KR100957100B1 - Molding method for bumper back beam in vehicle - Google Patents

Molding method for bumper back beam in vehicle Download PDF

Info

Publication number
KR100957100B1
KR100957100B1 KR1020080050817A KR20080050817A KR100957100B1 KR 100957100 B1 KR100957100 B1 KR 100957100B1 KR 1020080050817 A KR1020080050817 A KR 1020080050817A KR 20080050817 A KR20080050817 A KR 20080050817A KR 100957100 B1 KR100957100 B1 KR 100957100B1
Authority
KR
South Korea
Prior art keywords
bumper
mold
back beam
long fiber
lattice mat
Prior art date
Application number
KR1020080050817A
Other languages
Korean (ko)
Other versions
KR20090124537A (en
Inventor
김탁수
Original Assignee
현대자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020080050817A priority Critical patent/KR100957100B1/en
Publication of KR20090124537A publication Critical patent/KR20090124537A/en
Application granted granted Critical
Publication of KR100957100B1 publication Critical patent/KR100957100B1/en

Links

Images

Classifications

    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/40—Shaping or impregnating by compression not applied
    • B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
    • B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/04—Making granules by dividing preformed material in the form of plates or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/10—Making granules by moulding the material, i.e. treating it in the molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
    • 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
    • B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3044—Bumpers

Abstract

차량용 범퍼 백빔 성형방법이 소개된다. 이 범퍼 백빔의 성형방법은 공간부가 마련된 격자매트와 롱파이버 펠릿을 준비하고, 범퍼빔 성형을 위한 금형에 격자매트를 투입하며, 격자매트가 투입된 금형에 롱파이버 펠릿을 공급하여 저압으로 사출한 후, 사출 성형된 범퍼빔을 금형에서 탈형한다. 상기의 성형방법에 의해 제조된 범퍼 백빔은 롱파이버 펠릿이 용융되어 성형된 엠보싱 표면을 갖는다. A bumper back beam forming method for a vehicle is introduced. The method of forming the bumper back beam includes preparing a lattice mat and a long fiber pellet provided with a space, inserting a lattice mat into a mold for forming a bumper beam, supplying long fiber pellets to a mold into which the lattice mat is injected, and then injecting at a low pressure. The injection molded bumper beam is demolded from the mold. The bumper back beam produced by the above molding method has an embossed surface in which long fiber pellets are melted and molded.

폴리프로필렌, 금형, 범퍼 백빔 Polypropylene, Mold, Bumper Back Beam

Description

차량용 범퍼 백빔 성형방법{Molding method for bumper back beam in vehicle}Molding method for bumper back beam in vehicle}

본 발명은 차량용 범퍼 백빔 성형방법에 관한 것이다.The present invention relates to a method for forming a bumper back beam for a vehicle.

일반적으로 차량용 범퍼 백빔은 글래스 파이버(Glass fiber)와 폴리프로필렌계 수지를 프레스 금형 내부의 글래스 매트 시트에 적층시켜 고압의 프레스로 프레스 성형하였다.In general, a bumper back beam for a vehicle is press-molded by pressing a glass fiber and a polypropylene resin on a glass mat sheet inside a press mold.

그런데 범퍼 백빔이 고압의 프레스 성형을 통해 제조됨에 따라, 보강용 리브, 장착홀, 및 브라켓 등의 부품에 대한 일체 성형이 불가하고, 강도 보강이 어려우며, 후가공이 추가되어야 한다는 문제가 있었다.However, as the bumper back beam is manufactured through high pressure press molding, there is a problem that integral molding of parts such as reinforcing ribs, mounting holes, and brackets is impossible, strength reinforcement is difficult, and post-processing should be added.

이러한 문제를 해결하기 위해, 종래에는 보강용 리브, 장착홀, 및 브라켓과 같은 부품이 일체로 사출되어 성형되는 범퍼 백빔 기술이 제안되기도 하였다.In order to solve this problem, a conventional bumper back beam technology in which parts such as reinforcing ribs, mounting holes, and brackets are integrally injected and molded is proposed.

