1. A new energy tire curing system using a booster circulation pump, comprising: the gas storage device is used for supplying and recovering the vulcanizing medium; a mould for vulcanizing and shaping the green tyre; a capsule for receiving or releasing a vulcanization medium; the method is characterized in that: the device also comprises a pressurization circulating pump with a first chamber and a second chamber; a sulfiding media path for gas flow; a valve assembly for switching a gas flow direction; wherein the content of the first and second substances,

and (3) tire inflation stage: under the action of the valve assembly and the pressurization circulating pump, controlling the second chamber to be in a gas suction state from the gas storage device when the first chamber is in a gas discharge state to the capsule, or controlling the second chamber to be in a gas discharge state to the capsule when the first chamber is in a gas suction state from the gas storage device, and sequentially and circularly reciprocating the first chamber and the second chamber to realize the pressurization and expansion of the capsule so as to fully contact the green tire with the mold;

and (3) tire vulcanization stage: under the action of a valve assembly and a pressurization circulating pump, controlling the second chamber to be in a capsule air suction state when the first chamber is in a capsule air discharge state, or controlling the second chamber to be in a capsule air discharge state when the first chamber is in a capsule air suction state, and sequentially and circularly reciprocating the first chamber and the second chamber to circularly heat a vulcanizing medium so as to finish vulcanizing the green tire;

and (3) a tire deflation stage: after the vulcanization of the green tire is finished, under the action of the valve assembly and the booster circulating pump, the second cavity is controlled to be in a gas suction state from the capsule when the first cavity is in a gas discharge state to the gas storage device, or the second cavity is controlled to be in a gas discharge state to the gas storage device when the first cavity is in a gas suction state from the capsule, and the first cavity and the second cavity sequentially and circularly reciprocate to recover the vulcanization medium in the capsule to the gas storage device.

2. The new energy tire vulcanizing system according to claim 1, wherein the booster circulation pump includes a cylinder body sealed at both ends; the piston is provided with a piston push rod and a piston head, and the piston push rod is connected with a first power source; the piston head and part of the piston push rod are sealed in the cylinder body, the piston head divides the sealed cylinder body into a first cavity and a second cavity which are independent, and air guide holes are formed in the sides of the first cavity and the second cavity.

3. The new energy tire curing system of claim 1, wherein the booster circulation pump comprises a first piston pump having a first chamber and a second piston pump having a second chamber, and the first piston pump and the second piston pump are both driven simultaneously by a second power source; wherein, air vents are arranged on the first chamber side and the second chamber side.

4. The new energy tire curing system according to any one of claims 1 to 3, wherein the tire deflation phase: after the vulcanization of the green tire is finished, the vulcanization medium in the capsule can be guided to be recycled to the gas storage device through the valve component, and then the residual vulcanization medium in the capsule is recycled to the gas storage device under the action of the valve component and the booster circulating pump.

5. The new energy tire curing system according to claim 4, wherein the curing medium passage includes a pressurization passage, a circulation heating passage, and a curing medium recovery passage; the bladder realizes pressurization through the pressurization passage, realizes vulcanization medium circulation heating through the circulation heating passage to vulcanize the green tire, and realizes the recovery of the vulcanization medium through the vulcanization medium recovery passage.

6. The new energy tire vulcanization system of claim 5, characterized in that the pressurization passageway comprises a primary pressurization passageway and a secondary pressurization passageway, and the bladder is expanded and shaped through the primary pressurization passageway and then the pressure in the bladder reaches the vulcanization preset value through the secondary pressurization passageway.

7. The system for vulcanizing new energy tires according to claim 6, characterized in that, the vulcanizing medium recovery path includes a primary recovery path and a secondary recovery path, and the vulcanizing medium in the bladder is recovered to the gas storage device through the primary recovery path, and then the residual vulcanizing medium is recovered to the gas storage device through the secondary recovery path.

8. The new energy tire curing system according to any one of claims 1 to 3, wherein the tire curing stage: a heating element may be provided in the curing medium passage to cyclically heat the curing medium.

9. The new energy tire curing system according to any one of claims 1 to 3, further comprising a common air reservoir for evacuating the bladder with negative pressure to evacuate the curing medium in the bladder.

10. The new energy tire curing system of claim 7, wherein the valve assembly comprises an A valve, a B valve, a C valve, a D valve, an E valve, an F valve, a G valve, and an H valve; when the primary pressurizing passage works, the valve A, the valve B, the valve E and the valve H are opened, the other valves are closed, and the vulcanizing medium enters the capsule from the gas storage device through the primary pressurizing passage (Y11; Y12); when the secondary boost passage is operating, case one: the valve A and the valve H are opened, the other valves are closed, when the first chamber pumps the vulcanizing medium from the gas storage device, the second chamber compresses the vulcanizing medium, and the vulcanizing medium is filled into the capsule through the secondary pressurization passages (Y21 and Y22); case two: the valve B and the valve E are opened, the other valves are closed, when the second chamber pumps the vulcanizing medium from the gas storage device, the first chamber compresses the vulcanizing medium, and the vulcanizing medium is filled into the capsule through the secondary pressurization passages (Y23 and Y24).

11. The new energy tire curing system of claim 10, wherein the cyclical heating path operates under conditions one: the valve C and the valve H are opened, the other valves are closed, and when the second chamber fills the vulcanizing medium into the capsule through the circulating heating passage (R12), the vulcanizing medium in the capsule is pumped into the first chamber through the circulating heating passage (R11); case two: the valve B and the valve G are opened, the other valves are closed, and when the first chamber is filled with the vulcanizing medium through the circulating heating passage (R22), the vulcanizing medium in the capsule is pumped into the second chamber through the circulating heating passage (R21).

12. The new energy tire vulcanizing system according to claim 11, wherein when the primary recovery path is operated, the C valve, the D valve, the G valve and the F valve are opened, and the remaining valves are closed, and the vulcanizing medium of high temperature and high pressure in the bladder is recovered to the gas storage device through the primary recovery path (H1); when the secondary recovery path is in operation, the condition one: the valve C and the valve F are opened, the other valves are closed, and when the high-temperature and high-pressure vulcanizing medium in the capsule enters the first chamber through the secondary recovery passage (H21), the vulcanizing medium is compressed by the second chamber and is recovered to the gas storage device through the secondary recovery passage (H22); case two: the D valve and the G valve are opened, the other valves are closed, and when the high-temperature and high-pressure vulcanizing medium in the capsule enters the second chamber through the secondary recovery passage (H23), the first chamber compresses the vulcanizing medium to enable the vulcanizing medium to be recovered to the gas storage device through the secondary recovery passage (H24).

13. A method for vulcanizing a new energy tire by using a pressurization circulating pump is characterized by comprising the following steps:

providing a supercharging circulating pump with a first cavity and a second cavity, wherein when the supercharging circulating pump works, when the first cavity is in an air suction state, the second cavity is in an air discharge state, or when the first cavity is in an air discharge state, the second cavity is in an air suction state, and the first cavity and the second cavity sequentially and circularly reciprocate;

providing a plurality of switch valves for switching the gas flow direction;

providing a vulcanizing medium passage for gas flow, wherein the vulcanizing medium passage comprises a pressurization passage, a circulating heating passage and a vulcanizing medium recovery passage;

under the action of a pressurizing circulating pump and a switch valve, a vulcanizing medium is filled into the capsule through a pressurizing passage to realize pressurization; the vulcanizing medium is circularly heated through a circulating heating passage; and the vulcanizing medium in the capsule after the vulcanization is finished is recovered through the vulcanizing medium recovery passage.

Background

The traditional tire vulcanization method generally uses air, hot water and steam as media to fill air, hot water or steam into a water tire or a bladder in a tire mold. However, the method needs a huge boiler and a hot water treatment system, and not only occupies a large area, but also has high cost. At the same time, the vulcanization efficiency is low, the environment is polluted, and the service life of the bladder and the tire is reduced due to the thermal oxidation aging of the tire and the bladder caused by steam and superheated water.

