A vulcanization line for aircraft tires

Abstract

The present application relates to the technical field of aviation tire, and particularly relates to a vulcanization pipeline facility of aviation tire, which comprises a plurality of vulcanization stations, a plurality of input ends of a valve group one are respectively provided with a plurality of control valves one, the plurality of control valves one are respectively connected with the plurality of vulcanization stations through a plurality of return pipelines, and an output end of the valve group one is connected with an input end of a pump group; an input end of a valve group two is connected with an output end of the pump group through a conveying pipe two, a plurality of output ends of the valve group two are respectively provided with a plurality of control valves two, the plurality of control valves two are respectively connected with the plurality of vulcanization stations through a plurality of upflow pipelines; a main medium source is connected with an input end of the valve group one, a controller is electrically connected with the plurality of control valves one and the plurality of control valves two, and a vulcanization medium is recycled between the plurality of vulcanization stations; the vulcanization medium can be recycled between the plurality of vulcanization stations, high-temperature medium discharged from a capsule can directly enter a next vulcanization station, and waste of heat and medium is reduced.

Description

Technical Field

[0001] This invention relates to the technical field of aircraft tires, and in particular to a vulcanization pipeline system for aircraft tires. Background Technology

[0002] During the production of aircraft tires, the tire blanks need to undergo a vulcanization process to cause the rubber molecules of the aircraft tires to undergo a cross-linking reaction, transforming them from a linear polymer structure into a three-dimensional network structure, thereby enabling the aircraft tires to obtain better physical properties and mechanical strength. Chinese invention patent application CN119283412A discloses a tire vulcanization system and control method with a cooling pipeline. The tire vulcanization system includes a vulcanization level with a bladder; a medium circulation device; a bladder inlet pipeline and a bladder outlet pipeline respectively connected to the bladder; the medium circulation device is also connected to the bladder inlet pipeline and bladder outlet pipeline; it further includes an inflation pipeline and an exhaust pipeline; wherein a heating pipeline for heating the vulcanizing medium and a cooling pipeline for conducting the vulcanizing medium are connected in parallel on the bladder inlet pipeline, the heating pipeline is equipped with a heating element, and the cooling pipeline is equipped with a valve element; the main function is to adjust the temperature of the vulcanizing medium entering the bladder by using a cooling pipeline with a valve element in conjunction with a heating pipeline with a heating element, and by controlling the system to open the cooling pipeline according to different needs, thereby making the temperature change inside the bladder smaller and more stable, resulting in more uniform tire vulcanization and improved tire quality.

[0003] In vulcanization, the vulcanizing medium is usually high-temperature water, steam, nitrogen, etc. The aforementioned vulcanization pipeline system mainly controls the pressure and temperature of the vulcanizing medium at a single vulcanization stage. The medium circulation system also mainly targets a single vulcanization stage and does not efficiently reuse the high-temperature medium discharged from the capsule, resulting in a large amount of heat loss and waste of these media. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a vulcanization pipeline facility for aircraft tires that enables the vulcanizing medium to be recycled between multiple vulcanization stages, allowing the high-temperature medium discharged from the capsule to directly enter the next vulcanization stage, thereby reducing the waste of heat and medium.

