CN117818119A

CN117818119A - Tire vulcanizing equipment

Info

Publication number: CN117818119A
Application number: CN202410246472.9A
Authority: CN
Inventors: 高龙飞; 刘代平; 赵阳; 刘志兰; 王洋洋; 马鹏飞; 霍红日
Original assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Current assignee: Himile Mechanical Science and Technology Shandong Co Ltd
Priority date: 2024-03-05
Filing date: 2024-03-05
Publication date: 2024-04-05

Abstract

The invention relates to the technical field of vulcanizing devices, and discloses tire vulcanizing equipment which comprises a vulcanizing mold, a vulcanizing capsule, a supporting component, a center rod, a clamping device, an external mounting piece, a heating device and a gas circulating device. The clamping means are adapted to sealingly mount the curing bladder in the curing chamber; the clamping device comprises a center seat, wherein the center seat is provided with a first through hole communicated with the vulcanization cavity; the external installation piece is internally provided with a heating diversion cavity and a second through port communicated with the heating diversion cavity, and the second through port is connected with the first through port so that the heating diversion cavity is communicated with the vulcanization cavity; the heating device and the gas circulation device are arranged in the heating diversion cavity. According to the invention, the external mounting piece arranged on the whole outer side of the vulcanizing mold provides mounting positions for the heating device and the gas circulation device, so that the mounting space in the vulcanizing mold, namely the vulcanizing capsule is saved, and the vulcanizing processing specification of the vulcanizing equipment on the tire is not limited by the mounting space in the vulcanizing capsule.

Description

Tire vulcanizing equipment

Technical Field

The invention relates to the technical field of vulcanizing devices, in particular to tire vulcanizing equipment.

Background

In industrial production, vulcanization is often employed to increase the overall hardness of certain materials.

For example, tire vulcanization refers to vulcanization of a tire casing by a mold pressurization method. Before vulcanization, the tire is a plastic rubber with viscoelasticity, is easy to deform, has low strength and no use value, and is cured into a high-elasticity rubber with use value through vulcanization.

The conventional electric heating vulcanizing machine is required to be provided with a heating device and a gas circulation device at the inner side of the vulcanizing capsule so as to realize heating and circulation of a gas medium in the vulcanizing capsule and ensure uniformity of heated temperature of the tire during vulcanizing operation. However, in the above-mentioned scheme, the heating device and the gas circulation device occupy an excessive space inside the curing bladder, and the radial space inside the tire to be cured must be larger than the radial coverage of the heating device and the gas circulation device to ensure normal tire curing, which results in that the heating device and the gas circulation device disposed inside the curing bladder limit the processing specification of the cured tire and are not suitable for processing the tire with smaller inner diameter.

Disclosure of Invention

In view of this, the present invention provides a tire vulcanizing apparatus to solve the problem that in the present tire vulcanizing apparatus, a heating device and a gas circulation device disposed inside a curing bladder limit the processing specifications of a vulcanized tire.

The present invention provides a tire vulcanizing apparatus comprising: the vulcanizing mold is arranged in an openable and closable manner, and a vulcanizing cavity is formed in the vulcanizing mold; a curing bladder adapted to be placed in said curing chamber; a support assembly comprising a central rod, and clamping means provided on said central rod, said clamping means being adapted to sealingly mount said curing bladder in said curing cavity; the clamping device comprises a center seat, wherein the center seat is provided with a first through port communicated with the vulcanization cavity; the tire vulcanizing apparatus further comprises: the external mounting piece is internally provided with a heating diversion cavity and a second through port communicated with the heating diversion cavity, and the second through port is connected with the first through port to enable the heating diversion cavity to be communicated with the vulcanization cavity; the heating device and the gas circulation device are arranged in the heating diversion cavity, the heating device is suitable for heating a gas medium, and the gas circulation device is suitable for diversion of the gas medium.

The beneficial effects are that: the invention provides tire vulcanizing equipment, which provides mounting positions for a heating device and a gas circulating device through an external mounting piece arranged on the whole outer side of a vulcanizing mold, so that heating and flow guiding of a gas medium are realized, normal vulcanizing operation is ensured, meanwhile, the mounting space inside a vulcanizing mold, namely a vulcanizing capsule, is saved, the vulcanizing processing specification of the tire is not limited by the mounting space inside the vulcanizing capsule by the vulcanizing equipment, and the sizes of the vulcanizing mold and the vulcanizing capsule can be selected to a greater extent, so that the tire vulcanizing equipment is suitable for tire vulcanizing operations with different sizes.

