JPH01153490A - Washer for filling valve - Google Patents

Abstract

PURPOSE: To recover a cleaning liquid and to clean a first seal member by forming an annular groove on a liquid injection tube, mounting a cylindrical member and a second seal member on a valve body, forming a projecting seal portion on the cylindrical member, and mounting a cup for recovering the clean ing liquid and an engagement member. CONSTITUTION: A cup 25 for recovering the cleaning liquid is kept into contact with a lower face of a guide cone 19 mounted on a second cylindrical member 20 to seal that part, then the guide cone 19 is lifted more for bringing an upper face of the guide cone 19 into contact with a seal member 24 mounted on a lower face of a first cylindrical member 16 to seal that part, and simultaneously the first cylindrical-member 16 is lifted. When the guide cone 19 is further lifted in this condition, the upper face thereof is brought into contact with a lower face of a supporting member 14 whereby a liquid injection tube 4 is lifted, and the liquid valve 12 and the air valve 13 are opened. When the liquid injection tube and the first cylindrical member 16 are lifted to the cleaning position, the projecting seal portion 16d of the first cylindrical member 16 is closely pressed to a second seal member 27 mounted on a stopper portion 2a of the valve body 2 to seal that part.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a cleaning device for a filling valve that fills a container with a filling liquid.

``Prior art'' Conventionally, a filling valve for filling a container with a filling liquid is installed in a cylindrical valve body so as to be able to rise and fall freely, and when it rises, the liquid valve is opened and the filling liquid is filled into the container. a seal member provided on the valve body to prevent the filling liquid from leaking between the valve body and the liquid injection pipe; 1. Filling valves with a guide cone that can be raised and lowered to center a container are well known.

``Problems to be Solved by the Invention'' Various configurations of cleaning devices for cleaning filling valves having the above configuration have been proposed, but generally those with a simple configuration collect the cleaning liquid. It was not possible to do so, and those that allowed the cleaning solution to be recovered were complicated and expensive.

"Means for Solving the Problems" In view of such circumstances, the present invention provides the above-mentioned filling valve,
In other words, it is installed in a cylindrical valve body so that it can be raised and lowered,
A liquid injection pipe that opens a liquid valve when rising to fill the container with filling liquid; and a liquid injection pipe that is provided on the valve body to prevent the filling liquid from leaking between the valve body and the liquid injection pipe. 1. In a filling valve equipped with a sealing member and a kite cone that is movable up and down to center the container, the liquid injection pipe is connected to the liquid injection pipe during normal filling operation! j′I
- located at a cleaning position above the lowering range, when the first seal member is positioned to form an annular groove forming a cleaning gap between the first seal member and the first seal member; A cylindrical member surrounding the liquid injection pipe is provided on the outer periphery of the body so as to be movable up and down, and a second seal member is provided on the valve body inside the cylindrical member at a distance from the inner peripheral surface of the cylindrical member. , further bulges radially inward at a predetermined position on the inner circumferential surface of the cylindrical member, and when the cylindrical member is raised from the lowering end position to the cleaning position, it comes into close contact with the second sealing member and the cylindrical member forming a convex seal portion for sealing an upper portion of the cylindrical member; further sealing a lower portion of the guide cone and the cylindrical member;
and a cleaning liquid recovery cup that raises the cleaning liquid from the lower end position to the cleaning position and holds the cleaning liquid collection cup at that position, and an engaging member that raises the liquid injection pipe to the cleaning position as the cups rise. It was designed to be provided.

"Operation" According to the above configuration, the filling valve is cleaned. In this case, by raising the guide cone and the cylindrical member to the cleaning position using the cleaning liquid collection cup, the liquid injection pipe can be raised to the cleaning position via the engagement member.

In this state, the convex seal part of the cylindrical member and the second seal member of the valve body can seal the upper part of the cylindrical member surrounding the liquid injection pipe, and the cleaning liquid collection cup can be used to guide the liquid injection pipe. Since the lower portions of the cone and the cylindrical member can be sealed, the cleaning liquid can be collected in the cleaning liquid recovery cup.

Furthermore, by raising the liquid injection pipe to the cleaning position, the portion of the first sealing member that prevents the filling liquid from leaking from between the valve body and the liquid injection pipe in the annular groove of the liquid injection pipe. Since the cleaning gap can be formed, the first seal member can also be cleaned, and the cleaning liquid can be recovered by the cleaning liquid recovery cup.

``Embodiment'' The present invention will be described below with reference to the illustrated embodiment. In FIG. 1, the rotary filling device is equipped with a rotating body (not shown) and a filling liquid tank attached to the rotating body. A plurality of filling valves 1 are mounted on the lower surface of the rotary body at predetermined intervals on a circle centered on the rotation center of the rotary body.

Each of the above-mentioned filling valves 1 includes a valve body 2 that is attached to the above-mentioned filling liquid tank facing vertically downward, and this valve body 2.
A liquid injection pipe 4 is fitted inside the liquid injection pipe 4 so as to be able to rise and fall while maintaining liquid tightness with a first seal member 3, and an exhaust pipe is roughly penetrated into each liquid injection pipe 4 and fixed to the filling liquid tank by a bracket (not shown). 5 (see Figure 2).

The inside of the liquid injection pipe 4 is a filling liquid passage 7 for filling the filling liquid into the container 6, and the filling liquid passage 7 is inserted into the filling liquid tank through a slit 4a formed in the liquid injection pipe 4 in the axial direction. It communicates with the bottom of the.

Further, as shown in FIG. 2, the inside of the exhaust pipe 5 is an exhaust passage 8 for discharging the air inside the container 6.
communicates with the space above the filling liquid level in the filling liquid tank.

A pipe 9 having a larger diameter than the exhaust pipe 5 is fixed to the lower end of the exhaust pipe 5, and the upper part of the inside of the vibe 9 communicates with the filling liquid passage 7, and the lower end is connected to the plug member 10. It is sealed by. The lower part of the filling liquid passage 7 can be communicated with the outside through an opening 9a formed in the pipe 9,
Further, the lower part of the exhaust passage 8 can communicate with the outside through an opening 5a formed in the side of the exhaust pipe 5 and an opening 9b formed in the vibrator 9.

Furthermore, the lower small diameter portion 4b of the liquid injection pipe 4 is connected to the vibrator 9.
As shown in FIG. 11
The liquid injection tube 4 is urged downward, and normally the lower end 4d of the liquid injection tube 4 is seated on a valve seat 10a formed on the plug member 10.

Therefore, the lower end 4d of the liquid injection pipe 4 and the valve seat 1 of the plug member IO
A liquid valve 12 that opens and closes the filling liquid passage 7 and an air valve 13 that opens and closes the exhaust passage 8 are formed by the liquid injection pipe 4 and the valve seat 10a. 13 closes off each passage 7.8.

As shown in FIG.
A cylindrical support member 1 is formed on this threaded portion 4e.
4 are screwed together, and a rubber bottle packing 15 is housed and held in the lower part of the support member 14. Therefore, by rotating the support member 14, the position of the bottle packing 15 can be adjusted up and down.

A cylindrical first cylindrical member 16 surrounding the liquid injection pipe 4 and the support member 14 is attached to the outer periphery of the valve body 2 attached to the lower surface of the filling liquid tank, and is movable up and down and rotatably. Due to its own weight, the stepped portion 16a provided above the first cylindrical member 16 is held at the lowermost position where it comes into contact with the stopper portion 2a provided on the valve body 2.

A gear 17 is integrally formed on the outer peripheral surface of the first cylindrical member 16 from the center to the upper end.Each gear 17 provided for each filling valve 1 is connected to a common ring-shaped sun gear 18. It's meshing. This sun gear 18 is rotatably provided on the above-mentioned rotating body about its rotation center, and when the sun gear 18 is rotated by a motor (not shown) or manually, the first cylindrical member 16 of each filling valve 1 is rotated. This allows them to be rotated all at once in the same direction.

Splines 16b and 14a are formed on the inner circumferential surface of each of the first cylindrical members 16 and the outer circumferential surface of the support member 14, respectively, and by mutually engaging both splines 14a and 16b, each 1 When the cylindrical member 16 is rotated, the support member 14 is rotated integrally, and the support member 14 is rotated.
Also, the bottle packing 15 can be vertically displaced with respect to the liquid injection pipe 4.

Furthermore, a second guide cone 19 is provided at the lower part of each first cylindrical member 16 to center the upper end opening of the container 6.
A cylindrical member 20 is provided to be able to move up and down, and when the second cylindrical member 20 normally moves due to its own weight, the stepped portion 20a of the second cylindrical member 20 reaches a stopper formed on the outer periphery of the lower end of the first cylindrical member 15. It is located at the lower end position where it comes into contact with the portion 16c.

Next, the configuration for cleaning each filling valve 1 will be explained. A sealing member 24 is attached to the lower surface of the first cylindrical member 16, and this sealing member 24 is designed to absorb cleaning liquid as shown in FIG. The second cylindrical member 2 is removed by the collection cup 25.
When the cone 0 is raised to a greater extent than the range of elevation during normal filling operation, it can come into contact with the upper surface of the guide cone 19 and seal that portion.

Further, when the guide cone 19 is brought into contact with the seal member 24 and the first cylindrical member 16 is raised, the guide cone 19 is further brought into contact with the lower surface of the support member 14 to close the liquid injection tube 4. This allows the liquid valve 12 and air valve 13 to be opened. At this time, a notch 14b formed at the lower end of the support member 14 allows a cleaning liquid passage there to be secured.

Further, a convex seal portion 16d is formed in the middle portion of the inner circumferential surface of each first cylindrical member 16, and protrudes radially inward.
This convex seal portion 15d is connected to the cleaning liquid recovery cup 2.
5, the first cylindrical member 16 via the second cylindrical member 20
When the stopper part 2a of the valve body 2 is raised significantly, it is pressed against a second seal member 27 attached to the outer periphery of the stopper part 2a of the valve body 2, thereby sealing that part. Therefore, in this state, the interiors of the first cylindrical member 16 and the second cylindrical member 20 are sealed from the outside by the seal members 24, 27.

On the other hand, the liquid injection pipe 4 is located at a lower position a predetermined distance away from the first sealing member 3 that seals the gap between the liquid injection pipe 4 and the valve body 2, that is, in a normal filling operation.
An annular groove 4f is formed at a position further below the vertical movement range. And the above-mentioned cleaning liquid recovery cup 25
When the liquid injection pipe 4 is raised greatly and placed in the cleaning position, the first sealing member 3 can be positioned within the annular groove 4f to form a cleaning gap 28 between them. I have to.

In the above configuration, the operation when filling the container 6 with the filling liquid will be explained first. When the filling liquid tank, each filling valve 1', and the sun gear 18 are integrally rotated by the rotation of a rotating body (not shown), containers 6 are placed one after another from the outside on a lifting table (not shown) disposed below each filling valve 1. is supplied. When the containers 6 are lifted by the lifting of each lifting table, the upper end of each container 6 is centered by the guide cone 19 of each filling valve 1, and the guide cone 19 and the second cylindrical member 20 are integrally connected. to rise to.

As the container 6 rises, the lower small diameter portion 4b of the liquid injection tube 4 is relatively inserted into the container 6, and the upper end opening of the container 6 is pressed against the bottle packing 15. 15, and when the container 6 is raised further, the liquid injection pipe 4 resists the elastic force of the spring 11.
is raised, so that the lower end 4d of the liquid injection pipe 4 is aligned with the valve seat 10a.
The liquid valve 12 and the air valve 13 are opened.

