Spinneret structure for a spinning assembly

Abstract

This utility model relates to the technical field of chemical fiber spinning equipment, and more particularly to a spinneret structure for a spinning assembly. The technical solution is as follows: a spinneret structure for a spinning assembly includes a connecting pipe and a ventilation assembly; the spinneret has several second mounting holes; the connecting pipe has several first mounting holes at its bottom; the spinneret is bolted to the connecting pipe, and a heat exchange zone is provided inside the connecting pipe; the outer wall of the connecting pipe is connected to two ventilation assemblies arranged vertically, and the connecting pipe has several annularly distributed through holes, which communicate with the ventilation assemblies and the heat exchange zone. This utility model connects to the two ventilation assemblies via an external heat exchanger, and delivers hot air to the heat exchange zone. The heat in the heat exchange zone is transferred to the connecting pipe, thereby heating the spinning melt, ensuring the fluidity of the spinning melt, and improving the quality of the filament bundle.

Description

Technical Field

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

[0002] A spinning assembly is a device that distributes and converts spinning melt into filaments. Under pressure, the spinning melt is extruded from the spinneret holes to form fiber bundles.

[0003] In the prior art, the spinning melt needs to travel a certain conveying distance before flowing to the spinneret. During this distance, the temperature of the spinning melt is easily reduced due to natural cooling, which reduces the fluidity of the spinning melt and affects the quality of the subsequent filament production. Utility Model Content

[0004] In order to overcome the shortcomings of the problems mentioned in the background, the present invention provides a spinneret structure for a spinning assembly.

[0005] The technical solution is as follows: a spinneret structure for a spinning assembly, comprising a spinneret with a plurality of spinneret holes; further comprising a connecting pipe and a ventilation assembly; the spinneret has a plurality of second mounting holes; the bottom of the connecting pipe has a plurality of first mounting holes; the spinneret is bolted to the connecting pipe, and the connecting pipe has a heat exchange zone inside; the outer wall of the connecting pipe is connected to two ventilation assemblies arranged vertically, and the connecting pipe has a plurality of annularly distributed through holes, which are connected to the ventilation assemblies and the heat exchange zone.

[0006] As an improvement to the above solution, an insulation layer is also included; an insulation layer is connected between the two ventilation components, and the insulation layer is wrapped around the connecting pipe to prevent heat in the heat exchange zone from diffusing to the outside, resulting in additional heat loss, causing the heat inside the connecting pipe to rise slowly, and insufficient heat resulting in poor fluidity of the spinning melt, which in turn affects the quality of the produced filament bundle.

[0007] As an improvement to the above solution, the upper ventilation component includes a ventilation ring and a connecting ring; the outer wall of the connecting pipe is connected to the ventilation ring, and the ventilation ring is provided with several through grooves, which are connected to through holes; the ventilation ring is connected to the connecting ring, and the left and right parts of the connecting ring are provided with connection ports for hot air to enter and exit, and an annular space is formed inside the connecting ring, which is connected to the through grooves.

[0008] As an improvement to the above solution, the bottom of the spinneret is provided with several reinforcing ribs, and there is a reinforcing rib distributed between every two adjacent spinnerets to increase the impact resistance between every two adjacent spinnerets and improve the service life of the spinneret.

[0009] As an improvement to the above solution, each reinforcing rib is set at an angle near the edge of the spinneret, thereby ensuring the strength of the spinneret while avoiding contact between the edge of the reinforcing rib and the ejected spinning melt, thus preventing the problem of residue near the spinneret.

[0010] As an improvement to the above solution, a sealing layer is provided on the spinneret, and the sealing layer is made of heat-resistant material. When the connecting pipe is bolted to the spinneret, the sealing layer is inserted into the heat exchange zone. At the same time, the top of the sealing layer is set lower than the through hole below. The sealing layer not only prevents hot air from leaking into the connecting pipe and coming into direct contact with the spinning melt in the heat exchange zone, but also prevents the spinning melt in the connecting pipe from entering the heat exchange zone, thereby avoiding the hot air from contacting the spinning melt and affecting the quality of the yarn bundle.

[0011] As an improvement to the above solution, a limiting groove is provided between the sealing layer and the spinneret hole. The limiting groove and the sealing effect of the heat exchange zone at the bottom of the connecting pipe fit together, thereby increasing the sealing effect of the heat exchange zone. At the same time, because the limiting groove is close to the lower through hole, and the lower through hole maintains a continuous air venting action, the sealing effect of the heat exchange zone is further enhanced.

[0012] As an improvement to the above solution, the insulation layer is hollow, and a gap is provided between the insulation layer and the outer wall of the connecting pipe fitting.

