Patent GB-1372873-A (GB)
Title: Method and apparatus for sectioning a product
IPC: B26D7/30
Filed: 1971-10-21
Abstract: 1372873 Foodstuff cutting-machine KRAFTCO CORP 21 Oct 1971 [30 Oct 1970] 49037/71 Heading A4C [Also in Division B5] An apparatus for cutting a food product, such as cheese, comprises a supporting frame 20 on which a block of cheese 10 is carried, a carriage 22 which engages the block of cheese and is used for advancing the block longitudinally along the frame, first and second cutting means (24), (32) Fig.1 (not shown), and a conveyer 34 for removing the cheese-cuts (12), (14), a sensor (26), Fig.2, (not shown) for determining the advancement of the block on the frame 20, a pulse generator (28) for producing a succession of electrical signals in response to said advancement, and a counter (30) to receive the signals, said counter being pre-set to predetermined values corresponding to the required sizes of the individual cheese-cuts required. The counts are accumulated by the counter (30) and on each occasion that one of the pre-selected values is reached the counter triggers a timed sequence which stops advancement of the carriage 22. At this point the second cutter (32), secured at the bottom of a cutter fork 62, cuts the semi-cylindrical half-blocks of cheese cut by the first cutter (24) into cheese-cuts (14). To advance the carriage 22 towards the cutters, an hydraulic motor 54 is used which comprises an hydraulic drive cylinder 56 extending longitudinally of the frame 20 at the cheese-cut receiving area. Suitable hydraulic and electrical controls Figs.5, 6, (not shown) are used to operate the motor (which may not necessarily be hydraulic). Cutter (24) is arranged to cut the cheese-block into a pair of semi-cylindrical half-blocks (12) upon advancement of the cheese-block, although the cutter (24) need not be employed when it is desired to prepare round cheese-cuts. Cutter (32) extends transversely to the longitudinal block of cheese. Vertical movement of cutter (32) is caused by another hydraulic motor 64 which is mounted beneath the cutter plate 60. The diameter of the cheese-blocks to be cut depends on the stroke of the cutter cylinder 66, normally having an 8 inch stroke. The movement of the carriage 22 as the cheese is moved on the rollers 52 is sensed by a sensor (26) which comprises an elongated rack and a rotatable wheel mounted on the underside of the carriage 22. Movement of the rack simultaneously rotates the wheel and thereby indicates movement of the block of cheese. Such rotational movement is translated into a succession of electrical signals, although other forms of signal may be employed. The wheel is operatively connected to a pulse generator (28) such that a succession of electrical signals is generated upon rotation of the wheel. The carrier and cutter motors 54, 64 respectively are controlled by the timed sequence and cause the cutter (32) to be either raised or lowered accordingly and cut the cheese-block. The spacing between the accumulated signal values determines the length of the block of cheese advanced. A plurality of slices of unequal size may be formed and when aggregated give a predetermined weight of cheese for retail. To remove the cheese-cuts (14) after their division a conveyer 34 is provided. This moves at a speed greater than that of the cheese-block and therefore the cuts of cheese (14) become separated thus facilitating removal by an operator. Should a plurality of cheese blocks be required to be cut simultaneously then a plurality of units may be utilized.