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EP2065100B1 - Dispositif de pulvérisation d'agent séparateur pour une machine de coulée - Google Patents

Dispositif de pulvérisation d'agent séparateur pour une machine de coulée Download PDF

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Publication number
EP2065100B1
EP2065100B1 EP08020282A EP08020282A EP2065100B1 EP 2065100 B1 EP2065100 B1 EP 2065100B1 EP 08020282 A EP08020282 A EP 08020282A EP 08020282 A EP08020282 A EP 08020282A EP 2065100 B1 EP2065100 B1 EP 2065100B1
Authority
EP
European Patent Office
Prior art keywords
release agent
spray
chamber
dosing
nozzle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP08020282A
Other languages
German (de)
English (en)
Other versions
EP2065100A1 (fr
Inventor
Norbert Erhard
Hubert Pschenitschni
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oskar Frech GmbH and Co KG filed Critical Oskar Frech GmbH and Co KG
Priority to DE202008017846U priority Critical patent/DE202008017846U1/de
Priority to PL08020282T priority patent/PL2065100T3/pl
Priority to EP08020282A priority patent/EP2065100B1/fr
Publication of EP2065100A1 publication Critical patent/EP2065100A1/fr
Application granted granted Critical
Publication of EP2065100B1 publication Critical patent/EP2065100B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B22D17/2007—Methods or apparatus for cleaning or lubricating moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
    • B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
    • B05B12/088—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve the sensing element being a flexible member, e.g. membrane, diaphragm, bellows
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump

Definitions

  • the invention relates to a release agent spray device for a casting machine according to the preamble of claim 1.
  • release agent spray devices are used, for example, as release agent spray systems for the automated spraying of casting molds in die casting machines.
  • release agent spray systems for the automated spraying of casting molds in die casting machines.
  • the amount of release agent discharged per spray depends, among other things, on the settable stroke of the control piston and its opening time during which it releases the release agent supply line. Because of the additional dependence on other parameters, such as release agent pressure, geometry and in particular cross section of the spray nozzle and pressure and duration of the spray nozzle supplied and the release agent sucking spray air pulse, sprayed per spray and spray release agent amount is not well known in these conventional spray systems and will not exactly given.
  • the patent US 3,888,420 discloses a spray device for spray discharge of a lubricant or similar fluid with a spray nozzle and discharge means for controlled discharge of the lubricant from the spray nozzle, the discharge means comprising a dosing unit associated with the spray nozzle and pre-defining a quantity of lubricant to be dispensed through the spray nozzle in a pending spray ,
  • a horizontal bore acts as a metering chamber, which is in communication with a lubricant supply channel perpendicular thereto, wherein a horizontally operable metering piston for effecting the spray into the Dosierhuntbohrung is movable into it.
  • a nozzle connection channel between the Dosierhuntbohrung and the spray nozzle is a check valve.
  • the publication EP 0 627 268 A2 discloses a liquid spray device especially for spraying liquid onto a rotating one Cylinder of a printing press or on a moving substrate in a printing press, wherein the spraying device comprises a spray nozzle and discharge means for the controlled discharge of the liquid from the spray nozzle.
  • the dispensing means include a metering unit associated with the spray nozzle which pre-defines a quantity of liquid to be dispensed through the spray nozzle in an impending spray and provides it separated from a liquid supply for discharge in the impending spray.
  • the metering unit has a metering chamber which is connected in each case by means of a check valve via a liquid supply line with a liquid source and a nozzle connection line with the spray nozzle, and a metering chamber limiting metering piston, which is arranged to change the volume of the metering chamber movable.
  • the metering chamber and the metering piston are formed by a separate piston pump, and located in the nozzle connection line between the check valve and spray nozzle a controllable metering valve, wherein diverted between the metering valve and spray nozzle of the nozzle connection line a pressure relief line with associated, controllable pressure relief valve.
  • the controllable valves are controlled by an associated control unit with the aim of preventing dripping at the end of each spray.
