KR101151337B1 - A cap of the bottle and making method besides - Google Patents

A cap of the bottle and making method besides Download PDF

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Publication number
KR101151337B1
KR101151337B1 KR1020100018844A KR20100018844A KR101151337B1 KR 101151337 B1 KR101151337 B1 KR 101151337B1 KR 1020100018844 A KR1020100018844 A KR 1020100018844A KR 20100018844 A KR20100018844 A KR 20100018844A KR 101151337 B1 KR101151337 B1 KR 101151337B1
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South Korea
Prior art keywords
lid
coating
workpiece
storage container
molding
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KR1020100018844A
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Korean (ko)
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KR20110099863A (en
Inventor
김청
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주식회사 새암
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Priority to KR1020100018844A priority Critical patent/KR101151337B1/en
Publication of KR20110099863A publication Critical patent/KR20110099863A/en
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Publication of KR101151337B1 publication Critical patent/KR101151337B1/en

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Closures For Containers (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

The present invention provides a lid for a storage container and a method of manufacturing the same. The provided storage container lid and its manufacturing method include a coating and printing process for printing various patterns on the outer surface after tin or chrome plating the steel plate of the plate-like body, and cutting and pressing the steel plate to form a base of the lid. A blank end drawing process for forming a primary workpiece having a shape, a press forming process for forming a secondary workpiece having a curing portion and a lug portion by pressing the primary workpiece, and a secondary workpiece by using a rotary tablet And a compound injection process in which the molding compound liquid is introduced into the inside and rotated, and the molding compound liquid flows out of the side wall and the bottom surface of the secondary workpiece, and the molding compound liquid injected into the secondary workpiece is molded. Lining forming process to form a lining, and the secondary workpiece is rotated again by using a rotary pallet and at the same time The lid is prepared by a coating process of adding a coating compound solution to form a coating layer on the bottom surface and a foaming process of foaming the lining by exposing the secondary workpiece to a drying furnace at 230 ° C. for 1 to 2 minutes to form a lid. By improving the structure, it is possible to prevent direct corrosion of the lid due to the contents filled in the storage container by blocking the direct contact of the steel plate which is the material that forms the lid with the contents such as drinks or foods contained in the storage container. .

Description

Storage cap and its manufacturing method {A cap of the bottle and making method besides}

The present invention relates to a lid for a storage container, and more particularly, to form a coating layer on one surface of the lid for a storage container for opening and closing the storage container, and directly to the steel plate which is a material forming a lid with contents such as beverages or foods contained in the storage container. By preventing contact, the lid of the storage container and the container for preventing the deterioration of the lid due to the contents filled in the storage container as well as the deterioration of the contents caused by the by-products generated during the corrosion action. It relates to a manufacturing method.

In general, the lid for sealing the opening of the storage container for drinks or foods, such as juices is easy to open, the consumer can check whether the deterioration before drinking the contents are widely used.

The lid is made of metal, the lower end of which is curled inward to form a curling portion, and a lug portion is formed on the periphery of the curling portion.

The lid configured as described above is inserted into the opening of the storage container.

That is, the upper end of the lid is pressed against the upper surface of the inlet of the storage container by the pressing force which is locked while the lug part of the lid moves along the inclined surface of the spiral protrusion of the storage container. It hangs on and stops.

Thus, the conventional manufacturing process of the cap having the configuration and operation as described above will be described.

Looking at the general manufacturing process of the lid, the coating process by the paint on the inner surface (surface in contact with food) of the tin or chromium plated steel sheet,

Painting and printing process of steel sheet for printing various pattern shapes at equal intervals on the outer surface,

A press forming process of forming the steel sheet transferred through the coating and printing process of the steel sheet to have a basic shape of a cap by press working;

A lid for a storage container is manufactured through a liner molding process in which a compound is applied to the inside of the lid transferred through the press molding process to form a liner.

The lid manufactured as described above can greatly reduce the contents being deteriorated by sealing the storage container, and the consumer can easily check whether the contents are deteriorated.

However, such a conventional lid had the following problems when used in practice.

That is, the steel plate, which is the main material of the conventional lid, has a structure in which a coating layer (film) made of paint is formed to prevent direct contact with the contents filled in the storage container. However, damage to the painted surface such as foreign matter, scratches, and cracks on the painted surface occurs during the coating process or during the handling (transportation, stacking, etc.) of the coated steel sheet and during the press working process, resulting in poor shielding of the contents. Corrosion of the lid and by-products generated through the corrosive action was introduced into the contents there was a problem of altering the contents.

Thus, the present invention was devised to solve the general problems occurring in the lid for the existing storage container,

The problem to be solved by the present invention is to fundamentally block the direct contact of the steel plate which is the material forming the lid with the contents, such as beverages or foods contained in the storage container through structural improvement of the lid for the storage container to open and close the storage container, The present invention provides a lid for a storage container and a method of manufacturing the same that can prevent the corrosion of the lid due to the contents filled in the container.

