EP2022351A2 - An apparatus for processing at least one strip of filters material in the tobacco industry - Google Patents
An apparatus for processing at least one strip of filters material in the tobacco industry Download PDFInfo
- Publication number
- EP2022351A2 EP2022351A2 EP08161235A EP08161235A EP2022351A2 EP 2022351 A2 EP2022351 A2 EP 2022351A2 EP 08161235 A EP08161235 A EP 08161235A EP 08161235 A EP08161235 A EP 08161235A EP 2022351 A2 EP2022351 A2 EP 2022351A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- rollers
- pair
- stretching
- path
- 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.)
- Granted
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
Definitions
- Filter manufacturing machines for smoking products, in particular cigarettes, are fitted with an apparatus for processing a strip of filtering material, for example cellulose acetate, unwound from a bale and fed by drive rollers along a determinate path.
- a strip of filtering material for example cellulose acetate
- the strip is fed to a section of a manufacturing machine for the formation of the single cigarette filters.
- the apparatus 2 includes, along path P, means for stretching the strip 3, and a unit, schematically shown as block 9, for the treatment of the strip 3 by means of additives comprising, for example, plasticizing material.
- this double stretching step interrupted by a relaxation step, enables a uniform tensioning of the fibres making up the strip 3 and, consequently, a uniform blooming of this strip.
- the idle rollers 22, 23 and 24, 25 forming the above-mentioned pairs are maintained in reciprocal contact along the path P by pressing means, not illustrated, for example of the elastic or pneumatic type, in order to exercise a deforming action on the strip 3, as illustrated in Figure 2a , and to constitute means of braking the advance of the strip 3 itself drawn by the downstream rollers.
- the apparatus 2 illustrated in Figure 3 differs from that of Figure 1 in that along the path P upstream of the first pair of rollers 14 and 15 there is a pair of idle rollers 22, 23 perfectly similar to the rollers 22, 23 of Figure 2 , and the rollers 18 and 19 of Figure 1 are replaced by two rollers 26 and 27 equal to the rollers 24 and 25 of Figure 2 .
- the apparatus 2 illustrated in Figure 4 is deduced from that illustrated in Figure 2 , from which it differs solely by the fact that the strip 3 at the outlet from the pair of rollers 20, 21 is subject to a further stretching action by an additional traction unit denoted with numeral 12' and comprising two rollers 28, 29 cooperating together and motorised by actuator means, not illustrated, with a tangential speed V5 greater than the speed V4.
Landscapes
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
Description
- The present invention relates to an apparatus for processing at least one strip of filter material in the tobacco industry.
- Filter manufacturing machines for smoking products, in particular cigarettes, are fitted with an apparatus for processing a strip of filtering material, for example cellulose acetate, unwound from a bale and fed by drive rollers along a determinate path. At the outlet of this apparatus the strip is fed to a section of a manufacturing machine for the formation of the single cigarette filters.
- The above-mentioned processing comprises, in order, from the upstream end to the downstream end of the above-mentioned path, an operation for the traction or stretching of the strip and an operation for the treatment of the strip by means of additives comprising, for example, a plasticizing material.
- In particular, the above-mentioned operation for stretching (prevalently longitudinal but also transversal) of the strip, is realised by stretching means comprising two pairs of rollers substantially tangential to each other along the above-mentioned path.
- The tangential speed of the rollers defining the downstream pair is greater than the tangential speed of the rollers defining the upstream pair, in order to subject the strip in the section between the two pairs of rollers to a determinate tension.
- The aim of this operation is to render the strip of filtering material more homogeneous longitudinally and transversally and, finally, to enable a production of filters with determinate characteristics which are constant over time.
- The stretching means according to the prior art have not been able to provide a uniform tensioning action on the strip, or in other words to subject the single fibres to a tension which tends to straighten them along the longitudinal axis of the strip itself.
- It is also noted that, according to a characteristic of cellulose acetate, when a strip composed of fibres of that material is subject to a determinate tension it tends, following the so-called "blooming" phenomenon, to expand, thereby increasing its thickness.
- Non-uniform stretching results in the production of a strip with a variable thickness and consequently a production of filters having a filtering capacity and a filling capacity which is non-uniform and variable during the same production cycle. In addition, a non-efficient stretching results in a non-optimum use of the strip unwound from the bale and, consequently, a waste of material.
