CN116968476A - Lining composite part for improving tire bead exposure and tire - Google Patents

Abstract

The application relates to the technical field of tire production, and in particular discloses a lining composite part for improving tire bead exposure and a tire, wherein the lining composite part comprises: the tire comprises an airtight layer, a transition layer and a film piece, wherein the airtight layer is attached to the transition layer, the film piece is fixed on the attaching face of the transition layer, the attaching face of the transition layer is used for attaching to the inside of the tire, and the film piece is arranged between the transition layer and the inner wall of the tire. The tire carcass ply-yarn structure can effectively solve the problems that in the tire manufacturing process, the interval between carcass cords is increased, the cord rubber is insufficient, the inner liner butyl rubber is permeated, and when the existing equipment is free from space transformation or insufficient in funds, the problem of tire carcass ply-yarn exposure caused by fluctuation of the size and the quality of half parts, excessively low Mooney viscosity of a transition layer, excessively large assumed stretching value of the carcass cords and the like is effectively prevented.

Description

Lining composite part for improving tire bead exposure and tire

Technical Field

The application relates to the technical field of tire production, in particular to an inner lining composite part for improving the exposed line of a tire inner liner and a tire with the same.

Background

The radial tyre carcass has the cord arrangement different from that of the bias tyre, the cords of the radial tyre are not arranged in a mutually crossed way, but are nearly parallel to the section of the outer tyre, like the earth radial arrangement, the cord angle is small, generally 0 DEG, no maintenance intersection point exists between the carcass cords, and when the tyre runs, the stress around the crown part is increased, so that the circumferential extension is caused, and the carcass is radial split. Therefore, the buffer layer of the radial tire adopts a crossed cord layer which is nearly circumferentially arranged and is intersected with the tire body cord at an angle of 90 degrees, generally 70 degrees to 78 degrees, a rigid annular belt which can hardly stretch is formed, the whole tire is fixed, the circumferential deformation of the tire is limited, the buffer layer bears 60 percent to 70 percent of internal stress of the whole tire and becomes a main stress component of the radial tire, and the buffer layer is called as a belt layer of the radial tire. The main stress components of the bias ply are not on the breaker ply, and 80% to 90% of the internal stress is borne by the plies of the carcass.

The radial tire mainly includes: the tire comprises an inner liner, a tire body film, a tire shoulder pad, a tire crown, a tire sidewall and the like; the tire crown is positioned at the tire crown part, is engraved with patterns and is in direct contact with the ground, and is responsible for transmitting traction force and braking force, has good wear resistance and grip force, and can buffer vibration and impact; and (3) side walls: the tire is positioned on two sides of the tire, and the surfaces are printed with product information such as specifications and models, so that the tire body is protected from mechanical damage and bears the action of larger torque, and the tire has better flex resistance, aging resistance and puncture resistance; shoulder pad: the two ends of the belt layer below the tread are used for absorbing stress from the shoulder of the tread and preventing the belt layer from delaminating due to stress impact; and (3) a carcass: the tire is positioned among the tire tread, the tire side, the belt ply and the inner liner layer, is formed by compounding a layer of steel cord and rubber, has certain strength and elasticity, and can bear strong impact and multiple deformations; and (3) bead: the tire is positioned at the mounting position of the rim, consists of a tire bead steel wire and a tire bead cloth, has a firm structure and is not easy to deform, can bear the acting force caused by the tire pressure of the tire and the operation of a vehicle, and can avoid the separation of the tire and the rim; an inner liner layer: the tire is characterized in that the tire is positioned on the inner layer of the tire and is divided into a transition layer and an airtight layer, the transition layer is mainly used for being attached to a tire body, and the airtight layer has excellent air tightness and can keep the air pressure of the tire and is equivalent to an inner tube.

In the actual production process, the problems of exposed lines in the tire are extremely easy to occur due to the fluctuation of the size and the quality of the semi-finished product, the too low Mooney viscosity of the sizing material of the transition layer, the too large assumed extension value of the tire body cord, improper control of process parameters during molding, fluctuation of the vulcanization process and the like; in the tire manufacturing process, the interval between the carcass cords is increased, which is caused by inflation and shaping expansion, and in order to prevent the butyl rubber of the airtight layer with poor adhesion from penetrating into the carcass ply, directly contacting the carcass ply and causing the carcass line display problem of the carcass shoulder skeleton in the tire, the problem of insufficient rubber between the carcass skeletons is needed to be paid attention to.

