JP7207048B2 - Method for discharging residual liquid from liquid distribution device and liquid storage container - Google Patents

Description

The present invention relates to a liquid distribution device for pouring a content liquid from a liquid storage container and pouring a predetermined amount of the content liquid into subdivision containers.

A bag-shaped flexible packaging container has been used as a liquid storage container for storing a content liquid to be distributed to subdivided containers.

FIG. 6 is a diagram illustrating a typical form of a bag-shaped liquid storage container. 6(a) shows the appearance of the bag-shaped liquid storage container 2, and FIG. 6(b) shows a cross-sectional view taken along line A-A' in FIG. 6(a).

As shown in FIG. 6(a), the liquid storage container 2 has a top seal portion 21 and a bottom seal portion 22 formed on a tubular resin sheet 2a by heat sealing. is installed. The resin sheet 2a used for the liquid storage container 2 may be of a single layer or multiple layers, and polyethylene and polypropylene-based polymers are widely used as materials for the resin sheet 2a. As shown in FIG. 6(b), the cross section of the liquid storage container 2 is formed by heat-sealing the upper and end portions of two resin sheets 2a. The closed space becomes a storage space 23 for storing the content liquid.

The liquid storage container 2, in which the storage space 23 is filled with the content liquid, is set in a liquid distribution device for injecting a predetermined amount of the content liquid into subdivided containers with the top seal portion 21 provided with the discharge port 20 facing downward. When pouring out a large amount of the content liquid contained in the liquid storage container 2 at once, the discharge port 20 of the liquid storage container 2 is closed with a cap, and the cap is removed so that the discharge port can be opened. When pouring out in small amounts, the discharge port 20 of the liquid storage container 2 is closed with a partition made of plastic or the like, and the liquid storage container 2 is provided with a pouring pipe 24 for sending the contents of the liquid storage container 2 to the liquid distribution device. It penetrates the septum of the exhaust port 20 .

From the standpoint of the yield of the content liquid related to subdividing, it is desirable that all the content liquid stored in the liquid storage container 2 can be discharged. In order to reduce the amount of liquid remaining in the liquid, it has been proposed to incline the liquid storage container 2 so that the liquid is guided toward the discharge port 20 (for example, Patent Document 1). .

However, even if the liquid storage container 2 is tilted so that the liquid content is guided toward the discharge port 20 , the liquid content may remain around the discharge port 20 . FIG. 7 is a diagram for explaining the residual content liquid remaining around the discharge port 20. As shown in FIG.

FIG. 7A shows a case (Case A) in which the tip of the extraction tube 24 does not protrude from the internal exposed portion of the discharge port 20 . It should be noted that the internal exposed portion of the discharge port 20 means the portion of the discharge port 20 protruding inside the liquid storage container 2 . In this case, the residual liquid 3 is a pool of liquid remaining in the gap between the inner exposed portion of the discharge port 20 and the bottom of the storage space 23 . FIG. 7(b) shows a case (Case B) in which the tip of the extraction tube 24 protrudes from the internal exposed portion of the discharge port 20. In this case, the content liquid below the tip of the extraction tube 24 The remaining liquid 3 is the remaining liquid.

Japanese Unexamined Patent Application Publication No. 2011-131908

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to reduce the amount of residual liquid in a liquid storage container caused by the internal exposed portion of the discharge port and the tip position of the extraction pipe.

A first invention for solving the above-mentioned problems is a liquid distribution device for pouring out a content liquid from a discharge port of a liquid storage container and injecting it into subdivided containers, wherein the bottom of a storage space formed inside the liquid storage container The liquid distribution device is characterized by comprising a liquid level swinging mechanism that applies a vibrating force to the residual liquid in the liquid and swings the liquid level of the residual liquid by the vibrating force.

Furthermore, the second invention is the liquid distribution device described in the first invention, wherein the liquid level swinging mechanism provided in the liquid distribution device is a vibration source that generates vibration, and the vibration generated by the vibration source is the vibration source that generates the vibration. The vibration mechanism is characterized by comprising at least a vibration transmission member that transmits vibration to the residual liquid.

Furthermore, a third aspect of the invention is characterized in that, in the liquid distribution device described in the second aspect of the invention, the vibration transmission member is provided at the externally exposed portion of the discharge port.

Furthermore, a fourth aspect of the invention is characterized in that, in the liquid distribution device described in the second aspect of the invention, the vibration transmission member is provided on each of the externally exposed portion of the discharge port and the bottom portion of the storage space.

