RU2173051C2 - Fish cutting machine - Google Patents

Abstract

FIELD: fish industry. SUBSTANCE: fish cutting machine has carcass carrying shaft with disk knives attached to it through spacer washers, charging mechanism provided with fish receptacles and defined by members fastened to shaft by means of spacer washers, comb, charging and discharge chutes. Spacer washers are designed so that one spacer washer may be screwed into another spacer washer for changing space between disk cutters and charging mechanism members. Fish cutting machine is further provided with sharpening device mounted for movement along shaft and turning relative to attachment spindle. Charging mechanism receptacles are provided with flexible layers provided with spherical projections. Such construction allows fish to be cut into portions of different length. This machine may be used as technological equipment in shore fish processing houses or fish processing vessels, as well as in small-scale enterprises. EFFECT: simplified construction, reduced rearrangement costs and increased efficiency. 2 cl, 5 dwg

Description

 The invention relates to the fishing industry, in particular to devices for cutting into fish slices, and can be used as part of technological equipment of coastal fish processing enterprises or processing vessels, as well as in small businesses (block container type).

 The machine is designed for cutting carcasses of fish without prior sorting by length.

 A known machine for portioned cutting of fish (rotary portioned machine) containing a bed, a loading mechanism, a drive and circular knives, motionlessly mounted on the shaft. There are inclined trays for feeding carcasses to the loading mechanism and for diverting chopped pieces of fish from the machine. In addition, there are special pullers designed to remove pieces of fish randomly pulled by knives. (Chupakhin VN Technological equipment of fish processing enterprises - M .: Food industry, 1976, p. 93-94).

 A disadvantage of the known machine is that the disk knives and the loading mechanism are fixed on the shafts motionless and therefore, to cut the fish into pieces of different lengths, it is necessary to dismantle and re-set these mechanisms. In addition, the rotation of the loading mechanism is carried out at a constant speed, which does not allow changing the processing mode of the carcasses of the fish (feed rate, cutting force, etc.) depending on the characteristics of the raw material and the type of processed breeds.

 A known machine for portioned cutting of fish, including a metal frame on which mounted a knife shaft and a shaft of a transporting (loading) device in the form of a drum. On the knife shaft at equal distances from one another, spacer blades are included in the special grooves of the drum with spacer washers. For laying fish, the drum has nests located on a circle at an equal distance from one another. The machine is also equipped with loading and unloading trays and a comb, which protects the pieces of fish from jamming between the knives.

 This machine is the closest in combination of features to the claimed invention.

 The disadvantages of this machine are low productivity due to the need to retool the cutting and loading mechanisms when changing the length of the cut pieces of fish and the inability to adjust the angle of inclination of the loading tray and the rotation speed of the loading mechanism depending on physical (temperature, humidity, viscosity, etc.) and mechanical (linear dimensions, coefficient of friction, volume ratios, etc.) characteristics of the processed raw materials.

 The objective of the invention is to increase the productivity of the machine, making it possible to cut fish in portioned pieces of different lengths.

 The problem is solved in that a batch cutting machine for fish, comprising a frame on which a knife shaft is mounted with disk knives fixed to it with spacer washers, a loading mechanism with fish nests, formed by elements mounted on the drive shaft, a comb, loading and unloading trays, equipped with an inventory sharpening device installed with the ability to move along the blade shaft and turn relative to the axis of attachment; spacer washers are capable of screwing them into one another to ensure a change in the distance between the disk knives and the elements of the loading mechanism, and the drive of the loading mechanism is equipped with an option, while the loading tray is pivotally mounted on the frame with the possibility of changing the angle of inclination. The nests of the loading mechanism are equipped with elastic linings with spherical protrusions for more firmly holding fish carcasses in the nests.

 In FIG. 1 shows a machine for portioning fish, a longitudinal section; in FIG. 2 is the same, section AA, in FIG. 3 - attachment unit of circular knives, in FIG. 4 - fastener assembly of the elements of the loading mechanism, in FIG. 5 - element of the loading mechanism with the loading tray.

 The batch cutting machine for fish contains a frame 1, on top of which a cutting mechanism is mounted, including a knife shaft 2, on which disk knives 5 are fixed at an equal distance from each other by spacers 3 and 4, between which a comb 6 is installed to prevent jamming of pieces of fish between circular knives and inventory grinding device 7 with the ability to move along the knife shaft 2, and with a rotation relative to the axis of attachment 8 to the required angle until the abrasive work element touches a sharpening device with a cutting edge of a disk knife 5. For feeding fish to disk knives 5, the machine is equipped with a loading mechanism, including a drive shaft 10 connected to the variator 9, on which elements 13 with a socket are fixed at equal distances from each other with washers 11 and 12 14, in which elastic linings 15 having spherical protrusions are mounted for more firmly holding fish carcasses in nests. For loading and unloading fish, the machine is equipped with a loading tray 16 and an unloading tray 17. The disk knives 5 are closed by a casing 18 to ensure safe operation.

 The machine operates as follows.

 By means of the variator 9, the necessary speed of the loading mechanism is set, and the loading tray 16 is turned at a certain angle at which the fish has optimal sliding along the plane of the tray, and is fixed. Treated carcasses of fish are laid across the inclined loading tray 16, combining the head of the fish with one of the inner side walls of the tray, and fed to the nests 14 of the loading mechanism, where the carcasses are securely fixed in elastic pads 15, fed to rotating disk knives 5, cut into portioned pieces , which fall on the unloading tray 17, then go to recycling.

 If it is necessary to switch to cutting carcasses of fish into pieces of a different length, respectively, the distance between the disk knives 5 is changed using spacer washers 3 and 4 by screwing them one into the other or vice versa and the distance between the elements 13 of the loading device is also adjusted using the spacer washers 11 and 12 .

 As the blade knives 5 are dull, an inventory sharpening device 7 is connected. For sharpening the knives, the inventory sharpening device 7 is connected alternately to each of the rotating disk knives 5, moving it along the shaft, and if necessary, rotate relative to the axis of attachment 8 to the necessary angle until the abrasive working element contacts inventory grinding device 7 with a cutting edge of the disk knife 5. Thus, inventory grinding device allows without dismantling, special equipment and professional on forks to sharpen knives, which saves working time and thereby increases the productivity of the machine.

 The device is simple in design and convenient to operate. Due to the possibility of changing the distances between circular knives and, accordingly, the elements of the loading device using spacer washers, the machine has the ability to cut fish carcasses into pieces of various lengths without dismantling and readjustment, which gives it advantages compared to known machines, saves working time, and therefore, machine productivity increases.

Claims (2)

 1. Machine for portioned cutting of fish, containing a frame on which a knife shaft is mounted with disk knives fixed to it with spacer washers, a loading mechanism with fish nests, formed by elements mounted on the shaft, a comb, loading and unloading trays, characterized in that it is equipped with an inventory sharpening device installed with the ability to move along the knife shaft and rotate relative to the axis of attachment, spacer washers are made with the possibility of screwing them into one another for weight echeniya changing the distance between the circular knives and elements of the loading mechanism, the loading mechanism and the drive is provided with a variator, wherein the feed chute is pivotally secured to the chassis with the possibility of changing the angle of inclination.  2. The machine according to claim 1, characterized in that the nests of the loading mechanism are provided with elastic linings made with spherical protrusions.

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