EP2295172B1 - Sprue block unit, sprue system and control unit for a diecast machine - Google Patents

Sprue block unit, sprue system and control unit for a diecast machine Download PDF

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Publication number
EP2295172B1
EP2295172B1 EP10194415.5A EP10194415A EP2295172B1 EP 2295172 B1 EP2295172 B1 EP 2295172B1 EP 10194415 A EP10194415 A EP 10194415A EP 2295172 B1 EP2295172 B1 EP 2295172B1
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EP
European Patent Office
Prior art keywords
sprue
heating
block
melt
block unit
Prior art date
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Active
Application number
EP10194415.5A
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German (de)
French (fr)
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EP2295172A1 (en
Inventor
Dr.-Ing. Norbert Erhard
Dietmar Gerwig
Herbert Trebes
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.)
Oskar Frech GmbH and Co KG
Original Assignee
Oskar Frech GmbH and Co KG
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Priority to PL10194415T priority Critical patent/PL2295172T3/en
Priority to EP10194415.5A priority patent/EP2295172B1/en
Publication of EP2295172A1 publication Critical patent/EP2295172A1/en
Application granted granted Critical
Publication of EP2295172B1 publication Critical patent/EP2295172B1/en
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    • 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
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/2038—Heating, cooling or lubricating the injection unit
    • 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
    • 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
    • B22D17/2272—Sprue channels
    • 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
    • B22D17/32—Controlling equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/06—Heating or cooling equipment

