KR20070009372A - Extruder of raw materials mingled with a variety of waste resins - Google Patents

Extruder of raw materials mingled with a variety of waste resins Download PDF

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Publication number
KR20070009372A
KR20070009372A KR1020060012327A KR20060012327A KR20070009372A KR 20070009372 A KR20070009372 A KR 20070009372A KR 1020060012327 A KR1020060012327 A KR 1020060012327A KR 20060012327 A KR20060012327 A KR 20060012327A KR 20070009372 A KR20070009372 A KR 20070009372A
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KR
South Korea
Prior art keywords
extruder
waste material
screw shafts
resin waste
mixture
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KR1020060012327A
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Korean (ko)
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타케치요 코바야시
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가부시키가이샤 고한
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Publication of KR20070009372A publication Critical patent/KR20070009372A/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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • 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
    • B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/482—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs
    • B29B7/483—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws provided with screw parts in addition to other mixing parts, e.g. paddles, gears, discs the other mixing parts being discs perpendicular to the screw axis
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B29B7/489—Screws
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461—Combinations of dissimilar mixers
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7485—Systems, i.e. flow charts or diagrams; Plants with consecutive mixers, e.g. with premixing some of the components
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/82—Heating or cooling
    • B29B7/826—Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/41—Intermeshing counter-rotating screws
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)

Abstract

An extrusion-molding apparatus for various kinds of waste resins is provided to make new plastic goods by simultaneously melting a variety kinds of plastic waste resins. An extrusion-molding apparatus for various kinds of waste resins sends various kinds of waste resins from a first extruder(1) to a second extruder(2) and extrudes the waste resins through a dice installed at the lower part of the second extruder. The first extruder heats the various kinds of waste resins at 170~190‹C, melts the waste resins by mashing the waste resins with two screw shafts installed in parallel to each other in a cylinder(10), and sends to the second extruder. The second extruder forcibly feeds the waste resins with one or two screw shafts installed in a cylinder(30), gradually lowers the temperature, and extrudes the melted resin at from 128‹C to 160‹C to the dice.

Description

다종혼재 수지 폐재의 압출성형 장치{Extruder of Raw Materials Mingled with a Variety of Waste Resins}Extruder of Raw Materials Mingled with a Variety of Waste Resins

도 1은 본 발명에 따른 압출성형 장치의 전체의 개략을 도시하는 평면도, 1 is a plan view showing an outline of an entire extrusion apparatus according to the present invention;

도 2는 도 1의 압출성형 장치의 주요부의 수평단면도, Figure 2 is a horizontal cross-sectional view of the main part of the extrusion device of Figure 1,

도 3은 도 2의 주요부 확대도, 3 is an enlarged view of a main part of FIG. 2;

도 4는 도 2의 A-A선 단면도, 4 is a cross-sectional view taken along the line A-A of FIG.

도 5는 도 2의 B-B선 단면도, 5 is a cross-sectional view taken along the line B-B of FIG.

도 6은 도 2의 C-C선 단면도, 및6 is a cross-sectional view taken along the line C-C of FIG.

도 7은 도 1의 D-D선 단면도이다. FIG. 7 is a cross-sectional view taken along the line D-D of FIG. 1.

(부호의 설명)(Explanation of the sign)

1 제 1 압출기 2 제 2 압출기1 First Extruder 2 Second Extruder

3 연통로 4 냉각구역3 communication paths 4 cooling zones

5 다이스 10 실린더5 dice 10 cylinder

11a, 11b 스크루 축 14a, 14b 압궤부11a, 11b screw shaft 14a, 14b crush

15, 16, 17 압궤체 18 밴드 히터15, 16, 17 Clump 18 Band Heaters

19 냉매통로 20 호퍼19 Refrigerant Passage 20 Hopper

30 실린더 31a, 31b 스크루 축30 cylinders 31a, 31b screw shaft

36 냉각 핀 37 냉각기36 Cooling Fins 37 Chiller

40 성형품 40 Molded Products

본 발명은, 다종의 플라스틱 폐재(廢材)가 혼재해 있는 다종혼재 수지를 재이용하여, 압출성형으로 유용한 플라스틱 제품을 성형하는 다종혼재 수지 폐재의 압출성형 장치에 관한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for extruding multi-mixture resin waste materials, which recycles multi-mixture resins in which a variety of plastic waste materials are mixed to form plastic products useful for extrusion.

