Japan Tobacco Inc.

Shigemitsu Inomata

Mikio Komori

Takehiro Suzuki

Shigenobu Kushihashi

Yutaka Okumoto

Fumio Kubo

Masayoshi Saitoh

An apparatus for determining a tobacco shred filling quality includes a rotational position detector for detecting the rotational position of a driving drum of a cigarette manufacturing apparatus, a density detector for continuously detecting a tobacco shred filling density of a continuous cigarette rod, and a controller which receives the outputs of both detectors. The controller samples a density signal from the density detector every time it receives a pulse signal from the rotational position detector during a period corresponding to a distance from the beginning of the rear end portion of each double cigarette rod to the end of the front end portion of a succeeding double cigarette rod, and integrates the sampled density signal over a period corresponding to each end portion of each double cigarette rod. When the integration result falls below an allowable lower limit, the controller determines that tobacco shreds are likely to fall from the ends of the double cigarette rod during the manufacturing process, and eliminates this double cigarette rod when it reaches a filter attachment section.

Method and apparatus for determining the tobacco shred filling quality

A trimming control device for a cigarette manufacturing machine is provided with a pair of rotatable trimming disks having pockets on their peripheral edges for trimming a shredded tobacco layer on a tobacco band, a detecting device for detecting a filling density of the shredded tobacco in a tobacco rod, and a control board to which output from the detecting device is supplied. The control board makes a filling density distribution in the cigarette rod by sampling the output of the detecting device, extracts a peak zone including a peak from the filling density distribution, and determines a target cutting position of a tobacco rod at the central position of the peak zone.

Trimming control device for cigarette manufacturing machine

A control apparatus for a cigarette production machine according to the present invention comprises a density sensor for detecting the filling density of shredded tobacco in a continuously formed tobacco rod, an integrator for integrating the output of the density sensor for a predetermined period of time, an arithmetic device for calculating the unit filling (filling amount of the shredded tobacco corresponding to a predetermined length of the tobacco rod) on the basis of an integral value from the integrator, multiplication-type D/A converter for supplying the integrator with an integral gain proportional to the rod speed of the cigarette production machine, and a trimming device for controlling the feed of the shredded tobacco onto a cigarette paper in accordance with the unit filling calculated by means of the arithmetic device.

Apparatus for controlling the filling amount of shredded tobacco in

A monitoring system comprises an inspection device incorporated in a cigarette manufacturing machine and a server computer connected to the inspection device by means of a communication line. The inspection device includes a measuring circuit for continuously calculating the fill of the cut tobacco in each of a given number of divisions of each cigarette in accordance with a detection signal from a density sensor, an enrollment control section for repeatedly storing calculation data from the measuring circuit in a quantity corresponding to a predetermined number of cigarettes at a time, and a CPU for computing average calculation data for each division of each cigarette in accordance with the stored calculation data. The server computer originates quality data for the cigarettes in accordance with the average calculation data and displays the quality data on a CRT.

System for monitoring the quantity of cut tobacco in cigarettes

An apparatus for carrying out a web delivery method is designed so that a web is delivered from a freely rotatable web roll to be supplied to a cigarette manufacturing machine as a pulling roller rotates. This apparatus has a powder brake for applying a braking force to the web roll, a rotary encoder for detecting the number of revolutions of the web roll, a timing sensor for detecting the number of revolutions of the pulling roller, a CPU board for calculating the diameter of the web roll in accordance with detection signals from the rotary encoder and the timing sensor, and a control board for controlling the braking force of the powder brake in accordance with various operation modes of the apparatus and the diameter of the web roll.

Web delivery apparatus for a cigarette manufacturing machine and a

A paper web reservoir apparatus comprises a reservoir box, which has an inlet port through which a paper web paid out from a paper web supply section is introduced into the reservoir box, an outlet port through which the paper web delivered to a cigarette rod forming machine, and a number of vent holes bored through the wall of the reservoir box.

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Tokyo, Japan

Shigemitsu Inomata