GB2494159A - Cigarette processing assembly for reclaiming tobacco - Google Patents
Cigarette processing assembly for reclaiming tobacco Download PDFInfo
- Publication number
- GB2494159A GB2494159A GB1115061.2A GB201115061A GB2494159A GB 2494159 A GB2494159 A GB 2494159A GB 201115061 A GB201115061 A GB 201115061A GB 2494159 A GB2494159 A GB 2494159A
- Authority
- GB
- United Kingdom
- Prior art keywords
- text
- cigarettes
- conveyor
- cigarette
- tobacco
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 235000019504 cigarettes Nutrition 0.000 title claims abstract description 135
- 241000208125 Nicotiana Species 0.000 title claims abstract description 49
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 239000012530 fluid Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 238000007873 sieving Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/36—Removing papers or other parts from defective cigarettes
Landscapes
- Manufacturing Of Cigar And Cigarette Tobacco (AREA)
Abstract
A cigarette processing assembly for processing cigarettes comprising a filter portion and a tobacco portion, the assembly being arranged to separate the filter portion from the respective tobacco portion, comprises a conveyor for conveying cigarettes, alignment means for aligning the cigarettes with respect to the conveying means; a sensor for sensing an orientation of each of the cigarettes with respect to the conveyor; and a cutter for cutting the cigarette to separate the filter portion from the tobacco portion. The conveyor may be in the form of a belt or drum 4, the central portion of which is fluted for alignment and plain on either side 18. The sensor may be an electro-optical station 5, the cigarette being then moved from by air jets to one or other side of the drum before being cut by knives at a station 7.
Description
Tobacco Reclaim Device The present invention relates to a tobacco reclaim device.
S In the cigarette manufacturing process, defective cigarettes are detected and rejected automatically, and then re-processed to recover and re-use their tobacco content. The process of reclaiming the tobacco depends on achieving an efficient separation of tobacco from the cigarette paper, which is used to enclose the tobacco, and the associated cigarette filter, while minimising any degradation or reduction of tobacco particle size.
Existing processes for achieving this separation include sieving, mechanical deformation and shock combined with air separation. Other methods of separation involve slitting the cigarette paper generally along the cigarettes' longitudinal axis, thus releasing the tobacco which can then be separated from the paper by sieving.
These existing processes can be applied to achieve relatively good separation of paper and filters from tobacco. However, the introduction of more sophisticated filters containing encapsulated or granular flavour or filtration materials requires even higher levels of separation efficiency than can be achieved by these existing means.
In accordance with the present invention, as seen from a first aspect, there is provided a cigarette processing assembly for processing cigarettes comprising a filter portion and a tobacco portion, to separate the filter portion from the respective tobacco portion, the assembly comprising: a conveyor for conveying cigarettes; alignment means for aligning the cigarettes with respect to the conveying means; a sensor for sensing an orientation of each of the cigarettes with respect to the conveyor; and, a cutter for cutting the cigarette to separate the filter portion from the tobacco portion.
Advantageously, the device separates the cigarette tobacco from the associated filter and thus ensures that the reclaimed tobacco is predominantly free from any of the constituents of the filter.
S The conveyor may comprise a conveyor belt or a conveyor drum, and the alignment means preferably comprises a plurality of channels disposed upon a surface of the conveyor, which are arranged to separately receive a cigarette. The channels preferably comprise a plurality of corrugations, which preferably extend substantially transverse a conveying direction. Accordingly, as the cigarettes fall from a hopper or similar for example, onto the conveyor or drum, they are arranged to separately locate within a respective channel and become aligned across the conveyor.
Preferably, the sensor comprises at least one optical sensor disposed adjacent the conveyor for sensing the orientation of the cigarettes within the channels, to determine whether the cigarette filter portion extends proximate a first side or a second side of the conveyor.
Preferably, the assembly further comprises adjustment means for adjusting the position of the cigarettes on the conveyor in dependence of the sensed orientation of the cigarettes. The adjustment means preferably comprises at least one air jet for directing a jet of air toward the cigarettes to displace the cigarettes across the conveyor, namely along the respective channels. The adjustment means is arranged to displace the cigarettes so that the filter portion extends out of the respective channel. Preferably, the adjustment means further comprises a stop to limit the extent to which the cigarettes are displaced out from the respective channel.
