JPS625587B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention applies to double-cut cigarettes, filtered cigarettes, tipped cigarettes, or uncut cigarettes, especially cigarettes that have been knocked off during the inspection process, or those that have been cut during the adjustment operation of a machine. The present invention relates to a method and apparatus for releasing and separating shredded tobacco from cigarettes and uncut cigarettes produced during the manufacturing process (hereinafter these cigarettes are collectively referred to simply as cigarettes).

In general, releasing and separating tobacco shreds from such cigarettes, recovering them, and reusing them is considered to be an extremely important issue for the effective use of expensive tobacco raw materials. Conventionally, devices proposed for this type of purpose include Japanese Patent Publication No. 43-23982 and Japanese Patent Publication No. 46-1982.
A device described in the specification of Publication No. 5040 is known.

That is, the device described in the former publication arranges irregularly supplied cigarettes in a vertical direction and passes them over a wet belt conveyor, wets a part of the cigarettes, presses them with rollers, and destroys the wet parts. This is a device that separates shredded tobacco using a vibrating sieve.
In addition, the device described in the latter publication has a plurality of fixed blades provided in a vertical cylinder, and a plurality of rotating blades are attached to a rotating shaft provided in the center at alternating positions with the fixed blades.
This device separates shredded tobacco while the cigarette falls between a fixed blade and a rotating blade.

However, although these devices are suitable for separating tobacco shreds from cigarettes that have been cut into short pieces of about 10 cm, they are suitable for separating tobacco shreds from cigarettes that have been cut into short pieces of about 10 cm. Separation of shredded tobacco from cigarettes called cigarettes, double-length cigarettes with a filter still attached to the center, etc. is extremely inefficient. Furthermore, the apparatus described in the former publication has difficulty in large-scale processing, and the quality of recovered shredded tobacco deteriorates due to wetness, and the wrapping paper and filter are broken into fluff, reducing the efficiency of separation from shredded tobacco. Furthermore, the device described in the latter publication is large in length, and the separation characteristics of shredded tobacco are not necessarily satisfactory.

In view of the drawbacks of the conventional devices, the present invention has been proposed to provide a method for removing shredded tobacco from cigarettes, which can efficiently separate and release shredded tobacco from cigarettes of any shape as described above, and which is compact and can be processed in large quantities. The purpose of this invention is to provide a release method and device.

EMBODIMENT OF THE INVENTION Below, this invention is demonstrated in detail based on the drawing which shows an Example.

FIG. 1 shows an overall explanatory diagram for implementing the present invention.

In the figure, reference numeral 1 denotes a vehicle for transporting cigarettes, which are objects to be processed, and 2 represents a device for reversing the vehicle 1 around a shaft 3 as a fulcrum. Reference numeral 4 denotes a cigarette supply section, the lower part of which is connected to a hopper 5, a cigarette lifting belt 6 disposed inside the supply section 4, and a conveyor belt 7 disposed at the bottom of the hopper 5. . A is a device according to the present invention which will be described in detail later.A hopper of the device A according to the present invention is connected to the top of a supply section 4, and cigarettes are supplied from the top of the supply section 4 to this hopper. A mixture of shredded cigarettes, wrapping paper, filters, etc. of cigarettes processed by the device A according to the method described later is allowed to fall naturally into a separating section 8 connected to the lower part of the device A. A vibrating screen 9 that reciprocates through an electric motor 10, an eccentric shaft 11, and a shaft 12 is extended within the separating section 8, and the vibrating screen 9 separates shredded tobacco from wrapping paper, filters, and the like. At the end of the vibrating screen 9, there are provided an outlet 13 for cutting tobacco, which communicates with the lower duct 8a of the sieve 9, and an outlet 14, which communicates with the upper duct 8b, for wrapping paper, filters, etc. 15 is a dustproof hood formed above the sieve of the separation section 8; 16 is a dust removal duct; 17 is a pedestal for supporting the vibrating sieve 9, the electric motor 10, etc. of the separation section 8.

FIG. 2 shows a schematic vertical cross-sectional view of the tobacco shredding release device A of the present invention, and FIG. 3 shows a cross-sectional view taken along the line AA in FIG.

In the figure, reference numeral 18 denotes an open cylinder formed into a vertical cylindrical shape, the upper part of which is closed by a top plate 21 except for the openings of the supply hopper 19 and the air introduction pipe 20. Inside the supply hopper 19, there is an aerodynamic hopper 24 in which a plurality of rotary vanes 22 are attached around a shaft 23, and the rotary vanes 22 are rotated by a rotation mechanism (not shown) in contact with a cylindrical inner wall whose top and bottom are open. Furthermore, a damper 25 is rotatably mounted in the air introduction pipe 20 using a manual lever (not shown) or the like.

A rotating shaft 26 is connected to the top plate 21 in the center of the release cylinder 18.
and bearings 28 and 2 fixed to the lower support frame 27
9, and is rotated at variable speeds via a pulley 31 and bearings 28, 29 by a multi-speed variable electric motor 30 placed on a top plate.

