Apparatus for forming adhesive cartridges

B - Operations – Transporting – 29 – C

Patent

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Details

B29C 47/90 (2006.01) B29C 47/06 (2006.01) B29C 47/68 (2006.01)

Patent

CA 2362456

An apparatus for continuously forming thermoplastic adhesive cartridges. A molten thermoplastic adhesive supply provides a supply of molten adhesive to a pump (12) downstream from the molten thermoplastic adhesive supply. The pump (12) then provides a molten thermoplastic adhesive melt stream which passes through a screen filter (20) downstream from the pump (12) to prevent the discharge of impurities in the molten thermoplastic adhesive melt stream from the pump (12). A temperature-controlled conduit downstream from the pump (12) then lowers the temperature of the molten plastic melt stream to closely above its softening point. A continuous molder (14) located downstream from the melt pump (12) receives the molten plastic melt stream from the melt pump (12) to form the thermoplastic adhesive cartridge continuously.

La présente invention concerne un appareil permettant de fabriquer en continu des cartouches d'adhésif thermoplastique. Une alimentation d'adhésif thermoplastique fluide fournit de l'adhésif fluide à une pompe (12) située en aval de cette alimentation. Puis cette pompe (12) fournit un flux fondu d'adhésif thermoplastique fluide qui passe au travers d'un filtre (20) à rideau situé en aval de la pompe (12) afin d'empêcher le dépôt d'impuretés dans ce flux fondu. Puis un conduit à température commandée situé en aval de la pompe (12) abaisse la température du flux fondu de plastique fluide juste au dessus de son point d'amollissement. Un mouleur (14) continu est situé en aval de la pompe (12) à fluide afin de recevoir le flux fondu de plastique fluide en provenance de la pompe (12) à fluide de façon à former en continu la cartouche d'adhésif thermoplastique.

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