Preferably, the conveyor comprises holding means for holding the cigarettes upon the conveyor to prevent the cigarettes from falling from the conveyor or from otherwise becoming displaced upon the conveyor as the cigarettes are conveyed through the assembly. The holding means is arranged to hold the portion of the cigarette which extends within the channel and preferably comprises a plurality of apertures disposed within channels of the conveyor which are arranged in fluid communication with a pumping arrangement, for reducing the air pressure at the side of the surface opposite the side upon which the cigarettes are supported.
Preferably, the cutter comprises a rotating cutter having at least one blade which is arranged to extend to the side of the channels to cut the cigarettes and separate the filter portions from the respective tobacco portions.
S
The assembly preferably further comprises a cutting drum for cutting the tobacco portion, to release the tobacco therefrom.
In accordance with the present invention as seen from a second aspect, there is provided a separation process for separating a cigarette tobacco portion from a cigarette filter portion, the process comprising: -receiving cigarettes upon a conveyor; -aligning the cigarettes upon the conveyor; -sensing an orientation of each of the cigarettes upon the conveyor; and, -cutting the cigarettes to separate the tobacco portion from the filter portion.
The process preferably further comprises holding the cigarettes upon the conveyor to minimise any displacement of the cigarettes upon the conveyor as they are conveyed.
The process further comprises repositioning the cigarettes upon the conveyor in dependence of the sensed orientation of the cigarettes.
Following the cutting of the cigarettes, the process preferably further comprises cutting the tobacco portion to release the tobacco from a paper enclosure and subsequently releasing the cigarettes from the conveyor.
The process preferably further comprises separating the released tobacco from the enclosures.
An embodiment of the present invention will now be described by way of example only and with reference to the accompanying drawings in which: Figure la is a schematic illustration of a side view of a screening conveyor of a cigarette processing assembly according to an embodiment of the present invention; Figure lb is a plan view of the screening conveyor illustrated in figure 1; Figure 2 is a schematic illustration of the passage of cigarettes from a hopper onto a S conveying drum of the assembly according to an embodirrient of the present invention; Figure 3 is a plan view of the conveying drum of the assembly according to an embodiment of the present invention; and, Figure 4 is a schematic illustration the passage of cigarettes from a hopper onto a conveying drum of the assembly according to an embodirrient of the present invention, further illustrating the position of the rotary cutting knives.
Referring to figure 1 of the drawings, waste cigarettes from the manufacturing process are fed into an initial screening vibratory conveyor to separate loose tobacco and over-length cigarettes from the single cigarettes. This initial screening conveyor consists of a perforated plate or mesh screen 20 of a suitable aperture size to allow the majority of loose tobacco to pass through to a collection tray and discharge chute 22 located underneath. A typical aperture size would be in the range of 2 to 4 mm, but need not necessarily be confined to this range as the selection of the sieve aperture would depend on the type of tobacco being processed. Following the sieve section the waste cigarettes pass to a second 2-deck vibratory conveying section whose top deck conveying surface 21 is corrugated in the longitudinal conveying direction. The dimensions of the corrugations are selected to be commensurate with the diameters of the cigarettes being processed, and would typically be in the form of V or U sections of between 6 and 10mm width, but not necessarily confined to this range. The purpose of the corrugations is to align the cigarettes so that over-length, deformed or double cigarettes can be separated from single cigarettes. This separation is achieved by slots in the bottoms of the U or V sections which are slightly longer than half the length of the cigarettes being processed. Only the standard length cigarettes are able to fall through the slots onto the lower deck conveying surface which is also formed from U or V corrugations similar to those of the top deck. The double length or over-length cigarette rods on the top deck will possibly also include deformed cigarettes and groups of cigarettes which have been stuck together. These items are all too large to pass through the slots onto the lower deck, and are collected as they fall from the end of the conveyor into a chute 23 to be processed separately.
The standard length cigarettes are transferred from the corrugated lower deck to a S collection band conveyor 2 running at right angles to the separation conveyor's direction.
This band conveyor has a corrugated surface, One or several rotating brushes and static deflectors assist the cigarettes to lie within the corrugations of the band conveyor, so that their axes are perpendicular to the conveying direction.
