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WO2014067740A1 - Anneau de coupe pour outil d'enlèvement de copeaux à anneau de coupe - Google Patents

Anneau de coupe pour outil d'enlèvement de copeaux à anneau de coupe Download PDF

Info

Publication number
WO2014067740A1
WO2014067740A1 PCT/EP2013/070573 EP2013070573W WO2014067740A1 WO 2014067740 A1 WO2014067740 A1 WO 2014067740A1 EP 2013070573 W EP2013070573 W EP 2013070573W WO 2014067740 A1 WO2014067740 A1 WO 2014067740A1
Authority
WO
WIPO (PCT)
Prior art keywords
knife
knife carrier
recesses
wear plate
carrier according
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.)
Ceased
Application number
PCT/EP2013/070573
Other languages
German (de)
English (en)
Inventor
Wolfgang Holzer
Sven Zimmer
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.)
Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Original Assignee
Siempelkamp Maschinen und Anlagenbau 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 Siempelkamp Maschinen und Anlagenbau GmbH and Co KG filed Critical Siempelkamp Maschinen und Anlagenbau GmbH and Co KG
Publication of WO2014067740A1 publication Critical patent/WO2014067740A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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 carrier for a knife ring of a knife ring chipper, wherein at least one knife and at least one wear plate are attached to the knife carrier, wherein the wear plate is fastened by means of fastening screws to the knife carrier and rests with its the knife carrier facing backs against the knife carrier and with their front sides facing away from the knife carrier forms the inner surface of the knife ring.
  • the invention also relates to a knife ring with such knife carriers.
  • Messerringzerspaner serve the production of chips or the like material for the production of wood-based panels, z. As chipboard or the like. The raw wood is z. B. as bulk material, for. B. in the form of wood chips, or as long wood supplied.
  • Such a Messerringzerspaner has a knife ring to which a plurality of blades on the one hand and wear plates on the other hand are attached.
  • the knife ring z.
  • Example be composed of two spaced axially spaced annular discs, between which a plurality of knife carriers are attached, said knife carrier are distributed uniformly over the circumference of the annular discs in the rule.
  • the wear plates then form as it were the inner surface of the knife ring, while the knife protrude between each pairwise adjacent wear plates into the interior.
  • the Messerringzerspaner has - if it is intended for the cutting of wood chips - in addition to the outer rotating blade ring within the knife ring also rotatably driven racket wheel, which is also referred to as a rotor, while on the (outer) blade ring, the knives are attached are on attached to the (inner) racquet wheel vanes,
  • the present invention is primarily a knife ring such Messerringzerspaners or the knife carrier of such a knife ring.
  • a Messerringzerspaner of the type described in the embodiment as Langholzzerspaner is known for example from DE 35 17 236 A1.
  • the wear plates are clamped in the known embodiment usually by means of fastening screws against the blade carrier.
  • the wear plates themselves are provided with through threaded holes in which the fastening screws are screwed in from the direction of the knife carrier.
  • the problem in this context is the fact that the wear plates are usually made of hardened steel in practice. Since the introduction of the thread in the hardened steel causes problems, the hardening is usually carried out after the introduction of the thread. This is in turn associated with the risk that form cracks in the wear plates in the field of thread.
  • EP 0 481 952 B1 has proposed the replaceable wear plates, which in practice are also referred to as wear shoes, as a composite component consisting of a base made of a tough material and a support member made of a material having a high wear resistance, wherein the base part and support part are flat with one another are connected and the base part has a fastening element, by means of which the wearing part is releasably secured to the component.
  • the fastener is usually a threaded bolt, which by arc welding or butt welding to the wear shoe
  • the invention has for its object to provide a knife carrier or a knife ring for a Messerringzerspaner of the type described above, which allows a simple and stable structure a proper and easy attachment of the wear plates.
  • the invention teaches in a knife carrier for a knife ring of the type described above, that the wear plate has one or more recesses open to the rear, in which one or more holding parts are positively inserted, wherein the holding parts are provided with threaded holes in which the fastening screw is screwed in such that the wear plate is clamped in the course of the introduction of the fastening screw in the holding parts against the blade carrier.
  • the invention is based on the recognition that it is expedient not to screw the mounting screws directly into the wear shoes or wear plates themselves, but that the screwing takes place with the interposition of separate holding parts.
  • This has the advantage that in the wear plates themselves, which are preferably made of hardened steel, no thread must be introduced. Rather, the threads required for fixing are introduced into the separate holding parts, which are particularly preferred as separate moldings made of unhardened steel, for. B. cold drawn, uncured molded parts are formed.
  • molded parts on the one hand and the corresponding recesses on the other hand are designed in such a way that the molded parts can be positively inserted into the recesses and that the wear plates can then be inserted in the course of the introduction of the fasteners.
  • the knife ring according to the invention or the components of the knife ring according to the invention are therefore characterized by a simple construction and simple assembly with high durability.
  • the recesses have a depth which is less than the thickness of the wear plates. Consequently, the recesses do not completely penetrate the wear plates, but are recesses which are open only on the rear side of the wear plate and possibly also in the side regions.
  • the front sides of the wear plates are particularly preferably completely closed, so that they form a uniform surface without disturbing openings or recesses.
