Replacing device and method for tire mold

Abstract

The invention relates to the technical field of mold auxiliary operation equipment, and discloses a tire mold replacement device and a method thereof.The tire mold replacement device comprises a base, a supporting frame is fixedly connected to the inner bottom wall of the base, a motor is fixedly connected to the upper surface of the supporting frame, and the output end of the motor penetrates through the interior of the supporting frame and is fixedly provided with a main bevel gear; the tooth end of the main bevel gear is connected with a steering bevel gear in a meshed mode, a transmission shaft is fixedly connected into the steering bevel gear, first bearings are installed at the two ends of the transmission shaft, fixing bases are installed on the outer sides of the first bearings, and a transmission bevel gear is installed on the side, away from the steering bevel gear, of the transmission shaft. A main bevel gear is driven by a motor to rotate, and a longitudinal bevel gear and a screw rod rotate forwards and backwards through a steering bevel gear, a transmission shaft and a transmission bevel gear, so that a movable frame and an inner supporting platform plate ascend or descend through a screw sleeve, accurate ascending and descending of a bearing platform are achieved, and the distance between a mold and an external platform can be flexibly adjusted.

Description

Technical Field

[0001] This invention relates to the field of mold auxiliary operation equipment technology, specifically to a tire mold changing device and method. Background Technology

[0002] Mold replacement is a high-frequency and critical operation during mold processing, maintenance, and production line switchover. It involves the removal and installation of bolts on components such as mold type blocks and steel rings, and is the core of mold replacement. Currently, existing mold replacement methods mostly rely on manual handling or simple supports for the mold. This results in a narrow space between the mold and the operating platform, making it difficult for operators to easily remove and install bolts and replace components. This not only leads to high labor intensity and low replacement efficiency, but also easily causes bolt misalignment, mold component damage, and even safety hazards due to insufficient operating space.

[0003] Existing auxiliary devices are often complex in structure and lack specificity, making it difficult to accurately adapt to the entire process of "component disassembly and assembly - position adjustment - reset and fixation" during mold replacement. They also make it difficult to achieve rapid and stable adjustment of the operable space between the mold and the external platform. Furthermore, the lack of standardized mold replacement methods results in cumbersome processes and significant differences in operation among different operators, affecting the quality and efficiency of mold replacement. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a tire mold changing device and method, solving the problems of insufficient operating space and cumbersome process for mold changing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tire mold replacement device, comprising a base, a support frame fixedly connected to the inner bottom wall of the base, a motor fixedly connected to the upper surface of the support frame, a main bevel gear fixedly mounted on the output end of the motor passing through the interior of the support frame, a steering bevel gear meshing with the tooth end of the main bevel gear, a drive shaft fixedly connected inside the steering bevel gear, bearings 1 mounted at both ends of the drive shaft, a fixed seat mounted on the outer side of the bearings 1, a transmission bevel gear mounted on the side of the drive shaft away from the steering bevel gear, a longitudinal bevel gear meshing with the tooth end of the transmission bevel gear, a lead screw fixedly connected inside the longitudinal bevel gear, a bearing 2 mounted at the bottom end of the lead screw, a support seat mounted on the outer wall of the bearing 2, a threaded sleeve threadedly connected to the outer wall of the lead screw, a movable frame mounted on the lower surface of the threaded sleeve, and an inner support platform plate fixedly connected to the upper surface of the movable frame.

[0006] The above scheme works by using the main bevel gear and the steering bevel gear to convert the longitudinal rotational motion output by the motor into a lateral transmission power input. The transmission shaft transmits the lateral power output by the steering bevel gear, and distributes the power to the transmission bevel gear to drive the longitudinal bevel gear, causing the lead screw to rotate in both directions. Through the threaded engagement between the lead screw and the threaded sleeve, the rotational motion is converted into linear lifting motion. The moving frame is fixed to the threaded sleeve and rises and falls synchronously with the threaded sleeve, thereby driving the inner support platform plate to complete the lifting action.

