Cylindrical Folding Route for Disposable Wearable Article Manufacturing
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Solution Overview
Problem
The existing methods for manufacturing disposable wearable articles require a long section for folding absorbent bodies in half, which increases the installation space of the manufacturing device.
Innovation Solution
A method and device that involves conveying absorbent and waist member continuous bodies in different directions, turning the absorbent bodies 90 degrees, joining them to the waist member, and folding them in half along a cylindrical conveyance route using a swinging pad and folding drum to shorten the folding section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If absorbent bodies are folded in half while the wearable article continuous body is being conveyed along a linear route, then the folding process is simple, but the section for folding is long which increases installation space
Solution Approach 1:
The patent applies a cylindrical conveyance route instead of a linear route for conveying the wearable article continuous body during the folding process. This curved path allows the folding section to be compact while maintaining the folding functionality, thereby reducing the installation space requirement without complicating the folding process itself.
Solution Approach 2:
The invention transitions from a one-dimensional linear conveyance route to a two-dimensional cylindrical conveyance route. This dimensional change enables the folding section to be arranged in a compact circular configuration rather than extending linearly, significantly reducing the installation space while keeping the folding mechanism relatively simple.
2Strength
If absorbent bodies are folded in half with gradually increasing angle to avoid excessive force, then no excessive force acts on absorbent bodies, but the folding section becomes long
Solution Approach 1:
The cylindrical conveyance route provides a curved path that naturally accommodates the gradual angle increase during folding. As the wearable article continuous body moves along the cylindrical route, the folding angle increases progressively without requiring a long linear section, thus protecting absorbent body integrity while minimizing space requirements.
Solution Approach 2:
The folding process is made dynamic by utilizing the continuous motion along the cylindrical conveyance route. The gradual angle increase is achieved through the dynamic progression along the curved path, allowing the system to maintain absorbent body integrity without needing a static, lengthy folding section.
3Length of stationary object
If the section for folding absorbent bodies is shortened, then installation space is reduced, but it becomes difficult to fold without excessive force
Solution Approach 1:
The cylindrical conveyance route compactly packs the folding section by utilizing a curved geometry. This curvature allows the folding process to occur over a short distance while maintaining the gradual angle increase necessary to prevent excessive force on absorbent bodies, thus resolving the contradiction between space reduction and force management.
Solution Approach 2:
By moving from linear to cylindrical conveyance, the patent compresses the folding section in the linear dimension while utilizing the circumferential dimension to accommodate the gradual folding process. This dimensional transformation enables short folding section length while preserving absorbent body integrity through controlled gradual folding.
Data Source
AI summary
A method of manufacturing a disposable wearable article includes an absorbent body continuous body in which first sections to be made into absorbent bodies are connected in a first direction being conveyed in the first direction, and a waist member continuous body in which second sections scheduled to become waist members are connected in a second direction being conveyed in the second direction. The absorbent body continuous body is cut to form the absorbent bodies. End sides of the absorbent bodies are joined in a superimposed manner to the waist member continuous body with a spacing provided therebetween such that the other end sides of the absorbent bodies protrude from the waist member continuous body, thereby forming a wearable article continuous body. The absorbent bodies are folded while conveying the wearable article continuous body, followed by cutting the wearable article continuous body between adjacent absorbent bodies.