JPH0126239Y2 - - Google Patents

Description

[Detailed description of the invention] "Technical field of the invention" This invention involves cutting the rod-like object into two halves in the transporting direction during the transportation process, and then creating a predetermined space between these halves. The present invention relates to a cutting/separating device for separating two halves from each other so as to leave a gap in the process of transporting a stick-like object, and particularly relates to a cutting/separating device suitable for a manufacturing system for dual-filter type filtered cigarettes.

``Technical background of the invention and its problems'' In a typical manufacturing system for filtered cigarettes, one filter tip and two cigarettes are wrapped with chip paper on a so-called winding machine, and then they are wrapped around each other. They are connected to each other, thereby obtaining two filtered cigarettes. Thereafter, the two filtered cigarettes are cut into individual filtered cigarettes by cutting the filter chip from the center.

The above-mentioned manufacturing system for filtered cigarettes is common to the manufacturing of plain type and dual type filtered cigarettes, and the supply of filter chips to the winding machine has conventionally been carried out by directing one long filter rod to the winding machine. This is done by transporting the filter rod, and during this transport process, cutting the filter rod into individual filter chips.

By the way, in order to manufacture a dual filter type filtered cigarette, it is necessary to manufacture the dual filter rod in advance. here,
As is clear from the above-mentioned procedure for supplying filter chips to the winding machine, in preparation for cutting into individual filter chips, the dual filter rod has plain filter sections and, for example, carbon filter sections arranged alternately in the longitudinal direction. It is necessary to wrap the paper and form it in advance. For this reason, manufacturing a dual filter rod is much more labor-intensive than manufacturing a single filter rod, that is, a plain filter rod or a carbon filter rod. The productivity of cigarettes is inferior to that of plain type filtered cigarettes. Furthermore, in order to manufacture a dual filter type filtered cigarette, there is a problem in that a separate device for manufacturing the dual filter rod is required.

Due to the above-mentioned circumstances, it is conceivable to obtain a dual type filter tip in the process of conveying the filter rod toward the hoisting machine. In the process of
This filter chip is further cut into two filter chip halves each having a length corresponding to two cigarettes, and in the subsequent transportation process, it is necessary to position a plain type filter chip between the filter chip halves. However, after cutting a filter chip into two filter chip halves, it is difficult to reliably separate the two filter chip halves from each other without damaging the filter chip halves during the transportation process. A cutting and separating device was desired.

``Purpose of the invention'' This invention was made to satisfy the above-mentioned needs.The purpose of this invention is to separate the rod-shaped object into two halves during the transportation process of the rod-shaped object, and then divide the rod-shaped object into two halves. To provide a cutting and separating device in the process of transporting stick-like objects, which can reliably separate the halves of these stick-like objects so that a predetermined interval exists between the bodies, and whose structure can be simplified. It is in.

"Summary of the invention and its effects" According to this invention, the rod-shaped object is conveyed while being accommodated in the conveyance groove. In this transportation process,
The rod-shaped object is cut into two halves by the cutter mechanism, and then these halves are sucked in opposite directions within the conveying groove by the suction air flow generated by the suction mechanism. According to
A predetermined gap is formed between the two halves. Further, in the conveyance path of the rod-shaped object, that is, the two halves, a separating guide is disposed downstream of the cutter mechanism in the conveyance direction and has a tapered shape toward the upstream side of the conveyance direction. The tapered tip of this separation guide relatively enters the gap between the two halves being conveyed, so that the distance between the two halves is determined by the width dimension of the separation guide. They will be separated from each other by a predetermined distance.

According to the above-mentioned cutting and separating device of this invention, a predetermined gap is formed in advance between the two halves obtained by cutting, even by suction by the suction mechanism. The tip of the separation guide can be smoothly guided to ensure the separation of the two halves without damaging them.

In addition, the cutting and separating device of this invention only requires that a cutter, a pair of suction parts in a suction mechanism for sucking the cut halves in the direction of each half, and a separation guide are sequentially arranged in the conveyance path of the rod-like object. This makes the structure extremely simple.