In an alternative embodiment, the side of the circumscribing mounting member adjacent the first pass-through is radially inwardly tapered adjacent the central rod to form the second pass-through at the end of the circumscribing mounting member.

The beneficial effects are that: the heating device and the gas circulation device are arranged at the lower part of the external mounting piece, and because the sizes of the heating device and the gas circulation device are larger, the upper part of the external mounting piece, namely the side of the external mounting piece, which is close to the first through hole, is radially contracted inwards, which is close to the central rod, so that the inner diameter of the second through hole formed at the end part of the external mounting piece is reduced, and the clamping position of the clamping device at the lower part of the vulcanization capsule is closer to the central rod on the premise of ensuring smooth circulation of a gas medium, so that the vulcanization mold and the vulcanization capsule can adapt to tires with smaller sizes, and the universality of tire vulcanization equipment is improved.

In an alternative embodiment, the external mounting member comprises a housing positioned at a side portion, and the tire vulcanizing apparatus further comprises a flow guiding device arranged in the heating flow guiding cavity, wherein the flow guiding device is arranged between the housing and the gas circulation device; a circulating air inlet channel is formed between the flow guiding device and the central rod, and a circulating air outlet channel is formed between the flow guiding device and the outer cover.

The beneficial effects are that: the guiding device is arranged in the heating guiding cavity, so that the guiding device is convenient for guiding the gas medium flowing after heating, the gas medium is guided into the vulcanizing capsule through the circulating air inlet channel, the gas medium flows in the vulcanizing capsule for vulcanizing operation, the gas medium flowing in the vulcanizing capsule for one circle is guided out through the circulating air outlet channel, and the preparation is made for the next gas medium circulation, thereby ensuring the order of the gas medium in the heating guiding cavity, avoiding the influence of the random flowing of the gas medium in the heating guiding cavity on the air inlet efficiency and the air outlet efficiency between the gas medium and the vulcanizing capsule, and ensuring the vulcanizing quality of the tire.

In an alternative embodiment, the guiding device comprises an extension portion, and the extension portion is formed by bending one end of the guiding device, which is close to the curing bladder, and extending towards the curing bladder; the clamping device further comprises: an upper clamping ring arranged at the extending end of the center rod, wherein the upper end of the vulcanization capsule is clamped between the upper clamping ring and the vulcanization mold, and a circulating channel inlet is formed between the lower surface of the upper clamping ring and the upper surface of the extension part; and the lower clamping ring is arranged on the center seat, the lower end of the vulcanization capsule is clamped between the lower clamping ring and the vulcanization mold, and a circulating channel outlet is formed between the upper surface of the lower clamping ring and the lower surface of the extension part.

The beneficial effects are that: the top of the flow guiding device is provided with the extension part which extends towards the vulcanizing capsule to form a circulating channel inlet between the upper clamping ring and the extension part, so that the circulating channel inlet is communicated with the circulating air inlet channel, and a circulating channel outlet is formed between the lower clamping ring and the extension part, so that the circulating channel outlet is communicated with the circulating air outlet channel, thereby forming an air inlet path and an air outlet path of a gas medium which are arranged towards the side part of the vulcanizing capsule at the vulcanizing capsule, guiding the gas medium from the circulating channel inlet to the side wall of the vulcanizing capsule after entering the vulcanizing capsule, returning along the circulating channel outlet after flowing for a circle in the vulcanizing capsule, realizing circulating flow of the gas medium in the vulcanizing capsule, and improving the temperature uniformity of the inner wall of the vulcanizing capsule.

In an optional embodiment, the air guide device further comprises a guide piece arranged on the central rod, the guide piece is located in the circulating air inlet channel, and at least part of the guide piece is an arc surface and is arranged corresponding to the bending position of the guide device.

The beneficial effects are that: the guide piece is arranged at the position of the arc surface, which corresponds to the bending position of the guide device, and is positioned at the joint of the central rod and the upper clamping ring, when the gas medium in the circulating air inlet channel flows through the position, the arc surface structure of the guide piece can guide the gas medium to the inlet of the circulating channel, so that the gas medium is prevented from flowing at the joint of the central rod and the upper clamping ring, the flowing fluency of the gas medium is improved, the gas medium is ensured to be fully circulated in the vulcanizing capsule, and the vulcanizing quality is improved.

