Patent ID: 11909278
Assignee: SUZHOU FINE-STAMPING MACHINERY TECHNOLOGY CO., LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B  C | IPC H

Claim 8:
9. A method for producing a motor laminated core, comprising manufacturing a laminated core using the production apparatus of a motor laminated core according to claim 1, wherein the method comprises the following steps:
conveying a metal strip continuously step-by-step in a blanking direction, and spraying a mixed liquid for catalyzing an adhesive on an upper surface of the metal strip before entering between an upper die assembly and a lower die assembly of the production apparatus;
disposing the metal strip between the upper die assembly and the lower die assembly of the production apparatus, and in the process of conveying the metal strip continuously step-by-step in the blanking direction, attaching a core sheet preforming area to an adhesive spraying device in the production apparatus, conveying the adhesive in an adhesive cartridge in a first adhesive spraying control device to first adhesive spraying openings of the adhesive spraying device via an adhesive control apparatus, conveying the adhesive in the adhesive cartridge in a second adhesive spraying control device to second adhesive spraying openings of the adhesive spraying device via the adhesive control apparatus, adhering the adhesive sprayed from the first adhesive spraying openings and the second adhesive spraying openings to a lower surface of the core sheet preforming area, and uniformly distributing adhesive dots on the lower surface of the core sheet preforming area; and
in the process of conveying the metal strip continuously step-by-step, punching the core sheet preforming area coated with the adhesive on the metal strip to form core sheets, and blanking the core sheets into a blanking channel and curing and bonding with a top surface of a core sheet lamination group inside the blanking channel by contacting the adhesive with the mixed liquid so as to form a laminated core; and during the curing and bonding, bonding at 15° C. to 35° C. for 10 s to 3 min, and pressing the formed core sheet by a forming die of the upper die assembly, and subjecting the core sheet lamination group to a back pressure of a hydraulic cylinder and a clamping force of a locking ring, so that the formed core sheet is tightly bonded to the top surface of the core sheet lamination group.