Central mechanism with angle-adjustable air injection element, vulcanizing machine comprising same, and method for adjusting air injection angle of high-temperature nitrogen vulcanizing medium

Abstract

The invention provides a central mechanism with an angle-adjustable air injection element, which comprises an upper capsule chuck, a lower capsule chuck and a connecting rod, the connecting rod penetrates through the lower capsule chuck and is connected with the upper capsule chuck, and the connecting rod is used for driving the upper capsule chuck to move up and down; the air guide disc assembly penetrates through the capsule lower chuck and is arranged on the connecting rod in a sleeving manner; an air inlet and an air outlet are formed in the air guide disc assembly; the air guide disc assembly is provided with an air inlet, the air injection elements are hinged to the air guide disc assembly and communicated with the air inlet, and the angle adjusting mechanism is connected with the air injection elements and used for adjusting the angles of the air injection elements. According to the device, a high-temperature nitrogen vulcanizing medium is guided into the vulcanizing capsule by arranging the center mechanism with the air injection element, the angle of the air injection element can be adjusted through the angle adjusting mechanism, the distance between an air injection hole of the air injection element and the inner wall of the capsule is closer, and therefore the vulcanizing capsule can be heated faster and better.

Description

[0001] The invention relates to the field of tire vulcanization equipment, in particular to a central mechanism with an angle-adjustable jet element and a vulcanizer containing the central mechanism, and a method for adjusting the jet angle of a high-temperature nitrogen vulcanization medium by adjusting the jet element in the central mechanism. Background Art

[0002] It can be known from the technical content disclosed in the prior invention patent technology No. 2023222260068 that when the existing tire vulcanizer heats the vulcanization bladder, an air inlet at a certain angle is set on the gland of the central mechanism, and high-temperature steam is introduced into the vulcanization bladder to heat the vulcanization bladder, thereby heating and vulcanizing the raw tire through the vulcanization bladder. This structure is more suitable for traditional high-temperature steam vulcanizers and PCR tires with smaller sizes. For some TBR tires and OTR engineering machinery tires with larger sizes, the corresponding vulcanization bladders are also larger in size. When the high-temperature steam is introduced from the air inlet on the gland into the vulcanization bladder and has not reached the inner wall of the bladder far from the air inlet (such as the crown and shoulder side), it may be discharged from the air outlet or cooled, resulting in slow heat transfer efficiency in such areas, uneven heating of the vulcanization bladder, long vulcanization time, and even under-vulcanization of the tire. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a central mechanism with an angle-adjustable jet element, including an upper capsule chuck and a lower capsule chuck, and a connecting rod passing through the lower capsule chuck and connected to the upper capsule chuck, the connecting rod is used to drive the upper capsule chuck to move up and down; it also includes an air guide plate assembly passing through the lower capsule chuck and sleeved on the connecting rod, the air guide plate assembly is provided with an air inlet and an air outlet; a plurality of jet elements hingedly arranged with the air guide plate assembly, the jet elements are connected to the air inlet, and it also includes an angle adjustment mechanism connected to the jet element, the angle adjustment mechanism is used to adjust the angle of the jet element.

[0004] Preferably, the angle adjustment mechanism comprises a retractable multi-stage sleeve fixedly arranged on the connecting rod, and a plurality of first connecting rods are hingedly arranged on one end of the multi-stage sleeve away from the end fixed to the connecting rod, and the first connecting rods are hingedly arranged to the jet element.

[0005] Preferably, the angle adjustment mechanism comprises a movable plate slidably arranged on the connecting rod, a plurality of second connecting rods are hingedly arranged on the circumference of the movable plate, and one end of the second connecting rod away from the movable plate is hingedly arranged with the jet element.

[0006] Preferably, the angle adjustment mechanism further comprises a reset mechanism disposed between the moving disk and the air guide disk assembly.

[0007] Preferably, the reset mechanism is a first elastic element sleeved on the connecting rod.

[0008] Preferably, the reset mechanism includes a first spring guide column component fixedly arranged on the movable plate, a second spring guide column component fixedly arranged on the air guide plate assembly, the first spring guide column component can slide in the second spring guide column component, and also includes a second elastic element arranged on the first spring guide column component and the second spring guide column component.

