CN210970553U

CN210970553U - Explosion-proof tire and preparation mould thereof

Info

Publication number: CN210970553U
Application number: CN201921452501.8U
Authority: CN
Inventors: 计文华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-03
Filing date: 2019-09-03
Publication date: 2020-07-10
Anticipated expiration: 2029-09-03

Abstract

The utility model relates to an explosion-proof tire and preparation mould thereof, include: outer matrix body and hollow inlayer cavity be equipped with the supporting framework along the annular direction in the inlayer cavity, just the supporting framework with the inlayer cavity is the integrated into one piece structure, the supporting framework is cylindricality, rhombus or S-shaped, outer matrix body and supporting framework are the butyl rubber material. The utility model discloses the support skeleton is wrapped to the explosion-proof tire, and outer matrix can block spot, and has improved matrix's wearability and intensity, and the support skeleton of embeds simultaneously has alleviateed holistic weight effectively, and has increased elasticity; furthermore, the utility model discloses the tire can be inflated through the gas pocket, also can not inflate, has reduced the emergence of incident, and performance is high.

Description

Explosion-proof tire and preparation mould thereof

Technical Field

The utility model belongs to the technical field of rubber, concretely relates to run-flat tire and preparation mould thereof.

Background

At present, tires are mainly prepared by vulcanizing high polymer materials such as polyurethane, rubber and the like, and the traditional tires without inflation mainly comprise the following components: in a common solid tire, a hollow tire with a built-in cavity or a framework is arranged on both sides of the tire in a penetrating manner, i.e., the framework is arranged outside the tire to form a cavity, as shown in fig. 1. The above-mentioned tires have the following drawbacks: the solid tire is heavy, the comfort level is low, the built-in hollow tire needs to be inflated, the phenomenon of air leakage or explosion is easy to occur, the maintenance cost and time are consumed, safety accidents are easy to occur, the hollow tire is provided, the stress is uneven, the balance is poor, the hollow tire is easy to damage under pressure for a long time, and meanwhile, due to the fact that the tire runs on the road surface for a long time, stains are easy to enter the hollow tire and are difficult to clean.

SUMMERY OF THE UTILITY MODEL

The utility model provides an explosion-proof tire and a preparation mold thereof, aiming at the defects of the prior art, the utility model discloses an explosion-proof tire internally wraps a support framework, an outer tire body can block stains, and the wear resistance and the strength of the tire body are improved, and meanwhile, the built-in support framework effectively lightens the whole weight and increases the elasticity; furthermore, the utility model discloses the tire can be inflated through the gas pocket, also can not inflate, has reduced the emergence of incident, and performance is high.

For solving one of above-mentioned technical problem at least, the utility model discloses the technical scheme who takes is:

a run flat tire comprising: outer matrix body and hollow inlayer cavity be equipped with the supporting framework along the annular direction in the inlayer cavity, just the supporting framework with the inlayer cavity is the integrated into one piece structure, the supporting framework is cylindricality, rhombus or S-shaped, outer matrix body and supporting framework are the butyl rubber material.

Furthermore, the inner cavity is provided with air holes for inflating.

In another aspect of the present invention, a mold for manufacturing a run flat tire is provided, the mold comprising: from last mould, well mould and the lower mould that down the cooperation set up, wherein, the terminal surface of going up the mould is equipped with the die cavity, the terminal surface of lower mould be equipped with go up the lower mould chamber that the die cavity is relative, the upper and lower surface of well mould is equipped with upper groove and low groove respectively, go up the die cavity cooperation go up the recess and form the semi-manufactured goods of tire that has first semi-support skeleton, the cooperation of lower mould chamber the low groove forms the semi-manufactured goods of tire that has first semi-support skeleton.

Furthermore, the shape of the upper groove and the lower groove after combination is the same as that of the support framework.

The beneficial effects of the utility model include at least: the utility model discloses the support skeleton is wrapped to the explosion-proof tire, and outer matrix can block spot to improve matrix's wearability and intensity, and the support skeleton of embeds simultaneously has alleviateed holistic weight effectively, and has increased elasticity, has reduced the possibility of explosion simultaneously; and the utility model discloses wholly adopt the butyl rubber material, guaranteed the gas tightness of tire, reduced the possibility of gas leakage, in addition, the utility model discloses the tire can be inflated through the gas pocket, also can not inflate, has reduced the emergence of incident, and performance is high.

Drawings

Fig. 1 is a schematic view of a prior art tire.

Fig. 2 is a schematic structural diagram of the tire of the present invention.

Fig. 3 is the overall assembly schematic diagram of the die of the present invention.

