Tension strength testing equipment for spinning yarns

Abstract

The invention discloses a tension strength testing device for spinning yarn, and belongs to the technical field of spinning yarn testing, the tension strength testing device comprises a main body module and a testing module, the main body module comprises a testing table, and the front end face and the rear end face of the testing table are fixedly connected with mounting plates; the testing module comprises a plurality of tension assemblies which are all arranged at the top of the testing table, the tension assemblies are all connected with fixing assemblies, tension can be applied to the yarns in a staggered mode through the arrangement of the tension assemblies, the fixing assemblies, the pushing assemblies and the driving assemblies, the operation is repeated, the yarns rub against one another, and the yarn quality is improved. A worker can check whether the yarn tends to be broken or not and can also check the abrasion condition of the yarn in the state, so that the state of the yarn in the tension environment is known, the yarn using process is met, and testing is more accurate.

Description

Technical Field

[0001] The present application relates to the technical field of spinning yarn testing, and more specifically, to a tensile strength testing device for spinning yarn. Background Art

[0002] Yarn is a kind of textile, which is processed into products of a certain fineness from various textile fibers. It is used for weaving, rope making, thread making, knitting and embroidery, etc. Yarn is divided into: staple fiber yarn, which is made by spinning staple fibers (natural staple fibers or chemical fiber cut fibers), and is divided into ring yarn, free-end spinning, self-twisted yarn, etc. During the yarn production process, the yarn needs to be tested, and tensile test is one of them. According to the search, the patent number CN213398002U discloses a measuring platform and a spring, wherein a storage box is fixedly arranged inside the measuring platform, a sealing plate is movably installed at the front end of the storage box, a plurality of first hooks are evenly fixedly arranged at the upper end of the storage box, second hooks are fixedly arranged at both upper and lower ends of the spring, first fixed pulleys are fixedly arranged at both ends of the measuring platform, and a support frame is vertically fixedly arranged at the lower end of the measuring platform. When the utility model is used, the yarn to be detected is wound and fixed between the rings, and the yarn is straightened at the same time, and then a suitable spring is selected, and the second hook is hung between the second semicircular rings, so that the T-shaped rods on the left and right sides are connected by the spring, and it is convenient for the user to select a specific spring according to the yarn, thereby facilitating the adjustment work and making it convenient to measure different types of yarns.

[0003] With respect to the above-mentioned related technologies, the existing spinning yarn strength detection equipment is usually in the above-mentioned state, and a specified tensile force is applied to the yarn to perform corresponding tests on it. Although the tensile resistance of a single yarn can be known, the detection form is relatively single. During the use of the spinning yarn, it is usually in an interlaced state. The yarns in the fabric are usually subjected to force in multiple forms, and friction will be generated between the yarns when subjected to tension, and the yarns themselves will generate friction. Therefore, the current testing equipment is not convenient for simulating more complex working conditions, and it is impossible to know the impact on the yarn under the above-mentioned state, resulting in poor detection effect. For this reason, a tensile strength testing device for spinning yarn is proposed. Summary of the invention

[0004] In order to solve the above problems, the present application provides a tensile strength testing device for spinning yarn, which adopts the following technical solution: A tensile strength testing device for spinning yarns, comprising a main body module and a testing module. The main body module includes a testing table, and mounting plates are fixedly connected to both the front end face and the rear end face of the testing table. The testing module includes a plurality of tensile components all arranged on the top of the testing table. A fixing component is connected to each of the plurality of tensile components. A plurality of pushing components are arranged at the bottom of the inner wall of the testing table, and the plurality of pushing components are respectively located between two of the tensile components. A plurality of adjusting components are arranged at equal intervals in a straight line on the top of the testing table, and the plurality of adjusting components are respectively connected to the plurality of pushing components. A driving component is arranged between the two mounting plates, and the driving component is connected to the plurality of pushing components. A cutting component is arranged at the bottom of the testing table, and the cutting component is connected to one of the pushing components. A plurality of indicating components are arranged at equal intervals in a straight line on the top of the testing table, and the plurality of indicating components are respectively connected to the plurality of adjusting components.

[0005] Further, the tensile component includes a sliding groove opened on the top of the testing table. Two movable blocks are slidably connected inside the sliding groove. The pushing component is connected to the top of one of the movable blocks. A spring is fixedly connected between the two movable blocks. A steering rod is fixedly connected to the bottom of the other movable block, and a push plate is fixedly connected to one end of the steering rod.

[0006] Further, the pushing component includes a fixing frame fixedly connected to the bottom of the inner wall of the testing table. An inner rotating column is rotatably connected inside the fixing frame. A transmission disk is fixedly connected to one end of the inner rotating column, and a gear ring is fixedly connected to the outer surface of the transmission disk.

[0007] Further, the pushing component further includes a long groove opened on the transmission disk. An adjusting screw is rotatably connected inside the long groove. The top end of the adjusting screw extends to the outside of the transmission disk. A lifting block is slidably connected inside the long groove. A driving shaft is rotatably connected to the lifting block. The inside of the lifting block is threadedly connected to the outer surface of the adjusting screw. The outer surface of the driving shaft contacts the outer surface of the push plate.

[0008] Further, the adjusting component includes a rotating rudder rotatably connected to the top of the testing table. The bottom end of the rotating rudder extends into the testing table and is fixedly connected to a convex block. The top end of the adjusting screw is fixedly connected to a concave block, and the concave block is movably connected to the convex block.

[0009] Further, the fixing component includes a fixing seat fixedly connected to the top of one of the movable blocks. A fixing bolt is threadedly connected to the top of the fixing seat. A pressing plate is slidably connected inside the fixing seat, and the top of the pressing plate is rotatably connected to the bottom end of the fixing bolt.

[0010] Furthermore, the driving assembly includes a driving rod rotatably connected between two mounting plates. A plurality of driving gears are fixedly connected to the outer surface of the driving rod. One of the driving gears meshes with the outer surface of the gear ring. A driving motor is fixedly connected to one of the mounting plates, and the output shaft of the driving motor is fixedly connected to one end of the driving rod.

[0011] Furthermore, the indicating assembly includes a worm gear rotatably connected to the top of the test bench. A plurality of indicating grooves are formed in the top of the worm gear. A pointer is fixedly connected to the top of the test bench, and one end of the pointer is located above the indicating groove.

[0012] Furthermore, the indicating assembly includes two mounting seats both fixedly connected to the top of the test bench. A worm is rotatably connected between the interiors of the two mounting seats. The outer surface of the worm meshes with the outer surface of the worm gear. Tapered gears are fixedly connected to the outer surfaces of the rotating rudder and one end of the worm respectively, and the outer surfaces of the two tapered gears mesh with each other.

[0013] Furthermore, the cutting assembly includes a cutting seat fixedly connected to the bottom of the inner wall of the test bench. A cutting groove is formed in the interior of the cutting seat. A cutting scissors is slidably connected in the cutting groove. A perforation is formed in the interior of the cutting seat, and the perforation penetrates through the cutting groove. A turntable is fixedly connected to the outer surface of the inner rotating column near the other end. A boosting arm is movably connected to the turntable, and the boosting arm is movably connected to the cutting scissors.

[0014] In summary, the present application includes the following beneficial technical effects: (1) Through the settings of the tensioning assembly, the fixing assembly, the pushing assembly and the driving assembly, the present application enables the yarns to be alternately tensioned. By repeating this operation, the yarns rub against each other. The staff can not only check whether the yarns tend to break, but also check the wear condition of the yarns in this state, so as to know the state of the yarns in such a tension environment, which conforms to the yarn usage process and makes the test more accurate. (2) Through the setting of the adjustment assembly, the present application can adjust multiple pushing assemblies to a unified state or to different states, so as to provide different tensions to different yarns, thereby simulating more complex usage situations, making the detection more comprehensive, and facilitating the staff to observe the friction effects on the intersections under different tensions, and making it more convenient for the staff to understand the yarn performance. (3) Through the setting of the driving assembly, by observing the position where the pointer points to the indicating groove, the subsequent tension force on the yarn can be known, making the detection process more accurate. (4) Through the settings of the cutting seat, the perforation, the cutting scissors, the turntable and the boosting arm, the present application enables the redundant parts of the yarns to be cut, avoiding the mess on the test bench surface caused by the redundant yarns during the test. Brief Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the present application; Figure 2 is the present application Figure 1 schematic diagram of the enlarged structure at A in; Figure 3 is a schematic diagram of the test module structure of the present application; Figure 4 is a schematic cross-sectional view of the reduced components of the present application; Figure 5 is a schematic diagram of the drive component structure of the present application; Figure 6 is the present application Figure 5 schematic diagram of the enlarged structure at B in; Figure 7 is the present application Figure 5 schematic diagram of the enlarged structure at C in.

