CN217022094U

CN217022094U - Side wall structure with sandwich type apex

Info

Publication number: CN217022094U
Application number: CN202123443958.2U
Authority: CN
Inventors: 于学勇; 李忠柱; 王二伟; 金文浩; 宋静涛
Original assignee: Qingdao Worui Tyre Co ltd
Current assignee: Qingdao Worui Tyre Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-07-22
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a side wall structure with a sandwich type apex, which relates to the technical field of tires and is used for solving the problem of uneven vulcanization of the apex in the vulcanization process, and the side wall structure with the sandwich type apex comprises an inner liner, a cord fabric layer, side wall rubber, a sandwich type composite apex and a tire bead, wherein the tire bead and the sandwich type composite apex are coated in the cord fabric layer, the inner liner is bonded with the cord fabric layer, the side wall rubber is bonded with the inner liner and the cord fabric layer, and the sandwich type composite apex comprises outer apex and inner apex, so that the utility model uses two apexes consisting of rubbers with different vulcanization speeds, wherein the outer portion uses a formula with a slower vulcanization speed, the inner portion uses a formula with a faster vulcanization speed, the effect of simultaneous vulcanization inside and outside can be ensured during vulcanization, and the problem of uneven vulcanization of the apex is solved, has the effects of improving the vulcanization speed and reducing the energy consumption.

Description

Side wall structure with sandwich type apex

Technical Field

The utility model relates to the technical field of tires, in particular to a tire side structure with sandwich type apex.

Background

In recent years, energy transformation, green and low-carbon development has become an unblocked global trend. As the nationwide carbon market is opened, the requirements of the tire industry chain for reducing carbon emissions are also more stringent as a major consumer of carbon emissions. The vulcanization process of the tire needs to use a large amount of water vapor, so that the reduction of the vulcanization time is greatly helpful for energy conservation and carbon emission reduction. For passenger car tires, the undervulcanization phenomenon usually occurs at the shoulder portions or apexes of the tires, and the vulcanization efficiency of the undervulcanization phenomenon directly affects the vulcanization efficiency of the tires as an apex core which is far away from the vulcanization heat source of the tires. The traditional triangular rubber core adopts rubber, and the vulcanizing speed inside the rubber core is lower than that outside the rubber core inevitably. Therefore, the apex often has the phenomenon of uneven vulcanization in the vulcanization process, namely the outer apex is vulcanized, but the inner apex is not vulcanized yet, and when the inner apex is vulcanized, the outer apex is over-vulcanized, so that the whole vulcanization effect is affected.

Therefore, the utility model is invented by correcting and improving the defects of the scheme in actual manufacturing and implementation and use, simultaneously with the spirit and concept of obtaining, the assistance of professional knowledge and experience, and after various ingenuity and experiments, and particularly provides a tire side structure with the sandwich type apex, which is used for solving the problem of uneven vulcanization of the apex in the vulcanization process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a tire side structure with sandwich type apex, which is used for solving the problem of uneven vulcanization of the apex in the vulcanization process in the prior art.

The technical scheme of the utility model is realized as follows: the utility model provides a side wall structure with sandwich type apex, includes inner liner, casing ply, side wall rubber, the compound apex of sandwich type, tire bead, the compound apex of tire bead and sandwich type cladding in the casing ply is in situ, the inner liner with the casing ply bonds mutually, side wall rubber with inner liner, casing ply bond mutually, the compound apex of sandwich type includes outer apex and interior apex.

In a preferred embodiment, the inner liner is disposed inside the carcass layer, the inner side of the carcass layer is covered in the inner liner, and the outer side of the carcass layer is covered in the sidewall rubber.

In a preferred embodiment, the bead is disposed below the sandwich apex.

In a preferred embodiment, the sidewall rubber is disposed outside the carcass layer, the sidewall rubber is bonded to the outside of the carcass layer, and the sidewall rubber is bonded to the bottom of the inside of the inner liner.

In a preferred embodiment, the inner apex is less resistant to vulcanization than the outer apex, and the inner apex is wedged into the outer apex.

In a preferred embodiment, the inner apex is completely enclosed within the outer apex, and the bottom of the outer apex is connected to the bead.

In a preferred embodiment, the upper end of the inner apex is covered in the outer apex, and the bottoms of the inner apex and the outer apex are both connected with the sidewall rubber.

The tire is different from the traditional tire using one type of rubber apex, the apex rubber core is formed by compounding two types of rubber, and the composite structure is different from the traditional lap joint type composite structure and is a sandwich type (wedge type) structure.

