A toughness detection device for the production and processing of polyester thread

Abstract

The present invention relates to the technical field of polyester thread detection, and specifically relates to a toughness detection device for polyester thread production and processing, including a base assembly. Through the adaptation of ratchet one and ratchet two and the fixed connection between ratchet two and the lower end of the stretching assembly, when the stretching assembly works, it drives ratchet two to rotate, thereby causing ratchet one to rotate. When ratchet one rotates, it drives rotating shaft one to rotate, and then drives turntable one to rotate. Through the cooperation of turntable one and turntable two, turntable two rotates intermittently, causing the digital display disk to rotate intermittently. When the toughness test of the polyester thread is completed, the stretching assembly resets. At this time, the torsion spring automatically resets, and at the same time drives rotating shaft one, turntable one and ratchet one to rotate in the reverse direction. Through the cooperation of turntable one and turntable two, the digital display disk resets, and the pointer aligns with the initial number on the digital display disk. By reading the number pointed to by the pointer, the elongation rate of the polyester thread can be obtained, and the detection result is more intuitive.

Description

Technical Field

[0001] The present invention relates to the technical field of polyester yarn detection, in particular to a toughness detection device for polyester yarn production and processing. Background Art

[0002] Polyester thread has a wide range of applications, primarily in sewing clothing, shoes, hats, and leather goods. Within the clothing industry, polyester thread is commonly used to sew cotton, synthetic, and blended fabrics. Specialized polyester thread also finds favor in the footwear, hat, and leather industries, where its high strength and wear resistance make it a preferred material. However, prior to use, it requires toughness testing. Existing technology typically uses a tensile tester and accompanying electronic equipment to measure parameters such as elongation during tensile testing.

[0003] The Chinese patent, currently authorized with the number CN118150316B, comprises a comparison detection assembly, a stretching clamping assembly, an equipment bracket, and an electric push cylinder. This invention belongs to the field of cotton yarn testing technology, specifically a cotton yarn toughness testing device. The device can compare the length values of multiple sets of black display tubes that are farthest from the center of a liquid storage tank. The largest value corresponds to the location of the cotton yarn break. This facilitates comparison and marking of the break locations through the comparison detection assembly during multiple tests, enabling rapid determination of the cotton yarn break location and providing more intuitive test results.

[0004] The existing technology mainly has the following shortcomings:

[0005] 1. The existing technology usually uses a tensile tester and supporting electronic equipment to read parameters such as elongation during tensile testing, and the test results are not intuitive enough.

[0006] 2. In the prior art, if the next test is required after the test is completed, the polyester thread needs to be manually re-fixed, the test efficiency is low, and the test process is complicated. Summary of the Invention

[0007] The purpose of the present invention is to provide a toughness detection device for polyester yarn production and processing to solve the problems raised in the above background technology.

[0008] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0009] Provided is a toughness detection device for polyester yarn production and processing, comprising a base assembly, a stretching length observation assembly being rotatably connected to the base assembly, a ratchet wheel 1 being fixedly connected to the upper end of the stretching length observation assembly, the ratchet wheel 1 being adapted to the ratchet wheel 2, the ratchet wheel 2 being fixedly connected to the lower end of the stretching assembly, and an automatic feeding mechanism being fixedly connected to the base assembly;

[0010] The automatic feeding mechanism includes:

[0011] Driven component, the driven component is rotatably connected to the base component, and an intermittent feeding component is also fixedly connected to the base component, and the intermittent feeding component abuts against the upper end of the driven component.

[0012] Further, the base component includes:

[0013] Bracket, the upper end of the bracket is fixedly connected with a workbench;

[0014] The stretching length observation component includes:

[0015] First rotating shaft, the first rotating shaft is rotatably connected to the bottom of the bracket, a first turntable is fixedly connected to the first rotating shaft, the upper end of the first rotating shaft is fixedly connected to a first ratchet wheel, the bottom of the bracket is also rotatably connected to a second rotating shaft, one end of a torsion spring is fixedly connected to the first rotating shaft, the other end of the torsion spring is fixedly connected to the bottom of the bracket, a second turntable is fixedly connected to the second rotating shaft, the second turntable cooperates with the first turntable, the upper end of the second rotating shaft is fixedly connected to a digital display panel, the digital display panel is located above the second turntable, a pointer is fixedly connected to the front edge of the workbench, and the position of the lower end of the pointer is aligned with the edge position of the digital display panel.

