Apparatus and process for the control of piecing in spinning devices
AssigneeRieter Ingolstadt Spinnereimaschinenbau AG
InventorWolfgang Thierron
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Abstract
The present invention relates to a process for the control of the piecing process in a spinning device, in particular an open-end spinning device with rotors, as well as to a device to carry out the process. It is the object of the present invention to make it possible to trigger the piecing process without having to change the structure of the rotor or of the bearing disks of a spinning device. This problem is solved in that the piecing process is carried out and/or controlled in function of physical magnitudes or states and/or their changes in a spinning device. According to the invention, the device is provided with a measuring device to detect physical magnitudes connected with the control of the piecing process.
Claims19
A method for controlling the process of piecing yarn in a spinning device, said method comprising the steps of:
- detecting with a sensor at least one measurable physical state within the spinning device that varies as a function of rotational speed of a spinning element within the spinning device without directly sensing or detecting rotational movement of the spinning element;
- measuring with a measuring device the physical state within the spinning device that is detected by the sensor;
- determining with the measuring device the rotational speed at which the spinning element within the spinning device spins;
- and
- controlling the piecing process dependent upon the measurements of the physical state and the determined speed of the spinning element.
A device for controlling the process of piecing yarn in a spinning device having a spinning element therein, said device comprising:
- a sensor for detecting at least one measurable physical state within said spinning device that varies as a function of rotational speed of said spinning element without directly sensing or detecting rotational movement of said spinning element;
- a measuring device in connection with said sensor for measuring said physical state within said spinning device that said sensor detects;
- wherein said measuring device determines the speed of said spinning element within said spinning device;
- and
- a control device that is connected to said measuring device which controls the piecing of the yarn dependent upon said measurements of said physical state and the determination of said speed at which said spinning element rotates.
Dependencies are inferred from the claim text.