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. 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.

A spinning machine (1) features a multiple number of work stations (3) arranged side by side between two front-side ends (2) of the spinning machine (1) on at least one longitudinal side of the spinning machine (1), each of which features a multiple number of work elements for the production and winding of a yarn (31), whereas the work elements comprise at least one feed device (4), one spinning chamber (5), one draw-off device (6) and one winding device (7). The spinning machine (1) features drives for driving the work elements and a suction device (8) for generating negative pressure at the work stations (3). The suction device (8) includes at least one negative pressure source (9) and at least two negative pressure channels (10), which extends in the longitudinal direction of the spinning machine (1) only over one part of the work stations (3). Thereby, each work station (3) features an individual drive (11), in particular an individual electrical drive (11), for the draw-off device (6).

A method is provided for determining a functional status at a workstation of a textile machine that includes a plurality of the workstations, wherein each workstation includes at least one drive associated with a treatment device configured at the workstation to treat a fiber material. The method includes measuring a load variable of the drive and determining the functional status of the treatment device based on the measured load variable.

A textile machine and associated method are provided for operating the textile machine that includes a plurality of workstations, wherein each workstation includes at least one stepper motor configured to drive an element at the workstation. The method includes measuring a load variable, for example a load angle, of the stepper motor and detecting an approach of the element to an end position based on changes to the load variable.

A method is provided for operating a textile machine having a plurality of identical workstations wherein, during a normal operation of the workstations, yarn is produced or rewound from a supply bobbin onto a receiving bobbin at the workstations. After a stoppage at a plurality of the work stations, the method includes starting and setting the plurality of workstation into a normal operating mode. The method includes dividing the plurality of workstations into groups of workstations, and starting up the groups of workstations at different predefined times, such as predefined waiting times between consecutive groups of the work stations.

A method is provided for operating a textile machine having a plurality of identical workstations wherein, during a normal operation of the workstations, yarn is produced or rewound from a supply bobbin onto a receiving bobbin at the workstations. After a stoppage at a plurality of the work stations, the method includes starting and setting the plurality of workstation into a normal operating mode. The method includes dividing the plurality of workstations into groups of workstations, and starting up the groups of workstations at different predefined times, such as predefined waiting times between consecutive groups of the work stations.

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.

The invention relates to a method for controlling means of a workstation of a textile machine producing yarn (1) comprising a compensating unit (9) for the compensation of a yarn (1) loop with a compensating member (6, 8) and, optionally, with a rotary drum (7), whereby on the compensating unit (9) are further arranged internal means (10,15) and external means (14, 16) of detecting the compensating unit (9), in which the information from the internal means (10,15) and the external means (14, 16) of detection is used by a controller of work nodes of the workstation for the controlling activity of the control unit (11) and selection of activation of software procedures is performed on the basis of the information about the state in which the workstation is at a given moment (the course of yarn (1) formation and winding, servicing activity).

In addition, the invention also relates to a device for performing the method for controlling means of a workstation of a textile machine producing yarn (1), which comprises a control unit (11) coupled via a bidirectional communication channel to internal means (10, 15) or external means (14,16) of detecting the current state of the compensating unit (9) and to work nodes at the workstation of the textile machine, whereby the control unit (11) is provided with a decision-making and driving controller of the work nodes of the workstation according to the state of the compensating unit (9).

A method is provided for the enabling of machine functions on a spinning-mill machine comprising multiple components. The method includes transfer of machine-specific data to an enabling device that is physically remote from the spinning-mill machine; evaluation of the machine-specific data through the enabling device; selection of enabling data through the enabling device depending on the machine-specific data; transfer of the enabling data to the spinning-mill machine; and enabling of specific machine functions depending on the enabling data.

A method is provided for the enabling of machine functions on a spinning-mill machine comprising multiple components. The method includes transfer of machine-specific data to an enabling device that is physically remote from the spinning-mill machine; evaluation of the machine-specific data through the enabling device; selection of enabling data through the enabling device depending on the machine-specific data; transfer of the enabling data to the spinning-mill machine; and enabling of specific machine functions depending on the enabling data.