Vacuumizing explosion-proof pressure relief device of rubber processing vulcanizing machine

Abstract

The utility model discloses a vacuumizing explosion-proof pressure relief device of a rubber processing vulcanizing machine, which relates to the technical field of rubber processing and comprises a vulcanizing machine capsule, a main pressure relief pipe, a first pressure relief pipe and a second pressure relief pipe. A first limiting ring and a second limiting ring are fixedly connected to the inner wall of a pipe opening of the first pressure relief pipe and the inner wall of a pipe opening of the second pressure relief pipe in a sleeved mode respectively, a buffer plug is movably connected into the first pressure relief pipe in a sleeved mode, a first spring is fixedly connected between the buffer plug and the inner wall of the first pressure relief pipe, and a round hole plate and a plunger are movably connected into the second pressure relief pipe in a sleeved mode respectively. By arranging the first pressure relief pipe and the second pressure relief pipe on the two sides of the pressure relief valve correspondingly, the effect of shunting sudden increased pressure is achieved, the problem that when pressure in a traditional pressure relief pipe is abnormal, when the pressure is suddenly increased, the pressure relief valve is prone to burst due to too large pressure is solved, and practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber processing, in particular to a vacuum explosion-proof pressure relief device for a rubber processing vulcanizer. Background Art

[0002] In tire manufacturing companies, in order to improve production efficiency, multiple vulcanizers generally share one main pipeline, and each vulcanizer capsule is connected to the main pipeline through a branch pipeline. The medium delivery and pressure relief switching in each capsule is based on the shut-off valves on each pipeline, which are opened and cut off in a certain sequence according to relevant process requirements. The high-pressure pipeline and the low-pressure pressure relief pipeline cannot be opened at the same time, otherwise the high pressure will flow into the low pressure, causing the pressure of the entire low-pressure pipeline system to increase, resulting in explosion and damage to the vulcanizer capsule.

[0003] The existing patent with publication number CN204249179U discloses a vulcanizer bladder vacuum abnormal explosion-proof pressure relief device, which solves the technical problem of the vulcanizer bladder being damaged by pressure when it is under non-vulcanization working state. However, in the above patent, during the operation of the pressure relief valve, if the pressure in the pressure relief pipe is abnormal, causing a sudden increase in pressure, it may cause the pressure relief valve to burst, which will seriously affect the use. Based on this, we propose an improved vacuum explosion-proof pressure relief device for rubber processing vulcanizer. Utility Model Content

[0004] The main purpose of the utility model is to provide a vacuum explosion-proof pressure relief device for a rubber processing vulcanizer, which can effectively solve the technical problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A vacuum explosion-proof pressure relief device for a rubber processing vulcanizer comprises a vulcanizer capsule, a main pressure relief pipe, a first pressure relief pipe and a second pressure relief pipe, wherein the first pressure relief pipe and the second pressure relief pipe are both fixedly connected at one side of the main pressure relief pipe, a first limit ring and a second limit ring are respectively fixedly sleeved on the inner walls of the pipe openings of the first pressure relief pipe and the second pressure relief pipe, a buffer plug is movably sleeved in the first pressure relief pipe, a first spring is fixedly connected between the buffer plug and the inner wall of the first pressure relief pipe, a circular hole plate and a plunger are respectively movably sleeved in the second pressure relief pipe, a plurality of second springs are fixedly connected between the second limit ring and the circular hole plate, and a connecting pipe is fixedly connected between the first pressure relief pipe and the second pressure relief pipe.

[0007] As a further solution of the utility model, one end of the pressure relief pipe is threadedly sleeved with an adjusting screw, one end of the adjusting screw is rotatably sleeved in a plunger, and the plunger is movably sleeved in a circular hole of the circular hole plate.

[0008] As a further solution of the utility model, a rotating wheel is fixedly sleeved on the other end of the adjusting screw, and the end of the plunger close to the circular hole plate is made of a conical structure.

[0009] As a further solution of the utility model, a water inlet pipe and a water outlet pipe are fixedly connected on both sides of the vulcanizer bladder, a vacuum pipe is fixedly connected to the water outlet pipe, a vacuum pipeline is fixedly connected between the other end of the vacuum pipe and the main pressure relief pipe, and a pressure relief valve and a check valve are rotatably connected to the main pressure relief pipe.

[0010] As a further solution of the utility model, the water inlet pipe and the water outlet pipe are rotatably connected to a water inlet valve and a water outlet valve respectively, and the vacuum pipe is rotatably connected to a vacuum control valve.

[0011] As a further solution of the utility model, the pressure relief pipe 1 and the pressure relief pipe 2 are respectively connected to the positions on both sides of the pressure relief valve through pipelines, and a pressure gauge is fixedly provided on the main pressure relief pipe near the pressure relief valve.

[0012] As a further solution of the utility model, the connecting pipe opening is arranged at a position on one side of the buffer plug, and the connecting pipe outlet is arranged at a position on a side of the circular hole plate away from the second limiting ring.

