JP2518412Y2 - Sealing device that also serves as a container with a different wide diameter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention is applicable not only to a back pressure type fluid filling device but also to a non-back pressure type fluid filling device, and is provided with a valve for filling a filling liquid into different diameter containers. The present invention relates to a sealing device that also serves as a wide-bore container.

(Prior Art) Generally, a valve for filling a wide mouth container such as an aluminum can or an iron can with a filling liquid is equipped with a sealing device that seals the container, and the sealing device is usually vertically movable in the valve body of the filling valve. Member, a seal member attached to the member, and a spring that biases the member downward to elastically contact the sealing material with the rim of the container to seal the container. .

Next, a conventional filling apparatus for different diameter containers will be described with reference to FIG. 4. The apparatus is provided with a plurality of filling valves 51 mounted at predetermined intervals on the outer peripheral portion of the bottom surface of a filling liquid tank 50 that is rotationally driven, Each filling valve 51 includes a bottomed cylindrical valve body 53 whose bottom end is closed by a bottom wall 52. The upper inside of each valve body 53 is communicated with the inside of the filling liquid tank 50 through a hole formed in the bottom of the filling liquid tank 50, and the liquid passage below the inside of the valve body 53 is the inner circumference of the different diameter container 54. The filling liquid in the filling liquid tank 50 is supplied so as to be immersed toward the surface.

The internal structure of the valve body 53, that is, the opening / closing device of the ring-shaped liquid valve 55, the arrangement mechanism of the exhaust pipe 56, and the exhaust pipe
56 exhaust passage 57, float valve 5 at the lower end of the exhaust pipe 57
8. The configurations of the sniff valve 63 and the like are similar to those of the conventionally known filling valve of this type. Also, the valve body 53 has a container 54
It is attached so as to be vertically movable by a plurality of members 59 and 59a corresponding to the container mouth types.

The lower composite member 59a is provided with a seal member 60 that abuts against the rim of the container 54 and seals the interior of the container.
The sealing member 60 is elastically brought into contact with the rim of the container 54 by elastically mounting the compression spring 62 between the flange portion of the valve body 53 and the ring-shaped plate 61 fitted on the outer periphery of the cylindrical portion of the valve body 53. I can do it. Further, when the container 54 to be filled has a different caliber, it is necessary to change the already mounted composite members 59, 59a to a composite member corresponding to the new container 54. However, in that case, what must be replaced and changed is that the lower composite member 59a and the seal member 60 are
Is.

(Problems to be Solved by the Invention) In a valve for filling a filling liquid into a container having a different wide diameter, the conventional sealing device has to replace the members constituting the container every time the container to be filled is changed. However, in order to replace it, unless the entire filling valve is taken out from the filling liquid tank 50, the member cannot be replaced, or on top of that, the composite member 59 which is a part of the filling valve or a part thereof is formed. Lower composite member 59a and seal member 6
It was necessary to replace 0, and a great deal of time and effort was spent on the direct and indirect replacement work. On the other hand, in the same way, in recent years various types of dual functions of substantially the main parts constituting the upper part of the filling valve have been achieved corresponding to different wide diameter containers, but regarding the sealing device forming the lower part Has not yet been peeled off from the replacement method of the prior art, and it is the current situation that the effect of dual use of the entire filling valve is halved.

The present invention is to solve the problem of the conventional wide-bore container without replacing the parts of the sealing device forming the lower part of the filling valve with the wide-bore container. The object is to solve the problem of time and labor involved in the replacement work of replacing parts, and at the same time to obtain a uniform sealing.

(Means for Solving the Problems) Therefore, in the present invention, in a sealing device of a filling device that is also used for a container having a different wide diameter, an upper member that is gas-liquid tight in the filling valve body of the valve mechanism, and An outer centering member that has a lower member that is gas-liquid tight and that is connected to a vent tube, is hung from the inner and outer peripheries of the lower end surface of the lower member, and has a maximum diameter that centers the outer edge of the container; An inner centering member having a taper is provided on the outer side for centering the inner rim of the container having a diameter substantially smaller than the caliber of the container, and at the lower end surface of the lower member sandwiched by the outer centering member and the inner centering member. , Having a seal member for elastically contacting the rim of the maximum caliber container and the small caliber container, and guiding the inner rim of the intermediate caliber container in the middle part of the seal member And a sealing member provided with a tongue for guiding the inner edge of the small-diameter container, which is a means for solving the problem.

