CN102935724A - Giant tire retreading and repairing technology - Google Patents
Giant tire retreading and repairing technology Download PDFInfo
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- CN102935724A CN102935724A CN201110231707XA CN201110231707A CN102935724A CN 102935724 A CN102935724 A CN 102935724A CN 201110231707X A CN201110231707X A CN 201110231707XA CN 201110231707 A CN201110231707 A CN 201110231707A CN 102935724 A CN102935724 A CN 102935724A
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Abstract
Relating to the technical field of giant tire recycling, the invention provides a giant tire retreading and repairing technology, which consists of: subjecting a to-be-restored clean old tire to grinding on a grinder, then twining a rubber strip on the ground giant tire, engraving patterns meeting vehicle requirements on the twined giant tire by computer programming, and finally delivering the giant tire with engraved patterns into a vulcanizing tank to conduct vulcanizing. Specifically, the technological process falls into four stages: grinding, twining and rubbering, pattern engraving, and vulcanizing. The production line equipment for the giant tire retreading and repairing technology is composed of a giant tire grinding device, a giant tire retreading rubbering twining device, a giant tire pattern engraving device and a giant tire retreading vulcanizing device. The production line is suitable for retreading of 20.00R25-59/80R63 giant tires, and can maximumly retread tires with an outer diameter of 3.3m. In the invention, variable frequency transmission, digital display, a touch screen and industrial control computer program control are adopted to accomplish operation of the production line. The obtained product has stable and reliable quality. The production line has wide application range, high yield, and high retreading rate.
Description
Technical field
The present invention relates to a kind of giant tyre recycle utilization field, relate in particular to a kind of giant tyre renovation repair technology.
Background technology
Giant tyre claims that generally diameter of tyres is more than 2.6m, the wide 0.8m or specification is that the above tire of 27.00R49 is giant tyre.The price of giant tyre is soaring year by year on the market of international tire in recent years, and the source of goods is in short supply.Whether giant tyre uses rationally thus, and can directly affect ore deposit fortune car normally move, and is related to mining cost, raw materials consumption.As the giant tyre of running stores, its security performance and cost falling-rising are by people's growing interest.Only have tire is correctly used and perfect management, could ensure that fortune car in ore deposit normally sets out, only have the loss that reduces giant tyre, just can save production cost, and safety in production is played an important role.The damage of giant tyre mainly contains: the first is that incised wound is peeled off, and refers to that the giant tyre not in time dismounting that is in operation after the incised wound repairs, but continues to cause after operation a period of time that the tire tread part peels off, comes to nothing, falls the phenomenons such as piece.According to statistics, annual sleet season peeling off the giant tyre of scrapping because of incised wound accounts for and scraps more than 30% of total amount the whole year.Ore deposit fortune car is the Stress non-homogeneity that bears of tire under steam, cause the wound diffusion, because air, the penetration of water is strong, under the washing away of rainwater or snow-broth gradually along with the tire wound infiltrates steel wire floor, make rapidly oxidized, corrosion of steel wire floor, fracture, gradually separate with tread rubber, thereby wound is constantly increased, deepen.If untimely repairing will cause the tire part to peel off, fall piece until scrap, and is the concrete manifestation of tire earlier period damage.If it is completely mistaken continuing in the situation that does not have to leak gas at tire to use that, the tire wound comes to nothing and can not resist external impact because of sur-face peeling, can cause tyre break such as unusual incised wound, collision, brings very large hidden danger to safety in production.The second is office's mill, is commonly called as concentrated wear, so owing to the inhomogeneous treadwear that causes of tyre tread flange abrasion energy, be embodied in the tyre surface part and polish exposed steel wire etc.According to statistics, the giant tyre of scrapping because of office's mill in mining area, Pingshou every year accounts for scraps more than 30% of total amount the whole year.It is fatal to tyre life that this wearing and tearing directly destroy tire construction.The third is to impact explosion, when tire bumps against an object in load, will cause rapid distortion, and it is concentrated to produce very large stress in carcass section, and tire just might sustain damage so.If this collision occurs in the situation of ore deposit fortune car overload, hypervelocity just, when tire bumps against sharp-pointed stone or barrier, when the stress that bears and distortion are excessive, tend to cause tyre break.According to statistics, annual sleet season because accounting for, the giant tyre that impacts explosion and scrap scraps more than 5% of total amount the whole year.
Raw material-the natural rubber of tire has become China's another large strategic goods and materials in short supply after the raw materials of industry such as oil, iron ore and non-ferrous metal.China's rubber-consumer amount occupied the first in the world continuously from 2002, and it is nearly 20% to account for world's rubber-consumer amount, and wherein nearly seventy percent natural gum need rely on import.The annual rubber that consumes 70% of China is used for making tire, and every year is with nearly 15% speed increase.In China rubber sources situation in short supply, more need actively develop the junked tire cycling and reutilization, not only economize on resources but also can reduce pollution, can also create considerable economic benefit.Tyre retreading is the recycling first-selection of tire, has become the second source of tire.Giant tyre is because environment for use is more abominable, and wearing and tearing and machine are hindered seriously, have accelerated the speed of scrapping of tire, and within 1 year even will change tire 2-3 time, if all use new tyre, the price of a new tyre just reaches about 300,000 yuan, and the tire cost will be quite high.Domestic 1 57 at present " more than 30 ten thousand yuan/bar of the domestic price of mining and logging tyre, renovate 1 price and only be equivalent to new tyre price 30-40%, greatly reduce the tire used cost.Engineering tyre renovation ratio constantly increases in recent years, super large and giant tyre renovation ratio even reach the degree of 60%-80% abroad, and China's utilization rate is less than 20%, has not only wasted a large amount of waste and old engineering tyre resources, has also increased the consuming cost of tire used.Preventing junked tire to environment, and it is carried out effective recycling, become China's sustained economic development problem needing to overcome, also is the requirement that rubber industry is developed a circular economy simultaneously.
Also be implement scientific view of development to the special giant tyre rebuilding, accelerate the Circular Economy development, realize subtracting the recycling pollution-free industry of carbon resource, the renovation of special giant tire is all existed a lot of problems technically or on the scale both at home and abroad at present.The mold pressing heat of generally using is now turned over technology, and the expense of a mold can be up to 1,000,000, and different because of new tyre manufacturer, and the tire specification size is different, is difficult to sharing of die.So tyre retreading high cost, difficulty are very large, promote difficult.And because tyre surface is very thick, decorative pattern is very dark, and cure time is long, and energy consumption is excessive, is unfavorable for energy-saving and emission-reduction.Also can thermo-oxidative ageing serious with the tire of this technology renovation, the wear-resisting and anti-puncture of tyre surface is seriously reduction all, has shortened service life.Free vulcanization is from the U.S., and import a set of equipment spent ten million.This technology is to adopt to carve first decorative pattern, deliver to again large tank borough chief time open steam vulcanization, 12 hours/bar of cure time, not only efficient is low, and power consumption is large, and key is of poor quality, because of the oxidation of steam Long Time Thermal and surface condensation water logging, sulfuration rear surface deliquescing is clamminess, and causes intensity and elasticity variation, very easily collapses flower and wearing and tearing and becomes large.For this reason, the more than ten years all can not apply behind import one cover.The solution that does not abroad also obtain in this respect for many years.At present the domestic enterprise that can carry out the special giant tyre rebuilding is few, and it is too large to turn over the technology fund input mainly due to traditional mold pressing heat.And many shortcomings such as traditional giant embryo reconditioning technology exists that sulfuration process is backward, energy consumption is high, complex process, the huge investment of equipment is high, operating cost is high: (1) sulfuration process falls behind, existing giant tyre reconditioning technology mainly adopts steam or mist (steam+nitrogen) as curing medium, in vulcanizer (tank), vulcanize the serious thermo-oxidative ageing of the long and easy generation of cure time.(2) energy consumption is high, its heat provides by high steam when adopting the mist sulfuration, expending of water and matchmaker's resource is extremely serious, produces high steam by high-pressure boiler, is transported to curing department through pipeline, switch through valve again, to be filled with vulcanizer (tank), thermal source is provided, easily cause heat supply discontinuous, heat utilization rate is low to waste energy contaminated environment.(3) complex process, traditional giant embryo renovation adopts mold pressing heat to turn over, and old tire twines tread rubber and applies activating mold then in vulcanizing machine for huge tyre sulfuration (sulfuration in the machine), equipment bulky complex after grinding is repaired.(4) the huge investment of equipment is high, if treating the renovation tire vulcanizes at vulcanizing machine for huge tyre, employing machine finalize the design outward (capsule centers), put into again the machine sulfuration, its heating steam chamber, die cavity and segmented mold, add labor pressing mold closing mechanism, comprise side plate and entablature and linkage etc., all huge especially.Employing has the expense of mould when renovation one mold can be up to 1,000,000, and different because of new tyre manufacturer, and the tire specification size is different, is difficult to sharing of die.What need in addition overheated water station, hot water deaerating type of cycles, long distance increases pressure-reducing station and the infrastructure investments such as conveyance conduit and valve.The Patents that does not also have at present giant tyre to repair, the relevant patent of announcing on the patent network all is the reparation to small tyre, because the diameter of giant tyre is too large, small tyre reparation machinery can't be realized the reparation of giant tyre, Patents such as the CN200610046348.X that announces on the patent network, CN200520117793.1, CN87101377 not can be repaired giant tyre, and the giant tyre of reparation can not satisfy its high performance requirement.
Summary of the invention
According to above deficiency, the invention provides a kind of giant tyre renovation repair technology, solve the problem of the impaired rear reparation renovation of giant tyre, so that enterprise has reduced use tire cost, prevent that junked tire is to environment, and it is carried out effective recycling, for China's rubber industry cycle development, provide safeguard for national recycling economy development.
The technical solution used in the present invention is: a kind of giant tyre renovation repair technology, the concrete technology flow process is divided into four-stage: polishing, twine kiss-coating, texturing, sulfuration, that clean old tire to be repaired is carried out skiving at grinding machine, be wrapped on the good giant tyre of skiving in the adhesive tape that meets technological requirement of on the wrapping machine extruder being extruded subsequently, the thickness and the width that twine are finished automatically by unit, the decorative pattern that will satisfy the vehicle requirement by computer programming after winding is finished is engraved on the giant tyre that winds, and will carve at last the giant tyre of good flower and send into sulfurizing pot vulcanization; The apparatus for production line of giant tyre renovation repair technology is comprised of giant tyre grinding apparatus, giant tyre renovation kiss-coating Wiring apparatus, giant tyre texturing equipment and giant tyre retreading vulcanizing equipment, the giant tyre of the applicable renovation of this production line 20.00R25-59/80R63 can maximum retreads external diameter 3.3 meters.The giant tyre refreshing appliance production line that the present invention adopts adopts Frequency Drive, digital demonstration, touch-screen and industrial computer programme-control to finish the operation of production line.Constant product quality, reliable.This production line is applied widely, and output is high, but refresh rate is high, has filled up domestic blank.
Phase I, polishing.The equipment that the polishing stage adopts is the giant tyre grinding apparatus, and described giant tire refurbishment grinding equipment is comprised of control system, grinding machine and the giant tyre frame of giant tire refurbishment grinding equipment.Grinding machine is provided with movable case and skiving head assembly, and movable case grinding machine support that can move left and right is adjusted operating distance between grinding machine and the giant tyre.Described movable case the inside is provided with pneumatic system, and the above is provided with skiving head Crane Rail, and the skiving head assembly is arranged on the skiving head Crane Rail, and described skiving head assembly is provided with skiving head electric rotating machine, skiving head and electric pipeline.Skiving head electric rotating machine drives the skiving axle by belt, and the skiving head is fixed on the skiving axle by nut, is convenient for changing the skiving head; The compressed air inlet pipe of skiving head assembly connects the pneumatic system of movable case the inside; Skiving head track one side is provided with the grinding machine electric-controlled box.Be provided with connecting rod and leading screw below the described skiving head assembly; Skiving head Crane Rail is provided with stop, limits the stroke of skiving head assembly.Described control system is by the gentle control system of electric-controlled box control electric control system.Described giant tyre frame is provided with bracing frame, shrinks head and frame transmission case, and reduction box and frame motor are set in the described transmission case, sets the rotary speed of giant tyre by reduction box.By shrinking head fixed huge tire.
