Apparatus for the blowing of a two-compartment can

Abstract

Abstract An apparatus for the blowing of a two-compartment can of the type comprising two compartments, interconnected back-to-back in the area of their walls and facing one another in which there is at least one handle on the top side of the can and one radially inclined spout each on the top side of the compartments. Below an extruder extruding a single tube of hot thermoplastic material and laterally thereto there are provided two blow-mold sections adapted to be moved horizontally toward and away from one another and in closed condition to form the blow mold for the complete can. In each blow-mold section there is a separating wall with interior cooling, the wall corresponding in position and dimension to the slot between the compartments and being spaced in accordance with the thickness of the connecting strip between the compartments. In the plane of junction two inclined spindle sleeves extend in accordance with the bisected apertures for the spouts in the blow-mold sections. The upper portions of the spindle sleeves are, in their position of closest proximity, closer to one another than the inner diameter of the tube and are positioned directly under the lower edge of the tube. The spindle sleeves are adapted to be moved outwardly and upwardly, pulling the extruded tube along, without the thus oppositely placed inner sides of the tube touching one another. The lower edge then extends to a length corresponding to approximately half the circumference of the tube and the upper portions of the spindle sleeves are placed in position for the bisected holes for the spouts and the apparatus in fully closed position of the blowmold sections is then ready for blowing.

Inventors

• 👤 W Schiemann

Bibliographic Details