[0009] Preferably, it also includes an angle adjustment member slidably arranged on the connecting rod, and the angle adjustment member is arranged between the moving disk and the capsule upper clamping disk.

[0010] Preferably, it also includes a limiting member slidably arranged on the connecting rod, and the limiting member is arranged between the moving plate and the air guide plate assembly.

[0011] Preferably, the jet element comprises a fixed end hinged to the air guide disc assembly, a jet end for jetting gas into the capsule, and a plurality of extensions connecting the fixed end and the jet end.

[0012] Preferably, the jet end is approximately spherical.

[0013] Preferably, the jet end is provided with a plurality of jet holes, and the jet holes are arranged at an angle with the extension portion.

[0014] The present invention also provides a tire vulcanizer, comprising the above-mentioned central mechanism with an angle-adjustable jet element, wherein a vulcanizing bladder is arranged on the central mechanism.

[0015] The present invention also provides a method for adjusting the jet angle of a high-temperature nitrogen vulcanizing medium, comprising the following steps: firstly fixing the vulcanizing bladder by means of the bladder upper chuck and the bladder lower chuck in the above-mentioned central mechanism; when it is necessary to introduce the high-temperature nitrogen vulcanizing medium into the vulcanizing bladder for vulcanizing operation, driving the connecting rod to drive the bladder upper chuck to move toward the bladder lower chuck, and then driving the jet element to extend outward relative to the connecting rod through the angle adjustment mechanism to adjust the angle of the jet element relative to the plane where the bladder lower chuck is located, and then realizing that the jet element is arranged corresponding to the inner wall of the tire to be vulcanized, and then introducing the high-temperature nitrogen vulcanizing medium from the air inlet and entering the vulcanizing bladder in a directional manner through the jet element; after the tire vulcanization is completed, the nitrogen vulcanizing medium is discharged through the air outlet, and the bladder upper chuck is driven to move upward through the connecting rod, and then the jet element is driven to shrink and reset inward relative to the connecting rod through the angle adjustment mechanism.

[0016] The invention mainly designs a new central mechanism with an adjustable angle jet element, and introduces a high-temperature nitrogen vulcanizing medium into a vulcanizing bladder by setting the jet element. The angle of the jet element can be adjusted by the angle adjustment mechanism, so that a plurality of jet elements have a contracted state and an extended state; when the jet element is in the extended state, the jet hole of the jet element is closer to the inner wall of the bladder, so that the vulcanizing bladder is heated faster and better; by setting an angle adjustment member, the angle between the jet element and the plane where the lower chuck of the bladder is located in the extended state is adjusted, so that the jet hole is aligned with different positions of the inner wall of the bladder for heating; by setting the jet element with a plurality of extensions, jet elements of different lengths can be used according to vulcanizing bladders of different specifications, and the jet hole is further made closer to the inner wall of the bladder for heating; and by setting a detachable jet end, an extension part and a fixed end, when jet elements of different lengths need to be used, the length of the jet element can be adjusted by quickly replacing the extension part, so that the type can be quickly changed; by setting a plurality of jet holes at the jet end of the jet element at different angles to the extension part, the jet angle of the gas can be adjusted, so that the inner wall of the bladder is better heated. The central mechanism of the present invention is mainly suitable for engineering tires with larger tire sizes and specifications, and can be used for the vulcanization of tires of different specifications. The change of type is simple and convenient, and the temperature in the bladder can be quickly made uniform to meet the vulcanization requirements, thereby shortening the vulcanization time and improving the vulcanization quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the central mechanism provided with a vulcanizing bladder according to the present invention when the jet element is in a retracted state.

[0018] Figure 2 It is a schematic diagram of the central mechanism provided with a vulcanizing bladder according to the present invention when the jet element is in an extended state.

[0019] Figure 3 It is a schematic diagram of the main body of the central mechanism with the first embodiment of the angle adjustment mechanism described in the present invention, wherein the jet element is in a retracted state.

