JP3516026B2 - Filling device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filling device for quantitatively filling a filling liquid such as a shampoo liquid or a rinse liquid into a container (bottle).

[0002]

2. Description of the Related Art Shampoo and rinse manufacturing processes include a filling process in which individual filling liquids such as shampoo liquid and rinse liquid supplied from a manufacturing line to a pressure tank are filled into individual containers (bottles). Generally, a filling device provided with a piston pump type measuring device is used.

In this filling device, a filling liquid pressurized in a pressure tank is weighed by a weighing device 1 shown in FIGS. 9 (A) and 9 (B), and then introduced into a filling nozzle 2 to form a container ( Bottle)
The filling liquid is filled into the inside, and the measuring device 1 is
It is installed for each filling nozzle 2 and constitutes a filling head of the filling device.

The weighing device 1 includes a piston 4 in a cylinder 3.
Are housed so as to be reciprocally movable. As shown in FIG. 9 (A), this metering device 1 has a cock rod 5 installed on the liquid supply side, and a piston 4 is moved back (down) to make a negative pressure in the cylinder 6, thereby A predetermined amount of filling liquid is sucked into the cylinder 6 through the liquid supply port 7 of the cock rod 5 and measured. Furthermore, this weighing device 1 is shown in FIG.
As shown in (B), the cock rod 5 is installed on the filling side, and the piston 4 is moved forward (raised) to move the cylinder 6
The filling liquid therein is guided to the filling nozzle 2 through the filling port 8 of the cock rod 5.

[0005]

However, in the metering device 1 of the above-described filling device, the piston 4 is driven by a drive system that employs a cam. However, the filling device becomes complicated.

Further, in the metering device 1 of the filling device, the filling liquid contacts the inner wall surface of the cylinder 3 and the front and side faces of the piston 4 in the filling process of the filling nozzle 2, so that in the cleaning process of the filling device. It is necessary to disassemble the weighing device 1 and clean the inner wall surface of the cylinder 3 and the front and side surfaces of the piston 4.

The object of the present invention has been made in consideration of the above-mentioned circumstances, and it is possible to obtain good filling accuracy with a simple structure and to carry out washing in a short time without disassembling the weighing device. To provide a device.

[0008]

According to a first aspect of the present invention, there is provided a filling device in which a filling liquid stored in a tank is measured by a measuring device and then introduced into a filling nozzle to fill the liquid. An expandable bag is arranged in the cavity of the apparatus body having a portion, and the bag body is inflated until it comes into contact with the inner surface of the cavity of the apparatus body by pumping a filling liquid into the bag. Then, the filling liquid is pressure-filled into the bag body and weighed, and the inside of the cavity of the apparatus body is pressurized or the bag body is contracted by the contracting force of the bag body itself, and the bag body is pressurized. is configured to direct the filled filling liquid to the filling nozzle, the said device body, tang, bag
The bag body, which is installed and enclosed in the
It is configured such that it can be worn and locked .

[0009]

[0010]

[0011]

[0012]

[0013]

[0014]

[0015]

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an overall front view showing a first embodiment of a filling device according to the present invention. Figure 2
It is a longitudinal cross-sectional view which shows the weighing device of FIG. FIG. 3 (A) shows
FIG. 3 is a view on arrow IIIA in FIG. 2, and FIG. 3 (B) is FIG. 3 (A).
IIIB arrow view of FIG. 3C is shown in FIG.
FIG. 3D is a sectional view taken along the line C-IIIC, and FIG.
It is sectional drawing which follows the IIID-IIID line of (A). Figure 4
FIG. 3 is an operation diagram showing an operation of the weighing device of FIG. 2. Figure 5
3 is a flowchart showing a filling process of the weighing device of FIG. 2. FIG. 6 is a flowchart showing a cleaning process of the weighing device of FIG.

As shown in FIG. 1, the filling device 10 includes a rotary table 12 rotatably mounted on a gantry 11, and
It is configured to have a filling station 13 that is fixed to a gantry 11 and can rotate in synchronization with the rotary table 12, and a plurality of filling nozzles 1 are provided on the outer peripheral side of the filling station 13.
4 are installed. A plurality of bottle carriers 16 holding bottles 15 are placed on the rotary table 12.

