Valve Bag Thermal Material Reduction Composite Sealing
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Solution Overview
Problem
The existing valve bag designs require a high amount of material for the valve tube, leading to high production costs and ecological concerns due to excessive material usage.
Innovation Solution
The valve tube is made from a thermal material and a different material, where the thermal material is welded or sealed to the different material to close the valve, reducing the amount of thermal material required and using a paper support material with recesses to form the valve tube, allowing for efficient welding or sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the valve tube is made from two layers of thermal material that are welded together, then the valve is stable and can be attached to the filling column, but the amount of material required is large, leading to high production costs and environmental unfriendliness
Solution Approach 1:
The patent applies composite materials by combining thermal material with a paper backing layer to form the valve tube. This composite structure allows the valve to maintain stability and attachment capability while using less thermal material, as the paper backing provides structural support. The thermal material is applied only to the areas requiring sealing and welding, rather than forming the entire valve tube structure.
Solution Approach 2:
The valve tube is segmented into different functional zones: areas with thermal material for welding and sealing, and areas with paper backing for structural support. This segmentation allows each material to be used only where needed, reducing overall thermal material consumption while maintaining valve functionality.
2Reliability
If a paper backing is placed around the thermal material to improve valve hose stability, then the valve can be attached to the filling column, but the material usage increases and production costs rise
Solution Approach 1:
The patent creates a composite valve hose structure where paper backing and thermal material work together. The paper provides structural stability and support, while the thermal material provides sealing and welding capability. This composite approach reduces the need for excessive thermal material, lowering production costs while maintaining attachment stability.
Solution Approach 2:
The patent merges the functions of structural support and sealing into a single integrated valve hose structure. The paper backing and thermal material are combined such that the paper carries the thermal material to the correct positions and provides structural support, while the thermal material provides sealing. This merging eliminates the need for separate components and reduces overall material usage.
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
This design reduces production costs and environmental impact by minimizing the use of thermal material while maintaining a tight seal, making the valve bag more cost-effective and environmentally friendly.
Implementation Method 1
the thermal material is welded or sealed to the alternative material or carrier material
Implementation Method 2
The valve tube is compressed so that opposing inner surfaces of the valve tube come into contact and are welded or sealed
Data Source
Figure 1a
Figure 1b
Figure 2a
AI summary
The invention relates to a valve bag for bulk goods such as cement, gypsum, granular material, animal feed, or the like, comprising a standing bottom, preferably a cross bottom or block bottom, and comprising a valve bottom lying opposite the standing bottom, into which valve bottom a valve tube is incorporated, which forms a valve for filling the valve bag in the region of a first corner tuck of the bottom fold, characterized in that the valve tube is formed of a thermal material and a material deviating therefrom, wherein the two materials can be welded or sealed to each other in order to close the valve.