Textile yarn performance testing device

Abstract

The invention relates to the technical field of yarn detection, in particular to a textile yarn performance testing device which comprises a conveying frame and a collecting box, a conveying belt is arranged in the conveying frame, a plurality of clamping mechanisms are arranged on the conveying belt, a servo motor used for driving the conveying belt to rotate is arranged on the outer wall of the conveying frame, and side frames are arranged on the outer walls of the two sides of the conveying frame. The two side frames are provided with matching mechanisms used for being matched with the clamping mechanisms, the matching mechanisms are provided with blocking mechanisms used for blocking the clamping mechanisms from moving, the head end of the conveying frame is provided with a horizontally-arranged U-shaped suspension frame, the top of the U-shaped suspension frame is provided with a U-shaped vertical frame, and the U-shaped vertical frame is provided with a supporting piece and a buffering mechanism used for buffering the supporting piece. The supporting piece is provided with a penetrating hole allowing textile yarn to penetrate through, the supporting piece is arranged on the buffering mechanism, and the collecting box is located under the tail end of the conveying frame. According to the invention, continuous performance testing can be carried out on textile yarns, and the quality of performance testing of the textile yarns is improved.

Description

Technical Field

[0001] The invention relates to the technical field of yarn detection, in particular to a textile yarn performance testing device. Background Art

[0002] Yarn is a kind of textile, which is processed into a certain fineness from various textile fibers. It is used for weaving, rope making, thread making, knitting and embroidery. It is divided into short fiber yarn, continuous filament, etc.

[0003] A Chinese invention patent with announcement number CN116929933B discloses a textile yarn performance testing device, comprising: a machine body, having a first slide groove and a second slide groove on the machine body; a first clamping mechanism comprising a first slide plate slidably arranged in the first slide groove; a second clamping mechanism comprising a second slide plate slidably arranged in the second slide groove; a displacement member comprising two placement strips; a pressing member comprising a first pressing mechanism and a second pressing mechanism; the textile yarn performance testing device of the invention first controls the first clamping mechanism and the second clamping mechanism to clamp the two ends of the test yarn segment, and then controls the second clamping mechanism to move relative to the first clamping mechanism to break the test yarn segment for testing, and at the same time, the pressing member clamps the first cone claw and the second cone claw at the two ends of the test spinning segment respectively, and the next yarn segment can be tested by pulling the displacement member. The entire rolled yarn can be tested with one clamping work, which is easy to operate and improves work efficiency.

[0004] However, the above patent still has the following shortcomings in actual use: 1. When testing textile yarn, the patent drives the transmission member through the telescopic drive device to move the second clamping mechanism in the second slide groove, and then drives the first clamping mechanism to move in the first slide groove through the textile yarn until the first clamping mechanism contacts the end of the first slide groove and stops moving. During this period, the third elastic member is tensilely deformed and accumulates force. At this time, the second clamping mechanism continues to be controlled to move, and the test yarn segment clamped by the second clamping mechanism continues to be tensile until it breaks. The breaking value of this test yarn segment is measured. It can be seen that the movement of the first clamping mechanism and the accumulation of force of the third elastic member all rely on the toughness of the textile yarn itself. However, the toughness of the textile yarn itself is very limited. Therefore, it is very difficult for the textile yarn to pull the first clamping mechanism, that is, the textile yarn is very easy to break during the movement of the first clamping mechanism, and the third elastic member cannot achieve the purpose of accumulating force, which affects the subsequent operation steps and reduces the performance test quality of the textile yarn. Moreover, this patent cannot perform continuous testing on a roll of woven yarn. Summary of the invention

[0005] In order to make up for the above shortcomings, the present invention provides a textile yarn performance testing device to solve the problems raised in the above background technology on how to improve the performance testing quality of textile yarns and how to continuously test a roll of yarn.

