A mobile tire unloading device and method for large format building machines

Abstract

This application provides a mobile tire unloading device and method for large-scale forming machines, belonging to the technical field of tire manufacturing equipment. The technical solution is as follows: the mobile tire unloading device includes a tire unloading ring assembly, a moving base, and a tire blank lifting assembly. The tire unloading ring assembly includes a support frame, a rotating mechanism, a ring body, and several bearings. The rotating mechanism drives the ring body to rotate, and the bearings are used to hold or release the tire blank. The moving base drives the tire unloading ring assembly to move between the forming station and the tire unloading station. The tire blank lifting assembly includes a first lifting platform, a second lifting platform, and a third lifting platform arranged in sequence. Each lifting platform is equipped with a transmission chain carrying device for conveying and transferring the tire blank trolley. Tire blank unloading and transfer are completed through the movement of the tire unloading ring assembly, the rotation of the ring body, and the coordination of the tire blank lifting assembly. This application can eliminate the need for an overall lifting mechanism for the tire unloading ring assembly, lower the equipment's center of gravity, reduce the foundation excavation depth, and improve the stability and safety of tire unloading.

Description

Technical Field

[0001] This application belongs to the field of tire manufacturing equipment technology, specifically relating to a mobile tire unloading device and method for large-size tire forming machines. Background Technology

[0002] After the tire blank is formed, the large-size tire forming machine needs to unload the tire blank from the forming drum and transfer it to the subsequent work station. Because the large-size tire blank is huge and extremely heavy, its unloading process usually requires a huge mobile unloading device and a deep pit or sunken platform to support the tire blank, which results in extremely high requirements for the depth of the foundation processing of the equipment and a huge amount of infrastructure construction.

[0003] For example, patent CN104441720B discloses a turning and transferring device for a giant engineering tire forming machine. It includes a horizontal slide rail laid on the ground, a gantry frame slidably mounted on the horizontal slide rail, and a transfer ring rotatably mounted on the gantry frame column via a lifting mechanism. The working process is as follows: the transfer ring moves along the horizontal slide rail to the tire receiving position, is adjusted to the center height of the forming drum by the lifting mechanism, and then clamps the tire blank; subsequently, it moves along the horizontal slide rail to the tire unloading position, and the height is adjusted again; the turning mechanism turns the transfer ring and tire blank to a horizontal state; finally, the lifting mechanism lowers the tire blank until it contacts and releases it from the tire unloading trolley, completing the tire unloading process.

[0004] However, the lifting mechanism must have extremely high load-bearing capacity, which requires the addition of a large number of heavy equipment to the gantry beams and columns, resulting in a bulky structure with a high center of gravity, posing safety hazards. In addition, it is difficult to ensure synchronization of the dual-sided lifting mechanism in actual operation, causing the transfer ring to tilt or sway during the lifting process, which in turn causes uneven distribution of the clamping force of the tiles on the transfer ring on the tire blank, which can easily damage the quality of the tire blank. Summary of the Invention

[0005] This application addresses the problems of existing structures being bulky and having a high center of gravity, posing safety hazards, and potentially causing uneven distribution of clamping force between the tires and the tire blank due to deviations in the position of the transfer ring. It provides a mobile tire unloading device and method for large-scale molding machines, which can achieve a simplified structure with a lower center of gravity and a fixed position of the transfer ring, making it less likely to cause uneven distribution of clamping force between the tires and the tire blank.

[0006] Firstly, in order to solve the above problems, the technical solution adopted in this application is a mobile tire unloading device for a large-scale forming machine, including a tire unloading ring assembly, a moving base, and a tire lifting assembly.

[0007] The tire unloading ring assembly includes a support frame, a rotating mechanism, a ring body, and several bearings. The rotating mechanism is mounted on the support frame and drives the ring body to rotate. The ring body is at a fixed height relative to the rotation center of the support frame. Several bearings are mounted on the ring body and are used to hold or release the tire blank. A motion base is located at the forming station and is used to move the tire unloading ring assembly from the forming station to the tire unloading station. A tire blank lifting assembly is located at the tire unloading station and includes a first lifting platform, a second lifting platform, and a third lifting platform arranged sequentially in the horizontal direction. Each of the first, second, and third lifting platforms is equipped with a transmission chain carrier for transporting the tire blank trolley. The second lifting platform is positioned corresponding to the end of the travel stroke of the tire unloading ring assembly. The motion base includes a linear guide rail and a base assembly. The linear guide rail is fixed to the forming station, and its end is positioned corresponding to the second lifting platform. The base assembly is slidably mounted on the linear guide rail and is fixedly connected to the support frame.

