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Anonymous Poster

Factory Simulation Software

06/12/2009 9:32 AM

Hi all,

I'm hoping maybe more experienced engineers can help me out with this one.

We have a postal sorting centre. There are multiple mail products (pre-paid, stamped etc) that need to go through their own process flow. There are many common processes that all products flow through (sorting machines, manual sortation etc.).

What is needed is a model to plan the number of units needed running to clear a given volume, bearing in mind the capacity has finite limits.

The main challenge Im finding is that we dont quite get product in uniformly hour by hour. The arrivals are dynamic, for example - you may have 50% of your product to process at 9am but only 2% arrives at 9pm. So a model that brings excess product that could not be cleared and adds it to the interval new arrivals is the trick.

Can anyone recommend some tool that allows one to enter varying product arrivals over a day?

Or if anyone in the postal industry has experience with modelling it would be helpful to hear your thoughts.

Thanks,

Jack

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Guru
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#1

Re: Factory Simulation Software

06/13/2009 8:53 PM

Hello Guest, why not join? We are quite friendly!

Regarding your sorting machines. It would seem obvious to me to find the through-put of the sorting machines you use, divide the total through-put of the whole facility by the maximum that one sorting machine can handle and, you have the number of sorting machines needed?

I realize these machines have a maximum speed, and perhaps they are not working at the maximum speed?

Or it could be that if you sorted out the larger letters and packages first, then run the smaller ones through, you would be able to sort more? Just a thought.

I have had a similar problem and had to sort it out when I was in print finishing. Sometimes it was quicker in the long run to do one operation, say to stick or staple a smaller or larger page in a book,then start to run the machine again to put the part completed books through.

I know you are not doing the same thing but, it is all about getting stuff through in the shortest time, as we were working to a deadline as well as you.

bb

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Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=|O|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]
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Anonymous Poster
#2

Re: Factory Simulation Software

06/14/2009 12:57 AM

Hai Jack

We are ERP developers who can give solutions to your requirements.

Can you please share your E mail address so that we can send you our company profile for your refrence.

Please get back to me at the earliest : sasikala@pactsoft.com

With best regards

Sasikala

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Anonymous Poster
#3

Re: Factory Simulation Software

01/28/2010 3:48 PM

You might want to check out Simio. Simio is object-oriented simulation software that can be applied to any application. Simio is a SImulation Modeling framework based on Intelligent Objects. This may be a bit different than other simulation packages that you may be familiar with, even those that market themselves as object oriented. Simio is designed from the ground up to support the object modeling paradigm; however it also supports the seamless use of multiple modeling paradigms including a process orientation and event orientation. It also fully supports both discrete and continuous systems, along with large scale applications based on agent-based modeling. These modeling paradigms can be freely mixed within a single model. It's free to try. http://www.simio.biz/

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Guru
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#4

Re: Factory Simulation Software

01/28/2010 5:47 PM

Hi just a thought here,

you may not need a particular APP specific for your work type. You may be able to feed quantities into Excel.

Work on one station, and work out the reasonable maximum through-put of one station, that is, letters, parcels big, small, hand and automated stuff. Multiply that one stations max' by the total number of stations you have and you will know pretty accurately what your total capacity for the whole sorting plant will be.This may show that in places and at certain busy times you may need larger bins or sacks, whatever you use to catch the automatically sorted mail.

A larger bin may mean you can carry on using a station (that is a machines and hand picked items) for longer rather than trying to make room to shift a newer small catchment bin to replace the same sized bin. Fewer larger catcher bins are more efficient than lots of half sized bins.

That way you will know for sure more or less, how many hand sorted and automatically sorted pieces you can handle, and so can use all the sorters as is necessary at any one time, and as the shift goes on move people around to work on larger items or onto sorting or loading the auto-letter machines.

Ones you have taken time to get an accurate count on one station, there will be a maximum speed and a maximum number of automated items that will and can be put through. Not the speeds off the machines and belts etc, and when it is getting close to the 'trip-speed' where it can handle no more, then other stations or parts of stations can help out with either the letter side, or, the bulky awkward items to make more room.

Us a A4 stiff covered book and or design sheets for the whole place or each sorting are or station and you can list alongside the appropriate machines on your list the ones that can handle more than others. That will also feed back to you whether a belt motor may be starting to fail, or whether and exit is blocked where you may not be able to see it in normal monitoring.

Just a thought, thats all.

Take care

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Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=|O|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]
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Guru
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Join Date: Jun 2008
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#5

Re: Factory Simulation Software

01/28/2010 5:53 PM

Hi Guest,

It would be nice if you acknowledged which 'guest' you are when you reply. There is two or three here now and it is kinda gut wrenching to realise that the original poster has not replies to any posts?

In which case, why ask the question?

It is simple courtesy to acknowledge that you are the OP and that you have either found some of the replies helpful or not? It does not look to me as if the OP (Original Poster) has written any reply, which is why I ask this?

__________________
Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=|O|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]
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