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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Now for a real question for the group.
Greetings all,
If I am still allowed, after my little brain fart earlier today (see post below), I have a serious question for the group. I have been asked by a customer to assist them in prototyping a dump hopper for their product, approx. 2500 lb boxes of plastic pellets. My questions regard the use of linear actuators and light curtains. I would appreciate any basic information anyone can provide, links to web sites would be fine provided it is not terribly technical. I have looked at a couple of sites dealing with the light curtains and got a headache trying to go threw their pdf files. The linear actuators are very new to me, all I really think I know is that they are basically electric pistons. Is that a fair assumption? The customer mentioned using pneumatics, but I suggested the actuators as a cheaper/easier solution. No hoses to burst, fluid to check the level of, pumps to burn out/run over etc. This equipment will have to be extremely idiot/gorilla proof, due to the presence of forklifts and, shall we say, some of the duller tools in the shed, hence the concerns for the pneumatics. As for the light curtains, I will be using them to make sure the forklift is out of the way. Thanks in advance for any and all input, Jim |
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I have a customer at work that uses several dumpers to tilt up boxes of
plastic pellets for feeding the main system that supplies 35 injection molding machines the colorant plastic these tilt up on the corner , I can get you the name if you wish , they are pretty cheap |
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William, I would appreciate the name of the dumpers, if nothing else I can compare what we have "designed" to what they use. Anyone else got any info on the actuators? I am really stuck on their use. Thanks, Jim "williamhenry" wrote in message . .. I have a customer at work that uses several dumpers to tilt up boxes of plastic pellets for feeding the main system that supplies 35 injection molding machines the colorant plastic these tilt up on the corner , I can get you the name if you wish , they are pretty cheap |
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will post it up on Saturday
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William, I would appreciate the name of the dumpers, if nothing else I can compare what we have "designed" to what they use. Anyone else got any info on the actuators? I am really stuck on their use. Thanks, Jim "williamhenry" wrote in message ... I have a customer at work that uses several dumpers to tilt up boxes of plastic pellets for feeding the main system that supplies 35 injection molding machines the colorant plastic these tilt up on the corner , I can get you the name if you wish , they are pretty cheap Dumpsters I've seen advertised have a curved "spiked" frame on each side which lets the dumpster tilt forward, using the spikes going into holes in the base frame to keep it aligned and under control while dumping. Surplus center has a bunch of different types of actuators which is basically a motor rotating a threaded rod inside of a worm nut - some designs have a good bit of power, and can be had in different voltages. Very similar to the actuators they used to use on satellite dishes to "scan the arc". HTH Ken |
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In article , "Jim C
Roberts" jimnthem_AT_comcast_DOT_net says... William, I would appreciate the name of the dumpers, if nothing else I can compare what we have "designed" to what they use. Google on "gaylord dumper" or some variation. Those big boxes on a pallet are called Gaylords. Here are couple examples... http://www.imscompany.com/webpage_03.asp?id=37 http://www.unscramblers.com/gaylord.htm Ned Simmons |
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On Wed, 8 Sep 2004 22:08:53 -0400, "Jim C Roberts"
jimnthem_AT_comcast_DOT_net vaguely proposed a theory .......and in reply I say!: remove ns from my header address to reply via email Greetings all, If I am still allowed, after my little brain fart earlier today (see post below), The really funny thing is that your "message below" is _above_ this one on my machine GG ************************************************** *** I know I am wrong about just about everything. So I am not going to listen when I am told I am wrong about the things I know I am right about. |
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"Old Nick" wrote: I know I am wrong about just about everything. So I am not going to listen when I am told I am wrong about the things I know I am right about. ^^^^^^^^^^^^^^^ I was only wrong once. That was when I thought I was wrong and I wasn't. |
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On Thu, 09 Sep 2004 04:31:24 GMT, "Leo Lichtman"
vaguely proposed a theory .......and in reply I say!: remove ns from my header address to reply via email "Old Nick" wrote: I know I am wrong about just about everything. So I am not going to listen when I am told I am wrong about the things I know I am right about. ^^^^^^^^^^^^^^^ I was only wrong once. That was when I thought I was wrong and I wasn't. hehe. ************************************************** *** I know I am wrong about just about everything. So I am not going to listen when I am told I am wrong about the things I know I am right about. |
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