Patent Description:
In industrial production, vulcanizing is often used to increase the overall hardness of certain materials.

Taking tire vulcanizing as an example, tire vulcanizing refers to the vulcanizing of the outer tire, which is vulcanized by mold pressurization. Before vulcanizing, the tire is a plastic rubber with viscoelasticity, which is easy to deform, has low strength, and has no use value. After vulcanizing, the plastic rubber is cured and becomes a high-elastic rubber with use value.

A conventional tire vulcanizing process uses a combination of saturated steam and nitrogen. Particularly, the raw tire is placed between a sealed vulcanizing bladder <NUM> and a vulcanizing mold, and saturated steam is introduced into the vulcanizing bladder <NUM> to provide the heat required for vulcanizing, and then high-pressure nitrogen is introduced to provide the pressure required for vulcanizing, and the vulcanizing bladder <NUM> expands and squeezes the raw tire, and cooperates with the vulcanizing machine to shape and vulcanize the raw tire to improve the strength of the tire. However, the steam may condense when it gets cold, creating condensed water accumulating at lower portion of the vulcanizing bladder <NUM>, resulting in a large temperature difference between the upper and lower portions of the vulcanizing bladder <NUM>, which will lead to the defect of incomplete vulcanizing of the tire. Further, steam pipelines will occupy a lot of space.

A tire vulcanizing equipment is provided in the prior art. As shown in <FIG>, a heating assembly <NUM> is provided in the vulcanizing bladder <NUM> to directly heat the nitrogen gas so as to replace the saturated steam with the heated nitrogen gas, and a gas circulation assembly <NUM> is arranged in the vulcanizing bladder <NUM> to make the temperature distribution in the vulcanizing bladder <NUM> uniform. However, in the solution provided in the prior art, the heating assembly <NUM> and the gas circulation assembly <NUM> are arranged to be radially distributed in the vulcanizing bladder <NUM>, that is, as shown in <FIG>, the heating assembly <NUM> and the gas circulation assembly <NUM> are arranged horizontally, resulting in excessive radial space occupation inside the vulcanizing bladder <NUM>. The radial space inside the vulcanized tire must be larger than the coverage of the horizontally arranged heating assembly <NUM> and gas circulation assembly <NUM>, to guarantee normal vulcanizing processing, as a result of which the horizontally arranged equipment limits the processing specifications of vulcanized tires and is not suitable for processing tires with small inner diameters, and the horizontally arranged equipment is likely to hinder the flow of air in the vulcanizing bladder <NUM> along the horizontal direction, which is not beneficial to the gas circulation in the vulcanizing bladder <NUM>.

Patent document <CIT> discloses vulcanising equipment having similar features to those of the preamble of independent claim <NUM>.

Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the equipment with a vulcanizing bladder horizontally arranged occupies too much space, which limits the processing specifications of vulcanized tires, and is not beneficial to the gas circulation in the vulcanizing bladder.

To this end, the present invention provides vulcanizing equipment according to independent claim <NUM>.

Optionally, the gas circulation assembly comprises:
a venting member connected to the rotating shaft sleeve.

Optionally, the venting member is an open impeller, and the gas circulation assembly further comprises:.

Optionally, the venting member is a closed impeller and has an air channel at which a diffuser is arranged.

Optionally, the heating assembly comprises a bracket and a heater arranged on the bracket, the bracket being arranged on the guide ring, and the heater being formed with a ventilation portion in a vertical direction.

Optionally, the heater is a heating coil.

Optionally, the sleeve being installed on the guide ring.

Optionally, the heating assembly comprises a bracket and a heater arranged on the bracket, wherein a support body is arranged on the outer peripheral side of the closed impeller, the bracket and the sleeve being arranged on the support body.

Optionally, the clamping device comprises:.

A lower pressing ring is arranged between the lower clamping ring and the vulcanizing mold, and an upper pressing ring is arranged between the upper clamping ring and the vulcanizing mold.

Optionally, the driving assembly further comprises a transmission member acting between the rotating shaft sleeve and a driving motor;
the rotating shaft sleeve is arranged at outside of the center rod in a clearance fit manner.

Optionally, the transmission member is a gear pair comprising:.

Optionally, a wire-passing pipeline is provided on the ring seat, and a through hole is provided on the guide ring, and a wire is connected to the heating assembly through the wire-passing pipeline and the through hole.

