Tension strength testing equipment for wool yarn

Abstract

The invention discloses a tension strength test device for wool yarn, and belongs to the technical field of wool yarn test.The tension strength test device comprises a test frame and a test module, the test module comprises a recording assembly fixedly connected to one side of the test frame, and a rolling assembly is arranged between the two sides of the inner wall of the test frame; by arranging the rolling assembly, the movable assemblies, the self-locking assembly, the drawing pen, the recording assembly and the thrust assembly, when the device is used, continuous tension testing on the yarn can be achieved, whether the yarn is qualified or not can be rapidly tested, and after a large-scale yarn test is completed, the device is convenient to use and high in practicability. According to the yarn breakage display device, a worker can compare line segments drawn on the recording assembly in a unified mode, the breakage condition can be displayed more simply and clearly, the breakage condition can be compared and checked more visually, and the quality problem of yarn can be found conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of wool yarn testing, and more particularly to a tensile strength testing device for wool yarn. Background Art

[0002] Yarn is a textile product processed from various textile fibers into a certain fineness. It is used for weaving, rope making, thread making, knitting and embroidery, etc. It is divided into short-staple yarn, continuous filament, etc. Wool yarn and wool thread are generally used for weaving wool sweaters, wool trousers, wool vests, scarves, hats and gloves and weaving various spring and autumn clothing items. In addition to keeping warm, they also have decorative effects. In the process of wool yarn production, a series of quality tests are required, including tensile testing, in order to understand the quality of the produced yarn.

[0003] According to the search, the patent with patent number CN213398002U discloses a yarn tension tester, including a measuring platform and a spring, 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 the upper and lower ends of the spring, first fixed pulleys are fixedly arranged at the two ends of the measuring platform, and a support frame is vertically fixedly arranged at the lower end of the measuring platform. When in use, the yarn to be tested is wound and fixed between the rings, and the yarn is straightened at the same time. Then a suitable spring is selected, and the second hook is hung between the second semicircular rings, so that the T-bars 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.

[0004] With respect to the above-mentioned related technologies, the current tensile testing equipment is usually in the above-mentioned form during actual operation. If the yarn breaks during the tensile test, it is considered unqualified. The current yarn testing usually adopts a random sampling method to draw a specified number of yarns for testing. In the face of a large-scale yarn production environment, the number of samples is relatively large. When facing the continuous testing of a large number of yarns, the current testing equipment cannot easily and quickly record the position of the yarn breaking under continuous tension, which makes it inconvenient to compare the yarn breaking situation more intuitively later, and thus it is not easy to detect the quality problems of the yarn. For this reason, we propose a tensile strength testing device for wool yarn. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a tensile strength testing device for wool yarn, which adopts the following technical solution: A tensile strength testing device for wool yarn comprises a testing frame and a testing module, wherein the testing module comprises a recording component fixedly connected to one side of the testing frame, a rolling component is arranged between the two sides of the inner wall of the testing frame, a plurality of movable components are fixedly connected to the rolling components, a plurality of the movable components are connected to self-locking components, a plurality of the self-locking components are fixedly connected to drawing pens, one of the drawing pens is in contact with the recording component, the recording component is connected to the rolling component, a pressing component is connected to the recording component, a magnetic plate is arranged on the rear end face of the testing frame, the magnetic plate is adapted to the plurality of self-locking components, a thrust component is fixedly connected between the two sides of the inner wall of the testing frame, the thrust component is adapted to the plurality of self-locking components and the plurality of movable components.

[0006] Furthermore, the movable component includes a fixed plate, the top of the fixed plate is fixedly connected to a fixed inner hollow block, the top of the fixed inner hollow block is threadedly connected to a first adjustment screw, the inside of the fixed plate is movably connected to a movable rod, a return spring is fixedly connected between one end of the movable rod and the inner wall of the fixed plate, the other end of the movable rod is fixedly connected to a displacement plate, and a T-shaped slot is provided at the bottom of the fixed plate.

[0007] Furthermore, the movable component also includes a push plate fixedly connected to one side of the displacement plate, the top of the displacement plate is fixedly connected to the inner groove plate, and the bottom of the displacement plate is slidably connected to the top of the base plate.

