EP0646441B1 - Device for reducing microbial growth in a machine for food processing - Google Patents

Device for reducing microbial growth in a machine for food processing Download PDF

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Publication number
EP0646441B1
EP0646441B1 EP94112036A EP94112036A EP0646441B1 EP 0646441 B1 EP0646441 B1 EP 0646441B1 EP 94112036 A EP94112036 A EP 94112036A EP 94112036 A EP94112036 A EP 94112036A EP 0646441 B1 EP0646441 B1 EP 0646441B1
Authority
EP
European Patent Office
Prior art keywords
machine
housing
heating
air
heating system
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.)
Expired - Lifetime
Application number
EP94112036A
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German (de)
French (fr)
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EP0646441A1 (en
Inventor
Günter Diete
Christoph Ullmann
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Dixie Union Verpackungen GmbH
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Dixie Union Verpackungen GmbH
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Publication of EP0646441A1 publication Critical patent/EP0646441A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/08—Means for treating work or cutting member to facilitate cutting
    • B26D7/088—Means for treating work or cutting member to facilitate cutting by cleaning or lubricating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0025—Sterilizing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/929—Particular nature of work or product
    • Y10S83/932—Edible
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/242—With means to clean work or tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/283—With means to control or modify temperature of apparatus or work

Definitions

  • the invention relates to a machine for machining or processing, especially for slicing food, for example von Wurst, with a machine housing for moving machine parts.
  • Machines of the type described above are described, for example, in air-conditioned rooms used where at a low Temperature there is a high relative humidity. In the Processing food is always a big concern put on hygiene. However, it is not always complete possible to achieve a hygienically acceptable level of germs guarantee.
  • Germ is the generic term here for living things such as microplasmas, bacteria, viruses, fungi or Understand spores. With contamination of the product Germination is therefore always to be expected.
  • the bare, external surfaces are included, for example High pressure cleaners and corresponding chemicals cleaned, however, the rinsing liquid may run through the Machine off. It penetrates behind the one that forms the metal housing Metal cover and runs off in the housing.
  • the dirty water now includes e.g. organic remains of the meat to be sliced, Water and chemicals added to the water. This mix provides an ideal breeding ground for different germs, and especially because of what is inside the machine The climate is promoted by certain germs.
  • the machines often have housing parts that are difficult to remove behind which a breeding ground then develops.
  • WO-A-9 209 409 is known from the prior art. This property right shows a meat grinder or one Slicer with an optional heater for heating of the material to be cut. This machine serves the sliced good, e.g. B. for the creation of occupied Bun already to warm up, thereby causing the processing accelerate. However, this document does not refer to the Contamination problems on generic machines.
  • DE-A-2 428 612 describes a method for aseptic
  • Cutting meat and sausages as well as a Disc cutting machine for performing this method known.
  • the cutting knife is at a high Constant temperature warmed, thereby causing the death on the Cutting knife to reach germs.
  • a disadvantage of this embodiment is that the high continuous temperature of the Cutting knife to impair the cut Food.
  • This prior art also shows not the problems with the organic culture medium in the Inside of the machine housing.
  • the invention has set itself the task of machines to improve the type described above in that the Creation of e.g. sliced foods, such as Sausages or the like in a hygienic, low-germ environment happens.
  • the invention proposes a machine accordingly of independent claims 1, 2 or 3 before.
  • the nutrient medium that can accumulate inside the machine housing, also warmed. This means that for the population of Germs and bacteria are created an environment that their Propagation hindered. Furthermore, the heating of the Machine housing a drying and drying of the nutrient medium, whereby the Quality of the nutrient medium deteriorates. By an appropriate Temperature, the germs are killed directly, taking it it is important here that the temperature is not chosen too high otherwise the machine can be damaged.
  • the gearbox is encapsulated, but out of the gearbox protrudes the drive shaft or the carrier shaft for the revolving knife axis.
  • the gap between the gearbox and the rotating elements can be very difficult or impossible not be hermetically sealed.
  • the comparatively large one Diameter and the high speed leave the arrangement effective seals at the annular passage gap not too.
  • the outer parts of the case are cleaned daily or after each Layer cleaned intensively.
  • a jet with a cleaning liquid hits with high pressure on the one to be cleaned Area on.
  • Example of cut residues and other organic material that through the high pressure jet through the gap into the housing is rinsed. This creates a for the development of Germinating favorable breeding ground, for example, because of the difficult disassembly of the housing is rarely removed.
  • the cutting knife is above the storage surface of the cut Clippings, and there is a risk that Drops of liquid with a high germ concentration on the Clippings fall. This can make a food hygienic on the clippings questionable concentration of germs arise.
  • the forced-air heating is a blower, a Air filter, an air dryer and a heating element.
  • the air heated by a heating element is blown by a fan promoted.
  • the air filter is e.g. arranged so that he is easy to remove and clean, the air dryer removes the pumped air moisture, thus the conditions for the germs worsen.
  • the blower and the heating element in the gear housing of the cutting knife is provided.
  • the heating element is thus in the immediate vicinity of the room to be heated, which means a Temperature control is easily possible.
  • the waste heat from the heating element thus also heats the gearbox.
  • an air baffle is the heated air distributed in the machine or gear housing.
  • the air guiding devices can e.g. as air baffles or as pipe or Hose system can be formed with openings. This will make the heated air, for example, to the points in the housing directed, on which a nutrient medium develops preferentially. Furthermore, the air guiding device produces a homogeneous one Temperature distribution in the housing.
  • Heating element is connected downstream of the blower and the heating element the air flowing through is sterilized.
  • the heating also works direct killing of the germs due to the high temperature a drying out of the nutrient medium, causing its surface Spread is prevented.
  • the dried breeding ground encrusted and loosened dusty from the surface. Of the Detached dust is removed by the circulating air heater. It it is now possible that the dust particles are still alive inside Contains germs, but these are in the heating element killed when the dust particles burn up in the heating element. This will sterilize the air.
  • the fan in the housing one Negative pressure generated.
  • This surface heating consists, for example, of one Insulated aluminum or other metal tape glued to the inside of the housing and through which current flows is.
