Winding Calculator By Sew - Eurodrive India Pvt. Ltd.

we are the popular distributor and supplier of Winding Calculator in Mumbai, Maharashtra, India. Winding calculators are used when endless material is unwound for further processing or rewound after processing. This may be necessary e.g. in the paper, plastics, textile or sheet metal industries. It is very important that the speed of the material transport remains constant. The speed of the material roll is changed in inverse proportion to its radius. To prevent the material from tearing, it is wound smoothly and the tension must be kept constant. The following description of the drive solution is based on two unwinders.

Endless, e.g. in a paper machine. The roll is unwound without interruption at a constant circumferential velocity. The radius is calculated by the IPOSplus program in MOVIDRIVE. The speeds n1 and n2 and the diameter d0 of the pull-off roller are known.
Clocked, for example in a trimmer. The unwinder has to start and stop cyclically. Clocked further processing requires special precautions to ensure jerk-free material transport. One precautionary measure is to guide the material over a jockey roll, which acts as a buffer to compensate for the tensile force fluctuations and load shocks of clocked operation.