MUMBAI, India, June 26 -- Intellectual Property India has published a patent application (202617067035 A) filed by Nippon Steel Corporation on May 28, 2026, for Manufacturing Apparatus And Manufacturing Method For Laminated Iron Core.
Inventors include Takeda, Kazutoshi; Fukuchi, Minako; and Kataoka, Takashi.
The application for the patent was published on June 19, 2026, under issue no. 25/2026.
Abstract: Provided are a manufacturing apparatus and a manufacturing method for a laminated iron core, the apparatus and method being capable of suppressing unnecessary spreading of an adhesive and reducing the risk of the adhesive entering unintended areas. According to the present invention, a manufacturing apparatus 1 for a laminated iron core 4 forms an iron core thin plate 3 having a predetermined shape by punching from a steel plate 2, and manufactures a laminated iron core 4 in which a predetermined number of the iron core thin plates 3 are laminated and bonded. The manufacturing apparatus 1 comprises: an adhesive application means 14 for applying an adhesive 140 to a portion 2a of a steel plate 2 corresponding to an iron core thin plate 3; and a punching part 15 for punching the iron core thin plate 3 from the steel plate 2 after the application of the adhesive 140 by the adhesive application means 14, the punching part 15 being composed of a die including an upper die 130 and a lower die 131. The upper die 130 or the lower die 131 is provided with: a recessed part 50 provided at a position corresponding to the part 2a to which the adhesive 140 has been applied; and a ventilation port 51 for providing communication between the internal space of the recessed part 50 and the outside of the upper die 130 or the lower die 131.
Disclaimer: Curated by HT Syndication.
