Device and method for measuring suction resistance of filter stick or cigarette

Abstract

The invention discloses a device and a method for measuring suction resistance of a filter stick or cigarette. The device comprises a control system, an air circuit system, a first pressure difference converter, a vacuum flow sucker and a suction resistance meter, wherein the control system further comprises a digital output module and an analog input module; the air circuit system further comprises a first solenoid valve, a second solenoid valve, a third solenoid valve, a fourth solenoid valve, a fifth solenoid valve and a sixth solenoid valve; the suction resistance meter further comprises a metering head, an auxiliary cylinder and a linear cylinder; the metering head further comprises a metering base, a metering tube and a latex sleeve; and the auxiliary cylinder comprises a first cylinder and a second cylinder. By using the technical scheme in the invention, the suction resistance of the filter stick or cigarette can be detected, analyzed and controlled at real time, the positioning accuracy is high and the measured data is accurate.

Description

technical field [0001] The invention relates to the technical field of filter stick or cigarette quality detection, in particular to a filter stick or cigarette draw resistance measuring device and method. Background technique [0002] Cigarette and filter rod draw resistance detection is an important detection link in the production process of cigarettes and filter rods, which is directly related to the inner quality of cigarettes. The draw resistance of cigarettes and the pressure drop of filter rods will affect the taste of cigarettes, the amount of smoke released such as tar, and the difficulty of smoking cigarettes. At present, GBT / 18767-2002 "Standard Conditions and Measurement of Tobacco and Tobacco Products Cigarette Draw Resistance and Filter Rod Pressure Drop" (ISO6565:1999, IDT) is usually used when measuring cigarette draw resistance and filter rod pressure drop. It is determined for the standard draw resistance or pressure drop of cigarettes and filter rods. ...

AI Technical Summary

Problems solved by technology

[0005] However, most of the current measuring heads are of an integral structure. During the measurement, the rotating cylinder drives the measuring head to rotate in place as a whole. After the filter rod or cigarette is measured, it needs to rotate 180° during the falling process. The action stroke is long and the positioning accuracy is poor. After the measuring device returns to its original position, the center of the measuring tube and the drop center of the filter rod / cigarette are likely to deviate, resulting in easy bruises when the filter rod or cigarette falls, affecting the accuracy of the measurement data

Moreover, the design of the mechanical structure of the measuring head is not perfect, and the sealing performance is not good, which not only affects the accuracy of the detection data, but also relatively troublesome for safety maintenance

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