[0008] The comparative document uses a gantry frame with a long-stroke lifting mechanism, employing a suspended ring body for heavy-duty vertical lifting, resulting in a high center of gravity and a bulky structure. In contrast, this solution uses a moving base to move only the tire-unloading ring assembly horizontally, and explicitly limits the height of the ring body relative to the support frame's rotation center to a fixed value. This directly eliminates the heavy-duty lifting process of the ring body itself, simplifying the equipment structure and lowering the overall center of gravity.

[0009] Regarding force distribution, the comparative design relies on a dual-sided hydraulic lifting mechanism working synchronously. Due to uneven load distribution, this results in stroke deviation on both sides, causing the ring to tilt or sway during lifting, leading to uneven distribution of the clamping force between the tire and the tire blank. In this design, the ring's rotation center height is physically fixed, ensuring stable posture. Furthermore, the second lifting platform is positioned corresponding to the end of the tire removal ring assembly's travel stroke, allowing the tire receiving action to be actively completed by the lower lifting platform, eliminating the need for the ring to change height. This ensures precise ring positioning and a consistently uniform force distribution between the tire and the tire blank, effectively eliminating the risk of tire blank damage caused by lifting sway and guaranteeing tire blank quality.

[0010] Furthermore, the support frame includes a support beam, a powered leg, and a driven leg. The two ends of the support beam are fixedly connected to the tops of the powered leg and the driven leg, respectively. The bottom end of the powered leg is fixed to the base assembly, and a roller is installed at the bottom of the driven leg. The roller provides rolling support on the ground of the tire unloading station, and the length of the driven leg is greater than that of the powered leg. Through this structural design, the length difference between the powered and driven legs effectively compensates for the difference in foundation depth between the forming and unloading stations. This ensures that the support frame maintains a horizontal posture when the tire unloading ring assembly crosses stations of different depths, eliminating the need for uniform deep excavation or leveling of the foundation, significantly reducing civil engineering work and foundation construction costs. Simultaneously, the support beam rigidly fixes the two legs together at the top, and with the rolling support of the bottom roller, the overall rigidity and stability of the support frame are greatly improved, making the equipment safer and more reliable under heavy loads.

[0011] Furthermore, it also includes tire blank guards; the tire blank guards are set on both sides of the first lifting platform, and the tire blank guards are used to guide and limit the tire blank trolley. Through the above structural settings, the tire blank guards can provide forced guidance and lateral limitation for the tire blank trolley as it enters the first lifting platform, ensuring that the tire blank trolley moves smoothly along the predetermined track to the center area of ​​the first lifting platform, avoiding chain drive jamming or conveying failure due to trolley deviation, thereby ensuring the accuracy and reliability of the tire blank trolley's power transfer between the lifting platforms, and further improving the stability of the entire automated tire unloading equipment.

[0012] Secondly, this application also provides a mobile tire unloading method for a large-scale molding machine, comprising the following steps:

[0013] S1. Adjust the tire removal ring assembly and the tire lifting assembly to their initial state;

[0014] S2. Drive several tiles to move until they hug the blank located at the forming station, and place the blank trolley on the first lifting platform.

[0015] S3. Drive the tire unloading ring assembly to move the tire blank from the forming station along the horizontal direction to above the second lifting platform.

[0016] S4. Control the first lifting platform to descend to the preset low position;

[0017] S5. Drive the ring body to rotate through the rotating mechanism until the embryo changes from a vertical state to a horizontal state.

[0018] S6. The tire blank trolley is transferred to the second lifting platform via the transmission chain carrier device on the first lifting platform, and the second lifting platform is controlled to rise to the tire receiving position.

[0019] S7. Drive several tiles to move and release the embryo until the embryo falls into the embryo trolley;

[0020] S8. Control the second lifting platform to descend, and transfer the tire carriage to the third lifting platform through the transmission chain device on the second lifting platform. Control the third lifting platform to rise to the tire exit height, and output the tire carriage from the third lifting platform.

[0021] S9. Control the tire removal ring assembly, ring body and tire embryo lifting assembly to reset to the initial state.

[0022] Furthermore, in step S1, the first lifting platform is located at its highest point of lifting stroke, while the second and third lifting platforms are located at their lowest points of lifting stroke, and the tire unloading ring assembly is located at the forming station. Through these steps, a unified and clear initial position setting for each component of the equipment before the tire unloading operation begins effectively establishes a standardized starting point, ensuring that subsequent actions are sequentially connected within the preset spatial positions. Setting the first lifting platform at the highest point facilitates the tire carriage directly entering above it from the conveying starting point; while setting the second and third lifting platforms at the lowest points avoids spatial interference with the ring or tire, and provides sufficient stroke space for subsequent platform rises to receive the tire, thus ensuring the smooth start of the entire automatic tire unloading process and preventing action conflicts or equipment damage due to chaotic initial positions.

