Automatic weighing system for fruits and vegetables

Abstract

The invention relates to an automatic weighing system for fruits and vegetables. The automatic weighing system comprises a material lifting system, an automatic material distributing system, a control system and a material discharging system, wherein the material lifting system is used for conveying the materials to be weighed to the automatic material distributing system; the automatic material distributing system comprises a material distributing board and two sets of weighing and screening systems connected with the material distributing board; each set of weighing and screening systems comprises a material distributing slope, a first conveyor belt connected with the material distributing slope, a weighing hopper for receiving and weighing the materials on the first conveyor belt, a swing arm for controlling the supplying of the materials on the weighing hopper, and a second conveyor belt for conveying the materials in the weighing hopper to the material discharging system; the control system is used for controlling the motion of the first conveyor belt, the motion of the weighing hopper and the motion of the swing arm in the automatic material distributing system; and the material discharging system is used for transferring the materials conveyed by the second conveyor belt to a packaging system. According to the automatic weighing system disclosed by the invention, fully-automatic feeding, weighing and screening can be achieved, through controlling a weighing process and a screening process through the control system, the production efficiency is improved, and the labor cost is reduced.

Description

technical field [0001] The invention relates to the field of food processing machinery, in particular to an automatic weighing system for fruits and vegetables. Background technique [0002] The automatic screening and packaging of food is an important technology to realize the mechanized production of food and improve the efficiency of food processing. At present, there are many kinds of weighed and packaged vegetables and fruits on the shelves of supermarkets. These products usually include a package Three or five uniform varieties of vegetables or fruits in the box, although the size of each vegetable and fruit is different, but the total quality is usually controlled within a uniform range, however, such products cannot be fully automated at present. The main reason is that it is limited by the following technical bottlenecks: [0003] 1. Different varieties of fruits and vegetables, such as large tomatoes and cherry tomatoes, have great differences in quality and volum...

AI Technical Summary

Problems solved by technology

[0002] The automatic screening and packaging of food is an important technology to realize the mechanized production of food and improve the efficiency of food processing. At present, there are many kinds of weighed and packaged vegetables and fruits on the shelves of supermarkets. These products usually include a package Three or five uniform varieties of vegetables or fruits in the box, although the size of each vegetable and fruit is different, but the total quality is usually controlled within a uniform range, however, such products cannot be fully automated at present. The main reason is that it is limited by the following technical bottlenecks:

[0003] 1. Different varieties of fruits and vegetables, such as large tomatoes and cherry tomatoes, have great differences in quality and volume. The feeding system on the packaging machine has a great difference in the identification of large and small tomatoes. The existing automatic weighing system is difficult to achieve Continuous feeding of different specifications, in short, means that a machine can only realize the automatic weighing of fruits and vegetables of one size, and cannot realize the function of continuously weighing multiple complex materials in one line

[0004] 2. The current weighing system mostly uses platform-type scales, with fewer weighing times and a single weighing control method, so the weighing accuracy is low and the error is large

[0005] 3. During the feeding process, the feeding is controlled by the swing arm, and the round materials are easily squeezed or smashed, which makes the materials damaged during the weighing process and the material loss is high

[0006] 4. The feed of the weighing system needs to be manually screened and sorted, and automatic weighing cannot be realized

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