Apparatus and method for tie bar nut drive system

Details Apparatus and method for tie bar nut drive system Apparatus and method for tie bar nut drive system

1979-10-31

1981-08-25

Baldwin, Robert D.

Metal founding

Process

294265, 164154, 164303, 425589, B22D 1710, B22D 1726

Patent

active

042853842

ABSTRACT:
An apparatus and method for removing tie bars from a die casting machine. The apparatus and method involves utilizing gearing attached to the tie bar nut whereby the nut is held captive, but is capable of being rotated by an auxiliary drive unit. Further, by utilizing the existing die casting machine functions, it is possible to remove the tie bar from the machine so that the die can be removed and a new die inserted into the die casting machine. By reversing the process the tie bar can now be reinserted into its operating position in the machine and the locking nut rotated to its proper position and locked up.

REFERENCES:
patent: 2541772 (1951-02-01), Lockard
patent: 3289282 (1966-12-01), Shaffer
patent: 3882588 (1975-05-01), McFalls et al.
patent: 4030186 (1977-06-01), Myers et al.
patent: 4043016 (1977-08-01), Elkin
patent: 4080144 (1978-03-01), Hehl
patent: 4092881 (1978-06-01), Jurgens et al.
patent: 4256166 (1981-03-01), Prince
B & T Die Casting Machinery, Ex-Cell-O Corp., Micromatic Operations, Mar. 1979.

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