KR100666785B1 - Method for manufacturing filler trim of vihicle - Google Patents

Method for manufacturing filler trim of vihicle Download PDF

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Publication number
KR100666785B1
KR100666785B1 KR1020050068827A KR20050068827A KR100666785B1 KR 100666785 B1 KR100666785 B1 KR 100666785B1 KR 1020050068827 A KR1020050068827 A KR 1020050068827A KR 20050068827 A KR20050068827 A KR 20050068827A KR 100666785 B1 KR100666785 B1 KR 100666785B1
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South Korea
Prior art keywords
mold
skin material
injection
filler trim
sheet
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KR1020050068827A
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Korean (ko)
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이원종
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기아자동차주식회사
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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
    • B29C45/1418—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 the inserts being deformed or preformed, e.g. by the injection pressure
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/56—Compression moulding under special conditions, e.g. vacuum
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/56—Compression moulding under special conditions, e.g. vacuum
    • B29C2043/561—Compression moulding under special conditions, e.g. vacuum under vacuum conditions

Abstract

A method for manufacturing a pillar trim of a vehicle is provided to prevent the pillar trim from being wrinkled, and avoid use of an adhesive. A method comprises a first step of obtaining a sheet(10) constituted by an outer coating and a PP foam sheet through vacuum molding; and a second step of injection molding a substrate onto the PP foam sheet of the sheet. The second step includes a sub-step of loading the vacuum molded sheet into a movable frame(60) of an injection mold; a sub-step of clamping the movable frame of the injection mold to a fixed frame(70); a sub-step of injection molding the substrate integrally onto the sheet, by supplying plastic injection liquid into a cavity formed between the PP foam sheet and the fixed frame; and a sub-step of removing the movable frame from the fixed frame, and releasing a pillar trim product(30) where the sheet and the substrate are integrally injection molded. The movable frame of the mold is slightly opened by 2mm, so that the PP foam sheet of the sheet returns to its original thickness.

Description

자동차용 필러트림 제조 방법{Method for manufacturing filler trim of vihicle}Method for manufacturing filler trim of vihicle}

도 1은 본 발명에 따른 자동차용 필러트림 제조 방법을 순서대로 나타내는 개략도,1 is a schematic view showing in sequence a method for manufacturing a filler trim for an automobile according to the present invention;

도 2는 본 발명에 따른 자동차용 필러트림의 제조 방법에 의하여 제조된 필러트림의 외관을 보여주는 사진,Figure 2 is a photograph showing the appearance of the filler trim manufactured by the method for manufacturing a filler trim for an automobile according to the present invention,

도 3은 본 발명에 따른 자동차용 필러트림의 제조 방법에 의하여 제조하되, 표피재를 진공성형하지 않고 동시사출하여 제작된 필러트림의 외관을 보여주는 사진,Figure 3 is produced by the method of manufacturing a filler trim for an automobile according to the present invention, a photograph showing the appearance of the filler trim produced by simultaneously injecting the outer skin material without vacuum molding,

도 4는 통상의 필러트림의 단면 구조를 설명하는 개략도.4 is a schematic diagram illustrating a cross-sectional structure of a conventional filler trim.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 표피재 12 : 외피10: skin material 12: skin

