Electrode Cutter Transmission Structure for Stable Blade Clearance
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Solution Overview
Problem
Conventional electrode cutting apparatuses face issues with non-uniform cuts and reduced cutting force due to parallelism tolerance and increased clearance between the upper and lower cutters, leading to burrs and defective electrode assemblies.
Innovation Solution
A power transmission unit with a lift block and upper frame connected via a connection shaft and elastic member, allowing loose coupling to maintain straightness and prevent fluctuation in cutter clearance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the connection shaft is strongly coupled to the lift block using a bolt, then the structural strength is improved, but the parallelism tolerance between the lift block and upper frame increases, causing distortion of the upper cutter
Solution Approach 1:
The connection shaft is designed with a loose coupling structure that allows dynamic adjustment and movement, replacing the rigid bolt connection. This enables the system to adapt to parallelism variations while maintaining structural integrity, preventing cutter distortion without sacrificing strength.
Solution Approach 2:
The coupling parameters between the connection shaft and lift block are changed from fixed (bolted) to loose (slidable), allowing the system to accommodate parallelism tolerance through controlled movement rather than rigid constraint, thereby maintaining both strength and precision.
2Force
If the upper cutter and lower cutter are aligned using side pressure, then the cutting force is improved, but the upper cutter becomes inclined due to side pressure and distance difference, distorting the joining surface
Solution Approach 1:
The connection shaft acts as an intermediary element between the lift block and upper frame, mediating the force transmission while preventing direct side pressure from causing cutter inclination. This intermediary structure maintains cutting force effectiveness while eliminating the distortion problem.
3Ease of operation
If the clearance between upper cutter and lower cutter increases due to cutter width decrease, then the ease of operation is improved, but the cutting precision deteriorates, generating burrs and foreign matter
Solution Approach 1:
The loose coupling structure provides feedback mechanisms that maintain optimal clearance between cutters by allowing automatic adjustment during operation, preventing excessive clearance buildup that would lead to burrs and foreign matter while maintaining ease of operation.
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
Guarantees straightness of the upper frame movement, preventing burrs and ensuring smooth cuts while maintaining high cutting force, thus improving productivity by reducing the need for frequent parallelism adjustments.
Implementation Method 1
an elastic member (400) located at an upper part of the connection shaft (300)
Data Source
AI summary
A power transmission unit for electrode cutting apparatuses includes a lift block, an upper frame, a connection shaft, and an elastic member. The lift block includes a structure configured to be mounted to a main frame so as to be movable upwards and downwards. An upper cutter holder is mounted to the upper frame and is fixed to an upper cutter configured to cut an electrode sheet. The connection shaft is configured to connect the lift block and the upper frame to each other. The elastic member is located at the upper part of the connection shaft.