KR20190118690A - Manufacturing method of SIM tray for portable device - Google Patents

Manufacturing method of SIM tray for portable device Download PDF

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Publication number
KR20190118690A
KR20190118690A KR1020180041534A KR20180041534A KR20190118690A KR 20190118690 A KR20190118690 A KR 20190118690A KR 1020180041534 A KR1020180041534 A KR 1020180041534A KR 20180041534 A KR20180041534 A KR 20180041534A KR 20190118690 A KR20190118690 A KR 20190118690A
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South Korea
Prior art keywords
tray
cover
manufacturing
mobile terminal
sim
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KR1020180041534A
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Korean (ko)
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승일 전
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주식회사 에이치케이티
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Priority to KR1020180041534A priority Critical patent/KR20190118690A/en
Publication of KR20190118690A publication Critical patent/KR20190118690A/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
    • B29C45/14—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
    • 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
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • 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
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • 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
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/0055—Shaping
    • B29C2045/0058—Shaping removing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3431—Telephones, Earphones
    • B29L2031/3437—Cellular phones

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Telephone Set Structure (AREA)

Abstract

The present invention relates to a manufacturing method of an SIM tray for a mobile terminal and, more specifically, to a manufacturing method of an SIM tray for a mobile terminal, wherein the SIM tray is for inserting an SIM card into a mobile terminal, has waterproof function, can reduce manufacturing costs and increases yield and mass productivity. The manufacturing method of the shim tray for the mobile terminal comprises the steps of: manufacturing a cover exposed to the outside of the mobile terminal; inserting the cover into a first injection mold to form a tray main body integrally with the cover; and inserting the tray main body into a secondary injection mold and injecting a thermoplastic resin to form a waterproof seal surrounding the outside of the tray main body.

Description

휴대단말기용 심트레이 제조방법{Manufacturing method of SIM tray for portable device}Manufacturing method of SIM tray for portable terminal {Manufacturing method of SIM tray for portable device}

본 발명은 휴대단말기용 심트레이 제조방법에 관한 것으로, 보다 상세하게는 휴대단말기에 유심 카드를 삽입하기 위한 심트레이로서 방수기능을 가지면서 제조 단가를 낮출 수 있고 수율 및 양산성을 높일 수 있는 휴대단말기용 심트레이 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a sim tray for a mobile terminal, and more particularly, to a portable device capable of lowering the manufacturing cost and increasing yield and mass productivity as a sim tray for inserting a SIM card into a portable terminal. It relates to a method for manufacturing a terminal shim tray.

일반적으로 스마트폰 등과 같은 휴대단말기에는 가입자 식별 정보 등을 포함하는 유심(USIM)이 설치된다. 유심은 사용자 인증과 글로벌 로밍, 전자상거래 등 다양한 기능을 1장의 카드에 구현한 것이다.In general, a mobile terminal such as a smart phone (USIM) including the subscriber identification information is installed. Woosim is implementing various functions such as user authentication, global roaming, and e-commerce on one card.

이러한 유심을 배터리 일체형 스마트폰에 설치하기 위해서는 도 1에 도시된 바와 같이 유심(5)을 트레이(1)에 장착한 후, 트레이(1)를 스마트폰의 슬롯(H)에 삽입하면 된다.In order to install such a core in the battery-integrated smartphone, as shown in FIG. 1, the core 5 is mounted on the tray 1, and then the tray 1 is inserted into the slot H of the smartphone.

트레이(1)는 본체(2)와 커버(3)로 이루어진다. 본체(2)는 유심(5)이 장착되는 부분이고, 커버(3)는 슬롯(H)을 밀폐함으로써 외부의 이물질이 슬롯(H)으로 유입되지 않도록 한다. 그런데 스마트폰의 케이스가 금속으로 이루어지면 커버(3)도 금속으로 만들어져야 하므로 커버(3)는 보통 금속을 CNC가공하여 제작한다. 그리고 커버(3)는 합성수지를 인서트사출하여 커버(3)와 본체(2)를 일체로 제작한다.The tray 1 consists of a main body 2 and a cover 3. The main body 2 is a portion in which the core 5 is mounted, and the cover 3 seals the slot H to prevent foreign substances from entering the slot H. By the way, if the case of the smartphone is made of metal, the cover 3 should also be made of metal, so the cover 3 is usually manufactured by CNC machining of metal. The cover 3 inserts a synthetic resin to manufacture the cover 3 and the main body 2 integrally.

