A tire shaping and curing press

Abstract

The application provides a tire shaping and vulcanizing machine, which comprises a support frame, a segmented mold device, a pressurizing device, a center mechanism and a mold opening and closing driving mechanism. In the above components, the mold opening and closing driving mechanism drives the segmented mold device relative to the pressurizing device by a third motor driving mechanism, and the internal components of the segmented mold device and the center mechanism are also driven by motor driving mechanisms, so that the main components of the tire shaping and vulcanizing machine are driven by electric energy, and the pressurizing device is controlled by gas pressure. In the above technical scheme, the mold is opened and closed by the third motor driving mechanism, the center mechanism, the segmented mold device and the like are driven by motor driving mechanisms, and the pressurizing device is controlled by gas pressure, without hydraulic systems participating in the whole process, so that the tire shaping and vulcanizing machine has simple and reliable structure, the motor driving mechanisms can be designed in a modular way, and are convenient to maintain and replace.

Description

Technical Field

[0001] This application relates to the field of tire technology, and more particularly to a tire shaping and vulcanizing machine. Background Technology

[0002] Current tire vulcanizing machines can be broadly classified into two types: mechanical double-mold vulcanizing machines and hydraulic double-mold vulcanizing machines. As the names suggest, mechanical double-mold vulcanizing machines primarily use a motor and reducer as output power, achieving the opening and closing pressure of the two molds through mechanical transmission. Hydraulic double-mold vulcanizing machines primarily use hydraulic drive as output power, achieving the opening and closing pressure of the two molds through hydraulic transmission. The mechanical double-mold vulcanizing machine was invented first, followed by the hydraulic double-mold vulcanizing machine. Due to limitations of the era and the technological environment at the time, the most significant drawback of the mechanical double-mold vulcanizing machine is uneven mold closing force, failing to meet the technological requirements of radial tires. The disadvantage of the hydraulic double-mold vulcanizing machine is the instability of the hydraulic system, which is prone to leakage. Summary of the Invention

[0003] The purpose of this utility model application is to provide a tire shaping and vulcanizing machine to improve the reliability of the tire shaping and vulcanizing machine.

[0004] This application provides a tire shaping and vulcanizing machine, which includes: a support frame; The movable mold device includes a movable mold support that can slide relative to the support frame, a movable locking sleeve that is slidably connected to the movable mold support and can rotate relative to the movable mold support, wherein the movable locking sleeve is connected to a movable mold; it also includes a first motor drive mechanism that is fixedly connected to the movable mold support and is used to drive the movable locking sleeve to slide, and a swing mechanism for driving the movable locking sleeve to swing relative to the movable mold support; The pressurizing device includes an annular cylinder fixedly connected to a support frame, an annular plunger slidably assembled in the cylinder, and a hot plate fixedly connected to the annular plunger; it also includes a gas supply system that supplies gas to the annular cylinder. The central mechanism includes a stacked upper ring fixing plate and a lower ring fixing plate, the upper ring fixing plate being fixedly connected to the support frame; it also includes a central rod that can slide relative to the lower ring fixing plate, a lifting mechanism for driving the lower ring fixing plate to move relative to the upper ring fixing plate, and a second motor drive mechanism for driving the central rod to extend and retract; the central rod passes through the inner ring of the annular cylinder. The mold opening and closing drive mechanism includes a third motor drive mechanism for driving the movable mold support to move relative to the annular cylinder.

[0005] In the above technical solution, the movable mold support is moved relative to the annular cylinder by the third motor drive mechanism to realize the opening and closing of the mold. The central mechanism, movable mold device and the like are all driven by the motor drive mechanism, while the pressurization device is pneumatic. There is no hydraulic system involved in the whole process, which makes the entire tire shaping vulcanizing machine simple and reliable in structure. The motor drive mechanism can adopt a modular design, which is convenient for maintenance and replacement.

[0006] In one specific implementation scheme, the gas supply system includes a first high-pressure gas source, which is connected to the inner cavity of the annular cylinder via a gas supply pipeline; it also includes a shut-off valve disposed on the gas supply pipeline for controlling the on / off state of the gas supply pipeline, a filter pressure regulating valve disposed on the gas supply pipeline, and a first switch control valve disposed on the gas supply pipeline; wherein the filter pressure regulating valve is located between the shut-off valve and the first switch control valve, with the shut-off valve located upstream and the first switch control valve located downstream.

[0007] In one specific implementation, the system further includes a recovery pipeline connected to the gas supply pipeline, wherein the connection point between the gas supply pipeline and the recovery pipeline is located downstream of the first switch control valve. It also includes a second on / off control valve installed on the recovery pipeline.

[0008] In one specific implementation, the system further includes a gas replenishment line, wherein the gas replenishment line is connected to the gas supply line at a location between the filter regulating valve and the first switch control valve; It also includes a third switch control valve and a throttle valve installed on the gas supply line.

[0009] In one specific implementation scheme, a pressure transmitter and a controller are also included; the pressure transmitter is used to detect the gas pressure in the gas supply line. When the pressure value detected by the pressure transmitter exceeds the set value, the controller controls the first switch control valve to close.

[0010] In one specific implementation, the first switch control valve, the second switch control valve, and the third switch control valve are all pneumatic valves. It also includes a control gas path, which comprises a second high-pressure gas source, and a first branch gas path, a second branch gas path, and a third branch gas path connected in parallel to the second high-pressure gas source; wherein... The first branch gas path is connected to the control terminal of the first switch control valve, and a first solenoid valve is provided on the first branch gas path. The second branch gas path is connected to the control terminal of the second switch control valve, and a second solenoid valve is provided on the second branch gas path; The third branch gas path is connected to the control terminal of the third switch control valve, and a third solenoid valve is provided on the third branch gas path.

[0011] In one specific implementation scheme, the support frame includes a column, a crossbeam slidably connected to the column, and a support platform fixedly connected to the column; wherein... The movable mold bracket is fixedly connected to the crossbeam; the annular cylinder is fixedly connected to the support platform; and the upper ring fixing plate is fixedly connected to the support platform.

[0012] In one specific implementation, the mold opening and closing drive mechanism further includes a retaining ring, and the third motor drive mechanism includes a third servo motor fixedly connected to the support frame, and a third electric cylinder connected to the third servo motor. The third electric cylinder is fixedly connected to the crossbeam through the retaining ring.

[0013] In one specific implementation, the first motor drive mechanism includes a first electric cylinder fixedly connected to the movable mold bracket, and a first servo motor fixedly connected to the first electric cylinder; The second motor drive mechanism includes a second electric cylinder fixed relative to the lower ring fixing plate, and a second servo motor fixedly connected to the second electric cylinder.

