Rotary preforming machine for uppers.

摘要

The invention relates to a rotary preforming machine particularly suitable for the shaping of uppers before the operation of injecting the soles. The machine comprises a stepwise rotary carousel (4) on which a series of openable upper-holder lasts (6) is perimetrally fixed. Each last (6) has a series of holes (10) connected to a water vapor generator by means of tubes. The rotating carousel (4) cooperates with at least two consecutive fixed workstations (12), each comprising a movable carriage (16) guided so as to slide around the upper-holder last (6) which is located thereat by the movement of the carousel (4). Elements (23,24) for beating uppers fitted on the lasts (6) are coupled to the movable carriage (16).