Sewing thread tensile property detection equipment

Abstract

The invention discloses sewing thread tensile property detection equipment, and belongs to the technical field of sewing thread detection, the sewing thread tensile property detection equipment comprises a fixing frame and two first guide rollers rotatably arranged on the fixing frame, a second guide roller rotatably connected with the fixing frame is arranged above the first guide rollers, and a sewing thread is guided and conveyed through the first guide rollers and the second guide roller. A driving lifting assembly is arranged on the fixing frame and used for lifting sewing threads, the driving lifting assembly is movably sleeved with a pressing side pushing assembly connected with the fixing frame, and a thread pulling assembly connected with the fixing frame is arranged below the pressing side pushing assembly. And the thread pulling assembly is used for pulling the sewing thread to straighten the sewing thread. According to the device, the sewing thread can be automatically pulled and straightened conveniently, the sewing thread is automatically pressed and positioned before detection, and stretching is carried out in multiple directions at the same time during stretching detection, so that the stretching detection efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sewing thread detection, and in particular relates to a sewing thread tensile performance detection device. Background Art

[0002] Sewing thread is the thread needed for knitted clothing products. Sewing thread can be divided into three categories according to raw materials: natural fiber, synthetic fiber sewing thread and mixed sewing thread. With the development of polyester industry, more and more sewing threads use pure polyester fiber as their raw material.

[0003] In the production process of existing sewing threads, various indicators of sewing threads need to be tested, including strength test, heat resistance test, abrasion resistance test, color fastness test, breaking elongation test, elastic recovery test, wire diameter test and twist test, etc. For example, when testing its tensile performance, the existing testing method is that the staff manually fixes the two ends of the sewing thread. However, manually fixing multiple sewing threads is cumbersome and time-consuming. Moreover, only unidirectional stretching can be performed during testing, and the test is not fast and efficient enough. For this reason, we propose a sewing thread tensile performance testing device. Summary of the invention

[0004] In order to solve the above problems, an object of the present invention is to provide a sewing thread tensile performance testing device.

[0005] To achieve the above-mentioned purpose, the present invention proposes a sewing thread tensile performance testing device, comprising a fixed frame and two first guide rollers rotatably arranged on the fixed frame, a second guide roller rotatably connected to the fixed frame is arranged above the first guide roller, the sewing thread is guided by the first guide roller and the second guide roller, a driving lifting component is arranged on the fixed frame, the driving lifting component is used to lift the sewing thread, a movable sleeve on the driving lifting component is provided with a clamping side pushing component connected to the fixed frame, a wire pulling component connected to the fixed frame is arranged below the clamping side pushing component, the wire pulling component is used to pull the sewing thread to make it straight, and at the same time, the clamping side pushing component cooperates with the wire pulling component to clamp the sewing thread and push it to both sides for stretching, a blowing drive component is fixedly connected to the fixed frame, the blowing drive component is used to blow air to the wire pulling component to make it work and pull the sewing thread, and an electromagnet is fixedly connected to one side of the top of the fixed frame.

[0006] Preferably, the driving lifting assembly includes a threaded tube rotatably connected to the fixed frame, the external guide sleeve of the threaded tube is provided with a driven bevel gear, the internal thread sleeve of the threaded tube is provided with a first screw, the bottom end of the first screw is fixedly connected to a movable frame, the movable frame is rotatably connected to a lifting roller, and two guide rods are fixedly connected to the two sides of the movable frame, one side of the threaded tube is provided with a double-axis motor fixedly connected to the fixed frame, the right end output shaft of the double-axis motor is fixedly connected to the active bevel gear, and the active bevel gear and the driven bevel gear are meshed for transmission, the left end output shaft of the double-axis motor is fixedly connected to the second screw, the external thread sleeve of the second screw is provided with an extrusion plate, the top of the extrusion plate is fixedly connected with a sliding block, two first elastic ropes are fixedly connected between the side of the extrusion plate away from the threaded tube and the fixed frame, and two second elastic ropes are fixedly connected between the side of the extrusion plate close to the threaded tube and the fixed frame.

