EP3680078B1 - Dispositif et procede de fabrication d'un fil pour l'industrie du tabac - Google Patents

Dispositif et procede de fabrication d'un fil pour l'industrie du tabac Download PDF

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Publication number
EP3680078B1
EP3680078B1 EP20150666.4A EP20150666A EP3680078B1 EP 3680078 B1 EP3680078 B1 EP 3680078B1 EP 20150666 A EP20150666 A EP 20150666A EP 3680078 B1 EP3680078 B1 EP 3680078B1
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EP
European Patent Office
Prior art keywords
roller
grooves
blades
strips
deflecting
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.)
Active
Application number
EP20150666.4A
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German (de)
English (en)
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EP3680078A1 (fr
Inventor
Jan-Hinrich KLINDWORTH
Steffen Peters
Thomas Busch
Sascha Elsner
Bastian KURTZ
Jan Blewonska
Marco El Gendy
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
Koerber Technologies 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
Application filed by Koerber Technologies GmbH filed Critical Koerber Technologies GmbH
Priority to EP23184847.4A priority Critical patent/EP4241941A3/fr
Publication of EP3680078A1 publication Critical patent/EP3680078A1/fr
Application granted granted Critical
Publication of EP3680078B1 publication Critical patent/EP3680078B1/fr
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Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D2007/1809—Means for removing cut-out material or waste by stripping fingers

Definitions

  • the invention relates to a device for producing a rod in the tobacco processing industry, comprising a device for severing a flat web of web material into a multiplicity of strips, comprising a separating device and a deflecting device, the separating device comprising a first roller and a second roller cooperating therewith , wherein the outer surfaces of the rollers in the axial direction alternately have grooves and blades that run in a closed manner in the circumferential direction of the respective roller and in an effective area the blades of the first roller engage in the grooves of the second roller and the blades of the second roller engage in the grooves of the first roller, and the separating device is set up to separate the flat web into a large number of adjacent strips, and the deflecting device comprises at least one deflecting element, the webs of which engage in the grooves of the first or the second roller.
  • the invention also relates to a method for producing a rod-shaped Article of the tobacco processing industry, wherein a strand is formed with an aforementioned device and the method comprises the following steps: Separating a flat web of web material into a plurality of strips, in which with a separating device, which has a first and a second cooperating with this comprises a roller, the flat web is separated into the plurality of adjacent strips, the lateral surfaces of the rollers in the axial direction alternately having grooves and blades running in a closed manner in the circumferential direction of the respective roller and in an effective area the blades of the first roller fit into the grooves of the second roller and the Blades of the second roller engage in the grooves of the first roller, with a deflecting device comprising at least one deflecting element whose webs engage in the grooves of the first or second roller, removing the strips from the grooves of the first or second roller with a deflecting device be removed.
  • a device for producing a strand which includes a separating device for separating a flat web, is based, for example DE 1 954 036 A out.
  • the flat web is cut into parallel strips using a disc knife cutting device. The strips are then combined in a strand and covered with a sheath.
  • a flat web of reconstituted tobacco material is processed.
  • the prepared and wrapped rod is cut into pieces of a predetermined length so that rod-shaped smoking articles can be manufactured.
  • a device which comprises a pair of cutting rollers for separating the flat web into the plurality of strips.
  • the apparatus also includes guide combs positioned so that the tines of the combs extend into the spaces between adjacent blades of the cutting rollers.
  • the device also includes cleaning combs, the tines of which also engage in the grooves between the blades.
  • a document shredder whose cutting mechanism is provided with a stripping device.
  • This stripping device comprises two stripping grids, the stripping webs of which are arranged in the gaps in the cutting rollers. The webs merge into plate-shaped areas.
  • Another document shredder which has two guide units. These guide units each include slots in which the cutting discs of the document shredder extend. Upstream and downstream of the slots for the cutting discs, the guide units have plate-shaped areas to which the webs are connected.
  • a device for producing a rod in the tobacco processing industry comprising a device for severing a flat web of web material into a plurality of strips, comprising a separating device and a deflecting device, the separating device having a first and a second interacting therewith roller, and wherein the lateral surfaces of the rollers in the axial direction alternately have grooves and blades running in a closed manner in the circumferential direction of the respective roller and in an effective area the blades of the first roller fit into the grooves of the second roller and the blades of the second roller fit into the grooves of the first roller engage, and the separating device is set up to separate the flat web into a large number of adjacent strips, and wherein the deflecting device comprises at least one deflecting element, the webs of which engage in the grooves of the first or the second roller, the device being further developed in that the at least one deflector is designed in sections as a plate-shaped deflector, which forms a closed surface downstream of the effective area of the
  • the plate-shaped deflector of the deflector extends outside the rollers.
  • the position of the deflector is to be understood in view of the following explanations.
  • the deflection device comprises at least one deflection element, in many cases two deflection elements, the webs of which run in regions in the grooves between adjacent blades of the roller. These sections or areas of the webs extend within the cylinder surface of the roll.
  • the outer circumferences of the blades of the roller span a cylinder surface.
  • the blades of the first roller span a first cylindrical surface
  • the blades of the second roller span a second cylindrical surface. Viewed in a cross section that is perpendicular to the axes of rotation of the rolls, the first and the second cylinder surface overlap.
  • the axes of rotation of the rollers are aligned parallel to one another. They extend in the axial direction.
  • the overlapping area of the cylindrical surfaces should be referred to as the effective area.
  • the plate-shaped deflector is located outside and downstream of this effective area. It lies outside of the rollers, ie outside of an area or volume that is surrounded by the first cylindrical surface and the second cylindrical surface.
  • an extension of the plate-shaped deflector in the axial direction is greater than or equal to a dimension of the effective area in the axial direction.
  • the plate-shaped deflector is therefore dimensioned larger in the axial direction than the effective range of the separating device in this direction. This ensures that no strips produced by the separating device fall down at the edge regions of the plate-shaped deflector and possibly get lost for the subsequent production steps.
  • the reliability of the device with regard to uninterrupted production is further improved by such a configuration of the plate-shaped deflector.
  • the webs of the at least one deflector element are held on one side on the plate-shaped deflector and, starting from the deflector, in the direction of their respective free ends in the Grooves of the first roller or the second roller extend.
  • the deflector elements are designed in such a way that their webs are only connected to one another on the outlet side, namely via the deflector arranged downstream of the effective area, but not on the inlet side.
  • a deflection element designed in this way which is plate-shaped and closed only downstream of the effective area, is much easier to assemble. It is thus possible, for example, to mount or even replace the deflection element without having to dismantle the rollers of the separating device or one of the two rollers of the separating device. This is always necessary for devices that are closed on both the inlet side and the outlet side. However, since this is not provided according to the embodiment mentioned, there are great advantages with regard to assembly and servicing of the device for separating the flat web.
  • the webs viewed in cross section, are designed to be significantly higher than they are wide in order to give them the required mechanical stability.
  • deflection elements which are designed according to the above embodiment, namely those deflection elements whose webs are only held on one side on the plate-shaped deflector.
  • At least one web of at least one deflection element in particular all webs of at least one deflection element, and in particular all webs of all deflection elements, have a T-shaped cross section.
  • a flat side of the T-shaped cross sections is oriented in the direction of this separating plane.
  • the cross section of the webs is viewed in a plane which is oriented transversely, in particular perpendicularly, to a direction of longitudinal extension of the respective webs.
  • the webs are also considered with regard to the aforementioned feature, according to which they are designed to be higher than they are wide.
  • the height of the webs is measured in a direction towards the parting plane. In other words, the webs have a larger dimension in a direction perpendicular to the parting plane than in a direction parallel to the parting plane.
  • the ridges are higher than they are wide, however, dirt can easily accumulate or, when separating moister materials, the ridges and the groove flanks of the rollers can stick together, which in the worst case can block the separating device.
  • the design of the webs with a T-shaped cross section is advantageous since only that part of the webs which comes into contact with the strips severed from the flat web and presses them out of the grooves of the rollers fills almost the entire width of the grooves. The part further in the direction of the bottom of the groove is made much narrower (seen in the axial direction of the rollers), which means that dirt can no longer block the separating device so easily. Impurities can also fall out of the deflectors in the direction of the bottom of the groove and be removed, for example scratched out, from the bottom of the groove with a downstream device.
  • the device is designed in particular in such a way that the deflection device comprises a first and a second deflection element, which are arranged on opposite sides of a separating plane, with a shortest connection between a first axis of rotation of the first roller and a second axis of rotation of the second roller perpendicular to the separating plane stands, the two deflection elements on both sides of the separation plane, in particular with mirror symmetry the separation plane, are arranged.
  • asymmetrical configurations are also provided, in which the two deflection elements are not arranged mirror-symmetrically to the separating plane.
  • one of the two deflectors is arranged closer to the parting plane than the other.
  • this can be the geodetically lower-lying deflector. This can, for example, be located in the immediate vicinity, i.e. just below the parting line. It is thus possible to support the strips emerging from the separating device from below, so that they can be fed to the further process steps approximately within the separating plane.
  • the two deflectors diverge in a funnel shape downstream, i.e. in the process direction.
  • an asymmetrical configuration can be provided, for example only the upper (geodetically higher) of the two deflectors can be curved, resulting in a funnel-shaped expansion.
  • the separation plane is at the same distance from the first and the second axis of rotation. In the case of rolls with radii of different sizes, the separation plane is closer to the roll with the smaller radius.
  • the first and the second lateral cylinder surface intersect along two lines that run parallel to one another. These two lines lie in the split plane.
  • One deflector element is therefore provided for each roller.
  • the strips that may be present in the grooves between the blades as a result of the severing process can be lifted out of the associated roller by the respective deflector element.
  • the strips are then reliably guided on the first or the second deflection element.
  • the webs of the at least one deflector element extend in sections in a partial area of the grooves of the first or second roller, with the plate-shaped deflector adjoining the webs downstream and connecting all the webs with one another, and with the plate-shaped deflector in particular Deflector and the webs are integrally formed.
  • the plate-shaped deflector is downstream of the webs.
  • the webs are partially downstream of the effective area. Following the cylindrical surface defined by the blades, the webs merge into the plate-shaped deflector.
  • the plate-shaped deflector is as close as possible to the outer surface of the cylinder. However, a distance between the cylinder jacket surface and the plate-shaped deflector is only selected so small that free rotation of the associated roller about its axis of rotation is ensured.
  • the plate-shaped deflector and the webs are designed in one piece.
  • the deflection element or the deflection elements are made in one piece.
  • the webs are produced, for example, by making grooves in a flat component.
  • the deflection element or elements are therefore preferably made of one piece of material.
  • the deflection element or the deflection elements are planar, ie completely planar.
  • one or both deflection elements are curved.
  • the deflection elements viewed in a cross section that is perpendicular to the axial direction, can be bent in such a way that a funnel-shaped opening is created both on the inlet side and on the outlet side. Upstream of the effective area, i.e. against the direction of material flow, this funnel widens in the feed area. The additional funnel also widens downstream of the effective range of the separating device, ie in the direction of material flow.
  • the first and/or the second plate-shaped deflector comprises a further plate-shaped deflector upstream of the effective area.
  • the plurality of webs of the first and/or second deflector element also extends in sections in a partial area of the grooves upstream of the effective area of the separating device and merges further upstream into the further plate-shaped deflector.
  • the other plate-shaped deflector connects upstream to the webs of the deflector element.
  • the at least one deflection element is set up to exert a spring force acting in the direction of a separating plane on the flat web or the strips, with a shortest connection between a first axis of rotation of the first roller and a second axis of rotation of the second roller being perpendicular stands on the separating plane, wherein in particular the at least one deflection element is designed as a spring-elastic element and/or is spring-loaded.
  • the first deflector element exerts a spring force in the direction of the second roller or is spring-loaded in this direction.
  • the second deflecting element exerts a spring force in the direction of the first roller or is spring-loaded in this direction.
  • the spring force can be adjustable.
  • first and/or the second deflector element are configured or mounted so that they can be adjusted, specifically in the direction of the opposite roller in each case.
  • the first and/or second deflection element can therefore be adjusted. They are fed up to the opposite roller, so that the strips produced from the web material rest between a surface of the webs of the deflection element and an outer end face of the cutting edges. A material thickness of the web material is compensated for by the spring effect or the resilient mounting of the deflection element.
  • the at least one deflection element has at least one S-fold, viewed in a plane that is perpendicular to the axial direction.
  • the first and/or the second deflection element has a first S-fold in a first direction and a further S-fold in the opposite direction.
  • first S-fold extended run-in area
  • second S -blow extended exit area
  • the device is further developed in that a scraping device is also included, which comprises a first and/or a second comb-shaped scraper with a plurality of tines, tines of the first scraper for cleaning the first roller in the grooves of the first roller and tines of the second scraper engage in the grooves of the second roller to clean the second roller, wherein the scraper device comprises a suction device for sucking off particles removed by the scrapers from the roller or rollers.
  • the particle suction provided is advantageous because the particles that may remain in the rollers as a result of the cutting process can be removed from the ongoing production process in this way. They can be returned to another point in the production process or disposed of.
  • the device is designed in such a way that the at least one deflection element is mechanically coupled to at least one vibration exciter which is set up to cause the deflection element to oscillate periodically or aperiodically.
  • At least one suspension of the deflection element is designed as a vibration exciter.
  • Suitable vibration exciters are, for example, piezo actuators, eccentrics or ultrasonic generators. It is also provided that a mechanical element rotating with unbalance is used as the vibration exciter. By causing the deflector to oscillate, the wear of the deflector can be reduced. Furthermore, mechanical blockages (clogging) of the rollers are prevented or eliminated by the strips.
  • the separating device is set up to separate immediately adjacent strips from one another along a predetermined separating line in the effective area by stretching the flat web transversely to the separating line so much that it tears apart along the separating line.
  • the first and second rollers are not in direct contact with one another in the effective area.
  • the flat web is not cut along the dividing line by the interaction of two blades, but is torn in a defined manner by overstretching. Since the flat web is not cut, but torn in a defined manner, open structures are created at the break edge, i.e. on the side edges of the strips. Because of this open structure, the strips of web material are better suited, for example, to absorbing additives or also, for example, to release them when heated.
  • the first and/or the second roller is/is designed as an intermittent roller, with all blades of the intermittent roller each comprising at least one recess which interrupts a cutting edge of the blade, with the recesses in the blades of the intermittent roller are arranged along a helix and this helix is in a spanned by the cutting edges of the blades cylinder jacket and the axis of the helix coincides with an axis of rotation of the intermittent roller.
  • a "recess” should be understood to mean an interruption or groove which is made in the corresponding blade in such a way that it interrupts the cutting edge of the blade.
  • a "helix” should be understood to mean a helical line which has a constant pitch. The recesses arranged along the helix ensure that the flat web is separated with the separating device in such a way that the individual strips are connected to one another in adjacent pairs by webs. In this way, the loss of individual strips from the process can be avoided even in the event of a break or a strip tearing off. The defective strip is fed back into the process with the next cross bar.
  • the web material from which the individual strips are made and from which the flat web is made is, for example, reconstituted tobacco material, PLA film, a paper web or another web material.
  • a rod-shaped article for the tobacco processing industry can be produced.
  • this item is an HNB (Heat-Not-Burn) product.
  • a cooling element for example, in particular for an HNB article, can be produced by means of the device.
  • a filter element or a spacer element can be produced.
  • the object is also achieved by a method for producing a rod-shaped article in the tobacco processing industry, which is developed in that a strand is formed with a device according to one or more of the aforementioned embodiments and the method comprises the following steps: Separating a flat web from a web material into a plurality of strips, in which with a separating device, which comprises a first roller and a second roller that interacts with this, the flat web is separated into the plurality of adjacent strips, the outer surfaces of the rollers in the axial direction alternately having grooves and blades that are closed in the circumferential direction of the respective roller and in an effective area the blades of the first roller engage in the grooves of the second roller and the blades of the second roller engage in the grooves of the first roller, with a deflection device comprising at least one deflector element whose webs engage in the grooves of the first or second roller, the Strips are removed from the grooves of the first or the second roller with a deflector, and wherein the strips are guided downstream of the effective
  • the grooves of the first roller are cleaned of existing particles by tines of a first scraper, which engage in the grooves of the first roller, and the grooves of the second roller are cleaned of existing particles are cleaned by tines of a second scraper engaging in the grooves of the second roller, sucking off the particles removed from the grooves.
  • the method is developed in particular in that the first and/or the second roller is/is designed as an intermittent roller, with all blades of the intermittent roller each comprising at least one recess which interrupts a cutting edge of the blade, with the recesses in the blades of the intermittent roller are arranged along a helix and this helix lies in a cylinder jacket spanned by the cutting edges of the blades and the axis of the helix coincides with an axis of rotation of the intermittent roller and the flat web is separated into strips connected to one another by transverse webs, which during the separation process into the recesses of the blades.
  • FIG. 1 shows a schematic and simplified representation of a device 2 for producing a strand 4 from a web material.
  • the web material is unrolled from a bobbin 8 as a flat web 6, for example.
  • An unwinding unit 10 is provided for this purpose. Provision is also made for the flat web 6 to be supplied in a different way.
  • the web material of the flat web 6 is, for example, reconstituted tobacco material, PLA film or paper.
  • the flat web 6 is fed to a device 11 included in the device 2 for separating the flat web 6 .
  • the device 11 for separating the flat web 6 comprises a separating device 12 and a deflection device 13.
  • the separating device 12 is set up to separate the flat web 6 into a large number of strips 14.
  • the strips 14 extend in a strip plane which is shown in FIG 1 is perpendicular to the plane of the paper.
  • the strips 14 are led out of the separating device 12 by the deflection device 13 .
  • In 1 1 shows a schematic plan view of the plurality of strips 14 produced as a detailed view, this view being rotated 90° out of the plane of the paper for clarification.
  • the strips 14 running essentially parallel to one another are conveyed, for example, via transport rollers 16 in the direction of an inlet funnel 18 of a strand-forming unit 20 .
  • a smooth, flat guide for example a metal sheet or the like, can also be provided, over which the strips 14 are pulled and/or pushed.
  • the device 11 may differ from the representation in 1 is not constructed so that the flat web 6 is processed in the horizontal direction. This can be deflected or also supplied or subjected to one or more processing steps in directions deviating from the horizontal direction. However, it has proven to be advantageous if the severed strips 14 are no longer deflected until they reach the inlet hopper of the strand-forming unit 20 .
  • the strand-forming unit 20 is part of the device 2 for producing the strand 4.
  • a strand 4 is formed from the plurality of strips 14 in it.
  • the strand formation takes place, for example, in a format channel 22, which is only indicated schematically. After strand formation, the strand 4 can be cut into individual rod-shaped articles 24 of a desired length.
  • the separating device 12 of the device 11 for separating the flat web 6 comprises a first roller 26 and a second roller 28 cooperating with this.
  • the two rollers 26, 28 are not in mechanical contact with one another.
  • the first roller 26 rotates about a first axis of rotation 27, the second roller 28 rotates about a second axis of rotation 29.
  • FIG. 2 shows a schematically simplified detailed view of the two rollers 26, 28 of the separating device 12 in the effective area of the two rollers 26, 28.
  • 2 is a representation in a sectional plane in which the axes of rotation 27, 29 of the rollers 26, 28 lie.
  • the axes of rotation 27, 29 of the rollers 26, 28 extend in the axial direction A.
  • the first roller 26 has a first lateral surface 30 and the second roller 28 has a second lateral surface 32.
  • the lateral surfaces 30, 32 of the rollers 26, 28 in the axial direction A alternately have circumferential grooves 34 and blades 36 closed in the circumferential direction. For the sake of clarity, only some of the grooves 34 and the blades 36 are referenced. In the illustrated effective range of the two rollers 26, 28, the blades 36 of the first roller 26 engage in the grooves 34 of second roller 28 and the blades 36 of the second roller 28 engage in the grooves 34 of the first roller 26.
  • the parting plane T lies in the representation of 2 perpendicular to the web plane E, in which the flat web 6 of the separating device 12 is fed.
  • the blades 36 of the rollers 26,28 each include a top surface 38 which is part of the outer surface 30,32 of the associated roller 26,28.
  • the grooves 34 each include a base 40, which is also part of the lateral surface 30, 32 of the associated roller 26, 28.
  • the blades 36 and the grooves 34 are connected to one another by flanks 42, 44, respectively.
  • flanks 42 Depending on whether the grooves 34 or the blades 36 are assigned to the first or the second roller 26, 28, these flanks should be designated as the first flanks 42 if it is the first roller 26 and as the second flanks 44 if it is is the second roller 28.
  • the flanks 42, 44 run radially, ie in a radial direction R which is perpendicular to the axial direction A.
  • the radial direction R runs in the direction of a radius of the respective roller 26, 28.
  • the dividing lines, along which the flat web 6 is separated into strips 14, each run between the first flanks 42 of the first roller 26 and the second flanks 44 of the second roller 28 .
  • the separating device 12 is designed to separate the flat web 6, which has a predetermined material thickness.
  • the separating device 12 can be designed in such a way that between the flanks 42, 44 of opposite rollers 26, 28, i.e. between the first flank 42 and the second flank 44, an axial gap dimension 46 is provided which is 0.5 times to twice is in particular 0.6 times to once the value of the predetermined material thickness of the flat web 6 .
  • a measured in the radial direction R of the rollers 26, 28 distance D between the The upper side 38 of the blades 36 and the first roller 26 and the upper side 38 of the blades 36 of the second roller 28 is, for example, one to five times the value of the specified material thickness of the flat web 6.
  • the local overstretching of the flat web 6 along the dividing lines means that in the grooves 34 of the rollers 26, 28, the individual strips 14, of which only a few are provided with reference numbers for reasons of clarity, are present separately from one another.
  • the strips 14 have an open structure at their edges 48, since they are not separated by a cut, but are torn apart in a defined manner by overstretching.
  • the separating device 12 includes the deflecting device 13, which includes at least one deflecting element whose webs 50 engage in the grooves 34 of the first and second rollers 26, 28.
  • the ridges 50 extend between the bottom 40 of the grooves 34 and the respective strip 14. The strips 14 are led out of the grooves 34 by the ridges 50 at the end of the working range, i.e. from the bottom 40 of the grooves 34 towards the top 38 of the blades 36 led.
  • the strips 14 are guided out of a cylinder jacket surface of the rollers 26, 28 defined by the outer circumferences of the blades 36.
  • the strips 14 continue to reach a plate-shaped deflector of the deflector element, which is arranged downstream of the effective area and is designed as a closed surface.
  • the separating device 12 in a schematically simplified perspective view, comprising the first roller 26 and the second roller 28.
  • the flat web 6 and the strips 14 produced from it using the separating device 12 are not shown.
  • the flat web 6 is the separator 12 from the right Supplied to an inlet area 60 from the side.
  • the rollers 26, 28 mesh and the flat web 6 is separated into individual strips 14.
  • the deflection device 13 comprises a first deflection element 54 and a second deflection element 56.
  • the deflection elements 54, 56 are designed in sections as plate-shaped deflectors.
  • the deflection elements 54, 56 are arranged symmetrically to a separation plane AT. Their location is in 3 indicated with a dotted line.
  • the deflecting elements 54, 56 are also designed symmetrically to the separation plane AT in the inlet area 60 and in the outlet area 58, ie upstream of the effective area 52 and downstream of the effective area 52.
  • the deflecting elements 54, 56 in the inlet area 60 and in the outlet area 58 are designed in the same way.
  • the area of the second deflector element 56 designed as a plate-shaped deflector 62 is visible in the outlet area 58 .
  • This plate-shaped deflector 62 is designed as a closed surface and connects the 3 non-visible webs 50 of the second deflection element 56 with each other.
  • the deflecting elements 54, 56 are set up, for example, to exert a spring force acting in the direction of a separating plane AT on the flat web 6 or the strips 14 produced.
  • the deflecting elements 54, 56 are designed, for example, as spring-elastic elements.
  • the bearings or suspension 63 of the deflecting elements 54, 56 are designed as spring bearings.
  • the first deflecting element 54 thus exerts a spring force in the direction of the second roller 28 or is spring-loaded in this direction.
  • the second deflecting element 56 exerts a spring force in the direction of the first roller 26 or is spring-loaded in this direction.
  • the spring force can be adjustable in each case.
  • the deflecting elements 54, 56 are mechanically coupled to at least one vibration exciter. This is set up to cause the deflection element 54, 56 to oscillate periodically or aperiodically.
  • at least one suspension 63 of at least one deflection element 54, 56 is designed as a vibration exciter, for example as a piezo actuator, eccentric, ultrasonic generator or as a mechanical element rotating with imbalance.
  • the separating device 12 is also provided with a stripping device 64 .
  • This includes a first comb-shaped scraper 66 which is provided with a plurality of tines, the tines of the first scraper 66 engaging in the grooves 34 of the first roller 26 and serving to clean the first roller 26 .
  • the scraper device 64 also includes a second scraper 68 which is also provided with tines, the tines of the second scraper 68 engaging in the grooves 34 of this roller 28 in order to clean the second roller 28 .
  • the scraper device 64 also includes a suction device 70 with which the particles removed from the rollers 26, 28 by the scrapers 66, 68 are sucked off.
  • the device shown comprises the suction device 70 in each case a hood 72 in which a suction channel 74 is present.
  • the hood 72 reaches up to a lateral surface of the rollers 26, 28, so that particles removed by the scrapers 66, 68 are received in the interior of the hood 72 and removed via the suction channel 74.
  • the first cutting roller 26 or the second cutting roller 28 or both cutting rollers 26, 28, ie the first cutting roller 26 and the second cutting roller 28 are designed, for example, as intermittent roller(s).
  • the configuration of the separating device 12 with at least one intermittent roller ensures that the strips 14 are connected in pairs to each other with crossbars.
  • all of the blades 36 of the intermittent roller 26, 28 are each provided with a recess which interrupts a cutting edge of the blade 36.
  • the recesses in the blades 36 of such an intermittent roller 26, 28 are arranged along a helix. This helix lies in a cylinder jacket spanned by the cutting edges of the blades 36 .
  • the axis of this helix coincides with the respective axis of rotation 27,29 of the intermittent roller 26,28.
  • FIG. 4 shows the first roller 26 and the second roller 28 in a schematically simplified perspective detail view.
  • An outer blade 36 of the first roller 26 is visible at the front of the figure. In the effective area 52, this blade 36 overlaps with a blade 36 of the second roller 28. The blade 36 thus engages in a groove 34 of the roller 26, 28 lying opposite.
  • the web 50 of the second deflection element 56 extends through this groove 34.
  • An opposite first deflection element 54 also has webs 50, of which only a single one is partially visible. These extend through the grooves 34 of the first roller 26.
  • the flat web 6 is fed to the knitting region 52 from the right-hand side between the first deflecting element 54 and the second deflecting element 56.
  • the flat web 6 is separated into individual strips 14, which are guided out of the roller 26, 28 on the upper side 76 of the webs 50 facing the opposite roller 26, 28 in each case.
  • the strips 14 then reach the plate-shaped deflector 62, which 4 for the second deflecting element 56 is provided with reference symbols.
  • the strips 14 are guided on top of the deflector 62 and made available for further processing steps.
  • the strips 14 are also guided out of the first roller 26 by the first deflection element 54.
  • the strips 14 are guided between the two deflecting elements 54, 56, more precisely between the plate-shaped deflectors 62 of the respective deflecting elements 54, 56.
  • FIG 5 shows a schematic and simplified plan view of a deflecting element, for example the first deflecting element 54, of the deflecting device 13.
  • the deflecting element 54 comprises a plurality of webs 50. Between the webs 50 there are spaces or slots through which the blades 36 of the first roller 26 in ready-for-use assembly state. The webs 50 merge into the plate-shaped deflector 62 .
  • An extent 78 of the plate-shaped deflector 62 in the axial direction A is greater than a dimension of the effective area 52 in this direction.
  • the dimension of the effective area 52 in the axial direction A corresponds to the distance between the outer blades 36 of the rollers 26, 28. Since the blades 36 of the roller 26 protrude through the slots between the webs 50, this is the distance between the outer edges of the outermost slots, measured in axial direction A.
