Composite spinneret plate for different-shrinkage elastic polyester yarns

By setting heat-conducting and heat-absorbing blocks on the composite spinneret, efficient heat dissipation is achieved, solving the problem of spinneret damage due to overheating of high-temperature melt and improving safety in use.

CN224212837UActive Publication Date: 2026-05-08HANGZHOU DINGKAI CHEM FIBRE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU DINGKAI CHEM FIBRE CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing composite spinnerets have low heat dissipation efficiency, which makes the high-temperature melt prone to overheating and damage.

Method used

A composite spinneret for differential shrinkage elastic polyester yarn was designed, which adopts a structure of heat-conducting block, heat-absorbing block and spinneret hole. The heat-absorbing hole uniformly transfers high temperature heat to the heat-conducting block and dissipates it into the outside air, thereby improving heat dissipation efficiency.

Benefits of technology

It effectively improves heat dissipation efficiency, prevents the spinneret from being damaged due to overheating, and improves safety in use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of different-shrinkage elastic polyester yarns, and discloses a composite spinneret plate for different-shrinkage elastic polyester yarns, which comprises a plate body, the inner wall of the plate body is fixedly connected with a heat conduction block, and the inner wall of the heat conduction block is fixedly connected with a first supporting block and a second supporting block respectively. One end of the first supporting block is fixedly connected with a first heat absorption block, one end of the second supporting block is fixedly connected with a second heat absorption block, first heat absorption holes are formed in the outer wall of the first heat absorption block, and second heat absorption holes are formed in the outer wall of the second heat absorption block. According to the composite spinneret plate for the different-shrinkage elastic polyester yarn, through the arrangement of the plate body, the heat conduction block, the first heat absorption block, the first supporting block, the first heat absorption holes, the second heat absorption block, the second supporting block, the second heat absorption holes and the spinneret holes, heat generated by the spinneret holes can be evenly dissipated after being absorbed, and therefore the heat dissipation efficiency is improved; the problem of easy damage caused by overheating is solved, and the safety in use is improved.
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Description

Technical Field

[0001] This utility model relates to the field of technology of differential shrinkage elastic polyester yarn, specifically a composite spinneret for differential shrinkage elastic polyester yarn. Background Technology

[0002] Polyester filament is a type of polyester fiber. Depending on the type, it is divided into differential shrinkage elastic polyester filament. When processing differential shrinkage elastic polyester filament, a spinneret is required. It is also called a spinning cap. Its function is to transform the viscous polymer melt or solution into a fine stream with a specific cross-sectional shape through micropores. The stream is then solidified by a solidification medium such as air or a solidification bath to form filaments. Spinnerets also include composite spinnerets used to manufacture composite fibers.

[0003] Existing composite spinnerets have slow heat dissipation efficiency during use, which makes them susceptible to overheating and damage due to the influence of high-temperature melt during operation. Therefore, there is an urgent need for a composite spinneret for differential shrinkage elastic polyester yarn to solve the above-mentioned problems. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a composite spinneret for differential shrinkage elastic polyester yarn, which has a heat dissipation function and solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a composite spinneret for acrylonitrile elastic polyester yarn, comprising a plate body, a heat-conducting block fixedly connected to the inner wall of the plate body, a first support block and a second support block fixedly connected to the inner wall of the heat-conducting block respectively, a first heat-absorbing block fixedly connected to one end of the first support block, a second heat-absorbing block fixedly connected to one end of the second support block, a first heat-absorbing hole provided on the outer wall of the first heat-absorbing block, a second heat-absorbing hole provided on the outer wall of the second heat-absorbing block, and spinnerets fixedly connected to the inner walls of the first heat-absorbing block and the second heat-absorbing block.

[0008] Furthermore, the heat-conducting blocks are evenly distributed in several groups, and each group has two heat-conducting blocks symmetrically distributed in an arc shape, which facilitates the heat conduction work of the heat generated at high temperatures.

[0009] Furthermore, the first heat-absorbing block is viewed from the front as a semi-annular structure, and the outer wall of the first heat-absorbing block is connected to the inner wall of the heat-conducting block, which facilitates the transfer of heat from the first heat-absorbing block to the heat-conducting block.

[0010] Furthermore, the first heat-absorbing block cooperates with the heat-conducting block through the first heat-absorbing hole, and the first heat-absorbing hole is symmetrically distributed on the outer wall of the first heat-absorbing block, which further improves the heat dissipation efficiency.

[0011] Furthermore, the second heat-absorbing block is viewed from the front as a semi-annular structure, and the outer wall of the second heat-absorbing block is connected to the inner wall of the heat-conducting block, which facilitates the transfer of heat from the second heat-absorbing block to the heat-conducting block.

[0012] Furthermore, the second heat-absorbing block cooperates with the heat-conducting block through the second heat-absorbing hole, and the second heat-absorbing hole is symmetrically distributed on the outer wall of the second heat-absorbing block, which further improves the heat dissipation efficiency.

