Paper Shredder Binder Removal via Overlapping Units
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Solution Overview
Problem
Existing paper recycling and shredding machines face issues with damage from binders like metal clips and staples, and struggle to remove binders of varying sizes and shapes due to limited removal mechanisms.
Innovation Solution
The implementation of a sheet manufacturing apparatus, paper supplying device, and paper shredding device equipped with overlapping removing units and protrusions along the transfer path to increase binder removal opportunities, reducing damage to cutting and crushing units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single removing unit is used in paper shredding machines, then the device complexity is low, but the binder removal rate is insufficient
Solution Approach 1:
The binder removal function is segmented into multiple removing units arranged along the paper transfer path. Each removing unit independently removes binders from different positions or orientations of the paper, collectively achieving comprehensive binder removal that a single unit cannot accomplish.
Solution Approach 2:
The removing units are arranged in multiple dimensions along the paper transfer path, creating a multi-layered removal system. This spatial arrangement allows binders attached at various positions and orientations to be removed effectively, transforming a single-point removal into a distributed multi-dimensional removal system.
2Reliability
If multiple removing units are arranged along the transfer path, then the binder removal rate increases, but the device complexity increases
Solution Approach 1:
Multiple removing units are merged into a coordinated system along the transfer path, where each unit contributes to the overall binder removal function. The units work together in sequence or parallel to remove different types of binders, achieving synergistic effect while managing structural complexity through integrated design.
3Reliability
If binders are not removed before crushing, then the processing continuity is high, but the crushing blades are damaged
Solution Approach 1:
Binder removal is performed as a preliminary action before the paper enters the crushing unit. The multiple removing units eliminate binders in advance, preventing potential damage to crushing blades while maintaining continuous processing flow. This preliminary removal ensures that only clean paper without binders reaches the crushing stage.
Data Source
AI summary
A sheet shredding device includes a stacking unit configured to stack paper; a cutting unit configured to cut paper supplied from the stacking unit; a transferring unit configured to transfer paper from the stacking unit to the cutting unit; and removing units configured to remove a binder attached to the paper. The removing units are provided so as to overlap in a transfer direction of the paper along a transfer path of the paper from the stacking unit to the cutting unit.