EP0935517A1 - Guide-lame pour couteau circulaire avec protege-mains - Google Patents

Guide-lame pour couteau circulaire avec protege-mains

Info

Publication number
EP0935517A1
EP0935517A1 EP98932155A EP98932155A EP0935517A1 EP 0935517 A1 EP0935517 A1 EP 0935517A1 EP 98932155 A EP98932155 A EP 98932155A EP 98932155 A EP98932155 A EP 98932155A EP 0935517 A1 EP0935517 A1 EP 0935517A1
Authority
EP
European Patent Office
Prior art keywords
knife
protective hood
circular knife
circular
protective
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.)
Granted
Application number
EP98932155A
Other languages
German (de)
English (en)
Other versions
EP0935517B1 (fr
Inventor
Willy Bilstein
Ingo Picker
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.)
Wilhelm Bilstein KG Spezialfabrik fuer Rundmesser und Plattenventile
Wilhelm Bilstein KG Spezialfabrik fuer Maschinenmesser und Kompressorventile
Original Assignee
Wilhelm Bilstein KG Spezialfabrik fuer Rundmesser und Plattenventile
Wilhelm Bilstein KG Spezialfabrik fuer Maschinenmesser und Kompressorventile
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8044441&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0935517(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wilhelm Bilstein KG Spezialfabrik fuer Rundmesser und Plattenventile, Wilhelm Bilstein KG Spezialfabrik fuer Maschinenmesser und Kompressorventile filed Critical Wilhelm Bilstein KG Spezialfabrik fuer Rundmesser und Plattenventile
Publication of EP0935517A1 publication Critical patent/EP0935517A1/fr
Application granted granted Critical
Publication of EP0935517B1 publication Critical patent/EP0935517B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B26D7/22—Safety devices specially adapted for cutting machines
    • 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
    • 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
    • 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
    • Y10T83/606—Interrelated tool actuating means and guard means
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7734—With guard for tool
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7809—Tool pair comprises rotatable tools
    • Y10T83/783—Tool pair comprises contacting overlapped discs
    • 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
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8733—Tool movable to cooperate selectively with one of a plurality of mating tools