[0007] The top end of the two wheels is fixedly connected to the driving mechanism, and the driving mechanism can be effectively prevented from sliding onto the driving mechanism, and the driving mechanism can be effectively prevented from sliding onto the driving mechanism.

[0008] Preferably, the wire pulling assembly includes two cross bars fixedly connected to a fixed frame, a guide sleeve fixedly connected between the two cross bars, an internal movable sleeve of the guide sleeve is provided with an L-shaped rod, one end of the L-shaped rod is fixedly connected to a U-shaped plate, and the vertical plate movable sleeve is arranged in the U-shaped plate, the end of the L-shaped rod away from the U-shaped plate is fixedly connected to a support plate, both sides of the support plate are fixedly connected to side plates, a wetting roller is rotatably connected between the two side plates, a sponge is fixedly connected to the side of the L-shaped rod close to the wetting roller, one end of the wetting roller is fixedly connected to a rotating shaft, and the external array of the rotating shaft is provided with a plurality of paddle plates.

[0009] Preferably, the blowing drive assembly includes an air pump fixedly connected to the top of the fixed frame, the air outlet of the air pump is fixedly connected to a first fixed tube, the bottom end of the first fixed tube is fixedly connected to a telescopic tube connected thereto, both ends of the telescopic tube are fixedly connected to a second fixed tube, the bottom array of the second fixed tube is provided with a plurality of air outlet nozzles, and two positioning rods are fixedly connected between the top of the second fixed tube and the support plate.

[0010] Preferably, a sliding hole is provided on the top of the fixing frame along its length direction, and a sliding block is slidably arranged in the sliding hole, and the sliding block is adsorbed and fixed by the electromagnet when the sliding block is close to the electromagnet.

[0011] Preferably, grooves are provided at the top and bottom of the sleeve along its length direction, and the plug-in rod movably passes through the grooves, and plug-in grooves are provided on both sides of the top of the U-shaped plate, and the vertical plates are movably inserted into the plug-in grooves.

[0012] Preferably, the inner wall of the guide sleeve is provided with two guide grooves, and guide bars are fixedly connected to both sides of the L-shaped rod, and the guide bars are movably sleeved in the guide grooves.

[0013] Preferably, the fixing frame is provided with a plurality of guide holes of rectangular structure, and the guide rods movably penetrate the guide holes.

[0014] The sewing thread tensile performance testing device proposed by the present invention can bring the following beneficial effects:

[0015] 1. The wire pulling assembly is driven by the air blowing drive assembly. The wetting roller on the wire pulling assembly is wetted by the sponge and rotated to pull the sewing thread. This makes it convenient to pull both sides of the sewing thread at the same time, so that the sewing thread can be pulled and straightened before testing;

[0016] 2. By driving the lifting component, not only can the pressing side push component be driven downward to press and position the sewing thread, but the driving lifting component can also stretch the sewing thread upward, while the pressing side push component stretches the two ends of the sewing thread to both sides, so that multiple directions are stretched at the same time to improve the efficiency of detection;

[0017] To sum up, the present solution has a simple structure and novel design. It is not only convenient for automatically pulling and straightening the sewing thread, but also automatically compresses and positions the sewing thread before testing, and stretches it in multiple directions at the same time during the stretching test, thereby improving the efficiency of the stretching test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0019] In the attached picture:

[0020] Figure 1 It is a front view structural schematic diagram of the present invention.

[0021] Figure 2 It is a side structural schematic diagram of the present invention.

[0022] Figure 3 It is a schematic diagram of the cross-sectional structure of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure from the first viewing angle of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure from a second viewing angle of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the driving and lifting assembly of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the clamping side thrust assembly of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the wire pulling assembly of the present invention.

[0028] Fig. 9 It is a schematic diagram of the three-dimensional structure of the blowing drive assembly of the present invention.

