Unfolded strength detection equipment for yarn production

Abstract

The invention belongs to the technical field of yarn detection equipment, and particularly relates to expanded strength detection equipment for yarn production, which comprises an operation table, two shells are fixedly connected to the top of the operation table, the tops of the two shells are open, a loading plate is arranged above the two shells, expansion assemblies are arranged on the outer surfaces of the two shells, and the expansion assemblies are arranged on the outer surfaces of the two shells. A mounting plate is fixedly connected to the top of the loading plate, a plurality of clamping assemblies distributed at equal intervals are arranged on the outer surface of the mounting plate and used for stably clamping yarns, and a clamping assembly used for fixing the ends of the yarns is arranged at the top of the mounting plate. A second fixing assembly used for fixing the other end of the yarn is arranged on the outer surface of the transverse plate, the multiple clamping assemblies and the multiple clamping assemblies are arranged, the multiple pieces of yarn can be detected at the same time, and therefore the sampling error is reduced to a certain degree; and the quantity of the detected yarns can be adjusted according to requirements, so that the strength distribution condition of the whole batch of yarns can be reflected more comprehensively.

Description

Technical Field

[0001] The invention belongs to the technical field of yarn testing equipment, and in particular relates to an unfolded strength testing equipment for yarn production. Background Art

[0002] In the textile industry, yarn strength is one of the key indicators to measure its quality. Yarn strength is not only related to the durability and stability of subsequent fabrics, but also directly affects the overall quality of the fabric and the market competitiveness of the final product. Therefore, in the yarn production process, yarn strength testing is an important part of ensuring product quality.

[0003] After searching, the patent with publication number CN118566018A discloses a yarn tensile strength detection device, including a tensile testing machine body and an upper test end and a lower test end installed on the tensile testing machine, an auxiliary clamping mechanism including a clamping member, the clamping member is connected to a moving member for driving it to move laterally, the clamping member includes a base and two slides slidably installed on the base, and the clamping member also includes a first driving member for driving the two slides to move closer to or away from each other; through the auxiliary clamping mechanism, continuous detection of the same roll of yarn is achieved on the tensile testing machine, avoiding the problem of heavy workload caused by the need for staff to repeatedly intercept and clamp the yarn, ensuring the consistency of the sampling and clamping process, and facilitating the reliability of the detection results, and through the clamping member, when the hollow sides of the two clamps are connected, the yarn will be able to rotate freely to release its own torsional stress after unwinding, thereby improving the reliability of the detection results.

[0004] Although the above-mentioned detection device can enable the yarn to rotate freely to release the torsional stress existing in it after unwinding, thereby improving the reliability of the detection result, the strength of a single yarn may be affected by many factors, such as fiber quality, production process, etc. If only a single yarn is tested, the test result may not be able to fully reflect the strength distribution of the entire batch of yarns, which may cause sampling errors and make the test result unable to accurately represent the quality level of the entire batch of yarns. Summary of the invention

[0005] The object of the present invention is to provide an unfolded strength detection device for yarn production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an expandable strength testing device for yarn production, comprising an operating table, two shells are fixedly connected to the top of the operating table, the tops of the two shells are open, loading plates are provided above the two shells, and the outer surfaces of the two shells are provided with expansion components, the top of the loading plate is fixedly connected to a mounting plate, the outer surface of the mounting plate is provided with a plurality of equidistantly distributed clamping components, the top of the mounting plate is provided with a clamping component, a cross plate is fixedly connected between the inner walls on both sides of the operating table, the outer surface of the cross plate is provided with a plurality of equidistantly distributed second through holes, and the outer surface of the cross plate is provided with a second fixing component.

[0007] Preferably, the unfolding assembly includes a first motor, a threaded rod and a slider, the inside of the two shells are slidably connected with a slider, the top of the two sliders are fixedly connected to the bottom of the loading plate, a threaded rod is rotatably connected between the inner walls on both sides of one of the shells, the outer surface of the shell is fixedly installed with a first motor, the output end of the first motor is fixedly connected to the threaded rod, and the threaded rod is threadedly sleeved with the corresponding slider.

[0008] Preferably, the clamping assembly includes a fixed plate, a movable plate, a fixed block and a rectangular groove, two fixed blocks are fixedly connected to the top of the loading plate, a fixed plate is fixedly connected between the two fixed blocks, rectangular grooves are provided on the adjacent outer surfaces of the two fixed blocks, and a movable plate is slidably connected between the two rectangular grooves.

[0009] Preferably, the clamping assembly also includes a pressure block, a connecting plate, a spring, a connecting column and a first placement groove, the interior of the movable plate is fixedly connected with a plurality of equidistantly distributed connecting columns, a plurality of connecting columns are located below the movable plate and are fixedly connected with a pressure block, a plurality of the pressure blocks are arranged in an arc shape, the outer surfaces of the plurality of connecting columns are elastically connected with springs, a plurality of the springs are located between the fixed plate and the movable plate, a plurality of connecting columns are located on the upper side of the fixed plate and are fixedly connected with a connecting plate, a plurality of equidistantly distributed first placement grooves are opened on the top of the loading plate, and a plurality of the pressure blocks are plugged into the corresponding first placement grooves.

[0010] Preferably, the clamping assembly includes a connecting block, a first connecting rod, a second connecting rod, a mounting shell, a gear and a third connecting rod. The mounting plate is arranged in an L shape, and the outer surface of the mounting plate close to the cross plate is fixedly connected to a plurality of equidistantly distributed connecting blocks, the outer surfaces of the plurality of connecting blocks are fixedly connected to the mounting shell, the interior of the mounting shell is rotatably connected to two gears, the two gears are meshed and connected, the outer surfaces of the two gears are fixedly connected to the third connecting rod, the outer surfaces of the two third connecting rods are rotatably connected to the first connecting rod, and the outer surfaces of the two first connecting rods are rotatably connected to the second connecting rod.

[0011] Preferably, a second motor is fixedly mounted on the outer surface of the mounting shell, an output end of the second motor is fixedly connected to a nearby gear, and adjacent outer surfaces of two second connecting rods are fixedly connected to a plurality of anti-sliding blocks.

[0012] Preferably, a plurality of first through holes distributed at equal intervals are formed on the outer surface of the mounting plate.

[0013] Preferably, the second fixing component includes a clamping block, a screw and a second placement groove, the outer surface of the cross plate is provided with a plurality of equally spaced second placement grooves, a clamping block is inserted into each of the plurality of second placement grooves, the outer surface of the clamping block is threadedly connected with a screw, and the plurality of clamping blocks are in active contact with the yarn.

[0014] Preferably, a rotating shaft is rotatably connected between the inner walls on both sides of the operating table, and a plurality of equally spaced guide wheels are fixedly connected to the outer surface of the rotating shaft.

[0015] Preferably, a displacement sensor is fixedly mounted on the outer surface of the shell, a pressure sensor is fixedly mounted on the top of the loading plate, a PLC controller is fixedly mounted on the outer surface of the operating table, the pressure sensor and the displacement sensor are wirelessly connected to the PLC controller, and the plurality of the second motors and the first motor are all controlled by the PLC controller.

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

[0017] 1. The present invention can efficiently unfold, clamp and detect the strength of yarns through automated and intelligent settings, significantly improving the detection efficiency; by setting up multiple clamping components and clamping components, multiple yarns can be detected at the same time, thereby reducing the sampling error to a certain extent; and the number of yarns to be detected can be adjusted as needed to more comprehensively reflect the strength distribution of the entire batch of yarns.

[0018] 2. The anti-sliding block in the clamping assembly of the present invention ensures that the yarn remains stable during the detection process, preventing detection result errors caused by shaking or slipping; the spring in the clamping assembly provides continuous elastic force, ensuring that the pressing block tightly clamps the yarn, further enhancing the stability of the yarn.

[0019] 3. The cooperation between the clamping assembly and the clamping assembly of the present invention enables the staff to easily place the yarn at the designated position and complete the fixing and release of the yarn through simple operations; the setting of the clamping block and the screw in the second fixing assembly enables the staff to flexibly adjust the fixing position of the yarn to meet the needs of yarn testing of different specifications.

[0020] 4. The present invention is highly flexible and can adapt to the detection needs of yarns of different specifications and materials by adjusting the positions and quantities of the clamping component, the clamping component and the second fixing component so as to detect yarns of different batches and specifications.

