JPH04327185A - Filling valve - Google Patents

Abstract

PURPOSE:To easily change the amount of liquid supplied into a liquid storage tank and facilitate the blanking operation of the tank by providing a valve body, a liquid supply pipe, a gas vent pipe, a valve, an opening and closing lever, an outer cylinder, a centering bell and an elastic body and raising the outer cylinder by the opening and closing lever to open an outlet hole of a liquid supply pipe. CONSTITUTION:When an air cylinder 50 moves upward, a neck part of a container 20 is pressed into contact with a packing 16 and an elastic body 45 is compressed to seal the neck part. During this time, an opening and closing lever 40 is moved upward to raise a liquid supply pipe 10 higher than an end tip 9 in order to make both a liquid inlet hole 25 and a gas vent hole 4 open. The liquid is sent from a liquid storage tank 22 through an inlet opening 28, a liquid supply pipe 10 and a liquid entrance opening 25 into the container 20. At this time, the air in the container 20 is discharged through the gas vent hole 4 and a gas vent pipe 7 into a gas layer A1 of the liquid storage tank 22 and the liquid closes the gas vent hole 4 to stop the liquid filling. In other words, the amount of liquid supplied is determined by the position of the gas vent hole 4.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling valve used in bottling machines, canning machines, etc.

0002

2. Description of the Related Art A conventional filling valve will be explained with reference to FIGS. 4 and 5. 1 is a cylindrical valve body hanging from the liquid storage tank 22; 5 is an outer cylinder fitted around the outer periphery of the valve body 1 so as to be movable in the vertical direction; and 6 is attached to the upper end of the outer cylinder 5. 8 is a centering bell attached to the lower end of the outer cylinder 5; 2 is an inner cylinder attached to the lower part of the valve body 1 so as to be movable in the vertical direction; 14 is the inner cylinder. 2 is a spring that biases downward; 10 is a liquid supply pipe attached to the lower part of the inner cylinder 2; 7 is a liquid supply pipe that vertically passes through the valve body 1, the outer cylinder 5, the inner cylinder 2, and the supply pipe 10; 21 is an O-ring attached to the upper end of the inner cylinder 2, and 15 is provided at the lower end of the valve body 1. a flange portion, 13 a spring receiver provided at the upper end of the inner cylinder 2; 12 a seasoning adjustment spacer; 4 a gas vent hole provided at the lower end of the gas vent pipe 7; 9 a gas vent hole 7; The tip 11 is attached to the tip 9, and the bottle 20 is a bottle. When the bottle is pushed up from below as shown in FIG. The centering bell 8 is brought into contact with the gasket 12a, and the centering bell 8 is brought into contact with the gasket 12a.
If the bottle 20 is pushed up further, the inner cylinder 2 will be lifted up while compressing the spring 14. As a result, the liquid supply pipe 10 is also pushed upward, the lower end of the liquid supply pipe 10 is opened, and the liquid flows into the bottle 20 through the valve body 1 in the filling tank 22 and the inner cylinder 2. On the other hand, the air A2 in the bottle 20 is discharged into the filling tank 22 through the gas vent hole 4 and the inside of the gas vent pipe 7. Furthermore, when the seasoning line B reaches the lower end of the liquid supply pipe 10, air is prevented from being discharged and no more liquid is filled. Further, when changing the filling height, the adjustment is made by changing the number (thickness) of the spacers 12. Further, when the shape of the bottle opening 20a is changed, the centering bell 8 is removed from the outer cylinder 5 and the packing 16 and centering bell 8 are replaced.

0003

[Problems to be Solved by the Invention] In the above-mentioned filling valve, the amount of seasoning is adjusted by changing the number (thickness) of the spacers, but at that time, while lifting the outer cylinder with one hand, the other hand is used to adjust the amount of seasoning. Adjusting the seasoning was extremely difficult because the number had to be changed. Furthermore, when liquid is discharged from the liquid storage tank via a filling valve, it is necessary to use a pseudo container with a drainage hole in the bottom and push it up with a cylinder in order to open the filling valve.

[0004]The present invention therefore provides a filling valve that eliminates the above-mentioned disadvantages.

