Production apparatus and production method for laminated core
AssigneeNippon Steel Corporation
InventorTakashi ARAMAKI
Life of this patent
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Abstract
A production apparatus includes a punch, a blanking die arranged below the punch, a first holding part arranged below the blanking die, a second holding part arranged below the first holding part and formed of a separate member from the first holding part, and a heating part arranged around the second holding part below the first holding part. A plurality of core sheets is cut out from a steel strip by the punch and the blanking die, an outer peripheral portion of a plurality of core sheets, which has been cut out, is pressurized laterally by the first holding part and the plurality of core sheets is pressurized downward by the punch, and the plurality of core sheets pressurized downward by the punch is heated by the heating part while being held in the second holding part.
Claims11
An apparatus of producing a laminated core by cutting out a plurality of core sheets from a steel strip with an adhesive layer on a surface of the steel strip and causing an obtained plurality of core sheets to adhere together, the production apparatus for a laminated core comprising:
- a punch;
- a blanking die arranged below the punch;
- a first holding part arranged below the blanking die;
- a second holding part arranged below the first holding part, the second holding part formed of a separate member from the first holding part;
- and
- a heating part arranged around the second holding part below the first holding part, wherein
- a plurality of core sheets is cut out from a steel strip by the punch and the blanking die,
- an outer peripheral portion of the plurality of core sheets, which has been cut out, is pressurized laterally by the first holding part with a pressurizing force capable of preventing the core sheets from falling off, and the plurality of core sheets is pressurized downward by the punch, and
- the plurality of core sheets pressurized downward by the punch is heated by the heating part while being held in the second holding part.
A production method for a laminated core performed in a production apparatus including:
- a punch;
- a blanking die arranged below the punch;
- a first holding part arranged below the blanking die;
- a second holding part arranged below the first holding part, the second holding part formed of a separate member from the first holding part;
- and a heating part arranged around the second holding part below the first holding part, the method comprising:
- cutting out a plurality of core sheets from a steel strip with an adhesive layer on a surface of the steel strip by the punch and the blanking die;
- pressurizing an outer peripheral portion of the plurality of core sheets, which has been cut out, laterally by the first holding part with a pressurizing force capable of preventing the core sheets from falling off, and pressurizing the plurality of core sheets downward by the punch;
- and
- heating the plurality of core sheets pressurized downward by the punch by the heating part while being held in the second holding part.
Dependencies are inferred from the claim text.