EP2578369A1 - Method for manufacturing a food cutting machine - Google Patents

Method for manufacturing a food cutting machine Download PDF

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Publication number
EP2578369A1
EP2578369A1 EP12006763.2A EP12006763A EP2578369A1 EP 2578369 A1 EP2578369 A1 EP 2578369A1 EP 12006763 A EP12006763 A EP 12006763A EP 2578369 A1 EP2578369 A1 EP 2578369A1
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EP
European Patent Office
Prior art keywords
machine housing
cutting
housing
base
machine
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
EP12006763.2A
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German (de)
French (fr)
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EP2578369B1 (en
Inventor
Klaus Koch
Timo Capone
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Bizerba SE and Co KG
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Bizerba SE and Co KG
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Publication of EP2578369A1 publication Critical patent/EP2578369A1/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
    • B26D1/01—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 involving a cutting member which does not travel with the work
    • B26D1/12—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B26D1/15—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with vertical cutting member
    • 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
    • B26D1/01—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 involving a cutting member which does not travel with the work
    • B26D1/12—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/14—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
    • B26D1/143—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis
    • B26D1/153—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 involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter rotating about a stationary axis with inclined cutting member
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • 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
    • B26D2210/00—Machines or methods used for cutting special materials
    • B26D2210/02—Machines or methods used for cutting special materials for cutting food products, e.g. food slicers

Definitions

  • the invention relates to a method for producing a food slicing machine according to the features of the preamble of claim 1.
  • the surface must be particularly resistant to abrasion and hygienic.
  • the surface must be resistant to cleaning agents, since the food cutting machines in the industrial environment, in contrast to the much less demanding application of home appliances, very often have to be cleaned or disinfected with aggressive cleaning agents.
  • an aluminum alloy is processed by chill casting, as in the DE 103 16 174 A1 is described. Subsequently, the surface of the castings is then anodized with an anodizing process.
  • the anodized coating meets the requirements for abrasion resistance and chemical resistance better than, for example, a paint job. Coatings are either not suitable for foodstuffs or insufficiently resistant to abrasion for industrial use in food slicing machines.
  • the invention has for its object to provide a method for producing an industrial food cutting machine, in which the manufacturing costs are reduced and at the same time the properties are improved in terms of abrasion resistance and chemical resistance without questioning the suitability of the food.
  • An industrial food slicer which preferably slices strand-like foodstuffs such as sausage, meat or cheese, is made by die casting an aluminum alloy having a silicon content of at least 5% into a machine housing. (The percentages are preferably based on parts by weight). Subsequently, the surface of the machine housing is coated with a polymer-containing coating.
  • aluminum alloy for example, a commercial alloy with a silicon content of at least or greater than or equal to 5% by weight can be used, wherein in addition to silicon other alloying components such.
  • copper or magnesium may be included.
  • Commercially available alloys conform to an international standard, such as AlSi5Mg or AlSi6Cu4 or AlSi7Mg or AlSi9Cu or AlSi9Mg or AlSi10Mg or AlSi11 or AlSi12 alloys. However, another suitable alloy may be used.
  • a reusable mold is created from the machine housing to be cast.
  • the heated and liquid Al alloy is injected into this mold, preferably at a precisely defined injection rate.
  • pressure is applied to the alloy-filled mold by means of a punch. After solidification of the alloy, the machine housing is released from the mold.
  • the mold is chosen so that the machine housing is integrally formed in the casting process.
  • the motor tower in which a cutting motor is completely received for driving a cutting blade, integrally formed on the machine housing.
  • a machine housing can be formed by the method according to the invention be, which has on its outer side inner radii of less than R20 or 20mm, which was previously not possible in machine housings made by chill casting by the inevitably required post-processing.
  • the machine housing can be shaped so that it comprises a space for receiving a carriage guide in its interior.
  • the carriage guide may in particular comprise a sliding axis which extends parallel to a cutting plane defined by the cutting blade, and supports a slide linearly displaceable.
  • the machine housing has in its interior a space for receiving a carriage drive, which moves the carriage driven by a motor.
  • the machine housing may be shaped so that it has a space in its interior for receiving control electronics.
  • the control electronics can be connected to the cutting motor and / or the carriage drive for controlling the same.
  • the machine housing solves well out of the mold, it is necessary that the walls of the machine housing have no vertical course or even undercuts, but a maximum inclination in size of a certain peel angle or EntformungsschrƤge.
  • the peel angle should still be as small as possible, so that even with long wall surfaces, the use of materials can be as low as possible, since according to the peel angle with the length of the wall, the wall thickness inevitably increases. It has shown that with the manufacturing method according to the invention, an advantageous peel angle or EntformungsschrƤge in the range of 3 Ā° to 0.5 Ā° can be realized.
  • the machine housing is released from the mold after the die casting process and then further processed after cooling.
  • the surface of the machine housing can be machined by tumbling or tumbling.
  • the machine housing is together with grinding bodies in a cylindrical or round container against, which is oscillating or rotating. Through the vibratory grinding, the surface of the machine housing is gently processed, in particular smoothed, and / or cleaned and / or matted.
  • the machine housing is tempered.
  • the machine housing is heated for a certain time to a certain temperature in order to expel any gases trapped in the casting. Such gas inclusions would otherwise result in the adhesion of the coating to the surface of the machine housing being reduced.
  • a temperature is used which is at least 20 Ā° C. above the highest temperature necessary for the subsequent coating process. This ensures that no gas is expelled in a subsequent heating.
  • the machine housing is degreased after annealing and then sandblasted. Thereafter, a polymer-containing coating is applied to the surface of the housing.
  • a polymer is advantageously polytetrafluoroethylene, also known under the brand name Teflon Ā® used to obtain a surface with advantageous sliding properties.
  • the coating may contain ceramic parts which are embedded in a stable binder, preferably a matrix of an epoxy resin.
  • a carriage including SchlittenfuƟ and Schneidgutauflage, and / or a stop plate, and / or a blade cover are made.
  • a use of a cutting machine produced by the manufacturing method according to the invention can be carried out, for example, when cutting rope-shaped foods such as meat and / or sausage and / or cheese products.
  • FIGS. 1 and 2 In each case, a cutting machine 1 for cutting food is shown.
  • the in the FIG. 1 shown cutting machine is a vertical cutter and in the FIG. 2 Shown cutting machine shown as an oblique cutter or gravity slicer. Both machines differ in the inclination of the cutting plane, but are similar in design, so that in the description of both figures reference is made.
  • the cutting machine 1 has a machine housing 11, on which a circular cutting blade 15 and a motor 2 reciprocating carriage 2 is mounted.
  • the carriage forms a support for the material to be cut.
  • the lower region of the machine housing 11 is formed as a base or base 16 with a substantially rectangular base, which defines a stable footprint for the machine housing 11.
  • the base or the base 16 has the greatest longitudinal extent and / or the greatest transverse extent of the machine housing 11.
  • the base 16 determines, so to speak, the size of the base surface of the machine housing 11. About attached to the base 16 feet 18, the cutting machine 1 can be placed on a flat surface.
  • the Machine housing 11 comprises at least two installation spaces, a first installation space 21 for a slide guide and a motor tower 14, which forms a second installation space for receiving a cutting motor 52.
  • the installation space for the cutting motor and the slide guide are arranged completely in the interior of the machine housing 11 or at least covered by the machine housing 11 or covered so that they are protected in normal operation against dirt.
  • the machine housing 11 is integrally formed as an entire workpiece and cast in a mold in one operation by an aluminum die casting process.
  • a first space 21 is used to hold a carriage guide
  • another space 31 serves to accommodate a carriage drive
  • still a space 41 serves to accommodate a control electronics 32.
  • a carriage motor 42 for driving a via the carriage foot 23 held sled 2 arranged.
  • the carriage has a carriage plate 28 for supporting cutting material and a hand guard 29 as accident protection.
  • a slide sliding axis is arranged, which supports the slide foot 23 linearly displaceable.
  • a motor tower 14 which rises up from the base 16 of the machine housing, holds in its interior a cutting motor 52, which drives the cutting blade 15 and sets it in rotation.
  • the motor tower 14 is integrally connected to the machine housing or completely integrated as part of the machine housing. It encloses a substantially closed space and has a smooth and in particular joint-free surface and is thus particularly hygienic. Via a control panel 15, the cutting machine 1 can be operated.
  • the cutting blade 11 has at its periphery on a cutting edge, which is covered by a fixedly connected to the housing 13 knife guard ring 51.
  • the knife protection ring 51 comprises the cutting edge C-shaped and leaves only a small front area of the cutting edge free for cutting.
  • the machine housing 11 further has a stop plate 12 as a slice thickness adjustment for the food slices to be cut.
  • the stop plate 12 extends parallel to the cutting blade 15, or a cutting plane defined by the cutting blade 15 and forms a stop for the food placed on the carriage 2.
  • the stop plate 12 can be adjusted parallel to the cutting plane defined by the cutting blade 11 in order to set the cutting thickness and thus the slice thickness of the separated food slices.
  • FIG. 3 is the machine housing 11 of the oblique cutter off FIG. 2 shown in a sectional view.
  • the completely arranged in the interior of the machine housing 11 different installation spaces 21 for receiving a carriage guide, 31 for receiving a carriage drive, and 41 for receiving control electronics are clearly visible.
  • a guide for the slide-sliding axis 25 is arranged, which connects the carriage-sliding axis 25 with the machine housing and thereby ultimately the carriage 2 mechanically stable storage.
  • the machine housing has EntformungsschrƤgen A in order to solve the machine housing well out of a mold can.
  • the EntformungsschrƤgen have an angle in the range of 0.5 Ā° to 3 Ā°.
  • the production of the machine housing 11 is effected by die-cast aluminum in a corresponding form.
  • the alloy used is an aluminum alloy with a silicon content of at least 5%.
  • the alloy may contain other metals, in particular copper, and / or iron and / or magnesium and / or tin.
  • the liquid alloy is poured into the preheated mold. Then, a stamp is applied to the alloy, which is held until it solidifies. Die casting creates a machine housing with a high surface quality. The surface is unfortunately too sensitive to the Requirements in industrial food processing.
  • the machine housing is released from the mold and deburred after cooling. Subsequently, a tumbling (tumbling) of the machine housing by the machine housing is placed together with grinding bodies in a rotating drum. In this case, a gentle surface smoothing of the machine housing takes place. After tumbling, threaded holes can be made in the machine housing. Subsequently, the machine housing is degreased and then annealed. During annealing, the machine housing is heated for a certain time in order to reduce mechanical stresses and possibly to remove gases trapped in the casting. The tempering takes place at a temperature. Which is at least 20 Ā° C higher than the highest temperature required in the subsequent coating process.
  • the surface of the machine housing may be sandblasted and then provided with a polymer coating.
  • a liquid coating is applied, which has as constituents an oxide ceramic, a binder and as a polymer Teflon to meet the necessary properties in terms of mechanical and chemical resistance, as well as food suitability. Only this surface treatment makes it possible to use the machine housing made of die-cast aluminum in industrial food production.
  • the drying of the coating is then carried out in a temperature-controlled process, wherein a first lower temperature level over a certain time a drying process takes place. Then, subsequently, the coating is baked at a higher temperature level, to thereby obtain the necessary mechanical stability of the coating.
  • the stop plate and / or the carriage and / or the SchlittenfuƟ and / or a hand guard can be made accordingly.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Food-Manufacturing Devices (AREA)

