Rebar Binding Machine Control for Variable Bar Diameter and Position

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Solution Overview

Problem

Existing reinforcing bar binding machines lack the ability to adapt control settings based on the specific type and diameter of reinforcing bars and their position, leading to inconsistent binding performance.

Innovation Solution

A binding machine system that includes a wire feeding unit and a binding unit controlled by reinforcing bar identification information, along with a transfer robot and an information acquisition unit, allowing for dynamic adjustment of the binding operation based on the type and position of the reinforcing bars.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If binding machines use preset set values for binding operations, then the device complexity is reduced and ease of operation is improved, but binding performance consistency deteriorates when reinforcing bars have different diameters or positions

Engineering Contradiction:
Improvebinding performance consistencyVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The binding machine incorporates an information acquisition unit that detects reinforcing bar identification information (diameter, position, type) and feeds this data back to the control unit. The control unit then adjusts binding parameters based on this feedback, enabling consistent binding performance across different reinforcing bar specifications without requiring complex manual programming for each scenario.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The binding machine automatically acquires reinforcing bar information through its information acquisition unit and self-adjusts binding parameters without requiring external intervention or complex preset configurations. The system serves itself by detecting bar characteristics and autonomously optimizing binding operations for each specific case.

Inventive Principle:
Principle #25Self-service

2Adaptability or versatility

If binding machines are designed for specific reinforcing bar types with fixed parameters, then manufacturing precision for that specific type is improved, but adaptability to different reinforcing bar diameters and positions deteriorates

Engineering Contradiction:
Improveadaptability to different reinforcing barsVSAvoidbinding performance
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The binding machine is designed as a universal device capable of handling multiple reinforcing bar types, diameters, and positions. The control unit stores multiple binding parameter sets corresponding to different reinforcing bar specifications and automatically selects the appropriate parameters based on the detected bar characteristics, enabling one machine to perform multiple binding functions with consistent precision.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The binding machine transitions from static fixed parameters to dynamic adjustable parameters. The control unit dynamically modifies binding parameters (such as wire feeding amount, twisting force, binding position) based on real-time detection of reinforcing bar characteristics, allowing the system to adapt its behavior to match the specific requirements of each binding task.

Inventive Principle:
Principle #15Dynamics

3Manufacturing precision

If manual adjustment of binding parameters is required for each reinforcing bar type, then binding performance can be optimized, but productivity deteriorates due to increased operation time

Engineering Contradiction:
Improvebinding performanceVSAvoidbinding operation speed
Core Design Contradiction:
Manufacturing precisionVSProductivity

Solution Approach 1:

The system replaces manual mechanical adjustment of binding parameters with automated electronic control. The information acquisition unit detects reinforcing bar characteristics and the control unit automatically selects and applies appropriate binding parameters, eliminating the need for manual parameter adjustment while maintaining optimal binding performance and significantly increasing operation speed.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentEP4215692A1Binding machine, binding system, method for controlling binding device, and program
Publication Date: 2023.07.26 MAX CO LTD
  • EP4215692A1 patent drawingFigure 1A
  • EP4215692A1 patent drawingFigure 1B
  • EP4215692A1 patent drawingFigure 1C

AI summary

A binding machine for binding reinforcing bars with a wire, the binding machine including: a wire feeding unit that feeds a wire; and a binding unit configured to twist the wire. The wire feeding unit and the binding unit are controlled based on reinforcing bar identification information related to reinforcing bars to be bound with the wire.