High-temperature spinning die head for polypropylene filament yarn

By designing a connecting sleeve and snap-fit ​​structure for the spinneret, the problem of inconvenient replacement of the spinneret in the existing technology is solved, enabling quick installation and disassembly and improving efficiency.

CN223646686UActive Publication Date: 2025-12-09SHANDONG KUNBO CHEM FIBER CO LTD
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Patent Information

Application Number
CN202520245027.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-09
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

The existing high-temperature spinneret for polypropylene filament is inconvenient to replace, which affects its efficiency.

Method used

A structure including a spinneret head, a connecting sleeve, a connecting rod, a plug groove, a mounting rod, a snap-fit ​​sleeve, a placement groove, and a spring is designed. The snap-fit ​​block is snapped into the snap-fit ​​sleeve by the elastic expansion of the spring, so as to achieve quick installation and disassembly.

Benefits of technology

It enables quick installation and removal of the spinneret, improving efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a polypropylene filament yarn high-temperature spinning die head, which belongs to the technical field of polypropylene filament yarns, and comprises a spinning die head, when the spinning die head needs to be installed, a connecting sleeve is sleeved on the surface of a connecting rod, then an installing rod is inserted into an inserting groove, and the installing rod is inserted into the inserting groove. A clamping block is pushed outwards through elastic expansion of a spring fixedly connected to the inner wall of one side of a placement groove, so that the clamping block can be clamped into a clamping sleeve, the mounting rod can be prevented from being disengaged from an insertion groove through clamping of the clamping block and the clamping sleeve, and the mounting rod is prevented from being disengaged from the insertion groove through cooperation of the mounting rod and the insertion groove; the connecting sleeve and the connecting rod can be firmly fixed, so that the installation of the spinneret die head is rapidly completed, and when the spinneret die head needs to be disassembled, the clamping block only needs to be pushed back into the placing groove, the installation rod can be pulled out of the inserting groove, and thus the spinneret die head can be conveniently disassembled.
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Description

Technical Field

[0001] This utility model belongs to the field of polypropylene filament technology, specifically relating to a high-temperature spinneret for polypropylene filament. Background Technology

[0002] Polypropylene filament is a synthetic fiber whose main component is polypropylene. Polypropylene fiber has the advantages of being lightweight, high-strength, wear-resistant, quick-drying, and resistant to chemical corrosion. Therefore, it is widely used in the textile industry. Polypropylene filament can be used to make various types of fabrics, such as clothing fabrics, interior decoration fabrics, industrial fabrics, and outdoor products.

[0003] In the production process of polypropylene filament, the high-temperature spinneret is a key component. Located at the end of the spinning machine, it is an important device that extrudes molten polypropylene resin through tiny holes to form continuous fiber filaments. The spinneret needs to be replaced in real time according to the required polypropylene filament, but the existing replacement is cumbersome and inconvenient, which greatly affects the efficiency of the spinneret. Summary of the Invention

[0004] The purpose of this invention is to provide a high-temperature spinneret for polypropylene filament, which aims to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A high-temperature spinneret for polypropylene filament includes:

[0007] A spinneret, wherein a connecting sleeve is fixedly connected to the upper end of the spinneret;

[0008] A connecting rod, which is movably inserted into a connecting sleeve;

[0009] A plug-in slot is provided at one end of the connecting sleeve and the connecting rod;

[0010] Mounting rod, which is movably inserted into the insertion slot;

[0011] A snap-fit ​​sleeve, wherein the snap-fit ​​sleeve is fixedly connected to one end of the connecting sleeve; and

[0012] A placement groove is provided at one end of the mounting rod, and a spring is fixedly connected to one inner wall of the placement groove, with a snap-fit ​​block fixedly connected to one end of the spring.

[0013] As a preferred embodiment of this utility model, a telescopic rod is fixedly connected to one side of the inner wall of the placement groove, and the spring is sleeved on the circumferential surface of the telescopic rod.

