Tire die assembly pressurizing device

Abstract

The invention relates to the technical field of tire manufacturing, in particular to a tire mold closing and pressurizing device which comprises a vulcanizing machine, a support is fixedly assembled on the upper surface of the vulcanizing machine, a guide column penetrates through the support in a sliding mode, an upper mold is fixedly assembled at the lower end of the guide column, and a lower mold is fixedly assembled at the position, opposite to the upper mold, of the vulcanizing machine. The pressurizing structure is arranged on the upper surface of the vulcanizing machine and is used for preventing a gap between the upper mold and the lower mold; the pressurizing structure comprises a plurality of fixing plates fixedly mounted on the upper surface of the vulcanizing machine, and a plurality of limiting frames and limiting blocks which are matched with one another to limit the positions of the upper mold and the lower mold. According to the tire machining device, by arranging the pressurizing structure, after the upper mold and the lower mold are closed, the limiting frame achieves the effects of limiting the position of the limiting block, limiting the position of the upper mold and preventing the upper mold from moving upwards to generate a gap, and then a tire can be normally machined.

Description

Technical Field

[0001] The invention relates to the technical field of tire manufacturing, and in particular to a tire mold clamping and pressurizing device. Background Art

[0002] The tire vulcanizer is the core equipment in tire manufacturing. It uses high temperature and high pressure to make the rubber in the tire embryo undergo a vulcanization reaction. It is an indispensable equipment in the tire manufacturing process. Among them, there is a hydraulic tire vulcanizer that uses multiple clamping cylinders for clamping and pressurizing.

[0003] When a tire vulcanizer is used in the prior art, a tire blank is placed in a mold, and the mold is locked and pressurized with the help of multiple locking cylinders to allow the rubber molecules to cross-link and form, giving the tire good physical properties and appearance. When the tire is formed, the mold is opened and the tire is taken out.

[0004] The above-mentioned and prior art technologies have the following defects: when using multiple clamping cylinders to clamp the upper mold and the lower mold of the tire vulcanizer, when the cylinder and the piping system of the clamping cylinder leak, the upper mold and the lower mold will open due to excessive internal pressure, which will have an adverse effect on the quality of the tire.

[0005] Therefore, a tire mold clamping and pressurizing device is proposed. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the above-mentioned background technology and to propose a tire mold clamping and pressurizing device.

[0007] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a tire mold clamping and pressurizing device, comprising a vulcanizer, a bracket is fixedly mounted on the upper surface of the vulcanizer, a guide column is slidably penetrated in the bracket, an upper mold is fixedly mounted on the lower end of the guide column, and a lower mold is fixedly mounted on the position of the vulcanizer relative to the upper mold, and further comprising:

[0008] A pressurizing structure is arranged on the upper surface of the vulcanizer to prevent a gap between the upper mold and the lower mold, and the pressurizing structure includes a plurality of fixed plates fixedly installed on the upper surface of the vulcanizer, a plurality of limit frames and limit blocks that cooperate with each other to limit the positions of the upper mold and the lower mold, a transmission plate and a transmission rod that cooperate with each other to drive the limit frame to move, and a gear ring and a gear for driving the transmission plate to move;

[0009] A cleaning structure is arranged at a position of the vulcanizer relative to the gear ring and the gear, and is used to clean the tooth surfaces of the gear ring and the gear. The cleaning structure includes a support rod fixedly mounted on the upper surface of the vulcanizer, and a plurality of brushes for cleaning the tooth surfaces of the gear ring and the gear;

[0010] A negative pressure structure is arranged on the upper surface of the vulcanizer to increase the clamping pressure of the upper mold and the lower mold. The negative pressure structure includes a sealing frame fixedly installed on the upper surface of the vulcanizer and a piston plate for compressed air. An annular groove is opened on the upper surface of the lower mold.

[0011] The effects achieved by the above components are as follows: by setting a pressurized structure, when the upper mold and the lower mold are closed, the limit frame reaches the limit block position, thereby limiting the position of the upper mold and preventing the upper mold from moving up and generating a gap, so that the tire can be processed normally; by setting a cleaning structure, during the rotation of the gear ring and the gear, the brush wire will clean the tooth surface of the gear ring and the gear, and clean the foreign matter attached to the tooth surface of the gear ring and the gear to prevent the foreign matter from hindering the normal rotation of the gear ring and the gear; by setting a negative pressure structure, when processing the tire, as the gear ring continues to rotate, the air in the annular groove will gradually be drawn away, so the air pressure in the annular groove will drop to form a negative pressure environment, thereby further improving the tightness of the connection between the upper mold and the lower mold.

