JPH10152196A - Method and machine for filling expandable liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To rapidly and easily perform the substitution of the air in a bottle for the pressurized gas (back pressure gas) in filling the expandable liquid in a container such as a bottle. SOLUTION: A bottle is elevated by an air cylinder to insert a filling pipe 8 in the bottle, a bottle mouth is abutted on a bottle mouth packing of a bottle mouth guide 10 to pour the gaseous carbon dioxide which is the pressurized gas through the filling pipe 8, and the air inside is discharged from a discharge pipe 9. The bottle is once lowered to generate a clearance between the bottle mouth and the bottle mouth packing, and the inside air is released from the clearance. Thus, the air can be rapidly substituted for the gaseous carbon dioxide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid filling machine for filling a foaming liquid such as beer into a container such as a bottle and a liquid filling method for filling the foaming liquid. The present invention relates to a simple liquid filling machine suitable for filling a liquid.

[0002]

2. Description of the Related Art In order to fill a foaming liquid into a container such as a bottle, a filling liquid tank is equipped with a lower end portion of a filling tube provided so as to be opened and closed by an on-off valve near a bottom of the container. Then, a gas such as carbon dioxide gas to prevent oxidation of the beer or other foaming liquid is introduced into the container, which is cut off from the outside air, to replace the air inside and fill the gas pressure inside the container. A pressurized gas (which may be carbon dioxide gas) for equalizing the pressure in the liquid tank is introduced, and then the foaming liquid in the filling liquid tank is filled with a filling tube. After the filling is completed, the pressure inside the container is released, the foaming liquid remaining inside the filling tube is extruded into the container, and finally, the container opening is sealed with a lid.

FIGS. 11 to 15 show an example of a conventional liquid filling machine for filling a bottle container with a foaming liquid. In FIG. 11, reference numeral 110 denotes an annular beer tank which is rotated by power not shown, and 120 denotes a beer tank 1
Each of the opening / closing valves 112 each having a valve seat arranged annularly at a predetermined interval on the bottom wall portion 111 of the tenth opening / closing valve 112 is opened / closed by a separate opening / closing lever 121. The upper end of each filling tube 113 is inserted into each filling port 112 with a valve seat of the valve, and each inserted filling tube 113 has a built-in exhaust pipe 114 opened at the top and bottom of the tube wall. Then, the filling tube mounting member 115 fitted and fixed to the outside thereof is screwed to the bottom wall portion 111 of the beer tank 110 with a union nut 116, so that
Each of them is fixed, and is provided with a member 117 for bottle opening guidance and airtight maintenance so as to be slidable and not to fall off.

The bottom wall 111 of the beer tank 110, which is located inside the filling port 112 with a valve seat, has a ring-shaped pressurized gas supply chamber 130 along the ring-shaped beer tank 110, and an opening to the outside air. An exhaust / pressure gas release chamber 140 having an opening, a carbon dioxide gas supply chamber 150, etc., and an exhaust / pressure gas release passage 143 in the exhaust / pressure gas release chamber 140 for each filling port 112 with a valve seat. A throttle valve 162 communicated with the throttle valve 162 and a float valve chamber 161 communicated with the throttle valve 162 are provided. The bottom wall 111 of the beer tank 110 which is located outside the filling port 112 with each valve seat is provided with: Filling port 11 with each valve seat
Two air supply valves 131 and a pressure gas release valve 141
And a carbon dioxide supply valve 151 and the like.

On the other hand, reference numeral 170 denotes a bottle. As shown in FIG. 15, the bottle 170 is formed by a carry-in conveyor 172 and a feed-side star wheel 173.
The feeder 10 is fed onto a bottle support table 175 mounted on a rotary table 174 so as to be able to move up and down, and is fed into a sealing device (not shown) by a feed-side star wheel 176 and a discharge conveyor 177. is there.

