Cutter Assembly One-Handed Paper Cutting with Guide Wheels
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Solution Overview
Problem
Current paper cutting machines require two hands for operation, lack automatic folding and tensioning, leading to poor cutting efficiency and frequent paper tearing due to alignment issues.
Innovation Solution
A dual-guide-wheel pressing paper cutter assembly with an object picking member and cutter assembly that allows one-handed operation, automatic folding, and increased paper tension, utilizing parallel guide rails and guide wheels to align and cut paper into arches, enhancing cutting success.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional paper cutting machines are used, then cutting function is provided, but two hands are required for operation and automatic folding/advancing pressure increasing/positioning systems are absent
Solution Approach 1:
The patent combines multiple functions (paper picking, folding, advancing, and cutting) into a single integrated cutter assembly that can be operated with one hand. The object picking member, guide wheels, and cutter are merged into one compact unit that performs all necessary operations sequentially.
Solution Approach 2:
The paper picking member automatically picks up paper from the placement surface and feeds it to the cutter without requiring manual intervention. The guide wheels automatically fold and position the paper as it passes through, making the system self-servicing during operation.
2Manufacturing precision
If manual paper alignment is used, then paper can be positioned for cutting, but paper is torn very easily and alignment of vertical planes is difficult resulting in unparallel cutting
Solution Approach 1:
The patent introduces guide wheels as intermediary elements that mediate between the paper and the cutter. These guide wheels provide a controlled interface that automatically aligns the paper's vertical planes and maintains parallelism during the cutting process, eliminating the need for difficult manual alignment.
Solution Approach 2:
The guide wheels change the physical state of the paper by applying controlled pressure and guidance forces, transforming the paper from an unaligned state to a precisely aligned state ready for cutting. This parameter change in paper positioning is achieved automatically through the mechanical guidance system.
3Reliability
If paper is fed without automatic folding and tensioning, then feeding process is simple, but cutting success rate is low and paper tearing occurs frequently
Solution Approach 1:
The patent performs preliminary actions on the paper before cutting occurs. The object picking member picks up the paper in advance, the guide wheels fold and position it, and the advancing mechanism applies pressure to create proper tension. All these preparatory actions are completed automatically before the cutter engages the paper.
Solution Approach 2:
The patent ensures continuous useful action throughout the paper feeding and cutting process. The object picking member continuously picks paper, the guide wheels continuously guide and fold it, and the advancing mechanism continuously applies pressure, creating an unbroken sequence of beneficial actions that lead to successful cutting without interruption or manual intervention.
Data Source
AI summary
Provided herein is a paper cutter, including: a paper cutter housing which includes an accommodating space for accommodating a roll of paper to be cut, where a side wall of the paper cutter housing further includes two parallel guide rails, a holding portion is arranged on an outer wall of the paper cutter housing, and a pressure direction of the holding portion is capable of being perpendicular to a plane formed by the two parallel guide rails; and a paper cutting device which is connected to the side wall of the paper cutter housing and includes a cutter assembly, where the cutter assembly includes an object picking member and a cutter, and a direction corresponding to a cutting edge of the cutter is opposite to a paper feeding direction of the paper to be cut.