[0013] Beneficial effects:

[0014] 1. This utility model connects to the upper and lower ventilation components via an external heat exchanger and delivers hot air to the heat exchange zone. The heat in the heat exchange zone is transferred to the connecting pipe, thereby heating the spinning melt, ensuring the fluidity of the spinning melt, and improving the quality of the filament bundle.

[0015] 2. This utility model increases the impact resistance between two adjacent spinnerets by distributing a reinforcing rib between each pair of adjacent spinnerets, thereby improving the service life of the spinneret and preventing the spinning melt from continuously impacting the top surface of the spinneret, causing deformation of the spinneret and consequently the spinneret holes, which affects the quality of the filament bundle formation. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the first structure of the spinneret disclosed in this utility model.

[0018] Figure 3 This is a schematic diagram of a second structure of the spinneret disclosed in this utility model.

[0019] Figure 4 This is a cross-sectional view of the ventilation component disclosed in this utility model;

[0020] Figure 5 This is a cross-sectional view of the combined structure disclosed in this utility model.

[0021] Labels in the diagram: 1-Connecting fitting, 2-Spinneret, 3-Ventilation assembly, 4-Insulation layer, 301-Ventilation ring, 302-Connecting ring, 1001-Heat exchange zone, 1002-Through hole, 1003-First mounting hole, 2001-Spinneret hole, 2002-Reinforcing rib, 2003-Second mounting hole, 2004-Sealing layer, 2005-Limiting groove, 30101-Through groove, 30201-Connection port, 30202-Annular space. Detailed Implementation

[0022] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0023] Example 1

[0024] A spinneret structure for a spinning assembly, such as Figures 1-5 As shown, it includes a spinneret 2, which has a plurality of spinneret holes 2001. The spinning melt passes through the spinneret holes 2001 to form a filament bundle.

[0025] It also includes a connecting pipe 1 and a ventilation assembly 3; the spinneret 2 is provided with several second mounting holes 2003; the bottom of the connecting pipe 1 is provided with several first mounting holes 1003; the spinneret 2 is bolted to the connecting pipe 1, and the connecting pipe 1 is provided with a heat exchange zone 1001 inside; the outer wall of the connecting pipe 1 is connected to two ventilation assemblies 3 distributed vertically, and the connecting pipe 1 is provided with several through holes 1002 distributed in a ring, which are connected to the ventilation assembly 3 and the heat exchange zone 1001; the spinning melt first enters the connecting pipe 1, and then is connected to the upper and lower ventilation assemblies 3 through an external heat exchanger, and the hot air is transported to the heat exchange zone 1001. The heat in the heat exchange zone 1001 is transferred to the connecting pipe 1, thereby heating the spinning melt, ensuring the fluidity of the spinning melt, and improving the quality of the yarn bundle.

[0026] It also includes an insulation layer 4; the insulation layer 4 is connected between the two ventilation components 3, and the insulation layer 4 is wrapped around the connecting pipe 1 to prevent the heat in the heat exchange zone 1001 from spreading to the outside, resulting in additional heat loss, causing the heat inside the connecting pipe 1 to rise slowly and not enough heat, resulting in poor fluidity of the spinning melt, which in turn affects the quality of the produced filament bundle.

[0027] The upper ventilation assembly 3 includes a ventilation ring 301 and a connecting ring 302; the outer wall of the connecting pipe 1 is connected to the ventilation ring 301, and the ventilation ring 301 is provided with several through grooves 30101, which are connected to through holes 1002; the ventilation ring 301 is connected to the connecting ring 302, and the left and right sides of the connecting ring 302 are provided with connection ports 30201 for hot air inlet and outlet, and an annular space 30202 is formed inside the connecting ring 302, which is connected to the through grooves 30101; the output port of the external heat exchanger is connected to the lower connection port 30201, and the input port of the external heat exchanger is connected to the upper connection port 30201, and the external heat exchanger is connected through... The lower connection port 30201 introduces hot air into the annular space 30202. Subsequently, after passing through the annular space 30202, the hot air passes through several through slots 30101 and through holes 1002 into the heat exchange zone 1001. At this time, the hot air in the heat exchange zone 1001 gradually rises to the upper through hole 1002. During the process of the hot air gradually rising, the heat exchange of the spinning melt in the connecting pipe 1 is completed, thereby improving the fluidity of the spinning melt. Then, the external heat exchanger extracts the rising hot air through the upper connection port 30201, through the through slots 30101, through holes 1002 and annular space 30202, and inputs it into the external heat exchanger for reheating. Then, the above steps are repeated to achieve a continuous heat exchange process.