Disclosure of Invention

The present application aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the application provides an inner lining composite for improving the tire bead wire, which solves the problems that the interval between carcass cords is increased, the butyl rubber of an airtight layer is not good in adhesion, the butyl rubber is directly contacted with a carcass ply, and the carcass wire of a bead shoulder skeleton is developed in the tire manufacturing process.

An innerliner composite in accordance with an embodiment of the present application for improving tire bead exposure, comprising: the tire comprises an airtight layer, a transition layer and a film piece, wherein the airtight layer is attached to the transition layer, the film piece is fixed on the attaching face of the transition layer, the attaching face of the transition layer is used for attaching to the inside of the tire, and the film piece is arranged between the transition layer and the inner wall of the tire.

According to the scheme, the problems that the interval between carcass cords is increased, the cord rubber is insufficient, the inner liner butyl rubber is permeated in the process of manufacturing the tire, and the problem of tire cavity line exposure caused by fluctuation of the size and quality of a half part, excessively low Mooney viscosity of a transition layer, excessively large assumed stretching value of the carcass cords and the like when the existing equipment is not subjected to space transformation or insufficient funds can be effectively solved.

In a preferred embodiment of the above liner composite for improving the tire bead exposure, the inner liner and the transition layer are annular and correspond to the inner wall of the tire.

In the above preferred embodiment of the liner composite for improving the tire bead exposure, the film member is annular and is disposed at the edge of the outer ring of the transition layer.

In a preferred embodiment of the above liner composite for improving the tire bead exposure, the film member is provided with at least two film members separately provided at positions near the edges of the outer ring of the transition layer.

In a preferred embodiment of the above liner composite for improving tire bead exposure, the bottom planar surface of the film member is bonded to the transition layer; the top end face of the device is in a slope structure from the middle to the edge.

In a preferred embodiment of the above liner composite for improving tire bead exposure, the width of the inner liner is less than the width of the transition layer.

In the above preferred solution of the liner composite for improving the tire bead exposure, the top plane of the inner liner is a connection plane one, and the middle of the bottom plane is a trapezoidal structural surface; the bottom plane of the transition layer is a second connecting plane, and the middle part of the top plane is a trapezoid structural plane; the first connecting plane is fixedly bonded with the second connecting plane, and the film piece is arranged on the trapezoid structural surface of the top plane of the transition layer.

In a preferred embodiment of the above liner composite for improving tire bead exposure, the film member and the transition layer are formed from the same material.

In a preferred embodiment of the above liner composite for improving tire bead exposure, the film member is integrally formed with the transition layer.

A tire, comprising: the tire comprises a tire body, a tire body film, a tire shoulder pad, a tire crown, a tire side and an inner liner, wherein the inner liner is the inner liner composite piece.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of the construction of an innerliner composite for improving tire bead exposure.

FIG. 2 is a schematic structural view of a tire having the innerliner composite.

Reference numerals:

1. an airtight layer; 2. a transition layer; 3. a film piece; 4. a carcass; 5. a carcass film; 6. shoulder cushion rubber; 7. a crown; 8. a sidewall.

Detailed Description

The technical solutions of the present application will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the background technology, in the actual production process, the problems of exposed tire cavity lines are extremely easy to occur due to the fluctuation of the size and the quality of a semi-finished product, the too low Mooney viscosity of a sizing material of a transition layer, the too large assumed stretching value of a tire body cord, improper control of process parameters during molding, fluctuation of a vulcanization process and the like; in the tire manufacturing process, the interval between the carcass cords is increased, which is caused by inflation and shaping expansion, and in order to prevent the butyl rubber of the airtight layer with poor adhesion from penetrating into the carcass ply, directly contacting the carcass ply and causing the carcass line display problem of the carcass shoulder skeleton in the tire, the problem of insufficient rubber between the carcass skeletons is needed to be paid attention to.

In order to solve the problems, the application provides a lining composite part for improving the exposed line of the tire bead, which adopts the structure of an airtight layer, a transition layer and a film part, and adds symmetrical film parts so as to achieve the purpose of supplementing the thickness of shoulder rubber; the sizing material adopts the same formula as the transition layer, and the thickness, the width and the fitting position can be adjusted according to the needs so as to be suitable for the use of tires with different sizes.

Referring to fig. 1, an innerliner composite for improving tire bead exposure in accordance with an embodiment of the application includes: the tire comprises an airtight layer 1, a transition layer 2 and a film piece 3, wherein the airtight layer 1 is attached to the transition layer 2, the film piece 3 is fixed on the attaching surface of the transition layer 2, the attaching surface of the transition layer 2 is used for attaching to the inside of the tire, and the film piece 3 is arranged between the transition layer and the inner wall of the tire.

