Shaping and preheating system for central mechanism capsule of tire vulcanizing machine

Abstract

A shaping and preheating system for a central mechanism capsule of a tire vulcanizer comprises a capsule, the capsule is connected with an air inlet shaping / vulcanization stop valve and an exhaust shaping / vulcanization stop valve through an air inlet pipeline and an exhaust pipeline respectively, the air inlet shaping / vulcanization stop valve is connected with a shaping / preheating stop valve through a pipeline, the shaping / preheating stop valve is connected with a steam balance valve through a steam pipeline, the steam balance valve is connected with a steam filter through a steam pipeline, and the steam filter is connected with low-pressure steam through a steam pipeline; the shaping / preheating stop valve is connected with a check valve through a nitrogen pipeline, the check valve is connected with a nitrogen balance valve through a nitrogen pipeline, the nitrogen balance valve is connected with a filter through a nitrogen pipeline, and the filter is connected with shaping nitrogen through a nitrogen pipeline; therefore, the system is simple and convenient, the use efficiency of equipment is improved, and the service life of the capsule is ensured.

Description

Technical Field

[0001] This utility model relates to the field of shaping and preheating technology, specifically to a shaping and preheating system for the central mechanism capsule of a tire vulcanizing machine. Background Technology

[0002] The bladder in the central mechanism of a tire vulcanizing machine is mainly used for tire molding, pressure and temperature transmission, sealing and pressure holding. It is usually made of high-temperature and high-pressure resistant synthetic rubber and directly determines the vulcanization efficiency, tire uniformity and service life. It is an indispensable core component in tire manufacturing.

[0003] Currently, the commonly used central mechanism capsules are directly shaped using nitrogen. When replacing new products, because they are not heated, their flexibility is poor. Direct stretching and inflation can easily damage the capsules and affect their lifespan. Usually, it is necessary to close the mold and rely on the heat dissipation of the tire mold to preheat them. The preheating time is relatively long because the capsules cannot withstand too much pressure when the mold is open. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a shaping and preheating system for the central mechanism capsule of a tire vulcanizing machine that is easy to operate, greatly improves the preheating efficiency of capsule replacement, and extends service life.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A shaping and preheating system for the bladder of a tire vulcanizing machine's central mechanism includes a bladder. The bladder is connected to an intake shaping / vulcanizing shut-off valve and an exhaust shaping / vulcanizing shut-off valve via an intake pipe and an exhaust pipe, respectively. The intake shaping / vulcanizing shut-off valve is connected to a shaping / preheating shut-off valve via a pipe.

[0007] The shaping / preheating shut-off valve is connected to a steam balancing valve via a steam pipe, the steam balancing valve is connected to a steam filter via a steam pipe, and the steam filter is connected to low-pressure steam via a steam pipe.

[0008] The shaping / preheating shut-off valve is connected to a check valve via a nitrogen pipeline. The check valve is connected to a nitrogen balancing valve via a nitrogen pipeline. The nitrogen balancing valve is connected to a filter via a nitrogen pipeline. The filter is connected to shaping nitrogen via a nitrogen pipeline.

[0009] In one embodiment, the intake shaping / vulcanization shut-off valve is further connected to an internal pressure intake assembly; the exhaust shaping / vulcanization shut-off valve is further connected to an internal pressure exhaust valve assembly and a shaping vent valve.

[0010] In one embodiment, the shaping / preheating shut-off valve is further connected to a shaping switching solenoid valve.

[0011] In one embodiment, a capsule preheating / shaping switching valve is also included, wherein both the steam balancing valve and the nitrogen balancing valve are connected to the capsule preheating / shaping switching valve via pipelines.

[0012] In one embodiment, the capsule preheating / shaping switching valve is also connected to an electrical converter.

[0013] In one embodiment, the electrical converter is connected to a pressure regulating valve.

[0014] In one embodiment, the pressure regulating valve is connected to a gas source.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. This utility model uses low-pressure steam preheating and an electrical converter to control the output pressure of the nitrogen balance valve and the steam balance valve, so that the capsule can be preheated to the optimal temperature for the release of capsule material properties in a short time. The nitrogen shaping and low-pressure steam preheating are switched by the shaping / preheating cut-off valve, which is simple to operate and greatly improves the preheating efficiency of capsule replacement. The effect is very significant in actual use.

[0017] 2. This utility model is relatively simple, improves equipment efficiency, and ensures the service life of the capsules. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the system in Embodiment 1 of this utility model.

[0019] In the diagram: 1. Capsule, 2. Inlet shaping / vulcanization shut-off valve, 2-1. Exhaust shaping / vulcanization shut-off valve, 3. Shaping / preheating shut-off valve, 4. Check valve, 5. Nitrogen balance valve, 6. Steam filter, 6-1. Filter, 7. Steam balance valve, 8. Capsule preheating / shaping switching valve, 9. Shaping switching solenoid valve, 10. Electrical converter, 11. Pressure regulating valve. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Example 1

[0022] like Figure 1 As shown, this embodiment includes a capsule 1, which is connected to an intake shaping / vulcanization shut-off valve 2 and an exhaust shaping / vulcanization shut-off valve 2-1 via an intake pipe and an exhaust pipe, respectively. In this embodiment, the intake shaping / vulcanization shut-off valve 2 is connected to an internal pressure intake group; the exhaust shaping / vulcanization shut-off valve 2-1 is also connected to an internal pressure exhaust valve group and a shaping vent valve.

