GB1514541A - Injection moulding machine - Google Patents

Injection moulding machine

Info

Publication number
GB1514541A
GB1514541A GB2308875A GB2308875A GB1514541A GB 1514541 A GB1514541 A GB 1514541A GB 2308875 A GB2308875 A GB 2308875A GB 2308875 A GB2308875 A GB 2308875A GB 1514541 A GB1514541 A GB 1514541A
Authority
GB
United Kingdom
Prior art keywords
passage
pressure
throttling
nozzle
demag
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
GB2308875A
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.)
Mannesmann Demag AG
Original Assignee
Demag AG
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 Demag AG filed Critical Demag AG
Publication of GB1514541A publication Critical patent/GB1514541A/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
    • B29C45/20—Injection nozzles
    • 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
    • B29C2045/0098—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor shearing of the moulding material, e.g. for obtaining molecular orientation or reducing the viscosity
    • 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
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/78—Measuring, controlling or regulating of temperature

Abstract

1514541 Injection moulding nozzle DEMAG KUNSTSTOFFTECHNIK ZWEIGNIEDERLUSSUNG DER DEMAG AG 27 May 1975 [27 May 1974] 23088/75 Heading B5A The temperature of injected moulding material is controlled by varying the cross section of the injection nozzle passage 13 and/or of the sprue 19 in the mould 18 in response to a pressure or temperature sensor positioned downstream of the control position. In Fig. 1 (not shown) the nozzle passage is varied in size by means of a screw-threaded throttling pin (5). In Fig. 2 a throttling pin (15) is biased away from the nozzle passage 13 by a spring 22 but can be extended into the passage by means of ball 23 acted upon by a wedge surface 24 on a plunger 25. The plunger is biased to the right in Fig. 2 by a spring 31 but can be advanced by means of three hydraulic pistons 32-34 arranged in tandem. The pressure in the mould cavity 20 is measured by a meter 38 and controls the pressure applied to the pistons 32-34 and thus controls the extent of throttling of the passage 13.
GB2308875A 1974-05-27 1975-05-27 Injection moulding machine Expired GB1514541A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742425621 DE2425621A1 (en) 1974-05-27 1974-05-27 INJECTION MOLDING MACHINE

Publications (1)

Publication Number Publication Date
GB1514541A true GB1514541A (en) 1978-06-14

Family

ID=5916596

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2308875A Expired GB1514541A (en) 1974-05-27 1975-05-27 Injection moulding machine

Country Status (5)

Country Link
BR (1) BR7503308A (en)
DE (1) DE2425621A1 (en)
FR (1) FR2272823B1 (en)
GB (1) GB1514541A (en)
NL (1) NL7505272A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2803465A1 (en) * 2013-05-15 2014-11-19 Nexam Chemical AB Injection molding device
CN111002579A (en) * 2018-08-05 2020-04-14 罗天珍 Swash plate rotary switching type multi-nozzle extrusion device special for three-dimensional printing

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077760A (en) * 1974-10-03 1978-03-07 National Can Corporation Injection molding process and apparatus
FR2459720A1 (en) * 1979-06-26 1981-01-16 Solyvent Ventec Ste Lyon Venti IMPROVED MOLD ASSEMBLY FOR MOLDING ELASTOMERS
AT390029B (en) * 1987-09-29 1990-03-12 Engel Gmbh Maschbau INJECTION MOLDING MACHINE
DE69021824T2 (en) * 1989-10-27 1996-04-18 Mitsubishi Heavy Ind Ltd Injection molding process and apparatus therefor.
US5478520A (en) * 1989-10-27 1995-12-26 Mitsubishi Jukogyo Kabushiki Kaisha Process for injection molding and apparatus therefor
DE4129979A1 (en) * 1991-09-10 1993-05-19 Ver Foerderung Inst Kunststoff Temp. profile sensor for extruder nozzle or die - is shaped to suit specific task, carried in low conductivity material and can be used for manual or automatic optimisation of temp. control
DE102019108164B3 (en) 2019-03-29 2020-07-09 Tavo Kolling Cold runner injection molding machine and method for calibrating the degree of mold filling

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2803465A1 (en) * 2013-05-15 2014-11-19 Nexam Chemical AB Injection molding device
WO2014184255A1 (en) * 2013-05-15 2014-11-20 Nexam Chemical Ab Injection molding device
CN111002579A (en) * 2018-08-05 2020-04-14 罗天珍 Swash plate rotary switching type multi-nozzle extrusion device special for three-dimensional printing

Also Published As

Publication number Publication date
BR7503308A (en) 1976-04-27
FR2272823A1 (en) 1975-12-26
DE2425621A1 (en) 1975-12-11
FR2272823B1 (en) 1977-07-08
NL7505272A (en) 1975-12-01

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee