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Krish S avatar image
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Krish S asked Krish S commented

Conveyor sending items preference

Hi,

I need to keep sending parts to 3 conveyors and they join in the same conveyance after transfer as shown in the flexsim file.

But most of the time, the last conveyor is blocked because there are parts in the conveyance from conveyor 1&2. Conveyor 3 will send parts only when all parts have left.


Is there a way to send parts one by one from each conveyor?

Conveyor Sending example.fsm

FlexSim 18.1.2
conveyorconveyorsystemflexsim 18.1.2
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1 Answer

Brandon Peterson avatar image
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Brandon Peterson answered Krish S commented

@krish.s

The problem that you are experiencing is one that conveyor system designers deal with all the time. Depending on the desired performance of your system there are three ways to solve the problem. The easiest would be to speed up the output of the final conveyor (a speed of 1.2 worked for me). The most complex would be to use the merge controller. A good middle ground would be to use the Area Restriction mechanisms available in the decision point triggers. This allows you to control which item is allowed to enter a certain area.

You can add this to your model by adding three decision points around an intersection and connect the output ports of the two incoming points to the outgoing point (see image).

Next you will want to create an OnArrival trigger on the two incoming points and set it up like the picture below.

Next create an OnContinue trigger on the outgoing point and set it up like the picture below.

This will alternate between lanes when the conveyor system backs up. You can adjust the timing of the setup by moving the decision points closer and further apart. You can also experiment with allowing more than 1 in the area at a time.

I hope this helps,

Brandon


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Krish S avatar image Krish S commented ·

Thanks a lot! It works. But since my model has a different conveyor properties its more difficult to work on this.

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