CN110194028A - Steel wire carcass UHP tire and its manufacturing process - Google Patents

Steel wire carcass UHP tire and its manufacturing process Download PDF

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Publication number
CN110194028A
CN110194028A CN201910560707.0A CN201910560707A CN110194028A CN 110194028 A CN110194028 A CN 110194028A CN 201910560707 A CN201910560707 A CN 201910560707A CN 110194028 A CN110194028 A CN 110194028A
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CN
China
Prior art keywords
carcass
steel wire
package
tire
endpoint
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201910560707.0A
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Chinese (zh)
Other versions
CN110194028B (en
Inventor
徐伟
王君
刘杰
李勇
戚顺青
刘继发
任振兴
张晨曦
唐效蕾
张琳
王伟
邢正涛
赵翔
李园园
赵玉娜
梁垂燕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Doublestar Tire Industry Co Ltd
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Qingdao Doublestar Tire Industry Co Ltd
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Priority to CN201910560707.0A priority Critical patent/CN110194028B/en
Publication of CN110194028A publication Critical patent/CN110194028A/en
Application granted granted Critical
Publication of CN110194028B publication Critical patent/CN110194028B/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/0005—Pretreatment of tyres or parts thereof, e.g. preheating, irradiation, precuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08—Building tyres
    • B29D30/20—Building tyres by the flat-tyre method, i.e. building on cylindrical drums
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C13/00—Tyre sidewalls; Protecting, decorating, marking, or the like, thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/0009—Tyre beads, e.g. ply turn-up or overlap features of the carcass terminal portion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/04—Bead cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0603—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead characterised by features of the bead filler or apex
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C15/00—Tyre beads, e.g. ply turn-up or overlap
    • B60C15/06—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead
    • B60C15/0628—Flipper strips, fillers, or chafing strips and reinforcing layers for the construction of the bead comprising a bead reinforcing layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/0007—Reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/02—Carcasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C9/00—Reinforcements or ply arrangement of pneumatic tyres
    • B60C9/18—Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
    • Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction 

Abstract

The invention discloses a kind of steel wire carcass UHP tire and its manufacturing process, belong to steel wire carcass tire art.The steel wire carcass UHP tire, tire longitudinal direction section includes the crown positioned at upper outside, the tire shoulder being connected with crown, the sidewall being connected with tire shoulder, the tyre bead being connected with lower sidewall, and the carcass on the inside of tire section, carcass include carcass ply, carcass ply is made of single layer of wires cord, all-steel cord includes more steel wires, the strength index of carcass ply is 30000-50000N* root/dm, and the Fracture Force of all-steel cord is 350-850N, and the bending stiffness of all-steel cord is 70Nmm2‑130Nmm2, for the diameter of all-steel cord between 0.5mm-0.8mm, steel wire diameter is less than 0.3mm.The present invention solves the prior art when can not solve steel wire for carcass, and existing rim of the mouth comes to nothing and problem of stress concentration, the problem of cannot achieve the industrialized production of steel wire carcass tires, product have the characteristics that intensity is big, handling, comfort property is good, rolling resistance is small, durability is good, can industrialized production.

Description

Steel wire carcass UHP tire and its manufacturing process
Technical field
The invention belongs to steel wire carcass tire art more particularly to a kind of steel wire carcass UHP tire and its manufacturing process.
Background technique
UHP tire, popular finger high-performance tire, refer mainly to the series of tire aspect ratio 55 hereinafter, speed step at V grades and with On tire.Currently, UHP carcass structure generallys use the carcass materials such as polyester fiber, nylon, artificial silk, aramid fiber, these Material is capable of providing more excellent handling of tire.However, comfort is poor, existing simultaneously since UHP tire sidewall height is low There is UHP tire sidewall to only have one layer or two layers carcass ply as support, the impact resistance of tire is weaker, it is easy to hit It beats a drum the problem of wrapping.
Chinese patent CN201610951286 discloses a kind of all steel muddy ground tire, and the tire is with the replacement of layer of steel wire cord The three layers of nylon or polyester material of existing muddy ground tire, improve the intensity, impact resistance and endurance quality of tire.
However, due to steel wire there are flexural rigidities big, the strong problem of resilience, holding when steel wire is used for carcass material It easily causes rim of the mouth to come to nothing and the problems in stress collection, influences the service life of tire, above-mentioned patent does not solve fundamentally Existing rim of the mouth is come to nothing and problem of stress concentration when steel wire is used for carcass, cannot achieve the industrial metaplasia of steel wire carcass tires It produces.
Summary of the invention
Place in view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to the prior arts to solve Existing rim of the mouth is come to nothing and problem of stress concentration when steel wire is used for carcass, cannot achieve the industrial metaplasia of steel wire carcass tires The problem of production, proposes that a kind of intensity is big, handling, comfort property is good, rolling resistance is small, durability is good, can industrialized production Steel wire carcass UHP tire and its manufacturing process.
To solve the technical problem, the technical solution adopted by the present invention are as follows:
The present invention provides a kind of steel wire carcass UHP tire, tire longitudinal direction section includes the crown positioned at upper outside, with The connected tire shoulder of the crown, the sidewall being connected with the tire shoulder, the tyre bead being connected with the lower sidewall, and it is located at tire Carcass on the inside of section, the carcass include carcass ply, and the carcass ply is made of single layer of wires cord, the steel wire curtain Line includes more steel wires, and the strength index of the carcass ply is 30000-50000N* root/dm, the fracture of the all-steel cord Power is 350-850N, and the bending stiffness of the all-steel cord is 70Nmm2-130Nmm2, the diameter of the all-steel cord is 0.5 Between mm-0.8mm, the steel wire diameter is less than 0.3mm.
Preferably, the tyre bead includes wire loop, triangle rubber is coated on the circumference of the wire loop, the triangle rubber is certainly Triangle rubber lower extreme point is radially extended to triangle rubber upper extreme point, and the carcass bypasses edge after the wire loop bottom reversed to sidewall Carcass anti-package endpoint is extended radially to, thickening film, the carcass anti-package endpoint are equipped between the carcass and the triangle rubber It is connected by the thickening film with the triangle rubber.
Preferably, the thickening film includes endpoint on the inside of the thickening film on the inside of the triangle rubber, and is located at institute The thickening film outer point on the outside of triangle rubber is stated, the radial height of endpoint is higher than on the triangle rubber on the inside of the thickening film The radial height of endpoint, the radial distance between the thickening film inside endpoint and the triangle rubber lower extreme point are not less than 5mm, Radial distance on the inside of the thickening film between endpoint and the triangle rubber upper extreme point is not less than 10mm；Outside the thickening film The radial height of side point is not less than the radial height of the carcass anti-package endpoint.
Preferably, strengthening course is equipped between the carcass and the sidewall, the lower end of the strengthening course is located under strengthening course Anchor point, the upper end of the strengthening course are located at anchor point on strengthening course, and the carcass anti-package endpoint is radially positioned at the reinforcement On the lower anchor point of layer and the strengthening course between anchor point；Under the strengthening course between anchor point and the carcass anti-package endpoint Radial distance is 10-20mm；The radial height of anchor point is higher than the radial height of the triangle rubber upper extreme point on the strengthening course, The radial distance of anchor point and the triangle rubber upper extreme point is greater than 10mm on the strengthening course；The strengthening course is in tire circumference 0-55 ° of angle.
Preferably, the radial height of the triangle rubber upper extreme point is higher than the radial height of the carcass anti-package endpoint, described The radial distance of triangle rubber upper extreme point and the carcass anti-package endpoint is greater than 10mm, the institute with the carcass anti-package endpoint connecting place The thickness of triangle rubber is stated not less than 2mm, the thickening film with a thickness of 0.5-2mm.
It preferably, further include the wheel rim protection lower extreme point for being located at the sidewall and being connected with wheel rim, carcass anti-package end Radial distance between point and wheel rim protection lower extreme point is less than 15mm.
Preferably, the radial height of the triangle rubber upper extreme point is lower than the radial height of the carcass anti-package endpoint, described The radial distance of triangle rubber upper extreme point and the carcass anti-package endpoint is greater than 10mm, the thickening film with a thickness of 1.0- 4.0mm。
Preferably, positioned at the wire loop two sides the carcass inner surface the carcass anti-package endpoint between Distance is 2.0-5.0mm；The outer surface of the carcass on the outside of the wire loop and the sidewall outer surface are in the tire Distance between body anti-package endpoint is 2.5-10mm.
The present invention also provides a kind of manufacture works for steel wire carcass UHP tire described in any of the above-described technical solution Skill, including severing technique and moulding process,
Severing technique include lead out, severing, connector；
The severing includes: that fabric clamp pushes down wirecord fabric, then by rectangle hilt steel wire cord fabric cutting；The rectangle Knife includes upper and lower two rectangle cut-off knives；The rectangle knife knife face is alloy knife face；The rectangle knife knife face Rockwell hardness is HRC28-HRC45；Upper and lower two rectangle cut-off knife horizontal clearances are less than 1.5；
The connector includes: that the wirecord fabric after severing is turned to by magnet holder absorption, is transported to splicing apparatus On spliced；Feeding and the gap passed between material are adjusted to 1.5-2.5mm, upper and lower splicer suture pressure adjust to 0.15-0.25Mpa；
Moulding process includes: fitting, buckle ring, pre-setting, carcass anti-package, unloads tire；
The fitting includes that the fitting of PA component, strengthening course fitting and steel wire tire are shown consideration for and closed；Wherein steel wire tire consideration has merged After connector, rear pressure roller extend out to designated position and compresses steel wire carcass, and carcass drum is rotated with the revolving speed of 80 ± 10 r/min, Platen pressure is maintained at 2-2.5bar afterwards, and carries out translation rolling outward according to the lateral velocity for having set 5-15mm/sec, directly Rolling to carcass endpoint terminates.
Preferably, the buckle ring includes tyre bead locking block locking buckle ring；Wherein tyre bead locking block is by after tyre bead locking, and protects Tyre bead locking block high pressure is held in 5.5bar or more；
The pre-setting includes carcass drum inflation；Wherein the carcass drum is inflated with the pressure of 1.1-1.3bar；
The carcass anti-package includes counter-wrapping rod anti-package；When counter-wrapping rod anti-package, the pressure of the counter-wrapping rod is not less than 3.5bar； And rotation pressure roller keeps the rolling pressure of 2-3bar to be rolled after completing anti-package.
