JPS5933834Y2 - Valve opening/closing device for double row filling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a double-row filling machine, and more particularly to a valve opening/closing device for opening and closing each valve of an inner filling nozzle and an outer filling nozzle.

Conventionally, a valve opening/closing device for a double-row filling machine is known in which a valve opening/closing mechanism for opening and closing the valve of each pair of filling nozzles is commonly provided for each pair of inner and outer filling nozzles.

However, in a valve opening/closing device with such a configuration, in the unlikely event that
Even when a container is supplied to only one of the pair of inner and outer filling nozzles, the valves of both filling nozzles are opened by the valve opening/closing mechanism, and the filling liquid or the high pressure gas pressurizing it is wasted. It had

For this reason, a valve opening/closing device that can independently control the opening and closing of each valve of the inner and outer filling nozzles has been proposed. The valve was installed in a low position and a valve opening/closing mechanism was connected to it, and the inner valve was installed in a high position and linked to another valve opening/closing mechanism, making the valve opening/closing mechanism as a whole complicated and expensive. There was a drawback.

In view of these drawbacks, the present invention has a pair of inner and outer filling nozzles as a set, and a valve opening/closing mechanism is provided for each pair, and this valve opening/closing mechanism can independently control the opening and closing of the valves of the inner and outer filling nozzles. The present invention provides a valve opening/closing device for a double-row filling nozzle.

The present invention will be explained below with reference to the illustrated embodiments.
In FIG. 2, casings 2 are attached to the outer circumferential wall of an annular filled liquid storage tank 1 rotated about an axis O at equal intervals in the circumferential direction.

Each casing 2 has upper and lower cylindrical parts 2a extending in the radial direction.
, 2b and both cylindrical parts 2a, 2 on the inside and outside in the radial direction.
The vertical cylindrical portions 2C and 2d integrally connect the cylindrical portions 2a to 2d, and the insides of the cylindrical portions 2a to 2d communicate with each other.

This casing 2 has a cylindrical part 2a extending in the radial direction,
2b is attached to the circumferential wall of the tank 1 through attachment portions 2e formed in each opening, and as shown in FIG. 3, the opening 2f of the upper cylindrical portion 2a is It communicates with the upper part of the tank 1 through the opening 1a, and the lower cylindrical part 2b similarly communicates with the lower part of the tank 1.

As a result, the filling liquid stored in the tank 1 is introduced from the lower cylindrical part 2b into the vertical cylindrical parts 2C and 2d until the water level becomes the same as the water level in the tank 1, and the filling liquid is added. The high-pressure gas introduced into the upper space inside the tank 1 for pressure is introduced from the upper cylindrical part 2a to the upper part of the vertical cylindrical parts 2C and 2d.

Although not shown, a conventionally known gas filling nozzle is provided in each of the vertical cylindrical portions 2C and 2d.

The opening/closing mechanism for opening and closing the valve of the gas filling nozzle is constructed as follows.

That is, as shown in FIG. 3, a rotating shaft 3 is disposed in the radial direction within the upper cylindrical portion 2a of each casing 2, and the outer side of the rotating shaft 3 in the radial direction is connected from the cylindrical portion 2a. It is rotatably supported by the cylindrical portion 2a in a state of being projected to the outside.

A fork-shaped arm 4 is fixed to the radially inner part of the rotating shaft 3, and this arm 4 is interlocked with the valve 5 of the filling nozzle located radially inner. A cam 6 for rotating is fixed.

Further, a second rotating shaft 7 having one end inside the cylindrical portion 2a and the other end facing outside is rotatably fitted into the rotating shaft 3, and the second rotating shaft 7 is fitted into the inner end of the rotating shaft 7. Forms a fork-like arm 9 that interlocks with the valve 8 of the outer filling nozzle, and has a cam 10 fixed to the outer end of the rotating shaft 7.

Therefore, via the cams 6.10, the rotational shafts 3.
By rotating 7 by a required angle, the valves 5.8 of the inner and outer filling nozzles can be independently controlled to open and close via each arm 4,9.

Next, a detection operation mechanism for detecting the presence or absence of a container and controlling the opening and closing of the valves 5 and 8 separately will be described.

Each of the casings 2 has a vertical cylindrical portion 2 C, 2
Lifting rods 11a and llb are provided at the front and rear of each rotational direction of d, respectively, and known seed opening guide members 12a and 12b are installed across the lower ends of each pair of lifting rods 11a and 11b, and across the upper ends of each pair of lifting rods 11a and 11b. Attach the rollers 13a13b respectively.

On the other hand, a hollow shaft 15b, which rotatably supports a shaft 15a, is supported on a bracket 14 provided on a fixed frame of the filling machine, and an arm 16a is attached to one end of each shaft 15a, 15b. 16b are connected and fixed.

Each arm 16a, 16b includes a seed opening guide member 12a,
12b, lifting rods 11a, 11b and upper workpiece 13
Container guide mechanism 1 consisting of a, 13b, respectively
When the guide mechanisms 7 a and 17 b are located at the lower end, they do not interfere with the guide mechanisms 17 a and 17 b, but each guide mechanism 17 a and 17 b
, 18b, respectively, when the arm 16a is raised to the rising end by the roller 13a, the arm 16a
b interferes with the roller 13b and is rotated in the direction of the arrow a in FIG. 2, respectively.

Furthermore, an arm 1 is attached to the other ends of the shafts 15a and 15b.
9a and 19b, respectively, and each arm A19a, 19
One ends of connecting rods 20 a and 20 b are connected to the ends of b.