[0016] Further, a first push shaft is fixedly connected to the upper end edge of the first turntable, an arc-shaped groove is formed at the edge of the second turntable, the arc-shaped grooves are annularly arranged at the edge of the turntable, and the first push shaft is slidably connected to the arc-shaped groove.

[0017] Further, the stretching component includes:

[0018] Third rotating shaft, the lower end of the third rotating shaft is rotatably connected to the upper end of the first rotating shaft, the third rotating shaft is fixedly connected to a second ratchet wheel, the upper end of the third rotating shaft is fixedly connected to a first connecting rod, two ends of the first connecting rod are respectively rotatably connected to one ends of two second connecting rods, the other ends of the two second connecting rods are respectively rotatably connected to one ends of two third connecting rods, the other ends of the two third connecting rods are respectively fixedly connected to two first sliders, the two first sliders are respectively slidably connected to two slide rails, the two slide rails are fixedly connected to the workbench, and one of the first sliders is fixedly connected to the output end of a cylinder, and the cylinder is fixed on the workbench.

[0019] Further, a first connecting plate and a second connecting plate are fixedly connected to the upper end of the workbench; and

[0020] The driven component includes:

[0021] Push rod, one end of the push rod is rotatably connected to the first connecting plate, the push rod is fixedly connected to one end of a first spring, the other end of the first spring is rotatably connected to the first connecting plate, and the other end of the push rod is rotatably connected to one end of a pawl; and

[0022] A fourth rotating shaft and a fifth rotating shaft are respectively rotatably connected to the lower end and the upper end of the second connecting plate. A third ratchet wheel and a first synchronous pulley are fixedly connected to the fourth rotating shaft. The third ratchet wheel is adapted to a ratchet pawl. A second synchronous pulley and a third turntable are fixedly connected to the fifth rotating shaft. The first synchronous pulley and the second synchronous pulley are driven by a synchronous belt; and

[0023] A second push shaft is fixedly connected to one side of the first slider. A top block is also fixedly connected to the upper end of the first slider.

[0024] Further, the intermittent feeding assembly includes:

[0025] A chute, the lower end of the chute is fixedly connected to the workbench. A connecting hole is formed in the chute. A blocking rod is slidably connected in the connecting hole. One end of the blocking rod is fixedly connected to one end of a second spring. The other end of the second spring is fixedly connected to the outside of the chute. One end of the blocking rod is fixedly connected to a hemispherical block. A hemispherical groove is formed in the third turntable. The hemispherical groove is annularly arranged on the third turntable. The hemispherical block abuts against the plane where the hemispherical groove on the third turntable is located; and

[0026] A plurality of second sliders are also slidably connected in the chute. The plurality of second sliders are slidably connected to the chute. Guide rails are fixedly connected to the plurality of second sliders. Upper clamping blocks are slidably connected to both ends of the guide rail. The upper clamping blocks are fixedly connected to lower clamping blocks through bolts.

[0027] Compared with the prior art, the above one or more technical solutions have the following beneficial effects:

[0028] 1. Through the adaptation of the first ratchet wheel and the second ratchet wheel and the second ratchet wheel being fixedly connected to the lower end of the stretching assembly, when the stretching assembly works, it drives the second ratchet wheel to rotate, and then makes the first ratchet wheel rotate. When the first ratchet wheel rotates, it drives the first rotating shaft to rotate, and then drives the first turntable to rotate. Through the cooperation of the first turntable and the second turntable, the second turntable rotates intermittently, so that the digital display disk rotates intermittently. When the toughness test of the polyester thread is completed, the stretching assembly resets. At this time, the torsion spring automatically resets, and at the same time drives the first rotating shaft, the first turntable and the first ratchet wheel to rotate in the reverse direction. Through the cooperation of the first turntable and the second turntable, the digital display disk resets, and the pointer aligns with the initial number on the digital display disk. By reading the number pointed to by the pointer, the elongation rate of the polyester thread can be obtained, and the detection result is more intuitive.