[0014] In one specific implementation, the swing mechanism includes a mold-locking cylinder that rotates relative to the movable mold support, and a mold-locking connecting rod hinged to the mold-locking cylinder. The mold-locking connecting rod is fitted onto the movable locking sleeve and fixedly connected to the movable locking sleeve. Attached Figure Description

[0015] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments provided according to this disclosure and should not be construed as limiting the scope of this disclosure.

[0016] Figure 1 This is a schematic diagram of the structure of a tire shaping and vulcanizing machine provided in an embodiment of this application; Figure 2 This is a reference diagram showing the usage status of a tire shaping and vulcanizing machine provided in an embodiment of this application; Figure 3 This is a schematic diagram of the mold opening and closing drive mechanism provided in an embodiment of this application; Figure 4 for Figure 3 A magnified view of a portion of point A in the middle; Figure 5 This is a schematic diagram of the structure of the flexible mold device provided in the embodiments of this application; Figure 6 This is a schematic diagram of the structure of the swing mechanism provided in the embodiments of this application; Figure 7 A schematic diagram of the central mechanism provided in the embodiments of this application; Figure 8 This is a schematic diagram of the pressurization device provided in the embodiments of this application; Figure 9 A schematic diagram of the air supply system of the pressurization device provided in the embodiments of this application. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this application clearer, the application will now be described in further detail with reference to the accompanying drawings.

[0018] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] To facilitate understanding of the tire shaping and vulcanizing machine provided in this application embodiment, its application scenario is first described. The tire shaping and vulcanizing machine provided in this application embodiment is used for shaping and vulcanizing tires. Current tire shaping and vulcanizing machines use hydraulic power as the drive, but hydraulic drives are prone to problems such as system instability and leakage. Therefore, this application embodiment provides a tire shaping and vulcanizing machine to improve its reliability. A detailed description follows with reference to specific drawings and embodiments.

[0020] refer to Figure 1 and Figure 2 As shown, Figure 1 This paper shows a schematic diagram of the structure of a tire shaping and vulcanizing machine provided in an embodiment of this application. Figure 2This diagram illustrates the usage state of the tire vulcanizing machine provided in this embodiment. The tire vulcanizing machine mainly includes a support frame 100, a movable mold device 200, a pressurizing device 300, a central mechanism 400, and a mold opening and closing drive mechanism 500. The support frame 100 serves as a support component in the tire vulcanizing machine, supporting the movable mold device 200, the pressurizing device 300, the central mechanism 400, and the mold opening and closing drive mechanism 500. The movable mold device 200, the pressurizing device 300, and the central mechanism 400 cooperate in vulcanizing the tire, while the mold opening and closing drive mechanism 500 provides power for opening and closing the mold during the vulcanization process. A detailed description follows with reference to the accompanying drawings and embodiments.

[0021] Continue to refer to Figure 1 and Figure 2 As shown, the support frame 100 provided in this embodiment is a frame structure. When cooperating with other components, the movable mold device 200 and the pressurizing device 300 are both arranged on the support frame 100, with the pressurizing device 300 located below the movable mold device 200. Furthermore, the pressurizing device 300 is fixedly connected to the support frame 100, and the central mechanism 400 passes through the pressurizing device 300, while the movable mold device 200 is slidably engaged with the support frame 100. When the mold opening and closing drive mechanism 500 is driven, it can drive the movable mold device 200 to slide relative to the support frame 100. For example, when the movable mold device 200 slides downward to a first set position, a space for accommodating the tire is formed between the movable mold device 200 and the pressurizing device 300, and the pressurizing device 300 can apply pressure to the tire, at which point it is in a closed mold state. When the movable mold device 200 slides upward to the second set position, the distance between the movable mold device 200 and the pressure device 300 increases. At this time, it is in the mold opening state, and the tire can be placed on the pressure device 300 in this state.

[0022] Please refer to the above. Figure 3 As shown, Figure 3 A schematic diagram of the opening and closing mold driving mechanism 500 provided in this application embodiment is shown. The opening and closing mold driving mechanism 500 provided in this application embodiment includes a third motor driving mechanism 510, which is used to drive the movable mold device 200 to slide relative to the support frame 100. For example, the third driving mechanism may include a third servo motor 512 and a third electric cylinder 511, wherein the third servo motor 512 is used to drive the third electric cylinder 511 to extend and retract, and the third electric cylinder 511 is fixedly connected to the movable mold device 200 so that the extension and retraction of the third electric cylinder 511 drives the movable mold device 200 to slide relative to the support frame 100.

[0023] Please refer to the above. Figure 5 As shown, Figure 5A schematic diagram of the structure of the movable mold device 200 provided in this application embodiment is shown. The movable mold device 200 provided in this application embodiment includes a movable mold support 210 that can slide relative to a support frame 100, and a movable locking sleeve 260 that is slidably connected to the movable mold support 210 and can rotate relative to the movable mold support 210, wherein the movable mold is connected to the movable locking sleeve 260. In addition, the movable mold device 200 also includes a first motor drive mechanism 220 fixedly connected to the movable mold support 210 and used to drive the movable locking sleeve 260 to slide, and a swing mechanism 230 used to drive the movable locking sleeve 260 to swing relative to the movable mold support 210. When the movable mold is connected to the movable locking sleeve 260, the connection between the movable mold and the movable locking sleeve 260 can be achieved through the cooperation of the first motor drive mechanism 220 and the swing mechanism 230.

[0024] Please refer to the above. Figure 6 As shown, Figure 6 A schematic diagram of the central mechanism 400 is shown. The central mechanism 400 includes a stacked upper ring fixing plate 470 and a lower ring fixing plate 450. The upper ring fixing plate 470 is fixedly connected to the support frame 100, while the lower ring fixing plate 450 is movable relative to the support frame 100, and its direction of movement is the same as the direction in which the movable mold device 200 slides relative to the support frame 100. Furthermore, the central mechanism 400 also includes a central rod 410 that can slide relative to the lower ring fixing plate 450, wherein the sliding direction of the central rod 410 is the same as the sliding direction of the lower ring fixing plate 450. In addition, the central mechanism 400 includes two driving mechanisms: a lifting mechanism 460 that drives the lower ring fixing plate 450 to move relative to the upper ring fixing plate 470, and a second motor driving mechanism 480 that drives the central rod 410 to extend and retract.

[0025] Please refer to the above. Figure 7 As shown, Figure 7 A schematic diagram of the pressurizing device 300 provided in this application is shown. The pressurizing device 300 provided in this application includes an annular cylinder fixedly connected to a support frame 100, an annular plunger 320 slidably mounted within the cylinder, and a heating plate 350 fixedly connected to the annular plunger 320. During operation, the tire can be pressurized by the sliding of the annular plunger 320, and the tire can be heated and vulcanized by the heating plate 350. When the annular plunger 320 is driven, the pressurizing device 300 also includes a gas supply system for supplying gas into the annular cylinder. Gas is introduced into the inner cavity of the annular cylinder through the gas supply system. Furthermore, when the pressurizing device 300 is engaged with a central mechanism 400, the central mechanism 400 passes through the inner ring of the annular cylinder, and a central rod 410 passes through the inner ring of the annular cylinder.

[0026] Furthermore, when the third motor drive mechanism 510 drives the movable mold device 200 to move relative to the pressurizing device 300, it also drives the movable mold support 210 to move relative to the annular cylinder.

[0027] Among the above technical solutions, the most significant features of this electric dual-mold vulcanizing machine are: firstly, its structure is relatively simple. The lower support frame 100 uses less material and is lightweight, while the column 120 is made of ultra-high-strength steel, which possesses high strength, high hardenability, good toughness, minimal deformation during quenching, high durability at high temperatures, and high creep strength. Secondly, the main components of the vulcanizing machine (moving mold device 200, pressurizing device 300, and central mechanism 400) are electrically driven, while non-main components are pneumatically controlled. There is no hydraulic system or hydraulic components throughout the entire process; the servo system with direct motor drive provides a fast response. With no hydraulic requirements, the structure is simple, and maintenance only requires checking the motor drive mechanism. Furthermore, the motor drive mechanism facilitates modular design, requiring only the motor and driver, simplifying wiring, eliminating complex hydraulic pipelines, saving space, and enabling compact integration with the equipment.

[0028] As can be seen from the above description, the movable mold support 210 is driven to move relative to the annular cylinder by the third motor drive mechanism 510 to realize the opening and closing of the mold. The central mechanism 400, movable mold device 200, etc. are all driven by motor drive mechanisms, while the pressurizing device 300 is pneumatic. There is no hydraulic system involved in the whole process, which makes the entire tire shaping vulcanizing machine simple and reliable in structure. The motor drive mechanism can adopt a modular design, which is convenient for maintenance and replacement.

[0029] Continue to refer to Figure 1 and Figure 2 As shown, in one feasible embodiment, the support frame 100 provided in this application includes columns 120, crossbeams 110, and support platforms 130. Multiple columns 120 are provided to support the crossbeams 110 and support platforms 130. The support platform 130 is fixedly connected to the columns 120, while the crossbeams 110 are slidably connected to the columns 120 and are located above the support platforms 130. An exemplary crossbeam is slidably connected to the columns 120 via a guide sleeve 111.

[0030] When used in conjunction with other structures, the movable mold support 210 is fixedly connected to the crossbeam 110; the annular cylinder is fixedly connected to the support platform 130, and the upper ring fixing plate 470 is also fixedly connected to the support platform 130. Additionally, a third motor drive mechanism 510 is also installed on the support platform 130 and connected to the crossbeam 110. During mold opening and closing, the third motor drive mechanism 510 drives the crossbeam 110 to slide relative to the column 120, thereby moving the movable mold device 200 closer to or further away from the pressurizing device 300 to achieve mold opening and closing.

[0031] Continue to refer to Figure 3 and Figure 4 As shown, Figure 4 It shows Figure 3A partially enlarged schematic diagram of section A. In one feasible embodiment, the mold opening and closing drive mechanism 500 provided in this application further includes a retaining ring 520, and the third motor drive mechanism 510 includes a third servo motor 512 fixedly connected to the support frame 100, and a third electric cylinder 511 connected to the third servo motor 512. The third electric cylinder 511 is fixedly connected to the crossbeam 110 via the retaining ring 520. In specific assembly, the third servo motor 512 in the mold opening and closing drive mechanism 500 is fixedly connected to the support frame 100, and the third electric cylinder 511 is also fixedly connected to the support frame 100. The telescopic end of the third electric cylinder 511 is connected to the crossbeam 110 via the retaining ring 520, and is pressed and tightened by the pressure cap 530, thereby stably connecting the third motor drive mechanism 510 and the crossbeam 110 and ensuring the reliability of the connection. In addition, when arranging the third motor drive mechanism 510, the number of third motor drive mechanisms 510 can be one, two, or more. Preferably, the number of third motor drive mechanisms 510 is two or more to provide greater driving force and retaining force during mold closing.

[0032] The third motor drive mechanism 510 features a simple structure, reduces costs, and eliminates the need for a hydraulic system and its components. Compared to existing hydraulic vulcanizing machines with cylinder-driven mold opening and closing mechanisms that require a hydraulic station for power and control via valve blocks and pipelines (e.g., adjusting overflow pressure, speed, or throttle valves on the valve block), the servo motor and electric cylinder drive completely eliminate the need for hydraulic components. Furthermore, the servo motor offers more precise and reliable control of position, speed, and pressure than hydraulic systems. The electric cylinder uses a servo encoder to determine the mold opening and closing position, eliminating the need for displacement sensors and reducing potential failure points. In addition, the third motor drive mechanism 510 is easy to operate and maintain, eliminating hydraulic leakage and protecting the environment. The original hydraulic mold opening and closing mechanism required adjustment at the vulcanizing trench valve block, making operation cumbersome and complex. The third motor drive mechanism 510 only requires parameter settings and servo adjustment, which can completely eliminate the hydraulic system, pipeline valve block hydraulic components, making its structure simple and easy to maintain. It completely solves the problem of hydraulic oil leakage, and the noise of the oil pump-free equipment is significantly reduced, greatly improving the working environment.

[0033] Continue to refer to Figure 5 and Figure 6 As shown, Figure 5 A schematic diagram of the structure of the flexible mold device provided in the embodiment of this application is shown. Figure 6 A schematic diagram of the swing mechanism provided in an embodiment of this application is shown.

[0034] The movable mold device for a tire vulcanizing machine provided in this application mainly includes a movable mold support 210, a movable locking sleeve 260, and a drive mechanism. The movable mold support 210 supports the movable mold locking sleeve 260 and the drive mechanism, and is used to assemble the movable mold device onto the crossbeam of the tire vulcanizing machine. The movable locking sleeve 260 is used to connect and disconnect the movable mold as needed, while the drive mechanism drives the movement of the movable locking sleeve 260, including but not limited to the extension and retraction of the movable locking sleeve 260 and the rotation required when connecting and disconnecting from the movable mold. For ease of understanding, the specific structure of each part of the movable mold device provided in this application embodiment is described in detail below with reference to the specific drawings.

