Method for cleaning a spinning rotor of open-end spinning machine having at least one spinning device, and a cleaning device for cleaning a spinning rotor

Patent metadata

Field	Value
Publication number	US-10844522-B2
Application number	US-201816118589-A
Country	US
Kind code	B2
Filing date	Aug 31, 2018
Priority date	Sep 1, 2017
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

An open-end spinning machine and control method are provided for cleaning a spinning rotor of a spinning device in which at least one cleaning measure is carried out on the spinning rotor with the aid of a pneumatic or a mechanical cleaning device. With a control unit associated with the open-end spinning machine, settings are specified for the cleaning device to carry out the cleaning measure, wherein the settings are empirically determined based on one or more operational parameters of the spinning rotor. Operational parameters are stored in a memory bank associated with the control unit. The specific settings for carrying out the cleaning measure for a particular spinning rotor are automatically determined by reference to the operational parameters stored in the memory bank that are applicable to the particular spinning rotor.

First claim

The invention claimed is:

1. A method for cleaning a spinning rotor of a spinning device in an open-end spinning machine in which at least one cleaning measure is carried out on the spinning rotor with the aid of a pneumatic or a mechanical cleaning device, comprising:
storing parameters in a memory bank, wherein settings for carrying out the cleaning measure are automatically determined by a control unit associated with the open-end spinning machine based on present parameters of the spinning device;
with a control unit associated with the open-end spinning machine and the memory bank, specifying settings for carrying out the cleaning measure by one or both of:
previously empirically determined settings for carrying out the cleaning measure suitable for the present parameters of the spinning device stored in the memory bank; or
rules for determining the settings suitable for the present parameters the spinning device stored in the memory bank;

wherein a cover element of the spinning device is at least partially opened in order to carry out the cleaning measure; and
wherein the settings include an opening angle of the cover element that is changeable and determined based on one or both of the parameters of type of the spinning rotor or type of a channel insert adapter used with the spinning rotor and rotor.

2. The method as in claim 1 , wherein the parameters further comprise any one or combination of the following parameters of the spinning device: type of material being processed at the spinning device, and yarn count.

3. The method as in claim 1 , wherein the settings for carrying out the cleaning measure further comprise any one or combination of: duration of the cleaning measure; speed of the spinning rotor for the cleaning measure; direction of rotation of the spinning rotor for the cleaning measure; number of repetitions of the cleaning measure; reversing of the spinning rotor for the cleaning measure; and type of the cleaning measure.

4. The method as in claim 1 , wherein the parameters further include any one or combination of the following setting parameters for the cleaning measure: duration of cleaning of the spinning rotor; direction of rotation of the spinning rotor; number of repetitions of the cleaning measure; a reversing of the spinning rotor; and type of the cleaning measure.

5. The method as in claim 1 , wherein the cleaning measure is carried out with a cleaning device that is situated in a movable maintenance unit and is initially advanced toward the spinning rotor to be cleaned and, subsequently, the spinning rotor is accelerated to a defined cleaning speed with a drive and, once the cleaning speed has been reached, or thereafter, a cleaning element of the cleaning device is brought into action on the spinning rotor and the spinning rotor is cleaned.

6. The method as in claim 5 , wherein the defined cleaning speed is less than an operating speed of the spinning rotor.

7. A method for cleaning a spinning rotor of a spinning device in an open-end spinning machine in which at least one cleaning measure is carried out on the spinning rotor with the aid of a pneumatic or a mechanical cleaning device, comprising:
storing parameters in a memory bank, wherein settings for carrying out the cleaning measure are automatically determined by a control unit associated with the open-end spinning machine based on present parameters of the spinning device;
with a control unit associated with the open-end spinning machine and the memory bank, specifying settings for carrying out the cleaning measure by one or both of:
previously empirically determined settings for carrying out the cleaning measure suitable for the present parameters of the spinning device stored in the memory bank; or
rules for determining the settings suitable for the present parameters of the spinning device stored in the memory bank;

wherein a cover element of the spinning device is at least partially opened in order to carry out the cleaning measure;
wherein the parameters comprise at least type of a channel insert adapter or type of the spinning rotor, and the settings include at least an opening angle of the cover element of the spinning element; and
wherein the cleaning measure comprises multiple cleaning steps and assigned to each of the cleaning steps is a separate opening angle of the cover element.

8. A method for cleaning a spinning rotor of a spinning device in an open-end spinning machine in which at least one cleaning measure is carried out on the spinning rotor with the aid of a pneumatic or a mechanical cleaning device, comprising:
storing parameters in a memory bank, wherein settings for carrying out the cleaning measure are automatically determined by a control unit associated with the open-end spinning machine based on present parameters of the spinning device;
with a control unit associated with the open-end spinning machine and the memory bank, specifying settings for carrying out the cleaning measure by one or both of:
previously empirically determined settings for carrying out the cleaning measure suitable for the present parameters of the spinning device stored in the memory bank; or
rules for determining the settings suitable for the present parameters of the spinning device stored in the memory bank;

wherein the cleaning measure is carried out with a cleaning device that is situated in a movable maintenance unit and is initially advanced toward the spinning rotor to be cleaned and, subsequently, the spinning rotor is accelerated to a defined cleaning speed with a drive and, once the cleaning speed has been reached, or thereafter, a cleaning element of the cleaning device is brought into action on the spinning rotor and the spinning rotor is cleaned;
wherein the defined cleaning speed is less than an operating speed of the spinning rotor; and
wherein the drive is shut down once the cleaning speed has been reached, and subsequent to the spinning rotor running down, the spinning rotor is accelerated back to the cleaning speed again with the drive and the cleaning element is brought into action on the spinning rotor again.

9. The method as in claim 8 , wherein the spinning rotor is driven in a reversing manner during the cleaning measure, or a direction of rotation of the single drive is reversed for the subsequent acceleration of the spinning rotor back to the cleaning speed.

10. An open-end spinning machine, comprising:
a spinning device, the spinning device comprising a spinning rotor;
a cleaning device configured to carry out a cleaning measure on the spinning rotor;
a control unit associated with the open-end spinning machine, the control unit configured to:
automatically determine settings for the cleaning measure using stored parameters in a memory bank based on present parameters of the spinning device by one or both of:
previously empirically determined settings for carrying out the cleaning measure suitable for the present parameters of the spinning device stored in the memory band; or
rules for determining the settings suitable for the present parameters of the spinning device stored in the memory bank;

a cover element of the spinning device that is at least partially opened in order to carry out the cleaning measure; and
wherein the settings include an opening angle of the cover element that is changeable and determined based on one or both of the parameters of type of the spinning rotor or type of a channel insert adapter used with the spinning rotor and rotor.

11. The open-end spinning machine as in claim 10 , the spinning device comprises a drive for driving the spinning rotor and a separate drive for opening the cover element of the spinning device.

Assignees

• Rieter Ag Maschf

Inventors

• Widner Harald
• Baier Frank
• Fritz Sebastian

Classifications

• D01H4/24 Primary

  in rotor spinning · CPC title

• D01H4/48

  Piecing arrangements; Control therefor {(stopping roving D01H13/18)} · CPC title