CN215321806U - White ring side wall tire and side wall extrusion preforming device - Google Patents
White ring side wall tire and side wall extrusion preforming device Download PDFInfo
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- CN215321806U CN215321806U CN202023217780.5U CN202023217780U CN215321806U CN 215321806 U CN215321806 U CN 215321806U CN 202023217780 U CN202023217780 U CN 202023217780U CN 215321806 U CN215321806 U CN 215321806U
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Abstract
The utility model discloses a white ring sidewall tire and a sidewall extrusion preforming device, which comprise a tread part, a sidewall part and a bead part, wherein the sidewall part comprises a first sidewall rubber positioned at the upper part, a white rubber positioned at the middle part, a second sidewall rubber positioned at the lower part and a bead opening wear-resistant rubber positioned at the bead part; the middle part of the outer side of the white glue is provided with a boss, the upper edge of the top surface of the boss is provided with a first covering glue on the outer side of the white glue, and the lower edge of the top surface of the boss is provided with a second covering glue on the outer side of the white glue; the lower end of the second sidewall rubber is positioned outside the seam allowance wear-resistant rubber. A layer of anti-pollution glue is arranged between the white glue and the carcass ply, so that the white sidewall can be stably displayed for a long time without color change; the anti-pollution glue is positioned on the inner side of the white glue, so that the ageing resistance is ensured; the anti-pollution rubber and the matrix rubber have high adhesion, and the dimensional stability is improved; the pre-opening type pollution-preventing glue flow channel is extruded, and the glue material is extruded compositely, so that the adhesion and the matching stability are improved.
Description
Technical Field
The utility model relates to the technical field of tire structures, in particular to a white ring tire side tire and a tire side extrusion preforming device.
Background
With the continuous progress of automobile technology and the improvement of living standard of people, the requirements on the performance and the appearance of the tire are higher and higher, and the white ring tire is also favored by people more and more. The biggest selling point of the white ring tire is the beautiful appearance of the white ring, so that the white ring tire is guaranteed to keep the original white color and is not discolored, and the white ring tire is the most basic requirement of customers.
The conventional white ring tire sidewall consists of black rubber, white rubber and cover rubber, wherein a large boss is designed on the sidewall and then the regular shape of the white ring tire is realized by polishing; in order to prevent aging such as cracking and the like in the use process, a certain anti-aging agent content is designed in the formula of the black rubber, and the anti-aging agent in the black rubber is easy to migrate upwards to the surface of the white rubber to cause color change of the white rubber under the photo-oxidation condition of normal use of the tire, so that the appearance of the tire is influenced; in the prior art, the content of an anti-aging agent in bottom black rubber is reduced and the time for transferring the anti-aging agent from the bottom black rubber to the surface of white rubber is prolonged by reducing the thickness of the bottom black rubber at the lower part of the sidewall white rubber or increasing the thickness of the white rubber, but the methods cannot fundamentally solve the problem of color change of the tire along with the lapse of the service time of the tire and the increase of the running mileage.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a white ring side tire and a tire side extrusion preforming device, wherein a layer of anti-pollution rubber without an antioxidant is arranged at the bottom of white rubber, so that the problem of white rubber color change caused by upward migration of the antioxidant in black rubber at the bottom of the white rubber is fundamentally solved, and the original anti-aging and conventional service performance of the tire can be ensured.
The technical scheme adopted by the utility model is as follows:
a white-ring sidewall tire comprises a tread portion, a sidewall portion and a bead portion, wherein the sidewall portion comprises a first sidewall rubber positioned at the upper portion of a sidewall, a white rubber positioned in the middle of the sidewall and connected with the first sidewall rubber, a second sidewall rubber positioned at the lower portion of the sidewall and connected with the white rubber, and a bead wear-resistant rubber positioned at the bead portion and connected with the second sidewall rubber, an anti-pollution rubber is arranged between the inner side of the white rubber and a carcass ply, and the upper end and the lower end of the anti-pollution rubber are respectively connected with the first sidewall rubber and the second sidewall rubber; the middle part of the outer side of the white glue is provided with a boss higher than the surface of the tire side, the outer side of the white glue above the upper edge of the top surface of the boss is provided with a first covering glue, and the outer side of the white glue below the lower edge of the top surface of the boss is provided with a second covering glue; and the lower end of the second sidewall rubber is positioned on the outer side of the seam allowance wear-resistant rubber.
