JPH11245924A - Embossing apparatus of cigarette packaging machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a stabilized embossing works without giving flexure and fluttering to an inner packaging material even if unwinding speed for the inner packaging material is increased by a method wherein a guide means is provided for winding the inner packaging material which is unwound from a roller round an embossing roller on one side at a specified winding angle. SOLUTION: In an embossing appparatus incorporated in a cigarette manufacturing machine, an alluminum-metallized sheet A unwound from a roll R is guided, passing through between a pair of embossing rollers 2 and 4. In this case the emobssing roller 2 on one side is made as a recess-type roller having a small recess at its outer circumferential face while the embossing roller 4 on the other side is made as a projection-type roller smaller in diameter than the embossing roller 2 and having a small projection an its outer circumferential face for meshing with the recess of the embossing roller 2. Then, the winding angel α is set 90 deg. or more for an alluminum-deposition paper B with a guide roller 12 arranged between an inlet roller 10 and the embossing roller 2, and thereby vibrations of the inner packaging material can be prevented effectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embossing device for a cigarette packaging machine for embossing an inner packaging material of a cigarette bundle.

[0002]

[Related Background Art] A cigarette wrapping machine wraps a predetermined number of cigarette bundles in an inner wrapping material such as aluminum foil or aluminum vapor-deposited paper to form an inner wrapper, and then wraps the inner wrapper with a hard or soft outer wrapping material. Things. In consideration of the environmental load when the inner packaging material becomes waste, the inner packaging material is preferably aluminum-evaporated paper. In this case, the aluminum-evaporated paper is usually embossed. Generally, embossing of the inner packaging material is performed by an embossing device in a cigarette wrapping machine, and the embossing device has a pair of embossing rollers. More specifically, the aluminum-evaporated paper fed from the roll is guided to the roller gap between the pair of emboss rollers, and when passing through the roller gap, the aluminum-evaporated paper is embossed. After this, the aluminum-evaporated paper is cut into predetermined lengths,
Provided for packaging cigarette bundles.

[0003]

In recent years, the packaging speed of a cigarette wrapping machine, that is, the traveling speed of aluminum-evaporated paper, has tended to become higher and higher. With respect to the feeding, a deflection or vibration is caused in the aluminum-evaporated paper. Here, since the aluminum-evaporated paper is sandwiched between the pair of embossing rollers, the above-described vibration greatly changes the tension of the aluminum-evaporated paper upstream of the pair of embossed rollers.
Therefore, when the aluminum-evaporated paper passes through the gap between the rollers, an excessive tensile force is applied to the aluminum-evaporated paper, which causes wrinkles and deviation of the running position on the aluminum-evaporated paper. As a result, not only is the aluminum-evaporated paper broken or the embossed pattern disturbed, but also the aluminum-evaporated paper after embossing cannot be cut at an accurate position.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an embossing device for a cigarette manufacturing machine which is suitable for high-speed operation and can solve the above-mentioned problems. It is in.

[0005]

In order to achieve the above-mentioned object, an embossing apparatus for a cigarette manufacturing machine according to the present invention provides an embossing material fed from a roller at a winding angle of 90 ° or more around one embossing roller. Guide means for winding are provided (claim 1). According to the above embossing device, when the inner packaging material is guided to the roller gap between the pair of embossing rollers, the inner packaging material is wound around one of the embossing rollers at a winding angle of 90 ° or more. Prevents vibration of the inner packaging material.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIG. 1, an embossing apparatus incorporated in a cigarette manufacturing machine includes a roll R of an aluminum-deposited sheet A as an inner packaging material, and an aluminum-deposited sheet unwound from the roll R. A is guided through the space between the pair of embossing rollers 2 and 4. Here, the one embossing roller 2 is a concave roller having a small depression distributed and formed on the outer peripheral surface thereof, while the other embossing roller 4 has a smaller diameter than the embossing roller 2 and has an outer peripheral surface. This is a convex roller in which a large number of small projections that mesh with the depressions of the embossing roller 2 are formed. Needless to say, the pair of embossing rollers 2 and 4 are rotated in the opposite directions and at the same peripheral speed.

[0007] Upstream of the pair of embossing rollers 2 and 4,
A circular cutting knife 6 is disposed on the roll R side, and a part of the peripheral edge of the cutting knife 6 enters the peripheral groove of the cutting roller 7. The cutting knife 6 and the cutting roller 7 cut the aluminum vapor-deposited sheet A fed from the roll R equally in the width direction with rotation, thereby forming a pair of left and right aluminum vapor-deposited papers B.

