A spinneret

Abstract

A spinneret includes a spinneret body with two opposing semi-circular grooves. Each semi-circular groove has a plurality of spinneret holes. Matching semi-circular stainless steel mesh sheets are disposed on the semi-circular grooves. The gap between the semi-circular grooves and the semi-circular stainless steel mesh sheets is sealed by a sealing ring. The tight fit between the semi-circular stainless steel mesh sheets and the sealing ring prevents side leakage caused by edge gaps on the spinneret, thereby reducing the rate of defective filaments.

Description

Technical Field

[0001] This utility model relates to the field of spinning equipment technology, and in particular to a spinneret. Background Technology

[0002] A spinneret, also known as a spinning cap, is a common industrial component in the manufacture of plastics, fibers, and other industrial products. It transforms a viscous melt or solution into fine streams with specific cross-sectional shapes through micropores. These streams are then solidified in a slurry medium (such as air or a slurry bath) to form filaments. During the spinning process, its design and performance directly affect the quality of the filaments and the spinning efficiency, making it an indispensable key component of spinning equipment.

[0003] The existing spinneret has uneven adhesion between the stainless steel mesh and the sealing ring, resulting in gaps and poor cooling effect. This easily leads to problems such as fiber breakage, fuzz, and uneven dyeing. In order to improve the quality of the filaments and spinning efficiency, we designed a spinneret that can improve the side leakage caused by the edge gaps on the spinneret during melt filtration, thereby reducing the rate of defective filaments. Utility Model Content

[0004] The purpose of this invention is to provide a spinneret that enables the sealing ring and stainless steel mesh to fit tightly together, thereby reducing the rate of defective filaments.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model proposes a spinneret, including a spinneret plate body, the spinneret plate body having two opposing semi-circular grooves, a plurality of spinneret holes being opened in the semi-circular grooves, and matching semi-circular stainless steel mesh sheets being disposed on the semi-circular grooves, the gap between the semi-circular grooves and the semi-circular stainless steel mesh sheets being sealed by a sealing ring.

[0007] Furthermore, the diameter of the semi-circular stainless steel mesh sheet is 72–87 mm.

[0008] Furthermore, the sealing ring is an aluminum sealing ring.

[0009] Furthermore, the diameter of the spinneret orifice is 2 to 2.55 mm.

[0010] Furthermore, the semi-circular stainless steel mesh has several sets of parallel elliptical through holes.

[0011] Furthermore, the length of the elliptical through hole is 0.29–0.33 mm.

[0012] Furthermore, the width of the elliptical through hole is 0.08–0.12 mm.

[0013] Furthermore, the spacing between adjacent elliptical through holes is 0.05 to 0.09 mm.

[0014] The beneficial effects of this utility model are: the tight fit between the semi-circular stainless steel mesh and the sealing ring can prevent side leakage caused by edge gaps on the spinneret, thereby reducing the rate of defective filaments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an enlarged view of the structure of a semi-circular stainless steel mesh sheet.

[0017] In the figure, 1-spinneret plate body, 2-semi-circular groove, 3-spinneret hole, 4-semi-circular stainless steel mesh, 5-sealing ring, 6-elliptical through hole, a-spacing between adjacent elliptical through holes, b-width of elliptical through hole, d1-diameter of semi-circular stainless steel mesh, d2-diameter of spinneret hole, L-length of elliptical through hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Please see Figures 1 to 2 This utility model provides an embodiment:

[0020] Please see Figure 1 and Figure 2 A spinneret includes a spinneret body 1, which has two opposing semi-circular grooves 2. Several spinneret holes 3 are opened in the semi-circular grooves 2. Matching semi-circular stainless steel mesh sheets 4 are provided on the semi-circular grooves 2. The gap between the semi-circular grooves 2 and the semi-circular stainless steel mesh sheets 4 is sealed by a sealing ring 5.

[0021] Please see Figure 2 The diameter d1 of the semi-circular stainless steel mesh 4 is 72-87mm.

[0022] Please see Figure 2 The sealing ring 5 is an aluminum sealing ring.

[0023] Please see Figure 1 The diameter d2 of the spinneret 3 is 2 to 2.55 mm.

[0024] Please see Figure 2 The semi-circular stainless steel mesh sheet 4 has several sets of parallel elliptical through holes 6. Compared with round holes, the elliptical through holes 6 have a larger usable area and a higher porosity, which can reduce the impact resistance generated when non-Newtonian fluids pass through, and protect the semi-circular stainless steel sheet 4 from deformation under pressure.

[0025] Please see Figure 2 The length L of the elliptical through hole 6 is 0.29 to 0.33 mm.

[0026] Please see Figure 2 The width b of the elliptical through hole 6 is 0.08 to 0.12 mm.

[0027] Please see Figure 2 The spacing 'a' between adjacent elliptical through holes 6 is 0.05 to 0.09 mm.

[0028] Working principle: The viscous polymer melt or solution enters the spinneret. The solution flows out from the spinneret holes 3 onto the semi-circular stainless steel mesh 4. It is then transformed into fine streams with a specific cross-section through the elliptical through-holes 6 on the semi-circular stainless steel mesh 4. These fine streams are subsequently solidified by a solidifying medium (such as air or a solidification bath), ultimately forming filaments. This novel installation method involves first placing the semi-circular stainless steel mesh 4 into the semi-circular groove 2 of the spinneret, then pressing the sealing ring 5 into the gap between the semi-circular groove 2 and the semi-circular stainless steel mesh 4. The sand cup of the component, already filled with sand, is then inserted into the sealing ring 5 and pressed tightly using a hydraulic press. This method ensures a tight fit at the edge gaps, forming an effective seal and preventing side leakage. Unlike the traditional method of first placing the sealing ring 5 and then inserting the semi-circular stainless steel mesh 4, which results in a less tight fit at the edge gaps and a filament ratio as high as 5% after the component is installed, this method is more efficient.

[0029] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are 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 spinneret, characterized in that: The device includes a spinneret plate body, which has two opposing semi-circular grooves. Several spinneret holes are opened in the semi-circular grooves. Matching semi-circular stainless steel mesh sheets are provided on the semi-circular grooves. The gap between the semi-circular grooves and the semi-circular stainless steel mesh sheets is sealed by a sealing ring.

2. A spinneret according to claim 1, characterized in that: The diameter of the semi-circular stainless steel mesh is 72-87 mm.

3. A spinneret according to claim 1, characterized in that: The sealing ring is an aluminum sealing ring.

4. A spinneret according to claim 1, characterized in that: The diameter of the spinneret orifice is 2 to 2.55 mm.

5. A spinneret according to claim 1, characterized in that: The semi-circular stainless steel mesh has several sets of parallel elliptical through holes.

6. A spinneret according to claim 5, characterized in that: The length of the elliptical through hole is 0.29–0.33 mm.

7. A spinneret according to claim 5, characterized in that: The width of the elliptical through hole is 0.08 to 0.12 mm.

8. A spinneret according to claim 5, characterized in that: The spacing between adjacent elliptical through holes is 0.05 to 0.09 mm.

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