Next, the filling step of the foaming liquid by the filling machine will be described. First, as shown in the plan view of FIG. 15, the bottle 170 is moved by the carry-in conveyor 172 and the feed-side star wheel 173 to the bottle support table 1 of the turntable 174.
When the bottle 170 reaches the point A by the rotation of the rotary table 174, the bottle supporting base 175 is raised by a cam (not shown), whereby the bottle 170 is moved to the bottle mouth guiding and airtight holding member 117. Is raised with
The bottle mouth guiding and airtight holding member 117 is pressed against the lower surface of the filling tube mounting member 115 and the filling tube 113
When the lower end of the bottle 170 is inserted near the bottom of the bottle 170, the ascent of the bottle 170 is stopped, and the bottle mouth is shut off from the outside air by the bottle mouth guiding and airtight holding member 117 and the filling tube mounting member 115. The first step is completed by being pressed (the state shown in FIG. 11).

After the completion of the first step, the air supply valve 131 is rotated by the rotation of the rotary table 174 so that the air supply valve opening cam 13 is opened.
At 5, as shown in FIG. 11, the valve is opened, and carbon dioxide as the back pressure gas is supplied from the carbon dioxide gas supply chamber 130 through the carbon dioxide gas supply passage 132 and the bottle mouth guiding and airtight holding member 117 to the first position. The throttle valve 162 restricts the flow of the introduced carbon dioxide gas through the exhaust pipe 114 and the exhaust passage 143 into the exhaust chamber 140 by introducing the carbon dioxide gas into the bottle 170 that is isolated from the outside air by the process. Waits until the pressure in the beer tank 110 becomes equal to the pressure in the beer tank 110, and the air supply valve 131 is moved to the twelfth by the air supply valve closing cam 136.
As shown in the figure, the second step is completed by closing the valve.

After the completion of the second step, the on-off valve 120 is opened by the on-off valve opening cam 125 by the rotation of the rotary table 174 as shown in FIG. Filling port 112 and filling tube 1
13, the bottle 170 is filled with the filled beer, and the carbon dioxide gas in the bottle 170 is filled with the filled beer through the exhaust pipe 114, the exhaust passage 118, the float valve chamber 161, the throttle valve 162, and the exhaust passage 143 to the exhaust chamber 140. And waits for the beer to be filled to a predetermined liquid level.
With the on-off valve closing cam 126 as shown in FIG.
By closing the valve and closing the float valve chamber 161 with beer that enters the float valve chamber 161 via the exhaust pipe 114 and the exhaust passage 118, the third step is completed.

After the third step, the rotary table 174 is rotated to open the carbon dioxide releasing valve 141 with the carbon dioxide releasing valve opening cam 145 as shown in FIG. The empty portion 171 is communicated with the exhaust chamber 140 through the bottle mouth guiding and airtight holding member 117, the carbon dioxide release passage 142, the throttle valve 162, and the exhaust passage 143, and the pressure in the empty portion 171 is released. In the process, the float valve chamber 161 is restarted by the air throttled by the throttle valve 162 to return the beer that has entered the float valve chamber 161, the exhaust passage 118 and the exhaust pipe 114 to the bottle 170, and The fourth step is performed by closing the carbon dioxide release valve 141 with the carbon dioxide release valve closing cam 146 after the pressure in the section 171 is released to reach the atmospheric pressure. To completion. The bottle support 175 is lowered, and the pressure contact with the holding member 117 is released as shown in FIG. In FIG. 14, the operation of the cam 156 opens the carbon dioxide gas supply valve 151, so that the carbon dioxide gas supply chamber 1 is opened.
CO ₂ gas from the tube 50 through the passage 153
3, and the remaining beer is discharged to complete the filling process.

[0010]

The above-mentioned conventional filling machine is originally intended to fill a large number of bottles with a foaming liquid in a factory or the like, and handles a large number of bottles at the same time. Therefore, a bottle conveying device is required, and the device is inevitably large in size. In addition, it is necessary to provide a device for injecting carbon dioxide used to replace the air in the empty space above the bottle, and there is a problem that the mechanism must be complicated. Further, since the air and the back pressure gas are replaced while the container is sealed from the outside, there is a problem that the replacement takes time.

