EP0420001A1 - Meat-mincing machine - Google Patents

Meat-mincing machine Download PDF

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Publication number
EP0420001A1
EP0420001A1 EP90117896A EP90117896A EP0420001A1 EP 0420001 A1 EP0420001 A1 EP 0420001A1 EP 90117896 A EP90117896 A EP 90117896A EP 90117896 A EP90117896 A EP 90117896A EP 0420001 A1 EP0420001 A1 EP 0420001A1
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EP
European Patent Office
Prior art keywords
cutting knife
cutting
approximately
machine according
tooth
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
EP90117896A
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German (de)
French (fr)
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EP0420001B1 (en
Inventor
Karl Ing. Schnell
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Karl Schnell Maschinenfabrik
Karl Schnell GmbH and Co Maschinenfabrik
Original Assignee
Karl Schnell Maschinenfabrik
Karl Schnell GmbH and Co Maschinenfabrik
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Publication of EP0420001A1 publication Critical patent/EP0420001A1/en
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    • 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
    • B02C18/301—Mincing machines with perforated discs and feeding worms with horizontal axis
    • B02C18/304—Mincing machines with perforated discs and feeding worms with horizontal axis with several axially aligned knife-perforated disc units
    • 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 shredding machine, in particular for meat and the like.
  • a shredding machine With two cutting sets arranged one behind the other in the direction of throughput of the material to be cut, each consisting of a perforated disc and a rotating cutting knife.
  • the first cutting set serves to pre-cut the material to be comminuted, while it is finely comminuted in the second cutting set.
  • the material to be sliced is usually fed to the machine via a hopper and, in the meat processing industry, it consists of relatively large chunks of meat, braids, rinds and other parts of the slaughter cattle. In particular due to the fat content, these parts tend to adhere to the walls of their passage and it is therefore necessary to provide suitable means for further transport.
  • the weight of the mass in the funnel is sufficient for this.
  • Another problem lies in the fact that the material to be comminuted has to be transported through the gaps between the arms of the cutting knife to the perforated disk when it arrives at the first cutting set because, seen in the direction of travel, the cutting knife is upstream of the perforated disk of the relevant cutting set. Due to the high speed of the cutting knife and the adhesion of the material to be cut, it tends to rotate in the area of the cutting knife. This reduces the cutting performance and also brings about undesirable local heating.
  • the object of the invention is to develop the comminution machine of the type mentioned at the outset in such a way that the passage of the material to be cut through the machine is improved, in particular in the region of the first cutting set.
  • the shredding machine according to the preamble of claim 1 according to the characterizing part of this claim det.
  • the material to be cut to which a certain feed pressure is exerted from the inside, has to migrate further to the perforated disc, where it is then gripped by the cutting edges of the cutting knife. It passes through the first perforated disc and then arrives at the next cutting set.
  • a retaining ring of this type is also installed there, the pre-shredded material is also prevented from rotating between the two cutting sets and a jam is also prevented at this point in the shredding machine.
  • the risk of jamming is significantly greater before the first cutting set than before the second or possibly a third cutting set. Because the cutting knife body extends into the retaining ring, the interior space present in the latter is inevitably reduced, which does not hinder the throughput of the material to be cut, but counteracts the setting of the material to be cut at this point.
  • tooth gaps have a constant width.
  • the storage ring can be made of high quality material and the teeth can be created by milling the tooth gaps or at least done have it edited.
  • the teeth inevitably become wedge-shaped in relation to their base, because they extend in the radial direction and this shape on the base of the tooth thus results solely from geometric reasons.
  • the damming teeth are essentially assigned to the part of the retaining ring located on the inflow side, in particular the inflow-side ring half, wherein they or an inflow-side tooth part have an essentially triangular shape in a side view.
  • This configuration enables a correspondingly favorable shape of the cutting knife protruding into the retaining ring.
  • This shape is also useful when viewed in the direction of passage because the tooth gaps form parts of a funnel-shaped passage that are staggered in the circumferential direction.
  • each ram tooth is approximately arcuate or angular, the angle being obtuse.
  • a mixed form of these two types of contours is also conceivable, that is to say the transition from an arc to a straight angled leg, but it also applies here that an obtuse angle is present overall in front of a preferably approximately 130 ° to 150 °.
