Automatic Splicing Device for Packaging Material Webs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Automatic splicing of full-width packaging material webs faces challenges in achieving consistent quality and efficiency due to the need for precise pressure and heat application, as well as correct alignment of material edges for a liquid-tight seal.
Innovation Solution
A method and device utilizing a detector, such as an imaging device, to determine the position of marks on the material web, guiding it for cutting and sealing, ensuring accurate alignment and positioning of the cutting and sealing arms for efficient splicing, with the cutting unit fixed and the arms tiltable for angled cuts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If automatic splicing is performed on full-width material webs, then productivity is improved, but manufacturing precision deteriorates due to difficulty in achieving correct alignment and consistent quality
Solution Approach 1:
The patent replaces manual mechanical alignment operations with an automated vision system. A detector (camera) captures images of registration marks on the material web, and a control unit processes these images to automatically determine the position and orientation of the web edges, eliminating the need for manual visual inspection and mechanical adjustment while achieving high precision alignment.
Solution Approach 2:
The patent uses optical copying through imaging devices to create a digital representation of the material web's physical state. The detector captures images of the web and its registration marks, creating an optical copy that the control unit analyzes to determine precise positioning, enabling automatic alignment without direct mechanical measurement.
2Reliability
If precise alignment and sealing are achieved, then reliability is improved, but device complexity increases due to multiple actuators and control systems
Solution Approach 1:
The patent combines multiple functions into integrated components. The sealing unit incorporates both sealing arms and cutting arms that can perform multiple operations (sealing, cutting, positioning) through coordinated movement of a single actuator system, reducing the number of separate components while maintaining reliable sealing functionality.
Solution Approach 2:
The patent employs dynamic, adjustable components rather than fixed structures. The sealing arms are equipped with actuators that can dynamically adjust their position and angle based on real-time feedback from the vision system, allowing the system to adapt to variations in material web positioning while maintaining consistent sealing quality.
3Manufacturing precision
If manual splicing operations are performed, then manufacturing precision is maintained, but loss of time increases due to manual intervention requirements
Solution Approach 1:
The system performs self-alignment and self-positioning through automated vision guidance. The detector automatically identifies registration marks, the control unit calculates the required positioning adjustments, and the actuators execute the movement without human intervention, enabling the system to service itself and eliminate manual operation time.
Solution Approach 2:
The patent implements a closed-loop feedback system where the detector continuously monitors the position of registration marks on the material web, provides real-time position information to the control unit, which then adjusts the actuators to achieve precise alignment, creating an automatic feedback-controlled positioning system that eliminates manual measurement and adjustment time.
Data Source
AI summary
A method for splicing a web of packaging material is provided. The method involves guiding a first web of packaging material through an automatic splicing device, determining the position of at least one mark of the first web of packaging material by a detector, moving the first web of packaging material based on the position of the at least one mark of the first web of packaging material such that a specific area of the first web of packaging material is arranged in proximity to a cutting unit, and cutting the first web of packaging material in order to form a separate leading part of the first web of packaging material. The method may also involve introducing a new leading part of a second web of packaging material into the automatic splicing device, determining the position of at least one mark of the second web of packaging material, moving the second web of packaging material based on the position of the at least one mark of the second web of packaging material such that a specific area of the second web of packaging material is arranged in proximity to a sealing arm of the cutting unit, and sealing the separate leading part of the first web of packaging material and the second web of packaging material.