The present invention has been made in view of the above problems, and is a liquid filling machine which is relatively small and is suitable for filling a foaming liquid into a container such as a single bottle in particular. Another object of the present invention is to provide a foaming liquid filling machine capable of rapidly performing the replacement of the air inside the container with an antioxidant gas before the filling step.

[0012]

According to a method for filling a foamable liquid of the present invention, a filling pipe is inserted into a container together with an exhaust pipe, and an opening of the container is brought into contact with a sealing member to shut off the container from outside air. A filling tube insertion step, a replacement gas introducing a gas gas for preventing oxidation from the bottom of the container through the filling tube to replace air in the container with the gas, and replacing the gas introduced into the container with a predetermined gas. A pressurizing step of pressurizing to a pressure, filling the foamable liquid through the filling tube into the pressurized container, and discharging the pressurized gas through the exhaust pipe into the container. In the foaming liquid filling method for filling a foaming liquid, the replacing step includes moving the container relatively to the sealing member to temporarily form a gap between an opening of the container and the sealing member. Formed through the gap Characterized in that so as to discharge the air in the vessel Te.

Further, the foamable liquid filling machine of the present invention comprises a filling pipe and a discharge pipe which can be inserted into a container, means for making the container relatively close to or away from the filling pipe and the exhaust pipe, When the filling pipe and the exhaust pipe are inserted into the container, a sealing member that comes into contact with the mouth of the container and shuts off the container and outside air, and a gas for preventing oxidation is introduced into the container through the filling pipe. Back pressure gas introducing means for pressurizing the inside of the container to a predetermined pressure, and injecting a foaming liquid into the container into which the back pressure gas has been introduced, and passing the gas in the container through the exhaust pipe. In a foamable liquid filling machine including a liquid filling means for discharging, air in the container can be discharged between the container port and the sealing member by relative movement between the container and the sealing means. Hand that temporarily forms a gap Characterized by comprising a.

Further, according to the foaming liquid filling machine of the present invention, the filling tube and the discharge tube are inserted into the container, the back pressure gas is introduced into the container, the air inside the container is discharged, and the container is discharged into the container. A control device for automatically performing a series of operations for injecting the foaming liquid is provided.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic structure of a main part of a foaming liquid filling machine for filling a container such as a bottle with a foaming liquid according to one embodiment of the present invention. The foamable liquid filling machine 1 has a frame 2, and an air cylinder 4 is mounted on an air cylinder mount 3 of the frame 2. A bottle base 5 is provided above the piston portion of the air cylinder 4, and the bottle base 5 is configured to move up and down by the operation of the air cylinder 4. A nozzle mounting seat 7 having concentrically provided filling pipes 8 and exhaust pipes 9 is fixed to a nozzle mounting base 6 provided above the frame body 2. Is equipped with a bottle mouth guide 10.

A connection pipe 7a is connected above the nozzle mounting seat 7 so as to communicate with the filling pipe 8. The connection pipe 7a has a carbon dioxide gas supply pipe 11, a foaming liquid supply pipe 12, and a supply pipe. The air pipes 13 are respectively branched and connected via valve bodies. Reference numeral 15 denotes a control device, which is an operation switch for controlling the air cylinder 4 and various valve elements at the time of a filling operation, and an arithmetic processing device (CP) for automatically operating these.
U).

