Vulcanization Mold Vent Valve With Replaceable Collet Pin
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Solution Overview
Problem
Current vent valves for vulcanization molds face issues with complex maintenance, frequent damage due to repeated assembly and disassembly, and inefficient air and impurity release, leading to mold defects and reduced manufacturing effectiveness.
Innovation Solution
A vent valve design featuring a sleeve with an inner cylindrical hollow and a movably fitted pin with a flexible collet structure, allowing for easier assembly and disassembly without dissembling the sleeve from the mold, improved air escape, and impurity removal through a central cylindrical part with a smaller diameter, enhancing the valve's elasticity and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If demountable two-piece valves are used to simplify maintenance, then ease of repair is improved, but reliability deteriorates due to frequent damage of the dismantling mechanism
Solution Approach 1:
The vent valve is divided into two separate parts: a sleeve that remains in the mold and a pin that can be removed and replaced. The sleeve contains grooves that allow the pin to be inserted and secured without complex dismantling mechanisms. This segmentation enables easy replacement of the pin while maintaining reliable connection through the groove-based retention system.
2Reliability
If one-piece non-demountable valves are used to improve reliability, then reliability is improved, but ease of repair deteriorates as entire mold must be disassembled for valve replacement
Solution Approach 1:
The vent valve is divided into two separate parts: a sleeve that remains in the mold and a pin that can be removed and replaced. The sleeve contains grooves that allow the pin to be inserted and secured without complex dismantling mechanisms. This segmentation enables easy replacement of the pin while maintaining reliable connection through the groove-based retention system.
3Ease of repair
If dismantling mechanism is included to enable valve demountability, then ease of repair is improved, but device complexity increases and occupies space needed for air and impurity release
Solution Approach 1:
The complex dismantling mechanism is completely removed from the design. Instead, the sleeve is provided with simple grooves that enable the pin to be easily inserted and secured. This extraction of the unnecessary dismantling mechanism simplifies the overall device structure while maintaining ease of repair through the groove-based retention system.
4Strength
If central cylindrical part has larger diameter to strengthen structure, then strength is improved, but air and impurity escape efficiency deteriorates
Solution Approach 1:
The central cylindrical part of the pin has a smaller diameter compared to the lower cylindrical part, creating a localized quality difference. This smaller diameter section provides sufficient structural strength while creating an effective escape path for air and impurities generated during vulcanization. The grooves in the sleeve further enhance this escape pathway.
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 simplifies maintenance, extends valve lifetime, ensures efficient air and impurity removal, and prevents mold defects by allowing for pin replacement without disassembling the sleeve, ensuring accurate stroke length and improved operational reliability.
Implementation Method 1
a spring (3) surrounding the pin (2)
Implementation Method 2
the lower cylindrical part and the central cylindrical part are divided into four flexible legs, forming a flexible collet
Data Source
AI summary
The vent valve (10) for venting bores of vulcanization molds, which includes the sleeve (1), with the inner cylindrical hollow (1.1), ended with the valve conical hole (1.2) and the cylindrical hole (1.4) along the sides, whereas the sleeve (1) may be inserted into the vulcanization mold hole, the pin (2), movably located on the spring (3) in the inner cylindrical hollow (1.1), whereas the pin (2) contains the lower cylindrical part (2.4), ended in its lower part with the lower conical part (2.4.1), and the upper conical part in the upper part (2.4.2), the upper conical part (2.4.2) is followed by the central cylindrical part (2.5), followed by the connecting cylindrical part (2.6), whereas the diameter of the central cylindrical part (2.5) is smaller than the connecting cylindrical part (2.6) as well as the lower cylindrical part (2.4). The lower cylindrical part (2.4) and the central cylindrical part (2.5) are divided into four flexible legs (2.7) to (2.10), forming the flexible collet. Four flexible legs (2.7 to 2.10) are shaped identically and partially reach the connecting cylindrical part (2.6).