Tire vulcanization system with cooling pipeline and control method

Abstract

The invention provides a tire vulcanization system with a cooling pipeline and a temperature control method. The tire vulcanization system comprises a vulcanization station with a capsule, a medium circulation device; the capsule air inlet pipeline and the capsule air outlet pipeline are respectively communicated with the capsule, and the medium circulating device is respectively communicated with the capsule air inlet pipeline and the capsule air outlet pipeline; the device further comprises an inflation pipeline and an exhaust pipeline. Wherein a heating pipeline for heating a vulcanizing medium and a cooling pipeline for conducting the vulcanizing medium are arranged on the capsule air inlet pipeline in parallel, a heating element is arranged on the heating pipeline, and a valve element is arranged on the cooling pipeline. According to the invention, the cooling pipeline with the valve element is matched with the heating pipeline with the heating element, and the cooling pipeline is opened through the control system according to different requirements, so that the temperature of the vulcanizing medium entering the capsule is adjusted, the temperature change in the capsule is smaller and more stable, the tire vulcanization is more uniform, and the tire quality is improved.

Description

Technical Field

[0001] The present invention relates to a tire vulcanization system using inert gas (such as pure nitrogen) as a vulcanization medium for heating, and more particularly to a tire vulcanization system with a cooling pipeline and a control method. Background Art

[0002] In the current tire vulcanization system, during the vulcanization process of the tire, the vulcanization medium needs to reach a certain temperature and pressure in the bladder before cyclic vulcanization can be carried out. Figure 1 The following is a schematic diagram of the temperature curve of the vulcanizing medium in the capsule during vulcanization in the existing vulcanization system. Therefore, before the vulcanizing medium is circulated for vulcanization, Figure 1 The time period from t1 to t3 shown in the figure requires the introduction of high-pressure vulcanization medium into the tire vulcanization system, and the high-pressure vulcanization medium is heated by the heating element, so that the temperature in the capsule rises rapidly to the required temperature T2 and pressure requirements. However, in the process of introducing the high-pressure vulcanization medium into the capsule, since the high-pressure vulcanization medium flows very quickly, it will quickly take away a large amount of heat from the heating element, so that the temperature of the vulcanization medium gas in the capsule will rise rapidly to temperature T3 in the time period from t1 to t2, and then drop to temperature T2 at time t3, that is, there is a situation where the temperature fluctuation of the vulcanization medium in the capsule is relatively large. When the temperature fluctuation of the vulcanization medium is large, it may cause uneven vulcanization of the tire, thereby affecting the vulcanization quality. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a tire vulcanization system with a cooling pipeline, including a vulcanization station for vulcanizing tires, the vulcanization station including a mold for detachably accommodating a raw tire, and a capsule arranged inside the raw tire during the vulcanization operation; a medium circulation device for circulating the inert gas vulcanization medium; and a capsule air inlet pipeline and a capsule air outlet pipeline respectively connected to the capsule, the medium circulation device is respectively connected to the capsule air inlet pipeline and the other end of the capsule air outlet pipeline; also includes an inflation pipeline connected to the capsule air inlet pipeline, and an exhaust pipeline connected to the capsule air outlet pipeline, wherein a heating pipeline for heating the vulcanization medium and a cooling pipeline for conducting the vulcanization medium are arranged in parallel on the capsule air inlet pipeline, a heating element is arranged on the heating pipeline, and a valve element is arranged on the cooling pipeline.

[0004] Preferably, it also includes a temperature measuring element arranged on the capsule air inlet pipeline, wherein the temperature measuring element is arranged on one end of the capsule air inlet pipeline close to the capsule.

[0005] Preferably, it also includes a circulating air inlet pipeline and a circulating air outlet pipeline, one end of the circulating air inlet pipeline is connected to the medium circulation device, and the other end of the circulating air inlet pipeline is connected to the capsule air outlet pipeline; one end of the circulating air outlet pipeline is connected to the medium circulation device, and the other end of the circulating air outlet pipeline is connected to the capsule air inlet pipeline.

[0006] Preferably, the vulcanization station includes a first vulcanization station and a second vulcanization station, the first vulcanization station has a first capsule, the second vulcanization station has a second capsule, the capsule air inlet pipeline includes a first capsule air inlet pipeline and a second capsule air inlet pipeline, the capsule air outlet pipeline includes a first capsule air outlet pipeline and a second capsule air outlet pipeline, the first capsule is respectively connected to the first capsule air inlet pipeline and the first capsule air outlet pipeline, and the second capsule is respectively connected to the second capsule air inlet pipeline and the second capsule air outlet pipeline; a first heating pipeline and a first cooling pipeline are arranged in parallel on the first capsule air inlet pipeline, and a second heating pipeline and a second cooling pipeline are arranged in parallel on the second capsule air inlet pipeline.

