Bag Neck Sealer Protective Piece Shielding Fixed Blade Edge
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Solution Overview
Problem
Conventional bag neck sealers lack a protection device for the user's fingers, making them vulnerable to injury during operation due to the exposed fixed blade unit.
Innovation Solution
A bag neck sealer design featuring a fixed blade unit with a protective piece biased by an elastic member, which shields the edge of the fixed blade, preventing finger injuries and ensuring safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the fixed blade unit is disposed at an outer side of the base without a protection device, then the cutting function is simple and easy to manufacture, but the user's fingers may be injured during operation
Solution Approach 1:
A protective piece is introduced as an intermediary component between the user's fingers and the fixed blade edge. This protective piece acts as a mediator that shields the harmful blade edge while allowing the cutting function to operate normally when needed.
Solution Approach 2:
The fixed blade unit is segmented into functional components: the cutting edge portion and the protective portion. The protective piece is separated as an independent component that can be installed and removed, allowing the blade to serve both cutting and safety functions through structural segmentation.
2Object-affected harmful factors
If a protective piece is added to shield the fixed blade edge, then user safety is improved, but the device complexity increases
Solution Approach 1:
The protective piece is merged with the fixed blade unit structure through connection means such as adhesion or mechanical attachment. This merging allows the protective function to be integrated into the existing blade unit without requiring a completely separate protection system.
Solution Approach 2:
The protective piece serves multiple functions: it shields the blade edge from accidental contact, guides the bag during insertion, and can be removed or adjusted if needed. This multi-functionality reduces the need for additional separate components.
3Reliability
If the protective piece is biased by an elastic member, then the protection is automatic and reliable, but the manufacturing complexity increases
Solution Approach 1:
The elastic member provides self-service by automatically biasing the protective piece into the shielding position without requiring external control mechanisms. The protective piece self-adjusts to maintain contact with the blade edge and provides continuous protection through the elastic force.
Solution Approach 2:
The protective piece is designed with dynamic characteristics through the elastic member, allowing it to move between protected and exposed positions. This dynamic design enables the protection mechanism to adapt to different operational states while maintaining reliability.
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 protective piece effectively shields the user's fingers from the fixed blade, enhancing safety and preventing injuries during the sealing and cutting process.
Implementation Method 1
A protective piece, which is biased by an elastic member, is connected to be against to one side of the fixed blade opposite to the seat to shield the edge of the fixed blade
Data Source
AI summary
A bag neck sealer includes a base. The base includes an installation wheel, a rotary wheel, a press plate, a movable blade unit and a fixed blade unit. The fixed blade unit has a seat. The seat includes a fixed blade and a protective piece thereon. The protective piece is connected with an elastic member to be against one side of the fixed blade opposite to the seat to shield the edge of the fixed blade. Therefore, when the user operates the bag neck sealer, the user's fingers can be protected from the fixed blade through the protective piece, preventing the fingers from being hurt so as to enhance the safety of the bag neck sealer.