EP0263359B1 - Querschneider - Google Patents

Querschneider Download PDF

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Publication number
EP0263359B1
EP0263359B1 EP87113899A EP87113899A EP0263359B1 EP 0263359 B1 EP0263359 B1 EP 0263359B1 EP 87113899 A EP87113899 A EP 87113899A EP 87113899 A EP87113899 A EP 87113899A EP 0263359 B1 EP0263359 B1 EP 0263359B1
Authority
EP
European Patent Office
Prior art keywords
knife
core
cross
knives
shaft
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.)
Expired - Lifetime
Application number
EP87113899A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0263359A1 (de
Inventor
Walter Pohl
Arthur Dirks
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.)
Peters Maschinenfabrik GmbH
Original Assignee
Peters Maschinenfabrik 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 Peters Maschinenfabrik GmbH filed Critical Peters Maschinenfabrik GmbH
Publication of EP0263359A1 publication Critical patent/EP0263359A1/de
Application granted granted Critical
Publication of EP0263359B1 publication Critical patent/EP0263359B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • 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
    • B26D7/265—Journals, bearings or supports for positioning rollers or cylinders relatively to each other
    • 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
    • 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
    • B26D7/14—Means for treating work or cutting member to facilitate cutting by tensioning the work
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/4824—With means to cause progressive transverse cutting
    • Y10T83/4827—With helical cutter blade
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4833—Cooperating tool axes adjustable relative to each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/465—Cutting motion of tool has component in direction of moving work
    • Y10T83/4766—Orbital motion of cutting blade
    • Y10T83/4795—Rotary tool
    • Y10T83/483—With cooperating rotary cutter or backup
    • Y10T83/4836—With radial overlap of the cutting members

