Screw feeder Detailed structure and working principle

Screw feeder to go through the material weight by weighing bridge for testing to determine the weight of the material on the tape , mounted in the tail of the digital speed

sensor , continuous measurement of the running speed of the belt weigh feeder . The speed sensor pulse output proportional to the speed of the feeder , weight signal

And velocity signals together into Vibrating feeder controller, a microprocessor for processing, generating and displaying the cumulative amount / instantaneous flow . The flow rate is

compared with the set flow rate , controlled by the output signal of the inverter control instrumentation change the drive speed of the feeder , the feeder on the matter

Feed flow rate changes, and keep the set close to the feed flow , enabling dosing .
Feeder works
Feeder using the vibrator centrifugal force generated by rotation of the eccentric block , the screening hand, the movable portion vibrator forcibly make a continuous circle or

approximately circular movement. Material is in the car with the sieve screen surface inclined to make continuous throwing motion , the material evenly and continuously feed the

mouth to the subject

.
When the feeder base plate together with the forward movement of the material , the material inside the silo fill the body followed by a space . When backward movement of the

base plate , the base material can not be on the back and along the unloading blocked , to achieve the feed . Change Backplane movement amplitude, frequency and height of the

material gate

Adjustable feeding amount . Feeding amount is generally 40 tons / hour or less. Such feeder suitable for small and medium- size materials , mainly two kinds of tilting and

trough . Pendulum feeder floor is curved , hinged on the body , the work floor swing. Feeder trough bottom is flat, for the work

Reciprocating motion.