| 摘要 |
It is an object of the invention to provide a new and improved apparatus for successively making plastic bags of plastic film, so as to remarkably speed up the apparatus, accurately cut the layers of plastic film 1 to precisely make plastic bags, and cope with a change in size of plastic ba g without difficulty. According to the Invention, the layers of plastic film are fed intermittently along an upstream path for a length which is N times as much as the size of plastic bag and at a cycle number. The layers of plastic film are heat sealed whenever being fed intermittently to obtain N times in number of plastic bags. In addition, the layers of plastic film 1 are fed intermittent ly along a downstream feeding path for a length corresponding to the size of plastic bag and at a cycle number which is N times as many as the cycle number of the upstream feeding means, after being heat sealed. The layers of plastic film are then cut by the cutter 10 whenever being fed intermittently. |