[0020] Figure 4 It is a schematic diagram of the main body of the central mechanism with the first embodiment of the angle adjustment mechanism described in the present invention, wherein the jet element is in an extended state.

[0021] Figure 5 It is a schematic diagram of the central mechanism with the second embodiment of the angle adjustment mechanism according to the present invention, wherein the reset mechanism is the first embodiment and the jet element is in a retracted state.

[0022] Figure 6It is a schematic diagram of the central mechanism with the second embodiment of the angle adjustment mechanism according to the present invention, wherein the reset mechanism is the second embodiment and the jet element is in an extended state.

[0023] Figure 7 Schematic diagram of the air guide disc assembly of the present invention. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings.

[0025] like Figures 1 to 7 As shown, the present invention discloses a vulcanizing machine using high-temperature nitrogen as a vulcanizing medium. The vulcanizing machine adopts a central mechanism 1 with an angle-adjustable jet element, which includes a capsule upper chuck 10 and a capsule lower chuck 20, wherein the capsule upper chuck 10 and the capsule lower chuck 20 are used to fix an inflatable and stretchable vulcanizing capsule 100, and a connecting rod 30 that passes through the capsule lower chuck 20 and is connected to the capsule upper chuck 10, wherein the connecting rod 30 is driven by a driving source (not shown) to move up and down, thereby driving the capsule upper chuck 10 to move up and down; and further includes an air guide plate assembly 40 that passes through the capsule lower chuck 20 and is sleeved on the connecting rod 30, wherein the capsule lower chuck 20 and the guide plate assembly 40 are connected to the capsule upper chuck 1 ... The air disc assembly 40 is connected to its own supporting mechanism (not shown). The position of the lower chuck 20 and the air guide disc assembly 40 remain unchanged during the vulcanization of the green tire. The air guide disc assembly 40 is provided with an air inlet 41 and an air outlet 42. A plurality of jet elements 50 are hingedly provided on the air guide disc assembly 40. The jet elements 50 are evenly distributed along the circumference of the air guide disc assembly 40. The jet elements 50 are connected to the air inlet 41 and further include an angle adjustment mechanism 60 connected to the jet elements 50. The angle of the jet elements 50 can be adjusted by the angle adjustment mechanism 60, so that the plurality of jet elements 50 have a contracted state and an extended state. When in use, the jet elements 50 are arranged in the vulcanization bladder 100. When the jet elements 50 are in the attached Figure 1 When the injection element 50 is in the retracted state shown, it is used to load or unload the green tire; Figure 2 In the extended state shown, the high-temperature nitrogen vulcanizing medium is introduced into the vulcanizing bladder 100 through the jet element 50 to heat the vulcanizing bladder 100, thereby heating and vulcanizing the green tire disposed outside the vulcanizing bladder 100. Therefore, the present invention is applicable to PCR tires, TBR tires, OTR engineering machinery tires, etc.

[0026] As attached Figure 3 and 4As shown, the angle adjustment mechanism 60 of the present invention includes a sleeve 61 fixedly arranged on the connecting rod 30, the sleeve 61 is arranged between the capsule upper chuck 10 and the air guide disc assembly 40, and a plurality of first connecting rods 62 are hingedly arranged on one end of the sleeve 61 away from the connecting rod 30, the first connecting rods 62 are hingedly arranged with the jet element 50, the first connecting rods 62 are hingedly arranged outside the circumference of the sleeve 61, and are arranged opposite to the jet element 50. Since the air guide disc assembly 40 is fixed, when the connecting rod 30 drives the capsule upper chuck 10 to move upward, the sleeve 61 fixed to the connecting rod 30 is driven to move upward, and the first connecting rod 62 hinged to the sleeve 61 is driven to move in a direction close to the connecting rod 30, and shrinks inward relative to the connecting rod 30, and at the same time drives the jet element 50 hinged to the first connecting rod 62 to move in a direction close to the connecting rod 30, as shown in FIG. Figure 3 As shown, the jet element 50 is retracted inwardly relative to the connecting rod 30; when the connecting rod 30 drives the capsule upper chuck 10 to move downward, the shaft sleeve 61 fixed to the connecting rod 30 is driven to move downward, and the first connecting rod 62 hinged to the shaft sleeve 61 is driven to move in a direction away from the connecting rod 30, and extends outward relative to the connecting rod 30, and at the same time drives the jet element 50 hinged to the first connecting rod 62 to move in a direction away from the connecting rod 30, as shown in FIG. Figure 4 The gas injection element 50 is shown extending outwardly relative to the connecting rod 30 .