Definitions

  • the invention relates to a sprue block unit for a hot runner gate system of a die casting machine, wherein the sprue block unit comprises a block body, into which at least one melt-carrying channel is introduced, which comprises an inlet channel region and a runner, which emerges from the block body with a sprue mouth, and comprising a heater integrated in the block body for the at least one melt-carrying channel. Further, the invention relates to a hot runner gate system with one or more heated sprue block units and to a control device for a die casting machine with hot runner gate system.
  • the gate or gate area is understood to mean the point at which the cast mold breaks off from the sprue of the melt, ie the gate forms the predetermined breaking point for the cast mold of solidified melt in the adjacent gate area. This means that the gate at this gate system is directly at the edge of the mold cavity or immediately before it.
  • the supply of melt into the nozzle feed channels takes place from a sprue tip, which is formed on the inlet side of the sprue piece, via distributing feed channels in the sprue part.
  • the running channels are heated, and in addition, each nozzle is associated with its own heating element in the form of an electrical heating element surrounding the cylindrical nozzle body.
  • the publication DE 199 10 853 A1 discloses a die casting machine having a heated melt distributor and a plurality of spaced, heated nozzles sitting in a mold and each having a melt bore for conveying melt to a gate leading to a cavity.
  • the melt distribution manifold has a melt passageway and a plurality of spaced apart transverse openings therethrough, each aligned with one of the nozzles, the melt passageway having a plurality of branches extending outwardly from each of the nozzles from a common inlet section, and a plurality of inserts; each of which has a rear surface, a front surface, an outer surface and a melt passage therethrough.
  • Each of these inserts is in one of the transverse openings in the Melt dispenser is received such that the front surface abuts the rear end of a corresponding nozzle, wherein the melt channel has a gently curved bend of substantially 90 °, which is an inlet on the outer surface which is aligned with one of the branches of the melt passage in the melt distribution , to an outlet on the front surface, which is aligned with the melt bore of the corresponding nozzle.
  • Each transverse opening is cylindrical, as is the outer surface of each insert.
  • the publication WO 03/018236 A1 discloses a method for producing magnesium die cast parts by means of a die casting machine whose flow path cross section along the melt flow direction is defined in a defined manner to achieve a reduction in flow rate such that the melt transitions from a molten to a semi-solidified doughy state before entering the mold cavity arrives.
  • a heatable nozzle extension with a special cross-sectional configuration of its longitudinal center flow channel bore is provided between a conventional nozzle and the gate area.
  • the publication DE 103 59 692 A1 discloses an injection molding apparatus having a gate system including a valve pin closure with melt plug formation and plug heating suitable for injection molding.
  • the publication JP 63-137561 A discloses a hot chamber die casting machine in which a temperature sensor senses the temperature at the inside of a melt outlet nozzle in the region of the nozzle outlet, the temperature sensor comprising two thermocouples at different distances from a heat receiving surface to also determine the heat conduction velocity. Depending on the temperature information of this temperature sensor, the closing and heating of the nozzle and the speed and the casting pressure of a casting piston are automatically controlled.
  • the patent US 5,286,184 discloses a nozzle assembly for an injection molding apparatus, wherein the nozzle has an inlet channel, which branches in front of the nozzle orifice into four individual channels.
  • the unbranched inlet channel section can be heated by an associated heating device, while the branched channel sections no heating device is assigned.
  • the invention is based on the technical problem of providing a sprue block unit of the type mentioned above and a hot runner gate system and a control device for a die casting machine, with which the flexibility of Angusssystems die casting machines and / or the melt heating in Angusssystem and / or the control of the die casting machine can be improved over the above-mentioned prior art.
  • the invention solves this problem by providing a sprue block unit having the features of claim 1, a hot runner gate system having the features of claim 3 and a control device having the features of claim 6.
  • the sprue block unit according to the invention is designed as a unit that can be used independently in a respective casting mold with a block body into which at least one melt-carrying channel is inserted and a heater is integrated.
  • the sprue block unit is not a solid, permanent sprue block part of a mold or mold half, but can be used modularly and flexibly in various molds, which are provided with corresponding receiving openings.
  • a plurality of such sprue block units can be used in any arrangement configuration depending on the size and type of the mold.
  • the least a melt-carrying channel comprises an inlet channel region and a sprue channel region emanating therefrom, with a sprue opening close to the block body of the sprue block unit, which means that the sprue block unit forms the gate area for the respective shape or is located immediately upstream of this gate near the gate.
  • the heater has a first heating device for heating the inlet channel region and a second heating device for heating the sprue channel region. This means that the melt can be actively heated by using this sprue block unit on its conveying path until immediately before reaching the mold cavity.
  • the second heating device can be controlled or regulated separately from the first heating device.
  • the temperatures in the region of the inlet channel and in the region of the branching sprue channels can be set variably and independently of one another.
  • the hot runner gate system according to claim 3 has at least one sprue block unit according to the invention. Furthermore, it includes at least one heating control loop for the controlled heating of the at least one sprue block unit and / or a special distributor block structure.
  • the heating control loop has at least two heating elements for the particular sprue block unit, which are controlled individually for adjusting a predeterminable temperature profile, or two separately controllable or controllable heating devices for inlet or runner heating. This allows in operation a comparatively variable and accurate adjustment of the temperature for the melt flowing through the sprue block unit before the melt passes directly from there into the mold cavity. It is understood that, if required, further individually controlled heating elements can be provided along the melt flow path upstream of the sprue block unit.
  • the one or more runner block units are mounted on a runner side.
  • the manifold block assembly is provided with one or more flow channels through which melt can be supplied to the melt-carrying channel (s) of the one or more runner block units.
  • the distributor block structure forms a variably deployable, modular structural unit which, depending on the application, can be configured differently and inserted into a mold or mold half.
  • a plurality of runner block units may be arranged in a linear, i. one-dimensional, configuration or in a two-dimensionally distributed configuration arranged on the manifold block structure and so are used at distributed locations on a sprue side in a mold or mold half.
  • the distribution block structure has one or more distribution block elements, wherein the respective distribution block element can be actively heated. This ensures a continuously heated distribution of melt, which may be added to the manifold block assembly e.g. is supplied via an upstream metering unit with casting piston and nozzle, on the individual, to the manifold block assembly coupled sprue block units.
  • the hot runner-gate system has a gate system temperature sensor and a control device which is adapted to receive a temperature information of the gate temperature sensor system and to control a mold filling operation of the die casting machine in dependence thereon.
  • the mold filling operation ie the filling of the mold cavity with the melt, can be made dependent on the detected temperature of the melt in the runner system part.
  • the control device is intended for controlling a die casting machine, which is used for the production of metal die castings and has a hot runner gate system according to the invention and a gate system temperature sensor system.
  • the control device is designed to control a respective mold filling operation as a function of a temperature information supplied to it by the gate system temperature sensor. This is used to release or start the respective mold filling process only when one or more temperatures detected in the hot runner gate system by the runner system temperature sensor are within a respective predetermined setpoint temperature range or setpoint temperature window. This ensures that the casting of the mold only takes place when predetermined desired temperature conditions prevail in the sprue system, for example in one or more sprue block units according to the invention used in the hot runner gate system.
  • the in Fig. 1 The sprue system and control part of a die casting machine shown with the components of interest includes a hot runner gate system 1 of modular construction comprising a manifold block assembly 2 and sprue block units attached thereto on a sprue side, in the example shown four sprue block units 3a, 3b, 3c, 3d.
  • the die casting machine can be, for example, a hot-chamber die casting machine for zinc or magnesium die-casting, alternatively also a hot-chamber die casting machine for other materials castable therewith or a die casting machine for metal diecasting of the cold chamber type.
  • the distributor block assembly 2 includes a longitudinal distributor block 2a and two transverse distributor blocks 2b arranged at opposite end regions of the longitudinal distributor block 2a.
  • the longitudinal distribution block 2a has an in Fig. 1 upper side a central inlet opening 4 as Angus mouthpiece of the hot runner-Angusssystems 1, to which in a conventional, not further shown manner, an end nozzle of a casting piston unit of an upstream melt metering unit of the die casting machine can be attached. From Angus mouthpiece 4 performs a longitudinal center rotor channel 5, as in the sectional view of Fig.
  • Each sprue block unit 3a to 3d is constructed in the same way from a block body 8 with integrated heating.
  • the construction of the respective sprue block units 3a to 3d is shown in the sectional views of FIGS FIGS. 2 and 3 to recognize closer. Specifically, it includes in the example shown, a T-shaped base body 9 with elongated central dome 9a, in which the supply channel 7 is introduced as a central axial bore, and thereof quer querendem foot part 9b.
  • foot part 9b In the foot part 9b are formed from the mouth of the inlet channel 7 to two opposite sides transverse laxative runners 11a, 11b, which open in the corresponding lower side region of the sprue block unit 3a to 3d, each with a slot-shaped gate opening 12a, 12b close to the gate.
  • a thermal insulation layer 10 is provided in the foot part 9b.
  • this melt-carrying channel system of the sprue block unit 3a to 3d is actively heated in a targeted manner.
  • the integrated heater comprises a first heating device serving primarily the inlet channel heating and a second heating device serving primarily for sprue channel heating, which can be controlled or regulated separately from the first heating device.
  • the first heating device includes two separately controllable heating circuits 13a, 13b, which are arranged on the lateral surface of the central dome 9a
  • the second heating device has two separately controllable electrical heating circuits 14a, 14b, which are also separated from each other and separate from the heating circuits 13a , 13b of the first heating device are controllable and are arranged on the base part 9b of the base body 9.
  • the electric heating circuits 13a to 14b e.g. can be realized by suitably configured Schudrahtiata, shielded by a thermal insulation ring 15, which in turn is surrounded by an outside flush with the foot part 9b arranged outer shell 16 of the sprue block unit 3a to 3d.
  • each runner block unit 3a to 3d is as in FIG Fig. 2 represented, in each case a heating control loop associated with a control unit 17, which emits via an electrical amplifier 18 suitable control signals 19, ie heating current signals, separately for each of the separately controllable heating circuits or heating elements 13a to 14b.
  • suitable control signals 19 ie heating current signals
  • corresponding temperature actual value information 20 with respect to each heating circuit 13a to 14b of the control unit 17 is supplied, which in consideration of taking over a Setpoint input input setpoint information 21, the control signals 19 generates.
  • the second heater for the sprue heating in addition to the first heater for Zulaufkanalbeloomung can be with this heating loop by means of suitable specification of the corresponding temperature setpoint information a desired temperature profile for the heated, consisting of the inlet channel 7 and the sprue channels 11 a, 11 b melt-carrying channel the sprue block unit 3a to 3d choose very variable and comply very precisely.
  • the respective heating device is made up of a plurality of independently controllable heating circuits or heating elements
  • the temperature profile in the inlet channel region and / or in the sprue channel region can also be adjusted and regulated comparatively fine.
  • a temperature profile which varies depending on the location along the melt path or conveying path of the melt in the inlet channel 7 and / or the sprue channels 11a, 11b can also be predetermined and regulated.
  • the melt can also be actively heated in the manifold block assembly 2 before reaching the sprue block units 3a to 3d.
  • corresponding further heating devices are used in the longitudinal distribution block 2a integrated heating elements, eg in Fig. 3 shown heating wires 23, and integrated in the transverse distribution blocks 2b heating elements, eg in Fig. 2 shown heating wires 22.
  • Fig. 1 how out Fig. 1 can be seen, is the in Fig. 2 for one of the sprue block units 3a heating control loop part of an overall heating control loop for all actively heated components of the hot runner Angusssystems 1 with a higher-level central control unit ZR, individual control units 17 1 to 17 4 and associated control signal amplifiers or power units 18 1 to 18 4 for each of Angle block units 3 a to 3d, a single control unit 17 5 with associated power section 18 5 for the controlled heating of the longitudinal manifold block 2a and two individual control units 17 6 , 17 7 each with associated power section 18 6 , 18 7 for the separate heating of each of the two transverse manifolds 2b.
  • Each of the individual control units 17 1 to 17 7 corresponds in their operation of the control unit 17 of Fig. 2 and receives from each of its associated and in the sprue block unit 3a to 3d or in the transverse manifold blocks 2b and the longitudinal manifold block 2a suitably arranged temperature sensor corresponding temperature actual value information 20 i .
  • each individual control unit 17 i outputs an associated status signal 23 i to the central control unit ZR, which contains information about the temperature in the associated sprue system area, which is heated by the heating element or heating circuit that is controlled by this control unit becomes.
  • this status signal 23 i comprises information about Whether the temperature regulated by the respective individual control loop is within a setpoint temperature window or setpoint temperature range specified by the setpoint information 21 i or not.
  • the central control unit ZR separately for each of the sprue block units 3a to 3d, the two transverse manifolds 2b and the longitudinal manifold block 2a individual set temperatures or setpoint temperature ranges to be maintained as temperature profiles are set, which are then adjusted by the individually associated individual control loops .
  • the central control unit ZR depending on the system design and application, in addition to the mentioned heating control for the hot runner runner system fulfill further control tasks. In the example shown, it stands with a central machine control MS of the die casting machine in bidirectional communication connection 24.
  • this is used, inter alia, to inform the central machine controller MS as to whether the heating temperature profiles or setpoint temperature ranges individually individually predetermined for the various heatable components of the hot runner gate system 1 have been achieved or maintained.
  • the central machine controller MS uses this information to release or start a respective mold filling operation and thus the feeding of melt into the hot runner-gate system 1 only when it has been informed by the central control unit ZR that all predetermined temperature profiles or Set temperatures for the individual heatable components of the hot runner-Angusssystems 1, ie for the sprue block units 3a to 3d, the transverse manifold blocks 2b and the longitudinal manifold block 2a, achieved or respected.
  • the temperature in one or more components of the hot runner gate system 1, eg the temperature in the longitudinal manifold block 2a or one of the two transverse distributor blocks 2b or the temperature for the inlet channel 7 and / or the temperature for at least one of the two sprue channels 11a, 11b in one of the sprue block units 3a to 3d does not lie in the desired, predetermined nominal temperature window.
  • a further advantage of the invention is the modular design of the hot runner gate system 1, which can be realized in virtually any desired configuration from one or more runner block units, which are designed as units which can be used independently in a respective casting mold, and an upstream manifold block structure.
  • runner block units which are designed as units which can be used independently in a respective casting mold, and an upstream manifold block structure.
  • a suitable number of sprue block units for example with the in FIGS. 2 and 3 shown construction over a solid mold half distributed in corresponding recesses thereof are used.
  • Fig. 1 By way of example, a configuration with four sprue block units in a rectangular distribution is shown.
  • the mating manifold construction with a longitudinal manifold block and two transverse manifold blocks distributes the melt to the runner block units and also serves as a common support or mounting frame to which the sprue block assemblies are attached.
  • any other number of such stand-alone sprue block units may be used in any other geometric arrangement, with appropriate associated manifold structure, which in turn may consist of a single manifold block or a plurality of manifold blocks attached to one another depending on the application.
  • Fig. 4 shows the gating system 1 in an installed position in a mold with a fixed mold half 25 and a movable mold half 27 which abut each other in closed mold, as shown, along a parting plane 26 to form a mold cavity 28, the sectional plane of Fig. 4 those of Fig. 2 corresponds, ie it can be recognized in Fig. 4 the sprue block unit 3a with its associated transverse distributor 2 B.
  • the sprue system 1 with its four sprue block units and its distributor block structure is inserted into corresponding recesses 29 of the fixed mold half 25.
  • the gate openings 12a, 12b are opposite a gate channel 30, which leads with a short length directly into the mold cavity 28, from which in the sectional plane of the Fig. 4 only a small section can be seen.
  • the supplied melt passes from the rotor channel 6 of the transverse distributor block 2b into the inlet channel 7 of the respective sprue block unit, then distributes itself into the sprue channels 11a, 11b and is forced into the mold cavity 28 via the gate openings 12a, 12b and the gate channels 30. In this case, it is actively heated on its conveying path until it leaves the sprue openings 12a, 12b.
  • the heating in the respective sprue block unit by the two separately controllable or controllable heaters with one or more heating circuits 13a, 13b and 14a, 14b for heating the inlet channel 7 and the sprue channels 11a, 11b very flexible and sensitively, in particular a desired temperature profile for the conveying path of the melt in the respective sprue block unit can be predetermined and maintained.
  • the melt can be up to its entry into the mold cavity 28 via the gates 30 in a predeterminable manner controlled or controlled active heating.
  • a hot runner runner system having a whole set of different configurations of runner block units, each with associated manifold block construction, may be provided for use in various molds.
  • the respective sprue block unit is designed as an independent unit which can be used in a respective casting mold and consequently is not an insoluble component of a fixed mold half or of a sprue block mounted inseparably thereon, the respective sprue block unit or an entire hot runner gate system with one or more sprue block units and associated manifold block construction are used for different molds when needed, ie the sprue block unit or the hot runner gate system, after it was first used in a first mold, removed therefrom and can subsequently or later in another mold can be used.
  • FIG. 5 a configuration of a hot runner-Angusssystems 1 'according to the invention, the three sprue block units 3e, 3f, 3g of the in FIGS. 2 and 3 shown in a star-shaped, triangular arrangement with a manifold block construction, which is formed by a single, three-pronged manifold block 2 'with inlet-side, central Angusmund Kab 4'.
  • a manifold block construction which is formed by a single, three-pronged manifold block 2 'with inlet-side, central Angusmund Fabric 4'.
  • a manifold block construction which is formed by a single, three-pronged manifold block 2 'with inlet-side, central Angusmund Kab 4'.
  • the distributor block 2 'and the sprue block units 3e, 3f, 3g are in the same manner as above for the embodiment of Fig. 1 to 4 described separately associated heating elements associated with individual heating control circuits and an associated central control unit, which here no repeated description needs. Otherwise, the hot runner gate system corresponds to 1 'of Fig. 5 in its mode of action and its advantages to that of the Fig. 1 to 4 , to which reference can be made.
  • the modular hot runner gate system according to the invention is suitable e.g. for hot chamber die casting machines, but it is equally usable for die casting machines of the cold chamber type.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The molten metal pouring block unit (3a) has molten metal passages (7,11a,11b) opened in block housing (8) through openings (12a,12b). The heating circuits (13a,13ab,14a,14b) are inserted into each casting molds, for heating each of the pouring passages individually.

Description

Die Erfindung bezieht sich auf eine Angussblockeinheit für ein Heißkanal-Angusssystem einer Druckgießmaschine, wobei die Angussblockeinheit einen Blockkörper, in den wenigstens ein schmelzeführender Kanal eingebracht ist, der einen Zulaufkanalbereich und einen davon abgehenden, aus dem Blockkörper mit einer anschnittnahen Angussmündung ausmündenden Angusskanalbereich umfasst, und eine in den Blockkörper integrierte Heizung für den wenigstens einen schmelzeführenden Kanal aufweist. Weiter bezieht sich die Erfindung auf ein Heißkanal-Angusssystem mit einer oder mehreren beheizbaren Angussblockeinheiten und auf eine Steuerungseinrichtung für eine Druckgießmaschine mit Heißkanal-Angusssystem.The invention relates to a sprue block unit for a hot runner gate system of a die casting machine, wherein the sprue block unit comprises a block body, into which at least one melt-carrying channel is introduced, which comprises an inlet channel region and a runner, which emerges from the block body with a sprue mouth, and comprising a heater integrated in the block body for the at least one melt-carrying channel. Further, the invention relates to a hot runner gate system with one or more heated sprue block units and to a control device for a die casting machine with hot runner gate system.