Currently, many tire manufacturers search for a tire that is vulcanized using an inert gas such as nitrogen instead of air, superheated water, and steam, and for example, there is a conventional patent No. 200780045021.3 entitled "tire vulcanizer and tire vulcanizing method" which discloses a tire vulcanizer and a tire vulcanizing method capable of controlling the pressure and temperature of a heating and pressurizing medium supplied to an internal space of a green tire without being affected by mutual conditions. The specific working principle is that firstly, a vulcanizing medium is introduced into the bladder by the low-pressure air supply source 11 and is stretched, the green tire is shaped and kept, then the mold is closed, then air is supplied by the high-pressure air supply source 5, meanwhile, the high-pressure vulcanizing medium is preheated, then, high-temperature high-pressure vulcanizing gas is introduced into the bladder to vulcanize the green tire, after vulcanization, the vulcanizing medium needs to be discharged, then the bladder is taken out to prepare for the next vulcanization of the green tire, and the whole set of actions before the cycle is repeated after the green tire is replaced. Therefore, the design of the tire vulcanizer has the problem of waste of vulcanizing media, and the waste is particularly serious when the large-batch green tire vulcanization operation is carried out, which is not beneficial to cost reduction and efficiency improvement.

In order to solve the above technical problems, the applicant filed an invention patent on 31/12/2020, application No. 2020116419504 entitled "electrically heated tire vulcanizer," which discloses a technical solution for recycling a vulcanizing medium, but in this technical solution, a booster pump 313 and an electric blower or air pump 23 are required to realize pressurization and circulation of the vulcanizing medium, so that the cost is high.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a new energy tire vulcanizing system using a booster circulating pump, including: the gas storage device is used for supplying and recovering the vulcanizing medium; a mould for vulcanizing and shaping the green tyre; a capsule for receiving or releasing a vulcanization medium; the device also comprises a pressurization circulating pump with a first chamber and a second chamber; a sulfiding media path for gas flow; a valve assembly for switching a gas flow direction; wherein, the tire inflation stage: under the action of the valve assembly and the pressurization circulating pump, controlling the second chamber to be in a gas suction state from the gas storage device when the first chamber is in a gas discharge state to the capsule, or controlling the second chamber to be in a gas discharge state to the capsule when the first chamber is in a gas suction state from the gas storage device, and sequentially and circularly reciprocating the first chamber and the second chamber to realize the pressurization and expansion of the capsule so as to fully contact the green tire with the mold; and (3) tire vulcanization stage: under the action of a valve assembly and a pressurization circulating pump, controlling the second chamber to be in a capsule air suction state when the first chamber is in a capsule air discharge state, or controlling the second chamber to be in a capsule air discharge state when the first chamber is in a capsule air suction state, and sequentially and circularly reciprocating the first chamber and the second chamber to circularly heat a vulcanizing medium so as to finish vulcanizing the green tire; and (3) a tire deflation stage: after the vulcanization of the green tire is finished, under the action of the valve assembly and the booster circulating pump, the second cavity is controlled to be in a gas suction state from the capsule when the first cavity is in a gas discharge state to the gas storage device, or the second cavity is controlled to be in a gas discharge state to the gas storage device when the first cavity is in a gas suction state from the capsule, and the first cavity and the second cavity sequentially and circularly reciprocate to recover the vulcanization medium in the capsule to the gas storage device.

Preferably, the booster circulating pump comprises a cylinder body with two sealed ends; the piston is provided with a piston push rod and a piston head, and the piston push rod is connected with a first power source; the piston head and part of the piston push rod are sealed in the cylinder body, the piston head divides the sealed cylinder body into a first cavity and a second cavity which are independent, and air guide holes are formed in the sides of the first cavity and the second cavity.

Preferably, the booster circulating pump comprises a first piston pump with a first chamber and a second piston pump with a second chamber, and the first piston pump and the second piston pump are driven by a second power source simultaneously; wherein, air vents are arranged on the first chamber side and the second chamber side.

Preferably, the tyre deflation phase: after the vulcanization of the green tire is finished, the vulcanization medium in the capsule can be guided to be recycled to the gas storage device through the valve component, and then the residual vulcanization medium in the capsule is recycled to the gas storage device under the action of the valve component and the booster circulating pump.

