CN112424070A

CN112424070A - Method for producing a container and device for producing a container

Info

Publication number: CN112424070A
Application number: CN201980048146.4A
Authority: CN
Inventors: 吴世一
Original assignee: Inbev Co ltd
Current assignee: Inbev Co ltd
Priority date: 2018-05-17
Filing date: 2019-02-15
Publication date: 2021-02-26
Anticipated expiration: 2039-02-15
Also published as: KR102164809B1; CN112424070B; EP3798139A1; WO2019221367A1; EP3798139A4; KR20190131763A; US20210331820A1

Abstract

The present invention relates to a method for manufacturing a container for containing a liquid and an apparatus for manufacturing a container. The present invention provides a method for manufacturing a container, the container comprising: an outer container, and a bag of elastic material joined to the outer container and internally formed with a filling space; wherein, include: a container preparation step of preparing a container, the container comprising: an outer container, and a bag coupled to the outer container such that a filling space is located in a receiving space of the outer container, and a bag expanding step of supplying air to the filling space of the bag such that the filling space of the bag is expanded within the receiving space.

Description

Method for producing a container and device for producing a container

Technical Field

The present invention relates to a method for manufacturing a container for containing a liquid and an apparatus for manufacturing the container, and more particularly, to a method for manufacturing a container and an apparatus for manufacturing the container that store and discharge a liquid in such a manner that all the contents can be used.

Background

Fig. 1a shows a prior art storage container with viscous liquid contents.

Liquids such as shampoos, lotions, and the like are characterized by relatively high viscosity. When the content 20 having such a large viscosity is loaded into the container 10, the content has a property of adhering to the inner wall of the container due to the viscosity of the content. However, such products are generally packed and sold in a hard container 10 having a small opening as shown in fig. 1A for reasons of beauty, convenience of use, and the like. That is, most of them are produced in a rigid container of the form shown in fig. 1a for the reason of the consumer's feeling or the convenience of use, and in the method of discharging the contents, a method of installing a pump in the discharging part 30 to suck the contents into the discharge pipe 31 by a pump action caused by air pressure and discharge the contents is generally used for the convenience of use. However, in the case where the content 20 in the storage space of the container 10 is sufficient and the content can be discharged through the discharge tube 31, there is no problem, but in the case where the content in the container 10 is not large, the remaining content sticks to the inner wall of the container and is not easily dropped, causing a problem that it is difficult to discharge the remaining content, which becomes a main obstacle to complete use of the contents of shampoo, lotion, and the like.

Fig. 1b shows a state in a conventional liquid content storage container with viscous contents in the container when the content is not much left.

As shown in fig. 1b, when the amount of the remaining content 21 is small, the remaining content 21 is not easily dropped from the container 10 due to the adhesion of the remaining content 21 to the inner wall of the container 10, and there is a problem in that the remaining content 21 in the container cannot be efficiently discharged because the suction area of the discharge pipe 31 attached to the pump is limited. Such a problem causes a large amount of contents attached to the inner wall of the container to be not properly discharged to be difficult to use, thereby causing the following serious problems.

First, the contents remain in the hard container in an untouchable portion and the contents cannot be used completely and are discarded, thereby promoting over-consumption.

Second, when the container is discarded in a state that contents such as emulsion, shampoo, lotion, etc. remain, environmental pollution may be caused.

Third, in order to use the remaining contents in the container that are not discharged by the discharger, when the discharge port is opened by separating the discharger such as a pump from the container, the contents may be contaminated by inflow of foreign substances or the like.

Fourth, when the container is separated from the ejector and thrown out in an attempt to discharge the remaining contents in the container, there is a problem in that it is difficult to accurately discharge the amount to be used.

On the other hand, in order to solve the above problems, there has been introduced a vacuum container which is reduced in volume by raising a bottom plate of the container according to the use of contents, and in the case of such a container, the bottom plate of the container is raised by the pressure reduction of the contents, and thus, it is not suitable for a large-capacity container, and most importantly, only a cylindrical container can be realized, and thus the degree of freedom of the container design is greatly restricted, and there is a problem that the manufacturing cost of the container is increased.

Therefore, there is a need to introduce a container and a method that can use a rigid container and be produced at low cost while maintaining beauty and convenience, and can efficiently inject and discharge contents with viscosity.

Disclosure of Invention

Problems to be solved by the invention

The inventors of the present invention have recognized the following problems: when a liquid, particularly a highly viscous liquid, is contained in a hard container having a narrow opening portion, the liquid content adheres to the inner wall of the container due to the viscosity and surface tension of the liquid content, and when the remaining content is not much, it is difficult to discharge using a pump or the like, and thus it is not practical. Nevertheless, the sound of the related industry is well recognized: only a hard container can be used because the hard container makes the product aesthetically high-grade and it is necessary to attach a pump or the like to the discharge portion for convenient use.

Accordingly, the inventors of the present invention propose a container and a device as follows: the flexible bag is placed in the hard container and the liquid contents are stored in the flexible bag, so that the contents stored inside can be conveniently and completely used even in the case of using the hard container through a novel and innovative method.

In this connection, as described above, in order to easily discharge the contents even when the remaining contents are not large by providing the elastic bag in the rigid container, it is necessary to perform a process of filling the elastic bag with the contents in the production step of the product.

Fig. 2a and 2b illustrate a process of filling a liquid type into a hard container in a conventional manufacturing process of shampoo, emulsion, etc.

As shown in fig. 2a, in the case of products sold by filling liquid such as shampoo or emulsion into hard containers, the hard containers are arranged in a row on a conveyor 50 and conveyed to a content filling apparatus 51. The content filling apparatus may have one or more nozzles 60 according to design.