[0012] Preferably, the limit frame is slidably connected to the fixed plate, the outer circumferential surface of the upper mold is fixedly equipped with an L-shaped plate, the limit block is fixedly equipped at the lower end of the L-shaped plate, the lower surface of the limit block is provided with an inclined surface, the side wall of the limit block is provided with a limit groove matched with the limit frame, the outer wall of the limit frame is fixedly equipped with a leaf spring, one end of the leaf spring is fixedly connected to the fixed plate, the upper surface of the vulcanizer is fixedly equipped with a plurality of guide plates, the gear ring is sleeved on the surface of the guide plate, the transmission plate is fixedly equipped on the inner circumferential surface of the gear ring, the transmission rod is fixedly equipped on the upper surface of the limit frame, the lower surface of the transmission plate is provided with a makeshift groove matched with the transmission rod, the upper surface of the vulcanizer is fixedly equipped with a servo motor, and the gear is coaxially fixedly equipped on the output end of the servo motor.

[0013] The effect achieved by the above components is: the L-shaped plate will drive the limit block to move as the upper mold moves. After the limit block moves a certain distance, it will contact the limit frame. At this time, the inclined surface of the limit block will squeeze the limit frame. The limit frame will slide along the surface of the fixed plate and compress the leaf spring. After the limit frame is aligned with the limit groove, the leaf spring will stretch with the help of its own elastic force, and the limit frame will be inserted into the limit groove with the help of the elastic force of the leaf spring. The limit frame reaches the position of the limit block, thereby limiting the position of the upper mold and preventing the upper mold from moving up and generating a gap.

[0014] Preferably, a protective plate is fixedly mounted on the upper surface of the vulcanizer.

[0015] The effect achieved by the above components is that the protective plate can prevent the staff standing on the side of the vulcanizer from being injured by the gear ring.

[0016] Preferably, a support plate is fixedly mounted on the vulcanizer relative to the gear ring, an electric push rod is fixedly mounted inside the support plate, and a brake plate is fixedly mounted on the output end of the electric push rod.

[0017] The effect achieved by the above components is: the output end of the electric push rod is controlled to extend, the brake plate will be against the tooth surface of the gear ring, and the brake plate reaches the limit position of the gear ring, thereby ensuring the tightness of the connection between the upper mold and the lower mold.

[0018] Preferably, a round rod is horizontally slidably penetrated in the support plate, and the round rod is fixedly connected to the brake plate.

[0019] The effect achieved by the above components is that the movement of the brake plate will drive the round rod to slide, and the round rod can limit the moving path of the brake plate.

[0020] Preferably, the upper end of the support rod is snap-connected with a card frame, the brush wires are fixedly mounted on the surface of the card frame, and a plurality of brush wires are equally divided into two groups, and the two groups of brush wires respectively abut against the tooth surfaces of the gear ring and the gear.

[0021] The effect achieved by the above components is: during the rotation of the gear ring and the gear, the brush wire will clean the tooth surface of the gear ring and the gear, and clean the foreign matter attached to the tooth surface of the gear ring and the gear to prevent the foreign matter from hindering the normal rotation of the gear ring and the gear.

[0022] Preferably, an insertion rod is slidably penetrated in the card frame, the insertion rod penetrates the support rod, one end of the insertion rod is fixedly equipped with a magnetic block, and the card frame is made of iron.

[0023] The effect achieved by the above components is: when the brush wire needs to be replaced, the insertion rod is pulled out with the help of the magnetic block, and then the card frame is removed, and then the card frame with new brush wire is put on the support rod, and then the magnetic block is moved to move the insertion rod through the card frame and the support rod. The insertion rod reaches the function of limiting the position of the card frame, and the magnetic block will be attracted to the surface of the card frame with its own magnetic force to prevent the insertion rod from falling out of the card frame.