[0027] Since the extension angle of the jet element 50 is determined by the distance of the shaft sleeve 61 descending, and the distance of the capsule upper chuck 10 ascending or descending is not the same as the distance of the shaft sleeve 61 ascending or descending, the distance of the capsule upper chuck 10 moving may far exceed the distance of the shaft sleeve 61 moving. Therefore, in order to realize the extension of the jet element 50 by the movement of the connecting rod 30, the shaft sleeve 61 of the present invention is a telescopic multi-stage shaft sleeve, the multi-stage shaft sleeve includes a first shaft sleeve 611 and at least one telescopic mechanism, the telescopic mechanism includes a telescopic shaft sleeve 6121, the telescopic shaft sleeve 6121 is provided with a guide groove 6122 along the moving direction of the connecting rod 30, and also includes a fixing member (not shown) fixedly arranged on the first shaft sleeve 611 and movable in the guide groove 6122; wherein the first shaft sleeve 611 is slidably arranged in the telescopic shaft sleeve 6121, and the first shaft sleeve 611 is fixedly arranged on the connecting rod 30. When the connecting rod 30 moves upward, the first sleeve 611 is driven to slide and move upward in the telescopic sleeve 6121 until the fixing member moves to the top of the guide groove 6122, and the connecting rod 30 continues to move upward to drive the first connecting rod 62 and the jet element 50 to retract inward relative to the connecting rod 30; when the connecting rod 30 moves downward, the first sleeve 611 is driven to slide and move downward in the telescopic sleeve 6121 until the fixing member moves to the bottom of the guide groove 6122, and the connecting rod 30 continues to move downward to drive the first connecting rod 62 and the jet element 50 to extend outward relative to the connecting rod 30. Through the retractable multi-stage sleeve 61, the jet element 50 is driven to retract inward or extend outward relative to the connecting rod 30 by the movement of the connecting rod 30, while not affecting the respective moving distances of the capsule upper chuck 10 and the multi-stage sleeve 61. The number of the telescopic mechanisms can be set according to the moving distance. When there are two groups of telescopic mechanisms, the telescopic sleeve of the second group of telescopic mechanisms is slidably arranged outside the telescopic sleeve of the first group of telescopic mechanisms, and the telescopic sleeve of the first group of telescopic mechanisms can be retracted into the telescopic sleeve of the second group of telescopic mechanisms, and so on.

[0028] like Figure 5 and 6As shown in the figure, as a second embodiment of the angle adjustment mechanism, the angle adjustment mechanism 60 of the present invention includes a moving plate 63 slidably arranged on the connecting rod 30, and a plurality of second connecting rods 64 are hingedly arranged on the circumference of the moving plate 63, and the second connecting rods 64 are arranged opposite to the jet element 50, and one end of the second connecting rod 64 away from the moving plate 63 is hingedly arranged with the jet element 50. When the connecting rod 30 moves downward, the capsule upper chuck 10 is driven to move downward until the capsule upper chuck 10 contacts the moving plate 63 and exerts downward pressure on the moving plate 63, driving the moving plate 63 to move downward. Since the air guide plate assembly 40 is fixed, the moving plate 63 moves downward, so that the distance between the moving plate 63 and the air guide plate assembly 40 becomes smaller, so that the plurality of second connecting rods 64 and the plurality of jet elements 50 on the moving plate 63 are simultaneously extended outward relative to the connecting rod 30, so that the jet element 50 is arranged close to the inner wall of the tread crown and shoulder side capsule.

