rod 302, the gas inside the cylinder 301 can be compressed into the inside of the rotary drum 6. Then, it enters the inside of the fixed cylinder 801 through the rotary drum 6, causing the gas to compress the sealing piston plate 802 inside the fixed cylinder 801, and the sealing piston plate 802 drives the sliding rod 803 and the prosthetic foot model 7 at its one end to telescopically move along the fixed cylinder 801, so that the prosthetic foot model 7 can extend out of the outside of the test box 1 through the outlet slot 401, and the socks can be worn on or removed from the prosthetic foot model 7, improving the wearing and removing efficiency of the socks, and further improving the test efficiency of the socks.

[0036] It should be noted that for the fabric performance testing device for sock production, when it is necessary to wear the sock on the artificial foot model 7, only need to drive the rotating cylinder 6 to rotate through the servo motor 5, so that multiple artificial foot models 7 on the outer side of the rotating cylinder 6 rotate to the corresponding outlet slot 401 position. Then the servo motor 5 stops rotating. Next, drive the air compression piston plate 303 to slide inside the air cylinder 301 through the electric telescopic rod 302, and the gas inside the air cylinder 301 can be compressed into the inside of the rotating cylinder 6. Then, it enters the inside of the fixed cylinder 801 through the rotating cylinder 6, so that the gas compresses the sealing piston plate 802 inside the fixed cylinder 801. The sealing piston plate 802 drives the slide bar 803 and the artificial foot model 7 at one end of it to stretch along the fixed cylinder 801, and the artificial foot model 7 can extend out of the outside of the test box 1 through the outlet slot 401, and the sock can be worn on the artificial foot model 7. Then drive the air compression piston plate 303 to slide reversely inside the air cylinder 301 through the electric telescopic rod 302, and the sealing piston plate 802 can be driven to slide reversely inside the fixed cylinder 801 through the atmospheric pressure, so that the slide bar 803 and the artificial foot model 7 at one end of it approach the fixed cylinder 801, and then multiple artificial foot models 7 extending out of the outside of the test box 1 are retracted into the inside of the test box 1. Then drive the rotating cylinder 6 to rotate through the servo motor 5, and multiple fixed cylinders 801 on the outer side of the rotating cylinder 6 can be driven to rotate. Then, the slide bar 803 at one end of the fixed cylinder 801 rotates along with it, and then the second connecting plate 804 and the first connecting plate 702 at one end of the slide bar 803 rotate, and then the artificial foot model 7 at one end of the connecting rod 701 rotates together. When the sock rotates through the pilling plates 903 on adjacent two sides, the sock will rub against the textile fabrics on the two side pilling plates 903 and the bottom pilling plate 904. Also, during the rubbing process, the artificial foot model 7 can be driven by the electric telescopic rod 302 to press against the bottom pilling plate 904, which can simulate the situation of a person wearing the sock and doing strenuous exercise.

[0037] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A fabric performance testing device for sock production, comprising a test box (1), characterized in that: A rotating drum (6) is rotatably arranged at the inner center of the test box (1); a servo motor (5) for driving the rotating drum (6) to rotate is fixedly arranged on one side of the test box (1); a plurality of telescopic mechanisms (8) are fixedly connected to the outer side of the rotating drum (6); a plurality of artificial foot models (7) are arranged at one end of the plurality of telescopic mechanisms (8); and a plurality of ball-raising mechanisms (9) cooperating with the artificial foot models (7) are arranged on the inner side wall of the test box (1).

2. The fabric performance testing device for socks production according to claim 1, characterized in that: The telescopic mechanism (8) comprises a plurality of fixed cylinders (801) fixedly connected to the outside of the rotating cylinder (6); a sealing piston plate (802) is provided on the inner side of each of the plurality of fixed cylinders (801) in a sealed and slidable manner; a sliding rod (803) is fixedly provided on one side of the sealing piston plate (802) and slides through one end of the fixed cylinder (801); and one side of the artificial foot model (7) is connected to one end of the sliding rod (803) via a disassembly component.

3. A fabric performance testing device for socks production according to claim 2, characterized in that: The disassembly assembly comprises a connecting rod (701) fixedly arranged on one side of the artificial foot model (7), a first connecting plate (702) being fixedly arranged on one end of the connecting rod (701), a second connecting plate (804) cooperating with the first connecting plate (702) being fixedly arranged on one end of the sliding rod (803), and the first connecting plate (702) and the second connecting plate (804) being connected via a plurality of connecting bolts (805).

4. A fabric performance testing device for socks production according to claim 3, characterized in that: The pilling mechanism (9) comprises a mounting plate (901) fixedly mounted on the inner wall of the test box (1); a plurality of mounting screws (905) connected to the test box (1) are arranged at the edge of the mounting plate (901); a plurality of fixing plates (902) are fixedly mounted on one side of the mounting plate (901); side pilling plates (903) are arranged on both sides of the plurality of fixing plates (902); and a bottom pilling plate (904) fixedly connected to the mounting plate (901) is arranged between two adjacent fixing plates (902).

5. The fabric performance testing device for socks production according to claim 4, characterized in that: The front side of the test box (1) is provided with a sealed door (2), the center of the sealed door (2) is provided with a pneumatic mechanism (3) connected to a rotating drum (6), and the circumference of the test box (1) is provided with a plurality of outlet assemblies (4) that cooperate with a prosthetic foot model (7).

6. A fabric performance testing device for socks production according to claim 5, characterized in that: The pneumatic mechanism (3) comprises an air cylinder (301) fixedly arranged at the center of the sealing door (2); an electric telescopic rod (302) is fixedly arranged on one side of the air cylinder (301); an air compression piston plate (303) is fixedly arranged at the output end of the electric telescopic rod (302) and is sealingly and slidably connected to the inner side of the air cylinder (301); one end of the rotating cylinder (6) seals and rotates through the sealing door (2) and is connected to the inner side of the air cylinder (301).

7. A fabric performance testing device for socks production according to claim 6, characterized in that: The outlet assembly (4) comprises an outlet slot (401) provided on the circumference of the test box (1); a baffle (402) is slidably provided on the inner side of the outlet slot (401); a positioning screw (403) is fixedly provided on the outer side of the baffle (402); and a slot (404) cooperating with the positioning screw (403) is provided on the outer side of the test box (1).

8. The fabric performance testing device for socks production according to claim 7, characterized in that: The sealed door (2) is provided with an observation window (201), the edge of the sealed door (2) is provided with a plurality of fixing screws (202) connected to the test box (1), and a plurality of the outlet slots (401) and a plurality of the ball-raising mechanisms (9) are arranged alternately.

9. The fabric performance testing device for socks production according to claim 3, characterized in that: Support frames (10) are fixedly arranged on both sides of the bottom of the test box (1), and the plurality of artificial foot models (7) are made of silica gel.

10. The fabric performance testing device for socks production according to claim 4, characterized in that: The surfaces of the side pilling plates (903) and the bottom pilling plates (904) are provided with textile fabrics, and the artificial foot model (7) passes through two adjacent side pilling plates (903) to rub against the textile fabrics.

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