FR2374149A1 - SHEATH FORMING AND SIZING DEVICE IN A TUBULAR DUCTING EXTRUSION-BLOWING PLANT - Google Patents

SHEATH FORMING AND SIZING DEVICE IN A TUBULAR DUCTING EXTRUSION-BLOWING PLANT

Info

Publication number
FR2374149A1
FR2374149A1 FR7637896A FR7637896A FR2374149A1 FR 2374149 A1 FR2374149 A1 FR 2374149A1 FR 7637896 A FR7637896 A FR 7637896A FR 7637896 A FR7637896 A FR 7637896A FR 2374149 A1 FR2374149 A1 FR 2374149A1
Authority
FR
France
Prior art keywords
sheath
extrusion
mandrel
forming
sizing device
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.)
Granted
Application number
FR7637896A
Other languages
French (fr)
Other versions
FR2374149B1 (en
Inventor
Michel Blin
Gerard Lamure
Jean-Claude Moulies
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.)
ATO Chimie SA
Original Assignee
ATO Chimie SA
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 ATO Chimie SA filed Critical ATO Chimie SA
Priority to FR7637896A priority Critical patent/FR2374149A1/en
Priority to GB51612/77A priority patent/GB1573574A/en
Priority to DE19772756039 priority patent/DE2756039A1/en
Priority to IT30778/77A priority patent/IT1088777B/en
Publication of FR2374149A1 publication Critical patent/FR2374149A1/en
Application granted granted Critical
Publication of FR2374149B1 publication Critical patent/FR2374149B1/fr
Granted 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
    • B29C48/25—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
    • B29C48/902—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 internally
    • 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
    • B29C48/25—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
    • 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
    • B29C48/03—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

Landscapes

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

Abstract

La présente invention a pour objet un dispositif de formage et de calibrage de gaine dans une installation d'extrusion-soufflage de gaines tubulaires refroidies sur mandrin interne. Elle est caractérisée en ce que le dispositif comporte au moins un manchon entourant la gaine et coaxial à la filière et au mandrin, ledit manchon s'étendant axialement d'une région voisine de la sortie de la filière à la partie cylindrique du mandrin et comprenant au moins une cloison transversale qui présente en son centre une ouverture agencée pour épouser avec un léger jeu le contour du mandrin et de la gaine qui entoure ce derncer, ledit manchon ménageant ainsi au moins une chambre annulaire autour de la gaine, le dispositif pour y établir une dépression et des moyens de réglage de cette dépression. Elle se rapporte à un dispositif de formage et de calibrage de gaine dans une installation d'extrusion-soufflage de gaines tubulaires.The present invention relates to a device for forming and calibrating a sheath in an extrusion-blow molding installation for tubular sheaths cooled on an internal mandrel. It is characterized in that the device comprises at least one sleeve surrounding the sheath and coaxial with the die and the mandrel, said sleeve extending axially from a region close to the outlet of the die to the cylindrical part of the mandrel and comprising at least one transverse partition which has in its center an opening arranged to follow with a slight play the contour of the mandrel and of the sheath which surrounds the latter, said sleeve thus forming at least one annular chamber around the sheath, the device for therein establishing a depression and means of adjusting this depression. It relates to a device for forming and calibrating a sheath in an extrusion-blow molding installation for tubular sheaths.

FR7637896A 1976-12-16 1976-12-16 SHEATH FORMING AND SIZING DEVICE IN A TUBULAR DUCTING EXTRUSION-BLOWING PLANT Granted FR2374149A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR7637896A FR2374149A1 (en) 1976-12-16 1976-12-16 SHEATH FORMING AND SIZING DEVICE IN A TUBULAR DUCTING EXTRUSION-BLOWING PLANT
GB51612/77A GB1573574A (en) 1976-12-16 1977-12-12 Manufacture of tubular sheaths
DE19772756039 DE2756039A1 (en) 1976-12-16 1977-12-15 DEVICE FOR DEFORMING AND CALIBRATING A PLASTIC HOSE PRODUCED BY THE BLOW INJECTION MOLDING PROCESS
IT30778/77A IT1088777B (en) 1976-12-16 1977-12-16 MOLDING AND CALIBRATION DEVICE OF A SHEATH IN A BLOW-EXTRUSION INSTALLATION OF TUBULAR SHEATHS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7637896A FR2374149A1 (en) 1976-12-16 1976-12-16 SHEATH FORMING AND SIZING DEVICE IN A TUBULAR DUCTING EXTRUSION-BLOWING PLANT

Publications (2)

Publication Number Publication Date
FR2374149A1 true FR2374149A1 (en) 1978-07-13
FR2374149B1 FR2374149B1 (en) 1979-03-30

Family

ID=9181135

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7637896A Granted FR2374149A1 (en) 1976-12-16 1976-12-16 SHEATH FORMING AND SIZING DEVICE IN A TUBULAR DUCTING EXTRUSION-BLOWING PLANT

Country Status (4)

Country Link
DE (1) DE2756039A1 (en)
FR (1) FR2374149A1 (en)
GB (1) GB1573574A (en)
IT (1) IT1088777B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231637A2 (en) * 1985-12-24 1987-08-12 Xerox Corporation Process and apparatus for extruding tubular films

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319604A1 (en) * 1983-05-30 1984-12-06 Fa. Klaus Reinhold, 4540 Lengerich CALIBRATION DEVICE ON AN EXTRUDER
US4655988A (en) * 1985-09-12 1987-04-07 Tomi Machinery Manufacturing Co., Ltd. Method and an apparatus for cooling and guiding thermoplastic synthetic resin films
GB8527300D0 (en) * 1985-11-06 1985-12-11 Victaulic Plc Extrusion of products
DE4405463A1 (en) * 1994-02-21 1995-08-24 Windmoeller & Hoelscher Method and device for cooling the tube made of thermoplastic melt extruded from a film blowing head
US9434097B2 (en) 2009-11-10 2016-09-06 Windmoeller & Hoelscher Kg Device and method for calibrating film tubing
DE102012101036A1 (en) 2012-02-08 2013-08-08 Manfred Binder Adjustable calibration sleeve
US10391697B2 (en) * 2016-01-15 2019-08-27 Addex, Inc. Controlled pressure enclosure
IT202100026603A1 (en) * 2021-10-18 2023-04-18 Pietro Lualdi SYSTEM AND METHOD OF COOLING A PLASTIC FILM IN BLOW FORMING

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0231637A2 (en) * 1985-12-24 1987-08-12 Xerox Corporation Process and apparatus for extruding tubular films
EP0231637A3 (en) * 1985-12-24 1989-01-25 Xerox Corporation Process and apparatus for extruding tubular films

Also Published As

Publication number Publication date
IT1088777B (en) 1985-06-10
FR2374149B1 (en) 1979-03-30
DE2756039A1 (en) 1978-06-29
GB1573574A (en) 1980-08-28

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Legal Events

Date Code Title Description
ST Notification of lapse