Binding Machine Magazine Lid Locking for Wire Buckling Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing reinforcing bar binding machines are prone to malfunctions due to wire buckling in the magazine, which can cause gaps between the cover and the case, leading to reel movement and operational issues.
Innovation Solution
The binding machine incorporates a magazine with a lid part that is regulated by multiple portions to prevent opening, ensuring the lid remains closed even when pushed by the reel or wire, using a lock member and urging members to maintain the lid in the closed state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lid part is made openable and closable for reel replacement, then the ease of operation is improved, but the reliability deteriorates due to potential gaps and reel movement
Solution Approach 1:
The patent applies preliminary anti-action by providing multiple regulating portions that preemptively counteract the opening force before the lid can actually open. The first regulating portion prevents opening from the front side, while the second regulating portion prevents opening from the rear side, creating a preemptive defense against the harmful effect of lid opening during wire buckling events.
2Device complexity
If a single lock lever is used to press the cover, then the device complexity is reduced, but the reliability deteriorates as gaps can still occur at unpressed portions
Solution Approach 1:
The patent applies segmentation by dividing the single locking function into multiple regulating portions distributed at different locations on the lid part. Instead of one集中式 lock lever, the locking function is segmented into a first regulating portion and a second regulating portion, each responsible for preventing opening at their respective locations, thereby ensuring complete coverage without increasing overall complexity.
Solution Approach 2:
The patent applies local quality by placing regulating portions at specific critical locations where opening is most likely to occur. The first regulating portion is positioned to prevent opening from the front side, while the second regulating portion is positioned to prevent opening from the rear side, providing targeted prevention at vulnerable locations rather than uniform locking across the entire lid.
3Productivity
If the wire is fed in reverse direction for winding, then the binding function is improved, but the harmful effect of wire buckling and lid pushing increases
Solution Approach 1:
The patent applies blessing in disguise by converting the harmful effect of wire buckling into a controlled condition. Instead of preventing wire buckling entirely, the regulating portions are designed to contain and control the buckling within the accommodation part, preventing it from reaching the lid part. The system accepts the harmful effect but neutralizes its damage through the multi-point regulation mechanism.
Data Source
AI summary
A binding machine includes a magazine including an accommodation part configured to accommodate a reel, and a lid part configured to cover the accommodation part to be openable and closable, a wire feeding unit configured to feed the wire in a forward direction in which the wire is pulled out from the magazine and in a reverse direction in which the wire is pulled back to the magazine, a curl forming unit configured to form a path along which the wire fed in the forward direction is to be wound around an object, a binding unit configured to twist the wire fed in the reverse direction and wound on the object, and a plurality of regulating portions configured to regulate opening of the lid part from a closed state in which the accommodation part is closed by the lid.