As shown in fig. 2b, when the hard containers are positioned below the nozzles according to the number of nozzles, the nozzles are lowered above the respective hard container openings and filled with the contents 61 through the nozzles. In this case, the time for which the nozzle moves to fill the contents and the filling amount of the nozzle per unit time directly relate to the production efficiency of the product, and therefore, the nozzle is generally vertically moved by a minimum distance according to a design method so as to accurately contain the contents in the hard container, or the contents are sprayed on the spot without being moved, whereby the filling is performed in a state where the nozzle and the opening portion of the hard container are mostly spaced apart from each other in consideration of the production efficiency and the like.

On the other hand, the inventors of the present invention have also recognized the following problems: when the contents are filled in the elastic bag by this method, the injection pressure of the contents injected through the opening portion of the hard container is not sufficient to overcome the elasticity of the elastic bag due to the elasticity of the elastic bag, and when the contents are not injected in a state where the contents injection nozzle is in close contact with the hard container, the elastic bag is expanded, and the content storage amount cannot be as large as the volume of the hard container.

Therefore, in view of economy, it is required to develop a novel container device which can fill the elastic bag with the content even when the existing content filling apparatus is used, and a method of manufacturing the same.

Accordingly, an object of the present invention is to provide a device, a container, and a method of manufacturing the same, which can use all the contents by containing a viscous liquid in the container device capable of storing and discharging a liquid of the present invention.

Another object of the present invention is to provide a device, a container, and a method for manufacturing the same, which can effectively use the remaining contents by including an elastic bag that can be inserted into a rigid container, and which can be deformed into various shapes that can be accommodated in the rigid container when the elastic bag expands due to the elasticity of the elastic bag, by utilizing the pressure of pushing out the contents toward an opening portion by the elastic bag by the surface area reducing effect according to the contraction of the elastic bag and the elasticity (restoring force) of the elastic bag and the discharge pressure of a discharge device, thereby enabling the container to be designed without restricting the shape of the rigid container.

Another object of the present invention is to provide a device, a container, and a method for manufacturing the same, in which when contents are filled in a rigid container having an elastic bag, as in a conventional method, when the contents are sprayed or flowed down over an opening of the rigid container using a filling nozzle, in a state where the elastic bag is not previously expanded, as much contents as the volume of the rigid container cannot be filled due to the elasticity of the elastic bag, and the device, the container, and the method for manufacturing the same of the present invention can fill the contents using a conventional content filling method while having the elastic bag.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood from the following description by those skilled in the art.

Means for solving the problems

A method for manufacturing a container of an aspect of an embodiment of the present invention, the container comprising: an outer container, and a bag of elastic material joined to the outer container and internally formed with a filling space; wherein, include: a container preparation step of preparing a container, the container comprising: an outer container, and a bag coupled to the outer container such that a filling space is located in a receiving space of the outer container, and a bag expanding step of supplying air to the filling space of the bag such that the filling space of the bag is expanded within the receiving space.

In addition, the pouch expanding step may include: a bag stretching step of elastically deforming the bag in a direction opposite to an opening portion side of the outer container in a state where the bag is inserted into the accommodation space of the outer container, and a bag pressurizing step of injecting air into the bag elastically deformed in the bag stretching step to expand the filling space of the bag.

In addition, in the bag stretching step, an air pressurizing/depressurizing unit of an apparatus for manufacturing a container may be inserted into the filling space of the bag, and the air pressurizing/depressurizing unit may be moved from an opening portion side of the container to an end portion side of the container to elastically deform the bag.

In addition, the bag expanding step further includes: a bag depressurizing step of depressurizing the filling space of the bag, which is elastically deformed, to a first reference depressurization pressure, which is less than or equal to atmospheric pressure, by the air pressurizing/depressurizing unit, and an external container depressurizing step of depressurizing the accommodating space of the container to atmospheric pressure or less through a through-hole formed in the container; when the pressure of the accommodating space of the outer container is reduced to be the same as or below a second reference reduced pressure, the filling space of the bag may be provided with a pressurization pressure equal to or greater than atmospheric pressure in the bag pressurization step to expand the filling space of the bag.

In addition, in the outer container depressurizing step, the accommodating space of the outer container may communicate with the outside of the accommodating space only through the through hole.

In addition, in the bag pressurizing step, a portion of the filling space of the bag that is remote from the opening portion side of the outer container and a portion that is close to the opening portion side may be expanded simultaneously.

Further, in the bag expanding step, when air is supplied to the filling space of the bag so that the volume of the filling space within the accommodating space increases, the air in the accommodating space is discharged to the outside of the outer container through a through hole formed at the outer container, the method for manufacturing a container further includes a bag expanded state maintaining step of providing a blocking member at the through hole of the outer container to maintain an expanded state of the filling space in a state where the filling space of the bag is expanded, in the bag expanded state maintaining step, making an internal pressure of the filling space of the bag smaller than a restoring force of the bag, a force acting on an inner surface of the bag by the pressure of the filling space of the bag and a force acting on an outer surface of the bag by the pressure of the accommodating space between the bag and the outer container, may be balanced against the restoring force of the bag.

In addition, a liquid filling step of filling the filling space of the bag expanded with a content in a liquid state, the content filled into the filling space of the bag, which can be filled into the filling space under atmospheric pressure without providing additional pressure to the content, is further included.

In addition, the container preparation step may include: a first outer container gripping step of gripping an end portion on a side opposite to an opening portion of the outer container; and a second outer container gripping step of gripping an opening portion side of the outer container.

In addition, the pouch expanding step may include: a bag stretching step of elastically deforming the bag in a direction opposite to an opening portion side of the outer container in a state where the bag is inserted into the accommodation space of the outer container, and a bag pressurizing step of injecting a liquid content into the bag elastically deformed in the bag stretching step to expand the filling space of the bag.