[0029] The above-mentioned angle adjustment mechanism 60 also includes a reset mechanism arranged between the movable disk 63 and the air guide disk assembly 40. When the connecting rod 30 moves upward and drives the capsule upper clamping disk 10 to move upward and no longer exerts downward pressure on the movable disk 63, the movable disk 63 is moved upward back to the initial position through the reset mechanism, driving the plurality of second connecting rods 64 and the plurality of jet elements 50 to move simultaneously in the direction close to the connecting rod 30, so that the jet elements 50 shrink inward relative to the connecting rod 30 and reset.

[0030] like Figure 5 As shown, as a first embodiment of the reset mechanism, the reset mechanism is a first elastic element 651 (such as a spring) sleeved on the connecting rod. When the capsule upper chuck 10 drives the movable disk 63 to move downward, the first elastic element 651 is compressed and has an upward elastic restoring force. When the capsule upper chuck 10 moves upward and no longer exerts downward pressure on the movable disk 63, the movable disk 63 moves upward back to the initial position under the action of the upward elastic restoring force of the first elastic element 651, driving a plurality of jet elements 50 to contract inwardly relative to the connecting rod 30. Since the first elastic element 651 is large in size and has a large elastic restoring force, the movable disk 63 may be subjected to a large upward force, thereby affecting the angle adjustment mechanism 60.

[0031] Therefore, as a second embodiment of the reset mechanism, Figure 6As shown, the reset mechanism includes a first spring guide column 652 fixedly arranged on the movable disk 63, a second spring guide column 653 fixedly arranged on the air guide disk assembly 40, the first spring guide column 652 can slide in the second spring guide column 653, and also includes a second elastic element 654 arranged on the first spring guide column 652 and the second spring guide column 653. When the capsule upper clamping disk 10 moves downward to drive the movable disk 63 to move downward, the first spring guide column 652 moves in the second spring guide column 653, and the second elastic element 654 is compressed and has an upward elastic restoring force. When the capsule upper clamping disk 10 moves upward and no longer exerts downward pressure on the movable disk 63, the movable disk 63 moves upward and returns to the initial position under the upward elastic restoring force of the second elastic element 654, driving the plurality of jet elements 50 to contract. The elastic restoring force provided by the reset mechanism of the above structure is relatively small, which is easier to meet the requirements.

[0032] Since different specifications of curing bladders 100 are used when curing green tires of different specifications, the angle between the jet element 50 and the plane of the lower chuck 20 of the bladder when the jet element 50 is in the extended state also needs to be adjusted when producing green tires of different specifications. Figure 5 and 6 As shown, the central mechanism of the present invention further includes an angle adjustment member 70 slidably arranged on the connecting rod 30, and the angle adjustment member 70 is arranged between the moving disk 63 and the capsule upper clamping disk 10. The angle adjustment member 70 will be placed on the moving disk 63 under the action of gravity. By setting the angle adjustment members 70 at different heights, the capsule upper clamping disk 10 can be moved downward by different distances and then start to exert a downward force on the moving disk 63 through the angle adjustment member 70, that is, in the process of the capsule upper clamping disk 10 moving downward, the moving disk 63 can move downward by different distances relative to the air guide disk assembly 40, so that when the jet element 50 extends outward relative to the connecting rod 30, by controlling the different distances between the moving disk 63 and the air guide disk assembly 40, the jet element 50 has different angles with the plane direction of the capsule lower clamping disk 20 when extending.

[0033] In order to avoid the capsule upper clamping plate 10 exceeding the lower limit of the movable plate 63 during the downward movement, thereby damaging the central mechanism, as shown in FIG. Figure 6 As shown, the central mechanism described in the present invention also includes a limit member 80 slidably arranged on the connecting rod 30, and the limit member 80 is arranged between the movable plate 63 and the air guide plate assembly 40. When the movable plate 63 moves to contact with the limit member 80, it can no longer move downward, and is used to limit the downward movement position of the movable plate 63 during the downward movement process.