[0008] Furthermore, the self-locking component includes a movable inner empty block slidably connected between the two sides of the inner wall of the inner groove plate, the top of the movable inner empty block is threadedly connected to a second adjustment screw, one side of the movable inner empty block is fixedly connected to an inner empty seat, a test spring is fixedly connected between the inner empty seat and the inner wall of the inner groove plate, and one of the drawing pens is fixedly connected to the inner empty seat.

[0009] Furthermore, the self-locking component also includes a ratchet block movably connected to the inside of the inner empty seat, the top of the ratchet block is fixedly connected to a magnetic block, a pressing spring is fixedly connected between the top of the magnetic block and the top of the inner wall of the inner empty seat, the magnetic block is adapted to the magnetic plate, a ratchet groove is provided on the top of the displacement plate, and the top of the ratchet groove is movably connected to the bottom end of the ratchet block.

[0010] Furthermore, the rolling assembly includes two rolling rods rotatably connected between the two sides of the inner wall of the test frame, the outer surfaces of the two rolling rods are fixedly connected to two sprockets, and the outer surfaces of each two sprockets are transmission-connected by a chain, and the bottoms of the fixed plate and the bottom plate are respectively fixedly connected to the outer surfaces of the two chains, and one end of one of the rolling rods extends to the outside of the test frame and is fixedly connected to a series gear.

[0011] Furthermore, the recording assembly includes a mounting frame fixedly connected to one side of the test frame, two horizontal rods are rotatably connected to the mounting frame, a paper roll is arranged between the outer surfaces of the two horizontal rods, one end of one of the horizontal rods is fixedly connected to a large gear plate, a driving motor is fixedly installed on the mounting frame, the output shaft of the driving motor is fixedly connected to an incomplete gear, the outer surface of the incomplete gear is meshed with the outer surface of the series gear, and the outer surface of the incomplete gear is adapted to the outer surface of the large gear plate, and the top end of one of the drawing pens is in contact with the bottom surface of the paper roll.

[0012] Furthermore, the thrust assembly includes a transverse plate fixedly connected between two sides of the inner wall of the test frame, a cylinder is fixedly connected to the top of the transverse plate, and one end of the output shaft of the cylinder is close to the push plate.

[0013] Furthermore, the thrust assembly also includes a T-shaped slider fixedly connected to the top of the transverse plate, the cylinder passes through the T-shaped slider, and the top of the T-shaped slider is movably connected to the inner wall of the T-shaped slot.

[0014] Furthermore, the pressing assembly includes a main body block fixedly connected to the top of the inner wall of the mounting frame, a top plate fixedly connected to one side of the main body block, the bottom of the top plate contacts the top surface of the paper roll, the inner wall of the main body block is slidably connected to a U-shaped clamping plate, the U-shaped clamping plate contacts the bottom surface of the paper roll, and a fixing spring is fixedly connected between the bottom of the U-shaped clamping plate and the bottom of the inner wall of the main body block.

[0015] In summary, the present invention includes the following beneficial technical effects: (1) The present invention arranges a rolling component, a movable component, a self-locking component, a drawing pen, a recording component and a thrust component, so that when the device is in use, it can realize continuous tension testing of the yarn, thereby quickly testing whether the yarn is qualified, which is convenient for large-scale yarn testing, and the position where the yarn breaks during the tension test can be obtained by subtracting the total tension test length from the tension length drawn on the recording component. After the large-scale yarn test is completed, the staff can make a unified comparison of the line segments drawn on the recording component, and the breakage situation will be displayed more concisely and clearly, and the breakage situation can be compared and viewed more intuitively, which is convenient for discovering quality problems of the yarn; (2) The present invention provides a magnetic plate and a magnetic block so that the drawing pen can be automatically reset after drawing, without the need for manual reset by the staff, thereby improving the convenience of equipment operation; (3) The present invention provides a top plate, a U-shaped clamping plate and a fixing spring, so that when the drawing pen is drawing, the top plate and the U-shaped clamping plate cooperate to clamp the paper roll, thereby making the paper roll more stable when the drawing pen is drawing, avoiding drawing distortion; (4) The present invention can make the fixed plate more stable by cooperating with the T-shaped slider and the T-shaped slot, thereby preventing the fixed plate from moving with the push plate when the push plate moves, thereby ensuring the accuracy and stability of the equipment during testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the position structure of the series gears of the present invention; Figure 3 It is a schematic structural diagram of the rolling assembly of the present invention; Figure 4 It is a structural schematic diagram of the thrust assembly of the present invention; Figure 5 It is a schematic cross-sectional structural diagram of the movable component of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 It is a structural schematic diagram of the recording component of the present invention; Figure 8 It is a schematic structural diagram of the clamping assembly of the present invention.

