Method and a press for compressing material having two opposed transfer elements exacting a greater pressing force on the material during a forward motion than the pressing force exerted during a return motion

摘要

A method and press for pressing material by way of feeding the material into a gap formed between two pressing surfaces, in which gap the cross section of the material flow is tapered in the forward transfer direction of the material. The material is pressed between pressing surfaces formed by parallel, beam-shaped transfer elements which are reciprocatingly moved in the direction of material flow in two alternating groups so that the mutually opposed transfer elements of both pressing surfaces are moved in a mutually synchronized manner in the same direction. During the forward transfer motion the pressing force exerted by the transfer elements on the material is greater than the pressing force exerted during the return motion of the transfer elements.