[0023] Furthermore, the air intake shaping / vulcanization shut-off valve 2 is connected to the shaping / preheating shut-off valve 3 via a pipeline; in this embodiment, the shaping / preheating shut-off valve 3 is connected to the steam balancing valve 7 via a steam pipeline, the steam balancing valve 7 is connected to the steam filter 6 via a steam pipeline, and the steam filter 6 is connected to low-pressure steam via a steam pipeline.

[0024] The shaping / preheating shut-off valve 3 is connected to a check valve 4 via a nitrogen pipeline. The check valve 4 is connected to a nitrogen balancing valve 5 via a nitrogen pipeline. The nitrogen balancing valve 5 is connected to a filter 6-1 via a nitrogen pipeline. The filter 6-1 is connected to shaping nitrogen via a nitrogen pipeline.

[0025] The shaping / preheating shut-off valve 3 is also connected to a shaping switching solenoid valve 9; in this embodiment, the shaping switching solenoid valve 9 is also connected to a 0.4 MPa air source.

[0026] In this embodiment, the capsule preheating / shaping switching valve 8, the steam balance valve 7 and the nitrogen balance valve 5 are all connected to the capsule preheating / shaping switching valve 8 through pipelines; the capsule preheating / shaping switching valve 8 is also connected to an electrical converter 10; the electrical converter 10 is connected to a pressure regulating valve 11; the pressure regulating valve 11 is connected to a gas source, namely a 0.4 MPa gas source.

[0027] Since no green tire is loaded during preheating, the pressure of the medium filling the capsule 1 cannot be too high. Therefore, the medium input pressure needs to be controlled when preheating with steam. Selecting an electrical converter 10 that is shared with nitrogen shaping can save the cost of corresponding control components.

[0028] The working principle of this utility model is as follows;

[0029] 1. When the equipment is in the mold-opening state, after replacing the capsule with a new one, the touch screen sets the corresponding parameters of the electrical converter 10 to control the input pressure of the shaping steam; the capsule preheating / shaping switch 8 selects to open the steam balance valve 7, and the shaping / preheating shut-off valve 3 selects low-pressure steam to enter the capsule 1 through the shaping switch solenoid valve 9, and the equipment closes the mold and completes the preheating of the capsule 1;

[0030] 2. After preheating, select the venting and venting through the exhaust and venting / vulcanization shut-off valve 2-1, open the mold and select to enter the normal vulcanization state, select the normal vulcanization parameters on the touch screen, control the venting nitrogen input pressure, select the opening of the nitrogen balance valve 5 through the capsule preheating / venting switch 8, and select the venting nitrogen to enter capsule 1 through the venting / preheating shut-off valve 3 via the venting switch solenoid valve 9 to complete the venting of capsule 1.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the technical solutions of this utility model have been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of this utility model.

Claims

1. A shaping and preheating system for the central mechanism capsule of a tire vulcanizing machine, characterized in that: The capsule (1) is connected to an intake shaping / vulcanization shut-off valve (2) and an exhaust shaping / vulcanization shut-off valve (2-1) via an intake pipe and an exhaust pipe, respectively. The intake shaping / vulcanization shut-off valve (2) is connected to a shaping / preheating shut-off valve (3) via a pipe. The shaping / preheating shut-off valve (3) is connected to a steam balancing valve (7) via a steam pipe. The steam balancing valve (7) is connected to a steam filter (6) via a steam pipe. The steam filter (6) is connected to low-pressure steam via a steam pipe. The shaping / preheating shut-off valve (3) is connected to a check valve (4) via a nitrogen pipeline. The check valve (4) is connected to a nitrogen balance valve (5) via a nitrogen pipeline. The nitrogen balance valve (5) is connected to a filter (6-1) via a nitrogen pipeline. The filter (6-1) is connected to shaping nitrogen via a nitrogen pipeline.

2. The shaping and preheating system for the central mechanism capsule of the tire vulcanizing machine according to claim 1, characterized in that: The intake shaping / vulcanization shut-off valve (2) is also connected to an internal pressure intake group; the exhaust shaping / vulcanization shut-off valve (2-1) is also connected to an internal pressure exhaust valve group and a shaping exhaust valve.

3. The shaping and preheating system for the central mechanism capsule of the tire vulcanizing machine according to claim 1, characterized in that: The shaping / preheating shut-off valve (3) is also connected to a shaping switching solenoid valve (9).

4. The shaping and preheating system for the central mechanism capsule of the tire vulcanizing machine according to claim 1, characterized in that: It also includes a capsule preheating / shaping switching valve (8), and the steam balance valve (7) and the nitrogen balance valve (5) are both connected to the capsule preheating / shaping switching valve (8) through pipelines.

5. The shaping and preheating system for the central mechanism capsule of the tire vulcanizing machine according to claim 4, characterized in that: The capsule preheating / shaping switching valve (8) is also connected to an electrical converter (10).

6. The shaping and preheating system for the central mechanism capsule of the tire vulcanizing machine according to claim 5, characterized in that: The electrical converter (10) is connected to a pressure regulating valve (11).

7. The shaping and preheating system for the central mechanism capsule of the tire vulcanizing machine according to claim 6, characterized in that: The pressure regulating valve (11) is connected to a gas source.

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