Referring to figure 2 of the drawings, at the end of the collection band 2, the cigarettes roll or fall down an inclined chute into a hopper 3 at the bottom of which there is a fluted rotating conveying drum 4. The axis of this drum is parallel with the head-roll of the orienting band conveyor, and the flutes in the drum periphery are also parallel to the drum axis. Referring to figure 3 of the drawings, the axial length of the drum is equal to the length of the cigarettes plus the length of one filter, plus an additional small allowance for clearances and tolerances. The central portion of the drum 4 is fluted, and either side is plain 18, with its circumference coincident with the inner diameter or bottoms of the flutes. The flutes are generally of U section of similar but slightly greater width than the diameter of the cigarettes being processed. The bottoms of the U shaped flutes are provided with a plurality of small holes 17 which communicate with a plenum chamber within the drum. A pumping arrangement (not shown) is used to apply a vacuum is applied to this plenum by means of a suitable rotary union, which results in the cigarettes being held in the flutes by suction.
Referring to figures 2 and 3 of the drawings, as the drum rotates, the end of each cigarette passes an electro-optical inspection station 5 which provides a signal according to whether the tobacco or filter is being viewed. To avoid the possibility of incorrect identification due to the tobacco being obscured by paper, the cigarettes are viewed from both ends. Control logic initiates a high speed pulse of compressed air 6 to move individual cigarettes to one side or the other of the fluted drum. The precise position of these cigarettes is determined by end datum plates 16 whose positions can be adjusted according to the length of the filters in the cigarettes being processed. This process may take place over one or more segments of the fluted drum, using one or more sets of compressed air jets 6 operated by control logic which determines whether an individual cigarette has to be moved to one side or other of the drum. Referring to figure 4, cigarettes originally with their filters in position A will be moved to position C by the action of the air jets 6, and those originally in position B will be similarly aligned in position D.
S
The cigarettes then pass to a culling station 7 at which rapidly rotating rotary blades or knives cut the cigarette transversely, thus separating the filters from the cigarette. The dimensional alignment of the cigarettes is such that the knives cut through the tobacco portion of the cigarette and not the filter, thus eliminating the possibility of contamination of the reclaimed tobacco by filter material.
The tobacco portion of the cigarette is held by the central portion of the fluted drum 4, and the filters are supported by the two outer parts of the drum surface. As the outer plain parts of the drum surface are not provided with vacuum holes, the filters can fall away naturally by gravity into a collection chute 8 into a receptacle 9. If necessary, the ejection of the filters from the drum can be assisted by compressed air.
Referring to figure 2 of the drawings, the tobacco portion of the cigarette can be released from the drum by locally releasing the vacuum and/or using compressed air jets to assist removal of the cigarette from the drum. These portions of the cigarette can then be processed in a conventional cigarette reclaim plant. Alternatively they can be retained on the fluted drum 4 or transferred to a second fluted drum to allow the paper to be slit longitudinally.
Referring to figure 4 of the drawings, longitudinal slitting of the cigarette paper may be achieved by a culling drum 10 which is provided with one or more radial knives disposed around its periphery. The culling drum is in close proximity to the drum 4 on which the cigarettes are held, and its speed is synchronised with that drum. The knives press into the cigarelles typically for a distance of typically 1mm or 2 mm to generate sufficient force to cut the paper.
The cut cigarettes which now each consist of a strip of paper and loose tobacco are ejected from the fluted drum by locally releasing the vacuum or by applying external suction 11. This may typically but not exclusively be applied by means of a fan 12 and the mixed paper and tobacco separated from the air by means of a cyclone 14. This material is then passed over a vibratory sieving conveyor 15 whose mesh aperture size is between 2 and 6mm but not confined to this range. The reclaimed tobacco falls through the mesh with virtually zero contamination by filter material or paper, and is S collected in convenient receptacles from the lower deck of the sieving conveyor. The paper remains on the upper sieve deck and can be similarly collected or conveyed for example pneumatically to a waste compactor.
