Eccentric Blade Cutting for High-Speed Electrode Assembly
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Solution Overview
Problem
Existing electrode assembly manufacturing processes experience vibration issues during cutting, leading to deteriorated electrode position quality and limited cutting speed due to inertial moment in X-axis reciprocating driving.
Innovation Solution
An apparatus with eccentrically driven upper and lower cutting blades, synchronized by eccentric drivers, reduces vibration and increases cutting speed by eliminating sudden acceleration and deceleration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If X-axis reciprocating driving is used for cutting, then the cutting part can perform left and right reciprocating motion for speed synchronization, but vibration is generated due to repeated stop, acceleration, constant speed, and deceleration sections
Solution Approach 1:
The patent transitions from reciprocating motion (with stop and reverse phases) to continuous rotational motion. The cutting blades are driven by eccentric drivers that convert rotational motion into reciprocating cutting action, while the blades themselves rotate continuously without stopping. This dynamic change eliminates the vibration caused by repeated acceleration and deceleration in traditional reciprocating systems.
Solution Approach 2:
The patent employs periodic reciprocating motion of the cutting blades through eccentric drivers, where the blades move back and forth during continuous rotation. This periodic action allows the cutting edges to engage and disengage rhythmically, reducing impact vibrations while maintaining continuous operation without complete stops.
2Speed
If heavy object X-axis reciprocating driving is used for cutting, then the cutting part can achieve speed synchronization, but cutting speed is limited due to inertial moment
Solution Approach 1:
The system replaces linear reciprocating motion with continuous rotational motion driven by motors. The eccentric drivers convert this rotational motion into the required reciprocating cutting motion, allowing for higher speeds because rotational motors can accelerate and decelerate more rapidly than linear reciprocating systems with large inertial moments.
Solution Approach 2:
The patent substitutes a traditional mechanical reciprocating drive system with an eccentric driver mechanism powered by motors. This substitution reduces the effective inertial moment by using rotating components with smaller mass moments of inertia, enabling higher cutting speeds while maintaining precise speed synchronization through motor control.
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 apparatus significantly reduces vibration and improves electrode position quality while enabling high-speed cutting by ensuring continuous blade travel and synchronized speed.
Implementation Method 1
an upper eccentric driver configured to eccentrically drive the upper cutting blade, a lower eccentric driver configured to eccentrically drive the lower cutting blade
Data Source
AI summary
An apparatus for manufacturing an electrode assembly according to the present invention includes a conveyor configured to allow an electrode to travel; and a cutter configured to cut the traveling electrode to a predetermined size, wherein the cutter comprises: an upper cutting blade disposed above the electrode; an upper eccentric driver configured to eccentrically drive the upper cutting blade; a lower cutting blade disposed below the electrode in a direction corresponding to the upper cutting blade; and a lower eccentric driver configured to eccentrically drive the lower cutting blade.