일반 가정, 또는 산업 폐기물로서 배출되는 합성 수지를 주체로 하는 대량의 폐재는, 폴리염화비닐, 폴리에틸렌, 폴리프로필렌, 나일론, 폴리스티렌, 폴리에틸렌 프탈레이트, 폴리에스테르, 우레탄, 에폭시, 페놀 등의 열가소성 또는 열경화성의 여러 합성 수지, 또는 이것들의 공중합 수지, 및, 유기 저분자물 및 무기물이 혼재해 있다. 그런데 종래 이와 같은 다종혼재 수지 폐재는, 각 재료마다 용융온도가 다르므로 사출성형기에 공급하여 플라스틱 제품을 재성형하는 것은 곤란했다. 따라서 재료마다 분별하지 않으면 리사이클은 할 수 없는 것이었다. 그러나 분별을 위해서는 막대한 코스트와 고도한 분리기술이 요구되는데다 완전한 분리는 곤란했기 때문에, 종래에는 처분장에 투기되는 비율이 컷고, 이 때문에 환경 파괴의 중대한 요인이 되는 것이었다. A large amount of waste materials mainly composed of synthetic resins discharged as general household or industrial wastes are thermoplastic or thermosetting materials such as polyvinyl chloride, polyethylene, polypropylene, nylon, polystyrene, polyethylene phthalate, polyester, urethane, epoxy, and phenol. Various synthetic resins, or copolymerized resins thereof, and organic low molecular weight and inorganic substances are mixed. By the way, since such a mixed resin waste material has a different melting temperature for each material, it has been difficult to supply the injection molding machine to re-form plastic products. Therefore, it was not possible to recycle it unless it was classified for each material. However, the fractionation required enormous cost and advanced separation technology, and the complete separation was difficult. Therefore, the rate of dumping at the disposal site is conventionally reduced, which is a significant factor of environmental destruction.

한편, 하기 특허문헌 1~3은 합성 수지에 목분을 혼입함으로써 나무의 특질을 갖는 목질 분쇄물 혼입 수지 성형품의 제조방법을 개시하는 것이며, 하기 특허문헌 4는 각각 스크루 축을 구비한 2개의 압출기를 직렬로 접속하고, 제 1 압출기에 의해 수지 펠릿을 반용융상태까지 가열하고, 제 2 압출기로 그 수지를 완전하게 용융 혼련하는 벤트식 2단 압출 장치를 개시한 것이다. On the other hand, the following Patent Documents 1 to 3 discloses a method for producing a wood-pulverized product mixed resin molded article having wood characteristics by incorporating wood powder into a synthetic resin, and Patent Document 4 below has two extruders each having a screw shaft in series. And a vented two-stage extrusion device in which the resin pellets are heated to a semi-melt state by a first extruder, and the resin is melt-kneaded completely by a second extruder.

[특허문헌 1] 일본 특개평11-2913l9호 공보 [Patent Document 1] Japanese Patent Application Laid-Open No. 11-2913l9

[특허문헌 2] 일본 특개2002-79567호 공보 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-79567

[특허문헌 3] 일본 특개2002-210802호 공보 [Patent Document 3] Japanese Patent Application Laid-Open No. 2002-210802

[특허문헌 4] 일본 특공평7-47293호 공보 [Patent Document 4] Japanese Patent Application Laid-Open No. 7-47293

그런데, 상기와 같은 다종혼재 수지 폐재를 원료로 하여 상기 종래의 압출장치에 의해 성형하려면, 특히 3종류 이상의 합성 수지가 혼재하는 다종혼재 수지 폐재에서는, 다이스로부터 소위 「내용물」이 압출되는 것과 같은 상태가 되어, 필요한 형상으로 성형할 수 없고, 가령 할 수 있다고 해도 표면질감이 요철 형상이어서 제품가치가 없는 것으로 될 수밖에 없는 상황이었다. By the way, in order to shape | mold by the said conventional extrusion apparatus using the above-mentioned multi-material mixed resin waste material as a raw material, especially in the multi-mixed resin waste material in which three or more types of synthetic resins are mixed, the so-called "content" is extruded from dice | dies. Even if it could not be molded into the required shape, for example, the surface texture was uneven, the product value had no value.

그래서 본 발명은, 종래의 압출성형 장치로는 다종혼재 수지 폐재를 압출성형 하는 것이 곤란한 원인으로서, 원료의 분쇄 혼련이 충분하지 않은 것, 및, 온도설정, 온도관리가 적절하지 않다는 것에 착안하여, 이것들을 개선함으로써, 3종류 이상의 합성 수지가 혼재하는 다종혼재 수지 폐재로도 압출성형을 가능하게 하여, 물성이 우수한 가치있는 플라스틱 제품을 성형할 수 있게 하는 것이다. Therefore, the present invention focuses on the fact that it is difficult to extrude multiple mixed resin waste materials by conventional extrusion apparatuses, and that the pulverization and kneading of raw materials is not sufficient, and that temperature setting and temperature management are not appropriate. By improving these, extrusion molding is possible also with the multi-material mixed resin waste material in which three or more types of synthetic resins are mixed, and it is possible to shape a valuable plastic product excellent in physical properties.