[0005]

[Means for Solving the Problems] A cylindrical valve body is attached to a liquid storage tank so as to be oriented in a vertical direction, and an inlet is provided in the liquid storage tank. A liquid supply pipe with an outlet hole provided in the valve body, a gas vent pipe that vertically penetrates the valve body, the outer cylinder, and the liquid supply pipe and whose upper end opens into the gas phase of the liquid-filled tank; and the valve body. a valve body that is installed to be movable in the vertical direction at the bottom of the valve body and opens and closes the outlet hole of the liquid supply pipe; an opening/closing lever that has a rotatable end and moves the valve body up and down; A filling valve is constituted by a centering bell attached to the lower end of an outer cylinder that is fitted around the outer periphery so as to be movable in the vertical direction, and an elastic body that urges the outer cylinder downward.

[0006]

[Operation] The container is raised and lowered by an air cylinder or the like, and when it comes into contact with the centering bell, the container is sealed by an elastic body that urges the outer cylinder downward. Further, the opening/closing lever operates integrally with the valve body of the liquid supply pipe. Therefore, when the opening/closing lever is lowered, the liquid supply pipe is closed by the valve body, and liquid filling is not performed. On the other hand, when the opening/closing lever is raised, the valve element also rises and becomes open, allowing liquid to be filled through the hole drilled in the lower part of the liquid supply pipe. That is, liquid filling is performed by moving the opening/closing lever up and down, regardless of the elevation of the container.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The filling valve of the present invention will be explained with reference to the drawings. In addition, FIG. 1 shows a front sectional view, FIG. 2 shows a side sectional view, and FIG.
The right side of FIG. 2 shows a state where liquid filling is possible, and the left half of FIGS. 1 and 2 shows a state where liquid filling is impossible. Moreover, FIG. 3 is a diagram showing a sectional view taken along arrow B in FIG. Note that the same reference numerals are given to parts etc. that perform the same functions as in the past.

Reference numeral 1 denotes a cylindrical valve body hanging from the liquid storage tank 22, 5 an outer cylinder fitted around the outer periphery of a retaining ring 3 to be described later so as to be movable in the vertical direction, and 6 an outer cylinder 5 of the outer cylinder 5. A sliding bush attached to the upper end, 45 an elastic body that urges the outer cylinder 5 downward, 8 a centering bell attached to the lower end of the outer cylinder 5, 27 the inner periphery of the centering bell 8 An O-ring 2 is attached to the surface and seals the liquid supply pipe 10 constituting the valve body 2 and the centering bell 8, and 2 is a valve body, and an upper sliding valve 2a is fitted onto the liquid supply pipe 10, which will be described later.
and a fixing nut 2b that fixedly connects the liquid supply pipe 10, and are both mounted so as to be movable in the vertical direction. 14 is a spring that urges the valve body 2 downward; 10 is a part of the valve body 2; a liquid supply pipe that forms a liquid outlet 25 at the bottom by sliding up and down; 7 is a main body of these valves. 1
and a gas vent pipe that penetrates the outer cylinder 5 and the valve body 2 in the vertical direction and has an upper end open to the gas phase portion A1 of the liquid filling tank 22, an O ring 21 attached to the upper end of the outer cylinder 5, 44 is a plate that fits into the upper sliding valve 2a and is fixed with a fixing nut 2b, and the opening/closing lever 40 connected at the left and right ends of the plate 44 is rotatable with the arm 42 hanging down to the liquid storage tank 22. It is attached with a pin 41 and can be moved up and down. Reference numeral 3 denotes a retaining ring, which comes into contact with the outer cylinder 5 and prohibits downward movement. 4 is a gas vent hole provided at the lower end of the gas vent tube 7, 9 is a tip tip provided at the bottom end of the gas vent tube 7, 11 is an O-ring attached to the tip 9, and 20 is a tip tip provided at the bottom end of the gas vent tube 7. 50 is an air cylinder that pushes up the container 20. The outer cylinder 5 and the valve body 2 include
It has notches 55 and 56, respectively, into which the plate 44 is loosely fitted.

Next, the operation of the above structure will be explained. The left side views of FIGS. 1 and 2 show a state in which liquid filling is not possible. That is, the air cylinder 50 is in a lowered state with the container 20 placed thereon, and the outer cylinder 5 is not subjected to any pressing force from below, and the outer cylinder 5 is urged downward by the urging force of the elastic body 45. , and maintains the stopped state at the lower flange portion 15 of the retaining ring 3. On the other hand, in such a case, the opening/closing lever 40 is set to the lower (solid line) position. The valve body 2 is moved downward via the plate 44. Therefore, the inlet 25 and the gas vent hole 4 are closed by the liquid supply pipe 10 and are not filled with liquid.