In der Patentschrift EP 1 201 335 B1 ist ein derartiges Heißkanal-Angusssystem offenbart, das zum Beispiel als Kern- oder Fächerangusssystem ausgebildet ist, bei dem ein Angussteil, der unlösbarer Bestandteil einer festen Formhälfte ist, eine Mehrzahl von verteilt angeordneten Düsen bzw. Angusskörpern beinhaltet, die jeweils einen mittigen Zulaufkanal und eine Düsenspitze mit einem oder mehreren Angusskanälen aufweisen, die an den Zulaufkanal anschließen und einen demgegenüber geringeren Kanalquerschnitt besitzen. Die Angusskanäle enden jeweils in einer anschnittnahen Angussmündung, worunter zu verstehen ist, dass die betreffende Angussmündung direkt den sogenannten Anschnitt bildet bzw. sich unmittelbar vor diesem Anschnittbereich befindet. Unter dem Anschnitt bzw. Anschnittbereich wird die Stelle verstanden, an welcher die gegossene Form vom Angussrest der Schmelze abreißt, d.h. der Anschnitt bildet die Sollbruchstelle für die gegossene Form von erstarrter Schmelze im angrenzenden Angussbereich. Dies bedeutet, dass die Angussmündung bei diesem Angusssystem direkt am Rand des Formhohlraums oder unmittelbar vor diesem liegt. Die Schmelzezufuhr in die Düsenzulaufkanäle erfolgt von einem Angussmundstück, das an der Eintrittsseite des Angussteils ausgebildet ist, über verteilende Laufkanäle im Angussteil. Die Laufkanäle sind beheizbar, und zusätzlich ist jeder Düse ein eigenes Heizelement in Form eines den zylindrischen Düsenkörper umgebenden elektrischen Heizelementes zugeordnet.In the patent EP 1 201 335 B1 is such a hot runner-Angusssystem disclosed, for example, is designed as a core or Fächerangusssystem in which a Angussteil that is insoluble part of a solid mold half, arranged a plurality of distributed Includes nozzles or sprue bodies, each having a central inlet channel and a nozzle tip with one or more sprue channels, which connect to the inlet channel and have a contrast smaller channel cross-section. The sprue channels each terminate in a sprue muzzle close to the gate, which means that the sprue muzzle in question directly forms the so-called gating or is located directly in front of this gated area. The gate or gate area is understood to mean the point at which the cast mold breaks off from the sprue of the melt, ie the gate forms the predetermined breaking point for the cast mold of solidified melt in the adjacent gate area. This means that the gate at this gate system is directly at the edge of the mold cavity or immediately before it. The supply of melt into the nozzle feed channels takes place from a sprue tip, which is formed on the inlet side of the sprue piece, via distributing feed channels in the sprue part. The running channels are heated, and in addition, each nozzle is associated with its own heating element in the form of an electrical heating element surrounding the cylindrical nozzle body.

Die Offenlegungsschrift DE 199 10 853 A1 offenbart eine Druckgießmaschine mit einem beheizten Schmelzeverteiler und mehreren beabstandeten, beheizten Düsen, die in einer Gießform sitzen und jeweils eine Schmelzebohrung besitzen, um Schmelze an einen zu einem Hohlraum führenden Anguss zu befördern. Der Schmelzeverteiler weist einen Schmelzedurchlass und mehrere durch ihn hindurch verlaufende, beabstandete transversale Öffnungen auf, die jeweils zu einer der Düsen ausgerichtet sind, wobei der Schmelzedurchlass mehrere Verzweigungen, die sich von einem gemeinsamen Einlassabschnitt auswärts zu jeder der Düsen erstrecken, sowie mehrere Einsätze aufweist, von denen jeder eine hintere Fläche, eine vordere Fläche, eine äußere Oberfläche und einen durch ihn hindurch verlaufenden Schmelzekanal besitzt. Jeder dieser Einsätze ist in einer der transversalen Öffnungen im Schmelzeverteiler derart aufgenommen, dass die vordere Fläche am hinteren Ende einer entsprechenden Düse anliegt, wobei der Schmelzekanal eine sanft gekrümmte Biegung von im Wesentlichen 90° aufweist, die von einem Einlass an der äußeren Oberfläche, der auf eine der Verzweigungen des Schmelzedurchlasses im Schmelzeverteiler ausgerichtet ist, zu einem Auslass an der vorderen Fläche verläuft, der auf die Schmelzbohrung der entsprechenden Düse ausgerichtet ist. Dabei ist jede transversale Öffnung ebenso wie die äußere Oberfläche jedes Einsatzes zylindrisch.The publication DE 199 10 853 A1 discloses a die casting machine having a heated melt distributor and a plurality of spaced, heated nozzles sitting in a mold and each having a melt bore for conveying melt to a gate leading to a cavity. The melt distribution manifold has a melt passageway and a plurality of spaced apart transverse openings therethrough, each aligned with one of the nozzles, the melt passageway having a plurality of branches extending outwardly from each of the nozzles from a common inlet section, and a plurality of inserts; each of which has a rear surface, a front surface, an outer surface and a melt passage therethrough. Each of these inserts is in one of the transverse openings in the Melt dispenser is received such that the front surface abuts the rear end of a corresponding nozzle, wherein the melt channel has a gently curved bend of substantially 90 °, which is an inlet on the outer surface which is aligned with one of the branches of the melt passage in the melt distribution , to an outlet on the front surface, which is aligned with the melt bore of the corresponding nozzle. Each transverse opening is cylindrical, as is the outer surface of each insert.

Die Offenlegungsschrift WO 03/018236 A1 offenbart ein Verfahren zur Herstellung von Magnesiumdruckgussteilen mittels einer Druckgießmaschine, deren Strömungspfadquerschnitt entlang der Schmelzefließrichtung in definierter Weise festgelegt wird, um eine Reduzierung der Fließgeschwindigkeit derart zu erzielen, dass die Schmelze von einem geschmolzenen in einen halbverfestigten, teigigen Zustand übergeht, bevor sie in den Formhohlraum gelangt. Dazu ist zwischen einer üblichen Düse und dem Anschnittbereich eine beheizbare Düsenverlängerung mit spezieller Querschnittgestaltung ihrer längsmittigen Strömungskanalbohrung vorgesehen.The publication WO 03/018236 A1 discloses a method for producing magnesium die cast parts by means of a die casting machine whose flow path cross section along the melt flow direction is defined in a defined manner to achieve a reduction in flow rate such that the melt transitions from a molten to a semi-solidified doughy state before entering the mold cavity arrives. For this purpose, a heatable nozzle extension with a special cross-sectional configuration of its longitudinal center flow channel bore is provided between a conventional nozzle and the gate area.

Die Offenlegungsschrift DE 103 59 692 A1 offenbart eine Spritzgießvorrichtung mit einem Angusssystem, das einen für Spritzgießen geeigneten Ventilnadelverschluss mit Schmelzepfropfenbildung und zugehöriger Pfropfenheizung beinhaltet.The publication DE 103 59 692 A1 discloses an injection molding apparatus having a gate system including a valve pin closure with melt plug formation and plug heating suitable for injection molding.

Die Offenlegungsschrift JP 63-137561 A offenbart eine Warmkammer-Druckgießmaschine, bei der ein Temperatursensor die Temperatur an der Innenseite einer Schmelzeauslassdüse im Bereich des Düsenauslasses erfasst, wobei der Temperatursensor zwei Thermoelemente mit unterschiedlichem Abstand von einer Wärmeaufnahmefläche umfasst, um auch die Wärmeleitungsgeschwindigkeit zu ermitteln. Abhängig von der Temperaturinformation dieses Temperatursensors werden das Verschließen und die Beheizung der Düse sowie die Geschwindigkeit und der Gießdruck eines Gießkolbens automatisch gesteuert.The publication JP 63-137561 A discloses a hot chamber die casting machine in which a temperature sensor senses the temperature at the inside of a melt outlet nozzle in the region of the nozzle outlet, the temperature sensor comprising two thermocouples at different distances from a heat receiving surface to also determine the heat conduction velocity. Depending on the temperature information of this temperature sensor, the closing and heating of the nozzle and the speed and the casting pressure of a casting piston are automatically controlled.

Die Patentschrift US 5,286,184 offenbart einen Düsenaufbau für eine Spritzgießvorrichtung, bei dem die Düse einen Zulaufkanal aufweist, der sich vor der Düsenmündung in vier Einzelkanäle verzweigt. Der unverzweigte Zulaufkanalabschnitt ist durch eine zugeordnete Heizeinrichtung beheizbar, während den verzweigten Kanalabschnitten keine Heizeinrichtung zugeordnet ist.The patent US 5,286,184 discloses a nozzle assembly for an injection molding apparatus, wherein the nozzle has an inlet channel, which branches in front of the nozzle orifice into four individual channels. The unbranched inlet channel section can be heated by an associated heating device, while the branched channel sections no heating device is assigned.

Der Erfindung liegt als technisches Problem die Bereitstellung einer Angussblockeinheit der eingangs genannten Art sowie eines Heißkanal-Angusssystems und einer Steuerungseinrichtung für eine Druckgießmaschine zugrunde, mit denen sich die Flexibilität des Angusssystems von Druckgießmaschinen und/oder die Schmelzebeheizung im Angusssystem und/oder die Steuerung der Druckgießmaschine gegenüber dem oben erwähnten Stand der Technik verbessern lassen.The invention is based on the technical problem of providing a sprue block unit of the type mentioned above and a hot runner gate system and a control device for a die casting machine, with which the flexibility of Angusssystems die casting machines and / or the melt heating in Angusssystem and / or the control of the die casting machine can be improved over the above-mentioned prior art.

Die Erfindung löst dieses Problem durch die Bereitstellung einer Angussblockeinheit mit den Merkmalen des Anspruchs 1, eines Heißkanal-Angusssystems mit den Merkmalen des Anspruchs 3 sowie einer Steuerungseinrichtung mit den Merkmalen des Anspruchs 6.The invention solves this problem by providing a sprue block unit having the features of claim 1, a hot runner gate system having the features of claim 3 and a control device having the features of claim 6.

