CN-117859787-B - Automatic screening machine is used in whitebait processing

CN117859787BCN 117859787 BCN117859787 BCN 117859787BCN-117859787-B

Abstract

The invention discloses an automatic screening machine for whitebait processing, which belongs to the technical field of whitebait processing and comprises a feeding barrel, wherein the top of the feeding barrel is provided with an opening, the top of the feeding barrel is communicated with a first water pipe, the feeding barrel is communicated with a screening device, the screening device comprises a first conveying pipe, the first conveying pipe is communicated with the feeding barrel, one end of the first conveying pipe, which is far away from the feeding barrel, is communicated with a freshness discriminator, one end of the freshness discriminator, which is far away from the first conveying pipe, is communicated with a second conveying pipe, the freshness discriminator comprises a shell, a controller, a camera, a light source and a power supply are arranged in the shell, the camera is positioned on one side, which is close to the top of the first conveying pipe, the light source is positioned on one side, which is close to the bottom of the first conveying pipe, a first valve is arranged in the first conveying pipe, a second valve is arranged at the position, which is communicated with the freshness discriminator, one side of the shell is provided with a discharge port, and a third valve is arranged in the discharge port. By adopting the technical scheme of the invention, the freshness can be screened through the whitebait white area proportion.

Inventors

SHI JINJIN
WANG CHUQING
YAN XIN
GE HUI
WU LEI
ZHU HAICHEN
WANG YANPING

Assignees

江苏省海洋水产研究所

Dates

Publication Date: 20260508
Application Date: 20240103

Claims (8)

1. The automatic screening machine for whitebait processing is characterized by comprising a feeding barrel, wherein the top of the feeding barrel is provided with an opening, the top of the feeding barrel is communicated with a first water pipe, and the feeding barrel is communicated with a screening device; The screening device comprises a first conveying pipe, the first conveying pipe is communicated with the feeding barrel, one end, far away from the feeding barrel, of the first conveying pipe is communicated with a freshness identifier, and one end, far away from the first conveying pipe, of the freshness identifier is communicated with a second conveying pipe; The freshness discriminator comprises a casing, a controller, a camera, a light source and a power supply are arranged in the casing, the camera is positioned on one side of the casing, which is close to the top of the first conveying pipe, the light source is positioned on one side of the casing, which is close to the bottom of the first conveying pipe, waterproof transparent plates are arranged on the camera and the light source, the light source is a colored light source, a first valve is arranged in the first conveying pipe, a second valve is arranged at the position, which is communicated with the freshness discriminator, of the second conveying pipe, a discharge port is arranged on one side of the casing, and a third valve is arranged in the discharge port; The controller is used for acquiring an image shot by the camera, judging the area proportion of a white area in the image, opening the third valve to close the second valve when the area proportion of the white area is larger than a preset range, and opening the second valve to close the third valve when the area proportion of the white area is smaller than the preset range.
2. The automatic screening machine for whitebait processing according to claim 1, wherein a plurality of screens are distributed in the feeding barrel along the height direction, the mesh area of the screens is reduced along with the reduction of the installation height, the screens divide the feeding barrel into a plurality of screening layers, and the screening layers are all communicated with the screening device.
3. The automatic screening machine for whitebait processing according to claim 2, wherein the side of the screening device away from the feeding barrel is lower than the side close to the feeding barrel.
4. The automatic screening machine for whitebait processing according to claim 3, wherein the cavities of the inner pipelines of the first conveying pipe and the second conveying pipe are inverted triangles.
5. The automatic screening machine for whitebait processing according to claim 4, wherein the side wall of the first transportation pipe is communicated with the second water pipe.
6. The automatic screening machine for whitebait processing according to claim 5, wherein the third valve is of a flap valve structure, and a plurality of filter holes are formed in a flap valve of the third valve.
7. The automatic screening machine for whitebait processing according to claim 6, wherein the first conveying pipe is internally provided with a laser correlation photoelectric switch.
8. The automatic screening machine for whitebait processing according to claim 7, wherein the side wall of the second conveying pipe is provided with a semiconductor refrigerating sheet.