  • the surface heating on at least part of the inside of the Housing rests.
  • the penetrating, contaminated with germs Flushing water collects on the bottom of the housing.
  • the housing has openings for draining the liquids, anyway it is possible that nutrient media can develop, in particular Sections of the sausage or the material to be sliced are not flow away.
  • These organic residues lie on one, for example surface heating provided on the inside of the floor on and are heated and / or dried there so much that the germs can no longer multiply.
  • that for regulating the temperature, the relative humidity and the pressure in the housing and the temperature of the Housing climate control is provided with the Control of the machine or the machine line interacts.
  • the machine described above is operated in shifts and, for example, completely complete after each shift cleaned. To ensure a low level of germs even in a machine housing To achieve, it is not always possible to find the inside of the To clean the machine housing. If now the machine on End of shift is cleaned, it is possible in the control to provide a program that subsequently leads to heating of the housing leads.
  • the climate control regulates on the basis of recorded data (temperature, relative humidity, Pressure etc.) the heating. This creates a climate that is unfavorable for the growth of the germs.
  • a fresh or Sterile air admixer is provided. This will be a Exchange of air in the forced-air heating causes.
  • sterile air can hinder the growth of the germs especially if e.g. one for the metabolic process unfavorable gas is added to the germs.
  • heating phases are used to heat the housing provided in the control of the machine or the line are. For example, it is not depending on the location of the machine always possible to keep the case at a certain temperature hold. It is often sufficient to have heating phases in the Provide control of the line that heats up the housing cause and thus reduce the number of germs.
  • the food slicer 1 consists of a frame 15, which has a product support surface 7. On the product support surface 7 lies the good 2 to be cut. For transportation of the material to be cut 2, for example, funding is provided, that are not shown here.
  • the material to be cut 2 is turned against a rotating cutting knife 4 promoted.
  • the cutting knife 4 runs eccentrically around the axis 25 of the drive 5 um.
  • the planetary gear 6 becomes the Example of the same drive 5 as the cutting knife 4 driven.
  • the orbit of the cutting knife is in Fig. 2 designated 23.
  • the cutting knife drive 5, the axis 25 lies above the product support surface 7 and the material to be cut 2, is covered by a housing 3 like the planetary gear 6.
  • This gap 8 is shown enlarged in FIG. 2.
  • the circumferential cutting knife 4 is from a cover 18 covered. This cover 18 is connected to the housing 3.
  • the material to be cut 2 is cut open by the circumferential cutting knife 4, 1 in front of the cutting machine 1 in FIG Edition 17 is indicated, on which a stack 10 of food, for example of sliced sausage.
  • the cover 18 can be removed and the cutting knife 4 from the Axis 24 is removable.
  • the behind the cutting knife 4 lying housing wall 26, which for example runs vertically here, is now, for example, with a steam jet cleaner hosed.
  • openings 31 are provided in the bottom 27.
  • the Liquid is discharged from the machine through the discharge line 38 or derived from the machine housing. Nevertheless organic remains Material, splash water, etc. in the housing.
  • the housing 3 be heated to design.
  • a heater 9 is provided. It is possible that the heater 9 consists of a panel heater 11.
  • the surface heating 11 is on the inside 28 of the housing 3 intended. It is also possible for the surface heating 11 both the bottom 27 and the vertical flanks of the Lining inside 28.
  • FIG. 2 Another possibility of providing a heater 9 is shown in FIG. 2 shown.
  • a forced air heater is shown here, which consists of a Heating element 32, a blower 14, a filter 13, an air dryer 19 and one connecting these elements 13, 14, 32 and 19 Channel 12 exists.
  • the arrangement of the elements 13, 14, For example, 32 and 19 can be any.
  • At 29 she is Direction of flow of air in the circulating air heater. It it is possible to design this forced air heating as a closed system.
  • the fan 14, or others, not shown Blowers form a negative pressure in the housing 3. This will avoided that germs or other used air from the Housing 3 are given uncleaned in the work area.
  • By providing an air dryer 19 or an air mixer 20, or with the filter 13 is a permanent Purification of the air in the housing 3 achieved.
  • the air mixer 20 it is z. B. possible, the air in the housing Supply fresh or sterile air.
  • the blower 36 is inside the Housing 3 arranged. It is provided, for example, that the blower 36 here in the upper half of the housing 3 is attached.
  • a heater is connected downstream of the blower 36 35.
  • the heater 35 is e.g. from a glowing heating wire.
  • the fan 36 draws in the air and promotes the sucked-in air through the heating device 35 the outlet opening of the heater 35 are air baffles 34 provided. These air baffles ensure an optimal Distribution of the heated air inside the case 3 reached. It is provided here that the air baffles 34 are arranged so that the air to the surface inner housing is directed where a breeding ground prefers to form. Usually these are the horizontally in the lower area of the Housing surfaces.
  • the blower 36 sucks the warming air through a hose or duct 33.
  • an intake manifold 37 provided that e.g. provided in one place in the housing 3 which is not directly in the flow area of the pumped There is air.
  • the invention thereby achieves an additional one Air flow also in the parts of the housing that are not air due to the position of the air baffles. Thereby becomes a more homogeneous temperature distribution in the housing 3 achieved.
  • This climate control is, for example, with the control of the machine or connected to the machine line, and influences accordingly the heating system. This makes it e.g. possible at one too high conductivity of the nutrient medium by switching on the heating cause the nutrient medium to dry out. It is also possible, that a program for phased heating periods e.g. in the Shift breaks etc. is provided.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Meat, Egg Or Seafood Products (AREA)
  • Processing Of Solid Wastes (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • General Preparation And Processing Of Foods (AREA)

Description

Die Erfindung betrifft eine Maschine zum Be- oder Verarbeiten, insbesondere zum Aufschneiden von Lebensmitteln, zum Beispiel von Wurst, mit einem Maschinengehäuse für bewegliche Maschinenteile.The invention relates to a machine for machining or processing, especially for slicing food, for example von Wurst, with a machine housing for moving machine parts.

Maschinen der oben beschriebenen Art werden zum Beispiel in klimatisierten Räumen eingesetzt, wo bei einer geringen Temperatur eine hohe relative Luftfeuchtigkeit besteht. Bei der Verarbeitung von Lebensmitteln wird immer ein großes Augenmerk auf Hygiene gelegt. Trotzdem ist es nicht immer vollständig möglich, ein hygienisch vertretbares Maß an Keimen zu gewährleisten. Machines of the type described above are described, for example, in air-conditioned rooms used where at a low Temperature there is a high relative humidity. In the Processing food is always a big concern put on hygiene. However, it is not always complete possible to achieve a hygienically acceptable level of germs guarantee.