(Function) For a container with a different wide diameter, a lower member and a sealing member attached to the lower member are used. The container edge is elastically contact-sealed, and for a container that is substantially smaller than the container caliber, the sealing member is elastically contact-sealed while centering the inner diameter of the container, and Without any replacement
It is possible to serve as a container having a different wide diameter while applying the sealing force only by the spring force.

(Embodiment) The present invention will be described below with reference to embodiments of the drawings.
FIG. 3 to FIG. 3 show an embodiment of the present invention. First, the first embodiment shown in FIG. 1 will be described. The filling device and the filling valve for the different-bore container are similar to those of the conventional filling device of this type.
A large number of filling valve main bodies 11 are attached to a pressure tank 10 which is rotationally driven by a drive system and stores a filling liquid, and the filling valve main body 11 accommodates a liquid valve holding member 12 at a position outside the ventilation pipe 14. Has been done. A gas valve (not shown) is provided at a substantially middle position above and below the vent pipe 14 as is known, and the gas valve is mechanically opened / closed from the outside at a gas layer position in the pressure tank 10.

The central portion of the filling valve main body 11 has a shape capable of blocking the filling liquid passage together with the annular liquid valve 13 at the tip of the liquid valve holding member 12. The liquid valve holding member 12 is a tubular body having a porous structure through which liquid can pass, and can move up and down together with the annular liquid valve 13 at the tip thereof. The vent tube 15 is vertically movably fitted to the lower end of the ventilation pipe 14 while maintaining an air-tight state with the vent tube 15. Vent tube
The up-and-down movement of 15 can be directly performed by the lower-side material moving means 16 because the lower-side material 22 is connected to the member piece 26. The lower part of the filling valve body 11 is a liquid valve.
A structure in which an annular slit-shaped liquid passage is provided from a position facing 13 and a lower end portion of which is filled and jetted toward the wall of the smallest diameter container 1 or the largest diameter container 1a (hereinafter referred to as container 1 or container 1a). Has become.

The sniff valve 18 is for communicating and shutting off the gas in the container and the valve body to the sniff chamber 19. The sniff valve 18 is pushed and released by an external cam or the like to cancel the communication. Further, the filling valve main body 11 is fitted with an upper member 21 capable of sliding up and down on the outer periphery of the valve main body 11 in a gas-liquid tight manner. Further, the upper member 21 and the lower member 22 are fitted to each other with a diameter smaller than the fitting diameter to form a differential pressure chamber 25 together with the valve body 11. This differential pressure chamber 25 is the valve body 11
And the space between the upper member 21 and the lower member 22 is communicated with the container 1 or 1a in space, and the opposite side is passed through the gas discharge passage 17 and to the sniff chamber 19 via the normally shut sniff valve 18. It is in communication. The differential pressure chamber 25 has a sliding surface diameter between the valve body 11 and the upper member 21 and a sliding surface diameter between the upper member 21 and the lower member 22 as shown in FIG.
24 are provided. The diameter of the sliding surface between the upper members 21 of the former is made equal to the diameter of the edge of the container 1a to be handled, and the diameter of the sliding surface between the upper and lower members of the latter is the same as the diameter of the edge of the container 1 to be handled. ing. Further, the lower member 22 is provided with a seal member 23 which also serves as an edge of the container 1 or 1a and seals against the elastic contact.

In the first embodiment, the lower end of the lower member 22 has an outer diameter of the container 1a having the maximum diameter to be handled when the elastic contact is made between the rim of the container 1 or 1a and the seal member 23. The outer centering bell 22a for centering the edge is formed, and the inner centering 22b for centering the inner edge of the smallest diameter container 1 to be handled is also formed, and the seal member 23 is fixed between the outer and inner centering bells in an integrated manner. Has been done. In this case, the seal member has a slight taper shape for the purpose of performing the dual elastic contact sealing from the upper portion within the range of the rim of the two-diameter container.

Next, the lower member 22 connected to the vent tube 15 by the member piece 26 is moved up and down by a required size together with the cam follower 33 which is a part of the lower member moving means 16. Further, the sealing force of the sealing member 23 is given an appropriate sealing force by the compression spring 32 which constitutes a part of the lower member elevating means 16. The stopper 31 has a flange head that is screwed to the valve body 11, and serves to limit and determine the downward movement position of the upper member 21, and a plurality of stoppers 31 are provided for the valve body 11.

