EP2892650B1 - Blade assembly for a meat mincing machine - Google Patents

Blade assembly for a meat mincing machine Download PDF

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Publication number
EP2892650B1
EP2892650B1 EP13753171.1A EP13753171A EP2892650B1 EP 2892650 B1 EP2892650 B1 EP 2892650B1 EP 13753171 A EP13753171 A EP 13753171A EP 2892650 B1 EP2892650 B1 EP 2892650B1
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EP
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Prior art keywords
knife
knives
set according
previous
blades
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EP13753171.1A
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German (de)
French (fr)
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EP2892650A1 (en
Inventor
Wolfgang Greiner
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Heinrich GmbH
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Heinrich GmbH
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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
    • B02C18/36—Knives or perforated discs
    • B02C18/362—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
    • B02C18/30—Mincing machines with perforated discs and feeding worms
    • B02C18/36—Knives or perforated discs
    • B02C18/365—Perforated discs
    • 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
    • B02C2018/308—Mincing machines with perforated discs and feeding worms with separating devices for hard material, e.g. bone
    • 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
    • B02C2018/367—Resiliently mounted knives or discs

Definitions

  • a meat grinder is used for crushing meat, especially in sausage production. Since the meat may also contain tendons and cartilage, comminution is generally carried out by a plurality of knife sets arranged one behind the other, consisting of a perforated disc and a rotating knife arranged in front of it.
  • the knives themselves are formed by knife holders having a plurality of arms projecting outwardly from a hub with knife blades attached, the knife blades extending parallel to the arms.
  • the knives are clamped with a high contact pressure in the axial direction with the perforated discs in order to obtain a high cutting performance. This creates high frictional forces between the blades and the perforated disc. Perforated discs and knife blades wear out relatively quickly and the resulting metal abrasion gets into the sausage mass.
  • a knife set has been proposed, in which the knife blades are arranged axially movable on the knife holder and are pressed by the working pressure of the material to be cut against the perforated disc.
  • the knife holders no longer have to be preloaded axially against the perforated disks, whereby the friction losses can be noticeably reduced.
  • a knife set according to the preamble of claim 1 is of GB 363,229 . US 1 889 381 and DE 577 208 known.
  • the present invention has for its object to provide a blade set, in which the wear of the perforated discs and knife blades over the known solutions is further reduced.
  • the object is achieved by a knife set according to claim 1.
  • the rotatably mounted knives which in turn are moved along the perforated disk by the knife holder, result in significantly better cutting performance, as has been shown in experiments.
  • the material to be cut is actually shredded to a significantly higher percentage in this knife set by cutting and not crushing than in known knife sets. This also results in less wear both the perforated disc and the knife.
  • the drive power of the meat grinder can be reduced.
  • less heat is generated by the friction between the knife blades and the perforated disc and thus less heating of the material to be cut, which benefits the sausage quality.
  • the axes of rotation of the blades may preferably be arranged on one or more circles about the shaft axis of the meat grinder. It is also advantageous if the blades each have the same angular distance.
  • the blades are rotationally symmetrical.
  • they can be round or polygonal. They can thereby easily and uniformly rotate through the cutting material held by the perforated disk, as they are moved along the perforated disk by the knife holder.
  • the knives are easy to clean in this configuration. It is advantageous if the blades are provided with blades at their periphery. The resulting pressure distribution between knives and perforated disc is cheaper than in the radially outward blades of known sets of knives. The result is a sheet-like load of the disc instead of a linear load, which further reduces the deformation and thus the wear of the perforated disc. In addition, thinner perforated discs can be used than in known knife sets.
  • the knife foot may preferably be round, while the blades may also be arranged, for example, on a polygon about the axis of rotation of the knife.
  • the blades have a plurality of blades each provided with blades, the blades being disposed on the radially outer periphery of the blades.
  • the wings can also have different lengths.
  • the blades may preferably form a cutting angle of 30 ° to 60 ° with the perforated disc. Very good results have been found in experiments with cutting angles of 45 °. On the other hand, in conventional knife sets, the cutting angles are significantly larger, which leads to poorer cutting results. The blades sharpen themselves during the cutting process on the harder perforated disc. Even with wear, the cutting angle is maintained.
