Tire vulcanization equipment

Abstract

The utility model provides tire vulcanizing equipment which is characterized in that a lower clamping edge of a vulcanizing bladder is clamped by a lower clamping assembly, an upper clamping edge of the vulcanizing bladder is clamped by an upper clamping assembly, the upper end of a center rod is fixedly connected with the upper clamping assembly, two ends of a circulating pipeline are communicated with an inner cavity of the vulcanizing bladder, and a pump and a heater are arranged on the circulating pipeline. The circulating pipeline is further connected with an air inlet pipeline, and a first stop valve is arranged on the air inlet pipeline. In the tire vulcanization process, the air inlet pipeline is suitable for filling a gas medium into the circulation pipeline, the heater is suitable for heating the gas medium in the circulation pipeline, the pump is suitable for driving the gas medium to circularly flow in the inner cavity of the vulcanization bladder and the circulation pipeline, and the tire exchanges heat with the gas medium through the vulcanization bladder until tire vulcanization is completed.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tire vulcanization, and in particular, relates to a tire vulcanization device. BACKGROUND

[0002] The vulcanization process is widely used in industrial production. Through vulcanization treatment, the overall hardness of certain materials can be improved, for example, the hardness of rubber and the like. Rubber is one of the main materials for manufacturing tires. The outer tire supported by rubber is a plastic rubber with viscoelasticity before undergoing vulcanization treatment, which is easy to deform and has low strength. After vulcanization, the rubber is solidified and has high strength and elasticity.

[0003] The traditional tire vulcanization process usually adopts a combination of saturated steam and nitrogen to perform vulcanization. The vulcanization process is as follows: first, an unvulcanized green tire is placed between a sealed vulcanization bladder and a vulcanization mold; then, saturated steam is introduced into the vulcanization bladder, which can provide the heat required for vulcanization; and then high-pressure nitrogen is introduced to provide the pressure required for vulcanization. Under the action of the heat of the saturated steam and the pressure of the high-pressure nitrogen, the vulcanization bladder expands and presses and heats the green tire to perform sizing and vulcanization operations on the green tire.

[0004] One of the problems of the steam vulcanization machine in the running process is that the steam entering the vulcanization bladder will condense, and the condensed water will accumulate in the lower part of the vulcanization bladder, causing a large temperature difference between the upper and lower parts of the vulcanization bladder, which will affect the vulcanization effect of the tire. Moreover, in order to supply steam to the vulcanization bladder, a steam pipeline needs to be arranged. The steam is transported from outside the factory to the vulcanization machine, and heat dissipation occurs in the process, resulting in heat waste. CONTENT OF THE UTILITY MODEL

[0005] In order to solve the above technical problems, the application provides a tire vulcanization device, which comprises:

[0006] A vulcanization bladder, the lower clamping edge of the vulcanization bladder is clamped by a lower clamping assembly, and the upper clamping edge of the vulcanization bladder is clamped by an upper clamping assembly;

[0007] A center rod, the upper end of the center rod is fixedly connected with the upper clamping assembly, and the center rod is arranged to be movable in the up-down direction relative to the lower clamping assembly;

[0008] characterized in that it further comprises a circulation pipeline, both ends of the circulation pipeline are in communication with the inner cavity of the vulcanization bladder, a pump and a heater are arranged on the circulation pipeline, the pump is suitable for driving the gaseous medium to flow in the inner cavity of the vulcanization bladder and the circulation pipeline, and the heater is suitable for heating the gaseous medium;

[0009] The circulating pipeline is also connected with an air inlet pipeline, which is suitable for filling the gas medium into the circulating pipeline, and a first stop valve is arranged on the air inlet pipeline.

[0010] In a preferred embodiment, a second stop valve and a third stop valve are arranged on the circulating pipeline, and the heater and the pump are located between the second stop valve and the third stop valve.

[0011] In a preferred embodiment, a bridge pipeline is further connected to the circulating pipeline, two ends of the bridge pipeline are connected with the circulating pipeline, the bridge pipeline and the circulating pipeline form a preheating circulating loop, the heater and the pump are located in the circulating loop, the second stop valve and the third stop valve are located outside the preheating circulating loop, and a fourth stop valve is arranged on the communication pipeline.