  • the spray characteristics and especially the sprayed release agent amount should not be affected by any switching delays system components involved, such as shut-off valves and the like.
  • the sprayed amount of release agent should be kept to a minimum.
  • the invention is based on the technical problem of providing a release agent spray device of the type mentioned, the allows a reliable discharge of a predetermined amount of release agent in a particular spray over one or more spray nozzles.
  • the invention solves this problem by providing a release agent spray device having the features of claim 1.
  • the discharge means comprise at least one metering unit associated with at least one spray nozzle and defining an amount of release agent to be dispensed in a pending spray through the at least one associated spray nozzle and a release agent supply separates for discharging in the upcoming spray provides.
  • the respective dosing unit comprises a separating agent space which is shut-off connected via a release agent supply line with a release agent source and a nozzle connection line with the at least one associated spray nozzle, and a movable and thereby the release agent space with variable volume limiting dosing.
  • the amount of release agent to be discharged in the pending spray over the one or more associated spray nozzles can be stored in the release agent space, from where it can then be discharged in the upcoming spray.
  • the dosing is together with at least one of the one or more associated with him spray nozzles in a common housing body, so that the dosing with the spray nozzle in question can be installed as needed as a unit.
  • a check valve is provided in the release agent supply line, or it is a multi-way valve for selectively shutting off the connection of the release agent space with the spray nozzle and releasing the connection of the release agent space with the release agent source and releasing the connection of the release agent space with the spray nozzle and shutting off the connection of the release agent space provided with the release agent source.
  • This may in particular be a media-controlled and thus self-controlling multiway valve, which makes additional control devices superfluous.
  • the Check valve in the release agent supply line allows the desired supply of release agent in the release agent space before the next spray and prevents automatically that release agent from the release agent space in the release agent supply line or the release agent source comes back.
  • release agent spraying device With this release agent spraying device according to the invention, comparatively small quantities of release agent can also be precisely metered and discharged per spray, even with low spraying times and / or low release agent pressure and / or relatively small nozzle cross section.
  • the amount of release agent defined by the pending dosing dosage unit is provided separately from a release agent supply, such as a supply of release agent from a release agent source via a release agent supply line, and may be discharged in the upcoming spray without being of varying and / or uncertainty
  • System parameters is influenced, such as release agent pressure, nozzle geometry and pressure curve and duration of the spray nozzle respectively supplied spray air.
  • the exact discharge of the desired amount of release agent per spray is not affected by any switching delays or other not more accurately known or reproducible performance characteristics of participating system components, such as valves, control pistons and the like, even at very short spraying times.
  • a check valve in the nozzle connection line This allows the discharge of the amount of release agent stored there via the one or more associated spray nozzles in the respective spray and prevents a sucking back of release agent from the nozzle connection line into the release agent space.
  • the metering unit has a control medium space connected to a control medium source via which the metering element can be controlled.
  • the control medium source may comprise means for controlled pressurization of the metering element with at least two different control pressures, wherein a first control pressure controls the metering for metering release agent in the release agent and a different from the first second control pressure the metering for discharging the metered release agent from the release agent space controls.
  • the discharge means are adapted to variably set the release agent to be discharged in the next spray and / or different dosing units.
  • different amounts of release agent can be sprayed in successive sprays on the same spray nozzle or different amounts of release agent in parallel sprays via spray nozzles, which are assigned to different metering units.
  • an adjustable movement limiter for the variable adjustment of the amount of release agent metered into the release agent space or discharged therefrom is assigned to the metering element of the respective metering unit.
  • the release agent spray device shown with its presently interesting components is suitable, for example, for the automated spraying of mold surfaces in die casting machines, for example for metal diecasting, with a conventional release agent or separation medium.
  • the release agent spray device includes one or more spray nozzles as needed, of which in the views of Fig. 1 and 2 a spray nozzle 1 is shown representatively.
  • the respective spray nozzle 1 is mounted on a spray side 2a of a spray block or housing body 2, in which also one or more metering units are provided, of which in the view of Fig. 1 and 2 one of the spray nozzle 1 associated dosing unit 3 is shown representatively.
