Construction Mixer Speed Control for Variable Material Mixing
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Solution Overview
Problem
Existing manually operated construction mixers lack robustness and adaptability to various mixing tasks, leading to potential damage and suboptimal mixing quality.
Innovation Solution
A manually operated construction mixing machine with a control unit and actuating device, allowing precise speed adjustment and integration of sensors, user interfaces, and a compact housing design for enhanced durability and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional manually operated construction mixers are used, then basic mixing function is provided, but robustness and adaptability to various mixing tasks are insufficient
Solution Approach 1:
The patent implements variable speed control allowing the mixing machine to adapt its rotational speed to different mixing tasks and material viscosities. The control unit enables continuous speed adjustment, making the device versatile for various applications while maintaining reliable operation across different conditions
Solution Approach 2:
The patent changes the operational parameter of rotational speed from fixed to variable. By allowing speed to be adjusted according to task requirements, the mixing machine achieves adaptability to various mixing tasks while maintaining robustness through controlled parameter variation
2Manufacturing precision
If fixed speed operation is used, then device simplicity is maintained, but mixing quality and adaptability to different materials are reduced
Solution Approach 1:
The patent replaces mechanical speed adjustment mechanisms with an electronic control system. The control unit with actuating device electronically regulates motor speed, improving mixing quality through precise speed control while managing device complexity through integrated electronic components
3Productivity
If high speed mixing is used, then productivity is improved, but dust generation and spillage increase
Solution Approach 1:
The patent implements control systems that regulate mixing speed based on operational conditions. The control unit monitors and adjusts speed to optimize productivity while minimizing dust generation and spillage, creating a feedback mechanism that balances speed with harmful factor reduction
4Power
If high power motor is used, then mixing capability is improved, but noise level and energy consumption increase
Solution Approach 1:
The patent uses variable speed control to match motor power output to actual mixing requirements. The control unit adjusts speed dynamically, maintaining high mixing capability when needed while reducing noise level during lower intensity tasks through controlled power variation
Data Source
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AI summary
The invention relates to a manually operated construction mixing machine (1), in particular a manually operated mixing machine for stirring and/or mixing building materials, with a housing (2) in the interior (35) of which a drive motor (5) is at least partially enclosed, wherein the drive motor (5) has at least one drive shaft (7) which can be directly or indirectly connected to a mixing and/or stirring tool. Furthermore, an actuating device (13) is provided by means of which the drive motor can be actuated.According to the invention, the actuating device (13) is coupled to a control device by means of which the drive motor (5) can be electronically controlled when the actuating device (13) is actuated, wherein it is preferably provided that the control device is part of an electronic module (64) which is arranged in the interior of the housing (35), preferably in the area of the housing cover (3), and/or above the drive motor (5) and is electrically connected to the drive motor (5).