Center air inlet tire vulcanization equipment

Abstract

The utility model provides center air inlet tire vulcanization equipment, which belongs to the technical field of tire manufacturing, an upper clamping edge and a lower clamping edge of a vulcanization capsule are respectively clamped by an upper clamping component and a lower clamping component, the upper end of a center rod is fixedly connected with the upper clamping component, a heating device and a stirrer are arranged in the vulcanization capsule, and the center rod is arranged in the vulcanization capsule. The rotary driving device is connected with the stirring device; the lifting driving device is connected with the center rod; a first gas channel is arranged in the center rod, and at least one ventilation opening is formed in the part, located in the curing bladder, of the center rod; the first gas channel is arranged in the center rod, complex pipeline design is omitted, and the size of the center mechanism of the vulcanization equipment is reduced.

Description

Technical Field

[0001] This application belongs to the field of tire manufacturing technology, and specifically relates to a vulcanizing device for center-intake tires that performs vulcanization treatment on tires. Background Technology

[0002] Vulcanization is widely used in industrial production. Through vulcanization, the overall hardness of certain materials can be increased, such as the hardness of rubber. Rubber is one of the main materials used in tire manufacturing. Before vulcanization, the rubber-supported tire is a viscoelastic, malleable rubber that is easily deformed and has low strength. After vulcanization, the rubber hardens and acquires higher strength and elasticity.

[0003] Traditional tire vulcanization processes typically employ a combination of saturated steam and nitrogen. The process is as follows: First, the unvulcanized green tire is placed between a sealed vulcanizing bladder and a vulcanizing mold. Then, saturated steam is introduced into the vulcanizing bladder, providing the heat required for vulcanization. Next, high-pressure nitrogen is introduced to provide the necessary pressure for vulcanization. Under the combined heat of the saturated steam and the pressure of the nitrogen, the vulcanizing bladder expands, compresses, and heats the green tire, thus shaping and vulcanizing it.

[0004] One problem that arises during the operation of a steam vulcanizing machine is that the steam entering the vulcanizing bladder condenses. The condensate accumulates at the bottom of the vulcanizing bladder, creating a significant temperature difference between the upper and lower parts, which in turn affects the vulcanization effect of the tire. Furthermore, supplying steam to the vulcanizing bladder requires the installation of steam pipelines, which occupy considerable space.

[0005] To address these issues with steam vulcanizing machines, existing technologies have proposed electric vulcanizing systems. These systems include heating and ventilation devices to heat the gaseous medium within a sealed chamber. Furthermore, the electric vulcanizing system also includes an agitator, such as a fan or impeller, driven by a motor or other mechanism to force the flow of the heated gaseous medium. In existing electric vulcanizing systems, the sealed chamber is filled with the gaseous medium, and the motor, agitator, heating device, and other components are all located within this sealed chamber. Therefore, to introduce the gaseous medium into the vulcanizing capsule and recover it after vulcanization, corresponding piping needs to be arranged at the central mechanism of the vulcanizing machine. However, the central mechanism of the vulcanizing machine has limited space and requires the installation of motors, cylinders, and other devices, presenting a challenge in piping arrangement. Utility Model Content

[0006] To solve the above-mentioned technical problems, this disclosure provides a center-intake tire vulcanization apparatus, comprising:

[0007] A vulcanized capsule, wherein the lower edge of the vulcanized capsule is held by a lower clamping component, and the upper edge of the vulcanized capsule is held by an upper clamping component;

[0008] A central rod, the upper end of which is fixedly connected to the upper clamping assembly, and the central rod is configured to move relative to the lower clamping assembly in the vertical direction;

[0009] A heating device is disposed inside the vulcanizing capsule and is used to heat the gas medium inside the vulcanizing capsule;

[0010] A stirring device is disposed in the vulcanizing capsule for stirring the flow of the gas medium;

[0011] A rotary drive device, which is connected to the agitator and is capable of driving the agitator to rotate;

[0012] A lifting drive device is connected to the center rod and is capable of driving the center rod to rise and fall.

[0013] The central rod has a first gas channel inside, and the portion of the central rod located inside the vulcanizing capsule has at least one vent.

[0014] In one alternative implementation, the first gas passage extends along the axis of the central rod.

[0015] In one optional embodiment, the lifting drive device includes a drive cylinder, a drive rod is disposed inside the drive cylinder, the upper end of the drive rod is connected to the lower end of the center rod, and a second gas channel is disposed inside the drive rod, the second gas channel being in communication with the first gas channel.

[0016] In one optional embodiment, a first sealing portion is provided between the upper end of the drive rod and the lower end of the center rod.

[0017] In one optional embodiment, the lifting drive device is disposed on the outer periphery of the central rod, and the lifting drive device is connected to the central rod via a connecting component.

