EP4126372A1 - Élément de coupe, ensemble d'éléments de coupe et hachoir à viande - Google Patents

Élément de coupe, ensemble d'éléments de coupe et hachoir à viande

Info

Publication number
EP4126372A1
EP4126372A1 EP21708641.2A EP21708641A EP4126372A1 EP 4126372 A1 EP4126372 A1 EP 4126372A1 EP 21708641 A EP21708641 A EP 21708641A EP 4126372 A1 EP4126372 A1 EP 4126372A1
Authority
EP
European Patent Office
Prior art keywords
knife
blade
meat grinder
knives
perforated disk
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.)
Pending
Application number
EP21708641.2A
Other languages
German (de)
English (en)
Inventor
Wolfgang Greiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Greiner Maschinenbau GmbH
Original Assignee
Greiner Maschinenbau GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Greiner Maschinenbau GmbH filed Critical Greiner Maschinenbau GmbH
Publication of EP4126372A1 publication Critical patent/EP4126372A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/30—Mincing machines with perforated discs and feeding worms
    • B02C18/36—Knives or perforated discs
    • B02C18/362—Knives

Definitions

  • the invention is based on a knife for a knife set of a meat grinder, in which the knife can be arranged rotatably about its own knife axis of rotation in the knife set, the knife having at least one blade.
  • Such a knife is known from DE 10 2012 108 245 A1.
  • the object of the present invention is to provide a generic knife, a knife set with a generic knife, and a meat grinder with such a knife set, which allow particularly energy-saving grinding of a material to be cut.
  • a knife for a knife set of a meat grinder in which the knife can be arranged rotatably about its own knife rotation axis in the knife set, the knife having at least one blade, the knife having a drive element which is designed independently of its blade and which is set up to rotate the knife around its knife axis of rotation when the meat grinder is in operation.
  • the invention is thus based on the idea of driving the knife by means of the drive element and, in particular, of rotating the knife about its axis of rotation of the knife.
  • the knife can thus cut and / or comminute material to be minced directly, in particular independently of a perforated disk.
  • the knife does not need to be pressed against the perforated disc of the knife set for shredding. Friction losses can be reduced by rubbing the knife on the perforated disc. This means that the material to be cut can be minced in an energy-saving manner.
  • the drive element is designed to be independent of the blade, the drive of the knife can also be optimized independently of the design of the blade.
  • the knife can be driven even with a small influx and / or independently of the influx of the material to be cut.
  • the material to be cut can also be comminuted and / or cut by the blade of the knife without interference from the drive element.
  • the knife can shred and / or cut special components of the meat mass such as cartilage or tendons. This means that there is no need for a replacement replacement for separating cartilage, tendons or the like, which is connected downstream of the knife replacement.
  • a worn blade can also be replaced independently of the drive element, so that the amount of waste is reduced. This also saves costs on consumables.
  • the drive element has a gearwheel and / or is designed as such.
  • the knife can thus be driven directly and / or indirectly by means of a toothed counter element, for example a toothed ring, a further toothed wheel and / or a toothed rack, in particular without slipping.
  • the drive element has an impeller and / or is designed as such, wherein the impeller can be driven by an item to be cut when the meat grinder is in operation.
  • the material to be cut can in particular be a meat mass to be processed in a meat grinder.
  • Such a drive element makes it possible to drive the knife through the material to be cut moving through the meat grinder.
  • the impeller can preferably have at least one blade. It can be designed like a turbine blade.
  • the knife can be made of iron, preferably soft iron, and / or have iron, preferably soft iron. If a part of the knife set into which the knife is to be recorded is magnetic, for example permanently magnetic, the knife can be magnetized at least temporarily as soon as it comes into the closer range of action of the magnetization. It can thereby be automatically positioned and / or held in the knife set.
  • the use of iron is also advantageous for reasons of cost and for reasons of food hygiene, in particular with regard to abrasion.
  • the maintenance effort can be reduced if the blade of the knife is self-sharpening.
  • the blade can be made of a softer material than, for example, a perforated disk of the knife set in which the knife is to be used, and / or can have such a material.
  • a cutting edge of the blade can have a cutting angle in the range from 91 ° to 120 °, preferably in the range from 115 ° and 118 °.
  • the cutting angle can be measured as the outer angle of the cutting edge to a cutting plane of the blade.
