KR100925249B1 - Medical port tube for extrusion molding device and process for producing the same - Google Patents

Medical port tube for extrusion molding device and process for producing the same Download PDF

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Publication number
KR100925249B1
KR100925249B1 KR1020070132384A KR20070132384A KR100925249B1 KR 100925249 B1 KR100925249 B1 KR 100925249B1 KR 1020070132384 A KR1020070132384 A KR 1020070132384A KR 20070132384 A KR20070132384 A KR 20070132384A KR 100925249 B1 KR100925249 B1 KR 100925249B1
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South Korea
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tube
cooling water
extrusion
tank
cooling
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KR1020070132384A
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Korean (ko)
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KR20090064986A (en
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이붕걸
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이붕걸
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Priority to KR1020070132384A priority Critical patent/KR100925249B1/en
Priority to PCT/KR2008/007409 priority patent/WO2009078639A1/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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • 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
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being 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
    • 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
    • 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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • B29C48/3363—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a layered die, e.g. stacked discs
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • 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
    • B29C48/355—Conveyors for extruded articles
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/905—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/10—Polymers of propylene
    • B29K2023/12—PP, i.e. polypropylene
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/005—Hoses, i.e. flexible
    • B29L2023/007—Medical tubes other than catheters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7148—Blood bags, medical bags

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

본 발명은 의료용 포트 튜브 압출성형장치 및 그 압출성형방법에 관한 것으로서, 특히 튜브의 자중 및 수축에 의한 변형을 방지하여 균일한 두께 및 외경을 형성할 수 있도록 하는 의료용 포트 튜브 압출성형장치 및 그 압출성형방법을 제공하기 위한 것이다.

이를 위해 본 발명에서는 서로 다른 수지원료를 각각 공급받아 연화 및 용융시키고, 이를 혼련된 상태로 압축하여 공급하는 제1,2,3압출기들과, 상기 제1,2,3압출기들로부터 용융된 수지를 각각 공급받아 다층형 관상 튜브를 연직으로 압출하는 성형다이스와, 상기 성형다이스에서 밀려나오는 관상의 튜브를 냉각 및 진공압을 이용해 외형을 안정화시키는 진공사이징탱크와, 상기 진공사이징탱크를 통과한 튜브를 일정한 속도로 잡아당겨 이송시키는 테이크 업 롤러와, 상기 테이크 업 롤러에 의해 안내 이송되는 튜브를 냉각시키는 냉각수조 및 상기 냉각수조의 튜브 이동방향 단부에 설치되어 냉각수조를 통과한 튜브의 표면을 건조시키는 블로워를 포함하는 의료용 포트 튜브 압출성형장치가 개시된다.

Figure R1020070132384

포트 튜브, 압출성형

The present invention relates to a medical port tube extrusion molding apparatus and an extrusion molding method thereof, and in particular, a medical port tube extrusion molding apparatus and an extrusion thereof for preventing deformation due to self weight and shrinkage of a tube to form a uniform thickness and outer diameter. It is to provide a molding method.

To this end, in the present invention, the first, second and third extruders and the resin melted from the first, second and third extruders are supplied to different softeners and softened and melted, compressed and supplied in a kneaded state. And a vacuum die tank for stabilizing the appearance of the tubular tube pushed out of the molding die by cooling and vacuum pressure, and a tube passing through the vacuum sizing tank. A take-up roller for pulling and transporting the tube at a constant speed, a cooling water tank for cooling the tube guided by the take-up roller, and a tube moving direction end of the cooling water tank to dry the surface of the tube passing through the cooling water tank. Disclosed is a medical pot tube extrusion apparatus comprising a blower.

Figure R1020070132384

Port Tube, Extrusion

Description

의료용 포트 튜브 압출성형장치 및 그 압출성형방법{MEDICAL PORT TUBE FOR EXTRUSION MOLDING DEVICE AND PROCESS FOR PRODUCING THE SAME}MEDICAL PORT TUBE FOR EXTRUSION MOLDING DEVICE AND PROCESS FOR PRODUCING THE SAME}

본 발명은 의료용 포트 튜브 압출성형장치 및 그 압출성형방법에 관한 것으로서, 더욱 상세하게는 튜브의 자중 및 수축에 의한 변형을 방지하여 균일한 두께 및 외경을 형성할 수 있는 의료용 포트 튜브 압출성형장치 및 그 압출성형방법에 관한 것이다.The present invention relates to a medical port tube extrusion molding apparatus and an extrusion molding method thereof, and more particularly, to a medical port tube extrusion molding apparatus capable of forming a uniform thickness and outer diameter by preventing deformation due to self-weight and shrinkage of the tube; It relates to an extrusion molding method.

DEHP는 프탈레이트 계통의 인공 화학물질로 수혈세트, 혈액백, 수액백, 튜브 등과 같은 PVC재질의 의료기기를 유연하게 하기 위한 가소제로 널리 사용되고 있다. 이 물질은 암, 생식기능 장애 등 인체에 악영향을 초래하는 것으로 알려져 있으며, 세계야생보호기금(WWF)은 환경호르몬(내분비계교란물질) 67개 물질 중 하나로 분류하고 있다.DEHP is a phthalate artificial chemical and is widely used as a plasticizer for softening PVC-based medical devices such as blood transfusion sets, blood bags, transfusion bags, and tubes. This substance is known to cause adverse effects on the human body such as cancer and reproductive dysfunction, and the World Wildlife Protection Fund (WWF) is classified as one of 67 environmental hormones (endocrine disruptors).

이에 따라 선진국에선 식품, 환경, 의료 등의 분야에서 DEHP 규제기준을 마련하여 그 사용을 제한하고 있고, 이에 발맞추어 최근에는 PP 또는 PET 등 NON-PVC재질의 다양한 의료기기가 개발되어 보급되고 있다.As a result, developed countries are restricting their use by establishing DEHP regulatory standards in the fields of food, environment, and medicine. Recently, various medical devices made of NON-PVC materials such as PP or PET have been developed and distributed.

특히 수액백에 연결되는 포트 튜브는 수액백 및 밀봉캡과의 열융착이 용이하 고 기밀성을 안정적으로 유지하면서 충분한 가요성을 가져야 하며, 다층 구조의 경우 층간 분리가 일어나지 않는 구조적인 특성이 요구된다.In particular, the port tube connected to the sap bag should have sufficient flexibility while being easily heat-sealed with the sap bag and the sealing cap, while maintaining the airtight stability, and in the case of a multilayer structure, a structural characteristic that does not occur between layers is required. .

이러한 의료용 포트 튜브를 제조하는 방법으로 압출기에 의해 용융된 수지를 목적하는 형상의 금형을 통과시킴으로써 튜브형으로 압출하는 튜브 압출법이 공업적으로 널리 실시되고 있다.As a method for producing such a medical pot tube, a tube extrusion method for extruding into a tubular shape by passing a molten resin through a mold having a desired shape has been widely practiced industrially.

그러나 이와 같은 종래의 튜브 압출법으로는 일정한 성형품질의 포트 튜브를 얻는 것이 매우 곤란하였다. 즉, PP, PET 등의 열가소성 수지는 용융시키면 고유점도가 대단히 낮은 저점도 상태가 되는 불안정한 특성이 있는 데다, 금형을 통과하여 튜브형으로 압출된 포트 튜브가 냉각수조를 거치는 과정에서 중력의 영향을 받아 하부로 처지는 현상이 발생되고, 이로 인하여 포트 튜브의 상부 두께는 얇고 하부 두께는 두껍게 성형되는 등 전체적으로 균일한 형태의 정원을 이루지 못하는 문제점이 있었다.However, in such a conventional tube extrusion method, it is very difficult to obtain a pot tube of constant molding quality. In other words, thermoplastic resins such as PP and PET have an unstable characteristic when they are melted to have a low viscosity state with very low intrinsic viscosity, and the tube tube extruded into a tubular shape through the mold is affected by gravity in the course of passing through the cooling water tank. The phenomenon of sagging to the bottom occurs, which causes a problem in that the upper thickness of the port tube is thin and the lower thickness is thickly formed, thereby preventing the garden from having a uniform shape as a whole.

또한, 중공 형상의 튜브가 갖는 특성상 튜브를 압출하는 과정에서 금형 내부의 압력 변화에 의한 튜브의 국부적인 변형이 발생될 뿐만 아니라, 금형에서 밀려나오는 튜브를 권취롤러가 바로 당기면서 감기 때문에 당김력에 의한 변형도 발생되었다.In addition, in the process of extruding the tube due to the characteristics of the hollow tube, not only the local deformation of the tube is caused by the pressure change in the mold, but also the winding roller is pulled and wound while the winding roller is pulled out of the mold. Deformation was also caused.

더욱이 냉각수조를 거친 튜브는 표면에 수분이 완전히 제거되지 않은 상태로 권취롤러에 감기게 되어 미생물의 번식 등 보건위생상 저해의 우려가 있으므로 종래의 튜브 압출장치로는 의료용 튜브를 제조하기에 부적합한 한계가 있었다.Moreover, the tube passed through the cooling water tank is wound on the take-up roller without completely removing moisture on the surface, which may impede the health and hygiene such as the growth of microorganisms. Therefore, the conventional tube extrusion apparatus is not suitable for manufacturing medical tubes. There was.

이에 본 발명자는 상술한 바와 같은 문제점을 감안하여 튜브의 자중 및 수축 에 의한 변형을 방지할 수 있도록 하면서 보건위생상 저해의 우려가 없는 의료용 포트 튜브 압출성형장치 및 그 압출성형방법을 개발하고자 다년간 예의 연구하여 왔으며, 그 결과로써 본 발명을 완성하였다.In view of the problems described above, the present inventors have made many efforts to develop a medical port tube extrusion molding device and an extrusion molding method thereof, which can prevent deformation due to self-weight and shrinkage of a tube and do not have a risk of inhibiting health and hygiene. The present invention has been completed as a result.

따라서 본 발명의 목적은 성형품의 자중 및 수축에 의한 변형을 방지할 수 있도록 하는 의료용 포트 튜브 압출성형장치 및 그 압출성형방법을 제공하는 데 있는 것이다.Accordingly, it is an object of the present invention to provide a medical port tube extrusion molding apparatus and an extrusion molding method thereof that can prevent deformation due to the weight and shrinkage of the molded article.

본 발명의 다른 목적은 위생상 안전한 의료용 포트 튜브를 얻을 수 있도록 하는 의료용 포트 튜브 압출성형장치 및 그 압출성형방법을 제공하는 데 있는 것이다.Another object of the present invention is to provide a medical port tube extrusion apparatus and an extrusion method for producing the medical port tube hygienically safe.

상기와 같은 목적을 달성하기 위해 본 발명은 서로 다른 수지원료를 각각 공급받아 연화 및 용융시키고, 이를 혼련된 상태로 압축하여 공급하는 제1,2,3압출기들과, 상기 제1,2,3압출기들로부터 용융된 수지를 각각 공급받아 다층형 관상 튜브를 연직으로 압출하는 성형다이스와, 상기 성형다이스에서 밀려나오는 관상의 튜브를 냉각 및 진공압을 이용해 외형을 안정화시키는 진공사이징탱크와, 상기 진공사이징탱크를 통과한 튜브를 일정한 속도로 잡아당겨 이송시키는 테이크 업 롤러와, 상기 테이크 업 롤러에 의해 안내 이송되는 튜브를 냉각시키는 냉각수조 및 상기 냉각수조의 튜브 이동방향 단부에 설치되어 냉각수조를 통과한 튜브의 표면을 건조시키는 블로워를 포함하는 의료용 포트 튜브 압출성형장치를 제공한다.In order to achieve the above object, the present invention provides the first, second, third extruders and the first, second, and third extruders that are supplied with different water softener and softened and melted, and compressed and melted in a kneaded state. A molding die which receives molten resin from the extruders and extrudes the multilayer tubular tube vertically, a vacuum sizing tank which stabilizes the appearance by cooling and vacuum pressure of the tubular tube pushed out of the molding die, and the vacuum A take-up roller for pulling and transferring the tube passing through the sizing tank at a constant speed, a cooling tank for cooling the tube guided by the take-up roller, and an end of the tube moving direction of the cooling tank, Provided is a medical pot tube extrusion apparatus comprising a blower for drying the surface of the tube.

또한, 본 발명의 다른 실시형태는 서로 다른 수지원료를 호퍼를 통해 제1,2,3압출기들로 각각 공급하는 제1공정과, 압출기로 공급된 각각의 수지원료를 가 열하여 연화 및 용융시키고, 스크루의 회전에 의해 혼련과 압축된 상태로 성형다이스로 밀어내어 관상의 튜브를 연직으로 압출하는 제2공정과, 성형다이스에서 압출된 튜브를 진공사이징탱크의 냉각수 및 진공압을 이용하여 일정한 형태로 안정화시키는 제3공정과, 진공사이징탱크를 통과한 튜브의 표면에 냉각수를 연속적으로 흘러내려서 냉각하는 제4공정과, 냉각된 튜브를 냉각수조를 통과시켜서 재차 냉각하는 제5공정 및 재냉각된 튜브의 표면을 블로워로 건조하는 제6공정을 포함하는 의료용 포트 튜브 압출성형방법을 제공한다.In addition, another embodiment of the present invention is a first process of supplying different water support materials to the first, second, and third extruders through the hopper, and each water support material supplied to the extruder is heated to soften and melt The second step of extruding the tubular tube vertically by kneading and compressing by rotating the screw to the molding die, and the tube extruded from the molding die by using the cooling water and vacuum pressure of the vacuum sizing tank A third step of stabilizing the furnace, a fourth step of continuously cooling the cooling water by flowing down the surface of the tube passing through the vacuum sizing tank, and a fifth step of recooling the cooled tube by passing the cooling water tank again and being recooled. Provided is a medical port tube extrusion method comprising a sixth step of drying the surface of the tube with a blower.

상술한 바와 같은 과제 해결 수단 및 구성을 갖는 본 발명은 튜브가 성형다이스의 개구부를 통해 중력 방향으로 압출되기 때문에 자중 등으로 인해 처지는 현상을 방지할 수 있을 뿐만 아니라, 성형다이스에서 압출되는 튜브는 에어노즐을 통해 내부에 일정한 압력을 공급받으면서 진공사이징탱크를 통과하므로 튜브의 내부와 진공사이징탱크의 압력차가 안정적으로 유지되고, 이로 인해 튜브의 외경이 균일한 정원의 형태로 성형되는 효과가 있다.The present invention having the problem solving means and the configuration as described above can be prevented from sagging due to the self-weight because the tube is extruded in the direction of gravity through the opening of the molding die, the tube is extruded from the molding die Since the pressure is passed through the vacuum sizing tank while receiving a constant pressure therein, the pressure difference between the inside of the tube and the vacuum sizing tank is stably maintained, and thus, the outer diameter of the tube is formed into a uniform garden.

또한, 본 발명은 진공사이징탱크를 일정한 간격을 두고 상하 복수로 설치함으로써 진공사이징탱크의 진공압을 보다 효율적으로 각각 제어할 수 있게 된다. 따라서 튜브의 외경을 더욱 균일하게 형성할 수 있는 이점이 있고, 튜브와 진공사이징탱크의 마찰이 감소되면서 튜브의 연신 및 수축 편차가 작아져 제품의 불량률을 최소화할 수 있는 효과가 있다.In addition, according to the present invention, by installing the vacuum sizing tank in a plurality of upper and lower portions at regular intervals, the vacuum pressure of the vacuum sizing tank can be controlled more efficiently. Therefore, there is an advantage that the outer diameter of the tube can be formed more uniformly, and the friction between the tube and the vacuum sizing tank is reduced, thereby reducing the stretching and shrinkage deviation of the tube, thereby minimizing the defective rate of the product.

또한, 본 발명은 진공사이징탱크를 통과한 튜브가 냉각수공급관에서 흘러내 리는 냉각수에 직접 접촉되면서 이송되므로 튜브의 냉각효율을 월등하게 향상시키는 효과가 있다.In addition, the present invention has the effect that the tube passed through the vacuum sizing tank is directly contacted with the cooling water flowing down from the cooling water supply pipe to improve the cooling efficiency of the tube.

또한, 본 발명은 냉각수조를 거치면서 형성된 튜브 표면의 수분을 완전히 제거하므로 세균 등 미생물의 번식을 예방할 수 있는 효과가 있다.In addition, the present invention has the effect of completely preventing the growth of microorganisms, such as bacteria because it completely removes the water on the tube surface formed through the cooling water tank.

이하, 본 발명의 실시예에 따른 구성을 첨부된 도면을 참조하여 보다 구체적으로 설명한다.Hereinafter, a configuration according to an embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

이에 앞서, 후술하는 용어들은 본 발명에서의 기능을 고려하여 정의된 것으로서, 이는 본 발명의 기술적 사상에 부합하는 개념 및 통용되는 고유의 의미로 해석되어야 함을 명시한다.Prior to this, terms to be described below are defined in consideration of functions in the present invention, which clearly indicates that the concept and the meaning of the present invention in accordance with the technical spirit of the present invention should be interpreted.

또한, 본 발명과 관련된 공지기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우 그 상세한 설명은 생략한다.In addition, when it is determined that the detailed description of known functions or configurations related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted.

도 1은 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치를 개략적으로 나타낸 구성도이고, 도 2는 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치의 성형다이스를 나타낸 측단면도이고, 도 3은 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치에 의해 압출된 포트 튜브의 정단면도로서, 도 1 내지 도 3에 도시된 바와 같이 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치(100)는 제1,2,3압출기(10a,10b,10c), 성형다이스(20), 진공사이징탱크(30), 테이크 업 롤러(40), 냉각수조(50) 및 블로워(60)를 포함하여 구성된다.1 is a schematic view showing a medical pot tube extrusion apparatus according to an embodiment of the present invention, Figure 2 is a side cross-sectional view showing a molding die of the medical pot tube extrusion apparatus according to an embodiment of the present invention, 3 is a front sectional view of a port tube extruded by a medical port tube extrusion apparatus according to an embodiment of the present invention, as shown in Figures 1 to 3 medical port tube extrusion molding apparatus according to an embodiment of the present invention ( 100 includes first, second and third extruders 10a, 10b and 10c, forming die 20, vacuum sizing tank 30, take up roller 40, cooling water tank 50 and blower 60. It is configured by.

먼저, 제1,2,3압출기(10a,10b,10c)들은 각각의 호퍼(11a,11b,11c)를 통해 공 급된 펠릿형태의 서로 다른 수지원료를 겔 상태로 가열하고 용융시켜 스크루의 회전에 의해 혼련(混練)과 압축을 하면서 앞쪽으로 이송하도록 구성되어 있다.First, the first, second, and third extruders 10a, 10b, and 10c are heated and melted in a gel state with different pellets supplied in the pellet form supplied through the respective hoppers 11a, 11b, and 11c. It is comprised so that forwarding may be carried out, kneading and compression.

성형다이스(20)는 제1,2,3압출기(10a,10b,10c)들에 의해 일정한 압력으로 압축 공급되는 겔 상태의 수지원료를 개구부(23)를 통해 관상의 튜브를 압출하기 위한 것으로, 제1,2,3압출기(10a,10b,10c)들에 의해 용융된 수지가 연직으로 동시에 밀려나오면서 내층(T1), 중층(T2), 외층(T3)을 갖는 다층형 튜브(T)로 형성되도록 설치되어 있다.The molding die 20 is for extruding the tubular tube through the opening 23 through the opening of the gel water support material which is compressed and supplied at a constant pressure by the first, second and third extruders 10a, 10b and 10c. The resin melted by the first, second, and third extruders 10a, 10b, and 10c is simultaneously pushed out vertically to form a multilayer tube T having an inner layer T1, a middle layer T2, and an outer layer T3. It is installed as possible.

이러한 성형다이스(20)는 제1,2,3압출기(10a,10b,10c)들에 각기 연결되는 주입구(21a,21b,21c)와 용융된 수지가 밀려나오는 개구부(23) 사이에는 제1압출유로(22a), 제2압출유로(22b), 제3압출유로(22c)가 개구부(23)에서 합류되도록 형성되어 있다. 따라서 제1,2,3압출기(10a,10b,10c)들에서 각각의 주입구(21a,21b,21c)로 공급되는 용융수지가 제1,2,3압출유로(22a,22b,22c)를 통과하여 개구부(23)로 밀려나오면서 지름이 서로 다른 세 겹의 튜브(T)가 일체로 압출되게 된다.The molding die 20 has a first extrusion between the injection holes 21a, 21b and 21c connected to the first, second and third extruders 10a, 10b and 10c and the opening 23 through which the molten resin is pushed out. The flow passage 22a, the second extrusion passage 22b, and the third extrusion passage 22c are formed to join the opening 23. Accordingly, the molten resin supplied from the first, second, and third extruders 10a, 10b, and 10c to the respective injection ports 21a, 21b, and 21c passes through the first, second, and third extrusion passages 22a, 22b, and 22c. As it is pushed out to the opening 23, the three-ply tube T having a different diameter is integrally extruded.

