Automatic tire unloading device for multiple solid tire curing presses

Abstract

The present application relates to the technical field of solid tire processing equipment, and provides an automatic tire ejection device for online use of multiple solid tire vulcanizing machines, comprising: a walking mechanism configured to walk along a preset path; a base mechanism used to correspond to multiple vulcanizing machines arranged on the preset path one by one under the driving of the walking mechanism; a mold locking station, a mold opening station and a tire ejection station are arranged on the base mechanism; a push-pull mold mechanism is used to connect the mold in the vulcanizing machine with the mold locking station and pull the mold out to the mold opening station and the tire ejection station; a mold opening mechanism is used for mold opening and closing; an ejection mechanism is used to eject the cured tire in the mold; a tire loading and unloading mechanism is used for grabbing and conveying the cured tire and grabbing and installing the green tire. In this way, unmanned operation of the whole vulcanization production process can be realized, the risk of manual exposure can be avoided, and the collaborative efficiency of multiple devices can be improved, so as to improve the vulcanization production efficiency, ensure the operation safety, realize energy saving and consumption reduction and green production, and improve the competitiveness of enterprises.

Description

Technical Field

[0001] This invention relates to the field of solid tire processing equipment technology, and in particular to an automatic tire ejection device for use by multiple solid tire vulcanizing machines operating in tandem. Background Technology

[0002] In the tire manufacturing industry, the vulcanization process is a core step that determines the physical properties, service life, and safety stability of tire products. Its technological level directly affects the economic benefits and market competitiveness of tire production. With the continuous development of the global automotive industry and the in-depth promotion of intelligent manufacturing strategies, industrial automation and intelligence have become the core directions for the transformation and upgrading of the manufacturing industry. As an important part of the equipment manufacturing industry, the tire industry has put forward higher requirements for the automation, greening, and safety of the production process.

[0003] However, in the vulcanization process of most domestic tire companies, key steps such as green tire loading and unloading, finished tire removal, and material transfer still rely heavily on manual operation. The high-temperature heat source, pungent odor, and harmful chemical gases generated under high temperature and pressure conditions during vulcanization pose health risks to operators. Furthermore, the low production efficiency of manual operation is inconsistent with the current trend of energy conservation, emission reduction, and green production under industrial automation. To alleviate the labor intensity of manual operation, the industry has gradually adopted semi-automatic vulcanizing machines to replace some manual labor. These machines primarily provide mechanical assistance for the green tire loading and initial finished tire unloading stages, reducing the frequency of direct human intervention in the vulcanizing machine's operating area to a certain extent.

[0004] However, existing vulcanization production technologies still have many unavoidable shortcomings: First, semi-automatic vulcanizing machines still require manual intervention in processes such as finished product removal and material transfer, and operators are still exposed to high temperatures and toxic and harmful gases, so health and safety risks have not been fundamentally eliminated; Second, they are single-function and lack integration. Existing equipment cannot achieve fully unmanned operation of raw material supply, finished material handling, automatic mold opening, and material detection. The connection between each process still relies on manual intervention, resulting in a fragmented production process, insufficient coordination, and the inability to achieve online collaborative operation of multiple vulcanizing machines, which makes it difficult to improve production efficiency and meet the needs of large-scale continuous production.

[0005] In view of the above problems, how to achieve unmanned operation of the entire vulcanization production process, avoid the risk of human exposure, and improve the efficiency of multi-equipment collaboration, so as to improve vulcanization production efficiency, ensure operational safety, and achieve energy conservation, emission reduction and green production, has become an important technical problem that urgently needs to be solved. Summary of the Invention

[0006] This invention provides an automatic tire ejection device for multiple solid tire vulcanizing machines operating in tandem, which addresses the shortcomings of existing vulcanizing production, such as high risk of human exposure and low efficiency. It enables unmanned operation of the entire vulcanizing production process, avoids the risk of human exposure, and improves the collaborative efficiency of multiple devices, thereby increasing vulcanizing production efficiency, ensuring operational safety, achieving energy conservation and emission reduction, and promoting green production, ultimately enhancing enterprise competitiveness.

[0007] This invention provides an automatic tire ejection device for use with multiple solid tire vulcanizing machines operating in tandem, comprising: The walking mechanism is configured to travel along a preset path; A base mechanism is provided on the traveling mechanism to correspond one by one with multiple vulcanizing machines arranged on the preset path under the drive of the traveling mechanism; the base mechanism is provided with a mold locking station, a mold opening station and a tire ejection station. A push-pull mold mechanism, disposed on the base mechanism, is used to connect the mold in the vulcanizing machine at the mold locking station and to pull the mold out to the mold opening station and the tire ejection station; A mold opening mechanism is provided at the mold opening station and is used for opening and closing the mold. A demolding mechanism is provided at the mold opening station and is used to eject the molded part from the mold for demolding. The tire loading and unloading mechanism is connected to the base mechanism and is used for gripping and conveying the cooked tires and gripping and installing the green tires.

[0008] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a walking mechanism comprising: Two ground rails are laid along the preset path and arranged in parallel and alternating positions, and a first rack is provided on the ground rail; The chassis is supported on the ground rail, and the two sides of the chassis are rotatably connected to the first gear, which meshes with the first rack. The first driving component is connected to the first gears on both sides of the chassis via a transmission shaft, and is used to drive the first gears to rotate.

[0009] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a drive shaft comprising: At least two shaft segments; A coupling for connecting two adjacent shaft segments; the coupling includes two connecting bodies, which are respectively fixedly connected to the two shaft segments, at least one of the connecting bodies is provided with a waist-shaped hole, and a plurality of waist-shaped holes are arranged around the axis of the drive shaft, and the two connecting bodies are connected through the waist-shaped hole and a connecting piece that slides through the waist-shaped hole.

[0010] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a base mechanism comprising: The base is connected to the walking mechanism; A primary lifting device is installed between the base and the traveling mechanism to drive the base to lift.

[0011] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a push-pull mold mechanism comprising: A workbench is disposed on the base and can slide between the mold opening station and the mold ejection station; A first push-pull device is connected to the worktable and can slide between the mold-locking station and the mold-opening station, used to connect the mold and pull the mold out to the worktable and the mold-opening station; The second push-pull device is connected between the worktable and the base, and is used to drive the worktable to move between the mold opening station and the tire ejection station.

[0012] An automatic tire dispensing device for use with multiple solid tire vulcanizing machines in tandem according to the present invention, wherein the first push-pull device comprises: The traction seat is slidably connected to the worktable, and the side closest to the mold-locking station is the traction side; The traction arm has one end hinged to the traction seat and the other end extending out of the traction side to form a traction head. The traction head can move closer to or away from the worktable as the traction arm swings, so as to engage or disengage with the slot on the mold. A first driving structure is disposed between the traction arm and the traction seat for driving the traction arm to swing. The second driving structure is disposed between the traction seat and the worktable, and is used to drive the traction seat to slide.

[0013] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem, according to the present invention, is provided. Two guide rails are arranged in parallel on the workbench, and guide grooves are provided on the opposite side of the two guide rails. The two sides of the traction seat are embedded in the guide grooves. The bottom surface of the guide groove is connected to a first guide wheel, the side surface is connected to a second guide wheel, and the side of the traction seat is connected to a third guide wheel; The first guide wheel makes rolling contact with the bottom surface of the traction seat, the second guide wheel makes rolling contact with the side of the traction seat, and the third guide wheel makes rolling contact with the top surface of the guide groove.

[0014] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a mold opening mechanism comprising: The lifting platform can move up or down, either close to or away from the base mechanism. A secondary lifting device is connected between the lifting platform and the base mechanism, used to drive the lifting platform to lift. The mold opening lock is connected to the side of the lifting platform facing the base mechanism. The mold opening lock has two states: locked and unlocked. In the locked state, the mold opening lock is connected to the mold. In the unlocked state, the mold opening lock is disengaged from the mold. A locking structure is used to lock the lifting platform at a preset height.

[0015] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a demolding mechanism comprising: The first ejector is connected to the base and its ejector end corresponds to the position of the demolding hole on the worktable; The ejector seat is fixedly connected to the ejector end of the first ejector member; At least two hooks are arranged around the center of the ejector seat. The first end of the hook is hinged to the ejector seat, the second end protrudes from the upper surface of the ejector seat, and the second ends of the multiple hooks are bent in opposite directions into a hook shape. The second ejector has its output end connected to the hook, and is used to drive the multiple hooks to open.

[0016] According to the present invention, an automatic tire ejection device for use in conjunction with multiple solid tire vulcanizing machines is provided, wherein a bottom support plate is provided on the traction side of the traction seat, and the upper surface of the bottom support plate forms a stepped surface with the side surface of the traction side for contacting the bottom and end surfaces of the mold.

[0017] According to the present invention, an automatic tire ejection device for use in conjunction with multiple solid tire vulcanizing machines is provided, wherein the first drive structure is configured as a linear drive element, and one end of the first drive structure is hinged to the traction seat and the other end is hinged to the traction arm.

[0018] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention, wherein the second drive structure includes: The second rack is arranged on the worktable; The second gear is rotatably connected to the traction seat and meshes with the second rack. The second driving component is connected to the second gear transmission and is used to drive the second gear to rotate.

