Twice-Opening Mold Integrally Forming Shoe Shell
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Solution Overview
Problem
Traditional shoe making technologies are complex, labor-intensive, and environmentally unfriendly due to the need for manual adjustments and excessive glue usage in assembling shoe uppers, soles, and footbeds, leading to unstable quality and high defective rates.
Innovation Solution
A method for integrally forming shoe soles, footbeds, and a part of the shoe upper using a twice-opening-mold shoe-making mold, which involves heating and shaping rubber within a specific temperature range, reducing material consumption and glue usage, and optimizing the mold structure for precision and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional shoe making technology is used with manual assembly and glue, then shoe components can be assembled, but quality stability is poor and defective rate is high
Solution Approach 1:
The patent merges multiple separate shoe components (shoe upper, shoe sole, foot bed) into a single integrated shoe shell formed by one piece of rubber through mold casting. This eliminates the need for manual assembly and glue application, thereby improving quality stability and reducing defective rates while simplifying the manufacturing process.
Solution Approach 2:
The integrated shoe shell design allows a single component to fulfill multiple functions that previously required separate parts (upper, sole, foot bed). This multi-functional design reduces assembly steps and improves reliability by eliminating joints and glue connections that could fail.
2Productivity
If traditional shoe making with manual work is used, then assembly can be completed, but labor cost is high and quality is unstable
Solution Approach 1:
The patent replaces manual assembly operations with an automated mold casting process. The rubber material is directly cast into the integrated shoe shell form using a mold, eliminating the need for manual cutting, fitting, and gluing operations. This substitution significantly improves labor efficiency and reduces manual operation requirements.
3Object-affected harmful factors
If traditional shoe making with glue is used, then components can be joined, but environmental protection requirements are not met
Solution Approach 1:
By merging all shoe components into a single integrated shoe shell made from one piece of rubber, the invention eliminates the need for glue entirely. This removes the harmful environmental factor of glue usage and disposal while maintaining structural integrity through the continuous material structure without joints.
4Loss of substance
If separate shoe components are assembled traditionally, then manufacturing flexibility is maintained, but material consumption is high
Solution Approach 1:
The patent combines multiple separate components into a single integrated shoe shell, eliminating the need for additional materials such as glue and reducing material waste from cutting and fitting separate pieces. The integrated design reduces overall material consumption while the mold can be adjusted to produce different shoe shell variations.
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 method results in a seamless, durable, and comfortable shoe shell with improved quality stability, reduced labor costs, and enhanced environmental protection, while allowing for easy matching with different shoe uppers and providing good anti-skid and waterproof properties.
Implementation Method 1
heating the twice-opening-mold shoe-making mold heating to required temperatures within 3 hours
Implementation Method 2
a lifting mechanism connected between the bottom mold and the mold main body
Data Source
AI summary
A method for preparing a shoe shell using a twice-opening-mold shoe-making mold comprises steps of preparing rubber for the shoe shell and cutting the rubber for the shoe shell into elongated or square sizes; heating the twice-opening-mold shoe-making mold to required temperatures within 3 hour; and opening the twice-opening-mold shoe-making mold with the bottom mold of the twice-opening-mold shoe-making mold being opened in a direction away from the mold main body of the twice-opening-mold shoe-making mold; putting the rubber for the shoe shell into the twice-opening-mold shoe-making mold; closing the bottom mold towards the mold main body, lifting the mold inner edge of the twice-opening-mold shoe-making mold to be stored into the mold main body until the bottom mold and the mold main body are closed, and performing a heating for 2-8 minutes; separating the bottom mold from the mold main body periodically during heating; reopening the twice-opening-mold shoe-making mold; taking out a semi-finished shoe shell; and trimming the semi-finished shoe shell.