Wiping mechanism of optical sorter

Abstract

The present invention provides a wiping mechanism of an optical sorter capable of cleaning a transparent plate of an optical part without contamination of a reciprocating drive mechanism of a wiper due to dust or the like. The said wiper mechanism of the said optical part of the said optical sorter has the drop space in which the object to be sorted falls, and the airtight space in which the optical detection means which detects the said object to be sorted is arrange|positioned. The partition wall between the two spaces of the optical part of the optical sorter has a transparent plate that enables the optical detection unit to detect the sorted object. A wiper that contacts the transparent plate to clean the transparent plate is disposed in the drop space of the optical portion, and a reciprocating drive mechanism that slides the wiper along the transparent plate is disposed in the closed space. The wiper and the movable part of the reciprocating drive mechanism are integrally connected by magnetic force via a partition wall between the two spaces.

Description

technical field [0001] The present invention relates to an optical sorting machine for sorting granular materials such as grains and resin particles, or sheets such as seaweed based on color, etc., and particularly relates to wiping of a transparent plate for cleaning the optical part in the optical sorting machine mechanism. Background technique [0002] At present, the following optical sorting machines are known that sort grains such as rice, wheat, beans, and nuts, resin chips such as granules and balls, pharmaceuticals, ores, white sand, etc. Raw materials consisting of granules and flakes are sorted into good and bad products, or foreign matter mixed in the raw materials is removed. [0003] In the above-mentioned optical sorter, in the optical part, the optical detection device detects the granular matter falling from the lower end of the chute, etc., judges whether it is good or bad based on the detection signal, and based on the result of the good or bad judgment, ...

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Problems solved by technology

[0012] However, the wiper mechanisms described in the above-mentioned Patent Documents 1 to 3 all have a reciprocating drive mechanism for the wiper disposed in the space where the granular materials and the like fall, and there is a problem that the reciprocating drive mechanism is contaminated by the dust and the like.

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