WO2015001316A1 - Machine à rouler - Google Patents

Machine à rouler Download PDF

Info

Publication number
WO2015001316A1
WO2015001316A1 PCT/GB2014/051954 GB2014051954W WO2015001316A1 WO 2015001316 A1 WO2015001316 A1 WO 2015001316A1 GB 2014051954 W GB2014051954 W GB 2014051954W WO 2015001316 A1 WO2015001316 A1 WO 2015001316A1
Authority
WO
WIPO (PCT)
Prior art keywords
curling
bar
sheet material
patterned
sheet
Prior art date
Application number
PCT/GB2014/051954
Other languages
English (en)
Inventor
Steven Holford
Original Assignee
British American Tobacco (Investments) Limited
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British American Tobacco (Investments) Limited filed Critical British American Tobacco (Investments) Limited
Publication of WO2015001316A1 publication Critical patent/WO2015001316A1/fr

Links

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
    • A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
    • A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band

Definitions

  • This spedficaiion discloses a curling bar for curling sheet material, which has particular but not exclusive application to use in a machine for making smoking articles such as cigarettes.
  • curling bars have been used in cigarette making machines to predispose sheet materials such as tipping paper to wrap around the cylindrical form of the cigarette during manufacture.
  • the curling bar comprises a fixed longitudinal edge over which a sheet material is dragged to reduce localised stresses on one side and thereby providing the sheet material with a predisposition to curl, which facilitates wrapping the sheet material around the cylindrical body of a cigarette or like smoking article.
  • a curling bar is described in US 3,962,957.
  • Embodiments of a ending machine described herein for making a curled sheet wrapper include a sheet wrapper source, the sheet wrapper having first and second surface portions, and a curling bar to curl the sheet material from the source, the bar including a first region including a curling edge over which the second surface portion of the sheet material is slidable so as to impart a curl thereto in said second surface portion, and a second region so configured that the first surface portion of the sheet material can pass without substantial sliding frictional engagement with said second region, the machine being so configured as to provide the sheet wrapper curled by the curling bar and patterned and unpatterned in said first and second surface portions respectively.
  • the curling edge of the curling bat may have a vertex that extends Iongitudinally of the bar and the second region may include a cut-out portion in the curling edge to allow passage of the patterned portion of the sheet material.
  • the second region may include a rotary portion configured to rotate about an axis extending longitudinally of the curling bar.
  • the rotary portion may have a surface pattern that is complimentary to the pattern of the patterned portion of the sheet so as to be rotated in substantial synchronism with the patterned sheet portion.
  • a patterning station maybe provided to apply a pattern to the second surface portion of the sheet material before, during or after curling by the curling bar.
  • the wrapper has been patterned in said second surface portion offline.
  • the machine may be configured for making smoking articles such as cigarettes, for example to curl sheet material in the form of tipping paper which is provided with patterned and unpatterned portions.
  • Also described herein is a method of curling sheet material with the curling bar that includes passing the first surface portion over the second region and the second surface portion over the first region.
  • a pattern may be applied to the first surface portion of the sheet material before, during or after curling with the curling bar, for example by embossing.
  • the sheet material maybe wrapped around a smoking article after curling with the curling bar, in the manufacture of the smoking article.
  • a sheet wrapper and a smoking article including the sheet wrapper having first and second patterned and unpatterned surface regions that have not and have been subject to curling respectively.
  • curling bar for curling sheet material that has a patterned surface portions and an unpatterned portion between the patterned portions.
  • the curling bar includes a first region including a curling edge over which the unpatterned first portion of the sheet material can be slid so as to impart a curl thereto in said first surface region, and second regions on opposite sides of the first region and so configured that the patterned portions of the sheet material can pass without substantial sliding frictional engagement whereby to maintain the pattern in the patterned portions.
  • Figure 1 is a schematic side view of components of a cigarette making machine that incorporates a curling bar for curling tipping paper;
  • Figure 2 is a schematic illustration of tipping paper with patterned and unpatterned portions when passing through a curling station illustrated in Figure 1;
  • Figures 3a-3d illustrate stages in the manufacture of cigarettes back-to-back using a partially patterned tipping paper
  • Figure 4 is a first example of a curling bar for use at the curling station in Figure 1; and Figure 5 is a second example of a curling bar for use at the curling station.
  • the tipping paper sheet material 1 comprises first surface portions 6-1, 6-2 and second surface portions 7-1, 7-2, 7-3.
  • the first and second surface portions 6, 7 are patterned and unpatterned respectively, with the first, patterned surface portions 6-1, 6-2 comprising parallel, longitudinal stripes that extend along the web of tipping paper 1.
  • the embossing has been formed in a prior process by means of an embossing roller but other embossing and patterning techniques will be evident to those skilled in the art.
  • the pattern may include a logo or typographic information which may be applied as a coating on either or both sides of the sheet material 1, with or without embossing.
  • the curling bar 5 reduces localised stress in surface la of the tipping paper 1.
  • the curling bar includes a longitudinal curling edge 8 with first regions 9-1, 9-2, 9-3 over which the second unpatterned portions 7-1, 7-2, 7-3 can be slid in frictional engagement so as to impart a curl to the tipping paper by stress release in at least its surface la.
