Gas circulating pump and tire vulcanizing device comprising same

Abstract

The utility model belongs to the technical field of tire vulcanization, and particularly relates to a gas circulating pump and a tire vulcanization device comprising the gas circulating pump. The gas circulating pump comprises a first thermotechnical pipeline, a second thermotechnical pipeline and a third thermotechnical pipeline which are sequentially communicated, a movable structure is installed in the second thermotechnical pipeline and divides the second thermotechnical pipeline into a first cavity and a second cavity, the first cavity is communicated with the first thermotechnical pipeline through a first one-way valve, and the second cavity is communicated with the third thermotechnical pipeline through a second one-way valve. The second chamber is communicated with a third thermotechnical pipeline through a third one-way valve; and one end of the bypass branch is communicated with the first cavity, the other end of the bypass branch is communicated with the second cavity, and a second one-way valve is arranged on the bypass branch. According to the gas pressurizing device, the gas pressurizing device of a single movable structure is achieved through few parts, the structure is more compact, the applicability is high, the parts are universal and easy to replace, maintenance and replacement are easy, and the manufacturing cost and the maintenance cost of equipment are reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of tire vulcanization, and particularly relates to a gas circulating pump and a tire vulcanization device comprising the same. BACKGROUND

[0002] The tire vulcanization process is an important link in the tire manufacturing process. It places the tire in a specific vulcanization equipment, and makes the tire material vulcanize under the conditions of heating and pressurization, so as to improve the overall hardness and durability of the tire. In the electric heating tire vulcanization equipment, the circulation and heating of high-pressure gas (generally nitrogen) is the core part of the vulcanization process. This process relies on the core component of the gas circulating pump to achieve the continuous circulation and heating of the gas.

[0003] However, there are some problems in the gas circulating pump in the current electric heating tire vulcanization equipment. First, the volume of the circulating pump is usually large, which increases the overall size and floor area of the equipment, which is not conducive to the compactness of the equipment and the improvement of the space utilization. Secondly, the structure of the circulating pump is relatively complex, which contains multiple precise components and connecting parts, which increases the manufacturing difficulty and cost of the equipment. At the same time, the complex structure also increases the maintenance difficulty and subsequent maintenance cost of the equipment, because more professional knowledge and skills are needed for repair and maintenance.

[0004] In summary, the gas circulating pump in the current electric heating tire vulcanization equipment has the problems of large volume, complex structure, high maintenance cost, etc. In order to solve these problems, a new type of gas circulating pump needs to be developed to reduce the manufacturing cost and maintenance cost of the equipment. Invention content

[0005] The purpose of the present application is to provide a gas circulating pump and a tire vulcanization device comprising the same, so as to reduce the manufacturing cost and maintenance cost of the equipment.

[0006] The embodiments of the present application can be realized by the following technical solutions:

[0007] A gas circulating pump comprises a first heat work pipeline, a second heat work pipeline and a third heat work pipeline which are sequentially communicated, the other end of the first heat work pipeline is communicated with an air inlet circulating pipeline, and the other end of the third heat work pipeline is communicated with an air outlet circulating pipeline;

[0008] An activity structure is installed in the second heat work pipeline, the activity structure separates the second heat work pipeline into a first chamber and a second chamber, the first chamber is communicated with the first heat work pipeline through a first one-way valve, and the second chamber is communicated with the third heat work pipeline through a third one-way valve;

[0009] A bypass branch is further included, one end of which communicates with the first chamber and the other end of which communicates with the second chamber, and a second one-way valve is arranged on the bypass branch.

[0010] Further, the movable structure is connected with the second thermal pipeline through a sealing medium.

[0011] Preferably, a driving structure is further included, an output end of which is connected with the movable structure, and the driving structure can drive the movable structure to move in the second thermal pipeline.

[0012] Preferably, a gas heater is further included, which is installed in the first thermal pipeline.

[0013] Further, the gas heater is in interference fit with the inner wall of the first thermal pipeline.

[0014] Preferably, a first vulcanization capsule is further included, an inner cavity of which is connected with the air intake circulation pipeline and the exhaust circulation pipeline.

[0015] A tire vulcanization device includes the gas circulation pump, and

[0016] A lower clamping assembly;

[0017] An upper clamping assembly;

[0018] A second vulcanization capsule, a lower clamping edge of which is clamped by the lower clamping assembly, an upper clamping edge of which is clamped by the upper clamping assembly, which is arranged at the inner side of the tire mold, and which is provided with a tire to be vulcanized between the second vulcanization capsule and the tire mold;

[0019] A center rod, an upper end of which is fixedly connected with the upper clamping assembly, and which is arranged to be movable up and down relative to the lower clamping assembly to expand or contract the second vulcanization capsule;

[0020] A ring seat, which is arranged at the inner side of the lower clamping assembly, and which is provided with an air intake hole and an exhaust hole, and the air intake hole and the exhaust hole form an air intake circulation pipeline and an exhaust circulation pipeline between them, and the gas circulation pump is communicated between the air intake circulation pipeline and the exhaust circulation pipeline.

[0021] Further, an air intake control valve is arranged on the air intake circulation pipeline, and the air intake control valve is communicated with an external air intake pipeline.

[0022] Further, a circulation control valve is further arranged on the air intake circulation pipeline.

[0023] Further, the exhaust circulation pipeline is provided with an exhaust control valve, which is communicated with the external exhaust pipeline.

[0024] The gas circulation pump and the tire vulcanizing device provided by the embodiments of the present application have at least the following beneficial effects:

[0025] The gas pressurizing device with single movable structure is realized by few components, the structure is more compact, the applicability is high, the components are universal and easy to replace, the maintenance and replacement are easy, and the manufacturing cost and maintenance cost of the equipment are reduced.

[0026] The gas pressurizing structure and the heating structure are combined by installing the gas heater in the first heat pipeline, and the structure is more compact.

[0027] The first vulcanizing capsule is connected with the air inlet circulation pipeline and the exhaust circulation pipeline, and has the advantages of improving the sealing performance, enhancing the pressure bearing capacity, and optimizing the gas flow. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 FIG. 1 is a structural schematic diagram of a gas circulation pump according to the present application;

[0029] Figure 2 FIG. 2 is a schematic structural cross-sectional view of a tire vulcanizing device according to the present application.

[0030] Reference signs: A, air inlet circulation pipeline, B, exhaust circulation pipeline, X, air inlet hole, Y, exhaust hole, S, tire mold, 1, gas circulation pump, 10, gas heater, 11, first heat pipeline, 12, second heat pipeline, 121, first chamber, 122, second chamber, 13, third heat pipeline, 14, movable structure, 15, first one-way valve, 16, second one-way valve, 17, third one-way valve, 18, bypass branch, 19, driving structure, 2, second vulcanizing capsule, 3, lower clamping assembly, 4, upper clamping assembly, 5, center rod, 6, ring seat, 7, air inlet control valve, 8, circulation control valve, 9, exhaust control valve. DETAILED DESCRIPTION

[0031] Hereinafter, the present application will be further described based on the preferred embodiments and with reference to the accompanying drawings.

[0032] The vocabulary used in this specification is for illustrative purposes and is not intended to limit the scope of this application. Unless otherwise expressly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection via an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of these terms in this application.

[0033] Furthermore, in the description of the embodiments of this application, various components on the drawings have been enlarged or reduced for ease of understanding, but this is not intended to limit the scope of protection of this application.

