IT1034162B - COOLING DEVICE FOR A TUBULAR OF THERMOPLASTIC FILM PRODUCED BY MEANS OF A BLOWING HEAD - Google Patents

COOLING DEVICE FOR A TUBULAR OF THERMOPLASTIC FILM PRODUCED BY MEANS OF A BLOWING HEAD

Info

Publication number
IT1034162B
IT1034162B IT21124/75A IT2112475A IT1034162B IT 1034162 B IT1034162 B IT 1034162B IT 21124/75 A IT21124/75 A IT 21124/75A IT 2112475 A IT2112475 A IT 2112475A IT 1034162 B IT1034162 B IT 1034162B
Authority
IT
Italy
Prior art keywords
tubular
cooling device
thermoplastic film
film produced
blowing head
Prior art date
Application number
IT21124/75A
Other languages
Italian (it)
Original Assignee
Windmoeller & Hoelscher
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 Windmoeller & Hoelscher filed Critical Windmoeller & Hoelscher
Application granted granted Critical
Publication of IT1034162B publication Critical patent/IT1034162B/en

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
    • B29C48/913—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
    • 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
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
IT21124/75A 1974-04-22 1975-03-11 COOLING DEVICE FOR A TUBULAR OF THERMOPLASTIC FILM PRODUCED BY MEANS OF A BLOWING HEAD IT1034162B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2419212 1974-04-22

Publications (1)

Publication Number Publication Date
IT1034162B true IT1034162B (en) 1979-09-10

Family

ID=5913503

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21124/75A IT1034162B (en) 1974-04-22 1975-03-11 COOLING DEVICE FOR A TUBULAR OF THERMOPLASTIC FILM PRODUCED BY MEANS OF A BLOWING HEAD

Country Status (5)

Country Link
JP (1) JPS50139855A (en)
BR (1) BR7502418A (en)
CH (1) CH581540A5 (en)
FR (1) FR2267873B3 (en)
IT (1) IT1034162B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5374568A (en) * 1976-12-15 1978-07-03 Placo Co Ltd Inflated film forming stabilizer
DE2926262A1 (de) * 1979-06-29 1981-01-15 Demag Kunststofftech Kuehlvorrichtung fuer mittels eines blaskopfes hergestellte kunststoff- schlauchfolien

Also Published As

Publication number Publication date
JPS50139855A (en) 1975-11-08
FR2267873B3 (en) 1977-11-18
CH581540A5 (en) 1976-11-15
BR7502418A (en) 1976-03-09
FR2267873A1 (en) 1975-11-14

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