Punzonaje mechanism in central zones. (Machine-translation by Google Translate, not legally binding)

摘要

"PUNCHING MECHANISM IN CENTRAL ZONES", characterized by a substantially tubular upper support whose upper plane is enlarged to constitute the means of attachment to the mobile head of the operating machine, which support has a finely machined inner housing presenting three successive steps of diameter, the greater one above and the lower one below, being in this last one more inferior where the body of a sleeve is lodged that presents in its upper part a salient balloon that sits on the step in the average diameter, limiting its downward movements, and projecting from the lower plane of the support the end of said sleeve for simultaneous operation of press-plates and punch stripper, the lower cutting part of which is housed inside it while, on said top ballrest, a package of spring washers sits, part of which opposite pushes against a punch-holder ring and whose assembly results co In the central diameter staggering of the interior of the repeated support, while the punch holder is already located in the upper diameter step and retained therein by means of an expansion ring that is inserted partly in a circular groove belonging to the said support which, in the free space that is above the punch holder, is housed a striking plate in whose upper plane (which coincides with that of the support), there is a cylindrical projection intended to facilitate assembly on the operating machine of in question. (Machine-translation by Google Translate, not legally binding)