[0005] The present invention provides a vulcanization pipeline facility for aircraft tires, comprising: Multiple sulfidation stations are provided, each with a central mechanism containing a capsule. Each capsule in the multiple central mechanisms is equipped with a pipeline interface, through which the sulfidation medium is introduced into the capsule and discharged from the capsule. Valve group one is provided with an output end and multiple input ends. Multiple control valves are installed on the multiple input ends of valve group one. The input ports of the multiple control valves are connected to the pipeline interfaces of multiple sulfurization levels through multiple return pipelines. The output end of valve group one is connected to the input end of pump group one through delivery pipe one. Valve group two is provided with an input end and multiple output ends. The input end of valve group two is connected to the output end of pump group two through delivery pipe two. Multiple control valves two are installed on the multiple output ends of valve group two respectively. The output ports of multiple control valves two are connected to the pipeline interfaces of multiple sulfurization levels through multiple upstream pipelines. The main medium source, which is connected to one input terminal of valve group one through the main pipeline, is used to deliver the medium to the system; The controller is electrically connected to multiple control valves 1 and multiple control valves 2, and is used to control the orderly opening and closing of multiple control valves 1 and multiple control valves 2, so that the sulfurizing medium can be circulated between multiple sulfurizing levels. Multiple vulcanization stations are set up as a vulcanization group. This pipeline facility allows the vulcanization medium to be circulated among multiple vulcanization stations in the same vulcanization group. The vulcanization of aircraft tires includes a molding stage and a curing stage. In the same group, the number of vulcanization stations is set based on the ratio of vulcanization time to preparation time. For example, when the ratio is 5:1, 4 vulcanization stations are set up. This setting has a certain time margin. During operation, control valve 1 connected to the main pipeline on control valve group 1 of the controller is open, while the other control valves are closed. Control valve 2 connected to the upstream pipe of vulcanizing station 1 on control valve group 2 of the controller is open, while the other control valves are closed. The pump group operates by using delivery pipe 1, valve group 1, and the main pipeline to input the medium supplied by the main medium source into the central mechanism of vulcanizing station 1 through delivery pipe 2, valve group 2, and the upstream pipeline. The medium temperature is adjusted to the molding temperature, causing the bladder of vulcanizing station 1 to expand and maintain a certain pressure, which expands the interior of the aircraft tire blank and cooperates with the mold to shape the aircraft tire blank. During the aircraft tire molding at vulcanizing station 1, preparation work is carried out sequentially for vulcanizing station 2, vulcanizing station 3, and vulcanizing station 4. After the preparation work at vulcanizing station 2 is completed... Afterwards, the control valve 2 corresponding to vulcanization position 1 on valve group 2 is closed, and the control valve 2 corresponding to vulcanization position 2 is opened. The above operation is repeated to shape the aircraft tire blank on vulcanization position 2. During the shaping process of the aircraft tire blank on vulcanization position 2, multiple control valves 2 on valve group 2 are switched, the pump group runs to pressurize the capsule of vulcanization position 1 to the curing pressure, and the medium temperature is adjusted to the vulcanization temperature to cure the aircraft tire on vulcanization position 1. After the preparation work of vulcanization position 3 is completed, the above operation is repeated to shape the aircraft tire on vulcanization position 3. After the shaping of the aircraft tire blank on vulcanization position 2 is completed, multiple control valves 2 on valve group 2 are switched, the pump group runs to pressurize the capsule of vulcanization position 2 to the curing pressure, and the aircraft tire on vulcanization position 2 is cured. After the aircraft tire at vulcanizing station one has cured, control valve one connected to the main pipe on valve group one is closed, and control valve one connected to the return pipe of vulcanizing station one is opened. Control valve two connected to the upstream pipe of vulcanizing station four on valve group two is opened, and other control valves are closed. The pump group operates to directly transport the high-temperature medium in vulcanizing station one to vulcanizing station four to shape the aircraft tire. The aircraft tire in vulcanizing station one is then removed, and preparation work is carried out for vulcanizing station one. At this time, the curing stage of the aircraft tire at vulcanizing station three begins. After the aircraft tire at vulcanizing station two has completed the curing stage, vulcanizing station one is ready. The corresponding control valve one on valve group one is then opened and closed. Adjust the opening and closing of the corresponding control valve 2 on valve group 2, and directly input the high-temperature medium in sulfurizing position 2 into sulfurizing position 1. Repeat the above operation to make sulfurizing position 1, sulfurizing position 2, sulfurizing position 3, and sulfurizing position 4 work in a cyclical manner. The high-temperature medium circulates in a regular pattern from sulfurizing position 1 to sulfurizing position 4, from sulfurizing position 2 to sulfurizing position 1, from sulfurizing position 3 to sulfurizing position 2, from sulfurizing position 4 to sulfurizing position 3, and from sulfurizing position 1 to sulfurizing position 4. During the above process, the lost medium is replenished in real time through the main medium source, valve group 1, pump group, and valve group 2. The sulfurizing position that has completed molding is pressurized according to the program so that the medium pressure reaches the curing requirements. This system optimizes the vulcanization pipeline system for multiple vulcanization stages, allowing the medium to circulate within a small range among the multiple vulcanization stages in the same group. Its modular design has a high degree of integration and enables pressure and temperature control of the vulcanization medium at multiple vulcanization stages. The circulation of the vulcanization medium among multiple vulcanization stages allows the high-temperature medium discharged from the capsule to enter the next vulcanization stage more directly, shortening the heat dissipation path and enabling the medium to be reused before a large amount of heat is lost, thus reducing the waste of heat and medium.

[0006] Preferably, a bypass pipe is also included. The input end of the bypass pipe is connected to the output end of valve group one, and the output end of the bypass pipe is connected to the input end of valve group two. A valve is installed on the bypass pipe. The high-temperature medium in the corresponding sulfurization level is input into valve group one. The valve of the bypass pipe is opened, allowing the high-temperature medium in valve group one to be directly input into valve group two through the bypass pipe. The corresponding control valve on valve group two is opened, allowing the high-temperature medium to bypass the pump group and be directly input into another corresponding sulfurization level. After the pressure of the two connected sulfurization levels is balanced, the valve of the bypass pipe is closed, the pump group is started, reducing the pump group operation and reducing the obstruction effect of the pump group in the initial stage, thereby increasing the medium flow rate.

[0007] Preferably, the system also includes a medium transfer tank. The input end of the medium transfer tank is connected to one output end of valve group two via a transfer inlet pipe, and the output end of the medium transfer tank is connected to one input end of valve group one via a transfer outlet pipe. Valves are installed on both the transfer inlet pipe and the transfer outlet pipe. During the molding stage at the corresponding sulfurization level, excess high-temperature medium in the sulfurization level that supplies the medium to the corresponding sulfurization level is temporarily stored in the medium transfer tank via valve group two and the transfer inlet pipe. When the corresponding sulfurization level enters the curing stage, the medium in the medium transfer tank is input to the corresponding sulfurization level via the transfer outlet pipe, valve group one, pump group, valve group two, and the upstream pipe, thereby realizing medium transfer and reducing medium loss.

