EP4048445A1 - Système composé d'une vis sans fin pour un hachoir à viande et d'un axe porte-lames pouvant être relié à la vis sans fin, et hachoir à viande équipé d'un tel système - Google Patents

Système composé d'une vis sans fin pour un hachoir à viande et d'un axe porte-lames pouvant être relié à la vis sans fin, et hachoir à viande équipé d'un tel système

Info

Publication number
EP4048445A1
EP4048445A1 EP21815127.2A EP21815127A EP4048445A1 EP 4048445 A1 EP4048445 A1 EP 4048445A1 EP 21815127 A EP21815127 A EP 21815127A EP 4048445 A1 EP4048445 A1 EP 4048445A1
Authority
EP
European Patent Office
Prior art keywords
section
opening
screw conveyor
screw
insertion section
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
EP21815127.2A
Other languages
German (de)
English (en)
Inventor
Hubert P. BÜCHS
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.)
Turbocut Jopp GmbH
Original Assignee
Turbocut Jopp 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 Turbocut Jopp GmbH filed Critical Turbocut Jopp GmbH
Publication of EP4048445A1 publication Critical patent/EP4048445A1/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
    • B02C18/305—Details
    • 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
    • B02C18/301—Mincing machines with perforated discs and feeding worms with horizontal axis
    • B02C18/302—Mincing machines with perforated discs and feeding worms with horizontal axis with a knife-perforated disc unit
    • 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 relates to a system consisting of a screw conveyor for a meat grinder and a knife pin that can be connected thereto.
  • the invention also relates to a meat grinder with such a system, i.e. a meat grinder which has at least one such system of conveyor screw and knife pin.
  • a meat grinder is understood to be a mincing machine that works according to the meat grinder principle. This means, in particular, those devices that have a conveyor screw that is rotatably arranged in a tubular housing and in which cutting set parts are also arranged.
  • At least one cutting set part is fixed in a rotationally positive manner relative to the housing and at least one cutting set part is fixed in a rotationally fixed manner in relation to a knife pin, the knife pin being connected in a rotationally fixed manner to the conveyor screw.
  • Blade set parts that are fixed relative to the housing can be referred to as standing blade set parts.
  • Cutting set parts rotating in a rotationally fixed manner with the conveyor screw and the knife pin can be referred to as rotating cutting set parts.
  • U1 discloses a meat grinder with a knife pin which comprises a support section for arranging at least one knife to be fastened to the support section in a rotationally fixed manner.
  • the support section is adjoined in the axial direction by a stop surface which protrudes radially in relation to the support section and which produces the transition to a shank designed as a dihedron.
  • the shank is used to arrange and fasten the screw conveyor.
  • To attach the Screw conveyor is provided with a fixing disk with rear grip, which interacts with an internal thread formed in the screw conveyor.
  • the conveyor screw creates high pressures in the meat mincer housing, which also extend to the area between the conveyor screw and the knife pin. For this reason, meat juices and other fluids can enter the thread through gaps. If the assembly unit consisting of knife pin, conveyor screw and any other elements, such as a fixing disc, is not removed and cleaned, germs can develop in the gaps and get into the meat to be processed. It is particularly important to clean all elements, especially the opening in a screw conveyor. This is very difficult and in some cases almost impossible without leaving any residue, especially if a blind hole with an internal thread and/or corners, edges and/or undercuts is formed in the screw conveyor.
  • the object of the invention is to provide a system for connecting a conveyor screw for a meat grinder to a knife pin and a meat grinder with such a system, the connection of which can be easily established and released again and the elements of which can be cleaned easily, so that the system meets high hygiene requirements.
  • a system according to the invention comprises a conveyor screw for a meat grinder and a blade pin that can be connected thereto, the blade pin having an insertion section extending in an axial direction for insertion into a conveyor screw opening.
  • the plug-in section has a basic polygonal shape in cross-section, and the auger opening is designed in a complementary manner such that the knife pin can be connected to the auger in a rotationally fixed manner by inserting the plug-in section into the auger opening.
  • basic polygon shapes that are based on a regular polygon. It has been shown that on the basis of basic polygon shapes, in particular on the basis of a regular polygon with three corners, i.e.