도 1은 종래 기술에 따른 차량용 범퍼 백빔 성형방법을 나타낸 도면이고, 도 2는 종래 기술에 따른 차량용 범퍼 백빔 성형방법에 의해 성형된 범퍼 백빔을 나타낸 도면이다.1 is a view showing a bumper back beam forming method for a vehicle according to the prior art, Figure 2 is a view showing a bumper back beam formed by a bumper back beam forming method for a vehicle according to the prior art.

도 1에 도시된 바와 같이, 종래 범퍼 백빔의 경우, 폴리프로필렌계 수지에 글래스 파이버를 함침하여 격자 형태의 격자매트(10)를 제조하고, 제조된 격자매트(10)를 금형(30)에 투입하고, 격자매트(10)가 투입된 금형(300)에 롱파이버 펠릿(20)을 공급하여 저압으로 사출하여 범퍼 백빔(40)을 제조한다.As shown in FIG. 1, in the case of the conventional bumper back beam, a lattice mat 10 of a lattice shape is manufactured by impregnating glass fibers in a polypropylene resin, and the prepared lattice mat 10 is introduced into the mold 30. In addition, the long fiber pellets 20 are supplied to the mold 300 into which the lattice mat 10 is inserted, and the low-pressure injection is performed to manufacture the bumper back beam 40.

그러나 격자매트(10)가 투입된 금형(300)에 롱파이버 펠릿(20)을 공급하여 사출하는 경우, 도 2에 도시된 바와 같이, 격자매트(10)의 대부분이 범퍼 백빔의 표면에 몰리게 되는 바, 이로 인해, 격자매트(10)를 구성하는 직조 파이버가 균등하게 분포되지 않게 되어, 범퍼 백빔 단면이 균등한 단면 형상을 갖지 못하였고, 글래스 파이버가 범퍼 백빔의 표면에서 노출되어, 범퍼의 조립 작업시 작업자의 작업에 지장을 초래하는 등의 문제가 있었다.However, when the long fiber pellets 20 are supplied to the mold 300 into which the lattice mat 10 is inserted and injected, as shown in FIG. 2, most of the lattice mat 10 is concentrated on the surface of the bumper back beam. Due to this, the woven fibers constituting the lattice mat 10 are not evenly distributed, the cross section of the bumper back beam does not have an even cross-sectional shape, and the glass fiber is exposed on the surface of the bumper back beam, thereby assembling the bumper. There were problems such as disturbing the work of the city worker.

이상, 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.As described above, the matters described as the background art are merely for the purpose of improving the understanding of the background of the present invention and should not be taken as acknowledging that they correspond to the related art already known to those skilled in the art.

이러한 문제점을 해결하기 위한 본 발명의 목적은, 용융된 롱파이버 펠릿이 범퍼 백빔의 내부에 고르게 섞여 균등한 단면이 유지될 수 있도록 하는 차량용 범퍼 백빔 성형방법을 제공하는 것이다.An object of the present invention for solving this problem is to provide a method for forming a bumper back beam for a vehicle in which the molten long fiber pellets are evenly mixed inside the bumper back beam to maintain an even cross section.

