Plastic bottle sorting method

Abstract

The invention relates to a plastic bottle sorting method. The plastic bottle sorting method comprises the following steps of orderly feeding, material grinding, material conveying, material identification and material sorting. An industrial camera collects images and stores the images into image files in a two-dimensional matrix manner, images collected by an image collecting device is subject to treatment like median filtering, edge detection, closed operation, contour extraction and center extraction through an industrial personal computer, positions of all plastic bottles are determined, a color discrimination zone is arranged on the side, close to a conveying belt, of a photographing zone, the plastic bottles in the discrimination zone are subject to HSV component extraction, all components and HSV components of the known transparent plastic bottles are compared, the colored plastic bottles are further determined, the positions of the colored plastic bottles are further determined, and the position information is sent to a lower computer; and the lower computer drives baffles at corresponding positions by controlling a driving device to remove the colored plastic bottles. By means of the plastic bottle sorting method, whether the plastic bottles have colors or not can be efficiently and accurately judged in an on-line and real-time manner, the positions of the colored plastic bottles are determined in real time, the colored plastic bottles can be accurately blocked out through a sorting mechanism, the sorting accuracy is high, safety and stability are achieved, and cost is low.

Description

technical field [0001] The invention relates to a method for sorting plastic bottles. Background technique [0002] my country is a big producer and consumer of plastic bottles. According to statistics, my country produces about 75 billion plastic bottles each year. In the process of sorting according to the color of plastic bottles, domestic plastic bottle recycling manufacturers still use manual sorting. This greatly reduces recycling efficiency and poses a huge threat to workers' health, so it cannot meet the requirements of modern industrial production operations. Contents of the invention [0003] In view of this, the object of the present invention is to provide a sorting method for plastic bottles, which can efficiently and accurately judge whether the plastic bottles are colored in real time online, determine the position of the colored plastic bottles in real time, and accurately sort the colored plastic bottles through the sorting mechanism. The plastic bottle is...

AI Technical Summary

Problems solved by technology

[0002] my country is a big producer and consumer of plastic bottles. According to statistics, my country produces about 75 billion plastic bottles each year. In the process of sorting according to the color of plastic bottles, domestic plastic bottle recycling manufacturers still use manual sorting. This greatly reduces recycling efficiency and poses a huge threat to workers' health, so it cannot meet the requirements of modern industrial production operations

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