WO1999047317A1 - Dispositif de decoupage longitudinal pour le decoupage de bandes de materiau continues - Google Patents

Dispositif de decoupage longitudinal pour le decoupage de bandes de materiau continues Download PDF

Info

Publication number
WO1999047317A1
WO1999047317A1 PCT/EP1999/001509 EP9901509W WO9947317A1 WO 1999047317 A1 WO1999047317 A1 WO 1999047317A1 EP 9901509 W EP9901509 W EP 9901509W WO 9947317 A1 WO9947317 A1 WO 9947317A1
Authority
WO
WIPO (PCT)
Prior art keywords
knife
cutting device
longitudinal cutting
holder
guide
Prior art date
Application number
PCT/EP1999/001509
Other languages
German (de)
English (en)
Inventor
Armin Kloke
Albert Stitz
Henry Ring
Joachim Fuchs
Original Assignee
Jagenberg Papiertechnik 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
Priority claimed from DE1998110939 external-priority patent/DE19810939A1/de
Application filed by Jagenberg Papiertechnik Gmbh filed Critical Jagenberg Papiertechnik Gmbh
Publication of WO1999047317A1 publication Critical patent/WO1999047317A1/fr

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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2614—Means for mounting the cutting member
    • B26D7/2621—Means for mounting the cutting member for circular cutters
    • 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
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2664—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member for radial adjustment