[0024] Preferably, the upper surface of the sealing frame is fixedly connected with an air duct, the annular groove is connected with the air duct, the piston plate is slidably connected with the inner wall of the sealing frame, the surface of the piston plate is fixedly equipped with a connecting plate, the connecting plate passes through the sealing frame and abuts against the tooth surface of the gear ring, the surface of the piston plate is fixedly equipped with a spring, one end of the spring is fixedly connected to the sealing frame, the side wall of the sealing frame is fixedly connected with an extension pipe, the inner circumferential surface of the air duct is fixedly equipped with a first one-way valve, the inner circumferential surface of the extension pipe is fixedly equipped with a second one-way valve, and the outer circumferential surface of the air duct is fixedly connected with an electromagnetic exhaust valve.

[0025] The effects achieved by the above components are as follows: during the rotation of the gear ring, the tooth surface of the gear ring will squeeze the connecting plate, and the connecting plate will drive the piston plate to slide along the inner wall of the sealing frame in a direction away from the lower mold. The sliding of the piston plate will stretch the spring. During this process, the electromagnetic exhaust valve is kept closed, and at the same time, the first one-way valve is opened and the second one-way valve is closed. Therefore, the air in the annular groove will enter the sealing frame through the air guide pipe. When the gear ring rotates a certain angle, the spring contracts. At this time, the first one-way valve is closed and the second one-way valve is opened, and the piston plate will press the air in the sealing frame into the extension tube. Therefore, as the gear ring continues to rotate, the air in the annular groove will gradually be drawn away, so the air pressure in the annular groove will drop to form a negative pressure environment, thereby further improving the tightness of the connection between the upper mold and the lower mold.

[0026] Preferably, a sealing ring is fixedly mounted on the lower surface of the lower mold, the sealing ring is made of rubber, and the size of the sealing ring is larger than the size of the annular groove.

[0027] The effects achieved by the above components are: the rubber sealing ring can improve the sealing between the upper mold and the lower mold, and can also reduce the collision force when the upper mold and the lower mold are closed.

[0028] Preferably, one end of the extension tube is fixedly connected to a nozzle, and the nozzle is located above the brush filaments.

[0029] The effect achieved by the above components is that after the air in the extension tube is discharged through the nozzle, the flowing air will further clean the foreign matter attached to the tooth surfaces of the gear ring and the gear.

[0030] Compared with the prior art, the advantages and positive effects of the present invention are:

[0031] 1. In the present invention, by providing a pressurizing structure, when the upper mold and the lower mold are closed, the limit frame reaches the limit block position, thereby limiting the position of the upper mold and preventing the upper mold from moving up to generate a gap, so that the tire can be processed normally.

[0032] 2. In the present invention, by providing a cleaning structure, during the rotation of the gear ring and the gear, the brush wire will clean the tooth surface of the gear ring and the gear, and clean the foreign matter attached to the tooth surface of the gear ring and the gear, so as to prevent the foreign matter from hindering the normal rotation of the gear ring and the gear.

[0033] 3. In the present invention, by providing a negative pressure structure, when processing the tire, as the gear ring continues to rotate, the air in the annular groove will gradually be drawn out, so the air pressure in the annular groove will drop to form a negative pressure environment, thereby further improving the tightness of the connection between the upper mold and the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the local structure of the vulcanizing machine of the present invention;

[0036] Figure 3 It is a structural schematic diagram of the lower mold and the gear ring of the present invention;

[0037] Figure 4 It is a structural schematic diagram of the L-shaped plate of the present invention;

[0038] Figure 5 It is a structural schematic diagram of the fixing plate of the present invention;

[0039] Figure 6 It is a schematic diagram of the local structure of the bracket of the present invention;

[0040] Figure 7 It is a schematic diagram of the local structure of the gear ring of the present invention;

[0041] Figure 8 It is a schematic diagram of the partial cross-section split structure of the sealing frame of the present invention;

[0042] Fig. 9 It is a schematic diagram of the split structure at the support rod of the present invention.

