Method of controlling the movements of the squeeze plates of a string moulding apparatus

摘要

An apparatus for controlling the movements of the squeeze plates of a string moulding apparatus where the apparatus generally includes a moulding chamber defined between two squeeze plates. One of the squeeze plates can be pivoted to open the moulding chamber. The production cycle of the apparatus includes, apart from the charging of the chamber with mould material, several movements of the squeeze plates. A movement of one plate commences before the preceding movement of the other plate has finished. The hydraulic system of the apparatus comprises two pumps, one pump for each actuator associated to one of the squeeze plates.