This paper deals with the basic structure and the design basis of the die, which is applied to the machines made at home and abroad.

It analyzes the basic structure of the double-deck injection mould, describes how to design the temperature control system and mechanism for mould opening. The paper shows an example.

The general problems on press automation are analysed in this paper, including die structure, loading and unloading of workpiece, blank destacking, workpiece stacking and safety.