또한, 성형다이스(20)의 상부에는 별도의 공기공급장치로부터 전달받은 일정한 압력의 공기를 성형다이스의 중공부(24)로 공급하는 에어노즐(28)이 설치되어 있다. In addition, the upper portion of the forming die 20 is provided with an air nozzle 28 for supplying air of a constant pressure received from a separate air supply device to the hollow portion 24 of the forming die.

이로써 성형다이스의 개구부(23)로 압출되는 튜브(T)의 내부는 에어노즐(28)을 통해 미세한 압력으로 공급되는 공기에 의해 대기압과 같은 일정한 압력을 유지하게 되고, 이러한 상태의 튜브(T)가 진공사이징탱크(30)를 통과 시 튜브의 내부와 진공사이징탱크(30)의 압력차이로 인하여 튜브의 표면은 팽창압력을 받게 되고, 그에 따라 튜브의 표면이 균일한 형태로 성형되게 된다.As a result, the inside of the tube T extruded into the opening 23 of the forming die is maintained at a constant pressure, such as atmospheric pressure, by air supplied at a minute pressure through the air nozzle 28, and the tube T in this state. When the gas passes through the vacuum sizing tank 30, the surface of the tube is subjected to an expansion pressure due to the pressure difference between the inside of the tube and the vacuum sizing tank 30, thereby forming a uniform surface of the tube.

진공사이징탱크(30)는 성형다이스(20)를 통해 튜브형으로 압출된 수지의 형상을 안정화시키는 것으로, 성형다이스의 개구부(23)에서 밀려나오면서 형성되는 튜브에 내외부의 압력차를 이용한 압력을 가하여 외형을 유지하도록 함과 아울러 내부에 충진된 냉각수를 이용하여 튜브(T)를 냉각시키게 된다.The vacuum sizing tank 30 stabilizes the shape of the resin extruded in a tubular shape through the molding die 20, and applies a pressure using an internal and external pressure difference to the tube formed while being pushed out of the opening 23 of the molding die. In addition to maintaining the cooling to the tube (T) using the cooling water filled therein.

또한, 진공사이징탱크(30)는 내부를 진공화시키기 위해 외부의 진공펌프(미도시)와 연결되어 있고, 또한 냉각수가 항상 일정한 온도를 유지하기 위해 외부의 순환펌프(미도시) 및 냉각탱크(미도시)와 연결되어 냉각수가 지속적으로 순환되게 된다.In addition, the vacuum sizing tank 30 is connected to an external vacuum pump (not shown) to evacuate the inside, and the external circulation pump (not shown) and the cooling tank (not shown) to maintain a constant temperature of the coolant at all times. And cooling water is continuously circulated.

그리고 진공압을 제어하는 압력센서(미도시)와 냉각수의 온도를 제어하는 온도센서(미도시)에 의해 진공사이징탱크(30)의 진공압 및 냉각수의 온도가 제어되게 된다.The vacuum pressure and the temperature of the cooling water of the vacuum sizing tank 30 are controlled by a pressure sensor (not shown) for controlling the vacuum pressure and a temperature sensor (not shown) for controlling the temperature of the cooling water.

이러한 진공사이징탱크(30)는 상하로 일정한 간격을 두고 복수로 배열 설치함으로써 튜브(T)의 냉각속도를 조절할 수 있어 튜브가 더욱 안정적으로 냉각 및 경화되고, 튜브(T)와 진공사이징탱크(30)의 마찰이 감소되면서 튜브의 연신 및 수축 편차가 작아짐으로 인하여 튜브(T)가 대기압이나 자중 또는 인장력에 의하여 변형되는 것을 완벽하게 방지할 수 있게 된다.The vacuum sizing tank 30 can be arranged in a plurality of spaced intervals up and down to adjust the cooling rate of the tube (T), the tube is cooled and cured more stably, the tube (T) and the vacuum sizing tank (30) As the friction of) decreases, the stretching and contraction deviation of the tube decreases, thereby completely preventing the tube T from being deformed by atmospheric pressure, self-weight, or tensile force.

여기서, 진공사이징탱크(30) 내부의 진공압력은 190mmHg ~ 230mmHg로 설정함 이 바람직하다.Here, the vacuum pressure inside the vacuum sizing tank 30 is preferably set to 190mmHg ~ 230mmHg.

냉각수공급관(38)은 진공사이징탱크(30)의 하단에 튜브를 감싸는 형태로 설치되어 외부에서 공급되는 냉각수를 튜브의 표면을 따라 하부로 흘러내리는 기능을 수행한다.The cooling water supply pipe 38 is installed in the form of surrounding the tube at the bottom of the vacuum sizing tank 30 to perform a function of flowing the cooling water supplied from the outside downward along the surface of the tube.

이러한 냉각수공급관(38)에 의해 진공사이징탱크(30)를 통과한 튜브가 재냉각되면서 더욱 신속하게 안정적인 형태를 유지할 수 있게 된다.As the tube passed through the vacuum sizing tank 30 is recooled by the cooling water supply pipe 38, a stable form can be maintained more quickly.