Selbst nach einer gründlichen Reinigung der Maschine ist es möglich, daß eine gewisse Konzentration von Keimen an bzw. in der Maschine vorhanden ist. Keim ist hierbei als Oberbegriff für Lebewesen wie Microplasmen, Bakterien, Viren, Pilze oder Sporen zu verstehen. Mit einer Kontamination des Produktes mit Keimen ist somit immer zu rechnen.Even after thoroughly cleaning the machine, it is possible that a certain concentration of germs on or in the machine is present. Germ is the generic term here for living things such as microplasmas, bacteria, viruses, fungi or Understand spores. With contamination of the product Germination is therefore always to be expected.

Das Reinigen der Maschinen ist in der Regel schwierig. Die blanken, außenliegenden Oberflächen werden zum Beispiel mit Hochdruckreinigern und entsprechenden Chemikalien gereinigt, die Spülflüssigkeit läuft jedoch unter Umständen durch die Maschine ab. Sie dringt hinter die das Metallgehäuse bildende Metallabdeckung und läuft in dem Gehäuse ab. Das Schmutzwasser beinhaltet nun z.B. organische Reste des Aufschnittgutes, Wasser und dem Wasser beigesetzte Chemikalien. Diese Mischung ergibt für verschiedene Keime einen idealen Nährboden, und insbesondere durch das im Inneren der Maschine herrschende Klima wird die Population von gewissen Keimen gefördert. Oftmals weisen die Maschinen schlecht entfernbare Gehäuseteile auf, hinter denen sich dann ein Nährboden entwickelt.Cleaning the machines is usually difficult. The bare, external surfaces are included, for example High pressure cleaners and corresponding chemicals cleaned, however, the rinsing liquid may run through the Machine off. It penetrates behind the one that forms the metal housing Metal cover and runs off in the housing. The dirty water now includes e.g. organic remains of the meat to be sliced, Water and chemicals added to the water. This mix provides an ideal breeding ground for different germs, and especially because of what is inside the machine The climate is promoted by certain germs. The machines often have housing parts that are difficult to remove behind which a breeding ground then develops.

Aus dem Stand der Technik ist die WO-A-9 209 409 bekannt. Dieses Schutzrecht zeigt einen Fleischwolf bzw. eine Aufschnittvorrichtung mit einer optionalen Heizung zum Erwärmen des Schneidgutes. Diese Maschine dient dazu, das aufgeschnittene Gut, z. B. für die Erstellung von belegten Brötchen, bereits zu erwärmen, um dadurch die Bearbeitung zu beschleunigen. Dieses Dokument weist jedoch nicht auf die Kontaminationsprobleme an gattungsgebenden Maschinen hin. Aus der DE-A-2 428 612 ist ein Verfahren zum aseptischenWO-A-9 209 409 is known from the prior art. This property right shows a meat grinder or one Slicer with an optional heater for heating of the material to be cut. This machine serves the sliced good, e.g. B. for the creation of occupied Bun already to warm up, thereby causing the processing accelerate. However, this document does not refer to the Contamination problems on generic machines. DE-A-2 428 612 describes a method for aseptic

Schneiden von Fleisch- und Wurstwaren sowie eine Scheibenschneidmaschine zur Durchführung dieses Verfahrens bekannt. Hierbei wird das Schneidmesser auf eine hohe Dauertemperatur erwärmt, um dadurch ein Absterben der auf dem Schneidmesser befindlichen Keime zu erreichen. Nachteilig bei dieser Ausgestaltung ist es, daß die hohe Dauertemperatur des Schneidmessers zu einer Beeinträchtigung des aufgeschnittenen Lebensmittels führen kann. Auch zeigt dieser Stand der Technik nicht die Probleme mit dem organischen Nährboden im Maschinengehäuseinneren auf.Cutting meat and sausages as well as a Disc cutting machine for performing this method known. Here the cutting knife is at a high Constant temperature warmed, thereby causing the death on the Cutting knife to reach germs. A disadvantage of this embodiment is that the high continuous temperature of the Cutting knife to impair the cut Food. This prior art also shows not the problems with the organic culture medium in the Inside of the machine housing.

Die Erfindung hat es sich zur Aufgabe gemacht, Maschinen der eingangs beschriebenen Art dahingehend zu verbessern, daß die Erstellung von z.B. aufgeschnittenen Lebensmitteln, wie z.B. Wurstaufschnitten oder dergleichen in einer hygienischen, keimarmen Umgebung geschieht.The invention has set itself the task of machines to improve the type described above in that the Creation of e.g. sliced foods, such as Sausages or the like in a hygienic, low-germ environment happens.

Zur Lösung dieser Aufgabe schlägt die Erfindung eine Maschine entsprechend der unabhängigen Patentansprüche 1, 2 oder 3 vor.To achieve this object, the invention proposes a machine accordingly of independent claims 1, 2 or 3 before.

Durch eine Erwärmung des Maschinengehäuses wird der Nährboden, der sich innerhalb des Maschinengehäuses ansammeln kann, ebenfalls erwärmt. Das bedeutet, daß für die Population von Keimen und Bakterien eine Umgebung geschaffen wird, die deren Vermehrung behindert. Des weiteren bewirkt das Aufheizen des Maschinengehäuses ein Ab- und Austrocknen des Nährbodens, wodurch die Qualität des Nährbodens verschlechtert wird. Durch eine entsprechende Temperatur werden die Keime direkt getötet, wobei es hier wichtig ist, daß die Temperatur nicht zu hoch gewählt wird, da ansonsten die Maschine Schaden nehmen kann.By heating the machine housing, the nutrient medium, that can accumulate inside the machine housing, also warmed. This means that for the population of Germs and bacteria are created an environment that their Propagation hindered. Furthermore, the heating of the Machine housing a drying and drying of the nutrient medium, whereby the Quality of the nutrient medium deteriorates. By an appropriate Temperature, the germs are killed directly, taking it it is important here that the temperature is not chosen too high otherwise the machine can be damaged.

Es hat sich als vorteilhaft herausgestellt, wenn das Getriebegehäuse des Schneidmessers erwärmbar ist. Insbesondere das Getriebegehäuse für den Antrieb des Schneidkopfes ist schwierig zu reinigen, da für die Reinigung umfangreiche und zeitaufwendige Demontagen notwendig sind.It has proven to be advantageous if the gear housing the cutting knife is heated. Especially that Gear housing for driving the cutting head is difficult to clean as extensive and for cleaning time-consuming disassembly is necessary.

