FR2532582B1 - ROTARY FILM BLOWING TOOL WITH CENTRAL MOLTEN FEED AND INTERNAL COOLING OF THE FILM - Google Patents

ROTARY FILM BLOWING TOOL WITH CENTRAL MOLTEN FEED AND INTERNAL COOLING OF THE FILM

Info

Publication number
FR2532582B1
FR2532582B1 FR8313562A FR8313562A FR2532582B1 FR 2532582 B1 FR2532582 B1 FR 2532582B1 FR 8313562 A FR8313562 A FR 8313562A FR 8313562 A FR8313562 A FR 8313562A FR 2532582 B1 FR2532582 B1 FR 2532582B1
Authority
FR
France
Prior art keywords
film
internal cooling
molten feed
blowing tool
rotary
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
FR8313562A
Other languages
French (fr)
Other versions
FR2532582A1 (en
Inventor
Reinhard Teschke
Manfred Garberding
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.)
Umformtechnik Herbert Warnke VEB
Original Assignee
Umformtechnik Herbert Warnke VEB
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
Priority claimed from DD24297582A external-priority patent/DD207620A3/en
Priority claimed from DD24994083A external-priority patent/DD301384A7/en
Application filed by Umformtechnik Herbert Warnke VEB filed Critical Umformtechnik Herbert Warnke VEB
Publication of FR2532582A1 publication Critical patent/FR2532582A1/en
Application granted granted Critical
Publication of FR2532582B1 publication Critical patent/FR2532582B1/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
    • B29C48/25—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)
FR8313562A 1982-09-02 1983-08-22 ROTARY FILM BLOWING TOOL WITH CENTRAL MOLTEN FEED AND INTERNAL COOLING OF THE FILM Expired FR2532582B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DD24297582A DD207620A3 (en) 1982-09-02 1982-09-02 ROTATING FILM BUBBLE TOOL WITH CENTRAL MELT FEED AND FILM COOLING
DD24994083A DD301384A7 (en) 1983-04-18 1983-04-18 ROTATING FILM BUBBLE TOOL WITH CENTRAL MELT FEED AND FILM COOLING

Publications (2)

Publication Number Publication Date
FR2532582A1 FR2532582A1 (en) 1984-03-09
FR2532582B1 true FR2532582B1 (en) 1987-03-20

Family

ID=25747775

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8313562A Expired FR2532582B1 (en) 1982-09-02 1983-08-22 ROTARY FILM BLOWING TOOL WITH CENTRAL MOLTEN FEED AND INTERNAL COOLING OF THE FILM

Country Status (4)

Country Link
DE (1) DE3326870A1 (en)
FR (1) FR2532582B1 (en)
GB (1) GB2126160B (en)
IT (1) IT1170455B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331832C1 (en) * 1983-09-03 1985-01-10 Reifenhäuser GmbH & Co. Maschinenfabrik, 5210 Troisdorf Vertical working die head
DD273742A3 (en) * 1986-09-08 1989-11-29 Schwerin Plastmaschinen ROTATING FILM BUBBLE TOOL WITH CENTRAL MELT FEED AND FILM COOLING
CA1274366A (en) * 1987-03-31 1990-09-25 Robert J. Cole Bubble forming and stabilizing device for use in a continuous extrusion process for making a blown film

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508930C3 (en) * 1975-03-01 1978-12-21 Reifenhaeuser Kg, 5210 Troisdorf Device for the production of plastic films by blowing
DE2509024C3 (en) * 1975-03-01 1985-04-25 Reifenhäuser KG, 5210 Troisdorf Device for the production of plastic films by blowing
DE2610335A1 (en) * 1975-04-23 1976-11-04 Plast Elastverarbeitungsmasch FILM BLOWING TOOL
CH627685A5 (en) * 1978-05-03 1982-01-29 Gottlieb Looser FILM BLOW HEAD FOR THE PRODUCTION OF TUBE FILMS FROM PLASTIC.
DD137553B1 (en) * 1978-07-07 1980-12-10 Helmar Franz ROTATING FILM BUBBLE TOOL WITH FILM INNER COOLING

Also Published As

Publication number Publication date
GB2126160A (en) 1984-03-21
DE3326870C2 (en) 1987-04-16
IT8348904A0 (en) 1983-08-31
FR2532582A1 (en) 1984-03-09
GB2126160B (en) 1986-04-03
GB8323325D0 (en) 1983-10-05
DE3326870A1 (en) 1984-03-08
IT1170455B (en) 1987-06-03

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Legal Events

Date Code Title Description
ST Notification of lapse