14 : PP 폼시트 20 : 기재14: PP foam sheet 20: base material

30 : 필러트림 40 : 상형30: Filler trim 40: Pictograph

50 : 하형 60 : 가동틀50: lower mold 60: movable frame

70 : 고정틀70: fixing frame

본 발명은 자동차용 필러트림 제조 방법에 관한 것으로서, 더욱 상세하게는 딥 드로잉(Deep drawing) 형상을 갖는 필러트림을 제작함에 있어서, 표피재를 접착제로 기재에 부착할 때 주름 현상이 발생되던 기존의 문제점을 해결하기 위하여 1차로 표피재를 진공성형하고, 2차로 진공성형된 표피재에 기재를 동시사출함으로써, 주름이 전혀 없는 개끗한 표면의 필러트림을 제공할 수 있고, 기존의 접착제 도포공정을 배제하여 작업성을 향상시킬 수 있도록 한 자동차용 필러트림 제조 방법에 관한 것이다.The present invention relates to a method for manufacturing a filler trim for automobiles, and more particularly, to fabricate a filler trim having a deep drawing shape, in which a wrinkle phenomenon occurs when the skin material is attached to a substrate with an adhesive. In order to solve the problem, by first vacuum-forming the skin material and simultaneously spraying the substrate on the second vacuum-formed skin material, it is possible to provide a filler trim on a clean surface without wrinkles, and to use the conventional adhesive coating process. The present invention relates to a method for manufacturing a filler trim for automobiles, wherein the workability can be improved.

통상적으로 자동차용 필러트림은 실내 표면을 구성하는 내장재로서, 전면글래스와 앞도어 사이에 장착되는 프론트 필러와, 앞도어와 뒷도어 사이에 장착되는 센터필러와, 뒷도어와 리어글래스 사이에 장착되는 리어필러 등으로 구분되고 있다.In general, an automobile pillar trim is an interior material constituting an interior surface, and includes a front pillar mounted between a front glass and a front door, a center pillar mounted between a front door and a rear door, and a rear pillar mounted between a rear door and a rear glass. It is divided into rear pillars.

첨부한 도 4는 통상의 필러트림의 단면 구조를 설명하는 개략도이다.4 is a schematic view for explaining the cross-sectional structure of a conventional filler trim.

도 4에서 보듯이, 상기 필러트림(30)은 표피재(10)와 기재(20)가 서로 접착된 구조로 제작되는 바, 표피재(10)는 두께가 0.5∼0.6mm로서 실내표면을 이루는 외피(12)와, 이 외피(12)의 이면에 일체로 형성되는 탄성재질로서 발포배율이 15∼20배이며 두께가 1.5mm 이상인 PP 폼시트(14: foam sheet)으로 구성되고, 상기 기재(20)는 고유동성 PP계 수지이며 용융수지가 30g/min 이상인 플라스틱이 사용되고 있다.As shown in Figure 4, the filler trim 30 is made of a structure in which the skin material 10 and the base material 20 are bonded to each other, the skin material 10 is 0.5 ~ 0.6mm thickness to form the interior surface An elastic material integrally formed on the outer surface of the outer shell 12 and the outer shell 12, and has a foam ratio of 15 to 20 times and a PP foam sheet 14 having a thickness of 1.5 mm or more. 20) is a highly flexible PP resin, and a plastic having a molten resin of 30 g / min or more is used.

기존의 필러트림 제조에 있어서, 상기 표피재와 기재를 별도로 제작한 다음, 접착제를 기재에 도포하여 상기 표피재를 부착하는 방법이 사용되고 있다.In the conventional filler trim production, a method of attaching the skin material by preparing the skin material and the substrate separately and then applying an adhesive to the substrate is used.

이러한 기존의 표피재와 기재간의 접착제를 이용한 접착 방법은 다음과 같은 문제점이 있다.The conventional adhesive method using the adhesive between the skin and the substrate has the following problems.

대개, 필러트림(특히, 센터필러 및 리어필러)는 시트벨트 인출구 및 시트벨트 높이조절장치 등이 부가되는 부분으로서, 그 형상이 높고 낮음이 심한 즉, 딥 드로잉(deep drawing) 형상을 갖기 때문에 표피재를 기재에 접착제로 부착할 때 주름이 발생하는 문제점이 있다.Usually, the filler trim (particularly the center pillar and the rear pillar) is a part to which a seat belt outlet and a seat belt height adjusting device are added, and the epidermis has a high and low shape, that is, a deep drawing shape. There is a problem that wrinkles occur when the ash is attached to the substrate with an adhesive.