[0006] The technical solution of the present invention is:

[0007] A textile yarn performance testing device comprises a conveyor frame and a collecting box, wherein a conveyor belt is arranged inside the conveyor frame, and a plurality of clamping mechanisms arranged at equal intervals around the conveying direction thereof are arranged on the conveyor belt, and a servo motor for driving the conveyor belt to rotate is arranged on the outer wall of the conveyor frame, and side frames are arranged on the outer walls of both sides of the conveyor frame, and the two side frames are provided with a matching mechanism for matching with the clamping mechanism, and the matching mechanism is provided with a blocking mechanism for blocking the movement of the clamping mechanism, and a horizontally arranged U-shaped suspension is arranged at the head end of the conveyor frame, and a U-shaped stand is arranged on the top of the U-shaped suspension, and a support member and a buffer mechanism for buffering the support member are arranged on the U-shaped stand, and the support member is provided with a through hole for the textile yarn to pass through, and the support member is arranged on the buffer mechanism, and the collecting box is located directly below the tail end of the conveyor frame.

[0008] Preferably, the clamping mechanism includes a sliding frame, a connecting block is provided at the bottom of the sliding frame, two first guide columns are provided in the sliding frame, a U-shaped support frame is slidably provided on the two first guide columns, a first spring is sleeved on the first guide column, two ends of the first spring respectively contact with the inner wall of the sliding frame and the U-shaped support frame, a second guide column with a polygonal cross-section is provided on the U-shaped support frame, two symmetrically arranged moving blocks are slidably provided on the second guide column, a clamping assembly that cooperates with the matching mechanism for transmission is provided on the top of the moving block, the two clamping assemblies are symmetrically arranged, and the connecting block is fixedly connected to the conveyor belt.

[0009] Preferably, the clamping assembly includes a telescopic frame, one end of the telescopic frame is slidably provided with two symmetrically arranged third guide columns, one end of the two third guide columns is provided with a clamping block, the other end of the two third guide columns is provided with a limit plate, the limit plate is located in the telescopic frame, the third guide column is sleeved with a second spring, and the telescopic frame is arranged on the top of the moving block.

[0010] Preferably, the clamping block is provided with a wavy surface.

[0011] Preferably, the mating mechanism includes two L-shaped brackets, each of which is provided with an extrusion plate, a first wedge surface is provided at the head end of the extrusion plate, and a second wedge surface mating with the first wedge surface is provided on the telescopic frame. The two L-shaped brackets are symmetrically arranged on two side frames, and a moving area for two clamping blocks to pass through is formed between the two extrusion plates.

[0012] Preferably, a T-shaped mounting block is provided on the inner side wall of the U-shaped suspension, a touch block is installed at the head end of the T-shaped mounting block, two symmetrically arranged third wedge surfaces are provided at the bottom of the touch block, and a fourth wedge surface cooperating with the third wedge surface is provided on the clamping block.

[0013] Preferably, the blocking mechanism includes two blocking components, and the two blocking components are respectively installed at the bottom of the two extrusion plates. The blocking components include side plates and blocking electric push rods. A blocking block is installed on the output end of the blocking electric push rod. The side plate is installed at the bottom of the extrusion plate, and the blocking electric push rod is horizontally arranged on the side wall of the side plate.

[0014] Preferably, the side panel is also provided with a secondary reduction assembly, and the secondary reduction assembly includes a first reduction box and a second reduction box, a first telescopic block is slidably provided in the first reduction box, a second telescopic block is slidably provided in the second reduction box, a fifth wedge surface is provided at the head ends of the first telescopic block and the second telescopic block, a buffer liquid is provided in the first reduction box and the second reduction box, the first reduction box and the second reduction box are spaced apart on the side wall of the side panel, a connecting pipe for connecting the first reduction box and the second reduction box is provided between the two, and the U-shaped support frame is provided with two symmetrically arranged sixth wedge surfaces that cooperate with the fifth wedge surface.

[0015] Preferably, the buffer mechanism includes a top block, a fourth guide column and a third spring, two top blocks are provided, two third springs are provided, a guide hole cooperating with the fourth guide column is provided on the support member, a movable groove for the support member to move is provided on the top of the U-shaped frame, the two top blocks are symmetrically arranged on both sides of the movable groove, the fourth guide column is horizontally arranged between the two top blocks, the two third springs are symmetrically sleeved on the fourth guide column, the support member is slidably arranged on the fourth guide column through the guide hole, and one end of the two third springs respectively contacts with the two ends of the support member.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Firstly, the present invention enables a textile yarn segment clamped by two clamping mechanisms to be pulled through the coordination among a servo motor, a conveyor belt, a clamping mechanism and a blocking mechanism until the textile yarn segment is pulled apart, and the breaking value of the tested yarn segment is measured, and the textile yarn released by the release roller can be continuously tested for yarn performance, thereby improving the quality of the textile yarn performance test.

