Rebar Binding Guide Spacing for Easier Bar Insertion
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Solution Overview
Problem
In reinforcing bar binding machines, the lower curl guide is urged to rotate upward, making it difficult to insert reinforcing bars between the curl guide and the lower curl guide due to the defined interval, which hinders the efficient binding process.
Innovation Solution
A binding machine design that includes a guide moving part to adjust the interval between the first and second guides, allowing the binding object to be easily inserted by changing the distance between them from a first distance to a second distance, shorter than the first, facilitating the insertion of reinforcing bars.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lower curl guide is urged to rotate upward to define a specific interval, then the wire guidance is improved, but the insertion of reinforcing bars becomes difficult
Solution Approach 1:
The lower curl guide is designed to be movable rather than fixed, allowing it to change position between operation phases. During wire feeding, it maintains an upper position for proper wire guidance, and during reinforcing bar insertion, it moves to a lower position to create sufficient clearance, thus resolving the contradiction between reliable wire guidance and ease of bar insertion
Solution Approach 2:
The lower curl guide moves to its lower position before the reinforcing bars need to be inserted, preliminarily creating the necessary clearance. This preliminary action ensures that the insertion path is ready in advance, making the subsequent bar insertion operation easy while maintaining wire guidance reliability when needed
Data Source
AI summary
A binding machine includes a body part, a feeding unit configured to feed a wire, a first guide and a second guide extending in a first direction from an end portion on one side of the body part, arranged with an interval, in which a binding object is inserted, in a second direction orthogonal to the first direction, and configured to guide the wire fed by the feeding unit, a twisting unit configured to twist the wire guided by the first guide and the second guide, and a guide moving part configured to change the interval from a first distance to a second distance shorter than the first distance.