JP2004500996A - Spiral pipe using waste plastic and molding device therefor - Google Patents

Spiral pipe using waste plastic and molding device therefor Download PDF

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Publication number
JP2004500996A
JP2004500996A JP2000612109A JP2000612109A JP2004500996A JP 2004500996 A JP2004500996 A JP 2004500996A JP 2000612109 A JP2000612109 A JP 2000612109A JP 2000612109 A JP2000612109 A JP 2000612109A JP 2004500996 A JP2004500996 A JP 2004500996A
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Prior art keywords
profile
spiral pipe
adhesive resin
extruder
waste plastic
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JP2000612109A
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Japanese (ja)
Inventor
キェ　ヒュンサン
ウー　ミョンナム
チョイ　スンウン
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パイパックス　エンヴィロンメンタル　エンジニアリング　インコーポレーティッド
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Priority claimed from KR1019990013692A external-priority patent/KR19990064617A/en
Application filed by パイパックス　エンヴィロンメンタル　エンジニアリング　インコーポレーティッド filed Critical パイパックス　エンヴィロンメンタル　エンジニアリング　インコーポレーティッド
Priority claimed from KR1020000020179A external-priority patent/KR100352997B1/en
Publication of JP2004500996A publication Critical patent/JP2004500996A/en
Pending legal-status Critical Current

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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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5071—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and being composed by one single element
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
    • B29C53/8083—Improving bonding of wound materials or layers
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5085—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and comprising grooves, e.g. being E-shaped, H-shaped
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • 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
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the tape handling mechanisms, e.g. using vacuum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Sewage (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

本発明は廃プラスチックと農業副産物のわら、もみがらと、林業副産物のおがくず、木切れまたはフライアッシュなどの多様な充填材を原料として使用して圧出成形器で１８０〜２５０℃の加工温度で四角のプロファイルを有する溶融圧出成形を行い、プロファイルの一側あるいは両側で補助圧出器を通じて供給される樹脂及び接着樹脂によりワインダの外側でプロファイルと接着樹脂とが単一体をなすスパイラルパイプを成形させるが、溶融されていない内層及び溶融された外層プロファイルの外側面を包む接着樹脂層がＨビーム状に成形されることによって外圧に強くなって破損されなく、使いみちのなかった廃プラスチックを貴重な資源としてリサイクルできる効果がある。The present invention uses various fillers such as waste plastic and agricultural by-products such as straw, rice husk, and forestry by-products, sawdust, wood chips or fly ash as raw materials at an extrusion molding machine at a processing temperature of 180 to 250 ° C. Performs melt extrusion molding with a square profile, and forms a spiral pipe in which the profile and the adhesive resin form a single unit outside the winder with the resin and adhesive resin supplied through the auxiliary extruder on one or both sides of the profile However, since the adhesive resin layer wrapping the outer surface of the unmelted inner layer and the melted outer layer profile is formed into an H-beam shape, it is strengthened by external pressure and is not damaged. It has the effect of being recyclable as a resource.