[0007] Preferably, the circulating air inlet pipeline includes a first circulating air inlet pipeline and a second circulating air inlet pipeline, the first circulating air inlet pipeline is connected to the first capsule air outlet pipeline, the second circulating air inlet pipeline is connected to the second capsule air outlet pipeline, wherein the first circulating air inlet pipeline and the second circulating air inlet pipeline are connected in series, and the medium circulation device is connected to the first circulating air inlet pipeline.

[0008] Preferably, the circulating air outlet pipeline includes a first circulating air outlet pipeline and a second circulating air outlet pipeline, the first circulating air outlet pipeline is connected to the first capsule air inlet pipeline, the second circulating air outlet pipeline is connected to the second capsule air inlet pipeline, wherein the first circulating air outlet pipeline and the second circulating air outlet pipeline are connected in series, and the medium circulation device is connected to the first circulating air outlet pipeline.

[0009] Preferably, the circulating air outlet pipeline includes a first circulating air outlet pipeline and a second circulating air outlet pipeline, the first circulating air outlet pipeline is connected to the first capsule air inlet pipeline, the second circulating air outlet pipeline is connected to the second capsule air inlet pipeline, and the medium circulation device is respectively connected to the first circulating air outlet pipeline and the second circulating air outlet pipeline.

[0010] The present invention also includes a control method for a tire vulcanization system having a cooling pipeline, which comprises the following steps: S1: introducing low-pressure vulcanizing medium into the bladder to shape the green tire; S2: introducing the high-pressure vulcanization medium into the vulcanization system through the heating pipeline in the high-pressure vulcanization medium charging pipeline and the capsule air inlet pipeline and heating the high-pressure vulcanization medium, so that the high-temperature and high-pressure vulcanization medium enters the capsule to increase the temperature of the capsule; S3: The high-temperature and high-pressure vulcanization medium is circulated and vulcanized in a loop formed by a medium circulation device, a capsule air inlet pipeline, a capsule, and a capsule air outlet pipeline; S4: Recover or discharge the sulfiding medium through the exhaust pipe; Among them, in any step of S2 and S3, the temperature of the vulcanization medium after being heated by the heating pipeline is detected in real time, and the real-time detected temperature of the vulcanization medium is compared with the threshold value through the control system. When the real-time detected temperature of the vulcanization medium is greater than the threshold value, the cooling pipeline in the capsule air inlet pipeline is opened; when the real-time detected temperature of the vulcanization medium is less than or equal to the threshold value, the cooling pipeline is not opened.

[0011] Preferably, the temperature of the vulcanizing medium detected in real time is adjusted by adjusting the opening time of the cooling pipeline or the flow rate of the vulcanizing medium passing through the cooling pipeline.

[0012] Preferably, when the real-time detected sulfurization medium temperature TC1 is greater than the threshold TC0, and the difference between the sulfurization medium temperature TC1 and the threshold TC0 is T0, the cooling pipeline is opened for a corresponding time t.

[0013] Preferably, when the real-time detected temperature TC1 of the vulcanizing medium is greater than the threshold TC0, the cooling pipeline is opened until the temperature TC1 of the vulcanizing medium is equal to the threshold TC0.

[0014] Preferably, when the real-time detected temperature TC1 of the vulcanizing medium is greater than the threshold value TC0, the flow rate of the vulcanizing medium passing through the cooling pipeline is adjusted until the real-time detected temperature TC1 of the vulcanizing medium is equal to the threshold value TC0.

[0015] It can be known from the above disclosed technical contents that a tire vulcanization system with a cooling pipeline provided by the present invention is provided. By setting a cooling pipeline with a valve element and a heating pipeline with a heating element, the control system opens the cooling pipeline according to different needs, thereby adjusting the temperature of the vulcanization medium entering the capsule, so that the temperature change in the capsule is smaller and more stable, so that the tire vulcanization is more uniform, and the tire vulcanization quality is improved. In a tire vulcanization system with two vulcanization stations, through the first circulation outlet pipeline and the second circulation outlet pipeline respectively connected to the medium circulation device, during the circulation vulcanization process, the opening and closing of the respective cooling pipeline and the heating pipeline can be better coordinated, and the temperature of the first capsule and the second capsule can be controlled respectively, so as to better meet the temperature requirements. The present invention also provides a control method for a tire vulcanization system with a cooling pipeline, by comparing the real-time detected vulcanization medium temperature with a threshold value, so as to determine under what circumstances to open the cooling pipeline; and the real-time detected vulcanization medium temperature can be adjusted according to the opening time of the cooling pipeline or the size of the vulcanization medium flow through the cooling pipeline, so that the temperature change of the vulcanization medium during the vulcanization process is more stable, and the temperature requirements are better met. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic diagram of the temperature curve of the vulcanizing medium in the bladder during vulcanization in the existing vulcanization system.

[0017] Figure 2 The figure is a schematic diagram of a tire vulcanization system with a cooling pipeline according to the present invention.

