Hennecke Gmbh

J&uuml;rgen Wirth

Hans-Michael Sulzbach

Wolfgang Pawlik

Plastic moldings reinforced with long fibers are made without the risk of forming loops in a continuous thread or roving fed to a cutting unit at the end of a mold filling operation or tearing thereof during renewed start-up for the next molding filling operation, even at a relatively high take-off speed of the continuous thread. This is achieved by keeping the continuous thread permanently under tension pneumatically against the conveying direction. The device useful for carrying out this process is equipped with at least one tensioning air inlet in the guide for the continuous thread or roving.

Device for the production of moldings of plastic reinforced with long fibers

A process and device are disclosed for manufacturing foam moldings. The parting plane of the mold has a circumferential vacuum channel, the top mold half has a suction channel for quickly evacuating the mold and self-closing expansion channels are arranged at the highest points of the inner cavity of the mold.

Growing community of inventors

Kö'ln, Germany

Jürgen Wirth

Growing community of inventors

Kö'ln, Germany

J&uuml;rgen Wirth

Jürgen Wirth