테이크 업 롤러(40)는 진공사이징탱크(30)의 하부에 설치되어 모터 등의 구동원에 의해 회전되면서 진공사이징탱크를 통과한 튜브(T)를 일정한 속도로 잡아당겨 냉각수조(50)로 안내 이송시키는 기능을 수행한다.The take-up roller 40 is installed at the lower portion of the vacuum sizing tank 30 and is rotated by a driving source such as a motor to pull the tube T passing through the vacuum sizing tank at a constant speed and guide the transfer to the cooling water tank 50. To perform the function.

이러한 테이크 업 롤러(40)를 거친 튜브는 적어도 하나 이상의 가이드 롤러를 지나 냉각수조(50)로 이송된다.The tube passed through the take up roller 40 is transferred to the cooling water tank 50 through at least one guide roller.

여기서, 테이크 업 롤러(40)의 외측은 냉각수공급관(38)을 통해 튜브를 따라 흘러 내려오는 냉각수를 일시적으로 저장 및 별도의 냉각탱크(미도시)로 순환시킬 수 있도록 수조 형태로 형성됨이 바람직하다.Here, the outer side of the take-up roller 40 is preferably formed in a water tank so that the coolant flowing down the tube through the coolant supply pipe 38 may be temporarily stored and circulated to a separate cooling tank (not shown). .

냉각수조(50)는 테이크 업 롤러(40)에 의해 안내 이송되는 튜브(T)를 재차 냉각시키는 것으로, 내부에 냉각수가 채워져 별도의 순환펌프(미도시) 및 냉각탱크(미도시)에 의해 순환되면서 일정한 온도를 유지하도록 설치되어 있다.The cooling water tank 50 cools the tube T guided by the take-up roller 40 again, and the cooling water is filled therein, and is circulated by a separate circulation pump (not shown) and a cooling tank (not shown). It is installed to maintain a constant temperature.

이러한 냉각수조(50)는 튜브가 냉각수에 일정하게 잠기도록 제어하는 수위센서(미도시)와 냉각수 공급펌프(미도시)가 구비되어 있고, 냉각수의 온도를 제어하기 위한 온도센서(미도시)가 구비되어 있다.The cooling water tank 50 is provided with a water level sensor (not shown) and a cooling water supply pump (not shown) for controlling the tube to be constantly submerged in the cooling water, and a temperature sensor (not shown) for controlling the temperature of the cooling water is provided. It is provided.

블로워(60)는 냉각수조(50)의 튜브 이동방향 단부에 설치되어 냉각수조를 통과한 튜브의 표면에 맺힌 물방물과 같은 수분을 건조하여 제거시키는 기능을 수행한다.The blower 60 is installed at the end of the tube moving direction of the cooling water tank 50 to dry and remove moisture such as water droplets formed on the surface of the tube passing through the cooling water tank.

이러한 블로워(60)에 의해 표면이 완전히 건조된 튜브(T)는 이동 및 보관 시 세균 등 미생물의 번식을 예방할 수 있다.Tube (T) whose surface is completely dried by the blower 60 can prevent the growth of microorganisms such as bacteria during movement and storage.

여기서, 블로워(60)는 당업자에게 자명한 것이므로 그 구체적인 구성에 대한 설명은 생략한다.Here, since the blower 60 is obvious to those skilled in the art, a detailed description thereof will be omitted.

한편, 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치(100)는 튜브(T)의 표면이 공기 중에 포함된 각종 세균이나 미세입자 등으로 인해 오염되는 것을 방지하기 위해 청정한 공기가 순환하는 클리닝 룸 내에 설치함이 바람직하다.On the other hand, the medical port tube extrusion molding apparatus 100 according to an embodiment of the present invention, the cleaning of the clean air circulating in order to prevent contamination of the surface of the tube (T) due to various bacteria or fine particles contained in the air It is preferable to install in a room.

이상과 같이 구성된 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치의 작동상태를 그를 이용한 압출성형방법과 연계하여 설명하면 다음과 같다.If described in connection with the extrusion method using the medical port tube extrusion molding apparatus according to an embodiment of the present invention configured as described above as follows.

먼저, 제1,2,3압출기(10a,10b,10c)들의 호퍼((11a,11b,11c)를 통해 공급되는 서로 다른 수지원료는 각각의 압출기 내의 강(鋼)으로 만든 가열실린더 속에서 가열되고 연화(軟化) 용융되어 스크루의 회전에 의해 혼련(混練)과 압축을 받으면서 앞쪽으로 수송되고, 각각의 압출기들과 연결된 성형다이스의 주입구(21a,21b,21c)를 통해 성형다이스의 압출유로(22a,22b,22c)에 연직으로 공급된다.First, different feedstocks supplied through the hoppers 11a, 11b and 11c of the first, second and third extruders 10a, 10b and 10c are heated in a heating cylinder made of steel in each extruder. And softened, melted, kneaded and compressed by the rotation of the screw, and transported forward, and the extrusion flow path of the molding die through the injection holes 21a, 21b, 21c of the molding die connected to the extruders ( 22a, 22b, 22c are vertically supplied.

