JPH06227590A - Filling valve for liquid filling machine - Google Patents

Abstract

PURPOSE:To improve the operating efficiency of a liquid filling machine by a method wherein a vent pipe which is inserted in the central part of a nozzle is detachably fixed, and a filling valve is constituted of the inner cylinder of an air cylinder which is fixed on the lower surface of a liquid tank, the outer cylinder of the air cylinder which is vertically movably fitted, and the detachable opening/closing nozzle. CONSTITUTION:A filling valve 52 consists of a fixed nozzle 54 on which a flow down hole 53 for a liquid in a liquid tank 51 is provided, vent pipe 55 which is detachably inserted in the central part of the fixed nozzle 54, and at the lower end part of which a conical shape fixed valve seat 55a is provided, and an opening/closing nozzle 57 which is vertically movably supported by the fixed nozzle 54, at the lower part of which a bell-shaped part is formed, and at the central part of which a valve body 57a with a conical shape recessed surface is formed. At a side part of the bell shaped part, a screw hole 57c for a passage of a washing liquid is drilled, and for a valve opening/closing mechanism for washing, an inner cylinder 61 of an air cylinder which is fixed on the lower surface of the liquid tank 51, and an outer cylinder 63 are provided, and the outer cylinder 63 is slidably and airtightly fitted on the inner cylinder 61 and an end plate 62 from the outside, and a chamber 64 is formed of these members 61-63.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling valve for a liquid filling machine.

[0002]

2. Description of the Related Art A conventional liquid filling machine will be described with reference to FIGS. 4 to 6. 1 is a rotary table, 2 is a base for rotatably supporting the rotary table 1, and the rotary table 1 has a plurality of circumferential positions. A lifter 3 that supports the liquid-filled container is arranged in the. These lifters 3 have a lifting mechanism (not shown), and are lifted upward by a lifting mechanism (not shown) at the filling section, and the filling valve 4 described later is lifted by the edge of the filling container on the lifter 3. Is pressure-bonded to open the filling valve 4.

Reference numeral 5 denotes an annular tank (an annular tank containing a filling liquid) provided on the upper portion of the rotary table 1 so as to rotate integrally with the rotary table 1. A filling valve 4 is provided corresponding to the lifter 3. The filling valve 4 has a fixed nozzle 7 having a downflow hole 6 for allowing the liquid in the annular tank 5 to flow down, and a vent having a fixed valve seat 8 inserted and fixed at the center of the fixed nozzle 7 and provided at a lower end thereof. The pipe 9, the opening / closing valve 11 fitted to the outside of the lower portion of the fixed nozzle 7 so as to be slidable in the vertical direction, and the opening / closing valve 11 is urged downward to fix the lower end portion of the opening / closing valve 11 to the above. Spring 1 for elastic contact with valve seat 8
The pad case 12 that is in contact with the rim of the filling container is fixed to the outer lower part of the opening / closing valve 11, and the pad 12 'made of an elastic material is attached to the concave portion of the pad case 12. A cutout groove 13 is provided on the periphery of the elastic pad 12 '.

When the lifter 13 is lifted upward, the rim of the liquid filling container abuts against the elastic pad 12 ', and the opening / closing valve 11 rises against the spring 10, the opening / closing valve 11 and the fixed valve. A space is formed between the seat 8 and the liquid, and the liquid in the annular tank 5 is injected into and filled in the filling container through the downflow hole 6, and the opening / closing valve 11 is lowered by the spring 10 as the lifter 13 is lowered. Is seated on the fixed valve seat 8 and the downflow hole 6 is closed.

Reference numeral 14 denotes a plurality of air cylinders projecting downward from a bottom surface of the annular tank 5 near the center thereof, and reference numeral 15 denotes a piston fitted into the air cylinder 14, and a tip of a piston rod 16 of the piston 14 is provided. The portion is fixed to the annular lifting frame 17, and the annular lifting frame 17 is fixed with a corresponding number of push-up pieces 18 corresponding to the number of the filling valves 4.
Is engaged with the opening / closing nozzle 11 of the filling valve 4.

