Shulou(Shulou.com)11/24 Report--

The original title: "what kind of machine is this? If you see something that is not pleasing to the eye, you will bounce off directly, just like you have eyes. "

A friend sent such a moving picture to the editor.

It makes people wonder, how on earth does the machine pick the cyan ones?

The editor studied it, and we have to start with rice.

Rice is one of the traditional staples of the Chinese people, but if you want to eat high-quality rice without impurities, you need to go through numerous repeated screening.

I still remember that when we were young, we would occasionally be scratched to our teeth by pebbles in rice, because the rice we ate at that time was self-sufficient, from raising seedlings, transplanting seedlings to harvesting, and beating rice was done in person. The last important link is sieving rice.

After the rice is beaten into rice, there will still be a lot of sundries such as rice husk, rice bran and pebbles, so it is necessary to screen the rice again before cooking and use a round bamboo dustpan to winnow out the impurities repeatedly.

Every time I see the skilled movements of adults, I can easily select clean rice with a sieve and a bump. I want to have a try, but basically I end up in failure.

Although this traditional method of screening impurities can remove most of the impurities, it is not clean and thorough, and the efficiency is very low. You will find that the rice you buy now is not only the same size, but also will no longer have impurities such as pebbles. This is because professional screening equipment such as a color sorter is now used.

1. Color sorter is a kind of professional rapid screening and sorting equipment, which is mainly separated and screened by the different characteristics of the materials that need to be screened under the irradiation of optical equipment.

The color sorter has many advantages, such as high sorting efficiency, accurate classification, good product quality and low damage rate.

Because of its excellent performance and efficiency, it is widely used in agriculture and industry, especially the screening effect of some agricultural products is very good.

2. The development of color sorter humans have been looking for ways to screen materials. In the earliest days, people used their eyes and hands to find all kinds of impurities in materials.

Later, people know that different materials have different densities. By dropping materials of different densities from high places or shaking them left and right, materials of the same density can fall together, so impurities can be screened out; for example, the density of pebbles is larger than that of grain husks, and the inertia of the sieve rice is greater when the rice sieve vibrates. The pebbles are gradually separated to the most edge of the rice sieve by shaking the rice sieve many times. Similarly, windmills are screened on the basis of different material density and different distances moved by the wind when falling.

In the 1930s, with the development of optical technology, British and American companies successively developed color sorters. Although the screening efficiency has been greatly improved, this color sorter can only screen black and white colors. Therefore, it is only used in the rice industry, but not widely used and promoted.

In the 1970s, with the progress of optical technology in Japan and South Korea, as well as the market demand for color sorters, Japan and South Korea have developed modern color sorters and pushed them to the market.

With the rapid development of modern agriculture, the demand for intelligent machines with high efficiency such as color sorting machine is increasing, and color sorting machine has also ushered in high-speed development and wide application.

Now, the color sorter has also begun to apply artificial intelligence, color three-dimensional space, high-speed magnetic levitation spray and other new technologies, and the screening accuracy of the color sorter is becoming higher and higher.

3. The principle of color sorter the color sorter is mainly composed of feeding system, optical sorting device, control system, lighting system and gas path system.

When the material enters the machine through the hopper or conveyor belt, it is evenly distributed to the material trough through the vibration of the vibrator, and the selected material will accelerate down along the trough to the sorting room, which is illuminated by light in the sorting room. let the image sensor get the color information of the material accurately.

The sensor compares the detected color with the set color, and when the color signal is out of the set range, it will be judged as a non-conforming product.

After receiving the message, the control system accurately delays, and when the target material reaches the central position of the injection, it drives the solenoid valve to eject high-pressure airflow, thus blowing the unqualified material into the scrap box, and the qualified material will fall into the material box naturally.

At the same time, it is also equipped with infrared lighting, the material is scanned by the infrared light when passing through, and the material can be identified according to the shape and material, and the image sensor and the infrared lamp cooperate with each other, so that the material can be screened according to the color. It can also be based on the shape and material, thus greatly improving the ability of the color sorter to screen materials.

There are also some larger fruits and vegetables, the use of high-pressure air flow can not be sorted efficiently, which requires the use of ejection plates to achieve sorting.

The scanning and identification process is the same as the former, except that the air flow ejected by the high-pressure air pipe is not blown out directly, but enters the driving cylinder, pushes the cylinder piston, and then drives the ejection plate to eject it. The ejection plate, like the finger of God, can be ejected quickly and accurately, so that it can be sorted accurately.

With the progress of society and the increase of labor costs, many fields that rely on manual sorting are the development direction of the color selection industry in the future; the color selection industry will develop rapidly with the continuous progress of social productive forces, and the color sorting machine will also infiltrate into various industries and benefit every aspect of our lives.

For more information on mechanical principles and popular science, please follow the manufacturing principle of Wechat official account.

The picture in this article is taken from Youtube "SATAKE Chute Type Optical Sorter Slow Motion Video < English ver. >"

Gif is intercepted from Youtube "CIMBRIA SEA CHROME Electronic Sorting-advanced vision-based electronic sorter", "How a Green Tomato Sorter Works _ The Henry Ford's Innovation Nation" and "Color Sorter Working Principle Color Sorting Machine".

This article comes from the official account of Wechat: manufacturing principles (ID:zhizaoyuanli), author:-

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