[0023] Furthermore, in step S2, the tire blank trolley is guided and limited by the tire blank stop, guiding it to the center position of the first lifting platform. Through the above steps, as the tire blank trolley enters the first lifting platform, the tire blank stop can apply lateral constraint and guiding force to the trolley in the horizontal direction, gradually correcting its positional deviation and accurately sliding it to the center area of ​​the first lifting platform. This guiding step can effectively avoid chain jamming or positioning failure caused by trolley deviation, ensuring accurate contact between the tire blank trolley and the transmission chain carrier, and providing a reliable foundation for the smooth operation of the trolley during subsequent lifting and lowering with the platform and cross-platform transfer.

[0024] Furthermore, in step S8, after the tire blank falls into the tire blank trolley, the second lifting platform is first lowered to its lowest point of travel, and then the tire blank trolley is transferred to the third lifting platform. Through these steps, after the tire blank is released and falls into the trolley, the second lifting platform is first lowered to its lowest point, causing the trolley to return to its initial height, level with the first and third lifting platforms. This ensures that the transmission chain devices between the platforms can maintain a straight connection and smooth transition during subsequent horizontal transfer. This sequence of lowering before transferring conforms to the equipment's spatial safety logic, effectively avoiding jamming or conveying failures caused by varying platform heights, and improving the smoothness and stability of the tire blank trolley during multi-platform relay transfer.

[0025] Further, in step S9, resetting to the initial state includes: controlling the ring body to flip back to the vertical position; after the ring body flips back to the vertical position, driving the tire unloading ring assembly from the tire unloading station back to the forming station; simultaneously, controlling the tire blank lifting assembly to reset. Through the above steps, after the tire unloading operation is completed, the tire unloading ring assembly and the tire blank lifting assembly can be restored to their initial state in an orderly manner, preparing for the tire unloading operation of the next batch of tire blanks. Because the extra-giant tire blanks are heavy, the ring body is most stable under force in the vertical position. Therefore, controlling the ring body to flip back to the vertical position first, and then driving the entire tire unloading ring assembly back to the forming station, can significantly reduce the risk of off-center loading during the horizontal movement of the equipment and avoid overturning or shaking. At the same time, using the time gap between the ring body flipping and the tire unloading ring assembly returning to control the reset of the tire blank lifting assembly, the parallel return of multiple components is realized, effectively shortening the cycle time and improving the production efficiency of the automated cycle.

[0026] As can be seen from the above technical solutions, this application has the following advantages:

[0027] 1. Simplified structure, low center of gravity, and high safety. The ring rotation center height is fixed, eliminating the need for heavy-load lifting and significantly reducing the overall center of gravity and the risk of tipping over.

[0028] 2. Uniform clamping force ensures the quality of the tire blank. The ring body maintains a stable posture, eliminating uneven clamping force caused by lifting and swaying, effectively preventing damage to the tire blank.

[0029] 3. Reduce infrastructure costs and adapt to stepped foundations. By using outriggers of unequal length to compensate for differences in work station depth, there is no need for uniform deep excavation of the foundation, significantly reducing the amount of earthwork.

[0030] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application are realized and obtained through the structures particularly pointed out in the description, claims and drawings.

[0031] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a specific embodiment of this application;

[0034] Figure 2 for Figure 1 Enlarged view of a portion of point A in the middle;

[0035] Figure 3 for Figure 1 Enlarged view of a section at point B in the middle;

[0036] Figure 4 This is a top view schematic diagram illustrating a specific embodiment of this application;

[0037] Figure 5 This is a schematic diagram of the support frame in a specific embodiment of this application.

[0038] In the diagram: 1. Tire unloading ring assembly; 11. Support frame; 111. Support beam; 112. Power outrigger; 113. Driven outrigger; 1131. Roller; 12. Rotating mechanism; 13. Ring body; 14. Tile block; 2. Motion base; 21. Linear guide rail; 22. Base assembly; 3. Tire blank lifting assembly; 31. First lifting platform; 32. Second lifting platform; 33. Third lifting platform; 4. Forming station; 5. Tire unloading station; 6. Transmission chain carrier; 7. Tire blank side guard; 8. Control box; 9. Tire blank trolley. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0040] Example 1: This example provides a mobile tire unloading device for a large-scale molding machine, including a tire unloading ring assembly 1, a moving base 2, and a tire lifting assembly 3.

