The Pattern Recognition System uses a Radio Frequency Identification (RFI) tag embedded in the pattern to enable the mixer to recognize each individual pattern's requirements.The RFI tag itself is approximately 32mm long, 5mm diameter and can be positioned anywhere in the pattern impression or box frame. Situated close to the mixer is the read write antenna, which will read the RFI tag as soon as the tag enters the signal radius.Once the antenna reads the RFI tag, the information is passed to the PLC in the mixer control panel and the mixer starts the automatic mixing cycle. Firstly, the type of sand required is selected (new reclaim or blend), the mixer starts and mixes the required quantity of sand, near to the end of the pattern filling the compaction table will start and vibrate for the set time and frequency determined by the tag. The correct resin addition is selected as well as the necessary catalyst additions in order to achieve the selected strip time.As you do not require line of sight to read the RFI tag it could be drilled and sealed in the pattern thus eliminating the chance of mechanical damage or wear.Obviously, the main benefits of pattern recognition are to reduce the chances of human error, maximize mould-making efficiency, reduce costs and improve production record keeping.
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