CUTTING OF MEAT

Abstract: A cutting device for sausage meat comprising a surrounding and supporting tubular cutting head (11) for a strand of sausage meat (10) comprising a rotating profiled cutting means (17, 18) for cutting the sausage meat strand transversely into sausages (29) having convex shaped ends.

Description: The present invention relates to a device and method of cutting meat, more particularly skinless sausages. EP-A-226 925 describes a device and process for cutting sausage meat whereby a strand of sausage meat is fed through a surrounding and supporting tubular cutting head and the strand of sausage meat emitted from the outlet is cut at a predetermined time by means of an advanceable or retractable cutter to subdivide it into individual discrete portions of specified length. The preamble of Claim 1 is known from this document. According to the present invention there is provided a cuting device for sausage meat according to Claim 1. Conveniently means are provided to feed sausage meat into the tubular cutting head. The rotating profiled cutting means may conveniently be connected to at least part of the cutting head which is adapted to rotate on its longitudinal axis. Either part or the whole of the cutting head may be adapted to rotate. The profiled cutting means is advantageously adapted to reciprocate into and out of a cutting position. The profiled cutting means may be one or more profiled steel wire knives or one or more profiled pressure rollers having a concave configuration corresponding to the desired convex shaped ends of a pair of adjacent sausages in end to end contact. During the cutting operation the rotating cutting head may be stationary or "flying". In the former case, there should be means for enabling the strand of sausage meat-to flow discontinuously so that it is stationary while being cut, for example, by creating a loop of sausage before it flows into the cutting head whereby this loop of sausage can slacken and tighten periodically. In the case where the rotating cutting head is "flying", the cutting head is adapted to reciprocate so that it moves simultaneously with the strand of sausage meat during the cutting operation and, after cutting, moves in the reverse direction. When the whole of the cutting head rotates, the longitudinal axis of the cutting head is preferably vertical to avoid revolving the sausage. When only the part of the cutting head comprising the cutting means rotates the longitudinal axis of the cutting head may be positioned in any direction e.g. horizontal or vertical. The present invention also provides a process for cutting sausage meat according to Claim 6. The present invention will now be further illustrated by way of example only with reference to the accompanying drawings in which Figure 1 represents a diagrammatic side sectional view of one type of cutting device, Figure 2 represents a diagrammatic side sectional view of another type of cutting device, and Figure 3 represents a diagrammatic side sectional view of a profiled roller. Referring to Figure 1 of the drawings, sausage meat 10 supplied by means (not shown) flows through a tubular cutting head generally designated 11 comprising an inner tube 12 fixed to a support 13 attached to a base plate 14. The cutting head 11 is provided with a rotating part 15 driven by a drive belt 16. A cutting means support 17 provided with steel wire knives 18 is positioned just beyond the exit of the tube 12. The cutting means support 17 is connected to a reciprocating groove ring 19 moveable on rotating part 15 and provided with rollers 20 mounted on a fork (not shown) by means of the curved end 21 of a lever 22 pivoting about a point 23 on a support 24. The lever is connected to the rotating part 15 by means of a spring 25 enabling the cutting knives to reciprocate to and from a cutting position. A link 26 pivoting about a point 27 creates together with the lever 22 a parallelogram. A supporting tube 28 is provided for the cut sausages 29 before they fall onto a conveyor belt (not shown) for further transport. In operation, sausage meat 10 flows through the tube 12, the rotating part 15 rotates and the groove ring 19 reciprocates by means of the rollers 20 in the direction of the arrows A-B and is synchronised to reciprocate at appropriate time intervals so that the rotating steel wire knives 18 advance to contact and cut and then recede from the sausage meat, the flow of which is synchronised to stop during the cutting. When the groove ring 19 moves in the direction A, the cutting means support 17 and knives 18 advance towards the sausage and cutting occurs and when the groove ring moves in the direction B it presses against the curved end 21 of lever 22 causing the cutting means support 17 and knives 18 to be withdrawn from the sausage and cutting ceases. Referring to Figure 2 of the drawings, a strand of sausage meat 10 supplied by means (not shown) flows through a reciprocating, rotating tubular cutting head whose longitudinal axis is vertical generally designated 11 comprising an inner tube 12 rotated by a drive belt 13 and reciprocated by suitable means (not shown), fitted within a support 14 attached to a base plate 15. A cutting means 16 provided with steel wire knives 17 is positioned just beyond the exit of the tube 12. The cutting means support 16 is connected to a reciprocating groove ring 18 provided with rollers 19 by means of the curved end 20 of a lever 21 pivoting about a point 22 on a support 23. The lever is connected to the inner tube 12 by means of a spring 24 enabling the cutting knives to reciprocate to and from a cutting position. A link 25 pivoting about a point 26 creates together with the lever 21 a parallelogram. A supporting tube 27 is provided for the cut sausages 28 before they fall onto a conveyor belt (not shown) for further transport. In operation, sausage meat 10 flows through the reciprocating rotating tube 12 and the groove ring 18 reciprocates by means of the rollers 19 in the direction of the arrows A-B and is synchronised to reciprocate at appropriate time intervals so that when the groove ring 19 moves in the direction A, the cutting means support 16 and the rotating steel wire knives 17 advance to contact and cut the sausage meat and when the groove ring moves in the direction B it presses against the curved end 20 of the lever 21 which pivotes about point 22 to cause the cutting means support 16 and the knives 17 to recede from the sausage and the cutting ceases. The reciprocating movement of the rotating tube 12 is synchronised with reciprocation of the steel wire knives 17 so that the tube 12 moves simultaneously with the sausage meat strand during the cutting operation and after cutting moves in the reverse direction. Figure 3 shows an alternative cutting means comprising a roller 30 with a profiled edge 31 with support plate 32, connecting lever 33 having curved end 34 pivoting about a point 35 and a spring 36, which may replace the steel wire knives.

