Types of Vibratory Feeders
Bowl feeders consist of a bowl top with a spiral track inside the bowl. The component parts are delivered from the bottom of the bowl feeder up the track into the top of the feeder as the bowl vibrates. The parts are the positioned in the proper position. These parts are usually then fed on to a vibratory or air track.
Centrifugal feeders, also referred to as "rotary feeders", are used in place of a vibratory feed system,when the application necessitates the high speed of centrifugal force or those that do not lend themselves to vibration. Centrifugal Feeders have a conical central rotor which moves parts in a circular motion to the perimeter of the unit (bowl walls) by a predetermined speed based on the type of application. The feeder separate component parts utilizing rotary force and the parts revolve with high speed and are pulled to the outside of the bowl. Centrifugal feeders are typically found in the medical and pharmaceutical industries, as well as in packaging and assembly plants. They offer a quiet and gentle yet quick distribution.
Step Feeders or conveyors are used to eliminate the problems associated with parts jamming inside the regular vibratory feeders. This unique design eliminates costly downtime and the potential for damage to the unit and allows use of a vertical mast design which results in a savings of valuable floor space. Step feeders start their process by collecting the component parts from the hopper. This is done by elevating plates, or a conveyor with pre-sorted parts which are fed until they reach the desired transfer height. Key features of step feeder are that it operates quietly and without vibration.
Linear Feed Systems are specifically designed as an alternative to vibratory feeder bowls and involve horizontal conveying of components. Linear Feed Systems are ideal for applications where oily or irregular parts (due to size, shape and other physical characteristics) being fed make the use of feeder bowls impractical. This feed alternative also helps to create a smooth flow for further use. Linear Feed Systems are relatively easy to setup and require minimal maintenance, providing years of dependable service. Special application: Multi-track design, carpet feeder.