Binding Machine Curl Guide Regulation for Larger Rebar

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Solution Overview

Problem

Existing binding machines face challenges in maintaining stability and preventing positional misalignment of the curl forming portion when binding larger diameter reinforcing bars, as the increased length and force applied to the curl forming portion lead to potential deformation and misalignment.

Innovation Solution

A binding machine design that includes a main body part, an arm part for curling the wire, a curl guide part for guiding the wire to the binding portion, and a regulating member to control the relative displacement between the arm and curl guide parts, supported by tip guide parts to maintain stability and prevent deformation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the diameter of the feeding path of the wire is increased to bind larger diameter reinforcing bars, then the ability to bind larger reinforcing bars is improved, but the likelihood of positional misalignment and deformation of the curl forming portion increases

Engineering Contradiction:

Improveability to bind larger reinforcing barsVSAvoidpositional alignment of curl forming portion

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The curl forming portion is divided into separate functional components: the arm part for curling the wire and the curl guide part for guiding it to the binding portion. This segmentation allows each component to be optimized independently while maintaining precise relative positioning through the regulating member.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A regulating member is introduced as an intermediary element between the arm part and the curl guide part. This regulating member constrains relative displacement between the two components, ensuring positional alignment is maintained even when the feeding path diameter is increased for larger reinforcing bars.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Stability of the object's composition

If the length of the curl forming portion is increased to maintain stability, then the stability of binding is improved, but the force applied to the curl forming portion due to drop or collision increases

Engineering Contradiction:

Improvestability of bindingVSAvoidforce applied to curl forming portion

Core Design Contradiction:

Stability of the object's compositionVSForce

Solution Approach 1:

By segmenting the curl forming portion into the arm part and curl guide part, the structure can be designed with appropriate length for stability while the regulating member prevents excessive force accumulation. The separation allows force distribution across multiple connection points rather than concentrating it at a single long component.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The regulating member acts as a force-distributing intermediary between the arm part and curl guide part. It constrains relative displacement while distributing impact forces from drops or collisions across multiple attachment points, preventing excessive force from concentrating on any single component.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250257581A1Binding machine

Publication Date: 2025.08.14 MAX CO LTD

AI summary

A binding machine configured to wind a wire around a to-be-bound object, includes: a main body part; an arm part attached to the main body part and configured to curl the wire; a curl guide part attached to the main body part and configured to guide the wire curled by the arm part to a binding portion; and a regulating member configured to regulate relative displacement between the arm part and the curl guide part.