Abstract:
A method for making mould equipment for concrete casting machines of the kind typically used for making block bricks for pavement and wall construction. The mould equipment includes a lower part (2) constituted by a mould table (4) in which is provided at least one cell divided mould insert (6) with cells (8) that are open upwards as well as downwards, the cells (8) defining the desired basic shape of individual bricks, and a corresponding upper part (10) that includes a top rail (14) from a top plate (12) and projecting downwards pressing pistons (16) in the shape of legs (18) provided with foot plates (20), the undersides of which include lower thrust plates (22) interacting with respective underlying cells (8) in the lower part (2) and thereby are useful counter hold for the castings during vibration and for downward ejection of the castings from the cells (8). The individual parts comprised by the mould equipment are cast in at least one casting process. The invention also relates to a mould equipment.
Abstract:
A mold equipment for casting block bricks includes a lower part with casting cells corresponding to shapes of the blocks brick and upper part with foot plates projecting downward on carrier tubes with thrust plates mainly corresponding to the shape of the molding cells, the undersides having thrust plates. The mold equipment is made of cut-out, welded steel parts that eventually form main parts of the mold equipment by welding and bolting. ?A method for making a mold equipment has in its individual part, or more thereof, shaped as the upper part, or large single parts thereof, such as carrier tubes, pressing feet, thrust plates, and the mold lower part has a mold table and the mold insert, all of which are cast in at least one casting process. This avoids some work operations and material in the form of steel is saved.
Abstract:
In connection with casting concrete blocks for e.g. paving and erection of walls, a vibration equipment consisting of a vibration table with mounted rotating shafts for producing the vibration is used. Such vibration tables are normally made of cut-out, welded steel parts that after welding constitute the main part of the vibration table. These working processes imply that such vibration tables are costly as well as the waste of material is relatively great. There is indicated a method for solving the above problems by the vibration equipment being peculiar in that the individual parts for this vibration table (2) are cast in one piece or are welded and are finally fastened to each other by bolts or by welding. Hereby some work operations are avoided, and material in the form of steel is saved, simultaneously the vibration table may be designed so that force and stress flow in the vibration table is optimised.