[0018] Secondly, the present invention makes the second wedge surface of the telescopic frame come into contact with the first wedge surface of the extrusion plate, and utilizes the cooperation between the second wedge surface and the first wedge surface to move the telescopic frame inward. The two telescopic frames move toward each other, and the telescopic frames drive the clamping blocks to move synchronously. The two clamping blocks can automatically clamp the textile yarn, and the second spring can improve the stability of the clamping blocks in clamping the textile yarn.

[0019] Thirdly, the present invention is provided with a two-stage deceleration assembly to prevent the U-shaped support frame from resetting too fast and causing the textile yarn to break accidentally. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the textile yarn performance testing device of the present invention;

[0021] Figure 2 A top view of a textile yarn performance testing device according to the present invention;

[0022] Figure 3 The partial structure diagram of the textile yarn performance testing device of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 4 A partial cross-sectional view of the clamping mechanism of the present invention;

[0024] Figure 5 A partial cross-sectional view of the clamping assembly of the present invention;

[0025] Figure 6 It is a structural schematic diagram of the blocking mechanism of the present invention;

[0026] Figure 7 is a cross-sectional view of a two-stage reduction assembly of the present invention;

[0027] Figure 8 The partial structure diagram of the textile yarn performance testing device of the present invention is shown in FIG. Figure 2 .

[0028] In the figure:

[0029] 1. Conveyor frame; 11. Conveyor belt; 12. Servo motor; 13. Side frame; 14. U-shaped suspension; 141. T-shaped mounting block; 142. Touch block; 1421. Third wedge surface; 15. U-shaped stand; 151. Moving groove; 16. Support member; 161. Perforation; 2. Collection box; 3. Clamping mechanism; 31. Sliding frame; 311. Connecting block; 312. First guide column; 313. First spring; 32. U-shaped support frame; 321. Second guide column; 322. Moving block; 323. Sixth wedge surface; 33. Clamping assembly; 331. Telescopic frame; 3311. Third guide column; 3312. Second wedge surface; 33 2. Clamping block; 3321. Wave surface; 3322. Fourth wedge surface; 333. Limiting plate; 334. Second spring; 4. Matching mechanism; 41. L-shaped bracket; 42. Extrusion plate; 43. First wedge surface; 44. Moving area; 5. Blocking mechanism; 51. Side plate; 52. Blocking electric push rod; 53. Blocking block; 54. Secondary reduction assembly; 541. First reduction box; 542. Second reduction box; 543. First telescopic block; 544. Second telescopic block; 545. Fifth wedge surface; 546. Buffer liquid; 547. Connecting pipe; 6. Buffering mechanism; 61. Top block; 62. Fourth guide column; 63. Third spring. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-8 The present invention describes the above technical solution in detail through the following embodiments:

[0032] A textile yarn performance testing device comprises a conveyor frame 1 and a collecting box 2, wherein a conveyor belt 11 is arranged inside the conveyor frame 1, and a plurality of clamping mechanisms 3 are arranged at equal intervals around the conveying direction of the conveyor belt 11, and a servo motor 12 for driving the conveyor belt 11 to rotate is arranged on the outer wall of the conveyor frame 1, and side frames 13 are arranged on the outer walls of both sides of the conveyor frame 1, and the two side frames 13 are provided with a matching mechanism 4 for matching with the clamping mechanism 3, and the matching mechanism 4 is provided with a blocking mechanism 5 for blocking the movement of the clamping mechanism 3, and a horizontally arranged U-shaped suspension 14 is arranged at the head end of the conveyor frame 1, and a U-shaped stand 15 is arranged on the top of the U-shaped suspension 14, and a support member 16 and a buffer mechanism 6 for buffering the support member 16 are arranged on the U-shaped stand 15, and a through hole 161 for the textile yarn to pass through is provided on the support member 16, and the support member 16 is arranged on the buffer mechanism 6, and the collecting box 2 is located directly below the tail end of the conveyor frame 1.

[0033] The present invention also includes a release roller capable of mounting a textile yarn reel, which is prior art.