On the other hand, when the air cylinder 50 rises,
The mouth of the container 20 comes into contact with the packing 16, and the elastic body 45 contracts and the mouth of the container 20 is sealed by the elastic force. On the other hand, in this state, when the opening/closing lever 40 is raised (as indicated by the chain line in FIG. 1), the valve body 2 is raised by the opening/closing lever 40. That is, the liquid supply pipe 10 is raised relative to the distal tip 9, and both the liquid inlet 25 and the gas vent hole 4 are opened. The liquid flows from the liquid storage tank 22 to the inlet 2
8. The container 20 is filled from the liquid supply pipe 10 and the inlet 25. At this time, the air in the container 20 is discharged to the gas layer A1 of the liquid storage tank 22 via the gas vent hole 4 and the gas vent pipe 7. When the liquid closes the vent hole 4, liquid filling is stopped. That is, the amount of seasoning is determined by the position of the gas vent hole 4, and determined by the distance V between the tip 9 and the mouth of the container 20 shown in FIG. That is, if the air cylinder stroke is constant, it is determined by the distance T between the upper end of the cylinder 50 and the lower end surface of the liquid storage tank 22. Therefore, the amount of seasoning can be changed by changing the mounting positions of the liquid storage tank 22 and the air cylinder 50. Or air cylinder 5
The stroke L of 0 may be changed.

[0011] Furthermore, as described above, the filling valve of the present invention has the following features:
Liquid filling can be done by moving the opening/closing lever 40 up and down, unlike the conventional method. Therefore, when draining the liquid from the liquid storage tank 22 through the filling valve, the opening/closing lever 40 is used to open the filling valve.
Since it is only necessary to move it upward, there is no need to push it up with a cylinder as in the conventional example. In the embodiment described above, the spring 14 is not necessarily necessary, and the filling process may be controlled using a guide that adjusts the opening/closing lever to an appropriate position.

0012

[Effects of the Invention] The filling valve according to the present invention includes a cylindrical valve body attached vertically downward to a liquid storage tank, an inlet in the liquid storage tank, and an outlet hole in the lower part of the valve body. a gas vent pipe that vertically passes through the valve body and the liquid supply pipe and whose upper end opens into the gas phase of the liquid filling tank; and a gas vent pipe that vertically moves at the bottom of the valve body. a valve body that can be attached to the valve body to open and close the outlet hole of the liquid supply pipe; an opening/closing lever having a rotatable end that moves the valve body up and down; an outer cylinder that can be fitted into the outer cylinder, a centering bell attached to the lower end of the outer cylinder, and an elastic body that biases the outer cylinder downward, and the opening/closing lever lifts the outer cylinder and supplies liquid. By opening the outlet hole of the pipe, the following effects can be obtained.

[0013] The amount of seasoning can be changed simply by changing the mounting position of the liquid storage tank or the stroke or mounting position of the air cylinder for lifting and lowering the container, so it can be done more easily than in the past. Further, when draining the liquid from the liquid storage tank via the filling valve, the filling valve can be opened and closed by operating the opening/closing lever, regardless of the air cylinder, so that the drawing operation can be easily performed.

[Brief explanation of drawings]

FIG. 1 is a front sectional view of a filling valve according to the invention.

FIG. 2 is a side sectional view of FIG. 1;

FIG. 3 is a sectional view taken along arrow B in FIG. 2;

FIG. 4 is a sectional view of a filling valve showing a conventional example.

FIG. 5 is a diagram showing a state in which the filling valve of FIG. 4 is pushed up by a container.

[Explanation of symbols]

1 Valve body 2 Valve body 2a Upper sliding valve 4 Gas vent hole 5 Outer cylinder 7 Gas vent pipe 8 Centering bell 10 Liquid supply pipe 40 Opening/closing lever

Claims (1)

[Claims] 1. A cylindrical valve body attached vertically downward to a liquid storage tank; a liquid supply pipe having an inlet in the liquid storage tank and an outlet hole in the lower part of the valve body; a gas vent pipe that vertically penetrates the valve body and the liquid supply pipe and has an upper end open to the gas phase portion of the liquid filling tank; A valve body that opens and closes the outlet hole of the pipe, an opening/closing lever whose end is rotatable and moves the valve body up and down, and an outer body fitted around the outer periphery of the valve body so as to be movable in the vertical direction. A cylinder, a centering bell attached to the lower end of the outer cylinder, and an elastic body that urges the outer cylinder downward, and the opening/closing lever lifts the outer cylinder to open the outlet hole of the liquid supply pipe. A filling valve characterized by comprising: