Working principle of vertical packaging machine
For vertical packaging, it is suitable for liquids, powders and granules with good fluidity. It mainly depends on its own gravity and can be completed with a certain mechanical effect when necessary. Moreover, vertical packaging machines generally have two types of packaging. Function, that is, cutting with cursor and fixed-length cutting. The two cutting functions are convenient to switch. Which packaging method is used when the machine is running depends on the packaging film. The packaging film is generally divided into packaging with and without a cursor and without a cursor. The film is cut with a fixed length, otherwise it is cut with a cursor. For pillow packaging, it is mainly suitable for single-piece or combination packaging with a regular shape and sufficient rigidity.
Vertical packaging machine is a bag made of roll-shaped flexible packaging material, filled with materials, and then sealed. The three functions are automatically and continuously completed. Its working principle is: a roll film placed on a supporting device is wound around a guide stick group and a tensioning device, and the position of the logo pattern on the packaging material is detected by a photoelectric detection control device, and then rolled into a film cylinder by a lapel shaper Wrap the surface of the filling tube. Firstly, a longitudinal heat sealer is used to longitudinally heat seal the film at the interface portion rolled into a cylinder to obtain a sealed tube, and then the cylindrical film is moved to the place of the horizontal heat sealer to be horizontally sealed to form a packaging bag tube. The metering device fills the metered items into the packaging bag through the upper filling tube, and then heat-seals by a transverse heat sealer and cuts it in the middle to form a packaging bag unit and simultaneously forms the bottom seal of the next tube bag.
The vertical sealing shaft (also the film feeding shaft) of the vertical packaging machine is used as the system main shaft. Horizontal sealing, scribing, cutting and other 3 axes follow the main axis. The horizontal sealing, scribing, and cutting servo controller directly captures the film position color mark signal for position detection. After the film is formed by the molder, it becomes a tube film and performs longitudinal Heat sealing, the packaging film moves downward, and the horizontal sealing axis moves. At the same time, the material is sent into the tube film, and continues to move downward. When the next cursor signal comes in, the horizontal sealing axis moves again. Such a pack of three heat seals When the packaging film continues to move downward, the color mark sensor detects the color mark, the driver moves after receiving the signal from the color mark sensor, and draws a zigzag cut at the cursor. The scribe operation is completed. When the machine (PLC) count reaches 5, it sends a signal to the cutting axis servo, so that the cutting axis servo can receive the signal of the color mark sensor. In this way, the signal of the color mark sensor receives the servo action of the cutting axis after the signal is received. carry out.