  • the Cutting knife body measured in the axial direction at most about the same height as the baffle ring. Another embodiment of the invention results from claim 6. Because the cutting knife body engages approximately with its entire height in the retaining ring, the machine is very compact in this area.
  • an enveloping body around the cutting knife at least in the area of the cutting knife arms and an inner enveloping body in the area of the jam teeth in the overlap area have approximately the same shape. Both have the smallest possible gap distance from each other.
  • the cutting knife preferably has more than two, preferably five to twelve arms, each with at least one interchangeable blade inserted.
  • the number of arms also depends on the material to be cut. The manufacturing costs of this machine increase with the number of arms, which is why the selection should be made carefully in this direction.
  • the blades are interchangeable in known whites, so that they can be removed in the event of damage or if they are blunt and replaced with new or reground ones. In this regard, reference is made to the known configurations.
  • the material to be comminuted is filled into the hopper 1 of the comminution machine 2 automatically or by hand and passes through it in the direction of the arrows, the first of which is denoted by 3 in FIG. 1.
  • the strength of the arrows indicates that the Zer material to be shredded is shredded in two stages in this shredding machine.
  • this shredding machine is equipped with two cutting sets 4 and 5 arranged one behind the other in the direction of flow 3.
  • the first cutting set 4 consists of the first cutting knife 6 and the first perforated disk 7, while the second cutting set 5 includes the second cutting knife 8 and the second perforated disk 9.
  • the cutting knives sit in a rotationally fixed manner on a common drive shaft 10, which are driven by the drive motor (not shown), in particular the electric motor, of the comminution machine 2.
  • the perforated discs 7 and 9 are held in a rotationally fixed manner in the housing 11 of the comminution machine 2.
  • a baffle ring 12 is installed in the direction of passage 3, seen from the first perforated disc 7, which is shown in FIGS. 2 and 3 is shown enlarged. It has a large number of approximately radial ram teeth 13. Viewed in the circumferential direction, the width of the tooth gaps 14 of adjacent teeth is approximately the same as the gap width. However, because the width of the tooth gaps in the exemplary embodiment is chosen to be constant, this determination relates there approximately to the tooth width on the outer circumference of the retaining ring 12.
  • Fig. 3 shows that the teeth 13 are essentially assigned to the inflow side 15 of the ring.
  • each tooth in the embodiment of FIG. 3 consists of a first tooth part 16 approximately triangular in side view and a second tooth part 17 of approximately similar cross-sectional shape, the tips facing each other.
  • the contour of the tooth base 18 is arch-shaped because the teeth are, as said, milled, in particular with the help of a disc milling cutter.
  • an inner contour was selected in the exemplary embodiment of FIG. 3, which consists of two at an angle to one another standing conical surfaces, the angle enclosed by both being designated there by 19.
  • the cutting knife body 20 is star-shaped in all exemplary embodiments. Measured in the axial direction, it has at most approximately the same height as the retaining ring 12. In the exemplary embodiment, the height of the retaining ring is approximately one third greater than that of the cutting knife body 20. The latter, however, protrudes with its entire height, as shown in FIG. 1 of the drawing the storage ring 20 into it. As a result, the aforementioned adaptation of the outer contour of the cutting knife body 20 to the inner contour of the retaining ring 12 is necessary insofar as both are directly associated with one another. It can be seen, for example, from FIG. 4 that there an enveloping imaginary body of the cutting knife body 20 has approximately the same angle 23 as the angle 19 of the inner contour of the jam rings 12. A replaceable blade 25 is inserted into each arm 24 of the cutting blade body 20.
  • a single arm of the cutting knife 6 or 8 is sufficient, but a rotation-symmetrical design is preferred for dynamic reasons alone. So far, two-arm cutting knives have been the preferred embodiment. If instead a larger number of arms is selected, for example as in the exemplary embodiments from 5 to 9, the effectiveness of the cutting set increases.
  • a support ring 26 is located between the two cutting sets 4 and 5. This can also be designed in the manner of the retaining ring 12.
  • FIG. 1 the correct proportions of cutting knife and perforated disc can be seen.
  • the perforated disk of FIGS. 2 and 3 is shown on a somewhat smaller scale than the cutting knives of FIGS. 4 and 9.
  • the retaining ring 12 With an outer diameter in the order of twelve cm, the retaining ring 12 preferably has eighteen teeth, with a tooth gap width 14 in the order of one cm.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)