  • the deflecting element 54 is designed in one piece, for example.
  • a plate is provided with slits so that the webs 50 arise.
  • the deflection element 54 is therefore, for example, completely flat.
  • FIG. 6 shows a schematically simplified perspective detailed view of a one-piece deflection element 54 in the operating position.
  • the opposite roller 28 cooperating with the roller 26 shown is not shown.
  • the deflection element shown should once again be the first deflection element 54, purely by way of example.
  • the blades 36 of the first roller 26 extend in the grooves between the webs 50 .
  • the webs 50 merge into the plate-shaped deflector 62 .
  • the plate-shaped deflector 62 follows the webs 50 downstream and connects all the webs 50 to one another. In the exemplary embodiment shown, the webs 50 are also connected to one another upstream with a further plate-shaped deflector 80 .
  • the separation plane AT is arranged in such a way that it is perpendicular to a shortest connection between a first axis of rotation 27 of the first roller 26 and a second axis of rotation 29 of the second roller 28 .
  • the separation level AT separates this shortest connection exactly in the middle.
  • the separation plane AT is therefore equidistant from the first and second axes of rotation 27, 29. This applies on condition that the two rollers 26, 28 have radii of the same size.
  • the two deflection elements 54, 56 are arranged, for example, mirror-symmetrically to the separation plane AT.
  • FIG. 8 shows the first roller 26 and the second roller 28 again in a schematically simplified perspective detail view, the second roller 28 being configured with a second deflecting element 56 according to a further exemplary embodiment, for example.
  • the webs 50 are on the in the 8 forward side was added to a common bracket 82. In particular, it is provided that the webs 50 are not formed in one piece or in one piece with this holder 82 . Furthermore, the webs 50 each have an S-shape, so that their upper side 76 reduces the distance to the opposite roller, in this case the first roller 26, in some areas. The S-beat is directed towards this first roller 26 .
  • FIG. 9 shows a further schematically simplified perspective illustration in which the second roller 28 and a second deflecting element 56 are shown according to a further exemplary embodiment.
  • the deflecting element 56 has a first S-fold in a first area 84 and a second S-fold in a second area 86 .
  • FIG. 11 shows in a further schematic and simplified perspective view the rollers 26, 28 of the separating device 13, each with a deflector element 54, 56 according to a further embodiment.
  • the deflecting elements 54, 56 are designed in such a way that they each have two S-folds directed in opposite directions. These are present in the first and in the second area 84, 86.
  • the separating device 12 shown comprises a deflecting device 13, comprising a first deflecting element 54 and a second deflecting element 56.
  • Deflection devices 13 described are the webs 50 of the 12 deflector elements 54, 56 shown are each held on one side on the plate-shaped deflector 62 and, starting from this, extend into the grooves 34 of the first roller 26 and into the grooves 34 of the second roller 28.
  • a web 50 of the first deflecting element 54 is completely visible, since the sectional view in 12 the view of a groove 34 of the first roller 26 releases. Starting from the deflector 62, this web 50 extends in the direction of its free end 90 into the groove 34.
  • the web 50 of the second deflector 56 is only partially visible, since the associated groove of the second roller 28 in the sectional view of 12 is not shown.
  • the outlet zone between the deflecting elements 54, 56 widens in a funnel shape.
  • the plate-shaped deflector 62 of the second deflector element 56 is in particular planar and, for example, parallel to designed the parting plane AT indicated in a dotted line.
  • the individual strips can be guided out of the active area between the rollers 26, 28 via the webs 50 and the plate-shaped deflector 62 of the second deflector element 56.
  • a first wiper 66 of a wiper device 64 already explained above is shown in 12 shown on the first roller 26.
  • 13 12 shows the rollers 26, 28 of the separating device 12 in a further schematically simplified detailed view.
  • An active area between the two rollers 26, 28 is shown in a sectional plane in which the axes of rotation of the rollers 26, 28 lie.
  • the representation is similar to that in 2 .
  • the first roller 26 and the second roller 28 are shown only in sections.
  • the blades 36 of the first roller 26 engage in grooves 34 of the second roller 28.
  • the blades 36 of the second roller 28 reversely engage in the grooves 34 of the first roller 26.
  • the webs 50 of the first deflecting element 54 are also shown in cross section.
  • the webs 50 of the second deflecting element 56 are arranged in the grooves 34 of the second roller 28 and are shown in cross section.
  • the webs 50 have a T-shaped cross section.
  • a flat upper side 92 of the webs 50 faces the parting plane AT in each case.
  • the in 13 Strips 14, not shown, are led out of the active area between the first and the second roller 26, 28.
  • the webs 50 only fill the grooves 34 approximately in width in a head region 94 .
  • the width of the webs 50 is significantly smaller in a fuselage region 96 which is designed to be significantly narrower. It is thus possible for impurities to be transported between the groove flanks 98 and the narrow body area 96 in the direction of the bottom 40 of the grooves 34, where they can be removed with the aid of the in 13 not shown stripping device 64 can be removed.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (12)

  1. Dispositif (2) pour la fabrication d'une tige (4) de l'industrie de transformation du tabac, comprenant un dispositif (11) pour séparer une bande plate (6) d'un matériau en bande en une pluralité de bandes (14), comprenant un dispositif de séparation (12) et un dispositif déflecteur (13), le dispositif de séparation (12) comprenant un premier rouleau et un deuxième rouleau (26, 28) coopérant avec celui-ci, et les surfaces d'enveloppe (30, 32) des rouleaux (26, 28) présentent, dans la direction axiale (A), des rainures (34) et des lames (36) tournant en circuit fermé en alternance dans la direction périphérique du rouleau respectif (26, 28) et, dans une zone d'action, les lames (36) du premier rouleau (26) s'engagent dans les rainures (34) du deuxième rouleau (28) et les lames (36) du deuxième rouleau (28) s'engagent dans les rainures (34) du premier rouleau (26), et le dispositif de séparation (12) est conçu de manière à séparer la bande plate (6) en une pluralité de bandes voisines (14), et le dispositif déflecteur (13) comprenant au moins un élément déflecteur (54, 56) dont les nervures (50) s'engagent dans les rainures (34) du premier ou du deuxième rouleau (26, 28), caractérisé en ce que ledit au moins un élément déflecteur (54, 56) est réalisé par sections sous la forme d'un déflecteur (62) en forme de plaque qui forme une surface fermée en aval de la zone d'action du dispositif de séparation (12), laquelle s'étend dans la direction axiale (A) sur au moins deux nervures (50), les nervures (50) dudit au moins un élément déflecteur (54, 56) du dispositif déflecteur (13) étant maintenues d'un côté sur le déflecteur (62) en forme de plaque et s'étendant à partir du déflecteur (62) en direction de leurs extrémités libres respectives (90) dans les rainures (34) du premier rouleau (26) ou du deuxième rouleau (28),
    le dispositif (2) comprend en outre une unité (20) de formation de tige agencée pour former une tige (4) à partir de la pluralité de bandes (14).
  2. Dispositif (2) selon la revendication 1, caractérisé en ce qu'au moins une nervure (50), en particulier toutes les nervures (50), dudit au moins un élément déflecteur (54, 56) présentent une section transversale en forme de T.
  3. Dispositif (2) selon la revendication 1 ou la revendication 2, caractérisé en ce que le dispositif déflecteur (13) comprend un premier et un deuxième éléments déflecteurs (54, 56) disposés sur des côtés opposés d'un plan de séparation (AT), une liaison la plus courte entre un premier axe de rotation (27) du premier rouleau (26) et un deuxième axe de rotation (29) du deuxième rouleau (28) étant perpendiculaire au plan de séparation (AT), les deux éléments déflecteurs (54, 56) étant disposés des deux côtés du plan de séparation (AT), en particulier de manière symétrique par rapport au plan de séparation (AT).
  4. Dispositif (2) selon l'une des revendications 1 à 3, caractérisé en ce que ledit au moins un élément déflecteur (54, 56) est agencé pour exercer une force élastique agissant en direction d'un plan de séparation (AT) sur la bande plate (6) ou les bandes (14), une liaison la plus courte entre un premier axe de rotation (27) du premier rouleau (26) et un deuxième axe de rotation (29) du deuxième rouleau (28) étant perpendiculaire au plan de séparation (AT), ledit au moins un élément déflecteur (54, 56) étant en particulier conçu sous la forme d'un élément élastique et/ou étant logé de manière à être chargé par ressort.
  5. Dispositif (2) selon l'une des revendications 1 à 4, caractérisé en ce que ledit au moins un élément déflecteur (54, 56), considéré dans un plan perpendiculaire à la direction axiale (A), présente au moins un emboutissage en S.
  6. Dispositif (2) selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comprend en outre un dispositif racleur (64) comprenant un premier et/ou un deuxième racleur (66, 68) en forme de peigne comportant une pluralité de dents, des dents du premier racleur (66) s'engageant dans les rainures (34) du premier rouleau (26) pour nettoyer le premier rouleau (26) et des dents du deuxième racleur (68) s'engageant dans les rainures (34) du deuxième rouleau (28) pour nettoyer le deuxième rouleau (28), le dispositif de raclage (64) comprenant un dispositif d'aspiration (70) pour aspirer les particules retirées du ou des rouleaux (26, 28) par les racleurs (66, 68).
  7. Dispositif (2) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que ledit au moins un élément déflecteur (54, 56) est relié mécaniquement à au moins un générateur de vibrations agencé pour faire vibrer ledit élément déflecteur (54, 56) de manière périodique ou apériodique.
  8. Dispositif (2) selon l'une des revendications 1 à 7, caractérisé en ce que le dispositif de séparation (12) est conçu pour séparer les unes des autres des bandes (14) directement voisines le long d'une ligne de séparation (T) prédéterminée dans la zone d'action (52), en étirant la bande plate (6) transversalement à la ligne de séparation (T) de telle sorte qu'elle se déchire le long de la ligne de séparation (T).
  9. Dispositif (2) selon l'une des revendications 1 à 8, caractérisé en ce que le premier et/ou le deuxième rouleau (26, 28) est/sont réalisé(s) sous forme de rouleau intermittent, toutes les lames (36) du rouleau intermittent comprenant chacune au moins un évidement qui interrompt un tranchant de la lame (36), les évidements dans les lames (36) du rouleau intermittent (26, 28) étant disposés le long d'une hélice et cette hélice étant située dans une enveloppe cylindrique tendue par les tranchants des lames (36) et l'axe de l'hélice coïncidant avec un axe de rotation (27, 29) du rouleau intermittent (26, 28).
  10. Procédé de fabrication d'un article en forme de tige de l'industrie de transformation du tabac, caractérisé en ce qu'une tige est formée avec un dispositif selon l'une des revendications 1 à 9, et en ce que le procédé comprend les étapes suivantes : Séparation d'une bande plate (6) d'un matériau en bande (6) en une pluralité de bandes (14), la bande plate (6) étant séparée en la pluralité de bandes voisines (14) au moyen d'un dispositif de séparation (12) qui comprend un premier rouleau (26) et un deuxième rouleau (28) coopérant avec celui-ci, les surfaces d'enveloppe (30, 32) des rouleaux (26, 28), séparées dans la direction axiale (A) en alternance dans la direction circonférentielle du rouleau respectif (26, 28), présentant des rainures (34) et des lames (36) périphériques fermées et, dans une zone d'action (52), les lames (36) du premier rouleau (26) s'engageant dans les rainures (34) du deuxième rouleau (28) et les lames (36) du deuxième rouleau (28) s'engageant dans les rainures (34) du premier rouleau (26), un dispositif déflecteur (13), qui comprend au moins un élément déflecteur (54, 56) dont les nervures (50) s'engagent dans les rainures (34) du premier ou du deuxième rouleau (26, 28), les bandes (14) sont retirées des rainures (34) du premier ou du deuxième rouleau (26, 28) au moyen d'un dispositif déflecteur (13), les bandes (14) étant guidées en aval de la zone d'action (52) du dispositif de séparation (12) le long d'une surface d'un déflecteur (62) en forme de plaque, ledit au moins un élément déflecteur (54, 56) étant réalisé par sections sous la forme d'un déflecteur (62) en forme de plaque, qui forme, en aval de la zone d'action (52) du dispositif de séparation (12), une surface fermée qui s'étend dans la direction axiale (A) sur au moins deux nervures (50), des bandes (14) directement voisines étant séparées les unes des autres le long d'une ligne de séparation (T) prédéterminée dans la zone d'action (52), en étirant la bande plate (6) transversalement à la ligne de séparation (T) de telle sorte qu'elle se déchire le long de la ligne de séparation (T).
  11. Procédé selon la revendication 10, caractérisé en ce que les rainures (34) du premier rouleau (26) sont nettoyées des particules présentes par des dents d'un premier racleur (66) qui s'engagent dans les rainures (34) du premier rouleau (26), et les rainures (34) du deuxième rouleau (28) sont nettoyées des particules présentes dans les dents d'un deuxième racleur (68) qui s'engagent dans les rainures (34) du deuxième rouleau (28), les particules retirées des rainures (34) étant aspirées.
  12. Procédé selon la revendication 10 ou la revendication 11, caractérisé en ce que le premier et/ou le deuxième rouleau (26, 28) est/sont réalisé(s) sous forme de rouleau intermittent, toutes les lames (36) du rouleau intermittent comprenant chacune au moins un évidement qui interrompt un tranchant de la lame (36), les évidements dans les lames (36) du rouleau intermittent étant disposés le long d'une hélice et cette hélice se trouvant dans une enveloppe cylindrique tendue par les tranchants des lames (36) et l'axe de l'hélice coïncidant avec un axe de rotation (27, 29) du rouleau intermittent et la bande plate (6) étant séparée en bandes (14) reliées entre elles par des nervures transversales, qui se trouvent dans les évidements des lames (36) lors du processus de séparation.
EP20150666.4A 2019-01-14 2020-01-08 Dispositif et procede de fabrication d'un fil pour l'industrie du tabac Active EP3680078B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP23184847.4A EP4241941A3 (fr) 2019-01-14 2020-01-08 Dispositif et procédé de fabrication d'un boudin de l'industrie de traitement du tabac

Applications Claiming Priority (1)

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DE102019100755.0A DE102019100755A1 (de) 2019-01-14 2019-01-14 Vorrichtung und Verfahren zum Auftrennen einer Flachbahn sowie Vorrichtung zum Herstellen eines Strangs

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EP23184847.4A Division EP4241941A3 (fr) 2019-01-14 2020-01-08 Dispositif et procédé de fabrication d'un boudin de l'industrie de traitement du tabac

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EP3680078A1 EP3680078A1 (fr) 2020-07-15
EP3680078B1 true EP3680078B1 (fr) 2023-07-12

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EP20150666.4A Active EP3680078B1 (fr) 2019-01-14 2020-01-08 Dispositif et procede de fabrication d'un fil pour l'industrie du tabac
EP23184847.4A Pending EP4241941A3 (fr) 2019-01-14 2020-01-08 Dispositif et procédé de fabrication d'un boudin de l'industrie de traitement du tabac

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EP (2) EP3680078B1 (fr)
CN (1) CN111434249B (fr)
DE (1) DE102019100755A1 (fr)
PL (1) PL3680078T3 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US789465A (en) 1903-05-15 1905-05-09 Varley Duplex Magnet Co Paper-slitting machine.
US3472236A (en) 1964-11-16 1969-10-14 American Mach & Foundry Cigarette or cigar making machine and method
US3589373A (en) * 1968-10-28 1971-06-29 Amf Inc Cigarette making machine
DE3616554C2 (de) * 1986-05-16 1995-05-24 Schleicher Co Feinwerktech Messerwalzen-Abstreifvorrichtung für Aktenvernichter oder dgl.
US5025814A (en) 1987-05-12 1991-06-25 R. J. Reynolds Tobacco Company Cigarette filters containing strands of tobacco-containing materials
US5511732A (en) 1994-12-28 1996-04-30 Fellowes Manufacturing Company Document shredding machine with continuous stripper
DE102007059625B4 (de) * 2007-12-10 2013-07-25 Hauni Maschinenbau Ag Strangschneidvorrichtung
DE202011003744U1 (de) * 2011-03-10 2011-05-12 Su, Chao-Lung Verstärkte Schneideinrichtung für einen Streifenschnitt-Aktenvernichter
DE102016112724B4 (de) * 2016-07-12 2018-02-08 Hauni Maschinenbau Gmbh Schneiden eines Belagpapierstreifens der Tabak verarbeitenden Industrie
CN108081344A (zh) * 2017-11-23 2018-05-29 广东恒联食品机械有限公司 一种肉片切花机

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EP4241941A2 (fr) 2023-09-13
PL3680078T3 (pl) 2024-01-03
EP3680078A1 (fr) 2020-07-15
CN111434249B (zh) 2023-06-30
EP4241941A3 (fr) 2023-12-20
CN111434249A (zh) 2020-07-21
DE102019100755A1 (de) 2020-07-16

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