Tape Cutter Blade Alignment via Positioning Pin
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Solution Overview
Problem
Existing tape cutting devices fail to effectively cut tapes when the fixed shear blade escapes from the movable shear blade, leading to inadequate cutting due to the inability of the blades to rub against each other.
Innovation Solution
A tape cutter design featuring a receiving portion with a receiving blade and a movable portion with a movable blade, where the blades overlap and rub against each other, and engage through respective engaging portions to ensure proper alignment and contact, allowing for effective cutting of the tape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the fixed shear blade escapes from the movable shear blade in the overlapping direction, then the blade alignment is lost, but the tape cannot be cut effectively
Solution Approach 1:
A positioning pin acts as an intermediary element between the movable portion and receiving portion. The positioning pin inserts into a positioning hole to maintain precise alignment between the movable shear blade and fixed shear blade, preventing escape in the overlapping direction while allowing the blades to rub against each other for effective cutting.
2Ease of operation
If the movable portion comes into contact with the receiving portion, then cutting function is enabled, but blade alignment may be lost without positioning mechanism
Solution Approach 1:
The positioning pin serves as a mediator that maintains precise blade alignment during the contact and separation operations. When the movable portion contacts the receiving portion, the positioning pin ensures the shear blades remain properly aligned, enabling reliable cutting 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
The design ensures consistent and accurate cutting of tapes by preventing the receiving blade from escaping, allowing it to properly overlap and rub against the movable blade, thereby ensuring effective cutting.
Implementation Method 1
The receiving blade and the movable blade overlap and rub against each other to a tape
Implementation Method 2
The receiving blade and the movable blade overlap and rub against each other to cut the tape
Data Source
AI summary
Provided is a tape cutter including a full-receiving portion having a full-receiving blade and a positioning hole, and a full-movable portion having a full-movable blade and a positioning pin, and that comes into contact with or separates from the full-receiving portion. The full-receiving blade and the full-movable blade overlap and rub against each other to cut a tape, and when the full-movable portion moves toward the full-receiving portion, the positioning hole and the positioning pin are engaged with each other, so that the full-receiving blade is positioned with respect to the full-movable blade in a direction in which the full-receiving blade and the full-movable blade overlap.