Preferably, the vulcanizing medium passage comprises a pressurization passage, a circulating heating passage and a vulcanizing medium recovery passage; the bladder realizes pressurization through the pressurization passage, realizes vulcanization medium circulation heating through the circulation heating passage to vulcanize the green tire, and realizes the recovery of the vulcanization medium through the vulcanization medium recovery passage.

Preferably, the pressurizing passage comprises a primary pressurizing passage and a secondary pressurizing passage, and the capsule is firstly expanded and shaped through the primary pressurizing passage and then the pressure in the capsule reaches the vulcanization preset value through the secondary pressurizing passage.

Preferably, the vulcanizing medium recovery passage comprises a primary recovery passage and a secondary recovery passage, the vulcanizing medium in the capsule is firstly recovered to the gas storage device through the primary recovery passage, and then the residual vulcanizing medium is recovered to the gas storage device through the secondary recovery passage.

Preferably, the tyre vulcanisation stage: a heating element may be provided in the curing medium passage to cyclically heat the curing medium.

Preferably, the device also comprises a common gas storage device used for pumping negative pressure to the capsule so as to empty the vulcanization medium in the capsule.

Preferably, the valve assembly comprises an A valve, a B valve, a C valve, a D valve, an E valve, an F valve, a G valve and an H valve; when the primary pressurizing passage works, the valve A, the valve B, the valve E and the valve H are opened, the other valves are closed, and the vulcanizing medium enters the capsule from the gas storage device through the primary pressurizing passage (Y11; Y12); when the secondary boost passage is operating, case one: the valve A and the valve H are opened, the other valves are closed, when the first chamber pumps the vulcanizing medium from the gas storage device, the second chamber compresses the vulcanizing medium, and the vulcanizing medium is filled into the capsule through the secondary pressurization passages (Y21 and Y22); case two: the valve B and the valve E are opened, the other valves are closed, when the second chamber pumps the vulcanizing medium from the gas storage device, the first chamber compresses the vulcanizing medium, and the vulcanizing medium is filled into the capsule through the secondary pressurization passages (Y23 and Y24).

Preferably, when the circulation heating path is operated, the condition one is that: the valve C and the valve H are opened, the other valves are closed, and when the second chamber fills the vulcanizing medium into the capsule through the circulating heating passage (R12), the vulcanizing medium in the capsule is pumped into the first chamber through the circulating heating passage (R11); case two: the valve B and the valve G are opened, the other valves are closed, and when the first chamber is filled with the vulcanizing medium through the circulating heating passage (R22), the vulcanizing medium in the capsule is pumped into the second chamber through the circulating heating passage (R21).

Preferably, when the primary recovery path is operated, the valve C, the valve D, the valve G and the valve F are opened, and the other valves are closed, so that the high-temperature and high-pressure vulcanizing medium in the capsule is recovered to the gas storage device through the primary recovery path (H1); when the secondary recovery path is in operation, the condition one: the valve C and the valve F are opened, the other valves are closed, and when the high-temperature and high-pressure vulcanizing medium in the capsule enters the first chamber through the secondary recovery passage (H21), the vulcanizing medium is compressed by the second chamber and is recovered to the gas storage device through the secondary recovery passage (H22); case two: the D valve and the G valve are opened, the other valves are closed, and when the high-temperature and high-pressure vulcanizing medium in the capsule enters the second chamber through the secondary recovery passage (H23), the first chamber compresses the vulcanizing medium to enable the vulcanizing medium to be recovered to the gas storage device through the secondary recovery passage (H24).

The invention also provides a method for vulcanizing a new energy tire by using the pressurization circulating pump, which comprises the steps of providing the pressurization circulating pump with a first cavity and a second cavity, wherein when the pressurization circulating pump works, the second cavity is in an exhaust state when the first cavity is in an air suction state or in an air suction state when the first cavity is in an exhaust state, and the first cavity and the second cavity sequentially and circularly reciprocate; providing a plurality of switch valves for switching the gas flow direction; providing a vulcanizing medium passage for gas flow, wherein the vulcanizing medium passage comprises a pressurization passage, a circulating heating passage and a vulcanizing medium recovery passage; under the action of a pressurizing circulating pump and a switch valve, a vulcanizing medium enters the capsule through a pressurizing passage to realize pressurization; the vulcanizing medium is circularly heated through a circulating heating passage; and recovering the vulcanizing medium in the capsule after the vulcanization is finished through the vulcanizing medium recovery passage.