According to the scheme, the problems that the interval between the tire body 4 cords is increased, the interval is caused by inflation, shaping and expansion in the tire manufacturing process, the cord rubber is insufficient, the inner liner 1 butyl rubber is permeated, and when the existing equipment is free from space transformation or insufficient in funds, the problem of tire liner exposure caused by fluctuation of the size and the quality of half parts, excessively low Mooney viscosity of the transition layer 2, excessively large assumed stretching value of the tire body 4 cords and the like is effectively solved.

In the above preferred embodiment of an innerliner composite for improving the bead exposure of a tire, both the innerliner layer 1 and the transition layer 2 are annular in shape, corresponding to the inner wall of the tire.

In the above preferred embodiment of the lining composite for improving the tire bead exposure, the film member 3 is annular and is disposed at the outer circumferential edge of the transition layer 2.

In the above preferred embodiment of the liner composite for improving the tire bead exposure, the film member 3 is provided with at least two film members separately provided at positions near the edges of the outer circumference of the transition layer 2.

In a preferred embodiment of the above-described liner composite for improving the tire bead exposure, the bottom plane of the film member 3 is bonded to the transition layer 2; the top end face of the device is in a slope structure from the middle to the edge.

In a preferred embodiment of the above-described liner composite for improving the bead exposure of a tire, the width of the inner liner 1 is smaller than the width of the transition layer 2.

In the above preferred embodiment of the liner composite for improving the tire bead exposure, the top plane of the inner liner 1 is the first connecting plane, and the middle of the bottom plane is the trapezoidal structural plane; the bottom plane of the transition layer 2 is a second connecting plane, and the middle part of the top plane is a trapezoid structural plane; the first connecting plane is fixedly bonded with the second connecting plane, and the film piece 3 is arranged on the trapezoid structural surface of the top plane of the transition layer 2.

In the above-described preferred embodiment of an innerliner composite for improving tire bead exposure, the film member 3 is formed of the same material as the transition layer 2.

In the above-described preferred embodiment of an innerliner composite for improving tire bead exposure, the film member 3 is of unitary construction with the transition layer 2.

Referring to fig. 2, in another embodiment of the present application, a tire is disclosed comprising: carcass 4, carcass film 5, shoulder strap 6, crown 7, sidewall 8 and inner liner, the inner liner is the lining composite described above.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. An innerliner composite for improving tire bead exposure, comprising: the tire comprises an airtight layer, a transition layer and a film piece, wherein the airtight layer is attached to the transition layer, the film piece is fixed on the attaching face of the transition layer, the attaching face of the transition layer is used for attaching to the inside of the tire, and the film piece is arranged between the transition layer and the inner wall of the tire.

2. An innerliner composite member for improving the bead wire of a tire as in claim 1, wherein said innerliner and said transition layer are annular in shape and correspond to the inner wall of the tire.

3. A liner composite for improving tire carcass cords as in claim 2, wherein said film member is annular and is disposed at the peripheral edge of said transition layer.

4. A liner composite for improving the bead exposure of a tire according to claim 3 wherein said film member is provided in at least two separate locations on said transition layer outer rim adjacent the rim.

5. A liner composite for improving tire carcass exposure as claimed in claim 4, wherein the bottom planar surface of said film member is bonded to said transition layer; the top end face of the device is in a slope structure from the middle to the edge.

6. A liner composite for improving the bead wire of a tire as in claim 5, wherein the width of said inner liner is less than the width of said transition layer.

7. The liner composite for improving the tire carcass line according to claim 6, wherein the top plane of the inner liner is the first connection plane and the middle of the bottom plane is the trapezoidal structural surface; the bottom plane of the transition layer is a second connecting plane, and the middle part of the top plane is a trapezoid structural plane; the first connecting plane is fixedly bonded with the second connecting plane, and the film piece is arranged on the trapezoid structural surface of the top plane of the transition layer.

8. An innerliner composite member for improving the exposure of a tire carcass as claimed in claim 7, wherein said film member and said transition layer are formed of the same material.

9. A liner composite for improving the bead exposure of a tire as in claim 8, wherein said film member is of unitary construction with said transition layer.

10. A tire, comprising: carcass, carcass film, shoulder wedge, crown, sidewall and inner liner, characterized in that the inner liner is the inner liner composite according to any one of the preceding claims 1-9, which is applied to the inner wall side of the carcass.