JP5078277B2 - Liquid filling machine - Google Patents

Description

  The present invention relates to a liquid filling machine equipped with a staying liquid storage part used when filling a liquid container such as beer, soft drinks, etc., and in particular, a drinking liquid in a staying liquid storage part. The present invention relates to a liquid filling machine that can detect even a slight leak when a leak occurs.

  As a liquid filling machine of this type, conventionally, the staying liquid storage section 12 of FIGS. 1 and 2 does not include the material 21 whose brightness changes due to moisture absorption, the compressed air introduction pipe 22, the transparent plate 9, and the optical brightness sensor. A liquid filling machine 1 is known.

  This known liquid filling machine will be described with reference to FIGS. 1 and 2 of the liquid filling machine according to the present invention for convenience. As shown in FIGS. 1 and 2, the conventional liquid filling machine is a liquid such as beer brewer. The container 2 is turned upside down and filled with beverage liquid such as beer and soft drinks through the base 3 from below, and the cylinder rod 4 connected to the base 3 of the liquid container 2 and the center of the cylinder rod 4 A cylinder having an exhaust hole 7 penetrating in the longitudinal direction, a retaining part 5 for allowing a beverage liquid to pass through the outer periphery of the cylinder rod 4, and a beverage liquid supply pipe 6 connected to the retaining part 5. By pushing up the rod 4 and opening the cap 3 of the liquid container 2, the staying part 5 and the exhaust hole 7 communicate with the inside of the liquid container 2, and the beverage liquid is supplied from the supply pipe 6 into the liquid container 2 through the staying part 5. When filling Moni, exhausted through the exhaust hole 7 a gas enclosed in the liquid container 2. The supply pipe 6 is provided with a staying liquid storage section 12 having a storage chamber 18, and the staying section 5 is provided with a pressurized gas introduction pipe 11 communicated through the exhaust hole 7 to lower the cylinder rod 4. By closing the cap 3 of the liquid container 2, the staying part 5 and the exhaust hole 7 are shut off from the inside of the liquid container 2, and pressurized gas is introduced into the staying part 5 from the pressurized gas introduction pipe 11. The staying liquid is fed to the liquid storage chamber 18 of the staying liquid storage section 12 through the supply pipe 6. The exhaust hole 7 communicates with the exhaust line 8 and the pressurized gas introduction pipe 11. Reference numeral 10 denotes a gas vent pipe.

  The above-mentioned known liquid filling machine is provided with the accumulated liquid storage part 12 at an arbitrary position of the supply pipe 6 and communicates the retention part 5 with the supply pipe 6 and also connects the pressurized gas introduction pipe 11 with the exhaust hole 7. The cylinder rod 4 is pulled down to close the base 3 of the liquid container 2, and then pressurized gas is introduced from the pressurized gas introduction pipe 11 into the staying part 5 through the exhaust hole 7, and the staying liquid in the staying part 5 is discharged. The liquid is sent to the accumulated liquid storage section 12 through the supply pipe 6.

However, since this type of known liquid filling machine does not have a function of detecting leakage of the liquid in the staying liquid storage part, even if a leakage of beverage liquid occurs in the staying liquid storage part 12, the leak detection is detected. It has the disadvantage that it cannot.
JP-A-8-230988 JP 2005-343529 A

  The problem to be solved by the present invention is to collect the beverage liquid staying in the staying portion without causing deterioration in quality when filling the liquid container such as beer, soft drink, etc. from the bottom through the base. At the same time, it is an object of the present invention to provide a liquid filling machine capable of detecting a leakage of a beverage liquid in a staying liquid storage section in advance and detecting the leakage in advance and improving the above-described drawbacks of the known technology.