  • the curling bar 5 includes second regions 10-1, 10-2 that are so configured that the first patterned portions 6-1, 6-2 can pass the curling bar without substantial sliding frictional engagement. In this way, the curling bar allows the pattern to remain in the patterned portions 6-1, 6-2, without being destroyed by the curling edge 8 of the curling bar 5.
  • the curling bar 5 is generally triangular in cross section to provide the longitudinally extending vertex 8 that provides the curling edge portions 9-1, 9-2, 9-3.
  • Portions 10-1, 10-2 that allow passage of the unpatterned portions 6-1, 6-2 comprise cut out regions 11-1, 11-2 in the vertex 8 of the curling edge.
  • the cut out regions 11-1, 11-2 are disposed on opposite sides of the curling edge portion 9-2 so that the curling bar can be used in a process to manufacture two cigarettes back-to-back with respective patterned filters, as described in more detail hereinafter.
  • FIG. 5 Another example of the curling bar 5 is illustrated in Figure 5, which includes fixed, generally oval sectioned regions 12-1, 12-2, 12-3 which correspond to the portions of the curling edge 9-1, 9-2, 9-3 shown in Figure 4.
  • the portions 12-1, 12-2, 12-3 engage with the unpatterned portions 7-1, 7-2, 7-3 of the tipping paper 1 to impart a curl by stress release in surface la, as previously described.
  • Between the portions 12-1, 12-2, 12-3 are arranged cylindrical, rotary portions 13-1, 13-2 that are configured to rotate about an axis X-X' that extends longitudinally of the curling bar 5.
  • the cylindrical, rotary portions 13-1, 13-2 are each provided with a patterned cylindrical exterior surface 14-1, 14-2 that is complimentary to the embossed pattern of portions 6-1, 6-2 of the tipping paper 1.
  • the unpatterned portions 7-1, 7-2, 7-3 pass over the fixed portions 12-1, 12-2, 12-3 of the curling edge 8 in sliding frictional engagement to release stresses in the surface la.
  • the patterned portions 6-1, 6-2 pass over the rotary portions 13-1, 13-2 and the pattern 14-1, 14-2 engages with the corresponding pattern on regions 6-1, 6-2 such that the rotary portions 13-1, 13-2 are rotated in synchronism with the tipping paper sheet 1 as it passes through the curling station. In this way, the rotary portions 13-1, 13-2 do not degrade the patterned portions 6-1, 6-2 of the tipping paper sheet 1.
  • the rotary portions 13-1, 13-2 are thus driven to rotate by the passage of the tipping paper 1 over the curling bar 5, but as an alternative, the rotary portions may be driven by an external motor and a servo system may be provided to control their speed of rotation to accord with the rate of travel of the tipping paper 1.
  • the tipping paper 1 passes under tension from the curling station 4 over guide rollers 15, 16 to a gluing station 17 at which an adhesive is applied to the surface la of the tipping paper. Thereafter, the tipping paper 1 passes to a cutting station 18 comprising a rotary cutting drum 19 with radially extending cutting blades 20, and a platen roller 21.
  • the knives 20 cut the tipping paper into successive segments 1' to be wrapped around successive cigarettes at a rolling station 22.
  • the rolling station 22 is operable to wrap the successive segments 1' of tipping paper around successive pairs of cigarettes which are assembled back-to- back.
  • one of the cigarette pairs includes a filter rod 23 of a length suitable for two cigarettes that is configured between first and second tobacco rods 24, 25.
  • the filter rod 23 may comprise cellulose acetate tow within a plugwrap (not shown) and other filter features may be included.
  • the tobacco rods may comprise tobacco or like smokeable material within a paper or like wrapper.
  • the configuration of filter and tobacco rods shown in Figure 3 maybe created in a peripheral groove formed on the exterior surface of a rolling drum (not shown) in the cigarette making machine.
  • one of the cut segments 1' with a coating of glue provided by gluing station 17 is wrapped around the configuration of tobacco and filter rods, 23, 24, 25 so as to glue the tobacco rods 24, 25 to opposite ends of the filter rod 23, as shown in Figure 3C.
  • the patterned portions 6-1, 6-2 form patterned rings around spaced regions of the filter rod 23.
  • the resulting arrangement is then passed to a separating station 26 illustrated in Figure 1, which includes a cutting blade to cut the filter rod 23 and produce two separate cigarettes, 27, 28 as illustrated in Figure 3D each with a respective ring 6-1, 6-2 of patterned tipping paper around the cigarette filter.
  • the first and second surface portions 6, 7 are patterned and unpatterned respectively, with the pattern having been applied e.g. by embossing in a preparation step before curling with the curling bar 5 at the curling station 4.
  • the patterning of the first surface portions 6 may be carried out as an offline preparation step for the supply roll 2 before it is installed in the machine shown in Figure 1.
  • the application of the pattern maybe carried out on line in the machine.
  • the roll 2 may comprise a roll of unpatterned wrapper and the guide roller 3 may be used as a patterning station to apply the pattern to the first portions 6 of the tipping paper 1 as it passes over the roller 3.
  • the cylindrical surface of the roller 3 may include patterned and unpatterned surface portions corresponding to the surface portions 6, 7 and additional pinch rollers (not shown) may be utilised to impress the surface pattern of roller 3 onto the tipping paper 1.
  • the pattern can be applied to the sheet material 1 after curling has been performed by the curling bar 5 to the first surface portions 6.
  • the roller 15 shown in Figure 1 maybe used as a patterning station in a similar way as just described for roller 3, with the roller 15 being formed with a suitable surface pattern to impress a pattern into the regions 6 after curling by the curling bar.
  • the patterning is performed offline after curling by the curling bar.
  • the rotary portions 13-1, 13-2 of the curling bar shown in Figure 5 can be configured as embossing rollers to act as a patterning station so that the pattern is applied to the first portions 6-1, 6-2 during curling by the curling bar 5.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)

