JPH1077051A - Liquid quantitative discharging bag for liquid supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a measuring-discharging without unevenness even when a liquid in a bag becomes less while preventing the outside air from entering the inside, drastically reduce the amount of the residual liquid in the bag, and surely measure-discharge even a liquid of high viscosity. SOLUTION: This liquid quantitative discharging bag comprises of a bag main body 5 which is formed of a material of a high gas barrier property, and the inside of which is partitioned into a storage bag part 2 and a measuring- discharging part 4, and a pressurizing bag 6 which is formed into a double bag state on the external surface at least of the front wall of the storage bag part 2. Then, the pressurizing bag 6 has a, gas feeding nozzle 25, and the liquid storage bag part 2 of the bag main body is pressurized by feeding a gas to the pressurizing bag, and a liquid is forcibly pushed out to a measuring chamber 3 from the liquid storage bag part 2, and by doing so, the liquid of a specified capacity can be always ensured at the measuring chamber 3 at the time of liquid measuring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for dispensing a liquid filled in a bag while maintaining a constant quality for a long time without external air or bacteria entering the bag at the time of dispensing by attaching to a beverage supply device. Liquid dispensing bag that can be dispensed.

[0002]

2. Description of the Related Art The inventor of the present invention has previously provided a bag with a fixed-quantity dispensing unit which can be attached to a fixed-quantity liquid supply device and dispenses a fixed amount of liquid directly from the bag (Japanese Patent Laid-Open No. 6-293348). The bag with a fixed-quantity dispensing part can perform constant-quantity dispensing without contact with the liquid, and can reliably prevent outside air from entering the bag during the dispensing, thereby enabling a long-term small-quantity dispensing of a neutral beverage liquid. It was done. The dispensing bag has a liquid storage section and a liquid measuring section in the bag, and is fixedly sealed from the liquid storing section to the liquid measuring section. At the time of dispensing, the liquid path between the storing section and the measuring section is closed to measure the amount. By releasing the spout at the lower part of the chamber, a fixed amount of liquid is spouted from the measuring chamber without allowing outside air to enter the bag at the time of spouting.

[0003]

However, in the conventional metering bag, when the liquid in the reservoir decreases, the flow of the liquid from the liquid reservoir to the measuring chamber becomes worse, and the amount to be measured cannot enter the measuring chamber. There are cases. For this reason, a head space is provided in the bag in advance, for example, nitrogen gas or the like is sealed to ensure the flow down when the residual liquid is reduced, but the liquid pressure decreases as the liquid in the bag decreases. The volume in the weighing chamber also decreases, and the weighing may be slightly lower than the weighing set value, and the weighing tends to vary. for that reason,
Eventually, there is a problem that the fixed amount dispensing must be terminated in a state where a certain amount of residual liquid is present in the storage bag. Further, providing a head space is in a situation where oxygen is easily mixed therein, which is not desirable in terms of preventing oxidation. Furthermore, it has been difficult to dispense a high-viscosity liquid, for example, ketchup, mayonnaise, curry roux, corn soup, and the like, using a conventional dispensing bag.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and does not provide a head space in the bag in advance, so that even if the amount of liquid in the bag decreases, the metering and dispensing can be performed without fail. A liquid dispensing bag for a liquid dispensing device that can significantly reduce the amount of residual liquid in the bag compared to the conventional one and can reliably dispense even high-viscosity liquid. The purpose is to do.

[0005]

SUMMARY OF THE INVENTION The liquid dispensing bag of the present invention has the above-mentioned problems and is formed in a closed state by a front wall and a back wall formed of a material having high gas barrier properties, and the inside thereof is a storage bag section. And a pressure bag formed in a double bag shape on at least the outer surface of the front wall of the storage bag portion of the bag body. The pouring section is a measuring chamber inlet flow path provided under the liquid storage bag section,
A measuring chamber provided below the measuring chamber inlet flow path, an elongate spout communicating with the measuring chamber below, and the pressurized bag has a gas supply nozzle; The liquid storage bag section of the bag body is pressurized by supplying the liquid, and the liquid stored in the liquid storage bag section is forcibly pushed out to the measuring chamber. This has been solved by adopting a configuration characterized in that it is possible to ensure the above.

