JPS6475215A - Heating device of tip part of nozzle of injection molding machine - Google Patents

Heating device of tip part of nozzle of injection molding machine

Info

Publication number
JPS6475215A
JPS6475215A JP23120687A JP23120687A JPS6475215A JP S6475215 A JPS6475215 A JP S6475215A JP 23120687 A JP23120687 A JP 23120687A JP 23120687 A JP23120687 A JP 23120687A JP S6475215 A JPS6475215 A JP S6475215A
Authority
JP
Japan
Prior art keywords
nozzle
tip part
control device
electrode piece
sensor
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
JP23120687A
Other languages
Japanese (ja)
Inventor
Hiroshi Ikemoto
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.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries 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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP23120687A priority Critical patent/JPS6475215A/en
Publication of JPS6475215A publication Critical patent/JPS6475215A/en
Pending 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
    • 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
    • B29C45/20—Injection nozzles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To enable the title device to take timing of a point of time of injection and that of noninjection precisely and compensate thermal effect of a low temperature mold effectively, by a method wherein the device is controlled so as to heat the tip part of a nozzle by applying an electric current to the tip of the nozzle when the tip part of the nozzle comes into contact with an electrode piece of the mold. CONSTITUTION:When the top part 1 of a nozzle comes into contact with an electrode piece 3, an output signal is sent out through a sensor 12 and read into a control device 7. Then an electric current to be supplied through a low voltage power source device 6 heats the tip part 1 of the nozzle by flowing the control device 7 a power supply terminal 4 the tip part 1 of the nozzle the electrode piece 3 the control device 7 a low voltage power source device 6. Then an electric insulation layer 5 is provided to the title device so that the electric current does not flow in the direction of a plasticizing cylinder 9. When an injection process is completed and the tip part 1 of the nozzle is separated from the electrode piece 3, electric power through the low voltage electric power device 6 is interrupted by the control device through an output signal from the sensor 12. It is also possible to control electrified current by comparing with a reference value stored within a control device by providing a sensor 13 detecting the electrified current between the control device 7 and power supply terminal 4.
JP23120687A 1987-09-17 1987-09-17 Heating device of tip part of nozzle of injection molding machine Pending JPS6475215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23120687A JPS6475215A (en) 1987-09-17 1987-09-17 Heating device of tip part of nozzle of injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23120687A JPS6475215A (en) 1987-09-17 1987-09-17 Heating device of tip part of nozzle of injection molding machine

Publications (1)

Publication Number Publication Date
JPS6475215A true JPS6475215A (en) 1989-03-20

Family

ID=16920003

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23120687A Pending JPS6475215A (en) 1987-09-17 1987-09-17 Heating device of tip part of nozzle of injection molding machine

Country Status (1)

Country Link
JP (1) JPS6475215A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010005963A (en) * 2008-06-27 2010-01-14 Canon Electronics Inc Injection molding machine
JP2017042922A (en) * 2015-08-24 2017-03-02 日産自動車株式会社 Injection molding method and apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010005963A (en) * 2008-06-27 2010-01-14 Canon Electronics Inc Injection molding machine
JP2017042922A (en) * 2015-08-24 2017-03-02 日産自動車株式会社 Injection molding method and apparatus

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