상기 목적을 달성하기 위해 본 발명의 차량용 범퍼 백빔 성형방법은, 공간부가 형성되도록 파이버를 엮어 격자매트를 제조하고, 파이버를 롱파이버 펠릿 형태로 제조하는 원재료 준비단계와, 범퍼빔 성형을 위한 금형에 격자매트를 투입하는 단계와, 격자매트가 투입된 금형에 롱파이버 펠릿을 공급하여 저압으로 범퍼빔을 사출하는 단계, 및 사출 성형된 범퍼빔을 금형에서 탈형하는 단계를 포함하고, 상기 범퍼빔을 사출하는 단계는, 엠보싱부가 표면에 형성된 금형을 통해 엠보싱 표면을 갖는 범퍼빔을 사출 성형하고, 상기 원재료 준비단계는, 폴리프로필렌계 수지 및 첨가제를 혼합하여 압출기에서 압출하고, 미리 성형된 글래스 파이버에 상기 압출기의 압출물을 함침한 후 와인드(wind)하고, 와인드된 성형물을 격자 형태로 엮어 격자매트를 제조하는 격자매트 제조단계, 및 폴리프로필렌계 수지 및 첨가제를 혼합하여 압출기에서 압출하고, 미리 성형된 글래스 파이버에 상기 압출기의 압출물을 함침한 후 절단하여 롱파이버 펠릿을 제조하는 롱파이버 펠릿 제조단계를 포함한다.
상기 격자매트를 투입하는 단계는, 범퍼 백빔의 형상에 대응되는 위치인 금형내 캐비티에 격자매트를 배치하는 것이 바람직하다. 상기 격자매트 및 롱파이버 펠릿은, 미리 성형된 글래스 파이버에 폴리프로필렌계 수지를 함침하여 구성된 것이 바람직하다.In order to achieve the above object, the bumper back beam forming method for a vehicle according to the present invention comprises a raw material preparation step of weaving fibers to form a space part and preparing fibers in the form of long fiber pellets, and forming a mold for bumper beam molding. Injecting the lattice mat, supplying long fiber pellets to the mold into which the lattice mat is injected, injecting the bumper beam at low pressure, and demolding the injection-molded bumper beam from the mold, and injecting the bumper beam. The step of injection, injection molding the bumper beam having the embossed surface through the mold formed on the surface embossed, the raw material preparation step, the polypropylene-based resin and additives are mixed and extruded in an extruder, the pre-formed glass fiber to the After impregnating the extrudate of the extruder, and wind (wind), weaving the wound molding in the form of a lattice to produce a lattice mat. Lattice mat manufacturing step, and a long fiber pellet manufacturing step of mixing the polypropylene-based resin and additives and extruded in an extruder, impregnating the extrudate of the extruder in a preformed glass fiber and then cut to produce a long fiber pellet Include.
In the step of inserting the lattice mat, it is preferable to arrange the lattice mat in the mold cavity which is a position corresponding to the shape of the bumper back beam. The lattice mat and the long fiber pellets are preferably formed by impregnating a polypropylene resin into a preformed glass fiber.

삭제delete

삭제delete

본 발명에 의하면, 격자매트에 형성된 공간부를 통해 용융된 롱파이버 펠릿이 고르게 섞이므로, 범퍼 백빔의 단면을 균등하게 유지할 수 있다는 이점이 있다.According to the present invention, since the molten long fiber pellets are uniformly mixed through the space portion formed in the lattice mat, there is an advantage that the cross section of the bumper back beam can be maintained evenly.

아울러, 본 발명은 범퍼 백빔의 표면을 용융된 롱파이버 펠릿으로 구성된 엠보싱 형태로 구현하므로, 글래스 파이버의 노출에 따른 작업의 불편함을 방지하여, 작업성을 향상할 수 있다는 이점이 있다.In addition, the present invention implements the surface of the bumper backbeam in the embossed form consisting of molten long fiber pellets, there is an advantage that can prevent work inconvenience caused by exposure of the glass fiber, thereby improving workability.

첨부된 도면에 의거하여 본 발명의 실시예를 상세히 설명하기로 한다.Embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 차량용 범퍼 백빔 성형방법을 나타낸 도면이고, 도 4는 본 발명에 따른 차량용 범퍼 백빔 성형방법을 블록으로 나타낸 도면이며, 도 5는 본 발명에 따른 차량용 범퍼 백빔 성형방법에 의해 성형된 범퍼 백빔을 나타낸 도면이다.Figure 3 is a view showing a bumper back beam forming method for a vehicle according to the present invention, Figure 4 is a block diagram showing a bumper back beam forming method for a vehicle according to the present invention, Figure 5 is a bumper back beam forming method for a vehicle according to the present invention Figure showing a molded bumper back beam.

도 3 또는 도 4에 도시된 바와 같이, 범퍼 백빔 성형방법은, 용융된 롱파이버 펠릿이 격자매트에 형성된 공간부를 통해 고르게 섞이도록 하여, 범퍼 백빔의 내부 단면이 균등하게 유지될 수 있도록 한다는 점에 가장 큰 특징이 있다. As shown in Fig. 3 or 4, the bumper backbeam shaping method allows the molten long fiber pellets to be evenly mixed through the space formed in the lattice mat, so that the inner cross section of the bumper backbeam can be maintained evenly. It has the biggest feature.

이를 구현하기 위한 구성을 구체적으로 설명하면, 이 범퍼 백빔 성형방법은, 공간부(110)를 갖는 격자매트(100) 및 롱파이버 펠릿(200)을 준비하는 원재료 준비단계와, 금형(300)에 격자매트(100)를 투입하는 단계와, 금형(300)에 롱파이버 펠릿(200)을 공급하여 사출하는 단계, 및 사출 성형된 범퍼 백빔(400)을 금형(300)에서 탈형하는 단계를 포함한다.In detail, the configuration for implementing the bumper back beam forming method includes a raw material preparation step of preparing the lattice mat 100 and the long fiber pellets 200 having the space portion 110, and the mold 300. Injecting the lattice mat 100, supplying and injecting the long fiber pellets 200 into the mold 300, and demolding the injection-molded bumper back beam 400 from the mold 300. .

원재료 준비단계는, 공간부(110)를 갖도록 격자매트(100)를 제조하는 격자매트 제조단계와, 롱파이버 펠릿(200)을 제조하는 롱파이버 펠릿 제조단계로 구성된다.The raw material preparation step includes a lattice mat manufacturing step of manufacturing the lattice mat 100 to have a space 110, and a long fiber pellet manufacturing step of manufacturing the long fiber pellets 200.

이 중에서 격자매트 제조단계는, 먼저, 폴리프로필렌계 수지 및 첨가제를 압출기에 투입한 후 혼합하여 가열 용융하고, 유동상태의 폴리프로필렌계 수지 및 첨가제를 다이에서 압출하는 동시에 연속으로 압착한다. 폴리프로필렌계 수지 및 첨가제의 혼합물이 압출되면, 압출기의 압출물을 미리 성형된 글래스 파이버에 함침한 후, 와인드(wind)한다. 이때, 미리 성형된 글래스 파이버는 장섬유 형태를 갖는다.In the lattice mat manufacturing step, first, the polypropylene-based resin and additives are introduced into an extruder, mixed, heated and melted, and the polypropylene-based resin and additives in a fluid state are extruded from a die and simultaneously compressed. When the mixture of the polypropylene resin and the additive is extruded, the extrudate of the extruder is impregnated into a preformed glass fiber and then winded. At this time, the preformed glass fiber has a long fiber form.

이후, 와인드된 압출물을 공간부(110)가 형성되도록 격자 형태로 엮어 배열하는 위빙(weaving) 공정을 거치므로, 폴리프로필렌계 격자매트(100)를 제조한다. 여기서, 공간부(100)는 저압 사출시 용융된 롱파이버 펠릿(200)이 통과되면서 스며드는 빈 공간으로, 용융된 롱파이버 펠릿(200)은 공간부(100)를 통해 격자매 트(100)에 골고루 섞일 수 있다. 이로써, 범퍼 백빔의 단면은 균등한 구성물로 유지될 수 있다. Thereafter, since the winding extrudate undergoes a weaving process of weaving and arranging the wound parts in a lattice form to form the space 110, a polypropylene grid mat 100 is manufactured. Here, the space part 100 is an empty space penetrated by passing the molten long fiber pellets 200 at low pressure injection, and the molten long fiber pellets 200 are connected to the lattice mat 100 through the space part 100. Can be mixed evenly As such, the cross section of the bumper backbeam can be maintained in an even configuration.