The present invention also provides another systems for steel wire carcass UHP tire described in any of the above-described technical solution Make technique, including severing technique and moulding process, which is characterized in that
Severing technique include lead out, severing, connector；
The severing includes: that fabric clamp pushes down wirecord fabric, then by rectangle hilt steel wire cord fabric cutting；The rectangle Knife includes upper and lower two rectangle cut-off knives；The rectangle knife knife face is alloy knife face；The rectangle knife knife face Rockwell hardness is HRC28-HRC45；Upper and lower two rectangle cut-off knife horizontal clearances are less than 1.5；
The connector includes: that the wirecord fabric after severing is turned to by magnet holder absorption, is transported to splicing apparatus On spliced；Feeding and the gap passed between material are adjusted to 1.5-2.5mm, upper and lower splicer suture pressure adjust to 0.15-0.25Mpa；
Moulding process includes: liner layer and carcass fitting, buckle ring, carcass anti-package, anti-package pressing, tire bead cloth and sidewall patch It closes, fetus molding；
Liner layer and carcass fitting include liner layer fitting, steel wire tire consideration conjunction；Wherein steel wire tire is shown consideration for merge and completes to connect After head, lower compression roller rising touches steel wire carcass, and keeps pressure in 1-2bar, and carcass drum is revolved with the speed of 600-800mm/s Turn, lower compression roller carries out translation rolling with the speed of 5-30mm/s, from steel wire carcass middle position to carcass drum endpoint.
Preferably, the buckle ring includes the crawl of finger-type piece and bead ring buckle ring；The time of its finger-type piece crawl steel wire carcass For 2-4s；When bead ring buckle ring, the dead time is 1-2s when bead ring is moved to designated position；
The carcass anti-package includes reverse-wrapped capsule inflation；Wherein reverse-wrapped capsule inflation is specially that reverse-wrapped capsule inflates 2-4s, Pressure is maintained at 3.5-4.5bar；After reverse-wrapped capsule anti-package stagnates 2-4s afterwards in place, reverse-wrapped capsule is deflated；
The anti-package pressing includes rolling；Wherein rolling is specially that lower compression roller rising touches steel wire carcass, and keeps pressing Power is rotated in 2-3bar, carcass drum with the speed of 600-800mm/s, and lower compression roller is with the speed of 10-30mm/s, by carcass drum end Point to steel wire carcass anti-package endpoint is rolled.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention provides a kind of steel wire carcass UHP tire, it can be obviously improved the security intensity of UHP tire, thus into one Step reduces the risk damaged after tire collides under steam；
2. the present invention provides a kind of steel wire carcass UHP tire, of the invention compared to tire made of more other fibrous materials The material cost of UHP tire is lower, and rolling resistance reduces, and fuel consumption per hundred kilometers reduces 2%-4%, is conducive to low-carbon environment-friendly；
3. the present invention provides a kind of steel wire carcass UHP tire, other fibrous materials is substituted using steel wire, UHP tire is made, Comfort, handling are promoted in the process of moving, and dry ground braking distance and noise level make moderate progress；
4, the present invention provides a kind of manufacturing process of steel wire carcass UHP tire, overcomes the defect of prior art, realizes The industrialized production of steel wire carcass UHP tire, product quality comprehensive qualified rate reach 99.6%, greatly improve productivity Energy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of steel wire carcass UHP tire provided by the embodiment of the present invention 1；
Fig. 2 is the shoulder region structural schematic diagram of steel wire carcass UHP tire provided by the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of steel wire carcass UHP tire bead provided by the embodiment of the present invention 1；
Fig. 4 is the structural representation for the tyre bead that steel wire carcass UHP tire provided by the embodiment of the present invention 1 is equipped with strengthening course Figure；
Fig. 5 is the structural schematic diagram of steel wire carcass UHP tire bead provided by the embodiment of the present invention 2；
Fig. 6 is the structural schematic diagram of steel wire carcass UHP tire bead provided by the embodiment of the present invention 3；
Fig. 7 is the partial enlarged view at steel wire carcass UHP tire bead structure A provided by the embodiment of the present invention 3；
Fig. 8 is steel wire carcass UHP tyre forming process flow diagram provided by 4- of embodiment of the present invention embodiment 5；
Fig. 9 is steel wire carcass UHP tyre forming process flow diagram provided by 6- of embodiment of the present invention embodiment 7；
In above each figure: 1, crown；2, tire shoulder；3, sidewall；4, tyre bead；41, wire loop；42, triangle rubber；421, triangle rubber Lower extreme point；422, triangle rubber upper extreme point；43, film is viscosified；431, endpoint on the inside of thickening film；432, film outboard end is viscosified Point；44, strengthening course；441, anchor point under strengthening course；442, anchor point on strengthening course；45, wheel rim protects lower extreme point；5, carcass； 51, carcass anti-package endpoint；6, liner layer；7, belt；8, cap strip；9, type glue；10, carcass drum；11, counter-wrapping rod；12, finger-type Piece；13, bead ring；14, reverse-wrapped capsule；15, PA component.
Specific embodiment
In the following, the present invention is specifically described by illustrative embodiment.It should be appreciated, however, that not into one In the case where step narration, element, structure and features in an embodiment can also be advantageously incorporated into other embodiments In.
In the description of the present invention, it is to be understood that, the side of the instructions such as term " on ", "lower", "bottom", "inner", "outside" Position or positional relationship are to be merely for convenience of description of the present invention and simplification of the description based on attached orientation or positional relationship shown in FIG. 1, Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because This is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connected " " connects Connect " it shall be understood in a broad sense, for example, it may be being fixedly connected, it may be a detachable connection, or be integrally connected；It can be straight It connects connected, the connection inside two elements can also be can be indirectly connected through an intermediary.For the common skill of this field For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Embodiment 1: as shown in Figure 1, the present invention provides a kind of steel wire carcass UHP tire, tire longitudinal direction section includes position In the crown 1 of upper outside, the tire shoulder 2 being connected with crown 1, the sidewall 3 being connected with tire shoulder 2, the tyre bead being connected with 3 lower part of sidewall 4, and the carcass 5 on the inside of tire section, carcass 5 include carcass ply, carcass ply is made of single layer of wires cord, All-steel cord includes more steel wires, and the strength index of carcass ply is 30000-50000N* root/dm, the Fracture Force of all-steel cord For 350-850N, the bending stiffness of all-steel cord is 70Nmm2-130Nmm2, the diameter of all-steel cord be 0.5mm-0.8 mm it Between, steel wire diameter is less than 0.3mm.As shown in Fig. 2, the tire further includes belt 7, type glue is equipped between belt 7 and carcass 5 9, cap strip 8 is equipped on the inside of crown 1.
Steel wire is used as 5 material of carcass with that can enhance tire intensity, tire impact resistance is improved, extends carcass 5 The advantages of service life.However, due to steel wire larger, the high feature of resilience, existing tire construction and life with bending stiffness 5 tire of steel wire carcass that production. art obtains has manufacturing difficulty big, and yield rate is low, the problem of comfort difference.Therefore, in order to It obtains one kind to have excellent performance, and can be realized industrialized production, the steel wire carcass UHP tire of high yield rate needs to overcome numerous Technological difficulties.In terms of material selection, the selection to all-steel cord Fracture Force, bending stiffness and strength index is specifically included On.
About Fracture Force, the Fracture Force of steel wire determines that the intensity of carcass 5 is made in steel wire, and Fracture Force is higher, theoretically, system At tire bear higher load when be unlikely to fail；Under identical line footpath, the Fracture Force of general steel wire is probably polyester 3-6 times, so if merely from the point of view of Fracture Force, 1-3 strata can be substituted using the steel wire carcass 5 of single layer on car tyre Ester carcass 5；Because TBR (meridian truck tire) essentially consists in carrying, wear-resisting, and PCR (passenger car radial) is mainly chased after It asks comfortable, manipulates, movement, safety performance, it is therefore desirable to guarantee product performance demands as far as possible, while consider product to strong The basic demand of degree goes to reduce wire rupture power；Reducing Fracture Force means to require the line footpath of all-steel cord thin, because of steel curtain The phosphorus content of the raw material steel wire wire rod of line is substantially fixation, probably between 0.6%-0.9%.
About bending stiffness, the bending stiffness and the line footpath of steel wire, number of share of stock of all-steel cord have relationship, with containing for steel wire itself Carbon amounts does not have direct corresponding relationship；Bending stiffness, that is, steel wire bent complexity cuts and forms work for severing process The anti-package of sequence is most important；The size of bending stiffness determines that steel wire can realize regular lot manufacturing feasibility in factory, Bending stiffness is too large or too small, is impossible to realize the regular lot production of product.
About strength index, the strength index in the present invention refers to Fracture Force and rolls the product of density, and strength index is different Different products, such as HP, UHP, SUV, the Series Tyres such as AT, MT can be limited to；Strength index is too small, the security performance of product It not can guarantee, strength index is excessive, waist performance, cost waste.
The present embodiment, which passes through, specifically limits the strength index of carcass ply as 30000-50000N* root/dm, all-steel cord Fracture Force is 350-850N, and the bending stiffness of all-steel cord is 70Nmm2-130Nmm2, the diameter of all-steel cord is 0.5mm- Between 0.8mm, steel wire diameter is less than 0.3mm, is improving steel wire carcass UHP tire intensity, impact resistance, the premise of load carrying behaviour Under, it ensure that the comfortable of steel wire carcass UHP tire, manipulate, movement, safety performance.The determination of above each parameter realizes steel Selection standard during silk carcass UHP tire industry metaplasia production, steel wire carcass UHP tire industry metaplasia, which is produced, has weight Want meaning.
As shown in figure 3, tyre bead 4 includes wire loop 41, triangle rubber 42, triangle rubber 42 are coated on the circumference of wire loop 41 It radially extends from triangle rubber lower extreme point 421 to triangle rubber upper extreme point 422, carcass 5 is around 41 bottom reversed of wire loop to sidewall It is radially extended after 3 to carcass anti-package endpoint 51, thickening film 43, carcass anti-package endpoint is equipped between carcass 5 and triangle rubber 42 51 are connected by viscosifying film 43 with triangle rubber 42.Steel wire has bending stiffness larger when being used as 5 material of carcass, and resilience is high The problem of, the phenomenon that existing simultaneously the problem of viscosity difference between carcass 5 and wire loop 41, rim of the mouth is be easy to cause to come to nothing, influence to take turns Tire quality.By the way that thickening film 43 is arranged between carcass 5 and triangle rubber 42, the difficulty of steel wire rebound is increased, is increased simultaneously Adhesiveness between triangle rubber 42 and carcass 5, and have the function of that low-heat-generation is warping strength improves tire in complex situations Service performance.It should be noted that the present embodiment, which also defines carcass anti-package endpoint 51, passes through thickening film 43 and triangle rubber 42 It is connected, reason is have bending stiffness larger when carcass 5 forms anti-package, the high problem of resilience, if carcass 5 is directly with three Angle glue 42 contacts, and under conditions of constant temperature and humidity, fetus storage 2-6h bead will come to nothing problem, is unfavorable for tire The storage of embryo；By increasing thickening film 43 between triangle rubber 42 and carcass 5, the fetus resting period extends to 16-20h, prolongs The fetus resting period has been grown, fetus presentation quality is improved, rim of the mouth has been alleviated and comes to nothing problem.
