Spinneret structure for producing hollow structure polyester industrial yarns
By designing a hollow structure spinneret for polyester industrial yarn production, and utilizing a servo cylinder to drive the circular cover and mounting sleeve, the problem of overall spinneret replacement was solved, enabling rapid disassembly and positioning, and improving the practicality and production efficiency of the spinneret.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI SUOLIDE TECH DEV CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-23
AI Technical Summary
The existing spinnerets for preparing high-strength polyester industrial yarn are integral structures, which require the entire spinneret to be replaced when the spinneret holes are damaged, resulting in waste.
The spinneret used in the production of polyester industrial yarn adopts a hollow structure. The design of the circular cover and mounting sleeve driven by a servo cylinder enables the spinneret to be quickly disassembled and positioned, avoiding the need for complete replacement.
It enables rapid replacement of the spinneret, reduces waste, ensures that the spinneret does not loosen under high pressure, guarantees uniform molten material ejection, and improves the practicality and production efficiency of the spinneret.
Smart Images

Figure CN224395111U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spinneret structure technology, specifically to a hollow structure spinneret structure for producing polyester industrial yarn. Background Technology
[0002] This invention discloses a spinneret for preparing high-strength polyester industrial yarn, with publication number CN219430192U. The spinneret includes a spinneret body, an annular groove on the lower surface of the body, a rotating ring rotatably connected within the annular groove, and a cleaning device within the rotating ring. The cleaning device is used to clean the circular holes on the spinneret body. The cleaning device includes a horizontal plate fixedly connected to the rotating ring, a square through groove on the horizontal plate, and a sliding seat slidably connected within the square through groove. An arc-shaped plate is mounted on the sliding seat, and the arc-shaped plate is coaxial with the spinneret body. Multiple metal cylinders are fixedly connected to the arc-shaped plate. This invention utilizes the arc-shaped plate and the metal cylinders on it to insert into the circular holes, pushing out dirt and cleaning the dirt inside the holes more conveniently, eliminating the need for workers to clean each hole individually, thus improving efficiency.
[0003] However, the spinneret used for preparing high-strength polyester industrial yarn is an integral structure. When the spinneret holes are damaged and need to be replaced, the entire spinneret needs to be replaced, resulting in waste. Utility Model Content
[0004] Technical problem solved: In view of the shortcomings of the existing technology, this utility model provides a hollow structure spinneret for the production of polyester industrial yarn, which solves the problem of the above-mentioned spinneret for the preparation of high-strength polyester industrial yarn, which is a one-piece structure. When the spinneret hole is damaged and needs to be replaced, the whole spinneret needs to be replaced, resulting in waste.
[0005] Technical solution: To achieve the above objectives, this utility model provides the following technical solution: a hollow structure spinneret for producing polyester industrial yarn, including a connecting pipe, wherein an installation pipe communicating with the interior is fixedly connected to the front surface of the connecting pipe;
[0006] The fixing component is set on the mounting tube and includes two mounting plates. The two mounting plates are fixedly connected to the left and right sides of the mounting tube respectively, and servo cylinders are fixedly installed on the opposite sides of the two mounting plates.
[0007] The telescopic ends of the two servo cylinders are fixedly connected to fixed plates, and the opposite sides of the two fixed plates are fixedly connected to circular covers. The front surface of the circular covers has mounting holes that extend through the rear surface of the circular covers.
[0008] Preferably, a fixing sleeve is fixedly fitted onto the outer wall of the mounting tube, the front surface of the fixing sleeve is parallel to the front surface of the connecting tube, and a circular sealing groove is formed on the front surface of the fixing sleeve.
[0009] Preferably, a circular placement groove is formed on the inner front wall of the circular cover.
[0010] Preferably, an installation sleeve is placed on the inner wall of the circular placement groove, and a circular spinneret is fixedly sleeved on the inner wall of the installation sleeve.
[0011] Preferably, the front end of the circular spinneret slides through the inner wall of the mounting hole.
[0012] Preferably, the rear end of the circular spinneret slides through into the interior of the mounting tube.
[0013] Preferably, the rear end of the mounting sleeve is in contact with the front surface of the mounting tube.
[0014] Preferably, a sealing sleeve is fixedly connected to the inner front wall of the circular cover, and the circular placement groove is located inside the sealing sleeve.
[0015] Preferably, the rear end of the sealing sleeve is engaged with the interior of the circular sealing groove.
