JP4060920B2 - Large bag-in-container - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a large bag used when filling a large bag with liquid food such as milk, cream, fruit juice, liquor, soft drink, or liquid medicine, and a container for storing the large bag.
That is, a large gusset bag having an internal volume of 300 to 1200 liters and having a filling port for filling a liquid and an outlet for taking out the liquid is housed in a four-fold folded assembly container, The present invention relates to a large bag-in container that can be filled with liquid.
[0002]
[Prior art]
Conventionally, cans such as 1-toe cans have been widely used as large liquid containers, but switching to a bag-in-box (hereinafter referred to as BIB) that is easy to dispose of is proceeding from the viewpoint of disposal of containers. .
In the case of a large container such as BIB, if the container is filled with the contents and then heat sterilized, it takes a long time for the heat sterilization, and the contents are altered by heating, which makes the food worthless. Therefore, for the purpose of long-term storage, an aseptic filling method in which the bag is sterilized and the contents are sterilized separately to prevent the contents from being altered by heating is employed.
Therefore, when milk, cream, fruit juice, etc. are used for business purposes and need to be stored for a long time in a large container, aseptically filled BIB is often used.
In addition, bulk transportation is generally performed for factory-to-factory transportation and heavy users in the company from the viewpoint of transportation efficiency and work efficiency, and 500 to 1000 liter aseptic tanks are used.
[0003]
[Problems to be solved by the invention]
However, in the case of BIB, since paper cardboard is used for the box, there is a problem of strength, and usually about 10 to 20 l is often used.
In addition, a plastic container is used instead of a box, and an internal volume of about 200 l is also used. However, in the case of a large-capacity bag-in container (hereinafter referred to as a large BIC) such as 300 to 1200 l, There was a problem that pinholes were generated in the bag during transportation and the contents leaked, so that practical use was very difficult.
In the case of bulk transportation using large tanks, it is necessary to make the large tanks a material that can withstand acid cleaning and alkali cleaning, and use stainless steel tanks. Since it is necessary, it is necessary to make it a pressure vessel, and it becomes very expensive.
In addition, the aseptic tank has the disadvantage that the apparatus is large and the transportation cost is high.
[0004]
When the gusset bag has a large capacity of 300 to 1200 l, even if the bottom part is folded into a square shape according to the shape of the container loading surface, if you lift it by hand when you put it in the container, the bottom square shape will be broken and set well in the container I couldn't.
Further, when the filling port of the large gusset bag was set in the filling nozzle of the filling machine, sagging occurred in the gusset bag, which could not be sufficiently adjusted by hand. For this reason, a gap is generated between the container and the bag, which may cause trouble during transportation.
Furthermore, there is a problem that a gusset bag is forcibly bent or rubbed at the corner of the container during transportation of a large BIC, and pinholes are easily generated.
[0005]
[Means for Solving the Problems]
  In order to solve the above problems, the structure of large bags and containers was as follows.
  In a bag-in-container comprising a large bag for filling liquid and a container for storing it, the large bag isA gusset bag having folds on both sides, the bottom of the gusset bag is heat-sealed and then formed into a quadrangular shape, and a substantially corrugated cardboard support plate is affixed to the rectangular portion, and the gusset bag The upper part of the front or rear surface of the bag is provided with a filling port for filling the liquid, and the lower part of the folding part of the gusset bag is provided with an outlet for taking out the liquid., The container,In a four-fold folding assembly containerThe bottom portion has an inclination angle, and a gate for taking out contents is provided on the side plate at the lowest point of the inclination, and triangular prisms are attached to the four corners of the container.A large bag-in-container characterized by
  Moreover, after the bottom seal portion of the gusset bag was heat-sealed, the upper portion of the heat seal portion was bent and the bent portion was bonded with an adhesive tape.
[0006]
The filling port is composed of a spout and an inner plug, and the spout and the inner plug have a shape that can be sealed by fitting, and the spout and the inner plug are relative to the packaging material before and after the large bag. The large bag-in-container is characterized in that it is heat-sealed so that it can be fitted to each other at the positions.
Further, the outlet comprises a spout and an inner plug, the spout and the inner plug have a shape that can be sealed by fitting, and the spout is heat-sealed at the lower part of the folded portion of the gusset bag, The spout opening is a large bag-in-container characterized in that the inner plug is fitted and sealed from the inside of the bag.
Further, the large bag is a laminated material made of stretched nylon, polyethylene, aluminum foil, or a laminated material of stretched nylon and polyethylene, and the innermost layer is a double bag or triple bag made of a polyethylene film, And it was set as the large sized bag-in-container characterized by having an internal capacity of 300-1200 l.
[0008]
That is, when filling the contents into a bag-in-container, if the flexible bag of the inner bag has a large capacity, such as 300 to 1200 l (liter), the filling machine is used for a large-capacity flexible bag (hereinafter referred to as a large bag). It is very difficult to store a large-sized bag with a large capacity in a container, and therefore it is necessary to store the large-sized bag in the container in advance before filling the contents.
Therefore, it is possible to easily fill even when the filling port is attached to the upper part of the large bag, and the contents are stored in the container with an outlet provided at the lower part of the large bag. Can be taken out easily.
