WO2006032193A1 - Réchauffeur à tuyau double pour buse à canaux chauffants et buse d'injection - Google Patents

Réchauffeur à tuyau double pour buse à canaux chauffants et buse d'injection Download PDF

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Publication number
WO2006032193A1
WO2006032193A1 PCT/CN2005/001490 CN2005001490W WO2006032193A1 WO 2006032193 A1 WO2006032193 A1 WO 2006032193A1 CN 2005001490 W CN2005001490 W CN 2005001490W WO 2006032193 A1 WO2006032193 A1 WO 2006032193A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
nozzle
heating wire
heater
hot
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.)
Ceased
Application number
PCT/CN2005/001490
Other languages
English (en)
Chinese (zh)
Inventor
Jianhua Wang
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO2006032193A1 publication Critical patent/WO2006032193A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2737—Heating or cooling means therefor

Definitions

  • This invention relates to injection molding systems and, more particularly, to a sleeve heater for hot runner nozzles and injection molding machine nozzles of such systems.
  • heating element When processing thermoplastic polymer resin in hot runner injection molding system and injection molding machine system, heating element is usually used to heat the outer surface of the nozzle, and heat is transferred through the nozzle wall to keep the resin molten in the working range, preventing it from being too cold or overheated.
  • an armored heater is generally used to heat the nozzle body.
  • this heater structure has limitations. The heating element is only partially in contact with the sleeve or the nozzle body, and most of it is in the surrounding air environment, the heat transfer efficiency is less than 25%, and the heater burns will seriously affect the heating. The life of the component. _
  • the main object of the present invention is to provide a heating device for processing molten material.
  • the unit is easily installed outside the hot runner nozzle or the nozzle of the injection molding machine, and has high heat transfer efficiency and is easy to mass-produce and operate reliably to reduce manufacturing and maintenance costs.
  • the sleeve heater of the present invention can also be installed between the outer sleeve and the inner sleeve by the thermocouple. After the wire is connected with the heating wire, it is taken out with the thermocouple through the sheath to obtain a temperature measurement signal for controlling the nozzle temperature.
  • the heating wire and the magnesium oxide filling powder are tightly compressed in the sleeve by a process such as shrinking, and the dense magnesium oxide filling powder not only increases the heat transfer efficiency of the heater, but also isolates the contact between the heating wire and the air, so that the heating wire It is not oxidized at high temperatures, extending the life of the heater. There is no relative displacement between the various components of the heater, and the original performance can be maintained under the vibration condition, and the external mechanical damage resistance is strong.
  • the sleeve heater and the nozzle body of the invention realize the gap matching by hand sliding, forming a complete nozzle structure; the heat transfer area is large, the heat transfer efficiency is greater than 50%, and the heating temperature is hooked, when damage occurs during use, It is also convenient to disassemble.
  • Figure 1 is a cross-sectional view of a sleeve heater.
  • Figure 2 is a sleeve heater with a thermocouple.
  • Figure 3 is a hot runner nozzle equipped with a sleeve heater.
  • Metal mesh 2. Sheath, 3. Lead rod, 4. Electric wire, 5. Magnesium oxide filled powder, 6. Metal outer sleeve, 7. Metal inner sleeve, 8. Thermocouple.
  • Figure 1 is a cross-sectional view of the sleeve heater.
  • the outer sleeve 6 and the inner sleeve 7 form an annular column-shaped closed space.
  • the heating wire 4 is wound in this space, and the magnesium oxide filling powder 5 is surrounded by the heating wire 4.
  • the lead wire 3 is connected to the heating wire 4, and then taken out through the wire sheath 2 and the metal mesh 1 to be taken out.
  • thermocouple 8 is installed between the outer sleeve 6 and the inner sleeve 7, and the lead wire 3 is connected to the heating wire 4, and then the thermocouple 8 is taken out to the outlet sheath 2 and the metal mesh 1 to obtain the temperature.
  • the measurement signal is used to control the nozzle temperature.
  • the sleeve heater of the present invention realizes a clearance fit with the nozzle body by hand sliding sliding, and constitutes a hot nozzle structure, and the heat transfer efficiency is greater than 50%, achieving a good heat transfer effect. .