Storage container lid of the present invention for achieving the above object

Painting and printing process for printing various patterns on the outer surface after tin or chrome plating of steel plate

A blank end drawing process of cutting the steel sheet and then pressing to form a primary workpiece having a basic shape of a lid;

A press molding process of pressing the primary workpiece to form a secondary workpiece having a curing portion and a lug portion;

A compound injection step of rotating the secondary workpiece by using a rotary pellet and simultaneously introducing a molding compound liquid into the sidewall portion and the bottom surface of the secondary workpiece of the secondary workpiece;

A lining molding process of forming a lining by molding a molding compound liquid injected into the secondary workpiece;

Coating process of forming a coating layer on the bottom surface by rotating the secondary workpiece again using a rotary tarlet and simultaneously adding a coating compound solution therein;

The secondary workpiece is placed in a drying furnace at 230 ° C. and exposed for 1 to 2 minutes to include a foaming process for foaming the lining.

According to the present invention, filling the storage container by forming a coating layer on one surface of the lid for the storage container for opening and closing the storage container to block the direct contact of the steel plate, which is a material forming the lid with the contents such as beverages or foods contained in the storage container, In addition to preventing the corrosion of the lid due to the contents in advance, there is an effect that can prevent the deterioration of the contents due to by-products generated during the corrosion.

1 is a process chart showing a manufacturing method of a lid for a storage container according to a first embodiment of the present invention.
Figure 2 is a flow chart for showing the manufacturing method of the lid for a storage container according to a first embodiment of the present invention.
3 is a process chart showing the manufacturing method of the lid for a storage container according to a second embodiment of the present invention.
Figure 4 is a flow chart for showing the manufacturing method of the lid for a storage container according to a second embodiment of the present invention.

Hereinafter, a manufacturing method of a lid for a storage container according to a first embodiment of the present invention with reference to the accompanying drawings will be described in detail.

1 is a process chart showing a manufacturing method of a lid for a storage container according to a first preferred embodiment of the present invention, Figure 2 shows a manufacturing method of a lid for a storage container according to a first embodiment of the present invention It is a flowchart for.

1 and 2, first, the steel sheet 10 of the plate-like body is tin or chromium plated, and then the coating and printing process (S110) of the steel sheet to print a variety of patterns on the outer surface.

Thereafter, the steel sheet 10 is cut and then press-processed to perform a blank-and-drawing process (S120) of forming a primary workpiece 20 having a basic shape of a lid.

At this time, the size of the steel sheet 10 to be cut is preferably made of a size enough to mold the lid.

Thereafter, the primary work 20 is pressed to perform a press molding process (S130) of forming a second work 30 having a curing part and a lug part.

At this time, the curry portion is a portion bent the end of the lid, the lug portion is a portion engaging with the spiral portion of the storage container (not shown). Thus, the curry portion and the lug portion is a processing portion provided in a known lid, a detailed description thereof will be omitted.

Subsequently, the secondary compound 30 is rotated using the rotary pellet 40 and a molding compound solution is introduced into the inside of the secondary compound 30 so that the molding compound solution is formed on the sidewall 21 and the bottom of the secondary workpiece 30. Compound injection process (S140) to be introduced to the outside of the surface 22 is performed.

At this time, the molding compound solution introduced into the secondary workpiece 30 flows radially outward from the center portion of the secondary workpiece 30 by the centrifugal force of the secondary workpiece 30 that is rotating. It is located in the shape of a circular ring on the side wall portion 21 and the bottom surface 22 of 30.

In addition, the molding compound liquid is a PVC compound in the liquid state, the viscosity is preferably 10000 ~ 16000 CPS.

At this time, when the viscosity is less than 10000 CPS, the molding compound liquid flows out of the secondary workpiece 30 during the rotation operation of the secondary workpiece 30, and when the viscosity is 16000 CPS or more, the molding compound liquid is the sidewall portion ( 21) and the bottom surface 22 there is a problem that does not move smoothly.

Thereafter, the molding compound solution injected into the secondary workpiece 30 is molded to form a lining molding process (S150) to form a lining 50.

At this time, the mold molding apparatus (not shown) used in the mold molding is a known technique generally used in the manufacture of a lid, a detailed description thereof will be omitted.

Subsequently, the secondary workpiece 30 having the lining 50 is rotated again by using the rotary pallet 40 and at the same time a coating compound solution is added thereto to form the coating layer 60 on the bottom surface 22. To perform a coating process (S160).

In addition, the coating compound is a liquid PVC compound, the viscosity is preferably 2500 to 3000 CPS.