The gas supply nozzle may be provided at a position different from a liquid filling port provided on the bag body, or a gas supply nozzle may be provided on an outer peripheral portion of a liquid filling port cylinder for supplying a liquid to a liquid storage section of the bag body. May be formed and provided at the same place as the liquid filling port cylinder. Further, the bag body is formed by welding the four sides of the substantially rectangular front and back walls, and the metering / dispensing section is provided inside the rectangle below the bag body, so that the liquid storage section is twisted. It is easy to handle and can be easily mounted on the liquid filling device.

[0007]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a plan view of an embodiment of a liquid dispensing bag according to the present invention. Liquid dispensing bag 1 of the present embodiment
Is formed by sealing the peripheral portions of the front and back walls formed of a material having high gas barrier properties and flexibility, for example, a multi-layer film of polyethylene / adhesive layer / evar / adhesive layer / polyethylene by heat sealing. A bag body 5 having an interior partitioned into a storage bag section 2 and a liquid metering / dispensing section 4;
A pressure bag 6 (FIG. 2) formed in a double bag shape on the outer peripheral surface of the storage bag portion 2 of the bag body.

The bag body 5 has a substantially rectangular front wall 7 and a rear wall 8.
Are welded to form tapered welding portions 10 and 10 forming the lower side of the storage bag portion 2, and the lower end of the tapered welding portion forms the measuring chamber inlet flow path 11 and the measuring chamber 3. It is made to follow the longitudinal welding parts 12 and 12 to be formed. At the inlet of the measuring chamber, arc-shaped welding portions 13, 13 are formed in which the vertical welding portion protrudes in an arc shape toward the flow path side, and positioning for setting the arc-shaped welding portion to the liquid dispensing device is performed. Hole 1
4 and 14 are formed.

The measuring chamber 3 has a volume capable of accommodating a predetermined amount of liquid, and is welded so that its lower inner edge becomes inclined edges 15, 15 as shown in the figure, and ends of the inclined edge. Rising edge 1 that rises slightly upward in an arc
6 and 16 are formed, and are connected to the elongated spout 17 having a predetermined length through the arc-shaped rising edges 16 and 16. According to the experiment of the present inventor, by making the inlet portion of the spout 17 into such a shape, the spout can flow out most smoothly without sticking or bending regardless of the amount of the internal solution. confirmed. In particular, at the start of pouring, there may be a phenomenon in which the spout outlet is bent due to a sudden change in pressure, but such a phenomenon was completely absent due to the above-mentioned shape.

In the drawings, reference numerals 18 and 19 denote press marks on the inlet port and the front wall facing the outlet so as not to cover the position where the discharge valve of the apparatus is mounted in the state of being mounted on the liquid discharging apparatus. It is an adhesion preventing means provided so that the front wall and the back wall of the spout do not come into close contact with each other when the liquid is poured out, so that the opening can be opened well and surely poured.

A filling port 20 with a closed lid made of a plastic material is integrally attached to the front wall 7 at the upper center of the storage bag section 2 so that liquid can be filled through the filling port 20. However, if the liquid is filled from the upper edge opening of the bag body and the upper edge opening is heat-sealed after filling, the filling port is not necessarily provided.

As shown in FIG. 1, the pressure bag 6 is
A pressure bag front wall 18 and a pressure bag back wall 19, which are formed in a rectangular shape as a whole so as to cover the storage bag portion across the lower end of the tapered welded portion 10 of the storage bag portion 2; The sides are welded together with the three sides of the storage bag portion of the bag body 5, and the lower side is welded to the front wall 7 and the back wall 8 so as to cross the front wall 7 and the back wall 8, respectively. Has become. The portion where the filling port 20 is located is welded to the flange of the filling port integrally with the front wall 7 of the bag body, and the filling port penetrates.
A gas supply nozzle 25 is attached to the pressurized bag front wall 18 so that the storage bag portion can be pressurized by supplying gas to the pressurized bag.