[0008] Preferably, multiple return lines and multiple upstream lines are equipped with check valves; by setting check valves, backflow of the medium is prevented.

[0009] Preferably, valve assembly one includes: The valve block body has an internal chamber. The main connector communicating with the chamber is provided on the side wall of the valve block body. The top wall of the valve block body has multiple mounting holes communicating with the chamber. Multiple electrically controlled valves 1 and multiple electrically controlled valves 2 are respectively installed on the valve block body through multiple mounting holes. Multiple electrically controlled valves 1 and multiple electrically controlled valves 2 are respectively connected to the chamber of the valve block body through multiple mounting holes. Each of the multiple electrically controlled valves 1 and multiple electrically controlled valves 2 is provided with a pipeline interface 2. An interlocking assembly is installed between multiple electrically controlled valves 1, which locks the other multiple electrically controlled valves 1 when one of them is open. Valve group 1 and valve group 2 have the same structure. Both control valve 1 and control valve 2 are electrically controlled valves 1. The pipeline interfaces 2 of multiple electrically controlled valves 1 in valve group 1 are connected to the output ends of multiple return pipes. The pipeline interfaces 2 of multiple electrically controlled valves 1 in valve group 2 are connected to the input ends of multiple upstream pipes. The multiple pipeline interfaces 2 of multiple electrically controlled valves 2 are used to connect to the main pipe, intermediate inlet pipe, and intermediate outlet pipe. The main connector of valve group 1 is used to connect to delivery pipe 1, and the main connector of valve group 2 is used to connect to delivery pipe 2. This achieves an integrated valve group module, which is convenient for layout and simplifies pipeline design.

[0010] Preferably, the electrically controlled valve includes: The valve housing is threaded onto the mounting hole of the valve block body via a threaded interface. A threaded joint is provided on the side of the valve housing. The valve core is slidably installed inside the valve housing. A valve stem is provided on the upper part of the valve core, and the valve stem extends out of the valve housing. A gantry is installed on the valve block body, and an electromagnetic push rod is mounted on the gantry. The lower end of the telescopic rod of the electromagnetic push rod is connected to the valve stem. The second pipeline interface is a threaded joint. The electromagnetic push rod is installed on the valve block body through the gantry and is electrically connected to the controller to realize automatic control. The telescopic rod of the electromagnetic push rod pushes the valve stem to rise and fall, and the valve stem pushes the valve core to rise and fall. When the valve core descends to the bottom threaded interface of the valve body, the valve core cuts off the installation port and the threaded joint, solidly closing. When the valve core rises to the top of the valve body, it connects the installation port and the threaded joint, realizing opening. The technology is mature and reliable.

[0011] Preferably, the interlocking component includes: Multiple slots are provided on the upper sidewalls of multiple valve stems; The lower end is rotatably connected to multiple valve stems and multiple push rods. These push rods are inclined, and their upper ends are hinged to the horizontal elongated holes of a clamping plate. The clamping plate is horizontally slidably connected to the gantry, and it is equipped with multiple locking blocks that match multiple locking slots. When multiple valve cores descend to the bottom of multiple valve bodies to cut off the medium, the locking blocks of the clamping plate are horizontally aligned with the multiple locking slots, and the push rods are inclined. When a valve stem and the valve core below it are lifted to connect the medium, the valve stem pushes the lower end of the push rod above it upward, causing the push rod to gradually become horizontal from its inclined position. This push rod then pushes the clamping plate horizontally, causing the locking blocks of the clamping plate to engage with the other locking slots, thereby locking the other valve stems. The horizontal elongated holes on the clamping plate prevent the upper ends of the other push rods from moving when the clamping plate slides, achieving an interlocking effect and improving reliability.

[0012] Preferably, it also includes a slide rail horizontally mounted on the gantry, a card plate horizontally slidably mounted on the slide rail, and two ends of a return spring connected to the card plate and the slide rail respectively; the spring force of the return spring pushes the card plate away from the card slot, thereby causing the valve stem to descend and the spring force of the return spring to reset the card plate along the slide rail, eliminating the gap between the multiple horizontal elongated holes of the card plate and the upper ends of the multiple push rods.

[0013] Preferably, the central mechanism includes a hollow shaft tube, with templates installed at both the upper and lower parts, and a capsule installed between the templates. Multiple internal circulation inlets are provided on the upper sidewall of the shaft tube, and multiple internal circulation outlets are provided on the lower sidewall. A lower connector is provided at the bottom end of the shaft tube. Multiple heaters are installed in the middle of the sidewall of the shaft tube. A driver is installed on the upper part of the shaft tube, and an axial flow impeller is concentrically mounted on the output shaft of the driver. The axial flow impeller is located inside the shaft tube, between the multiple internal circulation inlets and outlets. Temperature sensors and other intelligent probes are provided on both templates. The lower connector is used to connect to the upper flow pipe and the return pipe. The medium is input into the shaft tube through the lower connector and passes through the multiple internal circulation inlets of the shaft tube. The medium is introduced into the capsule through the circulation outlet and multiple internal circulation inlets, causing the capsule to expand and shape and cure the aircraft tire blank. Multiple heaters provide secondary heating to the medium, thereby precisely controlling the medium temperature. At the same time, temperature sensors on two templates detect the medium temperature in the upper and lower parts of the capsule. When the upper temperature is higher than the lower temperature, the driver drives the axial flow impeller to rotate. The axial flow impeller pushes the medium inside the shaft tube downward, so that the medium in the upper part of the capsule enters the shaft tube through the internal circulation inlet and then enters the lower part of the capsule through the internal circulation outlet, realizing the upper and lower internal circulation of the medium in the capsule. This makes the temperature of the medium in the capsule more uniform and improves the shaping and curing effect of the aircraft tire.

