Central mechanism and tire vulcanization equipment

Abstract

The utility model belongs to the technical field of tire vulcanization equipment, and discloses a central mechanism and tire vulcanization equipment. The center mechanism comprises an upper ring, a lower ring, a capsule and a driving assembly, the upper ring and the lower ring are connected with the upper side and the lower side of the capsule respectively, and the driving assembly is used for driving the upper ring and the lower ring to move up and down. The driving assembly comprises an installation part and a center rod, the installation part is arranged on a frame body of the tire vulcanization equipment, the center rod is vertically arranged on the installation part in a sliding mode, and the upper side of the center rod is connected with the upper ring. The driving assembly further comprises a driving air cylinder, a bearing piece and an adapter piece, the driving air cylinder is arranged on the mounting piece, a piston rod of the driving air cylinder can extend downwards, the bearing piece is connected with the piston rod, and the bearing piece is connected with the lower ring through the adapter piece. The driving assembly further comprises a driving motor and a transmission part, the driving motor is arranged on the bearing part, and the driving motor drives the center rod to slide through the transmission part. Hydraulic oil or power water does not need to serve as a transmission medium, and the risk of oil leakage or water pollution is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanization equipment technology, and in particular to a central mechanism and tire vulcanization equipment. Background Technology

[0002] In the tire manufacturing industry, tire vulcanization is a key process that determines tire quality and performance. It uses specific temperature, pressure and time conditions to induce a cross-linking reaction in the rubber, thereby giving the tire the required physical and mechanical properties.

[0003] Currently, traditional central mechanisms mostly employ hydraulic or water cylinder drives. Hydraulic drives rely on hydraulic oil to transmit power, while water cylinder drives require additional water to power the central mechanism.

[0004] However, hydraulic drive carries the risk of hydraulic oil leakage. Leakage not only causes environmental pollution but can also lead to equipment malfunction and increased maintenance costs. While water-driven systems avoid oil pollution, they are bulky and require an additional power water supply system, similarly increasing the energy consumption and operating costs of the tire vulcanizing equipment. Furthermore, during long-term operation, the aging of vulnerable parts in the tire vulcanizing equipment further exacerbates the possibility of hydraulic oil leakage, thus affecting the normal operation of the equipment and reducing production efficiency.

[0005] Therefore, the above problems urgently need to be solved. Utility Model Content

[0006] The purpose of this utility model is to provide a central mechanism and tire vulcanizing equipment to eliminate the risk of oil leakage or water pollution, thereby conforming to the industry trend of tire vulcanizing equipment developing towards green and intelligent development.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A central mechanism includes an upper ring, a lower ring, a capsule, and a drive assembly. The upper ring and the lower ring are respectively connected to the upper and lower sides of the capsule. The drive assembly is used to drive the upper ring and the lower ring to move up and down.

[0009] The drive assembly includes a mounting component and a center rod. The mounting component is mounted on the frame of the tire vulcanizing equipment, and the center rod is vertically slidably mounted on the mounting component. The upper side of the center rod is connected to the upper ring.

[0010] The drive assembly further includes a drive cylinder, a carrier, and an adapter. The drive cylinder is mounted on the mounting component, and the piston rod of the drive cylinder can extend downward. The carrier is connected to the piston rod, and the carrier is connected to the lower ring through the adapter.

[0011] The drive assembly further includes a drive motor and a transmission component. The drive motor is mounted on the support component, and the drive motor drives the center rod to slide through the transmission component.

[0012] Preferably, the transmission component includes a ball screw, a screw nut, and a guide rod, wherein:

[0013] The ball screw is connected to the output shaft of the drive motor and is arranged in a vertical direction. The screw nut is threadedly engaged with the ball screw. The lower side of the center rod is connected to the screw nut. The guide rod is vertically arranged on the bearing member. The screw nut can slide along the guide rod.

[0014] Preferably, the central rod is hollow and is sleeved on the outer periphery of the ball screw with a clearance fit.

[0015] Preferably, the adapter is the guide rod, and the two ends of the guide rod are respectively connected to the carrier and the lower ring.

[0016] Preferably, the central mechanism further includes a heating element disposed inside the capsule, the heating element being configured to heat the medium inside the capsule.

