Apparatus for reforming a material web

摘要

The present invention relates to an apparatus for reforming of a web of flexible packaging material into tube form by rotatable forming rollers which define a material opening. The apparatus is at least one of the forming rollers is displaceable in relation to the material web when an opening device disposed on the material web passes through the material opening.

主权项

1. An apparatus for reforming of a material web of flexible packaging material into tube form by rotatable forming rollers which define a material opening, wherein said forming rollers are freely rotatably supported about shafts disposed in an annular bracket which is fixedly connected to a frame of a packaging and filling machine through an anchorage, and at least one of the forming rollers, which will lie in a movement path of an opening device disposed on the material web as the opening device passes through said material opening, is displaceable in relation to the material web, said opening device protruding from the material web and defining an openable closure, while others of the forming rollers, which will not lie in the movement path of the opening device as the opening device passes through the material opening, are not displaceable in relation to the material web.