[0013] Beneficial effects

[0014] Compared with the prior art, this utility model provides a composite spinneret for polyester yarn with different shrinkage elasticity, which has the following beneficial effects:

[0015] 1. The composite spinneret for differential shrinkage elastic polyester yarn, through the arrangement of the plate body, heat-conducting block, first heat-absorbing block, first support block, first heat-absorbing hole, second heat-absorbing block, second support block, second heat-absorbing hole and spinneret hole, is conducive to absorbing the high temperature generated by the spinneret hole and dissipating it evenly, thereby improving the heat dissipation efficiency, solving the problem of easy damage caused by overheating, and improving the safety during use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0019] In the figure: 1. Plate; 2. Heat-conducting block; 3. First heat-absorbing block; 4. First support block; 5. First heat-absorbing hole; 6. Second heat-absorbing block; 7. Second support block; 8. Second heat-absorbing hole; 9. Spinneret hole. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] A preferred embodiment of the composite spinneret for differential shrinkage elastic polyester yarn provided by this utility model is as follows: Figures 1 to 3 As shown: A composite spinneret for acrylonitrile shrinkable elastic polyester yarn includes a plate body 1. A heat-conducting block 2 is fixedly connected to the inner wall of the plate body 1. A first support block 4 and a second support block 7 are fixedly connected to the inner wall of the heat-conducting block 2. A first heat-absorbing block 3 is fixedly connected to one end of the first support block 4, and a second heat-absorbing block 6 is fixedly connected to one end of the second support block 7. A first heat-absorbing hole 5 is opened on the outer wall of the first heat-absorbing block 3, and a second heat-absorbing hole 8 is opened on the outer wall of the second heat-absorbing block 6. Spinneret holes 9 are fixedly connected to the inner walls of the first heat-absorbing block 3 and the second heat-absorbing block 6.

[0023] Furthermore, the heat-conducting blocks 2 are evenly distributed in several groups, and each group of heat-conducting blocks 2 has two symmetrically distributed arc-shaped blocks, which facilitates the heat conduction work of the heat generated at high temperature.

[0024] Furthermore, the first heat-absorbing block 3 is viewed from the front as a semi-annular structure, and the outer wall of the first heat-absorbing block 3 is connected to the inner wall of the heat-conducting block 2, which facilitates the transfer of heat from the first heat-absorbing block 3 to the heat-conducting block 2.

[0025] Furthermore, the first heat-absorbing block 3 cooperates with the heat-conducting block 2 through the first heat-absorbing hole 5, and the first heat-absorbing hole 5 is symmetrically distributed on the outer wall of the first heat-absorbing block 3, which further improves the heat dissipation efficiency.

[0026] Furthermore, the second heat-absorbing block 6 is viewed from the front as a semi-annular structure, and the outer wall of the second heat-absorbing block 6 is connected to the inner wall of the heat-conducting block 2, which facilitates the transfer of heat from the second heat-absorbing block 6 to the heat-conducting block 2.

[0027] Furthermore, the second heat-absorbing block 6 cooperates with the heat-conducting block 2 through the second heat-absorbing hole 8, and the second heat-absorbing hole 8 is symmetrically distributed on the outer wall of the second heat-absorbing block 6, which further improves the heat dissipation efficiency.

[0028] In use, the high-temperature heat generated by the spinneret 9 is first absorbed by the first heat-absorbing block 3 and the second heat-absorbing block 6, and the heat is transferred to the heat-conducting block 2 through the first heat-absorbing hole 5 and the second heat-absorbing hole 8. This allows the heat-conducting block 2 to evenly dissipate the heat through the plate 1 into the outside air, thereby effectively improving the uniformity of heat dissipation and solving the problem of easy damage caused by overheating.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] 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 composite spinneret for acrylonitrile elastic polyester yarn, comprising a spinneret body (1), characterized in that: A heat-conducting block (2) is fixedly connected to the inner wall of the plate (1). A first support block (4) and a second support block (7) are fixedly connected to the inner wall of the heat-conducting block (2). A first heat-absorbing block (3) is fixedly connected to one end of the first support block (4), and a second heat-absorbing block (6) is fixedly connected to one end of the second support block (7). A first heat-absorbing hole (5) is opened on the outer wall of the first heat-absorbing block (3), and a second heat-absorbing hole (8) is opened on the outer wall of the second heat-absorbing block (6). A spinneret hole (9) is fixedly connected to the inner walls of the first heat-absorbing block (3) and the second heat-absorbing block (6).

2. The composite spinneret for differential shrinkage elastic polyester yarn according to claim 1, characterized in that: The heat-conducting blocks (2) are evenly distributed in several groups, and each group of heat-conducting blocks (2) has two symmetrically distributed arc-shaped blocks (2).

3. The composite spinneret for differential shrinkage elastic polyester yarn according to claim 1, characterized in that: The first heat-absorbing block (3) is viewed from the front as a semi-annular structure, and the outer wall of the first heat-absorbing block (3) is connected to the inner wall of the heat-conducting block (2).

4. The composite spinneret for differential shrinkage elastic polyester yarn according to claim 1, characterized in that: The first heat-absorbing block (3) is connected to the heat-conducting block (2) through the first heat-absorbing hole (5), and the first heat-absorbing hole (5) is symmetrically distributed on the outer wall of the first heat-absorbing block (3).

5. A composite spinneret for differentially shrinking elastic polyester yarn according to claim 1, characterized in that: The second heat-absorbing block (6) is viewed from the front as a semi-annular structure, and the outer wall of the second heat-absorbing block (6) is connected to the inner wall of the heat-conducting block (2).

6. The composite spinneret for differential shrinkage elastic polyester yarn according to claim 1, characterized in that: The second heat-absorbing block (6) is matched with the heat-conducting block (2) through the second heat-absorbing hole (8), and the second heat-absorbing hole (8) is symmetrically distributed on the outer wall of the second heat-absorbing block (6).