# US 2020/0399792 A1 · Optimization of the operation of a spinning machine

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- Number: US 2020/0399792 A1
- Document ID: US20200399792A1
- Status: Published application
- Kind: A1
- Application number: 16/904,541
- Filed: 2020-06-17
- Published: 2020-12-24
- Earliest claimed: 2019-06-18
- Assignees: Saurer Spinning Solutions GmbH & Co. KG
- Applicants: Saurer Spinning Solutions GmbH & Co. KG
- Inventors: Patrick Werheit; Jörg von Livonius; Philipp Schiffers; Anna Turowski; Jürgen Hüls; Jan Märtin; Michael Spitzer
- Web page: https://patentgrep.com/patent/US20200399792A1

## CPC

- D01H 1/20: Driving or stopping arrangements (for open-end spinning machines D01H4/12, D01H4/20, D01H4/42; safety devices D01H13/14)
- D01H 4/44: in rotor spinning
- D01H 4/42: Control of driving or stopping
- D01H 13/32: Counting, measuring, recording or registering devices
- D01H: SPINNING OR TWISTING (twisting oakum D01G35/00; crimping or curling of fibres, filaments, or yarns D02G1/00)

## Abstract

A method for optimizing the operation of a spinning machine with regard to quality and productivity is provided. An apparatus, comprising a control device and the spinning machine is provided. According to the invention, a yarn having specified yarn properties is produced, a quality parameter of the yarn is sensed during the spinning operation, a parameter for setting the production speed is specified, the quality parameter and the parameter for setting the production speed are evaluated, and the production speed is set in dependence on a target variable, the target variable comprising the quality parameter.

## Claims

### Claim 1

A method for optimizing the operation of a spinning machine with regard to quality and productivity, the method comprising:
producing a yarn having specified yarn properties;
sensing during the spinning operation a quality parameter of the yarn;
specifying a parameter for setting the production speed;
evaluating the quality parameter and the parameter for setting the production speed; and
setting in dependence on a target variable the production speed, the target variable comprising the quality parameter.

### Claim 2 (depends on 1)

The method according to claim 1, characterised in that a yarn break rate is sensed and evaluated and the target variable comprises the yarn break rate.

### Claim 3

An apparatus comprising a control device and a spinning machine, for producing a yarn having specified yarn properties, for sensing a quality parameter of the yarn during the spinning operation, and for specifying a parameter for setting the production speed,
the control device being designed to evaluate the quality parameter and the parameter for setting the production speed, and
the control device being designed in such a way that the production speed is set by the control device in dependence on a target variable, the target variable comprising the quality parameter.

### Claim 4 (depends on 3)

The apparatus according to claim 3, characterised in that the control device is designed to evaluate the yarn break rate, and the target variable comprises the yarn break rate.

### Claim 5 (depends on 3)

The apparatus according to claim 3, characterised in that the control device comprises a user interface, on which the parameter for setting the production speed and the target variable are simultaneously displayed.

### Claim 6 (depends on 3)

The apparatus according to claim 3, characterised in that the control device is designed to display the time curve of the parameter for setting the production speed and of the target variable.

### Claim 7 (depends on 3)

The apparatus according to claim 3, characterised in that a limit value for the target variable can be specified to the control device.

### Claim 8 (depends on 3)

The apparatus according to claim 3, characterised in that the control device is designed to determine proposals for a change to the parameter for setting the production speed.

### Claim 9 (depends on 3)

The apparatus according to claim 3, characterised in that the control device is designed to create and store data sets, which comprise the specified yarn properties, the parameter for setting the production speed, and the associated target variable.

### Claim 10 (depends on 9)

The apparatus according to claim 9, characterised in that the control device is designed to compare the data sets with the specified yarn properties and with a specified limit value for the target variable and to select a data set for the operation of the spinning machine in accordance with the comparison.

### Claim 11 (depends on 10)

The apparatus according to claim 10, characterised in that the control device has an interface for editing the selected data set.

### Claim 12 (depends on 11)

The apparatus according to claim 11, characterised in that the control device is designed to apply and store the edited data set.