A tensile testing device for textile fiber production

Abstract

The present invention relates to the field of textile fiber testing technology, and in particular to a tensile testing device for textile fiber production, comprising a tensile testing device body, a positioning block fixed on the top of the tensile testing device body, a rotatable threaded rod arranged inside the positioning block, two fixing plates arranged on the side of the tensile testing device body, two clamps for fixing the textile fibers arranged on the two fixing plates, a rotating device for rotating the clamps arranged on the side of the tensile testing device body, a lifting device for lifting the clamps arranged above the rotating device, and an adjusting device for rotating the rotating device arranged on one side of the lifting device. The present invention can rotate multiple groups of textile fibers through the cooperation of structures such as the rotating device, the lifting device, the adjusting device and the clamp, so as to facilitate the tensile testing device body to continuously perform tensile tests on multiple fiber samples and reduce the standby time of the tensile testing device body.

Description

Technical Field

[0001] The invention relates to the technical field of textile fiber testing, in particular to a tensile testing device used for textile fiber production. Background Art

[0002] Textile fibers are divided into natural fibers and chemical fibers. Flax, cotton yarn, hemp rope, etc. are obtained from plants and are natural fibers. There are many types of chemical fibers, such as nylon, rayon, glass fiber, etc. When producing textile fibers, it is necessary to perform tensile tests on the textile fibers, so a tensile testing device is needed for textile fiber production.

[0003] Although the existing tensile testing device for textile fiber production can quickly install and fix different types of textile fibers, when performing tensile tests on multiple textile fibers, it is necessary to first remove the tested textile fiber samples from the fixture and then install new textile fiber samples. Only one test can be performed individually, and the tensile testing device needs to be on standby for a long time, making it difficult to complete multiple textile fiber samples at one time, which increases the testing time and reduces work efficiency. Therefore, we propose a tensile testing device for textile fiber production. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a tensile testing device for textile fiber production.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A tensile testing device for textile fiber production, comprising:

[0007] A tensile testing device body, wherein a positioning block is fixed on the top of the tensile testing device body, a rotatable threaded rod is arranged inside the positioning block, a main motor is arranged on the side of the positioning block, and the output shaft of the main motor is fixed to one end of the threaded rod, two fixing plates are arranged on the side of the tensile testing device body, a transmission block is fixed on one side of one of the fixing plates, and the other fixing plate is fixed on the side of the tensile testing device body, two clamps for fixing textile fibers are arranged on both fixing plates, and a through groove adapted to the transmission block is opened on one side of the positioning block;

[0008] A rotating device for rotating the clamps is arranged on the side of the tension testing device body, a lifting device for lifting the clamps is arranged above the rotating device, and an adjusting device for rotating the rotating device is arranged on one side of the lifting device, and a storage groove for collecting the fixed plate and textile fibers is fixed on the bottom side of the tension testing device body, and the middle part of the storage groove is recessed inward to form a recovery groove;

[0009] The rotation device includes a rotating cylinder arranged above the two clamps, multiple support rods are arranged at both ends of the rotating cylinder, multiple support rods are arranged on multiple detachable mounting plates, two connecting shafts are fixed at both ends of the rotating cylinder, two fixing mechanisms are arranged on the connecting shaft and the rotating cylinder, and fixing frames are arranged on the two connecting shafts, one of the connecting shafts passes through the fixing frame and is connected to the adjusting device, a wedge block is fixed on the top of the mounting plate, a wedge groove adapted to the wedge block is opened at the bottom of the support rod, the clamp is fixed on the mounting plate, multiple support rods and mounting plates can be arranged on the rotating cylinder, and different numbers of support rods and mounting plates can be installed according to actual conditions;

[0010] The adjusting device includes a transmission disk fixed on one of the connecting shafts and a connecting plate fixed on a fixed frame. A rotatable crank is provided at the bottom of the connecting plate. One end of the crank passes through the connecting plate and is fixed with a rotating disk. A limit disk and an adjusting column are fixed on one side of the rotating disk. A plurality of grooves matched with the limit disk are provided on the transmission disk. A limit groove matched with the adjusting column is provided between every two adjacent grooves. The crank is arranged in a Z shape, and one end of the crank is provided with a convex pattern for easy gripping.