그 때문에 청구항 1에 기재한 발명은, 다종의 플라스틱 폐재가 혼재해 있는 다종혼재 수지 폐재를 제 1 압출기로부터 제 2 압출기로 보내고, 이 제 2 압출기의 하류에 설치된 다이스로부터 압출함으로써 소기의 성형품을 제조하는 다종혼재 수지 폐재의 압출성형 장치로서, 제 1 압출기는 다종혼재 수지 폐재를 170~190℃로 가열함과 동시에 실린더내에 평행하게 설치된 2개의 스크루 축에 의해 이 다종혼재 수지 폐재를 이겨 부숨으로써 이 다종혼재 수지 폐재를 완전 용융하여 제 2 압출기로 보내고, 제 2 압출기는 실린더 내에 설치된 1개 또는 2개의 스크루 축에 의해 이 용융 수지를 압송함과 동시에 점차로 온도를 하강시켜, 128~160℃에서 이 용융 수지를 다이스로부터 압출하도록 한 것을 특징으로 한다. Therefore, the invention described in claim 1 manufactures a desired molded article by sending a mixed resin mixture containing a plurality of plastic wastes from a first extruder to a second extruder and extruding from a die provided downstream of the second extruder. An apparatus for extruding multi-mixture resin waste material, wherein the first extruder heats the multi-mixture resin waste material to 170 to 190 ° C and overcomes the multi-mixture resin waste material by defeating the multi-mixture resin waste material by two screw shafts arranged in parallel in the cylinder. The multi-mixed resin waste material is completely melted and sent to the second extruder, and the second extruder presses the molten resin with one or two screw shafts installed in the cylinder and gradually lowers the temperature. It is characterized by extruding molten resin from a die.

또, 청구항 2에 기재된 발명은 상기 압출성형 장치에 있어서, 제 1 압출기의 2개의 스크루 축은, 나사 산의 피치를 하류로 감에 따라 점차 작아지도록 형성함과 동시에, 양 스크루 축의 길이 방향 대략 중간부에 외주면이 편심 원주면 형상으로 형성된 복수의 압궤체(壓潰體)를 양측에 번갈아 단(段) 형상으로 돌출하는 형상으로 형성하고, 양 스크루 축의 이 압궤체 사이에 협착 됨으로써 다종혼재 수지 폐재가 이겨 파쇄되도록 한 것을 특징으로 한다. In addition, the invention according to claim 2 is characterized in that, in the extrusion apparatus, the two screw shafts of the first extruder are formed so as to gradually decrease as the pitch of the screw thread is moved downstream, and substantially the middle part in the longitudinal direction of both screw shafts. The plurality of crush bodies formed in the shape of an eccentric circumferential surface in the form of an eccentric circumferential surface are alternately protruded on both sides in a step shape, and are squeezed between the crush bodies of both screw shafts, thereby producing a multi-mixed resin waste material. Characterized by being beaten.

또, 청구항 3에 기재된 발명은 상기 압출성형 장치에 있어서, 냉각매체를 유통시킴으로써 냉각되는 냉각 핀을 구비한 냉각기를 제 2 압출기와 다이스 사이의 재료 압출통로의 중심부에 설치하고, 용융 수지를 이 냉각 핀에 접촉시키도록 한 것을 특징으로 한다. According to the invention of claim 3, in the extrusion apparatus, a cooler having cooling fins cooled by circulating the cooling medium is provided at the center of the material extrusion passage between the second extruder and the die, and the molten resin is cooled. It is characterized in that the contact with the pin.

(발명을 실시하기 위한 최량의 형태) (The best form to carry out invention)

도 1은 본 발명에 따른 압출성형 장치의 개략을 도시하는 평면도이며, 1은 제 1 압출기, 2는 제 2 압출기, 3은 이 제 1 압출기의 하류와 제 2 압출기의 상류를 접속하고 있는 연통로, 4는 제 2 압출기의 하류에 설치된 냉각구역, 5는 더욱 그 하류에 설치된 다이스이다. BRIEF DESCRIPTION OF THE DRAWINGS The top view which shows the outline of the extrusion apparatus which concerns on this invention, 1 is a 1st extruder, 2 is a 2nd extruder, 3 is a communication path which connects downstream of this 1st extruder, and upstream of a 2nd extruder. , 4 is a cooling zone installed downstream of the second extruder, 5 is a die installed further downstream thereof.

제 1 압출기(1)는, 도 2에 수평 단면 평면도, 도 3에 그 확대도, 도 4에 A-A선 단면도, 도 5에 B-B선 단면도를 도시한 바와 같이, 수평으로 지지된 원기둥 형상의 실린더(10) 내에 2개의 스크루 축(11a, 11b)이 접근상태에서 평행하게 설치되고, 이 각각의 스크루 축의 일단을 기어박스(12)를 통하여 모터(13)에 연계하고, 이 모터를 구동함으로써 이 각각의 스크루 축이 회전 구동되도록 구성되어 있다. 이 각각의 스크루 축(11a, 11b)은, 외주에 사다리꼴 형상의 나사 산이 2줄로 형성되고, 그 일방의 스크루 축(11a)은 오른 나사, 타방의 스크루 축(11b)은 왼 나사이고, 그 나사 산 끼리가 서로 맞물림 상태로 되는 직전까지 접근하도록 양 스크루 축(11a, 11b)을 평행하게 지지하고 있다. The 1st extruder 1 is a cylindrical cylinder supported horizontally, as shown in a horizontal sectional plan view in FIG. 2, its enlarged view in FIG. 3, AA sectional view in FIG. 4, and BB sectional view in FIG. 10) two screw shafts 11a and 11b are installed in parallel in an approaching state, and one end of each of these screw shafts is connected to the motor 13 via the gearbox 12, and each of these is driven by driving the motor. Screw shaft is configured to be driven to rotate. Each of these screw shafts 11a and 11b is formed with two rows of trapezoidal threads on the outer periphery, one of the screw shafts 11a is a right screw, and the other screw shaft 11b is a left screw. Both screw shafts 11a and 11b are supported in parallel so as to approach the mountains just before they are engaged with each other.