In order to further increase steel wire rebound difficulty, the adhesiveness between triangle rubber 42 and carcass 5 is improved, film 43 is viscosified Endpoint 431 on the inside of thickening film including being located at 42 inside of triangle rubber, and the thickening film outboard end positioned at 42 outside of triangle rubber The radial height of point 432, thickening film inside endpoint 431 is higher than the radial height of triangle rubber upper extreme point 422, viscosifies on the inside of film Radial distance between endpoint 431 and triangle rubber lower extreme point 421 is not less than 5mm, on the inside of thickening film on endpoint 431 and triangle rubber Radial distance between endpoint 422 is not less than 10mm；The radial height for viscosifying film outer point 432 is not less than carcass anti-package end The radial height of point 51.The position setting of thickening film outer point 432 ensure that thickening film 43 pastes the edging of carcass 5 Attached or package is conducive to increase steel wire rebound difficulty, prevents rim of the mouth from coming to nothing the generation of phenomenon.In order to ensure thickening film 43 exists Dimensional stability in production process and there is stronger Efficient Adhesive Promotion, the shore hardness of the thickening film 43 is 65-78.
As shown in figure 4, to guarantee that ess-strain transition is gentle at carcass anti-package endpoint 51, while improving the durable of tire Property, strengthening course 44 is equipped between carcass 5 and sidewall 3, the lower end of strengthening course 44 is located at anchor point 441 under strengthening course, strengthening course 44 Upper end be located at anchor point 442 on strengthening course, carcass anti-package endpoint 51 is radially positioned at anchor point 441 and reinforcement under strengthening course On layer between anchor point 442；Radial distance under strengthening course between anchor point 441 and carcass anti-package endpoint 51 is 10-20mm；It mends The radial height of anchor point 442 is higher than the radial height of triangle rubber upper extreme point 422, anchor point 442 and three on strengthening course on strong layer The radial distance of angle glue upper extreme point 422 is greater than 10mm；Strengthening course 44 and tire circumference are in 0-55 ° of angle.It should be noted that In tire, the hardness or transition of stress such as fruit product are uneven, it is easy to unevenly put and be damaged in transition, tire is expert at Repeated deformation during sailing, the uneven place of transition of stress are easy to that earlier period damage occurs.And the carcass anti-package endpoint of steel wire carcass 5 51 belong to stress concentration point, and the nonhomogeneous hardness of steel wire and adjacent material is larger, it is therefore desirable to which strengthening course 44 carries out hardness transition. In addition, the embodiment specifically defines the endpoint location of strengthening course 44, the reason is that, the set-up mode of 44 endpoint of strengthening course is direct Influence strengthening course 44 whether can at gentle carcass anti-package endpoint 51 ess-strain transition key factor, the present embodiment specifically limits Determine 44 endpoint location of strengthening course, on the one hand realized the exploitativeness of scheme, is on the other hand conducive to banding carcass anti-package end Point 51 mitigates rebound, steel wire carcass anti-package endpoint 51 is wrapped by strengthening course 44, reduces shear stress, prevents tire Earlier period damage extends Life of Tyre.It should be noted that the materials such as nylon 6, nylon66 fiber, polyester, steel wire can be used Material as strengthening course 44.The present embodiment by limit strengthening course 44 and tire circumference in 0-55 ° of angle realize tire at The exploitativeness of type technique, because in practical application, if being 90 ° if it is angle, since circumferential tightening force is too big, primary It cannot achieve anti-package on method molding machine.
Embodiment 2: as shown in figure 5, a kind of steel wire carcass UHP tire is present embodiments provided, triangle rubber upper extreme point 422 Radial height is higher than the radial height of carcass anti-package endpoint 51, triangle rubber upper extreme point 422 and carcass anti-package endpoint 51 it is radial away from From being greater than 10mm, be not less than 2mm with the thickness of the triangle rubber 42 of 51 connecting place of carcass anti-package endpoint, thickening film 43 with a thickness of 0.5-2mm.In view of carcass anti-package 51 cross shears of endpoint are big, the embodiment is to triangle rubber upper extreme point 422, carcass anti-package end The thickness of the triangle rubber 42 of point 51 and 51 connecting place of carcass anti-package endpoint is defined, and is avoided ess-strain and is acted on lower pair The cutting of inside sizing material.Ensure 5 passenger tire of steel wire carcass under high speed driving conditions by designing above, tire is rushed in hardness The fracture for being avoided that triangle rubber 42 is hit down, the driving safety of tire is improved.In order to cooperate triangle rubber 42 to keep away the requirement of thickness Exempt from the cutting under stress to inside sizing material, the shore hardness of the triangle rubber 42 is 72-92.In order to avoid because of carcass anti-package end Rim of the mouth earlier period damage caused by the shearing force of point 51 and casing ply is excessive, the thickness limit of thickening film 43 are 0.5-2mm.
It further, further include the wheel rim protection lower extreme point 45 for being located at sidewall 3 and being connected with wheel rim, carcass anti-package endpoint 51 Radial distance between wheel rim protection lower extreme point 45 is less than 15mm.4 knot of tyre bead in the steel wire carcass UHP tire of the embodiment Structure is 4 structure of steel wire carcass UHP tire bead for there is wheel rim to protect, and is protected by limiting carcass anti-package endpoint 51 and wheel rim Radial distance between lower extreme point 45 is less than 15mm, avoids the cutting under ess-strain effect to outside sizing material.By above Design ensures on the inside of carcass anti-package endpoint 51 as triangle rubber 42, and outside is wear-resisting glue and 3 glue spot of sidewall, stress by firmly to Soft transition improves Life of Tyre conducive to stress dispersion.
Embodiment 3: as shown in fig. 6, present embodiments providing another steel wire carcass UHP tire, triangle rubber upper extreme point 422 radial height is lower than the radial height of carcass anti-package endpoint 51, the diameter of triangle rubber upper extreme point 422 and carcass anti-package endpoint 51 To distance be greater than 10mm, thickening film 43 with a thickness of 1.0-4.0mm.In view of carcass anti-package 51 cross shears of endpoint are big, The embodiment is defined triangle rubber upper extreme point 422, steel wire carcass anti-package endpoint 51, avoids ess-strain and acts on lower pair The cutting of inside sizing material.Ensured on the inside of carcass anti-package endpoint 51 by designing above as triangle rubber 42, outside be wear-resisting glue with 3 glue spot of sidewall, stress is by improving Life of Tyre firmly to soft transition conducive to stress dispersion.In order to avoid because of carcass Rim of the mouth earlier period damage caused by the shearing force of anti-package endpoint 51 and casing ply is excessive, the thickness limit of thickening film 43 are 1.0- 4.0mm。
As shown in fig. 7, be located at 41 two sides of wire loop carcass 5 inner surface between carcass anti-package endpoint 51 away from From for 2.0-5.0mm；Positioned at the outer surface of the carcass 5 in 41 outside of wire loop and 3 outer surface of sidewall at carcass anti-package endpoint 51 The distance between be 2.5-10mm.It should be noted that being located at the inner surface of the carcass 5 of 41 two sides of wire loop at carcass anti-package end Distance between point 51 is d in figure1The distance of expression, outer surface and 3 appearance of sidewall positioned at the carcass 5 in 41 outside of wire loop Distance of face between carcass anti-package endpoint 51 is d in figure2The distance of expression.
Embodiment 4: as shown in figure 8, the steel wire carcass UHP that the present invention also provides a kind of as described in above-mentioned any embodiment The manufacturing process of tire, including severing technique and moulding process,
Severing technique include lead out, severing, connector；
The severing includes: that fabric clamp pushes down wirecord fabric, then by rectangle hilt steel wire cord fabric cutting；The rectangle Knife includes upper and lower two rectangle cut-off knives；The rectangle knife knife face is alloy knife face；The rectangle knife knife face Rockwell hardness is HRC28-HRC45；Upper and lower two rectangle cut-off knife horizontal clearances are less than 1.5；
The connector includes: that the wirecord fabric after severing is turned to by magnet holder absorption, is transported to splicing apparatus On spliced；Feeding and the gap passed between material are adjusted to 1.5-2.5mm, upper and lower splicer suture pressure adjust to 0.15-0.25Mpa；
Moulding process includes: fitting, buckle ring, pre-setting, 5 anti-package of carcass, unloads tire；
Fitting includes that the fitting of PA component 15, the fitting of strengthening course 44 and steel wire carcass 5 are bonded；Wherein steel wire carcass 5 is bonded simultaneously After completing connector, rear pressure roller extend out to designated position and compresses steel wire carcass 5, and carcass drum 10 is carried out with the revolving speed of 80 ± 10r/min Rotation, rear platen pressure is maintained at 2-2.5bar, and carries out translation rolling outward according to the lateral velocity for having set 5-15mm/sec Pressure, until rolling at 5 endpoint of carcass terminates.
Severing process cuts steel wire, is (the class realized by the mutual shearing steel cord of upper and lower two choppers in fact It is similar to scissors), steel wire line footpath is thicker, and the rigidity of steel wire is big, is conducive to cut；Conversely, then difficult；Difference process is to steel wire when molding The requirement of cord is different, and when being 5 connector of carcass first, 5 connector of carcass is to carry out carcass 5 by dedicated 5 stitching unstrument of carcass Docking (be similar to zipper)；The line footpath of all-steel cord is thicker, and rigidity is bigger, easier connector, conversely, being then not easy connector；It should Requirement in process with severing to steel wire is consistent；Secondly, anti-package process for steel wire line footpath and rigidity requirement then on the contrary, line footpath Thicker, rigidity is bigger, and bending stiffness is also higher, and anti-package is more difficult, while after anti-package, and the resilience of steel wire can allow steel wire carcass 5 With the equal components delamination of triangle rubber 42, defective products is formed；And steel wire line footpath is thinner, rigidity is smaller, and bending stiffness is lower, easier to be anti- Packet, fetus resting period is longer, is more conducive to the stabilization of molding fetus quality.
Requirement in comprehensive severing process, 5 connector process of carcass and anti-package process to all-steel cord, in order to improve tire at The comprehensive performance of type, the line footpath for 5 all-steel cord of carcass selected in the present embodiment is in 0.8mm or less；And 5 all-steel cord of carcass Line footpath in 0.8mm hereinafter, will cut highly difficult, production stability is not high, automatic production is difficult to realize, but if using line The all-steel cord of diameter 0.8mm or more is as carcass 5, this meeting of production liter is very high, and anti-package is difficult, and causes properties of product superfluous, Simultaneously as stiffness of steel cord is big, fatigability and comfort will be very poor, influence PCR product performance.
The wirecord fabric that all-steel cord is worked out in the present embodiment, the line footpath of all-steel cord is in 0.8mm or less；This Embodiment provides a kind of severing technique of the line footpath in 0.8mm wirecord fabric below of all-steel cord, to line footpath 0.8mm with Under all-steel cord constitute wirecord fabric carry out severing when, select knife face Rockwell hardness be HRC28-HRC45 rectangle knife into Row severing, effective guarantee notch are smooth；Preferably, the rectangle knife selects the titanium alloy cut-off knife of Rockwell hardness HRC30.Select titanium The reason of alloy cut-off knife is: titanium alloy has very high intensity, tensile strength 686-1176MPa, and density is only steel 60% or so；Hardness is higher；Elasticity modulus is low, the half of about common steel knife；Titanium alloy cut-off knife is in wirecord fabric is cut Using having the following prominent advantages: that deformation coefficient is small, deformation coefficient is less than or close to 1, steel wire sliding friction on knife face is big Big to increase, enhancing cuts effect；Shearing force on unit area is big, and since the contact length of steel wire and knife face is extremely short, unit is connect Shearing force in contacting surface product greatly increases, and ensure that cutting quality.In addition in the present embodiment when severing, upper and lower two squares Shape cut-off knife horizontal clearance is less than 1.5；Cutting for unit area cord can be increased by controlling upper and lower two rectangle cut-off knives horizontal clearance Shear force guarantees that all-steel cord is smoothly cut, and notch is smooth；In order to avoid causing cord notch flash, product quality is influenced.Furthermore it connects When head, feeding and the gap passed between material are adjusted to 1.5-2.5mm, and upper and lower splicer suture pressure is adjusted to 0.15- 0.25Mpa；With feeding when top connection and pass gap between material control can effective control joint quality, avoid dilute line, doubling Problem occurs, and influences product dynamic balancing, uniformity qualification rate.The control of suture pressure sutures all-steel cord connector smoothly, and And the arrangement of joint all-steel cord is uniformly, does not there is dilute line, doubling and other issues.
Molding machine anti-package uses the anti-package of two kinds of forms at present, and one is use 11 anti-package of counter-wrapping rod, 11 anti-package of counter-wrapping rod When, due to having gap between counter-wrapping rod 11, cause anti-package not close, but anti-package pressure is big；Therefore, easily there is steel wire rebound, It is the problem of bead separation, short so as to cause the resting period of fetus.
The present embodiment provides in a kind of moulding process, as shown in figure 8, the moulding process uses: fitting, buckle ring, pre-setting, 5 anti-package of carcass unloads tire；Wherein fitting includes that the fitting of PA component 15, the fitting of strengthening course 44 and steel wire carcass 5 are bonded；PA component 15 For 3 composite members of liner sidewall.After steel wire carcass 5 is bonded and completes connector, increase rolling step；In addition steel wire is rolled in rear pressure roller When carcass 5, carcass drum 10 is rotated with the revolving speed of 80 ± 10r/min, and rear 9 pressure of pressure roller is maintained at 2-2.5bar, and according to The lateral velocity of the 5-15mm/sec set carries out translation rolling outward；The above rolling step and rolling parameter setting can have Gas between effect discharge carcass 5 and inner liner, the bubble rate of fetus reduce by 85% or more, substantially reduce and artificial dazzling repair fetus Labor intensity, fetus presentation quality greatly promotes.
Wherein when carrying out the fitting of PA component 15, the fitting of strengthening course 44 and the fitting of steel wire carcass 5, one component of every fitting, Carcass drum 10 rotates an angle, on the one hand the connector misfit of each component is improved the integral strength of tire, on the other hand The weight distribution of balanced tire.
Further, buckle ring includes tyre bead locking block locking buckle ring；After wherein tyre bead locking block locks tyre bead 4, and protect Tyre bead locking block high pressure is held in 5.5bar or more；
Pre-setting includes that carcass drum 10 is inflated；Wherein carcass drum 10 is inflated with the pressure of 1.1-1.3bar；
5 anti-package of carcass includes 11 anti-package of counter-wrapping rod；When 11 anti-package of counter-wrapping rod, the pressure of counter-wrapping rod 11 is not less than 3.5bar； And rotation pressure roller keeps the rolling pressure of 2-3bar to be rolled after completing anti-package.
In order to which the resting period for further avoiding occurring fetus is short, steel wire rebound, the problem of bead separation, the present embodiment make-up Circle, pre-setting and 5 anti-package technique of carcass have carried out following limitation.Tyre bead locking block locks tyre bead 4 when buckle ring in the embodiment Afterwards, it and keeps tyre bead locking block high pressure in 5.5bar or more, effectively tyre bead 4 can be accurately positioned, when molding is not easy to shift, together When tyre bead 4 and steel wire carcass by the adhesive effect of thickening film, fitting is closer at rim of the mouth.
Carcass drum 10, which is inflated expansion with the pressure of 1.1-1.3bar, when pre-setting can effectively ensure composite members and steel Silk has the full contact of 5 cord of carcass, and is completely embedded；To improve 5 bond strength of carcass.Because steel wire is relative to materials such as polyester Material, rigidity is strong, and increasing pre-setting pressure can guarantee that 5 cord of carcass is sufficiently unfolded before contacting with composite members, avoids because not filling Dividing to unfold causes body cord to be bent, and forms substandard product.In addition, 2-5s is inflated in carcass drum 10, when pre-setting with stabilization Inflate effect.
When 5 anti-package of carcass, counter-wrapping rod 11 can effectively be realized to tyre steel wire carcass in pressure not less than 3.5bar Anti-package, the problems such as guaranteeing, the bead separation not firm without anti-package in initial turn-up process；Meanwhile giving interface unit certain precompressed Power provides good rolling condition for next rolling.In addition, rotation pressure roller is after anti-package with rolling pressure 2-3bar's Under the conditions of, it is rolled since the bottom of rim of the mouth to 3 endpoint of sidewall for terminal, to improve anti-package quality.
Embodiment 5: as shown in figure 9, the steel wire carcass UHP that the present invention also provides a kind of as described in above-mentioned any embodiment The manufacturing process of tire, including severing technique and moulding process,
Severing technique include lead out, severing, connector；
The severing includes: that fabric clamp pushes down wirecord fabric, then by rectangle hilt steel wire cord fabric cutting；The rectangle Knife includes upper and lower two rectangle cut-off knives；The rectangle knife knife face is alloy knife face；The rectangle knife knife face Rockwell hardness is HRC28-HRC45；Upper and lower two rectangle cut-off knife horizontal clearances are less than 1.5；
The connector includes: that the wirecord fabric after severing is turned to by magnet holder absorption, is transported to splicing apparatus On spliced；Feeding and the gap passed between material are adjusted to 1.5-2.5mm, upper and lower splicer suture pressure adjust to 0.15-0.25Mpa；
Moulding process includes: 5 fitting of liner layer 6 and carcass, buckle ring, 5 anti-package of carcass, anti-package pressing, tire bead cloth and sidewall 3 Fitting, fetus molding；
Liner layer 6 and the fitting of carcass 5 include the fitting of liner layer 6, the fitting of steel wire carcass 5；Wherein steel wire carcass 5 fitting and it is complete After connector, lower compression roller rising touches steel wire carcass 5, and keeps pressure in 1-2bar, and carcass drum 10 is with 600-800mm/s Speed rotation, lower compression roller carries out translation rolling with the speed of 5-30mm/s, from 5 middle position of steel wire carcass to 10 endpoint of carcass drum Pressure.
Severing process cuts steel wire, is (the class realized by the mutual shearing steel cord of upper and lower two choppers in fact It is similar to scissors), steel wire line footpath is thicker, and the rigidity of steel wire is big, is conducive to cut；Conversely, then difficult；Difference process is to steel wire when molding The requirement of cord is different, and when being 5 connector of carcass first, 5 connector of carcass is to carry out carcass 5 by dedicated 5 stitching unstrument of carcass Docking (be similar to zipper)；The line footpath of all-steel cord is thicker, and rigidity is bigger, easier connector, conversely, being then not easy connector；It should Requirement in process with severing to steel wire is consistent；Secondly, anti-package process for steel wire line footpath and rigidity requirement then on the contrary, line footpath Thicker, rigidity is bigger, and bending stiffness is also higher, and anti-package is more difficult, while after anti-package, and the resilience of steel wire can allow steel wire carcass 5 With the equal components delamination of triangle rubber 42, defective products is formed；And steel wire line footpath is thinner, rigidity is smaller, and bending stiffness is lower, easier to be anti- Packet, fetus resting period is longer, is more conducive to the stabilization of molding fetus quality.
Requirement in comprehensive severing process, 5 connector process of carcass and anti-package process to all-steel cord, in order to improve tire at The comprehensive performance of type, the line footpath for 5 all-steel cord of carcass selected in the present embodiment is in 0.8mm or less；And 5 all-steel cord of carcass Line footpath in 0.8mm hereinafter, will cut highly difficult, production stability is not high, automatic production is difficult to realize, but if using line The all-steel cord of diameter 0.8mm or more is as carcass 5, this meeting of production liter is very high, and anti-package is difficult, and causes properties of product superfluous, Simultaneously as stiffness of steel cord is big, fatigability and comfort will be very poor, influence PCR product performance.