The technical solution of the present invention has the following advantages:.

The ring seat is provided with a wire-passing pipeline, and the guide ring is provided with a through hole, which facilitates in passing a wire, and is suitable for connecting an external power supply device with a heating assembly to provide heating power for the heater.

In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present invention, accompanying drawings that need to be used in the description of the specific embodiments or prior art are briefly described in the following. It is obvious that the accompanying drawings in the following description are some of the embodiments of the present invention, and that other drawings can be obtained on the basis of these accompanying drawings without any creative work for those skilled in the art.

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts fall into the protection scope of the present invention.

In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like are based on the orientation or positional relationships shown in the accompanying drawings and are intended only to facilitate and simplify the description of the invention instead of indicating or implying that the device or element referred to must have a particular orientation, must be constructed and operate in a particular orientation, and therefore are not to be construed as limiting the invention. Furthermore, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise expressly specified and limited, the terms "mount", "connect", "couple" shall be understood in a broad sense. For example, it can be a fixed connection, a removable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection within two elements. Those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In addition, the technical features involved in different embodiments of the invention described below can be combined with each other as long as they do not conflict to each other.

This embodiment provides a vulcanizing equipment, as shown in <FIG>. In industrial production, vulcanizing is usually used to increase the overall hardness of certain materials. Taking tire vulcanizing as an example, tire vulcanizing refers to the vulcanizing of the outer tire, which is vulcanized by mold pressurization. Before vulcanizing, the tire is a plastic rubber with viscoelasticity, which is easy to deform, has low strength, and has no use value. After vulcanizing, the plastic rubber is cured and becomes a high-elastic rubber with use value.

A tire vulcanizing equipment is provided in the prior art. As shown in <FIG>, a heating assembly <NUM> is provided in the vulcanizing bladder <NUM> to directly heat the heating medium gas, and a gas circulation assembly <NUM> is provided in the vulcanizing bladder <NUM> to make the temperature distribution in the vulcanizing bladder <NUM> uniform. However, in the solution provided by this prior art, the heating assembly <NUM> and the gas circulation assembly <NUM> are radially arranged in the vulcanizing bladder <NUM>, that is, as shown in <FIG>, the heating assembly <NUM> and the gas circulation assembly <NUM> are arranged in the horizontal direction, resulting in excessive radial space occupation inside the vulcanizing bladder <NUM>. The radial space inside the vulcanized tire must be larger than the coverage of the horizontally arranged heating assembly <NUM> and gas circulation assembly <NUM> to guarantee normal vulcanizing processing, as a result of which the horizontally arranged equipment limits the processing specifications of vulcanized tires and is not suitable for processing tires with small inner diameters, and the horizontally arranged equipment is likely to hinder the flow of air in the vulcanizing bladder <NUM> along the horizontal direction, which is not beneficial to the gas circulation in the vulcanizing bladder <NUM>.

In this embodiment, the vulcanizing equipment comprises a vulcanizing mold <NUM>, a vulcanizing bladder <NUM>, a center rod <NUM>, a clamping device <NUM>, a heating assembly <NUM>, a gas circulation assembly <NUM>, a driving assembly <NUM>, and so on.

The vulcanizing mold <NUM> is configured to be able to open and close, inside which a vulcanizing cavity is formed. From the perspective shown in <FIG>, the vulcanizing mold <NUM> is in an upper-lower construction, in which after the upper part of the vulcanization mold <NUM> is separated from the central rod <NUM> that can be lifted and lowered and a portion of the clamping device <NUM> that engages the upper and lower parts of the vulcanization mold <NUM>, the center rod <NUM> can be raised to contract the vulcanizing bladder <NUM>, and the raw tire to be vulcanized is placed in the vulcanizing chamber, then the upper part of the vulcanizing mold <NUM> is lowered, such that the upper and lower parts of the vulcanizing mold <NUM> are closed. During the vulcanizing process, the vulcanizing machine provides clamping force for the vulcanizing mold <NUM>.

