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WO1999036241A1 - Noyau refrigerant et chauffant - Google Patents

Noyau refrigerant et chauffant Download PDF

Info

Publication number
WO1999036241A1
WO1999036241A1 PCT/DE1998/003777 DE9803777W WO9936241A1 WO 1999036241 A1 WO1999036241 A1 WO 1999036241A1 DE 9803777 W DE9803777 W DE 9803777W WO 9936241 A1 WO9936241 A1 WO 9936241A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling
heating core
heating
core
core according
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/DE1998/003777
Other languages
German (de)
English (en)
Inventor
Walter Watermann
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.)
WALTER WATERMANN KUNSTSTOFF-SPRITZGIESSTECHNIK
Original Assignee
WALTER WATERMANN KUNSTSTOFF-SPRITZGIESSTECHNIK
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 WALTER WATERMANN KUNSTSTOFF-SPRITZGIESSTECHNIK filed Critical WALTER WATERMANN KUNSTSTOFF-SPRITZGIESSTECHNIK
Priority to DE19882085T priority Critical patent/DE19882085D2/de
Priority to AU26087/99A priority patent/AU2608799A/en
Publication of WO1999036241A1 publication Critical patent/WO1999036241A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
    • C03B17/04—Forming tubes or rods by drawing from stationary or rotating tools or from forming nozzles
    • 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
    • B22D17/24—Accessories for locating and holding cores or inserts
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/76—Cores
    • 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
    • B29C45/73—Heating or cooling of the mould
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • B29C2033/042—Meander or zig-zag shaped cooling channels, i.e. continuous cooling channels whereby a plurality of cooling channel sections are oriented in a substantial parallel direction
    • 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
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7312—Construction of heating or cooling fluid flow channels

