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US 4,697,448 AGranted
Control system for transfer apparatus
AssigneeThe Budd Company
InventorsRaymond R. Stevens, Jr., Robert R. Beisel, Stephen F. Griffiths
Life of this patent
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Abstract
An electrical control system is provided for controlling a number of different operations in a transfer apparatus for transferring parts from one die to another. The controls of the operations are independent of each other and need not be made in cascade. Adjustments of any one of the operations may be made without directly affecting the other operations.
Claims14
In a manufacturing system
- a. a transfer machine for performing different independent operations including gripping, moving, rotating, lowering and lifting a component,
- b. a source of electrical power;
- c. a plurality of solenoids to receive power from said power source to control the start and stop times of said operations in said transfer machine;
- d. first normally open and second normally closed serially connected electrical contacts connected between said source of power and each of said solenoids to permit power to be applied to said solenoids when said first and second contacts are closed to start said operations;
- e. first and second timing relays having adjustable means for controlling the opening and closing of said first and second electrical contacts,
- f. means for connecting said source of power simultaneously to all of said first and second relays, and
- g. said first timing relay being operative to close said first normally open contacts to connect said source of power to said solenoids to start said operations in said transfer machine and said second timing relay being operative to open said normally closed contacts to disconnect said solenoids from said source of power to stop said operations in said transfer machine.
4 more elements
Dependencies are inferred from the claim text.