[0029] In the figure: 1 fixed frame, 2 driving lifting assembly, 201 threaded pipe, 202 driven bevel gear, 203 first screw, 204 movable frame, 205 lifting roller, 206 guide rod, 207 double-axis motor, 208 driving bevel gear, 209 second screw, 210 extrusion plate, 211 slider, 212 first elastic rope, 213 second elastic rope, 3 pressing side push assembly, 301 positioning block, 302 movable rod, 303 movable plate, 304 extrusion seat, 305 hanging frame, 306 sleeve, 307 U-shaped rod, 308 pressing roller, 30 9 plug-in rod, 310 vertical plate, 311 connecting rod, 312 double-headed cylinder, 313 push-pull plate, 314 third elastic rope, 4 pull wire assembly, 401 cross bar, 402 guide sleeve, 403 L-shaped rod, 404 U-shaped plate, 405 support plate, 406 side plate, 407 wetting roller, 408 sponge, 409 rotating shaft, 410 toggle plate, 5 blowing drive assembly, 501 air pump, 502 first fixed tube, 503 telescopic tube, 504 second fixed tube, 505 positioning rod, 6 electromagnet, 7 guide hole, 8 first guide roller, 9 second guide roller. DETAILED DESCRIPTION

[0030] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0031] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more schemes or examples in a suitable manner.

[0035] like Figures 1 to 9As shown, an embodiment of the present invention proposes a sewing thread tensile performance testing device, comprising a fixed frame 1 and two first guide rollers 8 rotatably arranged on the fixed frame 1, a second guide roller 9 rotatably connected to the fixed frame 1 is arranged above the first guide roller 8, the sewing thread is guided by the first guide roller 8 and the second guide roller 9, a driving lifting component 2 is provided on the fixed frame 1, the driving lifting component 2 is used to lift the sewing thread, a clamping side pushing component 3 connected to the fixed frame 1 is movably sleeved on the driving lifting component 2, a wire pulling component 4 connected to the fixed frame 1 is arranged below the clamping side pushing component 3, the wire pulling component 4 is used to pull the sewing thread to make it straight, and at the same time, the clamping side pushing component 3 cooperates with the wire pulling component 4 to clamp the sewing thread and push it to both sides for stretching, a blowing driving component 5 is fixedly connected to the fixed frame 1, the blowing driving component 5 is used to blow air to the wire pulling component 4 to make it work and pull the sewing thread, and an electromagnet 6 is fixedly connected to one side of the top of the fixed frame 1.

[0036] like Figure 6 and Figure 7 As shown, the driving lifting component 2 includes a threaded tube 201 rotatably connected to the fixed frame 1, an external guide sleeve of the threaded tube 201 is provided with a driven bevel gear 202, an internal threaded sleeve of the threaded tube 201 is provided with a first screw 203, a bottom end of the first screw 203 is fixedly connected to a movable frame 204, a lifting roller 205 is rotatably connected to the movable frame 204, two guide rods 206 are fixedly connected to both sides of the movable frame 204, a double-axis motor 207 fixedly connected to the fixed frame 1 is provided on one side of the threaded tube 201, a right end output shaft of the double-axis motor 207 is fixedly connected to a driving bevel gear 208, and the driving bevel gear 208 is meshed with the driven bevel gear 202 for transmission, a left end output shaft of the double-axis motor 207 is fixedly connected to a second screw 209, an external threaded sleeve of the second screw 209 is provided with an extrusion plate 210, a slider 211 is fixedly connected to the top of the extrusion plate 210, and the extrusion plate 210 is away from the threaded tube 2 There are two first elastic ropes 212 fixedly connected between one side of 01 and the fixed frame 1, and two second elastic ropes 213 fixedly connected between the extrusion plate 210 close to the threaded tube 201 and the fixed frame 1. The dual-axis motor 207 simultaneously drives the active bevel gear 208 and the second screw 209 to rotate. The rotation of the second screw 209 will drive the extrusion plate 210 and the slider 211 to move to one side. In this way, when the slider 211 approaches the electromagnet 6 and is adsorbed and fixed, the extrusion plate 210 and the second screw 209 are disengaged at this time, and the second elastic rope 213 is stretched at the same time. When moving, the extrusion plate 210 will squeeze the extrusion seat 304 downward, and the active bevel gear 208 will drive the driven bevel gear 202 meshing with it to rotate, and the driven bevel gear 202 will drive the threaded tube 201 to rotate. The rotation of the threaded tube 201 drives the first screw 203 to rise and fall, and the first screw 203 drives the movable frame 204 and the lifting roller 205 to rise and fall.

