JPS6031713B2 - Gravity liquid filling valve - Google Patents

Description

[Detailed description of the invention] The present invention relates to improvements in liquid fill valves.

In a gravity flow liquid filling valve, when filling a filling container with solids such as fruit pulp, or when filling a mixed liquid of these, these solids may flow back from the filling valve. It is known to provide a screen at the bottom of the filling valve to prevent this from occurring.

However, with this type of system in which a screen is provided at the bottom of the filling valve, the filling liquid comes into contact with the screen frequently, and solid matter such as fruit particles and pulp easily adheres to the screen, which obstructs the exhaust action and reduces filling accuracy, and requires frequent cleaning. There are defects such as having to be done.

The present invention aims to improve these deficiencies by providing a flow valve that can be opened and closed at the bottom of the liquid storage tank.
An exhaust pipe that opens to the gas phase in the liquid storage tank is attached to the flow valve, and a porous screen such as a mesh plate is removably installed at the upper end of the exhaust pipe to prevent the backflow of solids. This is a summary.

An embodiment of the present invention will be described with reference to the drawings.A filling cylinder 2 fixed to the lower part of an annular liquid storage tank 2 has an engaging portion 3.
and was energized downward by spring 4.

- The upper part of the valve 5 is iron-bonded, and a conical spreader 7 is attached to the lower end of the rut 6 which is fixed to the center of the filling cylinder 2.
is formed integrally with the flow valve 5 on its upper circumferential surface.
A fan-shaped branch piece 8 is fixed to one side of the lower part of the punch 6 so as to block a part of the annular flow passage a formed in the flow valve 5. Further, an exhaust valve 11 is mounted outside the lower part of the flow valve 5, and has a locking part 9 that can be freely engaged with the engaging part 3, and a container seal pad 10 at the lower end. It is biased downward by a spring 12 screwed onto the cylinder 2, and its lower end is supported by the lower peripheral green part of the spreader 7.

A liquid storage tank 1 is located at the upper end of the circumferential portion of the flow valve 5 located outside the fan-shaped branch piece 8 provided in the shaft village 6.
An exhaust pipe 13 is provided in the gas phase portion of the flow valve 5, and the lower end thereof opens into the spreader support portion, respectively, and the lower end of the flow valve 5 is cut obliquely so that the impact portion of the spreader 7 is disposed between the exhaust valve 11 and the spreader 7. An annular gap b having a triangular cross section is formed, and a notch 14 is provided at a position of the spreader 7 facing the exhaust pipe 13 to fit into the annular gap b.

Further, a screen 15 made of silk plate or the like is detachably provided at the upper end of the exhaust pipe 13 to prevent backflow of solids. Note that in the figure, A is a filling container, and 16 is a sealing member. Since the embodiment of the present invention is constructed as described above, when the filled container A lifted up by a lifter (not shown) collides with the container seal pad 9 and causes the exhaust valve 11 to rise while compressing the spring 12, the The stopper part 9 collides with the engaging part 3 of the flow valve 5 and moves the flow valve 5 upward, and the part of the lower end that collides with the spreader 7 separates upward from the spreader 7 and closes the liquid storage tank 1. The liquid inside passes through the annular flow path a, forms a film on the conical surface of the spreader 7, and flows down into the filling container A, and a part of this flowing film is separated by a fan-shaped branching piece 8. A vent is formed in the falling film, and the air in the filling container A is exhausted from this vent through the annular gap b to the gas phase of the liquid storage tank 1 through the exhaust pipe 13, and then the filled liquid is exhausted. The liquid rises into the pipe 13 and is filled until the liquid level in the liquid storage tank 1 matches the level.

At this time, the screen 15 prevents solid matter such as fruit pulp in the liquid rising through the exhaust pipe 13 from flowing back into the liquid storage tank.

When filling is completed in this way, the filling container A begins to descend and as the exhaust valve 11 descends, the flow valve 5 descends and is supported by the blender 7, and then the liquid in the exhaust pipe 13 also falls into the filling container A. The filling action is now complete.

In the above embodiment, the exhaust pipe is provided in the center of the filling cylinder, but it can also be provided in the center of the bag.

In the present invention, since a screen such as a mesh plate is removably installed at the upper end of the exhaust pipe of the filling valve, it is possible to reliably prevent solids such as fruit particles and pulp from flowing back into the liquid storage tank during filling. In particular, since the installation location is in a place where there is little contact with the filling liquid, clogging due to adhesion of solid matter such as fruit grains and pulp can be prevented as much as possible, and the exhaust action can be performed smoothly and reliably to improve filling accuracy. It also has an excellent feature that it is not necessary to clean the screen as often as before.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of an embodiment of the present invention, and FIG. 2 is a sectional plan view thereof. 1...) liquid storage tank, 5... ...Flobalf 13...Exhaust pipe, 15...Screen. Figure 2 Figure 1

Claims (1)

[Claims] 1. A flow valve that can be opened and closed is provided at the bottom of the liquid storage tank, an exhaust pipe that opens to the gas phase inside the liquid storage tank is attached to the flow valve, and a mesh plate is installed at the upper end of the exhaust pipe to prevent solids from flowing back. A gravity flow liquid filling valve with a removable porous screen.