Die erfindungsgemäße Angussblockeinheit ist als eigenständig in eine jeweilige Gießform einsetzbare Baueinheit mit einem Blockkörper ausgebildet, in den wenigstens ein schmelzeführender Kanal eingebracht und eine Heizung integriert ist. Mit anderen Worten ist die Angussblockeinheit kein fester, unlösbarer Angussblockteil einer Gießform bzw. Formhälfte, sondern kann modular und flexibel in verschiedenen Gießformen zum Einsatz kommen, die dazu mit korrespondierenden Aufnahmeöffnungen versehen sind. Dabei können auch mehrere derartige Angussblockeinheiten in einer beliebigen Anordnungskonfiguration je nach Größe und Art der Gießform verwendet werden. Der wenigstens eine schmelzeführende Kanal umfasst einen Zulaufkanalbereich und einen davon abgehenden, mit einer anschnittnahen Angussmündung aus dem Blockkörper der Angussblockeinheit ausmündenden Angusskanalbereich, was bedeutet, dass die Angussblockeinheit mit dieser anschnittnahen Angussmündung den Anschnittbereich für die betreffende Form bildet oder diesem unmittelbar vorgelagert ist. Dabei weist die Heizung eine erste Heizeinrichtung zur Beheizung des Zulaufkanalbereichs und eine zweite Heizeinrichtung zur Beheizung des Angusskanalbereichs auf. Dies bedeutet, dass die Schmelze durch Verwendung dieser Angussblockeinheit auf ihrem Förderweg bis unmittelbar vor Erreichen des Formhohlraums aktiv beheizt werden kann.The sprue block unit according to the invention is designed as a unit that can be used independently in a respective casting mold with a block body into which at least one melt-carrying channel is inserted and a heater is integrated. In other words, the sprue block unit is not a solid, permanent sprue block part of a mold or mold half, but can be used modularly and flexibly in various molds, which are provided with corresponding receiving openings. In this case, a plurality of such sprue block units can be used in any arrangement configuration depending on the size and type of the mold. The least a melt-carrying channel comprises an inlet channel region and a sprue channel region emanating therefrom, with a sprue opening close to the block body of the sprue block unit, which means that the sprue block unit forms the gate area for the respective shape or is located immediately upstream of this gate near the gate. In this case, the heater has a first heating device for heating the inlet channel region and a second heating device for heating the sprue channel region. This means that the melt can be actively heated by using this sprue block unit on its conveying path until immediately before reaching the mold cavity.

In Weiterbildung der Erfindung ist die zweite Heizeinrichtung separat von der ersten Heizeinrichtung steuer- oder regelbar. Dadurch können bei Bedarf die Temperaturen in Bereich des Zulaufkanals und im Bereich der abzweigenden Angusskanäle variabel und unabhängig voneinander eingestellt werden.In a development of the invention, the second heating device can be controlled or regulated separately from the first heating device. As a result, if required, the temperatures in the region of the inlet channel and in the region of the branching sprue channels can be set variably and independently of one another.

Das Heißkanal-Angusssystem nach Anspruch 3 weist wenigstens eine erfindungsgemäße Angussblockeinheit auf. Des Weiteren beinhaltet es wenigstens einen Heizungsregelkreis zur geregelten Beheizung der wenigstens einen Angussblockeinheit und/oder einen speziellen Verteilerblockaufbau.The hot runner gate system according to claim 3 has at least one sprue block unit according to the invention. Furthermore, it includes at least one heating control loop for the controlled heating of the at least one sprue block unit and / or a special distributor block structure.

Der Heizungsregelkreis weist wenigstens zwei individuell zur Einregelung eines vorgebbaren Temperaturprofils geregelte Heizelemente für die jeweilige Angussblockeinheit oder zwei separat steuer- oder regelbare Heizeinrichtungen zur Zulauf- bzw. Angusskanalbeheizung auf. Dies ermöglicht im Betrieb eine vergleichsweise variable und genaue Einstellung der Temperatur für die durch die Angussblockeinheit strömende Schmelze, bevor die Schmelze von dort direkt in den Formhohlraum gelangt. Es versteht sich, dass bei Bedarf weitere individuell geregelte Heizelemente entlang des der Angussblockeinheit vorgeschalteten Schmelzeströmungsweges vorgesehen sein können.The heating control loop has at least two heating elements for the particular sprue block unit, which are controlled individually for adjusting a predeterminable temperature profile, or two separately controllable or controllable heating devices for inlet or runner heating. This allows in operation a comparatively variable and accurate adjustment of the temperature for the melt flowing through the sprue block unit before the melt passes directly from there into the mold cavity. It is understood that, if required, further individually controlled heating elements can be provided along the melt flow path upstream of the sprue block unit.

An dem Verteilerblockaufbau sind auf einer Angussseite die eine oder mehreren Angussblockeinheiten angebracht. Der Verteilerblockaufbau ist mit einem oder mehreren Laufkanälen versehen, über die Schmelze dem oder den schmelzeführenden Kanälen der einen oder mehreren Angussblockeinheiten zugeführt werden kann. Der Verteilerblockaufbau bildet auf diese Weise mit der oder den an ihm angebrachten Angussblockeinheiten eine variabel einsetzbare, modulare Baueinheit, die je nach Anwendungsfall unterschiedlich konfiguriert und in eine Form bzw. Formhälfte eingesetzt werden kann. Beispielsweise können zur Realisierung eines Heißkanal-Kamm-Angusssystems mehrere Angussblockeinheiten in einer linearen, d.h. eindimensionalen, Konfiguration oder in einer zweidimensional verteilten Konfiguration am Verteilerblockaufbau angeordnet und so an verteilten Stellen auf einer Angussseite in eine Form bzw. Formhälfte eingesetzt werden.On the manifold block assembly, the one or more runner block units are mounted on a runner side. The manifold block assembly is provided with one or more flow channels through which melt can be supplied to the melt-carrying channel (s) of the one or more runner block units. In this way, with the sprue block units attached to it, the distributor block structure forms a variably deployable, modular structural unit which, depending on the application, can be configured differently and inserted into a mold or mold half. For example, to realize a hot runner comb gate system, a plurality of runner block units may be arranged in a linear, i. one-dimensional, configuration or in a two-dimensionally distributed configuration arranged on the manifold block structure and so are used at distributed locations on a sprue side in a mold or mold half.

In einer Weiterbildung der Erfindung weist der Verteilerblockaufbau einen oder mehrere Verteilerblockelemente auf, wobei das jeweilige Verteilerblockelement aktiv beheizt werden kann. Dies gewährleistet eine kontinuierlich beheizte Verteilung von Schmelze, die dem Verteilerblockaufbau z.B. über eine vorgeschaltete Dosiereinheit mit Gießkolben und Düse zugeführt wird, auf die einzelnen, an den Verteilerblockaufbau angekoppelten Angussblockeinheiten.In one development of the invention, the distribution block structure has one or more distribution block elements, wherein the respective distribution block element can be actively heated. This ensures a continuously heated distribution of melt, which may be added to the manifold block assembly e.g. is supplied via an upstream metering unit with casting piston and nozzle, on the individual, to the manifold block assembly coupled sprue block units.

In einer Weiterbildung der Erfindung verfügt das Heißkanal-Angusssystem über eine Angusssystem-Temperatursensorik und eine Steuerungseinrichtung, die dafür eingerichtet ist, eine Temperaturinformation der Angusstemperatur-Sensorik zu empfangen und in Abhängigkeit davon einen Formfüllvorgang der Druckgießmaschine zu steuern. Dadurch kann der Formfüllvorgang, d.h. das Füllen des Formhohlraums mit der Schmelze, von der erfassten Temperatur der Schmelze im Angusssystemteil abhängig gemacht werden.In a further development of the invention, the hot runner-gate system has a gate system temperature sensor and a control device which is adapted to receive a temperature information of the gate temperature sensor system and to control a mold filling operation of the die casting machine in dependence thereon. Thereby, the mold filling operation, ie the filling of the mold cavity with the melt, can be made dependent on the detected temperature of the melt in the runner system part.

Die Steuerungseinrichtung nach Anspruch 6 ist zur Steuerung einer Druckgießmaschine bestimmt, die zur Herstellung von Metalldruckgussteilen dient und ein erfindungsgemäßes Heißkanal-Angusssystem sowie eine Angusssystem-Temperatursensorik aufweist. Die Steuerungseinrichtung ist dafür ausgelegt, einen jeweiligen Formfüllvorgang in Abhängigkeit von einer ihr durch die Angusssystem-Temperatursensorik gelieferten Temperaturinformation zu steuern. Dies wird dazu genutzt, den jeweiligen Formfüllvorgang erst freizugeben bzw. zu starten, wenn eine oder mehrere von der Angusssystem-Temperatursensorik erfasste Temperaturen im Heißkanal-Angusssystem innerhalb eines jeweils vorgegebenen Solltemperaturbereichs bzw. Solltemperaturfensters liegen. Damit wird sichergestellt, dass das Gießen der Form erst erfolgt, wenn vorgegebene gewünschte Temperaturbedingungen im Angusssystem herrschen, z.B. in einer oder mehreren, im Heißkanal-Angusssystem verwendeten erfindungsgemäßen Angussblockeinheiten.The control device according to claim 6 is intended for controlling a die casting machine, which is used for the production of metal die castings and has a hot runner gate system according to the invention and a gate system temperature sensor system. The control device is designed to control a respective mold filling operation as a function of a temperature information supplied to it by the gate system temperature sensor. This is used to release or start the respective mold filling process only when one or more temperatures detected in the hot runner gate system by the runner system temperature sensor are within a respective predetermined setpoint temperature range or setpoint temperature window. This ensures that the casting of the mold only takes place when predetermined desired temperature conditions prevail in the sprue system, for example in one or more sprue block units according to the invention used in the hot runner gate system.

Vorteilhafte Ausführungsformen der Erfindung sind in den Zeichnungen dargestellt und werden nachfolgend beschrieben. Hierbei zeigen:

Fig. 1
ein schematisches Blockdiagramm eines perspektivisch wie-dergegebenen Heißkanal-Angusssystems für eine Druckgieß- maschine in einer viereckförmigen Konfiguration mit zugehörigem Steuerungs-/Regelungsteil,
Fig. 2
eine Längsschnittansicht des Angusssystems von Fig. 1 entlang einer Linie II-II in Fig. 1 mit zugehörigem Heizungsregelkreis,
Fig. 3
eine Längsschnittansicht des Angusssystems von Fig. 1 entlang einer Linie III-III in Fig. 1,
Fig. 4
eine Längsschnittansicht des Angusssystems von Fig. 1 entsprechend Fig. 2 in einer Einbaulage und
Fig. 5
eine schematische Perspektivansicht eines weiteren Heißkanal-Angusssystems in einer sternförmigen Konfiguration.
Advantageous embodiments of the invention are illustrated in the drawings and will be described below. Hereby show:
Fig. 1
FIG. 2 is a schematic block diagram of a perspective hot-runner gate system for a die-casting machine in a quadrangular configuration with associated control part; FIG.
Fig. 2
a longitudinal sectional view of the Angusssystems of Fig. 1 along a line II-II in Fig. 1 with associated heating loop,
Fig. 3
a longitudinal sectional view of the Angusssystems of Fig. 1 along a line III-III in Fig. 1 .
Fig. 4
a longitudinal sectional view of the Angusssystems of Fig. 1 corresponding Fig. 2 in a mounting position and
Fig. 5
a schematic perspective view of another hot runner-Angusssystems in a star-shaped configuration.

