Cutting set system for a meat mincing machine

Abstract

The invention relates to a reliable cutting set system for a meat mincing machine. The mutually matched coding ( 14, 24 ) between knife pins ( 10 ) and the cutting set element ( 20 ) prevents an incorrect installation of the cutting set element ( 20 ) after a cleaning process or during the initial assembly, thereby increasing the operational safety. The invention allows a detection of the correct cutting set element ( 20 ) of a cutting set system and thus an unambiguous allocation of the cutting set element to a knife pin ( 10 ) of a cutting set system.

1 . A cutting set system for a meat grinder, comprising a drivable knife journal ( 10 ,  10 ′) and having a cutting element mounted on the knife journal ( 10 ,  10 ′), the knife journal ( 10 ,  10 ′) having a cross-section and
 wherein the knife journal ( 10 ,  10 ′) has a bearing section ( 13 ) for the cutting element mounted on the knife journal ( 10 ,  10 ′), 
 wherein the cutting element has a central hub ( 21 ) provided with a through hole ( 22 ) for rotationally fixed mounting on the knife journal ( 10 ,  10 ′), the through hole having a cross-section and having an inner surface, the cross-section of the knife journal ( 10 ,  10 ′) being adapted to the cross-section of the through hole of the cutting element, 
 wherein a plurality of partial circumferential surfaces ( 151 ,  152 ,  153 ,  154 ), form a circumferential surface ( 15 ) of the knife journal ( 10 ,  10 ′), in particular two parallel partial circumferential surfaces ( 152 ,  154 ) being present and interacting as drive surfaces with appropriately designed partial inner surfaces ( 231 ,  232 ,  233 ,  234 ) of the inner surface ( 23 ) of the through hole ( 22 ) of the cutting element during a rotational movement in a direction of rotation (D), 
 wherein at least one coordinated coding is present on the inner surface ( 23 ) of the through hole ( 22 ) of the cutting element and on the circumferential surface ( 15 ) of the knife journal ( 10 ,  10 ′), 
 characterized in that either: 
 the coding of the knife journal ( 10 ,  10 ′) acts as a journal-side coding element ( 14 ,  14 ′) between adjacent partial circumferential surfaces ( 151 ,  152 ) and, in a coordinated manner, engages with a coding element ( 24 ,  24 ′) on the cutting element between two adjacent partial inner surfaces ( 231 ,  232 ), or 
 the coding is arranged on a partial circumferential surface ( 151 ,  152 ,  153 ,  154 ) of the knife journal ( 10 ,  10 ′) and matches to a corresponding coding element on the cutting element. 
 
     
     
         2 . The cutting set system according to  claim 1 , characterized in that the cutting element comprises either a perforated disc with a plurality of holes arranged around the hub ( 21 ), or a knife ( 20 ,  20 ′) with a plurality of knife blades ( 25 ), which are arranged around its hub ( 21 ) and extend outwards from the latter, with at least one cutting edge ( 26 ). 
     
     
         3 . The cutting set system according to  claim 1 , characterized in that at least one coding element is employed, with the coding element ( 24 ,  24 ′) on the cutting element having a shape corresponding to the journal-side coding element ( 14 ,  14 ′). 
     
     
         4 . The cutting set system according to  claim 1 , characterized in that the journal-side coding element ( 14 ) has an axis of rotation extending in the axial direction of the knife journal ( 10 ,  10 ′), a connecting surface of which comprises adjacent partial circumferential surfaces ( 151 ,  152 ) of the knife journal ( 10 ,  10 ′), and is formed by material removal of a contact edge of these two adjacent partial circumferential surfaces ( 151 ,  152 ). 
     
     
         5 . The cutting set system according to  claim 4 , characterized in that the journal-side coding element ( 14 ) has an axial direction of the knife journal ( 10 ,  10 ′), on adjacent partial circumferential surfaces ( 151 ,  152 ), and the coding element ( 24 ) on the cutting element is a corresponding planar connecting surface of the partial inner surfaces ( 231 ,  232 ). 
     
     
         6 . The cutting set system according to  claim 4 , characterized in that the journal-side coding element ( 14 ) has an axial direction of the knife journal ( 10 ,  10 ′), and the coding element ( 24 ) on the cutting element is a corresponding curved connecting surface of the partial inner surfaces ( 231 ,  232 ). 
     
     
         7 . The cutting set system according to  claim 1 , characterized in that the journal-side coding element ( 14 ′) is a rib running in the axial direction of the knife journal ( 10 ,  10 ′), and the coding element ( 24 ′) on the cutting element is an adapted groove running in the axial direction. 
     
     
         8 . The cutting set system according to  claim 1 , characterized in that in each case the number of journal-side coding elements ( 14 ,  14 ′) is one, and the number of coding element ( 24 ,  24 ′) present on the cutting element is one. 
     
     
         9 . The cutting set system according to  claim 1 , characterized in that, as coding in addition, a transponder is present on the inner surface ( 23 ) of the through hole ( 22 ) of the cutting element, which transponder interacts with a receiver which is arranged in the knife journal ( 10 ,  10 ′). 
     
     
         10 . The cutting set system according to  claim 1 , characterized in that the knife journal ( 10 ,  10 ′) has a front connecting section ( 11 ) for connection to a screw conveyor of the meat grinder and a rear storage section ( 13 ) for connecting mounting at least one cutting element, namely a pre-cutter, knife ( 20 ,  20 ′), or perforated disk.