[0011] As a preferred technical solution of the present invention, the lifting device includes a support frame fixed on the storage slot, a connecting frame is fixed on the top of the support frame, a secondary motor is fixed on the bottom of the connecting frame, and a rotatable rotating rod is provided at one end of the connecting frame, a main pulley is fixed on the rotating rod, a secondary pulley is fixed on the output end of the secondary motor, a belt is provided between the main pulley and the secondary pulley, and two propulsion blocks are symmetrically fixed on the rotating rod.

[0012] As a preferred technical solution of the present invention, two buffer blocks are symmetrically fixed on the top of the fixed frame, the tops of the two buffer blocks are provided with arc surfaces, and the bottoms of the two propulsion blocks are provided with rollers, and the bottoms of the rollers are in contact with the arc surfaces. The cooperation of the arc surfaces and the rollers facilitates the propulsion blocks to push the fixed frame downward, thereby reducing the wear of the propulsion blocks and the fixed frame.

[0013] As a preferred technical solution of the present invention, a lifting rod is fixed on one side of the fixed frame, a sliding groove compatible with the lifting rod is arranged on the supporting frame, a limiting rod is fixed inside the sliding groove, one end of the buffer block is sleeved on the limiting rod, and a reset spring is arranged between the fixed frame and the sliding groove. The elastic force of the reset spring pushes the lifting rod to move upward, so that the lifting rod drives the fixed frame to move upward to complete the reset.

[0014] As a preferred technical solution of the present invention, the fixing mechanism includes a card block, an insert plate and a self-locking rod. The insert plate is fixed to one side of the top of the card block, and a slot matching the insert plate is provided on the card block. The self-locking rod is telescopically installed at one end of the card block, and a first spring is arranged between the self-locking rod and the card block.

[0015] As a preferred technical solution of the present invention, a positioning groove adapted to the connecting shaft is provided on the card block, a main inclined surface is provided at one end of the plug plate away from the card block, a secondary inclined surface adapted to the main inclined surface is provided at one end of the self-locking rod, a locking groove adapted to the self-locking rod is provided on the side of the plug plate, one end of the self-locking rod passes through the card block and is inserted into the locking groove, and the plug plate is limited by the cooperation of the self-locking rod and the locking groove, so that the two plug plates limit the two card blocks and the two card blocks are spliced.

[0016] As a preferred technical solution of the present invention, a slot compatible with the mounting plate is provided in the middle of the fixing plate, a rectangular slot compatible with the clamp is opened at one end of the slot, two locking blocks for clamping the mounting plate are arranged in the slot, and a limiting groove compatible with the locking block is opened on the mounting plate.

[0017] As a preferred technical solution of the present invention, a movable groove adapted to the locking block is arranged inside the slot, a second spring is arranged between the movable groove and the locking block, a protrusion is arranged at one end of the locking block away from the second spring, and the protrusion is inserted in the limiting groove.

[0018] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0019] 1. Through the cooperation of structures such as a rotation device, a lifting device, an adjustment device and a clamp, the lifting device pushes the fixed frame to move downward. After the mounting plate is inserted into the interior of the fixed plate, one of the fixed plates is driven to move through the transmission block, so that one of the fixed plates drives one of the clamps to move, and a tensile test is performed on the second group of textile fibers. Multiple groups of textile fibers can be rotated, and the tested textile fiber samples can be removed and new textile fiber samples can be reinstalled on the clamp, so that the tensile test device body can continuously perform tensile tests on multiple fiber samples, reduce the standby time of the tensile test device body, reduce the test time, and improve work efficiency.

