Thread cutting mechanism for polyester thread production
By introducing a wire clamping and positioning mechanism into the polyester thread production and cutting mechanism, and using components such as servo motors to achieve automatic traction and stable positioning of polyester thread, the problem of manual traction in the existing technology is solved, and cutting efficiency and safety are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-04-03
AI Technical Summary
The existing polyester thread production and cutting mechanism cannot automatically pull the cut polyester thread, requiring manual operation, which reduces its practicality and safety.
The device employs a wire clamping mechanism and a positioning mechanism. By utilizing the cooperation of a servo motor, threaded rod, threaded sleeve, electric telescopic rod, electric clamp, limit rod, and limit sleeve, it achieves automatic clamping and traction of the cut polyester thread. Furthermore, through the cooperation of positioning holes, positioning rods, telescopic springs, and positioning plates, it achieves stable positioning and cutting of the polyester thread.
It achieves automatic traction and stable positioning of the cut polyester thread, improving cutting efficiency and safety, and enhancing the practicality and stability of the mechanism.
Smart Images

Figure CN224077817U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polyester thread production technology, and in particular to a thread cutting mechanism for polyester thread production. Background Technology
[0002] Polyester yarn refers to yarn spun from polyester, a polymer fiber produced through spinning, often referring to fibers made from polyethylene terephthalate. In my country, it is commonly known as polyester. The term "yarn" usually refers to polyester thread, which requires a cutting mechanism to be used during production.
[0003] As disclosed in CN221818755U, "A cutting mechanism for polyester thread production" specifically discloses: a fixed channel is provided vertically on the top side wall of the fixed platform, a groove is provided on one side wall of the fixed channel, a sliding plate is slidably connected between the two inner walls of the groove, a connecting plate is fixed on one side wall of the sliding plate, a connecting strip is fixed at the middle position of the end of the connecting plate away from the sliding plate, a cutting knife is fixed at the end of the connecting strip away from the connecting plate, and adjustment devices fixed to the side wall of the connecting plate are installed on both sides of the connecting strip. However, in the above technology, only polyester thread can be cut during use, and it is inconvenient to automatically pull the cut polyester thread. The operator still needs to manually pull the polyester thread, which reduces the practicality of the mechanism. Therefore, this utility model proposes a cutting mechanism for polyester thread production to solve the above problems. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a cutting mechanism for polyester thread production, which solves the problem that the existing technology can only cut polyester thread, and it is inconvenient to automatically pull the cut polyester thread. The cutting polyester thread still needs to be manually pulled by the staff, which reduces the practicality of the mechanism in use.
[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a cutting mechanism for producing polyester thread, including a cutting cavity, a cutting table installed at the bottom of the cutting cavity, a top plate installed at the top of the inner side of the cutting cavity, a mounting frame installed below the top plate, a mounting cavity installed on one side below the mounting frame, a thread clamping mechanism provided below the mounting cavity, a mounting plate installed on the other side below the mounting frame, a cylinder installed at the bottom of the mounting plate, a movable plate installed at the bottom of the cylinder, a cutting blade installed at the middle position of the bottom end of the movable plate, and positioning mechanisms provided on both sides below the movable plate;
[0006] The wire clamping mechanism includes a servo motor, a threaded rod, a threaded sleeve, an electric telescopic rod, an electric clamp, and a limiting structure. The servo motor is installed at one end of the mounting cavity, and the threaded rod is installed inside the mounting cavity. The output end of the servo motor is connected to one end of the threaded rod. A threaded sleeve is provided on the outer wall of the threaded rod. An electric telescopic rod is installed at the bottom end of the threaded sleeve, and an electric clamp is installed at the bottom end of the electric telescopic rod.
[0007] A further improvement is that the limiting structure includes a limiting rod and a limiting sleeve. The limiting rod is installed above the threaded rod, and a limiting sleeve is provided on the outer side wall of the limiting rod. The bottom end of the limiting sleeve is connected to the top end of the threaded sleeve.