  • blades are arranged interchangeable by means of a plug connection to the knife holder. They can be easily replaced and cleaned.
  • the blades are arranged axially movable in the knife holder. As a result, only a cutting action occurs when the material to be cut is pressed against the knife. The working pressure of the conveyed by a screw of the mincer cutting material is sufficient to produce a clean cutting action. If no material to be cut is fed, the friction between the perforated disc and the blade is minimal.
  • the knife holder may preferably be disc-shaped in order to ensure a flat and compact design of the knife set.
  • the assembly of the knife set is thus easy.
  • Particularly advantageous is an embodiment of the knife holder with a plurality of wings, on each of which at least one knife is arranged.
  • the wings can be kept relatively narrow, so that the passage of the material to be cut to the perforated disc is hardly hindered by the knife holder.
  • the knife holder and / or the knives have openings for removing non-comminuted material to be cut.
  • Such openings may be arranged, for example, near the axis of rotation of the knife or the knife holder. From there, the separated parts such as tendons or cartilage can be removed, for example via a tube, so that they do not clog the knife set.
  • the knife set can comprise two perforated disks in a manner known per se with knife holders with knives arranged in front of it, wherein the perforated disks have an increasingly smaller hole diameter in the direction of passage of the material to be cut.
  • Fig. 1 shows a blade set 10, which in the example shown two perforated discs 12, 14, each with previously arranged knife holders 11, 13 has.
  • the blade set 10 is on a shaft 15 a Meat grinder worm 16 is placed, wherein the knife holder 11, 13 are driven in rotation together with the worm 16.
  • the perforated disks 12, 14 have in the example shown two radially spaced rows of holes 17, 18 and 19, 20.
  • the knife holders 11, 13 have three wings, of which two wings 21, 22 and 23, 24 can be seen in the side view.
  • Each wing 21, 22, 23, 24 carries a knife 25, 26, 27, 28, whose shape and storage on the basis of the enlarged view of the knife holder 11 in Fig. 1 and based Fig. 2 be described in more detail.
  • the wings 21, 22, 23, 24 are the same length in the example shown, and preferably each spaced by 120 ° from each other.
  • the axes R ( Fig. 2 ) of the knives 25, 26, 27, 28 are therefore on a circle about the shaft axis W, so that the knives 25, 26, 27, 28 on the Lines 17, 18, 19, 20 are moved away, when the knife holder 11, 13 rotate about the shaft axis W of the meat grinder.
  • the knives 25, 26, 27, 28 could also be located on different circles.
  • the Fig. 1 also clarifies that the knives 25, 26, 27, 28 are arranged in the unloaded state with a small axial distance a in front of the perforated discs 12, 14 when no cutting material is to be processed.
  • the meat grinder with the knife set 10 according to the invention can therefore run wear-free even without material.
  • Fig. 2 illustrates the storage of the knives 25 to 28 in the knife holders 11, 13 using the example of the knife 26.
  • the knife 26 has a round foot 29 which is inserted into a round through hole 30 in the wing 21 and there by a sealing ring 31 axially movable and rotatable is stored.
  • the foot 29 may also perform limited tilting movements in the somewhat larger diameter bore 30 so that the knife 26 also is stored floating in the knife holder 11. Due to the simple plug connection between the knife 26 and the knife holder 11, easy assembly and exchangeability of the knife 26 is provided.
  • the sealing ring 31 also prevents the ingress of meat pieces.
  • the knife 26 also has a relief surface E whose size depends on the material to be cut.
  • the axial mobility allows pressing of the blade 26 by the transported in the direction of arrow 32 Schneidgut against the perforated disc 12.
  • the floating bearing, the knife can thereby also fully rest against the perforated disc 11, if it is not exactly aligned parallel to the blade holder 11.
  • the material to be cut can set the knife 26 in rotation, resulting in a very good quality cut, as experiments have shown.
  • the material held by the apertured disc 12 from the apertures 19, 20 is actually cut to a significantly higher percentage and not crushed by squeezing, as is the case with conventional knife sets.
  • the knife 26 has three wings 33, 34, 35 which carry at their outer periphery respectively blades 36, 37, 38, which are provided in the example shown with a serrated edge.
  • the blades 36, 37, 38 are circular arc-shaped and all have the same radial distance to the axis of rotation A of the knife 26th
  • the illustrated blade shape is merely exemplary.
  • the shape of the knife 26 can be selected according to the material to be cut and the final product to be produced. By the simple Plug connection between the knife 26 and knife holder 11, the knife can be replaced quickly against other shape knife.

