Residence time controllable melt spinning assembly

A melt spinning and residence time technology, which is used in spinneret assemblies, spinning solution degassing, textiles and papermaking, etc. Short and other problems, to achieve the effect of improving heat exchange and uniform melt temperature

Pending Publication Date: 2020-02-14
CHINESE TEXTILE ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] For the above reasons, process technicians try to solve the abnormal spinning caused by improper residence time by adjusting the temperature according to the time-temperature equivalent principle of polymer performance change, but they can only achieve the goal within a certain range.
[0008] The spinning pack in the prior art still has the following problems: the temperature of the melt in the center and the periphery of the pack is not uniform, the e...

Method used

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  • Residence time controllable melt spinning assembly
  • Residence time controllable melt spinning assembly
  • Residence time controllable melt spinning assembly

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Embodiment Construction

[0053] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention , but not to limit the scope of the present invention.

[0054] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, ...

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Abstract

The invention relates to the technical field of polymer melt spinning key equipment, in particular to a residence time controllable melt spinning assembly, comprising an outer casing with an inner cavity; a transitional plate is arranged in the upper portion of the inner cavity, a spinneret plate is arranged at the lower end of the inner cavity, a sand cup is arranged between the transitional plate and the spinneret plate, and is provided with a sand cavity with an upper opening, a gland which is changeable is arranged at the upper opening of the sand cavity, and the volume of the sand cavityis regulated according to different degree of protrusions of the bottom surfaces of the different glands facing the inside of the sand cavity. The gland which is changeable is matched with the sand cavity so that the sand cavity can have different volume. When the spinning assembly is used for spinning fibers in different fiber number, the volume of the sand cavity can be increased or decreased doubly flexibly, the residence time of a melt in the sand cavity can be regulated effectively, and thus, degradation of the melt can be decreased remarkably and the purpose of smooth spinning is achieved.

Description

technical field [0001] The invention relates to the technical field of key equipment components for polymer melt spinning, in particular to a melt spinning component with controllable residence time. Background technique [0002] As the core component of chemical fiber spinning, the spinning component has a wide range of application values ​​in chemical fiber spinning. Its function is mainly to filter and evenly redistribute and mix the spinning melt, and transport it to the spinneret to spray it into filaments. The installation form can be divided into top and bottom, and the structure can be divided into cup type and rectangular type. [0003] At present, most of the domestic polymer melt spinning components adopt the melt spinning components originally created and designed by the German Barmag company. Most of them originated from the spinning pack formed by imitating the structure. [0004] In the prior art, the structure of the sand chamber includes a metal filter san...

Claims

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Application Information

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IPC IPC(8): D01D1/10D01D4/00D01D13/02
CPCD01D1/106D01D4/00D01D13/02
Inventor 甘丽华李鑫姜峰吴鹏飞史杰宁王雪
Owner CHINESE TEXTILE ACAD
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