Definitions

  • the invention relates to a knife holder for a circular knife rotatably mounted in a knife head for the longest cutting of material webs, in particular material webs made of paper or plastic film, the knife holder being provided with a hand guard.
  • a knife holder for roll cutting machines which has a hand guard which is supplemented on the side facing the counter knife by at least one can segment which can be actuated via a separate piston-cylinder unit which is operated with the piston-cylinder unit is connected in series.
  • the can segment In the position of the circular knife which is raised from the counter knife, the can segment is closed by spring force.
  • both piston-cylinder units are acted upon by the pressure medium, so that the can segment in Swivel the handguard in and release the cutting edge of the circular knife.
  • Such a knife holder proves disadvantageous in that, in addition to the high construction costs for an additional piston-cylinder unit, a larger width of the knife holder is necessary.
  • EP-A-0 562 454 shows a similar arrangement with a two-part protective hood, the part of the protective hood facing the counter knife, designed as a can segment and provided with a slot, being vertically displaceably mounted.
  • the can segment is moved via a separate piston-cylinder unit.
  • the can segment In the raised position of the circular knife, the can segment is held in the closed position by a closing spring and is retracted when lowering over the piston, so that the cutting edge of the circular knife can pass through the slots.
  • a hand guard designed in this way is complex and prone to failure due to the multi-part construction and the necessary complicated adjustment mechanism.
  • EP-A-0 333 001 shows a knife holder with a protective hood as hand protection, which is fixedly attached to the base body of the knife holder and completely covers it in the raised position of the circular knife. When lowering the circular knife against the counter knife, the circular knife moves out of the fixed protective hood.
  • DE-U-90 12 926 also shows a knife holder for reel cutting machines, in which the circular knife is surrounded on the side and on the side facing away from the counter knife by a firm hand guard, and the cutting area of the knife is covered by a movable segment which is likewise covered by a complex drive device is opened and closed.
  • the invention is therefore based on the object of providing a knife holder for circular knives which, with a small overall width, good functional safety for hand protection with the simplest possible construction guaranteed.
  • the object is achieved by a knife holder for a bearing mounted rotatably in a knife head
  • Circular knife for the longitudinal cutting of material webs, with a base body which can be fastened to a cutter bar, on which the cutter head is mounted so that it can be moved back and forth via a cross-member between a rest position and a cutting position, and with a protective hood covering the circular knife over at least part of its circumference is movably mounted relative to the circular knife so that in the cutting position the area of the cutting edge which is in engagement with a lower knife is exposed and in the rest position the cutting edge is at least protruded laterally by the protective hood, and with a return spring between the protective hood and the crossbar is arranged to hold the protective hood in the cutting position of the circular knife in a working position releasing the cutting edge of the circular knife, and that in the rest position of the circular knife the protective hood presses through a stop arranged on the base body into a protective position in which the circular knife esser is covered by the protective hood.
  • the advantage of a knife holder designed according to the invention is that, in the rest position of the knife head, the worker is protected from injuries from the circular knife edge, the rest position of the knife head in the sense of this invention being understood to mean the position in which the circular knife is raised from the associated lower knife . In the rest position of the circular knife, the worker can make adjustments to the knife holder and / or
  • the return spring which acts between the crossmember and the protective hood, can be designed, for example, as a leg torsion compression or tension spring.
  • the protective hood which is designed in one piece in accordance with the invention, enables simple and reliable protection of the worker against injuries from the circular knife edge in comparison with the known prior art.
  • the fact that the only one-piece protective hood has to be moved eliminates the more complex constructions, which require a segment that can be moved in addition to a rigid protective hood to protect against the circular knife and which has to be moved by separate drives.
  • the simple protective function of the protective hood is ensured in that, as soon as the cutter head is lifted off the lower cutter, the protective hood is automatically pressed into the protective position by means of the stop arranged on the base body, so that the circular knife edge is completely covered in the rest position of the cutter head.
  • the stop located on the base body presses the protective hood in the direction of the lower knife.
  • the protective hood is pivotally mounted in the plane of the circular knife.
  • a bearing element acting between the crossmember and the protective hood is provided, around which the protective hood can be pivoted, so that in the working position the protective hood is pivoted through an angle relative to the protective position.
  • the protective hood is slidably mounted to the circular knife.
  • a protective hood slidably mounted to the circular knife is mounted so that the protective hood is trans- is mounted movably in the direction of the lifting and lowering movement of the cutter head.
