CN1248939A - Vulcanized innerliner and method of utilizing the same for pneumatic tyres - Google Patents
Vulcanized innerliner and method of utilizing the same for pneumatic tyres Download PDFInfo
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- CN1248939A CN1248939A CN 97182071 CN97182071A CN1248939A CN 1248939 A CN1248939 A CN 1248939A CN 97182071 CN97182071 CN 97182071 CN 97182071 A CN97182071 A CN 97182071A CN 1248939 A CN1248939 A CN 1248939A
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Abstract
The present invention relates to the manufacture of an original or tetreaded tire with a vulcanized, splice-free, innerliner and a method of constructing the innerliner as an intermediate article of manufacture. The splice-free, vulcanized innerliner has a cylindrical or toroidal shape and is formed from different molding techniques.
Description
Technical field
The present invention relates to pneumatic tyre and make method original and pneumatic tyre renovation, the present invention is specifically related to vulcanize inner liner and uses this sulfuration inner liner when making new tire and retreads.
Background of invention
When retreads, begin to process tire, grind off existing tyre surface of not wanting and sidewall material, until remaining carcass.Investigating then, is to be suitable for renovation to determine it, still damages too severe and can not renovate.A general problem relevant with retreads is that the part of splicing of inner liner is split, and makes the air that charges into enter carcass by the crack, thereby makes the carcass separation or form bubble in the tire layer of wire gauze.The carcass that inner liner damages is generally abandoned, even tire body is very costly originally.
In order better to understand renovation technology, below briefly explain Tyre structure.Usually adopt a kind of tire autofrettage to make tubeless pneumatic tyre, in the method, the various parts of tire or layer of wire gauze are made on the rotating cylinder as the tire that flat material is attached to rotation, form the rubber tire or the untreated tire of hollow annular thus.When making the rubber tire, at first make on the rotating cylinder at tire inner liner is topped, and then wrap and contain tire reinforcement provided matrix line stratum reticulare.Put tyre bead, tire top (apexes) behind the matrix line stratum reticulare, chafer, sidewall, belt (belts) and tread.Make the rubber tire assembly that rotating cylinder takes off annular from tire then, place it in shaping and the vulcanizing mold, this mould has the shape of last tire.Then heat the rubber tire assembly of annular, and gas-pressurized or fluid are injected the processing air bag that is arranged in rubber tire assembly that is contained in the mould, make this rubber tire assembly through outwards expansion, the circle face of contact mould.When handling air bag and expand, it just forces the tyre surface of rubber tire assembly to contact the die wall that has heated with sidewall, thus shaping rubber tire and make this tire be sulfided into the tire of complete cure.Between the phase of expansion, the layer of wire gauze of annular just radially outward expand into than the big slightly size of original rubber tire assembly rubber tire assembly in shaping and vulcanizing mold.Therefore, air bag is made of expandable elastomeric material usually, makes of butyl rubber usually, with anti-steam.
As mentioned above, when the retreads body, process tire to be renovated, at first grind off existing tyre surface of not wanting and sidewall, until remaining carcass.Stick living bed course raw rubber subsequently.Then tyre surface rubber or that handled is added on the carcass.Repair other any damage of carcass and lining then.The crackle that the badly damaged lining for example takes place at the place of splicing can not be repaired, and must abandon carcass.The tyre assembly that will renovate comprises that carcass, rubber bed course and tyre surface are placed in the vulcanizing chamber then.
During producing new tire on the assembly line; processing air bag in shaping and vulcanizing mold is wearing and tearing or inefficacy periodically; therefore need very long downtime, reinstall new processing air bag, then mould is put into operation again with very expensive material and the labour costs that costs a lot of money.
Tire industry has managed to remove the essential processing air bag of using when producing new tire.For example, U.S. Patent No. 3 143 449 discloses the unvulcanized tubular inner liner that a kind of nothing is spliced, and is used for fully sealing the rubber tire, to prevent that pressure fluid from carrying out flowing in the carcass during the vulcanisation operation in vulcanized model for tyre.This patent does not have to illustrate or the inner liner of the prevulcanization that a kind of nothing of proposition application is spliced is made new tire or retreads.But, on tubular tire liner, remove the place of splicing, charging into fluid and just can not just flow in the rubber tire body of molded and sulfuration in vulcanized model for tyre through the place of splicing in no air bag mould can be eliminated bubble and the reason of separating in the goods tire thus thus.In addition, it seems now, although can preventing to inject the fluid that charges into of the mould of shape shape carcass, the unvulcanized tubular inner liner of being spliced by the nothing of annular overflows, but still be in the rubber state at inner liner, and tire is when just being molded into the shape of requirement in the mould of no air bag, it can not prevent to charge into usually the seepage of steam under pressure, gas or the water of air bag effectively, can not prevent them to flow through inner liner, flows in the carcass.