In order to solve the above-mentioned problems, according to the liquid filling machine of the present invention, a liquid filling machine for filling a liquid container with a beverage liquid through a base, connected to the base and having an exhaust hole penetrating in the center longitudinal direction. Cylinder rod, a staying portion provided on the outer periphery of the cylinder rod, a drinking liquid supply pipe connected to the staying portion, a staying liquid storage part provided in the supply pipe, and the staying portion And a pressurized gas introduction pipe that communicates with the inside of the liquid container by pushing up the cylinder rod to open the base to the liquid container, and the retaining part and the exhaust hole communicate with the inside of the liquid container, and the beverage liquid is retained from the supply pipe. And filling the liquid container through the exhaust, exhausting the gas sealed in the liquid container through the exhaust hole, lowering the cylinder rod and closing the base of the liquid container, A liquid filling machine in which the distilling part and the exhaust hole are cut off from the inside of the liquid container, the pressurized gas is introduced into the staying part from the pressurized gas introduction pipe, and the staying liquid in the staying part is fed to the staying liquid storage part through the supply pipe In this case, a material that changes color due to moisture absorption and a sensor that detects a color change are provided on the upper portion of the material, and the leakage of beverage liquid occurs in the staying liquid storage portion. The material which is detected by the sensor and whose color changes due to moisture absorption is characterized in that water-absorbing white paper is pasted on a black double-sided tape, and when it absorbs water, the ground becomes dark and turns black.

  The liquid filling machine of the present invention having the above-described configuration is provided with a staying liquid storage part in the supply pipe, and the staying liquid staying in the staying part is sent to the staying liquid storage part through the supply pipe, and the staying liquid storage part is stored. By providing a material that changes color due to moisture absorption in the liquid part and a sensor that detects the color change at the top of this material, it is possible to collect the staying liquid without degrading the quality. When a liquid leak occurs, this leak is detected by a sensor, and the occurrence of the leak is prevented in advance.

  Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a cross-sectional view of a specific example of a liquid filling machine according to the present invention, and shows a state in which a mouthpiece is opened to fill a liquid container with a beverage liquid. FIG. 2 is a cross-sectional view illustrating a state in which the base of the liquid filling machine in FIG. 1 is closed and the liquid in the staying part is fed to the staying liquid storage part. FIG. 3 is a partially enlarged cross-sectional view of the staying liquid storage section according to the present invention. FIG. 4 is a partially enlarged cross-sectional view showing a state in which the base is opened. FIG. 5 is a partially enlarged cross-sectional view showing a state in which the base is closed.

  As shown in FIG. 1 and FIG. 2, the liquid filling machine 1 of the present invention is similar to the above-mentioned known ones, such as beer, soft drink, etc. A cylinder rod 4 connected to the base 3 of the liquid container 2, an exhaust hole 7 penetrating in the longitudinal direction of the center of the cylinder rod 4, and the liquid container 2 of the cylinder rod 4. By having a staying portion 5 for allowing a beverage liquid to pass therethrough and a drinking liquid supply pipe 6 connected to the staying portion 5, the cylinder rod 4 is pushed up to open the mouthpiece 3 of the liquid container 2. The retention part 5 and the exhaust hole 7 communicate with the inside of the liquid container 2, the beverage liquid is filled into the liquid container 2 through the retention part 5 from the supply pipe 6, and the gas enclosed in the liquid container 2 is exhausted. Through hole 7 To exhaust Te. The supply pipe 6 is provided with a staying liquid storage section 12 having a storage chamber 18, and the staying section 5 is provided with a pressurized gas introduction pipe 11 communicated through the exhaust hole 7 to lower the cylinder rod 4. By closing the cap 3 of the liquid container 2, the staying part 5 and the exhaust hole 7 are shut off from the inside of the liquid container 2, and pressurized gas is introduced into the staying part 5 from the pressurized gas introduction pipe 11. The staying liquid is fed to the liquid storage chamber 18 of the staying liquid storage section 12 through the supply pipe 6. The exhaust hole 7 communicates with the exhaust line 8 and the pressurized gas introduction pipe 11. Reference numeral 10 denotes a gas vent pipe.

  In the present invention described above, the accumulated liquid storage section 12 is provided at an arbitrary position of the supply pipe 6, and the retention section 5 is communicated with the supply pipe 6, and is communicated with the pressurized gas introduction pipe 11 through the exhaust hole 7. After the cylinder rod 4 is pulled down and the base 3 of the liquid container 2 is closed, pressurized gas is introduced from the pressurized gas introduction pipe 11 into the staying part 5 through the exhaust hole 7 and the staying liquid in the staying part 5 is supplied to the supply pipe. 6 is sent to the accumulated liquid storage section 12.

  As shown in FIGS. 1 to 3, particularly FIG. 3, the features of the present invention are a material 21 that changes color due to moisture absorption in the accumulated liquid storage unit 12, and a sensor 19 that detects a change in color above the material 21. The sensor 19 detects the leakage of the beverage liquid in the staying liquid storage section 12.

