EP2477512B2 - Messerträger für eine schneidvorrichtung in strangmaschinen der tabak verarbeitenden industrie - Google Patents

Messerträger für eine schneidvorrichtung in strangmaschinen der tabak verarbeitenden industrie Download PDF

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Publication number
EP2477512B2
EP2477512B2 EP10755107.9A EP10755107A EP2477512B2 EP 2477512 B2 EP2477512 B2 EP 2477512B2 EP 10755107 A EP10755107 A EP 10755107A EP 2477512 B2 EP2477512 B2 EP 2477512B2
Authority
EP
European Patent Office
Prior art keywords
knife
roller
pressure roller
force
blade
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.)
Not-in-force
Application number
EP10755107.9A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2477512B1 (de
EP2477512A1 (de
Inventor
Michael Lüneburg
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.)
Koerber Technologies GmbH
Original Assignee
Hauni Maschinenbau GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=43530223&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2477512(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL10755107T priority Critical patent/PL2477512T5/pl
Publication of EP2477512A1 publication Critical patent/EP2477512A1/de
Publication of EP2477512B1 publication Critical patent/EP2477512B1/de
Application granted granted Critical
Publication of EP2477512B2 publication Critical patent/EP2477512B2/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A24C5/14—Machines of the continuous-rod type
    • A24C5/28—Cutting-off the tobacco rod

