Laser-perforated hollow filter tip detection device and method

Abstract

The invention discloses a laser-perforated hollow filter tip detection device and method, and belongs to the technical field of cigarette production and manufacturing. A point light source is used for lighting the end face of a filter tip, the point light source directly irradiates the end of the hollow filter tip, the background contrast of a laser hole and the filter tip is improved, the laser perforation detection accuracy is improved, the upper end face and the lower end face of the filter tip are subjected to lighting through the point light source, the hollow defect of the filter tip is detected, the detection result is combined with the laser hole detection result, the defect type of the cigarette is accurately judged, the number of the defective cigarettes of the laser-perforated hollow filter tip is accurately counted, and fault judgment on filter tip production equipment is facilitated.

Description

technical field [0001] The invention belongs to the technical field of cigarette production and manufacturing, and in particular relates to a laser perforated hollow filter tip detection device and a detection method. Background technique [0002] In order to reduce the draw resistance of slim cigarettes, improve ventilation and reduce tar, new slim cigarettes use hollow special filters, and use high-energy laser beams to penetrate tipping paper and filter rod forming paper to form tiny Holes, thereby increasing the ventilation rate of the cigarette, and bringing a better smoking experience while reducing tar. In the production process of the new slim cigarette filter, the laser drilling equipment is accidentally polluted by the laser head, resulting in the loss of laser drilling or the change of the laser aperture in the formed cigarettes. At the same time, the hollow special filter is still incomplete or hollow. floc filling and other phenomena, resulting in unqualified w...

AI Technical Summary

Problems solved by technology

In the production process of the new slim cigarette filter, the laser drilling equipment is accidentally polluted by the laser head, resulting in the loss of laser drilling or the change of the laser aperture in the formed cigarettes. At the same time, the hollow special filter is still incomplete or hollow. floc filling and other phenomena, resulting in unqualified waste cigarettes

In the existing technology, there is no inspection equipment for full inspection of cigarette laser perforated hollow filters. Traditional laser hole detection uses light source and camera relative settings to detect laser holes. This method is due to the poor light transmittance of filters. , the probability of missed detection and false detection is high, and it is impossible to completely eliminate laser perforated defective cigarettes

The filter hollow detection and laser perforation detection of traditional equipment are set on different drums, but both the hollow structure and the laser hole will affect the light transmittance of the filter, and the independent design of filter defect detection cannot accurately count the defects of different types of filters The number of cigarettes brings great challenges to production operations and quality assurance

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