Universal Apparatus for Elasticized Composite Side Panels
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Solution Overview
Problem
Traditional production systems require separate devices for producing elasticized and non-elasticized side panels for absorbent sanitary articles, leading to increased complexity and cost, making it challenging to achieve a balance between quality and price for average-priced products.
Innovation Solution
A method and apparatus that use a single device to produce elasticized and non-elasticized side panels by forming controlled activation zones in a sheet, attaching elastic elements, and making transverse cuts to create composite panels, allowing for the simultaneous production of both types without generating scraps, thus reducing material usage and improving edge regularity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate devices are used to produce elasticized and non-elasticized side panels, then production quality and material precision are improved, but device complexity and production cost increase
Solution Approach 1:
The apparatus is designed as a universal device capable of producing both elasticized and non-elasticized side panels using the same basic structure. The single apparatus incorporates a feeding mechanism, cutting mechanism, and elastic element attachment unit that can operate in different modes to produce both panel types, eliminating the need for separate dedicated devices for each panel type.
Solution Approach 2:
The apparatus incorporates dynamic control mechanisms that allow it to adapt its operation based on the required panel type. The system can dynamically adjust parameters such as elastic element attachment, cutting patterns, and feeding rates to produce either elasticized or non-elasticized panels as needed, providing flexibility without requiring multiple static devices.
2Reliability
If elasticized panels are produced using traditional methods, then comfort and effectiveness are improved, but material cost and production complexity increase
Solution Approach 1:
The apparatus applies elastic elements only to specific local zones of the side panel where elasticity is needed for comfort and effectiveness, rather than making the entire panel elasticized. This selective attachment approach maintains the required comfort and effectiveness while reducing overall material consumption and production costs.
Solution Approach 2:
The invention uses composite material structures combining non-elastic base materials with elastic elements attached at specific zones. This composite approach allows the panel to have elastic properties where needed while using more cost-effective non-elastic materials for the majority of the structure, balancing quality and cost.
3Quantity of substance
If non-elasticized panels are used for average-priced sanitary articles, then production cost is reduced, but quality and comfort may be compromised
Solution Approach 1:
The apparatus enables selective elastic element attachment at specific local zones rather than requiring the entire panel to be elasticized. This allows non-elasticized panels to be produced at lower cost while still providing elasticized functionality where needed, maintaining quality and comfort standards without the full cost premium of completely elasticized panels.
4Adaptability or versatility
If traditional production methods are used, then specialized panel types can be produced, but material waste and scrap generation increase
Solution Approach 1:
The universal apparatus design allows the same device to produce both elasticized and non-elasticized panels without requiring separate specialized production lines. This versatility reduces material waste by eliminating the need for separate device setups and reduces the generation of scraps from failed production runs, while still maintaining the ability to produce specialized panel types when needed.
Data Source
AI summary
A method for producing elasticized composite side panels and non-elasticized side panels, comprising: feeding a continuous web of a first non-extensible material having longitudinal side edges along a first direction parallel to a longitudinal axis of said web, forming in said web, in a position within said longitudinal edges, and at a pitch, a plurality of oblong openings having a major axis substantially parallel to the longitudinal axis of said web, each opening having a maximum transverse dimension with a first length, a maximum longitudinal dimension with a second length, and two longitudinal end zones, forming a plurality of rectangular elements of elastic material having in a relaxed condition two minor sides with a first dimension greater than said first length and two major sides with a second dimension at least equal to said second length of said oblong openings, said elements of elastic material being elastically extensible at least along the first dimension, transferring each of said rectangular elements of elastic material in a relaxed condition onto said continuous web at each oblong opening and in a substantially centered position with respect thereto, welding each rectangular element to said continuous web along at least the respective longitudinal edges superimposed on the longitudinal edges of each oblong opening, so as to form a continuous composite web, making transverse cuts at predetermined intervals on said continuous composite web so as to remove transverse portions from said continuous composite web comprising the longitudinal end zones of each oblong opening and the corresponding minor sides of each respective rectangular element of elastic material, to form alternately individual elasticized composite panels comprising said elastic material and individual non-elasticized panels not comprising said elastic material.