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US 12,605,870 B2Granted
Injection molding machine and method of operating the same
AssigneeThe Japan Steel Works, Ltd.
InventorsKeigo Susa, Motomu Furumoto
Life of this patent
Estimating the term…
Abstract
An injection molding machine has a clamp that generates electromagnetic force and that secures a moving plate or a fixed plate using attractive force that is produced by the electromagnetic force; and a controller that controls separation force that acts on the moving plate or the fixed plate such that the separation force is less than the attractive force.
Claims15
An injection molding machine comprising:
- a clamp that generates an electromagnetic force and that secures a moving plate or a fixed plate to the clamp using an attractive force that is produced by the electromagnetic force;
- and
- a controller configured to control a separation force that acts on the moving plate or the fixed plate such that the separation force is less than the attractive force in a molding process from start of a first operation to release a closed-mold state to completion of a second operation to form a next-closed mold state.
A method of operating an injection molding machine, wherein:
- the injection molding machine comprises a clamp that generates an electromagnetic force and a controller, and
- the clamp secures a moving plate or a fixed plate to the clamp using an attractive force that is produced by the electromagnetic force,
- the method comprises the step of using the controller to control a separation force that acts on the moving plate or the fixed plate such that the separation force is less than the attractive force in a molding process from start of a first operation to release a closed-mold state to completion of a second operation to form a next closed-mold state.
Dependencies are inferred from the claim text.