Machine and process for obtaining a large tube made of flexible plastics material folded bellows.

摘要

The present invention consists of a machine and the process which develops said machine for mechanized production of a tube (2) large flexible plastic material folded in the form of bellows, of those used in the storage walk field of agricultural products, said machine consisting of a multiplicity of folding devices (1) being, depending on the number of such devices the width of the mouth of the tube to be folded, each device consisting of a fixing support (5) reeving initial plastic film tube (2), a lower blade (14) and upper (13) capable of vertical and horizontal movements and a back support (6) of the folding, and means for controlling the operation of the entire machine .