[0029] 2. During the rotation of the third turntable, when the hemispherical groove rotates to the position corresponding to the hemispherical block, the second spring resets. Under the action of the second spring, the blocking rod slides outward in the connecting hole towards the chute, so that the blocking rod disengages from the lower end of the second slider. The two ends of the polyester thread are respectively clamped by the upper clamping block and the lower clamping block, causing the slider to drive the guide rail, the upper clamping block, the lower clamping block and the polyester thread to slide onto the first slider under the action of gravity. The upper clamping block and the lower clamping block abut against the top block. At the same time, the third turntable continues to rotate until the hemispherical block disengages from the hemispherical groove and stops. At this time, the second spring is compressed, and the other end of the blocking rod extends out of the connecting hole, preventing the next second slider from sliding down, making the efficiency higher and the detection process simpler when multiple rounds of detection of the polyester thread are required.

[0030] 3. When performing a toughness test on the polyester thread, the stretching component is started to stretch the polyester thread to achieve the purpose of testing its toughness. When the stretching component performs a stretching operation on the polyester thread, the stretching component drives the second ratchet to rotate. Through the matching action between the second ratchet and the first ratchet, the second ratchet drives the first ratchet to rotate, and then drives the stretching length observation component to work. After the test is completed, the stretching component resets, and the stretching length observation component automatically resets. At the end of the reset process of the stretching component, it hits the driven component, causing the driven component to work, and then causing the intermittent feeding component to slide onto the stretching component under the action of gravity. This device adopts a pure mechanical structure, with low manufacturing cost and low operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The schematic diagrams in the specification forming a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention.

[0032] In addition, the terms "installed", "set up", "provided with", "connected", "connected to", "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0033] Figure 1 is a schematic three-dimensional structure diagram of the whole of the present invention;

[0034] Figure 2 is a schematic three-dimensional structure diagram of the whole of the first ratchet of the present invention;

[0035] Figure 3 is a schematic three-dimensional structure diagram of the whole of the stretching length observation component of the present invention;

[0036] Figure 4Front view of the overall three-dimensional structure of the stretching length observation component of the present invention;

[0037] Figure 5 Schematic diagram of the overall three-dimensional structure of the second turntable of the present invention;

[0038] Figure 6 Schematic diagram of the overall three-dimensional structure of the stretching component of the present invention;

[0039] Figure 7 Schematic diagram of the overall three-dimensional structure of the driven component of the present invention;

[0040] Figure 8 Schematic diagram of the overall three-dimensional structure of the intermittent feeding component of the present invention;

[0041] Figure 9 Exploded schematic diagram of the overall three-dimensional structure of the intermittent feeding component of the present invention;

[0042] Figure 10 Schematic diagram of the overall three-dimensional structure of the base component of the present invention;

[0043] Figure 11 Enlarged schematic diagram of the overall three-dimensional structure of the third turntable of the present invention;

[0044] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0045] 1. Base component; 11. Bracket; 12. Workbench; 121. First connecting plate; 122. Second connecting plate;

[0046] 2. Stretching length observation component; 21. First rotating shaft; 22. First turntable; 221. First pushing shaft; 23. Second rotating shaft; 24. Torsion spring; 25. Second turntable; 251. Arc groove; 26. Digital display panel; 27. Pointer;

[0047] 3. First ratchet wheel;

[0048] 4. Second ratchet wheel;

[0049] 5. Stretching component; 51. Third rotating shaft; 52. First connecting rod; 53. Second connecting rod; 54. Third connecting rod; 55. First slider; 551. Second pushing shaft; 552. Top block; 56. Slide rail; 57. Cylinder;

