RU2443373C2 - Production of tobacco core with cylindrical pipe extending through it - Google Patents

Abstract

FIELD: tobacco industry.

SUBSTANCE: method for production of cigarettes involves supplying pipes into the device for a tobacco core manufacture from a feeder, supplying tobacco into the device through an upward flow chamber placed under porous tapes. One forms a tobacco column on each porous tape. One supplies paper under the tobacco columns with the tobacco placed on the paper being relocated and around a hollow cylindrical pipe. The tobacco is enveloped in the paper by means of a fitting to form hollow enveloped cores containing a pipe passing through the tobacco core.

EFFECT: tobacco product quality enhancement due to more effective production of a hollow passage in the tobacco core.

5 cl, 29 dwg

Description

The invention relates to methods for the manufacture of cigarettes and to devices for their implementation, and more particularly to the manufacture of cigarettes with a Central cylindrical tube.

Known devices for the manufacture of cigarettes, which contain a feeding section with a hopper from which tobacco is supplied, and a core-forming section in which the tobacco is wrapped in paper. The porous tape through which air is sucked in is transported on two wheels, and the tobacco is fed to the porous tape through a tobacco supply chamber. When moving the porous tape over the chamber, a column of tobacco is formed on the porous tape. The tobacco column moves along with the tape and is held by the front and rear guides. In addition, a column of tobacco is passed through a pair of cutting discs, where the column is trimmed to the desired volume or weight. Then the cropped column of tobacco passes under the left wheel, where it is scraped from the tape with a scraper. At the same time, paper fed by the conveyor belt is pulled under a column of tobacco in a section of the tobacco rod forming apparatus.

The scraper, flat at the inlet and concave at the outlet, forms the top of the tobacco column into a cylindrical shape. At the same time, the paper and the conveyor belt under the tobacco column are introduced into the headset supporting the conveyor belt and paper. When the column of tobacco leaves the scraper, it passes under the foot supporting the cylindrical shape of the top of the column of tobacco. When moving a column of tobacco through the area of the foot, the conveyor belt and paper under the column of tobacco using a headset around the column of tobacco to give the bottom half of the column of tobacco a cylindrical shape.

At this point, the column of tobacco has already been converted into a tobacco cylinder. Using the front and rear guides and the flexors attached to the headset, the conveyor belt is pressed and the paper is held tightly to the tobacco cylinder. When the tobacco cylinder leaves the foot, the back flexor causes the tape and paper to bend around the top of the tobacco cylinder. The tobacco cylinder and paper continue to move further through the headset, while applying glue under the front edge of the paper. The front fold then folds the front edge of the paper onto the rear edge of the paper when the back fold releases the conveyor belt.

There is still a need for a more efficient method for creating a hollow passage in a tobacco rod and for a method for manufacturing a tobacco rod with a hollow cylindrical tube extending through the tobacco rod.

The present invention is intended for periodically introducing and accurately positioning objects in a tobacco rod made by a device for producing tobacco rods, equipped with a vacuum conveyor for rods having two (or more) ways.

In one embodiment, the present invention provides a method of manufacturing cigarettes, comprising making conveyor wheels so as to allow two porous belts to move parallel to each other, adding a rear guide, a front guide and a central dividing guide to the conveyor to form a separate tobacco column on each porous belt, serving tobacco in chambers with an upward flow, located under the porous tapes during the movement of these tapes, the formation of tobacco columns on each porous ribbon, cutting tobacco columns with rotary cutting discs to obtain the exact weight of the tobacco, moving the trimmed tobacco columns along the porous tapes until the tobacco columns reach the drive wheels, feeding paper under the tobacco columns near the drive wheels and separating the excess tobacco from the porous ribbon using a scraper placing tobacco on movable paper and around a hollow cylindrical tube, moving tobacco, tube and paper into the headset, giving the tobacco, tube and paper cylindrical shape, etc. motion of the rod of cylindrical shape through flexor and a glue applicator, which seals the paper, making the finished tobacco rod to cut and retrieve individual tobacco rods.

Another embodiment of the present invention is a method of manufacturing cigarettes, including cutting a tube of a certain length and loading the tube into a feeder, grabbing the tube using a vacuum drum and moving the tube down vertical pipelines using friction belts, moving forward the tube lengths with the help of an advancement wheel, which transporting the tube, separating the tube with a friction wheel to create intervals, laying the tube with coordination with the tabs on the tape and the introduction of ubki to headsets and foot.