[0019] According to the present invention, an automatic tire ejection device for use with multiple solid tire vulcanizing machines operating in tandem includes a plurality of mold-opening locks forming an unlocking space, wherein the mold-opening locks include: The locking seat is fixedly connected to the lifting platform; The locking block has one end fixedly connected to the lock seat and the other end extending out of the inside of the unlocking space; A lower locking block is arranged at a distance from the upper locking block and closer to the base mechanism; one end of the lower locking block is connected to the lock seat, and the other end can extend out of the inner side of the unlocking space in the locked state or retract in the unlocked state. The third driving component is connected to the lower locking block and is used to drive the lower locking block to move.

[0020] According to the present invention, an automatic tire ejection device for use with multiple solid tire vulcanizing machines operating in tandem includes a lower locking block hinged to a locking seat; a third driving member configured as a cylinder, with one end hinged to the lower locking block and the other end hinged to the locking seat. An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem, according to the present invention, is provided. A primary guide post is erected on the base, and a primary guide sleeve is fixedly connected to the lifting platform. The primary guide sleeve is slidably fitted onto the primary guide post; the locking structure includes: A pin is used to connect to the lifting platform or the primary guide sleeve; A keyhole is provided on the primary guide post and corresponds to the position of the pin; the pin can slide closer to or away from the keyhole. A locking drive unit, connected to the pin, is used to drive the pin to slide.

[0021] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention further includes a positioning mechanism; The positioning mechanism is connected to the base mechanism and is used to position the base mechanism at the corresponding vulcanizing machine position.

[0022] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a positioning mechanism comprising: The positioning seat is fixedly connected to one of the base mechanism and the vulcanizing machine; The positioning element has a first end hinged to the positioning seat and a second end that can swing towards or away from the positioning seat. The first link is located near the second end of the positioning member; the first end of the first link is hinged to the positioning seat. The second link has its first end hinged to the second end of the first link and its other end hinged to the positioning member; A positioning drive component is used to drive the second link to swing. The positioning member has a positioning groove on the side facing away from the second connecting rod, which is used to engage or disengage with the mating parts on the base mechanism and the other of the vulcanizing machine.

[0023] An automatic tire dispensing device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a tire loading and unloading mechanism comprising: Tire unloading slide rail and tire loading slide rail, wherein the tire unloading slide rail extends from the tire exit station to the clean tire station, and the tire loading slide rail extends from the tire exit station to the green tire station; A tire unloading robot assembly is connected to the tire unloading slide rail; A tire unloading drive unit is used to drive the tire unloading robot to move along the tire unloading slide rail; A tire-loading robot arm assembly is connected to the tire-loading slide rail; A tire-loading drive unit is used to drive the tire-loading robot arm to move along the tire-loading slide rail.

[0024] An automatic tire unloading device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a tire unloading robot assembly comprising: The tire unloading lifting structure has one end slidably connected to the tire unloading slide rail; A tire-unloading robot is connected to the other end of the tire-unloading lifting structure; The tire removal limiting structure is used to limit the lifting and lowering stroke of the tire removal lifting structure.

[0025] According to the present invention, an automatic tire unloading device for use in conjunction with multiple solid tire vulcanizing machines is provided, wherein the bottom end of the tire unloading lifting structure is connected to a mounting base, the tire unloading manipulator is floatingly connected to the mounting base, and a first contact is fixedly connected to the tire unloading manipulator. The tire removal limiting structure includes at least one first proximity switch, which is connected to the tire removal lifting structure and located on the movement path of the first contact. When the first contact triggers the first proximity switch, the proximity switch provides a feedback signal, and the tire removal lifting structure performs a corresponding operation based on the signal.

[0026] An automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to the present invention includes a tire loading robot assembly comprising: The tire loading lifting structure has one end slidably connected to the tire loading slide rail; A tire-loading robot arm is connected to the other end of the tire-loading lifting structure; A tire-loading limiting structure is used to limit the lifting and lowering stroke of the tire-loading lifting structure.

[0027] According to the present invention, an automatic tire dispensing device for multiple solid tire vulcanizing machines used in tandem is provided, wherein the bottom end of the tire loading lifting structure is connected to a connecting seat, the tire loading robot is floatingly connected to the connecting seat, and a second contact is fixedly connected to the tire loading robot. The tire loading limiting structure includes at least one second proximity switch, which is connected to the tire loading lifting structure and located on the movement path of the second contact. When the second contact triggers the second proximity switch, the second proximity switch provides a feedback signal, and the tire loading lifting structure performs a corresponding operation based on the signal.

[0028] The automatic tire ejection device provided by this invention, used for multiple solid tire vulcanizing machines in tandem, has a walking mechanism as its mobile foundation. This mechanism travels along a preset path, aligning the base mechanism with each of the vulcanizing machines arranged along the path, enabling seamless multi-device operation. The base mechanism integrates a mold-locking station, a mold-opening station, and a tire ejection station, providing an orderly operating platform for each process and ensuring the continuity of the workflow. After the base mechanism aligns with the target vulcanizing machine, the push-pull mold mechanism first connects with the mold inside the vulcanizing machine at the mold-locking station. Then, it pulls the vulcanized mold out to the mold-opening station, where the mold-opening mechanism performs the mold-opening action. Simultaneously, the demolding mechanism ejects the molded tire from the mold. The push-pull mold mechanism then pulls the mold to the tire ejection station, where the loading and unloading mechanism grabs the demolded tire and transports it to a preset collection area, completing the tire ejection process. After the tire is ejected, the loading and unloading mechanism grabs the green tire to be vulcanized and installs it into the mold. Then, the mold is pushed to the mold opening station by the push-pull mold mechanism. The mold opening mechanism performs the mold closing action at the mold opening station. Finally, the mold closing mechanism pushes the mold into the vulcanizing machine, realizing the automated switching from finished tire ejection to green tire loading.

[0029] Compared to related technologies, this fully automated and coordinated system, encompassing the walking mechanism, push-pull mold mechanism, mold opening mechanism, demolding mechanism, and tire loading / unloading mechanism, enables unmanned operation throughout the entire vulcanization production process. Operators are no longer exposed to high temperatures or toxic gases, reducing health and safety risks and aligning with the requirements of green production and safe operation. Furthermore, relying on the multi-station integrated design of the base mechanism and the efficient linkage of each mechanism, it achieves seamless integration of "mold pulling out - mold opening - demolding - tire delivery - green tire installation - mold resetting." Combined with the walking mechanism driving the device to work in alignment with multiple vulcanizing machines, it breaks through the limitations of single-unit operation, solves the shortcomings of existing technologies that cannot be interconnected and coordinated, improves production efficiency and large-scale production capacity, meets the needs of large-scale continuous production, and effectively enhances the company's market competitiveness. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is one of the structural schematic diagrams of an automatic tire ejection device for multiple solid tire vulcanizing machines used in conjunction with the present invention.

[0032] Figure 2 This is the second schematic diagram of the automatic tire ejection device for multiple solid tire vulcanizing machines used in conjunction with the present invention.

[0033] Figure 3 This is one of the structural schematic diagrams of the walking mechanism provided by the present invention.

[0034] Figure 4 This is the second schematic diagram of the walking mechanism provided by the present invention.

[0035] Figure 5 This is a schematic diagram of the transmission shaft provided by the present invention.

[0036] Figure 6 This is a schematic diagram of the positioning mechanism provided by the present invention.

[0037] Figure 7 This is a schematic diagram of the base mechanism provided by the present invention.

[0038] Figure 8 This is one of the structural schematic diagrams of the push-pull mold mechanism provided by the present invention.

[0039] Figure 9 This is the second schematic diagram of the push-pull mold mechanism provided by the present invention.

[0040] Figure 10 This is a schematic diagram of the mold opening mechanism provided by the present invention.

[0041] Figure 11 This is a schematic diagram of the demolding mechanism provided by the present invention.

[0042] Figure 12 This is one of the structural schematic diagrams of the tire unloading robot assembly provided by the present invention.

[0043] Figure 13 This is the second structural schematic diagram of the tire unloading robot assembly provided by the present invention.

[0044] Figure 14 This is the third structural schematic diagram of the tire unloading robot assembly provided by the present invention.

[0045] Figure 15 This is one of the structural schematic diagrams of the tire loading robot assembly provided by the present invention.

[0046] Figure 16 This is the second structural schematic diagram of the tire loading robot assembly provided by the present invention.

[0047] Figure 17This is the third structural schematic diagram of the tire loading robot assembly provided by the present invention.

[0048] Figure 18 This is a cross-sectional view of the tire loading robot assembly provided by the present invention in the AA direction.

[0049] Figure 19 This invention provides Figure 18 A magnified view of part A in the middle.

[0050] Figure 20 This is a schematic diagram of the nut sleeve provided by the present invention.

[0051] Figure 21 This is a schematic diagram of the adjustment key provided by the present invention.

[0052] Figure label: 1. Walking mechanism; 11. Ground rail; 12. Chassis; 13. First driving component; 14. First rack; 15. First gear; 16. Drive shaft; 160. Shaft segment; 161. Coupling; 162. Connecting body; 163. Waist-shaped hole; 2. Base mechanism; 21. Base; 22. First-stage lifting device; 23. First-stage guide column; 24. First-stage guide sleeve; 25. Second-stage guide column; 26. Second-stage guide sleeve; 3. Push-pull mold mechanism; 31. Workbench; 32. First push-pull device; 321. Traction seat; 3211. Base plate; 322. Traction arm; 323. First driving component Structure; 324, Second drive structure; 3241, Second rack; 3242, Second drive component; 325, Traction head; 33, Second push-pull device; 34, Guide rail; 341, Guide groove; 342, First guide wheel; 343, Second guide wheel; 344, Third guide wheel; 4, Mold opening mechanism; 41, Lifting platform; 42, Secondary lifting device; 43, Mold opening lock; 431, Lock seat; 432, Upper locking block; 433, Lower locking block; 434, Third drive component; 44, Locking structure; 441, Pin; 442, Locking drive component; 5, Demolding mechanism; 51, Top 52. First ejector; 53. Claw; 54. Second ejector; 55. Linkage; 6. Tire loading / unloading mechanism; 61. Tire unloading slide rail; 62. Tire loading slide rail; 63. Tire unloading robot assembly; 631. Tire unloading lifting structure; 6310. Screw frame; 6311. Slide rail frame; 6312. Lifting screw; 6313. Nut sleeve; 6314. Drive motor; 6315. Adjustment key; 6316. First part; 6317. Second part; 6318. First keyway; 6319. Second keyway; 6320. First through hole; 6321. Second through hole 632. Tire unloading robot; 633. Mounting base; 634. First contact; 635. Tire unloading limiting structure; 64. Tire unloading drive component; 65. Tire loading robot assembly; 651. Tire loading lifting structure; 652. Tire loading robot; 653. Connecting base; 654. Second contact; 655. Tire loading limiting structure; 66. Tire loading drive component; 7. Positioning mechanism; 71. Positioning base; 72. Positioning component; 720. Positioning groove; 73. First connecting rod; 74. Second connecting rod; 75. Positioning drive component; 76. Mating component; 8. Mold; 80. Slot; 9. Vulcanizing machine. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0054] To better understand the automatic tire ejection device provided by this invention for use with multiple solid tire vulcanizing machines, we will first introduce its application background. Currently, in the vulcanization production process of most tire companies in China, key links such as loading and unloading of green tires, removal of finished tires, and material transfer still rely heavily on manual operation. This not only results in low production efficiency but also poses a health hazard to operators, which is inconsistent with the current development trend of energy conservation, emission reduction, and green production under industrial automation.

[0055] To alleviate the labor intensity of manual operations, the industry has gradually adopted semi-automatic vulcanizing machines to replace some manual labor. This type of equipment mainly provides mechanical assistance for the green tire feeding and initial finished product unloading stages of the vulcanizing machine, reducing the frequency of direct manual intervention in the vulcanizing machine's operating area to a certain extent. However, existing vulcanization production technology still has many unavoidable shortcomings: Firstly, semi-automatic vulcanizing machines still require manual intervention in processes such as finished product removal and material transfer, and operators are still exposed to high temperatures and toxic gases, so health and safety risks have not been fundamentally eliminated. Secondly, the machines are limited in function and lack integration. Existing equipment cannot achieve fully automated operation of raw material supply, finished product handling, automatic mold opening, and material detection. The connection between each process still relies on manual intervention, resulting in a fragmented production process with insufficient coordination. It is impossible to achieve online collaborative operation of multiple vulcanizing machines, which makes it difficult to improve production efficiency and meet the needs of large-scale continuous production.

[0056] In view of the above problems, embodiments of the present invention provide an automatic tire ejection device for multiple solid tire vulcanizing machines to be used in tandem. This device enables unmanned operation of the entire vulcanizing production process, avoids the risk of human exposure, and improves the collaborative efficiency of multiple devices. As a result, it improves vulcanizing production efficiency, ensures operational safety, achieves energy conservation and emission reduction and green production, and ultimately enhances the competitiveness of enterprises.

[0057] The following is combined Figures 1 to 21 The present invention describes an automatic tire ejection device for use in conjunction with multiple solid tire vulcanizing machines.

[0058] Reference Figure 1 and Figure 2An automatic tire ejection device for use with multiple solid tire vulcanizing machines is disclosed. It includes a traveling mechanism 1, a base mechanism 2, a push-pull mold mechanism 3, a mold opening mechanism 4, a demolding mechanism 5, and a tire loading / unloading mechanism 6. The traveling mechanism 1 travels along a preset path. The base mechanism 2 is located on the traveling mechanism 1 and corresponds one-to-one with each of the multiple vulcanizing machines 9 arranged along the preset path, driven by the traveling mechanism 1. The base mechanism 2 is equipped with a mold locking station, a mold opening station, and a tire ejection station. The push-pull mold mechanism 3 is located on the base mechanism 2 and connects to the mold 8 inside the vulcanizing machine 9 at the mold locking station, pulling the mold 8 to the mold opening station and the tire ejection station. The mold opening mechanism 4 is located at the mold opening station and is used for opening and closing the mold 8. The demolding mechanism 5 is located at the mold opening station and is used to eject the molded tire from the mold 8. The tire loading / unloading mechanism 6 is connected to the base mechanism 2 and is used for gripping and conveying the molded tire and gripping and installing the green tire.

[0059] In actual operation, the walking mechanism 1 serves as the mobile foundation of the device, enabling it to travel along a preset path and drive the base mechanism 2 to align with the multiple vulcanizing machines 9 arranged along the path, thus achieving multi-device online operation. The base mechanism 2 integrates the mold locking station, mold opening station, and tire ejection station, providing an orderly operating platform for each process and ensuring the continuity of the process. When the base mechanism 2 is aligned with the target vulcanizing machine 9, the push-pull mold mechanism 3 first connects with the mold 8 inside the vulcanizing machine 9 at the mold locking station, and then pulls the vulcanized mold 8 out to the mold opening station. The mold opening mechanism 4 performs the mold opening action at the mold opening station, while the demolding mechanism 5 ejects the molded tire from the mold 8. Then, the push-pull mold mechanism 3 pulls the mold 8 to the tire ejection station, and the tire loading and unloading mechanism 6 grabs the demolded molded tire at the tire ejection station and transports it to the preset collection area to complete the tire ejection. After the tire is ejected, the loading and unloading mechanism 6 grabs the green tire to be vulcanized and installs it into the mold 8. Then, the mold 8 is pushed to the mold opening station by the push-pull mold mechanism 3. The mold opening mechanism 4 performs the mold closing action at the mold opening station. Finally, the mold 8 after mold closing is pushed into the vulcanizing machine 9 by the push-pull mold mechanism 3, realizing the automated switching from finished tire ejection to green tire loading.

[0060] Compared to related technologies, the fully automated collaboration of the walking mechanism 1, push-pull mold mechanism 3, mold opening mechanism 4, demolding mechanism 5, and tire loading / unloading mechanism 6 enables unmanned operation of the entire vulcanization production process. Operators are not exposed to high temperatures or toxic and harmful gas environments, reducing health and safety hazards and meeting the requirements of green production and safe operation. At the same time, relying on the multi-station integrated design of the base mechanism 2 and the efficient linkage of each mechanism, the connection of "mold 8 pulling out - mold opening - demolding - tire delivery - green tire installation - mold 8 resetting" is realized. With the walking mechanism 1 driving the device to work in line with multiple vulcanizing machines 9 one by one, the operation limitations of a single machine are broken, the defects of existing technologies that cannot be connected and coordinated are solved, production efficiency and large-scale production capacity are improved, the needs of large-scale continuous production are met, and the market competitiveness of enterprises is effectively enhanced.

[0061] The specific structure of each mechanism in the device will be described in detail below with reference to the accompanying drawings.

[0062] Reference Figure 3 and Figure 4 The walking mechanism 1 includes a ground rail 11, a chassis 12, and a first driving member 13. The ground rail 11 is laid along a preset path and two parallel rails are arranged alternately. A first rack 14 is provided on the ground rail 11. The chassis 12 is supported on the ground rail 11. A first gear 15 is rotatably connected to both sides of the chassis 12. The first gear 15 meshes with the first rack 14. The first driving member 13 is connected to the first gear 15 on both sides of the chassis 12 through a transmission shaft 16 and is used to drive the first gear 15 to rotate.

[0063] During operation, the first drive component 13 synchronously drives the first gears 15 on both sides of the chassis 12 to rotate via the transmission shaft 16. This causes the first gears 15 to move along the meshing first rack 14, thereby driving the chassis 12 to travel along the preset path of the ground rail 11. Compared with other transmission methods, the gear and rack system has higher transmission efficiency and a more stable transmission ratio, thus effectively improving the stability and alignment accuracy of the travel process. This solves the problem of poor process connection caused by equipment alignment deviations in the operation of multiple vulcanizing machines 9, providing a reliable guarantee for the realization of fully automated operation.

[0064] Understandably, depending on different load-bearing requirements and installation scenarios, the ground rail 11 can be configured in various structural forms, including rectangular rails, I-beam rails, grooved rails, and T-shaped rails, forming a stable connection with the ground through bolt fixing or pre-embedding. Correspondingly, the bottom of the chassis 12 is equipped with wheels that fit snugly into the ground rail 11 structure. The shape and size of the wheel grooves match the cross-sectional profile of the ground rail 11, allowing the wheels to fit tightly into the ground rail 11 and roll along the extension direction of the ground rail 11, thus providing a regular and stable guiding foundation for the movement of the chassis 12.

