US 5,308,234 A · Gripping device for two part molds

Abstract

A gripping device for two part molds wherein each mold half is equipped with a centering ring that has outwardly projecting radial wedges, said gripping device including a gripping plate having a center bore which is adapted to fit over and around said centering ring and its outwardly projecting radial wedges, and a flat U-shaped recess extending inwardly from one side of said gripping plate and surrounding said center bore, and a gripping ring which is adapted to fit into said flat U-shaped recess, said gripping ring having inwardly projecting counter wedges which are sized and spaced apart so that they can engage the spaces between said outwardly projecting radial wedges of a centering ring in the manner of self-locking bayonet fixing means, and handle means to rotate said gripping ring while in said recess through at least a limited art with respect to the axis of said center bore.

Claims15

Dependent claims

An injection molding machine having two opposed mold halves, operating means for opening and closing said mold halves, each mold half being equipped with a centering ring having outwardly projecting radial wedges, a pair of machine base plates, each base plate having a gripping plate mounted thereon, each gripping plate having a center bore whereby each centering ring is located in one of said center bores, each of said centering rings being lockable by projecting radial counter wedges of a gripping ring matching said projecting radial wedges, wherein each gripping plate has a rear side thereof, a flat U-shaped recess dimensioned to accommodate the thickness as well as the outer circumference of the gripping ring, each flat U-shaped recess further encompassing a corresponding one of said center bores with a shoulder and having lead-in bevels.

Dependencies are inferred from the claim text.

Gripping device for two part molds

Life of this patent

Gripping device for two part molds

Life of this patent

Abstract

Claims15