As a result, filling of the filling liquid into the container 6 is started from the opening 9a of the filling liquid passage 7, and as the filling liquid is being filled into the container 6, the air inside the container 6 is discharged through the exhaust passage 8. It is discharged to the outside. At this time, the first cylindrical member 16 remains held at the lower end position by its own weight, and is not raised or lowered by the raising or lowering of the container 6.

When the container 6 is filled with the filling liquid and the exhaust passage 8 is also filled with the filling liquid, filling with the filling liquid is completed. When this state is reached, the container 6 is lowered and the elastic force of the spring 11 causes the liquid to be poured. The lower end 4d of the tube 4 is seated on the valve seat 10a. As a result, the liquid pulp 12 and the air valve 13 are closed, and the filled container 6 is carried out to the outside of the rotating body. At this time, the empty space h (FIG. 2) in the container 6 is obtained by the height difference between the opening 5a of the exhaust passage 8 and the bottle packing 15.

Next, when changing the empty size by changing the type of the container 6, etc., the sun gear 18 may be rotated by a predetermined amount in a predetermined direction relative to the rotating body. Sun gear 18 above
When rotated, the first cylindrical members 16 of all the filling valves 1 are simultaneously rotated in the same direction by the gears 17 meshing with the sun gear 18 as the sun gear 18 rotates. Then, when each first cylindrical member 16 is rotated, the spline 16b.

The support member 14 is rotated via the support member 14a and is vertically displaced relative to the liquid injection pipe 4.

Therefore, the bottle Robachin 1 supported by the support member 14
5 is also moved up and down, the empty dimensions of each filling valve 1 can be changed all at once by rotating the sun gear 18.

Next, when cleaning each filling valve 1, as shown in FIG. It is brought into contact with the lower surface of the cone 19 to seal that part.

Then, the cleaning liquid collection cup 25 is raised greatly and the second
The cylindrical member 20 is raised and the upper surface of the guide cone 19 is brought into contact with the sealing member 24 provided on the lower surface of the first cylindrical member 16 to seal that part, and at the same time The first cylindrical member 16 is raised while maintaining the meshing state between the gear 17 and the sun gear 18.

When the guide cone 19 is further raised from this state, its upper surface comes into contact with the lower surface of the support member 14 and the liquid injection tube 4 is raised, thereby causing the liquid valve 12 to rise.
And the air valve 13 is opened.

When the liquid injection pipe and the first cylindrical member I6 are raised to the cleaning position, the convex seal portion 16d of the first cylindrical member 16 is removed.
is provided on the stopper portion 2a of the valve body 2!'! jS2
The first seal member 3 of the valve body 2 is relatively positioned within the annular groove 4f of the liquid injection pipe 4, thereby forming the cleaning gap 28. be done.

At this time, the cleaning liquid recovery cup 25 may be manually raised to engage with a hook provided in the filled liquid tank, or on the contrary, the cleaning liquid recovery cup 25 may be engaged with a hook provided in the filled liquid tank. With the fixed at a predetermined height,
The filling valves 1 may be lowered simultaneously by lowering the filling liquid tank.

In the above-mentioned state, a washing a.
When filled with liquid, the cleaning liquid flows through the filling liquid passage 7 in the liquid injection pipe 4 and the exhaust passage 8 in the exhaust pipe 5 to clean each part, and the cleaning liquid is collected from the liquid valve 12 and the air valve 13. It is collected in the cup 25.

Also, from inside the filling liquid tank, the first seal member 3 and the annular groove 4 are removed.
The cleaning liquid that has flowed into the first cylindrical member 16 through the cleaning gap 28 between
The cleaning fluid flows through the gap between the splines, especially the gap between the top of one spline and the bottom of the valley of the other spline, and is further collected into the cleaning liquid recovery cup 25 through the notch 14b formed in the support member 14. Ru.

