When a block of 10 photovoltaic cells reaches the end of the conveyor, it is turned over and placed in the buffer. Operating like this, the photovoltaic cells are closely located to each other when leaving the station, as if a soldered group of elements. The conveyor stops while the object is processed at the station, and then turns on so that the station accepts the next object. The belt type conveyor and the delay at the String soldering station help to display this soldering process as accurately as possible. In the model, for soldered objects, it might seem logical to create an agent of a new type, but this is impossible, since only one type of agent can exist on a conveyor line – in our case, SolarCell. In reality, at the String soldering station, new photovoltaic cells are soldered to the block of photovoltaic cells emerging from the station. Both stations process only one photovoltaic cell at a time (property Quantity = 1) and simultaneously load and unload agents by conveyor (the Loading property value is set to Simultaneous with unloading). The length of the stations - 0.2 meters - is the sum of the length of the photovoltaic cell and the distance to the cell following it. On the conveyor there are two stations - Cell sun simulation and test, with a delay of 1 second, and String soldering, the delay time for which is set by the solderingTime parameter. Properties of the solarCellConveyor element The width of the conveyor is 0.5 meters, the distance between the photovoltaic cells (gap) is 0.04 meters, and the speed is 0.2 m/s. The model uses a belt type conveyor ( Belt option in the Type property). To simulate a conveyor that transports photovoltaic cells between stations (small conveyor on the left above), we use the solarCellConveyor element (type Conveyor). Photovoltaic cell preparation conveyor (small conveyor) soldering cells together (String soldering station).testing on the sun simulator (Cell sun simulation and test processing station).Photovoltaic cells must be prepared for assembly. If you have already worked with the library, run AnyLogic and we are ready to go! If you are not familiar with the new library, we recommend you first read the previous posts in this series ( Conveyors and AGVs and transporters). Please note: this post is for those who want to understand the intricacies of modeling conveyor networks. It can also be launched on this page, directly from AnyLogic Cloud. This model can be found in the list of examples on the AnyLogic home page, in the Manufacturing section. Model statistics allow you to estimate the total utilization of the conveyor network and equipment, as well as the duration of the production cycle and production rates. The model shows the processes that prepare solar cells for solar panels and how the solar modules are manufactured. Using the Solar Panel Production Line model, we will explore the Material Handling Library and learn how to use Station element. It simplifies the modeling of production processes when it can be represented by a delay or the transition of an agent to a new state. To do this, AnyLogic uses the Station markup element. This allows you to reproduce production processes and account for the mechanical or manual processing time needed, working hours, and station scheduling. Included in the Material Handling Library is the ability to simulate the processing of items at stations on a conveyor network. It is the third in a series – the first two beginning with the basic functionality of the library and how to model conveyors and transporters. The Material Handling Library is a major part of AnyLogic and this ‘how-to’ explores how to get started with the library. See how simulation improves material handling in our whitepaper!
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