FIG. 2 shows details of the nozzle mounting seat 7 and a piping system connected thereto, and FIGS. 3 to 5 show details of each component. The nozzle mounting seat 7 has a structure shown in FIG. 3, and has a communication hole 71 penetrating vertically through a central portion. At the upper end of the communication hole 71, a connection pipe mounting portion 72 is provided. At a substantially central portion of the communication hole 71, a mounting portion 73 of the filling pipe 8 is provided.
At the lower end, an attachment portion 74 of the exhaust pipe 9 is formed to form an enlarged diameter portion, and further, an enlarged diameter for forming an exhaust passage between the filling pipe attachment portion 73 and the exhaust pipe attachment portion 74. Recess 7
5 are formed. An exhaust passage 76 communicating with the enlarged-diameter concave portion 75 is formed in the nozzle attachment seat 7 in a horizontal direction, and an exhaust nozzle attachment portion 77 for attaching an exhaust nozzle described later is formed at an end of the exhaust passage 76. In addition,
Reference numeral 78 denotes a bolt hole for fixing the nozzle mounting seat 7 to the nozzle mounting portion 6. A screw portion 79 for mounting the bottle opening guide 10 is formed below the nozzle mounting seat 7.

The filling tube 8 shown in FIG. 4A is fixed to the filling tube mounting portion 73 of the nozzle mounting seat 7 so that the upper end thereof is inserted. The exhaust pipe 9 shown in FIG. 4B is fixed by inserting its upper end into the exhaust pipe mounting portion 74. As shown in FIG. 4, the filling pipe 8 has a smaller diameter than the exhaust pipe 9,
As shown in FIG. 2, the length of the filling pipe 8 is long and the length of the exhaust pipe 9 is short. Therefore, when the filling pipe 8 and the exhaust pipe 9 are mounted on the nozzle mounting seat, they are mounted so as to be concentric with each other, as shown in FIG. An annular passage 16 is formed.

The connecting pipe mounting portion 72 of the nozzle mounting seat 7 includes
One end of the connection pipe 7a is inserted and attached. The connection pipe 7a is branched and connected to a carbon dioxide gas supply pipe 11, a foamable liquid supply pipe 12, and an air supply pipe 13 for supplying outside air. Also, the carbon dioxide gas supply pipe 11 has a carbon dioxide gas valve 21, the foamable liquid supply pipe 12 has a liquid valve 22, and the air supply pipe 1.
3 is provided with an air supply valve 23, and each valve is controlled to open and close by an air piping system described later.

An exhaust nozzle 17 is attached to an exhaust nozzle attachment portion 77 of the nozzle attachment seat 7.
Is connected to an exhaust pipe 18 and communicates with the outside air. Below the nozzle mounting seat 7, a bottle mouth guide 10 shown in FIG. As shown in FIG. 5, the bottle opening guide 10 has an opening 10a into which the exhaust pipe 9 is inserted, and is formed with an inclined surface 10b whose diameter increases conically from the opening 10a. A concave portion 10c for mounting to the nozzle mounting seat 7 is formed in an upper portion of the bottle opening guide 10, and a screw portion 10d which is screwed with a screw portion 79 in a lower portion of the nozzle mounting seat 7 is formed on an inner surface of the concave portion 10c. ing. In addition, a ring-shaped bottle mouth packing 10e is attached to the opening hole 10a as a sealing member, so that when the bottle container comes into contact with the bottle container, it is shut off from the outside air.

Next, an air piping system for operating the air cylinder 4, the liquid valve 21, the carbon dioxide valve 22, and the air supply valve 23 shown in FIGS. 1 and 2 will be described with reference to FIG. The filling operation by the foamable liquid filling machine 1 of the present embodiment includes:
Basically, the operation of the air cylinder 4 for moving the bottle base 5 up and down, and replacing the air in the bottle container with carbon dioxide gas, which is a gas for preventing the oxidation of the foaming liquid such as beer, while maintaining the pressure at a predetermined level. The operation includes an operation of a carbon dioxide valve 21 for pressurizing, an operation of a liquid valve 22 for filling a foaming liquid such as beer, and an operation of an air supply valve 23 for pushing out the foaming liquid remaining in the filling pipe 8.

The operation of the air cylinder 4, the carbon dioxide gas valve 21, the liquid valve 22, and the air supply valve 23 are all operated by air from a compressed air source. , 32, 33, and 34, respectively. The air is adjusted to a predetermined pressure via an air filter 34 and a pressure regulating valve 35 and supplied to each. Reference numerals 36 and 37 denote pressure gauges for monitoring the pressure of the compressed air.