The method that also has a kind of retreads of U.S. Patent No. 4 166 883 (1883) these patent disclosures related to the present invention, this method adopts room temperature air, and the mould of the extruding tyre surface of inflatable processing air bag that need not be common and heating.This 1833 patent also discloses inner liner a kind of partial vulcanization or complete cure, and the two ends of this inner liner are connected by the part of splicing that tilts.Or the unvulcanized locking bar of doing with the sizing material of partial vulcanization with the usefulness of crossing over both ends is fixed when being bonded together, and is the same with the standard practice of making tire.Comprise surface injection steam or hot water that partial vulcanization or complete cure inner liner also allow directly the interior annular surface facing to the rubber tire promptly to be formed by inner liner, molded and the shaping rubber tire with the method, make the rubber tire expand and enter die wall and moulding of tyres, handle then or vulcanize this tire.The make base problem of method of this kind is, it is higher that splice part and remaining tire of not splicing of last its inner liner of vulcanized tyre partly compared the possibility that manufacturing defect takes place.The lining layer part of splicing constitutes the weak part of tire inner surface, compares with all the other inner surfaces of inner liner, breaks and to form the possibility of passage bigger, and the air that charges into may and/or expand the crack in the matrix line stratum reticulare through this passage outflow tire.
Clearly, still needing provides a kind of novel method and structure, so that produce high-quality retreads and new tire.In addition, still need to eliminate the root that produces the wheel tyre defect, promptly eliminate inner liner the breaking of part of splicing.
The purpose and the general introduction of invention
The rubber liner layer that the purpose of this invention is to provide a kind of pneumatic tyre, this inner liner is by one of appended claims or multinomially determine, can be become reach one or more following auxiliary purposes by structure.
The rubber liner layer and a kind of method of making this inner liner that the objective of the invention is the partial vulcanization at least that a kind of nothing of confession under directions splices, this inner liner are made to making intermediate, are used to renovate tubeless tire.
A further object of the present invention provides a kind of pneumatic tire of tubeless renovation, and this pneumatic tyre is equipped with does not have the rubber liner layer of splicing, the partial vulcanization at least before assembling with other member of renovation pneumatic tyre of this rubber liner layer.
The rubber liner layer that a further object of the present invention provides the partial vulcanization at least that a kind of nothing splices can utilize any method in some mechanographies to make this inner liner.
A further object of the present invention provides the rubber liner layer that a kind of nothing is spliced, and this inner liner is before being assembled on the new pneumatic tyre assembly or partially or fully cure.
A further object of the present invention provides the columnar or annular rubber liner layer of the partial vulcanization at least that a kind of nothing splices, and this inner liner is assembled on the new pneumatic tyre assembly.
A further object of the present invention provides the rubber liner layer that a kind of nothing is spliced, this lining layer part ground or sulfuration fully, and can be contained on the tyre assembly that has before vulcanized.
The purpose of this invention is to provide rubber liner layer and a kind of method of making this rubber liner layer that a kind of nothing is spliced, this rubber liner layer is used on the tire as the intermediate of making, wherein, not having the inner liner of splicing is partial vulcanization at least, and non-leakage gas-pressurized or fluid, thereby can remove the processing air bag that is placed in shaping and the vulcanizing mold.
A further object of the present invention provides a kind of tyre assembly of renovation, and the inner liner that this tyre assembly is spliced by the nothing of carcass, rubber bed course, tyre surface rubber or sulfuration and sulfuration constitutes, and wherein inner liner can be aimed at carcass and be fixed on this carcass.
According to embodiments of the invention, do not have the rubber liner layer of splicing and be roughly cast, constitute by rubber parts sulfuration or partial vulcanization, this inner liner is arranged in the retreads.Inner liner is made cylindrical shape, annular or some shape therebetween.Inner liner sulfuration or partial vulcanization that nothing of the present invention is spliced is assembled in the carcass, adds living cushion rubber then on carcass, then adds tyre surface rubber or sulfuration.Whole assembly preferably is placed in the vulcanizing chamber, at authorized pressure and require to keep a period of time under the temperature, until the retreads complete cure.
In addition, according to the present invention, the cylindrical shape inner liner preferably has the profile of given shape, and wherein the middle body thickness of the wall ratio inner liner of the opposed end of inner liner is little.In the process of making tire, columnar inner liner is stretched as the annular of wall thickness substantial constant.