또, 이 각각의 스크루 축(11a, 11b)의 길이 방향 대략 중간부에 압궤부(14a, 14b)를 설치하는 동시에, 그 상류 및 하류에 각각 형성된 나사 산은 그 피치가 모두 하류로 감에 따라 점차로 작아지도록 형성되어 있다. 이 압궤부(14a, 14b)는 도 3, 도 5에 확대하여 도시한 바와 같이, 외주면이 편심 원주면 형상으로 형성된 3개의 압궤체(15, 16, 17)를 이 각각의 스크루 축의 양측에 번갈아 단계 형상으로 돌출하도록 형성한 것이다. Moreover, while providing the crush parts 14a, 14b in the substantially middle part of the longitudinal direction of each of these screw shafts 11a, 11b, the screw thread formed in the upstream and downstream, respectively, is gradually gradually going as the pitch goes downstream. It is formed so that it may become small. 3 and 5, the crush portions 14a and 14b alternately replace three crush bodies 15, 16, and 17 having an outer circumferential surface in the form of an eccentric circumferential surface on both sides of the respective screw shafts. It is formed to protrude into a step shape.

18은 실린더(10)의 외주에 설치된 밴드 히터, 19는 물 등의 냉각매체를 통과시키기 위해서 이 실린더(10)의 벽에 형성된 온도조절용의 냉매 통로이다. 또, 20 은 실린더(10)의 베이스부 상면에 설치된 원료투입용의 호퍼, 21은 실린더(10)의 길이 방향 대략 중간부 상면에 형성된 가스빼기 구멍이다. 18 is a band heater provided on the outer periphery of the cylinder 10, 19 is a refrigerant passage for temperature regulation formed in the wall of the cylinder 10 so as to pass a cooling medium such as water. 20 is a hopper for inputting raw materials provided on the upper surface of the base portion of the cylinder 10, and 21 is a gas bleed hole formed in the upper surface of the substantially middle portion of the cylinder 10 in the longitudinal direction.

제 2 압출기(2)는 수평으로 지지된 실린더(30)내에 2개의 스크루 축(31a, 31b)이 접근상태에서 평행하게 설치되고, 각각의 스크루 축의 일단을 기어박스(32)를 통하여 모터(33)에 연계하고, 이 모터를 구동함으로써 이 각각의 스크루 축이 회전구동되도록 구성하고 있다. 이 각각의 스크루 축(31a, 31b)은 도 6에도 도시되는 바와 같이, 상기 스크루 축(11a, 11b)과 동일하게 외주에 사다리꼴 형상의 나사 산이 형성된 것이지만, 상기 스크루 축(11a, 11b)과 같은 압궤부는 형성되어 있지 않다. 34는 실린더(30)의 기단부 근처 상면에 형성된 가스빼기 구멍, 35는 물 등의 냉각매체를 통과시키기 위해서 이 실린더(30)의 벽에 형성된 냉매통로이다. 이 제 2 압출기(2)의 하류에서 다이스(5)와의 사이에 설치된 냉각구역(4)에는, 도 7에 도시한 바와 같이, 냉각수를 유통시킴으로써 냉각되는 냉각 핀(36)을 구비한 냉각기(37)가 그 재료 압출통로의 중심부에 위치하도록 설치된다. 또한, 38은 냉각기(37)를 재료 압출통로의 중심부에 고정하기 위한 지지 로드이다. 또, 39는 다이스(5)의 외부에 설치된 추출 테이블이다. The second extruder 2 has two screw shafts 31a and 31b installed in parallel in a horizontally supported cylinder 30 in an approaching state, and one end of each screw shaft is connected to the motor 33 through the gearbox 32. ), And each of these screw shafts is rotated by driving this motor. As shown in Fig. 6, each of the screw shafts 31a and 31b has a trapezoidal thread formed on its outer periphery in the same way as the screw shafts 11a and 11b, but the screw shafts 11a and 11b are the same as the screw shafts 11a and 11b. The crushed part is not formed. 34 denotes a gas bleed hole formed in the upper surface near the proximal end of the cylinder 30, and 35 denotes a refrigerant passage formed in the wall of the cylinder 30 to allow cooling medium such as water to pass therethrough. In the cooling zone 4 provided between the die 5 and the downstream of the second extruder 2, as shown in FIG. ) Is installed at the center of the material extrusion passage. 38 is a supporting rod for fixing the cooler 37 to the center of the material extrusion passage. 39 is an extraction table provided in the exterior of the dice 5.

