BigPatents India

A punching machine molded depth indicator to provide precise calibration and setup of the punching stroke by displaying numeric molded depth of a punching cylinder that drives the upper mold is essentially comprised of a base enclosed in a casing and containing multiple numeric gear sets to accumulate the stroke counting; a spiral gear meshed with a another spiral gear of a transmission rod being disposed to one end of a central axial rod of the numeric gear set; the transmission rod being lined to a drive worm gear and gear of the punching cylinder of the punching machine; the transmission rod being linked to the elevation of the punching cylinder thus to synchronously transmit the central axial rod of the numeric gear set; an axial bolt being provided on one side of the numeric gear set; multiple rolling sprokets being arranged in series through the axial bolt; and a dialing plate disposed on one side of each numeric gear dialing the next rolling sprocket in sequence and in decimal pattern for the next numeric gear to turn to carry a number to display the molded depth depending on the elevation stroke of the punching cylinder in the calibration after changed dies; both of the upper and lower limits of the stroke of the punching cylinder being readjusted t protect parts and dies of the console from being improper punching.