A continuous sewing thread quality testing device

Abstract

The present invention relates to the technical field of sewing thread tension testing devices, and discloses a continuous sewing thread quality testing device, including: a base; a fixing component, which is used to fix a plurality of sewing threads, the fixing component including a rotating column rotatably arranged on the upper surface of the base, and a plurality of fixing frames fixedly arranged on the outer surface of the rotating column in a circumferential array, the fixing component also including a connecting plate arranged at the bottom end of the fixing frame, and a fixing ring is fixedly arranged on the upper surface of the connecting plate for facilitating bolting of the ends of the sewing threads; a testing component, the testing component including a sliding block slidably arranged on the upper surface of the base, and a vertical rod fixedly arranged on the upper surface of the sliding block. By setting the testing component, after the sewing threads are fixed, the sewing threads can be automatically stretched, which is convenient for applying a stable tension to the sewing threads, while reducing the workload of personnel and improving the efficiency of the test.

Description

Technical Field

[0001] The invention relates to the technical field of sewing thread tension testing devices, and more specifically, to a continuous sewing thread quality testing device. Background Art

[0002] Sewing thread is the thread needed for knitted clothing products. It can be divided into three categories according to the raw materials: natural fiber sewing thread, synthetic fiber sewing thread and mixed sewing thread. During the production process of sewing thread, it is necessary to test the quality of sewing thread. Among them, tensile test of sewing thread is a common quality test method.

[0003] When performing a tensile test on a sewing thread, a tensile testing device is required. However, the traditional method of performing a tensile test on a sewing thread is to perform the test by manual pulling. It is not convenient to fix the sewing thread when performing the test by manual pulling, and it is impossible to apply a stable tensile force, thereby increasing the labor intensity of the staff, reducing the work efficiency, and being not conducive to people's use.

[0004] To this end, the present invention provides a continuous sewing thread quality testing device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The present invention provides a continuous sewing thread quality testing device, comprising: A base, and a transparent cover body arranged on the upper surface of the base, and a PLC controller is arranged on the side of the transparent cover body; A fixing assembly, which is used to fix a plurality of sewing threads, the fixing assembly comprising a rotating column rotatably arranged on the upper surface of the base, and a plurality of fixing frames fixedly arranged on the outer surface of the rotating column in a circumferential array, the fixing assembly also comprising a connecting plate arranged at the bottom end of the fixing frame, and a fixing ring is fixedly arranged on the upper surface of the connecting plate for facilitating bolting of the ends of the sewing threads; A test assembly is used to perform a tensile test on a fixed sewing thread, the test assembly includes a sliding block slidably arranged on the upper surface of a base, and a vertical rod fixedly arranged on the upper surface of the sliding block, and a Z-shaped clamping plate for clamping the sewing thread is slidably arranged on the surface of the vertical rod, the test assembly also includes a first motor arranged on the side of the base for driving the sliding block to move, and a second motor fixedly arranged on the top of the vertical rod for driving the Z-shaped clamping plate to rise and fall.

[0007] By adopting the above technical solution, the purpose of stably controlling the tensile force of the sewing thread can be achieved, so that the force of stretching the sewing thread is constant, which is convenient for applying stable tension to the sewing thread, while reducing the workload of personnel and improving the efficiency of testing.

[0008] Preferably, a positioning hole is opened at the top of the fixing frame, and a locking bolt is threadedly connected to the inner wall of the positioning hole, and a locking plate is rotatably provided at the threaded end of the locking bolt.

[0009] By adopting the above technical solution, the locking plate can effectively fix the top end of the sewing thread by twisting the locking bolt.

[0010] Preferably, a rectangular opening is formed at the end of the Z-shaped clamping plate, and two symmetrical electric push rods are embedded in the inner wall of the rectangular opening, and a fixing plate is fixed to the pushing ends of the two electric push rods.

[0011] By adopting the above technical solution, the two electric push rods can be extended to drive the two fixing plates to move toward the middle at the same time to effectively clamp the sewing thread.

[0012] Preferably, a mounting groove is provided on the upper surface of the connecting plate, and a hydraulic rod is fixedly provided on the inner bottom wall of the mounting groove, a contact sensor is fixedly provided on the telescopic end of the hydraulic rod, two springs are fixedly provided on the upper surface of the connecting plate and the lower surface of the fixed frame, and the contact sensor, the first motor and the second motor are electrically connected to the PLC controller through wires.