The vulcanizing bladder <NUM> is suitable for being placed in the vulcanizing cavity. The vulcanizing bladder <NUM> is a hollow thin-walled rubber product of the vulcanizing machine, which is used to put the raw tire to be vulcanized and then introduce the heating medium into it, and cooperates with the vulcanizing machine to perform shaping and vulcanizing operations. The heating medium is any inert gas or rare gas, as long as it does not participate in the oxidation-reduction reaction, and further, in this embodiment, it is further optionally Nitrogen.

The supporting assembly comprises a center rod <NUM> and a clamping device <NUM> arranged on the center rod <NUM>, the clamping device <NUM> being suitable for installing the vulcanizing bladder <NUM> in the cavity in a sealed manner;
Particularly, after the upper and lower parts of the vulcanizing mold <NUM> are separated, the center rod <NUM> can be raised, the raw tire to be vulcanized is placed in the vulcanizing chamber, and after the center rod <NUM> can be lowered, the vulcanizing mold <NUM> are closed when the upper part of the vulcanizing mold <NUM> is lowered. The clamping device <NUM> arranged on the center rod <NUM> is suitable for sealing the vulcanizing bladder <NUM> to avoid leakage of the heating medium gas.

The heating assembly <NUM> and the gas circulation assembly <NUM>, as shown in <FIG>, are arranged in the vulcanizing bladder <NUM> in a stacked manner in the axial direction of the center rod <NUM>. From the perspective shown in <FIG>, the heating assembly <NUM> and the gas circulation assembly <NUM> are arranged in the height direction, and the gas circulation assembly <NUM> is suitable for circulating the heated heating medium in the vulcanizing bladder <NUM>. It should be noted that the arrangement of the heating assembly <NUM> and the gas circulation component <NUM> in a stacked manner in the axial direction of the center rod <NUM> does not limit whether the heating assembly <NUM> and the gas circulation component <NUM> are in contact with each other or not.

Particularly, when applied to the vulcanizing operation of tires, the item to be vulcanized, such as the raw tire to be vulcanized is placed between the vulcanizing mold <NUM> and the vulcanizing bladder <NUM>, the vulcanization bladder <NUM> is clamped and sealed by means of the clamping device <NUM>, the heating medium gas introduced into the vulcanization bladder <NUM> is heated by the heating assembly <NUM>, and the gas circulation assembly <NUM> is used to circulate the heated heating medium gas in the vulcanization bladder <NUM>, while the heating assembly <NUM> and the gas circulation assembly <NUM> are arranged in the vertical direction outside the central rod <NUM>, which overcomes the defect that the heating assembly <NUM> and the gas circulation assembly <NUM> arranged horizontally in the vulcanizing bladder <NUM> occupy too much space in the prior art, which limits the processing specifications of the vulcanized tire and is not beneficial to the gas circulation in the vulcanizing bladder <NUM>.

In this embodiment, in order to provide the power of the gas circulation assembly <NUM>, it also comprises a drive assembly <NUM> comprising: a rotating shaft sleeve <NUM>, which is arranged outside the center rod <NUM> and connected to the gas circulation assembly <NUM>. The rotating shaft sleeve <NUM> is preferably of hollow structure. The rotating sleeve <NUM> is sleeved and arranged on the outside of the center rod <NUM> with a clearance fit. The rotating shaft sleeve <NUM> arranged on the outside of the center rod <NUM> with a clearance fit is suitable for rotating on the central rod <NUM> to drive the gas circulation assembly <NUM> to perform gas circulation inside the vulcanizing bladder <NUM>. The rotating shaft sleeve <NUM> can also be located on the outside of the center rod <NUM> in an offset manner, and connected to the gas circulation assembly <NUM> through a transmission assembly such as gears. The rotating shaft sleeve <NUM> can be a non-hollow structure.

