DE50312151D1 - Cold runner nozzle for the injection molding of elastomers - Google Patents

Cold runner nozzle for the injection molding of elastomers

Info

Publication number
DE50312151D1
DE50312151D1 DE50312151T DE50312151T DE50312151D1 DE 50312151 D1 DE50312151 D1 DE 50312151D1 DE 50312151 T DE50312151 T DE 50312151T DE 50312151 T DE50312151 T DE 50312151T DE 50312151 D1 DE50312151 D1 DE 50312151D1
Authority
DE
Germany
Prior art keywords
nozzle
insert
ring
flow channel
nozzle body
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 - Lifetime
Application number
DE50312151T
Other languages
German (de)
Inventor
Manfred Dufner
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.)
Kloeckner Desma Elastomertechnik GmbH
Original Assignee
Kloeckner Desma Elastomertechnik GmbH
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 Kloeckner Desma Elastomertechnik GmbH filed Critical Kloeckner Desma Elastomertechnik GmbH
Application granted granted Critical
Publication of DE50312151D1 publication Critical patent/DE50312151D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/28—Closure devices therefor
    • B29C45/2806—Closure devices therefor consisting of needle valve systems
    • 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
    • B29C45/28—Closure devices therefor
    • B29C45/2806—Closure devices therefor consisting of needle valve systems
    • B29C45/281—Drive means therefor
    • B29C2045/2834—Needle valves driven by a lever
    • 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
    • B29C45/2756—Cold runner channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B29K2021/006—Thermosetting elastomers

Landscapes

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

Abstract

The nozzle is mounted on a cold runner block between a plasticizing unit and molding tool(150). A needle(74) which closes the nozzle outlet(75), forms the nozzle outlet end of an insert(70). The insert is moved axially in the main flow channel by an external drive unit and incorporates has a material flow channel(72). The insert drive unit comprises a short stroke cylinder(160) connected via rods(40) to a holding ring(50) outside the nozzle body(3). The holding ring surrounds the nozzle body close to the insert(70) and can be moved axially. Bolts(77) arranged radial to the nozzle axis have inward facing ends extending into a ring-shaped recess(76) in the insert. The flow channel in the insert ends in bores(73) which enter an outer nozzle ring(2) prior to the start of the needle area(74). The outer nozzle ring comprises a conical threaded ring which either screws onto the front end of the nozzle body or is an integral part of it. Temperature control channels incorporated in the nozzle body permit heating and cooling up to the front of the nozzle.
DE50312151T 2002-10-15 2003-06-17 Cold runner nozzle for the injection molding of elastomers Expired - Lifetime DE50312151D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10248071 2002-10-15
DE10321355A DE10321355B4 (en) 2002-10-15 2003-05-13 Nozzle for injecting plasticized elastomers

Publications (1)

Publication Number Publication Date
DE50312151D1 true DE50312151D1 (en) 2010-01-07

Family

ID=32086914

Family Applications (2)

Application Number Title Priority Date Filing Date
DE10321355A Expired - Fee Related DE10321355B4 (en) 2002-10-15 2003-05-13 Nozzle for injecting plasticized elastomers
DE50312151T Expired - Lifetime DE50312151D1 (en) 2002-10-15 2003-06-17 Cold runner nozzle for the injection molding of elastomers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE10321355A Expired - Fee Related DE10321355B4 (en) 2002-10-15 2003-05-13 Nozzle for injecting plasticized elastomers

Country Status (2)

Country Link
AT (1) ATE449677T1 (en)
DE (2) DE10321355B4 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006054416B4 (en) 2006-11-16 2010-08-26 Klöckner Desma Elastomertechnik GmbH Method and device for injecting plasticized masses such as rubber, silicone and the like directly or via a cold runner into a mold of an injection molding machine
DE202009004786U1 (en) 2009-05-06 2010-09-23 EWIKON Heißkanalsysteme GmbH & Co. KG Hot runner nozzle for Seitenanspritzung
FR3068638B1 (en) * 2017-07-06 2020-05-15 CEMA Technologies CONTROL DEVICE FOR INJECTION MOLDING INSTALLATION
CN109228154B (en) * 2018-09-20 2024-04-05 联塑科技发展(武汉)有限公司 Automatic shearing gate injection mold for accessories

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2336099A1 (en) * 1973-07-16 1975-02-06 Hehl Karl Hydraulically regulated nozzle for an injection moulding machine - opening and closing precisely, held closed mechanically during changeover
DE4014244A1 (en) * 1990-05-04 1991-11-07 Eckes Modell Und Formenbau Gmb Inlet connection for injection moulding of liq. silicone rubber - has cooled front end with hydraulically operated needle valve

Also Published As

Publication number Publication date
DE10321355A1 (en) 2004-05-06
ATE449677T1 (en) 2009-12-15
DE10321355B4 (en) 2008-01-31

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition