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EP4563015A1 - Dispositif de fabrication pour fabriquer des tiges de l'industrie du tabac et procédé de fabrication de tiges de l'industrie du tabac - Google Patents

Dispositif de fabrication pour fabriquer des tiges de l'industrie du tabac et procédé de fabrication de tiges de l'industrie du tabac Download PDF

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Publication number
EP4563015A1
EP4563015A1 EP23212829.8A EP23212829A EP4563015A1 EP 4563015 A1 EP4563015 A1 EP 4563015A1 EP 23212829 A EP23212829 A EP 23212829A EP 4563015 A1 EP4563015 A1 EP 4563015A1
Authority
EP
European Patent Office
Prior art keywords
strand
filling material
winding roller
unit
crimping
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.)
Pending
Application number
EP23212829.8A
Other languages
German (de)
English (en)
Inventor
Bartosz Cieslikowski
Robert SKIERCZYNSKI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Tobacco Machinery Poland Sp zoo
Original Assignee
International Tobacco Machinery Poland Sp zoo
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 International Tobacco Machinery Poland Sp zoo filed Critical International Tobacco Machinery Poland Sp zoo
Priority to EP23212829.8A priority Critical patent/EP4563015A1/fr
Priority to PCT/EP2024/083999 priority patent/WO2025114485A1/fr
Publication of EP4563015A1 publication Critical patent/EP4563015A1/fr
Pending legal-status Critical Current

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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
    • 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
    • A24D3/0295—Process control means

