EP0908238A1 - Dispositif déchiqueteur de matériaux - Google Patents

Dispositif déchiqueteur de matériaux Download PDF

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Publication number
EP0908238A1
EP0908238A1 EP97117275A EP97117275A EP0908238A1 EP 0908238 A1 EP0908238 A1 EP 0908238A1 EP 97117275 A EP97117275 A EP 97117275A EP 97117275 A EP97117275 A EP 97117275A EP 0908238 A1 EP0908238 A1 EP 0908238A1
Authority
EP
European Patent Office
Prior art keywords
roller
shredding
counter
cutting
cutting teeth
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.)
Withdrawn
Application number
EP97117275A
Other languages
German (de)
English (en)
Inventor
Anton Unterwurzacher
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.)
UNTERWURZACHER PATENTVERWERTUNGSGESELLSCHAFT mbH
Original Assignee
UNTERWURZACHER PATENTVERWERTUNGSGESELLSCHAFT mbH
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 UNTERWURZACHER PATENTVERWERTUNGSGESELLSCHAFT mbH filed Critical UNTERWURZACHER PATENTVERWERTUNGSGESELLSCHAFT mbH
Priority to EP97117275A priority Critical patent/EP0908238A1/fr
Publication of EP0908238A1 publication Critical patent/EP0908238A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/145—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with knives spaced axially and circumferentially on the periphery of a cylindrical rotor unit

