PET bottle final blow process control

Stretch blow molding PRT bottle is the last link of forming PET bottle, which is directly related to the quality of PET bottle. Therefore, for the equipment involved in stretch blow PET bottle, the process must be strictly controlled in order to achieve high stretch blow molding processing. Quality PET bottle.

Artificial semi-automatic blow PET bottle equipment

Semi-automatic infrared rotary heater

The main function: Using infrared characteristics, evenly heated to the blow molding temperature.

The heater is mainly composed of a temperature-adjustable infrared lamp heating device, a speed-changing motor-driven sprocket chain rotation center revolution mechanism, a speed-regulating self-rotation mechanism mounted on a public chain, and a control cabinet. Etc. Work cycle: Artificially insert the parison, the embryo revolves and rotates. Under infrared radiation, uniform heating is achieved and the embryos reaching the blow temperature are removed manually. Stretch blow molding machine.

Main functions: Axial stretching is performed on the preform that reaches the blowing temperature, and then blown with high-pressure air.

Stretch blow molding machine mainly consists of: pneumatic mechanical mold clamping mechanism, pneumatic system, stretch blow molding device, mold, control system and other components.

Work cycle: Manually reach the blowing temperature of the parison into the single (double) side of the cavity, the mold by its own bottle thread self-positioning, and then mold, press the mold. Sealing cylinder work, sealed bottle mouth, stretching cylinder work, stretch rod ends against the bottom of the parison to axially stretch to the bottom of the cavity, high pressure air blowing into the parison cavity forming. After a certain period of pressure keeping and cooling, the stretching rod is returned, the piston of the sealing cylinder is returned, the mold is opened, and the product (PET molding bottle) is taken out.

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