KR20030044683A - a injection molder - Google Patents

a injection molder Download PDF

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Publication number
KR20030044683A
KR20030044683A KR1020010075522A KR20010075522A KR20030044683A KR 20030044683 A KR20030044683 A KR 20030044683A KR 1020010075522 A KR1020010075522 A KR 1020010075522A KR 20010075522 A KR20010075522 A KR 20010075522A KR 20030044683 A KR20030044683 A KR 20030044683A
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KR
South Korea
Prior art keywords
shaft
cylinder
unit
melting
screw
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KR1020010075522A
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Korean (ko)
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KR100469584B1 (en
Inventor
조영구
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김영임
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Priority to KR10-2001-0075522A priority Critical patent/KR100469584B1/en
Publication of KR20030044683A publication Critical patent/KR20030044683A/en
Application granted granted Critical
Publication of KR100469584B1 publication Critical patent/KR100469584B1/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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/164—The moulding materials being injected simultaneously
    • 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
    • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • B29C45/1866—Feeding multiple materials
    • 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
    • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • B29C2045/1875—Hoppers connected to a feed screw

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

Abstract

PURPOSE: An injection molder is provided to produce a beautiful product in external appearance by forming natural patterns in several colors with low cost. CONSTITUTION: A screw apparatus of an intruder comprises a transferring unit(50); a melting unit(60) and a pressurizing head unit(70). The transferring unit forms a front portion of a shaft(32). A screw wing is formed to an outer peripheral surface of the shaft of the transferring unit. The melting unit forms a rear portion of the shaft. The melting unit does not have the screw wing. The pressurizing head unit is a rear end of the melting unit. Thereby, raw material transferred to the molding unit by the transferring unit is supplied to the pressurizing head unit without mixing fully. Therein, natural patterns in various colors are made by injecting materials without mixing fully. A slip member(66) is installed to the outer peripheral surface of the shaft in a tubular shape. Therein, the slip member prevents two color materials from mixing with a rotating shaft.

Description

사출기{a injection molder}Injection machine {a injection molder}

본 발명은 사출기에 관한 것으로, 구성이 간단하여 코스트가 저렴할 뿐만 아니라 복수개의 색상에 의한 자연스러운 무늬가 형성되어 외관이 미려한 사출품을 제조할 수 있는 새로운 구성의 사출기에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection molding machine, which is simple in construction and low in cost, and relates to a new injection molding machine capable of producing an injection molded product with a beautiful appearance by forming a natural pattern by a plurality of colors.

사출품 중에는 복수 종류의 색상에 의한 물결무늬와 같은 불규칙하고 자연스로운 무늬가 형성되어 외관이 미려하도록 제조된 것이 있다. 이와 같은 제품은 도 1에 도시된 바와 같이, 일측에 런너(2)가 형성된 사출금형(4)과, 이 사출금형(4)의 런너(12)에 연결되는 복수개의 사출유닛(10)으로 이루어진 사출기에 의해 성형된다. 이때 상기 각각의 사출유닛(10)은 사출금형(4)의 런너(2)와 연결되는 가열실린더(12)와, 상기 가열실린더(12)의 기단부에 구비되는 호퍼(14)와, 상기 가열실린더(12) 내부에 장착되는 스크류기구(16)와, 상기 스크류기구(16)를 구동시키는 모터 등을 포함하여 이루어진다. 이때 상기 사출유닛(10)들의 가열실린더(12)들은 선단부가 연결되어 각 가열실린더(12)에서 용융된 수지원료들이 사출금형(4)으로 동시에 주입되도록 구성된다. 따라서 각각의 호퍼(14)에서 펠렛형태의 수지원료와 서로 다른 색상의 안료를 혼합하고 이를 가열실린더(12)에 투입하면 수지원료가 용융되면서 안료와 혼합되어 스크류기구(16)에 의해 가열실린더(12)의 선단으로 이송되어 사출금형(4)으로 주입된다. 이때 각 가열실린더(12)에 의해 공급되는 서로 다른 색상의 수지원료들이 완전히 혼합되지 않으므로 각 수지들의 색상이 유지되므로 이에 따라 사출품에 복수 종류의 색상에 의한 자연스러운의 무늬가 형성된다.Among the injection-molded products, irregular and natural patterns such as wave patterns by plural kinds of colors are formed and manufactured to have a beautiful appearance. As shown in FIG. 1, the product includes an injection mold 4 having a runner 2 formed at one side thereof, and a plurality of injection units 10 connected to the runner 12 of the injection mold 4. Molded by an injection molding machine. In this case, each injection unit 10 is a heating cylinder 12 connected to the runner 2 of the injection mold 4, the hopper 14 provided at the proximal end of the heating cylinder 12, and the heating cylinder 12, a screw mechanism 16 mounted therein, a motor for driving the screw mechanism 16, and the like. At this time, the heating cylinders 12 of the injection units 10 are configured to be connected to the tip portion is injected into the injection mold (4) at the same time the water support material melted in each heating cylinder (12). Therefore, in each hopper 14, a pellet-type water support material and pigments of different colors are mixed and injected into the heating cylinder 12, and the water support material is mixed with the pigment while the water support material is melted. It is transferred to the tip of 12) and injected into the injection mold (4). At this time, since the water support materials of different colors supplied by the respective heating cylinders 12 are not completely mixed, the colors of the respective resins are maintained, thereby forming a natural pattern of the plurality of colors in the injection molded product.

