APPARATUS AND METHOD FOR THE IN-LINE CROPPING AND/OR CHAMFERING OF A PLASTIC TUBE

摘要

Apparatus and method for the in-line cropping and/or chamfering of a plastic tube. Described is an apparatus for in-line cropping and/or chamfering of a plastic tube which comprises pressure rollers for deforming a tube section and cutting devices to perform the cropping and/or chamfering operation. The control of movement of the pressure rollers and cutting devices is carried out by a combination of a face cam and a rotor disc; said face cam and rotor disc have according to the invention the same diameter and may be given rotary-speeds which are related to each other in any desired way. Control is carried out preferably with use of an interference box. The invention also relates to a method for cropping and/or chamfering wherein the chip length can be regulated by intermittent operation of the cropping and/or chamfering action.