Low-adhesion spinning melt pipeline

A melt-pipe, low-adhesion technology for spinneret assemblies, textiles, and paper making that solves the problems of time and cost consumption, impact, and production disadvantages

Inactive Publication Date: 2017-12-29
陈慧忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Since the molten high-temperature polymer melt needs to transfer and flow in the spinning component, it is inevitable that the high-temperature melt will be in contact with the spinning component quality inspection, and it will inevitably be on the inner wall of the spinning component. There is adhesion. Although the inner wall of the spinning component can be processed smooth enough at present, the polymer adhesion caused by the inner wall surface problem has been greatly reduced. However, due to the processing accuracy and processing technology However, it is difficult to make the inner wall completely smooth, which will still cause polymer adhesion; in the prior art, there is also a solution to add a lubricant between the polymer and the inner wall of the spinning component during spinning, so that It will have a certain anti-adhesion effect, but these added lubricants will inevitably enter the polymer, and then the properties of the polymer and the properties of subsequent spinning will have unpredictable effects, and it is not advisable
Due to the adhesion of the polymer during the spinning process, it is necessary to thoroughly clean the spinning group after the production plan of a batch is not completed. The cleaning of the spinning group will lead to a great consumption of time and cost, and There will still be some dead corners that are difficult to clean, which will adversely affect subsequent production

Method used

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  • Low-adhesion spinning melt pipeline

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Embodiment Construction

[0034] The present invention will be described in detail below in conjunction with specific embodiments and accompanying drawings.

[0035] A low-adhesion spinning melt pipe, the melt pipe includes a melt pipe outer cylinder 1 and a melt pipe liner 2, and the melt pipe liner 2 is located inside the melt pipe outer cylinder 1; the melt Both the pipe outer cylinder 1 and the melt pipe liner 2 have an open head end and a tail end, and an inner cavity is formed in the melt pipe liner 2, and the wall of the melt pipe liner 2 and the melt pipe outer cylinder There is a gap 3 between the wall of the 1 cylinder, and a sealing structure is provided between the wall of the tail end and the head end of the opening of the melt pipe liner 2 and the wall of the outer cylinder 1 of the melt pipe, and the melt pipe liner The head end and tail end of the opening of 2 are respectively sealed and installed with a head end filter device 4 and a tail end filter device 5; a concave-convex anti-adhe...

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Abstract

A low-adhesion spinning melt pipe of the present invention, the melt pipe includes a melt pipe outer cylinder and a melt pipe bushing, the melt pipe bushing is located inside the melt pipe outer cylinder, and the melt pipe bushing Concave-convex anti-adhesion structures are provided on the inner walls of the parts in contact with the molten polymer, which can realize the anti-adhesion effect of the polymer melt in the spinning assembly; the concave-convex anti-adhesion structures include concave parts and convex parts, The raised part is set higher than the surface of the inner wall of the part, using the support between points to reduce the direct contact between the high-viscosity polymer melt and the inner wall of the part, and forms a gas suspension effect under the action of the high-temperature and high-pressure melt, Play a self-separating anti-adhesion.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a low-adhesion spinning melt pipeline. Background technique [0002] The earliest record of the melt spinning process comes from a British patent in 1845. In 1939, melt spinning was industrialized as a production process for the manufacture of nylon 66 fibers. The basic process of melt spinning includes material melting, extrusion from the micropores of the spinneret, and cooling and solidification of the melt stream. The finished filament can be wound into a bobbin or otherwise processed. In the process of melt spinning, the polymer is fed into the extruder, conveyed by the screw, plasticized, melted and then forwarded to the metering accumulator: the metering polymer ensures that the melt of the polymer can flow stably and evenly into the In the spinning assembly of the key component, the melt in the spinning assembly is filtered by the filter medium to remove impurities an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D4/06D01D4/00
CPCD01D4/06D01D4/00
Inventor 陈慧忠
Owner 陈慧忠
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