[0008] A further improvement is that the cross-section of the limiting rod is smaller than the cross-section of the limiting sleeve, and the limiting rod and the limiting sleeve form a sliding structure.
[0009] A further improvement is made in that: the positioning mechanism includes a positioning hole, a positioning rod, a telescopic spring, and a positioning plate. The positioning hole is opened through both ends of the movable plate. The positioning rod is installed through the interior of the positioning hole. The positioning plate is installed at the bottom end of the positioning rod. The telescopic spring is provided on the outer wall of the positioning rod. The telescopic spring is located between the movable plate and the positioning plate.
[0010] A further improvement is that two positioning plates are provided below the movable plate, and the two positioning plates are symmetrically distributed about the central axis of the movable plate.
[0011] A further improvement is that an electromagnetic slide rail is installed at the bottom of the top plate, and an electromagnetic slider is provided on the outer side wall of the electromagnetic slide rail. The bottom end of the electromagnetic slider is connected to the top end of the mounting frame.
[0012] The beneficial effects of this utility model are as follows: By providing a wire clamping mechanism below the mounting cavity, the wire clamping mechanism, through the cooperation of its servo motor, threaded rod, threaded sleeve, electric telescopic rod, electric clamp, limiting rod, and limiting sleeve, can clamp and move the cut polyester thread. This allows for automatic traction of the cut polyester thread, making the mechanism more efficient and eliminating the need for manual traction. It also enhances safety and practicality. Furthermore, by providing positioning mechanisms on both sides below the movable plate, the positioning mechanism, through the cooperation of its positioning holes, positioning rod, telescopic spring, and positioning plate, uses a cylinder to move the positioning plate downwards, positioning the polyester thread. This makes the polyester thread more stable during cutting, resulting in better cutting quality and significantly improving the stability of the mechanism during use. Attached Figure Description
[0013] Figure 1This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the overall structure of the traction mechanism of this utility model;
[0015] Figure 3 This is a schematic diagram of the overall structure of the positioning mechanism of this utility model;
[0016] Figure 4 This is a schematic diagram of the overall structure of the electromagnetic slide rail of this utility model.
[0017] The components are: 1. Cutting cavity; 2. Cutting table; 3. Top plate; 4. Mounting bracket; 5. Mounting cavity; 6. Mounting plate; 7. Cylinder; 8. Movable plate; 9. Cutting blade; 10. Positioning hole; 11. Positioning rod; 12. Telescopic spring; 13. Positioning plate; 14. Servo motor; 15. Threaded rod; 16. Threaded sleeve; 17. Electric telescopic rod; 18. Electric clamp; 19. Limiting rod; 20. Limiting sleeve; 21. Electromagnetic slide rail; 22. Electromagnetic slider. Detailed Implementation
[0018] To deepen the understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments. The embodiments are only used to explain the present utility model and do not constitute a limitation on the protection scope of the present utility model.
[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a cutting mechanism for polyester thread production, including a cutting cavity 1. A cutting table 2 is installed at the bottom of the cutting cavity 1. A top plate 3 is installed at the top of the inner side of the cutting cavity 1. A mounting frame 4 is installed below the top plate 3. A mounting cavity 5 is installed on one side below the mounting frame 4. A thread clamping mechanism is provided below the mounting cavity 5. A mounting plate 6 is installed on the other side below the mounting frame 4. A cylinder 7 is installed at the bottom of the mounting plate 6. A movable plate 8 is installed at the bottom of the cylinder 7. A cutting blade 9 is installed at the middle position of the bottom end of the movable plate 8. Positioning mechanisms are provided on both sides below the movable plate 8.