Further, the positional relationship between the stopper 31 and the upper member 21 is such that the stopper 31 is in the state where the sealing of the small diameter container 1 is completed.
Abut the flange head of 31 and the outer edge piece of the upper member 21,
The downward movement position of the upper member 21 is limited and confirmed, and in the case of the container 1a, the flange position of the stopper 31 and the outer edge piece of the upper member 21 are not brought into contact with each other, and the lower position of the upper member 21 is set. The heights of the pressure tank 10 and the valve body 11 are adjusted so that they are not restricted. Next, the positional relationship between the upper member 21 and the lower member 22 is based on the positional relationship between the stopper 31 and the upper member 21, and in the case of the container 1, the vertical force relationship between the upper member and the lower member 22. In the case of the container (1a), they are brought into close contact with each other so that the force from the upper member (21) can be added to the lower member (22).

Next, the operation will be described. The container 1 or 1a is carried into the circular rail of the filling machine, and is lowered from the preliminarily raised position by the lower part material elevating means 1b so that the space between the seal member 23 and the rim of the container 1 or 1a is lowered. The spring 32 makes a forceful contact. That is, container 1
In either case 1a or 1a, the pressure in the container is 10
Even when the internal gas pressure is reached, the sealing member is constructed by the above-mentioned configuration.
The force applied from 23 to the rim of the container 1 or 1a (sealing sealing force) is only the force of the spring, and the valve body can be commonly used for different-diameter containers. On the other hand, since the seal member 23 for double-sided elastic contact sealing is fixed to the lower member 22, the lower member 22 is moved by the lower member elevating means 16.
At the same time, it begins to descend from the uppermost position.

At that time, in order to finally perform uniform sealing over the periphery of the container mouth, it is necessary to perform sufficient centering before sealing. First, the maximum diameter container 1a
In the case of, the lower center member 22 descends, and the outer centering bell 22a guides along the outer edge of the container to guide the container 1a into the circular rail of the filling machine at a predetermined position (valve body 11 and After the lowering of the lower members 22 is completed while correcting the deviation from the concentric axis position of the container) on the container base, the seal member 23 is provided at a portion necessary for the rim of the container 1a over the entire circumference of the rim of the container. In this case, the container 1a is contacted when the pressure is reached and the gas pressure in the pressure tank 10 is reached, and also when the back pressure type liquid is being filled.
A gas-liquid tight state is maintained between the edge of the seal member 23 and the seal member 23, and due to the structure of the valve body, the spring contact is always made only by the force of the spring.

Next, when handling the smallest diameter container 1, the lower member 22
Then, the lower member 22 is lowered without replacing the seal member 23 at all, and the inner centering bell 22b is guided along the inner edge of the container as the lower member 22 is lowered, and is corrected and corrected to a predetermined position of the container 1. After the lowering of the lower members 22 is completed, the entire circumference of the container rim is elastically contacted with the sealing member 23 at a necessary position on the container rim 1 and the following is the same as the case of the maximum diameter container 1a. Moreover, it is possible to obtain a sufficient contact state and an elastic contact force only by the spring force.

As described above, even when the diameter of the container to be handled is different, the outer centering bell 22a for centering the outer edge of the container at the lower end of the lower member 22 and the inner centering bell 22b for centering the inner edge of the container smaller than the container And at the same time, the lower edge member 22 and the seal member 23 are substantially replaced at the mouth edge of the different wide mouth container with the seal member 23 fixedly held between the outer and inner centering bells. Without using the sealing force, the sealing force can be applied only by the spring force while also being used as the sealing.

Next, a second embodiment will be described with reference to FIG.
A seal member 33, which also serves as an elastic contact seal with the rim of the container having a different diameter, is similarly attached and fixed to 32. An outer centering bell 32a is formed at the lower end of the lower member 32 to center the outer edge of the maximum diameter container 1 to be handled. The seal member 33 mounted and fixed to the outer centering bell 32a is substantially the same as the tongue portion 33a for centering the inner rim of the smallest diameter container 1 to be handled, and the ring width of the rim of the container to be handled in the outer edge direction. It is equipped with a part that seals against this elastic contact. With the above configuration, the center of the outer diameter of the container 1a having the largest diameter handled by the outer centering 32a is centered, and then the container 1a is elastically contacted by the seal member 33, and the inner diameter of the container 1 having the smallest diameter handled by the tongue portion 33a of the seal member 33 After centering the edges, the container 1 can be elastically contacted with the sealing member 33. Due to the above-mentioned action, it is possible to handle the containers of two kinds having different diameters without replacing the sealing device and to make the elastic contact seal.

