EP1429897A1 - Dispositif de decoupage longitudinal pour decouper des bandes de materiau en mouvement - Google Patents

Dispositif de decoupage longitudinal pour decouper des bandes de materiau en mouvement

Info

Publication number
EP1429897A1
EP1429897A1 EP02800004A EP02800004A EP1429897A1 EP 1429897 A1 EP1429897 A1 EP 1429897A1 EP 02800004 A EP02800004 A EP 02800004A EP 02800004 A EP02800004 A EP 02800004A EP 1429897 A1 EP1429897 A1 EP 1429897A1
Authority
EP
European Patent Office
Prior art keywords
drive shaft
circular knife
knife
cutting device
longitudinal cutting
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.)
Withdrawn
Application number
EP02800004A
Other languages
German (de)
English (en)
Inventor
Ralf Dedeken
Armin Hutzenlaub
Dietmar Kunkel
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.)
Kampf GmbH and Co Maschinenfabrik
Original Assignee
Kampf GmbH and Co Maschinenfabrik
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 Kampf GmbH and Co Maschinenfabrik filed Critical Kampf GmbH and Co Maschinenfabrik
Publication of EP1429897A1 publication Critical patent/EP1429897A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/088—Means for treating work or cutting member to facilitate cutting by cleaning or lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/24—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter
    • B26D1/245—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter coacting with another disc cutter for thin material, e.g. for sheets, strips or the like

