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The requirement was to transfer products through a 90-degree bend. The problem was that the bend was extremely tight. The available space was so small that even slat conveyors and Plastic Modular conveyors could not be made to produce a tight enough bend...
The application best suited roller conveyors, but we couldn’t use these, as the bend was so tight that the rollers would have to physically overlap each other, which is impossible… or is it?
If there’s one thing the designers and engineers at Central Conveyors relish more than anything else it’s a challenge! There’s no way they’ll ever let a problem beat them, and so, after due deliberation, they came up with the answer. In hindsight, the eventual solution was elegant and simple, but the reality of manufacturing it proved to be fiddly and complex.
By splitting the roller into disks, with spaces between each of them, the rollers could in effect actually overlap and occupy the same space, whilst still presenting a smooth carrying surface for the product to ride over. This required considerable precision in the forming of the disks, and of the spacing between them, but the end result was a very well received economical and cost effective conveyor solution.
In most other respects the unit is a straight forward Chain Driven roller conveyor.
Even here the small radius required some diversions from standard design.
With such a tight bend, the sprockets are noticably out of alignement with their neighbours, and rotated out of true. Under normal circumstances this would cause the chain to distort and possibly spring off the sprocket.
At the same time, the sprocket teeth may ‘miss’ the chain links on take-up, once more derailing the chain.
To overcome this the sprocket teeth where individually re-shaped and smoothed to allow the chain to enter them at an angle, whillst still ensuring full take-up. It also required the use of side-flexing chain.If you would like more information on these conveyor case studies, or any other CCL conveyors or conveyor systems, call us on 01509 816064 today for an informal, no obligation chat. We’re here to listen to your conveyor enquiry and help provide you with complete conveying solutions.