Method and device for measuring smoldering rate of cigarette paper

Abstract

The invention discloses a method and device for measuring a smoldering rate of cigarette paper. The device comprises a base and a combustion chamber cover, wherein the rear end of the base is provided with a baffle plate, the combustion chamber cover is hinged on the upper edge of the baffle plate, a fume extractor is arranged above the baffle plate, an infrared detection device is arranged below the fume extractor and comprises a plurality of infrared probes, support rods corresponding to the infrared probes of the infrared detection device are arranged on the base, support shafts vertical to the support rods are arranged under the support rods, centers of the support rods are hinged on the support shafts, two ends of each support shaft are respectively provided with a strip-shaped magnet, a heating resistance wire is arranged between the support shaft and the right magnet, cigarette paper is placed on one side of each support rod, which is positioned on the support shaft, the other side of each support shaft is provided with a ball screw, a movable block is sleeved on the right end of the ball screw, the left end of the movable block is provided with an incline block, and the ball screw is connected with a step motor. The device has the advantages of simple structure and convenience and accuracy in measurement.

Description

technical field [0001] The invention relates to the measurement of the combustion performance of cigarette paper, in particular to a method and device for measuring the smoldering rate of cigarette paper. Background technique [0002] For cigarette paper, the speed of smoldering speed plays an important role in the control of cigarette flameout, cigarette or tar content and smoke nicotine content, so the determination of cigarette paper smoldering speed is very important for the tobacco industry to control cigarettes and cigarette paper products. The inner quality is of vital importance. [0003] The traditional smoldering performance tester adopts the vertical burning method, which often causes faster burning due to design limitations, and cannot reflect the actual burning performance of cigarette paper. In addition, it cannot detect the absolute length of cigarette paper smoldering, and cannot reflect the performance difference between samples, so it is of little signific...

AI Technical Summary

Problems solved by technology

[0005] The existing cigarette paper smoldering speed tester can basically meet the laboratory test requirements, but it has the following disadvantages: 1. The ashes after burning the paper will adhere to the paper, blocking the light of the emission tube, which is easy to cause misjudgment by the system. Causes errors in measurement results; 2. The paper support rod is controlled by an electromagnet, and the short on-off time causes the support rod to move too fast, causing the paper sample to shake, affecting the burning rate and even causing the sample to go out; 3. The current structure of the resistance wire is not good. Reasonable, large deformation and bending after power on and heating, resulting in irregular smoldering lines, which do not meet the requirements of industry standards; 4. The smoke generated by the combustion of the instrument is directly discharged to the laboratory through the fan, polluting the environment and affecting the test staff health

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