[0041] like Figure 1As shown, the tire unloading ring assembly 1 includes a support frame 11, a rotating mechanism 12, a ring body 13, and several pads 14. The rotating mechanism 12, the ring body 13, and the pads 14 can all be implemented using mature structures in the art. The rotating mechanism 12 is mounted on the support frame 11, and the ring body 13 is mounted on the output end of the rotating mechanism 12. The rotating mechanism 12 can drive the ring body 13 to rotate relative to the support frame 11. The rotation center height of the ring body 13 relative to the support frame 11 is fixed. That is, the ring body 13 does not undergo overall lifting and lowering through a lifting mechanism during tire unloading; instead, its posture is changed through the rotating mechanism 12. Several pads 14 are installed at intervals along the circumference of the ring body 13, and the pads 14 can approach or move away from the center of the ring body 13 along an arc-shaped trajectory to hold or release the tire blank. When the tire blank is in a vertical state, the pads 14 can move inward and hold the tire blank; when the tire blank moves to the tire unloading station 5 and flips to a horizontal state, the pads 14 can move outward to release the tire blank.

[0042] like Figure 2 As shown, the motion base 2 is located at the forming station 4 and is used to move the tire removal ring assembly 1 from the forming station 4 to the tire removal station 5. The motion base 2 includes linear guide rails 21 and a base assembly 22. There are two linear guide rails 21, which are parallel to each other and fixed to the ground of the forming station 4. The linear guide rails 21 extend along the forming station 4 toward the tire removal station 5. The base assembly 22 is slidably mounted on the two parallel linear guide rails 21, and the base assembly 22 is fixedly connected to the support frame 11 of the tire removal ring assembly 1, so that when the base assembly 22 moves along the linear guide rails 21, it can synchronously drive the tire removal ring assembly 1 to move.

[0043] The base assembly 22 can be powered by a servo drive mechanism. The servo drive mechanism is a commonly used and mature drive structure in mechanical equipment, and may include a servo motor, a reducer, and a rack and pinion transmission pair. The rack is fixedly arranged along the length of the linear guide rail 21, and the servo motor drives the gear to rotate through the reducer. The gear meshes with the rack, thereby driving the base assembly 22 to slide back and forth along the linear guide rail 21. In other embodiments, the servo drive mechanism can also be implemented using a servo motor, a reducer, and a sprocket and chain transmission mechanism, as long as it can drive the base assembly 22 to move linearly along the linear guide rail 21.

[0044] like Figure 5As shown, the support frame 11 includes a support beam 111, a powered outrigger 112, and a driven outrigger 113. The support beam 111 extends along the length of the linear guide rail 21. One end of the support beam 111 is fixedly connected to the top of the powered outrigger 112, and the other end is fixedly connected to the top of the driven outrigger 113. The bottom end of the powered outrigger 112 is fixed to the base assembly 22, thereby obtaining active walking power through the base assembly 22. The bottom end of the driven outrigger 113 is equipped with a roller 1131, which rolls and supports the ground of the tire unloading station 5, allowing the driven outrigger 113 to move synchronously with the powered outrigger 112 and support the end of the support beam 111 away from the powered outrigger 112.

[0045] Because the ground height of molding station 4 is higher than that of tire unloading station 5, the length of driven outrigger 113 is greater than the length of powered outrigger 112 to accommodate the height difference between the two stations. Here, the length of driven outrigger 113 refers to the vertical distance from the connection position of support beam 111 to the support position of roller 1131, and the length of powered outrigger 112 refers to the vertical distance from the connection position of support beam 111 to the connection position of base assembly 22. With this configuration, the tire unloading ring assembly 1 can maintain a fixed rotation center height of the ring body 13 when moving between molding station 4 and tire unloading station 5, and it is not necessary to install a lifting mechanism on the tire unloading ring assembly 1 to drive the overall lifting and lowering of the ring body 13.

[0046] In this embodiment, the driven leg 113 is a composite gantry-type support leg structure. The driven leg 113 includes an upper connecting gantry and a lower supporting gantry. The top of the upper connecting gantry is fixedly connected to the support beam 111, and the lower supporting gantry is fixedly connected to the bottom of the upper connecting gantry. The height of the lower supporting gantry is greater than the height difference between the ground of the forming station 4 and the ground of the tire unloading station 5, so that when the tire unloading ring assembly 1 moves to the forming station 4, the lower supporting gantry can avoid the ground edge of the forming station 4 near the tire unloading station 5, thus preventing interference between the driven leg 113 and the ground structure of the forming station 4.

[0047] like Figure 3 As shown, the lower support gantry has two support feet at its bottom, each support foot is equipped with at least one set of rollers 1131, and the two sets of rollers 1131 are located on both sides of the lower support gantry, thus forming a double-sided rolling support structure for the driven outrigger 113. This structure, together with the powered outrigger 112, can form a stable support, improve the stability of the support beam 111 and the ring 13 during movement, and reduce the risk of the tire removal ring assembly 1 swaying during movement.