[0009]
In addition, in order to make it easy to store the large bag in the container, the large bag is a gusset bag that is folded on both sides, the bottom is folded in a square shape, and the same shape of cardboard is pasted on the bottom of the square shape, Even when the large gusset bag is lifted, the rectangular shape at the bottom is maintained to facilitate storage in the container.
Furthermore, a filling port is provided in the upper part of the front (or rear) packaging material that constitutes the large gusset bag, and the outlet is the lower part of the folding part of the packaging material on both sides constituting the gusset bag (on either the left or right side). This makes it easy to set the gusset bag in the container, and when the contents are filled into the gusset bag stored in the container, the gap between the container and the gusset bag is reduced so that the filling is performed smoothly.
Furthermore, after the bottom seal part of the gusset bag is heat sealed, the bottom seal part is folded from the top of the heat seal part, and the bent part is bonded with an adhesive tape such as cellophane tape to form the bottom seal part into a folded shape. The internal pressure of the contents is relaxed so that it is not directly applied, and the internal pressure of 300 to 1200 l can be withstood.
[0010]
In addition, the side plate at the bottom of the container is provided with a single door to protect the gate for taking out the contents and the gate, and the large gusset bag is installed in the large gusset bag with the large gusset bag stored in the container. The contents can be easily taken out from the outlet.
In addition, the bottom of the container is inclined so that the center has a groove shape, and the groove is inclined so that the gate for taking out the contents is lower. When the contents were taken out from the bag, the liquid contents were easy to flow to the outlet and the remaining amount of the contents was reduced.
In addition, bag-in containers are prone to pinholes when large bags are rubbed or forcibly bent at the corners of the container during transportation. A triangular prism was attached to reduce excessive bending and friction at the corners to prevent pinholes in large gusset bags.
In the assembly type container, since the side surface of the side plate is rubbed at the corner portion of the end plate during the assembly or folding, the Teflon pressure-sensitive adhesive tape (hereinafter referred to as “teflon adhesive tape”) is used. Teflon tape) was applied to improve the sliding property with the side surface of the side plate, making it easy to assemble or fold and prevent the side plate from being damaged.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic view showing the shape of a large gusset bag of the present invention, and FIG. 2 is a perspective view showing an outline of a large BIC of the present invention.
FIG. 3 is an explanatory view showing a set state of the bag when an opening is provided at the side film folding portion of the large gusset bag to fill the contents.
FIG. 4 is an explanatory view showing a set state of the bag when an outlet is provided in the rear film of the large gusset bag to fill the contents.
FIG. 5 is an explanatory view when a large gusset bag is manufactured, and is a view when the films on both sides are folded and overlapped on the front and rear films.
FIG. 6 is an explanatory diagram when the filling port is attached to the film before and after the gusset bag, and FIG. 7 is an explanatory diagram when the outlet is attached to the side film of the gusset bag.
FIG. 8 is an explanatory view when a bottom seal is formed on a large gusset bag and the bottom portion is folded into a square shape.
FIG. 9 is a view showing the structure of the lid, the assembly part, the hopper part, and the assembly part face plate of the assembly type container.
FIG. 10 is an explanatory view when the outlet is fixed to the gate portion of the assembly-type container, FIG. 11 is a view showing the shape of the bottom portion of the assembly-type container, and FIG. 12 is an explanation when the assembly-type container is assembled. FIG.
FIG. 13 is an explanatory diagram when the contents are taken out from the large BIC using the take-out device.
FIG. 14 is a diagram showing the size of a large gusset bag (capacity 1000 l) produced in Example 1, and FIG. 15 is a diagram showing the size of a large gusset bag (capacity 500 l) produced in Example 3. is there.
FIG. 16 is a diagram showing the shapes and sizes of the filling port and the outlet prepared in Example 1.
FIG. 17 is an explanatory diagram when the large BIC of the present invention is aseptically filled with the liquid according to the first embodiment.
FIG. 18 is an explanatory diagram when a large BIC of the present invention is filled with liquid according to the third embodiment.
[0012]
As shown in FIG. 1, the large BIC of the present invention accommodates a large gusset bag 1 having a filling port 3 and an outlet 4 in a prefabricated container 2 as shown in FIG. The large gusset bag 1 is filled with the contents from the mouth 3 and the large gusset bag 1 is filled with the contents, and the large gusset bag 1 is transported together with the container 2 as shown in FIG.
Further, the user takes out the necessary amount of contents from the outlet 4 of the large gusset bag 1 using the gate 24 provided in the container 2 with the large gusset bag 1 in the container 2. It is made to be able to.
[0013]
The large gusset bag of the present invention has a filling port 3 and an outlet 4 as shown in FIG. 1, and has a rectangular shape (rectangular shape or square shape) with the bottom of the gusset bag matching the shape of the loading surface of the container. When the gusset bag is lifted by hand to attach the same shape cardboard or plastic or metal plate to the square part and put it in the container, the square shape at the bottom will not collapse The large gusset bag is easy to store in the container.
[0014]
Further, as shown in FIG. 1, the gusset bag is provided with a filling port 3 in the front film of the large gusset bag 1 and an outlet in the folded portion of the side film 12 of the large gusset bag. When filling the container, the gap between the container and the gusset bag is reduced, and the filling is performed smoothly.
[0015]
Below, the filling method of the contents to a gusset bag is demonstrated.
FIG. 3A is a side view when a large gusset bag is set in the filling machine, and FIG. 3C is a diagram showing the shape of the upper portion of the bag when the large gusset bag is viewed from above. is there. FIG. 3B is a side view showing the flow of the contents when the contents are filled from the filling port.
As shown to Fig.3 (a), when a gusset bag is set to a filling machine, the outlet 4 fixed to the container is located in the other side (filling machine side) of a man side.
Therefore, the large gusset bag 1 is desired to be fixed to the rear side of the assembly-type container 2 together with the outlet 4, so that the filling port 3 of the gusset bag is connected to the filling nozzle (the same position as the filling port 3) of the filling machine 8. When setting the bag, you can adjust the slackness of the bag by pulling the bag toward you.
That is, since the upper part of the gusset bag 1 can be set by pulling forward, as shown in FIG. 3C, the contents are filled in a state where the slack of the bag is reduced.
[0016]
Also, as shown in FIG. 3 (b), when the gusset bag set as described above is filled with the contents, an inclination 33 is provided at the bottom of the container, and the position of the outlet 4 is low. The contents 5 are easy to flow to the rear side of the gusset bag.
Therefore, when filling the contents while the bag is pulled, the contents flow to the back side of the bag and the contents are filled from the back side, so there is a gap between the bag and the back side of the container. Can not be.
During filling the contents, both sides where the gap between the container and the bag is likely to be adjusted can be adjusted by hand, so there is almost no gap between the container and the bag, and the gusset bag is filled with the contents ideally. can do.
[0017]
On the other hand, when the filling port is provided in the front film 11 of the large gusset bag 1 and the outlet is provided in the rear film 11a (rear film), when filling the contents, FIG. As shown in FIG. 4, the outlet 4 is fixed to the side surface of the container (the right side in the case of FIG. 4A).
Fig. 4 (a) is a side view when the outlet is fixed to the side of the container and set in the filling machine as described above, and Fig. 4 (c) is when the large gusset bag is viewed from above. It is the figure which showed the shape of the bag upper part. Moreover, FIG.4 (b) is the side view which showed the flow of the content when the content is filled from the take-out port.
When the outlet 4 is fixed to the side surface of the container, when the gusset bag is set in the filling nozzle (the same position as the filling port 3) of the filling machine, the gusset bag is shown in the lateral direction (see FIG. 4C). 4 (c), it is difficult to adjust the slack of the gusset bag on the rear side of the container.
[0018]
Further, as shown in FIG. 4B, when the gusset bag set as described above is filled with the contents, since the right side of the slope 33 at the bottom of the container is lowered, the contents 5 are gusset bags. It is easy to flow to the right side of.
Therefore, when the contents are filled while the bag is pulled, the contents first flow to the right side of the bag, so that a gap is easily formed between the bag and the rear side of the container.
In particular, the left back of the container tends to sag into the bag, and the filling of the contents is also delayed, so the gap between the container and the bag is likely to come out.
In addition, during the filling of the contents, the bag behind the container cannot be touched by hand because the filling machine gets in the way, so the gap between the container and the bag cannot be adjusted, and there is no gap between the container and the bag. It is impossible to do.
In particular, in the case of an aseptic filling machine, there are many parts heated by steam for heat sterilization, etc., and it is often dangerous to touch the aseptic filling machine.
Therefore, it is impossible to adjust the gusset bag in the back of the container by hand, and the back part of the container easily forms a gap with the bag.
[0019]
Next, the manufacturing method of a large gusset bag is demonstrated.
The large gusset bag 1 is actually a double bag made of a gas barrier laminate (or non-gas barrier laminate) and one polyethylene film (hereinafter referred to as PE film), or a gas barrier laminate. A triple bag made of two PE films is often used. Here, in order to simplify the description, a case where one film is used will be described.
[0020]
As shown in FIG. 5, the large gusset bag of the present invention has two films constituting the front and rear of the large gusset bag, that is, a front film 11 and a rear film 11a, and two films constituting both sides, That is, it is comprised from the side film 12 (right side) and 12a (left side) in which the folding part 13 was formed.
First, a hole (filling hole 3a) for heat-sealing the spout 14 is formed in the front film 11 constituting the front surface of the large gusset bag, and as shown in FIG. The filling port spout 14 is inserted from the lower side in (a), the outside of the flange 16 of the spout 14 and the inside of the front film 11 are heat sealed, and the filling port spout 14 is attached.
Further, as shown in FIG. 6B, the flange 16 of the filling port inner plug 15 is heat-sealed on the back film 11a as shown in FIG. 6B. The inner plug 15 is attached.
Next, as shown in FIG. 6C, the inner cap 15 is fitted to the spout 14 and the two upper and lower films are overlapped.
As described above, when the inner plug 15 is fitted to the spout 14, the O-ring 17 is fitted to the inner plug 15 so as to prevent the contents from leaking from the fitting portion.
[0021]
Further, as shown in FIG. 5, an outlet hole 4a is formed below the folding portion 13 of the right film 12 (or the left film 12a) of the side film, and the hole is removed as shown in FIG. The outlet spout 14a is inserted from the inside with the inner plug 15a fitted therein, and the side film 12 is heat-sealed to the flange 16 of the spout 14a, and the outlet 4 is attached.
When the spout 14a for the outlet and the inner plug 15a are fitted, the O-ring 17 is fitted and fitted in the same manner as in the filling port to prevent liquid leakage.
The inner plug 15a is fitted into the outlet spout 14a from the inside, and further provided on the flange of the inner plug 15a, thereby preventing the inner plug 15a from jumping out of the outlet spout 14a due to internal pressure.
As shown in FIG. 7, since the film is not heat-sealed in the inner plug 15a and is merely fitted to the spout 14, as described later, by removing the inner plug 15a from the spout 14, The contents can be taken out.
[0022]
Next, as described above, the front and rear films to which the filling port 3 is attached and the side film (right) to which the outlet 3 is attached and the other side film 12a are overlapped as shown in FIG. The films 11 and 11a and the side films 12 and 12a are heat-sealed in the vertical direction in FIG.
Next, the upper and lower sides are heat-sealed to form a gusset bag, and as shown in FIG.
As mentioned above, when heat-sealing the top and bottom of the film to make a gusset bag, the outside of the folded side film is a biaxially stretched nylon (hereinafter referred to as ON) film without heat sealability. Not heat sealed.
That is, both the upper part and the lower part are not heat sealed on the outside (side films) of the folded part of the side film.
[0023]
As shown in FIG. 8C, the bottom heat seal includes four folded portions, that is, a folded portion of the front film 11 and the side film (right) 12, and a rear film 11b and the side film (right) 12. The folded portion of the front film 11 and the side film (left) 12a, the folded portion of the rear film 11b and the side film (left) 12a, and the front film 11 and the rear film 11b are sealed by heat sealing.
The bottom heat seal portion 7a is formed of a biaxially stretched nylon (hereinafter referred to as ON) film on the surfaces of the side films 12 and 12a. Become.
Further, as shown in FIG. 8 (b), the bottom heat seal portion 7a is bent at the top of the bottom heat seal portion 7a, and the bent portion is adhered with an adhesive tape or the like to protect the bottom heat seal portion 7a. The bottom heat seal portion 7a is shaped so that the pressure from the contents is not directly applied. In this way, by forming the bottom seal portion 7 in a folded shape, the pressure applied to the bottom heat seal portion 7a is alleviated even when a large volume of liquid such as 300 to 1200 l is placed in a large gusset bag. As a result, liquid leakage can be prevented.
[0024]
Next, the gusset bag in which the bottom seal portion 7 is formed in a folded shape is folded into a rectangular shape as shown in FIG. A cardboard having the same shape as that of the bottom portion 19 is attached to the bottom portion 19 folded in a square shape with an adhesive tape or the like so that the large gusset bag 1 can be easily assembled and set in a container.
What is pasted on the bottom 19 is not limited to corrugated cardboard, but can be a plastic plate, metal plate, etc., as long as it is plate-shaped, but when the contents are put into a large gusset bag in an assembly container, the contents As long as it is deformed in accordance with the shape of the bottom of the assembly container with the weight of.
When the plate-like material is hard and does not deform according to the inclination of the container bottom, when the content is taken out from the take-out port, the flow of the content to the take-out port becomes worse and the residual amount increases.
[0025]
As shown in FIG. 9A, the assembly type container 2 of the present invention includes a hopper portion 22 fixed to the pallet 21, an assembly portion 25, and a lid 26.
As shown in FIG. 9, the hopper portion 22 is provided with a gate 24 for taking out contents from a part of the side plate constituting the hopper portion 22.
Further, as shown in FIG. 9B, Teflon tape 28b (a Teflon adhesive tape) is attached to the corner portion 28a on both sides of the end plate 28 of the assembly portion 25. Therefore, the slipperiness of the inner side surface of the side plate 27 and the corner portion 28a of the end plate 28 is improved, and scratches generated on the side surface of the side plate 27 due to rubbing by the corner portion of the end plate can be prevented during assembly or folding. At the same time, since the slipperiness is improved, the side plate and the end plate can be easily assembled or folded.
As shown in FIG. 9 (b), the Teflon tape is applied to the entire surface of the corner portion of the face plate that contacts the inside of the side plate. That is, when the assembly type container is made of stainless steel, the corners on both sides of the end plate have a U-shaped cross section as shown in FIG. Affix the Teflon tape from top to bottom in the height direction of the end plate.
[0026]
A single door 23 for protecting the gate 24 is provided in front of the gate 24 provided in the hopper 22.
As shown in FIG. 10A, the gate 24 is formed by making a semicircular hole in the fixed plate 31 and the moving plate 32 and providing an outlet fixing hole 30.
In order to fix the outlet to the gate of the container, the moving plate 32 can be moved up and down, so the moving plate 32 is moved upward and attached to the large gusset bag on the semicircular fixed plate 31. Then, the spout 14a at the outlet is fitted, and the moving plate 32 is further pushed down to fit the semicircular moving plate 32 into the spout 14a at the outlet, so that the outlet spout 14a is connected to the gate as shown in FIG. It is completely fixed to the fixed plate 31 and the moving plate 32.
In addition, a single door 23 is provided in front of the outlet, and the single door 23 is closed while the contents are being transported, so that a bar or the like does not come into contact with the outlet due to an accident. Yes.