The advantage of the vulcanizing equipment provided in this embodiment is that the heating assembly <NUM> and the gas circulation assembly <NUM> are arranged in the vertical direction outside the center rod <NUM>, which makes the heating assembly <NUM> and the gas circulation assembly <NUM> occupy less radial space in the vulcanizing bladder <NUM>. Providing that the inner radial space of the vulcanized tire must be larger than the coverage of the heating assembly <NUM> and the gas circulation assembly <NUM>, the heating assembly <NUM> and the gas circulation arranged vertically along the central rod <NUM> of the supporting assembly, since they occupy less radial space, can be applied to but not limited to the processing of tires with smaller inner diameter specifications, and the heating assembly <NUM> and the gas circulation assembly <NUM> arranged vertically along the axis of the center rod <NUM> of the supporting assembly will not hinder the flow of air in the vulcanization bladder <NUM>, which is beneficial to the circulation of the heating medium gas in the vulcanization bladder <NUM> and improves the heat transfer efficiency and the temperature uniformity of the temperature field. At the same time, it is guaranteed that the heating medium gas passes through the heating assembly <NUM> relatively uniformly in the vertical direction such that the heating efficiency is higher. The invention overcomes the defects in the prior art that the equipment with a vulcanizing bladder <NUM> horizontally arranged occupies too much space, limits the processing specifications of vulcanized tires, and is not beneficial to the gas circulation in the vulcanizing bladder <NUM>.

On the basis of the above embodiments, as a further defined embodiment, as shown in <FIG>, the gas circulation assembly <NUM> comprises an venting member <NUM>.

The venting member <NUM> is connected to the rotating shaft sleeve <NUM>.

Particularly, as shown in <FIG>, the venting member <NUM> is driven by the driving assembly <NUM> to form wind force to provide power for the circulation of the heating medium gas in the vulcanizing bladder <NUM>. The venting member <NUM> is directly power-connected to the rotating shaft sleeve <NUM>, such that the structure is simple and the service life is long. The venting member <NUM> may be an open impeller, a closed impeller, an axial fan, and the like.

The venting member <NUM> can be an open impeller, as shown in <FIG>, on which guide vanes <NUM> are arranged, and a guide ring <NUM> is arranged on the outer peripheral side of the venting member <NUM> and is installed on the clamping device <NUM> by a plurality of supporting blocks <NUM>. A gap is provided between two adjacent supporting blocks <NUM>, and an air channel <NUM> is formed between the venting member <NUM> and the guide ring <NUM>.

Particularly, as shown in <FIG>, the supporting blocks <NUM> are arranged at intervals on the clamping device <NUM>, and the gap formed between two adjacent supporting blocks <NUM> is suitable for allowing the heating medium gas to pass through via the air channel <NUM>. The supporting blocks <NUM> is further provided with a guide ring <NUM> to ensure the fluency of the heating medium gas passing through, while guiding the heating medium gas, such that the heating medium gas flows along the bottom of the vulcanizing bladder <NUM> to perform gas circulation.

Further, the gas circulation assembly <NUM> also comprises a diffuser <NUM>, as shown in <FIG>. It is arranged at the air channel <NUM>, and the heating medium gas flowing out from the air channel <NUM> passes through the diffuser <NUM>, such that the flow rate and pressure of the heating medium gas are increased, and the heat exchange efficiency between the heating medium gas and the vulcanizing bladder <NUM>, the heater <NUM> is increased at a high flow rate, while the temperature uniformity inside the vulcanizing bladder <NUM> is improved.

Particularly, as shown in <FIG>, the gas circulation assembly <NUM> enables the heating medium gas to flow along the circulation path inside the bladder to ensure efficient heat exchange between the heating medium gas and the vulcanizing bladder <NUM>, and improves the uniformity of temperature distribution in the temperature field to ensure the quality and efficiency of tire vulcanizing. The venting member <NUM> in the gas circulation assembly <NUM> can be selected as an impeller to provide power for the gas circulation of the heating medium. The guide ring <NUM> cooperates with the supporting blocks <NUM> and part of the structure of the clamping device <NUM> to form an air channel <NUM>. The guide ring <NUM> can guide the airflow generated by the venting member <NUM> to converge, and pressurize and guide the airflow entering the air channel <NUM> through the diffuser <NUM> arranged at the air channel <NUM>, such that the heating medium gas can flow along the circulation path and at the same time flow in the circumferential direction, further improving the heat transfer efficiency and the temperature uniformity of the temperature field.