  • the recesses are preferably formed as extending over the width or almost the width of the wear plate extending grooves. This embodiment has the advantage that the moldings can be pushed laterally into the grooves. In this way, a simple installation succeeds at the same time immaculate positive fixation in the course of screwing.
  • the recesses at least partially a
  • the recesses or grooves can taper conically (in cross-section). Alternatively or additionally, however, the recesses can also taper in a stepped manner.
  • the moldings are then formed in a corresponding manner.
  • the moldings may also have a (regionally) tapered towards the blade carrier cross-section, z. B. a conical cross section and / or a step-shaped cross-section. Incidentally, it is within the scope of the invention, if not only the wear plates themselves have recesses, but if the knife carrier on their wear plates facing undersides also recesses, for. B.
  • the holding parts or moldings also partially engage in these recesses of the knife carrier.
  • These recesses can also be away from their opening, d. H. to the bottom of the recess taper, z. B. conical and / or stepped.
  • the molded part engages in the assembled state on the one hand partially in the recess of the wear plate and on the other hand partially in the recess of the knife carrier. So not only a good fixation but at the same time a suitable positioning can be ensured.
  • the knife carrier or knife ring can be used in principle for Messerringzerspaner for wood chips or Messerringzerspaner in the embodiment as Langholzzerspaner. It is customary in the case of long wood chips, in particular, for the knives to be braced against the wear plates with suitable holding means, namely with so-called "flywheel tension".
  • suitable holding means namely with so-called "flywheel tension”.
  • a centrifugal wedge is held with the interposition of spring assemblies on the knife carrier, the centrifugal wedge presses against a flap on a knife holder on which the knife is attached or the knife
  • the knife-holding plate can be designed as a chip-dividing strip or chipbreaker strip, so that then the number of parts is reduced.
  • the flap presses with the interposition of the knife holder plate directly on the knife, the knife rests directly against the wear plate.
  • FIG. 1 shows a knife ring for a Messerringzerspaner in a perspective view
  • FIG. 2 shows a detail of the article according to FIG. 1 (section), FIG.
  • FIG. 3 shows a modified embodiment of the article according to FIG. 2.
  • a knife ring 1 is shown for a Messerringzerspaner for the removal of wood or the like. This may be a knife ring for a knife ring chipper in the embodiment as a long wood chipper, for. B. for the production of OSB chips. Details are not shown in the figures.
  • the knife ring 1 has two ring disks 2 arranged at an axial distance from each other. Between the two annular discs a plurality of knife carriers 3 are attached. It can be seen in the figure that these knife carriers 3 are distributed uniformly over the circumference of the knife ring 1. Knife 4 and, on the other hand, wear plates 5 are attached to the knife carriers 3.
  • the wear plates 5 are fastened by means of fastening screws 13 to the knife carriers 3. It can be seen in particular in FIG. 2 that the wear plates 5, with their rear sides 6 facing the knife carrier 3, abut against the contact surface of the knife carrier and, with their front sides 8 facing away from the knife carrier 3, form the inner surface of the knife ring in the mounted state. Incidentally, it can be seen that in the mounted state, the blades 3 protrude between each two adjacent wear plates 5 into the interior of the blade ring. While the fastening screws 6 were screwed in the prior art directly into threaded holes in the wear plates, additional holding parts 9 are provided as molded parts in the invention, which are inserted positively in recesses 10 of the wear plates 5.
  • the wear plates 5 are consequently provided with recesses 10 which are open towards the rear 6 and into which the holding parts 9 are inserted in a form-fitting manner.
  • the holding parts are in turn provided with threaded holes 1 1, in which the fastening screws 6 are screwed.
  • the recesses 10 on the one hand and the moldings 9 on the other hand are matched in shape to one another in such a way that the wear plates 5 are braced against the knife carrier 3 in the course of introducing the fastening screws 13 into the moldings.
  • the recesses 10 have a cross-section that narrows towards the opening.
  • the recesses 10 taper conically in cross section.
  • the moldings are designed accordingly, they also have a conically tapered cross-section.
  • the recesses 10 have a depth T which is less than the thickness D of the
  • Wear plates is.
  • the recesses 10 consequently do not completely penetrate the wear plates 5, but they are only "open on one side" so that the front surfaces 8 of the wear plates, which form the inner surface, are formed continuously without disturbing openings.
  • the knife carriers 3 are also provided with corresponding recesses 12, which are aligned with the recesses 10 of the wear plates.
  • These recesses 12 of the blade carrier 3, according to FIG. 2 have a tapering cross-section, specifically a cross-section tapering away from the contact surface 7.
  • These recesses 12 are formed tapered in the embodiment of FIG. 2.
  • the recesses 12 in the knife carriers are required to provide the molded parts with sufficient space for fixing. In addition, as it were a positioning in the tangential direction.
  • Fig. 3 shows a modified embodiment.
  • the rear recesses 10 of the wear plates 5 are also formed tapered.
  • the moldings 9 are formed only partially conically tapered and beyond stepwise shaped. Accordingly, the recesses 12 are not tapered in the blade carriers 3, but they have over the depth of a constant width. Also in this embodiment, a perfect fixation of the wear plates 5 in
  • the recesses 10 are designed as grooves extending over the width of the blade carrier 3.
  • the moldings 9 can thus be inserted laterally into these grooves.
  • the knife carrier 3 between the annular discs 2 are usually fastened by means of screws. In the course of assembly, the mold parts 9 can consequently be used before one or both annular disks are screwed to the knife carriers 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