In an alternative embodiment, the lower surface of the upper clamping ring is provided with a first flow guiding portion having a slope structure inclined towards the upper side of the curing bladder, adapted to guide the gaseous medium at the inlet of the circulation channel towards the upper side of the curing bladder.

The beneficial effects are that: through setting up the first water conservancy diversion portion of orientation vulcanization capsule upside slope, with the gas medium of circulation channel import to vulcanization capsule's upside water conservancy diversion for gas medium is closer to the inner wall of vulcanization capsule at vulcanization capsule's upside's flow path, further promotes vulcanization capsule inner wall's temperature homogeneity.

In an alternative embodiment, the upper surface of the extension is provided with a second flow guiding portion having a beveled structure sloping towards the upper side of the curing bladder, adapted to guide the gaseous medium at the inlet of the circulation channel towards the upper side of the curing bladder.

The beneficial effects are that: through setting up the second water conservancy diversion portion that inclines towards the upside of curing bladder, with the gas medium of circulation channel import to the upside water conservancy diversion of curing bladder, cooperate the inclined plane structure of first water conservancy diversion portion syntropy slope for gas medium is further close to the inner wall of curing bladder at the flow path of curing bladder's upside, further promotes the temperature homogeneity of curing bladder inner wall.

In an alternative embodiment, the upper surface of the lower clamping ring is provided with a third flow guiding portion having a sloping structure sloping towards the underside of the curing bladder, adapted to guide the gaseous medium flowing along the underside of the curing bladder towards the circulation channel outlet.

The beneficial effects are that: by arranging the third flow guide part inclined towards the lower side of the vulcanization capsule, the gas medium flowing along the lower side of the vulcanization capsule is guided to the circulation channel outlet, so that the flow path of the gas medium at the lower side of the vulcanization capsule is not blocked by the lower clamping ring, the gas medium is ensured to smoothly flow into the circulation channel outlet, and the fluency of the gas medium flowing at the lower side of the vulcanization capsule is improved.

In an alternative embodiment, the heating device and the gas circulation device are arranged in a stacked manner in the circulation intake passage; or the heating device is arranged in the circulating air inlet channel, and the gas circulating device is arranged in the circulating air outlet channel.

The beneficial effects are that: the heating device and the gas circulation device are arranged in a stacked manner so as to improve the fluency of the flow of the gas medium; the gas circulation device is arranged in the circulation air outlet channel so as to improve the space utilization rate of the heating diversion cavity.

In an alternative embodiment, the external mounting member further comprises a bottom plate positioned at the bottom and connected to the housing, the bottom plate being provided with a gaseous medium inlet and a gaseous medium outlet.

The beneficial effects are that: a gas medium inlet and a gas medium outlet are arranged at the bottom plate of the external mounting piece, so that medium gas is introduced from the gas medium inlet and fills the whole heating diversion cavity and the vulcanizing cavity when the vulcanizing operation starts; and after the vulcanizing operation is finished, discharging the medium gas in the heating guide cavity and the vulcanizing cavity from the gas medium outlet.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a tire curing apparatus according to the present invention;

FIG. 2 is a schematic diagram of the structure of the air inlet and outlet channels and the positions of the air inlet and outlet of the tire vulcanizing device;

FIG. 3 is a schematic cross-sectional view of a circular inlet channel and a circular outlet channel at the cross-sectional position of a center seat according to an embodiment of the present invention;

fig. 4 is a schematic cross-sectional view of a circular inlet channel and a circular outlet channel at the cross-sectional position of a center seat according to another embodiment of the present invention.

Reference numerals illustrate:

1. vulcanizing a mold; 101. a vulcanization cavity;

2. vulcanizing the capsule;

3. a central rod;

4. a clamping device; 401. a center seat; 4011. a first through opening; 402. a clamping ring is arranged; 4021. a first flow guiding part; 403. a lower clamping ring; 4031. a third flow guiding part;

5. externally connected mounting pieces; 501. heating the diversion cavity; 502. an outer cover; 5021. a second through port; 503. a bottom plate; 5031. a gaseous medium inlet; 5032. a gaseous medium outlet;

6. a heating device;

7. a gas circulation device; 701. an air outlet piece; 702. a rotation shaft;

8. a flow guiding device; 801. an extension; 8011. a second flow guiding part;

9. a flow guide;

100. a circulation intake passage;

200. a circulation air outlet channel;

300. a circulation channel inlet;

400. and an outlet of the circulation channel.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiments of the present invention are described below in conjunction with fig. 1-4.

