EP0420000A1 - Outil de coupe pour machine à broyer - Google Patents

Outil de coupe pour machine à broyer Download PDF

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Publication number
EP0420000A1
EP0420000A1 EP90117895A EP90117895A EP0420000A1 EP 0420000 A1 EP0420000 A1 EP 0420000A1 EP 90117895 A EP90117895 A EP 90117895A EP 90117895 A EP90117895 A EP 90117895A EP 0420000 A1 EP0420000 A1 EP 0420000A1
Authority
EP
European Patent Office
Prior art keywords
cutting
cutting edges
grooves
cutting knife
edges
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
EP90117895A
Other languages
German (de)
English (en)
Other versions
EP0420000B1 (fr
Inventor
Karl Ing. Schnell
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.)
Karl Schnell Maschinenfabrik
Karl Schnell GmbH and Co Maschinenfabrik
Original Assignee
Karl Schnell Maschinenfabrik
Karl Schnell GmbH and Co Maschinenfabrik
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 Karl Schnell Maschinenfabrik, Karl Schnell GmbH and Co Maschinenfabrik filed Critical Karl Schnell Maschinenfabrik
Publication of EP0420000A1 publication Critical patent/EP0420000A1/fr
Application granted granted Critical
Publication of EP0420000B1 publication Critical patent/EP0420000B1/fr
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
    • B02C18/30—Mincing machines with perforated discs and feeding worms
    • B02C18/36—Knives or perforated discs

Definitions

  • the invention relates to a cutting set for a comminution machine, in particular for meat and the like. With a perforated disc and a drivable cutting knife interacting therewith.
  • Such cutting sets and the associated shredding machines have long been used in the food industry, but in particular in the meat processing industry. They are equipped with one or more cutting sets of the type mentioned at the outset, which are arranged one behind the other in the direction of travel of the material to be cut.
  • the material to be sliced which in the meat processing industry can be meat, rind, lichen and other cutable parts of the slaughter cattle, is usually supplied by means of a screw conveyor or the like.
  • the cutting knife is on the same shaft as the screw conveyor or the like, so that both can be driven together at the same speed.
  • the first one is used for rough cutting, while with the following ones the material to be cut is further shredded, so that in the end it leaves the outlet of the machine relatively finely shredded.
  • the degree of fineness depends on the cross-section of the holes in the perforated disc.
  • the object of the invention is therefore to develop a cutting set of the type mentioned so that it works with greater effectiveness.
  • the invention proposes that the cutting set is designed according to the preamble of claim 1 according to the characterizing part of this claim. Now it is possible that, seen in the radial direction, between the cutting knife and the surrounding stationary part of the shredding machine, a shredding process takes place, which separates the penetrated cuttings from the remaining part of the same, seen in the direction of flow, in front of the cutting knife and thereby facilitating its feeding to the actual cutting edges of the cutting set and the perforated plate. This also prevents congestion in this outer area of the cutting set, in particular also in the outer area of the perforated disk.
  • the extent to which a pure cutting process or only a comparable separation from the individual chunks of the material to be cut takes place depends on the construction of the cutting knife on the one hand and the gap width on the other hand and the comminution material itself. In any case, the hindrance to the passage or the feed to the cutting set is improved in this way and the effectiveness of this cutting set is intended to be improved, which also includes undesired local heating of the material to be cut.
  • a further development of the invention provides that at least the additional cutting edges are formed by grooves, grooves or the like. Recesses in the cutting blade body. The more sharp-edged they are, the better their cutting effect.
  • the cutting process can also be influenced by the cross-sectional shape, it being particularly desirable that one of the edges be one has a favorable angle.
  • the grooves or the like are attached to the casing of the cutting knife body and they each run in the direction of a casing line or at a slight inclination to it.
  • this does not mean that it must be a complete jacket in the sense of a cylinder or truncated cone jacket, rather it can be interrupted in a known manner.
  • the grooves are only on the parts that remain from an imaginary cylindrical, frustoconical or similar shell.
  • Correspondingly designed and aligned grooves can be located on the inside of the housing, which then together with the grooves of the cutting knife body form a pair of cutting edges.
  • a further embodiment of the invention consists in that the jacket of the cutting knife body is frustoconical and the grooves or the like.
  • the counter blades are attached to a truncated cone-shaped inner jacket.
  • the cone angles are the same or approximately the same.
  • the cutting knife body preferably consists of a hub with approximately radially or tangentially projecting arms, the grooves or the like being located on the free end faces of the arms. It is in particular an embodiment with several arms, preferably with five to twelve arms, although also one Knives with fewer arms can be used, as has been known for a long time.
  • a preferred embodiment of the invention is characterized in that the larger truncated spherical surface of the cutting knife body faces the perforated disk and the grooves or the like of the machine housing are attached to a removable housing ring. In the event of damage or wear, the latter can easily be exchanged for a new one or, if necessary, also overhauled. It is also possible to use a different material for this ring than for the housing of the shredding machine, in particular a material that can better withstand the loads.
  • the cutting knife can be advanced in the direction of its axis of rotation against its perforated disc, and at maximum cutting height, the additional cutting edges have a minimal gap distance from the counter cutting edges.
  • the cutting edges of the cutting knife are preferably located on cutting blades made of particularly high-quality material, in particular knife steel, which are inserted into the cutting knife body and are therefore adjustable or adjustable after grinding. Because they still wear out and consequently the cutting knife has to be set against the perforated disc when the blade has become shorter due to regrinding, this leads to an increase in the gap distance. However, this remains within relatively small limits, so that the effectiveness of the radial cutting device is hardly negatively thereby is influenced.
  • the shredding machine 1 only partially shown, with the hopper 2 for the shredded material has a drive shaft 3 driven by an electric motor, also not shown, on which a screw conveyor 4 and a cutting knife 5 of a cutting set 6 are held in a rotationally fixed manner.
  • the cutting set also includes a perforated disk 7 of a known type.
  • the comminution material introduced into the filling funnel 2, for example meat, rind, pork, tendons and the like, is grasped by the screw conveyor 4 projecting into the lower end of the funnel and transported against the cutting set 6. Then it will crushed with the aid of the cutting set and leaves this machine in the direction of the arrow 8. At a suitable point, this emerging comminuted mass flow can be deflected, but this is not important in connection with the design of the cutting set according to the invention.
  • the cutting knife consists, in particular, of how the FIGS. 2 and 3 can be clearly seen from a cutting knife body 9 with interchangeable and adjustable cutting blades 10 inserted therein.
  • Fig. 2 at an acute angle 11 to a radius 12 through the hub 13 of the cutting blade body 9. Seen in the direction of rotation 14, the outer end of each cutting blade 10 leads ahead of the inner end.
  • a fastening element 15 is indicated symbolically by a dash-dotted line.
  • the cutting knife 5 consists of the already mentioned hub 13 and arms 16 which are approximately tangentially attached to it. In the exemplary embodiment, approximately tangetially, to specify it somewhat, the longitudinal rearward edge of each arm 16 in the direction of rotation Pre-cutter. It is assigned to the hub surface 18 pointing towards the inner end of the funnel.
  • 16 additional cutting edges 19 are now on the cutting blade body or, in the exemplary embodiment, on the free ends of the arms attached, in particular molded, which extend in approximately the radial direction and cooperate with approximately radial counter cutting edges 20 of the machine housing, in particular a housing ring 21 of the latter, for additional comminution of the filled material.
  • the additional cutting edges 19 and the counter cutting edges 20 act together in the sense of comminution if the material has forced itself into the gap 22.
  • the additional cutting edges 19 run slightly inclined with respect to a surface line parallel to the geometric axis of rotation 23, their upper end leading ahead.
  • the counter cutting edges 20 also have a corresponding inclination.
  • the additional cutting edges and the counter cutting edges 20 receive a further inclination in that the free, front ends of the arms 16 form parts of a truncated cone surface, the smaller truncated cone surface facing the hub surface 18.
  • the angle of this truncated cone is designated by 24 in FIG. 1. It is of the order of 60 ° to 70 °, while the angle of inclination 25 is of the order of 15 °.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
EP90117895A 1989-09-23 1990-09-18 Outil de coupe pour machine à broyer Expired - Lifetime EP0420000B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3931813A DE3931813A1 (de) 1989-09-23 1989-09-23 Schneidsatz fuer eine zerkleinerungsmaschine
DE3931813 1989-09-23

