Rebar Binding Machine Wire Regulation for Stable Curl Feeding
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Solution Overview
Problem
Existing reinforcing bar binding machines face challenges in stabilizing the position of wires intersecting the direction of feed in the magazine, leading to variations in the axial direction of the annular feeding path, which can result in the wire end not entering the guide properly, especially when the diameter of the reinforcing bars increases.
Innovation Solution
The binding machine incorporates a curl forming portion with a curling guide and a leading guide to regulate the wire movement, and a magazine with a feeding path forming portion and a regulating portion to stabilize the wire position along the axial direction of the annular feeding path, ensuring the wire is correctly led from the curling guide to the binding portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the diameter of the annular feeding path of the wire is increased to accommodate larger reinforcing bars, then the binding machine can handle larger reinforcing bars, but the position of the wire along the axial direction varies in the feeding path
Solution Approach 1:
A regulating portion is introduced as an intermediary element in the feeding path forming portion of the magazine. This regulating portion actively controls and stabilizes the wire position in the axial direction, preventing variation that would otherwise occur when the annular feeding path diameter is increased for larger reinforcing bars.
2Ease of operation
If the position of the wire in the direction intersecting the feed direction is biased in the magazine, then the wire may be easier to feed, but the distal end of the wire may not enter the guide positioned below the curl arm
Solution Approach 1:
The regulating portion performs preliminary action by pre-positioning and stabilizing the wire in the axial direction before the wire reaches the curl arm and guide. This ensures that when the wire is fed through the system, its distal end correctly enters the guide positioned below the curl arm, preventing feeding failures.
3Adaptability or versatility
If the diameter of reinforcing bars increases, then the binding machine can accommodate larger structures, but the wire position variation increases making binding unreliable
Solution Approach 1:
The regulating portion acts as a mediator between the wire feeding mechanism and the curl arm. It compensates for the increased wire position variation that occurs when binding larger reinforcing bars, ensuring reliable wire delivery and binding performance across different reinforcing bar sizes.
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A binding machine includes a magazine configured to accommodate a wire, a wire feeding portion configured to feed the wire accommodated in the magazine, a curl forming portion configured to constitute an annular feeding path for winding the wire fed by the wire feeding portion around a binding object, and a binding portion configured to twist the wire wound around the binding object. The curl forming portion includes a curling guide that curls the wire fed by the wire feeding portion, and a leading guide that leads the wire curled by the curling guide to the binding portion. The magazine includes a feeding path forming portion that forms a feeding path of the wire, and a regulating portion that regulates movement of the wire in a direction intersecting a direction in which the wire is fed in the feeding path forming portion.