Method and apparatus for the automatic replacement of rim shaped

Details Method and apparatus for the automatic replacement of rim shaped Method and apparatus for the automatic replacement of rim shaped

1996-05-20

1998-03-10

Pitts, A. L.

Tool changing

Process

294261, 144172, 144373, B23Q 3155

Patent

active

057254648

ABSTRACT:
The invention relates to a method and apparatus for the automatic replacement of rim shaped size reduction tools by means of a programmed sequence control which is started according to the present invention when the power consumption of the size reduction machine rises due to the wear of the acting edges. An essential component of the invention is a locking system allowing the automatic engaging and disengaging of the knife rim from its carrying disc. The system consists essentially of three locking bolts fastened on the tool rim and in which catch notches, located behind the carrying disc, the locking nose of the locking unit snaps in being pressed by a spring. To disengage the tool rim, the hydraulically actuable plunger presses the locking unit whereby the locking nose snaps out of the locking bolt so that the forcing spring can now force the tool rim from its carrying disc. Thereby the tool rim is deposited on a pulling carriage which moves it automatically out of the machine housing when the housing door is open. Then it is taken over by a transport hook which transports it automatically to a separate room for overhauling.

REFERENCES:
patent: 3913643 (1975-10-01), Lambert
patent: 4583574 (1986-04-01), Pallmann
patent: 5217424 (1993-06-01), Pallmann
patent: 5313696 (1994-05-01), Dunne et al.
patent: 5525094 (1996-06-01), Pallmann

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