Tire Vulcanization Mold Vent Gap and Replacement Piece Segmentation
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Solution Overview
Problem
The existing tire vulcanization molds face challenges in accurately forming vent gaps to prevent rubber from sticking out, which impairs workability during disassembly and reassembly, especially when trying to fit replacement pieces without gaps for information display.
Innovation Solution
The tire vulcanization mold design includes an annular side mold with recesses and side pieces forming vent gaps, where the replacement piece is closely fitted into the side mold body without spanning the side piece and side mold body, allowing for separate fitting of side pieces with gaps and close contact of replacement pieces, reducing the required accuracy and improving workability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the replacement piece spans both the side piece and side mold body, then it can be securely fixed, but it becomes difficult to disassemble and reassemble the mold
Solution Approach 1:
The replacement piece is divided into multiple independent replacement pieces, each fitted into separate mounting holes on the side mold body. This segmentation allows each piece to be independently installed and removed, improving disassembly and reassembly workability while maintaining secure fixing through individual mounting holes
2Manufacturing precision
If the vent gap is formed with high precision to prevent rubber sticking out, then molding quality improves, but the complexity of assembling side pieces increases
Solution Approach 1:
The side mold is divided into a side mold body and separate side pieces that can be independently assembled. The vent gaps are formed at the interfaces between these segmented components, allowing the precision venting function to be achieved through modular assembly rather than complex monolithic structures
Solution Approach 2:
The side pieces act as intermediary components between the side mold body and the tire sidewall. These intermediaries form the vent gaps at their interfaces, providing a simple mechanism to achieve precise air discharge while maintaining ease of assembly through standardized mounting holes
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
This design enhances workability by allowing easier disassembly and reassembly, reducing the risk of molding defects due to accurate venting and precise fitting of replacement pieces, while maintaining effective air discharge and suppressing rubber intrusion.
Implementation Method 1
it is required to discharge the air accumulated between the mold and the green tire in order to suppress the molding defects
Data Source
AI summary
A tire vulcanization mold 10 of an embodiment includes a side mold 14 having a side molding surface 20 for molding a side wall portion. The side mold 14 includes: a side mold body 24 having recesses 30 provided in the side molding surface 20; a side piece 26 fitted into the recess 30 to form a vent gap 28 with a wall surface of the recess; and a replacement piece 44 for displaying information closely fitted into a mounting hole 42 provided in the side molding surface 20 without a gap therebetween. The replacement piece 44 is provided in the side piece 26 or in the side mold body 24 so as not to span the side piece 26 and the side mold body 24.