Definitions

  • the invention relates to a cooling and heating core for tool parts with an outer core, in particular for injection molding, glass, deep-drawing and extruder tools
  • the shape of the tool part determines the shape of the finished part to be produced.
  • a cube-shaped, cylindrical or lenticular shaped part requires a tool part that has good heat transfer at certain points in order to be free of defects and quick shaping. These specific locations, the end faces, are those with which the tool part first comes into contact with the semi-finished material (plastic, metal), for example the bottom of the cup. With low heat transfer, production can only be carried out at low speed.
  • a coolant or heating medium for lowering or increasing the temperature is introduced through an inlet opening, for example an inlet bore of an inlet pipe which is inserted into the otherwise hollow tool part, and the coolant or heating medium flows out of an outlet opening again.
  • an inlet opening for example an inlet bore of an inlet pipe which is inserted into the otherwise hollow tool part
  • the coolant or heating medium flows out of an outlet opening again.
  • Another tool part in use is equipped with a cylindrical inner core, which is provided on the side with double thread grooves.
  • One of the two double thread grooves connects to the inlet opening and the other to the outlet opening on the back of the inner core.
  • the thread grooves are connected to one another near the front of the inner core, so that the coolant or heating medium can flow in opposite directions in the thread grooves. Since the temperature gradient is greatest in the entry and exit area, the greatest occurs immediately after the coolant or heating agent enters the thread groove
  • Heat exchange not with the molded part, but fatally with the emerging coolant or heating medium.
  • the temperature at the end of the core can only be influenced indirectly by using the thermal conductivity.
  • the innovation is therefore based on the task of creating a cooling and heating core that has molding-appropriate heat transfer properties and this with a maximum of adaptability in terms of core size, without requiring great technical effort and in the simplest but all the more durable manner is to be created.
  • cooling and heating core can be made up of individual modules, it is possible to design the cooling and heating core individually, i.e. to adapt to the circumstances, even if the required adjustment is not standard dimensions, rather it is possible to adapt the cooling and heating core according to the invention to any degree, be it by appropriate e.g. Shortening the individual modules, e.g. by Turning off using a lathe.
  • cooling and heating core head and one cooling and heating core base are provided, this ensures that the cooling and heating core always functions optimally even with individual adaptation.
  • Fig.l is a perspective view of a cooling
  • FIG. 2 shows the four modules forming the cooling and heating core according to FIG. 1 in an exploded view in perspective
  • FIG. 3 shows a perspective view of the cooling and heating core from a different perspective from FIG. 1,
  • FIG. 5 shows a module center piece from FIG. 2 in plan view
  • FIG. 6 shows a section along line A-A from FIG. 5,
  • FIG. 7 shows a bottom view of the module center piece from FIG. 5,
  • FIG. 9 shows a bottom view of the cooling and heating core head from FIG. 2 and
  • FIG. 10 shows a top view of the cooling and heating core head from FIG.
  • a coolant or heating medium for example water, oil
  • inlet opening 2 inlet bore 2 shown in FIG. 3, this inlet bore 2 for example a threaded connection for inlet and Can have expansion.
  • the inlet bore 2 leads as an axially extending passage 3, shown in FIGS. 4, 5, 6 and 7, through the center of the cooling and heating core 1 and ends at the bottom in a hole 4 in order to open into a flushing surface 5.
  • the passage 3 is in the present embodiment as a circular, i.e. cylindrical passage with a flattened side.
  • the hole 4 is partially surrounded by a guide rib 6, which in cooperation with the inner bottom of the outer core, not shown, ensures that the coolant or heating medium escaping through the hole 4, as can be seen from FIGS. 9 and 1, via the
  • the bottom surface of the outer core and the flushing surface 5 of the inner core are guided in a predetermined direction of movement, in the present exemplary embodiment according to FIGS. 9 and 1 in a circular right-hand movement and via a feed point 7 into a cooling pocket designed as a meandering groove 8, shown in FIG. 3, opens out, in order to be guided on the tubular side surface of the outer core and thus in the meandering groove 8 first upwards and then downwards by a first deflection groove 9.
  • the cooling and heating core 1 has six deflection grooves 9 and seven axially and straight groove sections 8.
  • a groove section designated 10, shown in FIGS. 3 and 8, leads to an outlet opening 11 for the coolant or heating medium.
  • the tool part equipped with cooling and heating core 1 makes it possible to create a targeted heat transfer at the locations of the tool part, which is adequate for the molded part to be produced taking into account the material properties. While the cooling and heating core 1 described with reference to the drawing, such a
  • Groove guide has preferred heat transport, has on the bottom side, i.e. in the area of the flushing surface 5, other groove profiles are to be considered for other shapes and materials.
  • Another advantage of the tool part equipped with a cooling and heating core according to the innovation is that the cooling or heating medium throughput can be minimized.
  • the cooling and heating core 1 is constructed in a modular manner, i.e. in the form of a plug-in system, i.e. designed to be assembled from various modules 12, 13, 14, 15.
  • the cooling and heating core 1 consists of four modules 12, 13, 14, 15, i.e. a cooling core and heating core head 12, a first cooling core and heating core center piece 13 and a second cooling core and heating core center piece, which are of shorter design in the present exemplary embodiment, and lastly a so-called cooling core and heating core foot 15.
  • both the cooling core and heating core base 15 and the cooling core and heating core center pieces 13, 14 point on their right outer side in the viewing direction FIG. and Bankkernkopf 12 facing side axially arranged, ie extending the passage 3, the coupling with the subsequent cooling core and heating core module 12,13,14 serving extensions 16, which, as can be seen in Figures 5,7,8, are circular and on a predetermined side have a flattened portion 17 and, moreover, in the present exemplary embodiment, designed in one piece with the associated module 12, 13, 14.
  • the individual cooling core and heating head modules 12, 13, 14 have on their left, as seen in Fig. 2, i.e. on the side facing the cooling and heating core base 15 has a coaxially arranged blind hole-shaped bore 17, shown in FIGS. 6, 7.
  • the blind hole-like depression 18 also has a flat 19 on one of its sides.
  • Both the cooling and heating core center pieces 13, 14, as well as the cooling and heating core base 15 and the cooling and heating core head 12 also have ribs 20 which, with a corresponding connection of the module parts 12, 13, 14, 15, complementary continuous ribs 20 and thus form the meander grooves 9 or groove sections 11 or deflection grooves 10.
  • the cooling core and heating core head 12 has a circumferential disk 21, which forms the rinsing surface 5, the outside diameter of which corresponds to the outside diameter of the ribs 20.
  • the cooling and heating core base 15 also has a disk 21 *, the outside diameter of which also corresponds to the outside diameter of the ribs 20.
  • the cooling and heating core head 12 is only provided with four ribs 20 on its side facing the cooling and heating core center piece 13.
  • the adjoining cooling and heating core center piece 13 has four ribs 20 extending over the entire length, while three ribs 20 end at a distance from the end facing the cooling core and heating core head 12, so that in the assembled state a deflection groove 10, shown in Fig.l and 3, is formed.
  • the cooling and heating core base 12 also has four ribs on its side facing the cooling and heating core center piece 14, which form a closed rib with the adjoining ribs 20 of the cooling and heating core center piece 14, while three of the seven ribs 20 of the cooling and
  • the modular construction shown enables a variable length design of the cooling and heating core 1 while at the same time advantageously guiding the coolant or heating medium.
  • the configuration according to the invention enables the use of a wide variety of materials, such as, in the present exemplary embodiment, e.g. Plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • General Induction Heating (AREA)

Abstract

L'invention concerne un noyau réfrigérant et chauffant (1) pour parties d'outil avec noyau extérieur, en particulier pour outils de moulage par injection, de production de verre, d'emboutissage profond et d'extrusion, utilisés dans l'industrie des matières plastiques, ainsi que pour outils de coulée sous pression et de coulée de métaux utilisés dans l'industrie métallurgique. Dans le noyau réfrigérant et chauffant (1) s'écoule un agent réfrigérant ou chauffant servant, respectivement, à l'abaissement ou à l'élévation de la température, ledit agent entrant par au moins une ouverture d'entrée (2) et sortant par au moins une ouverture de sortie (11), et cette ouverture d'entrée (2) et cette ouverture de sortie (11) se trouvant sur la face arrière du noyau réfrigérant et chauffant (1). L'ouverture d'entrée (2) est prolongée d'au moins un passage (3) s'étendant axialement à travers le noyau réfrigérant et chauffant (1), passage qui conduit à une face avant du noyau réfrigérant et chauffant (1) adjacente à la surface intérieure du fond du noyau extérieur. Pour que ce noyau réfrigérant et chauffant (1) présente des caractéristiques de transmission de chaleur avantageuses, tout en présentant des capacités maximales d'adaptation en ce qui concerne sa taille, sans que cela n'entraîne une grande complexité technique, et pour qu'il soit fabriqué de la façon la plus simple possible et qu'il soit d'autant plus résistant, il est constitué de modules (12, 13, 14, 15) individuels pouvant être assemblés.
PCT/DE1998/003777 1998-01-14 1998-12-23 Noyau refrigerant et chauffant Ceased WO1999036241A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19882085T DE19882085D2 (de) 1998-01-14 1998-12-23 Kühl- und Heizkern
AU26087/99A AU2608799A (en) 1998-01-14 1998-12-23 Cooling and heating core

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29800426U DE29800426U1 (de) 1998-01-14 1998-01-14 Kühl- und Heizkern
DE29800426.7 1998-01-14

Publications (1)

Publication Number Publication Date
WO1999036241A1 true WO1999036241A1 (fr) 1999-07-22

Family

ID=8051170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1998/003777 Ceased WO1999036241A1 (fr) 1998-01-14 1998-12-23 Noyau refrigerant et chauffant

Country Status (3)

Country Link
AU (1) AU2608799A (fr)
DE (2) DE29800426U1 (fr)
WO (1) WO1999036241A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201514A1 (de) * 2002-01-17 2003-07-31 Varioplast Konrad Daebritz Gmb Spritzgießwerkzeug
FR2842753A1 (fr) * 2002-07-26 2004-01-30 Financ D Etudes Et De Dev Ind Procede de realisation d'un outil destine au formage d'une matiere et outil susceptible d'etre realise par ce procede
DE10236523A1 (de) * 2002-08-09 2004-02-19 Behr Gmbh & Co. Werkzeug mit einer formgebenden Oberfläche und Verfahren zur Herstellung eines Werkzeugs