[0034] The present invention drives the conveyor belt 11 to rotate by a servo motor 12. After the conveyor belt 11 rotates, all the clamping mechanisms 3 are driven to move synchronously. All the clamping mechanisms 3 cooperate with the matching mechanism 4 to clamp the textile yarn released from the release roller in turn. The blocking mechanism 5 can block the movement of the clamping mechanism 3. The textile yarn segment clamped by the two clamping mechanisms 3 can be pulled until the textile yarn segment is torn off, and the breaking value of the test yarn segment is measured. The torn textile yarn segment can be clamped by the clamping mechanism 3 at the front end, and the textile yarn connected to the release roller can be clamped by the clamping mechanism 3 at the rear end. The conveyor belt 11 continues to move, and the clamping mechanism 3 at the front end is replaced by the clamping mechanism 3 at the rear end, and the clamping mechanism 3 at the rear end is replaced by the next clamping mechanism 3. The next clamping mechanism 3 can continue to cooperate with the matching mechanism 4 to clamp the textile yarn released from the release roller. In this cycle, the textile yarn released by the release roller can be continuously tested for yarn performance, thereby improving the quality of the textile yarn performance test.

[0035] The clamping mechanism 3 includes a sliding frame 31, a connecting block 311 is provided at the bottom of the sliding frame 31, two first guide columns 312 are provided in the sliding frame 31, a U-shaped support frame 32 is slidably provided on the two first guide columns 312, a first spring 313 is sleeved on the first guide column 312, and the two ends of the first spring 313 respectively contact the inner wall of the sliding frame 31 and the U-shaped support frame 32, a second guide column 321 with a polygonal cross-section is provided on the U-shaped support frame 32, two symmetrically arranged moving blocks 322 are slidably provided on the second guide column 321, a clamping assembly 33 that cooperates with the matching mechanism 4 is provided on the top of the moving block 322, the two clamping assemblies 33 are symmetrically arranged, and the connecting block 311 is fixedly connected to the conveyor belt 11.

[0036] Furthermore, the clamping assembly 33 includes a telescopic frame 331, one end of the telescopic frame 331 is slidably provided with two symmetrically arranged third guide columns 3311, one end of the two third guide columns 3311 is provided with a clamping block 332, the other end of the two third guide columns 3311 is provided with a limit plate 333, the limit plate 333 is located in the telescopic frame 331, the third guide column 3311 is sleeved with a second spring 334, and the telescopic frame 331 is set on the top of the moving block 322.

[0037] like Figure 4 and Figure 5 As shown, the clamping block 332 is provided with a wavy surface 3321, which can not only increase the contact area of ​​the clamping block 332 with the textile yarn, but also prevent the textile yarn from slipping, thereby improving the stability of clamping the textile yarn.

[0038] Furthermore, the mating mechanism 4 includes two L-shaped brackets 41, an extrusion plate 42 is provided on the L-shaped bracket 41, a first wedge surface 43 is provided at the head end of the extrusion plate 42, a second wedge surface 3312 mating with the first wedge surface 43 is provided on the telescopic frame 331, the two L-shaped brackets 41 are symmetrically arranged on the two side frames 13, and a moving area 44 for the two clamping blocks 332 to pass through is formed between the two extrusion plates 42.

[0039] The working principle of the clamping mechanism 3 and the matching mechanism 4 is as follows: the servo motor 12 drives the conveyor belt 11 to move, the conveyor belt 11 drives the moving block 322 to move, the moving block 322 drives the sliding frame 31 to move synchronously, the sliding frame 31 drives the two clamping components 33 to move synchronously, the telescopic frame 331 of the clamping component 33 gradually approaches the corresponding extrusion plate 42, the second wedge surface 3312 of the telescopic frame 331 contacts the first wedge surface 43 of the extrusion plate 42, and then the second wedge surface 3312 cooperates with the wedge surface of the first wedge surface 43 to make the telescopic frame 331 move inward, the two telescopic frames 331 move toward each other, and the telescopic frames 331 drives the clamping block 332 to move synchronously, and the two clamping blocks 332 can clamp the textile yarn. Then the two clamping blocks 332 squeeze each other, and the clamping block 332 drives the two third guide columns 3311 to move into the telescopic frame 331. The two third guide columns 3311 drive the limit plate 333 to move synchronously. At the same time, the clamping block 332 also squeezes the second spring 334, and the second spring 334 becomes a compressed state. The two clamping blocks 332 enter the moving area 44 in a state of mutual squeezing. The elastic force of the second spring 334 can improve the stability of the clamping block 332 in clamping the textile yarn.

[0040] After the two clamping blocks 332 leave the moving area 44, the elastic force of the second spring 334 on the two clamping blocks 332 can drive the two telescopic frames 331 to move in the opposite direction, and the broken textile yarn loses the clamping force of the two clamping blocks 332. Then the broken textile yarn can automatically fall into the collecting box 2, and then the two clamping blocks 332 continue to move with the conveyor belt 11. When the two clamping blocks 332 clamp the textile yarn released by the release roller again, the two clamping blocks 332 have no automatic reset function, and the gap between the two clamping blocks 332 is too small. As a result, the textile yarn released by the release roller may not be able to enter the gap. A T-shaped mounting block 141 is provided on the inner wall of the U-shaped suspension 14, a touch block 142 is installed at the head end of the T-shaped mounting block 141, two symmetrically arranged third wedge surfaces 1421 are provided at the bottom of the touch block 142, and a fourth wedge surface 3322 cooperating with the third wedge surface 1421 is provided on the clamping block 332. The fourth wedge surface 3322 of the clamping block 332 cooperates with the third wedge surface 1421 of the touch block 142, so that the clamping block 332 can move outward, and the clamping block 332 drives the telescopic frame 331 and the moving block 322 to move synchronously, and the gap between the two clamping blocks 332 increases, thereby ensuring that the textile yarn released by the release roller can stably enter the gap.

[0041] The blocking mechanism 5 includes two blocking components, which are respectively installed at the bottom of the two extrusion plates 42. The blocking components include a side plate 51 and a blocking electric push rod 52. A blocking block 53 is installed on the output end of the blocking electric push rod 52. The side plate 51 is installed at the bottom of the extrusion plate 42, and the blocking electric push rod 52 is horizontally arranged on the side wall of the side plate 51.

[0042] After the two clamping blocks 332 clamp the textile yarn released by the release roller, they will move synchronously with the conveyor belt 11. At this time, the blocking electric push rods 52 of the two blocking components work synchronously to drive the blocking block 53 to move forward, and then the blocking block 53 can contact the U-shaped support frame 32, and the sliding frame 31 continues to be driven by the conveyor belt 11 to move. Then the U-shaped support frame 32 moves backward on the two first guide columns 312, and the first spring 313 is compressed. The textile yarn clamped by the two clamping blocks 332 on the U-shaped support frame 32 stops moving, while the textile yarn clamped by the clamping mechanism 3 at the front end still moves forward with the conveyor belt 11, and the clamped textile yarn segment is pulled, and then the textile yarn segment is pulled and broken, and the breaking value of this test yarn segment is measured.

[0043] Afterwards, the blocking electric push rod 52 drives the blocking block 53 to reset, and the elastic force of the first spring 313 drives the U-shaped support frame 32 to reset. However, the U-shaped support frame 32 moves too fast and generates a large amount of potential energy, which makes it easy for the clamped textile yarn to be accidentally disconnected. Therefore, a two-stage reduction assembly 54 is also provided on the side plate 51. The two-stage reduction assembly 54 includes a first reduction box 541 and a second reduction box 542. The first reduction box 541 is slidably provided with a first telescopic block 543, and the second reduction box 542 is slidably provided with a second telescopic block 543. The telescopic block 544, the first telescopic block 543 and the head end of the second telescopic block 544 are all provided with a fifth wedge surface 545, the first reduction box 541 and the second reduction box 542 are both provided with a buffer liquid 546, the first reduction box 541 and the second reduction box 542 are spaced apart on the side wall of the side plate 51, a connecting pipe 547 for connecting the first reduction box 541 and the second reduction box 542 is provided between the two, and the U-shaped support frame 32 is provided with two symmetrically arranged sixth wedge surfaces 323 that cooperate with the fifth wedge surface 545.

