Mold balancing lifting bar

Details Mold balancing lifting bar Mold balancing lifting bar

1990-05-30

1991-07-23

Focarino, Margaret A.

Handling: hand and hoist-line implements

Grapple

Collar-engaging

294 813, B66C 110

Patent

active

050337840

ABSTRACT:
A method to facilitate the movement of heavy molds for use in an injection molding machine employing load bearing lugs on each mold half and a lifting bar which receives and supports the lugs and mold. In the method, the lifting tool is slid over the lugs. The tool and mold is then raised and lowered until the balance point is found. The lifting bar is then clamped in place on the lugs so that the mold can be safely raised and inserted into an injection molding machine. The balanced mold can be easily moved in and out of the guide rails of the injection molding machine since it is presented as a balanced load with no tendency to bind in the machine.

REFERENCES:
patent: 849623 (1907-04-01), Killian
patent: 2153474 (1939-04-01), Naylor et al.
patent: 3548465 (1970-12-01), Workman
patent: 4058339 (1977-11-01), Burchard, Jr.
patent: 4194868 (1980-03-01), Walker et al.
patent: 4500275 (1985-02-01), Ruhl
patent: 4702456 (1987-10-01), Von Holdt
patent: 4753415 (1988-06-01), Von Holdt

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