EP0688605B1 - Messeranordnung für eine Maschine zum Zerkleinern von pflanzlichen Abfällen - Google Patents

Messeranordnung für eine Maschine zum Zerkleinern von pflanzlichen Abfällen Download PDF

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Publication number
EP0688605B1
EP0688605B1 EP95108795A EP95108795A EP0688605B1 EP 0688605 B1 EP0688605 B1 EP 0688605B1 EP 95108795 A EP95108795 A EP 95108795A EP 95108795 A EP95108795 A EP 95108795A EP 0688605 B1 EP0688605 B1 EP 0688605B1
Authority
EP
European Patent Office
Prior art keywords
knife
rotor
cutting
cutters
disc rotor
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
EP95108795A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0688605A1 (de
Inventor
Hans Schliesing
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0688605A1 publication Critical patent/EP0688605A1/de
Application granted granted Critical
Publication of EP0688605B1 publication Critical patent/EP0688605B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B02C18/143—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers with a disc rotor having generally radially extending slots or openings bordered with cutting knives
    • 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
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • B02C2018/188—Stationary counter-knives; Mountings thereof

Definitions

  • the invention relates to a knife assembly for a machine for shredding bushwood, pruning, waste, plastics and the like with a closed housing, in which a fixed counter wall with a feed channel is provided, on the lower edge of which a fixed counter knife is attached, and in which Disc rotor or a drum rotor is rotatably mounted on an axis in which at least one ejection opening and on which at least one cutting knife is arranged in front of the ejection opening and which cooperates with the fixed counter knife.
  • a machine for comminuting vegetable waste for example wood waste and wood pruning
  • This machine has a closed housing with a wall on the feed side, a wall on the drive side opposite this and an ejection for ejecting the comminuted waste.
  • this machine has a feed opening in the feed-side wall for introducing the vegetable waste to be shredded into the housing, at least one fixed counter knife at the feed opening and a cutting wheel rotatably arranged on the horizontal drive shaft at a distance in front of the feed side wall within the housing.
  • This has at least one movable cutting knife oriented towards the feed side in the area of the feed opening.
  • the feed opening extends in the feed-side wall over approximately the entire diameter of the cutting wheel.
  • a cutting frame with a passage opening the size of the feed opening, which frames the feed opening, is provided on the feed-side wall.
  • the movable cutting knives extend approximately from the outer circumference of the cutting wheel to just before the drive shaft.
  • a vertical cutter is provided in front of the wall on the feed side. In this known machine, essentially the entire diameter of the cutting wheel is available for the comminution of the vegetable waste.
  • the cutting knife is guided parallel to the fixed counter knife past the latter, so that the waste located between the counter knife and the cutting knife, such as tree trunks, pruning, bushwood and the like, is essentially crushed by pressing the cutting knife onto this waste. Every time the cutting knife strikes the waste to be shredded, the disc wheel brakes accordingly. It also creates loud punch noises.
  • the invention has for its object to provide a knife assembly of the type mentioned, with which the impact noises or cutting noises are significantly reduced.
  • the cutting knife arranged on the disc rotor or drum rotor is formed V-shaped to form two cutting edges and the cutting edges are inclined against the direction of rotation of the disc rotor or drum rotor and approximately in the central cutting area of the Disc rotor or drum rotor meet at an angle of 35 to 160 ° and that the ejection opening arranged in the disc rotor or drum rotor is V-shaped in accordance with the cutting knife.
  • both cutting edges are effective and pulling at the same time.
  • the protractor covers essentially the entire cross section of the feed channel or it covers the length of the counter knife. Since the cutting edges are arranged at an angle to each other, the cutting length is much longer than with a straight cutting edge. This extends the time and distance of the cutting process, which ensures a significantly lower cutting noise compared to known knife arrangements.
  • the two cutting edges which are at an angle to one another can form a one-piece protractor.
  • the two cutting edges which are at an angle to one another can each be formed in one piece.
  • One or more protractors can be evenly distributed on the disc rotor.
  • the distance between the two free ends of the slanted cutting edges essentially corresponds to the length of the fixed counter knife.
  • a view of a disc rotor 1 is shown, which is rotatably mounted on an axis 2 in the housing (not shown) of a machine for shredding bushwood, pruning trees, waste, plastics and the like.
  • V-shaped ejection openings 3, 4 are provided on both sides of the axis 2.
  • the ejection opening 3 consists of two legs 5, 6, which run obliquely in the opposite direction to the arrow 7, that is to say counter to the direction of rotation of the disk rotor 1, and meet in a tip 8 in the rear region.
  • a protractor 9 is provided, which is held firmly between the holding plates 10, 11 and a counter plate 12.
  • the cutting knife 9 is V-shaped to form two cutting edges 13, 14.
  • the cutting edges 13, 14 are inclined counter to the direction of rotation 7 of the disc rotor 1 such that they meet approximately in the central cutting region of the disc rotor 1 at a common point 15 at an angle which can be between 35 and 160 °.
  • a counter knife 17 is provided below the center line 16 and is arranged on the lower edge of the feed channel provided in a fixed counter wall.
  • the fixed counter knife 17 is thus not part of the disc rotor 1 but the counter wall of the housing of the machine which is arranged at a short distance from the disc rotor 1.
  • the ejection opening 4 is V-shaped to form two legs 18, 19.
  • the protractor 20, which is slightly behind the ejection opening 4, is below Formation of two cutting edges 21,22 V-shaped and firmly clamped between holding plates 23,24 and a counter plate 25.
  • the illustration is chosen so that a tree trunk 26 rests on the counter knife 17 at point 27 and the cutting edges 13, 14 act simultaneously on the tree trunk 26 at points 28, 29.
  • the tree trunk 26 With further movement of the cutting knife 9 in the direction of rotation 7, the tree trunk 26 is cut at the two points 28, 29 by the two cutting edges 13, 14 and finally cut through.
  • the tree trunk 26 remains at the point 27 on the counter knife 17, so the tree trunk 26 is not moved on the counter knife 17.
  • the two cutting edges 13, 14 essentially cover the width of the counter knife 17 and are simultaneously effective on the tree trunk 26. This means that the cutting edges 13, 14 cut the tree trunk 26 pulling.
  • the cutting length available is comparatively large. This means that the time and distance of the cutting process are also comparatively long, which ensures a relatively low cutting noise when cutting the tree trunk 26 through the two cutting edges 13, 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Knives (AREA)
  • Harvester Elements (AREA)
  • Threshing Machine Elements (AREA)
EP95108795A 1994-06-23 1995-06-08 Messeranordnung für eine Maschine zum Zerkleinern von pflanzlichen Abfällen Expired - Lifetime EP0688605B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4421974A DE4421974C1 (de) 1994-06-23 1994-06-23 Messeranordnung für eine Maschine zum Zerkleinern von pflanzlichen Abfällen
DE4421974 1994-06-23