이와 같이 구성한 압출성형 장치에서는, 일반 가정으로부터 배출된 그릇 형상, 판 형상, 시트 형상, 봉 형상 등의 크고 작은 여러 형상으로서 여러 합성 수지 재료가 혼재해 있는 합성 수지 폐재를 분쇄하고, 이것을 분별하지 않고 공지의 조립기(도시 생략)에 통과시킴으로써, 직경 수 밀리미터~수 센티미터의 펠릿 형상으로 가공하고, 이 펠릿 형상의 다종혼재 수지 폐재를 호퍼(20)에 투입한다. 그리 고, 스크루 축(11a, 11b)을 도 4에 화살표로 나타낸 바와 같이 서로 반대 방향으로 회전시킴과 동시에, 밴드 히터(18)를 통전(通電)하여 실린더(10) 내를 가열함으로써 이 펠릿 형상의 다종혼재 수지 폐재를 170~190℃로 가열한다. 이때, 양 스크루 축(11a, 11b)의 나사 산이 서로 맞물림 상태 직전까지 접근해 있고, 게다가 나사 산은 피치가 하류로 감에 따라 점차로 작아지도록 형성되어 있으므로, 이 다종혼재 수지 폐재가 양 스크루 축의 나사 산 사이에 끼워져서 하류로 압송됨에 따라서 이 다종혼재 수지 폐재에 점차로 강한 마찰력이 작용하여 이겨 부서진다. 이 때문에 이겨 부서질 때에 발생하는 마찰열도 더해져서 이 다종혼재 수지 폐재가 용융되어 혼련(믹싱)된다. 또한, 냉매통로(19)에 물 등의 냉각매체를 통과시킴으로써 이때의 이 다종혼재 수지 폐재의 가열온도가 조정된다. In the extrusion apparatus configured as described above, the synthetic resin waste material in which various synthetic resin materials are mixed in various shapes, such as a bowl shape, a plate shape, a sheet shape, a rod shape, and the like, discharged from a general household, is pulverized, and not classified. By passing through a well-known granulator (not shown), it processes into the pellet shape of several millimeters-several centimeters in diameter, and this pellet-shaped multi-mixture resin waste material is thrown into the hopper 20. Then, the screw shafts 11a and 11b are rotated in opposite directions as shown by the arrows in Fig. 4, while the band heater 18 is energized to heat the inside of the cylinder 10 to form this pellet. Multi-material mixed resin waste material is heated to 170 ~ 190 ℃. At this time, since the screw threads of both screw shafts 11a and 11b are approached just before the engagement state, and the screw threads are formed so that the pitch gradually decreases as the pitch goes downstream, this mixed resin waste material is screw threads of both screw shafts. As it is sandwiched between and transported downstream, a gradually strong frictional force acts on this multi-mixture resin waste material and breaks. For this reason, the frictional heat which generate | occur | produces when it overcomes is added, and this mixed resin waste material is melted and kneaded (mixed). In addition, by passing a cooling medium such as water through the refrigerant passage 19, the heating temperature of this mixed resin mixture waste material at this time is adjusted.

또, 이 다종혼재 수지 폐재가 양 스크루 축(11a, 11b)의 길이 방향 대략 중간부에 설치된 압궤부(14a, 14b)에 압송되어 왔을 때, 압궤체(15, 16, 17)에 의해 이 다종혼재 수지 폐재에 압궤력과 전단력이 번갈아 가해져 이 다종혼재 수지 폐재는 더욱 잘게 확실하게 이겨 부서진다. 그 후에 이 다종혼재 수지 폐재는 양 스크루 축(11a, 11b)의 피치가 점차로 더욱 작아지는 양 나사 산 사이에서 혼련(믹싱)되고, 이 다종혼재 수지 폐재에 구석구석 열이 침투함으로써 완전한 겔 상태가 된다. 이렇게 하여 다종혼재 수지 폐재를 구성하는 여러 합성 수지는 완전한 용융상태로 되어서 혼련된다. 그때 이 용융 수지의 온도는 이 다종혼재 수지 폐재를 구성하는 여러의 합성 수지의 용융온도보다 조금 높은 170~190℃가 되도록 한다. 이렇게 해서 호퍼(20)에 투입된 다종혼재 수지 폐재는 제 1 압출기(1)를 통과함으로 써 완전한 겔 상태로 되어서 연통로(3)를 통과하여 제 2 압출기(2)로 압송된다. Moreover, when this multi-material mixed resin waste material is conveyed to the crush parts 14a and 14b provided in the substantially middle part of the longitudinal direction of both screw shafts 11a and 11b, it is this multi-type by the crush body 15, 16, 17. The crushing and shearing forces are alternately applied to the mixed resin waste material so that the multi-material mixed resin waste material is more finely and surely beaten and broken. Thereafter, this mixed resin waste material is kneaded (mixed) between both threads where the pitches of both screw shafts 11a and 11b become smaller gradually, and heat is infiltrated into the mixed resin waste material to obtain a complete gel state. do. In this way, the various synthetic resins constituting the multi-material mixed resin waste material are kneaded in a completely molten state. At this time, the temperature of this molten resin is 170-190 degreeC which is slightly higher than the melting temperature of the various synthetic resins which comprise this mixed resin mixed material. In this way, the multi-mixture resin waste material introduced into the hopper 20 is made into a complete gel state by passing through the first extruder 1, and is passed through the communication path 3 to be fed to the second extruder 2.

한편, 제 2 압출기(2)는 제 1 압출기(1)로부터 압송되어 온 용융 수지를 스크루 축(31a, 31b)을 회전시킴으로써 더욱 혼련하면서 압송하고, 냉매통로(35)에 냉각수를 통과시킴으로써 이 용융 수지를 서서히 냉각한다. 그리고 냉각구역(4)에서 이 용융 수지를 냉각기(37)의 냉각 핀(36)에 접촉시켜, 이 용융 수지를 128~160℃로 냉각하고, 이 용융 수지가 이 온도에서 다이스(5)로부터 압출되도록 한다. 이것에 의해 판 형상, 봉 형상 등의 필요한 단면 형상의 압출성형품(40)이 테이블(39) 위에 추출된다. On the other hand, the 2nd extruder 2 presses and conveys the molten resin conveyed from the 1st extruder 1 by kneading | mixing by rotating the screw shafts 31a and 31b, and passing this cooling water through the coolant passage 35, and melt | dissolving this melt | dissolution. Cool the resin slowly. The molten resin is brought into contact with the cooling fins 36 of the cooler 37 in the cooling zone 4 to cool the molten resin to 128 to 160 ° C, and the molten resin is extruded from the die 5 at this temperature. Be sure to As a result, the extruded molded article 40 having a required cross-sectional shape such as a plate shape or a rod shape is extracted on the table 39.

이와 같이 본 발명의 압출성형 장치는, 제 1 압출기에서 다종혼재 수지 폐재를 170~190℃로 가열함과 동시에 이것을 하류로 감에 따라 점차로 피치를 점차로 작게 한 나사 산을 갖는 2개의 스크루 축에 의해 혼련함과 동시에, 이 다종혼재 수지 폐재를 압궤체 사이에 협착시킴으로써 이겨 부수고, 완전한 겔 상태로 용융시킨다. 이어서 제 2 압출기에서는 이 용융 수지를 128~160℃로 온도하강시켜서 다이스로부터 압출함으로써, 다종혼재 수지 폐재를 구성하는 여러 합성 수지를 혼연일체의 것으로 하여 플라스틱 제품으로 성형할 수 있다. 여기에서 제 1 압출기를 경과했을 때의 가열온도보다도 다이스로부터 압출할 때의 용융 수지의 온도를 낮아지도록 함으로써, 물성을 손상시키지 않아, 성형품의 형상이 안정되고, 표면 질감이 매끈매끈한 성형품을 성형할 수 있다. Thus, the extrusion apparatus of the present invention is provided by two screw shafts having threaded threads gradually lowering the pitch as the mixed resin mixture is heated to 170 to 190 ° C in the first extruder, while being downstream. At the same time as kneading, the multi-mixture resin waste material is crushed by squeezing between the crushed bodies and melted in a complete gel state. Subsequently, in this 2nd extruder, this molten resin is temperature-reduced to 128-160 degreeC, and is extruded from a die, and it can shape | mold the various synthetic resins which comprise a multi-material mixed-use resin waste material into a plastic product. Here, by lowering the temperature of the molten resin when extruding from the die than the heating temperature when the first extruder passes, the shape of the molded article is stabilized and the molded article having a smooth surface texture can be molded without impairing physical properties. Can be.

또한, 제 1 압출기에 있어서의 가열온도가 170℃ 미만에서는 다종혼재 수지 폐재를 완전하게 용융할 수는 없고, 제 1 압출기에 있어서의 가열온도가 190℃를 넘으면, 그을림이 생겨서 가스가 다량으로 발생하여 수지의 물성, 강도가 열화 되기 때문에, 제 1 압출기에서의 가열온도는 170~190℃로 해야한다. In addition, when the heating temperature in a 1st extruder is less than 170 degreeC, it cannot fully melt | melt a mixed resin mixed material, and when the heating temperature in a 1st extruder exceeds 190 degreeC, it will burn and generate a large amount of gas. Since the physical properties and strength of the resin deteriorate, the heating temperature in the first extruder should be 170 to 190 ° C.

또, 다이스로부터 압출할 때의 용융 수지의 온도는, 128℃보다도 낮게 하면 용융 수지의 유동성이 손상되어 제 2 압출기내의 압송 압력이 매우 상승함과 동시에 성형 속도도 극단적으로 늦어지므로 바람직하지 못하다. 또, 다이스로부터 압출할 때의 용융 수지의 온도가 160℃보다도 높으면, 형상유지성이 없어져 소요 형상으로 성형하는 것이 곤란하게 된다. 이 때문에 다이스로부터 압출할 때의 용융 수지의 온도는, 128~160℃가 아니면 안 된다. Moreover, when the temperature of molten resin at the time of extrusion from die | dye is lower than 128 degreeC, the fluidity | liquidity of molten resin will be impaired, the pressurization pressure in a 2nd extruder will raise very much, and the shaping | molding speed will become extremely undesirably unfavorable. Moreover, when the temperature of molten resin at the time of extrusion from die | dye is higher than 160 degreeC, shape retention will disappear and it will become difficult to shape | mold to a required shape. For this reason, the temperature of molten resin at the time of extrusion from die | dye must be 128-160 degreeC.

또, 이 실시형태에 나타낸 바와 같이 2개의 스크루 축(31a, 31b)을 갖는 제 2 압출기(2)는, 그 냉각과정에서도 용융 수지를 양 스크루 축 사이에서 혼련시키므로, 일단 융합한 종류가 다른 합성 수지를 분리시킬 우려 없이 성형할 수 있는 온도까지 서서히 냉각하여 다이스에 압송할 수 있다. 이 때문에 제 2 압출기(2)는 이 실시형태에서 나타낸 바와 같이 2개의 스크루 축을 갖는 것이 바람직하지만, 스크루 축이 1개뿐인 압출기에서는, 합성 수지를 분리시키지 않도록 하기 위한 첨가제를 사용함으로써 대처하는 것이 가능하게 된다. Moreover, as shown in this embodiment, since the 2nd extruder 2 which has two screw shafts 31a and 31b knead | mixes molten resin between both screw shafts also in the cooling process, it is the synthetic | combination of the kind from which the kind fuse | blended once The resin can be gradually cooled to a temperature at which it can be molded without being separated from the resin and then fed to the die. For this reason, although it is preferable that the 2nd extruder 2 has two screw shafts as shown in this embodiment, in the extruder which has only one screw shaft, it is possible to cope by using the additive for not isolate | separating a synthetic resin. Done.

또, 냉각 핀(36)을 구비한 냉각기(37)를 제 2 압출기와 다이스 사이의 재료 압출통로의 중심부에 설치하고, 용융 수지를 이 냉각 핀에 접촉시킴으로써 이 용융 수지의 중심부가 냉각되어, 외주부와의 온도차를 없앨 수 있기 때문에, 용융 수지의 유동성이 중심부와 외주부에서 크게 차이나는 것과 같은 일이 없게 되어 이 용융 수지를 다이스로부터 균일하게 압출할 수 있다. 이 때문에 분리되기 쉬운 다종 혼재 수지 폐재를 원료로 하면서도, 원기둥 형상, 판 형상, 또는 중공 통 형상 등의 복잡한 단면형상을 가진 플라스틱 제품을 용이하게 성형할 수 있다. In addition, a cooler 37 having a cooling fin 36 is provided at the center of the material extrusion passage between the second extruder and the die, and the molten resin is brought into contact with the cooling fin to cool the central portion of the molten resin. Since the difference in temperature with and can be eliminated, the fluidity of the molten resin does not differ greatly between the center portion and the outer peripheral portion, and the molten resin can be uniformly extruded from the die. For this reason, the plastic product which has a complicated cross-sectional shape, such as a cylindrical shape, a plate shape, or a hollow cylinder shape, can be easily shape | molded, using the mixed resin waste material which is easy to separate as a raw material.

또한, 일반가정으로부터 배출된 다종혼재 수지 폐재의 성분을 분석한 결과, 폴리프로필렌이 31중량%, 폴리에틸렌이 47중량%, 폴리스티렌이 11중량%, 폴리염화비닐이 1중량%, 폴리에틸렌테레프탈레이트가 1중량%, 나일론이 2중량%, 유기 저분자물 3중량%, 무기물 4중량% 이었다. 본 발명에 따르면 이 예와 같이 3종류 이상의 합성 수지가 혼재하는 다종혼재 수지 폐재라도 분별하지 않고 그대로 새로운 플라스틱 제품의 원료로서 리사이클 할 수 있다. In addition, as a result of analyzing the components of the multi-mixed resin waste material discharged from general households, 31% by weight of polypropylene, 47% by weight of polyethylene, 11% by weight of polystyrene, 1% by weight of polyvinyl chloride, and 1 of polyethylene terephthalate It was 2 weight% of nylon, 3 weight% of organic low molecular weight, and 4 weight% of inorganic material. According to the present invention, even in the case of multiple mixed resin waste materials in which three or more kinds of synthetic resins are mixed as in this example, it can be recycled as raw materials for new plastic products without being separated.

또, 상기한 바와 같이 펠릿 형상으로 가공한 다종혼재 수지 폐재를 예를 들면 70중량%에 대하여, 마찬가지로 조립기에 의해 펠릿 형상으로 가공한 목재를 30중량% 혼합한 것을 원료로 함으로써, 건축자재로서도 사용할 수 있는 양질의 목질계 합성 수지판 등을 성형하는 것이 가능하다. In addition, it is possible to use as a building material by mixing 30% by weight of wood processed into pellets with a granulator as a raw material with respect to 70% by weight, for example, 70% by weight of the multi-material mixed resin waste material processed into pellets as described above. It is possible to mold a high-quality wood-based synthetic resin plate or the like.

또, 헌 종이, 섬유 등의 셀룰로오스계 재료를 이 다종혼재 수지 폐재와 적당하게 배분하여 혼합함으로써도, 용도에 맞는 물성의 플라스틱 제품을 성형할 수 있다. 또 그 성형시에, 필요에 따라서 강화제, 안정제, 내광제, 난연제 등을 첨가해도 좋다. In addition, by appropriately distributing and mixing cellulose-based materials such as old paper and fibers with this multi-material mixed resin waste material, a plastic product of a physical property suitable for the use can be formed. In addition, at the time of shaping | molding, you may add a strengthening agent, a stabilizer, a light resistant agent, a flame retardant, etc. as needed.

다종의 플라스틱 폐재가 혼재해 있는 다종혼재 수지 폐재를 그대로 원료로 하여, 새로운 플라스틱 제품을 성형할 수 있으므로, 일반 가정, 또는 산업 폐기물로서 다량으로 배출되는 플라스틱 폐재의 리사이클을 촉진할 수 있다. Since a new plastic product can be molded by using the mixed resin mixture of mixed plastics as it is, as a raw material, it is possible to promote recycling of plastic wastes discharged in large quantities as general household or industrial wastes.

Claims (3)

다종의 플라스틱 폐재가 혼재해 있는 다종혼재 수지 폐재를 제 1 압출기로부터 제 2 압출기로 보내고, 이 제 2 압출기의 하류에 설치된 다이스로부터 압출함으로써 소기의 성형품을 제조하는 다종혼재 수지 폐재의 압출성형 장치로서, 제 1 압출기는 다종혼재 수지 폐재를 170~190℃로 가열함과 동시에 실린더내에 평행하게 설치된 2개의 스크루 축에 의해 이 다종혼재 수지 폐재를 이겨 부숨으로써 이 다종혼재 수지 폐재를 완전 용융하여 제 2 압출기로 보내고, 제 2 압출기는 실린더내에 설치된 1개 또는 2개의 스크루 축에 의해 이 용융 수지를 압송하는 동시에 점차로 온도 하강시키고, 128~160℃에서 이 용융 수지를 다이스로부터 압출하도록 한 것을 특징으로 하는 다종혼재 수지 폐재의 압출성형 장치. As an extrusion molding apparatus for a multi-mixed resin waste material, in which a multi-mixed resin waste material in which multiple plastic waste materials are mixed is sent from a first extruder to a second extruder, and extruded from a die provided downstream of the second extruder to produce a desired molded article. The first extruder heats the multi-mixture resin waste material to 170 to 190 ° C and overcomes the multi-mixture resin waste material by defeating and destroying the multi-mixture resin waste material by two screw shafts installed in parallel in the cylinder. It is sent to an extruder, and the 2nd extruder presses this molten resin by one or two screw shafts installed in the cylinder, and gradually lowers the temperature, and extrudes the molten resin from the die at 128 to 160 캜. Extrusion apparatus for multi-mixed resin waste material. 제 1 항에 있어서, 제 1 압출기의 2개의 스크루 축은, 나사 산의 피치를 하류로 감에 따라 점차로 작아지도록 형성하는 동시에, 양 스크루 축의 길이 방향 대략 중간부에 외주면이 편심 원주면 형상으로 형성된 복수의 압궤체를 양측에 번갈아 단 형상으로 돌출하는 형상으로 형성하고, 양 스크루 축의 이 압궤체 사이에 협착됨으로써 다종혼재 수지 폐재가 이겨 부서지도록 한 것을 특징으로 하는 다종혼재 수지 폐재의 압출성형 장치. The plurality of screw shafts of claim 1, wherein the two screw shafts of the first extruder are formed to gradually become smaller as the pitch of the screw thread is moved downstream, and a plurality of outer circumferential surfaces are formed in an eccentric circumferential surface shape in the substantially middle portion in the longitudinal direction of both screw shafts. An extrusion molding apparatus for a multi-mixture mixed resin waste material, wherein the crushed bodies of the multi-mixture mixed resin waste material are formed so as to alternately protrude in a step shape on both sides, and are squeezed between the crushed bodies of both screw shafts. 제 1 항 또는 제 2 항에 있어서, 냉각매체를 유통시킴으로써 냉각되는 냉각 핀을 구비한 냉각기를 제 2 압출기와 다이스 사이의 재료 압출통로의 중심부에 설치하고, 용융 수지를 이 냉각 핀에 접촉시키도록 한 것을 특징으로 하는 다종혼재 수지 폐재의 압출성형 장치. A cooler having cooling fins cooled by circulating the cooling medium is provided in the center of the material extrusion passage between the second extruder and the die, and the molten resin is brought into contact with the cooling fin. An extrusion molding apparatus for a multi-mixture mixed resin waste material, characterized in that one.
KR1020060012327A 2005-07-15 2006-02-09 Extruder of raw materials mingled with a variety of waste resins KR20070009372A (en)

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KR102268420B1 (en) * 2020-09-03 2021-06-24 그린폴리텍(주) Deck manufacturing apparatus and manufacturing method and manufacturing method using waste vinyl

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