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Tanya W avatar image
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Tanya W asked tannerp commented

Loading and Unloading

Hello,

I am still new at this and am really struggling how to even do this. The below model I have attached has 3 operators that work at the end of the line. I need a operator to load 150 pieces on to the PS2 - PS4 and than go to the other end and pack than when the machine gets down to 15 pieces it signals him to go around and fill the machine back up. I have tried to do it with queues but he continues to load the machine and does not pack?

I attached my model.


Decouple All - New Scenario_autosave.fsm

FlexSim 20.1.1
operatoroperator assignmentoperator task sequenceoperator and resourceoperator several tasks
decouple-all-new-scenario-autosave.fsm (1.3 MiB)
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tannerp avatar image tannerp commented ·

Hi @Tanya W, were my comments helpful. If so, please click "Accept" on the answer. Otherwise, feel free to comment back with an update on this question. Thanks!

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tannerp answered tannerp commented

@Tanya W,

Assuming I understood the process you described correctly, I think I've added some logic that will do what you're hoping. I created a new TaskExecuter process flow that is primarily responsible for the 3 operators you described. It uses Pull from List and Load/Unload sequences to handle all the loading and unloading. The lists are partitioned according to the operator, so that each operator is only handling one of the PS group processors.

It also uses Decide activities that determine whether the operator has loaded 150+ pieces or if the machine's content is at or below 15.

It seems to work to me, but take a look at let me know what questions you have, if any.

tanya loading and unloading help.fsm


te-process-flow-tanya.png (31.6 KiB)
count-loaded-items.png (9.5 KiB)
tanya-loading-and-unloading-help.fsm (1.3 MiB)
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Tanya W avatar image Tanya W commented ·
Sorry it took me so long to get back to you and still trying to match what is going on today on the floor. The Operator cannot let the machine run dry but still needs to pack so they need to load the machine in a batch of 150 and it take 10 seconds and then walk away to pack and come back before the machine runs dry. I been really struggling to make it work.
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Tanya W avatar image Tanya W commented ·
I think the issue is that an operator handles more than one part at a time they pick up 20 parts and than loads and does the same think on the unload. Can you have a operator pick more than one item off of a list @tanner.p
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tannerp avatar image tannerp Tanya W commented ·

@Tanya W,

Sorry for the slow reply. You can pull and move more than one item off a list. I updated your model to reflect this. I like to add a sub-flow activity that handles the moving of the array of 20 items. It's set up to run the number that is pulled in the Pull from List activity. Let me know if you have questions about how this works.

Hope this helps!

tanya-loading-and-unloading-help_1.fsm

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tanya-loading-and-unloading-help-1.fsm (1.3 MiB)