Definitions

  • the invention relates to a longitudinal cutting device for cutting running material webs, in particular paper or cardboard webs, with at least one slide which is adjustably mounted on a guide which extends transversely to the web running direction and which contains a knife holder on which a circular knife is rotatably mounted.
  • Longitudinal cutting devices for paper or cardboard webs usually contain a plurality of circular knives arranged in pairs, 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 or cross cutting machines which produce individual narrower winding rolls from a wide material web or individual sheets by additional cross cutting.
  • the pairs of circular knives can be positioned transversely to the web running direction.
  • the pairs of circular knives each consist of a top knife supporting the web during cutting and a pointed knife immersed in the web, the cutting edges of which must be positioned exactly in relation to one another in the desired cutting position.
  • the pot knife used as the bottom knife is driven, while the pointed knife as the top knife is freely rotatable (DE 34 1 9 843-C2).
  • a generic longitudinal cutting device is known from DE 39 38 278-C2. Each circular knife is stored in a knife holder, which is part of a - 2 -
  • Each carriage can be positioned transversely by means of a drive device designed as a circumferential belt and has elements with which it can be coupled on the one hand to the drive device for the transverse adjustment, and on the other hand can be locked in its cutting position on the guide.
  • a drive device designed as a circumferential belt and has elements with which it can be coupled on the one hand to the drive device for the transverse adjustment, and on the other hand can be locked in its cutting position on the guide.
  • the invention has for its object to improve a generic slitting device so that it is able to cut paper or cardboard webs with a high basis weight at high production speeds with the required cut quality.
  • the knife holder of the carriage carrying a circular knife is made of a rigid casting with a wall thickness between 5 mm and 30 mm.
  • the knife shaft is made very thick compared to the known knife shafts with a diameter between 20 mm and 60 mm.
  • the storage of the circular knife on the knife holder is therefore very stiff and can be designed largely free of play in order to keep the so-called plane run as low as possible.
  • a flat runout is a movement of the circular knife that deviates from the ideal cutting plane in the direction of its axis of rotation. Any deviation of a circular knife from its ideal cutting plane affects either the cutting quality or the cutting performance.
  • the holder part of the carriage carrying a circular knife is mounted separately from the locking part which can be coupled to the guide.
  • the necessary positioning movement of the circular knife mounted on the slide, for example the lower knife, is brought about by a movement of the entire holder part.
  • Both the mounting of the circular knife on the knife holder and the mounting of the holder part on the guide can be made very stiff and largely free of play in order to keep the flattening as low as possible.
  • Figure 1 shows a side view of a pair of circular knives.
  • Figure 2 shows a section along the line A-B of Figure 1.
  • FIG. 3 shows a plan view in the direction of the arrow X in FIG. 2.
  • FIG. 4 shows a top view of two upper knife slides arranged next to one another and constructed in mirror image to one another.
  • the longitudinal cutting device shown in the drawings is installed in a cross cutting machine. It contains the number of pairs of circular knives required for the desired longitudinal cuts, each consisting of an upper knife 1 and a lower knife 2.
  • 1 disc-shaped pointed knife and 2 bottom knife are preferably used as the upper knife, as described for example in DE 34 1 9 843-C2.
  • Each circular knife 1, 2 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 1 can be adjusted in the direction of its axis of rotation against the associated lower knife 2 so that the two cutting edges can be aligned exactly relative to one another.
  • each upper knife 1 can be raised to an inactive position if it is not required for slitting.
  • the longitudinal cutting device is attached to cross members 3, 4, which extend over the working width of the cross cutting machine.
  • cross members 3, 4 which extend over the working width of the cross cutting machine.
  • Each upper knife 1 is rotatably mounted on a carriage which is mounted transversely to the web running direction on a guide rail 5 which extends transversely across the working width and is screwed to the crossbar 3.
  • Each carriage preferably consists of a holder part 6 and a locking part 7, which are mounted next to one another on the guide rail 5.
  • the holder part 6 is movably connected to the locking part 7 so that it can perform a relative movement to the latter on the guide rail 5. This construction makes it possible to position the cutting edges of the upper knives 1 against the cutting edges of the lower knives 2 by moving the holder part 6 relative to the locking part 7 after the carriage has been positioned. If a separate positioning movement is not required, the slide can also be made in one piece.
  • the relative movement of the holder part 6 to the locking part 7 is effected as a drive by means of a pneumatic piston-cylinder unit 8, 9, the cylinder 8 of which is screwed onto the locking part 7 and the end of the piston 9 the holder part 6 is attached.
  • a compression spring is pulled over the piston 9 and presses the holder part 6 out of the cutting position into a rest position in which it has the maximum distance from the locking part 7.
  • the locking part 7 consists of a tilt-proof slide carriage 10 mounted on the guide rail 5, an attached locking element 1 1 and the piston-cylinder unit 8, 9.
  • the locking element 1 1 contains a - for example pneumatically operated - clamping element 1 2, with which the entire locking part 7 can be clamped to the guide rail 5 in a certain position. - 5 -
  • the holder part 6 contains a frame 1 3 which can be moved in a transverse manner and cannot tip over and on which a knife holder 14 and a coupling element 15 for coupling to a drive element is fastened. If necessary, an additional clamping device for clamping on the guide rail 5 is attached to the frame 13.
  • a circumferentially drivable band 17 runs between the frame 13 and the crossbar 3 as a drive element for the transverse adjustment.
  • the latter has a projection 18 which extends between the two runs of the band 17.
  • a pneumatic piston-cylinder unit is arranged above the projection 18 as a coupling element 15, the piston end 19 of which presses downward against the band 17 supported by the projection 18 in order to clamp the frame 13 to the band 17.
  • the knife holder 14, in which the upper knife 1 is mounted is made of a very rigid casting, preferably made of steel. To the necessary stiffness of the
  • all parts of the knife holder 14 that are affected during cutting have a wall thickness between 5 mm and 30 mm. This does not exclude that individual, unloaded parts of the knife holder 14 have a smaller wall thickness; for example protective covers.
  • the frame 13, to which the knife holder 14 is fastened, is preferably also made from a cast steel part, the loaded parts of which likewise have a wall thickness between 5 mm and 30 mm.
  • the knife holder 14 is mounted on the frame 13 by means of a pneumatic piston-cylinder unit 20 so as to be vertically movable via a vertical guide 22, so that the upper knife 1 can be lifted from its working position on the lower knife 2 to a spaced rest position.
  • the upper side of the knife holder is preferably connected to the piston of the piston-cylinder unit 20 via an adjusting screw 23, so that the working position of the cutting edge of the knife 1 can be adjusted in height; for example if the diameter of a reground knife 1 has changed.
  • a thick and thus very rigid knife shaft 24 is freely rotatably mounted in a roller bearing 25, on the end of which the disk-shaped pointed knife 1 is fastened. So that the knife shaft - 6 -
  • the upper knife 1 can be driven by means of a rotary drive in order to be able to cut paper or cardboard with a high basis weight. If this requirement is not met, the upper knife 1 can also be freely rotatable. It is then driven by the driven lower knife when cutting.
  • An electric motor 26 which is fastened to the frame 21 above the knife holder 14, serves as the rotary drive for the upper knife 1.
  • Brushless DC motors in a very compact design are preferably used as the electric motors 26 for the rotary drive.
  • FIG. 4 shows a preferred arrangement of two adjacent longitudinal knife slides relative to one another:
  • the longitudinal cutting device contains slides in two embodiments, which are constructed essentially mirror images of one another with respect to the cutting plane. In Figure 4 two such slides are shown.
  • the motors 26 are also arranged exactly in mirror image, the two knife slides cannot be moved to a desired small distance from one another, since the motors would collide with one another. Therefore, in the preferred embodiment, shown in FIG. 4, of a longitudinal cutting device with two slides constructed in mirror image to one another, the motor 26 of one embodiment is arranged offset to the motor 26 of the other embodiment - 7 -
  • the motor 26 of one embodiment is arranged at a different distance from the guide rail 5, so that the two motors 26 can move next to one another when the two carriages approach.
  • the longitudinal cutting device contains a position measuring system that measures the position of each holder part 6 on the guide rail 5.
  • a position measuring system which determines the absolute position of each slide is preferably used, in which a combination of magnetic and ultrasonic effects is used for the measurement value acquisition. This is at the
  • Crossbar 3 attached a measuring tube 30 extending over the working width, over which a magnet 31 attached to the frame 13 is pushed with play for each slide. Magnetic fields are generated in the measuring tube 30 by current pulses,
  • pairs of circular knives 1, 2 are moved into their new positions using the following procedure:
  • the knife holder 14 is lifted vertically by means of the piston-cylinder unit 20. Both the clamping element 1 2 of the locking part 7 and - if present - the clamping device of the holder part 6 are released from the guide rail 5. The locking part 7 is brought by the piston-cylinder unit 8, 9 to the maximum distance from the holder part 6 and held securely in this position by the spring pulled over the piston 9.
  • the holder part 6 is coupled to the circulating belt 17 by means of the coupling element 15, and from this the entire carriage
  • the piston-cylinder unit 8, 9 pulls the holder part 6 with the upper knife 1 mounted thereon in the direction of the locking part 7 until the two cutting edges have the desired relative position to one another. Finally, the holder part 6 is also clamped to the guide rail 5 by means of the clamping device 1 6.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

