CONCRETE MOULD SYSTEM HAVING PRESS PLATES AND FOOT PORTIONS WHICH REDUCES MOULD WEAR

摘要

In connection with casting concrete blocks for e.g. pavements etc., there is used a casting equipment including a bottom part (4) with casting cells (26) corresponding to the shape of the concrete blocks and a top part (2) with thrust plates (12) projecting downwards on rods (8) and substantially corresponding to the shape of the casting cells, and so that the thrust plates (12) by stripping the items by vertical displacement of the bottom part (4) are passed down through the casting cells (26). By the invention is provided a top part (2) which includes means in the form of rods that have the same shape as the thrust plate (12), thus preventing the concrete from falling down upon the thrust plate neither during the compression nor during the stripping operation, or in the form of thickened thrust plates or thicker bolt plates (14) ensuring that the top side of the thrust plates (26) or bolt plates (10) remain at a certain height above the top edge of the cells (26) during the entire compression stage, thus preventing the concrete residue, which is inevitably spilled on the mould table during the filling, cannot jump up upon the top side of the thrust plates (12) during the vibration. Hereby is avoided that these concrete remains accumulate and become a compact mass which during the stripping acts as grinding stone on the sides of the cell walls; this contributes to reduce the wear in the cells and the mould is thereby imparted a longer service life. Furthermore, the device has the advantage of considerabl reducin the cleanin of the casting equipment.