Definitions

  • the invention relates to a device for comminuting material with a driven shredding roller, with high standing on the circumference Cutting teeth is provided, and with a fixed counter knife that with the cutting teeth interacting counter cutting teeth.
  • Such a device is, for example, EP-A 387 868, 419 919 or 514 327.
  • the arranged along at least one helix Cutting teeth have square knives that are mounted so that one Diagonal extends parallel to a roller radius, so that the counter knife one sawtooth-like contour.
  • the shredding roller is according to EP-A 387 868 cylindrical and provided with V-shaped incisions in which the Cutting teeth are fixed. Due to the saw toothing, the gap between the Counter knife and the crushing roller relatively large.
  • EP-A 419 919 and 514 327 is the generatrix of the shredding roller a zigzag line, so that the The gap between the shredding roller and the counter knife is the same throughout is narrow.
  • the gap is only at the point of the one just passing through Cutting tooth interrupted.
  • Certain soft or thermally softenable Materials for example with long-fiber components, plastic films, etc. are often not cut by the cutting teeth when they pass through the gap, but in the gap is drawn, and therefore arrive uncrushed or only partially crushed the exit side, on which usually a perforated screen or the like. is provided to the determine the maximum size of the shredded material. Components too large are conveyed back to the feed side by the roller, whereby they are also at not be crushed any further gap passage, but at the Secure the surface of the shredding roller.
  • the invention has now set itself the task of a shredding performance such device, especially for soft and fibrous materials improve.
  • the end sections of the Counter cutting teeth are offset in the direction of rotation of the shredding roller. This causes a two-step cut, with each cutting tooth first with the in substantially parallel to the crushing roller extending cutting edge of the Counter knife and then with the radially extending cutting edges the end sections of the counter cutting teeth, which are connected laterally on both sides cooperates.
  • the end portions of the counter cutting teeth are preferred by cutting plates formed, which are inserted into slots of the counter knife.
  • the device is provided with a perforated screen on the outlet side, then in one Another preferred embodiment provided that the webs of the perforated screen in the Layers of the inserts lie and thus the cross section of the immediate do not reduce the sieve holes behind it.
  • the device is of course with the other necessary for the function Provide construction elements, and therefore has a housing with a Hopper and possibly a feed slide on the inlet side as well a drive on. If applicable, the perforated screen and the counter knife can be swung out to the exit side.
  • a comminution device has a driven one Shredding roller 1, which is equipped with cutting teeth 2, with a fixed counter knife 21 cooperates, the material, in particular Waste material is crushed between the cutting edges.
  • the A perforated sieve is preferably provided to determine the material size determined, because too large parts are returned to the material input side. If the material size is immaterial, the perforated screen can also be omitted.
  • the comminution roller 1 has one for each cutting tooth 2 in particular cylindrical radial bore 3, in the respective radial plane the crushing roller 1 preferably only one or two offset by 180 ° Radial bores 3 are formed. In the area of each radial bore 3 there is one Inclined bore provided, which opens into the radial bore 3.
  • the radial bores 3 are on the comminution roller 1 along at least one helical line intended.
  • the cutting tooth 2 inserted into the radial bore 3 carries a means a fixing screw 4 fixed square indexable insert 9 and is fixed by a hold-down screw 7 inserted into the oblique bore.
  • each indexable insert 9 has, as before 2 shows a square basic shape with chamfered square corners, so that its outer contour is octagonal.
  • the inserted in the V-shaped support groove 14 Indexable insert 9 therefore has square diagonals that are parallel to Generating the shredding roller 1 and the radial bore 3.
  • the cutting edge is divided into sections 10, 11, the sections 11 created by the corner bevel about half as much long as the remaining sections 10 of the square side.
  • each indexable insert 9 serves the two inclined ones Sections 10, the intermediate section 11, which is parallel to the generator the shredding roller 1, and parts of the sections adjoining on both sides 11, which are perpendicular to the generatrix of the comminution roller 1. If the effective cutting edge of the insert 9 is worn, the screw 4 loosened and the plate rotated 180 ° can be fixed again. Is the cutting tooth 2 also worn or damaged, it can be loosened after the hold-down screw 7 removed and replaced.
  • the counter knife fixed to the frame of the shredder 21 is provided with counter-cutting teeth 22 and the cutting edge has sections 26 and 27, which correspond to the corresponding sections 10 and 11 of the Interacting inserts 9 cooperate.
  • Each counter cutting tooth 22 protrudes into the Space between two successive cutting teeth 2 and is with one Provided end portion 23 on which the two cutting edge portions 26th parallel to one another and perpendicular to the generatrix of the comminution roller 1 extend.
  • the counter knife 21 is preferred constructed in several parts and includes a carrier strip 24, the 22 per counter cutting tooth has a slot into which a cutting plate forming the free end section 23 is inserted.
  • the slots in the carrier bar 24 are sawtooth-like Cover strip 25 closed, on which the sections 27 of the cutting edge of the Counter knife 21 are formed.
  • the cutting edge of each counter cutting tooth 22 is therefore graduated: the sections 27 which correspond to the sections 10 of the Indexable insert 9 correspond, are closer to the cutting tooth 2 than that the end portions 23 formed portions 26.
  • the cutting edge of each Cutting tooth 2 therefore acts first with the rotation of the shredding roller Cutting edge on the cover strip 25 and only then with the cutting edge the cutting plates of the counter knife 21 together.
  • the end portions 23 engage in circumferential grooves 18 of the comminution roller 1, and are additionally guided in the circumferential grooves 18.
  • An exit side of the Crushing roller 1 and the counter knife 21 assigned perforated screen is so arranged that its webs between the sieve holes with the cutting plates 23rd of the counter knife 21 are aligned.
  • the shredding device can also be more than one counter knife 21 along the circumference of the Comminution roller 1 may be provided.
  • 3 and 4 show a second embodiment, the basic structure of which the execution 1 and 2 corresponds.
  • the shredding roller 1 there are two per cutting track Cutting teeth 2 are provided offset by 180 ° and the cutting edge of the Cutting teeth 2 extend exclusively perpendicular and parallel to the generatrix the comminution roller 1.
  • the respectively between two cutting teeth 2 or between two counter-cutting teeth 22 protruding from the counter knife 21 are limited to those inserted into the slots in the carrier strip 24 Inserts 23, which are preferably also in circumferential grooves 18 of the Engage shredding roller 1. 4, the cover plate 25 is not shown which in turn forms the sections 27 of the cutting edge of the counter knife 21 are in this embodiment parallel to the generatrix of the comminution roller 1 run.
  • each Cutting track a cutting chamber formed by the penetrating cutting tooth 2 is completed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP97117275A 1997-10-06 1997-10-06 Dispositif déchiqueteur de matériaux Withdrawn EP0908238A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97117275A EP0908238A1 (fr) 1997-10-06 1997-10-06 Dispositif déchiqueteur de matériaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97117275A EP0908238A1 (fr) 1997-10-06 1997-10-06 Dispositif déchiqueteur de matériaux