Der in Fig. 1 mit den hier interessierenden Komponenten gezeigte Angusssystem- und Steuerungsteil einer Druckgießmaschine beinhaltet ein Heißkanal-Angusssystem 1 mit einem modularen Aufbau, der einen Verteilerblockaufbau 2 und an diesem auf einer Angussseite angebrachte Angussblockeinheiten umfasst, im gezeigten Beispiel vier Angussblockeinheiten 3a, 3b, 3c, 3d. Bei der Druckgießmaschine kann es sich z.B. um eine Warmkammer-Druckgießmaschine für Zink- oder Magnesiumdruckguss handeln, alternativ auch um eine Warmkammer-Druckgießmaschine für andere damit gießbare Werkstoffe oder um eine Druckgießmaschine für Metalldruckguss vom Kaltkammertyp.The in Fig. 1 The sprue system and control part of a die casting machine shown with the components of interest includes a hot runner gate system 1 of modular construction comprising a manifold block assembly 2 and sprue block units attached thereto on a sprue side, in the example shown four sprue block units 3a, 3b, 3c, 3d. The die casting machine can be, for example, a hot-chamber die casting machine for zinc or magnesium die-casting, alternatively also a hot-chamber die casting machine for other materials castable therewith or a die casting machine for metal diecasting of the cold chamber type.

Der Verteilerblockaufbau 2 beinhaltet im gezeigten Beispiel einen Längsverteilerblock 2a und zwei an gegenüberliegenden Endbereichen des Längsverteilerblocks 2a angeordnete Querverteilerblöcke 2b. Der Längsverteilerblock 2a weist auf einer in Fig. 1 oberen Seite eine mittige Einlassöffnung 4 als Angussmundstück des Heißkanal-Angusssystems 1 auf, an das in herkömmlicher, hier nicht weiter gezeigter Weise eine endseitige Düse einer Gießkolbeneinheit einer vorgeschalteten Schmelzedosiereinheit der Druckgießmaschine angesetzt werden kann. Vom Angussmundstück 4 führt ein längsmittiger Läuferkanal 5, wie in der Schnittdarstellung von Fig. 3 zu erkennen, zu den Endbereichen des Längsverteilerblocks 2a, wo der Läuferkanal 5 in je einen längsmittigen Läuferkanal 6 des betreffenden, fluiddicht angekoppelten Querverteilerblocks 2b übergeht, der seinerseits an den Endbereichen in einen Zulaufkanal 7 der betreffenden, fluiddicht angekoppelten Angussblockeinheit 3a bis 3d übergeht.In the example shown, the distributor block assembly 2 includes a longitudinal distributor block 2a and two transverse distributor blocks 2b arranged at opposite end regions of the longitudinal distributor block 2a. The longitudinal distribution block 2a has an in Fig. 1 upper side a central inlet opening 4 as Angus mouthpiece of the hot runner-Angusssystems 1, to which in a conventional, not further shown manner, an end nozzle of a casting piston unit of an upstream melt metering unit of the die casting machine can be attached. From Angus mouthpiece 4 performs a longitudinal center rotor channel 5, as in the sectional view of Fig. 3 to recognize, to the end portions of the longitudinal manifold block 2a, where the rotor channel 5 merges into a respective longitudinal rotor channel 6 of the respective fluid-tight coupled transverse manifold block 2b, which in turn merges at the end into an inlet channel 7 of the respective fluid-tight coupled sprue block unit 3a to 3d.

Jede Angussblockeinheit 3a bis 3d ist in gleicher Weise aus einem Blockkörper 8 mit integrierter Heizung aufgebaut. Der Aufbau der jeweiligen Angussblockeinheit 3a bis 3d ist aus den Schnittansichten der Fig. 2 und 3 näher zu erkennen. Speziell beinhaltet er im gezeigten Beispiel einen T-förmigen Grundkörper 9 mit langgestrecktem Mitteldom 9a, in den der Zufuhrkanal 7 als mittige Axialbohrung eingebracht ist, und davon quer abragendem Fußteil 9b. Im Fußteil 9b sind von der Ausmündung des Zulaufkanals 7 zu zwei entgegengesetzten Seiten quer abführende Angusskanäle 11a, 11 b ausgebildet, die im entsprechenden unteren Seitenbereich der Angussblockeinheit 3a bis 3d mit je einer schlitzförmigen anschnittnahen Angussmündung 12a, 12b ausmünden. Im Bodenbereich unter den Angusskanälen 11a, 11 b ist im Fußteil 9b eine thermische Isolationsschicht 10 vorgesehen.Each sprue block unit 3a to 3d is constructed in the same way from a block body 8 with integrated heating. The construction of the respective sprue block units 3a to 3d is shown in the sectional views of FIGS FIGS. 2 and 3 to recognize closer. Specifically, it includes in the example shown, a T-shaped base body 9 with elongated central dome 9a, in which the supply channel 7 is introduced as a central axial bore, and thereof quer querendem foot part 9b. In the foot part 9b are formed from the mouth of the inlet channel 7 to two opposite sides transverse laxative runners 11a, 11b, which open in the corresponding lower side region of the sprue block unit 3a to 3d, each with a slot-shaped gate opening 12a, 12b close to the gate. In the bottom area under the sprue channels 11a, 11b, a thermal insulation layer 10 is provided in the foot part 9b.

Der Zulaufkanal 7 bildet zusammen mit den beiden von ihm endseitig quer abführenden Angusskanälen 11a, 11 b, die vorzugsweise jeweils einen kleineren Durchlassquerschnitt als der Zulaufkanal 7 aufweisen, einen schmelzeführenden Kanal, durch den im Betrieb die über den Verteilerblockaufbau 2 zugeführte Schmelze in der jeweiligen Angussblockeinheit 3a bis 3d direkt zum Anschnittbereich einer Form und somit direkt in oder bis unmittelbar vor einen mit der Schmelze zu befüllenden Formhohlraum geführt wird. Mit der in den Blockkörper 8 integrierten Heizung wird dieses schmelzeführende Kanalsystem der Angussblockeinheit 3a bis 3d gezielt aktiv beheizt.The inlet channel 7, together with the two ends of the sprue channels 11a, 11b which transversely discharge it at the end, preferably each have a smaller passage cross-section than the inlet channel 7, a melt-carrying channel, through which in operation the melt supplied via the distributor block assembly 2 in the respective sprue block unit 3a to 3d directly to the gate region of a mold and thus directly into or until immediately before a to be filled with the melt mold cavity. With the heater integrated in the block body 8, this melt-carrying channel system of the sprue block unit 3a to 3d is actively heated in a targeted manner.

Dazu umfasst die integrierte Heizung eine primär der Zulaufkanalbeheizung dienende erste Heizeinrichtung und eine primär zur Angusskanalbeheizung dienende zweite Heizeinrichtung, die separat von der ersten Heizeinrichtung steuer- bzw. regelbar ist. Im gezeigten Beispiel beinhaltet die erste Heizeinrichtung zwei separat ansteuerbare Heizkreise 13a, 13b, die an der Mantelfläche des Mitteldoms 9a angeordnet sind, und die zweite Heizeinrichtung weist zwei separat ansteuerbare elektrische Heizkreise 14a, 14b auf, die ebenfalls getrennt voneinander sowie getrennt von den Heizkreisen 13a, 13b der ersten Heizeinrichtung ansteuerbar sind und auf dem Fußteil 9b des Grundkörpers 9 angeordnet sind. Nach außen bzw. oben sind die elektrischen Heizkreise 13a bis 14b, die z.B. durch geeignet konfigurierte Heizdrahtelemente realisiert sein können, durch einen thermischen Isolationsring 15 abgeschirmt, der seinerseits von einem außenbündig zum Fußteil 9b angeordneten Außenmantel 16 der Angussblockeinheit 3a bis 3d umgeben ist.For this purpose, the integrated heater comprises a first heating device serving primarily the inlet channel heating and a second heating device serving primarily for sprue channel heating, which can be controlled or regulated separately from the first heating device. In the example shown, the first heating device includes two separately controllable heating circuits 13a, 13b, which are arranged on the lateral surface of the central dome 9a, and the second heating device has two separately controllable electrical heating circuits 14a, 14b, which are also separated from each other and separate from the heating circuits 13a , 13b of the first heating device are controllable and are arranged on the base part 9b of the base body 9. To the outside are the electric heating circuits 13a to 14b, e.g. can be realized by suitably configured Heizdrahtelemente, shielded by a thermal insulation ring 15, which in turn is surrounded by an outside flush with the foot part 9b arranged outer shell 16 of the sprue block unit 3a to 3d.

Der integrierten Heizung jeder Angussblockeinheit 3a bis 3d ist, wie in Fig. 2 dargestellt, jeweils ein Heizungsregelkreis mit einer Regeleinheit 17 zugeordnet, die über einen elektrischen Verstärker 18 geeignete Stellsignale 19, d.h. Heizstromsignale, separat für jeden der getrennt ansteuerbaren Heizkreise bzw. Heizelemente 13a bis 14b abgibt. Über herkömmliche, hier nicht näher gezeigte Temperatursensoren, die an geeigneter Stelle in der Nähe des jeweiligen Heizkreises 13a bis 14b angeordnet sind, werden entsprechende Temperatur-Istwertinformationen 20 bezüglich jedes Heizkreises 13a bis 14b der Regeleinheit 17 zugeführt, die in Abhängigkeit davon unter Berücksichtigung von über einen Sollwerteingang eingebbaren Sollwertinformationen 21 die Stellsignale 19 erzeugt.The integrated heater of each runner block unit 3a to 3d is as in FIG Fig. 2 represented, in each case a heating control loop associated with a control unit 17, which emits via an electrical amplifier 18 suitable control signals 19, ie heating current signals, separately for each of the separately controllable heating circuits or heating elements 13a to 14b. about conventional, not shown in detail temperature sensors, which are arranged at a suitable location in the vicinity of the respective heating circuit 13a to 14b, corresponding temperature actual value information 20 with respect to each heating circuit 13a to 14b of the control unit 17 is supplied, which in consideration of taking over a Setpoint input input setpoint information 21, the control signals 19 generates.

