Vulcanization Presses for Tire Production

Vulcanizing tire press with reduced heat loss for vulcanizing tires of different shapes and sizes. The press has an insulated tire receiving unit with a heating body for vulcanization. The heating body has an external fluid path for temperature control media. The media connections are on the side of the press body facing away from the unit. This allows connecting the media supply/drain lines outside the insulation. This eliminates the need for recesses/openings in the insulation body, reducing heat loss through convection. The media connections can be moved between units for versatility.

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Improving the inner heating method for vulcanizing tires in a vulcanization press to prevent excessive energy loss and ensure consistent vulcanization quality after prolonged idle times. The method involves adjusting the inner heating cycle duration based on whether the vulcanization press has been idle for a long time. If the press has been idle, the inner heating cycle is extended to compensate for potential component cooling. This prevents insufficient energy input during the first heating cycle after an idle period, which can lead to deterioration in tire properties.

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Tire vulcanizing equipment with a sealing hood to isolate the driving motor from the high temperature and pressure inside the vulcanizing bladder. The hood seals between the motor, rotating shaft, and fan. Magnets on the shaft and fan attract to rotate the fan. This allows the motor to drive the fan externally, preventing damage to the motor inside the sealed bladder. The sealing hood isolates the motor from the hot, pressurized vulcanizing environment.

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Vulcanizing equipment for curing rubber tires that improves tire quality, reduces space requirements, and eliminates condensation issues compared to conventional steam vulcanization. The equipment uses a stacked arrangement of a heating assembly and gas circulation assembly inside the vulcanizing bladder, rather than horizontally distributing them in the bladder. This saves space and allows better gas circulation. A rotating shaft sleeve outside the center rod connects the gas circulation assembly to a driving assembly. The bladder seals in the tire during vulcanization. The vertical stacked assembly eliminates condensation compared to horizontal arrangements.

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Reducing heat losses during tire vulcanization in a device that allows vulcanizing tires of varying shapes and sizes. The device has a tire receiving unit with a mold, heating body, and fluid path for a temperature control medium. The fluid path exits through a movable pressure body. This eliminates recesses and openings in the insulator around the unit, reducing heat transfer. The pressure body connectors are shared between units, allowing swapping without disconnecting.

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Programmable logic control (PLC) system for accurately controlling tire curing press bladder pressure during tire manufacturing. The system uses learning and analysis of past cycles to improve pressure control. It collects data like pressure, set point, and valve output during cycles. It analyzes that data to identify issues like overshoot and undershoot. Then it uses algorithms to adjust the valve output for the next cycle to mitigate those issues. This learns from past cycles to improve pressure control accuracy.

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Tire vulcanization equipment that allows larger tire sizes to be vulcanized without restriction from the internal heating and gas circulation devices. The equipment has an external mounting piece for the heating and circulation devices instead of inside the mold. This saves space inside the mold for larger tire sizes. The external devices divert and circulate the heated gas to the mold cavity.

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Intelligent vulcanization center for engineering tires that improves efficiency of equipment use by coordinating actions of devices in each vulcanization unit, integrating mold opening/closing and unloading/loading on a central unit, and using cooling stations between units to shorten auxiliary operation time. The center consists of four vulcanization hosts in sequence, each with upper and lower chambers, mold locking, and central mechanisms. A cooling station is provided between adjacent hosts. A centralized auxiliary unit between hosts performs mold closing/opening and tire handling. This centralized replacement of molds and centralized loading/unloading of tires efficiently coordinates device actions, shortens auxiliary operation time, and allows efficient operation of each unit.

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Heating press for vulcanizing vehicle tires that eliminates the need for bellows to prevent tire distortion during vulcanization. The press has an upper and lower part that can move axially. The upper part has the mold and can close on the lower part to compress the tire. This allows radial closure of the mold without using bellows. It also enables radial compression while heating from both inside and outside.

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Vulcanization equipment for tire curing that improves space efficiency and gas circulation compared to conventional horizontal bladder designs. The equipment uses a vertical stacking of the heating assembly and gas circulation assembly inside the vulcanization bladder. This eliminates the need for radial space around the bladder and allows tighter tire fits. The vertical arrangement also facilitates gas flow and prevents interference. The bladder sealing is done by a clamping device with air ducts. The heating assembly has a vertical heater and sleeve. The gas circulation assembly has a deflector ring, diffuser, and air duct.

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Tire vulcanization device and process that improves efficiency and reduces smoke compared to conventional methods. The device uses separate lower molds for large and small tires, allowing better fit and faster demolding. It also has sealing pistons, closed dust covers, and gas recovery to prevent smoke and waste gas. The device can also use electric heating instead of steam to reduce noise. The tire fixing mechanism uses a mechanical stretcher for small tires instead of capsules.

