Hitachi Engineering Co., Ltd.

Hitachi Industry & Control Solutions, Ltd.

Hitachi Information & Control Solutions, Ltd.

Kunitaka Asano

Hirohisa Fukuda

Tadahiro Katane

Hiromi Yamazaki

Mitsuhiro Matsushima

Yongduo Xing

Yamazaki Hiromi

A container screening device () including: a star wheel () arranged on or above a conveyance surface () on which inspection objects () are conveyed and having an outer periphery formed with plural housing portions () configured to house the inspection objects (); a rotation shaft () arranged under the conveyance surface () and configured to rotate with the star wheel (); a bearing portion () rotatably supporting the rotation shaft (); air holes () extending through interiors of the star wheel () and the rotation shaft () and communicating with the rotation shaft () and the housing portions (); and an air coupling () fixed to a periphery of the rotation shaft () and configured to generate suction force in the air holes () to suck the inspection objects () to the housing portions ().

Container screening device

Disclosed are a foreign matter inspection device and a foreign matter inspection method, in which the accurate inspection of foreign matter is performed using captured images by continuous shooting in the state in which a movement locus due to the falling caused by the movement of the foreign matter along the inner wall of a container from the horizontal direction of the container as a result of rotation is formed so as to be long. A rotating device is provided with a rotation control means for executing the rotational motion in which container holding members for holding the container in a horizontal manner or at a constant inclination angle relative to the horizontal axis of the container, and the container are rotated at an angle of 60&#xb0; or more, and then stopped, wherein a foreign matter detection means detects the foreign matter according to the movement locus of the foreign matter, which is formed using the captured images obtained by the continuous shooting for each rotational motion at constant time.

Foreign matter inspection device and foreign matter inspection method

In an inspection device for inspecting for possible foreign matters contaminating a liquid filled transparent container, a red color illumination unitA is disposed behind a glass containerfilled with liquid and a pair of blue color illumination unitsB andC are disposed so as to sandwich the red color illumination unitA. Both the red color and blue color illumination unitsA,B andC are disposed so that the red color light transmits through the glass containerand the blue color light reflected by a possible foreign matter in the liquid merges with the red color transmission light. Both the transmission light and the reflection light are separated by a color separation mirrorand are imaged by CCD camerasandso as to detect both black color series and white color series foreign matters can be detected at the same time.

Inspection device and system for inspecting foreign matters in a liquid filled transparent container

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Hitachi, Japan

Kunitaka Asano