Durch das Anordnen der zweiten Heizeinrichtung für die Angusskanalbeheizung zusätzlich zur ersten Heizeinrichtung für die Zulaufkanalbeheizung lässt sich mit diesem Heizungsregelkreis mittels geeigneter Vorgabe der entsprechenden Temperatur-Sollwertinformationen ein gewünschtes Temperaturprofil für den beheizten, aus dem Zulaufkanal 7 und den Angusskanälen 11a, 11 b bestehenden schmelzeführenden Kanal der Angussblockeinheit 3a bis 3d sehr variabel wählen und sehr exakt einhalten. Insbesondere ist es durch die beiden separat ansteuerbaren Heizeinrichtungen möglich, eine im Bereich der Angusskanäle 11a, 11 b gewünschte Temperatur unabhängig von der für den Zulaufkanal 7 gewünschten Temperatur einzustellen und einzuhalten. Wenn wie im gezeigten Beispiel die jeweilige Heizeinrichtung aus mehreren unabhängig ansteuerbaren Heizkreisen bzw. Heizelementen aufgebaut ist, kann zudem das Temperaturprofil im Zulaufkanalbereich und/oder im Angusskanalbereich vergleichsweise fein eingestellt und geregelt werden. Bei Bedarf kann hierbei auch ein ortsabhängig entlang des Schmelzeweges bzw. Förderweges der Schmelze im Zulaufkanal 7 und/oder den Angusskanälen 11a, 11 b veränderliches Temperaturprofil vorgegeben und eingeregelt werden.By arranging the second heater for the sprue heating in addition to the first heater for Zulaufkanalbeheizung can be with this heating loop by means of suitable specification of the corresponding temperature setpoint information a desired temperature profile for the heated, consisting of the inlet channel 7 and the sprue channels 11 a, 11 b melt-carrying channel the sprue block unit 3a to 3d choose very variable and comply very precisely. In particular, it is possible by means of the two separately controllable heating devices to set and maintain a desired temperature in the region of the sprue channels 11a, 11b independently of the temperature desired for the inlet channel 7. If, as in the example shown, the respective heating device is made up of a plurality of independently controllable heating circuits or heating elements, the temperature profile in the inlet channel region and / or in the sprue channel region can also be adjusted and regulated comparatively fine. If required, a temperature profile which varies depending on the location along the melt path or conveying path of the melt in the inlet channel 7 and / or the sprue channels 11a, 11b can also be predetermined and regulated.

Es versteht sich, dass beim vorliegenden Heißkanal-Angusssystem die Schmelze auch bereits im Verteilerblockaufbau 2 vor Erreichen der Angussblockeinheiten 3a bis 3d aktiv beheizt werden kann. Dazu dienen entsprechende weitere Heizeinrichtungen mit in den Längsverteilerblock 2a integrierten Heizelementen, z.B. in Fig. 3 gezeigten Heizdrähten 23, und in den Querverteilerblöcken 2b integrierten Heizelementen, z.B. in Fig. 2 gezeigten Heizdrähten 22.It is understood that in the present hot runner-sprue system, the melt can also be actively heated in the manifold block assembly 2 before reaching the sprue block units 3a to 3d. For this purpose, corresponding further heating devices are used in the longitudinal distribution block 2a integrated heating elements, eg in Fig. 3 shown heating wires 23, and integrated in the transverse distribution blocks 2b heating elements, eg in Fig. 2 shown heating wires 22.

Wie aus Fig. 1 ersichtlich, ist der in Fig. 2 für eine der Angussblockeinheiten 3a gezeigte Heizungsregelkreis Teil eines Gesamtheizungsregelkreises für alle aktiv beheizten Komponenten des Heißkanal-Angusssystems 1 mit einer übergeordneten zentralen Regeleinheit ZR, einzelnen Regeleinheiten 171 bis 174 und zugehörigen Stellsignalverstärkern bzw. Leistungsteilen 181 bis 184 für jede der Angussblockeinheiten 3a bis 3d, einer einzelnen Regeleinheit 175 mit zugehörigem Leistungsteil 185 zur geregelten Beheizung des Längsverteilerblocks 2a sowie zwei einzelnen Regeleinheiten 176, 177 mit jeweils zugehörigem Leistungsteil 186, 187 für die separate Beheizung jedes der beiden Querverteilerblöcke 2b. Jede der einzelnen Regeleinheiten 171 bis 177 entspricht in ihrer Funktionsweise der Regeleinheit 17 von Fig. 2 und empfängt von einer ihr jeweils zugeordneten und in der betreffenden Angussblockeinheit 3a bis 3d bzw. in den Querverteilerblöcken 2b und dem Längsverteilerblock 2a geeignet angeordneten Temperatursensorik entsprechende Temperatur-Istwertinformationen 20i. Weiter empfängt jede dieser Regeleinheiten 171 bis 177 zugehörige Sollwertinformationen 21i von der zentralen Regeleinheit ZR und gibt abhängig von diesen und den empfangenen, sensierten Temperaturinformationen 20i ein Stellsignal 19i ab, das den zugehörigen Leistungsteil 18i zur entsprechenden Heizleistungsabgabe an die Heizelemente in den Angussblockeinheiten 3a bis 3d, den Querverteilerblöcken 2b und dem Längsverteilerblock 2a veranlasst (i=1, ..., 7). Des Weiteren gibt jede einzelne Regeleinheit 17i ein zugehöriges Statussignal 23i an die zentrale Regeleinheit ZR ab, das eine Information über die Temperatur in dem zugehörigen Angusssystembereich beinhaltet, der von demjenigen Heizelement bzw. Heizkreis beheizt wird, das bzw. der von dieser Regeleinheit geregelt wird. Insbesondere umfasst dieses Statussignal 23i eine Information darüber, ob die von dem betreffenden Einzelregelkreis eingeregelte Temperatur innerhalb eines durch die Sollwertinformationen 21i vorgegebenen Solltemperaturfensters bzw. Solltemperaturbereichs liegt oder nicht.How out Fig. 1 can be seen, is the in Fig. 2 for one of the sprue block units 3a heating control loop part of an overall heating control loop for all actively heated components of the hot runner Angusssystems 1 with a higher-level central control unit ZR, individual control units 17 1 to 17 4 and associated control signal amplifiers or power units 18 1 to 18 4 for each of Angle block units 3 a to 3d, a single control unit 17 5 with associated power section 18 5 for the controlled heating of the longitudinal manifold block 2a and two individual control units 17 6 , 17 7 each with associated power section 18 6 , 18 7 for the separate heating of each of the two transverse manifolds 2b. Each of the individual control units 17 1 to 17 7 corresponds in their operation of the control unit 17 of Fig. 2 and receives from each of its associated and in the sprue block unit 3a to 3d or in the transverse manifold blocks 2b and the longitudinal manifold block 2a suitably arranged temperature sensor corresponding temperature actual value information 20 i . Further receives each of these control units 17 1 to 17 7 associated setpoint information 21 i from the central control unit ZR and outputs depending on these and the received, sensed temperature information 20 i a control signal 19 i from which the associated power unit 18 i to the corresponding heating power output to the heating elements in the gate block units 3a to 3d, the transverse manifold blocks 2b and the longitudinal manifold block 2a (i = 1, ..., 7). Furthermore, each individual control unit 17 i outputs an associated status signal 23 i to the central control unit ZR, which contains information about the temperature in the associated sprue system area, which is heated by the heating element or heating circuit that is controlled by this control unit becomes. In particular, this status signal 23 i comprises information about Whether the temperature regulated by the respective individual control loop is within a setpoint temperature window or setpoint temperature range specified by the setpoint information 21 i or not.

Somit können in sehr flexibler und variabler Weise durch die zentrale Regeleinheit ZR separat für jede der Angussblockeinheiten 3a bis 3d, die beiden Querverteilerblöcke 2b und den Längsverteilerblock 2a individuelle Solltemperaturen bzw. Solltemperaturbereiche als einzuhaltende Temperaturprofile vorgegeben werden, die dann von den individuell zugeordneten Einzelregelkreisen eingeregelt werden. Die zentrale Regeleinheit ZR kann je nach Systemauslegung und Anwendungsfall außer der erwähnten Heizungsregelung für das Heißkanal-Angusssystem weitere Regelungs-/Steuerungsaufgaben erfüllen. Im gezeigten Beispiel steht sie mit einer zentralen Maschinensteuerung MS der Druckgießmaschine in bidirektionaler Kommunikationsverbindung 24.Thus, in a very flexible and variable manner by the central control unit ZR separately for each of the sprue block units 3a to 3d, the two transverse manifolds 2b and the longitudinal manifold block 2a individual set temperatures or setpoint temperature ranges to be maintained as temperature profiles are set, which are then adjusted by the individually associated individual control loops , The central control unit ZR, depending on the system design and application, in addition to the mentioned heating control for the hot runner runner system fulfill further control tasks. In the example shown, it stands with a central machine control MS of the die casting machine in bidirectional communication connection 24.

Vorliegend wird dies unter anderem dazu genutzt, die zentrale Maschinensteuerung MS darüber zu informieren, ob die individuell für die verschiedenen beheizbaren Komponenten des Heißkanal-Angusssystems 1 individuell vorgegebenen Beheizungstemperaturprofile bzw. Solltemperaturbereiche erreicht sind bzw. eingehalten werden. Die zentrale Maschinensteuerung MS nutzt diese Information dazu, einen jeweiligen Formfüllvorgang und damit das Zuführen von Schmelze in das Heißkanal-Angusssystem 1 erst dann freizugeben bzw. zu starten, wenn sie von der zentralen Regeleinheit ZR darüber informiert worden ist, dass alle vorgegebenen Temperaturprofile bzw. Solltemperaturen für die einzelnen beheizbaren Komponenten des Heißkanal-Angusssystems 1, d.h. für die Angussblockeinheiten 3a bis 3d, die Querverteilerblöcke 2b und den Längsverteilerblock 2a, erreicht bzw. eingehalten sind. Dies vermeidet das Durchführen eines unvorteilhaften Formfüllvorgangs, bei dem die Temperatur in einer oder mehreren Komponenten des Heißkanal-Angusssystems 1, z.B. die Temperatur im Längsverteilerblock 2a oder einem der beiden Querverteilerblöcke 2b oder die Temperatur für den Zulaufkanal 7 und/oder die Temperatur für wenigstens einen der beiden Angusskanäle 11a, 11b in einer der Angussblockeinheiten 3a bis 3d, nicht im gewünschten, vorgegebenen Solltemperaturfenster liegt.In the present case, this is used, inter alia, to inform the central machine controller MS as to whether the heating temperature profiles or setpoint temperature ranges individually individually predetermined for the various heatable components of the hot runner gate system 1 have been achieved or maintained. The central machine controller MS uses this information to release or start a respective mold filling operation and thus the feeding of melt into the hot runner-gate system 1 only when it has been informed by the central control unit ZR that all predetermined temperature profiles or Set temperatures for the individual heatable components of the hot runner-Angusssystems 1, ie for the sprue block units 3a to 3d, the transverse manifold blocks 2b and the longitudinal manifold block 2a, achieved or respected. This avoids performing an unfavorable mold filling operation, wherein the temperature in one or more components of the hot runner gate system 1, eg the temperature in the longitudinal manifold block 2a or one of the two transverse distributor blocks 2b or the temperature for the inlet channel 7 and / or the temperature for at least one of the two sprue channels 11a, 11b in one of the sprue block units 3a to 3d does not lie in the desired, predetermined nominal temperature window.