[0018] Figure 3 The present invention is a schematic diagram of a tire vulcanization system with two vulcanization stations, wherein the medium circulation device is connected to the second vulcanization station via a first circulation air outlet pipeline and a second circulation air outlet pipeline arranged in series.

[0019] Figure 4 The present invention is a schematic diagram of a tire vulcanization system with two vulcanization stations, wherein the medium circulation device is directly connected to the second vulcanization station via a second circulation air outlet pipeline.

[0020] Figure 5 The present invention is a flowchart of a first embodiment of a control method for a tire vulcanization system with a cooling pipeline.

[0021] Figure 6 This is a flow chart of a second embodiment of a control method for a tire vulcanization system with a cooling pipeline according to the present invention.

[0022] Figure 7 The present invention is a flowchart of a third embodiment of the control method of the tire vulcanization system with a cooling pipeline. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0024] See attached Figures 2 to 4As shown, the present invention discloses a tire vulcanization system 1 (hereinafter referred to as the vulcanization system) with a cooling pipeline, comprising a vulcanization station 10 for vulcanizing tires, the vulcanization station comprising a mold 11 for detachably accommodating a raw tire (not shown), and a capsule 12 arranged inside the raw tire during the vulcanization operation, the capsule 12 being provided with a capsule air inlet 121 and a capsule air outlet 122; a medium circulation device 20 for circulating the inert gas vulcanization medium (hereinafter referred to as the vulcanization medium), the medium circulation device 20 being any device that can circulate the vulcanization medium, such as a fan, a blower or a circulation pump; and a capsule air inlet pipeline 30 connected to the capsule air inlet 121, a capsule air outlet pipeline 30 connected to the capsule air outlet 122, and a capsule air inlet pipeline 30 connected to the capsule air inlet 121. The capsule air inlet pipeline 30 is connected to the capsule air outlet pipeline 40, and the medium circulation device 20 is connected to the capsule air inlet pipeline 30 and the capsule air outlet pipeline 40 respectively; it also includes an inflation pipeline 50 connected to the capsule air inlet pipeline 30, and an exhaust pipeline 60 connected to the capsule air outlet pipeline 40, the inflation pipeline 50 is used to supply the vulcanization medium to the vulcanization system, and the exhaust pipeline 60 is used to recover or discharge the vulcanization medium in the vulcanization system; wherein the capsule air inlet pipeline 30 is provided with a heating pipeline 70 and a cooling pipeline 80 for heating the vulcanization medium in parallel, the heating pipeline 70 is provided with a heating element 71, and the cooling pipeline 80 is provided with a valve element 81, the heating pipeline 70 is used to heat the vulcanization medium, and the cooling pipeline 80 is used to conduct the vulcanization medium at normal temperature or low temperature. Through the above arrangement, during the green tire vulcanization operation, the cooling pipeline 80 can be opened as needed, so that part of the vulcanization medium at room temperature or low temperature is diverted through the cooling pipeline 80 without being heated by the heating pipeline 70, thereby reducing the temperature of the vulcanization medium entering the capsule 12, making the temperature change in the capsule 12 smaller and smoother.

[0025] The valve element 81 of the present invention may be a switch valve, and the switch valve 81 may be turned on as needed, that is, the temperature of the vulcanizing medium entering the capsule 12 may be controlled by the time the switch valve 81 is turned on. That is, in the process of introducing the high-pressure vulcanizing medium into the capsule 12, the switch valve 81 is turned on for t time and then closed, that is, during the t time, part of the vulcanizing medium that has not been heated by the heating element 71 enters the capsule air intake line 30 through the cooling pipeline 80, and then enters the capsule 12 after mixing with another part of the high-temperature vulcanizing medium that has been heated by the heating element 71, thereby reducing the temperature of the vulcanizing medium entering the capsule 12.

[0026] The valve element 81 of the present invention may also be a flow valve, and the temperature of the vulcanizing medium entering the capsule 12 can be controlled by adjusting the opening of the flow valve 81. That is, in the process of introducing the high-pressure vulcanizing medium into the capsule 12, the amount of the vulcanizing medium passing through the cooling pipeline 80 is adjusted by adjusting the opening of the flow valve 81, thereby adjusting the temperature of the vulcanizing medium after the room-temperature vulcanizing medium passing through the cooling pipeline 80 and the high-temperature vulcanizing medium passing through the heating pipeline 70 are mixed.

[0027] like Figure 2 As shown, preferably, a temperature measuring element W is provided at a position near the capsule air inlet 121 on the capsule air inlet pipeline 30 described in the present invention, which is used to measure the real-time temperature of the vulcanizing medium on the capsule air inlet pipeline 30 after being heated by the heating element 71 and before entering the capsule 12, and the detected real-time temperature of the vulcanizing medium on the capsule air inlet pipeline 30 is compared with a threshold value (the threshold value refers to the ideal temperature that the vulcanizing medium at the position where the corresponding temperature measuring element W is located under an ideal state of stable temperature change) through a control system (not shown), so as to confirm whether it is necessary to open the cooling pipeline 80.