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

Description

Ein Fleischwolf wird zur Zerkleinerung von Fleisch insbesondere in der Wurstherstellung eingesetzt. Da das Fleisch auch Sehnen und Knorpel enthalten kann, wird in der Regel eine Zerkleinerung durch mehrere hintereinander angeordnete Messersätze, bestehend aus einer Lochscheibe und einem davor angeordneten rotierenden Messer, durchgeführt. Die Messer selbst werden von Messerhaltern mit mehreren von einer Nabe nach außen ragenden Armen mit aufgesetzten Messerklingen gebildet, wobei sich die Messerklingen parallel zu den Armen erstrecken. Die Messer werden mit einem hohen Anpressdruck in axialer Richtung mit den Lochscheiben verspannt, um eine hohe Schneidleistung zu erhalten. Dadurch entstehen hohe Reibungskräfte zwischen den Klingen und der Lochscheibe. Lochscheiben und Messerklingen verschleißen daher relativ schnell und der entstehende Metallabrieb gelangt in die Wurstmasse. Zur Reduzierung dieser Probleme ist in der DE 44 37 144 A1 ein Messersatz vorgeschlagen worden, bei dem die Messerklingen axial beweglich am Messerhalter angeordnet sind und durch den Arbeitsdruck des Schneidgutes gegen die Lochscheibe gepresst werden. Die Messerhalter müssen hier nicht mehr axial gegen die Lochscheiben vorgespannt werden, wodurch sich die Reibungsverluste spürbar verringern lassen. Ein Messersatz gemäß dem Oberbegriff des Anspruchs 1 ist von GB 363 229 , US 1 889 381 und DE 577 208 bekannt. Der vorliegenden Erfindung liegt die Aufgabe zugrunde, einen Messersatz bereitzustellen, bei dem der Verschleiß der Lochscheiben und Messerklingen gegenüber den bekannten Lösungen weiter reduziert ist.A meat grinder is used for crushing meat, especially in sausage production. Since the meat may also contain tendons and cartilage, comminution is generally carried out by a plurality of knife sets arranged one behind the other, consisting of a perforated disc and a rotating knife arranged in front of it. The knives themselves are formed by knife holders having a plurality of arms projecting outwardly from a hub with knife blades attached, the knife blades extending parallel to the arms. The knives are clamped with a high contact pressure in the axial direction with the perforated discs in order to obtain a high cutting performance. This creates high frictional forces between the blades and the perforated disc. Perforated discs and knife blades wear out relatively quickly and the resulting metal abrasion gets into the sausage mass. To reduce these problems is in the DE 44 37 144 A1 a knife set has been proposed, in which the knife blades are arranged axially movable on the knife holder and are pressed by the working pressure of the material to be cut against the perforated disc. The knife holders no longer have to be preloaded axially against the perforated disks, whereby the friction losses can be noticeably reduced. A knife set according to the preamble of claim 1 is of GB 363,229 . US 1 889 381 and DE 577 208 known. The present invention has for its object to provide a blade set, in which the wear of the perforated discs and knife blades over the known solutions is further reduced.

Die Aufgabe wird durch einen Messersatz gemäß Anspruch 1 gelöst. Durch die drehbar gelagerten Messer, die ihrerseits vom Messerhalter an der Lochscheibe entlang bewegt werden, entsteht eine deutlich bessere Schneidleistung, wie sich in Versuchen gezeigt hat. Das Schneidgut wird bei diesem Messersatz zu einem deutlich höheren Prozentsatz tatsächlich durch Schneiden und nicht durch Quetschen zerkleinert als bei bekannten Messersätzen. Dadurch entsteht auch ein geringerer Verschleiß sowohl der Lochscheibe als auch der Messer. Es gelangt weniger metallischer Abrieb in die Wurstmasse. Die Antriebsleistung des Fleischwolfs kann reduziert werden. Weiter entsteht eine geringere Wärmeentwicklung durch die Reibung zwischen den Messerklingen und der Lochscheibe und damit auch eine geringere Erwärmung des Schneidgutes, was der Wurstqualität zugutekommt.The object is achieved by a knife set according to claim 1. The rotatably mounted knives, which in turn are moved along the perforated disk by the knife holder, result in significantly better cutting performance, as has been shown in experiments. The material to be cut is actually shredded to a significantly higher percentage in this knife set by cutting and not crushing than in known knife sets. This also results in less wear both the perforated disc and the knife. There is less metallic abrasion in the sausage meat. The drive power of the meat grinder can be reduced. Furthermore, less heat is generated by the friction between the knife blades and the perforated disc and thus less heating of the material to be cut, which benefits the sausage quality.

