Rebar Binding Hook Locking to Cut Reactive Force and Motor Load
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Solution Overview
Problem
Existing reinforcing bar binding machines face a significant reactive force when locking wires between hooks, leading to increased load on the motor and inefficiency in the binding process.
Innovation Solution
A binding machine with a locking member comprising a first and second hook, where the hooks can move to lock and unlock the wire, reducing the reactive force by allowing controlled movement to prevent wire disengagement, thereby reducing the load on the motor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the hooks press the wire firmly to lock it securely, then the reliability of wire locking is improved, but the reactive force increases and motor load increases
Solution Approach 1:
The locking member is designed with movable hooks that can dynamically adjust their position. The first hook moves toward the second hook during locking operation, and the hooks can move away from each other during unlocking. This dynamic movement allows the system to maintain reliable wire locking while reducing reactive force by avoiding continuous rigid pressing.
Solution Approach 2:
The system changes the physical state of the locking member from static to movable. By enabling the hooks to change their relative position (moving toward each other for locking, moving away for unlocking), the system optimizes the balance between locking reliability and reactive force reduction.
2Reliability
If the hooks move toward each other to lock the wire, then the wire locking reliability is improved, but the motor load increases due to reactive force
Solution Approach 1:
The locking member incorporates movable hooks that change position during operation. The first hook moves toward the second hook to achieve reliable locking, and can move away during unlocking. This dynamic design allows the motor to operate only during position changes rather than continuously overcoming reactive force, reducing overall motor load.
3Power
If the hooks are made movable to reduce reactive force, then the motor load is reduced, but the complexity of the locking member increases
Solution Approach 1:
The locking member is designed with simple movable hooks that can move toward and away from each other. This dynamic structure achieves motor load reduction while maintaining relatively simple construction, as the movability is integrated into the basic hook design rather than requiring complex additional mechanisms.
Data Source
AI summary
A binding machine includes a wire feeding unit, a curl forming unit, a cutting unit, and a binding unit. The binding unit includes a locking member that includes a first hook and a second hook and that locks the wire by moving the first hook toward the second hook. The locking member includes a locking part that locks the wire in a state in which the first hook has been moved toward the second hook, and an unlocking part that makes it possible for the first hook to be movable away from the second hook with such an amount of movement that the locked wire does not come off between the first hook and the second hook.