  • a basic polygon shape in the context of the invention is to be understood in particular as polygons that are recognizable as being formed from a polygon, in particular from a regular polygon that is modified insofar as the plug-in section has a basic polygon shape in cross section with fully or partially rounded polygon corners. This avoids sharp-edged outer surfaces. This is advantageous with regard to assembly, durability, the risk of injury during assembly and disassembly, and also with regard to cleaning. Large radii of at least 5 mm, more preferably at least 8 mm and particularly preferably at least 10 mm or even at least 12 mm are preferred. All polygon corners are preferably rounded, with all polygon corners preferably having the same radius.
  • a system according to the invention can advantageously be implemented in this way designed so that during operation and thus during the use of a corresponding system or meat grinder - no longitudinal forces occur in the knife pin - in comparison to a screw conveyor known from the prior art with an insertion section.
  • tensile stress and the material stresses associated therewith are avoided and the fatigue strength of a corresponding knife pin is increased.
  • larger torques can be transmitted, which is particularly advantageous when comminuting frozen meat.
  • the particularly simple assembly and disassembly saves time, especially during repair, maintenance and cleaning activities.
  • the screw conveyor opening can also be designed in such a way that germs do not collect in the first place because the opening is full, or designed in such a way that the screw conveyor opening can be cleaned easily and inexpensively, for example because it is easily accessible, has no undercuts and/or none geometrically complex structures are provided.
  • the auger opening is free of notches or other indentations to avoid notch stress and the accumulation of dirt and germs.
  • the plug-in section has a basic polygonal shape in cross section with partially or completely rounded side edges.
  • the areas between two adjacent polygon corners are also completely or partially rounded.
  • flat surfaces can be completely or partially avoided, which results in advantageous material stress (stress distribution) under torque loads and thus in a long service life, especially with frequent disassembly and assembly of knife pins and screw conveyors.
  • the insertion section has a smooth surface in cross section over the entire circumference and/or in the axial direction over the entire length, ie no corners and/or edges are provided. This results in a particularly easy-to-clean structure or edges and depressions where dirt and germs can collect easily.
  • the cross section of the insertion section has the shape of an isod.
  • this is understood to mean not only constant thickness in the mathematical sense, which usually does not have rounded corners, but also basic polygon shapes that are based on constant thickness.
  • it is a basic polygon shape based on an equal thickness, in which, for example—in contrast to an equal thickness in the mathematical sense—the corners are rounded, so that the external dimension in the cross section deviates in areas of corners.
  • the wording also includes, in particular, those basic polygon shapes based on an equal thickness whose external dimensions in cross section vary by a maximum of 10 percent over the circumference, whose external dimensions in cross section are the same over at least 80 percent and/or whose external dimensions in cross section over a circumference of at least 80 percent or at least 90 percent by a maximum of 10 percent.
  • the insertion section and the screw conveyor opening are at least partially conical in the axial direction.
  • Such a conical design can limit the insertion depth of an insertion section into a screw conveyor opening, in particular if the conicity is designed as a stop.
  • the plug-in section and the screw conveyor opening are designed conically in the axial direction in such a way that a self-locking non-positive connection can be achieved by plugging them into one another.
  • a non-positive connection can also be established between the knife and the screw conveyor.
  • Such a connection can be designed as the only connection between the screw conveyor and the knife pin, resulting in particularly simple assembly and disassembly.
  • the conicities on the insertion section and on the screw conveyor opening are preferably designed in such a way that the non-positive connection can be released again without being destroyed, for example by using removal tools and/or carrying out specified disassembly steps.
  • a separate axial fixing element is provided for axial fixing of the knife pin relative to the screw conveyor, by means of which a non-positive and/or positive connection can be produced.
  • a non-positive connection can be produced in such a case, in particular, if a conical clamping section is provided on the axial fixing element, which is driven in the axial direction between the insertion section and the outer wall of the screw conveyor opening.
