RO83006B - DISPOZITIV ROTATIV DE INSUFLAT FOI PREVAZUT CU MIJLOACE DE RACIRE îN INTERIORUL ACESTORA - Google Patents

DISPOZITIV ROTATIV DE INSUFLAT FOI PREVAZUT CU MIJLOACE DE RACIRE îN INTERIORUL ACESTORA

Info

Publication number
RO83006B
RO83006B RO98074A RO9807479A RO83006B RO 83006 B RO83006 B RO 83006B RO 98074 A RO98074 A RO 98074A RO 9807479 A RO9807479 A RO 9807479A RO 83006 B RO83006 B RO 83006B
Authority
RO
Romania
Prior art keywords
intermediate piece
introduction
cooling means
pipes
air
Prior art date
Application number
RO98074A
Other languages
English (en)
Other versions
RO83006A (ro
Inventor
Bodo Tragsdorf
Helmar Franz
Original Assignee
Veb Kombinat Umformtechnik"Herbert Warnke"
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 Veb Kombinat Umformtechnik"Herbert Warnke" filed Critical Veb Kombinat Umformtechnik"Herbert Warnke"
Publication of RO83006A publication Critical patent/RO83006A/ro
Publication of RO83006B publication Critical patent/RO83006B/ro

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)

Abstract

Dispozitiv rotativ de insuflat foi, prevazut cu mijloace de racire în interiorul acestora si de introducere centrala a materialului topit, conform inventiei, este format dintr-o piesa intermediara, prevazuta cu canale de curgere în forma de stea, precum si dintr-un cap de duza cu interstitiu inelar si niste tevi axiale, pentru introducerea si evacuarea aerului, concentrice între ele si legate cu niste tevi de legatura radiala. Piesa intermediara este dispusa stationar între canalele de curgere se desfasoara în forma de stea. Pentru introducerea si evacuarea aerului sînt practicate niste canale, comuinicînd cu niste tevi stationare de introducere si de ecvacuare a aerului. între piesa intermediara si capul de duza cu interstitiu inelar estedispus un inel intermediar rotativ,legat de capul de duza cu interstitiu inelar. în acesta din urma este practicat un canal de curgere, avînf forma unui inel circular si întrerupt de niste nervuri de legatura.
RO98074A 1978-07-07 1979-07-06 DISPOZITIV ROTATIV DE INSUFLAT FOI PREVAZUT CU MIJLOACE DE RACIRE îN INTERIORUL ACESTORA RO83006B (ro)

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 (2)

Publication Number Publication Date
RO83006A RO83006A (ro) 1984-08-17
RO83006B true RO83006B (ro) 1984-09-30

Family

ID=5513515

Family Applications (1)

Application Number Title Priority Date Filing Date
RO98074A RO83006B (ro) 1978-07-07 1979-07-06 DISPOZITIV ROTATIV DE INSUFLAT FOI PREVAZUT CU MIJLOACE DE RACIRE îN INTERIORUL ACESTORA

Country Status (8)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3326870C2 (de) * 1982-09-02 1987-04-16 VEB Kombinat Umformtechnik "Herbert Warnke" Erfurt, DDR 5010 Erfurt Rotierendes Folienblaswerkzeug mit zentraler Schmelzezuführung und Folieninnenkühlung
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
YU157479A (en) 1982-10-31
CS231251B1 (en) 1984-10-15
RO83006A (ro) 1984-08-17
DD137553B1 (de) 1980-12-10
HU186358B (en) 1985-07-29
BG32598A1 (en) 1982-09-15
DE2915835A1 (de) 1980-01-17
DE2915835C2 (de) 1983-12-22
SU1046111A1 (ru) 1983-10-07
DD137553A1 (de) 1979-09-12

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