Definitions

  • the object of the present invention is a manufacturing device for manufacturing tobacco industry rods and a method of manufacturing tobacco industry rods.
  • a strand is formed consisting of many narrow strands loosely coupled together, with the material fibers separated from each other.
  • This structure has increased filtration properties, as the surface area absorbing smoke particles is increased and the resistance to airflow through the manufactured filter is increased.
  • manufacturing such a structure involves an increase in the width of the strand in the free state, and the risk of longitudinal wrinkles is increased, which may reduce the finished filter rods' quality due to variation in resistance values.
  • the longitudinal tension of the filling material strand is as low as possible immediately before wrapping the filling material in the wrapper, so that when the finished rod is manufactured, the section of the crimped material strand placed in the rod does not visibly shorten and/or cause wrinkling of the wrapper.
  • the longitudinal creases that occur during the manufacturing process cause a change in the parameter relating to the resistance to airflow in the finished rod or in the sections of the rod that are placed in the mouthpieces of smoking articles.
  • This parameter is described as the pressure drop of flowing air. It is important that before changing the form of the strand from a flat web to a circular strand, the strand should be acted upon to expand and smooth the material strand, reducing the risk of longitudinal creases and subsequently taking a strand of material with increased width to form a continuous rod.
  • WO2013098353A1 and WO2015097127A1 show feeding devices for a manufacturing device for manufacturing rods.
  • the feeding devices disclosed therein comprise a crimping device and a compacting device for forming a continuous rod, wherein a strand of the filling material passes directly from the crimping device to the compacting device.
  • Document EP3469923A1 shows a manufacturing device in which a strand of the filling material is also directly fed to the compacting device before forming a continuous rod.
  • the object of the invention is a manufacturing device for manufacturing tobacco industry rods from a continuous rod manufactured from a crimped strand of a filling material, comprising: a feeding unit for feeding a strand of the filling material, a crimping unit comprising crimping drums for crimping the strand of the filling material in a form of a flat web, a wrapper feeding unit for feeding a tape of a wrapper, a compacting unit for forming the strand of the filling material into a form of a circular strand, a forming unit for forming a continuous rod by wrapping the crimped strand of the filling material into the tape of the wrapper which is transported by a garniture belt and sealed by an adhesive supplied from an adhesive apparatus, a cutting head for cutting the continuous rod into individual rods, wherein the crimped strand of the filling material fed from the crimping unit in the form of a flat web at a first linear speed changes its cross-sectional shape from flat to circular and is
  • the first winding roller may have a lateral surface in the shape of a cylinder.
  • the first winding roller may have a lateral surface in the shape of a barrel.
  • the lateral surface of the first winding roller may have helically shaped elements with opposite directions of spiral inclination, which are arranged symmetrically with respect to a plane of symmetry of the first winding roller and are designed to increase a first width of the filling material strand to a second width of the filling material strand.
  • the second linear velocity of the lateral surface of the first winding roller can be greater than the first linear velocity of the fed material strand by a value in the range of 10 to 30%, preferably by a value in the range of 15 to 25%.
  • the second linear speed of the lateral surface of the first winding roller can be 20% greater than the first linear speed of the fed strand of the filling material.
  • the tensioning unit may further comprise a second winding roller and a tensioning roller, wherein said rollers are positioned relative to the feed path of the material strand such that the filling material strand winds around the first winding roller, the tensioning roller and the second winding roller.
  • the tensioning unit may comprise a second drive unit of the second winding roller for imparting a second angular velocity so that the third linear velocity of the lateral surface of the second winding roller is greater than the fourth linear velocity of the garniture belt in the forming unit.
  • Another object of the present invention is a method for manufacturing tobacco industry rods from a continuous rod of a crimped filling material strand, comprising the steps of: unwinding a strand of the filling material; crimping the filling material strand, in the form of a flat web, in a crimping unit comprising crimping drums for crimping the filling material strand; feeding the crimped strand of the filling material to a compacting unit; compacting the strand of the filling material in the compacting unit to form a strand with a circular cross-section; feeding and transporting the tape of a wrapper on the garniture belt in the forming unit; moving the strand of the filling material along a feeding path so that the strand of the filling material winds around the first winding roller, and tensioning the strand of the filling material between the crimping unit and the compacting unit by means of a tensioning unit; forming a continuous rod by wrapping the crimped filling material strand in
  • the second linear velocity of the lateral surface of the first winding roller can be greater than the first linear velocity of the fed material strand by a value in the range of 10 to 30%, preferably by a value in the range of 15 to 25%.
  • the second linear speed of the lateral surface of the first winding roller can be 20% greater than the first linear speed of the fed material strand.
  • the method may comprise moving the strand of the filling material such that the strand of the filling material winds around the first winding roller, the tension roller and the second winding roller.
  • the method may comprise imparting a second angular velocity to the second winding roller so that the third linear velocity of the lateral surface of the second winding roller is greater than the fourth linear velocity of the garniture belt in the forming unit.
  • the method may comprise increasing a first width of the filling material strand at the crimping unit to a second width of the filling material strand at the first winding roller and subsequently decreasing the second width of the filling material strand between the winding roller and the compacting unit.