According to an embodiment of the present invention, there is provided a tire vulcanizing apparatus, as shown in fig. 1, including: a vulcanization mold 1, a vulcanization capsule 2, a central rod 3, a clamping device 4, an external mounting piece 5, a heating device 6, a gas circulation device 7 and the like.

The vulcanizing mold 1 is arranged in an openable and closable manner, and a vulcanizing cavity 101 is formed in the vulcanizing mold; the curing bladder 2 is suitable to be placed in the curing chamber 101; the support assembly comprises a central rod 3, and clamping means 4 provided on the central rod 3, the clamping means 4 being adapted to sealingly mount the curing bladder 2 in the curing cavity 101.

Specifically, as shown in fig. 1, the vulcanizing mold 1 has an up-down structure, after the upper end vulcanizing mold 1 is separated from the upper end and the lower end of the vulcanizing mold 1 by matching with the liftable central rod 3 and part of the clamping device 4, the central rod 3 can be lifted to fold the vulcanizing capsule 2, the green tire to be vulcanized is placed in the vulcanizing cavity, the upper end and the lower end of the vulcanizing mold 1 are closed when the upper end vulcanizing mold 1 is lowered, and a vulcanizing machine provides a clamping force for the vulcanizing mold 1 in the vulcanizing process. The vulcanizing bladder 2 is a hollow thin-wall rubber product of a vulcanizing machine and is used for filling a green tire to be vulcanized and then introducing a gas medium to be matched with the vulcanizing machine for shaping and vulcanizing operation. The gas medium is water vapor or an inert gas or a rare gas, so long as the oxidation-reduction reaction is not participated, and in the embodiment, nitrogen is further selected. The clamping means 4 provided on the central rod 3 are adapted to seal the vulcanisation capsule 2 against leakage of gaseous medium.

The clamping device 4 comprises a central seat 401, the central seat 401 having a first through opening 4011 communicating with the vulcanisation cavity 101; the external installation piece 5 is internally provided with a heating diversion cavity 501 and a second through port 5021 communicated with the heating diversion cavity 501, and the second through port 5021 is connected with the first through port 4011 to enable the heating diversion cavity 501 to be communicated with the vulcanization cavity 101; a heating device 6 and a gas circulation device 7 are arranged in the heating and guiding cavity 501, the heating device 6 is suitable for heating a gas medium, and the gas circulation device 7 is suitable for guiding the gas medium.

Specifically, as shown in fig. 1, the first through opening 4011 communicating with the vulcanizing cavity 101 is formed in the center seat 401, and the first through opening 4011 is connected with the second through opening 5021 of the external mounting member 5, so that the heating and guiding cavity 501 in the external mounting member 5 is communicated with the vulcanizing cavity 101 of the vulcanizing mold 1, and the heating device 6 and the gas circulation device 7 arranged in the external mounting member 5 can guide the heated gas medium into the vulcanizing capsule 2 arranged in the vulcanizing mold 1, thereby performing tire vulcanizing operation. The external mounting piece 5 arranged on the whole outer side of the vulcanizing mold 1 provides mounting positions for the heating device 6 and the gas circulation device 7, heating and flow guiding of a gas medium are realized, normal vulcanizing operation is guaranteed, meanwhile, the mounting space inside the vulcanizing mold 1, namely the vulcanizing capsule 2, is saved, vulcanizing equipment cannot limit the vulcanizing processing specification of tires by the mounting space inside the vulcanizing capsule 2, the size specifications of the vulcanizing mold 1 and the vulcanizing capsule 2 can be selected to a greater extent, and accordingly the tire vulcanizing equipment is suitable for tire vulcanizing operations of different size specifications.

Further, in practical application, for different sizes of tires to be vulcanized, the heating device 6 and the gas circulation device 7 with different powers are reasonably selected, so that the vulcanization quality of the tire vulcanization operation is ensured.

