IT1260313B - Dispositivo per la regolarizzazione dell'aria di raffreddamento esterna di un estrusore di foglie tubolari - Google Patents

Dispositivo per la regolarizzazione dell'aria di raffreddamento esterna di un estrusore di foglie tubolari

Info

Publication number
IT1260313B
IT1260313B ITBZ920016A ITBZ920016A IT1260313B IT 1260313 B IT1260313 B IT 1260313B IT BZ920016 A ITBZ920016 A IT BZ920016A IT BZ920016 A ITBZ920016 A IT BZ920016A IT 1260313 B IT1260313 B IT 1260313B
Authority
IT
Italy
Prior art keywords
leaf
extruder
cooling air
external cooling
tubular
Prior art date
Application number
ITBZ920016A
Other languages
English (en)
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
Publication of ITBZ920016A0 publication Critical patent/ITBZ920016A0/it
Publication of ITBZ920016A1 publication Critical patent/ITBZ920016A1/it
Application granted granted Critical
Publication of IT1260313B publication Critical patent/IT1260313B/it

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
    • B29C48/908—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 characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • 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
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
    • 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
    • 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
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Un dispositivo serve alla regolazione dell'aria esterna di raffreddamento di un estrusore di foglie tubolari, per mezzo del quale da una testa di filiera (2) viene estrusa una foglia tubolare (3). Affinché l'aria esterna di raffreddamento possa essere regolata nel punto d'apertura della foglia, indipendentemente dal fatto di quanto sia distante il punto d'apertura della foglia dalla filiera dell'estrusore, sono previste ali (7), uniformemente distribuite lungo il perimetro della foglia tubolare (3), spostabili in direzione longitudinale della foglia tubolare (3) (unica figura).
ITBZ920016A 1991-05-10 1992-04-27 Dispositivo per la regolarizzazione dell'aria di raffreddamento esterna di un estrusore di foglie tubolari IT1260313B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4115320 1991-05-10
DE4122589A DE4122589A1 (de) 1991-05-10 1991-07-08 Vorrichtung zum regulieren der aussenkuehlluft eines folienschlauchextruders

Publications (3)

Publication Number Publication Date
ITBZ920016A0 ITBZ920016A0 (it) 1992-04-27
ITBZ920016A1 ITBZ920016A1 (it) 1993-10-27
IT1260313B true IT1260313B (it) 1996-04-05

Family

ID=25903534

Family Applications (1)

Application Number Title Priority Date Filing Date
ITBZ920016A IT1260313B (it) 1991-05-10 1992-04-27 Dispositivo per la regolarizzazione dell'aria di raffreddamento esterna di un estrusore di foglie tubolari

Country Status (4)

Country Link
US (1) US5318427A (it)
CA (1) CA2068241A1 (it)
DE (1) DE4122589A1 (it)
IT (1) IT1260313B (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4432513C2 (de) * 1994-09-13 1996-12-12 Reifenhaeuser Masch Anlage für die Herstellung von Blasfolien aus thermoplastischem Kunststoff
US5814278A (en) * 1996-04-26 1998-09-29 Minnesota Mining And Manufacturing Company Shrouded reaction vessel
JP4363849B2 (ja) * 2001-03-05 2009-11-11 ヴィントメーラー ウント ヘルシャー コマンディトゲゼルシャフト 管状フィルムを製造するフィルムダイ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2056292A1 (en) * 1970-11-16 1972-05-31 Windmoeller & Hoelscher Blown plastic film - machine for flattening and take-off from moulding head
DE2658518C2 (de) * 1976-12-23 1983-04-28 Reifenhäuser KG, 5210 Troisdorf Anlage zur Herstellung von Blasfolien aus thermoplastischem Kunststoff
DE2721609C2 (de) * 1977-05-13 1986-07-10 Reifenhäuser KG, 5210 Troisdorf Regeleinrichtung für eine Anlage zur Herstellung von Kunststoffblasfolien
US4209475A (en) * 1978-10-20 1980-06-24 Mobil Oil Corporation Method and apparatus for effecting uniform film thickness
US4606879A (en) * 1985-02-28 1986-08-19 Cerisano Frank D High stalk blown film extrusion apparatus and method
US4842803A (en) * 1988-03-25 1989-06-27 Union Camp Corporation Method and apparatus for extruding blown thermoplastic film tubes
DE3815415A1 (de) * 1988-05-06 1989-11-16 Kiefel Gmbh Paul Hochleistungskuehlverfahren und vorrichtung fuer die herstellung von bi-orientierten folien aus hoch- und mittelmolaren thermoplasten
US4826414A (en) * 1988-08-22 1989-05-02 Mirek Planeta Air rings for production of blown plastic film

Also Published As

Publication number Publication date
CA2068241A1 (en) 1992-11-11
US5318427A (en) 1994-06-07
ITBZ920016A0 (it) 1992-04-27
ITBZ920016A1 (it) 1993-10-27
DE4122589A1 (de) 1992-11-12

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970428