Abstract

Preparing industrial foodstuffs cutting machine (1) comprising an integral machine housing (11), comprises: preparing the machine housing made of an aluminum alloy by casting, preferably by die casting the aluminum alloy having silicon (at least 5%); and applying a polymer-containing surface coating on a surface of the housing. The machine housing comprises a housing base and an integral engine tower (14) formed on the base and upstanding from the base, which is constructed preferably for holding a knife protection ring, and a space in its interior to receive a cutting motor. An independent claim is also included for the industrial food cutting machine for cutting string-shaped food into slices, produced by the above method, comprising a rotationally driven cutting knife (15) defining a vertically extending cutting plane, preferably tilted against vertical by an angle of at least 10[deg] .

Description

Die Erfindung betrifft ein Verfahren zur Herstellung einer Lebensmittelschneidemaschine nach den Merkmalen des Oberbegriffs des Anspruchs 1.The invention relates to a method for producing a food slicing machine according to the features of the preamble of claim 1.

An eine Lebensmittelschneidemaschine werden im industriellen Bereich erhƶhte Anforderungen bezĆ¼glich Hygiene und OberflƤchenbeschaffenheit gestellt. Die OberflƤche muss besonders abriebfest und hygienisch sein. Zudem muss die OberflƤche bestƤndig gegen Reinigungsmittel sein, da die Lebensmittelschneidemaschinen im industriellen Umfeld, im Gegensatz zu dem deutlich weniger anspruchsvollen Einsatzbereich von Haushaltsmaschinen, sehr oft mit aggressiven Reinigungsmitteln gereinigt bzw. desinfiziert werden mĆ¼ssen.In a food cutting machine in the industrial sector increased demands are placed on hygiene and surface finish. The surface must be particularly resistant to abrasion and hygienic. In addition, the surface must be resistant to cleaning agents, since the food cutting machines in the industrial environment, in contrast to the much less demanding application of home appliances, very often have to be cleaned or disinfected with aggressive cleaning agents.

In der Praxis wird zu der Herstellung von industriellen Lebensmittelschneidemaschinen daher eine Aluminiumlegierung im Kokillengussverfahren verarbeitet, wie in der DE 103 16 174 A1 beschrieben ist. AnschlieƟend wird die OberflƤche der Gussteile dann mit einem Eloxalverfahren eloxiert. Die Eloxalschicht genĆ¼gt den Anforderungen an Abriebfestigkeit und chemische BestƤndigkeit dabei besser, als beispielsweise eine Lackierung. Lackierungen sind fĆ¼r den industriellen Einsatz bei Lebensmittelschneidemaschinen entweder nicht lebensmitteltauglich oder nicht ausreichend abriebfest.In practice, for the production of industrial food cutting machines, therefore, an aluminum alloy is processed by chill casting, as in the DE 103 16 174 A1 is described. Subsequently, the surface of the castings is then anodized with an anodizing process. The anodized coating meets the requirements for abrasion resistance and chemical resistance better than, for example, a paint job. Coatings are either not suitable for foodstuffs or insufficiently resistant to abrasion for industrial use in food slicing machines.

Der Erfindung liegt die Aufgabe zugrunde ein Verfahren zur Herstellung einer industriellen Lebensmittelschneidemaschine zu schaffen, bei dem die Herstellkosten reduziert und zugleich die Eigenschaften hinsichtlich Abriebfestigkeit und chemische BestƤndigkeit verbessert werden ohne die Lebensmitteltauglichkeit in Frage zu stellen.The invention has for its object to provide a method for producing an industrial food cutting machine, in which the manufacturing costs are reduced and at the same time the properties are improved in terms of abrasion resistance and chemical resistance without questioning the suitability of the food.

Diese Aufgabe wird erfindungsgemƤƟ mit einem Verfahren nach den Merkmalen des Oberbegriffs des Anspruchs 1 gelƶst.This object is achieved by a method according to the features of the preamble of claim 1.

Eine industriellen Lebensmittelschneidemaschine, mit der vorzugsweise strangfƶrmige Lebensmittel wie beispielsweise Wurst, Fleisch oder KƤse in Scheiben geschnitten werden, wird hergestellt, indem eine Aluminiumlegierung mit einem Siliziumanteil von wenigstens 5% im Druckgussverfahren zu einem MaschinengehƤuse verarbeitet wird. (Die prozentualen Angaben beziehen sich vorzugsweise auf Gewichtsanteile) AnschlieƟend erfolgt eine Beschichtung der OberflƤche des MaschinengehƤuses mit einer polymerhaltigen Beschichtung.An industrial food slicer, which preferably slices strand-like foodstuffs such as sausage, meat or cheese, is made by die casting an aluminum alloy having a silicon content of at least 5% into a machine housing. (The percentages are preferably based on parts by weight). Subsequently, the surface of the machine housing is coated with a polymer-containing coating.

Aus dem Stand der Technik ist es dem Fachmann bekannt, dass bei der Herstellung von industriellen Lebensmittelschneidemaschinen die Verwendung von Aluminiumlegierungen mit einem hohen Siliziumanteil ausgeschlossen ist. Eine solche Legierung lƤsst sich nicht eloxieren, da sich das enthaltene Silizium negativ auf das Eloxalverfahren auswirkt. FĆ¼r den Fachmann scheidet daher aufgrund der mangelnden Haltbarkeit der OberflƤche eine solche Al-Legierung fĆ¼r die Herstellung einer industriellen Lebensmittelschneidemaschine aus. Erst durch die Beschichtung der OberflƤche mit der polymerhaltigen Beschichtung wird es erstmals mƶglich, eine solche siliziumhaltige Legierung bei der Herstellung von industriellen Lebensmittelschneidemaschinen zu verwenden. Es ist insbesondere vorgehen, dass die gesamte auƟenliegende, d. h. von AuƟen zugƤngliche, OberflƤche oder zumindest die Teile der OberflƤche des MaschinengehƤuses, die in direktem Kontakt mit Lebensmitteln kommen kƶnnen, mit der polymerhaltigen Beschichtung versehen werden.From the state of the art it is known to the person skilled in the art that in the production of industrial food slicing machines the use of aluminum alloys with a high silicon content is excluded. Such an alloy can not be anodized because the silicon contained has a negative effect on the anodizing process. Because of the lack of durability of the surface, therefore, such an Al alloy will be eliminated by a person skilled in the art for the production of an industrial food slicer. Only by coating the surface with the polymer-containing Coating makes it possible for the first time to use such a silicon-containing alloy in the manufacture of industrial food slicing machines. It is in particular proceed that the entire external, ie externally accessible, surface or at least the parts of the surface of the machine housing, which can come into direct contact with food, are provided with the polymer-containing coating.

Im Unterschied zu den Schneidemaschinen, die fĆ¼r den Privatbereich oder Haushaltsbedarf erhƤltlich sind, sind die Anforderungen an eine Schneidemaschine im industriellen Bereich an Hygiene, mechanische Haltbarkeit und chemische Resistenz gegen Reinigungsmittel erheblich hƶher, da die Schneidemaschinen im rauen Dauereinsatz verwendet werden und sehr oft mit aggressiven Reinigungsverfahren gereinigt bzw. desinfiziert werden mĆ¼ssen. Auch sind die Abmessungen der Schneidemaschinen deutlich grĆ¶ĆŸer, was allein schon andere Herstellungsprozesse bedingt. Es hat sich nun Ć¼berraschenderweise gezeigt, dass mit einer polymerhaltigen-Beschichtung auf einem MaschinengehƤuse, gefertigt aus einer Aluminiumlegierung mit mindestens 5% Silizium im Druckgussverfahren, die Erfordernisse an Haltbarkeit, Lebensmitteltauglichkeit und chemische sowie mechanische Resistenz erfĆ¼llt werden kƶnnen. Dadurch wird auf Ć¼berraschende Weise ein ƤuƟerst effizientes und kostengĆ¼nstiges Herstellungsverfahren geschaffen.Unlike slicing machines, which are available for home or household use, the requirements placed on a cutting machine in the industrial field of hygiene, mechanical durability and chemical resistance to cleaning agents are significantly higher, as the slicers are used in harsh continuous operation and very often with aggressive ones Cleaning process must be cleaned or disinfected. Also, the dimensions of the cutting machines are much larger, which alone requires other manufacturing processes. It has now surprisingly been found that with a polymer-containing coating on a machine housing made of an aluminum alloy with at least 5% silicon in the die casting process, the requirements of durability, food suitability and chemical and mechanical resistance can be met. This surprisingly creates a highly efficient and cost-effective manufacturing process.

Als Aluminiumlegierung kann z.B. eine handelsĆ¼bliche Legierung mit einem Siliziumanteil von mindestens bzw. grĆ¶ĆŸer oder gleich 5% Gewichtsanteil verwendet werden, wobei neben Silizium noch weitere Legierungsbestandteile wie z. B. Kupfer oder Magnesium enthalten sein kƶnnen. HandelsĆ¼blich erhƤltlich sind Legierungen, die einer internationalen Norm entsprechen, wie beispielsweise eine der Legierungen AlSi5Mg, oder AlSi6Cu4 oder ALSi7Mg, oder AlSi9Cu, oder AlSi9Mg, oder AlSi10Mg, oder AlSi11, oder AlSi12. Es kann jedoch auch eine andere passende Legierung verwendet werden.As aluminum alloy, for example, a commercial alloy with a silicon content of at least or greater than or equal to 5% by weight can be used, wherein in addition to silicon other alloying components such. As copper or magnesium may be included. Commercially available alloys conform to an international standard, such as AlSi5Mg or AlSi6Cu4 or AlSi7Mg or AlSi9Cu or AlSi9Mg or AlSi10Mg or AlSi11 or AlSi12 alloys. However, another suitable alloy may be used.

