CN216378489U - Quadrilateral high-hollowness fiber spinneret plate - Google Patents
Quadrilateral high-hollowness fiber spinneret plate Download PDFInfo
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- CN216378489U CN216378489U CN202121017696.0U CN202121017696U CN216378489U CN 216378489 U CN216378489 U CN 216378489U CN 202121017696 U CN202121017696 U CN 202121017696U CN 216378489 U CN216378489 U CN 216378489U
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Abstract
The utility model relates to a quadrilateral high-hollowness fiber spinneret plate, which comprises a spinneret plate body and a plurality of spinneret holes annularly distributed on the spinneret plate body; the spinneret orifice consists of four sections of slender arc-shaped orifices, the slender arc-shaped orifices are arranged into a structure similar to a diamond, and the concave surface of each section of slender arc-shaped orifice faces outwards. The concave surface is basically a plane after the extrusion and the swelling in the spinning process, and the fiber section can well keep the shape of a rhomboid quadrangle. The manufactured quadrilateral high hollow polyester staple fiber has very good plane glossiness. The defect of poor glossiness of the coarse denier round fibers is well overcome, and the glossiness and the application effect of the textile are improved. Compared with the traditional special-shaped three-dimensional hollow fiber, the quadrilateral high-hollowness polyester fiber prepared by the spinneret plate has higher hollowness and improved fiber flexibility.
Description
Technical Field
The utility model relates to the technical field of chemical fiber spinning equipment accessories, in particular to a quadrilateral high-hollowness fiber spinneret plate.
Background
The spinneret plate in the field of chemical fiber spinning is also called spinning cap, and is used for converting viscous-flow high polymer melt or solution into thin flow with specific cross section through micropores, and solidifying the thin flow by using a solidification medium such as air or a solidification bath to form filament.
The characteristics of the three-dimensional hollow polyester fiber, which are closely related to the appearance of the cross section of the fiber and the contour of the three-dimensional hollow polyester fiber having a deformed cross section is irregular, can give a bulky feeling to the three-dimensional hollow polyester fiber fabric. The glossiness and the hand feeling of the fabric are improved, the quality of the textile is improved, and the air permeability and the pilling resistance are also improved.
The three-dimensional hollow polyester fiber has a continuous hollow cavity inside, which reduces the volume quality of the fiber and improves the heat insulation and air permeability of the textile. The special-shaped three-dimensional hollow polyester fiber takes the integrally formed special-shaped structure into consideration and combines the three-dimensional hollow structure, and has a plurality of advantages compared with the traditional round three-dimensional hollow fiber. In the polyester fiber industry at present, most enterprises produce three-dimensional hollow polyester staple fibers based on the utilization of recycled polyester as a raw material source, the recycled polyester raw materials are further contracted along with the implementation of a solid waste ban, and the advantages of the primary polyester are further expanded due to the release of the capacity. In the conventional production method of three-dimensional hollow fibers, C-shaped holes are mostly used for a spinneret plate which is commonly used. Whether the C-shaped holes are single-lug or double-lug, the cross section of the produced polyester fiber is difficult to keep a regular shape.
The polygonal special-shaped fiber has a good reflection effect, the glossiness of the chemical fiber can be improved, and how to design a spinneret plate capable of realizing production of the quadrilateral hollow fiber becomes a demand.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quadrilateral high-hollowness fiber spinneret plate, which can be used for preparing quadrilateral high-hollowness polyester fibers, has good light reflection effect and glossiness, and has higher hollowness and higher fiber flexibility compared with the traditional special-shaped three-dimensional hollow fibers.
In order to solve the technical problem, the utility model aims to realize that:
the utility model relates to a quadrilateral high-hollowness fiber spinneret plate, which comprises a spinneret plate body and a plurality of spinneret holes annularly distributed on the spinneret plate body;
the spinneret orifice consists of four sections of elongated arc-shaped orifices, namely a first elongated arc-shaped orifice, a second elongated arc-shaped orifice, a third elongated arc-shaped orifice and a fourth elongated arc-shaped orifice; the first, second, third and fourth elongated arc-shaped holes are arranged into a structure similar to a diamond, and the concave surface of each section of the elongated arc-shaped hole faces outwards.
On the basis of the above scheme and as a preferable scheme of the scheme: one end of the first elongated arc-shaped hole is adjacent to one end of the second elongated arc-shaped hole and has a gap, and the other end of the first elongated arc-shaped hole is adjacent to the fourth elongated arc-shaped hole and has a gap; one end of the third elongated arc-shaped hole is adjacent to the other end of the second elongated arc-shaped hole and has a gap, and the other end of the third elongated arc-shaped hole is adjacent to the other end of the fourth elongated arc-shaped hole and has a gap.