Description

【０００１】
（技術分野）
本発明は下水管や排水管として使われるスパイラルパイプに係り、特に、廃プラスチックと農業副産物及び林業副産物またはフライアッシュのような充填材を溶融混練して四角のプロファイルを成形し、前記プロファイルを樹脂及び接着樹脂で包んで接着させるが、プロファイルの間の樹脂接着面がＨビーム状になるようにして外圧、衝撃及び荷重に強くなるように改良された廃プラスチックを用いたスパイラルパイプ及びその成形装置に関する。
【０００２】
（背景技術）
一般に、下水管や排水管として使われる管は、韓国特許出願第９３−１７６４０号公報に提案された”管及びその製造方法”で開示されたように、回転する多数の回転ローラに原資材を供給しつつ巻き取られるようにし、原資材の間の内、外側面に接着原料を供給しつつ前記ローラに接着させ、冷却水の噴射ノズルを通じて冷却水を噴射させることによりゲル状態の原資材接着原料を冷却させて形成したものであって、管の内、外部に凹凸のないＩ状接着構造をなす。
【０００３】
このような従来のスパイラルパイプの成形方法は、図１ないし図３に示したように、圧出器３から原料を供給しつつ真空冷却槽２０を通じて内部に四角状の空間が形成されるようにプロファイル２３を成形し、プロファイル２３がワインダ６を通過する過程で別の補助圧出成形器２１を通じて接着原料樹脂層２２を供給すれば、ローラ７によって圧着されつつスパイラルパイプ１０２を成形する方法として、図１に示したスパイラルパイプの成形装置１０１により行われる。
【０００４】
しかし、前記の既存の方法によれば、四角のプロファイル２３を成形するために真空冷却槽２０を通過し、既に成形されたプロファイル２３の接着のために補助圧出器２１を使用して前記プロファイル２３の一側面に接着樹脂を供給するが、これは冷却されたプロファイル２３と接着樹脂との温度偏差によって接着が正常に行われないだけでなく、プロファイル２３を接着する接着樹脂層２２が全体的にＩ状をなし、またプロファイル２３が中孔状の構造を有することによって外部から加わる圧力、荷重及び衝撃によりその接着部位が非常に弱くて容易に破断及び分離される恐れがあった。
さらに、下水管または排水管として使われるスパイラルパイプ１０１が外圧作用によって破断及び分離される場合には汚染水が土壌に染み込んで土壌及び地下水をひどく変質させるだけでなく地盤沈下の恐れなど深刻な問題があった。
【０００５】
（発明の開示）
本発明は前記のような全ての問題点を勘案して案出されたものであって、その目的は、廃プラスチックと農業副産物及び林業副産物またはフライアッシュのような充填材を溶融混練して四角のプロファイルを成形することによって産業廃棄物を貴重な資源としてリサイクルでき、プロファイルを樹脂及び接着樹脂で完全に包んで前記プロファイルの間の樹脂接着面をＨビーム状にすることによって外圧、衝撃及び荷重に強いスパイラルパイプ及びその成形装置を提供することである。
【０００６】
前記のような目的を達成するための本発明に係る廃プラスチックを用いたスパイラルパイプは、完全に溶融されていない内層及び溶融された外層よりなるプロファイルの外側面を包む接着樹脂層がＨビーム状にプロファイルを完全に包むように成形されたことを特徴とする。
この時、前記スパイラルパイプの剛性係数は７〜１５Ｋｇｆ／ｃｍ２以内に成形され、前記プロファイルは内層及び外層よりなり、もみがら、わらのような農業副産物、おがくず、木切れのような林業副産物またはフライアッシュなどの多様な充填材と、溶融混練された複合材料とより成形されたことを特徴とする。
【０００７】
また、前記のような目的を達成するための本発明に係る廃プラスチックを用いたスパイラルパイプの成形装置は、各種廃プラスチック５０〜１００重量部に充填材０〜５０重量部を溶融温度１８０〜２５０℃の範囲で溶融混練した後、ダイ（ｄｉｅ）を通じて圧出させて四角のプロファイルを成形できるようになった圧出器と、前記圧出器から供給されるプロファイルの表面全体を一定の厚さで完全に包めるように樹脂を供給する補助圧出器と、樹脂で包まれた前記プロファイルの一側に接着樹脂を供給するためのまた他の補助圧出器と、前記補助圧出器を通じて接着可能になった前記プロファイルを連続的に巻き取ってパイプ状の構造物を形成するためのワインダと、前記ワインダによるプロファイルの連続巻き取り時にその隣接プロファイルの表面の間に緊密に接着されるように前記接着樹脂の外側面を加圧してＨビーム状の接着樹脂層を形成するためのローラを含んでなることを特徴とする。
【０００８】
（発明を実施するための最良の態様）
以下、本発明の望ましい実施例を添付した図面に基づいて詳細に説明する。
図４ないし図７は、本発明の望ましい実施例に係る廃プラスチックを用いたスパイラルパイプ２及びその成形装置１を説明するための図であって、図４は、本発明に係るスパイラルパイプの成形装置の構成を示す概略的な平面図であり、図５Ａないし図５Ｃは、本発明のスパイラルパイプの成形装置によるスパイラルパイプの成形工程を順次に示す図であり、図５Ａは、本発明のスパイラルパイプ２に適用されるプロファイル９の断面図、図５Ｂは、前記プロファイル９に樹脂１１をかぶせた状態の断面図、図５Ｃは、前記樹脂１１の表面一側に接着樹脂１２をかぶせた状態の断面図を各々示す図であり、図６は、本発明に係るスパイラルパイプ２の外観及び断面構造を示す一部切開斜視図であり、図７は、本発明に係るスパイラルパイプ２の接着構造を示す部分拡大断面図である。
【０００９】
