EP2311568B1 - Ensemble de coupe doté d'un compteur de bague d'écartement de sécurité - Google Patents

Ensemble de coupe doté d'un compteur de bague d'écartement de sécurité Download PDF

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Publication number
EP2311568B1
EP2311568B1 EP20100013729 EP10013729A EP2311568B1 EP 2311568 B1 EP2311568 B1 EP 2311568B1 EP 20100013729 EP20100013729 EP 20100013729 EP 10013729 A EP10013729 A EP 10013729A EP 2311568 B1 EP2311568 B1 EP 2311568B1
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EP
European Patent Office
Prior art keywords
ring
blade
cutting
accordance
pairing
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.)
Active
Application number
EP20100013729
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German (de)
English (en)
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EP2311568A1 (fr
Inventor
Oliver Haack
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.)
Power Tools GmbH
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Power Tools GmbH
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Publication date
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Publication of EP2311568A1 publication Critical patent/EP2311568A1/fr
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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 present invention relates to a cutting set with at least one respective at least one perforated disc associated ring cutter, in particular for use in cutting systems of machines for crushing raw materials of natural origin, preferably in meat grinders or the like, wherein the closed outer ring of the ring diameter is assigned a spacer ring, which serves as a spacer defines a knife protection space between adjacent perforated disks or as a perforated disk replacement support ring surface, in which the ring knife cooperates with at least one stationary perforated disk.
  • a cutting set of this kind is made DE 20 2007 003 777 U1 known.
  • the spacer ring has after production a so-called zero tolerance measure between spacer ring width and the width of the measured over the blade height ring cutter body.
  • This spacer ring is used to clamp the tools with an override nut in the housing. Since the tools must be ground during operation, the distances to the housing end change, and these distance changes are bridged with the spacer ring.
  • a ring knife with spacer ring for crushing animal raw materials which consists of an arrangement of a ring knife and an associated spacer, ring diameter and spacer are arranged to each other, that both parts form a common shelter for a simple knife cutting system, easily from each other are releasable and thereby supporting of the knife on the spacer ring is possible.
  • the provided here radially outer support of the knife on the spacer ring does not prevent that it comes due to knife wear to an undesirable gap formation between the blade and perforated disc surface.
  • a ring knife for meat grinders in which the continuous cutter bar with a groove and the outer ring are provided on its inside with a bead.
  • the knife bars are firmly connected to the hub and outer collar of the knife.
  • the outer collar has a peripheral circumferential groove and is operatively connected to an outer ring acting as a spacer ring, wherein the outer ring on the circumference distributed locking pins are assigned, which engage in the groove.
  • the spacer ring forms a shelter for the replaceable blades against the perforated disc and product prints.
  • a ring knife for mincers which has an outer collar, which has a circumferential circumferential groove and is in operative connection with an outer ring.
  • the outer ring is associated with a spacer ring, which consists of a plastically elastic material, which largely compensates occurring disc thrust forces and allows Nullrichtoleranznach too while having different cross-sectional shapes and is provided with bevels and deformation grooves.
  • the knife should absorb the thrust elastic in the cutting planes and allow it in conjunction with a limited deformable shelter to make the knife adjustable.
  • the object of the invention is to design cutting sets of the type specified constructively so that cutting losses are minimized by blade abrasion and the intervals between required Neuschliffen be increased by a multiple.
  • the amounts of work between required Neuschliffen can be significantly increased, and in particular in the case of the use of fine perforated discs in connection with the processing of soft raw material fractions and connective tissues.
  • an inner support ring adjacent to the hub region may be provided on the ring knife, which cooperates with the surface of the perforated disc located downstream of the product flow through the cutting set and / or support body regions on the knife blades and / or on the knife carriers be formed in the form of surface support elements, which in turn interact with the adjacent perforated disc.
  • the knife blades associated support surfaces are as surface support elements in the range of about half the span of the blades between hub and outer ring either mounted on the blade body and / or non-cutting integrated into the respective blade.
  • a preferred embodiment of this solution is characterized in that the following in its cross section of the ring blade outer contour and preferably L-shaped spacer ring engages via guide and coupling elements in an outer annular groove of the ring blade and is supported on a downstream knife ring shoulder, the knife ring shoulder and the their associated surface of the spacer ring is designed as wear effect pairing for blade adjustment.
  • the annular shoulder of the spacer ring and the correspondingly adapted support ring with axial support surface on the ring knife take on a double function, namely on the one hand, the reduction of the cutting loss by supporting and bearing action against the free displacement of the blade in the direction of the free perforated disc surface and on the other hand, a positioning function for cutting addition own thickness or material loss due to surface friction in the ring pairing area.
  • the Ring lakeabrieb for Schneidenzu ein is preferably determined by two material types tempered in the required manner as friction pairing and the geometry and dimensions of the support surfaces. This makes it possible to extend the useful life of the cutting edge difference height by micro-delivery and to produce its own cutting edge sharpness through minor surface friction between blades and perforated disc again and again.