Furthermore, the fifth invention is the liquid distribution device described in the first invention, wherein the liquid surface swinging mechanism provided in the liquid distribution device is a bottom hitting mechanism that periodically hits the bottom of the storage space with a pad member. Characterized by

Further, in the sixth invention, an excitation force is applied to the residual liquid inside the liquid storage container provided with the discharge port used for discharging the content liquid, and the liquid surface of the residual liquid is oscillated by the excitation force. A residual liquid discharge method for a liquid storage container for discharging residual liquid from the liquid storage container by

The liquid distribution device according to the present invention shakes the liquid surface of the residual liquid inside the liquid storage container and causes the residual liquid to flow into the discharge port or the pouring pipe, thereby removing the residual liquid inside the liquid storage container. is configured to reduce

FIG. 2 is a diagram for explaining the configuration of the liquid distribution device according to the embodiment; The figure explaining the residual liquid discharge method of a liquid storage container. FIG. 2 is a diagram for explaining aspect 1 of the liquid level swinging mechanism included in the liquid distribution device; A diagram for explaining locations where vibration transmission members of the vibration mechanism are provided FIG. 10 is a diagram for explaining aspect 2 of the liquid level swinging mechanism provided in the liquid distribution device; FIG. 4 is a view for explaining a typical form of a bag-shaped liquid storage container; The figure explaining the residual liquid of the content liquid which remains around the discharge port.

Embodiments according to the present invention will now be described. This embodiment is intended to facilitate understanding of the present invention, and the present invention is not limited to this embodiment. In addition, unless otherwise specified, the drawings are schematic diagrams drawn to facilitate understanding of the present invention.

FIG. 1 is a diagram illustrating the configuration of a liquid distribution device 1 according to this embodiment. A liquid distribution device 1 according to the present embodiment is a device for pouring a content liquid from a liquid storage container 2 shown in FIG. 6 and injecting a predetermined amount of the content liquid into subdivision containers.

The liquid distribution device 1 illustrated in FIG. 1 comprises a connecting tube 10 that connects with the outlet tube 24 of the liquid reservoir 2 . In FIG. 1, the tip of the connecting tube 10 is connected to the pouring tube 24, and the rear end of the connecting tube 10 is connected to the device body 12 for controlling the operation of injecting the liquid contained in the liquid storage container 2 into subdivided containers. Connected.

The method of injecting the content liquid contained in the liquid storage container 2 into the subdivision containers is arbitrary, but in FIG. 12, the device main body 12 injects the content liquid that has flowed into the interior of the connecting pipe 10 into subdivided containers using the liquid pump 13. FIG. An operation panel and a display for the liquid storage container 2 can be provided on the device main body 12 .

Furthermore, the liquid distribution device 1 shown in FIG. A liquid level swinging mechanism 11 is provided for swinging by. As shown in FIG. 1, the liquid storage container 2 is attached to the liquid distribution device 1 with the top seal portion 21 facing downward. It becomes the part on the seal part 21 side.

The liquid level swinging mechanism 11 provided in the liquid distribution device 1 is designed to reduce residual liquid generated due to the internal exposed portion of the discharge port 20 and the tip position of the extraction tube 24 in the liquid storage container 2 used for subdividing the content liquid. It is a mechanism for reducing

FIG. 2 is a diagram for explaining the method of discharging the residual liquid from the liquid storage container. By this explanation, the principle of reducing the residual liquid by the liquid level swinging mechanism 11 provided in the liquid distribution device 1 will be explained.

In the state shown in FIG. 8(a), when the liquid level swinging mechanism 11 provided in the liquid distribution device 1 applies an excitation force to the bottom of the liquid storage container 2 provided with the discharge port 20, the excitation force causes the liquid reservoir to accumulate. The liquid surface of the residual liquid 3 in the space 23 oscillates. Note that the fluctuation of the liquid surface means that the liquid surface undulates. When the wave height of the undulation caused by the excitation force exceeds the height of the internal exposed portion of the discharge port 20, part of the residual liquid 3 exceeding the internal exposed portion of the discharge port 20 flows into the discharge port 20 and is discharged. It is discharged outside the liquid storage container 2 through the pipe 24 . When the excitation force is continuously applied, part of the residual liquid 3 flows into the discharge port 20 one after another, and the residual liquid 3 in the liquid storage container 2 can be reduced. It should be noted that even in the case of FIG. 8(b), the residual liquid 3 in the liquid storage container 2 can be reduced by using the oscillation of the residual liquid 3 to flow the residual liquid 3 into the extraction pipe 24. It is clear from this explanation.

A specific aspect of the liquid level swinging mechanism 11 provided in the liquid distribution device 1 will be described. FIG. 3 is a diagram for explaining mode 1 of the liquid level swinging mechanism 11 provided in the liquid distribution device 1. As shown in FIG. In FIG. 3, the liquid level swinging mechanism 11 provided in the liquid distribution device 1 is composed of a vibration source 1100 that generates vibrations that apply an excitation force to the residual liquid 3 in the storage space 23 of the liquid storage container 2, and a vibration source 1100 that generates vibrations. The vibration mechanism 110 is composed of at least a vibration transmission member 1101 that transmits the vibration generated by 1100 to the residual liquid 3 . An eccentric motor or an ultrasonic transducer can be used as the vibration source 1100 . Also, in order to transmit the vibration generated by the vibration source 1100 to the residual liquid 3, it is necessary to form the vibration transmission member 1101 with a material that is transparent to the vibration of the vibration source 1100. FIG. Silicon rubber and ceramics can be considered as such a material.