In summary, the new energy tire vulcanization system using the pressurization circulation pump disclosed by the invention mainly uses the pressurization circulation pump having the first chamber and the second chamber, and combines the valve assembly to realize that the same power source can be used for driving the pressurization circulation pump to work in the tire inflation stage, the tire vulcanization stage and the tire deflation stage, namely, the functions of synchronously realizing the inflation and the exhaust of the vulcanization medium are realized, and the new energy tire vulcanization system has the advantages of low cost, high efficiency and the like.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a single-cylinder dual-chamber supercharged circulating pump of the invention.

FIG. 2 is an overall schematic diagram of the pressurization circulating pump using a single cylinder and double cavities in the new energy tire vulcanization system of the invention.

FIG. 3 is a schematic view of the flow direction of the vulcanizing medium when the primary pressurizing passage (Y11; Y12) works in the new energy tire vulcanizing system.

FIG. 4 is a schematic view of the flow direction of the vulcanizing medium when the secondary pressurizing passage (Y21; Y22) works in the new energy tire vulcanizing system.

FIG. 5 is a schematic view of the flow direction of the vulcanizing medium when the secondary pressurizing passage (Y23; Y24) works in the new energy tire vulcanizing system.

FIG. 6 is a schematic view of the flow direction of the vulcanizing medium when the circulating heating path (R11; R12) in the new energy tire vulcanizing system of the invention is in operation.

FIG. 7 is a schematic view of the flow direction of the vulcanizing medium when the circulating heating path (R21; R22) in the new energy tire vulcanizing system of the invention is in operation.

Fig. 8 is a schematic view of the flow of the vulcanizing agent when the primary recovery passage (H1) is operated in the new energy tire vulcanizing system of the invention.

FIG. 9 is a schematic view showing the flow direction of the vulcanizing agent when the secondary recovery passage (H21; H22) is operated in the new energy tire vulcanizing system of the invention.

FIG. 10 is a schematic view showing the flow direction of the vulcanizing agent when the secondary recovery passage (H23; H24) is operated in the new energy tire vulcanizing system of the invention.

Fig. 11 is a schematic structural diagram of a first working state of the two-cylinder two-chamber supercharging circulation pump according to the present invention.

Fig. 12 is a structural schematic diagram of a second working state of the two-cylinder two-chamber supercharging circulating pump according to the present invention.

Fig. 13 is an overall schematic view of a pressurization circulating pump using a double-cylinder double-chamber in the new energy tire vulcanization system of the present invention.

Detailed Description

The technical solution in 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. The embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the examples of the present invention without any creative effort belong to the protection scope of the present invention.

