Staple Remover Reciprocation for Thick Sheet Bundle Extraction
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Solution Overview
Problem
Existing staple removing devices struggle to efficiently remove staples from thick sheet bundles due to increased resistance, especially when sheet rigidity is high or staple type is challenging.
Innovation Solution
A staple removing device with a support part, insertion part, and controller that allows the insertion part to reciprocally move multiple times or operate intermittently between the sheet bundle and staple to facilitate staple removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single advancing operation of the removing part is used, then the device structure remains simple, but the staple cannot be completely pulled out from thick sheet bundles due to increased resistance
Solution Approach 1:
The removing part performs multiple advancing and retracting operations periodically. The controller controls the removing part to advance between the sheet bundle and staple, then retract, and repeat this cycle multiple times. This periodic action gradually reduces resistance and enables complete staple removal from thick sheet bundles without increasing device structural complexity.
2Productivity
If the removing part advances continuously, then the operation is simple, but the resistance increases and prevents complete staple extraction from thick bundles
Solution Approach 1:
The system uses periodic advancing and retracting motions instead of continuous advancement. Each advance-retract cycle allows the removing part to gradually work through the resistance of thick sheets, reducing the force required at any single moment while maintaining effective staple extraction over multiple cycles.
Solution Approach 2:
The removing part performs preliminary advancing operations that create initial separation between the staple and sheet bundle. This preliminary action reduces the binding force before subsequent advancing operations, making complete extraction easier and more efficient.
3Productivity
If multiple reciprocating operations are performed, then complete staple removal is achieved, but the operation time increases
Solution Approach 1:
The controller automates the periodic reciprocating operations, performing multiple advance-retract cycles at optimized speeds. This automated periodic action achieves complete staple removal while minimizing total operation time through efficient cycling rather than manual repeated operations.
Solution Approach 2:
The removing part maintains continuous useful action by immediately transitioning from retraction to the next advance motion without idle periods. This continuous cycling maximizes the effectiveness of each operation and reduces total removal time while ensuring complete staple extraction.
Data Source
AI summary
A staple removing device configured to remove a staple from a sheet bundle bound by the staple, the staple removing device includes a support part comprising a placement surface capable of placing the sheet bundle thereon, an insertion part configured to be insertable between the sheet bundle and the staple in a state in which the sheet bundle is supported on the support part, and configured to remove the staple from the sheet bundle by the insertion, and a controller configured to control an operation of the insertion part. The controller is configured to reciprocally move the insertion part multiple times between the sheet bundle and the staple in a process of removing the staple from the sheet bundle.