CN102615843B - Airtyred manufacture method - Google Patents
Airtyred manufacture method Download PDFInfo
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- CN102615843B CN102615843B CN201110326743.4A CN201110326743A CN102615843B CN 102615843 B CN102615843 B CN 102615843B CN 201110326743 A CN201110326743 A CN 201110326743A CN 102615843 B CN102615843 B CN 102615843B
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 35
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 147
- 239000010959 steel Substances 0.000 claims abstract description 147
- 239000011324 bead Substances 0.000 claims abstract description 139
- 238000004804 winding Methods 0.000 claims abstract description 45
- 238000003825 pressing Methods 0.000 claims abstract description 40
- 238000005096 rolling process Methods 0.000 claims abstract description 29
- 238000012407 engineering method Methods 0.000 abstract description 10
- 239000003292 glue Substances 0.000 description 10
- 239000011159 matrix material Substances 0.000 description 6
- 241000254043 Melolonthinae Species 0.000 description 4
- 210000003754 fetus Anatomy 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005486 sulfidation Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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- Tyre Moulding (AREA)
- Tires In General (AREA)
Abstract
The invention provides a kind of airtyred manufacture method.Use core be shaped tire green tire engineering method in, steel bead wire is directly spirally pasted onto on core.The manufacture method of pneumatic tire (1) comprises steel bead wire rolling step, the outer surface of the bead part (4) in inner liner (9) and/or at the outer surface of the bead part (4) of carcass ply (6A) that is steel wire sticking veneer (S), spirally pastes steel bead wire (10) around tire rotation axle.Above-mentioned steel bead wire rolling step comprises: fixation with steel wire operation, and the winding top (10e) of steel bead wire is fixed on above-mentioned steel wire sticking veneer (S); Steel wire spiral rolling step, rotate around tire rotation axle by making above-mentioned core (N), and at the pressing position (T) pressed by pressing roller (20), steel bead wire is pasted on above-mentioned steel wire sticking veneer (S) along tire circumference, and the tire rotation axle of above-mentioned core (N) is tilted to make above-mentioned pressing position move to the tire radial outside of above-mentioned core (N).
Description
Technical field
The present invention relates to using in core engineering method that the green tire of tire is shaped, by steel bead wire is directly spirally pasted on core, by and the airtyred manufacture method of bead core shaping.
Background technology
In the past, in following patent document 1, proposed a kind of airtyred manufacture method, as shown in figure 12, the method use have with fill in press time the core N (hereinafter referred to as " core engineering method ") of outer peripheral face of tire inner surface shape approximation.In this core engineering method, inner liner 9, inside and outside triangle rubber 8i, 8o, carcass ply 6A, bead core 5, belt 7, tread rubber 2G and sidewall rubber 3G etc. is pasted successively by the outside at core N, be shaped green tire 1a, and green tire 1a is carried out sulfuration together with core N.In the method, due to the stretching of the carcass acted in sulfidation, belt etc. is suppressed to less, so the advantage that the uniformity with raising pneumatic tire 1 is such.
But, in above-mentioned core engineering method, cannot turning back of carcass ply 6A both ends be carried out.Therefore, the bead core 5 of the green tire 1a be shaped by core engineering method, adopts the steel wire coiling body 5a of steel bead wire 10 along the radial spirally overlapping winding of tire, is configured at the both sides of carcass ply 6A to clamp the structure of carcass ply 6A.Therefore, as shown in Figure 11 (a), (b), above-mentioned bead core 5, such as by the steel wire coiling body 5a of winding shaping on the fixture J of ring-type in advance, crimps and moves and to put to the tyre bead forming face B in the outside etc. of the Triangle ID glue 8i being pasted onto core N and to be formed.
But the diameter of steel wire coiling body 5a is also different due to the difference according to tire size, so above-mentioned method needs to prepare multiple fixture according to each tire size.In addition, when the tire size that will manufacture occurs to change, the operation carrying out changing fixture is also needed.Therefore, there is manufacturing cost problem so greatly in core engineering method in the past.
Patent document 1: Japanese Unexamined Patent Publication 2006-160236 publication
Summary of the invention
The present invention proposes in view of problem such above, its object is to, thering is provided a kind of in core engineering method, by steel bead wire being directly spirally pasted onto bead core that steel wire sticking veneer is shaped, thus the airtyred manufacture method of manufacturing cost can be cut down.
