Perforating Roller Structure for Adjustable Aluminum Foil Venting
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Solution Overview
Problem
Existing aluminum foil products are tight, preventing gas exchange between the product and the environment, and existing perforation systems lack flexibility and adaptability for different perforation densities and structures.
Innovation Solution
A perforation roller with metal ring-shaped knives featuring sharp-pointed teeth is integrated into an aluminum foil winder, allowing for continuous perforation of foil sheets and winding them onto smaller rolls, with adjustable perforation density and structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional tight aluminum foil is used, then packaging integrity is maintained, but gas exchange between product and environment is prevented
Solution Approach 1:
The aluminum foil is segmented through perforations created by the rotating roller with pins. The roller divides the continuous foil into perforated sections that allow gas exchange while maintaining overall packaging integrity. Each pin creates individual perforations that collectively enable controlled breathing throughout the packaging material.
2Adaptability or versatility
If existing perforation systems are used, then some perforation is achieved, but flexibility and adaptability for different perforation densities and structures are limited
Solution Approach 1:
The perforation system employs a rotating roller with pins that can be dynamically adjusted in terms of rotation speed, pin configuration, and engagement depth. This dynamic mechanism allows variable perforation densities to be achieved by modifying operational parameters rather than requiring completely different device configurations, thereby enhancing adaptability while controlling complexity.
3Productivity
If a roller with perforating pins is used, then continuous perforation is achieved, but the system requires precise alignment and counter pressure control
Solution Approach 1:
The rotating roller serves multiple functions simultaneously: it provides the counter pressure needed for perforation, acts as the perforating tool through its pins, and enables continuous operation through rotation. This multi-functionality integrates alignment and pressure control into a single operational mechanism, reducing the complexity of precise alignment requirements while maintaining continuous perforation capability.
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
Enables easy assembly and modification of existing winders to perforate aluminum foil with varying densities, facilitating gas exchange and enhancing product usability.
Implementation Method 1
a plurality of metal ring-shaped perforation knives 18, the outer contours of which have the shape of sharp-pointed teeth 21
Data Source
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AI summary
Aluminum foil winder with a set of unwinding, tensioning, cutting and winding devices including a unwinder (2), a tension roller, guide rollers (5), a foil tension adjuster (6), a set of rotating tensioning and pressing rollers (7,8) mounted on a mounting frame (15) attached to a frame of the winder (1), a knife (9), a drum (11) with pins (12) and a pressing brush (10) and a gripper of the finished roll (13). The tensioning roller (7) in the set of pressure rollers (8,7) on the mounting frame (15) additionally includes a number of metal ring-shaped perforating knives (18) whose outer outline has the shape of sharp-pointed teeth (21) fixedly fixed on a metal mandrel (17).), the knives (18) are separated by a plurality of spacer disks (19) and the ends of the perforation roller (7) are placed in bearings. The tensioning-perforation roller of the aluminum foil winder, containing the spindle (17) embedded in the bearing, includes a plurality of metal ring-shaped perforating knives (18) whose outer outline has the shape of sharp-pointed teeth (21) fixedly fixed on the metal spindle (17), the knives (18) are separated by many spacer discs (19).