Next, referring to FIG. 3, the third embodiment will be described.
As in the other embodiments, the lower member 42 has an integral sealing member 43 that is also used for the elastic contact with the rim of the different diameter container. Further, an outer centering bell 42a for centering the outer edge of the largest diameter container 1a to be handled is formed at the lower end of the lower diameter member 42, and the lower both materials are dimensioned to center the inner edge of the smallest diameter container 1 to be handled. The centering bell 42b of 42 is formed.

Further, the seal member 43 has a sealing portion for elastically contacting the caliber edges of the containers 1 and 1a and the other intermediate caliber containers 1b, and a tongue portion 43a for centering the inner rim of the intermediate caliber container 1b. And are formed together. That is, the maximum diameter container 1 handled by the outer centering bell 42a
Center the outer edge of a and use the inner centering bell 42b
Centering the inner rim of the smallest diameter container 1 handled by, and a sealing member for the intermediate diameter container 1b.
After centering the inner rim of the container 1b with the tongue portion 43a which is a part of 43, it is possible to finally seal the rims of the different caliber containers with elastic contact. That is, it is possible to provide a sealing device that can be used as a filling valve that handles three types of different-bore vessels and a sealing device for the filling valve, without replacing the constituent members.

Each of the above-mentioned embodiments shows a sealing device for a container with a different wide diameter, which is used for elastically contacting and sealing the lower member 22 and the sealing member 23 without lifting the container by the container base of the filling machine. According to this, even in the case of a system of lifting with a container base having a valve body that also serves as a container with a different wide diameter, a further effect is exhibited.

(Effects of the Invention) As described in detail above, the present invention is configured, and since it is possible to use the different wide diameter containers to be handled without replacing the lower materials and sealing members at all, it is possible to carry out a setup change work accompanying the container change. Is unnecessary. In addition, since uniform sealing can be obtained for containers with different diameters, deformation of the container edge at the time of elastic contact, dents, scratches, buckling of the container due to unbalanced load, etc. do not occur, especially during high-speed filling operation It is valid.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a filling device and a sealing device according to a first embodiment of the present invention, and FIGS. 2 and 3 show essential parts of a sealing device according to the second and third embodiments of the present invention, respectively. The sectional view shown in FIG. 4 is a vertical sectional view of a conventional filling device and sealing device. Description of main parts of the figure 10… Pressure tank 11… Filling valve body 14… Vent pipe 15… Vent tube 16… Bottom material up / down means 21… Top material 22,23, 42… Bottom material 22a, 32a, 42a… Outer centering bell (outer centering member) 22b, 42b ... Inner centering bell (inner centering member) 23, 33, 43 ... Sealing member 33a ... Tongue (inner centering member)

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Bibliographic references Sho 53-146660 (JP, U)

Claims (3)

(57) [Scope of utility model registration request] 1. A sealing device for a filling device, which is also used for a container having a different wide diameter, in which a filling valve main body of a valve mechanism is in a gas-liquid-tight state and an upper member in a gas-liquid tight state and a vent tube. An outer centering member having a connected lower member, hanging from the inner and outer peripheries of the lower end surface portion of the lower member, for centering the outer edge of the container having the maximum diameter, and a diameter substantially smaller than the diameter of the container having the maximum diameter. Is provided with an inner centering member having a taper on the outer side for centering the inner mouth edge of the container, and the lower diameter surface of the lower member sandwiched by the outer centering member and the inner centering member is A sealing device also serving as a container having a different wide diameter, which has a sealing member for sealing the elastic contact with the rim. 2. A sealing device of a filling device which is also used as a container having a different wide diameter according to claim 1, wherein a tongue portion for guiding an inner edge of the intermediate diameter container is provided at an intermediate portion of the sealing member. A wide-bore container and sealing device. 3. A sealing device of a filling device which is also used as a container having a different wide diameter, wherein an upper member which is gas-liquid tight in the filling valve body of the valve mechanism, and which is gas-liquid tight to the upper member and which is in a vent tube. An outer centering member having a connected lower member, hanging from the inner and outer peripheries of the lower end surface portion of the lower member, for centering the outer edge of the container having the maximum diameter, and a diameter substantially smaller than the diameter of the container having the maximum diameter. An inner centering member for centering the inner rim of the container is provided, and the lower end face of the lower member sandwiched by the outer centering member and the inner centering member is elastically contacted with the rim of the maximum caliber container and sealed with a small size. What is claimed is: 1. A sealing device also serving as a container with a different wide diameter, which has a sealing member provided with a tongue portion that guides the inner mouth edge of the diameter container.