A machine vision-based detection method for foreign matter in cigarette mouth

Abstract

The invention belongs to the field of cigarette quality detection methods, and discloses a machine vision-based method for detecting foreign matter in cigarette laps. The transposition module adopted enables the outer surfaces of cigarettes at all angles to be presented to an image collector, and at the same time The cigarettes are dynamically transported; the qualified cigarettes pass through the transposition module smoothly, and the positive pressure generated by the adsorption column ejects the unqualified cigarettes to be eliminated, which is especially suitable for the large-scale detection of a large number of cigarettes; the image processor will be detected and will be in the The image acquisition of the cigarettes on the transposition module adopts the method of synchronous detection of foreign matter and the cigarette lap. If the position of the foreign object coincides with the position of the cigarette lap, use the air jet to remove the cigarette lap. For foreign matter, it is necessary to conduct a second identification to see if the foreign matter still exists. This technical solution can accurately identify defective or unqualified cigarettes, and avoid unnecessary consumption.

Description

technical field [0001] The invention belongs to the field of cigarette quality detection methods, and relates to a machine vision-based method for detecting foreign matter on the mouth of cigarettes. Background technique [0002] In the production process of the current cigarette machine, the shredded tobacco enters the coiling part from the shred supply part. After the shredded tobacco is pressed into the cigarette paper through a mechanical structure, it is rolled into a long stick by gluing and pasting. Among them, the overlapping part of the cigarette paper is For catch up. In the process of rolling and forming, due to the influence of various factors such as sealing, some cigarette powder will be pasted on the lap when the glue is applied, forming defective cigarettes. This defect is also divided into two categories, one The reason is that the tobacco powder is simply stuck on the surface of the lap, and there is a possibility of falling off in the subsequent processin...

AI Technical Summary

Problems solved by technology

In the process of rolling and forming, due to the influence of various factors such as sealing, some cigarette powder will be pasted on the lap when the glue is applied, forming defective cigarettes. This defect is also divided into two categories, one The reason is that the tobacco powder is simply stuck on the surface of the lap, and there is a possibility of falling off in the subsequent processing. The other is that a part of the tobacco powder has been embedded in the inner side of the cigarette paper and exposed at the lap. This defect This makes the cigarette powder unable to fall off from the mouth, and can only be removed from the cigarette; in addition, when the tobacco powder is adsorbed and exists on the surface of the cigarette, it will fall naturally during the subsequent transmission, packaging, etc. Defective cigarettes in the usual sense do not require special treatment

If it is not possible to accurately distinguish such defective cigarettes from the non-defective cigarettes, either the non-defective cigarettes will be mistakenly rejected and cause unnecessary consumption, or the defective cigarettes will flow into the consumer market and affect the reputation of the product.

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