한편, 최근에는 방수기능을 갖춘 휴대단말기가 출시되고 있다. 이러한 휴대단말기의 방수기능을 구현하기 위해서는 상기의 슬론(H)의 완벽한 차단이 필요하다. 이에 따라 도 2에 도시된 바와 같은 방수씰(4121)이 필요하다.Meanwhile, recently, portable terminals having waterproof functions have been released. In order to implement the waterproof function of the portable terminal, it is necessary to completely block the sloane (H). Accordingly, a waterproof seal 4121 as shown in FIG. 2 is required.

이러한 방수씰(4121)은 합성고무 등의 재질로 만들어지기 때문에 본체(2)와 커버(3)를 먼저 인서트사출하여 성형한 후 별도의 사출금형에서 방수씰을 다시 인서트사출해야 한다.Since the waterproof seal 4121 is made of a material such as synthetic rubber, the injection molding of the body 2 and the cover 3 should be performed by inserting the insert into the separate injection mold.

일반적으로 종래에는 액상실리콘 고무(열경화성 고무)를 사출하여 방수씰을 성형한다. 이러한 액상실리콘 고무를 사용한 사출성형을 LSR(Liquid Injection Silicone Rubber)이라 한다. LSR은 액상사출성형용 실리콘 고무를 사출성형기에 연속 공급하여 자동성형함에 따라 생산성의 향상, 노동력의 절감 등 성형품의 cost down을 도모하는 시스템으로서 많이 사용되고 있다.In general, a liquid silicone rubber (thermosetting rubber) is injected to form a waterproof seal. Injection molding using such liquid silicone rubber is referred to as Liquid Injection Silicone Rubber (LSR). LSR is widely used as a system for reducing the cost of molded products, such as productivity improvement and labor saving, by continuously supplying liquid injection molding silicone rubber to an injection molding machine.

LSR은 크게 수평형(유압식, 전동식)과 수직형(전/후 이동방식, 턴 테이블 방식)의 두 가지 방식으로 구분되고, 성형에 적합하게 제작된 금형이 서로 형폐가 된 후 내부에 액상형 재료를 공급하여 사출성형한다.LSR is classified into two types: horizontal type (hydraulic type, electric type) and vertical type (forward / backward movement type, turntable type), and after the molds suitable for molding are closed, Supply and injection molding.

이러한 LSR은 고상형과 동일한 백금경화 방식의 원재료를 사용하므로 높은 무해 성질을 띄고 있음과 동시에 고상형과는 다른 액상형의 물성으로 성형이 용이하며 높은 생산효율과 고품질을 자부하나 사용설비의 기계가격이 비싸고 금형 제작 비용이 매우 높으며 원재료의 단가도 높기 때문에 생산 제품의 단가를 낮추기 위하여 아주 복잡한 구조의 제품이나 제품의 치수편차가 중요한 제품 또는 일정하게 많은 생산수량이 요구된다.Since LSR uses the same platinum hardening type raw materials as the solid type, it exhibits high harmless properties and is easy to form due to the liquid type properties different from the solid type, and has high production efficiency and high quality, but the machine price of the equipment is high. Due to the high cost of the mold and the high cost of raw materials, the high cost of raw materials is required to reduce the cost of the product.

LSR은 제품을 성형하기 위하여 특수한 사출성형 장비가 필요하기 때문에 제조공정 및 생산시설에 추가적인 비용을 야기한다. 액상실리콘 고무는 화려한 물질(flashy material)이기 때문에 일반적인 사출성형과 제조공정이 다르며, 이에 따라 사용되는 공작기계, 공구 및 전환(changeover)도 다르다.LSRs incur additional costs in manufacturing processes and production facilities because they require special injection molding equipment to mold the product. Since liquid silicone rubber is a flashy material, the general injection molding and manufacturing processes are different, and thus the machine tools, tools and changeovers used are different.

액상실리콘 고무의 의가소성(pseudoplastic)및 가파른 솎음 특성(sheer thinning nature)은 0.002in. 가량의 작은 주형 틈으로도 재료가 침투하는 상황을 야기하기 때문에 특수한 사출성형 장비가 필요하다.The pseudoplastic and sheer thinning nature of liquid silicone rubber is 0.002 in. Special injection molding equipment is necessary because it causes the penetration of material into even small mold openings.

