Achieving a smoother transfer around curves
02 August 2012
Munich-based chain manufacturer, iwis has developed magnetic curves for flat top chains that achieve almost pulsation free running. This is the result of maintaining uniformly aligned magnetic fluxes throughout all tracks, allowing products to be conveyed with exceptionally low tensions and reduced noise.
Conventional magnetic curves are plastic single or multi-track guides for flat top chains that hold the chain in the curves whilst flexing around a radius by acting upon the chain pins with a series of magnets placed around the bend. When the pins transfer from one magnetic field to the next, the holding force is reduced and then increased again causing a slip-stick effect. These vibrations can then be transferred to the goods that are being transported, and in the worst case may even result in the goods tipping over.
With iwis' new Flexon magnetic curves, the slip-stick effect has been reduced to practically zero, thanks to an optimised arrangement of the magnets, and a system that adapts the magnetic field strength and increases the size of the magnetic fields. This enables products to be transported smoothly, with minimal jerking and with much reduced noise.
iwis has succeeded in reducing the forces that are created in the curves by as much as 60 percent. Consequently, the new magnetic curves do not require as much driving power, and it is possible to run longer conveying systems with the same drive units, thereby saving energy and conveyor manufacturing costs.
With an ingenious arrangement of magnets, configured individually for each track according to pin diameter and chain pitch, Flexon magnetic curves achieve almost identical magnetic forces in each track. The magnetic curve track systems have excellent friction characteristics, ensuring that the flat top chains undergo very low wear. This also reduces lubrication requirements and is one step closer to the goal of dry-running (particularly desirable when transferring food and beverages in a hygienic environment).
The chain systems are manufactured using extremely durable materials. Flexon magnetic curve systems are offered in all standard sizes and for all conventional flat top chains, radii and angles. Standard Tab and Bevel curves are also catered for. And if bespoke work is required, iwis will also manufacture magnetic curves according to individual customer specifications.
The complete product range from iwis also includes precision roller chains, heavy duty roller chains, conveyor chains, maintenance-free and corrosion-resistant chains, accumulation chains, special application chains, flyer chains, flat top chains and plastic modular belts for industrial applications, agricultural machinery chains and accessories for the agricultural industry as well as timing drive chains for the automotive industry.
Flexon will get its first public airings at the following trade shows: Motek 2012 (8 to 11 October 2012, Stuttgart, Germany: Hall 3 Stand 3-231) and Brau Beviale 2012 (13 to 15 November 2012, Nurnberg, Germany: Hall 7 Stand 7-328).
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