Invention in the present invention described in technical scheme 1, it is a kind of airtyred manufacture method, manufacture the airtyred method with the ring-type in pair of bead portion, it is characterized in that, comprise steel bead wire rolling step, on this outer surface of core with the outer surface that above-mentioned airtyred inner cavity surface can be shaped, with ring-type across both sides bead part between the outer surface of the bead part of inner liner pasted of mode, and/or the outside of above-mentioned inner liner with ring-type across both sides bead part between the outer surface of the bead part of carcass ply pasted of mode that is steel wire sticking veneer on, the steel bead wire covered by rubber is spirally pasted around tire rotation axle, above-mentioned steel bead wire rolling step comprises: fixation with steel wire operation, pressing roller is utilized the winding top of steel bead wire to be fixed to the above-mentioned steel wire sticking veneer being pasted on core, and steel wire spiral rolling step, by while above-mentioned steel bead wire is sent to core side while make above-mentioned core rotate around tire rotation axle, at the pressing position pressed by above-mentioned pressing roller, steel bead wire is pasted on above-mentioned steel wire sticking veneer along tire circumference thus, and makes the tire rotation axle of above-mentioned core tilt to make above-mentioned pressing position to move to the tire radial outside of above-mentioned core continuously or periodically.
In addition, the invention described in technical scheme 2, in the airtyred manufacture method described in technical scheme 1, comprises by making above-mentioned core move the operation thus above-mentioned pressing position being remained on position certain in fact to the direction away from pressing roller.
In addition, invention described in technical scheme 3, in the airtyred manufacture method described in technical scheme 1 or 2, above-mentioned steel bead wire is wound into helical form laterally from tire radial direction inner side, and above-mentioned steel wire spiral rolling step alternately repeatedly performs equal diameter winding steps and increases diameter winding steps, above-mentioned equal diameter winding steps is the step of being carried out with diameter certain in fact by above-mentioned steel bead wire reeling from above-mentioned winding top, above-mentioned increasing diameter winding steps is after above-mentioned equal diameter winding steps, the step before winding top, winding diameter being increased smoothly.
In addition, the invention described in technical scheme 4, in the airtyred manufacture method in technical scheme 1 to 3 described in either a program, above-mentioned steel bead wire is configured to, and steel bead wire adjacent in tire radial direction is reeled by fact seamlessly overlapping.
In addition, the invention described in technical scheme 5, in the airtyred manufacture method described in technical scheme 3, when observing from tyre side face, the steel bead wire reeled in above-mentioned increasing diameter winding steps forms linearity in fact.
In airtyred manufacture method of the present invention, comprise steel bead wire rolling step, on this outer surface with the core that above-mentioned airtyred inner cavity surface can be shaped by outer surface, with ring-type across both sides bead part between the outer surface of the bead part of inner liner pasted of mode and/or the outside of above-mentioned inner liner with ring-type across both sides bead part between the outer surface of the bead part of carcass ply pasted of mode that is steel wire sticking veneer on, the steel bead wire that will cover rubber pastes curl around tire rotation axle.In addition, above-mentioned steel bead wire rolling step comprises: fixation with steel wire operation, utilizes pressing roller the winding top of steel bead wire to be fixed to the above-mentioned steel wire sticking veneer being pasted on core; And steel wire spiral rolling step, by while above-mentioned steel bead wire is sent to core side while make above-mentioned core rotate around tire rotation axle, steel bead wire is pasted on above-mentioned steel wire sticking veneer along tire circumference by the pressing position pressed in above-mentioned pressing roller thus, and makes the tire rotation axle of above-mentioned core tilt to make above-mentioned pressing position to move to the tire radial outside of above-mentioned core continuously or periodically.
In so airtyred manufacture method, due in core engineering method, steel bead wire is directly spirally pasted onto steel wire sticking veneer, so without the need to preparing corresponding fixture etc. separately according to often kind of tire size, in addition do not need its operation.Therefore, it is possible to significantly cut down manufacturing cost.In addition, in the present invention, move the pressing position changing and paste steel bead wire by making core, its result can make the path sending side of steel bead wire remain unchanged, and then can not give unnecessary bending or tension force to steel bead wire.Therefore, in airtyred manufacture method of the present invention, steel bead wire can be pasted on steel wire sticking veneer exactly.
Accompanying drawing explanation
Fig. 1 is the airtyred right-half plane sectional view produced by airtyred manufacture method of the present invention.
Fig. 2 is the stereogram representing the manufacturing installation used in airtyred manufacture method of the present invention.
Fig. 3 is the side view of sticker.
Fig. 4 is the stereogram that the core that the operation of pasting Triangle ID glue is carried out is described.
Fig. 5 is the stereogram of the core of the fixation with steel wire operation that present embodiment is described.
Fig. 6 is the stereogram of the core of the steel wire spiral rolling step that present embodiment is described.
Fig. 7 is the top view of the manufacturing installation of the steel wire spiral rolling step that present embodiment is described.
The side view that Fig. 8 (a) is described for the inner side core produced the steel wire spiral rolling step by present embodiment, (b) is the side view that the inner side core produced the steel wire spiral rolling step by other embodiments is described.
Fig. 9 is the stereogram of the core that carcass adhering processes is described.
Figure 10 is the top view of the steel wire spiral rolling step that other embodiments are described.
Figure 11 (a), (b) are the sectional view of the manufacture method that existing bead core is described.
Figure 12 is the right-half plane sectional view of the green tire obtained by core engineering method.
Drawing reference numeral illustrates: 1... pneumatic tire; 4... bead part; 6A... carcass ply; 9... inner liner; 10... steel bead wire; The winding top of 10e... steel bead wire; 20... pressing roller; I... the inner cavity surface of tire; N... core; N1... the outer surface of core; S... steel wire sticking veneer; T... pressing position.
Detailed description of the invention
Below, based on accompanying drawing, an embodiment of the invention are described.
Fig. 1 represents the sectional view of the pneumatic tire (following, sometimes referred to as " tire ") 1 obtained by the airtyred manufacture method of present embodiment.This tire 1 is passenger car tire, and form the ring-type with pair of bead portion 4, possess: carcass 6, it arrives the bead core 5 of bead part 4 via sidewall 3 from fetus face 2; Belt 7, its be configured in this carcass 6 tire radial outside and in the inside of above-mentioned fetus face 2; And inner liner 9, it is made up of the rubber of the non-breathable excellence of the inner side and tyre cavity face i that are configured in above-mentioned carcass 6.
The tire 1 of Fig. 1 represents that wheel rim is assembled in regular wheel rim (not shown) and fills regular interior pressure and uncharged state, i.e. normal state.
At this, " regular wheel rim ", refers in the schematism of the specification comprising tire institute foundation, the wheel rim of this specification is specified by each tire, such as if JATMA is then standard rim, if TRA is then " DesignRim ", if ETRTO is then " MeasuringRim ".In addition, " regular interior pressure ", refer in the schematism of the specification comprising tire institute foundation, the air pressure of each specification is specified by each tire, if JATMA is then the highest air pressure, if TRA then for table " TIRELOADLIMITSATVARIOUSCOLDINFLATIONPRESSURES " described in maximum, if ETRTO be then " INFLATIONPRESSURE ", but when tire be car use be 180kPa.
Above-mentioned carcass 6 is made up of carcass ply 6A, and this carcass ply 6A has the body cord of the bead core 5 arriving bead part 4 from fetus face 2 through sidewall 3.The body cord be such as made up of organic fiber of above-mentioned carcass ply 6A relative to tire equator C such as with the angular array of 75 ~ 90 °.The carcass ply 6A of present embodiment crosses between the bead part 4,4 of tire axial both sides with ring-type, and the end 6e of its both sides does not turn back at bead core 5 but form terminal in bead core 5.
Above-mentioned belt 7 is at least made up of 2 pieces of belt curtain cloths, is made up of in the present embodiment tire radial inside and outside 2 pieces of belt curtain cloths 7A, 7B.Each belt curtain cloth 7A, 7B have relative to tire equator C with elastomeric belt cords such as the such as steel cords of the angular slope of 15 ~ 40 °.In addition, each belt curtain cloth 7A, 7B are overlapping in the cross one another mode of belt cord.
Above-mentioned bead core 5 has in the present embodiment: the outboard wick 12 in the outside of the inner side core 11 being configured in the inner side of the tire axial of carcass ply 6A and the tire axial being configured in carcass ply 6A.In addition, between inner side, outboard wick 11,12, hold the end 6e of carcass ply 6A.The inner side core 11 of present embodiment and outboard wick 12 reel in a row by a steel bead wire 10,10 along the radial overlap of tire respectively and formed.But inner side core 11 and outboard wick 12 also can be formed as many rows.
In addition, in the present embodiment, in order to prevent the wearing and tearing because causing with the contact of wheel rim (not shown), and configure in the tire radial direction inner side of bead core 5 chafer rubber (chaferRubber) 4g be made up of vulcanie.
In addition, as shown in Figure 1, in bead part 4, inside the tire axial of inner side core 11 and outside the tire axial of outboard wick 12, be provided with and be made up of and inside and outside triangle rubber 8i, 8o of extending with front end tapered to tire radial outside vulcanie.
The pneumatic tire 1 formed as described above is by carrying out manufactured by vulcanization forming the green tire 1a shown in Figure 12.
The manufacturing installation possessing core N, whirligig R and sticker P is used to manufacture shown in above-mentioned green tire 1a such as Fig. 2, wherein, core N has the outer surface of the inner cavity surface i (shown in Fig. 1) of the pneumatic tire 1 that can be shaped, whirligig R makes above-mentioned core N rotate, and above-mentioned steel bead wire 10 is pasted on the outer surface N1 of above-mentioned core N by sticker P.
Above-mentioned core N has the outer surface N1 comprising tyre surface forming face Na, pair of sidewall portion forming face Nb and pair of bead forming face Nc, wherein, tyre surface forming face Na is used for the inner cavity surface of the fetus face 2 of tire 1 to be shaped, pair of sidewall portion forming face Nb is used for the inner cavity surface of sidewall 3 to be shaped, and pair of bead forming face Nc is used for the tyre cavity face of bead part 4 to be shaped.This outer surface N1 and such as regular interior pressure 5% the inner cavity surface of tire of interior pressure condition be similar to.In addition, in the end of the tyre bead side of above-mentioned outer surface N1, be provided with to tire axial pair of flanges face F protruding outside.Such core N is preferably made up of the metal material or heat-resistant resin etc. of heat when can bear sulfuration and pressure.In addition the core N of present embodiment is supported to, and its tire rotation axle is in the state of level (being Y direction in present embodiment).
Above-mentioned whirligig R has: such as rectangular-shaped matrix 16, and it can move along landing ground to horizontal direction (being Y direction in this embodiment); And the scaffold 15 of such as L-shaped, it can be fixed on this matrix 16 around vertical axis revolving.
Above-mentioned matrix 16 has slide mechanism 23a in the present embodiment, and this slide mechanism 23a engages with the guide rail 23b extended along Y direction being laid on ground.In addition, by not shown actuator etc., matrix 16 can move along Y direction.
Above-mentioned scaffold 15 has: horizontal part 15b, and it extends in the horizontal direction, and its end side can be bearing in by axle the 1st vertical axle 18 being located at matrix 16 rotationally; And vertical component effect 15a, its be connected with another side of this horizontal part 15b and vertical (Z-direction) extend.The 2nd axle 17 of level is fixed with in the upper end of vertical component effect 15a.In addition, core N is fixed on the 2nd axle 17 in the mode that can dismantle.
Thus, by making the 2nd axle 17 rotate with not shown motor etc., core N can be made thus to rotate around its tire rotation axle CL.In addition, by making the 1st axle 18 rotate with not shown motor etc., the tire rotation axle CL of core N can be made thus around vertical axis.In the present embodiment, the center line Ca of the 1st axle 18 intersects with the tire rotation axle CL of core N, more specifically through the center O of core N.In addition, the motor etc. carrying out rotary actuation to above-mentioned each axle 17,18 is by computer-controlled.Thus, the anglec of rotation of the tire rotation axle CL of core N or angle of inclination, carry out programme-control according to predefined processing sequence.
As shown in FIG. 2 and 3, above-mentioned sticker P such as possesses: conveying roller 19, and the steel bead wire 10 being wound in spool (omitting diagram) etc. is transported to above-mentioned core N by it; Pressing roller 20, the steel bead wire 10 carried by this conveying roller 19 is pasted on the outer surface N1 of core N by it; And cutting tool 21, it cuts above-mentioned steel bead wire 10.
Above-mentioned steel bead wire 10 is covered by steel wire outer peripheral face half finished rubber by tape sticking device in advance.Thus, the surface of steel bead wire 10 has cementability, can paste securely with the tyre element of core side.
In the present embodiment, rotating shaft is set to level and can be bearing in the fixed head 22 such as with vertical installed surface by axle rotatably by above-mentioned conveying roller 19.Be provided with groove 19e circumferentially at the outer peripheral face of each conveying roller 19, steel bead wire 10 is transferred in the mode passed through in this groove 19e and can not comes off.