Further, shown in <FIG> is a schematic diagram of the flow direction of the heating medium of the vulcanizing equipment. When the drive assembly <NUM> is rotating forward, the heating medium gas passes through the heating assembly <NUM> and is heated layer by layer. The heating medium gas passing through the heating assembly <NUM> is sucked into the venting member <NUM> due to the action of the venting member <NUM> in the gas circulation assembly <NUM> and further exported through the venting member <NUM>, and enters the air channel <NUM> and the diffuser <NUM>. The high-speed and high-pressure heating medium gas flows along the inner wall of the vulcanizing bladder <NUM>, and after fully exchanging heat with the vulcanizing bladder <NUM>, it finally enters the heating assembly <NUM> again to be heated, so as to complete a cycle, and such a cycle repeats to improve the uniformity of the internal temperature of the vulcanizing bladder <NUM>. During this process, the guide vanes <NUM> provided on the venting member <NUM> and the guide pieces <NUM> provided on the diffuser <NUM> are suitable for directing the heating medium gas to the circumferential direction of the vulcanizing bladder <NUM>, thereby further improving the uniformity of the internal temperature of the vulcanizing bladder <NUM>.

Further, as shown in <FIG>, another schematic diagram of the flow direction of the heating medium of the vulcanizing equipment is shown. When the driving assembly <NUM> rotates in the reverse direction, the flow direction of the heating medium gas is opposite to that when the driving assembly <NUM> rotates forward.

On the basis of the above embodiments, as a further defined embodiment, the venting member <NUM> is an open impeller.

Particularly, the open impeller cooperates with the guide ring <NUM>, the supporting blocks <NUM> and part of the clamping device <NUM> to form an air channel <NUM>. The guide ring <NUM> can guide the airflow generated by the venting member <NUM> to converge, and pressurize and guide the airflow entering the air channel <NUM> through the diffuser <NUM> arranged at the air channel <NUM>, such that the heating medium gas can flow along the circulation path and at the same time flow in the circumferential direction, further improving the heat transfer efficiency and the temperature uniformity of the temperature field. At the same time, the guide vanes of the open impeller are suitable for guiding the heating medium gas in the circumferential direction of the vulcanizing bladder <NUM>, such that the heating medium gas can circulate in both the horizontal and vertical directions of the vulcanizing bladder <NUM>.

Further, the venting member <NUM> cooperates with the guide ring <NUM> and the supporting block <NUM> to form a technical effect that can be achieved by the assembly, which can be fully realized by the closed impeller, that is, in this embodiment, the combination of the closed impeller venting member <NUM> and the diffuser <NUM> can be used to replace the open impeller venting member <NUM> mating with the combination of the guide ring <NUM> and the diffuser <NUM>. At this time, support bodies are provided on the outer peripheral side of the closed impeller, and the bracket <NUM> and the sleeve <NUM> are provided on the supporting bodies.

An open impeller or a closed impeller can be selected as the venting member in the gas circulation assembly to provide power for the circulation of the heating medium gas. When the opening impeller is selected, the guide ring <NUM> cooperates with the support blocks <NUM> and a part of the structure of the clamping device <NUM>, thereby forming an air channel <NUM>, and the guide ring <NUM> can guide the airflow generated by the venting member to converge. When the closed impeller is selected, it has air channel <NUM> itself, and it is not needed to provide the guide ring <NUM>.

On the basis of the above embodiments, as a further defined embodiment, as shown in <FIG>, the heating assembly <NUM> comprises: a bracket <NUM> arranged on the guide ring <NUM> and a heater <NUM> provided on the bracket <NUM>, the heater <NUM> being formed with a ventilation portion in the vertical direction.

Particularly, the bracket <NUM> is arranged on the guide ring <NUM> such that the heating assembly <NUM> is located on the upper part of the gas circulation assembly <NUM> as a whole, maintaining the vertically upward stacking position relationship between the heating assembly <NUM> and the gas circulation assembly <NUM>, which overcomes the defects in the prior art that the equipment with a vulcanizing bladder <NUM> horizontally arranged occupies too much space, limits the processing specifications of vulcanized tires, and is not beneficial to the gas circulation in the vulcanizing bladder <NUM>.

Further, the heater <NUM> is formed with a ventilation portion in the vertical direction, facilitating the heating medium gas in passing through the heater <NUM> along the circulation path without being hindered, which ensures the smoothness of the heating medium gas circulation. At the same time, the heater <NUM> can be arranged in multiple layers along the bracket <NUM>, which can be <NUM>-<NUM> layers, and each layer of heater <NUM> can heat the heating medium gas circulating inside the vulcanizing bladder <NUM>, that is, the heating medium gas circulating inside the vulcanizing bladder <NUM> can be heated multiple times in one circulation, thereby improving the heating efficiency.

