Binding Machine Wire-Feeder Feedback for Insertion Detection
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Solution Overview
Problem
Users of binding machines struggle to recognize the timing at which the machine detects wire insertion and starts the feeding operation, leading to potential loose binding of reinforcing bars.
Innovation Solution
A binding machine with a wire feeder and controller that changes states to indicate when the wire is inserted, allowing the user to recognize the start of motor-driven wire feeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the wire feeding operation is started automatically when the wire is inserted between the feed gears, then the binding operation can be performed efficiently, but the user cannot recognize at what timing the machine detects wire insertion and starts feeding
Solution Approach 1:
The control unit provides visual feedback by switching the display between first and second states to indicate when wire insertion is detected and when wire feeding is started. This feedback mechanism resolves the contradiction by making the automatic detection and feeding process visible to the user, eliminating the information loss while maintaining automatic operation efficiency
Solution Approach 2:
The display changes its state (visual appearance) to communicate different operational statuses to the user. This visual state change serves as a clear signal that the machine has detected wire insertion and is about to start or has started the feeding operation, solving the user recognition problem while preserving automatic operation
2Loss of information
If the display shows continuous operation status, then the user can recognize the feeding process, but the display may not be clearly visible in all working conditions
Solution Approach 1:
The display alternates between first and second states in a periodic manner, switching at specific intervals related to the wire feeding cycle. This periodic switching ensures the display provides timely status information without requiring continuous illumination, maintaining visibility while being energy-efficient and adaptable to different working conditions
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
Enables users to confidently initiate the wire feeding process, ensuring secure binding of reinforcing bars by providing clear feedback on wire insertion detection.
Implementation Method 1
a feed motor configured to rotate in a first rotation direction to drive the feed members to feed a wire in the first direction
Implementation Method 2
a binding wire twisting mechanism that twists the wire by rotationally driving the gripping mechanism
Data Source
AI summary
A binding machine includes: a wire feeder; a curl forming unit forming a wire feeding path for winding a wire fed in a first direction by the wire feeder; a binding unit configured to twist a wire wound around the objects to be bound; and a controller configured to control the wire feeder and the binding unit. The wire feeder includes a pair of feed members configured to clamp a wire and feed a wire by a rotation operation, and a feed motor configured to rotate in a first rotation direction to drive the feed members to feed a wire in the first direction, and the controller changes a state into a first state and a second state to feed a wire in the first direction, when a wire is inserted into a position where a wire is feedable in the first direction by the pair of feed members.