A liquid supply pipe 18 is connected to the filling station 13 via a rotary joint 17, and the liquid supply pipe 18 stores a liquid filling tank such as shampoo liquid or rinse liquid (not shown). Connected to.
A pressure tank 19 is arranged in the liquid supply pipe 18 to pressurize the filling liquid and the cleaning liquid flowing in the liquid supply pipe 18.

Further, on the outer peripheral side of the filling station 13, a weighing device 20 is installed for each filling nozzle 14.
The metering device 20 measures the filling liquid supplied from the liquid supply pipe 18 to the amount of liquid to be filled in one bottle 15,
It leads to the filling nozzle 14. This filling nozzle 14
The filling liquid guided to (1) is filled into the bottle 15 placed on the rotary table 12.

A cock rod 23 having a liquid supply port 21 (see FIG. 7A) and a filling port 22 (see FIG. 7B) is installed between the measuring device 20 and the filling nozzle 14. . By switching the cock rod 23 to the liquid supply side, the filling liquid in the liquid supply pipe 18 can be introduced into the measuring device 20 at the liquid supply port 21.
By switching to the filling side, the filling liquid in the measuring device 20 can be supplied to the filling nozzle 14 at the filling port 22.

As shown in FIG. 1, the cock rod 23 is switched by the cock rod operating rods 24 and 25, which are installed at two opposing positions of the filling device 10. That is, with the turning of the filling station 13, the cock rod 23 is switched to the supply side by the cock rod operation rod 24 to supply the filling liquid into the measuring device 20, and the cock rod operation rod 25 moves the cock rod 23. By switching to the filling side, the filling liquid in the measuring device 20 is guided to the filling nozzle 14, and the filling liquid is filled into the bottle 15 from the filling nozzle 14. Reference numeral 26 in FIG. 1 indicates a drainage recovery gutter.

As shown in FIG. 2, the measuring device 20 includes a cylinder 30, a bag 31 as a bag body, a core 32 as a bag body stopper, and valves 33A, 33.
An air supply / discharge system 34 including B, 33C, and 33D is provided.

The cylinder 30 is formed in a cylindrical shape, the cylinder bottom 35 and the cylinder top portion 36 constitute the main body of the apparatus, and the cylinder chamber 45 as a hollow portion is airtightly constituted. Further, the cylinder 30 has a mounting bolt 39 inserted between the fixing plate 37 and the adapter 38 and a nut 40.
Are screwed together and attached to the adapter 38.

The cylinder bottom 35 has an inner surface 35A formed into a hemispherical surface and is provided slidably in the cylinder 30 in the axial direction of the cylinder 30. Further, an air supply / discharge passage 41 is provided in the cylinder bottom 35. It is drilled through. The air supply / discharge passage 41 is opened in the cylinder chamber 45. The cylinder bottom 35 is supported by a liquid supply amount adjustment stopper 42 as an adjusting member screwed to a fixed plate 37, and the liquid supply amount adjustment stopper 42 is moved in the axial direction of the cylinder 30 with respect to the fixed plate 37. As a result, the cylinder bottom 35 slides in the axial direction of the cylinder 30.

The cylinder top portion 36 is fitted on the tip of the cylinder 30, and the inner surface 36A is formed in a hemispherical shape. The open end of the bag 31 is sandwiched between the cylinder top 36 and the top plate 43, and the bag 31 passes through the opening 44 of the cylinder top 36 and is disposed in the cylinder chamber 45. Further, an air discharge passage 46 that opens into the cylinder chamber 45 is formed through the cylinder top portion 36 so as to penetrate therethrough. The internal volume of the cylinder chamber 45 can be changed by adjusting the cylinder bottom 35 by the liquid supply amount adjusting stopper 42, and is set to a predetermined value.

The bag 31 is made of a flexible material such as plastic or rubber so that it can expand and contract. The bag 31 is configured to be inflatable until it comes into contact with the inner wall surface 47 of the cylinder 30, the inner surface 35A of the cylinder bottom 35, and the inner surface 36A of the cylinder top portion 36 by reducing the pressure in the cylinder chamber 45 of the cylinder 30 ( Figure 4
(A)), by pressurizing the inside of the cylinder chamber 45,
It is configured to be contractable until it comes into close contact with the core 32 (Fig. 4).
(B)).

Further, in the bag 31, an adapter 38 is provided.
Through the liquid supply passage 48 and the liquid supply opening 49 of the top plate 43,
The filling liquid or the cleaning medium in the liquid supply pipe 18 can be pumped. When the bag 31 is expanded, the filling liquid is pressurized and filled in the bag 31 by a predetermined amount, and the filling liquid is measured. Also,
When the bag 31 contracts as described above, the filling liquid or the cleaning medium in the bag 31 is guided to the filling nozzle 14. Above bag 3
The pressure filling amount of the filling liquid into 1 (the above-mentioned predetermined amount) is the filling amount into one bottle 15, and the liquid supply amount adjusting stopper 42
The internal volume of the cylinder chamber 45 is changed by the
It is adjusted by changing the expansion volume of.

As shown in FIGS. 2 and 3, the core 32 has a flat core 50 and a sphere 51 fixed to the tip of the core 50 by welding or the like. This core 32 is shown in FIG.
As shown in (A) and (B), the base end of the core plate 50 is fixed to the inner surface of the liquid supply opening 49 of the top plate 43, and the bag 3
1, the core 32 closely contacts and locks the bag 31 when the bag 31 is contracted, and prevents the bag 31 from jumping out of the cylinder chamber 45 into the liquid supply passage 48 of the adapter 38. .

Guide grooves 52 are formed on the front and back surfaces of the core plate 50.
Are formed (FIG. 3 (C)), and a plurality of guide holes 53 are formed in the sphere 51 so as to be orthogonal to each other at the central position of the sphere 51 and penetrate therethrough (FIG. 3 (A)). These guide grooves 52
The guide hole 53 and the guide hole 53 are communicated with each other by a communication hole 54 formed in the core plate 50, as shown in FIG. The guide groove 52, the guide hole 53, and the communication hole 54 have a function of completely supplying the filling liquid or the cleaning medium in the bag 31 into the liquid supply passage 48 when the bag 31 is contracted.

As shown in FIG. 2, the air supply / exhaust system 34 has a lubricant tank 56 in which a lubricant 55 is stored, and a valve 3 provided in the lubricant tank 56.
3A and 33B are connected, and the lubricant tank 56 is connected to the air supply / discharge passage 41 of the cylinder bottom 35 by a connecting hose 59.
And the valves 33C and 33D are connected to the air discharge passage 46 of the cylinder top 36. The valves 33A and 33B are selectively opened and closed.

By fully opening the valve 33A,
The air in the cylinder chamber 45 is sucked through the lubricant tank 56, the pressure in the cylinder chamber 45 is reduced, and the bag 31 is inflated. Further, by fully opening the valve 33B, air is supplied into the cylinder chamber 45 together with the lubricant 55 in the lubricant tank 56 to contract the bag 31, and the inner wall surface 47 of the cylinder 30 and the cylinder bottom 3 are also contracted.
The lubricant 55 is attached to the inner surface 35A of the cylinder 5 and the inner surface 36A of the cylinder top 36. in this way,
By attaching the lubricant 55 to the inner wall surface 47 of the cylinder 30, etc., the inner wall surface 47 of the cylinder 30, the inner surface 35A of the cylinder bottom 35, and the inner surface 36A of the cylinder top 36.
The bag 31 can be easily detached from the bag 31, and the bag 31 can be smoothly expanded and contracted.

The valves 33C and 33D are fully opened during the liquid supply process for inflating the bag 31 in the filling process of supplying the filling liquid to the measuring device 20, measuring it, and guiding it to the filling nozzle 14, thereby contracting the bag 31. In the filling process of introducing the filling liquid to the filling nozzle 14, for example, a half-open operation is performed (FIG. 5).
At the beginning of the liquid supply process, the bag 31 inflates as shown by the chain double-dashed line in FIG. 2 to come into contact with the inner wall surface 47 of the cylinder 30 and divide the cylinder chamber 45 into two. Air in the area on the side of the cylinder top 36 is discharged through the air discharge passage 46 to promote the expansion of the bag 31.
In the filling process, the valves 33C and 33D are not fully opened, for example, half-opened to suppress the outflow of the lubricant 55 and the air from the air supply / discharge passage 41 while the excess air accompanying the contraction of the bag 31 is discharged. Is discharged from the air discharge passage 46.