  • a combination of a force-locking and a form-locking connection can also be produced, in particular by producing a force-locking connection with a fixing element by means of a rotary movement, with the fixing element fixed in a rotationally force-locking manner forming a positive-locking connection in the axial direction.
  • the axial fixing element of a system according to the invention is preferably designed in such a way that it enables axial fixing independently of the non-rotatable connection between the blade pin and the screw conveyor, i.e. the axial fixing element can be coupled to the blade pin and removed from it without loosening the form-fitting, non-rotatable connection between the insertion section and the screw conveyor opening .
  • a fixing disk is provided as the axial fixing element, which has at least one retaining element which interacts with at least one web formed in the screw conveyor opening for axial fixing.
  • the fixing disk can be rotationally non-positively fixed relative to the at least one web, resulting in a positive connection in the axial direction.
  • Such connections are largely wear-free and easy to manufacture and release. Furthermore, such connections can be realized with simple geometries of web(s) and retaining element(s), resulting in easy cleaning.
  • two or more retaining elements and/or webs are provided.
  • the axial fixing elements are preferably distributed evenly over the circumference, so that there is an even load and force distribution on all retaining elements and webs.
  • the axial fixing element is ring-shaped and/or disk-shaped.
  • the axial fixing element further preferably has a through-opening which is adapted to a supporting section of the knife pin in such a way that the axial fixing element has the support section is displaceable in the direction of the insertion section.
  • At least one assembly structure is formed on the axial fixing element, this facilitates the handling and the assembly and disassembly of the axial fixing element.
  • Manufacturing technology is particularly easy to implement as a mounting structure on the axial fixing element, in particular gripping structures in the form of depressions and/or elevations.
  • One indentation and one elevation and/or two indentations are preferably formed in the form of indentations or elevations. These are preferably provided on opposite sides of the axial fixing element, because in this case the axial fixing element can be gripped and moved, in particular shifted and/or twisted, with a fork-like tool.
  • the cross section of the knife pin in the area of the insertion section has a larger maximum external dimension than the cross section of a carrying section of the knife pin, which is provided for arranging cutting set parts. In this way, particularly large torques can be transmitted via the insertion section. Also, particularly if no collar is formed between the support section and the insertion section, the screw conveyor can be fastened axially from the side of the support section.
  • the invention also relates to a meat grinder with a system as described above.
  • FIG. 1 shows a first embodiment of a knife pin of a system according to the invention in a side view
  • FIG. 2 shows the knife pin shown in FIG. 1 in an isometric representation in a view obliquely from behind
  • FIG. 3 shows the knife pin from FIGS. 1 and 2 in a view according to arrow III in FIG. 1,
  • FIG. 5 shows the knife pin from FIG. 4 in a view according to arrow V in FIG. 4,
  • FIG. 6 shows the knife pin from FIG. 4 in a view according to arrow VI in FIG. 4,
  • FIG. 7 shows a further embodiment of a knife pin of a system according to the invention with a conical plug-in section
  • FIG. 8 shows a further embodiment of a system with a knife pin, a conveyor screw shown schematically and a fixing disk in an isometric exploded view
  • FIG. 9 shows the screw conveyor from FIG. 8 in a view according to arrow IX in FIG. 8
  • 10 shows the screw conveyor from FIGS. 8 and 9 in a longitudinal section according to section AA in FIG. 9,
  • FIG. 11 shows the conveyor screw from FIGS. 8 to 10 in a view according to section B-B in FIG. 10,
  • FIG. 12 shows the axial fixing element from FIG. 8 in an enlarged isometric view looking towards the inside
  • FIG. 13 shows the axial fixing element from FIGS. 8 and 12 in a sectional representation through depressions formed in the outside and through two wings serving as retaining elements.
  • FIGS. 1 to 3 a first embodiment of a knife pin 10 of a system according to the invention is shown.
  • the knife pin 10 has a support section 12 , an insertion section 16 and a radially projecting collar 14 formed between the support section 12 and the insertion section 16 .
  • the system according to the invention relates in particular to the plug-in section 16.
  • the plug-in section 16 has a basic polygonal shape in cross section, which in the embodiment shown in FIGS. 1 to 3 is based on an isosceles triangle. Both the respective corners E and the side edges S extending between the corners are rounded.