Publications (2)

Publication Number Publication Date
EP0420000A1 true EP0420000A1 (fr) 1991-04-03
EP0420000B1 EP0420000B1 (fr) 1994-03-30

Family

ID=6390052

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90117895A Expired - Lifetime EP0420000B1 (fr) 1989-09-23 1990-09-18 Outil de coupe pour machine à broyer

Country Status (5)

Country Link
US (1) US5054698A (fr)
EP (1) EP0420000B1 (fr)
DE (1) DE3931813A1 (fr)
DK (1) DK0420000T3 (fr)
ES (1) ES2054184T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5918822A (en) * 1998-01-26 1999-07-06 Sternby; Arthur J. Channeled pulp rotor
US8257148B1 (en) 2009-01-06 2012-09-04 Reliance Controls Corporation Knife insert with bottom edge relief for cutting edge alignment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR993726A (fr) * 1949-03-26 1951-11-06 Machine à broyer des substances animales et végétales et procédé pour la mise en valeur des graisses
DE8617950U1 (de) * 1986-07-04 1987-11-05 Fryma-Maschinen Ag, Rheinfelden Mehrstufenmühle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US667029A (en) * 1899-03-15 1901-01-29 Enterprise Mfg Co Meat-cutter.
US2282671A (en) * 1940-12-09 1942-05-12 Lewis B Motte Meat grinder
DK125313B (da) * 1970-04-27 1973-02-05 W Jensen Hakkemaskine med transportsnegl og tilpresningssnegl.
DK157783C (da) * 1977-06-17 1990-09-17 Wolfking Danmark As Hakkemaskine, isaer koedhakkemaskine
AT351963B (de) * 1977-10-06 1979-08-27 Laska Maschf Gmbh Schneidsatz fuer fleischwoelfe od.dgl.
DE3620598C2 (de) * 1986-06-19 1997-08-14 Schnell Maschfab Karl Vorrichtung zum automatischen Verstellen des Schneidsatzes einer Fleischzerkleinerungsmaschine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR993726A (fr) * 1949-03-26 1951-11-06 Machine à broyer des substances animales et végétales et procédé pour la mise en valeur des graisses
DE8617950U1 (de) * 1986-07-04 1987-11-05 Fryma-Maschinen Ag, Rheinfelden Mehrstufenmühle

Also Published As

Publication number Publication date
ES2054184T3 (es) 1994-08-01
DK0420000T3 (da) 1994-05-02
DE3931813A1 (de) 1991-04-04
US5054698A (en) 1991-10-08
EP0420000B1 (fr) 1994-03-30

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