The cleaning liquid recovered in the cleaning liquid recovery cup 25 is recovered into a recovery tank (not shown) via a conduit connected thereto.

When the cleaning of the filling valve 1 is completed in this way, the cleaning liquid recovery cup 25 is removed, and the liquid injection pipe 4 is lowered to the lower end position by the elastic force of the spring 11. The first cylindrical member 16 via the engagement member 26
also lowered. Then, when the convex seal portion 16d of the first cylindrical member 16 and the second seal member 27 of the valve body 2 are disengaged, the first cylindrical member 16 is lowered by its own weight to the lowering end position, and further as described above. The second cylindrical member 20 also descends to the lower end position due to its own weight.

Note that in the above embodiment, the engaging member 26 is connected to the first cylindrical member 16.
However, the second cylindrical member 20, the guide cone 19
Alternatively, it can be provided in the washing liquid recovery cup 25. Further, the gear 17 and sun gear 18 can be omitted if necessary, and in that case, it is particularly desirable that the first cylindrical member 16 and the second cylindrical member 20 be integrated. It is clear that the sealing member 24 can be omitted in that case.

"Effects of the Invention" As described above, according to the present invention, an annular groove is formed in the liquid injection pipe of a filling valve, a cylindrical member and a second seal member are provided in the valve body, and the cylindrical member is provided with a cylindrical member. The cleaning liquid that has washed the filling valve can be recovered by the cleaning liquid recovery cup with a simple configuration of forming a convex seal portion and further providing a cleaning liquid recovery cup and an engaging member. The annular groove provides the effect that the first seal member provided between the valve body and the liquid injection pipe can also be cleaned.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a filling valve showing an embodiment of the present invention;
FIG. 2 is an enlarged cross-sectional view showing the main part of FIG. 1, showing a state different from that in FIG. 1, and FIG. 3 is a cross-sectional view showing the filling valve in FIG. 1 in a cleaning state. 1...Filling valve 2...Valve body 3...
・First seal member 4... Liquid injection pipe 4f... Annular groove
5... Exhaust pipe 6... Container 7.
...Filling liquid passage 8...Exhaust passage 12...Liquid valve 13...Air valve 16...First cylindrical member 16d...Convex seal portion 19...Guide cone 20...No. 2 Cylindrical member 25...Cup for cleaning liquid recovery 26...Engaging member 27...Second seal portion 28...Cleaning gap Figure 1 Figure 2 Broom 3 Mouth

Claims (1)

[Scope of Claims] A liquid injection pipe that is provided in a cylindrical valve body so as to be able to rise and fall and that opens a liquid valve when rising to fill a container with a filling liquid; and the liquid injection pipe to prevent the filling liquid from leaking.
A filling valve comprising a sealing member and a guide cone that is movable up and down to center the container, wherein the liquid injection pipe is positioned at a cleaning position above the lifting range during normal filling operation. When the first seal member is positioned, an annular groove forming a cleaning gap is formed between the first seal member and the first seal member, and a cylinder surrounding the liquid injection pipe is formed on the outer periphery of the valve body. A second seal member is provided on the valve body inside the cylindrical member to be spaced apart from the inner circumferential surface of the cylindrical member, and a second seal member is provided on the inner circumferential surface of the cylindrical member at a required position. A convex seal portion that bulges radially inward and comes into close contact with the second seal member to seal the upper portion of the cylindrical member when the cylindrical member is raised from the lower end position to the cleaning position. further sealing the lower part of the guide cone and the cylindrical member,
and a cleaning liquid recovery cup that raises the cleaning liquid from the lower end position to the cleaning position and holds the cleaning liquid at that position, and an engaging member that raises the liquid injection pipe to the cleaning position as the cleaning liquid collection cup rises. A filling valve cleaning device characterized by: