Device for manufacturing laminated iron core and method for manufacturing laminated iron core

Patent metadata

Field	Value
Publication number	US-11469651-B2
Application number	US-202017009193-A
Country	US
Kind code	B2
Filing date	Sep 1, 2020
Priority date	Sep 24, 2019
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

Abstract

A device and a method for manufacturing a laminated iron core are provided for including: a first supply unit of supplying a first adhesive to a first part of a predetermined region, the predetermined region corresponding to a punched member of a strip-shaped metal sheet intermittently fed in one predetermined direction; a second supply unit arranged at a downstream side in a conveyance direction of the metal sheet with respect to the first supply unit, and of supplying a second adhesive to a second part different from the first part of the predetermined region; and a punching unit of punching the predetermined region of the metal sheet to which the first supply unit and the second supply unit supply the first adhesive and the second adhesive, so as to form the punched member having the first adhesive and the second adhesive applied on the first part and the second part.

First claim

What is claimed is:

1. A method for manufacturing a laminated iron core, the method comprising:
supplying a first adhesive to a first part of a predetermined region, the predetermined region corresponding to a punched member of a strip-shaped iron containing metal sheet intermittently fed in one predetermined direction;
supplying a second adhesive to a second part of the predetermined region that is different from the first part of the predetermined region after supplying the first adhesive to the first part; and
punching the predetermined region of the strip-shaped iron containing metal sheet after supplying the second adhesive to the second part, so as to form the punched member having the first adhesive and the second adhesive applied on the first part and the second part,
wherein a first area in which the first adhesive is applied to the predetermined region and a second area in which the second adhesive is applied to the predetermined region are separate areas in a conveyance direction of the metal sheet, and
wherein the punched member has a shape corresponding to a shape of the laminated iron core.

2. The method according to claim 1 , further comprising:
supplying a third adhesive to at least one part of another predetermined region located side by side with the predetermined region in a width direction of the strip-shaped iron containing metal sheet, the another predetermined region corresponding to another punched member of the strip-shaped iron containing metal sheet; and
punching the another predetermined region of the strip-shaped iron containing metal sheet after supplying the third adhesive to the at least one part, so as to form the another punched member having the third adhesive applied on the at least one part.

3. The method according to claim 2 , wherein the supplying of the third adhesive to the at least one part includes supplying the third adhesive entirely to the another predetermined region.

4. The method according to claim 1 , wherein the supplying of the second adhesive to the second part is performed immediately after the supplying of the first adhesive to the first part.

Assignees

• Mitsui High Tec

Inventors

• Maruyama Takashi

Classifications

• B21D28/02 Primary

  Punching blanks or articles with or without obtaining scrap (cutting nails or pins from strips or sheet material B21G3/26); Notching · CPC title

• F16B11/006

  by gluing (gluing of plastics material B29C65/48) · CPC title

• Y10T156/107

  Punching and bonding pressure application by punch · CPC title

• B21D37/08

  Dies with different parts for several steps in a process · CPC title

• B32B15/011

  all layers being formed of iron alloys or steels · CPC title