Metal founding – Means to shape metallic material – Pressure shaping means
Patent
1996-01-30
1997-02-04
Lin, Kuang Y.
Metal founding
Means to shape metallic material
Pressure shaping means
164119, B22D 1712
Patent
active
055988822
ABSTRACT:
The invention is characterized by a rack mechanism (60) interconnecting a fixed platen (41) and a movable platen (43) for preventing the movable platen (43) from cocking relative to its guide posts (38) during vertical movement thereof. The rack mechanism (60) includes a gear rack (61) paired with each of the guide posts (38) with the bottom end of each gear rack (61) secured to the movable platen (43), and a spur gear (71) in meshing engagement with each of the gear racks (61) and supported on the fixed platen. A box-like framework interconnects the gear racks (61) and a synchronizing drive system simultaneously rotates the spur gears (71) in unison and includes parallel shafts (72) on opposite sides of the framework with two of the spur gears (71) supported on each of the shafts (72) and in meshing engagement with two of the gear racks (61). The running tolerances between the spur gears (71) and the gear racks (61) can be adjusted by pillow blocks (76) supporting the shafts (72).
REFERENCES:
patent: 3039157 (1962-06-01), Bobenmyer
patent: 3063106 (1962-11-01), Peirce
patent: 4932461 (1990-06-01), Schaffer et al.
patent: 5230379 (1993-07-01), Voss
CMI International Inc.
Lin Kuang Y.
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