[0027]
Further, as shown in FIG. 11A, the bottom portion of the hopper portion 22 is inclined so that the gate 24 portion is the lowest so that the contents can easily flow toward the gate 24. .
That is, as shown in FIG. 11A, the bottom 33 has the gate 24 with both sides (side plate side) raised so that the center becomes a groove shape, and further on the opposite side to the gate side. The bottom 33 is lowest.
When a large gusset bag is set in the assembly type container, it is necessary to set so that the outlet 4 attached to the large gusset bag is positioned at the gate 24.
[0028]
Moreover, the assembly-type container 2 of this invention is assembled in the procedure as shown to Fig.12 (a)-(f).
That is, as shown in FIG. 12A, the assembly type container 2 is stored in a state where the plates constituting the side plate and the end plate of the assembly type container are folded in the hopper portion 22, and the lid is placed on the lid. 26 is covered.
To assemble the container, as shown in FIG. 12 (b), the container lid is removed, and the one side plate 27 is raised first, and then the other side plate 27 is raised as shown in FIG. 12 (c).
Next, as shown in FIGS. 12 (d) and 12 (e), the end plate 28 is raised to complete the assembly-type container 2 as shown in FIG. 9 (e).
At this time, since Teflon tape is affixed to the corner portions on both sides of the end plate 28, the inner surface of the side plate 27 where the end plate 28 is raised and the side plate 27 is not damaged.
When the assembly type container is made of stainless steel, the inner surface of the side plate 27 is easily rubbed against the corner portion of the end plate 28 during assembly or folding. It is necessary to apply Teflon tape to the corners on both sides.
[0029]
A large gusset bag 1 as shown in FIG. 1 is placed in the assembling container 2 and moved to a place where the filling machine is located. A filling nozzle is connected to the filling port 3 of the large gusset bag 1 according to a conventional method. Fill the contents.
Since the large gusset bag of the present invention is in a state where the filling port is sealed, aseptic filling is possible. That is, when a filling nozzle is connected to the filling port 3, the filling port 3 and the filling nozzle are hermetically sealed and the gap portion thereof is steam sterilized, so that aseptic filling becomes possible.
For aseptic filling, the inner surface of the large gusset bag needs to be sterilized with gamma rays in advance.
The large-sized gusset bag 1 that has been filled is sealed by fitting a spout at the filling port and an inner stopper, and further, a lid 26 is attached to the assembly-type container 2 and, as shown in FIG. The lid 26, the side plate 27, and the end plate 28 are fixed using, and transported to the user.
[0030]
The contents filled in the large BIC of the present invention are carried into the user, and a necessary amount is taken out using the outlet attached to the large gusset bag.
Hereinafter, a method for taking out the contents from the outlet of the large gusset bag will be described.
The outlet 4 attached to the large gusset bag 1 is fixed to the gate 24 of the assembly-type container 2 as shown in FIG.
That is, the outlet spout 14a is fixed between the fixed plate 31 and the movable plate 32 constituting the gate 24 in a state in which the outlet plug 15a is fitted and sealed to the outlet spout 14a. .
[0031]
In order to take out the contents using the take-out port 4, as shown in FIG. 13, the take-out device 40 is used to take out the contents as follows.
FIG. 13 shows a state in which the connection pad 41 (which is a slot) of the take-out device 40 is fitted to the outlet spout 14 a and fixed with the clamp 42, and the take-out device 40 is connected to the outlet 4. ing.
The upper half in FIG. 13 is a view in which the take-out device 40 is connected to the outlet, and the inner plug 15a of the outlet is fitted to the spout 14a and is closed, and the lower half is the inner plug of the outlet. It is the figure which 15a is removed from the spout 14a and is in the open state.
[0032]
In order to take out the contents from the take-out port using the take-out device 40, first, the handle 47 of the take-out device 40 is turned to move the discharge valve body 45 (to the left in FIG. 13). The tip is brought into close contact with the outlet 4, the connection pad 41 is fitted into the spout 15 a, and the connection pad 41 is fixed with the clamp 42 to connect the outlet 4 and the discharge valve body 45.
Next, the handle 46 is turned to insert the tip of the opening / closing shaft 43 into the screw hole 18 provided in the inner plug 15a of the outlet, and the handle 46 is further turned to move the opening / closing shaft 43 to the left in FIG. The inner plug 15a is removed from the spout 14a and pushed into the large gusset bag 1. As a result, the inside of the large gusset bag 1 and the take-out pipe 44 of the take-out device 40 communicate with each other. By opening a valve (not shown) provided in the take-out pipe 44, the contents are removed from the gusset bag as shown in FIG. As indicated by the arrow, it flows into the take-out pipe 44 and the required amount of the contents of the gusset bag can be taken out. When the gusset bag is to be sealed again after the contents are taken out from the gusset bag, the handle 46 is turned in the opposite direction, the inner plug 15a is moved and fitted into the spout 15a to be sealed.
[0033]
【Example】
Hereinafter, the present invention will be described in more detail based on examples.
Example 1
First, a large BIC gusset bag (volume: 1000 l) having the following specifications was prepared.
(1) Packaging material: ON 15 / LMD / PE 90 // PE 50 // PE 50 (inner surface)
The symbols are as follows, the numbers indicate the thickness of the film, and the unit is μm.