On the basis of the above scheme and as a preferable scheme of the scheme: the fourth elongated arcuate aperture tapers in width from the melt input end to the melt discharge end.
On the basis of the above scheme and as a preferable scheme of the scheme: and a boss is arranged at the melt outflow end of the fourth elongated arc-shaped hole.
On the basis of the above scheme and as a preferable scheme of the scheme: the spinneret orifice is arranged on a spinneret core, and the spinneret core is arranged in a through hole arranged on the spinneret plate body; the top surface of the spinneret core is not higher than the surface of the spinneret plate body.
On the basis of the above scheme and as a preferable scheme of the scheme: the spinning core is provided with an external thread, an internal thread is arranged in the through hole corresponding to the external thread, and the internal thread and the external thread are mutually screwed and connected to fixedly install the spinning core in the through hole.
The utility model has the beneficial effects that: the utility model relates to a quadrilateral high-hollowness fiber spinneret plate, which adopts a spinneret plate with an arc-shaped hole, wherein the concave surface of the arc-shaped hole faces outwards, the concave surface is basically a plane after extrusion and swelling in the spinning process, and the fiber section can well keep the shape of a rhomboid quadrilateral. The manufactured quadrilateral high hollow polyester staple fiber has very good plane glossiness. The defect of poor glossiness of the coarse denier round fibers is well overcome, and the glossiness and the application effect of the textile are improved. Compared with the traditional special-shaped three-dimensional hollow fiber, the quadrilateral high-hollowness polyester fiber prepared by the spinneret plate has higher hollowness and improved fiber flexibility.
Drawings
Fig. 1 is a schematic structural view of a spinneret plate according to an embodiment;
FIG. 2 is a schematic view of the structure of the spinneret orifice;
FIG. 3 is a schematic sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of the spinneret hole according to the third embodiment.
The designations in the figures illustrate the following: 1-spinneret plate body; 2-spinneret orifices; 21-a first elongated arcuate aperture; 22-a second elongated arcuate aperture; 23-a third elongated arcuate aperture; 24-a fourth elongated arcuate aperture; 20-a spinneret core; 25-boss.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example one
This embodiment will be described in detail with reference to fig. 1 and 2. The quadrilateral high-hollowness fiber spinneret plate comprises a spinneret plate body 1 and a plurality of spinneret holes 2 which are annularly distributed on the spinneret plate body 1.
The spinneret orifice 2 is composed of four sections of elongated arc-shaped orifices, namely a first elongated arc-shaped orifice 21, a second elongated arc-shaped orifice 22, a third elongated arc-shaped orifice 23 and a fourth elongated arc-shaped orifice 24. The first, second, third and fourth elongated arc- shaped holes 21, 22, 23 and 24 are arranged in a diamond-like structure with the concave surface of each section of elongated arc-shaped hole facing outward.
One end of the first elongated arc-shaped hole 21 is adjacent to and spaced from one end of the second elongated arc-shaped hole 22, and the other end is adjacent to and spaced from the fourth elongated arc-shaped hole 24; one end of the third elongated arc-shaped hole 23 is adjacent to and spaced from the other end of the second elongated arc-shaped hole 22, and the other end is adjacent to and spaced from the other end of the fourth elongated arc-shaped hole 24.
The spinneret plate with the arc-shaped holes is adopted, the concave surfaces of the arc-shaped holes face outwards, the concave surfaces basically form a plane after the extrusion and expansion in the spinning process, and the fiber section can well keep the shape of a rhomboid quadrangle. The manufactured quadrilateral high hollow polyester staple fiber has very good plane glossiness. The defect of poor glossiness of the coarse denier round fibers is well overcome, and the glossiness and the application effect of the textile are improved.
Example two
This embodiment will be described in detail with reference to fig. 3. The quadrilateral high-hollowness fiber spinneret according to the present embodiment is different from the first embodiment in that: the fourth elongated arcuate aperture 24 tapers in width from the melt inlet end a to the melt outlet end b. A boss 25 is provided at the melt outflow end b of the fourth elongated arc-shaped hole 24. Namely, the melt outflow end b of the fourth elongated arc-shaped hole 24 protrudes out of the lower surface of the spinneret plate body 1, so that the melt expands during the ejection and cannot form viscosity on the bottom surface of the plate body, and the spinning quality can be greatly improved.
The first, second, third and fourth elongated curved holes 21, 22, 23 and 24 have the same structure, and the structure of the fourth elongated curved hole 24 is described as an example.
