The four-sided bag on the market is also called a three-dimensional bag. This bag has 4 dimensions such as length, width, height, and thickness at the same time. It is unfolded like a box and has 12 corners and 8 vertices, but one side is the entrance. Square bags are often used to pack air conditioners, refrigerators, computers and cosmetics, so let's learn about the production method of the four-sided bag together!

At present, on the market, the bottom piece of the four-sided sealing bag and the last week long piece, the bottom piece is connected to the bottom edge of the last week long piece, and the bottom piece is in a flat shape. The bottom structure of this kind of packaging bag is more complicated, difficult to process, and wrinkles are unscientific. The wrinkles on the front surface of the long seat last week when erected, the long seat last week is easy to bend, and the upper opening is easy to close. Although there are other square bags, the sides and bottom of the square bag are basically made of materials inserted individually during the production process. After the machine is aligned, there are many surfaces that need to be ironed, and the steps are more complicated, so ironing is very troublesome. The technical problem of the four-sided bag is to provide a square bag production line with high degree of automation, reasonable design, high production efficiency and low defect rate.

The four-sided bag is achieved through the following technical solutions:

The four-edge sealing bag is a square bag production line, including side film conveyor, base film conveyor, front film conveyor, and forming device. The transfer frame proposed by the four-edge sealing bag is a door structure, which passes through the photoelectric detection mechanism, the sliding mechanism and the compensation mechanism of the base film transfer device, and is fixed at both ends of the photoelectric detection mechanism and the compensation mechanism.

In addition, the end column of the front surface film operation of the conveying frame of the front surface film conveyor has a front surface film seasoning mechanism and a compensation adjusting frame, and the compensation adjusting frame is connected with the compensation mechanism of the corresponding base film conveying device. After the first Hengfeng shop ironing mechanism described, a first cooling mechanism is set up. A second cooling mechanism will be set up after Zongfeng's enthusiastic mechanism. A third cooling mechanism is also installed after the transverse peak passion mechanism.

The work flow of the four-sided bag production line is input from the feeder mechanism of the side film conveyor: the side film, and then into the forming mechanism. After this molding mechanism makes the side film cylindrical, both sides of the side film are turned inward. The shape when compressed with a nail pin is flat, the flat side film is turned over by the first hemming mechanism, and then transferred to the first pulling device. After pulling, the first pulling mechanism sends the side film to the point. The base film enters the production line from the storage rack, and then enters the slide mechanism through the tension rack, the second traction mechanism and the photoelectric detection mechanism. The pulling device of the sliding mechanism is connected to the point separation mechanism of the side film transport device. Pulling the broken side film, the lateral stacking side film spare parts spacing, in the photoelectric detection mechanism of the base film, the length of the side film spare parts is less than the base film. The side film spare parts are aligned with one side of the base film. On the base film, the side that is covered with the side film preparation is used to make the back surface of the square bag, and the other side is used to make the bottom of the quadruple bag. Then, the two edges of the base film and the side film spare parts directly contacting with the base film are sealed together by the ironing device of the sliding table, and then, the compensation mechanism performs position compensation on the base film with the side film spare parts.

The above is the production method of the four-sided bag, if you need to know more, you can contact us at any time!