Wire Binding Machine Control for Correct Rebar Positioning
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Solution Overview
Problem
The existing binding machines for reinforcing bars lack a mechanism to ensure that the binding operation is executed only when the binding object is correctly positioned between the fixed claws, leading to potential careless binding due to operator distance and alignment challenges.
Innovation Solution
A binding machine with a control unit that detects signals from an operation part and a direction detection unit, ensuring the binding operation is only executed when the binding object is correctly aligned and inserted, using a guide part to direct the wire and a twisting unit to bind the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the operator operates the activation switch from a distance, then the operator can reach the binding object on the floor surface, but it becomes difficult to check whether the binding object is correctly positioned between the two fixed claws
Solution Approach 1:
The patent introduces a sensor that detects whether the binding object is correctly positioned between the two fixed claws and provides feedback to the control unit. The control unit then enables or disables the activation switch based on this feedback, ensuring that the binding operation can only be executed when the object is properly positioned, thus resolving the contradiction between operator reachability and position checking accuracy
Solution Approach 2:
The patent replaces the manual visual checking mechanism with an automated sensor-based detection system. The sensor automatically detects the presence and position of the binding object, eliminating the need for the operator to visually verify positioning, thereby resolving the contradiction caused by operator distance
2Productivity
If the activation switch is operated without position verification, then the binding operation can be executed quickly, but careless binding operations may occur when the binding object is not correctly positioned
Solution Approach 1:
The patent implements a preliminary detection action where the sensor verifies the correct positioning of the binding object before the binding operation is permitted to proceed. The control unit checks the sensor signal and only enables the activation switch when proper positioning is confirmed, ensuring that binding operations are executed only under correct conditions without significantly impacting overall productivity
Solution Approach 2:
The control unit continuously monitors the sensor feedback regarding object positioning and dynamically controls the activation switch state. This feedback mechanism ensures that binding operations are prevented when objects are mispositioned, thereby eliminating careless binding operations while maintaining efficient operation when objects are correctly positioned
Data Source
AI summary
A binding machine includes a first body part having an operation part, a second body part having a feeding unit configured to feed a wire, a guide part configured to guide the wire to a surrounding of a binding object, and a twisting unit configured to twist the wire, thereby binding the binding object, an elongated connecting part configured to connect the first body part and the second body part, a first output unit configured to detect an operation on the operation part and to output a first signal, a second output unit configured to detect that the binding object is inserted in a feeding path of the wire and to output a second signal, and a control unit that controls the feeding unit and the twisting unit to execute a binding operation when the control unit detects the first signal and the second signal.