Patent ID: 11951618
Assignee: NINGBO SANHAN ALLOY MATERIAL CO., LTD.
Field: Handling (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 3:
4. The multi-procedure integrated automatic production line for hard alloy blades under robot control according to claim 2, wherein a collecting hopper is arranged at a bottom of the passivation-device shell; the grinding-material backflow mechanism is arranged on a side of the collecting hopper; the grinding-material backflow mechanism comprises a blow-off pipe and a sand pumping pipe; an outlet side of a grinding fluid pipe extending out of a bottom of the collecting hopper is connected with a grinding fluid pump; and an other side of the grinding fluid pipe is connected with the blow-off pipe; the grinding fluid pump is connected with the sand pumping pipe; and the sand pumping pipe is connected with a sand discharge pipe device.