[0034] Figure 1 This is a schematic diagram of the structure of a gas circulation pump 1 according to this application, as shown below. Figure 1 As shown, the gas circulation pump 1 includes a first thermal pipeline 11, a second thermal pipeline 12, and a third thermal pipeline 13 connected in sequence. The other end of the first thermal pipeline 11 is connected to the intake circulation pipeline A, and the other end of the third thermal pipeline 12 is connected to the exhaust circulation pipeline B. A movable structure 14 is installed inside the second thermal pipeline 12, which divides the second thermal pipeline 12 into a first chamber 121 and a second chamber 122. The first chamber 121 is connected to the first thermal pipeline 11 through a first check valve 15, and the second chamber 122 is connected to the third thermal pipeline 12 through a third check valve 17. It also includes a bypass branch 18, one end of which is connected to the first chamber 121, and the other end is connected to the second chamber 122. A second check valve 16 is provided on the bypass branch 18. The first check valve 15 ensures that gas can only flow from the second thermal pipeline 12 to the first thermal pipeline 11, the second check valve 16 ensures that gas can only flow from the second chamber 122 to the first chamber 121, and the third check valve 17 ensures that gas can only flow from the third thermal pipeline 13 to the second thermal pipeline 12. The movable structure 14 can move along the inner wall of the second thermal pipeline 12, thereby changing the volume of the first chamber 121 and the second chamber 122, and thus opening or closing the check valves, thereby driving the gas flow.

[0035] It is conceivable that the movable structure 14 can reciprocate horizontally, vertically, or inclined; further details will not be elaborated here. This application uses... Figure 1 The location of the movable structure 14 in the figure is explained. The movable structure 14 is set in the horizontal direction and can move back and forth along the length of the second thermal pipeline 12 within the second thermal pipeline 12, thereby realizing the reverse change of the volume of the first chamber 121 and the second chamber 122.

[0036] It can be imagined that the first chamber 121 can be located close to one side of the first thermal pipeline 11 or close to one side of the third thermal pipeline 13. For the convenience of description, the chamber close to the first thermal pipeline 11 is taken as the first chamber 121.

[0037] The specific implementation process is as follows: when the movable structure 14 moves in the direction close to the first thermal pipeline 11, the volume of the first chamber 121 is reduced, the gas pressure is increased, the first one-way valve 15 is forced to open, the gas in the first chamber 121 is discharged to the first thermal pipeline 11, at the same time, the volume of the second chamber 122 is increased, the gas pressure is reduced, the gas pressure in the third thermal pipeline 13 is greater than that in the second chamber 122, the third one-way valve 17 is forced to open by the gas pressure in the third thermal pipeline 13, and the gas in the third thermal pipeline 13 enters the second chamber 122, so that the gas flows from the first chamber 121 to the second chamber 122; when the movable structure 14 moves in the direction away from the first thermal pipeline 11, the volume of the first chamber 121 is increased, the gas pressure is reduced, the volume of the second chamber 122 is reduced, the gas pressure is increased, the gas pressure in the second chamber 122 is greater than that in the first chamber 121, the second one-way valve 16 is forced to open, and the gas flows from the second chamber 122 to the first chamber 121. Thus, the exhaust process of the gas circulating pump is realized. The gas pressurizing device of the single movable structure 14 is realized by using few components, the structure is more compact, and the applicability is high, the components are universal and easy to replace, easy to maintain and replace, and the manufacturing cost and maintenance cost of the equipment are reduced.

[0038] Further, to ensure the mutual independence of the first chamber 121 and the second chamber 122, the movable structure 14 is connected with the second thermal pipeline 12 through a sealing medium.

[0039] It can be imagined that the movable structure 14 can be a piston, a plunger, a slider or the like.

[0040] In some preferred embodiments of the present application, the movable structure 14 is a piston, which has the advantages of compact structure, high precision, good sealing effect, high conversion efficiency and strong adaptability.

[0041] It can be imagined that the movable structure 14 can be driven by manual or electric means.

[0042] In some preferred embodiments of the present application, to improve the production efficiency and precision, the gas circulating pump 1 further comprises a driving structure 19, the output end of the driving structure 19 is connected with the movable structure 14, and the movable structure can be driven to move in the second thermal pipeline 12.

[0043] It can be imagined that the driving structure 19 can be a cylinder structure, a crank structure or a gear and rack movement. No matter what kind of driving structure 19 is used, as long as it can drive the movable structure 14 to reciprocate.

