A nozzle for dry jet wet spinning

Abstract

The utility model discloses a kind of spray heads for dry-jet wet spinning method spinning, including the connector of being installed on spinning machine, the connector is connected with spray head shell, the inside of spray head shell is provided with the through-hole of boss structure, and the inside lower end boss of spray head shell is provided with spray head, spray head is boss structure, the upper surface of the spray head is provided with distribution plate, the distribution plate is boss structure, and the boss of distribution plate is located inside spray head, through-hole is set in distribution plate, the inside space of spray head shell is reduced by the boss of distribution plate, distribution plate is the inside bonding of boss lower end and spray head, the upper surface of the distribution plate is provided with filter screen, gasket no.2 is equipped between the upper surface of filter screen and the lower end of connector, can effectively reduce the space inside spray head shell, so that melt volume is reduced by more than 80%, to reduce melt residence time and bubble generation in this way, improve spinning stability, reduce spray frequency and worker operation intensity.

Description

Technical Field

[0001] This utility model relates to the field of spinning machine technology, specifically to a nozzle for dry-jet wet spinning. Background Technology

[0002] In the spinning process, the spinneret directly affects the quality of the process, and the spinneret contains a distribution plate. Traditional distribution plates (such as...) Figure 4 The presence of a large cavity between the molten material and the nozzle housing leads to prolonged melt residence time, which easily generates bubbles and causes degradation. Bubbles enter the spinneret orifice with the melt, resulting in broken or drifting filaments, reducing the success rate of "head lifting" (new head formation), increasing the waste filament rate, and requiring frequent spindle breakage to replace the nozzle. This results in high labor intensity for workers and low production efficiency. The existing distribution plate does not distribute the melt evenly, exacerbating the blockage of the spinneret orifice and shortening the lifespan of the nozzle. While adding a filter layer or extending the flow channel can reduce bubbles, it increases pressure loss and does not solve the cavity space problem. Adopting a complex exhaust structure increases manufacturing costs and maintenance difficulty. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a nozzle for dry-jet wet spinning. The nozzle has a simple structure and can effectively reduce the space inside the nozzle shell, thereby reducing the melt volume by more than 80%. This reduces the melt residence time and bubble generation, improves spinning stability, reduces the frequency of nozzle changes and the intensity of worker operation, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a nozzle for dry-jet wet spinning, comprising a connector mounted on a spinning machine, a nozzle housing connected to the connector, a through hole with a boss-shaped structure inside the nozzle housing, and a nozzle with a boss-shaped structure at the lower end of the nozzle housing. The nozzle has a distribution plate with a boss-shaped structure on its upper surface. The distribution plate has a boss-shaped structure, and the boss of the distribution plate is located inside the nozzle. A through hole is provided in the middle of the distribution plate. The boss of the distribution plate reduces the internal space of the nozzle housing. The lower end of the boss of the distribution plate fits against the inside of the nozzle. A filter screen is provided on the upper surface of the distribution plate. A gasket is provided between the upper surface of the filter screen and the lower end of the connector.

[0005] Furthermore, the nozzle housing has a hexagonal prism structure, and the nozzle housing is connected to the connector via a threaded connection.

[0006] Furthermore, the distribution plate is made of SUS316L stainless steel, with a diameter of 26mm, a thickness of 10mm, a boss height of 10mm, and a tapered chamfer at the upper end of the through hole.

[0007] Furthermore, the filter screen includes a filter screen body, which has a circular structure, and a rubber support ring is provided at the outer edge of the filter screen body, which improves the sealing effect between the filter screen and the distribution plate.

[0008] Furthermore, a gasket is provided between the nozzle housing and the nozzle. The gasket is located on the upper surface of the inner step of the nozzle housing. The gasket prevents adhesive from leaking out from the gap between the nozzle housing and the nozzle, thereby making the connection between the gasket and the nozzle housing tighter.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the rubber support ring improves the sealing effect between the filter screen and the distribution plate; the gasket prevents adhesive from escaping from the gap between the nozzle housing and the nozzle, thus making the connection between the gasket and the nozzle housing tighter; and the protrusion of the distribution plate occupies the internal space of the nozzle housing, thereby reducing the internal space of the nozzle housing, which in turn reduces melt residence time and bubble generation. This molten spinning nozzle for spinning machines has a simple structure and can effectively reduce the internal space of the nozzle housing, reducing the melt volume by more than 80%, thereby reducing melt residence time and bubble generation, improving spinning stability, and reducing the frequency of nozzle changes and the intensity of worker operation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic cross-sectional view of the present invention. Figure 3 This is a partially enlarged structural schematic diagram of the cross-section of this utility model; Figure 4 This is a schematic diagram of the distribution plate structure before the improvement of this utility model.

