The food we eat every day can be roughly divided into powder, granules and liquid. For this, our packaging machine is also divided into powder packaging machine, granule packing machine and liquid packaging machine. Let's look at the food packaging machine of powder type. Composition and working principle.
one. component
1. The power part is the driving force of mechanical work. In modern industrial production, it is usually an electric motor. In some cases, it also uses a motor or other power machine.
2. The transmission mechanism plays the role of transmitting power and movement. It is mainly composed of transmission parts, such as gears, cams, sprockets (chains), belts, screws, worm gears, etc. It can be designed as continuous, intermittent or variable speed according to requirements. The persuasion of the shirt.
3. Control system. In the packaging machinery, from the power output, the operation of the transmission mechanism, the action of the working actuator, and the coordinated cycle between the various mechanisms, the control system commands and controls. The control method of the modern packaging machinery, in addition to the mechanical type, There are electric control, pneumatic control, photoelectric control, electronic control and jet control. The selection of control methods generally depends on the level of industrialization and production scale. However, many countries still adopt control methods that are still mostly electromechanical.
4. The fuselage is the rigid skeleton of the whole packaging machine. Almost all the hair and the mechanism are installed in its work surface or inside. Therefore, the fuselage must have sufficient rigidity and reliable stability. The center of gravity must be at the lowest state. However, it should also pay attention to reducing the support of the machine and reducing the floor space.
5. Packaging work execution agency. The packaging machine's packaging action is done by the working mechanism, which is the core part of the packaging action. Most of the more complex packaging actions are implemented by rigorous moving mechanical components or robots, which are often the synthesis of mechanical, electrical or photoelectric effect components. Application and law.
two. working principle
1. The electrical part of the current automatic food packaging machine generally consists of the following:
The main control circuit consists of a frequency converter and a programmable controller (PLC) to form a control core; the temperature control circuit is composed of an intelligent temperature control table, a solid state relay, a thermocouple element, etc. The temperature control is precise, the display is intuitive, and the setting is convenient; Switch, electromagnetic proximity sensor, etc. to achieve multi-point tracking and detection;
Thanks to the frequency conversion speed regulation, the chain drive is greatly reduced, the stability and reliability of the machine operation are improved, and the noise and vibration rate of the machine operation are reduced. It ensures the high efficiency, low loss, low dust and automatic detection of the packaging machine.
Although the transmission system used in the powder food packaging machine is relatively simple in function, it has high requirements on the dynamic performance of the transmission, and the system requires fast dynamic following performance and high steady speed precision. Therefore, the dynamic technical specifications of the inverter must be considered, and high-performance inverters can be selected to meet the requirements.
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