WO2003099000A1 - Cutters for fodder-cutting machines and a cutting machine including the cutters - Google Patents

Cutters for fodder-cutting machines and a cutting machine including the cutters Download PDF

Info

Publication number
WO2003099000A1
WO2003099000A1 PCT/IT2002/000334 IT0200334W WO03099000A1 WO 2003099000 A1 WO2003099000 A1 WO 2003099000A1 IT 0200334 W IT0200334 W IT 0200334W WO 03099000 A1 WO03099000 A1 WO 03099000A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
cutters
rotor
cutting edge
fodder
Prior art date
Application number
PCT/IT2002/000334
Other languages
French (fr)
Inventor
Fausto Faccia
Original Assignee
Unifast S.R.L.
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 Unifast S.R.L. filed Critical Unifast S.R.L.
Priority to PCT/IT2002/000334 priority Critical patent/WO2003099000A1/en
Priority to AU2002311232A priority patent/AU2002311232A1/en
Publication of WO2003099000A1 publication Critical patent/WO2003099000A1/en

Links

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
    • B02C18/16—Details
    • B02C18/18—Knives; Mountings thereof
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
    • A01F25/16—Arrangements in forage silos
    • A01F25/20—Unloading arrangements
    • A01F25/2027—Unloading arrangements for trench silos
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K5/00—Feeding devices for stock or game ; Feeding wagons; Feeding stacks
    • A01K5/001—Fodder distributors with mixer or shredder
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
    • A01F25/16—Arrangements in forage silos
    • A01F25/20—Unloading arrangements
    • A01F25/2027—Unloading arrangements for trench silos
    • A01F2025/2063—Machinery for shredding successive parallel layers of material in a trench silo

Definitions

  • the subject of the present invention is cutters for fodder-cutting machines and a cutting machine including the cutters.
  • the main technical aim of the present invention is to define a novel shape of the cutters for cutting machines and a novel distribution of the cutters which permit improved performance.
  • an important object of the invention is that of providing cutters the structure and operation of which improve the quality of the shreddings and shredding capacity for a given power used.
  • One of the chief objects of the invention is to provide a cutting machine in which the cutters are arranged on the rotor so as to achieve improved transportation of the material shredded.
  • FIG. 2 is a partial perspective view of the rotor of Figure 1 ,
  • FIG. 3 is a side elevational view of one of the cutters with which the rotor of Figure 1 is equipped.
  • a rotor of a fodder-cutting machine is generally indicated 1 and includes a drum 2 from the cylindrical wall of which a plurality of plate-like supports 3 project radially.
  • a respective cutter 4 is fixed on each support 3 by nut and bolt connections 3a.
  • the rotor 1 has a horizontal axis X and is driven, for example, by a hydraulic motor, not shown.
  • Each of the cutters 4 comprises a blade 5 having a curved, sabre-shaped cutting edge 6.
  • the side of the blade remote from the cutting edge 6 is indicated as the rear edge 7.
  • the cutting edge 6 of the blade 5 has a leading angle 10 at which the cutting edge and the rear edge converge, and a following portion 11.
  • the cutting edge 6 is shaped so as to diverge from the curved wall 2 of the rotor when the cutter is mounted thereon, as the cutting edge 6 extends from the leading angle 10 towards the following portion 11.
  • the cutting edge 6 has a spiral shape with a gradient which decreases from the leading angle 10 towards the following portion 11.
  • first portion 7a On the rear edge 7, starting from the leading angle 10, there is a first portion, indicated 7a, which has a curved surface complementary with the profile of the cylindrical wall of the drum 2 so that, when the cutter is mounted on the respective support, the first portion 7a fits against the outer surface of the curved wall 2.
  • the cutters 4 are distributed at regular intervals along a spiral path on the rotor 1 and, preferably, along two spiral paths so as to form two interrupted screws 12, 13 which, with reference to the cutting movement of the rotor indicated by the arrow F, tend to transport the shredded fodder towards the centre of the rotor.
  • Each interrupted screw 12, 13 preferably has several spiral threads.
  • the cutters 4 are offset with respect to a given generatrix of the rotor so as to improve the transportation of the shredded fodder towards the centre of the rotor.
  • the sabre-like shape of the cutting edges 6 of the cutters 4 leads to their progressive penetration into the mass of fodder being shredded. This penetration progresses both with the cutting movement and with the advance of the machine towards the mass of fodder.
  • the spiral distribution of the cutters on the rotor provides for rapid transportation of the shredded fodder towards the centre of the rotor so that it is collected and transferred by conventional means of the cutting machine into the mixing container of an optional mixing cart associated with the above-described unit.
  • the invention thus achieves the objects proposed and offers many advantages over the prior art.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Birds (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)

Abstract

A cutter for fodder-cutting machines comprises a blade (5) which can be fixed removably on a rotor (1) of a cutting machine and which has a curved, sabre-like shape in the region of the cutting edge (6).