[0044] In the tire vulcanization device, the gas needs to be not only circulated but also heated by the heating device. In the existing tire vulcanization device, the heating device and the gas circulating pump 1 are two independent devices, each of which plays a role.

[0045] In some preferred embodiments of the present application, as Figure 1 described, the gas circulating pump 1 in the present application further comprises a gas heater 10 installed in the first thermal pipeline 11, which combines the gas pressurizing structure and the heating structure, and the structure is more compact.

[0046] Further, the gas heater 10 is in interference fit with the inner wall of the first thermal pipeline 11, so that the gas heater 10 is as close as possible to the inner wall of the first thermal pipeline 11, and at the same time, the outer wall of the first thermal pipeline 11 can be heated by combining the external heating component, the heat is transferred to the internal heat sink of the gas heater 10, and then the heat is exchanged to the gas flowing through the first thermal pipeline 11, thereby ensuring the realization of the heating function.

[0047] In some preferred embodiments of the present application, the gas circulating pump 1 further comprises a first vulcanization capsule, the inner cavity of the first vulcanization capsule is connected with the air inlet circulating pipeline A and the exhaust circulating pipeline B, which has the advantages of improving the sealing, enhancing the pressure bearing capacity, and optimizing the gas flow.

[0048] The overall structure diagram of the tire vulcanization device to which the gas circulating pump 1 is applied will be introduced below.

[0049] Figure 2 A cross-sectional view showing the schematic structure of the tire vulcanization device is shown in Figure 2 , which comprises a gas circulating pump 1, a second vulcanization capsule 2, a lower clamping assembly 3, an upper clamping assembly 4, a center rod 5 and a ring seat 6, wherein the gas circulating pump 1 is used to provide a certain temperature and pressure gas into the second vulcanization capsule 2 during the tire vulcanization process, so as to ensure that the required gas during the vulcanization process can be continuously and stably supplied to the inside of the tire; the second vulcanization capsule 2 closely adheres to the inner wall of the tire and is inflated by the gas, so as to apply uniform pressure to the tire to vulcanize it. Thus, there is a close matching relationship between each component in the tire vulcanization device and the tire to be vulcanized, and these components cooperate together to ensure that the tire can obtain uniform pressure and stability during the vulcanization process, thereby realizing high-quality vulcanization effect.

[0050] Specifically, the lower clamping edge of the second vulcanization capsule 2 is clamped by the lower clamping assembly 3, and the upper clamping edge is clamped by the upper clamping assembly, the second vulcanization capsule 2 is arranged on the inner side of the tire mold S, and the tire to be vulcanized is arranged between the second vulcanization capsule 2 and the tire mold S.

[0051] Specifically, the upper end of the central rod 5 is fixedly connected to the upper clamping assembly 4, and the central rod 5 is configured to move relative to the lower clamping assembly 3 in the vertical direction to expand or contract the second vulcanized capsule 2.

[0052] Specifically, the ring seat 6 is located inside the lower clamping assembly 3. An air inlet X and an exhaust outlet Y are provided on the ring seat 6. An air intake circulation pipe A and an exhaust circulation pipe B are formed between the air intake X and the exhaust outlet Y. The gas circulation pump 1 is connected between the air intake circulation pipe A and the exhaust circulation pipe B.

[0053] Furthermore, such as Figure 2 As shown, an intake control valve 7 is installed on the intake circulation pipeline A. The intake control valve 7 is connected to the external intake pipe to control the flow rate and pressure regulation of the external intake air, thereby ensuring the vulcanization quality.

[0054] Furthermore, a circulation control valve 8 is also installed on the intake circulation pipeline A to precisely control the circulating gas and ensure the quality of vulcanization.

[0055] Furthermore, an exhaust control valve 9 is installed on the exhaust circulation pipeline B. The exhaust control valve 9 is connected to the external exhaust pipe to control the flow rate and pressure regulation of the external exhaust, thereby ensuring the vulcanization quality.

[0056] In some preferred embodiments of this application, the tire vulcanizing apparatus further includes a control system for automatically and precisely adjusting the intake control valve 7, the circulation control valve 8, and the exhaust control valve 9 to ensure the stability and controllability of the vulcanizing process.

[0057] The specific embodiments of this application have been described in detail above. For those skilled in the art, several improvements and modifications can be made to this application without departing from the principle of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A gas circulating pump (1), characterized in that: it comprises a first thermal pipeline (11), a second thermal pipeline (12) and a third thermal pipeline (13) which are communicated in sequence, one end of the first thermal pipeline (11) is communicated with an air inlet circulating pipeline (A), one end of the third thermal pipeline (13) is communicated with an air outlet circulating pipeline (B); a movable structure (14) is installed in the second thermal pipeline (12), the movable structure (14) divides the second thermal pipeline (12) into a first chamber (121) and a second chamber (122), the first chamber (121) is communicated with the first thermal pipeline (11) through a first one-way valve (15), the second chamber (122) is communicated with the third thermal pipeline (13) through a third one-way valve (17); and it further comprises a bypass branch (18), one end of the bypass branch (18) is communicated with the first chamber (121), the other end of the bypass branch (18) is communicated with the second chamber (122), and a second one-way valve (16) is arranged on the bypass branch (18).

2. The gas circulating pump (1) according to claim 1, characterized in that: the movable structure (14) is connected with the second thermal pipeline (12) through a sealing medium.

3. The gas circulating pump (1) according to claim 1, characterized in that: it further comprises a driving structure (19), an output end of the driving structure (19) is connected with the movable structure (14), and the driving structure (19) can drive the movable structure (14) to move in the second thermal pipeline (12).

4. The gas circulating pump (1) according to claim 1, characterized in that: it further comprises a gas heater (10), and the gas heater (10) is installed in the first thermal pipeline (11).

5. The gas circulating pump (1) according to claim 4, characterized in that: the gas heater (10) is in interference fit with the inner wall of the first thermal pipeline (11).

6. The gas circulating pump (1) according to claim 1, characterized in that: it further comprises a first vulcanization capsule, and the inner cavity of the first vulcanization capsule is connected with the air inlet circulating pipeline (A) and the air outlet circulating pipeline (B). a gas circulating pump (1) according to any one of claims 1-6, and a lower clamping assembly (3); an upper clamping assembly (4); a second vulcanization capsule (2), a lower clamping edge of the second vulcanization capsule (2) is clamped by the lower clamping assembly (3), an upper clamping edge of the second vulcanization capsule (2) is clamped by the upper clamping assembly (4), the second vulcanization capsule (2) is arranged on the inner side of a tire mold (S), and a tire to be vulcanized is arranged between the second vulcanization capsule (2) and the tire mold (S); a center rod (5), an upper end of the center rod (5) is fixedly connected with the upper clamping assembly (4), and the center rod (5) is arranged to be capable of moving in the up-down direction relative to the lower clamping assembly (3) to expand or contract the second vulcanization capsule (2). ​ ​ ​ 7. A tire vulcanizing apparatus characterized by comprising: ​ ​ ​ ​ ​ A ring seat (6) is arranged on the inner side of the lower clamping assembly (3), and air inlet holes (X) and air outlet holes (Y) are arranged on the ring seat (6), forming air inlet circulation pipelines (A) and air outlet circulation pipelines (B) between the air inlet holes (X) and the air outlet holes (Y), and the gas circulation pump (1) is communicated between the air inlet circulation pipelines (A) and the air outlet circulation pipelines (B).

8. The tire vulcanizing device according to claim 7, characterized in that: An air inlet control valve (7) is arranged on the air inlet circulation pipeline (A), and the air inlet control valve (7) is communicated with an external air inlet pipeline.

9. The tire vulcanizing device according to claim 8, characterized in that: A circulation control valve (8) is further arranged on the air inlet circulation pipeline (A).

10. The tire vulcanizing device according to claim 7, characterized in that: An air outlet control valve (9) is arranged on the air outlet circulation pipeline (B), and the air outlet control valve (9) is communicated with an external air outlet pipeline.

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