Claims (1)
- <claim-text>Claims 1. A cigarette processing assembly for processing cigarettes comprising a filter portion and a tobacco portion, to separate the filter portion from the respective S tobacco portion, the assembly comprising: a conveyor for conveying cigarettes; alignment means for aligning the cigarettes with respect to the conveying means; a sensor for sensing an orientation of each of the cigarettes with respect to the conveyor; and, a cutter for cutting the cigarette to separate the filter portion from the tobacco portion.</claim-text> <claim-text>2. A cigarette processing assembly according to claim 1, wherein the conveyor comprises a conveyor belt or a drum.</claim-text> <claim-text>3. A cigarette processing assembly according to claim 1 or 2, wherein the alignment means comprises a plurality of channels disposed upon a surface of the conveyor, which are arranged to separately receive a cigarette.</claim-text> <claim-text>4. A cigarette processing assembly according to claim 3, wherein the channels comprise a plurality of corrugations, which preferably extend substantially transverse a conveying direction.</claim-text> <claim-text>5. A cigarette processing assembly according to claim 3 or 4, wherein the sensor comprises at least one optical sensor disposed adjacent the conveyor for sensing the orientation of the cigarettes within the channels, to determine whether the cigarette filter portion extends proximate a first side or a second side of the conveyor.</claim-text> <claim-text>6. A cigarette processing assembly according to any of claims 3 to 5, further comprising adjustment means for adjusting the position of the cigarettes on the conveyor in dependence of the sensed orientation of the cigarettes, so that the filter portion extends out of the respective channel.</claim-text> <claim-text>7. A cigarette processing assembly according to claim 6, wherein the adjustment means comprises at least one air jet for directing a jet of air toward the cigarettes to displace the cigarettes across the conveyor.</claim-text> <claim-text>8. A cigarette processing assembly according to claim 7, wherein the adjustment means is arranged to displace the cigarettes so that the filter portion extends out of the respective channel.</claim-text> <claim-text>9. A cigarette processing assembly according to any of claims 6 to B wherein the adjustment means comprises or further comprises a stop to limit the extent to which the cigarettes are displaced out from the respective channel.</claim-text> <claim-text>10. A cigarette processing assembly according to any preceding claim, wherein the S conveyor comprises holding means for holding the cigarettes upon the conveyor to prevent the cigarettes from falling from the conveyor or from otherwise becoming displaced upon the conveyor as the cigarettes are conveyed through the assembly.</claim-text> <claim-text>11. A cigarette processing assembly according to claim 10, as appended to any of claims 3 to 9, wherein the holding means is arranged to hold the portion of the cigarette which extends within the channel.</claim-text> <claim-text>12. A cigarette processing assembly according to claim 10 or 11, as appended to any of claims 3 to 9, wherein the holding means comprises a plurality of apertures disposed within channels of the conveyor which are arranged in fluid communication with a pumping arrangement, for reducing the air pressure at the side of the surface opposite the side upon which the cigarettes are received.</claim-text> <claim-text>13. A cigarette processing assembly according to claim 3, wherein the cutter comprises a rotating cutter having at least one blade which is arranged to extend to the side of the channels to cut the cigarettes and separate the filter portions from the respective tobacco portions.</claim-text> <claim-text>14. A cigarette processing assembly according to any preceding claim, further comprising a cutting drum for cutting the tobacco portion, to release the tobacco therefrom.</claim-text> <claim-text>15. A separation process for separating a cigarette tobacco portion from a cigarette filter portion, the process comprising: -receiving cigarettes upon a conveyor; -aligning the cigarettes upon the conveyor; -sensing an orientation of each of the cigarettes upon the conveyor; and, -cutting the cigarettes to separate the tobacco portion from the filter portion.</claim-text> <claim-text>16. A process according to claim 15, further comprising holding the cigarettes upon the conveyor to minimise any displacement of the cigarettes upon the conveyor as they are conveyed.</claim-text> <claim-text>17. A process according to claim 15 or 16, further comprising repositioning the cigarettes upon the conveyor in dependence of the sensed orientation of the cigarettes.</claim-text> <claim-text>18. A process according to any of claims 15 to 17, further comprising cutting the S tobacco portion to release the tobacco from a paper enclosure.</claim-text> <claim-text>19. A process according to any of claim 15 to 18, further comprising separating the tobacco from the enclosure.</claim-text>
