Bar Feeder Device Using Three-Stage Magnetic Separation
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Solution Overview
Problem
Existing bar feeder devices struggle with efficiently picking up and counting bars of varying diameters from tangled bundles, often resulting in errors due to overlapping or twisting, which slows down the operating cycle and poses safety risks.
Innovation Solution
A feeder device utilizing three magnetic means: first magnetic means to lift bar ends, third magnetic means to form an intermediate pick-up plane, and second magnetic means to selectively pick up and deposit bars without errors, ensuring accurate counting and feeding to an operating machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If separate first and second magnetic pick-up means are used to automatically feed bars, then the productivity is improved, but errors occur in counting bars due to overlapping or twisting of bars with average to small diameters
Solution Approach 1:
The bar feeding process is divided into two distinct phases using separate magnetic pick-up means: first magnetic means lifts bars from the bundle in a controlled manner, and second magnetic means transfers them to the machine. This segmentation allows each magnetic means to perform its function optimally, preventing overlapping and ensuring accurate counting.
Solution Approach 2:
The first magnetic means performs a preliminary lifting action to raise bars from the bundle before the second magnetic means takes over for transfer. This preliminary action positions the bars in a controlled state, preventing twisting and overlapping that would cause counting errors.
2Measurement precision
If manual bar picking is used from tangled bundles, then bar counting can be controlled, but the operating cycle is slowed down and safety risks increase
Solution Approach 1:
The manual mechanical picking process is replaced with an automated magnetic field-based system. The magnetic means can quickly and accurately pick up bars without the slow and dangerous manual handling, maintaining counting precision while dramatically increasing speed and eliminating safety risks.
3Speed
If magnetic means pick up multiple overlapping bars together, then the feeding speed is improved, but the counting accuracy deteriorates
Solution Approach 1:
The system uses feedback from sensors and control systems to monitor the bar picking process. When bars are picked up, the system verifies the count and positioning, ensuring that overlapping or twisting does not lead to incorrect counting, while maintaining high feeding speed.
Solution Approach 2:
The magnetic means are designed with dynamic control capabilities, allowing them to adjust their magnetic field strength and positioning in real-time. This enables precise control over which bars are picked up and how they are positioned, preventing overlapping while maintaining high feeding speed.
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 device enables efficient, error-free picking and feeding of bars of any diameter, maintaining productivity and ensuring safety by preventing overlapping and misalignments, allowing for seamless operation with bars of different sizes.
Implementation Method 1
first magnetic means, disposed substantially in cooperation with an end part, or near the end, of the bundle of bars from which the bar or bars are to be picked up, and second magnetic means able to cooperate with said first magnetic means in order to selectively pick up the bar or bars to be sent to the machine
Data Source
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AI summary
Device (10) and method to feed bars, which picks up and removes selectively from a bundle (12) one bar (11) in order to dispose it for use in an operating machine, the device comprising first magnetic members (13), which separate from the bundle (12) an end segment of a plurality of bars (11) and dispose them on a plane distanced with respect to the bundle (12), and second magnetic members (21), which cooperate with the first magnetic members (13) so as to pick up at least one bar (11) at a time from the plurality of bars (11) and to prepare it for sending to the operating machine. The device (10) also comprises third magnetic members (50), which temporarily hold the bar or bars (11) picked up by the first magnetic members (13), forming substantially a pick-up plane, in an intermediate step, from which the second magnetic members (21) selectively pick up the bars to be sent to the machine.