An apparatus for manufacturing a container of another aspect of the present invention, the container comprising: an outer container, and a bag of elastic material joined to the outer container and internally formed with a filling space; wherein the apparatus for manufacturing a container comprises: an air pressurizing/depressurizing unit inserted into the filling space of the bag, having a plurality of air holes formed on an outer surface thereof to introduce or discharge air into or from the filling space, and being slidable in a direction from an opening side of the bag to an end side of the bag.

In addition, the method comprises the following steps: a unit body capable of sliding, and a head formed at one side of the unit body and having the plurality of air holes formed therein; the end of the head may be formed in a circular shape.

In addition, the air hole may be formed at a side surface of the head portion or the end portion side of the head portion.

In addition, the apparatus for manufacturing a container may further include a first grasping unit that pressurizes the other side of the outer container to grasp the outer container, and a clamping portion of the pouch is inserted into one side of the outer container and is formed with an opening portion communicating with the receiving space of the outer container.

In addition, a stand unit is further included, the stand unit being provided with the clamping portion of the bag engaged with the opening portion of the outer container and provided with the air pressurizing/depressurizing unit, and the stand unit may move downward by a preset distance when the first grasping unit pressurizes the other side of the outer container.

In addition, a second gripping unit may be further included to grip one side of the outer container in a direction orthogonal to a direction in which the first gripping unit grips the outer container.

In addition, a through hole communicating with the accommodating space is formed at the other side of the outer container, and the first grip unit may include: a first grip unit body, a suction flow path formed in the first grip unit body and communicating with the through hole, and an elastic grip portion contacting the other side of the outer container in a state where the through hole of the outer container is in contact with the suction flow path.

A container of still another aspect of the present invention is manufactured by a manufacturing method of a container including an outer container and a bag of an elastic material joined to the outer container and having a filling space formed therein, the manufacturing method including: a container preparation step of preparing a container, the container comprising: and a bag expanding step of supplying air into the filling space of the bag so as to expand the filling space of the bag within the accommodating space, the container further including a coupling unit which is inserted to an opening portion side of the bag and has a through space formed therein for communicating the filling space of the bag with an outside in a state where the outer container and the bag are joined, the coupling unit pressurizing a part of the packaging bag to an inner wall side of the opening portion of the outer container.

Effects of the invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a container device that can contain a viscous liquid and can use all the contents, a container, and a method for manufacturing the container device.

According to the device, the container and the manufacturing method thereof of the embodiment of the present invention, by providing the elastic bag insertable into the hard container, the remaining contents are effectively used by utilizing the pressure of pushing the contents out of the elastic bag toward the opening portion by the surface area reducing effect according to the contraction of the elastic bag and the elasticity (restoring force) of the elastic bag and the discharge pressure of the discharge device, and the elastic bag is deformed into various shapes that the hard container can accommodate when expanded by the elasticity of the elastic bag, so that the container can be designed without restricting the shape of the hard container.

When the contents are filled in the hard container provided with the elastic bag, as in the conventional method, when the filling nozzle is used to spray the contents over the opening portion of the hard container or to flow the contents downward, the contents cannot be injected as much as the volume of the hard container due to the elasticity of the elastic bag in a state where the elastic bag is not previously expanded, and the device, the container, and the manufacturing method thereof according to the embodiments of the present invention have an effect of being able to inject the contents using the conventional contents filling method while providing the elastic bag.

Drawings

Fig. 1a shows a prior art storage container with viscous liquid contents.

Fig. 2a shows a process of filling a liquid type into a hard container in a conventional manufacturing process of shampoo, emulsion, etc.

Fig. 2b shows a process of filling a liquid type into a hard container in a conventional manufacturing process of shampoo, emulsion, etc.

Fig. 3 is a diagram showing an apparatus for manufacturing a container of an embodiment of the present invention.

Fig. 4 to 7 are views illustrating a method of filling a liquid into a container using the apparatus for manufacturing a container of fig. 3.

Fig. 8 is a view illustrating a container filled by the method for manufacturing a container of fig. 4 to 7.

Fig. 9 is a sequence diagram illustrating the method for manufacturing a container of fig. 4 to 7.

Fig. 10 is a sequence diagram illustrating a bag expanding step of the method for manufacturing a container of fig. 9.

Detailed Description

Advantages and features of the present invention and methods of accomplishing the same will become apparent with reference to the following detailed description of the embodiments and the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms only to complete the scope of the present invention and inform the scope of the present invention to those skilled in the art, and the present invention is defined only by the scope of the claims.

Although the terms first, second, etc. are used to describe various constituent elements, these constituent elements are not limited by these terms. These terms are only used to distinguish one constituent element from another constituent element. Therefore, the first component mentioned below may be the second component within the technical idea of the present invention.

Throughout the specification, the same reference numerals refer to the same constituent elements.

The various features of the various embodiments of the present invention may be partially or fully combined or combined with each other and various linkages and drives may be technically made as can be fully appreciated by those skilled in the art, and the various embodiments may be implemented independently of each other and may be simultaneously implemented in a relational relationship.

On the other hand, potential effects that can be expected by technical features of the present invention, which are not specifically mentioned in the description of the present invention, are regarded as effects described in the present description, and the present embodiment is provided for more complete description of the present invention to those skilled in the art, and the contents shown in the drawings may be exaggeratedly expressed compared to the implementation of the actual invention, and a detailed description of the judgment structure will be omitted or simplified when it may unnecessarily obscure the gist of the present invention.

In the present specification, the liquid refers to a wide range of liquid states that are not solid or gaseous states. That is, it refers to all states in which the distance between molecules is short and kinetic energy is low, but not as strongly attached as solid molecules, and is used to refer to non-viscous liquids including water and strongly viscous liquids such as gel.

In the present specification, a bag refers to a soft bag that may or may not have a fixed appearance, and is collectively referred to as the following bag: a bag having a restoring force to restore its original shape when stretched or expanded due to elasticity while the shape is changed by an external force; a simple soft bag which does not have a fixed appearance and is deformed by an external force.

