Tandem injection molding machine with direct feed to molds
AssigneeHusky Injection Molding Systems Ltd.
InventorsStefan von Buren, Anthony S. Paulovic
Life of this patent
Estimating the term…
Abstract
An injection molding machine wherein a molding compound supply unit having a nozzle is moveable relative to a plurality of mold stations. Clamps are provided as an adjunct to the supply unit or as an adjunct to the mold stations for effecting a compound seal at each mold station. Appropriate power sources are provided for accomplishing the seal.
Claims15
In an injection molding machine having a series of tandemly arranged molding stations wherein each molding station includes a mold having a parting line and a mold inlet,
- said mold inlet defining a lateral extension of said mold,
- said parting line extending into said mold inlet,
- the improvement comprising:
- moveable supply means for introducing moldable material into each said mold,
- nozzle means carried by said supply means said nozzle means cooperating with each said mold inlet,
- power means for moving said supply means operable to register said nozzle means with each said mold inlet,
- nozzle clamp means moveable along each said parting line for sealing the nozzle means to a mating mold inlet, and
- primary clamp means for sealing said parting line and said parting line extension along a first axis.
In an injection molding machine having a series of tandemly arranged molding stations wherein each molding station includes a mold, a mold inlet and a hot runner, the improvement comprising:
- a single platen common to a pair of adjacent mold stations,
- a first hot runner communicating with a first mold inlet said first mold inlet disposed on one side of said platen,
- a second hot runner communicating with a second mold inlet said second mold inlet disposed on an opposite side of said platen,
- moveable supply means for introducing moldable material into each hot runner,
- a nozzle carried by said supply means said nozzle being operable to connect with each hot runner, and
- first and second nozzle clamps supported by said single platen, said first and second clamps being associated with a corresponding molding station for sealing said nozzle to said first and second hot runners selectively whereby moldable material is supplied to each mold inlet individually via respective hot runners.
Dependencies are inferred from the claim text.