Zur Erzielung einer gleichmäßigen Überdeckung der Lochscheibe durch die drehbaren Messer können die Rotationsachsen der Messer vorzugsweise auf einem oder mehreren Kreisen um die Wellenachse des Fleischwolfs angeordnet sein. Dabei ist es weiter von Vorteil, wenn die Messer jeweils den gleichen Winkelabstand aufweisen.To achieve uniform coverage of the perforated disk by the rotatable blades, the axes of rotation of the blades may preferably be arranged on one or more circles about the shaft axis of the meat grinder. It is also advantageous if the blades each have the same angular distance.

Bei einer bevorzugten Ausgestaltung des Messersatzes sind die Messer drehsymmetrisch ausgebildet. Sie können insbesondere rund oder polygonförmig sein. Sie lassen sich dadurch leicht und gleichmäßig durch das von der Lochscheibe festgehaltene Schneidgut drehen, wenn sie vom Messerhalter an der Lochscheibe entlang bewegt werden. Außerdem sind die Messer bei dieser Ausgestaltung einfach zu reinigen. Dabei ist es von Vorteil, wenn die Messer an ihrem Umfang mit Klingen versehen sind. Die dadurch entstehende Druckverteilung zwischen Messern und Lochscheibe ist günstiger als bei den radial nach außen gerichteten Klingen bekannter Messersätze. Es ergibt sich eine flächenförmige Belastung der Scheibe anstelle einer linearen Belastung, was die Verformung und damit den Verschleiß der Lochscheibe weiter verringert. Außerdem können dünnere Lochscheiben eingesetzt werden als bei bekannten Messersätzen. Der Messerfuß kann vorzugsweise rund sein, während die Klingen auch beispielsweise auf einem Polygon um die Rotationsachse des Messers angeordnet sein können. Erfindungsgemäß weisen die Messer mehrere Flügel auf, die jeweils mit Klingen versehen sind, wobei die Klingen am radial äußeren Umfang der Flügel angeordnet sind. Dabei können die Flügel auch unterschiedliche Längen aufweisen.In a preferred embodiment of the blade set, the blades are rotationally symmetrical. In particular, they can be round or polygonal. They can thereby easily and uniformly rotate through the cutting material held by the perforated disk, as they are moved along the perforated disk by the knife holder. In addition, the knives are easy to clean in this configuration. It is advantageous if the blades are provided with blades at their periphery. The resulting pressure distribution between knives and perforated disc is cheaper than in the radially outward blades of known sets of knives. The result is a sheet-like load of the disc instead of a linear load, which further reduces the deformation and thus the wear of the perforated disc. In addition, thinner perforated discs can be used than in known knife sets. The knife foot may preferably be round, while the blades may also be arranged, for example, on a polygon about the axis of rotation of the knife. According to the invention, the blades have a plurality of blades each provided with blades, the blades being disposed on the radially outer periphery of the blades. The wings can also have different lengths.

Die Klingen können vorzugsweise einen Schneidwinkel von 30° bis 60° mit der Lochscheibe bilden. Sehr gute Ergebnisse haben sich bei Versuchen mit Schneidwinkeln von 45° ergeben. Bei herkömmlichen Messersätzen sind die Schneidwinkel dagegen deutlich größer, was zu schlechteren Schneidergebnissen führt. Die Klingen schärfen sich während des Schneidvorgangs an der härteren Lochscheibe. Auch bei Verschleiß bleibt der Schneidwinkel erhalten.The blades may preferably form a cutting angle of 30 ° to 60 ° with the perforated disc. Very good results have been found in experiments with cutting angles of 45 °. On the other hand, in conventional knife sets, the cutting angles are significantly larger, which leads to poorer cutting results. The blades sharpen themselves during the cutting process on the harder perforated disc. Even with wear, the cutting angle is maintained.

Weitere Vorteile ergeben sich, wenn die Messer mittels einer Steckverbindung auswechselbar an dem Messerhalter angeordnet sind. Sie können dadurch leicht ausgewechselt und gereinigt werden.Further advantages arise when the blades are arranged interchangeable by means of a plug connection to the knife holder. They can be easily replaced and cleaned.

Besonders bevorzugt ist es, wenn die Messer axial beweglich im Messerhalter angeordnet sind. Dadurch tritt nur dann eine Schneidwirkung auf, wenn das Schneidgut gegen die Messer gepresst wird. Der Arbeitsdruck des durch eine Schnecke des Fleischwolfs herangeförderten Schneidgutes ist dabei ausreichend, eine saubere Schneidwirkung zu erzeugen. Wird kein Schneidgut zugeführt, ist die Reibung zwischen Lochscheibe und Messer nur minimal.It is particularly preferred if the blades are arranged axially movable in the knife holder. As a result, only a cutting action occurs when the material to be cut is pressed against the knife. The working pressure of the conveyed by a screw of the mincer cutting material is sufficient to produce a clean cutting action. If no material to be cut is fed, the friction between the perforated disc and the blade is minimal.

Noch bessere Schneidergebnisse und ein noch geringerer Verschleiß lassen sich erzielen, wenn die Messer schwimmend im Messerhalter gelagert sind. Dadurch liegen die Messerklingen während des Schneidvorgangs immer vollflächig auf der Lochscheibe auf, unabhängig davon, ob Messerhalter und Lochscheibe exakt parallel zueinander ausgerichtet sind oder nicht. Es entstehen optimale Schneidergebnisse, was insbesondere für die Herstellung von Hackfleischprodukten, Tartar oder Salami wichtig ist.Even better cutting results and even lower wear can be achieved if the blades are mounted floating in the knife holder. As a result, the knife blades are always over the entire surface of the perforated disc during the cutting process, regardless of whether the knife holder and perforated disc are aligned exactly parallel to one another or not. This results in optimum cutting results, which is particularly important for the production of minced meat products, tartare or salami.

Der Messerhalter kann vorzugsweise scheibenförmig ausgebildet sein, um eine flache und kompakte Bauweise des Messersatzes zu gewährleisten. Auch die Montage des Messersatzes gestaltet sich dadurch einfach. Besonders vorteilhaft ist dabei eine Ausgestaltung des Messerhalters mit mehreren Flügeln, an denen jeweils mindestens ein Messer angeordnet ist. Die Flügel können relativ schmal gehalten werden, sodass der Durchtritt des Schneidgutes zur Lochscheibe vom Messerhalter kaum behindert wird.The knife holder may preferably be disc-shaped in order to ensure a flat and compact design of the knife set. The assembly of the knife set is thus easy. Particularly advantageous is an embodiment of the knife holder with a plurality of wings, on each of which at least one knife is arranged. The wings can be kept relatively narrow, so that the passage of the material to be cut to the perforated disc is hardly hindered by the knife holder.

Weitere Vorteile ergeben sich, wenn der Messerhalter und/oder die Messer Öffnungen zum Abführen nicht zerkleinerbaren Schneidgutes aufweisen. Solche Öffnungen können beispielsweise nahe der Rotationsachse der Messer oder des Messerhalters angeordnet sein. Von dort können die ausgesonderten Teile wie Sehnen oder Knorpel beispielsweise über ein Rohr abgeführt werden, damit diese den Messersatz nicht verstopfen.Further advantages are obtained if the knife holder and / or the knives have openings for removing non-comminuted material to be cut. Such openings may be arranged, for example, near the axis of rotation of the knife or the knife holder. From there, the separated parts such as tendons or cartilage can be removed, for example via a tube, so that they do not clog the knife set.

Soll ein hoher Zerkleinerungsgrad erreicht werden, so kann der Messersatz in an sich bekannter Weise zwei Lochscheiben mit davor angeordneten Messerhaltern mit Messern aufweisen, wobei die Lochscheiben in Durchlaufrichtung des Schneidgutes einen zunehmend kleineren Lochdurchmesser aufweisen.If a high degree of comminution is to be achieved, then the knife set can comprise two perforated disks in a manner known per se with knife holders with knives arranged in front of it, wherein the perforated disks have an increasingly smaller hole diameter in the direction of passage of the material to be cut.

Nachfolgend wird ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Messersatzes anhand der Zeichnung näher beschrieben.Hereinafter, a preferred embodiment of a blade set according to the invention will be described with reference to the drawings.