The pressurized bag is configured as described above. By connecting a gas supply pipe to the gas supply nozzle 25 and supplying gas, the storage bag portion of the bag body can be pressurized from the front side. In the present embodiment, the pressure bag 4
Since the sides are welded to the front wall 7 of the bag body, the gas from the gas supply nozzle 25 is not supplied to the back side of the bag body, but the back side of the bag body is similarly pressurized. By welding, the storage bag portion becomes a completely double bag, the strength is improved and the protection of the content liquid is increased, which is preferable.

Reference numerals 23, 23 in the figure denote two locking holes formed in the upper side welded portion 22 of the bag body and the pressure bag.
The upper portion of the bag is locked and supported by engaging the locking hole with a locking projection provided on the liquid discharging device.

[0015] The liquid metering pouch 1 formed as described above.
When the liquid is filled in the bag body through the filling port 20 at the factory, the liquid spreads into the storage bag part 2, the measuring chamber inlet channel 11, the measuring chamber 3, and the spout 17 and is filled in a predetermined amount. You. At that time, the measuring chamber inlet flow path 11, the measuring chamber 3, and the spout 17
Is narrower than the storage bag part 2, but in this embodiment,
Since the entire bag is formed into a fixed volume pouring section 5 having a rectangular shape and the same width as the storage bag section 2, that section is not easily twisted or bent during a distribution stage such as transportation. Very easy to handle compared to

Then, a liquid dispensing bag 1 filled with liquid.
As shown schematically in FIG. 4, the storage bag 2 is placed on the inclined plate 30 provided in the metering device, and the liquid metering portion 4 is suspended downward from the lower end of the inclined plate. Is attached to the liquid metering device. At this time, by fitting the locking holes 23, 23 to the locking projections 27, 27 and the positioning holes 14, 14 to the locking projections (not shown), the liquid crystal dispensing device is accurately positioned at a predetermined position. Can be installed. Then, a gas supply pipe is connected to the gas supply nozzle 25 so that gas can be supplied into the pressurized bag.

In this state, a liquid extruding plate 26 provided in the liquid dispensing apparatus forms a certain space between the liquid extruding plate and a fixed plate 31 provided so as to sandwich the measuring chamber opposite to the liquid extruding plate. As a result, the measuring chamber 3 is pressed, and the liquid that has excessively entered the measuring chamber is pushed out to the storage bag portion 2, and a certain amount of liquid is stored in the measuring chamber. Complete the set.

In this state, the measuring chamber inlet flow path 11
The inlet valve 32 is located at a position facing the outlet port and the outlet valve 33 is located at a position facing the outlet port 17. The inlet valve and the outlet valve are connected to the metering chamber inlet channel 11 or the outlet port by an appropriate actuator. By moving at right angles to the opening 17, the inlet or outlet of the measuring chamber can be opened and closed. After setting the liquid dispensing bag as described above,
The spout valve 33 is operated to close the spout 17 and the spout 1
The lower end of 7 is cut and removed, and the preparation for pouring is completed.

As described above, when the liquid dispensing bag 1 is set and the preparatory work is completed, a fixed amount of liquid is stored in the measuring chamber. 32 closes the measuring chamber inlet channel 11;
When the spout valve 33 releases the pressure of the spout, the spout opens and the flow of the liquid in the measuring chamber starts.

Thereafter, the liquid extruding plate 26 presses the measuring chamber 3 with a time delay, so that the liquid in the measuring chamber can be satisfactorily poured out to the end without remaining in the bag. When the pouring is completed, first, the pouring outlet valve 33 advances, then the inlet valve 32 is retracted, and the liquid push-out plate 16 returns to the initial position where a predetermined gap is formed between the liquid push-out plate 16 and the fixed plate, As a result, the liquid flows from the storage bag section 2
The liquid flows down through 1 and a predetermined amount of liquid flows into the measuring chamber 3 to prepare for the next pouring.