27 is a compressor, 25 is a solenoid valve, 26
Is a push button switch for operating the solenoid valve 25, 19 is a rotary joint, 20 is an air supply pipe, and air is sent to the compressor 27 → electromagnetic valve 25 → rotary joint 19 → air supply pipe 20 → each air cylinder 14, The piston rod 15 of the air cylinder 14, the annular lifting frame 17, and each push-up piece 18 are raised to raise the opening / closing nozzle 11 against the spring 10 to open the downflow hole 6 of the fixed nozzle 7. .

21 is an overflow cup, 22 is an overflow cup 2
A drainage hole 22 provided at the center of the second overflow cup 21 is provided with a hanging hook 23 that is detachably engaged with the cutout groove 13 of the pad case 12 at the peripheral edge of the overflow cup 21. , The overflow cup 22 is removed, and when washing,
The overflow cup 22 is attached to the pad case 12, and a part of the cleaning liquid such as hot water flowing down from the filling valve 4 is reversely jetted from the peripheral edge of the overflow cup 22 to make contact with the liquid contacting portion under the filling valve 4, particularly Pad case 12 and elastic pad 1
It is designed to wash 2 '.

[0008]

The conventional filling valve shown in FIGS. 4 to 6 has the following problems. That is, when the filling of non-carbonated beverages such as coffee, juice and mineral water and the filling of carbonated beverages such as coke and cider are both used, all filling valves must be replaced according to the filling liquid type. However, at this time, the opening / closing mechanism for cleaning the filling valve also needs to be replaced or removed, which requires a lot of time and labor for changing the mold, and there is a problem that the operating efficiency of the liquid filling machine is reduced.

The present invention has been made in view of the above problems, and an object thereof is to provide a filling valve of a liquid filling machine which can improve the operating efficiency of the liquid filling machine.

[0010]

In order to achieve the above object, the present invention provides a fixed nozzle fixed to a liquid tank, and an opening / closing nozzle supported by the fixed nozzle so as to be able to move up and down.
It has a vent pipe inserted in the center of the opening / closing nozzle and a fixed valve seat provided at the lower end of the opening / closing nozzle. In a filling valve of a liquid filling valve machine that opens and closes a valve composed of a lower end portion and the fixed valve seat, the vent pipe is detachably fixed to the fixed nozzle, and a cleaning valve opening / closing mechanism is provided around the fixed nozzle. For the inner cylinder part of the air cylinder that is arranged and fixed to the lower surface of the liquid tank, the outer cylinder part of the air cylinder that is inserted so that the inner cylinder part can move up and down, and for the opening / closing nozzle that is detachably attached to the outer cylinder part. It consists of a push-up piece.

[0011]

The filling valve of the liquid filling machine of the present invention is constructed as described above. (1) When filling the liquid, the liquid filling container is lifted by the lifter, and the rim of the liquid filling container is bell-shaped on the opening / closing valve. The liquid in the tank is poured into and filled in the liquid filling container by bringing the liquid into and out of the tank into contact with the liquid filling container and lifting the open / close nozzle to open the valve including the fixed valve seat and the lower part of the open / close nozzle. (2) At the time of cleaning, attach the cap to the bell-shaped part of the opening / closing valve, raise the opening / closing valve by the cleaning valve opening / closing mechanism, open the valve, and transfer the cleaning liquid to the liquid tank → valve → bell-shaped part under the opening / closing valve. Circulate through the provided screw hole-> cleaning solution tank-> solution tank to perform cleaning work. (3) When exchanging the open / close valve, remove the vent pipe from the fixed nozzle, then remove the push-up piece of the cleaning valve open / close mechanism from the outer cylinder part, and remove the open / close valve. When the on-off valve is removed, attach another on-off valve and vent pipe in the reverse order of the above.

