I. Bag Making Machine Principle
A bag making machine is a multi-machine linkage, multi-station automated equipment. It can produce various shapes of packaging bags through longitudinal and transverse sealing technologies. The working principle of a bag making machine is: after the roll film processed through printing, compounding, slitting, and cutting processes, under the action of the bag-shaped mold, it is heated, sealed, cut, and rewound into finished bags.
II. Classification of Bag Making Machines
According to different sealing methods, bag making machines can be divided into heat sealing machines and cold cutting machines. According to different bag shapes, bag making machines can also be divided into three-side sealed bags, stand-up pouches, stand-up bags, handle bags, various bags with zippers, etc.
III. Working Process of Bag Making Machine
The working process of a bag making machine generally includes: film unwinding, positioning, printing and compounding, longitudinal slitting, sealing and forming the bag shape, material feeding, heating and sealing, cold cutting, and rewinding. Among them, film unwinding, positioning, printing and compounding, and longitudinal slitting are the key parts of the bag making machine, which directly affect the production efficiency and product quality of the entire equipment.
IV. Common Malfunctions and Repair Methods of Bag Making Machines
During the use of bag making machines, common malfunctions include loose heat sealing, broken lines, and air leakage. Solutions include adjusting the sealing temperature, replacing the cutting knife, and replacing the sealing block.
V. Application Fields of Bag Making Machines
Bag making machines are widely used in the packaging of various food, pharmaceutical, cosmetic, hardware, and electrical components industries. Now, centrifugal packaging bags for non-food products, vacuum suction can inner packaging bags, various water-insoluble household goods, and shoe plastic bags, etc., are all produced by bag making machines.
VI. Future Trends of Bag Making Machines
With the continuous development of the packaging industry, the application of bag making machines is becoming increasingly widespread and diversified. The future trends of bag making machines mainly include higher standardization, intelligent production processes, higher automation levels, and better environmental utilization.