[0016] Beneficial effects: Compared with the prior art, this utility model provides a hollow structure spinneret for the production of polyester industrial yarn, which has the following beneficial effects:
[0017] 1. The hollow structure spinneret for producing polyester industrial yarn uses a servo cylinder to drive the spinneret for quick assembly and disassembly. This avoids the need to replace the entire spinneret when the spinneret holes are damaged, thus preventing waste and improving the practicality of the hollow structure spinneret for producing polyester industrial yarn.
[0018] 2. The spinneret structure for producing hollow polyester industrial yarn features a circular cover that is firmly fixed by the pulling force of two servo cylinders, ensuring that the mounting sleeve and circular spinneret will not loosen due to melt pressure during operation. The mounting sleeve provides fixed support for the circular spinneret, preventing deformation during high-speed spinning. The circular placement groove and mounting hole limit the mounting sleeve and spinneret, ensuring that the axis of the spinneret is aligned with the axis of the mounting tube and connecting tube, thus ensuring uniform melt ejection and forming qualified hollow polyester industrial yarn. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of the hollow spinneret for producing polyester industrial yarn according to this utility model;
[0020] Figure 2 This is a rear view of the entire utility model;
[0021] Figure 3 This is a schematic diagram showing the position of the circular sealing groove of this utility model;
[0022] Figure 4 This is a schematic diagram showing the position of the fixing sleeve of this utility model;
[0023] Figure 5 This is a schematic diagram showing the position of the circular placement slot of this utility model.
[0024] In the diagram: 1. Connecting pipe; 2. Mounting pipe; 3. Servo cylinder; 4. Fixing plate; 5. Circular cover; 6. Circular spinneret; 7. Sealing sleeve; 8. Fixing sleeve; 9. Circular sealing groove; 10. Mounting sleeve; 11. Circular placement groove; 12. Mounting hole; 13. Mounting plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-5 This utility model provides a new technical solution: a hollow structure spinneret structure for producing polyester industrial yarn, including a connecting pipe 1, an installation pipe 2 communicating with the interior of the connecting pipe 1 fixedly connected to the front surface of the connecting pipe 1, a fixing component, the fixing component is set on the installation pipe 2, the fixing component includes two mounting plates 13, the two mounting plates 13 are respectively fixedly connected to the left and right sides of the installation pipe 2, and servo cylinders 3 are fixedly installed on the opposite sides of the two mounting plates 13.
[0027] Among them, the extension and retraction ends of the two servo cylinders 3 are fixedly connected to the fixing plates 4, and the opposite surfaces of the two fixing plates 4 are fixedly connected to the circular covers 5. The front surface of the circular covers 5 is provided with mounting holes 12, and the mounting holes 12 extend through the rear surface of the circular covers 5.
[0028] Furthermore, a fixing sleeve 8 is fixedly sleeved on the outer wall of the mounting tube 2. The front surface of the fixing sleeve 8 is parallel to the front surface of the connecting tube 1, and a circular sealing groove 9 is opened on the front surface of the fixing sleeve 8.
[0029] Furthermore, a circular placement groove 11 is provided on the front inner wall of the circular cover 5.
[0030] Furthermore, an installation sleeve 10 is placed on the inner wall of the circular placement groove 11, and a circular spinneret 6 is fixedly sleeved on the inner wall of the installation sleeve 10.
[0031] Furthermore, the front end of the circular spinneret 6 slides through the inner wall of the mounting hole 12.
[0032] Furthermore, the rear end of the circular spinneret 6 slides through into the interior of the mounting tube 2.
[0033] Furthermore, the rear end of the mounting sleeve 10 is in contact with the front surface of the mounting tube 2.
[0034] Furthermore, a sealing sleeve 7 is fixedly connected to the inner front wall of the circular cover 5, and a circular placement groove 11 is located inside the sealing sleeve 7.
[0035] Furthermore, the rear end of the sealing sleeve 7 is engaged with the interior of the circular sealing groove 9.
[0036] Furthermore, when using this hollow structure spinneret structure for producing polyester industrial yarn, when it is necessary to replace the circular spinneret 6, first start the two servo cylinders 3, and the extension and retraction ends of the two servo cylinders 3 drive the two fixed plates 4 to move forward.
[0037] Among them, the two fixed plates 4 drive the circular cover 5 to move forward synchronously. The sealing sleeve 7 inside the front side of the circular cover 5 will move forward with it and gradually be pulled out from the circular sealing groove 9 on the front surface of the fixed sleeve 8, releasing the sealing sleeve 7 from the circular sealing groove 9. At the same time, the mounting sleeve 10 inside the circular cover 5 (fixed on the outer wall of the circular spinneret 6) will move forward with the circular cover 5, so that the rear end of the circular spinneret 6 gradually separates from the interior of the mounting tube 2, realizing the separation of the circular spinneret 6 from the mounting tube 2.
