How to prevent side transferred items from bumping into each other?

Question

question

Afthab L asked Jul 05 2021 at 12:33 PM Afthab L commented Aug 10 2021 at 12:31 PM

How to prevent side transferred items from bumping into each other?

Hi,

I've been trying to model one very long conveyor with numerous side transfer conveyors as shown in the image below.

When the entry space is reduced for the main conveyor, the items still enter into the main conveyor despite bumping into the item behind it causing it to stick together. Does this not violate the entry space condition?

I don't want them to stick together so if the distance is insufficient, the transfer conveyor should not send through the package. I'm not sure how to go about doing this. Any help would be appreciated.Throughput_1.fsm

Software Version:

FlexSim 19.2.4

conveyor side transfer

1625488141784.png (166.6 KiB)

1625488250598.png (242.5 KiB)

throughput-1.fsm (47.3 KiB)

· 1

______

Cookie preferences

Your privacy is important to us and so is an optimal experience. To help us customize information and build applications, we collect data about your use of this site.

May we collect and use your data?

Learn more about the Third Party Services we use and our Privacy Statement.

Strictly necessary – required for our site to work and to provide services to you

These cookies allow us to record your preferences or login information, respond to your requests or fulfill items in your shopping cart.

YES

Improve your experience – allows us to show you what is relevant to you

These cookies enable us to provide enhanced functionality and personalization. They may be set by us or by third party providers whose services we use to deliver information and experiences tailored to you. If you do not allow these cookies, some or all of these services may not be available for you.

YES

NO

Customize your advertising – permits us to offer targeted advertising to you

These cookies collect data about you based on your activities and interests in order to show you relevant ads and to track effectiveness. By collecting this data, the ads you see will be more tailored to your interests. If you do not allow these cookies, you will experience less targeted advertising.

YES

NO

Are you sure you want a less customized experience?

We can access your data only if you select "yes" for the categories on the previous screen. This lets us tailor our marketing so that it's more relevant for you. You can change your settings at any time by visiting our privacy statement

Your experience. Your choice.

We care about your privacy. The data we collect helps us understand how you use our products, what information you might be interested in, and what we can improve to make your engagement with Autodesk more rewarding.

May we collect and use your data to tailor your experience?

Explore the benefits of a customized experience by managing your privacy settings for this site or visit our Privacy Statement to learn more about your options.

Answer 1 · 2021-07-09T17:24:25Z

Eric M answered Jul 09 2021 at 5:24 PM Afthab L commented Aug 10 2021 at 12:31 PM

Hi @Afthab L I made a solution using process flow. It works by putting items in a zone when they're travelling on the main conveyor. The incoming side transfers check the content of that zone and are only allowed to continue when the zone content changes to 0. This way the main conveyor items never stop. The incoming items are the ones that have to defer to whatever is in the zone. Of course, the zone can be manipulated by changing the location of DP2 and DP3.

acquire-priority_1.fsm

acquire-priority-1.fsm (55.2 KiB)

· 4

Eric M commented · Jul 09 2021 at 5:25 PM

The Entry Space only looks at items passed the entrance point. So it means the item must wait for the item in front of it to move until x distance is met if that makes sense.

0 ·

Afthab L commented · Aug 08 2021 at 9:43 AM

Hi Eric! Thank you so much for the reply. I sort of gave up on an answer from the forum so didn't check the replies (my bad). The solution you presented however still seems to have the same issue where even when the box enters the zone, priority is still given to the side transfer conveyor (time stamp at 26s). Is there a way to make it so that if there's any content within that zone , no box should enter from the side transfer conveyor.

Thank you so much btw! I've just started learning process flow so it's still very daunting for me.

0 ·

1628415678230.png (267.5 KiB)

Eric M Afthab L commented · Aug 09 2021 at 4:44 PM

@Afthab L no problem on the delay! I apologize it took us a little while to get you an answer. What's actually happening at 26s is that the side transfer item is arriving just before the main line item. So the token in process flow checks the zone content, sees it's 0, and then sends the item into the main conveyor. Right after this, the main line item's token enters the zone. I assumed this was okay because the main line items were never stopped even with the incoming side transfer items. Moving DP2 slightly to the right would make the side transfer item wait in the case of 26s. You could adjust the position of DP2 even more to get the spacing down to where you wanted it.

0 ·

Afthab L Eric M commented · Aug 10 2021 at 12:31 PM

I get it now, I thought the system would check DP 2 twice; the first time as normal and then again when the item passes through DP 1. I get it now, Thanks a lot again! You've saved me a lot of trouble!

1 ·

question