Landscapes

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

Abstract

Cette invention porte sur un réchauffeur à tuyau double pour une buse à canaux chauffants d'un système de moulage par injection ou pour une buse d'injection, qui consiste en des fils de chauffage, de la poudre de remplissage, un tuyau extérieur et un tuyau intérieur. L'ajustement avec jeu entre le réchauffeur et le corps de la buse peut être obtenu en le glissant avec la main. Il présente les avantages d'une température de chauffage régulière, d'une grande efficacité de transfert de chaleur, d'une longue durée de vie, d'une résistance mécanique élevée, d'une facilité d'assemblage ou d'utilisation, d'une résistance à la corrosion, d'un bon aspect et d'une grand fiabilité etc.
PCT/CN2005/001490 2004-09-21 2005-09-19 Réchauffeur à tuyau double pour buse à canaux chauffants et buse d'injection Ceased WO2006032193A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN200420090275 2004-09-21
CN200420090275.0 2004-09-21
CN 200510005404 CN1751867A (zh) 2004-09-21 2005-01-02 一种热流道喷嘴和注塑机喷嘴用的套筒加热器
CN200510005404.0 2005-01-02

Publications (1)

Publication Number Publication Date
WO2006032193A1 true WO2006032193A1 (fr) 2006-03-30

Family

ID=36089843

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2005/001490 Ceased WO2006032193A1 (fr) 2004-09-21 2005-09-19 Réchauffeur à tuyau double pour buse à canaux chauffants et buse d'injection

Country Status (2)

Country Link
CN (1) CN1751867A (fr)
WO (1) WO2006032193A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7377768B2 (en) 2000-03-08 2008-05-27 Mold-Masters (2007) Limited Hot runner nozzle with removable sleeve
CN106393583A (zh) * 2016-06-15 2017-02-15 苏州市振业模具有限公司 一种适用于汽车落水槽模具注塑的装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2885955A1 (fr) * 2012-08-16 2015-06-24 Top Electric Appliances Industrial Ltd. Dispositif de chauffe et/ou de vaporisation d'un fluide tel que de l'eau
CN102821496B (zh) * 2012-08-16 2014-11-05 广州市益德电热制品有限公司 即热式加热器
CN104620672A (zh) * 2012-08-16 2015-05-13 广州市拓璞电器发展有限公司 一种加热和/或汽化诸如水之类流体的装置
CN106626264B (zh) * 2016-11-30 2019-04-16 绍兴市昊特热能科技有限公司 独立测温的热流道用加热器的制作方法
CN108381875A (zh) * 2018-03-05 2018-08-10 高立凡 一种热流道加热器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217279A (en) * 1962-02-19 1965-11-09 Wiegand Co Edwin L Electric resistance heater
US4120086A (en) * 1974-10-21 1978-10-17 Fast Heat Element Manufacturing Co. Method of making electrically heated nozzle
US4492556A (en) * 1978-10-16 1985-01-08 Fast Heat Element Mfg. Co., Inc. Unitary heated nozzle assembly
US4902219A (en) * 1986-01-08 1990-02-20 Fast Heat Element Manufacturing Company, Inc. Plastic injection molding system with multiple tip torpedo heater
CN1134652A (zh) * 1995-01-31 1996-10-30 京特热渠道有限公司 热流道注嘴

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3217279A (en) * 1962-02-19 1965-11-09 Wiegand Co Edwin L Electric resistance heater
US4120086A (en) * 1974-10-21 1978-10-17 Fast Heat Element Manufacturing Co. Method of making electrically heated nozzle
US4492556A (en) * 1978-10-16 1985-01-08 Fast Heat Element Mfg. Co., Inc. Unitary heated nozzle assembly
US4902219A (en) * 1986-01-08 1990-02-20 Fast Heat Element Manufacturing Company, Inc. Plastic injection molding system with multiple tip torpedo heater
CN1134652A (zh) * 1995-01-31 1996-10-30 京特热渠道有限公司 热流道注嘴

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7377768B2 (en) 2000-03-08 2008-05-27 Mold-Masters (2007) Limited Hot runner nozzle with removable sleeve
CN106393583A (zh) * 2016-06-15 2017-02-15 苏州市振业模具有限公司 一种适用于汽车落水槽模具注塑的装置

Also Published As

Publication number Publication date
CN1751867A (zh) 2006-03-29

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