Definitions

  • the invention relates to a longitudinal cutting device for cutting running material webs, with at least one slide which is adjustably mounted on a guide extending transversely to the web running direction and which has a holder for a freely rotatable upper knife.
  • Longitudinal cutting devices for paper, plastic film and aluminum foil webs usually contain a plurality of circular knives arranged in pairs, with one pair of circular knives each cutting the web in the longitudinal direction for division into individual webs.
  • Longitudinal cutting devices of this type are components of winding machines which produce individual, narrower winding rolls from a wide material web. In order to be able to produce different winding roll formats, the pairs of circular knives can be positioned transversely to the web running direction.
  • a generic longitudinal cutting device is known from WO 99/47317.
  • the longitudinal cutting device described herein consists of a driven upper knife and a freely rotatable lower knife.
  • circular knives are used as the upper knife and pot knives in particular as the lower knife.
  • Each pair of knives can be positioned transversely to the running direction of the web to be divided in order to set the required format width.
  • each upper knife can be adjusted in the direction of its axis of rotation against the associated lower knife, so that the two cutting edges can be aligned exactly relative to one another.
  • each upper knife can be raised to an inactive position if it is not required for slitting.
  • An electric motor serves as the rotary drive for the upper knife, with brushless DC motors in particular being used in a very compact design.
  • the Motor is located above the upper knife and drives the upper knife by means of a belt. By laying the drive motor over the circular knife, a narrower design of the longitudinal cutting device is possible.
  • the invention has for its object to improve a generic longitudinal cutting device so that the most compact design of the upper knife suspension is realized and each upper knife can be driven.
  • a drive shaft which extends over the entire width of the machine and via which the upper knife, in particular a circular knife, can be driven by means of a gear.
  • the inventive arrangement of a drive shaft over the entire width of the machine makes it possible to drive the circular knife and to reduce the suspension of the circular knife to the most essential elements. By separating the drive of the circular knife from the holder, a much narrower design of the suspension for the circular knife is made possible. According to the invention, it is now possible to realize very narrow cutting widths in a cutting and / or winding machine.
  • the continuous drive shaft also offers the advantage of a uniform drive for all circular knives in engagement. In addition, only a drive motor, which does not have to be limited in its construction, is required.
  • FIG. 1 shows the basic structure of a longitudinal cutting device with a gear transmission for driving the circular knife
  • FIG. 2 shows a section through the drive shaft and the gear transmission according to FIG. 1 in section INI
  • FIG. 3 shows the basic structure of a longitudinal cutting device with a gear transmission for driving the circular knife
  • FIG. 4 shows the basic structure of a longitudinal cutting device with a belt drive for driving the circular knife
  • FIG. 5 shows the basic structure of a longitudinal cutting device with a belt gear and an additional friction wheel for driving the circular knife
  • Figure 6 shows the basic structure of a longitudinal cutting device with a friction gear for driving the circular knife.
  • Longitudinal cutting devices for paper, plastic film and aluminum foil webs usually contain a number of knives arranged in pairs, each pair of knives severing the web for division into individual webs in the longitudinal direction.
  • Longitudinal cutting devices of this type are components of winding machines which produce individual narrower winding rolls from a wide material web.
  • the knife pairs can be positioned transversely to the web running direction.
  • the pairs of knives usually consist of an upper knife, in particular a circular knife, which is freely rotatably mounted and driven by the material web, and a driven lower knife, in particular a pot knife or a grooved shaft provided with cutting edges.
  • the longitudinal cutting device 1 is shown with a gear transmission.
  • the longitudinal cutting device 1 consists of an upper knife 2, in particular a circular knife, a holder 3 for the circular knife 2, which is attached to a single knife holder 4.
  • the single knife holder 4 is releasably attached to a carriage 5.
  • the carriage 5 is in turn on a support beam 6 by means of linear Guide rails 7 mounted linearly displaceable.
  • the drive shaft 8 for the circular knife 2 is rotatably mounted in a boom 9.
  • the boom 9 is in turn connected to the carriage 5.
  • the drive shaft 8 is circumferentially form-fitting, for transmission of a torque and is axially displaceably guided through a bushing 11, the bushing 11 being fastened in a freely rotatable manner on the carriage 5 and to which a gearwheel 14 driving the circular knife 2 is fastened.
  • the section shown in Figure 2 through the receptacle of the drive shaft 8 and through the bushing 11 and the bracket 9 serves to illustrate the drive of the circular knife 2.
  • the bushing 11 is positively but axially displaceably arranged on the drive shaft 8, the bushing 11 being rotationally fixed is connected to the outer ring of a bearing 12.
  • the inner ring of the bearing 12 is in turn fastened in the arm 9 so that the bushing 11 is rotatably mounted.
  • the gear 13 for driving the circular knife 2 is fixed.
  • the bushing 11 is axially displaceable over the longitudinal profile and / or the form-fitting elements 10 of the drive shaft 8.
  • the drive shaft 8 can be profiled, for example in the form of a square shaft, or it is equipped with form-fitting elements 10, such as slot nuts, feather keys or ball guides, as are used, for example, in linear guides.
  • form-fitting elements 10 such as slot nuts, feather keys or ball guides, as are used, for example, in linear guides.
  • a combination of profiled drive shaft 8 and provided with form-fitting elements 10 is of course also conceivable.
  • the torques are transmitted via the drive shaft 8 to the socket 11 and then to the gear 13.
  • the circular knife 2 is then driven by means of the toothed wheel 13, a toothed wheel 14 also being fastened to the circular knife 2.
  • the material web 15 runs between the circular knife 2 and the lower knife 16, which are set against one another in order to perform a scissor cut.
  • the cutting edge of the circular knife 2 is moved against the cutting edge of the lower knife 16 via guide elements 17.
  • the guide elements 17 can move the circular knife approximately 20 to 30 mm radially in the direction of the lower knife.
  • the center distance of the drive shaft 8 to the center 19 of the circular knife 2 changes.
  • the distance error moves in such small areas that this has no negative influence on the rolling of the gear pair.
  • the gear pair 13, 14 remains in mutual engagement. Damage to the gears 13, 14 is thus ruled out beforehand.
