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Equipment for melt spinning

A technology of melt spinning and equipment, applied in the equipment field of composite yarn

Inactive Publication Date: 2016-06-29
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, although this type of equipment offers high flexibility in the production of composite yarns, it has the disadvantage of high technical equipment requirements in order to spin filament bundles in parallel

Method used

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  • Equipment for melt spinning
  • Equipment for melt spinning
  • Equipment for melt spinning

Examples

Experimental program
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Embodiment Construction

[0028] in figure 1 Here, a schematic diagram of a first exemplary embodiment of an apparatus for melt-spinning a composite filament formed from a plurality of filament bundles according to the present invention is shown. Illustrates an exemplary embodiment in a running state in which two filament bundles guided in parallel are extruded in one spinning position, the two filament bundles are stretched to form a partial thread, and then Unite to form a composite thread. To this end, a heated nozzle support 1 is arranged in the spinning position, said nozzle support 1 supporting on the underside a spinning device constructed in the form of a spinning nozzle device 2 for extruding a plurality of Long tow. The spinning nozzle device 2 has two sets of nozzle holes 4.1 and 4.2 on the lower side, and a volume flow of polymer melt is supplied to each set of nozzle holes via the distributor device 3. To this end, the spinning nozzle device 2 is connected to the spinning pump 6 via a mel...

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PUM

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Abstract

The invention relates to a device for melt spinning a composite thread comprising a plurality of filament bundles. The device comprises a plurality of spinning means for extruding a plurality of filament bundles and a plurality of drawing and stretching means by which the filament bundles can be produced as partial threads having different extensions. In order to be able to extrude a plurality of filament bundles using as little equipment as possible, according to the invention, the spinning means are formed by a spinning nozzle device having a plurality of groups of nozzle holes on a nozzle plate, wherein the spinning nozzle device comprises at least one distributing means for generating unequal volume flows from a polymer melt, by means of which the filament bundles can be extruded in parallel.

Description

Technical field [0001] The present invention relates to an apparatus for melt spinning composite yarns formed from a plurality of filament bundles. Background technique [0002] In the melt spinning of synthetic yarns, multifilament yarns are usually produced, which are formed of a plurality of strip-like filaments. The filaments are bundled into filaments, stretched during the melt spinning process and wound onto a spool. However, such synthetic threads are not suitable for use in textiles due to their smooth structure and are therefore reprocessed during further processing in order to produce a defined surface structure, such as crimping. In order to obtain a structure by thermally reprocessing the synthetic yarn, a composite yarn formed by at least two filament bundles of different stretching is produced in a melt spinning process. Therefore, it is known that the shrinkage characteristics of synthetic threads depend on the degree of stretching. Therefore, the composite thre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D1/06D01D1/10D01D4/06D01D5/08
CPCD01D4/06D01D1/06D01D1/106D01D5/082
Inventor M·菲舍尔J·施特尔
Owner OERLIKON TEXTILE GMBH & CO KG
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