APC (Anti-Patterning Control)
The APC upgrade package for rotor spinning machines optimizes package build.
Higher draw-off speeds in weaving and knitting make optimal package build increasingly important. Preventing pattern winding results in improved take-off behaviour in downstream processing. Electronic anti-patterning such as that in use since the R 40 rotor spinning machine (Version 4), has demonstrated its outstanding qualities in the field. Customers with R 1, R 20 and R 40 (Version 1 to 3) rotor spinning machines can now also benefit from this innovation. The APC (Anti-Patterning Control) upgrade package has been developed for this purpose. The mechanical regulating wheel has been replaced here by a frequency-controlled, motor-driven anti-patterning.
The conversion kit is available for R 1, R 20 and R 40 (Version 1 to 3) rotor spinning machines.
In addition to the mechanical regulating wheel, other parts susceptible to wear - such as the special belt and the mechanical anti-patterning gear - are also dispensed with in the new system. This reduces maintenance effort. The new system completely eliminates the cost of purchasing or replacing these mechanical parts.
Perfect package build is the result of optimal anti-patterning. This prevents first-order pattern winding (1:1 pattern winding) and uncontrolled package winding. A separate motor with an electronic random-check generator ensures optimal anti-patterning. The rotation speed of the traversing gear can be finely controlled. The independent, motor-powered drive of the traversing gear also reduces the load on the winding cylinder drive.
The rotation speed of the winding cylinder shaft is picked up by an initiator. The necessary rotation speed for the motor is calculated by the controller and transmitted to the inverter. The rotation speed of the motor is then checked at the output and regulated. Thus processed, these measured signals permit very accurate regulation and thus faultless anti-patterning. The anti-patterning intensity can be varied very easily by means of two selectable modes at the controller. These two adjustment options depend on the delivery speed and the yarn properties (pronounced snarling tendency, high elongation or other unusual properties).
The winding helix is still adjusted by means of the change gears.
- Easy adjustment of anti-patterning via digital input
- An electronic random-check generator guarantees optimal anti-patterning
- A frequency-controlled motor determines the rotation speed of the traverse motion gear
- The independent motor-powered drive of the traverse motion gear reduces the load on the winding roller drive
- The wear-susceptible regulation disk plus belt is completely eliminated