According to a preferred embodiment of this invention, the cutter of the cutter mechanism consists of a circular rotary cutter that is rotationally driven, and the above-mentioned pair of suction parts of the suction mechanism are arranged at the upstream end of the half body in the conveying direction. is arranged so as to overlap the peripheral edge of the rotary cutter when viewed in the conveying direction. With this configuration, after the rod-shaped object is cut into two halves, these halves can be
It will immediately be suctioned toward the corresponding suction part, but at this time, since the peripheral edge of the rotary cutter is positioned between the pair of suction parts, the suction action of each suction part on one half However, they do not adversely affect the suction action of the other halves.
Therefore, the halves after cutting are reliably separated by a predetermined distance by the pair of suction parts, thereby making it possible to reliably enter the gap between the halves by making the tips of the separation guide relative to each other. Become.

"Embodiment of the invention" An embodiment of the invention will be described below with reference to the drawings.

FIG. 1 shows part of a manufacturing system for manufacturing filtered cigarettes, particularly dual filter type filtered cigarettes. In this manufacturing system, the conveyance path of the filter rod as a bar-shaped object is composed of a plurality of conveyance drums, and FIG.
Only the transport drums 12, 14, 16 are shown.

A plurality of conveyance grooves 18 are formed at the same intervals on the circumferential surface of each conveyance drum 12, 14, 16, and each of the conveyance grooves 18 has a semicircular cross section capable of accommodating each filter rod F. ing. In the case of this embodiment, the length of the filter rod F is set equal to the length of one filter chip in a cigarette with a filter.

As is clear from FIG.
is disposed below the conveyance drum 12 so as to be in rolling contact with the conveyance drum 12, and the conveyance drum 16 is similarly arranged below the conveyance drum 14 so as to be in rolling contact with the conveyance drum 14. It is located in

Each of the conveyance drums is rotated by a drive mechanism (not shown), and here, the conveyance drums 12 and 16 are rotated clockwise as shown by arrows in FIG. The drum 14 is also rotated counterclockwise as indicated by the arrow. Furthermore, to explain the rotational drive of each conveyance drum, the conveyance drums 12, 14, and 16 are all rotated at the same circumferential speed, and are rotated while the conveyance grooves 18 of adjacent conveyance drums are aligned with each other. It is becoming more and more like this.

Furthermore, guides 20 are arranged on the outside of the transport drums 12, 14, and 16, respectively, along their circumferential surfaces. Since these guides 20 are publicly known,
Although the specific structure between each guide 20 and the conveyance drum is not shown in detail, each guide 20
is from the upper transport drum to the lower transport drum 14.
It has the function of transferring the filter rod F to and guiding the conveyance of the filter rod F as the conveyance drum rotates.

Therefore, the above-mentioned transport drums 12, 14, 16
In the conveyance path of filter rod F consisting of
First, the filter rods F are supplied by a loading mechanism (not shown) and received sequentially into the respective conveyance grooves 18 of the conveyance drum 12, and are conveyed as the conveyance drum 12 rotates. , 20, the paper is transferred from the transport drum 12 to each transport groove 18 of the transport drum 14. Similarly, the filter rods F on the conveyance drum 14 are conveyed by the rotation of the conveyance drum 14, and transferred to the respective conveyance grooves 18 of the next conveyance drum 16 by the action of the guides 20, 20. As the transport drum 16 rotates, it is transported toward a subsequent processing device.

A rotary cutter 22 is arranged outside the conveyance drum 14 as a cutter mechanism. The rotary cutter 22 has a circular shape, and its outer peripheral edge is formed as a cutting blade. A part of the outer peripheral edge of the rotary cutter 22, that is, a part of its circular blade passes through the guide 20 of the transport drum 14 and enters into the transport drum 14. That is, as shown in FIG. 2, a circumferential groove 24 that crosses each conveying groove 18 is formed on the circumferential surface of the conveying drum 14, and a rotary cutter 2 is inserted into the circumferential groove 24.
A part of the circular cutting blade No. 2 has been penetrated. The penetration depth of the circular cutting blade into the circumferential groove 24 is set to be sufficiently deeper than the groove depth of the conveying groove 18. It goes without saying that the rotary cutter 22 can be rotated in one direction by a drive mechanism (not shown). Therefore, when the above-mentioned rotary cutter 22 is rotating, the filter rods F in each conveyance groove 18 are conveyed as the conveyance drum 14 rotates, and when they pass through the rotary cutter 22, each filter rod F is rotated. The cutter 22 cuts the filter chip into two halves Fa and Fa.