[0028] The present invention also includes a circulating air inlet pipeline 91 and a circulating air outlet pipeline 92, wherein one end of the circulating air inlet pipeline 91 is connected to the medium circulation device 20, and the other end of the circulating air inlet pipeline 91 is connected to the capsule air outlet pipeline 40; one end of the circulating air outlet pipeline 92 is connected to the medium circulation device 20, and the other end of the circulating air outlet pipeline 92 is connected to the capsule air inlet pipeline 30.

[0029] The inflation pipeline 50 of the present invention comprises a low-pressure vulcanization medium inflation pipeline 51 and a high-pressure vulcanization medium inflation pipeline 52 arranged in parallel, the low-pressure vulcanization medium inflation pipeline 51 and the high-pressure vulcanization medium inflation pipeline 52 are respectively connected to an air source (not shown), the low-pressure vulcanization medium inflation pipeline 51 is used to fill the capsule 12 with a low-pressure vulcanization medium, and the high-pressure vulcanization medium inflation pipeline 52 is used to fill the capsule 12 with a high-pressure vulcanization medium. The exhaust pipeline 60 comprises a vulcanization medium recovery pipeline 61, a vacuum pipeline 62 and an emptying pipeline 63 arranged in parallel, the vulcanization medium recovery pipeline 61 is used to recover the vulcanization medium, and the vulcanization medium can be recovered into an air source or a separate recovery device (not shown); the emptying pipeline 63 is used to discharge the vulcanization medium that cannot be recovered; the vacuum pipeline 62 is used to form a negative pressure in the vulcanization system, so as to empty the vulcanization medium that may be lower than the standard atmospheric pressure.

[0030] like Figure 3 and 4As shown, as another embodiment of the present invention, the tire vulcanization system of the present invention includes a double-station vulcanization station, that is, a first vulcanization station 10A and a second vulcanization station 10B, the first vulcanization station 10A has a first capsule 12A, the second vulcanization station 10B has a second capsule 12B, the capsule air inlet pipeline 30 includes a first capsule air inlet pipeline 30A and a second capsule air inlet pipeline 30B, the capsule air outlet pipeline 40 includes a first capsule air outlet pipeline 40A and a second capsule air outlet pipeline 40B, the first capsule 12A is respectively connected to the first capsule air inlet pipeline 30A and the first capsule air outlet pipeline 40A, and the second capsule 12B is respectively connected to the second capsule air inlet pipeline 30B and the second capsule air outlet pipeline 40B; the first capsule air inlet pipeline 30A is provided with a first heating pipeline 70A and a first cooling pipeline 80A in parallel, and the second capsule air inlet pipeline 30B is provided with a first heating pipeline 70A and a first cooling pipeline 80A in parallel. A second heating pipeline 70B and a second cooling pipeline 80B are connected, a first heating element 71A is provided on the first heating pipeline 70A, a first valve element 81A is provided on the first cooling pipeline 80A, a second heating element 71B is provided on the second heating pipeline 70B, and a second valve element 81B is provided on the second cooling pipeline 80B. The control system is used to control the conduction of the first valve element 81A and the second valve element 81B respectively, thereby controlling the opening and closing of the first cooling pipeline 80A and the second cooling pipeline 80B respectively, thereby controlling the temperature of the vulcanization medium entering the first capsule 12A and the second capsule 12B respectively, so that the temperature of the vulcanization medium entering the first capsule 12A and the second capsule 12B will not rise too high, so that the temperature change of the vulcanization medium in the first capsule 12A and the second capsule 12B during the vulcanization process is smoother, and better meets their respective vulcanization requirements.

[0031] The circulating air inlet pipeline 91 includes a first circulating air inlet pipeline 91A and a second circulating air inlet pipeline 91B, wherein the first circulating air inlet pipeline 91A is connected to the first capsule air outlet pipeline 40A, and the second circulating air inlet pipeline 91B is connected to the second capsule air outlet pipeline 40B, wherein the first circulating air inlet pipeline 91A and the second circulating air inlet pipeline 91B are connected in series, and the medium circulation device 20 is connected to the first circulating air inlet pipeline 91A, and the medium circulation device 20 is connected to the first capsule air outlet pipeline 40A through the first circulating air inlet pipeline 91A, and the medium circulation device 20 is connected to the second capsule air outlet pipeline 40B after passing through the first circulating air inlet pipeline 91A and the second circulating air inlet pipeline 91B.

[0032] like Figure 3As shown, the circulating air outlet pipeline 92 includes a first circulating air outlet pipeline 92A and a second circulating air outlet pipeline 92B, the first circulating air outlet pipeline 92A is connected to the first capsule air inlet pipeline 30A, and the second circulating air outlet pipeline 92B is connected to the second capsule air inlet pipeline 30B, wherein the first circulating air outlet pipeline 92A and the second circulating air outlet pipeline 92B are connected in series, the medium circulation device 20 is connected to the first circulating air outlet pipeline 92A, the medium circulation device 20 is connected to the first capsule air inlet pipeline 30A through the first circulating air outlet pipeline 92A, and the medium circulation device 20 is connected to the second capsule air inlet pipeline 30B after passing through the first circulating air outlet pipeline 92A and the second circulating air outlet pipeline 92B.

[0033] In the above embodiment, when the vulcanization medium is in the process of cyclic vulcanization, the vulcanization medium entering the second capsule 12B will share the first cyclic air outlet pipeline 92A with the vulcanization medium entering the first capsule 12A. Therefore, during the cyclic vulcanization process, there is no way to completely achieve independent control of the temperature and pressure of the vulcanization medium in the first capsule 12A and the second capsule 12B, so as to better meet the temperature and pressure requirements of each capsule. Figure 4 As shown, in another embodiment, the first circulation outlet pipeline 92A and the second circulation outlet pipeline 92B can be connected in parallel, and the medium circulation device 20 is respectively connected to the first circulation outlet pipeline 92A and the second circulation outlet pipeline 92B, and the medium circulation device 20 is connected to the first capsule inlet pipeline 30A through the first circulation outlet pipeline 92A, and the medium circulation device 20 is connected to the second capsule inlet pipeline 30B through the second circulation outlet pipeline 92B. Through the above arrangement, the temperature and pressure in the first capsule 12A and the second capsule 12B can be better controlled separately during the cyclic vulcanization process.

[0034] It should be noted that in the attached Figure 3 and 4 In the schematic diagram of the tire vulcanization system with a dual-station cooling pipeline, the first valve element 81A on the first cooling pipeline 80A is only illustrated as a switch valve, and the second valve element 81B on the second cooling pipeline 80B is only illustrated as a proportional valve. Of course, the first valve element 81A on the first cooling pipeline 80A can also be a proportional valve, and the second valve element 81B on the second cooling pipeline 80B can also be a switch valve.

[0035] No matter the above-mentioned first circulation air outlet pipeline 92A and the second circulation air outlet pipeline 92B are connected in series or in parallel, the first capsule 12A and the second capsule 12B are connected in parallel with the medium circulation device 20, that is, the first capsule 12A can be individually subjected to circulation vulcanization of the vulcanization medium through the medium circulation device 20, the first circulation air outlet pipeline 92A, the first capsule air inlet pipeline 30A, the first capsule air outlet pipeline 40A and the first circulation air inlet pipeline 91A. The second capsule 12B is subjected to circulation vulcanization of the vulcanization medium alone through the medium circulation device 20, the first circulation air outlet pipeline 92A, the second circulation air outlet pipeline 92B, the second capsule air inlet pipeline 30B, the second capsule air outlet pipeline 40B, the second circulation air inlet pipeline 91B and the first circulation air inlet pipeline 91A, or the second capsule 12B is subjected to circulation vulcanization of the vulcanization medium alone through the medium circulation device 20, the second circulation air outlet pipeline 92B, the second capsule air inlet pipeline 30B, the second capsule air outlet pipeline 40B, the second circulation air inlet pipeline 91B and the first circulation air inlet pipeline 91A.

[0036] The tire vulcanization system of the present invention may further include a series-parallel switching pipeline 93 provided with a first switch valve F1 and a second switch valve F2 provided on the first capsule air outlet pipeline 40A, so that the circulation vulcanization of the vulcanization medium for the first capsule 12A and the second capsule 12B in series connection can be realized as needed. By closing the second switch valve F2 on the first capsule air outlet pipeline 40A, the first switch F1 valve on the series-parallel switching pipeline 93 is turned on, and the circulation vulcanization of the vulcanization medium for the first capsule 12A and the second capsule 12B is carried out simultaneously through the medium circulation device 20, the first circulation air outlet pipeline 92A, the first capsule air inlet pipeline 30A, the first capsule air outlet pipeline 40A, the series-parallel switching pipeline 93, the second circulation air outlet pipeline 92B, the second capsule air inlet pipeline 30B, the second capsule air outlet pipeline 40B, the second circulation air inlet pipeline 91B and the first circulation air inlet pipeline 91A.

[0037] The cyclic vulcanization of the vulcanizing medium can be carried out in the above-mentioned series or parallel connection mode as required.