By repeating the quantitative dispensing as described above,
When the liquid in the storage bag 2 becomes lower than a certain level, air or other gas (hereinafter simply referred to as gas) is automatically supplied from the gas supply nozzle 25 into the pressurized bag, and the storage bag 2 is maintained at a constant pressure. Pressurize to force the liquid into the measuring chamber. As a result, a constant amount of liquid is always ensured in the measuring chamber even when the residual liquid is low, and the measuring accuracy is further improved.

In the above embodiment, the gas is supplied into the pressurized bag after the amount of the remaining liquid in the storage bag portion is reduced. However, the pressure adjusting valve is connected to the gas supply pipe connected to the gas supply nozzle. May be provided so that the pressurized bag pressurizes the storage bag portion with a constant gas pressure from the beginning. In this case, as the residual liquid decreases, a large amount of gas is supplied to the pressurized bag in inverse proportion to it, and a constant pressure is always maintained. Regardless of the flow, it always flows down into the measuring chamber in the same manner. Therefore, a constant volume can always be ensured even when the amount of liquid in the storage bag decreases, and the measurement accuracy is further improved. When the remaining liquid decreases and the quantitative property cannot be ensured, the pouring is terminated and replaced with a new bag.However, according to the present invention, the amount of the residual liquid in the bag when the quantitative dispensing becomes impossible is compared with the conventional case. Very low, can be 50cc or less.

As described above, a fixed amount of liquid can be reliably dispensed from the liquid dispensing bag 1 to the last without making any contact with the equipment of the dispensing device.
In addition, since the adhesion preventing means is provided in the measuring chamber inlet channel 11 and the spout 17, even if the width of the measuring chamber inlet channel and the spout is narrow, they do not adhere to each other. Can be reliably poured out.

Although one embodiment of the liquid pouring bag of the present invention has been described above, the present invention is not limited to this embodiment, and various design changes are possible. For example, in the above embodiment, the shape of the bag body is rectangular, but may be other shapes. Further, in the above embodiment, the bag body may be formed in a bag shape with one sheet, and only one side may be welded to the side. In this case, if the pressurized bag is also formed into a bag shape with one sheet and only one side is welded to the side wall of the bag body integrally, the gas supplied from the gas supply nozzle will be It reaches the back wall surface and can pressurize the storage bag part of the bag body from both sides. Further, in the embodiment shown in FIG. 1, the pressure bag back wall 19 is not necessarily provided, and only the front side may be formed as a double bag.

Further, in the above embodiment, the gas supply nozzle 25 is provided separately from the filling port 20 on the front wall of the pressurized bag.
As shown in FIG. 3, if a filling port device in which the filling port and the gas supply nozzle are integrally formed is adopted, the liquid filling port for the bag body and the gas supply nozzle for the pressurized bag are provided in one place. Can be provided.

FIG. 3 shows a filling port device 35 for this purpose. The lower part of the liquid filling port cylinder 36 is formed thick, and a flange 37 for bonding a pressure bag surface wall and a body bag surface wall bonding are formed on the outer peripheral portion thereof. Forming a gas flow path 39 facing the outer peripheral portion of the charging port cylinder 36 so as to be located between the two flanges, and supplying gas so as to communicate with the gas flow path. The nozzle 40 is formed to protrude. The filling port device of the present embodiment is configured as described above, the liquid is filled in the bag body by filling the content liquid from the filling port, and when the gas is supplied from the gas supply nozzle, the gas is supplied to the pressurized chamber. Thus, the storage bag can be pressurized at a constant pressure. In this embodiment, since the liquid filling port and the gas supply nozzle can be provided at one location, the bag can be easily manufactured and can be made compact.