The operation of the air cylinder 4 is provided in the branch pipe 31 so that air can be selectively supplied to the cylinder chambers 4a and 4b of the air cylinder 4 by pipes 31a and 31b by a solenoid valve 41. And, pipes 31a, 31b communicating with these cylinder chambers 4a, 4b are provided.
Are provided with flow control valves 50a and 50b, which control the amount of air supplied to the cylinder chambers 4a and 4b so that the ascending and descending speeds of the piston of the air cylinder can be limited to appropriate speeds. That is, the flow control valves 50a and 50b have a configuration in which a throttle 51 and a check valve 52 are provided in two parallel passages as shown in the drawing, and a free passage is formed on the air supply side, and the flow is controlled by the throttle on the discharge side. It is controlled. Thus, when the piston of the air cylinder rises in FIG. 6, the lower flow control valve 50b serves as a free passage to supply pressurized air, and the upper flow control valve 50a serves as a throttle valve to limit the rising speed. You.

On the other hand, the lower flow rate control valve 50a supplies pressurized air through a free passage, and the lower flow rate control valve 50b functions as a throttle valve to limit the descent speed. . Thereby, the vertical movement speed of the bottle base 5 fixed to the piston of the air cylinder 4 can be appropriately restricted.

The branch pipes 32, 33 and 34 communicating with the carbon dioxide valve 21, the liquid valve 22 and the air supply valve 23 are provided with solenoid on-off valves 42, 43 and 44, respectively. , The opening and closing operations of the carbon dioxide valve 21, the liquid valve 22, and the air supply valve 23 are performed.

The foamable liquid filling machine 1 according to the present embodiment can be operated by switching between a manual mode and an automatic mode by operating a changeover switch of the control device 15. FIG. 7 shows various operation buttons provided on the control device 15. A manual button 61 for switching the operation mode between manual and automatic, an automatic button 62, and an operation button 6 for turning on / off the supply of compressed air from outside to the pipe 30
3, 64, operation buttons 6 for operating the vertical movement of the air cylinder 4
5, 66, 67; operation buttons 68, 69 for opening and closing the carbon dioxide valve 21; operation buttons 70, 71 for opening and closing the liquid valve 22 for filling the foaming liquid; Operation buttons 72 and 73 for opening and closing the valve 23 are provided. A timer 80 for setting the opening time of the carbon dioxide valve 21 and a timer 8 for setting the opening time of the liquid valve 22
1 is provided so that the opening time of each valve can be set during the operation in the automatic mode.

Next, the operation of filling the bottle container with the foaming liquid using the foaming liquid filling machine 1 and the operation of the foaming liquid filling machine 1 will be described with reference to FIGS. [Manual mode] In the manual mode, the switching operation of the switching solenoid valve 41 for controlling the operation of the air cylinder 4 for moving the bottle base 5 up and down, which is necessary for the filling operation, the opening and closing operation of the carbon dioxide gas valve, The opening / closing operation of the liquid valve 22 as a filling valve and the opening / closing operation of the liquid drainage valve 23 are performed by manual operation buttons provided in the control device 15.