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Tire vulcanizer for more convenient and stable mold clamping and heating during vulcanization compared to existing vulcanization devices. The tire vulcanizer has a base for the mold to be placed on. The mold clamping is achieved by a vertical plate, hydraulic cylinder, and heating plate assembly that moves vertically to clamp the mold. This allows the mold to be easily positioned and clamped directly on the base without needing to overlap the heating plate. The heating plate is separately heated rather than overlapping the plates, eliminating the need for mold hoisting and pipeline connections. An opening and closing mechanism further assists in clamping the mold.

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Tire vulcanization mold and tire design to improve tire appearance by preventing mold marks. The mold has an inner wall with an exhaust device formed by an aluminum plate around an inner steel plate. During vulcanization, the different thermal expansion of the metals creates a gap less than 0.05mm between them. This prevents rubber from entering the gap and reduces mold marks on the tire tread. The mold can also have vacuum to remove internal air. The tread has reverse blocks and grooves matching the mold features.

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Vulcanization equipment for evenly heating tires during vulcanization to improve quality. It has a rotating member with an electromagnetic component inside a chamber on the ring seat. When energized, electromagnetic induction between the ring seat and rotating member causes it to rotate. This drives an air outlet to vent the hot nitrogen inside the vulcanization bladder, allowing circulation and balanced heating. The heating component guides gas to the bladder inner wall. This prevents hotspots and uneven vulcanization compared to static bladders.

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Tire vulcanization process to prevent unevenness and steel wire bending in large tires like 25" OTR tires. The process uses a non-water-soluble gas like nitrogen to initially inflate the tire mold during pre-vulcanization. This prevents steam condensation and rapid pressure fluctuations. The gas is gradually replaced with superheated water at increasing pressures to shape the tire. The water pressure is held at each stage for 3-20 minutes. This gradual pressurization and buffering prevents sudden pressure spikes that can deform the tire. Finally, vulcanization is done with superheated water circulation.

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Tire vulcanization heating system for improving tire vulcanization quality and reducing energy consumption compared to steam vulcanization. The system uses electric heating instead of steam. It has multiple heating units located at specific positions inside the mold and plates. Temperature feedback devices measure temperatures at those positions. A master control unit coordinates the heaters and compares feedback temps to targets for optimal vulcanization. This allows gradual, uniform heating of the mold surfaces. The temperature feedback provides more accurate control than just mold cavity temperature.

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Heating gas circulation mold assembly for tire vulcanization to improve quality and consistency of tire vulcanization by circulating heated gas inside the mold. The mold has a gas circulation pipeline with a turbine or diffuser device to guide the gas flow. A clamping device seals the vulcanization bladder in the mold cavity. The pipeline connects to an air intake and exhaust on the mold. This circulates heated gas throughout the bladder during vulcanization for more even heating versus stationary nitrogen.

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Device for vulcanizing tires that reduces heat loss during curing while allowing vulcanization of tires of different shapes and sizes. The device has a tire receiving unit with a mold that surrounds the tire, a heating element around the mold, and a movable pressure body. The heating element has a fluid path for temperature control. The insulating body around the tire unit is solid without recesses or openings to prevent heat loss. The fluid path connections are on the movable body instead of the unit. This allows replacing units for different tire sizes without disconnecting the fluid path each time.

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Method for adjusting external temperature of different regions in tire vulcanization molds to improve tire quality by preventing uneven heating during vulcanization. The method involves separately regulating the steam supply to the upper hot plate, mold cover, and lower hot plate instead of connecting them in series. Steam pipes with temperature valves are used to separately supply steam to the upper plate, mold, and lower plate. This allows setting different temperatures for each region instead of a single mold-wide temperature.

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A tire vulcanization process using inert gas to improve tire quality by avoiding defects caused by traditional steam/water vulcanization. The process involves swinging the pressure and temperature of inert gas during vulcanization. The steps are: 1) Collecting and storing inert gas. 2) Heating the gas to 195-215°C. 3) Circulating the heated gas through the mold. 4) Initial shaping and warming at low pressure. 5) High pressure vulcanization. 6) Recovering the gas. The pressure swing allows better mold filling, cord tension control, and crosslinking density. The temperature swing maintains optimal vulcanization conditions. The gas circulation ensures consistent pressure and temperature.