[0011] In the diagram: 1 Connector, 2 Nozzle housing, 3 Nozzle, 4 Distribution plate, 5 Gasket II, 6 Filter screen, 7 Gasket I. Detailed Implementation

[0012] 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.

[0013] Please see Figure 1-4This utility model provides a technical solution: a nozzle for dry-jet wet spinning, including a connector 1 installed on a spinning machine, a nozzle housing 2 connected to the connector 1, a through hole with a boss-like structure inside the nozzle housing 2, and a nozzle 3 with a boss-like structure at the lower end of the nozzle housing 2. The nozzle 3 has a boss-like structure, and a distribution plate 4 with a boss-like structure is provided on the upper surface of the nozzle 3. The boss of the distribution plate 4 is located inside the nozzle 3, and a through hole is provided in the middle of the distribution plate 4. The protrusion on the distribution plate 4 reduces the internal space of the nozzle housing 2. The lower end of the protrusion on the distribution plate 4 fits snugly against the interior of the nozzle 3. A filter screen 6 is provided on the upper surface of the distribution plate 4. A washer 5 is provided between the upper surface of the filter screen 6 and the lower end of the connector 1. The nozzle housing 2 has a hexagonal prism structure and is connected to the connector 1 by a threaded connection. The distribution plate 4 is made of SUS316L stainless steel and has a diameter of 26mm and a thickness of 10mm. The boss height of the distribution plate 4 is 10mm, and the upper end of the through hole of the distribution plate 4 is provided with a tapered chamfer. The filter screen 6 includes a filter screen body, which has a circular structure, and a rubber support ring is provided at the outer edge of the filter screen body. The rubber support ring makes the sealing effect between the filter screen 6 and the distribution plate 4 better. A gasket 7 is provided between the nozzle housing 2 and the nozzle 3. The gasket 7 is located on the upper surface of the inner step of the nozzle housing 2. The gasket 7 can prevent the adhesive from running out from the gap between the nozzle housing 2 and the nozzle 3, so that the connection between the gasket 7 and the nozzle housing 2 is tighter. The boss of the distribution plate 4 occupies the internal space of the nozzle housing 2, thereby reducing the internal space of the nozzle housing 2, thereby reducing the melt residence time and the generation of bubbles. This spinning machine uses a melt spinning nozzle with a simple structure, which can effectively reduce the internal space of the nozzle housing, reducing the melt volume by more than 80%, thereby reducing the melt residence time and the generation of bubbles, improving spinning stability, reducing the frequency of nozzle changes and the intensity of worker operation.

[0014] In use: The rubber support ring improves the sealing effect between the filter screen 6 and the distribution plate 4. The gasket 7 prevents adhesive from escaping from the gap between the nozzle housing 2 and the nozzle 3, thus making the connection between the gasket 7 and the nozzle housing 2 tighter. The protrusion of the distribution plate 4 occupies the internal space of the nozzle housing 2, thereby reducing the internal space of the nozzle housing 2 and reducing the melt residence time and the generation of bubbles.

[0015] 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.

Claims

1. A nozzle for dry-jet wet spinning, comprising a connector (1) mounted on a spinning machine, characterized in that: The connector (1) is connected to a nozzle housing (2). The nozzle housing (2) has a through hole with a boss-shaped structure inside. A nozzle (3) is provided at the lower boss inside the nozzle housing (2). The nozzle (3) has a boss-shaped structure. A distribution plate (4) is provided on the upper surface of the nozzle (3). The distribution plate (4) has a boss-shaped structure. The boss of the distribution plate (4) is located inside the nozzle (3). A through hole is provided in the middle of the distribution plate (4). The boss of the distribution plate (4) reduces the internal space of the nozzle housing (2). The lower end of the boss of the distribution plate (4) fits into the inside of the nozzle (3). A filter screen (6) is provided on the upper surface of the distribution plate (4). A washer (5) is provided between the upper surface of the filter screen (6) and the lower end of the connector (1).

2. The nozzle for dry-jet wet spinning according to claim 1, characterized in that: The nozzle housing (2) has a hexagonal prism structure and is connected to the connector (1) by a threaded connection.

3. The nozzle for dry-jet wet spinning according to claim 1, characterized in that: The distribution plate (4) is made of SUS316L stainless steel and has a diameter of 26mm, a thickness of 10mm, a boss height of 10mm, and a tapered chamfer at the upper end of the through hole.

4. The nozzle for dry-jet wet spinning according to claim 1, characterized in that: The filter (6) includes a filter body, which is circular in structure, and a rubber support ring is provided at the outer edge of the filter body.

5. The nozzle for dry-jet wet spinning according to claim 1, characterized in that: A washer (7) is provided between the nozzle housing (2) and the nozzle (3), and the washer (7) is located on the upper surface of the inner step of the nozzle housing (2).

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