前記図面に示されたように、本発明は、圧出器３を通じて四角のプロファイル９が成形されつつ供給され、プロファイル９の一側または両側に２台の補助圧出器４、５を設けるが、前記補助圧出器４からプロファイル９の内、外側を完全に包むように樹脂１１を供給し、前記補助圧出器５から接着樹脂が供給されてプロファイル９を塗布すると共に、前記プロファイル９がワインダ６の外側を回転しつつ巻き取られ、ローラ７で前記プロファイル９の外側面を加圧することによって前記接着樹脂の表面がスムーズに、かつ均一に接着成形されるものであり、以後に切断器８を用いて一定の間隔に切断する。
ここで、樹脂１１で包まれたプロファイル９を接着させる接着樹脂はプロファイル９を包むが、その形態がＨビーム状になるように連続的に形成させるものである。
【００１０】
このような構成の実施例を添付した図面と共に詳細に説明する。
各種廃プラスチック５０〜１００重量部に農業副産物０〜５０重量部に溶融温度範囲１８０〜２５０℃で圧出器３内で溶融混練した後、四角のダイを通じて圧出させて複合体構造の図５Ａのような四角のプロファイル９に成形する。
前記のプロファイル９は成形供給される過程で空気により冷却され、プロファイル９の両側に設けられた補助圧出器４から樹脂１１を供給して四角のプロファイル９の表面全体に図５Ｂのように一定の厚さの樹脂１１が完全に包まれるようにする。
【００１１】
このように樹脂１１で表面が完全に包まれたプロファイル９をワインダ６に供給して環状の構造物に巻き取る過程でプロファイル９を互いに接着させるために補助圧出器５を通じて接着用樹脂１２を供給して図５Ｃのように包んだ後、ワインダ６に巻き取り、ローラ７の回転加圧により圧着させれば図７のようにプロファイル９の外側面に完全塗布されつつ接着されて接着樹脂層１２をなす。
この時、前記接着樹脂層１２はＨビーム状をなして外圧、衝撃及び荷重に強いスパイラルパイプ１２を形成する。
【００１２】
本工程で圧出器３の溶融温度範囲は１８０〜２５０℃であるため、結晶溶融温度が高くて溶融されない廃プラスチックは工程の特性上、前記プロファイル９の中心部上に溶融されない状態で固まるようになる。
したがって、プロファイル９は圧出されつつ内層と外層とに分けられ、内層は融点が高い廃プラスチックが完全に溶融されていない状態で農業副産物と互いに混練されているので外圧及び荷重に強くなり、外層は融点が相対的に低い廃プラスチックが完全に溶融混練されて外部の衝撃を吸収できるようになり、また圧出器３のダイを通過しつつ滑らかな形態を維持するために接着樹脂との融着がうまく行われる。
【００１３】
また、補助圧出器４、５に供給される接着樹脂により形成された接着樹脂層１２は、プロファイル９の外側でＨビーム構造に成形されるので既存の方法で成形されたスパイラルパイプに比べて顕著に高い衝撃強度、剛性係数及び環状剛性係数を有する（表１参照）。
【００１４】
【表１】

Figure 2004500996
【００１５】
一方、本発明は、前記の実施例以外にも廃プラスチックに代えて廃フィルムや農業副産物、林業副産物またはフライアッシュのような多様な充填材を使用できるものであって、すなわち、もみがら、わら、おがくず、木切れまたはフライアッシュなどの材料が充填材として使われ、廃プラスチックや廃ビニールと溶融混練してプロファイルを成形するのに使用できる。
【００１６】
（産業上の利用可能性）
本発明は圧出成形器で廃プラスチックまたは廃ビニールともみがら、わら、おがくず、木切れまたはフライアッシュなどのような多様な充填材と溶融混練されて成形されるプロファイルがダイを通過した後、一側または両側の補助圧出器から供給される樹脂によりプロファイルを完全に包むようにし、ワインダで接着樹脂層により隣のプロファイルをＨビーム状に接着してプロファイルと接着樹脂とが単一体をなすスパイラルパイプを提供することによって外圧、衝撃及び荷重に非常に強くなり、四角のプロファイルの材料として多様な産業廃棄物を適用することによって貴重な資源としてリサイクルが可能で環境汚染を防止でき、環境親和的な特性を発揮し、廃資源のリサイクルによる生産コスト節減の効果もある。
【００１７】
また、本発明は、前記プロファイルが圧出器のダイを通過しつつ滑らかな表面状態を維持するので接着樹脂との融着がうまく行われる。
また、本発明はＨビーム構造による接着方法を適用することによって既存のパイプに比べて接着性能に優れ、その結果として外部の圧力、静的負荷及び動的負荷に強くなり、衝撃抵抗が非常に高くてパイプの環状剛性係数が向上する効果がある。
【図面の簡単な説明】
【図１】
従来の技術に係るスパイラルパイプの成形装置の構成を示す概略的な平面図である。
【図２】
従来の技術に係るスパイラルパイプの外観及び断面構造を示す一部切開斜視図である。
【図３】
従来の技術に係るスパイラルパイプの接着構造を示す部分拡大断面図である。
【図４】
本発明に係るスパイラルパイプの成形装置の構成を示す概略的な平面図である。
【図５】
本発明のスパイラルパイプの成形装置によるスパイラルパイプの成形工程を順次に示す図であって、（Ａ）は本発明のスパイラルパイプに適用されるプロファイルの断面図であり、（Ｂ）は前記プロファイルに樹脂をかぶせた状態の断面図であり、（Ｃ）は前記樹脂の表面の一側に接着樹脂をかぶせた状態の断面図であある。
【図６】
本発明に係るスパイラルパイプの外観及び断面構造を示す一部切開斜視図である。
【図７】
本発明に係るスパイラルパイプの接着構造を示す部分拡大断面図である。[0001]
(Technical field)
