Strip Die-Cutting with Temporary Storage for Stable Cut Edges
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Solution Overview
Problem
The current follow-up cutting method struggles to maintain a stable cutting edge quality during die-cutting of strip materials due to synchronization issues between the strip material and cutting dies, particularly at high conveying speeds, making it difficult to apply in electrode plate stacking processes.
Innovation Solution
A strip material cutting device with a die-cutting module and temporary storage modules that compensate for speed differences by temporarily storing or releasing strip material, ensuring a stationary state during cutting, using tension members and elastic elements to stabilize the strip material and cutting dies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the follow-up cutting method is used to continuously convey the strip material during cutting, then the production speed can be increased, but the cut edge quality becomes poor during die-cutting
Solution Approach 1:
The patent introduces a temporary storage module with a temporary storage roller that can dynamically adjust its rotation speed and storage capacity. During die-cutting, the temporary storage roller temporarily stores excess strip material to compensate for speed differences between the conveying line and cutting dies, enabling continuous conveyance while maintaining cut edge quality. This dynamic adjustment resolves the contradiction by allowing the system to adapt to varying cutting speeds and maintain synchronization.
Solution Approach 2:
The temporary storage module acts as an intermediary between the conveying line and the die-cutting module. It buffers the speed differences and maintains a relatively stationary state during cutting by temporarily storing or releasing strip material. This intermediary mechanism enables continuous conveyance without compromising cut edge quality, as it mediates the speed mismatch between the moving strip material and the reciprocating cutting dies.
2Productivity
If the strip material is continuously conveyed during die-cutting, then the production efficiency is improved, but the synchronization between the strip material and cutting dies becomes difficult to maintain
Solution Approach 1:
The temporary storage roller dynamically adjusts its operation to maintain synchronization. It can temporarily store strip material when the conveying speed exceeds the cutting speed, and release stored material when cutting speed exceeds conveying speed. This dynamic buffering capability allows continuous conveyance while maintaining stable synchronization between the strip material and cutting dies throughout the cutting cycle.
Solution Approach 2:
The temporary storage module provides beforehand cushioning by pre-storing strip material during periods when cutting speed is slower than conveying speed. This preparatory storage compensates for upcoming speed variations, ensuring that synchronization is maintained throughout the entire cutting cycle. The cushioning effect prevents synchronization errors from occurring in the first place.
3Manufacturing precision
If the conveying line is repeatedly paused and resumed for cutting, then the cut edge quality can be maintained, but the production speed becomes difficult to increase
Solution Approach 1:
The patent implements continuous conveyance of strip material throughout the cutting process, eliminating the need to pause and resume the conveying line. The temporary storage module ensures that the strip material remains continuously fed to the cutting dies, maintaining production flow. This continuous action preserves cut edge quality through proper speed compensation while significantly improving production speed by removing idle pause time.
Solution Approach 2:
The system dynamically balances continuous conveyance with cutting operations. The temporary storage roller adjusts its speed and storage capacity in real-time to maintain the relatively stationary state during cutting while keeping the conveying line in continuous motion. This dynamic control enables both continuous production and high-quality cutting edges without requiring pauses in the conveying line.
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
Improves the quality of cut edges by maintaining a relative stationary state between the die-cutting module and strip material, enhancing the precision and efficiency of electrode plate production.
Implementation Method 1
the first temporary storage module comprises a first temporary storage roller capable of moving to temporarily store or release the strip material
Implementation Method 2
the first tension member drives the first temporary storage roller to compress the strip material by exerting an acting force on the first temporary storage roller
Implementation Method 3
the first elastic member is configured for balancing the gravity of the first temporary storage roller by means of elasticity thereof
Data Source
AI summary
A strip material cutting device and a stacking apparatus are disclosed. The strip material cutting device includes a die-cutting module and a first temporary storage module, the die-cutting module is capable of moving in a reciprocating manner along a conveying line of a strip material, and the die-cutting module includes a first upper cutting die and a first lower cutting die capable of moving close to each other so as to cut the strip material. The first temporary storage module is located upstream of the die-cutting module. The first temporary storage module includes a first temporary storage roller that is capable of moving to temporarily store or release the strip material and is configured for enabling, during cutting, the die-cutting module and the strip material to be relatively stationary in a conveying direction of the strip material.