Publications (2)

Publication Number Publication Date
EP0688605A1 EP0688605A1 (de) 1995-12-27
EP0688605B1 true EP0688605B1 (de) 1996-12-27

Family

ID=6521321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108795A Expired - Lifetime EP0688605B1 (de) 1994-06-23 1995-06-08 Messeranordnung für eine Maschine zum Zerkleinern von pflanzlichen Abfällen

Country Status (4)

Country Link
EP (1) EP0688605B1 (da)
AT (1) ATE146704T1 (da)
DE (2) DE4421974C1 (da)
DK (1) DK0688605T3 (da)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE70083C (de) * Firma W. RITTER in Altona, Friedenstrafse 17 Messerklappe für Messer an Holzraspeltrommeln
US2873923A (en) * 1956-07-16 1959-02-17 Columbia Veneer Company Wood rechipper
DE1164070B (de) * 1959-02-26 1964-02-27 Paul Kirsten Dr Ing Werkzeugtraeger, insbesondere von zylindrischer Bauart, fuer Holzzerspanungsmaschinen
US4760967A (en) * 1986-11-17 1988-08-02 Bendickson Orrin C Mulcher-chopper
DE3843982A1 (de) * 1988-12-27 1990-06-28 Hans Schliesing Maschine zum zerkleinern von pflanzlichen abfaellen
US5143311A (en) * 1990-05-17 1992-09-01 Newman Machine Company, Inc. Wood shavings forming apparatus and cutting roll adapted for use therewith
DE9307422U1 (de) * 1993-05-15 1993-10-21 Gross, Stefan, 74074 Heilbronn Zerkleinerungsvorrichtung für Abfälle

Also Published As

Publication number Publication date
ATE146704T1 (de) 1997-01-15
DK0688605T3 (da) 1997-06-23
EP0688605A1 (de) 1995-12-27
DE59500077D1 (de) 1997-02-06
DE4421974C1 (de) 1995-07-13

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