Rotary fish grading device

Abstract

The invention belongs to the field of fish processing equipment, and particularly relates to a rotary fish grading device. The rotary fish grading device comprises a main body frame, a driving device,a grading device and a fish receiving device, wherein the main body frame is mainly formed by welding sectional materials and is used for connecting and fixing other devices; the driving device consists of a motor and a pair of gears and is used for providing power for the grading device; the grading device mainly comprises a rotating shaft, a circular sliding rail and 16 arc-shaped baffle assemblies, the arc-shaped baffle assemblies are hinged to the rotating shaft, rolling wheels are arranged on the outer sides of baffles, the rolling wheels make contact with the circular sliding rail, theopening size of the baffles is controlled, and therefore the purpose of fish grading is achieved; and the fish receiving device is generally funnel-shaped, and the interior of the fish receiving device is divided into different spaces by thin plates and used for containing fishes of corresponding grades falling from the grading device. The rotary grading scheme is adopted, so that the rotary fishgrading device has the advantages of continuity, adjustability, simple structure and the like, the damage to fish is small, and the processing efficiency and the processing quality of fish products can be greatly improved.

Description

technical field [0001] The invention belongs to the technical field of fish processing equipment, and in particular relates to a rotary fish grading device. Background technique [0002] Various fish and fish products are widely loved by people because of their delicious taste and rich nutrition. As the front process of fish processing, the grading of fish is particularly important. Classification of fish into different grades according to size is for the convenience of subsequent processing or sale, and its grading efficiency and grading quality will directly affect subsequent processing. Therefore, fish grading has become a hot topic in the research of the fish processing industry. [0003] In order to improve the efficiency and quality of fish grading, some solutions and equipment have been proposed at home and abroad, such as the patent CN201820490905.5 (Atlantic salmon live fish grading device), which works by grading through multiple trapezoidal rollers arranged in pa...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the efficiency and quality of fish grading, some solutions and equipment have been proposed at home and abroad, such as the patent CN201820490905.5 (Atlantic salmon live fish grading device), which works by grading through multiple trapezoidal rollers arranged in parallel. The gap between the two trapezoidal rollers gradually increases from front to back. This grading method can greatly reduce the damage of fish, but because the trapezoidal rollers are short, the classification accuracy is low. If the trapezoidal rollers are lengthened, the rigidity will be insufficient, and the equipment occupies The ground area will also increase accordingly, and such a device cannot adjust the classification level arbitrarily

Another example is the patent CN 201510015002.2 (Numerical Controlled Fish Automatic Grading Machine), its working principle is still grading by grading rollers, and a section of the grading rollers can be controlled by PLC circuit to move laterally to adjust the grading level, but the equipment is expensive and the size of the grading The change of the conveying direction is fast, and good classification accuracy cannot be guaranteed.

Another example is patent CN201810843057.6 (a grading adjustment device for a live fish grading and screening machine), the device uses the rotary motion of the horizontal rotary device, and the horizontal bar on the sliding door contacts the metal block with an inclined surface, so that the sliding door can slide with damping. The slot moves to change the size of the opening between the sliding door and the vertical baffle to complete the grading action. This device has high grading efficiency, but there will be a lot of friction between the metal block with the inclined surface and the horizontal rod, which is easy to damage Equipment; causing injury to the fish and destroying the integrity of the fish when the horizontal bar becomes disengaged from the metal block and part of the fish's body protrudes through the opening between the sliding door and the vertical baffle but does not fall completely

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