Beim Druckguss wird eine mehrmals verwendbare Form von dem zu gieƟenden MaschinengehƤuses erstellt. In diese Form wird die erhitzte und flĆ¼ssige Al-Legierung, vorzugsweise mit genau festgelegter Injektionsgeschwindigkeit, injiziert. AnschlieƟend wird auf die mit der Legierung gefĆ¼llte Form mittels eines Stempels Druck ausgeĆ¼bt. Nach dem Erstarren der Legierung wird das MaschinengehƤuse aus der Form gelƶst.In die casting, a reusable mold is created from the machine housing to be cast. The heated and liquid Al alloy is injected into this mold, preferably at a precisely defined injection rate. Subsequently, pressure is applied to the alloy-filled mold by means of a punch. After solidification of the alloy, the machine housing is released from the mold.

Um hohen hygienischen Anforderungen zu genĆ¼gen wird die Form so gewƤhlt, dass das MaschinengehƤuse in dem Gussverfahren einstĆ¼ckig ausgeformt wird. So wird der Motorturm, in dem ein Schneidmotor zum Antrieb eines Schneidmessers vollstƤndig aufgenommen ist, einstĆ¼ckig an dem MaschinengehƤuse angeformt. Dadurch werden die ansonsten durch das FĆ¼gen einzelner Komponenten zwangsweise notwendigen zusƤtzlichen Fugen in der OberflƤche des MaschinengehƤuses vermieden.In order to meet high hygienic requirements, the mold is chosen so that the machine housing is integrally formed in the casting process. Thus, the motor tower, in which a cutting motor is completely received for driving a cutting blade, integrally formed on the machine housing. As a result, the otherwise required by the joining of individual components additional joints in the surface of the machine housing are avoided.

Durch die im Druckgussverfahren erzielbare OberflƤchengĆ¼te kann eine aufwendige Bearbeitung der OberflƤche durch FrƤsen oder Bandschleifen, wie sie beim herkƶmmlichen Kokillenguss regelmƤƟig notwendig ist, entfallen. Zudem kann durch das erfindungsgemƤƟe Verfahren ein MaschinengehƤuse ausgebildet werden, welches an seiner AuƟenseite Innenradien von weniger als R20 bzw. 20mm aufweist, was bei im Kokillenguss hergestellten MaschinengehƤusen durch die zwangslƤufig erforderliche Nachbearbeitung bislang nicht mƶglich war.By achievable in the die-casting surface quality can be a costly machining of the surface by milling or belt grinding, as is regularly necessary in conventional chill casting accounts. In addition, a machine housing can be formed by the method according to the invention be, which has on its outer side inner radii of less than R20 or 20mm, which was previously not possible in machine housings made by chill casting by the inevitably required post-processing.

Vorteilhafterweise kann das MaschinengehƤuse so geformt sein, dass es in seinem Inneren einen Bauraum zur Aufnahme einer SchlittenfĆ¼hrung umfasst. Die SchlittenfĆ¼hrung kann insbesondere eine Gleitachse umfassen, die sich parallel zu einer durch das Schneidmesser definierten Schneidebene erstreckt, und einen Schlitten linear verschiebbar lagert.Advantageously, the machine housing can be shaped so that it comprises a space for receiving a carriage guide in its interior. The carriage guide may in particular comprise a sliding axis which extends parallel to a cutting plane defined by the cutting blade, and supports a slide linearly displaceable.

Von Vorteil ist, wenn das MaschinengehƤuse in seinem Inneren einen Bauraum zur Aufnahme eines Schlittenantriebs aufweist, der den Schlitten motorisch angetrieben bewegt.It is advantageous if the machine housing has in its interior a space for receiving a carriage drive, which moves the carriage driven by a motor.

In einer AusfĆ¼hrung kann das MaschinengehƤuse so geformt sein, dass es in seinem Inneren einen Bauraum zur Aufnahme einer Steuerelektronik aufweist. Die Steuerelektronik kann dabei mit dem Schneidmotor und/oder dem Schlittenantrieb zum steuern derselben verbunden sein.In one embodiment, the machine housing may be shaped so that it has a space in its interior for receiving control electronics. The control electronics can be connected to the cutting motor and / or the carriage drive for controlling the same.

Damit sich das MaschinengehƤuse gut aus der Form lƶst ist es notwendig, dass die WƤnde des MaschinengehƤuses keinen senkrechten Verlauf oder gar Hinterschneidungen, sondern eine maximale Neigung in GrĆ¶ĆŸe eines bestimmten Ablƶsewinkels bzw. EntformungsschrƤge aufweisen. Der Ablƶsewinkel sollte dennoch mƶglichst klein sein, damit auch bei langen WandflƤchen der Materialeinsatz mƶglichst gering sein kann, da entsprechend des Ablƶsewinkels mit der LƤnge der Wand die Wanddicke zwangslƤufig zunimmt. Es hat sich gezeigt, dass mit dem erfindungsgemƤƟen Herstellungsverfahren ein vorteilhafter Ablƶsewinkel oder eine EntformungsschrƤge im Bereich von 3Ā° bis 0,5Ā° realisierbar ist.Thus, the machine housing solves well out of the mold, it is necessary that the walls of the machine housing have no vertical course or even undercuts, but a maximum inclination in size of a certain peel angle or EntformungsschrƤge. The peel angle should still be as small as possible, so that even with long wall surfaces, the use of materials can be as low as possible, since according to the peel angle with the length of the wall, the wall thickness inevitably increases. It has shown that with the manufacturing method according to the invention, an advantageous peel angle or EntformungsschrƤge in the range of 3 Ā° to 0.5 Ā° can be realized.

Es ist insbesondere vorgesehen, dass das MaschinengehƤuse nach dem Druckgussvorgang aus der Form gelƶst wird und dann nach dem AbkĆ¼hlen weiter bearbeitet wird. Insbesondere kann die OberflƤche des MaschinengehƤuses durch Gleitschleifen oder Trowalieren bearbeitet werden. Dazu wird das MaschinengehƤuse zusammen mit Schleifkƶrpern in einen zylinderfƶrmigen oder runden BehƤlter gegen, der oszillierend oder rotierend bewegt wird. Durch das Gleitschleifen wird die OberflƤche des MaschinengehƤuses schonend bearbeitet, insbesondere geglƤttet, und/oder gereinigt und/oder mattiert.It is provided in particular that the machine housing is released from the mold after the die casting process and then further processed after cooling. In particular, the surface of the machine housing can be machined by tumbling or tumbling. For this purpose, the machine housing is together with grinding bodies in a cylindrical or round container against, which is oscillating or rotating. Through the vibratory grinding, the surface of the machine housing is gently processed, in particular smoothed, and / or cleaned and / or matted.

AnschlieƟend ist vorgesehen, dass das MaschinengehƤuse getempert wird. Dabei wird das MaschinengehƤuse fĆ¼r eine gewisse Zeit auf eine bestimmte Temperatur erwƤrmt um eventuell in dem Guss eingeschlossene Gase auszutreiben. Solche GaseinschlĆ¼sse wĆ¼rden ansonsten dazu fĆ¼hren, dass die Haftung der Beschichtung auf der OberflƤche des MaschinengehƤuses reduziert sein kƶnnte. Beim Tempern wird insbesondere eine Temperatur verwendet, die mindestens 20Ā°C oberhalb der hƶchsten bei dem nachfolgenden Beschichtungsprozess notwendigen Temperatur liegt. Damit wird sichergestellt, dass bei einem nachfolgenden Erhitzen kein Gas mehr ausgetrieben wird.It is then provided that the machine housing is tempered. The machine housing is heated for a certain time to a certain temperature in order to expel any gases trapped in the casting. Such gas inclusions would otherwise result in the adhesion of the coating to the surface of the machine housing being reduced. During annealing, in particular a temperature is used which is at least 20 Ā° C. above the highest temperature necessary for the subsequent coating process. This ensures that no gas is expelled in a subsequent heating.

Um die Haftung zu verbessern, ist vorgesehen, dass das MaschinengehƤuse nach dem Tempern entfettet und anschlieƟend sandgestrahlt wird. Danach wird eine polymerhaltige Beschichtung auf die OberflƤche des GehƤuses aufgebracht. Als Polymer wird dabei vorteilhafterweise Polytetrafluorethylen, auch bekannt unter dem Markennamen TeflonĀ® verwendet, um eine OberflƤche mit vorteilhaften Gleiteigenschaften zu erhalten. Als weiteren Bestandteil kann die Beschichtung Keramikteile enthalten, die in einem stabilen Bindemittel, vorzugsweise einer Matrix aus einem Epoxidharz, eingebettet sind.In order to improve the adhesion, it is provided that the machine housing is degreased after annealing and then sandblasted. Thereafter, a polymer-containing coating is applied to the surface of the housing. As a polymer is advantageously polytetrafluoroethylene, also known under the brand name Teflon Ā® used to obtain a surface with advantageous sliding properties. As a further component, the coating may contain ceramic parts which are embedded in a stable binder, preferably a matrix of an epoxy resin.

Mit dem erfindungsgemƤƟen Herstellungsverfahren kƶnnen auch weitere Bestandteile einer industriellen Lebensmittelschneidemaschine, wie z. B. ein Schlitten inklusive SchlittenfuƟ und Schneidgutauflage, und/oder eine Anschlagplatte, und/oder eine Messerabdeckung hergestellt werden.With the manufacturing method according to the invention also other components of an industrial food cutting machine, such. B. a carriage including SchlittenfuƟ and Schneidgutauflage, and / or a stop plate, and / or a blade cover are made.

Eine Verwendung einer mit dem erfindungsgemƤƟen Herstellungsverfahren hergestellten Schneidemaschine kann beispielsweise beim Schneiden von strangfƶrmigen Lebensmitteln wie Fleisch und/oder Wurst und/oder KƤseerzeugnissen erfolgen.A use of a cutting machine produced by the manufacturing method according to the invention can be carried out, for example, when cutting rope-shaped foods such as meat and / or sausage and / or cheese products.

Weitere AusfĆ¼hrungsbeispiele der Erfindung sind in den Figuren dargestellt und der dazugehƶrenden Beschreibung beschrieben.Further embodiments of the invention are illustrated in the figures and the associated description.

Es zeigen,

Figur 1:
Eine schematische Ansicht eines Vertikalschneiders;
Figur 2:
Eine schematische Ansicht eines SchrƤgschneiders;
Figur 3:
Einen Schnitt durch das MaschinengehƤuses des SchrƤgschneiders.
Show it,
FIG. 1:
A schematic view of a vertical cutter;
FIG. 2:
A schematic view of an oblique cutter;
FIG. 3:
A section through the machine housing of the oblique cutter.

In den Figuren 1 und 2 ist jeweils eine Schneidemaschine 1 zum Schneiden von Lebensmittel dargestellt. Die in der Figur 1 dargestellte Schneidemaschine ist als Vertikalschneider und die in der Figur 2 dargestellte Schneidemaschine als SchrƤgschneider bzw. Gravity-slicer dargestellt. Beide Maschinen unterscheiden sich in der Neigung der Schneidenebene, sind aber vom konstruktiven Aufbau her Ƥhnlich, so dass bei der Beschreibung auf beide Figuren Bezug genommen wird.In the FIGS. 1 and 2 In each case, a cutting machine 1 for cutting food is shown. The in the FIG. 1 shown cutting machine is a vertical cutter and in the FIG. 2 Shown cutting machine shown as an oblique cutter or gravity slicer. Both machines differ in the inclination of the cutting plane, but are similar in design, so that in the description of both figures reference is made.

Die Schneidemaschine 1 weist ein MaschinengehƤuse 11 auf, an dem ein kreisfƶrmiges Schneidmesser 15 und ein motorisch hin- und her- beweglicher Schlitten 2 gelagert ist. Der Schlitten bildet eine Auflage fĆ¼r das Schneidgut. Der untere Bereich des MaschinengehƤuses 11 ist als Sockel oder Basis 16 mit im Wesentlichen rechteckiger GrundflƤche ausgebildet, die eine stabile StandflƤche fĆ¼r das MaschinengehƤuse 11 definiert. Der Sockel bzw. die Basis 16 weist die grĆ¶ĆŸte LƤngserstreckung und/oder die grĆ¶ĆŸte Quererstreckung des MaschinengehƤuses 11 auf. Die Basis 16 bestimmt sozusagen die GrĆ¶ĆŸe der GrundflƤche des MaschinengehƤuses 11. Ɯber an der Basis 16 angebrachte FĆ¼ĆŸe 18 kann die Schneidemaschine 1 auf einem ebenen Untergrund aufgestellt werden. Das MaschinengehƤuse 11 umfasst wenigstens zwei BaurƤume, ein erster Bauraum 21 fĆ¼r eine SchlittenfĆ¼hrung und einen Motorturm 14, der einen zweiten Bauraum fĆ¼r die Aufnahme eines Schneidmotors 52 bildet. Die BaurƤume fĆ¼r den Schneidmotor und die SchlittenfĆ¼hrung sind dabei vollstƤndig im Inneren des MaschinengehƤuses 11 angeordnet oder werden zumindest von dem MaschinengehƤuse 11 so abgedeckt oder Ć¼berdeckt, dass sie im normalen Betrieb gegen Schmutz geschĆ¼tzt sind. Das MaschinengehƤuse 11 wird als gesamtes WerkstĆ¼ck einstĆ¼ckig ausgebildet und in einer Form in einem Arbeitsgang durch ein Aluminium-Druckgussverfahren gegossen.The cutting machine 1 has a machine housing 11, on which a circular cutting blade 15 and a motor 2 reciprocating carriage 2 is mounted. The carriage forms a support for the material to be cut. The lower region of the machine housing 11 is formed as a base or base 16 with a substantially rectangular base, which defines a stable footprint for the machine housing 11. The base or the base 16 has the greatest longitudinal extent and / or the greatest transverse extent of the machine housing 11. The base 16 determines, so to speak, the size of the base surface of the machine housing 11. About attached to the base 16 feet 18, the cutting machine 1 can be placed on a flat surface. The Machine housing 11 comprises at least two installation spaces, a first installation space 21 for a slide guide and a motor tower 14, which forms a second installation space for receiving a cutting motor 52. The installation space for the cutting motor and the slide guide are arranged completely in the interior of the machine housing 11 or at least covered by the machine housing 11 or covered so that they are protected in normal operation against dirt. The machine housing 11 is integrally formed as an entire workpiece and cast in a mold in one operation by an aluminum die casting process.