・ ON: Biaxially stretched nylon
・ PE: Polyethylene
・ LMD: Lamination by dry lamination method
-//: ON / LMD / PE laminated film, PE 50 film, and PE 50 and PE 50 are not adhered to each other to form a triple bag.
[0034]
(2) Bag size and bag making: Using the above three films, a large gusset bag 1 having the dimensions shown in FIG. 14 was prepared.
The heat seal width of the gusset bag is 10 mm, the bottom heat seal part is folded at the top, and the folded part is bonded with a plastic adhesive tape to form a folded shape, forming a bottom seal part 7 with a width of 30 mm. did.
Moreover, the corrugated cardboard (A flute) of the same shape was affixed on the bottom part of the large gusset bag using a double-sided adhesive tape.
[0035]
{Circle around (3)} The filling port and outlet have the sizes shown in FIGS. 16 (a) and 16 (b) and were produced by PE injection molding.
Further, a PE cap was provided outside the filling port and the outlet to prevent contamination.
The large gusset bag was folded and put into five cardboard boxes, and sterilized by γ-ray irradiation according to a conventional method. The absorbed dose of γ rays was set to 15 kGy (kilo gray) on the inner surface of the bag.
[0036]
The assembly-type container was made of stainless steel and was a four-sided foldable container with the following dimensions.
(1) Internal dimensions: 1003 x 1009 x 975H (unit: mm)
(2) Outer dimensions: 1100 × 1100 × 1280H (unit: mm)
▲ 3 ▼ Weight: 131kg
(4) Internal volume: 1.06m^Three
▲ 5 ▼ Folding height: 467mm
The folded container was assembled according to the procedure of FIGS. 12B to 12E, and an assembly type container having the above dimensions was assembled as shown in FIG. 12E.
In addition, the thing which affixed the Teflon tape was used for the corner part of the both sides of the two end plates. That is, as shown in FIG. 9 (b), Teflon tape is applied to the corners 28a on both sides of the end plate 28 from the top to the bottom of the end plate 28 as shown in FIG. 9 (c). Used.
Next, a right triangular prism having a cross section of a right triangle and a right side of 90 mm and a length of 975 mm made of corrugated cardboard was attached to the four corners of the container to prevent the occurrence of pinholes in the gusset bag.
[0037]
Next, the sterilized large gusset bag 1 is put in the assembly type container 2 so that the filling port 3 is on the upper side and the outlet 4 is positioned at the gate 24 of the container, and the outlet spout 14a is placed in the container. The single door 23 was closed and locked.
The assembly type container 2 containing the large gusset bag 1 was transported by a forklift to a place with an aseptic filling machine and filled with the contents by the following method.
[0038]
First, as shown in FIG. 17 (a), the tip of the filling nozzle 50 of the aseptic filling machine and the filling port 3 of the large gusset bag 1 (in which the inner plug 15 is fitted and sealed with the spout 14). Close contact. Next, steam 52 was supplied from a steam supply pipe provided in the filling nozzle to sterilize the gap between the filling port 3 and the filling nozzle 50, and after the sterilization was completed, the supply of steam was stopped.
Next, as shown in FIG. 17B, the inner plug 15 is pulled out by using the inner plug attaching / detaching device 53 to remove the inner plug 15 from the spout 14, and at the same time, the piston 51 of the filling nozzle is pulled out. The contents were allowed to flow out from the tip of the filling nozzle, and sterilized coffee cream was filled as the contents.
The filling amount was measured using an electromagnetic flow meter, and the total filling amount was 1000 l.
[0039]
After the completion of filling, as shown in FIG. 17C, the piston 51 is pressed against the tip of the filling nozzle 50 to stop the outflow of the contents 5, and then the inside of the spout 14 and the inner plug 15 are washed by blowing steam 52. did.
Next, with the steam 52 blown in, the inner plug 15 is pushed into and fitted into the spout 14 using the inner plug attaching / detaching device 53, and the large gusset bag 1 is sealed, removed from the filling nozzle, and placed on it. I put a cap.
The large gusset bag filled with the contents is covered with the lid 26 in the state of being stored in the assembling-type container 2, and as shown in FIG. did.
[0040]
The large BIC filled with the contents as described above was carried into the user, and the user took out the contents as follows.
First, the single door 23 at the lower part of the container was opened, the outlet 4 fixed to the gate 24 appeared, and the outer cap was removed.
Next, as shown in FIG. 13, the handle 47 was turned to move the discharge valve body 45, and the tip of the discharge valve body 45 was brought into close contact with the outlet 4.
Next, the connection pad 41 was fitted to the spout 15a, the connection pad 41 was fixed by the clamp 42, and the outlet 4 and the discharge valve body 45 were connected. At the same time, the handle 46 was turned to insert the tip of the opening / closing shaft 43 of the take-out device 40 into the screw hole 18 of the outlet inner plug 15a. (The upper half plugged in FIG. 13)
[0041]
Next, the handle 46 is turned to move the opening / closing shaft 43 to the left in FIG. 13, the inner plug 15a is removed from the spout 14a and pushed into the large gusset bag 1, and the inside of the large gusset bag and the take-out device 40 are removed. The take-out pipe 44 was communicated.
The necessary content could be taken out by opening and closing a valve (not shown) provided in the take-out pipe 44.
