Dispensing – Processes of dispensing – Molten metal
Patent
1979-11-23
1981-09-15
Scherbel, David A.
Dispensing
Processes of dispensing
Molten metal
222629, 222604, 222 70, 164336, B22D 4104, B22D 4106
Patent
active
042892597
ABSTRACT:
Automatic ladle systems adapted for use in metal die casting operations are disclosed herein. In a preferred form the invention comprises a rigid, supporting base on which a control platform is rotatably mounted for radially moving a ladle between a metal filling and metal pouring positions. The ladle is coupled to the platform by support arm structure extending from the platform which may be raised or lowered with a hydraulic cylinder. A parallelogram linkage system couples the ladle to the end of the support arm structure. Reach extension apparatus extending between the linkage and the platform moves the ladle outwardly with respect to the base during movement to a filling position. The reach extension apparatus and the parallelogram linkage allow the horizontal position of the ladle pour spout to remain substantially constant during raising and lowering of the ladle to prevent spillage. A tilting system interconnected with the linkage facilitates ladle draining. In one form of the invention the hydraulic cylinder employed for raising and lowering the support arms is provided with internal cushioning. Electrical and hydraulic control systems are provided for operation of the device.
REFERENCES:
patent: 3923201 (1975-12-01), Hersh et al.
patent: 4074837 (1978-02-01), Engel
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