In another embodiment of the present invention, do not have the inner liner of splicing sulfuration or partial vulcanization or be cylindrical shape, perhaps be annular, at first this inner liner be contained on the rotating cylinder of making base, then refill and form necessary all the other tyre assemblies of complete not vulcanizing tyre assembly.In another embodiment of the present invention, at first on the rotating cylinder of making base, set up the unvulcanized inner liner tyre assembly of not being with, and then the sulfuration that nothing of the present invention is spliced or the inner liner of partial vulcanization are encased in the other not vulcanizing tyre assembly of finishing.In another embodiment of the present invention, the sulfuration that nothing is spliced or the shape of partial vulcanization are that the inner liner of cylindrical shape or annular is contained in the sulfurizing mould with a kind of mechanism, and this mechanism is similar to and makes the clamp ring of handling the air bag fix in position.With set up in the usual way but do not have the not vulcanized tyre of inner liner to be placed in the sulfide film tool and sulfuration in a usual manner, but inner liner plays a part vulcanisation bladder.Can cut off the unnecessary material that uses the lining fix in position after the sulfuration.In an embodiment more of the present invention, the sulfuration that nothing is spliced or the inner liner of partial vulcanization are placed in the completed not vulcanizing tyre assembly with inner liner.In each said structure, if desired, whole tyre assembly can be placed on and form in the sulfurizing mould and vulcanize.
On the other hand, according to the present invention, disclose the not method of vulcanizing tyre assembly of a kind of manufacturing, this tyre assembly has the inner liner parts spliced of the nothing of partial vulcanization at least.This unvulcanized tyre assembly is placed in the shaping and sulfurizing mould of no air bag.In the no air bag mould that the gas or the liquid of pressurization is incorporated into tire and sulfuration,, can make tire press mold wall thus directly facing to inner liner, thus moulding of tyres and make tyre vulcanization.
According to the present invention, not having the inner liner of splicing can be drum or annular shape with many different process formings, and these technologies comprise extrusion die method for making, injection molding process, transfer moulding method and compression molded method, but are not limited to these methods.In the technology of shaping inner liner, after forming inner liner, this inner liner often will vulcanize at least in part.
Brief description of drawings
Fig. 1 is local mode cross section perspective view, illustrates the tire that the present invention does not have the inner liner of the partial vulcanization at least of splicing is housed;
Fig. 2 is local perspective cross-sectional view, and the retreads assembly that tyre surface inner liner, carcass, rubber bed course and rubber or sulfuration that does not have the partial vulcanization at least of splicing is housed is shown;
Fig. 2 A is an exploded view, and the rib of inner liner is shown, and this rib is fixed in the groove on the carcass;
Fig. 3 is a perspective view, and the inner liner of the partial vulcanization at least that the nothing of annular of the present invention splices is shown;
Fig. 3 A is along the cross-sectional view of the 3A-3A line intercepting of Fig. 3, and the amplifier section that the present invention does not have the ring lining layer of the partial vulcanization at least of splicing is shown;
Fig. 3 B is the side view along the intercepting of 3 3B-3B line;
Fig. 4 is a perspective view, and the inner liner of the partial vulcanization at least that columnar nothing of the present invention splices is shown;
Fig. 4 A is along the cross-sectional view of the 4A-4A line intercepting of Fig. 4, and the cylindrical shape inner liner that the present invention does not have the partial vulcanization at least of splicing is shown;
Fig. 5 is a schematic diagram, and example illustrates the extrusion system of the inner liner that is used for making partial vulcanization at least of the present invention;
Fig. 6 is the cross-sectional view along the line 6-6 intercepting of Fig. 5,
Fig. 7 is that part be the side view of sectional view, is illustrated in to add other parts and inner liner is expanded to and be contained in the cylindrical shape inner liner that turns the partial vulcanization at least that the nothing on the rotating cylinder of making base splices before the annular shape;
Fig. 8 is the cross-sectional view that local side-looking disconnects, and illustrates the whole tyre assembly that the present invention does not have the inner liner of the partial vulcanization at least of splicing is housed, and this assembly is positioned at the molded and tire curing device of no air bag;
Fig. 9 is a plane, and new unvulcanized tyre assembly of the present invention is shown.
Definition
Retreads are the sulfuration carcasses with new tyre surface.
Cured tire is the tire of complete cure.
The rubber tire is the unvulcanized tire that assembles fully, and most of assemblies do not vulcanize.
Processing is vulcanizing treatment.
The inner liner of section processes is vulcanized to steam, the gas that makes at least the non-leakage pressurization of inner liner Body or hot liquid.
Detailed description of the invention
For better understanding the present invention, Fig. 1 illustrates the part of typical tire 10 of the present invention with cross-sectional form.Tire 10 can be assembled into renovation tire assembly 12 as shown in Figure 2, and method is to add rubber bed course 14 on carcass 16, and then adds tyre surface 18 rubber or that handle.The inner liner 20 of the cardinal principle annular of the partial vulcanization at least of annular is contained in the carcass 16 substantially.To renovate the tire component port then and put in the unshowned conventional vulcanizing chamber, and remain on Temperature Treatment a period of time of requirement, cure, form last form shown in Figure 1 until tire 10.