  • the blade in particular the cutting edge, can also have a corrugation.
  • the blade, in particular the cutting edge can be smooth.
  • a knife set for a meat grinder comprising at least one perforated disk and at least one knife according to the invention, also falls within the scope of the invention.
  • the set of knives can preferably have at least three knives. Since the drive of the at least one knife of such a knife set can take place with significantly reduced friction losses, the knife set according to the invention enables energy-saving grinding of the material to be cut.
  • the abrasion produced when operating a meat grinder can also be reduced. In this way, both energy efficiency and food hygiene aspects can be improved. By reducing the abrasion, the service life of the knife, the perforated disc and thus the entire set of knives can also be extended.
  • the knife set comprises several knives, then these can be arranged in the knife set in the manner of a planetary gear, in particular distributed in a star shape. This also enables a driven knife to drive another knife.
  • the at least one knife can be accommodated in a knife holder of the knife set.
  • the position and / or the location of the received knife relative to at least one other element of the knife set can be determined by the knife holder.
  • several knives of the knife set can be positioned relative to one another.
  • all knives that are arranged on one and the same side of the perforated disk, in particular adjacent to this perforated disk with their blades, can be accommodated in the same knife holder.
  • the at least one knife can in particular be accommodated in the knife holder with a play. Unevenness of the perforated disk assigned to the knife can be automatically compensated for during operation of the meat grinder by the play.
  • the knife set has a toothed wheel
  • the ring gear can then be set up to drive the knife directly and / or indirectly via its gear wheel.
  • the ring gear can rotate about its central axis in order to drive the gearwheel, in particular to rotate the knife around its knife axis of rotation.
  • the knife is displaced within the knife set.
  • the knife holder and with it a knife received in it can rotate about a central axis of the knife set.
  • the knife holder can be driven by means of a screw of a meat grinder in which the knife set is received.
  • Such a movement of the knife in particular the rotation around the central axis, allows the knife gearwheel to roll off the toothed rim, so that the knife in turn rotates around its knife axis of rotation.
  • the toothed ring can be coupled to the perforated disk, in particular non-rotatably, and / or formed on the perforated disk.
  • the perforated disk and the ring gear can have a groove.
  • a blocking pin can then be inserted into the groove, by means of which a rotation of the toothed ring relative to the perforated disk is blocked. If the ring gear is formed on the perforated disk, the
  • Perforated disk and the ring gear as a whole form a one-piece element.
  • the toothed ring is not coupled to the perforated disk or at least not coupled to the perforated disk in a rotationally fixed manner.
  • the set of knives has a spacer ring which is preferably set up to accommodate the blade of the at least one knife. The blade can then be accommodated in the interior of the spacer ring. If the perforated disk or another perforated disk adjoins the spacer ring, the cutting edge of the blade can slide along an upper side of the perforated disk in question, in particular at a slight distance from the perforated disk.
  • the spacer ring can also have a groove, in particular for blocking rotation relative to the perforated disk in conjunction with a blocking pin inserted into the groove.
  • the spacer ring can be designed as an open ring. In the case of such a spacer ring, the blocking pin can be arranged between the free ring ends, that is to say in the region of the opening of the spacer ring.
  • the knife set has at least two knives according to the invention, so that the cutting performance can be improved and any imbalances can be reduced or even avoided.
  • the knife set has 3, 4, 8 or 16 knives are also particularly preferred.
  • the plurality of knives are preferably arranged distributed uniformly along a circle around the central axis of the knife set.
  • the at least two knives are particularly preferably arranged on opposite sides of the perforated disk. It is particularly conceivable that a knife with an impeller is arranged on one side of the perforated disk, in particular on the side to which the material to be minced is fed. On the opposite side of the perforated disc, i.e. on the side of the Perforated disc, towards which the material to be cut leaves the perforated disc, a knife with a gear wheel as a drive element can be arranged.
  • the knife set has at least two perforated disks.
  • the perforated disks can have holes of different sizes. This makes it possible to shred the material to be minced in stages with different degrees of fineness.