[0013] The beneficial effects of the utility model are as follows:

[0014] By arranging pressure relief pipe 1 and pressure relief pipe 2 on both sides of the pressure relief valve, when the pressure in the main pressure relief pipe is too high, part of the gas pushes open the buffer plug and enters the connecting pipe through the pressure relief pipe 1, and then presses open the orifice plate and flows out from the central circular hole. By diverting the air pressure of the pressure relief valve, the abnormal pressure on the valve body is reduced, and the pressure relief valve is prevented from bursting or other damages.

[0015] The position of the plunger relative to the orifice plate can be adjusted by rotating the adjusting screw, thereby facilitating the adjustment of the pressure required for gas diversion, and preventing the diverted gas and the main line gas from entering the main pressure relief pipe at the same time to cause the pipeline or the check valve to burst, which is practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of one side structure of a vacuum explosion-proof pressure relief device for a rubber processing vulcanizing machine according to the utility model;

[0017] Figure 2 This is a schematic diagram of the other side structure of a vacuum explosion-proof pressure relief device for a rubber processing vulcanizing machine according to the utility model;

[0018] Figure 3 It is a schematic diagram of the internal structure of the pressure relief pipe 1 and the pressure relief pipe 2 of the vacuum explosion-proof pressure relief device of the rubber processing vulcanizer of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the external structure of a pressure relief pipe 1 and a pressure relief pipe 2 of a vacuum explosion-proof pressure relief device of a rubber processing vulcanizer.

[0020] In the figure: 1. water inlet pipe; 2. water inlet valve; 3. vulcanizer capsule; 4. water outlet pipe; 5. water outlet valve; 6. vacuum tube; 7. vacuum control valve; 8. vacuum pipeline; 9. main pressure relief pipe; 10. pressure relief valve; 11. check valve; 12. pressure gauge; 13. pressure relief pipe one; 14. pressure relief pipe two; 15. limit ring one; 16. buffer plug; 17. spring one; 18. limit ring two; 19. circular hole plate; 20. spring two; 21. adjusting screw; 22. plunger; 23. connecting pipe. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] like Figure 1-4 As shown, a vacuum explosion-proof pressure relief device for a rubber processing vulcanizer includes a vulcanizer capsule 3, a main pressure relief pipe 9, a pressure relief pipe 13 and a pressure relief pipe 2 14. The pressure relief pipe 13 and the pressure relief pipe 2 14 are both fixedly connected at one side of the main pressure relief pipe 9. A limit ring 15 and a limit ring 2 18 are fixedly sleeved on the inner walls of the pipe openings of the pressure relief pipe 13 and the pressure relief pipe 2 14 respectively. A buffer plug 16 is movably sleeved in the pressure relief pipe 13. A spring 17 is fixedly connected between the buffer plug 16 and the inner wall of the pressure relief pipe 13. A circular hole plate 19 and a plunger 22 are movably sleeved in the pressure relief pipe 2 14 respectively. A plurality of springs 20 are fixedly connected between the limit ring 2 18 and the circular hole plate 19. A connecting pipe 23 is fixedly connected between the pressure relief pipe 13 and the pressure relief pipe 2 14.

[0023] In this embodiment, an adjusting screw 21 is threadedly sleeved at one end of the pressure relief pipe 14, and one end of the adjusting screw 21 is rotatably sleeved in a plunger 22. The plunger 22 is movably sleeved in the circular hole of the circular hole plate 19. By rotating the adjusting screw 21, the plunger 22 can be driven to move and adjust its pressure on the circular hole plate 19.

[0024] In this embodiment, a rotating wheel is fixedly sleeved on the other end of the adjusting screw 21 , and the end of the plunger 22 close to the circular hole plate 19 is made of a conical structure, and the gas flows out from between the side of the plunger 22 and the circular hole of the circular hole plate 19 .

[0025] In this embodiment, a water inlet pipe 1 and a water outlet pipe 4 are fixedly connected on both sides of the vulcanizer bladder 3, a vacuum pipe 6 is fixedly connected to the water outlet pipe 4, a vacuum pipeline 8 is fixedly connected between the other end of the vacuum pipe 6 and the main pressure relief pipe 9, and a pressure relief valve 10 and a check valve 11 are rotatably connected to the main pressure relief pipe 9, and the check valve 11 can prevent the backflow of external gas.

[0026] In this embodiment, a water inlet valve 2 and a water outlet valve 5 are rotatably connected to the water inlet pipe 1 and the water outlet pipe 4, respectively. Superheated water flows from the water inlet pipe 1 into the vulcanizer bladder 3, and then flows out from the water outlet pipe 4. A vacuum control valve 7 is rotatably connected to the vacuum pipe 6.

[0027] In this embodiment, pressure relief pipe 1 13 and pressure relief pipe 2 14 are respectively connected to the two sides of the pressure relief valve 10 through pipelines, and a pressure gauge 12 is fixedly provided on the main pressure relief pipe 9 near the pressure relief valve 10 to observe the air pressure after diversion.

[0028] In this embodiment, the opening of the connecting pipe 23 is arranged at a position on one side of the buffer plug 16, and the outlet of the connecting pipe 23 is arranged at a position on the side of the circular orifice plate 19 away from the limiting ring 18. The gas can enter the connecting pipe 23 only when the buffer plug 16 is pushed open, so that the gas in the connecting pipe 23 flows from the pressure relief pipe 1 13 to the pressure relief pipe 2 14, thereby avoiding backflow.

[0029] It should be noted that the utility model is a vacuum explosion-proof pressure relief device for a rubber processing vulcanizer. When in use, when the pressure in the main pressure relief pipe 9 is abnormal and suddenly increases, the airflow will enter the pressure relief pipe 13, and push open the buffer plug 16 to enter the pressure relief pipe 2 14 through the connecting pipe 23, and then press the circular orifice plate 19 to move, leaking out of the gap between the circular orifice plate 19 and the plunger 22, and then re-enter the main pressure relief pipe 9 from the circular hole to complete the diversion of the airflow and avoid the sudden excessive air pressure causing the pressure relief valve 10 to burst. At the same time, before use, the plunger 22 can be driven to move by rotating the adjusting screw 21. According to the different initial pressures applied by the plunger 22 to the circular orifice plate 19, the pressure required for gas diversion can be adjusted to buffer the gas and avoid the diverted gas and the airflow in the main pressure relief pipe 9 flowing to the check valve 11 together, causing the check valve 11 or the pipeline to burst.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A vacuum explosion-proof pressure relief device for a rubber processing vulcanizer, comprising a vulcanizer bladder (3), a main pressure relief pipe (9), a first pressure relief pipe (13) and a second pressure relief pipe (14), characterized in that: The pressure relief pipe 1 (13) and the pressure relief pipe 2 (14) are both fixedly connected at a position on one side of the main pressure relief pipe (9); a limit ring 1 (15) and a limit ring 2 (18) are respectively fixedly sleeved on the inner walls of the pipe openings of the pressure relief pipe 1 (13) and the pressure relief pipe 2 (14); a buffer plug (16) is movably sleeved in the pressure relief pipe 1 (13); a spring 1 (17) is fixedly connected between the buffer plug (16) and the inner wall of the pressure relief pipe 1 (13); a circular hole plate (19) and a plunger (22) are respectively movably sleeved in the pressure relief pipe 2 (14); a plurality of springs 2 (20) are fixedly connected between the limit ring 2 (18) and the circular hole plate (19); and a connecting pipe (23) is fixedly connected between the pressure relief pipe 1 (13) and the pressure relief pipe 2 (14).

2. The vacuum explosion-proof pressure relief device for a rubber processing vulcanizing machine according to claim 1, characterized in that: An adjusting screw (21) is threadedly sleeved on one end of the second pressure relief pipe (14), one end of the adjusting screw (21) is rotatably sleeved in a plunger (22), and the plunger (22) is movably sleeved in a circular hole of the circular hole plate (19).

3. The vacuum explosion-proof pressure relief device for a rubber processing vulcanizing machine according to claim 2, characterized in that: The other end of the adjusting screw rod (21) is fixedly sleeved with a rotating wheel, and the end of the plunger (22) close to the circular hole plate (19) is made of a conical structure.

4. The vacuum explosion-proof pressure relief device for a rubber processing vulcanizing machine according to claim 1, characterized in that: The two sides of the vulcanizer bladder (3) are respectively fixedly connected with a water inlet pipe (1) and a water outlet pipe (4); the water outlet pipe (4) is fixedly connected with a vacuum pipe (6); a vacuum pipeline (8) is fixedly connected between the other end of the vacuum pipe (6) and a main pressure relief pipe (9); and the main pressure relief pipe (9) is respectively rotatably connected with a pressure relief valve (10) and a check valve (11).

5. The vacuum explosion-proof pressure relief device for a rubber processing vulcanizing machine according to claim 4, characterized in that: The water inlet pipe (1) and the water outlet pipe (4) are rotatably connected to a water inlet valve (2) and a water outlet valve (5), respectively, and the vacuum pipe (6) is rotatably connected to a vacuum control valve (7).

6. The vacuum explosion-proof pressure relief device for a rubber processing vulcanizing machine according to claim 1, characterized in that: The pressure relief pipe 1 (13) and the pressure relief pipe 2 (14) are respectively connected to the positions on both sides of the pressure relief valve (10) through pipelines, and a pressure gauge (12) is fixedly arranged on one side of the main pressure relief pipe (9) close to the pressure relief valve (10).

7. The vacuum explosion-proof pressure relief device for a rubber processing vulcanizing machine according to claim 1, characterized in that: The opening of the connecting pipe (23) is arranged at a position on one side of the buffer plug (16), and the outlet of the connecting pipe (23) is arranged at a position on a side of the circular hole plate (19) away from the second limiting ring (18).

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