Apparatus for injection molding articles carrying decorations punched from a band

Claim 1

Injection molding apparatus including means for the decoration of molded articles by applying thereto marked pieces of foil cut out of a foil band, comprising means defining a mold having a molding compartment therein, said means including a first mounting plate and a second mounting plate movably spaced from said first plate, a cutting male mold portion secured to one of said mounting plates, a further mold portion and a cooperating female mold portion positioned between said plates in movable contact with said cutting male mold portion, said cutting male mold portion and female mold portion which together form a punching tool means for punching out marked places of foil from such foil band, means for moving said cutting male mold portion and said cooperating female mold portion relative to each other so that said molding compartment can be open to receive such foil band between the cutting male mold portion and the female mold portion and can be closed to effect punching out of a marked piece of foil and the molding and decorating of an article, said cutting male mold portion including a front end which limits said molding compartment, supply means for intermittently feeding a foil band which is provided with a series of markings between said cutting male mold portion and the cooperating female mold portion, means for controlling the feed movement of such foil band and thereby achieving the exact position of a marking of such foil band in registry with said male and female mold portion, each of said male and female mold portions including shoulder means for receiving the transmitted closing pressure to said female mold portion during closing of said molding compartment and for supporting said foil during said punching, said female mold portion shoulder means having first and second major surfaces in substantially parallel relationshIp, one of said major surfaces facing away from said male mold portion, the other said major surface facing toward said male portion, said first surface interrupted by inwardly extending lateral walls defining a first cavity, said second surface interrupted by an inwardly extending stamping edge defining a second cavity smaller than said first cavity which communicates with said first cavity, said front end of said male mold portion being substantially the same size and shape as said female mold cutting edge but yet small enough to be received in said second cavity portion for cutting said foil.