The concrete operations flow process in polishing stage is: the first step, and giant tyre is fixed on the tire frame and to tire proofreaies and correct, tire is equated to the distance on support both sides, use the floor push rotating tire, the foreign material on the removing tyre surface.Second step, the electric-controlled box power supply is pushed the ON position, the platform rotation of stopping the rotation until the center line of crown center line and skiving head matches of rotation turntable, mobile movable case makes the skiving head stop from the about 30mm of crown place, determines operating distance between grinding machine and the giant tyre.In the 3rd step, start skiving head electric rotating machine and in electric-controlled box, choose the technological parameters such as skiving key element such as turntable rotating speed, tire rotational speed, the skiving degree of depth according to the specification of tire.The 4th the step, to tire carry out skiving reach technological requirement after machine stop.
Second stage is twined kiss-coating.The equipment that twines the employing of kiss-coating stage is giant tyre renovation kiss-coating Wiring apparatus, and described giant tyre renovation kiss-coating Wiring apparatus comprises giant tyre frame, wrapping machine, extrudes forming press.Tire frame fixed huge tire, wrapping machine is by the winding kiss-coating of pressing assembly realization to giant tyre tire shoulder and tyre surface, and wrapping machine is arranged on to be extruded between forming press and the tire support, extrudes forming press and connects wrapping machine by conveyer belt.Reduction box is set on the described tire frame and twines motor, set the rotary speed of giant tyre by reduction box.The described forming press of extruding comprises feeding device, extrusion device, cooling glue feeding device and control system.The main motor setting of control system is fixed on extrudes on the die mould support, and main motor output end connects reductor by shaft coupling, and reductor connects feeding device.Be fixed on the support of extruding on the die mould support and be used for supporting extrusion device, the bracing frame that arranges on the extrusion device is used for supporting feed frame, fixedly extrudes control box on the feed frame; Described feeding device, extrusion device are located at below the feed frame, one end of feeding device connects reductor, and the other end connects extrusion device by pin barrel, and extrusion device connects extrudes the storage strip device, extrude the storage strip device other end and connect feed frame, feed frame is by the carriage connecting conveyor belt.The adhesive tape that extrusion device is extruded is delivered to feed frame through extruding the storage strip device, sends conveyer belt to, cooling and the typing of this process implementation to extruding adhesive tape through carriage again.Described wrapping machine comprises control device, pressing assembly, twines storage device.The wrapping machine control box is arranged on the swing arm, and the pressing assembly is set above the control box, twines the wrapping head that storage device connects the pressing assembly.Described pressing assembly is provided with sticking machine, detector, wrapping head, rule and detector and regulates handle.Described wrapping head twine storage device below, be provided with sticking machine below the wrapping head, detector is located at the sticking machine below, detector joins by connecting rod and detector adjusting handle, connecting rod is marked with the pointer that leans out housing, under the pointer rule is set.Regulate detector and regulate handle, detector is stretched out contact crown, stroke is located the thickness that giant tyre need to twine according to this.
The concrete operations flow process of twining the kiss-coating stage is: the first step, the reduction box speed ratio of tire frame is set, and giant tyre is fixed on the tire frame, the centre of gyration of wrapping head is overlapped with giant tyre section center of arc; Second step, determine that by detector giant tyre twines desired thickness, operation control system makes wrapping head and sticking machine compress giant tyre, the 3rd step, pre-hot-extrudable forming press feeding after 40 minutes, adhesive tape is put into feeding device, the adhesive tape that extrusion device is extruded by extrude storage strip device, feed frame, carriage, conveyer belt, the winding storage device enters wrapping head.The 4th step, twine kiss-coating to giant tyre, reach twine thickness after machine stop.
Phase III, texturing.The equipment that the texturing stage adopts is giant tyre texturing equipment, and described giant tyre renovation texturing equipment is comprised of control system, checkering machine and giant tyre frame.The checkering machine base fixes on the ground, is provided with slide rail at base, and the checkering machine cabinet above the base can move along slide rail; Checkering machine cabinet front is provided with the programming display, setting operation box support on the housing of the front of checkering machine cabinet, and the support upper support the operating case of control system, and operating case is connected with the programming display by control circuit; The cabinet right upper portion arranges circular knife rest assembly base, be provided with the chain that transmission is used around the knife rest assembly base, knife rest assembly base is provided with the knife rest assembly, and the knife rest stroke driving device of described knife rest assembly is fixed on the knife rest assembly base, and the knife rest stroke driving device can rotate vertically; Described knife rest stroke driving device is provided with the knife rest slide rail, and the texturing cutter base on the knife rest slide rail can move along the knife rest slide rail, is bolted the texturing cutter on the tool rest bracket, is convenient for changing the texturing cutter.Described giant tyre frame is provided with bracing frame, tire frame and transmission case, and reduction box and frame motor are set in the described transmission case, by the rotary speed of reduction box setting giant tyre, by tire frame fixed huge tire.Described control system is comprised of programming display, operating case and control line.Control box is provided with operation push-button, and by the programming of operational and controlled key button input command, the programming display shows whether programming reaches the programming standard, and control line connects the assemblies such as knife rest assembly, drive assembly, tire frame, controls each assembly by control line.The present invention programmes by the key-press input data of control box, and control system is controlled each assembly, reaches the effect of texturing on giant tyre.Be fixed on the giant tyre dynamic rotary on the tire frame, on operating case, programme according to giant tyre specification and the tire purposes setting texturing degree of depth, texturing length, texturing pattern type.Programming is heated the texturing cutter according to technological requirement after finishing.Start button began texturing after the texturing cutter reached technological temperature, and machine stopped after texturing were finished.The omnidistance computer control of texturing process is a kind of giant tyre renovation texturing equipment of modern high technology.
