Press machine with an adjustable shut height

A press machine, comprising a stationary frame member, a bolster which is fixedly mounted on the stationary frame member and on which a plurality of press dies are fixedly secured, and a movable frame member arranged reciprocably with respect to the stationary frame member and having a predetermined constant stroke, said movable frame member carrying a plurality of pressure plates cooperating with the press dies, respectively, each pressure plate being supported by the movable frame member to be movable in a first direction relative thereto and being threadedly connected with a spacer plate disposed between a surface of the movable frame member and a surface of the pressure plate opposite to said surface of the movable frame member, whereby the spacer plate is rotatable relative to the pressure plate to provide a desired shut height, each pressure plate being supported by the movable frame member through a cylinder-piston device having a piston rod movable between a first position in which the spacer plate is in engagement with said surface of the movable frame member and a second position in which the spacer plate is disengaged from said surface of the movable frame member to enable adjustment of the shut height.

A press machine, comprising a stationary frame member, a bolster which is fixedly mounted on the stationary frame member and on which a plurality of press dies are fixedly secured, and a movable frame member arranged reciprocably with respect to the stationary frame member and having a predetermined constant stroke, said movable frame member carrying a plurality of pressure plates cooperating with the press dies, respectively, each pressure plate being supported by the movable frame member to be movable in a first direction relative thereto and being threadedly connected with a spacer plate disposed between a surface of the movable frame member and a surface of the pressure plate opposite to said surface of the movable frame member, whereby the spacer plate is rotatable relative to the pressure plate to provide a desired shut height, each pressure plate being supported by the movable frame member through a spring which urges the spacer plate against said surface of the movable frame member.

A press machine, comprising a stationary frame member, a bolster which is fixedly mounted on the stationary frame member and on which a plurality of press dies are fixedly secured, and a movable frame member arranged reciprocably with respect to the stationary frame member and having a predetermined constant stroke, said movable frame member carrying a plurality of pressure plates cooperating with the press dies respectively, each pressure plate being supported by the movable frame member to be movable in a first direction relative thereto and being threadedly connected with a spacer plate disposed between a surface of the movable frame member and a surface of the pressure plate opposite to said surface of the movable frame member, whereby the spacer plate is rotatable relative to the pressure plate to provide a desired shut height, and wherein each pressure plate is supported by the movable frame member through a supporting rod having an end threadedly connected with the pressure plate and another end threadedly connected with an operating handle for causing the supporting rod to be displaced vertically with respect to the movable frame member by operating the handle.

A press machine, comprising a stationary frame member, a bolster which is fixedly mounted on the stationary frame member and on which a plurality of press dies are fixedly secured, a movable member arranged reciprocably with respect to the stationary frame member and having a predetermined constant stroke, and a supporting means carrying a plurality of pressure plates for cooperating with the press dies, respectively, and being detachably secured to the movable member, each pressure plate being supported by the movable member to be movable in a first direction relative thereto, and a spacer plate threadedly connected with the pressure plate and arranged between a surface of the supporting means and a surface of the pressure plate which is opposite to said surface of the support means, whereby the spacer plate is rotatable relative to the pressure plate to provide a desired shut height, the pressure plate being supported by the supporting means through a supporting rod having an end threadedly connected with the pressure plate.

A press machine, comprising a stationary frame member, a bolster which is fixedly mounted on the stationary frame member and on which a plurality of press dies are fixedly secured, a movable member arranged reciprocably with respect to the stationary frame member and having a predetermined constant stroke, and a supporting means carrying a plurality of pressure plates for cooperating with the press dies, respectively, and being detachably secured to the movable member, each pressure plate being supported by the movable member to be movable in a first direction relative thereto, and a spacer plate threadedly connected with the pressure plate and arranged between a surface of the supporting means and a surface of the pressure plate which is opposite to said surface of the support means, whereby the spacer plate is rotatable relative to the pressure plate to provide a desired shut height, the pressure plate being supported by the supporting means through a spring, and fits with an end of a rod having a square cross-section which is supported by the supporting means.