EP0249840A2 - Device for automatically adjusting the knives of a meat-mincing machine - Google Patents

Device for automatically adjusting the knives of a meat-mincing machine Download PDF

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Publication number
EP0249840A2
EP0249840A2 EP87108228A EP87108228A EP0249840A2 EP 0249840 A2 EP0249840 A2 EP 0249840A2 EP 87108228 A EP87108228 A EP 87108228A EP 87108228 A EP87108228 A EP 87108228A EP 0249840 A2 EP0249840 A2 EP 0249840A2
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EP
European Patent Office
Prior art keywords
drive shaft
threaded sleeve
shaft
knife
perforated plate
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
EP87108228A
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German (de)
French (fr)
Other versions
EP0249840B1 (en
EP0249840A3 (en
Inventor
Karl 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
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Publication date
Application filed by Karl Schnell Maschinenfabrik, Karl Schnell GmbH and Co Maschinenfabrik filed Critical Karl Schnell Maschinenfabrik
Priority to AT87108228T priority Critical patent/ATE56893T1/en
Publication of EP0249840A2 publication Critical patent/EP0249840A2/en
Publication of EP0249840A3 publication Critical patent/EP0249840A3/en
Application granted granted Critical
Publication of EP0249840B1 publication Critical patent/EP0249840B1/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
    • B02C18/36—Knives or perforated discs

Definitions

  • the present invention relates to a device for automatically adjusting the cutting set of a meat shredder, which has at least one fixed perforated plate and a knife head which is associated with the latter and is arranged on an adjustable shaft and driven by a motor.
  • the object of the present invention is now to eliminate the difficulties outlined above and to provide a device by means of which the cutting set of such a meat chopping machine can be adjusted during an idling thereof so that any unnecessary wear on the knife blades located on the cutter head is avoided.
  • the drive shaft carrying the cutter heads equipped with the cutter blades can be displaced in the axial direction in dependence on the respective load of the motor driving the machine in such a way that at a predetermined minimum load on the drive motor Knife blades of the cutter head lie snugly against the cutting surface of the adjacent perforated plate opposite them, but when this load is reduced, the cutter blades of the cutter head are lifted off the perforated plate.
  • this axially displaceable drive shaft can be fixed in its advanced and in its retracted position by means of a preferably electronically controllable clamping device which is actuated, for example, pneumatically, hydraulically or also electromagnetically can.
  • a threaded sleeve is supported on the longitudinally displaceable drive shaft in the axial direction by means of, for example, an annular disc, an annular collar or the like, which can be rotated by means of a servomotor and whose external thread fits into the internal thread of a threaded sleeve surrounding fixed bearing bush or the like.
  • This threaded sleeve can be rotated relative to the fixed bearing bush in such a way that the threaded sleeve and with it also the drive shaft is given an axial displacement, which in turn results in a corresponding lifting of the knife blades arranged on the cutter head from the opposing perforated disk or a starting thereof.
  • the aforementioned threaded sleeve can also partially protrude in the axial direction over the surrounding bearing bush and pass into a cylindrical jacket in this area, around which a clamping ring of the above-mentioned clamping device then grips, which in its clamping position grips the threaded sleeve and this also fixes the drive shaft carrying the cutter head in its respective position, while in its open position it allows the threaded sleeve to be rotated by means of the servomotor and thus also allows the drive shaft to be axially displaced.
  • the said threaded sleeve is connected to a worm wheel or the like arranged coaxially therewith, in which a worm shaft driven by the servomotor then engages.
  • the worm shaft of the servomotor is advantageously associated with a lockable handle or the like which permits displacement of the drive shaft carrying the cutter head .
  • the meat shredder shown in side view in FIG. 1 has a base 1 on which a machine housing, designated by 2, is seated.
  • a bearing housing 3 is formed, which serves to receive and support a drive shaft denoted by 4, which is rotated by an electric motor 6 via an elastic coupling 5.
  • an inlet housing 8 having a funnel 7 is also formed, on the side facing away from the electric motor 6 a cutting head designated 9 is arranged, into which the end of the drive shaft 4 labeled 10 projects.
  • the Water cutting head 9 is covered by an outlet housing 11, the ejection opening is designated 12.
  • two perforated plates 13 and 14 are arranged in a fixed manner one behind the other in the axial direction and fixed by means of a ring holder 15, a jamming ring 16 and a support ring 17 located between the two perforated plates 13 and 14.
  • These two perforated plates 13 and 14 are assigned cutter heads, designated 18 and 19, which are each equipped with a plurality of cutter blades 20.
  • These two cutter heads 18 and 19 are pushed onto the free end 10 of the drive shaft 4 and locked.
  • the shaft part 21 which is adjacent to this shaft end 10 and extends through the inlet housing 8 is covered by a sleeve 22 which rotates together with the drive shaft 4.
  • the machine housing 2 is used to mount a fixed bearing bush 23, in the internal thread 24 of which a rotatable threaded sleeve 26 having an external thread 25 is partially screwed.
  • the part 27 of this threaded sleeve 26 projecting beyond this fixed bearing bush 23 is cylindrical and is supported by an annular cover designated 28 on the casing of the drive shaft 4, the shaft part 29 of which is supported in the threaded sleeve 26 by means of ball bearings 30.
  • a worm wheel On the end face of the threaded bushing 26 facing away from the bush part 27, a worm wheel, designated 31, is fastened, into which a worm shaft 34, which is rotated by a servomotor 32 via chain wheels 33, engages.
  • a clamping ring 35 belonging to a clamping device engages around the cylindrical socket part 27, which is to be clamped and released by means of a clamping bolt denoted by 36 and a clamping nut 37 belonging to this.
  • the tensioning and loosening of this clamping ring 35 takes place by means of a pneumatic cylinder 38, the piston rod 39 of which is articulated on a crank designated 40, which is given a pivoting movement in the direction of arrow 41 when the piston rod 39 is lifted.
  • tightening or loosening of the clamping nut 37 takes place, which in turn results in a corresponding tightening or loosening of the clamping ring 35.
  • the workflow in this meat chopping machine is as follows: In the working position of the drive shaft 4 shown in FIG. 1 and also the cutter heads 18 and 19 arranged on it, the piston rod 39 assumes its rest position, shown in solid lines, in which the clamping nut 37 is tightened and the Tension ring 35 are tensioned.
  • This clamping ring 35 fully includes the cylindrical sleeve part 27, so that twisting of the threaded sleeve 26 is not possible. But with that the drive shaft 4 is secured against any axial displacement.
  • the material to be cut is introduced in the direction of arrow 42 into the hopper 7, from which it arrives in the direction of the arrows 43 to the cutter heads 18 and 19 and the associated perforated plates 13 and 14 in order to move in the direction of the Arrow 44 to exit through the ejection opening 12 located in the outlet housing 11.
  • the worm shaft 34 is also assigned a handwheel 47, by means of which the drive shaft and with it the two cutter heads can be manually axially displaced independently of the servomotor 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
  • Paper (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Adjustment And Processing Of Grains (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Lubricants (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Automatic Control Of Machine Tools (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A meat comminuting machine has a cutting unit which includes at least one stationary perforated plate and a mobile associated cutter head arranged on a driving shaft, which is driven by a driving motor, and a device for an axial displacement of the driving shaft which supports the cutter head in dependence of the loading of the driving motor.