Texturing stage concrete operations flow process of the present invention is: the first step is fixed on giant tyre on the tire frame and to tire and proofreaies and correct, until tire equates to the distance on support both sides; Second step is chosen the texturing cutter according to tire specification; In the 3rd step, on operating case, programme according to tire specification and the tire purposes setting texturing degree of depth, texturing length, texturing pattern type.In the 4th step, programming is heated the texturing cutter according to technological requirement after finishing.In the 5th step, the texturing cutter begins texturing by the texturing start button after reaching technological temperature on operating case, and machine stopped after texturing were finished.
The quadravalence section, sulfuration.The equipment that sulfurating stage adopts is giant tyre retreading vulcanizing equipment, and described giant tyre retreading vulcanizing equipment primary structure comprises base, tank body, end socket, cover, rotating actuator and heating tube.The base of giant tyre retreading vulcanizing equipment is welded on the tank body, is provided with two overarms in the described tank body, is used for hanging and the fixed huge tire, and overarm has the extension moulding bed, and hanging has top tire support to support overarm under the moulding bed; The end of hanging oneself from a beam connects main shaft, and main shaft drives the overarm rotation; Inner tank wall is provided with heating tube.The tank body upper surface is provided with steam vent, safety valve and Pressure gauge.Described cover comprises tank door, fixed head, upper bracket, lower carriage, tumbler shaft, pivoted arm.The fixed head of described cover is welded on the tank body, upper bracket and lower carriage are bolted on the fixed head, tumbler shaft is fixed on upper bracket and the lower carriage by bearing, and pivoted arm one end is fixed on that the other end is fixed on the tank door on the arm shaft, and the tank door is provided with seal groove and lock ring.Described end socket is welded on an end of tank body, and it is provided with two seal disc root holes, and end socket is provided with temperature sensor, spraying cooling pipe and compressed air hose; The inwall of end socket is provided with interior muscle; Described seal disc root hole is to prevent Leakage Gas for the sealing main shaft.Described transmission device comprises motor, decelerator, shaft coupling, main shaft, sprocket wheel, crossbeam.Rotating actuator is provided with two main shafts, rotating actuator main shaft and crossbeam pass end socket and are arranged in the tank body, two main shafts are equipped with sprocket wheel and connect synchronously rotation by the sprocket wheel chain, one end of main shaft is fixed on the sealed packing of end socket, motor is connected with decelerator, shaft coupling one end is connected with decelerator, and the other end is connected with wherein a main shaft; Crossbeam is bolted on the interior muscle of end socket, and the two ends of crossbeam are provided with bearing block and the locating ring of fixed main shaft.The transmission device of vulcanizing tank drives hanging beam and tire rotation, accelerates heat exchange.Vulcanize complete after, vulcanizing tank is carried out exhaust cooling and takes out the renovation tire.Described heating tube is snakelike uniform welding on inner tank wall, can make the whole preheat temperature of tank body reach the time shorten of uniformity, can improve the uniformity that tire integral body is subjected to heat distribution, the temperature of diverse location and temperature rise speed high conformity can improve the cure efficiency of renovation full capping.
The concrete operating process of sulfuration of the present invention is: the first step, and the dress tire is placed on the tire made of operation before the sulfuration in the overarm, and multipotency is hung 2 on 59/80R63 tire.Second step, cover and tank body are closed up in locking, rotate lock ring cover and tank body are locked, and safety interlocking begins action, begins to detect the rear preparation of tank locking after locking puts in place and passes into curing medium.In the 3rd step, logical curing medium will meet the steam that the sulfuration process maximum pressure is no more than 0.8MPa and be filled with in the coil pipe, pass into the 0.4MPa ammonia in the vulcanizing tank.In the 4th step, rotary main shaft vulcanizes, and is filled with to begin sulfuration behind the curing medium, and the motor drives main shaft is according to the Periodic Rotating certain angle in sulfidation.Swing circle is generally per 5 minutes and rotates 10-60 second.After sulfidation finished, in the drain tank after the overbottom pressure, the operator observes tank internal pressure value to be zero and the manually-operated gate drain tap on the tank is opened, and observed without obvious pressure and safety pin can be released after discharging.The 4th step, can opening door, get tire, tyre vulcanization is complete, reaches in the tank after safety interlocking is opened after the zero-pressure, and the rotation lock ring is opened the tank door, with specific purpose tool the tire that vulcanizates is taken off from main shaft, removes warehouse-in.
The invention has the beneficial effects as follows:
(1) tyre retreading low production cost, saving resource is realized recycling economy, the original old tire carcass of tyre retreading utilization, production cost only is about 1/3 of new tyre generally, can save 100% cord and steel wire, rubber more than 50% and compounding ingredient material, 1/3 energy consumption.Tyre retreading industry is simple, and the production time can foreshorten to original 10%-20%, and labor productivity has improved more than tens times.On recycling economy, tyre retreading is the recycling optimal selection approach of tire, and its worth up to is to more than 1/3 of new tyre, and as it being made for the fuel of iron and steel, cement, papermaking, generating, its value only is 1/100 of tire; Rubber powder and reclaimed rubber are processed in its pulverizing, and its value also only is 1/10 of tire.Make the special giant tire of a 3600-51, need 3 tons of rubber, and renovate a tire with 1 ton of rubber, every renovation one tires is just saved rubber more than 2 tons.
(2) prolong Using Life of Tyre, reduce use cost, old tire renovation is used and can be reduced the new tyre acquisition expenses, can reduce thus the tire used cost more than 50%.The tire used life-cycle has 1/2-2/3 above from tyre retreading.Large off-the-road (OTR) tire 8-12 in a service life month, if only tyre surface damages, carcass was intact, and the 80%-90% that can reach new tyre service life is once renovated in general replaceable tread renovation 3-5 time.
