Unable to move flow items onto vertical conveyor

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question

Saiprasad A asked Apr 17, '22 Saiprasad A commented Apr 19, '22

Unable to move flow items onto vertical conveyor

Hi,

I am trying to simulate a rack with shuttles and a vertical conveyor at the end of it. I have attached an image and my model for your reference.

iteration1.fsm

I am facing the following issues:

1) For the vertical conveyor, I am unable to rotate the conveyor objects (trays) so that they appear to be parallel with the main floor. I have tried to edit the 3d object but by rotating it along different axes but the conveyor object does not seem to rotate.

2) I have created a logic to move the item from the task executor to vertical conveyor object when an object is available between the decision points of the vertical conveyor. But the flow item just disappears after move object command in process flow.

I would be very grateful if anyone can help me out in resolving these issues.

Thank you!

Software Version:

FlexSim 19.2.4

conveyor agv shuttle vertical conveyor

1650205634867.png (394.4 KiB)

iteration1.fsm (60.6 KiB)

Answer 1 · 2022-04-18T22:30:24Z

Ryan Clark answered Apr 18, '22 Saiprasad A commented Apr 19, '22

Hi @Saiprasad A,

I made some modifications to your model to address the issues you mentioned in your question.

I modified the properties of the conveyor entry transfer to change the "Item Orientation" and was able to get the trays to have the desired orientation. I also changed the transfers within the conveyors to avoid them rotating, which I thought looked more realistic. I deselected the option to "Do Smooth Transitions."
I updated your Process Flow logic to use an Unload instead of a Move Object activity. I also modified your List logic to have it push "token.vertical" to the list instead of just "token." I also adjusted the logic to use a Wait for Event instead of a separate Event-Triggered Source. And that all seems to be working now.

I hope this is helpful! Let us know if you have further questions!

iteration1-rc_1.fsm

1650320792154.png (29.1 KiB)

1650320876122.png (23.2 KiB)

iteration1-rc-1.fsm (59.5 KiB)

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Saiprasad A commented · Apr 19, 2022 at 04:20 AM

@Ryan Clark thank you so much for the help. Everything works as I wanted it to be.

I have one question. When I try to implement your suggestions in my current model, the way flow items are moved from AGV to vertical conveyor is different. In your attached model, the flow item gets moved instantly to the vertical conveyor. Whereas, in the following attached model, the AGV travels to the vertical conveyor for unloading and back. Could you please tell me why is this?

iteration1.fsm

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iteration1.fsm (83.4 KiB)

Jason Lightfoot ♦ Saiprasad A commented · Apr 19, 2022 at 10:31 AM

Ryan had turned off offset travel (and rotating) on the AGV:

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1650364266524.png (2.7 KiB)

Saiprasad A Jason Lightfoot ♦ commented · Apr 19, 2022 at 01:24 PM

@Jason Lightfoot Thank you

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