L'invention concerne un porte-lames (3) destiné à un anneau de coupe (2) d'un outil d'enlèvement de copeaux à anneau de coupe, des lames (4) et des plaques d'usure (5) étant fixés au porte-lames (3), les plaques d'usure (5) étant fixées au porte-lames (3) au moyen de vis de fixation (13) et venant contre le porte-lames (3) avec leur côté arrière (7) orienté vers le porte-lames et formant, lorsque l'anneau de coupe est monté, avec leur côté frontal opposé au porte-lames (3), la surface intérieure de l'anneau de coupe. Le porte-lames (3) se caractérise en ce que la plaque d'usure (5) présente au moins un évidement (10) ouvert vers le côté arrière (7), dans lequel une ou plusieurs pièces de retenue (9) sont insérées par complémentarité de forme, les pièces de retenue (9) présentant des trous taraudés (11) dans lesquels les vis de fixation (13) sont vissées de sorte que la plaque d'usure, lors de l'introduction des vis de fixation dans les pièces de retenue (9) ou pièces moulées, est sollicitée contre le porte-lames (3).
PCT/EP2013/070573 2012-10-29 2013-10-02 Anneau de coupe pour outil d'enlèvement de copeaux à anneau de coupe Ceased WO2014067740A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012110344.5A DE102012110344B4 (de) 2012-10-29 2012-10-29 Messerring für einen Messerringzerspaner
DE102012110344.5 2012-10-29

Publications (1)

Publication Number Publication Date
WO2014067740A1 true WO2014067740A1 (fr) 2014-05-08

Family

ID=49301498

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/070573 Ceased WO2014067740A1 (fr) 2012-10-29 2013-10-02 Anneau de coupe pour outil d'enlèvement de copeaux à anneau de coupe

