Patent ID: 7883330

Claim:
A powder compression molding machine comprising: a machine main body having a compression molding zone and two compact discharge zones formed on both sides of the compression molding zone; a slide plate provided in the machine main body so as to be slidable horizontally; a first molding die section provided in the slide plate so as to include a plurality of arrayed through-die holes; a second molding die section including a plurality of through-die holes arrayed in the same manner as the first molding die section and juxtaposed to the first molding die section in the slide direction on the slide plate; an upper punch body having a plurality of upper punches arrayed to correspond to the through-die holes and disposed above the slide plate so as to be movable upward and downward in the compression molding zone; two compact discharger each having a plurality of discharge pins disposed to correspond to the through-die holes and disposed above the slide plate so as to be movable upward and downward in the two compact discharge zones; a lower punch body having a plurality of lower punches arrayed to face the upper punches and disposed below the slide plate so as to be movable upward and downward; a powder supply mechanism section for pouring molding powder in the through-die holes of the slide plate in the compression molding zone; and compact collection mechanism sections disposed below the slide plate in the respective two compact discharge zones, wherein the slide plate is slid to one of slide limits in which the first molding die section is located at the compression molding zone and the second molding die section is located at one of the compact discharge zones, and to the other of the slide limits in which the second molding die section is located at the compression molding zone and the first molding die section is located at the other of the compact discharge zones, in the compression molding zone the lower punches of the lower punch body enter the through-hole die holes of the first or second molding die section to form the bottom walls of the through-die holes, molding powder is poured into the through-die holes by the powder supply mechanism section, and the upper punches of the upper punch body enter the through-die holes, the molding powder is compressively molded by and between the upper punches and the lower punches, in the one compact discharge zone the discharge pins of the compact discharger enter the through-die holes of the second molding die section to press out downwardly the compacts from the through-die holes, the compacts being collected by the compact collection mechanism section, and in the other compact discharge zone the discharge pins of the compact discharger enter the through-die holes of the first molding die section to press out downwardly the compacts from the through-die holes, the compacts being collected by the compact collection mechanism section.