  • the dosing unit 3 shown includes a hollow chamber 4 provided in the housing body 2 which is divided into a separating agent space 6 and a control medium space 7 by a dosing piston 5 which acts as a dosing element and is arranged to be axially movable.
  • the control medium space 7 is connected by a control medium line 8 to a conventional control medium source, not shown.
  • the control medium chamber 7 can optionally be pressure-loaded or depressurized.
  • the release agent space 6 is connected by a release agent supply line 9 with a conventional, not shown release agent source.
  • a check valve 10 is arranged so that release agent can be conveyed from the release agent source in the release agent space 6, a release agent reflux from the release agent space 6 to the release agent source is blocked.
  • the spray nozzle 1 is connected via a nozzle connection line 11 with the release agent space 6, wherein in the nozzle connection line 11, a check valve 12 is arranged such that release agent can be conveyed from the release agent space 6 to the spray nozzle 1, however, a backflow into the release agent space 6 is blocked.
  • a spray carrier medium line 13 Via a spray carrier medium line 13, the spray nozzle 1 is connected to a conventional, not shown Sprühamediumquelle to the spray nozzle 1, a spray carrier medium, such as. Compressed air to be able to perform, with which the spraying of the parallel supplied liquid release agent is effected.
  • suitable geometric design of the spray nozzle 1 with associated nozzle channels 1 a results in a conventional manner mixing of the spray carrier medium, e.g. Air, with the release agent and the desired spray effect.
  • a piston stem 15 departing from the metering piston 5 is sealed in a bore 16, which is introduced into the housing body 2 from the spray side 2 a.
  • an adjusting screw 17 is screwed in from the outside, which acts with a stop 17a as a variably adjustable Kolbenhubbegrenzer.
  • a coil spring 18 On the opposite side of the metering piston 5 is supported on a coil spring 18, which in turn is supported on a bottom surface 19 of the release agent space 6 and secured by a piston stem stub 20 against lateral displacement.
  • one dosing unit can each be assigned individually to a spray nozzle, ie in this case only one spray nozzle is connected to the release agent space of the respective dosing unit.
  • several spray nozzles may be coupled in parallel to a dosing unit.
  • a dosing unit and its associated spray nozzle can also be integrated into a common spray block module body, as shown, to modularly build an entire spray system from a plurality of spray block modules, or alternatively all or at least several Dosing units integrated with their coupled spray nozzles in a spray block.
  • these can be constructed the same or different, for example, several metering units can be provided with the same or different cross-section of the release agent space, each of which is assigned an individually definable number of spray nozzles.
  • the discharge means used in the Trennffensprühvoroplasty invention comprise, in addition to the above-mentioned components, in particular the metering unit (s) and the associated medium lines or medium channels, depending on the application, further system components, which are conventional and therefore not shown and explained in detail here.
  • the discharge means comprise a suitable spray control unit for controlling the device components involved. It is understood that a suitable control algorithm is implemented in this control unit in order to carry out the release agent spraying method according to the invention, as described in more detail below.
  • the release agent spray device By means of its special discharge means for the controlled spray discharge of the release agent from the respective spray nozzle 1 using the characteristic dosing unit (s) 3, the release agent spray device according to the invention enables the discharge of a very precisely determinable amount of release agent per spray stroke, before a respective spray burst Release agent is sucked from the metering piston 5 in the release agent space 6, which is then pressed at the next spray from the metering piston 5 to the one or more coupled spray nozzles 1 and discharged or sprayed on this.
  • Fig. 1 the operating state when sucking release agent.
  • the control fluid chamber 7 is depressurized by discharging control medium via the control medium line 8, so that the metering piston 5 due to the pressure force of the coil spring 18 and / or a negative pressure in the control fluid chamber 7 in Fig. 1
  • release agent flows from the release agent source into the release agent space 6 via the release agent supply line 9 and the opening non-return valve 10, the check valve 12 remaining closed in the nozzle connection line 11.
