KWS

he KWS is used for winding cores with heavy wire (up to 4 mm). The wire is guided through the core centre opening without tools, which has the advantage that cores can be wound even with small (min. 2x wire thickness) residual hole diameters.

The machine is largely maintenance-free thanks to the use of proven design elements.

Parts at risk of corrosion are galvanised. All drives have sufficient reserves to achieve the longest possible service life even under difficult operating conditions.

With the KWS, the wire is fed through the core centre opening without tools. This utilises the stability of the wire. A pneumatic gripper clamps the wire with a protrusion of 10 – 15 cm and guides it linearly through the remaining hole. Another gripper grips the wire on the other side of the core and pulls it to the end position (this is determined by the length of the wire). Once there, a swivelling cylinder pulls the wire through 180° over a wire guide roller consisting of two guide halves that can be moved against each other. After this step, the thick wire is gripped by a 3rd gripper. The guide rollers move apart and the wire is guided back to the core holder, where it is transferred again and handled in the same way as before.

The core is inserted and clamped manually using a clamping mechanism.

The core is clamped in a chuck, which is mounted so that it can rotate axially to the wire drawing direction. The core is driven by a chain and a servomotor, which enables precise control of the feed rate. A pneumatic gripper is attached to each of the core clamping jaws to prevent the wire from slipping when the first turns are wound on.