[0065] The first rack 14 is arranged along the extension direction of the ground rail 11 and is integrally formed with the ground rail 11 or can be detachably fixed. The first gears 15 on both sides of the chassis 12 are coaxially fixedly connected through the aforementioned transmission shaft 16. The first drive member 13 is connected to the transmission shaft 16, thereby driving the first gears 15 on both sides to rotate synchronously through the transmission shaft 16, so as to realize the stable movement of the chassis 12. The first drive member 13 can be a motor or a combination of a motor and a reducer. The output end of the first drive member 13 and the transmission shaft 16 can be driven by a meshing gear set or a sprocket chain. The specific selection and configuration need to be based on actual needs, and no specific limitation is made here.

[0066] Further investigation in practical applications revealed that while the gear and rack transmission method can improve the stability and alignment accuracy of the walking mechanism 1 during its movement, it is highly dependent on the installation accuracy. Factors such as horizontality errors on both sides of the ground rail 11 during installation, misalignment of the rack, structural deformation during the use of the device, and foundation settlement can cause the gear transmission structure to bear additional stress, leading to shaft seizure, abnormal gear wear, or even motor overload, making it difficult to guarantee the stability of the walking mechanism 1 during operation.

[0067] Therefore, in one example of the present invention, reference is made to Figure 5 The drive shaft 16 includes at least two shaft segments 160 and a coupling 161 for connecting two adjacent shaft segments 160; wherein, the coupling 161 includes two connecting bodies 162, the two connecting bodies 162 are fixedly connected to the two shaft segments 160 respectively, at least one of the connecting bodies 162 is provided with a waist-shaped hole 163, a plurality of waist-shaped holes 163 are arranged around the axis of the drive shaft 16, and the two connecting bodies 162 are connected through the waist-shaped hole 163 and a connecting piece that slides through the waist-shaped hole 163.

[0068] With this configuration, under normal operating conditions, the two connecting bodies 162 of the coupling 161 effectively transmit force through the mating surfaces of the connecting parts and the oblong hole 163, reliably transmitting the driving torque output by the first driving component 13. Simultaneously, the clearance fit between the oblong hole 163 and the connecting parts allows adjacent shaft segments 160 to rotate relative to each other within a certain angle range. When there is a parallelism deviation in the installation of the ground rail 11 or misalignment in the rack installation, the circumferential force generated by the meshing of the gear and rack will drive the two connecting bodies 162 of the coupling 161 to rotate slightly relative to each other along the length direction of the oblong hole 163, automatically finding the optimal meshing position of the gear and rack. Furthermore, to address potential issues such as tooth pitch misalignment and parallelism deviation during rack installation, the coupling 161 can absorb the circumferential impact force generated during meshing through the sliding fit between the connecting piece and the oblong hole 163, preventing transmission jamming caused by hard contact between the gear and rack. In addition, the coupling 161 can effectively absorb stress caused by installation deviations of the ground rail 11 and shaft assembly errors, alleviating stress concentration in the shaft system. Compared to rigidly connected shaft systems, it reduces or even avoids shaft jamming or seizing problems caused by installation errors or fluctuations in operating conditions, ensuring the long-term stable operation of the traveling mechanism 1.

[0069] In detail, the drive shaft 16 includes two shaft segments 160. Among the two connecting bodies 162 of the coupling 161, one connecting body 162 is provided with a waist-shaped hole 163, and the other connecting body 162 is provided with a round hole. The connecting parts can be bolts or pins, etc.

[0070] In one example of the present invention, reference is made to Figure 1 and Figure 6The automatic tire ejection device used by the multiple solid tire vulcanizing machines also includes a positioning mechanism 7; the positioning mechanism 7 is connected to the base mechanism 2 and is used to position the base mechanism 2 at the corresponding vulcanizing machine 9 position.

[0071] With this configuration, when the walking mechanism 1 moves the base mechanism 2 to the preset alignment area of ​​the target vulcanizing machine 9, the positioning mechanism 7 is activated to lock the base mechanism 2 in the position corresponding to the vulcanizing machine 9. This prevents the walking mechanism 1 from undergoing slight displacement or positioning deviation due to external environmental factors, providing a stable and reliable position reference for each process and improving the reliability of equipment operation and the stability of the production process.

[0072] In detail, the positioning mechanism 7 includes a positioning seat 71, a positioning member 72, a first connecting rod 73, a second connecting rod 74, and a positioning drive member 75; wherein, the positioning seat 71 is fixedly connected to one of the base mechanism 2 and the vulcanizing machine 9; the first end of the positioning member 72 is hinged to the positioning seat 71, and the second end can swing close to or away from the positioning seat 71; the first connecting rod 73 is close to the second end of the positioning member 72, and the first end of the first connecting rod 73 is hinged to the positioning seat 71; the first end of the second connecting rod 74 is hinged to the second end of the first connecting rod 73, and the other end is hinged to the positioning member 72; the output end of the positioning drive member 75 is connected to the second connecting rod 74 and is used to drive the second connecting rod 74 to swing; the side of the positioning member 72 facing away from the second connecting rod 74 is provided with a positioning groove 720 for engaging with the mating part 76 on the other of the base mechanism 2 and the vulcanizing machine 9.

[0073] With this configuration, the positioning drive 75 drives the second link 74 to swing, which in turn drives the first link 73 and the positioning member 72 to swing around the hinge point. This allows the positioning groove 720 on the positioning member 72 to engage with the corresponding mating part 76 for positioning. Simultaneously, the positioning member 72, the first link 73, and the second link 74 cooperate to form a self-locking mechanism for the link 55. When the positioning groove 720 is fully engaged with the mating part 76, the first link 73 and the second link 74 are located on the same straight line, i.e., at the dead point, achieving mechanical self-locking. There is no need for the positioning drive 75 to continuously apply driving force. Even if the cylinder loses pressure, the rigid locking state can be maintained by the geometric constraints of the link 55 itself, ensuring stable and safe positioning. When it is necessary to release the positioning, the positioning drive 75 drives the second link 74 to swing in the opposite direction, breaking the self-locking state of the link 55, which in turn drives the positioning member 72 to rotate and unlock.

[0074] In detail, the positioning drive 75 can be configured as any form of linear drive element such as a cylinder, hydraulic cylinder, or electric actuator, and one end of the positioning drive 75 is hinged to the second connecting rod 74, and the other end is hinged to the positioning seat 71.

[0075] In one example of the present invention, reference is made to Figure 7The base mechanism 2 includes a base 21 and a primary lifting device 22; wherein, the base 21 is connected to the walking mechanism 1; the primary lifting device 22 is disposed between the base 21 and the walking mechanism 1 and is used to drive the base 21 to lift.

[0076] With this configuration, after the walking mechanism 1 drives the base mechanism 2 to align with the vulcanizing machine 9, the first-stage lifting device 22 can adjust the height of the base 21 and the worktable 31 according to the molds 8 of different heights on the vulcanizing machine 9, so that the worktable 31 is aligned with the molds 8 of different heights on the vulcanizing machine 9, and the tire ejection work of the molds 8 of different heights is realized.

[0077] It is understood that the primary lifting device 22 can be configured as any form of linear drive element such as a hydraulic cylinder, pneumatic cylinder, electric push rod, or screw jack to match different operational needs and scenarios; no specific restrictions are imposed here.

[0078] In addition, a thicker primary guide post 23 can be fixedly connected to the chassis 12 of the walking mechanism 1, and a primary guide sleeve 24 can be set on the base 21. By sliding the primary guide sleeve 24 and the primary guide post 23 together, the lifting and lowering of the base 21 can be constrained and guided, thereby improving the smoothness and stability of the lifting and lowering of the base 21.

[0079] In addition, a thinner secondary guide post 25 can be fixedly connected to the chassis 12 of the walking mechanism 1, and a secondary guide sleeve 26 can be set on the base 21. By sliding the secondary guide sleeve 26 and the secondary guide post 25 together, further constraints and guidance on the lifting of the base 21 can be achieved, thereby improving the smoothness and stability of the lifting of the base 21.

[0080] In one example of the present invention, reference is made to Figure 8 and Figure 9 The push-pull mold mechanism 3 includes a worktable 31, a first push-pull device 32, and a second push-pull device 33. The worktable 31 is disposed on the base 21 and can slide between the mold opening station and the mold ejection station. The first push-pull device 32 is connected to the worktable 31 and can slide between the mold locking station and the mold opening station. It is used to connect the mold 8 and pull the mold 8 out to the worktable 31 and the mold opening station. The second push-pull device 33 is connected between the worktable 31 and the base 21 and is used to drive the worktable 31 to move between the mold opening station and the mold ejection station.

