Binding Machine Guide Geometry for Easier Rebar 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 are butted against the tip end of the guide part, leading to inefficient operation.
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 easily inserted when butted 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 guides the reinforcing bar smoothly into the insertion space, eliminating the difficulty of direct insertion against a flat tip end.
Solution Approach 2:
The invention introduces a dimensional change by creating a tapered or curved interval reduction from the tip end toward the base end of the guide part. This gradual interval reduction in the longitudinal dimension provides a guiding path that facilitates easy insertion of the reinforcing bar.
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 the operation time increases
Solution Approach 1:
The curved surface on the guide part performs a preliminary guiding action that automatically positions the reinforcing bar correctly as it is inserted. This preliminary guidance eliminates the need for careful manual positioning by the operator, ensuring correct placement while reducing insertion time.
Solution Approach 2:
The guide part's curved surface design enables self-guidance of the reinforcing bar during insertion. The geometry itself provides the positioning function, eliminating the need for additional operator intervention or complex positioning mechanisms.
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.