Hereinafter, the step of filling the bottle with the foaming liquid will be described with reference to the flowcharts of FIGS. 7, 8 and 9. First, after turning on the power of the apparatus (S (step) 201), the bottle 90 is set on the bottle base 5. Next, the air cylinder 4 is raised by operating the solenoid valve 41 with the air cylinder raising operation button 65 (S20).
2). The bottle 90 rises with the rise of the air cylinder 4, and the bottle mouth 91 is guided by the inclined surface 10 b of the bottle mouth guide 10, and rises to a position where it contacts the bottle mouth packing 10 e of the bottle mouth guide 10 (FIG. 8A )reference). When the bottle mouth 91 comes into contact with the bottle mouth packing 10e, the lifting of the air cylinder 4 is stopped by a limit switch (not shown) (S203).
As a result, the bottle opening 91 is in a state where the filling pipe 8 and the exhaust pipe 9 are inserted and is blocked from the outside air. Next, the carbon dioxide gas valve 21 is opened by the operation button 68 of the carbon dioxide gas valve 21, and carbon dioxide gas as an antioxidant gas is introduced into the bottle 90 (S 204). The air initially present in the bottle 90 is pushed out by the introduction of the carbon dioxide gas and is discharged to the outside through the annular passage 16 and the exhaust pipe 18 in the exhaust pipe 9, thereby replacing the air inside with the carbon dioxide gas. Here, after the introduction of the carbon dioxide gas has been performed for a predetermined time, the carbon dioxide valve 21 is closed by operating the operation button 69 (S205). Then, the operation button 67 is operated to lower the air cylinder 4 only slightly (S2).
06), the operation button 65 is operated again to raise the bottle, and the bottle mouth is brought into contact with the bottle mouth packing 10e (S207). By this operation, as shown in FIG. 8B, a gap s is once created between the bottle mouth 91 and the bottle mouth packing 10e, and the air is discharged from the gap, so that the air and the carbon dioxide gas are removed. Can be quickly replaced. Note that this S206,
The operation of forming a gap between the bottle mouth 91 and the bottle mouth packing 10e in S207 is further repeated once or twice.

When the air in the bottle 90 is completely replaced with carbon dioxide, the carbon dioxide valve 21 is opened (S208), and the pressure in the container is increased until the pressure in the container becomes equal to the pressure in the beer storage tank. When the inside of the container is pressurized to a predetermined pressure, the carbon dioxide valve 21 is closed (S209). Next, the operation valve 70 for operating the liquid valve 22 is operated to open the liquid valve, and the bottle 90 is opened.
A foaming liquid is poured into the inside (S210). As the foamable liquid is injected into the bottle, the carbon dioxide gas inside is discharged from the exhaust pipe 9 to the outside via the exhaust passage 76. At the stage where the liquid is injected up to the solid line X indicated by the one-dot chain line in FIG.
Is closed by operating the operation button 71 to stop the injection (S2
11).

Next, the air cylinder 4 is lowered by operating the operation button 67 (S212). The air supply valve 23 is opened by operating the operation button 72 just before or at the time when the lower end of the filling tube 8 reaches the liquid level when the air cylinder 4 descends (S213) (FIG. 8 ( c)). Air supply valve 2
By opening 3, the foaming liquid remaining in the passages of the connecting pipe 10 and the filling pipe 8 is dropped into the bottle 90 by the atmospheric pressure and completely contained. In this case, since the residual liquid in the passage is returned quietly above the liquid already filled in the bottle, foaming of the already filled liquid can be suppressed.

When the air cylinder 4 descends and returns to the initial position, the switching solenoid valve 41 for operating the air cylinder 4 is shut off by a limit switch (not shown) and stopped (S214). Then, finally, the air supply valve 43 is closed by operating the operation button 73 (S215), and the process ends in a state where the next filling is possible.

[Automatic Mode] In the automatic mode, the control device 15 executes all the operations, and basically the device automatically executes the above-described series of filling operations in the manual mode based on a predetermined program.