표피재에 주름이 발생되는 현상을 숙련된 작업으로 최대한 억제시킬 수 있지만, 그럼에도 불구하고 접착제(본드) 사용으로 냄새가 과다하게 발생하여 작업성 및 작업환경을 떨어뜨리는 단점이 있고, 형상이 복잡한 곡면일 경우 표피재와 기재간에 박리현상이 발생하는 문제점이 있었다.Wrinkles on the skin can be suppressed by skilled work as much as possible, but nevertheless, the use of adhesives (bonds) causes excessive odors, degrading workability and working environment. In one case, there was a problem that peeling phenomenon occurred between the skin and the substrate.

이러한 점을 감안하여, 필러트림 성형 직후, 금형안의 잠열을 이용하여 표피재를 기재에 부착시키는 HIC공법이 실시되었는 바, 이 또한 금형 구조가 복잡하기 때문에 표피재를 용이하게 부착시키기 어렵고 딥 드로잉 부위에 해당하는 표면에 주름이 발생하는 문제점이 있었다.In view of this, the HIC method of attaching the skin material to the substrate using latent heat in the mold was carried out immediately after the filler trim molding, and since the mold structure is complicated, it is difficult to easily attach the skin material to the deep drawing site. There was a problem that wrinkles occurred on the surface corresponding to.

본 발명은 상기와 같은 점을 감안하여 안출한 것으로서, 필러트림을 구성하 는 표피재를 기재에 접착제 도포 방식으로 접착하는 기존의 방식을 배제하고, 1차로 표피재를 진공 성형하고, 2차로 진공성형된 표피재에 기재를 동시 사출함으로써, 주름이 전혀 없는 깨끗한 표면의 필러트림을 제공할 수 있고, 기존의 접착제 도포공정을 배제하여 작업성을 향상시킬 수 있도록 한 자동차용 필러트림 제조 방법을 제공하는데 그 목적이 있다.The present invention has been devised in view of the above-mentioned point, and excludes the existing method of adhering the skin material constituting the filler trim to the base material by an adhesive coating method, vacuum forming the skin material firstly, and vacuuming secondly. By simultaneously injecting the base material into the molded skin material, it is possible to provide a filler trim of a clean surface without wrinkles at all, and to provide an automobile filler trim manufacturing method that can improve workability by excluding a conventional adhesive coating process. Its purpose is to.

상기한 목적을 달성하기 위한 본 발명은 외피와 PP폼 시트로 이루어진 표피재를 1차공정으로서 진공 성형하는 공정과, 진공 형성된 표피재에 기재를 2차공정으로서 동시 사출하는 공정으로 이루어지는 자동차용 필러트림 제조 방법을 제공한다.The present invention for achieving the above object is a vehicle filler comprising a step of vacuum molding the skin material consisting of the outer skin and PP foam sheet as a first step, and the step of simultaneously injecting the substrate as a secondary process to the vacuum formed skin material Provided are trim manufacturing methods.

바람직한 구현예로서, 상기 1차의 진공성형 공정은 외피와 PP 폼시트로 이루어진 표피재를 예열시키는 단계와, 필러트림 제조용 몰드의 상형을 하향으로부터 개방하여, 상기 표피재를 안착시키는 단계와, 상기 몰드의 상형 및 하형을 클램핑시킨 다음, 몰드 캐비티에 진공을 제공하는 단계와, 진공 성형되어 표면이 매끄럽게 된 상기 표피재를 상기 몰드로부터 탈형시키는 단계로 진행된다.In a preferred embodiment, the primary vacuum forming process includes the steps of preheating the skin material consisting of the outer skin and the PP foam sheet, opening the upper mold of the filler trim manufacturing mold from below, and seating the skin material; After clamping the upper and lower molds of the mold, a vacuum is provided to the mold cavity, and the skin material which is vacuum molded to smooth the surface is demolded from the mold.

바람직한 구현예로서, 상기 2차의 동시사출 공정은 진공 성형된 표피재를 사출용 몰드의 가동틀에 안착시키는 단계와, 상기 사출용 몰드의 가동틀을 고정틀에 클램핑시키는 단계와, 상기 표피재의 PP폼시트와 상기 고정틀 사이에 형성된 기재 사출용 캐비티에 고유동성 PP계 수지인 플라스틱 사출액을 공급함으로써, 표피재와 기재가 일체로 사출 성형되는 단계와, 상기 몰드의 가동틀을 고정틀로부터 탈거한 다음, 표피재와 기재가 일체로 사출된 필러트림 제품을 탈형하는 단계로 이루어지는 2차 동시사출 공정으로 진행된다.In a preferred embodiment, the second co-injection process comprises the steps of seating the vacuum-formed skin material on the movable mold of the injection mold, clamping the movable mold of the injection mold on the fixed mold, and PP of the skin material. By supplying a plastic injection liquid, which is a highly flexible PP resin, to the substrate injection cavity formed between the foam sheet and the fixing frame, the skin material and the substrate are integrally injection molded, and the movable frame of the mold is removed from the fixing frame. And, the skin material and the base material proceeds to the second simultaneous injection process comprising the step of demolding the filler trim product injected integrally.

더욱 바람직한 구현예로서, 상기 표피재와 기재가 일체로 사출 성형되는 단계후, 몰드의 가동틀을 2mm 정도 미소형개시켜서 상기 표피재를 구성하고 있는 PP폼 시트가 본래의 두께로 복원되도록 한 단계가 더 진행된다.In a more preferred embodiment, after the step of integrally injection molding the skin material and the substrate, the step of making the PP foam sheet constituting the skin material is restored to its original thickness by micro-opening the mold of the mold by about 2 mm. It goes further.

이하, 본 발명의 바람직한 실시예를 첨부도면을 참조로 상세하게 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

전술한 바와 같이, 필러트림(30)의 구성중 표피재(10)는 두께가 0.5∼0.6mm로서 실내표면을 이루는 외피(12)와; 이 외피(12)의 이면에 일체로 형성되는 탄성재질로서 발포배율이 15∼20배이며, 두께가 1.5mm 이상인 PP 폼시트(14: foam sheet)으로 구성되고, 상기 표피재(10)와 접착되는 기재(20)는 고유동성 PP계 수지이며 용융수지가 30g/min 이상인 플라스틱이 사용되고 있다.As described above, the skin material 10 of the pillar trim 30 has a thickness of 0.5 to 0.6 mm to form an interior surface 12; An elastic material integrally formed on the back surface of the outer shell 12, and has a foam ratio of 15 to 20 times, and is made of a PP foam sheet 14 having a thickness of 1.5 mm or more, and is bonded to the skin material 10. Substrate 20 to be used is a highly flexible PP-based resin, a plastic having a molten resin of 30g / min or more.

기존에는 기재에 접착제(본드)를 도포한 다음, 그 표면에 표피재를 접착하는 방식을 채택하였는 바, 본 발명은 접착제 도포 방식을 배제하고 진공성형 및 동시사출 방식을 채택한 것이다.Conventionally, after applying an adhesive (bond) to the substrate, and then adopting a method of adhering the skin material on the surface, the present invention is to exclude the adhesive coating method and to adopt a vacuum molding and co-injection method.

여기서 본 발명의 필러트림 제조 방법을 상세하게 설명하면 다음과 같다.Here, the filler trim manufacturing method of the present invention will be described in detail.

첨부한 도 1은 본 발명에 따른 자동차용 필러트림 제조 방법을 순서대로 나타내는 개략도이다.1 is a schematic view showing in sequence a method for manufacturing a filler trim for automobiles according to the present invention.

본 발명의 필러트림 제조 방법은 외피(10)와 PP 폼시트(14)을 이루어진 표피 재(10)를 진공 성형하는 1차 공정과, 진공 형성된 표피재(10)에 기재(20)를 동시 사출하는 2차 공정으로 이루어진다.The filler trim manufacturing method of the present invention is a primary process of vacuum forming the skin material 10 consisting of the outer skin 10 and the PP foam sheet 14, and simultaneously injecting the substrate 20 into the vacuum formed skin material 10. It consists of a secondary process.

