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GB1232416A - - Google Patents

Info

Publication number
GB1232416A
GB1232416A GB1232416DA GB1232416A GB 1232416 A GB1232416 A GB 1232416A GB 1232416D A GB1232416D A GB 1232416DA GB 1232416 A GB1232416 A GB 1232416A
Authority
GB
United Kingdom
Prior art keywords
elements
electric
temperature
cylinder
heating
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
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 filed Critical
Publication of GB1232416A publication Critical patent/GB1232416A/en
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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/72—Heating or cooling
    • B29C45/74—Heating or cooling of the injection unit

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

1,232,416. Injection moulding machines. PLAST - UNO ELASTVERARBEITUNGSMASCHINEN KOMBINAT KARL-MARXSTADT VEB. 1 June, 1968, No. 10072/68. Heading B5A. Apparatus for regulating the temperatures of a worm plasticizing cylinder 1 for processing thermosetting compositions in injection moulding machines, comprises a plurality of electric heating elements 3 ... 7 which establish individual heating zones, and a cooling ring 19 through which a cooling liquid flows, one heating element 3 allocated to a nozzle 2 being connected to an electric temperature regulator 12 and the other heating elements 4 ... 7 being connectable by means of an electric switch 17 to a further electric temperature regulator 13, the temperature regulators each being controlled by temperature sensing elements 8, 9, and one or more temperature sensing elements 10, with an associated temperature indicator 16, disposed outside the heated zone of the cylinder 1. As shown, the switch 17 is a selector switch arranged for switching the heating elements 4 ... 7 on or off in succession, so as to adjust the length of the cylinder heated by these elements.
GB1232416D 1968-06-01 1968-06-01 Expired GB1232416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1007268 1968-06-01

Publications (1)

Publication Number Publication Date
GB1232416A true GB1232416A (en) 1971-05-19

Family

ID=9960942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1232416D Expired GB1232416A (en) 1968-06-01 1968-06-01

Country Status (1)

Country Link
GB (1) GB1232416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0307482A1 (en) * 1987-03-31 1989-03-22 Sumitomo Heavy Industries, Ltd Injection nozzle of injection molding machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0307482A1 (en) * 1987-03-31 1989-03-22 Sumitomo Heavy Industries, Ltd Injection nozzle of injection molding machines
EP0307482A4 (en) * 1987-03-31 1990-06-27 Sumitomo Heavy Industries Injection nozzle of injection molding machines.

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees