group 4 items on conveyor

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question

larkint8328 asked Jul 24, '23 Carter Walch commented Jul 24, '23

group 4 items on conveyor

Hello,

I am making a model and the output of a saw sends 4 sheets out, the only issue is when they're put onto the conveyor there is this gap between them

I used a decision point to translate the boxes next to each other but I also want the second set to be right behind the first set is there a better way to go about doing this?

My assumption is because the items enter 1 at a time and one is moved forward that is the reason why this issue is occurring.

4items.fsm

Software Version:

FlexSim 23.1.2

conveyor seperator grouping

1690214813155.png (57.8 KiB)

4items.fsm (42.2 KiB)

Answer 1 · 2023-07-24T18:21:48Z

Carter Walch answered Jul 24, '23 Carter Walch commented Jul 24, '23

Hi @larkint8328 ,

4items.fsm

By adding a couple if statements into the code of the DP triggers, you can specify the logic you want to get the items exactly where you want.

Note: Be cautious in doing this because the items are not actually grouped together, they are still in the order they arrived and will be processed in that order

The issue before was that we moved items 1 and 3 forward one unit, and 2 and 4 were moved up next to them. However, item 3 should have moved two units to be right behind item1. The if statements allow us to specify what to do for each object that arrives at DP1.

if (getinput(current)==4){
x += xsize(item);
}

...

if (getinput(current)==3){
x = xsize(item);
}

groupitems.gif (1.1 MiB)

4items.fsm (42.7 KiB)

· 1

Carter Walch commented · Jul 24, 2023 at 06:29 PM

Instead of editing the code in the triggers of Translate Item, you can have 4 separate translate item triggers (one for each item). This is demonstrated in this model:

4items.fsm

0 ·

1690223374409.png (25.3 KiB)

1690223389951.png (26.3 KiB)

4items.fsm (42.7 KiB)

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