[0050] 6. Automatic feeding mechanism; 61. Driven component; 611. Push rod; 612. First spring; 613. Pawl; 614. Fourth rotating shaft; 615. Fifth rotating shaft; 616. Third ratchet; 617. First synchronous pulley; 618. Second synchronous pulley; 6181. Timing belt; 619. Third turntable; 6191. Hemispherical groove; 62. Intermittent feeding component; 621. Slide groove; 6211. Connecting hole; 622. Blocking rod; 6221. Hemispherical block; 623. Second spring; 624. Second slider; 625. Guide rail; 626. Upper clamping block; 627. Lower clamping block. Detailed implementation manner

[0051] In order to enable those skilled in the art to better understand the solution of this application, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0052] Refer to Figure 1-2 As shown, a toughness detection device for the production and processing of polyester yarn includes a base assembly 1. A stretching length observation assembly 2 is rotatably connected to the base assembly 1. The upper end of the stretching length observation assembly 2 is fixedly connected to a first ratchet 3. The first ratchet 3 is adapted to a second ratchet 4. The second ratchet 4 is fixedly connected to the lower end of a stretching assembly 5. An automatic feeding mechanism 6 is also fixedly connected to the base assembly 1; wherein

[0053] The automatic feeding mechanism 6 includes:

[0054] A driven component 61, the driven component 61 is rotatably connected to the base assembly 1. An intermittent feeding component 62 is also fixedly connected to the base assembly 1. The intermittent feeding component 62 abuts against the upper end of the driven component 61.

[0055] When performing a toughness test on the polyester yarn, the stretching assembly 5 is started to stretch the polyester yarn to achieve the purpose of testing its toughness. When the stretching assembly 5 stretches the polyester yarn, the stretching assembly 5 drives the second ratchet 4 to rotate. Through the adaptation of the second ratchet 4 and the first ratchet, the second ratchet 4 drives the first ratchet 3 to rotate, thereby driving the stretching length observation assembly 2 to work. When the test is completed, the stretching assembly 5 resets, and the stretching length observation assembly 2 automatically resets. At the end of the reset process of the stretching assembly 5, it hits the driven component 61, causing the driven component 61 to work, and then causing the intermittent feeding component 62 to slide onto the stretching assembly 5 under the action of gravity.

[0056] Refer to Figure 3-5 As shown in and 10, the base assembly 1 includes:

[0057] A bracket 11, and a workbench 12 is fixedly connected to the upper end of the bracket 11;

[0058] The stretching length observation assembly 2 includes:

[0059] A first rotating shaft 21, the first rotating shaft 21 is rotatably connected to the bottom of the bracket 11, a first turntable 22 is fixedly connected to the first rotating shaft 21, the upper end of the first rotating shaft 21 is fixedly connected to a first ratchet 3, the bottom of the bracket 11 is also rotatably connected to a second rotating shaft 23, one end of a torsion spring 24 is fixedly connected to the first rotating shaft 21, the other end of the torsion spring 24 is fixedly connected to the bottom of the bracket 11, a second turntable 25 is also fixedly connected to the second rotating shaft 23, the second turntable 25 cooperates with the first turntable 22, the upper end of the second rotating shaft 23 is fixedly connected to a digital display disc 26, the digital display disc 26 is located above the second turntable 25, and a pointer 27 is fixedly connected to the front edge of the workbench 12, and the position at the lower end of the pointer 27 is aligned with the edge position of the digital display disc 26.

[0060] Through the adaptation of the first ratchet 3 and the second ratchet 4 and the fixed connection of the second ratchet 4 to the lower end of the stretching assembly 5, when the stretching assembly 5 works, it drives the second ratchet 4 to rotate, thereby causing the first ratchet 3 to rotate. When the first ratchet 3 rotates, it drives the first rotating shaft 21 to rotate, thereby driving the first turntable 22 to rotate. Through the cooperation of the first turntable 22 and the second turntable 25, the second turntable 25 rotates intermittently, causing the digital display disc 26 to rotate intermittently. When the toughness test of the polyester thread is completed, the stretching assembly 5 resets. At this time, the torsion spring 24 automatically resets, and at the same time drives the first rotating shaft 21, the first turntable 22 and the first ratchet 3 to rotate in the reverse direction. Through the cooperation of the first turntable 22 and the second turntable 25, the digital display disc 26 resets, and the pointer 27 is aligned with the initial number on the digital display disc 26.

[0061] A first push shaft 221 is fixedly connected to the upper edge of the first turntable 22, an arc-shaped groove 251 is formed at the edge of the second turntable 25, the arc-shaped grooves 251 are annularly arranged at the edge of the turntable, and the first push shaft 221 is slidably connected to the arc-shaped groove 251.

[0062] When the first turntable 22 rotates, it drives the first push shaft 221 to rotate. When the first push shaft 221 rotates to a position corresponding to the arc-shaped groove 251, during the continuous rotation of the first push shaft 221, it drives the second turntable 25 to rotate until the first push shaft 221 completely disengages from the arc-shaped groove 251, and the second turntable 25 stops rotating. At this time, the number pointed to by the pointer 27 on the digital display disc 26 is the stretching length of the polyester thread.

[0063] Referring to Figure 6 As shown, the stretching assembly 5 includes:

[0064] The third rotating shaft 51, the lower end of the third rotating shaft 51 is rotatably connected to the upper end of the first rotating shaft 21, the third rotating shaft 51 is fixedly connected to the second ratchet 4, the upper end of the third rotating shaft 51 is fixedly connected to the first connecting rod 52, both ends of the first connecting rod 52 are respectively rotatably connected to one end of two second connecting rods 53, the other ends of the two second connecting rods 53 are respectively rotatably connected to one end of two third connecting rods 54, the other ends of the two third connecting rods 54 are respectively fixedly connected to two first sliders 55, the two first sliders 55 are respectively slidably connected to two slide rails 56, the two slide rails 56 are fixedly connected to the workbench 12, one of the first sliders 55 is fixedly connected to the output end of the air cylinder 57, and the air cylinder 57 is fixed on the workbench 12.

[0065] When detecting the toughness of the polyester thread, the air cylinder 57 contracts, and then drives a slider fixedly connected to the output end of the air cylinder 57 to move in a direction away from the middle position of the workbench 12 and drives the third connecting rod 54 to move together. Then, the second connecting rod 53 deflects. Through the deflection of the second connecting rod 53, the third rotating shaft 51 rotates, and then drives the second ratchet 4 to rotate. When the detection is completed, the air cylinder 57 extends. At this time, the third connecting rod 54 deflects in the reverse direction, the second connecting rod 53 rotates in the reverse direction, and the second ratchet 4 rotates in the reverse direction.

[0066] Refer to Figure 7 As shown, a first connecting plate 121 and a second connecting plate 122 are fixedly connected to the upper end of the workbench 12; and

[0067] The driven assembly 61 includes:

[0068] A push rod 611, one end of the push rod 611 is rotatably connected to the first connecting plate 121, the push rod 611 is fixedly connected to one end of a first spring 612, the other end of the first spring 612 is rotatably connected to the first connecting plate 121, and the other end of the push rod 611 is rotatably connected to one end of a ratchet pawl 613; and

[0069] The lower end and the upper end of the second connecting plate 122 are respectively rotatably connected to a fourth rotating shaft 614 and a fifth rotating shaft 615. A third ratchet 616 and a first synchronous pulley 617 are fixedly connected to the fourth rotating shaft 614. The third ratchet 616 is adapted to the ratchet pawl 613. A second synchronous pulley 618 and a third turntable 619 are fixedly connected to the fifth rotating shaft 615. The first synchronous pulley 617 and the second synchronous pulley 618 are driven by a synchronous belt 6181; and

[0070] A second push shaft 551 is fixedly connected to one side of the first slider 55, and a top block 552 is also fixedly connected to the upper end of the first slider 55.