[0017] Preferably, the central mechanism further includes a circulation element disposed inside the capsule, the circulation element being configured to drive the flow of the medium inside the capsule.

[0018] Preferably, the circulation component includes a fan and a rotating component that drives the fan to rotate. The rotating component is disposed on the mounting component and is used to drive the fan to rotate.

[0019] Preferably, the heating element is located on the suction side of the fan.

[0020] Preferably, the capsule includes an inlet and an outlet, with the inlet located on the suction side of the fan and the outlet located on the blowing side of the fan.

[0021] A tire vulcanizing apparatus includes a mold, a medium supply system, and a central mechanism. The medium supply system supplies a medium to the central mechanism, which injects the medium into a bladder to inflate the bladder and fit the tire blank into the cavity of the mold.

[0022] The beneficial effects of this utility model are:

[0023] 1. The drive component in the central mechanism provided by this utility model uses a drive cylinder and a drive motor as the power structure, eliminating the need for hydraulic oil or power water as the transmission medium, thus fundamentally eliminating the risk of oil leakage or water pollution, thereby conforming to the industry trend of tire vulcanizing equipment developing towards green and intelligent development.

[0024] 2. The drive cylinder and drive motor are integrated into the mounting component, resulting in a more compact structure compared to the bulky cylinder body and hydraulic station piping of traditional water cylinders. Furthermore, water cylinders require a larger cylinder diameter due to the low density of water, while air cylinders have a smaller piston area, allowing for a significantly smaller cylinder diameter for the same thrust. Simultaneously, the drive motor lacks easily damaged parts like hydraulic valve groups or water cylinder seals, and there is no valve jamming problem caused by oil contamination, significantly reducing equipment failure rates and substantially improving production efficiency. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the central mechanism provided by this utility model;

[0026] Figure 2 This is a structural schematic diagram of the drive motor, drive cylinder, load-bearing component, and transmission component provided by this utility model;

[0027] Figure 3 This is a structural schematic diagram of the heating element and the circulation element provided by this utility model.

[0028] In the picture:

[0029] 100. Mounting components; 1. Center rod; 2. Drive motor; 3. Drive cylinder; 4. Bearing components; 5. Transmission components; 51. Ball screw; 52. Screw nut; 53. Guide rod; 6. Heating components; 7. Circulation components; 71. Fan; 72. Rotating components. Detailed Implementation

[0030] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0031] In this application, the terms "comprising," "including," "having," 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0032] In this application, the term "and / or" describes a relationship between related objects, indicating that three relationships can exist. For example, a centrifugal vortex magnetic pump and / or a centrifugal vortex magnetic pump can represent: the existence of only one centrifugal vortex magnetic pump, the simultaneous existence of one centrifugal vortex magnetic pump and a centrifugal vortex magnetic pump, or the existence of only one centrifugal vortex magnetic pump. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0033] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0034] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0035] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0036] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0037] Please see Figures 1 to 3 This embodiment provides a central mechanism, which includes an upper ring, a lower ring, a capsule, and a drive assembly. The upper ring and the lower ring are respectively connected to the upper and lower sides of the capsule, and the drive assembly is used to drive the upper ring and the lower ring to move up and down.

[0038] Specifically, the drive assembly includes a mounting component 100 and a center rod 1. The mounting component 100 is mounted on the frame of the tire vulcanizing equipment, and the center rod 1 is vertically slidably mounted on the mounting component 100. The upper side of the center rod 1 is connected to the upper ring. The drive assembly also includes a drive cylinder 3, a support component 4, and an adapter. The drive cylinder 3 is mounted on the mounting component 100, and its piston rod can extend downwards. The support component 4 is connected to the piston rod and is connected to the lower ring via the adapter. The drive assembly also includes a drive motor 2 and a transmission component 5. The drive motor 2 is mounted on the support component 4, and drives the center rod 1 to slide via the transmission component 5.

[0039] With this configuration, the drive motor 2 converts the rotational motion into the vertical sliding motion of the central rod 1 via the transmission component 5. Since the upper side of the central rod 1 is rigidly connected to the upper ring, the forward and reverse rotation of the drive motor 2 precisely controls the rise or fall of the upper ring, thereby adjusting the position of the upper end of the capsule. Furthermore, the piston rod of the drive cylinder 3 is connected downwards to the support component 4, which is connected to the lower ring via an adapter. The extension and retraction of the cylinder piston rod directly drives the support component 4 and the lower ring to move up and down, thus precisely controlling the rise or fall of the lower ring.

[0040] When incorporated into the tire vulcanization process, the specific steps are as follows:

[0041] Before the capsule expands, the piston rod of the drive cylinder 3 extends, pushing the carrier 4 and the lower ring connected to it to rise to the preset position. At the same time, the drive motor 2 controls the upper ring to descend, so that the upper and lower ends of the capsule are close together, thereby enabling the capsule to expand to fit the blank into the mold cavity.

[0042] After the capsule contracts, the drive motor 2 drives the upper ring to rise, while the cylinder piston rod retracts and pulls the lower ring down. The capsule contracts due to the opposite movement of the upper and lower ends, thereby removing the vulcanized tire from the mold.

[0043] Understandably, the drive assembly uses a drive cylinder 3 and a drive motor 2 as the power structure, eliminating the need for hydraulic oil or power water as the transmission medium. This fundamentally eliminates the risk of oil leakage or water pollution, thus conforming to the industry trend of tire vulcanizing equipment moving towards green and intelligent development.

[0044] It is also understandable that the drive cylinder 3 and drive motor 2 are integrated on the mounting component 100, resulting in a more compact structure compared to the bulky cylinder body and hydraulic station piping of traditional water cylinders. Furthermore, water cylinders require a larger cylinder diameter due to the low density of water, while air cylinders have a smaller piston area, allowing for a significantly smaller cylinder diameter for the same thrust. Simultaneously, the drive motor 2 does not contain easily damaged parts such as hydraulic valve groups or water cylinder seals, and there is no valve jamming problem caused by oil contamination, significantly reducing equipment failure rates and substantially improving production efficiency.

[0045] It should be noted that the specific models of the drive cylinder 3 and drive motor 2 can be selected according to the actual application scenario. Among them, the drive motor 2 is preferably a servo motor, and the drive cylinder 3 is preferably a drive cylinder 3 with a displacement sensor, so as to realize closed-loop control of the upper ring and the lower ring respectively, provide real-time feedback of position and speed, and coordinate with the control system to accurately adjust the movement of the two, thereby accurately controlling the capsule, avoiding the defects of traditional drive, and meeting the requirements of green development.

[0046] To ensure transmission accuracy, the transmission component 5 includes a ball screw 51, a screw nut 52, and a guide rod 53. The ball screw 51 is connected to the output shaft of the drive motor 2 and is arranged vertically. The screw nut 52 is threadedly engaged with the ball screw 51. The lower side of the center rod 1 is connected to the screw nut 52. The guide rod 53 is vertically arranged on the bearing component 4, and the screw nut 52 can slide along the guide rod 53. In this embodiment, two guide rods 53 are arranged opposite each other to guide the opposite sides of the screw nut 52, thereby improving the stability of the movement of the screw nut 52.

[0047] Understandably, the mechanical transmission structure using ball screw 51 and screw nut 52 eliminates the need for hydraulic oil or power water as the transmission medium, fundamentally avoiding liquid leakage problems. The engagement between guide rod 53 and screw nut 52 involves only a rigid connection of mechanical components, eliminating the risk of seal wear and reducing maintenance costs and downtime frequency caused by leakage.

[0048] It is also understandable that the ball screw 51 is directly connected to the output shaft of the drive motor 2 in the vertical direction, resulting in a simple structural layout and occupying less space compared to a water cylinder or hydraulic system. The guide rod 53, in conjunction with the screw nut 52, can limit radial displacement, ensuring that the center rod 1 slides precisely in the vertical direction. This avoids the action deviation caused by component shaking or the characteristics of the liquid medium in traditional drive methods. High-precision transmission can ensure synchronous movement of the upper and lower rings, thereby improving the stability of bladder shrinkage and tire demolding, and indirectly improving the accuracy of the vulcanization process.