이렇게 공급된 용융수지는 각각 성형다이스의 제1,2,3압출유로(22a,22b,22c)를 통과하여 개구부(23)를 통해 연직으로 압출된다. 이때, 개구부(23)로부터 압출되는 용융수지는 에어노즐(28)을 통해 성형다이스의 중공부(24)로 공급되는 공기에 의해 두께와 외경이 균일하게 유지되는 튜블라 형상을 갖게 되고, 진공사이징탱크(30)를 통과하면서 내외부의 압력차이 즉, 튜브(T)의 내부에는 대기압이 작용하고, 이를 감싸고 있는 형태의 진공사이징탱크(30)의 내부에는 진공압이 작용하면서 튜브(T)가 바깥쪽으로 팽창하므로 인해 한층 안정된 정원 상태를 유지하게 되며, 그 상태에서 냉각수에 의해 급속하게 냉각 및 경화되게 된다.The molten resin thus supplied is vertically extruded through the opening 23 through the first, second and third extrusion passages 22a, 22b and 22c of the molding die. At this time, the molten resin extruded from the opening 23 has a tubular shape in which the thickness and the outer diameter are uniformly maintained by the air supplied to the hollow portion 24 of the molding die through the air nozzle 28, and vacuum sizing While passing through the tank 30, the pressure difference between the inside and the outside, that is, the atmospheric pressure acts on the inside of the tube (T), while the vacuum pressure acts on the inside of the vacuum sizing tank (30) of the shape surrounding the tube (T) outside. Expansion to the side maintains a more stable garden state, where it is rapidly cooled and hardened by the coolant.

그리고 진공사이징탱크(30)를 통과한 튜브는 진공사이징탱크의 하단에 설치된 냉각수공급관(38)을 통해 튜브(T)의 표면을 따라 하부로 지속적으로 흘러내리는 냉각수에 의해 재냉각된 상태로 냉각수조(50)를 연이어 통과하게 된다. 이 과정에서 냉각수조(50)의 내부에 채워진 냉각수에 의하여 재차 냉각됨으로써 튜브(T)가 더욱 안정된 형태를 유지하게 된다.The tube passing through the vacuum sizing tank 30 is recooled by the cooling water continuously flowing downward along the surface of the tube T through the cooling water supply pipe 38 installed at the bottom of the vacuum sizing tank. Pass 50 in succession. In this process, the tube T is further cooled by cooling water filled in the cooling water tank 50 to maintain a more stable shape.

또한, 냉각수조(50)를 통과한 튜브(T)는 블로워(60)에 의해 표면에 맺힌 물방울과 같은 수분이 완전히 제거되고, 다수의 아이들 롤러를 거쳐 권취수단(70)에 의해 릴에 감기는데, 아이들 롤러를 거치는 동안 대기 중의 공기에 의해 또는 별도의 설비를 갖춘 클리닝 룸의 정화된 공기에 의해 자연 냉각 및 건조될 뿐만 아니라, 내부의 응력이 완전히 제거되어 조직이 미세화 된다.In addition, the tube T passing through the cooling water tank 50 is completely removed moisture such as water droplets formed on the surface by the blower 60, and wound around the reel by the winding means 70 through a plurality of idle rollers. Not only is it naturally cooled and dried by air in the atmosphere while passing through the idle roller, but also by purified air in a cleaning room equipped with a separate facility, as well as the internal stresses are completely removed to refine the tissue.

여기서, 권취수단(70)은 블로워(60)와 마찬가지로 당업자에게 자명하므로 그 구체적인 구성에 대한 설명은 생략한다.Here, since the winding means 70 is apparent to those skilled in the art, as in the blower 60, a detailed description thereof will be omitted.

한편, 본 발명은 상술한 실시예 및 첨부된 도면에 의해 한정되는 것이 아니고, 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 치환 및 균등한 타 실시예로 변경할 수 있음은 본 발명이 속하는 기술분야에서 통상의 지식을 가진자에게 있어서 명백할 것이다.On the other hand, the present invention is not limited to the above-described embodiment and the accompanying drawings, it can be changed to other embodiments equivalent to substitution and equivalent within the scope without departing from the spirit of the present invention in the technical field to which the present invention belongs It will be apparent to those of ordinary skill.

도 1은 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치를 개략적으로 나타낸 구성도,1 is a schematic view showing a medical pot tube extrusion molding apparatus according to an embodiment of the present invention,

도 2는 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치의 성형다이스를 나타낸 측단면도,Figure 2 is a side cross-sectional view showing the molding die of the medical pot tube extrusion molding apparatus according to an embodiment of the present invention,

도 3은 본 발명의 실시예에 따른 의료용 포트 튜브 압출성형장치에 의해 압출된 포트 튜브의 정단면도.Figure 3 is a front sectional view of the port tube extruded by the medical port tube extrusion machine according to an embodiment of the present invention.

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

10: 압출기 11: 호퍼10: Extruder 11: Hopper

20: 성형다이스 21: 주입구20: molding die 21: injection hole

22: 압출유로 23: 개구부22: extrusion flow path 23: opening

24: 중공부 28: 에어노즐24: hollow portion 28: air nozzle

30: 진공사이징탱크 38: 냉각수공급관30: vacuum sizing tank 38: cooling water supply pipe

40: 테이크 업 롤러 50: 냉각수조40: take up roller 50: cooling water tank

60: 블로워 70: 권취수단60: blower 70: winding-up means

100: 압출성형장치100: extrusion molding device

Claims (7)

서로 다른 수지원료를 각각 공급받아 연화 및 용융시키고, 이를 혼련된 상태로 압축하여 공급하는 제1,2,3압출기들과;First, second and third extruders that receive different water support materials, respectively, soften and melt, and compress and supply them in a kneaded state; 상기 제1,2,3압출기들로부터 용융된 수지를 각각 공급받아 다층형 관상 튜브를 연직으로 압출하는 성형다이스와;A molding die which receives molten resin from the first, second and third extruders, respectively and extrudes the multilayer tubular tube vertically; 상기 성형다이스에서 밀려나오는 관상의 튜브를 냉각 및 진공압을 이용해 외형을 안정화시키는 진공사이징탱크와;A vacuum sizing tank for cooling the tubular tube pushed out of the forming die and stabilizing the appearance by using a vacuum pressure; 상기 진공사이징탱크를 통과한 튜브를 일정한 속도로 잡아당겨 이송시키는 테이크 업 롤러와;A take-up roller which pulls and transfers the tube passing through the vacuum sizing tank at a constant speed; 상기 테이크 업 롤러에 의해 안내 이송되는 튜브를 냉각시키는 냉각수조; 및Cooling water tank for cooling the tube guided by the take-up roller; And 상기 냉각수조의 튜브 이동방향 단부에 설치되어 냉각수조를 통과한 튜브의 표면을 건조시키는 블로워; A blower installed at an end of the tube in the direction of movement of the cooling water tank to dry the surface of the tube passing through the cooling water tank; 를 포함하는 의료용 포트 튜브 압출성형장치.Medical port tube extrusion molding device comprising a. 제 1 항에 있어서,The method of claim 1, 상기 성형다이스의 상부에는,On the upper part of the molding die, 별도의 공기공급장치로부터 전달받은 일정한 압력의 공기를 성형다이스의 중공부로 공급하는 에어노즐을 포함하는 의료용 포트 튜브 압출성형장치.Medical port tube extrusion molding device comprising an air nozzle for supplying a constant pressure air received from a separate air supply to the hollow portion of the molding die. 제 1 항에 있어서,The method of claim 1, 상기 성형다이스는,The molding die, 상기 제1,2,3압출기들에 각기 연결되는 주입구와 용융수지가 압출되어 밀려나오는 개구부 사이에 제1압출유로, 제2압출유로, 제3압출유로를 형성하여 지름이 서로 다른 세 겹의 층을 갖는 관상 튜브가 일체로 압출되는 의료용 포트 튜브 압출성형장치.Three layers having different diameters by forming a first extrusion passage, a second extrusion passage, and a third extrusion passage between an injection hole connected to each of the first, second and third extruders and an opening through which the molten resin is extruded and pushed out. Medical port tube extrusion apparatus is integrally extruded tubular tube having a. 제 1 항에 있어서,The method of claim 1, 상기 진공사이징탱크의 하단에는,At the bottom of the vacuum sizing tank, 진공사이징탱크를 통과한 튜브의 표면을 따라 외부에서 공급되는 냉각수를 흘러내리는 냉각수공급관이 설치된 의료용 포트 튜브 압출성형장치.Medical port tube extrusion molding machine is provided with a cooling water supply pipe flowing down the cooling water supplied from the outside along the surface of the tube passed through the vacuum sizing tank. 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 4, 상기 진공사이징탱크는,The vacuum sizing tank, 상하 일정한 간격을 두고 복수로 배열 설치된 의료용 포트 튜브 압출성형장치.Medical port tube extrusion machine installed in plural number at regular intervals. 제 1 항 내지 제 4 항 중 어느 한 항에 있어서,The method according to any one of claims 1 to 4, 상기 냉각수조는,The cooling water tank, 냉각수가 순환되면서 일정한 수위와 온도가 유지되는 의료용 포트 튜브 압출성형장치.Medical port tube extrusion machine that maintains constant water level and temperature as cooling water circulates. 다음의 각 공정을 포함하는 의료용 포트 튜브 압출성형방법.Medical port tube extrusion method comprising the following each step. (가) 서로 다른 수지원료를 호퍼를 통해 제1,2,3압출기들로 각각 공급하는 제1공정(A) First process of supplying different support fees to the first, second and third extruders, respectively (나) 압출기로 공급된 각각의 수지원료를 가열하여 연화 및 용융시키고, 스크루의 회전에 의해 혼련과 압축된 상태로 성형다이스로 밀어내어 관상의 튜브를 연직으로 압출하는 제2공정(B) a second process of heating and softening each water support material supplied to the extruder, and extruding the tubular tube vertically by pushing the molding die in a kneaded and compressed state by rotating the screw; (다) 성형다이스에서 압출된 튜브를 진공사이징탱크의 냉각수 및 진공압을 이용하여 일정한 형태로 안정화시키는 제3공정(C) Third step of stabilizing the tube extruded from the forming die into a certain shape by using the cooling water and the vacuum pressure of the vacuum sizing tank (라) 진공사이징탱크를 통과한 튜브의 표면에 냉각수를 연속적으로 흘러내려서 냉각하는 제4공정(D) Fourth step of cooling by continuously flowing cooling water on the surface of the tube passing through the vacuum sizing tank (마) 냉각된 튜브를 냉각수조를 통과시켜서 재차 냉각하는 제5공정(E) Fifth step of cooling the cooled tube again through the cooling water tank (바) 재냉각된 튜브의 표면을 블로워로 건조하는 제6공정(F) Sixth step of drying the surface of the recooled tube with a blower
KR1020070132384A 2007-12-17 2007-12-17 Medical port tube for extrusion molding device and process for producing the same KR100925249B1 (en)

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