JPS6159997B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a liquid supply device in a reverse pressure type liquid filling machine.

In conventional counter-pressure liquid filling machines, the filling liquid in the rotating filling liquid ball is pushed in the radial direction by centrifugal force, making it difficult to distribute the filling liquid to the filling section.
In the filling section, the liquid level is lower than in other sections, and the head pressure fluctuates during filling, making it difficult to obtain accurate flavoring. In addition, it is easy to foam due to liquid level waves, and the liquid level control device operates frequently. However, the supply pump starts and stops frequently, making it difficult to maintain a constant pressure inside the filling liquid ball.Also, since the filling valve protrudes into the filling liquid ball, the filling liquid immediately follows when it rotates or stops. There is also a defect that the filling liquid is agitated, causing turbulent flow and making it easy to foam.

In addition, air mixed in the exhaust gas from the container enters the upper space of the filling liquid ball and is absorbed into the filling liquid, which is particularly undesirable when the liquid is easily oxidized such as beer.

In order to improve these deficiencies, filling liquid valves are attached to the outer surface of the filling liquid ball, and filling liquid is distributed from a distributor to each filling valve. Although it has become possible to reduce the agitation of the filled liquid caused by the protrusion inside the liquid ball, the return gas containing the atmosphere from the container enters the space of the filled liquid ball or the distributor, which causes air absorption. At present, the sanitary problems caused by the introduction of fresh air and outside air still remain unsolved.

The present invention has been made to improve these deficiencies by separating the upper part of a rotating distributor, which is connected to the liquid layer of a fixed filling liquid tank and is filled with filling liquid, from the filling liquid tank. It connects to the side of a separately rotatable fill valve and connects the top end of the fill valve to a rotatable top counter channel having an exhaust valve, and the top counter channel is connected to the fill tank. The gist is that it is connected to the tank counterpressure chamber formed at the top.

An embodiment of the present invention will be described with reference to the drawings. A rotary disk 2 having a filling valve 1 fixed on its circumference is provided with an annular distributor 3 in its center that can be filled with filling liquid. A substantially central portion of the filling valve 1 is connected to the filling valve 1 through a conduit 4 .

Further, a valve base 6 having a seal member 5 on the lower end surface is fixed to the lower part of the filling valve 1, and a valve stem 9 having a flow valve 7 and a sprayer 8 at the lower part is attached to a support ring 10 at the center of the filling valve 1. It is supported by an umbrella-shaped stopper 11 so as to be vertically movable.

A snift hole 12 and a pressurized gas introduction hole 1 are provided on the side of the valve base 6 in the lower part of the flow valve 7.
3, the snift hole 12 is connected to an annular snift channel 16 at the center of the rotating disk via a sniff valve 14 and a conduit 15, and the pressurized gas introduction hole 13 is connected to a pre-counter valve 17 and a conduit 15. 18 to the annular pre-counter channel 19 at the center of the rotating disk.
is connected to.

Further, a vent valve 21 is fitted into the upper part of the vent passage 20 extending through the center of the valve stem 9 so as to be openable and closable. A flow valve seal spring 25 is fitted into the cap member 23 and urged downward by a spring 24, and is stretched between the pull-down cap member 23 and the valve stem 9 to urge the valve stem 9 downward. The valve stem 9 is further provided with the flow valve seal spring 2 that urges the valve stem 9 upward.
A valve spring 26 weaker than 5 is tensioned.

A Y-shaped lever 28 provided on a lever shaft 27 pivotally supported on the upper part of the filling valve 1 is engaged with the upper end engaging portion 22 of the pull-down cap member 23, and an outer lever 28 provided on the outer end of the lever shaft 27 is engaged. Lever 2
The upper end of the filling valve 1 is connected by a conduit 30 to an annular top counter channel 31 above the center of the rotating disc, which is connected to an exhaust valve 32. It is connected to the atmosphere through.

Accordingly, the sniff channel 16, the pre-counter channel 19 and the top counter channel 31 have rotary joints 33,
A snift recovery tank is formed to rotate integrally with the rotating disk 2 via 34 and 35, and the snift channel 16 communicates with the atmosphere outside the filling chamber via a conduit 36, a center cylinder 37, and a conduit 38. 3
9, and the pre-counter channel 19 is connected via a conduit 40, an upper central tube 41 and a conduit 42 to a counterpressure supply device, not shown.