[0014] Preferably, it also includes a baffle block, which is installed at the lower end of the axial flow impeller. The baffle block slides and closes the inner circulation outlet of the shaft tube from the inside. When the axial flow impeller rotates, it drives the baffle block to rotate, so that the baffle block sequentially closes or opens multiple inner circulation outlets of the shaft tube, thereby realizing the intermittent spraying of medium from multiple inner circulation outlets and improving the medium flow effect at the lower part of the capsule.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: multiple vulcanization sites are set as a vulcanization group, and the medium is recycled in a small range among multiple vulcanization sites in the same group. The modular design has a high degree of integration and can control the pressure and temperature of the vulcanization medium in multiple vulcanization sites. The vulcanization medium is recycled among multiple vulcanization sites, so that the high-temperature medium discharged from the capsule can enter the next vulcanization site more directly, shortening the heat dissipation path and being reused before a large amount of heat is lost from the medium, reducing the waste of heat and medium. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram of valve group one or valve group two; Figure 3 This is a rear view schematic diagram of valve group one or valve group two; Figure 4 This is a front cross-sectional view of either valve group one or valve group two in the fully closed state. Figure 5 This is a front section diagram of the valve assembly one or valve assembly two in the interlocked open state. Figure 6 It is a structural diagram showing the disassembled state of the valve core, valve stem, groove, push rod, retaining plate, return spring, and slide rail. Figure 7 It is a structural diagram showing the interlocking state of the valve body, valve stem, groove, push rod, retaining plate, return spring, and slide rail. Figure 8 This is a front section diagram of the central mechanism; Figure 9 This is a partial sectional view of the central structure. Figure 10 It is an exploded structural diagram of the shaft tube, lower connector, heater, driver, axial flow impeller and baffle.

[0017] The following components are labeled in the attached diagram: 1. Valve block body; 2. Main connector; 3. Solenoid valve one; 4. Solenoid valve two; 5. Valve shell; 6. Valve core; 7. Valve stem; 8. Gantry; 9. Electromagnetic push rod; 10. Slot; 11. Top rod; 12. Card plate; 13. Return spring; 14. Slide rail; 15. Shaft tube; 16. Lower connector; 17. Heater; 18. Driver; 19. Axial flow impeller; 20. Stop block. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0019] Example 1 like Figure 1As shown, the system includes multiple vulcanizing stages, each equipped with a central mechanism containing a capsule. Each capsule has a pipeline interface for inputting and discharging the vulcanizing medium. A valve group one has an output end and multiple input ends. Multiple control valves are installed at the input ends of valve group one, and their input ports are connected to the pipeline interfaces of the multiple vulcanizing stages via multiple return pipelines. The output end of valve group one is connected to the input end of a pump group via a delivery pipe. A valve group two has an input end and multiple output ends. The input end of valve group two is connected to the output end of the pump group via a delivery pipe. Multiple control valves are installed at the output ends of valve group two, and their output ports are connected to the multiple vulcanizing stages via multiple upstream pipelines. The system includes: a pipeline interface connection; a main medium source, which is connected to one input end of valve group one via a main pipeline for supplying the medium to the system; a controller, electrically connected to multiple control valves one and two, for controlling the orderly opening and closing of the multiple control valves one and two, so that the sulfurizing medium can be circulated between multiple sulfurizing levels; a bypass pipe, the input end of which is connected to the output end of valve group one, and the output end of which is connected to the input end of valve group two, with a valve installed on the bypass pipe; a medium transfer tank, the input end of which is connected to one output end of valve group two via a transfer inlet pipe, and the output end of which is connected to one input end of valve group one via a transfer outlet pipe, with valves installed on both the transfer inlet and outlet pipes; and check valves installed on multiple return pipelines and multiple upstream pipelines.