- The purpose of the present invention is to provide an apparatus for processing at least one strip of filter material which eliminates the above-mentioned shortcomings, and, in particular, stretching means able to produce a more homogeneous and voluminous strip in order to reduce the waste of material.
- According to the present invention an apparatus is provided for the processing of at least one strip of filter material in the tobacco industry, comprising the characteristics according to one or more of the attached claims.
- The present invention is described with reference to the accompanying drawings, which are provided merely by way of example without restricting the scope of the inventive concept, and in which:
-
Figure 1 illustrates a schematic front view of a filter manufacturing machine fitted with an apparatus for the processing of at least one strip of filter material realised according to the present invention; -
Figures 2 to 5 illustrate respective variants of the apparatus inFigure 1 ; -
Figure 2a illustrates schematically and at a larger scale a detail ofFigure 2 . - With reference to
Figure 1 , the numeral 1 denotes in its entirety a filter manufacturing machine for smoking products, in particular for cigarettes. - The machine 1 comprises an
apparatus 2 for processing astrip 3 of filter material, generally cellulose acetate, advanced along a determinate processing path P in the direction indicated by the arrow F. - The
apparatus 2 is placed between afeeder unit 4, comprising a pair ofunwinding rollers strip 3 coming from a bale 7, and a section or unit, schematically shown asblock 8, for the formation of single filters for cigarettes from thestrip 3. Therollers - The
apparatus 2 includes, along path P, means for stretching thestrip 3, and a unit, schematically shown asblock 9, for the treatment of thestrip 3 by means of additives comprising, for example, plasticizing material. - The above-mentioned stretching means, indicated in their entirety with
numeral 10, comprise afirst unit 11 and asecond unit 12 for longitudinal traction of thestrip 3, between which aunit 13 is fitted for loosening or relaxing thestrip 3. - The above-mentioned
first traction unit 11 comprises a first pair ofrollers unwinding rollers rollers rollers - The
relaxation unit 13 of thestrip 3 comprises the second pair ofrollers rollers rollers rollers - The
second unit 12 for the longitudinal traction ofstrip 3 comprises a first pair of rollers, consisting of the above-mentionedrollers rollers rollers - As a result of the above, the
strip 3 is subject in the section t1 to a longitudinal traction, in the section t2 to a relaxation and in the section t3 to a further longitudinal traction. - In practice, it has been seen that this double stretching step, interrupted by a relaxation step, enables a uniform tensioning of the fibres making up the
strip 3 and, consequently, a uniform blooming of this strip. - With reference to
Figure 2 , theapparatus 2 illustrated differs from that ofFigure 1 in that the pairs ofrollers idle rollers - The
idle rollers strip 3, as illustrated inFigure 2a , and to constitute means of braking the advance of thestrip 3 itself drawn by the downstream rollers. Theapparatus 2 illustrated inFigure 3 differs from that ofFigure 1 in that along the path P upstream of the first pair ofrollers idle rollers rollers Figure 2 , and therollers Figure 1 are replaced by tworollers rollers Figure 2 . - As a result of the above, before the relaxation at the section t2, the
strip 3 is subject to two successive stretching actions by therollers rollers - The
apparatus 2 illustrated inFigure 4 is deduced from that illustrated inFigure 2 , from which it differs solely by the fact that thestrip 3 at the outlet from the pair ofrollers rollers - Lastly, the
apparatus 2 illustrated inFigure 5 can be deduced from that illustrated inFigure 3 , from which it differs in that theidle rollers respective rollers rollers rollers - Lastly, it is noted that the tangential speed of rotation of the above-mentioned
units strip 3 have increasing values from upstream to downstream along the path P. - The present invention includes all the variants according to which at least one intermediate step of stretching or relaxation of the
strip 3 is inserted between two initial and final stretching steps of thestrip 3.