[0017] Description of the numbers in the figure: 100. Test stand; 200, test module; 210, rolling assembly; 211, rolling rod; 212, sprocket; 213, chain; 214, series gear; 220, movable assembly; 221, fixed plate; 222, fixed inner empty block; 223, first adjustment screw; 224, movable rod; 225, return spring; 226, bottom plate; 227, displacement plate; 228, push plate; 229, inner groove plate; 230, self-locking assembly; 231, movable inner empty block; 232, second adjustment screw; 233, inner empty seat; 234, ratchet block; 2 35. Ratchet groove; 236. Press spring; 237. Magnetic block; 238. Test spring; 240. Magnetic plate; 250. Drawing pen; 260. Recording assembly; 261. Mounting frame; 262. Horizontal rod; 263. Paper roll; 264. Large gear plate; 265. Driving motor; 266. Incomplete gear; 270. Thrust assembly; 271. Horizontal plate; 272. T-shaped slider; 273. Cylinder; 280. Press assembly; 281. Main block; 282. Top plate; 283. U-shaped clamp; 284. Fixed spring. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] The following is combined with Figure 1-8 The present invention is described in further detail.

[0022] See also Figure 1-8 A tensile strength testing device for wool yarn includes a test frame 100 and a test module 200. The test module 200 includes a recording component 260 fixedly connected to one side of the test frame 100. A rolling component 210 is arranged between the two sides of the inner wall of the test frame 100. A plurality of movable components 220 are fixedly connected to the rolling component 210. A self-locking component 230 is connected to the plurality of movable components 220. A drawing pen 250 is fixedly connected to the plurality of self-locking components 230. One of the drawing pens 250 contacts the recording component 260. The recording component 260 is connected to the rolling component 210. A pressing component 280 is connected to the recording component 260. A magnetic plate 240 is arranged on the rear end face of the test frame 100. The magnetic plate 240 is adapted to the plurality of self-locking components 230. A thrust component 270 is fixedly connected between the two sides of the inner wall of the test frame 100. The thrust component 270 is adapted to the plurality of self-locking components 230 and the plurality of movable components 220.

[0023] When in use, the yarn to be tested is installed between the multiple active components 220 and the multiple self-locking components 230, and then the thrust component 270 is opened, and the thrust component 270 will push the active component 220 to move. When the active component 220 moves, the self-locking component 230 will gradually increase the pulling force on the yarn to test the yarn. When the thrust component 270 pushes the self-locking component 230 to move to the specified position, the yarn has not broken, proving that the yarn is qualified, and the drawing pen 250 will not move. If the yarn breaks during the displacement of the active component 220, the subsequent self-locking component 230 will self-lock and drive the drawing pen 250 to move, thereby drawing a line of a specified length on the recording component 260. After the test is completed, the thrust component 270 is retracted. The self-locking component 230 is automatically reset, and the subsequent recording component 260 is opened. The rolling component 210 is first driven to roll a certain distance. The subsequent recording component 260 adjusts itself to change the drawing position of the subsequent drawing pen 250. Finally, the recording component 260 drives the rolling component 210 again. At this time, another active component 220, the self-locking component 230 and the drawing pen 250 are moved to the position of the thrust component 270. The thrust component 270 is then used to drive the test, so as to continuously test the yarn to determine whether the sampled yarn is qualified. When the self-locking component 230 passes through the magnetic plate 240, the self-locking component 230 will automatically reset. After the test is completed, the recording component 260 is unfolded to compare the breakage situation.