[0021] 5. The present invention is provided with a clamping assembly and a clamping assembly, which ensure the stability of the yarn during the detection process through the tight clamping of the anti-sliding block and the pressure block, prevent the yarn from shaking or slipping, and thus ensure the reliability of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a side view structural schematic diagram of the present invention;

[0024] Figure 3 For the present invention Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0025] Figure 4 It is a schematic diagram of the structure of the clamping assembly of the present invention;

[0026] Figure 5 For the present invention Figure 1 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 6 It is a structural schematic diagram of the first placement slot of the present invention;

[0028] Figure 7 For the present invention Figure 1 Schematic diagram of the enlarged structure at C in the middle;

[0029] Figure 8 It is a structural schematic diagram of a rectangular groove of the present invention;

[0030] Fig. 9 It is a schematic structural diagram of the second placement slot of the present invention.

[0031] In the figure: 1, operating table; 2, housing; 3, unfolding assembly; 301, first motor; 302, threaded rod; 303, slider; 4, loading plate; 5, clamping assembly; 501, fixed plate; 502, moving plate; 503, pressing block; 504, connecting plate; 505, spring; 506, fixed block; 507, rectangular groove; 508, connecting column; 509, first placement groove; 6, clamping assembly; 601, mounting plate; 602, first Through hole; 603, connecting block; 604, second motor; 605, first connecting rod; 606, second connecting rod; 607, mounting shell; 608, gear; 609, third connecting rod; 610, anti-sliding block; 7, cross plate; 701, second through hole; 8, second fixing assembly; 801, snap-in block; 802, screw; 803, second placement slot; 9, pressure sensor; 10, displacement sensor; 11, PLC controller; 12, guide wheel. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1-Figure 9 , the present invention provides a technical solution:

[0034] A deployment strength testing device for yarn production, comprising an operating table 1, wherein two shells 2 are fixedly connected to the top of the operating table 1, the tops of the two shells 2 are open, a loading plate 4 is arranged above the two shells 2, the outer surfaces of the two shells 2 are provided with deployment components 3, a mounting plate 601 is fixedly connected to the top of the loading plate 4, a plurality of equally distributed clamping components 6 are arranged on the outer surface of the mounting plate 601, the plurality of clamping components 6 are used to clamp and stabilize the yarn, a clamping component 5 for fixing the yarn end is arranged on the top of the mounting plate 601, a transverse plate 7 is fixedly connected between the inner walls on both sides of the operating table 1, a plurality of equally distributed second through holes 701 are opened on the outer surface of the transverse plate 7, a second fixing component 8 for fixing the other end of the yarn is arranged on the outer surface of the transverse plate 7; when the yarn is fully deployed, the other end of the yarn is manually passed through the second through hole 701 on the transverse plate 7, and placed on the clamping block 801 of the second fixing component 8.

[0035] Furthermore, the unfolding component 3 includes a first motor 301, a threaded rod 302 and a slider 303. The insides of the two shells 2 are slidably connected with the sliders 303. The tops of the two sliders 303 are fixedly connected to the bottom of the loading plate 4. The threaded rod 302 is rotatably connected between the inner walls of the two sides of one of the shells 2. The first motor 301 is fixedly installed on the outer surface of the shell 2. The output end of the first motor 301 is fixedly connected to the threaded rod 302. The threaded rod 302 is threadedly sleeved with the corresponding slider 303. The PLC controller 11 controls the first motor 301 to start. The output end of the first motor 301 drives the threaded rod 302 to rotate. Since the threaded rod 302 is threadedly sleeved with the slider 303, the slider 303 will slide and rise along the inside of the shell 2, thereby driving the loading plate 4 and the mounting plate 601 thereon, the clamping assembly 6 and the clamping assembly 5 to move as a whole. As the loading plate 4 moves, the yarn is gradually unfolded, and the displacement sensor 10 monitors the moving distance of the loading plate 4, that is, the unfolding length of the yarn in real time.

[0036] Furthermore, the clamping assembly 5 includes a fixed plate 501, a movable plate 502, a fixed block 506 and a rectangular groove 507. Two fixed blocks 506 are fixedly connected to the top of the loading plate 4, the fixed plate 501 is fixedly connected between the two fixed blocks 506, and rectangular grooves 507 are provided on the outer surfaces of the two fixed blocks 506 that are close to each other. A movable plate 502 is slidably connected between the two rectangular grooves 507, and the movable plate 502 slides in the rectangular groove 507.

