Towa Corporation

Fumio Takashima

Michio Osada

Kazuhiko Bandoh

Tsuyoshi Amakawa

Kouichi Kawamura

Yoshihiko Kojima

A method of processing a leadframe involves steps of transporting a leadframe to load it into a lead processing unit including plural sets of processing presses; adjusting a press pitch of the processing presses according to a work pitch of workpieces on the leadframe by rotating a nut member that is coupled to at least one of the processing presses and engaged on a non-rotating screw shaft extending in the transport direction of the leadframe, so that the nut member moves along the screw shaft and the respective processing press coupled thereto moves with the nut member; and performing a predetermined lead processing on the leadframe using the processing presses after the step of adjusting the press pitch.

Growing community of inventors

Kyoto, Japan

Fumio Takashima