[0038] Once the circular cover 5 is moved to the appropriate position (ensuring that the circular spinneret 6 can be completely pulled out of the mounting hole 12), the servo cylinder 3 is stopped. At this time, the circular spinneret 6 can be pulled back to completely pull out the front end of the circular spinneret 6 from the mounting hole 12, and at the same time, the mounting sleeve 10 is separated from the circular placement groove 11, thus completing the disassembly of the circular spinneret 6.
[0039] Among them, take out the new circular spinneret 6 as a whole, place the mounting sleeve 10 into the inner wall of the circular placement groove 11, and at the same time insert the front end of the circular spinneret 6 into the interior of the mounting hole 12.
[0040] Subsequently, two servo cylinders 3 are activated, causing their telescopic ends to move the fixed plate 4 and the circular cover 5 backward to reset. When the circular cover 5 moves backward, the sealing sleeve 7 will gradually be inserted into the circular sealing groove 9 of the fixed sleeve 8. Through the tight engagement between the sealing sleeve 7 and the circular sealing groove 9, the first seal is formed to prevent melt leakage during production. At the same time, the rear end of the mounting sleeve 10 will be tightly attached to the front surface of the mounting tube 2, and the rear end of the circular spinneret 6 will re-enter the interior of the mounting tube 2, while the front end will slide through the inner wall of the mounting hole 12 to achieve the installation and positioning of the spinneret.
[0041] The circular cover 5 is firmly fixed by the pulling force of two servo cylinders 3, ensuring that the mounting sleeve 10 and the circular spinneret 6 will not loosen due to melt pressure during operation; the mounting sleeve 10 provides fixed support for the circular spinneret 6, preventing deformation of the spinneret during high-speed spinning; the circular placement groove 11 and the mounting hole 12 limit the mounting sleeve 10 and the spinneret 6, ensuring that the axis of the spinneret is consistent with the axis of the mounting tube 2 and the connecting tube 1, ensuring that the melt is sprayed out evenly and forming qualified hollow structure polyester industrial yarn;
[0042] The spinneret 6 is quickly disassembled and assembled by the servo cylinder 3, thus avoiding the need to replace the entire spinneret 6 when the spinneret holes on the spinneret 6 are damaged and need to be replaced, avoiding waste and improving the practicality of the hollow structure spinneret structure for the production of polyester industrial yarn.
[0043] Structural Description:
[0044] Connecting pipe 1:
[0045] The front surface is fixedly connected to the mounting tube 2, which communicates with the inside of the mounting tube. It is used to transport the melt to the mounting tube, provide raw materials for the spinneret, and is the raw material input channel for the entire spinneret structure.
[0046] Installation tube 2:
[0047] It is fixedly connected to the front surface of the connecting pipe 1, and the outer wall is fixedly sleeved with the fixing sleeve 8. The rear end of the circular spinneret 6 passes through the inside, receives the melt conveyed by the connecting pipe, and guides the melt to the spinneret. It is the connecting component between the melt and the spinneret.
[0048] Servo Cylinder 3:
[0049] The screws are fixed on the left and right sides of the mounting tube 2 respectively, and the telescopic end is fixedly connected to the fixing plate 4. The screws drive the fixing plate and the circular cover 5 to move back and forth, so as to realize the disassembly and assembly of the circular spinneret 6, which is the power source for replacing the spinneret.
[0050] Fixing plate 4:
[0051] Fixedly connected between the telescopic end of the servo cylinder 3 and the circular cover 5, it transmits the power of the servo cylinder to the circular cover, causing the circular cover to move back and forth synchronously, ensuring that the circular cover moves smoothly.
[0052] Round cover 5:
[0053] The front surface has a mounting hole 12 and a circular placement groove 11. A sealing sleeve 7 is fixedly connected to the inside. A servo cylinder is connected through a fixing plate to fix the mounting sleeve 10 and the circular spinneret 6. The spinneret can be disassembled and assembled by moving back and forth.
[0054] Circular spinneret 6:
[0055] It is fixedly sleeved on the inner wall of the mounting sleeve 10, with the front end penetrating through the mounting hole 12 and the rear end penetrating into the interior of the mounting tube 2. It is used to spray the melt to form hollow polyester industrial yarn and is the core component of the spinneret.
