Binding Machine Reel Offset Control for Reverse Wire Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Reinforcing bar binding machines experience wire feeding failures due to excessive wire bending, leading to entanglement and wire detachment from the reel, caused by lateral movement of the wire during reverse feeding.
Innovation Solution
A binding machine design that includes an accommodation portion offsetting the reel along the axial direction, featuring a restricting portion within the wire passage to counteract the bending force, preventing excessive wire bending and entanglement by providing a surface for the wire to contact and reducing the likelihood of wire detachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the reel is offset to one side in the left-right direction with respect to the wire feeding portion, then the wire can be fed more smoothly in the forward direction, but the wire bends excessively during reverse feeding and becomes entangled
Solution Approach 1:
A restricting portion is introduced as an intermediary element between the reel and wire feeding portion. This restricting portion mediates the wire's movement during reverse feeding by providing a contact point that prevents excessive lateral displacement, thereby stopping the wire from bending and becoming entangled while preserving the reel offset configuration for smooth forward feeding
2Adaptability or versatility
If the wire is fed in the reverse direction, then the wire can be pulled back and wrapped around the reinforcing bar, but the wire bends and moves laterally along the axial direction of the reel
Solution Approach 1:
The restricting portion is positioned in advance within the wire passage to counteract the lateral movement tendency of the wire during reverse feeding. By providing a pre-positioned contact surface that opposes the bending force, the wire's lateral displacement is prevented before it can cause entanglement or shape instability
3Manufacturing precision
If the amount of bending of the wire increases, then the wire can be wrapped more tightly around the reinforcing bar, but the wire easily comes off the reel from the flange portion
Solution Approach 1:
The restricting portion serves as a mediator that controls wire movement during reverse feeding. By limiting lateral displacement through controlled contact, it prevents the wire from bending excessively and detaching from the reel flange, while still allowing sufficient wire movement to achieve proper wrapping tightness around the reinforcing bar
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively reduces wire bending, prevents entanglement, and ensures stable wire feeding, thereby enhancing the reliability of the binding process and reducing the need for reel reloading.
Implementation Method 1
a restricting portion, in a wire passage between the reel accommodated in the accommodation portion and the wire feeding portion, which protrudes inward of the accommodation portion and has a restricting surface with which the wire bent in the other direction along the axial direction of the reel between the reel and the wire feeding portion comes in contact
Data Source
AI summary
A binding machine includes: an accommodation portion accommodating a reel around which a wire is wound; a wire feeding portion configured to feed the wire in a forward direction, winds the wire around a binding object, feeds the wire in a reverse direction, and wraps the wire around the binding object; and a torsion portion that twists the wire. The accommodation portion accommodates the reel such that the reel is offset in one direction along an axial direction of the reel with respect to the wire feeding portion. The binding machine further includes a restricting portion, in a wire passage between the reel and the wire feeding portion, which protrudes inward of the accommodation portion and has a restricting surface with which the wire bent in the other direction along the axial direction of the reel between the reel and the wire feeding portion comes in contact.