Rebar Binding Machine Using Parallel Thin Wires for Secure Tying
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Solution Overview
Problem
Existing reinforcing bar binding machines require a large force to bind reinforcing bars due to the use of thick wires, which also lack sufficient binding strength and are prone to loosening or coming off.
Innovation Solution
A binding machine that uses multiple thin wires, fed in parallel, to wind and twist around the reinforcing bars, reducing the required force and enhancing binding strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a thick wire exceeding 1.5 mm in diameter is used to secure binding strength, then the binding strength is improved, but the rigidity of the wire is enhanced requiring a large force for binding
Solution Approach 1:
The patent divides the binding function into multiple thin wires (two or more wires) instead of using a single thick wire. Each wire has a diameter of 1.5 mm or less, but collectively they provide sufficient binding strength while requiring less force for twisting and binding operations.
2Strength
If a thick wire is used to ensure binding strength, then the binding strength is improved, but the wire is prone to loosening or coming off
Solution Approach 1:
The patent uses two or more thin wires instead of a single thick wire. This segmentation allows the wires to be more flexible and easier to twist tightly around reinforcing bars, creating a more reliable binding that is less prone to loosening or coming off while maintaining sufficient binding strength.
3Strength
If a thick wire is used to secure binding strength, then the binding strength is improved, but the rigidity is enhanced making binding difficult
Solution Approach 1:
The patent employs multiple thin wires (two or more wires with diameter of 1.5 mm or less) which are more flexible and easier to manipulate than a single thick wire. This segmentation improves ease of operation during binding while collectively providing the necessary binding strength through the combined effect of multiple wires.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The machine achieves secure binding with reduced force by using multiple thin wires, ensuring the binding strength is maintained without loosening.
Implementation Method 1
a feeding unit (3A, 3B) which feeds two or more wires (W, W) and winds the wires (W, W) around a binding object (S)
Implementation Method 2
a binding unit (7A, 7B) which binds the binding object (S) by gripping and twisting the two or more wire (W, W) wound around the binding object (S) by the feeding unit
Data Source
AI summary
It provides a reinforcing bar binding machine capable of surely wrapping and binding a wire to a binding object. The reinforcing bar binding machine includes a magazine in which two wires are housed so as to be drawable, a curl guide unit which winds the arranged wires around the reinforcing bar, by the operation of feeding the parallel wires at the curl guide unit to wind around the reinforcing bar, a wire feeding unit which to wrap around the reinforcing bar with the wires wound around the reinforcing bar, and a binding unit which twists a intersecting portion between one end side and the other end side of the wire wound around the reinforcing bar.