Definitions

  • Such knife carriers are used in the tobacco processing industry.
  • such knife carrier are integrated in extrusion machines.
  • the strands of tobacco, filter material or other stranded materials are cut into strand sections.
  • the knife carrier is rotatably driven about a rotation axis.
  • At least one knife holder, which carries a radially displaceable or adjustable knife or knife blade, is arranged on the circumference of the knife carrier. Different forces act on the knives. Due to the rotational speed of the knife carrier a centrifugal force F Flieh acts on the knife, the centrifugal force increases with increasing speed.
  • the DE 1 157 524 is a knife holder on cutting devices in extrusion machines known in which the knife is held in the knife holder by two roller elements.
  • a roller element is designed as a drive roller.
  • the drive roller serves as a feed element for the knife for radially adjusting the blade outwards and inwards. In principle, however, the drive roller blocks the free rotation of the roller element in both directions of rotation. Between the fixed drive roller and the knife therefore acts a frictional force, namely the Haftreibkraft F Haft 1 .
  • the second roller element is designed as a pressure roller.
  • the pressure roller is spring-loaded.
  • the pressure roller is associated with a spring element, so that the pressure roller is pressed with a spring force F spring against the knife.
  • the spring element is oriented obliquely to the knife, such that a component of the spring force F spring , namely F N / spring , acts perpendicular to the knife and another component, namely F radial / spring , radially outward of the cutting force F cut counteracts.
  • F Roll CR x F N
  • F Flieh / And on the pressure roller.
  • the pressure roller is guided in an obliquely extending to the knife guide channel, in which, moreover, the spring element is guided, the centrifugal force F Flieh / And the pressure roller is divided into a component F N / Flieh / And , which acts perpendicular to the knife and another component, namely F radial / Flieh / And , which acts radially outward against the cutting force F cut .
  • the normal force F N is thus composed of the two force components F N / spring and F N / Flieh / And .
  • Prerequisite for holding the knife in the knife holder is that F Hold > F Fly and F Hold > F Cut .
  • the previous holding force F hold is sufficient to counteract the centrifugal force F Flieh of the blade. More precisely, the holding force F Hold > F Flieh .
  • the requirements or boundary conditions for strand cutting have changed.
  • the strands to be cut in particular the filter strands on particles such as hard granules or the like, which are compared to the actual strand material significantly harder.
  • the knife in the strand encounters particles that present increased resistance, which increases the cutting force.
  • the known device has the disadvantage that the applied holding force is limited, so that the risk exists that the knife is pushed radially inwardly into the knife holder due to the increased cutting force.
  • the invention is thus based on the object to provide a device which ensures an increased holding force of the blade, in particular in the radially inward direction.
  • the pressure roller is provided with a freewheel, such that the free rotation of the pressure roller is blocked radially inward, while the free rotation is given radially outward.
  • the free rotation radially inward directed refers to the direction of rotation in the area of the contact surface between the pressure roller and the knife.
  • the blocking or blocking of the free rotation of the pressure roller in the direction mentioned provides an effective abutment for the cutting force F section .
  • the rolling friction of the pressure roller is at least at the radially inwardly applied load (knife is pushed inwards into the knife holder or cutting force acts on the knife) replaced by stiction.
  • the invention makes it possible to increase the holding force F Halt without increasing the normal force F N , ie the contact force of the pressure roller acting perpendicular to the blade, on the blade.
  • the freewheel allows a structurally simple implementation of the principle of the invention. The freewheel blocks the free rotation in a desired direction of rotation while maintaining the free rotation in the other direction.
  • At least one roller element preferably the pressure roller, associated with a spring element for exerting a force acting on the knife.
  • the spring element reinforces the holding force (by increasing the normal force) for the knife, so that higher loads on the knife, so increased centrifugal forces and increased cutting forces can be realized without moving the knife undesirable.
  • an advantageous development of the invention is characterized in that the spring element is aligned substantially perpendicular to the knife, such that the force applied by the spring element acts substantially perpendicular to the knife.
  • the spring element is aligned substantially perpendicular to the knife, such that the force applied by the spring element acts substantially perpendicular to the knife.
  • design-related and / or assembly-related deviations from the vertical alignment of the spring element to the knife are also covered by the claim.
  • the full spring force can be used.
  • Such a spring force then acts independently of the cutting force on the knife.
  • the knife carriers or knife holders shown in the drawing serve to receive and hold a knife or knife blade for cutting devices in extrusion machines of the tobacco-processing industry.
  • the invention will be described with reference to a single knife holder.
  • a knife carrier is assigned a plurality of knife holders distributed uniformly over the circumference of the knife carrier.
  • the Indian FIG. 1 schematically illustrated blade carrier 10 is a preferably drum-like element.
  • the knife carrier 10 can be driven in rotation about the rotation axis R by means of a drive (not shown).
  • the blade carrier 10 is usually part of a cutting device in extrusion machines of the tobacco processing industry for cutting filter strands, tobacco strands or the like. However, the knife carrier 10 can also be used in other devices for cutting stranded products.
  • the knife carrier 10 comprises at least one knife holder 11. Preferably and as in the FIG. 1 shown, the knife carrier 10 but a plurality of knife holder 11 are assigned. Preferred are the blade holder 11 distributed on the outside of the circumference of the blade carrier 10 evenly over the circumference.
  • each knife holder 11 By rotation of the knife carrier 10, the knife holder 11 also rotate circumferentially, wherein they meet at least one point on the strand to be cut 12 and cut it.
  • the arrangement and design of the knife carrier 10 to the strand 12 is purely exemplary and not limited to the illustrated embodiment.
