Extrusion blow molding machine is a kind of blow molding machine. The process flow is as follows: the tubular plastic parison obtained by extrusion or injection molding of thermoplastic resin is placed in the split mold while it is hot, and compressed air is injected into the parison immediately after the mold is closed, so that the plastic parison is inflated. Closely attached to the inner wall of the mold, after cooling and demoulding, various hollow products can be obtained. Plastics suitable for blow molding include polyethylene, polyvinyl chloride, polypropylene, polyester, etc., and the resulting hollow containers are widely used as industrial packaging containers

The energy saving of the extrusion blow molding machine can be divided into two parts: one is the power part and the other is the heating part.

Energy saving in the power part: Most of them use frequency converters, and the energy saving method is to save the remaining energy consumption of the motor. For example, the actual power of the motor is 50Hz, but you actually only need 30Hz in production, which is enough for production, and the excess energy consumption will be in vain. Wasted, the frequency converter is to change the power output of the motor to achieve the effect of energy saving.

Energy saving in the heating part: Most of the energy saving in the heating part is the use of electromagnetic heaters to save energy, and the energy saving rate is about 30%-70% of the old-fashioned resistance coil.

1. Compared with resistance heating, the electromagnetic heater has an extra layer of insulation layer, which increases the utilization rate of heat energy.

2. Compared with resistance heating, the electromagnetic heater directly acts on the material tube to heat, which reduces the heat loss of heat transfer.

3. Compared with resistance heating, the heating speed of electromagnetic heater is more than a quarter faster, which reduces the heating time.

4. Compared with resistance heating, the heating speed of the electromagnetic heater is faster, and the production efficiency is improved, so that the motor is in a saturated state, which reduces the power loss caused by high power and low demand. The above four points are the reason why Feiru electromagnetic heater can save energy up to 30%-70% on the blow molding machine.

Extrusion blow molding machine product parameters

Servo motor hydraulic clamping system, strong mold clamping force and low energy consumption.

The mechanical structure is exquisite and beautiful, the output is high, fast and stable.

Split control, can produce two kinds of products with the same raw material and different weight and capacity at the same time.

Electrical interlock safety protection device to prevent misuse and damage to equipment components.

The hydraulic pressure adopts Taiwan Oil Research Institute, which is efficient, stable and smooth in action.

Photoelectric switch, proximity switch, relay: Japan Omron, with accurate control accuracy and fast response.

Man-machine interface control program imported from Japan’s Mitsubishi or Germany’s Siemens, with stable performance and simple operation.

Air switch, contactor, switching power supply: French Schneider, durable.

The whole machine has the functions of automatic alarm and automatic fault detection and judgment, and the maintenance is convenient and fast.

*The configuration and parameters will vary with the improvement of the equipment, the specific contract shall prevail

The extrusion blow molding process consists of 5 steps:

1. Plastic parison (extrusion of hollow plastic tube);

2. Close the flap mold on the parison, clamp the mold and cut off the parison;

3. Inflate the mold to the cold wall of the mold cavity, adjust the opening and maintain a certain pressure during cooling;

4. Open the mold and remove the blown plastic product.

5. Trim the flash to get the finished product.

Some more extrusion blow moulding machine