Magnetic stirrer having lifting table
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Solution Overview
Problem
The manual operation of lifting tables with magnetic stirrers and heating baths poses safety risks, especially in applications with increased hazards, as improper handling can lead to accidents such as knocking over or tipping over of the equipment, and exposure to splashing liquids or explosions.
Innovation Solution
An electric motor-controlled lifting table with a wireless or wired interface to the magnetic stirrer's control unit allows for automated raising and lowering of the platform, ensuring safe operation by preventing accidental manual errors and maintaining a closed fume hood, with sensors for temperature monitoring and automatic platform lowering in case of critical conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual operation of lifting table is used, then ease of operation is maintained, but safety risk increases due to accidental tipping or improper handling
Solution Approach 1:
The patent replaces the manual mechanical operation system with an automated electrical control system. The lifting table is equipped with an electric motor that can be controlled via a wireless or wired interface from the magnetic stirrer's control unit, eliminating the need for manual cranking and reducing safety risks associated with improper handling.
Solution Approach 2:
The system enables automatic control where the magnetic stirrer's control unit can autonomously operate the lifting table's electric motor through the interface. This self-service capability allows the platform to be raised and lowered automatically based on process requirements, reducing human intervention and associated safety risks.
2Reliability
If automated control is implemented, then safety is improved by preventing manual errors, but device complexity increases due to additional control systems
Solution Approach 1:
The patent utilizes the existing control unit of the magnetic stirrer to also control the lifting table's electric motor through a wireless or wired interface. This multi-functionality approach allows one control unit to manage both the magnetic stirrer and the lifting table, avoiding the need for a separate control system and thereby limiting the increase in device complexity.
Solution Approach 2:
The patent introduces a wireless or wired interface as an intermediary between the magnetic stirrer's control unit and the lifting table's electric motor. This interface layer enables communication and control while keeping the system modular and manageable, preventing excessive complexity from arising.
3Productivity
If platform is manually raised and lowered, then adaptability is maintained for different operations, but loss of time occurs due to manual intervention
Solution Approach 1:
The system allows the platform to be automatically raised and lowered in advance of when manual intervention would be needed. The control unit can initiate lifting or lowering operations automatically based on process parameters, eliminating the time loss associated with manual intervention and improving overall process 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 solution significantly reduces safety risks by eliminating manual operation errors, ensuring timely termination of processes, and protecting the operator from hazards like splashing liquids or explosions, while also reducing the complexity of cable management and providing a cost advantage by powering the lifting table through the magnetic stirrer.
Implementation Method 1
the lifting table has an electric motor to raise and lower the platform
Implementation Method 2
a rotating magnet is usually provided below the hotplate in the magnetic stirrer, which generates a magnetic field that acts accordingly on the magnetic stirring bar
Implementation Method 3
The hotplate allows the liquid to be heated simultaneously while stirring
Data Source
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AI summary
The invention relates to an assembly comprising a magnetic stirrer which has a heating plate and a control unit for controlling the magnetic stirrer, and comprising a lifting table which has a platform onto which the magnetic stirrer can be placed, characterised in that the lifting table has an electric motor in order 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 designed to control the electric motor, in particular the power supply of the electric motor, via the interface.