EP0821637B1 - Tete porte-lames, en particulier pour raboteuse - Google Patents

Tete porte-lames, en particulier pour raboteuse Download PDF

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Publication number
EP0821637B1
EP0821637B1 EP96914896A EP96914896A EP0821637B1 EP 0821637 B1 EP0821637 B1 EP 0821637B1 EP 96914896 A EP96914896 A EP 96914896A EP 96914896 A EP96914896 A EP 96914896A EP 0821637 B1 EP0821637 B1 EP 0821637B1
Authority
EP
European Patent Office
Prior art keywords
cutter
cutter head
stop
holder
retaining strip
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
EP96914896A
Other languages
German (de)
English (en)
Other versions
EP0821637A1 (fr
Inventor
Karl-Heinz Kellner
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.)
Leitz GmbH and Co KG
Original Assignee
Leitz GmbH and Co KG
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 Leitz GmbH and Co KG filed Critical Leitz GmbH and Co KG
Publication of EP0821637A1 publication Critical patent/EP0821637A1/fr
Application granted granted Critical
Publication of EP0821637B1 publication Critical patent/EP0821637B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
    • B27G13/04—Securing the cutters by mechanical clamping 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1934—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/1938—Wedge clamp element
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/19—Rotary cutting tool
    • Y10T407/1906—Rotary cutting tool including holder [i.e., head] having seat for inserted tool
    • Y10T407/1934—Rotary cutting tool including holder [i.e., head] having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/1938—Wedge clamp element
    • Y10T407/194—Resilient clamp jaw
    • 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
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y10T407/2272—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder
    • Y10T407/2282—Cutters, for shaping including holder having seat for inserted tool with separate means to fasten tool to holder including tool holding clamp and clamp actuator
    • Y10T407/2284—Wedge clamp element

Definitions

  • the invention relates to a cutter head, in particular a planer cutter head, with the features of the preamble of claim 1.
  • Knife heads of this type are known.
  • DE 27 08 687 describes one of them Cutter head for processing wood with a supporting body, which runs along its circumference at equal intervals with several holders for knives is provided.
  • the recordings are open radially outwards and extend parallel to the axis of rotation of the supporting body.
  • pressure jaw movable to the respective knife are provided.
  • the pressure jaws move due to the centrifugal force radially outwards.
  • the pressure jaws are guided that during this movement the knives are moved between the knives and the pressure jaw attached retaining bar, which is relative to the pressure jaw and is movable to the holder, clamp against a stop of the holder.
  • the retaining strip engages under the stop of the receptacle with formation a line-shaped contact point in an approximately radial direction.
  • the knives for example for resharpening, in a radial Direction can be taken.
  • the cutter head described still needs to be used.
  • the invention is therefore based on the object of a cutter head at the outset to improve described type. This object is achieved according to the invention solved by a cutter head with the features of claim 1.
  • stop as interchangeable Stop bar is designed to resize the radially outside stop bar lying rake face of the knife and / or the chip space vary too can.
  • the knife advantageously has a groove in its chest, the depth of which is selected equal to this maximum material removal.
  • the support body For weight reduction, especially with long cutter heads, it is from Advantage to make the support body from aluminum.
  • a planer knife head for processing wood or plastic has one from a cylinder manufactured support body 1 with a central through hole 3 is provided for receiving a shaft.
  • the center of the Through hole 3 defines the axis of rotation of the support body 1.
  • the weight of the support body 1 is preferably made of aluminum:
  • the support body 1 has two mutually opposite, groove-shaped receptacles 5, which radially outwards are open and extend parallel to the axis of rotation of the support body 1.
  • the Planer cutter head according to the invention can also have a different number of recordings have, with the recordings in order to avoid imbalances equal distances in the circumferential direction are provided.
  • Each existing receptacle 5 contains a device for clamping each of a knife 7.
  • a stop bar 9 is provided which by means of a strip-shaped projection, which preferably extends over the entire length of the stop bar 9 extends, engages in a corresponding groove-like recess of the support body 1 and by screws not shown in the drawing with the latter is firmly but releasably connected.
  • the cutter head according to the invention can also be made in one piece with the stop bar 9 the support body 1 may be formed.
  • the stop bar 9 serves on the one hand as a stop the clamping device for the knife 7.
  • the stop bar 9 with its radially outside lying part of the boundary of the chip space 15, which in the direction of rotation before the recording 5 as a groove in the outer jacket of the support body 1 is formed.
  • the cutting edge 7' of the Knife is through the end of the rake face 13 'with the greatest distance to the axis of rotation of the support body 1, which thus also the Radius of the flight circle defined.
  • the chip break occurs at the transition between the rake face 13 'and the stop bar 9.
  • the chip flow takes place in into the chip space 15.
  • each receptacle 5 lagging in the direction of rotation lies as another Part of the clamping device on a pressure jaw 17, which along this Flank is movable in the radial direction with at least one component.
  • the pressure jaw 17 has the shape of a wedge, which with its tapering End of the receptacle 5 faces outwards.
  • To move the Pressure jaw 17 along the flank of the receptacle 5 is at least one clamping screw 19 provided, which is in contact with the pressure jaw 17 so that the pressure jaw 17 with play by means of this clamping screw 19 both after is movable inside and out.
  • the clamping screw 19 assigns For this purpose, an annular groove in her head, in which with little play a projection of the pressure jaw 17 engages.
  • the pressure jaw 17 In the biased state of the Clamping device for the knife 7, which is described below, is located the pressure jaw 17 in a radially outer position.
  • a retaining strip 21 as Knife holder and another part of the clamping device arranged.
  • the retaining bar 21 in the Prestressed state, the retaining bar 21 is on its lagging in the direction of rotation Side flat on the pressure jaw 17.
  • To position the Knife 7 has the retaining strip 21 on its leading side in the direction of rotation a positioning groove 23 in which the knife 7 with a positioning projection 25 takes hold. Otherwise, the retaining strip 21 lies flat on the back 27 of the Knife 7.
  • the assignment of the two positioning elements 23 and 25 to Knife 7 and the retaining strip 21 could also be exactly the opposite.
  • the positioning groove 23 and the positioning projection 25 for absorbing part of the centrifugal forces of the knife 7 rotating cutter head. They are therefore shaped so that in the biased Condition the knife 7 in the radial direction to the outside Holding bar 21 abuts and is immovable relative to it, that is in a defined Position is held.
  • the retaining bar 21 is shaped so that it engages under the stop bar 9 in the radial direction. Thereby lies in the prestressed Condition of the retaining strip 21 with a positioning surface oriented radially outwards 29 flat on a radially inwardly oriented contact surface 31 the stop bar 9. As a result, the holding bar 21 also holds the knife 7 in a defined position to the stop bar 9.
  • the contact point between the positioning surface 29 and the stop surface 21 is a plane which runs parallel to the free surface 33 of the knife 7.
  • the clamping device for the Knife 7 transferred from the pretensioned state to the released state which is described below.
  • the tension screw takes place 19 first the pressure jaw 17 radially inwards with.
  • one or more compression springs 35 are provided between the pressure jaw 17 and the retaining strip 21, one or more compression springs 35 are provided.
  • Each compression spring 35 is supported in a blind hole in the pressure jaw 17 and starts with one end on the retaining strip 21. This starting point lies radially further inside than that through the positioning surface 29 and Contact surface 31 formed contact point between the holding bar 21 and the Stop bar 9.
  • the movement of the pressure jaw 17 comes inwards the compression spring 35 to act so that it has a torque on the retaining bar 21 exercises.
  • the holding bar 21 pivots about an edge 29 ' Edge of the positioning surface 29.
  • the edge 29 ' is that part of the holding strip 21, which engages under the stop bar 9 the furthest.
  • the swivel movement the retaining bar 21 is due to the location of the attachment point of the compression spring 35 so directed that the retaining strip 21 away from the knife 7 on the Pressure jaw 17 moves too. With this swiveling movement the Positioning surface 29 from the contact surface 31, however the edge 29 'remains in linear contact with the contact surface 31.
  • the dimensions, angles, Movement paths or swivel ranges of the positioning groove 23, the positioning projection 25, the pressure jaw 17 and the retaining bar 21 are chosen so that the holding bar 21 can pivot into a position in which it can the knife 7th releases, and this can be removed radially outwards.
  • the removed knife 7 can be turned and reinserted, if the knife 7 is symmetrical with respect to a longitudinal plane.
  • the knife 7 therefore preferably has an approximately trapezoidal shape Cross-section.
  • the removed knife 7 can be resharpened, being sanded on his chest 13.
  • the knife 7 has a groove 37 on its chest 13 on, the bottom of which defines the level up to which the breast 13 is ground may be.
  • the contact surface 31 and the positioning surface 29 in the tensioned and prestressed Condition is ensured that even after grinding the chest 13 because of Displacement of the retaining strip 21 parallel to the free surface 33 when the Distance between the new cutting edge 7 'and the axis of rotation of the support body 1, i.e. the new radius of the flight circle, corresponds to the old radius.
  • the knife 7, the stop bar 9, the pressure jaw 17 and the holding bar 21 extend exactly like the receptacle 5 parallel to the axis of rotation of the support body 1, preferably over its entire length. For making this Parts, it is advisable to use profile bars and to the correct length saw off.

Claims (8)

  1. Tête porte-lames, en particulier pour raboteuse, dont le corps porteur présente au moins un logement, ouvert dans le sens radial vers l'extérieur, pour un couteau, une mâchoire à pression, mobile par rapport au corps porteur, étant prévue dans chaque logement, laquelle mâchoire tend le couteau dans le sens radial vers l'extérieur vers une butée du logement, lors d'un mouvement avec au moins une composante, une baguette de retenue (21) étant disposée entre le couteau (7) et la mâchoire à pression (17), laquelle baguette est mobile par rapport à la mâchoire à pression (17) et à la butée (9) du logement (5), et qui libère le couteau (7) pour un prélèvement dans le sens radial vers l'extérieur, lors d'un mouvement de la mâchoire à pression (17) vers l'intérieur, et la baguette (21) saisissant par-dessous la butée (9) du logement (5) dans le sens radial en formant un point de contact au moins linéaire, caractérisée en ce que, entre la baguette de retenue (21) et la mâchoire à pression (17), il est prévu au moins un ressort de pression (35), qui est disposé, par rapport au point de contact entre la baguette de retenue (21) et la butée (9) du logement (5), dans le sens radial un peu plus à l'intérieur sur la baguette de retenue (21).
  2. Tête porte-lames selon la revendication 1, caractérisée en ce qu'il est prévu entre le couteau (7) et la baguette de retenue (21) des éléments de positionnement (23, 25), qui maintiennent lors du serrage le couteau (7) et la baguette de retenue (21) dans une position définie l'un par rapport à l'autre.
  3. Tête porte-lames selon la revendication 1 ou 2, caractérisée en ce que, lorsque le couteau (7) est tendu, le point de contact entre la baguette de retenue (21) et la butée (9) du logement (5) forme un plan qui est parallèle à la surface libre (33) du couteau (7).
  4. Tête porte-lames selon l'une quelconque des revendications 1 à 3, caractérisée en ce que, pour chaque mâchoire à pression (17), il est prévu au moins une vie de serrage (19), avec laquelle la mâchoire à pression (17) peut être déplacée dans le sens radial aussi bien vers l'intérieur que vers l'extérieur.
  5. Tête porte-lames selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la butée du logement (5) est conçue comme une baguette de butée (9) interchangeable.
  6. Tête porte-lames selon la revendication 5, caractérisée en ce que la grandeur de la face de coupe (13') et/ou la forme et/ou l'état de surface du logement des copeaux (15) sont modifiables au moyen de différentes baguettes de butée (9).
  7. Tête porte-lames selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le couteau (7) présente une rainure (37) dans sa face (13).
  8. Tête porte-lames selon l'une quelconque des revendications 1 à 7, caractérisée en ce que le corps porteur (1) est à base d'aluminium.
EP96914896A 1995-04-15 1996-04-11 Tete porte-lames, en particulier pour raboteuse Expired - Lifetime EP0821637B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE29506458U DE29506458U1 (de) 1995-04-15 1995-04-15 Messerkopf, insbesondere Hobelmesserkopf
DE29506458U 1995-04-15
PCT/EP1996/001539 WO1996033056A1 (fr) 1995-04-15 1996-04-11 Tete porte-lames, en particulier pour raboteuse

Publications (2)

Publication Number Publication Date
EP0821637A1 EP0821637A1 (fr) 1998-02-04
EP0821637B1 true EP0821637B1 (fr) 1998-09-09

Family

ID=8006902

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96914896A Expired - Lifetime EP0821637B1 (fr) 1995-04-15 1996-04-11 Tete porte-lames, en particulier pour raboteuse

Country Status (10)