Abstract

In order, in a machine for mincing, in particular for meat or the like with two cutting sets (4, 5) arranged one behind the other in the direction of passage (3) of the material for cutting and each consisting of a perforated disc (7) and a rotating cutter (6), to improve the passage of the material for cutting through the machine, in particular in the area of the first cutting set, a retaining ring (12) is arranged, viewed in the direction of passage (3), at least in front of the first perforated disc (7). Said ring is equipped with a multiplicity of approximately radial retaining teeth (13), the width of the tooth gaps corresponding approximately to the tooth width viewed in the circumferential direction and the cutter element projecting into the retaining ring (12). It is advantageous that the cutter (6) has more than two, preferably five to twelve arms with at least one in-set interchangeable blade in each case. <IMAGE>

Description

Die Erfindung bezieht sich auf eine Zerkleinerungsmaschine, ins­besondere für Fleisch und dgl. mit zwei in Durchlaufrichtung des Schneidgutes hintereinander angeordneten, je aus einer Lochscheibe und einem rotierenden Schneidmesser bestehenden Schneidsätzen. Üblicherweise dient, in Durchlaufrichtung gesehen, der erste Schneidsatz zum Vorschneiden des Zerkleinerungsguts, während es im zweiten Schneidsatz fein zerkleinert wird. das Schneidgut wird der Maschine in der Regel über einen Trichter zugeführt, und es besteht im Falle der fleischverarbeitenden In­dustrie aus verhältnismäßig großen Fleischbrocken, Flechsen, Schwarten und anderen Teilen des Schlachtviehs. Insbesondere auf­grund des Fettanteils neigen diese Teile zum Anhaften an den Wän­den ihres Durchlaufwegs und man muß deshalb für geeignete Mittel zum Weitertransport sorgen. Teilweise reicht hierzu das Gewicht der im Trichter befindlichen Masse aus. Ein weiteres Problem liegt darin, daß das Zerkleinerungsgut beim Ankommen am ersten Schneidsatz durch die Lücken zwischen den Armen des Schneidmes­sers hindurch zur Lochscheibe transportiert werden muß, weil, in Durchlaufrichtung gesehen, das Schneidmesser der Lochscheibe des betreffenden Schneidsatzes vorgelagert ist. Aufgrund der hohen Drehzahl des Schneidmessers und der Haftfähigkeit des Schneidgu­tes neigt dieses zum Rotieren im Bereich des Schneidmessers. Dies mindert die Schneidleistung und bringt auch eine unerwünschte örtliche Erwärmung mit sich.The invention relates to a shredding machine, in particular for meat and the like. With two cutting sets arranged one behind the other in the direction of throughput of the material to be cut, each consisting of a perforated disc and a rotating cutting knife. Usually seen in the direction of flow, the first cutting set serves to pre-cut the material to be comminuted, while it is finely comminuted in the second cutting set. the material to be sliced is usually fed to the machine via a hopper and, in the meat processing industry, it consists of relatively large chunks of meat, braids, rinds and other parts of the slaughter cattle. In particular due to the fat content, these parts tend to adhere to the walls of their passage and it is therefore necessary to provide suitable means for further transport. The weight of the mass in the funnel is sufficient for this. Another problem lies in the fact that the material to be comminuted has to be transported through the gaps between the arms of the cutting knife to the perforated disk when it arrives at the first cutting set because, seen in the direction of travel, the cutting knife is upstream of the perforated disk of the relevant cutting set. Due to the high speed of the cutting knife and the adhesion of the material to be cut, it tends to rotate in the area of the cutting knife. This reduces the cutting performance and also brings about undesirable local heating.

Die Aufgabe der Erfindung besteht nun darin, die Zerkleinerungs­maschine der eingangs genannten Art so weiterzubilden, daß der Durchlauf des Schneidguts durch die Maschine insbesondere im Be­reich des ersten Schneidesatzes verbessert wird.The object of the invention is to develop the comminution machine of the type mentioned at the outset in such a way that the passage of the material to be cut through the machine is improved, in particular in the region of the first cutting set.

Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß die Zerkleinerungsmaschine gemäß dem Oberbegriff des Anspruchs 1 entsprechend dem kennzeichnenden Teil dieses Anspruchs ausgebil­ det ist. Nachdem sich nunmehr in Durchlaufrichtung gesehen, zu­mindest vor der ersten Lochscheibe ein Stauring mit einer Viel­zahl von Stauzähnen befindet, wird durch letztere dem vom umlau­fenden Schneidmesser erfaßten Schneidgut in Drehrichtung gesehen ein erheblicher Widerstand entgegegengeßetzt, so daß ein Mitdre­hen zumindest reduziert, Vorzugsweise aber ganz ausgeschaltet wird. Infolgedessen muß das Schneidgut, auf welches von innen her ein gewisser Vorschubdruck ausgeübt wird, zur Lochscheibe weiter­wandern und es wird dann dort von den Schneiden des Schneidmes­sers erfaßt. Es durchläuft die erste Lochscheibe und gelangt an­schließend zum nächstfolgenden Schneidsatz. Wenn man auch dort einen derartigen Stauring anbringt, wird ein Drehen des vorzer­kleinerten Guts auch zwischen den beiden Schneidsätzen verhindert und dadurch auch an dieser Stelle der Zerkleinerungsmaschine ein Stau unterbunden. Die Staugefahr ist allerdings vor dem ersten Schneidsatz wesentlich größer als vor dem zweiten oder einem ge­gebenenfalls dritten Schneidsatz. Weil der Schneidmesserkörper in den Stauring hineinreicht, wird der in letzterem vorhandene In­nenraum zwangsläufig verkleinert, was zwar nicht den Durchsatz des Schneidgutes behindert, aber dem Festsetzen des Schneidgutes an dieser Stelle entgegenwirkt.To achieve this object, it is proposed according to the invention that the shredding machine according to the preamble of claim 1 according to the characterizing part of this claim det. Now that in the direction of flow, at least in front of the first perforated disc, there is a congestion ring with a large number of jamming teeth, the latter presents a considerable resistance in the direction of rotation to the material to be gripped by the rotating cutting knife, so that turning along is at least reduced, but preferably completely switched off . As a result, the material to be cut, to which a certain feed pressure is exerted from the inside, has to migrate further to the perforated disc, where it is then gripped by the cutting edges of the cutting knife. It passes through the first perforated disc and then arrives at the next cutting set. If a retaining ring of this type is also installed there, the pre-shredded material is also prevented from rotating between the two cutting sets and a jam is also prevented at this point in the shredding machine. However, the risk of jamming is significantly greater before the first cutting set than before the second or possibly a third cutting set. Because the cutting knife body extends into the retaining ring, the interior space present in the latter is inevitably reduced, which does not hinder the throughput of the material to be cut, but counteracts the setting of the material to be cut at this point.

