Vulcanized mold with enhanced seal

一种模具、模制的技术，应用在家里用具、其他家里用具、胎等方向，能够解决模具制造复杂、制造模具昂贵等问题，达到避免模制溢料、解决方案简单、节省时间的效果

Active Publication Date: 2021-01-01
SOCIETE DE TECH MICHELIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the ring segments have to be manufactured individually, assembled and then fastened to each sector, thereby complicating the manufacture of the moulds.
In addition, this solution requires a large number of additional parts, including ring sections and fastening parts, thus making the mold expensive to manufacture

Method used

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  • Vulcanized mold with enhanced seal
  • Vulcanized mold with enhanced seal
  • Vulcanized mold with enhanced seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] Figure 1a A partial view of a section in a meridian plane through a sector mold 1 for tires known from the prior art is shown. The mold 1 comprises a set of sectors 2 forming a ring of sectors, and two shells 3 , one being a lower shell and the other being an upper shell. Each sector 2 in the ring constituted by the sectors comprises a radially inner face 2' with a molded lining 2". The mold 1 also has a band 4 for holding the sector when the mold 1 is closed. Zone 2 stays together.

[0032] Figure 1b yes Figure 1a A section on the axis AA' shown in , which shows the first closed configuration of the mold 1, in which the closure first takes place by contact between the adjacent sectors 2, and in the ring formed by the sectors 2 and the housing 3, more specifically there is a clearance J at the interlocking circle.

[0033] Figure 1c the same is Figure 1a Section on the axis AA' shown in , which shows the second closed configuration of the mold 1, in which the c...

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PUM

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Abstract

A mould (10) for a tire, comprising two shells (30) that are each intended to mould a lateral sidewall of the tire, a ring of sectors (20) intended to mould a tread of the tire, each sector (20) of the ring of sectors comprising a radially inner face (21) having a moulding lining (22). The mould (10) has microstructures (50) that are designed to fill a clearance between two moulding linings (22) of adjacent sectors (20) and / or between a moulding lining (22) of one sector (20) and a shell (30), when the mould is closed.

Description

technical field [0001] The invention relates to the field of molds for tyres, in particular of the sectored type. Background technique [0002] A sector mold generally has two lateral shells for molding the sidewalls of the tire, and several peripheral sectors arranged between the shells for molding the tread of the tire. The tread is more precisely molded from the liner that includes the tire pattern. These molded liners are attached and fastened to the inner face of each sector or integrally formed. [0003] During vulcanization, with the green green body of the future tire being firmly pressed and held against the mould, said green body is subjected to certain pressure and temperature conditions which cause the raw rubber compound to become fluid. Therefore, a very good sealing of the mold is necessary to avoid flash on the tire during curing. [0004] However, in practice, the vulcanization mold is difficult to achieve closure on sector molds known from the prior art ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29D30/06B29C43/38B29C33/00
CPCB29C33/0038B29C43/38B29D30/0629B29D2030/0616
Inventor E·布朗切特T·莱斯屈尔
Owner SOCIETE DE TECH MICHELIN
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