  • a protective hood 18 is additionally arranged around the circular knife 2.
  • FIG. 3 A preferred embodiment of the invention is shown in FIG. 3.
  • the basic structure of the longitudinal cutting device corresponds to the embodiment described in FIG. 1.
  • the holder 20 for the circular knife 2 is in a modified form, it also serves to receive an intermediate gear 21.
  • the intermediate gear 21 is driven via the drive shaft 8 and the gear 22 fastened thereon via a bushing 11.
  • the drive shaft 8 is rotatably mounted directly on the carriage 5 in a short arm 23.
  • the area 24 between the material web 15 and the short boom 23 is cleared by the inclusion of an intermediate gearwheel 21 in the transmission for driving the circular knife 2 and the position of the drive shaft 8.
  • this area 24 further devices for grinding or cleaning the circular knife 2 can now be introduced or permanently installed.
  • Another advantage of this preferred exemplary embodiment is that the dismantling of the circular knife 2 is also facilitated.
  • a preferred device which is arranged in the area 24, is a circular disk 25 made of felt.
  • the circular disk 25 is used to clean the circular knife 2 and can be brought up to the circular knife.
  • Gear 21 moves over the guide elements 17 in the direction of the individual knife holder 4.
  • the gears 21, 22 remain continuously engaged.
  • the guide elements 17 move the holder 20 and the circular knife 2 and the intermediate gearwheel against the lower knife 16.
  • the rotary movement of the circular knife 2 is thereby transmitted to the gearwheel 22, to the intermediate, via a torque generated on the drive shaft 8 Gear 21 and then transfer to the gear 14 on the circular knife.
  • the gearwheel 14 is fixedly connected to the circular knife 2 and rotatably mounted in the holder 20.
  • the circular knife 2 is first moved radially in the direction of the lower knife 16 and then axially in the direction of the movement of the carriage 5 against the lower knife 16 to form a shear system.
  • the driven circular knife 2 offers the advantage that a leading cut can be produced, which has a positive effect on the cutting quality of the material webs 15.
  • the circular disk 25 made of felt can now be moved towards the circular knife 2 and cleaned during the cutting.
  • idle times and set-up times are reduced.
  • the circular disk 25 can also clean a non-engaged circular disk 2.
  • a device for grinding the circular knife can also be inserted into the free area 24 or can be permanently installed.
  • a housing 26 is arranged around the circular disk 25 to protect the circular disk and to collect dirt or abrasive particles.
  • FIG. 4 shows a longitudinal cutting device 27 with a belt transmission.
  • the structure of the travel unit for the circular knife essentially corresponds to FIG. 1.
  • Linear guide rails 7 are mounted on a support beam 6 mounted in the machine frame, on which a carriage 5 can move the individual knife holder 4.
  • the individual knife holder 4 has guide elements 17 for axial positioning and a holder 3 for receiving the circular knife 2.
  • a pulley 28 is fixedly connected, which is rotatably mounted in the holder 3.
  • a lever arm 30 directed in the direction of the drive shaft 29 is pivotally attached.
  • a further rotatably mounted pulley 32 is attached.
  • the pulleys 28, 32 are connected by means of a V-belt 33.
  • an element 34 for pulling the lever arm 30 in the direction of the drive shaft 29 is arranged between the lever arm 30 and the slide 5.
  • Element 34 may be a spring as shown, but may combined elements can also be used, which have the possibility of pressing the lever arm 30 on the one hand against the drive shaft 29 and, on the other hand, pushing the lever arm 30 away from the drive shaft in order to regulate the tension on the V-belt 33.
  • a lower contact pressure on the V-belt is necessary if, for example, the carriage 5 is to be moved axially.
  • the carriage 5 is axially displaced while the drive shaft 29 is rotating.
  • the V-belt 33 then gradually moves into the new running position.
  • the V-belt 33 wraps around the drive shaft 29 in some areas. This enables the torque to be transmitted from the drive shaft 29 to the V-belt 33.
  • the drive shaft 29 is mounted in the machine frame, not shown, and driven by an electric motor, not shown.
  • the drive shaft 29 can be made smooth, in which case the V-belt 33 is also made smooth.
  • the drive shaft 29 can also be designed profiled.
  • FIG. 5 A further embodiment variant of a longitudinal cutting device 35 with a belt transmission and an additional friction wheel 36 for driving the circular knife 2 is shown in FIG. 5.
  • a pulley 37 is fixedly connected, which is rotatably mounted in the holder 3.
  • a lever arm 38 which extends in the direction of the drive shaft 39, is pivotably mounted in the holder 3.
  • a further pulley 41 is rotatably mounted.
  • a friction wheel 36 is firmly connected to the pulley 41.
  • the friction wheel 36 runs over the drive shaft 39.
  • an element 42 in particular a spring, is attached to the lever arm 38 in order to generate a tension.
  • a pneumatic element 42 such as a cylinder, for example, which generates both tensile and compressive forces and is therefore also able to detach the friction wheel 36 from the drive shaft 39.
  • the drive shaft 39 and the friction wheel 36 are smooth or with a
  • the drive shaft 39 and the friction wheel 36 are profiled also conceivable.
  • the torque of the drive shaft 39 is transmitted to the friction wheel 36 during operation of the longitudinal cutting device 35.
  • the friction wheel 36 is firmly connected to the pulley 41.
  • the pulley 41 transmits the torque by means of a V-belt 43 to the pulley 37, which in turn is firmly connected to the circular knife 2.
  • FIG. 6 shows a longitudinal cutting device 44 with a friction wheel gear for driving the circular knife 2.
  • a smooth impeller 45 is fixedly connected to the circular knife 2 and is rotatably mounted in the holder 3.
  • the smooth drive shaft 46 is supported on both sides in the machine frame.
  • An intermediate friction wheel 47 is arranged between the smooth drive shaft 46 and the impeller 45. The diameter of the intermediate friction wheel 47 is always greater than the minimum distance between the impeller 45 and the drive shaft 46.
  • the intermediate friction wheel 47 is pivotable on the carriage 5 and fastened to a lever 48 in a compensating element 49.
  • the compensating element 49 serves to compensate for play and at the same time to guide the intermediate friction wheel 47 during the movement of the circular knife via the guide elements 17.
  • the lever 48 is pivotally attached to the carriage 5 via a receptacle 50.
  • an element 51 in particular a compression spring, is arranged between the lever 48 and the slide 5. The element 51 can bring the intermediate friction wheel 47 into the effective range between the drive shaft 46 and the impeller 45 and at the same time generates the required contact pressure for the transmission of the torque. If the circular knife 2 is moved out of the cutting engagement with the lower knife 16 via the guide elements 17, the friction wheel 47 is simultaneously released from the drive shaft 46.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