L'invention concerne un dispositif de découpage longitudinal dans lequel un chariot contient un guide-lame (14) sur lequel un couteau circulaire (1) est monté de manière à pouvoir pivoter. Le guide-lame (14) est fabriqué dans une pièce moulée rigide, de préférence en acier, et toutes ses parties sollicitées lors du découpage présentent une épaisseur de paroi comprise entre 5 mm et 30 mm. Le couteau circulaire (1) est monté sur un axe (24) dont le diamètre est compris entre 20 mm et 60 mm. Le chariot comprend une pièce de maintien (6) et une pièce d'arrêt (7) qui sont chacune montées sur le guide (5) et qu'on rapproche ou qu'on éloigne l'une de l'autre au moyen d'un entraînement (8, 9).
PCT/EP1999/001509 1998-03-13 1999-03-09 Dispositif de decoupage longitudinal pour le decoupage de bandes de materiau continues WO1999047317A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE1998110939 DE19810939A1 (de) 1998-03-13 1998-03-13 Längsschneidevorrichtung zum Schneiden von laufenden Materialbahnen
DE19810939.3 1998-03-13
DE29812753U DE29812753U1 (de) 1998-03-13 1998-07-17 Längsschneideeinrichtung zum Schneiden von laufenden Materialbahnen
DE29812753.9 1998-07-17

Publications (1)

Publication Number Publication Date
WO1999047317A1 true WO1999047317A1 (fr) 1999-09-23

Family

ID=26044597

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/001509 WO1999047317A1 (fr) 1998-03-13 1999-03-09 Dispositif de decoupage longitudinal pour le decoupage de bandes de materiau continues

Country Status (1)