[0037] Furthermore, the clamping assembly 5 also includes a pressing block 503, a connecting plate 504, a spring 505, a connecting column 508 and a first placement groove 509. The interior of the movable plate 502 is fixedly connected with a plurality of connecting columns 508 distributed at equal intervals. The plurality of connecting columns 508 are located below the movable plate 502 and are all fixedly connected with the pressing block 503. The plurality of pressing blocks 503 are arranged in an arc shape. The outer surfaces of the plurality of connecting columns 508 are elastically connected with springs 505. The plurality of springs 505 are located between the fixed plate 501 and the movable plate 502. The connecting column 508 is located on the upper side of the fixed plate 501 and is fixedly connected to the connecting plate 504. A plurality of evenly spaced first placement grooves 509 are provided on the top of the loading plate 4. A plurality of pressure blocks 503 are plugged into the corresponding first placement grooves 509. The connecting plate 504 is pushed manually or through an auxiliary mechanism to make the movable plate 502 slide in the rectangular groove 507, thereby driving the pressure block 503 to move downward and contact the yarn. The spring 505 provides elastic force in this process to ensure that the pressure block 503 tightly clamps the yarn, thereby achieving preliminary fixation of the yarn end.

[0038] Furthermore, the clamping assembly 6 includes a connecting block 603, a first connecting rod 605, a second connecting rod 606, a mounting shell 607, a gear 608 and a third connecting rod 609. The mounting plate 601 is arranged in an L shape. The outer surface of the mounting plate 601 close to the cross plate 7 is fixedly connected with a plurality of equidistantly distributed connecting blocks 603. The outer surfaces of the plurality of connecting blocks 603 are all fixedly connected to the mounting shell 607. The interior of the mounting shell 607 is rotatably connected with two gears 608. The two gears 608 are meshed and connected. The outer surfaces of the two gears 608 are fixedly connected. A third connecting rod 609 is connected, and the outer surfaces of the two third connecting rods 609 are rotatably connected to the first connecting rod 605, and the outer surfaces of the two first connecting rods 605 are rotatably connected to the second connecting rod 606. The PLC controller 11 controls the second motor 604 to start, and the output end of the second motor 604 drives the gear 608 to rotate. Since the two gears 608 are meshed and connected, they will rotate synchronously, and through the transmission of the third connecting rod 609, the first connecting rod 605 and the second connecting rod 606, the anti-sliding block 610 approaches the yarn and clamps the yarn.

[0039] Furthermore, a second motor 604 is fixedly mounted on the outer surface of the mounting shell 607, and an output end of the second motor 604 is fixedly connected to a nearby gear 608. The adjacent outer surfaces of the two second connecting rods 606 are fixedly connected to a plurality of anti-sliding blocks 610. The provision of the anti-sliding blocks 610 ensures that the yarn remains stable during the detection process, and prevents the detection results from being affected by shaking or slipping of the yarn.

[0040] Furthermore, a plurality of first through holes 602 equidistantly distributed are provided on the outer surface of the mounting plate 601 . First, one end of the yarn to be tested is passed through the first through hole 602 on the mounting plate 601 , and the end of the yarn is placed in the first placement groove 509 of the clamping assembly 5 .

[0041] Furthermore, the second fixing component 8 includes a clamping block 801, a screw 802 and a second placement groove 803. The outer surface of the cross plate 7 is provided with a plurality of equally spaced second placement grooves 803. The insides of the plurality of second placement grooves 803 are all plugged with clamping blocks 801. The outer surface of the clamping block 801 is threadedly connected with a screw 802. The plurality of clamping blocks 801 are in active contact with the yarn. The staff manually passes the other end of the yarn through the second through hole 701 on the cross plate 7 and places it on the clamping block 801 of the second fixing component 8. Then the staff rotates the screw 802 so that it is threadedly connected to the clamping block 801 and in close contact with the yarn, thereby fixing the other end of the yarn.

[0042] Furthermore, a rotating shaft is rotatably connected between the inner walls on both sides of the operating table 1, and a plurality of equally spaced guide wheels 12 are fixedly connected to the outer surface of the rotating shaft. The arrangement of the guide wheels 12 facilitates the yarn not to deviate during the unfolding process.