The distributor 3 also includes a lower central pipe 45 at the lower part of a fixed filling liquid tank 44 which forms a tank counter pressure chamber 43 in the upper part and is controlled so that the liquid level is located higher than the distributor. The tank counterpressure chamber 43 of the fill liquid tank 44 is connected via a conduit 46 and the tank counterpressure chamber 43 of the fill liquid tank 44 is connected to the top counter channel 31 via a conduit 47, an upper center tube 48 and a conduit 49, room 4
3 and the conduit 42 are connected by a conduit 53 having a pressure reducing valve 50, a check valve 51, and a counter air supply valve 52.

The snift valve 14, the pre-counter valve 17, and the outer lever 29 are all operated by cams (not shown).

Since the embodiment of the present invention is constructed as described above, when the container to be filled comes into contact with the sealing member 5 and is sealed, the pre-counter valve 17 is first opened and a pressure higher than the pressure in the tank counterpressure chamber 43 is applied. At the same time that the pressurized gas is supplied into the container, the sniff valve 14 is also opened, and the air in the container is exhausted to the atmosphere from the recovery tank 39 outside the filling chamber through the sniff channel 16 to perform pre-gassing, and then the pre-counter valve 17 and the sniff valve are opened. 14 closes.

Next, the pre-counter valve 17 is activated and opened again to supply pressurized gas into the container, and then the outer lever 29 is activated and the Y-shaped lever 28 pulls up the pull-down cap member 23 and opens the pent valve 21, which increases the pressure inside the container. Gas flows from the vent passage 20 to above the filling valve 1, and above the filling valve 1 is the tank counterpressure chamber 4 of the filling liquid tank 41.
3, the inside of the container instantly becomes at the same pressure as the filling liquid tank 44.

Next, the flow valve 7 is opened by the valve stem 9 being pulled upward by the spring 26 to start filling the container, and the exhaust valve 32 is opened.
is opened, and as the filling liquid flows down, the pressurized gas in the container is discharged from the vent passage 20, through the conduit 30, the top counter channel 31, and the exhaust valve 32.

However, at this point, the flow valve seal spring 25 is held in a free state.

In this way, the filling liquid is filled into the container, and the liquid level rises and reaches approximately the lower surface of the vent tip 9' at the lower end of the valve stem 9, forming a seasoning line. Filling stops when a predetermined liquid level is reached.

Then, the outer lever 29 lowers the pull-down cap member 23, and only the flow valve 7 is closed by the flow valve seal spring 25. Then, the pre-counter valve 17 is activated again and opens, allowing pressurized gas from the pre-counter channel 16 to fill the container. After pressurizing the vent tip 9' and pushing the excess liquid from the upper part of the container through the vent passage 20 and back to the upper part of the filling valve 1, the pre-counter valve 17 is closed and the vent valve 21 is also closed.Finally, the sniff valve 14 is activated to open the container. is released to the atmosphere via the snift channel 16 and the sniff recovery tank 39 to complete the filling operation and the container is separated from the sealing member 5.

The present invention is a counter-pressure type liquid filling machine in which one side of a rotating filling valve provided independently of a fixed filling liquid tank is filled with filling liquid, and the upper part of a distributor connected to the filling liquid tank is connected to the filling liquid. At the same time, the upper end of the filling valve is connected to a top counter channel having an exhaust valve, and the top counter channel is connected to a tank pressure chamber formed in the upper part of the filling liquid tank. Alternatively, there is a space above the liquid in the distributor, which prevents the filled liquid from being stirred by centrifugal force and foaming, and especially air mixed into the pressurized gas from the container is removed from the top counter channel. It is treated with a valve to prevent it from being absorbed into the filling liquid, and even if there is a small amount of mixed gas in the filling liquid, it will not accumulate in the distributor, allowing filling operations to be carried out without degrading the quality of the filling liquid. It has excellent features that can be done.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway front view of an embodiment of the present invention, and FIG.
The figure is a longitudinal sectional front view of the main part. 1...Filling valve, 3...Distributor, 3
1...Top counter channel, 32...Exhaust valve, 43...Tank counter pressure chamber,
44... Filling liquid tank.

Claims (1)

[Claims] 1. Connect the upper part of a rotating distributor connected to the liquid layer of a fixed filling liquid tank and filled with filling liquid to the side of a rotating filling valve that is provided separately from the filling liquid tank. and the upper end of the filling valve was connected to a rotating top counter channel having an exhaust valve, and the top counter channel was further connected to a tank counter pressure chamber formed at the top of the filling liquid tank. Liquid supply device for back pressure liquid filling machine.