[0024] The movable assembly 220 includes a fixed plate 221, the top of the fixed plate 221 is fixedly connected to a fixed inner empty block 222, the top of the fixed inner empty block 222 is threadedly connected to a first adjusting screw 223, the interior of the fixed plate 221 is movably connected to a movable rod 224, one end of the movable rod 224 is fixedly connected to the inner wall of the fixed plate 221 with a return spring 225, the other end of the movable rod 224 is fixedly connected to a displacement plate 227, the bottom of the fixed plate 221 is provided with a T-shaped card slot, the movable assembly 220 also includes a push plate 228 fixedly connected to one side of the displacement plate 227, the top of the displacement plate 227 is fixedly connected to an inner groove plate 229, the bottom of the displacement plate 227 is slidably connected to the top of the bottom plate 226, and the self-locking assembly 230 includes a sliding connection A movable inner empty block 231 is connected between the two sides of the inner wall of the inner groove plate 229, and the top of the movable inner empty block 231 is threadedly connected with a second adjusting screw 232. One side of the movable inner empty block 231 is fixedly connected with an inner empty seat 233, and a test spring 238 is fixedly connected between the inner empty seat 233 and the inner wall of the inner groove plate 229. One of the drawing pens 250 is fixedly connected to the inner empty seat 233. The self-locking component 230 also includes a ratchet block 234 movably connected inside the inner empty seat 233, and the top of the ratchet block 234 is fixedly connected with a magnetic block 237. A pressing spring 236 is fixedly connected between the top of the magnetic block 237 and the top of the inner wall of the inner empty seat 233. The magnetic block 237 is adapted to the magnetic plate 240, and the top of the displacement plate 227 is provided with The ratchet groove 235, the top of the ratchet groove 235 is movably connected to the bottom end of the ratchet block 234, the rolling assembly 210 includes two rolling rods 211 rotatably connected between the two sides of the inner wall of the test frame 100, the outer surfaces of the two rolling rods 211 are fixedly connected to two sprockets 212, and the outer surfaces of each two sprockets 212 are transmission-connected with a chain 213, the bottom of the fixed plate 221 and the bottom of the bottom plate 226 are respectively fixedly connected to the outer surfaces of the two chains 213, one end of one of the rolling rods 211 extends to the outside of the test frame 100 and is fixedly connected to a series gear 214, and the recording assembly 260 includes a mounting frame 261 fixedly connected to one side of the test frame 100, and the mounting frame 261 is rotatably connected to two horizontal rods 262, two horizontal A paper roll 263 is arranged between the outer surfaces of the placing rods 262, one end of one of the horizontal placing rods 262 is fixedly connected to a large gear plate 264, a driving motor 265 is fixedly installed on the mounting frame 261, and an output shaft of the driving motor 265 is fixedly connected to an incomplete gear 266, the outer surface of the incomplete gear 266 is meshed with the outer surface of the series gear 214, and the outer surface of the incomplete gear 266 is adapted to the outer surface of the large gear plate 264, the top end of one of the drawing pens 250 is in contact with the bottom surface of the paper roll 263, and the thrust assembly 270 includes a horizontal plate 271 fixedly connected between the two sides of the inner wall of the test frame 100, the top of the horizontal plate 271 is fixedly connected to a cylinder 273, and one end of the output shaft of the cylinder 273 is close to the push plate 228.

[0025] The cylinder 273 is opened, and the output shaft of the cylinder 273 will push the push plate 228 to move, and the push plate 228 will drive the displacement plate 227 to slide on the bottom plate 226. When the displacement plate 227 moves, the test spring 238 will be stretched, so that the ratchet groove 235 moves at the bottom of the ratchet block 234, and the ratchet block 234 will reciprocate and rise and fall. As the test spring 238 is stretched, the tension on the yarn will gradually increase, thereby testing the yarn. When the cylinder 273 pushes the test spring 238 to stretch to a specified length, the yarn has not yet broken. If the yarn is qualified, the drawing pen 250 will not move and remain in the original position. If the yarn breaks during the process of the test spring 238 stretching and applying tension, the ratchet block 234 will stay at the specified position inside the ratchet groove 235. When the cylinder 273 pushes the push plate 228 and the displacement plate 227 to move, the drawing pen 250 will also move, thereby drawing a line of specified length on the paper roll 263. After the test is completed, the output shaft of the cylinder 273 shrinks, and the reset spring 225 drives the displacement plate 227 to reset. The subsequent drive motor 265 is turned on. The driving motor 265 drives the incomplete gear 266 to first drive the series gear 214 to roll, and the series gear 214 drives the chain 213 to roll a certain distance through the rolling rod 211 and the sprocket 212. Subsequently, the incomplete gear 266 drives the large gear plate 264, and the large gear plate 264 drives the horizontal rod 262 to rotate, thereby rolling up a part of the paper roll 263, changing the drawing position of the subsequent drawing pen 250, and finally the incomplete gear 266 drives the series gear 214 again, at this time, another movable component 220, the self-locking component 230 and the drawing pen 250 are locked. 250 moves to the position of the cylinder 273, and is subsequently driven by the cylinder 273 to perform tests, thereby continuously testing the yarn to determine whether the sampled yarn is qualified. The magnetic block 237 will stop when passing the magnetic plate 240, and the magnetic block 237 will be automatically lifted by the magnetic plate 240 to separate the ratchet block 234 from the ratchet groove 235. The test spring 238 contracts and resets at this time to facilitate the next yarn test. After the test is completed, the paper roll 263 can be unfolded to compare the breakage situation.

[0026] The thrust assembly 270 further includes a T-shaped slider 272 fixedly connected to the top of the transverse plate 271 , a cylinder 273 passes through the T-shaped slider 272 , and the top of the T-shaped slider 272 is movably connected to the inner wall of the T-shaped slot.

[0027] During the test, the cooperation between the T-shaped slider 272 and the T-shaped card slot can make the fixed plate 221 more stable, so as to prevent the fixed plate 221 from following the movement when the push plate 228 moves. When the fixed plate 221 switches, it will fall off the T-shaped slider 272, and the T-shaped card slot of the other fixed plate 221 will continue to be set on the T-shaped slider 272, so as to ensure the stability of the operation of the device. The pressing assembly 280 includes a main body block 281 fixedly connected to the top of the inner wall of the mounting frame 261, a top plate 282 fixedly connected to one side of the main body block 281, the bottom of the top plate 282 contacts the top surface of the paper roll 263, a U-shaped clamping plate 283 is slidably connected to the inner wall of the main body block 281, the U-shaped clamping plate 283 contacts the bottom surface of the paper roll 263, and a fixing spring 284 is fixedly connected between the bottom of the U-shaped clamping plate 283 and the bottom of the inner wall of the main body block 281.

[0028] When the drawing pen 250 draws on the paper roll 263, the drawing pen 250 will be located at the bottom of the top plate 282, and the top plate 282 and the U-shaped clamping plate 283 cooperate to clamp the paper roll 263 so that the paper roll 263 is more stable when the drawing pen 250 draws, avoiding drawing distortion.

[0029] The implementation principle of the embodiment of the present invention is as follows: when in use, the yarn to be tested is installed inside the multiple fixed inner empty blocks 222 and the multiple movable inner empty blocks 231, and the yarn is fixed by rotating the second adjusting screw 232 and the first adjusting screw 223. Then the cylinder 273 is opened, and the output shaft of the cylinder 273 will push the push plate 228 to move, and the push plate 228 will drive the displacement plate 227 to slide on the bottom plate 226. When the displacement plate 227 moves, the test spring 238 will be stretched, so that the ratchet groove 235 can move at the bottom of the ratchet block 234, and the ratchet block 234 will reciprocate and rise and fall. As the test spring 238 is stretched, the tension on the yarn will gradually increase, thereby testing the yarn. When the dynamic test spring 238 is stretched to the specified length, the yarn has not broken yet, proving that the yarn is qualified, and the drawing pen 250 will not move and remain in the original position. If the yarn breaks during the process of the test spring 238 stretching and applying tension, the ratchet block 234 will stay at the specified position inside the ratchet groove 235. When the cylinder 273 pushes the push plate 228 and the displacement plate 227 to move, the drawing pen 250 will also move, thereby drawing a line of specified length on the paper roll 263. After the test is completed, the output shaft of the cylinder 273 shrinks, and the reset spring 225 drives the displacement plate 227 to reset. Subsequently, the drive motor 265 is turned on, and the drive motor 265 drives the incomplete gear 266 to first drive the series gear 214 to roll, and the series gear 214 The transmission chain 213 rolls a certain distance through the rolling rod 211 and the sprocket 212, and then the incomplete gear 266 drives the large gear plate 264, and the large gear plate 264 drives the horizontal rod 262 to rotate, thereby rewinding a part of the paper roll 263, changing the drawing position of the subsequent drawing pen 250, and finally the incomplete gear 266 drives the series gear 214 again, at this time, another movable component 220, the self-locking component 230 and the drawing pen 250 will be moved to the position of the cylinder 273, and then the cylinder 273 will drive the test, so as to continuously test the yarn, and then judge whether the sampled yarn is qualified, and when the magnetic block 237 passes the magnetic plate 240, it will stop, and the magnetic block 237 will be magnetically attracted by the magnetic plate 240. The ratchet block 234 is lifted up, so that the ratchet block 234 is separated from the ratchet groove 235. The test spring 238 is contracted and reset at this time, which is convenient for the next yarn test. After the test is completed, the paper roll 263 can be unfolded to compare the breakage situation. Since the stretched length of the test spring 238 is fixed during the test, the total stretched length minus the length of the line drawn by the paper roll 263 can know at what position the yarn breaks when the spring is stretched. When the drawing pen 250 draws on the paper roll 263, the drawing pen 250 will be located at the bottom of the top plate 282, and the top plate 282 and the U-shaped clamping plate 283 cooperate to clamp the paper roll 263 so that the paper roll 263 is more stable when the drawing pen 250 draws, avoiding drawing distortion. During the test,The cooperation between the T-shaped slider 272 and the T-shaped card slot can make the fixed plate 221 more stable, and prevent the fixed plate 221 from following the movement when the push plate 228 moves. When the fixed plate 221 switches, it will fall off the T-shaped slider 272, and the T-shaped card slot of the other fixed plate 221 will continue to be set on the T-shaped slider 272, thereby ensuring the working stability of the device.

[0030] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tensile strength testing device for wool yarn, comprising a testing frame (100) and a testing module (200), characterized in that: The test module (200) comprises a recording component (260) fixedly connected to one side of the test frame (100); a rolling component (210) is arranged between two sides of the inner wall of the test frame (100); a plurality of movable components (220) are fixedly connected to the rolling component (210); a plurality of the movable components (220) are connected to self-locking components (230); a plurality of the self-locking components (230) are fixedly connected to drawing pens (250); one of the drawing pens (250) is connected to the recording component (260); 0), the recording component (260) is connected to the rolling component (210), the recording component (260) is connected to the pressing component (280), the rear end surface of the test frame (100) is provided with a magnetic plate (240), the magnetic plate (240) is compatible with a plurality of self-locking components (230), and a thrust component (270) is fixedly connected between two sides of the inner wall of the test frame (100), and the thrust component (270) is compatible with the plurality of self-locking components (230) and the plurality of movable components (220).

2. A tensile strength testing device for wool yarn according to claim 1, characterized in that: The movable assembly (220) comprises a fixed plate (221), the top of the fixed plate (221) is fixedly connected to a fixed inner hollow block (222), the top of the fixed inner hollow block (222) is threadedly connected to a first adjustment screw (223), the interior of the fixed plate (221) is movably connected to a movable rod (224), one end of the movable rod (224) is fixedly connected to the inner wall of the fixed plate (221) with a return spring (225), the other end of the movable rod (224) is fixedly connected to a displacement plate (227), and the bottom of the fixed plate (221) is provided with a T-shaped slot.