Es zeigen:

Fig. 1
eine teilweise geschnittene Seitenansicht einer Fleischwolfschnecke mit aufgesetztem Messersatz;
Fig. 2
eine vergrößerte Seitenansicht eines Messerhalters mit Messer des Messersatzes aus Fig. 1;
Fig. 3
eine Draufsicht auf ein Messer des Messersatzes aus Fig. 1.
Show it:
Fig. 1
a partially sectioned side view of a meat grinder with attached knife set;
Fig. 2
an enlarged side view of a knife holder with knife of the knife set Fig. 1 ;
Fig. 3
a plan view of a knife of the knife set Fig. 1 ,

Fig. 1 zeigt einen Messersatz 10, der im dargestellten Beispiel zwei Lochscheiben 12, 14 mit jeweils davor angeordneten Messerhaltern 11, 13 aufweist. Der Messersatz 10 ist auf eine Welle 15 einer Fleischwolfschnecke 16 aufgesetzt, wobei die Messerhalter 11, 13 gemeinsam mit der Schnecke 16 rotierend angetrieben werden. Die Lochscheiben 12, 14 weisen im dargestellten Beispiel zwei radial beabstandete Lochreihen 17, 18 bzw. 19, 20 auf. Fig. 1 shows a blade set 10, which in the example shown two perforated discs 12, 14, each with previously arranged knife holders 11, 13 has. The blade set 10 is on a shaft 15 a Meat grinder worm 16 is placed, wherein the knife holder 11, 13 are driven in rotation together with the worm 16. The perforated disks 12, 14 have in the example shown two radially spaced rows of holes 17, 18 and 19, 20.

Die Messerhalter 11, 13 weisen drei Flügel auf, von denen in der Seitenansicht zwei Flügel 21, 22 bzw. 23, 24 zu sehen sind. Jeder Flügel 21, 22, 23, 24 trägt ein Messer 25, 26, 27, 28, deren Form und Lagerung anhand der vergrößerten Darstellung des Messerhalters 11 in Fig. 1 und anhand Fig. 2 näher beschrieben werden. Die Flügel 21, 22, 23, 24 sind im dargestellten Beispiel gleich lang und vorzugsweise jeweils um 120° voneinander beabstandet. Die Achsen R (Fig. 2) der Messer 25, 26, 27, 28 liegen daher auf einem Kreis um die Wellenachse W, sodass die Messer 25, 26, 27, 28 über die
Lochreihen 17, 18, 19, 20 hinweg bewegt werden, wenn die Messerhalter 11, 13 um die Wellenachse W des Fleischwolfs rotieren. Die Messer 25, 26, 27, 28 könnten jedoch auch auf unterschiedlichen Kreisen liegen. Die Fig. 1 verdeutlicht außerdem, dass die Messer 25, 26, 27, 28 im unbelasteten Zustand mit einem kleinen axialen Abstand a vor den Lochscheiben 12, 14 angeordnet sind, wenn kein Schneidgut zu verarbeiten ist. Der Fleischwolf mit dem erfindungsgemäßen Messersatz 10 kann daher auch ohne Material verschleißfrei laufen.The knife holders 11, 13 have three wings, of which two wings 21, 22 and 23, 24 can be seen in the side view. Each wing 21, 22, 23, 24 carries a knife 25, 26, 27, 28, whose shape and storage on the basis of the enlarged view of the knife holder 11 in Fig. 1 and based Fig. 2 be described in more detail. The wings 21, 22, 23, 24 are the same length in the example shown, and preferably each spaced by 120 ° from each other. The axes R ( Fig. 2 ) of the knives 25, 26, 27, 28 are therefore on a circle about the shaft axis W, so that the knives 25, 26, 27, 28 on the
Lines 17, 18, 19, 20 are moved away, when the knife holder 11, 13 rotate about the shaft axis W of the meat grinder. However, the knives 25, 26, 27, 28 could also be located on different circles. The Fig. 1 also clarifies that the knives 25, 26, 27, 28 are arranged in the unloaded state with a small axial distance a in front of the perforated discs 12, 14 when no cutting material is to be processed. The meat grinder with the knife set 10 according to the invention can therefore run wear-free even without material.