이와 같이 LSR 방식은 고가의 특수 생산 장비 및 사출성형 금형을 사용해야 하기 때문에 생산단가가 높은 문제점이 있다. 또한, LSR 방식은 공정 불량 과다로 수율 및 양산성이 떨어지고 성형된 고무 제품이 쉽게 찢어지는 문제점이 있다.As such, the LSR method has a high production cost because it requires the use of expensive special production equipment and injection molding molds. In addition, the LSR method has a problem in that yield and mass productivity are poor due to excessive process defects, and the molded rubber product is easily torn.

대한민국 등록특허공보 제10-1662031호(2016.10.04.)Republic of Korea Patent Publication No. 10-1662031 (2016.10.04.) 대한민국 공개특허공보 제10-2016-0045284호(2016.04.27.)Republic of Korea Patent Publication No. 10-2016-0045284 (2016.04.27.)

본 발명은 전술한 문제점을 해결하기 위한 것으로서, 방수기능을 가지면서 제조 단가를 낮출 수 있고 수율 및 양산성을 높일 수 있는 휴대단말기용 심트레이 제조방법에 관한 것이다.The present invention is to solve the above-described problems, and relates to a method for manufacturing a shim tray for a mobile terminal that can lower the manufacturing cost and increase the yield and mass productivity while having a waterproof function.

상기 목적을 달성하기 위하여 본 발명의 휴대단말기용 심트레이 제조방법은, 휴대단말기의 외부로 노출되는 커버를 제작하는 단계; 상기 커버를 1차 사출금형에 투입하여 상기 커버와 일체로 트레이 본체를 성형하는 단계; 상기 트레이 본체를 2차 사출금형에 투입한 후 열가소성 수지를 주입하여 상기 트레이 본체의 외측을 둘러싸는 방수씰을 성형하는 단계를 포함한다.In order to achieve the above object, the present invention provides a method for manufacturing a shim tray for a mobile terminal, comprising: manufacturing a cover exposed to the outside of the mobile terminal; Inserting the cover into the primary injection mold to form a tray body integrally with the cover; And inserting the tray main body into the secondary injection mold and injecting a thermoplastic resin to form a waterproof seal surrounding the outside of the tray main body.

그리고 상기 트레이 본체는 폴리카보네이트(PC)로 성형하고, 상기 방수씰을 성형하기 위한 열가소성 수지는 열가소성 엘라스토머(thermoplastic elastomer)이다.And the tray body is molded from polycarbonate (PC), the thermoplastic resin for molding the waterproof seal is a thermoplastic elastomer (thermoplastic elastomer).

그리고 상기 커버를 제작한 후, 상기 커버에 복수의 결합홈을 형성하는 단계를 포함하고, 상기 커버는 커버 본체와 상기 커버 본체로부터 돌출되는 결합편으로 이루어지며, 상기 결합홈을 형성하는 단계는 티커터(T-cutter)가 상기 결합편으로 접근하여 상기 결합편에 상기 결합홈을 형성한다.And after the cover is manufactured, forming a plurality of coupling grooves in the cover, wherein the cover is formed of a cover body and a coupling piece protruding from the cover body, and the forming of the coupling groove is formed in a tee. A cutter (T-cutter) approaches the coupling piece to form the coupling groove in the coupling piece.

그리고 상기 결합홈은 상기 결합편의 두께의 1/2보다 깊이 형성되고, 상기 결합편의 양면에 각각 형성되는 복수의 상기 결합홈은 서로 엇갈리도록 형성된다.And the coupling groove is formed deeper than 1/2 of the thickness of the coupling piece, the plurality of coupling grooves respectively formed on both sides of the coupling piece are formed to cross each other.

본 발명의 휴대단말기용 심트레이 제조방법은 열가소성 수지를 사용하여 방수씰을 성형함으로써 일반 사출성형기를 이용한 작업 및 생산의 범용화가 가능하며, 제품의 수율 및 양산성을 높이고 생산 단가를 감소시킬 수 있다.The method for manufacturing a shim tray for a portable terminal of the present invention enables the generalization of work and production using a general injection molding machine by molding a waterproof seal using a thermoplastic resin, and can increase the yield and mass production of products and reduce the production cost. .

