Abstract
The vibrating feeder which has generally been used has its flow control devices installed on the outside of the hopper discharge.
This paper presents a new simple control system which involves a vibrating coil spring attached to the discharge opening of the hopper to quantitatively supply powder.
The powder supply experiments were conducted by using granular materials having good fluidity. The effects of vibrational frequency and amplitude on the flow rate were investigated. The results of the experiments revealed that the powder could be easily supplied and its flow rates changed by adjusting vibrational velocity.
