KR20170022546A - Double injection mold and method for products inserted electro luminescence film - Google Patents

Double injection mold and method for products inserted electro luminescence film Download PDF

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Publication number
KR20170022546A
KR20170022546A KR1020150117668A KR20150117668A KR20170022546A KR 20170022546 A KR20170022546 A KR 20170022546A KR 1020150117668 A KR1020150117668 A KR 1020150117668A KR 20150117668 A KR20150117668 A KR 20150117668A KR 20170022546 A KR20170022546 A KR 20170022546A
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KR
South Korea
Prior art keywords
film
injection molding
mold
movable plate
double injection
Prior art date
Application number
KR1020150117668A
Other languages
Korean (ko)
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KR101751244B1 (en
Inventor
김유용
김성화
Original Assignee
엠티코리아 주식회사
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Priority to KR1020150117668A priority Critical patent/KR101751244B1/en
Publication of KR20170022546A publication Critical patent/KR20170022546A/en
Application granted granted Critical
Publication of KR101751244B1 publication Critical patent/KR101751244B1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2602—Mould construction elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14065—Positioning or centering articles in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14336—Coating a portion of the article, e.g. the edge of the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2608—Mould seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/34—Moulds having venting means

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to a double injection mold for products inserted with an electro luminescence (EL) film (30), and a molding method thereof. When an injection article (300) having an EL film is being manufactured, the EL film is doubly injected to be inserted into the center of the injection article (300) so damage of the EL film is prevented. The EL film is formed in a mounting unit (211) of a movable plate (200) for sealing and vacuum adsorption so the EL film is fixed in the set position in the injection article (300).

Description

Technical Field [0001] The present invention relates to a double injection mold and a molding method for an EL film insertion product,

The present invention relates to a dual injection mold and a molding method for an EL film insertion product, and more particularly, to a dual injection molding method and an injection molding method for an EL film insertion product, To an apparatus and a method by which an ELF film can be fixed in a predetermined position in a product by sealing and vacuum-adsorbing the ELF with the ELF at the seat of the movable mold.

And a variety of lights including an EL (electro luminescence) film that can generate various aesthetic effects without requiring a separate light bulb, which invites a new aesthetic feeling.

This is applied to various ornaments recently, and in the case of automobiles, it is applied to a rear garnish, an integrated tail lamp or a turn signal lamp.

A method of manufacturing a product provided with such an EL film includes a method of inserting a film into an outer surface of the film during injection molding and molding the film.

As an example thereof, a decorative film 2 and an EL element (not shown) are formed in a cavity of an injection molding die 1 as in Korean Patent Laid-Open No. 2003-0033937 (" 3 is integrally formed on the back surface side of the EL element 3 and injection molding resin is injected into the cavity on the back side of the EL element 3 to produce an EL insert molded article.

Such a prior art document has a problem in that the EL light-emitting insert product has an EL film adhered to the outside, which is liable to be torn off or displaced due to contact with the outside or friction, resulting in poor durability.

Korean Patent Publication No. 2003-0033937 (published on May 01, 2003)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and it is an object of the present invention to provide a method and apparatus for preventing the damage of an ELF film, (EL film) insertion product in which an ELF film can be fixed at a predetermined position in an article by sealing and vacuum-adsorbing the ELF film on a seat portion of the movable die plate.

A dual injection mold and a molding method for an EL film insertion product according to an embodiment of the present invention includes a fixed plate 100 having a plurality of depressions 10 on the other side of a polyhedron; And a movable plate 200 having a plurality of protruded cores 20 corresponding to the depressions 10 on one side of the polyhedron facing the fixed plate 100.

The movable plate 200 includes a seating part 211 on which the EL film 30 is placed and which is recessed by an area and thickness of the EL film 30 on one side of the movable plate 200, A first core 210 on which an intermediate surface of the first core 300 is formed; And a second core 220 spaced apart in parallel with the first core 210 and having the other side of the article 300 formed thereon.

The fixed plate 100 includes a first depression 110, which is recessed by the height of the first core 210, on the other side of the fixed plate 100; And a second depression 120 spaced apart in parallel with the first depression 110 and recessed at a predetermined depth to form one side of the article 300.

One surface of the seating part 211 is provided with a groove 212 at a rim and a sealing member 212a.

A plurality of through holes (213) through which air can be sucked are formed on one surface of the seating part (211).

In addition, the dual injection molding method for inserting the EL film 30 includes the steps of inserting an EL film 30 into the movable plate 200; A first injection molding on one side of the EL film (30); And second injection molding the other side of the EL film (30).