Die Unterseite des GehƤuses 11 ist die Basis 16 nach unten Ć¼ber eine abnehmbare Bodenwanne 19 spritzwasserdicht abgedeckt. Die Bodenwanne ist beispielsweise ein Kunststoft-Spritzgussteil. Hinter der abnehmbaren Bodenwanne 19 sind innerhalb des GehƤuses 11 verschiedene BaurƤume angeordnet. Ein erster Bauraum 21 dient zur Aufnahme einer SchlittenfĆ¼hrung, ein weiterer Bauraum 31 dient zur Aufnahme eines Schlittenantriebs, und noch ein Bauraum 41 dient zur Aufnahme einer Steuerelektronik 32. In dem Bauraum 31 zur Aufnahme eines Schlittenantriebs ist ein Schlittenmotor 42 zum Antrieb eines Ć¼ber den SchlittenfuƟ 23 gehalterten Schlittens 2 angeordnet. Der Schlitten weist eine Schlittenplatte 28 zur Auflage von Schneidgut sowie einen Handschutz 29 als Unfallschutz auf. In dem Bauraum fĆ¼r die SchlittenfĆ¼hrung ist eine Schlittengleitachse angeordnet, die den SchlittenfuƟ 23 linear verschiebbar lagert.The bottom of the housing 11, the base 16 is covered splash-proof over a removable bottom tray 19 down. The bottom tray is for example a Kunststoft injection molded part. Behind the removable bottom tray 19 11 different space are arranged within the housing. A first space 21 is used to hold a carriage guide, another space 31 serves to accommodate a carriage drive, and still a space 41 serves to accommodate a control electronics 32. In the space 31 for receiving a carriage drive is a carriage motor 42 for driving a via the carriage foot 23 held sled 2 arranged. The carriage has a carriage plate 28 for supporting cutting material and a hand guard 29 as accident protection. In the space for the carriage guide a slide sliding axis is arranged, which supports the slide foot 23 linearly displaceable.

Ein von der Basis 16 des MaschinengehƤuses nach oben aufragender Motorturm 14 haltert in seinem Inneren einen Schneidmotor 52, der das Schneidmesser 15 antreibt und in Rotation versetzt. Der Motorturm 14 ist einstĆ¼ckig mit dem MaschinengehƤuse verbunden bzw. als Teil des MaschinengehƤuses vollstƤndig integriert. Er umschlieƟt einen im wesentlichen geschlossenen Bauraum und weist eine glatte und insbesondere fugenfreie OberflƤche auf und ist so besonders hygienisch ausgebildet. Ɯber ein Bedienfeld 15 kann die Schneidemaschine 1 bedient werden. Das Schneidmesser 11 weist an seinem Umfang eine Schneide auf, die von einem fest mit dem GehƤuse 13 verbundenen Messerschutzring 51 abgedeckt ist. Als Unfallschutz umfasst der Messerschutzring 51 die Schneide C-fƶrmig und lƤsst nur einen kleinen vorderen Bereich der Schneide zum Schneiden frei.A motor tower 14, which rises up from the base 16 of the machine housing, holds in its interior a cutting motor 52, which drives the cutting blade 15 and sets it in rotation. The motor tower 14 is integrally connected to the machine housing or completely integrated as part of the machine housing. It encloses a substantially closed space and has a smooth and in particular joint-free surface and is thus particularly hygienic. Via a control panel 15, the cutting machine 1 can be operated. The cutting blade 11 has at its periphery on a cutting edge, which is covered by a fixedly connected to the housing 13 knife guard ring 51. As accident protection, the knife protection ring 51 comprises the cutting edge C-shaped and leaves only a small front area of the cutting edge free for cutting.

Das MaschinengehƤuse 11 weist weiter eine Anschlagplatte 12 als SchnittstƤrkeneinstellung fĆ¼r die zu schneidenden Lebensmittelscheiben auf. Die Anschlagplatte 12 verlƤuft parallel zu dem Scheidmesser 15, bzw. einer durch das Schneidmesser 15 definierten Schneidebene und bildet einen Anschlag fĆ¼r die auf den Schlitten 2 aufgelegten Lebensmittel. Ɯber einen am MaschinengehƤuse 11 angeordneten Drehknopf 17 kann die Anschlagplatte 12 parallel zu der durch das Schneidmesser 11 definierten Schneidebene verstellt werden, um die SchnittstƤrke und damit die Scheibendicke der abgetrennten Lebensmittelscheiben einzustellen.The machine housing 11 further has a stop plate 12 as a slice thickness adjustment for the food slices to be cut. The stop plate 12 extends parallel to the cutting blade 15, or a cutting plane defined by the cutting blade 15 and forms a stop for the food placed on the carriage 2. By way of a rotary knob 17 arranged on the machine housing 11, the stop plate 12 can be adjusted parallel to the cutting plane defined by the cutting blade 11 in order to set the cutting thickness and thus the slice thickness of the separated food slices.

In der Figur 3 ist das MaschinengehƤuse 11 des SchrƤgschneiders aus Figur 2 in einer Schnittdarstellung gezeigt. In der Schnittdarstellung sind die vollstƤndig im Inneren des MaschinengehƤuses 11 angeordneten unterschiedlichen BaurƤume 21 zur Aufnahme einer SchlittenfĆ¼hrung, 31 zur Aufnahme eines Schlittenantriebs, und 41 zur Aufnahme einer Steuerelektronik gut zu erkennen. In dem Bauraum 21 zur Aufnahme einer SchlittenfĆ¼hrung ist eine FĆ¼hrung fĆ¼r die Schlitten-Gleitachse 25 angeordnet, welche die Schlitten-Gleitachse 25 mit dem MaschinengehƤuse verbindet und dadurch letztendlich den Schlitten 2 mechanisch stabil lagert.In the FIG. 3 is the machine housing 11 of the oblique cutter off FIG. 2 shown in a sectional view. In the sectional view, the completely arranged in the interior of the machine housing 11 different installation spaces 21 for receiving a carriage guide, 31 for receiving a carriage drive, and 41 for receiving control electronics are clearly visible. In the space 21 for receiving a carriage guide a guide for the slide-sliding axis 25 is arranged, which connects the carriage-sliding axis 25 with the machine housing and thereby ultimately the carriage 2 mechanically stable storage.

