Yarn package exchange device and apparatus for spinning machines for double prestrengthened yarn
AssigneesFritz Stahlecker, Hans Stahlecker
InventorsFritz Stahlecker, Dieter Lauschke
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Abstract
In the case of a process and an apparatus for the automatic exchange of yarn packages and spool cores at a spinning unit of a machine having a plurality of spinning units which each spin two prestrengthened yarns and wind them as a double yarn onto a spool core, it is provided that the winding-up is interrupted for the exchange of the yarn packages and spool cores, the full package is replaced by a spool core having a starter winding with a starter yarn, and in that the double yarn coming from the devices for the spinning and the starter yarn are placed in a splicing arrangement and are spliced together with one another, after which the winding-up is restarted.
Claims17
A process for automatically exchanging yarn packages and spool cores at a spinning unit of a machine having a plurality of spinning units which each contain devices for the spinning of two prestrengthened yarns and devices for winding these two yarns, as a double yarn, onto spool cores, to form yarn packages which serve as feeding packages for a subsequent twisting operation, said process comprising the sequential steps of:
- interrupting the winding;
- removing the full package taken out of the devices for the winding;
- replacing the full package by a spool core having a starter winding with a starter yarn;
- placing the double yarn coming from the devices for the spinning and the starter yarn in a splicing device and splicing them together with one another, and
- restarting the winding.
A spinning machine having a plurality of spinning units, each containing spinning means for the spinning of two prestrengthened yarns, yarn guide means for leading these prestrengthened yarns together to form a double yarn, and winding means for winding this double yarn onto a spool core, and automatic exchange apparatus for carrying out an automatic exchange of yarn packages and spool cores, said automatic exchange apparatus comprising:
- separating means for separating a full package from the winding means,
- spool replacing means for replacing the full yarn package by a spool core having a starter yarn,
- yarn splicing means,
- yarn placement means for placing the starter yarn and the double yarn coming from the spinning means in the splicing means,
- rewinding means for rewinding the double yarn connected with the starter yarn and
- spool core transfer means for transferring the spool core to the winding means.
Dependencies are inferred from the claim text.