In addition, the double injection molding method for inserting the EL film 30 may further include extracting the article 300 from the mold 1000.

In addition, the double injection molding method for inserting the EL film 30 may include rotating or sliding the movable plate 200 before the primary injection molding and the secondary injection molding, (120) for performing primary injection and secondary injection.

The dual injection molding method for inserting the EL film 30 is characterized in that the EL film 30 is subjected to vacuum adsorption and sealing so as to be fixed to the movable mold plate 200. [

According to the present invention, there is provided a double injection mold and a molding method for an EL film insertion product according to the present invention, in which when an article with an EL film is manufactured, the EL film is inserted into the middle of the article, And the EL film is fixed to a predetermined position in the article by sealing the article with a gel film and vacuum adsorbing the gel film.

1 is a cross-sectional view of an example of manufacturing an EL insert molding according to an embodiment of the present invention.
2 is a perspective view of a dual injection mold for an EL film insert according to one embodiment of the present invention.
Figure 3 is a front view of a dual injection mold for an EL film insert according to one embodiment of the present invention;
4 is a perspective view of a movable mold of a dual injection mold for an EL film insert product according to an embodiment of the present invention.
5 is a sectional view of an EL film insert according to an embodiment of the present invention.
FIG. 6 is an illustration of a first step of an EL film double injection molding method according to an embodiment of the present invention; FIG.
FIG. 7 is a second exemplary step of an EL film dual injection molding method according to an embodiment of the present invention; FIG.
FIG. 8 is an illustration of a third step of an EL film double injection molding method according to an embodiment of the present invention; FIG.
FIG. 9 is an exemplary diagram of a fourth step of an EL film double injection molding method according to an embodiment of the present invention; FIG.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a dual injection mold 1000 and a molding method for an EL film 30 insertion product according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The following drawings are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following drawings, but may be embodied in other forms. In addition, like reference numerals designate like elements throughout the specification.

In this case, unless otherwise defined, technical terms and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In the following description and the accompanying drawings, A description of known functions and configurations that may unnecessarily obscure the description of the present invention will be omitted.

Figure 2 is a perspective view of a dual injection mold for an EL film (30) insert according to one embodiment of the present invention.

Referring to FIG. 2, a fixed plate 100 having a plurality of depressions 10 on the other side of a polyhedron; And a movable plate 200 having a plurality of cores 20 protruded to correspond to the depressions 10 on one side of the polyhedron facing the fixed plate 100.

A double injection mold for an EL film 30 insertion product according to an embodiment of the present invention can be applied to a double injector which facilitates double injection molding.

The double injector is a device that fixes the fixed plate 100 on one side and can rotate or slide while clamping the movable plate 200 on the other side.

Since this is a known device, detailed description and drawings can be omitted.

The stationary plate 100 and the movable plate 200 may have a depression 10 formed on a surface of the stationary plate 100 and a surface of the movable plate 200 facing each other. A protrusion can be formed. At this time, the depressed portion 10 and the protruding portion are each formed in two places, and the movable plate 200 is rotated 180 degrees so that it can be double injected as it is injected twice into one depression portion 10 .

FIG. 3 is a front view of a double injection mold for an EL film 30 insertion product according to an embodiment of the present invention. FIG. 4 is a front view of an EL film 30 insertion product according to an embodiment of the present invention. FIG. 2 is a perspective view of the movable mold plate 200 of the double injection mold.

3 and 4, the movable plate 200 includes a seating part 211, which is recessed by an area and thickness of the EL film 30 at one side of the movable plate 200, A first core 210 on which an intermediate surface of the article 300 is formed; And a second core 220 disposed in parallel to the first core 210 and having the other side of the projected part 300 formed thereon.

The shapes of the first core 210 and the second core 220 may be variously changed according to the shape of the product to be manufactured.

5 is a cross-sectional view of an insertion product 300 of an EL film 30 according to an embodiment of the present invention.

Referring to FIG. 5, an EL (electro luminescence) film may be inserted on the intermediate surface of the article 300 according to an embodiment of the present invention.

Here, the EL film 30 brings about a new aesthetic feeling, and is also semi-permanent in the lifetime of the light emitting body. In addition, the article (300) is inserted into the EL film (30) by double injection molding, so that various lighting effects can be obtained without requiring a separate bulb.

In addition, the EL film 30 is an electroluminescent film and is in the form of a thin plate and is flexible.

In addition, the EL film 30 is seated on the seating part 211, thereby preventing the EL film 30 from being disturbed or tilted in one direction during double ejection.