[0013] By adopting the above technical solution, the connecting plate can be driven to move upward during the process of pulling the sewing thread, thereby driving the contact sensor to move upward. When the contact sensor contacts the fixed frame, the contact sensor transmits a signal to the PLC controller, and the PLC controller automatically controls the second motor to turn off.

[0014] Preferably, a fixed disk is fixedly provided on the outer surface of the rotating column, and a plurality of groups of fixed cylinders are fixedly provided on the upper surface of the fixed disk in a circular array, the plurality of fixed cylinders respectively correspond to a plurality of fixed frames, and each two fixed cylinders form a group, and a limited telescopic column is slidably provided on the inner wall of the fixed cylinder, and the top end of the limited telescopic column is fixedly connected to the lower surface of the connecting plate.

[0015] By adopting the above technical solution, the two limiting telescopic columns can be driven to extend upwards during the upward movement of the connecting plate, thereby effectively ensuring the stability of the connecting plate when it moves upwards.

[0016] Preferably, a slide groove is provided on the upper surface of the base, and the output end of the first motor extends to the inside of the slide groove and is fixed with a transverse threaded column, the sliding block is slidably connected to the inner wall of the slide groove, and a transverse threaded hole is provided on the side of the sliding block and is threadedly connected to the outer surface of the transverse threaded column.

[0017] By adopting the above technical solution, the sliding block can be driven to move automatically through the rotation of the transverse threaded column.

[0018] Preferably, a strip-shaped opening is provided on the surface of the vertical rod, and the output end of the second motor extends to the inside of the strip-shaped opening and is fixed with a vertical threaded column, the end of the Z-shaped clamping plate is slidably connected to the inner wall of the strip-shaped opening, and the upper surface of the Z-shaped clamping plate is provided with a vertical threaded hole threadedly connected to the outer surface of the vertical threaded column.

[0019] By adopting the above technical solution, the Z-shaped clamping plate can be driven to automatically move up and down through the rotation of the vertical threaded column.

[0020] Preferably, a rectangular cavity is opened inside the base, and the bottom end of the rotating column extends into the interior of the rectangular cavity. A switching component for switching the fixed frame is arranged inside the rectangular cavity. The switching component includes a first connecting column fixed at the bottom end of the rotating column, and a second connecting column is rotatably arranged on the inner bottom wall of the rectangular cavity.

[0021] By adopting the above technical solution, the purpose of automatically switching sewing threads can be achieved by switching components, and then the purpose of continuously testing multiple sewing threads can be achieved, which effectively improves the test efficiency.

[0022] Preferably, the switching assembly also includes an extension plate fixed on the side of the sliding block, the extension plate extends to the interior of the rectangular cavity at one end away from the sliding block, and the inner wall of the rectangular cavity is provided with a sliding opening extending to the interior of the rectangular groove for the extension plate to slide, a toothed disc is fixed on the surface of the second connecting column, and a straight toothed plate meshing with the toothed disc is fixed on the surface of the extension plate.

[0023] By adopting the above technical solution, the toothed disc can be driven to rotate by the spur plate during the process of the extension plate moving to the left.

[0024] Preferably, a ratchet mechanism is provided at the bottom end of the first connecting column and the top end of the second connecting column, the ratchet mechanism includes a connecting cylinder rotatably arranged on the inner wall of the rectangular cavity, the bottom end and the top end of the connecting cylinder are both provided with mounting holes, the top outer surface of the second connecting column is rotatably connected to the inner wall of the mounting hole, the bottom outer surface of the first connecting column is fixedly connected to the inner wall of the mounting hole, a connecting column is fixedly provided at the top end of the second connecting column, and a ratchet is fixedly provided on the surface of the connecting column, and a rotating column is rotatably provided on the inner wall of the connecting column, a pawl corresponding to the ratchet is fixedly provided on the surface of the rotating column, and a clockwork spring is fixedly provided at the bottom and the top end of the rotating column for facilitating the resetting of the rotating column and the pawl.

[0025] By adopting the above technical solution, under the action of the ratchet mechanism, the extension plate can drive the rotating column to rotate when it moves to the left, but cannot drive the rotating column to rotate when it moves to the right.

[0026] The beneficial effects of the present invention are: The continuous sewing thread quality testing device described in the present invention is provided with a fixing component so that when testing the sewing thread, the device can first tie one end of the sewing thread to the fixing ring, pull the sewing thread upward to make the sewing thread pass through the positioning hole at the top of the fixing frame, and then tighten the locking bolt so that the locking plate can effectively clamp and fix the sewing thread, thereby realizing rapid fixation of the sewing thread.