먼저, 주름이 전혀 없는 매끄럽고 깨끗한 표면의 표피재를 제공할 수 있도록 1차 공정으로서 표피재에 대한 진공 성형 공정이 선행된다.First, a vacuum molding process for the skin material is preceded as a primary process to provide a smooth and clean surface skin material with no wrinkles.

상기 1차 진공 성형 공정의 첫번째 단계는 외피(12)와 PP 폼시트(14)로 이루어진 표피재(10)를 예열시키는 단계로서, 약 230℃에서 약 30초 동안 히팅수단에 노출시켜 유연성을 갖도록 한다.The first step of the primary vacuum forming process is to preheat the skin 10 consisting of the sheath 12 and the PP foam sheet 14, which is exposed to the heating means at about 230 ° C. for about 30 seconds to have flexibility. do.

이어서, 필러트림 제조용 몰드의 상형(40)을 하향(50)으로부터 약 430mm 이송시켜 개방한 다음, 상기 표피재(10)를 안착시키고, 상기 몰드의 상형(40) 및 하형(50)을 클램핑시킨다.Subsequently, the upper mold 40 of the filler trim manufacturing mold is transported and opened about 430 mm from the lower side 50, and then the skin 10 is seated, and the upper mold 40 and the lower mold 50 of the mold are clamped. .

연이어, 상기 몰드 캐비티에 진공을 제공하는 바, 이때의 진공압력은 60mmHg, 진공제공시간은 20초 동안 진행된다.Subsequently, a vacuum is provided to the mold cavity, wherein the vacuum pressure is 60 mmHg, and the vacuum providing time is performed for 20 seconds.

따라서, 상기 몰드 캐비티내에 위치된 표피재는 필러트림의 외형과 동일한 형상으로 진공 성형되며, 진공에 의한 성형으로 인하여 주름이 전혀 없는 매끄럽고 깨끗한 표면의 표피재가 제공되어진다.Accordingly, the skin material located in the mold cavity is vacuum molded into the same shape as the outer shape of the filler trim, and a smooth and clean skin material without wrinkles is provided due to the molding by vacuum.

이러한 진공 성형후, 상기 표피재(10)를 몰드로부터 탈형시킨 다음, 다음에 이어질 동시사출 공정으로 이송시킨다.After this vacuum forming, the skin 10 is demolded from the mold and then transferred to the co-injection process that will follow.

여기서, 본 발명의 필러트림 제조 방법중 2차 공정인 동시사출 공정을 살펴보면 다음과 같다.Here, look at the co-injection process of the secondary process of the filler trim manufacturing method of the present invention as follows.

상기 2차의 동시사출 공정은 먼저 진공 성형된 표피재(10)를 사출용 몰드의 가동틀(60 : 고정틀로부터 약 550mm 거리로 이송된 상태)에 안착시킨 다음, 상기 사출용 몰드의 가동틀(60)을 고정틀(70)에 클램핑시키는 단계로부터 시작된다.In the second simultaneous injection process, first, the vacuum-formed skin 10 is seated on the movable mold 60 of the injection mold (transmitted at a distance of about 550 mm from the fixed mold), and then the movable mold of the injection mold ( Beginning with the step of clamping 60 to the holding frame 70.

이어서, 상기 표피재(10)의 PP 폼시트(14)와 상기 사출용 몰드의 고정틀(70) 사이에 형성된 기재 사출용 캐비티에 고유동성 PP계 수지인 플라스틱 사출액을 공급함으로써, 표피재(10)의 이면(PP 폼시트)에 기재(20)가 일체로 사출 성형된다.Subsequently, the skin material 10 is supplied by supplying a plastic injection liquid, which is a highly flexible PP resin, to the substrate injection cavity formed between the PP foam sheet 14 of the skin material 10 and the fixing mold 70 of the injection mold. The substrate 20 is integrally injection molded on the back surface (PP foam sheet) of the substrate.

