Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Printing & Packaging Machinery, Ltd.

Yasunari Suzuki

Osamu Hatano

Mitsuhiro Nadachi

Kazuya Sugimoto

Yasuyuki Baba

Koji Hattori

In a printer for corrugated cardboard sheets and a box making machine for corrugated cardboard sheets, a control device that controls an operation of an air cylinder is provided such that an ink supply roll is moved toward or away from a printing cylinder relative to an intermediate position of a gap between ends of a printing plate attached on a surface of a printing cylinder. With this configuration, ink of an ink supply roll is appropriately transferred to the printing plate, an ink film on the printing plate is uniformized, and then printing precision is enhanced.

Printer for corrugated cardboard sheet and box making machine for corrugated cardboard sheet

A method and system for determining the bonding quality of a bonded area of a flapped boxmaking blank in a boxmaking apparatus at an assembling station of a production line, where opposite end portions of the blank are bonded together with confronting edges of companion end flaps defining a required gap, in terms of the outline of the gap. The quality determination is accomplished by irradiating sheetlike light onto the bonded area across the gap, forming an image of the irradiated light as a light image line composed of discrete segments which are arranged along a reference line for the flap portions and include at least one line segment located off the reference line, computing a ratio of a length of the off-line segment to the entire length of the light image line to obtain a width of the gap, and comparing the width of the gap with a preset reference value.

Method and system for the determination of a quality of bonded area in a

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Hiroshima-ken, Japan

Yasunari Suzuki