| 摘要 |
The invention relates to a device making it possible to weld the bottom of a plastic bag in a cycle which is different from that during which its length has been obtained. It consists of two drive rollers operating in stop-start mode which give the length of the bag, of a cutting device, of a taking arm transferring the edge of the bag towards a conveying line which positions the edge of the bag opposite the following work stations: welding jaws, cooling, deposition of the bag on the stack and shaping as required. |
