US 11,198,257 B2 · Flap-bag manufacture

Abstract

The invention relates to a method for producing and depositing a bag, in particular a flap bag (1), wherein the bag has a base, a filling opening and, in a pocket region (3), two layers, and the two layers are welded together at least in the region of a side seam (6) of the bag, wherein the bag is then moved by means of at least one transport arm (9) to a depositing device and during the movement is held on the transport arm (9) by means of negative pressure, characterised in that the at least one transport arm (9) is oriented parallel to the side seam (6) of the bag, and after welding of the two layers, as a result of which the side seam (6) is formed, the side region of the bag is placed on the transport arm (9) and during movement to the depositing device and up until depositing, the bag is held on the transport arm (9) by means of negative pressure.

Claims3

Dependent claims

A method of making a bag, the method comprising the steps of sequentially:

thermally plasticizing and welding together two layers to form the bag with two welded and parallel side edges;
adhering by negative pressure each of the two welded side edges while still plasticized with a respective transport arm with each side edge oriented parallel to the respective transport arm;
jointly displacing the transport arms and layers adhered thereto at the side edges so as to transport the bag along a path while curing the plasticized side edges;
and
after curing of the plasticized side edges, releasing the bag from the respective arms and thereby depositing the bag.

2 more elements

Dependencies are inferred from the claim text.

Flap-bag manufacture

Life of this patent

Flap-bag manufacture

Life of this patent

Abstract

Claims3