SU1329738A1 - Arrangement for descaling fish - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to fish industry, namely, devices for removing scales from the rndba. The purpose of the invention is to increase the quality of cleaning and prevent injury to the fish by ensuring its reliable movement at a predetermined speed during processing. The device contains transporting rotors 1 and 20, driven in a counter-rotation and about 25, g l (L 11 yy fig g

Description

developed by radially mounted on the axis x 6 with the possibility of rotation of the plates 7, located at an obtuse angle to the direction of rotation of the rotors. The plates are flared 8 to prevent fish from getting between the plates 7. Circumferential, concentric

one

The invention relates to the fishing industry and can be used to clean fish from scales in a wide species and size range on coastal fish processing enterprises and vessels of the fishing fleet.

The purpose of the invention is to improve the quality of cleaning and prevent injury to fish by ensuring its reliable movement at a given speed during processing.

The goal is accomplished by providing regulated usss to press the fish against the scale-removing rollers.

FIG. 1 shows a schematic of a device for taking scales from a fish; in fig. 2 shows section A-A in FIG. one; in fig. 3 - the position of the plates of the transporting rotor at the time of entry of the fish and during its processing.

The device for removing scales from fish contains transporting rotor 1 and scale-removing rollers 2 and 3 with knives mounted on them, tray D of feeding and tray 5 of diverting fish.

The rotor 1 has an axis 6, on which the plates 7 are rotatably mounted.

The plates 7 are located at a blunt angle (angle oi in Fig. 3) to the direction of movement of the rotor 1 and have a flange 8 that closes the volume between two adjacent plates 7 and prevents fish from entering the space between the plates. At the same time plates 7 have windows 9, in each of which passes the flange 8 of the previous plate with the relative displacement of the latter under the influence of the processing object (in contact with the body of the fish)

The rotor 1 is mounted on a horizontal shaft 10.

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rotors 1 and 20, scale-removing rollers 2 and 3 with knives are installed, each roller is installed in conical centers 11 and 12, and center 12 is installed with the possibility of reciprocating axial movement. 2 з.п, ф-л, 3 Il.

Scale-removing rollers 2 and 3, having a different configuration depending on the type and size of the fish to be treated, are located circumferentially concentric with the rotor 1, and mounted around the periphery of the plates 7 with the formation of a minimum gap.

Each of the rollers 2 and 3 should be installed in the conical centers 11 and 12.

The centers 11 are rotated in corresponding directions by means of gears 13 interacting with gears 14 and 15 which are engaged and are rotating in opposite directions to each other. Gear ccheleso 15 is equipped with an asterisk 16 and is driven. Centers 11 are fixed in axial direction.

The centers 12 are installed in the housings 17 and have the possibility of axial reciprocating the M-parts in the cages 18 to the extent sufficient to free the rollers 2 and / or 3 from the centers when they are replaced.

The conical centers 11 are driven in rotation from the electric motor 19 via an asterisk 16 and gears 14 and 15.

It is advisable to provide the device with an additional rotor 20 mounted on a horizontal shaft 21. The shafts 10 and 21 are interconnected by gear wheels 22 and 23 and are driven into counter rotation. The shaft 21 of the rotor 20 is provided with an asterisk 24 and is driven by the electric motor 19 through the gearbox 25.

The device works as follows.

In tray 4, the fish heads forward, one after the other, without spacing.

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or at short intervals of different lengths.

When the rotor 1 rotates, the spring-loaded pressure plates 7, which form the outer surface of the rotor 1, pick up the fish and press it to the rapidly rotating scale-removing roller 2. Since the rotation of the rotor 1 and the removable rollers 2 are facing each other, they affect the fish in one direction, to help her move headfirst to subsequent videos.

As it moves from tray 4, the fish body comes in sequential contact with pressure plates 7 on one side and scale-removing rollers 2 and 3 on the other side.

Depending on the length of the object being processed (fish), the number of rollers simultaneously in contact with fish can vary from two to four and the number of plates, respectively, from four to nine, i.e. in fact, during processing in the zone of one of the rollers, fish are pressed on average by two or three plates.