다음으로, 상기 표피재(10)와 기재(20)가 일체로 사출 성형되는 단계후, 몰드의 가동틀(60)을 2mm 정도 미소형개시켜서 상기 표피재(10)를 순간 냉각시키는 동시에 표피재(10)를 구성하고 있는 PP 폼시트(14)가 본래의 두께로 복원되도록 하는 단계가 진행된다.Next, after the skin material 10 and the base material 20 are integrally injection molded, the movable frame 60 of the mold is micro-opened about 2 mm to instantaneously cool the skin material 10 and at the same time the skin material ( Step 10 is performed so that the PP foam sheet 14 constituting 10) is restored to its original thickness.

즉, 상기 표피재(10)의 PP 폼시트(14)가 사출용 몰드내에서 사출시 본래의 두께보다 더 얇게 압축되는 상태가 되므로, 몰드의 가동틀(60)을 2mm 정도 미소형개시켜서 상기 표피재(10)를 구성하고 있는 PP 폼시트(14)를 본래의 두께로 복원시키는 것이다.That is, since the PP foam sheet 14 of the skin material 10 is compressed to be thinner than the original thickness at the time of injection in the injection mold, the skin 60 of the mold is micro-opened by about 2 mm and the skin The PP foam sheet 14 constituting the ash 10 is restored to its original thickness.

마지막으로, 상기 몰드의 가동틀을 고정틀로부터 탈거한 다음, 표피재와 기재가 일체로 사출된 필러트림 제품을 탈형하게 된다.Finally, the movable frame of the mold is removed from the fixing frame, and then the filler trim product in which the skin material and the substrate are integrally injected is demolded.

본 발명의 실험예로서, 상기한 방법(진공성형 + 동시사출)으로 필러트림을 직접 시험 제작한 결과, 첨부한 도 2의 사진에서 보는 바와 같이 표피재에 주름이 전혀 발생하지 않은 양호한 품질의 필러트림을 제공할 수 있음을 알 수 있었다.As an experimental example of the present invention, as a result of direct test fabrication of the filler trim by the above-described method (vacuum molding + simultaneous injection), as shown in the attached photograph of FIG. It was found that the trim could be provided.

한편, 본 발명의 또 다른 실험예로서, 본 발명의 필러트림 제조 방법중 진공성형 공정을 생략하고 동시사출만을 진행하여 필러트림을 제작하였는 바, 첨부한 도 3의 사진에서 보는 바와 같이 표피재의 일부에 주름이 발생됨을 알 수 있었다.On the other hand, as another experimental example of the present invention, the filler trim was produced by omitting the vacuum molding step of the filler trim manufacturing method of the present invention and proceeding only simultaneous injection, as shown in the attached photograph of Figure 3 part of the skin material It can be seen that wrinkles occur.

결국, 진공 성형 및 동시사출 공정을 연속으로 진행함으로써, 양호한 표면의 필러트림을 제공할 수 있음을 알 수 있었다.As a result, it was found that by performing the vacuum forming and co-injection processes continuously, it is possible to provide a good surface filler trim.

이상에서 본 바와 같이, 본 발명에 따른 자동차용 필러트림 제조 방법에 의하면, 외피와 PP폼을 이루어진 표피재를 1차공정으로서 진공 성형하는 공정과, 진공 형성된 표피재에 기재를 2차공정으로서 동시 사출하는 공정으로 이루어지는 자동차용 필러트림 제조 방법을 제공함으로써, 주름이 전혀 없는 개끗한 표면의 필러트림을 제공할 수 있다.As described above, according to the method for manufacturing a filler trim for automobiles according to the present invention, a step of vacuum forming a skin material consisting of an outer skin and a PP foam as a first step, and simultaneously placing the substrate on a vacuum formed skin material as a secondary step By providing the automotive filler trim manufacturing method which consists of a process of injecting, the filler trim of a clean surface without wrinkles can be provided.

또한, 기존의 접착제 도포공정을 배제하여 작업성을 향상시킬 수 있고, 접착제 사용 공정을 생략하는 동시에 접착제 사용 비용을 절감할 수 있다.In addition, it is possible to improve the workability by excluding the conventional adhesive coating process, it is possible to omit the adhesive use process and reduce the adhesive use cost.

