A tire vulcanizing machine

Abstract

This invention provides a tire vulcanizing machine, which can improve the accuracy of operation, ensure the smoothness and synchronization of operation, and achieve safe production; it includes: a machine unit; an upper mold assembly and a lower mold assembly arranged opposite each other, respectively located at the upper and lower ends of the machine unit; a drive assembly, which is driven and connected to the upper mold assembly, and includes a servo drive motor and a flexible connector that is driven and connected to the servo drive motor; a fall arrestor assembly, fixed to the upper mold assembly, connected to the flexible connector, so that the fall arrestor assembly and the upper mold assembly can move up and down together under the drive of the drive assembly, and the fall arrestor assembly includes a fall arrestor plate; a locking member, fixed to the machine unit; and a tensioning member, connected to the fall arrestor plate, used to stretch and drive the fall arrestor plate from a vertical state to an inclined state when the flexible connector breaks, so that the fall arrestor plate abuts against the locking member to achieve locking.

Description

Technical Field

[0001] This invention relates to the field of vulcanizing rubber equipment technology, specifically a tire vulcanizing machine. Background Technology

[0002] As is well known, a vulcanizing machine is a tire vulcanizing equipment. In the mold opening and closing process of the vulcanizing machine, the vulcanizing mold is fixed on the crossbeam, and then the opening and closing action between the upper and lower molds is realized through the mold opening and closing drive mechanism. In the past mainstream structures of vulcanizing machines, the drive of the frame mold opening and closing system was mainly of two types. One is a motor-driven worm gear reducer, which drives the crank gear to rotate, thereby driving the connecting rod to drive the crossbeam to make lifting, flipping or translating movements. However, this type often has large driving parts and is limited by machining accuracy, so the accuracy of the action is often not high. The other is a hydraulic cylinder to drive the crossbeam to lift and lower. Although the accuracy is high, there is a risk of hydraulic oil leakage, and the smoothness and synchronization of the action are slightly flawed. At the same time, the speed has a limit. In addition, during the lifting and lowering of the crossbeam, if the cylinder connecting rod or crank connecting rod breaks, it will cause the crossbeam and the mold mounted on the crossbeam to fall, which poses a significant safety hazard. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a tire vulcanizing machine that can improve operational precision, ensure smooth and synchronized operation, and enable safe production.

[0004] This invention adopts the following technical solution: a tire vulcanizing machine, comprising:

[0005] unit;

[0006] The upper mold assembly and the lower mold assembly are respectively disposed at the upper end and the lower end of the unit;

[0007] A drive assembly is driven and connected to the upper mold assembly. The drive assembly includes a servo drive motor and a flexible connector that is driven and connected to the servo drive motor.

[0008] A fall arrestor assembly is fixed to the upper mold assembly and connected to the flexible connector so that the fall arrestor assembly and the upper mold assembly can move up and down together under the drive of the drive assembly. The fall arrestor assembly includes a fall arrestor plate.

[0009] A locking element is used to fix the unit.

[0010] A tension member, connected to the fall arrestor, is used to stretch and drive the fall arrestor from a vertical state to an inclined state when the flexible connector breaks, so that the fall arrestor abuts against the locking member to achieve locking.

[0011] Furthermore, the unit includes a base with columns at both ends and support legs at the bottom. A connecting beam connects the tops of the columns at both ends. The upper mold assembly includes an upper mold, a crossbeam, and a base. The upper mold is mounted on the bottom of the crossbeam, and the base is mounted on the crossbeam. The connecting beam has a clearance opening to accommodate the base's entry and exit. The lower mold assembly includes a lower mold mounted on the base.

[0012] Furthermore, the drive assembly also includes a reducer and a mounting base. The mounting base is mounted on the side of the base, and a main support is mounted on the mounting base. The drive shaft is rotatably connected to the main support. The servo drive motor is assembled and connected to the reducer and then fixed on the mounting base. The output end of the reducer passes through the mounting base and is connected to the drive shaft through a coupling. A drive wheel is mounted on the drive shaft. A cover is mounted on the side of the connecting beam corresponding to the position of the mounting base. A driven support is mounted on the cover. A driven wheel is mounted on the driven support through a driven shaft. The flexible connector connects the drive wheel and the driven wheel. Both the cover and the mounting base have openings for the flexible connector to pass through.