Als weiterer Vorteil der Erfindung ist der modulare Aufbau des Heißkanal-Angusssystems 1 zu nennen, das sich in praktisch beliebigen Konfigurationen aus einer oder mehreren Angussblockeinheiten, die als eigenständig in eine jeweilige Gießform einsetzbare Baueinheiten ausgebildet sind, und einem vorgeschaltetem Verteilerblockaufbau realisieren lässt. Je nach Größe und Art der Gießform kann eine geeignete Anzahl von Angussblockeinheiten z.B. mit dem in den Fig. 2 und 3 gezeigten Aufbau über eine feste Formhälfte verteilt in entsprechende Ausnehmungen derselben eingesetzt werden. In Fig. 1 ist beispielhaft eine Konfiguration mit vier Angussblockeinheiten in rechteckförmiger Verteilung gezeigt. Der dazu passend gestaltete Verteilerblockaufbau mit einem Längsverteilerblock und zwei Querverteilerblöcken sorgt für die Verteilung der Schmelze auf die Angussblockeinheiten und dient gleichzeitig als gemeinsamer Träger bzw. Montagerahmen, an dem die Angussblockeinheiten angebracht sind. Alternativ kann jede andere Anzahl von derartigen eigenständigen Angussblockeinheiten in beliebiger anderer geometrischer Anordnung zum Einsatz kommen, mit geeignetem zugehörigem Verteilerblockaufbau, der seinerseits je nach Anwendungsfall aus einem einzelnen Verteilerblock oder aus mehreren aneinander angebrachten Verteilerblöcken bestehen kann.A further advantage of the invention is the modular design of the hot runner gate system 1, which can be realized in virtually any desired configuration from one or more runner block units, which are designed as units which can be used independently in a respective casting mold, and an upstream manifold block structure. Depending on the size and type of casting mold, a suitable number of sprue block units, for example with the in FIGS. 2 and 3 shown construction over a solid mold half distributed in corresponding recesses thereof are used. In Fig. 1 By way of example, a configuration with four sprue block units in a rectangular distribution is shown. The mating manifold construction with a longitudinal manifold block and two transverse manifold blocks distributes the melt to the runner block units and also serves as a common support or mounting frame to which the sprue block assemblies are attached. Alternatively, any other number of such stand-alone sprue block units may be used in any other geometric arrangement, with appropriate associated manifold structure, which in turn may consist of a single manifold block or a plurality of manifold blocks attached to one another depending on the application.

Fig. 4 zeigt das Angusssystem 1 in einer Einbaulage in einer Form mit einer festen Formhälfte 25 und einer beweglichen Formhälfte 27, die bei geschlossener Form, wie gezeigt, längs einer Trennebene 26 unter Bildung eines Formhohlraums 28 gegeneinander anliegen, wobei die Schnittebene von Fig. 4 derjenigen von Fig. 2 entspricht, d.h. zu erkennen ist in Fig. 4 die Angussblockeinheit 3a mit ihrem zugehörigen Querverteiler 2b. Wie in Fig. 4 für diese Angussblockeinheit 3a mit dem zugehörigen Querverteilerblock 2b zu erkennen, ist das Angusssystem 1 mit seinen vier Angussblockeinheiten und seinem Verteilerblockaufbau in entsprechende Ausnehmungen 29 der festen Formhälfte 25 eingesetzt. Dabei liegen die Angussmündungen 12a, 12b einem Anschnittkanal 30 gegenüber, der mit kurzer Länge direkt in den Formhohlraum 28 führt, von dem in der Schnittebene der Fig. 4 nur ein kleiner Ausschnitt zu erkennen ist. Beim Gießvorgang gelangt die zugeführte Schmelze vom Läuferkanal 6 des Querverteilerblocks 2b in den Zulaufkanal 7 der jeweiligen Angussblockeinheit, verteilt sich dann in die Angusskanäle 11a, 11 b und wird über die Angussmündungen 12a, 12b und die Anschnittkanäle 30 in den Formhohlraum 28 gedrückt. Dabei wird sie auf ihrem Förderweg bis zu ihrem Austritt aus den Angussmündungen 12a, 12b aktiv beheizt. Charakteristischerweise kann die Beheizung in der jeweiligen Angussblockeinheit, wie oben erläutert, durch die beiden separat steuerbaren bzw. regelbaren Heizeinrichtungen mit je einem oder mehreren Heizkreisen 13a, 13b bzw. 14a, 14b zur Beheizung des Zulaufkanals 7 bzw. der Angusskanäle 11a, 11b sehr flexibel und feinfühlig erfolgen, insbesondere kann hierbei ein gewünschtes Temperaturprofil für den Förderweg der Schmelze in der jeweiligen Angussblockeinheit vorgegeben und eingehalten werden. Somit lässt sich die Schmelze bis direkt zu ihrem Eintritt in den Formhohlraum 28 über die Anschnitte 30 in vorgebbarer Weise gesteuert oder geregelt aktiv beheizen. Fig. 4 shows the gating system 1 in an installed position in a mold with a fixed mold half 25 and a movable mold half 27 which abut each other in closed mold, as shown, along a parting plane 26 to form a mold cavity 28, the sectional plane of Fig. 4 those of Fig. 2 corresponds, ie it can be recognized in Fig. 4 the sprue block unit 3a with its associated transverse distributor 2 B. As in Fig. 4 For this sprue block unit 3a with the associated transverse distributor block 2b, the sprue system 1 with its four sprue block units and its distributor block structure is inserted into corresponding recesses 29 of the fixed mold half 25. In this case, the gate openings 12a, 12b are opposite a gate channel 30, which leads with a short length directly into the mold cavity 28, from which in the sectional plane of the Fig. 4 only a small section can be seen. During the casting process, the supplied melt passes from the rotor channel 6 of the transverse distributor block 2b into the inlet channel 7 of the respective sprue block unit, then distributes itself into the sprue channels 11a, 11b and is forced into the mold cavity 28 via the gate openings 12a, 12b and the gate channels 30. In this case, it is actively heated on its conveying path until it leaves the sprue openings 12a, 12b. Characteristically, the heating in the respective sprue block unit, as explained above, by the two separately controllable or controllable heaters with one or more heating circuits 13a, 13b and 14a, 14b for heating the inlet channel 7 and the sprue channels 11a, 11b very flexible and sensitively, in particular a desired temperature profile for the conveying path of the melt in the respective sprue block unit can be predetermined and maintained. Thus, the melt can be up to its entry into the mold cavity 28 via the gates 30 in a predeterminable manner controlled or controlled active heating.

Erfindungsgemäß kann ein Heißkanal-Angusssystem mit einem ganzen Satz verschiedenartiger Konfigurationen von Angussblockeinheiten mit jeweils zugehörigem Verteilerblockaufbau zum Einsatz in verschiedenen Gießformen bereitgestellt werden. Da zudem die jeweilige Angussblockeinheit als eigenständig in eine jeweilige Gießform einsetzbare Baueinheit ausgebildet und folglich kein unlösbarer Bestandteil einer festen Formhälfte bzw. eines an dieser unlösbar angebrachten Angussblocks ist, kann die jeweilige Angussblockeinheit oder ein ganzes Heißkanal-Angusssystem mit einer oder mehreren Angussblockeinheiten und zugehörigem Verteilerblockaufbau bei Bedarf für verschiedene Gießformen benutzt werden, d.h. die Angussblockeinheit bzw. das Heißkanal-Angusssystem wird, nachdem sie bzw. es zunächst in einer ersten Gießform zum Einsatz kam, von dieser abgenommen und kann anschließend oder später in eine andere Gießform eingesetzt werden.In accordance with the present invention, a hot runner runner system having a whole set of different configurations of runner block units, each with associated manifold block construction, may be provided for use in various molds. In addition, since the respective sprue block unit is designed as an independent unit which can be used in a respective casting mold and consequently is not an insoluble component of a fixed mold half or of a sprue block mounted inseparably thereon, the respective sprue block unit or an entire hot runner gate system with one or more sprue block units and associated manifold block construction are used for different molds when needed, ie the sprue block unit or the hot runner gate system, after it was first used in a first mold, removed therefrom and can subsequently or later in another mold can be used.

Beispielhaft zeigt Fig. 5 eine Konfiguration eines erfindungsgemäßen Heißkanal-Angusssystems 1', das drei Angussblockeinheiten 3e, 3f, 3g der in den Fig. 2 und 3 gezeigten Bauart in einer sternförmigen, dreieckigen Anordnung mit einem Verteilerblockaufbau beinhaltet, der durch einen einzelnen, dreizackigen Verteilerblock 2' mit eintrittsseitigem, zentralem Angussmundstück 4' gebildet ist. In jedem der drei Arme dieses Verteilerblocks 2' verläuft in nicht gezeigter Weise je ein Läuferkanal vom eintrittsseitigen Angussmundstück 4' bis zum Zulaufkanaleintritt der jeweiligen Angussblockeinheit 3e, 3f, 3g. Dem Verteilerblock 2' und den Angussblockeinheiten 3e, 3f, 3g sind in gleicher Weise, wie oben zum Ausführungsbeispiel der Fig. 1 bis 4 beschrieben, separat regelbare Heizelemente mit zugehörigen einzelnen Heizungsregelkreisen und einer zugeordneten zentralen Regeleinheit zugeordnet, was hier keiner wiederholten Beschreibung bedarf. Im übrigen entspricht das Heißkanal-Angusssystem 1' von Fig. 5 in seiner Wirkungsweise und seinen Vorteilen demjenigen der Fig. 1 bis 4, worauf verwiesen werden kann.Exemplary shows Fig. 5 a configuration of a hot runner-Angusssystems 1 'according to the invention, the three sprue block units 3e, 3f, 3g of the in FIGS. 2 and 3 shown in a star-shaped, triangular arrangement with a manifold block construction, which is formed by a single, three-pronged manifold block 2 'with inlet-side, central Angusmundstück 4'. In each of the three arms of this manifold block 2 'runs in a manner not shown depending on a rotor channel from the inlet side Angusmundstück 4' to Zulaufkanaleintritt the respective sprue block unit 3e, 3f, 3g. The distributor block 2 'and the sprue block units 3e, 3f, 3g are in the same manner as above for the embodiment of Fig. 1 to 4 described separately associated heating elements associated with individual heating control circuits and an associated central control unit, which here no repeated description needs. Otherwise, the hot runner gate system corresponds to 1 'of Fig. 5 in its mode of action and its advantages to that of the Fig. 1 to 4 , to which reference can be made.