Eine weitere Ausgestaltung der Erfindung sieht vor, daß die Zahn­lücken konstante Breite aufweisen. Dies hat den Vorzug, daß man den Stauring aus hochwertigem Material fertigen kann und sich die Zähne durch Fräsen der Zahnlücken erstellen oder zumindest fertig bearbeiten lassen. Bei konstant breiten Zahnlücken werden zwangs­läufig die Zähne - bezogen auf ihren Fuß - keilförmig, weil sie sich ja in radialer Richtung erstrecken und sich diese Form am Zahnfuß somit allein aus geometrischen Gründen ergibt.Another embodiment of the invention provides that the tooth gaps have a constant width. This has the advantage that the storage ring can be made of high quality material and the teeth can be created by milling the tooth gaps or at least done have it edited. In the case of tooth gaps of constant width, the teeth inevitably become wedge-shaped in relation to their base, because they extend in the radial direction and this shape on the base of the tooth thus results solely from geometric reasons.

Die Stauzähne sind in Weiterbildung der Erfindung im wesentlichen dem an der Zuströmseite gelegenen Teil des Stauringes, insbeson­dere der zuströmseitigen Ringhälfte zugeordnet, wobei sie oder ein zuströmseitiger Zahnteil in einer Seitenansicht eine im we­sentlichen dreieckige Form aufweisen. Diese Ausgestaltung ermög­licht eine entsprechend günstige Form des in den Stauring hinein­ragenden Schneidmessers. Auch in Durchlaufrichtung betrachtet ist diese Form zweckmäßig, weil die Zahnlücken gewissermaßen in Um­frangsrichtung versetzt angeordnete Teile eines sich trichterför­mig errweiternden Durchlasses bilden.In a further development of the invention, the damming teeth are essentially assigned to the part of the retaining ring located on the inflow side, in particular the inflow-side ring half, wherein they or an inflow-side tooth part have an essentially triangular shape in a side view. This configuration enables a correspondingly favorable shape of the cutting knife protruding into the retaining ring. This shape is also useful when viewed in the direction of passage because the tooth gaps form parts of a funnel-shaped passage that are staggered in the circumferential direction.

Hieraus resultiert auch eine weitere Variante der Erfindung, wel­che darin besteht, daß die Innenkontur im Bereich jedes Stauzah­nes etwa bogen- oder winkelförmig ist, wobei der Winkel über­stumpf ist. Denkbar ist auch eine Mischform dieser beiden Kontu­renarten, daß heißt der übergang von einem Bogen in einen geraden Winkelschenkel, jedoch gilt auch hier, daß ingesamt ein über­stumpfer Winkel vor einem vorzugsweise etwa 130° bis 150° vor­liegt.This also results in a further variant of the invention, which consists in the fact that the inner contour in the region of each ram tooth is approximately arcuate or angular, the angle being obtuse. A mixed form of these two types of contours is also conceivable, that is to say the transition from an arc to a straight angled leg, but it also applies here that an obtuse angle is present overall in front of a preferably approximately 130 ° to 150 °.

Bei einer bevorzugten Ausführungsart der Erfindung weist der Schneidmesserkörper in Achsrichtung gemessen höchstens etwa die gleiche Höhe auf, wie der Stauring. Eine andere Ausgestaltung der Erfindung ergibt sich aus Anspruch 6. Weil dabei der Schneid­messerkörper etwa mit seiner gesamten Höhe in den Stauring ein­greift, baut die Maschine in diesem Bereich sehr kompakt. Vor­zugsweise haben ein Hüllkörper um das Schneidmesser zumindest im Bereich der Schneidmesserarme und ein innerer Hüllkörper im Be­reich der Stauzähne im Überlappungsbereich eine etwa gleiche Form. Beide haben voneinander einen möglichst geringen Spaltab­stand.In a preferred embodiment of the invention, the Cutting knife body measured in the axial direction at most about the same height as the baffle ring. Another embodiment of the invention results from claim 6. Because the cutting knife body engages approximately with its entire height in the retaining ring, the machine is very compact in this area. Preferably, an enveloping body around the cutting knife at least in the area of the cutting knife arms and an inner enveloping body in the area of the jam teeth in the overlap area have approximately the same shape. Both have the smallest possible gap distance from each other.