[0043] Legend: 1. Vulcanizer; 2. Bracket; 3. Hydraulic cylinder; 4. Upper mold; 5. Lower mold; 6. Guide column; 7. Fixed plate; 8. Limit frame; 9. Leaf spring; 10. L-shaped plate; 11. Limit block; 12. Limit groove; 13. Guide plate; 14. Gear ring; 15. Transmission plate; 16. Transmission rod; 17. Make way groove; 18. Servo motor; 19. Gear; 20. Protective plate; 21. Support plate ; 22. Electric push rod; 23. Brake plate; 24. Round rod; 25. Sealing frame; 26. Air guide tube; 27. Annular groove; 28. Piston plate; 29. ​​Connecting plate; 30. Extension pipe; 31. First one-way valve; 32. Second one-way valve; 33. Solenoid exhaust valve; 34. Spring; 35. Nozzle; 36. Sealing ring; 37. Support rod; 38. Card frame; 39. Brush wire; 40. Insert rod; 41. Magnetic block. DETAILED DESCRIPTION

[0044] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0045] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0046] like Figure 1-Figure 9 As shown, the present invention provides a tire mold clamping and pressurizing device, including a vulcanizer 1, a bracket 2 is fixedly mounted on the upper surface of the vulcanizer 1, a guide column 6 is slidably penetrated in the bracket 2, an upper mold 4 is fixedly mounted on the lower end of the guide column 6, a lower mold 5 is fixedly mounted on the position of the vulcanizer 1 relative to the upper mold 4, a hydraulic cylinder 3 is fixedly mounted on the surface of the bracket 2, and the output end of the hydraulic cylinder 3 is fixedly connected to the upper mold 4, and also includes:

[0047] A pressurizing structure is arranged on the upper surface of the vulcanizer 1 to prevent a gap between the upper mold 4 and the lower mold 5. The pressurizing structure includes a plurality of fixing plates 7 fixedly installed on the upper surface of the vulcanizer 1, a plurality of limit frames 8 and limit blocks 11 that cooperate with each other to limit the positions of the upper mold 4 and the lower mold 5, a transmission plate 15 and a transmission rod 16 that cooperate with each other to drive the limit frame 8 to move, and a gear ring 14 and a gear 19 that are used to drive the transmission plate 15 to move;

[0048] A cleaning structure is arranged at a position of the vulcanizer 1 relative to the gear ring 14 and the gear 19, and is used to clean the tooth surfaces of the gear ring 14 and the gear 19. The cleaning structure includes a support rod 37 fixedly mounted on the upper surface of the vulcanizer 1, and a plurality of brush wires 39 for cleaning the tooth surfaces of the gear ring 14 and the gear 19;

[0049] A negative pressure structure is arranged on the upper surface of the vulcanizer 1 to increase the clamping pressure of the upper mold 4 and the lower mold 5. The negative pressure structure includes a sealing frame 25 fixedly mounted on the upper surface of the vulcanizer 1, a piston plate 28 for compressed air, and an annular groove 27 is opened on the upper surface of the lower mold 5.

[0050] like Figure 2-Figure 7As shown, the limit frame 8 is slidably connected with the fixed plate 7, the outer circumferential surface of the upper mold 4 is fixedly equipped with an L-shaped plate 10, the limit block 11 is fixedly equipped at the lower end of the L-shaped plate 10, the lower surface of the limit block 11 is provided with an inclined surface, and the side wall of the limit block 11 is provided with a limit groove 12 adapted to the limit frame 8, the outer wall of the limit frame 8 is fixedly equipped with a leaf spring 9, one end of the leaf spring 9 is fixedly connected to the fixed plate 7, the upper surface of the vulcanizer 1 is fixedly equipped with several guide plates 13, the gear ring 14 is sleeved on the surface of the guide plate 13, the transmission plate 15 is fixedly equipped on the inner circumferential surface of the gear ring 14, the transmission rod 16 is fixedly equipped on the upper surface of the limit frame 8, and the lower surface of the transmission plate 15 is provided with a groove adapted to the transmission rod 16. The upper surface of the vulcanizer 1 is fixedly equipped with a servo motor 18, and the gear 19 is coaxially fixedly assembled at the output end of the servo motor 18. The L-shaped plate 10 moves with the upper mold 4 and drives the limit block 11 to move. After the limit block 11 moves a certain distance, it will contact the limit frame 8. At this time, the inclined surface of the limit block 11 will squeeze the limit frame 8, and the limit frame 8 will slide along the surface of the fixed plate 7 and compress the leaf spring 9. After the limit frame 8 is aligned with the limit groove 12, the leaf spring 9 will stretch with the help of its own elastic force, and the limit frame 8 will be inserted into the limit groove 12 with the help of the elastic force of the leaf spring 9. The limit frame 8 reaches the position of the limit block 11, thereby limiting the position of the upper mold 4 and preventing the upper mold 4 from moving up and generating a gap.

