Medium-sealing valve-adding bag-making machine

Abstract

The invention discloses a medium-sealing valve-adding bag-making machine. The medium-sealing valve-adding bag-making machine sequentially comprises a feeding frame device, a valve adding device, a folding forming device, a longitudinal sealing device, a transverse sealing device, a second traction group and a cutter device in the moving direction of films, wherein the feeding frame device is used for continually and stably providing the films for follow-up procedures; the valve adding device is used for additionally mounting one-way ventilation valves in set positions on the films; the folding forming device is used for continuous folding forming of the valve-added films, and can fold the films on two sides to the middle and overlap the films in the middle positions; the longitudinal sealing device is used for longitudinal heat-sealing of the folded films at the overlapping parts; the transverse sealing device is used for transverse heat-sealing of the folded films which are processed by the longitudinal sealing device; the second traction group is used for providing power for movement of the films; the cutter device is used for cutting the well processed films to form end products. The medium-sealing valve-adding bag-making machine can be obtained by modifying a traditional medium-sealing bag making machine, thereby having extremely high economic benefits; the medium-sealing valve-adding bag-making machine is compact in structure, reasonable in technological layout and stable and reliable in production process and greatly lowers the manufacturing cost.

Description

technical field [0001] The invention relates to a bag-making machine with a middle seal and a valve. Background technique [0002] Bags with one-way breathable valve are widely used in coffee packaging, which are mainly reflected in the packaging forms such as middle-sealed and valved bags, middle-sealed organ and valve bags, four-sides-sealed organ and valve bags and other bag types. In the existing bag-making methods for valved bags of this kind of structure, the bag is generally made first, and then the vent valve is manually heat-sealed, which increases the transfer process, increases labor costs and time costs, and reduces bag-making efficiency. Therefore, the present invention provides a center-sealed bag-making machine with an online valve adding device, which can be equipped with a one-way air-ventilating valve while making bags, has high production efficiency, reliable quality, and reduces production costs. Contents of the invention [0003] In order to solve the...

AI Technical Summary

Problems solved by technology

In the existing bag-making methods for valved bags of this kind of structure, the bags are generally made first, and then the breathable valve is manually heat-sealed, which increases the transfer process, increases labor costs and time costs, and reduces bag-making efficiency.

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