The wirecord fabric that all-steel cord is worked out in the present embodiment, the line footpath of all-steel cord is in 0.8mm or less；This Embodiment provides a kind of severing technique of the line footpath in 0.8mm wirecord fabric below of all-steel cord, to line footpath 0.8mm's When the wirecord fabric that all-steel cord is constituted carries out severing, selecting knife face Rockwell hardness is that the rectangle knife of HRC28-HRC45 is cut out Disconnected, effective guarantee notch is smooth；Preferably, the rectangle knife selects the titanium alloy cut-off knife of Rockwell hardness HRC30.Select titanium alloy The reason of cut-off knife is: titanium alloy has very high intensity, tensile strength 686-1176MPa, and density is only steel 60% or so；Hardness is higher；Elasticity modulus is low, the half of about common steel knife；Titanium alloy cut-off knife is answered in wirecord fabric is cut With having the following prominent advantages: that deformation coefficient is small, deformation coefficient is less than or close to 1, and sliding friction is significantly on knife face for steel wire Increase, enhancing cuts effect；Shearing force on unit area is big, since the contact length of steel wire and knife face is extremely short, contact unit Shearing force on area greatly increases, and ensure that cutting quality.In addition in the present embodiment when severing, upper and lower two rectangles Cut-off knife horizontal clearance is less than 1.5；Cutting for unit area cord can be increased by controlling upper and lower two rectangle cut-off knives horizontal clearance Shear force guarantees that all-steel cord is smoothly cut, and notch is smooth；In order to avoid causing cord notch flash, product quality is influenced.Furthermore it connects When head, feeding and the gap passed between material are adjusted to 1.5-2.5mm, and upper and lower splicer suture pressure is adjusted to 0.15- 0.25Mpa；With feeding when top connection and pass gap between material control can effective control joint quality, avoid dilute line, doubling Problem occurs, and influences product dynamic balancing, uniformity qualification rate.The control of suture pressure sutures all-steel cord connector smoothly, and And the arrangement of joint all-steel cord is uniformly, does not there is dilute line, doubling and other issues.
Molding machine anti-package uses the anti-package of two kinds of forms at present, and one is use capsule anti-package, the ratio of capsule anti-package anti-package It is more uniform, but the pressure of anti-package is small；Therefore, there is the problem of steel wire rebound, bead separation, easily so as to cause the storage week of fetus Phase is short.
The present embodiment provides in a kind of moulding process, as shown in figure 9, the moulding process includes: that liner layer 6 and carcass 5 paste Conjunction, buckle ring, 5 anti-package of carcass, anti-package pressing, tire bead cloth and the fitting of sidewall 3, fetus molding；Liner layer 6 and the fitting of carcass 5 include The fitting of liner layer 6, steel wire carcass 5 are bonded；After wherein steel wire carcass 5 is bonded and completes connector, increase rolling step；In addition under When pressure roller rolls steel wire carcass 5, carcass drum 10 is rotated with the revolving speed of 600-800mm/s, is pushed roller pressure and is maintained at 1- 2bar, and the speed of 5-30mm/s carries out translation rolling from 5 middle position of steel wire carcass to 10 endpoint of carcass drum；The above rolling step The gas between carcass 5 and inner liner can be effectively discharged in rapid and rolling parameter setting, and the bubble rate of fetus reduces by 85% or more, The artificial dazzling labor intensity for repairing fetus is substantially reduced, fetus presentation quality greatly promotes.
Wherein when carrying out the fitting of PA component 15, the fitting of strengthening course 44 and the fitting of steel wire carcass 5, one component of every fitting, Carcass drum 10 rotates an angle, on the one hand the connector misfit of each component is improved the integral strength of tire, on the other hand The weight distribution of balanced tire.
Further, the buckle ring includes the crawl of finger-type piece 12 and 13 buckle ring of bead ring；Its finger-type piece 12 grabs steel wire tire The time of body 5 is 2-4s；When 13 buckle ring of bead ring, the dead time is 1-2s when bead ring 13 is moved to designated position；
5 anti-package of carcass includes that reverse-wrapped capsule 14 is inflated；Wherein the inflation of reverse-wrapped capsule 14 is specially that reverse-wrapped capsule 14 inflates 2- 4s, pressure are maintained at 3.5-4.5bar；After 14 anti-package of reverse-wrapped capsule stagnates 2-4s afterwards in place, reverse-wrapped capsule 14 is deflated；
Anti-package pressing includes rolling；Wherein rolling is specially that lower compression roller rising touches steel wire carcass 5, and pressure is kept to exist 2-3bar, carcass drum 10 are rotated with the speed of 600-800mm/s, and lower compression roller is with the speed of 10-30mm/s, by 10 end of carcass drum Point to steel wire carcass anti-package endpoint 51 is rolled.
In order to which the resting period for further avoiding occurring fetus is short, easily there is the problem of steel wire rebound, bead separation, this implementation Example has carried out following limitation to buckle ring, 5 anti-package of carcass and anti-package process for pressing.
Buckle ring includes that finger-type piece 12 grabs in the embodiment；The time that its finger-type piece 12 grabs steel wire carcass 5 is 2-4s；Button When enclosing 13 buckle ring of disk, the dead time is 1-2s when bead ring 13 is moved to designated position, and the setting of the above buckle ring time can have Effect guarantees that, by wire loop accurate positioning, wire loop completely attaches to carcass cord 5, is closely knit；
When reverse-wrapped capsule 14 is inflated in 5 turn-up process of carcass, reverse-wrapped capsule 14 inflates 2-4s, and pressure is maintained at 3.5- 4.5bar；After 14 anti-package of reverse-wrapped capsule stagnates 2-4s afterwards in place, reverse-wrapped capsule 14 is deflated；The setting of above anti-package time and pressure It can ensure the compaction rate of wire loop and steel wire carcass at anti-package quality, especially rim of the mouth, extend fetus resting period.
The anti-package pressing includes rolling；Wherein rolling is specially that lower compression roller rising touches steel wire carcass 5, and keeps pressing Power is rotated in 2-3bar, carcass drum 10 with the speed of 600-800mm/s, and lower compression roller is with the speed of 10-30mm/s, by carcass drum 10 endpoints to steel wire carcass anti-package endpoint 51 is rolled.The setting of pressure and revolving speed when the above anti-package rolls can have Gas between effect discharge carcass 5 and inner liner, the bubble rate of fetus reduce by 85% or more, substantially reduce and artificial dazzling repair fetus Labor intensity, fetus presentation quality greatly promotes.
In addition, fetus molding includes low inflation, transmitting ring aid composite members are moved to right after low inflation, and PU drum is contracted to Sizing bit width, head are filled with high pressure；Wherein low inflation, low inflation pressure is in 0.3-0.8bar；Head is filled with high pressure 1- 1.3bar。
Concrete case and performance test
In order to illustrate steel wire carcass UHP tire bead 4 provided by the embodiment of the present invention in a manner of concrete case and show There is the performance comparison of technology tyre bead 4, case 1, comparison leading case 1 and correlated performance part of detecting presented below are as follows:
Case 1
It selects 245/45ZR18 specification and carries out developmental research, 5 casing ply of steel wire carcass uses 3+9*0.175NT steel wire, pressure Prolonging density is 60EPD, and calendering is with a thickness of 1.8mm, and it is 480mm that 5 casing ply 2 of steel wire carcass, which designs width, it is ensured that steel wire carcass The drop point site of anti-package endpoint 51 is protected at 45 vertical range 3mm of lower extreme point lower than wheel rim；
Thickening film 43 uses shore hardness for 69 sizing material, and film stock thickness 0.7mm, 80 mm of film width viscosify film Outer point 432 and 51 edging of steel wire carcass anti-package endpoint attach, and are higher than on triangle rubber after 431 anti-package of endpoint on the inside of thickening film 422 vertical range 5mm of endpoint；
Triangle rubber 42 use shore hardness for 90 sizing material, design height 35mm, steel wire after 5 casing ply anti-package of steel wire carcass 51 drop point of carcass anti-package endpoint is lower than 422 vertical range 13mm of triangle rubber upper extreme point, meanwhile, three at steel wire carcass anti-package endpoint 51 Angle glue 42 with a thickness of 3mm；
The product uses nylon66 fiber material as strengthening course 44, rolls thickness 1.15mm, and 50 ° of severing angle, severing width 55mm, single layer attach, and are positioned as 215mm in attaching, are positioned as 270mm outside, it is ensured that anchor point 441 is lower than steel wire under strengthening course 15mm at carcass anti-package endpoint 51, anchor point 442 is higher than 15mm at triangle rubber upper extreme point 422 on strengthening course.
Compare case 1
5 passenger tire sub-port structure of steel wire carcass is identical as 5 passenger tire sub-port structure of steel wire carcass provided by the invention, The difference is that: thickening film 43 is not provided in sub-port structure.
The present invention has reached and has changed by increasing a kind of thickening film 43 between 5 casing ply of steel wire carcass and wire loop 41 Shearing between kind 5 casing ply of wire loop 41 and steel wire carcass, while adhesiveness is promoted, extend the mesh of green tire embryo resting period 's.Wherein, rim of the mouth just occurs after 245/45R18 (steel wire carcass) fetus resting period 16-20h in case 1 of the present invention to come to nothing Problem, and 245/45R18 (steel wire carcass the does not increase thickening film) fetus for comparing not set thickening film 43 in case is deposited It puts 2-6h rim of the mouth occurs and come to nothing phenomenon.
Lathe test:
To the steel wire carcass and existing 245/45R18 polyester carcass using case 1, the sub-port structure for comparing case Lathe test is carried out, test result such as table 1:
1 carcass lathe test result of table
It is obtained by lathe test analysis, the relatively normal half steel tire of steel wire carcass passenger tire, indices are It is promoted, the design of steel wire carcass passenger tire sub-port structure is reasonable, feasible, and the product of the invention can be suitably used for various road conditions, service life It improves and safety is higher.
In order to illustrated in a manner of concrete case the structure of steel wire carcass UHP tire provided by the embodiment of the present invention and with The performance comparison of existing tire, case 2-4 and correlated performance part of detecting presented below are as follows:
Case 2
205/45ZR17 88W is selected, which is single layer 1500D/2 polyester cord, passes through one layer of steel Silk carcass 2*0.25UT replaces single layer 1500D/2 polyester cord, and specific material information is shown in Table 2.
2 case of table, 2 steel wire carcass material information
Indoor test
2 tire indoor test of case the results are shown in Table 3:
3 case of table, 2 tire indoor test result
Outdoor evaluation test
Outdoor evaluation test the results are shown in Table 4.
Evaluation test result outside 4 case of table, 2 tire room
Conclusion: by carrying out subjective assessment test comparison as a result, steel wire carcass to steel wire carcass UHP and polyester carcass UHP Manufactured UHP tire comfort and it is handling there is greater advantage, while it is dry brake with noise in terms of performance also own It improves.
Case 3
245/45ZR20 103Y is selected, which is 2 layers of 1500D/2 polyester cord, passes through one layer of steel Silk carcass 0.19+5*0.19NT replaces 2 layers of 1500D/2 polyester cord, waits cords intensity, specific material information is shown in Table 5.