[0027] The continuous sewing thread quality testing device described in the present invention, by setting a testing component, can automatically stretch the sewing thread after the sewing thread is fixed, and can achieve the purpose of stably controlling the stretching force of the sewing thread, so that the final force of the stretched sewing thread is constant, which is convenient for applying stable tension to the sewing thread, while reducing the workload of personnel and improving the efficiency of the test.

[0028] The continuous sewing thread quality testing device described in the present invention, by setting a switching component, can drive the tested sewing thread to leave the position opposite to the Z-shaped clamping plate during the movement of the Z-shaped clamping plate to the left, and drive the untested sewing thread to automatically enter the position opposite to the Z-shaped clamping plate, thereby achieving the purpose of automatically switching the sewing thread, and further achieving the purpose of continuously testing multiple sewing threads, effectively improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] 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 internal structure of the transparent cover body of the present invention; Figure 3 The present invention Figure 2 The enlarged structural diagram at A in the middle; Figure 4 The present invention Figure 2 The enlarged structural diagram at B in the middle; Figure 5 It is a rear view structural schematic diagram of the present invention; Figure 6 The present invention Figure 5 The enlarged structural diagram at C in the middle; Figure 7 It is a schematic diagram of the cross-sectional structure of the base of the present invention; Figure 8 The present invention Figure 7 The enlarged structural diagram at D in the middle; Fig. 9 It is a schematic diagram of the top cross-sectional structure of the base of the present invention; Fig.10 It is a schematic diagram of the internal structure of the connecting tube of the present invention; Fig.11 It is a schematic diagram of the top-sectional structure of the connecting tube of the present invention.

[0030] In the figure: 100, base; 200, transparent cover; 300, PLC controller; 400, fixing assembly; 401, rotating column; 402, fixing frame; 403, connecting plate; 404, fixing ring; 405, locking bolt; 406, locking plate; 500, test assembly; 501, sliding block; 502, vertical rod; 503, Z-shaped clamping plate; 504, first motor; 505, second motor; 506, electric push rod; 507, fixing plate; 508, hydraulic rod; 509, contact sensor; 5010, fixing plate; 5011, fixing cylinder; 5012, position-limiting telescopic column; 5013, horizontal threaded column; 5014, vertical threaded column; 5015, spring; 600, switching assembly; 601, first connecting column; 602, second connecting column; 603, extension plate; 604, toothed disc; 605, spur plate; 606, ratchet mechanism; 6061, connecting cylinder; 6062, connecting column; 6063, ratchet; 6064, rotating column; 6065, pawl; 6066, clockwork spring. DETAILED DESCRIPTION

[0031] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples. Example

[0032] like Figures 1 to 11 As shown, a continuous sewing thread quality testing device according to an embodiment of the present invention is shown in FIG. Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6, comprising: a base 100, and a transparent cover 200 arranged on the upper surface of the base 100, the front of the transparent cover 200 is hinged with a transparent door panel to facilitate the replacement of the sewing thread, and the side of the transparent cover 200 is provided with a PLC controller 300; a fixing component 400, which is used to fix a plurality of sewing threads, the fixing component 400 comprises a rotating column 401 rotatably arranged on the upper surface of the base 100, and a plurality of fixing frames 402 fixedly arranged on the outer surface of the rotating column 401 in a circumferential array, the fixing component 400 also comprises a connecting plate 403 arranged at the bottom end of the fixing frame 402, and the upper surface of the connecting plate 403 is fixedly provided with There is a fixing ring 404 for bolting the end of the sewing thread; a test component 500, which is used to perform a tensile test on the sewing thread after being fixed, the test component 500 includes a sliding block 501 slidably set on the upper surface of the base 100, and a vertical rod 502 fixed on the upper surface of the sliding block 501, and a Z-shaped clamping plate 503 for clamping the sewing thread is slidably set on the surface of the vertical rod 502, and the test component 500 also includes a first motor 504 set on the side of the base 100 for driving the sliding block 501 to move, and a second motor 505 fixed on the top of the vertical rod 502 for driving the Z-shaped clamping plate 503 to rise and fall.

