EP0178508A1 - Fixation de lame de porte-outil pour défibreuse à bois - Google Patents

Fixation de lame de porte-outil pour défibreuse à bois Download PDF

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Publication number
EP0178508A1
EP0178508A1 EP19850112170 EP85112170A EP0178508A1 EP 0178508 A1 EP0178508 A1 EP 0178508A1 EP 19850112170 EP19850112170 EP 19850112170 EP 85112170 A EP85112170 A EP 85112170A EP 0178508 A1 EP0178508 A1 EP 0178508A1
Authority
EP
European Patent Office
Prior art keywords
knife
ribs
full
chip
knife holder
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
EP19850112170
Other languages
German (de)
English (en)
Other versions
EP0178508B1 (fr
Inventor
André Besse
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.)
DIMETAL
Original Assignee
Dimetal
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 Dimetal filed Critical Dimetal
Publication of EP0178508A1 publication Critical patent/EP0178508A1/fr
Application granted granted Critical
Publication of EP0178508B1 publication Critical patent/EP0178508B1/fr
Expired 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
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/005—Tools therefor

Definitions

  • the invention relates to a knife holder for the knife head of a wood-cutting machine according to the preamble of claim 1.
  • This known knife adhesion (cf. DE-AS 1207067) has the disadvantage that fine wood dust penetrates between the knife breast and knife breast plate in the area facing the wood.
  • very hard baking forms with a penetration depth of up to max. about 10 mm, because the two screwed elements spring open slightly as soon as they are no longer subject to the contact pressure of the centrifugal force within the cutter head.
  • the connecting screws Before regrinding the full-cut knives, the connecting screws must be unscrewed, the two elements separated and carefully cleaned. Such work is particularly time consuming.
  • the object of the invention is to improve the known knife holder so that no baking can form between the knife breast and knife breast plate if both elements spring open against each other and the knife breast plate should no longer be subject to wear.
  • the invention solves this problem by the features specified in the characterizing part of claim 1. While in the known knife breast plates the distance between the cutting edge of the knife and the upper edge of the knife chest slope is approximately 4 mm, in the embodiment according to the invention this distance is significantly increased in order to make room for the chip drainage plate which projects above the knife breast plate and has two leaf springs in an adjustable foot is anchored in the reason of fairness. However, the leaf springs can also be arranged so as to be adjustable or replaceable if regrinding of the chip discharge surface on the chip discharge strip makes this necessary
  • the wooden supports are adjustably interchangeable and, if necessary, can be regrinded in a manner known per se in the chip drain bar
  • the knife breast plate corresponds to the known embodiment with two elongated holes for adjusting the knife board in connection with two connecting screws.
  • the correspondingly pre-bent leaf springs push the contact surface of the chip drain bar off the bevel of the knife breast plate to such an extent that the latter can be removed from the knife head together with its knife in the radial direction.
  • the particular advantages of the knife adhesion according to the invention are seen in the fact that the knife breast plate is completely protected from wear by the overlapping chip drainage strip, while at the same time preventing dust build-up between the knife breast and the knife breast plate, so that cleaning of the inner surfaces before regrinding is not necessary.
  • the chip drain bar also prevents the knife breast plate from flying out of the knife head in the event of incorrect operation.
  • the full cut knife 1 bears with its back against a cutter head cheek 4 or a wear plate connected to it, not shown in the drawing.
  • the width of the knife breast plate 5 is considerably reduced.
  • Your bevel 20 does not serve as a chip discharge surface.
  • the knife breast plate 5 is contactlessly opposite a chip discharge strip 10 which overlaps it, but which in turn lies against the chest of the full-cut knife 1 or its scoring ribs 2 with a contact surface 18.
  • the chip drain bar 10 is anchored in an adjustable foot 13 in the base of the measuring nut 21 by means of two leaf springs 11.
  • the leaf springs 11 can be arranged to be adjustable or interchangeable, if a regrinding of the chip flow surface 12 on the clamping makes progress bar 1 0 so require.
  • the chip discharge surface 12 can be reground several times.
  • the knife breast plate 5 is supported on adjustable stop screws 16 with lock nuts 17.
  • the knife breast plate 5 is provided with corresponding grooves for receiving the scoring ribs 2.
  • the wooden supports 14 arranged on the chip drain bar 10 can be introduced into the chip drain bar 10 in an adjustable, exchangeable and, if necessary, regrindable manner.
  • the wooden supports 14 go smoothly into the wooden supports 15 arranged in the centrifugal wedge 8.
  • the depressor (not shown in the drawing) is actuated, the centrifugal wedge 8 is pressed inwards against the resistance of its spring assembly 9, the two correspondingly pre-bent leaf springs 11 pressing the contact surface 18 of the chip removal strip 10 so far from the slope 20 of the knife breast plate 5 that the latter can be removed together with the full cut knife 1 in the radial direction.
  • Any slight dust build-up on the contact surface 18 of the chip removal strip 10 or in its grooves intended for receiving the scoring ribs 2 can be seen particularly well in the knife removal position. Baking of this type is carried out together with all other soiled surfaces of the knife holder, the cleaning of which
  • Baking in the area of the knife breast or the scoring ribs 2 can be removed in the same way or by mechanical action (brushing machine).

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Food-Manufacturing Devices (AREA)
  • Sampling And Sample Adjustment (AREA)
EP19850112170 1984-10-15 1985-09-25 Fixation de lame de porte-outil pour défibreuse à bois Expired EP0178508B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843437688 DE3437688C1 (de) 1984-10-15 1984-10-15 Messerhalterung für den Messerkopf einer Holzzerspanungsmaschine
DE3437688 1984-10-15

Publications (2)

Publication Number Publication Date
EP0178508A1 true EP0178508A1 (fr) 1986-04-23
EP0178508B1 EP0178508B1 (fr) 1988-11-30

Family

ID=6247892

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19850112170 Expired EP0178508B1 (fr) 1984-10-15 1985-09-25 Fixation de lame de porte-outil pour défibreuse à bois

Country Status (2)

Country Link
EP (1) EP0178508B1 (fr)
DE (1) DE3437688C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122045A1 (fr) * 2000-02-01 2001-08-08 Eschlböck Maschinenbau GmbH Coteau pour machines à déchiqueter du bois et du buisson

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0265622B1 (fr) * 1986-10-28 1993-06-02 Oertli Werkzeuge Ag Arbre porte-lames
DE3823643A1 (de) * 1988-07-13 1990-01-18 Hombak Maschf Gmbh Messerhalterung fuer den messerkopf einer holzzerspanungsmaschine
AT397629B (de) * 1990-02-05 1994-05-25 Boehler Ybbstalwerke Einrichtung zur messerbefestigung an umlaufenden hackscheiben von (holzspan)-hackmaschinen sowie (einweg-)hackmesser hiefür
US9802334B2 (en) 2014-07-10 2017-10-31 Kimwood Corporation Cutter head assembly for a knife planer
CN105397854A (zh) * 2015-12-24 2016-03-16 平湖英厚机械有限公司 带纸屑回收功能的可调三面刃铣背刀

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT377225B (de) * 1982-01-21 1985-02-25 Ver Edelstahlwerke Ag Messerwelle zur herstellung von flaechigen holzspaenen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1207067B (de) * 1963-02-05 1965-12-16 Paul Kirsten Dr Ing Messer fuer die Holzzerspanung
DE3018359C2 (de) * 1980-05-14 1983-09-22 Hombak Maschinenfabrik Gmbh & Co Kg, 6550 Bad Kreuznach Messerwelle zur Erzeugung flächiger Holzspäne

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT377225B (de) * 1982-01-21 1985-02-25 Ver Edelstahlwerke Ag Messerwelle zur herstellung von flaechigen holzspaenen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1122045A1 (fr) * 2000-02-01 2001-08-08 Eschlböck Maschinenbau GmbH Coteau pour machines à déchiqueter du bois et du buisson

Also Published As

Publication number Publication date
DE3437688C1 (de) 1986-01-23
EP0178508B1 (fr) 1988-11-30

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