  • the tensioning device ensures that a strand of the filling material is effectively distributed transversely to the material feed direction and that a strand of material is tensioned in the direction along the material strand, thus eliminating the risk of longitudinal creases, which increases the efficiency of the production line.
  • the use of a tensioning device ensures that the stresses in the filling material inside the rod are eliminated during rod manufacturing and no deformation of the rod occurs after it is manufactured. Reducing the tension of the expanded strand of the filling material facilitates the longitudinal movement of strands of the filling material relative to each other, so longitudinal stresses in the filling material in the finished product are reduced and a uniform filling material structure is achieved.
  • a manufacturing device 1 for the tobacco industry is used for manufacturing rods R from a continuous rod CR of a crimped strand of a filling material 2.
  • the device 1 comprises a supplying part 3 and a forming part 4.
  • the filling material can be a cellulose-based or other fibrous material of plant origin, or a plastic material.
  • the supplying part 3 comprises a supplying unit 5 for feeding a strand of the filling material 2, and a crimping unit 6 with crimping drums 7, 8 for crimping the strand of the filling material 2.
  • the strand of the filling material 2 is unwound from a roll 9.
  • the crimped strand of the filling material 2 is fed from the crimping unit 6 in the form of a flat web at a first linear speed v1 and is compacted in a compacting unit 10 in the forming part 4.
  • a tensioning device 11 is provided in the supplying part 3 to maintain the proper tension of the strand of the filling material 2.
  • a forming unit 12 comprising a garniture bar 13 and an adhesive apparatus 14. Additionally, the device 1 comprises a feeding unit 15 for feeding a tape of a wrapper 16.
  • the compacting unit 10 is configured to form a strand of the filling material 2' in the form of a circular strand and feed the filling material 2' to the forming unit 12, which forms a continuous rod CR by wrapping the crimped strand of the filling material 2' in the tape of the wrapper 16.
  • the forming unit 12 is provided with a garniture belt 17 for transporting the wrapper 16 and the formed continuous rod CR.
  • the adhesive apparatus 14 is adapted for feeding adhesive to close the wrapper 16 of the continuous rod CR.
  • the continuous rod CR is cut into single rods R by a cutting head 18.
  • a tensioning device 11 which comprises a first winding roller 21 is positioned between a crimping unit 6 with the crimping drums 7, 8, and the compacting unit 10.
  • the first winding roller 21 is positioned relative to a feed path P of the filling material strand 2 so that the filling material strand 2 winds around the first winding roller 21.
  • the tensioning device 11 comprises a first drive unit 19 of the first winding roller 21 for imparting a first angular velocity ⁇ 1 such that the second linear velocity v2 of the lateral surface 24 of the first winding roller 21 is greater than the first linear velocity v1 of the filling material strand 2 being fed.
  • a friction force T is generated ( Fig. 2a ), which is directed according to the direction of movement of the filling material strand 2 between the crimping unit 6 and the first winding roller 21.
  • the force T constitutes a pulling force for the strand of the filling material 2 and causes the strand of the filling material 2 to be tensioned between the crimping unit 6 and the first winding roller 21, wherein a slippage occurs between the lateral surface 24 of the first winding roller 21 and the strand of the filling material 2.
  • the slippage zone is designated as C.
  • the second linear velocity v2 of the lateral surface 24 is greater than or equal to the fourth velocity v4 of the garniture belt 17 in the forming unit 12 and therefore is also greater than the velocity of the tape of the wrapper 16.
  • a tensioning device 11' is situated between the crimping unit 6 with the crimping drums 7, 8, and the compacting unit 10, which comprises the first winding roller 21, the second winding roller 22 and a tensioning roller 23.
  • the rollers 21, 22, 23 are located with respect to the feed path P' of the filling material strand 2 so that the filling material strand 2 winds around the first winding roller 21, the tensioning roller 23, and the second winding roller 22.
  • the tensioning roller 23 tensions the filling material strand 2 due to the force of gravity or by using a spring element (not shown).
  • the tensioning device 11' comprises a first drive unit 19 of the first winding roller 21 for imparting a first angular velocity ⁇ 1 such that the second linear velocity v2 of the lateral surface 24 of the first winding roller 21 is greater than the first linear velocity v1 of the fed filling material strand 2. Due to the difference in velocity, the filling material strand 2 is tensioned between the crimping unit 6 and the first winding roller 21, wherein there is a slippage between the lateral surface 24 of the first winding roller 21 and the filling material strand 2.
  • the tensioning device 11' comprises a second drive unit 20 for imparting a second angular velocity ⁇ 2 to the second winding roller 22 so that the third linear velocity v3 of the lateral surface 27 of the second winding roller 21 is substantially equal to the first linear velocity v1.
  • the third linear velocity v3 of the lateral surface 27 is greater than or equal to the fourth linear velocity v4 of the garniture belt 17 in the forming unit 12 and therefore is also greater than the velocity of the tape of the wrapper 16.
  • the first winding roller 21 may have a cylindrical lateral surface 24, as shown in Fig. 4 .
  • two spiral-shaped elements 25, 26 with opposite directions of spiral inclination are arranged on the lateral surface 24'. These elements 25, 26 are symmetrically arranged with respect to the plane S, and the angle of inclination ⁇ of the helix with respect to the plane S for both helically shaped elements 25, 26 is the same.
  • the elements 25, 26 are arranged along the axis of rotation k.
  • the helically shaped elements 25, 26 may be convex above the lateral surface 24'.
  • FIG. 6 shows the first winding roller 21" in the third embodiment, in which the lateral surface 24" is in the form of a barrel.
  • Fig. 7 two spiral-shaped elements 25', 26' are arranged on the lateral surface 24′′′ of the first winding roller 21'". Similar to the second embodiment, these elements are arranged symmetrically with respect to the plane S, and the angle of inclination ⁇ of the spiral with respect to the plane S for both elements 25, 26 is the same.
  • the filling material strand 2 coming out of the crimping unit 6 has a first width W1.
  • the width of the filling material strand 2 is greater than the defined width W1.
  • the spiral elements 25, 26, 25', 26' are designed to increase the first width W1 of the filling material strand 2 at the crimping unit 6 to the second width W2 of the filling material strand 2 at the first winding roller 21.
  • the spiral elements 25, 26, 25', 26' act on the filling material strand 2 so as to provide stretching and smoothing of the filling material strand 2 in a direction transverse to the direction of movement of the filling material strand 2, preventing the formation of longitudinal creases on the material.
  • the effect of extending and smoothing the material by stretching in the transverse direction is enhanced if there is slippage between the strand of the filling material 2 and the lateral surface 24, 24', 24", 24′′′ of the first winding roller 21, 21', 21", 21'".
  • Stretching the strand of the filling material 2 is necessary because the width of the strand of the filling material 2 increases after crimping in the free state due to the change of material structure, which poses the risk of longitudinal creases.
  • the strand of the filling material 2 is unwound from the roll 9.
  • the strand of the filling material 2 passes through the unit 6 of the crimping drums 7, 8, where the strand of the filling material 2 in the form of a flat web is crimped.
  • the crimped strand of the filling material 2 is fed to the compacting unit 10, where the strand of the filling material 2 is compacted into a strand 2' of a circular cross-section and is fed to the forming unit 12.
  • the continuous rod CR is formed by wrapping the crimped strand of the filling material 2 into the tape of the wrapper 16, transported by means of a garniture belt 17, and closed by means of an adhesive fed from the adhesive apparatus 14.
  • the tape of the wrapper 16 is fed from the feeding unit 15.
  • the continuous rod CR thus formed is fed toward the cutting head 18, which cuts the continuous rod CR into single rods R.
  • the strand of the filling material 2 is tensioned by a tensioning device 11, 11', in which the strand of the filling material 2 moves along the feeding path P, P'.
  • the feeding path P runs so that the filling material strand 2 winds around the first winding roller 21. Further downstream of the tensioning device 11, the filling material strand 2 reduces its width, moves to the compacting unit 10, and then to the forming unit 12.
  • the tensioning device 11 drives the first winding roller 21 with a first angular velocity ⁇ 1 so that the second linear velocity v2 of the lateral surface 24, 24', 24", 24′′′ of the first winding roller 21, 21', 21", 21′′′ is greater than the first linear velocity v1 of the fed strand of material 2.
  • the first winding roller 21 and the strand of material 2 are shown in an enlarged view in Fig. 2a .
  • the second linear velocity v2 of the lateral surface 24, 24', 24", 24′′′ of the first winding roller 21, 21', 21", 21′′′ may be greater than the first linear velocity v1 of the fed material strand 2 by a value in the range from 10 to 30%, preferably from 15 to 25%, and optimally is greater by 20%.
  • the fourth linear speed v4 of the garniture belt 17 and the continuous rod CR is equal to or less than the second linear speed v2, so that the tension of the filling material strand 2' is reduced.
  • the tension of the filling material strand 2' on the section BC i.e., between the crimping drums 7, 8 and the first winding roller 21, is greater than that on the preceding section AB upstream of the crimping drums 7, 8.
  • the tension in the filling material strand 2' is less than that upstream of the first winding roller 21.
  • first cylindrical winding roller 21' with spiral elements 25, 26, 25', 26' or a first barrel-shaped winding roller 21" or a first barrel-shaped winding roller 21′′′ with spiral elements 25, 26, 25', 26' allows for an increase in the first width W1 of the filling material strand 2 at the crimping unit 6 to the second width W2 of the filling material strand 2 at the first winding roller 21. Subsequently, there is a decrease in the width W2 of the filling material strand 2 between the winding roller 21 and the compacting unit 10, as shown in Fig. 2b .
  • the feed path P' is arranged such that the filling material strand 2 winds around the first winding roller 21, the tensioning roller 23, and then the second winding roller 22.
  • the tensioning roller 23 applies tension to the filling material strand and adjusts its position in response to changes in the length of the filling material strand 2 between the first winding roller 21 and the second winding roller 22 under the influence of gravity or a force exerted by an elastic element. These changes in length may be due to temporary differences in the speed of the crimping unit 6 and the forming unit 12. Further downstream of the tensioning device 11', the filling material strand 2 narrows in width and is moved to the compacting unit 10 and then to the forming unit 12.
  • the first winding roller 21 is driven with a first angular velocity ⁇ 1, so that the second linear velocity v2 of the lateral surface 24, 24', 24", 24′′′ of the first winding roller 21, 21', 21", 21′′′ is greater than the first linear velocity v1 of the fed material strand 2.
  • the tension of the filling material strand 2 between the crimping unit 6 and the tensioning device 11' is increased.
  • the second linear velocity v2 of the lateral surface 24, 24', 24", 24′′′ of the first winding roller 21, 21', 21", 21′′′ may be greater than the first linear velocity v1 of the fed material strand 2 by a value in the range from 10 to 30%, preferably from 15 to 25%, and optimally is greater by 20%.
  • the fourth linear speed v4 of the garniture belt 17 and the continuous rod CR is equal to or less than the third linear speed v3 of the filling material strand 2 downstream of the tensioning device 11', so that the tension of the filling material strand 2' is reduced.
  • the tension of the filling material strand 2 on the section BC i.e., between the crimping drums 7, 8 and the first winding roller 21, is greater than on the preceding section AB upstream of the crimping drums 7, 8.
  • the tension of the filling material strand 2 is essentially unchanged compared to section BC, while on section DE, i.e., between the second winding roller 22 and the inlet to the forming unit 12, the tension in the filling material strand 2' is lower than upstream of the first winding roller 21.
  • the transformation of the filling material strand 2 from a flat web to the filling material strand 2' with a circular cross-section is carried out at a low tension, which allows for an even distribution of the filling material 2 in the finished rod R.