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum automatischen Verstellen des Schneidsatzes einer Fleichzerkleinerungsmaschine, die mindestens eine feststehende Lochplatte und einen zu dieser gehörigen, auf einer von einem Motor angetriebenen Welle angeordneten und verstellbaren Messerkopf aufweist.The present invention relates to a device for automatically adjusting the cutting set of a meat shredder, which has at least one fixed perforated plate and a knife head which is associated with the latter and is arranged on an adjustable shaft and driven by a motor.

Bei derartigen Fleischzerkleinerungsmaschinen besteht immer noch die Schwierigkeit, daß die zu dem Messerkopf gehörigen und mit der Lochscheibe zusammenwirkenden Messerklingen, insbesondere bei einem Dauerlauf der Zerkleinerungsmaschine, einer sehr raschen Abnutzung unterliegen. Dieses bedeutet aber, daß die einzelnen Messerklingen in einem verhältnismäßig kurzen Abstand zu schleifen sind, was nicht nur einen besonderen Arbeitsaufwand mit sich bringt, sondern darüber hinaus auch jedes mal ein besonderes Ausbauen und Wiedereinbauen des betreffenden Messerkopfes erforderlich ist. Darüber hinaus ergeben sich Stillstandzeiten der Zerkleinerungsmaschine, was wieder Störungen beim Betrieb sowie auch eine geringere Auslastung der betreffenden Maschine zur Folge hat.With such meat chopping machines there is still the difficulty that the knife blades belonging to the cutter head and interacting with the perforated disk are subject to very rapid wear, particularly when the chopping machine is in continuous operation. This means, however, that the individual knife blades have to be sharpened at a relatively short distance, which not only involves a special amount of work, but also requires the special removal and reinstallation of the relevant knife head each time. In addition, there are downtimes of the shredding machine, which in turn leads to malfunctions in operation and also less utilization of the machine in question.

Aufgabe der vorliegenden Erfindung ist es nunmehr, diese oben aufgezeigten Schwierigkeiten zu beseitigen und eine Vorrichtung zu schaffen, mittels der der Schneidsatz einer solchen Fleischzerkleinerungsmaschine während eines Leerlaufes derselben so verstellt werden kann, daß jeder unnötige Verschleiß der an dem Messerkopf befindlichen Messerklingen unterbleibt.The object of the present invention is now to eliminate the difficulties outlined above and to provide a device by means of which the cutting set of such a meat chopping machine can be adjusted during an idling thereof so that any unnecessary wear on the knife blades located on the cutter head is avoided.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die den mit den Messerklingen ausgerüsteten Messerkopf tragende Antriebswelle in Abhängigkeit von der jeweiligen Belastung des die Maschine antreibenden Motors derart in axialer Richtung verschiebbar ist, daß bei einer vorgegebenen Mindestbelastung des Antriebsmotors die Messerklingen des Messerkopfes satt an der diesen gegenüberliegenden Schneidfläche der benachbarten Lochplatte anliegen, bei einer Verringerung dieser Belastung dagegen die Messerklingen des Messerkopfes von der Lochplatte abgehoben werden.This object is achieved in that the drive shaft carrying the cutter heads equipped with the cutter blades can be displaced in the axial direction in dependence on the respective load of the motor driving the machine in such a way that at a predetermined minimum load on the drive motor Knife blades of the cutter head lie snugly against the cutting surface of the adjacent perforated plate opposite them, but when this load is reduced, the cutter blades of the cutter head are lifted off the perforated plate.