Das Getriebegehäuse ist zwar gekapselt, aber aus dem Getriebegehäuse ragt die Antriebswelle bzw. die Trägerwelle für die umlaufende Messerachse heraus. Der Spalt zwischen dem Getriebegehäuse und den rotierenden Elementen kann sehr schwer bzw. gar nicht hermetisch abgedichtet werden. Der vergleichsweise große Durchmesser und die hohe Drehzahl lassen die Anordnung wirksamer Dichtungen am ringförmigen Durchtrittspalt nicht zu.The gearbox is encapsulated, but out of the gearbox protrudes the drive shaft or the carrier shaft for the revolving knife axis. The gap between the gearbox and the rotating elements can be very difficult or impossible not be hermetically sealed. The comparatively large one Diameter and the high speed leave the arrangement effective seals at the annular passage gap not too.

Die äußeren Teile des Gehäuses werden täglich bzw. nach jeder Schicht intensiv gereinigt. Ein Strahl mit einer Reinigungsflüssigkeit trifft mit hohem Druck auf der zu reinigenden Fläche auf. In dem beschriebenen Spalt befinden sich zum Beispiel Schnittreste und anderes organisches Material, das durch den Hochdruckstrahl durch den Spalt in das Gehäuse gespült wird. Dadurch entsteht ein für die Entwicklung von Keimen günstiger Nährboden, der zum Beispiel aufgrund der schwierigen Demontage des Gehäuses selten entfernt wird.The outer parts of the case are cleaned daily or after each Layer cleaned intensively. A jet with a cleaning liquid hits with high pressure on the one to be cleaned Area on. In the gap described there are Example of cut residues and other organic material that through the high pressure jet through the gap into the housing is rinsed. This creates a for the development of Germinating favorable breeding ground, for example, because of the difficult disassembly of the housing is rarely removed.

Das Schneidmesser befindet sich über der Ablagefläche des aufgeschnittenen Schnittgutes, und es besteht die Gefahr, daß Flüssigkeitstropfen mit hoher Keimkonzentration auf das Schnittgut fallen. Dadurch kann auf dem Schnittgut eine lebensmittelhygienisch bedenkliche Keimkonzentration entstehen. The cutting knife is above the storage surface of the cut Clippings, and there is a risk that Drops of liquid with a high germ concentration on the Clippings fall. This can make a food hygienic on the clippings questionable concentration of germs arise.

Durch Vorsehung einer Heizung in diesem Gehäuse wird die Vermehrung von Keimen beeinträchtigt bzw. verhindert.By providing a heater in this housing, the Propagation of germs impaired or prevented.

Es hat sich als vorteilhaft erwiesen, wenn als Heizung eine Umluftheizung vorgesehen ist. Durch die Verwendung einer Umluftheizung ist es mit einfachen Mitteln möglich, in dem Gehäuse eine möglichst homogene Temperaturverteilung zu erzielen.It has proven to be advantageous if a Forced air heating is provided. By using a Convection heating is possible with simple means in which The temperature distribution should be as homogeneous as possible achieve.

Es ist von Vorteil, wenn die Umluftheizung ein Gebläse, einen Luftfilter, einen Lufttrockner und ein Heizelement aufweist. Die durch ein Heizelement erwärmte Luft wird durch ein Gebläse umgefördert. Der Luftfilter ist z.B. so angeordnet, daß er leicht entnehmbar und reinigbar ist, der Lufttrockner entzieht der umgepumpten Luft Feuchtigkeit, um somit die Bedingungen für die Keime zu verschlechtern.It is advantageous if the forced-air heating is a blower, a Air filter, an air dryer and a heating element. The air heated by a heating element is blown by a fan promoted. The air filter is e.g. arranged so that he is easy to remove and clean, the air dryer removes the pumped air moisture, thus the conditions for the germs worsen.

Ferner wird vorgeschlagen, daß es günstig ist, wenn das Gebläse und das Heizelement in dem Getriebegehäuse des Schneidmessers vorgesehen ist. Das Heizelement befindet sich somit in unmittelbarer Nähe des zu beheizenden Raumes, wodurch eine Temperaturregelung einfach möglich ist. Die Abwärme des Heizelementes heizt somit ebenfalls das Getriebegehäuse.It is also proposed that it is favorable if the blower and the heating element in the gear housing of the cutting knife is provided. The heating element is thus in the immediate vicinity of the room to be heated, which means a Temperature control is easily possible. The waste heat from the heating element thus also heats the gearbox.

Es ist günstig, wenn eine Luftleitvorrichtung die erwärmte Luft im Maschinen- bzw. Getriebegehäuse verteilt. Die Luftleitvorrichtungen können z.B. als Luftleitbleche oder als Rohr- bzw. Schlauchsystem mit Öffnungen ausgebildet sein. Dadurch wird die erwärmte Luft beispielsweise zu den Stellen im Gehäuse geleitet, an welchen sich bevorzugt ein Nährboden entwickelt. Des weiteren bewirkt die Luftleitvorrichtung eine homogene Temperaturverteilung in dem Gehäuse.It is beneficial if an air baffle is the heated air distributed in the machine or gear housing. The air guiding devices can e.g. as air baffles or as pipe or Hose system can be formed with openings. This will make the heated air, for example, to the points in the housing directed, on which a nutrient medium develops preferentially. Furthermore, the air guiding device produces a homogeneous one Temperature distribution in the housing.

In Versuchen ist gefunden worden, daß es günstig ist, wenn das Heizelement dem Gebläse nachgeschaltet ist und das Heizelement die durchströmende Luft sterilisiert. Die Heizung bewirkt neben einem direkten Abtöten der Keime durch die hohe Temperatur auch ein Austrocknen des Nährbodens, wodurch dessen flächenmäßige Ausbreitung verhindert wird. Der abgetrocknete Nährboden verkrustet und löst sich staubartig von der Oberfläche. Der abgelöste Staub wird von der Umluftheizung abtransportiert. Es ist nun möglich, daß die Staubkörnchen im Inneren noch lebende Keime enthalten, diese werden jedoch in dem Heizelement getötet, wenn die Staubkörnchen in dem Heizelement verglühen. Dadurch wird die Luft sterilisiert.Experiments have found that it is beneficial if that Heating element is connected downstream of the blower and the heating element the air flowing through is sterilized. The heating also works direct killing of the germs due to the high temperature a drying out of the nutrient medium, causing its surface Spread is prevented. The dried breeding ground encrusted and loosened dusty from the surface. Of the Detached dust is removed by the circulating air heater. It it is now possible that the dust particles are still alive inside Contains germs, but these are in the heating element killed when the dust particles burn up in the heating element. This will sterilize the air.

