Abstract: A punch of a compression molding machine is configured to be assembled with no use of any tool and achieves reduction in time necessary for the assembling process. The punch includes a punch tip member, a holder provided, at a distal end thereof, with a projection projecting radially outward, a cap having a disengagement inhibiting portion engaged with the projection of the holder so as to inhibit the projection from inserted thereinto and extracted therefrom in the axial direction, and a rotation inhibiting member engaged with the holder and the cap attached with the punch tip member so as to inhibit axial rotation of the cap relative to the holder.

Abstract: A punch of a compression molding machine is configured to be assembled with no use of any tool and achieves reduction in time necessary for the assembling process. The punch includes a punch tip member, a holder provided, at a distal end thereof, with a projection projecting radially outward, a cap having a disengagement inhibiting portion engaged with the projection of the holder so as to inhibit the projection from inserted thereinto and extracted therefrom in the axial direction, and a rotation inhibiting member engaged with the holder and the cap attached with the punch tip member so as to inhibit axial rotation of the cap relative to the holder.

Abstract: This invention provides a punch comprising: a center punch and an outer punch surrounding the outer periphery of the center punch, both of which being slidable and capable of compressing; and relative position restriction means for restricting a relative position of the center and outer punches, the relative position restriction means being configured to restrict a first position in which a punch tip of the center punch is protruded from a punch tip of the outer punch and a second position in which the punch tip of the center punch is substantially coincident with the punch tip of the outer punch, and being configured to fail to restrict a third position in which the punch tip of the center punch is retracted in the punch tip of the outer punch, as well as a rotary compression molding machine provided with the double-structured punch.

Abstract: This invention provides a punch comprising: a center punch and an outer punch surrounding the outer periphery of the center punch, both of which being slidable and capable of compressing; and relative position restriction means for restricting a relative position of the center and outer punches, the relative position restriction means being configured to restrict a first position in which a punch tip of the center punch is protruded from a punch tip of the outer punch and a second position in which the punch tip of the center punch is substantially coincident with the punch tip of the outer punch, and being configured to fail to restrict a third position in which the punch tip of the center punch is retracted in the punch tip of the outer punch, as well as a rotary compression molding machine provided with the double-structured punch.