Um dabei ein unerwünschtes Verschieben dieser Antriebswelle in axialer Richtung zu verhindern, ist es ferner zweckmäßig, wenn diese axial verschiebbare Antriebswelle in ihrer vorgeschobenen und in ihrer zurückgezogenen Stellung mittels einer vorzugsweise elektronisch steuerbaren Spanneinrichtung fixierbar ist, die beispielsweise pneumatisch, hydraulisch oder auch elektromagnetisch betätigt werden kann.In order to prevent undesired displacement of this drive shaft in the axial direction, it is furthermore expedient if this axially displaceable drive shaft can be fixed in its advanced and in its retracted position by means of a preferably electronically controllable clamping device which is actuated, for example, pneumatically, hydraulically or also electromagnetically can.

Bei einer besonders vorteilhaften Ausführungsform der erfindungsgemäßen Vorrichtung ist auf der längsverschiebbaren Antriebswelle eine sich in axialer Richtung an dieser über beispielsweise eine Ringscheibe, einen Ringbund od. dgl. abstützende Gewindehülse gelagert, die mittels eines Stellmotors verdrehbar ist und deren Außengewinde in das Innengewinde einer diese Gewindehülse umgebenden feststehenden Lagerbuchse od. dgl. eingreift. Diese Gewindehülse ist dabei gegenüber der feststehenden Lagerbuchse derart verdrehbar, daß der Gewindehülse und mit dieser auch der Antriebswelle eine axiale Verschiebung erteilt wird, was wieder ein entsprechendes Abheben der an dem Messerkopf angeordneten Messerklingen von der gegenüberstehenden Lochscheibe bzw. ein Anstellen derselben zur Folge hat.In a particularly advantageous embodiment of the device according to the invention, a threaded sleeve is supported on the longitudinally displaceable drive shaft in the axial direction by means of, for example, an annular disc, an annular collar or the like, which can be rotated by means of a servomotor and whose external thread fits into the internal thread of a threaded sleeve surrounding fixed bearing bush or the like. This threaded sleeve can be rotated relative to the fixed bearing bush in such a way that the threaded sleeve and with it also the drive shaft is given an axial displacement, which in turn results in a corresponding lifting of the knife blades arranged on the cutter head from the opposing perforated disk or a starting thereof.

In diesem Zusammenhang kann die zuvor erwähnte Gewindehülse auch teilweise in axialer Richtung über die sie umgebende feststehende Lagerbuchse hinausragen und in diesem Bereich in einen zylindrischen Mantel übergehen, um den dann ein Spannring der oben bereits erwähnten Spanneinrichtung satt herumgreift, der in seiner Spannstellung die Gewindehülse und mit dieser auch die den Messerkopf tragende Antriebswelle in deren jeweiligen Stellung fixiert, in seiner öffnungsstellung dagegen ein Verdrehen der Gewindehülse mittels des Stellmotors und damit auch ein axiales Verschieben der Antriebswelle erlaubt.In this context, the aforementioned threaded sleeve can also partially protrude in the axial direction over the surrounding bearing bush and pass into a cylindrical jacket in this area, around which a clamping ring of the above-mentioned clamping device then grips, which in its clamping position grips the threaded sleeve and this also fixes the drive shaft carrying the cutter head in its respective position, while in its open position it allows the threaded sleeve to be rotated by means of the servomotor and thus also allows the drive shaft to be axially displaced.

Ferner ist es noch zweckmäßig, wenn die besagte Gewindehülse mit einem zu dieser koaxial angeordneten Schneckenrad od. dgl. verbunden ist, in die dann eine von dem Stellmotor angetriebene Schneckenwelle eingreift.Furthermore, it is also expedient if the said threaded sleeve is connected to a worm wheel or the like arranged coaxially therewith, in which a worm shaft driven by the servomotor then engages.

Um darüber hinaus nach einem erfolgten Schleifen der an dem Messerkopf befindlichen Messerklingen eine dann erforderliche neue Einstellung des Messerkopfes gegenüber der zugehörigen Lochscheibe manuell zu ermöglichen, ist der Schneckenwelle des Stellmotors vorteilfhaft eine das Verschieben der den Messerkopf tragenden Antriebswelle erlaubende feststellbare Handhabe od. dgl. zugeordnet.In addition to manually enabling a new adjustment of the cutter head relative to the associated perforated disk, after the cutter blades on the cutter head have been ground, the worm shaft of the servomotor is advantageously associated with a lockable handle or the like which permits displacement of the drive shaft carrying the cutter head .