[0049] It should be noted that the transmission component 5 can also adopt a gear and rack transmission structure, a worm gear transmission structure, or other transmission structures. The following is a brief description using a gear and rack transmission structure as an example: the output shaft of the drive motor 2 is connected to a driving gear (helical or spur gear), which meshes with a vertically arranged rack, and works with a linear guide rail to limit the radial displacement of the center rod 1. When the motor rotates, the gear drives the rack to move up and down, realizing the lifting and lowering of the upper ring. Its advantages are high transmission efficiency and simple structure, making it suitable for high-speed, light-load scenarios (such as rapid demolding). The specific structure of the transmission component 5 can be selected according to the actual application scenario; this embodiment does not impose specific requirements or limitations on this.

[0050] To improve transmission efficiency and reduce energy consumption, the center rod 1 is hollow and is fitted around the outer periphery of the ball screw 51 with a clearance fit. The hollow structure of the center rod 1, by removing redundant material at its center, significantly reduces the mass of moving parts while maintaining structural strength. This helps reduce the load torque on the drive motor 2, especially reducing motor power loss during high-speed demolding.

[0051] More importantly, impurities such as rubber debris and water vapor that may be generated during the vulcanization process will be blocked by the outer wall of the center rod 1, thereby preventing impurities from directly contacting the threads of the ball screw 51. Especially in the high temperature and high humidity vulcanization environment, this can reduce the frequency of contamination failure of the ball screw 51 grease, thus helping to extend the service life of the center mechanism.

[0052] In this embodiment, the adapter is a guide rod 53, and both ends of the guide rod 53 are connected to the bearing member 4 and the lower ring, respectively. With this configuration, the guide rod 53 simultaneously performs the dual functions of "motion guidance" and "force transmission and transfer," thereby reducing the number of parts through structural reuse, making the drive assembly more compact and reducing the cost of use.

[0053] To further shorten the vulcanization cycle, the central mechanism also includes a heating element 6 disposed inside the capsule. The heating element 6 is configured to heat the medium inside the capsule. Traditional heating processes typically heat the medium before supplying it into the capsule. Compared to traditional external heating methods, with the heating element 6 embedded inside the capsule, it can directly contact the medium, thereby significantly increasing the heating rate of the medium and avoiding the prolonged vulcanization cycle caused by temperature lag in traditional external heating methods.

[0054] More importantly, combined with the optimization of the drive components mentioned above, the optimization of the drive components and the built-in heating element 6 do not have an independent effect on shortening the vulcanization time. Instead, they work together to accelerate the process through the dual acceleration of improved mechanical efficiency and optimized process temperature control, resulting in a systematic compression of the vulcanization cycle.

[0055] It should be noted that the heating element 6 can be any component with heating function, such as an electric heating tube or heating wire, which is available in the prior art, and is preferably a spiral coil heating tube.

[0056] Specifically, the central mechanism also includes a circulation element 7 disposed inside the capsule, which is configured to drive the medium to flow inside the capsule. It is understood that by driving the medium through the circulation element 7 to form a spiral or turbulent flow field, the temperature distribution inside the capsule is made more uniform, thereby avoiding the "over-sulfurization at the edges / under-sulfurization at the center" defects commonly found in traditional static heating.

[0057] Specifically, the circulation component 7 includes a fan 71 and a rotating component 72 that drives the fan 71 to rotate. The rotating component 72 is disposed on the mounting component 100 and is used to drive the fan 71 to rotate. It is understood that the fan 71 generates directional airflow by rotating, forming a spiral or axial circulating flow field within the capsule. Compared to irregular turbulence, this increases the medium flow velocity and thus increases the heat exchange area. In this embodiment, the fan 71 is preferably a turbofan.

[0058] It should be noted that the rotating component 72 can be a micro motor and directly mounted on the mounting component 100 to shorten the power transmission path and improve transmission efficiency, which will not be described in detail here.

[0059] It is worth noting that the suction side of the fan 71 actively draws the medium through the heating element 6, forming forced convection. Therefore, in this embodiment, the heating element 6 is located on the suction side of the fan 71, which allows the medium to have more sufficient contact with the heating element 6 in the flowing state. The heat transfer efficiency is much higher than that of natural convection, and the heat generated by the heating element 6 can be quickly and evenly diffused into the capsule, shortening the overall heating time.