Es ist vorteilhaft, wenn das Gebläse in dem Gehäuse einen Unterdruck erzeugt. Durch eine solche erfindungsgemäße Ausgestaltung wird vermieden, daß Keime oder Verunreinigungen, die sich in dem Gehäuse ansammeln, aus dem Gehäuse herausgeblasen werden. Hierzu ist z.B. neben dem Gebläse der Umluftheizung ein weiteres Gebläse vorgesehen.It is advantageous if the fan in the housing one Negative pressure generated. By such an embodiment according to the invention it is avoided that germs or impurities that accumulate in the housing, blown out of the housing will. For this, e.g. next to the fan of the fan heater additional blower provided.

In Versuchen hat es sich herausgestellt, daß besonders gute Ergebnisse erzielt werden, wenn das Gehäuse eine Flächenheizung aufweist. Diese Flächenheizung besteht zum Beispiel aus einem auf der Innenseite des Gehäuses aufgeklebten, isolierten Aluminium- oder anderen Metallband, das von Strom durchflossen ist.Experiments have shown that particularly good ones Results are achieved when the housing has panel heating having. This surface heating consists, for example, of one Insulated aluminum or other metal tape glued to the inside of the housing and through which current flows is.

Es hat sich als vorteilhaft herausgestellt, wenn die Flächenheizung auf mindestens einer Teilfläche der Innenseite des Gehäuses aufliegt. Das eindringende, mit Keimen verschmutzte Spülwasser sammelt sich am Boden des Gehäuses. Das Gehäuse weist Öffnungen zum Abfließen der Flüssigkeiten auf, trotzdem ist es möglich, daß sich Nährböden entwickeln können, da insbesondere Abschnitte der Wurst oder des Schneidgutes nicht abfließen. Diese organischen Reste liegen auf einer beispielsweise auf der Innenseite des Bodens vorgesehenen Flächenheizung auf und werden dort so sehr erwärmt und/oder getrocknet, daß sich die Keime nicht weiter vermehren können.It has proven to be advantageous if the surface heating on at least part of the inside of the Housing rests. The penetrating, contaminated with germs Flushing water collects on the bottom of the housing. The housing has openings for draining the liquids, anyway it is possible that nutrient media can develop, in particular Sections of the sausage or the material to be sliced are not flow away. These organic residues lie on one, for example surface heating provided on the inside of the floor on and are heated and / or dried there so much that the germs can no longer multiply.

Besonders gute Ergebnisse wurden erzielt, wenn zum Heizen des Gehäuses das Zusammenwirken von mehreren Heizungen vorgesehen ist. Durch die Kombination von zwei oder mehreren Heizungen, wie zum Beispiel einer Umluftheizung und einer Flächenheizung wird die Wirkung einer Heizung stark erhöht, da nicht nur das Klima des Gehäuses, sondern auch das Gehäuse selber erwärmt wird und somit die Lebensbedingungen für Keime drastisch verschlechtert werden.Particularly good results have been achieved when heating the housing provides for the interaction of several heaters is. By combining two or more heaters, such as a forced-air heating and surface heating the effect of a heater is greatly increased because not only the climate of the housing, but also the housing itself is warmed and thus the living conditions for germs be drastically deteriorated.

In einer bevorzugten Ausbildung der Erfindung wird vorgesehen, daß für die Regelung der Temperatur, der relativen Luftfeuchtigkeit und des Druckes im Gehäuse und der Temperatur des Gehäuses eine Klimasteuerung vorgesehen ist, die mit der Steuerung der Maschine bzw. der Maschinenlinie zusammenwirkt. Die vorbeschriebene Maschine wird im Schichtbetrieb betrieben und zum Beispiel nach jeder Schicht äußerlich vollständig gereinigt. Um auch in einem Maschinengehäuse eine hohe Keimarmut zu erzielen, ist es nicht immer möglich, das Innere des Maschinengehäuses zu reinigen. Wenn nun die Maschine am Schichtende gereinigt wird, ist es möglich, in der Steuerung ein Programm vorzusehen, das anschließend zu einer Aufheizung des Gehäuses führt. Die Klimasteuerung regelt auf Grund der aufgenommenen Daten (Temperatur, relative Luftfeuchtigkeit, Druck usw.) die Heizung. Hiermit wird ein Klima geschaffen, das für das Wachstum der Keime ungünstig ist.In a preferred embodiment of the invention, that for regulating the temperature, the relative humidity and the pressure in the housing and the temperature of the Housing climate control is provided with the Control of the machine or the machine line interacts. The machine described above is operated in shifts and, for example, completely complete after each shift cleaned. To ensure a low level of germs even in a machine housing To achieve, it is not always possible to find the inside of the To clean the machine housing. If now the machine on End of shift is cleaned, it is possible in the control to provide a program that subsequently leads to heating of the housing leads. The climate control regulates on the basis of recorded data (temperature, relative humidity, Pressure etc.) the heating. This creates a climate that is unfavorable for the growth of the germs.

Günstige Ergebnisse werden erzielt, wenn die Umluftheizung ein geschlossenes System ist.Favorable results are achieved when the forced air heater is on closed system is.

Ferner wird vorgeschlagen, daß in der Umluftheizung ein Frisch- oder Sterilluftzumischer vorgesehen ist. Hierdurch wird ein Austausch der Luft in der Umluftheizung bewirkt. Durch das Zumischen von Sterilluft kann das Wachstum der Keime behindert werden, insbesondere wenn z.B. ein für den Stoffwechselprozeß der Keime ungünstiges Gas beigemischt wird.It is also proposed that a fresh or Sterile air admixer is provided. This will be a Exchange of air in the forced-air heating causes. By the The addition of sterile air can hinder the growth of the germs especially if e.g. one for the metabolic process unfavorable gas is added to the germs.

Es ist besonders günstig, wenn zum Aufheizen des Gehäuses Heizphasen in der Steuerung der Maschine oder der Linie vorgesehen sind. Zum Beispiel ist es je nach Einsatzort der Maschine nicht immer möglich, das Gehäuse auf einer gewissen Temperatur zu halten. Oftmals ist es bereits ausreichend, Heizphasen in der Steuerung der Linie vorzusehen, die ein Aufheizen des Gehäuses bewirken und somit die Anzahl der Keime reduzieren.It is particularly advantageous if heating phases are used to heat the housing provided in the control of the machine or the line are. For example, it is not depending on the location of the machine always possible to keep the case at a certain temperature hold. It is often sufficient to have heating phases in the Provide control of the line that heats up the housing cause and thus reduce the number of germs.