Wie gesagt, eignet sich das erfindungsgemäße modulare Heißkanal-Angusssystem z.B. für Warmkammer-Druckgießmaschinen, es ist aber in gleicher Weise auch für Druckgießmaschinen vom Kaltkammertyp verwendbar.As stated, the modular hot runner gate system according to the invention is suitable e.g. for hot chamber die casting machines, but it is equally usable for die casting machines of the cold chamber type.

Claims (6)

  1. A sprue block unit for a hot-runner feed system of a pressure die-casting machine, comprising
    - a block body (8) in which there is incorporated at least one melt-conveying channel (7, 11 a, 11 b), the channel including a supply channel region (7) and a sprue channel region (11 a, 11 b) leading therefrom and running out of the block body by way of a sprue orifice (12a, 12b) close to the gate, and
    - a heating system (13a to 14b), integrated into the block body, for the at least one melt-conveying channel,
    characterized in that
    - the sprue block unit is designed as a structural unit (3a to 3d) which can be inserted independently into a respective casting mould such that the at least one melt-conveying channel with its supply channel region (7) joins to a corresponding runner channel (6) of an upstream manifold block structure (2), and
    - the heating system includes a first heating device (13a, 13b) for heating the supply channel region and a second heating device (14a, 14b) for heating the sprue channel region.
  2. The sprue block unit according to claim 1, further characterized in that the second heating device is controllable or regulatable separate from the first heating device.
  3. A hot-runner feed system for a pressure die-casting machine, wherein the hot-runner feed system includes at least one sprue block unit (3a to 3d) according to claim 1 or 2 and further at least one of the following elements:
    - heating means (13a to 14b, 17) for the sprue block unit, wherein the heating means include a heating control circuit for controlled heating of the sprue block unit using at least two individually controlled heating elements (13a, 13b, 14a, 14b) for controlling a predeterminable temperature profile for the sprue block unit (3a to 3d), or a first heating device (13a, 13b) for heating a supply channel (7) of the sprue block unit and a second heating device (14a, 14b) controllable or regulatable separate from the first heating device for heating a plurality of sprue channels (11 a, 11 b) of the sprue block unit leading from the supply channel, and/or
    - a manifold block structure (2) on which the at least one sprue block unit is mounted on a sprue side and which has one or more runner channels (5, 6) for feeding the melt into the melt-conveying channel or channels of the one or more sprue block units.
  4. The hot-runner feed system according to claim 3, further characterized in that the manifold block structure has one or more interconnected, heatable manifold block elements (2a, 2b).
  5. The hot-runner feed system according to claim 3 or 4, further characterized by a feed system temperature sensor system und a control device, configured to receive temperature information from the feed system temperature sensor system and to control a mould-filling operation of the pressure die-casting machine dependent on this information.
  6. A control device for a pressure die-casting machine, wherein the pressure die-casting machine comprises a hot-runner feed system (1) according to claim 3 or 4 with associated feed system temperature sensor system,
    characterized in that
    the control device is configured to receive temperature information from the feed system temperature sensor system and to control a mould-filling operation of the pressure die-casting machine dependent on this information, wherein the device enables a mould-filling operation of the pressure die-casting machine only when one or more of the temperatures in the hot-runner feed system detected by the feed system temperature sensor system lie within a respectively predetermined set-point temperature range.
EP10194415.5A 2007-05-24 2007-05-24 Sprue block unit, sprue system and control unit for a diecast machine Active EP2295172B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL10194415T PL2295172T3 (en) 2007-05-24 2007-05-24 Sprue block unit, sprue system and control unit for a diecast machine
EP10194415.5A EP2295172B1 (en) 2007-05-24 2007-05-24 Sprue block unit, sprue system and control unit for a diecast machine

Applications Claiming Priority (2)

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EP10194415.5A EP2295172B1 (en) 2007-05-24 2007-05-24 Sprue block unit, sprue system and control unit for a diecast machine
EP07010321A EP1997571B1 (en) 2007-05-24 2007-05-24 Sprue block unit, sprue system and control unit for a diecast machine

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EP07010321.3 Division 2007-05-24

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CN (1) CN101310894B (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10618108B2 (en) 2015-06-05 2020-04-14 Oskar Frech Gmbh + Co. Kg Hot runner feed system for a diecasting mould

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE502007006186D1 (en) * 2007-05-24 2011-02-17 Frech Oskar Gmbh & Co Kg Sprue block unit, gating system and control device for a die casting machine
DE102012112370A1 (en) * 2012-12-17 2014-06-18 Krones Ag Device for heating plastic preforms
DE102015100861B4 (en) * 2015-01-21 2018-07-19 TransMIT Gesellschaft für Technologietransfer mbH Hot runner for a die casting apparatus and method of operation therefor
DE102015210403A1 (en) 2015-06-05 2016-12-08 Oskar Frech Gmbh + Co. Kg Angular system for a die-casting mold
DE102015224414A1 (en) * 2015-12-07 2017-06-08 Volkswagen Aktiengesellschaft cast device
CN106216635A (en) * 2016-08-09 2016-12-14 上海普锐赛司实业有限公司 A kind of die-casting material Temperature-controlled appliance and temperature-controlled process
CN106735075B (en) * 2016-12-30 2019-01-15 宁波海天金属成型设备有限公司 A kind of die casting machine intelligent folding mould control method and control system
CN108568497A (en) * 2017-03-09 2018-09-25 四川省宜宾普什驱动有限责任公司 A kind of special hot-runner device of high-speed railway rail fastening
CN110076316A (en) * 2019-05-26 2019-08-02 深圳市宝田精工塑胶模具有限公司 Forming method of zinc alloy product and zinc alloy forming die
CN113600788B (en) * 2021-07-14 2022-12-27 江西省铭鑫荣智能科技有限公司 Die-casting mechanical demolding and separating equipment for manufacturing precise structural part and implementation method
CN114309535B (en) * 2021-12-30 2024-01-02 宁波三诚压铸模具有限公司 Direct current inductance box forming die

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005271014A (en) * 2004-03-24 2005-10-06 Matsushita Electric Ind Co Ltd Multi-cavity metal injection molding die using hot runner

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63137561A (en) 1986-11-28 1988-06-09 Fuso Light Alloys Co Ltd Hot chamber die casting machine
US5542835A (en) * 1992-03-06 1996-08-06 Teetotum Limited Leak detector for an injection moulding machine
CA2073710C (en) * 1992-07-13 2000-03-28 Jobst Ulrich Gellert Injection molding nozzle with removable forward member
JP3016722B2 (en) * 1995-12-06 2000-03-06 株式会社日本製鋼所 Metal injection molding method using mold and metal injection mold
CA2233433C (en) 1998-03-27 2007-07-31 Mold-Masters Limited Injection molding cylindrical manifold insert and method
JP2000006221A (en) * 1998-06-29 2000-01-11 Sekisui Chem Co Ltd Injection molding device
JP2001047212A (en) * 1999-08-03 2001-02-20 Juo:Kk Injection forming apparatus
WO2001055473A1 (en) 2000-01-25 2001-08-02 Boston Scientific Limited Manufacturing medical devices by vapor deposition
US6405785B1 (en) * 2000-01-28 2002-06-18 Mold-Masters Limited Injection molding component with heating element and method of making
JP2001212660A (en) * 2000-01-31 2001-08-07 Matsushita Electric Ind Co Ltd Metal forming mould device
JP3590315B2 (en) * 2000-02-03 2004-11-17 株式会社日本製鋼所 Method for controlling temperature of mold for molding machine and mold apparatus for molding machine
JP2002103022A (en) * 2000-09-29 2002-04-09 Ahresty Corp Pouring apparatus for casting
DE50012864D1 (en) * 2000-10-31 2006-07-06 Frech Oskar Gmbh & Co Device for producing metal die-cast parts, in particular of non-ferrous metals
JP2002160041A (en) * 2000-11-24 2002-06-04 Sanyo Electric Co Ltd Metallic mold for thin metal molding and manufacturing method for thin metal molding using the same
AU2930502A (en) 2001-08-23 2003-02-27 Commonwealth Scientific And Industrial Research Organisation Improved magnesium alloy castings
JP2004050199A (en) * 2002-07-17 2004-02-19 Matsushita Electric Ind Co Ltd Die device for metal formation
JP2004090063A (en) * 2002-09-02 2004-03-25 Honda Motor Co Ltd Metal mold for casting
JP2004174991A (en) * 2002-11-28 2004-06-24 Matsushita Electric Ind Co Ltd Hot runner die for optical disk double picking molding
CA2453170C (en) * 2002-12-20 2012-02-21 Mold-Masters Limited Lateral gating injection molding apparatus
US7810549B2 (en) * 2007-01-05 2010-10-12 Ford Global Technologies, Llc Adaptive and universal hot runner manifold for die casting
DE502007006186D1 (en) * 2007-05-24 2011-02-17 Frech Oskar Gmbh & Co Kg Sprue block unit, gating system and control device for a die casting machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005271014A (en) * 2004-03-24 2005-10-06 Matsushita Electric Ind Co Ltd Multi-cavity metal injection molding die using hot runner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10618108B2 (en) 2015-06-05 2020-04-14 Oskar Frech Gmbh + Co. Kg Hot runner feed system for a diecasting mould

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PL1997571T3 (en) 2011-05-31
US20120145352A1 (en) 2012-06-14
EP1997571B1 (en) 2011-01-05
ATE494088T1 (en) 2011-01-15
CN101310894B (en) 2014-01-29
JP5657857B2 (en) 2015-01-21
US8302660B2 (en) 2012-11-06
EP2295172A1 (en) 2011-03-16
EP1997571A1 (en) 2008-12-03
DE502007006186D1 (en) 2011-02-17
US8104529B2 (en) 2012-01-31
PL2295172T3 (en) 2015-07-31
CN101310894A (en) 2008-11-26
HK1151259A1 (en) 2012-01-27
HK1123253A1 (en) 2009-06-12
US20080289791A1 (en) 2008-11-27
JP2008290153A (en) 2008-12-04

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