Claims: A cutting device for sausage meat (10) comprising a cutting head (11) which includes a tube (12) for surrounding and supporting a strand of sausage meat (10) and a cutting means (17, 18, 31) positioned adjacent an exit or an interruption of the tube (12) characterized in that the cutting means (17, 18, 31) is rotatable and profiled and has a rotational axis which coincides with the longitudinal axis of the tube, that it is adapted to reciprocate to and from a cutting position for cutting the sausage meat strand transversely and that it has a concave configuration corresponding to the desired convex shaped ends of a pair of adjacent sausages (28, 29) in end to end contact. A cutting device according to claim 1 wherein the rotating profiled cutting means (17, 18, 31) is connected to at least part of the cutting head (11) which is adapted to rotate on its longitudinal axis. A cutting device according to claim 1 wherein the profiled cutting means (17, 18, 31)is one or more profiled steel wire knives (17, 18) or one or more profiled pressure rollers (31). A cutting device according to claim 1 wherein there is a means for enabling the strand of sausage meat (10) to flow discontinuously so that it is stationary during the cutting operation. A cutting device according to claim 1 wherein the cutting head (11) is adapted to reciprocate so that it moves simultaneously with the strand of sausage meat (10) during the cutting operation and, after cutting, moves in the reverse direction. A method of cutting sausage meat comprising rotating at least a part of a cutting head, which includes a tube, together with a rotatable profiled cutting means having a concave configuration and being positioned adjacent an exit or an interruption of the tube, feeding sausage meat through the tube, reciprocating the cutting means to and from a cutting position for cutting the sausage meat strand transversely whereby the rotational axis coincides with the longitudinal axis of the tube for cutting the sausage fed from the tube into pieces of sausage having convex ends. A method according to claim 6 wherein when the whole of the cutting head (11) rotates, the longitudinal axis of the cutting head is vertical.

Inventors: WADELL, LARS GUSTAF ALBERT
Applicants: FRISCO-FINDUS AG
Application year: 1990
Main classification: A22C11
IPC codes: B26D3, B26D5, A22C11