  • a particularly effective and effective in practice effect of the solution according to the invention further consists in that, due to the achieved cutting adjustment in the direction of the downstream perforated disc, the distance between the front of the knife perforated disc and the knife increases accordingly and thus the cutting gap to this rear perforated disc is increased, but because in the cutting part combinations the perforated discs in size staggered combined with knives are, has the rear or inflow side perforated disc larger holes, which allow for the cutting between the blade and this perforated disc a larger cutting gap.
  • the cutting conditions are secured both to the perforated disc with smaller holes and the perforated disc with larger holes within the cutting set.
  • the invention can be arranged between the knife ring shoulder and spacer ring, an intermediate ring which forms a wear effect pairing at least with one of the two surfaces adjacent to it.
  • the preferably designed as an L-ring spacer ring can be arranged with associated, enclosed by him ring cutter in front of a pre-cutter or a precutter and forms in the overall structure of a cutting set in this case instead of a perforated plate the corresponding Optimizstützring Structure and thereby guarantees the effect of a knife protection space.
  • the ring cutter according to the invention may also be composed of two half blade bodies or a plurality of blade bodies, so that partial ring blade elements are present, which are axially adjustable relative to each other, so that a ring blade is obtained with variable axial dimensions.
  • Fig. 1 shows a known in its basic structure ring knife 1, which has a closed outer ring 3, wherein between this outer ring 3 and a hub portion 6 blade carrier body 16 extend.
  • knife 11 or knife 11 carrying knife bodies are provided which extend from the outer ring 3 only over a portion of the total radius, ie that their free ends with respect to the hub portion 6 have a distance.
  • Such knives may also be referred to as hanging knives, while the knives extending between hub portion 6 and outer ring 3 may be referred to as continuous or upright knives.
  • the provided on the knife carriers knife 11, 12 cooperate with both sides of the ring knife 1 adjacent perforated discs in a cutting set, usually located in the product flow direction in front of the ring diameter perforated disc has larger holes than the following in the product flow direction on the ring blade 1 perforated disc. But this is not necessarily an existing requirement.
  • the ring knife 1 has on its outer circumference a circumferential outer annular groove 8, which is intended to receive guide and coupling elements 15, which in an in Fig. 2 shown spacer ring 2 are fixed and couple this spacer ring 2 with the ring knife 1.
  • the knife blades are pressed or pressed by feedstock against the respective perforated disc surface, causing wear and resulting from the already described cutting gap formation occurs.
  • Perforated discs also have the property to deform by the product pressure and relax after penetration of the substance into the holes. With this they swing back swinging and usually hit the center of the blade of the rotating knife. As a result, the cutting edges of the blades wash out and no longer participate in the cutting process due to partial gap formation.
  • a first support surface pairing is realized in the region of the outer ring 3 of the ring blade 1, by the interaction of the adjacent to the outer support ring 7 support surface 4 with the adapted counter-support surface 5 on the cross-sectionally L-shaped spacer ring. 2
  • the annular blade 1 has, adjacent to the hub region 6, an inner support ring 9 which cooperates with the associated perforated disc or bears against the perforated disc surface.
  • surface support elements 10 cooperating with the corresponding perforated disc are also provided either on the knife carrier bodies 16 and preferably directly on the knives 12. These surface support elements are non-intersecting integrated into the respective blade 11, that is arranged rearwardly with respect to the cutting blade front side and designed, for example, semicircular or part-circular.
  • the Fig. 2 shows a spacer ring 2, wherein in the illustrated plan view, the support surface 5 can be seen, from the inside of the in Fig. 3 to be seen L-shaped leg 13 of the spacer ring 2 is formed.
  • the spacer ring 2 has offset over its circumference bores 14 which serve to fix guide and coupling elements 15 which engage in the outer ring groove 8 of the ring blade 1 and connect these two components together so that the ring knife 1 - preferably on the same drive as it is provided for the screw conveyor - can be driven, wherein the spacer ring 2 is fixed and secured in position between adjacent perforated discs clamped.
  • the Fig. 3 shows the already described facts of the coupling of the spacer ring 2 with the same axial dimensions having ring knife. 1
  • the 4 and 5 show a further embodiment of the combination of ring knife 1 and spacer 2, which is designed so that an automatic cutting adjustment with simultaneous cutting edge sharpening is obtained.
  • spacer ring 2 and the body of the ring knife 1 have the same width and the stationary spacer ring 2 defines the knife protection space for the rotating ring knife 1.
  • fixed guide and coupling elements engage in particular centering and substantially positive locking while ensuring the rotation in the outer annular groove 8 of the ring knife 1 a.
  • FIG. 1 An analogous to the embodiment according to Fig. 1 provided support ring 7 with support surface 4 receives the L-leg 13 of the spacer ring 2, so that there is a ring pairing area between the support surface 4 and the opposite ring surface of the L-leg 13 of the spacer ring 2 for the attacking axial forces.
  • this ring pairing area formed by these surfaces is subject to wear, which can be predetermined in particular by the choice of material, and which is calculated in such a way that the unavoidable blade wear on the fine perforated disk is compensated.
  • the micro-feed realized with this ensures, on the one hand, that over a long period of time safe cutting conditions between the ring knife and the outflow-side perforated disc can be guaranteed, and secondly because of the always given low surface friction between blades and perforated disc a cutting edge resharpening takes place.

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

Claims (15)

  1. Ensemble de coupe comprenant au moins un couteau annulaire (1) associé respectivement à au moins une plaque à trous, en particulier pour l'emploi dans des systèmes de coupe de machines destinées à fragmenter des matières premières d'origine naturelle, de préférence dans des hachoirs à viande ou similaires,
    dans lequel une bague d'écartement (2) est associée à la bague extérieure fermée (3) du couteau annulaire (1), bague qui, à titre d'élément d'écartement entre des plaques à trous voisines ou à titre de surface annulaire de soutien en remplacement de plaque à trous, définit un espace de protection de couteau dans lequel tourne le couteau annulaire (1) en coopérant avec au moins une plaque à trous stationnaire,
    caractérisé en ce que
    en supplément à au moins une paire de premières surfaces de soutien (4, 5) prévue entre la bague d'écartement (2) et la bague extérieure (3) et encaissant des forces axiales, soit il est prévu au moins une autre paire de surfaces de soutien entre des zones radialement intérieures du couteau annulaire (1) et une plaque à trou adjacente, soit la paire de surfaces (4, 5) efficace pour encaisser des forces axiales entre la bague extérieure (3) du couteau annulaire et la bague d'écartement (2) est réalisée sous forme de paire à effet d'usure pour le réajustement des lames.
  2. Ensemble de coupe selon la revendication 1,
    caractérisé en ce qu'il est prévu, à titre d'autre paire de surfaces de soutien, une bague de soutien intérieure (9), voisine de la zone de moyeu (6), sur le couteau annulaire (1), laquelle coopère avec la surface d'une plaque à trou adjacente.
  3. Ensemble de coupe selon la revendication 1 ou 2,
    caractérisé en ce que des zones formant corps de soutien, coopérant avec la plaque à trous adjacente entre la paire de surfaces de soutien radialement intérieures voisines de la zone de moyeu (6) et la paire de surfaces de soutien radialement extérieures, mais ne participant pas au processus de coupe, sous la forme d'élément de soutien surfaciques (10), sont conformées sur la lame de couteau (12) et/ou sur le corps de porte-couteau (16).
  4. Ensemble de coupe selon l'une des revendications précédentes,
    caractérisé en ce qu'au moins les plans d'action, des autres paires de surfaces de soutien, situés radialement à l'intérieur de la paire de surfaces de soutien (4, 5) prévues entre la bague d'écartement (2) et le couteau annulaire (1), sont situés dans le même plan.
  5. Ensemble de coupe selon l'une des revendications précédentes,
    caractérisé en ce que les surfaces de soutien associées aux lames de couteau (12) sont agencées de manière intégrée à titre d'éléments de soutien surfaciques (10) dans la plage d'approximativement la moitié de l'envergure des lames entre la zone de moyeu (6) et la bague extérieure (3) sur le corps de base (16) du couteau et/ou dans la lame respective (11), sans présenter d'effet de coupe.
  6. Ensemble de coupe selon la revendication 5,
    caractérisé en ce que les éléments de soutien surfaciques (16) sont conformés sur la région postérieure traînée des lames, et sont de préférence conçus sous forme circulaire partielle ou sous forme de demi-cercle.
  7. Ensemble de coupe selon la revendication 1,
    caractérisé en ce que la bague d'écartement (2) réalisée avec une section transversale qui suit le contour extérieur du couteau annulaire et de préférence en forme de L, s'engage via des éléments de guidage et d'accouplement (15) dans une gorge annulaire extérieure (8) du couteau annulaire (1) et est soutenu sur un épaulement annulaire (4) du couteau situé du côté avale, et l'épaulement annulaire (4) du couteau et la surface qui lui est associée de la bague d'écartement (2) sont réalisés sous forme de père à effet d'usure pour le réajustement des lames.
  8. Ensemble de coupe selon la revendication 7,
    caractérisé en ce que, entre l'épaulement annulaire (4) du couteau et la bague d'écartement (2) est agencée une bague intermédiaire qui, au moins avec l'une des deux surfaces qui lui sont adjacentes, forme une paire à effet d'usure.
  9. Ensemble de coupe selon l'une des revendications précédentes,
    caractérisé en ce que les paires à effet d'usure prévues pour le réajustement des lames sont réalisées avec des sortes de matériaux de qualité.
  10. Ensemble de coupe selon l'une des revendications 7 à 9,
    caractérisé en ce que des interruptions dans les surfaces d'usure sont prévues en se répétant sur la périphérie dans les paires de surfaces d'usure.
  11. Ensemble de coupe selon la revendication 1,
    caractérisé en ce qu'une paire à effet d'usure destinée au réajustement des lames est formée par la paroi située du côté afflux de la gorge annulaire extérieure (18) du couteau annulaire (1) et par des éléments de guidage et d'accouplement (15), qui s'engagent dans cette gorge annulaire extérieure (8) et sont fixés dans la bague d'écartement (2), et qui sont ajustés dans la zone d'engagement à la forme de section transversale de la gorge périphérique (8).
  12. Ensemble de coupe selon la revendication 11,
    caractérisé en ce que les éléments de guidage et d'accouplement (15) possèdent un effet de centrage, et présentent en particulier une forme en tronc de cône.
  13. Ensemble de coupe selon l'une ou plusieurs des revendications précédentes,
    caractérisé en ce que le couteau annulaire (1) est constitué d'au moins deux éléments partiels de couteau annulaire coaxiaux et parallèles l'un à l'autre, avec une distance mutuelle prédéterminée.
  14. Ensemble de coupe selon la revendication 13,
    caractérisé en ce que la distance axiale des éléments partiels de couteau annulaire est réglable indépendamment de la position de la bague d'écartement (13) reliée à un élément partiel de couteau annulaire.
  15. Ensemble de coupe selon la revendication 13,
    caractérisé en ce qu'une bague d'écartement partielle est associée au moins à chaque élément partiel de couteau annulaire situé à l'extérieur.
EP20100013729 2009-10-19 2010-10-18 Ensemble de coupe doté d'un compteur de bague d'écartement de sécurité Active EP2311568B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009049844A DE102009049844A1 (de) 2009-10-19 2009-10-19 Schneidsatz mit Sicherheitsdistanzringmesser

Publications (2)

Publication Number Publication Date
EP2311568A1 EP2311568A1 (fr) 2011-04-20
EP2311568B1 true EP2311568B1 (fr) 2013-08-21

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EP20100013729 Active EP2311568B1 (fr) 2009-10-19 2010-10-18 Ensemble de coupe doté d'un compteur de bague d'écartement de sécurité

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EP (1) EP2311568B1 (fr)
DE (1) DE102009049844A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202016103109U1 (de) * 2016-05-03 2017-08-07 Lumbeck & Wolter Gmbh & Co. Kg Schneideinrichtung, insbesondere für Fleischwölfe
DE102017109978B4 (de) * 2017-05-09 2021-06-24 Turbocut Jopp Gmbh Messer für Fleischwölfe
DE202020103763U1 (de) 2020-06-30 2020-07-08 Lumbeck & Wolter GmbH. & Co. KG. Messer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4431960C1 (de) * 1994-09-08 1995-11-09 Inofex Gmbh Messer für Fleischwölfe
DE19534674C2 (de) * 1995-09-19 2001-03-15 Inofex Gmbh Ringmesser für Fleischwölfe
DE202006019453U1 (de) * 2006-12-23 2007-03-01 Haack, Eberhard, Dr.-Ing. Ringmesser mit Distanzring zum Zerkleinern von tierischen Rohstoffen o.dgl.
DE202007003777U1 (de) 2007-03-14 2007-05-24 Haack, Eberhard, Dr.-Ing. Distanzring für Ringmesser in Messer-Lochscheibensystemen zur Zerkleinerung von Rohstoffen

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DE102009049844A1 (de) 2011-04-21
EP2311568A1 (fr) 2011-04-20

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