  • the knife carrier 10 and / or each knife holder 11 inclined, for example, at an angle and / or twisted to the strand 12.
  • each knife holder 11 may be arranged fixed or adjustable on the knife carrier 10.
  • the or each blade holder 11 can also be designed and set up to carry out a relative movement to the blade carrier 10.
  • Each knife holder 11 is designed and arranged for displaceably receiving a knife 13, which may be designed as a knife blade or the like.
  • the knife 13 is arranged in the knife holder 11 such that an adjustment of the knife 13 in the radial direction of the knife carrier 10 is ensured.
  • the adjustability is used, in particular, to readjust the blades 13.
  • the blades 13 are subject to wear and tear.
  • the knives 13 are reground and thereby shortened, which is why, in particular, a feed of the knives 13 is necessary.
  • the adjustment is possible in radially inward and radially outward direction.
  • the knife 13 is held and / or guided in the knife holder 11 by rotatable roller elements 14.
  • Roller elements 14 can be both single roles as well as formed from several roles.
  • the roller elements 14 are arranged on mutually opposite sides of the blade 13, so that the blade 13 is held between at least two roller elements 14.
  • the roller elements 14 are formed as a pressure roller 15 or drive roller 16.
  • a roller element 14 is designed as a drive roller 16.
  • the drive roller 16 opposite roller element 14 is formed as a pressure roller 15.
  • the drive roller 16 is used for the radial adjustment of the blade 13 radially inward and radially outward. Radially inwardly refers to the adjustment of the blade 13 in the direction of the axis of rotation R, so that the knife 13 is pushed or pulled into the blade holder 11 into it. Radial outward refers to the opposite direction away from the axis of rotation R, so that the knife 13 is pushed or pushed out of the knife holder 11.
  • the free rotation of a drive roller 16 is blocked or locked in both directions of rotation.
  • the free rotation of the pressure roller 15 is blocked or locked in a rotational direction, namely radially inwardly to the axis of rotation R of the blade
  • FIG. 2 a knife holder 11 is shown schematically, in which the knife 13 is held on one side by a drive roller 16 and on the opposite side by a pressure roller 15.
  • the drive roller 16 is locked in the free movement in both directions of rotation by the drive means 17, for example a rack or the like.
  • the driving roller 16 stands so that between the driving roller 16 and the blade 13, which is in contact with the driving roller 16, a sticking friction force F stick 1 acts. Only the actuation of the drive means 17 leads to a rotational movement of the drive roller 16 for adjusting the blade 13 radially inwards or outwards.
  • the pressure roller 15 is inventively provided with a freewheel (approved freewheeling direction according to arrow F free ), so that the free rotation of the pressure roller 15 is locked in one direction.
  • the free rotation of the pressure roller 15 is given at an adjustment of the blade 13 radially outward, while the free rotation of the pressure roller is locked at an adjustment of the blade 13 radially inwardly.
  • the pressure roller 15 rolls on the blade 13, as it were, so that a rolling friction force F roll acts between the blade 13 and the pressure roller 15.
  • the freewheel locks the free rotation of the pressure roller 15 so that a Haftreibkraft F adhesion 2 between the pressure roller 15 and the knife 13 acts.
  • the Haftreibkraft F Haft 2 is greater than the rolling friction force F Roll .
  • the embodiment according to FIG. 4 is substantially according to the embodiment according to FIG. 2 , So with a drive roller 16 and a Pressure roller 15, formed.
  • the pressure roller 15 but a pressing element 22 is assigned.
  • the pressing member 22 may be formed in various known ways.
  • a toggle arrangement is provided.
  • the pressure roller 15 is connected to a first lever 23 which is fixedly arranged, for example, on the knife carrier 10.
  • a second lever 24 connects the pressure roller 15 with another roller 25, which is designed for rolling on a rolling surface 26, wall or the like.
  • the roller 25 is associated with an actuating element, which is formed in the example described from a mass 27 and a spring 28.
  • a holding force can be applied, which can be reinforced by the mass 27, in particular in the case of rotation of the knife carrier 10, in which the mass is forced outward by the centrifugal force and increases the holding force on the pressure roller 15.
  • FIG. 3 a knife holder 11 is shown schematically, in which the rotatability of all roller elements 14 is blocked in each direction.
  • the knife 13 is held on both sides by roller elements 14 which are respectively blocked or locked in both directions of rotation.
  • the one roller element 14 is a drive roller 16, which is locked in the free rotational movement by the drive means 17, for example by the rack or the like.
  • the driving roller 16 stands so that between the driving roller 16 and the blade 13, which is in contact with the driving roller 16, a sticking friction force F stick 1 acts. Only the actuation of the drive means 17 leads to a rotational movement of the drive roller 16 for adjusting the blade 13 radially inwards or outwards.
  • the drive means 17, 19 are synchronized, so that the adjustment of the blade 13 takes place radially outward and inward optimized.
  • At least one roller element 14 may be associated with a spring element 20.
  • the pressure roller 15 is spring-loaded, wherein the spring element 20 presses the pressure roller 15 against the blade 13.
  • the spring element 20 is arranged such that the spring force F spring acts perpendicular to the knife 13.
  • the spring element 20 may also be arranged obliquely to the knife 13.
  • the spring element 20 may be arranged in a guide channel 21 which is oblique to the knife 13 and in which the pressure roller 15 is guided.
  • the guide channel 21 is directed obliquely forward and outward, namely preferably directed at an angle ⁇ to the blade 13, where ⁇ ⁇ 90 ° (see FIG. 2 ).
  • the knife holder 11 can also have two or more roller elements 14 on each side of the knife 13.
  • the knife 13 is held by two spring-loaded pressure rollers in the knife holder 11, and the adjustment of the blade 13 is achieved radially outwardly and inwardly by separate drive means.
  • the drive rollers 16, 18 may be spring-loaded.
  • each drive roller 16, 18 can be brought into contact with the blade 13 via a spring-actuated toggle lever arrangement or the like.
  • each Haftreib in both directions of rotation or adjustment of the blade 13 each Haftreib element, namely on the one hand, the Haftreibkraft F Haft 1 and on the other hand, the Haftreibkraft F Haft 2 .
  • a holding force F stop generated which consists of two Haftreib adoptedn (F Haft 1 and F Haft 2 ) and on the one hand against the centrifugal force F Flieh and on the other hand against the cutting force F section . acts.