Weitere Einzelheiten der vorliegenden Erfindung ergeben sich aus der folgenden Beschreibung einer auf der Zeichnung dargestellten beispielsweisen Ausführungsform sowie den sich hieran anschliessenden Ansprüchen. Es zeigen:

  • Fig. 1 die Seitenansicht einer mit der erfindungsgemäßen Vorrichtung ausgestatteten Fleischzerkleinerungsmaschine,
  • Fig. 2 einen Schnitt gemäß der Linie 2-2,
  • Fig. 3 einen Ausschnitt aus der Fig. 1 in vergrößertem Maßstab mit angestellten Messerklingen und
  • Fig. 4 eine der Fig. 3 entsprechende Darstellung mit abgehobenen Messerklingen.
Further details of the present invention will become apparent from the following description of one shown in the drawing exemplary embodiment and the claims that follow. Show it:
  • 1 is a side view of a meat chopping machine equipped with the device according to the invention,
  • 2 shows a section along the line 2-2,
  • Fig. 3 shows a detail of FIG. 1 on an enlarged scale with knife blades and
  • FIG. 4 shows a representation corresponding to FIG. 3 with the knife blades raised.

Die in der Fig. 1 in der Seitenansicht dargestellte Fleischzerkleinerungsmaschine weist einen Sockel 1 auf, auf dem ein mit 2 bezeichnetes Maschinengehäuse aufsitzt. An diesem Maschinengehäuse 2 ist ein Lagergehäuse 3 angeformt, das der Aufnahme und Lagerung einer mit 4 bezeichneten Antriebswelle dient, die über eine elastische Kupplung 5 von einem Elektromotor 6 in Umlauf versetzt wird. An der dem Elektromotor 6 abgekehrten Seite des Maschinengehäuses 2 ist ferner ein einen Trichter 7 aufweisendes Einlaufgehäuse 8 angeformt, an dessen dem Elektromotor 6 abgekehrten Seite ein mit 9 bezeichneter Schneidkopf angeordnet ist, in den das mit 10 bezeichnete Ende der Antriebswelle 4 hineinragt. Dieser Schneidkopf 9 ist dabei durch ein Auslaufgehäuse 11 abgedeckt, dessen Auswurföffnung mit 12 bezeichnet ist.The meat shredder shown in side view in FIG. 1 has a base 1 on which a machine housing, designated by 2, is seated. On this machine housing 2, a bearing housing 3 is formed, which serves to receive and support a drive shaft denoted by 4, which is rotated by an electric motor 6 via an elastic coupling 5. On the side of the machine housing 2 facing away from the electric motor 6, an inlet housing 8 having a funnel 7 is also formed, on the side facing away from the electric motor 6 a cutting head designated 9 is arranged, into which the end of the drive shaft 4 labeled 10 projects. The Water cutting head 9 is covered by an outlet housing 11, the ejection opening is designated 12.

In dem Schneidkopf 9 sind in axialer Richtung hintereinander zwei Lochplatten 13 und 14 feststehend angeordnet und mittels einer Ringfassung 15, eines Staufingerringes 16 und eines zwischen den beiden Lochplatten 13 und 14 befindlichen Stützringes 17 fixiert. Diesen beiden Lochplatten 13 und 14 sind mit 18 und 19 bezeichnete Messerköpfe zugeordnet, die jeweils mit mehreren Messerklingen 20 ausgerüstet sind. Diese beiden Messerköpfe 18 und 19 sind dabei auf dem freien Ende 10 der Antriebswelle 4 aufgeschoben und arretiert. Der diesem Wellenende 10 benachbarte, durch das Einlaufgehäuse 8 hindurchgreifende Wellenteil 21 ist dabei durch eine zusammen mit der Antriebswelle 4 umlaufende Hülse 22 abgedeckt.In the cutting head 9, two perforated plates 13 and 14 are arranged in a fixed manner one behind the other in the axial direction and fixed by means of a ring holder 15, a jamming ring 16 and a support ring 17 located between the two perforated plates 13 and 14. These two perforated plates 13 and 14 are assigned cutter heads, designated 18 and 19, which are each equipped with a plurality of cutter blades 20. These two cutter heads 18 and 19 are pushed onto the free end 10 of the drive shaft 4 and locked. The shaft part 21 which is adjacent to this shaft end 10 and extends through the inlet housing 8 is covered by a sleeve 22 which rotates together with the drive shaft 4.

Wie weiter aus der Fig. 1 ersichtlich ist, so dient das Maschinengehäuse 2 der Lagerung einer feststehenden Lagerbuchse 23, in deren Innengewinde 24 eine ein Außengewinde 25 aufweisende drehbare Gewindehülse 26 teilweise eingeschraubt ist. Der über diese feststehende Lagerbuchse 23 hinausragende Teil 27 dieser Gewindehülse 26 ist dabei zylindrisch ausgestaltet und stützt sich über einen mit 28 bezeichneten Ringdeckel an dem Mantel der Antriebswelle 4 ab, deren Wellenteil 29 mittels Kugellager 30 in der Gewindehülse 26 gelagert ist.As can further be seen from FIG. 1, the machine housing 2 is used to mount a fixed bearing bush 23, in the internal thread 24 of which a rotatable threaded sleeve 26 having an external thread 25 is partially screwed. The part 27 of this threaded sleeve 26 projecting beyond this fixed bearing bush 23 is cylindrical and is supported by an annular cover designated 28 on the casing of the drive shaft 4, the shaft part 29 of which is supported in the threaded sleeve 26 by means of ball bearings 30.

