Material Elevator
Material Elevator
(OP)
Hi,
I am working on a project in which I need to elevate batches of coin (approx 3000 asst coins per minute_ approximately 36", along a patch which preferably within 20 degrees of vertical. The footprint of whatever method I choose needs to be kept to a minumum
Three methods I am currently exploring are:
1. Bucket Elevator
2. Cleated conveyor
3. Vertical Screw Conveyor
Is anyone here familiar with vertical screw conveyors? Based off what I can tell, it seem that this would be unsuited for batch processing because it requires continuous material feed to allow the elevator screw to funtion. Can someone verify this?
Can you think of any other methods I may want to consider.
Thanks,
Glenn
Are
I am working on a project in which I need to elevate batches of coin (approx 3000 asst coins per minute_ approximately 36", along a patch which preferably within 20 degrees of vertical. The footprint of whatever method I choose needs to be kept to a minumum
Three methods I am currently exploring are:
1. Bucket Elevator
2. Cleated conveyor
3. Vertical Screw Conveyor
Is anyone here familiar with vertical screw conveyors? Based off what I can tell, it seem that this would be unsuited for batch processing because it requires continuous material feed to allow the elevator screw to funtion. Can someone verify this?
Can you think of any other methods I may want to consider.
Thanks,
Glenn
Are





RE: Material Elevator
2. Depending on flow rate can be continually running, no space required between batches. Again, may need an accumulator at the top. There are usually strict limits to both weight and angle (most, but not all, will not actually go vertical, more like 30-60 degrees). These can be made for low cost.
3. A vertical screw with the correct pitch and friction coefficient could work, you can even put cleats on it if you want. The main concern I would have is the cost of the screws and the implementation. With these you can go vertical in a relatively small foot print.
Other. Conveying has been around for a long time, there are lots of interesting ways to do things. It realy comes down to 3 things.
a) what form is the product in before conveying (ie is it coming freely off of a belt, is it in a bin on a belt, is being placed by hand...)
b) what form does it need to be in after conveying (ie into a bin, onto a conveyor...)
c) what are the proccess contstraints (is there a foot print limitation, how high do you need to go, what is the speed and accuracy required, are there chemicals or water present...)
Brad Woodward
www.akeng.com
www.appliedkinetics.ca
RE: Material Elevator
Thanks,
Glenn
RE: Material Elevator
I think I'd look at a steeply inclined belt conveyor with a cleated belt, or a vibratory spiral elevator.
RE: Material Elevator
Brad Woodward
www.akeng.com
www.appliedkinetics.ca
RE: Material Elevator
Screw conveyors have a nasty habit of getting coins stuck between the screw and the case which does not do their appearance any good.
Is this a coin sorter, or a coin wrapping machine?
B.E.
RE: Material Elevator
Thanks,
Glenn]
RE: Material Elevator
A Syntron vibratory feeder fed the coins onto the belt and leveled the pile for a more even feed.The boot of the elevator was designed to be self cleaning.Dropped coins being picked up by the returning cleats.
B.E.
RE: Material Elevator
Have had no exposure to screw conveyors for coins, but from experience with other types (belt/bucket) feel there would be issues with screws.
Other comments from respondents are all valid, but I would have a preference for cleated belt with flexible bellow type sidewalls-downfall of these type of sidewalls is the required pulley diameters.
Vibratory feeders with speed control allow for trimming of flow for optimum results.
If using belt with cleats and side walls, prior to coin pick up point, run the belt thru a tunnel with minimal clearances,the length of the tunnel needs to be a minimum length equal to the pitch(centres) of the cleats-this normally ensures that there is no spillage.
Additionally, make sure the belt manufacturer spaces the cleats correctly and extends the cleats into the bellows of the side walls to minimise gaps
Also at the lower end of tunnel, provide a curtain ( flexible type flaps) so that conveyor belt has to pull through this curtain.
There is no hard and fast rule, but be prepared for a bit of R and D on the go to get it correct.
Good luck
Ross