[0027]

According to the liquid dispensing bag of the present invention, even if a head space is not previously provided in the bag and gas is not filled, even if the amount of liquid in the bag decreases, the metering and dispensing can be performed reliably. ,
The amount of liquid remaining in the bag can be extremely reduced as compared with the related art, and moreover, even high-viscosity liquid can be reliably dispensed. Therefore, the oxidation of the content liquid can be reliably prevented, the preservability is good, and even a neutral beverage which is easily oxidized can be supplied in small quantities.

Further, since a pressure bag for pressurizing the storage bag portion is provided, when the liquid in the storage bag portion becomes less than a certain level, air or other gas is supplied into the pressure bag so that the storage bag portion is formed. The liquid can be forcibly extruded into the measuring chamber by applying a constant pressure. As a result, even if the residual liquid is low, a constant amount of liquid is always secured in the measuring chamber, there is little variation, it is possible to improve the measuring accuracy, and it is possible to dispense a fixed amount to the end, and the conventionally extremely high measuring accuracy has been achieved. The present invention can also be suitably applied to the required discharge of a highly concentrated liquid. Then, since the liquid in the storage bag portion is forcibly pushed out to the measuring chamber, the amount of residual liquid in the bag can be extremely reduced as compared with the conventional case, which is economical.
In addition, the present invention can be applied to high-viscosity liquid ketchup, which has been difficult to dispense quantitatively in the past, and to non-beverage fields such as mayonnaise.

Further, since the liquid dispensing bag of the present invention has a double bag on at least one side wall of the storage bag section, the strength is increased, there is no danger of the bag being broken, and it is strong. Easy to mount on Further, the bag body is formed by welding the four sides of the substantially rectangular front and back walls, and the metering / dispensing section is provided inside the rectangle below the bag body, so that the liquid storage section is twisted. It is easy to handle and can be easily mounted on the liquid filling device.

[Brief description of the drawings]

FIG. 1 is a front view of a liquid dispensing bag according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view of another embodiment of the filling port device for a liquid metering pour bag according to the present invention.

FIG. 4 is a schematic diagram showing a state in which the liquid dispensing bag of the present invention is mounted on a liquid dispensing apparatus and dispenses quantitatively.

[Explanation of Signs] 1 Liquid fixed amount dispensing bag 2 Storage bag section 3 Metering chamber 4 Fixed amount dispensing section 5 Bag body 6 Pressurizing bag 7 Front wall 8 Back wall 10 Tapered welding section 11 Metering chamber flow path 14 Positioning hole 17 Injection port 18 Pressurized bag front wall 20 Filling port 21 Lower side welding part 22 Upper side welding part 23 Locking hole 25 Gas supply nozzle 26 Liquid push-out plate 32 Inlet valve 33 Injection valve 35 Filling port device 36 Liquid filling port cylinder 40 Gas Supply nozzle

Claims (3)

[Claims] 1. A bag body which is hermetically formed by a front wall and a back wall made of a material having a high gas barrier property, and the inside of which is divided into a storage bag portion and a metering / dispensing portion, and the bag body. A pressure bag formed in a double bag shape on at least the outer surface of the front wall of the storage bag portion, and the metering / dispensing portion of the bag body is provided in communication with the lower portion of the liquid storage bag portion. A measuring chamber inlet flow path, a measuring chamber provided below the measuring chamber inlet flow path, an elongate spout communicating with the measuring chamber below, and the pressure bag has a gas supply nozzle. By supplying gas to the pressurized bag, the liquid storage bag portion of the bag body is pressurized, and the liquid stored in the liquid storage bag portion is forcibly pushed out to the measurement chamber. A liquid dispensing bag for a beverage supply device, characterized in that a constant volume of liquid can always be secured. 2. The liquid dispensing bag according to claim 1, wherein the gas supply nozzle is formed on an outer peripheral portion of a liquid filling port for supplying a liquid to a liquid storage section of the bag body. 3. The bag body is formed by welding four sides of a substantially rectangular front wall and a back wall, and the metering / dispensing part is provided inside the rectangle below the bag body. Liquid dispensing bag according to item 2.