Structure simple, feeding uniform, continuous performance good, stress vibration force can adjustable; at any time change and control flow, operation convenient; eccentric block for stress vibration source, noise low, power less, regulation performance good, no rushed material phenomenon; if used closed fuselage can prevent dust pollution, vibration smooth, and work reliable, and life long; can regulation stress vibration force, can at any time change and control flow, regulation convenient stable; vibration motor for stress vibration source, noise low, and power small, and regulation performance good, no rushed material phenomenon.