Referring to FIG. 3, the fixed plate 100 includes a first depression 110, which is recessed by the height of the first core 210, on the other side of the fixed plate 100; And a second depression 120 spaced apart from and parallel to the first depression 110 and recessed at a predetermined depth to form one side of the article 300.

The inner surface of the first depression 110 is in contact with one surface of the first core 210 when the mold is assembled or closed so that the EL film 30 is placed on the seating portion 211 It can act to apply pressure so that it is evenly seated.

In addition, the inner surface of the second depression 120 may be formed as one side of the article 300 during the first injection.

A runner may be formed at one side of the fixed plate 100 through a through hole 213 to the other side of the fixed plate 100 and connected to the double injector at one side thereof to allow the material of the article 300 to be introduced .

Referring to FIGS. 2 and 3, since the embodiment of the present invention is a dual injection, the first and second runners 130 and 140 may be installed in the fixed plate 100, As shown in FIG.

The first and second runners 130 and 140 require a gate and a first gate 131 connected to the first runner 130 is formed on the fixed plate 100, A second gate 141 connected to the second runner 140 may be formed in the movable plate 200.

In addition, the first injection is injected through the first runner 130, and the material may not flow into the second runner 140 at this time.

In contrast, the second injection is injected through the second runner 140, at which time the material may not flow into the first runner 130.

In addition, the first gate 131 may be formed as a side gate, and the second gate 141 may be formed as a submarine gate or a tunnel gate.

At this time, the first gate and the second gate according to an embodiment of the present invention are not limited and may be variously implemented.

Referring to FIG. 4, one side of the seating part 211 may be provided with a sealing member 212a with a groove 212 formed at its rim.

In addition, a plurality of through holes 213 through which the air can be sucked may be formed on one side of the seating part 211.

The EL film 30 may be insufficient to prevent the EL film 30 from being disturbed by injection only by the seat portion 211 and may require a sealing treatment and a vacuum adsorption treatment.

Accordingly, the sealing member 212a may be formed of various members such as an O-ring, and may be fitted into the groove 212 to be in close contact with the other side surface of the EL film 30 Can reach.

The through hole 213 may be formed on the inner surface of the seating part 211 and penetrate to the other side of the movable plate 200.

The through hole 213 may be connected to an air suction unit provided on the other side of the movable plate 200 to allow the EL film 30 to be adsorbed .

The air inhaler may be variously configured as an inhalable device by various means such as pneumatic pressure and hydraulic pressure, and a detailed description thereof may be omitted by a known technique.

FIG. 6 is a view illustrating a first step of an EL film double injection molding method according to an embodiment of the present invention.

FIG. 7 is a view illustrating a second step of an EL film double injection molding method according to an embodiment of the present invention.

FIG. 8 is a view illustrating a third step of an EL film double injection molding method according to an embodiment of the present invention.

FIG. 9 is an exemplary view illustrating a fourth step of an EL film double injection molding method according to an embodiment of the present invention.

6, there is shown a dual injection molding method for inserting an EL film 30 using a dual injection mold for an EL film 30 insertion product. First, the EL film 30 is inserted into the EL film 30, The double injection molding method for insertion may be a step of inserting the EL film 30 into the movable plate 200.

In detail, the EL film 30 may be seated on the seating part 211 and vacuum-absorbed through the through-hole 213.

In addition, the EL film 30 can be prevented from being pushed until the first injection is completed through the sealing member 212a.

Also, the EL film 30 may be pressed against the first depression 110 while the mold 1000 is being closed.

The movable plate 200 is rotated by 180 degrees so that the first depression 110 faces the second core 220 while the second depression 120 is parallel to the first core 210, As shown in FIG.

Referring to FIG. 7, secondly, the EL film 30 may be subjected to primary injection molding on one side thereof.

In detail, the mold 1000 is closed, and the material is first injected through the first runner 130 and the first gate 131, flows into the inner surface of the second depression 120, One side and an intermediate side of the entry 300 may be formed.

Also, after the first injection is completed, the mold is opened and rotated 180 degrees again so that the second depression 120 and the second core 220 can be arranged to face each other.

Referring to FIG. 8, the third step may be a step of secondary injection molding on one side of the EL film 30.

More specifically, the mold 1000 is mold-closed and flows into one side of the second core 220 while the workpiece is secondarily injected through the second runner 140 and the second gate 141, The intermediate surface and the other surface of the substrate 300 may be formed.

Referring to FIG. 9, the fourth step may include extracting the article 300 from the mold 1000.

The mold 1000 can be taken out by various means such as an ejector pin (not shown) provided in the movable plate 200 and the like to take out the article 300.