[0035] Continue to refer to Figure 5 As shown, the movable mold support 210 provided in this embodiment is a frame structure that can be fixed on the crossbeam of the tire shaping vulcanizing machine to support the entire movable mold device. The movable locking sleeve 260 can be inserted into the movable mold support 210 and can slide relative to the movable mold support 210. Furthermore, the movable locking sleeve 260 can rotate relative to the movable mold support 210. When the movable locking sleeve 260 is assembled into the movable mold support 210, the first end of the movable locking sleeve 260 protrudes outside the movable mold support 210, and the first end of the movable mold is used to mate with the movable mold connecting flange 250 (the structure in which the movable mold and the movable locking sleeve 260 mate) in a groove. The other end of the movable locking sleeve 260 is the second end, which is located inside the movable mold support 210 and is used to connect to the first motor drive mechanism 220 that drives the movable locking sleeve 260 to extend and retract.

[0036] Specifically, the first motor drive mechanism 220 is fixed to the movable mold support 210, and the first motor drive mechanism 220 is located outside the movable mold support 210. The first motor drive mechanism 220 has a drive rod, which is nested with the movable locking sleeve 260 and used to drive the movable locking sleeve 260 to slide. Figure 5 The placement direction of the movable mold device shown is the reference direction. The movable locking sleeve 260 can slide back and forth in the vertical direction. The extension and retraction direction of the drive rod is also in the vertical direction. Thus, the movable locking sleeve 260 can be driven to move back and forth in the vertical direction by the first motor drive mechanism 220.

[0037] In addition to the first motor drive mechanism 220 described above, this embodiment of the application also includes a swing mechanism 230, which is used to drive the movable locking sleeve 260 to swing relative to the movable mold support 210. By swinging the movable locking sleeve 260 through the swinging of the swing mechanism 230, the locking and unlocking of the slot and the movable mold connecting flange 250 can be achieved.

[0038] by Figure 5The placement direction of the movable mold device shown is a reference direction. When the movable locking sleeve 260 needs to be connected to the movable mold, the first motor drive mechanism 220 first drives the movable locking sleeve 260 to descend to the first set position. At this time, the slot of the movable locking sleeve 260 is inserted into the movable mold connecting flange 250. Then, the swing mechanism 230 drives the movable locking sleeve 260 to swing at the first set angle, and the slot can lock the movable mold connecting flange 250, thereby locking and fixing the movable mold and the movable locking sleeve 260. When it is necessary to unlock the movable mold, the swing mechanism 230 drives the movable locking sleeve 260 to swing in the opposite direction at the first set angle, and the slot of the movable locking sleeve 260 is released from the movable mold connecting flange 250. Then, the first motor drive mechanism 220 drives the movable locking sleeve 260 to rise to the second set position. At this time, the movable locking sleeve 260 is completely disengaged from the movable mold connecting flange 250.

[0039] Continue to refer to Figure 5 As shown, in a specific feasible implementation, the first motor drive mechanism 220 provided in this application embodiment includes a first servo motor 22 and a first electric cylinder 21. The first electric cylinder 21 is fixedly connected to the movable mold support 210, and the first servo motor 22 is fixedly connected to the first electric cylinder 21 and can output power to the first electric cylinder 21. The aforementioned drive rod is the drive rod of the first electric cylinder 21. When adopting the above solution, the first electric cylinder 21 and the first servo motor 22 form a module. When connected to the movable mold support 210, it is only necessary to fix the first electric cylinder 21 to the movable mold support 210.

[0040] In a specific and feasible embodiment, the movable mold support 210 provided in this application includes a first connecting flange 211, which is fixedly connected to the crossbeam. This secures the entire device to the main structure of the tire shaping and vulcanizing machine.

[0041] In addition, the movable mold device also includes a second connecting flange 240, which is fixedly connected to the crossbeam via a second connection method. Figure 5 The placement direction of the movable mold device shown is a reference direction. The first connecting flange 211 and the second connecting flange 240 are arranged vertically at intervals, with the first connecting flange 211 located above the second connecting flange 240. The second connecting flange 240 is nested on the movable locking sleeve 260 and close to the first end to support the movable locking sleeve 260 and ensure its stability during sliding and rotation. It should be understood that when the second connecting flange 240 is set, the movable locking sleeve 260 can rotate relative to the second connecting flange 240, and can also slide relative to the second connecting flange 240. When the movable locking sleeve 260 is connected to the second connecting flange 240, Continue to refer to Figure 5 and Figure 6As shown, the swing mechanism 230 provided in this embodiment includes a mold-locking cylinder 231 and a mold-locking connecting rod 232 hinged to the mold-locking cylinder 231. The mold-locking cylinder 231 is rotatable relative to the movable mold support 210, while the mold-locking connecting rod 232 is fitted onto the movable locking sleeve 260 and can drive the movable locking sleeve 260 to rotate. For example, the cylinder body of the mold-locking cylinder 231 is rotatable relative to the movable mold support 210, and the piston rod of the mold-locking cylinder 231 is hinged to the mold-locking connecting rod 232, thereby forming a two-bar linkage mechanism. When the piston rod of the mold-locking cylinder 231 extends or retracts, it can drive the mold-locking connecting rod 232 to rotate, thereby driving the movable locking sleeve 260 to rotate.

[0042] When the mold clamping link 232 is connected to the movable locking sleeve 260, a spline may be provided on the mold clamping link 232, and a groove that mates with the spline is provided on the outer side wall of the corresponding movable locking sleeve 260, so that the movable locking sleeve 260 can slide relative to the mold clamping link 232, and the movable locking sleeve 260 can be driven to rotate when the mold clamping link 232 rotates.

[0043] In a specific example, the mold-locking linkage 232 is fitted into the frame structure at one end of the movable locking sleeve 260, thereby facilitating the arrangement of the swing mechanism 230. When the mold-locking linkage 232 is located within the frame structure, the cylinder body of the mold-locking cylinder 231 can be hinged to the first connecting flange 211, thereby facilitating the arrangement of the mold-locking cylinder 231.

[0044] In one specific implementation, the movable locking sleeve 260 includes a nested inner rod 262 and an outer rod 261. The inner rod 262 is nested within a drive rod, and the outer rod 261 is rotatable relative to the inner rod 262. Specifically, the outer rod 261 is connected to the locking mold connecting rod 232, and the outer rod 261 is provided with the aforementioned slot. In this configuration, the inner rod 262 is fixedly connected to the drive rod and can be moved by the drive rod, simultaneously moving the outer rod 261. Since the outer rod 261 is rotatably connected to the inner rod 262, when the locking mold connecting rod 232 drives the outer rod 261 to rotate, the inner rod 262 does not rotate, thus ensuring a relatively stable connection between the inner rod 262 and the drive rod.