A layer of anti-pollution glue without anti-aging agent is arranged between the white glue and the carcass ply, thereby thoroughly preventing the white glue from discoloring due to the migration of the anti-aging agent to the surface of the white glue and ensuring the long-term stable appearance of the white sidewall without discoloring; the anti-pollution glue is positioned on the inner side of the white glue, is not contacted with the external environment, and has low requirement on the anti-aging performance, so that the original anti-aging performance of the tire can be ensured by the anti-pollution glue without the anti-aging agent; the adhesion between the anti-pollution rubber and the tire body rubber is improved, the stability of the tire side is improved, and the phenomenon of cracking and delaminating of the tire side is effectively prevented.
Preferably, the thickness of the anti-contamination glue is 0.5-0.7 mm.
Preferably, the outer side of the upper end of the first covering rubber is flush with the outer side of the first sidewall rubber, and the lower end of the first covering rubber is flush with the top surface of the boss; the outer side of the lower end of the second cover rubber is flush with the outer side of the second sidewall rubber, and the upper end of the second cover rubber is flush with the top surface of the boss, so that the smooth transition of the tire sidewall profile is ensured.
Preferably, the first sidewall rubber upper end is located below the tread portion. Adopt and cover the side structure by the hat, effectively avoided the not inseparable side wall perk and the delaminating phenomenon that arouses of side wall pressfitting, guaranteed the stability in use of side wall.
The utility model also provides a tire side extrusion preforming device for extruding the first tire side rubber, the white rubber, the anti-pollution rubber, the second tire side rubber and the bead wear-resistant rubber at the tire side part of the tire, wherein the tire side extrusion preforming device is of an asymmetric structure and comprises a white rubber flow channel positioned at the right side of the upper part, a black tire side rubber flow channel positioned at the left side of the middle part, a white tire side rubber flow channel positioned at the right side of the middle part, an anti-pollution rubber flow channel, a black tire side bead wear-resistant rubber flow channel positioned at the left side of the lower part and a white tire side bead wear-resistant rubber flow channel positioned at the right side of the lower part, the black tire side rubber flow channel, the white tire side rubber flow channel and the anti-pollution rubber flow channel are positioned on the same straight line, and the white tire side rubber flow channel is positioned at the left side of the anti-pollution rubber flow channel. The tire side extrusion preforming device is designed, the anti-pollution rubber flow channel is increased, the first tire side rubber, the white rubber, the anti-pollution rubber, the second tire side rubber and the sub-opening wear-resistant rubber of the tire side part are extruded in a composite extrusion mode of the extruder, the adhesion and the matching stability between rubber materials are increased, and the use stability of the tire side is improved.
Preferably, the anti-pollution glue flow channel is provided with a baffle plate for adjusting the extrusion amount of the anti-pollution glue; the baffle size is removable, matches according to extrusion equipment aircraft nose, and the suitability is strong.
Compared with the prior art, the utility model provides a white ring side tire and a side extrusion preforming device,
1. a layer of anti-pollution glue without anti-aging agent is arranged between the white glue and the carcass ply, thereby thoroughly preventing the white glue from discoloring due to the migration of the anti-aging agent to the surface of the white glue and ensuring the long-term stable appearance of the white sidewall without discoloring;
2. the anti-pollution glue is positioned on the inner side of the white glue, is not contacted with the external environment, and has low requirement on the anti-aging performance, so that the original anti-aging performance of the tire can be ensured by the anti-pollution glue without the anti-aging agent;
3. the adhesion between the anti-pollution rubber and the tire body rubber is improved, the stability of the tire side is improved, and the phenomena of cracking and delaminating of the tire side are effectively prevented;
4. the tire side extrusion preforming device is correspondingly designed, an anti-pollution rubber flow channel is increased, each rubber material is compositely extruded, the adhesiveness between the rubber materials is increased, the size stability of each rubber material is ensured, and the use stability of the tire side is improved.
