JPS57102327A - Heater for barrel of injection molding machine - Google Patents

Heater for barrel of injection molding machine

Info

Publication number
JPS57102327A
JPS57102327A JP17847280A JP17847280A JPS57102327A JP S57102327 A JPS57102327 A JP S57102327A JP 17847280 A JP17847280 A JP 17847280A JP 17847280 A JP17847280 A JP 17847280A JP S57102327 A JPS57102327 A JP S57102327A
Authority
JP
Japan
Prior art keywords
barrel
ceramic members
heater
heat
radiating layer
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
JP17847280A
Other languages
Japanese (ja)
Inventor
Isamu Saku
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.)
KAWAI DENKI SEISAKUSHO KK
KAWAI ELECTRIC HEATER
Original Assignee
KAWAI DENKI SEISAKUSHO KK
KAWAI ELECTRIC HEATER
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 KAWAI DENKI SEISAKUSHO KK, KAWAI ELECTRIC HEATER filed Critical KAWAI DENKI SEISAKUSHO KK
Priority to JP17847280A priority Critical patent/JPS57102327A/en
Publication of JPS57102327A publication Critical patent/JPS57102327A/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

Landscapes

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

Abstract

PURPOSE:To eliminate heat loss of a heating element, thereby heat a barrel effectively and make uniform the temperature of a molding material by a method wherein plate-shaped ceramic members are placed in parallel on the barrel- side peripheral surface of a heater, and a radiating layer is provided on the surface of the ceramic members faced to the barrel. CONSTITUTION:In a heater provided around the outside periphery of a barrel of an injection molding machine, the plate-shaped ceramic members 8 are placed in parallel in the manner of a drainboard on the inside surface of the heater, and the radiating layer 9 is formed as to line the surface of the ceramic members faced to the barrel. When power is supplied to the heating element 10 wound on the outside of the ceramic members 8, the element 10 generates heat and the heat is transmitted to the outside peripheral surface of the barrel through the ceramic members 8 and the radiating layer 9. Accordingly, even in the case where a contacting surface 15 for the barrel does not closely contact with the outside surface of the barrel, heat is efficiently transferred to the barrel through radiation due to the presence of the radiating layer 9. In addition, the relative distance between the heating element 10 and the barrel 1 is kept constant both at the time of cooling and at the time of heating.
JP17847280A 1980-12-16 1980-12-16 Heater for barrel of injection molding machine Pending JPS57102327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17847280A JPS57102327A (en) 1980-12-16 1980-12-16 Heater for barrel of injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17847280A JPS57102327A (en) 1980-12-16 1980-12-16 Heater for barrel of injection molding machine

Publications (1)

Publication Number Publication Date
JPS57102327A true JPS57102327A (en) 1982-06-25

Family

ID=16049095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17847280A Pending JPS57102327A (en) 1980-12-16 1980-12-16 Heater for barrel of injection molding machine

Country Status (1)

Country Link
JP (1) JPS57102327A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04144727A (en) * 1990-10-06 1992-05-19 Nissei Plastics Ind Co Heating apparatus for synthetic-resin molding machine
EP1005974A1 (en) * 1998-12-01 2000-06-07 Wema Beheizungstechnik GmbH Cooling and heating device for cylinders in plastic processing machines
WO2012065756A3 (en) * 2010-10-26 2012-08-02 Wema Gmbh Heating-cooling combination for plastizicing cylinders
CN107328291A (en) * 2017-08-23 2017-11-07 江苏通亚电热科技有限公司 Heater heat abstractor
CN107399062A (en) * 2017-08-28 2017-11-28 进顺汽车零部件如皋有限公司 A kind of injection machine barrel heat mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04144727A (en) * 1990-10-06 1992-05-19 Nissei Plastics Ind Co Heating apparatus for synthetic-resin molding machine
EP1005974A1 (en) * 1998-12-01 2000-06-07 Wema Beheizungstechnik GmbH Cooling and heating device for cylinders in plastic processing machines
WO2012065756A3 (en) * 2010-10-26 2012-08-02 Wema Gmbh Heating-cooling combination for plastizicing cylinders
WO2012168759A1 (en) * 2010-10-26 2012-12-13 Wema Gmbh Heating-cooling combination for plasticizing cylinders
CN107328291A (en) * 2017-08-23 2017-11-07 江苏通亚电热科技有限公司 Heater heat abstractor
CN107399062A (en) * 2017-08-28 2017-11-28 进顺汽车零部件如皋有限公司 A kind of injection machine barrel heat mechanism

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