[0018] In one optional implementation, multiple lifting drive devices are provided, and the multiple lifting drive devices are arranged circumferentially on the outer periphery of the central rod.

[0019] An optional embodiment further includes a support ring cylinder and a rotating cylinder, wherein a ring seat is fixedly connected to the upper end of the support ring cylinder, and a heating device is provided on the ring seat;

[0020] One end of the rotating drum is located inside the supporting ring cylinder, and the other end of the rotating drum passes through the inner hole of the ring seat and is connected to the stirring device. A first bearing is provided between the rotating drum and the inner hole of the ring seat, and / or a second bearing is provided between the rotating drum and the supporting ring cylinder.

[0021] The central rod passes through the rotating drum.

[0022] In one optional embodiment, a second sealing part is provided between the rotating cylinder and the ring seat, and a third sealing part is also provided between the rotating cylinder and the supporting ring cylinder, wherein the first bearing and / or the second bearing are located between the second sealing part and the third sealing part.

[0023] In one optional embodiment, a fourth sealing portion is provided between the central rod and the support ring cylinder.

[0024] In one optional embodiment, a rotation drive device is provided on the support ring cylinder.

[0025] The technical solution provided by this utility model has the following advantages compared with the prior art:

[0026] A first gas channel is set inside the central rod, eliminating the need for complex pipeline design and reducing the volume of the central mechanism of the vulcanizing equipment. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in 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 utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the first embodiment of the center-intake tire vulcanization equipment of this utility model;

[0029] Figure 2 yes Figure 1 A schematic diagram of the structure at point A;

[0030] Figure 3 yes Figure 1 A schematic diagram of the structure at point B;

[0031] Figure 4 This is a schematic diagram of the overall structure of a second embodiment of a center-intake tire vulcanization device of this utility model;

[0032] Figure 5 This is a schematic diagram of the overall structure of the third embodiment of the central air intake tire vulcanization equipment of this utility model.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1-Vulcanizing capsule, 2-Lower clamping assembly, 3-Upper clamping assembly, 4-Vulcanizing mold, 5-Center rod, 6-Heating device, 7-Ring seat, 8-Supporting ring cylinder, 9-Rotating cylinder, 10-Stirring device, 11-Rotation drive device, 12-Support frame, 13-First gas channel, 14-Ventilation port, 15-Lifting drive device, 16-Drive rod, 17-Drive cylinder, 18-Second gas channel, 19-First sealing part, 20-First bearing, 21-Second bearing, 22-Second sealing part, 23-Third sealing part, 24-Fourth sealing part, 25-Connecting component. Detailed Implementation

[0035] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0040] Please refer to Figures 1-3The present invention provides a center-intake tire vulcanization device, including a vulcanization capsule 1, a lower clamping assembly 2, an upper clamping assembly 3, a vulcanization mold 4, and a center rod 5, etc.

[0041] The lower clamping component 2 clamps the lower edge of the vulcanizing capsule 1, and the upper clamping component 3 clamps the upper edge of the vulcanizing capsule 1. This creates a closed space within the vulcanizing capsule 1, which can be filled with a gaseous medium such as pressurized nitrogen. The gaseous medium then heats and pressurizes the inside of the tire to be vulcanized, which is wrapped around the vulcanizing capsule 1. Other inert gases can also be used, but nitrogen is a preferred example considering cost and other factors.

[0042] The vulcanizing mold 4 covers the tire from the outside. A heating device 6, such as an electric heater, is also provided in the vulcanizing mold 4, allowing the tire to be heated from the outside. The vulcanizing mold 4 is an openable mold, comprising an upper mold and a lower mold.

[0043] The upper end of the central rod 5 is fixedly connected to the upper clamping assembly 3. The central rod 5 can move vertically relative to the lower clamping assembly 2, thereby achieving the contraction and expansion of the vulcanizing capsule 1. Specifically, when the central rod 5 moves upward, the distance between the lower clamping assembly 2 and the upper clamping assembly 3 increases, thus reducing the radius of the vulcanizing capsule 1 and causing it to contract. When the central rod 5 moves downward, the distance between the lower clamping assembly 2 and the upper clamping assembly 3 decreases, increasing the radius of the vulcanizing capsule 1. After the vulcanizing capsule 1 is filled with a gaseous medium, it expands. During the vulcanization process, the tire to be vulcanized is first placed on the vulcanizing capsule 1, and then the central rod 5 descends, causing the vulcanizing capsule 1 to expand, thus tightly wrapping the tire around the vulcanizing capsule 1. The tire vulcanizing equipment also includes a ring seat 7, with the lower clamping assembly 2 installed on the outer circumference of the ring seat 7, which has an inner hole. A supporting ring cylinder 8 is fixedly installed at the lower end of the ring seat 7. A rotating cylinder 9 is installed inside the supporting ring cylinder 8. One end of the rotating cylinder 9 passes through the inner hole of the ring seat 7 and is connected to the stirring device 10. The rotating cylinder 9 is connected to the rotation drive device 11. The central rod 5 passes through the rotating cylinder 9 and enters the vulcanizing capsule 1.