격자매트(100)는 성형 예정인 범퍼 백빔(400)과 대응되는 면적으로 형성되는 것이 바람직하다. 이러한 격자매트(100)는 롱파이버 펠릿(200)에 의해 사출 성형되는 범퍼 백빔(400)의 강성을 보강하는 역할을 한다.The lattice mat 100 is preferably formed with an area corresponding to the bumper back beam 400 to be formed. The lattice mat 100 serves to reinforce the rigidity of the bumper back beam 400 injection-molded by the long fiber pellet 200.

롱파이버 펠릿 제조단계는, 폴리프로필렌계 수지 및 첨가제를 압출기에 투입한 후 혼합하여 가열 용융하고, 유동 상태의 폴리프로필렌계 수지 및 첨가제를 다이에서 압출하는 동시에 연속으로 압착한다. 폴리프로필렌계 수지 및 첨가제의 혼합물이 압출되면, 압출기의 압출물을 미리 성형된 글래스 파이버에 함침하고, 절단하여 폴리프로필렌계 롱파이버 펠릿(200)을 제조한다.In the long fiber pellet manufacturing step, the polypropylene resin and the additive are added to the extruder, mixed, heated and melted, and the polypropylene resin and the additive in the fluid state are extruded from the die and simultaneously compressed. When the mixture of the polypropylene resin and the additive is extruded, the extrudate of the extruder is impregnated into a preformed glass fiber and cut to prepare a polypropylene long fiber pellet 200.

한편, 금형(300)에 격자매트(100)를 투입하는 단계는, 원재료 준비단계를 통해 폴리프로필렌계 격자매트(100)와 폴리프로필렌계 롱파이버 펠릿(200)이 준비된 후, 준비된 폴리프로필렌계 격자매트(100)를 범퍼 백빔(400)의 성형을 위한 금형(300)내 캐비티에 투입한다. 이때, 격자매트(100)는 범퍼 백빔(400)의 형상에 대응되는 위치인 금형(300)내 캐비티에 배치된다.On the other hand, the step of injecting the lattice mat 100 into the mold 300, the polypropylene-based grating mat 100 and the polypropylene-based long fiber pellets 200 is prepared through the raw material preparation step, the prepared polypropylene-based grating The mat 100 is introduced into a cavity in the mold 300 for forming the bumper back beam 400. In this case, the grid mat 100 is disposed in the cavity in the mold 300, which is a position corresponding to the shape of the bumper back beam 400.

상기 사출하는 단계는, 금형(300)내 캐비티에 상기 격자매트(100)가 투입된 후 금형(300)내 캐비티가 닫히면, 폴리프로필렌계 롱파이버 펠릿(200)을 금형(300)내 캐비티에 투입하고 가열 용융하여 사출 충전한 후, 고화 또는 경화시킴으로써 범퍼 백빔(400) 성형품을 성형한다.In the step of injecting, when the lattice mat 100 is injected into the cavity in the mold 300 and the cavity in the mold 300 is closed, the polypropylene-based long fiber pellet 200 is introduced into the cavity in the mold 300. After injection-melting by injection melting, the molded article of the bumper backbeam 400 is molded by solidification or curing.

특히, 금형(300)의 표면에는 엠보싱(embossing)부가 형성된다. 이 엠보싱부 는 오목하게 금형(300)의 표면에 형성되는 홈 형상으로, 사출 성형을 통해 범퍼 백빔(400) 성형물의 표면에 볼록하게 형성되는 엠보싱 표면(210')을 형성한다. In particular, an embossing portion is formed on the surface of the mold 300. The embossed portion is concave in the shape of a groove formed on the surface of the mold 300, and forms an embossed surface 210 'which is convexly formed on the surface of the molding of the bumper back beam 400 through injection molding.