  • a meat grinder with a knife set according to the invention also falls within the scope of the invention.
  • Such a meat grinder can be operated in a particularly energy-saving manner.
  • the meat grinder also enables particularly fine and / or uniform processing of the material to be minced.
  • the meat grinder preferably has several sets of knives. These can be arranged one behind the other so that the material to be cut can be shredded and / or cut in several degrees of fineness one after the other.
  • the meat grinder can be designed to be particularly compact if the at least one perforated disk is arranged in a housing of the meat grinder, in particular non-rotatably. In particular, everyone can
  • Perforated disks can be arranged in the same housing, in particular non-rotatably.
  • the set of knives or the sets of knives as a whole can also be accommodated and / or accommodated in the housing.
  • the diameter of the at least one perforated disk, the toothed ring, the knife holder, the spacer ring and / or the housing can preferably be between 70 mm and 400 mm.
  • the knife, the perforated disk, the ring gear, the spacer ring, the knife holder and / or the knife set as a whole can be one Coating, in particular a Teflon coating. With such a coating, food hygiene requirements can be met in a simple manner.
  • the coating can particularly preferably be applied to a sliding surface of the knife and / or the perforated disk.
  • a use of the knife set according to the invention for the production of salami and / or mortadella also falls within the scope of the invention.
  • the production of the meat products in question can also be simplified, since separate separation of special components of the product to be cut, such as tendons, cartilage or the like, can be dispensed with.
  • FIG. 1 shows a schematic view of a set of knives in a perspective illustration
  • Fig. 4 is a perspective, partially exploded view of the
  • Knife set with a changed position of knives of the knife set
  • FIG. 5 shows a plan view of the knife set with the knife position according to FIG. 4;
  • FIG. 6 shows a sectional view of the knife set with the knife position according to FIG. 4;
  • FIG. 8 shows a sectional view of the knife set according to FIG. 7;
  • FIG. 9 is a side view of a blade of a knife
  • FIGS. 10 and 11 shows a sectional view of the knife set according to FIGS. 10 and
  • 12 is a schematic representation of a meat grinder.
  • Fig. 1 shows a knife set 10 of a meat grinder in a perspective view.
  • the knife set 10 has two perforated disks, of which only one perforated disk 12 is shown for reasons of illustration.
  • the perforated disks each have a plurality of through openings, preferably evenly distributed over the base area of the respective perforated disk.
  • the knife set 10 also has knives 14, 16, 18. According to the illustration in FIG. 1, the knives 14, 16, 18 are arranged above the perforated disk 12.
  • the knife set 10 also has further knives which are arranged below the perforated disk 12, in particular adjacent to it, but which are not shown for reasons of simplification and illustration.
  • the knives are held in a knife holder 20.
  • the knives 14, 16, 18 are arranged uniformly distributed over the perforated disk 12 by means of the knife holder 20.
  • the knife holder 20 is designed essentially in the shape of a star.
  • the knives 14, 16, 18 each have a blade 22, 24, 26 and a gear 28, 30, 32 each.
  • the gears 28, 30, 32 mesh with a ring gear 34, which preferably has teeth pointing inward.
  • the toothed ring 34 is seated on the perforated disk 12. If the knife holder 20 is thus rotated about the central axis Z of the knife holder 10, the gear wheels 28, 30, 32 roll on the toothed ring 34.
  • Fig. 2 shows the knife set 10 in a plan view.
  • Fig. 3 shows a
  • Sectional view of the knife set 10 according to the section line III of FIG. 2.
  • FIG. 1 it can be seen in the knife 14 that its blade 22 is held on the gear 28 by a magnet 36.
  • the blade 22 and the gear 28 are made of iron. They are therefore ferromagnetic.
  • a preferably small, but not negligible, gap can be formed between the blade 22 and the gear wheel 28, to compensate for unevenness of a perforated disk on which the blade 22 can slide during its use in a meat grinder.
  • FIG. 4 shows a partially exploded, perspective illustration of the knife set 10. Compared to the illustration according to FIG. 1, the position of the knives 14, 16, 18 and the knife holder 20 is slightly changed, see above that in the comparison of the two figures, the rotatability of the knives 14, 16, 18 within the ring gear 34 can be seen.
  • a hexagonal structure 38 is marked with a reference symbol on the knife 14, in particular on its blade 22.
  • the associated gear 28 has a hexagon socket 40.
  • the blade 22 is thus non-rotatably arranged on the gear 28 by means of the hexagonal structure 38 and the hexagon socket 40.
  • FIG. 5 shows a plan view of the knife set 10 with the position of the knives 14, 16, 18 or of the knife holder 20 according to FIG. 4.