Further, in this embodiment, the connection structure and connection form of the first through hole 4011 of the center seat 401 and the second through hole 5021 of the external connection mounting piece 5 are not limited, and the connection form of the first through hole 4011 and the second through hole 5021 may be integrally formed, that is, as shown in fig. 1, at this time, the center seat 401 and the end portion of the external connection mounting piece 5 form an integral structure, and the lower clamping ring 403 is mounted on the center seat 401; or the first through hole 4011 and the second through hole 5021 can be detachably connected, at this time, the center seat 401 and the external mounting piece 5 are respectively set to be independent structures, the first through hole 4011 is directly formed by digging holes in the center seat of the existing tire vulcanizing equipment, the existing tire vulcanizing equipment is utilized for improvement, the cost is saved, the external mounting piece 5 is independently produced and manufactured, and the external mounting piece 5 is connected with the refitted center seat 401 after production is completed.

Further, as shown in fig. 1, the heating device 6 may be an electric heating tube, an induction heater, an infrared heater, a heat exchanger, or the like.

Further, as shown in fig. 1, the gas circulation device 7 may be in a structure form of an open impeller, a closed impeller, a turbine, a fan, a blower, etc., and performs a diversion operation in cooperation with a force transmission action of a driving motor. Preferably, the axial flow impeller is at least provided as a first-stage impeller, and can also be provided as a second-stage impeller or a third-stage impeller to improve the flow rate of the gas medium. In this embodiment, the gas circulation device 7 includes an air outlet member 701 disposed in the heating and guiding cavity 501, and a rotating shaft 702 in transmission connection with the air outlet member 701, where the rotating shaft 702 is in transmission connection with a driving motor to drive the air outlet member 701. The center rod 3 is inserted into the exterior mount 5, and the rotation shaft 702 is disposed between the center rod 3 and the exterior mount 5 with a clearance fit.

In one embodiment, as shown in FIG. 1, the side of the circumscribing mounting member 5 adjacent the first port 4011 is radially retracted adjacent the central rod 3 to form a second port 5021 at the end of the circumscribing mounting member 5.

Specifically, as shown in fig. 1, the heating device 6 and the gas circulation device 7 are disposed at the lower portion of the external mounting member 5, and because the sizes of the heating device 6 and the gas circulation device 7 are larger, in this embodiment, the upper portion of the external mounting member 5, that is, the side of the external mounting member 5, which is close to the first through hole 4011, is contracted radially inwards, which is close to the central rod 3, so that the inner diameter of the second through hole 5021 formed at the end portion of the external mounting member 5 is reduced, and on the premise of ensuring smooth circulation of the gas medium, the clamping position of the clamping device 4 at the lower portion of the curing bladder 2 is closer to the central rod 3, so that the curing mold 1 and the curing bladder 2 can adapt to the tire with smaller size, and the universality of the tire curing apparatus is improved.

In one embodiment, as shown in fig. 1-4, the external mounting member 5 includes a housing 502 located at a side portion, and the tire vulcanizing apparatus further includes a flow guiding device 8 disposed in the heating flow guiding cavity 501, where the flow guiding device 8 is disposed between the housing 502 and the gas circulation device 7; a circulation inlet channel 100 is formed between the deflector 8 and the central rod 3, and a circulation outlet channel 200 is formed between the deflector 8 and the housing 502.

Specifically, as shown in fig. 1 and 2, the flow guiding device 8 disposed in the heating flow guiding cavity 501 is convenient for further guiding the gas medium flowing after heating, and guides the gas medium into the curing bladder 2 through the circulation air inlet channel 100, so that the gas medium flows in the curing bladder 2 for curing operation, and the gas medium flowing in the curing bladder 2 is guided out through the circulation air outlet channel 200 for preparing for the next circulation of the gas medium, thereby ensuring the order of the gas medium in the heating flow guiding cavity 501, avoiding that the arbitrary flow of the gas medium in the heating flow guiding cavity 501 affects the air inlet efficiency and the air outlet efficiency between the gas medium and the curing bladder 2, and ensuring the curing quality of the tire.

Further, as shown in fig. 1, the main structure of the flow guiding device 8 is correspondingly arranged along the contour trend of the housing 502.

Further, as shown in fig. 3 and 4, at the cross-sectional position of the center block 401, the cross-sectional area of the circulation inlet passage 100 is set to 1 to 1.2 times the cross-sectional area of the circulation outlet passage 200. As an embodiment, as shown in fig. 3, the circulation inlet channel 100 is provided with a plurality of strip-shaped interval structures distributed along the circumferential direction of the central rod 3, the circulation outlet channel 200 is positioned at the outer circumferential side of the circulation inlet channel 100, and a plurality of strip-shaped interval structures distributed correspondingly are provided; as another embodiment, as shown in fig. 4, the circulation inlet channels 100 are provided in a plurality of circular spaced structures circumferentially distributed along the center rod 3, and the circulation outlet channels 200 are located on the outer peripheral side of the circulation inlet channels 100, also provided in a plurality of circular spaced structures circumferentially distributed.