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1115061.2A GB2494159A (en) | 2011-09-01 | 2011-09-01 | Cigarette processing assembly for reclaiming tobacco |
| PCT/EP2012/066873 WO2013030286A1 (en) | 2011-09-01 | 2012-08-30 | Tobacco reclaim from waste cigarettes |
| PL12759059T PL2750525T3 (en) | 2011-09-01 | 2012-08-30 | Tobacco reclaim from waste cigarettes |
| EP12759059.4A EP2750525B1 (en) | 2011-09-01 | 2012-08-30 | Tobacco reclaim from waste cigarettes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1115061.2A GB2494159A (en) | 2011-09-01 | 2011-09-01 | Cigarette processing assembly for reclaiming tobacco |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201115061D0 GB201115061D0 (en) | 2011-10-19 |
| GB2494159A true GB2494159A (en) | 2013-03-06 |
Family
ID=44882019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1115061.2A Withdrawn GB2494159A (en) | 2011-09-01 | 2011-09-01 | Cigarette processing assembly for reclaiming tobacco |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2494159A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104146340A (en) * | 2014-08-13 | 2014-11-19 | 昆明红实科技有限公司 | Cut tobacco recovering device |
| CN105326088A (en) * | 2014-08-11 | 2016-02-17 | 李新亮 | Processor for defective cigarettes |
| CN105410989A (en) * | 2015-12-07 | 2016-03-23 | 贵州汇丰烟草机械配件有限责任公司 | Novel tobacco shred recovering device |
| EP3015003A1 (en) * | 2014-10-28 | 2016-05-04 | Köhl Maschinenbau AG | Sorting device for long articles, especially for cigarettes |
| US11213063B2 (en) | 2015-10-20 | 2022-01-04 | Philip Morris Products S.A. | Centering device for rod shaped articles of the tobacco industry |
| WO2023052791A1 (en) * | 2021-10-01 | 2023-04-06 | British American Tobacco (Investments) Limited | A substance recovery apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115349662B (en) * | 2022-08-08 | 2024-06-11 | 张家口卷烟厂有限责任公司 | Filter tip cigarette cutting and separating system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB763999A (en) * | 1954-05-25 | 1956-12-19 | James Ernest Morris | Improvements in or relating to a method of and apparatus for removing stubs from mouthpiece cigarettes in the stripping of such cigarettes |
| US2815029A (en) * | 1954-04-14 | 1957-12-03 | Zigarettenfabrik Haus Neuerbur | Method and means for tearing out filters from defective filter cigarettes |
| US2976872A (en) * | 1958-06-25 | 1961-03-28 | British American Tobacco Co | Recovery of tobacco from defective cigarettes |
| GB1003000A (en) * | 1962-05-11 | 1965-09-02 | American Mach & Foundry | Method and apparatus for removal of tips from scrap cigarettes |
| US3404688A (en) * | 1965-06-04 | 1968-10-08 | Reynolds Tobacco Co R | Apparatus for disassembling filter and cigarette assemblies |
| EP0436304A1 (en) * | 1990-01-03 | 1991-07-10 | Philip Morris Products Inc. | Method and apparatus for detipping loose cigarettes |
-
2011
- 2011-09-01 GB GB1115061.2A patent/GB2494159A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2815029A (en) * | 1954-04-14 | 1957-12-03 | Zigarettenfabrik Haus Neuerbur | Method and means for tearing out filters from defective filter cigarettes |
| GB763999A (en) * | 1954-05-25 | 1956-12-19 | James Ernest Morris | Improvements in or relating to a method of and apparatus for removing stubs from mouthpiece cigarettes in the stripping of such cigarettes |
| US2976872A (en) * | 1958-06-25 | 1961-03-28 | British American Tobacco Co | Recovery of tobacco from defective cigarettes |
| GB1003000A (en) * | 1962-05-11 | 1965-09-02 | American Mach & Foundry | Method and apparatus for removal of tips from scrap cigarettes |
| US3404688A (en) * | 1965-06-04 | 1968-10-08 | Reynolds Tobacco Co R | Apparatus for disassembling filter and cigarette assemblies |
| EP0436304A1 (en) * | 1990-01-03 | 1991-07-10 | Philip Morris Products Inc. | Method and apparatus for detipping loose cigarettes |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105326088A (en) * | 2014-08-11 | 2016-02-17 | 李新亮 | Processor for defective cigarettes |
| CN104146340A (en) * | 2014-08-13 | 2014-11-19 | 昆明红实科技有限公司 | Cut tobacco recovering device |
| EP3015003A1 (en) * | 2014-10-28 | 2016-05-04 | Köhl Maschinenbau AG | Sorting device for long articles, especially for cigarettes |
| US11213063B2 (en) | 2015-10-20 | 2022-01-04 | Philip Morris Products S.A. | Centering device for rod shaped articles of the tobacco industry |
| CN105410989A (en) * | 2015-12-07 | 2016-03-23 | 贵州汇丰烟草机械配件有限责任公司 | Novel tobacco shred recovering device |
| WO2023052791A1 (en) * | 2021-10-01 | 2023-04-06 | British American Tobacco (Investments) Limited | A substance recovery apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| GB201115061D0 (en) | 2011-10-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |