JP2523030Y2 - Dimension adjustment device for filling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a filling device for filling a filling liquid into a container, and more specifically, the height of a residual space remaining in the container after filling, that is, the inside of the container. The present invention relates to an empty size adjusting device of a filling device which adjusts an empty size of a filling device.

2. Description of the Related Art Conventionally, as a filling device, a filling liquid tank for storing a filling liquid, and a filling liquid tank which is provided in the filling liquid tank so as to be able to move up and down and open a liquid valve when ascending to fill the container with the filling liquid. A pipe, a bottle port packing provided in the liquid injection pipe, which is in close contact with the mouth of the container to seal the container, and an exhaust for discharging air in the container to the outside when the container is filled with the filling liquid. One with a pipe is known.

In this type of filling device, the empty space in the container after filling is such that at the moment when the container pushes up the liquid injection pipe via the bottle opening packing and opens the liquid valve, the upper end opening of the container and the exhaust pipe Is obtained by the height difference from the opening in the container. Therefore, when the type of container is changed, the empty size can be changed and adjusted by vertically displacing the bottle port packing with respect to the liquid injection pipe.

In other words, the bottle opening packing moves up and down integrally with the injection pipe during normal filling operation, and it is necessary to displace the bottle opening packing up and down with respect to the injection pipe during empty size adjustment. An apparatus using a worm gear is known as an apparatus (Japanese Patent Application Laid-Open No. 53-17487).

"Problem to be solved by the invention" However, when a worm gear is used, its structure is complicated and expensive, and there is an advantage that the height position of the bottle opening packing can be freely changed, but the liquid level height is set in advance. When there are a plurality of specified types, there is a disadvantage that the operation of adjusting the height position of the bottle opening packing becomes complicated.

Means for Solving the Problems In view of such circumstances, the present invention provides, in the above-described filling apparatus, a cylindrical member provided on the outer periphery of the liquid injection pipe so as to be vertically movable and rotatable, and the bottle is provided on the cylindrical member. A mouth packing is attached, and a plurality of engaging recesses are formed at predetermined intervals vertically on one of the outer periphery of the liquid injection pipe and the inner periphery of the cylindrical member, and the other is formed on one of the engaging recesses. An engaging projection that is selectively engaged is provided, and the engagement with the engaging projection is released at a required position in the circumferential direction of the engaging recess to allow the engaging projection to move up and down. A non-engaging portion is formed.

[Operation] According to the above configuration, if the cylindrical member is rotated to position the engaging convex portion at the non-engaging portion, the cylindrical member and the bottle port packing are moved up and down with respect to the liquid injection pipe to empty. The dimensions can be changed, and if the cylindrical member is rotated to selectively engage the engaging convex portion with any one of the engaging concave portions, the cylindrical member and the bottle port packing are connected to the liquid injection pipe. They can be connected together.

As described above, in the sizing device of the present invention, it is sufficient to provide the cylindrical member, the plurality of engaging concave portions, the engaging convex portion engaged with the cylindrical member, and the non-engaging portion. The worm gear can be manufactured at a lower cost as compared with the conventional one, and when the engaging projection is engaged with any one of the plurality of engaging recesses, a required vacant size corresponding thereto can be obtained. In comparison with a case where a required blank size is obtained while measuring the size, the work of changing the blank size becomes easier.

[Embodiment] The present invention will be described below with reference to an illustrated embodiment. In FIG. 1, a rotary filling machine is provided with a rotary table 1 which is rotated in one direction by a motor (not shown), and is provided on the rotary table 1 and not shown. A filling liquid tank 2 which is moved up and down with respect to the rotary table 1 by an elevating mechanism is provided.

Immediately below each filling nozzle 3, there is provided an elevating table 4 which is provided on the rotating table 1 so as to be able to move up and down and elevates the container. A cleaning cup 5 for cleaning each filling nozzle 3 is provided at a substantially intermediate height position.

Each of the cleaning cups 6 is reciprocally swung simultaneously by a swinging mechanism 6 provided on the turntable 1. During normal filling, the washing cup 6 is radially inward of the turntable 1 from a position below the filling nozzle 3. However, during cleaning, it moves forward and is positioned immediately below each of the filling nozzles 3. In this state, by lowering the filling liquid tank 2 by the above-described lifting mechanism (not shown), each washing cup 5 can be brought into contact with each filling nozzle 3 and all the filling nozzles 3 can be opened simultaneously. ing.

As shown in FIG. 2, each of the filling nozzles 3 has a circumferentially shaped valve housing 7 fixed to the filling liquid tank 2 vertically downward, and a liquid is injected into the shaft of each valve housing 7. The pipe 8 is provided so as to be able to move up and down while maintaining liquid tightness. An exhaust pipe 10 fixed to the bottom wall of the filling liquid tank 2 penetrates through the injection pipe 8 through a bracket 9, and the inner peripheral surface of the injection pipe 8 and the exhaust pipe 10
A gap with the outer peripheral surface is defined as a filling liquid passage 11, and an inside of the exhaust pipe 10 is defined as an exhaust passage 12.

At the lower end of the exhaust pipe 10, a pipe 13 having a diameter larger than that of the exhaust pipe 10 is fixed as shown in an enlarged view in FIG. The lower end is sealed by a plug member 14. The lower portion of the filling liquid passage 11 communicates with the outside through an opening 13a formed in the pipe 13, and the lower portion of the exhaust passage 12 also has an opening 10a formed in a side portion of the exhaust pipe 10 and an opening 13b formed in the pipe 13. Is communicated to the outside through

Further, the lower small diameter portion 8a of the liquid injection pipe 8 is slidably fitted on the outer periphery of the pipe 13, and is elastically mounted between the liquid injection pipe 8 and the valve housing 7 to form a spring 16 (first (Fig.)
Thus, the liquid injection pipe 8 is urged downward, and the lower end 8b of the liquid injection pipe 8 is normally seated on a valve seat 14a formed on the plug member 14.

Accordingly, a liquid valve 17 for opening and closing the filling liquid passage 11 and an air valve 18 for opening and closing the exhaust passage 12 are formed by the lower end portion 8b of the liquid injection pipe 8 and the valve seat 14a of the plug member 14. When the lower end 8b is seated on the valve seat 14a, the valves close the passages 11 and 12, respectively.

As shown in FIG. 2, a negative pressure generating valve 20 is provided at an upper end of the exhaust pipe 10, and the negative pressure generating valve 20 is slidably tightly fitted to an upper part of the exhaust pipe 10. A lifting rod 21 and a connecting pin 22 for connecting the lifting rod 21 to the liquid injection pipe 8 are provided. A communication passage 23 is formed in the shaft of the lifting rod 21. The lower end of the communication passage 23 is always in communication with the exhaust passage 12, and the upper end opening is where the liquid injection pipe 8 is located at the lower end. When the liquid valve 17 and the air valve 18 are closed, the exhaust pipe 10 is hermetically sealed.

The upper end opening of the communication passage 23 is provided with a predetermined amount of the lifting rod 21 which rises integrally with the liquid injection pipe 8 when the liquid injection pipe 8 is raised and the liquid valve 17 and the air valve 18 are opened. After a negative pressure is generated in the exhaust passage 12 due to the rise, it is communicated with the upper space in the filling liquid tank 2.

The generation of the negative pressure in the upper part of the exhaust passage 12 is as follows.
The stable state of the filling liquid remaining in the exhaust passage 12 at the time of the previous filling is broken, and in the filling liquid remaining in the exhaust passage 12, the air discharged along with the filling of the filling liquid into the container is removed. This contributes to forming a discharge passage, thereby facilitating the discharge of air from the inside of the container and enabling quick filling.

However, a cylindrical member 30 surrounding the liquid injection pipe 8 is provided so as to be vertically movable and rotatable with respect to the liquid injection pipe 8, and is provided at the lower end of the cylindrical member 30 at the mouth of the container 31. A rubber bottle packing 32 is provided to abut and seal the container 31.

As shown in FIGS. 2 and 4, a plurality of engaging recesses 30a are formed vertically at predetermined intervals on the inner peripheral surface of the cylindrical member 30, and the outer peripheral surface of the liquid injection pipe 8 is formed on the inner peripheral surface. By providing an engagement projection 8c that is selectively engaged with any of the engagement recesses 30a and engaging the engagement projection 8c with any of the engagement recesses 30a, The tubular member 30 is integrally connected in the axial direction.

Further, the cylindrical member 30 has a non-engagement portion that releases the engagement with the engagement protrusion 8c at a required position in the circumferential direction of the engagement recess 30a and allows the engagement protrusion 8c to move up and down. 30b is formed,
By positioning the engaging projection 8c at the non-engaging portion 30b, the cylindrical member 30 and the bottle opening packing 32 can be moved in the axial direction with respect to the liquid injection pipe 8 so that the empty size can be adjusted. ing. A spring 33 is elastically mounted between the liquid injection pipe 8 and the cylindrical member 30, and the elastic force of the spring 33 constantly biases the cylindrical member 30 downward with respect to the liquid injection pipe 8. ing.

Next, as shown in FIG.
A swing member 36 is provided on the outer periphery of the upper part of the valve housing. The swing member 36 is supported by a support plate 37 attached to the filling liquid tank 2 so that the swing member 36 reciprocates around the axis of the valve housing 7. You can swing.

A guide rod 38 disposed in the vertical direction is attached to the tip of the swing member 36, and a slider 39 provided on the guide rod 38 so as to be able to move up and down and a connecting arm 40 connected to the slider 39 are provided.
The tubular member 30 is connected to be able to move up and down via the. Therefore, if the guide rod 38 and the swing member 36 are swung, the tubular member 30 can be rotated accordingly.

A guide cone 42 for centering the container 31 is provided on the outer periphery of the cylindrical member 30 so as to be able to move up and down. The guide cone 42 is provided below the slider 39 with a guide rod.
The slider 38 is connected via a connecting arm 44 to a slider 43 which can be moved up and down. The guide cone 42 is usually
Due to its own weight, the slider 43 is located at a lower end position where it comes into contact with a stopper 45 provided at the lower end of the guide rod 38.

As shown in FIG. 5, the swing member 36 has a notch 36a formed at a required position in the circumferential direction.
A stopper pin 47 fixed to the valve housing 7 is provided therein.
And the rocking member 36 can be reciprocally rocked within a range between a position where the stopper pin 47 is engaged with one end of the notch 36a and a position where the stopper pin 47 is engaged with the other end. Like that.

The position where the stopper pin 47 engages with one end of the notch 36a is matched with the position where the engaging protrusion 8c engages with the engaging recess 30a. The position of engagement with the other end of 36a is made to coincide with the position where the engagement projection 8c becomes the non-engagement portion 30b. In order to fix the swing member 36 at each swing end position, a swing member
The ball 48 provided on the 36 and urged inward in the radial direction is engaged with engaging portions 7a and 7b formed at required positions of the valve housing 7.

In the above-described configuration, when the filling liquid tank 2 and each filling nozzle 3 are integrally rotated by the rotation of the rotary table 1 and the container 31 is moved up with the rise of the elevating table 4, the container 31 is moved to its upper end. The portion is centered by the guide cone 42 of each filling nozzle 3 and pressed against the bottle opening packing 32 to seal the inside of the container 31.

When the container 31 is further raised from this state, the liquid injection pipe 8 and the cylindrical member 30 are integrally raised against the resilience of the spring 16, so that the lower end portion 8b of the liquid injection pipe 8 is The liquid valve 17 and the air valve 18 are opened after being separated from the valve seat 14a,
The negative pressure generating valve 20 is opened slightly later than this.

As a result, the filling of the filling liquid into the container 31 is started from the opening 13a of the pipe 13, and the air in the container 31 generates a negative pressure through the exhaust passage 12 with the filling of the filling liquid into the container 31. The liquid is discharged from the valve 20 into the filling liquid tank 2.

When the container 31 is filled with the filling liquid and the inside of the exhaust passage 12 is also filled with the filling liquid, the filling of the filling liquid is completed. In this state, the container 31 is lowered and injected by the elastic resilience of the spring 16. The lower end 8b of the pipe 8 is seated on the valve seat 14a. As a result, the liquid valve 17, the air valve 18, and the negative pressure generating valve 20 are closed, and the filled container 31 is carried out of the turntable 1.

At this time, the empty size in the container 31 is the opening 10 of the exhaust passage 12 at the moment when the container 31 is lowered and the liquid valve 17 is closed.
It is obtained by the height difference between a and the bottle opening packing 32.

Next, when the empty size is changed by changing the type of the container 31, the guide rods 38 of all the filling nozzles 3 are changed.
Then, the swinging member 36 is rotated to position the engaging convex portion 8c of the liquid injection pipe 8 at the non-engaging portion 30b of the tubular member 30 to engage the engaging convex portion 8c with the engaging concave portion 30a. Release. As a result, the tubular member 30 is lowered by the spring 33, and the slider 39 integrated therewith is positioned at the lower end position where the slider 39 contacts the lower slider 43.

In this state, each of the cleaning cups 5 is moved forward by the swing mechanism 6 to be positioned immediately below each of the filling nozzles 3, and then the filling liquid tank 2 is lowered by an elevating mechanism (not shown). As a result, each cleaning cup 5 raises the cylindrical member 30 with respect to the liquid injection pipe 8 via the guide cone 42. When the cylindrical member 30 is positioned at a predetermined height, the filling liquid tank 2 is lowered. Stopped.

Next, if the guide rod 38 and the swinging member 36 are returned to the original positions by swinging, the engaging projections 8c can be engaged with the engaging recesses 30a having a predetermined height. Dimensions can be obtained.

In the above embodiment, the guide rod 38 and the swing member
Although the swing of 36 can be performed manually, it is needless to say that the swing can be performed by appropriate driving means. If the washing cup 5 and the filling liquid tank 2 are not provided with an elevating mechanism, the tubular member 30 may be manually moved up and down. In this case, the guide rod 38 shows a predetermined empty size. A scale 49 can be provided.

"Effects of the Invention" As described above, in the present invention, the tubular member, the plurality of engagement recesses and non-engagement portions, and the engagement protrusions to be engaged with the engagement recesses may be provided. Since it can be manufactured at a lower cost than a conventional device using a worm gear, and if the above-mentioned engaging projection is engaged with any one of the plurality of engaging recesses, a required blank size corresponding thereto can be obtained. As compared with the case where a required empty size is obtained while measuring the size by rotating the worm gear, the effect that the work of changing the empty size is facilitated is obtained.

[Brief description of the drawings]

FIG. 1 is a schematic structural view showing an embodiment of the present invention, FIG. 2 is a cross-sectional view showing a main part of FIG. 1, FIG. 3 is an enlarged cross-sectional view of a main part of FIG. FIG. 5 is an exploded perspective view showing a main part of FIG. 2, and FIG. 5 is a sectional view taken along line VV of FIG. 2 Filling liquid tank 3 Filling nozzle 7 Valve housing 8 Filling pipe 8a Engagement protrusion 10 Exhaust pipe 11 Filling liquid passage 12 Exhaust passage 17 ... Liquid valve, 30 ... Cylindrical member 30a ... Engaging concave part, 30b ... Non-engaging part 31 ... Container, 32 ... Bottle opening packing

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazuo Mogami 58 Koshizawa Ozuda Honmachi, Kanazawa-shi, Ishikawa Shibuya Kogyo Co., Ltd. (JP, U)

Claims (1)

(57) [Scope of request for utility model registration] 1. A filling liquid tank for storing a filling liquid, a filling pipe which is provided in the filling liquid tank so as to be movable up and down, and which opens a liquid valve when filling to fill the container with the filling liquid. Filling provided with a pipe, a bottle opening packing which is tightly attached to the mouth of the container to seal the container, and an exhaust pipe which discharges the air in the container to the outside when filling the container with the filling liquid. In the apparatus, a cylindrical member is provided on the outer periphery of the liquid injection pipe so as to be vertically movable and rotatable, and the bottle port packing is attached to the cylindrical member, and one of the outer periphery of the liquid injection pipe and the inner periphery of the cylindrical member is provided. On one side, a plurality of engagement recesses are formed at predetermined intervals above and below, and on the other side, an engagement projection is provided which is selectively engaged with any one of the engagement recesses. At the required position in the circumferential direction, the engagement with the engagement An empty size adjusting device for a filling device, wherein a non-engaging portion that allows elevation of a convex portion is formed.