Claims (9)
- An apparatus for processing at least one strip of filter material in the tobacco industry, comprising means for stretching (10) the strip (3) and
characterised in that the stretching means (10) comprise, along a path (P) for the advance and processing of the strip (3), two terminal units for stretching the strip (3) between which is fitted at least one additional intermediate unit for stretching or relaxation of the strip (3). - The apparatus according to claim 1, characterised in that the stretching means (10) comprise, along the path (P), at least two longitudinal traction units (11, 12) of the strip (3), and a loosening-relaxation unit (13) of the strip (3) placed between the two longitudinal traction units (11, 12).
- The apparatus according to claim 2, characterised in that each of the two longitudinal traction units (11, 12) comprise, respectively from upstream to downstream of the path P, a first pair of rollers (14-15, 22-23; 18-19, 24-25) and a second pair of rollers (16-17; 20-21) substantially tangential to each other, the rollers of the second pair (16-17; 20-21) having a tangential speed greater than that of the first pair (14-15, 22-23; 18-19, 24-25).
- The apparatus according to claim 3, characterised in that the loosening-relaxation unit (13) comprises the second pair of rollers (16-17) and the pair of rollers (18-19; 24-25) fitted downstream of the rollers (16-17), the rollers (18-19; 24-25) having a tangential speed lower than that of the second pair (16-17).
- The apparatus according to claim 4, characterised in that the pair of rollers (24-25) are idle rollers around their axes and braking rollers for the strip (3).
- The apparatus according to claim 4, characterised in that the pair of rollers (18-19) are motorized rollers.
- The apparatus according to any of the foregoing claims from 1 to 6, characterised in that the stretching means (10) comprise, along the path P, at least two successive units (11, 11') for longitudinal traction of the strip (3) fitted upstream of the loosening unit (13).
- The apparatus according to any of the foregoing claims from 1 to 7, characterised in that the stretching means comprise, along the path P, at least two successive units (12, 12') for longitudinal traction of the strip (3) fitted downstream of the loosening unit (13).
- The apparatus according to any of the foregoing claims from 1 to 8, characterised in that the traction units (11, 11'; 12, 12') have an increasing tangential speed along the path P.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO20070569 ITBO20070569A1 (en) | 2007-08-07 | 2007-08-07 | EQUIPMENT FOR PROCESSING AT LEAST A STRIP OF FILTER MATERIAL IN THE TOBACCO INDUSTRY. |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2022351A2 true EP2022351A2 (en) | 2009-02-11 |
EP2022351A3 EP2022351A3 (en) | 2010-09-01 |
EP2022351B1 EP2022351B1 (en) | 2012-04-25 |
Family
ID=40019276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080161235 Expired - Fee Related EP2022351B1 (en) | 2007-08-07 | 2008-07-28 | An apparatus for processing at least one strip of filters material in the tobacco industry |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2022351B1 (en) |
JP (1) | JP5243142B2 (en) |
CN (1) | CN101361592B (en) |
IT (1) | ITBO20070569A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140364291A1 (en) * | 2011-12-30 | 2014-12-11 | Philip Morris Products S.A. | Apparatus and method for supplying a continuous web of crimped sheet material |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1559333A2 (en) | 2004-01-29 | 2005-08-03 | Hauni Maschinenbau AG | Separate relaxation and spraying of a filter tow strip |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4345569B4 (en) * | 1993-11-24 | 2006-06-08 | Hauni Maschinenbau Ag | Arrangement for processing a strip of filter material |
DE4443866A1 (en) * | 1994-12-09 | 1996-06-13 | Hauni Maschinenbau Ag | Method and device for forming a filter tow of the tobacco processing industry |
DE19807129A1 (en) * | 1997-04-08 | 1998-10-15 | Hauni Maschinenbau Ag | Glue application monitoring on moving object |
DE19811014A1 (en) * | 1998-03-13 | 1999-09-16 | Hauni Maschinenbau Ag | Method and device for producing filter rods for rod-shaped articles in the tobacco processing industry |
DE102005007214A1 (en) * | 2005-02-16 | 2006-08-24 | Hauni Maschinenbau Ag | Preparation of a strip of filter material from the tobacco processing industry |
-
2007
- 2007-08-07 IT ITBO20070569 patent/ITBO20070569A1/en unknown
-
2008
- 2008-07-28 EP EP20080161235 patent/EP2022351B1/en not_active Expired - Fee Related
- 2008-08-05 JP JP2008202437A patent/JP5243142B2/en not_active Expired - Fee Related
- 2008-08-06 CN CN2008101454468A patent/CN101361592B/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1559333A2 (en) | 2004-01-29 | 2005-08-03 | Hauni Maschinenbau AG | Separate relaxation and spraying of a filter tow strip |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140364291A1 (en) * | 2011-12-30 | 2014-12-11 | Philip Morris Products S.A. | Apparatus and method for supplying a continuous web of crimped sheet material |
