The small liquid filling machine is not as easy as imagined. It can't be realized in one pass. It needs to be inflated, pressurized, liquid filled, filled, pressure released, and the remaining liquid is removed. * and the second process is a prerequisite for filling, which is to ensure that the filling can be carried out normally.
* Process: Inflatable isobaric:
When the filling empty bottle rises from the top of the bottle holder, the mouth of the bottle is aligned with the centering cover 16. Then, the bottle 17 is sealed in contact with the bottle, and then the centering cover is pushed up along the lifting guide 18 to continue to rise the convex ram 23 on the side of the top surface of the centering cover, and the pusher 27 is pushed up by the jumping ball 24. Then, the gas valve is straightly lifted by the lift valve fork 30, and the gas in the gas chamber of the material tank is passed through the three grooves on the circumference of the gas valve, and enters the filling bottle through the hole in the center of the filling valve 5 and the return air pipe 19. Inside, thus completing the inflation isobaric pressure.
The second process is to return to the air.
Due to the lifting of the gas valve 1, the downward pressure of the valve sleeve 2 is released. At the same time, the filling valve is filled with gas, which increases the upward pressure of the material valve. Therefore, the spring 4 can stretch and lift the material valve 5 connected to the gas valve sleeve 2, so that the lower valve gasket 22 is raised, and the annular opening of the lower portion of the valve body 9 is separated, and the liquid valve is opened. The liquid in the valve body flows from the outer ring gap at the taper end of the filling valve through the curved hole into the middle ring hole, and flows down the outside of the return pipe 19. Also, due to the middle of the return pipe, a dispersion cover 20 with a rubber pad is placed, which just stops at the bottle neck. Therefore, the inflowing liquid is blocked by the dispersing cover, and can flow along the periphery of the bottle wall to ensure the steady pressure filling, does not cause the liquid to bubble, and the liquid gradually rises in the bottle. The gas in the two bottles is returned from the center of the return pipe through the venting pad 3 at the upper end of the filling valve and the gas valve 1 to the gas chamber on the cylinder. In order to prevent the extension of the spring 4, the valve is blocked. When affecting the filling, the return air has a boss in the middle of the filling valve stem. When the upper hole of the feeding sleeve is blocked, the filling valve can not continuously rise, so that the venting gasket and the gas from the upper end of the filling valve are added. A through hole is maintained between the valves. In the middle of the return air pipe, there is a convex joint under the dispersion cover 10. Used to screw the return pipe into the filling valve and press the switch pad 22 tight. For bottles with different filling heights, replace the air pipes of different lengths. If there is no bottle or bottle when filling, the inner cover will automatically drop due to the rising pressure, and the pressure of the ejector pin and the push rod will be released. At this time, the spring 26 will push the push rod, the air valve and the liquid valve to prevent leakage. .
Small liquid filling machine picture : 
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