In addition, conveying roller 19 possesses: the driven roller 19a being such as connected to motor Ma; Be configured in than the guide reel 19b of this driven roller 19a by upstream side; And be configured at multiple pony roll 19c of periphery of above-mentioned driven roller 19a side by side.
Above-mentioned driven roller 19a is made up of two driven rollers configured side by side along steel wire throughput direction, 25 can be interconnected rotationally by being with.
Above-mentioned guide reel 19b is made up of two guide reels configured side by side along steel wire throughput direction in the present embodiment, and steel bead wire 10 is wrapping with by the downside of the upside of the rotating shaft of upstream side guide reel 19b and the rotating shaft of downstream guide reel 19b.Like this, make it by two guide reels by changing the direction that is wrapping with of steel bead wire 10, thus can remove by the winding vestige of steel bead wire 10 that easily produces during spool keeping or residual stress etc.
In addition, the end portion of the pony roll 19c steel bead wire 10 that can effectively prevent cut instrument 21 from cutting is upspring from driven roller 19a and is produced and departs from.
In addition, pressing roller 20 is such as supported by the actuators such as fluid cylinder 26.This actuator 26 is formed by cylinder barrel 26a with by the bar 26b that fluid pressure can pass in and out freely from cylinder barrel 26a.In addition, above-mentioned pressing roller 20 is bearing in the front end of this bar 26b by axle.In addition, in the present embodiment, utilize conveying roller 19 and pressing roller 20, to make the mode of steel bead wire 10 movement in arbitrary vertical plane, this steel bead wire 10 is carried, guide (shown in Fig. 7).
In addition, the lifting tool 21b such as the above-mentioned cutting tool 21 cutter 21a that such as possesses shear-type and cylinder that this cutter 21a is elevated.By the pressing force of above-mentioned lifting tool 21b, cutter 21a is declined, thus cut off the steel bead wire 10 passed through between driven roller 19a, 19a.
In the airtyred manufacture method of present embodiment, as A-stage, core N is installed in the 2nd axle 17 of whirligig R.In addition, in sticker P, pressing roller 20 is separated with core N.
Then, as shown in Figure 4, be pasted with at the outer surface N1 of core N: the base portion 4ga of chafer rubber 4g and above-mentioned inner liner 9, and paste above-mentioned Triangle ID glue 8i outside the tire axial of the tyre bead forming face Nc of above-mentioned base portion 4ga and inner liner 9.
The base portion 4ga of chafer rubber 4g is such as made up of the shape that cross section is elongated, and is wound into the ring-type of little length laterally from the inner of the tire radial direction of tyre bead forming face Nc.
In addition, unvulcanized and in band shape rubber strip g is such as spirally wound on the outer surface N1 of core N and forms three-dimension curved surface by inner liner 9.Rubber strip g such as width W is preferably about 5 ~ 35mm, and thickness t is preferably about 0.5 ~ 2.0mm.In addition, above-mentioned winding can rotate by making the 2nd axle 17 and the rubber strip g that never illustrated rubber feedway is sent moves along the outer surface N1 of core carry out with the spacing of regulation.In addition, in the present embodiment, the Zone Full of the outer surface N1 of core N is covered with this inner liner 9 and above-mentioned base portion 4ga.
In addition, Triangle ID glue 8i is configured in outside the tire axial of above-mentioned base portion 4ga and inner liner 9.Such Triangle ID glue 8i prevents steel bead wire 10 pairs of inner liners 9 of inner side core 11 from causing damage.
Then, as shown in Figure 5, the tyre bead forming face Nc of core N is made to be arranged at the position of regulation near the pressing roller 20 of sticker P.In the present embodiment, the rotating shaft of the tire rotation axle CL of core N and the conveying roller 19 of sticker P is set to right angle.In addition, in the present embodiment, the rotating shaft Cr (shown in Fig. 3) of the pressing roller 20 and tire rotation axle CL of core N is configured to identical height.Thus, steel bead wire 10 can tangential direction circumferentially be sent in the tyre bead forming face Nc of core N.
Then, the operation forming inner side core 11 is carried out.In this operation, comprise to the bead part 4 of inner liner 9 outer surface (in the present embodiment, the outer surface of the bead part 4 of the Triangle ID glue 8i configured outside the tire axial of inner liner 9) i.e. steel wire sticking veneer S1, by the steel bead wire rolling step that steel bead wire 10 is spirally pasted around tire rotation axle CL.