[0020] The wire clamping mechanism includes a servo motor 14, a threaded rod 15, a threaded sleeve 16, an electric telescopic rod 17, an electric clamp 18, and a limiting structure. The servo motor 14 is installed at one end of the mounting cavity 5. The threaded rod 15 is installed inside the mounting cavity 5. The output end of the servo motor 14 is connected to one end of the threaded rod 15. A threaded sleeve 16 is provided on the outer wall of the threaded rod 15. The electric telescopic rod 17 is installed at the bottom end of the threaded sleeve 16. The electric clamp 18 is installed at the bottom end of the electric telescopic rod 17. In use, the electromagnetic slide rail 21 is activated to drive the electromagnetic slider 22 to move, thereby moving the electric clamp 18. Move the device above the tangent table 2. At this time, start the electric telescopic rod 17 to drive the electric clamp 18 to move downward. Use the electric clamp 18 to clamp the polyester thread. Then start the servo motor 14 to drive the threaded rod 15 to rotate. Under the limit of the limit rod 19 and the limit sleeve 20, use the threaded rod 15 to drive the threaded sleeve 16 to move, thereby driving the polyester thread to move and pull the polyester thread. This makes the mechanism more efficient when in use, eliminates the need for manual pulling of the polyester thread, and makes the mechanism safer to use, thus greatly improving the practicality of the mechanism.
[0021] The limiting structure includes a limiting rod 19 and a limiting sleeve 20. The limiting rod 19 is installed above the threaded rod 15. The limiting sleeve 20 is provided on the outer side wall of the limiting rod 19. The bottom end of the limiting sleeve 20 is connected to the top end of the threaded sleeve 16. The cross-section of the limiting rod 19 is smaller than the cross-section of the limiting sleeve 20. The limiting rod 19 and the limiting sleeve 20 form a sliding structure. In use, the mutual cooperation between the limiting rod 19 and the limiting sleeve 20 can limit the movement of the threaded sleeve 16, making the threaded sleeve 16 more stable when moving.
[0022] The positioning mechanism includes a positioning hole 10, a positioning rod 11, a telescopic spring 12, and a positioning plate 13. The positioning hole 10 is formed through both ends of the movable plate 8. The positioning rod 11 is inserted through the interior of the positioning hole 10. The positioning plate 13 is installed at the bottom end of the positioning rod 11. The telescopic spring 12 is provided on the outer wall of the positioning rod 11. The telescopic spring 12 is located between the movable plate 8 and the positioning plate 13. Two positioning plates 13 are provided below the movable plate 8, and the two positioning plates 13 are symmetrically distributed about the central axis of the movable plate 8. In use, the mechanism is activated... The cylinder 7 drives the movable plate 8 to move downwards. At this time, the positioning plate 13 comes into contact with the polyester thread, causing the movable plate 8 to continue to move downwards. The telescopic spring 12 is subjected to elastic force, causing the positioning rod 11 to move on the outer wall of the positioning hole 10. The positioning plate 13 is used to position the polyester thread. At the same time, the cutting blade 9 moves downwards to cut the polyester thread. The positioning plate 13 makes the polyester thread more stable during cutting, resulting in a better cutting effect and greatly improving the stability of the mechanism during use.
[0023] An electromagnetic slide rail 21 is installed at the bottom of the top plate 3. An electromagnetic slider 22 is provided on the outer side wall of the electromagnetic slide rail 21. The bottom end of the electromagnetic slider 22 is connected to the top end of the mounting frame 4. In use, the electromagnetic slide rail 21 and the electromagnetic slider 22 cooperate with each other to drive the cutting blade 9 and the electric clamp 18 to move conveniently, making it easier and faster to cut the polyester thread.