The present invention repairs the renovation of giant tyre, solve the problem of the impaired rear reparation renovation of giant tyre, so that the wear hardness of giant tyre significantly improves, so that enterprise has reduced use tire cost, prevent that junked tire is to environment, and it is carried out effective recycling, for China's rubber industry cycle development, provide safeguard for national recycling economy development.
The below further is illustrated the present invention with the specific embodiment with reference to the accompanying drawings:
Description of drawings
Fig. 1 is giant tyre grinding apparatus front view of the present invention;
Fig. 2 is the tire frame right view of giant tyre grinding apparatus of the present invention;
Fig. 3 is giant tyre kiss-coating Wiring apparatus front view of the present invention;
Fig. 4 is giant tyre checkering machine front view of the present invention;
Fig. 5 is giant tyre checkering machine right view of the present invention;
Fig. 6 is giant tyre vulcanizing equipment front view of the present invention;
Fig. 7 is giant tyre vulcanizing equipment sectional view of the present invention;
Shown in the figure: 1, giant tyre, 2, the skiving head assembly, 3, skiving head electric rotating machine, 4, the grinding machine electric-controlled box, 5, skiving head Crane Rail, 6, movable case, 7, the skiving head, 8, compressed air inlet pipe, 9, the grinding machine support, 10, tire support, 11, turntable, 12, the giant tyre section, 13, shrink head, 14, bracing frame, 15, transmission case, 16, the tire frame, 17, shrink head, 18, conveyer belt, 19, twine storage device, 20, wrapping head, 21, sticking machine, 22, detector, 23, the wrapping machine control box, 24, the wrapping machine slide, 25, the wrapping machine motor, 26, swing arm, 27, rule, 28, detector is regulated handle, 29, the pressing assembly, 30, the wrapping machine electric cabinet, 31, the wrapping machine base, 32, extrude the storage strip device, 33, extrusion device, 34, the extruder support, 35, extrude the die mould support, 36, twine the extruder main motor, 37, extrude controller, 38, pin barrel, 39, feeding device, 40, shaft coupling, 41, extrude forming press, 42, carriage, 43, feed frame, 44, reductor, 45, the checkering machine cabinet, 46, the programming display, 47, the checkering machine base, 48, chain, 49, the texturing cutter, 50, the knife rest assembly, 51, operating case, 52, checkering machine cabinet drive assembly, 53, knife rest assembly base, 54, the knife rest slide rail, 55, driving box, 56, the knife rest stroke driving device, 57, chain guard, 58, transformer tank, 59, the operating case support, 60, cover, 61, pivoted arm, 62, tumbler shaft, 63, upper bracket, 64, Pressure gauge, 65, safety valve, 66, steam vent, 67, the cycloid reduction machine support, 68, tank body, 69, end socket, 70, the vulcanizing tank base, 71, lock ring, 72, lower carriage, 73, compressed air apertures, 74, crossbeam, 75, the spraying cooling hole, 76, temperature sensor, 77, steam hole, 78, backwater hole.
The specific embodiment
The below further is illustrated the present invention according to the specific embodiment:
Embodiment 1: polishing, as shown in Figure 1 and Figure 2, the equipment that polishing stage of the present invention adopts is giant tire refurbishment grinding equipment, is comprised of control system, grinding machine and the giant tyre frame of giant tire refurbishment grinding equipment.Grinding machine is provided with movable case (6) and skiving head assembly (2), and movable case (6) grinding machine support (9) that can move left and right is adjusted operating distance between grinding machine and the giant tyre (1).Described movable case (6) the inside is provided with pneumatic system, the above is provided with skiving head Crane Rail (5), skiving head assembly (2) is arranged on the skiving head Crane Rail (5), and described skiving head assembly (2) is provided with skiving head electric rotating machine (3), skiving head (7) and electric pipeline.Skiving head electric rotating machine (3) drives the skiving axle by belt, and skiving head (7) is fixed on the skiving axle by nut, is convenient for changing the skiving head; The compressed air inlet pipe (8) of skiving head assembly (2) connects the pneumatic system of movable case (6) the inside; Skiving head track one side is provided with grinding machine electric-controlled box (4).Be provided with connecting rod and leading screw below the described skiving head assembly (2); Skiving head Crane Rail (5) is provided with stop, limits the stroke of skiving head assembly (2).Described control system is by the gentle control system of electric-controlled box control electric control system.Described giant tyre frame is provided with bracing frame, shrinks head and frame transmission case, and reduction box and frame motor are set in the described frame transmission case, sets the rotary speed of giant tyre (1) by reduction box.By shrinking head fixed huge tire.
The concrete operations flow process in polishing stage is: the first step, and giant tyre (1) is fixed on the tire frame and to tire proofreaies and correct, tire is equated to the distance on support both sides, use the floor push rotating tire, the foreign material on the removing tyre surface.Second step, grinding machine electric-controlled box (4) power supply is pushed " opening " position, the platform rotation of stopping the rotation until the center line of crown center line and skiving head matches of rotation turntable, mobile grinding machine movable case (6) makes skiving head (7) stop from the about 30mm of crown place, determines operating distance between grinding machine and the giant tyre (1).The 3rd goes on foot, and chooses according to the specification of tire and cuts, cuts key element, such as turntable rotating speed, tire rotational speed, cutting depth etc.Start skiving head electric rotating machine (3) and in electric-controlled box, choose the technological parameters such as skiving key element such as turntable rotating speed, tire rotational speed, the skiving degree of depth according to the specification of tire.The 4th the step, tire is carried out skiving, reach technological requirement after machine stop.