The feature of above-mentioned steel bead wire rolling step is, comprising: the fixation with steel wire operation (shown in Fig. 5) the winding top 10e of steel bead wire 10 being fixed on above-mentioned steel wire sticking veneer S1; With steel bead wire 10 is pasted on above-mentioned steel wire sticking veneer S1 and the steel wire spiral rolling step that the tire rotation axle of above-mentioned core N is tilted continuously or periodically (Fig. 6, Fig. 7 shown in).
In fixation with steel wire operation, as shown in Figure 5, pressing roller 20 is utilized to be pressed into core N side the winding top 10e of the steel bead wire 10 sent by above-mentioned conveying roller 19, and be fixed on the position (in the present embodiment, the inner 8e of the tire radial direction of this Triangle ID glue 8i) of the regulation of steel wire sticking veneer S1.In this step, because Triangle ID glue 8i is also half finished rubber, so steel bead wire 10 is easily fixed in Triangle ID glue 8i.
At the end of fixation with steel wire operation, carry out steel wire spiral rolling step.In steel wire spiral rolling step, as shown in Figure 6, by making core N rotate around tire rotation axle CL, thus at the pressing position T (shown in Fig. 7) that pressing roller 20 presses, steel bead wire 10 is pasted on above-mentioned steel wire sticking veneer S1 along tire circumference.
In addition, in this operation, in order to make pressing position T move to the tire radial outside of core N, the tire rotation axle CL making core N continuously or periodically (in the present embodiment for periodically) tilt.That is, in the present embodiment, by making the 1st axle 18 rotate, as shown in Figure 7, its tire rotation axle of core N CL rotates clockwise around vertical Z axis.Thus, pressing position T moves to the tire radial outside of core N.In addition, in the figure 7, the position of the core N ' of the A-stage of steel bead wire rolling step represented by dashed line.
In addition, in the present embodiment, while rotating the 1st axle 18, core N is moved horizontally to the direction away from pressing roller 20, thus pressing position T is remained on position certain in fact.Specifically, retreat mobile to the direction away from sticker P by the above-mentioned matrix 16 of whirligig R on the above-mentioned guide rail 23b arranged along Y-axis, pressing position T can be remained necessarily.In such embodiment, move on sticker P without the need to making steel bead wire 10.Therefore, as long as make steel bead wire 10 mobile in single vertical plane, just can make its position stability, its result does not produce unnecessary bending or tension force, distortion etc., so steel bead wire 10 can be pasted on steel wire sticking veneer S1 accurately.In addition, owing to steel wire sticking veneer S1 with certain pressure pressing steel bead wire 10, so the rubber components such as Triangle ID glue 8i can not be damaged, reliably steel bead wire 10 can be pasted on steel wire sticking veneer S1.
In addition, as shown in Fig. 7, Fig. 8 (a), inner side core 11 is steel bead wire 10a, 10b adjacent in tire radial direction in fact seamlessly overlapping windings and being formed.Thus, utilize the bonding force of the half finished rubber of steel bead wire 10a, 10b adjacent in tire radial direction, carry out the reeling condition of stable bead core 5, play the anticreep effect of carcass.In addition, above-mentioned " in fact seamlessly ", refer to that bead core spreads all over tire circumference and the form do not produced between steel bead wire 10a, 10b between gap adjacent in tire radial direction, in addition also comprise the form that can not produce in tire radial direction between the gap exceeding the diameter d of steel bead wire 10 because of the trueness error manufactured.
In addition, above-mentioned steel wire spiral rolling step is preferably and alternately repeatedly carries out equal diameter winding steps and increasing diameter winding steps to above-mentioned steel bead wire 10, wherein, in equal diameter winding steps, reel with diameter certain in fact from above-mentioned winding top 10e, increasing diameter winding steps is after equal diameter winding steps, before winding top 10e, winding diameter is increased smoothly.In the present embodiment, as shown in Fig. 8 (a), inner side core 11 is made up of equal diameter region 11a and increasing diameter region 11b, wherein, equal diameter region 11a is formed by above-mentioned equal diameter winding steps, increases diameter region 11b and is formed by above-mentioned increasing diameter winding steps.
