Positioning control system for a non-contacting magnetic conveyo

Details Positioning control system for a non-contacting magnetic conveyo Positioning control system for a non-contacting magnetic conveyo

1998-01-15

1999-05-25

Valenza, Joseph E.

Conveyors: power-driven

With means to facilitate working, treating, or inspecting...

Condition responsive control of conveyor or station apparatus

1984643, 1985023, 198619, 1984652, B65G 3500

Patent

active

059062622

ABSTRACT:
A positioning control system is used to control the stoppage of a conveyed article stably and with good repeatability with a magnetic conveyor system element on the receiving side when a conveyed article is passed between magnetic conveyor device elements in a noncontacting magnetic conveyor system configured from at least two magnetic conveyor system elements. The system comprises two independently operating magnetic conveyor system elements, and is provided with drive shafts 18A-18C, each of which has helical magnetic poles at its surface, and a guide path 14 along which a carrier 13 travels, and the carrier is equipped with magnetic poles of equal pitch to the pitch of the helical magnetic poles. When the rotary shafts rotate, the carrier moves over the guide path by a magnetic coupling action and is passed between the magnetic conveyor system elements. The system further includes a rotation angle sensor 34 which senses a specific rotation angle of the drive shaft, a position check sensor 35 which senses the reception of the carrier, and control units 32A and 32B which position the carrier when the sensing of both sensors 34, 35 has been performed synchronously.

REFERENCES:
patent: 4265357 (1981-05-01), Amberg et al.
patent: 4832181 (1989-05-01), Rugab et al.
patent: 5203445 (1993-04-01), Shiraiwa
patent: 5377816 (1995-01-01), Deligi et al.
patent: 5437359 (1995-08-01), Maruyama et al.

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