Further, the valves 33C and 33D are
In the cleaning process in which a cleaning medium such as a cleaning liquid is supplied to the metering device 20 and the cleaning medium is guided to the filling nozzle 14, it is operated in the fully closed state to prevent the air in the cylinder chamber 45 from being discharged, and the valve 33A is closed. The expansion of the bag 31 at the time of half-opening is suppressed to a small extent, and the bag 31 is held in a substantially contracted state as shown in FIG. 4 (C).

Next, the operation of the filling process and the cleaning process of the weighing device 20 will be described with reference to FIGS. (A) Filling Process (FIGS. 4 and 5) Liquid Supply Process In the filling process, the filling liquid in the filling liquid tank (not shown) is pressurized by the pressure tank 19 through the liquid supply pipe 18 and filled. It reaches the cock rod 23 of the device 10. In this state, as shown in FIG. 5, the valves 33A, 33C and 33
By fully opening D and switching the cock rod 23 to the liquid supply side, the inside of the cylinder chamber 45 is decompressed to reduce the bag 31.
Is inflated and the filling liquid is pumped into the bag 31. As shown in FIG. 4 (A), the bag 31 expands until it comes into contact with the inner wall surface 47 of the cylinder 30, the inner surface 35A of the cylinder bottom 35, and the inner surface 36A of the cylinder top 36, and the filling liquid fills the bag 31. It is filled with liquid and weighed.

In the liquid supply process, as the bag 31 expands, the air in the cylinder chamber 45 is discharged through the air supply / exhaust passage 41 and the valve 33A and the air supply / exhaust passage 46 and the valves 33C and 33D. Then discharged.
The liquid supply process is ended by fully closing the valves 33A, 33C and 33D.

In the filling process in which the filling liquid measured by the filling process metering device 20 is guided to the filling nozzle 14, the cock rod 23 is switched to the filling side. Next, fully open the valve 33B to open the valve 33C.
And 33D are half-opened to introduce air together with the lubricant 55 into the cylinder chamber 45 through the air supply / discharge passage 41 to pressurize the cylinder chamber 45. This allows the bag 3
1 contracts, the filling liquid in the bag 31 is guided to the filling nozzle 14, and the bag 31 is crushed until it comes into close contact with the core 32, as shown in FIG. The liquid is completely guided to the filling nozzle 14 through the guide groove 52 and the guide hole 53. The filling liquid guided to the filling nozzle 14 is filled into the bottle 15 placed on the rotary table 12 of the filling device 10.

In this filling process, the surplus air in the cylinder chamber 45 is discharged through the cylinder discharge passage 46, but since the valves 33C and 33D are half-opened, the lubrication adhered to the inner wall surface 47 of the cylinder 30 and the like. The outflow of the agent 55 is suppressed. The lubricant 55 that has flown out is temporarily stored in the lubricant receiver 57 and returned to the lubricant tank 56 via the lubricant hose 58.

(B) Washing Step (FIGS. 4 and 6) Supplying Process of Washing Water, etc. In the above-mentioned washing process, a washing medium such as a washing liquid or steam is supplied to the feed pipe 18. In this state, as shown in FIG.
While fully closing the valves 33C and 33D, the valve 33
A is slightly opened to switch the cock rod 23 to the liquid supply side. As a result, the air in the cylinder chamber 45 is less likely to be discharged, and the bag 31 is slightly inflated but held in a substantially contracted state as shown in FIG. A cleaning medium such as cleaning water or steam is supplied via 48.

After supplying washing water or the like into the bag 31, the valve 33A is closed. The bag 31 in a substantially contracted state is cleaned by supplying cleaning water and sterilized by supplying steam.

Switching the waste liquid process cock rod 23 to the filling side, the valve 33C
The valve 33B is opened while the valves 33D and 33D are fully closed. As a result, the inside of the cylinder chamber 45 is pressurized and the bag 31 contracts until it comes into close contact with the core 32, drains the cleaning water in the bag 31 after cleaning, and discharges the steam after sterilization.

The cleaning water after cleaning and the steam after sterilization are recovered through the cleaning nozzle 14 while being cleaned and sterilized by the cleaning liquid draining gutter 26 shown in FIG. The inside of the bag 31 is completely cleaned and sterilized by repeating the process of supplying the cleaning water and the like and the process of discharging the waste water.

Next, the effect of the first embodiment will be described. According to the above-described embodiment, by operating the valves 33A, 33B, 33C and 33D of the air supply / exhaust system 34 to reduce the pressure in the cylinder chamber 45 of the cylinder 30 of the weighing device 20, the bag 31 is inflated. , The filling liquid is pressure-fed into the bag 31 to be measured, and the pressure in the cylinder chamber 45 causes the bag 31 to contract, so that the bag 3
Since the filling liquid in 1 is guided to the filling nozzle 14, an air supply / discharge system 34 for decompressing and pressurizing the inside of the cylinder chamber 45 is installed in the measuring device 20, which is sufficient.
As shown in (FIG. 9), since the complicated driving means for driving the piston 4 is not required, the filling device 10 can have a simple structure.

The cylinder chamber 4 in the weighing device 20
At the time of decompressing the inside of the bag 5, the bag 31 moves to the inner wall surface 4 of the cylinder 30.
7, the inner surface 35A of the cylinder bottom 35 and the inner surface 36A of the cylinder top portion 36 are inflated until they come into contact with each other, and the inflated bag 31 is filled with the filling liquid under pressure. If the inner volume is set to a predetermined value, the filling liquid to be supplied into the bag 31 will be accurately measured, and good filling accuracy can be obtained.

Further, in the measuring device, since the filling liquid contacts only the inner surface of the bag 31, it is sufficient to wash only the inner surface of the bag 31. For this reason, unlike the conventional weighing device 1, cleaning can be easily performed in a short time by introducing the filling liquid into the bag 31 without disassembling the weighing device 20.

Further, since the measuring device 20 is provided with the liquid supply amount adjusting stopper 42 capable of changing the inner volume of the cylinder chamber 45, the expanding volume of the bag 31 can be adjusted by the liquid supplying amount adjusting stopper 42, The amount of filling liquid introduced to the filling nozzle 14 can be arbitrarily set according to the bottle 15.

Further, when the metering device 20 is washed, the bag 31 is held in a substantially contracted state by fully closing the valves 33C and 33D of the air supply / discharge system 34, so that the area to be washed of the bag 31 can be reduced. . Moreover, the weighing device 20 does not have a large-diameter washing section in the cylinder 30 as in the conventional case, and has a simple structure. For these reasons, the metering device 20 can be cleaned in a short time, and the amount of the cleaning medium such as the cleaning liquid or steam used can be reduced.

FIG. 7 is a sectional view showing a weighing device in a second embodiment of the filling device according to the present invention. In the present embodiment, the same parts as those of the above-mentioned embodiment and the prior art are designated by the same reference numerals and the description thereof will be omitted.

This weighing device 60 is obtained by installing the bag 31 in the conventional weighing device 1 shown in FIG. 9, and is not provided with the core 32 and the air supply / discharge system 34 of the weighing device 20. The opening of the bag 31 is attached by being sandwiched between the cylinder 3 and the adapter 38.

In the filling process, the measuring device 60 moves the piston 4 back (downward) to lower the cylinder chamber 6 of the cylinder 3.
The inside of the bag 31 is decompressed, the bag 31 is inflated until it contacts the inner wall surface of the cylinder 3 and the piston 4, and the filling liquid is sucked into the bag 31 and measured. Further, the piston 4 is moved forward (raised) to pressurize the inside of the cylinder chamber 6 and guide the filling liquid in the bag 31 to the filling nozzle 14.

In this measuring device 60, the lubricant 55 is provided in the space surrounded by the cylinder 3, the piston 4 and the bag 31.
Is satisfied and the bag 31 is smoothly expanded and contracted.

In the washing process, the measuring device 60 operates the piston 4 in the same manner as in the filling process, and the bag 3
A filling medium such as a filling liquid or steam is introduced into the inside of 1, and is washed and sterilized to waste liquid.

Therefore, according to the above-described embodiment, since the filling liquid comes into contact only with the bag 31 in the filling process of the weighing device 60, the washing liquid and the vapor only enter the bag 31 in the washing process of the weighing device 60. It suffices to supply a cleaning medium such as the above, and there is no need to disassemble the measuring device 1 and clean the front and side faces of the piston 4, unlike the conventional measuring device 1. Therefore, the cleaning process can be facilitated.

Further, by adjusting the reciprocating stroke of the piston 4, it is possible to change the supply amount of the filling liquid into the bag 31, and the amount of the filling liquid from the filling nozzle 14 is changed to the bottle 15.
It can be arbitrarily set according to.

