Slim-Walled Cup-Shaped Body Geometry for Easier Compression Molding
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Solution Overview
Problem
Existing methods for producing cup-shaped bodies with extremely slim final thickness using compression molding face challenges in managing material flow and require high operating pressures, leading to complex processes and uneven material distribution.
Innovation Solution
A cup-shaped body design with specific ratios of diameter to height and average taper, optimized for compression molding, which allows for easier material flow and reduced molding forces, enabling the production of lightweight bodies with varied tapers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If compression molding is used to produce cup-shaped bodies with extremely slim final thickness, then weight and cost are reduced, but extremely high operating pressures are produced and material flow becomes difficult to manage
Solution Approach 1:
The patent changes the geometric parameters of the cup-shaped body, specifically the ratio between height and diameter (H/D between 0.35 and 1.65) and the average taper angle, to optimize material flow during compression molding. This allows production of slim-walled bodies at reduced pressures by adjusting the shape parameters
2Weight of moving object
If compression molding is used to produce cup-shaped bodies with extremely slim final thickness, then weight and cost are reduced, but the process becomes very complex and material distribution becomes uneven
Solution Approach 1:
By optimizing the H/D ratio and average taper angle, the patent simplifies the compression molding process for producing slim-walled cup-shaped bodies. The geometric optimization ensures uniform material distribution without requiring complex process control or additional equipment
Solution Approach 2:
The patent performs preliminary optimization of the cup-shaped body geometry before the actual molding process. By pre-calculating and setting the optimal H/D ratio and taper angle, the material flow is predetermined to be uniform, eliminating the need for complex real-time process adjustments
3Adaptability or versatility
If cup-shaped bodies with extremely varied degrees of taper are produced using compression molding, then design flexibility is improved, but managing material flow becomes problematic
Solution Approach 1:
The patent identifies an optimal range for the average taper angle that balances design flexibility with manufacturability. By constraining the taper within specific limits while allowing H/D ratio variation, the patent achieves versatile design capability while maintaining easy material flow management during compression molding
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 optimized design facilitates the production of cup-shaped bodies with controlled taper and reduced molding forces, ensuring reliable and cost-effective manufacturing.
Implementation Method 1
the present invention relates to a cup-shaped body made of polymeric material, for the production of containers, and a method for manufacturing cup-shaped bodies. In particular, the present invention relates to a cup-shaped body of the type produced using compression molding
Data Source
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AI summary
A cup-shaped body (1) of the type obtained by compression molding ofa polymeric material, the cup-shaped body (1) having an axis of longitudinal extension (100) and defining a mouth (2) and a longitudinally- extended body (3) which is closed at the opposite end (3a) from the mouth (2); the longitudinally-extended body (3) has a conical or frustum-like extension with a diameter that increases progressively from the opposite end (3a) toward the mouth (2), the cup-shaped body (1) having a height extension (H) measured between the mouth (2) and the opposite end (3a), while the mouth (2) has a circular shape with a diameter (D). The cup-shaped body (1) has the following features: - the ratio between H and D is comprised between 0.35 and 1.65; and - the ratio between D, measured in millimeters, and the average taper (Cmedia), measured in degrees (°), between the taper of the external surface (13a) of the longitudinally-extended body (3) and the taper of the internal surface (13b) of the longitudinally-extended body (3), D/Cmedia, is comprised between 0.5 and 1.