Abstract: Method and combined set comprising a device and a film material for manufacturing foam cushions, for packaging purposes in particular, a film feed station (2) comprising feeding a film material (9) to a foam feed station (3), the said film material having a first and a second sidewall (9-1, 9-2) which are each connected to a common first edge (16-1), the first and second sidewalls being arranged such that they demarcate an inner space which is accessible via an opening made in a second edge (16-2), the said foam feed station having first guiding devices (8) for guiding the second edge, the foam feed station also having a delivery device (12) to enter the said opening and inject a foaming substance into the inner space, a first welding device (5) which is equipped to make a seam weld in the film material, the film material being equipped with a series of characters (60) applied on the outside of each at a preset distance from one another, the method involving reading the said characters and generating a read p

Abstract: A device for manufacturing foam cushions in particular for packaging purposes, said device comprising a foil supply station and a foam dispensing station, said foil supply station being provided for supplying to said foam dispensing station a foil material, having a first and a second side wall joining each other at a common first border and positioned so as to delimit an inner space accessible by an opening applied in a second border, said foam dispensing station comprising first retaining means, provided for retaining said second border, said foam dispensing station further comprising a dispensing member, provided for penetrating through said opening and supplying a foaming substance into said inner space, said device further comprising transport means, provided for transporting said foil material through said dispensing station towards a welding station, said foam dispensing station further comprises slot shaping means mounted offset and downwards from said first retaining means in such a manner as to form

Abstract: A device for manufacturing foam cushions in particular for packaging purposes, said device comprising a foil supply station and a foam dispensing station, said foil supply station being provided for supplying to said foam dispensing station a foil material, having a first and a second side wall joining each other at a common first border and positioned so as to delimit an inner space accessible by an opening applied in a second border, said foam dispensing station comprising first retaining means, provided for retaining said second border, said foam dispensing station further comprising a dispensing member, provided for penetrating through said opening and supplying a foaming substance into said inner space, said device further comprising transport means, provided for transporting said foil material through said dispensing station towards a welding station, said foam dispensing station further comprises slot shaping means mounted offset and downwards from said first retaining means in such a manner as to form

Abstract: Shutting off a liquid supply line (2, 3) intended to convey foam precursors into a polyurethane foam mixing and dispensing gun, gives a better result when a system for shutting off and relieving the pressure is inserted in said supply line. This system enables to annul the pressure at the closed mouth of the gun by relieving the pressure in the supply line (2, 3).

Abstract: A device and a method for continuously manufacturing foam cushions for packaging purposes. The device comprising a supply station and a foam dispensing station, said supply station being provided for continuously supplying to the dispensing station a web of envelope forming material positioned in a face to face relationship so as to form a folded-over edge. The dispensing station comprising a dispensing member provided for supplying a foaming substance into said envelope forming material. The device further transporting said material through said dispensing station according to a substantially horizontal direction and comprises a guiding and clamping unit provided for guiding said edge along said direction and clamping said material over a predetermined stroke extending from said edge in a direction substantially perpendicular to said direction.

Abstract: Shutting off a liquid supply line (2, 3) intended to convey foam precursors into a polyurethane foam mixing and dispensing gun, gives a better result when a system for shutting off and relieving the pressure is inserted in said supply line. This system enables to annul the pressure at the closed mouth of the gun by relieving the pressure in the supply line (2, 3).