The other ends of the connecting rods 20a and 20b are connected to an interference arm 22 which is pivoted to a shaft 21 attached to a fixed frame of the filling machine.
a and 22 are connected to the ends of b, respectively.

The interference arm 22a is provided at a position where it can interfere with the cam of the valve opening/closing mechanism, and the interference arm 22b is provided at a position where it can interfere with the cam 10 of the same mechanism, and as described above, the arms 16a,
When the shafts 15a and 16b are rotated by the rollers 13a and 13b, respectively, in the direction of the arrow a in FIG.
5b, arms 19a, 19b, and connecting rod 20a.

Each interference arm 22a, 22b is rotated in the direction indicated by the arrow in FIG.
2a, 22b can be moved from a position where they do not interfere with the cam 6.10 to a position where they do.

In addition, in FIGS. 1 and 2, 23a and 23b are bottle stand tables for raising and lowering the containers 18a and 18b, respectively.

With the above configuration, each pair of bottle stand tape/l inside and outside
/ Containers 18 a, 18 b on 23 a, 23 b
When both are supplied, the bottle stand table 23a,
The rise of 23 b causes the containers 18 a , 18 b to move upward, and accordingly, the container guide mechanisms 17 a , 17
b are respectively raised, so each mechanism 17a, 17
B no. 0-ra 13a and 13b are each arm 16a
, 16b.

Then, each roller 13a, 13b is rotated and transferred as the tank 1 rotates, and each roller 13a, 13b interferes with the arm 16a, 16b and moves it as shown by the arrow a in FIG.
When rotated in the direction, each interference arm 22
a, 22b are rotated in the direction indicated by the arrow in FIG. 2, and interfere with the cams 6 and 10, respectively.

Then, each cam 6.10 is rotated by each interference arm A22a, 22b in the direction of arrow C in FIG. The signal is transmitted to open each valve of the inner and outer gas filling nozzles.

As a result, a conventionally known filling operation is performed, and when the operation is completed, each cam 6.10 comes into contact with a fixed cam (not shown) and is rotated in the direction opposite to the direction of arrow C in FIG. 2, thereby closing each valve. .

If the container 18a is not supplied to only one of the pair of inner and outer bottle table tables 23a and 23b, for example, to the bottle table table 23a, the other container 18b is filled in the same manner as above. The work is done, but
On the side where the container 18a is not supplied, there is a bottle stand table 23.
Even if the container guide mechanism 17a rises, the container guide mechanism 17a does not rise, so there is no interference between the roller 13a and the arm 16a.

As a result, the interference arm 22a that can interfere with the cam 6 remains in a non-interference position where it cannot interfere with the cam 6, so the cam 6 passes through the interference arm 22a while remaining in the closed state and the filling operation is performed. There isn't.

In addition, as shown in FIG.
Even in a filling machine in which the filling nozzles 4 a and 24 b are provided in the tank 1, each filling nozzle 24 a and 24 b can be independently controlled depending on the presence or absence of a container in the same manner as described above.

Furthermore, in the embodiment described above, the position of the interference arms 22 a , 22 b is controlled by a mechanical mechanism depending on the presence or absence of the containers 18 a , 18 b , but in other cases, for example, the interference arms 22 a , 22 b or The interference member may be connected to a solenoid, and each solenoid may be electrically controlled by a limit switch operated by the rollers 13a, 13b, or a phototube that directly detects the presence or absence of the containers 18a, 18b. .

Furthermore, although the above embodiments have been explained using a gas filling machine as an example, it goes without saying that the present invention can be applied to other types of double-row filling machines.

As described above, in the present invention, each pair of inner and outer filling nozzles is set as a set, and a valve opening/closing mechanism is provided for each pair, and this valve opening/closing mechanism enables the opening and closing of the valves of the inner and outer filling nozzles to be controlled independently. Therefore, the configuration and assembly of the valve opening/closing device for the entire filling machine can be simplified, and the valve opening/closing mechanism has a detection operation for each rotating shaft to detect the presence or absence of a container. Since the mechanism can apply rotational force to each location separately, when a container is not placed on the bottle stand table, the valve opening/closing mechanism corresponding to that location will not operate at all, and the filling gas and liquid will not be activated. The effect is that an economical and efficient filling operation can be performed without wasting any of the above.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing one embodiment of the present invention, and Fig. 2 is a cross-sectional view showing an embodiment of the present invention.
3 is a sectional view taken along the line III--II in FIG. 1, and FIG. 4 is a sectional view showing another embodiment of the present invention. 3.7: Rotating shaft, 5, 8: Valve, 6, 10: Cam,
18a. 18b: Container.

Claims (1)

[Scope of utility model registration request] A pair of inner and outer filling nozzles concentrically form an inner row and an outer row, and a valve opening/closing mechanism for opening and closing the valves for each pair of inner and outer filling nozzles, and each valve opening/closing mechanism A first rotating shaft that opens and closes the valve in conjunction with the valve of the other filling nozzle, and a second rotating shaft that is rotatably fitted to the first rotating shaft and opens and closes the valve in conjunction with the valve of the other filling nozzle. a rotating shaft, each container detection mechanism that is selectively energized depending on the presence or absence of each container carried below each of the filling nozzles, and the first and second container detection mechanisms that are operatively linked to each container detection mechanism, respectively. A pair of fixed-side valve actuation mechanisms are provided that can be selectively displaced between an interference position that applies a rotational biasing force to the rotating shaft and a non-interference position that does not apply a rotational biasing force. A valve opening/closing device for a double-row filling machine characterized by the following.