Wire Retraction Guide Layout for Binding Machine Feed Jams
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Solution Overview
Problem
Existing binding machines face difficulties in removing wires that deviate from the feeding path and become buckled, leading to feeding troubles and potential failures.
Innovation Solution
Incorporating a retraction guide part in the binding machine to manage wire feeding, allowing wires to be retracted downstream of the binding unit, even when obstacles block the path, preventing buckling and facilitating easy wire removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wire is fed to the curl guide in a state in which there is an obstacle blocking the feeding path, then the wire cannot be fed forward and feeding trouble occurs, but without the retraction guide part the wire becomes buckled and difficult to remove
Solution Approach 1:
The guide structure is segmented into multiple functional parts: the curl guide for normal wire feeding, and the retraction guide part for wire removal. This segmentation allows the system to handle different operational states (normal feeding vs. obstacle presence) independently, resolving the contradiction between feeding reliability and wire removal ease.
Solution Approach 2:
The retraction guide part acts as an intermediary structure that provides an alternative path for the wire when the normal feeding path is blocked. This intermediary guide enables the wire to be retracted upstream without buckling, maintaining both feeding reliability and ease of wire removal.
2Device complexity
If no retraction guide part is provided, then the structure is simpler, but the wire buckles and cannot be easily removed when feeding trouble occurs
Solution Approach 1:
The guide structure is divided into the curl guide for normal operation and the retraction guide part for exception handling. This segmentation adds minimal complexity while significantly improving wire removal ease, as the retraction guide is only activated when feeding troubles occur.
Solution Approach 2:
The retraction guide part is designed with local quality - it is positioned and shaped specifically to handle wire retraction only in the downstream region where buckling would normally occur. This localized solution minimizes overall structure complexity while effectively addressing the wire removal problem.
3Ease of operation
If the wire is retracted through the retraction guide part, then buckling is suppressed and wire removal is facilitated, but the device structure becomes more complex
Solution Approach 1:
The retraction guide part is merged with the existing curl guide structure, sharing common components and spatial arrangement. This merging allows the retraction function to be added with minimal increase in overall device complexity, as the two guide parts work together in a coordinated manner.
Data Source
AI summary
A binding machine includes a wire feeding unit configured to feed a wire to be wound on an object to be bound, a binding unit configured to twist the wire wound on the object to be bound, a curl guide configured to curl the wire being fed by the wire feeding unit, an inductive guide configured to guide the wire curled by the curl guide toward the binding unit, and a retraction guide part configured to retract the wire to a downstream side of the binding unit with respect to a feeding direction of the wire that is fed by the wire feeding unit in a direction of curling the wire by the curl guide.