Inbound palletizing operation

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Niket M asked Apr 06 2025 at 3:55 AM Niket M commented Apr 08 2025 at 2:26 PM

Inbound palletizing operation

I am creating a model to simulate the inbound palletizing loop. Here are the requirements

Stack 20-27 cartons on the pallet based on inbound carton label
Once pallet is full, move it away to a different queue

I could not figure out how to make operators unload cartons to the pallet inside the queue by using standard prompts so started using process flow. However, in the process flow, I am trying to leverage the subprocess to do the same action (once carton hits the DP, move it to the corresponding queue by using the nearest operator). I think there is an easier way to do this, and it's been 3-4 years since I have done some development. Can someone help out with this?

Inbound Pallet Loop.fsm

Software Version:

FlexSim 22.1.4

inbound

inbound-pallet-loop.fsm (90.9 KiB)

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Answer 1 · 2025-04-08T06:25:06Z

Felix Möhlmann answered Apr 08 2025 at 6:25 AM Niket M commented Apr 08 2025 at 2:26 PM

You could alter the transport task sequence in the On Receive Task Sequence trigger of the operators. First check if it is a transport task sequence (5 tasks total in the order travel, load, break, travel, unload). Then change the unload destination.

In the attached model I also changed the operators' load time to 0 and instead add a delay task to the task sequence after the load. Otherwise the boxes often times move out of range during the load time.

Note that fixed resources like the queue store how many inputs are pending and will stop receiving more items if that number plus their content reaches the maximum capacity. Normally the unload task would 'inform' them that the transport task is now complete. But since we override the destination this has to happen manually. I use the On Unload trigger for this.

inbound-pallet-loop-1.fsm

You could in theory make use of this to have the queue stop receiving items when the pallet is full and only 'complete' the transports once the next pallet is available.

inbound-pallet-loop-1.fsm (83.7 KiB)

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