Method for the thermal treatment of a running yarn and twisting machine for carrying out the method
AssigneeOerlikon Textile GmbH & Co. KG
InventorSiegfried Brenk
Life of this patent
Estimating the term…
Abstract
Method for thermal treatment of a running yarn (14) on a multi-workstation twisting machine, each station having a device (1) for thermal treatment of the yarn, and a delivery system (2, 3) preceding or following such device (1). The yarn (14) passes through the device (1) substantially without tension, and after passing the downstream delivery system (3), is wound. The yarn (14) is loaded with a defined force by position-variable means (24, 25, 27). Position changes of such means caused by a change in the yarn tension under disruptive influences during the thermal treatment of the yarn (14) are used as a control variable for controlling at least one of the delivery systems (2, 3).
Claims9
Method for the thermal treatment of a running yarn (14) on a twisting machine with a large number of workstations, which in each case have a device (1) for the thermal treatment of the running yarn, which is preceded or followed, respectively, by a delivery system (2, 3), whereby the yarn (14) passes through the device (1) substantially without tension, and in that the yarn (14), after passing the downstream delivery system (3), is wound, characterised in that the passing yarn (14) is loaded with a defined force of an order of magnitude up to 1 cN by position-variable means (24, 25, 27), the position change of which caused by a change in the yarn tension because of disruptive influences during the thermal treatment of the yarn (14) being used as a control variable for controlling at least one of the delivery systems (2, 3).
Twisting machine for comprising a large number of workstations, which in each case have a device (1) for the thermal treatment of a running yarn (14), which is preceded or followed, respectively, by a delivery system (2, 3) the yarn (14) being held substantially without tension during the thermal treatment in the device (1) between the two delivery systems (2, 3), characterized in that a mechanism (10) for influencing the yarn tension is arranged between the two delivery systems (2, 3) and comprises means (24, 25, 27,), which are at least partially position-variable to load the yarn (14) with a defined force of an order of magnitude up to 1 cN, the mechanism (10) being connected to a control mechanism (13), which is set up to use the change in position of the means (24, 25, 26) of the control mechanism (13) as a control variable to control the speed at least of one of the delivery systems (2, 3).
Dependencies are inferred from the claim text.