Time differences between Process Time and Staytime in Conveyor Stations.

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Alex OA asked Mar 25 2022 at 9:21 AM Alex OA commented Mar 28 2022 at 1:12 PM

Time differences between Process Time and Staytime in Conveyor Stations.

Hello,

I am designing a conveyor with many differents stations. I just realised that the Process Time doesn't match with the Staytime that we see in the dashboard. As an example, the station SP5_2 has a process time of 48+4 seconds and the staytime seems to be 64 seconds.

I assume there is another time value that I am not taking into account. How can I assure that the pallet stops in the station only for the 48+4 processing seconds?

Thank you.

Software Version:

FlexSim 22.0.1

conveyorsystem processtime conveyor station

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Answer 1 · 2022-03-25T14:55:42Z

Jason Lightfoot answered Mar 25 2022 at 2:55 PM Alex OA commented Mar 28 2022 at 1:12 PM

The pallet is realeased after 52 seconds correctly, but then it has to wait for a dog to arrive.

eg:

734.12 Arrive at station
786.12 Process finishes at station
798.xx Next dog arrives.

That means it's there for ~64 seconds.

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Alex OA commented · Mar 28 2022 at 6:56 AM

Hi Jason,

Thanks for your answer. What is exactly a dog? The problem here is that in the real life conveyor, pallets move "one-by-one" (each position has 1.8m). So the pallet moves once the next conveyor piece is free.

If I remove the dog this distance is not respected and the pallets move all together. Is there any way that I could keep this distance while avoiding to affect the station's process time?

Thanks!

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Jason Lightfoot ♦♦ Alex OA commented · Mar 28 2022 at 11:46 AM

The power and free dog is like a hook on a chain that is travelling around the conveyor. When it finds an item that can move it engages with the item and pulls it along. When the item cannot move it disengages and continues without an item (usually).

If you're just modelling an indexing conveyor then you can do that using the conveyor parameters:

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1648468003869.png (9.5 KiB)

Alex OA Jason Lightfoot ♦♦ commented · Mar 28 2022 at 1:12 PM

Brilliant, thank you.

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