Country Link
WO (1) WO1999047317A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001041985A1 (fr) * 1999-12-09 2001-06-14 Wilhelm Bilstein Kg Dispositif de coupe pourvu de son propre entrainement pour machine a refendre des bandes de materiau continues
US7387057B2 (en) 2003-02-19 2008-06-17 Kampf Gmbh & Co. Maschinenfabrik Longitudinal slitter for moving web
DE102016122983A1 (de) 2015-11-30 2017-06-01 Kampf Schneid- Und Wickeltechnik Gmbh & Co. Kg Winkelverstellbarer Rasierklingenhalter
CN109483633A (zh) * 2018-11-20 2019-03-19 桂林航天工业学院 一种双工位导电胶条切条机

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712852A (en) * 1951-07-21 1955-07-12 Black Clawson Co Cutter unit for slitting machines
FR2195180A5 (fr) * 1972-07-29 1974-03-01 Jagenberg Werke Ag
US4380945A (en) * 1981-01-26 1983-04-26 Beloit Corporation Preadjustable web slitter and non-deflecting mounting therefor
DE3247711A1 (de) * 1982-12-23 1984-06-28 German 8700 Würzburg Gresser Vorrichtung zur steigerung der masshaltigkeit bzw. messgenauigkeit durch automatische nachjustierung von elektronischen distanzmesseinrichtungen an maschinen mit mindestens zwei umlaufenden schneidscheiben
EP0333001A2 (fr) * 1988-03-14 1989-09-20 Valmet Paper Machinery Inc. Support pour couteau supérieur
US5125300A (en) * 1988-06-03 1992-06-30 Tidland Corporation System for automatically positioning multiple tool-holding carriages
US5447086A (en) * 1992-05-13 1995-09-05 Schober Gmbh Werkzeug-Und Maschinenbau Blade support
DE19634047A1 (de) * 1996-08-23 1997-04-17 Iai Ingenieurbuero Fuer Ausrue Druckmittelbetätigter Kreismesserhalter
US5713257A (en) * 1993-03-23 1998-02-03 Fischl; Rudolph Stackable compact slitting knife assembly

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2712852A (en) * 1951-07-21 1955-07-12 Black Clawson Co Cutter unit for slitting machines
FR2195180A5 (fr) * 1972-07-29 1974-03-01 Jagenberg Werke Ag
US4380945A (en) * 1981-01-26 1983-04-26 Beloit Corporation Preadjustable web slitter and non-deflecting mounting therefor
DE3247711A1 (de) * 1982-12-23 1984-06-28 German 8700 Würzburg Gresser Vorrichtung zur steigerung der masshaltigkeit bzw. messgenauigkeit durch automatische nachjustierung von elektronischen distanzmesseinrichtungen an maschinen mit mindestens zwei umlaufenden schneidscheiben
EP0333001A2 (fr) * 1988-03-14 1989-09-20 Valmet Paper Machinery Inc. Support pour couteau supérieur
US5125300A (en) * 1988-06-03 1992-06-30 Tidland Corporation System for automatically positioning multiple tool-holding carriages
US5447086A (en) * 1992-05-13 1995-09-05 Schober Gmbh Werkzeug-Und Maschinenbau Blade support
US5713257A (en) * 1993-03-23 1998-02-03 Fischl; Rudolph Stackable compact slitting knife assembly
DE19634047A1 (de) * 1996-08-23 1997-04-17 Iai Ingenieurbuero Fuer Ausrue Druckmittelbetätigter Kreismesserhalter

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001041985A1 (fr) * 1999-12-09 2001-06-14 Wilhelm Bilstein Kg Dispositif de coupe pourvu de son propre entrainement pour machine a refendre des bandes de materiau continues
US7387057B2 (en) 2003-02-19 2008-06-17 Kampf Gmbh & Co. Maschinenfabrik Longitudinal slitter for moving web
DE102016122983A1 (de) 2015-11-30 2017-06-01 Kampf Schneid- Und Wickeltechnik Gmbh & Co. Kg Winkelverstellbarer Rasierklingenhalter
WO2017093240A1 (fr) 2015-11-30 2017-06-08 Kampf Schneid- Und Wickeltechnik Gmbh & Co. Kg Support de lame de rasoir à réglage d'angle pour machine de coupe et d'enroulement
CN109483633A (zh) * 2018-11-20 2019-03-19 桂林航天工业学院 一种双工位导电胶条切条机
CN109483633B (zh) * 2018-11-20 2023-10-03 桂林航天工业学院 一种双工位导电胶条切条机

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