On the basis of the above embodiments, as a further defined embodiment, as shown in <FIG>, the heater <NUM> is a heating coil.

Particularly, a ventilation portion is formed in the middle of the heating coil, facilitating the heating medium gas in passing through the circulation path without being hindered, which ensures the smoothness of the heating medium gas circulation. The space between adjacent heating tubes further facilitates the circulation and heating of the heating medium. At the same time, the heating coil is axially arranged with multiple layers suitable for hovering on the bracket <NUM>, and each layer of heating coil can heat the heating medium gas circulating inside the vulcanizing bladder <NUM>, that is, the heating medium gas circulating inside the vulcanizing bladder <NUM> can be heated multiple times by the heating coil in one circulation, thereby improving the heating efficiency.

On the basis of the above embodiments, as a further defined embodiment, as shown in <FIG>, a sleeve <NUM> is provided outside the heater <NUM> and is installed on the guide ring <NUM>.

Particularly, the sleeve <NUM> is arranged on the outside of the heater <NUM>, and the sleeve <NUM> is installed above the guide ring <NUM> and attached to the upper surface of the guide ring <NUM>, which can function to guide the heating medium gas and prevent the heating medium gas from leaking between the sleeve <NUM> and the guide ring <NUM>. The height of the sleeve <NUM> is set to be higher than the heater <NUM>, which facilitates in guiding the heating medium gas to be collected above the heater <NUM> and enter the heater <NUM>, thereby improving the smoothness of the heating medium gas circulation. The sleeve <NUM> can prevent the vulcanizing bladder <NUM> from directly receiving the heat radiation of the heater, ensure the uniformity of the temperature field inside the vulcanizing bladder <NUM>, and prevent the vulcanizing bladder <NUM> from being in contact with the heater <NUM> when it is folded, so as to protect the vulcanizing bladder <NUM> and prolong the service life of the vulcanizing bladder <NUM>. The sleeve <NUM> is preferably made of non-metallic material, such as wood, airgel, glass wool and the like.

On the basis of the above embodiments, as a further defined embodiment, as shown in <FIG>, the clamping device <NUM> comprises a ring seat <NUM>, a lower clamping ring <NUM>, an upper clamping ring <NUM> and the like.

The ring seat <NUM> is provided with an air passage pipeline, and the rotating shaft sleeve <NUM> passes through the ring seat <NUM> with clearance fit and is connected with the venting member <NUM>. The air passage pipeline is suitable for leading the heated gas medium into or out of the vulcanizing bladder <NUM>. The rotating shaft sleeve <NUM> passes through the ring seat <NUM> with a clearance fit so that the rotating shaft sleeve <NUM> can rotate relative to the ring seat <NUM> under the drive of the driving assembly <NUM>.

The lower clamping ring <NUM> is installed on the ring seat <NUM>, and the lower end of the vulcanizing bladder <NUM> is clamped between the lower clamping ring <NUM> and the vulcanizing mold <NUM>;The upper clamping ring <NUM> is installed on the protruding end of the center rod <NUM>, and the upper end of the vulcanizing bladder <NUM> is clamped between the upper clamping ring <NUM> and the vulcanizing mold <NUM>.

Particularly, the clamping device <NUM> is arranged to clamp and seal the vulcanizing bladder <NUM> to avoid the leakage of the heating medium gas in the vulcanizing bladder <NUM>, which will reduce the vulcanizing quality of the vulcanizing equipment, and even make it impossible to perform vulcanizing operations. The air passage pipeline provided on the ring seat <NUM> facilitates in passing the heating medium gas in and out of the vulcanizing bladder <NUM>.

On the basis of the foregoing embodiments, as a further defined embodiment, as shown in <FIG>, a lower pressure ring <NUM> is arranged between the lower clamping ring <NUM> and the vulcanizing mold <NUM>, and an upper pressure ring <NUM> is arranged between the upper clamping ring <NUM> and the vulcanizing mold <NUM>, the provisions of the upper clamping ring <NUM> and the lower clamping ring further seal the vulcanizing bladder <NUM>, so as to improve the sealing performance of the vulcanizing bladder <NUM> in the vulcanizing equipment.