도 1은 종래의 스마트폰에 유심 트레이가 장착되는 것을 나타낸 도면.
도 2는 방수씰이 형성되어 있는 종래의 유심 트레이를 나타낸 도면.
도 3은 본 발명의 실시예에 따른 휴대단말기용 심트레이 제조방법을 순서대로 나타낸 도면.
도 4는 본 발명의 실시예에 따른 커버의 사시도.
도 5는 본 발명의 실시예에 따른 티커팅단계를 나타낸 도면.
도 6은 본 발명의 실시예에 따른 커버의 단면도.
도 7은 본 발명의 실시예에 따라 커버와 일체로 성형된 트레이 본체의 사시도.
도 8은 본 발명의 실시예에 따른 휴대단말기용 심트레의 사시도.1 is a view showing that the conventional tray is mounted on a smart phone.
Figure 2 is a view showing a conventional core tray having a watertight seal is formed.
3 is a view showing in sequence the method for manufacturing a shim tray for a mobile terminal according to an embodiment of the present invention.
4 is a perspective view of a cover according to an embodiment of the present invention.
5 is a view showing a ticking step according to an embodiment of the present invention.
6 is a cross-sectional view of a cover according to an embodiment of the present invention.
7 is a perspective view of a tray body integrally formed with a cover according to an embodiment of the present invention.
8 is a perspective view of a shim tray for a mobile terminal according to an embodiment of the present invention.

이하, 첨부된 도면을 참조하여 본 발명을 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail the present invention.

본 발명의 실시예에 따른 휴대단말기용 심트레이 제조방법은 도 3 내지 도 8에 도시된 바와 같이, 커버 제작단계, 티커팅단계. 트레이 본체 성형단계, 방수씰 성형단계로 이루어진다.Method for manufacturing a sim tray for a portable terminal according to an embodiment of the present invention, as shown in Figure 3 to 8, the cover manufacturing step, ticking step. Tray body molding step, waterproof seal molding step.

커버 제작단계는 휴대단말기의 외부로 노출되는 커버(100)를 제작한다. 이러한 커버(100)는 휴대단말기와의 일체감을 주기 위하여 금속재로 이루어진다. 구체적으로 도 4에 도시된 바와 같이, 커버(100)는 커버 본체(110)와 커버 본체(110)로부터 돌출되는 결합편(120)으로 이루어진다. 즉 심트레이가 휴대단말기와 결합되었을 때, 커버 본체(110)는 휴대단말기의 외부로 노출되는 부분이고, 결합편(120)은 휴대단말기의 내부로 삽입되는 트레이 본체(200)가 결합되는 부분이다.The cover manufacturing step manufactures the cover 100 exposed to the outside of the mobile terminal. The cover 100 is made of a metal material to give a sense of unity with the mobile terminal. In detail, as shown in FIG. 4, the cover 100 includes a cover body 110 and a coupling piece 120 protruding from the cover body 110. That is, when the shim tray is coupled with the portable terminal, the cover body 110 is a portion exposed to the outside of the portable terminal, the coupling piece 120 is a portion to which the tray body 200 is inserted into the portable terminal. .

티커팅단계는 커버(100)를 제작한 후 커버(100)에 복수의 결합홈(121)을 형성한다. 구체적으로 도 5에 도시된 바와 같이, 티커팅단계는 회전하는 티커터(T-cutter)(T)가 결합편(120)으로 접근하여 결합편(120)에 복수의 결합홈(121)을 형성한다. 이와 같이 형성된 결합홈(121)은 도 6에 도시된 바와 같이 결합편(120)의 두께의 1/2보다 깊이 형성된다. 그리고 결합편(120)의 양면에 각각 형성되는 복수의 결합홈(121)은 서로 엇갈리도록 형성된다. 즉 결합편(120)의 양면을 제1면과 제2면으로 구분하였을 때 제1면에 형성되는 결합홈(121)과 제2면에 형성되는 결합홈(121)은 서로 엇갈리도록 형성된다.In the ticking step, a plurality of coupling grooves 121 are formed in the cover 100 after the cover 100 is manufactured. Specifically, as shown in FIG. 5, in the ticking step, a rotating T-cutter (T) approaches the coupling piece 120 to form a plurality of coupling grooves 121 in the coupling piece 120. do. The coupling groove 121 formed as described above is formed deeper than 1/2 of the thickness of the coupling piece 120 as shown in FIG. 6. And the plurality of coupling grooves 121 formed on both sides of the coupling piece 120 are formed to cross each other. That is, when both sides of the coupling piece 120 are divided into a first surface and a second surface, the coupling groove 121 formed on the first surface and the coupling groove 121 formed on the second surface are alternately formed.

