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Method for automatically positioning cigarettes in mold box of cigarette packaging machine

A technology of automatic positioning and machine mold box, which is applied in the direction of automatic packaging control, packaging, packaging cigarettes, etc., to achieve the effect of improving accuracy, ensuring accuracy, and accurate automatic positioning

Active Publication Date: 2015-01-28
THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic positioning method for cigarettes in the mold box of a cigarette packaging machine, so as to solve the problems existing in the prior art and ensure the accuracy of each cigarette detection area in the process of cigarette empty detection

Method used

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  • Method for automatically positioning cigarettes in mold box of cigarette packaging machine
  • Method for automatically positioning cigarettes in mold box of cigarette packaging machine
  • Method for automatically positioning cigarettes in mold box of cigarette packaging machine

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Embodiment Construction

[0019] A method for automatic positioning of cigarettes in the mold box of a cigarette packaging machine. First, grayscale processing is performed on the image of the cut tobacco end surface of the cigarette to be inspected collected by an image sensor, and then horizontal projection is performed using the grayscale value of the image pixel as a projection feature to obtain a horizontal projection. Projection curve. In the horizontal projection curve, the projection value at the boundary of each row of cigarettes will be larger than other surrounding areas, forming a peak. The horizontal projection curve is subjected to special filtering processing to obtain several independent sections corresponding to the number of cigarette rows. Waveform, search and determine the specific position of the peak in each segment of the waveform, and segment the grayscale image according to the position of the peak to obtain the image corresponding to each row of cigarettes;

[0020] In the same...

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Abstract

The invention discloses a method for automatically positioning cigarettes in a cigarette void end detection process. The method comprises the following steps of accurately positioning cigarettes in a mold box of a cigarette packaging machine, and determining the detection region of each cigarette, thereby ensuring the accuracy of follow-up cigarette void end detection. According to the method, the characteristic that tobacco shreds and coil paper are obvious in color contrast is fully utilized, a direction projection method is adopted to account local slight differences in a certain direction so as to form an obvious characteristic; by virtue of performing special filtering processing to remove interference on a projection curve, traversing and searching the specific position of each wave crest and finally determining the corresponding region of each cigarette, automatic cigarette positioning is realized.

Description

technical field [0001] The invention relates to the field of cigarette positioning methods, in particular to an automatic positioning method for cigarettes in a mold box of a cigarette packaging machine. Background technique [0002] In the process of cigarette processing and production, in order to ensure the quality of cigarettes in the final cigarette package, a cigarette empty detection device needs to be installed on the packaging line to detect whether there are defects such as empty cigarettes in the mold box. With the continuous maturity of machine vision technology, the empty end detection method of cigarettes based on machine vision technology has been more and more widely used. [0003] In the cigarette empty detection device based on machine vision technology, each cigarette needs to be detected separately, and the first step of detection is to determine the detection area of ​​each cigarette in the mold box, that is, the area of ​​interest corresponding to each ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65B57/00
CPCB65B19/28
Inventor 张济民龚灿金怀国王建彤
Owner THE 41ST INST OF CHINA ELECTRONICS TECH GRP
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