An der dem Büchsenteil 27 abgekehrten Stirnseite dieser Gewindebuchse 26 ist ein mit 31 bezeichnetes Schneckenrad befestigt, in die eine von einem Stellmotor 32 über Kettenräder 33 in Umlauf versetzte Schneckenwelle 34 eingreift.On the end face of the threaded bushing 26 facing away from the bush part 27, a worm wheel, designated 31, is fastened, into which a worm shaft 34, which is rotated by a servomotor 32 via chain wheels 33, engages.

Wie sich weiter aus den beiden Fign. 1 und 2 ergibt, so greift um den zylindrischen Buchsenteil 27 ein zu einer Spanneinrichtung gehöriger Spannring 35 satt herum, der mittels eines mit 36 bezeichneten Spannbolzens sowie einer zu diesem gehörigen Spannmutter 37 zu spannen und zu lösen ist. Das Spannen und Lösen dieses Spannringes 35 erfolgt dabei mittels eines pneumatischen Zylinders 38, dessen Kolbenstange 39 an einer mit 40 bezeichneten Kurbel angelenkt ist, der bei einem Hub der Kolbenstange 39 eine Schwenkbewegung in Richtung des Pfeiles 41 erteilt wird. Je nach der jeweiligen Drehrichtung erfolgt dabei ein Anziehen oder ein Lösen der Spannmutter 37, was wieder ein entsprechendes Spannen oder Lösen des Spannringes 35 zur Folge hat.As can further be seen from the two FIGS. 1 and 2 results in that a clamping ring 35 belonging to a clamping device engages around the cylindrical socket part 27, which is to be clamped and released by means of a clamping bolt denoted by 36 and a clamping nut 37 belonging to this. The tensioning and loosening of this clamping ring 35 takes place by means of a pneumatic cylinder 38, the piston rod 39 of which is articulated on a crank designated 40, which is given a pivoting movement in the direction of arrow 41 when the piston rod 39 is lifted. Depending on the respective direction of rotation, tightening or loosening of the clamping nut 37 takes place, which in turn results in a corresponding tightening or loosening of the clamping ring 35.

Der Arbeitsablauf bei dieser erfindungsgemäßen Fleischzerkleinerungsmaschine ist der folgende: Bei der in der Fig. 1 dargestellten Arbeitsstellung der Antriebswelle 4 sowie auch der auf dieser angeordneten Messerköpfe 18 und 19 nimmt die Kolbenstange 39 ihre ausgezogen dargestellte Ruhestellung ein, in der die Spannmutter 37 angezogen und der Spannring 35 gespannt sind. Dieser Spannring 35 umfaßt dabei satt den zylindrischen Büchsenteil 27, so daß ein Verdrehen der Gewindehülse 26 nicht möglich ist. Damit aber ist die Antriebswelle 4 gegen jede axiale Verschiebung gesichert. In dieser Arbeitsstellung der Antriebswelle 4 wird das Schneidgut in Richtung des Pfeiles 42 in den Trichter 7 eingeführt, von dem es in Richtung der Pfeile 43 zu den Messerköpfen 18 und 19 und den zugehörigen Lochplatten 13 und 14 gelangt, um nach dem Schneidvorgang in Richtung des Pfeiles 44 durch die in dem Auslaufgehäuse 11 befindliche Auswurföffnung 12 auszutreten.The workflow in this meat chopping machine according to the invention is as follows: In the working position of the drive shaft 4 shown in FIG. 1 and also the cutter heads 18 and 19 arranged on it, the piston rod 39 assumes its rest position, shown in solid lines, in which the clamping nut 37 is tightened and the Tension ring 35 are tensioned. This clamping ring 35 fully includes the cylindrical sleeve part 27, so that twisting of the threaded sleeve 26 is not possible. But with that the drive shaft 4 is secured against any axial displacement. In this working position of the drive shaft 4, the material to be cut is introduced in the direction of arrow 42 into the hopper 7, from which it arrives in the direction of the arrows 43 to the cutter heads 18 and 19 and the associated perforated plates 13 and 14 in order to move in the direction of the Arrow 44 to exit through the ejection opening 12 located in the outlet housing 11.

