Engineering
Reciprocating feeder
Feed metal blanks from a magazine with a reciprocating carriage. Load, friction and drive force determine whether the queue advances or stalls.
What happens
Lower the drive force or raise the blank mass. Watch contact propagate through the queue. The retaining teeth prevent reverse motion while the pusher retracts.
One-dimensional rigid blanks, a finite-mass carriage, bounded servo force and Coulomb sliding friction. The retaining pawl is an ideal one-way constraint. A magazine supplies one blank only after the lower opening is clear; the outfeed removes discharged blanks.
Try this
Lower the drive force or raise the blank mass. Watch contact propagate through the queue. The retaining teeth prevent reverse motion while the pusher retracts.
The model and its limits
One-dimensional rigid blanks, a finite-mass carriage, bounded servo force and Coulomb sliding friction. The retaining pawl is an ideal one-way constraint. A magazine supplies one blank only after the lower opening is clear; the outfeed removes discharged blanks.