[0024] Working principle: The operator first feeds the polyester thread through both ends of the cutting chamber 1. When the polyester thread needs to be cut, the electromagnetic slide rail 21 is activated, which moves the electromagnetic slider 22. The electromagnetic slider 22 moves the cutting blade 9 above the cutting table 2. Then, the cylinder 7 is activated, which moves the movable plate 8 downward. At this time, the positioning plate 13 comes into contact with the polyester thread, causing the movable plate 8 to continue moving downward. At this time, the telescopic spring 12 is subjected to elastic force, causing the positioning rod 11 to move on the outer wall of the positioning hole 10. The positioning plate 13 then positions the polyester thread and cuts it simultaneously. The blade 9 moves downward to cut the polyester thread. After cutting, the cylinder 7 is activated to move the movable plate 8 upward. Then, the electromagnetic slide rail 21 is activated to move the electromagnetic slider 22, moving the electric clamp 18 above the cutting table 2. At this time, the electric telescopic rod 17 is activated to move the electric clamp 18 downward, using the electric clamp 18 to clamp the polyester thread. Then, the servo motor 14 is activated to rotate the threaded rod 15. Therefore, under the limit of the limit rod 19 and the limit sleeve 20, the threaded rod 15 drives the threaded sleeve 16 to move, thereby moving the polyester thread and pulling it.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A cutting mechanism for producing polyester thread, comprising a cutting cavity (1), characterized in that: The bottom end of the inside of the cutting line cavity (1) is provided with a cutting line table (2), the top end of the inside of the cutting line cavity (1) is provided with a top plate (3), the lower side of the installation frame (4) is provided with a mounting cavity (5), the lower side of the installation frame (4) is provided with a mounting plate (6), the bottom end of the mounting plate (6) is provided with a pneumatic cylinder (7), the bottom end of the pneumatic cylinder (7) is provided with a movable plate (8), the middle position of the bottom end of the movable plate (8) is provided with a cutting knife (9), and the lower side of the movable plate (8) is provided with a positioning mechanism. The clamping mechanism comprises a servo motor (14), a threaded rod (15), a threaded sleeve (16), an electric telescopic rod (17), an electric clamp (18) and a limiting structure, one end of the mounting cavity (5) is provided with the servo motor (14), the inside of the mounting cavity (5) is provided with the threaded rod (15), the output end of the servo motor (14) is connected with one end of the threaded rod (15), the outer side wall of the threaded rod (15) is provided with the threaded sleeve (16), the bottom end of the threaded sleeve (16) is provided with the electric telescopic rod (17), and the bottom end of the electric telescopic rod (17) is provided with the electric clamp (18).
2. The thread cutting mechanism for polyester thread production as claimed in claim 1, wherein: The limiting structure comprises a limiting rod (19) and a limiting sleeve (20), the limiting rod (19) is arranged above the threaded rod (15), the outer side wall of the limiting rod (19) is provided with the limiting sleeve (20), and the bottom end of the limiting sleeve (20) is connected with the top end of the threaded sleeve (16).
3. The thread cutting mechanism for polyester thread production as claimed in claim 2, wherein: The cross section of the limiting rod (19) is smaller than that of the limiting sleeve (20), and a sliding structure is formed between the limiting rod (19) and the limiting sleeve (20).
4. The thread cutting mechanism for polyester thread production as claimed in claim 1, wherein: The positioning mechanism comprises a positioning hole (10), a positioning rod (11), a telescopic spring (12) and a positioning plate (13), the two ends of the movable plate (8) are provided with the positioning hole (10), the inside of the positioning hole (10) is provided with the positioning rod (11), the bottom end of the positioning rod (11) is provided with the positioning plate (13), the outer side wall of the positioning rod (11) is provided with the telescopic spring (12), and the telescopic spring (12) is located between the movable plate (8) and the positioning plate (13).
5. The thread cutting mechanism for polyester thread production as claimed in claim 4, wherein: The two positioning plates (13) are arranged below the movable plate (8) and are symmetrically distributed about the central axis of the movable plate (8).
6. The thread cutting mechanism for polyester thread production as claimed in claim 1, wherein: The bottom end of the top plate (3) is provided with an electromagnetic slide rail (21), the outer side wall of the electromagnetic slide rail (21) is provided with an electromagnetic slide block (22), and the bottom end of the electromagnetic slide block (22) is connected with the top end of the installation frame (4).
Citation Information
Patent Citations
Thread cutting mechanism for polyester thread production
CN221818755U