Why does the plastic pelletizing machine returning material?

2021-05-27

Plastic pelletizing machine

The plastic pelletizing machine is mainly used for processing waste plastic film (industrial packaging film, agricultural film, greenhouse film, beer bags, handbags, etc.), woven bags, agricultural convenience bags, tubs, barrels, beverage bottles, furniture, daily necessities, etc. It applies to the most common waste plastics and is the most versatile, widely used and popular plastic recycling processing machine in the waste plastic recycling industry.

The energy-saving of plastic granulators can be divided into two parts: one is the power part, and the other is the heating part.
The power part of the energy-saving: most of the use of inverters, energy saving by saving the remaining energy of the motor, for example, the actual power of the engine is 50Hz, and you only need 30Hz in the production is enough to produce that excess energy consumption is wasted, the inverter is to change the power output of the motor to achieve the effect of energy-saving.
Heating part of energy-saving: heating part of energy-saving primarily uses electromagnetic heater energy saving; the energy-saving rate is about 30%-70% of the old resistance circle.

plastic pelletizer

In the use of large machinery and equipment often occurs in the process of many failures, for example, in the pelletizing machine work in the feed port will be found in the case of return material this time you need to find the specific reasons take the correct method of treatment.


Plastic pelletizing machine failure causes:

1. The initial installation and commissioning process, the phenomenon of material return is mainly a screw problem or blocking the material stalk to play high. Withdraw the screw grinding low point on it; may also be heating temperature settings, appropriate regulation of the temperature control box, and then observe whether the material also appears material back to the situation.

2. After working for some time, the pelletizer suddenly appears material back to the reason: pelletizer barrel and screw mixed with iron or hard blocks blocking the screw extrusion. If you do not pay attention for a long time, the screw and barrel damage seriously affect the average production.

3. In operation, the replacement of the screw will also appear after the phenomenon of material return. This situation replaces the screw, and the raw material barrel does not match; there is a gap. Screw to meet the original size of the length to diameter ratio. In addition, you can also understand the following causes of poor discharge or blockage of the equipment:
①. Whether there is a foreign body that is not easy to melt.
②. A section of the heater is not working, and the material is not melting well.
③. The operating temperature setting is low, or the molecular distribution of plastic is wide and unstable.


Plastic pelletizing machine discharge is not a smooth solution.

1. Check the heater, if necessary, replace
2. Clean and check the extrusion system and the head.
3. Verify the set temperature of each section, and if necessary, consult with the technician to increase the temperature setting value.
4. If it is average production in the exhaust hole bubble material, then is the screen blocked, the solution is to replace the screen.
5. If the machine on the material then there are two possibilities, the first is the low temperature of the die, plastic in the screw plasticized to the die where it cooled, clogged in there, the solution is to heat the die before starting, and then heat the pelletizer.

The above is the production process in the pelletizing machine. Some of the reasons for the return of material and handling methods should have you should help you.