In Versuchen hat es sich als günstig herausgestellt, wenn die Temperatur im Inneren des Gehäuses in einem Bereich von 59° bis 67° C regelbar ist. Bei Temperaturen, die größer als 59° C sind, werden Keimkolonien bereits wirkungsvoll bekämpft, jedoch bei Temperaturen über 67° C läuft man Gefahr, daß die Mechanik der Maschine, insbesondere die Antriebselemente beschädigt oder beeinträchtigt werden.In trials, it turned out to be favorable if the Temperature inside the case in a range from 59 ° to 67 ° C is adjustable. At temperatures greater than 59 ° C colonies are already being effectively combated, however at temperatures above 67 ° C there is a risk that the mechanics the machine, especially the drive elements, or be affected.

Ferner ist gefunden worden, daß sehr gute Ergebnisse erzielt werden, wenn die Temperatur des Gehäuses 59° C beträgt. In der von Herrn Tierarzt Hans-Werner Stille vorgelegten Dissertation (Institut für Lebensmittelhygiene an der Ludwig-Maximilians-Universität, München, 1994) wird auf den Einfluß von Temperaturen auf Keime und deren Populationsentwicklung eingegangen. Hierbei ist gefunden worden, daß bei einer Aufheizung des Gehäuseinneren auf ca. 59° C, möglichst über einen längeren Zeitraum, die Entwicklung von Keimen wirksam beeinträchtigt wird.It has also been found that very good results are achieved when the temperature of the housing is 59 ° C. In the dissertation submitted by veterinarian Hans-Werner Stille (Institute for Food Hygiene at the Ludwig Maximilians University, Munich, 1994) will look at the influence of temperatures on germs and their population development. It has been found that when the Interior of the housing to approx. 59 ° C, if possible over a longer one Period that germ development is effectively impaired becomes.

In der Zeichnung ist eine erfindungsgemäße Maschine schematisch dargestellt. Es zeigen:

Fig. 1
einen lotrechten Schnitt einer Seitenansicht einer erfindungsgemäßen Maschine und
Fig. 2
einen lotrechten Schnitt durch eine Vorderansicht einer erfindungsgemäßen Maschine entsprechend der Schnittlinie II-II in Fig. 1,
Fig. 3
einen lotrechten Schnitt durch eine Vorderansicht einer weiteren Ausgestaltung einer erfindungsgemäßen Maschine.
A machine according to the invention is shown schematically in the drawing. Show it:
Fig. 1
a vertical section of a side view of a machine according to the invention and
Fig. 2
2 shows a vertical section through a front view of a machine according to the invention along the section line II-II in FIG. 1,
Fig. 3
a vertical section through a front view of a further embodiment of a machine according to the invention.

Die Lebensmittelaufschneidemaschine 1 besteht aus einem Gestell 15, das eine Produktauflagefläche 7 aufweist. Auf der Produktauflagefläche 7 liegt das zu schneidende Gut 2 auf. Zum Transport des Schneidgutes 2 sind zum Beispiel Fördermittel vorgesehen, die hier nicht gezeigt sind.The food slicer 1 consists of a frame 15, which has a product support surface 7. On the product support surface 7 lies the good 2 to be cut. For transportation of the material to be cut 2, for example, funding is provided, that are not shown here.

Das Schneidgut 2 wird gegen ein umlaufendes Schneidmesser 4 gefördert. Das Schneidmesser 4 läuft exzentrisch um die Achse 25 des Antriebes 5 um. Hierzu ist ein planetenartiges Getriebe 6 vorgesehen. Das planetenartige Getriebe wird hierbei zum Beispiel von dem gleichen Antrieb 5 wie das Schneidmesser 4 angetrieben. Die Umlaufbahn des Schneidmessers ist in Fig. 2 mit 23 bezeichnet. Der Schneidmesserantrieb 5, dessen Achse 25 oberhalb der Produktauflagefläche 7 und dem Schneidgut 2 liegt, ist wie das Planetengetriebe 6 von einem Gehäuse 3 abgedeckt.The material to be cut 2 is turned against a rotating cutting knife 4 promoted. The cutting knife 4 runs eccentrically around the axis 25 of the drive 5 um. For this is a planetary gear 6 provided. The planetary gear becomes the Example of the same drive 5 as the cutting knife 4 driven. The orbit of the cutting knife is in Fig. 2 designated 23. The cutting knife drive 5, the axis 25 lies above the product support surface 7 and the material to be cut 2, is covered by a housing 3 like the planetary gear 6.

Zwischen dem Schneidmesserantrieb 5 bzw. dem planetenartigen Getriebe 6 und dem Gehäuse 3 besteht ein Spalt 8. Dieser Spalt 8 ist in Fig. 2 vergrößert dargestellt.Between the cutting knife drive 5 or the planet-like Gear 6 and the housing 3 there is a gap 8. This gap 8 is shown enlarged in FIG. 2.

Das umlaufende Schneidmesser 4 ist von einer Abdeckhaube 18 verdeckt. Diese Abdeckhaube 18 ist mit dem Gehäuse 3 verbunden.The circumferential cutting knife 4 is from a cover 18 covered. This cover 18 is connected to the housing 3.

Durch das umlaufende Schneidmesser 4 wird das Schneidgut 2 aufgeschnitten, wobei in Fig. 1 vor der Schneidmaschine 1 eine Auflage 17 angedeutet ist, auf der ein Stapel 10 von Lebensmitteln, beispielsweise von aufgeschnittener Wurst, aufliegt.The material to be cut 2 is cut open by the circumferential cutting knife 4, 1 in front of the cutting machine 1 in FIG Edition 17 is indicated, on which a stack 10 of food, for example of sliced sausage.

Zum Reinigen der Maschine 1 ist es vorgesehen, daß die Abdeckhaube 18 abgenommen werden kann und das Schneidmesser 4 von der Achse 24 entfernbar ist. Die hinter dem Schneidmesser 4 liegende Gehäusewand 26, die hier zum Beispiel senkrecht verläuft, wird nun beispielsweise mit einem Dampfstrahlreiniger abgespritzt.To clean the machine 1, it is provided that the cover 18 can be removed and the cutting knife 4 from the Axis 24 is removable. The behind the cutting knife 4 lying housing wall 26, which for example runs vertically here, is now, for example, with a steam jet cleaner hosed.