[0007] Preferably, the lower surface of the fixed base is fixedly connected to the inner bottom wall of the base, the lower surface of the support base is fixedly connected to the inner bottom wall of the base, and the lower surface of the movable frame is provided with a fixed frame.

[0008] Preferably, the interior of the fixing frame is disposed on the outer wall of the lead screw, the lower surface of the fixing frame is fixedly connected to the inner bottom wall of the base, the upper surface of the base is fixedly connected to an outer support platform, and the inner wall of the outer support platform is disposed on the outer wall of the inner support platform plate.

[0009] Preferably, reinforcing plates are fixedly connected inside the fixed frame and the movable frame, and T-shaped grooves are opened inside the inner support platform plate and the outer support platform. Fixed claws are slidably connected to the inner wall of the T-shaped grooves. A mold body is provided on the upper surface of the outer support platform, and a mold stop steel ring is provided inside the mold body. The mold stop steel ring is located on the upper side of the inner support platform plate, and the outer wall of the mold stop steel ring is set on the outer wall of the fixed claw.

[0010] Preferably, the mold body has movable type blocks inside, the movable type blocks have connecting bolts inside, and the connecting bolts are threaded into the mold body. The mold body also has ejector rods inside.

[0011] Preferably, one end of a telescopic rod is fixedly connected to the lower surface of the movable frame, and the other end of the telescopic rod is fixedly connected to a compression plate. An air bladder is provided on the upper surface of the compression plate. The upper surface of the air bladder is installed on the inner top wall of the fixed frame. An exhaust pipe is installed inside the air bladder and penetrates the interior of the compression plate.

[0012] Preferably, the inner support platform plate has a discharge trough inside, and a collection cylinder is provided on the lower side of the discharge trough. The upper surface of the collection cylinder is installed on the lower surface of the inner support platform plate.

[0013] Preferably, the lower surface of the fixing claw is provided with two T-shaped nuts, the outer wall of the T-shaped nuts is slidably connected to the inner wall of the T-shaped groove, and the outer wall of the T-shaped nuts is provided with a cleaning plate.

[0014] Preferably, the outer wall of the cleaning plate is set on the inner wall of the T-shaped groove, and the inside of the fixing claw is provided with an adjusting bolt, the outer wall of the adjusting bolt being threadedly connected to the inside of the T-shaped nut.

[0015] Preferably, a method for replacing a tire mold replacement device, the method comprising the following steps: S1. Place the mold of the movable type block to be replaced on the inner support platform plate, and clamp and fix the mold by moving the fixing claw by operating the adjusting bolt to prevent the mold from sliding during the operation. S2. Start the motor. The motor outputs power to drive the main bevel gear to rotate. First, the longitudinal motion output by the support frame is converted into lateral motion through the steering bevel gear. Then, the power is transmitted to the longitudinal bevel gear through the transmission shaft and transmission bevel gear. The longitudinal bevel gear converts the lateral motion back into longitudinal motion, thereby driving the lead screw to rotate in the forward direction. S3. Since the external thread at the top of the lead screw meshes with the internal thread inside the lead sleeve, when the lead screw rotates in the forward direction, it will drive the lead sleeve and the moving frame to move upward along the lead screw. The inner support platform plate rises synchronously with the moving frame. When the inner support platform plate rises to the preset height, sufficient operating space is formed between the mold and the external platform. The operator can easily disassemble the connecting bolts on the mold movable type block to remove the old movable type block. S4. Install the new movable type blocks into the corresponding positions on the mold, and gradually tighten the connecting bolts to complete the installation of the movable type blocks; S5. After the connecting bolts are removed and the movable blocks are replaced, control the motor to run in reverse, drive the lead screw to rotate in reverse, and then drive the moving frame and the inner support platform plate to descend synchronously until the mold is reset. Turn off the motor, operate the adjusting bolt to loosen the fixing claw, and complete the entire mold movable block replacement process.