[0014] As a preferred embodiment of this utility model, a limiting groove is formed on one side of the inner wall of the placement groove, one end of the snap-fit ​​block is fixedly connected to the limiting block, and the limiting block is slidably connected in the limiting groove.

[0015] As a preferred embodiment of this utility model, a disassembly groove is provided on one side of the inner wall of the placement groove, and a disassembly block is fixedly connected to one end of the snap-fit ​​block, and the disassembly block is slidably connected in the disassembly groove.

[0016] As a preferred embodiment of this utility model, a horizontal rod is fixedly connected between the inner walls of the two sides of the disassembly groove, and a horizontal hole is opened at one end of the disassembly block, and the disassembly block is slidably connected to the circumferential surface of the horizontal rod through the horizontal hole.

[0017] As a preferred embodiment of this utility model, a handle is fixedly connected to one end of the disassembly block, and a transmission tube is fixedly connected to the upper end of the spinneret.

[0018] In a preferred embodiment of this utility model, a stabilizing rod is fixedly connected to one end of the connecting sleeve, a stabilizing sleeve is fixedly connected to one end of the mounting rod, and the stabilizing sleeve is slidably connected to the outer surface of the stabilizing rod.

[0019] In a preferred embodiment of this utility model, one end of the stabilizing rod is fixedly connected to an anti-detachment plate, and the upper end of the connecting rod is fixedly connected to an mounting plate.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1. In this solution, when the spinneret needs to be installed, the connecting sleeve is placed on the surface of the connecting rod, and then the mounting rod is inserted into the insertion slot. Then, the spring fixed to the inner wall of one side of the placement slot expands elastically, pushing the snap-fit ​​block outward so that the snap-fit ​​block can snap into the snap-fit ​​sleeve. The snap-fit ​​block and the snap-fit ​​sleeve prevent the mounting rod from coming out of the insertion slot. The cooperation between the mounting rod and the insertion slot can firmly fix the connecting sleeve and the connecting rod, thus quickly completing the installation of the spinneret. When disassembly is required, simply push the snap-fit ​​block back into the placement slot to pull the mounting rod out of the insertion slot, thus facilitating the disassembly of the spinneret.

[0022] 2. In this solution, the telescopic rod can prevent damage caused by the bending deformation of the spring. When the locking block moves, it can drive the limiting block to slide in the limiting groove, thereby improving the movement stability of the locking block and preventing it from moving excessively. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a front perspective view of the present invention;

[0025] Figure 2 In this utility model Figure 1 A magnified view of a section at point A in the middle;

[0026] Figure 3 This is a top sectional perspective view of the present invention;

[0027] Figure 4 In this utility model Figure 3 A magnified view of a section at point B in the middle.

[0028] In the diagram: 1. Spinneret; 2. Transfer tube; 3. Connecting sleeve; 4. Connecting rod; 5. Mounting plate; 6. Snap-fit ​​sleeve; 7. Anti-detachment plate; 8. Stabilizing rod; 9. Stabilizing sleeve; 10. Disassembly groove; 11. Horizontal bar; 12. Handle; 13. Disassembly block; 14. Mounting rod; 15. Placement groove; 16. Spring; 17. Telescopic rod; 18. Limiting groove; 19. Limiting block; 20. Snap-fit ​​block. Detailed Implementation

[0029] 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. Example 1

[0030] Please see Figure 1-4 The present invention provides the following technical solution:

[0031] A high-temperature spinneret for polypropylene filament includes:

[0032] The upper end of the spinneret 1 is fixedly connected to the connecting sleeve 3;

[0033] Connecting rod 4 is movably inserted into connecting sleeve 3;

[0034] A plug-in slot is provided at one end of the connecting sleeve 3 and the connecting rod 4;

[0035] Mounting rod 14 is movably inserted into the insertion slot;

[0036] The snap-fit ​​sleeve 6 is fixedly connected to one end of the connecting sleeve 3; and

[0037] Placement groove 15 is opened at one end of mounting rod 14, and spring 16 is fixedly connected to one inner wall of placement groove 15. One end of spring 16 is fixedly connected to snap block 20.

[0038] In a specific embodiment of this utility model, when the spinneret 1 needs to be installed, the connecting sleeve 3 is fitted onto the surface of the connecting rod 4, and then the mounting rod 14 is inserted into the insertion slot. Then, through the elastic expansion of the spring 16 fixedly connected to the inner wall of one side of the placement slot 15, the snap-fit ​​block 20 is pushed outward so that the snap-fit ​​block 20 can snap into the snap-fit ​​sleeve 6. Through the snap-fit ​​block 20 and the snap-fit ​​sleeve 6, the mounting rod 14 can be prevented from coming out of the insertion slot. Through the cooperation of the mounting rod 14 and the insertion slot, the connecting sleeve 3 and the connecting rod 4 can be firmly fixed, thereby quickly completing the installation of the spinneret 1. When disassembly is required, simply push the snap-fit ​​block 20 back into the placement slot 15, and the mounting rod 14 can be pulled out of the insertion slot, thereby facilitating the disassembly of the spinneret 1.

[0039] Please refer to the details. Figure 2 A telescopic rod 17 is fixedly connected to one side of the inner wall of the placement groove 15. A spring 16 is sleeved on the circumferential surface of the telescopic rod 17. A limiting groove 18 is opened on one side of the inner wall of the placement groove 15. One end of the snap-fit ​​block 20 is fixedly connected to a limiting block 19. The limiting block 19 is slidably connected in the limiting groove 18.

[0040] In this embodiment: the telescopic rod 17 can prevent damage caused by the bending deformation of the spring 16. When the locking block 20 moves, it can drive the limiting block 19 to slide in the limiting groove 18, thereby improving the movement stability of the locking block 20 and preventing it from moving excessively.

[0041] Please refer to the details. Figure 2 A disassembly groove 10 is provided on one side of the inner wall of the placement groove 15. A disassembly block 13 is fixedly connected to one end of the snap-fit ​​block 20. The disassembly block 13 is slidably connected in the disassembly groove 10. A horizontal rod 11 is fixedly connected between the two inner walls of the disassembly groove 10. A horizontal hole is provided at one end of the disassembly block 13, and the disassembly block 13 is slidably connected to the circumferential surface of the horizontal rod 11 through the horizontal hole.

[0042] In this embodiment: when it is necessary to push the snap-fit ​​block 20 back into the placement groove 15, the disassembly block 13 can be moved to slide in the disassembly groove 10, so as to facilitate pushing the snap-fit ​​block 20 back into the placement groove 15 and improve its ease of use. When the disassembly block 13 moves, it can slide on the circumferential surface of the horizontal rod 11 through the horizontal hole, which improves the horizontal movement stability of the disassembly block 13.

[0043] Please refer to the details. Figure 3 One end of the disassembly block 13 is fixedly connected to a handle 12, the upper end of the spinneret 1 is fixedly connected to a transmission tube 2, one end of the connecting sleeve 3 is fixedly connected to a stabilizing rod 8, one end of the mounting rod 14 is fixedly connected to a stabilizing sleeve 9, the stabilizing sleeve 9 is slidably connected to the outer surface of the stabilizing rod 8, one end of the stabilizing rod 8 is fixedly connected to an anti-detachment plate 7, and the upper end of the connecting rod 4 is fixedly connected to a mounting plate 5.

[0044] In this embodiment: the disassembly block 13 can be quickly moved by the handle 12; the spinneret head 1 and the external material tube can be connected by the transmission tube 2; when the mounting rod 14 moves, the stabilizing sleeve 9 can be moved synchronously on the outer surface of the stabilizing rod 8 to improve the horizontal movement stability of the mounting rod 14; the anti-detachment plate 7 can prevent damage caused by excessive movement of the stabilizing sleeve 9; and the connecting rod 4 and the device can be connected by the mounting plate 5.

