Rebar Binding Machine Layout to Shield the Control Unit From Iron Debris

Solution Overview

Problem

Reinforcing bar binding machines face issues with iron powders and chips generated during the binding process being introduced into the machine's main body and attaching to the control unit's connector terminals, leading to potential operational defects.

Innovation Solution

The binding machine is designed with a partitioned internal structure, where the control unit is housed in a separate space from the gripping and drive units, preventing iron powders and chips from reaching the control unit by positioning it in the space with the drive unit and using ribs to segregate the areas, thus shielding the control unit from debris.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the control board is arranged between the twisting mechanism and the twisting motor, then the control unit can be positioned within the binding machine main body, but iron powders and chips generated during binding operations can attach to the control unit's connector terminals

Engineering Contradiction:

Improvecontrol unit accessibilityVSAvoidcontrol unit functionality

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The binding machine main body is divided into two separate spaces by a partition wall: a first space accommodating the gripping part and generating iron powders/chips, and a second space accommodating the control unit. This segmentation physically isolates the control unit from harmful debris while maintaining its operational accessibility within the main body.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The control unit is extracted from the general working area and placed in a dedicated enclosed space within the binding machine main body. This extraction removes the control unit from the environment where iron powders and chips are generated, protecting it while keeping it integrated in the overall structure.

Inventive Principle:

Principle #2Taking out (Extraction)

2Productivity

If the control unit is positioned in the first space with the gripping part, then it can be closer to the binding operation, but iron powders and chips will attach to the control unit

Engineering Contradiction:

Improvebinding operation efficiencyVSAvoidiron powders and chips attachment

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The binding machine main body is divided into two separate spaces by a partition wall: a first space accommodating the gripping part and generating iron powders/chips, and a second space accommodating the control unit. This segmentation physically isolates the control unit from harmful debris while maintaining its operational accessibility within the main body.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A partition wall acts as an intermediary structure between the gripping part and the control unit. This partition wall blocks the path of iron powders and chips generated during binding operations, preventing them from reaching the control unit while allowing the machine to maintain its compact structure.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If the control board is arranged extending between the twisting mechanism and the twisting motor, then it can be integrated into the binding machine main body, but the structure becomes vulnerable to shocks and lacks structural stiffness

Engineering Contradiction:

Improvecontrol unit integrationVSAvoidstructural stiffness

Core Design Contradiction:

Device complexityVSStrength

Solution Approach 1:

The binding machine main body is divided into two separate spaces by a partition wall: a first space accommodating the gripping part and generating iron powders/chips, and a second space accommodating the control unit. This segmentation physically isolates the control unit from harmful debris while maintaining its operational accessibility within the main body.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The partition wall providing the virtual plane division is designed with sufficient thickness and structural properties to provide both separation functionality and mechanical support. This localized structural element enhances the overall structural stiffness of the binding machine main body while serving the primary function of separating the two spaces.

Inventive Principle:

Principle #3Local quality

Data Source

PatentUS11795710B2Binding machine

Publication Date: 2023.10.24 MAX CO LTD

AI summary

A binding machine includes a wire feeding unit which feeds a wire, a curl guide which curls the fed wire around an object to be bound, a binding unit including a twisting shaft provided to be rotatable around an axis, a gripping part provided at one end of the twisting shaft and a drive unit provided to the other end of the twisting shaft, a control unit which controls the drive unit, and a binding machine main body which accommodates therein the binding unit and the control unit. When an inside of the binding machine main body is divided by a virtual plane perpendicular to the axis to be partitioned into a first space in which the gripping part is accommodated and a second space in which the drive unit is accommodated, the control unit is arranged in the second space in which the drive unit is accommodated.