Yarn clearer and spinning station, equipped therewith, of a spinning machine, and method for operating a spinning station

Patent metadata

Field	Value
Publication number	US-10246292-B2
Application number	US-201415026556-A
Country	US
Kind code	B2
Filing date	Oct 1, 2014
Priority date	Oct 1, 2013
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

The invention relates to a spinning station ( 1 ) of a spinning machine, wherein the spinning station ( 1 ) has a spinning means ( 2 ) for producing a yarn ( 3 ) from a sliver ( 4 ) fed to the spinning means ( 2 ), wherein the spinning station ( 1 ) has a winding apparatus ( 20 ) for winding the yarn ( 3 ) onto a package ( 16 ), said winding apparatus ( 20 ) being arranged downstream of the spinning means ( 2 ) in a transport direction of the yarn ( 3 ), wherein the spinning station ( 1 ) has a yarn clearer ( 5 ) arranged between the spinning means ( 2 ) and the winding apparatus ( 20 ), the yarn being monitorable for yarn defects with the aid of said yarn clearer ( 5 ), and wherein the spinning station ( 1 ) is assigned a controller ( 6 ) which is configured to interrupt the production of the yarn ( 3 ) if a defined yarn defect is detected. The invention proposes that the spinning station ( 1 ) has an information unit ( 7 ) with the aid of which it is possible to display to an operator of the spinning station ( 1 ) how much yarn ( 3 ) has to be at least unwound from the package ( 16 ) located in the winding apparatus ( 20 ) following the interruption to the yarn production in order to ensure that the yarn section having the yarn defect has been completely removed from the package ( 16 ). Furthermore, a yarn clearer and a method for operating a spinning station are proposed.

First claim

The invention claimed is:

1. A spinning station of a spinning machine, comprising:
a spinning means for producing a yarn from a sliver fed to the spinning means;
a winding apparatus that winds the yarn from the spinning means onto a package, the winding apparatus arranged downstream of the spinning means in a transport direction of the yarn;
a yarn clearer arranged between the spinning means and the winding apparatus, the yarn clearer configured to monitor for yarn defects in the yarn prior to the yarn being wound onto the package;
a controller in communication with the yarn clearer and configured to interrupt production of the yarn upon detection of a defined yarn defect by the yarn clearer; and
an information unit in communication with the controller and disposed so as to be visible to an operator of the spinning station, the information unit comprising a display that, prior to yarn being unwound from the package, visibly informs the operator of a minimum yarn length to subsequently unwind from the package following the interruption of yarn production in order to ensure that the yarn defect will be completely removed from the package.

2. The spinning station according to claim 1 , wherein the display comprises individual display elements, each display element representing a defined length of yarn to be unwound from the package in order to ensure that the yarn defect has been completely removed from the package.

3. The spinning station according to claim 1 , wherein the display comprises an individual display element that indicates to the operator that the package is to be removed from the winding apparatus because the length of yarn to be unwound from the package exceeds a predetermined maximum length.

4. The spinning station according to claim 1 , wherein the information unit is a component of the yarn clearer.

5. A yarn clearer for a spinning station of a spinning machine, wherein the spinning station has a spinning means for producing a yarn from a sliver fed to the spinning means, a winding apparatus for winding the yarn onto a package, a controller configured to interrupt production of the yarn if a defined yarn defect is detected, the yarn clearer comprising:
an information unit disposed so as to be visible to an operator of the spinning station, the information unit comprising a display that, prior to yarn being unwound from the package, visibly informs the operator of a minimum yarn length to subsequently unwind from the package following the interruption of yarn production in order to ensure that the yarn defect will be completely removed from the package.

6. The yarn clearer according to claim 5 , wherein the display comprises individual display elements, each display element representing a defined length of yarn to be unwound from the package in order to ensure that the yarn defect has been completely removed from the package.

7. The yarn clearer according to claim 5 , wherein the display comprises an individual display element that indicates to the operator that the package is to be removed from the winding apparatus because the length of yarn to be unwound from the package exceeds a predetermined maximum length.

8. A method for operating a spinning station of a spinning machine where a sliver is fed to a spinning means for production of a yarn, the method comprising:
winding the yarn produced by the spinning means on a package with a winding apparatus arranged downstream from the spinning means in a transport direction of the yarn;
monitoring the yarn for yarn defects with a yarn clearer arranged between the spinning means and the winding apparatus;
interrupting production of the yarn if a defined yarn defect is detected by the monitoring step; and
with an information unit, prior to unwinding yarn from the package, displaying to an operator a minimum length of yarn to subsequently unwind from the package after the interruption of yarn production in order to ensure that the yarn defect will be completely removed from the package.

9. The method according to claim 8 , wherein the yarn defect detected by the yarn clearer is assigned to one of several categories depending on the length of yarn having the yarn defect, and that the length of yarn to be unwound displayed by the information unit is selected depending on the respective category.

10. The method according to claim 8 , wherein the information unit signals to the operator that the package is to be removed from the winding apparatus when the length of yarn to be unwound exceeds a predetermined maximum length.

11. The method according to claim 8 , wherein the length of the yarn having the yarn defect is determined with a sensor configured with the yarn clearer.

Assignees

• Rieter Ag Maschf

Inventors

• Burchert Mathias

Classifications

• D01H13/22

  responsive to presence of irregularities in running material · CPC title

• D01H4/50

  for rotor spinning · CPC title

• B65H2701/31

  Textiles threads or artificial strands of filaments · CPC title

• B65H63/062

  Electronic slub detector · CPC title

• B65H63/036 Primary

  characterised by the combination of the detecting or sensing elements with other devices, e.g. stopping devices for material advancing or winding mechanism · CPC title