[0037] like Figure 7 and Figure 8 As shown, the pressing side thrust assembly 3 includes a positioning block 301 fixedly connected to both sides of the fixing frame 1, the internal movable sleeve of the positioning block 301 is provided with a movable rod 302, the two movable rods 302 are fixedly connected to the side where the top ends are close to each other with a movable plate 303, and the movable plate 303 is movably sleeved on the outside of the first screw 203, the bottom end of the movable plate 303 is fixedly connected to an extrusion seat 304, and the bottom of the extrusion plate 210 is slidably set on the extrusion seat 304, the bottom end of the movable rod 302 is fixedly connected to a hanging frame 305, two third elastic ropes 314 are fixedly connected between the hanging frame 305 and the positioning block 301, the internal guide sleeve of the hanging frame 305 is provided with a sleeve 306, the two sides of the sleeve 306 are movably sleeved with a U-shaped rod 307, the outer guide sleeve of the U-shaped rod 307 is provided with a pressure roller 308, and the U-shaped The rod 307 extends into a guide sleeve on one side of the sleeve 306 and is provided with a plug-in rod 309. The bottom end of the plug-in rod 309 is fixedly connected to a vertical plate 310. The bottom of the sleeve 306 is fixedly connected to a connecting rod 311. The ends of the two connecting rods 311 that are close to each other are fixedly connected to a double-headed cylinder 312. The output shaft of the double-headed cylinder 312 is fixedly connected to a push-pull plate 313. The extrusion seat 304 is squeezed and moved downward, which will drive the movable plate 303 and the movable rod 302 to move downward. The movable rod 302 will drive the hanging frame 305 to move downward. The hanging frame 305 will drive the sleeve 306 to move downward. The sleeve 306 drives the U-shaped rod 307 and the pressure roller 308 to move downward. The downward movement of the pressure roller 308 will press the sewing thread tightly on the support plate 405, and the double-headed cylinder 312 can also drive the U-shaped plate 404 to move horizontally through the push-pull plate 313.

[0038] like Figure 8 and Fig. 9As shown, the wire pulling assembly 4 includes two cross bars 401 fixedly connected to the fixed frame 1, a guide sleeve 402 is fixedly connected between the two cross bars 401, an L-shaped rod 403 is movably sleeved inside the guide sleeve 402, one end of the L-shaped rod 403 is fixedly connected to a U-shaped plate 404, and the vertical plate 310 is movably sleeved in the U-shaped plate 404, the end of the L-shaped rod 403 away from the U-shaped plate 404 is fixedly connected to a support plate 405, both sides of the support plate 405 are fixedly connected to side plates 406, a wetting roller 407 is rotatably connected between the two side plates 406, and a sponge 4 is fixedly connected to the side of the L-shaped rod 403 close to the wetting roller 407 08. One end of the wetting roller 407 is fixedly connected to a rotating shaft 409, and the external array of the rotating shaft 409 is provided with a plurality of paddle plates 410. The paddle plates 410 are rotated by the wind and drive the wetting roller 407 to rotate through the rotating shaft 409. After the wetting roller 407 is wetted by the sponge 408, it will absorb the sewing thread, so that the rotation of the wetting roller 407 will pull the sewing thread downward, thereby facilitating the pulling of both sides of the sewing thread to straighten it, and the movement of the U-shaped plate 404 will drive the L-shaped rod 403 to slide in the guide sleeve 402, and the L-shaped rod 403 will drive the support plate 405 to move synchronously, which will stretch the compressed sewing thread to both sides.

[0039] like Fig. 9 As shown, the blowing drive assembly 5 includes an air pump 501 fixedly connected to the top of the fixed frame 1, the air outlet of the air pump 501 is fixedly connected to the first fixed tube 502, the bottom end of the first fixed tube 502 is fixedly connected to the telescopic tube 503 connected thereto, the two ends of the telescopic tube 503 are fixedly connected to the second fixed tube 504, the bottom array of the second fixed tube 504 is provided with a plurality of air outlet nozzles, two positioning rods 505 are fixedly connected between the top of the second fixed tube 504 and the support plate 405, the air pump 501 blows air into the telescopic tube 503 through the first fixed tube 502, and the gas is then blown out through the air outlet nozzle on the second fixed tube 504, so that not only the toggle plate 410 is blown, but also the sewing thread is blown to prevent the sewing thread from being entangled on the wetting roller 407.

[0040] like Figure 4 and Figure 6 As shown, a sliding hole is opened at the top of the fixing frame 1 along its length direction, and a sliding block 211 is slidably arranged in the sliding hole. When the sliding block 211 approaches the electromagnet 6, it is adsorbed and fixed by it.

[0041] like Figure 7 and Figure 8 As shown, grooves are provided at the top and bottom of the sleeve 306 along its length direction, and the plug-in rod 309 movably passes through the grooves. Plug-in grooves are provided on both sides of the top of the U-shaped plate 404, and the vertical plate 310 is movably inserted into the plug-in grooves, so that the movement of the U-shaped plate 404 will synchronously drive the movement of the vertical plate 310.

[0042] like Figure 8As shown, the inner wall of the guide sleeve 402 is provided with two guide grooves, and guide bars are fixedly connected to both sides of the L-shaped rod 403, and the guide bars are movably sleeved in the guide grooves.

[0043] like Figure 5 and Figure 6 As shown, a plurality of rectangular guide holes 7 are provided on the fixing frame 1, and the guide rods 206 are movable through the guide holes 7, and the guide holes 7 guide the guide rods 206, thus preventing the movable frame 204 from deflecting.

[0044] Working principle: the sewing thread is located between the first guide roller 8 and the second guide roller 9. Before detection, the air pump 501 is started. The air pump 501 blows air into the telescopic tube 503 through the first fixed tube 502, and the gas is blown out through the air outlet nozzle on the second fixed tube 504, so that air is blown to the paddle plate 410. The paddle plate 410 is rotated by the wind and drives the wetting roller 407 to rotate through the rotating shaft 409. The wetting roller 407 is wetted by the water-soaked sponge 408 and absorbs the sewing thread. In this way, the rotation of the wetting roller 407 will pull the sewing thread downward, thereby facilitating the pulling of both sides of the sewing thread to straighten it. The air outlet nozzle also blows air to the sewing thread to prevent the sewing thread from being entangled on the wetting roller 407.

[0045] After the sewing thread is pulled and straightened, the dual-axis motor 207 drives the active bevel gear 208 and the second screw 209 to rotate at the same time. The rotation of the second screw 209 drives the extrusion plate 210 and the slider 211 to move to the left. When the slider 211 approaches the electromagnet 6 and is adsorbed and fixed, the extrusion plate 210 is disengaged from the second screw 209. In this way, the second screw 209 can continue to idle. At the same time, the extrusion plate 210 stretches the second elastic rope 213. The extrusion plate 210 squeezes the extrusion seat 304 downward when moving. The extrusion seat 304 is squeezed and moved downward, which drives the movable plate 303 and the movable rod 302 to move downward. The movable rod 302 drives the hanging frame 305 to move downward. The hanging frame 305 drives the sleeve 306 to move downward. The sleeve 306 drives the U-shaped rod 307 and the pressure roller 308 to move downward. The downward movement of the pressure roller 308 presses the sewing thread tightly on the support plate 405, thereby completing the compression and positioning of both sides of the sewing thread.

[0046] At this time, the double-headed cylinder 312 continues to drive the active bevel gear 208 to rotate, the active bevel gear 208 will drive the driven bevel gear 202 meshing therewith to rotate, the driven bevel gear 202 will drive the threaded tube 201 to rotate, the threaded tube 201 rotates and drives the first screw rod 203 to move upward, the first screw rod 203 drives the movable frame 204 and the lifting roller 205 to move upward, the lifting roller 205 moves upward and stretches the sewing thread upward, at this time, the double-headed cylinder 312 can also drive the U-shaped plates 404 to move away from each other through the push-pull plate 313, and the U-shaped plates 404 move upward. The movement will drive the L-shaped rod 403 to slide in the guide sleeve 402, and the L-shaped rod 403 will drive the support plate 405 to move synchronously, and the U-shaped plate 404 will also drive the vertical plate 310 to move synchronously, and the vertical plate 310 will drive the U-shaped rod 307 and the pressure roller 308 to move synchronously, which will stretch the compressed sewing thread to both sides, so that the sewing thread is stretched upward and to both sides synchronously, thereby improving the detection efficiency, and it can also be stretched only upward or only to both sides, so that different stretching methods can be selected according to needs, thereby meeting the diverse detection needs of enterprises.

[0047] When it is necessary to drive the lifting roller 205 to move down and reset, the electromagnet 6 is powered off and stops adsorbing the slider 211, so that the extrusion plate 210 will be pulled to contact the second screw 209 again under the pulling force of the second elastic rope 213, and when the dual-axis motor 207 drives the second screw 209 to rotate in the opposite direction, the second screw 209 will be threadedly engaged with the extrusion plate 210 again, and the extrusion plate 210 is driven to move to the right side at the same time. When the extrusion plate 210 moves to the right side, the extrusion on the extrusion seat 304 is gradually reduced, so that under the pulling force of the third elastic rope 314, the pressure roller 308 will be driven to move up to release the pressure on the sewing thread, and the vertical plate 310 will move up and down in the U-shaped plate 404.

[0048] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0049] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A sewing thread tensile property testing device, comprising a fixed frame (1) and two first guide rollers (8) rotatably arranged on the fixed frame (1), a second guide roller (9) rotatably connected to the fixed frame (1) being arranged above the first guide roller (8), the sewing thread being guided by the first guide roller (8) and the second guide roller (9), characterized in that: The fixed frame (1) is provided with a driving and lifting assembly (2), which is used to lift the sewing thread. A movable sleeve on the driving and lifting assembly (2) is provided with a pressing side-pushing assembly (3) connected to the fixed frame (1). A wire-pulling assembly (4) connected to the fixed frame (1) is provided below the pressing side-pushing assembly (3). The wire-pulling assembly (4) is used to pull the sewing thread to make it straight. At the same time, the pressing side-pushing assembly (3) and the wire-pulling assembly (4) cooperate to press the sewing thread and push and stretch it to both sides. The fixed frame (1) is fixedly connected with a blowing driving assembly (5), which is used to blow air to the wire-pulling assembly (4) to make it work and pull the sewing thread. An electromagnet (6) is fixedly connected to one side of the top of the fixed frame (1).

2. A sewing thread tensile performance testing device according to claim 1, characterized in that: The driving lifting assembly (2) comprises a threaded tube (201) rotatably connected to a fixed frame (1); an external guide sleeve of the threaded tube (201) is provided with a driven bevel gear (202); an internal threaded sleeve of the threaded tube (201) is provided with a first screw (203); a movable frame (204) is fixedly connected to the bottom end of the first screw (203); a lifting roller (205) is rotatably connected to the movable frame (204); two guide rods (206) are fixedly connected to both sides of the movable frame (204); a double-axis motor (207) is fixedly connected to the fixed frame (1) on one side of the threaded tube (201); an output shaft at the right end of the double-axis motor (207) is provided. A driving bevel gear (208) is fixedly connected thereto, and the driving bevel gear (208) is meshed with the driven bevel gear (202) for transmission; a second screw rod (209) is fixedly connected to the left output shaft of the dual-axis motor (207); an extrusion plate (210) is provided on the external thread sleeve of the second screw rod (209); a slider (211) is fixedly connected to the top of the extrusion plate (210); two first elastic ropes (212) are fixedly connected between a side of the extrusion plate (210) away from the threaded tube (201) and the fixing frame (1); and two second elastic ropes (213) are fixedly connected between a side of the extrusion plate (210) close to the threaded tube (201) and the fixing frame (1).