The skiving tire is as follows with reference to process data:
| Tire specification | Tire rotational speed | The turntable rotating speed | Cutting depth | The last degree of depth |
| 36.00-51 | 20 rev/mins | 16 rev/mins | 2mm | 1mm |
| 30.00-51 | 20 rev/mins | 16 rev/mins | 2mm | 1mm |
| 27.00-49 | 22 rev/mins | 16 rev/mins | 2mm | 1mm |
| 24.00-49 | 24 rev/mins | 16 rev/mins | 2mm | 1mm |
Embodiment 2: twine kiss-coating, as shown in Figure 3, the equipment that twines the employing of kiss-coating stage is giant tyre renovation kiss-coating Wiring apparatus, and described giant tyre renovation kiss-coating Wiring apparatus comprises giant tyre frame, wrapping machine, extrudes forming press.Tire frame fixed huge tire (1), wrapping machine is by the winding kiss-coating of pressing assembly (29) realization to giant tyre (1) tire shoulder and tyre surface, wrapping machine is arranged on to be extruded between forming press and the tire support, extrudes forming press and connects wrapping machine by conveyer belt (18).The described forming press of extruding comprises feeding device, extrusion device, cooling glue feeding device and control system.Be fixed on the extruder support (34) of extruding on the die mould support and be used for supporting extrusion device (33), the upper bracing frame that arranges of extrusion device (33) is used for supporting feed frame (43), the upper control box (37) of fixedly extruding of feed frame (43); Described feeding device, extrusion device are located at below the feed frame (43), one end of feeding device connects reductor (44), the other end connects extrusion device (33) by pin barrel (38), extrusion device (33) connects extrudes storage strip device (32), extrude storage strip device (32) other end and connect feed frame (43), feed frame (43) is by carriage (42) connecting conveyor belt (18).The adhesive tape that extrusion device (33) is extruded is delivered to feed frame (43) through extruding storage strip device (32), passes through carriage (42) again and sends conveyer belt (18) to, cooling and the typing of this process implementation to extruding adhesive tape.Described wrapping machine comprises wrapping machine control device, pressing assembly (29), twines storage device (19).Wrapping machine control box (23) is arranged on the swing arm (26), and pressing assembly (29) is set above the wrapping machine control box (23), twines the wrapping head (20) that storage device (19) connects pressing assembly (29).Described pressing assembly is provided with sticking machine (21), detector (22), wrapping head (20), rule (27) and detector and regulates handle (28).Described wrapping head (20) is in the below of twining storage device (19), be provided with sticking machine (21) below the wrapping head (20), detector (22) is located at sticking machine (21) below, detector (22) is regulated handle (28) by connecting rod and detector and is joined, connecting rod is marked with the pointer that leans out housing, and rule (27) is set under the pointer.Regulate detector and regulate handle (28), detector is stretched out contact crown, stroke is located the thickness that giant tyre need to twine according to this.
The concrete operations flow process of twining the kiss-coating stage is: the first step, the reduction box speed ratio of tire frame is set, giant tyre (1) is fixed on the tire frame, the centre of gyration of wrapping head (20) is overlapped with giant tyre (1) section center of arc.Deflected width of tyre is the Transportation Engineering tire more than 27 inches, contains the wide level tire of section width more than 45 inches: sticking machine 40PSI; Wrapping head low pressure 40PSI, wrapping head high pressure 45PSI.27 inches following Transportation Engineering tires of deflected width of tyre contain 33 inches wide levels of section width tire: sticking machine 35PSI; Wrapping head low pressure 35PSI, wrapping head high pressure 40PSI.Deflected width of tyre is loader tire below 29.5 inches: sticking machine 30PSI; Wrapping head low pressure 25PSI, wrapping head high pressure 30PSI.Second step, determine that by detector (22) giant tyre (1) twines desired thickness, operation control system makes wrapping head (20) and sticking machine (21) compress giant tyre (1), the 3rd step, pre-hot-extrudable forming press feeding after 40 minutes, adhesive tape is put into feeding device, and the adhesive tape that extrusion device (33) is extruded is by extruding storage strip device (32), feed frame (43), carriage (42), conveyer belt (18), twining storage device (19) and enter wrapping head (20).Extrude film needle-like point temperature (adhesive glue≤100 ℃, tread rubber≤105 ℃).It is stable that feeding keeps, and forbids charging erratic.The 4th step, twine kiss-coating for giant tyre (1), reach twine thickness after machine stop.Wherein adhesive tape of every winding all approximately overlaps 2/3 wide with the adhesive tape that twined last time.After having twined the ground floor adhesive glue, stop to twine glue, air between adhesive glue and the old carcass is discharged in pressing at least 3 times.All twined rear with winding head pressure 3 times and compacting.Measure actual: thickness and standard ± 2mm, the wide and standard of tolerance ± 5mm of shoulder.Stick the sealing film at tire both sides virgin rubber and old carcass junction after having twined, paste the sealing adhesive strip place and will polish, flour milling should have more the 10-15 millimeter than adhesive tape, and the sealing film will paste the jail, without bubble, and neat and consistent.
Embodiment 3: texturing, and such as Fig. 4, shown in Figure 5, the equipment that the texturing stage adopts is giant tyre texturing equipment, described giant tyre renovation texturing equipment is comprised of texturing control system, checkering machine and giant tyre frame.Checkering machine base (47) fixes on the ground, is provided with slide rail at base, and the checkering machine cabinet (45) above the checkering machine base (47) can move along slide rail; Checkering machine cabinet (45) front is provided with programming display (46), setting operation box support (59) on the front housing of checkering machine cabinet (45), the support upper support the operating case (51) of control system, and checkering machine operating case (51) is connected with programming display (46) by control circuit; The cabinet right upper portion arranges circular knife rest assembly base (53), knife rest assembly base (53) is provided with the chain (48) that transmission is used on every side, knife rest assembly base (53) is provided with knife rest assembly (50), the knife rest stroke driving device of described knife rest assembly (50) is fixed on the knife rest assembly base (53), and the knife rest stroke driving device can rotate vertically; Described knife rest stroke driving device is provided with knife rest slide rail (54), and the texturing cutter base on the knife rest slide rail (54) can be mobile along knife rest slide rail (54), is bolted texturing cutter (49) on the tool rest bracket, is convenient for changing the texturing cutter.Described control system is comprised of programming display (46), operating case (51) and control line.Control box (51) is provided with operation push-button, programme by the operational and controlled key button input command, programming display (46) shows whether programming reaches the programming standard, and control line connects the assemblies such as knife rest assembly, drive assembly, tire frame, controls each assembly by control line.The present invention programmes by the key-press input data of control box, and control system is controlled each assembly, reaches the effect of texturing on giant tyre.Be fixed on the giant tyre dynamic rotary on the tire frame, on operating case, programme according to giant tyre specification and the tire purposes setting texturing degree of depth, texturing length, texturing pattern type.Programming is heated the texturing cutter according to technological requirement after finishing.Start button began texturing after the texturing cutter reached technological temperature, and machine stopped after texturing were finished.The omnidistance computer control of texturing process is a kind of giant tyre renovation texturing equipment of modern high technology.
Texturing stage concrete operations flow process of the present invention is: the tire after the winding, should park 1-3 hour, and the tyre surface temperature is (tyre surface is inside and outside) below 40 degree, can texturing.The first step is fixed on giant tyre on the tire frame and to tire and proofreaies and correct, until tire equates to the distance on support both sides; Second step is chosen the texturing cutter according to tire specification; In the 3rd step, on operating case, programme according to tire specification and the tire purposes setting texturing degree of depth, texturing length, texturing pattern type.In the 4th step, programming is heated texturing cutter (49) according to technological requirement after finishing.In the 5th step, texturing cutter (49) begins texturing by the texturing start button after reaching technological temperature on operating case, and machine stopped after texturing were finished.Carve first, behind second decorative pattern, the actual measurement groove degree of depth, length, width, when confirming to reach technological requirement, can continue texturing.
Embodiment 4: sulfuration, and such as Fig. 6, shown in Figure 7, the equipment that sulfurating stage adopts is giant tyre retreading vulcanizing equipment, described giant tyre retreading vulcanizing equipment primary structure comprises base, tank body, end socket, cover, rotating actuator and heating tube.The base of giant tyre retreading vulcanizing equipment is welded on the tank body (68), is provided with two overarms in the described tank body (68), is used for hanging and the fixed huge tire, and overarm has the extension moulding bed, and hanging has top tire support to support overarm under the moulding bed; The end of hanging oneself from a beam connects main shaft, and main shaft drives the overarm rotation; Inner tank wall is provided with heating tube.Tank body (68) upper surface is provided with steam vent (66), safety valve (65) and Pressure gauge (64).Described cover (60) comprises tank door, fixed head, upper bracket (63), lower carriage (72), tumbler shaft (62), pivoted arm (61).The fixed head of described cover (60) is welded on the tank body (63), upper bracket (63) and lower carriage (72) are bolted on the fixed head, tumbler shaft (62) is fixed on upper bracket (63) and the lower carriage (72) by bearing, pivoted arm (61) one ends are fixed on the upper other end of arm shaft (62) and are fixed on the tank door, and the tank door is provided with seal groove and lock ring.Described end socket (69) is welded on an end of tank body (68), and it is provided with two seal disc root holes, and end socket (69) is provided with temperature sensor (76), spraying cooling pipe and compressed air hose; The inwall of end socket is provided with interior muscle; Described seal disc root hole is to prevent Leakage Gas for the sealing main shaft.Described transmission device comprises motor, decelerator, shaft coupling, main shaft, sprocket wheel, crossbeam.Rotating actuator is provided with two main shafts, rotating actuator main shaft and crossbeam pass end socket and are arranged in the tank body, two main shafts are equipped with sprocket wheel and connect synchronously rotation by the sprocket wheel chain, one end of main shaft is fixed on the sealed packing of end socket, motor is connected with decelerator, shaft coupling one end is connected with decelerator, and the other end is connected with wherein a main shaft; Crossbeam is bolted on the interior muscle of end socket, and the two ends of crossbeam are provided with bearing block and the locating ring of fixed main shaft.The transmission device of vulcanizing tank drives hanging beam and tire rotation, accelerates heat exchange.Vulcanize complete after, vulcanizing tank is carried out exhaust cooling and takes out the renovation tire.Described heating tube is snakelike uniform welding on inner tank wall, can make the whole preheat temperature of tank body reach the time shorten of uniformity, can improve the uniformity that tire integral body is subjected to heat distribution, the temperature of diverse location and temperature rise speed high conformity can improve the cure efficiency of renovation full capping.
The concrete operating process of sulfuration of the present invention is: the first step, and the dress tire is placed on the tire made of operation before the sulfuration in the overarm, and multipotency is hung 2 on 59/80R63 tire.Second step, cover (60) and tank body (68) are closed up in locking, rotate lock ring cover (60) and tank body (68) are locked, and safety interlocking begins action, begins to detect the rear preparation of tank locking after locking puts in place and passes into curing medium.In the 3rd step, logical curing medium will meet the steam that the sulfuration process maximum pressure is no more than 0.8MPa and be filled with in the coil pipe, pass into the 0.4MPa ammonia in the vulcanizing tank.In the 4th step, rotary main shaft vulcanizes, and is filled with to begin sulfuration behind the curing medium, and the motor drives main shaft is according to the Periodic Rotating certain angle in sulfidation.Swing circle is generally per 5 minutes and rotates 10-60 second.After sulfidation finished, in the drain tank after the overbottom pressure, the operator observes tank internal pressure value to be zero and the manually-operated gate drain tap on the tank is opened, and observed without obvious pressure and safety pin can be released after discharging.The 4th step, can opening door, get tire, tyre vulcanization is complete, reaches in the tank after safety interlocking is opened after the zero-pressure, and the rotation lock ring is opened the tank door, with specific purpose tool the tire that vulcanizates is taken off from main shaft, removes warehouse-in.