[0038] The low-pressure vulcanization medium inflation pipeline 51 described in the present invention also includes a first low-pressure vulcanization medium inflation pipeline 51A and a second low-pressure vulcanization medium inflation pipeline 51B. The first low-pressure vulcanization medium inflation pipeline 51A is connected to the first capsule air inlet pipeline 30A, and the second low-pressure vulcanization medium inflation pipeline 51B is connected to the second capsule air inlet pipeline 30B. The first capsule 12A is inflated and shaped by the separate first low-pressure vulcanization medium inflation pipeline 51A and the second capsule 12B is inflated and shaped by the separate second low-pressure vulcanization medium inflation pipeline 51B to meet the different usage conditions of the capsules.

[0039] like Figures 5 to 7 As shown, the present invention also discloses a control method for a tire vulcanization system with a cooling pipeline, which includes the following steps: S1: introducing a low-pressure vulcanization medium into a capsule 12 through a low-pressure vulcanization medium inflation pipeline 51 and a capsule air inlet pipeline 30 to shape the green tire; S2: introducing a high-pressure vulcanization medium into the vulcanization system through a high-pressure vulcanization medium inflation pipeline 52 and a heating pipeline 70 in the capsule air inlet pipeline 30 and heating the high-pressure vulcanization medium, so that the high-temperature and high-pressure vulcanization medium enters the capsule 12 to heat the capsule 12; S3: the high-temperature and high-pressure vulcanization medium is circulated and vulcanized in a loop formed by a medium circulation device 20, a capsule air inlet pipeline 30, a capsule 12, and a capsule air outlet pipeline 40; S4: recovering or emptying the vulcanization medium through an exhaust pipeline 60; wherein, in step S2 or S, the real-time The vulcanization medium temperature TC1 after being heated by the heating pipeline 70 (i.e., after being heated by the heating pipeline 70 on the capsule air inlet pipeline 30 and before entering the capsule 12) is detected, and the real-time detected vulcanization medium temperature TC1 is compared with the threshold value TC0 (the threshold value TC0 is the ideal temperature that should be reached at the corresponding detection position in step S2 or step S3 under the ideal state of stable temperature change, which can be a certain temperature value or a certain temperature range) through the control system to determine whether the vulcanization medium temperature TC1 is greater than the threshold value TC0, thereby controlling the opening of the cooling pipeline 80 in the capsule air inlet pipeline 30. When the real-time detected vulcanization medium temperature TC1 is greater than the threshold value TC0, the cooling pipeline 80 is opened; when the real-time detected vulcanization medium temperature TC1 is less than or equal to the threshold value TC0, the cooling pipeline 80 is not opened.

[0040] A switch valve 81 may be provided on the cooling pipeline 80. When the real-time detected temperature TC1 of the vulcanizing medium is greater than the threshold value TC0, the switch valve 81 is turned on to open the cooling pipeline 80. Then, part of the high-pressure vulcanizing medium will pass through the heating pipeline 70 having the heating element 71 to heat the high-pressure vulcanizing medium, and another part of the high-pressure vulcanizing medium will pass through the cooling pipeline 80 to maintain the original temperature. After the vulcanizing media of different temperatures in the heating pipeline 70 and the cooling pipeline 80 are mixed, the temperature will be lower than the temperature of the vulcanizing medium that has completely passed through the heating pipeline 70, thereby reducing the temperature of the vulcanizing medium entering the capsule 12.

[0041] like Figure 5As shown, specifically, when the real-time detected sulfurization medium temperature TC1 is greater than the threshold value TC0, the cooling pipeline 80 is opened, and the difference T0 between the sulfurization medium temperature TC1 and the threshold value TC0 is compared, so that the switch valve 81 corresponding to the time length t is turned on to open the cooling pipeline 80. That is, the cooling pipeline 80 can be turned on for different time lengths according to different sulfurization medium temperatures. When the difference T0 between the real-time detected sulfurization medium temperature TC1 and the threshold value TC0 is large, the switch valve 81 can be turned on for a long time to open the cooling pipeline 80; when the difference T0 between the real-time detected sulfurization medium temperature TC1 and the threshold value TC0 is small, the switch valve 81 can be turned on for a short time to open the cooling pipeline 80. Before mass production, the corresponding relationship between the difference T0 and the opening time t of the cooling pipeline 80 can be tested by debugging, so that during the mass production process, the opening time of the cooling pipeline is adjusted according to the difference T0, so that the temperature of the sulfurization medium meets the requirements.

[0042] like Figure 6 As shown, when the real-time detected vulcanization medium temperature TC1 is greater than the threshold value TC0, the switch valve 81 can also be turned on to open the cooling pipeline 80 until the vulcanization medium temperature TC1 is equal to the threshold value TC0, and then the switch valve 81 is closed to close the cooling pipeline 80. In this way, the temperature change curve of the vulcanization medium in the capsule is closer to the ideal vulcanization medium temperature change curve, thereby better meeting the temperature requirements during the vulcanization process.

[0043] like Figure 7 As shown, in another embodiment, a proportional valve 81 may be provided on the cooling pipeline 80. When the real-time detected temperature TC1 of the vulcanizing medium is greater than the threshold value TC0, the opening degree of the proportional valve 81 is adjusted, thereby adjusting the flow rate of the vulcanizing medium passing through the cooling pipeline 80 and the flow rate of the vulcanizing medium passing through the heating pipeline 70. When the opening degree of the proportional valve 81 is large, the flow rate of part of the vulcanizing medium passing through the cooling pipeline 80 is large, and the flow rate of part of the vulcanizing medium passing through the heating pipeline 70 is small. When the vulcanizing medium passing through the cooling pipeline 80 and the vulcanizing medium passing through the heating pipeline 70 are mixed, the temperature of the vulcanizing medium entering the capsule 12 will be much lower than the temperature of the vulcanizing medium passing through the heating pipeline 70. When the opening degree of the proportional valve 81 is small, the flow rate of the part of the vulcanization medium passing through the cooling pipeline 80 is small, and the flow rate of the part of the vulcanization medium passing through the heating pipeline 70 is large. When the vulcanization medium passing through the cooling pipeline 80 and the vulcanization medium passing through the heating pipeline 70 are mixed, the temperature of the vulcanization medium entering the capsule 12 will be slightly lower than the temperature of the vulcanization medium passing through the heating pipeline 70. When the real-time detected vulcanization medium temperature TC1 is less than or equal to the threshold value TC0, the opening degree of the proportional valve 81 is set to 0, that is, the vulcanization medium is not cooled through the cooling pipeline 80, and is heated through the heating pipeline 70.

[0044] The adjustment of the opening degree of the proportional valve 81 described in the present invention can be performed in the following manner. When the difference between the real-time detected vulcanization medium temperature TC1 and the threshold value TC0 is large, that is, the temperature of the vulcanization medium entering the capsule 12 is high, the opening degree of the proportional valve 81 can be set to the maximum first, and then the opening degree of the proportional valve 81 is adjusted from large to small until the real-time detected vulcanization medium temperature TC1 is equal to the threshold value TC0, and the opening degree of the proportional valve 81 is maintained, so that after the vulcanization medium passing through the cooling pipeline 80 and the vulcanization medium passing through the heating pipeline 70 are mixed, the temperature of the vulcanization medium entering the capsule 12 meets the requirement.

[0045] When the difference between the real-time detected vulcanization medium temperature TC1 and the threshold value TC0 is small, that is, the difference between the temperature of the vulcanization medium entering the capsule 12 and the ideal temperature is small, the opening degree of the proportional valve 81 can be set to the minimum first, and then the opening degree of the proportional valve 81 can be adjusted from small to large until the real-time detected vulcanization medium temperature TC1 is equal to the threshold value TC0. The opening degree of the proportional valve 81 is maintained, so that after the vulcanization medium passing through the cooling pipeline 80 and the vulcanization medium passing through the heating pipeline 70 are mixed, the temperature of the vulcanization medium entering the capsule meets the requirements.

[0046] It can be known from the above disclosed technical contents that a tire vulcanization system with a cooling pipeline provided by the present invention is provided. By arranging a cooling pipeline with a valve element in conjunction with a heating pipeline with a heating element, the control system opens the cooling pipeline according to different needs, thereby adjusting the temperature of the vulcanization medium entering the capsule, so that the temperature change in the capsule is smaller and more stable, the tire vulcanization is more uniform, and the tire quality is improved.

[0047] The above contents are only some implementation methods of the present application, and their purpose is to illustrate the technical concept and features of the present application. Any equivalent changes or replacement technical solutions that can be easily thought of by any person skilled in the art under the inspiration of the technical content of the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A tire vulcanization system with a cooling pipeline, comprising a vulcanization station for vulcanizing tires, the vulcanization station comprising a mold for detachably accommodating a raw tire, and a capsule arranged inside the raw tire during the vulcanization operation; a medium circulation device for circulating the inert gas vulcanization medium; and a capsule air inlet pipeline and a capsule air outlet pipeline respectively connected to the capsule, the medium circulation device being respectively connected to the other end of the capsule air inlet pipeline and the capsule air outlet pipeline; further comprising an inflation pipeline connected to the capsule air inlet pipeline, and an exhaust pipeline connected to the capsule air outlet pipeline; characterized in that, A heating pipeline for heating the vulcanizing medium and a cooling pipeline for conducting the vulcanizing medium are arranged in parallel on the capsule air inlet pipeline. A heating element is arranged on the heating pipeline, and a valve element is arranged on the cooling pipeline.

2. The tire vulcanization system with a cooling pipeline according to claim 1, characterized in that: It also includes a temperature measuring element arranged on the capsule air inlet pipeline, wherein the temperature measuring element is arranged on one end of the capsule air inlet pipeline close to the capsule.