[0020] Multiple vulcanization stations are set up as a vulcanization group. This pipeline facility allows the vulcanization medium to be circulated among multiple vulcanization stations in the same vulcanization group. The vulcanization of aircraft tires includes a molding stage and a curing stage. In the same group, the number of vulcanization stations is set based on the ratio of vulcanization time to preparation time. In this embodiment, the ratio is 5:1, and 4 vulcanization stations are set up. This setting has a certain time margin. The work process includes an initial stage and a cyclical work stage; The initial stage is as follows: After the preparation work at vulcanizing station one is completed, control valve one connected to the main pipeline on controller control valve group one is opened, and the other control valves are closed. Control valve two connected to the upstream pipe of vulcanizing station one on controller control valve group two is opened, and the other control valves are closed. The pump group operates and, through conveying pipe one, valve group one, and the main pipeline, inputs the medium supplied by the main medium source into the central mechanism of vulcanizing station one through conveying pipe two, valve group two, and the upstream pipeline. The medium temperature is adjusted to the molding temperature, causing the bladder of vulcanizing station one to expand and maintain a certain pressure, which expands the inside of the aircraft tire blank and cooperates with the mold to shape the aircraft tire blank. During the aircraft tire shaping at vulcanizing station one, the preparation work for vulcanizing station two, vulcanizing station three, and vulcanizing station four is carried out in sequence. After the preparation work for vulcanizing station two is completed, the control valve one connected to the upstream pipe of vulcanizing station two is opened, and the other control valves are closed. Control valve 2 corresponding to chemical processing position 1 is closed, and control valve 2 corresponding to sulfur processing position 2 is opened. The above operation is repeated to shape the aircraft tire blank on sulfur processing position 2. During the shaping process of the aircraft tire blank on sulfur processing position 2, multiple control valves 2 of valve group 2 are switched, the pump group runs to pressurize the bladder of sulfur processing position 1 to the curing pressure, and the medium temperature is adjusted to the vulcanization temperature to cure the aircraft tire on sulfur processing position 1. After the preparation work of sulfur processing position 3 is completed, the above operation is repeated to shape the aircraft tire on sulfur processing position 3. After the shaping of the aircraft tire blank on sulfur processing position 2 is completed, multiple control valves 2 of valve group 2 are switched, the pump group runs to pressurize the bladder of sulfur processing position 2 to the curing pressure, and the aircraft tire on sulfur processing position 2 is cured. After the aircraft tire on sulfur processing position 1 is cured, the initial stage is completed, and the cycle work stage begins. The specific working phases of the cycle are as follows: Control valve 1, connected to the main pipe on valve group 1, is closed; control valve 1, connected to the return pipe of sulfurizing level 1, is open. Control valve 2, connected to the upstream pipe of sulfurizing level 4 on valve group 2, is open; other control valves are closed. The bypass valve is open, allowing the high-temperature medium in valve group 1 to be directly input into valve group 2 through the bypass pipe, bypassing the pump group and directly inputting into sulfurizing level 4. After the pressure in sulfurizing level 4 and sulfurizing level 1 is balanced, the bypass valve is closed to reduce the obstruction effect of the pump group initially. The pump group operates to directly transport most of the high-temperature medium in sulfurizing level 1 to sulfurizing level 4 for shaping the aircraft tires. Excess high-temperature medium in sulfurizing level 1 is temporarily stored in the medium transfer tank through valve group 2 and the transfer inlet pipe. The aircraft tires in sulfurizing level 1 are removed, and preparation work is carried out on sulfurizing level 1. The medium in the medium transfer tank is transferred through the transfer outlet pipe, valve group 1, pump group, and valve group 2... The flow pipe is fed into the corresponding vulcanizing station three, initiating the curing stage of the aircraft tire at vulcanizing station three. Once the aircraft tire at vulcanizing station two has completed the curing stage, vulcanizing station one is ready. The corresponding control valve one on adjusting valve group one is opened and closed, and the corresponding control valve two on adjusting valve group two is opened and closed, allowing the high-temperature medium in vulcanizing station two to be directly fed into vulcanizing station one. The above operation is repeated, causing vulcanizing stations one, two, three, and four to work in a cyclical manner. The high-temperature medium circulates according to the pattern of vulcanizing station one to vulcanizing station four, vulcanizing station two to vulcanizing station one, vulcanizing station three to vulcanizing station two, vulcanizing station four to vulcanizing station three, and vulcanizing station one to vulcanizing station four. During the above process, the lost medium is replenished in real time through the main medium source, valve group one, pump group, and valve group two. The vulcanizing station that has completed molding is pressurized according to the program to make the medium pressure reach the curing requirements. This system optimizes the vulcanization pipeline system for four vulcanization stages, allowing the medium to circulate within a small range among the four vulcanization stages in the same group. The modular design has a high degree of integration and enables pressure and temperature control of the vulcanization medium at the four vulcanization stages. The circulation of the vulcanization medium among the four vulcanization stages allows the high-temperature medium discharged from the capsule to enter the next vulcanization stage more directly, shortening the heat dissipation path and enabling the medium to be reused before a large amount of heat is lost, thus reducing the waste of heat and medium.

[0021] Example 2 like Figures 1 to 7 As shown, based on Embodiment 1, valve assembly one includes: The valve block body 1 has an internal cavity. The main connector 2, which communicates with the cavity, is provided on the side wall of the valve block body 1. The top wall of the valve block body 1 has multiple mounting holes that communicate with the cavity. Multiple electrically controlled valves 3 and multiple electrically controlled valves 4 are respectively installed on the valve block body 1 through multiple mounting holes. The multiple electrically controlled valves 3 and multiple electrically controlled valves 4 are respectively connected to the chamber of the valve block body 1 through multiple mounting holes. Each of the multiple electrically controlled valves 3 and multiple electrically controlled valves 4 is provided with a pipeline interface 2. An interlocking assembly is provided between multiple electrically controlled valves 3, which locks the other multiple electrically controlled valves 3 when one electrically controlled valve 3 is opened; the electrically controlled valve 3 includes: The valve housing 5 is threadedly installed on the mounting hole of the valve block body 1 through the threaded interface. A threaded joint is provided on the side of the valve housing 5. The valve core 6 is slidably installed inside the valve housing 5. The valve stem 7 is provided on the upper part of the valve core 6 and extends out of the valve housing 5. A gantry 8 is installed on the valve block body 1, and an electromagnetic push rod 9 is installed on the gantry 8. The lower end of the telescopic rod of the electromagnetic push rod 9 is connected to the valve stem 7; the interlock assembly includes: Multiple slots 10 are provided on the upper sidewalls of multiple valve stems 7; The lower end is rotatably connected to multiple valve stems 7 and multiple push rods 11. The multiple push rods 11 are inclined. The upper end of the multiple push rods 11 is hinged to the horizontal elongated hole of the clamping plate 12. The clamping plate 12 is horizontally slidably connected to the gantry 8. Multiple clamping blocks matching multiple clamping slots 10 are provided on the clamping plate 12. It also includes a slide rail 14 horizontally installed on the gantry 8. The clamping plate 12 is horizontally slidably installed on the slide rail 14. The two ends of the return spring 13 are respectively connected to the clamping plate 12 and the slide rail 14.

[0022] Valve group one and valve group two have the same structure. Both control valve one and control valve two are electrically controlled valve one 3. The pipeline interfaces two of multiple electrically controlled valve one 3 in valve group one are connected to the output ends of multiple return pipes. The pipeline interfaces two of multiple electrically controlled valve one 3 in valve group two are connected to the input ends of multiple upstream pipes. Multiple electrically controlled valve two 4 and multiple pipeline interfaces two are used to connect the main pipe, intermediate inlet pipe, and intermediate outlet pipe. The main connector 2 of valve group one is used to connect to delivery pipe one, and the main connector 2 of valve group two is used to connect to delivery pipe two. This integrated valve group module facilitates layout and simplifies pipeline design. Pipeline interface two is a threaded connector; the electromagnetic push rod 9 is installed on the valve block body 1 through the gantry 8. The electromagnetic push rod 9 is electrically connected to the controller to realize automatic control. The telescopic rod of the electromagnetic push rod 9 pushes the valve rod 7 to rise and fall. The valve rod 7 pushes the valve core 6 to rise and fall. When the valve core 6 descends to the bottom threaded interface of the valve body 5, the valve core 6 cuts off the installation port and the threaded connector, and is solidly closed. When the valve core 6 rises to the top of the valve body 5, the installation port and the threaded connector are connected, and the valve is opened. The technology is mature and reliable. When multiple valve cores 6 descend to the bottom of multiple valve bodies 5 to cut off the medium, multiple locking blocks of the locking plate 12 are horizontally aligned with multiple locking slots 10, and multiple push rods 11 are in an inclined state. When a valve stem 7 and the valve core 6 below it are lifted to connect the medium, the valve stem 7 pushes the lower end of the push rod 11 upward, so that the push rod 11 gradually becomes horizontal from the inclined state, thereby pushing the locking plate 12 horizontally, so that the locking blocks of the locking plate 12 are respectively locked into the other multiple locking slots 10, thereby locking the other multiple valve stems 7. The setting of the horizontal elongated hole on the locking plate 12 prevents the upper end of the other multiple push rods 11 from moving when the locking plate 12 slides, so as to achieve an interlocking effect and improve reliability. The elastic force of the return spring 13 pushes the locking plate 12 away from the locking slot 10, so that the valve stem 7 descends and the elastic force of the return spring 13 resets the locking plate 12 along the slide rail 14, eliminating the gap between the multiple horizontal elongated holes of the locking plate 12 and the upper ends of the multiple push rods 11.

[0023] Example 3 like Figure 1 , Figure 8 , Figure 9 and Figure 10 As shown, based on Embodiment 1, the central mechanism includes a hollow shaft tube 15. Templates are installed on both the upper and lower parts of the shaft tube 15, and capsules are installed between the templates. Multiple internal circulation inlets are provided on the upper part of the side wall of the shaft tube 15, and multiple internal circulation outlets are provided on the lower part of the side wall of the shaft tube 15. A lower connector 16 is provided at the bottom end of the shaft tube 15. Multiple heaters 17 are installed in the middle of the side wall of the shaft tube 15. A driver 18 is installed on the upper part of the shaft tube 15. An axial flow impeller 19 is concentrically installed on the output shaft of the driver 18. The axial flow impeller 19 is located inside the shaft tube 15 and between the multiple internal circulation inlets and multiple internal circulation outlets. It also includes a stop block 20, which is installed at the lower end of the axial flow impeller 19. The stop block 20 slides and closes the internal circulation outlet of the shaft tube 15 from the inside.

