Apparatus for hydraulic pressing of metals

Claim 1

An apparatus for hydraulic pressing of metals, comprising a container; a vertical chamber provided in said container for being filled with hydraulic fluid; a horizontal chamber in said container communicating with said vertical chamber and having inlet and outlet holes axially aligned relative to each other; a plunger slidably arranged in said vertical chamber; lock means for repeatedly closing the inlet hole in said horizontal chamber; loader means for loading workpiece blanks into said horizontal chamber and located adjacent the inlet hole thereof; a die installed in the outlet hole of said horizontal chamber; a receiver means for receiving finished articles from said die, said receiver means being located adjacent the outlet hole in said horizontal chamber and comprising a framework consisting of two mutually parallel horizontal tubes and arms interconnecting the tubes at the ends thereof; a shaft rigidly connected to the arms of said framework and serving as an axis of symmetry of said framework; drive means for said shaft for turning framework in a vertical plane for successive axial alignment of each tube with the outlet hole in said horizontal chamber for discharge of a finished article into said tube during the pressing process, a ring installed in the outlet hole in the horizontal chamber at a location downstream of the die, said ring having a hole with a shape corresponding to that of the finished article for effecting additional shaping of the article and for sealing the outlet hole between the die and the end face of the tube which receives the finished article, a source of hydraulic pressure connected to said receiver means to produce a back pressure during the pressing process, said source communicating with the internal space of the respective tube, said receiver means further comprising an actuating cylinder axially aligned with the horizontal chamber of the container and including a rod with a cover at the end of said rod for sealing the internal space of the tube and for pressing the tube against said ring around said hole therein to effect the sealing between said tube and ring.

Claim 2

An apparatus for hydraulic pressing of metals, comprising a container; a vertical chamber provided in said container for being filled with hydraulic fluid; a horizontal chamber in said container communicating with said vertical chamber and having inlet and outlet holes axially aligned relative to each other; a plunger slidably arranged in said vertical chamber; lock means for repeatedly closing the inlet hole in said horizontal chamber; loader means for loading workpiece blanks into said horizontal chamber and located adjacent the inlet hole thereof; a die installed in the outlet hole of said horizontal chamber; a receiver means for receiving finished articles from said die, said receiver means being located adjacent the outlet hole in said horizontal chamber and comprising a framework consisting of two mutually parallel horizontal tubes and arms interconnecting the tubes at the ends thereof; a shaft rigidly connected to the arms of said framework and serving as an axis of symmetry of said framework; drive means for said shaft for turning framework in a vertical plane for successive axial alignment of each tube with the outlet hole in said horizontal chamber for discharge of a finished article into said tube during the pressing process, a ring installed in the outlet hole in the horizontal chamber at a location downstream of the die, said ring having a hole with a shape corresponding to that of the finished article for effecting additional shaping of the article and for sealing the outlet hole between the die and the end face of the tube which receives the finished article, a source of hydraulic pressure connected to said receiver means to produce a back pressure during the pressing process, said source communicating with the internal space of the respective tube, said receiver means further comprising an actuating cylinder axially aligned with the horizontal chamber of the container and including a rod with a cover at the end of said rod for sealing the internal space of the tube and for pressing the tube against said ring around said hole therein to effect the sealing between said tube and ring.