Definitions

  • the invention relates to a cross cutter for cutting web-like material, in particular corrugated cardboard, according to the preamble of claim 1.
  • a cross cutter for cutting web-like material, in particular corrugated cardboard, according to the preamble of claim 1.
  • Such a cross cutter is known, for example, from the published patent application DE-A-3523603.
  • Knife shaft pairs are usually used in cross cutters for corrugated cardboard production plants, in which each shaft holds at least one knife with a continuously running cutting edge which is at the same distance from the shaft axis.
  • the knife blade either runs parallel to the shaft axis or it is arranged helically.
  • the helical arrangement has the advantage that during the cutting process in a single Only a short section of the cutting edges is in engagement with one another at a time, which keeps the load on the knives, the knife holder and the shafts low.
  • the cutting edges of the knives describe circles that intersect slightly.
  • the cutting edge of one knife lies in the leading and the other in the trailing area of the knife blade.
  • the circumferential radius of the cutting edge in the trailing area is chosen to be somewhat larger than the radius of the other cutting knife, so that only one touch of the cutting edges takes place during one revolution and after this contact the cutting edges move relatively quickly apart.
  • the knife of at least one shaft is adjustably attached at a number of points. If wear on the knife edges is no longer guaranteed, at least one knife must be readjusted. This process requires an interruption in production and is very time-consuming. In the case of tough material or a certain grammage of the corrugated cardboard or also with moist or coated corrugated cardboard, a not inconsiderable preload between the knives must be set in order to obtain a perfect cut. A larger preload requires high cutting forces. In turn, high cutting forces occur at relatively short intervals readjustment of the knives required, which leads to undesired production interruption. High cutting forces also lead to rapid wear of the knives. Since heavy material to be sliced is not so common, it would be more economical to reset the high preload once the knife has been in service.
  • US-A-3,448,684 describes a cross cutter for cutting web-like material.
  • this cross cutter does not have two knives that touch each other briefly during the cutting process, but only a single knife that interacts with a counter tool made of soft material. If a controllable bending moment is also applied to the ends of the cores of the knife shafts, however, this bending moment is not mentioned in the description of US-A-3,448,684, but is only represented by a figure in dashed lines. This bending moment is generated by the force of springs.
  • the invention is therefore based on the object of providing a cross cutter for cutting web-like material, in particular corrugated cardboard, in which an extension of the service life of the knives is achieved.
  • the shafts or knife bars carrying the knives span a considerable length. It is therefore known to store the cutter bars in a tube-like manner on a fixed core.
  • the fixed core is fixed in the machine frame and increases the bending stiffness required for cutting without increasing the mass moment of inertia of the cutter bar.
  • a bending moment is applied to at least one end of a core, with the aid of a suitable force unit, which can act mechanically, hydraulically, pneumatically or electromechanically.
  • the direction of the force is such that the deflection of the core and thus also the knife shaft results in an increase in the pretension.
  • the bending direction of the core is therefore approximately parallel to the readjustment direction of the knives.
  • the direction of loading of the force unit can be changed to change the bending direction.
  • a force unit acts on both ends of a core as far as possible in order to obtain a uniform deflection.
  • the knives on the knife shafts can be adjusted by means of their adjusting screws so that the usual light cardboard qualities are cut. This means special protection of the knives and thus an increased service life. Should be heavy cardboard with the cross cutter cut, the knives would usually be set hard.
  • the application of a bending moment to the core of the cutter bars pre-bends so that a desired cutter bias is generated.
  • the size of the preload can be made dependent on the quality of the material to be cut. A production interruption is not necessary. Just as quickly as a desired preload can be applied, it can be made to disappear again by eliminating the load from the power unit.
  • the force unit is expediently controlled by a suitable control device, which in turn can also be programmed in order to ensure a corresponding bending stress at the core of the cutter bar when different qualities are obtained.
  • the desired deflection may only need to be a fraction of a millimeter to set a desired prestress.
  • the deflection will naturally be greatest in the middle of the cutter bar. This effect is not disadvantageous, on the contrary, the cutting process is particularly critical in this area, so that a relatively large pre-tension always ensures a perfect cut.
  • Two cores 11, 12 are arranged in a machine frame 10 of a cross cutter. They support with the help of roller bearings 13 and 14 hollow shafts 15, 16.
  • the hollow shafts 15, 16 carry gears 17 and 18 at the ends, so that the hollow shafts 15, 16 are coupled in a rotationally rigid manner.
  • the drive of the gears 17, 18 is not shown.
  • Knives 19, 20 are connected to the hollow shafts 15, 16. For the sake of simplicity, they are shown as knives that run parallel to the shaft axis. Knives with helical shapes are usually attached to cross cutters running cutting edge.
  • the knife 19 of the upper shaft 15 is firmly attached to a holder 21.
  • the lower knife 20 can be adjusted relative to its holder 22 in order to bear against the upper knife 21 when the knife edges touch.
  • the lower core 12 is movably supported in the machine frame 10 by means of self-aligning bearings 23, 24. Its ends protrude to a certain extent on both sides. With the help of a force unit, not shown, pressure can be exerted on both ends, as indicated by the arrows 25. In this way, a bending moment is applied to the core 12 from both sides, the moment arm being denoted by m.
  • the direction of the deflection is indicated by arrow 26 in FIG. 2.
  • the bending direction is approximately parallel to the adjustment knife of the lower knife 20.
  • the corresponding bending is indicated in FIG. 2 by the dashed line 27. Both in Fig. 1 and in Fig. 2, the deflection of the knife shaft 26 is shown greatly exaggerated.
  • the knives 19, 20 lie against one another with an increased pretension when they touch. This pretension depends on the extent of the deflection and this depends on the applied bending force. If a bending moment is applied to both cores 11, 12, the bending force is reduced to half.
  • the application of the bending moment can be accomplished by any suitable force device that is operated pneumatically, hydraulically, mechanically, electromechanically or the like.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
EP87113899A 1986-10-08 1987-09-23 Querschneider Expired - Lifetime EP0263359B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3634198 1986-10-08
DE19863634198 DE3634198A1 (de) 1986-10-08 1986-10-08 Querschneider

Publications (2)

Publication Number Publication Date
EP0263359A1 EP0263359A1 (de) 1988-04-13
EP0263359B1 true EP0263359B1 (de) 1991-05-15

Family

ID=6311256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113899A Expired - Lifetime EP0263359B1 (de) 1986-10-08 1987-09-23 Querschneider

Country Status (5)

Country Link
US (1) US4756219A (enrdf_load_stackoverflow)
EP (1) EP0263359B1 (enrdf_load_stackoverflow)
JP (1) JPS63245391A (enrdf_load_stackoverflow)
DE (2) DE3634198A1 (enrdf_load_stackoverflow)
ES (1) ES2022249B3 (enrdf_load_stackoverflow)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3860160D1 (de) * 1987-04-23 1990-06-28 Schloemann Siemag Ag Laengsteil-streifenschere.
DE4240232C2 (de) * 1992-11-30 1995-04-27 Bhs Corr Masch & Anlagenbau Querschneider für Warenbahnen, insbesondere für eine Wellpappenbahn
US5713256A (en) * 1994-03-09 1998-02-03 The Langston Corporation Dual speed limits for a cut-off
US6073527A (en) * 1997-04-11 2000-06-13 Marquip, Inc. Method and apparatus for direct shingling of cut sheets at the cutoff knife
US6032558A (en) * 1998-03-20 2000-03-07 Marquip, Inc. Rotary knife with active vibration control
US6389941B1 (en) 2000-04-14 2002-05-21 Marquip, Llc Rotary knife with electromagnetic active vibration control
DE10109933C1 (de) * 2001-02-21 2002-08-22 Aichele Werkzeuge Gmbh Schneidvorrichtung und Schneidwerkzeug
SE527556C2 (sv) * 2004-07-02 2006-04-11 Sandvik Intellectual Property En stödvals för en rotationsknivenhet och en rotationsknivenhet med en dylik stödvals
SE527845C2 (sv) * 2004-11-03 2006-06-20 Sandvik Intellectual Property En stödvals för en rotationsknivenhet och en rotationsknivenhet med en dylik stödvals
DE102007016451A1 (de) * 2007-03-30 2008-10-02 Wilhelm Aichele Rotationsschneidevorrichtung
ES2332120B1 (es) * 2008-06-20 2010-11-04 Manuel Torres Martinez Sistema de corte para tiras.
IT1394271B1 (it) * 2009-05-25 2012-06-06 Ima Flavour S R L Ora Ima Ind S R L Gruppo di compressione - incisione - taglio a rulli
EP3191269B1 (en) * 2014-09-10 2018-07-11 FOSBER S.p.A. Device for transverse cutting of a web material and machine containing said device
JP6148418B1 (ja) * 2016-02-24 2017-06-14 日本タングステン株式会社 ロータリーカッター用ロールおよびロータリーカッター

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058877A (en) * 1975-04-15 1977-11-22 Escher Wyss Limited Deflection-controlled roll for the pressure treatment of materials in web form
DE2827983A1 (de) * 1977-07-05 1979-01-25 Egan Machinery Co Schneidmaschine mit rotierendem messer

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3326439A (en) * 1964-09-15 1967-06-20 Harris Intertype Corp Preloading structure for cooperating cylinders
FR1502646A (fr) * 1966-03-31 1967-11-24 Gillette France Palier à rattrapage de jeu
DE1808981B2 (de) * 1968-11-14 1971-04-29 Walzenlagerung
US3570348A (en) * 1968-11-25 1971-03-16 Hallden Machine Co Rotary shear
US3709077A (en) * 1971-03-01 1973-01-09 Bretting C Mfg Co Inc Cut-off device
US3828636A (en) * 1973-03-21 1974-08-13 Pratt Mfg Corp Rotary cutting apparatus
US4061063A (en) * 1976-12-27 1977-12-06 The Procter & Gamble Company Rotary shear
FR2389968B1 (enrdf_load_stackoverflow) * 1977-05-02 1983-02-04 Burroughs Corp
DE2722872A1 (de) * 1977-05-20 1978-11-23 Winkler Duennebier Kg Masch Rotationsstanze zum ausstanzen von oeffnungen aus einer werkstoffbahn
DE2824900C2 (de) * 1978-06-07 1980-08-07 Jagenberg-Werke Ag, 4000 Duesseldorf Vorrichtung zum Längsschneiden von Warenbahnen
JPS5748492A (en) * 1980-09-01 1982-03-19 Mitsubishi Heavy Ind Ltd Rotary tabular material cutter
US4517873A (en) * 1983-04-25 1985-05-21 Wilson Manufacturing Company Die cutting apparatus
US4548112A (en) * 1984-07-20 1985-10-22 Marquip, Inc. Web cutting
US4656905A (en) * 1985-04-02 1987-04-14 Wean United, Inc. Shearing apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058877A (en) * 1975-04-15 1977-11-22 Escher Wyss Limited Deflection-controlled roll for the pressure treatment of materials in web form
DE2827983A1 (de) * 1977-07-05 1979-01-25 Egan Machinery Co Schneidmaschine mit rotierendem messer

Also Published As

Publication number Publication date
EP0263359A1 (de) 1988-04-13
US4756219A (en) 1988-07-12
DE3634198C2 (enrdf_load_stackoverflow) 1988-10-13
ES2022249B3 (es) 1991-12-01
JPS63245391A (ja) 1988-10-12
DE3770106D1 (de) 1991-06-20
DE3634198A1 (de) 1988-04-21

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