Fig. 2 verdeutlicht die Lagerung der Messer 25 bis 28 in den Messerhaltern 11, 13 am Beispiel des Messers 26. Das Messer 26 weist einen runden Fuß 29 auf, der in eine runde Durchgangsbohrung 30 im Flügel 21 eingesteckt und dort durch einen Dichtungsring 31 axial beweglich und drehbar gelagert ist. Der Fuß 29 kann außerdem begrenzte Kippbewegungen in der im Durchmesser etwas größeren Durchgangsbohrung 30 ausführen, sodass das Messer 26 außerdem schwimmend im Messerhalter 11 gelagert ist. Durch die einfache Steckverbindung zwischen Messer 26 und Messerhalter 11 ist eine leichte Montage und Austauschbarkeit des Messers 26 gegeben. Der Dichtungsring 31 verhindert außerdem das Eindringen von Fleischteilen. Das Messer 26 weist außerdem eine Entlastungsfläche E auf, deren Größe vom Schneidgut abhängt. Fig. 2 illustrates the storage of the knives 25 to 28 in the knife holders 11, 13 using the example of the knife 26. The knife 26 has a round foot 29 which is inserted into a round through hole 30 in the wing 21 and there by a sealing ring 31 axially movable and rotatable is stored. The foot 29 may also perform limited tilting movements in the somewhat larger diameter bore 30 so that the knife 26 also is stored floating in the knife holder 11. Due to the simple plug connection between the knife 26 and the knife holder 11, easy assembly and exchangeability of the knife 26 is provided. The sealing ring 31 also prevents the ingress of meat pieces. The knife 26 also has a relief surface E whose size depends on the material to be cut.

Die axiale Beweglichkeit ermöglicht ein Anpressen des Messers 26 durch das in Pfeilrichtung 32 herantransportierte Schneidgut gegen die Lochscheibe 12. Durch die schwimmende Lagerung kann das Messer dabei auch dann vollflächig an der Lochscheibe 11 anliegen, wenn diese nicht exakt parallel zum Messerhalter 11 ausgerichtet ist. Weiter kann das Schneidgut das Messer 26 in Drehung versetzen, wodurch sich eine sehr gute Schnittqualität ergibt, wie Versuche gezeigt haben. Das von den Öffnungen 19, 20 von der Lochscheibe 12 festgehaltene Material wird zu einem deutlich höheren Prozentsatz tatsächlich geschnitten und nicht durch Quetschen zerkleinert, wie dies bei herkömmlichen Messersätzen der Fall ist.The axial mobility allows pressing of the blade 26 by the transported in the direction of arrow 32 Schneidgut against the perforated disc 12. The floating bearing, the knife can thereby also fully rest against the perforated disc 11, if it is not exactly aligned parallel to the blade holder 11. Further, the material to be cut can set the knife 26 in rotation, resulting in a very good quality cut, as experiments have shown. The material held by the apertured disc 12 from the apertures 19, 20 is actually cut to a significantly higher percentage and not crushed by squeezing, as is the case with conventional knife sets.

Wie Fig. 3 zeigt, weist das Messer 26 drei Flügel 33, 34, 35 auf, die an ihrem äußeren Umfang jeweils Klingen 36, 37, 38 tragen, die im dargestellten Beispiel mit einem Wellenschliff versehen sind. Die Klingen 36, 37, 38 sind kreisbogenförmig gestaltet und haben alle den gleichen radialen Abstand zur Rotationsachse A des Messers 26.As Fig. 3 shows, the knife 26 has three wings 33, 34, 35 which carry at their outer periphery respectively blades 36, 37, 38, which are provided in the example shown with a serrated edge. The blades 36, 37, 38 are circular arc-shaped and all have the same radial distance to the axis of rotation A of the knife 26th

Die dargestellte Messerform ist dabei lediglich beispielhaft. Die Form des Messers 26 kann entsprechend dem zu verarbeitenden Schneidgut und dem herzustellenden Endprodukt gewählt werden. Durch die einfache Steckverbindung zwischen Messer 26 und Messerhalter 11 können die Messer rasch gegen Messer anderer Form ausgetauscht werden.The illustrated blade shape is merely exemplary. The shape of the knife 26 can be selected according to the material to be cut and the final product to be produced. By the simple Plug connection between the knife 26 and knife holder 11, the knife can be replaced quickly against other shape knife.

