CN100471662C - Curtain cloth difference grade sealing method and tyre production using the method - Google Patents
Curtain cloth difference grade sealing method and tyre production using the method Download PDFInfo
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- CN100471662C CN100471662C CNB2007100501433A CN200710050143A CN100471662C CN 100471662 C CN100471662 C CN 100471662C CN B2007100501433 A CNB2007100501433 A CN B2007100501433A CN 200710050143 A CN200710050143 A CN 200710050143A CN 100471662 C CN100471662 C CN 100471662C
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Abstract
The present invention discloses a ply staggered sealing method and a tyre produced by adopting the method; the present invention does not change the staggered applying method of the normal tyre cord stage, only pasting sealing films on the circumference of the end parts of an internal layer ply drum turnings stage, an external layer ply drum turnings stage, a resilient coating ply stage, a steel ring wrapping cloth stage and a tyre turn down stage which have stepped places; each ply staggered sealing film uses films with different thickness according to the accepted stress of each stage; as the thickness of the sealing film is small, when the tyre is charged and expanded to be molded, the sealing film is unable to obstruct the widen of the cord yarn span of the staggered position, and the cord yarn span of the staggered position brings into correspondence with the other cord yarn spans on the circumference; after vulcanizing, the sealing film is capable of being melted with the tyre body; the sealing film enlarges the splicing area at the end head, enhances the adhesion strength of the tyre ply staggered part, and prevents the problems of the ply such as delamination, crack opening and end head gapping, etc.
Description
(1) technical field:
The present invention relates to a kind of tire production method, particularly a kind of curtain cloth difference grade sealing method and make in this way the tire of producing.
(2) background technology:
At present, common cross-ply is widely used on various full-sized cars.Cross-ply is meant that casing ply and each adjacent layer cord of cushion intersect, and is the tire of arranging less than 90 ° of angles with circumferential line, and it mainly is made up of tyre surface, casingply, cushion, inner liner and tyre bead.Tyre surface is the extexine of cover tire, comprises crown, tire shoulder and sidewall three parts.Casingply is the skeleton of cover tire, also claims carcass, is formed with rubber adhesion by multilayer kiss-coating cord usually, and it mainly acts on is bearing load, keeps the shape and size of cover tire, makes cover tire have certain intensity.Cushion is between tyre surface and casing ply, generally make with two-layer or several layers of more sparse cord and the bigger rubber of elasticity, its elasticity is bigger, suffered impact in the time of relaxing automobile and on uneven road surface, travel, and prevent that automobile breaks away from snub braking time tyre surface and casing ply.Tyre bead is made up of wire loop, cord bound edge and chafer, has very big rigidity and intensity, can make firm being contained on the wheel rim of tire.
For oblique giant embryo, tire can bear very large stress in the ground connection rolling process of bearing load.The casing ply of present oblique crossing large tyre and cushion generally all roll good rubberized cord in advance by multilayer and form by the cutting applying, step appears in the horizontal end at the anti-package wire loop position that directly the piling up of multilayer cord can be caused casingply and the tire shoulder position of cushion, this must cause tire in use the stress at end points place concentrate, existing solution is to adopt the dislocation method of attaching to avoid the generation of end effect casingply and cushion.But, because casingply is more, only adopt the wrong mode of pasting of cord, can not solve problems such as casing ply anti-package difference level end points cord head is exposed.In use tire can be poor because of curtain cloth difference grade end points bond properties, and cause the end delamination of casing ply difference level and come to nothing, and then the crisis traffic safety.
(3) summary of the invention:
The objective of the invention is to disclose and a kind ofly can effectively improve the curtain cloth difference grade sealing method of casing ply difference level termination bonding strength and make the tire of producing in this way.
Curtain cloth difference grade sealing method of the present invention, comprise that internal layer bandage anti-package difference level, outer bandage anti-package difference level, cushion curtain cloth difference grade, steel ring infantees difference level, tire are just wrapping the difference level, do not change the mistake subsides method of conventional tire curtain cloth difference grade, just on the circumference at step place appears in the position, termination of casing ply difference level, post one and seal film.Seal film and strengthened the bond area of end, improved the bonding strength at cotton tyre cord difference level position, prevent that cord from producing delamination, breach and termination problem such as come to nothing.
In order effectively to cover position, casing ply difference level termination, the described width that seals film should be greater than the poor level width of casing ply, and is at least also identical with the poor level width of casing ply.
Describedly seal the rectangle adhesive tape that film is width 40mm～120mm, its thickness is 0.4mm～1.2mm.