[0043] Furthermore, a displacement sensor 10 is fixedly installed on the outer surface of the shell 2, a pressure sensor 9 is fixedly installed on the top of the loading plate 4, and a PLC controller 11 is fixedly installed on the outer surface of the operating table 1. The pressure sensor 9 and the displacement sensor 10 are wirelessly connected to the PLC controller 11. The multiple second motors 604 and the first motor 301 are all controlled by the PLC controller 11. The pressure sensor 9 monitors the stress condition of the yarn under tension in real time and transmits the data to the PLC controller 11. The PLC controller 11 calculates the strength value of the yarn according to the data received from the displacement sensor 10 and the pressure sensor 9, and performs data recording and analysis.

[0044] Working principle: When the present invention is used, firstly, one end of the yarn to be detected is passed through the first through hole 602 on the mounting plate 601, and the end of the yarn is placed in the first placement groove 509 of the clamping assembly 5, and the connecting plate 504 is pushed manually or through an auxiliary mechanism to make the movable plate 502 slide in the rectangular groove 507, driving the pressing block 503 to move downward and contact the yarn, and the spring 505 provides elastic force in this process to ensure that the pressing block 503 tightly clamps the yarn to achieve preliminary fixation of the yarn end, and when the yarn is fully unfolded, the other end of the yarn is manually passed through the second through hole 701 on the horizontal plate 7 and placed on the clamping block 801 of the second fixing assembly 8, and then the screw 802 is rotated so that it is threadedly connected to the clamping block 801 and tightly contacts the yarn to achieve fixation of the other end of the yarn, and the PLC controller 11 controls the first motor 3 01 is started, and the output end of the first motor 301 drives the threaded rod 302 to rotate. Since the threaded rod 302 is threadedly sleeved with the slider 303, the slider 303 will slide and rise along the inside of the shell 2, thereby driving the loading plate 4 and the mounting plate 601, the clamping assembly 6 and the clamping assembly 5 thereon to move as a whole. As the loading plate 4 moves, the yarn is gradually unfolded, and the displacement sensor 10 monitors the moving distance of the loading plate 4 in real time, that is, the unfolding length of the yarn, and transmits the data to the PLC controller 11. While the yarn is unfolding, the PLC controller 11 controls the second motor 604 to start, and its output end drives the gear 608 to rotate. Since the two gears 608 are meshed and connected, they will rotate synchronously, and through the transmission of the third connecting rod 609, the first connecting rod 605 and the second connecting rod 606, the anti-sliding block 610 approaches the yarn and clamps the yarn. The setting of the anti-sliding block 610 ensures that the yarn remains stable during the detection process, and prevents the detection result from being affected by the shaking or slipping of the yarn; the setting of the guide wheel 12 prevents the yarn from shifting during the unfolding process; the pressure sensor 9 monitors the stress condition of the yarn under tension in real time, and transmits the data to the PLC controller 11; the PLC controller 11 calculates the strength value of the yarn based on the data received from the displacement sensor 10 and the pressure sensor 9, and records and analyzes the data.

[0045] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An unfolded strength testing device for yarn production, comprising an operating table (1), characterized in that: The top of the operating table (1) is fixedly connected to two shells (2), the tops of the two shells (2) are open, a loading plate (4) is provided above the two shells (2), the outer surfaces of the two shells (2) are provided with an unfolding assembly (3), the top of the loading plate (4) is fixedly connected to a mounting plate (601), the outer surface of the mounting plate (601) is provided with a plurality of equally distributed clamping assemblies (6), the top of the mounting plate (601) is provided with a clamping assembly (5), a transverse plate (7) is fixedly connected between the inner walls on both sides of the operating table (1), the outer surface of the transverse plate (7) is provided with a plurality of equally distributed second through holes (701), and the outer surface of the transverse plate (7) is provided with a second fixing assembly (8).

2. The unfolded strength testing device for yarn production according to claim 1, characterized in that: The unfolding assembly (3) comprises a first motor (301), a threaded rod (302) and a slider (303); the insides of the two shells (2) are both slidably connected with the slider (303); the tops of the two sliders (303) are fixedly connected to the bottom of the loading plate (4); the threaded rod (302) is rotatably connected between the inner walls of both sides of one of the shells (2); the first motor (301) is fixedly mounted on the outer surface of the shell (2); the output end of the first motor (301) is fixedly connected to the threaded rod (302); and the threaded rod (302) is threadedly sleeved with the corresponding slider (303).