Publications (1)

Publication Number Publication Date
EP0908238A1 true EP0908238A1 (fr) 1999-04-14

Family

ID=8227446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97117275A Withdrawn EP0908238A1 (fr) 1997-10-06 1997-10-06 Dispositif déchiqueteur de matériaux

Country Status (1)

Country Link
EP (1) EP0908238A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078462A1 (fr) * 1999-06-21 2000-12-28 Werner Doppstadt Umwelttechnik Verwaltungsgesellschaft M.B.H. Fixation pour dents de rotor de machine a broyer
DE202005016672U1 (de) * 2005-10-23 2007-03-01 Doppstadt Calbe Gmbh Schneidwerkzeug für Zerkleinerungsvorrichtungen

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202369A (en) * 1963-01-16 1965-08-24 Steel Briquette Corp Rotary sheet metal tearing devices
US4176800A (en) * 1978-01-11 1979-12-04 Garbalizer Corporation Of America Materials reduction structure
US4394983A (en) * 1981-03-02 1983-07-26 Kaca Corporation Tire and refuse shredder
EP0387868A2 (fr) 1989-03-15 1990-09-19 Klöckner Maschinen- und Anlagenbau GmbH Dispositif de broyage pour déchets de bois
EP0419919A1 (fr) 1989-09-28 1991-04-03 VECOPLAN GmbH MASCHINENFABRIK Appareil de réduction des déchets
EP0514327A1 (fr) 1991-05-07 1992-11-19 Kueny Maschinenbau Désintégrateur pour bois, éléments métalliques, ordures et autres déchets
WO1995008425A1 (fr) * 1993-09-20 1995-03-30 Maurice Deschamps Dechiqueteur a cisaillement
DE4415472A1 (de) * 1994-05-03 1995-11-09 Franken Rohstoff Gmbh Verfahren zur materialspezifischen Auftrennung von zu verschrottenden Elektro- und/oder Elektronikbauteilen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202369A (en) * 1963-01-16 1965-08-24 Steel Briquette Corp Rotary sheet metal tearing devices
US4176800A (en) * 1978-01-11 1979-12-04 Garbalizer Corporation Of America Materials reduction structure
US4394983A (en) * 1981-03-02 1983-07-26 Kaca Corporation Tire and refuse shredder
EP0387868A2 (fr) 1989-03-15 1990-09-19 Klöckner Maschinen- und Anlagenbau GmbH Dispositif de broyage pour déchets de bois
EP0419919A1 (fr) 1989-09-28 1991-04-03 VECOPLAN GmbH MASCHINENFABRIK Appareil de réduction des déchets
EP0514327A1 (fr) 1991-05-07 1992-11-19 Kueny Maschinenbau Désintégrateur pour bois, éléments métalliques, ordures et autres déchets
WO1995008425A1 (fr) * 1993-09-20 1995-03-30 Maurice Deschamps Dechiqueteur a cisaillement
DE4415472A1 (de) * 1994-05-03 1995-11-09 Franken Rohstoff Gmbh Verfahren zur materialspezifischen Auftrennung von zu verschrottenden Elektro- und/oder Elektronikbauteilen

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078462A1 (fr) * 1999-06-21 2000-12-28 Werner Doppstadt Umwelttechnik Verwaltungsgesellschaft M.B.H. Fixation pour dents de rotor de machine a broyer
JP2003502150A (ja) * 1999-06-21 2003-01-21 ベルナー・ドプシュタット・ウンベルトテクニーク・フェアバルトゥンクスゲゼルシャフト・ミット・ベシュレンクテル・ハフツング 粉砕機における回転歯のための支持体
DE202005016672U1 (de) * 2005-10-23 2007-03-01 Doppstadt Calbe Gmbh Schneidwerkzeug für Zerkleinerungsvorrichtungen
US7980502B2 (en) 2005-10-23 2011-07-19 Doppstadt Calbe Gmbh Cutting tool for comminuting devices

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