[0016] This invention provides a tire mold changing device and method. It has the following advantages: 1. This invention uses a motor to drive the main bevel gear to rotate. Through the steering bevel gear, transmission shaft and transmission bevel gear, the longitudinal bevel gear and lead screw reverse the direction. This causes the moving frame and inner support platform plate to rise or fall through the screw sleeve, achieving precise lifting and lowering of the receiving platform. It can flexibly adjust the distance between the mold and the external platform, providing sufficient operating space for the bolt disassembly and assembly of the mold movable blocks and steel rings and the replacement of parts, reducing the difficulty of operation.

[0017] 2. This invention uses the up-and-down movement of the moving frame, along with the cooperation of the telescopic rod and the extrusion plate, to compress or stretch the airbag, thereby expelling or inhaling air through the exhaust pipe. This not only dissipates heat from the transmission bevel gear and the longitudinal bevel gear, but also reduces the amount of debris adhering to the longitudinal bevel gear, thus preventing it from affecting the transmission of air between the transmission bevel gear and the longitudinal bevel gear.

[0018] 3. By operating the adjusting bolt, the fixing claw can be fixed in position along the T-slot to clamp and fix different molds on the upper side of the inner support platform plate, thereby fixing different molds and facilitating subsequent replacement of different molds, thus improving the adaptability of the device.

[0019] 4. The present invention uses a discharge trough and a collection cylinder to collect debris pushed by the cleaning plate towards the center of the inner support platform plate, so as to avoid affecting the operation of the internal components of the moving frame. On the side away from the inner support platform plate, the debris is discharged outward through the T-shaped groove opened on the outer support platform by the movement of the cleaning plate, so as to avoid affecting the movement of the fixing claw. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention; Figure 2 This is a cross-sectional view of the internal structure of the fixed frame of the present invention; Figure 3 This is a cross-sectional view of the internal structure of the movable frame of the present invention; Figure 4 This is a cross-sectional schematic diagram of the internal structure of the base of the present invention; Figure 5 This is a partial structural diagram of the extrusion disc of the present invention; Figure 6 This is a partial structural diagram of the collection cylinder of the present invention; Figure 7 This is a partial structural diagram of the fixing claw of the present invention; Figure 8 This is a partial structural diagram of the T-shaped nut of the present invention.

[0021] The components are as follows: 1. Base; 2. Support frame; 3. Motor; 4. Main bevel gear; 5. Steering bevel gear; 6. Drive shaft; 7. Bearing 1; 8. Fixed seat; 9. Transmission bevel gear; 10. Longitudinal bevel gear; 11. Lead screw; 12. Bearing 2; 13. Support seat; 14. Sleeve; 15. Fixed frame; 16. Moving frame; 17. Inner support platform plate; 18. Outer support platform; 19. Reinforcing plate; 20. T-slot; 21. Fixed claw; 22. Mold body; 23. Mold stop steel ring; 24. Movable block; 25. Connecting bolt; 26. Ejector rod; 27. Telescopic rod; 28. Extrusion plate; 29. ​​Airbag; 30. Exhaust pipe; 31. Discharge chute; 32. Collection cylinder; 33. T-nut; 34. Cleaning plate; 35. Adjusting bolt. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see the appendix Figure 1 - Appendix Figure 3 This invention provides a tire mold replacement device, including a base 1, a support frame 2 fixedly connected to the inner bottom wall of the base 1, a motor 3 fixedly connected to the upper surface of the support frame 2, the output end of the motor 3 passing through the interior of the support frame 2 and fixedly mounted with a main bevel gear 4, the tooth end of the main bevel gear 4 meshing with a steering bevel gear 5, a drive shaft 6 fixedly connected inside the steering bevel gear 5, bearings 7 installed at both ends of the drive shaft 6, a fixed seat 8 installed on the outer side of the bearings 7, a drive bevel gear 9 installed on the side of the drive shaft 6 away from the steering bevel gear 5, a longitudinal bevel gear 10 meshing with the tooth end of the drive bevel gear 9, a lead screw 11 fixedly connected inside the longitudinal bevel gear 10, a bearing 12 installed at the bottom end of the lead screw 11, a support seat 13 installed on the outer wall of the bearing 12, a threaded sleeve 14 threadedly connected to the outer wall of the lead screw 11, a movable frame 16 installed on the lower surface of the threaded sleeve 14, and an inner support platform plate 17 fixedly connected to the upper surface of the movable frame 16.