The technical content disclosed by the invention is specifically described as follows, and is shown in attached figures 1 to 13. The invention discloses a new energy tire vulcanizing system 1 using a pressurizing circulating pump, which comprises: a gas storage device 10 for supplying and recovering a vulcanizing agent (such as pure nitrogen gas); a mold 20 for vulcanizing and shaping the green tire; a capsule 30 for receiving or releasing a vulcanization medium; it also comprises a booster circulation pump 40 having a first chamber 41 and a second chamber 42; and a sulfiding media passage for gas flow; and a valve assembly for switching a gas flow direction; wherein, the tire inflation stage: under the action of the valve assembly and the pressurizing circulation pump 40, controlling the second chamber 42 to be in the air suction state from the air storage device 10 when the first chamber 41 is in the air discharge state to the bladder 30 (i.e. the bladder 30 is inflated), or controlling the second chamber 42 to be in the air discharge state to the bladder 30 when the first chamber 41 is in the air suction state from the air storage device 10, and sequentially and cyclically reciprocating the first chamber 41 and the second chamber 42 (i.e. the first chamber 41 and the second chamber 42 work simultaneously and work in opposite states), so that the bladder 30 is pressurized and expanded to realize the sufficient contact and shaping of the green tire (not shown) and the mold 20; and (3) tire vulcanization stage: under the action of the valve assembly and the pressurization circulating pump 40, controlling the second chamber 42 to be in a suction state from the bladder 30 when the first chamber 41 is in a gas discharge state to the bladder 30, or controlling the second chamber 42 to be in a gas discharge state to the bladder 30 when the first chamber 41 is in a gas suction state from the bladder 30, and circularly and repeatedly performing the actions (namely, the first chamber 41 and the second chamber 42 work simultaneously and work in opposite states) in sequence by the first chamber 41 and the second chamber 42 to circularly heat the vulcanizing medium so as to finish the vulcanization of the green tire; and (3) a tire deflation stage: after the vulcanization of the raw tire is completed, under the action of the valve assembly and the pressurization circulating pump 40, the second chamber 42 is controlled to be in the air suction state from the bladder 30 when the first chamber 41 is in the air discharge state to the air storage device 10, or the second chamber 42 is controlled to be in the air discharge state to the air storage device 10 when the first chamber 41 is in the air suction state from the bladder 30, and the first chamber 41 and the second chamber 42 sequentially and cyclically reciprocate (that is, the first chamber 41 and the second chamber 42 work simultaneously and work in opposite states) to recover the vulcanization medium in the bladder 30 to the air storage device 10. The gas storage device 10 may be provided with a first heating element 101 for preheating the vulcanizing medium in the gas storage device 10, and a certain initial pressure, for example, 1MPa, may be preset in the gas storage device 10.

It can be seen from the above description that, the present invention mainly uses the pressurization circulating pump having the first chamber and the second chamber, and combines the valve assembly to realize that the vulcanization medium can be inflated and exhausted simultaneously in all of the tire inflation stage, the tire vulcanization stage and the tire deflation stage, i.e. the pressurization and circulation functions are realized, the pressurization and circulation functions realized by two or more pressurization pumps and air pumps in the prior art can be realized by using one pressurization circulating pump, and the first chamber and the second chamber continuously perform the suction or exhaust work, so the present invention has the advantages of low cost and high efficiency.

First embodiment

As shown in fig. 1 to 10, the supercharging circulation pump 40 in the present embodiment is a single-cylinder dual-cavity structure, which specifically includes a cylinder body 42 with two sealed ends; a piston 43 having a piston pusher and a piston head, the piston pusher being connected to the drive end of a first power source 45; the piston head and part of the piston push rod are sealed in the cylinder body, the piston head divides the sealed cylinder body into a first chamber 41 and a second chamber 42 which are independent, and air guide holes 46 are arranged on the sides of the first chamber 41 and the second chamber 42. The first power source 45 includes a motor 451, a lead screw 452, and a connecting member 453, the motor 451 drives the lead screw 452 to move so as to drive the connecting member 453 to reciprocate on the slide rail 456, and the connecting member 453 is a driving end, so that the piston 43 can reciprocate in the sealed cylinder 42 under the driving of the motor 451, and when the piston 43 moves toward the motor 451 (assuming that a chamber near the side of the motor 451 is the second chamber 42), the space of the second chamber 42 is reduced, that is, the second chamber 42 is in a compressed exhaust state; at the same time, when the piston 43 moves toward the motor 451 side, the space of the first chamber 41 is expanded, that is, the first chamber 41 is in the suction state. Similarly, when the piston 43 moves in a direction away from the motor 451 (assuming that the chamber on the side closer to the motor 451 is the second chamber 42), the first chamber 41 is in a compressed/exhausted state and the second chamber 42 is in an intake state. Therefore, when the piston 43 is driven to move by using only the same power source 45, the first chamber 41 and the second chamber 42 are in the suction state at one time and in the exhaust state at the other time, i.e., in the working state at one time. Therefore, the technical scheme of the invention has relatively low cost and high working efficiency. It should be noted that, in the present embodiment, the specific operation principle is described by taking the motor 451, the lead screw 452, and the connecting member 453 as an example, but the invention is not limited thereto.