  • the protective hood can be mounted, for example, by bolts which are connected to the protective hood and which are guided in at least one elongated hole arranged in the crossmember. It is expedient if an elongated hole is arranged on both sides of a circular knife axis, the length of which extends in the direction of the lifting and lowering movement. It is also possible for the bolts to be connected to the crossmember and to be guided in an elongated hole arranged in the protective hood. It is also possible for the cross member to have a groove in which a sliding block connected to the protective hood is guided.
  • At least one guide element acting between the cross member and the movable protective hood is provided.
  • the advantage of a guide element acting between the crossmember and the protective hood is that it is particularly pivotable in the plane of the circular knife
  • Protective hood this is also connected to the crossbar, which results in better storage and guidance of the protective hood.
  • a guide element in particular prevents the protective hood from bending out laterally against the plane of the circular knife.
  • a guide element connected to the protective hood can, for example, engage in an elongated hole or a groove arranged on the crossmember, the elongated hole or the groove expediently having the shape of a circular arc which is swept by the guide element during a pivoting movement of the protective hood.
  • the stop is adjustable.
  • an adjustable stop it is possible to adapt it so that, depending on the application, the optimal protective and / or working position of the protective hood can be adjusted.
  • the protective hood is approximately circular, the outer diameter of the protective hood being larger than the diameter of the circular knife, so that the cutting edge of the circular knife is completely covered in the protective position.
  • an edge which is angled vertically to the circular knife plane and which extends at least over a partial area of the circumference of the protective hood is arranged on the protective hood.
  • the edge which is angled vertically to the plane of the circular knife ensures that on the one hand the circular knife edge is covered at least over a partial area of the circumference and on the other hand one side of the circular knife remains accessible in order to be able to adjust, change and / or adjust the circular knife from this side.
  • no edge is arranged on the side of the protective hood facing the lower knife, so that the protective hood in the working area of the circular knife is covered only by a part of the protective hood running parallel to the knife plane in the rest position.
  • the angled edge extends over the full circumference of the circular knife and has a slot-shaped opening for the circular knife edge in its area assigned to the cutting position.
  • the fact that the angled edge has a slot-shaped opening in its area assigned to the cutting position means that when the protective hood is moved into the working position, the circular knife edge can pass through the slot-shaped opening.
  • the cutting edge is covered by the angled edge with the slit-shaped opening, thereby avoiding injuries to the worker.
  • Fig. 1 is a side view of a knife holder for
  • FIG. 2 shows a partially sectioned front view of the knife holder according to FIG. 1 with a first embodiment for the protective hood, the knife head being in the rest position,
  • Fig. 3 is a partially sectioned front view of the knife holder of FIG. 1 with another
  • Embodiment for the protective hood with the cutter head in the cutting position.
  • FIG. 1 shows a side view of a knife holder 1 for circular knives 2 with a base body 3, which can be fixed to a knife bar (not shown in more detail) by means of gill means and a fastening groove 4.
  • the base body 3 has at least one guide rod 5 which can be displaced in the base body 3 by means of guides via a piston-cylinder unit in the base body.
  • a cutter head 7 is mounted on the guide rod 5 by means of a cross member 6.
  • the cutting edge of the circular knife 2 is essentially covered by a protective hood 9 which is pivotally mounted about a bearing element 10 in the plane of the circular knife 2.
  • the bearing element 10 is arranged in a bore 11 of the protective hood 9 and connected to the cross member 6.
  • the protective hood 9 Due to the bore 12 provided on the protective hood 9 for receiving a bearing element 10, the protective hood is suitable for right and left stop. If the cutter head 7 is in the cutting position, which means that the cutting edge 8 of the circular knife 2 interacts with a lower knife 13, the protective hood 9 is by means of a return spring 17 acting between the protective hood 9 and the cross member 6, which is designed as a tension spring in the Working position deflected, whereby the cutting edge 8 of the circular knife 2 is released and protrudes from the protective hood 9.
  • FIG. 2 shows a partially sectioned front view of the knife holder 1 according to FIG. 1 with a guide rod 5 to which the cross member 6 is connected by means of screws 15, the cutter head 7 being mounted on the cross member 6 and being moved into a rest position "R” .
  • the fully extended illustration shows the protective hood 9 in the protective position "S”, the dashed illustration showing the protective hood in the working position "A”.
  • the protective hood 9 is pressed into its protective position “S” by the stop 14, which is adjustably arranged on the base body 2, when the cutter head 7 is lifted off the lower cutter 13.
  • the edge 19 of the protective hood 9 projects beyond the cutting edge 8 of the circular knife 2, so that injuries to the worker are avoided.
  • Fig. 3 shows the knife holder 1 in the cutting position "P".
  • the coverage of the circular knife edge 8 is in the illustrated embodiment by a vertical to the circular knife water level 8 angled edge 18 is reached, which extends over the entire circumference and which has a slot 16 in the working area.
  • the circular knife 2 can pass through the opening slot 16 which is arranged in the edge 18 which is angled vertically to the plane of the circular knife. It is also possible to move the protective hood with pneumatic, hydraulic or electromagnetic means.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Details Of Cutting Devices (AREA)
  • Harvester Elements (AREA)

