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shengwei Z2 avatar image
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shengwei Z2 Suspended asked Joerg Vogel edited

how this ten-to-one conveyor-elevator can be made ?

I have trouble in making multi-layered conveyors linking to one layer conveyor by the conveyor-elevator,hope somebody help me figure out this problem.

FlexSim 19.0.0
rackelevatormodeling
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Joerg Vogel avatar image Joerg Vogel commented ·

Do it in FlexSim 19.2!

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shengwei Z2 avatar image shengwei Z2 Joerg Vogel commented ·

have try it,but doesn't work

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Joerg Vogel answered Joerg Vogel edited

You add additional queues at the exit of the conveyors. You close the input of the queues. You create a tasksequence to transport an item by the elevator.

The OnLoad Trigger of the elevator moves items to a queue (green), that is connected to the conveyor on the elevator. The exit of the elevator is connected to annother queue (red). The input of this queue is generally closed. By this the item is going to stay at the end of the elevator. The tasksequence will transfer from the item any object to the destination.

Conveyor, both queues (green, red) are moved into the elevator. The animated gif shows you the queues are moving up and down with the elevator. You can set the queue and their contents invisible later. Then you won't see them anymore.

conveyor-on-elevator.fsm


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shengwei Z2 avatar image shengwei Z2 commented ·

thank you for your idea,i'm almost making it ,conveyor-elevator.fsm,how can i get two items into elevator one time ? because the elevator have more than one slot.

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Joerg Vogel avatar image Joerg Vogel shengwei Z2 commented ·

@shengwei Z2, I think, I answered the question without your additional comment. If that is the fact, then please accept the answer. Your comment is a total different question, because you want a logic that releases two items at a time and the elevator has the capacity to load them. Such logic implements a delay time matrix that allows the elevator to transfer items from different levels without a collision of the items depending on the level difference of the stored items.

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Joerg Vogel avatar image Joerg Vogel shengwei Z2 commented ·

The conveyor object can only receive one item per time. If you insert a queue between the rack and the conveyor to the exit, FlexSim is able to send more items at once. You must create a logic that's limit the items to enter the elevator, because the moveobject command reduces the content dynamically. I have set the max content of the additional queue lower to limit the items in transfer.

@shengwei Z2

My model is a variant of your attached version. I replaced the stop elevator method by adding utilize tasks to the transport tasksequence as the third and last rank. The 1st utilize task lets the elevator stay at the loading location. The second utlize task holds the elevator car at level of the exit conveyor object. Both utilize tasks are freed by photoeyes. One is on the elevator conveyor, the other is on the exit conveyor.

conveyor-load-items.fsm

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