GB1332365A - Control system for parison extruders - Google Patents

Control system for parison extruders

Info

Publication number
GB1332365A
GB1332365A GB1596873A GB1596870A GB1332365A GB 1332365 A GB1332365 A GB 1332365A GB 1596873 A GB1596873 A GB 1596873A GB 1596870 A GB1596870 A GB 1596870A GB 1332365 A GB1332365 A GB 1332365A
Authority
GB
United Kingdom
Prior art keywords
die
mandril
control system
relative positions
parison
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
GB1596873A
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.)
HUNKAR INSTR DEV LABOR Inc
Original Assignee
HUNKAR INSTR DEV LABOR Inc
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 HUNKAR INSTR DEV LABOR Inc filed Critical HUNKAR INSTR DEV LABOR Inc
Priority claimed from GB4587570A external-priority patent/GB1332363A/en
Publication of GB1332365A publication Critical patent/GB1332365A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Programme-control systems
    • G05B19/02—Programme-control systems electric
    • G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/08—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using plugboards, cross-bar distributors, matrix switches, or the like
    • 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
    • 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
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • B29C48/327—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections with centering means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1332365 Programmed control of extrusion HUNKAR INSTRUMENT DEVELOPMENT LABORATORIES INC 25 Sept 1970 [10 Nov 1969] 15968/73 Divided out of 1332363 Heading G3N The subject matter of this Specification is substantially the same as that described in Specifications 1332363 and 1332364 but the claims are concerned with a control system for simultaneously determining the relative positions of one or more parison or hollow body extrusion dies and co-operating mandrils comprising drive means for the or each die and mandril for relatively positioning them in accordance with respective position demand signals derived from a common programme and a position transducer for the or each die and mandril for providing feedback signals dependent on the said relative positions and connected in opposition to the respective demand signal, and a settable control for the or each die and mandril arranged for modifying the respective demand signal.
GB1596873A 1969-11-10 1970-09-25 Control system for parison extruders Expired GB1332365A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US87544869A 1969-11-10 1969-11-10
GB4587570A GB1332363A (en) 1969-11-10 1970-09-25 Parison extrusion machine

Publications (1)

Publication Number Publication Date
GB1332365A true GB1332365A (en) 1973-10-03

Family

ID=26265686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1596873A Expired GB1332365A (en) 1969-11-10 1970-09-25 Control system for parison extruders

Country Status (1)

Country Link
GB (1) GB1332365A (en)

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years