Automatic Cutting Palmyra Seeds Machine
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Abstract
Automatic Cutting Palmyra Seeds machine has been developed with the aim for ease of use and of not requiring constant attention in operation. The user simply places the palmyra seed into the holding position and presses the button only once. After that, the machine proceeds automatically to a seed locking process, a seed size measurement, a seed movement towards cutting, cutting process and finally unlocks the seeds. The palmyra seeds can be picked up and gently split by a machete. The automation system is controlled by a microcontroller. Sensors for measuring the grain size and the displacement of machine components are also built. In the experiment of cutting 50 seeds, each step of the work process was tested and adjusted to achieve the best results. The results showed that the machine was able to work efficiently with 100% dissection accuracy. An average incision time was 3 minutes 10 seconds per seed and the power consumption was 0.19 kW-hour. These results are comparable to Cutting Palmyra Seeds machines in earlier research. This present research is highlighted by applications in which the user controls the machine for only 5 seconds per seed and is able to control dozens of machines simultaneously. Furthermore, an engineering economic analysis showed that, if one user controls the operation of two machines at the same time, the machine cost was on average THB 1.08/seed, the payback period was on 5.4 months.
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