5 case of table, 3 steel wire carcass material information
Indoor test
3 tire indoor test of case the results are shown in Table 6:
6 case of table, 3 tire indoor test result
Outdoor evaluation test
Outdoor evaluation test the results are shown in Table 7.
Evaluation test result outside 7 case of table, 3 tire room
Conclusion: by carrying out subjective assessment test comparison as a result, steel wire carcass to steel wire carcass UHP and polyester carcass UHP Manufactured UHP tire comfort and it is handling there is greater advantage, while it is dry brake with noise in terms of performance also own It improves.
Case 4
Select: 275/45R20 110W, the UHP product matrix skeleton are two layers of 1500D/2 polyester cord, pass through one layer of steel Silk carcass 3+9*0.175T replaces two layers of 1500D/2 polyester cord, and cords intensity is waited to substitute, and specific material information is shown in Table 8.
8 case of table, 4 steel wire carcass material information
Indoor test
4 tire indoor test of case the results are shown in Table 9.
9 case of table, 4 tire indoor test result
Outdoor evaluation test
Outdoor evaluation test the results are shown in Table 10.
Evaluation test result outside 10 case of table, 4 tire room
Conclusion: steel wire carcass UHP tire compares polyester carcass UHP tire, in comfort, handling and road holding side Face, performance is more excellent, while noise level is also substantially reduced.
Illustrate the manufacturing process of steel wire carcass UHP tire described in the embodiment of the present invention in a manner of concrete case below.
Case 5
The moulding process step of steel wire carcass passenger tire:
The present embodiment selects 245/45ZR18 specification to carry out developmental research, and carcass 5 uses 3+9*0.175NT steel wire, calendering Density is 60EPD, is rolled with a thickness of 1.8mm；Use nylon66 fiber material as strengthening course 44, rolls thickness 1.15mm, severing angle 50 ° of severing width 55mm are spent, is positioned as 215mm in attaching, is positioned as 270mm outside.
The one-stage building process step of 5 passenger tire of steel wire carcass: fitting, pre-setting, 5 anti-package of carcass, is unloaded at buckle ring Tire.Wherein fitting includes that the fitting of PA component 15, the fitting of strengthening course 44 and steel wire carcass 5 are bonded.One-stage building process step tool Body is as follows:
1. PA component 15 is bonded (Fig. 1): bulk supply template is stretched out, and carcass drum 10 rotates to 180 ° ± 10 °, in the present embodiment 180 ° of rotation, conveyer belt synchronous rotary, PA component 15 (liner sidewall composite members) leading portion are labelled in carcass drum 10 at this time, pressure roller Decline rotation compact material head, carcass drum 10 is rotated, and butt joint position carries out auto-stitching after PA component 15 is bonded；
2. strengthening course 44 is bonded (Fig. 2): strengthening course 44 is adhered in advance on tire bead cloth laminating apparatus, and carcass drum 10 rotates extremely 135 ° ± 10 °, 135 ° are rotated in the present embodiment.Tire bead cloth laminating apparatus is moved to designated position, and sticking machine is stretched out close to carcass Drum 10, carcass drum 10 is rotated strengthening course 44 is conformed in carcass drum 10 after, connector carry out auto-stitching；
3. steel wire carcass 5 is bonded (Fig. 3): bulk supply template is stretched out, and carcass drum 10 rotates to 90 ° ± 5 °, in the present embodiment It is rotated by 90 °.Conveyer belt synchronous rotary, 5 leading portion of steel wire carcass are labelled in carcass drum 10, and thousand layers of roller decline compress material, carcass drum 10 are rotated, and thousand layers of roller lift after steel wire carcass 5 is bonded, and carry out automatic sewing connector to carcass 5；
To solve the air bubble problem between carcass 5 and inner liner, increase by 5 rolling step of carcass: rear pressure roller extend out to specified Position compresses carcass 5, and carcass drum 10 is rotated with the revolving speed of 80 ± 10r/min, and rear platen pressure is maintained at 2-2.5bar, and Translation rolling is carried out outward according to the lateral velocity of the 5-15mm/sec set, until rolling at 5 endpoint of carcass terminates；Pass through The gas between carcass 5 and inner liner can be effectively discharged in the above rolling step, and the bubble rate of fetus reduces by 85% or more, significantly The artificial dazzling labor intensity for repairing fetus is reduced, fetus presentation quality greatly promotes.
Carcass drum 10 is rotated in the present embodiment to be rotated under conditions of 80r/min, rear platen pressure is maintained at 2bar, And translation rolling is carried out outward according to the lateral velocity of the 10mm/sec set, until roll-in terminates at 5 endpoint of carcass.
4. buckle ring (Fig. 4): carcass drum 10 rotates to 180 ° ± 10 ° of 4 angle of tyre bead, and tyre bead 4 transmits ring and is moved to carcass 10 designated position of drum, tyre bead 4 is locked in the rise of tyre bead locking block, and 4 latch segment high pressure of tyre bead is maintained at 5.5bar or more, this reality It applies tyre bead locking block high pressure in example and keeps 5.5bar；Tyre bead 4 transmits ring opening and is moved to step movement under the other side prepares；Bead lock Tight block high pressure, which is maintained at 5.5bar or more, effectively tyre bead 4 to be accurately positioned, and when molding is not easy to shift, at the same allow tyre bead 4 with Steel wire carcass passes through the effect of thickening film, and fitting is closer at rim of the mouth.
5. pre-setting (Fig. 5): carcass drum 10 rotates to 0 ° ± 10 ° of 1 angle of crown, and 1 holding ring of crown is moved to carcass Drum 10 forms position, and carcass drum 10 is contracted to pre-setting position while carcass drum 10 is inflated expansion with the pressure of 1.1-1.3bar, 2-5s is inflated in carcass drum 10, aid block unclamps after the expansion completely of steel wire carcass 5, and composite members and 5 cord of steel wire carcass are complete Contact, tyre surface pressure roller stretch out in the middle part of pressing tyre surface, and rotation pressure roller carries out rotation rolling to 1 shoulder of crown and alar part by original parameter； Carcass drum 10 is inflated expansion with the pressure of 1.3bar in the present embodiment, inflates 2s in carcass drum 10.Carcass drum 10 is with 1.1- The pressure of 1.3bar, which is inflated expansion, can effectively ensure that composite members and steel wire have the full contact of 5 cord of carcass, and connect Closely；To improve 5 bond strength of carcass.Because steel wire is relative to materials such as polyester, rigidity is strong, and increasing pre-setting pressure can protect Card 5 cord of carcass is sufficiently unfolded before contacting with composite members, and body cord is bent caused by avoiding because of insufficient unfold, and formation does not conform to Lattice product.
6. 5 anti-package of carcass (Fig. 6): mechanical counter-wrapping rod 11 is anti-in the present embodiment under conditions of pressure is not less than 3.5bar Packet bar 11 is 3.5bar in pressure；Counter-wrapping rod 11 is propped up and by components such as sidewall 3, carcass 5, strengthening courses 44, opens from bead Beginning is pressure bonded to the stopping of 3 end of sidewall.Do not occur rim of the mouth to guarantee that steel wire anti-package endpoint is close, during fetus storage and come to nothing etc. to ask Topic, pressure roller rolls program after adjustment, under conditions of rotation pressure roller is with rolling pressure 2-3bar, to sidewall 3 since the bottom of rim of the mouth Endpoint is that terminal is rolled.Rotation pressure roller is 2.5bar with rolling pressure in the present embodiment.By the above rolling process, make anti- Packet endpoint is tightly combined, so that it is guaranteed that there is not the problems such as rim of the mouth is come to nothing during fetus storage.Counter-wrapping rod 11 is not low in pressure It can effectively be realized to tyre steel wire carcass anti-package in 3.5bar, guarantee, the bead separation not firm without anti-package in initial turn-up process The problems such as；Meanwhile giving interface unit certain precompression, good rolling condition is provided for next rolling.
7. unloading tire: grip block accommodates crown 1, and tyre bead locking block falls, and 2 capsule of tire shoulder exhaust, middle drum is stopped the supple of gas or steam, carcass drum 10 Sucker spaced position is stretched to, grip block aid fetus is moved to interposition and discharges.
It is had the advantages that using the above moulding process
Using the above moulding process, the high production efficiency of steel wire carcass UHP tire, the productive temp of every tires at this stage In 2min-2.5min, class, which produces, reaches 190-240 item/class；
Using the above moulding process, fitting effect is good, and steel wire carcass UHP tire quality comprehensive qualified rate reaches 99.6%, It is horizontal to reach factory's internal control, quality index is better than the common half steel tire product in part.
Case 6
The moulding process of 5 passenger tire of steel wire carcass is specially secondary method moulding process:
The present embodiment selects 245/45ZR18 specification and carries out developmental research, and carcass 5 uses 3+9*0.175NT steel wire, calendering Density is 60EPD, is rolled with a thickness of 1.8mm；Use nylon66 fiber material as strengthening course 44, rolls thickness 1.15mm, severing angle Spend 50 ° of severing width 55mm.
The secondary method moulding process step of 5 passenger tire of steel wire carcass: 5 fitting of liner layer 6 and carcass, buckle ring, carcass 5 are anti- Packet, anti-package pressing, tire bead cloth and the fitting of sidewall 3, fetus molding.Wherein liner layer 6 and the fitting of carcass 5 include that liner layer 6 pastes It closes, steel wire carcass 5 is bonded；Tire bead cloth and the fitting of sidewall 3 include tire bead cloth fitting, the fitting of sidewall 3.Secondary method moulding process step It is specific as follows:
1. liner layer 6 is bonded: step on automatic step floor push, carcass drum 10 is rotated to 0 ° ± 10 °, rotated in the present embodiment to 0°；Liner layer feed frame stretches out, and liner layer 6 is affixed in carcass drum 10 and (is bonded according to position line), steps on automatic step floor push, Carcass drum 10 rotates 1 week, and 6 cut-off knife of liner layer carries out fixed length and cuts, and 6 feed frame of liner layer is retracted, and 6 connector of liner layer is simultaneously rolled Pressure.
