JPS5937069B2 - Cigarette manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a tobacco shredding compression molding path in a cigarette manufacturing apparatus.

Regarding the tobacco shredding compression molding route, the special public official 760 of 1960
0 and Japanese Patent Publication No. 1972-24758, it is described as "compression shoe and compression tongue" and "tongue" and is well known.

The compression surfaces of these conventional tobacco shredding compression molding paths were all constructed of smooth surfaces.

However, in this known technique, it is insufficient to obtain uniform filling when molding shredded tobacco with a low specific gravity, such as the product with a high relaxation cut ratio, which has been in high demand in recent years, and this may result in the occurrence of missing rolls in the middle part, There was a problem with frequent machine stoppages.

Furthermore, shredded regular tobacco, which has a relatively high specific gravity, has also been considered a problem in relation to improving production speed.

The present invention has been made to improve the problem of the prior art by discovering that the above-mentioned problem is caused by speed fluctuations in tobacco shredding due to resistance in the tobacco shredding and compression molding path. As per the claims set forth at the beginning.

Examples thereof will be described below with reference to the drawings.

Reference numeral 1 denotes an endless porous band, which is driven in the direction of the arrow by a driving roller 1-1.

An intake chamber (not shown) is arranged above the porous band 1,
Air is drawn into the intake chamber through this porous band 1, and shredded tobacco carried by the airflow is attracted to the lower surface of the porous band 1.

The intake chamber extends to a position below the drive roller 1-1.

A perforated band 1 of considerable length extends over a paper wrapper 4, which paper wrapper 4 is guided over guide rollers 4-1 and 4-2 so as to run horizontally towards the left in FIG. It is supported by an endless garniture tape 5.

The garniture tape 5 is a garniture gutter guide 5-1.
It passes through rollers 5-2 and 5-3 so as to run through the rollers 5-2 and 5-3.

The perforated band 1 and the wrapping paper 4 enter a convergent passage in the area where they overlap.

The wrapping paper 4 is arranged to move at the same speed as the porous band 1.

The garniture trough-like guide 5-1 gradually changes its cross-sectional shape from the roller 4-2 to a position immediately in front of the end of the intake chamber, forming the garniture tape 5 into a substantially U-shaped cross-section.

At the end of the intake chamber, the perforated band 1 and the wrapping paper 4 are close enough to each other to engage and grip the shredded tobacco simultaneously.

Next to the perforated band 1 above the wrapping paper 4, a tobacco shredding and compression molding path consisting of a compression shoe 2 and a compression tongue 3 is arranged.

The compression shoe 2 (FIG. 2) has an edge 2-1 at its tip, and this edge 2-1 has a perforated band 1 connected to the drive roller 1-.
When passing around the porous band 1, it comes into contact with the porous band 1 and acts to separate the shredded tobacco from the porous band 1.

The tobacco shredding contact surface excluding the tip of the compression shoe 2 is as follows:
It constitutes the front half of the tobacco shredding compression molding path, and its cross section is formed to gradually become narrower.

A compression tongue piece 3 provided following the compression shoe 2 (
Figure 3) constitutes the latter half of the tobacco shredding compression molding path,
Its cross section is gradually narrower following the compression shoe 2.

The wrapping part 6 provided in the next step of the compression tongue piece 3 wraps one end edge of the wrapping paper 4 around the shredded tobacco, and then glues the other end edge with the glue part 7. Wrap the edges.

In the next process of the winding section 6, a drying section 8 and a cutting section (not shown) of tobacco rods are sequentially filmed, and in the drying section 8, the edges are glued after drying the parts. Cut into individual cigarettes.

A large number of discontinuous depressions 4a are provided at equal or irregular intervals on the tobacco cutting contact surface of the tobacco cutting compression molding path.

A main support surface 4 for shredding tobacco is formed between the depressions 4a.