Since both elements (roller 2 and pressure plate 7) in contact with the fish tend to move it headfirst from the loading zone to the unloading zone, and there are no fixed elements in contact with the fish, reliable movement of the fish is ensured. stop it.

The given speed of fish movement is ensured by the fact that the moving pressure plates 7 are directed at an obtuse angle (angle oi in Fig. 3) to the direction of movement of the fish and prevent its movement with a speed exceeding the linear speed of the pressure plates 7.

As the rapidly rotating crankshafts 2 and 3 tend to give the fish increased speed, the fish acts on the pressure plates 7 moving at a given speed, try to turn them around the axes 6, with the result that the formed and equal to the specific thickness of the fish in a certain its gap between plates 7 and rollers 2 and 3 tends to decrease in cross section. Reducing the gap prevents fish from moving at a speed exceeding linear

0

97

. ,,

with

25

.

five

0 g

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speed of the peripheral edge of the pressure plate 7.

A complete guarantee of preventing the accelerated movement of the fish is to enter it with a certain interval or even a small overlap of the tail section. Since the fish in the tail section is much thinner than in the head section, the plate 7, resting along this fish, rests in the tail section or does not come into contact with the fish at all and locks the space behind it, reliably separates the following fish from the accelerated movement along the scale-removing rollers (Fig. 3).

If at the initial moment when the fish comes into contact with the first flaking roller 2 in the direction of movement, its impact will exceed the braking effect of the pressure plate, the linear movement speed of which is lower than the linear speed of movement of the flaking elements (knives), then the fish’s head abuts against In the course of the movement, the plate is in the initial position. The flange 8 of the plate forms a closed volume between two adjacent plates 7 and prevents the movement of the fish head into the space between the plates. Thus, the head part, being the most durable part of the fish body, generally perceives the braking force of the pressure plates 7, preventing the accelerated movement of the fish in comparison with a given movement under the influence of rapidly rotating scale-removing rollers 2 and 3.

Installing the pressure plates 7 at an obtuse angle to the direction of movement of the fish, moreover, allows to obtain, to some extent, automatic control of the force of pressing the fish against the scale-removing rollers 2 and 3.

The clamping force due to the spring element is set to the minimum. An additional pressing force occurs when the fish itself acts on the pressure plate 7 and is greater, the stronger the scales are, since the strength of the scales causes the force transmitted by the scale- removable rollers 2 and 3 to the fish, which tends to turn the plate 7 around the axis 6, as a result which increases the pressure on the fish. Once

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some of the scales are removed, the pressing force is reduced and, when fully removed, the scales are reduced to a minimum due to the force of the permanently acting spring element (springs, 5 torsions, etc.). Thus, a sparing mode of interaction of the scale-removing elements with the surface of the fish, the excess scales, is implemented, thus avoiding damage to the surface W of the fish in the most traumatic phase of its processing.

The second scale-removing mechanism removes the scales on the other side of the fish, -5

Scale-cleared fish out of the car on tray 5.

Formula of invention

Claims (3)

1. A device for removing fish scales containing a transporting rotor, plates formed of radially fixed on a horizontal shaft, blade-removing rollers with knives, trays for feeding and draining fish, so that, in order to improve the quality of cleaning and prevent five  -five 0 , 386 rotation of injury to the fish by ensuring its reliable movement at a given speed during processing, the plates are hinged for rotation, arranged at an obtuse angle to the direction of movement of the rotor and flanged to prevent fish from getting between the plates, while the flake-removing rollers are mounted circumferentially concentric to the rotor . 2. The device according to claim 1, characterized in that, in order to expand technological capabilities by replacing flake-removing rollers, each of the rollers is installed in conical centers, one of which is rotatably mounted and the other is axially reciprocating. 3. The device according to claim 1, characterized in that, in order to provide two-sided cleaning of the fish), it is provided with an additional rotor and scale-removing rollers, which are made similarly to the main ones, kinematically connected with the main ones.