The hollow tire comprises a cavity 1, an outer tire body 2, an inner cavity 3, a supporting framework 4, an upper mold 5, an upper mold cavity 501, a middle mold 6, an upper groove 601, a lower groove 602, a lower mold 7 and a lower mold cavity 701.

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the following specific embodiments. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications.

Example 1: the utility model discloses this example has described a run-flat tire, and fig. 2 is the utility model discloses the structural schematic diagram of tire, it is shown with reference to fig. 2, and it mainly includes: outer matrix body and hollow inlayer cavity be equipped with the supporting framework along the annular direction in the inlayer cavity, just the supporting framework with the inlayer cavity is the integrated into one piece structure, the supporting framework is cylindricality, rhombus or S-shaped, outer matrix body and supporting framework are the butyl rubber material. The run flat tire may not be inflated. It will be appreciated that fig. 2 only shows a cylindrical support skeleton.

Example 2: unlike in embodiment 1, the inner cavity is provided with air holes through which air can be pumped.

Example 3: the embodiment of the utility model discloses a run-flat tire's preparation mould, fig. 3 is the utility model discloses the holistic assembly schematic diagram of mould, it is shown with reference to fig. 3, the preparation mould mainly includes: from last mould, well mould and the lower mould that down the cooperation set up, wherein, the terminal surface of going up the mould is equipped with the die cavity, the terminal surface of lower mould be equipped with go up the lower mould chamber that the die cavity is relative, the upper and lower surface of well mould is equipped with upper groove and low groove respectively, go up the die cavity cooperation go up the recess and form the semi-manufactured goods of tire that has first semi-support skeleton, the cooperation of lower mould chamber the low groove forms the semi-manufactured goods of tire that has first semi-support skeleton. It can be understood that, the utility model discloses the shape behind upper groove and the fit of low groove is the same with the shape of support skeleton. It will be appreciated that fig. 3 only shows the preparation mold for the cylindrical support skeleton.

Example 4: the embodiment of the utility model provides a method for preparing run-flat tire of preparation mould described, including following step:

the method comprises the following steps: placing the rubber particles into a plasticizing device to be plasticized into fluid rubber materials;

step two: sequentially closing the upper die, the middle die and the lower die to respectively form an upper die cavity and a lower die cavity, and keeping the temperature at 130-180 ℃ in the process of closing the dies; vacuumizing the upper die cavity and the lower die cavity after die assembly to be in a negative pressure state;

step three: injecting the plasticized fluid rubber material into the upper mold cavity and the lower mold cavity, and standing and molding the rubber material to obtain a semi-finished tire product with an upper semi-supporting framework and a semi-finished tire product with a lower semi-supporting framework;

step four: opening the mold, taking out the middle mold, and closing the upper mold cavity in which the tire semi-finished product with the upper semi-support framework is arranged and the lower mold cavity in which the tire semi-finished product with the lower semi-support framework is arranged respectively;

step five: filling air at normal temperature and normal pressure into the synthesized semi-finished product of the tire and vulcanizing the semi-finished product of the tire;

step six: and opening the mold cavity and taking out the explosion-proof tire.

To sum up, the utility model discloses the support skeleton is wrapped to the explosion-proof tire, and outer matrix can block spot, and has improved matrix's wearability and intensity, and the support skeleton of embeds simultaneously has alleviateed whole weight effectively, and has increased elasticity, has reduced the possibility of explosion simultaneously; and the utility model discloses wholly adopt the butyl rubber material, guaranteed the gas tightness of tire, reduced the possibility of gas leakage, in addition, the utility model discloses the tire can be inflated through the gas pocket, also can not inflate, has reduced the emergence of incident, and performance is high.

Claims

1. A run-flat tire, comprising: outer matrix body and hollow inlayer cavity be equipped with the supporting framework along the annular direction in the inlayer cavity, just the supporting framework with the inlayer cavity is the integrated into one piece structure, the supporting framework is cylindricality, rhombus or S-shaped, outer matrix body and supporting framework are the butyl rubber material.

2. A run-flat tire according to claim 1, wherein said inner cavity is provided with air holes for inflation.

3. A run flat tire producing mold according to claim 1, wherein said producing mold comprises: from last mould, well mould and the lower mould that down the cooperation set up, wherein, the terminal surface of going up the mould is equipped with the die cavity, the terminal surface of lower mould be equipped with go up the lower mould chamber that the die cavity is relative, the upper and lower surface of well mould is equipped with upper groove and low groove respectively, go up the die cavity cooperation go up the recess and form the semi-manufactured goods of tire that has first semi-support skeleton, the cooperation of lower mould chamber the low groove forms the semi-manufactured goods of tire that has first semi-support skeleton.

4. The production mold according to claim 3, wherein the upper groove and the lower groove have a shape that is the same as the shape of the support frame.