In one embodiment, as shown in fig. 1 and 2, the guiding device 8 includes an extending portion 801, and the extending portion 801 is formed by bending an end of the guiding device 8 near the curing bladder 2 and extending toward the curing bladder 2; the clamping device 4 further comprises an upper clamping ring 402 and a lower clamping ring 403, wherein the upper clamping ring 402 is arranged at the extending end of the central rod 3, the upper end of the vulcanizing bladder 2 is clamped between the upper clamping ring 402 and the vulcanizing mold 1, and a circulating channel inlet 300 is formed between the lower surface of the upper clamping ring 402 and the upper surface of the extension part 801; a lower clamp ring 403 is mounted on the center block 401, and the lower end of the curing bladder 2 is clamped between the lower clamp ring 403 and the curing mold 1, and a circulation channel outlet 400 is formed between the upper surface of the lower clamp ring 403 and the lower surface of the extension 801.

Specifically, as shown in fig. 1 and 2, by providing an extension portion 801 extending toward the curing bladder 2 at the top of the flow guiding device 8, a circulation channel inlet 300 is formed between the upper clamping ring 402 and the extension portion 801, so that the circulation channel inlet 300 is communicated with the circulation inlet channel 100, and a circulation channel outlet 400 is formed between the lower clamping ring 403 and the extension portion 801, so that the circulation channel outlet 400 is communicated with the circulation outlet channel 200, thereby forming an air inlet path and an air outlet path of a gas medium disposed toward the side portion of the curing bladder 2 at the curing bladder 2, so that the gas medium is guided toward the side wall of the curing bladder 2 after entering the curing bladder 2 from the circulation channel inlet 300, flows back along the circulation channel outlet 400 after flowing in the curing bladder 2 for a circle, realizing circulation flow of the gas medium in the curing bladder 2, and improving temperature uniformity of the inner wall of the curing bladder 2.

Further, as an alternative embodiment, the extension 801 is provided as a separate structural member, being connected to the top position of the deflector 8 extending towards the curing bladder 2.

In one embodiment, as shown in fig. 1 and 2, the tire vulcanizing apparatus further includes a guide member 9 disposed on the central rod 3, where the guide member 9 is located in the circulating air intake passage 100, and the guide member 9 is at least partially disposed as an arc surface and is disposed corresponding to a position where the guide device 8 is bent.

Specifically, as shown in fig. 1 and fig. 2, the position of the guide member 9, which is set as an arc surface, is set corresponding to the position of the guide device 8 where the guide device is bent, and is located at the connection position of the central rod 3 and the upper clamping ring 402, when the gas medium in the circulation inlet channel 100 flows through the position, the arc surface structure of the guide member 9 can guide the gas medium to the inlet 300 of the circulation channel, thereby preventing the gas medium from flowing hindered at the connection position of the central rod 3 and the upper clamping ring 402, improving the fluency of the gas medium flowing, ensuring that the gas medium can circulate fully in the vulcanization capsule 2, and improving the vulcanization quality.

In one embodiment, as shown in fig. 1 and 2, the lower surface of the upper clamping ring 402 is provided with a first flow guiding portion 4021, and the first flow guiding portion 4021 has a slope structure inclined toward the upper side of the curing bladder 2, and is adapted to guide the gas medium of the circulation path inlet 300 toward the upper side of the curing bladder 2.

Specifically, as shown in fig. 1, by providing the first flow guide portion 4021 inclined toward the upper side of the curing bladder 2, the gaseous medium of the circulation-channel inlet 300 is guided toward the upper side of the curing bladder 2, so that the flow path of the gaseous medium at the upper side of the curing bladder 2 is closer to the inner wall of the curing bladder 2, further improving the temperature uniformity of the inner wall of the curing bladder 2.

Further, the present embodiment is not limited in the arrangement manner of the first flow guide portion 4021. As an embodiment, as shown in fig. 1, a first diversion portion 4021 is integrally formed on a lower surface of an upper clip 402; as another embodiment, the first fluid guide 4021 is provided as a separate structural member having a slope structure and is connected to the lower surface of the upper clip 402.