Landscapes

  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
EP23212829.8A 2023-11-28 2023-11-28 Dispositif de fabrication pour fabriquer des tiges de l'industrie du tabac et procédé de fabrication de tiges de l'industrie du tabac Pending EP4563015A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP23212829.8A EP4563015A1 (fr) 2023-11-28 2023-11-28 Dispositif de fabrication pour fabriquer des tiges de l'industrie du tabac et procédé de fabrication de tiges de l'industrie du tabac
PCT/EP2024/083999 WO2025114485A1 (fr) 2023-11-28 2024-11-28 Dispositif de production pour la production de tiges de l'industrie du tabac et procédé de production de tiges de l'industrie du tabac

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP23212829.8A EP4563015A1 (fr) 2023-11-28 2023-11-28 Dispositif de fabrication pour fabriquer des tiges de l'industrie du tabac et procédé de fabrication de tiges de l'industrie du tabac

Publications (1)

Publication Number Publication Date
EP4563015A1 true EP4563015A1 (fr) 2025-06-04

Family

ID=89029643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23212829.8A Pending EP4563015A1 (fr) 2023-11-28 2023-11-28 Dispositif de fabrication pour fabriquer des tiges de l'industrie du tabac et procédé de fabrication de tiges de l'industrie du tabac

Country Status (2)

Country Link
EP (1) EP4563015A1 (fr)
WO (1) WO2025114485A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013098353A1 (fr) 2011-12-30 2013-07-04 Philip Morris Products S.A. Appareil et procédé pour la fourniture d'une bande continue de matériau crêpé en feuille
WO2015097127A1 (fr) 2013-12-23 2015-07-02 Philip Morris Products S.A. Procédé et appareil permettant de traiter un matériau de feuille continue
DE102017007455A1 (de) * 2017-08-08 2019-02-14 Hauni Maschinenbau Gmbh Maschine der Tabak verarbeitenden Industrie zur gleichzeitigen Herstellung mehrerer Stränge
EP3469923A1 (fr) 2017-10-13 2019-04-17 G.D. S.p.A Machine et procédé de fabrication d'articles de tabac en forme de tige
US20210392946A1 (en) * 2018-02-15 2021-12-23 Philip Morris Products S.A. Method and apparatus for folding a web of material

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013098353A1 (fr) 2011-12-30 2013-07-04 Philip Morris Products S.A. Appareil et procédé pour la fourniture d'une bande continue de matériau crêpé en feuille
WO2015097127A1 (fr) 2013-12-23 2015-07-02 Philip Morris Products S.A. Procédé et appareil permettant de traiter un matériau de feuille continue
DE102017007455A1 (de) * 2017-08-08 2019-02-14 Hauni Maschinenbau Gmbh Maschine der Tabak verarbeitenden Industrie zur gleichzeitigen Herstellung mehrerer Stränge
EP3469923A1 (fr) 2017-10-13 2019-04-17 G.D. S.p.A Machine et procédé de fabrication d'articles de tabac en forme de tige
US20210392946A1 (en) * 2018-02-15 2021-12-23 Philip Morris Products S.A. Method and apparatus for folding a web of material

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Publication number Publication date
WO2025114485A1 (fr) 2025-06-05

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