Landscapes

  • Preliminary Treatment Of Fibers (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Turning (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Crushing And Grinding (AREA)
EP10755107.9A 2009-09-15 2010-09-02 Messerträger für eine schneidvorrichtung in strangmaschinen der tabak verarbeitenden industrie Not-in-force EP2477512B2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10755107T PL2477512T5 (pl) 2009-09-15 2010-09-02 Wspornik noży dla urządzenia tnącego w maszynach do wytwarzania wałków przemysłu tytoniowego

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009041776A DE102009041776A1 (de) 2009-09-15 2009-09-15 Messerträger für eine Schneidvorrichtung in Strangmaschinen der Tabak verarbeitenden Industrie
PCT/EP2010/005611 WO2011032676A1 (de) 2009-09-15 2010-09-02 Messerträger für eine schneidvorrichtung in strangmaschinen der tabak verarbeitenden industrie

Publications (3)

Publication Number Publication Date
EP2477512A1 EP2477512A1 (de) 2012-07-25
EP2477512B1 EP2477512B1 (de) 2015-02-25
EP2477512B2 true EP2477512B2 (de) 2018-03-21

Family

ID=43530223

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10755107.9A Not-in-force EP2477512B2 (de) 2009-09-15 2010-09-02 Messerträger für eine schneidvorrichtung in strangmaschinen der tabak verarbeitenden industrie

Country Status (5)

Country Link
EP (1) EP2477512B2 (pl)
CN (1) CN102481018B (pl)
DE (1) DE102009041776A1 (pl)
PL (1) PL2477512T5 (pl)
WO (1) WO2011032676A1 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110237A1 (it) * 2011-04-29 2012-10-30 Gd Spa Testa di taglio di almeno un baco continuo in macchina per la produzione di articoli da fumo.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377064A (en) † 1931-10-27 1932-07-21 Muller J C & Co Improvements in or relating to cutting apparatus for cigarette making machines
GB614997A (en) † 1946-08-07 1948-12-30 George Dearsley Improvements in or relating to tobacco cutting machines
US4364402A (en) † 1979-05-29 1982-12-21 Hauni-Werke Korber & Co. Kg Apparatus for automatic compensation of wear upon orbiting knives in tobacco cutting machines or the like
US4984491A (en) † 1986-02-13 1991-01-15 Comas S.P.A. Rotary cutting head, particularly for tobacco cutting machines

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1664050A (en) * 1926-08-21 1928-03-27 American Mach & Foundry Cigarette-machine cut-off
US1914756A (en) * 1931-10-27 1933-06-20 Muller J C & Co Cutting apparatus for cigarette making machines
DE1157524B (de) 1961-06-16 1963-11-14 Hauni Werke Koerber & Co Kg Messerhalterung an Schneidvorrichtungen in Strangmaschinen, insbesondere Zigarettenstrangmaschinen
GB1175200A (en) * 1966-12-29 1969-12-23 Hauni Werke Koerber & Co Kg Rotating Cutting Device.
US5557997A (en) * 1994-04-06 1996-09-24 Paper Converting Machine Company Apparatus for transverse cutting
IT1279717B1 (it) * 1995-12-21 1997-12-16 Gd Spa Dispositivo di taglio per bachi continui di sigaretta
DE10227218A1 (de) * 2002-06-18 2004-01-08 Focke & Co (Gmbh & Co) Vorrichtung zum Durchtrennen eines Tabakstrangs
CN2822245Y (zh) * 2005-08-29 2006-10-04 将军烟草集团有限公司 烟条切割装置中进刀盒平行度调整装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB377064A (en) † 1931-10-27 1932-07-21 Muller J C & Co Improvements in or relating to cutting apparatus for cigarette making machines
GB614997A (en) † 1946-08-07 1948-12-30 George Dearsley Improvements in or relating to tobacco cutting machines
US4364402A (en) † 1979-05-29 1982-12-21 Hauni-Werke Korber & Co. Kg Apparatus for automatic compensation of wear upon orbiting knives in tobacco cutting machines or the like
US4984491A (en) † 1986-02-13 1991-01-15 Comas S.P.A. Rotary cutting head, particularly for tobacco cutting machines

Also Published As

Publication number Publication date
EP2477512B1 (de) 2015-02-25
CN102481018A (zh) 2012-05-30
PL2477512T5 (pl) 2018-08-31
EP2477512A1 (de) 2012-07-25
CN102481018B (zh) 2015-04-29
DE102009041776A1 (de) 2011-03-24
WO2011032676A1 (de) 2011-03-24
PL2477512T3 (pl) 2015-07-31

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