Further, since the cylinder 3 of the weighing device 60 is not composed of the filling part and the large-diameter cleaning part,
The structure of the weighing device 60 is simple. Moreover, it is sufficient to wash and sterilize only the bag 31 as described above. For these reasons, the weighing device 60 can be washed and sterilized in a short time.

Further, by setting the inner volume of the cylinder 3 by the piston 4, that is, the expansion volume of the bag 31, to a predetermined value, the filling liquid supplied into the bag 31 can be accurately measured, and good filling accuracy can be obtained. be able to.

FIG. 8 is a sectional view showing a weighing device in a third embodiment of the filling device according to the present invention. In the present embodiment, the same parts as those in the first embodiment and the prior art are designated by the same reference numerals and the description thereof will be omitted.

This weighing device 70 is obtained by replacing the bag 31 of the weighing device 60 shown in FIG. 7 with a bellows-shaped bag 71 made of the same material as the bag 31. Also in the weighing device 70, similarly to the weighing device 60, the piston 4 is moved back to extend the bag 71 until it comes into contact with the inner surface of the cylinder 3 and the piston 4, and the filling liquid or the cleaning medium is placed in the bag 71. In addition, the piston 4 is moved forward to contract the bag 71, and the filling liquid and the cleaning medium in the bag 71 are introduced to the filling nozzle 14. Therefore, also in the weighing device 70, the same effect as that of the weighing device 60 is obtained.

[0058]

As described above, according to the filling device of the present invention, it is possible to obtain good filling accuracy with a simple structure and to wash the weighing device without disassembling it.

[Brief description of drawings]

FIG. 1 is an overall front view showing a first embodiment of a filling device according to the present invention.

FIG. 2 is a vertical cross-sectional view showing the weighing device of FIG.

3 (A) is a view taken along the line IIIA in FIG. 2, and FIG. 3 (B) is a view taken along the line IIIB in FIG. 3 (A).
3C is a sectional view taken along the line IIIC-IIIC in FIG. 3A, and FIG. 3D is a sectional view taken along the line IIID-IIID in FIG. 3A.

FIG. 4 is an operation diagram showing an operation of the weighing device of FIG. 2;

5 is a flowchart showing a filling process of the weighing device of FIG.

FIG. 6 is a flowchart showing a cleaning process of the weighing device of FIG.

FIG. 7 is a cross-sectional view showing a weighing device according to a second embodiment of the filling device according to the present invention.

FIG. 8 is a cross-sectional view showing a weighing device in a third embodiment of the filling device according to the present invention.

FIG. 9 is a cross-sectional view showing a weighing device in a conventional filling device (filling device provided with a piston type metering device).

[Explanation of symbols] 10 Filling device 14 Filling nozzle 15 bottles 18 Liquid supply piping 20 Weighing device 30 cylinders 31 bags 32 core 33A, 33B, 33C, 33D valves 34 Air supply / discharge system 35 cylinder bottom 35A Inner surface of cylinder bottom 36 cylinder top 36A Inner surface of cylinder top 41 Air supply / discharge passage 42 Liquid supply amount adjustment stopper 45 cylinder chamber 46 Air discharge passage 47 Cylinder inner wall 50 core plate 51 sphere

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B67C 3/20

Claims (2)

(57) [Claims] 1. A filling device for measuring the filling liquid stored in a tank with a measuring device and then introducing the filling liquid to a filling nozzle for filling, wherein the measuring device is expandable and contractable in the hollow portion of an apparatus main body having a hollow portion. The bag body is arranged, and by injecting the filling liquid into the bag body, the bag body is inflated until it comes into contact with the inner surface of the cavity of the apparatus main body, and the filling solution is pressurized and filled in the bag body. It is configured such that the bag body is contracted by pressurizing the inside of the hollow portion of the apparatus main body or the contracting force of the bag body itself and guiding the filling liquid pressurized and filled in the bag body to the filling nozzle. , The device body, the core is installed in a bag body,
The shrinking bag is closely attached to the core and can be locked
Filling apparatus characterized by being. 2. The weighing device is provided with an adjusting member capable of changing the inner volume of the hollow portion of the device body in the device body, and the inflatable volume of the bag body that can come into contact with the device body is changeable. Item 1. The filling device according to Item 1.