Picking items from conveyor by robots

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juraj asked May 9, '24 Jeanette F commented May 28, '24

Picking items from conveyor by robots

Hi, i create model shown at this picture, its about 2 robots per conveyor picking and unloading parts into queue, i control the items by setting their item type in source on creation then sent to the queue from where they are going throgh few procesess. I run on problem that after some time i have only part item.type1 so second robot in lane does not get items to pick. At the beginning of simulations parts are going into process in rotations and then just 1type.

robots_picking_from_conveyor.fsm

Thank you for your answers

Software Version:

FlexSim 22.2.0

conveyor robot picking 3d model

1715251911375.png (213.0 KiB)

robots-picking-from-conveyor.fsm (99.0 KiB)

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Jeanette F ♦♦ commented · May 28 at 04:43 PM

Hi @juraj, was Kavika F's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

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Answer 1 · 2024-05-20T16:56:12Z

Kavika F answered May 20, '24

Hey @Juraj, the issue you're seeing is because of the way you've setup your Sources. They both send a box to the Queue at the same time; however, when the queue gets full, they both can't put in boxes. It seems that the Source producing Type1 wins the timing race between them, so that's why the number of Type 2 boxes slowly decreases until there are none left.

One solution would be to use an Arrival Schedule on the Source:

Your schedule could look like this:

1716224168753.png (7.6 KiB)

1716224094544.png (10.1 KiB)

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