Also Published As
Publication number | Publication date |
---|---|
CN101361592B (en) | 2013-12-04 |
CN101361592A (en) | 2009-02-11 |
JP5243142B2 (en) | 2013-07-24 |
EP2022351A3 (en) | 2010-09-01 |
JP2009039120A (en) | 2009-02-26 |
ITBO20070569A1 (en) | 2007-11-06 |
EP2022351B1 (en) | 2012-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2893820B1 (en) | Method for producing filter cigarette, filter, and filter cigarette | |
JP2750812B2 (en) | Bar-shaped dough forming method and apparatus | |
DE102006046505A1 (en) | Method and device for producing a continuous strip of dough | |
JP2005211071A (en) | Separate relaxation and spraying of filter tow strip | |
EP2255681B1 (en) | String machine for the tobacco processing industry | |
EP2022351B1 (en) | An apparatus for processing at least one strip of filters material in the tobacco industry | |
EP1917871A1 (en) | A machine manufacturing filters for tobacco products | |
DE112015006142B4 (en) | Device for the production of cigarette filters, control device for the device for the production of cigarette filters, computing device for the device for the production of cigarette filters and control methods for the device for the production of cigarette filters | |
EP2868214A1 (en) | Device for manufacturing a filter rod and machine for the tobacco processing industry | |
DE69207724T2 (en) | Method and device for separating polypropylene when processing silk | |
EP3589143B1 (en) | A method for reducing stress of a garniture belt in a tobacco industry machine, a method for reducing rejection in a tobacco industry machine and a garniture device for a tobacco industry machine | |
EP1692957A1 (en) | Treating a strip of filter material in the tobacco industry | |
EP1405573A2 (en) | Egalisator for a cigarette rod machine | |
DE102005046885B4 (en) | Web feed | |
DE102010063593A1 (en) | Filter material for use in manufacturing of filter rod of cigarette, has stripe locations whose mixing ratio is used for adjusting tensile strength of filter rods | |
DE102015001606B3 (en) | Method and device for producing film cigarettes, film cigarillos or the like, in particular with a filter segment in the transverse process | |
DE3634105A1 (en) | Apparatus for producing filter plugs for rod-shaped articles in the tobacco processing industry | |
DE2521391C2 (en) | Stretching device for a filter manufacturing machine in the tobacco processing industry | |
DE102015010563A1 (en) | Machine for producing a rod-shaped article of vegetable film in the strand process | |
JPS6426B2 (en) | ||
DE1632341C3 (en) | Rolling device for dough | |
US20190328035A1 (en) | A feeding device for feeding a continuous strip into a continuous fibrous band in a tobacco industry machine for manufacturing rod-like elements and a machine for manufacturing rod-like elements | |
DE102021124107A1 (en) | Rolling of stick-shaped articles in the tobacco processing industry | |
PL241632B1 (en) | Formatting device, machine for manufacturing multi-segmented cigarette filter slabs and method for manufacturing multi-segmented cigarette filter slabs | |
JP2003038157A (en) | Method for tobacco filter production |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
17P | Request for examination filed |
Effective date: 20110228 |
|
AKX | Designation fees paid |
Designated state(s): DE FR GB NL PL |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB NL PL |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 602008015139 Country of ref document: DE Effective date: 20120621 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: T3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20120425 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20130128 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 602008015139 Country of ref document: DE Effective date: 20130128 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20130726 Year of fee payment: 6 Ref country code: DE Payment date: 20130729 Year of fee payment: 6 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20130729 Year of fee payment: 6 Ref country code: FR Payment date: 20130717 Year of fee payment: 6 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602008015139 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: V1 Effective date: 20150201 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20140728 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150201 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20150331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20150203 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602008015139 Country of ref document: DE Effective date: 20150203 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140731 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20140728 |