Blowing machine quadruple valve set

High pressure blowing valve set with recovery

Specially designed for Z-economic and fast blowing production, more efficient and energy-saving than blowing machines with high-pressure solenoid valves.

Uses reliable and proven valve technology with low-power, direct-acting custom pilot solenoid valves for easy maintenance and repair

P1: Pre-blow

P2: Main blowing

REC: Recycle

EXH: Exhaust

Pilot gas pressure: 7 bar + 0 / -0.5 bar

Working pressure: 4 ~ 40 bar

Blowing machine blowing process is a stretching process, the equipment will be related to the material in the process along the two-way stretching, orientation, alignment, and therefore improve the mechanical properties of the bottle wall, improve the tensile, tensile and impact strength, and has a good airtightness. The air source triplet inlet, although the tension can improve the strength, but not too large, to control the stretching and blowing rate: diameter can not exceed 3.5 ~ 4.2, axial can not exceed 2.8 ~ 3.1. bottle thickness should not exceed 4.5 mm.

The blowing process takes place between glass and crystal temperature, which is generally controlled at 90-120 degrees Celsius. During this time, PET presents high elasticity and is quickly blown and formed into a transparent glass bottle after cooling and setting.

The blowing process is divided into: stretching - primary blowing - secondary blowing, the three actions are short, but must be coordinated, especially the first two steps determine the entire bottle distribution and the quality of the blown bottle. Therefore, it is necessary to adjust the air filtration combination triad: stretching start timing, stretching speed, pre-blowing start, blowing out timing, blowing out time, blowing out time, blowing air time, blowing air speed, blowing air speed, etc., which can control the temperature distribution of the whole bottle, as well as the temperature difference between the inner and outer wall of the bottle.

Conclusion: The bottle blanks are transported from the automatic loading machine to the main machine of the bottle blowing machine, transported to the oven through the conveying belt, preheated, transported to the closing device, and blown into the bottle body with tie rod stretching, pre-blowing, and high pressure blowing, without human intervention, completely done with the bottle blowing machine, with a high degree of automation, saving labor and cost, and increasing the overall economic benefits.