[0024] Temperature sensors and other intelligent probes are installed on both templates. The lower connector 16 is used to connect to the upper flow pipe and the return pipe. The medium is input into the shaft tube 15 through the lower connector 16. The medium is input into the capsule through multiple internal circulation outlets and multiple internal circulation inlets of the shaft tube 15, causing the capsule to expand to shape and solidify the aircraft tire blank. Multiple heaters 17 provide secondary heating to the medium, thereby precisely controlling the medium temperature. At the same time, the temperature sensors on the two templates detect the medium temperature in the upper and lower parts of the capsule. When the upper temperature is higher than the lower temperature, the driver 18 drives the axial flow blades. As the impeller 19 rotates, it pushes the medium inside the shaft tube 15 downwards, causing the medium in the upper part of the capsule to enter the shaft tube 15 through the internal circulation inlet and then enter the lower part of the capsule through the internal circulation outlet. When the impeller 19 rotates, it drives the baffle 20 to rotate, causing the baffle 20 to sequentially close or open multiple internal circulation outlets of the shaft tube 15, thereby achieving intermittent spraying of the medium from multiple internal circulation outlets, improving the flow effect of the medium in the lower part of the capsule, realizing the upper and lower internal circulation of the medium inside the capsule, thus making the temperature of the medium inside the capsule more uniform, and improving the molding and curing effect of the aircraft tire.

[0025] like Figures 1 to 10As shown, the present invention discloses a vulcanization pipeline facility for aircraft tires. During operation, four vulcanization stations are initially set up as a vulcanization group. Multiple electromagnetic push rods 9 control the raising and lowering of multiple valve rods 7 and multiple valve cores 6 according to instructions, thereby opening and closing designated electrically controlled valves 3 and 4 according to a program. This causes vulcanization stations 1, 2, 3, and 4 to circulate sequentially. The high-temperature medium circulates according to the pattern of vulcanization stations 1 to 4, 2 to 1, 3 to 2, 4 to 3, and 1 to 4. During this process, the lost medium is replenished in real time through the main medium source, valve group 1, pump group, and valve group 2. The vulcanization stations that have completed molding are pressurized according to the program to achieve the required curing pressure. The operation of a single vulcanization station involves preparation, loading the aircraft tire blank onto the central mechanism of the designated vulcanization station, and completing the preparation. Afterwards, most of the high-temperature medium in the capsule of the previous vulcanizing station is directly input into the capsule of the designated vulcanizing station through the pipeline system. This causes the capsule to expand and, in conjunction with the molding die, shape the aircraft tire blank. A small portion of the high-temperature medium is input into the transfer medium tank through the pipeline system. Once the aircraft tire at the designated vulcanizing station is shaped, the medium in the transfer medium tank is pressurized by the pump unit and input into the designated vulcanizing station, increasing the pressure of the medium inside the capsule. At the same time, multiple heaters 17 heat the medium inside the capsule, causing the aircraft tire to cure. During the above shaping and curing process, the driver 18 drives the axial flow impeller 19 to rotate. The axial flow impeller 19 pushes the medium inside the shaft tube 15 downwards, causing the medium at the top of the capsule to enter the shaft tube 15 through the internal circulation inlet and then enter the bottom of the capsule through the internal circulation outlet. This achieves internal circulation of the medium inside the capsule, making the temperature of the medium inside the capsule more uniform and improving the shaping and curing effect of the aircraft tire.

[0026] The main functions achieved by this invention are: 1. Optimize the vulcanization pipeline system for multiple vulcanization stages. The medium is circulated within a small range among multiple vulcanization stages in the same group. The modular design has a high degree of integration and can control the pressure and temperature of the vulcanization medium at multiple vulcanization stages. The vulcanization medium is circulated among multiple vulcanization stages, allowing the high-temperature medium discharged from the capsule to enter the next vulcanization stage more directly, shortening the heat dissipation path, and reusing the medium before a large amount of heat is lost, reducing the waste of heat and medium. 2. The medium inside the capsule is forced to circulate by the driver 18 and the axial flow impeller 19 to reduce the temperature difference between the top and bottom of the capsule, improve the uniformity of vulcanization, and improve product quality. 3. The number of vulcanization sites and the vulcanization sequence are set according to the vulcanization time to achieve near-continuous cyclic production and improve overall efficiency; 4. An interlocking assembly is installed between the multiple electrically controlled valves 3 in the valve group. The interlocking assembly locks the other multiple electrically controlled valves 3 when one electrically controlled valve 3 is opened, thereby improving reliability.

[0027] The vulcanization pipeline facility for aircraft tires of this invention uses common mechanical methods for installation, connection, or setup, and any method that achieves the desired beneficial effects can be implemented. The valve assembly 1, valve assembly 2, main medium source, check valve, valve, medium transfer tank, pump assembly, valve block body 1, main connector 2, electrically controlled valve 1 3, electrically controlled valve 2 4, valve shell 5, valve core 6, valve stem 7, electromagnetic push rod 9, return spring 13, slide rail 14, shaft tube 15, lower connector 16, heater 17, driver 18, axial flow impeller 19, bladder, temperature sensor, intelligent probe, and template of this invention are all commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative effort from those skilled in the art.

