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US 12,589,537 B2Granted
Mold clamping device and injection molding machine
AssigneeThe Japan Steel Works, Ltd.
InventorSouma Mitani
Life of this patent
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Abstract
A mold clamping device includes two mold platens; a plurality of ball screw mechanisms connecting the mold platens to each other; and a plurality of servo motors configured to drive the respective ball screw mechanisms. Each of ball screws respectively configuring the plurality of ball screw mechanisms is provided with a cover which covers at least a part of the corresponding ball screw between the two mold platens.
Claims14
A mold clamping device comprising:
- two mold platens;
- a plurality of ball screw mechanisms connecting the mold platens to each other;
- and
- a plurality of servo motors respectively provided on the plurality of ball screw mechanisms and configured to drive the respective ball screw mechanisms,
- wherein the plurality of ball screw mechanisms respectively includes ball screws,
- wherein each of the plurality of ball screws is provided with a cover that covers at least a part of the corresponding ball screw between the two mold platens,
- wherein the cover provided between the two mold platens on each of the plurality of ball screws includes a first cover body provided on one of the mold platens and a second cover body provided on the other of the mold platens, and
- wherein the first cover body and the second cover body are concentrically separated and maintained out of contact with each other.
5 more elements
An injection molding machine comprising:
- an injection device configured to inject an injected material;
- and
- a mold clamping device configured to clamp a mold, the mold clamping device comprising:
- two mold platens;
- a plurality of ball screw mechanisms connecting the mold platens to each other;
- and
- a plurality of servo motors respectively provided on the plurality of ball screw mechanisms and configured to drive the respective ball screw mechanisms,
- wherein the plurality of ball screw mechanisms respectively includes ball screws,
- wherein each of the plurality of ball screws is provided with a cover that covers at least a part of the corresponding ball screw between the two mold platens,
- wherein the cover provided between the two mold platens on each of the plurality of ball screws includes a first cover body provided on one of the mold platens and a second cover body provided on the other of the mold platens, and
- wherein the first cover body and the second cover body are concentrically separated and maintained out of contact with each other.
8 more elements
Dependencies are inferred from the claim text.