그러나 이와 같은 종래의 사출기는 사출품에 표현되는 색상의 종류에 따라 상기 사출유닛(10)이 복수개로 구비되어야 하므로 많은 설비비와 넒은 공간이 필요하며, 이에 따라 제품의 코스트가 상승되었다.However, such a conventional injection machine requires a plurality of injection units 10 according to the type of color represented in the injection product, and thus requires a lot of equipment cost and space, thereby increasing the cost of the product.

본 발명은 전술한 바와 같은 문제점을 해결하기 위한 것으로서, 본 발명의 목적은 구성이 간단하면서도 복수 종류의 색상에 의한 자연스러운 무늬가 형성되어 외관이 미려한 제품을 저렴한 코스트로 제조할 수 있는 새로운 구성의 사출기를 제공하고자 하는 것이다.The present invention is to solve the problems as described above, the object of the present invention is a simple injection molding machine of a new configuration that can be manufactured at a low cost to produce a product with a beautiful appearance by forming a natural pattern by a plurality of colors Is to provide.

도 1은 종래의 이중사출기를 보인 단면도1 is a cross-sectional view showing a conventional double injection machine

도 2는 본 발명의 바람직한 실시예를 보인 단면도2 is a cross-sectional view showing a preferred embodiment of the present invention

<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

4. 사출금형 20. 실린더4. Injection mold 20. Cylinder

30. 스크류기구 32. 샤프트30. Screw Mechanism 32. Shaft

34. 스크류날개 40. 호퍼34. Screw wing 40. Hopper

50. 이송부 60. 용융부50. Transfer section 60. Melt section

66. 슬립부재 70. 가압헤드부66. Slip member 70. Pressurizing head

본 발명에 따르면, 일측에 런너(2)가 형성된 사출금형(4)과, 상기 런너(2)에 연결되는 실린더(20)와, 상기 실린더(20)의 내부에 장착되며 사프트(32)와 스크류날개(34)를 포함하여 이루어진 스크류기구(30)와, 상기 스크류기구(30)를 구동시키는 모터와, 상기 실린더(20)의 기단부에 장착되어 실린더(20)의 내부에 수지원료를 공급하도록 된 호퍼(40)와, 상기 실린더(20)에 장착되어 실린더(20) 내부의 수지원료를 가열, 용융시키는 히터(22)를 포함하는 사출기에 있어서, 상기 스크류기구(30)는 샤프트(32)의 전반부를 이루며 샤프트(32)의 외주면에 스크류날개(34)가 형성된 이송부(50)와, 샤프트(32)의 후반부를 이루며 샤프트(32)의 외주면에 스크류날개(34)가 형성되지 않은 용융부(60) 및 용융부(60) 후단의 가압헤드부(70)로 구성되어, 상기 이송부(50)에 의해 용융부(60)로 이송된 2색 이상의 원료들이 충분히 혼합되지 않은 상태로 상기 가압헤드부(70)에 공급되어 사출금형(4)으로 주입되도록 된 것을 특징으로 하는 사출기가 제공된다.According to the present invention, an injection mold 4 having a runner 2 formed on one side thereof, a cylinder 20 connected to the runner 2, mounted inside the cylinder 20, and a shaft 32 and a screw. A screw mechanism 30 including a blade 34, a motor for driving the screw mechanism 30, and a proximal end of the cylinder 20 to supply a water support fee to the interior of the cylinder 20 In the injection machine including a hopper 40 and a heater 22 mounted to the cylinder 20 to heat and melt the water support material in the cylinder 20, the screw mechanism 30 is formed by the shaft 32. Conveying part 50 having a screw blade 34 formed on the outer circumferential surface of the shaft 32 and forming a first half portion, and a molten part having the screw blade 34 formed on the outer circumferential surface of the shaft 32 forming the latter half of the shaft 32 ( 60) and the pressurizing head portion 70 at the rear end of the melting portion 60, and is transferred to the melting portion 60 by the transfer portion 50. It is provided with an injection machine, characterized in that the two or more raw materials are supplied to the pressurizing head portion 70 in a state that is not sufficiently mixed to be injected into the injection mold (4).

