Patent ID: 6813871
Filing Date: 2004-11-09
Classification: B65B

Abstract:
A former for a packaging machine for manufacturing three-sided sealed pouches from packaging foil material, which comprises a back wall extending from an upper foil material supply edge to a dispensing opening; a pair of shawl-like front walls having interior surfaces and outer guide surfaces for the foil material, the front walls having form edges extending from the upper foil material supply edge in a direction of foil material supply from the upper foil material supply edge to a slit extending in said direction to the dispensing opening, the form edges converging in said direction toward the slit to form a wedge-shaped section; curved side walls connecting the back wall and the front walls; a channel open on top and bottom, the channel extending between the back wall, the side walls and the front walls from the upper foil material supply edge to the dispensing opening; and form- and filling pipes arranged in the channel; wherein the improvement comprises that the back wall and the interior surfaces of the front walls are formed asymptotically steadily closer in said direction from the foil material supply edge to a lower end of the slit.