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EP3269265B1 - Cutting of a tipping paper strip for the tobacco processing industry - Google Patents

Cutting of a tipping paper strip for the tobacco processing industry Download PDF

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Publication number
EP3269265B1
EP3269265B1 EP17179266.6A EP17179266A EP3269265B1 EP 3269265 B1 EP3269265 B1 EP 3269265B1 EP 17179266 A EP17179266 A EP 17179266A EP 3269265 B1 EP3269265 B1 EP 3269265B1
Authority
EP
European Patent Office
Prior art keywords
cutting
roller
drive
suction
suction roller
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
EP17179266.6A
Other languages
German (de)
French (fr)
Other versions
EP3269265A1 (en
Inventor
Marc Kessler
Manfred Folger
Frank Grothaus
Nils Klaper
Peter Kalus
Stefan Hartmann
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
Application filed by Hauni Maschinenbau GmbH filed Critical Hauni Maschinenbau GmbH
Priority to PL17179266T priority Critical patent/PL3269265T3/en
Publication of EP3269265A1 publication Critical patent/EP3269265A1/en
Application granted granted Critical
Publication of EP3269265B1 publication Critical patent/EP3269265B1/en
Active 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
    • A24C5/47—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces
    • A24C5/471—Attaching filters or mouthpieces to cigars or cigarettes, e.g. inserting filters into cigarettes or their mouthpieces by means of a connecting band
    • A24C5/473—Cutting the connecting band
    • 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
    • B26D1/25—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 non-circular cutting member
    • B26D1/34—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 non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40—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 non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405—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 non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
    • 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
    • B26D1/56—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626—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 travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like

Definitions

  • the invention relates to a device for cutting a strip of material web from the tobacco processing industry, in particular a covering paper strip, into material web sections and a machine in the tobacco processing industry, in particular a filter attachment machine.
  • the invention also relates to a method for cutting a material web strip in the tobacco processing industry, in particular a covering paper strip, the material web strip being conveyed to a device for cutting the material web strip and being cut into material web strip sections by means of the device.
  • a filter piece or mouthpiece of double length is inserted between cut and axially spaced tobacco sticks, and a glued tipping paper sheet is then attached to the assembled cigarette-mouthpiece-cigarette group.
  • DE 39 18 137 A1 is for example a tipping paper apparatus of a filter attaching machine described.
  • the glued covering paper is fed in as an endless covering paper strip and cut into individual sheets or covering paper sheets by means of a cutting device.
  • the cutting device consists of a cutting roller with outwardly directed knives and a suction roller with recesses, the edge of which leading in the direction of rotation is designed as a cutting edge. Between the grooves, the suction roller has surfaces acted upon by suction air, on which the covering paper strip and the covering paper leaves are held or guided. The knives of the rotating cutting roller engage in the grooves of the tipping paper roll rotating in opposite directions, the tipping paper strip being cut between a knife of the cutting roller and a cutting edge of the suction roller.
  • a tipping apparatus for cutting a tipping paper strip into several tipping paper strip sections, the tipping paper strip being cut in the transverse direction and in the longitudinal direction.
  • the drums and rollers are driven by a drive system, for which purpose one or more electric motors, such as servo motors or stepper motors, can be provided.
  • a central control unit is provided for driving each component in order to control the speed and alignment of the drums.
  • a central drive motor can be used which is connected to the drums via toothed belts or gears or chain drives.
  • a non-torque-controlled or a (rotation) speed-controlled or position-controlled suction roller drive is provided for the suction roller with a high mass inertia and a directly driving torque-controlled cutting roller drive is provided for the cutting roller with a low mass inertia, it is possible to control the drive torques of the Cutting roller or the suction roller to vary the pressure of the cutting elements (cutting knife and groove flank) that work together for the scissor cut.
  • the knife Since the radius of the knife or the (radial) distance between the axis of rotation of the cutting roll and the point of intersection of the knife on the groove flank of the suction roll changes when the cutting roll rotates, the knife is slightly bent when the cutting knife plunges into a groove the point of contact between the knife and the groove flank moves. This makes a pulling one Cut reached or formed.
  • the bending of the cutting knife is also referred to as so-called overpressure.
  • suction roller drive is speed-controlled or rotational speed-controlled or position-controlled and the cutting roller drive is torque-controlled means that wear is reduced or even breaking of the cutting blade is prevented.
  • the use of the speed-controlled or position-controlled suction roll drive and the torque-controlled cutting roll drive mean that wider material webs, e.g. with a width greater than 74 mm, can be cut in a simple manner without the cutting knife being significantly overpressed.
  • it is achieved that a cutting contour that deviates from a straight line can also be implemented.
  • the drive of the suction roll is designed with a speed control device or position control device and the drive of the cutting roll is designed with a torque control device.
  • the individually driven suction roller which is also referred to as the counter roller
  • the suction roll drive and the cutting roll drive are e.g. connected to one another by means of a transmission, preferably with play.
  • the transmission is ineffective in the production operation of the device or the machine, ie in the production of cigarettes, since in this operating state of the device or the machine the suction roller drive drives the suction roller and the cutting roller drive drives the cutting roller directly and independently of one another.
  • non-production mode i.e. in manual mode or in the event of a power failure
  • the transmission is effective.
  • manual mode the cutting roller is rotated in the production direction via a handwheel
  • the suction roller is rotated via the then effective gear.
  • the gear mechanism is also effective, since when the suction roller and cutting roller rotate simultaneously by means of the gear mechanism, the suction roller and the cutting roller come to a standstill without being destroyed.
  • the suction roller and cutting roller are rotated simultaneously by means of the gear unit, so that it is possible to record and to determine the angular relationships between the positions of the suction roller and the cutting roller and also of the gear unit check.
  • the cutting roller drive is operated accordingly based on the angular positions of the cutting roller and the suction roller of the cutting roller drive recorded in the previous non-production mode, in order, for example, to avoid overpressing the cutting blades during the cutting process and / or to avoid wider material strips and theirs Cut edges exactly.
  • the cutting knife and the groove flank (as the cutting edge) only touch each other at a defined point during the cutting process, it is possible to specifically adjust the bending of the cutting knife via the cut by regulating the drive torque. It is possible to limit the tension on the rollers or to increase it in a targeted manner.
  • the tensioning of the rollers involved in the cutting process can be controlled by the suction roll drive with its speed control or position control and the cutting roll drive with its torque control, in particular in such a way that a targeted setting of a cut is achieved, whereby it is also possible that wider material web strips, for example with a width greater than 74 mm, are cut into material web strip sections.
  • the drive torque of the suction roll drive is regulated or can be regulated as a function of the speed of the suction roll drive when performing the scissor cut and / or that the drive torque of the cutting drum drive is controlled depending on the position of the cutting drum drive when executing the scissor cut or is adjustable.
  • the speed or the position positions of the suction roller drive and / or the drive torque of the cutting roller drive are regulated in such a way that an overpressure of a cutting knife when the scissor cut is formed does not exceed a predetermined maximum setpoint value for the overpressure and / or does not fall below a minimum setpoint.
  • the mutual pressure of the groove flank and the cutting knife interacting with it is varied during the cutting process in such a way that the overpressure of the cutting knife that is present or necessary during the scissor cut does not exceed a maximum, so that it is possible to cleanly cut the wider material webs and their edges.
  • This is achieved in particular in that the drive torque of the individually driven cutting roller is reduced at the time of the overpressure, which also reduces the wear on the knife.
  • the drive torque of the cutting roller drive is or is regulated in such a way that with a predetermined or optimally set overpressure, the edges of the material webs or the material web sections are also cut cleanly.
  • the cutting edges of the cutting knives can be used with a straight cutting contour.
  • cutting knives that have cutting edges with a cutting contour deviating from a straight line, e.g. bow-shaped knives.
  • an overpressure of a cutting knife when forming the scissor cut does not exceed a maximum setpoint value, the useful life of the cutting knife is extended due to less wear.
  • the drive torque of the cutting roller is reduced or can be reduced when the cutting knife is overpressed and when the maximum setpoint value for overpressing the cutting knife is reached.
  • the drive torque of the cutting roller is increased or can be increased if the pressure of the cutting blade is too low and a minimum setpoint value for the pressure of the cutting blade is reached.
  • the suction roll drive is preferably designed as a servomotor and / or the cutting roll drive is designed as a servomotor.
  • the cutting edges of the cutting knives have a non-rectilinear cutting contour.
  • the cutting edges of the cutting knives have a straight cutting contour.
  • the cutting roller drive and the suction roller drive are connected to one another, in particular using a gear, more preferably a gear drive.
  • the gear mechanism is preferably designed as a gear mechanism with backlash, that is to say not without play.
  • the suction roller has a greater inertia than the cutting roller.
  • the suction roll is designed with a high mass inertia and the cutting roll with a small mass inertia in order to make the suction roll as independent as possible or essentially independent of vibrations and possible positional deviations from the normal position.
  • the moment of inertia of the suction roller preferably by at least a factor of 5, is greater than the moment of inertia of the cutting roller.
  • the moment of inertia of the suction roller is greater by at least a factor of 8 or 10 or 12 or 15 or 20 or greater than 20 than the moment of inertia of the cutting roller.
  • the object is also achieved by a machine of the tobacco processing industry, in particular a filter attachment machine, which is designed with a device described above for cutting a strip of material web of the tobacco processing industry, in particular a tipping paper strip, into material strip sections.
  • a machine of the tobacco processing industry in particular a filter attachment machine, which is designed with a device described above for cutting a strip of material web of the tobacco processing industry, in particular a tipping paper strip, into material strip sections.
  • the object is achieved by a method for cutting a material web strip of the tobacco processing industry, in particular a covering paper strip, wherein the material web strip is conveyed to a device for cutting the material web strip and is cut into material web strip sections by means of the device, the device for cutting the material web strip a Cutting roller and a suction roller interacting with the cutting roller, the material web strip being guided between the cutting roller and the suction roller, and the cutting roller having cutting blades in the circumferential direction, the suction roller having grooves in the circumferential direction for receiving cutting blades of the cutting roller with simultaneous counter-rotating rotation of the cutting roller and the suction roller, the cutting blades of the cutting roller each dipping into a groove of the suction roller and being brought into contact with a groove flank of the groove to form a scissor cut, the suction roller using only one, preferably the suction roller directly driving and position-regulated or speed-regulated, suction roll drive is set in rotation and the cutting roller is set in rotation by means of exclusively one, preferably the cutting roller
  • the drive torque of the cutting roller drive is regulated as a function of the position of the cutting roller when the scissors cut is carried out.
  • the speed or the positions of the suction roller drive and / or the drive torque of the cutting roller drive is regulated in such a way that an overpressure of the cutting knife does not exceed a maximum setpoint value and / or does not fall below a minimum setpoint value when the scissor cut is formed.
  • the drive torque of the cutting roller is reduced, or the drive torque of the cutting roller is increased when the minimum setpoint value for the cutting knife is overpressed.
  • the suction roll drive is expediently designed as a servo motor and / or the cutting roll drive is designed as a servo motor.
  • an embodiment of the method is characterized in that, before the device for cutting the strip of material web is put into operation, at least one position or several, preferably all, positions of the suction roll and at least one position or several, preferably all positions of the cutting roller when introducing a cutting knife or when introducing the cutting knife into the respective groove interacting with the cutting knife, preferably individually.
  • the number of grooves in the suction roller corresponds to the number of cutting blades on the cutting roller, so that in each case a cutting blade is always introduced into the same groove that corresponds to it.
  • the suction roll drive and the cutting roll drive are e.g. Connected to one another via a transmission, in particular a gear transmission, with a predetermined transmission ratio in particular remaining constant.
  • a preferred embodiment of the method is characterized in that the position or positions of the suction roller are recorded and the position or positions of the cutting roller are recorded automatically.
  • the corresponding position pairings of the cutting knife and groove flanks are measured via the rotary encoders of the individual drives of the cutting roller and the suction roller. Due to the tolerances of the components, such as cutting blades, cutting rollers, suction rollers and groove flanks (as counter-blades), there are different position angles for the Cutting start and for the cutting end.
  • the cutting roller drive it is possible for the cutting roller drive to set or approach a corrected angle for the cutting start of each pairing (cutting knife and groove flank) based on the recorded measured values or the recorded positions.
  • the automatic calibration is characterized in that an angular relationship of the positions between the suction roll and the cutting roll and, if necessary, the gearbox and other components is checked.
  • Embodiments according to the invention can fulfill individual features or a combination of several features.
  • Fig. 1 shows a schematic side view of a device 1 for feeding a tipping paper strip 2 in a schematically designated filter attachment machine F.
  • a filter attachment machine from HAUNI Maschinenbau AG, Hamburg, is known under the name MAX.
  • the device 1 is described below with reference to the path of the covering paper strip 2.
  • the tipping paper strip 2 is drawn off by means of a pair of draw-off rollers 6 and 8 from a supply roll 4 rotating about an axis 5 in the direction of the arrow.
  • One of the two take-off rollers, here the take-off roller 6, is driven by a drive 11 via a toothed belt 7.
  • the crusher 14 breaks the paper of the tipping paper strip 2 so that it can later be more easily wrapped around assembled filter-cigarette groups.
  • a gluing device 22 for applying glue patterns to the covering paper strip 2 Downstream of the take-off rollers 6 and 8, a gluing device 22 for applying glue patterns to the covering paper strip 2 is provided.
  • the gluing device 22 has a glue nozzle 24. With the aid of the glue nozzle 24, glue patterns are applied to the covering paper strip 2.
  • the covering paper strip 2 passes via deflection rollers 26, 28 and 29 to a covering cutting device 30 for periodically separating covering paper sections from the covering paper strip 2.
  • the covering cutting device 30 is a fixed path length in the direction of movement 20 of the covering paper strip 2 behind the glue nozzle 24 arranged. If the length of the covering paper strip 2 between the glue nozzle 24 and the covering cutting device 30 is always the same, the glue pattern produced is aligned with the position of the cut during the cut by activating the glue nozzle 24.
  • an oscillator 44 in contact with the covering paper strip 2 is arranged and synchronized with the rollers 32 and 36 in order to hold the covering paper strip 2 back slightly against the direction of movement 20 relative to the roller surface after each cut by one of the cutting knives 34, see above that a distance is created between the individual cut sections or covering paper sheets 39 of the covering paper strip 2.
  • the oscillator 44 thus converts the uniform feed of the tipping paper strip 2 to the gluing device 22 into a non-uniform feed to the covering cutting device 30.
  • the lining cutting device 30 has a cutting roller 32 with knives 34 arranged on its circumference and slightly angled with respect to the radial, and a suction roller 36 which rotates in opposite directions and which receives the lining paper strip 2 and is designed as a lining paper roller.
  • the suction roller 36 has groove-like recesses 38 or grooves 38 into which the cutting knives 34 dip due to the spacing of the rollers 32 and 36 from one another while the two rollers 32 and 36 rotate, in order to separate the tipping paper strip 2 sitting on the circumference of the suction roller 36.
  • the suction roll 36 has suction bores 42 connected to a suction device for holding the covering paper strip 2 and the separated covering paper sheets 39 on the suction roll 36.
  • the Fig. 2 shows schematically the covering cutting device 30 in an enlarged detail.
  • the covering paper strip 2 is conveyed to the suction roller 36.
  • the peripheral surface of the suction roll 36 is in Usually subjected to suction air, which is supplied via suction air bores 42 and 43 and holds and guides the covering paper strip 2 on the surface of the suction roller 36.
  • the suction roller 36 has in its circumferential surface axially parallel to the axis of rotation grooves or recesses 38, the front groove flank 47 of which in the running direction is provided as a cutting edge for the separating cut or scissor cut separating the covering paper sheets 39 from the covering paper strip 2.
  • a speed-regulated servo motor 56 is provided to drive the suction roll 36, which is designed as a suction roll, so that the suction roll 36 is driven directly by the servo motor 56.
  • the cutting roller 32 cooperating with the suction roller 36 is driven individually by means of a separate torque-controlled servomotor 52.
  • the cutting roller 32 designed as a cutting roller, carries on its circumference cutting blades 34 running transversely to the direction of rotation, which dip one after the other into the grooves 38 of the suction roller 36 as they rotate.
  • the cutting edges of the cutting knives 34 are e.g. on a conical surface in alignment or preferably at an angle to the axis of the cutting roller 32, the cut beginning with the dipping of the cutting edge into the corresponding groove or recess 38 of the suction roller 36 with a scissor cut and after the cutting edge has dipped in with the severing of the covering paper strip ends.
  • the suction roller 36 has support bodies 50 which are arranged in the circumferential direction of the suction roller 36 and which have corresponding support surfaces 40 on the outside for the covering paper sheets 39 or the covering paper strips 2.
  • the recesses 38 are formed as an interruption between the support bodies 50.
  • a cutting knife 34 dips into the associated recess 38 of the suction roller 36, which is designed as a groove, without touching the groove flank 47 acting as a cutting edge. Then the scissors cut begins with the contact of the cutting edge of the cutting knife 34 with the cutting edge of the groove flank 47, whereby when the cutting roller 32 and the suction roller 36 rotate in opposite directions, the point of contact between the cutting edge of the groove flank 47 and the cutting knife 34 along the cutting edge of the cutting knife 34 to the other end of the cutting edge migrates.
  • a straight cut is made in cooperation with a straight groove flank 47.
  • the cutting knife 34 then detaches itself from the groove flank 47 of the suction roller 36, which forms the second cutting edge, and emerges again from the recess 38. As a result, a pulling severing cut or a scissors cut to sever the covering paper sheet 39 from the covering paper strip 2 is carried out.
  • the suction roller 36 is driven individually by means of the servo motor 56 and the cutting roller 32 by means of the servo motor 52 at the same time, it is possible for the drive torques of the suction roller 36 and the cutting roller 32 to be regulated individually so that the respective regulation of the drive torques the suction roller 36 and the cutting roller 32, the mutual pressure of the interacting cutting elements (knife 34 and groove flank 47) can be varied, in particular such that the overpressure of the cutting knife 34 required for the scissor cut does not exceed a maximum or a target value.
  • overpressure of the cutting blades 34 when performing the scissor cut is reduced, whereby the wear of the cutting blades 34 is also reduced.
  • cutting blades 34 with a straight cutting contour of the cutting edge are used. It is also possible within the scope of the invention that the cutting edges of the cutting knives 34 have a cutting contour that deviates from a straight line, for example an arcuate cut contour.
  • the cutting contour of the cutting knife can be designed, for example, concave or convex, with the contours of the groove flanks 47 interacting with the knives 34 being designed to be functionally complementary.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Replacement Of Web Rolls (AREA)

Description

Die Erfindung betrifft eine Einrichtung zum Schneiden eines Materialbahnstreifens der Tabak verarbeitenden Industrie, insbesondere eines Belagpapierstreifens, in Materialbahnabschnitte sowie eine Maschine der Tabak verarbeitenden Industrie, insbesondere Filteransetzmaschine.The invention relates to a device for cutting a strip of material web from the tobacco processing industry, in particular a covering paper strip, into material web sections and a machine in the tobacco processing industry, in particular a filter attachment machine.

Ferner betrifft die Erfindung ein Verfahren zum Schneiden eines Materialbahnstreifens der Tabak verarbeitenden Industrie, insbesondere eines Belagpapierstreifens, wobei der Materialbahnstreifen zu einer Einrichtung zum Schneiden des Materialbahnstreifens gefördert wird und mittels der Einrichtung in Materialbahnstreifenabschnitte geschnitten wird.The invention also relates to a method for cutting a material web strip in the tobacco processing industry, in particular a covering paper strip, the material web strip being conveyed to a device for cutting the material web strip and being cut into material web strip sections by means of the device.

In Filteransetzmaschinen wird zwischen geschnittenen und längsaxial beabstandeten Tabakstöcken jeweils ein Filterstück bzw. Mundstück doppelter Länge eingelegt, wobei anschließend ein beleimtes Belagpapierblättchen an die zusammengestellte Zigarette-Mundstück-Zigarette-Gruppe angeheftet wird.In filter attaching machines, a filter piece or mouthpiece of double length is inserted between cut and axially spaced tobacco sticks, and a glued tipping paper sheet is then attached to the assembled cigarette-mouthpiece-cigarette group.

In DE 39 18 137 A1 ist beispielsweise ein Belagpapierapparat einer Filteransetzmaschine beschrieben. Hierbei wird das beleimte Belagpapier als endloser Belagpapierstreifen zugeführt und mittels einer Schneidvorrichtung in Einzelblättchen bzw. Belagpapierblättchen geschnitten.In DE 39 18 137 A1 is for example a tipping paper apparatus of a filter attaching machine described. Here, the glued covering paper is fed in as an endless covering paper strip and cut into individual sheets or covering paper sheets by means of a cutting device.

Die Schneidvorrichtung besteht aus einer Schneidwalze mit nach außen gerichteten Messern sowie einer Saugwalze mit Ausnehmungen, deren in Rotationsrichtung führende Flanke als Schneidkante ausgebildet ist. Zwischen den Nuten weist die Saugwalze mit Saugluft beaufschlagte Oberflächen auf, an denen der Belagpapierstreifen und die Belagpapierblättchen gehalten bzw. geführt werden. Die Messer der rotierenden Schneidwalze greifen in die Nuten der gegenläufig rotierenden Belagpapierwalze ein, wobei der Belagpapierstreifen jeweils zwischen einem Messer der Schneidwalze und einer Schneidkante der Saugwalze geschnitten wird.The cutting device consists of a cutting roller with outwardly directed knives and a suction roller with recesses, the edge of which leading in the direction of rotation is designed as a cutting edge. Between the grooves, the suction roller has surfaces acted upon by suction air, on which the covering paper strip and the covering paper leaves are held or guided. The knives of the rotating cutting roller engage in the grooves of the tipping paper roll rotating in opposite directions, the tipping paper strip being cut between a knife of the cutting roller and a cutting edge of the suction roller.

Bei dem in DE 39 18 137 A1 beschriebenen Schneidprozess wird ein ziehender Trennschnitt bzw. ein Scherschnitt zur Abtrennung der Belagblättchen vom Belagmaterialstreifen durchgeführt. Hierbei gleiten die Schneidkanten des Schneidmessers und die Schneidkanten der Saugwalze unter punktförmiger gegenseitiger Anlage aneinander entlang.The in DE 39 18 137 A1 described cutting process, a pulling severing cut or a shearing cut is carried out to separate the covering leaflets from the covering material strips. Here, the cutting edges of the cutting knife and the cutting edges of the suction roll slide along one another with point-like mutual contact.

Ferner offenbart WO 2014/091192 A1 einen Belagapparat zum Schneiden eines Belagpapierstreifens in mehrere Belagpapierstreifenabschnitte, wobei der Belagpapierstreifen in Querrichtung und in Längsrichtung geschnitten wird. Die Trommeln und Walzen werden durch ein Antriebssystem angetrieben, wobei hierzu ein oder mehrere elektrische Motoren, wie zum Beispiel Servomotoren oder Schrittmotoren, vorgesehen sein können. Hierbei ist weiter vorgesehen, dass zum Antrieb jeder Komponente eine zentrale Regeleinheit vorgesehen ist, um die Geschwindigkeit und Ausrichtung der Trommeln zu regeln. Darüber hinaus kann in einer Alternative ein zentraler Antriebsmotor verwendet werden, der über Zahnriemen oder Getriebe oder Kettenantriebe mit den Trommeln verbunden ist. Ausgehend von diesem Stand der Technik besteht die Aufgabe der Erfindung darin, den Schneidprozess an einer Schneidvorrichtung zum Abtrennen von Belagblättchen von einem Belagpapierstreifen in einer Filteransetzmaschine der Tabak verarbeitenden Industrie zu verbessern.Also disclosed WO 2014/091192 A1 a tipping apparatus for cutting a tipping paper strip into several tipping paper strip sections, the tipping paper strip being cut in the transverse direction and in the longitudinal direction. The drums and rollers are driven by a drive system, for which purpose one or more electric motors, such as servo motors or stepper motors, can be provided. It is further provided that a central control unit is provided for driving each component in order to control the speed and alignment of the drums. In addition, as an alternative, a central drive motor can be used which is connected to the drums via toothed belts or gears or chain drives. Starting from this prior art, the object of the invention is to improve the cutting process on a cutting device for separating tipping leaves from a tipping paper strip in a filter attachment machine of the tobacco processing industry.

Gelöst wird diese Aufgabe durch eine Einrichtung zum Schneiden eines Materialbahnstreifens der Tabak verarbeitenden Industrie, insbesondere eines Belagpapierstreifens, in Materialbahnabschnitte mit einer Schneidwalze und eine mit der Schneidwalze zusammenwirkenden Saugwalze, wobei zwischen der Schneidwalze und der Saugwalze der Materialbahnstreifen geführt ist oder wird, und wobei die Schneidwalze in Umfangsrichtung Schneidmesser aufweist, wobei die Saugwalze in Umfangsrichtung Nuten zur Aufnahme von Schneidmessern der Schneidwalze aufweist, wobei bei gleichzeitiger gegenläufiger Rotation der Schneidwalze und der Saugwalze die Schneidmesser der Schneidwalze in jeweils eine Nut der Saugwalze eintauchen und in Kontakt mit einer Nutflanke der Nut unter Ausbildung eines Scherenschnitts bringbar sind oder gebracht werden, wobei für die Rotation der Saugwalze ausschließlich ein, vorzugsweise die Saugwalze direkt antreibender und lagegeregelter oder geschwindigkeitsgeregelter, Saugwalzenantrieb vorgesehen ist, und wobei für die Rotation der Schneidwalze ausschließlich ein, vorzugsweise die Schneidwalze direkt antreibender, momentengeregelter Schneidwalzenantrieb vorgesehen ist.This object is achieved by a device for cutting a material web strip of the tobacco processing industry, in particular a covering paper strip, into material web sections with a cutting roller and a suction roller interacting with the cutting roller, the material web strip being or being guided between the cutting roller and the suction roller, and wherein the Cutting roller has cutting blades in the circumferential direction, the suction roller having grooves in the circumferential direction for receiving cutting blades of the cutting roller, with the cutting roller simultaneously rotating in opposite directions and the suction roll immerses the cutting knife of the cutting roll in a groove of the suction roll and can be brought or brought into contact with a groove flank of the groove to form a scissor cut, whereby for the rotation of the suction roll only one, preferably the suction roll directly driving and position-controlled or speed-controlled , Suction roller drive is provided, and wherein only one torque-controlled cutting roller drive is provided for the rotation of the cutting roller, preferably directly driving the cutting roller.

Dadurch, dass für die Saugwalze mit einer hohen Massenträgheit ein nicht-momentengesteuerter bzw. ein (dreh-)geschwindigkeitsgeregelter oder lagegeregelter Saugwalzenantrieb und für die Schneidwalze mit einer kleinen Massenträgheit ein direkt antreibender drehmomentengeregelter Schneidwalzenantrieb vorgesehen ist, ist es möglich, durch Regelung der Antriebsmomente der Schneidwalze bzw. der Saugwalze den Andruck der für den Scherenschnitt zusammenwirkenden Schneidelemente (Schneidmesser und Nutflanke) zu variieren.Due to the fact that a non-torque-controlled or a (rotation) speed-controlled or position-controlled suction roller drive is provided for the suction roller with a high mass inertia and a directly driving torque-controlled cutting roller drive is provided for the cutting roller with a low mass inertia, it is possible to control the drive torques of the Cutting roller or the suction roller to vary the pressure of the cutting elements (cutting knife and groove flank) that work together for the scissor cut.

Bei der Ausführung des Scherenschnitts erfolgt während der gegenläufigen Rotation der Schneidwalze und der Saugwalze eine punktförmige Berührung zwischen dem in die Nut eingreifenden Schneidmessers und der geraden Schneidkante der Nutflanke, wobei der Berührpunkt sich durch die Drehung der beiden Walzen in eine Richtung bewegt. Dadurch ergibt sich automatisch ein ziehender Schnitt. Dadurch, dass sich die Schneidwalze und die Saugwalze in gegenläufiger Richtung verdrehen, bewegt sich der Berührpunkt von Schneidwalze und der Nutflanke in einer Richtung über die entsprechende als Schneidkante ausgebildete Nutflanke der Nut. Da sich bei der Drehung der Schneidwalze der Radius des Messers bzw. der (radiale) Abstand zwischen der Rotationsachse der Schneidwalze und dem Schnittpunkt des Messers an der Nutflanke der Saugwalze ändert, wird bei dem Eintauchen des Schneidmessers in eine Nut das Messer leicht verbogen, wodurch sich der Berührpunkt zwischen dem Messer und der Nutflanke bewegt. Hierdurch wird ein ziehender Schnitt erreicht bzw. ausgebildet. Die Verbiegung des Schneidmessers wird auch als sogenannte Überdrückung bezeichnet.When performing the scissor cut, during the opposite rotation of the cutting roller and the suction roller, there is point contact between the cutting knife engaging the groove and the straight cutting edge of the groove flank, the contact point moving in one direction due to the rotation of the two rollers. This automatically results in a pulling cut. Because the cutting roller and the suction roller rotate in opposite directions, the contact point of the cutting roller and the groove flank moves in one direction over the corresponding groove flank of the groove, which is designed as a cutting edge. Since the radius of the knife or the (radial) distance between the axis of rotation of the cutting roll and the point of intersection of the knife on the groove flank of the suction roll changes when the cutting roll rotates, the knife is slightly bent when the cutting knife plunges into a groove the point of contact between the knife and the groove flank moves. This makes a pulling one Cut reached or formed. The bending of the cutting knife is also referred to as so-called overpressure.

Dadurch, dass der Saugwalzenantrieb geschwindigkeitsgeregelt bzw. drehgeschwindigkeitsgeregelt oder lagegeregelt und der Schneidwalzenantrieb momentengeregelt ausgebildet sind, wird erreicht, dass der Verschleiß herabgesetzt oder gar ein Brechen des Schneidmessers verhindert wird. Darüber hinaus wird auch erreicht, dass durch die Verwendung des geschwindigkeitsgeregelten bzw. lagegeregelten Saugwalzenantriebs und des (dreh-)momentengeregelten Schneidwalzenantriebs breitere Materialbahnen, z.B. mit einer Breite größer als 74 mm, auf einfache Weise geschnitten werden können, ohne dass eine signifikante Überdrückung des Schneidmessers ausgeführt wird. Zusätzlich wird erreicht, dass auch eine von einer Geraden abweichende Schnittkontur realisiert werden kann. Hierzu sind der Antrieb der Saugwalze mit einer Geschwindigkeitsregeleinrichtung oder Lageregeleinrichtung und der Antrieb der Schneidwalze mit einer Momentenregeleinrichtung ausgebildet.The fact that the suction roller drive is speed-controlled or rotational speed-controlled or position-controlled and the cutting roller drive is torque-controlled means that wear is reduced or even breaking of the cutting blade is prevented. In addition, the use of the speed-controlled or position-controlled suction roll drive and the torque-controlled cutting roll drive mean that wider material webs, e.g. with a width greater than 74 mm, can be cut in a simple manner without the cutting knife being significantly overpressed. In addition, it is achieved that a cutting contour that deviates from a straight line can also be implemented. For this purpose, the drive of the suction roll is designed with a speed control device or position control device and the drive of the cutting roll is designed with a torque control device.

Dadurch, dass die einzeln angetriebene Saugwalze, die auch als Gegenwalze bezeichnet wird, durch einen separat regelbaren Einzelantrieb angetrieben wird, ist es möglich, die Antriebsgeschwindigkeit oder die Lagepositionen des Saugwalzenantriebs und gleichzeitig das Antriebsmoment des Schneidwalzenantriebs zu regeln, wodurch die Überdrückung des jeweiligen Schneidmessers für den Schneidvorgang geregelt wird bzw. begrenzt wird. Hierzu sind der Saugwalzenantrieb und der Schneidwalzenantrieb z.B. mittels eines, vorzugsweise spielbehafteten, Getriebes miteinander verbunden.Because the individually driven suction roller, which is also referred to as the counter roller, is driven by a separately controllable individual drive, it is possible to regulate the drive speed or the position of the suction roller drive and at the same time the drive torque of the cutting roller drive, thereby overpressing the respective cutting blade for the cutting process is regulated or limited. For this purpose, the suction roll drive and the cutting roll drive are e.g. connected to one another by means of a transmission, preferably with play.

Insbesondere ist das Getriebe im Produktionsbetrieb der Einrichtung bzw. der Maschine, d.h. bei der Herstellung von Zigaretten, wirkungslos, da in diesem Betriebszustand der Einrichtung oder der Maschine der Saugwalzenantrieb die Saugwalze und der Schneidwalzenantrieb die Schneidwalze jeweils direkt und unabhängig voneinander antreiben. Im Nicht-Produktionsmodus, d.h. im Handbetrieb oder bei einem Spannungsausfall, bei dem ein Notlauf der Saugwalze und der Schneidwalze erfolgt, oder bei der Inbetriebnahme sowie beim (automatischen) Einmessen, ist das Getriebe wirksam. Im Handbetrieb wird über ein Handrad die Schneidwalze in Produktionsrichtung gedreht, wobei in diesem Nicht-Produktionsmodus die Saugwalze über das dann wirksame Getriebe mitgedreht wird. Bei einem Spannungsabfall ist das Getriebe ebenfalls wirksam, da bei gleichzeitiger Drehung von Saugwalze und Schneidwalze mittels des Getriebes die Saugwalze und die Schneidwalze zerstörungsfrei zum Stillstand kommen.In particular, the transmission is ineffective in the production operation of the device or the machine, ie in the production of cigarettes, since in this operating state of the device or the machine the suction roller drive drives the suction roller and the cutting roller drive drives the cutting roller directly and independently of one another. In non-production mode, i.e. in manual mode or in the event of a power failure, When the suction roll and the cutting roll run in emergency mode, or during commissioning and (automatic) calibration, the transmission is effective. In manual mode, the cutting roller is rotated in the production direction via a handwheel, and in this non-production mode, the suction roller is rotated via the then effective gear. In the event of a voltage drop, the gear mechanism is also effective, since when the suction roller and cutting roller rotate simultaneously by means of the gear mechanism, the suction roller and the cutting roller come to a standstill without being destroyed.

Beim Einmessen der Winkelpositionen von Saugwalze und Schneidwalze für die Schneidvorgänge werden in diesem Nicht-Produktionsmodus die Saugwalze und Schneidwalze mittels des Getriebes gleichzeitig gedreht, so dass es möglich ist, die Winkelbeziehungen der Positionen der Saugwalze und der Schneidwalze und auch des Getriebes zu erfassen und zu überprüfen. Im Produktionsbetrieb, in dem das Getriebe wirkungslos ist, wird der Schneidwalzenantrieb anhand der im vorangegangenen Nicht-Produktionsmodus erfassten Winkelpositionen der Schneidwalze und der Saugwalze der Schneidwalzenantrieb entsprechend betrieben, um beispielsweise eine Überdrückung der Schneidmesser beim Schneidprozess zu vermeiden und/oder breitere Materialstreifen und auch deren Ränder exakt zu schneiden.When measuring the angular positions of the suction roller and cutting roller for the cutting processes, in this non-production mode, the suction roller and cutting roller are rotated simultaneously by means of the gear unit, so that it is possible to record and to determine the angular relationships between the positions of the suction roller and the cutting roller and also of the gear unit check. In production operation, in which the gearbox is ineffective, the cutting roller drive is operated accordingly based on the angular positions of the cutting roller and the suction roller of the cutting roller drive recorded in the previous non-production mode, in order, for example, to avoid overpressing the cutting blades during the cutting process and / or to avoid wider material strips and theirs Cut edges exactly.

Dadurch, dass sich das Schneidmesser und die Nutflanke (als Schneidkante) während des Schneidvorgangs stets nur in einem definierten Punkt berühren, ist es möglich, die Verbiegung des Schneidmessers über den Schnitt durch Regelung des Antriebsmoments gezielt einzustellen. Dabei ist es möglich, die Verspannung der Walzen zu begrenzen oder auch gezielt zu erhöhen.Because the cutting knife and the groove flank (as the cutting edge) only touch each other at a defined point during the cutting process, it is possible to specifically adjust the bending of the cutting knife via the cut by regulating the drive torque. It is possible to limit the tension on the rollers or to increase it in a targeted manner.

Durch den Saugwalzenantrieb mit seiner Geschwindigkeitsregelung oder Lagepositionsregelung und den Schneidwalzenantrieb mit seiner Momentenregelung kann die Verspannung der beim Schneidvorgang beteiligten Walzen geregelt werden, insbesondere derart, dass eine gezielte Einstellung eines Schnitts erreicht wird, wodurch es auch möglich ist, dass breitere Materialbahnstreifen, z.B. mit einer Breite größer als 74 mm, in Materialbahnstreifenabschnitte geschnitten werden.The tensioning of the rollers involved in the cutting process can be controlled by the suction roll drive with its speed control or position control and the cutting roll drive with its torque control, in particular in such a way that a targeted setting of a cut is achieved, whereby it is also possible that wider material web strips, for example with a width greater than 74 mm, are cut into material web strip sections.

Dazu ist in einer Weiterbildung vorgesehen, dass das Antriebsmoment des Saugwalzenantriebs in Abhängigkeit der Geschwindigkeit des Saugwalzenantriebs bei der Ausführung des Scherenschnitts geregelt wird oder regelbar ist und/oder dass das Antriebsmoment des Schneidwalzenantriebs in Abhängigkeit der Position des Schneidwalzenantriebs bei der Ausführung des Scherenschnitts geregelt wird oder regelbar ist.For this purpose, it is provided in a further development that the drive torque of the suction roll drive is regulated or can be regulated as a function of the speed of the suction roll drive when performing the scissor cut and / or that the drive torque of the cutting drum drive is controlled depending on the position of the cutting drum drive when executing the scissor cut or is adjustable.

Insbesondere ist es bei einer Weiterbildung der Einrichtung vorteilhaft, dass die Geschwindigkeit oder die Lagepositionen des Saugwalzenantriebs und/oder das Antriebsmoment des Schneidwalzenantriebs derart geregelt werden, dass eine Überdrückung eines Schneidmessers bei Ausbildung des Scherenschnitts einen vorbestimmten maximalen Sollwert für die Überdrückung nicht übersteigt und/oder einen minimalen Sollwert nicht unterschreitet.In particular, in a further development of the device, it is advantageous that the speed or the position positions of the suction roller drive and / or the drive torque of the cutting roller drive are regulated in such a way that an overpressure of a cutting knife when the scissor cut is formed does not exceed a predetermined maximum setpoint value for the overpressure and / or does not fall below a minimum setpoint.

Durch die Regelung der Geschwindigkeiten von Saugwalze und der Antriebsmomente der Schneidwalze wird beim Schneidvorgang der gegenseitige Andruck der Nutflanke und des damit zusammenwirkenden Schneidmessers derart variiert, dass die beim Scherenschnitt vorhandene bzw. notwendige Überdrückung des Schneidmessers ein Maximum nicht übersteigt, so dass es möglich ist, die breitere Materialbahnen und auch deren Ränder sauber zu schneiden. Dies wird insbesondere dadurch erreicht, dass das Antriebsmoment der einzeln angetriebenen Schneidwalze im Zeitpunkt der Überdrückung reduziert wird, wodurch auch der Verschleiß des Messers herabgesetzt wird. Auch ist es möglich, dass das Antriebsmoment des Schneidwalzenantriebs derart geregelt wird oder ist, so dass bei einer vorbestimmten oder optimal eingestellten Überdrückung auch die Ränder der Materialbahnen bzw. der Materialbahnenabschnitte sauber geschnitten werden.By regulating the speeds of the suction roller and the drive torques of the cutting roller, the mutual pressure of the groove flank and the cutting knife interacting with it is varied during the cutting process in such a way that the overpressure of the cutting knife that is present or necessary during the scissor cut does not exceed a maximum, so that it is possible to cleanly cut the wider material webs and their edges. This is achieved in particular in that the drive torque of the individually driven cutting roller is reduced at the time of the overpressure, which also reduces the wear on the knife. It is also possible that the drive torque of the cutting roller drive is or is regulated in such a way that with a predetermined or optimally set overpressure, the edges of the material webs or the material web sections are also cut cleanly.

Im Rahmen der Erfindung ist es möglich, dass die Schneidkanten der Schneidmesser mit einer geraden Schneidkontur verwendet werden können. Darüber hinaus ist es auch möglich, Schneidmesser einzusetzen, die Schneidkanten mit einer von einer Geraden abweichende Schnittkontur aufweisen, wie z.B. bogenförmig ausgestaltete Messer.In the context of the invention it is possible that the cutting edges of the cutting knives can be used with a straight cutting contour. In addition, it is also possible to use cutting knives that have cutting edges with a cutting contour deviating from a straight line, e.g. bow-shaped knives.

Dadurch, dass gemäß der Erfindung eine Überdrückung eines Schneidmessers bei Ausbildung des Scherenschnitts über einen maximalen Sollwert hinaus nicht übersteigt, wird aufgrund eines geringeren Verschleißes die Nutzungsdauer der Schneidmesser verlängert.Because, according to the invention, an overpressure of a cutting knife when forming the scissor cut does not exceed a maximum setpoint value, the useful life of the cutting knife is extended due to less wear.

Dazu ist in einer bevorzugten Ausgestaltung weiter vorgesehen, dass bei Überdrückung des Schneidmessers und bei Erreichen des maximalen Sollwerts für die Überdrückung des Schneidmessers das Antriebsmoment der Schneidwalze reduziert wird oder reduzierbar ist. Im Rahmen der Erfindung ist in einer Alternative vorgesehen, dass bei zu geringem Andruck des Schneidmessers und Erreichen eines minimalen Sollwerts für den Andruck des Schneidmessers das Antriebsmoment der Schneidwalze erhöht wird oder erhöhbar ist.For this purpose, it is further provided in a preferred embodiment that the drive torque of the cutting roller is reduced or can be reduced when the cutting knife is overpressed and when the maximum setpoint value for overpressing the cutting knife is reached. In the context of the invention, it is provided in an alternative that the drive torque of the cutting roller is increased or can be increased if the pressure of the cutting blade is too low and a minimum setpoint value for the pressure of the cutting blade is reached.

Vorzugsweise sind der Saugwalzenantrieb als Servomotor und/oder der Schneidwalzenantrieb als Servomotor ausgebildet.The suction roll drive is preferably designed as a servomotor and / or the cutting roll drive is designed as a servomotor.

In einer Ausgestaltung ist es vorteilhaft, wenn die Schneidkanten der Schneidmesser eine nicht-geradlinige Schnittkontur aufweisen. Alternativ weisen die Schneidkanten der Schneidmesser eine gerade Schnittkontur auf.In one embodiment, it is advantageous if the cutting edges of the cutting knives have a non-rectilinear cutting contour. Alternatively, the cutting edges of the cutting knives have a straight cutting contour.

Darüber hinaus ist es bei der Einrichtung gemäß einer Weiterbildung vorgesehen, dass im Nicht-Produktionsmodus der Schneidwalzenantrieb und der Saugwalzenantrieb, insbesondere unter Verwendung eines Getriebes, weiter vorzugsweise eines Zahnradgetriebes, miteinander verbunden sind. Vorzugsweise ist das Getriebe als spielbehaftetes, d.h. nicht-spielfreies, Getriebe ausgebildet.In addition, it is provided in the device according to a further development that, in the non-production mode, the cutting roller drive and the suction roller drive are connected to one another, in particular using a gear, more preferably a gear drive. The gear mechanism is preferably designed as a gear mechanism with backlash, that is to say not without play.

Außerdem ist es bevorzugt, dass die Saugwalze eine größere Massenträgheit aufweist als die Schneidwalze. Insbesondere ist die Saugwalze mit einer großen Massenträgheit und die Schneidwalze mit einer kleinen Massenträgheit ausgeführt, um die Saugwalze möglichst oder im Wesentlichen unabhängig gegenüber Schwingungen und eventuellen Lageabweichungen aus der Regellage zu machen.In addition, it is preferred that the suction roller has a greater inertia than the cutting roller. In particular, the suction roll is designed with a high mass inertia and the cutting roll with a small mass inertia in order to make the suction roll as independent as possible or essentially independent of vibrations and possible positional deviations from the normal position.

Dazu ist vorteilhafterweise vorgesehen, dass das Trägheitsmoment der Saugwalze, vorzugsweise um mindestens den Faktor 5, größer als das Trägheitsmoment der Schneidwalze ist. Insbesondere ist das Trägheitsmoment der Saugwalze größer um mindestens den Faktor 8 oder 10 oder 12 oder 15 oder 20 oder größer als 20 als das Trägheitsmoment der Schneidwalze.For this purpose, it is advantageously provided that the moment of inertia of the suction roller, preferably by at least a factor of 5, is greater than the moment of inertia of the cutting roller. In particular, the moment of inertia of the suction roller is greater by at least a factor of 8 or 10 or 12 or 15 or 20 or greater than 20 than the moment of inertia of the cutting roller.

Ferner wird die Aufgabe gelöst durch eine Maschine der Tabak verarbeitenden Industrie, insbesondere Filteransetzmaschine, die mit einer voranstehend beschriebenen Einrichtung zum Schneiden eines Materialbahnstreifens der Tabak verarbeitenden Industrie, insbesondere eines Belagpapierstreifens, in Materialstreifenabschnitten ausgebildet ist. Zur Vermeidung von Wiederholungen wird auf die obigen Ausführungen ausdrücklich verwiesen.The object is also achieved by a machine of the tobacco processing industry, in particular a filter attachment machine, which is designed with a device described above for cutting a strip of material web of the tobacco processing industry, in particular a tipping paper strip, into material strip sections. To avoid repetition, express reference is made to the above statements.

Ferner wird die Aufgabe gelöst durch ein Verfahren zum Schneiden eines Materialbahnstreifens der Tabak verarbeitenden Industrie, insbesondere eines Belagpapierstreifens, wobei der Materialbahnstreifen zu einer Einrichtung zum Schneiden des Materialbahnstreifens gefördert wird und mittels der Einrichtung in Materialbahnstreifenabschnitte geschnitten wird, wobei die Einrichtung zum Schneiden des Materialbahnstreifens eine Schneidwalze und eine mit der Schneidwalze zusammenwirkende Saugwalze aufweist, wobei zwischen der Schneidwalze und der Saugwalze der Materialbahnstreifen geführt wird, und wobei die Schneidwalze in Umfangsrichtung Schneidmesser aufweist, wobei die Saugwalze in Umfangsrichtung Nuten zur Aufnahme von Schneidmessern der Schneidwalze aufweist, wobei bei gleichzeitiger, gegenläufiger Rotation der Schneidwalze und der Saugwalze die Schneidmesser der Schneidwalze in jeweils eine Nut der Saugwalze eintauchen und in Kontakt mit einer Nutflanke der Nut unter Ausbildung eines Scherenschnitts gebracht werden, wobei die Saugwalze mittels ausschließlich eines, vorzugsweise die Saugwalze direkt antreibenden und lagegeregelten oder geschwindigkeitsgeregelten, Saugwalzenantriebs in Rotation versetzt wird und wobei die Schneidwalze mittels ausschließlich eines, vorzugsweise die Schneidwalze direkt antreibenden, momentengeregelten Schneidwalzenantriebs in Rotation versetzt wird.Furthermore, the object is achieved by a method for cutting a material web strip of the tobacco processing industry, in particular a covering paper strip, wherein the material web strip is conveyed to a device for cutting the material web strip and is cut into material web strip sections by means of the device, the device for cutting the material web strip a Cutting roller and a suction roller interacting with the cutting roller, the material web strip being guided between the cutting roller and the suction roller, and the cutting roller having cutting blades in the circumferential direction, the suction roller having grooves in the circumferential direction for receiving cutting blades of the cutting roller with simultaneous counter-rotating rotation of the cutting roller and the suction roller, the cutting blades of the cutting roller each dipping into a groove of the suction roller and being brought into contact with a groove flank of the groove to form a scissor cut, the suction roller using only one, preferably the suction roller directly driving and position-regulated or speed-regulated, suction roll drive is set in rotation and the cutting roller is set in rotation by means of exclusively one, preferably the cutting roller directly driving, torque-controlled cutting roller drive.

Dazu ist weiter vorgesehen, dass das Antriebsmoment des Schneidwalzenantriebs in Abhängigkeit der Position der Schneidwalze bei der Ausführung des Scherenschnitts geregelt wird.For this purpose, it is further provided that the drive torque of the cutting roller drive is regulated as a function of the position of the cutting roller when the scissors cut is carried out.

Vorzugsweise wird die Geschwindigkeit oder die Lagepositionen des Saugwalzenantriebs und/oder das Antriebsmoment des Schneidwalzenantriebs derart geregelt, dass eine Überdrückung des Schneidmessers bei Ausbildung des Scherenschnitts einen maximalen Sollwert nicht übersteigt und/oder einen minimalen Sollwert nicht unterschreitet.Preferably, the speed or the positions of the suction roller drive and / or the drive torque of the cutting roller drive is regulated in such a way that an overpressure of the cutting knife does not exceed a maximum setpoint value and / or does not fall below a minimum setpoint value when the scissor cut is formed.

Zweckmäßigerweise wird bei Überdrückung des Schneidmessers und bei Erreichen des maximalen Sollwerts für die Überdrückung des Schneidmessers das Antriebsmoment der Schneidwalze reduziert oder bei Erreichen des minimalen Sollwerts für die Überdrückung des Schneidmessers das Antriebsmoment der Schneidwalze erhöht.Appropriately, when the cutting knife is overpressed and when the maximum setpoint value for the overpressure of the cutting knife is reached, the drive torque of the cutting roller is reduced, or the drive torque of the cutting roller is increased when the minimum setpoint value for the cutting knife is overpressed.

Zweckmäßigerweise sind der Saugwalzenantrieb als Servomotor und/oder der Schneidwalzenantrieb als Servomotor ausgebildet.The suction roll drive is expediently designed as a servo motor and / or the cutting roll drive is designed as a servo motor.

Außerdem zeichnet sich eine Ausgestaltung des Verfahrens dadurch aus, dass vor Inbetriebnahme der Einrichtung zum Schneiden des Materialbahnstreifens mindestens eine Position oder mehrere, vorzugsweise alle, Positionen der Saugwalze und mindestens eine Position oder mehrere, vorzugsweise alle, Positionen der Schneidwalze bei Einbringen eines Schneidmessers oder bei Einbringen der Schneidmesser in die jeweilige mit dem Schneidmesser zusammenwirkende Nut, vorzugsweise individuell erfasst werden. Insbesondere entspricht die Anzahl der Nuten der Saugwalze der Anzahl der Schneidmesser der Schneidwalze, so dass jeweils ein Schneidmesser stets in die damit korrespondierende gleiche Nut eingebracht wird.In addition, an embodiment of the method is characterized in that, before the device for cutting the strip of material web is put into operation, at least one position or several, preferably all, positions of the suction roll and at least one position or several, preferably all positions of the cutting roller when introducing a cutting knife or when introducing the cutting knife into the respective groove interacting with the cutting knife, preferably individually. In particular, the number of grooves in the suction roller corresponds to the number of cutting blades on the cutting roller, so that in each case a cutting blade is always introduced into the same groove that corresponds to it.

Durch die Erfassung der mindestens einen Position oder der Positionen der Saugwalze und der Schneidwalze vor Inbetriebnahme der Einrichtung zum Schneiden des Materialbahnstreifens ist es möglich, die exakten Ausrichtungen der Schneidmesser und der jeweils mit dem Schneidmessern zusammenwirkenden Nuten zu erfassen und entsprechend einzustellen, wodurch ebenfalls die wirkenden Kräfte, insbesondere Druckkräfte, am Schneidmesser eingestellt werden. Darüber hinaus ist es durch die Erfassung der Positionen der Saugwalze und der Schneidwalze möglich, z.B. bei einem Spannungsausfall das Getriebe derart zu regeln, dass die Schneidwalze und die Saugwalze bzw. die Schneidmesser und die als Gegenmesser ausgebildeten Nutflanken zerstörungsfrei zum Stillstand kommen. Insbesondere sind hierbei der Saugwalzenantrieb und der Schneidwalzenantrieb z.B. über ein Getriebe, insbesondere ein Zahnradgetriebe, miteinander verbunden, wobei insbesondere ein vorbestimmtes Übersetzungsverhältnis konstant bleibt.By detecting the at least one position or the positions of the suction roll and the cutting roll before the device for cutting the strip of material is put into operation, it is possible to detect the exact alignments of the cutting knives and the grooves that interact with the cutting knives and to set them accordingly, whereby the acting Forces, especially compressive forces, can be set on the cutting knife. Furthermore, by detecting the positions of the suction roll and the cutting roll, it is possible, e.g. to regulate the gearbox in the event of a power failure in such a way that the cutting roller and the suction roller or the cutting knives and the groove flanks designed as counter knives come to a non-destructive standstill. In particular, the suction roll drive and the cutting roll drive are e.g. Connected to one another via a transmission, in particular a gear transmission, with a predetermined transmission ratio in particular remaining constant.

Insbesondere zeichnet sich eine bevorzugte Ausführungsform des Verfahrens dadurch aus, dass die Erfassung der Position oder der Positionen der Saugwalze und die Erfassung der Position oder der Positionen der Schneidwalze automatisch durchgeführt werden. Hierbei werden beim automatischen Einmessen bzw. Erfassen der Positionen die entsprechenden Positionspaarungen von Schneidmesser und Nutflanken (als Gegenmesser) über die Drehgeber der Einzelantriebe der Schneidwalze und der Saugwalze gemessen. Aufgrund der Toleranzen der Bauteile, wie z.B. Schneidmesser, Schneidwalze, Saugwalze und Nutflanken (als Gegenmesser) ergeben sich hierbei verschiedene Positionswinkel für den Schneidanfang sowie für das Schneidende. Im Betrieb der Einrichtung zum Schneiden des Materialbahnstreifens ist es möglich, dass der Schneidwalzenantrieb anhand der erfassten Messwerte bzw. der erfassten Positionen einen korrigierten Winkel für den Schneidanfang jeder Paarung (Schneidmesser und Nutflanke) einstellen bzw. anfahren kann.In particular, a preferred embodiment of the method is characterized in that the position or positions of the suction roller are recorded and the position or positions of the cutting roller are recorded automatically. During the automatic measurement or detection of the positions, the corresponding position pairings of the cutting knife and groove flanks (as counter knife) are measured via the rotary encoders of the individual drives of the cutting roller and the suction roller. Due to the tolerances of the components, such as cutting blades, cutting rollers, suction rollers and groove flanks (as counter-blades), there are different position angles for the Cutting start and for the cutting end. During operation of the device for cutting the strip of material web, it is possible for the cutting roller drive to set or approach a corrected angle for the cutting start of each pairing (cutting knife and groove flank) based on the recorded measured values or the recorded positions.

Darüber hinaus zeichnet sich das automatische Einmessen dadurch aus, dass hierbei eine Winkelbeziehung der Positionen zwischen der Saugwalze und der Schneidwalze und gegebenenfalls des Getriebes sowie weiterer Bauteile überprüft wird.In addition, the automatic calibration is characterized in that an angular relationship of the positions between the suction roll and the cutting roll and, if necessary, the gearbox and other components is checked.

Aufgrund der automatischen Einstellung ist es weiterhin möglich, dass vor der Inbetriebnahme der Einrichtung die Bedienung einer Filteransetzmaschine vereinfacht wird, da manuelle Eingriffe durch Bedienpersonen hierbei nicht mehr erforderlich sind.Due to the automatic setting, it is also possible for the operation of a filter attachment machine to be simplified before the device is put into operation, since manual intervention by operators is no longer required.

Weitere Merkmale der Erfindung werden aus der Beschreibung erfindungsgemäßer Ausführungsformen zusammen mit den Ansprüchen und den beigefügten Zeichnungen ersichtlich. Erfindungsgemäße Ausführungsformen können einzelne Merkmale oder eine Kombination mehrerer Merkmale erfüllen.Further features of the invention will become apparent from the description of embodiments according to the invention together with the claims and the accompanying drawings. Embodiments according to the invention can fulfill individual features or a combination of several features.

Die Erfindung wird nachstehend ohne Beschränkung des allgemeinen Erfindungsgedankens anhand von Ausführungsbeispielen unter Bezugnahme auf die Zeichnungen beschrieben, wobei bezüglich aller im Text nicht näher erläuterten erfindungsgemäßen Einzelheiten ausdrücklich auf die Zeichnungen verwiesen wird. Es zeigen:

Fig. 1
schematisch eine Ausführungsform einer Belageinrichtung einer Filteransetzmaschine in einer schematischen Seitenansicht;
Fig. 2
schematisch eine vergrößerte Darstellung der Belagschneideinrichtung aus Fig. 1.
The invention is described below without restricting the general inventive concept on the basis of exemplary embodiments with reference to the drawings, with express reference being made to the drawings with regard to all inventive details not explained in more detail in the text. Show it:
Fig. 1
schematically an embodiment of a covering device of a filter attachment machine in a schematic side view;
Fig. 2
schematically an enlarged representation of the lining cutting device Fig. 1 .

In den folgenden Figuren sind jeweils gleiche oder gleichartige Elemente bzw. entsprechende Teile mit denselben Bezugsziffern versehen, so dass von einer entsprechenden erneuten Vorstellung abgesehen wird.In the following figures, identical or similar elements or corresponding parts are provided with the same reference numerals, so that a corresponding renewed presentation is dispensed with.

Fig. 1 zeigt eine schematische Seitenansicht einer Vorrichtung 1 zum Zuführen eines Belagpapierstreifens 2 in einer schematisch bezeichneten Filteransetzmaschine F. Eine Filteransetzmaschine der HAUNI Maschinenbau AG, Hamburg, ist unter der Bezeichnung MAX bekannt. Die Vorrichtung 1 wird im Folgenden anhand des Weges des Belagpapierstreifens 2 beschrieben. Fig. 1 shows a schematic side view of a device 1 for feeding a tipping paper strip 2 in a schematically designated filter attachment machine F. A filter attachment machine from HAUNI Maschinenbau AG, Hamburg, is known under the name MAX. The device 1 is described below with reference to the path of the covering paper strip 2.

Der Belagpapierstreifen 2 wird von einer gemäß der eingezeichneten Pfeilrichtung um eine Achse 5 rotierenden Vorratsrolle 4 mittels eines Abzugswalzenpaares 6 und 8 abgezogen. Eine der beiden Abzugswalzen, hier die Abzugswalze 6, wird dabei über einen Zahnriemen 7 von einem Antrieb 11 angetrieben.The tipping paper strip 2 is drawn off by means of a pair of draw-off rollers 6 and 8 from a supply roll 4 rotating about an axis 5 in the direction of the arrow. One of the two take-off rollers, here the take-off roller 6, is driven by a drive 11 via a toothed belt 7.

Bevor der Belagpapierstreifen 2 zu den Abzugswalzen 6 und 8 gelangt, wird er über eine Umlenkwalze 12 zu einem Brecher 14 gefördert. Der Brecher 14 bricht das Papier des Belagpapierstreifens 2, so dass es später leichter um zusammengestellte Filter-Zigaretten-Gruppen herumgewickelt werden kann.Before the covering paper strip 2 arrives at the take-off rollers 6 and 8, it is conveyed to a crusher 14 via a deflection roller 12. The crusher 14 breaks the paper of the tipping paper strip 2 so that it can later be more easily wrapped around assembled filter-cigarette groups.

Stromab der Abzugswalzen 6 und 8 ist eine Beleimeinrichtung 22 zum Auftragen von Leimbildern auf den Belagpapierstreifen 2 vorgesehen. Die Beleimeinrichtung 22 weist eine Leimdüse 24 auf. Mit Hilfe der Leimdüse 24 werden Leimbilder auf den Belagpapierstreifen 2 aufgetragen.Downstream of the take-off rollers 6 and 8, a gluing device 22 for applying glue patterns to the covering paper strip 2 is provided. The gluing device 22 has a glue nozzle 24. With the aid of the glue nozzle 24, glue patterns are applied to the covering paper strip 2.

Stromab der Beleimeinrichtung 22 gelangt der Belagpapierstreifen 2 über Umlenkwalzen 26, 28 und 29 zu einer Belagschneideinrichtung 30 zum periodischen Abtrennen von Belagpapierabschnitten von dem Belagpapierstreifen 2. Die Belagschneideinrichtung 30 ist in einer festen Weglänge in Bewegungsrichtung 20 des Belagpapierstreifens 2 hinter der Leimdüse 24 angeordnet. Bei immer gleicher Länge des Belagpapierstreifens 2 zwischen der Leimdüse 24 und der Belagschneideinrichtung 30 wird während des Schnitts durch eine Ansteuerung der Leimdüse 24 das erzeugte Leimbild zur Lage des Schnittes ausgerichtet.Downstream of the gluing device 22, the covering paper strip 2 passes via deflection rollers 26, 28 and 29 to a covering cutting device 30 for periodically separating covering paper sections from the covering paper strip 2. The covering cutting device 30 is a fixed path length in the direction of movement 20 of the covering paper strip 2 behind the glue nozzle 24 arranged. If the length of the covering paper strip 2 between the glue nozzle 24 and the covering cutting device 30 is always the same, the glue pattern produced is aligned with the position of the cut during the cut by activating the glue nozzle 24.

Zwischen den Umlenkwalzen 26 und 28 ist ein mit dem Belagpapierstreifen 2 in Kontakt stehender Oszillator 44 angeordnet und mit den Walzen 32 und 36 synchronisiert, um den Belagpapierstreifen 2 nach jedem Schnitt durch eines der Schneidmesser 34 leicht entgegen der Bewegungsrichtung 20 relativ zur Walzenoberfläche zurückzuhalten, so dass ein Abstand zwischen den einzelnen geschnittenen Abschnitten bzw. Belagpapierblättchen 39 des Belagpapierstreifens 2 entsteht. Der Oszillator 44 wandelt somit die gleichförmige Zufuhr des Belagpapierstreifens 2 zur Beleimeinrichtung 22 in eine ungleichförmige Zufuhr zur Belagschneideinrichtung 30 um.Between the deflection rollers 26 and 28, an oscillator 44 in contact with the covering paper strip 2 is arranged and synchronized with the rollers 32 and 36 in order to hold the covering paper strip 2 back slightly against the direction of movement 20 relative to the roller surface after each cut by one of the cutting knives 34, see above that a distance is created between the individual cut sections or covering paper sheets 39 of the covering paper strip 2. The oscillator 44 thus converts the uniform feed of the tipping paper strip 2 to the gluing device 22 into a non-uniform feed to the covering cutting device 30.

Die Belagschneideinrichtung 30 weist eine Schneidwalze 32 mit an ihrem Umfang angeordneten, gegenüber der Radialen leicht angewinkelten Messern 34, und eine gegenläufig rotierende, den Belagpapierstreifen 2 aufnehmende als Belagpapierwalze ausgebildete Saugwalze 36 auf.The lining cutting device 30 has a cutting roller 32 with knives 34 arranged on its circumference and slightly angled with respect to the radial, and a suction roller 36 which rotates in opposite directions and which receives the lining paper strip 2 and is designed as a lining paper roller.

Die Saugwalze 36 weist nutartige Ausnehmungen 38 bzw. Nuten 38 auf, in die die Schneidmesser 34 aufgrund des Abstandes der Walzen 32 und 36 zueinander unter Rotation der beiden Walzen 32 und 36 eintauchen, um den auf dem Umfang der Saugwalze 36 sitzenden Belagpapierstreifen 2 abzutrennen. Unterhalb der auf dem Umfang der Saugwalze 36 vorgesehenen Auflageflächen 40 weist die Saugwalze 36 mit einer Saugvorrichtung in Verbindung stehende Saugbohrungen 42 zum Halten des Belagpapierstreifens 2 und der abgetrennten Belagpapierblättchen 39 auf der Saugwalze 36 auf.The suction roller 36 has groove-like recesses 38 or grooves 38 into which the cutting knives 34 dip due to the spacing of the rollers 32 and 36 from one another while the two rollers 32 and 36 rotate, in order to separate the tipping paper strip 2 sitting on the circumference of the suction roller 36. Below the support surfaces 40 provided on the circumference of the suction roll 36, the suction roll 36 has suction bores 42 connected to a suction device for holding the covering paper strip 2 and the separated covering paper sheets 39 on the suction roll 36.

Die Fig. 2 zeigt schematisch in einer ausschnittsweise vergrößerten Darstellung die Belagschneideinrichtung 30. Der Belagpapierstreifen 2 wird zur Saugwalze 36 gefördert. Die Umfangsfläche der Saugwalze 36 ist in üblicher Weise mit Saugluft beaufschlagt, welche über Saugluftbohrungen 42 und 43 zugeführt wird und den Belagpapierstreifen 2 an der Oberfläche der Saugwalze 36 festhält und führt. Die Saugwalze 36 weist in ihrer Umfangsfläche zur Drehachse achsparallele Nuten bzw. Ausnehmungen 38 auf, deren in Laufrichtung vordere Nutflanke 47 als Schneidkante für den die Belagpapierblättchen 39 von dem Belagpapierstreifen 2 abtrennenden Trennschnitt bzw. Scherenschnitt vorgesehen ist.The Fig. 2 shows schematically the covering cutting device 30 in an enlarged detail. The covering paper strip 2 is conveyed to the suction roller 36. The peripheral surface of the suction roll 36 is in Usually subjected to suction air, which is supplied via suction air bores 42 and 43 and holds and guides the covering paper strip 2 on the surface of the suction roller 36. The suction roller 36 has in its circumferential surface axially parallel to the axis of rotation grooves or recesses 38, the front groove flank 47 of which in the running direction is provided as a cutting edge for the separating cut or scissor cut separating the covering paper sheets 39 from the covering paper strip 2.

Zum Antrieb der als Saugwalze ausgebildeten Saugwalze 36 ist ein geschwindigkeitsgeregelter Servomotor 56 vorgesehen, so dass die Saugwalze 36 direkt vom Servomotor 56 angetrieben wird. Die mit der Saugwalze 36 zusammenwirkende Schneidwalze 32 wird mittels eines separaten momentengeregelten Servomotor 52 einzeln angetrieben. In einer anderen, alternativen Ausgestaltung ist vorgesehen, dass die Saugwalze 36 mittels eines separaten lagegeregelten Servomotor 56 einzeln angetrieben wird.A speed-regulated servo motor 56 is provided to drive the suction roll 36, which is designed as a suction roll, so that the suction roll 36 is driven directly by the servo motor 56. The cutting roller 32 cooperating with the suction roller 36 is driven individually by means of a separate torque-controlled servomotor 52. In another, alternative embodiment, it is provided that the suction roller 36 is individually driven by means of a separate position-regulated servomotor 56.

Die als Schneidwalze ausgebildete Schneidwalze 32 trägt an ihrem Umfang quer zur Umlaufrichtung verlaufende Schneidmesser 34, die beim Umlauf nacheinander in die Nuten 38 der Saugwalze 36 eintauchen. Die Schneidkanten der Schneidmesser 34 sind z.B. auf einer Kegelmantelfläche fluchtend bzw. vorzugsweise raumschief zur Achse der Schneidwalze 32 ausgerichtet, wobei der Schnitt mit dem Eintauchen der Schneidkante in die entsprechende Nut bzw. Ausnehmung 38 der Saugwalze 36 beginnt unter Ausführung eines Scherenschnitts und nach dem Eintauchen der Schneidkante mit der Durchtrennung des Belagpapierstreifens endet.The cutting roller 32, designed as a cutting roller, carries on its circumference cutting blades 34 running transversely to the direction of rotation, which dip one after the other into the grooves 38 of the suction roller 36 as they rotate. The cutting edges of the cutting knives 34 are e.g. on a conical surface in alignment or preferably at an angle to the axis of the cutting roller 32, the cut beginning with the dipping of the cutting edge into the corresponding groove or recess 38 of the suction roller 36 with a scissor cut and after the cutting edge has dipped in with the severing of the covering paper strip ends.

Die Saugwalze 36 verfügt über in Umfangsrichtung der Saugwalze 36 angeordnete Auflagekörper 50, die auf der Außenseite über entsprechende Auflageflächen 40 für die Belagpapierblättchen 39 bzw. den Belagpapierstreifen 2 verfügen. Zwischen den Auflagekörpern 50 sind als Unterbrechung die Ausnehmungen 38 ausgebildet.The suction roller 36 has support bodies 50 which are arranged in the circumferential direction of the suction roller 36 and which have corresponding support surfaces 40 on the outside for the covering paper sheets 39 or the covering paper strips 2. The recesses 38 are formed as an interruption between the support bodies 50.

Für die Ausführung des Scherenschnitts zum Schneiden des Belagpapierstreifens 2 taucht ein Schneidmesser 34 in die zugehörige als Nut ausgebildete Ausnehmung 38 der Saugwalze 36 ein, ohne die als Schneidkante wirkende Nutflanke 47 zu berühren. Anschließend beginnt der Scherenschnitt mit der Berührung der Schneidkante des Schneidmessers 34 mit der Schneidkante der Nutflanke 47, wobei bei gegenläufiger Drehung der Schneidwalze 32 und der Saugwalze 36 der Berührungspunkt zwischen der Schneidkante der Nutflanke 47 mit dem Schneidmesser 34 an der Schneidkante des Schneidmessers 34 entlang zum anderen Schneidkantenende hin wandert. Bei Verwendung eines Schneidmessers 34 mit einer geraden Schneidkante wird hierbei ein gerader Schnitt im Zusammenwirken mit einer geraden Nutflanke 47 ausgeführt. Anschließend löst sich das Schneidmesser 34 von der die zweite Schneidkante bildenden Nutflanke 47 der Saugwalze 36 und taucht wieder aus der Ausnehmung 38 heraus. Hierdurch wird ein ziehender Trennschnitt bzw. ein Scherenschnitt zur Abtrennung des Belagpapierblättchens 39 vom Belagpapierstreifen 2 durchgeführt.For performing the scissor cut to cut the covering paper strip 2, a cutting knife 34 dips into the associated recess 38 of the suction roller 36, which is designed as a groove, without touching the groove flank 47 acting as a cutting edge. Then the scissors cut begins with the contact of the cutting edge of the cutting knife 34 with the cutting edge of the groove flank 47, whereby when the cutting roller 32 and the suction roller 36 rotate in opposite directions, the point of contact between the cutting edge of the groove flank 47 and the cutting knife 34 along the cutting edge of the cutting knife 34 to the other end of the cutting edge migrates. When using a cutting knife 34 with a straight cutting edge, a straight cut is made in cooperation with a straight groove flank 47. The cutting knife 34 then detaches itself from the groove flank 47 of the suction roller 36, which forms the second cutting edge, and emerges again from the recess 38. As a result, a pulling severing cut or a scissors cut to sever the covering paper sheet 39 from the covering paper strip 2 is carried out.

Dadurch, dass die Saugwalze 36 mittels des Servomotors 56 und gleichzeitig die Schneidwalze 32 mittels des Servomotors 52 jeweils einzeln angetrieben werden, ist es möglich, dass die Antriebsmomente der Saugwalze 36 und der Schneidwalze 32 individuell geregelt werden, so dass durch die jeweilige Regelung der Antriebsmomente der Saugwalze 36 und der Schneidwalze 32 der gegenseitige Andruck der zusammenwirkenden Schneidelemente (Messer 34 und Nutflanke 47) variiert werden, insbesondere derart, dass die zum Scherenschnitt notwendige Überdrückung des Schneidmessers 34 ein Maximum bzw. einen Sollwert nicht übersteigt. Durch die Begrenzung des Antriebsmoments bzw. des Drehmoments und deren Einstellung wird ein Überdrücken der Schneidmesser 34 bei der Durchführung des Scherenschnitts verringert, wodurch auch der Verschleiß der Schneidmesser 34 herabgesetzt wird.Because the suction roller 36 is driven individually by means of the servo motor 56 and the cutting roller 32 by means of the servo motor 52 at the same time, it is possible for the drive torques of the suction roller 36 and the cutting roller 32 to be regulated individually so that the respective regulation of the drive torques the suction roller 36 and the cutting roller 32, the mutual pressure of the interacting cutting elements (knife 34 and groove flank 47) can be varied, in particular such that the overpressure of the cutting knife 34 required for the scissor cut does not exceed a maximum or a target value. By limiting the drive torque or the torque and setting it, overpressure of the cutting blades 34 when performing the scissor cut is reduced, whereby the wear of the cutting blades 34 is also reduced.

Außerdem ist es durch die Regelung der Antriebsmomente des Servomotors 56 der Saugwalze 36 und/oder die Regelung der Antriebsmomente des Servomotors 52 der Schneidwalze 32 möglich, dass auch die Ränder von breiteren Belagpapierstreifen 2 exakt geschnitten werden.In addition, by regulating the drive torques of the servo motor 56 of the suction roller 36 and / or regulating the drive torques of the servo motor 52 of the cutting roller 32, the edges be cut exactly from wider covering paper strips 2.

Darüber hinaus ist es im Rahmen der Erfindung denkbar, dass Schneidmesser 34 mit einer geraden Schnittkontur der Schneidkante eingesetzt werden. Ebenso ist es im Rahmen der Erfindung möglich, dass die Schneidkanten der Schneidmesser 34 eine von einer Gerade abweichende, beispielsweise eine bogenförmig ausgebildete Schnittkontur, aufweisen. Hierbei kann die Schnittkontur des Schneidmessers beispielsweise konkav oder konvex ausgebildet sein, wobei Konturen der mit den Messern 34 zusammenwirkenden Nutflanken 47 funktionskomplementär ausgebildet sind.In addition, it is conceivable within the scope of the invention that cutting blades 34 with a straight cutting contour of the cutting edge are used. It is also possible within the scope of the invention that the cutting edges of the cutting knives 34 have a cutting contour that deviates from a straight line, for example an arcuate cut contour. In this case, the cutting contour of the cutting knife can be designed, for example, concave or convex, with the contours of the groove flanks 47 interacting with the knives 34 being designed to be functionally complementary.

BezuqszeichenlisteReference list

11
Vorrichtungcontraption
22
BelagpapierstreifenCovering paper strips
44th
VorratsrolleSupply roll
55
Achseaxis
66
AbzugswalzeTake-off roller
77th
ZahnriemenTiming belt
88th
AbzugswalzenpaarPair of take-off rollers
1111
Antriebdrive
1212th
UmlenkwalzeDeflection roller
1414th
BrecherCrusher
2020th
BewegungsrichtungDirection of movement
2222nd
BeleimeinrichtungGluing device
2424
LeimdüseGlue nozzle
2626th
UmlenkwalzeDeflection roller
2828
UmlenkwalzeDeflection roller
2929
UmlenkwalzeDeflection roller
3030th
BelagschneideinrichtungBase cutting device
3232
SchneidwalzeCutting roller
3434
SchneidmesserCutting knife
3636
SaugwalzeSuction roll
3838
AusnehmungRecess
3939
BelagpapierblättchenCovering paper sheets
4040
AuflageflächeSupport surface
4242
SaugluftbohrungSuction air hole
4343
SaugluftbohrungSuction air hole
4444
Oszillatoroscillator
4747
NutflankeGroove flank
5050
AuflagekörperSupport body
5252
ServomotorServo motor
5656
ServomotorServo motor
FF.
FilteransetzmaschineFilter attachment machine

Claims (15)

  1. A device (30) for cutting a material web strip (2) for the tobacco processing industry, in particular a tipping paper strip (2), into material web sections (39) with a cutting roller (32) and a suction roller (36) interacting with the cutting roller (32), wherein the material web strip (2) is or will be guided between the cutting roller (32) and the suction roller (36), and wherein the cutting roller (32) has cutting blades (34) in the circumferential direction, wherein the suction roller (36) has grooves (38) for receiving cutting blades (34) of the cutting roller (32) in the circumferential direction, wherein during the simultaneous rotation of the cutting roller (32) and the suction roller (36) in opposite directions, the cutting blades (34) of the cutting roller (32) are each inserted into a groove (38) of the suction roller (36) and can be or are brought into contact with a groove flank (47) of the groove (38), forming a paper cut, wherein exclusively one suction roller driver (56), which preferably directly drives the suction roller (36) and is position-controlled or speed-controlled, is provided for the rotation of the suction roller (36), and wherein exclusively one torque-controlled cutting roller drive (52), which preferably drives the cutting roller (32), is provided for the rotation of the cutting roller (32).
  2. The device (30) according to Claim 1, characterized in that the drive torque of the cutting roller drive (52) is or can be controlled as a function of the position of the cutting roller drive (52) during the execution of the paper cut.
  3. The device (30) according to Claim 2, characterized in that the speed or the positions of the suction roller drive (56) and/or the drive torque of the cutting roller drive (52) is/are or can be controlled in such a manner that an overpressing of a cutting blade (34) during formation of the paper cut does not exceed a maximum nominal value and/or does not fall below a minimum nominal value.
  4. The device (30) according to Claim 3, characterized in that in the event of the cutting blade (34) being overpressed and in the event of the maximum nominal value for the overpressing of the cutting blade (34) being reached, the drive torque of the cutting roller (32) is or can be reduced.
  5. The device (30) according to any one of Claims 1 to 4, characterized in that the suction roller drive (56) is configured as a servomotor (56) and/or the cutting roller drive (52) is configured as a servomotor (52).
  6. The device (30) according to any one of Claims 1 to 5, characterized in that the cutting edges of the cutting blades (34) have a cutting contour which is not straight.
  7. The device (30) according to any one of Claims 1 to 6, characterized in that, in the non-production mode, the cutting roller drive (52) and the suction roller drive (56) are connected to one another using a gear, more preferably a gear train.
  8. The device (30) according to any one of Claims 1 to 7, characterized in that the inertia torque of the suction roller (36) is greater than the inertia torque of the cutting roller (32), preferably by at least a factor of 5.
  9. A machine for the tobacco processing industry, in particular a filter attachment machine, having a device (30) for cutting a material web strip (2) for the tobacco processing industry, in particular a tipping paper strip (2), into material web sections (39) according to any one of Claims 1 to 8.
  10. A method for cutting a material web strip (2) for the tobacco processing industry, in particular a tipping paper strip (2), wherein the material web strip (2) is conveyed to a device (30) for cutting the material web strip (2) and is cut by means of the device (30) into material web strip sections, wherein the device (30) for cutting the material web strip (2) has a cutting roller (32) and a suction roller (36) interacting with the cutting roller (32), wherein the material web strip (2) is guided between the cutting roller (32) and the suction roller (36), and wherein the cutting roller (32) has cutting blades (34) in the circumferential direction, wherein the suction roller (36) has grooves (38) for receiving cutting blades (34) of the cutting roller (32) in the circumferential direction, wherein during the simultaneous rotation of the cutting roller (32) and the suction roller (36) in opposite directions, the cutting blades (34) of the cutting roller (32) are each inserted into a groove (38) of the suction roller (36) and are brought into contact with a groove flank (47) of the groove (38), forming a paper cut, wherein the suction roller (36) is made to rotate by means of exclusively one suction roller drive (56), which preferably drives the suction roller (36) directly and is position-controlled or speed-controlled, and wherein the cutting roller (32) is made to rotate by means of exclusively one torque-controlled cutting roller drive (52), which preferably drives the cutting roller (32) directly.
  11. The method according to Claim 10, characterized in that the drive torque of the cutting roller drive (52) is controlled as a function of the position of the cutting roller (32) during the execution of the paper cut.
  12. The method according to Claim 11, characterized in that the speed or the positions of the suction roller drive (56) and/or the drive torque of the cutting roller drive (52) is/are controlled in such a manner that an overpressing of a cutting blade (34) does not exceed a maximum nominal value during formation of the paper cut and/or does not fall below a minimum nominal value or if the cutting blade (34) is overpressed and if the maximum nominal value for overpressing the cutting blade (34) is reached, the drive torque of the cutting roller (32) is reduced.
  13. The method according to any one of Claims 10 to 12, characterized in that the suction roller drive (56) is configured as a servomotor (56) and/or the cutting roller drive (52) is configured as a servomotor (52).
  14. The method according to any one of Claims 10 to 13, characterized in that, prior to commissioning of the device (30) for cutting the material web strip (2), at least one position or multiple, preferably all of the, positions of the suction roller (36) and at least one position or multiple, preferably all of the, positions of the cutting roller (32) are captured on introducing a cutting blade (34) or on introducing the cutting blades (34) into the respective groove (38) interacting with the cutting blade (34).
  15. The method according to Claim 14, characterized in that the capturing of the position or positions of the suction roller (36) and capturing of the position or positions of the cutting roller (32) are performed automatically.
EP17179266.6A 2016-07-12 2017-07-03 Cutting of a tipping paper strip for the tobacco processing industry Active EP3269265B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17179266T PL3269265T3 (en) 2016-07-12 2017-07-03 Cutting of a tipping paper strip for the tobacco processing industry

Applications Claiming Priority (1)

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DE102016112724.8A DE102016112724B4 (en) 2016-07-12 2016-07-12 Cutting a tipping paper strip of the tobacco processing industry

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EP3269265A1 EP3269265A1 (en) 2018-01-17
EP3269265B1 true EP3269265B1 (en) 2020-09-30

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CN (1) CN107599033B (en)
DE (1) DE102016112724B4 (en)
PL (1) PL3269265T3 (en)

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Publication number Publication date
CN107599033A (en) 2018-01-19
CN107599033B (en) 2021-03-23
DE102016112724B4 (en) 2018-02-08
DE102016112724A1 (en) 2018-01-18
PL3269265T3 (en) 2021-03-08
EP3269265A1 (en) 2018-01-17

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