Form the steel bead wire 10k of increasing diameter region 11b by such increasing diameter winding steps winding, form linearity in fact viewed from tyre side face time.In addition, form the steel bead wire 10j of equal diameter region 11a by equal diameter winding steps winding, become arc-shaped viewed from tyre side face time.Inner side core 11 excellent uniformity of such formation.In addition, above-mentioned " linearly in fact ", refer to more than 80% of the tire circumferential lengths LB the increasing diameter region form being formed as straight line, the radius of curvature that in addition can also comprise more than 80% of the tire circumferential lengths increasing diameter region is formed as the form of more than 1.5 times of the radius of curvature in equal diameter region.
In so airtyred manufacture method, steel bead wire 10 spirally can be pasted onto on steel wire sticking veneer S and form bead core 5, and use fixture J unlike the past.Therefore, in airtyred manufacture method of the present invention, significantly manufacturing cost can be cut down.
In addition, the tire rotation axle of core N can tilt continuously.The inner side core 11 produced by such manufacture method, such as, as shown in Fig. 8 (b), steel bead wire 10 is made up of the spiral-shaped increasing diameter region only formed by increasing diameter winding steps.
Then, the carcass adhering processes pasting above-mentioned carcass ply 6A in the outside of the tire axial of inner side core 11 is implemented.In this operation, such as, as shown in Figure 9, by the cord sheet 6c by multiple short strip shapes longer than the length of tire circumference for the length of tire radial direction, to connect along tire circumference outside the tire axial of inner side core 11, thus form the carcass ply 6A of 3D shape accurately.The cord sheet 6c of present embodiment pastes successively near the inner 11e of the tire radial direction of above-mentioned inner side core 11.In addition, the inner end 6i of the tire radial direction of above-mentioned adjacent cord sheet 6c is configured to mutual docking.Such carcass adhering processes such as makes core N rotate around tire rotation axle CL to paste above-mentioned cord sheet 6c.
Then, tire complete cycle is implemented cord sheet 6c to be pasted on to form the operation of outboard wick 12 after forming carcass 6.In the present embodiment, form the operation of outboard wick 12, be included in the outer surface of the bead part 4 of carcass ply 6A, i.e. steel wire sticking veneer S2, as forming the operation of inner side core 11, steel bead wire 10 pasted the steel bead wire rolling step of curl around tire rotation axle.In addition, this steel bead wire rolling step comprises above-mentioned fixation with steel wire operation and above-mentioned steel wire spiral rolling step.
Then, after the operation forming outboard wick 12, as shown in figure 12, stickup is connected with the base portion 4ga of outer triangle rubber 80, chafer rubber 4g and forms the secondary portion 4gb, belt 7, sidewall rubber 3G, tread rubber 2G etc. of tyre bead lateral surface respectively.Form green tire 1a at the outer surface N1 of core N like this.
As other embodiments, as shown in Figure 10, in above-mentioned whirligig R, fixing base 16, makes above-mentioned sticker P move horizontally to the direction away from core N, thus above-mentioned pressing position T can be remained on position certain in fact.In this embodiment, because sticker P moves along the vertical plane of conveying steel bead wire 10, thus bending can not act on this steel bead wire 10 on be preferred.Above, the preferred embodiment of the present invention is described in detail, but has the invention is not restricted to illustrated embodiment, also can be deformed into various mode to implement.
Claims (5)
1. an airtyred manufacture method, is manufacture the airtyred method with the ring-type in pair of bead portion, it is characterized in that,
Comprise steel bead wire rolling step, on this outer surface of core with the outer surface that above-mentioned airtyred inner cavity surface can be shaped, with ring-type across both sides bead part between the outer surface of the bead part of inner liner pasted of mode and/or the outside of above-mentioned inner liner with ring-type across both sides bead part between the outer surface of the bead part of carcass ply pasted of mode that is steel wire sticking veneer on, the steel bead wire covered by rubber is spirally pasted around tire rotation axle
Above-mentioned steel bead wire rolling step comprises:
Fixation with steel wire operation, utilizes pressing roller the winding top of steel bead wire to be fixed to the above-mentioned steel wire sticking veneer being pasted on core; And
Steel wire spiral rolling step, by while above-mentioned steel bead wire is sent to core side while make above-mentioned core rotate around tire rotation axle, at the pressing position pressed by above-mentioned pressing roller, steel bead wire is pasted on above-mentioned steel wire sticking veneer along tire circumference thus, and makes the tire rotation axle of above-mentioned core tilt to make above-mentioned pressing position to move to the tire radial outside of above-mentioned core continuously or periodically.
2. airtyred manufacture method according to claim 1, is characterized in that,
Comprise by making above-mentioned core move the operation thus above-mentioned pressing position being remained on position certain in fact to the direction away from pressing roller.
3. airtyred manufacture method according to claim 1 and 2, is characterized in that,
Above-mentioned steel bead wire is wound into helical form laterally from tire radial direction inner side, and
Above-mentioned steel wire spiral rolling step alternately repeatedly performs equal diameter winding steps and increases diameter winding steps,
Above-mentioned equal diameter winding steps is the step of being carried out with diameter certain in fact by above-mentioned steel bead wire reeling from above-mentioned winding top,
Above-mentioned increasing diameter winding steps is after above-mentioned equal diameter winding steps, the step before winding top, winding diameter being increased smoothly.
4. airtyred manufacture method according to claim 1 and 2, is characterized in that,
Above-mentioned steel bead wire is configured to, and steel bead wire adjacent in tire radial direction is reeled by fact seamlessly overlapping.
5. airtyred manufacture method according to claim 3, is characterized in that,
When observing from tyre side face, the steel bead wire reeled in above-mentioned increasing diameter winding steps forms linearity in fact.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-016999 | 2011-01-28 | ||
| JP2011016999A JP5200124B2 (en) | 2011-01-28 | 2011-01-28 | Pneumatic tire manufacturing method |
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| CN102615843A CN102615843A (en) | 2012-08-01 |
| CN102615843B true CN102615843B (en) | 2015-11-25 |
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| CN (1) | CN102615843B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014069563A (en) * | 2012-10-02 | 2014-04-21 | Sumitomo Rubber Ind Ltd | Method and line for tire production |
| CN107498903B (en) * | 2017-09-18 | 2023-08-01 | 宁夏神州轮胎有限公司 | Tyre inner liner hot film sticking device |
| JP2024084598A (en) * | 2022-12-13 | 2024-06-25 | 株式会社ブリヂストン | Tire manufacturing method and tire manufacturing apparatus |
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| US5336358A (en) * | 1991-08-22 | 1994-08-09 | The Yokohama Rubber Co., Ltd. | Apparatus for manufacturing bead assemblies for tires |
| JP2004098826A (en) * | 2002-09-09 | 2004-04-02 | Bridgestone Corp | Pneumatic radial tire and its manufacturing method |
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| CN101137519A (en) * | 2005-03-07 | 2008-03-05 | 米其林技术公司 | Tyre bead structure |
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| JPS63214434A (en) * | 1987-03-03 | 1988-09-07 | Bridgestone Corp | Manufacture of bead core for tire |
| JP2003071946A (en) * | 2001-09-06 | 2003-03-12 | Bridgestone Corp | Tire for two-wheeled vehicle and its manufacturing method |
| JP4056290B2 (en) * | 2002-04-30 | 2008-03-05 | 株式会社ブリヂストン | Pneumatic tire manufacturing method and apparatus |
| FR2879500A1 (en) * | 2004-12-22 | 2006-06-23 | Michelin Soc Tech | METHOD AND DEVICE FOR THE MANUFACTURE AND INSTALLATION OF A CIRCONFERENTIAL REINFORCEMENT FOR A PNEUMATIC AND TIRE OBTAINED BY SAID METHOD |
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- 2011-01-28 JP JP2011016999A patent/JP5200124B2/en active Active
- 2011-10-19 CN CN201110326743.4A patent/CN102615843B/en not_active Expired - Fee Related
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| US5336358A (en) * | 1991-08-22 | 1994-08-09 | The Yokohama Rubber Co., Ltd. | Apparatus for manufacturing bead assemblies for tires |
| CN1307042C (en) * | 1998-12-17 | 2007-03-28 | 倍耐力轮胎公司 | Method and apparatus for manufacturing components of tyre for vehicle wheels |
| JP2004098826A (en) * | 2002-09-09 | 2004-04-02 | Bridgestone Corp | Pneumatic radial tire and its manufacturing method |
| JP2006159450A (en) * | 2004-12-02 | 2006-06-22 | Mitsubishi Heavy Ind Ltd | Green tire manufacturing apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN102615843A (en) | 2012-08-01 |
| JP2012157976A (en) | 2012-08-23 |
| JP5200124B2 (en) | 2013-05-15 |
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