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Tire curing apparatus and method for curing using the same that enables efficient transmission of hydraulic power to multiple vulcanization units to prevent hydraulic shortage and speed differences. The apparatus has a driving unit connected to multiple vulcanization units that transmits hydraulic pressure. A control unit receives remaining curing time from sensors and opens units in groups to synchronize curing. It stops curing if too many units are close to finish. This prevents hydraulic power shortage when simultaneously supplying many units.

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A tire vulcanization heating device that provides uniform heating of the inner and outer rings of tires during vulcanization to improve quality. The device has a mold with a telescoping mounting seat that lowers onto a lifting plate. A steam generator introduces steam into the mold and surrounding channels. The steam circulates between the mold, inner ring, and outer rings. An internal heating mechanism in the mold provides additional heating to the inner ring. This ensures consistent heating of both inner and outer rings for better vulcanization.

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Tire mold and vulcanization equipment that allows more efficient and controlled tire vulcanization by dividing the mold into heating zones with insulated grooves. The grooves separate the mold into zones for the sidewall, shoulder, and bead regions. Each zone can be independently controlled to match the vulcanization time requirements of those areas. This prevents overvulcanization of the sidewall while ensuring sufficient vulcanization of the thicker areas like the shoulder and bead. The insulated grooves suppress heat transfer between zones to enable true zone temperature control.

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A tire vulcanization mechanism using steam/superheated water as a vulcanization medium that reduces temperature differences between upper and lower molds during tire curing. The mechanism has an upper mold, lower mold, bladder, and a vulcanization medium guide pipe between the molds. Steam/water enters through the lower mold inlet, sprays upward, expands the bladder, and then refluxes downward through the guide pipe. This closed loop circulation prevents suffocation of the upper mold and ensures consistent heat transfer.

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Two-step demoldable tire vulcanization apparatus and method to prevent mold and tire damage during tire vulcanization. The apparatus has separate molds for the upper and lower sides of the tire, a tread mold, and an optional segment. In step 1, the green tire is placed in the vulcanization space. In step 2, the molds are closed around the tire. In step 3, heat and pressure are applied to vulcanize the tire. In step 4, the tread mold's protruding molded body is retracted from the guide hole. In step 5, the molds separate while spaced apart. This allows the tread mold to demold without interference. The segment helps guide the molded body in the tread mold.

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A tire vulcanization device to improve the life of vulcanization molds used in curing green tires onto rigid cores. The device has a lifting mechanism with a clamping member that engages the tie rod to lower and raise the mold halves. This allows the mold halves to be tightened symmetrically instead of just the center. By applying force to the mold edges through the clamp, it distributes the pressing force and prevents excessive concentration on the mold center. This extends mold life compared to tightening just the center bolts.

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Tire vulcanization apparatus and method that allows more reliable mold closure and prevents mold gaps to improve tire quality. The apparatus has a backing plate, upper plate, lower plate, container ring, and connecting body. The backing plate is connected to the container ring and slides vertically. To close the mold, the backing plate is lowered first, then the container ring is lowered independently. This allows the upper sidewall mold to press against the segment molds without gaps. The backing plate holds the molds closed. This prevents steps in the sidewalls due to gaps between the molds.

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A method to prevent tire deformation during removal from a vulcanization mold in vacuum vulcanization. After injecting the heating and pressurizing medium into the bladder in a vacuum, atmospheric conduction is performed between the bladder and tire before opening the mold. This prevents vacuum forces from pulling the bladder out and deforming the tire.

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Tire vulcanization equipment with improved drainage in the upper mold to prevent water accumulation during vulcanization. The upper mold has separate chambers for the tire tread, sidewall, and bead. It also has an external chamber. The mold has an air inlet connected to a steam source, and an outlet connected to the mold chambers. A siphon pipe connects the mold chambers to the external chamber. This allows steam to fill the mold chambers and condensation to drain out the bottom. The siphon prevents water from the tread chamber blocking drainage from the bead chamber.

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Adjustable water-cooled vulcanizer for tire curing that improves tire quality by preventing over-vulcanization of the surface while ensuring proper vulcanization of the inner weak points. The vulcanizer has a sealed curing chamber with adjustable water pressure and temperature control. It uses water as a heat transfer medium inside the chamber to cure tires more evenly. The water pressure can be adjusted to match the tire thickness. The chamber is evacuated after initial heating to prevent over-vulcanization at the surface. This allows the inner weak points to fully cure while the outer surface uses residual heat.

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Controlling fluid discharge during tire molding to improve vulcanization and prevent defects. The method involves building the green tire with a radially internal surface that has channels or grooves extending from the belt to the sidewall. These channels connect to the mold's discharge channels. This allows fluids between the mold and green tire to flow out, preventing trapped air pockets and improving adhesion during vulcanization. The channels can be continuous elastomeric coils wound into the tire.

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A method for vulcanizing green tires using a new energy vulcanization system that saves vulcanization time by making full use of the time between steps like tire insertion, bladder inflation, and mold closing. The method involves heating the vulcanization medium to progressively higher temperatures during each shaping cycle. After the green tire is filled with low-pressure vulcanization medium for the first time, it's heated to a first temperature. Then, during the second shaping, it's heated to a higher second temperature. This allows preheating the vulcanization medium during the initial shaping step. After vulcanization, the remaining high-pressure medium is recovered and reused.

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Reducing temperature variation and improving uniformity during tire vulcanization to prevent vertical gradient issues. The vulcanization bladder has clamps with vertical splitting bodies that communicate with an injection path for steam and gas. This allows internal agitation to mix and distribute the medium during inflation. Injection ports are located outside the bladder opening edges. This enables injecting steam/gas into the bladder from the injection path instead of directly into the bladder. This agitates the bladder interior and prevents temperature stratification.

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A vulcanization device for solid tires that provides better heating uniformity and tire vulcanization quality. The device has a bottom plate with vertical columns, fixed and movable vulcanization seats, and a lifting drive mechanism. The movable seat slides on the columns. A lifting screw connected to a motor raises and lowers the movable seat. This allows the mold to be positioned closer to the heating source for faster vulcanization on the top side, then lowering to equalize heating on the bottom side. This reduces temperature gradients for more even vulcanization compared to using just a heated mold.

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Single tire mold for uniform tire vulcanization to improve tire quality. The mold has fixed and movable vulcanization seats with sliding sleeves to separate the tire halves during curing. Heat-conducting oil cavities beneath the fixed and movable tire molds provide direct heat transfer. The oil inlet and outlet pipes allow controlled oil circulation. This isolates and heats each half separately for more uniform vulcanization.

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An automatic vulcanization device for solid tires that ensures uniform heating and consistent vulcanization quality by using a dual-column lift mechanism. The device has a fixed vulcanization seat and a movable vulcanization seat that slide up and down on vertical columns. The seats have mold cavities for the tire sections. Heat transfer oil circulates through inlet/outlet pipes in the fixed seat and moves between the sections during vulcanization. The lift mechanism raises the movable seat to assemble the mold cavities into a sealed cavity for vulcanization. This allows equal heating of the tire sections since they both contact the hot oil. The device also has sensors to monitor temperatures and timers to control vulcanization cycles.

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Vulcanizing machine with multiple chambers that can open and close individually to improve efficiency and reduce cost compared to traditional two-chamber machines. The machine has a row of chambers with movable molds that can be controlled to open and close using a single driving device. This allows simultaneous curing of multiple tires without needing multiple machines. A controller coordinates the mold movements. The chambers can be arranged in a row on a frame. The machine also has features like gantry movement, tire handling, and vacuum-insulated chambers to further improve efficiency.

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A tire mold design that allows separate vulcanization of the tread and sidewall during tire curing. The mold has an upper heating plate with an upper side plate below it, and a lower heating plate with a lower side plate below it. The upper side plate has a pattern block for the tire tread, and the lower side plate has a pattern block for the sidewall. The upper side plate also has an I-shaped plate between the tread pattern and the mold shell. This allows the upper side plate and tread pattern to be heated separately from the lower side plate and sidewall pattern, enabling optimal vulcanization of each area.

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A nitrogen wind blowing electric heating tire vulcanization mold that provides uniform heating and vulcanization of tires by using nitrogen blowing to transfer the heat from the electric heating elements. The mold has an annular cavity between the mold and vulcanization chamber that surrounds the cavity. Nitrogen is blown through the annular cavity by a nitrogen delivery system to uniformly heat the mold walls. This ensures consistent temperature across the mold and vulcanizes the tire outer surface evenly. The electric heating elements are placed in the annular cavity and temperature sensors monitor the mold walls.

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A solid tire vulcanization system with improved heating uniformity for better tire quality. The system uses a vertical sliding mold assembly instead of a fixed mold to vulcanize tires. The molds can be separately positioned and then slid together to enclose the tire. This allows synchronized heating of the tire throughout the vulcanization process. It also uses a centralized oil circulation system with separate fixed and movable side oil cavities to transfer heat to the molds. This avoids uneven heating from long distance heating elements. The molds snap together and are raised together for tire removal.