Another embodiment of the present invention is a method of manufacturing cigarettes, comprising feeding the tube piece by piece to a vertical pipe by opening and closing the cam-driven distribution flap, moving the pipe down to the vertical pipe using vertical conveying belts until the pipe is gripped in the feeder-holder, grabbing the tube using a pivotally mounted tube holder located on the transfer drum, lowering it in Nitrogen and tube release under the leveling tape.

Another embodiment of the present invention is a method of manufacturing cigarettes, comprising feeding the tube piece by piece to a vertical pipe by opening and closing a cam-driven distribution flap, moving the pipe down to the vertical conveying belts until it rests on the pipe supports to support the pipe in the required position, or in an inclined position, towards the headset, moving the pipe in a horizontal direction, in the direction of tobacco flow, with with a horizontal pusher and grabbing the tube with a leveling tape.

Another embodiment of the present invention is a method for manufacturing cigarettes, comprising gripping a tube from a feeder using a vacuum drum, transferring the tube to a receiving drum with a vacuum or mechanical holding mechanism, rotating the tube holder of the receiving drum at least 90 ° in a horizontal plane and at least 180 ° in the vertical plane and the placement of the plug under the leveling synchronized tape inside the headset.

Another embodiment of the present invention is a method of manufacturing cigarettes, comprising gripping the tube from the feeder with a vacuum drum, moving the tube at least 180 ° in the vertical plane and moving down to the vertical pipe with compressed air until it is laid on the supports for supporting the pipe in the desired position or tilted to the headset and moving the pipe in the horizontal direction to the tobacco stream by means of a horizontal pusher until it is caught leveling s synchronized tape.

The invention is described in more detail below with reference to the drawings, in which:

1A is an exemplary embodiment of the present invention,

Figv is a block diagram of a method according to the invention,

Figure 2 - scheme of the supply of tobacco right upward flow,

Figure 3 - scheme of tobacco supply by the left upward flow,

Figure 4 - option with cutting tobacco columns,

5 is a variant using a wheel,

6 - tobacco rod with a Central mandrel,

7 is a finished tobacco rod with a Central mandrel,

Fig - embodiment of the finished tobacco rod with a hollow core, in which the tube extends from one end of the tobacco rod to the other end thereof,

Fig.9 is an exemplary embodiment of the finished tobacco rod with a hollow core, in which both ends of the tube are closed by bending,

10 is a diagram of an embodiment of a method in which hollow tubes of a predetermined length are periodically supplied to a cigarette making machine by a feed drum,

11 - tobacco rod double length with pipes inside it, spaced from the ends of the tobacco rod double length,

Fig - tobacco rod, cut in half,

Fig - additional details of a variant of the method according to the invention,

14A is an exemplary embodiment of an alternative apparatus of the invention for periodically feeding hollow tubes of a predetermined length into a tobacco rod forming machine,

Fig.14B is a block diagram of a variant of the method implemented in an alternative embodiment of the device of Fig.14A,

Fig - additional details of a variant of the method according to the invention,

Fig - additional details of a variant of the method according to the invention,

Figa is another embodiment of the invention,

Figv is an exemplary block diagram of a method according to the invention,

Fig.17C is another exemplary flowchart of the method according to the invention,

Fig.17D is another exemplary block diagram of a method according to the invention,

Fig. 18 is a cam operated camshaft flap.

Fig.19 is an enlarged detail of Fig.18,

Fig.20 is a diagram of the laying of tubes with alignment,

Fig.21 is a section 21-21 in Fig.20,

Fig is a schematic view of a device for laying a tube with a vacuum drum and a horizontal pushing cam,

23 is a pushing cam,

Fig - mechanism of an asterisk or ribbon on an enlarged scale,

25 is a schematic view of a tube-laying apparatus with a vacuum drum and a host drum.