After collecting a necessary amount of the contents, the handle 46 was turned in the opposite direction to the previous time, the opening / closing shaft 43 was moved to the right in FIG. 13, and the inner plug 15a was fitted to the spout 14a and sealed. Next, the take-out device 40 was removed from the outlet, and the large gusset bag contained in the container was stored in a warehouse.
[0042]
(Example 2)
Similar to Example 1, a gusset bag (with an internal volume of 1000 l) having the following specifications was produced.
Packaging material:
ON 15 / ECPE 15 / AL 7 / ECPE 15 / PE 30 // PE 50 // PE 50 (inner surface)
In addition, the said ECPE shall show PE when laminated by the extrusion method. The numbers indicate the thickness of the film as in Example 1.
The large gusset bag was sterilized by γ-ray irradiation as in Example 1.
Moreover, the assembly type container used the thing similar to Example 1, and set the large gusset bag in the container similarly to Example 1. FIG.
[0043]
As described above, the assembly-type container in which the large gusset bag was set was transported to the place where the filling machine was installed.
The filling machine was filled with orange juice as the contents using an aseptic filling and filling machine in the same manner as in Example 1.
The large gusset bag filled with the contents was transported to the user in the same manner as in Example 1, and the contents were taken out by the user using the take-out device.
[0044]
(Example 3)
Using the same packaging material as in Example 1, a large gusset bag having an internal volume of 500 l was produced in the same manner as in the example. The dimensions of the gusset bag are as shown in FIG.
Moreover, the assembly type container was the same as in Example 1 (for 500 l, only the dimensions were different), and a gusset bag was set in the assembly type container as in Example 1.
Edible oil was filled in the gusset bag stored in the assembly type container as follows.
As for the filling machine, the filling nozzle was a horizontal type as in Example 1, and the aseptic filling machine without the steam sterilization device in FIG. 17, that is, the filling nozzle as shown in FIG.
First, as shown in FIG. 18 (a), the contents are filled by inserting the tip of the filling nozzle 50 of the filling machine and the filling port 3 of the large gusset bag 1 (with the spout 14 fitted to the inner plug 15). Close contact.
[0045]
Next, as shown in FIG. 18B, the inner plug 15 is pulled out by using the inner plug attaching / detaching device 53 to remove the inner plug 15 from the spout 14, and at the same time, the piston 51 of the filling nozzle 50 is pulled out. The edible oil was filled, and the total amount 500 l was filled.
After completion of filling, as shown in FIG. 18 (c), the piston 51 is pressed against the tip of the filling nozzle 50 to stop the outflow of contents, and then the inner plug 15 is pushed into the spout 14 using the inner plug attaching / detaching device 53. And the gusset bag 1 was sealed.
Next, the filling port 3 was removed from the filling nozzle 50, the filling port portion was washed, and an outer cap was placed thereon.
The large gusset bag filled with the contents was transported to the user in the same manner as in Example 1, and the contents were taken out by the user using the take-out device.
[0046]
【The invention's effect】
According to the present invention, a large-capacity liquid of 300 to 1200 l is filled in a flexible bag, stored in an assembly-type container, and transported. Because it is significantly lighter, transportation costs can be reduced.
Further, since the volume ratio per weight is reduced, the transportation cost per truck can be reduced, and the storage cost can also be reduced.
Furthermore, since the empty container is folded to a volume of about 1/3, the transportation cost for reuse can be reduced.
[0047]
And since the large gusset bag of the present invention is folded into a quadrangular shape (rectangular shape or square shape) according to the shape of the loading surface of the container, and the corrugated cardboard of the same shape is attached to the rectangular portion, When the gusset bag is set in the container, it can be easily aligned.
In this case, the heat seal part at the bottom was bent and the bent part was adhered with an adhesive tape or the like to protect the heat seal part from being directly subjected to pressure from the contents. Thus, even when a large volume of liquid such as 300 to 1200 l is put into a large gusset bag by folding the bottom heat seal portion into a folded shape, the bottom heat seal portion Such pressure is relieved and liquid leakage can be prevented.
[0048]
Moreover, the filling port of the gusset bag is set at the filling nozzle of the filling machine by providing the filling port at the upper part of the front surface (or rear surface) of the gusset bag and providing the outlet at the lower part of the folding part of the side film of the gusset bag. When this happens, the gusset bag outlet is fixed to the rear side of the container (the opposite side of the man side).
Therefore, while pulling the gusset bag forward, the operator can set it in the container with less looseness of the bag, and the bottom of the container is inclined and the outlet part is lowered, so when filling the contents, The contents are filled from the back side of the container, and the back side of the container can be filled without a gap with the gusset bag.
In addition, the gap between the container and the gusset bag can be adjusted by touching the gusset bag with the hand while filling the contents, so the gap between the container and the gusset bag is created. It becomes possible to fill without.
[0049]
Also, since triangular prisms are attached to the four corners of the container, when a large gusset bag is stored and transported in the container, the gusset bag is not rubbed at the corner and pinholes are not generated.
In addition, the bottom of the container is inclined so that the center has a groove shape, and the groove is inclined so that the gate for taking out the contents is lower. When the contents are taken out from the large gusset bag, the liquid contents can easily flow to the outlet, and the remaining amount of the contents can be greatly reduced.
