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Active Contributor

Join Date: Mar 2007
Posts: 21

Mechanical Stopper for Moving Pipes

08/24/2011 1:29 AM

Hello,

Can anybody suggest a mechanical stopper design for moving pipes on roll conveyor?

Pipe of upto 3" moving with approx 70m/min speed.

Please provide me any similar design or even a rough sketch also will do.

Only constrint in this is pipeshould not rebound much.

Also if anybody have a Zero gravity pneumatic circuit, please provide me.

Regards,

RR

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Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

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Location: Richland, WA, USA
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#1

Re: mechanical Stopper for moving pipes

08/24/2011 2:59 AM

Something like this railroad end bumper?

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Power-User

Join Date: Aug 2010
Location: Wales, UK
Posts: 391
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#2

Re: Mechanical Stopper for Moving Pipes

08/24/2011 10:06 AM

Hi ralish,

Are you in India? if so try acecontrols.in they specialise in Shock Absorbers and should be able to recommend a suitable unit.

Best regards,

John

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Participant

Join Date: Aug 2011
Posts: 4
#3

Re: Mechanical Stopper for Moving Pipes

08/24/2011 10:50 PM

How long are they and their weight?

Are they rolling while moving longitudinally ?

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Participant

Join Date: Aug 2011
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#4

Re: Mechanical Stopper for Moving Pipes

08/25/2011 12:56 AM

Can you specify material and maximum length, weight, number of pipes on conveyor at a time? This will help us to provide you the exact solution.

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Power-User
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#5

Re: Mechanical Stopper for Moving Pipes

08/25/2011 1:39 AM

You haven't stated how long/heavy the pipes are or if the stopper is moveable; however, we deal with similar issues in a sawmill where heavy logs are run down rollcases and must be stopped. The speeds are similar. Some of the logs weigh over a tonne so the weights are likely also similar.

We tend to go with the very simple (and inexpensive) solutions first. For example, an effective stationary stop can be as simple as bolting and old truck tire to a frame and facing it with a piece of steel plate, where the log impacts it. The steel plate is hung from conveyor chain so it can move in the direction of impact.

A more sophisticated impact bumper can be made with certain blends of polyurethane--one that we work with is called Redwood Plastics "deadplate". Google that name if you want to see details. It has the ability to absorb impacts and, unlike rubbers, does not promote bounceback. Redwood Plastics is just an example--I know there are other manufacturers of this kind of product in Canada and there must be others all over the world.

Stops can also be made simply, too, by the "brute force method", where your stop is heavy enough that the weight of what you are stopping is small in comparison. That will work (for a while).

Jon.

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Join Date: Aug 2011
Posts: 45
#6

Re: Mechanical Stopper for Moving Pipes

08/25/2011 8:01 AM

Make "G" shape clamp cum cam arrengement with pivot at suitable location,and suitable clamping arrangement at open end of G.When the face of pipe hits front portion of G (G <<) the cam should swing and the top portion of G will come down and the clamp will hold the pipe.Rubber pad on clamp can reduce noice and also damage to pipe.Size of G depends on length of pipe.

The design can further be improved based on more input.

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