US 12,328,040 B2
Method of producing iron core product and apparatus for producing iron core product
Hidemi Sasaki, Kitakyushu (JP); and Takashi Nishida, Kitakyushu (JP)
Filed by Mitsui High-tec, Inc., Kitakyushu (JP)
Filed on Aug. 18, 2022, as Appl. No. 17/820,597.
Application 17/820,597 is a continuation of application No. PCT/JP2020/009477, filed on Mar. 5, 2020.
Prior Publication US 2022/0399789 A1, Dec. 15, 2022
Int. Cl. B29C 45/14 (2006.01); B29C 45/72 (2006.01); B29C 45/76 (2006.01); B29K 705/12 (2006.01); B29L 31/00 (2006.01); H02K 15/02 (2025.01)
CPC H02K 15/02 (2013.01) [B29C 45/14344 (2013.01); B29C 45/72 (2013.01); B29C 45/76 (2013.01); B29C 2945/761 (2013.01); B29C 2945/7613 (2013.01); B29C 2945/76287 (2013.01); B29K 2705/12 (2013.01); B29K 2995/0008 (2013.01); B29L 2031/7498 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of producing an iron core product in a resin filling system including a transport portion, a heating portion, and a jig, the method comprising:
preheating the heating portion, including a number of first accommodating portions, to a predetermined operating temperature, wherein the number of first accommodating portions are located outside a core body placed on the jig;
placing resin materials into a number of second accommodating portions formed in the transport portion, wherein each of the number of second accommodating portions contains an equal amount of the resin materials;
after preheating the heating portion to the operating temperature, transferring the resin materials from the number of second accommodating portions into each of the number of first accommodating portions formed in the heating portion, wherein the number of first accommodating portions equals the number of second accommodating portions formed in the transport portion;
heating at the predetermined operating temperature, by the heating portion, of the resin materials disposed in the number of first accommodating portions in order to melt the resin materials into a molten resin having a uniform viscosity;
supplying the molten resin from the number of first accommodating portions to resin forming regions provided in the core body that contain a plurality of magnets; and
solidifying the molten resin around the plurality of magnets in the resin forming regions of the core body.