Claims (5)
1. giant tyre renovates repair technology, feature is that the flow process of giant tyre renovation repair technology is divided into four-stage: the polishing stage, twine the kiss-coating stage, the texturing stage, sulfurating stage, specifically clean old tire to be repaired is carried out skiving at grinding machine, be wrapped on the good giant tyre of skiving in the adhesive tape that meets technological requirement of on the wrapping machine extruder being extruded subsequently, the thickness and the width that twine are finished automatically by unit, the decorative pattern that will satisfy the vehicle requirement by computer programming after winding is finished is engraved on the giant tyre that winds, and will carve at last the giant tyre of good flower and send into sulfurizing pot vulcanization; The apparatus for production line of giant tyre renovation repair technology is comprised of giant tyre grinding apparatus, giant tyre renovation kiss-coating Wiring apparatus, giant tyre texturing equipment and giant tyre retreading vulcanizing equipment, the giant tyre of the applicable renovation of this production line 20.00R25-59/80R63 can maximum retreads external diameter 3.3 meters.
2. giant tyre according to claim 1 renovates repair technology, the concrete operations flow process that it is characterized in that the stage of polishing is: the first step, giant tyre is fixed on the tire frame and to tire proofreaies and correct, tire is equated to the distance on support both sides, use the floor push rotating tire, remove the foreign material on the tyre surface; Second step, the electric-controlled box power supply is pushed the ON position, the platform rotation of stopping the rotation until the center line of crown center line and skiving head matches of rotation turntable, mobile movable case makes the skiving head stop from the about 30mm of crown place, determines operating distance between grinding machine and the giant tyre; In the 3rd step, start skiving head electric rotating machine and in electric-controlled box, choose the technological parameters such as skiving key element such as turntable rotating speed, tire rotational speed, the skiving degree of depth according to the specification of tire; The 4th the step, to tire carry out skiving reach technological requirement after machine stop; The equipment of polishing stage employing is comprised of control system, grinding machine and the giant tyre frame of giant tire refurbishment grinding equipment.
3. giant tyre according to claim 1 renovates repair technology, it is characterized in that the concrete operations flow process of twining the kiss-coating stage is: the first step, the reduction box speed ratio of tire frame is set, giant tyre is fixed on the tire frame, the centre of gyration of wrapping head is overlapped with giant tyre section center of arc; Second step determines that by detector giant tyre twines desired thickness, and operation control system makes wrapping head and sticking machine compress giant tyre; In the 3rd step, pre-hot-extrudable forming press feeding after 40 minutes is put into feeding device with adhesive tape, the adhesive tape that extrusion device is extruded by extrude storage strip device, feed frame, carriage, conveyer belt, the winding storage device enters wrapping head; The 4th step, twine kiss-coating to giant tyre, reach twine thickness after machine stop; The equipment that twines the employing of kiss-coating stage is that giant tyre renovation kiss-coating Wiring apparatus comprises giant tyre frame, wrapping machine, extrudes forming press.
4. giant tyre according to claim 1 renovation repair technology is characterized in that texturing stage concrete operations flow process is: the first step is fixed on giant tyre on the tire frame and to tire and proofreaies and correct, until tire is equal to the distance on support both sides; Second step is chosen the texturing cutter according to tire specification; In the 3rd step, on operating case, programme according to tire specification and the tire purposes setting texturing degree of depth, texturing length, texturing pattern type; In the 4th step, programming is heated the texturing cutter according to technological requirement after finishing; In the 5th step, the texturing cutter begins texturing by the texturing start button after reaching technological temperature on operating case, and machine stopped after texturing were finished; The equipment that the texturing stage adopts is giant tyre texturing equipment, is comprised of checkering machine control system, checkering machine and giant tyre frame.
5. giant tyre according to claim 1 renovation repair technology is characterized in that vulcanizing concrete operating process and is: the first step, and the dress tire, the tire that operation before the sulfuration is made is placed in the overarm, and multipotency is hung 2 on 59/80R63 tire; Second step, cover and tank body are closed up in locking, rotate lock ring cover and tank body are locked, and safety interlocking begins action, begins to detect the rear preparation of tank locking after locking puts in place and passes into curing medium; In the 3rd step, logical curing medium will meet the steam that the sulfuration process maximum pressure is no more than 0.8MPa and be filled with in the coil pipe, pass into the 0.4MPa ammonia in the vulcanizing tank; The 4th step, rotary main shaft, vulcanize, begin sulfuration after being filled with curing medium, the motor drives main shaft is according to the Periodic Rotating certain angle in sulfidation, and swing circle is generally per 5 minutes and rotates 10-60 second, after sulfidation finishes, in the drain tank after the overbottom pressure, the operator observes tank internal pressure value to be zero and the manually-operated gate drain tap on the tank is opened, and observes without obvious pressure and safety pin can be released after discharging; The 4th step, can opening door, get tire, tyre vulcanization is complete, reaches in the tank after safety interlocking is opened after the zero-pressure, and the rotation lock ring is opened the tank door, with specific purpose tool the tire that vulcanizates is taken off from main shaft, removes warehouse-in; The equipment that sulfurating stage adopts is giant tyre retreading vulcanizing equipment, and described giant tyre retreading vulcanizing equipment primary structure comprises base, tank body, end socket, cover, rotating actuator and heating tube.
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| CN201110231707XA CN102935724A (en) | 2011-08-15 | 2011-08-15 | Giant tire retreading and repairing technology |
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| CN201110231707XA CN102935724A (en) | 2011-08-15 | 2011-08-15 | Giant tire retreading and repairing technology |
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| CN102935724A true CN102935724A (en) | 2013-02-20 |
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| CN201110231707XA Pending CN102935724A (en) | 2011-08-15 | 2011-08-15 | Giant tire retreading and repairing technology |
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| CN106827595A (en) * | 2017-03-27 | 2017-06-13 | 贵州大学 | Tire quick repairing machine structure |
| CN108919378A (en) * | 2018-09-28 | 2018-11-30 | 重庆大学 | It is repaired after a kind of geological radar ranging foot wheel abrasion and parameter calibration method |
| CN113681788A (en) * | 2021-08-26 | 2021-11-23 | 北京多贝力轮胎有限公司 | Novel process tire combined forming and vulcanizing production line |
| CN116787831A (en) * | 2023-08-28 | 2023-09-22 | 潍坊顺福昌橡塑有限公司 | Extrusion molding device for manufacturing tire carcass |
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Application publication date: 20130220 |