[0034] The jet element 50 of the present invention is made of high temperature resistant material, so as to work better in a high temperature environment. Figure 6 As shown, optionally, the jet element 50 of the present invention includes a fixed end 51 hinged to the air guide plate assembly 40, a jet end 52 for jetting gas into the curing bladder 100, and a plurality of extensions 53 connecting the fixed end 51 and the jet end 52. When using curing bladders 100 of different specifications to vulcanize green tires of different specifications, different lengths or numbers of extensions 53 can be used to make the jet element 50 have different lengths, so that the jet end 52 is closer to the inner wall of the bladder at the far end (such as the crown and shoulder side of the tire), thereby accelerating the heat transfer efficiency of the area, making the temperature at different positions of the inner wall of the bladder reach the same in a shorter time, reducing the vulcanization time, and thus saving energy consumption.

[0035] Preferably, the jet end 52, the extension part 53 and the fixed end 51 are connected in a detachable manner such as a threaded connection or a snap-on connection. When using jet elements 50 of different lengths, it is not necessary to replace the jet element 50 entirely, and the fixed end 51 can be kept on the air guide plate assembly 40 without moving. Only the extension part 53 needs to be replaced to quickly adjust the jet element 50, which is convenient for changing the type.

[0036] like Figure 1 As shown, since the jet element 50 is used in the vulcanizing bladder 100, when the connecting rod 30 drives the upper chuck 10 of the bladder to move linearly to stretch the vulcanizing bladder 100, the jet element 50 shrinks close to the connecting rod 30, and the jet element 50 may hit the vulcanizing bladder 100. Therefore, in order to prevent the jet element 50 from scratching the vulcanizing bladder 100, preferably, the jet end 52 of the jet element of the present invention is approximately spherical. The jet end 52 of the jet element of the present invention can be provided with a plurality of jet holes 521, and the jet holes 521 can be arranged at different angles with the extension 53, so that the high-temperature nitrogen vulcanizing medium passing through the jet holes 521 can flow toward the inner wall of the bladder in different directions, and the jet holes 521 can also be arranged in a targeted manner toward the position with low temperature on the inner wall of the bladder, so that the temperature at different positions of the vulcanizing bladder can be better consistent.

[0037] It should be noted that the central mechanism described in the present invention can also adjust the hinge position of the first connecting rod 62 or the second connecting rod 64 and the jet element 50, that is, the first connecting rod 62 or the second connecting rod 64 is hinged to the jet element 50 at different distances from the jet hole 521, thereby adjusting the angle between the jet element 50 and the plane direction of the capsule lower chuck 20 when in the extended state.

[0038] like Figure 7As shown, the air guide disc assembly 40 of the present invention includes an air inlet disc 43, an air exhaust disc 44 and a bottom plate 45 which are sequentially connected and arranged, the air inlet 41 is arranged on the air inlet disc 43, and the air outlet 42 is arranged on the side walls of the air exhaust disc 44 and the bottom plate 45, so as to facilitate processing, and the air outlet 42 and the air inlet 41 are respectively arranged on different discs, so that the flow rate of the circulating nitrogen sulfurization medium is greater. Of course, the air inlet disc 43, the air exhaust disc 44 and the bottom plate 45 can also be arranged in one piece, and the air outlet 42 can also be arranged on the air inlet disc 43. The air inlet 41 is connected to the air inlet pipeline (not shown), and the air outlet 42 is connected to the air outlet pipeline (not shown). When the nitrogen vulcanizing medium is introduced into the vulcanizing bladder 100, the nitrogen vulcanizing medium enters the air inlet 41 from the air source (not shown) through the air inlet pipeline, and then enters the vulcanizing bladder 100 through the injection element 50. After circulating in the vulcanizing bladder, it enters the air outlet pipeline from the air outlet 42 and is discharged.

[0039] The working principle of the central mechanism described in the present invention is as follows: Figure 1 As shown in the figure, when the driving source drives the connecting rod 30 to move upward, the upper chuck 10 of the bladder is driven to move upward, and the lower chuck 20 of the bladder remains stationary, thereby driving the vulcanization bladder 100 to extend along the tire width direction. At the same time, the connecting rod 30 moves upward to drive the jet element 50 to retract inward relative to the connecting rod 30 through the angle adjustment mechanism 60, so that the vulcanized green tire is placed outside the vulcanization bladder 100. After the green tire to be vulcanized is placed outside the vulcanization bladder 100, as shown in the figure, Figure 2 As shown, the connecting rod 30 is driven downward by a driving source, driving the upper chuck 10 of the bladder to descend, driving the vulcanization bladder 100 to extend in the radial direction of the tire, and at the same time, the connecting rod 30 moves downward to drive the jet element 50 to extend outward relative to the connecting rod 30 through the angle adjustment mechanism 60; then, a heated nitrogen vulcanization medium is introduced into the central mechanism, and the nitrogen vulcanization medium is introduced into the vulcanization bladder 100 through the jet element 50, and the vulcanization bladder 100 is heated to vulcanize the green tire outside the vulcanization bladder 100; when the vulcanization is completed, the nitrogen vulcanization medium in the vulcanization bladder 100 is discharged, and the connecting rod 30 is driven upward by a driving source to drive the upper chuck 10 of the bladder to move upward to drive the vulcanization bladder 100 to extend in the width direction of the tire, and the jet element 50 is retracted inward relative to the connecting rod 30, thereby facilitating the removal of the tire and replacing a new green tire.

[0040] The present invention further provides a vulcanizing machine, which comprises the central mechanism 1 with the angle-adjustable jet element, and a vulcanizing bladder 100 is arranged on the central mechanism 1.

[0041] The present invention also provides a method for adjusting the jet angle of a high-temperature nitrogen vulcanizing medium, which comprises the following steps: firstly, fixing a vulcanizing bladder 100 by means of an upper bladder chuck 10 and a lower bladder chuck 20 in the above-mentioned central mechanism; when it is necessary to introduce a high-temperature nitrogen vulcanizing medium into the vulcanizing bladder 100 for vulcanizing operation, driving the connecting rod 30 to drive the upper bladder chuck 10 to move toward the lower bladder chuck 20, and then driving the jet element 50 to extend outward relative to the connecting rod 30 through the angle adjustment mechanism 60, so as to adjust the angle of the jet element 50 relative to the plane where the lower bladder chuck 20 is located, and then realizing that the jet element 50 is arranged corresponding to the inner wall of the tire to be vulcanized, and then introducing the high-temperature nitrogen vulcanizing medium from the air inlet 41 and entering the vulcanizing bladder 100 in a directional manner through the jet element 50; after the tire vulcanization is completed, the nitrogen vulcanizing medium is discharged through the air outlet 42, and the upper bladder chuck 10 is driven to move upward by the connecting rod 30, and then the jet element 50 is driven to shrink and reset inward relative to the connecting rod 30 through the angle adjustment mechanism 60.

[0042] The present invention mainly provides a central mechanism with an adjustable angle jet element. By setting the jet element 50 to introduce high-temperature nitrogen vulcanizing medium into the vulcanizing bladder 100, the angle of the jet element 50 can be adjusted through the angle adjustment mechanism 60, so that a plurality of jet elements 50 have a contracted state and an extended state; when the jet element 50 is in the extended state, the distance between the jet hole of the jet element 50 and the inner wall of the bladder is closer, so that the vulcanizing bladder 100 can be heated faster and better; by setting the angle adjustment member 70, the angle between the jet element 50 and the plane where the lower chuck 20 of the bladder is located in the extended state is adjusted, so that the jet hole 521 is aligned with different positions of the inner wall of the bladder. By providing a jet element 50 with a plurality of extensions, jet elements 50 of different lengths can be used according to different specifications of vulcanization bladders, and the jet hole 521 is further made closer to the inner wall of the bladder for heating; and by providing a detachable jet end 52, an extension 53 and a fixed end 51, when it is necessary to use a jet element 50 of different lengths, it is only necessary to quickly replace the extension 53 to adjust the length of the jet element 50, and the type can be changed quickly; by providing a plurality of jet holes 521 arranged at different angles to the extension at the jet end 52 of the jet element, the jet angle of the nitrogen vulcanization medium can be adjusted, so as to better heat the inner wall of the bladder.