Das Schneidmesser weist in bevorzugter Art mehr als zwei, vor­zugsweise fünf bis zwölf Arme, mit wenigstens je einer eingesetz­ten auswechselbaren Klinge auf. Je höher die Armzahl und damit auch die Zahl der Messerklingen, umso größer ist die Schneidlei­stung dieses Schneidsatzes. Andererseits richtet sich aber die Zahl der Arme auch nach dem hauptsächlich verwendeten Schneidgut. Die Herstellungskosten dieser Maschine steigen mit zunehmender Armzahl, weswegen man auch in dieser Richtung die Auswahl sorg­fältig treffen sollte. Die Klingen sind in bekannter Weiße auß­wechselbar, so daß man sie bei Beschädigung oder wenn sie stumpf sind herausnehmen und durch neue oder nachgeschliffene ersetzen kann. Insoweit wird auf die bekannten Ausgestaltungen verwiesen.The cutting knife preferably has more than two, preferably five to twelve arms, each with at least one interchangeable blade inserted. The higher the number of arms and thus the number of knife blades, the greater the cutting performance of this cutting set. On the other hand, the number of arms also depends on the material to be cut. The manufacturing costs of this machine increase with the number of arms, which is why the selection should be made carefully in this direction. The blades are interchangeable in known whites, so that they can be removed in the event of damage or if they are blunt and replaced with new or reground ones. In this regard, reference is made to the known configurations.

Die Erfindung wird nachstehend anhand der Zeichnung näher erläu­tert. Die Zeichnung zeigt ein Ausführungsbeispiel der Erfindung.The invention is explained below with reference to the drawing. The drawing shows an embodiment of the invention.

Hierbei stellen dar:

  • Fig. 1: in einem abgebrochenen Längsmittelschnitt durch die Zerkleinerungsmaschine im Bereich der Schneid­sätze,
  • Fig. 2: eine Draufsicht auf den Stauring,
  • Fig. 3: einen Schnitt gemäß der Linie III-III der Fig. 2,
  • Fig. 4: eine Seitenansicht des sternförmigen Schneidmessers,
  • Fig. 5: eine Draufsicht auf das Messer der Fig. 4,
  • Fign. 6 und 7 Draufsichten auf zwei weitere Ausführungsformen dieses Schneidmessers,
  • Fign. 8 und 9 Seitenansichten der Schneidmesser nach den Fign. 6 bzw. 7.
Here represent:
  • 1: in a broken longitudinal central section through the shredding machine in the area of the cutting sets,
  • 2: a top view of the storage ring,
  • 3 shows a section along the line III-III of FIG. 2,
  • 4: a side view of the star-shaped cutting knife,
  • 5: a top view of the knife of FIG. 4,
  • Fig. 6 and 7 are plan views of two further embodiments of this cutting knife,
  • Fig. 8 and 9 side views of the cutting knives according to FIGS. 6 or 7.

Das Zerkleinerungsgut wird in den Trichter 1 der Zerkleinerungs­maschine 2 automatisch oder von Hand eingefüllt und durchläuft sie im Sinne der Pfeile, von denen der erste in Fig. 1 mit 3 be­zeichnet ist. Die Stärke der Pfeile deutet sinngemäß an, daß das Zer­ kleinerungsgut in dieser Zerkleinerungsmaschine in zwei Stufen zerkleinert wird. Zu diesem Zwecke ist diese Zerkleinerungsma­schine mit zwei in Durchlaufrichtung 3 hintereinander angeordne­ten Schneidsätzen 4 und 5 ausgestattet. Der erste Schneidsatz 4 besteht aus dem ersten Schneidmesser 6 und der ersten Lochscheibe 7, während dem zweiten Schneidsatz 5 das zweite Schneidmesser 8 und die zweite Lochscheibe 9 angehören. Die Schneidmesser sitzen drehfest auf einer gemeinsamen Antriebswelle 10, die vom nicht dargestellten Antriebsmotor, insbes. Elektromotor, der Zerkleine­rungsmaschine 2 angetrieben werden. Demgegenüber sind die Loch­scheiben 7 und 9 drehfest im Gehäuse 11 der Zerkleinerungsma­schine 2 gehalten.The material to be comminuted is filled into the hopper 1 of the comminution machine 2 automatically or by hand and passes through it in the direction of the arrows, the first of which is denoted by 3 in FIG. 1. The strength of the arrows indicates that the Zer material to be shredded is shredded in two stages in this shredding machine. For this purpose, this shredding machine is equipped with two cutting sets 4 and 5 arranged one behind the other in the direction of flow 3. The first cutting set 4 consists of the first cutting knife 6 and the first perforated disk 7, while the second cutting set 5 includes the second cutting knife 8 and the second perforated disk 9. The cutting knives sit in a rotationally fixed manner on a common drive shaft 10, which are driven by the drive motor (not shown), in particular the electric motor, of the comminution machine 2. In contrast, the perforated discs 7 and 9 are held in a rotationally fixed manner in the housing 11 of the comminution machine 2.