Shown in Fig. 3,3A and 3B, inner liner 20 of the present invention is formed its shape of not having the partial vulcanization at least of splicing and for example is the inner liner of round, and annular wall 36 has hollow annular inner surface 38.When adopting annular substantially design, the wall thickness of inner liner 20 " t " is uniformly basically, because this inner liner is sulfided at least in part near its final form.Inner liner 20 usually with vulcanizable rubbery material for example halogenated butyl rubber (haloybutyrubber) make, can with many diverse ways for example the extrusion die method for making, inject modulus method, transfer moulding method or compression moulding legal system and make inner liner 20.
Shown in Fig. 4 and 4A, inner liner of the present invention can also be made to become its shape of not having the partial vulcanization at least of splicing and for example be the inner liner 40 of round, and cylindrical wall 42 has hollow drum type inner surface 44.When adopting the general cylindrical shape design, " X " is thicker for the wall thickness of the middle body of inner liner 40, make inner liner be stretched and vulcanize at least to its near its final form after its thickness be uniform basically.Inner liner 40 is common with for example halogenated butyl rubber (haloybutyl rubber) making of vulcanizable rubbery material, and can adopt many distinct methods following extrusion molded manufactured inner liner 40 that will illustrate for example shown in Figure 5.
With reference to figure 5, the example of the seamless cylindrical shape inner liner 40 that vulcanizes with illustrative method manufacturing when using extrusion system 50 shown in the figure.Rubber or flexible inner liner raw material are sent into the conveying box of extruder 54.The extrusion screw rod (not shown) drives rubber by extruding cylinder 56, and makes rubber plastification and this rubber of heating, thus head 57 in formation pressure.This pressure forces rubber to flow through the die cavity between axle 60 and template 62 at head 57 1 ends, shown in Fig. 6 and 6A, thereby forms the wall 70 of continuous cylindrical shape rubber tube 72.As illustrated in Figures 5 and 6, axle 60 is passed the die cavity of template 62, and this template configuration is in an end of head 57, and this head 57 is contained on the extruder 54 in a usual manner.Axle 60 can move back and forth under the control of the computer of operation control system (not shown), and shown in arrow among Fig. 6 64, this causes die cavity 58 to broaden and narrows down, thereby correspondingly distinguishes thickening and attenuation through the runner of die cavity, changes with sinusoidal period usually.The result forms the continuous rubber pipe 72 with given shape section, as shown in Figure 5.The motion of template 62 is shifted to and moved apart to pipe 72 wall 70 response axles 60 and alternately thickening and attenuation.Require wall 70 to have than thickness portion, make that the wall of inner liner 40 has homogeneous thickness substantially after inner liner being stretched to its last annular shape, this will illustrate below.When extruding continuous pipe 72, the continuous furnace 80 that this pipe schematically illustrates by Fig. 5, this heating furnace be partial vulcanization pipe 72 continuously at least.This pipe 72 moves on on the annular inner support 82 then, periodically cut off this pipe at this place with cutter 84, the inner liner of splicing with the columnar nothing of the round that is formed up to small part sulfuration 40, in this fabrication stage, inner liner 40 has the section of given shape, and wall 70 is at the thickness of opposite end part 86 and 88 thickness less than the middle body 90 of wall 70.Utilization keeps constant with respect to template 62 for fixing axle 60 can make die cavity 58, and the cylindrical tube 40 of Xing Chenging has more constant wall thickness thus, and this also within the scope of the invention.
According to the present invention, inner liner can be molded as a kind of shape, for example is the annular ring that partially or completely vulcanizes, shown in Fig. 3,3A and 3B, fixed cun of this inner liner preferably is decided to be or can be placed in the carcass to be renovated, perhaps can embed in the new ring shaped tyre.For the cylinder inner liner 40 that nothing is spliced forms the ring lining layer that does not splice, cylindrical shape inner liner 40 is contained on the rotating cylinder 92 of making base, as shown in Figure 7, clamp end parts 86 and 86 with the conventional equipment (not shown).Between rotating cylinder 92 and inner liner, inject forced air subsequently, the middle body 90 of inner liner 40 is expanded, so that inner liner is configured as the annular shape shown in Fig. 3 and 3B substantially.Therefore, be used to form the other unnecessary rubber of cylindrical shape inner liner thick wall part, promptly the cylindrical shape inner liner is stretched to the inner liner of its last annular shape and the unnecessary rubber of usefulness is not present on the last ring lining layer basically in order to adapt to, the thickness of its wall is essentially constant.Therefore the seamless nothing of partial vulcanization at least of the present invention its shape of inner liner of splicing can be in the form range between the annular shape of the drum of inner liner 40 and inner liner 20.
In the example of the inner liner with hollow annular surface 38 20 shown in Fig. 3,3A and 3B, the wall thickness (t) that is essentially constant is the function of normal load the blowing pressure that wherein adds the tire 10 of inner liner, and promptly thickness " t " requires the increase of pressure along with tire and increases.When the ring lining layer 20 of rubber was applied to have following recommendation the blowing pressure, this inner liner had with lower wall thickness:
When the blowing pressure less than about 30 pounds/inch
2The time, " t " is less than the thickness of about 2.0mm;
When the blowing pressure less than about 60 pounds/inch
2The time, " t " is less than about 3.0mm;
And work as the blowing pressure less than about 100 pounds/inch
2The time, " t " is less than about 4.0mm.
