Matsui Mfg. Co., Ltd.

Satoru Tojyo

Hironobu Matsui

An open/close counting device to be attached to one of a first die and a second die which constitute a die, the die being opened by relatively moving the first die and the second die, the open/close counting device counting the number of open/close times of the die. The open/close counting device includes an open/close detecting section provided so as to face a target face of the other of the first die and the second die and to detect relative displacement of the target face along a die moving direction in non-contact condition, and includes an output section to output the open/close times counted based on detection of open/close by the open/close detecting section.

Open/close counting device

A display device to be attached to a die, the display device including a display to rewrite and display die management information obtained in an information acquisition section to obtain the die management information for managing the die. The display uses electric power when display content is rewritten, and the display uses no electric power for keeping the display.

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Osaka, Japan

Satoru Tojyo