[0013] Furthermore, the flexible connector is made of chain, timing belt, or wire rope;

[0014] Furthermore, the tension member is a tension spring, and the fall arrestor assembly also includes a fall arrestor base. A spring support and a fall arrestor base are fixed on the fall arrestor base. One end of the tension member is connected to the spring support via a first headless pin. The upper and lower ends of the fall arrestor plate are respectively provided with a first protrusion and a second protrusion. The first protrusion and the second protrusion extend in two different directions. The other end of the tension member is connected to the first protrusion via a second headless pin. A connecting rod is fixedly connected to the bottom of the fall arrestor base. The starting end of the flexible connector is fixedly connected to the connecting rod. The ending end of the flexible connector is connected to the upper part of the fall arrestor plate via a third headless pin. The lower part of the fall arrestor plate is connected to the fall arrestor base via a rotating pin. When the flexible connector breaks, the tension member drives the fall arrestor plate to switch from a vertical state to an inclined state, so that the second protrusion abuts against the locking member.

[0015] Furthermore, an arc-shaped groove is provided on the outer periphery of the end of the rotating pin, and a shaft end baffle corresponding to the groove is fixedly installed on the anti-fall support; the shaft end baffle is partially engaged in the groove to limit the rotation of the rotating pin.

[0016] Furthermore, the locking member includes a locking plate mounted on the column, the locking plate being arranged along the vertical direction of the column, and the surface of the locking plate being provided with a plurality of locking grooves that abut against and lock with the second protrusion.

[0017] Furthermore, the tire vulcanizing machine also includes a guide assembly connected to the upper mold assembly. The guide assembly includes a guide plate and a guide frame. The guide plate is arranged vertically along the column. A guide groove is formed on the guide plate along its length. Guide seats are fixed at both the upper and lower ends of the guide frame. Guide supports are mounted on the guide seats. Guide wheels are mounted on the guide supports via a rotating shaft. The guide wheels are rolled within the guide groove. The guide frame is fixedly connected to the crossbeam by bolts. Auxiliary limiting wheels are mounted on the guide frames located on both sides of the guide plate. The auxiliary limiting wheels are in contact with the guide plate. A gap is left between the guide frame and the guide plate.

[0018] Furthermore, the fall arrestor is provided with a through hole, and the base at the corresponding position of the through hole is provided with a guide rod that passes through the through hole; the lower part of the guide rod is connected to the base by sequentially sleeved with an inner eccentric sleeve and an outer eccentric sleeve.

[0019] Furthermore, the tire vulcanizing machine also includes an extreme safety component, which includes a connecting seat and a safety cylinder. The connecting seat is fixed to the bottom of the fall arrestor, and the safety cylinder is fixed to the connecting seat via a first connecting rod. A pin is connected to the front end of the piston rod of the safety cylinder, and a corresponding insertion hole is provided on the column. The pin passes through the connecting seat and is inserted into the insertion hole.

[0020] Furthermore, the tire vulcanizing machine also includes a mold locking assembly for locking or unlocking the upper mold assembly; the mold locking assembly includes a mold locking screw and a mold locking sleeve disposed opposite to each other, the mold locking screw is mounted on the crossbeam, the bottom end of the mold locking screw is equipped with a tooth-shaped lock head, the mold locking sleeve is mounted on the base, and the mold locking sleeve has a lock groove corresponding to the lock head;

[0021] Furthermore, a contact rod is mounted on the mold-locking screw, and a detection seat is mounted on the base located on one side of the mold-locking sleeve. A limit switch capable of contacting the contact rod is mounted on the detection seat.

[0022] Furthermore, the lower part of the mold-locking sleeve passes through the base and is fixedly connected to the second connecting rod. The bottom surface of the base is equipped with a mold-locking cylinder. The front end of the piston rod of the mold-locking cylinder is connected to a third connecting rod through a shaft. The third connecting rod is fixedly connected to the transmission rod, and the second connecting rod is rotatably connected to the transmission rod.

[0023] The beneficial effects of this invention are that by using a servo drive motor and a flexible connector connected to it for driving, the action response and accuracy can be improved, making the upper mold assembly move up and down more smoothly, ensuring the smoothness and synchronization of the action. Furthermore, by using an anti-fall component, a locking component, and a tensioning component, when the flexible connector breaks, the tensioning component stretches and drives the anti-fall plate from a vertical state to an inclined state, so as to abut against the locking component, thereby locking the upper mold assembly onto the unit and avoiding the risk of falling. Production safety is ensured, thus having good application value. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 yes Figure 1 Enlarged structural diagram at point A in the diagram;

[0026] Figure 3 yes Figure 1 Enlarged structural diagram at point B in the diagram;

[0027] Figure 4 yes Figure 1 Enlarged structural diagram at point C;

[0028] Figure 5 This is a three-dimensional structural diagram of the rear view of the present invention;

[0029] Figure 6 This is a schematic diagram of the main structure of the present invention;

[0030] Figure 7 yes Figure 6 A magnified structural diagram at point D in the diagram;

[0031] Figure 8 yes Figure 6 Enlarged structural diagram at point E in the diagram;

[0032] Figure 9 This is a schematic diagram of a partial assembly structure of the fall protection component of the present invention under normal conditions;

[0033] Figure 10 This is a partial assembly structure diagram of the fall arrestor component of the present invention under the condition of flexible connector fracture.

[0034] Figure 11 This is an enlarged structural diagram of the fall protection component in this invention.

[0035] Figure 12 This is an enlarged structural diagram of the assembly of the fall arrestor and the ultimate safety component in this invention;

[0036] Figure 13This is a partially enlarged structural diagram of the mold-locking assembly in this invention;

[0037] Figure 14 This is a schematic diagram of the structure of the guide component in this invention. Detailed Implementation

[0038] like Figures 1-14 As shown, a tire vulcanizing machine of the present invention includes:

[0039] Unit 1;

[0040] The upper mold assembly 2 and the lower mold assembly 3 are respectively positioned at the upper and lower ends of the unit 1.

[0041] Drive component 4 is driven and connected to upper mold component 2. Drive component 4 includes servo drive motor 5 and flexible connector 6 that is driven and connected to servo drive motor 5.

[0042] The fall arrestor 7 is fixed on the upper mold assembly 2. The fall arrestor 7 is connected to the flexible connector 6 so that the fall arrestor 7 and the upper mold assembly 2 can move up and down together under the drive of the drive assembly 4. The fall arrestor 7 includes a fall arrestor plate 8.

[0043] The locking component 9 is fixed on the unit 1;

[0044] The tension member 10 is connected to the fall arrestor 8 and is used to stretch and drive the fall arrestor 8 from a vertical state to an inclined state when the flexible connector 6 breaks, so that the fall arrestor 8 abuts against the locking member 9 to achieve locking.

[0045] Unit 1 includes a base 11, with columns 12 at both ends of the base 11 and support legs 13 at the bottom of the base 11. A connecting beam 14 is connected between the tops of the columns 12 at both ends. Upper mold assembly 2 includes an upper mold 15, a crossbeam 16, and a base 17. The upper mold 15 is mounted on the bottom of the crossbeam 16, and the base 17 is mounted on the crossbeam 16. A clearance opening 18 is provided on the connecting beam 14 to accommodate the entry and exit of the base 17. Lower mold assembly 3 includes a lower mold 19, which is mounted on the base 11.