[0045] The working principle and usage process of this utility model are as follows: When it is necessary to install the spinneret 1, the connecting sleeve 3 is placed on the surface of the connecting rod 4, and then the mounting rod 14 is inserted into the insertion groove. Then, through the elastic expansion of the spring 16 fixedly connected to the inner wall of one side of the placement groove 15, the locking block 20 is pushed outward so that the locking block 20 can be locked into the locking sleeve 6. Through the locking of the locking block 20 and the locking sleeve 6, the mounting rod 14 can be prevented from coming out of the insertion groove. Through the cooperation of the mounting rod 14 and the insertion groove, the connecting sleeve 3 and the connecting rod 4 can be firmly fixed, thereby quickly completing the installation of the spinneret 1. When it is necessary to disassemble, simply push the locking block 20 back into the placement groove 15, and the mounting rod 14 can be pulled out from the insertion groove, thereby facilitating the disassembly of the spinneret 1.

[0046] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-temperature spinneret for polypropylene filament, characterized in that, include: A spinneret (1) is provided with a connecting sleeve (3) fixedly connected to its upper end. Connecting rod (4), which is movably inserted into connecting sleeve (3); A plug-in slot is provided at one end of the connecting sleeve (3) and the connecting rod (4); Mounting rod (14), which is movably inserted into the insertion slot; A snap-fit ​​sleeve (6), which is fixedly connected to one end of a connecting sleeve (3); and Placement groove (15) is opened at one end of mounting rod (14), and a spring (16) is fixedly connected to one side inner wall of placement groove (15), and a snap block (20) is fixedly connected to one end of spring (16).

2. The polypropylene filament high-temperature spinneret according to claim 1, characterized in that, A telescopic rod (17) is fixedly connected to one side of the inner wall of the placement groove (15), and the spring (16) is sleeved on the circumferential surface of the telescopic rod (17).

3. The polypropylene filament high-temperature spinneret according to claim 2, characterized in that, A limiting groove (18) is provided on one side of the inner wall of the placement groove (15), and a limiting block (19) is fixedly connected to one end of the snap-fit ​​block (20). The limiting block (19) is slidably connected in the limiting groove (18).

4. A high-temperature spinneret for polypropylene filament according to claim 3, characterized in that, A disassembly groove (10) is provided on one side of the inner wall of the placement groove (15). A disassembly block (13) is fixedly connected to one end of the snap-fit ​​block (20). The disassembly block (13) is slidably connected in the disassembly groove (10).

5. A high-temperature spinneret for polypropylene filament according to claim 4, characterized in that, A horizontal rod (11) is fixedly connected between the inner walls of the two sides of the disassembly groove (10). A horizontal hole is opened at one end of the disassembly block (13), and the disassembly block (13) is slidably connected to the circumferential surface of the horizontal rod (11) through the horizontal hole.

6. A high-temperature spinneret for polypropylene filament according to claim 5, characterized in that, One end of the disassembly block (13) is fixedly connected to a handle (12), and the upper end of the spinneret (1) is fixedly connected to a transmission tube (2).

7. A high-temperature spinneret for polypropylene filament according to claim 6, characterized in that, One end of the connecting sleeve (3) is fixedly connected to a stabilizing rod (8), and one end of the mounting rod (14) is fixedly connected to a stabilizing sleeve (9). The stabilizing sleeve (9) is slidably connected to the outer surface of the stabilizing rod (8).

8. A high-temperature spinneret for polypropylene filament according to claim 7, characterized in that, One end of the stabilizer bar (8) is fixedly connected to an anti-detachment plate (7), and the upper end of the connecting rod (4) is fixedly connected to an mounting plate (5).