Bale Wrapping Control System for Stability Management
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Solution Overview
Problem
Existing bale wrapping machines face challenges with irregular bale shapes and non-uniform mass distribution, leading to instability and safety risks during wrapping, which reduces productivity and requires constant operator monitoring.
Innovation Solution
A bale wrapping apparatus equipped with sensors to detect forces applied to the bale during rotation, allowing for automatic adjustment of rotation speed to prevent instability, ensuring safe and efficient wrapping without constant operator supervision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the bale rotates at high speed during wrapping, then productivity is improved, but stability deteriorates due to irregular mass distribution causing the bale to fall off the platform
Solution Approach 1:
The control system continuously monitors the bale's position and stability during rotation, and automatically adjusts the rotation speed in real-time based on detected conditions. This feedback mechanism allows the system to maintain high productivity while preventing instability by dynamically adapting the rotation parameters to the actual bale characteristics.
Solution Approach 2:
The rotation speed is made variable rather than constant, allowing the system to adapt dynamically to the irregular mass distribution of each bale. The control device adjusts the rotation parameters during the wrapping process to optimize both productivity and stability for each specific bale configuration.
2Reliability
If the operator frequently reduces rotation rate to prevent instability, then safety is improved, but productivity deteriorates due to frequent speed reductions
Solution Approach 1:
The control system performs automatic monitoring and adjustment of rotation speed without requiring continuous operator intervention. The system serves itself by detecting instability conditions and autonomously reducing the rotation rate only when necessary, thereby maintaining safety while minimizing productivity loss from speed reductions.
Solution Approach 2:
The automated feedback control system continuously monitors bale stability and adjusts rotation speed proactively, enabling the operator to focus on other tasks while the system maintains safety automatically. This reduces the need for manual intervention and maintains higher overall productivity compared to frequent operator-initiated speed reductions.
3Reliability
If an operator continuously monitors the machine during wrapping, then safety is improved, but productivity deteriorates as the operator cannot perform other activities
Solution Approach 1:
The control system performs continuous safety monitoring and automatic adjustment of rotation parameters without requiring operator attention. This self-monitoring capability frees the operator to perform other productive activities such as preparing the next bale, thereby improving overall operational efficiency while maintaining safety standards.
Solution Approach 2:
The manual monitoring and control function is replaced by an automated electronic control system with sensors and actuators. This substitution eliminates the need for continuous operator involvement in safety monitoring while maintaining or even improving the responsiveness of the safety system.
Data Source
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AI summary
An apparatus for wrapping bales, which comprises a supporting platform (2) for a bale (A) composed of previously cut agricultural products, such as grass, wheat, corn, hay, forage and the like, and means (3) for moving the bale (A), when it is placed on the platform (2), according to at least two mutually perpendicular rotation axes (B, C). At least one magazine (4) for supplying a covering element (D) that can be wound automatically around the bale (A), during its rotation about the rotation axes (B, C), for its wrapping, faces the platform (2) and is proximate thereto. The apparatus comprises at least one sensor for the optionally indirect detection of the forces applied to at least one respective support of the bale (A) during its rotation; the at least one sensor is controlled by an assembly for the control of the movement means (3), in order to adjust the rotation rate of the bale (A), about the rotation axes (B, C), as a function of the force values detected by the at least one sensor.