GB808283A - An axial extruding machine - Google Patents

An axial extruding machine

Info

Publication number
GB808283A
GB808283A GB27861/55A GB2786155A GB808283A GB 808283 A GB808283 A GB 808283A GB 27861/55 A GB27861/55 A GB 27861/55A GB 2786155 A GB2786155 A GB 2786155A GB 808283 A GB808283 A GB 808283A
Authority
GB
United Kingdom
Prior art keywords
tube
screw
orifice
guide tube
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB27861/55A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BUZULUK KOMAROV
Original Assignee
BUZULUK KOMAROV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BUZULUK KOMAROV filed Critical BUZULUK KOMAROV
Publication of GB808283A publication Critical patent/GB808283A/en
Expired legal-status Critical Current

Links

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
    • 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
    • B29C48/06—Rod-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
    • 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
    • B29C48/05—Filamentary, e.g. strands
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • 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
    • 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
    • B29C48/445—Coaxially arranged screws, i.e. one within the other
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/84—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders by heating or cooling the feeding screws
    • B29C48/85—Cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating Apparatus (AREA)

Abstract

808,283. Coating wires &c. by extrusion. BUZULUK KOMAROV NARODNI PODNIK, and NOVAK, V. Sept. 30, 1955 [Oct. 25, 1954], No. 27861/55. Class 87(2). A hollow screw conveyer 1 is mounted on a tube 3, both rotatable together, and a double thread 12 on the surface of the supporting tube 3 provides a channel for cooling the screw by liquid which enters from a chamber 17 through a port 18 and passes along a groove 13 and leaves along a groove 14 and through a chamber 19. The screw 1 fits in the liner 11 of a cylinder 10 from which a nozzle 9 is supported through a member 21, being held agains the pressure of the material by a screw cap 22. The inside of the nozzle 9 and member 21 together form continous converging internal conical surfaces. A guide tube 5 within the tube 3 narrows to a discharge opening 24 coaxial with the orifice 23 of the nozzle 9. The guide tube 5 can move axially within limits but is prevented from rotation. The discharge ends of the supporting tube 3 and of the guide tube 5 are enlarged and shaped so that together they form external conical surfaces stepped to receive a ring 8, supported by webs 25, which centre the end of the tube 5 and is also shaped to form part of an external conical surface. Coating material, e.g. insulation, is impelled by the screw 1 and guided to the orifice 23 between the internal and external conical surfaces. Elongated material to be coated, e.g. wire, is caused, in known manner, to pass through the guide tube 5 and its opening 24, and the wire leaves the orifice 23 provided with a uniform coating. The cone parts 2 and 4 at the ends of the tubes 3 and 5 are formed with opposite transverse bearing faces and the back pressure of the material behind the orifice forces the faces together, the tube 5 shifting axially, and seals against escape of material. When the back pressure is insufficient the faces are kept in contact by a spring 7 which presses on a flange 26 on the end of the tube 5, through which also bolts 6 pass to prevent rotation.
GB27861/55A 1954-10-25 1955-09-30 An axial extruding machine Expired GB808283A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS808283X 1954-10-25

Publications (1)

Publication Number Publication Date
GB808283A true GB808283A (en) 1959-02-04

Family

ID=5455682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27861/55A Expired GB808283A (en) 1954-10-25 1955-09-30 An axial extruding machine

Country Status (1)

Country Link
GB (1) GB808283A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832588A (en) * 1986-01-30 1989-05-23 Viradan A/S Crosshead extruders
US5286183A (en) * 1991-05-13 1994-02-15 Pirelli Cavi S.P.A. Extruder head for applying coatings of polymeric material to semifinished products of elongated cylindrical conformation
US5332379A (en) * 1990-12-20 1994-07-26 Paul Troester Maschinenfabrik Extrusion head for sheathing elongated objects

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4832588A (en) * 1986-01-30 1989-05-23 Viradan A/S Crosshead extruders
US5332379A (en) * 1990-12-20 1994-07-26 Paul Troester Maschinenfabrik Extrusion head for sheathing elongated objects
US5286183A (en) * 1991-05-13 1994-02-15 Pirelli Cavi S.P.A. Extruder head for applying coatings of polymeric material to semifinished products of elongated cylindrical conformation

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