Practical operation posts one in the termination of difference level and seals film after each difference level can being fitted; The center at the position, termination of casing ply difference level is overlapping with the center line that seals film; Use the pressure roller compacting after on posting, sealing film, make the casing ply at difference level position and seal the stickup of film consolidation.
Described each curtain cloth difference grade sealing film can be selected the adhesive tape of same thickness for use, also can select the adhesive tape of different-thickness according to the difference of the suffered stress of each difference level for use, and it is little to seal film thickness, when the moulding of carcass inflation, can not hinder widening of difference level position cord spacing, the spacing of other cord is consistent on the cord spacing at difference level position and the circumference.Thickness as internal layer bandage anti-package difference level and steel ring infantees difference grade sealing film equates; The thickness that seals film that outer bandage anti-package difference level, buffering curtain cloth difference grade and tire are just wrapping the difference level equates; And the thickness of internal layer bandage anti-package difference level and steel ring infantees difference grade sealing film is just wrapping the thickness that seals film of difference level less than outer bandage anti-package difference level, buffering curtain cloth difference grade and tire.After sulfuration, seal film and carcass and merge.
The tire that the present invention uses curtain cloth difference grade sealing method to produce comprises tyre surface, casingply, cushion, inner liner, tyre bead; The outer bandage anti-package of the steel ring infantees difference level that each layer cord forms, carcass internal layer bandage anti-package difference level and carcass difference level, the cushion curtain cloth difference grade at cushion cord two ends, tire are just wrapping the difference level, add on the circumference at any one or two or a plurality of position, termination in the curtain cloth difference grade and post the sealing compound sheet.
The described width that seals film is greater than or equal to the poor level width of casing ply.
These seal film be width between 40mm～120mm, the rectangle film of thickness between 0.4mm～1.2mm.
The film thickness that seals of described internal layer bandage anti-package difference level and steel ring infantees difference level seals film thickness less than what outer bandage anti-package difference level, buffering curtain cloth difference grade and tire were just wrapping the difference level.
Curtain cloth difference grade sealing method of the present invention and make in this way the advantage of the tire of producing be:
1, pastes on the basis that forms the difference level in the cord fault of routine, increase and seal film, strengthened the intensity at the position, termination of casing ply difference level, guarantee the problem of coming to nothing in tire delamination, breach and termination, guaranteed tire quality.
2, this law is simple, does not increase equipment.
(4) description of drawings:
Fig. 1 is a curtain cloth difference grade position partial schematic diagram in a kind of tire building process of embodiment;
Fig. 2 is the structural representation behind the tire building of Fig. 1.
Description of drawings: 1, tyre surface 2, cushion 3, buffering curtain cloth difference grade 4, outer bandage anti-package difference level 5, tire are just wrapping difference level 6, steel ring infantees difference level 7, are sealing film 8, tyre bead 9, internal layer bandage anti-package difference level 10, casingply 11, inner liner
(5) specific embodiment:
Below in conjunction with accompanying drawing present embodiment is described in further details.
As shown in Figure 1, the step of curtain cloth difference grade sealing method embodiment is as follows:
1) film 7 is sealed in preparation, with three roller film calender machines calendering width is 100mm, and thickness is that 0.6mm and width are 100mm, and thickness is two kinds of rectangle films of 0.9mm, to seal film 7 with shield and roll stand-byly, it uses length identical with the circumference at position, casing ply difference level termination.
2) a plurality of width of gained are 100mm, and thickness is that the rectangle film of 0.6mm is affixed on internal layer bandage anti-package difference level 9 positions and steel ring infantees difference level 6 positions respectively, and the center at position, casing ply difference level termination is overlapping with the center line that seals film 7.
3) a plurality of width of gained are 100mm, thickness is that the rectangle film of 0.9mm is affixed on outer bandage anti-package difference level position 4 respectively, buffering curtain cloth difference grade 3 and tire are just wrapping a difference level position, 5 termination, and the center at position, casing ply difference level termination is overlapping with the center line that seals film 7;
4) before moulding, will seal on the film 7 compacting at position, casing ply difference level termination, and make and seal film 7 and paste consolidation with casing ply difference level place with pressure roller.
The fetus of above-mentioned steps gained is prepared tire as shown in Figure 2 after technologies such as overmolding, sulfuration, comprise tyre surface 1, casingply 10, cushion 2, inner liner 11 and tyre bead 8; The steel ring infantees difference level 6 of anti-package wire loop, carcass internal layer bandage anti-package difference level 9 and outer bandage anti-package difference level 4, the cushion curtain cloth difference grade 3 at cushion casing ply two ends, tire are just wrapping all to post on the difference level 5 and are sealing film 7.The width that respectively seals film 7 is identical with subsides casing ply difference level width; The film thickness that seals at internal layer bandage anti-package difference level 9 and steel ring infantees difference level 6 places seals film 7 thickness less than what outer bandage anti-package difference level 4, buffering curtain cloth difference grade 3 and tire were just wrapping difference level 5 places, its ectomesoderm bandage anti-package difference level 4 places seal film 7 thickness and cushion curtain cloth difference grade 3 and tire just wrapping difference grade 5 places to seal film 7 thickness identical; Film 7 thickness that seal that steel wire anti-package difference level 6 and tire are just wrapping 5 difference level places equate with the film thickness that seals at internal layer bandage anti-package difference level 9 places.
Curtain cloth difference grade sealing method of the present invention is specially adapted to use in the production of oblique crossing large tyre.
Claims (10)
1, curtain cloth difference grade sealing method comprises that internal layer bandage anti-package difference level (9), outer bandage anti-package difference level (4), cushion curtain cloth difference grade (3), steel ring infantees difference level (6), tire are just wrapping difference level (5), is characterized in that:
In curtain cloth difference grade, add on the circumference at any one or position, more than one termination and post sealing compound sheet (7).
2, curtain cloth difference grade sealing method according to claim 1 is characterized in that:
The described width that seals film (7) is greater than or equal to the poor level width of casing ply.
3, curtain cloth difference grade sealing method according to claim 2 is characterized in that:
The described film (7) that seals is the rectangle film of width between 40mm～120mm.
4, curtain cloth difference grade sealing method according to claim 3 is characterized in that:
The described thickness that seals film (7) is 0.4mm～1.2mm.
5, according to each described curtain cloth difference grade sealing method in the claim 1～4, it is characterized in that:
Seal film (7) with what the pressure roller compacting was pasted in casing ply difference level end.
6, the tire that uses curtain cloth difference grade sealing method to produce comprises tyre surface (1), casingply (10), cushion (2), inner liner (11) and tyre bead (8); The outer bandage anti-package difference level (4) of the steel ring infantees difference level (6) that each layer cord forms, carcass internal layer bandage anti-package difference level (9) and carcass, the cushion curtain cloth difference grade (3) at cushion cord two ends, tire are just wrapping difference level (5), it is characterized in that:
Add on the circumference at any one or two or a plurality of position, termination in the described curtain cloth difference grade and post sealing compound sheet (7).
7, the tire of use curtain cloth difference grade sealing method production according to claim 6 is characterized in that:
The described width that seals film (7) is greater than or equal to the poor level width of casing ply.
8, the tire of use curtain cloth difference grade sealing method production according to claim 7 is characterized in that:
The described film (7) that seals is the rectangle film of width between 40mm～120mm.
9, the tire of use curtain cloth difference grade sealing method production according to claim 8 is characterized in that:
The described thickness that seals film (7) is 0.4mm～1.2mm.
10, the tire of producing according to any described use curtain cloth difference grade sealing method in the claim 6～9 is characterized in that:
The thickness of described internal layer bandage anti-package difference level and steel ring infantees difference grade sealing film is less than the thickness of outer bandage anti-package difference level and buffering curtain cloth difference grade sealing film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100501433A CN100471662C (en) | 2007-09-27 | 2007-09-27 | Curtain cloth difference grade sealing method and tyre production using the method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100501433A CN100471662C (en) | 2007-09-27 | 2007-09-27 | Curtain cloth difference grade sealing method and tyre production using the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101125463A CN101125463A (en) | 2008-02-20 |
| CN100471662C true CN100471662C (en) | 2009-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100501433A Expired - Fee Related CN100471662C (en) | 2007-09-27 | 2007-09-27 | Curtain cloth difference grade sealing method and tyre production using the method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100471662C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102514216A (en) * | 2011-12-30 | 2012-06-27 | 中橡集团曙光橡胶工业研究设计院 | Compression roller with compression roller curve matched with steel ring compression face and method for compressing steel ring wrapping fabric |
| CN103978839A (en) * | 2014-05-05 | 2014-08-13 | 中橡集团曙光橡胶工业研究设计院 | Method for preventing large hierarchical aircraft tire cord fabric backward-packed ends from being disengaged |
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2007
- 2007-09-27 CN CNB2007100501433A patent/CN100471662C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN101125463A (en) | 2008-02-20 |
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Granted publication date: 20090325 Termination date: 20160927 |