In one embodiment, as shown in fig. 1, the upper surface of the extension 801 is provided with a second flow guiding portion 8011, and the second flow guiding portion 8011 has a slope structure inclined toward the upper side of the curing bladder 2, and is adapted to guide the gas medium of the circulation path inlet 300 toward the upper side of the curing bladder 2.

Specifically, as shown in fig. 1, by providing the second flow guiding portion 8011 inclined towards the upper side of the curing bladder 2, the gas medium at the inlet 300 of the circulation channel is guided towards the upper side of the curing bladder 2, and the inclined surface structure of the first flow guiding portion 4021 inclined in the same direction is matched, so that the flow path of the gas medium at the upper side of the curing bladder 2 is further close to the inner wall of the curing bladder 2, and the temperature uniformity of the inner wall of the curing bladder 2 is further improved.

Further, the present embodiment is not limited to the arrangement of the second flow guiding portion 8011. As an embodiment, as shown in fig. 1, the second flow guiding portion 8011 is integrally formed on the extending portion 801; as another embodiment, the second flow guiding portion 8011 is provided as a separate structural member having a slope structure, and is connected to the front end of the extension portion 801.

In one embodiment, as shown in fig. 1 and 2, the upper surface of the lower clamping ring 403 is provided with a third flow guiding portion 4031, and the third flow guiding portion 4031 has a slope structure inclined toward the lower side of the curing bladder 2, and is adapted to guide the gas medium flowing along the lower side of the curing bladder 2 toward the circulation-channel outlet 400.

Specifically, as shown in fig. 1 and 2, by providing the third flow guiding portion 4031 inclined toward the lower side of the curing bladder 2, the gas medium flowing along the lower side of the curing bladder 2 is guided toward the circulation channel outlet 400, so that the flow path of the gas medium at the lower side of the curing bladder 2 is not blocked by the lower clamping ring 403, the gas medium is ensured to smoothly flow into the circulation channel outlet 400, and the smoothness of the flow of the gas medium at the lower side of the curing bladder 2 is improved.

Further, the present embodiment is not limited to the arrangement of the third diversion portion 4031. As an embodiment, as shown in fig. 1, the third diversion portion 4031 is integrally formed on the lower surface of the lower clamping ring 403; as another embodiment, the third flow guiding portion 4031 is provided as a separate structural member having a slope structure and is connected to the lower surface of the lower clamp ring 403.

In one embodiment, as shown in fig. 1 and 2, the heating device 6 and the gas circulation device 7 are stacked in the circulation intake passage 100 as one arrangement of the heating device 6 and the gas circulation device 7.

Specifically, as shown in fig. 1, the heating device 6 and the gas circulation device 7 are arranged in a stacked manner so as to promote the smoothness of the flow of the gas medium.

Further, as shown in fig. 1, the gas circulation device 7 is disposed above the heating device 6 in a stacked manner in this embodiment. As an alternative embodiment, the heating device 6 may be stacked above the gas circulation device 7.

In one embodiment, as another arrangement of the heating device 6 and the gas circulation device 7, the heating device 6 is disposed in the circulation intake passage 100, and the gas circulation device 7 is disposed in the circulation output passage 200.

Specifically, the gas circulation device 7 is disposed in the circulation outlet channel 200 so as to improve the space utilization of the heating diversion cavity 501.

In one embodiment, as shown in fig. 1, the external mounting member 5 further comprises a bottom plate 503 located at the bottom and connected to the housing 502, the bottom plate 503 being provided with a gaseous medium inlet 5031 and a gaseous medium outlet 5032.

Specifically, as shown in fig. 1, a gas medium inlet 5031 and a gas medium outlet 5032 are provided at the position of a bottom plate 503 of the external mounting member 5, so that the medium gas is introduced from the gas medium inlet 5031 and fills the whole heating guide cavity 501 and the vulcanizing cavity 101 at the beginning of the vulcanizing operation; after the vulcanization process is completed, the medium gas in the heating and guiding chamber 501 and the vulcanization chamber 101 is discharged from the gas medium outlet 5032.

Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.