[0060] Furthermore, the capsule includes an inlet and an outlet. The inlet is located on the suction side of fan 71, and the outlet is located on the blowing side of fan 71. Understandably, a negative pressure area exists on the suction side of fan 71. With the inlet located here, the medium can be actively drawn in by the suction effect of fan 71, without relying on the medium's own pressure or gravity, significantly reducing flow resistance at the inlet end. In contrast, if the inlet were located on the blowing side (positive pressure area), the medium might flow slowly due to the smaller pressure difference.

[0061] This embodiment also provides a tire vulcanizing device, which includes a mold, a medium supply system, and the aforementioned central mechanism. The medium supply system is used to supply medium to the central mechanism, which can inject the medium into the bladder to cause the bladder to expand and fit the tire blank into the cavity of the mold.

[0062] Understandably, tire vulcanizing equipment, including the aforementioned central facilities, fundamentally eliminates the risk of oil leakage or water pollution, thus aligning with the industry trend of greening and intelligent development of tire vulcanizing equipment.

[0063] It should be noted that the mold and the medium supply system are existing technologies, and no improvements are made in this embodiment, so they will not be described in detail.

[0064] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A central mechanism comprising an upper ring, a lower ring, a capsule, and a drive assembly, wherein the upper ring and the lower ring are respectively connected to the upper and lower sides of the capsule, and the drive assembly is used to drive the upper ring and the lower ring to move up and down, characterized in that, The drive assembly includes a mounting part (100) and a center rod (1). The mounting part (100) is mounted on the frame of the tire vulcanizing equipment. The center rod (1) is vertically slidably mounted on the mounting part (100). The upper side of the center rod (1) is connected to the upper ring. The drive assembly also includes a drive cylinder (3), a support member (4), and a connector. The drive cylinder (3) is mounted on the mounting member (100). The piston rod of the drive cylinder (3) can extend downward. The support member (4) is connected to the piston rod. The support member (4) is connected to the lower ring through the connector. The drive assembly also includes a drive motor (2) and a transmission component (5). The drive motor (2) is mounted on the support component (4). The drive motor (2) drives the center rod (1) to slide through the transmission component (5).

2. A central agency according to claim 1, characterized in that The transmission component (5) includes a ball screw (51), a screw nut (52), and a guide rod (53), wherein: The ball screw (51) is connected to the output shaft of the drive motor (2) and is arranged in a vertical direction. The screw nut (52) is threadedly engaged with the ball screw (51). The lower side of the center rod (1) is connected to the screw nut (52). The guide rod (53) is vertically arranged on the bearing member (4). The screw nut (52) can slide along the guide rod (53).

3. A central mechanism according to claim 2, wherein, The central rod (1) is hollow and is sleeved on the outer periphery of the ball screw (51) with clearance fit.

4. A central mechanism according to claim 3, wherein, The adapter is the guide rod (53), and the two ends of the guide rod (53) are respectively connected to the bearing (4) and the lower ring.

5. A central mechanism according to claim 1, wherein, The central mechanism also includes a heating element (6) disposed inside the capsule, the heating element (6) being configured to heat the medium inside the capsule.

6. A central mechanism according to claim 5, wherein, The central mechanism also includes a circulation element (7) disposed inside the capsule, the circulation element (7) being configured to drive the flow of the medium inside the capsule.

7. A central mechanism according to claim 6, wherein The circulation component (7) includes a fan (71) and a rotating component (72) for driving the fan (71) to rotate. The rotating component (72) is disposed on the mounting component (100) and is used to drive the fan (71) to rotate.

8. A central agency according to claim 7, characterised in that The heating element (6) is located on the suction side of the fan (71).

9. A central agency according to claim 8, characterised in that The capsule includes an inlet and an outlet, the inlet being located on the suction side of the fan (71) and the outlet being located on the blowing side of the fan (71).

10. A tire vulcanizing equipment, characterized in that, The tire vulcanization apparatus comprises a mold, a medium supply system for supplying a medium to the central mechanism, and the central mechanism according to any one of claims 1-9, which is capable of injecting the medium into the bladder to inflate the bladder and adhere the green tire to the cavity of the mold.

Images