two step plastic bottle infusion production line packing plant

1. Main Technical Parameters

Washing, filling and sealing three stations adopt rotary type. The sealing station uses hot-melt welding to seal cap. The machine uses mechanical hand to catch bottles neck for location and handing-over. Any scrape of bottle or bottom is not allowed.

1,Max capacity:6000 bottles/hour adopt frequency conversion for adjusting speed.

2,Specification: 100-1000ml plastic infusion bottles (BOPP bottle or vertical soft bag) and matching plastic cap (subject to BOPP bottle or vertical soft bag sample provided by buyer)

3,Bottle-air washing number: 30, Water washing number: 30, filling number: 18, Cap-sealing numbers: 30

4,Washing effect: Qualified rate of washing ≥99.8%

5,Metering error: ≤±1%

6,Welding effect: After sealing, the deviation between the position of bottleneck and cap≤0.4mm; cap-sealing pass rate≥99.9%

7,Total power: About 20Kw

8,Gas consumption: 0.6Mpa, about 260 m³ /h

9,Water consumption: Purified water≥0.2MPa, about 0.7 m³ /h

10,Overall dimension: (L×W×H) 4500×2000×2200mm

2. Work principle

Model XGF30/18/30 plastic soft bottle I.V-solution washing, filling and sealing production line is a packing machine contains bottle-washing, filling, and cap-sealing three stations as a whole. Washing, filling and sealing three stations adopt rotary type. The sealing station uses hot-melt welding to seal cap. The machine uses mechanical hand to catch bottles neck for location and handing-over. Any scrape of bottle or bottom is not allowed. This promotes production efficiency and ensures quality.

Technical process: air washing (3shifts)---water washing(2shifts)—dry blowing(1 shift)—filling--sealing

1). Bottle-handing method

Synchronous belt transfers with bottle-blowing manipulator.

2). Bottle air washing part

Bottle-entering station of plastic infusion bottles adopts synchronous belt to convey to mechanical hand in washing station. Connection part of belt is matching the speed of with the bottle-blowing matching, to ensure handing speed is keep up with equipment designing speed. Mechanical hand catches bottles by bottleneck and turn 180°down, making bottleneck facing down for washing. Bottle-washing spray needle is equipped with a negative ion generating device (with failure alarm function). Under the guide of rising cam, the needle inserts into the bottle and seals bottle. Negative ions produced by needle’s top are blown by clean compressed air into the bottle to eliminate electrostatic in the bottle. Meanwhile, it blows the plastic particles that have electrostatic-eliminating and other particles, making them floating in the bottle. The vacuum device at the bottom sucks all particles to sealed tubes, and sends to outdoors. Since the needle inserting the bottle, it tracks the plastic for synchronized motion until it leaves bottles. This ensures enough time for washing. After spray needle leaving the bottle, mechanical hand will turn plastic bottle 180°to make the bottle facing up and send it to the filling station.

3) Water washing station

After the air washing, Mechanical hand catches bottles by bottleneck and turn 180°down, making bottleneck facing down for washing. Bottle-washing spray needle is equipped for washing, after washing, there are bottle blowing drying station, ensures inside and outside of the bottles without any water drop.

4). Filling station

Plastic bottles that have been water washed are conveyed to filling station by mechanical hand. Filling nozzle of filling station will trace plastic bottles for filling. The upper part of filling station is equipped with a constant-pressure liquid balance tank. The liquid pipes from workshop dilution tank are made up of inflow pipe and back-flow pipe. The inflow pipe, through the pneumatic valves at the top of constant pressure balance tank, flows into the tank. When the liquid fills the balance tank and reaches the setting surface, inflow pneumatic valves will close, and the liquid will flow to tank through back-flow pipe. When the pressure inside tank is lower than the setting pressure, the control device will send orders to the pneumatic valve which at the top of tank, and make it open automatically. The pressure (surface) of constant pressure tank is stable, which ensures the effective operation of filling process.

Filling meter is controlled by the opening time of every pneumatic clamp valve which at the top of filling head. The opening time of every pneumatic clamp valve can be set separately. The pressure is constant, the filling time is set, which makes the metering control uniform. When photoelectric sensor at the under part finds bottles, the pneumatic clamp valve will open, and run meter filling by time-control. If there is no bottle under filling head, the pneumatic clamp valve at the top of spray pipe will close, and cut off the liquid. This realizes function of no bottle, no filling.

Pneumatic control of filling station adopts advanced FESTO valve field-bus technology.  The valve and electric conduction link are placed in the machine base. The property is advanced and reliable, waterproof and durable, which is easy to disassemble and maintenance

5).Cap-sealing station

This station is mainly used to weld-sealing the cap of plastic infusion bottle after filling during production. It adopts double heating plate to finish cap’s weld-sealing in non-contact hot-melt type.

After bottles are filled, they pass through bottle-discharging station, connecting part, welding cap bottle-handing station, and finally reach cap-sealing station. The mechanical hand will take the bottleneck. Meanwhile, the caps will be collected by cap-handing hopper and delivered to cap-convey track. When the photoelectric switch at bottle-handing station finds the bottle, the cap-blocking air cylinder at the end of convey track will stretch out. The caps then enter cap-removing station. The cap-poking tray will pull out caps. When the caps enter connecting part, cap-removing heads take caps following the cam down curve. Cap-blocking air cylinder and the pushing air cylinder of heating station stretch out at the same time. Heating station heats the cap sealing surface and bottleneck surface together until the both melt soupy. Then the cap-removing head will press and melt cap and bottleneck together following the cam down curve. Before pressing, according to actual production requirements, exhausting station can be adapted to drain certain amount of air in the bottle to conduct pressing and welding, which ensures the quality of follow processes. After that, the cap-removing head separate following the cam up curve. The bottles after sealing are delivered to bottle-discharging track through bottle-discharging station, and enter next process.