[0051] A protective plate 20 is fixedly installed on the upper surface of the vulcanizer 1. The protective plate 20 can prevent the staff standing on the side of the vulcanizer 1 from being injured by the gear ring 14. A support plate 21 is fixedly installed at the position of the vulcanizer 1 relative to the gear ring 14. An electric push rod 22 is fixedly installed in the support plate 21. A brake plate 23 is fixedly installed at the output end of the electric push rod 22. The output end of the electric push rod 22 is controlled to extend, and the brake plate 23 will abut against the tooth surface of the gear ring 14. The brake plate 23 reaches the function of limiting the position of the gear ring 14, thereby ensuring the tightness of the connection between the upper mold 4 and the lower mold 5. A round rod 24 is horizontally slidably penetrated in the support plate 21. The round rod 24 is fixedly connected to the brake plate 23. The movement of the brake plate 23 will drive the round rod 24 to slide, and the round rod 24 reaches the function of limiting the moving path of the brake plate 23.

[0052] like Figure 3 and Fig. 9As shown, the upper end of the support rod 37 is connected with a card frame 38, and a brush wire 39 is fixedly installed on the surface of the card frame 38. A plurality of brush wires 39 are equally divided into two groups, and the two groups of brush wires 39 are respectively against the tooth surfaces of the gear ring 14 and the gear 19. During the rotation of the gear ring 14 and the gear 19, the brush wire 39 will clean the tooth surfaces of the gear ring 14 and the gear 19, and clean the foreign matter attached to the tooth surfaces of the gear ring 14 and the gear 19 to prevent the foreign matter from hindering the normal rotation of the gear ring 14 and the gear 19. An insertion rod 40 is slidably penetrated in the card frame 38, and the insertion rod 40 penetrates The support rod 37 is passed through, and one end of the insertion rod 40 is fixedly equipped with a magnetic block 41, and the card frame 38 is made of iron. When the brush filament 39 needs to be replaced, the insertion rod 40 is pulled out with the help of the magnetic block 41, and then the card frame 38 is removed, and then the card frame 38 with new brush filaments 39 is put on the support rod 37, and then the magnetic block 41 is moved to move the insertion rod 40 through the card frame 38 and the support rod 37. The insertion rod 40 reaches the function of limiting the position of the card frame 38, and the magnetic block 41 will be attracted to the surface of the card frame 38 by its own magnetic force to prevent the insertion rod 40 from escaping from the card frame 38.

[0053] like Figure 3 and Figure 6 as well as Figure 8As shown, the upper surface of the sealing frame 25 is fixedly connected with an air guide pipe 26, the annular groove 27 is connected with the air guide pipe 26, the piston plate 28 is slidably connected with the inner wall of the sealing frame 25, the surface of the piston plate 28 is fixedly equipped with a connecting plate 29, the connecting plate 29 passes through the sealing frame 25 and abuts against the tooth surface of the gear ring 14, the surface of the piston plate 28 is fixedly equipped with a spring 34, one end of the spring 34 is fixedly connected with the sealing frame 25, the side wall of the sealing frame 25 is fixedly connected with an extension pipe 30, and the inner circumferential surface of the air guide pipe 26 is fixedly equipped with a first one-way valve 31, the inner circumferential surface of the extension tube 30 is fixedly equipped with a second one-way valve 32, and the outer circumferential surface of the air guide tube 26 is fixedly connected with an electromagnetic exhaust valve 33. During the rotation of the gear ring 14, the tooth surface of the gear ring 14 will squeeze the connecting plate 29, and the connecting plate 29 will drive the piston plate 28 to slide away from the lower mold 5 along the inner wall of the sealing frame 25. The sliding of the piston plate 28 will stretch the spring 34. In this process, the electromagnetic exhaust valve 33 is kept closed, and the first one-way valve 31 is opened, and the second one-way valve 32 is closed, so that the annular groove 27 is The air will enter the sealing frame 25 through the air guide tube 26. When the gear ring 14 rotates a certain angle, the spring 34 contracts, and the first one-way valve 31 is closed and the second one-way valve 32 is opened. The piston plate 28 will press the air in the sealing frame 25 into the extension tube 30. Therefore, as the gear ring 14 continues to rotate, the air in the annular groove 27 will be gradually drawn away, so the air pressure in the annular groove 27 will drop to form a negative pressure environment, thereby further improving the connection tightness between the upper mold 4 and the lower mold 5. The lower surface of the lower mold 5 is fixedly equipped with a sealing Ring 36, the sealing ring 36 is made of rubber, the size of the sealing ring 36 is larger than the size of the annular groove 27, the rubber sealing ring 36 can improve the sealing between the upper mold 4 and the lower mold 5, and can also reduce the collision force when the upper mold 4 and the lower mold 5 are closed. One end of the extension tube 30 is fixedly connected to a nozzle 35, and the nozzle 35 is located above the brush 39. After the air in the extension tube 30 is discharged through the nozzle 35, the flowing air will further clean the foreign matter attached to the tooth surface of the gear ring 14 and the gear 19.