Description

Cutters for fodder-cutting machines and a cutting machine including the cutters
Technical field
The subject of the present invention is cutters for fodder-cutting machines and a cutting machine including the cutters. Technological background
Within the technical field of fodder-cutting machines, it is known to equip the rotor of the cutting machine with a plurality of cutters generally having a triangular or at most trapezoidal shape. These cutters have the advantage of a good shredding capacity, low cost and, when formed with a double cutting edge, the advantage of their reversibility which, amongst other things, prevents the possibility of mounting errors.
It has, however, been found that the shape of these cutters does not optimize the mechanical performance of the cutting machine, leading to the possibility of swamping of the shreddings, relatively slow speeds of advance, and high power absorption.
Description of the invention
The main technical aim of the present invention is to define a novel shape of the cutters for cutting machines and a novel distribution of the cutters which permit improved performance. Within the scope of this aim, an important object of the invention is that of providing cutters the structure and operation of which improve the quality of the shreddings and shredding capacity for a given power used.
One of the chief objects of the invention is to provide a cutting machine in which the cutters are arranged on the rotor so as to achieve improved transportation of the material shredded.
This aim and these objects are achieved by the invention by means of the fodder cutters and by means of the cutting machine including the cutters which form the subjects of the appended claims.
Brief description of the drawings The characteristics and the advantages of the invention will become clearer form the detailed description of a preferred embodiment thereof, described by way of non-limiting example with reference to the appended drawings, in which: - Figure 1 is a front perspective view of a rotor for cutting machines according to the invention,
- Figure 2 is a partial perspective view of the rotor of Figure 1 ,
- Figure 3 is a side elevational view of one of the cutters with which the rotor of Figure 1 is equipped.
Preferred embodiment of the invention
In Figures 1 and 2, a rotor of a fodder-cutting machine is generally indicated 1 and includes a drum 2 from the cylindrical wall of which a plurality of plate-like supports 3 project radially. A respective cutter 4 is fixed on each support 3 by nut and bolt connections 3a.
The rotor 1 has a horizontal axis X and is driven, for example, by a hydraulic motor, not shown.
Each of the cutters 4 comprises a blade 5 having a curved, sabre-shaped cutting edge 6. The side of the blade remote from the cutting edge 6 is indicated as the rear edge 7.
With reference to the cutting movement indicated by the arrow F of Figures 1 and 2, the cutting edge 6 of the blade 5 has a leading angle 10 at which the cutting edge and the rear edge converge, and a following portion 11. The cutting edge 6 is shaped so as to diverge from the curved wall 2 of the rotor when the cutter is mounted thereon, as the cutting edge 6 extends from the leading angle 10 towards the following portion 11. In particular, the cutting edge 6 has a spiral shape with a gradient which decreases from the leading angle 10 towards the following portion 11.
On the rear edge 7, starting from the leading angle 10, there is a first portion, indicated 7a, which has a curved surface complementary with the profile of the cylindrical wall of the drum 2 so that, when the cutter is mounted on the respective support, the first portion 7a fits against the outer surface of the curved wall 2.
The cutters 4 are distributed at regular intervals along a spiral path on the rotor 1 and, preferably, along two spiral paths so as to form two interrupted screws 12, 13 which, with reference to the cutting movement of the rotor indicated by the arrow F, tend to transport the shredded fodder towards the centre of the rotor. Each interrupted screw 12, 13 preferably has several spiral threads.
Moreover, the cutters 4 are offset with respect to a given generatrix of the rotor so as to improve the transportation of the shredded fodder towards the centre of the rotor. During the cutting movement, the sabre-like shape of the cutting edges 6 of the cutters 4 leads to their progressive penetration into the mass of fodder being shredded. This penetration progresses both with the cutting movement and with the advance of the machine towards the mass of fodder.
The spiral distribution of the cutters on the rotor provides for rapid transportation of the shredded fodder towards the centre of the rotor so that it is collected and transferred by conventional means of the cutting machine into the mixing container of an optional mixing cart associated with the above-described unit.
The invention thus achieves the objects proposed and offers many advantages over the prior art.

Claims

1. A cutter for fodder-cutting machines, comprising a blade (5) which has at least one cutting edge (6) and which can be fixed removably on a cutting rotor (4), characterized in that the blade (5) has a curved, sabre-like shape in the region of the cutting edge (6).
2. A cutter according to Claim 1 in which the cutting edge (6) of the blade (5) has, with reference to the cutting movement (F), a leading angle (10) and a following portion (11 ), the cutting edge (6) being shaped so as to diverge from the rotor (1), when the cutter (4) is mounted thereon, as the cutting edge (6) extends from the leading angle towards the following portion.
3. A cutter according to Claim 1 or Claim 2 in which the cutting edge (6) has a spiral shape with a gradient which decreases from the leading angle (10) towards the following portion (11 ).
4. A cutter according to one or more of the preceding claims in which the blade (5) has, on the side remote from the cutting edge (6), a rear edge (7) which, starting from the leading angle (10) and for at least a portion of its extent, has a curved surface complementary with the surface of the rotor (1).
5. A rotor for a cutting' machine including a plurality of cutters (4) according to one or more of the preceding claims.
6. A rotor according to Claim 5 in which the cutters (4) are distributed at regular intervals along a spiral path.
7. A rotor according to Claim 6 in which the cutters (4) are distributed along two interrupted screw-shaped paths which converge towards the centre of the rotor, with reference to the cutting movement (F).
8. A rotor according to Claim 7 in which each screw-shaped portion has several threads.
PCT/IT2002/000334 2002-05-23 2002-05-23 Cutters for fodder-cutting machines and a cutting machine including the cutters WO2003099000A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/IT2002/000334 WO2003099000A1 (en) 2002-05-23 2002-05-23 Cutters for fodder-cutting machines and a cutting machine including the cutters
AU2002311232A AU2002311232A1 (en) 2002-05-23 2002-05-23 Cutters for fodder-cutting machines and a cutting machine including the cutters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2002/000334 WO2003099000A1 (en) 2002-05-23 2002-05-23 Cutters for fodder-cutting machines and a cutting machine including the cutters

Publications (1)

Publication Number Publication Date
WO2003099000A1 true WO2003099000A1 (en) 2003-12-04

Family

ID=29560496

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2002/000334 WO2003099000A1 (en) 2002-05-23 2002-05-23 Cutters for fodder-cutting machines and a cutting machine including the cutters

Country Status (2)

Country Link
AU (1) AU2002311232A1 (en)
WO (1) WO2003099000A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009095882A2 (en) * 2008-01-30 2009-08-06 Storti International S.P.A. Mixing and mincing auger
US7967044B2 (en) 2008-08-19 2011-06-28 Usitech Nov Inc. Protective guard members for cutting tooth assemblies mounted on a brush cutting head
KR101352051B1 (en) * 2011-12-20 2014-01-15 이리중 Supply machine for TMR Feed

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1347876A (en) * 1917-10-15 1920-07-27 American Manganese Steel Co Pug-mill knife
FR1430701A (en) * 1964-04-23 1966-03-04 Harder Georg Maschinenfabrik Mobile tiller for fully mechanical recovery of silage products
WO1985005532A1 (en) * 1984-05-25 1985-12-19 George Samuel Copping Cutting cylinder
US4600160A (en) * 1984-09-20 1986-07-15 Oscar Mayer Foods Corporation Chopper blade assembly
DE9211410U1 (en) * 1992-08-27 1993-03-25 Trunkenpolz, Friedrich, Ing., Altheim Silage cutter
EP0638230A1 (en) * 1993-08-03 1995-02-15 Tiziano Faccia Rotating silage extractor and conveyor arm
US5439182A (en) * 1992-12-03 1995-08-08 Sioux Automation Center, Inc. Equipment/apparatus with one horizontal auger for cutting up and mixing of fibrous products used for the preparation of animal feed
US6109552A (en) * 1999-03-23 2000-08-29 Strankman; Douglas R. Agricultural feed bag unloading apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1347876A (en) * 1917-10-15 1920-07-27 American Manganese Steel Co Pug-mill knife
FR1430701A (en) * 1964-04-23 1966-03-04 Harder Georg Maschinenfabrik Mobile tiller for fully mechanical recovery of silage products
WO1985005532A1 (en) * 1984-05-25 1985-12-19 George Samuel Copping Cutting cylinder
US4600160A (en) * 1984-09-20 1986-07-15 Oscar Mayer Foods Corporation Chopper blade assembly
DE9211410U1 (en) * 1992-08-27 1993-03-25 Trunkenpolz, Friedrich, Ing., Altheim Silage cutter
US5439182A (en) * 1992-12-03 1995-08-08 Sioux Automation Center, Inc. Equipment/apparatus with one horizontal auger for cutting up and mixing of fibrous products used for the preparation of animal feed
EP0638230A1 (en) * 1993-08-03 1995-02-15 Tiziano Faccia Rotating silage extractor and conveyor arm
US6109552A (en) * 1999-03-23 2000-08-29 Strankman; Douglas R. Agricultural feed bag unloading apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009095882A2 (en) * 2008-01-30 2009-08-06 Storti International S.P.A. Mixing and mincing auger
WO2009095882A3 (en) * 2008-01-30 2010-04-29 Storti S.P.A. Mixing and mincing auger
CN101909431B (en) * 2008-01-30 2013-08-14 斯托蒂S.P.A.公司 Mixing and mincing auger
US7967044B2 (en) 2008-08-19 2011-06-28 Usitech Nov Inc. Protective guard members for cutting tooth assemblies mounted on a brush cutting head
KR101352051B1 (en) * 2011-12-20 2014-01-15 이리중 Supply machine for TMR Feed

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Publication number Publication date
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