On the basis of the above embodiments, as a further defined embodiment, as shown in <FIG>, the diffuser <NUM> comprises an upper retaining ring <NUM>, a lower retaining ring <NUM>, guide pieces <NUM> and the like.

The upper retaining ring <NUM> is in a conical shape;
The lower retaining ring <NUM> is connected to the upper retaining ring <NUM> by several guide pieces <NUM>, wherein a wide end <NUM> and a contracted end <NUM> are formed between the upper retaining ring <NUM> and the lower retaining ring <NUM>, the wide end <NUM> communicating with the air channel <NUM>.

Particularly, a wide end <NUM> and a contracted end <NUM> are formed between the upper retaining ring <NUM> and the lower retaining ring <NUM>. When the heating medium gas flows along the circulation path, the heating medium gas from the air channel <NUM> pours into the contracted end <NUM> from the wide end <NUM>, and flow out from the constricted end <NUM>, such that the flow rate and pressure of the outflowing heating medium gas are increased, and the heat exchange efficiency between the heating medium gas, the vulcanizing bladder <NUM> and the heater <NUM> is increased at a high flow rate.

Further, the venting member <NUM> can reach a speed of more than 1500r/min, and by the action of the diffuser <NUM>, the flow rate at the constricted end <NUM> of the diffuser <NUM> can reach more than <NUM><NUM>/s, and the flow speed can reach more than <NUM>/s, which has been significantly improved compared with conventional vulcanizing equipment.

Further, as shown in <FIG>, the guide pieces <NUM> are offset toward one side from the inside to the outside, and is suitable for guiding the heating medium gas in the circumferential direction of the vulcanizing bladder <NUM> during the process of guiding the heating medium gas from the wide end <NUM> to the constricted end <NUM>, such that the heating medium gas can realize circulating flow in the horizontal and vertical directions of the vulcanizing bladder <NUM>, thereby further improving the uniformity of temperature inside the vulcanizing bladder <NUM>.

On the basis of the above-mentioned embodiments, as a further defined embodiment, as shown in <FIG>, the drive assembly <NUM> further comprises a transmission member acting between the rotating shaft sleeve <NUM> and the driving motor <NUM>. The transmission member acting between the rotating shaft sleeve <NUM> and the driving motor <NUM> power-connects to the drive motor <NUM> and the rotating shaft sleeve <NUM>, and the external power provided by the driving motor <NUM> is transmitted to the rotating shaft sleeve <NUM> and further transmitted to the venting member <NUM> by the rotating shaft sleeve <NUM> to provide power for the gas circulation of the heating medium gas.

On the basis of the above-described embodiments, as a further defined embodiment, as shown in <FIG>, the transmission member is a gear pair comprising a first gear <NUM> arranged on the driving motor <NUM> and rotates synchronously with the motor shaft; and a second gear <NUM> arranged on the rotating shaft sleeve <NUM> and engaging with the first gear <NUM>. The gear pair is used to facilitate power transmission and provide power for the gas circulation of the heating medium gas. As a variant, the transmission member can also be a common transmission mechanism in the prior art such as a chain transmission and a belt transmission, without too much limitation.

On the basis of the above - mentioned embodiments, as a further defined embodiment, as shown in <FIG>, the ring seat <NUM> is provided with a wire passing pipeline <NUM> , and the guide ring <NUM> is provided with a through hole <NUM>, and the wire <NUM> passes through the wire passing pipeline <NUM> and the through hole <NUM> to connect to the heating assembly <NUM>.

Particularly, the ring seat <NUM> is provided with a wire passing pipeline <NUM>, and the guide ring <NUM> is provided with a through hole <NUM>, which facilitates in passing the wire <NUM>, and is suitable for connecting an external power supply device to a heating assembly <NUM> to provide heating power for the heater <NUM>.

The advantages of this embodiment is that the heating assembly <NUM> and the gas circulation assembly <NUM> are arranged in the vertical direction outside the center rod <NUM>, occupying less radial space in the vulcanizing bladder <NUM>, and can be applied to, but not limited to, processing tires with smaller inner diameter specifications, and the heating assembly <NUM> and the gas circulation assembly <NUM> arranged vertically along the axis of the center rod <NUM> of the supporting assembly will not hinder the flow of air in the vulcanizing bladder <NUM>, which is beneficial to the circulation of the heating medium gas in the vulcanizing bladder <NUM>, improving heat transfer efficiency, and temperature uniformity of the temperature field. At the same time, it is ensured that the heating medium gas passes through the heating assembly <NUM> relatively uniformly in the vertical direction such that the heating efficiency is higher. The invention overcomes the defects in the prior art that the equipment with a vulcanizing bladder <NUM> horizontally arranged occupies too much space, limits the processing specifications of vulcanized tires, and is not beneficial to the gas circulation in the vulcanizing bladder <NUM>.