[0054] The overall working principle is that when processing the tire, the tire is placed in the lower mold 5, and then the output end of the hydraulic cylinder 3 is controlled to extend, the upper mold 4 will move downward, and the L-shaped plate 10 will follow the movement of the upper mold 4 to drive the limit block 11 to move. After the limit block 11 moves a certain distance, it will contact the limit frame 8. At this time, the inclined surface of the limit block 11 will squeeze the limit frame 8, and the limit frame 8 will slide along the surface of the fixed plate 7 and compress the leaf spring 9. The movement of the upper mold 4 will cause the sealing ring 36 to rest against the surface of the lower mold 5. At this time, the limit frame 8 will be aligned with the limit groove 12, and the leaf spring 9 will extend with the help of its own elastic force. The limit frame 8 will be inserted into the limit groove 12 with the help of the elastic force of the leaf spring 9, and the limit frame 8 reaches the limit position of the limit block 11 , thereby limiting the position of the upper mold 4 and preventing the upper mold 4 from moving up and generating a gap. Then, the servo motor 18 is turned on. The rotation of the output end of the servo motor 18 will drive the gear 19 to rotate. The gear 19 will drive the gear ring 14 to slide along the surface of the guide plate 13. The gear ring 14 will drive the transmission plate 15 to move. The transmission plate 15 moves to squeeze the transmission rod 16. The transmission rod 16 will drive the limit frame 8 to slide along the inner wall of the limit groove 12 toward the upper mold 4 until the transmission plate 15 is out of contact with the transmission rod 16. Therefore, in this process, the transmission plate 15 and the transmission rod 16 will not hinder the continuous rotation of the gear ring 14. During the rotation of the gear ring 14, the tooth surface of the gear ring 14 will squeeze the connecting plate 29. The connecting plate 29 The piston plate 28 will slide along the inner wall of the sealing frame 25 in a direction away from the lower mold 5. The sliding of the piston plate 28 will stretch the spring 34. During this process, the electromagnetic exhaust valve 33 is kept closed, and the first one-way valve 31 is opened and the second one-way valve 32 is closed. Therefore, the air in the annular groove 27 will enter the sealing frame 25 through the air guide pipe 26. When the gear ring 14 rotates a certain angle, the spring 34 contracts. At this time, the first one-way valve 31 is closed and the second one-way valve 32 is opened. The piston plate 28 will press the air in the sealing frame 25 into the extension tube 30. Therefore, as the gear ring 14 continues to rotate, the air in the annular groove 27 will gradually be drawn away. Therefore, the air pressure in the annular groove 27 will drop to form a negative pressure environment, and then The tightness of the connection between the upper mold 4 and the lower mold 5 is further improved. At the same time, the rubber sealing ring 36 can improve the sealing between the upper mold 4 and the lower mold 5. When the air pressure in the annular groove 27 reaches an appropriate level, the output end of the electric push rod 22 is controlled to extend, and the brake plate 23 will rest against the tooth surface of the gear ring 14. The brake plate 23 reaches the position of limiting the gear ring 14, thereby ensuring the tightness of the connection between the upper mold 4 and the lower mold 5. The movement of the brake plate 23 will drive the round rod 24 to slide, and the round rod 24 reaches the function of limiting the moving path of the brake plate 23. After that, the tire can be processed with the help of the vulcanizer 1. The protective plate 20 can prevent the staff standing on the side of the vulcanizer 1 from being injured by the gear ring 14.