Here, referring to FIG. 2, the transport drum 14
A pair of guide rails 26, 26 extending along the circumferential surface of the conveyance drum 14 are fixed to the inner peripheral surface of the guide 20 so as to sandwich the rotary cutter 22 therebetween. In addition, in FIG. 2, the transport drum 1
No. 4 guide 20 is omitted from the illustration. The pair of guide rails 26, 26 have mutually opposing surfaces formed as guide surfaces on the circumferential surface of the conveyance drum 14, and a portion of these guide surfaces is located upstream of the rotary cutter 22 in the conveyance direction. is the first guide surface 28, 28 for filter rod F.
On the other hand, the rotary cutter 22
The downstream part is the filter chip half Fa.
It is formed as second guide surfaces 30, 30 for use. In the first guide surfaces 28, 28, a portion 28a on the side far from the rotary cutter 22 is located on the first guide surface 28, 28.
8 and 28 are inclined so that the interval between them increases toward the upstream side in the conveyance direction, and the portion 28b close to the rotary cutter 22 is
The distance between the guide surfaces 28, 28 is set to be constant. That is, the portions 28b, 28b of the first guide surfaces 28, 28 are parallel to each other with the above-mentioned circumferential groove 24 as the center.

On the other hand, the second guide surfaces 30, 30 are formed symmetrically with respect to the corresponding first guide surfaces 28, 28 with the rotation axis of the rotary cutter 22 as the center. That is, the second
The guide surfaces 30, 30 have mutually parallel portions 30b, 30b and inclined portions 30a, 30a, respectively, from the rotary cutter 22 side.

Further, in the second guide surfaces 30, 30, portions 30b, 30b located on the downstream side when viewed in the conveying direction
Suction portions 32, 32, which constitute a part of the suction mechanism, are formed from the end portions to portions 30a, 30a, respectively. Each suction part 32 is, for example, an opening 3 extending along the conveyance direction on the guide surface of the guide rail 26.
4, and the opening of this opening 34 is covered with a porous lid 36. Each suction section 32 is connected to a vacuum pump P via a suction passage, so that external air is sucked toward each suction section 32. Furthermore, in each suction section 32, the upstream end in the conveyance direction overlaps the peripheral edge of the rotary cutter 22 when viewed in the conveyance direction, as schematically shown in FIG.

Therefore, if the above-mentioned pair of guide rails 26, 26 and suction parts 32, 32 are arranged in the middle of the conveyance path, the cutters will be conveyed toward the rotary cutter 22 as the conveyance drum 14 rotates. The filter rod F has a pair of guide rails 26, 26.
It is guided by the first guide surfaces 28, 28 at and guided to the rotary cutter 22. As a result, when the filter rod F passes through the rotary cutter 22, it is cut into two filter tip halves Fa and Fa having the same length. After that, these filter chip halves Fa, Fa are further conveyed and when they reach the area of the suction parts 32, 32 formed on the pair of guide rails 26, these filter chip halves Fa, Fa are sucked into each suction part 32. Under the action of the suction air flow, the air is sucked towards the corresponding guide rail 26 , that is, the second guide surface 30 of the guide rail 26 . Here, the portion 30a of the second guide surface 30 is located at the circumferential groove 2 facing downstream in the conveying direction.
4, the filter chip halves Fa and Fa obtained by cutting are separated by a predetermined distance between these filter chip halves Fa and Fa in the conveyance groove 18 due to the above-mentioned suction action accompanying the conveyance. They will be spaced apart so that a gap exists. In addition, the filter tip halves Fa and Fa are connected to each suction section 32.
Since the peripheral edge of the rotary cutter 22 still exists between the filter tip halves Fa when it starts to receive the suction action from the filter tip half Fa, each filter tip half Fa is It will definitely be sucked in. In other words, the suction action by each suction section 32 acts only on the corresponding filter tip half Fa, and does not adversely affect the suction of the other filter tip half Fa.
As a result, the filter chip halves Fa and Fa are reliably separated.