In the present specification, the container refers to all kinds of containers made of hard materials having a certain shape, such as plastic, glass, metal, etc., and may be used in combination with the "hard container".

In the present specification, the coupling unit refers to a structure that joins the bag and the container, and is joined to the opening portion of the bag and to the container joining portion (the pouring port of the container) of the container so that the bag can be fixed in the container. The coupling unit may further include a fixing portion or an air blocking portion so that a space between the container and the pouch may be completely blocked from the outside. When manufacturing the pouch, the coupling unit may be integrally realized by insert molding or the like.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention. The present invention may be embodied in many different forms and is not limited to the embodiments set forth herein. In the drawings, portions irrelevant to the description are omitted in order to clearly explain the present invention, and the same reference numerals are assigned to the same or similar constituent elements throughout the specification. In addition, the size and thickness of each structure shown in the drawings are arbitrarily illustrated for convenience of description, and the present invention is not necessarily limited to the drawings.

Fig. 3 is a diagram showing an apparatus for manufacturing a container of an embodiment of the present invention. Fig. 4 to 7 are views illustrating a method of filling a liquid into a container using the apparatus for manufacturing a container of fig. 3. Fig. 8 is a view showing a container filled by the method for manufacturing a container of fig. 4 to 7.

Referring to fig. 3 and 4, an apparatus 1 for manufacturing a container according to an embodiment of the present invention is an apparatus for manufacturing a container 2, the container 2 including a bag 220 of an elastic material capable of suppressing the remaining of the filled contents during use.

The container 2 manufactured by the apparatus for manufacturing a container 1 of the present embodiment may exemplarily include: an outer container 210 formed of a hard material such as glass or plastic; a bag 220 of an elastic material joined to the outer container 210 and internally formed with a filling space 226; and a coupling unit 230 securely joining the bag 220 to the outer container 210 and for securing a flow path of the filling space 226 of the bag 220.

When using an existing filling apparatus that simply flows liquid contents, such as cosmetics or lotions, into the container 1 without applying pressure to the liquid contents when filling the liquid contents, there is a problem that the bag 220 cannot be sufficiently expanded within the accommodation space 216 of the outer container 210 by merely coupling the bag 220 to the outer container 210 of the container 2.

That is, when the conventional filling apparatus is used, the weight of the liquid content contained in the filling space 226 of the bag 220 in the contracted state is smaller than the elastic force of the bag 220, and the bag 220 maintains the contracted state, so that there is a problem that a required amount of the liquid content cannot be filled in the bag 220.

Accordingly, the apparatus 1 for manufacturing a container according to the embodiment of the present invention expands the bag 220 to a preset size in a state where the outer container 210 and the bag 220 are coupled to ensure a sufficient filling space 226 and maintains the bag 220 in the expanded state, thereby being capable of solving problems occurring when using the conventional filling device.

The apparatus 1 for manufacturing containers according to an embodiment of the present invention may include a table T, a stage unit 110, an air pressurizing/depressurizing unit 120, a first grip unit 130, a second grip unit 140, and a third grip unit 150.

In more detail, the table T is supported on the floor (not shown), and provides a space in which the stage unit 110, the air pressurizing/depressurizing unit 120, the first grip unit 130, the second grip unit 140, and the third grip unit 150 can be installed.

The stage unit 110 is disposed on the upper surface of the table T, can move a predetermined distance in the up-down direction, and includes: a stage unit main body 111 slidably connected to the table T in the up-down direction; and a container mounting portion 112 provided on an upper surface of the stage unit main body 111 and into which a part of the container 1 is inserted.

For example, the container mount 112 may be formed in a circular shape, and a coupling unit 230 of the container 200, a snap portion 224 of the pouch 220, and a neck portion 214 of the outer container 210 may be mounted on a mounting hole (not shown) formed at the center of the container mount 112. In a state where the container 2 is mounted on the container mounting portion 112, the opening portion 215 formed in the neck portion 214 of the outer container 210 is closed by the bag 220, and the coupling unit 230 pressurizes a part of the bag 220 toward the inner surface side of the opening portion 215, thereby enabling the opening portion 215 of the outer container 210 to be firmly sealed.

And an air pressurizing/depressurizing unit 120 provided in the mounting hole of the container mounting portion 112 and slidable in an up-down direction with respect to the container mounting portion 112. The air pressurizing/depressurizing unit 120 is inserted into the filling space 226 of the pouch 220, and the outer surface is formed with a plurality of air holes 124 to introduce air into the inside of the filling space or to discharge the air from the inside of the filling space.

In more detail, the air pressurizing/depressurizing unit 120 includes: a unit body 121 slidable with respect to the stage unit 110; and a head 122 formed at one side of the unit body 121 and having a plurality of air holes 124 formed therein. The end 123 of the head 122 is formed in a circular shape, and in the process that the head 122 presses the end 222 of the pouch 220 to expand and deform the pouch 220, the damage of the pouch 220 is suppressed, and the pouch 220 is uniformly expanded.

In the present embodiment, a configuration in which a plurality of air holes 124 are formed in the head portion 122 is described, but one air hole 124 may be formed.

The air hole 124 of the head 122 may be provided in plural, and the air hole 124 may be exemplarily provided in a linear shape at a side surface of the head 122. However, this is merely an example, and the air holes 124 may be arranged in a spiral shape on the side surface of the head 122, or may be arranged in an irregular pattern, and also may be such that the air holes 124 are arranged on the end 123 side of the head 122 or the air holes 124 are arranged on both the end of the head 122 and the side surface.

The air hole 124 of the air pressurizing/depressurizing unit 120 is connected to a pump unit (not shown) of the apparatus for manufacturing containers 1, by which air is discharged through the air hole 124 or sucked from the air hole 124.

