China Center Sealing Bag Making Machine

WZFBD-400T Computer Control High-speed Full-automatic Mid-sealed Bag-making Machine
The Series Bag Making Machine is designed for sealable multi-layer materials or co-extrusion films such as laminates of Polyester, BOPP, and CPP...This machine is ideal for the production of center seal bag, side gusset bag, four side sealing bag, etc.
Main Mechanism
Main drive servo motor: Providing the constant sealing time even cutting speed varied. This mechanism reduces the lost of material greatly.
Two feeding servo motor: The bag length is accurately controlled by servo motor upgrading production speed.
Outer transmission mechanism: Compared with inner transmission mechanism, the structure of brand-new outer transmission mechanism is much simple and eases to maintenance.
Two side gusseting methods: Unwind gusseting device and middle gusseting unit using depends on the material characteristics.
Bag Making Machine Capability
One machine can produce various bags such as center seal bag, side gusset bag, four side seal bag...
Unwind Section
Horizontal unwind stand and 3" air shaft. Single operator is required to load the parent roll.
Unwind gusseting device: only 3 pieces of mold plate are required to produce whole depth of gusseting.
Equipped with web guiding system (edge) which assured the accuracy of gusseting and sealing position.
The constant unwind tension is achieved by using tension auto controller (diameter calculating type) and magnetic powder brake.
Equipped with material running out alarm device to prevent the effect of material broke.
Pulling Stand And Micro Location Offset Tension Control System
The movement of new dancing roller unit is controlled by two separate air pressure cylinders. According to the setting value, the system will detect and adjust the tension via change the feeding length of servo motor automatically. It is designed to provide the most stable tension during bag making machine running.
Center Sealing Section
The latest development of center sealer auto descending device which can prevent the material been overheated or broken when machine stop.
Equipped with middle gusset forming unit, gusset heater and gusset cooler.
Bottom Sealing Section
Bottom sealer *3 and bottom cooler *1, each sealing position can be pressed twice with different temperatures. It improves the sealing quality and upgrades the production speed.
Bottom sealer auto ascending device which can prevent the material been overheated or broken when machine stopped. (Patent No. 42360)
Each bottom sealing unit can replace embossing plate with silicon plate; The operator can change the sealing arrangement for actual demand.
Temperature Control System
Microprocessor PID temperature controllers work with SSR (solid state relay). The system can process once communication control in 2 seconds which provides the most accurate and fastest heating performance.
Temperature upper and lower limit alarm: The operator can alter the range of limit and auto stop function.
Cutter
Newest cutter unit with easy adjustment and durable structure. The cutter unit can adjust the position from single side or whole unit moves front and rear.
The machine employs a contrast scanner combined with a servo system for accurate positioning. It not only eliminates repetitive error on sealing position but also provides high cutting accuracy.
Main Technical Parameters
Width: Even bag600-400mm, put the side bag 60-360mm
Max length: 600mm(with double seeding)
Speed: 150section/min
Power: 30kw three-phase four-wire
Overall size: 9600*1500*1700mm
Weight: about 3700kg