즉, 저압 사출시 용융된 롱파이버 펠릿(200)은 격자매트(100)의 공간부(100)를 통과하여 엠보싱부에 충진되므로, 범퍼 백빔(400) 성형물의 표면에는 용융된 롱파이버 펠릿(200)으로 구성된 엠보싱 표면(210')이 형성된다.That is, the molten long fiber pellets 200 during the low pressure injection are filled in the embossed portion through the space portion 100 of the lattice mat 100, so that the molten long fiber pellets 200 are formed on the surface of the molding of the bumper back beam 400. And an embossing surface 210 'is formed.

도 5에 도시된 바와 같이, 본 실시예에서는 엠보싱 표면(210')이 범퍼 백빔(400) 성형물의 상단과 하단에 성형되었지만, 범퍼 백빔(400) 성형물의 측부에도 성형될 수 있을 것이다. 이때, 금형(300)의 측부 표면에는 범퍼 백빔(400) 성형물의 측부에 대응되는 엠보싱부가 형성되는 것은 물론이다.As shown in FIG. 5, the embossed surface 210 ′ is molded at the top and bottom of the bumper backbeam 400 molding in this embodiment, but may also be formed on the side of the bumper backbeam 400 molding. At this time, of course, the embossed portion corresponding to the side portion of the molding of the bumper back beam 400 is formed on the side surface of the mold 300.

이와 같이, 본 발명에 따른 범퍼 백빔(400)은, 공간부(110)가 형성되도록 파이버가 엮어진 격자매트(100)를 금형(300)에 투입하고, 롱파이버 펠릿(200)을 격자매트(100)가 투입된 금형(300)에 공급하여 저압 사출하여 제조된 범퍼 백빔이다. 이러한 범퍼 백빔(400)은 롱파이버 펠릿(200)이 용융되어 성형된 엠보싱 표면을 갖는 것이 바람직하며, 이렇게 사출 성형된 범퍼 백빔(400)은, 폼재(미도시)와 함께 격자매트(100') 및 롱파이버 펠릿 사출물(200')을 포함하여 차량의 범퍼를 구성한다. As described above, in the bumper back beam 400 according to the present invention, the lattice mat 100 into which the fibers are woven so as to form the space 110 is inserted into the mold 300, and the long fiber pellet 200 is placed into the lattice mat ( It is a bumper back beam manufactured by low pressure injection by supplying 100 to the injected mold 300. The bumper back beam 400 preferably has an embossed surface in which the long fiber pellets 200 are melted and molded, and the injection molded bumper back beam 400 includes a lattice mat 100 'together with a foam material (not shown). And a long fiber pellet injection 200 'to constitute a bumper of the vehicle.

본 발명을 바람직한 실시 예를 사용하여 상세히 설명하였으나, 본 발명의 범위는 특정 실시 예에 한정되는 것은 아니며, 첨부된 특허청구범위에 의하여 해석되어야 할 것이다. 또한, 이 기술분야에서 통상의 지식을 습득한 자라면, 본 발명의 범위에서 벗어나지 않으면서도 많은 수정과 변형이 가능함을 이해하여야 할 것이 다.Although the present invention has been described in detail using the preferred embodiments, the scope of the present invention is not limited to the specific embodiments, it should be interpreted by the appended claims. In addition, those of ordinary skill in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

도 1은 종래 기술에 따른 차량용 범퍼 백빔 성형방법을 도시한 구성도.1 is a block diagram showing a bumper back beam forming method for a vehicle according to the prior art.

도 2는 종래 기술에 따른 차량용 범퍼 백빔 성형방법에 의해 성형된 범퍼 백빔을 도시한 구성도.Figure 2 is a block diagram showing a bumper back beam molded by a vehicle bumper back beam molding method according to the prior art.

도 3은 본 발명에 따른 차량용 범퍼 백빔 성형방법을 도시한 구성도.Figure 3 is a block diagram showing a bumper back beam forming method for a vehicle according to the present invention.

도 4는 본 발명에 따른 차량용 범퍼 백빔 성형방법을 도시한 블록도.Figure 4 is a block diagram showing a bumper back beam forming method for a vehicle according to the present invention.

도 5는 본 발명에 따른 차량용 범퍼 백빔 성형방법에 의해 성형된 범퍼 백빔을 도시한 구성도.Figure 5 is a block diagram showing a bumper back beam molded by a vehicle bumper back beam forming method according to the present invention.

※도면의 주요 부분에 대한 부호설명※※ Code explanation for main part of drawing ※

100 :격자매트 200 :롱파이버 펠렛 100: lattice mat 200: long fiber pellets

300 :금형 400 :범퍼 백빔300: mold 400: bumper back beam

Claims (7)

공간부가 형성되도록 파이버를 엮어 격자매트를 제조하고, 파이버를 롱파이버 펠릿 형태로 제조하는 원재료 준비단계와, 범퍼빔 성형을 위한 금형에 격자매트를 투입하는 단계와, 격자매트가 투입된 금형에 롱파이버 펠릿을 공급하여 저압으로 범퍼빔을 사출하는 단계와, 사출 성형된 범퍼빔을 금형에서 탈형하는 단계를 포함하고, A lattice mat is manufactured by weaving fibers to form a space part, preparing a raw material for manufacturing fibers in the form of a long fiber pellet, injecting a lattice mat into a mold for forming a bumper beam, and a long fiber in a mold into which the lattice mat is inserted. Supplying pellets to inject the bumper beam at low pressure, and demolding the injection-molded bumper beam from the mold, 상기 범퍼빔을 사출하는 단계는, 엠보싱부가 표면에 형성된 금형을 통해 엠보싱 표면을 갖는 범퍼빔을 사출 성형하고, 상기 원재료 준비단계는, 폴리프로필렌계 수지 및 첨가제를 혼합하여 압출기에서 압출하고, 미리 성형된 글래스 파이버에 상기 압출기의 압출물을 함침한 후 와인드(wind)하고, 와인드된 성형물을 격자 형태로 엮어 격자매트를 제조하는 격자매트 제조단계와, 폴리프로필렌계 수지 및 첨가제를 혼합하여 압출기에서 압출하고, 미리 성형된 글래스 파이버에 상기 압출기의 압출물을 함침한 후 절단하여 롱파이버 펠릿을 제조하는 롱파이버 펠릿 제조단계를 포함하는 것을 특징으로 하는 차량용 범퍼 백빔 성형방법.The injection of the bumper beam may include injection molding a bumper beam having an embossed surface through a mold formed on the surface of the embossing part, and the preparing of the raw material may be performed by mixing a polypropylene resin and an additive and extruding it in an extruder. The glass fiber is impregnated with the extrudate of the extruder, and then winded, and a lattice mat manufacturing step of weaving the wound molding in a lattice form to produce a lattice mat, and extruded in an extruder by mixing polypropylene resin and additives. And a long fiber pellet manufacturing step of manufacturing a long fiber pellet by impregnating and cutting the extrudate of the extruder in a preformed glass fiber. 삭제delete 삭제delete 청구항 1에 있어서, 상기 격자매트를 투입하는 단계는, The method of claim 1, wherein injecting the lattice mat, 범퍼 백빔의 형상에 대응되는 위치인 금형내 캐비티에 격자매트를 배치하는 것을 특징으로 하는 차량용 범퍼 백빔 성형방법.A method for forming a bumper back beam for a vehicle, characterized in that a lattice mat is disposed in a cavity in a mold corresponding to the shape of the bumper back beam. 청구항 1에 있어서, 상기 격자매트 및 롱파이버 펠릿은, The method according to claim 1, The lattice mat and long fiber pellets, 미리 성형된 글래스 파이버에 폴리프로필렌계 수지를 함침하여 구성된 것을 특징으로 하는 차량용 범퍼 백빔 성형방법.A bumper back beam molding method for a vehicle, characterized in that the preformed glass fiber is impregnated with a polypropylene resin. 삭제delete 삭제delete
KR1020080050817A 2008-05-30 2008-05-30 Molding method for bumper back beam in vehicle KR100957100B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080050817A KR100957100B1 (en) 2008-05-30 2008-05-30 Molding method for bumper back beam in vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080050817A KR100957100B1 (en) 2008-05-30 2008-05-30 Molding method for bumper back beam in vehicle