[0012] In a preferred embodiment, the pump comprises an air compressor and a gas drive machine, and the gas drive machine drives the air compressor to operate.

[0013] In a preferred embodiment, a gas storage tank is further included, the gas storage tank is connected with the gas drive machine, and a fifth stop valve is arranged between the gas storage tank and the circulating pipeline.

[0014] In a preferred embodiment, the gas storage tank is arranged on the air inlet pipeline, the first stop valve is arranged between the gas storage tank and the circulating pipeline, and a seventh stop valve is further arranged on the air inlet pipeline.

[0015] In a preferred embodiment, a gas medium recovery pipeline is connected between the gas storage tank and the circulating pipeline, and a sixth stop valve is arranged on the gas medium recovery pipeline.

[0016] In a preferred embodiment, a tire mold is further included and arranged outside the vulcanization capsule.

[0017] Compared with the prior art, the scheme of the present application has the following beneficial effects:

[0018] The tire vulcanization equipment provided by the present application comprises a vulcanization capsule, a center rod, a lower clamping assembly, an upper clamping assembly, a circulating pipeline and the like. Two ends of the circulating pipeline are in communication with the inner cavity of the vulcanization capsule, forming a vulcanization circulating loop. A pump and a heater are further arranged on the circulating pipeline. In the tire vulcanization process, the air inlet pipeline is suitable for filling the gas medium into the circulating pipeline, the heater is suitable for heating the gas medium in the circulating pipeline, and the pump is suitable for driving the gas medium to circulate in the inner cavity of the vulcanization capsule and the circulating pipeline. The tire exchanges heat with the gas medium through the vulcanization capsule until the tire vulcanization is completed. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art of the present application, the drawings needed to be used in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings described below are some embodiments of the present application, and all other embodiments obtained by those of ordinary skill in the art without creative labor based on these drawings also belong to the protection scope of the present application.

[0020] Figure 1 is a structural schematic diagram of a tire vulcanization equipment provided by Embodiment 1 of the present application;

[0021] Figure 2 is a structural schematic diagram of a pump of a tire vulcanization equipment provided by Embodiment 1 of the present application;

[0022] Figure 3 is a structural schematic diagram of a tire vulcanization equipment provided by Embodiment 2 of the present application;

[0023] Figure 4 is a preheating circulation loop schematic diagram of a tire vulcanization equipment provided by Embodiment 2 of the present application;

[0024] Figure 5 is a structural schematic diagram of a tire vulcanization equipment provided by Embodiment 3 of the present application;

[0025] Figure 6 is another structural schematic diagram of a tire vulcanization equipment provided by Embodiment 3 of the present application.

[0026] Explanation of reference signs:

[0027] 1-vulcanization capsule, 2-center rod, 3-lower clamping assembly, 4-upper clamping assembly, 5-circulation pipeline, 6-ring seat, 7-gas inlet pipeline, 8-first stop valve, 9-pump, 10-heater, 11-second stop valve, 12-third stop valve, 13-air compressor, 14-gas driver, 15-air compression shell, 16-air compression impeller, 17-driving shell, 18-driving impeller, 19-connection cylinder, 20-rotating shaft, 21-tire mold, 22-bridge pipeline, 23-fourth stop valve, 24-gas storage tank, 25-fifth stop valve, 26-gas medium recovery pipeline, 27-sixth stop valve, 28-seventh stop valve, 29-pressure booster. DETAILED DESCRIPTION

[0028] The technical solutions of the present application will be described in detail below with reference to the drawings. Obviously, the described embodiments are some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor also belong to the protection scope of the present application.

[0029] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0031] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0032] The present application will be further described below in conjunction with the drawings and examples.

[0033] Example 1

[0034] Please refer to Figure 1 The embodiment 1 of the present application provides a tire vulcanization equipment, which comprises a vulcanization capsule 1, a center rod 2, a lower clamping assembly 3, an upper clamping assembly 4 and a circulation pipeline 5.