In addition, the unit body 121 of the air pressurizing/depressurizing unit 12 can move in the up-down direction by receiving a driving force from a driving unit (not shown). The driving unit may be a Rack and Pinion (Rack and Pinion) or a Linear Motor (Linear Motor) that converts a rotational force into a Linear direction, but the driving unit is not limited to the example.

On the other hand, the first and

third grip units

130 and 150 are movably disposed in the up-down direction on a vertical frame 180 formed to extend in a direction perpendicular to the table T, and the pair of second grip units 140 are movably disposed in the horizontal direction on the table T, the horizontal direction being a direction orthogonal to the extending direction of the vertical frame 180.

In a state where the snap-in portion 224 and the coupling unit 230 of the pouch 220 are disposed at one side of the outer container 210, i.e., the neck portion 214, and the opening portion 215 of the outer container 210 is disposed toward the stage unit 110, the first grip unit 130 comes into contact with the other side 212 of the outer container 210, and pressurizes the container 210 toward the stage unit 110 side, thereby gripping the outer container 210.

In the process of descending and pressurizing/gripping the outer container 210 to the outer container 210 side in a state where the first grip unit 130 is lifted up on the vertical frame 180, when the first grip unit 130 contacts the other side 212 of the outer container 210 and provides a pressurizing force to the outer container 210, the stage unit 110 to which the one side 213 of the outer container 210 is mounted descends by a preset distance, so that it is possible to prevent the container 2 from being damaged due to the sudden application of the pressurizing force.

On the other hand, a through hole 217 communicating with the accommodating space 216 of the outer container 210 is formed on the other side of the outer container 210. And, the first grip unit 130 includes: a first grip unit body 131 slidably connected to the vertical frame 180 in the up-down direction; a suction flow path 133 formed in the first grip unit body 131 and communicating with the through hole 217 of the outer container 210; and an elastic grip 134 which is in contact with the other side 212 of the outer container 210 in a state where the through hole 217 of the outer container 210 is in contact with the inhalation flow path 133.

At this time, the suction flow path 133 is connected to a pumping unit (not shown) of the apparatus for manufacturing a container 1, and Negative Pressure (Negative Pressure) is supplied from the pumping unit in a state where the penetration hole 217 is communicated with the suction flow path 133, so that air of the accommodating space 216 is discharged to the outside through the penetration hole 217.

Also, the elastic grip 134 formed of an elastic material such as rubber or silicone is in contact with the other side 212 of the outer container 210, and thus the outer container 210 may be prevented from being broken due to instantaneous contact occurring between the outer container 210 and the first grip unit 130.

A second grip unit 140 provided as a pair spaced apart centering on the stage unit 110, a grip unit body 141; a grip 142 disposed at one end of the grip unit main body 141 and surrounding the neck 214 of the outer container 210; and the other end connected to the grip unit body 141, the grip unit body 141 can be moved to a horizontal direction, i.e., a direction to approach or separate from the stage unit 110.

The pair of second grip units 140 may grip the neck 214 of the outer container 210 in a state where the container 2 is set on the stand unit 110 to suppress the container 2 from shaking in the left-right direction. On the other hand, according to the embodiment of the present invention, the pair of second grip units 140 may be designed such that only one unit is driven while the other unit is fixed.

And a third grip unit 150 disposed on the vertical frame 180 and between the first grip unit 130 and the table T. The third grip unit 150 surrounds the outer circumference of the outer container 210, and can suppress the container 2 from shaking in a state of being set on the stand unit 110.

In the present embodiment, the opening portion 215 of the outer container 210 and the opening portion 225 of the pouch 220 are described to be directed downward, but the embodiment of the present invention also includes a configuration in which the opening portion 215 of the outer container 210 and the opening portion 225 of the pouch 220 are directed upward. In this case, the stage unit 110 includes an inhalation flow path that meets the penetration hole 217 of the outer vessel 210, and the air pressurizing/depressurizing unit 120 may be provided at the first grip unit 130.

On the other hand, in the present embodiment, the outer container 210, the bag 220, the coupling unit 230 are manually mounted to the apparatus for manufacturing containers 1, but when the outer container 210, the bag 220, the coupling unit 230 are automatically mounted to the apparatus for manufacturing containers 1 by a conveyor belt, a robot, or the like, the second and/or third

gripping units

140 and 150 may be omitted.

Hereinafter, a method of manufacturing the container 2 of the embodiment of the present invention will be described in detail.

First, a container 2 is mounted to a stage unit 110 of the manufacturing apparatus 1, the container 2 including: an outer container 210; a bag 220 coupled to the outer container 210 such that the filling space 226 is located in the receiving space 216 of the outer container 210; and a coupling unit 230 inserted into the opening 225 side of the bag 220 in a state where the outer container 210 and the bag 220 are joined, and having a filling space 226 for communicating the bag 220 with an external penetrating space 235 formed therein.

One side 213 of the outer container 210 is provided with a neck portion 214 formed with an outer container side opening portion 215 communicating with the accommodation space 216, and illustratively, the neck portion 214 has a diameter smaller than that of the outer container main body 211.

The bag 220 includes: a bag main body 221 formed of an elastic material, having a filling space 226 formed therein, and a bag-side opening 225 formed on one side 223; the engaging portion 224 is formed on one side of the bag body 221 and has a plate shape larger than the outer diameter of the bag body 221.

A coupling unit 230 including: a coupling unit main body 231 inserted into the opening 225 side of the bag 220; and a coupling unit side catching part 232 formed at one side of the coupling unit main body 231 and having an outer diameter greater than that of the coupling unit main body 231. Also, a through space 235 communicating with the filling space 226 of the pouch 220 is formed at the center of the coupling unit main body 231.