More specifically, the present invention relates to a dual injection mold and a molding method for an EL film (30) insertion product, and more particularly to a dual injection mold for molding an injection film (300) The EL film is prevented from being damaged by being injected by being injected into the middle part 300 of the movable mold 200 by sealing and vacuum suctioning the EL film with the EL film in the seat part 211 of the movable mold 200, There is an effect that it can be fixed to the position.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains.

Therefore, it is to be understood that the subject matter of the present invention is not limited to the disclosed embodiments, and all of the equivalents or equivalents of the claims are covered by the scope of the present invention will be.

10: depression 20: core
30: EL film
100: fixed plate 200: movable plate
300: article of manufacture 110: first depression
120: second depression 130: first runner
140: second runner 131: first gate
141: second gate 210: first core
220: second core 211: seat part
212: groove 212a: sealing member
213: Through hole

Claims (9)

A fixed plate (100) having a plurality of depressions (10) on the other side of the polyhedron; And
And a movable plate 200 having a plurality of cores 20 protruded to correspond to the depressions 10 on one side of the polyhedron facing the fixed plate 100. [ (30) Double injection mold for insertion product.
The apparatus according to claim 1, wherein the movable plate (200)
An EL film 30 is placed on one side of the movable plate 200 by an area and a thickness of the EL film 30 to form a receiving part 211, A first core 210 on which an intermediate surface of the first core 210 is formed; And
And a second core (220) spaced apart from and parallel to the first core (210) and having the other side of the article (300) formed thereon Double injection mold for.
3. The apparatus of claim 2, wherein the fixed plate (100)
A first depression (110) recessed by the height of the first core (210) on the other side of the fixed plate (100); And
And a second depression (120) spaced apart in parallel with the first depression (110) and recessed at a predetermined depth to form one side of the article (300) EL) film (30) Double injection mold for injection product.
3. The apparatus according to claim 2, wherein one surface of the seat portion (211)
A dual injection mold for an EL film (30) insert product, characterized in that a groove (212) is formed in a rim and a sealing member (212a) is provided.
3. The apparatus according to claim 2, wherein one surface of the seat portion (211)
And a plurality of through holes (213) through which air can be sucked are formed.
A dual injection molding method for inserting an EL film (30) using a double injection mold for an EL film (30) insertion product according to claim 1,
The double injection molding method for inserting the EL film (30)
Inserting an EL film (30) into the movable plate (200);
A first injection molding on one side of the EL film (30); And
And performing secondary injection molding on the other side of the EL film (30). ≪ RTI ID = 0.0 > 11. < / RTI >
The method according to claim 6, wherein the double injection molding method for inserting the EL film (30)
(300) from the mold (1000). The method according to any one of the preceding claims, further comprising the step of removing the injection product (300) from the mold (1000).
The method according to claim 6, wherein the double injection molding method for inserting the EL film (30)
Characterized in that the movable plate (200) is rotated or slid before the primary injection molding and the secondary injection molding step to perform the primary injection and the secondary injection in the specific depression (120) of the fixed plate (100) A double injection molding method for inserting an EL film (30).
The method according to claim 6, wherein the double injection molding method for inserting the EL film (30)
Wherein the EL film (30) is vacuum-adsorbed and sealed so as to be fixed to the movable plate (200).
KR1020150117668A 2015-08-21 2015-08-21 Double injection mold and method for products inserted electro luminescence film KR101751244B1 (en)

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KR1020150117668A KR101751244B1 (en) 2015-08-21 2015-08-21 Double injection mold and method for products inserted electro luminescence film

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Application Number Priority Date Filing Date Title
KR1020150117668A KR101751244B1 (en) 2015-08-21 2015-08-21 Double injection mold and method for products inserted electro luminescence film

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KR101751244B1 KR101751244B1 (en) 2017-06-28

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030033937A (en) 2001-10-22 2003-05-01 세이코 프리씨존 인크. Manufacturing method of el insert molding

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003086354A (en) 2001-09-11 2003-03-20 Seiko Precision Inc Insert mold el
TW200927431A (en) 2007-09-12 2009-07-01 Nissha Printing A double-molded insert molding product and an electronic device using the double-molded insert molding product
JP2012071519A (en) * 2010-09-29 2012-04-12 Nissha Printing Co Ltd Resin molding, and die for manufacturing resin molding
JP5899486B2 (en) * 2013-02-22 2016-04-06 パナソニックＩｐマネジメント株式会社 In-mold decorative molding method and in-mold decorative molding apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030033937A (en) 2001-10-22 2003-05-01 세이코 프리씨존 인크. Manufacturing method of el insert molding

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