EP1500445A2 - Grosse Metallform - Google Patents

Grosse Metallform Download PDF

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Publication number
EP1500445A2
EP1500445A2 EP04291855A EP04291855A EP1500445A2 EP 1500445 A2 EP1500445 A2 EP 1500445A2 EP 04291855 A EP04291855 A EP 04291855A EP 04291855 A EP04291855 A EP 04291855A EP 1500445 A2 EP1500445 A2 EP 1500445A2
Authority
EP
European Patent Office
Prior art keywords
mold
channels
face
block
channel
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.)
Withdrawn
Application number
EP04291855A
Other languages
English (en)
French (fr)
Other versions
EP1500445A3 (de
Inventor
Bruno Bellouard
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.)
Alpha 3D
Original Assignee
Alpha 3D
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 Alpha 3D filed Critical Alpha 3D
Publication of EP1500445A2 publication Critical patent/EP1500445A2/de
Publication of EP1500445A3 publication Critical patent/EP1500445A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • B22C9/04—Use of lost patterns
    • B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/06—Permanent moulds for shaped castings
    • B22C9/065—Cooling or heating equipment for moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2218—Cooling or heating equipment for dies

Definitions

  • the present invention relates to a large-sized metal mold, in particular an injection mold, of the type consisting of at least two parts of mold able to be moved closer together and separated from each other, generally by via a press to form, in the closed position of the mold, a molding cavity, each mold part, having a molding face and an opposite face, said press support face, and being provided with channels serving, for at least a part of them, to the circulation of a fluid coolant.
  • the mold may be in the form of a block having cavities.
  • these cavities to allow resistance of the mold during the execution of the molding operations, must be filled with material, such only ceramics.
  • the cooling channels of these molds are of conventional arrangement, that is to say that they extend perpendicularly to the opening / closing axis of the mold.
  • these channels are realized in the ceramic part and can be made by means of insert in the ceramic material or by machining. This again results in a waste of time important.
  • An object of the present invention is therefore to propose a mold which combines the manufacturing facilities for molds made in the form of a casting part while offering sufficient mechanical strength to allow the realization of large injection metal mold.
  • Another object of the present invention is to propose a mold whose Channel design optimizes the cooling of such a mold.
  • the subject of the invention is a large-sized metal mold, in particular injection mold, of the type consisting of at least two parts of mold able to be moved closer together and separated from each other, generally by via a press to form, in the closed position of the mold, a molding cavity, each mold part, being a casting part affecting the shape of a block, having a molding face and a face opposite, said support face of the press, and being provided with channels serving, for at least part of them, to the circulation of a coolant, said inner channels being integrally molded with said block, characterized in that what said molded channels with said block are oriented in the mold opening / closing direction and form a network of channels, parallel to the axis of opening / closing of the mold to allow the walls of channels to cash out the efforts resulting from the molding operations.
  • At least part of the channels fulfill a dual function namely of a part, at the level of the walls, a function of encashment of the efforts resulting injection pressures implemented, on the other hand, at the level of the interior said channels, the role of fluid flow conduit.
  • the organization of channels in the form of a network of parallel channels allows, using a end of each of the channels, to follow the profile of the molding face and therefore to obtain the same characteristics in terms of heat exchange as those that were obtained when a single channel followed the profile of the face of molding.
  • the metal mold, object of the invention is more particularly intended to constitute a mold of large size, in particularly an injection mold.
  • This mold is constituted, in a conventional manner, of at least two mold parts 1 adapted to be brought together and spaced apart one on the other hand usually through a press to form, in closed position of the mold, a mold cavity.
  • each mold part 1 comprises a molding face 2 and a Opposite face 3, called the support face of the press.
  • This mold part is still provided with channels 4 serving, for at least part of them, to the circulation of a coolant.
  • Each mold part 1 is a piece of foundry affecting the general shape of a block with internal 4 channels molding with said block.
  • these channels form a network of channels parallel to the axis of opening / closing of the mold and are oriented in the S direction of opening / closing of the mold for allow the channel walls 4 to collect the forces resulting from the molding operations.
  • the realization of the channels in the form of a network leads to a multiplication of the channels thus allowing one end of this multiplicity of channels to follow the molding face to facilitate the heat exchange between molding cavity and channels thus obtaining an effect equivalent to that which would be obtained by a channel following the profile of the face of molding extending substantially parallel to the latter.
  • the channels 4 form a network of channels parallel to the axis of opening / closing of the mold, these channels taking birth behind the molding side 2.
  • Channels 4 of the network of channels extend to the rear of the support surface 3 of the mold. This solution makes it possible to obtain sealed channels at the time of manufacture of the block intended to constitute the mold part 1. This results in a simplification moment of connection of all the networks to a heat transfer fluid. he then just connect the input 7 and the output 8 of the block to a circuit heat transfer fluid supply to allow feeding of all or part of the channels 4 of the mold without having to manage the sealing problems at the within the mold.
  • the channels 4 form again a network of channels parallel to the axis opening / closing the mold. These channels 4 are born backwards of the molding face 2 and open into the support face 3 of the block. he then becomes necessary to close this block support face via an insert plate whose waterproof connection to the block must be ensured.
  • the channel walls are provided with fluid circulation openings 5 of a channel 4 to another.
  • the channel walls are provided with fluid circulation openings 5 of a channel 4 to another.
  • at least a part 4 channels is compartmentalized through a partition 6 reported.
  • Said channels 4 then comprise, at their wall opening into the support face of the block, notches. These notches form, in the closed state of block by means of a solid wall attached, the openings 5 of circulation of fluid from one channel 4 to another, so as to impose a forced circulation of the flow of fluid along the walls of said compartmentalized channels. It results in this case an ease of manufacture of the openings of the channels.
  • the ends of the channels 4 back of the molding face are positioned along a line whose plot is identical to the profile of the molding face 2 of the mold. So, this solution allows optimized thermal exchanges at the level of the face 2 of because the multiplicity of channels resulting from their organization in network allows to cover, with the help of the end of these channels, a large part of the surface extending under the molding face.
  • the channels 4 present a polygonal section.
  • the block channels have a honeycomb structure formed here by hexagonal cells.
  • the channels thus form a network of channels adjacent parallels, preferably contiguous, of axis parallel to the aperture axis of the mold and whose ends cooperate to follow the profile of the face molding.
  • the interest of the polygonal sections being to have walls of constant thickness limiting the problems of bubbling, shrinking and distortion at the time of the mold manufacturing.
  • Such a mold is manufactured in a conventional manner according to the techniques of Foundry well known to those versed in this art.
  • the stages of process comprise a first step of manufacturing a model of the part 1 mold made of a fusible material, such as polystyrene.
  • the elements hollow of this mold are then filled with sand and the whole is soaked in sand to make a sand mold.
  • the initial model is a model lost during the operation of metal casting that comes to replace the parts occupied by the master model.
  • the sand is then removed and the mold metal, obtained by casting, constitutes the definitive mold.
  • This technique does not will not be described in more detail because it is well known to those versed in this art.
  • the metal used during the casting may be aluminum, steel or other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP04291855A 2003-07-22 2004-07-21 Grosse Metallform Withdrawn EP1500445A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0308906A FR2857890B1 (fr) 2003-07-22 2003-07-22 Moule metallique de grande dimension
FR0308906 2003-07-22

Publications (2)

Publication Number Publication Date
EP1500445A2 true EP1500445A2 (de) 2005-01-26
EP1500445A3 EP1500445A3 (de) 2007-04-25

Family

ID=33484679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04291855A Withdrawn EP1500445A3 (de) 2003-07-22 2004-07-21 Grosse Metallform

Country Status (2)

Country Link
EP (1) EP1500445A3 (de)
FR (1) FR2857890B1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008359A1 (de) * 2006-02-21 2007-08-23 Direkt Form Gmbh Temperierbares Werkzeug aus einem gegossenen metallischen Werkstoff zur Formgebung von Werkstücken
DE102009008675A1 (de) * 2009-02-12 2010-08-19 Audi Ag Gussform zum Druckgießen eines Bauteils sowie Verfahren zur Herstellung einer derartigen Gussform
DE102011111583A1 (de) * 2011-08-20 2013-02-21 Volkswagen Aktiengesellschaft Temperierbares Werkzeug zur Formgebung von Werkstücken und Verfahren zur Herstellung des temperierbaren Werkzeugs
CN103209787A (zh) * 2010-05-18 2013-07-17 乔治·费希尔服务有限责任公司 压铸型的压铸型部分以及相应的压铸装置
DE102012024051A1 (de) * 2012-12-08 2014-06-12 Volkswagen Aktiengesellschaft Temperierbares Werkzeug zur Formgebung von Werkstücken
DE102014001563A1 (de) * 2014-02-05 2015-08-06 Universität Kassel Gussform
GB2538557A (en) * 2015-05-22 2016-11-23 Rolls Royce Plc Casting die
CN106914599A (zh) * 2016-12-28 2017-07-04 宁波臻至机械模具有限公司 一种离合器壳体水冷流道装置
DE202017106450U1 (de) * 2017-10-25 2018-07-09 Schaufler Tooling Gmbh & Co.Kg Gussform mit Kühlsystem
CN110899671A (zh) * 2019-12-09 2020-03-24 马鞍山市黎明天工自动化设备有限公司 铸件凝固控制方法
CN111151735A (zh) * 2019-11-29 2020-05-15 武汉数字化设计与制造创新中心有限公司 铸型