본 발명의 다른 특징에 따르면, 상기 용융부(60)를 이루는 샤프트(32)의 외주면에는 샤프트(32)와 슬립되는 원통형상의 슬립부재(66)가 구비되어, 상기 용융부(60)로 이송된 2색 이상의 원료가 회전되는 샤프트(32)에 의해 혼합되는 것이 방지되도록 된 것을 특징으로 하는 사출기가 제공된다.According to another feature of the invention, the outer peripheral surface of the shaft 32 constituting the melted portion 60 is provided with a cylindrical slip member 66 that slips with the shaft 32, and is transferred to the melted portion 60 An injection molding machine is provided, characterized in that two or more raw materials are prevented from being mixed by the rotating shaft 32.

이하, 본 발명의 바람직한 실시예를 첨부한 도면에 의거하여 설명하면 다음과 같다. 도 2는 본 발명의 일 실시예를 보인 단면도이며, 도 3은 상기 실시예에 의해 제조된 제품을 보인 도면이다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. 2 is a cross-sectional view showing an embodiment of the present invention, Figure 3 is a view showing a product manufactured by the embodiment.

본 발명은 일측에 런너(2)가 형성된 사출금형(4)과, 상기 런너(2)에 연결되는 실린더(20)와, 상기 실린더(20)의 내부에 장착되는 스크류기구(30)와, 상기 스크류기구(30)를 구동시키는 모터와, 상기 실린더(20)의 기단부에 장착되어 실린더(20)의 내부에 수지원료를 공급할 수 있도록 된 호퍼(40)와, 상기 실린더(20)에 장착되어 실린더(20) 내부의 수지원료를 가열, 용융시키는 히터(22)를 포함하는 이루어진 사출기에 관한 것이다.The present invention is an injection mold (4) having a runner (2) formed on one side, a cylinder (20) connected to the runner (2), a screw mechanism (30) mounted inside the cylinder (20), and A motor for driving the screw mechanism 30, a hopper 40 mounted at the proximal end of the cylinder 20 to supply water support material to the interior of the cylinder 20, and a cylinder mounted to the cylinder 20 (20) relates to an injection molding machine comprising a heater (22) for heating and melting a water support material therein.

이때 상기 스크류기구(30)는 샤프트(32)와, 스크류날개(34)로 구성된다. 이러한 스크류기구(30)는 대략 전후 반으로 구획되어 전반부의 이송부(50)와, 후반부의 용융부(60)로 이루어지며, 스크류기구(30)의 후단에는 가압헤드부(70)가 구비된다. 상기 샤프트(32)의 전반부를 이루는 이송부(50)는 샤프트(32)의 외주면에 스크류날개(34)가 형성되어, 호퍼(40)를 통해 투입된 원료들은 이 이송부(50)에 의해 실린더(20)의 선단으로 이송된다. 그리고 상기 스크류기구(30) 후반부의 용융부(60)는 샤프트(32)의 외주면에 스크류날개(34)가 형성되지 않고 샤프트(32)만으로 이루어진다. 상기 원료들은 이러한 용융부(60)에서 완전히 용융되는데, 이때 용융부(60)를 이루는 샤프트(32)에는 스크류날개(34)가 형성되어 있지 않기 때문에 용융부(60)로 이송된 원료들의 혼합도는 샤프트에 스크류날개가 형성된 경우에 비해 상당히 낮다. 따라서 원료들은 이 용융부(60)에서 제대로 혼합되지 않고 단순히 용융만 되어 가압헤드부(70)로 이송된다.At this time, the screw mechanism 30 is composed of a shaft 32, a screw blade 34. The screw mechanism 30 is divided into approximately front and rear half and consists of a conveying part 50 of the first half, and a melting part 60 of the second half, and a pressure head 70 is provided at the rear end of the screw mechanism 30. The transfer part 50 forming the first half of the shaft 32 has a screw blade 34 formed on the outer circumferential surface of the shaft 32, and the raw materials introduced through the hopper 40 are transferred to the cylinder 20 by the transfer part 50. Is transported to the tip of the. The molten portion 60 of the latter half of the screw mechanism 30 is formed of only the shaft 32 without the screw blade 34 being formed on the outer circumferential surface of the shaft 32. The raw materials are completely melted in the melting part 60. At this time, the degree of mixing of the raw materials transferred to the melting part 60 is not formed in the shaft 32 constituting the melting part 60. Is considerably lower than the case where the screw blade is formed on the shaft. Therefore, the raw materials are not properly mixed in the melting part 60, but are simply melted and transferred to the pressure head part 70.