Es ist nun möglich, daß durch die nicht hermetische Abdichtung des Spaltes 8 Spritzwasser und Verunreinigungen (z.B. organisches Material, Abschnittmaterial usw.) in das Gehäuse 3 eindringen und sich am Boden 27 des Gehäuses 3 ansammeln.It is now possible that the non-hermetic seal of the gap 8 splash water and impurities (e.g. organic material, section material, etc.) into the housing 3 penetrate and accumulate on the bottom 27 of the housing 3.

Damit beispielsweise die Flüssigkeit nach dem Reinigen ablaufen kann, sind in dem Boden 27 Öffnungen 31 vorgesehen. Die Flüssigkeit wird durch die Ableitung 38 aus der Maschine, bzw. dem Maschinengehäuse abgeleitet. Trotzdem verbleibt organisches Material, Spritzwasser usw. in dem Gehäuse.So that, for example, the liquid runs off after cleaning can, openings 31 are provided in the bottom 27. The Liquid is discharged from the machine through the discharge line 38 or derived from the machine housing. Nevertheless organic remains Material, splash water, etc. in the housing.

Erfindungsgemäß wird vorgeschlagen, das Gehäuse 3 beheizbar auszugestalten. Hierzu ist eine Heizung 9 vorgesehen. Es ist möglich, daß die Heizung 9 aus einer Flächenheizung 11 besteht. Die Flächenheizung 11 ist auf der Innenseite 28 des Gehäuses 3 vorgesehen. Es ist auch möglich, daß die Flächenheizung 11 sowohl den Boden 27 wie auch die senkrechten Flanken der Innenseite 28 auskleidet.According to the invention, it is proposed that the housing 3 be heated to design. For this purpose, a heater 9 is provided. It is possible that the heater 9 consists of a panel heater 11. The surface heating 11 is on the inside 28 of the housing 3 intended. It is also possible for the surface heating 11 both the bottom 27 and the vertical flanks of the Lining inside 28.

Eine andere Möglichkeit, eine Heizung 9 vorzusehen, ist in Fig. 2 gezeigt. Hier ist eine Umluftheizung gezeigt, die aus einem Heizelement 32, einem Gebläse 14, einem Filter 13, einem Lufttrockner 19 und einer diese Elemente 13, 14, 32 und 19 verbindenden Kanal 12 besteht. Die Anordnung der Elemente 13, 14, 32 und 19 kann beispielsweise beliebig sein. Mit 29 ist die Strömungsrichtung der Luft in der Umluftheizung bezeichnet. Es ist möglich, diese Umluftheizung als geschlossenes System auszubilden. Das Gebläse 14, oder weitere, nicht dargestellte Gebläse bilden in dem Gehäuse 3 einen Unterdruck. Dadurch wird vermieden, daß Keime, bzw. sonstige verbrauchte Luft aus dem Gehäuse 3 ungereinigt in den Arbeitsraum abgegeben werden. Durch das Vorsehen eines Lufttrockners 19 oder eines Luftzumischers 20, bzw. mit dem Filter 13 wird eine dauerhafte Reinigung der Luft in dem Gehäuse 3 erzielt. Durch den Luftzumischer 20 ist es z. B. möglich, der Luft in dem Gehäuse Frisch- oder Sterilluft zuzuführen.Another possibility of providing a heater 9 is shown in FIG. 2 shown. A forced air heater is shown here, which consists of a Heating element 32, a blower 14, a filter 13, an air dryer 19 and one connecting these elements 13, 14, 32 and 19 Channel 12 exists. The arrangement of the elements 13, 14, For example, 32 and 19 can be any. At 29 she is Direction of flow of air in the circulating air heater. It it is possible to design this forced air heating as a closed system. The fan 14, or others, not shown Blowers form a negative pressure in the housing 3. This will avoided that germs or other used air from the Housing 3 are given uncleaned in the work area. By providing an air dryer 19 or an air mixer 20, or with the filter 13 is a permanent Purification of the air in the housing 3 achieved. By the air mixer 20 it is z. B. possible, the air in the housing Supply fresh or sterile air.

Es ist besonders vorteilhaft, eine Kombination von mehreren Heizungen vorzusehen, zum Beispiel ist es möglich, eine Flächenheizung 11 mit einer Umluftheizung zu kombinieren. Dadurch wird zum einen durch die Flächenheizung ein optimales Austrocknen des Nährbodens erreicht, zum anderen wird durch die Umluftheizung die in dem Gehäuse befindliche Luft getrocknet und gereinigt und somit die Vermehrung behindert bzw. die Lebensbedingungen für Keime usw. konsequent verschlechtert.It is particularly advantageous to use a combination of several Provide heaters, for example, it is possible to have one Combine surface heating 11 with a circulating air heater. This means that, on the one hand, the surface heating makes an optimal one Drying out of the nutrient medium is achieved, on the other hand through the Convection heating dried the air in the housing and cleaned and thus hindered the reproduction or the Living conditions for germs etc. consistently worsened.

In Fig. 3 ist eine weitere Variante der Erfindung gezeigt. In diesem Ausführungsbeispiel ist das Gebläse 36 im Inneren des Gehäuses 3 angeordnet. Es ist beispielsweise vorgesehen, daß das Gebläse 36 hier in der oberen Hälfte des Gehäuses 3 befestigt ist. Dem Gebläse 36 nachgeschaltet ist eine Heizeinrichtung 35. Die Heizeinrichtung 35 besteht z.B. aus einem glühenden Heizdraht. Das Gebläse 36 saugt die Luft an und fördert die angesaugte Luft durch die Heizeinrichtung 35. An der Ausgangsöffnung der Heizvorrichtung 35 sind Luftleitbleche 34 vorgesehen. Durch diese Luftleitbleche wird eine optimale Verteilung der erwärmten Luft in dem Inneren des Gehäuses 3 erreicht. Es ist hierbei vorgesehen, daß die Luftleitbleche 34 so angeordnet sind, daß die Luft an die Flächeninnengehäuse geleitet wird, wo sich ein Nährboden bevorzugt ausbildet. In der Regel sind dies die horizontal im unteren Bereich des Gehäuses verlaufenden Flächen. Das Gebläse 36 saugt die zu erwärmende Luft über einen Schlauch oder Kanal 33 an. An dem offenen Ende des Schlauches 33 ist ein Ansaugstutzen 37 vorgesehen, der z.B. an einem Ort in den Gehäuse 3 vorgesehen ist, der nicht direkt in dem Strömungsbereich der umgepumpten Luft liegt. Dadurch erreicht die Erfindung eine zusätzliche Luftströmung auch in den Teilen des Gehäuses, in die nicht Luft aufgrund der Stellung der Luftleitbleche geführt wird. Dadurch wird eine homogenere Temperaturverteilung in dem Gehäuse 3 erzielt.3 shows a further variant of the invention. In In this embodiment, the blower 36 is inside the Housing 3 arranged. It is provided, for example, that the blower 36 here in the upper half of the housing 3 is attached. A heater is connected downstream of the blower 36 35. The heater 35 is e.g. from a glowing heating wire. The fan 36 draws in the air and promotes the sucked-in air through the heating device 35 the outlet opening of the heater 35 are air baffles 34 provided. These air baffles ensure an optimal Distribution of the heated air inside the case 3 reached. It is provided here that the air baffles 34 are arranged so that the air to the surface inner housing is directed where a breeding ground prefers to form. Usually these are the horizontally in the lower area of the Housing surfaces. The blower 36 sucks the warming air through a hose or duct 33. To the open end of the hose 33 is an intake manifold 37 provided that e.g. provided in one place in the housing 3 which is not directly in the flow area of the pumped There is air. The invention thereby achieves an additional one Air flow also in the parts of the housing that are not air due to the position of the air baffles. Thereby becomes a more homogeneous temperature distribution in the housing 3 achieved.