[0046] The drive assembly 4 also includes a reducer 20 and a mounting base 21. The mounting base 21 is mounted on the side of the base 11. A main support 22 is mounted on the mounting base 21. The drive shaft 23 is rotatably connected to the main support 22. The servo drive motor 5 is assembled and connected to the reducer 20 and then fixed on the mounting base 21. The output end of the reducer 20 passes through the mounting base 21 and is connected to the drive shaft 23 through a coupling 24. A drive wheel 25 is mounted on the drive shaft 23. A cover 26 is mounted on the side of the connecting beam 14 corresponding to the position of the mounting base 21. A driven support 27 is mounted on the cover 26. A driven wheel 29 is mounted on the driven support 27 through a driven shaft 28. A flexible connector 6 connects the drive wheel 25 and the driven wheel 29. Both the cover 26 and the mounting base 21 have openings 30 for accommodating the flexible connector 6.

[0047] The flexible connector 6 is made of chain, timing belt or wire rope; the chain used in the flexible connector 6 in this embodiment of the invention can also be a timing belt or wire rope or other usable flexible connector depending on the actual situation.

[0048] The tension member 10 is a tension spring. The fall arrestor assembly 7 also includes a fall arrestor seat 31, on which spring supports 32 and fall arrestor supports 33 are fixed. One end of the tension member 10 is connected to the spring supports 32 via a first headless pin 34. The upper and lower ends of the fall arrestor plate 8 are respectively provided with a first protrusion 35 and a second protrusion 36, which extend in two different directions. The other end of the tension member 10 is connected to the first protrusion 35 via a second headless pin 37. A connecting rod 38 is fixedly connected to the bottom of the fall arrestor seat 31. The starting end of the flexible connector 6 is fixedly connected to the connecting rod 38, and the ending end of the flexible connector 6 is connected to the upper part of the fall arrestor plate 8 via a third headless pin 39. The lower part of the fall arrestor plate 8 is connected to the fall arrestor support 33 via a rotating pin 40. When the flexible connector 6 breaks, the tension member 10 drives the fall arrestor plate 8 to switch from a vertical state to an inclined state, so that the second protrusion 36 abuts against the locking member 9. An arc-shaped groove 41 is provided on the outer periphery of the end of the rotating pin 40. A shaft end baffle 42 corresponding to the groove 41 is fixedly installed on the fall arrestor support 33. The shaft end baffle 42 is partially locked in the groove 41 to form a rotation limit on the rotating pin 40. The locking member 9 includes a locking plate 43 mounted on the column 12. The locking plate 43 is arranged in the vertical direction of the column 12. The surface of the locking plate 43 is provided with a plurality of locking grooves 44 that abut against the second protrusion 36.

[0049] The tire vulcanizing machine also includes a guide assembly 45 connected to the upper mold assembly 2. The guide assembly 45 includes a guide plate 46 and a guide frame 47. The guide plate 46 is set vertically along the column 12. A guide groove 48 is opened on the guide plate 46 along the length direction. Guide seats 49 are fixed at both the upper and lower ends of the guide frame 47. Guide supports 50 are mounted on the guide seats 49. Guide wheels 52 are mounted on the guide supports 50 through a rotating shaft 51. The guide wheels 52 are rolled in the guide groove 48. The guide frame 47 is fixedly connected to the crossbeam 16 by bolts (not shown in the figure). Auxiliary limiting wheels 53 are mounted on the guide frames 47 located on both sides of the guide plate 46. The auxiliary limiting wheels 53 are in contact with the guide plate 46. The upper mold assembly 2 can move up and down in the guide groove 48 through the guide wheels 52. That is to say, the upper mold assembly 2 can move vertically up and down along the column 12. It can also play a guiding and limiting role through the rolling contact between the auxiliary limiting wheels 53 and the guide plate 46. A gap is left between the guide frame 47 and the guide plate 46.

[0050] The fall arrestor 31 has a through hole 54, and the base 11 at the corresponding position of the through hole 54 has a guide rod 55 that passes through the through hole 54. The lower part of the guide rod 55 is connected to the base 11 by sequentially sleeved inner eccentric sleeve 56 and outer eccentric sleeve 57. After the upper mold assembly 2 descends to a certain distance, the through hole 54 on the fall arrestor 31 will pass through the guide rod 55, which can ensure the coaxial accuracy of the upper mold 15 and the lower mold 19 within the mold adjustment range of the tire vulcanizing machine and reduce machining redundancy.