[0024] Specifically, the support frame 2 is used to fix the motor 3, transmit and distribute the vibration and load of the motor 3, and ensure stable power output. The main bevel gear 4 transmits power to the surrounding steering bevel gears 5, and through the transmission shaft 6 and transmission bevel gear 9, transmits power to the surrounding longitudinal bevel gears 10 and lead screw 11. As the lead screw 11 rotates, the moving frame 16 moves upward or downward through the threaded sleeve 14, realizing precise lifting and lowering of the receiving platform. The distance between the mold and the external platform can be flexibly adjusted, providing sufficient operating space for the bolt disassembly and assembly of the mold movable block 24 and steel ring and the replacement of parts, reducing the difficulty of operation. The bottom end of the lead screw 11 is supported by the bearing 12 to ensure the stability of the lead screw 11 during rotation. The upper side of the lead screw 11 is equipped with a limiting pad to limit the range of movement of the threaded sleeve 14 and the inner support platform plate 17. The transmission shaft 6 is supported by the bearing 7 to reduce rotational friction and ensure smooth rotation of the transmission shaft 6.

[0025] Please see the appendix Figure 2 The lower surface of the fixed seat 8 is fixedly connected to the inner bottom wall of the base 1, the lower surface of the support seat 13 is fixedly connected to the inner bottom wall of the base 1, and the lower surface of the movable frame 16 is provided with a fixed frame 15.

[0026] Specifically, the base 1 fixes the fixed seat 8 and the support seat 13 respectively, thereby providing support for the connecting parts of the fixed seat 8 and the support seat 13. The moving frame 16 drives the support platform on its upper side to lift and lower, providing operating space for changing mold parts.

[0027] Please see the appendix Figure 2 The interior of the fixed frame 15 is set on the outer wall of the lead screw 11. The lower surface of the fixed frame 15 is fixedly connected to the inner bottom wall of the base 1. The upper surface of the base 1 is fixedly connected to the outer support platform 18. The inner wall of the outer support platform 18 is set on the outer wall of the inner support platform plate 17.

[0028] Specifically, the fixed frame 15 has a groove inside for the lead screw 11 to rotate, and the outer support platform 18 serves as the external support reference for the mold, which cooperates with the inner support platform plate 17 to form a complete bearing surface.

[0029] Please see the appendix Figure 1 - Appendix Figure 3 The fixed frame 15 and the movable frame 16 are respectively fixedly connected to the interior of the reinforcing plate 19. The interior of the inner support platform plate 17 and the outer support platform 18 are both provided with T-shaped grooves 20. The inner wall of the T-shaped groove 20 is slidably connected to the fixing claw 21. The upper surface of the outer support platform 18 is provided with the mold body 22. The mold body 22 is provided with the mold stop steel ring 23. The mold stop steel ring 23 is located on the upper side of the inner support platform plate 17. The outer wall of the mold stop steel ring 23 is provided on the outer wall of the fixing claw 21.

[0030] Specifically, the structural rigidity of the fixed frame 15 and the movable frame 16 is enhanced by the reinforcing plate 19 to prevent deformation under heavy load. The opening of the T-slot 20 provides a sliding track for the fixed claw 21. The mold body 22 is the main body of the tire mold for the part to be replaced. The mold stop steel ring 23, as the key positioning component of the mold, cooperates with the fixed claw 21 to ensure the precise positioning of the mold on the platform.

[0031] Please see the appendix Figure 3 - Appendix Figure 4 The mold body 22 has a movable type block 24 inside, and a connecting bolt 25 inside the movable type block 24. The connecting bolt 25 is threaded into the mold body 22. The mold body 22 also has an ejector rod 26 inside.

[0032] Specifically, the movable type block 24 serves as a replaceable cavity component of the mold body 22 and is the main replacement object of this device. The connecting bolt 25 is used to fix the movable type block 24 to the mold body 22 and is the core fastener for disassembly and assembly operations. The ejector rod 26 assists in disassembling the movable type block 24. After the connecting bolt 25 is loosened, the old movable type block 24 is ejected for easy removal.

[0033] Please see the appendix Figure 5 One end of a telescopic rod 27 is fixedly connected to the lower surface of the movable frame 16, and the other end of the telescopic rod 27 is fixedly connected to a compression plate 28. An airbag 29 is provided on the upper surface of the compression plate 28. The upper surface of the airbag 29 is installed on the inner top wall of the fixed frame 15. An exhaust pipe 30 is installed inside the airbag 29 and penetrates the interior of the compression plate 28.

[0034] Specifically, the exhaust pipe 30 is used to expel air when the airbag 29 is compressed, and air can also be drawn in from the exhaust pipe 30. The fixed frame 15 has a groove inside for the movement and extension of the telescopic rod 27. The elasticity of the airbag 29 is used to limit the movement of the compression plate 28, so that the telescopic rod 27 can extend and retract appropriately.

[0035] Please see the appendix Figure 5 - Appendix Figure 6 The inner support platform plate 17 has a discharge trough 31 inside, and a collection cylinder 32 is provided on the lower side of the discharge trough 31. The upper surface of the collection cylinder 32 is installed on the lower surface of the inner support platform plate 17.

[0036] Specifically, the dust and debris in the groove of the inner support platform plate 17 are collected by the discharge trough 31, and the collection cylinder 32 is installed below the discharge trough 31 to receive and collect the dust and debris, so as to avoid affecting the operation of the device.

[0037] Please see the appendix Figure 7 - Appendix Figure 8 The lower surface of the fixing claw 21 is provided with two T-shaped nuts 33. The outer wall of the T-shaped nut 33 is slidably connected to the inner wall of the T-shaped groove 20. The outer wall of the T-shaped nut 33 is provided with a cleaning plate 34.

[0038] Specifically, the T-nut 33 and the T-slot 20 cooperate to provide a basis for the sliding and locking of the fixing claw 21, while the cleaning plate 34 slides in the T-slot 20 with the T-nut 33 to clean the dust and debris in the slot and prevent jamming.

[0039] Please see the appendix Figure 7 - Appendix Figure 8 The outer wall of the cleaning plate 34 is set on the inner wall of the T-groove 20, and the inside of the fixing claw 21 is provided with an adjusting bolt 35. The outer wall of the adjusting bolt 35 is threadedly connected to the inside of the T-nut 33.

[0040] Specifically, adjusting bolt 35 is used to adjust the position and clamping force of the fixing claw 21, so as to achieve adaptive clamping for molds of different sizes.

[0041] Please see the appendix Figure 1 - Appendix Figure 8A method for replacing a tire mold changing device, the method comprising the following steps: S1. Place the mold of the movable type block 24 to be replaced on the inner support platform plate 17. By operating the adjusting bolt 35, the fixing claw 21 is moved to clamp and fix the mold to prevent the mold from sliding during the operation. S2. Start motor 3. Motor 3 outputs power to drive main bevel gear 4 to rotate. First, the longitudinal motion output by support frame 2 is converted into lateral motion through steering bevel gear 5. Then, the power is transmitted to longitudinal bevel gear 10 through transmission shaft 6 and transmission bevel gear 9. The lateral motion is converted into longitudinal motion again through longitudinal bevel gear 10, which in turn drives lead screw 11 to rotate in the forward direction. S3. Since the external thread at the top of the lead screw 11 meshes with the internal thread inside the lead sleeve 14, when the lead screw 11 rotates in the forward direction, it will drive the lead sleeve 14 and the moving frame 16 to move upward along the lead screw 11. The inner support platform plate 17 rises synchronously with the moving frame 16. When the inner support platform plate 17 rises to the preset height, sufficient operating space is formed between the mold and the external platform. The operator can easily disassemble the connecting bolts 25 on the mold movable type block 24 to remove the old movable type block 24. S4. Install the new movable type block 24 into the corresponding position of the mold, and gradually tighten the connecting bolts 25 to complete the installation of the movable type block 24. After the S5 connecting bolt 25 is disassembled and the movable block 24 is replaced, the control motor 3 is rotated in reverse, which drives the lead screw 11 to rotate in reverse, thereby driving the moving frame 16 and the inner support platform plate 17 to descend synchronously until the mold is reset. Then, the motor 3 is turned off, and the adjusting bolt 35 is operated to loosen the fixing claw 21, thus completing the entire mold movable block 24 replacement process.

