Robot Wrapping Machine Dynamic Load Positioning
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Solution Overview
Problem
Existing packaging machines face constraints in installing the sheath storage reel relative to the load conveyor position, requiring precise load positioning and often necessitating transverse and longitudinal centering devices, which limits flexibility and efficiency.
Innovation Solution
A method and device that determine and synchronize the positioning of the cover transfer and accumulation device with the load's axes, allowing for flexible placement of the sheath reel and eliminating the need for longitudinal centering, by measuring and programming the load's axes to adjust the sheath perimeter and movement, enabling adaptive wrapping without stopping the load.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the sheath storage reel is placed close to the ground with its axis extending parallel or at an angle to the transfer conveyor, then the sheath can be supplied to the wrapping station, but the installation flexibility is reduced and precise load positioning is required
Solution Approach 1:
The robot arm is made dynamically repositionable to adapt to different load positions on the conveyor. The control system dynamically adjusts the robot's position based on detected load location, allowing the wrapping station to handle loads at various positions without requiring precise manual positioning or complex centering devices.
Solution Approach 2:
The patent replaces mechanical centering devices and rigid positioning mechanisms with a robot-controlled system that uses sensors to detect load position and automatically adjusts the wrapping station position accordingly. This substitution eliminates the need for complex mechanical alignment systems.
2Productivity
If the transverse axis of the wrapping station coincides with the supply axis of the sheath, then the wrapping operation can be performed, but the installation constraints for the storage reel and conveyor are increased
Solution Approach 1:
The robot arm can dynamically adjust its position and orientation to accommodate different sheath supply angles and load positions. This dynamic adaptability allows the wrapping station to perform efficiently without requiring the transverse axis to coincide with the sheath supply axis, thereby reducing installation constraints.
Solution Approach 2:
The robot-controlled wrapping station is designed to be universal and can handle various configurations of sheath supply axes and conveyor positions. The system can adapt to different orientations and positions, making it multi-functional and reducing the need for specialized installation arrangements.
3Ease of operation
If the longitudinal axis of the load is fixed to correspond to the longitudinal axis of the transfer conveyor, then the load positioning is simplified, but the ability to handle deformed loads is reduced
Solution Approach 1:
The system uses sensors to detect the actual position and orientation of the load on the conveyor and provides feedback to the control system. Based on this feedback, the robot arm dynamically adjusts its position and the wrapping station orientation to accommodate deformed or misaligned loads, while still maintaining simple operation through automated positioning.
Solution Approach 2:
The robot arm and wrapping station are made dynamically adjustable to adapt to varying load positions and orientations. This dynamic capability allows the system to handle deformed loads without requiring the load longitudinal axis to be precisely fixed to the conveyor axis, thereby maintaining both ease of operation and adaptability.
Data Source
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AI summary
A wrapping machine comprises a transfer and accumulation device DTA comprising an accumulator element 20 on which a part of the sleeve is wound, and a mechanism 21 for spacing apart the open end of the sleeve following transfer to the covering station 13. According to the invention, a programmable control device 34 determines the position and/or the inclination angle of the supply axis of the load by synchronizing the control for positioning the transfer device DTA with the data relating to the position of the load CH. This results in positioning of said transfer device in a manner depending on the spatial position of the load to be wrapped.