[0051] The tire vulcanizing machine also includes an extreme safety component 58, which includes a connecting seat 59 and a safety cylinder 60. The connecting seat 59 is fixed to the bottom of the anti-fall seat 31, and the safety cylinder 60 is fixed to the connecting seat 59 through a first connecting rod 61. The piston rod of the safety cylinder 60 is connected to a pin 62 at its front end. The column 12 is provided with a hole 63 corresponding to the pin 62. The pin 62 passes through the connecting seat 59 and is inserted into the hole 63.

[0052] The tire vulcanizing machine also includes a mold locking assembly 64 for locking or unlocking the upper mold assembly 2; the mold locking assembly 64 includes a mold locking screw 65 and a mold locking sleeve 66 disposed opposite to each other, the mold locking screw 65 is mounted on the crossbeam 16, the bottom end of the mold locking screw 65 is equipped with a toothed locking head 67, the mold locking sleeve 66 is mounted on the base 11, and the mold locking sleeve 66 has a locking groove 68 corresponding to the locking head 67; the mold locking screw 65 is equipped with a contact rod 69 located on the mold locking sleeve. A detection seat 70 is mounted on the base 11 on one side of the 66. A limit switch 71 that can contact the contact rod 69 is mounted on the detection seat 70. The lower part of the mold-locking sleeve 66 passes through the base 11 and is fixedly connected to the second connecting rod 72. A mold-locking cylinder 73 is mounted on the bottom surface of the base 11. The front end of the piston rod of the mold-locking cylinder 73 is connected to the third connecting rod 74 through a shaft. The third connecting rod 74 is fixedly connected to the transmission rod 75. The second connecting rod 72 is rotatably connected to the transmission rod 75.

[0053] In this embodiment of the invention, there are four locking screws 65 and four locking sleeves 66. The four locking screws 65 are respectively installed at the four ends of the crossbeam 16, and the four locking sleeves 66 are respectively installed at the four ends of the base 11. There are two locking cylinders 73, and the locking sleeves 66 are in pairs. They are driven by the same locking cylinder 73 and transmission rod 75 to achieve linkage.

[0054] The tire vulcanizing machine can perform a single mold opening and closing process or a double mold opening and closing process. When a double mold opening and closing process is required, the same base 11 can be used, and the same structure can be set on the base 11 to realize the mold opening and closing process. In this embodiment of the invention, for the convenience of explaining the mold opening and closing process, the double mold opening and closing process is taken as an example. That is, there are two sets of left and right mold opening and closing processes, and the left and right movements are independent. This can realize the production of tires of different specifications and different cycles, which improves production efficiency. The figure shows the different working states of opening and closing between the upper mold assembly 2 and the lower mold assembly 3.

[0055] The specific working principle of this invention is as follows: Driven by the servo drive motor 5, when the lifting process stops, the servo drive motor 5 stops working and brakes, and the upper mold assembly 2 will stop in the middle position, which improves the action response and action accuracy, and improves the working stability and synchronization. That is, the servo drive motor 5 drives the reducer 20 to move, and through the coupling 24, it can drive the drive wheel 25 to rotate. Then, the anti-fall assembly 7 and the upper mold assembly 2, which are connected by the flexible connector 6 (a chain is used in this embodiment of the invention), will move up and down together along the vertical direction of the column 12, which also avoids the existing hydraulic oil leakage problem. During the up and down movement, the guide assembly 45 can be used to achieve smooth up and down movement, and the guide rod 55 can cooperate with the through hole 54 on the anti-fall seat 31 to further achieve guide limit, which plays a dual guiding role, making the up and down movement of the upper mold assembly 2 more stable.