  In FIG. 1 to FIG. 3, the stay liquid introduction port 20 of the stay liquid storage section 12 that opens to the supply pipe 6 is covered with a diaphragm 17, and the diaphragm 17 is operated by compressed air from a compressed air introduction pipe 22. The accumulated liquid is sucked into the liquid storage chamber 18 of the accumulated liquid storage section 12 as shown in FIG. 2 and discharged from the liquid storage chamber 18 as shown in FIG. The material 21 whose color is changed by moisture absorption is attached to an arbitrary portion of the diaphragm 17.

  If leakage of beverage liquid occurs in the accumulated liquid storage section 12, for example, the diaphragm 17, the material 21 stretched on the diaphragm 17 changes its color due to moisture absorption. This color change is detected through the transparent plate 9 by an optical brightness sensor 19 arranged on top of the material 21.

The above-described optical brightness sensor 19 is a sensor for discriminating color. Specifically, for example, a CZ type color discrimination sensor manufactured by Keyence Corporation is used. The material whose color changes due to moisture absorption is a sheet formed by sticking water-absorbing white paper to a black double-sided tape.

  In operation, the liquid filling machine 1 of the present invention having the above-described structure is first transported after the empty liquid container 2 before filling is transported by a transport device (not shown), and then the cylinder rod 4 is pushed up as shown in FIG. At the same time that the cap 3 of the container 2 is opened, the staying part 5 is connected to the liquid container 2. FIG. 1 is a sectional view of the entire liquid filling machine 1 with the base 3 opened. Next, the filling liquid control valve 13, the exhaust control valve 14, and the staying liquid control valve 15 are opened, the beverage liquid supply pipe 6 is communicated with the liquid container 2, and the beverage liquid is supplied from the supply source (not shown) to the supply pipe 6 and the staying liquid. The liquid container 2 is filled in the direction of the arrow through the part 5. At the same time, the gas sealed in the liquid container 2 is passed through the gas vent pipe 10 in the liquid container 2, the exhaust hole 7 provided through the cylinder rod 4 in the central longitudinal direction, and then through the exhaust line 8 in the liquid container 2. To exhaust in the direction of the arrow. At this time, the beverage liquid being filled is filled in the staying portion 5.

  When the filling amount of the beverage liquid reaches a predetermined amount set in a flow meter (not shown), the filling liquid control valve 13 of the supply pipe 6, the exhaust valve 14 of the exhaust line 8, and the residence control valve 15 are closed. Thereby, filling of the liquid liquid into the liquid container 2 is completed. At the same time, as shown in FIGS. 2 and 5, the cylinder rod 4 is pulled down to close the base 3 of the liquid container 2, thereby separating the inside of the liquid container 2 from the liquid filling machine.

  The filling liquid control valve 13 and the pressurized gas control valve 16 are opened and the pressurized gas is fed from the pressurized gas introduction pipe 11 through the exhaust hole 7 to the staying part 5 where the staying liquid is retained. The staying liquid inside is pushed out to the supply pipe 6 and reaches the liquid storage chamber 18 of the staying liquid storage section 12.

  As shown in FIG. 1, the staying liquid storage section 12 has a storage chamber 18, a transparent plate 9 disposed on the top, an optical brightness sensor 19 disposed on the top, and a residence opening in the supply pipe 6. A diaphragm 17 that covers the liquid storage chamber 18 by closing the liquid inlet 20 and a compressed air introduction pipe 22 that operates the diaphragm 17 are provided.

  Before the pressurized gas flows into the exhaust hole 7, the liquid storage chamber 18 is covered with the diaphragm 17 as shown in FIG. 1, but when the staying liquid is pushed out to the supply pipe 6 by the pressurized gas, it is compressed. As shown in FIGS. 2 and 3, the diaphragm 17 is pushed up to the ceiling of the liquid storage chamber 18 by the negative pressure and the pressure of the pressurized gas when the compressed air is discharged from the air introduction pipe 22. The accumulated liquid is pushed by the pressurized gas, flows into the liquid storage chamber 18 as indicated by the arrow, and is collected. The diaphragm 17 of the staying liquid storage section 12 is operated such as being pushed up to the ceiling by sucking and discharging compressed air from the compressed air introduction pipe 22 or being pushed down to close the staying liquid introduction port 20.