[0033] Specifically, the purpose of stably controlling the tensile strength of the sewing thread can be achieved, so that the final strength of the stretched sewing thread is constant, which is convenient for applying a stable tensile force to the sewing thread, while reducing the workload of personnel and improving the efficiency of the test.

[0034] Please refer to Figure 2 , Figure 3 A positioning hole is provided at the top of the fixing frame 402 , and a locking bolt 405 is threadedly connected to the inner wall of the positioning hole, and a locking plate 406 is rotatably provided at the threaded end of the locking bolt 405 .

[0035] Specifically, the present invention sets a fixing component 400 so that when the device is testing the sewing thread, one end of the sewing thread can be first fastened to the fixing ring 404, and the sewing thread can be pulled upward to pass through the positioning hole at the top of the fixing frame 402, and then the locking bolt 405 can be tightened to make the locking plate 406 effectively clamp and fix the sewing thread, thereby achieving rapid fixation of the sewing thread.

[0036] Please refer to Figure 5 , Figure 6 A rectangular opening is formed at the end of the Z-shaped clamping plate 503 , and two symmetrical electric push rods 506 are embedded in the inner wall of the rectangular opening. A fixing plate 507 is fixed to the pushing ends of the two electric push rods 506 .

[0037] Specifically, the two electric push rods 506 can be extended to drive the two fixing plates 507 to move toward the middle at the same time to effectively clamp the sewing thread.

[0038] Please refer to Figure 3 , Figure 4 A mounting groove is provided on the upper surface of the connecting plate 403, and a hydraulic rod 508 is fixedly provided on the inner bottom wall of the mounting groove. A contact sensor 509 is fixedly provided on the telescopic end of the hydraulic rod 508. Two springs 5015 are fixedly provided on the upper surface of the connecting plate 403 and the lower surface of the fixed frame 402. The contact sensor 509, the first motor 504 and the second motor 505 are all electrically connected to the PLC controller 300 through wires.

[0039] Specifically, the connecting plate 403 can be driven to move upward during the process of pulling the sewing thread, thereby driving the contact sensor 509 to move upward. When the contact sensor 509 contacts the fixed frame 402, the contact sensor 509 transmits a signal to the PLC controller 300, and the PLC controller 300 automatically controls the second motor 505 to turn off.

[0040] Please refer to Figure 4 A fixed disk 5010 is fixedly provided on the outer surface of the rotating column 401, and a plurality of groups of fixed cylinders 5011 are fixedly provided on the upper surface of the fixed disk 5010 in a circular array. The plurality of fixed cylinders 5011 correspond to the plurality of fixed frames 402 respectively, and every two fixed cylinders 5011 form a group. A limited telescopic column 5012 is slidably provided on the inner wall of the fixed cylinder 5011, and the top end of the limited telescopic column 5012 is fixedly connected to the lower surface of the connecting plate 403.

[0041] Specifically, the two limiting telescopic columns 5012 can be driven to extend upwards during the upward movement of the connecting plate 403, thereby effectively ensuring the stability of the connecting plate 403 when moving upwards.

[0042] Please refer to Figure 5 , Figure 7 A slide groove is provided on the upper surface of the base 100, and the output end of the first motor 504 extends to the inside of the slide groove and is fixed with a transverse threaded column 5013. The sliding block 501 is slidably connected to the inner wall of the slide groove, and a transverse threaded hole threadedly connected to the outer surface of the transverse threaded column 5013 is provided on the side of the sliding block 501.

[0043] Specifically, the sliding block 501 can be driven to move automatically by the rotation of the transverse threaded column 5013 .

[0044] Please refer to Figure 5 A strip opening is provided on the surface of the vertical rod 502, and the output end of the second motor 505 extends to the inside of the strip opening and is fixed with a vertical threaded column 5014. The end of the Z-shaped clamping plate 503 is slidably connected to the inner wall of the strip opening, and a vertical threaded hole is provided on the upper surface of the Z-shaped clamping plate 503 and is threadedly connected to the outer surface of the vertical threaded column 5014.

[0045] Specifically, the Z-shaped clamping plate 503 can be automatically lifted and lowered by the rotation of the vertical threaded column 5014 .

[0046] In this embodiment, through the testing component 500, after the sewing thread is fixed, the purpose of stably controlling the tensile force of the sewing thread can be achieved, so that the final force of the stretched sewing thread is constant, which is convenient for applying stable tension to the sewing thread, while reducing the workload of personnel and improving the efficiency of the test. Example

[0047] Based on the first embodiment, refer to Figures 7 to 11 , and the difference from the first embodiment is: Please refer to Figure 7 , Figure 8 A rectangular cavity is opened inside the base 100, and the bottom end of the rotating column 401 extends into the inside of the rectangular cavity. A switching component 600 for switching the fixed frame 402 is arranged inside the rectangular cavity. The switching component 600 includes a first connecting column 601 fixed at the bottom end of the rotating column 401, and a second connecting column 602 is rotatably arranged on the inner bottom wall of the rectangular cavity.

[0048] Specifically, the purpose of automatically switching the sewing threads can be achieved by switching the component 600, thereby achieving the purpose of continuously testing a plurality of sewing threads, thereby effectively improving the test efficiency.

[0049] Please refer to Figure 8 , Fig. 9 The switching assembly 600 also includes an extension plate 603 fixedly mounted on the side of the sliding block 501, and one end of the extension plate 603 away from the sliding block 501 extends to the inside of the rectangular cavity, and the inner wall of the rectangular cavity is provided with a sliding opening extending to the inside of the rectangular groove for the extension plate 603 to slide, a toothed plate 604 is fixedly mounted on the surface of the second connecting column 602, and a straight toothed plate 605 meshing with the toothed plate 604 is fixedly mounted on the surface of the extension plate 603.

[0050] Specifically, the toothed disc 604 can be driven to rotate by the spur plate 605 when the extension plate 603 moves to the left.

[0051] Please refer to Fig.10 , Fig.11A ratchet mechanism 606 is provided at the bottom end of the first connecting column 601 and the top end of the second connecting column 602. The ratchet mechanism 606 includes a connecting tube 6061 rotatably set on the inner wall of the rectangular cavity. The bottom and top ends of the connecting tube 6061 are provided with mounting holes. The top outer surface of the second connecting column 602 is rotatably connected to the inner wall of the mounting hole. The bottom outer surface of the first connecting column 601 is fixedly connected to the inner wall of the mounting hole. A connecting column 6062 is fixedly provided on the top of the second connecting column 602, and a ratchet 6063 is fixedly provided on the surface of the connecting column 6062. A rotating column 6064 is rotatably provided on the inner wall of the connecting tube 6061. A pawl 6065 corresponding to the ratchet 6063 is fixedly provided on the surface of the rotating column 6064. A clockwork spring 6066 is fixedly provided at the bottom and top ends of the rotating column 6064 for facilitating the resetting of the rotating column 6064 and the pawl 6065.

[0052] Specifically, under the action of the ratchet mechanism 606 , the extension plate 603 can drive the rotating column 401 to rotate when it moves to the left, and cannot drive the rotating column 401 to rotate when it moves to the right.

[0053] In the present embodiment, by setting a switching component 600, when the first motor 504 rotates and drives the sliding block 501 to move to the left, the movement of the sliding block 501 can drive the extension plate 603 to move to the left, and when the Z-shaped clamping plate 503 moves to the left, the tested sewing thread is driven to leave the position opposite to the Z-shaped clamping plate 503, and the untested sewing thread is driven to automatically enter the position opposite to the Z-shaped clamping plate 503, thereby achieving the purpose of automatically switching the sewing thread, and further achieving the purpose of continuously testing multiple sewing threads, thereby effectively improving the test efficiency.

[0054] Among them, it should be particularly noted that when the Z-shaped clamping plate 503 moves to the left, the spur plate 605 drives the toothed disc 604 to rotate. When the spur plate 605 is about to disengage from the toothed disc 604, the leftmost side of the Z-shaped clamping plate 503 is flush with the sewing thread, that is, the sewing thread has not entered the rectangular opening on the Z-shaped clamping plate 503, and continues to move to the left. At this time, the toothed disc 604 no longer rotates, that is, the positions of the rotating column 401 and the fixed frame 402 no longer change, which can ensure that the sewing thread smoothly enters the rectangular opening.