In addition, the vulcanizing agent passage of the present invention may include a pressurizing passage (Y), a circulating heating passage (R), and a vulcanizing agent recovery passage (H). The capsule 30 is pressurized and shaped through a pressurizing passage (Y), the vulcanizing medium is circularly heated through a circulating heating passage (R), and the vulcanizing medium is recycled through a vulcanizing medium recycling passage (H). The pressurizing passage (Y) further comprises a primary pressurizing passage (Y11; Y12) and a secondary pressurizing passage (Y21 and Y22; Y23 and Y24), and the capsule 30 is expanded and shaped through the primary pressurizing passage and then the pressure in the capsule reaches a vulcanization preset value through the secondary pressurizing passage.

The invention is characterized in that in the tire inflation stage: the working principle of pressurizing the capsule 30 is specifically explained as follows: the valve assembly comprises a valve A, a valve B, a valve C, a valve D, a valve E, a valve F, a valve G and a valve H, wherein the valves can be switching valves such as electromagnetic valves; when the primary pressurizing passage (Y11; Y12) works, the valve A, the valve B, the valve E and the valve H are opened, the other valves are closed, and the vulcanizing medium is directly filled into the capsule 30 by the gas storage device 10 through the primary pressurizing passage Y11 and the primary pressurizing passage Y12 respectively to ensure that the capsule is expanded and shaped, as shown in figure 2; when the secondary supercharging channel works, the air is sucked by the first chamber 41 and exhausted by the second chamber 42 according to different use conditions, namely, the first condition is that the specific actions are as follows: the a valve and the H valve are opened, the other valves are closed, and when the first chamber 41 pumps the vulcanizing medium from the gas storage device 10, the second chamber 42 compresses the vulcanizing medium, so that the vulcanizing medium is filled into the capsule 30 through the secondary pressurizing passages Y21 and Y22, as shown in fig. 3; in case two, the first chamber 41 may exhaust air and the second chamber 42 may suck air, and the specific operation is as follows: the B valve and the E valve are opened and the remaining valves are closed, and when the second chamber 42 draws the vulcanizing medium from the gas storage 10, the first chamber 41 compresses the vulcanizing medium, so that the vulcanizing medium is filled into the bladder 30 through the secondary pressurizing passages Y23 and Y24, as shown in fig. 4. Therefore, the first chamber 41 and the second chamber 42 are sequentially and cyclically reciprocated by the first power source 45 and the valve assembly until the pressure in the capsule 30 is increased to a predetermined value, thereby completing the pressurization and inflation operation.

Further, in the tyre vulcanisation stage after pressurization of the bladder 30 is completed: the working principle of the circulation heating passage is specifically explained as follows: similarly, according to different usage conditions, the first chamber 41 may suck air and the second chamber 42 may exhaust air, that is, the first condition is as follows: the valve C and the valve H are opened, the other valves are closed, the vulcanizing medium in the capsule 30 is pumped into the first chamber 41 through the circulating heating passage R11 while the second chamber 42 is filled with the vulcanizing medium through the circulating heating passage R12, and as shown in FIG. 5; in case two, the first chamber 41 may exhaust air and the second chamber 42 may suck air, and the specific operation is as follows: the B and G valves are opened and the remaining valves are closed, and the vulcanization medium in the bladder 30 is drawn into the second chamber 42 through the circulation heating passage R21 while the first chamber 41 is filled with the vulcanization medium through the circulation heating passage R22, as shown in fig. 6. Therefore, the first chamber 41 and the second chamber 42 are sequentially and circularly reciprocated under the action of the first power source 45 and the valve assembly, so that the vulcanizing medium is always in a circular motion state, and the vulcanizing operation of the green tire is completed. Furthermore, the tyre vulcanisation stage: a second heating element 50 may also be provided in the curing medium path to improve the efficiency of the cyclic heating of the curing medium.

