Laminated Iron Core Adhesive Layout to Avoid Lifter Interference
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Solution Overview
Problem
The application of adhesive to a core steel plate before punching can cause it to adhere to lifters in laminated iron core manufacturing apparatuses, especially when thinner plate-shaped members are used, leading to interference and inefficiencies.
Innovation Solution
A laminated iron core manufacturing apparatus that applies adhesive to specific regions of the plate-shaped member, avoiding contact with lifters by positioning ejection ports to exclude areas where lifters will touch, and includes a rotating lamination process to distribute adhesive-unapplied regions between punched members.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is applied to core steel plate before punching, then lamination adhesion is improved, but adhesive adheres to lifter causing interference and inefficiency
Solution Approach 1:
The adhesive application is localized to specific regions that do not overlap with lifter contact areas. The liquid material supply unit is configured to apply adhesive only to regions to be punched members while avoiding contact regions where the lifter comes into contact with the plate-shaped member, thus preventing adhesive adhesion to the lifter while maintaining lamination adhesion strength.
2Reliability
If lifter is used to support thinner plate-shaped members, then interference with die is prevented, but adhesive adheres to lifter surface
Solution Approach 1:
The adhesive is applied selectively to regions that are not contact regions with the lifter. The liquid material supply unit adheres liquid material to regions to be punched members while avoiding contact regions where the lifter on downstream side of adhesion location and on upstream side of punching unit comes into contact with the plate-shaped member.
Solution Approach 2:
The plate-shaped member surface is divided into adhesive application regions and non-application regions (contact regions). The adhesive is applied only to specific segments (regions to be punched members) while leaving other segments (contact regions with lifter) free of adhesive, thus preventing harmful adhesion.
3Strength
If adhesive is applied to all regions, then lamination strength is maximized, but adhesive waste increases and lifter adhesion occurs
Solution Approach 1:
Adhesive is applied only where needed for lamination strength - specifically to regions to be punched members - while avoiding contact regions with the lifter. This localized application prevents adhesive waste and eliminates adhesion to the lifter while maintaining sufficient lamination strength.
Solution Approach 2:
Instead of applying adhesive to all regions (excessive action), adhesive is applied only to the necessary regions (partial action) - specifically avoiding contact regions with the lifter. This partial application is sufficient for achieving lamination strength while preventing adhesive waste and harmful adhesion.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents adhesive from adhering to lifters, ensuring efficient conveyance and lamination of thinner plate-shaped members, reducing interference and maintaining apparatus efficiency.
Implementation Method 1
a liquid material supply unit configured to adhere a liquid material to regions to be the punched members of one main surface of the plate-shaped member conveyed by the convey unit
Data Source
AI summary
A laminated iron core manufacturing apparatus for laminating a plurality of punched members obtained by punching a plate-shaped member, including: a convey unit conveys the plate-shaped member; a lifter supports the plate-shaped member; a liquid material supply unit adheres a liquid material to regions to be the punched members of one main surface of the plate-shaped member; and a punching unit to punches the plate-shaped member after the liquid material is applied to form the punched members. The liquid material supply unit adheres the liquid material to the plate-shaped member while avoiding, in the regions to be the punched members in the plate-shaped member, a contact region where the lifter on a downstream side of an adhesion location of the liquid material in the liquid material supply unit and on an upstream side of the punching unit comes into contact with the plate-shaped member.