[0016] Description of the reference numerals in the drawings: 100, main body module; 110, test bench; 120, mounting plate; 200, test module; 210, tension component; 211, movable block; 212, spring; 213, steering rod; 214, push plate; 220, fixing component; 221, fixing seat; 222, fixing bolt; 223, pressing plate; 230, pushing component; 231, fixing frame; 232, inner rotating column; 233, transmission disc; 234, gear ring; 235, adjusting screw; 236, drive shaft; 240, adjusting component; 241, concave block; 242, rotating rudder; 243, convex block; 250, drive component; 251, drive rod; 252, drive gear; 253, drive motor; 260, indicating component; 261, worm gear; 262, pointer; 263, mounting seat; 264, worm; 265, bevel gear; 270, cutting component; 271, cutting seat; 272, perforation; 273, cutting scissors; 274, turntable; 275, boosting arm. Detailed Description of the Preferred Embodiments

[0017] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0018] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0019] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0020] The following will further elaborate on the present application Figures 1-7 in conjunction with the accompanying drawings.

[0021] Please refer to Figures 1-7 , a tensile strength testing device for spinning yarns, comprising a main body module 100 and a testing module 200. The main body module 100 includes a testing table 110. Mounting plates 120 are fixedly connected to both the front end face and the rear end face of the testing table 110. The testing module 200 includes a plurality of tensile components 210 all arranged on the top of the testing table 110. Fixing components 220 are connected to the plurality of tensile components 210. A plurality of pushing components 230 are arranged at the bottom of the inner wall of the testing table 110, and the plurality of pushing components 230 are respectively located between two of the tensile components 210. A plurality of adjusting components 240 are arranged at equal intervals in a straight line on the top of the testing table 110, and the plurality of adjusting components 240 are respectively connected to the plurality of pushing components 230. A driving component 250 is arranged between the two mounting plates 120, and the driving component 250 is connected to the plurality of pushing components 230. A cutting component 270 is arranged at the bottom of the testing table 110, and the cutting component 270 is connected to one of the pushing components 230. A plurality of indicating components 260 are arranged at equal intervals in a straight line on the top of the testing table 110, and the plurality of indicating components 260 are respectively connected to the plurality of adjusting components 240.

[0022] During use, the staff fixes the yarn to be tested in an interleaved form through a plurality of fixing components 220. Subsequently, the staff turns on the driving component 250, and the driving component 250 will drive a plurality of pushing components 230. The plurality of pushing components 230 will conduct a tensile test on the yarn. At the same time, the yarns rub against each other. The staff can operate the adjustment component 240 to adjust each pushing component 230 respectively according to the needs of the tensile test, so that different pushing components 230 can apply different forces, which can simulate more complex usage scenarios, thus making the detection effect better. It is also convenient for the staff to observe the friction effect on the interleaved part and understand the yarn performance. The staff can also observe the indicating component 260. When the adjustment component 240 drives the pushing component 230, the indicating component 260 will also be driven by the adjustment component 240. The staff can observe the indicating component 260 to know the specific force of the tensile test, thereby making the detection process more accurate.

[0023] The tensile component 210 includes a sliding groove formed at the top of the test bench 110. Two movable blocks 211 are slidably connected inside the sliding groove. The pushing component 230 is connected to the top of one of the movable blocks 211. A spring 212 is fixedly connected between the two movable blocks 211. A steering rod 213 is fixedly connected to the bottom of the other movable block 211. One end of the steering rod 213 is fixedly connected to a push plate 214. The pushing component 230 includes a fixing frame 231 fixedly connected to the bottom inner wall of the test bench 110. An inner rotating column 232 is rotatably connected inside the fixing frame 231. One end of the inner rotating column 232 is fixedly connected to a transmission disk 233. A gear ring 234 is fixedly connected to the outer surface of the transmission disk 233. The pushing component 230 further includes a long groove formed in the transmission disk 233. An adjusting screw 235 is rotatably connected inside the long groove. The top end of the adjusting screw 235 extends to the outside of the transmission disk 233. A lifting block is slidably connected inside the long groove. A driving shaft 236 is rotatably connected to the lifting block. The inner part of the lifting block is threadedly connected to the outer surface of the adjusting screw 235. The outer surface of the driving shaft 236 contacts the outer surface of the push plate 214. The adjusting component 240 includes a rotating rudder 242 rotatably connected to the top of the test bench 110. The bottom end of the rotating rudder 242 extends into the test bench 110 and is fixedly connected to a convex block 243. The top end of the adjusting screw 235 is fixedly connected to a concave block 241. The concave block 241 is movably connected to the convex block 243. The fixing component 220 includes a fixing seat 221 fixedly connected to the top of one of the movable blocks 211. A fixing bolt 222 is threadedly connected to the top of the fixing seat 221. A pressing plate 223 is slidably connected inside the fixing seat 221. The top of the pressing plate 223 is rotatably connected to the bottom end of the fixing bolt 222. The driving component 250 includes a driving rod 251 rotatably connected between two mounting plates 120. A plurality of driving gears 252 are fixedly connected to the outer surface of the driving rod 251. One of the driving gears 252 meshes with the outer surface of the gear ring 234. A driving motor 253 is fixedly connected to one of the mounting plates 120. The output shaft of the driving motor 253 is fixedly connected to one end of the driving rod 251.

[0024] Rotate the fixing bolt 222, and the fixing bolt 222 drives the pressing plate 223 to descend to fix the yarn, so that multiple sections of yarn are fixed between multiple fixing seats 221 in a staggered form. Subsequently, the operator turns on the drive motor 253, and the drive rod 251 will drive multiple drive gears 252. The drive gears 252 will drive the gear ring 234 to rotate. The gear ring 234 will drive the transmission disk 233 and the inner rotating column 232 to rotate. The transmission disk 233 will reciprocally push two push plates 214 through the drive shaft 236. The push plate 214 will push one of the movable blocks 211 through the steering rod 213, so that one of the movable blocks 211 pulls the spring 212, and the spring 212 is stretched to generate elastic force, so that the fixing assembly 220 applies a tensile force to one end of the yarn. Subsequently, one of the push plates 214 will be reset, and the other push plate 214 is pushed by the drive shaft 236, and then a tensile force is applied to the other end of the yarn. Repeating this operation makes the yarns rub against each other. The operator can not only check whether the yarn has a tendency to break, but also check the wear condition of the yarn in this state, so as to know the state of the yarn in such a tensile force environment. The operator can operate the rotation rudder 242 to drive the convex block 243, and the convex block 243 will drive the adjustment screw 235 to rotate through the concave block 241. The adjustment screw 235 can drive the lifting block to move, so as to drive the drive shaft 236 to move and change its position. The change in the position of the drive shaft 236 will change the distance for subsequently pushing the push plate 214, and then change the stretched length of the spring 212 and the tensile force. The tensile force can be adjusted to a unified state for multiple pushing assemblies 230, or the multiple pushing assemblies 230 can be adjusted to different states, so as to provide different tensile forces for different yarns, so as to simulate more complex usage conditions.

[0025] The indicating assembly 260 includes a worm gear 261 rotatably connected to the top of the test bench 110. A plurality of indicating grooves are formed in the top of the worm gear 261. A pointer 262 is fixedly connected to the top of the test bench 110. One end of the pointer 262 is located above the indicating groove. The indicating assembly 260 includes two mounting seats 263 both fixedly connected to the top of the test bench 110. A worm 264 is rotatably connected between the interiors of the two mounting seats 263. The outer surface of the worm 264 meshes with the outer surface of the worm gear 261. Tapered gears 265 are fixedly connected to the outer surface of the rotation rudder 242 and one end of the worm 264 respectively. The outer surfaces of the two tapered gears 265 mesh with each other.

[0026] When rotating the rotation rudder 242, through the meshing of the two tapered gears 265, the worm 264 will be rotated. When the worm 264 rotates, it will drive the worm gear 261 to rotate. By observing the position where the pointer 262 points to the indicating groove, the subsequent tensile force on the yarn can be known, so that the detection process is more accurate.

[0027] The cutting component 270 includes a cutting base 271 fixedly connected to the bottom of the inner wall of the test bench 110. A cutting groove is formed inside the cutting base 271. A cutting knife 273 is slidably connected inside the cutting groove. A through hole 272 is formed inside the cutting base 271, and the through hole 272 penetrates the cutting groove. A turntable 274 is fixedly connected to a position near the other end of the outer surface of the inner rotating column 232. A boosting arm 275 is movably connected to the turntable 274, and the boosting arm 275 is movably connected to the cutting knife 273.

[0028] Thread the excess part of the yarn through the through hole 272. When the inner rotating column 232 rotates, it will drive the turntable 274 to rotate. The turntable 274 will drive the cutting knife 273 to perform a reciprocating piston motion through the boosting arm 275, so as to cut the excess part of the yarn and avoid the mess on the surface of the test bench 110 caused by the excess yarn during the test.

[0029] The implementation principle of the embodiments of this application is as follows: When in use, the staff places the yarn to be tested inside the fixing base 221, and then rotates the fixing bolt 222. The fixing bolt 222 drives the pressing plate 223 to descend to fix the yarn, so that multiple sections of yarn are fixed between multiple fixing bases 221 in a staggered form. Subsequently, the staff turns on the driving motor 253, and the driving rod 251 will drive multiple driving gears 252. The driving gears 252 will drive the gear ring 234 to rotate. The gear ring 234 will drive the transmission disc 233 and the inner rotating column 232 to rotate. The transmission disc 233 will reciprocally push two push plates 214 through the driving shaft 236. The push plate 214 will push one of the movable blocks 211 through the steering rod 213, so that one of the movable blocks 211 pulls the spring 212, and the spring 212 is stretched to generate elastic force, thereby enabling the fixing assembly 220 to apply a tensile force to one end of the yarn. Subsequently, one of the push plates 214 will return to its original position, and the other push plate 214 is pushed by the driving shaft 236, thereby applying a tensile force to the other end of the yarn. Repeating this operation makes the yarns rub against each other. The staff can not only check whether the yarn has a tendency to break, but also check the wear condition of the yarn in this state, so as to know the state of the yarn in such a tensile force environment. The staff can operate the rotating rudder 242 to drive the convex block 243. The convex block 243 will drive the adjusting screw 235 to rotate through the concave block 241. The adjusting screw 235 can drive the lifting block to move, thereby driving the driving shaft 236 to move and change its position. The change in the position of the driving shaft 236 will change the distance of pushing the push plate 214 subsequently, and thus change the stretched length of the spring 212 and the pulling force. The pulling force can be adjusted. Multiple pushing assemblies 230 can be adjusted to a unified state, or multiple pushing assemblies 230 can be adjusted to different states, so as to provide different pulling forces for different yarns, thereby simulating more complex usage situations, making the detection more comprehensive. It is also more convenient for the staff to observe the friction influence on the staggered part under different pulling forces, and it is more convenient for the staff to understand the performance of the yarn. When rotating the rotating rudder 242, through the meshing of two bevel gears 265, the worm 264 will rotate. When the worm 264 rotates, it will drive the worm gear 261 to rotate. By observing the position where the pointer 262 points to the indicating groove, the subsequent pulling force on the yarn can be known, making the detection process more accurate. And before the test, the staff can pass the redundant part of the yarn through the perforation 272. When the inner rotating column 232 rotates, it will drive the turntable 274 to rotate. The turntable 274 will drive the cutting scissors 273 to perform a reciprocating piston motion through the boosting arm 275, thereby cutting the redundant part of the yarn to avoid the mess on the surface of the test bench 110 caused by the redundant yarn during the test.

[0030] The above are all the preferred embodiments of this application. Without restricting the protection scope of this application based on this, therefore: All equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A tensile strength testing device for spinning yarns, comprising a main body module (100) and a testing module (200), characterized in that: The main body module (100) includes a test bench (110), and mounting plates (120) are fixedly connected to both the front end face and the rear end face of the test bench (110); The test module (200) includes a plurality of tension components (210) all arranged on the top of the test bench (110). A fixing component (220) is connected to each of the plurality of tension components (210). A plurality of pushing components (230) are arranged at the bottom of the inner wall of the test bench (110), and the plurality of pushing components (230) are respectively located between two of the tension components (210). A plurality of adjusting components (240) are arranged at equal intervals in a straight line on the top of the test bench (110), and the plurality of adjusting components (240) are respectively connected to the plurality of pushing components (230). A driving component (250) is arranged between the two mounting plates (120), and the driving component (250) is connected to the plurality of pushing components (230). A cutting component (270) is arranged at the bottom of the test bench (110), and the cutting component (270) is connected to one of the pushing components (230). A plurality of indicating components (260) are arranged at equal intervals in a straight line on the top of the test bench (110), and the plurality of indicating components (260) are respectively connected to the plurality of adjusting components (240).

