CN221272092U - Radial tire inner liner calendering double-wing roller structure - Google Patents
Radial tire inner liner calendering double-wing roller structure Download PDFInfo
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- CN221272092U CN221272092U CN202322892264.XU CN202322892264U CN221272092U CN 221272092 U CN221272092 U CN 221272092U CN 202322892264 U CN202322892264 U CN 202322892264U CN 221272092 U CN221272092 U CN 221272092U
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- annular groove
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- notch
- groove
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- 238000003490 calendering Methods 0.000 title claims abstract description 22
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 abstract description 7
- 238000005422 blasting Methods 0.000 abstract description 3
- 238000010618 wire wrap Methods 0.000 description 13
- 239000011324 bead Substances 0.000 description 11
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 239000004744 fabric Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Abstract
The utility model relates to a radial tire inner liner calendering double-wing roller structure, which is characterized in that a first annular groove and a second annular groove are respectively arranged on the outer circle of the left end and the outer circle of the right end of a calendering roller body, a third annular groove and a fourth annular groove are arranged on the outer circle of the calendering roller body between the corresponding first annular groove and second annular groove, the width of the notch of the first annular groove and the width of the notch of the second annular groove are smaller than the width of the notch of the third annular groove and the width of the notch of the fourth annular groove, and the depth of the first annular groove and the depth of the second annular groove are smaller than the depth of the third annular groove and the depth of the fourth annular groove. The radial tire inner liner component produced by the utility model greatly reduces the occurrence rate of air bubbles at the inner end points of the tire openings, solves the problem that the inner end points of the tire openings in the tubeless tire blank arrangement puncture the air tightness of the inner liner, and further solves a series of quality risks such as too low tire pressure rolling damage, tire side blasting, tire side, tire opening bulge and the like caused by slow air leakage in the use process of the finished tire.
Description
Technical Field
The utility model relates to the technical field of tire manufacturing devices, and particularly discloses a radial tire inner liner calendaring double-wing roller structure.
Background
Among various semi-finished components forming the all-steel radial tire, the inner liner component corresponds to the tire cavity part, plays roles in protecting the tire body cord fabric and keeping the tire pressure, the shape of the inner liner component directly influences the appearance quality and performance of the tire, and the production process of the inner liner component is as follows: extruding the sizing material by a screw of an extruder, and molding the shape of the inner liner by adopting an upper roller die and a lower roller die.
The domestic existing technologies are divided into two types:
The first type roller takes the middle part in the length direction as the minimum part of the outer diameter and takes the shape of gradually increasing the outer diameter towards the two ends, and has the following defects:
① The inner liner component produced by the roller has insufficient thickness at the corresponding tire shoulder part, can not compensate for the material deficiency caused by the fluctuation of the sizes of the tire shoulder part tread, rubber cushion and other components, and the embryo using the inner liner component is influenced by (2.5-2.6) MPa internal pressure in the tire vulcanization process, so that the inner liner at the corresponding tire shoulder part in the vulcanized finished tire is easily thinned, the quality risk of exposing the steel cord of the finished tire carcass exists, and the occurrence probability of U-shaped explosion quality problem of the tire in the use process is increased; further, in order to solve the quality problem of U burst, the domestic tire manufacturing technology generally adopts the technology of attaching a film to the lining layer, and the technology of attaching the film increases the cost loss of film production energy consumption, transportation, labor, quality defects and the like;
② The lining layer part produced by the roller is thinner at the position corresponding to the inner end point of the bead wire wrapping cloth, and has the following structure: a. the inner side of the bead wire pierces the liner to expose and damage the air tightness of the tire; b. further, in order to solve the problem of steel wire puncture, the domestic tire manufacturing technology generally adopts a technical method of adding a wrapping edge or an isolating film at the inner end point of the bead steel wire wrapping cloth, and as the wrapping edge increases the thickness of the end point and the isolating film is easy to fold, the problem that the tire air tightness is damaged by puncturing the lining and exhausting in the tire blank trimming and repairing process is caused by the tire cavity air bubbles caused by the end point air in the tire blank opening commonly existing in the manufacturing process is further caused;
The second type of forming roller is based on the first type of forming roller, and is provided with a groove at a distance from the middle part in the length direction and corresponding to the tire shoulder part, so that the thickness of the position of the lining layer part is increased;
The roller solves the problem that the lining layer of the tire corresponding to the tire shoulder part in the tire liner of the vulcanized finished tire is thinner, and solves the quality problem of U-shaped explosion of the tire in the use process caused by the exposure of the steel wire cord of the tire body;
However, the problem that the thickness of the inner liner layer corresponding to the inner end point of the bead wire wrapping cloth is thinner cannot be solved by the roller, and a series of risk problems of damaging the air tightness of the finished tire still exist.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a brand-new calendaring type roller structure of a radial tire inner liner.
