GB2307881B - An apparatus for heating the film sectors of a tubular film web extruded from a film blowing head - Google Patents

An apparatus for heating the film sectors of a tubular film web extruded from a film blowing head

Info

Publication number
GB2307881B
GB2307881B GB9621672A GB9621672A GB2307881B GB 2307881 B GB2307881 B GB 2307881B GB 9621672 A GB9621672 A GB 9621672A GB 9621672 A GB9621672 A GB 9621672A GB 2307881 B GB2307881 B GB 2307881B
Authority
GB
United Kingdom
Prior art keywords
film
heating
sectors
blowing head
tubular
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 - Fee Related
Application number
GB9621672A
Other versions
GB2307881A (en
GB9621672D0 (en
Inventor
Werner Feistkorn
Klemens Sensen
Ansgar Avermeyer
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of GB9621672D0 publication Critical patent/GB9621672D0/en
Publication of GB2307881A publication Critical patent/GB2307881A/en
Application granted granted Critical
Publication of GB2307881B publication Critical patent/GB2307881B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B13/00—Conditioning or physical treatment of the material to be shaped
    • B29B13/08—Conditioning or physical treatment of the material to be shaped by using wave energy or particle radiation
    • 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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the 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
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • 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
    • B29C48/91—Heating, e.g. for cross linking
    • 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
    • B29C48/91—Heating, e.g. for cross linking
    • B29C48/9105—Heating, e.g. for cross linking of hollow 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
    • B29C48/92—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
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
GB9621672A 1995-11-06 1996-10-17 An apparatus for heating the film sectors of a tubular film web extruded from a film blowing head Expired - Fee Related GB2307881B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19541296A DE19541296C2 (en) 1995-11-06 1995-11-06 Device for heating the film sectors of a film tube extruded from a film blowing head

Publications (3)

Publication Number Publication Date
GB9621672D0 GB9621672D0 (en) 1996-12-11
GB2307881A GB2307881A (en) 1997-06-11
GB2307881B true GB2307881B (en) 1999-04-28

Family

ID=7776736

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9621672A Expired - Fee Related GB2307881B (en) 1995-11-06 1996-10-17 An apparatus for heating the film sectors of a tubular film web extruded from a film blowing head

Country Status (5)

Country Link
AT (1) AT407854B (en)
DE (1) DE19541296C2 (en)
FR (1) FR2740722B1 (en)
GB (1) GB2307881B (en)
IT (1) IT1288267B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19725810B4 (en) * 1997-06-18 2005-07-07 Helmut Knorr Nozzle for dispensing liquefied plastic under pressure
DE102010007658A1 (en) * 2010-02-10 2012-05-10 Case Tech Gmbh Method for drying tubular casings by microwaves

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065930A (en) * 1979-11-23 1981-07-01 Windmoeller & Hoelscher Controlling film thichness at a blown film extruder installation
GB2074349A (en) * 1980-04-18 1981-10-28 Windmoeller & Hoelscher Method of controlling the film thickness of tubular film produced in a blown film extruder installation
GB1603338A (en) * 1977-05-05 1981-11-25 Gen Electric Biaxial film process and rotary apparatus therefor
EP0062909A2 (en) * 1981-04-13 1982-10-20 Gloucester Engineering Co., Inc. An air ring having a circular array of a large multiplicity of substantially parallel cell-like passages in the air flow path leading to the outlet
EP0074526A1 (en) * 1981-08-24 1983-03-23 Gloucester Engineering Co., Inc. Control of tubular film size
US4711747A (en) * 1985-05-21 1987-12-08 Reifenhauser Gmbh & Co. Method of producing blown thermoplastic foil with low thickness tolerances
US4882104A (en) * 1987-04-03 1989-11-21 Cincinnati Milacron, Inc. Method of controlling the thickness of an extruded plastic article
EP0423386A1 (en) * 1989-10-17 1991-04-24 Tomi Machinery Manfuacturing Co., Ltd. Synthetic resin film, method of uniforming the film thickness upon molding of such film and apparatus therefor
EP0425797A1 (en) * 1989-10-31 1991-05-08 WindmÀ¶ller & Hölscher Annular die for extrusion with application to a film extrusion blowing head