[0055] After the tire processing is completed, the output end of the electric push rod 22 is controlled to contract, so that the brake plate 23 is out of contact with the gear ring 14, and the electromagnetic exhaust valve 33 is opened. The air will pass through the electromagnetic exhaust valve 33 into the air duct 26 and flow into the annular groove 27, and then the output end of the servo motor 18 is controlled to rotate in the opposite direction. At this time, the gear ring 14 will rotate in the opposite direction. When the transmission plate 15 contacts the transmission rod 16, the transmission plate 15 will squeeze the transmission rod 16, and the transmission rod 16 will drive the limit frame 8 to move away from the upper mold 4. When the limit frame 8 slides out of the inner wall of the limit groove 12, the output end of the electric push rod 22 is controlled to extend again, so that the brake plate 23 is pressed against the tooth surface of the gear ring 14 to limit the gear ring 14 and turn off the servo motor 18. After that, the upper mold 4 can be driven by the hydraulic cylinder 3 to move upward for mold opening.

[0056] During the rotation of the gear ring 14 and the gear 19, the brush 39 will clean the tooth surfaces of the gear ring 14 and the gear 19, and clean the foreign matter attached to the tooth surfaces of the gear ring 14 and the gear 19 to prevent the foreign matter from interfering with the normal rotation of the gear ring 14 and the gear 19. At the same time, the air in the extension tube 30 will be discharged through the nozzle 35, and the flowing air will further clean the foreign matter attached to the tooth surfaces of the gear ring 14 and the gear 19. When it is necessary to replace the brush 39, the insertion rod 40 is pulled out with the help of the magnetic block 41, and then the card frame 38 is removed, and then the card frame 38 with the new brush 39 is put on the support rod 37, and then the magnetic block 41 is moved to move the insertion rod 40 through the card frame 38 and the support rod 37. The insertion rod 40 reaches the function of limiting the position of the card frame 38, and the magnetic block 41 will be attracted to the surface of the card frame 38 with its own magnetic force to prevent the insertion rod 40 from escaping from the card frame 38.

[0057] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A tire mold clamping and pressurizing device, comprising a vulcanizing machine (1), characterized in that: The upper surface of the vulcanizer (1) is fixedly equipped with a bracket (2), a guide column (6) is slidably penetrated in the bracket (2), an upper mold (4) is fixedly equipped at the lower end of the guide column (6), and the vulcanizer (1) is fixedly equipped with a lower mold (5) at a position relative to the upper mold (4), and further comprises: A pressurizing structure is arranged on the upper surface of the vulcanizer (1) and is used to prevent a gap from appearing between the upper mold (4) and the lower mold (5), the pressurizing structure comprising a plurality of fixing plates (7) fixedly mounted on the upper surface of the vulcanizer (1), a plurality of limit frames (8) and limit blocks (11) that cooperate with each other to limit the positions of the upper mold (4) and the lower mold (5), a transmission plate (15) and a transmission rod (16) that cooperate with each other to drive the limit frame (8) to move, and a gear ring (14) and a gear (19) used to drive the transmission plate (15) to move; A cleaning structure is arranged at a position of the vulcanizer (1) relative to the gear ring (14) and the gear (19) and is used to clean the tooth surfaces of the gear ring (14) and the gear (19), the cleaning structure comprising a support rod (37) fixedly mounted on the upper surface of the vulcanizer (1) and a plurality of brush wires (39) for cleaning the tooth surfaces of the gear ring (14) and the gear (19); A negative pressure structure is arranged on the upper surface of the vulcanizer (1) and is used to increase the clamping pressure of the upper mold (4) and the lower mold (5). The negative pressure structure includes a sealing frame (25) fixedly mounted on the upper surface of the vulcanizer (1) and a piston plate (28) for compressing air. The upper surface of the lower mold (5) is provided with an annular groove (27).