[0081] With this setup, after the walking mechanism 1 drives the base mechanism 2 to align with the target vulcanizing machine 9, the first push-pull device 32 moves to the mold-locking position and its execution end connects with the mold 8 inside the vulcanizing machine 9. Then, the first push-pull device 32 moves in the opposite direction, pulling the mold 8 out of the vulcanizing machine 9 until the mold 8 is transferred to the worktable 31. At this time, the worktable 31 is in the mold-opening position, providing stable support for subsequent mold-opening and demolding operations. After the mold-opening mechanism 4 completes the mold-opening and the demolding mechanism 5 completes the ejection of the molten tire, the second push-pull device 33 pulls the worktable 31 to the tire-exiting position. After the tire loading and unloading mechanism 6 completes the gripping of the molten tire and the installation of the green tire, the second push-pull device 33 drives the worktable 31 back to the mold-opening position. The mold-opening mechanism 4 performs the mold-closing action, and the mold 8 after being closed by the first push-pull device 32 is pushed back into the vulcanizing machine 9, completing one complete mold 8 transfer and cycle operation.

[0082] In detail, the worktable 31 can be connected to the base 21 via a sliding guide or a rolling guide to ensure the stability and smoothness of the sliding of the worktable 31.

[0083] In detail, the first push-pull device 32 includes a traction seat 321, a traction arm 322, a first drive structure 323, and a second drive structure 324. The traction seat 321 is slidably connected to the worktable 31, and the side closer to the mold-locking station is the traction side. One end of the traction arm 322 is hinged to the traction seat 321, and the other end extends out of the traction side to form a traction head 325. The traction head 325 can be raised away from the worktable 31 or lowered closer to the worktable 31 as the traction arm 322 swings, so as to engage or disengage with the slot 80 on the mold 8. The first drive structure 323 is disposed between the traction arm 322 and the traction seat 321 and is used to drive the traction arm 322 to swing. The second drive structure 324 is disposed between the traction seat 321 and the worktable 31 and is used to drive the traction seat 321 to slide.

[0084] With this configuration, once the workbench 31 is aligned with the mold 8 inside the vulcanizing machine 9, the second drive structure 324 drives the traction seat 321 to slide along the workbench 31 towards the mold-locking station, causing the traction head 325 at the end of the traction arm 322 to gradually approach the slot 80 on the mold 8. Subsequently, the first drive structure 323 is activated, driving the traction arm 322 to swing and raise the traction head 325. When the traction head 325 aligns with the slot 80 on the mold 8, the first drive structure 323 drives the traction arm 322 to swing and lower the traction head 325, causing it to engage with the mold 8. After engagement, the second drive structure 324 reverses its rotation, driving the traction seat 321 to slide along the workbench 31 towards the mold-opening station. Through the pulling action of the traction arm 322, the mold 8 is pulled out from inside the vulcanizing machine 9 and transferred to the workbench 31 and the mold-opening station.

[0085] After the mold 8 completes the mold opening, demolding, tire ejection and green tire assembly processes, the second drive structure 324 drives the traction seat 321 to slide towards the mold locking station, pushing the mold 8 with the assembled green tire back into the vulcanizing machine 9. Then the first drive structure 323 drives the traction arm 322 to swing in the opposite direction, causing the traction head 325 to rise and disengage from the slot 80, thereby realizing the separation of the first push-pull device 32 from the mold 8.

[0086] Furthermore, the workbench 31 is provided with two guide rails 34, which are arranged in parallel and alternately, and the opposite side of the two guide rails 34 is provided with guide grooves 341. The two sides of the traction seat 321 are embedded in the guide grooves 341. The bottom surface of the guide groove 341 is connected to the first guide wheel 342, the side surface is connected to the second guide wheel 343, and the side of the traction seat 321 is connected to the third guide wheel 344. The first guide wheel 342 is in rolling contact with the bottom surface of the traction seat 321, the second guide wheel 343 is in rolling contact with the side of the traction seat 321, and the third guide wheel 344 is in rolling contact with the top surface of the guide groove 341.

[0087] This configuration, with its three-sided rolling guide structure, reduces the running resistance of the traction seat 321 during sliding, preventing component jamming and abnormal wear caused by sliding friction. Simultaneously, the first guide wheel 342, the second guide wheel 343, and the third guide wheel 344 cooperate to form a comprehensive limiting constraint on the traction seat 321 from both vertical and horizontal directions. This prevents the traction seat 321 from shifting vertically, swaying horizontally, or warping when pushing and pulling the mold 8 under heavy load, ensuring the straightness and positional accuracy of the traction seat 321's sliding trajectory. It also ensures that the traction head 325 can accurately align with the mold 8's slot 80. The rolling cooperation also reduces equipment operating noise and component wear, improves durability and operational stability, and makes the pushing and pulling action of the mold 8 more stable and reliable, meeting the requirements of high-frequency automated operations.

[0088] In detail, the first drive structure 323 can be configured as any form of linear drive element such as a cylinder, hydraulic cylinder, or electric actuator, and one end of the first drive structure 323 is hinged to the traction seat 321, and the other end is hinged to the traction arm 322.

[0089] In detail, the second drive structure 324 includes a second rack 3241, a second gear, and a second drive member 3242; wherein, the second rack 3241 is arranged on the worktable 31; the second gear is rotatably connected to the traction seat 321 and meshes with the second rack 3241; the second drive member 3242 is drively connected to the second gear and is used to drive the second gear to rotate.

[0090] With this configuration, the second drive unit 3242 drives the second gear to rotate, causing the second gear to move along the meshing second rack 3241, thereby driving the traction seat 321 to move. Relying on the high efficiency, high precision and stable transmission ratio of the gear and rack transmission, the stability and alignment accuracy of the traction seat 321 during the sliding process are improved.

[0091] It is understood that the second drive component 3242 can be a motor or a combination of a motor and a reducer. The output end of the second drive component 3242 and the second gear can be driven by gears or shafts. The specific selection and configuration need to be based on actual requirements, and no specific limitation is made here.

[0092] Furthermore, the traction side of the traction seat 321 is provided with a bottom support plate 3211. The upper surface of the bottom support plate 3211 and the side of the traction side form a stepped surface for contacting the bottom and end surfaces of the mold 8.

[0093] With this configuration, the upper surface of the base plate 3211 and the side of the traction side together form a stepped surface. When the traction seat 321 approaches and docks with the mold 8, the stepped surface can be in close contact with the bottom and end faces of the mold 8 respectively, thereby achieving end face positioning and bottom support of the mold 8. Furthermore, after the first drive structure 323 drives the traction arm 322 to swing and the traction head 325 is inserted into the slot 80 of the mold 8, the traction head 325 and the base plate 3211 cooperate to clamp the mold 8, making the pulling out, moving and pushing back of the mold 8 more stable and reliable.

[0094] In one example of the present invention, reference is made to Figure 10 The mold opening mechanism 4 includes a lifting platform 41, a secondary lifting device 42, a mold opening lock 43, and a locking structure 44. The lifting platform 41 can move closer to or further away from the base mechanism 2. The secondary lifting device 42 is connected between the lifting platform 41 and the base mechanism 2 and is used to drive the lifting platform 41 to move up and down. The mold opening lock 43 is connected to the side of the lifting platform 41 facing the base mechanism 2. The mold opening lock 43 has two states: locked and unlocked. In the locked state, the mold opening lock 43 is connected to the mold 8. In the unlocked state, the mold opening lock 43 is separated from the mold 8. The locking structure 44 is used to lock the lifting platform 41 at a preset height.

[0095] With this setup, when mold 8 is moved to the mold opening station by the push-pull mold mechanism 3, the secondary lifting device 42 is activated, driving the lifting platform 41 to descend towards the worktable 31 of the base mechanism 2 until the mold opening lock 43 on the lifting platform 41 aligns with the corresponding locking part on mold 8. Then, the mold opening lock 43 switches to the locking state and connects with the upper mold of mold 8. After locking is completed, the secondary lifting device 42 drives the lifting platform 41 to rise to the preset height and locks the lifting platform 41 at the preset height through the locking structure 44, providing sufficient operating space for the subsequent ejection operation of the demolding mechanism 5 and avoiding interference. After the demolding and green mold installation processes are completed, the secondary lifting device 42 drives the lifting platform 41 to descend to achieve mold closing. After the mold is closed, the mold opening lock 43 switches to the unlocking state, the mold opening mechanism 4 separates from mold 8, and finally the secondary lifting device 42 drives the lifting platform 41 to reset, completing one complete mold opening and closing cycle.

[0096] In detail, multiple mold-opening locks 43 form an unlocking space. Each mold-opening lock 43 includes a lock base 431, an upper locking block 432, a lower locking block 433, and a third driving member 434. The lock base 431 is fixedly connected to the lifting platform 41. One end of the upper locking block 432 is fixedly connected to the lock base 431, and the other end extends into the unlocking space. The lower locking block 433 is spaced apart from the upper locking block 432 and is closer to the base mechanism 2. One end of the lower locking block 433 is connected to the lock base 431, and the other end can extend into the unlocking space in the locked state or retract in the unlocked state. The third driving member 434 is connected to the lower locking block 433 and is used to drive the lower locking block 433 to move.