Publications (2)

Publication Number Publication Date
KR20090124537A KR20090124537A (en) 2009-12-03
KR100957100B1 true KR100957100B1 (en) 2010-05-13

Family

ID=41686464

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080050817A KR100957100B1 (en) 2008-05-30 2008-05-30 Molding method for bumper back beam in vehicle

Country Status (1)

Country Link
KR (1) KR100957100B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101472683B1 (en) * 2013-08-14 2014-12-12 롯데케미칼 주식회사 Manufacturing method of bumper beam for vehicle
KR200476472Y1 (en) * 2014-02-11 2015-03-04 한일이화 주식회사 Bumper cover strucutre for vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100570229B1 (en) * 1997-08-04 2006-07-21 도레이 가부시끼가이샤 Carbon fiber fabrics, fiber-reinforced plastic molded articles using the fabrics, and methods of making the molded articles
KR20080033598A (en) * 2006-10-12 2008-04-17 한일이화주식회사 Device and method for manufacture of interior parts for automobiles

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100570229B1 (en) * 1997-08-04 2006-07-21 도레이 가부시끼가이샤 Carbon fiber fabrics, fiber-reinforced plastic molded articles using the fabrics, and methods of making the molded articles
KR20080033598A (en) * 2006-10-12 2008-04-17 한일이화주식회사 Device and method for manufacture of interior parts for automobiles

Also Published As

Publication number Publication date
KR20090124537A (en) 2009-12-03

Similar Documents

Publication Publication Date Title
KR100941096B1 (en) Molding method of bumper back beam for vehicle
CN103269841B (en) Method and device for producing fibre-einforced interior trim components comprising attachment elements for motor vehicles
CA2816714C (en) Reinforced blow moulded vehicle running board and method of making same
JP7365753B2 (en) Sound absorbing panel material for vehicles
CN105392615B (en) Method for manufacturing the plastic member that can bear high mechanical load with final profile with being consistent
WO2013033024A3 (en) Manufacturing a vehicle trim component via compression and injection molding
CN105531101B (en) The manufacturing method of fiber reinforcement component
CN101131032A (en) Moulded glass fibre reinforced plastic grille and manufacturing method thereof
CN102112308A (en) Panel and method for producing same
CN108290328A (en) The manufacturing method of composite shaped body
KR100957100B1 (en) Molding method for bumper back beam in vehicle
JP2018176576A (en) Resin molding and method for producing the same
US7794642B2 (en) Process and mold for molding structured sheets
KR102349669B1 (en) Forming method of fiber reinforced plastic material
JP5810840B2 (en) Method for producing molded structure and mold
KR101472683B1 (en) Manufacturing method of bumper beam for vehicle
CN110682550B (en) Vehicle door or tailgate with support structure and method for producing the same
JP7116673B2 (en) Composite member for vehicle and manufacturing method thereof
RU2738650C1 (en) Method of moulding articles reinforced with continuous fibre carcass
US20070298200A1 (en) Hollow moulded part and method for manufacturing a hollow moulded part
CZ2007132A3 (en) Process for producing multilayered part and foaming tool for making the same
JP5780131B2 (en) Manufacturing method of molded products
KR101989787B1 (en) Manufacturing method for car interior part
CN206623335U (en) A kind of engine support mould
CN214773523U (en) Hybrid component for a motor vehicle, vehicle and insert

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20130430

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20140430

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20150430

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20180427

Year of fee payment: 9

FPAY Annual fee payment

Payment date: 20190429

Year of fee payment: 10