JP2007038291A5 - - Google Patents

Claims (6)

At the top of the punch guide with a punch body fitted with a punch blade at the lower end, the adjustment screw member threadedly engaged with the screw formed on the punch body is provided, and the punch body is attached upward. An upper mold device detachably provided with a stripper unit having a biasing means for biasing,
A retainer collar provided with a locking piece whose tip can be engaged and disengaged with a locking portion formed on the punch body between the punch guide and the stripper unit is rotated relative to the stripper unit. An upper mold device characterized in that it is movable and fixed.   2. The upper mold apparatus according to claim 1, wherein the punch body is detachable from the punch guide in a state where the stripper unit and the retainer collar are combined.   The upper mold apparatus according to claim 1 or 2, wherein the stripper unit includes a punch head which is the adjustment screw member, and a spring seat which is provided so as to be movable up and down relatively with respect to the punch head. An elastic member is elastically mounted between the punch head and the spring seat, the retainer collar is provided with the locking piece movably in the radial direction, and the retainer collar and the spring In order to integrate the seat, one of the spring seat or the retainer collar is provided with an engaging recess, and the other of the spring seat or the retainer collar is a locking piece that can be engaged with and detached from the engaging recess. An upper device characterized by comprising:   A retainer collar is detachably attached to the upper portion of the punch guide, and a punch body is fitted into the punch guide so as to be movable up and down, and a punch head screwed into the upper portion of the punch body is relatively positioned on the retainer collar. The spring seat is provided on the lower surface of the spring seat so that the spring seat and the punch head can be moved up and down without rotating relative to each other. A plurality of radial recesses are provided in the circumferential groove, and a lock piece that is engageable with the engagement recess and movable to the position of the circumferential groove is provided on a slider that is provided in the retainer collar so as to be movable in the radial direction. An upper mold device characterized by comprising:   A punch for use in an upper die apparatus, a punch body having a punch blade at the tip, a punch driver having a diameter smaller than the diameter of the punch body, a screw at the tip of the punch driver, And the punch characterized by providing the groove-shaped latching | locking part parallel to the axial center of the said punch driver in the base part vicinity of the said punch driver. At the top of the punch guide with a punch body fitted with a punch blade at the lower end, the adjustment screw member threadedly engaged with the screw formed on the punch body is provided, and the punch body is attached upward. An upper mold apparatus detachably provided with a stripper unit having a biasing means for biasing, wherein a retainer collar provided between the punch guide and the stripper unit is rotated relative to the stripper unit. An upper mold device characterized in that it is movable and fixed.