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012209805A1 (de) * 2012-06-12 2013-12-12 Bayerische Motoren Werke Aktiengesellschaft Kühlvorrichtung und Verfahren zur Kühlung eines während eines Lost Foam Gießverfahrens hergestellten Bauteils
EP3046743B1 (fr) * 2013-09-20 2019-09-11 Husky Injection Molding Systems Ltd. Composant de moule avec canaux de refroidissement conformes
DE102017216645A1 (de) * 2017-09-20 2019-03-21 Volkswagen Aktiengesellschaft Kühlpinole
US20190091909A1 (en) * 2017-09-26 2019-03-28 Brandon Fontaine Injection Molding Assembly with Cooling Insert
EP3932877B1 (fr) * 2020-06-29 2024-02-14 Schott Ag Procédé de refroidissement d'un espace autour d'un arbre de manchon, dispositif pour guider un fluide le long d'une surface extérieure d'un arbre de manchon, arbre de manchon d'arbre comprenant un tel dispositif, tube réfractaire doté d'un tel arbre de manchon inséré et système comprenant un tel arbre de manchon et/ou un tel tube réfractaire
EP4558319A1 (fr) * 2022-07-18 2025-05-28 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Dispositif mâle de moulage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510941A1 (fr) * 1981-08-06 1983-02-11 Dayco Corp Mandrin courbe pour vulcanisation d'un tuyau en polymere et procede d'utilisation
EP0099735A2 (fr) * 1982-07-17 1984-02-01 British Gas Corporation Appareil pour le traitement thermique des matières
EP0551830A1 (fr) * 1992-01-13 1993-07-21 Husky Injection Molding Systems Ltd. Elément de chauffage flexible pour un corps de canal chaud avec procédé de fabrication et procédé d'installation
DE29609883U1 (de) * 1996-06-07 1996-09-26 Walter Watermann, 32689 Kalletal Werkzeugteil der Kunststoff- und Metallindustrie
WO1998031520A1 (fr) * 1997-01-21 1998-07-23 Velcro Industries B.V. Moulage d'elements de fixation et d'autres articles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2510941A1 (fr) * 1981-08-06 1983-02-11 Dayco Corp Mandrin courbe pour vulcanisation d'un tuyau en polymere et procede d'utilisation
EP0099735A2 (fr) * 1982-07-17 1984-02-01 British Gas Corporation Appareil pour le traitement thermique des matières
EP0551830A1 (fr) * 1992-01-13 1993-07-21 Husky Injection Molding Systems Ltd. Elément de chauffage flexible pour un corps de canal chaud avec procédé de fabrication et procédé d'installation
DE29609883U1 (de) * 1996-06-07 1996-09-26 Walter Watermann, 32689 Kalletal Werkzeugteil der Kunststoff- und Metallindustrie
WO1998031520A1 (fr) * 1997-01-21 1998-07-23 Velcro Industries B.V. Moulage d'elements de fixation et d'autres articles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201514A1 (de) * 2002-01-17 2003-07-31 Varioplast Konrad Daebritz Gmb Spritzgießwerkzeug
FR2842753A1 (fr) * 2002-07-26 2004-01-30 Financ D Etudes Et De Dev Ind Procede de realisation d'un outil destine au formage d'une matiere et outil susceptible d'etre realise par ce procede
WO2004011171A1 (fr) * 2002-07-26 2004-02-05 Societe Financiere D'etudes Et De Developpements Industriels Et Technologiques (Sofedit) Procede de realisation d'un outil destine au formage d'une matiere et outil susceptible d'etre realise par ce procede
CN1318158C (zh) * 2002-07-26 2007-05-30 蒂森克虏伯工业技术研发金融公司 制造用于材料成形的工具的方法及用该方法获得的工具
DE10236523A1 (de) * 2002-08-09 2004-02-19 Behr Gmbh & Co. Werkzeug mit einer formgebenden Oberfläche und Verfahren zur Herstellung eines Werkzeugs

Also Published As

Publication number Publication date
DE29800426U1 (de) 1998-06-10
DE19882085D2 (de) 2000-08-24
AU2608799A (en) 1999-08-02

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