L'invention concerne un dispositif de découpage longitudinal pour découper des bandes de matériau (15) en mouvement. Ce dispositif comprend au moins un chariot (5) qui est monté de manière à pouvoir se déplacer sur un élément de guidage (7) s'étendant transversalement au sens de déplacement de la bande de matériau et qui présente un support (3, 20) comportant une lame supérieure (2) montée de manière à pouvoir tourner librement. Ce dispositif de découpage longitudinal comprend en outre un arbre d'entraînement (8, 29, 39, 46) qui s'étend sur toute la largeur de la machine et qui permet d'entraîner la lame supérieure (2), notamment une lame circulaire, au moyen d'un engrenage.
EP02800004A 2001-09-27 2002-09-07 Dispositif de decoupage longitudinal pour decouper des bandes de materiau en mouvement Withdrawn EP1429897A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2001147731 DE10147731A1 (de) 2001-09-27 2001-09-27 Antrieb für Einzelobermesser
DE10147731 2001-09-27
PCT/EP2002/010053 WO2003028961A1 (fr) 2001-09-27 2002-09-07 Dispositif de decoupage longitudinal pour decouper des bandes de materiau en mouvement

Publications (1)

Publication Number Publication Date
EP1429897A1 true EP1429897A1 (fr) 2004-06-23

Family

ID=7700528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02800004A Withdrawn EP1429897A1 (fr) 2001-09-27 2002-09-07 Dispositif de decoupage longitudinal pour decouper des bandes de materiau en mouvement

Country Status (3)

Country Link
EP (1) EP1429897A1 (fr)
DE (1) DE10147731A1 (fr)
WO (1) WO2003028961A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7387057B2 (en) 2003-02-19 2008-06-17 Kampf Gmbh & Co. Maschinenfabrik Longitudinal slitter for moving web
DE10359479A1 (de) * 2003-12-17 2005-07-21 Cfs Germany Gmbh Längsschneider
DE102004037996A1 (de) * 2004-08-04 2006-03-16 Cfs Kempten Gmbh Vorrichtung zum Aufschneiden von Lebensmitteln

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3332326A (en) * 1964-09-21 1967-07-25 Koppers Co Inc Slitter and scorer assembly
US3831480A (en) * 1972-05-01 1974-08-27 J Phillips Rotary cutter-slitter for high speed bursting apparatus
FR2278459A1 (fr) * 1974-06-12 1976-02-13 Martin Sa Couteau rotatif a autoaffutage et bloc de coupe utilisant un tel couteau
JPS52112182A (en) * 1976-03-17 1977-09-20 Amada Co Ltd Gang screw
FR2495989A1 (fr) * 1980-12-17 1982-06-18 Renault Dispositif de coupe de materiau malleable en feuille
JPS5943114U (ja) * 1982-09-16 1984-03-21 北海製「あ」株式会社 スリツタ装置における刃合せ装置
DE3836502A1 (de) * 1988-10-26 1990-05-03 Bhs Bayerische Berg Vorrichtung zum axialen anpressen eines schneidwerkzeuges an das gegenwerkzeug einer laengsschneide- und/oder rillmaschine, insbesondere fuer wellpappe
CH682645A5 (fr) * 1990-02-21 1993-10-29 Peters W Maschf Machine à fendre en long une bande de matière qui défile.
EP0505508B1 (fr) * 1990-03-08 1995-12-06 Marquip, Inc. Appareil de refendage pour carton ondule et similaire
DE4421011A1 (de) * 1994-06-20 1996-01-04 Gerhard Schnabel Maschine zum Bearbeiten von Wellpappebahnen
IT1293122B1 (it) * 1997-06-18 1999-02-11 Fosber Spa Dispositivo e metodo per il taglio di un materiale nastriforme e macchina taglia - cordona incorporante detto dispositivo
US5979316A (en) * 1997-09-30 1999-11-09 Corrugated Gear & Services, Inc. Belt-driven printer-cutter machine for corrugated paperboard of varying thickness

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO03028961A1 *

Also Published As

Publication number Publication date
DE10147731A1 (de) 2003-04-17
WO2003028961A1 (fr) 2003-04-10

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