[0028] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A vulcanization pipeline system for aircraft tires, characterized in that, include: Multiple sulfidation stations are provided, each with a central mechanism containing a capsule. Each capsule in the multiple central mechanisms is equipped with a pipeline interface, through which the sulfidation medium is introduced into the capsule and discharged from the capsule. Valve group one is provided with an output end and multiple input ends. Multiple control valves are installed on the multiple input ends of valve group one. The input ports of the multiple control valves are connected to the pipeline interfaces of multiple sulfurization levels through multiple return pipelines. The output end of valve group one is connected to the input end of pump group one through delivery pipe one. Valve group two is provided with an input end and multiple output ends. The input end of valve group two is connected to the output end of pump group two through delivery pipe two. Multiple control valves two are installed on the multiple output ends of valve group two respectively. The output ports of multiple control valves two are connected to the pipeline interfaces of multiple sulfurization levels through multiple upstream pipelines. The main medium source, which is connected to one input terminal of valve group one through the main pipeline, is used to deliver the medium to the system; The controller is electrically connected to multiple control valves (Valve 1 and Valve 2) and is used to control the orderly opening and closing of the multiple control valves (Valve 1 and Valve 2) so that the sulfurizing medium can be circulated between multiple sulfurizing levels.

2. The vulcanization pipeline facility for aircraft tires as described in claim 1, characterized in that, It also includes a bypass pipe, the input end of which is connected to the output end of valve group one, and the output end of which is connected to the input end of valve group two. A valve is installed on the bypass pipe.

3. The vulcanization pipeline facility for aircraft tires as described in claim 1, characterized in that, It also includes a medium transfer tank. The input end of the medium transfer tank is connected to one output end of valve group two through a transfer inlet pipe, and the output end of the medium transfer tank is connected to one input end of valve group one through a transfer outlet pipe. Valves are installed on both the transfer inlet pipe and the transfer outlet pipe.

4. The vulcanization pipeline facility for aircraft tires as described in claim 3, characterized in that, One-way valves are installed in multiple return lines and multiple upstream lines.

5. The vulcanization pipeline facility for aircraft tires as described in claim 1, characterized in that, Valve assembly one includes: A valve block body (1) with an internal cavity is provided. A main connector (2) communicating with the cavity is provided on the side wall of the valve block body (1). Multiple mounting holes communicating with the cavity are provided on the top wall of the valve block body (1). Multiple electrically controlled valves 1 (3) and multiple electrically controlled valves 2 (4) are respectively installed on the valve block body (1) through multiple mounting holes. Multiple electrically controlled valves 1 (3) and multiple electrically controlled valves 2 (4) are respectively connected to the chamber of the valve block body (1) through multiple mounting holes. Multiple electrically controlled valves 1 (3) and multiple electrically controlled valves 2 (4) are each provided with a pipeline interface 2. An interlocking assembly is provided between multiple electrically controlled valves (3), which locks the other multiple electrically controlled valves (3) when one electrically controlled valve (3) is opened.

6. The vulcanization pipeline facility for aircraft tires as described in claim 5, characterized in that, The electrically controlled valve (3) includes: The valve housing (5) is threadedly installed on the mounting hole of the valve block body (1) through the threaded interface. A threaded joint is provided on the side of the valve housing (5). The valve core (6) is slidably installed inside the valve housing (5). A valve stem (7) is provided on the upper part of the valve core (6). The valve stem (7) extends out of the valve housing (5). A gantry (8) is installed on the valve block body (1), and an electromagnetic push rod (9) is installed on the gantry (8). The lower end of the telescopic rod of the electromagnetic push rod (9) is connected to the valve stem (7).

7. The vulcanization pipeline facility for aircraft tires as described in claim 6, characterized in that, The interlocking components include: Multiple slots (10) are provided on the upper sidewall of multiple valve stems (7); The lower end is rotatably connected to multiple valve stems (7) and multiple push rods (11). The multiple push rods (11) are inclined. The upper end of the multiple push rods (11) is hinged to the horizontal elongated hole of the card plate (12). The card plate (12) is horizontally slidably connected to the gantry (8). Multiple card blocks matching multiple card slots (10) are provided on the card plate (12).

8. The vulcanization pipeline facility for aircraft tires as described in claim 7, characterized in that, It also includes a slide rail (14) that is horizontally mounted on the gantry (8), a plate (12) that is horizontally slidably mounted on the slide rail (14), and the two ends of the return spring (13) are connected to the plate (12) and the slide rail (14) respectively.

9. The vulcanization pipeline facility for aircraft tires as described in claim 1, characterized in that, The central mechanism includes a hollow shaft tube (15), with templates installed on both the upper and lower parts of the shaft tube (15), and capsules installed between the templates. Multiple internal circulation inlets are provided on the upper side wall of the shaft tube (15), and multiple internal circulation outlets are provided on the lower side wall of the shaft tube (15). A lower connector (16) is provided at the bottom end of the shaft tube (15). Multiple heaters (17) are installed in the middle of the side wall of the shaft tube (15). A driver (18) is installed on the upper part of the shaft tube (15). An axial flow impeller (19) is concentrically installed on the output shaft of the driver (18). The axial flow impeller (19) is located inside the shaft tube (15) and between the multiple internal circulation inlets and multiple internal circulation outlets.

10. The vulcanization pipeline facility for aircraft tires as described in claim 9, characterized in that, It also includes a baffle (20), which is installed at the lower end of the axial flow impeller (19) and slides to close the inner circulation outlet of the shaft tube (15) from the inside.

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