트레이 본체 성형단계는 도 7에 도시된 바와 같이 커버(100)를 1차 사출금형에 투입하여 커버(100)와 일체로 트레이 본체(200)를 성형한다. 트레이 본체(200)는 심카드가 안착되어 휴대단말기의 내부로 삽입된다. 이때, 트레이 본체(200)는 폴리카보네이트(PC)로 성형하고, 폴리카보네이트 수지가 결합홈(121)으로 유입된 후 경화되어 트레이 본체(200)가 커버(100)와 일체로 형성된다. 이에 따라 금속재로 제작된 커버(100)와 폴리카보네이트로 형성된 트레이 본체(200)의 결합력을 향상시킬 수 있다. 그리고 트레이 본체(200)에는 방수씰(300)을 형성하기 위한 씰홈(210)이 형성된다.In the tray main body forming step, as shown in FIG. 7, the cover 100 is put into the primary injection mold to form the tray main body 200 integrally with the cover 100. The tray main body 200 is inserted into the portable terminal with the SIM card seated. At this time, the tray body 200 is molded into a polycarbonate (PC), the polycarbonate resin is hardened after flowing into the coupling groove 121, the tray body 200 is formed integrally with the cover 100. Accordingly, the bonding force between the cover 100 made of a metal material and the tray body 200 formed of polycarbonate may be improved. The tray main body 200 is provided with a seal groove 210 for forming the waterproof seal 300.

방수씰 성형단계는 도 8에 도시된 바와 같이 커버(100)와 일체로 형성된 트레이 본체(200)를 2차 사출금형에 투입한 후 열가소성 수지를 주입하여 트레이 본체(200)의 외측을 둘러싸는 방수씰(300)을 성형한다. 즉 트레이 본체(200)의 외측을 둘러싸도록 형성되어 있는 씰홈(210)에 방수씰(300)이 형성된다.In the waterproof seal molding step, as shown in FIG. 8, the tray body 200 integrally formed with the cover 100 is injected into the secondary injection mold, and then the thermoplastic resin is injected to surround the outside of the tray body 200. The seal 300 is molded. That is, the waterproof seal 300 is formed in the seal groove 210 formed to surround the outside of the tray body 200.

구체적으로 방수씰(300)을 성형하기 위한 열가소성 수지는 열가소성 엘라스토머(thermoplastic elastomer)이다. 이러한 열가소성 엘라스토머는 성형이 용이하고 제품성형을 위한 사이클 타임이 짧다. 또한, 에너지 소비량이 낮고, 이중 또는 삼중 성형이 가능하므로 조립 비용을 감소시킬 수 있으며, 서로 다른 소재와의 결합이 용이하다.Specifically, the thermoplastic resin for molding the waterproof seal 300 is a thermoplastic elastomer. These thermoplastic elastomers are easy to mold and have short cycle times for product molding. In addition, the energy consumption is low, double or triple molding is possible, thereby reducing assembly costs, and easy to combine with different materials.

상술한 바와 같은 휴대단말기용 심트레이 제조방법은 열가소성 수지인 열가소성 엘라스토머를 사용하여 방수씰(300)을 성형함으로써 일반 사출성형기를 이용한 작업 및 생산의 범용화가 가능하며, 제품의 수율 및 양산성을 높이고 생산 단가를 감소시킬 수 있다.As described above, the method for manufacturing a seam tray for a mobile terminal can be generalized in work and production using a general injection molding machine by molding a waterproof seal 300 using a thermoplastic elastomer, which is a thermoplastic resin, and improves the yield and mass productivity of the product. The production cost can be reduced.

본 발명의 휴대단말기용 심트레이 제조방법을 이용하여 실제 휴대단말기용 심트레이를 제조하였을 때 제품의 수율이 95%까지 상승되었으며 양산성이 높고 단가를 낮출 수 있다.When the manufacture of the sim tray for the portable terminal using the method for manufacturing a portable terminal sim tray of the present invention, the yield of the product was increased to 95%, the mass productivity is high and the unit cost can be lowered.

본 발명에 따른 휴대단말기용 심트레이 제조방법은 전술한 실시예에 국한되지 않고 본 발명의 기술사상이 허용되는 범위 내에서 다양하게 변형하여 실시할 수 있다.The method for manufacturing a shim tray for a portable terminal according to the present invention is not limited to the above-described embodiments, and may be variously modified within the scope of the technical idea of the present invention.

