Zhengzhou Tobacco Research Institute of Cntc

China Tobacco Yunnan Industrial Co., Ltd

Nan Deng

Shanzhai Shang

Ping Lei

Jingmei Han

Zhiqiang Li

Bin Li

Mingjian Zhang

Jun Wu

Le Wang

Ke Zhang

Bing Wang

Siyao Liao

Shuang Wang

Ruilin Hu

Jiakang Li

Feng Huang

Qi Zhang

Lili Fu

Ran Chen

Yue Sun

Guangyang Qiu

The present invention provides a system for on-line detecting the package airtightness of cigarette packet, which comprises a first conveyor belt; a plurality of detection box bases arranged on the first conveyor belt at preset intervals, wherein the cigarette packets are sequentially conveyed onto each detection box base; a second conveyor belt arranged above the first conveyor belt, and the central plane of the second conveyor belt being in coincide with the central plane of the first conveyor belt; a plurality of detection box covers arranged on the second conveyor belt at preset intervals, wherein each detection box cover is provided with a slit on one side face, and the detection box cover positioned on the lower end face of the second conveyor belt is cooperated with the detection box base directly below the second conveyor belt during the detection; and a detection probe aligned with the slit during the detection so as to detect the package airtightness of the cigarette packet positioned within the detection box cover through the slit. The detection system can detect the package airtightness of the cigarette packet on line packet by packet at high throughout, thereby realizing on-line quality control.

System for online testing of packaging tightness of cigarette boxes

The application proposes a non-destructive testing method for the sealing degree of the small cigarette box packaging, which includes placing the small cigarette box to be tested in an airtight chamber, using a balance cabin to quickly form a stable negative pressure in the airtight chamber; The pressure change of the sealed chamber is continuously measured until equilibrium, and the data model is analyzed and established by using Darcy's law, Fick's diffusion law and the physical process of molecular kinetic theory. Through the non-destructive testing method for the sealing degree of the small cigarette box packaging of the present invention, the traditional destructive measurement (damaged small box packaging) for measuring the sealing degree of cigarette small box is changed into non-destructive testing; The test results have specific physical meaning; The test time of a single sample is reduced to ⅕ of the time of destructive test.

Non-destructive testing method for tightness degree of small cigarette box packaging

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Zhengzhou, China

Nan Deng