The width of the recess 4a is 1.5 mm to 6.0 mm, and the length is 1.
．． 5-6. The depth is 0.2 mm or more, and its total area reaches about half or more of the tobacco cut contact surface.

4 and 5 show the compression shoe 2 and the compression tongue piece 3.
A main support surface 4' for the shredded tobacco is formed by providing a large number of protrusions in a scattered manner on the shredded tobacco contact surface, and
A continuous depression 4'a is formed around the main support surface 4'.

When shredded tobacco passes at high speed through the lower surface of the shredded tobacco compression molding path of the present invention, the shredded tobacco is mainly compressed by the main support surfaces 4 and 4', and the shredded tobacco is compressed and molded by the depressions 4a and 4'.
The air film at a reduces the contact resistance, and
It is presumed that this is because the vibration of the air film facilitates compression molding.

In the above embodiment, the compression shoe 2 and the compression tongue piece 3 are
Although the main support surface and the depression were provided on both tobacco shredding contact surfaces, the effect of the present invention may not be fully recognized even when the technology of the present invention is applied to either one, that is, a part of the tobacco shredding compression molding path. can.

Therefore, when the compression shoe 2 and the compression tongue piece 3 are integrated, the technique of the present invention may be applied to the front half or the rear half thereof.

The technology of the present invention is applied to the compression shoe 2 and the compression tongue piece 3, and cigarettes are manufactured at a production rate of 4000 pieces per minute using shredded tobacco containing about 55% relaxation shreds with a small specific gravity. After processing into cigarettes with filters, a hardness measuring device was used to press a roller with a constant load in the longitudinal direction of the cigarettes with filters, and the strain rate appearing on a strain gauge connected to the roller was recorded. The results are shown in Figure 6.

Similarly, FIG. 7 shows the results of measuring the hardness of filter-equipped cigarettes manufactured without applying the technique of the present invention.

In FIGS. 6 and 7, A indicates the filter portion of the filter-equipped cigarette, and B indicates the tobacco-filled portion of the filter-equipped cigarette.

As shown in the figure, when the technique of the present invention is applied, more uniform filling is obtained than with the conventional method, and the difference is significantly better when cutting tobacco with a small specific gravity.

Furthermore, even in the case of ordinary shredded tobacco, which has a relatively large specific gravity, it provides good results in solving problems that occur as a result of increasing the production speed, and its practical effects are extremely high.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of the apparatus of the present invention. FIG. 2 is a perspective view of a compression shoe according to the present invention. FIG. 3 is a perspective view of a compression tongue according to the present invention. 4 and 5 are perspective views of other embodiments of the compression shoe and compression tongue. 6 and 7 are diagrams showing the state of filling tobacco. 2... Compression lever, 3... Compression tongue piece, 4゜4'... Main support surface, 4a, 4'a...
... hollow.

Claims (1)

[Scope of Claims] 1. A means for supplying shredded tobacco onto a wrapping paper that is conveyed in a horizontal direction, a means for compressing and compressing shredded tobacco provided above the wrapping paper, and a means for compressing and molding shredded tobacco provided in a step subsequent to the compressing and molding means for shredding tobacco. a tobacco wrapping and gluing means, and a rod-shaped tobacco cutting means provided in a step subsequent to the paper wrapping and gluing means, and a number of depressions are provided on the tobacco cutting contact surface of the tobacco cutting and compression molding means. A cigarette manufacturing device characterized by: 2. A means for supplying shredded tobacco onto a wrapping paper to be conveyed in a horizontal direction, a means for compression molding shredded tobacco provided above the shredded tobacco wrapping paper, and a wrapping paper provided in a step subsequent to the compression molding means for shredding tobacco; It has an adhesive means, and a tobacco rod cutting means provided in the next step of the paper wrapping and adhesive means,
A cigarette manufacturing apparatus characterized in that a plurality of protrusions are provided in a scattered manner on the tobacco cutting contact surface of the tobacco cutting compression molding means.