[0042] Specifically, the aforementioned components not only allow for the replacement of the mold movable type block 24 but also the mold steel ring. The new steel ring to be installed is placed on the receiving platform, and the moving fixing claw 21 on the platform clamps and secures the steel ring, preventing slippage during operation. The mold to be fitted with the steel ring is placed on the receiving platform, and its position is adjusted to ensure precise alignment between the mold and the steel ring, guaranteeing the accuracy of subsequent bolt installation. After alignment, the mold is further secured using the moving fixing claw 21. The motor 3 is started, driving the 4 to rotate. Through the cooperation of the steering bevel gear 5, the transmission shaft 6, and the transmission bevel gear 9, the longitudinal bevel gear 10 rotates, thereby driving the lead screw 1. 1. Rotation; Through the cooperation of the upper side of the lead screw 11 and the lead sleeve 14, when the lead screw 11 rotates in the forward direction, it drives the moving frame 16 and the inner support platform plate 17 to rise, so that the mold and the external platform form a sufficient operating space; In this space, the operator first precisely aligns the steel ring with the mold, and then installs the bolts on the steel ring and the mold step by step to ensure that the bolts are installed firmly and in place; After the bolts are installed, the motor 3 is controlled to rotate in the reverse direction, driving the lead screw 11 to rotate in the reverse direction, and then driving the moving frame 16 and the inner support platform plate 17 to descend synchronously until the mold and the steel ring are reset to the initial position. Then, the motor 3 is turned off and the moving fixing claw 21 is released to complete the entire mold steel ring installation process. Place the mold of the steel ring to be disassembled on the receiving platform, and clamp the mold with the movable fixing claw 21 to prevent the mold from sliding during operation; start the motor 3, which drives the lead screw 11 to rotate forward through the transmission component, causing the receiving platform to rise and creating sufficient operating space between the mold and the external platform; within this space, the operator gradually removes the bolts on the mold steel ring. After all the bolts are removed, the old steel ring is removed; if a new steel ring needs to be replaced, the above operation can be repeated to complete the installation of the new steel ring; if only the steel ring needs to be disassembled, it can be disassembled directly; after the disassembly and subsequent installation are completed, control the motor 3 to rotate in reverse, the lead screw 11 to rotate in reverse, the receiving platform descends to the initial position, the motor 3 is turned off, the movable fixing claw 21 is released, and the entire mold steel ring disassembly process is completed.

[0043] Workflow: The main bevel gear 4 is driven to rotate by the motor 3, thereby transmitting power to the steering bevel gears 5 around the main bevel gear 4. The power received by the steering bevel gear 5 is transmitted to the longitudinal bevel gear 10 through the transmission bevel gear 9 via the transmission shaft 6. The bearing 7 and the fixed seat 8 support the rotation of the transmission shaft 6, the steering bevel gear 5 and the transmission bevel gear 9 to ensure the stability of power transmission. The longitudinal bevel gear 10 drives the lead screw 11 to rotate forward under the support of the bearing 12 and the support seat 13. Through the engagement of the upper thread of the lead screw 11 with the thread sleeve 14, the thread sleeve 14 and the moving frame 16 move upward. The inner support platform plate 17 moves upward synchronously with the moving frame 16, and the mold on the upper side of the inner support platform plate 17 moves upward. The distance between the mold and the outer platform can be flexibly adjusted.