[0045] Existing hydraulic swivel mold devices are driven by hydraulic cylinders. Leaking hydraulic oil can flow into the mold, contaminating the mold and tires, affecting tire quality. Hydraulic swivel mold devices require a hydraulic power station, and their valve blocks, pipelines, and operating principles are complex, demanding high technical skills from maintenance personnel. The swivel mold device provided in this application, powered by a first servo motor and a first electric cylinder, completely eliminates the hydraulic system. The removal of pipelines, valve blocks, and hydraulic components simplifies the structure, facilitating maintenance and completely resolving the hydraulic oil leakage problem, thus protecting the environment. The pump-free device significantly reduces noise, greatly improving the working environment. Furthermore, the servo motor provides more precise and reliable control of position, speed, and pressure than hydraulic systems. The servo position determines the extension / retraction position of the swivel mold, eliminating the need for proximity switch detection; fewer proximity switches mean fewer potential failure points. The original hydraulic swivel mold device required adjusting the overflow pressure and extension / retraction speed using overflow and throttle valves on the valve block, necessitating adjustments at the vulcanizing trench valve block, a cumbersome and complex operation. The swivel mold device provided in this application only requires parameterized settings and servo adjustment during adjustment.

[0046] refer to Figure 7 As shown, Figure 7 A schematic diagram of the central mechanism provided in this embodiment is shown. The central mechanism mainly includes an upper ring fixing plate 470 and a lower ring fixing plate 450 arranged at intervals along the vertical direction, wherein the lower ring fixing plate 450 is located above the upper ring fixing plate 470. Additionally, it includes a central mechanism support 430 fixedly connected to the lower ring fixing plate 450, a guide sleeve 440 fixedly connected to the central mechanism support 430, and a central rod 410 nested within the guide sleeve 440 and extendable relative to the guide sleeve 440.

[0047] The central mechanism bracket 430 is located on the side of the lower ring fixing plate 450 opposite to the upper ring fixing plate 470. During assembly, the central mechanism bracket 430 allows the central mechanism provided in this embodiment to be fixed on the support platform of the tire shaping and vulcanizing machine.

[0048] The guide sleeve 440 is located inside the central mechanism bracket 430 and passes through the upper ring fixing plate 470 and the lower ring fixing plate 450. The central rod 410 passes through the guide sleeve 440 and can slide relative to the guide sleeve 440.

[0049] In addition, the central mechanism includes two drive mechanisms, one of which drives the lower ring fixing plate 450 to move relative to the upper ring fixing plate 470. The other drive mechanism drives the central rod 410 to move relative to the guide sleeve 440.

[0050] Specifically, one of the driving mechanisms is a lifting mechanism 460, which is fixed to the upper ring fixing plate 470 and used to drive the lower ring fixing plate 450 to rise and fall. For example... Figure 7As shown, the lifting mechanism 460 is fixed to the upper ring fixing plate 470, and the lower ring fixing plate 450 is connected to the upper ring fixing plate 470 through the lifting mechanism 460. When the lifting mechanism 460 extends or retracts, it can drive the lower ring fixing plate 450 to move relative to the upper ring fixing plate 470.

[0051] Another driving mechanism is a second motor drive mechanism 480. The second motor drive mechanism 480 is fixed on the guide sleeve 440 and is used to drive the extension and retraction of the center rod 410.

[0052] In the above technical solution, the lifting mechanism 460 drives the upper ring fixing plate 470 to rise and fall, and the second motor drive mechanism 480 drives the extension and retraction of the central rod 410, thus achieving independent extension and retraction drive. Furthermore, the use of the second motor drive mechanism 480 to drive the extension and retraction of the central rod 410 results in a simple structure, faster response speed compared to hydraulic drive, and reduced leakage. In addition, compared to existing technologies, the original hydraulic vulcanizing machine central mechanism is driven by a hydraulic cylinder, requiring a hydraulic station for power, and has complex valve blocks, pipelines, and operating principles. This places high demands on the technical skills of maintenance personnel. The central mechanism using a second electric cylinder completely eliminates the hydraulic system, removing pipelines, valve blocks, and hydraulic components, simplifying its structure for easy maintenance, completely solving the hydraulic oil leakage problem, and protecting the environment. The noise of the oil pump-free equipment is significantly reduced, greatly improving the working environment. Moreover, the second servo motor provides more precise and reliable control of position, speed, and pressure than hydraulic systems. This device determines the upper ring position through a servo encoder, eliminating the need for displacement sensors and reducing potential failure points. The original hydraulic center mechanism device required adjustment of overflow pressure and speed by adjusting the overflow valve, balance valve, or throttle valve on the valve block, which required going to the vulcanization trench valve block for adjustment. This operation was cumbersome and complicated. However, the center mechanism adjustment provided in this application embodiment only requires parameter setting and servo adjustment.

[0053] The second motor drive mechanism 480 provided in this embodiment includes a second servo motor 482 and a second electric cylinder 481. The second electric cylinder 481 is fixedly connected to the lower ring fixing plate (specifically, fixedly connected to the guide sleeve 440), while the second servo motor 482 is fixedly connected to the second electric cylinder 481 and can output power to the second electric cylinder 481. The aforementioned drive rod is the drive rod of the second electric cylinder 481. When adopting the above solution, the second electric cylinder 481 and the second servo motor 482 form a module. When connecting to the guide sleeve 440, it is only necessary to fix the second electric cylinder 481 to the guide sleeve 440.

[0054] In an alternative embodiment, the guide sleeve 440 is fixedly connected to the second electric cylinder 481 via multiple threaded connections to enhance the stability of the connection between the second electric cylinder 481 and the guide sleeve 440. For example, the second electric cylinder 481 and the guide sleeve 440 are fixedly connected to the guide sleeve 440 via multiple bolts, screws, or bolt assemblies.

[0055] In one specific implementation, the central mechanism further includes a ring seat 420. The central mechanism support 430 is fixedly connected to the guide sleeve 440 via the ring seat 420, and the central rod 410 passes through the ring seat 420 and can slide relative to the ring seat 420. Specifically, the ring seat 420 is located on the side of the central mechanism support 430 opposite to the lower ring fixing plate 450. Figure 7 As shown, the central mechanism support 430 includes a support body and a ring seat 420 detachably connected to the support body, while the guide sleeve 440 is fixedly connected to the ring seat 420. This facilitates later maintenance and replacement.

[0056] In one specific implementation, a sleeve 490 is provided inside the central mechanism support 430; a guide sleeve 440 is fixed inside the sleeve 490, with one end of the guide sleeve 440 exposed towards the ring seat 420. Specifically, the sleeve 490 is fixedly connected to the lower ring fixing plate 450, and the guide sleeve 440 is fixed inside the sleeve 490, thereby increasing the support strength of the guide sleeve 440.

[0057] In one specific implementation scheme, the number of lifting mechanisms 460 provided in this application embodiment is multiple, and the multiple lifting mechanisms 460 are arranged around the linear drive mechanism 480 of the second servo motor 482. Using multiple lifting mechanisms 460 can enhance the support effect on the lower ring fixing plate 450 and improve the stability of driving the lower ring fixing plate 450 to move.

[0058] In one specific implementation, the lifting mechanism 460 provided in this application embodiment is a cylinder. The cylinder body is fixed to the upper ring fixing plate 470, and the piston rod of the cylinder passes through the upper ring fixing plate 470 and is fixedly connected to the lower ring fixing plate 450. That is, the cylinder body is fixed to the side of the upper ring fixing plate 470 opposite to the lower ring fixing plate 450, and the piston rod is fixedly connected to the lower ring fixing plate 450 after passing through the upper ring fixing plate 470. It should be understood that the piston rod of the cylinder can extend and retract relative to the upper ring fixing plate 470 to ensure that it can drive the lower ring fixing plate 450.

[0059] Please refer to the above. Figure 8 and Figure 9 As shown, Figure 8 A schematic diagram of the pressurization device provided in an embodiment of this application is shown. Figure 9 A schematic diagram of the gas supply system provided in an embodiment of this application is shown.

[0060] The pneumatic pressurization device provided in this application includes an annular cylinder and a limiting cover 330 fixedly connected to the annular cylinder. The hollow area of ​​the annular cylinder serves as a space to accommodate the central mechanism, while the space enclosed by the annular cylinder and the limiting cover 330 serves as a space to accommodate the annular plunger 320. When assembling the annular plunger 320, the annular plunger 320 is slidably assembled within the annular cylinder, and the space formed by the annular cylinder and the limiting cover 330 limits the sliding range of the annular plunger 320.

[0061] In a specific configuration, the annular cylinder is open at one end, and the limiting cap 330 is fixed to the open end of the annular cylinder. Specifically, the limiting cap 330 is an annular mechanism that is fixedly connected to the outer wall of the annular cylinder. In one feasible embodiment, a limiting protrusion is provided at the end of the limiting cap 330 away from the annular cylinder to block the annular plunger 320.

[0062] In addition, a vent 311 is provided on the annular cylinder body, which communicates with the inner cavity of the annular cylinder body. This vent 311 is connected to a gas supply device. When the gas supply device supplies gas, gas is introduced between the annular plunger 320 and the annular cylinder body, thereby pushing the annular plunger 320 to slide and achieving pressurization. When pressure relief is required, the gas between the annular plunger 320 and the annular cylinder body can flow out through the vent 311.

[0063] In one feasible embodiment, the annular cylinder body may be a split structure. For example, the annular cylinder body includes an outer cylinder body 310 and an inner cylinder body 340, wherein the outer cylinder body 310 and the inner cylinder body 340 are fixedly connected and accommodate an annular plunger 320.

[0064] Furthermore, the pneumatic pressurization device provided in this application embodiment also includes a heat insulation plate 360 ​​and a hot plate 350, wherein the heat insulation plate 360 ​​and the annular plunger 320 are stacked together, and the hot plate 350 and the heat insulation plate 360 ​​are stacked together. In a specific arrangement, the heat insulation plate 360 ​​is fixed on the side of the annular plunger 320 opposite to the vent 311, and the hot plate 350 is fixed on the side of the heat insulation plate 360 ​​opposite to the annular plunger 320. During pneumatic pressurization, when the annular plunger 320 extends, the hot plate 350 is driven by the annular plunger 320 to protrude outside the limiting pressure cover 330.

[0065] In the above technical solution, the clamping effect is improved and leakage is reduced by using the cooperation of an annular cylinder and an annular plunger 320 for clamping, and by using air pressure to drive the annular plunger 320 for clamping.

[0066] In an alternative embodiment, the annular plunger 320 has a recessed region 321 on the side facing the vent 311, and the recessed region 321 communicates with the vent 311. This ensures that the annular plunger 320 does not block the vent 311 when it retracts to abut against the annular cylinder body, thus improving the pushing effect of air pressure on the annular plunger 320.

[0067] In one specific implementation scheme, there are multiple vent holes 311, and these multiple vent holes 311 are arranged around the center of the annular cylinder. This ensures that air can be quickly supplied to the annular cylinder during air supply.

[0068] In one specific implementation, a sealing gasket 370 is provided on the inner wall of the annular cylinder, and the annular plunger 320 is sealed to the annular cylinder by the sealing gasket 370. The sealing gasket 370 improves the sealing effect between the annular cylinder and the annular plunger 320, reduces the possibility of air leakage, and ensures the reliability of pneumatic drive.

[0069] Please refer to the above. Figure 8 and Figure 9 As shown, in a specific feasible implementation, the pressurizing device provided in this application embodiment further includes a gas supply system, which uses high-pressure nitrogen required for sulfidation as a first high-pressure gas source 3101 to supply gas to the pneumatic pressurizing device, thereby eliminating the need for an additional separate gas source.

[0070] In the specific configuration of the gas supply system, the gas supply system includes a gas supply pipeline 3114 and a first high-pressure gas source 3101 connected to the gas supply pipeline 3114. The first high-pressure gas source 3101 can be a source of high-pressure nitrogen gas required for sulfidation. The gas supply pipeline 3114 is connected to a vent 311 to supply gas to the annular cylinder body through the first high-pressure gas source 3101 to drive the annular plunger 320.

[0071] In addition, the air supply system also includes a shut-off valve 3113, a filter pressure regulating valve, and a first switch control valve 3103 installed on the air supply line 3114. The shut-off valve 3113 controls the opening and closing of the air supply line 3114 and can be used during air supply system maintenance. The filter pressure regulating valve adjusts the air pressure on the air supply line 3114 to match the air pressure required for charging the annular cylinder. Furthermore, the first switch control valve 3103 controls the on / off state of the air supply line 3114 during air supply. Specifically, the filter pressure regulating valve 3112 is located between the shut-off valve 3113 and the first switch control valve 3103, with the shut-off valve 3113 upstream and the first switch control valve 3103 downstream. That is, the shut-off valve 3113 is closest to the first high-pressure air source 3101, the filter pressure regulating valve 3112 is in the middle, and the first switch control valve 3103 is located near the annular cylinder.