[0055] How it works In the initial state, one end of the sewing thread is first fastened to the fixing ring 404, and the sewing thread is pulled upward to pass through the positioning hole at the top of the fixing frame 402, and then the locking bolt 405 is tightened so that the locking plate 406 can effectively clamp and fix the sewing thread. Figure 2As shown, at this time, the sewing thread on the fixed frame 402 directly opposite to the Z-shaped clamping plate 503 has been tested, and the first motor 504 is started to drive the horizontal threaded column 5013 to rotate, and the rotation of the horizontal threaded column 5013 drives the sliding block 501 to move, and the movement of the sliding block 501 drives the vertical rod 502 to move, and the rotation of the vertical rod 502 drives the Z-shaped clamping plate 503 to move leftward. In the process of the first motor 504 driving the sliding block 501 to move leftward, the movement of the sliding block 501 can drive the extension plate 603 to move leftward, and the extension plate 603 moves leftward. During the movement, the toothed disc 604 can be driven to rotate under the action of the straight tooth plate 605, and the rotation of the toothed disc 604 drives the second connecting column 602 to rotate, and the rotation of the second connecting column 602 drives the ratchet 6063 to rotate, and the rotation of the ratchet 6063 drives the connecting cylinder 6061 and the first connecting column 601 to rotate under the action of the pawl 6065, and the rotation of the first connecting column 601 drives the rotating column 401 to rotate, and the rotation of the rotating column 401 realizes the movement and switching of the fixed frame 402, that is, it can drive the test completion in the process of the Z-shaped clamping plate 503 moving to the left. The finished sewing thread is separated from the position directly opposite to the Z-shaped clamping plate 503, and the untested sewing thread is automatically driven into the position directly opposite to the Z-shaped clamping plate 503, so as to realize the purpose of automatically switching the sewing thread, and finally the sewing thread fixed on the rightmost side of the rotating column 401 enters the rectangular opening on the Z-shaped clamping plate 503, and the two electric push rods 506 are started to drive the two fixing plates 507 to clamp and fix the surface of the sewing thread, and then the second motor 505 is started to drive the vertical threaded column 5014 to rotate, and the rotation of the vertical threaded column 5014 drives the Z-shaped clamping The plate 503 moves upward to stretch the sewing thread, and drives the connecting plate 403 to move upward under the action of the spring 5015 until the contact sensor 509 contacts the fixed frame 402. At this time, the contact sensor 509 transmits a signal to the PLC controller 300, and the PLC controller 300 automatically controls the second motor 505 to turn off, thereby achieving the purpose of stably controlling the stretching force of the sewing thread, making the final force of the stretched sewing thread constant, facilitating the application of stable tension to the sewing thread, and at the same time reducing the workload of personnel and improving the efficiency of the test.

[0056] An example of the present specific implementation mode is described above, but the present embodiment is not limited to the above-mentioned specific implementation mode, which is merely illustrative and not restrictive. A person skilled in the art may make many forms inspired by the present embodiment, all of which are protected by the present embodiment.

Claims

1. A continuous sewing thread quality testing device, characterized in that: include: A base (100), and a transparent cover (200) arranged on the upper surface of the base (100), wherein a PLC controller (300) is arranged on the side of the transparent cover (200); A fixing assembly (400) for fixing a plurality of sewing threads, the fixing assembly (400) comprising a rotating column (401) rotatably arranged on the upper surface of a base (100), and a plurality of fixing frames (402) fixedly arranged in a circular array on the outer surface of the rotating column (401), the fixing assembly (400) further comprising a connecting plate (403) arranged at the bottom end of the fixing frame (402), and a fixing ring (404) is fixedly arranged on the upper surface of the connecting plate (403) for facilitating bolting of the ends of the sewing threads; A test assembly (500) is used to perform a tensile test on a fixed sewing thread, the test assembly (500) comprising a sliding block (501) slidably arranged on the upper surface of a base (100), and a vertical rod (502) fixedly arranged on the upper surface of the sliding block (501), and a Z-shaped clamping plate (503) for clamping the sewing thread is slidably arranged on the surface of the vertical rod (502), the test assembly (500) further comprising a first motor (504) arranged on the side of the base (100) for driving the sliding block (501) to move, and a second motor (505) fixedly arranged on the top of the vertical rod (502) for driving the Z-shaped clamping plate (503) to rise and fall.

2. A continuous sewing thread quality testing device according to claim 1, characterized in that: A positioning hole is provided at the top of the fixing frame (402), and a locking bolt (405) is threadedly connected to the inner wall of the positioning hole. A locking plate (406) is rotatably provided at the threaded end of the locking bolt (405).

3. A continuous sewing thread quality testing device according to claim 1, characterized in that: A rectangular opening is provided at the end of the Z-shaped clamping plate (503), and two symmetrical electric push rods (506) are embedded in the inner wall of the rectangular opening. A fixing plate (507) is fixed to the pushing ends of the two electric push rods (506).

