JPS5855080B2 - Liquid filling valve - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in valves for filling liquids.

A flow valve is installed on the upper part of the cylindrical spreader fixed to the filling valve, and the conical liquid flow passage formed between the two is opened and closed to allow the liquid in the tank to flow down and fill the container. The filling valve has the advantage of being able to form a large discharge port diameter and allowing smooth flow of liquid to fill.
Since the exhaust hole is located at the center of the spreader, when filling a container with liquid or a mixed liquid containing particles, particles such as fruit particles may enter the exhaust hole due to the flow of the filling liquid. There is a defect that causes clogging.

This conical liquid flow path is opened at a position opposite to this upward flow so that the liquid filled in the form of a conical thin film flows down from the inner wall of the container to the center of the bottom and then rises to the center of the container. This is caused by particles such as fruit grains entering the exhaust holes.

The present invention is designed to easily and reliably prevent clogging of the exhaust hole due to fruit particles, etc. in a liquid filling valve using such a conical spreader, and also to improve filling accuracy and prevent liquid from dripping. It is.

The details of the present invention will be explained with reference to the drawings of the embodiments. A valve cylinder 2 protrudingly fixed to the lower part of a tank 1 containing liquid.
A fixed shaft 4 with a conical spreader 3 formed at its lower end is fixed to the center of the shaft so that its substantially lower half protrudes from the valve cylinder 2, and a flow valve 5 is guided on the four sides of the valve cylinder 2. The flow valve 5 is fitted to be vertically slidable via a ring 6, and elastically biased downward by a spring 7 provided in the valve cylinder 2, so that the flow valve 5 can be opened and closed between it and the conical spreader 3. It forms a flexible conical liquid flow path.

In addition, an exhaust hole 8 is provided on the peripheral side of the flow valve 5, which is an eccentric part.
The upper end of the exhaust hole 8 communicates with the gas phase part of the tank 1 via the exhaust pipe 9, and the lower end opens into the lower opening of the flow valve 5, and is located below the opening. A branch piece 10 having a substantially triangular cross section is provided protruding from the lower end surface of the flow valve 5 .

On the outside of the flow valve 5, there is a spring 1 that normally closes the opening of the exhaust hole 8 and is stretched between it and the valve cylinder 2.
An exhaust valve 12, which is urged downward at step 1, is fitted so as to be slidable up and down, and a container sealing member 13 that abuts the mouth edge of the container A is fixed to the lower part of the exhaust valve 12.

In the figure, 14 is a seal ring provided on the conical spreader 3, and 15 is a lid for raising and lowering the container A.

Since the embodiment of the present invention is constructed as described above, the container A
As the lifter 15 rises, its mouth edge comes into contact with the container sealing member 13 to seal the container A, and then rises further to lift the exhaust valve 12 against the spring 11 to open the exhaust hole 8 and simultaneously close the container. The tip of the filling valve enters into A and pressurizes the inside of container A, so the liquid remaining in the exhaust hole 8 from the previous filling operation is exhausted into the tank 1 via the exhaust pipe 9, leaving both the container A and the tank 1 atmosphere. An exhaust passage is formed between it and the phase part.

Next, when the container A rises further and the upper end of the exhaust valve 12 collides with the guide ring 6 and pushes it up against the spring 7, the lower end of the flow valve 5 becomes a conical spreader.
3, the liquid in the tank 1 is diffused into a thin conical shape and filled into the container A-4, and the filling liquid is regulated at the upper end of the opening of the exhaust hole 8. Exhaust hole 8
The air in the container A rises to the exhaust pipe 9 and is filled until the liquid level matches the liquid level in the tank 1.
0 breaks the conical thin film to form an air vent B to an exhaust hole 8.
, is discharged to the gas phase portion of the tank 1 through the exhaust pipe 9, and the filling operation is stopped.

