Ryobi Limited

Toshio Yamashita

Takahiko Nakamura

Katsushi Hirokawa

An object is to simplify a drive control structure of a transfer device that is designed to stop running of a film when hologram forming or surface treatment is not performed, during which the film is not required to run, and restart the film running from the running stopped state. A speed control method for controlling film running speed of a transfer device includes starting the drive of the transfer device based on a pulse signal different from a pulse signal outputted according to the rotational number of the cylinder, when the transfer film held in running stopped state is moved from the first film running path to the second film running path to run in a docking or interlocking engagement with the cylinder held in rotating state, and performing speed matching control to match the film running speed of the transfer device to the rotational speed of the cylinder; and switching a control mode from the speed matching control into synchronization control that synchronizes the rotational speed of the cylinder with the film running speed of the transfer device based on the pulse signal from the cylinder, after the matching of the speeds.

Speed control method and speed control apparatus for transfer device

There is provided a method of winding up a transfer film and a device for performing transfer printing on printed sheets of paper, capable of eliminating the need to frequently replace the transfer film, thereby allowing the transfer film to be used over a prolonged time. According to the method of winding up a transfer film, the transfer film fed from a feed roll through a feed path is pressed onto a fed printed sheet to transfer patterns of the transfer film, and then the transfer film is wound up onto a windup roll through a windup path. During the rewind of the transfer film from the windup roll to the feed roll, a lateral position of the transfer film running along the feed path is detected, and the feed roll is moved in its axial direction to follow a lateral positional change of the transfer film.

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Kanazawa, Japan

Toshio Yamashita