Oscillating Roller Folding Mechanism for High-Speed Product Alignment
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Solution Overview
Problem
Existing blade folding technologies for products at high speeds suffer from precision and repeatability issues, leading to deformation and damage due to the timing of blade strikes and traction of in-running belts, resulting in poor alignment and folding quality.
Innovation Solution
A folding apparatus comprising an oscillating member and a folding roll with vacuum-assisted mechanisms that control and rotate products to achieve precise folding at high speeds, ensuring repeatable alignment and minimizing force-induced damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If blade folding is used to fold products at high speeds, then productivity is improved, but manufacturing precision deteriorates due to timing dependence and traction issues
Solution Approach 1:
The patent replaces the blade striking mechanism with a roller-based folding system. Instead of using a blade to strike and fold the product, a folding roller gradually engages and folds the product through continuous contact, eliminating the timing-critical blade strike while maintaining high-speed operation capability.
Solution Approach 2:
The patent introduces a folding roller as an intermediary between the product and the folding action. The roller acts as a mediating element that gradually applies folding force through its surface contact, replacing the direct blade-to-product impact and providing continuous positioning control throughout the folding process.
2Productivity
If blade folding is used to achieve high-speed folding, then productivity is improved, but reliability deteriorates due to cudgeling effect causing product deformation and damage
Solution Approach 1:
The patent substitutes the high-impact blade striking mechanism with a gentle roller-based system. The folding roller applies distributed pressure through its curved surface, gradually folding the product without the concentrated impact force that causes cudgeling effect, deformation, and damage at high speeds.
Solution Approach 2:
The folding roller design inherently provides cushioning by distributing the folding force over a larger contact area and time period. The curved surface of the roller gradually engages the product, cushioning the folding action against sudden impacts that would cause damage, while maintaining sufficient speed for high-productivity operation.
3Device complexity
If blade folding is used for folding products, then device complexity is reduced, but manufacturing precision deteriorates because the product is not held in place during the folding process
Solution Approach 1:
The folding roller serves as an intermediary that provides continuous contact and positioning control during the folding process. As the roller rotates and engages the product, it maintains the product in a fixed position relative to the folding axis, ensuring precise fold alignment while the simple roller mechanism keeps device complexity low.
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 enables precise and repeatable folding of products at high speeds (400-4000 products per minute) with reduced force and deformation, maintaining accurate control and improving product quality.
Implementation Method 1
a vacuum source in fluid communication with the interior chamber for holding the leading portion of the product to the oscillating member
Data Source
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AI summary
An apparatus for folding products has a conveying member configured to hold a first portion and a second portion of the product and to release the first portion while continuing to hold the second portion. The conveying member is configured to convey the product at a conveying speed. A folding assembly is disposed adjacent the conveying member. The folding assembly is configured to receive the first portion of the product from the conveying member while moving generally at the conveying speed, to decelerate relative to the conveying member while holding the first portion thereto thereby causing the product to fold about the fold axis, and to place the first portion of the product into contact with the second portion such that the first portion overlies the second portion.