[0097] In practical applications, multiple mold-opening locks 43 surround and form an unlocking space that matches the locking part of the mold 8. When the lifting platform 41 moves the mold-opening locks 43 closer to the mold 8, the locking part of the mold 8 can smoothly enter the unlocking space. The fixed upper locking block 432 first contacts the mold 8 and abuts and positions itself on the top of the upper mold of the mold 8. After the third driving component 434 drives the lower locking block 433 to extend to the inside of the unlocking space, the lower locking block 433 and the upper locking block 432 cooperate accordingly to lock the top and bottom of the upper mold, so that the upper mold is connected to the lifting platform 41. When the secondary lifting device 42 moves the lifting platform 41 up and down, it can drive the upper mold to complete the mold opening or closing action. After the mold 8 closes and resets, the third driving component 434 drives the lower locking block 433 to retract to the outside of the unlocking space, the mold-opening lock 43 switches to the unlocking state, automatically releases the connection with the upper mold, and realizes the separation of the lifting platform 41 and the upper mold.

[0098] In more detail, the lower locking block 433 includes a first part and a second part arranged at an angle. The first part of the lower locking block 433 is hinged to the lock seat 431, so that the second part can extend out of the inside of the lock seat 431 or retract from the inside of the lock seat 431 as the first part swings. The third driving member 434 can be configured as any linear element such as a cylinder, hydraulic cylinder, electric actuator, etc., and one end of the third driving member 434 is hinged to the lower locking block 433, and the other end is hinged to the lock seat 431.

[0099] With this configuration, the lower locking block 433 can extend or retract by swinging, which takes up little space, has a compact and durable structure, and can be adapted to high-frequency automated mold opening and closing operations, thus improving the stability and efficiency of the device operation.

[0100] To facilitate locking of the lifting platform 41, in one example of the present invention, the base 21 is slidably engaged with the primary guide post 23 via the primary guide sleeve 24, and slidably engaged with the secondary guide post 25 via the secondary guide sleeve 26; the locking structure 44 includes a pin 441 and a locking hole; wherein, the pin 441 is connected to the lifting platform 41 or the primary guide sleeve 24; the locking hole is provided on the primary guide post 23 and corresponds to the position of the pin 441, and the pin 441 can slide closer to or further away from the locking hole; the locking drive member 442 is connected to the pin 441 for driving the pin 441 to slide.

[0101] This configuration, through the sliding engagement of the primary guide post 23 and primary guide sleeve 24, and the secondary guide post 25 and secondary guide sleeve 26, provides constraint and guidance for the lifting platform 41, preventing problems such as swaying and shaking of the lifting platform 41 during lifting and mold opening. The locking drive component 442 can drive the pin 441 to slide closer to or further away from the locking hole on the primary guide post 23. When the lifting platform 41 is driven to the preset mold opening height by the secondary lifting device 42, the locking drive component 442 pushes the pin 441 to slide and insert into the corresponding locking hole. Through the rigid engagement of the pin 441 and the locking hole, the lifting platform 41 is stably locked at the preset position, limiting its vertical displacement, so that the lifting platform 41 maintains a constant position in subsequent processes such as demolding and mold assembly, avoiding interference. Before the mold closing process is started, the locking drive component 442 drives the pin 441 to retract and disengage from the locking hole, thereby releasing the locking constraint on the lifting platform 41, allowing the secondary lifting device 42 to drive the lifting platform 41 to descend and close the mold again.

[0102] It is understandable that the locking drive 442 can be configured as any form of linear drive element such as a cylinder, hydraulic cylinder, or electric actuator. The specific choice depends on the actual requirements, and no specific restrictions are made here.

[0103] Further investigation in practical applications revealed that the separation process of the tire, rim, and upper and lower molds after the existing tire vulcanization molding process typically employs the following technical solutions: First, a simple hydraulic cylinder ejection mechanism is used to directly eject the tire from the lower mold; second, the upper mold is lifted as a whole by a mold opening machine, and demolding is achieved by the tire's own weight or a simple ejector rod; third, some structures have clamping mechanisms that directly clamp the outer circle or tread of the tire; fourth, demolding and part removal are carried out through step-by-step manual intervention or semi-automation.

[0104] However, the above-mentioned demolding methods have many unavoidable drawbacks: directly ejecting the tire tread can easily cause tire deformation, scratches, and tire bead damage, resulting in a low yield; the separation between the upper mold and the tire is unreliable, and the tire may stick to the upper mold or be lifted up, causing positional displacement; the steel rim and mold 8 are not easy to separate, and the steel rim may get stuck or not be properly demolded; the ejection, mold opening, and clamping actions are not synchronized or coordinated, and the automated process is not continuous; the ejection height and clamping position are uncontrollable, making it difficult for the robot to pick up parts and resulting in a high failure rate; the overall structure has poor versatility, low production efficiency, and is not suitable for continuous automated production lines.

[0105] Therefore, in one example of the present invention, reference is made to Figure 11 The demolding mechanism 5 includes a first ejector 52, an ejector seat 51, hooks 53, and a second ejector 54. The first ejector 52 is connected to the base 21 and its ejection end corresponds to the demolding hole on the worktable 31. The ejector seat 51 is fixedly connected to the ejection end of the first ejector 52. At least two hooks 53 are arranged around the center of the ejector seat 51. The first end of the hook 53 is hinged to the ejector seat 51, and the second end protrudes from the upper surface of the ejector seat 51. The second ends of the multiple hooks 53 are bent in opposite directions to form hooks. The output end of the second ejector 54 is connected to the hooks 53 and is used to drive the multiple hooks 53 to open and close.

[0106] In detail, the second ejector 54 can be connected to multiple hooks 53 via a connecting rod 55; one end of the connecting rod 55 is hinged to the ejector end of the second ejector 54, and the other end is hinged to the hooks 53, so that the second ejector 54 can drive multiple hooks 53 to open and close synchronously via the connecting rod 55.

[0107] With this configuration, before the mold 8 is moved to the mold opening station by the push-pull mold mechanism 3 and before the mold opening mechanism 4 performs the mold opening action, the demolding mechanism 5 starts its operation. In the initial state, the first ejector 52 and the second ejector 54 are both in the retracted state, and multiple hooks 53 are pulled inward under the traction of the connecting rod 55. When demolding, the first ejector 52 starts, driving the ejector seat 51, hooks 53 and connecting rod 55 to rise as a whole, so that the ejector seat 51 drives the retracted hooks 53 to pass through the demolding hole of the worktable 31 until the ejector seat 51 rises and abuts against the lower surface of the steel ring to complete the initial abutment positioning.

[0108] Then, the second ejector 54 is activated, with its ejector end extending upward. Through the connecting rod 55, multiple hooks 53 surrounding the center of the ejector seat 51 are driven to open outward simultaneously. The hook-shaped ends of the hooks 53, which are bent in the opposite direction, hook onto the inner edge of the steel ring, thereby positioning and locking the steel ring. Subsequently, the secondary lifting device 42 of the mold opening mechanism 4 drives the lifting platform 41 to rise upward. Through the mold opening lock 43, the upper mold rises synchronously. Under the locking force of the hooks 53 on the steel ring, the upper mold separates smoothly from the tire, steel ring, and lower mold 8, effectively avoiding the problem of the tire sticking to the mold and being lifted and shifted by the upper mold.

[0109] Then, the first ejector 52 continues to eject upwards, and through the ejector seat 51 and the hook 53, it drives the tire and steel rim to rise synchronously, so that the tire is completely separated from the cavity of the lower mold 8. At the same time, a part-removal gap is formed between the lower surface of the tire and the upper surface of the lower mold 8, providing operating space for the tire loading and unloading mechanism 6 to remove the part. After gripping the tire, the tire loading and unloading mechanism 6 continues to descend until it touches the surface of the lower mold. The first ejector 52 drives the whole thing to descend. Once it has descended to the bottom, the steel rim and tire are separated. The second ejector 54 retracts. After it has retracted to the bottom, the tire loading and unloading mechanism 6 grabs the tire and rises, and then moves horizontally out to complete the tire removal process.

[0110] It is understood that the first ejector 52 and the second ejector 54 can be configured as any form of linear drive element such as a cylinder, hydraulic cylinder, or electric actuator. In this embodiment, the first ejector 52 is configured as a hydraulic cylinder and the second ejector 54 is configured as a cylinder.

[0111] In one example of the present invention, reference is made to Figure 1 and Figure 2 The tire loading and unloading mechanism 6 includes a tire unloading slide rail 61, a tire loading slide rail 62, a tire unloading robot assembly 63, a tire unloading drive component 64, a tire loading robot assembly 65, and a tire loading drive component 66. The tire unloading slide rail 61 extends from the tire exit position to the clean tire position, and the tire loading slide rail 62 extends from the tire exit position to the green tire position. The tire unloading robot assembly 63 is connected to the tire unloading slide rail 61. The tire unloading drive component 64 drives the tire unloading robot 632 to move along the tire unloading slide rail 61. The tire loading robot assembly 65 is connected to the tire loading slide rail 62. The tire loading drive component 66 drives the tire loading robot 652 to move along the tire loading slide rail 62.

[0112] With this setup, the tire unloading robot assembly 63 and the tire loading robot assembly 65 can work together to automate the synchronous operation of green tire installation and tire transfer. When the worktable 31 of the base mechanism 2 slides to the tire exit position, the tire unloading robot assembly 63, driven by the tire unloading drive 64, moves from the tire exit position to the tire exit position along the tire unloading slide rail 61, grabs the tire that has been demolded from the mold 8, and then the tire unloading drive 64 drives the tire unloading robot assembly 63 to move along the tire unloading slide rail 61 to transfer the tire to the tire exit position for further processing or storage. At the same time, the tire loading robot assembly 65, driven by the tire loading drive 66, moves from the green tire position to the tire exit position along the tire loading slide rail 62, places the pre-grabbed green tire into the mold 8 of the worktable 31, and completes the automated installation of the green tire.