[0020] 2. Through the coordination of the propulsion block, the main pulley, the secondary pulley, the belt and the fixed frame, the fixed frame drives the rotating cylinder to move up and down through the connecting shaft. Thus, through the coordination of the main pulley, the secondary pulley and the belt, the impact force generated by the propulsion block when the fixed frame rises is buffered, so that the device runs more smoothly.

[0021] 3. Through the coordination of the fixture, the fixing mechanism, the first spring and other structures, the end of the self-locking rod with the main inclined surface is inserted into the interior of the plug plate, and the two blocks are locked, so that people can quickly replace the rotating cylinder. Multiple rotating cylinders with different types of fiber samples can be quickly replaced. When the limited sample on one of the rotating cylinders is tested, the fiber sample on another rotating cylinder can be installed at the same time, so that multiple rotating cylinders can be rotated to further improve work efficiency.

[0022] 4. The second spring releases the elastic force to push the locking block to move, so that the protrusion of the locking block is inserted into the slot. The protrusion cooperates with the slot to limit the mounting plate, thereby avoiding deviation in the moving distance of the two mounting plates, resulting in different heights of the fiber samples on the two fixtures, thereby affecting the experimental results and further reducing the error of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 For the present invention Figure 1 The structural diagram of the lifting device in the middle;

[0025] Figure 3 For the present invention Figure 2 Schematic diagram of the structure of the middle propulsion block;

[0026] Figure 4 For the present invention Figure 1 A schematic diagram of the structure of the middle rotation device;

[0027] Figure 5 For the present invention Figure 4 A schematic diagram of the structure of the middle fixing frame;

[0028] Figure 6 For the present invention Figure 4 Schematic diagram of the structure of the central rotating cylinder;

[0029] Figure 7 For the present invention Figure 1 The structural diagram of the middle regulating device;

[0030] Figure 8 For the present invention Figure 6 Structural diagram of the middle connecting shaft;

[0031] Fig. 9 For the present invention Figure 8 The structural diagram of the middle card block;

[0032] Fig.10 For the present invention Figure 2 Schematic diagram of the structure of the fixed plate.

[0033] Among them: 1. Tensile test device; 2. Positioning block; 3. Threaded rod; 4. Transmission block; 5. Main motor; 6. Rotation device; 8. Lifting device; 9. Adjustment device; 10. Storage slot; 11. Fixed plate; 12. Clamp; 13. Second spring; 14. Lock block; 601. Rotating cylinder; 602. Support rod; 603. Mounting plate; 604. Fixed frame; 605. Buffer block; 606. Lifting rod; 607. Connecting shaft; 608. Block ; 609, plug plate; 610, self-locking rod; 611, first spring; 801, support frame; 802, connecting frame; 803, auxiliary motor; 804, rotating rod; 805, propulsion block; 806, main pulley; 807, auxiliary pulley; 808, belt; 809, reset spring; 810, limit rod; 901, connecting plate; 902, crank; 903, rotating disk; 904, limit disk; 905, adjusting column; 906, transmission disk. DETAILED DESCRIPTION

[0034] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0035] The present invention provides Figure 1 A tensile testing device for textile fiber production is shown, comprising:

[0036] A tensile testing device body 1 is provided, a positioning block 2 is fixed on the top of the tensile testing device body 1, a rotatable threaded rod 3 is arranged inside the positioning block 2, a main motor 5 is arranged on the side of the positioning block 2, and the output shaft of the main motor 5 is fixed to one end of the threaded rod 3, and two fixed plates 11 are arranged on the side of the tensile testing device body 1, a transmission block 4 is fixed on one side of one of the fixed plates 11, and the other fixed plate 11 is fixed to the side of the tensile testing device body 1, and two clamps 12 for fixing textile fibers are arranged on the two fixed plates 11, and a through groove adapted to the transmission block 4 is opened on one side of the positioning block 2; the specific structure and working principle of the clamp 12 are existing results, and specific reference is made to the comparative document (publication number CN115452577A, named a tensile testing device for textile fiber production), and no further elaboration is made here.

[0037] As can be seen from the above, when in use, the two ends of the textile fiber that needs to be subjected to a tensile test are respectively installed on the two clamps 12, and the output shaft of the main motor 5 is driven to rotate by the tensile testing device body 1, so that the output shaft of the main motor 5 drives the threaded rod 3 to rotate, and through the cooperation between the threaded rod 3 and the transmission block 4, the transmission block 4 moves along the outer wall of the threaded rod 3, and the threaded rod 3 drives one of the fixed plates 11 to move, and one of the fixed plates 11 drives the clamp 12 to move, so that the distance between the two clamps 12 becomes larger, thereby completing the tensile test of the textile fiber.

[0038] refer to Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 As shown, a rotating device 6 for rotating the clamp 12 is arranged on the side of the tension testing device body 1, a lifting device 8 for lifting the clamp 12 is arranged above the rotating device 6, and an adjusting device 9 for rotating the rotating device 6 is arranged on one side of the lifting device 8, and a storage groove 10 for collecting the fixing plate 11 and the textile fibers is fixed on the bottom side of the tension testing device body 1, and the middle part of the storage groove 10 is recessed inward to form a recovery groove;

[0039] The rotation device 6 includes a rotating cylinder 601 arranged above two clamps 12, multiple support rods 602 are arranged at both ends of the rotating cylinder 601, multiple support rods 602 are arranged on multiple detachable mounting plates 603, two connecting shafts 607 are fixed at both ends of the rotating cylinder 601, two fixing mechanisms are arranged on the connecting shafts 607 and the rotating cylinder 601, and fixing frames 604 are arranged on the two connecting shafts 607, one of the connecting shafts 607 passes through the fixing frame 604 and is connected to the adjusting device 9, a wedge block is fixed on the top of the mounting plate 603, a wedge groove adapted to the wedge block is opened at the bottom of the support rod 602, the clamp 12 is fixed on the mounting plate 603, multiple support rods 602 and mounting plates 603 can be arranged on the rotating cylinder 601, and different numbers of support rods 602 and mounting plates 603 can be installed according to actual conditions;

[0040] The adjusting device 9 includes a transmission disk 906 fixed on one of the connecting shafts 607 and a connecting plate 901 fixed on the fixed frame 604. A rotatable crank 902 is arranged at the bottom of the connecting plate 901. One end of the crank 902 passes through the connecting plate 901 and is fixed with a rotating disk 903. A limit disk 904 and an adjusting column 905 are fixed on one side of the rotating disk 903. A plurality of grooves matched with the limit disk 904 are arranged on the transmission disk 906. A limit groove matched with the adjusting column 905 is arranged between every two adjacent grooves. The crank 902 is arranged in a Z shape, and one end of the crank 902 is provided with a convex pattern for easy gripping.

[0041] A lifting rod 606 is fixed to one side of the fixed frame 604, and a sliding groove compatible with the lifting rod 606 is arranged on the support frame 801. A limiting rod 810 is fixed inside the sliding groove, and one end of the buffer block 605 is sleeved on the limiting rod 810. A reset spring 809 is arranged between the fixed frame 604 and the sliding groove. The elastic force of the reset spring 809 pushes the lifting rod 606 to move upward, so that the lifting rod 606 drives the fixed frame 604 to move upward to complete the reset.

[0042] By adopting the above technical solution:

[0043] When in use, after a plurality of textile fibers that need to be subjected to a tensile test are placed between a plurality of clamps 12 for fixing, when the tensile test of the first group of textile fibers is completed, the fixing frame 604 is driven to move upward by the lifting device 8, the fixing frame 604 is moved upward by the connecting shaft 607, the connecting shaft 607 drives the rotating cylinder 601 to move upward, the rotating cylinder 601 drives the mounting plate 603 to move upward by the supporting rod 602, so that the mounting plate 603 drives the clamp 12 to move to the outside of the fixing plate 11;

[0044] The crank 902 is rotated, and the crank 902 drives the rotating disk 903 to rotate. The rotating disk 903 drives the limiting disk 904 and the adjusting column 905 to rotate, so that the adjusting column 905 moves along the inside of the limiting groove, so that the adjusting column 905 drives the transmission disk 906 to rotate, and the transmission disk 906 drives the connecting shaft 607 to rotate. At the same time, the limiting disk 904 moves into the groove of the transmission disk 906 to limit the transmission disk 906, and the connecting shaft 607 drives the rotating cylinder 601 to rotate through the fixing mechanism, and the rotating cylinder 601 drives the mounting plate 603 to rotate through the supporting rod 602, so that another mounting plate 603 moves to the top of the fixing plate 11, and then the fixing frame 604 is pushed downward by the lifting device 8, and after the mounting plate 603 is inserted into the inside of the fixing plate 11, one of the fixing plates 11 is driven to move through the transmission block 4, so that one of the fixing plates 11 drives one of the clamps 12 to move, and the second group of textile fibers is subjected to a tensile test. In this way, multiple groups of textile fibers can be subjected to a tensile test.

[0045] At the same time, when conducting a tensile test, the tested textile fiber samples can be removed and new textile fiber samples can be reinstalled on the fixture 12, so that the tensile testing device body 1 can continuously perform tensile tests on multiple fiber samples, reduce the standby time of the tensile testing device body 1, reduce the test time, and improve work efficiency.

[0046] Secondly, refer to Figure 3 , Figure 5As shown, the lifting device 8 includes a support frame 801 fixed on the storage groove 10, a connecting frame 802 is fixed on the top of the support frame 801, an auxiliary motor 803 is fixed on the bottom of the connecting frame 802, and a rotatable rotating rod 804 is provided at one end of the connecting frame 802, a main pulley 806 is fixed on the rotating rod 804, a secondary pulley 807 is fixed on the output end of the auxiliary motor 803, a belt 808 is provided between the main pulley 806 and the secondary pulley 807, and two propulsion blocks 805 are also symmetrically fixed on the rotating rod 804.

[0047] Two buffer blocks 605 are symmetrically fixed on the top of the fixed frame 604. The tops of the two buffer blocks 605 are provided with arc surfaces. The bottoms of the two propulsion blocks 805 are provided with rollers. The bottoms of the rollers are in contact with the arc surfaces. The cooperation of the arc surfaces and the rollers facilitates the propulsion blocks 805 to push the fixed frame 604 downward, thereby reducing the wear of the propulsion blocks 805 and the fixed frame 604.

[0048] By adopting the above technical solution:

[0049] When in use, the output end of the auxiliary motor 803 drives the auxiliary pulley 807 to rotate, and the auxiliary pulley 807 drives the main pulley 806 to rotate through the belt 808, and the main pulley 806 drives the rotating rod 804 to rotate, and the rotating rod 804 drives the propulsion block 805 to rotate, so that the propulsion block 805 contacts the buffer block 605, and the fixed frame 604 is pushed to move downward through the buffer block 605. At the same time, the fixed frame 604 drives the lifting rod 606 to move vertically up and down along the outer wall of the limit rod 810, and the main pulley 806 is reset by releasing the elastic force of the reset spring 809, so that the fixed frame 604 drives the rotating cylinder 601 to reciprocate up and down through the connecting shaft 607, so that the impact force generated by the propulsion block 805 when the fixed frame 604 rises is buffered through the cooperation of the main pulley 806, the auxiliary pulley 807 and the belt 808, so that the operation of the device is more stable.

[0050] Again, reference Figure 8 and Fig. 9 As shown, the fixing mechanism includes a card block 608, an insert plate 609 and a self-locking rod 610. The insert plate 609 is fixed to one side of the top of the card block 608, and a slot matching the insert plate 609 is opened on the card block 608. The self-locking rod 610 is telescopically installed at one end of the card block 608, and a first spring 611 is arranged between the self-locking rod 610 and the card block 608.