Downstream of the cutting knife 6, separation rollers 8 are arranged on the left and right. These separation rollers 8 guide the aluminum-evaporated papers B, respectively, and form a predetermined space between the aluminum-evaporated papers B. The cutting of the aluminum-deposited sheet A and the separation of the aluminum-deposited paper B are also shown in FIG. The inlet roller 1 is located downstream of the separation roller 8.
0 is arranged. The inlet roller 10 is located above one of the embossing rollers 2,
To the embossing roller 2.

Further, a guide roller 12 is disposed between the inlet roller 10 and the emboss roller 2, and the guide roller 12 determines a winding angle α of the aluminum-evaporated paper B around the emboss roller 2. Here, the winding angle α indicates a rotation angle range from a rotation angle position at which the aluminum-evaporated paper B starts to adhere to the embossing roller 2 to a roller gap between the embossing rollers 2 and 4, that is, a nip.
As is clear from FIG. 5, the winding angle α is at least 90 ° or more.

Since the left and right separated aluminum vapor-deposited papers B are guided to the nip of the pair of embossed rollers 2 and 4, the embossed areas of these embossed rollers 2 and 4 also correspond to the left and right aluminum-deposited papers B. It is separated into right and left. That is, two rows of embossing areas are formed on the outer peripheral surfaces of the embossing rollers 2 and 4. Therefore, when passing through the nip between the pair of emboss rollers 2, 4,
The left and right aluminum-evaporated papers B are embossed over the entire surface as shown in FIG.

A cutting device 14 is disposed downstream of the pair of embossing rollers 2 and 4, and the left and right aluminum-evaporated papers B after embossing pass through the cutting device 14. At this time, the cutting device 14 is a cigarette. The aluminum-deposited paper piece C is cut for each length required for packaging the bundle. Further, the cutting device 14 forms a predetermined fold line or perforation on the aluminum-deposited paper piece C at the same time as cutting the aluminum-deposited paper B. Thereafter, the rows of the left and right aluminum vapor deposition pieces C are supplied to the corresponding packaging sections, and are provided for the packaging of the cigarette bundle conveyed on the transport path. That is, the cigarette wrapping machine of this embodiment is a double-track wrapping machine provided with two transport paths for a bundle of cigarettes.

According to the embossing apparatus described above, since the aluminum-evaporated paper B is in close contact with the outer peripheral surface of the embossing roller 2 at a winding angle α of 90 ° or more, the feeding speed of the aluminum-evaporated sheet A from the roll R Even when the speed is high, the left and right aluminum-evaporated papers B do not bend or vibrate when guided to the nip between the pair of embossing rollers 2 and 4. That is, the left and right aluminum-evaporated papers B are guided to the nip between the pair of embossing rollers 2 and 4 stably while being substantially guided on the outer peripheral surface of the embossing rollers 2. The aluminum-evaporated paper does not bend and the aluminum-evaporated paper does not flutter between the embossing rollers 2 and 4.
Excessive tensile force is not applied to the aluminum-evaporated paper B in the nip therebetween. Therefore, no wrinkles are generated on the aluminum-evaporated paper, and no deviation occurs in the running position. As a result, when passing through the nip, the aluminum-evaporated paper B can be formed in a stable embossed pattern on the aluminum-evaporated paper B without being shifted in the width direction. Can be performed accurately.
As a result, the embossing apparatus of the embodiment is suitable for increasing the speed of the cigarette packaging machine.

The present invention is not limited to the embodiment described above. For example, the embossing device of the present invention can be applied not only to a double truck cigarette packaging machine but also to a single truck packaging machine.

[0014]

As described above, according to the embossing device of the first aspect, when the inner packaging material is guided to the nip between the pair of embossing rollers, the inner packaging material is 90 ° on the outer peripheral surface of one of the embossing rollers. It is in close contact with the above winding angle. Therefore, even when the feeding speed of the inner packaging material is increased, the inner packaging material can smoothly pass through the nip without bending or fluttering, and can be subjected to embossing. Therefore, embossing can be stably performed without causing wrinkles or displacement of the running position on the inner packaging material. As a result, not only can the disturbance of the embossed pattern of the inner packaging material be prevented, but also the subsequent inner packaging material can be cut accurately,
It greatly contributes to speeding up of cigarette packaging machines.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram in which an embossing device according to an embodiment is wetted.

[Explanation of symbols]

 2, 4 emboss roller 10 inlet roller 12 guide roller (guide means) 14 cutting device. A Aluminum evaporated sheet B Aluminum evaporated paper R Roll

Claims (1)

[Claims] 1. The method according to claim 1, wherein the inner packaging material of the bundle of cigarettes fed from the roll is guided to a roller gap between a pair of emboss rollers.
In the embossing device of the cigarette wrapping machine for embossing the inner packaging material when passing through the roll gap, the inner packaging material is wound around one of the emboss rollers and guided to the roller gap, and the winding angle of the inner packaging material 9
An embossing device for a cigarette packaging machine, comprising a guide means for securing 0 ° or more.