Preferably, in the tire deflation stage, after the vulcanization of the green tire is completed, the vulcanization medium in the bladder can be guided to be recycled to the gas storage device through the valve component, and then the residual vulcanization medium in the bladder can be recycled to the gas storage device under the action of the valve component and the pressurization circulating pump. Specifically, the sulfurized medium recovering path of the present invention may include a primary recovering path (H1) and a secondary recovering path (H21 and H22; and H23 and H24), the sulfurized medium in the capsule is first recovered to the gas storage device 10 through the primary recovering path H1, and then the residual sulfurized medium is recovered to the gas storage device 10 through the secondary recovering paths H21 and H22 or H23 and H24. Furthermore, the invention may be provided with a common gas storage means (not shown), such as a negative pressure tank, for evacuating the capsule from the curing medium by applying a negative pressure to the capsule.

The working principle of the vulcanizing medium recovery passage is specifically explained as follows: when the primary recovery passage (H1) operates, the C valve, the D valve, the G valve, and the F valve are opened, and the remaining valves are closed, and then a part of the high-temperature and high-pressure vulcanizing medium in the bladder 30 is recovered to the gas storage device 10 through the primary recovery passage H1; when the secondary recovery passage is operated, the first chamber 41 may suck air and the second chamber 42 may exhaust air according to different use conditions, that is, the first condition specifically includes the following actions: the valve C and the valve F are opened, the other valves are closed, when the high-temperature and high-pressure vulcanizing medium in the capsule enters the first chamber through the secondary recovery passage H21, the second chamber compresses the vulcanizing medium to enable the vulcanizing medium to be recovered to the gas storage device 10 through the secondary recovery passage H22, as shown in the attached figure 8; in case two, the first chamber 41 may exhaust air and the second chamber 42 may suck air, and the specific operation is as follows: the D valve and the G valve are opened, the other valves are closed, and when the high-temperature and high-pressure vulcanizing medium in the capsule enters the second chamber 42 through the secondary recovery passage H23, the first chamber 41 compresses the vulcanizing medium to recover the vulcanizing medium to the gas storage device 10 through the secondary recovery passage H24, as shown in fig. 9. Therefore, the first chamber 41 and the second chamber 42 are sequentially and cyclically reciprocated under the action of the first power source 45 and the valve assembly until the vulcanizing medium in the bladder 30 is recovered to the air storage device 10, thereby completing the air release operation of the tire.

Second embodiment

As shown in fig. 11 to 13, the second embodiment of the present invention has substantially the same principle as the first embodiment, except for the structure of the supercharging circulating pump 40, the supercharging circulating pump 40 in the second embodiment is a two-cylinder dual-chamber structure, that is, it includes a first piston pump 40A having a first chamber 41 and a second piston pump 40B having a second chamber 42, and the first piston pump 40A and the second piston pump 40B are both driven by a first power source 45 at the same time, so as to achieve the same function as the first embodiment, that is, the first chamber 41 and the second chamber 42 are in a suction state and the other chamber is in a discharge state at the same time; as shown in fig. 11 to 12, specifically, the first power source 45 includes a motor 451, a lead screw 452, and a connecting member 453, the motor 451 drives the lead screw 452 to move so as to drive the connecting member 453 to reciprocate on the slide rail 456, the connecting member 453 is a driving end, the connecting member 453 is simultaneously fixedly connected to the piston 43A and the piston 43B, and the first chamber 41 and the second chamber 42 are disposed in opposite directions. Therefore, the piston 43A and the piston 43B can reciprocate in the respective cylinders 42A and 42B under the driving of the motor 451, that is, the first piston pump 40A and the second piston pump 40B are driven by the same power source to work simultaneously, so as to achieve the purpose that the first chamber 41 and the second chamber 42 are in the suction state and the other chamber is in the exhaust state at the same time. Wherein, the air holes 46 are also disposed on the first chamber 41 and the second chamber 42.

In summary, the new energy tire vulcanizing system using the pressurization circulating pump disclosed by the invention mainly utilizes the pressurization circulating pump having the first chamber and the second chamber, and combines the valve assembly to realize that the same power source can be used for driving the pressurization circulating pump to work in the tire inflation stage, the tire vulcanization stage and the tire deflation stage, so that the functions of synchronously realizing the inflation and the exhaust of the vulcanizing medium can be realized. The invention integrates the supercharging and circulating functions of the booster pump and the electric blower in the prior art into the same supercharging and circulating pump, and has the advantages of low cost, high working efficiency and the like.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included therein.