Figures 1 through 9 show an endless hollow pipe that is fed into a tobacco rod forming machine, where tobacco is placed around the pipe. Specifically, FIG. 1A shows an embodiment of a method according to the invention in which a process called “turning” is performed, in which a mandrel is used. 1, a pin 39 is added to the end of the center guide 41. The pin 39 extends into the tobacco stream between the tab 12 and the headset 17. The pin 39 serves as a mandrel around which the tobacco flows between the tab 12 and the headset 17. In addition, tobacco is gathered around rod / mandrel 39 and is formed into a cylindrical shape using a headset 17 and tab 12. The rod / mandrel 39 is usually solid and has a cylindrical shape. When the tobacco leaves the core / mandrel 39, a channel remains in the tobacco cylinder.

The device of FIG. 1A also includes a central guide 41, a rear guide 50 and a front guide 48, which surround the cut tobacco columns 51, 52. The porous tapes 27, 28 are located under the wheel 25. FIG. 1A also shows the shaft / mandrel 39, paper 23 and porous conveyor belts 27, 28 on wheels 25, 37.

In addition, FIG. 1A shows: an adhesive applicator 11, flexors, and a rotatable cutting disc 4. In addition, FIG. 1A shows tobacco feed streams, upflow chambers — right 45 and left 43, and porous tapes 27, 28 through which the air flows shown by arrows 29, 31, 33 and 35 can pass. Sections 2-2 to 7-7 in FIG. 1A are shown in detail in FIGS. 2-7, respectively, and are further explained below.

FIG. 1B shows an exemplary method implemented using the embodiment of the device shown in FIG. 1A. As shown in FIG. 1B, step 1001 is to make the drive wheels of the conveyor device so that two porous belts move parallel to each other. Step 1003 consists of adding a rear guide, a front guide and a central dividing guide to the conveyor to form individual tobacco columns on each porous belt. At 1005, tobacco is supplied to upflow chambers for each of the porous tapes. At 1007, two tobacco columns are formed on porous tapes. At 1009, tobacco columns are cut with two rotatable cutting discs to ensure the exact weight of the tobacco in the tobacco rod. At 1011, the cut tobacco columns are moved along the porous tapes until they reach the drive wheels. Step 1013 consists in feeding paper under the tobacco columns at the drive wheels and separating the tobacco from the porous tapes using a scraper. Step 1015 consists of placing tobacco on paper to be moved and around an endless hollow tube. At 1017, tobacco, pipe and paper are inserted into the headset. Step 1019 includes forming a tobacco pipe and paper into cylindrical shapes. At 1021, the formed cylindrical rod is passed through the flexors and under the adhesive applicator, where the paper is sealed. At 1023, the manufacture of a tobacco rod prepared for cutting into individual tobacco rods is completed.

FIGS. 2 and 3 show tobacco feed stream 67 and feed chambers for right upstream 65 and left upstream 66, respectively. The front rail 51, the center rail 55 and the rear rail 57 surround the tobacco posts 63, 64. In addition, the hollow channel 53 passes through the center rail. Porous tapes 27, 28 are located below the vacuum chambers 50, 59, air flows 52, 54, shown by arrows, pass through the tapes.

4, the method is shown at the point where the tobacco posts 63, 64 are trimmed. The tobacco stream 73 and air flows 52, 54 are shown by arrows. The front guide 51, the central guide 55 and the rear guide 57 cover the tobacco posts 63, 64. Porous tapes 52, 54 are located below the vacuum chambers 50, 59, air flows 52, 54 pass through the tapes, as shown by arrows. Figure 4 also shows the front disc 60 and the rear disc 58.

Figure 5 shows the present embodiment of the invention in which the wheel 25 is used. In addition, Figure 5 shows a front guide 51, a central guide 55 with a hollow channel 53 and a rear guide 57 covering the cut tobacco columns 63, 64. Porous tapes 27, 28 are located under the wheel 25. Figure 5 also shows the central guide-mandrel 72, paper 62 and porous conveyor belts 27, 28, each of which is located under the wheel 25.

FIG. 6 shows a tobacco rod 82 with a hollow central mandrel 91. In particular, FIG. 6 shows a front flexor 79, a rear flexor 87 lying on top of the headset 89. FIG. 6 also shows paper 81, tab 83, transporting belt 85, which (all) are located in the headset 89.

7 shows a tobacco rod 82 with a hollow central mandrel 91. In particular, FIG. 7 shows a front flexor 79, a rear flexor 87 lying on top of the headset 89, and a conveyor belt 85 with a sealed tobacco rod 82 located inside the headset 89 .

On Fig shows an exemplary embodiment of the finished tobacco rod with a hollow core, in which the tube extends from one end of the tobacco rod to the other end. In particular, FIG. 8 shows a hollow core tobacco rod comprising paper 93, an inner hollow tube 95, and tobacco regions 97 without tight ends.

Figure 9 shows an exemplary embodiment of the finished tobacco core with a hollow core without tight ends. In particular, FIG. 9 shows a hollow core tobacco rod comprising paper 93, an inner hollow tube 95, and tobacco regions 97, the opposite ends of the inner hollow tube 95 being closed by compression.

Figure 10 shows an alternative embodiment in which hollow tubes of a given length are periodically fed into the tobacco machine by a feed drum. In particular, in this embodiment, the device comprises an insertion drum 149 and insertion feeder 151 supplying them to the device for manufacturing the sealed tobacco rod 115. The device in this embodiment includes a guide 139 for receiving the insert, a guide 155 for the conveyor with protrusions, a vacuum (suction) conveyor 153 for transporting the rods, further comprising a flexible conveyor with protrusions, double wheels 125 for a conveyor with protrusions, double wheels 137, porous belts 127, left chamber 1 43 with an upward flow, the right chamber 145 with an upward flow, a vacuum chamber with an air stream 129, 131, 133, 135, a conveyor belt 119, a front guide, a sectional central guide and a rear guide, a headset 117, flexors 113, an adhesive applicator, paper 123 and clipping disk.

Double wheels 125 (see FIG. 10) for a flexible conveyor with protrusions comprise an additional wheel by means of which this conveyor is driven. The objects ("inserts") to be introduced into the device are supplied by a feeding system comprising a drum 149 for feeding the inserts and a feeder (hopper) 151 for feeding the inserts. Alternatively, other types of well-known feeding means can also be used. On Fig further shown in more detail the device according to the invention. In particular, FIG. 13 shows a feeder 169 for feeding inserts, inserts 167, a guide 171 for a flexible conveyor with protrusions, a flexible conveyor 173, protrusions 175, a drum 177 for feeding the inserts and an inserted object (insert) 179.

As shown in FIG. 11, this embodiment allows the manufacture of a double length tobacco rod with objects inserted into it at intervals. The tobacco rod comprises paper 161, tobacco regions 163 and an inserted object 165, which may be a hollow cylindrical tube or the like.

In addition, in this embodiment, the individual tubes may be spaced apart from each other and when cutting the tobacco rod into double length rods, the tubes are spaced inward from the ends of the tobacco rod. When cutting in half a double rod, each tobacco rod obtained has the form shown in FIG. In particular, FIG. 12 shows a tobacco rod comprising paper 161, tobacco regions 163 and an inserted object, for example, in the form of a hollow tube 165 or the like.

Figures 14-16 show an alternative apparatus for periodically feeding hollow tubes of a given length to a tobacco rod manufacturing apparatus. In particular, FIG. 14A shows a device comprising a wheel and a belt 193 for feeding tubes, bends 195, a headset, a foot 197, a leveling belt, a vacuum conveyor for transporting rods containing two belts, a friction wheel for spacing, a sleeve, a tool 189 paper feed for tobacco rods and paper 191. In addition, the apparatus shown in FIG. 14A further comprises a tobacco hopper 201, a drive wheel 203, a feeder 205, a feed drum 207, a conveyor belt 209, and a horizontal pusher.

In the above embodiment, the tube is cut into segments of a certain length and loaded into the feeder 205, they are captured by a vacuum drum and moved down the vertical pipe using friction conveyor belts 209. In the lower part, the feeder 205 contains a trough guide and a horizontal pusher that pushes the segments forward. tubes under the drive wheel 203, with which they are transported through the hopper 201 with tobacco to a vacuum (suction) conveyor for transporting rods containing Wa belt. Further downstream, the tubes are moved apart from each other (for example, by spacing between the individual tubes) using a friction wheel to spacing. At this point, the speed of the tube slightly exceeds the speed of the conveyor for transporting the rods, which allows them to be stacked in accordance with the protrusions on the tape before being inserted into the headset and foot area 197.