[0044] When the U-shaped support frame 32 is reset by the elastic force of the first spring 313, the sixth wedge surface 323 on the U-shaped support frame 32 is preferentially pressed against the fifth wedge surface 545 of the first telescopic block 543, and then the first telescopic block 543 is squeezed into the first reduction box 541 by the cooperation of the sixth wedge surface 323 and the fifth wedge surface 545. Then, the first telescopic block 543 squeezes the buffer liquid 546 in the first reduction box 541 through the connecting pipe 547 into the second reduction box 542, and the second telescopic block 544 in the second reduction box 542 can automatically extend. After the first telescopic block 543 is separated from the U-shaped support frame 32, the elastic force of the first spring 313 drives the U-shaped support frame 32 to move toward the second telescopic block 544. Then, the U The sixth wedge surface 323 on the U-shaped support frame 32 abuts against the fifth wedge surface 545 of the second telescopic block 544, and the cooperation between the sixth wedge surface 323 and the fifth wedge surface 545 is again used to enable the second telescopic block 544 to be squeezed into the second reduction box 542, and then the second telescopic block 544 squeezes the buffer liquid 546 in the second reduction box 542 through the connecting pipe 547 into the first reduction box 541, and the first telescopic block 543 extends out of the first reduction box 541 again, and the second telescopic block 544 retracts into the second reduction box 542, and the first telescopic block 543 can decelerate the next U-shaped support frame 32. In the above manner, the reset movement speed of the U-shaped support frame 32 can be reduced to avoid accidental breakage of the textile yarn.

[0045] Preferably, the buffer fluid 546 can be water or hydraulic oil.

[0046] The buffer mechanism 6 includes a top block 61, a fourth guide column 62 and a third spring 63. Two top blocks 61 are provided, and two third springs 63 are provided. A guide hole cooperating with the fourth guide column 62 is provided on the support member 16. A movable groove 151 for the support member 16 to move is opened on the top of the U-shaped frame 15. The two top blocks 61 are symmetrically arranged on both sides of the movable groove 151. The fourth guide column 62 is horizontally arranged between the two top blocks 61. The two third springs 63 are symmetrically sleeved on the fourth guide column 62. The support member 16 is slidably arranged on the fourth guide column 62 through the guide hole, and one end of the two third springs 63 respectively contacts the two ends of the support member 16.

[0047] When the textile yarn released from the release roller is pulled, the textile yarn has a certain moving potential energy after being pulled. After the textile yarn hits the inner wall of the perforation 161, the moving potential energy is transferred to the support 16. The support 16 transfers the potential energy to the third spring 63. The third spring 63 offsets the potential energy, thereby improving the conveying stability of the textile yarn and reducing the probability of damage.

Claims

1. A textile yarn performance testing device, characterized in that: The invention comprises a conveying frame (1) and a collecting box (2), wherein a conveying belt (11) is provided inside the conveying frame (1), a plurality of clamping mechanisms (3) are provided on the conveying belt (11) and are arranged at equal intervals around the conveying direction thereof, a servo motor (12) is provided on the outer wall of the conveying frame (1) for driving the conveying belt (11) to rotate, side frames (13) are provided on the outer walls of both sides of the conveying frame (1), and the two side frames (13) are provided with matching mechanisms (4) for matching with the clamping mechanisms (3), and the matching mechanisms (4) are provided with a servo motor (12) for blocking the clamping mechanisms (3) from rotating. The conveying frame (1) is provided with a blocking mechanism (5) for moving the conveying frame (3), the head end of the conveying frame (1) is provided with a horizontally arranged U-shaped suspension frame (14), the top of the U-shaped suspension frame (14) is provided with a U-shaped stand (15), the U-shaped stand (15) is provided with a support member (16) and a buffer mechanism (6) for buffering the support member (16), the support member (16) is provided with a through hole (161) for the textile yarn to pass through, the support member (16) is arranged on the buffer mechanism (6), and the collecting box (2) is located directly below the tail end of the conveying frame (1).

