Dynamic Decoration Alignment for Cylindrical Objects
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Solution Overview
Problem
Existing decoration methods struggle to apply new designs precisely on objects with existing décors that have variable sections or irregular dimensions, leading to visual defects and costly rejects, especially on cylindrical objects like bottles.
Innovation Solution
A decoration method that involves measuring at least two identification points of the existing décor, performing dynamic correction of localization points for the new décor using theoretical information, and applying the new décor with improved precision, utilizing a control system equipped with detection devices like linear cameras.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If only one starting point is detected and recorded as reference, then the starting point of the new décor can be positioned correctly with respect to the existing décor, but the rest of the new décor will be misaligned, impairing the appearance of the object
Solution Approach 1:
The patent divides the décor positioning task into multiple measurement points (at least two identification points) rather than relying on a single starting point. This segmentation allows for detection of both the starting point and intermediate or ending points, enabling comprehensive correction of the entire décor layout along the rotation path, thereby resolving the misalignment issue while maintaining precise starting point positioning.
Solution Approach 2:
The patent implements a feedback mechanism where the detected identification points from the existing décor are used to dynamically correct the localization points of the new décor. The control system compares the measured positions with theoretical positions and adjusts the new décor positioning accordingly, ensuring both starting point accuracy and overall décor alignment throughout the object's rotation.
2Ease of operation
If the object is driven in rotation to apply décor on cylindrical surfaces, then the external surface can be marked, but the printing length differs from the theoretical décor length, especially with large dimensions and dimensional tolerances
Solution Approach 1:
The patent uses feedback from detected identification points on the existing décor to dynamically correct the positioning of the new décor. By measuring actual positions of at least two identification points during object rotation and comparing them with theoretical positions, the control system compensates for variations in printing length caused by rotational driving, dimensional tolerances, and object geometry, thereby maintaining precise décor length despite the rotational application process.
Solution Approach 2:
The patent dynamically adjusts positioning parameters (localization points) of the new décor based on measured identification points. The control system modifies the theoretical décor parameters to match actual measured positions, accommodating variations in object dimensions and rotation characteristics, thus maintaining manufacturing precision while preserving the ease of rotational decoration application.
3Measurement precision
If a detection device is provided to measure the starting point of the existing décor, then the new décor can be positioned relative to the existing décor, but this method is not satisfactory when the existing décor has variable section lengths or widths
Solution Approach 1:
The patent extends the measurement approach from a single starting point to multiple identification points (at least two) distributed along the existing décor. This segmentation enables the detection device to capture information about variable section lengths and widths, allowing the system to adapt to different décor configurations while maintaining accurate positioning of the new décor relative to the existing variable-pattern décor.
Solution Approach 2:
The patent dynamically adjusts the positioning parameters of the new décor based on measurements from multiple identification points on the existing décor. By measuring at least two points and using this data to correct localization points, the system adapts to variations in existing décor geometry (variable lengths and widths) while maintaining positioning accuracy, thereby increasing method versatility without sacrificing measurement precision.
Data Source
AI summary
The present invention relates to a decoration method, for applying a new décor (170) on a surface (2) of an object (1) including an existing décor (120), characterized in that the method comprises the following successive steps: a step a) for measuring at least two identification points (120a, 120b, 120f) of the existing décor (120) applied on the surface (2) of the object (1); a step b) for dynamic correction of localization points (170a, 170b, 170f) of the new décor (170) to be applied on the surface (2) of the object (1), using the identification points (120a, 120b, 120f) measured during the measuring step a); and a step c) for application of the new décor (170) on the surface (2) of the object (1), by using the localization points (170a, 170b, 170f) determined in the dynamic correction step b). The invention also relates to a control system and a decoration machine comprising such a control system.