[0072] In one feasible embodiment, the gas supply system further includes a recovery line 3116, which cooperates with the gas supply line 3114. When the annular plunger 320 extends, gas is supplied to the annular cylinder via the gas supply line 3114. When the annular plunger 320 retracts, the gas in the annular cylinder is recovered via the recovery line 3116. Exemplarily, the recovery line 3116 is connected to the gas supply line 3114, and the connection point between the gas supply line 3114 and the recovery line 3116 is downstream of the first on / off control valve 3103. When the gas supply line 3114 stops supplying gas, the first on / off control valve 3103 closes. Therefore, when the annular plunger 320 retracts, the gas in the annular cylinder is recovered via the recovery line 3116. Additionally, the gas supply system also includes a second on / off control valve 3105 disposed on the recovery line 3116.

[0073] In specific control, when the annular plunger 320 extends, the first switch control valve 3103 opens and the second switch control valve 3105 closes, allowing the first high-pressure gas source 3101 to supply gas to the annular cylinder through the gas supply line 3114. When the annular plunger 320 retracts, the first switch control valve 3103 closes and the second switch control valve 3105 opens, allowing the gas in the annular cylinder to be recovered through the recovery line 3116.

[0074] In an optional embodiment, the gas supply system also includes a pressure transmitter 1310 and a controller. The pressure transmitter 1310 detects the gas pressure within the gas supply line 3114, while the controller closes the first switch control valve 3103 when the pressure value detected by the pressure transmitter 1310 exceeds a set value. In practical use, the controller determines whether the hot plate 350 is properly pressed based on the gas pressure value detected by the pressure transmitter 1310. While the hot plate 350 is pressed, the gas pressure inside the annular cylinder gradually increases as gas is continuously supplied through the gas supply line 3114. Simultaneously, the gas pressure in the gas supply line 3114 also increases synchronously. When the pressure transmitter 1310 detects that the pressure in the gas supply line 3114 exceeds the set value, it indicates that the pressing is complete. At this point, the controller closes the first switch control valve 3103 to maintain pressure in the outer cylinder and initiates the vulcanization process.

[0075] In one specific implementation scheme, the air supply system provided in this application embodiment further includes an air replenishment pipeline 3115, which is used to replenish air to the annular cylinder. Specifically, the air replenishment pipeline 3115 is connected to the air supply pipeline 3114 at a position between the filter regulating valve 3112 and the first switch control valve 3103. Additionally, a third switch control valve 3104 and a throttle valve 3109 are provided on the air replenishment pipeline 3115. In this configuration, the throttle valve 3109 is used to adjust the air flow rate of the air replenishment pipeline 3115. In this application embodiment, both ends of the air replenishment pipeline 3115 are connected to the air supply pipeline 3114, with one end of the air replenishment pipeline 3115 connected to the air supply pipeline 3114 located upstream of the first switch control valve 3103, and the other end located downstream of the first switch control valve 3103. The air supply line 3115 provides less air than the air supply line 3114, and is used to replenish air to the annular cylinder when a pressure drop occurs during vulcanization. For example, during vulcanization, if the pressure detected by the pressure transmitter 1310 is lower than the set value, the third switch control valve 3104 opens, and air is replenished to the annular cylinder through the air supply line 3115. When the pressure detected by the pressure transmitter 1310 reaches the set value, the third switch control valve 3104 closes.

[0076] In one feasible embodiment, the first switch control valve 3103, the second switch control valve 3105, and the third switch control valve 3104 provided in this application are all pneumatic valves, which control the opening and closing of the three switch control valves. In the above-mentioned gas supply system, since the gas supply line 3114, the gas replenishment line 3115, and the gas return line all contain high-pressure gas, the use of pneumatic valves can ensure that the switch control valves have good response performance.

[0077] In addition, the air supply system also includes a control air circuit, which is used to control the three switch control valves mentioned above. Specifically, the control air circuit includes a second high-pressure air source 3102, and a first branch air circuit, a second branch air circuit, and a third branch air circuit connected in parallel with the second high-pressure air source 3102. The first branch air circuit is connected to the control terminal of the first switch control valve 3103 and is equipped with a first solenoid valve 3107. The second branch air circuit is connected to the control terminal of the second switch control valve 3105 and is equipped with a second solenoid valve 3106. The third branch air circuit is connected to the control terminal of the third switch control valve 3104 and is equipped with a third solenoid valve 3108. Taking the first branch air circuit as an example, when the first switch control valve 3103 needs to operate, the first solenoid valve 3107 is energized, and the first branch air circuit connects to the control terminal of the first switch control valve 3103, thereby controlling the first switch control valve 3103 to conduct, and the air supply pipeline 3114 supplies air to the annular cylinder.

[0078] In specific control, after the tire vulcanizing machine is in position with the mold closed, the controller de-energizes the second solenoid valve 3106 and closes the second switch control valve 3105; it also energizes the first solenoid valve 3107, which in turn opens the first branch air circuit and the first switch control valve 3103, allowing the first high-pressure air source 3101 to fill the annular cylinder with air. When the pressure detected by the pressure transmitter 1310 exceeds the set value, the controller de-energizes the first solenoid valve 3107 and closes the first switch control valve 3103. During the vulcanization process, the controller also energizes the third solenoid valve 3108 when the pressure detected by the pressure transmitter 1310 is lower than the set value. This opens the third branch air circuit and the third switch control valve 3104, allowing the first high-pressure air source 3101 to replenish air to the annular cylinder through the air replenishment line 3115 until the pressure detected by the pressure transmitter 1310 exceeds the set value. After the vulcanization is received, the second solenoid valve 3106 is energized, and the second branch gas circuit controls the second switch control valve 3105 to open, so that the first high-pressure gas in the annular cylinder can be recovered by the recovery pipeline 3116.

[0079] To facilitate understanding of the pneumatic pressurization device provided in the embodiments of this application, the working process of the air supply system will be described in detail below with reference to the working process of the tire shaping and vulcanizing machine provided in the embodiments of this application.

[0080] When the vulcanizing machine closes the mold, the third solenoid valve 3106 is energized and opens, and the cylinder plunger 320 is compressed by the mold closing cylinder. The nitrogen in the plunger 320 cylinder is connected to the nitrogen recovery pipeline 3116. The residual nitrogen in the cylinder is recovered.

[0081] After the vulcanizing machine mold closes, the third solenoid valve 3106 is de-energized and returns to its original position, the second switch control valve 3105 closes, and the #2 solenoid valve is energized and opens the first switch control valve 3103, allowing high-pressure nitrogen gas to enter. The high-pressure nitrogen gas provides the mold closing force. The pressure transmitter 1310 detects the inlet pressure. When the pressure reaches the preset value, the first solenoid valve 3107 is de-energized and closes the first switch control valve 3103 to maintain pressure, thus starting the vulcanization process.

