Gas recovery device of rotary bottle blowing machine

Abstract

The invention discloses a gas recovery device of a rotary bottle blowing machine. The gas recovery device comprises a gas inlet pipe, a gas outlet pipe, an outer rotary sleeve, an inner rotary sleeve, a first proportional pressure reducing valve, a second proportional pressure reducing valve and a recovery annular pipe, wherein a plurality of gas recovery openings are formed in the recovery annular pipe in an annular array; the recovery annular pipe is in pipeline connection with a recovery gas distribution block through a pneumatic ball valve; and a gas tank is connected to an air booster. The gas recovery device has the advantages that the structure is simple; and residual high-pressure gas after bottle blowing is finished can be recovered to be pressurized again for secondary blowing and tertiary blowing work, and also can be directly used as pilot gas of stretching cylinder sealing head and pre-blowing work without being pressurized, so that secondary use of waste gas is realized, production energy consumption is reduced directly, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the technical field of bottle blowing machines, in particular to a gas recovery device of a rotary bottle blowing machine. Background technique [0002] Traditional blow molding equipment that manufactures container bottles by means of extended blow molding, its blow molding system and operating system use the pressure of compressed air as the power source. During the blow molding process of the rotary blow molding machine, high-pressure air blowing The exhaust gas generated in the end is directly discharged into the external environment through the high-pressure muffler. Due to the high pressure and large flow rate of the gas discharged instantaneously, it will generate relatively large noise, which will seriously affect the health of the operators, and the high-pressure gas will be directly lost, directly affecting The production cost of the product. Contents of the invention [0003] The technical problem to be solved by ...

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Problems solved by technology

[0002] Traditional blow molding equipment that manufactures container bottles by extended blow molding method, its blow molding system and operating system use the pressure of compressed air as the power source. The exhaust gas generated in the end is directly discharged into the external environment through the high-pressure muffler. Due to the high pressure and large flow rate of the gas discharged instantaneously, it will generate a lot of noise, which will seriously affect the health of the operators, and the high-pressure gas will be directly lost, directly affecting Product production cost

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