2. A tire mold clamping and pressurizing device according to claim 1, characterized in that: The limit frame (8) is slidably connected to the fixed plate (7); the outer circumferential surface of the upper mold (4) is fixedly equipped with an L-shaped plate (10); the limit block (11) is fixedly equipped at the lower end of the L-shaped plate (10); the lower surface of the limit block (11) is provided with an inclined surface; the side wall of the limit block (11) is provided with a limit groove (12) adapted to the limit frame (8); the outer wall of the limit frame (8) is fixedly equipped with a leaf spring (9); one end of the leaf spring (9) is fixedly connected to the fixed plate (7); the upper surface of the vulcanizer (1) is provided with an inclined surface; A plurality of guide plates (13) are fixedly mounted on the surface of the vulcanizer (1), the gear ring (14) is sleeved on the surface of the guide plate (13), the transmission plate (15) is fixedly mounted on the inner circumferential surface of the gear ring (14), the transmission rod (16) is fixedly mounted on the upper surface of the limit frame (8), the lower surface of the transmission plate (15) is provided with a clearance groove (17) matched with the transmission rod (16), the upper surface of the vulcanizer (1) is fixedly mounted with a servo motor (18), and the gear (19) is coaxially fixedly mounted on the output end of the servo motor (18).

3. A tire mold clamping and pressurizing device according to claim 2, characterized in that: A protective plate (20) is fixedly mounted on the upper surface of the vulcanizer (1).

4. A tire mold clamping and pressurizing device according to claim 2, characterized in that: The vulcanizer (1) is fixedly equipped with a support plate (21) at a position relative to the gear ring (14), an electric push rod (22) is fixedly equipped inside the support plate (21), and a brake plate (23) is fixedly equipped at the output end of the electric push rod (22).

5. A tire mold clamping and pressurizing device according to claim 4, characterized in that: A round rod (24) is horizontally slidably penetrated in the support plate (21), and the round rod (24) is fixedly connected to the brake plate (23).

6. A tire mold clamping and pressurizing device according to claim 1, characterized in that: The upper end of the support rod (37) is snap-connected with a card frame (38), and the brush wires (39) are fixedly mounted on the surface of the card frame (38). A plurality of brush wires (39) are equally divided into two groups, and the two groups of brush wires (39) are respectively pressed against the tooth surfaces of the gear ring (14) and the gear (19).

7. A tire mold clamping and pressurizing device according to claim 6, characterized in that: An insertion rod (40) is slidably inserted into the card frame (38), the insertion rod (40) penetrates the support rod (37), one end of the insertion rod (40) is fixedly equipped with a magnetic block (41), and the card frame (38) is made of iron.

8. A tire mold clamping and pressurizing device according to claim 6, characterized in that: The upper surface of the sealing frame (25) is fixedly connected with an air guide pipe (26), the annular groove (27) is connected with the air guide pipe (26), the piston plate (28) is slidably connected with the inner wall of the sealing frame (25), the surface of the piston plate (28) is fixedly equipped with a connecting plate (29), the connecting plate (29) passes through the sealing frame (25) and abuts against the tooth surface of the gear ring (14), the surface of the piston plate (28) is fixedly equipped with a spring (34), one end of the spring (34) is fixedly connected with the sealing frame (25), the side wall of the sealing frame (25) is fixedly connected with an extension pipe (30), the inner circumferential surface of the air guide pipe (26) is fixedly equipped with a first one-way valve (31), the inner circumferential surface of the extension pipe (30) is fixedly equipped with a second one-way valve (32), and the outer circumferential surface of the air guide pipe (26) is fixedly connected with an electromagnetic exhaust valve (33).

9. A tire mold clamping and pressurizing device according to claim 5, characterized in that: A sealing ring (36) is fixedly mounted on the lower surface of the lower mold (5). The sealing ring (36) is made of rubber material, and the size of the sealing ring (36) is larger than the size of the annular groove (27).

10. A tire mold clamping and pressurizing device according to claim 8, characterized in that: One end of the extension tube (30) is fixedly connected to a nozzle (35), and the nozzle (35) is located above the brush wire (39).

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