  • FIG. 6 shows a partially exploded sectional view according to the section line VI of FIG. 5, in which a recess 42 of the gear 28 can be seen.
  • the magnet 36 is seated in this recess in order to hold the blade 22 on the toothed wheel 28.
  • FIG. 8 shows a sectional view corresponding to the section line VIII in FIG. 7.
  • a special feature of this embodiment is that a knife 44 has, in addition to a blade 46, an impeller 48, preferably instead of the previously described gear wheels 28, 30, 32 (FIG. 1).
  • the impeller 48 has a plurality of blades, one of which is marked with a reference number.
  • the impeller 48 represents a drive element of the knife 44 which is independent of the blade 44 and which is set up to rotate the knife 44 about its knife axis of rotation R 'when a meat grinder in which the knife set 10' is used.
  • the impeller 48 is designed in such a way that a material to be sliced, for example a meat mass to be minced, flowing in from above as shown in FIG. 8, i.e. in the direction of the arrows shown in FIG. 8, grips the blades of the impeller 48 and thus the impeller 48 drives.
  • the impeller 48 is non-rotatably connected to the blade 46, so that ultimately the knife 44 is driven as a whole by the rotating impeller 48 and in particular rotates about its knife axis of rotation R '.
  • the knife set 10 ′ has a further knife 51.
  • the knife 51 can correspond to one of the knives 14, 16, 18 described above.
  • the knives 44, 51 are arranged on the two opposite sides of a perforated disk 52.
  • the blade 46 of the knife 44 is arranged adjacent to the perforated disk 52. In particular, it can slide over the perforated disk 52.
  • FIG. 9 shows a side view of a blade 53 of a knife for a knife set of a meat grinder.
  • the blade 53 can be one of the blades 22, 24, 26 (FIG. 1) and / or 46 (FIG. 8) of the preceding ones
  • Embodiments correspond.
  • the cutting angle alpha corresponds to the outer angle of a cutting edge 54 of the blade 52 in relation to its cutting plane 56.
  • the cutting angle alpha is 118 °.
  • the cutting angle alpha preferably has a value in the range from 91 ° to 120 °.
  • the blade 53 is formed from a soft iron.
  • the soft iron has a lower hardness than a perforated disk, for example one of the perforated disks 12 (FIG. 1), 52 (FIG. 8) shown above, with which the blade 53 cooperates and / or is intended to cooperate.
  • a knife equipped with this blade 53 is self-sharpening.
  • FIG. 10 shows a further set of knives 10 ′′ in a perspective, partially exploded illustration.
  • the knife set 10 ′′ has a spacer ring 58.
  • the spacer ring 58 is seated on a toothed ring 60.
  • the toothed ring 60 is in turn seated on a perforated disk 70.
  • the spacer ring is designed to receive a blade 74 of a knife 72.
  • its height essentially corresponds to the height of the blade 74.
  • the spacer ring 58 is designed as an open ring.
  • the ring gear 60 and the perforated disk 70 each have a groove, of which - for reasons of illustration - only one groove 75 of the ring gear 60 can be seen.
  • a spacer ring corresponding to the spacer ring 58 is also provided in the knife sets 10, 10 'of the preceding exemplary embodiments, but is not shown in the previously described figures merely for reasons of illustration.
  • the knife set 10 ′′ also has a knife holder which, at least essentially, corresponds to the knife holder 20 (FIG. 1) described above and is merely not shown in FIG. 10.
  • Knickets 10 (Fig. 1), 10 '(Fig. 7), 10 "can also each have two perforated disks, even if two perforated disks are not always shown in the preceding figures.
  • a knife set 10"' in which two Perforated disks 76 and 78 are shown, shows the sectional view according to FIG. 11.
  • a toothed ring 80 and a spacer ring 81 are arranged between the two perforated disks 76 and 78, which are preferably arranged parallel to one another.
  • the ring gear 80 and the spacer ring 81 can essentially correspond to the corresponding elements described above.
  • a knife 82 with a blade 84 is arranged on the knife holder.
  • the blade 84 points towards the perforated disk 78 on the cutting edge. It can slide along the perforated disk 78
  • Perforated disk 78 can have a small, but not negligible, gap.
  • the blade 84 has a relief surface 86 designed as a recess.
  • FIG. 12 shows a meat grinder 100 with two knife sets 110, 110 'arranged one behind the other, which one or two of the previously described knife sets 10 (FIG. 1), 10' (FIG. 7), 10 "(FIG. 10) and / or 10 "'(FIG. 11), in particular at least substantially.
  • the knife sets 110, 110 ' are supplied with material to be minced, in particular with meat mass to be minced, by means of a worm 112.
  • the worm 112 drives the knife sets 110, 110 'with their respective knives via respective knife holders (also not shown) equipped with knives (not shown in FIG. 12).
  • the meat grinder has a housing 114.
  • the two sets of blades 110, 110 ′ are arranged in the housing 114, with their perforated disks (not shown in FIG. 12) preferably being arranged on the housing 114 in a rotationally fixed manner.

Landscapes

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

Abstract

L'invention concerne un élément de coupe (14, 16, 18, 44, 51, 72, 82) pour un ensemble d'éléments de coupe (10, 10', 10'', 10''', 110, 110') d'un hachoir à viande (100) dans lequel l'élément de coupe (14, 16, 18, 44, 51, 72, 82) peut être disposé de manière à pouvoir tourner autour de son propre axe de rotation d'élément de coupe (R, R') dans l'ensemble d'éléments de coupe (10, 10', 10'', 10''', 110, 110'), l'élément de coupe (14, 16, 18, 44, 51, 72, 82) ayant au moins une lame (22, 24, 26, 46, 53, 74, 84). L'invention est caractérisée en ce que l'élément de coupe (14, 16, 18, 44, 51, 72, 82) comprend un élément d'entraînement formé indépendamment de sa lame (22, 24, 26, 46, 53, 74, 84), ledit élément d'entraînement étant conçu pour faire tourner l'élément de coupe (14, 16, 18, 44, 51, 72, 82) autour de son axe de rotation d'élément de coupe (R, R') pendant le fonctionnement du hachoir à viande (100). L'invention concerne également un ensemble d'éléments de coupe et un hachoir à viande. L'invention permet d'améliorer l'efficacité énergétique du hachoir à viande.
EP21708641.2A 2020-03-26 2021-02-26 Élément de coupe, ensemble d'éléments de coupe et hachoir à viande Pending EP4126372A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020108424.2A DE102020108424A1 (de) 2020-03-26 2020-03-26 Messer, Messersatz und Fleischwolf
PCT/EP2021/054884 WO2021190858A1 (fr) 2020-03-26 2021-02-26 Élément de coupe, ensemble d'éléments de coupe et hachoir à viande

Publications (1)

Publication Number Publication Date
EP4126372A1 true EP4126372A1 (fr) 2023-02-08

Family

ID=74797947

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21708641.2A Pending EP4126372A1 (fr) 2020-03-26 2021-02-26 Élément de coupe, ensemble d'éléments de coupe et hachoir à viande

Country Status (3)

Country Link
EP (1) EP4126372A1 (fr)
DE (1) DE102020108424A1 (fr)
WO (1) WO2021190858A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1889381A (en) * 1930-10-21 1932-11-29 William R Rush Food chopper
DE577208C (de) 1931-11-22 1933-05-26 August Storck Messerkopf fuer Fleischwoelfe
DE102008019812A1 (de) 2008-04-19 2009-10-22 Turbocut Jopp Gmbh Wolfmesser mit eingesetzten Klingen
DE102012108245A1 (de) 2012-09-05 2014-03-06 Heinrich Gmbh Messersatz für einen Fleischwolf

Also Published As

Publication number Publication date
DE102020108424A1 (de) 2021-09-30
WO2021190858A1 (fr) 2021-09-30

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