4A and 4B are diagrams for explaining locations where the vibration transmission member 1101 of the vibration mechanism 110 is provided in the first aspect of the liquid surface swinging mechanism 11 provided in the liquid distribution device 1. FIG.

In case A shown in FIG. 7(a), the liquid pool 3 remains around the discharge port 20, so that the externally exposed portion of the discharge port 20, which is harder than the film, as shown in FIG. 4(a) is covered with the vibration transmitting member 1101, the residual liquid 3 in the case A can be efficiently applied with an excitation force. The externally exposed portion of the discharge port 20 means the portion of the discharge port 20 protruding outside the liquid storage container 2 .

7(b), the residual liquid 3 remains on the entire bottom surface of the liquid storage container 2, so that the discharge port 20 is exposed to the outside as shown in FIG. 4(b). Vibration force can be efficiently applied to the residual liquid 3 in the case B by covering the bottom portion of the storage space 23 with the vibration transmitting member 1101 .

Aspect 2 of the liquid level swinging mechanism 11 provided in the liquid distribution device 1 is an aspect in which the residual liquid 3 in the liquid storage container 2 can be discharged more efficiently. FIG. 5 is a diagram for explaining aspect 2 of the liquid level swinging mechanism 11 provided in the liquid distribution device 1. As shown in FIG. In mode 2, as shown in FIG. 5, the liquid surface swinging mechanism 11 provided in the liquid distribution device 1 is a bottom hitting mechanism 111 that periodically hits the bottom of the storage space 23 with a pad member 1110 .

In mode 2, the liquid level swinging mechanism 11 provided in the liquid distribution device 1 is replaced with the bottom hitting mechanism 111, thereby applying a large-amplitude excitation force to the residual liquid 3 in the liquid storage container 2, thereby causing the liquid storage container to move. The remaining liquid 3 of 2 can be discharged more efficiently. As long as the remaining liquid 3 in the liquid storage container 2 can be discharged, the concrete structure of the bottom tapping mechanism 111 is arbitrary. In FIG. 5, when the pad member 1110 is attached to the tip of the arm 1111 and the cam 1112 is rotated by the motor 1113, the position between the position where the bottom of the storage space 23 is pushed in and the position away from the bottom of the storage space 23 is shown. , and a pad member 1110 attached to the tip of an arm 1111 reciprocates.

Although the present invention has been described so far using a liquid storage container 2 of a type having only one discharge port 20, the present invention can also be applied to a liquid storage container 2 of a type having a plurality of discharge ports 20. I can take it. For example, when the liquid level swinging mechanism 11 provided in the liquid distribution device 1 is used as the vibration mechanism 110, by providing at least the vibration transmission member 1101 for each discharge port 20, the liquid storage container 2 of the type having a plurality of discharge ports 20 can be used. However, the remaining liquid 3 can be reduced.

Reference Signs List 1 liquid distribution device 10 connection pipe 11 liquid surface swing mechanism 110 vibration mechanism 1100 vibration generation source 1101 vibration transmission member 111 bottom tapping mechanism 1110 pad member 1111 arm 2 liquid storage container 20 discharge port 23 storage space 24 pouring pipe

Claims (6)

A liquid distribution device for pouring a content liquid from a discharge port of a liquid storage container and injecting it into subdivided containers, wherein an excitation force is applied to the residual liquid at the bottom of a storage space formed inside the liquid storage container, A liquid distribution device comprising a liquid level swinging mechanism for swinging the liquid level of the residual liquid by the excitation force. The liquid level swinging mechanism provided in the liquid distribution device is a vibrating mechanism comprising at least a vibration generating source that generates vibration and a vibration transmitting member that transmits the vibration generated by the vibration generating source to the residual liquid. 2. A liquid dispensing device according to claim 1, characterized in that: 3. The liquid dispensing device according to claim 2, wherein said vibration transmitting member is provided at an externally exposed portion of said discharge port. 3. The liquid dispensing device according to claim 2, wherein said vibration transmitting member is provided on each of the externally exposed portion of said discharge port and the bottom portion of said storage space. 2. The liquid distribution device according to claim 1, wherein said liquid level swinging mechanism provided in said liquid distribution device is a bottom hitting mechanism for periodically hitting the bottom of said storage space with a pad member. By applying a vibrating force to the residual liquid inside the liquid storage container provided with a discharge port used for discharging the content liquid, and vibrating the liquid surface of the residual liquid by the vibrating force, the liquid can be stored. A residual liquid discharge method for a liquid storage container for discharging residual liquid from a container.

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