[0051] The block 608 is provided with a positioning groove that is compatible with the connecting shaft 607, the end of the plug plate 609 away from the block 608 is provided with a main inclined surface, and one end of the self-locking rod 610 is provided with a secondary inclined surface that is compatible with the main inclined surface. The side of the plug plate 609 is provided with a locking groove that is compatible with the self-locking rod 610, and one end of the self-locking rod 610 passes through the block 608 and is inserted into the locking groove. Through the cooperation of the self-locking rod 610 and the locking groove, the plug plate 609 is limited, so that the two plug plates 609 limit the two blocks 608, and the two blocks 608 are spliced.

[0052] By adopting the above technical solution:

[0053] When in use, before testing the textile fiber samples, the textile fiber samples are first mounted on the plurality of fixtures 12, and then the plurality of fixtures 12 are mounted on the plurality of mounting plates 603, the rotating cylinder 601 is moved to the bottom of the fixed frame 604, the rotating cylinder 601 is pushed to move, so that the block 608 mounted on the rotating cylinder 601 is spliced ​​with the block 608 mounted on the connecting shaft 607, and the two plug plates 609 are inserted into the two blocks 608, and at the same time, the main inclined surfaces of the two plug plates 609 match the main inclined surfaces of the self-locking rod 610, so that the two blocks 608 are tightly fitted. The two first springs 611 release elastic force to push the self-locking rod 610 to move, and one end of the self-locking rod 610 with the main inclined surface is inserted into the interior of the plug plate 609 to lock the two blocks 608, so that people can quickly replace the rotating cylinder 601. Multiple rotating cylinders 601 with different types of fiber samples can be quickly replaced. When the limited sample on one of the rotating cylinders 601 is tested, the fiber sample on another rotating cylinder 601 can be installed at the same time, so that multiple rotating cylinders 601 can be rotated to further improve work efficiency.

[0054] Finally, reference Fig.10 As shown, a slot compatible with the mounting plate 603 is provided in the middle of the fixing plate 11, a rectangular slot compatible with the clamp 12 is opened at one end of the slot, two locking blocks 14 for clamping the mounting plate 603 are arranged in the slot, and a limiting groove compatible with the locking block 14 is opened on the mounting plate 603.

[0055] A movable groove matched with the locking block 14 is arranged inside the slot, a second spring 13 is arranged between the movable groove and the locking block 14, and a protrusion is arranged at one end of the locking block 14 away from the second spring 13, and the protrusion is inserted in the limiting groove.

[0056] By adopting the above technical solution:

[0057] During use, when the mounting plate 603 enters the slot, the second spring 13 releases its elastic force to push the locking block 14 to move, so that the protrusion of the locking block 14 is inserted into the slot. The protrusion cooperates with the slot to limit the mounting plate 603, thereby avoiding deviation in the moving distance of the two mounting plates 603, causing different heights of the fiber samples on the two clamps 12, thereby affecting the experimental results and further reducing the error of the test data.