[0035] Specifically, the lower clamping assembly 3 clamps the lower clamping edge of the vulcanization capsule 1, and the upper clamping assembly 4 clamps the upper clamping edge of the vulcanization capsule 1. Thus, a closed space is formed in the inner cavity of the vulcanization capsule 1, and a gas medium such as pressurized nitrogen can be filled in the closed space, and the inner side of the tire to be vulcanized wrapped on the vulcanization capsule 1 is heated and pressurized via the vulcanization capsule 1. The gas medium can also be other inert gases, but considering the cost and the like, nitrogen is a preferred example.

[0036] The upper end of the center rod 2 is fixedly connected with the upper clamping assembly 4. The center rod 2 is movable relative to the lower clamping assembly 3 along the up-down direction, so as to realize the contraction and expansion of the vulcanization capsule 1. When the center rod 2 moves upward, the distance between the lower clamping assembly 3 and the upper clamping assembly 4 is increased, so that the radius of the vulcanization capsule 1 is reduced and the vulcanization capsule 1 is contracted. When the center rod 2 moves downward, the distance between the lower clamping assembly 3 and the upper clamping assembly 4 is reduced, so that the radius of the vulcanization capsule 1 is increased and the vulcanization capsule 1 is expanded after the gas medium is filled into the vulcanization capsule 1. During the vulcanization operation, the tire to be vulcanized is first placed on the vulcanization capsule 1, and then the center rod 2 is lowered to expand the vulcanization capsule 1, so that the tire is tightly wrapped on the vulcanization capsule 1.

[0037] The two ends of the circulation pipeline 5 are in communication with the inner cavity of the vulcanization capsule 1, forming a vulcanization circulation loop. Specifically, the tire vulcanization equipment further comprises a ring seat 6, and the lower clamping assembly 3 is arranged on the outer side of the ring seat 6. The ring seat 6 is provided with an air inlet channel and an air outlet channel, and the two ends of the circulation pipeline 5 are in communication with the air inlet channel and the air outlet channel, respectively.

[0038] The circulation pipeline 5 is connected with an air inlet pipeline 7, and the air inlet pipeline 7 is provided with a first stop valve 8. The circulation pipeline 5 is further provided with a pump 9 and a heater 10. During the tire vulcanization process, the air inlet pipeline 7 is suitable for filling the gas medium into the circulation pipeline 5, the heater 10 is suitable for heating the gas medium in the circulation pipeline 5, and the pump 9 is suitable for driving the gas medium to circulate in the inner cavity of the vulcanization capsule 1 and the circulation pipeline 5. The tire exchanges heat with the gas medium through the vulcanization capsule 1, until the tire vulcanization is completed.

[0039] Further, the circulation pipeline 5 is provided with a second stop valve 11 and a third stop valve 12, and the heater 10 and the pump 9 are located between the second stop valve 11 and the third stop valve 12. For example, the second stop valve 11, the pump 9, the heater 10 and the third stop valve 12 are sequentially arranged along the flow direction of the gas medium. The pump 9 drives the gas medium to flow in the vulcanization circulation loop composed of the vulcanization capsule 1 and the circulation pipeline 5, and is heated when flowing through the heater 10. The gas medium in the inner cavity of the vulcanization capsule 1 transmits heat to the tire through the vulcanization capsule 1.