Abstract

L'invention concerne une machine à rouler permettant d'enrouler un premier matériau en feuille qui comprend des première et seconde parties de surfaces présentant ou non des motifs, comprenant une barre d'enroulement qui présente une première région comprenant un bord d'enroulement sur lequel la seconde partie du matériau en feuille peut être coulissée afin de communiquer une courbe à celle-ci dans ladite première région de surface et une seconde région de surface conçue de sorte que la première région du matériau en feuille puisse passer sans sensiblement venir en prise coulissante par frottement avec ladite seconde région. La barre d'enroulement peut être utilisée dans une machine de fabrication de cigarettes pour enrouler une feuille de papier pour des cigarettes.
PCT/GB2014/051954 2013-07-03 2014-06-26 Machine à rouler WO2015001316A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1311948.2 2013-07-03
GBGB1311948.2A GB201311948D0 (en) 2013-07-03 2013-07-03 Curling Machine

Publications (1)

Publication Number Publication Date
WO2015001316A1 true WO2015001316A1 (fr) 2015-01-08

Family

ID=48999470

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2014/051954 WO2015001316A1 (fr) 2013-07-03 2014-06-26 Machine à rouler

Country Status (2)

Country Link
GB (1) GB201311948D0 (fr)
WO (1) WO2015001316A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017140684A2 (fr) 2016-02-15 2017-08-24 INSERM (Institut National de la Santé et de la Recherche Médicale) Procédés et compositions pharmaceutiques pour le traitement d'un dysfonctionnement cognitif postopératoire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962957A (en) 1974-09-10 1976-06-15 Hauni-Werke Korber & Co., Kg Curling device for webs of paper or the like
EP1358808A1 (fr) * 2002-05-03 2003-11-05 G.D S.p.A. Dispositif pour courber
EP2241672A1 (fr) * 2008-02-08 2010-10-20 Japan Tobacco Inc. Procédé de fabrication de matériau d'emballage de cigarette

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3962957A (en) 1974-09-10 1976-06-15 Hauni-Werke Korber & Co., Kg Curling device for webs of paper or the like
EP1358808A1 (fr) * 2002-05-03 2003-11-05 G.D S.p.A. Dispositif pour courber
EP2241672A1 (fr) * 2008-02-08 2010-10-20 Japan Tobacco Inc. Procédé de fabrication de matériau d'emballage de cigarette

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017140684A2 (fr) 2016-02-15 2017-08-24 INSERM (Institut National de la Santé et de la Recherche Médicale) Procédés et compositions pharmaceutiques pour le traitement d'un dysfonctionnement cognitif postopératoire

Also Published As

Publication number Publication date
GB201311948D0 (en) 2013-08-14

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