3. A tensile strength testing device for wool yarn according to claim 2, characterized in that: The movable assembly (220) further comprises a push plate (228) fixedly connected to one side of the displacement plate (227), the top of the displacement plate (227) is fixedly connected to an inner groove plate (229), and the bottom of the displacement plate (227) is slidably connected to the top of the bottom plate (226).

4. The tensile strength testing device for wool yarn according to claim 3, characterized in that: The self-locking assembly (230) comprises a movable inner hollow block (231) slidably connected between two sides of the inner wall of the inner groove plate (229); a second adjusting screw (232) is threadedly connected to the top of the movable inner hollow block (231); an inner hollow seat (233) is fixedly connected to one side of the movable inner hollow block (231); a test spring (238) is fixedly connected between the inner hollow seat (233) and the inner wall of the inner groove plate (229); and one of the drawing pens (250) is fixedly connected to the inner hollow seat (233).

5. The tensile strength testing device for wool yarn according to claim 4, characterized in that: The self-locking component (230) further comprises a ratchet block (234) movably connected to the interior of the inner hollow seat (233); a magnetic block (237) is fixedly connected to the top of the ratchet block (234); a pressing spring (236) is fixedly connected between the top of the magnetic block (237) and the top of the inner wall of the inner hollow seat (233); the magnetic block (237) is adapted to the magnetic plate (240); a ratchet groove (235) is provided on the top of the displacement plate (227); and the top of the ratchet groove (235) is movably connected to the bottom of the ratchet block (234).

6. The tensile strength testing device for wool yarn according to claim 5, characterized in that: The rolling assembly (210) comprises two rolling rods (211) rotatably connected between two sides of the inner wall of the test frame (100); the outer surfaces of the two rolling rods (211) are fixedly connected to two sprockets (212); a chain (213) is transmission-connected between the outer surfaces of each two sprockets (212); the bottoms of the fixed plate (221) and the bottom plate (226) are respectively fixedly connected to the outer surfaces of the two chains (213); one end of one of the rolling rods (211) extends to the outside of the test frame (100) and is fixedly connected to a series gear (214).

7. A tensile strength testing device for wool yarn according to claim 6, characterized in that: The recording assembly (260) comprises a mounting frame (261) fixedly connected to one side of the test frame (100); two parallel rods (262) are rotatably connected to the mounting frame (261); a paper roll (263) is arranged between the outer surfaces of the two parallel rods (262); one end of one of the parallel rods (262) is fixedly connected to a large gear plate (264); a driving motor (265) is fixedly mounted on the mounting frame (261); an output shaft of the driving motor (265) is fixedly connected to an incomplete gear (266); the outer surface of the incomplete gear (266) meshes with the outer surface of the series gear (214); and the outer surface of the incomplete gear (266) matches the outer surface of the large gear plate (264); and the top end of one of the drawing pens (250) contacts the bottom surface of the paper roll (263).

8. The tensile strength testing device for wool yarn according to claim 7, characterized in that: The thrust assembly (270) comprises a transverse plate (271) fixedly connected between two sides of the inner wall of the test frame (100), a cylinder (273) being fixedly connected to the top of the transverse plate (271), and one end of the output shaft of the cylinder (273) being close to the push plate (228).

9. The tensile strength testing device for wool yarn according to claim 8, characterized in that: The thrust assembly (270) further comprises a T-shaped slider (272) fixedly connected to the top of the transverse plate (271), the cylinder (273) passes through the T-shaped slider (272), and the top of the T-shaped slider (272) is movably connected to the inner wall of the T-shaped slot.

10. A tensile strength testing device for wool yarn according to claim 9, characterized in that: The pressing assembly (280) comprises a main body block (281) fixedly connected to the top of the inner wall of the mounting frame (261); a top plate (282) is fixedly connected to one side of the main body block (281); the bottom of the top plate (282) contacts the top surface of the paper roll (263); a U-shaped clamping plate (283) is slidably connected to the inner wall of the main body block (281); the U-shaped clamping plate (283) contacts the bottom surface of the paper roll (263); and a fixing spring (284) is fixedly connected between the bottom of the U-shaped clamping plate (283) and the bottom of the inner wall of the main body block (281).

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