Wird nun die weitere Zugabe von Schneidgut in Richtung des Pfeiles 42 eingestellt, so sinkt die Belastung des Elektromotors 6 ab. Nach Unterschreiten einer Mindestbelastung wird über eine elektronische Steuerung der Kolbenstange 39 ein Hub in Richtung des Pfeiles 45 und damit der Kolbenstange 39 eine Schwenkbewegung in Richtung des Pfeiles 41 erteilt, was wieder ein Lösen der Spannmutter 37 und damit auch des Spannringes 35 sowie eine Freigabe der Gewindehülse 26 zur Folge hat. Über die elektronische Steuereinrichtung wird anschließend der Stellmotor 32 in Drehung versetzt, der über die Schneckenwelle 34 und das Schneckenrad 31 eine Drehung der Gewindehülse 26 und damit eine axiale Verschiebung derselben gegenüber der feststehenden Lagerbuchse 23 bewirkt. Infolge dieser Verschiebung der Gewindehülse 26 in Richtung des Pfeiles 46 wird auch die Antriebswelle 4 zusammen mit den beiden Messerköpfen 18 und 19 zurückgezogen, was ein Abheben der Messerklingen 20 von den Schneidflächen der gegenüberstehenden Lochplatten 13 bzw. 14 in der in der Fig. 4 dargestellten Weise zur Folge hat. Ist diese axiale Verschiebung der Antriebswelle 4 beendet, so kehrt die Kolbenstange 39 wieder in ihre Ruhestellung zurück, wodurch der Spannring 35 wieder gespannt und damit die Gewindehülse 26 und mit dieser auch die Antriebswelle 4 arretiert werden.If the further addition of material to be cut is now set in the direction of arrow 42, the load on the electric motor 6 drops. After falling below a minimum load, a stroke in the direction of arrow 45 and thus the piston rod 39 is given a pivoting movement in the direction of arrow 41 via an electronic control of the piston rod 39, which again releases the clamping nut 37 and thus also the clamping ring 35 and releases the Threaded sleeve 26 results. Via the electronic control device, the servomotor 32 is then set in rotation, which causes a rotation of the threaded sleeve 26 via the worm shaft 34 and the worm wheel 31 and thus an axial displacement thereof with respect to the fixed bearing bush 23. As a result of this displacement of the threaded sleeve 26 in the direction of arrow 46, the drive shaft 4 is also retracted together with the two cutter heads 18 and 19, which means that the cutter blades 20 are lifted off the cutting surfaces of the opposing perforated plates 13 and 14 in the one shown in FIG. 4 Way. Is this axial displacement of the drive shaft 4 ends, the piston rod 39 returns to its rest position, whereby the clamping ring 35 is tightened again and thus the threaded sleeve 26 and with it the drive shaft 4 are locked.

Wird, nachdem die Fleischzerkleinerungsmaschine eine kürzere oder längere Zeit im Leerlauf gefahren worden ist, erneut Schneidgut in Richtung des Pfeiles 42 in den Trichter 7 gegeben, so steigt die Belastung des Elektromotors 6 wieder an. Sobald die vorgegebene Minimalbelastung des Elektromotors 6 überschritten ist, bewirkt die elektronische Steuerung wieder ein Lösen des Spannringes 35 sowie ein Verdrehen der Gewindehülse 26, was nunmehr ein Vorschieben der Antriebswelle 4 und der auf derselben sitzenden Messerköpfe 18 und 19 entgegen der Richtung des Pfeiles 46 zur Folge hat. Die Messerklingen 20 der beiden Messerköpfe 18 und 19 nehmen somit wieder ihre in der Fig. 3 dargestellte Arbeitsstellung ein, in der ihre Schneiden satt an den Schneidflächen der beiden zugehörigen Lochplatten 13 und 14 anliegen. Nachdem die Kolbenstange 39 wieder in ihre Ruhestellung zurückgekehrt ist, ist auch der Spannring 35 wieder gespannt, so daß sowohl die Gewindehülse 26 als auch die Antriebswelle 4 mit den beiden Messerköpfen 18 und 19 gegen jede weitere axiale Verschiebung gesichert sind.If, after the meat chopping machine has been idling for a shorter or longer time, material to be cut is again placed in the hopper 7 in the direction of arrow 42, the load on the electric motor 6 increases again. As soon as the predetermined minimum load of the electric motor 6 is exceeded, the electronic control again loosens the clamping ring 35 and rotates the threaded sleeve 26, which now pushes the drive shaft 4 and the cutter heads 18 and 19 seated thereon against the direction of arrow 46 Consequence. The knife blades 20 of the two cutter heads 18 and 19 thus again assume their working position shown in FIG. 3, in which their cutting edges lie snugly against the cutting surfaces of the two associated perforated plates 13 and 14. After the piston rod 39 has returned to its rest position, the clamping ring 35 is tensioned again, so that both the threaded sleeve 26 and the drive shaft 4 with the two cutter heads 18 and 19 are secured against any further axial displacement.

Um nach einem eventuellen Schleifen der zu den Messerköpfen 18 und 19 gehörigen Messerklingen 20 diese gegenüber den Schneidflächen der benachbarten Lochplatten 13 und 14 sicher und gefühlvoll einstellen zu können, ist der Schneckenwelle 34 noch ein mit 47 bezeichnetes Handrad zugeordnet, mittels dem unabhängig von dem Stellmotor 32 die Antriebswelle und mit dieser die beiden Messerköpfe manuell axial verschoben werden können.In order after a possible grinding of the knife blades 20 belonging to the knife heads 18 and 19, the knife blades 20 are compared to the cutting To be able to adjust the surfaces of the adjacent perforated plates 13 and 14 safely and sensitively, the worm shaft 34 is also assigned a handwheel 47, by means of which the drive shaft and with it the two cutter heads can be manually axially displaced independently of the servomotor 32.

Claims (8)

1. Schneidsatz einer Fleischzerkleinerungsmaschine, die mindestens eine feststehende Lochplatte und einen zu dieser gehörigen, auf einer von einem Motor angetriebenen Welle angeordneten und verstellbaren Messerkopf aufweist, dadurch gekennzeichnet, daß die den Messerkopf (18, 19) tragende Antriebswelle (4) in Abhängigkeit von der jeweiligen Belastung des Antriebsmotors (6) in axialer Richtung (46) verschiebbar ist.1. Cutting set of a meat chopping machine, which has at least one fixed perforated plate and an associated knife head arranged and adjustable on a shaft driven by a motor, characterized in that the knife head (18, 19) carrying drive shaft (4) in dependence on the respective load on the drive motor (6) is displaceable in the axial direction (46). 2. Vorichtung nach Anspruch 1, dadurch gekennzeichnet, daß bei einer vorgegebenen Mindestbelastung des Antriebsmotors (6) die Messerklingen (20) des Messerkopfes (18, 19) satt an der diesen gegenüberliegenden Schneidfläche der benachbarten Lochplatte (13, 14) anliegen, bei einer Verringerung dieser Belastung dagegen die Messerklingen (20) des Messerkopfes (18, 19) von der Lochplatte (13, 14) abgehoben sind.2. Device according to claim 1, characterized in that with a predetermined minimum load of the drive motor (6) the knife blades (20) of the cutter head (18, 19) lie snugly on the opposite cutting surface of the adjacent perforated plate (13, 14), at one However, to reduce this load, the knife blades (20) of the knife head (18, 19) are lifted off the perforated plate (13, 14). 3. Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die axial verschiebbare Antriebswelle (4) in ihrer vorgeschobenen und zurückgezogenen Stellung mittels einer vorzugsweise elektronisch steuerbaren Spanneinrichtung (38, 40, 35) fixierbar ist.3. Apparatus according to claim 2, characterized in that the axially displaceable drive shaft (4) in its advanced and retracted position by means of a preferably electronically controllable clamping device (38, 40, 35) can be fixed. 4. Vorrichtung nach Anspruch 2 und/oder 3, dadurch gekennzeichnet, daß die Spanneinrichtung (38, 40, 35) pneumatisch, hydraulisch oder elektromagnetisch zu betätigen ist.4. Apparatus according to claim 2 and / or 3, characterized in that the clamping device (38, 40, 35) can be actuated pneumatically, hydraulically or electromagnetically. 5. Vorrichtung nach einem oder mehreren der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß auf der Antriebswelle (4) eine sich in axialer Richtung an dieser über beispielsweise eine Ringscheibe, einen Ringbund od. dgl. abstützende Gewindehülse (26) gelagert ist, die mittels eines Stellmotors (32) verdrehbar ist und deren Außengewinde (25) in das Innengewinde (24) einer diese Gewindehülse (26) umgebenden feststehenden Lagerbuchse (23) od. dgl. eingreift.5. The device according to one or more of claims 1 to 4, characterized in that on the drive shaft (4) in an axial direction on this via, for example, an annular disc, an annular collar or the like. Supporting threaded sleeve (26) is mounted can be rotated by means of a servomotor (32) and whose external thread (25) engages in the internal thread (24) of a fixed bearing bush (23) or the like surrounding this threaded sleeve (26). 6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß die Gewindehülse (26) teilweise in axialer Richtung über die sie umgreifende, feststehende Lagerbuchse (23) hinausragt und in diesem Bereich in einen zylindrischen Mantel (27) übergeht, um den ein Spannring (35) der Spanneinrichtung satt herumgreift.6. The device according to claim 5, characterized in that the threaded sleeve (26) projects partially in the axial direction over the surrounding bearing bush (23) and in this area merges into a cylindrical jacket (27) around which a clamping ring (35 ) of the tensioning device reaches around. 7. Vorrichtung nach Anspruch 5 und/oder 6, dadurch gekennzeichnet, daß die Gewindehülse (26) mit einem zu diesem koaxial angeordneten Schneckenrad (31) od. dgl. verbunden ist, in die eine von dem Stellmotor (32) angetriebene Schneckenwelle (34) eingreift.7. Apparatus according to claim 5 and / or 6, characterized in that the threaded sleeve (26) is connected to a worm wheel (31) or the like arranged coaxially therewith, into which a worm shaft (34) driven by the servomotor (32) ) intervenes. 8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß der Schneckenwelle (34) eine ein manuelles Verschieben der den Messerkopf (18, 19) tragenden Antriebswelle (4) ermöglichende, feststellbare Handhabe (47) od. dgl. zugeordnet ist.8. The device according to claim 7, characterized in that the A worm shaft (34) is assigned a lockable handle (47) or the like which enables the drive shaft (4) carrying the cutter head (18, 19) to be moved manually.
EP87108228A 1986-06-19 1987-06-06 Device for automatically adjusting the knives of a meat-mincing machine Expired - Lifetime EP0249840B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87108228T ATE56893T1 (en) 1986-06-19 1987-06-06 DEVICE FOR AUTOMATIC ADJUSTMENT OF THE BLADE SET OF A MEAT MINCING MACHINE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3620598A DE3620598C2 (en) 1986-06-19 1986-06-19 Device for automatically adjusting the cutting set of a meat chopping machine
DE3620598 1986-06-19

