Ishida Co. Limited

Yoshito Inazumi

Toshiharu Kageyama

Shinya Ikeda

Satoshi Konishi

Osamu Hirose

Yuji Okamoto

Takuyu Kubo

Takakazu Moriwaki

The object of the present invention is to provide a combination weighing device in which supply of articles at an article conveyance part is controlled with good precision. A combination weighing device () is provided with article conveyance parts () having loading parts () of articles and driving parts () for driving the loading parts, the article conveyance parts () driving the driving parts and thereby causing the articles to be conveyed to hoppers () arranged downstream in a conveyance direction, a sensing part () for sensing, in non-contact manner, a state of the articles on the loading parts, and a supply control part () for controlling supply of the articles by controlling driving of the article conveyance parts based on a sensing result of the sensing part. The sensing part sense, for a plurality of regions along the conveyance direction, the state of the articles for each of the regions. The supply control part controls the driving based on a physical quantity relating to a height of the articles on the loading parts for each of the regions, the height being ascertained from the state of the articles of each of the regions.

Combination weighing device for weighing articles conveyed to a hopper

Provided is a combination weighing device whereby a physical quantity for assessing the quantity of articles loaded on a conveyance path for conveying articles to a weighing part can be accurately sensed in non-contact manner in order to appropriately control the supplying of articles to the weighing part, without the sensing being affected by a structure above the combination weighing device and/or side walls provided to sides of the conveyance path. A combination weighing device () is provided with cameras () and a plurality of radial feeders () for conveying articles to weighing hoppers (). The radial feeders () have side walls () for surrounding sides of an article conveyance path. The side walls () extend upward and along a conveyance direction of the articles. The cameras () sense, in non-contact manner, a physical quantity for assessing a quantity of articles loaded on the radial feeders (). The cameras () sense the physical quantity from above the radial feeders (), and in an obliquely downward direction from an upstream side to a downstream side in the conveyance direction of the articles.

Combination weighing device including conveyors and cameras

Provided is a conveyor apparatus in which weighing accuracy in a combined weighing apparatus can be improved. In this conveyor apparatus in which a radial feeder () controls the operation of a trough () such that a article supplied from the trough becomes a target supply amount, the apparatus includes: a ranging sensor () for detecting a height (S) of the article on the trough; a drive unit () for driving a trough unit with predetermined feed power (P); a supply amount acquiring part () for acquiring a supply amount (W) supplied from the trough (); and a deriving part () for deriving a relation among the height of the article, the supply amount of the trough, and the feed power of the trough by changing the feed power from the drive unit multiple times to convey the article to the trough.

Conveyor apparatus and combined weighing apparatus

Growing community of inventors

Ritto, Japan

Yoshito Inazumi