公开(公告)号：US20210281151A1

公开(公告)日：2021-09-09

申请号：US16321470

申请日：2017-05-17

Applicant: BMC CO., LTD.

Inventor： In Gyu JUNG

IPC: H02K15/12 ,  H02K15/02

Abstract: An apparatus for manufacturing a heat sealing-type rotational laminated core enabling the automatic separation of a laminated core, wherein the apparatus for manufacturing a laminated core includes: a squeeze ring installed on the lower portion of a blanking die for the blanking process; a heating means installed on the outer portion of the squeeze ring; a rotating die having the squeeze ring and the heating means installed therein to rotate by a predetermined pitch with the squeeze ring and the heating means; a vertically-moving die installed on one side of the blanking die and having a plurality of protruding portions and recessed portions formed; and a fixed die installed in the upper mold on the upper side of the vertically-moving die and having a plurality of recessed portions and protruding portions formed.

公开(公告)号：US20210305885A1

公开(公告)日：2021-09-30

申请号：US16321469

申请日：2017-05-17

Applicant: BMC CO., LTD.

Inventor： In Gyu JUNG

IPC: H02K15/02

Abstract: A laminated core manufacturing apparatus includes an upper mold and a lower mold and enabling the manufacturing of a laminated core by stacking individual laminar members which are formed by having a strip which is sequentially transferred on an upper portion of the lower mold undergo a piercing process and a blanking process by means of punches provided to the upper mold, wherein the laminated core manufacturing apparatus further comprises: a squeeze ring installed on a lower portion of a blanking die for the blanking process; am elevating block installed on the lower portion of the squeeze ring; an elevating means for vertically moving the elevating block; and a heating block installed on an upper portion of the elevating block and positioned at an inner diameter surface of the laminated core.

公开(公告)号：US20210287852A1

公开(公告)日：2021-09-16

申请号：US16321468

申请日：2017-05-17

Applicant: BMC CO., LTD.

Inventor： In Gyu JUNG

IPC: H01F41/02 ,  H01F3/02

Abstract: An apparatus for manufacturing a heat sealing-type rotational laminated core, includes an upper mold and a lower mold, and forming and stacking individual laminar members, the individual laminar members being formed by having a strip which is sequentially transferred on the upper portion of the lower mold undergone a piercing process and a blanking process by punches mounted on the upper mold.