In a state where the bag 220 is joined to the outer container 210, the coupling unit 230 is disposed on the opening portion 225 side of the bag 220, and pressurizes a portion of the bag 220 toward the outer container side opening portion 215 of the outer container 210, so that the outer container 210 and the bag 220 are firmly joined, and outflow and inflow of air through a space between the outer container side opening portion 215 of the outer container 210 and the bag 220 can be suppressed. In addition, the coupling unit 230 is formed of a material harder than the pouch 230, illustratively, a plastic material such as PP, PE, ABS, nylon, or a metal material such as stainless steel. Therefore, when the filling of the liquid content into the container 2 is completed and the pumping means (not shown) for discharging the liquid content to the outside is provided on the opening 225 side of the bag 220, the coupling means 230, which is not deformed by an external force, firmly maintains the shape of the opening 225 side of the bag 220, and thus the rolling up of the opening 225 side of the bag 220 due to the insertion of the pumping means can be suppressed.

In the present embodiment, the coupling unit 230 is explained as a structure joined to the opening portion 225 side of the pouch 220, but the embodiment of the present invention also includes a structure in which a separate coupling unit 230 is not provided, and a support member formed of a material harder than that of the pouch 220 is provided in the snap portion 224 of the pouch 220.

In the process of mounting the container 2 to the stage unit 110 of the manufacturing apparatus 1, first, the air pressurizing/depressurizing unit 120 is passed through the through space 235 of the coupling unit 230 in a state where the outer container 210 of the container 2, the bag 220, and the coupling unit 230 are joined to each other, and the container 2 is mounted to the stage unit 110 so that the head 122 of the air pressurizing/depressurizing unit 120 is located in the filling space 226 of the bag 220.

On the other hand, the structure in which the container 2 includes the coupling unit 230 joined to the bag 220 is explained, but a separate coupling unit 230 may not be provided, and a part of the bag 220 (the snap portion 224) may be formed of a hard material, or a structure in which a hard support member is provided in the snap portion 22 of the bag 220 may be also adopted.

In a state where the container 2 is mounted on the stage unit 110, the second grip unit 140 surrounds the outer circumferential surface of the outer container 210, so that the outer container 210 can be gripped.

Next, referring to fig. 5, in a state where the container 2 is mounted to the stage unit 110, the first grip unit 130 moves to the stage unit 110 side, contacting the other side 212 of the outer container 210. At this time, the through hole 217 formed at the other side 212 of the outer container 210 communicates with the air flow path 133 of the first grip unit 130.

Next, the second grip unit 140 is moved in a horizontal direction, thereby gripping the neck 214 of the outer container 210.

Next, referring to fig. 6, in a state where the container 2 is gripped by the

grip units

130, 140, 150, the air pressurizing/depressurizing unit 120 slides in a direction of the first grip unit 130, that is, in a direction opposite to the opening portion 215 side of the outer container 210, thereby elastically deforming the bag 220.

Next, in a state where the filling space 226 of the bag 220 is upwardly expanded to a predetermined size, the air pressurizing/depressurizing unit 120 depressurizes the filling space 226 of the bag 220, which is elastically deformed, to a first reference depressurization pressure P_NR1First reference reduced pressure P_NR1Equal to or less than atmospheric pressure. When the filling space 226 is depressurized to the first reference depressurization pressure P_NR1At this time, a portion of the inner surface of the bag 220 is adsorbed and fixed to the air pressurizing/depressurizing unit 120.

Next, referring to fig. 7, the pressure in the filling space 226 is reduced to the first reference reduced pressure P_NR1In this state, the accommodating space 216 of the outer container 210 is depressurized to the atmospheric pressure or less through the air flow path 133 of the first grip unit 130. At this time, a portion of the inner surface of the bag 220 is adsorbed and fixed to the air pressurizing/depressurizing unit 120, and thus it is possible to prevent the bag 220 from being elastically deformed into an undesired shape, that is, a deformation in which a portion of the bag 220 is sucked into the through hole 217 of the outer container 210 when the accommodating space 216 is depressurized.

On the other hand, in the present embodiment, the pressure of the accommodating space 216 is reduced after the pressure of the filling space 226 is reduced, but the pressure reduction process may be performed simultaneously.

At this time, the first reference decompression pressure P_NR1Is compatible with a second reference decompression pressure P_NR2The same, or a second reference reduced pressure P_NR2In a small size, the accommodating space 216 of the outer container 210 can communicate with the outside of the accommodating space 216 only through the through-hole 217.

Then, when the internal pressure of the accommodating space 216 is lowered to the second reference decompression pressure P_NR2Or lower, the air pressurizing/depressurizing unit 120 supplies the reference pressurizing pressure P, which is the same as or greater than the atmospheric pressure, to the filling space 226_PR. The pressure in the accommodating space 216 is a second reference decompression pressure P smaller than the atmospheric pressure_NR2In the state of (2), a larger ratio is applied to the filling space 226Reference pressure P of greater air pressure_PRAt this time, the bag body 221 of the bag 220 is instantaneously expanded in the receiving space 216 of the outer container 210.

At this time, the following two portions of the filling space 226 of the bag 220 are expanded simultaneously, a portion distant from the opening portion 215 of the outer container 210, i.e., a portion adjacent to the other side 212 of the outer container 210, and a portion close to the opening portion 215, i.e., a portion adjacent to the one side 213 of the outer container 210.

That is, in the case where the decompression process is not performed on the accommodation space 216 of the outer container 210, the reference pressurization pressure P is provided to the filling space 226 at the air pressurization/decompression unit 120_PRAt this time, the expansion starts from the side of the end 222 of the bag 220 where the air hole 124 of the air pressurizing/depressurizing unit 120 is relatively eccentrically located, and thus the bag 220 may be unevenly expanded. When the bag 220 is unevenly inflated, the first inflated portion of the bag body 221 touches the inner wall side of the outer container 210, and the flow path through which the air in the housing space 216 of the outer container 210 is discharged through the through-hole 217 can be closed as the bag 220 is inflated, which may result in failure to inflate the bag 220 to a desired size.