Be not illustrated as that to join in the structure of retreads at it be novel although there is the liner lining 20 or 40 of the partial vulcanization at least splice, use inner liner 20 or 40 also within the scope of the invention in the structure of new tire.With reference to figure 8, among the figure illustrative structure of finishing tire 10 as shown in Figure 1.The new tyre assembly 100 of annular comprises carcass 16 ' as shown in Figure 9 substantially, along the tread portion 102 of carcass configuration and the inner liner 20 ' of partial vulcanization at least, this tyre assembly is contained on the rotating cylinder of making base in mode known in this technology.The number that adds left-falling stroke in whole explanation is represented a kind of structure member, and this structure member is identical basically with the structure member that the identical number that does not add left-falling stroke is represented.
On the rotating cylinder 92 of making base, make in the illustrative of tyre assembly 100, as shown in Figure 7, with this at least the cylinder inner liner 40 of partial vulcanization coaxially be positioned between two parties on the surface of rotating cylinder 92.Then matrix line stratum reticulare (not shown) configuration is on the rotating cylinder 92 inner liner 40 above, this layer of wire gauze itself is cut off and sewed up, and is the same with configuration mode commonly used in the technology of making base.If desired, other matrix line stratum reticulare be can also add, tire bead, tire (apexes), chafer, sidewall, belt (belts) and tread line stratum reticulare (all not shown) added subsequently.Main carcass material, except that inner liner and, form by the untreated rubber of giving birth to, and can be stitched together with the method and apparatus of any routine.Understand the present invention for clearer, common matrix line stratum reticulare, tyre bead, tire top (apexes), chafer, sidewall, belt (belts) and tyre surface carcass reinforcement are all not shown.
Stop the rotation of rotating cylinder 92, with tyre bead 128 and 130 be positioned at cylindrical shape inner liner 40 end parts 86 and 88 above, lay respectively at the radial outside of the groove on tyre bead mount pad 152 and 154, the standard practice when making base rotating cylinder is the same with using.Make rotating cylinder 92 expansion (not shown) then, make tyre bead 128,130 be properly oriented.Utilize conventional equipment known in this technology that the end of carcass material is turned up then, place on the tyre bead.After turning up step, can with other carcass parts for example the sidewall bar be configured on the rotating cylinder, can sew up in place if desired.Shrink rotating cylinder then, bead is driven toward each other, and, the tire assembly is reshaped from cylindrical shape be annular shape to the inflation of tire assembly.Rotating cylinder 92 is collapsed, take off the annular rubber tire assembly of finishing 100, so that in handling press or mould 104, form and vulcanize, form finished tire 10, this mould is shown in the cross-sectional view of Fig. 8, be used for molded and processing tire sets assembly 100, make it form the new tyre tire (10) for example shown in Figure 1 of sulfuration.
An importance of the present invention is that mould 104 shown in Figure 8 does not need to use the processing air bag and forms tire 10.Mould 10 can any routine mode make, do not constitute a part of the present invention.The mould that illustrates has second mould part 108 of first mould part 106 and coupling.Tyre assembly 100 comprises carcass 16 ', is configured in tread portion 102 and the aliging with carcass 16 ' and be fixed on inner liner 20 in this carcass of partial vulcanization at least along carcass, this tyre assembly is placed in the die cavity 110, makes the bead part 22 ' and 24 ' of carcass 16 ' be pressed against respectively on mould ring 112 and 114.Then round rubber seal 116 and 118 is embedded in the opening between mould ring 112 and 114, sealing part 116 and 118 is fixed on the port of export of treatment media inlet part 120 dividually. Seal 116 and 118 outward surface 122 and 124 are pressed in respectively on the lining layer part 20 ' near tyre bead 128 and 1 30, thereby this treatment media can not drain to zone between seal and the inner liner when treatment media begins to enter mould 104. Seal 116 and 118 is separately fixed at an end of support unit 132 and 134, the end that separates 136 and 138 of this support unit is connected to each other by parts 140 again, although illustrate with elastomeric material and make seal 116 and 118, also within the scope of the invention with sealing system metal or machinery.If desired, utilize the mechanical connection on the parts 140 that the end 136,138 of support unit 132 and 134 is moved with respect to one of them respectively.As previously mentioned, constitute the inner liner 20 ' sulfuration at least in part of tyre assembly 100 inner surfaces, the gas, steam or the hot water that make its impermeable pressurization.Gas, steam or the hot water of pressurization is introduced mould 104 through the center of inlet part 120, can form fully big pressure at tyre assembly 100, thereby force assembly to be pressed onto on the die wall, and force inner liner to be pressed on the carcass 16 ', thereby on tread portion 102, form tread contour, and form the distinguishing mark of requirement and the stamp of requirement at tire table cloth.Vulcanizing treatment tire assembly 100 then, and take off from mould 104, the new tyre of finishing 10 as shown in Figure 1 obtained.