[0044] When the moving frame 16 moves upward, a groove is provided inside the fixed frame 15 for the telescopic rod 27 to extend and retract. After the moving frame 16 moves the telescopic rod 27 and the extrusion plate 28 upward, the extrusion plate 28 presses against the airbag 29, stretching the telescopic rod 27. This causes the airbag 29 to spray air through the exhaust pipe 30 to the connection between the transmission bevel gear 9 and the longitudinal bevel gear 10. This not only dissipates heat from the transmission between the transmission bevel gear 9 and the longitudinal bevel gear 10, but also reduces the amount of debris adhering to the longitudinal bevel gear 10, which could affect the transmission between the transmission bevel gear 9 and the longitudinal bevel gear 10. When the moving frame 16 returns to its original position downward, the elasticity of the airbag 29 allows the extrusion plate 28 to move downward to a suitable position, limiting the lower side of the telescopic rod 27 and causing the telescopic rod 27 to compress itself to accommodate the movement of the moving frame 16. During this process, the airbag 29 inhales air itself to facilitate subsequent air spraying operations.

[0045] By operating the adjusting bolt 35, the T-nut 33 can be installed on the fixing claw 21. As the adjusting bolt 35 rotates, it abuts against the inner wall of the T-groove 20, while the two sides of the fixing claw 21 abut against the surface of the inner support platform plate 17, forming a relative repulsive force to ensure the stability of the fixing claw 21. The fixing claw 21 and its connecting parts are set around the inner support platform plate 17 to facilitate the clamping and fixing of the mold. Cleaning plates 34 are provided on the left and right sides of the two T-nuts 33 to facilitate the movement of the fixing claw 21. During operation, debris on the inner walls of the T-slots 20 on the inner support platform plate 17 and the outer support platform 18 is cleaned. Debris on the side closer to the center of the inner support platform plate 17 is pushed by the cleaning plate 34 and collected in the collection cylinder 32 through the discharge chute 31, thus preventing the interior of the moving frame 16 from affecting the transmission of the lead screw 11. On the side away from the inner support platform plate 17, the debris is discharged outward through the T-slots 20 on the outer support platform 18 by the movement of the cleaning plate 34, thus preventing the fixed claw 21 from affecting the movement of the fixed claw 21 on the inner wall of the T-slots 20.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tire mold changing device, comprising a base (1), characterized in that: A support frame (2) is fixedly connected to the inner bottom wall of the base (1). A motor (3) is fixedly connected to the upper surface of the support frame (2). The output end of the motor (3) passes through the interior of the support frame (2) and is fixedly provided with a main bevel gear (4). The tooth end of the main bevel gear (4) is meshed with a steering bevel gear (5). A drive shaft (6) is fixedly connected inside the steering bevel gear (5). Bearings (7) are installed at both ends of the drive shaft (6). A fixed seat (8) is installed on the outside of the bearings (7). The drive shaft (6) is away from the steering bevel gear. (5) is equipped with a transmission bevel gear (9) on one side. The tooth end of the transmission bevel gear (9) is meshed with a longitudinal bevel gear (10). The longitudinal bevel gear (10) is fixedly connected to a lead screw (11). The bottom end of the lead screw (11) is equipped with a bearing (12). The outer wall of the bearing (12) is equipped with a support seat (13). The outer wall of the lead screw (11) is threaded with a threaded sleeve (14). The lower surface of the threaded sleeve (14) is equipped with a movable frame (16). The upper surface of the movable frame (16) is fixedly connected with an inner support platform plate (17).

2. The tire mold changing device according to claim 1, characterized in that: The lower surface of the fixed seat (8) is fixedly connected to the inner bottom wall of the base (1), the lower surface of the support seat (13) is fixedly connected to the inner bottom wall of the base (1), and the lower surface of the movable frame (16) is provided with a fixed frame (15).

3. The tire mold changing device according to claim 2, characterized in that: The interior of the fixed frame (15) is set on the outer wall of the lead screw (11). The lower surface of the fixed frame (15) is fixedly connected to the inner bottom wall of the base (1). The upper surface of the base (1) is fixedly connected to the outer support platform (18). The inner wall of the outer support platform (18) is set on the outer wall of the inner support platform plate (17).