2. steel wire carcass 5 is bonded: stepping on automatic step floor push, carcass drum 10 is rotated to 90 ° ± 10 °, revolved in the present embodiment Go to 90 °；5 feed frame of steel wire carcass is passed out simultaneously, and tyre steel wire carcass is affixed on liner layer 6 according to position line, is stepped on automatic Floor push is walked, carcass drum 10 rotates a circle, and carries out connector to steel wire carcass 5 using automatic suturing machine；It steps on and walks foot-operated open automatically It closes, lower compression roller rising touches steel wire carcass 5, and keeps pressure in 1-2bar, and carcass drum 10 is revolved with the speed of 600-800mm/s Turn, lower compression roller carries out translation rolling with the speed of 5-30mm/s, from 5 middle position of steel wire carcass to 10 endpoint of carcass drum；Pass through The gas between carcass 5 and inner liner can be effectively discharged in the above rolling step, and the bubble rate of fetus reduces by 85% or more, The artificial dazzling labor intensity for repairing fetus is substantially reduced, fetus presentation quality greatly promotes.
Lower compression roller rising touches steel wire carcass 5 in the present embodiment, and keeps pressure in 1.5bar, carcass drum 10 with The speed of 600mm/s rotates, and lower compression roller is carried out with the speed of 10mm/s, from 5 middle position of steel wire carcass to 10 endpoint of carcass drum Translation rolling.
3. 41 buckle ring of wire loop: automatic step floor push, the rotation of carcass drum 10 to specified angle are stepped on, finger-type piece 12 stretches out, Bead ring 13 on headstock, tailstock is mobile, and finger-type piece 12 grabs steel wire carcass 5 and is internally bent, crawl time 2-4s, headstock, Bead ring 13 on tailstock continues to move to, until wire loop 41 is buckled on steel wire carcass 5,13 dead time of bead ring 1-2s, button Disk 13 is enclosed to retreat；Finger-type piece 12 grabs time 2.5s, 13 dead time of bead ring 1.2s in the present embodiment.When finger-type piece 12 grabs Between 2-4s, and dead time 1-2s can effectively ensure that wire loop accurate positioning, wire loop behind bead ring 13 to designated position It is completely attached to carcass cord 5, is closely knit.
4. 5 anti-package of carcass: reverse-wrapped capsule 14 inflates 2-4s, and pressure is maintained at 3.5-4.5bar, and movement pushes away on headstock, tailstock Dynamic bead ring 13 squeezes reverse-wrapped capsule 14 and moves inward, the inside deformation of 14 extruded cords carcass of reverse-wrapped capsule 5, reverse-wrapped capsule 14 After anti-package stagnates 2-4s afterwards in place, reverse-wrapped capsule 14 is deflated, while headstock, tailstock translate outward, and capsule restores to complete anti-package mistake Journey.14 pressure of reverse-wrapped capsule is maintained at 3.5bar in the present embodiment, after 14 anti-package of reverse-wrapped capsule stagnates 3s afterwards in place, reverse-wrapped capsule 14 deflate.Reverse-wrapped capsule 14 inflates 2-4s, and the pressure of 3.5-4.5bar is kept when inflation；And 14 anti-package of reverse-wrapped capsule arrives Anti-package quality can effectively be ensured by deflating again after stagnation 2-4s behind position, enhance the combination stability of carcass 5.The above anti-package time Setting with pressure can ensure the compaction rate of wire loop and steel wire carcass at anti-package quality, especially rim of the mouth, extend fetus Resting period.
5. anti-package presses: stepping on automatic step floor push, lower compression roller rising touches steel wire carcass 5, and keeps pressure in 2- 3bar, carcass drum 10 are rotated with the speed of 600-800mm/s, and lower compression roller is with the speed of 10-30mm/s, extremely by 10 endpoint of carcass drum Steel wire carcass anti-package endpoint 51 is rolled；In the present embodiment, pushing roller pressure is 2.5bar, revolving speed 20mm/s；Carcass drum 10 revolving speeds are 800mm/s.The pressure of lower compression roller is revolved in 2-3bar, carcass drum 10 with the speed of 600-800mm/s when anti-package presses Turn, lower compression roller, which carries out rolling with the speed of 10-30mm/s, can effectively improve pressing effect, and the combination of enhancing carcass 5 is stablized Property.The gas between carcass 5 and inner liner, tire can be effectively discharged in the setting of pressure and revolving speed when the above anti-package rolls The bubble rate of embryo reduces by 85% or more, substantially reduces the artificial dazzling labor intensity for repairing fetus, and fetus presentation quality greatly promotes.
6. tire bead cloth is bonded: stepping on automatic step floor push, carcass drum 10 is rotated to 215 ° ± 10 °, rotated in the present embodiment To 215 °；Strengthening course feed frame stretches out, and strengthening course 44 is bonded according to position line, rolls 44 connector of strengthening course；
7. sidewall 3 is bonded: step on automatic step floor push, carcass drum 10 is rotated to 270 ° ± 10 °, rotated in the present embodiment to 270°；Sidewall feed frame stretches out, and sidewall 3 is bonded according to position line, rolls 3 connector of sidewall, steps on automatic step floor push, Lower compression roller and rear pressure roller stretch out simultaneously, roll to sidewall 3 and bead；
8. fetus forms: one section of fetus is inserted in, automatic step floor push is stepped on, head, which separates, extremely stretches position position width, Low inflation, low inflation pressure are transmitted ring aid composite members and are moved to right in 0.3-0.8bar, and PU drum is contracted to sizing bit width, Head is filled with high pressure 1-1.3bar, and after composite members are completely attached to one section of fetus, transmitting ring is opened, moved to left, PU drum rotation, crown 1 follow an example pressure roller, rear pressure roller respectively rolls 1 center of crown, shoulder, and rear each section of pressure roller resets, and PU drum, which shrinks to deflate, to carry out Unload tire.
The present embodiment mesolow the blowing pressure is transmitted ring aid composite members and is moved to right, PU drum is contracted to sizing position in 0.4bar Width, head are filled with high pressure 1.2bar.
Using the moulding process, solve steel wire carcass 5 applied on passenger tire present in bead separation, sidewall 3 is split The problems such as mouth, 5 passenger tire quality comprehensive qualification rate of steel wire carcass is made to reach 99.6%, reach factory's internal control level, quality refers to Mark is better than the common half steel tire product in part.
Case 7
The present embodiment selects 245/45R18 specification to be specifically described, and the carcass 5 of the tire uses 3+9*0.175NT The all-steel cord of structure, steel wire diameter 0.728mm, calendering density are 60EPD, and calendering designs with a thickness of 1.8mm, steel wire carcass 5 Width is 480mm；
The all-steel cord line footpath only has 0.728mm, is in addition NT all-steel cord, all-steel cord Fracture Force is low, all-steel cord Rigidity itself is low, and the overall merit all-steel cord is thin and soft, cannot achieve the all-steel cord using conventional cutting process It cuts and connector；
By comparing stiffness Analysis, it is able to achieve the severing work of the wirecord fabric constituted to the following all-steel cord of diameter 0.8mm Skill need to meet following four condition:
1. cut-off knife knife face selects the titanium alloy or other alloy knife faces between Rockwell hardness HRC28-HRC45, the present embodiment In be directed to this severing 3+9*0.175NT all-steel cord, select Rockwell hardness HRC30 titanium alloy cut-off knife；
2. the severing technique requires gap between cut-off knife to control within 1.5 (0.015mm)；It can not because gap is excessive All-steel cord smoothly is cut, gap is too small to be easy to damage cut-off knife, influences service life；This severing 3+9* is directed in the present embodiment 0.175NT all-steel cord adjusts in cut-off knife gap to 1.5；All-steel cord can smoothly be cut, and notch it is smooth, without flash；
3. the severing technique requires to control feeding in automatic joint and pass the gap of 5 head and the tail of steel wire carcass between material to exist In the range of 1.5-2.5mm；It is directed to this severing 3+9*0.175NT all-steel cord in the present embodiment, by feeding and passs material carcass 5 Between gap adjust to 2.2mm；Feeding is controlled when automatic joint and passs the gap of 5 head and the tail of steel wire carcass between material in 1.5- In the range of 2.5mm can effective control joint quality, avoid dilute line, doubling problem occurs, and influences product dynamic balancing, uniformity Qualification rate.
4. the severing technique requires to need to adjust upper and lower splicer suture pressure to 0.15- in automatic joint 0.25MPa；It is directed to this severing 3+9*0.175NT all-steel cord in the present embodiment, upper and lower splicer suture pressure is adjusted To 0.2MPa.When automatic joint, upper and lower splicer suture pressure is adjusted to 0.15-0.25MPa, stitches all-steel cord connector smoothly It closes, and the arrangement of joint all-steel cord is uniformly, does not there is dilute line, doubling and other issues.
In the case where meeting four conditions required for the above severing technique, the present embodiment to diameter 0.8mm or less All-steel cord constitute steel wire cord fabric cutting technique include lead out, severing, connector；Wherein severing includes the following steps (3), described Connector includes the following steps (4), specific:
(1) the steel wire curtain yardage roll after rolling is fixed on cutting machine unwinding equipment with crane, is led out by traction roller；
(2) 1-2 root all-steel cord is respectively cut away on wirecord fabric both sides, wirecord fabric side end is made to expose fresh surface, work feed Length control device sends wirecord fabric on the rectangle knife platform of cutting device；
(3) fabric clamp pushes down wirecord fabric, and with rectangle hilt steel wire cord fabric cutting；Wherein the rectangle knife knife face is The titanium alloy cut-off knife knife face of Rockwell hardness HRC30；The gap of rectangle knife is adjusted to 1.5；
(4) wirecord fabric after severing carries out 90 ° of steerings by magnet holder absorption, is transported on splicing apparatus and is spelled It connects, feeding and the gap passed between material carcass 5 are adjusted to 2.2mm, and upper and lower splicer suture pressure is adjusted to 0.2MPa；It spells Two groups of umbrella shape wheels are moved in zip mode to both sides along the seam of two panels wirecord fabric when connecing, and are spliced, then carry out gluing sheet Or it bound edge, batches.
It is had the advantages that using the above cutting process
It, can be when progress wirecord fabric be cut, it is ensured that diameter is lower than 0.8mm or less steel wire curtain using the above cutting process Smoothly the cutting of line, connector, all-steel cord can smoothly cut, and notch it is smooth, without flash；Connector smoothly sutures, and connects All-steel cord arrangement uniformly, does not there is dilute line, doubling and other issues at head；In addition, the unlimited NT, HT of all-steel cord type, ST, UT, MT can smooth severing, for steel wire carcass 5 on passenger tire application carry out basis；
Cutting machine can realize cutting for more kind all-steel cords, and production efficiency not because steel wire kind is different and It has an impact.