When the collection of the staying liquid is completed, the filling liquid control valve 13 and the pressurized gas control valve 16 are closed. As a result, the staying liquid is hermetically stored in the liquid storage chamber 18 of the staying liquid storage section 12 while maintaining a pressure necessary for quality as a product liquid. Then, the liquid container 2 is separated from the liquid filling machine 1 and is carried out to the next process by a conveying device (not shown). Thereafter, the next empty liquid container is attached to the liquid filling machine 1 in the same manner as described above, and the filling operation is started in the same manner as described above. The liquid stored in the staying liquid storage unit 12 is used in the next supply.

At this time, If the retentate蓄液unit 12, in particular leakage from the diaphragm 17 of the beverage liquid has occurred, the material 21 that varies in brightness due to moisture absorption becomes white or et black color Kitashi a color change, this change The lightness sensor 19 detects the light through the transparent plate 9 to detect a slight leak.

  Since the liquid filling machine of the present invention having the above-described configuration is provided with the staying liquid storage part in the supply pipe and the staying liquid staying in the staying part is sent to the staying liquid storage part through the supply pipe, It can be recovered without incurring quality degradation, and it is not wastefully used by mixing it with beverage liquid from a supply source (not shown) at the time of filling. Furthermore, since the liquid filling machine of the present invention is provided with a material whose color changes due to moisture absorption in the staying liquid storage part and a sensor for detecting the color change above this material, the staying liquid storage part, particularly the diaphragm, has a beverage. When a liquid leak occurs, this leak is detected by a sensor. Therefore, this invention has high applicability in food factories, such as a beer manufacturing factory and a soft drink manufacturing factory.

It is sectional drawing of one specific example of the liquid filling machine concerning this invention, Comprising: The state which has opened the nozzle | cap | die and is filled with the liquid drink is represented. It is sectional drawing showing the state which closed the nozzle | cap | die of the liquid filling machine of FIG. 1, and is supplying the liquid of a retention part to a retention liquid storage part. It is a partial expanded sectional view of the accumulated liquid storage part concerning the present invention. It is a partial expanded sectional view of the state which opened the nozzle | cap | die. It is a partial expanded sectional view of the state where a mouthpiece was closed.

Explanation of symbols

1 Liquid Filling Machine 2 Liquid Container 3 Base
4 Cylinder load 5 Retention part 6 Supply piping 7 Exhaust hole 8 Exhaust line 9 Transparent plate 10 Degassing pipe 11 Pressurized gas introduction pipe 12 Retained liquid storage part 13 Filling liquid control valve 14 Exhaust control valve 15 Retained liquid control valve 16 Addition Pressure gas control valve 17 Diaphragm 18 Liquid storage chamber 19 Optical brightness sensor 20 Retained liquid inlet 21 Material whose brightness changes due to moisture absorption 22 Compressed air inlet pipe

Claims (1)

A liquid filling machine for filling a liquid container with a beverage liquid through a base, a cylinder rod connected to the base and having an exhaust hole penetrating in a central longitudinal direction, and a staying portion provided at an outer periphery of the cylinder rod A beverage liquid supply pipe connected to the stay part, a stay liquid storage part provided in the supply pipe, and a pressurized gas introduction pipe communicating with the stay part through an exhaust hole, By pushing up and opening the base of the liquid container, the staying part and the exhaust hole communicate with the inside of the liquid container, and the beverage liquid is filled into the liquid container through the staying part from the supply pipe and is enclosed in the liquid container. The gas is exhausted through the exhaust hole, and the cylinder rod is pulled down to close the base of the liquid container, whereby the staying part and the exhaust hole are shut off from the inside of the liquid container and added to the staying part. In a liquid filling machine that introduces pressurized gas from a gas introduction pipe and sends the staying liquid in the staying part to the staying liquid storage part through the supply pipe, the material whose color changes due to moisture absorption in the staying liquid storage part, and this A sensor for detecting a color change is provided at the top of the material, and when leakage of beverage liquid occurs in the accumulated liquid storage part, this leakage is detected by the sensor, and the material whose color changes due to moisture absorption is a white water-absorbing material. A liquid filling machine characterized in that paper is pasted on a black double-sided tape, and when it absorbs water, the base is washed away and turns black .

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