PRESSING UNIT OF AUTOMATIC PRESS MACHINE (APM) Russian patent published in 2014 - IPC C03B11/12 

FIELD: machine building.

SUBSTANCE: APM pressing unit comprises interconnected punch and stem with a longitudinal channel where a pipeline with a sealing element at rear end is installed with a gap, the front end of the pipeline is fitted with a hollow tail piece of a hollow disk placed in the punch cavity with a gap with the tail piece being connected to the stem as well. A longitudinal channel and cross ports looking at the stem bottom are provided in the walls of the rear and front connection parts of the stem, and the second sealing element is located at the connection part of the stem. The cross ports in its front part are made as an annular gap formed by the surfaces of the punch, front end face of the stem, tail piece and rear end face of the disk and the stem open to the longitudinal channel through the longitudinal grooves of the joint "stem - disk tail piece".

EFFECT: higher reliability and better manufacturability of the pressing unit.

1 dwg