2. The tensile strength testing device for spinning yarn according to claim 1, wherein: The tension component (210) includes a sliding groove opened on the top of the test bench (110). Two movable blocks (211) are slidably connected inside the sliding groove. The pushing component (230) is connected to the top of one of the movable blocks (211). A spring (212) is fixedly connected between the two movable blocks (211). A steering rod (213) is fixedly connected to the bottom of the other movable block (211), and a push plate (214) is fixedly connected to one end of the steering rod (213).

3. The tensile strength testing device for spinning yarn according to claim 2, characterized in that: The pushing component (230) includes a fixing frame (231) fixedly connected to the bottom of the inner wall of the test bench (110). An inner rotating column (232) is rotatably connected inside the fixing frame (231). A transmission disk (233) is fixedly connected to one end of the inner rotating column (232), and a gear ring (234) is fixedly connected to the outer surface of the transmission disk (233).

4. A tensile strength testing device for spinning yarns according to claim 3, characterized in that: The pushing component (230) further includes a long groove opened on the transmission disk (233). An adjusting screw (235) is rotatably connected inside the long groove. The top end of the adjusting screw (235) extends to the outside of the transmission disk (233). A lifting block is slidably connected inside the long groove. A driving shaft (236) is rotatably connected to the lifting block. The inside of the lifting block is threadedly connected to the outer surface of the adjusting screw (235), and the outer surface of the driving shaft (236) is in contact with the outer surface of the push plate (214).

5. The tensile strength testing device for spinning yarn according to claim 4, characterized in that: The adjustment assembly (240) includes a rotating rudder (242) rotatably connected to the top of the test bench (110). The bottom end of the rotating rudder (242) extends into the interior of the test bench (110) and is fixedly connected to a convex block (243). The top end of the adjustment screw (235) is fixedly connected to a concave block (241), and the concave block (241) is movably connected to the convex block (243).

6. The tensile strength testing device for spinning yarn according to claim 5, wherein: The fixing assembly (220) includes a fixing base (221) fixedly connected to the top of one of the movable blocks (211). A fixing bolt (222) is threadedly connected to the top of the fixing base (221). A pressing plate (223) is slidably connected to the interior of the fixing base (221), and the top of the pressing plate (223) is rotatably connected to the bottom end of the fixing bolt (222).

7. A tensile strength testing device for spinning yarns according to claim 6, characterized in that: The driving assembly (250) includes a driving rod (251) rotatably connected between two mounting plates (120). A plurality of driving gears (252) are fixedly connected to the outer surface of the driving rod (251). The outer surface of one of the driving gears (252) meshes with the outer surface of the gear ring (234). A driving motor (253) is fixedly connected to one of the mounting plates (120), and the output shaft of the driving motor (253) is fixedly connected to one end of the driving rod (251).

8. The tensile strength testing device for spinning yarn according to claim 7, characterized in that: The indicating assembly (260) includes a worm gear (261) rotatably connected to the top of the test bench (110). A plurality of indicating grooves are formed in the top of the worm gear (261). A pointer (262) is fixedly connected to the top of the test bench (110), and one end of the pointer (262) is located above the indicating groove.

9. The tensile strength testing device for spinning yarn according to claim 8, wherein: The indicating assembly (260) includes two mounting seats (263) both fixedly connected to the top of the test bench (110). A worm (264) is rotatably connected between the interiors of the two mounting seats (263). The outer surface of the worm (264) meshes with the outer surface of the worm gear (261). A bevel gear (265) is fixedly connected to the outer surface of both the rotating rudder (242) and one end of the worm (264), and the outer surfaces of the two bevel gears (265) mesh with each other.

10. A tensile strength testing device for spinning yarns according to claim 9, characterized in that: The cutting assembly (270) includes a cutting seat (271) fixedly connected to the bottom of the inner wall of the test bench (110). A cutting groove is formed in the interior of the cutting seat (271). A cutting scissors (273) is slidably connected to the interior of the cutting groove. A perforation (272) is formed in the interior of the cutting seat (271), and the perforation (272) penetrates through the cutting groove. A turntable (274) is fixedly connected to the outer surface of the inner rotating column (232) near the other end. A boosting arm (275) is movably connected to the turntable (274), and the boosting arm (275) is movably connected to the cutting scissors (273).

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