Schneideinrichtung für Bahn- bzw. Lagen-Materialien oder dgl.

摘要

A cutting mechanism for slitting superimposed layers of paper webs, with the cutting roller provided as the lower knife or blade shaft, is replaceable in a few minutes by means of a fast assembly device. For this purpose a rapid assembly coupling is associated with each of the journal-free ends of the cutting roller, of which one simultaneously serves as a drive coupling for drive connection with an operating drive. Each coupling has a coupling member, formed by a cone pulley which is mounted in rotary and axially displaceable manner with respect to a base and a fixed coupling member located on the cutting roller, which is constructed as a complementary inner core. For transferring the cutting roller between its fitted position and a removal position, roll or sliding rails are provided, which slightly raise the cutting roller on engaging couplings and therefore make it contact-free. The rails have positioning aids, so that in each case one cutting roller can in simple manner assume its intended position with respect to the base.