Air Guide Shaft with Axial Trenches for Mold Venting
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Solution Overview
Problem
In the molding process, air holes in molds lead to air accumulation in products, causing surface protrusions and allowing large particles to escape, affecting product quality and appearance.
Innovation Solution
An air guide shaft with a round cylindrical stem, axial trenches, and a tapered neck is designed to fit into air guide holes, guiding air out while preventing large particles from escaping, ensuring a smooth product surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If air holes are formed in the mold to release air, then air accumulation in the product is reduced, but material accumulates in the air holes causing surface protrusions
Solution Approach 1:
The air guide shaft is segmented into distinct functional zones: a stop section with diameter larger than the air guide hole to block material, a neck section with diameter equal to the air guide hole for tight engagement, and an air guide section with axial trenches for air flow. This segmentation allows each section to perform its specific function, resolving the contradiction between air release and material blocking.
Solution Approach 2:
Different sections of the air guide shaft have different diameters and properties tailored to their specific functions. The stop section has larger diameter to block material, the neck section has matching diameter for engagement, and the air guide section has trenches for air flow. This local differentiation allows the single component to simultaneously achieve material blocking and air release without causing surface defects.
2Object-affected harmful factors
If air holes are used to release air from the mold, then air quality in the product is improved, but large particles escape through the holes affecting appearance
Solution Approach 1:
The air guide shaft divides the air guide hole into two functional zones: the stop section that blocks large particles and the air guide section that allows air flow through axial trenches. This segmentation enables selective passage where air can escape through the trenches while particles are blocked by the stop section, resolving the contradiction between air release and particle containment.
Solution Approach 2:
The air guide shaft acts as an intermediary component inserted into the air guide hole, mediating between the mold cavity and the external environment. It selectively allows air to pass through the axial trenches while blocking particles, thus resolving the contradiction between needing air release and preventing particle escape.
3Ease of manufacture
If simple air holes are provided in the mold, then the structure is simple and easy to manufacture, but air accumulates in the product affecting quality
Solution Approach 1:
The air guide shaft merges multiple functions into a single component: air release through axial trenches, particle blocking through the stop section, and secure engagement through the neck section. This merging allows the mold to maintain simple structure while effectively releasing air and preventing defects, resolving the contradiction between structural simplicity and functional effectiveness.
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 air guide shaft effectively removes air from the mold without allowing large particles to escape, resulting in a flawless product surface and preventing material accumulation in holes, enhancing product quality and aesthetics.
Implementation Method 1
an air guide having a plurality of axial trenches extending from a body of the air guide; one end of the air guide being a taper end; the air guide serving for guiding air to flow out
Implementation Method 2
a stop being a round cylinder for stopping material
Implementation Method 3
a neck connected between the stop and the air guide. The air guide shaft is tightly engaged into an air releasing hole of a mold
Data Source
AI summary
An air guide shaft capable of filling to the air guide holes of a mold for guiding air and prevent large particles from flowing out comprises a stop being a round cylinder for stopping material; an air guide having a plurality of axial trenches extending from a body of the air guide; one end of the air guide being a taper end; the air guide serving for guiding air to flow out; and a neck connected between the stop and the air guide; and The air guide shaft is tightly engaged into an air releasing hole of a mold. Thus, large particles of the material within the mold will not flow out from the hole, while air within the mold will flow out from the hole. The final product molded from the mold has a perfect outer side.