Vent hole blocking device for cigarette filter

Abstract

The invention discloses a vent hole blocking device for a cigarette filter. The vent hole blocking device is characterized by comprising a base and a vertical plate fixed on the base, wherein the vertical plate is provided with a revolving shaft for assembling an adhesive tape, and an arc-shaped cigarette limiting sleeve for clamping the cigarette filter; the inner diameter of the arc-shaped cigarette limiting sleeve is the same as the diameter of the cigarette filter; one side of the revolving shaft is provided with a horizontal guide rail and an inclined surface guide rail which is connected with the horizontal guide rail and bent downwards; the tail end of the inclined surface guide rail is tangential to the inner ring surface of the arc-shaped cigarette limiting sleeve on the vertical plate; the bottom surface of the inclined surface guide rail which is tangential to the arc-shaped cigarette limiting sleeve is provided with a cutting blade through a spring resetting mechanism; and the cutting edge surface of the blade is vertical to the inclined surface guide rail. The vent hole blocking device has the advantages of simple structure, high practicability and low cost, the aim of blocking a vent hole at 100 percent by uniformly winding the cigarette filer with the adhesive tape conveniently and rapidly is fulfilled, the property and the uniformity of a tested sample are not damaged, and cigarettes are not required to be treated specially.

Description

technical field [0001] The invention relates to a device for blocking the air hole of a cigarette filter, in particular to wrapping the cigarette filter with adhesive tape to achieve the purpose of blocking the air hole of the filter. Background technique [0002] With the continuous rise of the global tobacco control movement, especially the official entry into force of the "Framework Convention on Tobacco Control (FCTC)" in 2005, public health organizations represented by the WHO recommend measuring the mainstream smoke release of cigarettes according to the Canadian deep smoking model . The Canadian deep smoking mode requires 100% blockage of the filter vents. At present, most researchers at home and abroad use tape to wrap a circle around the cigarette filter to block the filter vents. This kind of manual operation not only has low work efficiency, but also the operation method of wrapping the filter tip with tape is different for each operator, even if the same operato...

AI Technical Summary

Problems solved by technology

This kind of manual operation not only has low work efficiency, but also the operation method of wrapping the filter tip with tape is different for each operator, even if the same operator operates at different times and in different environments, the operation method is different to a certain extent, causing the tested Changes in the pressure drop of the cigarette filter destroy the uniformity of the sample, thereby affecting the test results of the smoke release

Although special cigarette holders have been developed to block filter vents, they are expensive and must be used in conjunction with smoking machines, and are not suitable for popularization in scientific research

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