Aida Engineering Co., Ltd.

Ito Takao

Hisanobu Kanamaru

Hiromichi Fujimori

Nishimura Tadashi

A press system for knocking out a work from a lower die attached to a press machine has a cammounted on a bed of the press machine; a servo motorwhich drives the cam to be rotated with the same cycle time as that of a drive mechanism of a slide of the press machine; a knockout pinmoved with reciprocal linear motion by the rotation of the cam; a detectorconfigured to detect a present angle informationof the cam, a memory storing a target angle information of the cam, and a controllerconfigured to control the servo motor in accordance with the present angle information and the target angle information. The controller is further configured to change a basic motion of the knockout pin according to contour of the cam to a target motion obtained from the target angle information.

Press system

A simple structure is provided for the frame by changing the orientation of the crank mechanism so as to orient the crankshaft longitudinally. More specifically, the structure includes two ring-shaped main plates are provided in the front and back and are connected by means of connector plates. An upwardly and downwardly movable slide for the machine press is provided in a space demarcated by four column portions of the ring-shaped main plates and a bolster is provided atop a bed of the ring-shaped main plates. A crankshaft oriented longitudinally is provided at the crown portion of the ring-shaped main plates, and the slide is moved upward and downward by a drive mechanism that includes the crankshaft.

Machine press

A slider link press includes an oscillation link operating about a fulcrum shaft and an eccentric crank pin. A connecting link connects the oscillation link to a slide. The oscillating link and fulcrum shaft act to increase press torque, reduce downward press speed, and increases upward press speed thereby maintaining cycle time. The eccentric crank pin operates the oscillation link, aids in torque increase, and provides reciprocating movement to the slide. The slide includes pivotable slide gibs that engage reciprocal fixed gibs to maintain parallel surface contact and absorb and eliminate eccentric loads on the slide and the press. Stays and spacers align sides of the press and eliminate flexing under load while absorbing and distributing deformation pressure.

Growing community of inventors

Sagamihara, Japan

Ito Takao