Aisapack Holding Sa

Aisa Automation Industrielle Sa

Jean-Pierre Voigtmann

Gerhard Keller

Didier Ferrin

Christophe Stahl

Jean-Claude Schwager

Mathieu Benoit

The invention relates to a process for manufacturing plastic packaging in tubular form, which process comprises a wrapping step during which a laminate () is wrapped, an abutting step during which the edges () of the laminate () are butted together and a fastening step during which said edges () of the laminate () are welded together, characterized in that a bead () of plastic in the molten state is extruded and deposited on the internal face of the packaging so as to cover at least the weld zone () defined between the edges. The energy needed to produce the weld () comes from the plastic bead (). The invention also relates to packaging obtained from the aforementioned process and to a device for implementing said process.

Process and device for the internal welding of plastic tubes

Process for the internal welding of plastic tubes

Installation for assembling tube components, particularly bodies () with shoulders, comprising the following elements arranged in succession: a linear body conveyor (), a transfer system () designed to apply a change in orientation to the bodies () of about 90&#xb0;, an assembly unit () for fixing the shoulders to the bodies (), characterized in that the transfer system () consists of a device () for gripping the bodies and of a device () for changing the orientation of the bodies, the orientation-change device comprising a rotary conveyor (), of the conveyor belt type, which is arranged at right angles to the direction of the linear conveyor (), the said rotary conveyor () comprising a belt () rotating about a direction that makes an angle of about 45&#xb0; with the direction of the linear conveyor (), the belt () comprising elements () for grasping the bodies, the shape of which is designed so that the bodies () are initially grasped on one of the sides of the rotary conveyor (), in a direction parallel to that of the linear conveyor (), and that they undergo a change in orientation by 90&#xb0; when they pass to the other side of the rotary conveyor ().

Installation for assembling tube components

The invention relates to a method for producing a two-chamber tube with a dividing wall ( ) that extends into the tube head. This method comprises the following steps: a) inserting a dividing wall ( ) into the gap ( ) of an auxiliary mandrel ( ); b) sliding a prefabricated tube pipe body ( ) onto said auxiliary mandrel ( ), which has been fitted with the dividing wall ( ); c) axially transferring the blank ( ) produced in step b) from the auxiliary mandrel ( ) onto a pressing mandrel ( ); d) adding a molten portion of a plastic material in a female mold ( ); e) conveying the pressing mandrel ( ) with the blank ( ) into the female mold ( ) with the portion of a plastic material in an axial position, in order to mold a tube head onto the blank ( ); f) pressing the material portion between the pressing mandrel ) and the female mold ( ) in order to form a tube head, at the same time producing a solid connection with the pipe body ( ) and with the section of the dividing wall ( ) that is located in the area of the tube head by closing the mold; g) opening the mold, removing the pressing mandrel ( ) and withdrawing the finished two-chamber tube. The invention also relates to a device for carrying out the method.

Method and device for producing a two-chamber tube

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Martigny, Switzerland

Jean-Pierre Voigtmann