The filter chip halves Fa, Fa separated as described above are further transported as the transport drum 14 rotates, and transferred from the transport drum 14 into the transport groove 18 of the transport drum 16, and then,
It is transported as the transport drum 16 rotates.

A separation guide 38 extending along the conveyance direction is fixed to the inner peripheral surface of the guide 20 of the conveyance drum 16, as shown in FIG. Furthermore, the second
In the figure, the guide 20 of the transport drum 16 is not shown. The separation guide 38
The end portion of the separation guide 38 located at the center on the circumferential surface of the separation guide 38 and located on the upstream side in the conveyance direction is formed into a tapered shape toward the upstream side in the conveyance direction. Side surfaces 38a, 38a in the downstream region are formed parallel to each other. In this embodiment, the distance between the side surfaces 38a, 38a of the separation guide 38 is set to be slightly larger than the length of the filter rod F.

Therefore, if the separation guide 38 described above is provided, the gap between the filter chip halves Fa, Fa, which are transferred from the conveyance drum 14 into the conveyance groove 18 of the conveyance drum 16 and conveyed, will be filled with the above-mentioned The tips of the separated separation guides 38 are relatively advanced, and the filter chip halves Fa are conveyed and guided by the corresponding side surfaces of the separation guides 38.
Furthermore, the gap will be expanded. As a result, the side surface 38a of the separation guide 38,
They will be separated from each other by a gap defined by the distance between 38a.

In addition, the above-mentioned filter rod F is a carbon type filter rod, and the separated filter chips Fa and Fa are connected on the conveyance drum 16 or in the conveyance path downstream of the conveyance drum 16. If a plain type filter rod is supplied and positioned at the same time, dual type filter chips can be obtained on the same conveyance route, and then the dual type filter chips can be supplied toward the hoisting machine. I can do it.

[Brief explanation of drawings]

The drawings show one embodiment of this invention; FIG. 1 is a side view showing a part of a row of conveying drums constituting the conveying path of the filter rod, and FIG. FIG. 3 is a schematic diagram showing the arrangement relationship between the rotary cutter and the suction section. 12, 14, 16... Conveyance drum, 18... Conveyance groove, 22... Rotating cutter, 26... Guide rail, 3
2... Suction part, 38... Separation guide, P... Vacuum pump.

Claims (1)

[Claims for Utility Model Registration] 1. A product that defines a transportation route for a rod-shaped object, has a plurality of transportation grooves that are spaced at predetermined intervals along this transportation route, and that accommodates the rod-shaped article so as to be movable in its longitudinal direction. There is a conveyance mechanism that conveys the rod-like object by moving it along the conveyance groove conveyance path, and a conveyance mechanism that is arranged in the middle of the conveyance path and cuts the conveyed rod-like object in the conveyance direction within the conveyance groove. A cutter mechanism that is made into two halves by the cutter mechanism, and a cutter mechanism that is disposed in the middle of a conveyance path located downstream of the cutter mechanism in the conveyance direction over a predetermined length in the conveyance direction so as to sandwich this conveyance path. By sucking air from each suction part, the two halves being conveyed are sucked toward each suction part in the conveyance groove and separated from each other by a predetermined gap. and a suction mechanism disposed along the conveyance path located on the downstream side of the suction mechanism in the conveyance direction, relative to the gap between the two halves being conveyed. Conveyance of a stick-like object characterized by comprising a separating guide having a tapered shape toward the upstream side in the conveyance direction for entering the conveyance groove and separating these halves by a predetermined distance in the conveyance groove. Cutting and separation equipment in the process. 2. The cutter mechanism includes a circular rotary cutter that is rotationally driven to cut a rod-shaped object, and the pair of suction parts have ends located on the upstream side when viewed from the conveyance direction, each of which is attached to the rotary cutter. The cutting and separating device in the process of conveying a rod-shaped object according to claim 1, wherein the cutting and separating device overlaps the peripheral edge in the conveyance direction.