Claims (12)

1. steel wire carcass UHP tire, tire longitudinal direction section includes the crown (1) positioned at upper outside, is connected with the crown (1) Tire shoulder (2), the sidewall (3) being connected with the tire shoulder (2), the tyre bead (4) being connected with the sidewall (3) lower part, and being located at Carcass (5) on the inside of tire section, the carcass (5) includes carcass ply, and the carcass ply is made of single layer of wires cord, The all-steel cord includes more steel wires, which is characterized in that the strength index of the carcass ply be 30000-50000N* root/ Dm, the Fracture Force of the all-steel cord are 350-850N, and the bending stiffness of the all-steel cord is 70Nmm2-130Nmm2, described For the diameter of all-steel cord between 0.5mm-0.8mm, the steel wire diameter is less than 0.3mm.
2. steel wire carcass UHP tire according to claim 1, which is characterized in that the tyre bead (4) includes wire loop (41), it is coated with triangle rubber (42) on the circumference of the wire loop (41), the triangle rubber (42) is from triangle rubber lower extreme point (421) It radially extends to triangle rubber upper extreme point (422), the carcass (5) is around the wire loop (41) bottom reversed to sidewall (3) After radially extend to carcass anti-package endpoint (51), thickening film is equipped between the carcass (5) and the triangle rubber (42) (43), the carcass anti-package endpoint (51) is connected by the thickening film (43) with the triangle rubber (42).
3. steel wire carcass UHP tire according to claim 2, which is characterized in that the thickening film (43) includes being located at Endpoint (431) on the inside of thickening film on the inside of the triangle rubber (42), and it is located at the thickening film on the outside of the triangle rubber (42) The radial height of outer point (432), the thickening film inside endpoint (431) is higher than the triangle rubber upper extreme point (422) Radial height, the radial distance between the thickening film inside endpoint (431) and the triangle rubber lower extreme point (421) are not less than 5mm, the radial distance between the thickening film inside endpoint (431) and the triangle rubber upper extreme point (422) are not less than 10mm； The radial height of thickening film outer point (432) is not less than the radial height of the carcass anti-package endpoint (51).
4. steel wire carcass UHP tire according to claim 2, which is characterized in that the carcass (5) and the sidewall (3) Between be equipped with strengthening course (44), the lower end of the strengthening course (44) is located at anchor point (441) under strengthening course, the strengthening course (44) Upper end be located at anchor point (442) on strengthening course, the carcass anti-package endpoint (51), which is radially positioned under the strengthening course, to be positioned On point (441) and the strengthening course between anchor point (442)；Anchor point (441) and carcass anti-package end under the strengthening course Radial distance between point (51) is 10-20mm；The radial height of anchor point (442) is higher than the triangle rubber on the strengthening course The radial height of upper extreme point (422), on the strengthening course anchor point (442) and the triangle rubber upper extreme point (422) it is radial away from From greater than 10mm；The strengthening course (44) and tire circumference are in 0-55 ° of angle.
5. steel wire carcass UHP tire according to claim 4, which is characterized in that the diameter of the triangle rubber upper extreme point (422) It is higher than the radial height of the carcass anti-package endpoint (51), the triangle rubber upper extreme point (422) and the carcass anti-package to height The radial distance of endpoint (51) is greater than 10mm, the thickness with the triangle rubber (42) of carcass anti-package endpoint (51) connecting place Not less than 2mm, it is described thickening film (43) with a thickness of 0.5-2mm.
6. steel wire carcass UHP tire according to claim 5, which is characterized in that further include positioned at the sidewall (3) and with The connected wheel rim of wheel rim protects lower extreme point (45), between the carcass anti-package endpoint (51) and wheel rim protection lower extreme point (45) Radial distance be less than 15mm.
7. according to the described in any item steel wire carcass UHP tires of claim 2-4, which is characterized in that the triangle rubber upper extreme point (422) radial height be lower than the carcass anti-package endpoint (51) radial height, the triangle rubber upper extreme point (422) with it is described The radial distance of carcass anti-package endpoint (51) be greater than 10mm, it is described thickening film (43) with a thickness of 1.0-4.0mm.
8. steel wire carcass UHP tire according to claim 7, which is characterized in that be located at the wire loop (41) two sides Distance of the inner surface of the carcass (5) between carcass anti-package endpoint (51) is 2.0-5.0mm；Positioned at the steel wire Enclose (41) on the outside of the carcass (5) outer surface and the sidewall (3) outer surface at the carcass anti-package endpoint (51) it Between distance be 2.5-10mm.
9. the manufacturing process of steel wire carcass UHP tire according to claim 1-8, including severing technique and molding Technique, which is characterized in that
Severing technique include lead out, severing, connector；
The severing includes: that fabric clamp pushes down wirecord fabric, then by rectangle hilt steel wire cord fabric cutting；The rectangle knife packet Include upper and lower two rectangle cut-off knives；The rectangle knife knife face is alloy knife face；The rectangle knife knife face Rockwell hardness is HRC28- HRC45；Upper and lower two rectangle cut-off knife horizontal clearances are less than 1.5；
The connector includes: that the wirecord fabric after severing is turned to by magnet holder absorption, and it is enterprising to be transported to splicing apparatus Row splicing；Feeding and the gap passed between material are adjusted to 1.5-2.5mm, and upper and lower splicer suture pressure is adjusted to 0.15- 0.25Mpa；
Moulding process includes: fitting, buckle ring, pre-setting, carcass (5) anti-package, unloads tire；
The fitting includes PA component (15) fitting, strengthening course (44) fitting and steel wire carcass (5) fitting；Wherein steel wire carcass (5) after being bonded and completing connector, rear pressure roller extend out to designated position and compresses steel wire carcass (5), and carcass drum (10) is with 80 ± 10r/ The revolving speed of min is rotated, and rear platen pressure is maintained at 2-2.5bar, and according to set the lateral velocity of 5-15mm/sec to It is outer to carry out translation rolling, until rolling at carcass (5) endpoint terminates.
10. the manufacturing process of steel wire carcass UHP tire according to claim 9, which is characterized in that the buckle ring includes tire It encloses (4) latch segment and locks buckle ring；After wherein tyre bead (4) latch segment locks tyre bead (4), and keep tyre bead (4) latch segment high pressure In 5.5bar or more；
The pre-setting includes carcass drum (10) inflation；Wherein the carcass drum (10) is filled with the pressure of 1.1-1.3bar Gas；
Carcass (5) anti-package includes counter-wrapping rod (11) anti-package；When counter-wrapping rod (11) anti-package, the pressure of the counter-wrapping rod (11) is not Lower than 3.5bar；And rotation pressure roller keeps the rolling pressure of 2-3bar to be rolled after completing anti-package.
11. the manufacturing process of steel wire carcass UHP tire according to claim 1-8, including severing technique and at Type technique, which is characterized in that
Severing technique include lead out, severing, connector；
The severing includes: that fabric clamp pushes down wirecord fabric, then by rectangle hilt steel wire cord fabric cutting；The rectangle knife packet Include upper and lower two rectangle cut-off knives；The rectangle knife knife face is alloy knife face；The rectangle knife knife face Rockwell hardness is HRC28- HRC45；Upper and lower two rectangle cut-off knife horizontal clearances are less than 1.5；
The connector includes: that the wirecord fabric after severing is turned to by magnet holder absorption, and it is enterprising to be transported to splicing apparatus Row splicing；Feeding and the gap passed between material are adjusted to 1.5-2.5mm, and upper and lower splicer suture pressure is adjusted to 0.15- 0.25Mpa；
Moulding process includes: liner layer (6) and carcass (5) fitting, buckle ring, carcass (5) anti-package, anti-package pressing, tire bead cloth and tire Side (3) fitting, fetus molding；
Liner layer (6) and carcass (5) fitting include liner layer (6) fitting, steel wire carcass (5) fitting；Wherein steel wire carcass (5) pastes Merge after completing connector, lower compression roller rising touches steel wire carcass (5), and keeps pressure in 1-2bar, carcass drum (10) with The speed of 600-800mm/s rotates, and lower compression roller is with the speed of 5-30mm/s, from steel wire carcass (5) middle position to carcass drum (10) endpoint carries out translation rolling.
12. the manufacturing process of steel wire carcass UHP tire according to claim 11, which is characterized in that the buckle ring includes Finger-type piece (12) crawl and bead ring (13) buckle ring；The time that its finger-type piece (12) grabs steel wire carcass (5) is 2-4s；Bead ring (13) when buckle ring, the dead time is 1-2s when bead ring (13) is moved to designated position；
Carcass (5) anti-package includes reverse-wrapped capsule (14) inflation；Wherein reverse-wrapped capsule (14) inflation is specially reverse-wrapped capsule (14) 2-4s is inflated, pressure is maintained at 3.5-4.5bar；After reverse-wrapped capsule (14) anti-package stagnates 2-4s afterwards in place, reverse-wrapped capsule (14) it deflates；
The anti-package pressing includes rolling；Wherein rolling is specially that lower compression roller rising touches steel wire carcass (5), and keeps pressure In 2-3bar, carcass drum (10) is rotated with the speed of 600-800mm/s, and lower compression roller is with the speed of 10-30mm/s, by carcass drum (10) endpoint to steel wire carcass anti-package endpoint (51) is rolled.
CN201910560707.0A 2019-06-26 2019-06-26 UHP tyre with steel wire carcass and manufacturing process thereof Active CN110194028B (en)

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CN114347725A (en) * 2022-01-27 2022-04-15 青岛双星轮胎工业有限公司 Self-internal support tire suitable for whole train of passenger car and forming process thereof
CN114603897A (en) * 2022-05-07 2022-06-10 赛轮(东营)轮胎股份有限公司 Secondary forming process for load-carrying all-steel radial tire
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Publication number Priority date Publication date Assignee Title
CN114347725A (en) * 2022-01-27 2022-04-15 青岛双星轮胎工业有限公司 Self-internal support tire suitable for whole train of passenger car and forming process thereof
CN114347725B (en) * 2022-01-27 2022-12-16 青岛双星轮胎工业有限公司 Self-internal support tire suitable for whole train of passenger car and forming process thereof
WO2023061511A1 (en) * 2022-01-27 2023-04-20 青岛双星轮胎工业有限公司 Support rubber, and internal self-supporting tire suitable for whole series of passenger vehicles and forming process for internal self-supporting tire
CN114603897A (en) * 2022-05-07 2022-06-10 赛轮(东营)轮胎股份有限公司 Secondary forming process for load-carrying all-steel radial tire
CN114603897B (en) * 2022-05-07 2022-07-12 赛轮(东营)轮胎股份有限公司 Secondary forming process for load-carrying all-steel wire radial tire

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