Is that possible if use the elevator or queue for carry the few woods ?

Question

question

Owen_liaw H asked Feb 15 2022 at 1:41 PM Owen_liaw H commented Feb 17 2022 at 4:09 AM

Is that possible if use the elevator or queue for carry the few woods ?

For the last figure, my problem is about how to use (elevator or queue) to carry the objects (woods), it will drop a bit (z-axis location) when new lines of wood is sorted to the certain locations by following the length (y-size).

Elevator or queue ? which one is suggested to use for this situation

Software Version:

FlexSim 19.0.0

elevator queue load

1644932125748.png (878.0 KiB)

1644932139715.png (879.3 KiB)

1644932172825.png (139.0 KiB)

1644932189457.png (165.0 KiB)

4.fsm (38.0 KiB)

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Answer 1 · 2022-02-15T23:11:17Z

Jeanette F answered Feb 15 2022 at 11:11 PM Owen_liaw H commented Feb 17 2022 at 4:09 AM

Hello @Owen_liaw H,

It would be best to use a queue. You will want to use triggers. I created an on entry trigger that checks to see if there is a complete line of flow items (6 items were in each row). If there are then the queue is dropped down.

int NewLine = 6; // number of flowitems per line in Queue
int Content = current.stats.content.value; //The number of flowitems in the Queue
if (Content%6 == 0){ // Check to see if there is a completed row of flowitems
   double x = current.location.x; // the Queue location in the x direction
   double y = current.location.y; // the Queue location in the y direction
   double z = current.location.z-item.size.z; // the Queue location in the z direction 
   //The Queue will be moved down in the z direction the distance of the flowitems z size.
   setloc(current, x, y, z); // Set the location for the Queue
}

You will also want an on reset trigger to reset the queues location.

You will see these changes implemented on the first queue in the model.

Model_JF (2).fsm

model-jf-2.fsm (38.3 KiB)

· 5

Owen_liaw H commented · Feb 16 2022 at 5:12 AM

Thank u for ur custom code, i still trying to understand the codes

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Jeanette F ♦♦ Owen_liaw H commented · Feb 17 2022 at 12:09 AM

I added comments to each line of code to try and help you understand it.

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Owen_liaw H Jeanette F ♦♦ commented · Feb 17 2022 at 4:09 AM

Yea, I understood already

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Owen_liaw H commented · Feb 16 2022 at 5:14 AM

I got other question about the stack at first queue, it had 12 items in low, but other queue don't have this problem

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1644988383814.png (176.3 KiB)

Jeanette F ♦♦ Owen_liaw H commented · Feb 17 2022 at 12:18 AM

This has to do with the logic the Queue uses to stack the items. To change this you will need to change Item Placement to Do Nothing. You will also need to incorporate a custom code for on entry trigger to place the flowitems how you would like.

I incorporated the default packing method in the on entry trigger. The code for the default packing method can be found if you go to toolbox, open the FlowItem Bin, select the pallet flow item, and then at the bottom of the window select edit packing method. Then you can select the script scroll next to the Default packing method to see the code that I copied over to the Queue.

Dropping Queue As It Fills.fsm

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1645056694373.png (12.7 KiB)

dropping-queue-as-it-fills.fsm (40.5 KiB)

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