[0056] Under normal circumstances, the tension of the flexible connector 6 on the fall arrestor plate 8 is greater than the tension of the tension spring, thus keeping the fall arrestor plate 8 in a vertical position and preventing the second protrusion 36 from accidentally abutting against the locking groove 44. If the flexible connector 6 breaks, the fall arrestor plate 8 will no longer be under the tension of the flexible connector 6. The tension of the tension spring will then cause the fall arrestor plate 8 to rotate and tilt, extending the second protrusion 36 until it abuts against the locking groove 44. In other words, if the flexible connector 6 breaks, the tension of the tension spring will cause the fall arrestor plate 8 to shift from a vertical position to a tilted position. When tilted, the second protrusion 36 can abut against the locking groove 44 on the locking plate 43 to lock, thus preventing the upper mold assembly 2 from falling and providing the first layer of fall protection. At the same time, the limit safety component 58, when the upper mold assembly 2 rises to the limit position or the set position, will extend the pin 62 through the action of the safety cylinder 60 until the pin 62 is inserted into the insertion hole 63 of the column 12, ensuring that the upper mold assembly 2 will not fall and providing the second layer of fall protection. It also provides a reliable safety guarantee for personnel to maintain the upper mold assembly 2 from below.

[0057] When the upper mold assembly 2 descends and closes with the lower mold assembly 3, the locking head 67 on the locking screw 65 locks into the locking groove 68. The limit switch 71 contacts the contact rod 69, indicating that the upper mold assembly 2 has descended to the correct position. Then, the locking cylinder 73 actuates, and through the cooperation of the second connecting rod 72, the transmission rod 75, and the third connecting rod 74, the locking sleeve 66 can be rotated to lock the locking head 67 into the locking groove 68, thus locking the upper mold assembly 2 and facilitating subsequent operations of the tire vulcanizing machine. When unlocking is required, the locking cylinder 73 actuates, rotating the locking sleeve 66 to unlock the locking head 67 from the locking groove 68, thus unlocking the upper mold assembly 2.

[0058] In summary, the tire vulcanizing machine of the present invention has higher operating precision and stronger stability, and is equipped with multiple safety safeguards, which can meet the needs of safe and efficient production.