[0113] Compared to related technologies, the independently designed tire unloading robot component 63 and tire loading robot component 65 enable tire unloading and loading actions to be carried out simultaneously and in parallel, shortening the single-wheel operation cycle and improving overall production efficiency. The entire mechanism requires no manual intervention, realizing full automation of the tire loading and unloading process. It connects the pre-process and subsequent processes such as demolding and vulcanization, providing efficient and stable tire transfer and installation guarantees for continuous automated production lines with multiple vulcanizing machines in a 9-unit configuration.

[0114] To elaborate further, refer to Figures 12 to 14 The tire removal manipulator assembly 63 includes a tire removal lifting structure 631, a tire removal manipulator 632, and a tire removal limiting structure 635; wherein, one end of the tire removal lifting structure 631 is slidably connected to the tire removal slide rail 61; the tire removal manipulator 632 is connected to the other end of the tire removal lifting structure 631; and the tire removal limiting structure 635 is used to limit the lifting stroke of the tire removal lifting structure 631.

[0115] With this configuration, the tire unloading lifting structure 631 can slide along the tire unloading slide rail 61 under the drive of the tire unloading drive component 64, and at the same time drive the tire unloading robot 632 to complete the vertical lifting action, so as to achieve precise gripping and transfer of the tire. The tire unloading limiting structure 635 can limit the descent stroke of the tire unloading lifting structure 631, so as to avoid the tire unloading robot 632 from colliding and being damaged by the worktable 31, mold 8, etc. due to excessive descent stroke. This not only ensures the positioning accuracy of the robot when gripping the tire, but also effectively protects the safety of the equipment and the tire body, making the lifting action of the tire unloading operation more controllable and safer.

[0116] In detail, the bottom end of the tire removal lifting structure 631 is connected to a mounting base 633, the tire removal manipulator 632 is floatingly connected to the mounting base 633, and a first contact 634 is fixedly connected to the tire removal manipulator 632; the tire removal limiting structure 635 includes at least one proximity switch, which is connected to the tire removal lifting structure 631 and located on the movement path of the first contact 634. When the first contact 634 triggers the proximity switch, the proximity switch feeds back a signal, and the tire removal lifting structure 631 performs a corresponding operation based on the signal.

[0117] With this configuration, the floating tire unloading robot 632 can adaptively adjust its height. When the descent stroke of the tire unloading robot 632 is too large, the first contact 634 fixed on the tire unloading robot 632 will move upward and trigger the proximity switch. The proximity switch will send a stop signal to the control system. After receiving the signal, the tire unloading lifting structure 631 will stop descending, thus avoiding rigid collisions between the tire unloading robot 632 and the tire body or mold 8, which could cause product damage or equipment failure. At the same time, the tire unloading limiting structure 635 can be used to achieve high-precision control of the descent position, improving the safety and stability of the tire unloading operation.

[0118] In detail, there can be three proximity switches, which are located at the initial position, the working position, and the extreme position, respectively. When the first contact 634 triggers the proximity switch at the extreme position, the proximity switch feeds back a stop signal, and the tire unloading lifting structure 631 stops descending based on the stop signal.

[0119] In one example of the present invention, reference is made to Figures 15 to 17 The tire loading robot assembly 65 includes a tire loading lifting structure 651, a tire loading robot 652, and a tire loading limiting structure 655; wherein, one end of the tire loading lifting structure 651 is slidably connected to the tire loading slide rail 62; the tire loading robot 652 is connected to the other end of the tire loading lifting structure 651; and the tire loading limiting structure 655 is used to limit the lifting stroke of the tire loading lifting structure 651.

[0120] With this configuration, the tire loading lifting structure 651 can slide along the tire loading slide rail 62 under the drive of the tire loading drive component 66, and at the same time drive the tire loading robot 652 to complete the vertical lifting action to realize the gripping and transfer of the green tire. The tire loading limiting structure 655 can limit the descent stroke of the tire loading lifting structure 651 to avoid the tire loading robot 652 from colliding and being damaged by the worktable 31, mold 8, etc. due to excessive descent stroke. This not only ensures the positioning accuracy of the tire loading robot 652 when gripping the tire, but also effectively protects the safety of the equipment and the tire body, making the lifting action of the tire loading operation more controllable and safer.

[0121] In detail, the bottom end of the tire loading lifting structure 651 is connected to a connecting seat 653, the tire loading robot 652 is floatingly connected to the connecting seat 653, and a second contact 654 is fixedly connected to the tire loading robot 652; the tire loading limiting structure 655 includes at least one proximity switch, which is connected to the tire loading lifting structure 651 and located on the movement path of the second contact 654. When the second contact 654 triggers the proximity switch, the proximity switch feeds back a signal, and the tire loading lifting structure 651 performs a corresponding operation based on the signal.

[0122] With this configuration, the floating tire loading robot 652 can adaptively adjust its height. When the descent stroke of the tire loading robot 652 is too large, the second contact 654 fixed on the tire loading robot 652 will move upward and trigger the proximity switch. The proximity switch will send a stop signal to the control system. After receiving the signal, the tire loading lifting structure 651 will stop descending, thus avoiding rigid collisions between the tire loading robot 652 and the tire body or mold 8, which could cause product damage or equipment failure. At the same time, the tire loading limiting structure 655 can also be used to achieve high-precision control of the descent position, improving the safety and stability of the tire loading operation.

[0123] In detail, there can be three proximity switches, which are located at the initial position, the working position, and the extreme position, respectively. When the second contact 654 triggers the proximity switch at the extreme position, the proximity switch feeds back a stop signal, and the tire loading lifting structure 651 stops descending based on the stop signal.

[0124] Understandably, the tire-unloading lifting structure 631 / tire-loading lifting structure 651 can be connected to the tire-unloading slide rail 61 / tire-loading slide rail 62 via sliding guide pairs or rolling guide pairs to ensure the stability and smoothness of the sliding of the tire-unloading lifting structure 631 / tire-loading lifting structure 651. Meanwhile, the tire-unloading drive component 64 / tire-loading drive component 66 can be configured as any form of linear drive element such as a cylinder, hydraulic cylinder, electric actuator, motor-driven rack and pinion, motor-driven ball screw, or rodless motor to drive the sliding of the tire-unloading lifting structure 631 / tire-loading lifting structure 651. Furthermore, the tire-unloading lifting structure 631 / tire-loading lifting structure 651 can also use any linear drive element such as a cylinder, hydraulic cylinder, electric actuator, motor-driven rack and pinion, or motor-driven ball screw to drive the lifting of the tire-unloading robot 632.

[0125] Reference Figure 18 and Figure 19 In this embodiment, the tire removal lifting structure 631 includes a lead screw frame 6310, a slide rail frame 6311, a lifting lead screw 6312, a nut sleeve 6313, a drive motor 6314, and an adjustment key 6315. The slide rail frame 6311 is slidably connected to the tire removal slide rail 61. The two ends of the lifting lead screw 6312 are rotatably connected to the two ends of the lead screw frame 6310, and the drive motor 6314 is drively connected to the lifting lead screw 6312. The nut sleeve 6313 is threaded onto the lifting lead screw 6312. The nut sleeve 6313 is connected to the slide rail frame 6311 via the adjustment key 6315, which provides radial and axial adjustment allowances for the nut sleeve 6313.

[0126] This design allows the adjustment key 6315 to overcome the limitations of rigid connections in existing technologies, providing bidirectional adjustment margins for the nut sleeve 6313 in both the axial and radial directions. This solves the inherent defects of long-stroke vertical screw drives. In the radial direction, the adjustment margin can adaptively compensate for bending deformation of the lifting screw 6312 caused by its own weight, insufficient machining accuracy, or installation deviations, preventing hard jamming between the screw and the nut sleeve 6313, effectively eliminating the "stuck" phenomenon, and ensuring uniform force and smooth operation during transmission. In the axial direction, the adjustment margin can offset the cumulative errors generated during assembly, reduce local stress concentration on the threaded transmission surface, and reduce the wear rate of the nut sleeve 6313 and the screw.

[0127] In detail, refer to Figures 19 to 21The adjusting key 6315 includes a first part 6316 and a second part 6317 protruding from one side of the first part 6316; the slide rail 6311 is provided with a first keyway 6318, the first part 6316 is inserted into the first keyway 6318, and an adjustable gap (e.g., 20 mils) is reserved between the first part 6316 and the inner wall of the first keyway 6318; the threaded sleeve is provided with a second keyway 6319, the second part 6317 is adapted to the second keyway 6319 and is slidably inserted into the second keyway 6319; the adjusting key 6315 is provided with a first through hole 6320 penetrating the first part 6316 and a second through hole 6321 penetrating the first part 6316 and the second part 6317, the first through hole 6320 is used for the first bolt to pass through and be threadedly connected to the nut sleeve 6313, and the second through hole 6321 is used for the second bolt to pass through and abut against the bottom wall of the second keyway 6319.

