KR101075125B1 - Delaminated bottle manufacturing process - Google Patents

Abstract

The present invention relates to a method for producing a multilayer container.

According to the present invention, the first body forming step of forming the first body is formed in which the inlet to the liquid content is formed, and the bottom surface is formed so as to contain the liquid contents entering and exiting through the inlet of the first body A second body molding step of forming a second body and a second body manufactured by a second body molding step on the lower part of the first body manufactured through the first body molding step to form an inner container by high frequency fusion; A container forming step, an inner container insert step for introducing the inner container manufactured in the inner container forming step into an insert molding mold, and a cooling gas blowing the cooling gas into the inside of the inner container, and blowing into the inside of the inner container A blower step of performing a pressure measuring step of measuring a pressure change of the liquid, and after the inner container insert step, the liquid to surround the outer surface of the inner container Insert injection molding step of injecting a phase resin into the insert molding mold to form an outer container on the outer surface of the inner container to form a multi-layer container, and the take-out step of taking out the multi-layer container from the insert molding mold after the insert injection molding step By being able to manufacture multi-layered containers, it is possible to store contents that are sensitive to chemical reactions such as liquid cosmetics, beverages, and pharmaceuticals, and are easy to handle and produce, with a dense and luxurious aesthetic like glass containers. Will be.

Multi-layer container, laminated container, cosmetics container, insert injection method, decoration

Description

Multi-layer container manufacturing method {DELAMINATED BOTTLE MANUFACTURING PROCESS}

The present invention relates to a method for manufacturing a multi-layered container, and more particularly, the first body and the second body are divided into a first body forming an inlet and a second body forming a bottom surface of the inner container containing the liquid contents. The body is bonded by high frequency fusion, and relates to a method for manufacturing a multi-layer container formed to wrap the outer container on the outer surface of the inner container.

In general, a container is widely used as a means for storing the liquid content, that is, liquid cosmetics, beverages, drugs, etc., the glass material is not widely used as a material of the container is a chemical reaction.

In particular, the container made of glass can further enhance the contents contained in the container by causing the user to create a profound and luxurious aesthetic. However, such a container made of glass may be damaged by carelessness during transportation or use.

Therefore, in order to compensate for this, a container is manufactured using a plastic resin which is light, durable and productive in recent years. In order to manufacture a container using a plastic resin as described above, a blow molding method is generally used. In the blow molding, molten resin is pre-molded in a tube form by extrusion or injection, and the inside of the blow molding is formed. Is inserted into a mold formed to have a shape that matches the outer shape of the container is blown air inflated by cooling to solidify to form a container that can store a solid of a specific form, that is, liquid cosmetics, beverages, drugs and the like.

In addition, the coloration of the container manufactured as described above is usually performed by simply mixing a colored dye or pigment into a resin and molding it into a single layer. As such, simply adding a dye or a pigment is not only difficult to express the desired texture, but also has a problem of poor glossiness.

The present invention is to solve the above problems, such as a container made of glass with a heavy and luxurious aesthetic, excellent decoration, easy to handle and produce, and sensitive to chemical reactions such as liquid cosmetics, beverages, drugs The purpose is to provide a method for manufacturing a multilayer container that can store the.

The above object is, the first body forming step of forming a first body for forming the inlet to the liquid content is entered, and the bottom surface is formed so as to contain the liquid contents entering and exiting through the inlet of the first body A second body molding step of forming a second body and a second body manufactured by a second body molding step on the lower part of the first body manufactured through the first body molding step to form an inner container by high frequency fusion; A container forming step, an inner container insert step for introducing the inner container manufactured in the inner container forming step into an insert molding mold, and a cooling gas blowing the cooling gas into the inside of the inner container, and blowing into the inside of the inner container A blower step of performing a pressure measuring step of measuring a pressure change of the liquid phase after the inner container insert step surrounds the outer surface of the inner container It includes an insert injection molding step of injecting paper into the insert molding mold to form an outer container on the outer surface of the inner container to form a multi-layer container, and taking out the multi-layer container from the insert molding mold after the insert injection molding step. It is achieved by a method for producing a multilayer container characterized by the above-mentioned.
The method may further include a comparing step of determining whether there is a difference by comparing the pressure value inside the inner container measured in the pressure measuring step with a preset pressure value.
If the pressure value measured in the comparison step is higher or lower than the set pressure value characterized in that it further comprises a test step for determining that the inner container is broken.