[0043] 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 central mechanism with an angle-adjustable jet element, comprising an upper capsule chuck and a lower capsule chuck, and a connecting rod passing through the lower capsule chuck and connected to the upper capsule chuck, wherein the connecting rod is used to drive the upper capsule chuck to move up and down; characterized in that: It also includes an air guide plate assembly that passes through the lower clamping plate of the capsule and is sleeved on the connecting rod, and the air guide plate assembly is provided with an air inlet and an air outlet; a plurality of jet elements hingedly arranged with the air guide plate assembly, and the jet elements are connected with the air inlet; and an angle adjustment mechanism connected with the jet elements, and the angle adjustment mechanism is used to adjust the angle of the jet elements.

2. The central mechanism according to claim 1, characterized in that: The angle adjustment mechanism comprises a retractable multi-stage sleeve fixedly arranged on the connecting rod, and a plurality of first connecting rods are hingedly arranged on one end of the multi-stage sleeve away from the connecting rod, and the first connecting rods are hingedly arranged with the jet element.

3. The central mechanism according to claim 1, characterized in that: The angle adjustment mechanism comprises a moving plate slidably arranged on the connecting rod, a plurality of second connecting rods are hingedly arranged on the circumference of the moving plate, and one end of the second connecting rod away from the moving plate is hingedly arranged with the jet element.

4. The central mechanism according to claim 3, characterized in that: The angle adjustment mechanism also includes a reset mechanism arranged between the moving plate and the air guide plate assembly.

5. The central mechanism according to claim 4, characterized in that: The reset mechanism is a first elastic element sleeved on the connecting rod.

6. The central mechanism according to claim 4, characterized in that: The reset mechanism includes a first spring guide column component fixedly arranged on the movable plate, a second spring guide column component fixedly arranged on the air guide plate assembly, the first spring guide column component can slide in the second spring guide column component, and also includes a second elastic element arranged on the first spring guide column component and the second spring guide column component.

7. The central mechanism according to any one of claims 3 to 6, characterized in that: It also includes an angle adjustment member slidably arranged on the connecting rod, and the angle adjustment member is arranged between the moving disk and the capsule upper clamping disk.

8. The central mechanism according to any one of claims 1 to 6, characterized in that: It also includes a limiting member slidably arranged on the connecting rod, and the limiting member is arranged between the moving plate and the air guide plate assembly.

9. The central mechanism according to any one of claims 1 to 6, characterized in that: The jet element comprises a fixed end hinged to the air guide disc assembly, a jet end for jetting gas into the capsule, and a plurality of extensions connecting the fixed end and the jet end.

10. The central mechanism according to claim 9, characterized in that: The jet end is approximately spherical.

11. The central mechanism according to claim 9, characterized in that: The jet end is provided with a plurality of jet holes, and the jet holes are arranged at an angle with the extension part.

12. A tire vulcanizing machine, characterized in that: A central mechanism comprising a jet element with adjustable angle as claimed in any one of claims 1 to 11.

13. A method for adjusting the jet angle of high-temperature nitrogen vulcanization medium, characterized in that: The steps include: First, fix the vulcanization bladder by using the bladder upper clamping plate and the bladder lower clamping plate in the central mechanism described in any one of claims 1 to 11; When it is necessary to introduce the high-temperature nitrogen vulcanizing medium into the vulcanizing bladder for vulcanization, the connecting rod is driven to drive the upper chuck of the bladder to move toward the lower chuck of the bladder, and then the jet element is driven to extend outward relative to the connecting rod through the angle adjustment mechanism to adjust the angle of the jet element relative to the plane where the lower chuck of the bladder is located, so as to achieve the setting of the jet element corresponding to the inner wall of the tire to be vulcanized, and then the high-temperature nitrogen vulcanizing medium is introduced from the air inlet and directed into the vulcanizing bladder through the jet element; After the tire is vulcanized, the nitrogen vulcanizing medium is discharged through the outlet, and the upper clamping plate of the bladder is driven to move upward through the connecting rod, and then the injection element is driven to shrink and reset inward relative to the connecting rod through the angle adjustment mechanism.

Images