Claims (13)

  1. Knife set for a mincer with at least one hole disc (12, 14) and a knife holder (11, 13) that may be driven rotating through the shaft (15) of the mincer, in which several knives (25, 26, 27, 28) are arranged on the knife holder (11, 13) so that they may turn around axes, which are aligned parallel to the shaft (15) of the mincer, characterised in that the knives (25, 26, 27, 28) have several wings (33, 34, 35), which are each provided with blades (36, 37, 38), in which the blades (36, 37, 38) are arranged on the radially outer circumference of the wings (33, 34, 35).
  2. Knife set according to claim 1, characterised in that the axes of rotation (R) of the knives (25, 26, 27, 28) are arranged on one or several circles around the axis of the shaft (W) of the mincer.
  3. Knife set according to claim 2, characterised in that the knives (25, 26, 27, 28) each have the same angular distance.
  4. Knife set according to one of the previous claims, characterised in that the knives (25, 26, 27, 28) are made rotationally symmetrical.
  5. Knife set according to one of the previous claims, characterised in that the knives (25, 26, 27, 28) are provided with blades (36, 37, 38) on their circumference.
  6. Knife set according to one of the previous claims, characterised in that the blades (36, 37, 38) form a cutting angle of 30° to 60° with the hole disc (12, 14).
  7. Knife set according to one of the previous claims, characterised in that the knives (25, 26, 27, 28) are arranged on the knife holder (11, 13) so that they may be exchanged by means of a plug connection.
  8. Knife set according to one of the previous claims, characterised in that the knives (25, 26, 27, 28) are arranged so that they may move axially in the knife holder (11, 13).
  9. Knife set according to one of the previous claims, characterised in that the knives (25, 26, 27, 28) are mounted floating in the knife holder (11, 13).
  10. Knife set according to one of the previous claims, characterised in that the knife holder (11, 13) is made in the shape of a disc.
  11. Knife set according to one of claims 1 to 9, characterised in that the knife holder (11, 13) has several wings (21, 22, 23, 24), on each of which at least one knife (25, 26, 27, 28) is arranged.
  12. Knife set according to one of the previous claims, characterised in that the knife holder (11, 13) and/or the knives (25, 26, 27, 28) have openings for conducting away material to be cut that may not be ground.
  13. Knife set according to one of the previous claims, characterised in that it has at least two hole discs (12, 14) with knife holders (11, 13) with knives (25, 26, 27, 28) arranged in front of them, in which the hole discs (12, 14) have an increasingly smaller hole diameter in the direction of throughput (32) of the material to be cut.
EP13753171.1A 2012-09-05 2013-08-21 Blade assembly for a meat mincing machine Active EP2892650B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012108245.6A DE102012108245A1 (en) 2012-09-05 2012-09-05 Knife set for a meat grinder
PCT/EP2013/067398 WO2014037223A1 (en) 2012-09-05 2013-08-21 Blade set for a meat grinder

Publications (2)

Publication Number Publication Date
EP2892650A1 EP2892650A1 (en) 2015-07-15
EP2892650B1 true EP2892650B1 (en) 2017-05-17

Family

ID=49035585

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13753171.1A Active EP2892650B1 (en) 2012-09-05 2013-08-21 Blade assembly for a meat mincing machine

Country Status (6)

Country Link
US (1) US9643189B2 (en)
EP (1) EP2892650B1 (en)
CN (1) CN104768650B (en)
DE (1) DE102012108245A1 (en)
ES (1) ES2637246T3 (en)
WO (1) WO2014037223A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108405148B (en) * 2018-02-27 2020-06-09 瀚蓝驼王生物科技(广东)有限公司 Animal meat and bone meal processingequipment dies of illness
DE102020108424A1 (en) 2020-03-26 2021-09-30 Greiner Maschinenbau Gmbh Knife, knife set and meat grinder

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1889381A (en) * 1930-10-21 1932-11-29 William R Rush Food chopper
GB363229A (en) * 1931-02-24 1931-12-17 Adrianus Wilhelmus Van Berkel Improvements relating to mincing machines
DE577208C (en) * 1931-11-22 1933-05-26 August Storck Knife head for meat wolves
DE679144C (en) * 1937-12-14 1939-07-29 Turner Akt Ges Maschf Knife disc for skinning devices
DE4437144B4 (en) 1994-10-18 2006-04-13 Wolfgang Greiner Knife set for a meat grinder and blade insert for such
DE29905706U1 (en) * 1999-03-27 1999-07-08 Tiromat Krämer + Grebe GmbH & Co. KG, 35216 Biedenkopf Device for chopping and sorting food

Also Published As

Publication number Publication date
US20150251189A1 (en) 2015-09-10
WO2014037223A1 (en) 2014-03-13
US9643189B2 (en) 2017-05-09
EP2892650A1 (en) 2015-07-15
ES2637246T3 (en) 2017-10-11
DE102012108245A1 (en) 2014-03-06
CN104768650B (en) 2017-11-07
CN104768650A (en) 2015-07-08

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