[0058] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A tensile testing device for textile fiber production, characterized in that: include: A tension test device body (1), wherein a positioning block (2) is fixed on the top of the tension test device body (1), a rotatable threaded rod (3) is arranged inside the positioning block (2), a main motor (5) is arranged on the side of the positioning block (2), an output shaft of the main motor (5) is fixed to one end of the threaded rod (3), two fixing plates (11) are arranged on the side of the tension test device body (1), a transmission block (4) is fixed on one side of one fixing plate (11), and the other fixing plate (11) is fixed to the side of the tension test device body (1), and two clamps (12) for fixing textile fibers are arranged on both fixing plates (11); A rotating device (6) for rotating the clamp (12) is arranged on the side of the tension testing device body (1), a lifting device (8) for lifting the clamp (12) is arranged above the rotating device (6), and an adjusting device (9) for rotating the rotating device (6) is arranged on one side of the lifting device (8), and a storage groove (10) for collecting the fixing plate (11) and textile fibers is fixed to the bottom side of the tension testing device body (1); The rotation device (6) comprises a rotating cylinder (601) arranged above the two clamps (12), a plurality of support rods (602) are arranged at both ends of the rotating cylinder (601), a plurality of detachable mounting plates (603) are arranged on the plurality of support rods (602), two connecting shafts (607) are fixed at both ends of the rotating cylinder (601), two fixing mechanisms are arranged on the connecting shafts (607) and the rotating cylinder (601), fixing frames (604) are arranged on the two connecting shafts (607), and one of the connecting shafts (607) passes through the fixing frame (604) and is connected to the adjusting device (9); The adjusting device (9) comprises a transmission disk (906) fixed on one of the connecting shafts (607) and a connecting plate (901) fixed on a fixing frame (604); a rotatable crank (902) is arranged at the bottom of the connecting plate (901); one end of the crank (902) passes through the connecting plate (901) and is fixed with a rotating disk (903); a limiting disk (904) and an adjusting column (905) are fixed on one side of the rotating disk (903); a plurality of grooves matching the limiting disk (904) are arranged on the transmission disk (906); and a limiting groove matching the adjusting column (905) is arranged between every two adjacent grooves; The fixing mechanism comprises a card block (608), an inserting plate (609) and a self-locking rod (610); the inserting plate (609) is fixed to one side of the top of the card block (608); a slot matching the inserting plate (609) is provided on the card block (608); the self-locking rod (610) is telescopically mounted on one end of the card block (608); and a first spring (611) is provided between the self-locking rod (610) and the card block (608); The clamping block (608) is provided with a positioning groove matched with the connecting shaft (607); one end of the inserting plate (609) away from the clamping block (608) is provided with a main inclined surface; one end of the self-locking rod (610) is provided with a secondary inclined surface matched with the main inclined surface; and a locking groove matched with the self-locking rod (610) is provided on a side surface of the inserting plate (609).

2. A tensile testing device for textile fiber production according to claim 1, characterized in that: The lifting device (8) comprises a support frame (801) fixed on the storage groove (10), a connecting frame (802) is fixed on the top of the support frame (801), an auxiliary motor (803) is fixed on the bottom of the connecting frame (802), and a rotatable rotating rod (804) is provided at one end of the connecting frame (802), a main belt pulley (806) is fixed on the rotating rod (804), a secondary belt pulley (807) is fixed at the output end of the auxiliary motor (803), a belt (808) is provided between the main belt pulley (806) and the secondary belt pulley (807), and two propulsion blocks (805) are symmetrically fixed on the rotating rod (804).

3. A tensile testing device for textile fiber production according to claim 2, characterized in that: Two buffer blocks (605) are symmetrically fixed on the top of the fixing frame (604), the tops of the two buffer blocks (605) are provided with arc surfaces, and the bottoms of the two propulsion blocks (805) are both provided with rollers, and the bottoms of the rollers are in contact with the arc surfaces.

4. A tensile testing device for textile fiber production according to claim 3, characterized in that: A lifting rod (606) is fixed to one side of the fixed frame (604); a slide groove matched with the lifting rod (606) is provided on the support frame (801); a limit rod (810) is fixed inside the slide groove; one end of the buffer block (605) is sleeved on the limit rod (810); and a return spring (809) is provided between the fixed frame (604) and the slide groove.

5. A tensile testing device for textile fiber production according to claim 1, characterized in that: A slot compatible with the mounting plate (603) is provided in the middle of the fixing plate (11), a rectangular slot compatible with the clamp (12) is provided at one end of the slot, two locking blocks (14) for clamping the mounting plate (603) are provided in the slot, and a limiting slot compatible with the locking blocks (14) is provided on the mounting plate (603).

6. A tensile testing device for textile fiber production according to claim 5, characterized in that: A movable groove adapted to the locking block (14) is arranged inside the slot, a second spring (13) is arranged between the movable groove and the locking block (14), and a protrusion is arranged at one end of the locking block (14) away from the second spring (13), and the protrusion is inserted into the limiting groove.

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