Des weiteren ist es möglich, eine intelligente Klimasteuerung für beispielsweise die Temperatur, die relative Luftfeuchtigkeit oder die Leitfähigkeit des Nährbodens vorzusehen. Diese Klimasteuerung ist zum Beispiel mit der Steuerung der Maschine oder der Maschinenlinie verbunden, und beeinflußt dementsprechend die Heizung. Dadurch ist es z.B. möglich, bei einer zu hohen Leitfähigkeit des Nährbodens durch Anschalten der Heizung ein Abtrocknen des Nährbodens zu bewirken. Es ist auch möglich, daß ein Programm für phasenweise Heizperioden z.B. in den Schichtpausen usw. vorgesehen ist.It is also possible to use intelligent climate control for example the temperature, the relative humidity or to provide the conductivity of the nutrient medium. This Climate control is, for example, with the control of the machine or connected to the machine line, and influences accordingly the heating system. This makes it e.g. possible at one too high conductivity of the nutrient medium by switching on the heating cause the nutrient medium to dry out. It is also possible, that a program for phased heating periods e.g. in the Shift breaks etc. is provided.

Claims (19)

  1. A machine for treating and processing, in particular for slicing food products (2) such as sausage, with a machine housing (3) for movable machine parts and a heating system (9) heating the machine housing (3), characterized in that low pressure can be generated in the substantially closed, incompletely sealed machine housing (3) and in that the heating system is capable of drying an organic medium inside the machine housing (3).
  2. A machine for treating and processing, in particular for slicing food products (2) such as sausage, with a machine housing (3) for movable machine parts and a heating system (9) heating the machine housing (3), characterized in that the heating system is arranged inside the machine housing (3) and the temperature of the housing is controllable within a range of 59° to 67° C and is capable of drying an organic medium inside the substantially closed, incompletely sealed machine housing (3).
  3. A machine for treating and processing, in particular for slicing food products (2) such as sausage, with a machine housing (3) for movable machine parts and a heating system (9) with a fan (14) that heats the machine housing (3), characterized in that the heating system is a recirculating air heating system and the recirculating air heating system has an air duct, the outlet and inlet of which end in the machine housing (3), said air duct having a heating element (32) and the heating system being capable of drying an organic medium inside the substantially closed, incompletely sealed machine housing (3).
  4. A machine according to one of the claims 1 to 3, characterized in that the machine (1) has a cutting blade (4) with a gear unit (6) as the movable machine part, the gear unit (6) being covered by a gear case as machine housing (3).
  5. A machine according to one of the claims 1, 2 or 4, characterized in that the heating system is a recirculating air heating system.
  6. A machine according to one of the claim 3 or 5, characterized in that the recirculating air heating system has a fan (14, 36), an air filter (13) and an air drier (19).
  7. A machine according to claim 6, characterized in that the fan (36) and the heating element (35) are provided in the gear case (3) of the cutting blade.
  8. A machine according to one of the preceding claims, characterized in that an air conducting system (34) distributes the heated air in the machine or gear housing (3).
  9. A machine according to claims 6 or 7, characterized in that the heating element (16, 35) is arranged downstream of the fan (14, 36) and the heating element (16, 35) sterilises the air flowing through.
  10. A machine according to one of the preceding claims, characterized in that a fan in the machine housing (3) generates low pressure.
  11. A machine according to one of the preceding claims, characterized in that the machine housing (3) has a radiant heating system (11).
  12. A machine according to one of the preceding claims, characterized in that the radiant heating system (11) rests on at least part of the inner surface (27,28) of the machine housing (3).
  13. A machine according to one of the preceding claims, characterized in that for heating the machine housing (3) there are several concurrent heating systems.
  14. A machine according to one of the preceding claims, characterized in that there is an ambient atmosphere conditioning system co-operating with the control system of the machine (1) and/or the machine line for regulating the temperature, the relative humidity and the pressure in the machine housing (3) and the temperature of the machine housing (3).
  15. A machine according to one of the preceding claims 3 to 14, characterized in that the recirculating air heating system is a closed system.
  16. A machine according to one of the preceding claims 3 to 14, characterized in that there is a fresh-air, sterilised air and gas mixing system (20) in the recirculating air heating system.
  17. A machine according to one of the preceding claims, characterized in that there are heating phases in the control system of the machine or the machine line for heating the machine housing (3).
  18. A machine according to one of the claims 1, 3 to 17 characterized in that the temperature of the machine housing (3) is capable of being controlled within a range of 59° to 67°C.
  19. A machine according to one of the preceding claims, characterized in that the temperature in the machine housing (3) is 59°C.
EP94112036A 1993-09-30 1994-08-02 Device for reducing microbial growth in a machine for food processing Expired - Lifetime EP0646441B1 (en)

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DE9314838U 1993-09-30
DE9314838U DE9314838U1 (en) 1993-09-30 1993-09-30 Food processing and processing machine

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EP0646441A1 EP0646441A1 (en) 1995-04-05
EP0646441B1 true EP0646441B1 (en) 1998-06-24

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EP (1) EP0646441B1 (en)
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DE59406310D1 (en) 1998-07-30
DK0646441T3 (en) 1999-04-06
US5666868A (en) 1997-09-16
EP0646441A1 (en) 1995-04-05
DE9314838U1 (en) 1993-12-23

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