[0048] Furthermore, the molding station 4 is provided with clearance grooves on both sides near the tire unloading station 5, corresponding to the movement path of the rollers 1131. These clearance grooves accommodate the lower structure of the driven support leg 113 and the rollers 1131 when the tire unloading ring assembly 1 moves to the molding station 4. This eliminates the need for the molding station 4 to be excavated to the height of the tire unloading station 5; only local clearance spaces on both sides are required to meet the movement needs of the driven support leg 113. This reduces the foundation excavation depth and infrastructure work at the molding station 4, while ensuring stable support for the tire unloading ring assembly 1 as it moves between the molding station 4 and the tire unloading station 5.

[0049] like Figure 4 As shown, the tire blank lifting assembly 3 is located at the tire unloading station 5. The tire blank lifting assembly 3 includes a first lifting platform 31, a second lifting platform 32, and a third lifting platform 33 arranged sequentially in the horizontal direction. The first lifting platform 31 is used to receive the tire blank trolley 9 and lower the tire blank trolley 9 to a preset low position. The second lifting platform 32 is used to rise to the tire receiving position after the tire unloading ring assembly 1 flips the tire blank. The third lifting platform 33 is used to raise the tire blank trolley 9, which carries the tire blank, to the tire exit height. The second lifting platform 32 is corresponding to the end of the travel stroke of the tire unloading ring assembly 1. When the base assembly 22 moves along the linear guide rail 21 to the end of the linear guide rail 21, the ring body 13 of the tire unloading ring assembly 1 is located above the second lifting platform 32.

[0050] The first lifting platform 31, the second lifting platform 32, and the third lifting platform 33 can all be implemented using fixed heavy-duty scissor lift platforms. Fixed heavy-duty scissor lift platforms are existing, mature equipment, typically comprising a base, scissor arm assembly, hydraulic cylinders, and a support platform. The hydraulic cylinders drive the scissor arm assembly to extend and retract, thereby raising and lowering the support platform. Depending on the weight of the tire blank and tire blank trolley 9, the first lifting platform 31, the second lifting platform 32, and the third lifting platform 33 can be selected from standard heavy-duty scissor lift platforms with corresponding rated loads, or non-standard customized heavy-duty scissor lift platforms can be used.

[0051] The first lifting platform 31, the second lifting platform 32, and the third lifting platform 33 are all equipped with drive chain carriers 6 for conveying the tire carriage 9. The drive chain carriers 6 can be implemented using a heavy-duty chain conveyor mechanism, which is a mature existing conveying equipment. This mechanism may include a conveyor motor, a reducer, a drive sprocket, a driven sprocket, a conveyor chain, and chain guides. Preferably, the drive chain carriers 6 employ a double-row or multi-row heavy-duty chain conveyor mechanism to improve the support stability of the tire carriage 9. The drive chain carriers 6 on the first lifting platform 31, the second lifting platform 32, and the third lifting platform 33 are all arranged along the conveying direction of the tire carriage 9, enabling the tire carriage 9 to be conveyed from the first lifting platform 31 to the second lifting platform 32, and then from the second lifting platform 32 to the third lifting platform 33.

[0052] As can be seen from the above arrangement, the movement path of the tire unloading ring assembly 1 and the conveying path of the tire carriage 9 on the tire carriage lifting assembly 3 intersect at the second lifting platform 32, so that the forming station 4, the tire unloading station 5, and the conveying path of the tire carriage 9 form a T-shaped layout in the top view. With this layout, the tire unloading ring assembly 1 only needs to move from the forming station 4 to above the second lifting platform 32 and rotate, while the tire carriage 9 completes the actions of receiving the vehicle, receiving the tire, and unloading the tire through the first lifting platform 31, the second lifting platform 32, and the third lifting platform 33, thereby reducing the lifting mechanism of the tire unloading ring assembly 1 itself, lowering the center of gravity of the equipment, and simplifying the overall structure.

[0053] The mobile tire unloading device also includes tire blank guards 7. There are two tire blank guards 7, respectively located on both sides of the first lifting platform 31 and extending along the conveying direction of the tire blank trolley 9. The tire blank guards 7 are used to guide and limit the movement of the tire blank trolley 9. Furthermore, the tire blank guards 7 are equipped with several guide wheels, which are spaced apart along the conveying direction of the tire blank trolley 9, with their rotation axes set vertically. When the tire blank trolley 9 enters the first lifting platform 31, the side of the tire blank trolley 9 can roll into contact with the guide wheels, thereby reducing frictional resistance and guiding the tire blank trolley 9 to the predetermined position on the first lifting platform 31, improving the positional accuracy and operational stability of the tire blank trolley 9 when entering the tire blank lifting assembly 3.

[0054] In addition, control boxes 8 are installed on the outside of both the first lifting platform 31 and the third lifting platform 33 to facilitate the operation of tire unloading by staff.

[0055] Example 2: Based on the mobile tire unloading device for a large-format molding machine provided in Example 1, this example further provides a mobile tire unloading method for a large-format molding machine, which includes the following steps:

[0056] S1. Adjust the tire removal ring group 1 and the tire embryo lifting group 3 to their initial state.

[0057] Specifically, in the initial state, the tire unloading ring assembly 1 is located at the forming station 4, the ring body 13 is in a vertical state, and several tiles 14 are in an open state so that the formed tire blank can enter the ring body 13. The first lifting platform 31 in the tire blank lifting assembly 3 is located at the highest point of its lifting stroke, which facilitates the tire blank trolley 9 to enter the first lifting platform 31; the second lifting platform 32 and the third lifting platform 33 are located at the lowest point of their lifting stroke, which facilitates the subsequent transfer of the tire blank trolley 9 in a low position.

[0058] S2. Drive several tiles 14 to move until they hug the blank located at the forming station 4, and place the blank trolley 9 on the first lifting platform 31.

[0059] Specifically, the formed tire blank is in a vertical position and enters the ring 13. Several tiles 14 approach the center of the ring 13 along an arc-shaped trajectory, so that the tiles 14 hug the tire blank from the circumference. Since the height of the ring 13 relative to the rotation center of the support frame 11 is fixed, the height of the ring 13 does not need to be adjusted by raising and lowering the ring 13 as a whole when the tiles 14 hug the tire.

[0060] Simultaneously, the tire carriage 9 is placed on the first lifting platform 31. Tire carriage guards 7 are provided on both sides of the first lifting platform 31, and several guide wheels are provided on the tire carriage guards 7. When the tire carriage 9 enters the first lifting platform 31, the side of the tire carriage 9 rolls into contact with the guide wheels, which guide and limit the tire carriage 9, causing it to enter a predetermined position on the first lifting platform 31, preferably the center position of the first lifting platform 31.

[0061] S3. Drive the tire unloading ring group 1 to move the tire blank from the forming station 4 in the horizontal direction to above the second lifting platform 32.

[0062] Specifically, the base assembly 22 in the motion base 2 slides along two parallel linear guide rails 21 under the drive of the servo walking drive mechanism. The servo walking drive mechanism may include a servo motor, a reducer, and a gear and rack transmission pair. The servo motor drives the gear to rotate through the reducer. The gear meshes with the rack arranged along the length direction of the linear guide rail 21, thereby driving the base assembly 22 to move along the linear guide rail 21.

[0063] The base assembly 22 is fixedly connected to the support frame 11. The power outrigger 112 in the support frame 11 is fixed to the base assembly 22. Therefore, when the base assembly 22 moves, it can drive the power outrigger 112, the support beam 111, the driven outrigger 113, and the ring 13 to move synchronously. Since the driven outrigger 113 is provided with a roller 1131 at its bottom, the roller 1131 rolls and supports the ground of the tire unloading station 5. The driven outrigger 113 can move synchronously with the power outrigger 112 and support the end of the support beam 111 away from the power outrigger 112.

[0064] During movement, the length of the driven outrigger 113 is greater than the length of the powered outrigger 112 to accommodate the height difference between the ground of the forming station 4 and the ground of the tire unloading station 5. Furthermore, the driven outrigger 113 can adopt a composite gantry-type outrigger structure, with the height of its lower supporting gantry greater than the height difference between the ground of the forming station 4 and the ground of the tire unloading station 5. When the tire unloading ring assembly 1 moves between the forming station 4 and the tire unloading station 5, the clearance groove at the edge of the forming station 4 can accommodate the lower structure of the driven outrigger 113 and the roller 1131, thereby preventing interference between the driven outrigger 113 and the ground structure of the forming station 4.

[0065] When the base assembly 22 moves to the end of the linear guide rail 21, the ring 13 of the tire removal ring assembly 1 is located above the second lifting platform 32, and the tire blank is located in the tire receiving area corresponding to the second lifting platform 32.

[0066] S4. Control the first lifting platform 31 to descend to the preset low position.

[0067] Specifically, after the tire carriage 9 enters the first lifting platform 31 and is guided to a predetermined position, the first lifting platform 31 is controlled to descend, causing the tire carriage 9 to descend with the first lifting platform 31 to a preset low position. The first lifting platform 31 can be a fixed heavy-duty scissor-type hydraulic lifting platform, with a hydraulic cylinder driving the scissor arm assembly to retract, thereby lowering the support platform. The preset low position is adapted to the low position height of the second lifting platform 32, so that the tire carriage 9 can be smoothly transferred from the first lifting platform 31 to the second lifting platform 32.

[0068] S5. The ring body 13 is driven to flip by the rotating mechanism 12 until the embryo changes from a vertical state to a horizontal state.

