Segmented Paper Tube for High-Speed Unrolling
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Solution Overview
Problem
Existing paper tubes make it difficult to unroll materials like thread, cord, or fabric at high speeds, and connecting successive articles is inefficient, leading to a degraded rate of production.
Innovation Solution
A paper tube with helically formed perforations along its length, allowing for easy removal without deforming the wound material, and an additional sheet of film or paper wrapped around the outer surface to prevent internal damage, enabling faster unrolling and connection of successive articles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If material is unwound by rotating the paper tube, then the material can be unrolled, but the unrolling speed is limited and cannot be high
Solution Approach 1:
The paper tube is segmented into multiple layers with different properties: an inner layer that remains with the material and an outer layer that is easily removable. This segmentation allows the outer layer to be stripped off quickly without rotating the tube, enabling high-speed unrolling while the inner layer maintains the structural integrity needed for controlled material release.
Solution Approach 2:
The invention extracts the function of high-speed material release from the paper tube rotation mechanism. By making the outer layer easily removable through perpendicular scoring lines, the material can be exposed and unrolled at high speed by simply removing the outer layer rather than rotating the entire tube structure.
2Productivity
If one article of wound material is completely used, then another article needs to be connected, but this separate usage degrades the rate of successive production
Solution Approach 1:
The paper tube structure enables continuous production by allowing seamless transition between articles. The inner layer remains with the material to maintain the roll structure, while the easily removable outer layer can be quickly stripped and replaced with the next article's outer layer, eliminating downtime between articles and maintaining continuous productive action.
Solution Approach 2:
The invention applies discarding and recovering by selectively removing the outer layer of the paper tube after its protective function is fulfilled. The inner layer is recovered and remains with the material to maintain structural integrity during use and facilitate smooth transition to the next article, maximizing resource utilization and minimizing waste.
3Speed
If the paper tube is removed to release material from inside, then unrolling speed improves, but the paper tube must be effectively removed without deforming the roll
Solution Approach 1:
The paper tube is divided into an inner layer and an outer layer with distinct functions. The outer layer is scored perpendicular to the winding direction, allowing it to be removed without affecting the inner layer that maintains the material roll's structural integrity. This segmentation enables rapid removal of the outer layer while preserving the precise winding state of the material.
Solution Approach 2:
Different parts of the paper tube structure have different properties: the outer layer has reduced strength and localized scoring for easy removal, while the inner layer maintains full structural integrity to preserve the winding state. This local differentiation of properties allows the outer layer to be quickly discarded while the inner layer continues to protect and maintain the material roll's precise configuration.
Data Source
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AI summary
The present invention relates to an easily removable paper tube used for winding material, such as fabric, a band, a film, and so forth, and a method for successively using articles, each of which uses the paper tube, and, more specifically, to an easily removable paper tube and a method for successively using articles that use the paper tube, in which the paper tube is effectively removed, without deforming a roll of material wound around the paper tube, such use of the material enabled by releasing it from the inside of the roll with the paper tube removed, thereby increasing the unrolling speed of the material, and a first article and a second article, each of which includes wound material, are connected to each other for use, thereby allowing successive provision of the articles, and thus remarkably increasing a rate of successive production.