Device for entangling a plurality of individual threads of a composite thread

Patent metadata

Field	Value
Publication number	US-10988864-B2
Application number	US-201815883702-A
Country	US
Kind code	B2
Filing date	Jan 30, 2018
Priority date	Feb 1, 2017
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

Various techniques involve a device for entangling a plurality of individual threads of a composite thread in a melt-spinning process for the production of crimped yarns. The device to this end has a plurality of entanglement nozzles which are collectively held on a support. In order to enable a flexible utilization of the entanglement nozzles and of thread guiding, the entanglement nozzles on the support are assigned at least one thread guide in such a manner that the threads are guidable optionally in the entanglement nozzles and/or in the thread guide.

First claim

The invention claimed is:

1. Device for entangling a plurality of individual threads of a composite thread in a melt-spinning process for the production of crimped yarns, having
a plurality of entanglement nozzles which are collectively held on a support, each entanglement nozzle having a separate placing slot,
wherein the entanglement nozzles on the support are assigned at least one thread guide, the entanglement nozzles and the at least one thread guide providing respective ducts in such a manner that the ducts guide the threads optionally in the entanglement nozzles and/or in the thread guide, and
a guide groove for each thread guide, and
wherein the guide groove opens into a respective thread guide of the at least one thread guide, and wherein one of the placing slots opens into the guide groove.

2. Device according to claim 1 , wherein the thread guide is held on the support at a constant spacing from the entanglement nozzles.

3. Device according to claim 2 , wherein the entanglement nozzles are disposed on a reference circle about the at least one thread guide, and
wherein the entanglement nozzles are disposed on the reference circle at a regular pitch.

4. Device according to claim 3 , wherein each thread guide is formed by a U-shaped guide member which is disposed on a groove base of the respective guide groove that penetrates the support at an end side.

5. Device according to claim 4 , wherein at least one of the entanglement nozzles is formed by an insert member which is held in a receptacle opening of the support.

6. Device according to claim 5 , wherein the support is configured so as to be plate-shaped and has a respective placing slot of the placing slots that opens laterally into the receptacle opening, and
wherein the respective receptacle opening and the respective placing slot penetrate the support from an upper side to a lower side.

7. Device according to claim 6 , wherein a supply bore which extends between the receptacle opening and a compressed air connector that is configured on a distal end side of the support is configured within the support.

8. Device according to claim 7 , wherein the support for each entanglement nozzle has separate receptacle openings and separate supply bores having separate compressed air connectors.

9. Device according to claim 8 , wherein the insert member is formed from a wear-resistant material, and wherein the insert member has the respective duct which by way of a longitudinal slot is connected to the respective placing slot in the support and by way of a transverse slot s connected to the respective supply bore in the support.

10. Device according to claim 1 , wherein the support has a protruding support arm which has an auxiliary thread guide that is spaced apart so as to be opposite the thread guide, the threads when being placed being able to be guided through said auxiliary thread guide so as to be temporarily parked therein.

11. Device according to claim 1 , wherein the at least one thread guide is different from the entanglement nozzles.

12. Device for entangling a plurality of individual threads of a composite thread in a melt-spinning process for the production of crimped yarns, the device comprising:
a thread guide that defines a thread guide duct;
entanglement nozzles the define respective nozzle ducts; and
a support that holds the thread guide and the entanglement nozzles in fixed positions relative to each other, the support defining (i) an outer edge, (ii) a guide groove that extends from the outer edge into the thread guide duct defined by the thread guide, and (iii) separate placing slots that extend into the respective nozzle ducts defined by the entanglement nozzles, and wherein one of the placing slots opens into the guide groove.

13. Device according to claim 12 wherein the support further defines an upper side and a lower side;
wherein each of the thread guide duct and the respective nozzle ducts has an upper opening that opens on the upper side and a lower opening that opens on the lower side; and
wherein each of the guide groove and the separate placing slots extends completely from the upper side to the lower side.

14. Device according to claim 12 wherein a portion of the outer edge defined by the support forms a front access side of the support; and
wherein the guide groove opens toward the front access side of the support.

Assignees

• Oerlikon Textile Gmbh & Co Kg

Inventors

• Hubert Christian
• Legge Ludger
• Westphal Jan
• Holle Eike
• Stündl Mathias

Classifications

• D01D10/00

  Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected (finishing D02J) · CPC title

• D02G1/16 Primary

  using jets or streams of turbulent gases, e.g. air, steam {(interlacing filaments D02J1/08)} · CPC title

• D01D5/08

  Melt spinning methods {(D01D5/0023 takes precedence)} · CPC title

• D01D5/22 Primary

  with a crimped or curled structure; with a special structure to simulate wool (producing crimped or curled effects in filaments or threads after formation D02G1/00) · CPC title

• D02J1/08

  Interlacing constituent filaments without breakage thereof, e.g. by use of turbulent air streams · CPC title