3. The tire vulcanization system with a cooling pipeline according to claim 2, characterized in that: It also includes a circulating air inlet pipeline and a circulating air outlet pipeline, one end of the circulating air inlet pipeline is connected to the medium circulation device, and the other end of the circulating air inlet pipeline is connected to the capsule air outlet pipeline; one end of the circulating air outlet pipeline is connected to the medium circulation device, and the other end of the circulating air outlet pipeline is connected to the capsule air inlet pipeline.

4. The tire vulcanization system with a cooling pipeline according to claim 3, characterized in that: The vulcanization station includes a first vulcanization station and a second vulcanization station, the first vulcanization station has a first capsule, the second vulcanization station has a second capsule, the capsule air inlet pipeline includes a first capsule air inlet pipeline and a second capsule air inlet pipeline, the capsule air outlet pipeline includes a first capsule air outlet pipeline and a second capsule air outlet pipeline, the first capsule is respectively connected with the first capsule air inlet pipeline and the first capsule air outlet pipeline, and the second capsule is respectively connected with the second capsule air inlet pipeline and the second capsule air outlet pipeline; a first heating pipeline and a first cooling pipeline are arranged in parallel on the first capsule air inlet pipeline, and a second heating pipeline and a second cooling pipeline are arranged in parallel on the second capsule air inlet pipeline.

5. The tire vulcanization system with a cooling pipeline according to claim 4, characterized in that: The circulating air intake pipeline includes a first circulating air intake pipeline and a second circulating air intake pipeline, the first circulating air intake pipeline is connected to the first capsule air outlet pipeline, the second circulating air intake pipeline is connected to the second capsule air outlet pipeline, wherein the first circulating air intake pipeline and the second circulating air intake pipeline are connected in series, and the medium circulation device is connected to the first circulating air intake pipeline.

6. The tire vulcanization system with a cooling pipeline according to claim 4 or 5, characterized in that: The circulating air outlet pipeline includes a first circulating air outlet pipeline and a second circulating air outlet pipeline, the first circulating air outlet pipeline is connected to the first capsule air inlet pipeline, the second circulating air outlet pipeline is connected to the second capsule air inlet pipeline, wherein the first circulating air outlet pipeline and the second circulating air outlet pipeline are connected in series, and the medium circulation device is connected to the first circulating air outlet pipeline.

7. The tire vulcanization system with a cooling pipeline according to claim 4 or 5, characterized in that: The circulating air outlet pipeline includes a first circulating air outlet pipeline and a second circulating air outlet pipeline, the first circulating air outlet pipeline is connected to the first capsule air inlet pipeline, the second circulating air outlet pipeline is connected to the second capsule air inlet pipeline, and the medium circulation device is respectively connected to the first circulating air outlet pipeline and the second circulating air outlet pipeline.

8. A control method for a tire vulcanization system having a cooling pipeline, comprising the following steps: S1: introducing low-pressure vulcanizing medium into the bladder to shape the green tire; S2: introducing the high-pressure vulcanization medium into the vulcanization system through the heating pipeline in the high-pressure vulcanization medium charging pipeline and the capsule air inlet pipeline and heating the high-pressure vulcanization medium, so that the high-temperature and high-pressure vulcanization medium enters the capsule to increase the temperature of the capsule; S3: The high-temperature and high-pressure vulcanization medium is circulated and vulcanized in a loop formed by a medium circulation device, a capsule air inlet pipeline, a capsule, and a capsule air outlet pipeline; S4: Recover or discharge the sulfiding medium through the exhaust pipe; Features: In step S2 or S3, the temperature of the vulcanization medium after being heated by the heating pipeline is detected in real time, and the real-time detected temperature of the vulcanization medium is compared with the threshold value through the control system. When the real-time detected temperature of the vulcanization medium is greater than the threshold value, the cooling pipeline in the capsule air inlet pipeline is opened; when the real-time detected temperature of the vulcanization medium is less than or equal to the threshold value, the cooling pipeline is not opened.

9. The control method according to claim 8, characterized in that: The real-time detected temperature of the vulcanizing medium is adjusted by adjusting the opening time of the cooling pipeline or the flow rate of the vulcanizing medium passing through the cooling pipeline.

10. The control method according to claim 9, characterized in that: When the real-time detected sulfurization medium temperature TC1 is greater than the threshold value TC0, and the difference between the sulfurization medium temperature TC1 and the threshold value TC0 is T0, the cooling pipeline is opened for a corresponding time t.

11. The control method according to claim 9, characterized in that: When the real-time detected sulfurization medium temperature TC1 is greater than the threshold value TC0, the cooling pipeline is opened until the sulfurization medium temperature TC1 is equal to the threshold value TC0.

12. The control method according to claim 9, characterized in that: When the real-time detected temperature TC1 of the vulcanizing medium is greater than the threshold value TC0, the flow rate of the vulcanizing medium passing through the cooling pipeline is adjusted until the real-time detected temperature TC1 of the vulcanizing medium is equal to the threshold value TC0.

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