Packaging Machine Tube Angular Position Control
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Solution Overview
Problem
Packaging machines face challenges in maintaining the precise angular position of packaging material tubes, leading to incorrect sealing and folding, resulting in rejected packages due to manual adjustments and potential twisting around the axis, which affects the quality and appearance of the packages.
Innovation Solution
A control device is integrated into the packaging machine to adjust the angular position of the tube using a driving roller and actuating mechanism, with sensors detecting edge and rotation deviations to generate control signals for PID controls, ensuring precise alignment and minimizing twisting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual adjustment of the tube angular position is performed, then the tube can be positioned correctly for sealing and folding, but production time is lost and packages are rejected during adjustment
Solution Approach 1:
The system performs self-adjustment of the tube angular position through automatic detection and correction mechanisms. Sensors detect the actual angular position of the tube, and the system automatically adjusts the positioning without requiring manual intervention, thereby maintaining precision while avoiding production stoppages.
Solution Approach 2:
The system implements a feedback loop where sensors continuously monitor the angular position of the tube and provide real-time data to the control system. Based on this feedback, the system makes automatic corrections to maintain the correct angular position, eliminating the need for manual adjustments and maintaining continuous production.
2Manufacturing precision
If the tube angular position is not precisely maintained, then manual adjustments are required frequently, but this increases production time and package rejection
Solution Approach 1:
The system implements a feedback loop where sensors continuously monitor the angular position of the tube and provide real-time data to the control system. Based on this feedback, the system makes automatic corrections to maintain the correct angular position, eliminating the need for manual adjustments and maintaining continuous production.
Solution Approach 2:
The system replaces manual mechanical adjustment with an automated control system that uses sensors and actuators to adjust the tube position. This substitution eliminates the time-consuming manual intervention while maintaining precise angular positioning.
3Manufacturing precision
If the tube twists around its axis, then the crease lines are misaligned with the jaws, but correcting this requires stopping production
Solution Approach 1:
The system implements a feedback loop where sensors continuously monitor the angular position of the tube and provide real-time data to the control system. Based on this feedback, the system makes automatic corrections to maintain the correct angular position, eliminating the need for manual adjustments and maintaining continuous production.
Solution Approach 2:
The system performs preliminary detection and correction of angular position deviations before they cause misalignment between crease lines and jaws. By continuously monitoring and adjusting the tube position in advance, the system prevents alignment errors from occurring, thereby maintaining production continuity.
4Productivity
If automated control is implemented to maintain tube position, then manual adjustments are eliminated, but device complexity increases
Solution Approach 1:
The system implements a feedback loop where sensors continuously monitor the angular position of the tube and provide real-time data to the control system. Based on this feedback, the system makes automatic corrections to maintain the correct angular position, eliminating the need for manual adjustments and maintaining continuous production.
Solution Approach 2:
The control system is designed to perform multiple functions: detecting tube position, calculating deviations, and actuating correction mechanisms. By integrating these functions into a single universal control system, the patent reduces overall device complexity while maintaining automated control capabilities.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The control device automatically corrects the tube's position in real-time, reducing the need for manual adjustments and minimizing package rejection, thereby improving the quality and consistency of packaging by maintaining accurate alignment and preventing twisting.
Implementation Method 1
The control device is a PID control device which controls a driving roller to minimise twisting of the tube around the axis
Data Source
AI summary
A packaging machine may be provided for producing packages from a packaging material advanced along an advancing path. The packaging material may have a longitudinal edge arranged along the advancing path and a mark configured to provide an indication about the position of the packaging material. The packaging machine may include a forming unit configured to fold the packaging material into a tube having a longitudinal axis arranged along the advancing path, a first sensor configured to detect the position of the edge and generate a first control signal, a second sensor configured to read the mark and to generate a second signal, and a control device having an actuation device configured to move the packaging material in a direction arranged transversally with respect to the advancing path based on the first control signal and second signal. A method for producing packages from a packaging material may additionally be provided.