A plurality of (six in the figure) distribution disks 32 are mounted on the rotating shaft 26 at appropriate intervals. A plurality of vertically standing dispersing blades 33 (six in the figure) are radially provided on the periphery of each dispersing plate 32. The shape of the dispersion vane 33 is a rectangular plate-like body with a taper 34 on one side, and the dispersion vane 33 is attached to the dispersion disk 32 by screwing or the like so that its attachment position can be slightly varied in the radial direction. The appropriate number of dispersion blades 33 to be mounted on the dispersion board 32 is normally 3 to 6, and the number of dispersion blades 33 to be mounted on the dispersion board 32 is changed between the upper and lower dispersion boards, and the number of dispersion blades to be mounted as the dispersion board moves to the lower stage. may be decreased.

Above the periphery of each distribution plate 32, a chute 35 with an inclined surface extending from the inner peripheral surface of the release tube 18 toward the center of the distribution disk is installed. A plurality of release plates 37 are fixedly attached at appropriate intervals, and on the outer periphery of each distribution plate 32, a plurality of release plates 37 are fixedly attached with a large number of protrusions 36 in a direction perpendicular to the inner circumferential surface. On the other hand, each release plate 3 is arranged in a ring adjacent to the shape gradually expanding outward along the rotation direction of the distribution plate 32 (in the direction of the arrow in FIG. 3).
The gap between the adjacent starting end and ending end of 7 is the opening 38
is formed. Although four release plates 37 are shown in the drawing, two to six or more release plates 37 may be provided. In addition, the periphery of the distribution plate 32 and the release plate 3
Although the distance from the opening 38 differs between the starting end and the ending end of the release plate, it is preferable that the average width is about 25 cm, and the width of the opening 38 is about 20 cm. In addition, it is preferable to use a round bar with a diameter of about 6 to 18 mm for the protrusion 36 attached to the inner peripheral surface of the release plate 37, but as shown in the partial plan view of the release plate 37 in FIG. Alternatively, the protrusion 36 may have a semicircular cross section or a protrusion of any other suitable shape. However, it is desirable that the surface of the upper protrusion be rounded to prevent excessive crushing of the object to be processed. The mounting interval between these protrusions 36, 36a is usually 10 to 50 mm.

Each dismantling plate 37 is fixed by means such as being clamped between an annular plate 39 provided around the periphery of the distribution plate 32 and a support frame 40 that supports the chute 35. The uppermost stage of the support frame 40 is directly fixed to the release cylinder 18, and the support frames 40 from the second stage onwards are fixed to the release cylinder 18.
It is fixed to the inner circumferential surface of the release cylinder 18 at an appropriate interval by supporting members 41-1 which are provided so as to be separated from each other in the circumferential direction. Between the lower surface of the support frame 40 and the outer peripheral edge of the upper surface of the chute 35,
A separation cylinder 41 having a large number of openings of 3 mm to 7 mm is provided concentrically inside the release cylinder 18, and the separation cylinder 4
A numeral 42 is formed by a support member 41-1 for falling tobacco shreds, which is separated between the tobacco pipe 1 and the release cylinder 18.

A distribution plate 32 and a release plate 37 having the above configuration,
The chute 35 and the like are installed in multiple stages, for example, 3 to 6 stages, at approximately equal intervals on the rotating shaft 26. Dispersion board 3
When the number of stages in step 2 is increased, the proportion of shredded tobacco and the proportion of wrapping paper and filters mixed into the shredded tobacco tend to increase slightly, but on the other hand, the recovery rate of shredded tobacco tends to increase markedly.

43 is an outlet chute provided on the lower inner periphery of the release cylinder 18 and below the lowest dispersion plate 32; 44 is a seal communicating from the outlet chute 41 to the separating section 8;
Reference numeral 45 is a support supporting the release cylinder 18.

Next, the operation of the tobacco shredding release device of the present invention having the above structure will be explained.

The above-mentioned defective cigarettes are fed to the supply hopper 1 from the upper part of the scraping belt 6 of the supply section 4 shown in FIG.
9 and is dropped into the center of the uppermost dispersion plate 32 via the chute 35 while the supply amount is adjusted by the rotary blade 22 of the air transporter 24. The distribution disk 32 is a rotating shaft 2 rotated by an electric motor 30.
6 and rotated from 400 to 800 rpm. Dispersion board 3
As the rotation speed of No. 2 increases, the tobacco shred recovery rate increases, but there is also a tendency for the shredded tobacco percentage to increase. Further, the appropriate rotational speed varies depending on the number of stages of the dispersion plate attached to the rotating shaft, but for example, in the case of six stages, good results can be obtained in the range of 500 to 600 rpm.

The cigarettes dropped onto the center of the dispersion plate 32 are dispersed by the rotation of the dispersion blades 33, and while being rotated along the release plate 37, they collide with the ridges 36 of the release plate, and the shredded tobacco is broken into the wrapping paper and the filter. be separated and released from In this process, the cigarettes from which the shredded tobacco has been partially released are released from the opening 38 of the release plate 37 to the outside of the release plate, and while rotating on the inner circumferential wall of the separation tube 41 and the surface of the chute 35, the cigarettes are placed in the lower dispersion plate. The chopped tobacco is dropped to the center, but at this time, the released chopped tobacco is taken out from the opening of the separation tube 41 to the falling passage 42 and dropped to the lower chute 43 without repeating the next release action. . The cigarette, filter, and wrapping paper that did not pass through the openings are subjected to the same releasing action again, and while they reach the lowermost distribution plate, the shredded tobacco is almost completely separated and released from the wrapping paper and filter. .

The swirling motion of the cigarette inside the release tube 18 can be adjusted as appropriate by adjusting the rotational speed of the distribution plate 32, as well as by changing the opening degree of the damper 25 of the air introduction pipe 20 and adjusting the amount of air introduced. be.

Chopped tobacco separated from cigarettes is
The tobacco falls into the separating section 8 through the lower chute 43 in a mixed state with the wrapping paper pieces and the filter pieces, and is separated by the vibrating sieve 9 into shredded tobacco, wrapping paper pieces, and filter pieces. The separated tobacco shreds are taken out from the outlet 13.
From there, the wrapping paper pieces and the filter pieces are taken out from the outlet 14, respectively.

Since the present invention comprises the method and structure described in detail above, the separation and release of shredded tobacco from cigarettes is carried out gradually, and excessive crushing of shredded tobacco, wrapping paper, filter fibers, etc. is prevented.
The mixing ratio of wrapping paper and filter into shredded tobacco is minimized, and the recovery rate of shredded tobacco from defective cigarettes is as high as 95 to 99%. Furthermore, according to the device of the invention,
In the conventional technology, it is possible to smoothly separate and release so-called stick-rolled cigarettes, which have a low tobacco cut recovery rate, and double-length cigarettes, and it is also suitable for processing large quantities of cigarettes.

[Brief explanation of the drawing]

FIG. 1 is an overall explanatory diagram for implementing the present invention,
FIG. 2 is a schematic vertical sectional view of the tobacco shredding release device of the present invention, FIG. 3 is a sectional view taken along the line AA in FIG. 2, and FIG. 4 is a partial plan view of another embodiment of the release plate. 4... Supply section, 6... Scraping conveyor, 8... Separation section, 9... Vibrating sieve, 18... Release tube, 19
... Supply hopper, 20 ... Air introduction pipe, 21 ...
Top plate, 22... Rotating blade, 24... Aerotsuka,
25...Damper, 26...Rotating shaft, 32...Dispersion plate, 33...Distribution vane, 35...Chute, 36
... protrusion, 37 ... release plate, 41 ... separation tube.

Claims (1)

[Scope of Claims] 1. Cigarettes to be released into shredded tobacco are placed on the topmost dispersing disc of a rotating dispersing disc that is arranged in multiple stages vertically within a release cylinder and has dispersing blades radially arranged around the circumference. The cigarettes are supplied and scattered by impact with the dispersing blade, and a plurality of release plates are provided around the outer periphery of each dispersing plate, the terminal end of which is set outward from the starting end along the rotating direction of the dispersing plate. The cigarette is rotated along the release plate which is arranged in a ring adjacent to the shape of the cigarette, and while the cigarette is being rotated, it collides with the protrusions attached to the inner peripheral surface of each release plate to remove some of the shredded tobacco from the cigarette. The partially released cigarette is taken out from the opening between the starting end and the ending end of the adjacent release plate, and is released by a separation tube provided between the release tube and the opening. Separate the shredded tobacco from the unreleased shredded tobacco,
The unreleased shredded tobacco is dropped onto the lower rotary dispersion plate, and after repeating the method of releasing the shredded tobacco from the cigarettes several times in the same manner as described above, the shredded tobacco separated by the separation tube and the shredded tobacco on the bottom stage are separated. 1. A method for releasing shredded tobacco from a cigarette, which comprises separating the shredded tobacco from a wrapping paper or a filter using a separation means from a processed article taken out from an opening of a release plate. 2. A rotating shaft is vertically supported in the center of the open cylinder with a supply hopper installed at the top, and distributing plates with multiple separation blades radially arranged around the rotating shaft are arranged in multiple stages. Then, a plurality of release plates each having a plurality of protrusions attached to the outer periphery of each distribution plate in a direction perpendicular to the inner circumferential surface are arranged such that the terminal end thereof spreads outward along the rotational direction of the distribution plate with respect to the starting end. A separation cylinder is provided in a ring adjacent to the shape, and has a large number of openings between the release plate and the release cylinder except for the bottom stage, and is directed toward the center of each distribution plate below the lower end of the separation cylinder. A device for releasing shredded tobacco from cigarettes, characterized in that a chute having an inclined surface is provided, and a falling path for shredded tobacco separated by a separation cylinder is formed between the release cylinder, the separation cylinder and the outer periphery of the chute. .