Packaging Web Positioning Bar for Precise Functional Unit Alignment
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Solution Overview
Problem
High-speed packaging material production machines require precise positioning of functional units across the width of the packaging material, which is labor-intensive and prone to errors due to variations in web width and lane configuration, necessitating a rapid and accurate positioning system.
Innovation Solution
A positioning arrangement featuring a fixed support and a moveable bar with linear encoders and pneumatic locking units allows for precise and independent positioning of functional units, such as laser, cutting, or printing devices, across the width of the packaging material, enabling accurate alignment and adjustment according to the web's dimensions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning of functional units is used, then the machine can be simpler in structure, but the positioning precision deteriorates and labor intensity increases
Solution Approach 1:
The patent replaces manual mechanical positioning with an automated positioning system that uses sensors to detect web width and lane positions, then automatically calculates and adjusts the positions of functional units. This substitution of mechanical manual adjustment with an automated control system resolves the contradiction by achieving high positioning precision without requiring complex manual intervention mechanisms.
Solution Approach 2:
The positioning system performs self-positioning by automatically detecting web characteristics and adjusting functional unit positions without external intervention. The system uses sensors to measure web width and lane positions, then autonomously calculates required adjustments and executes positioning, enabling the system to service itself and achieve high precision without complex manual positioning mechanisms.
2Adaptability or versatility
If fixed positioning of functional units is used, then the device structure is simpler, but the adaptability to different web dimensions deteriorates
Solution Approach 1:
The patent implements dynamic positioning where functional units can be automatically repositioned based on detected web width and lane configuration. The positioning system is not fixed but can adjust positions in real-time according to different packaging materials, achieving high adaptability while using automated control to manage the complexity of dynamic adjustment mechanisms.
Solution Approach 2:
The system changes positioning parameters (positions of functional units) based on detected web characteristics. By using sensors to measure web width and lane positions, the system dynamically adjusts positioning parameters to match different packaging materials, achieving versatility without requiring complex mechanical reconfiguration mechanisms for each material type.
3Productivity
If high-speed web transportation is used, then the productivity increases, but the positioning stability deteriorates
Solution Approach 1:
The patent implements a feedback-based positioning system where sensors continuously detect web width and lane positions during high-speed transportation. The system uses this real-time feedback to calculate and execute positioning adjustments, ensuring stable and accurate positioning even at high production speeds. The closed-loop feedback control compensates for vibrations and positioning deviations caused by high-speed operation.
Data Source
AI summary
A packaging material producing machine, comprising a transport device being configured to guide and move a web of packaging material, and a processing system is provided. The processing system comprises a functional unit connected to the at least one carrier and a positioning arrangement that comprises a fixed support and a bar arranged and moveable in parallel with said support, and at least one carrier comprising an attachment device being configured to selectively attach the carrier to only one of said fixed support and said bar.