2. The textile yarn performance testing device according to claim 1, characterized in that: The clamping mechanism (3) comprises a sliding frame (31), a connecting block (311) is provided at the bottom of the sliding frame (31), two first guide columns (312) are provided in the sliding frame (31), a U-shaped support frame (32) is slidably provided on the two first guide columns (312), a first spring (313) is sleeved on the first guide column (312), two ends of the first spring (313) respectively contact with the inner wall of the sliding frame (31) and the U-shaped support frame (32), a second guide column (321) with a polygonal cross section is provided on the U-shaped support frame (32), two symmetrically arranged moving blocks (322) are slidably provided on the second guide column (321), a clamping assembly (33) that is transmission-coordinated with the matching mechanism (4) is provided at the top of the moving block (322), the two clamping assemblies (33) are symmetrically arranged, and the connecting block (311) is fixedly connected to the conveyor belt (11).

3. The textile yarn performance testing device according to claim 2, characterized in that: The clamping assembly (33) comprises a telescopic frame (331), one end of which is slidably provided with two symmetrically arranged third guide columns (3311), one end of the two third guide columns (3311) is provided with a clamping block (332), the other end of the two third guide columns (3311) is provided with a limiting plate (333), the limiting plate (333) is located in the telescopic frame (331), the third guide column (3311) is sleeved with a second spring (334), and the telescopic frame (331) is arranged on the top of the moving block (322).

4. The textile yarn performance testing device according to claim 3, characterized in that: The clamping block (332) is provided with a wave surface (3321).

5. The textile yarn performance testing device according to claim 4, characterized in that: The matching mechanism (4) comprises two L-shaped brackets (41), an extrusion plate (42) is provided on the L-shaped bracket (41), a first wedge surface (43) is provided at the head end of the extrusion plate (42), a second wedge surface (3312) matching with the first wedge surface (43) is provided on the telescopic frame (331), the two L-shaped brackets (41) are symmetrically arranged on the two side frames (13), and a moving area (44) for two clamping blocks (332) to pass through is formed between the two extrusion plates (42).

6. The textile yarn performance testing device according to claim 5, characterized in that: A T-shaped mounting block (141) is provided on the inner side wall of the U-shaped suspension (14); a touch block (142) is installed at the head end of the T-shaped mounting block (141); two symmetrically arranged third wedge surfaces (1421) are provided at the bottom of the touch block (142); and a fourth wedge surface (3322) that cooperates with the third wedge surface (1421) is provided on the clamping block (332).

7. The textile yarn performance testing device according to claim 6, characterized in that: The blocking mechanism (5) comprises two blocking assemblies, the two blocking assemblies are respectively mounted at the bottom of two extrusion plates (42), the blocking assemblies comprise side plates (51) and blocking electric push rods (52), a blocking block (53) is mounted on the output end of the blocking electric push rods (52), the side plates (51) are mounted at the bottom of the extrusion plates (42), and the blocking electric push rods (52) are horizontally arranged on the side walls of the side plates (51).

8. The textile yarn performance testing device according to claim 7, characterized in that: The side plate (51) is also provided with a two-stage reduction assembly (54), and the two-stage reduction assembly (54) includes a first reduction box (541) and a second reduction box (542). A first telescopic block (543) is slidably provided in the first reduction box (541), and a second telescopic block (544) is slidably provided in the second reduction box (542). The head ends of the first telescopic block (543) and the second telescopic block (544) are both provided with a fifth wedge surface (545). The first reduction box (541) and the second reduction box (542) are both provided with a buffer liquid (546). The first reduction box (541) and the second reduction box (542) are arranged at intervals on the side wall of the side plate (51). A connecting pipe (547) for connecting the first reduction box (541) and the second reduction box (542) is provided between the two. The U-shaped support frame (32) is provided with two sixth wedge surfaces (323) which are symmetrically arranged and matched with the fifth wedge surface (545).

9. The textile yarn performance testing device according to claim 1, characterized in that: The buffer mechanism (6) comprises a top block (61), a fourth guide column (62) and a third spring (63), wherein two top blocks (61) are provided, and two third springs (63) are provided. A guide hole cooperating with the fourth guide column (62) is provided on the support member (16), and a movable groove (151) for the support member (16) to move is provided on the top of the U-shaped stand (15). The two top blocks (61) are symmetrically arranged on both sides of the movable groove (151), and the fourth guide column (62) is horizontally arranged between the two top blocks (61). The two third springs (63) are symmetrically sleeved on the fourth guide column (62), and the support member (16) is slidably arranged on the fourth guide column (62) through the guide hole, and one end of the two third springs (63) respectively contacts with the two ends of the support member (16).

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