[0069] Specifically, the rotating mechanism 12 drives the ring body 13 to rotate relative to the support frame 11. The ring body 13 causes the tire blank, which is held by the tile 14, to rotate synchronously, gradually changing the tire blank from a vertical state to a horizontal state. During this process, the rotation center height of the ring body 13 relative to the support frame 11 remains fixed, and the tire removal ring assembly 1 does not need to be equipped with a lifting mechanism for driving the overall lifting of the ring body 13. In other words, the posture change of the tire blank is mainly completed by the rotation of the ring body 13, while the height adjustment of the tire blank is completed by the lifting platform in the tire blank lifting assembly 3.

[0070] S6. The tire blank trolley 9 is transferred to the second lifting platform 32 via the transmission chain carrier device 6 on the first lifting platform 31, and the second lifting platform 32 is controlled to rise to the tire receiving position.

[0071] Specifically, the first lifting platform 31, the second lifting platform 32, and the third lifting platform 33 are all equipped with a transmission chain carrier 6, which can be a heavy-duty chain conveyor mechanism. The heavy-duty chain conveyor mechanism includes a conveyor motor, a reducer, a drive sprocket, a driven sprocket, a conveyor chain, and chain guides. Preferably, a double-row or multi-row heavy-duty chain conveyor mechanism is used to improve the support stability of the tire blank trolley 9 during transport.

[0072] After the first lifting platform 31 descends to the preset low position, the drive chain carrier 6 on the first lifting platform 31 is activated, and cooperates with the drive chain carrier 6 on the second lifting platform 32 to transport the tire carriage 9 from the first lifting platform 31 to the second lifting platform 32. After the tire carriage 9 reaches the predetermined position on the second lifting platform 32, the second lifting platform 32 is controlled to rise until the tire carriage 9 approaches the horizontal tire and reaches the tire receiving position.

[0073] S7. Drive several tiles 14 to move and release the embryo until the embryo falls into the embryo trolley 9.

[0074] Specifically, after the second lifting platform 32 rises to the tire-receiving position, several tiles 14 move away from the center of the ring body 13 along an arc-shaped trajectory, releasing the tiles 14 from clamping the tire blank. The tire blank falls into the tire blank carriage 9 under its own gravity, where it is carried. Because the second lifting platform 32 has been pre-raised to the tire-receiving position, the falling distance of the tire blank during release is relatively small, which can improve the stability of tire receiving and reduce the risk of deformation or damage to the tire blank due to falling impact.

[0075] S8. Control the second lifting platform 32 to descend, and transfer the tire carriage 9 to the third lifting platform 33 through the transmission chain carrier device 6 on the second lifting platform 32. Control the third lifting platform 33 to rise to the tire exit height, and output the tire carriage 9 from the third lifting platform 33.

[0076] Specifically, after the tire blank falls into the tire blank trolley 9, the second lifting platform 32 is first controlled to descend to the lowest point of its lifting stroke, so that the second lifting platform 32 and the third lifting platform 33 are at a suitable height for transferring the tire blank trolley 9. Then, the drive chain carrier 6 on the second lifting platform 32 is activated, and in coordination with the drive chain carrier 6 on the third lifting platform 33, the tire blank trolley 9 carrying the tire blank is transported from the second lifting platform 32 to the third lifting platform 33.

[0077] After the tire blank trolley 9 reaches the third lifting platform 33, the third lifting platform 33 is raised to the tire exit height, so that the tire blank trolley 9 and the tire blank it carries are at a height that is easy for external tooling or subsequent conveying equipment to remove. Then, the tire blank trolley 9 is output from the third lifting platform 33, completing the tire blank exit.

[0078] S9. Control the tire removal ring group 1, ring body 13 and tire embryo lifting group 3 to reset to the initial state.

[0079] Specifically, the control rotation mechanism 12 drives the ring body 13 to flip back to the vertical state; after the ring body 13 flips back to the vertical state, the servo walking drive mechanism drives the base assembly 22 to move in the opposite direction along the linear guide rail 21, thereby driving the tire unloading ring group 1 from the tire unloading station 5 back to the forming station 4, waiting for the next tire blank to enter the ring body 13.

[0080] Simultaneously, the tire hoisting assembly 3 is reset, causing the first hoisting platform 31 to rise again to the highest point of its hoisting stroke, while the second hoisting platform 32 and the third hoisting platform 33 descend again to the lowest point of their hoisting strokes. This completes one large-size tire hoist movement and unloading process.

[0081] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0082] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The scope of protection of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the scope of the technology disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of protection of the claims.