According to another embodiment of the present invention, can at first inner liner be molded as for example partially or completely annular ring 20 of sulfuration shown in Fig. 3 and 3B of a kind of shape, this circle is dimensioned to the inner surface that mates rubber tyre assembly (not shown) basically, this rubber tyre assembly is similar to tyre assembly shown in Figure 9 100, but does not have inner liner.Its wall because not needing to expand, ring lining layer 20 is not contained in the rubber tyre assembly, so can be uniform standard size.The inner liner 20 of the partial vulcanization of annular can be contained in and make base rotating cylinder for example on the rotating cylinder 92, hold end parts 35a and 35b.Then the end parts 35a and the 35b of mobile in opposite direction inner liner 20 pull into the shape of another kind of columnar or bell shape with inner liner, form the pleat folding this moment on the surface of inner liner.To not have then the unvulcanized tyre assembly of inner liner be contained in elongation inner liner 20 above.Turn up device with any known routine of technical staff in this then the end parts 35a and the 35b of inner liner 20 turned up, place tyre bead 128,130 above, then, drag and lump together, meanwhile, to the inner liner inflation, thereby internal layer is contained in the rubber tire assembly of annular.The rotating cylinder 92 of making base of collapsing at last takes off tyre assembly, so that form in sulfuration moulding press or mould 104 and vulcanize, shown in the cross-sectional view of Fig. 8.
In another embodiment, inner liner 20 as shown in Figure 3A has elongate slot 160 or rib (not shown), this notch is extending on surface 162 outwardly between end parts 35a and the 35b, this surface upwards is pressed against on the carcass, allow air between inner liner 20 ' and carcass, to overflow thereby be embossed in a time-out, as shown in Figure 8 at them.Although what illustrate is elongated slot 160, they are optional, only can comprise groove in the application of selecting.It should be noted that after tire completes as shown in Figure 1, notch will be filled up by the rubber of knitting layer, thereby the sealing notch prevents that air from entering the space between inner liner and the carcass.Form the rib (not shown) on the outward surface 162 of inner liner 20, catch the space of air so that form to overflow between inner liner and carcass, this also is within the scope of the invention.In another embodiment, can on the outward surface of inner liner shown in Figure 4 40, form similar groove (not shown), so that reach to inner liner 20 described same purposes.
Although being made to, the inner liner 40 of the partial vulcanization that the nothing shown in Fig. 4 is spliced has the columnar shape of round substantially, and have the wall thickness section be the thickness of core of inner liner greater than the thickness of opposite end part 86 and 88, but the Any shape that inner liner is made between the inner liner 20 of columnar inner liner 40 of the round that has shown in Fig. 4,4A and 5 and the annular of the round shown in Fig. 3 and 3B ring-type also is within the scope of the invention.After the inner liner spliced of the nothing of partial vulcanization was molded into tire 10 at least with this, this cylindrical shape inner liner 40 will reshape to being entirely identical to the annular shape of inner liner 20 at last.Because the inner liner of any selected tire ends at same shape basically, thus will vulcanize inner liner require shape be chosen between cylindrical shape circle and the annular ring Any shape all within the scope of the invention.
According to another embodiment of the present invention, inner liner can at first be molded into annular shape 20 or drum 40, as shown in Figure 3 and Figure 4, and is partially or even wholly vulcanized.This inner liner is contained in a kind ofly has in the sulfurizing mould that makes mechanism's (not shown) of handling the air bag fix in position.This inner liner has the material (not shown) for example from its thin slice material that stretches out, so that inner liner is fixed in this mechanism.With routine make but the rubber tire that do not contain inner liner be placed on and carry out routine sulfuration in the sulfurizing mould 104, and inner liner plays a part the processing air bag.When from sulfurizing mould, taking out the tire of finishing, can cut off the unnecessary thin slice material that is used for the inner liner fix in position if desired.
According to another embodiment of the present invention, inner liner 20 can at first be molded into a kind of shape, for example the partially or completely annular ring of sulfuration shown in Fig. 3 and 3B.As mentioned above, if desired, can form elongated notch 160 or rib (not shown) at inner liner 20.Then the inner liner 20 that is shaped is inserted in the tire body and tread package that has vulcanized, this assembly can carry out molded in conventional mould and sulfuration with air bag.The inner liner of near then small part sulfuration, for example is embedded into rib 32a and 32b respectively among groove 34a, the 34b on the carcass and tread package of sulfuration with mechanical method fixation, as illustrated in Fig. 2 and the 2A and explanation.Utilize other to install adhesive for example or be clipped in carcass and inner liner between unvulcanized rubber layer inner liner is fixed on the carcass also within the scope of the invention.The mould of then assembly of tire and inner liner being put into no air bag is mould 104 for example, carries out last molded and sulfuration, with the formation finished tire.
