Lifting Magnet Maximum Attraction Notification for Timely Conveyance
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Solution Overview
Problem
Conventional magnet working machines lack a notification system to inform operators when the attraction quantity of a lifting magnet reaches its maximum, leading to delays in starting conveyance work and reduced work efficiency due to operator hesitation.
Innovation Solution
A notification system that includes a detector to monitor the attraction quantity, a determination part to calculate when the maximum attraction quantity is reached, and a notification control part to alert the operator through a vibration element, allowing for timely initiation of subsequent work.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the conveyance work is delayed until the attraction quantity reaches the maximum attraction quantity, then the load attraction reliability is improved, but the work efficiency deteriorates due to operator hesitation
Solution Approach 1:
The system implements feedback by detecting the attraction quantity through current/voltage monitoring and providing real-time notification to the operator when the maximum attraction quantity is reached. This feedback mechanism eliminates operator hesitation by clearly indicating when the magnet is ready for conveyance work, thus resolving the contradiction between reliability and work efficiency.
Solution Approach 2:
The notification system performs preliminary action by alerting the operator in advance when the maximum attraction quantity is reached, allowing the operator to prepare for and immediately initiate conveyance work. This preliminary notification ensures that the magnet is fully charged before conveyance begins, maintaining reliability while improving efficiency.
2Reliability
If the operator waits for the maximum attraction quantity before starting conveyance work, then the load security is improved, but the time loss increases due to lack of notification
Solution Approach 1:
The notification system provides real-time feedback to the operator about the attraction quantity status, eliminating unnecessary waiting time. The operator can immediately start conveyance work upon receiving the notification that maximum attraction is reached, thus reducing time loss while maintaining load security.
Solution Approach 2:
The system monitors and determines the attraction quantity automatically without requiring operator intervention or estimation. The detector and determination part self-serve by continuously monitoring electrical parameters and calculating attraction quantity, enabling timely notification and reducing idle time.
3Productivity
If the notification system continuously monitors the attraction quantity, then the work efficiency is improved, but the device complexity increases
Solution Approach 1:
The notification system uses electrical current and voltage as intermediary parameters to indirectly measure attraction quantity. Instead of directly measuring the complex magnetic attraction force, the system monitors easily measurable electrical parameters and calculates attraction quantity from these intermediaries, thus improving work efficiency without significantly increasing device complexity.
Solution Approach 2:
The system replaces direct mechanical or physical measurement of attraction quantity with electrical measurement methods. By using electrical sensors and calculations based on electrical parameters, the system achieves continuous monitoring with simpler and more reliable components, balancing work efficiency improvement with acceptable device complexity.
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 system enables operators to promptly start conveyance work once the maximum attraction quantity is reached, enhancing work efficiency by providing real-time notification of the attraction quantity's status.
Implementation Method 1
a lifting magnet 6 attached to a distal end of an arm 5 and having an attraction quantity changing in accordance with an electric supply
Implementation Method 2
a notifier 122 configured to notify an operator of the state of the lifting magnet 6; wherein the notifier 122 includes a vibration element 1221 arranged at a manipulation member
Data Source
Figure 1
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AI summary
A notification system includes: a notifier which notifies an operator of a state of a lifting magnet; a sensor which detects at least one of a voltage, an electric current, and an electric power supplied for exciting the lifting magnet; a determination part which determines, based on detection data from the sensor, whether an attraction quantity of the lifting magnet reaches a maximum attraction quantity after excitation of the lifting magnet is started; and a notification control part which causes the notifier to notify that the attraction quantity reaches the maximum attraction quantity when the determination part determines that the attraction quantity reaches the maximum attraction quantity.