Battery Case Forming With Integrated Pattern Imprinting
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Solution Overview
Problem
Current secondary battery case manufacturing processes are inefficient as they cannot concurrently perform case molding and imprinting processes, leading to reduced production speed and potential damage to the workpiece and stamp.
Innovation Solution
A secondary battery case manufacturing device that integrates a die, punch, knockout member, and stamp member, allowing for simultaneous case molding and imprinting processes. The knockout member and stamp member work in conjunction to press and imprint patterns on the workpiece, enhancing production efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If case molding and imprinting are performed separately, then each process can be performed with dedicated equipment, but production speed is reduced and manufacturing time increases
Solution Approach 1:
The patent combines the molding process and imprinting process into a single integrated device. The molding die and imprinting stamp are positioned on opposite sides of the workpiece, allowing both processes to occur simultaneously during a single operation cycle, thereby doubling production efficiency without requiring separate equipment for each process.
Solution Approach 2:
The pressing member serves multiple functions: it applies pressure for molding the workpiece in the die, and simultaneously enables the stamp to imprint patterns on the workpiece. This multi-functional design allows a single device to perform both molding and imprinting operations, reducing the need for separate dedicated equipment.
2Reliability
If the stamp is always exposed to contact the workpiece, then imprinting can be performed continuously, but the stamp and workpiece are damaged due to collision during transfer
Solution Approach 1:
The stamp is designed to be movable rather than fixed, allowing it to dynamically adjust its position. The stamp protrudes from the stamping member only when needed for imprinting and retracts when not in use, preventing collision damage during workpiece transfer while maintaining imprinting capability when required.
Solution Approach 2:
The stamp is positioned and protruded only at the appropriate moment before the workpiece arrives at the imprinting position. This timing control ensures the stamp is ready to imprint when the workpiece is in place, but retracted during transfer operations, preventing unnecessary collisions and damage.
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
The device enables high-speed production of secondary battery cases by concurrently performing molding and imprinting, preventing damage to the workpiece and stamp, and maintaining the integrity of the imprinting process.
Implementation Method 1
an elastic member configured to press the knockout pad in the second direction
Implementation Method 2
The support member may be elastically deformable
Data Source
AI summary
A secondary battery case manufacturing device includes a die including a first surface and a second surface that are opposite to each other, a punch hole extending through the first surface and the second surface, a punch arranged to face the first surface and configured to press a workpiece toward the punch hole in a first direction, a knockout member arranged to face the second surface and configured to press the workpiece in a second direction opposite to the first direction, and a stamp member on the knockout member and configured to imprint a pattern on the workpiece as the knockout member comes into contact with the workpiece.