According to the technical scheme provided by the utility model, the radial tire inner liner calendering double-wing roller structure comprises a cylindrical calendering roller body, wherein a first annular groove and a second annular groove are respectively arranged on the left end excircle and the right end excircle of the calendering roller body, the notch width of the first annular groove is larger than the groove bottom width, the notch width of the second annular groove is larger than the groove bottom width, a third annular groove and a fourth annular groove are arranged on the excircle of the calendering roller body corresponding to the first annular groove and the second annular groove, the third annular groove is positioned on the left side of the fourth annular groove, the notch width of the third annular groove is larger than the groove bottom width, the notch width of the fourth annular groove is larger than the groove bottom width, the notch widths of the first annular groove and the second annular groove are both smaller than the notch widths of the third annular groove and the fourth annular groove, and the depth of the first annular groove and the second annular groove are both smaller than the depth of the third annular groove and the fourth annular groove.
Preferably, the first annular groove and the second annular groove are symmetrically arranged, and the width of the notch, the width of the groove bottom and the depth of the groove body of the first annular groove and the second annular groove are correspondingly equal.
Preferably, the third annular groove and the fourth annular groove are symmetrically arranged, and the width of the notch, the width of the groove bottom and the depth of the groove body of the third annular groove and the width of the groove body of the fourth annular groove are all correspondingly equal.
Preferably, the side surfaces of the first annular groove, the second annular groove, the third annular groove and the fourth annular groove are conical surfaces.
The radial tire inner liner component produced by the utility model greatly reduces the occurrence rate of air bubbles at the inner end points of the tire openings, solves the problem that the inner end points of the tire openings in the tubeless tire blank arrangement puncture the air tightness of the inner liner, and further solves a series of quality risks such as too low tire pressure rolling damage, tire side blasting, tire side, tire opening bulge and the like caused by slow air leakage in the use process of the finished tire.
Drawings
FIG. 1 is a schematic representation of the results of the present utility model.
FIG. 2 is a schematic representation of the results of a radial tire innerliner component produced using the utility model.
Detailed Description
The utility model will be further illustrated with reference to specific examples.
The radial tire inner liner calendering double-wing roller structure comprises a cylindrical calendering roller body 1, wherein a first annular groove 1.1 and a second annular groove 1.2 are respectively arranged on the left end excircle and the right end excircle of the calendering roller body 1, the groove opening width of the first annular groove 1.1 is larger than the groove opening width, the groove opening width of the second annular groove 1.2 is larger than the groove opening width, a third annular groove 1.3 and a fourth annular groove 1.4 are arranged on the excircle of the calendering roller body 1 corresponding to the first annular groove 1.1 and the second annular groove 1.2, the third annular groove 1.3 is positioned on the left side of the fourth annular groove 1.4, the groove opening width of the third annular groove 1.3 is larger than the groove opening width, the groove opening width of the fourth annular groove 1.4 is larger than the groove opening width, the groove opening widths of the first annular groove 1.1 and the second annular groove 1.2 are smaller than the groove opening widths of the third annular groove 1.3 and the fourth annular groove 1.4, and the groove depths of the first annular groove 1.1 and the second annular groove 1.3 and the fourth annular groove 1.2 are smaller than the groove depths of the fourth annular groove 1.4.
The first annular groove 1.1 and the second annular groove 1.2 are symmetrically arranged, and the width of the notch, the width of the groove bottom and the depth of the groove body of the first annular groove 1.1 and the second annular groove 1.2 are correspondingly equal.
The third annular groove 1.3 and the fourth annular groove 1.4 are symmetrically arranged, and the width of the notch, the width of the groove bottom and the depth of the groove body of the third annular groove 1.3 and the fourth annular groove 1.4 are correspondingly equal.
The side surfaces of the first annular groove 1.1, the second annular groove 1.2, the third annular groove 1.3 and the fourth annular groove 1.4 are conical surfaces.
