Rebar Binding Guide Geometry for Faster Bar Insertion
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Solution Overview
Problem
The existing binding machines face difficulties in inserting reinforcing bars between the guide part and the lower guide, especially when the reinforcing bars butt against the tip end of the guide part, making the operation cumbersome and time-consuming.
Innovation Solution
A binding machine design featuring a first guide and a second guide with a predetermined interval, where the first guide has an inclined induction part that decreases the interval between the guides from the tip end to the base end, facilitating easy insertion of the reinforcing bars by guiding them into the space between the guides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the guide part and lower guide are positioned with a predetermined interval, then the binding operation can be performed with reinforcing bars inserted between them, but the reinforcing bars cannot be inserted when they butt against the tip end of the guide part
Solution Approach 1:
The tip end of the guide part is designed with a curved surface that gradually decreases the interval between the guide part and lower guide. This curved geometry allows reinforcing bars to be smoothly guided into the insertion space without butting against a sharp tip, enabling easy insertion while maintaining the predetermined interval for binding operations.
2Reliability
If the operator securely inserts the reinforcing bars between the guide part and lower guide, then the binding operation can be performed correctly, but it takes more time to perform the operation
Solution Approach 1:
The curved surface at the tip end of the guide part performs a preliminary guiding action that automatically directs reinforcing bars into the correct insertion position between the guide part and lower guide. This preliminary guidance eliminates the need for operators to carefully and time-consuming align and securely insert the bars, while ensuring they are correctly positioned for reliable binding operations.
Data Source
AI summary
A binding machine includes a body part, a feeding unit configured to feed a wire, a first guide extending in a first direction from an end portion on one side of the body part, configured to guide the wire fed by the feeding unit, and having a first induction part provided on a tip end-side in the first direction, a second guide spaced from the first guide 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, and a twisting unit configured to twist the wire. The first induction part is constituted by a surface inclined in a direction in which the interval between the first guide and the second guide decreases from a tip end-side toward a base end-side of the first induction part in the first direction.