Injection moulding distributor for mouldings with foam core - has slide valve to make connections between plasticiser storage cylinder and mould (AT 15.8.81)

摘要

A distributor for the injection moulding of components having a firm, dense skin and a foam core is intended to be incorporated between a plasticiser unit, a mould and a storage cylinder. The control valve or element for the distributor is a two-posn. plunger contg. a U-section duct; and the two ends of the arms of this duct can be connected simultaneously to the plasticiser and to the storage cylinder; the opposite side of the duct can be connected to the mould. A non-return valve is fitted in the duct connecting the plunger, and the connection between the plasticiser and the storage cylinder is provided by the U-shaped duct.