In operation, the calendaring double-wing roller of the radial tire inner liner is matched with the straight roller, the outer circle of the double-wing calendaring roller and the outer circle of the straight roller are separated by a distance, the radial tire inner liner component 2 is calendared, the thickness of the radial tire inner liner component 2 corresponding to the inner end point position of the outer bead wire wrap, the inner end point position of the inner bead wire wrap, the outer shoulder position and the inner shoulder position is increased, the radial tire inner liner component 2 corresponding to the inner end point position of the outer bead wire wrap corresponds to the position of the first annular groove, the radial tire inner liner component 2 corresponding to the inner end point position of the inner bead wire wrap corresponds to the position of the second annular groove 1.2, the radial tire inner liner component 2 corresponding to the outer shoulder position corresponds to the position of the third annular groove 1.3, and the radial tire inner liner component 2 corresponding to the inner shoulder position corresponds to the position of the fourth annular groove 1.4. Wherein, the thickness of the radial tire inner liner component 2 corresponding to the inner end point position of the outer bead wire wrap and the inner end point position of the inner bead wire wrap is increased, and the radial tire inner liner component has the following advantages:
1. The risk of the inner end point of the bead wire at the position, which is caused by the thin thickness, of the conventional radial tire inner liner component 2 penetrating through the inner liner is eliminated;
2. The inner end point position of the outer side rim opening steel wire wrapping cloth and the edge wrapping and isolating films of the inner end point position of the inner side rim opening steel wire wrapping cloth can be replaced, the thicknesses of the outer side rim opening steel wire Bao Buna end points and the inner end point of the inner side rim opening steel wire wrapping cloth can be reduced, and the exhaust in the tire blank forming process is facilitated, so that the tire blank bubble generation rate at the corresponding position is reduced;
3. The risk of damaging the air tightness of the lining layer of the tire cavity caused by puncturing when the tire blank is subjected to bubble arrangement at the position is reduced;
4. The cost loss of energy consumption, transportation, labor, quality defects and the like of film production is reduced after the edge wrapping and film isolation of the inner end point position of the steel wire wrapping cloth of the outer side seam allowance are replaced.
The radial tire inner liner member 2 having the outside shoulder position and the inside shoulder position is increased in thickness, and has the following advantages:
1. the problem of frequent U-shaped blasting can be solved;
2. Can make up the hidden quality trouble of the exposed wires in the tire cavity caused by the fluctuation of the sizes of tread rubber and shoulder pad rubber.
Claims (4)
1. The utility model provides a radial tire inner liner calendering double wing profile roller structure, is cylindric calendering formula roller body (1), characterized by including being: the rolling type roller comprises a rolling type roller body (1), and is characterized in that a left end excircle and a right end excircle of the rolling type roller body (1) are respectively provided with a first annular groove (1.1) and a second annular groove (1.2), the notch width of the first annular groove (1.1) is larger than the groove bottom width, the notch width of the second annular groove (1.2) is larger than the groove bottom width, a third annular groove (1.3) and a fourth annular groove (1.4) are arranged on the excircle of the rolling type roller body (1) corresponding to the first annular groove (1.1) and the second annular groove (1.2), the third annular groove (1.3) is located on the left side of the fourth annular groove (1.4), the notch width of the third annular groove (1.3) is larger than the groove bottom width, the notch width of the fourth annular groove (1.4) is larger than the groove bottom width, the notch widths of the first annular groove (1.1) and the second annular groove (1.2) are smaller than the notch widths of the third annular groove (1.3) and the fourth annular groove (1.4), and the notch widths of the first annular groove (1.1.3) and the fourth annular groove (1.4) are smaller than the notch widths of the third annular groove (1.1.3).
2. The radial tire innerliner calendaring twin airfoil roll structure of claim 1, wherein: the first annular groove (1.1) and the second annular groove (1.2) are symmetrically arranged, and the width of the notch, the width of the groove bottom and the depth of the groove body of the first annular groove (1.1) and the second annular groove (1.2) are correspondingly equal.
3. The radial tire innerliner calendaring twin airfoil roll structure of claim 1, wherein: the third annular groove (1.3) and the fourth annular groove (1.4) are symmetrically arranged, and the width of the notch, the width of the groove bottom and the depth of the groove body of the third annular groove (1.3) and the fourth annular groove (1.4) are correspondingly equal.
4. The radial tire innerliner calendaring twin airfoil roll structure of claim 1, wherein: the side surfaces of the first annular groove (1.1), the second annular groove (1.2), the third annular groove (1.3) and the fourth annular groove (1.4) are conical surfaces.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221272092U true CN221272092U (en) | 2024-07-05 |
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| GR01 | Patent grant |