이와 같은 본 발명은 호퍼(40)에 펠렛형태의 수지원료와 2색 이상의 안료를 함께 담고 실린더(20)에 투입하면 수지원료가 녹기 시작하면서 수지원료와 각각의 안료가 혼합되어 수지원료가 착색된다. 그리고 각 안료들의 색상으로 착색된 수지들은 스크류기구(30)의 이송부(50)에 의해 용융부(60)로 이송되는데, 용융부(60)로 이송된 각 색상의 수지원료들이 제대로 혼합되지 못하여 각각의 수지색상을 그대로 보유한 상태로 가압헤드부(70)로 이송되어 사출금형(4)으로 주입된다. 따라서 사출성형된 제품에는 각각의 색상에 의한 자연스러운 무늬가 형성된다.In the present invention, when the hopper 40 contains a pellet-type water support material and two or more pigments together and enters the cylinder 20, the water support material starts to melt while the support material and each pigment are mixed to color the water support material. . The resins colored in the colors of the pigments are transferred to the melting part 60 by the conveying part 50 of the screw mechanism 30, and the water support materials of the respective colors transferred to the melting part 60 are not properly mixed. It is transferred to the pressure head 70 in the state of retaining the resin color as it is injected into the injection mold (4). Therefore, the injection molded product is formed with a natural pattern of each color.

한편, 상기 용융부(50)를 이루는 샤프트(32)의 외주면에는 원통형상의 슬립부재(66)가 결합되는데, 상기 슬립부재(66)는 도시되지 않은 베어링에 의해 샤프트(32)에 결합되거나 또는 샤프트(32)와 슬립부재(66) 사이에 윤활소재가 개재되어 샤프트(32)이 회전되어도 상기 슬립부재(66)가 샤프트(32)와 슬립되도록 구성된다. 따라서 슬립부재(66)가 샤프트(32)와 겉돌게 되므로 상기 각 색상의 수지원료들이 회전되는 샤프트(32)에 의해 혼합되는 것이 방지된다.On the other hand, a cylindrical slip member 66 is coupled to the outer circumferential surface of the shaft 32 constituting the melted portion 50, the slip member 66 is coupled to the shaft 32 by a bearing (not shown) or the shaft A lubricating material is interposed between the 32 and the slip member 66 so that the slip member 66 slips with the shaft 32 even when the shaft 32 is rotated. Therefore, since the slip member 66 faces the shaft 32, it is prevented that the water support materials of each color are mixed by the shaft 32 that is rotated.

이와 같은 본 발명은 상기 실린더 내에서 서로 다른 색상을 가지는 수지들이 완전히 혼합되지 않고 원래의 색상을 유지한 상태로 사출금형으로 주입되므로 서로 다른 색상에 의한 자연스러운 무늬가 형성된다. 이때 전술한 바와 같이 호퍼에 무색의 수지원료와 표현하고자 하는 안료들을 혼합하면 수지원료와 안료가 혼합되기 전에 각 안료들이 먼저 혼합될 확률이 높으므로 바람직하게는 원하는 색상으로 기 착색된 수지원료들을 사용한다.In the present invention, since the resins having different colors in the cylinder are not completely mixed and injected into the injection mold while maintaining the original colors, natural patterns of different colors are formed. In this case, when the colorless water support material and the pigment to be expressed are mixed in the hopper as described above, each pigment is first mixed before the water support material and the pigment are mixed. do.

이상에서와 같이 본 발명에 의하면, 구성이 간단하여 코스트가 저렴할 뿐만 아니라 다양한 색상에 의한 자연스러운 무늬를 가지는 외관이 미려한 사출품을 저렴한 코스트로 제작할 수 있는 새로운 구성의 사출기를 제공할 수 있다.As described above, according to the present invention, it is possible to provide an injection molding machine of a new configuration that can be manufactured at a low cost, as well as a simple structure and low cost, as well as a beautiful injection molded product having a natural pattern with various colors.