Description

Automatic screening machine is used in whitebait processing Technical Field The invention belongs to the technical field of whitebait processing, and particularly relates to an automatic screening machine for whitebait processing. Background China is the origin and main distribution area of world whitebait (abbreviation of whitebait SALANGIDAE), 15 of 17 kinds of whitebait in the world are distributed in the eastern coastal region of china (including the Yangtze river basin) and the estuary of each large water system, 6 kinds of special species, such as the bead lake whitebait of the bead lake part in the Poyang county of the Poyang lake, are the smallest individual species among the known whitebait species, but have higher nutrient content than the big whitebait. The whitebait has high nutritive value and economic value, and is an important economic fish. The whitebait has short life cycle, discrete generation and strong fertility and colonisation capability. As a typical r-countermeasure, whitebait is sensitive to environmental changes and reacts rapidly, and the population grows rapidly, so that rich diversity of biological and ecological characteristics such as feeding habit, growth, propagation and the like is formed in a long evolution process. In the prior art, the whitebait with different sizes is screened through the screen plate, so that the whitebait is conveniently classified, but the internal oxygen storage amount of the whitebait is less, and the fish gill is smaller, so that the fish gill is difficult to keep alive due to the small oxygen amount exchanged by the fish gill or is easy to be dried and necrotized by air, and dead and stale whitebait is required to be picked out in the processing, so that the freshness of the whitebait is ensured. Disclosure of Invention In order to solve the problems, an object of the present invention is to provide an automatic screening machine for whitebait processing, which can screen freshness by whitebait white area ratio. In order to achieve the aim, the automatic screening machine for whitebait processing comprises a feeding barrel, wherein the top of the feeding barrel is provided with an opening, the top of the feeding barrel is communicated with a first water pipe, and the feeding barrel is communicated with a screening device; The screening device comprises a first conveying pipe, the first conveying pipe is communicated with the feeding barrel, one end, far away from the feeding barrel, of the first conveying pipe is communicated with a freshness identifier, and one end, far away from the first conveying pipe, of the freshness identifier is communicated with a second conveying pipe; The freshness discriminator comprises a casing, a controller, a camera, a light source and a power supply are arranged in the casing, the camera is positioned on one side of the casing, which is close to the top of the first conveying pipe, the light source is positioned on one side of the casing, which is close to the bottom of the first conveying pipe, waterproof transparent plates are arranged on the camera and the light source, the light source is a colored light source, a first valve is arranged in the first conveying pipe, a second valve is arranged at the position, which is communicated with the freshness discriminator, of the second conveying pipe, a discharge port is arranged on one side of the casing, and a third valve is arranged in the discharge port; The controller is used for acquiring an image shot by the camera, judging the area proportion of a white area in the image, opening the third valve to close the second valve when the area proportion of the white area is larger than a preset range, and opening the second valve to close the third valve when the area proportion of the white area is smaller than the preset range. After the scheme is adopted, the beneficial effects that a user can add whitebait through the feeding barrel, the first water pipe can continuously inject water into the feeding barrel, and the water level in the feeding barrel is kept. When the first valve is opened, the feeding barrel can flow into the first conveying pipe and is mixed with the whitebait, and when the whitebait enters, the first valve is closed to prevent other whitebait from rusing in. The light source irradiates from the bottom of the whitebait, and the body is semitransparent when the whitebait is not dead, and the protein is denatured in 1h after death due to disorder of an in-vivo regulation mechanism, and the original semitransparent gradual change is used as snow white, so that the color ratio under the colored light source can reflect whether the whitebait is fresh or not. When the area ratio of the white area is detected to be larger than the preset range, the freshness of the whitebait is not up to standard, the third valve is opened, the second valve is closed, the whitebait is discharged at the discharge port under the action of water flow, and when the area ra