Double-tumble mixer for complete paint mixing
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Solution Overview
Problem
Existing mixers, such as gyroscopic and vortex mixers, face challenges in achieving complete and efficient mixing of substances like paint, particularly in smaller containers, and struggle with automation and robustness, leading to incomplete mixing and difficulties in loading/unloading.
Innovation Solution
A multi-axis mixing apparatus utilizing a double-tumble motion with two perpendicular tumble axes, where a container is rotated about a primary and secondary axis simultaneously, without a spin axis, to enhance mixing efficiency and automation capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional single-axis mixing methods are used, then the mixing process is simpler, but mixing completeness is insufficient
Solution Approach 1:
The patent transitions from single-axis mixing to double-tumble mixing by adding a second rotational dimension. The container is tumbled about a first axis while simultaneously rotating about a second axis perpendicular to the first, creating three-dimensional mixing motion that dramatically improves mixing completeness by causing more thorough contact between colorant and vehicle throughout the container volume.
2Extent of automation
If traditional mixing apparatus are used, then the structure is simpler, but automation suitability is poor
Solution Approach 1:
The mixing apparatus is designed with a standardized container interface and dual-rotation mechanism that can accommodate various container sizes and types. The system includes features such as a container receiving station, dual motors for independent axis control, and a standardized clamping mechanism that enables automated operation while maintaining versatility across different mixing applications.
3Productivity
If traditional mixers are used, then loading and unloading is simpler, but mixing speed is too slow
Solution Approach 1:
The apparatus positions the container in a predetermined orientation within the mixing chamber before initiating the double-tumble sequence. The first and second rotatable assemblies are pre-configured with appropriate speeds and synchronization ratios to optimize mixing efficiency from the start, eliminating the need for intermediate adjustments during the mixing process.
4Loss of time
If single-axis rotation is used, then energy consumption is lower, but mixing time is too long
Solution Approach 1:
The double-tumble mixing system operates both rotational axes simultaneously and continuously throughout the mixing cycle. The first rotatable assembly maintains constant tumbling motion while the second rotatable assembly provides continuous rotational movement, ensuring that colorant particles are constantly redistributed and contacted with fresh vehicle throughout the entire mixing duration, thereby reducing total mixing time.
Data Source
AI summary
A multi-axis mixing apparatus includes a first motor and a frame supporting the first motor, the first motor configured to selectively rotate a first rotatable assembly about a first axis. The apparatus also includes a second rotatable assembly rotatably supported by the first rotatable assembly, where the second rotatable assembly is rotatable about a second axis. The second rotatable assembly includes a clamping mechanism configured to receive and hold a container containing contents to be mixed, where when the first motor causes the first rotatable assembly to rotate about the first axis, the rotation of the first rotatable assembly about the first axis causes the second rotatable assembly to rotate about the second axis, and where the second axis is substantially perpendicular to the first axis.