[0128] With this configuration, the adjustable gap between the first part 6316 and the first keyway 6318 allows the nut sleeve 6313 to adaptively adjust its position, preventing the nut sleeve 6313 from rigidly contacting the lead screw. Simultaneously, the second part 6317, in conjunction with the second keyway 6319 and the first and second bolts, forms a position adjustment structure. Tightening the second bolt causes its end to abut against the bottom wall of the second keyway 6319, generating a pushing force that causes the adjusting key 6315 to make a small displacement along the axial direction of the second keyway 6319. This, in turn, drives the nut sleeve 6313 to achieve fine-tuning of its position relative to the slide rail 6311. At the same time, the first bolt in the first through hole 6320 fixes the adjusting key 6315 and the nut sleeve 6313, ensuring stable position after adjustment. Through the synergistic effect of adaptive compensation and fine-tuning, the bending deformation of the lifting lead screw 6312, machining accuracy deviations, and accumulated assembly errors are offset, reducing or even eliminating potential problems such as jamming and sticking. This ensures uniform force distribution and smooth transmission in the threaded drive, while also reducing wear and extending service life.

[0129] It should be noted that the specific structure of the tire unloading robot 632 can refer to the existing external claw robot. The robot mainly consists of a base, a drive unit, a transmission mechanism and external gripper fingers. The claw fingers open and close synchronously through a pneumatic or electric drive unit in conjunction with a connecting rod. The claw finger ends are provided with an arc-shaped contact surface and an anti-slip protective structure, which can perform a wrap-around centering gripping from the outside of the solid tire. Its base and the mounting seat 633 of the tire unloading lifting structure 631 are connected by a floating connection.

[0130] The specific structure of the tire loading robot 652 can refer to the existing internal claw robot. The internal claw robot mainly consists of a base, a drive unit, a transmission mechanism, and internal support claws. It relies on pneumatic or electric drive in conjunction with linkage transmission to realize the synchronous opening and closing of the claws. During operation, the claws extend into the inside of the solid tire and open outward, forming a stable internal support clamp through the inside of the tire bead or steel rim. Its base and the mounting connection seat 653 of the tire loading lifting structure 651 are connected by a floating connection.

[0131] It is understood that, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0132] The automatic tire ejection device provided in this embodiment of the invention, which is used in conjunction with multiple solid tire vulcanizing machines, achieves unmanned operation of the entire vulcanization production process through the fully automated collaboration of the walking mechanism 1, the push-pull mold mechanism 3, the mold opening mechanism 4, the demolding mechanism 5, and the tire loading and unloading mechanism 6. Operators do not need to be exposed to high-temperature or toxic gas environments, reducing health and safety hazards and meeting the requirements of green production and safe operation. At the same time, relying on the multi-station integrated design of the base mechanism 2 and the efficient linkage of each mechanism, the connection of "mold 8 pulling out - mold opening - demolding - tire ejection - green tire installation - mold 8 resetting" is realized. With the help of the walking mechanism 1, the device is aligned with multiple vulcanizing machines 9 one by one, breaking the operation limitations of a single device, solving the defects of existing technologies that cannot be connected and coordinated, improving production efficiency and large-scale production capacity, meeting the needs of large-scale continuous production, and effectively enhancing the market competitiveness of enterprises.

[0133] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic tire ejection device for use with multiple solid tire vulcanizing machines operating in tandem, characterized in that, include: The walking mechanism (1) is configured to walk along a preset path; The base mechanism (2) is set on the walking mechanism (1) and is used to correspond one by one with the multiple vulcanizing machines (9) arranged on the preset path under the drive of the walking mechanism (1); the base mechanism (2) is provided with a mold locking station, a mold opening station and a tire ejection station; A push-pull mold mechanism (3) is provided on the base mechanism (2) for connecting the mold (8) in the vulcanizing machine (9) at the mold locking station and pulling the mold (8) out to the mold opening station and the tire exit station; The mold opening mechanism (4) is located at the mold opening station and is used for opening and closing the mold (8); The demolding mechanism (5) is located at the mold opening station and is used to eject the molded part from the mold (8) for demolding. The tire loading and unloading mechanism (6) is connected to the base mechanism (2) and is used for gripping and conveying the cooked tires and gripping and installing the green tires.

2. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem as described in claim 1, characterized in that, The walking mechanism (1) includes: Two ground rails (11) are laid along the preset path and arranged in parallel and alternately, and a first rack (14) is provided on the ground rails (11); The chassis (12) is supported on the ground rail (11). The two sides of the chassis (12) are rotatably connected to the first gear (15), which meshes with the first rack (14). The first driving component (13) is connected to the first gears (15) on both sides of the chassis (12) via a transmission shaft (16) and is used to drive the first gears (15) to rotate.

3. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem as described in claim 2, characterized in that, The drive shaft (16) includes: At least two shaft segments (160); A coupling (161) is used to connect two adjacent shaft segments (160); the coupling (161) includes two connecting bodies (162), which are respectively fixedly connected to the two shaft segments (160); At least one of the connecting bodies (162) is provided with a waist-shaped hole (163), and a plurality of waist-shaped holes (163) are arranged around the axis of the drive shaft (16). Two connecting bodies (162) are connected through the waist-shaped hole (163) and a connector that slides through the waist-shaped hole (163).

4. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to any one of claims 1 to 3, characterized in that, The base mechanism (2) includes: The base (21) is connected to the walking mechanism (1); A primary lifting device (22) is disposed between the base (21) and the walking mechanism (1) for driving the base (21) to lift.

5. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem as described in claim 4, characterized in that, The push-pull mold mechanism (3) includes: A workbench (31) is disposed on the base (21) and can slide between the mold opening station and the mold ejection station; The first push-pull device (32) is connected to the worktable (31) and can slide between the mold locking station and the mold opening station. It is used to connect the mold (8) and pull the mold (8) out to the worktable (31) and the mold opening station. The second push-pull device (33) is connected between the worktable (31) and the base (21) and is used to drive the worktable (31) to move between the mold opening station and the tire ejection station.

6. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem as described in claim 5, characterized in that, The first push-pull device (32) includes: The traction seat (321) is slidably connected to the worktable (31), and the side closer to the mold-locking station is the traction side; The traction arm (322) is hinged at one end to the traction seat (321) and extends out of the traction side to form a traction head (325). The traction head (325) can move closer to or further away from the worktable (31) as the traction arm (322) swings, so as to engage or disengage with the slot (80) on the mold (8). A first drive structure (323) is disposed between the traction arm (322) and the traction seat (321) for driving the traction arm (322) to swing. The second drive structure (324) is disposed between the traction seat (321) and the worktable (31) for driving the traction seat (321) to slide.

7. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem as described in claim 6, characterized in that, Two parallel guide rails (34) are arranged on the workbench (31), and a guide groove (341) is provided on the opposite side of the two guide rails (34). The two sides of the traction seat (321) are embedded in the guide groove (341). The bottom surface of the guide groove (341) is connected to a first guide wheel (342), the side surface is connected to a second guide wheel (343), and the side of the traction seat (321) is connected to a third guide wheel (344). The first guide wheel (342) rolls in contact with the bottom surface of the traction seat (321), the second guide wheel (343) rolls in contact with the side of the traction seat (321), and the third guide wheel (344) rolls in contact with the top surface of the guide groove (341).

8. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to any one of claims 1 to 3, characterized in that, It also includes a positioning mechanism (7), which comprises: The positioning seat (71) is fixedly connected to one of the base mechanism (2) and the vulcanizing machine (9); The positioning element (72) has a first end hinged to the positioning seat (71) and a second end that can swing close to or away from the positioning seat (71). The first link (73) is located near the second end of the positioning member (72); the first end of the first link (73) is hinged to the positioning seat (71); The second link (74) has its first end hinged to the second end of the first link (73) and its other end hinged to the positioning member (72); A positioning drive (75) is connected to the second link (74) and is used to drive the second link (74) to swing so as to engage or disengage with a mating part (76) on the other of the base mechanism (2) and the vulcanizing machine (9).

9. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem according to any one of claims 1 to 3, characterized in that, The mold opening mechanism (4) includes: The lifting platform (41) is capable of moving closer to or further away from the base mechanism (2); A secondary lifting device (42) is connected between the lifting platform (41) and the base mechanism (2) for driving the lifting platform (41) to lift. The mold opening lock (43) is connected to the side of the lifting platform (41) facing the base mechanism (2). The mold opening lock (43) has two states: locked and unlocked. In the locked state, the mold opening lock (43) is connected to the mold (8). In the unlocked state, the mold opening lock (43) is disengaged from the mold (8). A locking structure (44) is used to lock the lifting platform (41) at a preset height.

10. The automatic tire ejection device for use with multiple solid tire vulcanizing machines in tandem as described in claim 5, characterized in that, The demolding mechanism (5) includes: The first ejector (52) is connected to the base (21) and its ejector end corresponds to the position of the demolding hole on the worktable (31); The ejector seat (51) is fixedly connected to the ejector end of the first ejector (52); At least two hooks (53) are provided around the center of the ejector seat (51). The first end of the hook (53) is hinged to the ejector seat (51), and the second end protrudes from the upper surface of the ejector seat (51). The second ends of the multiple hooks (53) are bent in opposite directions into a hook shape. The second ejector (54) has its output end connected to the hook (53) and is used to drive the opening and closing of the multiple hooks (53).

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