Measurement device for hardness of filter stick or cigarette

Abstract

The invention discloses a measurement device of a filter stick or cigarette. The measurement device comprises a pedestal, a vertical support, a balance beam, a vertical movable front weighing arm and a vertical movable rear measuring arm to form a balance structure; the lower end of the front weighing arm is connected with a pre-pressure head; a test platform for placing the filter stick or cigarette is disposed below the pre-pressure head; the lower end of the rear measuring arm is connected with an indication column; a displacement measuring apparatus cooperating with the indication column is disposed below the indication column; one side of the balance beam is provided with an adjustment weight for adjusting the balance of the balance beam; the measurement device also comprises a pressure applying head and a pressure applying head moving mechanism; the weight of the pressure applying head is 279-291 g; and the pressure applying head is contacted or separated from the pre-pressure head through the pressure head moving mechanism. By adopting a lever balance principle, the measurement device tests by vertically applying the pressure, can accurately check the size of the applied pressure, and has high measurement precision.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a filter stick / cigarette hardness measuring device. Background technique [0002] The hardness test of filter rods / cigarettes, according to the definition of hardness in China Tobacco Industry Standard, is the percentage of the diameter of the sample after radial compression to the diameter of the sample before compression within a certain period of time, and the required pressure gravity is 2.94±0.1N (equivalent to a weight of 299-301 grams), and it is stipulated that there are two stages of pre-pressing and pressing. The pressing weight of the pre-pressing stage is 10-20 grams, and the pressing time is specified. The hardness index of the nozzle rod has a relatively large influence. At present, most of the existing manufacturers use horizontal pressure measurement, that is, the pressure acts on the sample vertically along the horizontal direction. The disadvantage of this h...

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Problems solved by technology

[0002] The hardness test of filter rods / cigarettes, according to the definition of hardness in China Tobacco Industry Standard, is the percentage of the diameter of the sample after radial compression to the diameter of the sample before compression within a certain period of time, and the required pressure gravity is 2.94±0.1N (equivalent to a weight of 299-301 grams), and it is stipulated that there are two stages of pre-pressing and pressing. The pressing weight of the pre-pressing stage is 10-20 grams, and the pressing time is specified. The hardness index of the nozzle rod has a relatively large influence. At present, most of the existing manufacturers use horizontal pressure measurement, that is, the pressure acts on the sample vertically along the horizontal direction. The disadvantage of this horizontal pressure method is that the pressure cannot be accurately checked. size, and the friction of the device itself cannot be adjusted; in addition, some manufacturers use direct pressure measurement in the vertical direction, and use air bearings to reduce friction, but gas lubrication also has disadvantages, because the buoyancy of the gas flowing at high speed will affect the The true value of the gravity of the weight on the filter rod / cigarette stick limits the application of the filter stick / cigarette stick hardness measuring device

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