Claims

1. A tire curing apparatus comprising:

the vulcanizing mold (1) is arranged in an openable and closable manner, and a vulcanizing cavity (101) is formed in the vulcanizing mold;

-a vulcanisation capsule (2) adapted to be placed in said vulcanisation chamber (101);

-a support assembly comprising a central rod (3), and clamping means (4) provided on said central rod (3), said clamping means (4) being suitable for sealingly mounting said curing bladder (2) in said curing cavity (101);

characterized in that the clamping device (4) comprises a central seat (401), the central seat (401) is provided with a first through port (4011) communicated with the vulcanization cavity (101);

the tire vulcanizing apparatus further comprises:

an external mounting piece (5), wherein a heating diversion cavity (501) is formed in the external mounting piece and is provided with a second through port (5021) communicated with the heating diversion cavity (501), and the second through port (5021) is connected with the first through port (4011) so that the heating diversion cavity (501) is communicated with the vulcanizing cavity (101);

a heating device (6) and a gas circulation device (7) are arranged in the heating diversion cavity (501), the heating device (6) is suitable for heating a gas medium, and the gas circulation device (7) is suitable for diversion of the gas medium.

2. Tyre vulcanisation apparatus according to claim 1, wherein the side of the external mounting (5) adjacent to the first through opening (4011) is radially retracted adjacent to the central rod (3) to form the second through opening (5021) at the end of the external mounting (5).

3. Tyre vulcanisation apparatus according to claim 2, wherein the external mounting (5) comprises a lateral housing (502), the tyre vulcanisation apparatus further comprising a flow guiding device (8) arranged in the heating flow guiding cavity (501), the flow guiding device (8) being arranged between the housing (502) and the gas circulation device (7);

a circulating air inlet channel (100) is formed between the flow guiding device (8) and the central rod (3), and a circulating air outlet channel (200) is formed between the flow guiding device (8) and the outer cover (502).

4. A tyre vulcanisation apparatus according to claim 3, wherein said deflector (8) comprises an extension (801), said extension (801) being formed by the bending of one end of said deflector (8) close to said vulcanisation bladder (2) and extending towards said vulcanisation bladder (2);

the clamping device (4) further comprises:

an upper clamping ring (402) mounted at the extending end of the central rod (3), wherein the upper end of the vulcanizing bladder (2) is clamped between the upper clamping ring (402) and the vulcanizing mold (1), and a circulating channel inlet (300) is formed between the lower surface of the upper clamping ring (402) and the upper surface of the extension part (801);

and a lower clamping ring (403) arranged on the center seat (401), wherein the lower end of the vulcanizing capsule (2) is clamped between the lower clamping ring (403) and the vulcanizing mold (1), and a circulating channel outlet (400) is formed between the upper surface of the lower clamping ring (403) and the lower surface of the extension part (801).

5. Tyre vulcanisation apparatus according to claim 4, further comprising a deflector (9) provided to the central rod (3), the deflector (9) being located in the circulation intake channel (100), the deflector (9) being at least partially provided as an arc surface and being provided in correspondence of the position where the deflector (8) is bent.

6. Tyre vulcanisation apparatus according to claim 5, wherein the lower surface of the upper clamping ring (402) is provided with a first flow guiding portion (4021), the first flow guiding portion (4021) having a sloping structure sloping towards the upper side of the vulcanisation bladder (2) adapted to guide the gaseous medium of the circulation channel inlet (300) towards the upper side of the vulcanisation bladder (2).

7. Tyre vulcanisation apparatus according to claim 6, wherein the upper surface of the extension (801) is provided with a second flow guiding portion (8011), the second flow guiding portion (8011) having a beveled structure inclined towards the upper side of the vulcanisation bladder (2) adapted to guide the gaseous medium of the circulation channel inlet (300) towards the upper side of the vulcanisation bladder (2).

8. Tyre vulcanisation apparatus according to claim 4, wherein the upper surface of the lower clamping ring (403) is provided with a third flow guiding portion (4031), the third flow guiding portion (4031) having a sloping structure sloping towards the underside of the vulcanisation bladder (2) adapted to guide the gaseous medium flowing along the underside of the vulcanisation bladder (2) towards the circulation channel outlet (400).

9. Tyre vulcanisation apparatus according to any of the claims from 4 to 8, wherein said heating device (6) and said gas circulation device (7) are arranged in a stack on said circulation intake channel (100);

alternatively, the heating device (6) is disposed in the circulation air inlet channel (100), and the gas circulation device (7) is disposed in the circulation air outlet channel (200).

10. A tyre vulcanisation apparatus according to claim 3, wherein said external mounting (5) further comprises a bottom plate (503) at the bottom and connected to said housing (502), said bottom plate (503) being provided with a gaseous medium inlet (5031) and a gaseous medium outlet (5032).