Multisectional Housing for Molding Device Outer Mold
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Solution Overview
Problem
The existing molding devices for forming elongated hollow parts like columns face difficulties in removing the molded columns due to pinching effects caused by the expansion of the outer rubber mold, which can damage the mold and lead to excessive wear, especially when intricate designs are involved.
Innovation Solution
A molding device with a multisectional housing that decouples to allow the outer mold to expand outwardly, reducing pinching pressure and facilitating the extraction of the molded column, featuring L-shaped sections and fasteners for secure assembly and disassembly, and break lines to enable all-sided expansion of the outer mold.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a single-piece housing is used to enclose the outer mold, then the housing provides structural support and containment, but the outer mold cannot expand freely causing pinching of the molded column
Solution Approach 1:
The housing is divided into multiple separable sections (typically three sections for a square mold) that can be independently removed or opened. This segmentation allows the outer mold to expand outwardly in multiple directions without being constrained by a single-piece housing, thereby eliminating the pinching effect on the molded column while maintaining structural support during the molding process.
2Object-generated harmful factors
If the outer mold is allowed to expand freely, then pinching pressure is reduced, but the housing cannot maintain containment during molding
Solution Approach 1:
The housing transitions from a static closed structure during molding to a dynamic open structure during extraction. The separable sections are secured together during the molding process to provide containment and stability, then can be opened or removed to allow the outer mold to expand freely during column extraction, thus reducing pinching pressure.
3Object-generated harmful factors
If a double C-shaped housing is used to relieve pinching, then pinching is reduced on two sides, but pinching remains on the other two sides
Solution Approach 1:
Instead of using a double C-shaped housing that only covers two sides, the invention divides the housing into multiple sections (typically three sections for a square mold) that collectively enclose all four sides. Each section can be independently opened or removed, providing comprehensive relief of pinching pressure on all sides of the outer mold, not just two.
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 solution effectively reduces pinching pressure, allowing for the easy removal of molded columns without damaging the mold, extending the life of the outer mold and simplifying the extraction process, even for columns with intricate designs.
Implementation Method 1
the outer mold remains hot, or at least warm, and tends to expand between the column and the interior of the housing
Data Source
AI summary
A molding device is provided that includes outer and inner rubber molds that define a space therebetween for forming a column. Inserted within the inner mold is an elongated rigid member. A multisectional housing surrounds the outer mold and includes a plurality of sections that in a molding mode are secured together by fasteners. Once the column has been molded between the outer and inner molds, the fasteners are released allowing the sections of the housing to be relaxed or removed from around the outer mold. This permits the outer mold to expand or move slightly outwardly and in response to that outward movement, the pressure or force on the molded column lying between the outer and inner molds is reduced. This facilitates the extraction of the column from between the outer and inner molds.