Web Guide Groove with Suction Orifices for Dust Removal
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Solution Overview
Problem
Existing web guiding systems for packaging materials, particularly those requiring high sterilization and minimal dust generation, face inefficiencies in dust removal due to mechanical wear at the edges of laminated packaging materials, and existing solutions like vacuum cleaners and compressed air systems are not optimal for limited air mass flow.
Innovation Solution
A V-shaped groove web guide apparatus with suction orifices arranged symmetrically on either side of the longitudinal axis, utilizing a partial vacuum of 1-5 kPa to efficiently remove dust, featuring a cylindrical sector assembly for easy manufacturing and maintenance, and sloping bottom surfaces for smooth web engagement and release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If mechanical web guiding is used to guide packaging material edges, then web positioning accuracy is improved, but dust generation increases due to mechanical wear
Solution Approach 1:
The invention extracts and removes the harmful dust particles generated during web guiding by providing suction openings that communicate with a vacuum source. The groove structure captures dust at its generation point near the web edge, and the suction system removes it before it can contaminate the packaging material or environment.
Solution Approach 2:
The groove structure acts as an intermediary element between the web edge and the vacuum suction system. It captures dust particles generated at the web edge and channels them toward the suction openings, facilitating efficient dust removal while maintaining the necessary mechanical contact for web guidance.
2Productivity
If vacuum systems are used to remove dust from packaging material edges, then dust removal efficiency is improved, but air mass flow requirements increase
Solution Approach 1:
The invention applies local quality by positioning suction openings specifically at locations where dust is generated during web guiding. The groove structure concentrates dust particles in specific zones, allowing targeted suction that removes dust efficiently with minimal air flow rather than requiring system-wide high-volume ventilation.
Solution Approach 2:
The suction system applies partial action by focusing vacuum force only where dust generation occurs during web guiding, rather than applying uniform air flow across the entire web. This localized approach achieves effective dust removal with reduced overall air mass flow requirements.
3Stability of the object's composition
If grooves with long walls are used to guide web edges, then web guidance stability is improved, but manufacturing complexity increases
Solution Approach 1:
The invention segments the groove structure into functional zones: guidance walls for stable web positioning and suction openings for dust removal. The groove may be divided into sections with different wall lengths, where longer walls provide guidance stability and shorter sections incorporate suction openings to reduce manufacturing complexity.
Solution Approach 2:
The groove structure serves multiple functions simultaneously: it guides the web edge for stable positioning, captures dust particles through its geometry, and channels dust to suction openings. This multi-functionality reduces the need for separate components, simplifying manufacturing while maintaining guidance stability.
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 apparatus effectively removes dust with reduced air mass flow, ensuring efficient dust removal and improved performance in high-sterilization packaging processes by providing symmetrical suction and smooth abutment initiation and termination for the packaging material edges.
Implementation Method 1
utilizing a partial vacuum of 1-5 kPa to efficiently remove dust
Data Source
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AI summary
The present invention relates to an apparatus for guiding a web of packaging material. The apparatus comprises a groove (111) extending along the direction of transport (A) of the web, in which groove (111) a longitudinal edge of the web is intended to run during advancement of the web, abutting a bottom of the groove (111). The apparatus differs from prior art devices in that it further includes suction orifices (115) distributed along the length of the groove (111) for applying a partial vacuum for the removal of air and dust from the groove (111) and its surroundings.