Magnetic stirrer with lifting table
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The manual operation of lifting tables with magnetic stirrers poses safety risks, particularly in hazardous applications, as it can lead to accidental knocking over or tipping of heating baths, and inadequate control during chemical reactions or temperature fluctuations.
Innovation Solution
An electric motor-driven lifting table with a wireless or wired interface controlled by a magnetic stirrer's control unit, which automatically raises and lowers the platform based on predefined conditions or sensor measurements, ensuring safe operation and reducing manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation of lifting table is used, then ease of operation is improved, but safety and reliability deteriorate due to accidental knocking over or tipping of heating baths
Solution Approach 1:
The patent replaces the manual mechanical operation of the lifting table with an automated electrical system. An electric motor drives the lifting table through a lifting mechanism, eliminating the need for manual cranking. The control unit automatically controls the motor based on process parameters, substituting human mechanical operation with an automated electromechanical system that prevents accidental knocking over or tipping of heating baths.
Solution Approach 2:
The system enables self-service operation where the lifting table and heating bath automatically raise and lower themselves based on control unit decisions. The control unit monitors process parameters and autonomously operates the lifting mechanism without requiring continuous manual intervention, allowing the system to serve itself while maintaining safety.
2Reliability
If automatic control is implemented, then safety and reliability are improved, but device complexity increases due to electric motor and control interface
Solution Approach 1:
The control unit of the magnetic stirrer is designed to perform multiple functions: it controls both the magnetic stirring operation and the lifting table operation through the wireless interface. By making the control unit universal and multi-functional, the patent avoids adding a separate dedicated control system for the lifting table, thereby limiting the increase in device complexity while still achieving automatic safety control.
Solution Approach 2:
The patent introduces a wireless interface as an intermediary communication channel between the magnetic stirrer control unit and the lifting table electric motor. This wireless interface acts as a mediator that transmits control signals without requiring physical cable connections, simplifying the overall system architecture and reducing complexity compared to wired alternatives while enabling automatic control functionality.
3Device complexity
If lifting table is manually operated, then device complexity is reduced, but productivity deteriorates due to time loss in manual raising and lowering
Solution Approach 1:
The automated lifting table enables continuous operation by eliminating the interruptions caused by manual raising and lowering of the heating bath. The control unit can automatically adjust the lifting table position as needed during the chemical reaction process, maintaining continuous useful action without stopping for manual intervention, thereby improving productivity while the wireless interface keeps the control system relatively simple.
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
This solution enhances safety by preventing accidental movements of the heating bath, maintaining a closed fume hood, and automatically terminating processes to prevent hazards, while reducing the risk of accidents and improving operational efficiency.
Implementation Method 1
the lifting table has an electric motor to raise and lower the platform
Implementation Method 2
a rotatingly driven magnet is usually provided in the magnetic stirrer beneath the heating plate and generates a magnetic field that accordingly acts on the magnetic stir bar
Implementation Method 3
The liquid can be simultaneously heated during the stirring by the heating plate
Data Source
AI summary
The invention relates to an arrangement comprising a magnetic stirrer, having a heating plate and a control unit for controlling the magnetic stirrer, and a lifting table having a platform on which the magnetic stirrer can be placed, characterized in that the lifting table has an electric motor to raise and lower the platform, and in that a wireless or wired interface is provided between the magnetic stirrer and the lifting table and the control unit is configured to control the electric motor, in particular the power supply of the electric motor, via the interface.