SU1205866A1 - Arrangement for cutting off fish caudal fin - Google Patents

Description

one

. The invention relates to the fishing industry, in particular, to devices for cutting off the tail unasiftika in fish trimming machines with a vertical loading of unsorted large fish, mainly tuna.

The purpose of the invention is to provide an economical cutting of the caudal fin in fish of a wide size range.

The proposed device provides an ekonomichny cut tail fish fin without pre-sorting them by size and oriented supply of fish for further processing, which will create a single technological process of processing large spindle-shaped fish, mainly tuna

The device has a simple design and is reliable in operation.

FIG. Figure 1 shows schematically a device for cutting off the caudal fin in a fish, side view; in fig. 2 - the same, top view; in fig. 3 - scheme of the tension roller operation depending on the thickness of the fish.

A device for cutting fish tail fin contains paired vertical conveyors 1 with pressure rollers 2 mounted on axis 3, on which intermediate levers 4, which are swivel with swing arms 5 rigidly fixed on hinge axis 6, are fixed. To the same axis the arms 7 are rigidly attached, having at their lower ends a fork interlocking with the fingers 8, which are firmly attached to the bracket 9, at the ends of which the half-rings 10 are rigidly mounted. The latter are placed in the grooves of the sleeves 11, to which the disk nozzles 12 are rigidly attached. The sleeves 11 have a slotted connection with the shafts 13 of the gearbox 14 on which the electric motor 15 is mounted. The pressure roller 2 is fixed on the lever 16 with the possibility of moving around the fixed

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axis 17 under the action of fish 18, placed between the belts of the vertical conveyors 1, and provided with springs 19 attached to fixed supports.

The pressure rollers 2 in the non-working position form a gap between the branches of the vertical conveyors 1 less than the minimum thickness of the fish to be processed.

The device works as follows.

The fish 18 is placed between the branches of the vertical conveyors 1 and is moved by them towards the circular knives 12. The run-on rollers 2 are mounted on the circular knives 12, the fish 18 rotates them around the axis 17 with a turning radius equal to the length of the lever 16, stretching at the same time springs 19. Moving down, the pressure rollers 2 carry along axis 3 and intermediate levers 4, which are mounted movably on these axes. Levers 4, deflected down, turn levers 5, axis 6 and levers 7 around a fixed support. The forks of the levers 7 press the fingers 8 of the bracket 9 and, through the half-rings 10 of the slide, transmit the forward movement to the couplings 11 with the disk knives 12 along the pincer shafts 13 of the gearbox 14. Thus, having received constant rotation from the electric motor 15, the disk knives 12 move depending on the thickness of the fish 18 and cut off the tail fin of this fish economical cutting at the time of its passage through the pressure rollers 2.

The ratio between the length of the arms of the device, and therefore, between the thickness of the fish and the movement of the disk knives is determined by well-known methods.

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After the fish passes the 18 pinch rollers 2, the springs 19 return the rollers 2 and the circular knives 12 to their original position. Then the cycle of operation of the device is repeated.

Claims (1)

DEVICE FOR CUTTING TAILFIN TAILS IN FISH, containing paired vertical conveyors with spring-loaded pressure rollers and a disk knife mounted on the shaft, characterized in that, in order to provide an economical cut of the tail fin in fish of a wide size range, it is equipped with an additional disk knife mounted on to the shaft parallel to the shaft of the main disk knife, the disk knives are mounted on the shafts with the possibility of reciprocating movement along them, rigidly connected: interconnected and connected with pressure rollers lever system. FIG. / /4