Therefore, in the present embodiment, smooth expansion of the bag 220 can be achieved by uniformly expanding the bag 220 within the accommodation space 216.

On the other hand, in the present embodiment, all of the air holes 124 of the air pressurizing/depressurizing unit 120 are described as the structure for sucking or discharging air, but some of the air holes 124 may suck air and the other air holes 124 may discharge liquid content.

I.e. if the pressure in the filling space 226 is reduced to the first reference reduced pressure P_NR1And the accommodating space 216 is decompressed to a second reference decompression pressure P_NR2When the liquid content is supplied from the other air hole 124 in the state of (2), the bag 220 can be expanded at atmospheric pressure or a pressure close to atmospheric pressure when the liquid content is supplied. In addition, a structure for expanding the pouch 220 by supplying the liquid contents at a pressure greater than or equal to atmospheric pressure is also included in the embodiment of the present invention.

Next, referring to fig. 8, in a state where the filling space 226 of the pouch 220 is expanded to a desired size, in order to maintain the expanded state of the filling space 226, a stopper member 240 is provided at the through hole 217 of the outer container 210.

The dam member 240 of the method for manufacturing a container of the present embodiment may be a sticker or other adhesive member for suppressing inflow of air to the through-hole 217. However, the blocking member 240 may be a valve member such as a check valve that selectively blocks the movement of air, and when the blocking member 240 is formed as the check valve, the blocking member 240 may be disposed in a state of being mounted in the outer container 210 in a preparation step of the container 2.

On the other hand, in the present embodiment, the air pressurizing/depressurizing unit 120 is explained as a configuration of filling the filling space 226 of the bag 220 with air, but a structure in which the air pressurizing/depressurizing unit 120 directly fills the liquid content to the filling space 226 of the bag 220 may also be included in the embodiment of the present invention.

Hereinafter, a method for manufacturing a container according to an embodiment of the present invention will be described in steps.

Fig. 9 is a sequence diagram illustrating the method for manufacturing a container of fig. 4 to 7, and fig. 10 is a sequence diagram illustrating a bag expanding step of the method for manufacturing a container of fig. 9.

Referring to fig. 9 and 10, a container preparation step (S110) is performed to prepare a container 2, the container 2 including: an outer container 210, and a bag 220 coupled to the outer container 210 such that a filling space 226 is located in the receiving space 216 of the outer container 210.

In this case, the container preparation step (S110) includes: a first outer container gripping step of gripping the opposite side end portion 212 of the outer container 210 on the opening portion 215 side by the first gripping unit 130; and a second outer container grasping step of grasping the open portion 215, i.e., the neck portion 214, of the outer container 210.

Next, a bag expanding step (S220) is included, in which air is supplied to the filling space 226 of the bag 220 to expand the filling space 226 of the bag 220 within the accommodating space 216.

In the bag expanding step (S220), first, a bag stretching step (S121) is performed to elastically deform the bag 220 in a direction opposite to the opening portion 215 side of the outer container 210 in a state where the bag 220 is inserted into the accommodation space 216 of the outer container 210.

Next, a bag decompression step (S122) is performed in which the air pressurizing/decompressing unit 120 decompresses the filling space 226 of the elastically deformed bag 220 to the first reference decompression pressure P_NR1Said first reference reduced pressure P_NR1Less than or equal to atmospheric pressure.

Next, an outer container decompression step (S123) is performed to decompress the storage space 216 of the outer container 210 to atmospheric pressure or less through the through-hole 217 formed in the outer container 210.

Next, a bag pressurization step (S124) is performed to inject air into the bag 220 elastically deformed in the bag stretching step (S121) to expand the filling space 226 of the bag 220.

In the pouch expansion step (S120), while air is supplied to the filling space 226 of the pouch 220 such that the volume of the filling space 226 in the accommodating space 216 is increased, the air in the accommodating space 216 is discharged to the outside of the outer container 210 through the penetration holes 217 formed in the outer container 210.

Next, a bag-expanded-state maintaining step (S130) of providing a blocking member 240 at the penetration hole 217 of the outer container 210 to maintain the expanded state of the filling space 226 of the bag 220 in a state where the filling space 226 is expanded is performed.

In the bag-expanded-state maintaining step (S130), the internal pressure of the filling space 226 of the bag 220 is made smaller than the restoring force of the bag, and the force acting on the inner surface of the bag 220 by the pressure of the filling space 226 of the bag 220 and the force acting on the outer surface of the bag 220 by the pressure of the accommodating space 216 between the bag 220 and the outer container 210 are balanced with the restoring force of the bag 220.

Next, a liquid filling step (S140) is performed, the filling space 226 of the expanded pouch 220 is filled with contents in a liquid state, and the contents filled into the filling space 226 of the pouch 220 are filled into the filling space 226 under atmospheric pressure without providing additional pressure to the contents.

According to the proposed embodiment, it is an advantage that the liquid content can be filled in a container comprising a bag of an elastic material and an outer container provided with said bag, using existing filling equipment.

In the foregoing, the preferred embodiments of the present invention have been described, but the present invention is not limited thereto, and various modifications can be made within the scope of the claims and the detailed description of the invention and the accompanying drawings, and such modifications are clearly within the scope of the present invention.

Forms for carrying out the invention

Forms for carrying out the invention have been described together in the above-mentioned detailed description of the invention.

Industrial applicability

The present invention relates to a method for manufacturing a container and an apparatus for manufacturing a container, which are applicable to a method or an apparatus for manufacturing a container that stores and discharges a liquid in such a manner that all the contents can be used, with repeatability, and thus with industrial applicability.

Claims

1. A method for manufacturing a container, the container comprising: an outer container, and a bag of elastic material joined to the outer container and internally formed with a filling space; wherein the content of the first and second substances,

the method comprises the following steps:

a container preparation step of preparing a container, the container comprising: an outer container, and a bag coupled to the outer container such that a filling space is located in a receiving space of the outer container, an

A bag expanding step of supplying air to the filling space of the bag to expand the filling space of the bag within the accommodating space.

2. The method for manufacturing a container according to claim 1,

the pouch expanding step comprising:

a bag stretching step of elastically deforming the bag in a direction opposite to an opening portion side of the outer container in a state where the bag is inserted into the accommodation space of the outer container, and

a pouch pressurization step of injecting air into the pouch elastically deformed in the pouch stretching step to expand the filling space of the pouch.

3. The method for manufacturing a container according to claim 2,

in the bag stretching step, an air pressurizing/depressurizing unit of an apparatus for manufacturing a container is inserted into the filling space of the bag, and the air pressurizing/depressurizing unit is moved from an opening portion side of the container to an end portion side of the container to elastically deform the bag.

4. The method for manufacturing a container according to claim 3,

the pouch expanding step further comprises:

a bag depressurization step of depressurizing the filling space of the bag elastically deformed to a first reference depressurization pressure, which is less than or equal to atmospheric pressure, by the air pressurization/depressurization unit, and

an external container depressurizing step of depressurizing the storage space of the container to atmospheric pressure or less through a through hole formed in the container;

when the pressure of the accommodating space of the outer container is reduced to be the same as or below a second reference reduced pressure, in the bag pressurizing step, a pressurizing pressure equal to or greater than atmospheric pressure is provided to the filling space of the bag to expand the filling space of the bag.

5. The method for manufacturing a container according to claim 4,

in the outer-vessel depressurization step,

the accommodating space of the outer container communicates with the outside of the accommodating space only through the through hole.

6. The method for manufacturing a container according to claim 2,

in the step of pressurizing the bag, the bag is pressurized,

a portion of the filling space of the bag that is remote from the opening portion side of the outer container and a portion that is close to the opening portion side are expanded simultaneously.

7. The method for manufacturing a container according to claim 1,

in the bag expanding step, while air is supplied to the filling space of the bag so that the volume of the filling space within the accommodating space is increased, the air in the accommodating space is discharged to the outside of the outer container through the through-holes formed in the outer container,

the method for manufacturing a container further includes a bag-expanded-state maintaining step of providing a blocking member at the through hole of the outer container to maintain an expanded state of the filling space in a state where the filling space of the bag is expanded,

in the bag-expanded-state maintaining step, the internal pressure of the filling space of the bag is made smaller than the restoring force of the bag,

a force acting on an inner surface of the bag by the pressure of the filling space of the bag and a force acting on an outer surface of the bag by the pressure of the accommodating space between the bag and the outer container are in equilibrium with the restoring force of the bag.

8. The method for manufacturing a container according to claim 1,

further comprising a liquid filling step of filling the filling space of the expanded bag with contents in a liquid state,

the contents filled into the filling space of the bag are filled into the filling space under atmospheric pressure without providing additional pressure to the contents.

9. The method for manufacturing a container according to claim 1,

the container preparation step comprising:

a first outer container gripping step of gripping an end portion on the opposite side of the opening portion side of the outer container, an

A second outer container gripping step of gripping an opening portion side of the outer container.

10. The method for manufacturing a container according to claim 1,

the pouch expanding step comprising:

a bag pressurizing step of injecting a liquid content into the bag elastically deformed in the bag stretching step to expand the filling space of the bag.

11. An apparatus for manufacturing a container, the container comprising: an outer container, and a bag of elastic material joined to the outer container and internally formed with a filling space; wherein the content of the first and second substances,

the apparatus for manufacturing a container includes:

an air pressurizing/depressurizing unit inserted into the filling space of the bag, having a plurality of air holes formed on an outer surface thereof to introduce or discharge air into or from the filling space, and being slidable in a direction from an opening side of the bag to an end side of the bag.

12. The apparatus for manufacturing a container according to claim 11,

the air pressurizing/depressurizing unit includes:

a unit body capable of sliding, an

A head portion formed at one side of the unit body and having the plurality of air holes formed therein;

the end of the head is formed in a circular shape.

13. The apparatus for manufacturing a container according to claim 12,

the air hole is formed in a side surface of the head or the end side of the head.

14. The apparatus for manufacturing a container according to claim 11,

a clamping part of the bag is inserted into one side of the outer container, and an opening part communicated with the accommodating space of the outer container is formed,

the apparatus for manufacturing a container further includes a first grasping unit pressurizing the other side of the outer container to grasp the outer container.

15. The apparatus for manufacturing a container according to claim 14,

further comprising a stand unit provided with the air pressurizing/depressurizing unit, to which the engaging portion of the bag which engages with the opening portion of the outer container is attached,

when the first grip unit pressurizes the other side of the outer container, the stage unit moves downward by a preset distance.

16. The apparatus for manufacturing a container according to claim 14,

further comprising a second grasping unit that grasps one side of the outer container in a direction orthogonal to a direction in which the first grasping unit grasps the outer container.

17. The apparatus for manufacturing a container according to claim 14,

a through hole communicating with the accommodating space is formed at the other side of the outer container,

the first grip unit includes:

a first grip unit main body which is provided with a first grip unit main body,

a suction flow path formed in the first grip unit body and communicating with the through hole, and

and an elastic grip portion that comes into contact with the other side of the outer container in a state where the through hole of the outer container is in contact with the inhalation flow path.

18. A container manufactured by the method for manufacturing a container according to claim 1,

further comprising a coupling unit inserted into an opening portion side of the bag and having a through space formed therein for communicating the filling space and the outside of the bag in a state where the outer container and the bag are joined,

the coupling unit pressurizes a portion of the packing bag toward an inner wall side of the opening portion of the outer container.