On figv presents an exemplary embodiment of the invention. At step 1401, the tube is cut into segments of a certain length and the tubes are loaded into the feeder. At step 1403, the tubes are captured by a vacuum drum and moved down the vertical pipe using friction belts. At step 1405, the tube sections are pushed forward by the advancing drum to transport them. At step 1407, the tubes are separated from each other using a friction wheel to create intervals. At step 1409, the tubes are laid in accordance with the protrusions on the tape, and at step 1411, tubes are inserted into the headset and tab area.

On Fig presents a cross section of the suction conveyor for transporting rods containing two belts, and a friction wheel to create intervals, see Fig. 14. In particular, FIG. 15 shows a spacing wheel 181, tape 183, pipe 185 and tobacco 187. FIG. 16 shows an enlarged view of alignment tape 199, see FIG. 14.

Another embodiment of the present invention is shown in FIGS. 17-23, in this embodiment, discrete length pipes are inserted into a partially formed tobacco rod, after which the pipe is surrounded by tobacco in the headset. In particular, FIG. 17A shows a device comprising a feeder 213, vertical conveyor belts 215, 217, a transfer drum 233, a rotary holder 235 with at least one of the vacuum and mechanical holding means, a headset 237, a first tube 239, a second tube 243 and leveling tape 241.

In the embodiment of FIG. 17A, a rigid tube of irregular shape of small diameter (whose outer diameter is 3-4 mm) is fed into the headset of a tobacco rod making machine for producing cigarettes with a hollow cylindrical tobacco rod. The present invention provides four possible methods for supplying a pre-cut tube from a feeder to a headset. These four methods are explained in the following sections of the description of the invention.

17B shows a first exemplary method. In particular, step 1701 consists in feeding (pieces) of tubes one after another into a vertical pipe by opening and closing a distribution flap that is moved by a cam. Step 1703 consists in moving the tube down to the vertical pipeline using vertical conveying belts until the tube is gripped in the feeder holder. Step 1705 consists in capturing the tube using a pivotally mounted tube holder located on the transfer drum. Step 1707 consists in lowering the tube into the headset, and step 1709 consists in releasing the tube under the leveling synchronized tape.

17C shows another exemplary method. In particular, step 1711 consists in feeding (pieces) of tubes one after another into a vertical pipe by opening and closing a distribution flap that is moved by a cam. At step 1713, the tube is moved downward to the vertical conveying belts until it is laid on supports to support the tube in the desired position, or tilted to the headset. Step 1715 consists in moving (pushing) the pipe in the horizontal direction, in the direction of tobacco flow, using a horizontal pusher, and in step 1717 the pipe is gripped with an alignment tape.

17D shows another exemplary method of this embodiment. In particular, step 1721 consists in capturing the tube from the feeder using a vacuum drum. Step 1723 consists of transferring the tube to a host drum with a vacuum or mechanical holding mechanism. Next, step 1725 consists in turning the tube holder of the accommodating drum at least 90 ° in the horizontal plane and at least 180 ° in the vertical plane, and at step 1727, the plug is placed under the alignment tape inside the headset.

A fourth exemplary method includes (1) grabbing the tube from the feeder using a vacuum drum, (2) moving the tube at least 180 ° in the vertical plane and moving down to the vertical pipe with compressed air until it is laid on the supports to support the pipe in the desired position, or tilted to the headset, and (3) pushing the pipe in the horizontal direction to the tobacco stream by means of a horizontal pusher, until it is caught by a conveyor belt synchronized with the pusher.

On Fig shows the cam distribution mechanism. In particular, FIG. 18 shows a cam 219, a feeder 221, a dividing flap 223, and a vertical conveyor belt 225 connected to a vacuum device. On Fig shows an enlarged detail of Fig. In particular, FIG. 19 shows a vertical outlet 227 of a supply vessel, a tube holder tip 229, and a vacuum channel 231 in communication with a vacuum device.

On Fig shows a device for placing and aligning the tubes. In particular, FIG. 20 shows a conveyor belt 245, a feeder 249, supports for positioning tubes, a dispensing mechanism 253, and a horizontal pusher 251. FIG. 21 is a sectional view of FIG. 20 showing a feeder 257, a dividing shutter 259, tubes 265 , control cam and headset 261.

On Fig shown schematically a device for laying a tube containing a vacuum drum and a horizontal pusher. In particular, FIG. 22 shows a device comprising a conveyor belt 245, a feeder 249, supports 271 for holding the tube in a desired position, and a suction drum 273. FIG. 23 shows a cam follower containing a feeder 275, defective products 279, a vacuum cam with compressed air 277 and at least one of the sprocket or tape 281 synchronized to move the tube in the horizontal direction. More specifically, FIG. 24 shows on an enlarged scale the aforementioned sprocket, namely sprocket 267 and tube 265, lying in two positioning places at the bottom of the channel in front of the place where the tube was pushed into the headset.

On Fig shows a device for accommodating tubes (in the headset), containing a vacuum drum and placing the drum. In particular, FIG. 25 shows a feeder 287, tubes 289, a vacuum drum 285 accommodating a drum 283, a tube holder 291, and a headset 293.

The above description shows and describes the present invention. Additionally, only preferred embodiments of the invention are shown and described in the description, but, as mentioned above, it should be understood that the invention can be used in various other combinations, modifications and embodiments of the environment, and it can be modified or modified according to the concept of the invention disclosed in the present description, in accordance with the above principles and / or taking into account the experience or knowledge of a specialist in this field. The embodiments described above are further intended to explain the best known methods of carrying out the invention and to enable other specialists in this field to use the invention in various embodiments and with various modifications required for specific applications of the invention. Accordingly, the description is not intended to limit the claims to the forms or uses contemplated herein. Thus, the appended claims should be construed as embracing alternative embodiments.

Claims (5)

1. A method of manufacturing cigarettes, including:
- the implementation of the wheels of the conveyor in such a way as to enable the movement of two porous belts in parallel to one another
- adding a rear guide, a front guide and a central dividing guide to the conveyor to form a separate tobacco column on each porous tape,
- the supply of tobacco in chambers with upward flows located under the porous tapes, when moving the tapes,
- the formation of tobacco columns on each of the porous tapes,
- cutting the tobacco columns with rotary leveling discs and obtaining the exact weight of the tobacco,
- moving the cut tobacco columns along the porous tapes until the tobacco columns reach the drive wheels,
- feeding paper under the tobacco columns near the drive wheels and separating the excess tobacco from the porous tape with a scraper,
- the placement of tobacco on movable paper and around a hollow cylindrical tube,
- supply of tobacco, pipe and paper to the headset,
- forming tobacco, pipe and paper into a cylindrical shape,
- moving the rod of a cylindrical shape through the flexors and past the glue applicator that seals the paper, and
- the manufacture of a finished tobacco rod for cutting into individual tobacco rods. 2. The method according to claim 1, in which the specified hollow cylindrical tube is provided by:
- cutting the tube of a certain length and loading the tube into the feeder,
- gripping the tube using a vacuum drum and moving the tube down vertical pipelines using friction belts,
- advancing the tube using a propelling wheel that transports the tube,
- separating the tube using the friction wheel to create intervals,
- laying the tube in accordance with the protrusions of the tape, and
- introducing the tube into the headset and foot area. 3. The method according to claim 2, including:
- the supply of tubes one after the other to the vertical pipeline by opening and closing the distribution valve, which is moved by means of a cam,
- moving the tube down to the vertical pipeline using vertical conveyor belts until the tube is caught by the feeder-holder,
- gripping the tube using a pivotally mounted tube holder located on the transfer drum, and lowering it into the headset, and
- release of the tube under the leveling tape. 4. The method according to claim 2, including:
- the supply of tubes one after the other to the vertical pipeline by opening and closing the distribution valve, which is moved by means of a cam,
- moving the tube down to the vertical conveyor belts until the tube rests on a support to support the tube in the desired position or in an inclined position to the headset,
- moving the pipe in a horizontal direction in the direction of tobacco flow using a horizontal pusher, and
- capture of the tube with a leveling tape. 5. The method according to claim 2, including:
- capture of the tube supplied from the feeder using a vacuum drum,
- transferring the tube to the accommodating drum with a vacuum or mechanical holding mechanism,
- rotation of the tube accommodating the drum, at least 90 ° in the horizontal plane and at least 180 ° in the vertical plane, and
- placement of the plug under the synchronized conveyor belt inside the headset.

Images