Drawings
FIG. 1 is a schematic cross-sectional structural view of a white ring sidewall tire of the present invention;
FIG. 2 is an enlarged view of the portion of the frame A in FIG. 1;
FIG. 3 is a schematic view of the construction of the sidewall extrusion preforming device of the present invention;
FIG. 4 is a schematic cross-sectional view of a tire sidewall of the present invention after extrusion.
Reference numerals: 1. a tread portion; 2. a first sidewall rubber; 3. white glue; 31. a boss; 4. a second sidewall rubber; 5. sub-opening wear-resistant glue; 6. a carcass ply; 7. anti-pollution glue; 8. a first cover glue; 9. a second cover glue; 10. a tire side extrusion preforming device; 101. a white glue flow channel; 102. a black sidewall rubber runner; 103. a white sidewall rubber runner; 104. an anti-pollution glue flow channel; 105. a black tire side seam wear-resistant glue runner; 106. the white side seam allowance wear-resisting glue runner.
Detailed Description
The following detailed description of the utility model refers to specific embodiments thereof for better understanding by those skilled in the art.
A white-ring side wall tire comprises a tread portion 1, a side portion and a bead portion, wherein the side portion comprises a first side wall rubber 2 positioned at the upper part of a side wall, a white rubber 3 positioned in the middle of the side wall and connected with the first side wall rubber 2, a second side wall rubber 4 positioned at the lower part of the side wall and connected with the white rubber 3, and a bead opening abrasion-resistant rubber 5 positioned at the bead portion and connected with the second side wall rubber 4, an anti-pollution rubber 7 is arranged between the inner side of the white rubber 3 and a carcass ply 6, and the upper end and the lower end of the anti-pollution rubber 7 are respectively connected with the first side wall rubber 2 and the second side wall rubber 4; the middle part of the outer side of the white glue 3 is provided with a boss 31 higher than the surface of the tire side, the outer side of the white glue 3 above the upper edge of the top surface of the boss 31 is provided with a first covering glue 8, and the outer side of the white glue 3 below the lower edge of the top surface of the boss 31 is provided with a second covering glue 9; the lower end of the second sidewall rubber 4 is positioned outside the seam allowance wear-resistant rubber 5.
The thickness of the anti-pollution glue 7 is 0.5-0.7 mm.
The outer side of the upper end of the first covering rubber 8 is flush with the outer side of the first sidewall rubber 2, and the lower end of the first covering rubber is flush with the top surface of the boss 31; the outer side of the lower end of the second cover rubber 9 is flush with the outer side of the second sidewall rubber 4, and the upper end of the second cover rubber is flush with the top surface of the boss 31.
The upper end of the first sidewall rubber 2 is located below the tread portion 1.
The present embodiment further provides a sidewall extrusion preforming device 10 for extruding the above-mentioned first sidewall rubber 2, white rubber 3, anti-contamination rubber 7, second sidewall rubber 4, and bead abrasion-resistant rubber 5 of the sidewall portion, as shown in fig. 3, the sidewall extrusion preforming device is an asymmetric structure, and includes a white rubber flow channel 101 located on the upper right side, a black sidewall rubber flow channel 102 located on the middle left side, a white sidewall rubber flow channel 103 and an anti-contamination rubber flow channel 104 located on the middle right side, a black sidewall bead abrasion-resistant rubber flow channel 105 located on the lower left side, and a white sidewall bead abrasion-resistant rubber flow channel 106 located on the lower right side, where the black sidewall rubber flow channel 102, the white sidewall rubber flow channel 103, and the anti-contamination rubber flow channel 104 are located on the same horizontal line, and the white sidewall rubber flow channel 103 is located on the left side of the anti-contamination rubber flow channel 104. The anti-pollution glue flow channel 104 is provided with a baffle plate, and the size of the baffle plate is replaceable and is used for adjusting the extrusion amount of the anti-pollution glue.
As shown in fig. 4, which is a schematic diagram of a cross-sectional structure of a tire after being extruded by a tire side extrusion preforming device 10, a tire blank is vulcanized by using a vulcanization mold after being molded, and then the vulcanized tire is ground according to a set grinding line, so as to finally obtain the tire cross-sectional structure shown in fig. 1.
The white ring side tire and the side extrusion preforming device provided by the utility model are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are set forth only to aid in understanding the methods and concepts of the utility model, and the directional terms used are, for example: upper, lower, left, right, front, rear, etc. are directions with reference to the drawings only, and directional terms used are intended to illustrate and not to limit the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. A white-ring sidewall tire comprises a tread portion, a sidewall portion and a bead portion, and is characterized in that the sidewall portion comprises a first sidewall rubber positioned at the upper portion of a sidewall, a white rubber positioned in the middle of the sidewall and connected with the first sidewall rubber, a second sidewall rubber positioned at the lower portion of the sidewall and connected with the white rubber, and a bead wear-resistant rubber positioned at the bead portion and connected with the second sidewall rubber, wherein an anti-pollution rubber is arranged between the inner side of the white rubber and a carcass ply, and the upper end and the lower end of the anti-pollution rubber are respectively connected with the first sidewall rubber and the second sidewall rubber; the middle part of the outer side of the white glue is provided with a boss higher than the surface of the tire side, the outer side of the white glue above the upper edge of the top surface of the boss is provided with a first covering glue, and the outer side of the white glue below the lower edge of the top surface of the boss is provided with a second covering glue; and the lower end of the second sidewall rubber is positioned on the outer side of the seam allowance wear-resistant rubber.
2. The white-ring sidewall tire according to claim 1, wherein said anti-soiling glue has a thickness of 0.5 to 0.7 mm.
3. The white-ring sidewall tire of claim 1, wherein said first overlay rubber has an upper outer side flush with said first sidewall rubber outer side and a lower end flush with said top land surface; the outer side of the lower end of the second cover rubber is flush with the outer side of the second sidewall rubber, and the upper end of the second cover rubber is flush with the top surface of the boss.
4. The white-ring sidewall tire of claim 1, wherein said first sidewall rubber upper end is located below said tread portion.
5. A sidewall extrusion preforming device for compositely extruding the sidewall of the white-ring sidewall tire as claimed in any one of claims 1 to 4, wherein the sidewall extrusion preforming device is of an asymmetric structure and comprises a white rubber runner on the upper right side, a black sidewall rubber runner on the middle left side, a white sidewall rubber runner and an anti-pollution rubber runner on the middle right side, a black sidewall sub-port wear-resistant rubber runner on the lower left side, and a white sidewall sub-port wear-resistant rubber runner on the lower right side, wherein the black sidewall rubber runner, the white sidewall rubber runner and the anti-pollution rubber runner are located on the same horizontal line, and the white sidewall rubber runner is located on the left side of the anti-pollution rubber runner.
6. The tire side extrusion preforming device of claim 5, wherein the anti-contamination glue flow passage is provided with a baffle plate, and the baffle plate is replaceable in size for adjusting the extrusion amount of the anti-contamination glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023217780.5U CN215321806U (en) | 2020-12-28 | 2020-12-28 | White ring side wall tire and side wall extrusion preforming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023217780.5U CN215321806U (en) | 2020-12-28 | 2020-12-28 | White ring side wall tire and side wall extrusion preforming device |
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| Publication Number | Publication Date |
|---|---|
| CN215321806U true CN215321806U (en) | 2021-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023217780.5U Active CN215321806U (en) | 2020-12-28 | 2020-12-28 | White ring side wall tire and side wall extrusion preforming device |
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| Country | Link |
|---|---|
| CN (1) | CN215321806U (en) |
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- 2020-12-28 CN CN202023217780.5U patent/CN215321806U/en active Active
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