[0028] The bottom of the spinneret 2 is provided with several reinforcing ribs 2002, and there is a reinforcing rib 2002 distributed between every two adjacent spinnerets 2001. When the spinning melt is extruded downward under pressure in the connecting pipe 1, the spinning melt will continuously impact the top surface of the spinneret 2, which can easily cause the spinneret 2 to deform, and in turn cause the spinnerets 2001 to deform, affecting the quality of the filament forming. The reinforcing ribs 2002 can increase the impact resistance between every two adjacent spinnerets 2001 and improve the service life of the spinneret 2.

[0029] Each reinforcing rib 2002 is angled near the edge of the spinneret 2001, thereby ensuring the strength of the spinneret 2001 while avoiding contact between the edge of the reinforcing rib 2002 and the ejected spinning melt, thus preventing residue from remaining near the spinneret 2001.

[0030] A sealing layer 2004 is provided on the spinneret 2, and the sealing layer 2004 is made of heat-resistant material, as shown in the reference. Figure 5 As shown in the diagram, when the connecting pipe 1 is bolted to the spinneret 2, the sealing layer 2004 is inserted into the heat exchange zone 1001. At the same time, the top of the sealing layer 2004 is set lower than the through hole 1002 below. The sealing layer 2004 not only prevents hot air from leaking into the connecting pipe 1 and directly contacting the spinning melt in the heat exchange zone 1001, but also prevents the spinning melt in the connecting pipe 1 from entering the heat exchange zone 1001, thereby avoiding the hot air from contacting the spinning melt and affecting the quality of the yarn bundle.

[0031] A limiting groove 2005 is provided between the sealing layer 2004 and the spinneret 2001, for reference. Figure 5 As shown in the diagram, the sealing effect of the limiting groove 2005 and the bottom heat exchange zone 1001 of the connecting pipe 1 is mutually engaged, thereby increasing the sealing effect of the heat exchange zone 1001. At the same time, because the limiting groove 2005 is close to the lower through hole 1002, and the lower through hole 1002 maintains a continuous air venting action, the sealing effect of the heat exchange zone 1001 is further enhanced.

[0032] The insulation layer 4 is hollow, and there is a gap between the insulation layer 4 and the outer wall of the connecting pipe 1 to avoid direct contact between the insulation layer 4 and the connecting pipe 1, which would make it easy for the heat inside the connecting pipe 1 to be transferred to the insulation layer 4, thus reducing the insulation effect of the insulation layer 4.

[0033] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content described in the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. A spinneret structure for a spinning assembly, comprising a spinneret (2) having a plurality of spinneret holes (2001) disposed thereon; characterized in that, It also includes a connecting pipe (1) and a ventilation assembly (3); the spinneret (2) is provided with several second mounting holes (2003); the bottom of the connecting pipe (1) is provided with several first mounting holes (1003); the spinneret (2) is bolted to the connecting pipe (1), and the connecting pipe (1) is provided with a heat exchange zone (1001) inside; the outer wall of the connecting pipe (1) is connected to two ventilation assemblies (3) distributed vertically, and the connecting pipe (1) is provided with several through holes (1002) distributed in a ring, and the several through holes (1002) are connected to the ventilation assembly (3) and the heat exchange zone (1001).

2. The spinneret structure of a spinning assembly according to claim 1, characterized in that, It also includes an insulation layer (4); the two ventilation components (3) are connected by an insulation layer (4), and the insulation layer (4) is wrapped around the connecting pipe (1).

3. The spinneret structure of a spinning assembly according to claim 2, characterized in that, The upper ventilation component (3) includes a ventilation ring (301) and a connecting ring (302); the outer wall of the connecting pipe (1) is connected to the ventilation ring (301), and the ventilation ring (301) is provided with several through grooves (30101), which are connected to the through holes (1002); the ventilation ring (301) is connected to the connecting ring (302), and the left and right sides of the connecting ring (302) are provided with connection ports (30201) for hot air to enter and exit, and an annular space (30202) is formed inside the connecting ring (302), which is connected to the through grooves (30101).

4. The spinneret structure of a spinning assembly according to claim 3, characterized in that, The bottom of the spinneret (2) is provided with several reinforcing ribs (2002), and there is a reinforcing rib (2002) between every two adjacent spinnerets (2001).

5. The spinneret structure of a spinning assembly according to claim 4, characterized in that, Each reinforcing rib (2002) is angled near the edge of the spinneret (2001).

6. The spinneret structure of a spinning assembly according to claim 5, characterized in that, A sealing layer (2004) is provided on the spinneret (2), and the sealing layer (2004) is made of heat-resistant material.

7. The spinneret structure of a spinning assembly according to claim 6, characterized in that, A limiting groove (2005) is provided between the sealing layer (2004) and the spinneret (2001).

8. The spinneret structure of a spinning assembly according to claim 7, characterized in that, The insulation layer (4) is hollow, and there is a gap between the insulation layer (4) and the outer wall of the connecting pipe (1).

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