3. A sewing thread tensile performance testing device according to claim 2, characterized in that: The clamping side thrust assembly (3) comprises a positioning block (301) fixedly connected to both sides of the fixing frame (1); a movable rod (302) is movably sleeved inside the positioning block (301); a movable plate (303) is fixedly connected to the side where the top ends of the two movable rods (302) are close to each other, and the movable plate (303) is movably sleeved outside the first screw rod (203); a pressing seat (304) is fixedly connected to the bottom end of the movable plate (303); and the bottom of the pressing plate (210) is slidably arranged on the pressing seat (304); a hanging frame (305) is fixedly connected to the bottom end of the movable rod (302); and two third elastic ropes are fixedly connected between the hanging frame (305) and the positioning block (301). (314), the internal guide sleeve of the hanging frame (305) is provided with a sleeve (306), the movable sleeves on both sides of the sleeve (306) are provided with U-shaped rods (307), the external guide sleeve of the U-shaped rod (307) is provided with a pressure roller (308), the guide sleeve on one side of the U-shaped rod (307) extending into the sleeve (306) is provided with a plug-in rod (309), the bottom end of the plug-in rod (309) is fixedly connected to a vertical plate (310), the bottom of the sleeve (306) is fixedly connected to a connecting rod (311), the ends of the two connecting rods (311) close to each other are fixedly connected to a double-headed cylinder (312), and the output shaft of the double-headed cylinder (312) is fixedly connected to a push-pull plate (313).

4. A sewing thread tensile performance testing device according to claim 3, characterized in that: The pull wire assembly (4) comprises two cross bars (401) fixedly connected to the fixed frame (1), a guide sleeve (402) fixedly connected between the two cross bars (401), an L-shaped rod (403) movably sleeved inside the guide sleeve (402), one end of the L-shaped rod (403) fixedly connected to a U-shaped plate (404), and a vertical plate (310) movably sleeved inside the U-shaped plate (404), the L-shaped rod (403) being away from the U-shaped plate (404). ) is fixedly connected to a support plate (405) at one end, side plates (406) are fixedly connected to both sides of the support plate (405), a wetting roller (407) is rotatably connected between the two side plates (406), a sponge (408) is fixedly connected to a side of the L-shaped rod (403) close to the wetting roller (407), one end of the wetting roller (407) is fixedly connected to a rotating shaft (409), and a plurality of paddle plates (410) are arranged in an outer array of the rotating shaft (409).

5. The sewing thread tensile performance testing device according to claim 4, characterized in that: The blowing drive assembly (5) comprises an air pump (501) fixedly connected to the top of the fixing frame (1); an air outlet of the air pump (501) is fixedly connected to a first fixing pipe (502); a bottom end of the first fixing pipe (502) is fixedly connected to a telescopic pipe (503) in communication therewith; both ends of the telescopic pipe (503) are fixedly connected to a second fixing pipe (504); a plurality of air outlet nozzles are arranged in an array at the bottom of the second fixing pipe (504); and two positioning rods (505) are fixedly connected between the top of the second fixing pipe (504) and the support plate (405).

6. A sewing thread tensile performance testing device according to claim 7, characterized in that: A sliding hole is provided at the top of the fixing frame (1) along its length direction, and the sliding block (211) is slidably arranged in the sliding hole. When the sliding block (211) is close to the electromagnet (6), it is adsorbed and fixed by the electromagnet (6).

7. The sewing thread tensile performance testing device according to claim 6, characterized in that: The top and bottom of the sleeve (306) are provided with grooves along the length direction thereof, and the plug-in rod (309) movably penetrates the grooves. The top two sides of the U-shaped plate (404) are provided with plug-in grooves, and the vertical plates (310) are movably inserted into the plug-in grooves.

8. The sewing thread tensile performance testing device according to claim 7, characterized in that: The inner wall of the guide sleeve (402) is provided with two guide grooves, and guide bars are fixedly connected to both sides of the L-shaped rod (403), and the guide bars are movably sleeved in the guide grooves.

9. The sewing thread tensile performance testing device according to claim 8, characterized in that: The fixing frame (1) is provided with a plurality of guide holes (7) of rectangular structure, and the guide rods (206) movably penetrate the guide holes (7).

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