Curved Guide-Bar Coloring Device for 3D Surface Precision
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Solution Overview
Problem
Conventional coloring tools used for 3D objects operate with a Cartesian coordinate system, resulting in a lack of elasticity and precision, leading to unnatural jagged curves and inefficient makeup application.
Innovation Solution
An automatic coloring device with a guide-bar, moving platform, and motor-driven wheels that follow a curve, allowing the coloring tool to move smoothly along the surface of 3D objects, improving precision and reducing energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a Cartesian coordinate system is used to control coloring tool movement, then the device structure is simple, but the coloring precision and smoothness deteriorate, resulting in jagged curves
Solution Approach 1:
The patent applies curvature by guiding the coloring tool along a curved trajectory that matches the 3D object's surface geometry. The guide bar is constrained to move along a predetermined curve in the horizontal direction, while the vertical movement follows the object's contour, creating smooth curved coloring paths instead of rigid Cartesian movements.
Solution Approach 2:
The patent introduces dynamic movement by allowing the guide bar to move both horizontally along a curve and vertically along the object's surface contour. The system transitions from static Cartesian positioning to dynamic curved trajectory following, enabling the coloring tool to adapt its path continuously along the 3D object's surface.
2Ease of operation
If rigid Cartesian movement is used for coloring tools, then the motion control is straightforward, but the coloring track becomes jagged and unnatural
Solution Approach 1:
The patent implements curved motion control by constraining the guide bar to a predetermined curve in the horizontal plane while simultaneously allowing vertical movement along the object's contour. This dual-constraint system produces smooth curved coloring tracks that naturally follow the 3D object's surface geometry.
Solution Approach 2:
The patent introduces an intermediary mechanism (the guide bar with curved constraints) between the simple Cartesian motion system and the required complex curved coloring path. This intermediary structure translates straightforward motor movements into elegant curved trajectories, mediating between control simplicity and aesthetic requirements.
3Device complexity
If manual makeup techniques are used, then the device complexity is low, but the coloring consistency and precision depend on user experience and vary
Solution Approach 1:
The patent implements self-service by enabling the coloring system to autonomously follow the 3D object's surface contours without requiring manual intervention. The guide bar automatically adjusts its position and orientation to match the object's geometry, and the coloring tool independently maintains consistent contact pressure and speed throughout the coloring process.
Solution Approach 2:
The patent replaces the mechanical system of manual makeup application with an automated mechanical system. The manual control mechanism is substituted by a guided motion system where the guide bar's curved trajectory and the object's geometric constraints work together to automatically achieve consistent coloring results.
4Device complexity
If conventional coloring methods are used, then the process is simple, but energy consumption increases due to inefficient movement patterns
Solution Approach 1:
The patent reduces energy consumption by optimizing the movement trajectory to follow curved paths that match the object's surface geometry. This eliminates unnecessary back-and-forth movements and redundant positioning adjustments, allowing the coloring tool to move efficiently along smooth arcs rather than inefficient Cartesian paths.
Solution Approach 2:
The patent implements dynamic trajectory optimization where the guide bar continuously adjusts its position and velocity to follow the object's contour. This dynamic adaptation eliminates idle movements and positioning corrections, maintaining optimal motion efficiency throughout the coloring process and reducing overall energy consumption.
Data Source
AI summary
An automatic coloring device for moving coloring tool along a curve includes a guide-bar, a moving platform, a coloring tool, a first moving member and a second moving member. The moving platform is movably disposed on the guide-bar, and the coloring tool is disposed on the moving platform. The first moving member controls the guide-bar to move along a curve, and the second moving member controls the moving platform to move along the guide-bar. An axle center of the guide-bar penetrates the plane where the curve is disposed.