Claims

1. A mobile tire unloading device for a large-scale molding machine, characterized in that, It includes a tire removal ring assembly (1), a moving base (2), and a tire lifting assembly (3); The tire removal ring assembly (1) includes a support frame (11), a rotating mechanism (12), a ring body (13), and several tiles (14). The rotating mechanism (12) is installed on the support frame (11) and can drive the ring body (13) to rotate. The ring body (13) is fixed at a height relative to the rotation center of the support frame (11). Several tiles (14) are installed on the ring body (13) and are used to hold or release the tire blank. The motion base (2) is set at the forming station (4) and is used to move the tire removal ring assembly (1) from the forming station (4) to the tire removal station (5). The tire blank lifting assembly (3) is set at the tire removal station (5) and includes a first lifting platform arranged in sequence along the horizontal direction. The platform consists of a first lifting platform (31), a second lifting platform (32), and a third lifting platform (33). Each of the first lifting platform (31), the second lifting platform (32), and the third lifting platform (33) is equipped with a transmission chain carrier (6) for transporting the tire blank trolley (9). The second lifting platform (32) is positioned corresponding to the end of the travel stroke of the tire unloading ring group (1). The moving base (2) includes a linear guide rail (21) and a base assembly (22). The linear guide rail (21) is fixed to the forming station (4), and the end of the linear guide rail (21) is positioned corresponding to the second lifting platform (32). The base assembly (22) is slidably mounted on the linear guide rail (21), and the base assembly (22) is fixedly connected to the support frame (11).

2. The mobile tire unloading device for a large-scale molding machine according to claim 1, characterized in that, The support frame (11) includes a support beam (111), a power leg (112), and a driven leg (113). The two ends of the support beam (111) are fixedly connected to the top of the power leg (112) and the top of the driven leg (113), respectively. The bottom end of the power leg (112) is fixed to the base assembly (22). The bottom end of the driven leg (113) is equipped with a roller (1131). The roller (1131) rolls and supports the ground of the tire unloading station (5). The length of the driven leg (113) is greater than the length of the power leg (112).

3. The mobile tire unloading device for a large-scale molding machine according to claim 2, characterized in that, It also includes a tire blank guard (7); the tire blank guard (7) is disposed on both sides of the first lifting platform (31), and the tire blank guard (7) is used to guide and limit the tire blank trolley (9).

4. A mobile tire unloading method for a large-scale molding machine as described in claim 3, characterized in that, Includes the following steps: S1. Adjust the tire removal ring group (1) and the tire embryo lifting group (3) to their initial state; S2. Drive several of the tiles (14) to move until they hug the embryo located at the forming station (4), and place the embryo trolley (9) on the first lifting platform (31). S3. Drive the tire unloading ring assembly (1) to move the tire blank from the forming station (4) in the horizontal direction to above the second lifting platform (32); S4. Control the first lifting platform (31) to descend to the preset low position; S5. Drive the ring (13) to flip through the rotating mechanism (12) until the embryo changes from a vertical state to a horizontal state; S6. The tire blank trolley (9) is transferred to the second lifting platform (32) by the transmission chain carrier (6) on the first lifting platform (31), and the second lifting platform (32) is controlled to rise to the tire receiving position. S7. Drive several of the tiles (14) to move and release the embryo until the embryo falls into the embryo trolley (9). S8. Control the second lifting platform (32) to descend, and transfer the tire carriage (9) to the third lifting platform (33) through the transmission chain carrier (6) on the second lifting platform (32), control the third lifting platform (33) to rise to the tire exit height, and output the tire carriage (9) from the third lifting platform (33); S9. Control the tire removal ring group (1), the ring body (13) and the tire embryo lifting group (3) to reset to the initial state.

5. The mobile tire unloading method for a large-scale molding machine according to claim 4, characterized in that, In step S1, the first lifting platform (31) is located at the highest point of its lifting stroke, the second lifting platform (32) and the third lifting platform (33) are located at the lowest point of their lifting stroke, and the tire unloading ring group (1) is located at the forming station (4).

6. The method for moving tire unloading for a large-scale molding machine according to claim 4, characterized in that, In step S2, the tire blank carriage (9) is guided and limited by the tire blank guard (7) to the center position of the first lifting platform (31).

7. The method for moving tire unloading for a large-scale molding machine according to claim 4, characterized in that, In step S8, after the embryo falls into the embryo trolley (9), the second lifting platform (32) is first controlled to descend to the lowest point of its lifting stroke, and then the embryo trolley (9) is transferred to the third lifting platform (33).

8. The mobile tire unloading method for a large-scale molding machine according to claim 4, characterized in that, In step S9, the reset to the initial state includes: controlling the ring body (13) to flip back to the vertical state; after the ring body (13) flips back to the vertical state, driving the tire unloading ring group (1) to return from the tire unloading station (5) to the forming station (4); at the same time, controlling the tire blank lifting group (3) to reset.

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