4. The tire mold changing device according to claim 2, characterized in that: The fixed frame (15) and the movable frame (16) are respectively fixedly connected with reinforcing plates (19). The inner support platform plate (17) and the outer support platform (18) are both provided with T-shaped grooves (20). The inner wall of the T-shaped groove (20) is slidably connected with a fixing claw (21). The upper surface of the outer support platform (18) is provided with a mold body (22). The mold body (22) is provided with a mold stop steel ring (23). The mold stop steel ring (23) is located on the upper side of the inner support platform plate (17). The outer wall of the mold stop steel ring (23) is provided on the outer wall of the fixing claw (21).

5. A tire mold changing device according to claim 4, characterized in that: The mold body (22) is provided with movable type (24) inside, and the movable type (24) is provided with connecting bolt (25) inside, and the connecting bolt (25) is threadedly connected to the inside of the mold body (22). The mold body (22) is provided with ejector rod (26) inside.

6. The tire mold changing device according to claim 1, characterized in that: One end of a telescopic rod (27) is fixedly connected to the lower surface of the movable frame (16), and the other end of the telescopic rod (27) is fixedly connected to a compression plate (28). An airbag (29) is provided on the upper surface of the compression plate (28). The upper surface of the airbag (29) is installed on the inner top wall of the fixed frame (15). An exhaust pipe (30) is installed inside the airbag (29), and the exhaust pipe (30) penetrates the interior of the compression plate (28).

7. A tire mold changing device according to claim 1, characterized in that: The inner support platform plate (17) has a discharge trough (31) inside, and a collection cylinder (32) is provided on the lower side of the discharge trough (31). The upper surface of the collection cylinder (32) is installed on the lower surface of the inner support platform plate (17).

8. A tire mold changing device according to claim 4, characterized in that: The lower surface of the fixing claw (21) is provided with two T-shaped nuts (33), the outer wall of the T-shaped nut (33) is slidably connected to the inner wall of the T-shaped groove (20), and the outer wall of the T-shaped nut (33) is provided with a cleaning plate (34).

9. A tire mold changing device according to claim 8, characterized in that: The outer wall of the cleaning plate (34) is set on the inner wall of the T-groove (20), and the inside of the fixing claw (21) is provided with an adjusting bolt (35), the outer wall of the adjusting bolt (35) is threadedly connected to the inside of the T-nut (33).

10. A method for replacing a tire mold changing device, characterized in that, A tire mold replacement device according to any one of claims 1-9, the replacement method comprising the following steps: S1. Place the mold of the movable type block (24) to be replaced on the inner support platform plate (17). By operating the adjusting bolt (35), the fixing claw (21) moves to clamp and fix the mold to prevent the mold from sliding during the operation. S2. Start the motor (3). The motor (3) outputs power to drive the main bevel gear (4) to rotate. First, the longitudinal motion output by the support frame (2) is converted into lateral motion through the steering bevel gear (5). Then, the power is transmitted to the longitudinal bevel gear (10) through the transmission shaft (6) and the transmission bevel gear (9). The lateral motion is converted into longitudinal motion again through the longitudinal bevel gear (10), which in turn drives the lead screw (11) to rotate in the forward direction. S3. Since the external thread at the top of the lead screw (11) meshes with the internal thread inside the lead sleeve (14), when the lead screw (11) rotates in the forward direction, it will drive the lead sleeve (14) and the moving frame (16) to move upward along the lead screw (11). The inner support platform plate (17) rises synchronously with the moving frame (16). When the inner support platform plate (17) rises to the preset height, sufficient operating space is formed between the mold and the external platform. The operator can easily disassemble the connecting bolts (25) on the mold movable type block (24) and remove the old movable type block (24). S4. Install the new movable type block (24) into the corresponding position of the mold, and gradually tighten the connecting bolts (25) to complete the installation of the movable type block (24); S5. After the connecting bolt (25) is disassembled and the movable block (24) is replaced, the control motor (3) is turned in reverse, which drives the lead screw (11) to rotate in reverse, thereby driving the moving frame (16) and the inner support platform plate (17) to descend synchronously until the mold is reset. Then, the motor (3) is turned off, and the adjusting bolt (35) is operated to loosen the fixing claw (21) to complete the entire mold movable block (24) replacement process.

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