| 摘要 |
The present invention consists of a machine and the process which said machine carries out, for mechanically obtaining a large tube (2) made of flexible plastics material folded in the form of bellows, as used in the in-field storage of agricultural products, said machine consisting of a multiplicity of folding devices (1), the number of said devices depending on the width of the mouth of the tube which is to be doubled, each device consisting of a fixing support (5) for initial threading of the plastic film tube (2), lower (14) and upper (13) - blades capable of moving vertically and horizontally and a back support (6) for the fold, and with means for controlling operation of the entire machine. |