3. The unfolded strength testing device for yarn production according to claim 2, characterized in that: The clamping assembly (5) comprises a fixed plate (501), a movable plate (502), a fixed block (506) and a rectangular groove (507); two fixed blocks (506) are fixedly connected to the top of the loading plate (4); a fixed plate (501) is fixedly connected between the two fixed blocks (506); rectangular grooves (507) are provided on adjacent outer surfaces of the two fixed blocks (506); and a movable plate (502) is slidably connected between the two rectangular grooves (507).

4. The unfolded strength testing device for yarn production according to claim 3, characterized in that: The clamping assembly (5) also includes a pressure block (503), a connecting plate (504), a spring (505), a connecting column (508) and a first placement groove (509); the interior of the movable plate (502) is fixedly connected with a plurality of equidistantly distributed connecting columns (508); the plurality of connecting columns (508) located below the movable plate (502) are fixedly connected with a pressure block (503); the plurality of pressure blocks (503) are arranged in an arc shape; the outer surfaces of the plurality of connecting columns (508) are elastically connected with a spring (505); the plurality of springs (505) are located between the fixed plate (501) and the movable plate (502); the portions of the plurality of connecting columns (508) located on the upper side of the fixed plate (501) are fixedly connected with the connecting plate (504); the top of the loading plate (4) is provided with a plurality of equidistantly distributed first placement grooves (509); the plurality of pressure blocks (503) are plugged into the corresponding first placement grooves (509).

5. The unfolded strength testing device for yarn production according to claim 4, characterized in that: The clamping assembly (6) comprises a connecting block (603), a first connecting rod (605), a second connecting rod (606), a mounting shell (607), a gear (608) and a third connecting rod (609); the mounting plate (601) is arranged in an L shape; the outer surface of the mounting plate (601) close to the cross plate (7) is fixedly connected with a plurality of equidistantly distributed connecting blocks (603); the outer surfaces of the plurality of connecting blocks (603) are fixedly connected with the mounting shell (607); the interior of the mounting shell (607) is rotatably connected with two gears (608); the two gears (608) are meshedly connected; the outer surfaces of the two gears (608) are fixedly connected with the third connecting rod (609); the outer surfaces of the two third connecting rods (609) are rotatably connected with the first connecting rod (605); and the outer surfaces of the two first connecting rods (605) are rotatably connected with the second connecting rod (606).

6. The unfolded strength testing device for yarn production according to claim 5, characterized in that: A second motor (604) is fixedly mounted on the outer surface of the mounting shell (607), an output end of the second motor (604) is fixedly connected to a nearby gear (608), and a plurality of anti-sliding blocks (610) are fixedly connected to adjacent outer surfaces of the two second connecting rods (606).

7. The unfolded strength testing device for yarn production according to claim 6, characterized in that: The outer surface of the mounting plate (601) is provided with a plurality of first through holes (602) distributed at equal intervals.

8. The unfolded strength testing device for yarn production according to claim 7, characterized in that: The second fixing assembly (8) comprises a clamping block (801), a screw rod (802) and a second placement groove (803); the outer surface of the transverse plate (7) is provided with a plurality of second placement grooves (803) distributed at equal intervals; the insides of the plurality of second placement grooves (803) are all plugged with a clamping block (801); the outer surface of the clamping block (801) is threadedly connected with a screw rod (802); and the plurality of clamping blocks (801) are in active contact with the yarn.

9. The unfolded strength testing device for yarn production according to claim 8, characterized in that: A rotating shaft is rotatably connected between the inner walls on both sides of the operating table (1), and a plurality of equally spaced guide wheels (12) are fixedly connected to the outer surface of the rotating shaft.

10. The unfolded strength testing device for yarn production according to claim 9, characterized in that: A displacement sensor (10) is fixedly mounted on the outer surface of the shell (2), a pressure sensor (9) is fixedly mounted on the top of the loading plate (4), a PLC controller (11) is fixedly mounted on the outer surface of the operating table (1), the pressure sensor (9) and the displacement sensor (10) are wirelessly connected to the PLC controller (11), and the plurality of second motors (604) and the first motor (301) are all controlled by the PLC controller (11).

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