The present invention relates to a spiral pipe used as a drain pipe or a drain pipe, and in particular, melt-kneading waste plastic and a filler such as agricultural by-products and forestry by-products or fly ash to form a square profile, and forming the profile into a resin. Spiral pipe made of waste plastic and an apparatus for molding the same, in which the resin-bonded surface between the profiles has an H-beam shape and is improved so as to be strong against external pressure, impact and load. About.
[0002]
(Background technology)
Generally, pipes used as sewer pipes and drain pipes are made by supplying raw materials to a number of rotating rollers as disclosed in "Pipes and a method of manufacturing the same" proposed in Korean Patent Application No. 93-17640. The raw material in the gel state is adhered to the roller while supplying the raw material to the inner and outer surfaces between the raw materials while supplying the raw material, and then injecting the cooling water through a cooling water injection nozzle. It is formed by cooling the raw material, and has an I-shaped adhesive structure without irregularities inside and outside the tube.
[0003]
As shown in FIGS. 1 to 3, such a conventional spiral pipe forming method is such that a rectangular space is formed inside through a vacuum cooling tank 20 while supplying raw materials from an extruder 3. When the profile 23 is formed and the adhesive raw material resin layer 22 is supplied through another auxiliary extrusion molding device 21 while the profile 23 passes through the winder 6, as a method of forming the spiral pipe 102 while being pressed by the roller 7, This is performed by the spiral pipe forming apparatus 101 shown in FIG.
[0004]
However, according to the existing method, the rectangular profile 23 is passed through the vacuum cooling bath 20 to form the profile 23, and the auxiliary extruder 21 is used for bonding the profile 23 already formed. The adhesive resin is supplied to one side surface of the adhesive layer 23. This is because not only the temperature difference between the cooled profile 23 and the adhesive resin causes the adhesion not to be normally performed, but also the adhesive resin layer 22 for bonding the profile 23 is entirely. In addition, since the profile 23 has a medium-hole-like structure and the profile 23 has a hollow structure, the bonding portion is very weak due to pressure, load and impact applied from the outside, and there is a possibility that it is easily broken and separated.
Furthermore, when the spiral pipe 101 used as a sewer pipe or a drain pipe is broken and separated by the action of external pressure, contaminated water seeps into the soil, seriously altering the soil and groundwater, and also serious problems such as the possibility of land subsidence. was there.
[0005]
(Disclosure of the Invention)
The present invention has been devised in view of all the above problems, and has an object to melt and knead waste plastic and a filler such as agricultural by-products and forestry by-products or fly ash to form a square. The industrial waste can be recycled as a precious resource by molding the profile of the resin, and the external pressure, impact and load can be obtained by completely wrapping the profile with resin and adhesive resin and forming the resin-bonded surface between the profiles into an H-beam shape. To provide a spiral pipe and a molding device for the same.
[0006]
A spiral pipe using waste plastic according to the present invention for achieving the above-mentioned object has a structure in which an adhesive resin layer wrapping an outer surface of a profile composed of an inner layer that is not completely melted and an outer layer that is melted has an H-beam shape. The profile is formed so as to completely wrap the profile.
At this time, the stiffness coefficient of the spiral pipe is formed within 7 to 15 kgf / cm 2 , and the profile is formed of an inner layer and an outer layer. It is characterized by being formed from various fillers such as fly ash and a melt-kneaded composite material.
[0007]
In addition, a spiral pipe molding apparatus using waste plastic according to the present invention for achieving the above-mentioned object is characterized in that 50 to 100 parts by weight of various waste plastics is filled with 0 to 50 parts by weight of a filler at a melting temperature of 180 to 250 parts by weight. An extruder capable of forming a square profile by being extruded through a die after melt-kneading in the range of ° C., and a constant thickness of the entire surface of the profile supplied from the extruder. Auxiliary extruder that supplies resin so that it can be completely wrapped, and another auxiliary extruder that supplies adhesive resin to one side of the profile wrapped with resin, and is bonded through the auxiliary extruder. A winder for continuously winding the enabled profile to form a pipe-shaped structure, and an adjacent profile when the winder continuously winds the profile. Characterized in that it comprises a roller for forming the H-beam shape of the adhesive resin layer pressurizes the outer surface of the adhesive resin so as to be closely adhered to between Le surfaces.
[0008]
(Best mode for carrying out the invention)
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIGS. 4 to 7 are views for explaining a spiral pipe 2 using waste plastic and a forming apparatus 1 for the same according to a preferred embodiment of the present invention. FIG. FIG. 5A to FIG. 5C are schematic plan views showing the configuration of the apparatus, and FIG. 5A to FIG. 5C are diagrams sequentially showing a spiral pipe forming process by the spiral pipe forming apparatus of the present invention, and FIG. FIG. 5B is a cross-sectional view of the profile 9 applied to the pipe 2, FIG. 5B is a cross-sectional view of a state where the resin 9 is covered on the profile 9, and FIG. 5C is a state where the adhesive resin 12 is covered on one surface of the resin 11. It is a figure which shows each sectional view, FIG. 6 is a partially cutaway perspective view which shows the external appearance and sectional structure of the spiral pipe 2 which concerns on this invention, FIG. 7 is the spiral pipe 2 which concerns on this invention. Is an enlarged partial sectional view showing an adhesion structure.
[0009]
As shown in the drawing, in the present invention, a rectangular profile 9 is supplied through the extruder 3 while being formed, and two auxiliary extruders 4 and 5 are provided on one side or both sides of the profile 9. A resin 11 is supplied from the auxiliary extruder 4 so as to completely wrap the inside of the profile 9, an adhesive resin is supplied from the auxiliary extruder 5, and the profile 9 is applied. The outer surface of the adhesive resin is smoothly and uniformly formed by pressing the outer surface of the profile 9 with the roller 7 while the outer surface of the adhesive resin 6 is pressed. Cut at regular intervals using.
Here, the adhesive resin for bonding the profile 9 wrapped by the resin 11 wraps the profile 9, but is formed continuously so that the form becomes an H-beam shape.