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According to the method of manufacturing a multi-layered container according to the present invention, each body divided into two or more is joined by high frequency fusion to form an inner container, and then the inner container is inserted into an insert molding mold and an insert is injected to form an outer container. The inner container can be formed in various shapes and colors, and because each body is joined by high frequency fusion, it not only has excellent airtightness but also does not contain impurities such as materials different from the inner container, for example, adhesives. It is advantageous to store contents sensitive to chemical reactions, such as cosmetics, beverages and pharmaceuticals.

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Then, after the inner container is introduced into the insert molding mold, it is possible to check whether each of the bodies are hermetically bonded to the high frequency fusion while blowing the cooling gas into the inner container, thereby improving the productivity of the multilayer container.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

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

1 is a perspective view showing a multilayer container according to the present invention, Figure 2 is a cross-sectional view showing a multilayer container according to the present invention.

Referring to the drawings, the multi-layer container according to the present invention is located in the lower portion of the first body 10 and the first body 10 is formed with the inlet 12 through which the contents of the liquid flows to contain the contents of the liquid The inner container 30 and the inlet of the inner container 30 are formed by joining the second body 20 and the first body 10 and the second body 20, the bottom surface 22 is formed so that It consists of an outer container 50 formed to surround the outer surface except 12.

The first body 10 is formed with an inlet 12 through which the contents of the liquid enter and exit, a fastening screw thread 18 is formed at the outer diameter of the inlet 12, as shown in FIG. 9. As described above, the inner diameter of the lid 70 that opens and closes the inlet 12 of the first body 10 is engaged.

However, the inlet 12 of the first body 10 is not limited thereto and may be variously modified. For example, a pump unit (not shown) having a discharge port for discharging liquid contents may be installed at the inlet 12 of the first body 10. In some cases, the inlet 12 may be installed. Concave-convex (not shown) may be formed to form a lid (not shown) is fitted with the concave-convex.

As described above, the first body 10 having the inlet 12 formed thereon is formed to have any one of a hollow cylindrical shape, a square pillar shape, a polygonal pillar shape, and an elliptic cylinder shape. At the lower end of the 10, a protruding concave-convex 14 facing downward is formed along the lower end of the first body 10.

In addition, the second body 20 is positioned below the first body 10, and the second body 20 has a shape corresponding to the lower end of the first body 10 described above. In particular, the recessed concave-convex 24 having a shape corresponding to the protruding concave-convex 12 formed at the lower end of the first body 10 is formed along the upper end of the second body 20.

The lower part of the second body 20 as described above is formed with a bottom surface 22 so as to contain the contents of the liquid, the lower end of the first body 10 and the upper end of the second body 20 is bonded to the liquid It will form an inner container 30 that can store the contents of the.

That is, the protruding concave-convex 14 formed at the lower end of the first body 10 and the recessed concave-convex 24 formed at the upper end of the second body 20 are combined with each other, and the parts thus joined are bonded by high frequency fusion. By doing so, the liquid contents are injected into the inner container 30 through the inlet 12 formed in the first body 10, and the injected liquid contents are contained in the bottom surface of the second body 20.

As such, the inner container 30 formed by bonding the first body 10 and the second body 20 to each other may form various designs according to the shape and color of the first body 10 and the second body 20. It becomes possible.