Hereinafter, description will be made based on the flowchart of FIG. Prior to the start, the timer A of the control device 15
The timer B is set to set the opening time of the carbon dioxide gas valve and the opening time of the liquid valve to predetermined times. First, the power of the apparatus is turned on, and the bottle 90 is placed on the bottle base 5 (S301). Next, the operation mode is set to automatic by operating the automatic mode selection button 62 of the control device 15 (S302), and the device is started by pressing the start button 85 (S303). When the start signal is input, the control device 15 issues a valve switching command to the solenoid valve 41 to raise the air cylinder 4 (S30).
4). When the air cylinder 4 rises and the bottle opening 91 of the bottle 90 comes into contact with the bottle opening packing 10e of the bottle opening guide 10, the operation of the limit switch stops the lifting of the air cylinder 4 (S305). Next, the control device 15 issues an operation command to the solenoid valve 42 for operating the carbon dioxide gas valve 21 to open it (S306). The carbon dioxide valve 21 is opened automatically for a preset time, for example, about 1 to 2 seconds, and then automatically closed (S307). Next, the control device 15 issues a lowering command to the solenoid valve 41 for operating the air cylinder to lower the air cylinder 4 (S308). The lowering of the air cylinder 4 is performed only for a preset time, here, 2 seconds, and the solenoid valve 4 is automatically raised.
1 is switched (S309). The air cylinder 4 rises and the bottle mouth 9 is again activated by the operation of the limit switch.
1 stops in a state where it contacts the bottle opening packing 10e of the bottle opening guide 10 (S310). The vertical movement of the air cylinder 4 causes the bottle 90 to move as described in the manual mode.
The air inside is effectively discharged to the outside.
After repeating the operations of S306 to S310 twice, the carbon dioxide valve 21 is opened (S311) and closed after a lapse of a predetermined time in order to increase the pressure in the container to the same pressure as the pressure in the beer storage tank. (S312).

Next, the control device 15 issues a command to the solenoid valve 42 of the liquid valve 22, opens the liquid valve 22, and injects the foamable liquid in the storage tank into the bottle 90 through the filling tube 8 (S313). The liquid valve 22 is opened only for a preset time, injected with a predetermined amount of the foaming liquid, and closed (S31).
4). After the injection is completed, the state is kept as it is, and a predetermined time passes until the liquid in the bottle 90 stops (S315). Thereafter, the solenoid valve 41 of the air cylinder 4 is operated to move down (S31).
6) At the timing when the filling tube 8 reaches near the liquid level in the bottle, a command is issued to the solenoid valve 44 of the air supply valve 23 to open the air supply valve 23 (S317). Thereby, the filling pipe 8
The foaming liquid remaining in the filling tube 8 before is discharged from the bottle mouth 91 is stored in the bottle 90.

When the air cylinder 4 reaches the lowest point, the lowering of the air cylinder 4 is stopped by the operation of the limit switch (S318). Then, the intake valve 23 is closed (S319), thereby ending the charging operation. As described above, according to the method for filling the foamable liquid shown in the present embodiment, in the step of replacing the air in the bottle with carbon dioxide gas, when the pressure in the container is increased to some extent after the carbon dioxide gas is injected. By opening the bottle opening to the outside air, the air inside the container is pushed by the carbon dioxide gas and quickly escapes out of the container, and it is possible to quickly replace the air with the carbon dioxide gas Becomes

When the liquid remaining in the filling nozzle or the like is stored in the bottle after the foaming liquid is injected into the bottle, the lower end of the filling tube can be gently discharged to the upper portion of the filled liquid. Thus, it is possible to prevent the already filled liquid from foaming and overflowing the outside of the bottle.

Further, according to the foamable liquid filling machine shown in this embodiment, it is possible to quickly carry out the filling operation with a simple apparatus without using a large-sized apparatus, and to perform a series of operations. The filling step can be performed automatically. In addition, it is possible to freely set the timing for collecting the residual liquid inside the filling tube into the bottle, and it is possible to prevent the filled liquid from foaming and overflowing by setting the optimal timing. Becomes In addition, by using the foamable liquid filling machine of this embodiment, even a person who does not particularly need skill can easily fill a container such as a bottle.

In the above embodiment, the bottle is raised or lowered with respect to the filling tube by the air cylinder, but the relative movement between the bottle and the filling tube is caused by moving the filling tube with respect to the bottle. It can also be moved. Also,
Carbon dioxide gas is used as an antioxidant gas,
In addition to carbon dioxide, any gas that is inert to the foaming liquid such as nitrogen can be used.

[0039]

According to the first aspect of the present invention, when filling a container such as a bottle with a foaming liquid, the replacement of the back-pressure gas such as air and carbon dioxide gas in the container prior to filling is rapid. In particular, it can be performed without increasing the size and complexity of the apparatus.