When the filling operation is completed in this way, the container A6 starts to be lowered by the lifter 15, first the flow valve 5 closes the conical liquid flow path between it and the conical spreader 3, and then the exhaust valve 12 closes the exhaust hole. 8 is closed, and at the same time, the lower end of the valve is pulled out from the container A, causing a negative pressure in the container A. Part of the liquid in the exhaust hole 8 and the exhaust pipe 9 is sucked into the human flesh of the container. It descends and separates from the container sealing member 13, completing the filling process.

FIG. 3 shows an embodiment of a liquid filling valve in which the container sealing member 13 is fixed to the flow valve 5 and the container person collides with the container sealing member 13 to directly raise the flow valve 5, and the eccentricity of the flow valve 5 is The lower end opening of the ventilation hole 8 provided at the position is kept open at all times.

Note that the opening of the exhaust hole 8 and the branch piece 1 in these embodiments
Position 0 is installed above and below the same side of the flow valve 5,
Further, it is preferable that the opening of the exhaust hole 8 in the rotary filling machine be provided on the rotating shaft side, and furthermore, the exhaust hole 8 and the branch piece 10
It is also possible to provide multiple numbers.

The present invention relates to a liquid filling method using a conventional conical spreader, in particular, by providing an exhaust hole in a flow valve, opening the lower end of the exhaust hole to the lower peripheral side, and branching pieces that form a vent in the falling liquid film at the lower end of the flow valve. Since the opening of the exhaust hole is provided protrudingly, the opening of the exhaust hole is not opposed to the flow direction of the filling liquid, which descends inside the container along the solid wall, passes from the bottom through the center, and rises through the center, and is not opposed to the flow direction of the filling liquid, which is caused by the downward flow direction of the filling liquid. The branch piece is located on the side and reliably prevents particles such as fruit particles inside the container from entering the exhaust hole and causing clogging, while the branch piece has a thin conical shape and is a liquid film part that flows down into the container. By forming a ventilation portion in the container, the inside of the container can be reliably evacuated and the filling action of liquid containing particles such as fruit grains can be easily and efficiently carried out.

Further, the present invention allows the exhaust hole opening to be opened and closed by an exhaust valve having a container sealing member by utilizing the lifting action of the container, so that the pressure inside the container can be automatically increased or decreased during or after filling. Therefore, compared to the conventional JP-A-48-63884 and JP-A-5334845, in which a pressure fluctuation chamber is formed with a fluid closing valve in the filling valve, the degassing chamber is With an extremely simple configuration that does not require a complicated configuration, the liquid in the exhaust hole can be automatically and easily removed or suctioned, improving filling accuracy and ensuring that there is no contamination caused by liquid dripping. It has an excellent feature that can prevent

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view of the present invention, Fig. 2 is a bottom view of the same, and Fig. 3 is a longitudinal sectional front view of the present invention.
The figure is a longitudinal sectional front view of another embodiment of the present invention. 1...Tank, 2...Filling valve tube,
3... Conical spreader - 15... Flow valve, 8... Exhaust hole, 10...
Branch piece, 11... Spring, 12-... Exhaust valve, 13... Container sealing member, B...
... Ventilation section.

Claims (1)

[Scope of Claims] 1. A filling valve in which a flow valve is vertically slidably fitted to the top of a conical spreader provided in a filling valve cylinder to form a conical liquid flow path that can be freely opened and closed. A liquid filling valve having an exhaust hole communicating with the flow valve opened at a lower end surface of the flow valve, and a branch piece protruding from the lower end of the flow valve to form a vent in a falling liquid film. 2. In a filling valve in which a flow valve is vertically slidably fitted to the top of a conical spreader provided in a filling valve cylinder to form a conical liquid flow passage that can be opened and closed, an exhaust hole that communicates with the tank gas phase is provided. The lower end of the flow valve is opened at the curved surface, and the lower end of the flow valve is provided with a flow 'p'.
A branch piece that forms a ventilation portion is provided protruding from the 2i pattern, and an exhaust valve that has a container sealing member and is energized by a spring is fitted on the vertical side of the free valve, so that the exhaust hole opening can be freely opened and closed. Liquid filling valve formed in.