[0044] A heating device 6 and an agitator 10 are also provided inside the vulcanizing capsule 1. The heating device 6 is preferably fixedly mounted on the ring seat 7 and axially spaced from the agitator 10, for example, positioned above the agitator 10. The heating device 6 can be, for example, an electric heating device 6, used to heat the gaseous medium in the vulcanizing capsule 1, such as pressurized nitrogen. The agitator 10 can be, for example, a fan, an impeller, etc., and by rotating the agitator 10, the gaseous medium in the vulcanizing capsule 1 is circulated, which helps to make the temperature of the gaseous medium in the vulcanizing capsule 1 uniform.

[0045] The rotary drive device 11 is preferably an electric motor. For example, the end of the rotating drum 9 away from the agitator 10 is connected to the motor, and the rotating drum 9 is connected to the rotor of the motor. The connection between the rotating drum 9 and the rotor can be direct or indirect. For example, the rotating drum 9 and the rotor are driven by magnetic components, with non-contact magnetic components provided on both the rotor and the rotating drum 9, and the motor rotor drives the rotating drum 9 to rotate by magnetic force. And / or, the connection between the rotating drum 9 and the agitator 10 can be direct or indirect. For example, the rotating drum 9 and the agitator 10 are driven by magnetic components, with non-contact magnetic components provided on both the agitator 10 and the rotating drum 9, and the rotating drum 9 drives the agitator 10 to rotate by magnetic force. The motor can be mounted on the support ring 8. A support frame 12 is provided on the ring seat 7, and a heating device 6 is provided on the support frame 12. The heating device 6 can be an induction heating device 6 or a resistance heating device 6. The heating device 6 is located axially above the agitator 10 and has a channel for the gas medium to flow through it. The central rod 5 has an axially oriented first gas channel 13, and the portion of the central rod 5 located inside the vulcanizing capsule 1 has at least one vent 14 connecting the inner cavity of the vulcanizing capsule 1 with the first gas channel 13. The lower end of the central rod 5 is connected to the lifting drive device 15.

[0046] In one optional embodiment, the lifting drive device 15 includes a drive rod 16 located within a drive cylinder 17, with the lower end of a central rod 5 connected to the drive rod 16. A second gas passage 18 is provided within the drive rod 16, and a first gas passage 13 communicates with the second gas passage 18. The drive rod 16 penetrates the cylinder, and the second gas passage 18 axially penetrates the drive rod 16, meaning the drive rod 16 is an axially penetrating hollow tubular structure. Furthermore, to ensure sealing, the central rod 5 and the drive rod 16 are sealed together, for example, by providing a first sealing part 19 between the central rod 5 and the drive rod 16, or by providing a sealing ring between the central rod 5 and the drive rod 16. A raised ring is provided at the end where the central rod 5 and the drive rod 16 are connected, and the two are fixedly connected using clamps or other components. The cylinder is fixedly mounted on a support ring cylinder 8.

[0047] A first bearing 20 is installed between the upper end of the rotating drum 9 and the inner hole of the ring seat 7. Furthermore, a second bearing 21 is installed between the lower end of the rotating drum 9 and the supporting ring cylinder 8. These two sets of bearings guide the rotating drum 9, improving its operational stability. A second sealing part 22 is installed between the rotating drum 9 and the ring seat 7, for example, a labyrinth seal. A third sealing part 23 is also installed between the rotating drum 9 and the supporting ring cylinder 8, for example, a sealing ring. The first bearing 20 and the second bearing 21 are preferably located between the second and third sealing elements, forming a sealed space between the supporting ring cylinder 8, the ring seat 7, and the rotating drum 9. This reduces the thermal impact of the high-temperature, high-pressure gas medium on the bearing chamber and prevents the gas medium from impacting the lubricating grease inside the bearing chamber or introducing impurities, thus improving the service life and stability of the vulcanizing equipment.

[0048] Furthermore, a fourth sealing part 24 is provided between the central rod 5 and the support ring cylinder 8. For example, a sealing element can be provided between the central rod 5 and the support ring cylinder 8. The fourth sealing part 24, together with the second sealing part 22 and the third sealing part 23, ensures the sealing of the inner cavity of the vulcanizing capsule 1 and prevents leakage of gaseous medium.

