Multi-chamber mold for machine-made concrete blanks

摘要

The bottom part of the mould has a frame (6) on which is at least one slide-piece (4) horizontally sliding on it. The slide-piece is in the form of a mask with windows (5) with edge parts (14) moulding the underside of over-gripping parts. The top part of the frame has several groups of punches. The punches belonging to different groups are mounted so as to move vertically in relation to each other.