  • the sucked release agent quantity is thus accurately determined by the intake stroke of the metering 5.
  • This can be defined by a stop 5a provided on the metering piston 5 at an in Fig. 1 Upper boundary surface of the control medium space 7 comes to rest.
  • a limitation of the intake stroke of the metering 5 may be provided, ie in the corresponding end position of the metering 5, the pressure force of the coil spring 18 has up to the value of a predetermined remaining pressure force of the control medium on the metering 5 removed.
  • the subsequent spraying process can be initiated, as in Fig. 2 is illustrated.
  • the control medium pressure in the control medium chamber 7 is increased sufficiently, so that the metering piston 5 in the direction of reduction of the release agent space 6, ie in Fig. 2 down, against the force of the compression spring 18 moves.
  • the check valve 12 opens in the nozzle connection line 11, so that release agent is conveyed from the release agent chamber 6 via the nozzle connection line 11 to the spray nozzle 1, while the check valve 10 closes in the release agent supply line 9 and prevents a release agent backflow to the release agent source.
  • the movement of the metering piston 5 is in the Fig. 1 and 2 symbolized by a movement arrow D, the release agent flow through a respective flow arrow T.
  • the spray nozzle 1 sprays the supplied release agent in a spray 21, wherein the spray jet 21 a desired characteristic by appropriate design of the spray nozzle 1 and supply of the Release agent and the spray carrier medium can be adjusted, eg in geometry and direction, also variable if required.
  • the spray nozzle 1 can be designed for this purpose in a conventional manner to internal or external mixing principles.
  • the end of the discharge movement of the metering piston 5 in the respective spray is defined by striking the Kolbenhubbegrenzers 17 a of the screw 17 on the spray side 2 a of the housing body 2. This end position is in Fig. 2 shown.
  • this end position of the metering piston 5 can be variably adjusted.
  • any other piston stroke limiting measure known per se to the person skilled in the art can be provided.
  • the maximum or compressed state of the helical compression spring 18 that can be determined by the discharge control pressure of the control medium can define such an alternative end stop or another conventional, unchanging one in the release agent space 6 or variably internally or remotely controlled externally adjustable end stop.
  • very small quantities of release agent can thus be precisely determined for each individual spray, stored in the release agent space 6 and sprayed in the spray concerned.
  • the amount of release agent to be discharged in the respective spray can be fixed variably or as explained, depending on the system design.
  • the amount of release agent can also be variably set for successive sprays of the same spray nozzle, and / or different amounts of release agent can be specified for different spray nozzles.
  • the discharge of the defined predetermined amount of release agent in the respective spray is separated from the release agent supply from the release agent source, i. decoupled.
  • the 3 and 4 illustrate a variant of the in the Fig. 1 and 2 shown Trennffensprühvorraum, wherein identical or functionally equivalent components are provided with the same reference numerals and in this respect to the above explanations of Trennstoffsprühvortechnisch the Fig. 1 and 2 can be referenced.
  • the release agent spray device according to the 3 and 4 is different from the one of Fig. 1 and 2 in a modified metering unit 3 '. In this dosing unit 3 ', an annular metering membrane 5' assumes the function of the metering piston 5 in the release agent spraying device Fig.
  • the Dosiermembran 5 is with its outer edge on the housing body 2 fixed in a fluid-tight manner, while it is fixed in its central region on an axially movable diaphragm control pin 15 '.
  • the membrane 5 ' has a central opening through which the membrane control pin 15' extends.
  • the membrane control pin 15 ' is a membrane holding part 22 with an annular nip, in which the membrane 5' is held fluid-tight with its central opening edge.
  • the diaphragm control pin 15 ' has the respective components as shown and functions such as the piston shaft 15 in the embodiment of FIGS Fig. 1 and 2 , so that in turn to the corresponding above explanations to the Fig. 1 and 2 can be referenced.