For example, the first body 10 may be formed to have a blue color, and the second body 20 may be formed to have a yellow color. In addition, the first body 10 may be formed to have a hollow cylindrical shape, and the second body 20 may be formed to have a square pillar shape. At this time, the portion where the first body 10 and the second body 20 are bonded to each other is naturally formed so as not to leak the liquid contents contained in the inner container 30.

In addition, when the first body 10 and the second body 20 to form a variety of colors, preferably the inner container 30 formed by hermetically bonding the first body 10 and the second body 20. ) Is formed to have a colored color to block the direct rays of the sun, including ultraviolet rays or infrared rays, or the first body 10 and the second body 20 are formed of an opaque material.

This reason is to prevent the possibility that the liquid contents stored in the inner container 30 may be deteriorated by chemical reaction when the direct ray including ultraviolet rays or infrared rays is irradiated into the inner container 30.

Thus, the outer container 50 is formed on the outer surface of the inner container 30 formed by bonding the first body 10 and the second body 20. The outer container 50 is made of a transparent material so that light is transmitted through the outer container 50, the inner container 30 is projected from the outside of the outer container 50, the design of the inner container is visible.

The outer container 50 is formed to surround the entirety of the inner container 30 except for the inlet 12 of the inner container 30, that is, the inlet 12 formed on the upper portion of the first body 10. Even if the multilayer container is dropped on the floor due to carelessness of the user, the impact is not directly transmitted to the inner container 30, but the outer container 50 is absorbed, thereby preventing damage to the inner container 30. It is possible to safely store or store the contents of the liquid contained in (30).

In addition, between the inner container 30 and the outer container 50, as shown in Figure 9, the decoration of the thin film having a material different from the material of the inner container 30 and the material of the outer container 50 60 may be formed.

In other words, the decoration 60 of the thin film is formed with a predetermined pattern on a plate having a very thin thickness, such as a metal piece, the decoration 60 of the thin film is preferably made of a material that can reflect light is transparent Light transmitted through the outer container 50 made of a material is reflected by the decorative body 60 of the thin film to have excellent decorative properties.

On the other hand, in order to manufacture a multi-layer container with excellent decoration as described above, a molding apparatus for professionally molding only the multi-layer container is required, and the molding apparatus is mainly injected into the first body 10 and the second body 20, respectively. The high frequency fusion welding apparatus 80 and the first body 10 and the second body 20 to bond the lower end of the first body 10 and the upper end of the second body 20 formed by the injection apparatus and the injection apparatus. ) Is blown into the inside of the inner container 30 formed by bonding the cooling gas and injects a liquid resin to surround the outer surface of the inner container 30 in this state to the outer surface of the inner container (30) And an insert molding apparatus for forming 50).

Such a molding apparatus for manufacturing a multi-layered container may be implemented by an automatic installation in some cases. After the first body 10 and the second body 20 are injection-molded, the molding apparatus moves to a high frequency fusion apparatus to move the first body. 10 and the second body 20 may be bonded to form an inner container 30, and then may be supplied to an insert molding apparatus that forms an outer container 50 by wrapping an outer surface of the inner container 30.

Hereinafter, a process of manufacturing the multilayer container by the molding apparatus described above will be described.

Figure 3 is a flow chart showing the molding process of the multi-layer container manufacturing method according to the present invention. Referring to the drawings, a multi-layer container manufacturing method according to the present invention, the first molding step (S110) and the second molding step (S120) for molding the first body 10 and the second body 20, respectively, largely And, the inner container forming step (S130) to form the inner container 30 by bonding the first body 10 and the second body 20, and the inner container 30 to the insert molding mold 40 Insert injection molding step (S140) to insert and insert molding molding step (S150) to form a laminated container by molding the outer container 50 surrounding the outer surface of the inner container 30 in the insert molding mold (40) ) And a take-out step (S160) for taking out the laminated container from the insert molding mold (40).

The first molding step S110 is to mold the first body 10 in which the inlet 12 through which the liquid contents enter and exit is formed, and the first body 10 may be performed by general injection molding. In addition, the second body forming step (S120) is to mold the second body 20, the bottom surface 22 is formed to contain the liquid contents entering and exiting through the inlet 12 of the first body 10 This can also be done by general injection molding.

In particular, the first body 10 and the second body 20 formed in the first forming step (S110) and the second body forming step (S120) of the first body 10 as shown in FIG. It is preferable to form the protruding concave-convex 14 and the recessed concave-convex 24 on the lower end and the upper end of the second body 20, respectively.

Thus, the protruding concave-convex 14 and the concave-convex concave-convex 24 are formed in the first body 10 and the second body 20, the first body 10 in the inner container forming step (S130) to be described later And the bonding area of the second body 20 can be concentrated to prevent the liquid contents contained in the inner container 30 from leaking in the joint portion to improve the airtightness of the inner container (30).

Inner container forming step (S130), by bonding the first body 10 and the second body 30 manufactured through the first body molding step (S110) and the second body molding step (S120) the inner container 30 In order to bond the first body 10 and the second body 30 so as to preferably be bonded by high frequency fusion.

That is, as shown in FIG. 5, the high frequency fusion device 80 includes the protruding concave-convex 14 formed at the lower end of the first body 10 and the recessed concave-convex 24 formed at the upper end of the second body 20. The parts in contact with each other are concentrated at high frequency.

 In this way, when the first body 10 and the second body 20 are joined by high frequency fusion, only the portion where the protruding concave-convex 14 and the concave-convex concave-convex 24 are in contact with each other intensively induces high frequency fusion to the first body. Not only can the bonding of the 10 and the second body 20 be performed quickly, but also the excellent airtightness with respect to the joined part.

In addition, since the first body 10 and the second body 20 are joined by high frequency fusion, a material different from the inner container 30, for example, impurities, such as an adhesive, is not included, so that the liquid cosmetics, drinks, It is advantageous to store contents sensitive to chemical reactions such as drugs.

As described above, when the first body 10 and the second body 20 are joined to form the inner container 30, as shown in FIG. 6, the insert molding mold 40 inserts the inner container 30. An inner container insert step (S140) to be inserted into is performed.

At this time, a blower step (S142) of inserting a supply nozzle 42 through the inlet of the inner container 30 to blow the cooling gas into the inner container 30 is performed. In the blower step (S142), when the liquid resin forming the outer container 50 is injected into the outer surface of the inner container 30 located in the insert molding mold 42, the inner container 30 is injected pressure of the liquid resin It is prevented from being crushed by over temperature.

At this time, the cooling gas supplied into the interior of the container 30 is the inner container by the high temperature liquid resin injected into the insert molding mold 42 to form the outer container 50 to the outer surface of the inner container 30. The supply nozzle 42 is inserted through the inlet of the inner container 30 to prevent the 30 from being deformed due to thermal deformation, and the cooling gas toward the inside of the inner container 30 from the supply nozzle 42. Is sprayed.

The cooling gas is any one of an unreacted gas (inert gas) or oxygen, such as nitrogen (N ₂ ) or argon (Ar), which does not cause a chemical reaction with another material, or oxygen, through the supply nozzle 42. ) Is supplied to the inside of the liquid, wherein the temperature of the cooling gas injected from the supply nozzle 42 is injected into the insert molding mold 42 to form the outer container 50 to the outer surface of the inner container 30. Of course, the lower temperature is injected into the interior of the inner container (30).

In addition, the blower step (S142) in the inner container forming step (S130) supply nozzle (42) in order to check the damage to the joint portion of the first body 10 and the second body 20, which may be possibly Pressure measurement step (S144) for measuring the pressure change of the cooling gas blown into the inner container (30) is performed.

Then, the pressure change value of the cooling gas blown into the inner container 30 in the blower step (S142) after the comparison step (S146) to determine whether there is a difference compared to a predetermined pressure change value after the measured pressure change When the value is higher or lower than the set pressure change value, the inner container 30 through the inspection step (S148) to determine that the bonding portion of the first body 10 and the second body 20 is not hermetically bonded or broken. ) Can be confirmed.

As such, when the defect of the inner container 30 is confirmed and the inner container 30 is defective, the inner container 30 is taken out from the insert molding mold 40, and the inner container 30 is shown in FIG. 7. ), If the defect is not generated, the liquid resin is injected into the insert molding mold 40 so as to surround the outer surface of the inner container 30 to form the outer container 50 on the outer surface of the inner container 30. The insert injection molding step (S150) forming the multi-layer container 100 is performed.

And, when the insert injection molding step (S150) is completed, as shown in Figure 8, through the take-out step (S160) to take out the multi-layer container 100 in the insert molding mold 40 to produce a highly decorative multi-layer container Done.

On the other hand, the present invention is not limited only to the embodiments described above, but can be modified and modified within the scope not departing from the gist of the present invention, it should be seen that such modifications and variations are included in the technical idea of the present invention. do.

1 is a perspective view showing a multi-layered container according to the present invention.

2 is a cross-sectional view showing a multi-layered container according to the present invention.

Figure 3 is a flow chart showing the molding process of the multi-layer container manufacturing method according to the present invention.

Figure 4 is a schematic diagram showing a state of coupling the first body and the second body formed in the first body molding step and the second body molding step of the multi-layer container manufacturing method according to the present invention.

5 is a schematic view showing a state of forming an inner container by bonding the first body and the second body by high frequency fusion in the method of manufacturing a multilayer container according to the present invention.

6 is a schematic view showing a state in which the inner container is inserted into the insert molding mold in the method of manufacturing a multilayer container according to the present invention.

7 is a schematic view showing a state in which a cooling gas is blown into the inner container of the manufacturing method of the multilayer container according to the present invention and the insert is injected into the outer surface of the inner container.

Figure 8 is a schematic diagram showing a state of taking out the insert injection vessel of the multi-layer container manufacturing method according to the present invention.

9 is a perspective view showing a multilayer container in which a thin film decoration is formed between an inner container and an outer container in a method of manufacturing a multilayer container according to the present invention.

<Explanation of symbols for the main parts of the drawings>

10: first body 12: inlet

14: first body side unevenness 20: second body

22: bottom surface 24: second body side unevenness

30: inner container 40: insert molding mold

42: supply nozzle 50: outer container

60: ornament 70: lid

80: high frequency welding device

Claims (11)

delete delete delete delete delete A first body forming step (S110) for forming a first body 10 having an inlet 12 through which liquid contents enter and exit, and A second body forming step (S120) of forming a second body 20 having a bottom surface 22 formed therein to contain liquid contents entering and exiting through the inlet 12 of the first body 10; The inner container 30 by high frequency fusion of the second body 20 manufactured through the second body molding step S120 to the lower portion of the first body 10 manufactured through the first body molding step S110. Internal container molding step of forming (S130), An inner container insert step (S140) for introducing the inner container 30 manufactured in the inner container forming step 130 into the insert molding mold 40; A blower step (S142) for blowing a cooling gas into the inner container 30, and performing a pressure measuring step of measuring a pressure change of the cooling gas blowing into the inner container 30; After the inner container insert step (S140), the liquid resin is injected into the insert molding mold 40 to surround the outer surface of the inner container 30 to form the outer container 50 on the outer surface of the inner container 30. Insert injection molding step (S150) to form a multi-layer container 100, And a take-out step (S160) of taking out the multilayer container (100) from the insert molding mold (40) after the insert injection molding step (S150). delete delete delete The method of claim 6, And a comparison step (S146) of determining whether there is a difference by comparing the pressure value of the inside of the inner container measured in the pressure measuring step (S144) with a preset pressure value. The method of claim 10, When the pressure value measured in the comparison step (S146) is higher or lower than the set pressure value, the multi-layer container manufacturing method characterized in that it further comprises an inspection step (S148) to determine that the inner container 30 is broken.

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