According to the second aspect of the present invention, since the bottle base on which the bottle mounted on the air cylinder is placed can be moved up and down at short intervals, the air in the container and the back-pressure gas are exchanged. The replacement operation can be quickly performed by a simple operation. According to the third aspect of the present invention, the replacement of the air in the container with the back pressure gas and the filling operation of the foaming liquid can be automatically performed, and the filling operation can be performed without special skill. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic view of a main part of a foamable liquid filling machine according to an embodiment of the present invention.

FIG. 2 is a diagram showing details of a nozzle attachment portion.

FIG. 3 is a view showing a nozzle mounting seat.

FIG. 4 is a view showing a filling pipe and an exhaust pipe.

FIG. 5 is a view showing a bottle mouth guide.

FIG. 6 is a diagram showing an air piping system for operating the foamable liquid filling machine.

FIG. 7 is a diagram showing an operation panel of the control device.

FIG. 8 is an operation explanatory view of the foamable liquid filling machine according to the present invention. (A) is a state where the bottle mouth is in contact with the bottle mouth packing, (b) is a state where a gap is formed between the bottle mouth packing and the bottle mouth, and (c) is a state where the residual liquid in the filling tube is discharged. Is shown.

FIG. 9 is a flowchart for operating in a manual mode using a foamable liquid filling machine.

FIG. 10 is a flowchart for operating in an automatic mode using a foamable liquid filling machine.

FIG. 11 is a main part configuration diagram of a foamable liquid filling machine according to the prior art in the present invention.

FIG. 12 is a view showing an operation process of a conventional foaming liquid filling machine.

FIG. 13 is a view showing an operation process of a conventional foamable liquid filling machine.

FIG. 14 is a view showing an operation of discharging a residual liquid from a filling tube of a conventional apparatus.

FIG. 15 is a view showing a bottle conveying device of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Foamable liquid filling machine 2 Frame 4 Air cylinder 5 Bottle stand 7 Nozzle mounting seat 8 Filling tube 9 Discharge tube 10 Bottle mouth guide 10c Bottle mouth packing 21 Carbon dioxide gas valve 22 Liquid valve 23 Air supply valve 41-44 Solenoid valve 50a , 50b Flow control valve

Claims (3)

[Claims] 1. A filling pipe inserting step of inserting a filling pipe together with an exhaust pipe into a container and bringing a mouth portion of the container into contact with a sealing member to shut off the container from the outside air; A substitution step of introducing an antioxidant gas from the bottom of the container to replace the air in the container with the gas, a pressurizing step of pressurizing the gas introduced into the container to a predetermined pressure, and A foaming liquid filling method for filling a foaming liquid into the container by filling the foaming liquid through the filling tube and discharging the pressurized gas through the exhaust pipe, In the replacement step, the container is moved relatively to the sealing member to temporarily form a gap between the mouth of the container and the sealing member, and the air in the container is discharged through the gap. It is characterized by doing Foamable liquid filling method of filling the foamable liquid to the container. 2. A filling pipe and an exhaust pipe which can be inserted into a container, means for making the container relatively close to or away from the filling pipe and the exhaust pipe, and the filling pipe and the exhaust pipe inside the container. When inserted, a sealing member that comes into contact with the mouth of the container and shuts off the container and the outside air, and a gas for preventing oxidation is introduced into the container through the filling tube to replace the air, and the pressure is reduced to a predetermined pressure. Gas pressurizing means for pressurizing the inside of the container, and injecting a foamable liquid into the container into which the gas has been introduced,
A liquid filling means for discharging the gas in the container through the exhaust pipe, between the container port and the sealing member by relative movement between the container and the sealing means. A foamable liquid filling machine comprising means for temporarily forming a gap through which air in the container can be discharged. 3. Inserting a filling tube and a discharging tube into the container;
3. The control device according to claim 2, further comprising a control device for automatically performing a series of operations of introducing a gas for preventing oxidation into the container, discharging air from the container, and injecting the foamable liquid into the container. Foamable liquid filling device.