The transition between the melt outflow end b of the fourth elongated arc-shaped hole 24 and the boss 25 may be a right angle or an arc.
EXAMPLE III
This embodiment will be described in detail with reference to fig. 4. The quadrilateral high-hollowness fiber spinneret according to the present embodiment is different from the first or second embodiments in that: the spinneret orifice 2 is arranged on the spinneret core 20, and the spinneret core 20 is arranged in a through hole arranged on the spinneret plate body 1; the top surface of the spinneret core 20 is not higher than the surface of the spinneret body 1.
The spinning core 20 is provided with an external thread, and an internal thread is arranged in the through hole corresponding to the external thread, and the internal thread and the external thread are mutually screwed and connected to fix the spinning core 20 in the through hole.
The spinning core 20 is detachably arranged in the through hole on the spinneret plate body 1, and after the spinning core is damaged, only the damaged spinning core 20 needs to be detached and replaced, and the whole spinneret plate does not need to be replaced, so that the production cost of chemical fiber spinning operation is fundamentally reduced. And the spinneret plate body 1 and the spinneret core 20 are separately and independently processed, so that the manufacturing process of the spinneret plate becomes simple and easy, batch flow production of the spinneret plate is facilitated, and the production efficiency of manufacturing the spinneret plate is improved.
The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (6)
1. A quadrilateral high-hollowness fiber spinneret plate is characterized by comprising a spinneret plate body (1) and a plurality of spinneret orifices (2) annularly distributed on the spinneret plate body (1);
the spinneret orifice (2) consists of four sections of elongated arc-shaped orifices, namely a first elongated arc-shaped orifice (21), a second elongated arc-shaped orifice (22), a third elongated arc-shaped orifice (23) and a fourth elongated arc-shaped orifice (24); the first elongated arc-shaped hole (21), the second elongated arc-shaped hole (22), the third elongated arc-shaped hole (23) and the fourth elongated arc-shaped hole (24) are arranged into a structure similar to a diamond, and the concave surface of each section of elongated arc-shaped hole faces outwards.
2. The quadrangular high-hollowness fiber spinning plate according to claim 1, wherein one end of said first elongated arc-shaped hole (21) is adjacent to and spaced apart from one end of said second elongated arc-shaped hole (22), and the other end is adjacent to and spaced apart from said fourth elongated arc-shaped hole (24); one end of the third elongated arc-shaped hole (23) is adjacent to the other end of the second elongated arc-shaped hole (22) and has a space, and the other end of the third elongated arc-shaped hole is adjacent to the other end of the fourth elongated arc-shaped hole (24) and has a space.
3. The quadrilateral high-hollowness fiber spinneret plate according to claim 1, wherein the width of the fourth elongated arc-shaped hole (24) is gradually reduced from the melt input end (a) to the melt outflow end (b).
4. The quadrilateral high-hollowness fiber spinneret according to claim 3, wherein a boss (25) is provided at the melt outflow end (b) of the fourth elongated arc-shaped hole (24).
5. The quadrilateral high-hollowness fiber spinneret plate according to claim 1, wherein the spinneret holes (2) are arranged on a spinneret core (20), and the spinneret core (20) is installed in a through hole arranged on the spinneret plate body (1); the top surface of the spinneret core (20) is not higher than the surface of the spinneret plate body (1).
6. The quadrangular high-hollowness fiber spinning plate according to claim 5, wherein the spinning core (20) is provided with an external thread, and an internal thread is provided in the through hole, and the internal thread and the external thread are threadedly engaged with each other to fixedly mount the spinning core (20) in the through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121017696.0U CN216378489U (en) | 2021-05-12 | 2021-05-12 | Quadrilateral high-hollowness fiber spinneret plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121017696.0U CN216378489U (en) | 2021-05-12 | 2021-05-12 | Quadrilateral high-hollowness fiber spinneret plate |
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| CN216378489U true CN216378489U (en) | 2022-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121017696.0U Active CN216378489U (en) | 2021-05-12 | 2021-05-12 | Quadrilateral high-hollowness fiber spinneret plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023237069A1 (en) * | 2022-06-23 | 2023-12-14 | 江苏恒科新材料有限公司 | Spinneret plate for producing hollow polyester filaments having multiple acute-angled grooves and multiple leaves |
-
2021
- 2021-05-12 CN CN202121017696.0U patent/CN216378489U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023237069A1 (en) * | 2022-06-23 | 2023-12-14 | 江苏恒科新材料有限公司 | Spinneret plate for producing hollow polyester filaments having multiple acute-angled grooves and multiple leaves |
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