  • the system also includes a conveyor screw, not shown in Figures 1 to 3, which has a conveyor screw opening which is designed to complement the geometry of the insertion section 16, so that by inserting the insertion section 16 into the conveyor screw opening, a positive, non-rotatable connection can be established.
  • both the plug-in section 16 and the screw conveyor opening are designed with a smooth surface without edges, which means that after disassembly, simple and thorough, complete cleaning can be carried out. Dismantling is also very time-saving.
  • FIG. 4 shows a further embodiment of another knife pin 10, the same reference numbers as in FIGS. 1 to 3 being used for identical or at least functionally identical elements of this embodiment and the further embodiments shown in the following figures.
  • the support section 12 is provided with an L-shaped depression 40 in the first embodiment according to FIGS. 1 to 3, the support section 12 of the second embodiment according to FIGS .
  • the design of the support section 12 of a knife pin is irrelevant to the invention. In this respect, the support section can be designed as desired.
  • the design of a further embodiment of a knife pin 10 according to FIG. 7 has an insertion section 16 which is designed conically in such a way that it tapers in the direction of the left-hand axial end.
  • the plug-in section 16 also has a basic polygonal shape.
  • a complementary auger opening ie also conical, but not shown
  • the relative position between the knife pin 10 and the screw conveyor is predetermined by the geometric design of the elements engaging in one another (insertion section 16 and screw conveyor opening).
  • the non-positive connection caused by friction can be released again using measures known from the prior art in order to carry out cleaning.
  • FIGS. 8 to 13 A further embodiment of a system according to the invention is shown in FIGS. 8 to 13, with a conveying screw 18 also being shown in simplified form in FIGS. 9-11 with only a small initial section of a screw helix 36 .
  • the screw conveyor 18 has a screw conveyor opening 20 which is designed to complement the insertion section 16 of the knife pin. By inserting the insertion section 16 into the auger opening 20, a non-rotatable connection between the knife pin 10 and the auger 18 is established.
  • a separate fixing disc 26 is provided as the axial fixing element 22 .
  • the fixing disk has two mounting structures 24 in the form of depressions 28 on its outside.
  • Two wings 34 serving as retaining elements 32 are provided on the inside of the fixing disk. The wings 34 correspond to webs 30 formed in the area of the screw conveyor opening 20.
  • the insertion section 16 is first inserted into the screw conveyor opening 20 .
  • the fixing disk 26 is then guided over the support section 12 of the knife pin 10 and also inserted into the screw conveyor opening 20 .
  • the fixing disk can be fixed in the direction of rotation of the fixing disk 26 in a non-positive manner and in the axial direction with a positive fit in relation to the screw conveyor 18.
  • the fixing disk 26 has a radially projecting collar 40 on its outer side A, on which the depressions 28 are formed.
  • the collar 40 is used with its inside I in the assembled state to the end face 46 of screw conveyor opening 20 to create.
  • the end face 46 is arranged in a recessed manner in relation to a peripheral edge 50 .
  • the fixing disk 26 is pre-positioned in relation to the screw conveyor opening during assembly.
  • An inner collar 48 with a contact surface K extends from the inside I of the collar 40.
  • the contact surface K is pressed against the sealing surface 52 when the wings 34 press into the area between the webs 30 and the sealing surface 52. This creates a sealing effect between the fixing disk 26 and the screw conveyor opening 20 .
  • the contact surface serves as a stop for the stop collar 44 on the blade pin 10 and thus restricts the axial mobility of the insertion section 16 of the blade pin in the axial direction within the screw conveyor opening 20 of the screw conveyor 18 .
  • a hygiene measure that is advantageous in practice in connection with the system according to the invention can be to completely fill a screw conveyor opening 20, which—as, for example, in the embodiment shown in FIGS fill.
  • a medium is preferably selected that has a lower melting point than the melting point of the material of the screw conveyor, knife pin and any other elements. Wax, for example, can be used as such a medium.
  • Such a medium can—preferably in the liquefied state—be filled into the auger opening 20 in order to then carry out the assembly between the knife pin and the auger. This ensures that the cavity of the screw conveyor opening is completely filled with the medium. After assembly, excess medium can then be removed. This procedure ensures that no dirt and thus no germs get into the cavity.
  • the medium can then be liquefied again for disassembly.

