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Spinneret plate for melt spinning device

A melt spinning and spinneret technology, applied in the field of chemical fiber spinning, can solve problems such as clogging of the spinneret, and achieve the effects of reducing the contact surface, shortening the residence time, and avoiding degradation and carbonization.

Inactive Publication Date: 2017-02-08
南京右转信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a spinneret for a melt spinning device in view of the above-mentioned problems, which can effectively avoid the situation that the spinneret is blocked in the environment of horizontal air cooling, and the work is stable and reliable.

Method used

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  • Spinneret plate for melt spinning device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Such as figure 1 As shown, the spinneret for the melt spinning device of this embodiment includes a body 1, a group of guide holes 2 are provided on the feed side of the body, and the ends of the guide holes communicate with the outlet on the discharge side of the body. The spinneret hole 3, the outside of the body is provided with a thermal insulation cover 4, the axial direction of the thermal insulation cover is elongated along the discharge side of the body, and its elongated length is the axial length of the body 1.5-2.5 times.

[0022] In the spinneret for the melt spinning device described in this embodiment, the guide hole includes a cylindrical section and a curved surface transition section from the feed side to the discharge side, and the cylindrical section and the curved surface transition section The height ratio is 5:1.

[0023] In the spinneret for the melt spinning device, the guide holes are arranged concentrically.

Embodiment 2

[0025] The difference between this embodiment and Embodiment 1 is that, in the spinneret for the melt spinning device described in this embodiment, the guide holes are arranged in a rhombus shape.

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Abstract

The invention provides a spinneret plate for a melt spinning device. The spinneret plate comprises a main body and is characterized in that a set of guide holes are formed on a feeding side of the main body; the tail ends of the guide holes are communicated with spinneret holes on a discharging side of the main body; a heat-insulating sleeve is arranged on the exterior of the main body; the axial direction of the heat-insulating sleeve extends along the discharging side of the main body; the extending length of the heat-insulating sleeve is 1.5-2.5 times of the axial length of the main body. The spinneret plate for the melt spinning device can effectively prevent the spinneret plate from being blocked under a horizontal blowing cooling environment and the work is stable and reliable.

Description

[0001] Technical field: [0002] The invention relates to a spinneret for a melt spinning device, belonging to the technical field of chemical fiber spinning. [0003] Background technique: [0004] The melt spinning method is divided into polymerization method, blend spinning method and sheath-core composite spinning method. It is a commonly used spinning method. The melt from the screw extruder is sent to the spinneret assembly through a metering pump. The latter is composed of filter screen, distribution plate and spinneret, etc. Its function is to remove impurities in the melt and send the melt to the spinneret evenly. The existing spinneret is made of heat-resistant and corrosion-resistant stainless steel, and the small holes on the surface are arranged according to a certain rule, and the hole diameter is usually 0.2 to 0.5 mm. The melt passes through the small holes on the spinneret to form a thin stream of melt. After the thin stream of melt is sprayed out, it is cool...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01D4/02
CPCD01D4/02D01D4/027
Inventor 方征侯明明
Owner 南京右转信息科技有限公司