[0040] The circulation pipeline 5 is also provided with a one-way valve, which is suitable for allowing the gas medium to flow in the circulation pipeline 5 in one direction. The pump 9 can be a reciprocating compressor, a diaphragm pump, etc. Preferably, the pump 9 of the present application comprises a compressor 13 and a gas driver 14, which drives the compressor 13 to operate. The compressor 13 comprises a compressor shell 15, which is provided with a compressor impeller 16, and the compressor shell 15 is provided with a first gas inlet and a first gas outlet. The gas driver 14 comprises a driver shell 17, which is provided with a driver impeller 18, and the driver shell 17 is provided with a second gas inlet and a second gas outlet. The compressor shell 15 and the driver shell 17 are connected through a connecting cylinder 19. A rotating shaft 20 penetrates the connecting cylinder 19, one end of the rotating shaft 20 extends into the compressor shell 15 and is fixedly connected with the compressor impeller 16, the other end of the rotating shaft 20 extends into the driver shell 17 and is fixedly connected with the driver impeller 18, and a bearing is arranged between the rotating shaft 20 and the connecting cylinder 19. The first gas inlet and the first gas outlet are located in the circulation pipeline 5, the driving gas enters the driver shell 17 through the second gas inlet, the driver impeller 18 rotates to drive the compressor impeller 16 to rotate through the rotating shaft 20, so as to drive the gas medium to flow and be pressurized.

[0041] Preferably, the driving gas is the same as the gas medium in the circulation pipeline 5, so that the tire vulcanization equipment of the present application can share a set of gas medium supply system, and the equipment structure is simplified.

[0042] Further, the tire vulcanization equipment also comprises a tire mold 21 arranged outside the vulcanization bladder 1. The tire mold 21 is suitable for covering the tire from the outside. The mold is also provided with a heating device, such as an electric heater 10, etc., so as to heat the tire from the outside. The mold is preferably an openable and closable mold, which comprises an upper mold and a lower mold.

[0043] When the tire is vulcanized, the tire mold 21 loads the tire onto the vulcanization bladder 1 from the outside, and then closes the mold, so that the tire is clamped in the vulcanization space between the vulcanization bladder 1 and the mold. The pump 9 pressurizes the gas medium to a preset pressure, the heater 10 heats the gas medium to a preset temperature, the gas medium flows along the vulcanization circulation loop, and the heated and pressurized gas heats and pressurizes the tire from the inside through the vulcanization bladder 1, while the mold heats and pressurizes the tire from the outside.

[0044] Example 2

[0045] Please refer to Figure 3 and Figure 4The embodiment 2 of the present application provides a tire vulcanization equipment, which is different from the tire vulcanization equipment of the embodiment 1 in that a bridge pipeline 22 is further connected to the circulation pipeline 5. The bridge pipeline 22 is connected to the circulation pipeline 5 at two ends, and the bridge pipeline 22 and the circulation pipeline 5 form a preheating circulation loop. The heater 10 and the pump 9 are arranged in the preheating circulation loop, and the second stop valve 11 and the third stop valve 12 are arranged outside the preheating circulation loop. The fourth stop valve 23 is arranged on the bridge pipeline 22. After the gaseous medium circulates along the vulcanization circulation loop to a preset time, the second stop valve 11 and the third stop valve 12 are closed, and the fourth stop valve 23 is opened. The pump 9 drives the gaseous medium to circulate along the preheating loop and maintain the gaseous medium at a preset temperature until the next tire starts vulcanization. The fourth stop valve 23 is closed, and the second stop valve 11 and the third stop valve 12 are opened. The preheated gaseous medium enters the inner cavity of the vulcanization bladder 1 and flows along the vulcanization circulation loop.

[0046] The tire vulcanization equipment provided in the embodiment can set a preheating circulation loop. After the gaseous medium circulates along the vulcanization circulation loop to a preset time, the gaseous medium continues to complete preheating in the preheating circulation loop until the next vulcanization cycle. The preheated gaseous medium circulates along the vulcanization circulation loop, the preheating time of the gaseous medium between adjacent vulcanization cycles is cancelled, and the tire vulcanization efficiency is improved.

[0047] Example 3

[0048] Please refer to Figure 5 and Figure 6 The embodiment 3 of the present application provides a tire vulcanization equipment, which is different from the tire vulcanization equipment of the embodiment 1 or the embodiment 2 in that the tire vulcanization equipment further comprises a gas storage tank 24. The gas storage tank 24 is connected to the second gas inlet of the gaseous medium driving machine 14. The fifth stop valve 25 is arranged between the gas storage tank 24 and the gaseous medium driving machine 14. The gaseous medium driving machine 14 is driven to work by the high-pressure gas in the gas storage tank 24.

