Working principle of sealing for bag packaging machine:

one
The sealing machine consists of a frame, a deceleration and speed control transmission mechanism, a heating and cooling mechanism, a sealing and printing mechanism, a conveying device, and an electrical and electronic control system.

two
Connect the power supply, and all mechanisms will start working. After the electric heating element is powered on, it heats up rapidly and adjusts the upper and lower heating blocks to the desired temperature through the control system. The printing wheel rotates, and the cooling system starts cooling as needed. The conveyor belt rotates and is adjusted to the desired speed by the speed control device.

three
When the packaging containing items is placed on the conveyor belt, the sealing part of the bag is automatically fed into the two sealing belts in operation and brought into the heating zone. The heat of the heating block is transmitted to the sealing part of the bag through the sealing belt, causing the film to melt and soften. Then, it passes through the cooling zone, causing the surface temperature of the film to decrease appropriately. After rolling with a roller (or printing wheel), the upper and lower plastic films of the sealing part are bonded and pressed into a mesh pattern (or printed logo). Finally, the sealed packaging bag is sent out of the machine by a guide rubber belt and the conveyor belt to complete the sealing operation.