Publications (3)

Publication Number Publication Date
EP0249840A2 true EP0249840A2 (en) 1987-12-23
EP0249840A3 EP0249840A3 (en) 1988-11-30
EP0249840B1 EP0249840B1 (en) 1990-09-26

Family

ID=6303289

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Application Number Title Priority Date Filing Date
EP87108228A Expired - Lifetime EP0249840B1 (en) 1986-06-19 1987-06-06 Device for automatically adjusting the knives of a meat-mincing machine

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US (1) US4775108A (en)
EP (1) EP0249840B1 (en)
JP (1) JPS6323757A (en)
AT (1) ATE56893T1 (en)
CA (1) CA1298534C (en)
DE (1) DE3620598C2 (en)
DK (1) DK167855B1 (en)
ES (1) ES2017671B3 (en)
FI (1) FI87619C (en)
NO (1) NO171402C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420001A1 (en) * 1989-09-23 1991-04-03 Karl Schnell GmbH & Co. Maschinenfabrik Meat-mincing machine
EP0574694A1 (en) * 1992-05-12 1993-12-22 Karl Schnell GmbH & Co. Maschinenfabrik Cutting tool for a machine for comminution of pasty substances
DE4420693A1 (en) * 1994-06-14 1995-12-21 Inofex Gmbh Tightening and adjusting device for cutting set of meat grinder
US5699970A (en) * 1996-07-11 1997-12-23 2 M Tool Co., Inc. Meat-comminuting machine with improved vacuum discharge mechanism
WO1998028078A1 (en) * 1996-12-21 1998-07-02 Tiromat Kraemer + Grebe Gmbh & Co. Kg Chopper with a fixing device
EP2987557B1 (en) 2014-08-22 2017-05-03 Karl Schnell GmbH & Co. KG Grinding machine for grinding of a product

Families Citing this family (4)

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DE3921109C2 (en) * 1989-06-28 1999-06-17 Schnell Maschfab Karl Shredding machine
DE3931813A1 (en) * 1989-09-23 1991-04-04 Schnell Maschfab Karl CUTTING SET FOR A CRUSHING MACHINE
JPH0784010B2 (en) * 1991-11-29 1995-09-13 株式会社神戸製鋼所 Underwater cutting granulator
DE19960409A1 (en) * 1999-12-15 2001-06-21 Inotec Gmbh Maschinenentwicklu Device for comminuting a material to be comminuted

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CH385654A (en) * 1960-03-26 1964-12-15 Carl Schnell Maschinenfabrik Chopping machine for meat, bread or the like.
DE1657220A1 (en) * 1968-03-01 1971-02-11 Vemag Verdener Masch App Meat grinder

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DE1657220A1 (en) * 1968-03-01 1971-02-11 Vemag Verdener Masch App Meat grinder

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0420001A1 (en) * 1989-09-23 1991-04-03 Karl Schnell GmbH & Co. Maschinenfabrik Meat-mincing machine
EP0574694A1 (en) * 1992-05-12 1993-12-22 Karl Schnell GmbH & Co. Maschinenfabrik Cutting tool for a machine for comminution of pasty substances
DE4420693A1 (en) * 1994-06-14 1995-12-21 Inofex Gmbh Tightening and adjusting device for cutting set of meat grinder
US5699970A (en) * 1996-07-11 1997-12-23 2 M Tool Co., Inc. Meat-comminuting machine with improved vacuum discharge mechanism
WO1998028078A1 (en) * 1996-12-21 1998-07-02 Tiromat Kraemer + Grebe Gmbh & Co. Kg Chopper with a fixing device
WO1998028079A1 (en) * 1996-12-21 1998-07-02 Tiromat Kraemer + Grebe Gmbh & Co. Kg Meat chopper
EP2987557B1 (en) 2014-08-22 2017-05-03 Karl Schnell GmbH & Co. KG Grinding machine for grinding of a product
US10682650B2 (en) 2014-08-22 2020-06-16 Karl Schnell Gmbh & Co. Kg Mincing machine for mincing a product

Also Published As

Publication number Publication date
US4775108A (en) 1988-10-04
ATE56893T1 (en) 1990-10-15
DK310487A (en) 1987-12-20
FI87619C (en) 1993-02-10
JPS6323757A (en) 1988-02-01
NO872561L (en) 1987-12-21
FI87619B (en) 1992-10-30
EP0249840B1 (en) 1990-09-26
NO171402C (en) 1993-03-10
DE3620598A1 (en) 1987-12-23
ES2017671B3 (en) 1991-03-01
EP0249840A3 (en) 1988-11-30
NO171402B (en) 1992-11-30
CA1298534C (en) 1992-04-07
DK310487D0 (en) 1987-06-18
NO872561D0 (en) 1987-06-18
DK167855B1 (en) 1993-12-27
DE3620598C2 (en) 1997-08-14
FI872710A (en) 1987-12-20
FI872710A0 (en) 1987-06-17

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