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD134052A1 (en) * 1977-12-08 1979-02-07 Jens Haupt ARRANGEMENT FOR THE VISCOSITIZATION LIGHTING OF PLASMA FILMS BY ULTRASOUND
DE2950003C2 (en) * 1979-12-12 1983-08-11 Windmöller & Hölscher, 4540 Lengerich Process for regulating the film thickness on a blown film extruder
DE3002903C2 (en) * 1980-01-28 1986-12-04 Windmöller & Hölscher, 4540 Lengerich Method for controlling the film thickness on a blown film extruder
EP0229708B1 (en) * 1986-01-16 1991-04-24 Micro Denshi Co. Ltd. Microwave heating device
JPS62222827A (en) * 1986-03-25 1987-09-30 Micro Denshi Kk Thermal crosslink apparatus by extrusion molding machine for polymer material
CH672092A5 (en) * 1987-03-31 1989-10-31 Oco Ag Extending flow of injection mould shot - by energising ultrasonic sonotrode at right angles to flow path at area where flow of shot normally ceases
DE3802146C1 (en) * 1988-01-26 1989-02-23 Battenfeld Extrusionstechnik Gmbh, 4970 Bad Oeynhausen, De
DE4236443B4 (en) * 1992-10-28 2005-02-24 Windmöller & Hölscher Kg Method for controlling the temperature of a film blowing head for the production of plastic tubular films
FR2701886B1 (en) * 1993-02-22 1995-06-02 Hutchinson Method for facilitating the flow of an elastomeric material through a tool, implementation system and machine equipped with such a system.

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1603338A (en) * 1977-05-05 1981-11-25 Gen Electric Biaxial film process and rotary apparatus therefor
GB2065930A (en) * 1979-11-23 1981-07-01 Windmoeller & Hoelscher Controlling film thichness at a blown film extruder installation
GB2074349A (en) * 1980-04-18 1981-10-28 Windmoeller & Hoelscher Method of controlling the film thickness of tubular film produced in a blown film extruder installation
EP0062909A2 (en) * 1981-04-13 1982-10-20 Gloucester Engineering Co., Inc. An air ring having a circular array of a large multiplicity of substantially parallel cell-like passages in the air flow path leading to the outlet
EP0074526A1 (en) * 1981-08-24 1983-03-23 Gloucester Engineering Co., Inc. Control of tubular film size
US4711747A (en) * 1985-05-21 1987-12-08 Reifenhauser Gmbh & Co. Method of producing blown thermoplastic foil with low thickness tolerances
US4882104A (en) * 1987-04-03 1989-11-21 Cincinnati Milacron, Inc. Method of controlling the thickness of an extruded plastic article
EP0423386A1 (en) * 1989-10-17 1991-04-24 Tomi Machinery Manfuacturing Co., Ltd. Synthetic resin film, method of uniforming the film thickness upon molding of such film and apparatus therefor
EP0425797A1 (en) * 1989-10-31 1991-05-08 WindmÀ¶ller & Hölscher Annular die for extrusion with application to a film extrusion blowing head

Also Published As

Publication number Publication date
FR2740722B1 (en) 2000-05-19
GB2307881A (en) 1997-06-11
ATA156396A (en) 2000-11-15
DE19541296C2 (en) 1999-07-01
FR2740722A1 (en) 1997-05-09
DE19541296A1 (en) 1997-05-07
IT1288267B1 (it) 1998-09-11
ITBZ960043A1 (en) 1998-04-03
AT407854B (en) 2001-07-25
GB9621672D0 (en) 1996-12-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081017