[0071] After the test is completed, the two first sliders 55 approach each other. During the process of the two first sliders 55 approaching each other, when the second push shaft 551 abuts against the push rod 611, during the continuous movement of the first slider 55, the push rod 611 is pushed by the second push shaft 551 to rotate downward on the first connecting plate 121, and the first spring 612 is stretched. Furthermore, the pawl 613 is caused to push the third ratchet wheel 616 and the first synchronous wheel 617 to rotate. Through the transmission of the synchronous belt 6181, the second synchronous wheel 618 and the third turntable 619 are caused to rotate, and further the intermittent feeding assembly 62 operates to perform intermittent feeding. After the feeding is completed, the two first sliders 55 move away from each other. At this time, the first spring 612 resets. When the first spring 612 resets, it pulls the push rod 611 to rotate in the reverse direction until the second push shaft 551 disengages from the push rod 611. During this process, the third ratchet wheel 616 does not rotate.

[0072] Referring to Figure 8-9 and FIG. 11, the intermittent feeding assembly 62 includes:

[0073] a chute 621, the lower end of the chute 621 is fixedly connected to the workbench 12. A connection hole 6211 is formed in the chute 621. A blocking rod 622 is slidably connected in the connection hole 6211. One end of the blocking rod 622 is fixedly connected to one end of a second spring 623, and the other end of the second spring 623 is fixedly connected to the outside of the chute 621. One end of the blocking rod 622 is fixedly connected to a hemispherical block 6221. A hemispherical groove 6191 is formed in the third turntable 619. The hemispherical groove 6191 is annularly arranged on the third turntable 619. The hemispherical block 6221 abuts against the plane where the hemispherical groove 6191 on the third turntable 619 is located; and

[0074] a plurality of second sliders 624 are further slidably connected in the chute 621. The plurality of second sliders 624 are slidably connected to the chute 621. Guide rails 625 are fixedly connected to the plurality of second sliders 624. Upper clamping blocks 626 are slidably connected to both ends of the guide rails 625. The upper clamping blocks 626 are fixedly connected to the lower clamping blocks 627 by bolts.

[0075] During the rotation of the turntable three 619, when the hemispherical groove 6191 rotates to the position corresponding to the hemispherical block 6221, the second spring 623 resets. Under the action of the second spring 623, the blocking rod 622 slides outward from the connecting hole 6211 toward the chute 621, so that the blocking rod 622 disengages from the lower end of the second slider 624. The second slider 624 falls under the action of gravity and disengages from the chute 621. The two ends of the polyester thread are respectively clamped by the upper clamping block 626 and the lower clamping block 627, so that the second slider drives the guide rail 625, the upper clamping block 626, the lower clamping block 627 and the polyester thread to slide onto the first slider 55 together under the action of gravity. The upper clamping block 626 and the lower clamping block 627 abut against the top block 552. At the same time, the turntable three 619 continues to rotate until the hemispherical block 6221 disengages from the hemispherical groove 6191 and stops. At this time, the second spring 623 is compressed, and the other end of the blocking rod 622 extends out of the connecting hole 6211 to prevent the next second slider 624 from sliding downward. After the test is completed, the second slider 624 is taken away.