This embodiment provides a vulcanizing equipment, as shown in <FIG>, differing from Embodiment <NUM> in that the heating assembly <NUM> and the gas circulation assembly <NUM> are arranged in the vulcanizing bladder <NUM> in a stacked manner in the axial direction of the center rod <NUM>, and the positions of the heating assembly <NUM> and the gas circulation assembly <NUM> is interchanged such that the gas circulation assembly <NUM> is located above the heating assembly <NUM>.

Particularly, the heating assembly <NUM> is arranged on the ring seat <NUM>, and the rotating shaft sleeve <NUM> is extended along the center rod <NUM> to the depth of the vulcanizing bladder <NUM>, so that the venting member <NUM> of the gas circulation assembly <NUM> is located above the heating assembly <NUM>, and the position of the ring seat <NUM> corresponding to the lower part of the heating assembly <NUM> is designed in a conical shape for guiding flow, which facilitate in guiding the heating medium gas.

Further, as shown in <FIG> which is a schematic diagram of the flow direction of the heating medium of the vulcanizing equipment provided by this embodiment, when the drive assembly <NUM> rotates forward, the heating medium gas passes through the heating assembly <NUM> and is heated layer by layer. The heating medium gas passing through the heating assembly <NUM> is sucked into the venting member <NUM> due to the action of the venting member <NUM> in the gas circulation assembly <NUM> and further exported through the venting member <NUM>, flows along the inner wall of the vulcanizing bladder <NUM>, and after fully exchanging heat with the vulcanizing bladder <NUM>, it finally enters the heating assembly <NUM> through the ring seat <NUM> having a guiding effect again, to be heated, so as to complete a cycle, and such a cycle repeats to improve the uniformity of the internal temperature of the vulcanizing bladder <NUM>. During this process, the guide vanes <NUM> provided on the venting member <NUM> are suitable for directing the heating medium gas to the circumferential direction of the vulcanizing bladder <NUM>, thereby further improving the uniformity of the internal temperature of the vulcanizing bladder <NUM>.

Further, as shown in <FIG>, another schematic diagram of the flow direction of the heating medium of the vulcanizing equipment provided by this embodiment is shown. When the driving assembly <NUM> rotates in the reverse direction, the flow direction of the heating medium gas is opposite to that when the driving assembly <NUM> rotates forward.

Claim 1:
A vulcanizing equipment, comprising:
a vulcanizing mold (<NUM>) configured to be able to open and close, in which a vulcanizing cavity is formed;
a vulcanizing bladder (<NUM>) suitable for being placed in the vulcanizing cavity;
a supporting assembly comprising a center rod (<NUM>) and a clamping device (<NUM>) provided on the center rod (<NUM>), the clamping device (<NUM>) being suitable for installing the vulcanizing bladder (<NUM>) in the cavity in a sealed manner;
a heating assembly (<NUM>) and a gas circulation assembly (<NUM>) provided in the vulcanizing bladder (<NUM>) in a stacked manner in the axial direction of the center rod (<NUM>), the gas circulation assembly (<NUM>) being suitable for circulating a heating medium in the vulcanizing bladder (<NUM>);
a driving assembly (<NUM>) comprising a rotating shaft sleeve (<NUM>) provided outside the center rod (<NUM>) and connected to the gas circulation assembly (<NUM>);
the center rod (<NUM>) can be raised to contract the vulcanizing bladder (<NUM>);
the heating assembly (<NUM>) comprises a heater (<NUM>) forming a ventilation portion in a vertical direction, and characterised in that
a sleeve (<NUM>) is provided outside the heater (<NUM>), the height of the sleeve (<NUM>) is set to be higher than the heater (<NUM>), which facilitates in guiding the heating medium gas to be collected above the heater (<NUM>) and enter the heater, thereby improving the smoothness of the heating medium gas circulation.