Fish killing machine

Abstract

The invention discloses a fish killing machine comprising a conveying device, a descaling device, and a sectioning device; the conveying device comprises at least three fish conveying and clamping mechanisms which are adaptive to the shapes of fishes, and each fish conveying and clamping mechanism comprises a pair of conveying wheels which are used for clamping the fishes and conveying the fishes forwards; the descaling device is arranged between the two fish feeding and clamping mechanisms, and the descaling device comprises two nozzle assemblies and a driving mechanism for driving the two nozzle assemblies to linearly move up and down; the two nozzle assemblies comprise nozzle rods and one or more nozzles which are arranged on the nozzle rods and are used for spraying high-pressure water to remove fish scales, and the high-pressure water sprayed by the nozzles is obliquely sprayed to fish conveyed between the two nozzle assemblies; and the sectioning device is used for sectioning the fish without scales in the process of conveying the fish by the conveying device. The fish killing machine provided by the invention can remove fish scales cleanly and cannot damage fish meat.

Description

technical field [0001] The present invention relates to a machine for slaughtering fish. Background technique [0002] There are many types of fish. The main edible freshwater fish include carp, grass carp, crucian carp, mandarin fish, etc., and sea fish include yellow croaker, hairtail, flat fish, etc. They all have the characteristics of tender and delicious meat and rich nutrition, and are a good source of some vitamins and minerals. According to the "State of World Fisheries and Aquaculture" report released in 2020, the total fish production will increase to 204 million tons by 2030, an increase of 15% from 2018, and the share of aquaculture will also increase from the current 46%. increase. This increase is about half of the increase in the past ten years, and when converted into per capita fish consumption in 2030, it is estimated to be 21.5 kg. [0003] Huge fish consumption will drive the development of fish processing industry. The slaughtering of fish is partic...

AI Technical Summary

Problems solved by technology

The slaughter of fish is particularly troublesome because the body of the fish is slippery and there are too many scales. Manual slaughter is time-consuming and laborious, and the effect of the existing slaughtering machines is not ideal.

Some slaughtering machines use steel brush rollers to remove fish scales. Steel brush rollers are not only unclean when removing fish scales, but also tend to hang off fish meat and leave scratches on fish, which affects the quality of fish products.

In order to adjust the cutting depth, some slaughtering machines set the cutting knife to be adjusted up and down manually, but due to the heavy weight of the cutting knife, it is laborious to adjust

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