[0012]

EXAMPLE An example of the filling valve of the liquid filling machine according to the present invention is shown in FIGS. Since the configuration of the entire liquid filling machine is substantially the same as that of the conventional liquid filling machine shown in FIG. 4,
1 to 3, only the main part of the present invention will be described. Reference numeral 51 in FIG. 1 denotes a tank, and 52 denotes a plurality of filling valves arranged on the lower surface of the liquid tank 51 along the circumferential direction. Main parts of the filling valve 52 are a fixed nozzle 54 provided with a downflow hole 53 for flowing down the liquid in the liquid tank 51, and a fixed nozzle 54.
Vent pipe 55 which is inserted into the center of the fixed nozzle 54 and is detachably fixed to the fixed nozzle 54, and has a conical fixed valve seat 55a at the lower end, and a bell-shaped lower pipe supported by the fixed nozzle 54 and vertically movable. And an opening / closing nozzle 57 having a valve body (conical concave surface) 57a formed at the center of the bell-shaped portion.

Reference numeral 59 is a C-shaped ring fitted in the annular groove of the vent pipe 55, and 60 is a holding cylinder fitted in the vent pipe 55. The C-shaped ring 59 and the holding cylinder 60 fix the vent pipe 55 to the fixed nozzle. It is detachably fixed to 54. Reference numeral 56 denotes a spring interposed between the flange portion 57b of the opening / closing nozzle 57 and the flange portion 54a of the fixed nozzle 54. The opening / closing nozzle 57 is constantly pushed downward by the spring 56, and the fixed valve seat 55a and the valve body Valve 58 consisting of 57a
Is closed.

Further, a bell-shaped portion provided in the lower portion of the opening / closing nozzle 57 has a concave annular groove portion which opens downward, and an elastic packing 59 is fitted and mounted therein. Further, a threaded hole 57c for passage of the cleaning liquid is formed in a side portion of the bell-shaped portion. The vent pipe 55 sandwiches the upper portion of the fixed nozzle 54 by the stepped portion 55b and the C-shaped ring 59 fitted in the groove 55c. 60 is C
It is a holding cylinder for the mold ring 59.

The cleaning valve opening / closing mechanisms 61 to 65 are constructed as follows.
That is, 61 is the inner cylinder of the air cylinder fixed to the lower surface of the liquid tank 51, 63 is the outer cylinder of the air cylinder, 62 is the end plate of the air cylinder, and the end plate 62 of the air cylinder is the inner cylinder of the air cylinder. The outer cylinder portion 63 of the air cylinder is screwed to the end surface of the cylinder portion 61, and the outer cylinder portion 63 of the air cylinder is inserted from the outside to the inner cylinder portion 61 and the end plate 6.
It is slidably and airtightly inserted in 2 and these 3
A chamber 64 is formed by the members 61 to 63.

Reference numeral 65 in FIGS. 1 to 3 denotes a pair of push-up pieces, and each push-up piece 65 is located in the lower portion of the outer cylinder portion 63 of the air cylinder.
The push-up pieces 65 are detachably fixed by the crotch pin 66 and the wire clip 67. The push-up pieces 65 engage the flange portion 57b of the opening / closing nozzle 57 to move the opening / closing nozzle 57 up and down. The inner cylinder portion 61 of the air cylinder engages with the flange portion 54a of the fixed nozzle 54 and is fastened together with a bolt to the lower surface of the tank 1 via a holding plate (not shown).

Reference numeral 68 denotes an air inlet (air inlet provided in the liquid tank 51) for sending compressed air to the chamber 64, and the compressed air is provided with an air passage 51a provided in the wall of the liquid tank 1 → the inner cylindrical portion 6
It is sent to the chamber 64 through an air passage 61a provided in one wall, and the outer cylinder portion 63 is raised. 68 '
Is an air inlet when it is difficult to provide an air passage in the liquid tank 51, and this air inlet 68 'is shown for reference.

Next, the operation of the filling valve 52 of the liquid filling machine will be specifically described. (1) At the time of filling the liquid, the liquid filling container 70 is well-known.
(See the chain double-dashed line in FIG. 1) is lifted by the lifter to bring the rim of the liquid filling container 70 into contact with the pad 59, and thereafter the liquid filling container 70 is further raised to open / close the nozzle 5.
7 is lifted against the spring 56, the valve 58 is opened, and the liquid in the tank 51 is injected and filled into the liquid filling container 70 through the downflow hole 53 of the fixed nozzle 54. Further, as the lifter descends, the opening / closing nozzle 57 is descended by the spring 56, and the valve 58 is closed. (2) At the time of cleaning, the cap 71 is attached to the bell-shaped portion of the opening / closing valve 57 (see the alternate long and short dash line in FIG. 1), and then compressed air is supplied to the air inlet 68 → air passage 51a → air passage 61a →
The outer cylinder portion 63 of the air cylinder is sent to the chamber 64, and the outer cylinder portion 63 of the air cylinder is raised.
7b, the opening / closing nozzle 57 is lifted against the spring 56, and the valve 58 is opened.

Then, the cleaning liquid is circulated through the liquid tank 51 → the downflow hole 53 of the fixed nozzle 54 → the valve 58 → the screw hole 57c → the cleaning liquid tank (not shown) → the liquid tank 51 to perform the cleaning operation. When the cleaning work is completed, the air in the chamber 64 is evacuated, the opening / closing nozzle 57 is lowered by the spring 56, and the valve 58 is closed. (3) When replacing the opening / closing nozzle 57, the holding cylinder 60 and C
The mold ring 59 is removed from the vent pipe 55, the vent pipe 55 is removed from the fixed nozzle 54, the wire clip 67 is then removed from the bifurcated pin 66, and the bifurcated pin 66 is pulled out from the outer cylinder portion 63 and each push-up piece 65, The push-up pieces 65 are removed from the outer cylinder portion 63, and the opening / closing valve 57 is removed from the outer cylinder portion 63. When the opening / closing valve 57 is removed, another opening / closing valve 57 and the vent pipe 55 are attached in the reverse order of the above.

The cleaning valve opening / closing mechanisms 61 to 65 are also used when the temperature of the liquid tank or valve other than cleaning is raised by hot water. In the present embodiment, the holding cylinder 60 and the C-shaped ring 59
Since the vent pipe 55 is removably attached to the fixed nozzle 54 by the above, there is an advantage that it can be easily applied to the modification of the filling valve of the existing device.

[0021]

As described above, in the filling valve of the liquid filling machine of the present invention, when exchanging the opening / closing valve, the vent pipe is removed from the fixed nozzle, and then the push-up piece of the cleaning valve opening / closing mechanism is removed from the outer cylinder portion, Remove the open / close valve. When the on-off valve is removed, another on-off valve and vent pipe are installed in the reverse order of the above.Therefore, it is not necessary to replace or remove the opening / closing mechanism for cleaning the filling valve as in the conventional filling valve. The time and labor required for the operation can be saved, and the operation efficiency of the liquid filling machine can be improved.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of a filling valve of a liquid filling machine of the present invention.

2 is a cross-sectional plan view taken along the line AA of FIG.

FIG. 3 is a perspective view showing a bifurcated pin and a wire clip of the filling valve.

FIG. 4 is a vertical cross-sectional side view showing a conventional liquid filling machine.

FIG. 5 is a vertical cross-sectional side view showing a filling valve of the liquid filling machine.

FIG. 6 is a plan view showing an annular lifting frame of the liquid filling machine.

[Explanation of symbols]

 51 Liquid Tank 52 Filling Valve 54 Fixed Nozzle 55 Vent Pipe 57 Opening / Closing Nozzle 57b Flange 58 Valve 61-65 Cleaning Valve Opening / Closing Mechanism 61 Inner Cylinder 62 End Plate 63 Outer Cylinder 65 Push-up Piece

Claims (1)

[Claims] 1. A fixed nozzle fixed to a liquid tank, an open / close nozzle supported by the fixed nozzle so as to be able to move up and down, a vent pipe inserted in the center of the open / close nozzle, and a lower end portion of the vent pipe. In a filling valve of a liquid filling valve machine, which has a fixed valve seat, raises and lowers the opening / closing nozzle together with a liquid filling container that moves up and down by a lifter, and opens and closes a valve composed of the lower end of the opening / closing nozzle and the fixed valve seat. An inner cylinder part of an air cylinder in which the vent pipe is detachably fixed to the fixed nozzle, and a cleaning valve opening / closing mechanism is arranged around the fixed nozzle and fixed to the lower surface of the liquid tank. A filling valve for a liquid filling machine, comprising an outer cylinder part of an air cylinder that is inserted so as to be able to move up and down, and an open / close nozzle push-up piece that is detachably attached to the outer cylinder part.