Landscapes

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

Abstract

L'invention concerne un système composé d'une vis sans fin (18) pour un hachoir à viande et d'un axe porte-lames (10) qui peut être relié à la vis sans fin. L'axe porte-lames (10) présente une partie d'insertion (16) s'étendant dans une direction axiale pour une insertion dans une ouverture de vis sans fin (20), et la section transversale de la partie d'insertion (16) a une forme de base polygonale et l'ouverture de vis sans fin (20) est conçue pour être complémentaire de telle sorte que l'axe porte-lames (10) puisse être relié à la vis sans fin (18) de manière solidaire en rotation par insertion de la partie d'insertion (16) dans l'ouverture de vis sans fin (20).
EP21815127.2A 2021-01-14 2021-11-11 Système composé d'une vis sans fin pour un hachoir à viande et d'un axe porte-lames pouvant être relié à la vis sans fin, et hachoir à viande équipé d'un tel système Pending EP4048445A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202021100142.9U DE202021100142U1 (de) 2021-01-14 2021-01-14 System aus einer Förderschnecke für einen Fleischwolf und einem damit verbindbaren Messerzapfen sowie Fleischwolf mit einem solchen System
PCT/EP2021/081439 WO2022152429A1 (fr) 2021-01-14 2021-11-11 Système composé d'une vis sans fin pour un hachoir à viande et d'un axe porte-lames pouvant être relié à la vis sans fin, et hachoir à viande équipé d'un tel système

Publications (1)

Publication Number Publication Date
EP4048445A1 true EP4048445A1 (fr) 2022-08-31

Family

ID=74644978

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21815127.2A Pending EP4048445A1 (fr) 2021-01-14 2021-11-11 Système composé d'une vis sans fin pour un hachoir à viande et d'un axe porte-lames pouvant être relié à la vis sans fin, et hachoir à viande équipé d'un tel système

Country Status (3)

Country Link
EP (1) EP4048445A1 (fr)
DE (1) DE202021100142U1 (fr)
WO (1) WO2022152429A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021119200A1 (de) 2021-07-23 2023-01-26 Kutter- und Gerätebau Wetter GmbH Förderschneckenvorrichtung mit demontierbarem Zapfen und Fleischwolf hiermit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9750264B2 (en) * 2013-10-22 2017-09-05 Rome, Ltd. Perforated plate for meat grinding reclamation system
DE202020105051U1 (de) 2020-09-02 2020-09-08 Lumbeck & Wolter GmbH. & Co. KG. Fleischwolf

Also Published As

Publication number Publication date
DE202021100142U1 (de) 2021-02-03
WO2022152429A1 (fr) 2022-07-21

Similar Documents

Publication Publication Date Title
EP1834102B1 (fr) Liaison arbre-moyeu a systeme d'arret
DE202004002953U1 (de) Verbindungseinheit
EP1856418A1 (fr) Douille de serrage et liaison par serrage
DE102009007250A1 (de) Spritze
DE202016106367U1 (de) Zweiwellenzerkleinerer mit wechselbarem Schneidmessersatz und lösbaren Wellenenden
DE19703871A1 (de) Deckel zum Verschließen eines Arbeitsbehälters
EP4048445A1 (fr) Système composé d'une vis sans fin pour un hachoir à viande et d'un axe porte-lames pouvant être relié à la vis sans fin, et hachoir à viande équipé d'un tel système
WO2013053811A2 (fr) Système d'outil
EP2594367A1 (fr) Outil de vissage doté d'un dispositif de limitation du couple transmis
EP3375570B1 (fr) Clé d'armoire électrique
DE2905363C2 (de) Scherbolzenkupplung
DE10048918C1 (de) Verbindungselement mit einem Kopf und einem zumindest teilweise mit einem Gewinde versehenen Schaft
WO2020127874A1 (fr) Outil de rinçage pour pièce à main d'un instrument chirurgical
DE202021103953U1 (de) Förderschneckenvorrichtung mit demontierbarem Zapfen und Fleischwolf hiermit
DE102010010209B4 (de) Matrizenscheibe
EP3517727B1 (fr) Outil de carottage
EP2665388B1 (fr) Dispositif d'accouplement comprenant un disque monobrosse et une bride
DE102015202998B3 (de) Bügelgriffsystem für Hygieneanwendungen
WO2004092542A1 (fr) Corps de coupe cylindrique
DE202004018828U1 (de) Geschmiedeter Spannsatz
WO1994007072A1 (fr) Raccord de tuyaux demontable
DE8711846U1 (de) Bohrwerkzeug mit im wesentlichen scheibenförmiger Bohrkrone
DE911197C (de) Insbesondere fuer den Fluegelantrieb von Spinn-, Zwirn- und Vorspinnmaschinen geeignete Kupplung
DE2016511C3 (de) Vorrichtung zum Verbinden von auf Naben angeordneten Messersternen mit der Antriebsnabe einer Bodenfräse
WO2023001663A1 (fr) Dispositif transporteur à vis ayant une broche amovible, et hachoir équipé de celui-ci

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220405

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20240604