The working principle of PE bag heat sealing machine can be summarized as follows:

1. Main structure

Mainly composed of heat sealing device, transmission device, electrical control device, etc.

2. Heating method

The heat sealing device uses electric heating wire or electric heating gear for heating.

3. Sealing principle

The polyethylene material is heated to the melting point through a constant-temperature strip heating plate, and pressed to form and seal.

4. Transmission method

Use a motor to drive the sealing device to complete the sealing action.

5. Temperature control system

Set the temperature sensor and realize temperature control through PLC or empirical formula calculation.

6. Sealing parameters

Parameters such as heating temperature, heating time, and pressure can be adjusted to adapt to PE bags of different thicknesses.

7. Effect guaranteed

The entire sealing process is completed quickly to avoid burn-through and ensure a firm hot-melt seal.

8. Safety design

Set up safety doors, emergency stop buttons, etc., making the operation easy and safe.

In summary, the PE bag heat sealing machine seals the PE bag through electric heating and precise temperature control. It is simple to operate, highly efficient, and has a firm seal.