Claims (2)

일측에 런너(2)가 형성된 사출금형(4)과, 상기 런너(2)에 연결되는 실린더(20)와, 상기 실린더(20)의 내부에 장착되며 사프트(32)와 스크류날개(34)를 포함하여 이루어진 스크류기구(30)와, 상기 스크류기구(30)를 구동시키는 모터와, 상기 실린더(20)의 기단부에 장착되어 실린더(20)의 내부에 수지원료를 공급하도록 된 호퍼(40)와, 상기 실린더(20)에 장착되어 실린더(20) 내부의 수지원료를 가열, 용융시키는 히터(22)를 포함하는 사출기에 있어서, 상기 스크류기구(30)는 샤프트(32)의 전반부를 이루며 샤프트(32)의 외주면에 스크류날개(34)가 형성된 이송부(50)와, 샤프트(32)의 후반부를 이루며 샤프트(32)의 외주면에 스크류날개(34)가 형성되지 않은 용융부(60) 및 용융부(60) 후단의 가압헤드부(70)로 구성되어, 상기 이송부(50)에 의해 용융부(60)로 이송된 2색 이상의 원료들이 충분히 혼합되지 않은 상태로 상기 가압헤드부(70)에 공급되어 사출금형(4)으로 주입되도록 된 것을 특징으로 하는 사출기.An injection mold 4 having a runner 2 formed at one side thereof, a cylinder 20 connected to the runner 2, and a shaft 32 and a screw blade 34 mounted inside the cylinder 20. A screw mechanism 30 including the screw mechanism 30, a motor for driving the screw mechanism 30, a hopper 40 mounted on a proximal end of the cylinder 20 to supply a water support fee into the cylinder 20, and In the injection molding machine including a heater 22 mounted on the cylinder 20 to heat and melt the water support material in the cylinder 20, the screw mechanism 30 forms the first half of the shaft 32 and the shaft ( The conveying part 50 in which the screw blade 34 was formed in the outer peripheral surface of 32, and the melting part 60 and the melting part which form the latter half part of the shaft 32, and the screw blade 34 is not formed in the outer peripheral surface of the shaft 32 (60) A raw material of two or more colors composed of the pressurizing head portion 70 at the rear end and transferred to the melting portion 60 by the transfer portion 50. They are supplied to the pressure head portion 70 in a state that is not sufficiently mixed to be injected into the injection mold (4). 제1항에 있어서, 상기 용융부(60)를 이루는 샤프트(32)의 외주면에는 샤프트(32)와 슬립되는 원통형상의 슬립부재(66)가 구비되어, 상기 용융부(60)로 이송된 2색 이상의 원료가 회전되는 샤프트(32)에 의해 혼합되는 것이 방지되도록 된 것을 특징으로 하는 사출기.According to claim 1, wherein the outer peripheral surface of the shaft 32 constituting the melting portion 60 is provided with a cylindrical slip member 66 that slips with the shaft 32, the two colors transferred to the melting portion 60 Injection molding machine characterized in that the above raw material is prevented from being mixed by the rotating shaft (32).
KR10-2001-0075522A 2001-11-30 2001-11-30 a injection molder KR100469584B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101297105B1 (en) * 2011-09-30 2013-08-20 주식회사 마이크로필터 Extrudesion molding apparatus for carbon block
GB2557885A (en) * 2016-04-12 2018-07-04 Chen Zhanfeng Double-material mixing die assembly

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* Cited by examiner, † Cited by third party
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JPH01178931U (en) * 1988-06-06 1989-12-21
JP3284233B2 (en) * 1997-04-10 2002-05-20 東芝機械株式会社 Injection molding machine plasticizer
JP3393588B2 (en) * 1998-01-07 2003-04-07 ミサワホーム株式会社 Manufacturing method for injection molded products
JP2000158482A (en) * 1998-11-26 2000-06-13 Toshiba Mach Co Ltd Method for molding marble and apparatus for conducting the method
KR20030012442A (en) * 2001-08-01 2003-02-12 주식회사진화기계 Injection Molding Machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101297105B1 (en) * 2011-09-30 2013-08-20 주식회사 마이크로필터 Extrudesion molding apparatus for carbon block
GB2557885A (en) * 2016-04-12 2018-07-04 Chen Zhanfeng Double-material mixing die assembly

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