CS231251B1 - Revolving foil head with cooled internal cavity of foil tube - Google Patents

Revolving foil head with cooled internal cavity of foil tube Download PDF

Info

Publication number
CS231251B1
CS231251B1 CS794269A CS426979A CS231251B1 CS 231251 B1 CS231251 B1 CS 231251B1 CS 794269 A CS794269 A CS 794269A CS 426979 A CS426979 A CS 426979A CS 231251 B1 CS231251 B1 CS 231251B1
Authority
CS
Czechoslovakia
Prior art keywords
head
annular
rotating
ring
film
Prior art date
Application number
CS794269A
Other languages
Czech (cs)
English (en)
Inventor
Helmar Franz
Bodo Tragsdorf
Original Assignee
Helmar Franz
Bodo Tragsdorf
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 Helmar Franz, Bodo Tragsdorf filed Critical Helmar Franz
Publication of CS231251B1 publication Critical patent/CS231251B1/cs

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
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/9125—Cooling of hollow articles of tubular films 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/33—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles with parts rotatable relative to each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Continuous Casting (AREA)
CS794269A 1978-07-07 1979-06-20 Revolving foil head with cooled internal cavity of foil tube CS231251B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD20658478A DD137553B1 (de) 1978-07-07 1978-07-07 Rotierendes folienblaswerkzeug mit folieninnenkuehlung

Publications (1)

Publication Number Publication Date
CS231251B1 true CS231251B1 (en) 1984-10-15

Family

ID=5513515

Family Applications (1)

Application Number Title Priority Date Filing Date
CS794269A CS231251B1 (en) 1978-07-07 1979-06-20 Revolving foil head with cooled internal cavity of foil tube

Country Status (8)

Country Link
BG (1) BG32598A1 (fr)
CS (1) CS231251B1 (fr)
DD (1) DD137553B1 (fr)
DE (1) DE2915835C2 (fr)
HU (1) HU186358B (fr)
RO (1) RO83006B (fr)
SU (1) SU1046111A1 (fr)
YU (1) YU157479A (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326870A1 (de) * 1982-09-02 1984-03-08 VEB Kombinat Umformtechnik "Herbert Warnke" Erfurt, DDR 5010 Erfurt Rotierendes folienblaswerkzeug mit zentraler schmelzezufuehrung und folieninnenkuehlung
US4784594A (en) * 1983-03-11 1988-11-15 Mobil Oil Corporation Single lip rotary tubular extrusion die
DE3481901D1 (de) * 1983-03-11 1990-05-17 Mobil Oil Corp Einlippige drehbare duese.
DE3331832C1 (de) * 1983-09-03 1985-01-10 Reifenhäuser GmbH & Co. Maschinenfabrik, 5210 Troisdorf Vertikal arbeitender Folienblaskopf
US20100072655A1 (en) * 2008-09-23 2010-03-25 Cryovac, Inc. Die, system, and method for coextruding a plurality of fluid layers
DE102020127105A1 (de) 2020-10-15 2022-04-21 Reifenhäuser GmbH & Co. KG Maschinenfabrik Blasfolienanlage, verfahren zum herstellen einer blasfolienbahn und damit hergestellte folie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1729129A1 (de) * 1968-03-18 1971-06-09 Windmoeller & Hoelscher Folienblaskopf zur Herstellung von Schlauchfolien
US3933958A (en) * 1971-03-22 1976-01-20 Reynolds Metals Company Method of making tubular plastic film
DE7412102U (de) * 1974-04-05 1975-12-11 Windmoeller & Hoelscher Drehbarer Folienblaskopf zur Herstellung von Schlauchfolien aus thermoplastischen Massen
DE2445545A1 (de) * 1974-09-24 1976-04-01 Windmoeller & Hoelscher Folienblaskopf fuer die herstellung von schlauchfolien
DE2509024C3 (de) * 1975-03-01 1985-04-25 Reifenhäuser KG, 5210 Troisdorf Vorrichtung für die Herstellung von Kunststoffolien durch Blasen
DE2610335A1 (de) * 1975-04-23 1976-11-04 Plast Elastverarbeitungsmasch Folienblaswerkzeug

Also Published As

Publication number Publication date
DE2915835A1 (de) 1980-01-17
RO83006A (fr) 1984-08-17
DD137553A1 (de) 1979-09-12
DD137553B1 (de) 1980-12-10
BG32598A1 (en) 1982-09-15
YU157479A (en) 1982-10-31
SU1046111A1 (ru) 1983-10-07
RO83006B (ro) 1984-09-30
DE2915835C2 (de) 1983-12-22
HU186358B (en) 1985-07-29

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