600C+ High-speed multi-function sealing bag making machine

The complete bag making process and key control points of 600C+ High-speed multi-function sealing bag making machine

1. Raw material preparation and pretreatment

The first step in bag making is raw material preparation. 600C+ High-speed multi-function sealing bag making machine is suitable for a variety of packaging materials, including various types of plastic films, composite films, etc. Under Huitong Packaging Machinery's strict quality control system, each batch of raw materials must undergo strict inspection before entering the production link. The inspection content covers a number of indicators such as raw material thickness, tensile strength, transparency, and heat sealing performance to ensure that the raw materials meet production standards and customer needs. ​
The raw material pretreatment link is also critical. The first is the unwinding operation of the raw material. The unwinding device needs to maintain stable tension control to avoid film relaxation or excessive tension, otherwise it will affect the accuracy and quality of subsequent bag making. At the same time, in order to remove dust and impurities that may exist on the surface of the raw material, electrostatic dust removal or brush cleaning is usually used to clean the surface to ensure the cleanliness of the raw material and lay a good foundation for subsequent bag making. The key control point of this step is the precise tension adjustment and thorough cleaning effect. Only in this way can the bag defects caused by raw material problems be avoided. ​
2. Printing and pattern processing
If the bag needs to print patterns or texts, the 600C+ High-speed multi-function sealing bag making machine can be linked with the printing equipment. Huitong Packaging Machinery, relying on its technical accumulation in the field of packaging machinery, can achieve efficient connection between printing and bag making. In the printing process, the key control point lies in the registration accuracy of the printed pattern and the ink adhesion effect. Through the advanced photoelectric tracking system, the equipment can monitor and adjust the printing position in real time to ensure that the pattern is accurately printed on the film. At the same time, the selection of ink and the setting of printing process parameters directly affect the clarity and durability of the pattern. For example, for pet food packaging, it is necessary to use ink that meets food-grade safety standards, and it is necessary to ensure that the ink is firmly attached to the surface of the film and is not easy to fade or fall off. ​
In addition, under some special needs, pattern processing techniques such as hot stamping and laminating may also be involved. These processes also require strict control of parameters such as temperature, pressure and speed to achieve ideal processing effects. Huitong Packaging Machinery arranges professional technicians to control quality in each process to ensure that the final pattern processing quality meets customer expectations. ​
3. Film forming and center sealing treatment​
The pre-treated and printed film enters the forming stage. The 600C + high-speed multi-functional center sealing bag making machine processes the flat film into the required bag shape through a specific forming mechanism. In this process, the mechanical accuracy and motion stability of the equipment are crucial. The design and manufacturing accuracy of the forming mold directly determine the regularity and dimensional accuracy of the bag shape. The key control points are the temperature control of the mold and the adjustment of the forming pressure. The appropriate temperature and pressure can make the film better fit the mold shape during the forming process to avoid wrinkles, deformation and other problems. ​
The center sealing treatment is one of the core processes of this bag making machine. The equipment heats the middle part of the film through the heating element to make it reach a molten state, and then applies pressure through the laminating roller to firmly seal the two sides of the film together. The quality of the center seal directly affects the sealing and strength of the bag. The key control points include the uniformity of the heating temperature, the stability of the laminating pressure, and the precise control of the laminating time. If the heating temperature is too high or too low, it will cause the seal to be loose or the film to melt excessively; if the pressing pressure is unstable, the thickness of the sealing part may be uneven, affecting the performance of the bag. Huitong Packaging Machinery continues to innovate in the middle sealing technology, using advanced temperature control systems and pressure sensing devices to ensure stable and reliable middle sealing quality. ​
Fourth, bag mouth treatment and cutting ​
Bag mouth treatment is an important step to ensure the convenience and sealing of the bag. For different types of packaging needs, the bag mouth treatment method is also different. For example, for clothing packaging bags, hot or cold cutting may be required, and sealing devices such as zippers and self-adhesive strips may be added as needed. In the bag mouth treatment process, the key control points are the accuracy of the cutting size and the installation quality of the sealing device. Inaccurate cutting size will result in different sizes of bags, affecting the packaging effect; loose installation of the sealing device will reduce the sealing and use experience of the bag. ​
After completing the bag mouth treatment, enter the final cutting process. The 600C+ high-speed multi-function center-seal bag making machine is equipped with a high-precision cutting tool that can quickly and accurately cut continuous film into individual bags according to the preset size. The key control points in the cutting process are the accuracy of the cutting position and the sharpness of the tool. Through the photoelectric sensing system, the machine can accurately identify the cutting mark to ensure that the size of each bag is consistent. At the same time, the tool is regularly maintained and replaced to ensure that the cutting edge is neat and burr-free, improving the overall quality of the bag.