Design and development of vegetable cutting machine control circuit board

At present, the functions of the existing vegetable cutting machines in China are relatively single, and the volume of imported vegetable cutting machines is too large and the price is high. Therefore, it is difficult for many farmers and small businesses engaged in individual production to find a multifunctional vegetable cutter that meets their needs. It can be seen from the above factors that it has become the general trend to design a small, convenient, efficient, low-consumption, and affordable multi-functional vegetable cutter.

1. The working principle of the multi-function vegetable cutter

Aiming at the related needs of small businesses and individual farmers, this paper designs a multifunctional vegetable cutting machine with a small volume. When the vegetable cutting machine is in operation, the tuber vegetables are placed in the feeding barrel for feeding treatment. When the vegetables reach the predetermined thickness, they will fall down and be caught by the tray, thus completing the feeding procedure. After that, the motor will start automatically, and the transmission system will be used to transmit the power to the working shaft where the cutter is located, and at the same time, the cutter will be rotated. At this time, the tray and the blade form a state of reverse rotation, which is convenient for material cutting. After the feeding process is over, the cutting knife can be rotated and sliced again. After cutting, there will be a rotating tray with convex points to hold up the vegetable slices and put them into the discharge cylinder. The bottom end of the discharge cylinder is inclined, which is convenient for the vegetables to fall out. The vegetables fall onto the press rollers after being discharged from the discharge drum. At this time, the pressing roller rotates continuously, and the sliced vegetables can be cut into strips. When the strip-shaped vegetables pass through the discharge port, the distance between the blade and the tray can be adjusted to control the thickness of the vegetable slices.

2. Structural design and function development of the multifunctional vegetable cutter

The structure of this multifunctional vegetable cutting machine includes a feeding device, a cutting device, a discharge cylinder, a motor, a pressing roller, a belt drive system, a pulley, and the like. According to relevant experiments, the belt-shaped rotating structure is arranged above the feeding hopper of the vegetable cutter, so the feeding hopper needs to be designed as a trapezoid, and it should be kept inclined at about 42° to facilitate feeding. The outlet, feeding hopper and tray are all made of Q235 cold-rolled galvanized steel sheet, which is clean and rust-proof, and is suitable for processing vegetables.

When vegetables are sliced, the following situations are usually encountered: the slices are thin and light; the vegetables contain too much water and stick to the blade; the vegetables are stuck on the chassis and are not easy to fall; the blades are installed in the blade tray. Combining these factors, this design has been improved for the blade. First the number of scrapers was increased to push the vegetables off the chassis. Then make the blade into a hollow groove shape to ensure that the vegetables are not easy to stick to the blade. Finally, the bolt hole base is thickened to improve the strength and stability of the blade. After consulting professional information, this design determines the diameter of the two holes of the vegetable cutter as 8mm, and installs two GB5781 bolts and two GB41M6 bolts. The cutting knife is made of stainless steel 4cr13 and has been quenched. This not only ensures that the blade has a certain hardness, but also improves the toughness of the blade. The function of the tray can be summarized as three points, the first is to support the vegetable raw materials, the second is to help the scraper to throw the vegetables into the discharge barrel, the third is to rotate in the opposite direction with the knife to ensure that the vegetables can be cut, and at the same time Increase cutting power. Therefore, the tray thickness is set to 10 mm, the diameter d is 600 mm, and the rotation speed is 3.68 m/s per second.

The diameter of the discharge cylinder is set to 20cm, and the raw materials used are the same as the devices such as the discharge port and the feeding hopper. The bottom of the discharge cylinder is transformed into an inclined surface with a slope of about 25°, which is conducive to the smooth falling of vegetables. The outlet of the discharge cylinder needs to be slightly larger, otherwise the vegetables will pile up during the discharge process, making it difficult to discharge. Two bead rollers need to be installed at the bottom of the discharge cylinder, and the size and material of these two rollers must be exactly the same. One of the rollers is in a fixed state, and the other roller is rotated by the transmission belt, which is convenient for pressing the strips.

As the tire turns, the power from the electric motor is transferred to the working shaft. The belt drive system is mainly composed of three parts, namely the V-shaped drive belt, the main pulley and the slave pulley. The rotation speed of the main pulley is relatively slow, only 3.6m per second, and the rotation speed of the slave pulley is less than 2.5m per second. Therefore, the material is gray cast iron with a hardness grade of HT150.

Regarding the structural design of the pulley, the standard diameter of the main pulley is 71mm, and the diameter of the shaft matching it is 24mm. Therefore, the main pulley uses a solid structure. The diameter of the slave pulley is 100mm, so the web structure is selected. When using this vegetable cutter, first adjust the distance between the blade and the tray, so as to control the thickness of the vegetable slices. If it is a simple slice, keep the pressure roller in an open state. If shredding, embossing, etc. are required, the pressing rollers must be closed. After turning on the power, put the washed vegetables into the material barrel, and place a container at its lower end to hold the cut vegetables. After the cutting work is finished, the power can be turned off directly, and the operation is very simple.

Summarize

This new multifunctional vegetable cutter has the advantages of small size, low energy consumption, easy operation, and relatively cheap price. The main principle is to use the rotation of the tray and the blade, and the opening and closing of the pressing roller to slice vegetables. , cutting, embossing and other processing. The multifunctional vegetable cutting machine is suitable for individual farmers and small food enterprises, etc., and can bring more convenience to people.

The above is an example of the design and development of vegetable cutting machine introduced by Shenzhen Zuchuang Microelectronics Co., Ltd. for you. If you have a need for the development of a vegetable cutter circuit control solution, you can rest assured to entrust it to us. We represent a variety of single-chip microcomputers, voice chips, dual-mode Bluetooth ICs, and wifi chips. Brands include Songhan MCU, Yingguang MCU, Jerry Bluetooth, Ankai Bluetooth, Allwinner, and Realtek. Our technical services include: PCB design, MCU development, Bluetooth solution, software and hardware custom development, APP development, small program development, WeChat official account development, etc. It can also undertake the design of intelligent electronic products, the development of living appliances, the research and development of beauty equipment, the application of Internet of things platform, the smart home control system, the development of TWS earphones, Bluetooth earphone speakers, the development of children's educational toys, the design of electronic education products, etc.