Country Status (2)

Country Link
DE (1) DE102012110344B4 (fr)
WO (1) WO2014067740A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115365899B (zh) * 2022-10-20 2023-01-10 亚联机械制造(唐山)有限公司 一种环式刨片机刀具用自动磨刀机

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE178729C (fr) *
US3580520A (en) * 1968-10-29 1971-05-25 Stedman Foundry And Machine Co Breaker plate assembly for a disintegrator
DE3146861A1 (de) * 1981-11-26 1983-06-01 Hombak Maschinenfabrik Gmbh & Co Kg, 6550 Bad Kreuznach Verschleissschuh fuer einen messerringzerspaner
DE3517236A1 (de) 1985-05-13 1986-11-13 Pallmann Maschinenfabrik GmbH & Co KG, 6660 Zweibrücken Messerhalterung an messerringen durch fliehkeil
DE3721457A1 (de) * 1987-06-30 1989-01-12 Adolf Spoth Stahlbau Maschinen Doppelwendelmischer
DE3907816A1 (de) * 1989-03-10 1990-09-13 Salzgitter Maschinenbau Schleissplattenbefestigung i
EP0481952A1 (fr) * 1990-10-17 1992-04-22 BÖHLER YBBSTALWERKE G.m.b.H. Pièce soumise à l'usure remplaçable
WO1998016317A1 (fr) * 1996-10-15 1998-04-23 Christian Pfeiffer Maschinenfabrik Gmbh Revetement anti-usure, en particulier couche d'usure pour tubes broyeurs et/ou broyeurs a boulets
EP0990494A1 (fr) * 1998-09-28 2000-04-05 Dimetal Machine pour fragmenter des blocs d'une matiere organique naturelle ou synthetique, telle que du bois
DE19917645A1 (de) * 1999-04-19 2000-10-26 H I Pallmann Gmbh & Co Verschleißelement
WO2009008810A1 (fr) * 2007-07-10 2009-01-15 Metso Mineral (Wear Protection) Ab Élément d'usure formant doublure, et un agencement pour sa fixation celui-ci

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE178729C (fr) *
US3580520A (en) * 1968-10-29 1971-05-25 Stedman Foundry And Machine Co Breaker plate assembly for a disintegrator
DE3146861A1 (de) * 1981-11-26 1983-06-01 Hombak Maschinenfabrik Gmbh & Co Kg, 6550 Bad Kreuznach Verschleissschuh fuer einen messerringzerspaner
DE3517236A1 (de) 1985-05-13 1986-11-13 Pallmann Maschinenfabrik GmbH & Co KG, 6660 Zweibrücken Messerhalterung an messerringen durch fliehkeil
DE3721457A1 (de) * 1987-06-30 1989-01-12 Adolf Spoth Stahlbau Maschinen Doppelwendelmischer
DE3907816A1 (de) * 1989-03-10 1990-09-13 Salzgitter Maschinenbau Schleissplattenbefestigung i
EP0481952A1 (fr) * 1990-10-17 1992-04-22 BÖHLER YBBSTALWERKE G.m.b.H. Pièce soumise à l'usure remplaçable
EP0481952B1 (fr) 1990-10-17 1994-11-09 BÖHLER YBBSTALWERKE G.m.b.H. Pièce soumise à l'usure remplaçable
WO1998016317A1 (fr) * 1996-10-15 1998-04-23 Christian Pfeiffer Maschinenfabrik Gmbh Revetement anti-usure, en particulier couche d'usure pour tubes broyeurs et/ou broyeurs a boulets
EP0990494A1 (fr) * 1998-09-28 2000-04-05 Dimetal Machine pour fragmenter des blocs d'une matiere organique naturelle ou synthetique, telle que du bois
DE19917645A1 (de) * 1999-04-19 2000-10-26 H I Pallmann Gmbh & Co Verschleißelement
WO2009008810A1 (fr) * 2007-07-10 2009-01-15 Metso Mineral (Wear Protection) Ab Élément d'usure formant doublure, et un agencement pour sa fixation celui-ci

Also Published As

Publication number Publication date
DE102012110344A1 (de) 2014-04-30
DE102012110344B4 (de) 2015-06-18

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