Waterproof Gasket Mold Layout With Wavy Cavities and Rounded Corners
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Solution Overview
Problem
Existing waterproof gasket manufacturing molds with O-shaped or square cavities are inefficient, leading to increased mold size, manufacturing time, and cost due to underutilization of the mold's middle section, necessitating repeated mold production.
Innovation Solution
A waterproof gasket structure and mold design featuring inwardly bent wavy curved sections and turning round corners with a radius of 6 mm or greater, allowing effective use of the mold's middle section to produce multiple gaskets from a single mold, reducing volume and improving efficiency while maintaining product quantity and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a mold with O-shaped or square cavity is used to manufacture waterproof gaskets, then the manufacturing process is simple, but the middle section of the mold is not effectively utilized, requiring increased mold size or repeated mold production
Solution Approach 1:
The mold cavity is segmented into multiple independent gasket production zones arranged in series along the injection flow path. Each zone can form a complete gasket, allowing multiple gaskets to be produced in one injection cycle, thereby improving mold utilization efficiency without complicating the manufacturing process
Solution Approach 2:
The mold cavity transitions from a single centralized cavity to a linear arrangement of multiple cavities along the flow direction. This dimensional reorganization allows effective use of the previously idle middle section of the mold, increasing productivity while maintaining manufacturing simplicity
2Productivity
If the mold size is increased to effectively utilize the middle section, then more gaskets can be produced, but the manufacturing cost and complexity increase
Solution Approach 1:
The mold cavity is divided into multiple sequential zones that can be integrated into a single mold structure. This segmentation allows increased production quantity without requiring separate molds for each gasket, thereby increasing productivity while controlling structural complexity through unified mold design
Solution Approach 2:
Multiple gasket formation zones are merged into a single integrated mold cavity system with unified injection flow path. This combining approach enables production of multiple gaskets in one cycle, increasing productivity while avoiding the complexity of multiple separate mold systems
3Ease of manufacture
If right angle corners are used in the gasket design, then the manufacturing process is simple, but the gasket is prone to cracking and damage during expansion
Solution Approach 1:
The gasket corners are designed with rounded geometry instead of sharp right angles. This curvature eliminates stress concentration points that cause cracking during gasket expansion, thereby improving reliability and service life while maintaining manufacturing simplicity through standard molding capabilities
Data Source
AI summary
A waterproof gasket structure and its gasket shaping mold are provided. The gasket shaping mold includes a mold seat having a surface, and plural mold cavity ring-grooves concavely formed on the surface, each having two corresponding longitudinal groove sections. At least one longitudinal groove section has one or more inwardly bent wavy bent portions, and plural turning round corner portions are formed at the junction between the longitudinal groove section and the wavy bent portion, and each turning round corner portion has a radius equal to or greater than 6 mm. Therefore, the middle of the mold cavity ring-groove can be utilized effectively, and plural waterproof gaskets can be manufactured by the same gasket shaping mold while achieving the effects of reducing the mold volume, improving the manufacturing efficiency, and saving the manufacturing cost.