Country Link
US (1) US5904193A (fr)
EP (1) EP0821637B1 (fr)
JP (1) JP2869193B2 (fr)
CN (1) CN1064578C (fr)
AT (1) ATE170792T1 (fr)
BR (1) BR9608006A (fr)
DE (2) DE29506458U1 (fr)
ES (1) ES2120812T3 (fr)
MY (1) MY116388A (fr)
WO (1) WO1996033056A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016055044A1 (fr) * 2014-10-10 2016-04-14 Leitz Gmbh & Co. Kg Tête de lame permettant l'usinage de matériau par enlèvement de copeaux et lame servant audit usinage

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DE19536559A1 (de) * 1995-10-02 1997-04-03 Bosch Gmbh Robert Hobelmaschine, insbesondere Handhobelmaschine
DE19717702B4 (de) * 1997-04-26 2006-04-20 Robert Bosch Gmbh Handhobelmaschine
DE19835724B4 (de) * 1998-08-07 2007-04-26 Robert Bosch Gmbh Hobelkopf
DE19835725B4 (de) * 1998-08-07 2016-08-04 Robert Bosch Gmbh Hobelkopf
SE514028C2 (sv) * 1998-10-27 2000-12-11 Sandvik Ab Skär för roterbara skärverktyg
DE19858740C1 (de) * 1998-12-18 2000-06-08 Paul Guels Maschinenbau Messerwerkzeugkopf sowie Messer und Messerhalter hierfür
US6968879B2 (en) * 2001-07-30 2005-11-29 Key Knife, Inc. Knife and apparatus for clamping a knife
CA2368297C (fr) * 2002-01-17 2011-04-12 Iggesund Tools Ab Couteau a travailler le bois polyvalent et dispositif de serrage
FI20021248A0 (fi) * 2002-06-26 2002-06-26 Metso Paper Inc Terän kiinnitysmenetelmä
US7011261B2 (en) * 2004-07-20 2006-03-14 Chen Yu Machinery Industry Co., Ltd. Cutting tool of a cutting machine used for cutting plastic materials into granules
US7517178B2 (en) * 2005-04-01 2009-04-14 Great Lakes Custom Tool Mfg., Inc. Rotary cutter head
US7735531B2 (en) * 2006-08-10 2010-06-15 Les Produits Gilbert Inc. Planing head for a planing machine and method of manufacture thereof
US8033308B2 (en) * 2007-01-08 2011-10-11 Key Knife, Inc. Double-sided wear insert for a chipper
US20090200411A1 (en) * 2008-02-07 2009-08-13 Stager Bradley R Chipping knife and assembly
IL195601A (en) * 2008-11-30 2013-11-28 Iscar Ltd Daphne mechanism
JP6538049B2 (ja) * 2013-11-21 2019-07-03 ファム 波形切刃の刃組立体及びそれを備える切断システム
CH709488A1 (de) * 2014-04-14 2015-10-15 Oertli Werkzeuge Ag Werkzeugkopf und Verfahren zum Einsetzen und Spannen einer Schneidplatte, sowie Schneidplatte.
US9802334B2 (en) 2014-07-10 2017-10-31 Kimwood Corporation Cutter head assembly for a knife planer
CN105619550A (zh) * 2014-11-26 2016-06-01 广西大学 一种铣刀
CN105437324A (zh) * 2015-12-29 2016-03-30 镇江新区利达工具有限公司 一种可换式螺旋刃刀头
TWM531893U (zh) * 2016-06-01 2016-11-11 Shinmax Industry Co Ltd 刀軸

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016055044A1 (fr) * 2014-10-10 2016-04-14 Leitz Gmbh & Co. Kg Tête de lame permettant l'usinage de matériau par enlèvement de copeaux et lame servant audit usinage
DE102014015199A1 (de) 2014-10-10 2016-04-14 Leitz Gmbh & Co. Kg Messerkopf zur spanenden Bearbeitung von Werkstoffen und Messer hierfür

Also Published As

Publication number Publication date
ATE170792T1 (de) 1998-09-15
CN1064578C (zh) 2001-04-18
BR9608006A (pt) 1999-01-05
ES2120812T3 (es) 1998-11-01
CN1181725A (zh) 1998-05-13
DE59600548D1 (de) 1998-10-15
EP0821637A1 (fr) 1998-02-04
JPH10507421A (ja) 1998-07-21
WO1996033056A1 (fr) 1996-10-24
DE29506458U1 (de) 1995-07-06
JP2869193B2 (ja) 1999-03-10
MY116388A (en) 2004-01-31
US5904193A (en) 1999-05-18

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