Soft Thin Resin Demolding With Locking Tabs And Support Arms
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Solution Overview
Problem
The existing methods for manufacturing soft and thin resin molded products face difficulties in mechanical and automatic demolding due to the delicate and temperature-sensitive nature of these products, requiring manual operation.
Innovation Solution
A method and device that utilize a concave and convex mold with air ejectors and a molded product removing machine equipped with arms and support arms to lock and support the resin sheet at specific points, allowing for controlled demolding without creasing or deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual demolding operation is used for soft and thin resin molded products, then the delicate product can be handled without damage, but automation and mechanization cannot be achieved
Solution Approach 1:
The patent changes the temperature parameter of the resin molded product from high temperature (soft state) to low temperature (solidified state) before demolding. This parameter change transforms the product from a delicate,难以自动化处理的状态 to a stable state that can be automatically handled by mechanical arms and locking mechanisms without damage
Solution Approach 2:
The patent applies preliminary cooling action to solidify the resin molded product before the demolding process begins. By pre-cooling the product to transform it from a soft, deformable state to a solid, stable state, the system enables subsequent automated locking and handling operations without risking product damage
2Manufacturing precision
If multiple locking points are used to secure the resin sheet during demolding, then the product can be demolded without creasing or deformation, but the device complexity increases
Solution Approach 1:
The patent segments the demolding device into modular functional components: multiple locking tabs distributed at different positions on the mold, corresponding locking arms with individual locking mechanisms, and separate support arms. This segmentation allows each component to perform its specific function independently while working together to achieve precise product shape maintenance during demolding
Solution Approach 2:
The locking arms and support arms are designed with multi-functionality, serving both as positioning elements and as support structures during the demolding process. These components can lock at multiple points simultaneously while also providing structural support to prevent product deformation, reducing the need for additional specialized components
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
Enables the mechanization and automation of demolding processes, ensuring successful removal of soft and thin resin sheet molded products without creasing or poor shaping, enhancing production efficiency.
Implementation Method 1
air ejectors
Data Source
AI summary
The present invention mainly enables achieving the hitherto difficult automation of demolding of a soft and thin resin molded product. The present invention relates to a method and a device for molding a soft and thin resin molded product (12), in which molten resin is injected into a molding space (13) between a concave mold (14) and a convex mold (15) to mold the soft and thin resin molded product (12). The convex mold (15) or the concave mold (14) is opened while the soft and thin resin molded product (12) is left in the concave mold (14) in such a way as to become open in its concave-shaped portion. Then, at least two chuck tabs (17) formed outside the concave-shaped portion of the soft and thin resin molded product (12) left in the concave mold (14) are each held by a chuck (18) of a molded product removing machine (16), and the concave-shaped portion of the soft and thin resin molded product (12) is supported by a support arm (19) of the molded product removing machine (16). The soft and thin resin molded product (12) is demolded from the concave mold (14) by separating the molded product removing machine (16) from the concave mold (14) while maintaining such holding and supporting.