ES478833A1 - Perfeccionamientos en los dispositivos para mantener la for-ma de vainas flexibles extruidas. - Google Patents

Perfeccionamientos en los dispositivos para mantener la for-ma de vainas flexibles extruidas.

Info

Publication number
ES478833A1
ES478833A1 ES478833A ES478833A ES478833A1 ES 478833 A1 ES478833 A1 ES 478833A1 ES 478833 A ES478833 A ES 478833A ES 478833 A ES478833 A ES 478833A ES 478833 A1 ES478833 A1 ES 478833A1
Authority
ES
Spain
Prior art keywords
strip
air
edge
apertures
aperture
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
ES478833A
Other languages
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of ES478833A1 publication Critical patent/ES478833A1/es
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
    • B29C48/92—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
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B29C2948/92133—Width or height
    • 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
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92428—Calibration, after-treatment, or cooling zone
    • 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
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/92609—Dimensions
    • B29C2948/92628—Width or height
    • 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
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • 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

Landscapes

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

Abstract

Perfeccionamientos en los dispositivos para mantener la forma de vainas flexibles extruidas, y más concretamente de vainas extruidas por una hilera circular en el interior de la que es insuflado aire por el punzón para mantener la vaina en forma y para enfriarla, la cual vaina da lugar a la formación de una banda, caracterizados por comprender dos placas paralelos a la banda entre las cuales para ésta, con apoyo de uno de los bordes de banda sobre una cara de referencia, presentando las dos placas a nivel del otro borde de la banda, dos lumbreras idénticas, una frente a la otra, de manera que este borde de la banda obture parcialmente el pasaje definido entre las dos lumbreras, estando conectada una de estas aberturas a un conducto de alimentación de un fluido comprensible, como el aire, a una presión determinada, y estando conectada la otra lumbrera a un conducto de escape el fluido alimentado por el primer conducto, mandando la presión de fluido en el segundo conducto la presión de aire en el cabezal de la extrusionadora, de manera que esta última aumente cuando la presión de fluido aumenta, e inversamente.
ES478833A 1978-04-21 1979-03-21 Perfeccionamientos en los dispositivos para mantener la for-ma de vainas flexibles extruidas. Expired ES478833A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CM5647778 1978-04-21

Publications (1)

Publication Number Publication Date
ES478833A1 true ES478833A1 (es) 1979-08-01

Family

ID=4574624

Family Applications (1)

Application Number Title Priority Date Filing Date
ES478833A Expired ES478833A1 (es) 1978-04-21 1979-03-21 Perfeccionamientos en los dispositivos para mantener la for-ma de vainas flexibles extruidas.

Country Status (8)

Country Link
BE (1) BE875721A (es)
CH (1) CH627964A5 (es)
DE (1) DE2911235A1 (es)
ES (1) ES478833A1 (es)
FR (1) FR2423323A1 (es)
GB (1) GB2019306B (es)
IT (1) IT1112250B (es)
PT (1) PT69457A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019127454B4 (de) 2019-03-29 2023-05-04 Windmöller & Hölscher Kg System zur verbesserten Einführung einer Trennvorrichtung sowie Blasfolienanlage sowie Verfahren zur Herstellung und Bereitstellung von zumindest zwei Folienbahnen aus Kunststoff in einer Blasfolienanlage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1030187A (en) * 1964-03-05 1966-05-18 Canadian Ind Layflat tubular film manufacture
US3992107A (en) * 1975-08-27 1976-11-16 Union Carbide Corporation Automatic flat width control

Also Published As

Publication number Publication date
CH627964A5 (en) 1982-02-15
BE875721A (fr) 1979-10-22
GB2019306A (en) 1979-10-31
PT69457A (fr) 1979-05-01
DE2911235C2 (es) 1989-05-03
IT1112250B (it) 1986-01-13
GB2019306B (en) 1982-11-10
FR2423323B1 (es) 1984-02-17
IT7921994A0 (it) 1979-04-19
FR2423323A1 (fr) 1979-11-16
DE2911235A1 (de) 1979-12-06

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19971001