SU1699398A1 - Fish stripping apparatus - Google Patents

Abstract

The invention relates to devices for cutting fish and can be used in fish processing machines. The purpose of the invention is to increase the yield of the semi-finished product, simplify the design and increase reliability. The device contains paired disc skins 1 with a wedge-shaped sharpening 2, elastic elements 3, limiting bushings 4 "All of the above elements are mounted on the shaft 5 and rotate with it. In addition, the device contains a guide Knives 1 are installed with a deviation from the plane perpendicular to the shaft 5 The washer and nut 7 hold the knives 1, the elastic elements 3 and the limiting bushings 4 from axial displacement 2

Description

The invention relates to the fishing industry, in particular to devices for cutting fish

A device for cutting fish is known, which includes paired circular knives mounted on a shaft on the hubs with the possibility of self-aligning them to the size of the vertebral bone of the fish being processed due to the difference in circumferential efforts to cut bone and muscle tissue. The knives on the hubs, moved apart by the vertebral bone passing between them, move along the shaft thread in different directions and return to their original position by twisting springs about

However, this device has significant drawbacks. Cutting forces are applied to the peripheral part of the knives and create a wedging moment in the thread between the shaft and the hubs.

This moment will be variable, since the device is operated under conditions of constant contact with water, mainly sea water, and is not protected from water penetration to the friction pairs. When both sea water and fresh water are dried on the friction surface, sediment remains. In addition, particles of tissues of processed fish penetrate everywhere, which remain on the surface of the parts, especially in hidden cavities, dry out and change the surface of the friction. Such a phenomenon leads to jamming of knives and requires constant adjustment of the spring forces. The springs, in turn, during operation, change their characteristics,. Protecting the device from the penetration of water and fish tissue particles leads to significant structural complications, increasing the thunder

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The design quality is so high that the principle of knife dilution due to the difference in circumferential cutting effort is unacceptable.

Another significant drawback of the device is the complexity of its design. Requires the use of durable materials, t „k., Have significant

one

Noise mass at starting torque

The aim of the invention is to increase the yield of the semi-finished product, simplify the design and increase reliability.

This goal is achieved by the fact that a fish cutting device containing paired circular knives fixed on the shaft with the possibility of their self-installation depending on the size of the fish, elastic elements are mounted on the shaft between the paired circular knives and on their outer sides. with a gap relative to it and with the possibility of JH; HH deviating from the plane, perpendicular to the 2 shaft.

Fig. 1 shows schematically a device for cutting fish, a general view; Fig 2 - the same, side view0

The device for cutting fish contained 3

twin disc knives 1 with a wedge-shaped sharpening 2, elastic elements 3, limiting sleeves 4, all of the above elements are mounted on the shaft 5 and rotate with it. In addition, the device includes a guide 60

The knives 1 are mounted on a shaft 5 with a gap relative to the latter and have the opportunity to deviate from the plane perpendicular to the shaft 5 by an angle determined by the size of the vertebral bone passing between them.

The elastic elements 3 are made of rubber or polyurethane,

The washer and nut 7 hold the knives 1, the elastic elements 3 and the limiting bushings 4 from axial displacement

0

five

five

five

0

0

45

The device works as follows about

The fish, previously centered in the vertical plane of symmetry, is fed in any known way along the guide 6 with the tail or head into the gap between the knives 1,

Promotion of fish is carried out either by the efforts created during the cutting process or by other known

transporting devices.,

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When advancing fish between knives 1, soft tissues are cut, and when interacting with the vertebral bone, thanks to a wedge-shaped dagger 2, the knives 1 are deflected, squeezing between the limiting sleeves 4 and the plane of the knives 1, elastic elements 3 at an angle determined by the thickness of the vertebral bone all the way cutting process. Thus, the knives 1 cut off the layer of maca, without moving the vertebral bone.

The application of the invention will significantly simplify the design of the device, increase the reliability of its operation by eliminating wedging moments and friction between the parts.

Claims (1)

Invention Formula A device for cutting fish that contains paired circular knives mounted on a shaft with the possibility of their self-installation depending on the size of the fish, characterized in that, in order to increase the yield of the semi-finished product, simplify the design and increase reliability, between the paired circular knives and from their outer sides on The shaft is fitted with elastic elements, and the knives are mounted on the shaft with a gap relative to it and with the possibility of deviation from the plane perpendicular to the shaft. 2