Automatic weight grading device for fish processing

Abstract

The invention discloses an automatic weight grading device for fish processing. The automatic weight grading device comprises a machine frame, wherein a plurality of support columns are fixed on the front side and the rear side of the machine frame, the machine frame is fixedly connected with a plurality of inclined plates I, a plurality of groups of the inclined plates I are arranged, and the middle group of the inclined plates I are obliquely arranged towards the right lower side, inclined plate groups are symmetrically arranged relative to the middle group, and the inclined plate groups arearranged in a herringbone shape; and fishes on two sides are concentrated to the middle group to be transported, an inclined plate II is arranged below the inclined plates I, a plurality of fixed shafts are fixedly connected to the upper sides of the inclined plates I, and conveying rollers are rotatably connected to the outer sides of the fixed shafts. According to the invention, graded discharging is performed through the arranged discharging channel, the fishes of different sizes are separated, and besides, the fishes are conveyed through the rotatable conveying rollers. The pulse air pressure changes are used for pushing, a supporting strip enables small fishes below to fall more easily, besides, separation is further performed through shaking separation plates, shaking of different amplitudes and frequencies is generated corresponding to the fishes of different sizes through the design of a cam, and the separation effect is improved.

Description

technical field [0001] The invention relates to the field of seafood processing equipment, in particular to an automatic weight grading device for fish processing. Background technique [0002] my country is a big fishery country, and the fishery industry plays an important role in the national economy. However, the processing ratio of aquatic products in my country is far below the world average level. According to statistics, 70% of the world's total aquatic products are sold after processing, and the proportion of fresh sales does not exceed 25%, while the processing ratio of aquatic products in my country only accounts for the total About 30%, the output value is very low, which seriously restricts the production and development of fishery in our country. As a pre-processing treatment, grading the size of fish is an important link. [0003] Fish grading after catching mainly includes manual grading and machine grading. Manual grading mainly relies on human observation to...

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Problems solved by technology

[0003] Fish grading after catching mainly includes manual grading and machine grading. Manual grading mainly relies on human observation to separate large and small fish; there is also a separation box with a fixed grid spacing, and the fish is poured into the separation box. The fish with small intervals fall into a special container through the grid, and the fish that cannot pass are put into other containers. Many domestic fishing boats and small and medium-sized processing enterprises use manual grading operations, but the labor intensity is high and the grading is very rough. For large-scale fishing For fishing boats, due to the large catch and long manual sorting time, it is easy to cause fish deterioration and have to be thrown away, which not only reduces economic benefits, but also seriously wastes fishery resources. In order to facilitate subsequent processing of fish after fishing, a A kind of grading processing device is very necessary, Chinese patent discloses a kind of fish weight automatic grading device, (authorized announcement number CN205110140U), this patented technology realizes that the fish after catching is only automatically graded and screened according to the size, the grading device The angle and the distance between the grading rollers can be easily adjusted according to the needs, and the grading method is reliable. However, if you want to achieve a better grading effect, you need to feed a small amount and multiple times, otherwise there will be problems of incomplete separation and poor separation effect.

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