[0076] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0077] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A toughness detection device for the production and processing of polyester threads, characterized in that: It includes a base assembly (1), on which a stretching length observation assembly (2) is rotatably connected. The upper end of the stretching length observation assembly (2) is fixedly connected with a first ratchet wheel (3), which is adapted to a second ratchet wheel (4). The second ratchet wheel (4) is fixedly connected with the lower end of a stretching assembly (5). An automatic feeding mechanism (6) is also fixedly connected to the base assembly (1). The stretching assembly (5) includes a first slider (55); wherein The automatic feeding mechanism (6) includes: A driven assembly (61) rotatably connected to the base assembly (1). An intermittent feeding assembly (62) is also fixedly connected to the base assembly (1), and the intermittent feeding assembly (62) abuts against the upper end of the driven assembly (61); and The base assembly (1) includes: A bracket (11), the upper end of which is fixedly connected with a workbench (12); A first connecting plate (121) and a second connecting plate (122) are fixedly connected to the upper end of the workbench (12); and The driven assembly (61) includes: A push rod (611), one end of which is rotatably connected to the first connecting plate (121). The push rod (611) is fixedly connected with one end of a first spring (612), and the other end of the first spring (612) is rotatably connected to the first connecting plate (121). The other end of the push rod (611) is rotatably connected to one end of a pawl (613); and A fourth rotating shaft (614) and a fifth rotating shaft (615) are respectively rotatably connected to the lower end and the upper end of the second connecting plate (122). A third ratchet wheel (616) and a first synchronous pulley (617) are fixedly connected to the fourth rotating shaft (614). The third ratchet wheel (616) is adapted to the pawl (613). A second synchronous pulley (618) and a third turntable (619) are fixedly connected to the fifth rotating shaft (615). The first synchronous pulley (617) and the second synchronous pulley (618) are driven by a synchronous belt (6181); and A second push shaft (551) is fixedly connected to one side of the first slider (55), and a top block (552) is also fixedly connected to the upper end of the first slider (55); The intermittent feeding assembly (62) includes: A chute (621), the lower end of which is fixedly connected to the workbench (12). A connecting hole (6211) is formed in the chute (621), and a blocking rod (622) is slidably connected in the connecting hole (6211). The blocking rod (622) is fixedly connected with one end of a second spring (623), and the other end of the second spring (623) is fixedly connected to the outside of the chute (6). One end of the blocking rod (622) is fixedly connected with a hemispherical block (6221). A hemispherical groove (6191) is formed in the third turntable (619), and the hemispherical groove (6191) is annularly arranged on the third turntable (619). The hemispherical block (6221) abuts against the plane where the hemispherical groove (6191) on the third turntable (619) is located; and A plurality of second sliders (624) are also slidably connected in the sliding groove (621). The plurality of second sliders (624) are slidably connected to the sliding groove (621). Guide rails (625) are fixedly connected to the plurality of second sliders (624). Upper clamping blocks (626) are slidably connected to both ends of the guide rail (625). The upper clamping block (626) is fixedly connected to the lower clamping block (627) by bolts.

2. The toughness detection device for polyester thread production and processing according to claim 1, characterized in that: The stretching length observation assembly (2) includes: A first rotating shaft (21), the first rotating shaft (21) is rotatably connected to the bottom of the bracket (11). A first turntable (22) is fixedly connected to the first rotating shaft (21). The upper end of the first rotating shaft (21) is fixedly connected to the first ratchet wheel (3). A second rotating shaft (23) is also rotatably connected to the bottom of the bracket (11). One end of the first rotating shaft (21) is fixedly connected to one end of a torsion spring (24). The other end of the torsion spring (24) is fixedly connected to the bottom of the bracket (11). A second turntable (25) is fixedly connected to the second rotating shaft (23). The second turntable (25) cooperates with the first turntable (22). The upper end of the second rotating shaft (23) is fixedly connected to a digital display disk (26). The digital display disk (26) is located above the second turntable (25). A pointer (27) is fixedly connected to the front edge of the workbench (12). The position of the lower end of the pointer (27) is aligned with the edge of the digital display disk (26).

3. The toughness detection device for the production and processing of polyester threads according to claim 2, characterized in that: A first push shaft (221) is fixedly connected to the upper edge of the first turntable (22). An arc-shaped groove (251) is formed at the edge of the second turntable (25). The arc-shaped grooves (251) are annularly arranged at the edge of the turntable. The first push shaft (221) is slidably connected to the arc-shaped groove (251).

4. The toughness detection device for polyester thread production and processing according to claim 3, characterized in that: The stretching assembly (5) includes: A third rotating shaft (51), the lower end of the third rotating shaft (51) is rotatably connected to the upper end of the first rotating shaft (21). The third rotating shaft (51) is fixedly connected to the second ratchet wheel (4). The upper end of the third rotating shaft (51) is fixedly connected to a first connecting rod (52). The two ends of the first connecting rod (52) are respectively rotatably connected to one end of two second connecting rods (53). The other ends of the two second connecting rods (53) are respectively rotatably connected to one end of two third connecting rods (54). The other ends of the two third connecting rods (54) are respectively fixedly connected to two first sliders (55). The two first sliders (55) are respectively slidably connected to two slide rails (56). The two slide rails (56) are fixedly connected to the workbench (12). One of the first sliders (55) is fixedly connected to the output end of a cylinder (57). The cylinder (57) is fixed on the workbench (12).

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