Um ein Mitdrehen des Zerkleinerungsguts im Bereich des ersten Schneidsatzes 4 zu vermeiden ist in Durchlaufrichtung 3, gesehen von der ersten Lochscheibe 7, ein Stauring 12 eingebaut, der in den Fign. 2 und 3 vergrößert dargestellt ist. Er besitzt eine Vielzahl von etwa radialen Stauzähnen 13. Im Umfangsrichtung ge­sehen ist die Breite der Zahnlücken 14 benachbarter Zähne etwa gleich groß wie die Lückenbreite. Weil aber die Breite der Zahn­lücken beim Ausführungsbeispiel konstant gewählt ist, bezieht sich diese Feststellung dort etwa auf die Zahnbreite am Außenum­fang des Staurings 12.In order to prevent the comminution material from rotating in the area of the first cutting set 4, a baffle ring 12 is installed in the direction of passage 3, seen from the first perforated disc 7, which is shown in FIGS. 2 and 3 is shown enlarged. It has a large number of approximately radial ram teeth 13. Viewed in the circumferential direction, the width of the tooth gaps 14 of adjacent teeth is approximately the same as the gap width. However, because the width of the tooth gaps in the exemplary embodiment is chosen to be constant, this determination relates there approximately to the tooth width on the outer circumference of the retaining ring 12.

Fig. 3 entnimmt man, daß die Zähne 13 im wesentlichen der Zu­strömseite 15 des Ringes zugeordnet sind. Auf Grund der besonde­ ren Formgebung des Ringquerschnitt besteht jeder Zahn beim Aus­führungsbeispiel der Fig. 3 aus einem in Seitenansicht etwa drei­eckförmigen ersten Zahnteil 16 und einem zweiten Zahnteil 17 etwa ähnlicher Querschnittsform, wobei die Spitzen einander zugekehrt sind. Die Kontur des Zahnfusses 18 ist bogenförmig, weil die Zäh­ne, wie gesagt, gefräst werden, insbesondere mit Hilfe eines Scheibenfräsers. Um das Innere des Staurings 12 an die Außenkon­tur, insbesondere eine Umhüllende des zugehörigen Schneidmessers 6 bzw. 8 anpassen zu können, welches im Betrieb in den Stauring wenigstens teilweise eindringt, wurde beim Ausführungsbeispiel der Fig. 3 eine Innenkontur gewählt, die aus zwei winklig zuein­ander stehenden Konusflächen besteht, wobei der von beiden einge­schlossene Winkel dort mit 19 bezeichnet ist.Fig. 3 shows that the teeth 13 are essentially assigned to the inflow side 15 of the ring. Because of the special Ren shape of the ring cross-section, each tooth in the embodiment of FIG. 3 consists of a first tooth part 16 approximately triangular in side view and a second tooth part 17 of approximately similar cross-sectional shape, the tips facing each other. The contour of the tooth base 18 is arch-shaped because the teeth are, as said, milled, in particular with the help of a disc milling cutter. In order to be able to adapt the inside of the retaining ring 12 to the outer contour, in particular an envelope of the associated cutting knife 6 or 8, which at least partially penetrates the retaining ring during operation, an inner contour was selected in the exemplary embodiment of FIG. 3, which consists of two at an angle to one another standing conical surfaces, the angle enclosed by both being designated there by 19.

Der Schneidmesserkörper 20 ist bei allen Ausführungsbeispielen sternförmig. In Achsrichtung gemessen besitzt er höchstens etwa die gleiche Höhe wie der Stauring 12. Beim Ausführungsbeispiel ist die Höhe des Staurings um etwa ein Drittel größer als dieje­nige des Schneidmesserkörpers 20. Letzterer ragt aber, wie Fig. 1 der Zeichnung zeigt, mit seiner gesamten Höhe in den Stauring 20 hinein. Dadurch ist die erwähnte Anpassung der Außenkontur des Schneidmesserkörpers 20 an die Innenkontur des Staurings 12 er­forderlich, soweit beide einander unmittelbar zugeordnet sind. Man erkennt beispielsweise aus Fig. 4, daß dort ein umhüllender gedachter Körper des Schneidmesserkörpers 20 in etwa den gleichen Winkel 23 aufweist, wie der Winkel 19 der Innenkontur des Stau­ rings 12. In jeden Arm 24 des Schneidmesserkörpers 20 ist eine auswechselbare Klinge 25 eingesetzt.The cutting knife body 20 is star-shaped in all exemplary embodiments. Measured in the axial direction, it has at most approximately the same height as the retaining ring 12. In the exemplary embodiment, the height of the retaining ring is approximately one third greater than that of the cutting knife body 20. The latter, however, protrudes with its entire height, as shown in FIG. 1 of the drawing the storage ring 20 into it. As a result, the aforementioned adaptation of the outer contour of the cutting knife body 20 to the inner contour of the retaining ring 12 is necessary insofar as both are directly associated with one another. It can be seen, for example, from FIG. 4 that there an enveloping imaginary body of the cutting knife body 20 has approximately the same angle 23 as the angle 19 of the inner contour of the jam rings 12. A replaceable blade 25 is inserted into each arm 24 of the cutting blade body 20.

Theoretisch reicht ein einziger Arm des Schneidmessers 6 bzw. 8 aus, jedoch wird schon allein aus dynamischen Gründen eine rota­tionssymetrische Ausbildung bevorzugt. Bislang waren Schneidmes­ser mit zwei Armen die bevorzugte Ausführungsform. Wenn man stattdessen eine größere Armzahl beispielsweise wie bei den Aus­führungsbeispielen von 5 bis 9 wählt, erhöht sich die Effektivi­tät des Schneidsatzes.Theoretically, a single arm of the cutting knife 6 or 8 is sufficient, but a rotation-symmetrical design is preferred for dynamic reasons alone. So far, two-arm cutting knives have been the preferred embodiment. If instead a larger number of arms is selected, for example as in the exemplary embodiments from 5 to 9, the effectiveness of the cutting set increases.

Zwischen den beiden Schneidsätzen 4 und 5 befindet ein Stützring 26. Man kann auch diesen in der Art des Staurings 12 ausbilden.A support ring 26 is located between the two cutting sets 4 and 5. This can also be designed in the manner of the retaining ring 12.

In Fig. 1 sind die richtigen Größenverhältnisse von Schneidmesser und Lochscheibe zu sehen. Die Lochscheibe der Fig. 2 und 3 ist demgegenüber in einem etwas kleineren Maßstab dargestellt als die Schneidmesser der Fign. 4 und 9.In Fig. 1 the correct proportions of cutting knife and perforated disc can be seen. The perforated disk of FIGS. 2 and 3, on the other hand, is shown on a somewhat smaller scale than the cutting knives of FIGS. 4 and 9.

Bei einem Außendurchmesser in der Größenordnung von zwölf cm be­sitzt der Stauring 12 vorzugsweise achtzehn Zähne, bei einer Zahnlückenbreite 14 in der Größenordnung von einem cm.With an outer diameter in the order of twelve cm, the retaining ring 12 preferably has eighteen teeth, with a tooth gap width 14 in the order of one cm.

Claims (7)

1. Zerkleinerungsmaschine insbesondere für Fleisch und dgl., mit zwei in Durchlaufrichtung (3) des Schneidgutes hintereinander angeordneten, je aus einer Lochscheibe (7, 9) und einem rotieren­den Schneidmesser (6, 8) bestehenden Schneidsätzen (4, 5), da­durch gekennzeichnet, daß in Durchlaufrichtung (3) gesehen zumin­dest vor der ersten Lochscheibe (7) ein Stauring (12) angeordnet ist, der mit einer Vielzahl, vorzugsweise etwa acht bis zwanzig, von etwa radialen Stauzähnen (13) ausgestattet ist, wobei in Um­fangsrichtung gesehen die Breite der Zahnlücken etwa der Zahn­breite (14) entspricht und der Schneidmesserkörper (20) in den Stauring (12) hineinragt.1. Shredding machine, in particular for meat and the like. With two consecutively arranged in the direction of passage (3) of the material to be cut, each consisting of a perforated disc (7, 9) and a rotating cutting knife (6, 8), consisting of cutting sets (4, 5), characterized that, seen in the direction of passage (3), at least in front of the first perforated disc (7), a retaining ring (12) is arranged, which is equipped with a large number, preferably approximately eight to twenty, of approximately radial ram teeth (13), the circumferential direction being the The width of the tooth gaps corresponds approximately to the tooth width (14) and the cutting knife body (20) protrudes into the retaining ring (12). 2. Zerkleinerungsmaschine nach Anspruch 1, dadurch gekennzeich­net, daß die Zahnlücken konstante Breite aufweisen.2. Shredding machine according to claim 1, characterized in that the tooth gaps have a constant width. 3. Zerkleinerungsmaschine nach Anspruch 1 oder 2, dadurch ge­kennzeichnet, daß die Stauzähne (13) im wesentlichen dem an der Zuströmseite (15) gelegenen Teil des Staurings (12), insbesondere der zuströmseitigen Ringhälfte, zugeordnet sind, und sie oder ein zuströmseitiger Zahnteil (16) in einer Seitenansicht eine im we­sentlichen dreieckige Form aufweisen.3. Comminution machine according to claim 1 or 2, characterized in that the ram teeth (13) are essentially assigned to the part of the storage ring (12) located on the inflow side (15), in particular the inflow ring half, and they or a Upstream tooth part (16) have a substantially triangular shape in a side view. 4. Zerkleinerungsmaschine nach wenigstens einem der vorherge­henden Ansprüche, dadurch gekennzeichnet, daß die Innenkontur im Bereich jedes Stauzahns (13) etwa bogen- oder winkelförmig ist, wobei der Winkel (19) überstumpf ist.4. Shredding machine according to at least one of the preceding claims, characterized in that the inner contour in the region of each ram tooth (13) is approximately arcuate or angular, the angle (19) being truncated. 5. Zerkleinerungsmaschine nach wenigstens einem der vorherge­henden Ansprüche, dadurch gekennzeichnet, daß der Schneidmesser­körper (20) in Achsrichtung gemessen höchstens etwa die gleiche Höhe aufweisen wie der Stauring (12).5. Shredding machine according to at least one of the preceding claims, characterized in that the cutting knife body (20) measured in the axial direction have at most about the same height as the baffle ring (12). 6. Zerkleinerungsmaschine nach Anspruch 5, dadurch gekennzeich­net, daß der Schneidmesserkörper (20) etwa mit seiner gesamten Höhe in den Stauring (12) eingreift, wobei ein gedachter Hüllkör­per um den aus Nabe (21) und etwa radial abstehenden Armen (22) bestehenden Schneidmesserkörper (20) einen Spaltabstand von der Innenkontur des Staurings (12) aufweist.6. Comminution machine according to claim 5, characterized in that the cutting knife body (20) engages approximately with its entire height in the retaining ring (12), an imaginary enveloping body around the cutting knife body consisting of the hub (21) and approximately radially projecting arms (22) (20) has a gap distance from the inner contour of the retaining ring (12). 7. Zerkleinerungsmaschine nach Anspruch 6, dadurch gekennzeich­net, daß das Schneidmesser (6, 8) mehr als zwei, vorzugsweise fünf bis zwölf, Arme (20) mit wenigstens je einer eingesetzten auswechselbaren Klinge (25) aufweist.7. Shredding machine according to claim 6, characterized in that the cutting knife (6, 8) has more than two, preferably five to twelve, arms (20) with at least one interchangeable blade (25) each.
EP90117896A 1989-09-23 1990-09-18 Meat-mincing machine Expired - Lifetime EP0420001B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8911353U 1989-09-23
DE8911353U DE8911353U1 (en) 1989-09-23 1989-09-23 Chopping machine, especially for meat etc.

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EP0420001A1 true EP0420001A1 (en) 1991-04-03
EP0420001B1 EP0420001B1 (en) 1994-10-26

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5699970A (en) * 1996-07-11 1997-12-23 2 M Tool Co., Inc. Meat-comminuting machine with improved vacuum discharge mechanism
WO1998023377A1 (en) * 1996-11-28 1998-06-04 Eduard Fedorovich Syrovatsky Method of grinding meat and meat grinder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665725A (en) * 1953-04-10 1954-01-12 Globe Slicing Machine Co Inc Food chopper
DE1632132A1 (en) * 1967-10-12 1970-10-29 Strojirny Potravinarskeho Prum Method and device for particularly fine mincing of meat
EP0249840A2 (en) * 1986-06-19 1987-12-23 Karl Schnell GmbH &amp; Co. Maschinenfabrik Device for automatically adjusting the knives of a meat-mincing machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665725A (en) * 1953-04-10 1954-01-12 Globe Slicing Machine Co Inc Food chopper
DE1632132A1 (en) * 1967-10-12 1970-10-29 Strojirny Potravinarskeho Prum Method and device for particularly fine mincing of meat
EP0249840A2 (en) * 1986-06-19 1987-12-23 Karl Schnell GmbH &amp; Co. Maschinenfabrik Device for automatically adjusting the knives of a meat-mincing machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5699970A (en) * 1996-07-11 1997-12-23 2 M Tool Co., Inc. Meat-comminuting machine with improved vacuum discharge mechanism
WO1998023377A1 (en) * 1996-11-28 1998-06-04 Eduard Fedorovich Syrovatsky Method of grinding meat and meat grinder

Also Published As

Publication number Publication date
ES2066074T3 (en) 1995-03-01
EP0420001B1 (en) 1994-10-26
DE59007555D1 (en) 1994-12-01
DE8911353U1 (en) 1989-11-02

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