In addition, since Teflon tape is applied to the corners on both sides of the two end plates of the container, the sides of the side plates of the container and the corners of the end plates of the container are more slippery, and when the container is assembled or folded, Scratches generated on the side surfaces can be prevented. At the same time, the slipperiness between the side surface and the corner of the end plate is improved, so that the side plate and the end plate can be easily assembled and folded.
[Brief description of the drawings]
FIG. 1 is a schematic view showing the shape of a large gusset bag of the present invention.
FIG. 2 is a perspective view showing an outline of a large BIC of the present invention.
FIG. 3 is an explanatory view showing a set state of a bag when an opening is provided at a folded portion of a side film of a large gusset bag to fill the contents.
FIG. 4 is an explanatory view showing a set state of a bag when an outlet is provided in a rear film of a large gusset bag and filled with contents.
FIG. 5 is an explanatory view when manufacturing a large gusset bag, and is a view when the films on both sides are folded and overlapped on the front and back films.
FIG. 6 is an explanatory diagram when the filling port is attached to the front and rear films of the gusset bag.
FIG. 7 is an explanatory view when the outlet is attached to the side film of the gusset bag.
FIG. 8 is an explanatory diagram when a bottom seal portion is formed on a large gusset bag and the bottom portion is folded into a quadrangular shape.
FIG. 9 is a view showing the structure of a lid, an assembly part, a hopper part, and an assembly part end plate of the assembly type container.
FIG. 10 is an explanatory diagram when the outlet is fixed to the gate portion of the assembly-type container.
FIG. 11 is a view showing the shape of the bottom of the assembly-type container.
FIG. 12 is an explanatory diagram when assembling the assembly-type container.
FIG. 13 is an explanatory diagram when contents are taken out from a large BIC using a take-out device.
14 is a view showing the size of a large gusset bag (capacity 1000 l) produced in Example 1. FIG.
15 is a view showing the size of a large gusset bag (capacity 500 l) produced in Example 3. FIG.
FIG. 16 is a diagram showing the shape and size of the filling port and the outlet prepared according to Example 1;
17 is an explanatory view when liquid is aseptically filled into the large BIC of the present invention according to Example 1. FIG.
18 is an explanatory diagram when a large BIC of the present invention is filled with liquid according to Embodiment 3. FIG.
[Explanation of symbols]
1 Large gusset bag
2 Assembled containers
3 Filling port
3a Hole for filling port
4 Exit
4a Hole for outlet
5 contents
6 Side seal part
7 Bottom seal
7a Bottom heat seal part
7b Non-heat seal part
7c Bottom bent part
8 Filling machine
11 Front film
11a Rear film
12 Side film (right)
12a Side film (left)
13 Folding part
14 Spout for filling port
14a Spout for outlet
15 Inner cap for filling port
15a Inner tap for outlet
16 Flange
17 O-ring
18 Screw holes
19 Bottom (of gusseted bag)
21 palettes
22 Hopper section
23 Single door
24 gate
25 Assembly Department
26 Lid
27 Side plate
28 wife
28a Tsumami Corner
28b Teflon tape
29 Hook
30 Hole for fixing the outlet
31 Fixed plate
32 Moving board
33 slope
40 Take-out device
41 Connection pad
42 Clamp
43 Opening and closing shaft
44 Extraction pipe
45 Discharge valve body
46 Handle
47 Handle
50 Filling nozzle
51 piston
52 Steam
53 Inner plug attaching / detaching device

Claims (5)

In a bag-in-container comprising a large bag for filling liquid and a container for storing it, the large bag is a gusset bag having folds on both sides, and the bottom of the gusset bag is heat sealed After that, a rectangular shape, a substantially corrugated support board made of corrugated cardboard is affixed to the rectangular part, and a filling port for filling liquid is provided on the front or rear of the gusset bag, An outlet for taking out the liquid is provided at the lower part of the folding part of the gusset bag , and the container is a four-sided folding type container, and the bottom part has an inclination angle. a gate for the contents taken out to the side plate of the position of the lowest point is provided, large bags in which the four corners of the container, characterized in that it is stuck triangular prism Ntena. The large-sized bag-in according to claim 1 , wherein the seal part at the bottom of the gusset bag is formed by heat-sealing the bottom part, bending the upper part of the heat-seal part, and bonding the bent part with adhesive tape. container. The filling port is composed of a spout and an inner plug, and the spout and the inner plug have a shape that can be sealed by fitting, and the spout and the inner plug are positioned opposite to each other before and after the packaging material constituting the large bag The large bag-in-container according to claim 1 or 2, wherein the large-sized bag-in container is heat-sealed so that they can be fitted together . The outlet comprises a spout and an inner plug, and the spout and the inner plug have a shape that can be sealed by fitting, and the spout is heat-sealed at the lower part of the folded portion of the gusset bag. The large bag-in-container according to any one of claims 1 to 3, wherein the opening is sealed by fitting an internal stopper from the inside of the bag . The gusset bag is a laminate made of stretched nylon, polyethylene, aluminum foil, or a laminate of stretched nylon and polyethylene, and the innermost layer is a double bag or a triple bag made of a polyethylene film, and has an internal capacity. The large bag-in-container according to any one of claims 1 to 4 , wherein is 300 to 1200 l.

Images