Clearly, the present invention provides rubber liner layer that nothing a kind of sulfuration or partial vulcanization splices and the method for making this rubber liner layer as intermediate, the inner liner that this nothing is spliced partial vulcanization at least, thereby used gas-pressurized in the non-leakage various mechanography, water or steam, this inner liner has reached above-mentioned purpose, device and advantage.According to the present invention, the inner liner that seamless nothing is spliced is made of the seamless rubber components of not being in the mood for sulfuration or partial vulcanization, and the shape of these parts is between general cylindrical shape and annular shape.The inner liner that does not have the partial vulcanization at least of splicing is particularly suitable for embedding new tire or retreads.
Although in conjunction with embodiment explanation the present invention, clearly, the technical staff can obviously find out very replacement device, modification and change according to the above description.Therefore, the present invention is predetermined to include and belongs to interior all these replacement device of spirit and scope, modification and the change that appended claims is determined.
Claims (31)
1. one kind as the rubber liner layer that is used for the free from inflatable inner tube tire of making intermediate, and above-mentioned inner liner comprises:
Do not have the inner liner parts of splicing, these parts are made of the rubber components with cardinal principle cast shape of partial vulcanization at least.
2. rubber liner layer as claimed in claim 1 is characterized in that, the inner liner of cast shape is made of the rubber components of hollow cardinal principle annular.
3. rubber liner layer as claimed in claim 2 is characterized in that, its wall thickness of the inner liner of annular shape is constant substantially.
4. rubber liner layer as claimed in claim 1 is characterized in that, the tubular inner liner of above-mentioned cast shape is made of the rubber membrane of the circle tubular with opening.
5. rubber liner layer as claimed in claim 4 is characterized in that the inner liner of drum has contoured, and the wall thickness of the opposed end of inner liner is less than the thickness of inner liner middle body.
6. one kind as making the rubber liner layer that intermediate is used for the free from inflatable inner tube tire, and above-mentioned inner liner adopts following method manufacturing:
The inner liner parts that the nothing of rubber membrane is spliced are molded into the cast shape;
At least the inner liner parts spliced of the molded nothing of partial vulcanization.
7. rubber liner layer as claimed in claim 6 also comprises the step with the injection-molded one-tenth cast of inner liner shape.
8. rubber liner layer as claimed in claim 6 comprises that also Dou inner liner transfer moulding becomes the step of graphics shape.
9. rubber liner layer as claimed in claim 6 also comprises the step that the inner liner compression moulding is become the cast shape.
10. rubber liner layer as claimed in claim 6, further comprising the steps of:
Squeezed the continuous pipe of elastomeric material, this pipe has the profile of given shape;
At least portion's sulfuration should be managed continuously; With
This continuous pipe is cut into the inner liner of the partial vulcanization at least of cast shape.
11. rubber liner layer as claimed in claim 6 also comprises the step that constitutes cast shape inner liner, this inner liner has hollow annular shape.
12. rubber liner layer as claimed in claim 11 comprises that also the step of the inner liner of looping shape, this inner liner have constant substantially wall thickness.
13. rubber liner layer as claimed in claim 6 also comprises the step of the cast inner liner that constitutes the drum with opening.
14. rubber liner layer as claimed in claim 13 also comprises the step that constitutes the cylindrical shape inner liner with contoured, wherein the wall thickness of inner liner opposed end is less than the thickness of inner liner middle body.
15. a method of making the free from inflatable inner tube tire may further comprise the steps:
Form a rubber tire that assembles fully, have the inner liner parts spliced of the nothing of partial vulcanization at least;
The rubber tire that assembles is fully put into tire and sulfurizing mould;
The gas or the liquid of pressurization are introduced in tire and the sulfurizing mould;
Make the gas or the liquid of pressurization face toward inner liner, force tire to be pressed against on the die wall, thus molded and sulfuration rubber tire.
16. method as claimed in claim 15 also comprises the step of the rubber tire of forming belt inner liner, in this to have the annular shape of round substantially.
17. method as claimed in claim 16 comprises that also the step of looping inner liner, this inner liner have constant substantially wall thickness.
18. method as claimed in claim 15 comprises that also the step of the rubber tire of forming belt inner liner, this inner liner have the drum of round substantially.
19. method as claimed in claim 18 is further comprising the steps of: constitute the cylindrical shape inner liner with contoured, wherein the wall thickness of inner liner opposite end is less than the thickness of inner liner middle body.
20. a method of making the free from inflatable inner tube tire may further comprise the steps:
Form an other assembling that does not have inner liner rubber tire completely;
The inner liner parts that the nothing of near small part sulfuration is spliced embed this and assemble in addition completely in the rubber tire;
The rubber tire of assembling is fully put into tire and sulfurizing mould;
The gas or the liquid of pressurization are introduced in this tire and the sulfurizing mould;
Make gas-pressurized or liquid facing to inner liner, force tire to be pressed against on the die wall, thus molded and sulfuration rubber tire.
21. method as claimed in claim 20 also comprises the step of the inner liner parts that the nothing that is inserted into small part sulfuration is spliced, this inner liner has the annular shape of round substantially.
22. method as claimed in claim 21 also comprises looping liner step, this inner liner has constant substantially wall thickness.
23. a method of making the free from inflatable inner tube tire may further comprise the steps:
Form the rubber tire of assembling fully in addition of no inner liner parts;
The rubber tire of assembling is fully in addition put into tire and sulfurizing mould;
In the gas or the air bag in liquid introducing tire and the sulfurizing mould with pressurization, force tire to be pressed against on the die wall thus, thus the molded and other rubber tire of assembling fully of sulfuration;
The inner liner parts that the nothing of near small part sulfuration is spliced are embedded in addition the vulcanized tyre of assembling fully;
With the vulcanized tyre of assembling fully and at least the inner liner parts spliced of the nothing of partial vulcanization put into tire and sulfurizing mould;
Inner liner with the gas or the liquid of pressurization are spliced facing to the nothing of partial vulcanization at least forces tire to be pressed against on the die wall, until the tire process finishing.
24. as right 23 described methods, comprise also and insert the step of the inner liner parts spliced of the nothing of partial vulcanization at least that these inner liner parts have the annular shape of round substantially.
25. method as claimed in claim 24 comprises that also the step of looping inner liner, this inner liner have constant substantially wall thickness.
26. method as claimed in claim 23 may further comprise the steps: the inner liner parts are contained in the vulcanized tyre of assembling fully in addition with mechanical means.
27. method as claimed in claim 23 may further comprise the steps: with mechanical means the inner liner parts are contained in tire and the sulfurizing mould, to substitute air bag.
28. the method for retreads may further comprise the steps:
By with one at least the inner liner parts spliced of the nothing of partial vulcanization place a side of carcass, on an opposed side of carcass, place the rubber bed course then, place tyre surface subsequently again, and assemble the tyre assembly of a renovation;
The tyre assembly of renovation is put into vulcanizing chamber;
Make the tyre assembly of renovation under the temperature and pressure that requires, keep a period of time, cure until the tire that renovates.
29. method as claimed in claim 28 is further comprising the steps of: the inner liner parts that the nothing of near small part sulfuration is spliced are placed on the carcass, and part has the annular shape of round substantially in this inner liner.
30. method as claimed in claim 29 also comprises constituting the wall thickness step of constant ring lining layer substantially.
31. method as claimed in claim 30 comprises with mechanical means the inner liner parts are contained in step on the carcass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97182071 CN1248939A (en) | 1997-03-25 | 1997-03-25 | Vulcanized innerliner and method of utilizing the same for pneumatic tyres |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97182071 CN1248939A (en) | 1997-03-25 | 1997-03-25 | Vulcanized innerliner and method of utilizing the same for pneumatic tyres |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1248939A true CN1248939A (en) | 2000-03-29 |
Family
ID=5178276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97182071 Pending CN1248939A (en) | 1997-03-25 | 1997-03-25 | Vulcanized innerliner and method of utilizing the same for pneumatic tyres |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1248939A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198733A (en) * | 2010-03-23 | 2011-09-28 | 三角轮胎股份有限公司 | Inner tube mould and method for stamping identification on inner tube by utilizing the same |
| CN102922759A (en) * | 2012-11-09 | 2013-02-13 | 双钱集团股份有限公司 | Method for confirming machining size of semi-finished product of inside liner according to thickness of inside liner required by tire |
| CN104760173A (en) * | 2015-04-09 | 2015-07-08 | 徐州天诺矿山设备有限公司 | Steel and rubber composite pipeline vulcanization technological method |
| CN109968701A (en) * | 2017-12-28 | 2019-07-05 | 厦门碳帝复合材料科技有限公司 | A kind of preparation method of the reusable double-deck airbag |
-
1997
- 1997-03-25 CN CN 97182071 patent/CN1248939A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102198733A (en) * | 2010-03-23 | 2011-09-28 | 三角轮胎股份有限公司 | Inner tube mould and method for stamping identification on inner tube by utilizing the same |
| CN102922759A (en) * | 2012-11-09 | 2013-02-13 | 双钱集团股份有限公司 | Method for confirming machining size of semi-finished product of inside liner according to thickness of inside liner required by tire |
| CN104760173A (en) * | 2015-04-09 | 2015-07-08 | 徐州天诺矿山设备有限公司 | Steel and rubber composite pipeline vulcanization technological method |
| CN109968701A (en) * | 2017-12-28 | 2019-07-05 | 厦门碳帝复合材料科技有限公司 | A kind of preparation method of the reusable double-deck airbag |
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