Device for orientating fish bodies based on capacitance and audio detection technology

Abstract

The present invention discloses a device for orientating fish bodies based on a capacitance and audio detection technology. The device comprises a main conveying belt, an annular conveying belt, an auxiliary conveying belt, a capacitance detection mechanism and a sorting mechanism. The capacitance detection mechanism is used for collecting capacitance change signals and judging whether a head of afish body is in front or a tail of the fish body is in front according to the capacitance change signals. A limiting touch mechanism is arranged on the auxiliary conveying belt and used for clampingand limiting the fish body, an audio detection mechanism comprises a knocking module and a sound pickup module, the sound pickup module receives sound signals generated after the fish head is knocked,accurately judges whether one side of the fish head is a skull or a lower jaw, and thus judges whether a belly of the fish is on a left side or a right side. A position correcting mechanism is arranged on the auxiliary conveying belt to realize upward back faces and downward belly faces to move forwards along with the auxiliary conveying belt. The device can unify directions of the fish bodies with different orientation, then conducts directional sorting, and facilitates automatic processing of a subsequent production line.

Description

technical field [0001] The invention relates to the technical field of freshwater fish processing, in particular to a device for orienting fish bodies based on capacitance and audio detection technology. Background technique [0002] Freshwater fish is an important part of my country's food security, and it is also one of the main sources of animal protein in people's daily lives. It plays a very important role in ensuring food supply and other aspects. my country is a major producer of freshwater products in the world, and the output of freshwater fish accounts for more than 60% of the total output of freshwater products in the world. Herring, grass carp, silver carp, bighead carp, carp, crucian carp, and bream (bream) are the main bulk freshwater fish species in my country, and they are also the main body of freshwater aquaculture, and their industrial status is very important. In 2017, the total output of freshwater aquaculture in the country was 29.0529 million tons, of...

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Problems solved by technology

[0003] At present, the processing rate of aquatic products in developed countries accounts for more than 80% of the total production, while the processing rate of aquatic products in my country is less than 30%. Among them, the processing rate of freshwater fish products is even lower, accounting for less than 10% of the total, and the processing is basically It is mainly manual operation, and there are few professional freshwater fish processing production equipment and production lines, resulting in low production efficiency of freshwater fish deep processing; therefore, it is imperative to carry out technical research on freshwater fish processing institutions and develop freshwater fish processing equipment suitable for my country's national conditions Row

Orientation arrangement of fish bodies manually is labor-intensive, low in efficiency and high in cost

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