4. A continuous sewing thread quality testing device according to claim 3, characterized in that: The upper surface of the connecting plate (403) is provided with a mounting groove, and the inner bottom wall of the mounting groove is fixedly provided with a hydraulic rod (508), the telescopic end of the hydraulic rod (508) is fixedly provided with a contact sensor (509), the upper surface of the connecting plate (403) and the lower surface of the fixed frame (402) are fixedly provided with two springs (5015), and the contact sensor (509), the first motor (504) and the second motor (505) are all electrically connected to the PLC controller (300) via wires.

5. A continuous sewing thread quality testing device according to claim 1, characterized in that: A fixed disk (5010) is fixedly disposed on the outer surface of the rotating column (401), and a plurality of groups of fixed cylinders (5011) are fixedly disposed on the upper surface of the fixed disk (5010) in a circular array, the plurality of groups of fixed cylinders (5011) respectively corresponding to a plurality of fixed frames (402), and every two fixed cylinders (5011) form a group, and a limited telescopic column (5012) is slidably disposed on the inner wall of the fixed cylinder (5011), and the top end of the limited telescopic column (5012) is fixedly connected to the lower surface of the connecting plate (403).

6. A continuous sewing thread quality testing device according to claim 1, characterized in that: A slide groove is provided on the upper surface of the base (100), and the output end of the first motor (504) extends into the interior of the slide groove and is fixedly provided with a transverse threaded column (5013), the sliding block (501) is slidably connected to the inner wall of the slide groove, and a transverse threaded hole is provided on the side surface of the sliding block (501) and is threadedly connected to the outer surface of the transverse threaded column (5013).

7. A continuous sewing thread quality testing device according to claim 1, characterized in that: A strip-shaped opening is provided on the surface of the vertical rod (502), and the output end of the second motor (505) extends into the interior of the strip-shaped opening and is fixedly provided with a vertical threaded column (5014), the end of the Z-shaped clamping plate (503) is slidably connected to the inner wall of the strip-shaped opening, and a vertical threaded hole is provided on the upper surface of the Z-shaped clamping plate (503) and is threadedly connected to the outer surface of the vertical threaded column (5014).

8. A continuous sewing thread quality testing device according to claim 1, characterized in that: A rectangular cavity is provided inside the base (100), and the bottom end of the rotating column (401) extends into the interior of the rectangular cavity. A switching component (600) for switching the fixed frame (402) is provided inside the rectangular cavity. The switching component (600) comprises a first connecting column (601) fixedly arranged at the bottom end of the rotating column (401), and a second connecting column (602) is rotatably provided on the inner bottom wall of the rectangular cavity.

9. A continuous sewing thread quality testing device according to claim 8, characterized in that: The switching assembly (600) further comprises an extension plate (603) fixedly mounted on a side of the sliding block (501); one end of the extension plate (603) away from the sliding block (501) extends into the interior of the rectangular cavity; an inner wall of the rectangular cavity is provided with a sliding opening extending into the interior of the rectangular groove for the extension plate (603) to slide; a toothed disc (604) is fixedly mounted on the surface of the second connecting column (602); and a straight toothed plate (605) meshing with the toothed disc (604) is fixedly mounted on the surface of the extension plate (603).

10. A continuous sewing thread quality testing device according to claim 9, characterized in that: A ratchet mechanism (606) is provided at the bottom end of the first connecting column (601) and the top end of the second connecting column (602). The ratchet mechanism (606) comprises a connecting cylinder (6061) rotatably arranged on the inner wall of the rectangular cavity. The bottom and top ends of the connecting cylinder (6061) are both provided with mounting holes. The top outer surface of the second connecting column (602) is rotatably connected to the inner wall of the mounting hole. The bottom outer surface of the first connecting column (601) is fixedly connected to the inner wall of the mounting hole. The second connecting column (602) A connecting column (6062) is fixedly provided at the top end of the connecting column (6062), and a ratchet (6063) is fixedly provided on the surface of the connecting column (6062), and a rotating column (6064) is rotatably provided on the inner wall of the connecting cylinder (6061), and a ratchet (6065) corresponding to the ratchet (6063) is fixedly provided on the surface of the rotating column (6064), and a spring (6066) is fixedly provided at the bottom and top end of the rotating column (6064) for facilitating the resetting of the rotating column (6064) and the ratchet (6065).

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