Floating plane for press punches

DETAILED DESCRIPTION The invention, as defined in the appended claims, solves the above drawback by means of a floating plane for press punches, whereby the following results can be achieved: every press punch is fixed and supported by a wall made of elastic material, which is comprised in an intermediate partition in which there is a non-compressible operating fluid: the intermediate partition includes the above elastic wall, some elastic peripheral walls and a stiff wall opposite the first one, which may be an integral part and/or correspond to the basis of an isostatic support or base; every punch is connected with the corresponding isostatic base by means of several elastic water-tight and sliding means.
The advantages resulting from the present invention substantially reside in that the elastic supporting configuration of each punch, the intermediate partition containing the non-compressible operating fluid and the connection means between said punch and the corresponding isostatic base have a very simple structure, and can be easily produced at very low costs.
Another advantage resides in that each punch can be appropriately oriented with respect to the loading unevenness of the clays and/or powders to be pressed, oscillating on its whole surface and giving very small differences in thickness--just few tenths of a millimeter--to the finished ceramic products obtained by pressing and firing.
Furthermore, the tiles and/or the ceramic products obtained by pressing and firing have variations in thickness which range in quite reduced tolerance limits as well as a perfect density homogeneity in all their parts.