본 발명에 따른 휴대단말기용 심트레이 제조방법은 전술한 실시예에 국한되지 않고 본 발명의 기술사상이 허용되는 범위 내에서 다양하게 변형하여 실시할 수 있다The method for manufacturing a shim tray for a mobile terminal according to the present invention is not limited to the above-described embodiment, and can be carried out in various modifications within the allowable technical spirit of the present invention.

100 : 커버,
110 : 커버 본체,
120 : 결합편,
121 : 결합홈,
200 : 트레이 본체,
210 : 씰홈,
300 : 방수씰,100: cover,
110: cover body,
120: joining piece,
121: coupling groove,
200: tray body,
210: seal groove,
300: waterproof seal,

Claims (4)

휴대단말기에 심카드를 삽입하기 위한 휴대단말기용 심트레이의 제조방법에 있어서,
휴대단말기의 외부로 노출되는 커버를 제작하는 단계;
상기 커버를 1차 사출금형에 투입하여 상기 커버와 일체로 트레이 본체를 성형하는 단계;
상기 트레이 본체를 2차 사출금형에 투입한 후 열가소성 수지를 주입하여 상기 트레이 본체의 외측을 둘러싸는 방수씰을 성형하는 단계를 포함하는 것을 특징으로 하는 휴대단말기용 심트레이 제조방법.In the manufacturing method of the sim tray for a portable terminal for inserting the SIM card in the portable terminal,
Manufacturing a cover exposed to the outside of the mobile terminal;
Inserting the cover into the primary injection mold to form a tray body integrally with the cover;
And inserting the tray main body into the secondary injection mold and injecting a thermoplastic resin to form a waterproof seal surrounding the outside of the tray main body. 청구항 1에 있어서,
상기 트레이 본체는 폴리카보네이트(PC)로 성형하고,
상기 방수씰을 성형하기 위한 열가소성 수지는 열가소성 엘라스토머(thermoplastic elastomer)인 것을 특징으로 하는 휴대단말기용 심트레이 제조방법.The method according to claim 1,
The tray body is molded of polycarbonate (PC),
The thermoplastic resin for forming the waterproof seal is a manufacturing method for a sim tray for a mobile terminal, characterized in that the thermoplastic elastomer (thermoplastic elastomer). 청구항 1에 있어서,
상기 커버를 제작한 후,
상기 커버에 복수의 결합홈을 형성하는 단계를 포함하고,
상기 커버는 커버 본체와 상기 커버 본체로부터 돌출되는 결합편으로 이루어지며,
상기 결합홈을 형성하는 단계는 티커터(T-cutter)가 상기 결합편으로 접근하여 상기 결합편에 상기 결합홈을 형성하는 것을 특징으로 하는 휴대단말기용 심트레이 제조방법.The method according to claim 1,
After making the cover,
Forming a plurality of coupling grooves in the cover;
The cover is made of a cover body and a coupling piece protruding from the cover body,
Forming the coupling groove is a t-cutter (T-cutter) approaching the coupling piece characterized in that for forming the coupling groove in the coupling piece characterized in that for the portable terminal sim tray. 청구항 3에 있어서,
상기 결합홈은 상기 결합편의 두께의 1/2보다 깊이 형성되고,
상기 결합편의 양면에 각각 형성되는 복수의 상기 결합홈은 서로 엇갈리도록 형성되는 것을 특징으로 하는 휴대단말기용 심트레이 제조방법.The method according to claim 3,
The coupling groove is formed deeper than 1/2 of the thickness of the coupling piece,
The plurality of coupling grooves respectively formed on both sides of the coupling piece are formed so as to cross each other for simplicity for a portable terminal manufacturing method.
KR1020180041534A 2018-04-10 2018-04-10 Manufacturing method of SIM tray for portable device KR20190118690A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160045284A (en) 2014-10-17 2016-04-27 삼성전자주식회사 Tray, jig for separating tray and electronic device therof
KR101662031B1 (en) 2016-08-10 2016-10-04 주식회사 더원테크 Manufacturing methods for USIM tray used in mobile telecommunication terminal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20160045284A (en) 2014-10-17 2016-04-27 삼성전자주식회사 Tray, jig for separating tray and electronic device therof
KR101662031B1 (en) 2016-08-10 2016-10-04 주식회사 더원테크 Manufacturing methods for USIM tray used in mobile telecommunication terminal

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