Ebenso ist aus der Darstellung in Figur 3 gut ersichtlich, dass das MaschinengehƤuse EntformungsschrƤgen A aufweist, um das MaschinengehƤuse gut aus einer Gussform lƶsen zu kƶnnen. Die EntformungsschrƤgen weisen einen Winkel im Bereich von 0.5Ā° bis 3Ā° auf.Similarly, from the illustration in FIG. 3 clearly visible that the machine housing has EntformungsschrƤgen A in order to solve the machine housing well out of a mold can. The EntformungsschrƤgen have an angle in the range of 0.5 Ā° to 3 Ā°.

Die Herstellung des MaschinengehƤuses 11 erfolgt durch Aluminium-Druckguss in einer entsprechenden Form. Als Legierung wird eine Aluminiumlegierung mit einem Siliziumanteil von mindestens 5% eingesetzt. Neben Aluminium und Silizium kann die Legierung noch weitere Metalle, insbesondere Kupfer, und/oder Eisen und/oder Magnesium und/oder Zinn enthalten. Zum GieƟen des GehƤuses wird die flĆ¼ssige Legierung in die vorgeheizte Form eingefĆ¼llt. Dann erfolgt Ć¼ber Stempel ein Druck auf die Legierung, der bis zum Erstarren gehalten wird. Durch den Druckguss entsteht ein MaschinengehƤuse mit einer hohen OberflƤchengĆ¼te. Die OberflƤche ist aber leider zu empfindlich, um den Anforderungen in der industriellen Lebensmittelverarbeitung gerecht zu werden.The production of the machine housing 11 is effected by die-cast aluminum in a corresponding form. The alloy used is an aluminum alloy with a silicon content of at least 5%. In addition to aluminum and silicon, the alloy may contain other metals, in particular copper, and / or iron and / or magnesium and / or tin. To cast the housing, the liquid alloy is poured into the preheated mold. Then, a stamp is applied to the alloy, which is held until it solidifies. Die casting creates a machine housing with a high surface quality. The surface is unfortunately too sensitive to the Requirements in industrial food processing.

AnschlieƟend wird das MaschinengehƤuse aus der Gussform gelƶst und nach dem AbkĆ¼hlen entgratet. AnschlieƟend erfolgt ein Gleitschleifen (Trowalieren) des MaschinengehƤuses, indem das MaschinengehƤuse zusammen mit Schleifkƶrpern in eine rotierende Trommel gegeben wird. Dabei erfolgt eine schonende OberflƤchenglƤttung des MaschinengehƤuses. Nach dem Trowalieren kƶnnen Gewindebohrungen in dem MaschinengehƤuse angebracht werden. AnschlieƟend wird das MaschinengehƤuse entfettet und dann getempert. Bei dem Tempern wird das MaschinengehƤuse eine gewisse Zeit Ć¼ber erwƤrmt, um mechanische Spannungen abzubauen und eventuell in dem Gussteil eingeschlossene Gase zu entfernen. Das Tempern erfolgt mit einer Temperatur. Die um mindestens 20Ā°C hƶher ist, als die hƶchste beim anschlieƟenden Beschichtungsprozess benƶtigte Temperatur.Subsequently, the machine housing is released from the mold and deburred after cooling. Subsequently, a tumbling (tumbling) of the machine housing by the machine housing is placed together with grinding bodies in a rotating drum. In this case, a gentle surface smoothing of the machine housing takes place. After tumbling, threaded holes can be made in the machine housing. Subsequently, the machine housing is degreased and then annealed. During annealing, the machine housing is heated for a certain time in order to reduce mechanical stresses and possibly to remove gases trapped in the casting. The tempering takes place at a temperature. Which is at least 20 Ā° C higher than the highest temperature required in the subsequent coating process.

Nach dem Tempern wird die OberflƤche des MaschinengehƤuses eventuell sandgestrahlt und dann mit einer Polymerbeschichtung versehen. Dazu wird eine flĆ¼ssige Beschichtung aufgetragen, die als Bestandteile eine Oxidkeramik, ein Bindemittel und als Polymer ein Teflon aufweist, um die nƶtigen Eigenschaften hinsichtlich mechanischer und chemischer WiderstandsfƤhigkeit, sowie Lebensmitteltauglichkeit zu erfĆ¼llen. Erst diese OberflƤchenbehandlung ermƶglicht es, das MaschinengehƤuse aus Aluminium-Druckguss in der industriellen Lebensmittel Herstellung einzusetzen. Die Trocknung der Beschichtung erfolgt dann in einem temperaturgefĆ¼hrten Prozess, wobei auf einem ersten niedrigeren Temperaturniveau Ć¼ber eine gewisse Zeit ein Trocknungsvorgang erfolgt. Dann wird nachfolgend auf einem hƶheren Temperaturniveau die Beschichtung eingebrannt, um dadurch die notwendige mechanische StabilitƤt der Beschichtung zu erhalten.After annealing, the surface of the machine housing may be sandblasted and then provided with a polymer coating. For this purpose, a liquid coating is applied, which has as constituents an oxide ceramic, a binder and as a polymer Teflon to meet the necessary properties in terms of mechanical and chemical resistance, as well as food suitability. Only this surface treatment makes it possible to use the machine housing made of die-cast aluminum in industrial food production. The drying of the coating is then carried out in a temperature-controlled process, wherein a first lower temperature level over a certain time a drying process takes place. Then, subsequently, the coating is baked at a higher temperature level, to thereby obtain the necessary mechanical stability of the coating.

Nach dem gleichen Herstellungsverfahren kƶnnen selbstverstƤndlich auƟer dem MaschinengehƤuse auch noch mehr Komponenten der Schneidemaschine hergestellt werden. Insbesondere kann die Anschlagplatte und/oder der Schlitten und/oder der SchlittenfuƟ und/oder ein Handschutz entsprechend hergestellt werden.Of course, in addition to the machine housing, even more components of the cutting machine can be produced by the same manufacturing method. In particular, the stop plate and / or the carriage and / or the SchlittenfuƟ and / or a hand guard can be made accordingly.

Claims (12)

Verfahren zur Herstellung einer industriellen Lebensmittelschneidemaschine mit einem einteiligen MaschinengehƤuse mit einer GehƤusebasis und einem einteilig an die Basis angeformten und von der Basis nach oben aufragenden Motorturm, der vorzugsweise zum Haltern eines Messerschutzrings ausgebildet ist, und in seinem inneren einen Bauraum zur Aufnahme eines Schneidmotors definiert, wobei das MaschinengehƤuse aus einer Aluminiumlegierung im Gussverfahren hergestellt wird,
dadurch gekennzeichnet,
dass das GehƤuse mit einem Druckgussverfahren aus einer Aluminiumlegierung mit mindestens 5% Siliziumanteil angefertigt und anschlieƟend eine GehƤuseoberflƤche mit einer polymerhaltige OberflƤchenbeschichtung versehen wird.Method for producing an industrial food cutting machine with a one-piece machine housing with a housing base and a motor tower integrally formed on the base and rising from the base, which is preferably designed to hold a knife protection ring, and defines in its interior a space for receiving a cutting motor, wherein the machine housing is made of an aluminum alloy by casting,
characterized,
that the housing is made with an aluminum alloy die casting process with at least 5% silicon content and then a housing surface is provided with a polymer-containing surface coating. Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Basis wƤhrend des Druckgussverfahrens so ausgeformt wird, dass sie in ihrem Inneren einen Bauraum zur Aufnahme einer SchlittenfĆ¼hrung umfasst.Method according to claim 1,
characterized,
that the base is formed during the die-casting process so that it comprises a space for receiving a carriage guide in its interior. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass die Basis wƤhrend des Druckgussverfahrens so ausgeformt wird, dass sie in ihrem Inneren einen Bauraum zur Aufnahme eines Schlittenantriebs umfasst.Method according to claim 1 or 2,
characterized,
that the base is formed during the die-casting process so that it comprises in its interior a space for receiving a carriage drive. Verfahren nach einem der AnsprĆ¼che 1 bis 3,
dadurch gekennzeichnet,
dass die Basis wƤhrend des Druckgussverfahrens so ausgeformt wird, dass sie in ihrem Inneren einen Bauraum zur Aufnahme einer Steuerelektronik umfasst.Method according to one of claims 1 to 3,
characterized,
that the base is formed during the die-casting process so that it includes a space in its interior for receiving control electronics. Verfahren nach einem der vorhergehenden AnsprĆ¼che,
dadurch gekennzeichnet,
dass die OberflƤche des MaschinengehƤuses nach dem Druckgussverfahren und vor dem Beschichten durch Gleitschleifen oder Trowalieren bearbeitet wird.Method according to one of the preceding claims,
characterized,
that the surface of the machine housing is machined by die casting and before coating by vibratory finishing or tumbling. Verfahren nach einem der vorhergehenden AnsprĆ¼che,
dadurch gekennzeichnet,
dass das MaschinengehƤuse nach dem Druckgussverfahren und vor dem Beschichten getempert wird.Method according to one of the preceding claims,
characterized,
that the machine housing is tempered after die casting and before coating. Verfahren nach Anspruch 6,
dadurch gekennzeichnet,
dass das Tempern bei einer Temperatur erfolgt, die um mindestens 20Ā°C hƶher ist, als die hƶchste beim Beschichten verwendete Temperatur.Method according to claim 6,
characterized,
that the annealing is carried out at a temperature which is higher by at least 20 Ā° C, as the highest temperature used during coating. Verfahren nach einem der vorhergehenden AnsprĆ¼che,
dadurch gekennzeichnet,
dass das MaschinengehƤuse mit zumindest einer EntformungsschrƤge kleiner 3Ā°, vorzugsweise im Bereich zwischen 3Ā° und 0,5Ā°, im Druckgussverfahren hergestellt wird.Method according to one of the preceding claims,
characterized,
that the machine housing is produced with at least one EntformungsschrƤge less than 3 Ā°, preferably in the range between 3 Ā° and 0.5 Ā°, in the die-casting process. Industrielle Lebensmittelschneidemaschine, zum Schneiden von strangfƶrmigen Lebensmitteln in Scheiben, hergestellt nach einem Verfahren der vorhergehenden AnsprĆ¼che,
dadurch gekennzeichnet,
dass ein rotierend angetriebenes Schneidmesser eine senkrecht verlaufende Schneidebene definiert.Industrial food slicer for slicing stranded foodstuffs prepared according to a method of the preceding claims,
characterized,
that a rotating driven cutting blade defines a vertical cutting plane. Industrielle Lebensmittelschneidemaschine, zum Schneiden von strangfƶrmigen Lebensmitteln in Scheiben, hergestellt nach einem Verfahren der AnsprĆ¼che 1 bis 8,
dadurch gekennzeichnet,
dass ein rotierend angetriebenes Schneidmesser eine gegen die Senkrechte um einen Winkel von mindestens 10 Grad gekippt verlaufende Schneidebene definiert.An industrial food slicer for slicing stranded foodstuffs prepared according to a method of claims 1 to 8,
characterized,
in that a rotary driven cutting blade defines a cutting plane which is tilted against the vertical at an angle of at least 10 degrees. Industrielle Lebensmittelschneidemaschine nach einem der AnsprĆ¼che 9 oder 10,
dadurch gekennzeichnet,
dass das MaschinengehƤuse (11) und eine Anschlagplatte (12) aus einer mit einer polymerhaltigen OberflƤchenbeschichtung versehenen Aluminiumlegierung mit mindestens 5% Siliziumanteil ausgebildet sind.Industrial food cutting machine according to one of claims 9 or 10,
characterized,
in that the machine housing (11) and a stop plate (12) are formed from an aluminum alloy provided with a polymer-containing surface coating with at least 5% silicon content. Industrielle Lebensmittelschneidemaschine nach einem der AnsprĆ¼che 9 bis 11,
dadurch gekennzeichnet,
dass der Schlitten (2) oder Teile des Schlittens (2), insbesondere eine Schlittenplatte (28) und/oder ein Handschutz (29) aus einer mit einer polymerhaltigen OberflƤchenbeschichtung versehenen Aluminiumlegierung mit mindestens 5% Siliziumanteil ausgebildet sind.Industrial food cutting machine according to one of claims 9 to 11,
characterized,
in that the carriage (2) or parts of the carriage (2), in particular a carriage plate (28) and / or a hand guard (29) are formed from an aluminum alloy provided with a polymer-containing surface coating with at least 5% silicon content.
EP12006763.2A 2011-10-08 2012-09-27 Method for manufacturing a food cutting machine Active EP2578369B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011115429A DE102011115429A1 (en) 2011-10-08 2011-10-08 Method of manufacturing a food slicer

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EP2578369A1 true EP2578369A1 (en) 2013-04-10
EP2578369B1 EP2578369B1 (en) 2020-06-17

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Cited By (2)

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CN105666566A (en) * 2016-03-31 2016-06-15 é•‡ę±Ÿåø‚äø–龙食品ęœŗę¢°ęœ‰é™å…¬åø Cutter mechanism in full-automatic food cat ear slicer
CN105666552A (en) * 2016-03-31 2016-06-15 é•‡ę±Ÿåø‚äø–龙食品ęœŗę¢°ęœ‰é™å…¬åø Full-automatic slicing machine for cat ear food

Families Citing this family (1)

* Cited by examiner, ā€  Cited by third party
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DE102020125586A1 (en) 2020-09-30 2022-03-31 Gebr. Graef GmbH & Co. Kommanditgesellschaft Food slicer

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