JPH01241426A - Multi-layer blow molding device - Google Patents

Multi-layer blow molding device

Info

Publication number
JPH01241426A
JPH01241426A JP63068707A JP6870788A JPH01241426A JP H01241426 A JPH01241426 A JP H01241426A JP 63068707 A JP63068707 A JP 63068707A JP 6870788 A JP6870788 A JP 6870788A JP H01241426 A JPH01241426 A JP H01241426A
Authority
JP
Japan
Prior art keywords
rise
amounts
plungers
operated
amount
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.)
Pending
Application number
JP63068707A
Other languages
Japanese (ja)
Inventor
Hisahiko Fukase
Akihiro Nomura
Akira Iwawaki
Yoshiharu Shidara
Original Assignee
Ishikawajima Harima Heavy Ind Co Ltd
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 Ishikawajima Harima Heavy Ind Co Ltd filed Critical Ishikawajima Harima Heavy Ind Co Ltd
Priority to JP63068707A priority Critical patent/JPH01241426A/en
Publication of JPH01241426A publication Critical patent/JPH01241426A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/32Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B29C48/338Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • B29C48/48Two or more rams or pistons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04Extrusion blow-moulding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/04Extrusion blow-moulding
    • B29C49/041Extrusion blow-moulding using an accumulator head

Abstract

PURPOSE:To perform injection molding of parison in accordance with preset thickness ratios of layers each, by a method wherein target amount of rise of each plunger is operated through a detected value of a flow detector, a difference between the target amount of rise and measured amount of rise of the each plunger is operated and the amount of rise of the each plunger is controlled based on an operated value. CONSTITUTION:Amounts oil forcing-in of materials 1, 2 to be pressed into chambers 5, 6 are detected with flow detectors 14, 15 by actuating extruding machines 3, 4 and measured amounts of rise of plungers 8, 9 following the forcing-in of the materials 1, 2 are detected by amount of rise detectors 18, 19. The amounts of forcing-in of the materials 1, 2 detected by flow detectors 14, 15 are operated and converted into target amounts of rise of the plungers 8, 9 to the amounts of the forcing-in of the materials 1, 2 by operating units 20, 21 and differences among the target amounts of rise of the plungers 8, 9 and the measured amounts of rise of the plungers 8, 9 are operated by subtractors 22, 23. Controllers 26, 27 control in order control valves 24, 25 supplying hydraulic liquid to cylinders 16, 17 according to operated values of the subtractors 22, 23 so that the measured amounts of rise of the plungers 8, 9 coincide with the target amounts of rise of them. Injection molding of parison 7 is performed by lowering the plungers 8, 9 at a time.
JP63068707A 1988-03-23 1988-03-23 Multi-layer blow molding device Pending JPH01241426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63068707A JPH01241426A (en) 1988-03-23 1988-03-23 Multi-layer blow molding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63068707A JPH01241426A (en) 1988-03-23 1988-03-23 Multi-layer blow molding device

Publications (1)

Publication Number Publication Date
JPH01241426A true JPH01241426A (en) 1989-09-26

Family

ID=13381517

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63068707A Pending JPH01241426A (en) 1988-03-23 1988-03-23 Multi-layer blow molding device

Country Status (1)

Country Link
JP (1) JPH01241426A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567164A1 (en) * 1993-06-29 1993-10-27 Maag Pump Systems AG Storage head - blow molding apparatus
EP0633120A1 (en) * 1993-06-29 1995-01-11 GREGOR HOFBAUER GmbH Process and apparatus for the production of blow-moulded articles
JP2012024936A (en) * 2010-07-20 2012-02-09 Japan Steel Works Ltd:The Method and apparatus for controlling blow molding machine
WO2019051051A1 (en) * 2017-09-08 2019-03-14 Graham Packaging Company, L.P. Vertically added processing for blow molding machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0567164A1 (en) * 1993-06-29 1993-10-27 Maag Pump Systems AG Storage head - blow molding apparatus
EP0633120A1 (en) * 1993-06-29 1995-01-11 GREGOR HOFBAUER GmbH Process and apparatus for the production of blow-moulded articles
WO1995001252A1 (en) * 1993-06-29 1995-01-12 Gregor Hofbauer Gmbh Process and device for producing blow moulded parts
JP2012024936A (en) * 2010-07-20 2012-02-09 Japan Steel Works Ltd:The Method and apparatus for controlling blow molding machine
WO2019051051A1 (en) * 2017-09-08 2019-03-14 Graham Packaging Company, L.P. Vertically added processing for blow molding machine
US11040475B2 (en) 2017-09-08 2021-06-22 Graham Packaging Company, L.P. Vertically added processing for blow molding machine

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