Pipeline device for improving vacuumizing efficiency of passenger car capsule

Abstract

The utility model relates to a pipeline device for improving the vacuumizing efficiency of a passenger car capsule, and belongs to the field of tire vulcanizing devices. The device is provided with a capsule which is connected with a capsule inlet pipeline and a capsule outlet pipeline, and is characterized in that a pressure retaining valve is arranged on the capsule outlet pipeline, and the other end of the pressure retaining valve is respectively connected with one end of a nitrogen recovery valve, one end of a main discharge valve, one end of an outlet vacuumizing valve, one end of a condensation discharge valve and one end of a steam trap valve; the capsule inlet pipeline is connected with one end of the steam valve, one end of the vacuumizing valve and one end of the nitrogen valve. Gas in the capsule can be exhausted in time, so that the problem that negative pressure cannot be reached in the vulcanizing capsule for a long time is solved, the capsule is quickly separated from a tire, the vulcanizing time is saved, and the vulcanizing production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of tire vulcanizing devices, specifically a pipeline device for improving the vacuuming efficiency of tire capsules in passenger vehicles. Background Technology

[0002] As is well known, most passenger car tire manufacturers currently use saturated steam and nitrogen as vulcanizing media for tire vulcanization. The tire vulcanization process involves placing the tire carcass in a vulcanization mold, with a vulcanizing bladder inside, filled with a vulcanizing medium (saturated steam or high-pressure nitrogen). After the initial vulcanization phase, the nitrogen inside the bladder is first recovered to the power station, processed, and reused. Secondly, the remaining gas inside the bladder is evacuated by a vacuum pump, separating the bladder from the tire for easy removal. In actual production, it often happens that after vulcanization, during the vacuuming phase, the pressure inside the bladder fails to reach a negative value quickly enough, preventing separation and increasing the vulcanization cycle, thus wasting production efficiency. Most tire companies artificially increase the vacuum level of the vacuum pump to improve vacuuming efficiency, but the actual effect is still insufficient, and energy consumption is increased. The root cause of pressure inside the bladder lies in the unreasonable design of the vacuuming pipeline, leading to low vacuuming efficiency. Summary of the Invention

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a pipeline device to improve the vacuuming efficiency of passenger car capsules, thereby solving the problem that the negative pressure cannot be reached inside the vulcanized capsule for a long time.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a pipeline device for improving the vacuuming efficiency of a passenger car capsule, which is provided with a capsule and connected to a capsule inlet pipeline and a capsule outlet pipeline. The feature is that a pressure holding valve is installed on the capsule outlet pipeline, and the other end of the pressure holding valve is connected to one end of a nitrogen recovery valve, a main exhaust valve, an exhaust vacuum valve, a condensate exhaust valve and a steam trap valve, respectively. The capsule inlet pipeline is connected to one end of a steam valve, an exhaust vacuum valve and a nitrogen valve, respectively.

[0005] The beneficial effects of this invention are that it can promptly remove the gas inside the capsule, thereby solving the problem that the negative pressure inside the vulcanizing capsule cannot be reached for a long time, allowing the capsule to quickly separate from the tire, saving vulcanization time and improving vulcanization production efficiency. Attached Figure Description

[0006] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0007] Figure 1 This is a schematic diagram of the structure of the present invention.

[0008] In the diagram: 1. Capsule, 2. Pressure holding valve, 3. Nitrogen recovery valve, 4. Main drain valve, 5. Vacuum outlet valve, 6. Condensate drain valve, 7. Steam trap valve, 8. Steam valve, 9. Vacuum inlet valve, 10. Nitrogen valve, 11. Capsule inlet pipe, 12. Capsule outlet pipe. Detailed Implementation

[0009] In the figure, the present invention is provided with a capsule 1, which is connected to a capsule inlet pipe 11 and a capsule outlet pipe 12. A pressure holding valve 2 is installed on the capsule outlet pipe 12. The other end of the pressure holding valve 2 is connected to one end of a nitrogen recovery valve 3, a main exhaust valve 4, an exhaust vacuum valve 5, a condensate exhaust valve 6, and a steam trap valve 7, respectively. The capsule inlet pipe 11 is connected to one end of a steam valve 8, an exhaust vacuum valve 9, and a nitrogen valve 10, respectively.

[0010] This utility model is illustrated using any passenger car tire as an example. After the tire blank is loaded into the capsule 1, the tire blank enters the vulcanization stage after the vulcanizing machine closes the mold.

[0011] Steam stage: Steam valve 8 is open, pressure holding valve 2 is open, steam trap valve 7 is open, condensate drain valve 6 is open; nitrogen recovery valve 3 is closed, main drain valve 4 is closed, vacuum outlet valve 5 is closed, vacuum inlet valve 9 is closed, nitrogen valve 10 is closed.

[0012] Nitrogen stage: Nitrogen valve 10 is open, pressure holding valve 2 is closed, nitrogen recovery valve 3 is closed, main drain valve 4 is closed, vacuum outlet valve 5 is closed, condensate drain valve 6 is closed, steam trap valve 7 is closed, steam valve 8 is closed, and vacuum inlet valve 9 is closed.

[0013] Nitrogen recovery stage in the later stage of vulcanization: Pressure holding valve 2 is open, nitrogen recovery valve 3 is open; main exhaust valve 4 is closed, vacuum exhaust valve 5 is closed, condensate exhaust valve 6 is closed, steam trap valve 7 is closed, steam valve 8 is closed, vacuum inlet valve 9 is closed, and nitrogen valve 10 is closed.

[0014] In the later stage of vulcanization, the main exhaust stage is as follows: pressure holding valve 2 is open, main exhaust valve 4 is open, nitrogen recovery valve 3 is closed, vacuum exhaust valve 5 is closed, condensate exhaust valve 6 is closed, steam trap valve 7 is closed, steam valve 8 is closed, vacuum inlet valve 9 is closed, and nitrogen valve 10 is closed.

[0015] Vacuuming stage in the later stage of vulcanization: Pressure holding valve 2 is open, vacuum outlet valve 5 is open, vacuum inlet valve 9 is open; nitrogen recovery valve 3 is closed, main exhaust valve 4 is closed, condensate exhaust valve 6 is closed, steam trap valve 7 is closed, steam valve 8 is closed, and nitrogen valve 10 is closed.

[0016] The mold is opened and the tire is removed, marking the end of vulcanization.

[0017] During the tire curing stage, the vacuum valve 5 and the vacuum valve 9 are always closed, while other valves are opened and closed according to different curing steps. In the later stage of curing, when the vacuuming stage begins, the pressure holding valve 2 is opened, the vacuum valve 5 and the vacuum valve 9 are opened, and other valves are closed. This increases the vacuuming force and can quickly remove the gas inside the bladder, thus allowing the bladder to separate smoothly from the tire.

Claims

1. A piping device for improving the vacuuming efficiency of a passenger vehicle capsule, comprising a capsule connected to a capsule inlet pipe and a capsule outlet pipe, characterized in that, A pressure-holding valve is installed on the capsule outlet pipeline. The other end of the pressure-holding valve is connected to one end of the nitrogen recovery valve, the main exhaust valve, the vacuum outlet valve, the condensate exhaust valve, and the steam trap valve, respectively. The capsule inlet pipeline is connected to one end of the steam valve, the vacuum inlet valve, and the nitrogen valve, respectively.

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