EP2090535B1 - Vorrichtung zum Querschneiden von Bahnmaterialen - Google Patents

Vorrichtung zum Querschneiden von Bahnmaterialen Download PDF

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Publication number
EP2090535B1
EP2090535B1 EP09152874A EP09152874A EP2090535B1 EP 2090535 B1 EP2090535 B1 EP 2090535B1 EP 09152874 A EP09152874 A EP 09152874A EP 09152874 A EP09152874 A EP 09152874A EP 2090535 B1 EP2090535 B1 EP 2090535B1
Authority
EP
European Patent Office
Prior art keywords
blade
supporting member
cam
shaft
counter
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
EP09152874A
Other languages
English (en)
French (fr)
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EP2090535A1 (de
Inventor
Claudio Banfo
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.)
Tocchio Srl
Original Assignee
Tocchio Srl
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Publication date
Application filed by Tocchio Srl filed Critical Tocchio Srl
Publication of EP2090535A1 publication Critical patent/EP2090535A1/de
Application granted granted Critical
Publication of EP2090535B1 publication Critical patent/EP2090535B1/de
Active legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators

Definitions

  • the present invention relates to a device for cross-cutting web materials.
  • the device according to the invention is particularly advantageously used as a cutter for treated paper materials and specifically decorative paper impregnated and/or coated with polymeric resins, used to manufacture floor panelling or surfacing of furniture, walls, etc. It is, however, understood that the device according to the invention can also be used in other applications and/or to cut other materials.
  • the webs of impregnated or coated decorative papers are cut into sheets by means of rotary cutters having two synchronized rotating rollers, arranged one above the other and provided with respective mutually cooperating blades.
  • rotary cutters having two synchronized rotating rollers, arranged one above the other and provided with respective mutually cooperating blades.
  • EP0622320-A1 discloses a cutter device having a rotating blade cooperating with a counter-blade that is cyclically raised towards the blade by a lever; the counter-blade translates vertically, perpendicular to the paper web, and is operated by an oscillating lever.
  • An object of the present invention is to provide a cutting device that overcomes the drawbacks of the prior art described above; in particular, an object of the invention is to provide a device for cutting web materials that is simple to produce and use and completely efficient and reliable even at high machining speeds.
  • the present invention relates to a cutting device such as defined in its essential terms in claim 1 and, in its secondary features, in the dependent claims.
  • the device according to the invention is simple and relatively economical to produce and use, and is at the same time completely efficient and reliable even at high machining speeds. Moreover, with respect to the solutions known in the prior art, with the device according to the invention the distance between the blade and counter-blade can easily be adjusted, a significant reduction can be achieved in the turbulence in the cutting area (due to the fact that the stroke of the counter-blade can be very short), the speed of rotation of the blade and operation of the counter-blade can be adjusted and controlled separately.
  • FIG. 1 designated as a whole by number 1 is a device for cross-cutting a web material 2, in particular a paper material such as decorative paper impregnated and/or coated with polymeric resins, to be used for instance to manufacture floor panelling or surfacing of furniture, walls, etc.
  • a paper material such as decorative paper impregnated and/or coated with polymeric resins
  • the material 2 is fed to the device 1 along a feeding direction D by means of a feed system 3 that is of a known kind, for example of the type having rollers 4 (which may or may not be motor-powered) between which the material 2 passes.
  • the material 2 enters the device 1 through an entrance 5; the device cuts the material 2 crosswise with respect to the feeding direction D to form a plurality of sheets 6 that leave the device 1 through an exit 7 to be stacked in a specific stacking station, of a type that is known and not illustrated, arranged downstream of the device 1.
  • the device 1 comprises a blade 10 carried by a roller 11 that rotates about an axis R of rotation, a counter-blade 12 carried by a movable supporting member 13, and an actuator system 14 that brings the blade 10 and the counter-blade 12 so as to cyclically cooperate with one another.
  • the roller 11 is supported rotatingly about the axis R by a frame 15 of the device 1; the roller 11 is motor-powered, being driven by a motor 16; in particular, opposite axial ends of the roller 11 are provided respectively with a driving shaft 17 and a pin 18 inserted in respective bearings 19 carried by the frame 15.
  • the shaft 17 is connected to the motor 16 by means of a reduction gear 20 and a transmission 21, for example comprising a toothed belt 22 mounted on pulleys 23.
  • the motor 16 for example a torque motor, acts instead directly on the shaft 17.
  • the roller 11 has a longitudinal slot 28 that houses the blade 10; the blade 10 extends longitudinally along the roller 11, substantially parallel to the axis R or slightly curved, for example helically wound.
  • the member 13 faces the roller 11 and extends longitudinally substantially parallel to the roller 11; the roller 11 and the member 13 are arranged on opposite sides of the material 2 crosswise with respect to the material 2 and to the feeding direction D.
  • the member 13 is longitudinally elongated and can be variously shaped, for instance in the form of a roller-shaped member, a box-shaped member, a substantially prismatically-shaped member, etc.
  • the member 13 is pivotally attached to the frame 15 by means of a pair of pins 29 having longitudinal extremities supported by respective bearings 30 carried by the frame 15.
  • the member 13 is pivoted with respect to an axis A of oscillation defined by the pins 29 and substantially parallel to the axis R of rotation of the roller 11; the member 13 has a pair of extremities 31, 32 arranged on opposite sides of the axis A.
  • the counter-blade 12 consists of a longitudinal blade shaped so as to cooperate with the blade 10 to cut the material 2 along a line substantially orthogonal to the feeding direction D.
  • the counter-blade 12 projects in a cantilevered fashion from the extremity 31 of the member 13 towards the roller 11.
  • the actuator system 14 comprises a rotating shaft 35, substantially parallel to the axis R and to the axis A and provided with at least one cam 36 that acts on the member 13 to move the member 13 and selectively bring the counter-blade 12 so as to cooperate with the blade 10.
  • the cam 36 is integrally attached to the shaft 35 and rotates integrally with the shaft 35 cooperating up against a contrast member 37, for example substantially cylindrical, carried by the extremity 32 of the member 13 and arranged substantially parallel to the axis A.
  • the shaft 35 may also be provided with several cams 36 arranged along the shaft 35 and all cooperating with one single elongated contrast member 37 or with respective contrast members 37 arranged at a distance from one another.
  • the cam 36 is provided with a centred portion 38, having a smaller curvature radius, and an eccentric portion 39 having a larger curvature radius.
  • the shaft 35 is driven by a motor 40, preferably a brushless motor, that acts directly on the shaft 35; the shaft 35 is thus connected directly to a drive shaft 41 of the motor 40, with no reducers.
  • a motor 40 preferably a brushless motor
  • the shaft 35 and the roller 11 are driven respectively by the motor 40 and by the motor 16, which are independent of one another and both controlled by an electronic control unit 42 which synchronizes the operation of the two motors 16, 40 and receives signals from sensors, encoders or transducers (that are known and not illustrated for the sake of simplicity) connected to the roller 11, to the shaft 35 and/or to the member 13.
  • the shaft 35 is rotatingly supported, by means of bearings 43, by the frame 15, which also carries the motor 40.
  • the actuator system 14 also comprises one or more tensioning members 44 acting on the extremity 32 of the member 13 to maintain the member 13 in a predetermined position; in the figures only a single tensioning member 44 is illustrated, but it is understood that there may be two or more tensioning members 44 arranged at intervals along the member 13 parallel to the axis A and to the shaft 35.
  • the tensioning member 44 is an elastic member, for example a pneumatic spring comprising one or more set pressure bellows-type pneumatic pistons.
  • the cam 36 and the tensioning member 44 are arranged on opposite sides of the member 13 and specifically of the contrast member 37 and thus exert opposing forces on the member 13.
  • the member 13 oscillates between a rest position, shown in figure 2 , in which the counter-blade 12 is detached from the material 2 passing through the device 1, and a cutting position, shown in figure 3 , in which the counter-blade 12 is in contact with the material 2 and cooperates with the blade 10 to cut the material 2.
  • the tensioning member 44 maintains the member 13 in the cutting position and the cam 36 acts on the member 13 against the action of the tensioning member 44, in particular compressing the tensioning member 44, in order to move the member 13 into the rest position.
  • the cam rotates by 180° to move the member 13 alternatively into the cutting position and into the rest position.
  • the device 1 also comprises a system 45 for adjusting the initial position of the member 13 and thus of the counter-blade 12 with respect to the frame 15 and thus to the blade 10.
  • the system 45 is substantially of a type known and is therefore not described or illustrated in detail for the sake of simplicity.
  • the operation of the device 1 for cutting the material 2 into sheets is as follows.
  • the strip of web material 2 is fed to the device 1 by means of the feed system 3.
  • the member 13 is in the rest position, since the cam 36 contacts the contrast member 37 with the eccentric portion 39 and pushes the member 13 against the action exerted by the tensioning member 44.
  • the control unit 42 sends a command to make the shaft 35 rotate by 180°, which brings the cam 36 into contact with the contrast member 37 with the centred portion 38.
  • the tensioning member 44 is no longer contrasted by the cam 36 and thus moves the member 13 into the cutting position.
  • the roller 11 rotates in synchronization with the movement of the member 13.
  • the control unit 42 controls the motors 16 and 40 synchronizing the rotation of the roller 11 provided with the blade 10 with the rotation of the shaft 35 and thus the alternating oscillatory motion of the member 13 with the counter-blade 12.
  • the blade 10 and the counter-blade 12 are thus cyclically brought so as to cooperate with one another and cut the sheets 6.
  • the shaft 35 always turns in the same direction driven by the motor 40, while the member 13 oscillates alternately about the axis A in opposite directions.
  • the shaft 35 and the roller 11 rotate in the same direction and thus the blade 10 and the counter-blade 12 are brought into contact with the material 2 with a simultaneous rotary movement.

Landscapes

  • Nonmetal Cutting Devices (AREA)
  • Control Of Cutting Processes (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (8)

  1. Vorrichtung (1) zum Querschneiden von Bahnmaterialien, mit einer Schneidklinge (10), die von einer Walze (11) getragen ist, welche um eine Drehachse (R) rotiert, einer Gegen-Schneidklinge (12), die durch ein bewegliches Stützteil (13) getragen ist, und einem Betätigungssystem (14), um die Schneidklinge und die Gegen-Schneidklinge zu veranlassen, zyklisch miteinander zusammenzuarbeiten, dadurch gekennzeichnet, dass das Betätigungssystem (14) eine Drehwelle (35) aufweist, die mit zumindest einer Nocke (36) ausgestattet ist, welche gegen ein von einem Endabschnitt (32) des Stützteils (13) getragenes Gegenelement (37) arbeitet, um das Stützteil (13) zu bewegen und die Gegen-Schneidklinge (12) selektiv dazu zu bringen, mit der Schneidklinge (10) zusammenzuarbeiten; wobei das Stützteil (13) bezüglich einer Schwenkachse (A) verschwenkbar ist und zwischen einer Ruheposition und einer Schneidposition um die Schwenkachse (A) in entgegengesetzten Richtungen oszilliert.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die die Nocke (36) tragende Welle (35) durch einen direkt auf die Welle (35) einwirkenden Motor (40) angetrieben ist.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Welle (35) in einer vorgegebenen Richtung rotiert, und die Nocke (36) die Drehbewegung der Welle (35) in eine hin- und hergehende Bewegung des Teils (13) umwandelt, welches alternierend um die Achse (A) in entgegengesetzten Richtungen oszilliert.
  4. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Nocke (36) jeweils um 180° rotiert, um das Stützteil (13) abwechselnd in die Schneidposition und in die Ruheposition zu bringen.
  5. Vorrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch zumindest ein Vorspannteil (44), welches auf das Stützteil (13) einwirkt, um dieses in einer Schneidposition zu halten, wobei die Nocke (36) auf das Stützteil (13) gegen die Wirkung des Vorspannteils (44) derart einwirkt, dass es in die Ruheposition gebracht wird.
  6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass das Vorspannteil (44) ein elastisches Teil ist, und die Nocke (36) unter Komprimierung des Vorspannteils (44) arbeitet.
  7. Vorrichtung nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass das Vorspannteil (44) eine Pneumatik-Feder ist, die einen oder mehrere in Balg-Bauweise ausgeführte/n Pneumatikkolben mit eingestelltem Druck aufweist.
  8. Vorrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die mit der Nocke (36) ausgestattet Welle (35) und die die Schneidklinge (10) tragende Walze (11) jeweils durch unabhängige Motoren (40, 16) angetrieben sind, wobei beide Motoren (40, 16) durch eine Steuereinheit (42) angesteuert sind, welche den Betrieb der beiden Motoren (40, 16) synchronisiert.
EP09152874A 2008-02-15 2009-02-13 Vorrichtung zum Querschneiden von Bahnmaterialen Active EP2090535B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000245A ITMI20080245A1 (it) 2008-02-15 2008-02-15 Dispositivo di taglio trasversale di materiali in nastro

Publications (2)

Publication Number Publication Date
EP2090535A1 EP2090535A1 (de) 2009-08-19
EP2090535B1 true EP2090535B1 (de) 2011-06-01

Family

ID=40291654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09152874A Active EP2090535B1 (de) 2008-02-15 2009-02-13 Vorrichtung zum Querschneiden von Bahnmaterialen

Country Status (3)

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EP (1) EP2090535B1 (de)
AT (1) ATE511491T1 (de)
IT (1) ITMI20080245A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3275820A1 (de) * 2016-07-28 2018-01-31 Harro Höfliger Verpackungsmaschinen GmbH Vorrichtung zum schneiden einer materialbahn in teilabschnitte

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105690467B (zh) * 2014-11-28 2017-08-22 南京法宁格节能科技股份有限公司 一种生产xps异型材的牵引横切机
CN106006144A (zh) * 2016-07-13 2016-10-12 上海烟草机械有限责任公司 一种纸带切割装置及其作业方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4313452A1 (de) * 1993-04-24 1994-10-27 Bielomatik Leuze & Co Verarbeitungsvorrichtung und Verfahren zur Bearbeitung von Material zu Blattlagen
IT1286563B1 (it) * 1996-03-05 1998-07-15 Perini Fabio Spa Macchina ribobinatrice incorporante un incollatore per i rotoli completati e relativo metodo di avvolgimento
DE69906036T2 (de) * 1999-05-06 2004-01-22 Casmatic S.P.A. Folienschneideinrichtung insbesondere für eine Wickelmaschine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3275820A1 (de) * 2016-07-28 2018-01-31 Harro Höfliger Verpackungsmaschinen GmbH Vorrichtung zum schneiden einer materialbahn in teilabschnitte

Also Published As

Publication number Publication date
ITMI20080245A1 (it) 2009-08-16
EP2090535A1 (de) 2009-08-19
ATE511491T1 (de) 2011-06-15

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