The principle and structure of plastic bag sealing machine

1, What Is A Plastic Bag Sealing Machine

Plastic bag sealing machine is a sealing machine suitable for aluminum foil bags, plastic bags, composite bags, and other industries such as medicine, pesticides, food, daily chemicals, lubricants, etc. It can seal various plastic films (PE, PP, aluminum film, etc.) of materials. The plastic bag sealing machine has strong sealing and high efficiency; Simple and compact structure with small volume; Beautiful appearance, advanced technology, and low power consumption; The advantages of easy operation, maintenance, and upkeep.

 

2, The Principle And Structure Of Plastic Bag Sealing Machine

1. The plastic bag 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.

2. Turn on the power and all mechanisms start working. After the electric heating element is powered on, it heats up the upper and lower heating blocks rapidly and adjusts them to the desired temperature through the control system. The printing wheel rotates, and the cooling system starts cooling according to the needs. The conveyor belt rotates and is adjusted to the desired speed by the speed control device.

3. 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, through the cooling zone, the surface temperature of the film is appropriately reduced. Then, it is rolled by the embossing wheel (or printing wheel) to make the plastic film on the upper and lower parts of the sealing part stick and press a mesh pattern (or printing mark), and then the sealed packaging bag is sent out of the machine by the guiding rubber belt and the conveyor belt to complete the sealing operation.