[0010]
An embodiment having such a configuration will be described in detail with reference to the accompanying drawings.
5-100 parts by weight of various waste plastics and 0-50 parts by weight of agricultural by-products are melt-kneaded in an extruder 3 at a melting temperature range of 180-250 ° C., and then extruded through a square die to obtain a composite structure FIG. 5A. Into a square profile 9 as shown in FIG.
The profile 9 is cooled by air in the process of being formed and supplied, and the resin 11 is supplied from the auxiliary extruders 4 provided on both sides of the profile 9 so as to be constant over the entire surface of the rectangular profile 9 as shown in FIG. 5B. The thickness of the resin 11 is completely wrapped.
[0011]
In the process of supplying the profile 9 whose surface is completely wrapped with the resin 11 to the winder 6 and winding the profile 9 around the annular structure, the bonding resin 12 is passed through the auxiliary extruder 5 to bond the profiles 9 to each other. After being supplied and wrapped as shown in FIG. 5C, it is wound around a winder 6 and pressure-bonded by the rotation and pressure of a roller 7 to be completely applied and adhered to the outer surface of the profile 9 as shown in FIG. Make 12
At this time, the adhesive resin layer 12 forms an H beam to form a spiral pipe 12 which is strong against external pressure, impact and load.
[0012]
In this step, the melting temperature range of the extruder 3 is 180 to 250 ° C., so that the waste plastic having a high crystal melting temperature and not being melted solidifies on the center of the profile 9 without being melted due to the characteristics of the process. become.
Therefore, the profile 9 is divided into an inner layer and an outer layer while being extruded, and the inner layer is strong against external pressure and load because the waste plastic having a high melting point is kneaded with agricultural by-products in a state where it is not completely melted. The waste plastic having a relatively low melting point is completely melted and kneaded so that external impact can be absorbed. In addition, while the extruder 3 passes through the die and maintains a smooth shape, it is melted with the adhesive resin. Wearing is done well.
[0013]
Further, the adhesive resin layer 12 formed by the adhesive resin supplied to the auxiliary extruders 4 and 5 is formed into an H-beam structure outside the profile 9, so that the adhesive resin layer 12 is compared with a spiral pipe formed by an existing method. It has a significantly higher impact strength, stiffness coefficient and annular stiffness coefficient (see Table 1).
[0014]
[Table 1]
Figure 2004500996
[0015]
On the other hand, the present invention can use various fillers such as waste films, agricultural by-products, forestry by-products or fly ash instead of waste plastics in addition to the above-mentioned examples, that is, rice husk, straw Materials such as sawdust, wood chips or fly ash are used as fillers and can be melt-kneaded with waste plastics and waste vinyl to form profiles.
[0016]
(Industrial applicability)
The present invention relates to an extruder, which is formed by melting and kneading with a variety of fillers such as waste plastic or vinyl, such as rice, straw, sawdust, wood chips, fly ash, etc., after passing through a die. Spiral in which the profile is completely wrapped by the resin supplied from the auxiliary extruder on the side or both sides, and the adjacent profile is bonded in an H-beam shape by an adhesive resin layer with a winder, and the profile and the adhesive resin are unitary. By providing pipes, it is very resistant to external pressure, impact and load, and it can be recycled as a valuable resource by applying various industrial wastes as square profile material, which can prevent environmental pollution, and is environmentally friendly It has the effect of reducing production costs by recycling waste resources.
[0017]
Further, in the present invention, the profile is maintained at a smooth surface state while passing through the die of the extruder, so that the fusion with the adhesive resin is successfully performed.
In addition, the present invention has better bonding performance than existing pipes by applying the bonding method based on the H-beam structure, and as a result, is more resistant to external pressure, static load and dynamic load, and has very low impact resistance. The effect is high and the annular rigidity coefficient of the pipe is improved.
[Brief description of the drawings]
FIG.
It is a schematic plan view showing a configuration of a spiral pipe forming apparatus according to a conventional technique.
FIG. 2
It is a partially cutaway perspective view showing an appearance and a sectional structure of a spiral pipe according to a conventional technique.
FIG. 3
It is a partial expanded sectional view showing the adhesion structure of the spiral pipe concerning the conventional technology.
FIG. 4
It is a schematic plan view showing the composition of the spiral pipe shaping device concerning the present invention.
FIG. 5
It is a figure which shows the molding process of the spiral pipe by the spiral pipe molding apparatus of this invention sequentially, (A) is sectional drawing of the profile applied to the spiral pipe of this invention, (B) is the said profile. It is sectional drawing in the state which covered the resin, (C) is sectional drawing in the state which covered the adhesive resin on one side of the surface of the said resin.
FIG. 6
BRIEF DESCRIPTION OF THE DRAWINGS It is a partially cutaway perspective view which shows the external appearance and sectional structure of the spiral pipe which concerns on this invention.
FIG. 7
It is a partial expanded sectional view showing the adhesion structure of the spiral pipe concerning the present invention.

Claims (4)

完全に溶融されていない内層及び溶融された外層よりなるプロファイルの外側面を包む接着樹脂層がＨビーム状にプロファイルを完全に包むように成形されたことを特徴とする廃プラスチックを用いたスパイラルパイプ。A spiral pipe using waste plastic, wherein an adhesive resin layer wrapping an outer surface of a profile composed of an inner layer that is not completely melted and an outer layer that is melted is formed so as to completely wrap the profile in an H-beam shape. 前記スパイラルパイプの剛性係数は７〜１５Ｋｇｆ／ｃｍ２以内に成形されることを特徴とする請求項１に記載の廃プラスチックを用いたスパイラルパイプ。The spiral pipe with waste plastics according to claim 1 stiffness coefficient of the spiral pipe, characterized in that it is molded within 7~15Kgf / cm 2. 前記プロファイルは内層及び外層よりなり、もみがら、わらのような農業副産物、おがくず、木切れのような林業副産物またはフライアッシュなどの多様な充填材と、溶融混練された複合材料とから成形されたことを特徴とする請求項１に記載の廃プラスチックを用いたスパイラルパイプ。The profile comprises an inner layer and an outer layer, and is formed from various fillers such as agricultural by-products such as rice husk, straw, sawdust, forestry by-products such as wood chips or fly ash, and a melt-kneaded composite material. A spiral pipe using waste plastic according to claim 1, characterized in that: 各種廃プラスチック５０〜１００重量部に充填材０〜５０重量部を溶融温度１８０〜２５０℃の範囲で溶融混練した後、ダイを通じて圧出させて四角のプロファイルを成形可能な圧出器と、
前記圧出器から供給されるプロファイルの表面全体を一定の厚さで完全に包囲する樹脂を供給する第一補助圧出器と、
樹脂で包まれた前記プロファイルの一側に接着樹脂を供給する第二補助圧出器と、
前記第二補助圧出器を通じて接着可能になった前記プロファイルを連続的に巻き取ってパイプ状の構造物を形成するためのワインダと、
前記ワインダによるプロファイルの連続巻き取り時にその隣接プロファイルの表面の間に緊密に接着されるように前記接着樹脂の外側面を加圧してＨビーム状の接着樹脂層を形成するためのローラと、
を備えることを特徴とする廃プラスチックを用いたスパイラルパイプの成形装置。An extruder capable of forming a square profile by melt-kneading a filler of 0 to 50 parts by weight in a range of melting temperature of 180 to 250 ° C. to 50 to 100 parts by weight of various waste plastics, and then extruding through a die;
A first auxiliary extruder for supplying a resin that completely surrounds the entire surface of the profile supplied from the extruder with a constant thickness,
A second auxiliary extruder for supplying adhesive resin to one side of the profile wrapped with resin,
A winder for continuously winding the profile capable of being bonded through the second auxiliary extruder to form a pipe-shaped structure;
A roller for forming an H-beam-shaped adhesive resin layer by pressing the outer surface of the adhesive resin so that the outer surface of the adhesive resin is tightly bonded between the surfaces of adjacent profiles during continuous winding of the profile by the winder;
A spiral pipe molding apparatus using waste plastic, comprising:
JP2000612109A 1999-04-17 2000-04-17 Spiral pipe using waste plastic and molding device therefor Pending JP2004500996A (en)

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