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Integrated high-efficiency tire vulcanization center that simplifies the structure of a single tire vulcanization machine to improve efficiency. The center has multiple tire vulcanization chambers in sequence with a shared auxiliary operation unit above them. The auxiliary unit has a movable frame with integrated devices like mold opening/closing, loading/unloading, and lifting. This frame moves along the chambers to perform auxiliary operations on each one. This eliminates separate devices for each chamber, reducing waste and improving efficiency by minimizing downtime between steps.

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Tire vulcanization apparatus and method that reduces temperature variation between parts of a tire mold during opening to improve tire quality. The vulcanization machine has a segmented mold configuration with annular sector molds attached to an inner surface. The upper and lower plates sandwich the segments during vulcanization. When closing the mold, the segments contact heated guides and plates. When opening, the upper segment releases the guide but lower segments stay in contact to maintain temperature. This prevents excessive cooling of the mold sections during opening.

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A hybrid heating tire vulcanizer with a unique design that addresses issues with traditional vulcanizers like mold release, air entrapment, and tire deformation during curing. The vulcanizer has a central tube with an impeller and magnets inside, surrounded by movable lower and upper molds. The lower mold has magnets to grip the tire, and the upper mold has a heating plate. The central tube circulates oil during curing to prevent mold release. The impeller creates airflow to prevent air entrapment. The molds move together to compress the tire. The upper mold can be detached for easy tire removal. The central tube oil circulation system allows controlled cooling before demolding.

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Vulcanizing machine for tires that reduces smoke, gas, and steam emissions during tire curing. The machine has a chamber with upper and lower shells and mold bodies that can move together to enclose the tire. Before closing, air is extracted from the chamber to create a vacuum. This prevents air bubbles in the mold and reduces smoke and emissions compared to venting air during molding. After curing, the upper mold lifts to extract gases and improve workshop air quality.

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Tire vulcanization apparatus and method to improve uniformity of vulcanization by actively circulating and agitating the vulcanization medium inside the bladder. The apparatus has tanks connected to the bladder with sliding pistons. The method involves alternately increasing and decreasing the medium volume in each tank using the pistons. This forces the medium to flow between tanks and agitate inside the bladder. It suppresses temperature variation and provides more uniform vulcanization compared to just injecting and stirring the medium.

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A nitrogen wind blowing electric heating vulcanization mold for rubber tires that provides uniform heating and vulcanization of the inner and outer surfaces of the tire. The device uses nitrogen blowing and electric heating to vulcanize tires instead of water and steam. It has a mold with a heating core, heating coils, and nitrogen flow channels. Nitrogen is blown through the mold and cores to uniformly heat the inner tire surface. This prevents temperature gradients during vulcanization. The device also has temperature and pressure control systems for optimal vulcanization.

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A bladder-free tire vulcanizer that eliminates the need for bladders and capsules in tire vulcanization. The vulcanizer uses electromagnetic induction heating to heat the molds instead of steam or nitrogen. It has multiple vulcanizing chambers side by side with integrated frames. Each chamber has its own power unit and molds. The molds are heated by electromagnetic induction coils instead of bladders filled with steam or nitrogen. This eliminates the need for capsules that need replacing and steam generation. The electromagnetic heating is more power-efficient and avoids the hazards of open flames. The nitrogen mechanism uses springs and slides to inject nitrogen into the tire during vulcanization.

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A vulcanization machine for tire production that eliminates the need for manual tire removal and allows automated tire extraction. The machine has a telescopic rod that extends and retracts to open and close the mold. The mold has a center column with an airbag to fix the tire shape during inflation. The column can be lifted to extract the tire. A cooling pipe inside the machine cools the tires after vulcanization. High-temperature steam is supplied to the mold bottom. An air intake fan provides air to the pipe. This allows automated tire extraction without manual intervention.

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Integrated high-efficiency tire vulcanization center that increases efficiency of tire vulcanization machines by sharing auxiliary equipment between multiple machines. The center has a row of vulcanization chambers arranged in sequence and a movable frame with integrated opening/closing, loading/unloading, and lifting devices. The frame moves between chambers to perform auxiliary operations on each machine without dedicated equipment at each station. This reduces waste of installed power and improves overall equipment use efficiency compared to standalone machines.

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A multi-station integrated vulcanizing unit system for efficiently vulcanizing tires in a limited space. The system uses multiple vulcanizing stations arranged in a row with a tire blank supply station at the back and a finished tire conveying station at the front. Grasping stations with trolleys and lifts are located between the vulcanizing stations and the supply/conveying stations. RFID tags are used to identify and move the tires between stations. The integrated layout allows multiple tires to be vulcanized simultaneously in a compact area.

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