[0049] Please refer to Figure 4 and Figure 5 The lifting drive device 15 can also have other structural forms. The lifting drive device 15 is located on the outer periphery of the central rod 5, and multiple lifting drive devices 15 can be provided, specifically including pneumatic cylinders, electric cylinders, hydraulic cylinders, etc. The drive end of the lifting drive device 15 is connected to the central rod 5 via a connecting component 25. The connecting component 25 can be a connecting plate. The lifting drive device 15 can be fixed to the supporting ring cylinder 8, or it can be fixed to the bottom of the ring seat 7.

[0050] During the vulcanization process, the tire is loaded onto the vulcanizing bladder 1 from the outside, and then the vulcanizing mold 4 is closed, thus clamping the tire in the vulcanization space between the vulcanizing bladder 1 and the vulcanizing mold 4. Pressurized nitrogen gas is injected into the closed space inside the vulcanizing bladder 1 through the first gas channel 13 and heated by the heating device 6. This heated and pressurized nitrogen gas heats and pressurizes the tire from the inside through the vulcanizing bladder 1, while the mold heats and pressurizes the tire from the outside. This application sets the first gas channel 13 inside the central rod 5, eliminating the complex pipeline design, conserving space, and reducing the volume of the central mechanism of the vulcanization equipment.

[0051] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A center-intake tire vulcanizing device, characterized in that, include: A vulcanized capsule (1), wherein the lower edge of the vulcanized capsule (1) is held by a lower clamping assembly (2) and the upper edge of the vulcanized capsule (1) is held by an upper clamping assembly (3); A central rod (5), the upper end of which is fixedly connected to the upper clamping assembly (3), and the central rod (5) is configured to move in the vertical direction relative to the lower clamping assembly (2); A heating device (6) is disposed inside the vulcanizing capsule (1) for heating the gas medium in the vulcanizing capsule (1); A stirring device (10) is disposed in the vulcanizing capsule (1) for stirring the flow of the gas medium; A rotary drive device (11) is connected to the agitator (10) and is capable of driving the agitator (10) to rotate; A lifting drive device (15) is connected to the center rod (5) and can drive the center rod (5) to rise and fall. The central rod (5) is provided with a first gas channel (13), and the portion of the central rod (5) located inside the vulcanizing capsule (1) is provided with at least one vent (14).

2. The center-intake tire vulcanizing equipment according to claim 1, characterized in that, The first gas passage (13) extends along the axis of the central rod (5).

3. The center-intake tire vulcanizing equipment according to claim 1, characterized in that, The lifting drive device (15) includes a drive cylinder (17), and a drive rod (16) is provided inside the drive cylinder (17). The upper end of the drive rod (16) is connected to the lower end of the center rod (5). A second gas channel (18) is provided inside the drive rod (16), and the second gas channel (18) is connected to the first gas channel (13).

4. The center-intake tire vulcanizing equipment according to claim 3, characterized in that, A first sealing part (19) is provided between the upper end of the drive rod (16) and the lower end of the center rod (5).

5. The center-intake tire vulcanizing equipment according to claim 1, characterized in that, The lifting drive device (15) is located on the outer periphery of the center rod (5), and the lifting drive device (15) is connected to the center rod (5) through the connecting component (25).

6. The center-intake tire vulcanizing equipment according to claim 5, characterized in that, Multiple lifting drive devices (15) are provided, and multiple lifting drive devices (15) are arranged circumferentially on the outer periphery of the central rod (5).

7. The center-intake tire vulcanizing equipment according to claim 1, characterized in that, It also includes a support ring cylinder (8) and a rotating cylinder (9). The upper end of the support ring cylinder (8) is fixedly connected to a ring seat (7), and a heating device (6) is provided on the ring seat (7). One end of the rotating drum (9) is located inside the supporting ring cylinder (8), and the other end of the rotating drum (9) passes through the inner hole of the ring seat (7) and is connected to the stirring device (10). A first bearing (20) is provided between the rotating drum (9) and the inner hole of the ring seat (7), and / or a second bearing (21) is provided between the rotating drum (9) and the supporting ring cylinder (8). The central rod (5) passes through the rotating cylinder (9).

8. The center-intake tire vulcanizing equipment according to claim 7, characterized in that, A second sealing part (22) is provided between the rotating cylinder (9) and the ring seat (7), and a third sealing part (23) is also provided between the rotating cylinder (9) and the supporting ring cylinder (8). The first bearing (20) and / or the second bearing (21) are located between the second sealing part (22) and the third sealing part (23).

9. The center-intake tire vulcanizing equipment according to claim 7, characterized in that, A fourth sealing part (24) is provided between the central rod (5) and the supporting ring cylinder (8).

10. The center-intake tire vulcanizing equipment according to claim 7, characterized in that, A rotary drive device (11) is provided on the support ring cylinder (8).

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