Abstract

L'invention concerne un guide-lame (1) pour un couteau circulaire (2) servant à la séparation longitudinale de bandes de matériau. Le guide-lame selon l'invention comporte un corps de base (3) que l'on peut fixer à une barre porte-lame et sur lequel est logée une tête de lame (7) pouvant effectuer, sur une entretoise, un mouvement de va-et-vient entre une position de repos (R) et une position de coupe (P). Ce guide-lame comporte également un capot de protection (9) qui recouvre le couteau circulaire (2) sur au moins une partie de sa circonférence et qui est logé mobile par rapport au couteau circulaire (2) de telle façon que le tranchant (8) est à nu en position de coupe (P) et qu'il est recouvert, au moins latéralement, par le capot de protection (9) en position de repos (R).
EP98932155A 1997-08-11 1998-06-15 Guide-lame pour couteau circulaire avec protege-mains Expired - Lifetime EP0935517B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29714312U 1997-08-11
DE29714312U DE29714312U1 (de) 1997-08-11 1997-08-11 Messerhalter für Kreismesser mit Handschutz
PCT/EP1998/003595 WO1999007529A1 (fr) 1997-08-11 1998-06-15 Guide-lame pour couteau circulaire avec protege-mains

Publications (2)

Publication Number Publication Date
EP0935517A1 true EP0935517A1 (fr) 1999-08-18
EP0935517B1 EP0935517B1 (fr) 2002-08-28

Family

ID=8044441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98932155A Expired - Lifetime EP0935517B1 (fr) 1997-08-11 1998-06-15 Guide-lame pour couteau circulaire avec protege-mains

Country Status (4)

Country Link
US (1) US6155152A (fr)
EP (1) EP0935517B1 (fr)
DE (3) DE29714312U1 (fr)
WO (1) WO1999007529A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008014869U1 (de) 2008-11-08 2009-01-22 Wilhelm Bilstein KG Spezialfabrik für Maschinenmesser und Kompressorventile Verriegelungsmechanismus für Steckverbindung an Kreismesserhalter
EP2436627A3 (fr) * 2010-09-30 2012-06-13 Voith Patent GmbH Procédé d'enroulement et machine de découpage de rouleaux

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6098510A (en) * 1997-09-19 2000-08-08 Kimberly-Clark Worldwide, Inc. Method and apparatus for slitting a sheet material web
US6398981B1 (en) * 1998-09-18 2002-06-04 Universite Laval Photopolymerizable composition sensitive to light in a green to infrared region of the optical spectrum
DE10323753B4 (de) * 2003-05-22 2007-05-03 Dienes Werke für Maschinenteile GmbH & Co KG Längsschneidemaschine mit gekühlter Schneidregion
DE102006051359A1 (de) * 2006-10-27 2008-04-30 Khs Ag Schneidwerk für ein Etikettieraggregat sowie Etikettieraggregat mit einem solchen Schneidwerk
US20090031851A1 (en) * 2007-08-03 2009-02-05 Omni Technologies, Inc. Slitter Guard
IT1400975B1 (it) * 2010-06-30 2013-07-05 Cavagna Elio Srl Dispositivo portautensile per macchine da taglio
WO2017189201A1 (fr) * 2016-04-29 2017-11-02 Ranpak Corp Mécanisme de découpe pour une machine et un procédé de conversion de fardage
JP6927574B2 (ja) * 2016-09-21 2021-09-01 デュプロ精工株式会社 スリッタ、シート裁断機、及びシート加工装置
DE102017117524A1 (de) * 2017-08-02 2019-02-07 DIENES WERKE FüR MASCHINENTEILE GMBH & CO. KG Messerhalter mit Einstellschieber

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802528A (en) * 1953-11-09 1957-08-13 Dusenbery Co John Score-cut slitting mechanism
DE8705312U1 (de) * 1987-04-09 1987-06-19 Dienes Werke für Maschinenteile GmbH & Co KG, 5063 Overath Druckmittelbetätigter Sicherheitsmesserhalter
FI80225C (fi) * 1988-03-14 1990-05-10 Valmet Paper Machinery Inc Oeverknivhaollare.
JP3270867B2 (ja) * 1992-03-23 2002-04-02 エリオ・カバーニャ・ソシエタ・ア・レスポンサビリタ・リミタータ 条片状の材料切断用の切断装置
DE4236288C1 (de) * 1992-10-28 1993-12-09 Dienes Werke Längsschneidemaschine mit Lageüberprüfung der Messerschneiden

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9907529A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202008014869U1 (de) 2008-11-08 2009-01-22 Wilhelm Bilstein KG Spezialfabrik für Maschinenmesser und Kompressorventile Verriegelungsmechanismus für Steckverbindung an Kreismesserhalter
EP2436627A3 (fr) * 2010-09-30 2012-06-13 Voith Patent GmbH Procédé d'enroulement et machine de découpage de rouleaux

Also Published As

Publication number Publication date
DE19881239D2 (de) 2000-02-24
WO1999007529A1 (fr) 1999-02-18
DE29714312U1 (de) 1998-09-24
US6155152A (en) 2000-12-05
EP0935517B1 (fr) 2002-08-28
DE59805305D1 (de) 2002-10-02

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