[0059] It should be noted that, in order to clearly illustrate the structural connection relationships, the present invention therefore... Figure 9 , Figure 10 and Figure 12 These are all state diagrams with parts of the chain hidden.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0061] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A tire vulcanizing machine, comprising: a machine group; oppositely arranged upper and lower mold assemblies respectively arranged at the upper and lower ends of the machine group; a driving assembly drivingly connected with the upper mold assembly, characterized in that the driving assembly comprises a servo driving motor and a flexible connecting member drivingly connected with the servo driving motor; the tire vulcanizing machine further comprising: an anti-falling assembly fixed to the upper mold assembly, the anti-falling assembly being connected with the flexible connecting member to realize the upward and downward movement of the anti-falling assembly and the upper mold assembly driven by the driving assembly, the anti-falling assembly comprising an anti-falling plate; a clamping member fixed to the machine group; a stretching member connected with the anti-falling plate for stretching and driving the anti-falling plate from a vertical state to an inclined state when the flexible connecting member is broken, so that the anti-falling plate abuts against the clamping member to realize clamping; the machine group comprising a base, vertical columns arranged at the two ends of the base, supporting legs arranged at the bottom of the base, and a connecting beam connected between the top ends of the vertical columns; the upper mold assembly comprising an upper mold, a cross beam, and a machine seat, the upper mold being arranged at the bottom of the cross beam, the machine seat being arranged on the cross beam, and the connecting beam being provided with an avoiding opening capable of accommodating the machine seat; the lower mold assembly comprising a lower mold arranged on the base; the stretching member being a stretching spring, the anti-falling assembly further comprising an anti-falling seat, the anti-falling seat being fixed with a spring support and an anti-falling support, one end of the stretching member being connected to the spring support through a first headless pin shaft, the upper and lower ends of the anti-falling plate being respectively provided with a first protrusion and a second protrusion, the first and second protrusions respectively extending in two different directions, the other end of the stretching member being connected to the first protrusion through a second headless pin shaft, the anti-falling seat being fixedly connected with a connecting rod at the bottom, the starting end of the flexible connecting member being fixedly connected with the connecting rod, the terminal end of the flexible connecting member being connected with the upper part of the anti-falling plate through a third headless pin shaft, and the lower part of the anti-falling plate being connected with the anti-falling support through a rotating pin shaft, so that the anti-falling plate is switched from the vertical state to the inclined state through the stretching member when the flexible connecting member is broken, and the second protrusion abuts against the clamping member; the tire vulcanizing machine further comprising a limit safety assembly, the limit safety assembly comprising a connecting seat and a safety cylinder, the connecting seat being fixed to the bottom of the anti-falling seat, the safety cylinder being fixed to the connecting seat through a first connecting rod, the front end of the piston rod of the safety cylinder being connected with a latch, the vertical column being provided with a corresponding insertion hole for the latch, and the latch being inserted into the insertion hole after passing through the connecting seat. The tire vulcanizing machine further comprises a mold locking assembly for locking or unlocking the upper mold assembly; the mold locking assembly comprises oppositely arranged mold locking screws and a mold locking sleeve, the mold locking screws are arranged on the cross beam, the bottom ends of the mold locking screws are provided with tooth-shaped lock heads, the mold locking sleeve is arranged on the base, and the mold locking sleeve is provided with a lock groove corresponding to the lock head; a touch rod is arranged on the mold locking screw, a detection seat is arranged on the base on one side of the mold locking sleeve, and a travel switch capable of contacting the touch rod is arranged on the detection seat; the lower part of the mold locking sleeve penetrates through the base and is fixedly connected with a second connecting rod, a mold locking cylinder is arranged on the bottom surface of the base, the front end of the piston rod of the mold locking cylinder is connected with a third connecting rod through a shaft, the third connecting rod is fixedly connected with a transmission rod, and the second connecting rod is rotatably connected with the transmission rod; an arc-shaped clamping groove is formed in the outer periphery of the end of the rotating pin shaft, and an axle end baffle corresponding to the clamping groove is fixedly arranged on the anti-falling support; the axle end baffle is partially clamped in the clamping groove to limit the rotation of the rotating pin shaft; the clamping member comprises a clamping plate arranged on the stand column, the clamping plate is arranged in the vertical direction of the stand column, and a plurality of clamping grooves for abutting and clamping the second protrusions are arranged on the surface of the clamping plate at intervals; the tire vulcanizing machine further comprises a guide assembly connected with the upper mold assembly, the guide assembly comprises a guide plate and a guide frame, the guide plate is arranged in the vertical direction of the stand column, a guide groove is formed in the length direction of the guide plate, guide seats are fixedly arranged on the upper and lower ends of the guide frame, guide supports are arranged on the guide seats, guide wheels are arranged on the guide supports through rotating shafts, the guide wheels are rotatably arranged in the guide groove, the guide frame is fixedly connected with the cross beam through bolts, auxiliary limiting wheels are arranged on the guide frames on both sides of the guide plate, the auxiliary limiting wheels contact the guide plate, and a gap is formed between the guide frame and the guide plate; a through hole is formed in the anti-falling seat, a guide rod penetrating through the through hole is arranged on the base at a position corresponding to the through hole; the lower part of the guide rod is connected with the base by sequentially sleeving an inner eccentric sleeve and an outer eccentric sleeve; the driving assembly further comprises a speed reducer and a mounting seat, the mounting seat is arranged on the side end of the base, a main support is arranged on the mounting seat, a driving shaft is rotatably connected to the main support, the servo drive motor is fixedly arranged on the mounting seat after being assembled with the speed reducer, the output end of the speed reducer penetrates through the mounting seat and is connected with the driving shaft through a shaft coupling, a driving wheel is arranged on the driving shaft, a cover is arranged on the side end of the connecting beam corresponding to the position of the mounting seat, a slave support is arranged on the cover, a driven wheel is arranged on the slave support through a driven shaft, a flexible connecting member is connected between the driving wheel and the driven wheel, and through holes for accommodating the flexible connecting member are formed in the cover and the mounting seat; the flexible connecting member is a chain or a synchronous belt.

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