[0049] Further, the gas storage tank 24 is further connected to a gaseous medium recovery pipeline 26. The gaseous medium recovery pipeline 26 can be connected to the circulation pipeline 5 or separately communicated with the vulcanization bladder 1. The sixth stop valve 27 is arranged on the gaseous medium recovery pipeline 26. After the tire vulcanization is completed, the gaseous medium in the vulcanization bladder 1 enters the gas storage tank 24 through the recovery pipeline. The gaseous medium can be recycled, and the gaseous medium can be fully utilized as a power source of the pump 9. The gas storage tank 24 can be connected to the supercharger 29 for pressure compensation of the gas storage tank 24.

[0050] The gas storage tank 24 can be like Figure 5The first stop valve 8 is arranged between the gas tank 24 and the circulation line 5, and the intake line 7 is further provided with a seventh stop valve 28. Alternatively, the intake line 7 can be arranged as shown in FIG. 2. Figure 6 The single circulation line 5 is connected to the gas tank 24.

[0051] The above description is merely that of the specific embodiments of the present application, to enable a person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments described herein but should be accorded the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tire vulcanization apparatus comprising: a vulcanization capsule (1), a lower clamping edge of which is clamped by a lower clamping assembly (3), and an upper clamping edge of which is clamped by an upper clamping assembly (4); a center rod (2), an upper end of which is fixedly connected with the upper clamping assembly (4), and which is arranged to be movable in an up-down direction relative to the lower clamping assembly (3); characterized in that it further comprises a circulation pipeline (5), both ends of which are in communication with the inner cavity of the vulcanization capsule (1), and a pump (9) and a heater (10) are arranged on the circulation pipeline (5), the pump (9) is adapted to drive the flow of a gaseous medium in the inner cavity of the vulcanization capsule (1) and the circulation pipeline (5), and the heater (10) is adapted to heat the gaseous medium; an air inlet pipeline (7) is further connected to the circulation pipeline (5) and is adapted to charge the gaseous medium into the circulation pipeline (5), and a first stop valve (8) is arranged on the air inlet pipeline (7).

2. The tire curing apparatus according to claim 1, wherein, A second stop valve (11) and a third stop valve (12) are arranged on the circulation pipeline (5), and the heater (10) and the pump (9) are located between the second stop valve (11) and the third stop valve (12).

3. Tyre vulcanisation apparatus according to claim 2, characterised in that, A bridge pipeline (22) is further connected to the circulation pipeline (5), both ends of the bridge pipeline (22) are connected with the circulation pipeline (5), the bridge pipeline (22) and the circulation pipeline (5) form a preheating circulation loop, the heater (10) and the pump (9) are located in the circulation loop, the second stop valve (11) and the third stop valve (12) are located outside the preheating circulation loop, and a fourth stop valve (23) is arranged on the bridge pipeline.

4. The tire curing apparatus of claim 1 wherein, The pump (9) comprises an air compressor (13) and a gas drive machine (14), and the gas drive machine (14) drives the air compressor (13) to operate.

5. Tyre vulcanisation apparatus according to claim 4, characterised in that, A gas storage tank (24) is further included, which is connected with the gas drive machine (14), and a fifth stop valve (25) is arranged between the gas storage tank (24) and the circulation pipeline (5).

6. The tire curing apparatus of claim 5 wherein, The gas storage tank (24) is arranged on the air inlet pipeline (7), the first stop valve (8) is arranged between the gas storage tank (24) and the circulation pipeline (5), and a seventh stop valve (28) is further arranged on the air inlet pipeline (7).

7. Tyre vulcanisation apparatus according to claim 6, characterised in that, A gaseous medium recovery pipeline (26) is connected between the gas storage tank (24) and the circulation pipeline (5), and a sixth stop valve (27) is arranged on the gaseous medium recovery pipeline (26).

8. The tire curing apparatus of claim 1 wherein, A tire mold (21) is further included and is arranged outside the vulcanization capsule (1).

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