At this time, when the viscosity of the coating compound solution is 2500 CPS or less, the coating compound liquid moving radially increases and the outer side of the coating layer 60 becomes thick. When the viscosity is 3000 CPS or more, the coating compound liquid does not move smoothly. There is a problem in that the central portion of the coating layer 60 is not thick.

In addition, the rotational speed of the rotary tablet 40 in the coating process (S160) is preferably made of 2000 ~ 3000rpm.

At this time, when the rotational speed is 2000 rpm or less, the central portion of the coating layer 60 is thickened, and when the rotational speed is 3000 rpm or more, the outer side of the coating layer 60 is thickened to form a coating layer 60 having a uniform thickness. There is a problem that can not be formed.

In addition, the thickness of the coating layer 60 formed on the secondary workpiece 30 is preferably made within 0.05 ~ 0.2mm.

At this time, when the thickness of the coating layer 60 is less than 0.05mm, the function of the coating layer 60 to block the contact of the contents and the lid accommodated in the storage container is reduced, the thickness of the coating layer 60 is 0.2mm or more In this case, the consumer may not be able to check whether the contents contained in the storage container are corrupt.

That is, when filling the contents into the storage container, the contents of the hot state are put into the container. As the contents of the hot state cool down, the inside of the storage container becomes a vacuum state, and the bottom surface of the lid finely protrudes into the storage container, and the lid is opened. This is because the protruding part is returned to its original state and makes a light sound of "뻥", through which the user can check whether the contents are corrupted or not.

In addition, the rotary tablet 40 is a general known technique used when manufacturing the lid will be omitted a detailed description thereof.

Thereafter, the secondary workpiece 30 is introduced into a drying furnace 70 at 230 ° C. to be exposed for 1 to 2 minutes to perform a foaming process (S170) for foaming the lining 50.

At this time, if the temperature of the drying furnace 70 is 230 ℃ or less, the lining 50 foaming process is not made properly, if the temperature of the drying furnace 70 is 230 ℃ or more, the physical properties of the lining 50 is There is a problem that is deformed.

In addition, when the input time of the drying furnace 70 is 1 minute or less, the lining 50 foaming process is not performed properly, if the input time of the drying furnace 70 is 2 minutes or more, the lining 50 inside There is a problem that a pinhole is caused by the bubble shell of the burst.

As a result, a lid for a storage container is manufactured through the method of manufacturing a storage container lid according to the first preferred embodiment of the present invention, and the lid for the storage container manufactured by the method is in contact with the lid of the contents filled in the storage container. By completely blocking, it is possible to prevent corrosion of the lid due to the contents filled in the storage container and the deterioration of the contents generated thereby.

On the other hand, the manufacturing method of the lid for a storage container of the present invention may be made in the order of the process described below according to the embodiment.

Hereinafter, a manufacturing method of a lid for a storage container according to a second embodiment of the present invention with reference to the accompanying drawings will be described in detail.

Figure 3 is a process chart showing a manufacturing method of the lid for a storage container according to a second embodiment of the present invention, Figure 4 shows a manufacturing method of the lid for a storage container according to a second embodiment of the present invention. It is a flowchart for.

First, after the tin or chromium plated steel sheet 10 of the plate-shaped body to perform a painting and printing process (S110) for printing a variety of patterns on the outer surface.

Thereafter, the steel sheet 10 is cut and then press-processed to perform a blank-and-drawing process (S120) of forming a primary workpiece 20 having a basic shape of a lid.

Thereafter, the primary work 20 is pressed to perform a press molding process (S130) of forming a second work 30 having a curing part and a lug part.

Thereafter, the secondary workpiece 30 is rotated by using the rotary tarlet 40 and at the same time a coating compound solution is added thereto to form a coating layer 60 on the bottom surface 22. To perform.

At this time, the rotational speed of the rotary tablet 40 is preferably 2000 ~ 3000rpm.

In addition, the thickness of the coating layer 60 is preferably made within 0.05 ~ 0.2mm.

The coating layer 60 performs a coating layer curing step (S250) of applying a heat in the drying furnace 70 to heat the coating.

Thereafter, the secondary workpiece 30 is rotated again by using the rotary pallet 40 and at the same time, a molding compound solution is added thereto to form the molding compound solution as the sidewall portion 21 of the secondary workpiece 30. Compound injection process (S260) to be introduced into the bottom surface 22 is performed.

Thereafter, a molding process (S270) for forming a lining 50 is performed by molding the molding compound solution injected into the secondary workpiece 30.

Thereafter, the secondary workpiece 30 is introduced into a drying furnace 70 at 230 ° C. and exposed for 1 to 2 minutes to perform a foaming process (S280) for foaming the lining 50.

The lid for the storage container produced by the manufacturing method as described above can prevent the corrosion of the lid due to the contents filled in the storage container and the deterioration of the resulting content in advance.

10: steel sheet 20: primary workpiece
21: side wall portion 22: the bottom surface
30: secondary workpiece 40: rotary tablet
50: lining 60: coating layer
70: drying furnace

Claims (6)

Coating or printing process (S110) for printing a variety of patterns on the outer surface after tin or chrome plating the plate-like steel plate 10, and the basic shape of the lid by cutting (cutting) the steel plate 10 after pressing Blank and drawing process (S120) for molding into a primary workpiece 20 having a and a press-forming process for pressing the primary workpiece 20 to form a secondary workpiece 30 having a curing portion and a lug portion ( S130) and the secondary compound 30 is rotated by using the rotary pellet 40 and at the same time a molding compound solution is added thereto so that the molding compound liquid is a sidewall portion 21 of the secondary workpiece 30. And a compound injection process (S140) to flow into the outside of the bottom surface (22), and a lining molding process (S150) for forming a lining (50) by molding a molding compound liquid injected into the secondary workpiece (30); When the secondary workpiece 30 is rotated again by using the rotary pallet 40 And at the same time in the storage container lid production method for formed, including a coating process (S160) of forming the coating layer 60 to the bottom surface (22) by introducing a coating compound solution therein;
The molding compound liquid and the coating compound liquid are PVC compounds in a liquid state, the viscosity of the molding compound liquid is 10000 to 16000 CPS, and the viscosity of the coating compound liquid is 2500 to 3000 CPS;
The secondary work 30 subjected to the coating process (S160) is added to the drying furnace 70 of 230 ℃ by exposing for 1 to 2 minutes made of a foaming step (S170) for foaming the lining (60) Method for producing a lid for a storage container, characterized in that. delete Coating or printing process (S110) for printing a variety of patterns on the outer surface after tin or chrome plating the plate-like steel plate 10, and the basic shape of the lid by cutting (cutting) the steel plate 10 after pressing Blank and drawing process (S120) for molding into a primary workpiece 20 having a and a press-forming process for pressing the primary workpiece 20 to form a secondary workpiece 30 having a curing portion and a lug portion ( S130 and the coating process for rotating the secondary workpiece 30 by using the rotary tablet 40 and simultaneously adding a coating compound solution therein to form the coating layer 60 on the bottom surface 22 (S240). ), And the coating layer hardening process (S250) of applying heat to the coating layer 60 in a drying furnace 70 to heat-curing the same, and simultaneously rotating the secondary workpiece 30 again using the rotary tablet 40. The molding compound liquid is injected into the molding compound liquid to the secondary workpiece 30. Compound injection process (S260) to flow into the side wall portion 21 and the bottom surface 22 and the lining molding process for forming the lining (50) by molding the molding compound liquid injected into the secondary workpiece 30 In the manufacturing method of the lid for a storage container made of (S270);
The molding compound liquid and the coating compound liquid are PVC compounds in a liquid state, the viscosity of the molding compound liquid is 10000 to 16000 CPS, and the viscosity of the coating compound liquid is 2500 to 3000 CPS;
The second work 30 through the lining molding step (S270) is added to a drying furnace 70 of 230 ℃ to expose for 1 to 2 minutes further includes a foaming step (S280) for foaming the lining (50) Method for producing a lid for a storage container, characterized in that made. delete delete The method according to claim 1 or 3,
The thickness of the coating layer 60 formed through the coating process (S160), (S240) is 0.05 ~ 0.2mm, the rotational speed of the rotary tablet 40 is a storage container lid manufacturing method, characterized in that consisting of 2000 ~ 3000rpm .
KR1020100018844A 2010-03-03 2010-03-03 A cap of the bottle and making method besides KR101151337B1 (en)

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Application Number Priority Date Filing Date Title
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KR101151337B1 true KR101151337B1 (en) 2012-06-08

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101518802B1 (en) * 2013-08-29 2015-05-11 주식회사 새암 Lug Cap could respond in deformation of Lug

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102477950B1 (en) * 2020-11-12 2022-12-14 신명호 Metallic cap and manufacturing method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004359305A (en) 2003-06-05 2004-12-24 Japan Crown Cork Co Ltd Lug cap and method for producing the same
KR100789131B1 (en) 2006-11-13 2007-12-27 박진호 Metallic cap and method for manufacturing metallic cap

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004359305A (en) 2003-06-05 2004-12-24 Japan Crown Cork Co Ltd Lug cap and method for producing the same
KR100789131B1 (en) 2006-11-13 2007-12-27 박진호 Metallic cap and method for manufacturing metallic cap

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101518802B1 (en) * 2013-08-29 2015-05-11 주식회사 새암 Lug Cap could respond in deformation of Lug

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