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103071765A (zh) * 2012-12-27 2013-05-01 清华大学 一种熔模铸造壳内预制孔道的局部气冷方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62117716A (ja) * 1985-11-18 1987-05-29 Honda Motor Co Ltd 金型およびその温度制御方法
WO1997016274A1 (en) * 1995-10-31 1997-05-09 Massachusetts Institute Of Technology Enhancement of thermal properties of tooling made by solid free form fabrication techniques
DE19937315A1 (de) * 1999-08-10 2001-02-22 Mueller Weingarten Maschf Temperierung von Formen
DE10017391A1 (de) * 2000-04-07 2001-10-11 Volkswagen Ag Verfahren zur Herstellung von metallischen Dauerformen und Dauerform
US20020162940A1 (en) * 2001-05-01 2002-11-07 Brookfield Innovations Inc. System for regulating mold temperature

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62117716A (ja) * 1985-11-18 1987-05-29 Honda Motor Co Ltd 金型およびその温度制御方法
WO1997016274A1 (en) * 1995-10-31 1997-05-09 Massachusetts Institute Of Technology Enhancement of thermal properties of tooling made by solid free form fabrication techniques
DE19937315A1 (de) * 1999-08-10 2001-02-22 Mueller Weingarten Maschf Temperierung von Formen
DE10017391A1 (de) * 2000-04-07 2001-10-11 Volkswagen Ag Verfahren zur Herstellung von metallischen Dauerformen und Dauerform
US20020162940A1 (en) * 2001-05-01 2002-11-07 Brookfield Innovations Inc. System for regulating mold temperature

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
FRIEL P ET AL: "BEITRAG ZUM TEMPERIEREN VON SPRITZGIESSWERKZEUGEN" PLASTVERARBEITER, HUETHIG GMBH, HEIDELBERG, DE, vol. 26, no. 9, septembre 1975 (1975-09), pages 491-498, XP001172785 ISSN: 0032-1338 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008359B4 (de) * 2006-02-21 2008-06-05 Direkt Form Gmbh Temperierbares Werkzeug aus einem gegossenen metallischen Werkstoff zur Formgebung von Werkstücken
DE102006008359A1 (de) * 2006-02-21 2007-08-23 Direkt Form Gmbh Temperierbares Werkzeug aus einem gegossenen metallischen Werkstoff zur Formgebung von Werkstücken
DE102009008675A1 (de) * 2009-02-12 2010-08-19 Audi Ag Gussform zum Druckgießen eines Bauteils sowie Verfahren zur Herstellung einer derartigen Gussform
CN103209787A (zh) * 2010-05-18 2013-07-17 乔治·费希尔服务有限责任公司 压铸型的压铸型部分以及相应的压铸装置
DE102011111583A1 (de) * 2011-08-20 2013-02-21 Volkswagen Aktiengesellschaft Temperierbares Werkzeug zur Formgebung von Werkstücken und Verfahren zur Herstellung des temperierbaren Werkzeugs
DE102012024051B4 (de) * 2012-12-08 2021-01-28 Volkswagen Aktiengesellschaft Temperierbares Werkzeug zur Formgebung von Werkstücken
DE102012024051A1 (de) * 2012-12-08 2014-06-12 Volkswagen Aktiengesellschaft Temperierbares Werkzeug zur Formgebung von Werkstücken
DE102014001563A1 (de) * 2014-02-05 2015-08-06 Universität Kassel Gussform
DE102014001563B4 (de) * 2014-02-05 2015-08-20 Universität Kassel Gussform
GB2538557A (en) * 2015-05-22 2016-11-23 Rolls Royce Plc Casting die
US10124400B2 (en) 2015-05-22 2018-11-13 Rolls-Royce Plc Casting die
CN106914599B (zh) * 2016-12-28 2019-03-08 宁波臻至机械模具有限公司 一种离合器壳体水冷流道装置
CN106914599A (zh) * 2016-12-28 2017-07-04 宁波臻至机械模具有限公司 一种离合器壳体水冷流道装置
DE202017106450U1 (de) * 2017-10-25 2018-07-09 Schaufler Tooling Gmbh & Co.Kg Gussform mit Kühlsystem
CN111151735A (zh) * 2019-11-29 2020-05-15 武汉数字化设计与制造创新中心有限公司 铸型
CN110899671A (zh) * 2019-12-09 2020-03-24 马鞍山市黎明天工自动化设备有限公司 铸件凝固控制方法

Also Published As

Publication number Publication date
FR2857890B1 (fr) 2006-11-24
FR2857890A1 (fr) 2005-01-28
EP1500445A3 (de) 2007-04-25

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