또한, 필러트림의 요부 형상이 복잡한 곡면일지라도, 표피재와 기재간의 박리 현상을 방지할 수 있다.Moreover, even if the recessed part shape of a filler trim is a complicated curved surface, peeling phenomenon between a skin material and a base material can be prevented.

Claims (4)

삭제delete 삭제delete 삭제delete 외피와 PP 폼시트로 이루어진 표피재를 1차공정으로서 진공 성형하는 공정과, 진공 형성된 표피재에 기재를 2차공정으로서 동시 사출하는 공정으로 이루어지되, 상기 2차의 동시사출 공정은 진공 성형된 표피재를 사출용 몰드의 가동틀에 안착시키는 단계와, 상기 사출용 몰드의 가동틀을 고정틀에 클램핑시키는 단계와, 상기 표피재의 PP폼시트와 상기 고정틀 사이에 형성된 기재 사출용 캐비티에 고유동성 PP계 수지인 플라스틱 사출액을 공급함으로써, 표피재와 기재가 일체로 사출 성형되는 단계와, 상기 몰드의 가동틀을 고정틀로부터 탈거한 다음 표피재와 기재가 일체로 사출된 필러트림 제품을 탈형하는 단계로 이루어지는 자동차용 필러트림 제조 방법에 있어서, The process of vacuum molding the skin material consisting of the outer skin and the PP foam sheet as a first step, and the step of simultaneously injecting the substrate to the vacuum formed skin material as a secondary process, the second simultaneous injection process is vacuum-molded Seating the skin material on the movable mold of the injection mold; clamping the movable mold of the injection mold on the fixing mold; and a highly flexible PP in the substrate injection cavity formed between the PP foam sheet of the skin material and the fixing mold. Supplying a plastic injection liquid, which is a resin, in which the skin material and the base material are injection molded integrally, removing the movable frame of the mold from the fixing frame, and then demolding the filler trim product in which the skin material and the base material are integrally injected. In the automobile filler trim production method consisting of, 상기 표피재와 기재가 일체로 사출 성형되는 단계후, 몰드의 가동틀을 2mm 정도 미소형개시켜서 상기 표피재를 구성하고 있는 PP폼 시트가 본래의 두께로 복원되도록 한 단계가 더 진행되는 것을 특징으로 하는 자동차용 필러트림 제조 방법.After the step of integrally injection molding the skin material and the base material, the step of further minimizing the movable frame of the mold to 2mm to restore the PP foam sheet constituting the skin material to its original thickness Automotive filler trim production method.
KR1020050068827A 2005-07-28 2005-07-28 Method for manufacturing filler trim of vihicle KR100666785B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100828420B1 (en) 2006-10-27 2008-05-08 한국기계연구원 Manufacturing method of Close-type channel using injection molding process
KR100909599B1 (en) * 2007-06-25 2009-07-24 한일이화주식회사 Method for manufacturing interior materials for vehicles using vacuum and low pressure injection molding
US7981345B2 (en) 2009-02-12 2011-07-19 Korea Institute Of Machinery And Materials Fabrication method of products with closed micro-channels by injection molding
KR20220053821A (en) * 2020-10-23 2022-05-02 주식회사 서연이화 pillar trim and manufacturing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100828420B1 (en) 2006-10-27 2008-05-08 한국기계연구원 Manufacturing method of Close-type channel using injection molding process
KR100909599B1 (en) * 2007-06-25 2009-07-24 한일이화주식회사 Method for manufacturing interior materials for vehicles using vacuum and low pressure injection molding
US7981345B2 (en) 2009-02-12 2011-07-19 Korea Institute Of Machinery And Materials Fabrication method of products with closed micro-channels by injection molding
KR20220053821A (en) * 2020-10-23 2022-05-02 주식회사 서연이화 pillar trim and manufacturing method thereof
KR102545360B1 (en) * 2020-10-23 2023-06-20 주식회사 서연이화 pillar trim and manufacturing method thereof

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