[0082] During vulcanization, if the pressure drops to the pressure replenishment point, the third solenoid valve 3108 is energized, and the third switch solenoid valve 3104 opens to replenish pressure through the throttling pipeline. When the pressure reaches the preset value, the third solenoid valve 3108 is de-energized and closes, while the third switch solenoid valve 3104 maintains the pressure. After vulcanization is complete and the pressure inside the capsule is released, the third solenoid valve 3106 is energized, the second switch control valve 3105 opens, and the nitrogen in the pressurized cylinder is released and returns to the nitrogen recovery pipeline 3116.

[0083] As can be seen from the above description, the pneumatic pressurization device provided in this application embodiment abandons the traditional multi-cylinder pressurization method, which facilitates the dehydration of the vulcanizing machine. There is no oil pollution; the high-pressure nitrogen gas originally required for vulcanization is directly used as the pressurizing medium. The high and low pressure layout of the original hydraulic system is eliminated, resulting in a simple structure. Because its 320-inch plunger has a large annular area, high-pressure nitrogen gas (2.5 MPa) can be used as the pressurizing medium, achieving low pressure and high output. The special sealing guide structure extends the life of the seals. Furthermore, the technical solution disclosed in this application also has the following advantages: Fast response: Low gas viscosity and low resistance result in rapid action response without hydraulic lag.

[0084] Low cost: The pressurizing medium directly uses the high-pressure nitrogen from the original vulcanization workshop and can be recycled. There are no additional medium costs, and the recycled nitrogen can be used for shaping.

[0085] Simple structure: easy to install and maintain, requiring low technical skills from operators. No need to understand complex hydraulic principles.

[0086] Cleanliness: Effectively prevents leaks, eliminates oil stains, and protects the environment. Working environment: Traditional vulcanizing machines require a high-pressure pump, which generates a lot of noise when pressurizing. Pneumatic pressurization significantly reduces noise and greatly improves the working environment.

[0087] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

[0088] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A tire shaping and vulcanizing machine, characterized in that, include: Support frame; The movable mold device includes a movable mold support that can slide relative to the support frame, a movable locking sleeve that is slidably connected to the movable mold support and can rotate relative to the movable mold support, wherein the movable locking sleeve is connected to a movable mold; it also includes a first motor drive mechanism that is fixedly connected to the movable mold support and is used to drive the movable locking sleeve to slide, and a swing mechanism for driving the movable locking sleeve to swing relative to the movable mold support; The pressurizing device includes an annular cylinder fixedly connected to a support frame, an annular plunger slidably assembled in the cylinder, and a hot plate fixedly connected to the annular plunger; it also includes a gas supply system that supplies gas to the annular cylinder. The central mechanism includes a stacked upper ring fixing plate and a lower ring fixing plate, the upper ring fixing plate being fixedly connected to the support frame; it also includes a central rod that can slide relative to the lower ring fixing plate, a lifting mechanism for driving the lower ring fixing plate to move relative to the upper ring fixing plate, and a second motor drive mechanism for driving the central rod to extend and retract; the central rod passes through the inner ring of the annular cylinder. The mold opening and closing drive mechanism includes a third motor drive mechanism for driving the movable mold support to move relative to the annular cylinder.

2. The tire shaping and vulcanizing machine according to claim 1, characterized in that, The air supply system includes a first high-pressure air source, which is connected to the inner cavity of the annular cylinder through an air supply pipeline; it also includes a shut-off valve disposed on the air supply pipeline for controlling the on / off state of the air supply pipeline, a filter pressure regulating valve disposed on the air supply pipeline, and a first switch control valve disposed on the air supply pipeline; wherein the filter pressure regulating valve is located between the shut-off valve and the first switch control valve, with the shut-off valve located upstream and the first switch control valve located downstream.

3. The tire shaping and vulcanizing machine according to claim 2, characterized in that, It also includes a recovery pipeline connected to the gas supply pipeline, wherein the connection point between the gas supply pipeline and the recovery pipeline is located downstream of the first switch control valve; It also includes a second on / off control valve installed on the recovery pipeline.

4. The tire shaping and vulcanizing machine according to claim 3, characterized in that, It also includes a gas replenishment line, wherein the gas replenishment line is connected to the gas supply line at a position between the filter regulating valve and the first switch control valve; It also includes a third switch control valve and a throttle valve installed on the gas supply line.

5. The tire shaping and vulcanizing machine according to claim 4, characterized in that, It also includes a pressure transmitter and a controller; the pressure transmitter is used to detect the air pressure in the air supply pipeline; When the pressure value detected by the pressure transmitter exceeds the set value, the controller controls the first switch control valve to close.

6. The tire shaping and vulcanizing machine according to claim 5, characterized in that, The first switch control valve, the second switch control valve, and the third switch control valve are all pneumatic valves. It also includes a control gas path, which comprises a second high-pressure gas source, and a first branch gas path, a second branch gas path, and a third branch gas path connected in parallel to the second high-pressure gas source; wherein... The first branch gas path is connected to the control terminal of the first switch control valve, and a first solenoid valve is provided on the first branch gas path. The second branch gas path is connected to the control terminal of the second switch control valve, and a second solenoid valve is provided on the second branch gas path; The third branch gas path is connected to the control terminal of the third switch control valve, and a third solenoid valve is provided on the third branch gas path.

7. The tire shaping and vulcanizing machine according to claim 6, characterized in that, The support frame includes a column, a crossbeam slidably connected to the column, and a support platform fixedly connected to the column; wherein... The movable mold bracket is fixedly connected to the crossbeam; the annular cylinder is fixedly connected to the support platform; and the upper ring fixing plate is fixedly connected to the support platform.

8. The tire shaping and vulcanizing machine according to claim 7, characterized in that, The mold opening and closing drive mechanism also includes a retaining ring, and the third motor drive mechanism includes a third servo motor fixedly connected to the support frame, and a third electric cylinder connected to the third servo motor. The third electric cylinder is fixedly connected to the crossbeam through the retaining ring.

9. The tire shaping and vulcanizing machine according to claim 8, characterized in that, The first motor drive mechanism includes a first electric cylinder fixedly connected to the movable mold bracket, and a first servo motor fixedly connected to the first electric cylinder; The second motor drive mechanism includes a second electric cylinder fixed relative to the lower ring fixing plate, and a second servo motor fixedly connected to the second electric cylinder.

10. The tire shaping and vulcanizing machine according to claim 9, characterized in that, The swing mechanism includes a mold-locking cylinder that rotates relative to the movable mold support, and a mold-locking connecting rod hinged to the mold-locking cylinder. The mold-locking connecting rod is fitted onto the movable locking sleeve and fixedly connected to the movable locking sleeve.

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