[0056] Sealing sleeve 7:
[0057] It is fixedly connected to the inner front wall of the circular cover 5, and the rear end is snapped into the circular sealing groove 9. By tightly fitting with the circular sealing groove, it prevents the melt from leaking during the production process and enhances the sealing performance of the device.
[0058] Fixing sleeve 8:
[0059] It is fixedly sleeved on the outer wall of the installation tube 2, and a circular sealing groove 9 is opened on the front surface. It cooperates with the sealing sleeve 7 to achieve a seal, providing an installation reference for the circular cover 5 and the spinneret, and ensuring the precise positioning of the spinneret.
[0060] Circular sealing groove 9:
[0061] A sealing sleeve 7 is inserted into the inner wall of the fixed sleeve 8 on the front surface. The sealing performance of the device is enhanced by the cooperation with the sealing sleeve, preventing the molten material from leaking from the gap between the mounting tube and the circular cover.
[0062] Installation kit 10:
[0063] It is fixedly sleeved on the outer wall of the circular spinneret 6 and placed in the inner wall of the circular placement groove 11. It connects the circular spinneret and the circular cover 5, positions the installation position of the spinneret, and ensures that the spinneret and the installation tube are aligned.
[0064] Circular placement slot 11:
[0065] The inner front wall of the circular cover 5 is provided to accommodate the mounting sleeve 10, which provides a fixed position for the mounting sleeve and ensures that the mounting sleeve and the circular spinneret 6 do not move inside the circular cover and are accurately positioned.
[0066] Mounting hole 12:
[0067] A hole is formed on the front surface of the circular cover 5 and extends through to the rear surface, allowing the front end of the circular spinneret 6 to pass through, thus restricting the radial movement of the spinneret and ensuring accurate front-to-back positioning of the spinneret.
[0068] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A hollow structure spinneret for producing polyester industrial yarn, characterized in that, include: Connecting pipe (1), the front surface of connecting pipe (1) is fixedly connected to an installation pipe (2) that communicates with its interior; The fixing component is set on the mounting tube (2). The fixing component includes two mounting plates (13). The two mounting plates (13) are fixedly connected to the left and right sides of the mounting tube (2) respectively. Servo cylinders (3) are fixedly installed on the opposite sides of the two mounting plates (13). Among them, the telescopic ends of the two servo cylinders (3) are fixedly connected to the fixing plates (4), and the opposite surfaces of the two fixing plates (4) are fixedly connected to the circular covers (5). The front surface of the circular cover (5) is provided with mounting holes (12), and the mounting holes (12) penetrate through the rear surface of the circular cover (5).
2. The hollow structure spinneret structure for producing polyester industrial yarn according to claim 1, characterized in that: The outer wall of the mounting tube (2) is fixedly fitted with a fixing sleeve (8). The front surface of the fixing sleeve (8) is parallel to the front surface of the connecting tube (1). A circular sealing groove (9) is opened on the front surface of the fixing sleeve (8).
3. The hollow structure spinneret structure for producing polyester industrial yarn according to claim 1, characterized in that: A circular placement groove (11) is provided on the inner front wall of the circular cover (5).
4. The hollow structure spinneret structure for producing polyester industrial yarn according to claim 3, characterized in that: An installation sleeve (10) is placed on the inner wall of the circular placement groove (11), and a circular spinneret (6) is fixedly sleeved on the inner wall of the installation sleeve (10).
5. The hollow structure spinneret structure for producing polyester industrial yarn according to claim 4, characterized in that: The front end of the circular spinneret (6) slides through the inner wall of the mounting hole (12).
6. The hollow structure spinneret structure for producing polyester industrial yarn according to claim 4, characterized in that: The rear end of the circular spinneret (6) slides through into the interior of the mounting tube (2).
7. The hollow structure spinneret structure for producing polyester industrial yarn according to claim 4, characterized in that: The rear end of the mounting sleeve (10) is in contact with the front surface of the mounting tube (2).
8. The hollow structure spinneret structure for producing polyester industrial yarn according to claim 1, characterized in that: A sealing sleeve (7) is fixedly connected to the inner front wall of the circular cover (5), and a circular placement groove (11) is located inside the sealing sleeve (7).
9. The hollow structure spinneret structure for producing polyester industrial yarn according to claim 8, characterized in that: The rear end of the sealing sleeve (7) is engaged with the interior of the circular sealing groove (9).