The beneficial effects of the utility model are:

the sandwich (wedged) type triangular rubber is designed by using the triangular rubber consisting of two types of rubber with different vulcanization speeds, wherein the outer part uses a formula with a slower vulcanization speed, and the inner part uses a formula with a faster vulcanization speed.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure, 1-ply; 2-an inner liner layer; 3-sandwich type composite triangular glue; 31-inner apex; 32-outer apex; 4-sidewall rubber; 5-tire bead.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

It should be noted that all directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature.

In the description of the embodiments, the terms "disposed," "connected," and the like are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or through an intervening medium, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Embodiment 1, as shown in fig. 1, a sidewall structure with a sandwich type apex comprises an inner liner 2, a carcass layer 1, sidewall rubber 4, a sandwich type composite apex 3, and a bead 5, wherein the bead 5 and the sandwich type composite apex 3 are coated in the carcass layer 1, the inner liner 2 is bonded with the carcass layer 1, the sidewall rubber 4 is bonded with the inner liner 2 and the carcass layer 1, and the sandwich type composite apex 3 comprises an outer apex 32 and an inner apex 31.

The inner liner layer 2 is arranged on the inner side of the cord fabric layer 1, the inner side of the cord fabric layer 1 is coated in the inner liner layer 2, and the outer side of the cord fabric layer 1 is coated in the sidewall rubber 4.

The tire bead 5 is arranged at the lower side of the sandwich type composite apex 3.

The sidewall rubber 4 is arranged outside the cord fabric layer 1, the sidewall rubber 4 is adhered to the outside of the cord fabric layer 1, and the sidewall rubber 4 is adhered to the bottom of the inside of the inner liner 2.

The vulcanization resistance of the inner apex 31 is weaker than that of the outer apex 32, and the inner apex 31 is wedged into the outer apex 32.

The inner apex 31 is completely covered inside the outer apex 32, and the bottom of the outer apex 32 is connected with the bead 5, wherein the connection is direct contact and is not adhesion.

During vulcanization, the outer triangular rubber 32 is vulcanized firstly, the vulcanization time is long, and the vulcanization time of the inner triangular rubber 31 is short, but the vulcanization is easier than that of the outer triangular rubber 32, so that the inner triangular rubber 31 and the outer triangular rubber 32 can be synchronously vulcanized, and the core type composite triangular rubber 3 can be quickly and uniformly vulcanized.

Example 2 is different from example 1 in that the upper end of the inner apex 31 is covered in the outer apex 32, and the bottoms of the inner apex 31 and the outer apex 32 are in contact with the sidewall rubber 4, and the contact is direct contact and is not adhesion, as shown in fig. 2.

According to the actual heat transfer condition of the tire, a half-bag or full-bag structure is selected, and the final effect is that the outer triangle preferentially obtains heat energy.

The beneficial effects of the utility model are:

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art; when combinations of technical solutions are mutually inconsistent or cannot be realized, such combinations should not be considered to exist and are not within the scope of the claimed invention.

Claims

1. The utility model provides a side wall structure with sandwich type apex, its characterized in that, includes inner liner, casing ply, side wall rubber, the compound apex of sandwich type, tire bead, the compound apex of tire bead and sandwich type cladding in the casing ply is in situ, the inner liner with the casing ply bonds mutually, side wall rubber with inner liner, casing ply bond mutually, the compound apex of sandwich type includes outer apex and interior apex.

2. The sidewall structure with the sandwich apex of claim 1, wherein the inner liner is disposed inside the ply layer, the inner side of the ply layer is wrapped in the inner liner, and the outer side of the ply layer is wrapped in the sidewall rubber.

3. The sidewall structure of claim 1, wherein the bead is disposed on an underside of the sandwich apex.

4. The tire side structure with sandwich type apex of claim 1, wherein the tire side rubber is arranged outside the cord fabric layer, the tire side rubber is bonded with the outside of the cord fabric layer, and the tire side rubber is bonded with the bottom of the inside of the inner liner layer.

5. The sidewall structure of claim 1, wherein the inner apex is less resistant to vulcanization than the outer apex, and the inner apex is wedged into the outer apex.

6. The sidewall structure of claim 5, wherein the inner apex is completely enclosed within the outer apex, and a bottom portion of the outer apex is connected to the bead.

7. The sidewall structure of claim 5, wherein the upper end of the inner bead apex is covered by the outer bead apex, and the bottoms of the inner bead apex and the outer bead apex are connected to the sidewall rubber.