  • the hollow chamber 4 is formed by an inner portion of smaller diameter of a two-stage bore in the housing body 2, wherein the inner part passes to form an annular shoulder in an outer part of larger diameter.
  • the membrane 5 ' is placed with its outer edge on the annular shoulder and is clamped there fluid-tight by a closure piece 23 which is fluid-tightly inserted into the outer bore part.
  • the closure piece 23 simultaneously forms the guide for the membrane control pin by extending through a central bore of the closure piece 23, wherein an annular seal for sealing the annular gap between diaphragm control pin 15 'and closure piece 23 is provided.
  • the Dosiermembran 5 'held clamped in such a way acts according to the metering piston 5 in the embodiment of Fig. 1 and 2 as a separation element for dividing the hollow chamber 4 into the separating agent space 6 and the control medium space 7.
  • the axial movement of the membrane holding bolt 15 ' moves the dosing membrane 5' between the in Fig. 3 shown, folded membrane position with a larger volume of the release agent space 6 and in Fig. 4 shown, bulging Membrane position with a smaller volume of the release agent space 6.
  • the movement of membrane 5 'and diaphragm control pin 15' between these two end positions takes place as in the embodiment of Fig.
  • Fig. 3 thus corresponds analogously to Fig. 1 the operating state during the suction of release agent, while Fig. 4 analogous to Fig. 2 represents the spraying process.
  • Fig. 4 analogous to Fig. 2 represents the spraying process.
  • the functionality is completely identical to that of the example of Fig. 1 and 2 Reference may be made to their above explanations.
  • This also applies to the design and function of the means of setting the two in the 3 and 4 and shown for the variable setting of discharged in each spray release agent amount by adjusting the screw 17, which acts here with its stop 17a as a variably adjustable stroke limiter for the diaphragm control pin 15 '.
  • FIGS. 5 and 6 illustrate another variant of the in the Figures 1 and 2 Trennstoffsprühvorraum shown, again identical or functionally equivalent components are provided with the same reference numerals and in this respect to the above explanations of Trennstoffsprühvortechnisch the Figures 1 and 2 can be referenced.
  • the release agent spray device according to the FIGS. 5 and 6 is different from the one of Figures 1 and 2 in that instead of the check valves a media-controlled 3/2-way valve 24 is provided, to which the separating agent supply line 9 and the nozzle connection line 11 are suitably coupled, as shown.
  • the coupling is chosen so that the valve 24 when in FIG. 5 shown suction forming a valve passage 25 for the release agent supply line 9, so that via the release agent supply line 9 release agent can be sucked into the release agent space 6, and that it simultaneously breaks the connection from the release agent space 6 to the nozzle connection line 11.
  • the valve 24 separates the release agent supply line 9 and thereby blocks the connection between the release agent space 6 and release agent source, while it provides a valve passage 26 for the nozzle connection 11, so that release agent from the release agent chamber 6 via the nozzle connection line 11 to the spray nozzle 1 and promoted from this is sprayed.
  • valve 24 between its two shown positions in the intake of FIG. 5 on the one hand and in spray mode of FIG. 6
  • media-controlled by the release agent itself including the two valve branch lines 24a, 24b are provided.
  • the intake operation creates a negative pressure in the branch line 24b relative to the release agent supply line 9 and the associated branch line 24a, whereby the valve 24 in its in FIG. 5 shown switching position is maintained, while in the spraying operation, a release agent overpressure in the branch line 24b is present, through which the valve 24 in its in FIG. 6 shown switching position is held.
  • the invention makes it possible to retrofit conventional release agent spray devices quite simply, since the spray nozzles conventionally used can be used unchanged and only the respective metering unit assigned to a single or a group of several spray nozzles and an activation thereof must be additionally provided. All other conventional system components such as release agent source, control medium source, and spray medium source, as well as the associated control components, can be maintained virtually unchanged.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Nozzles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Claims (7)

  1. Dispositif de pulvérisation d'agent séparateur pour une machine de coulée, comprenant
    - une ou plusieurs buses de pulvérisation (1),
    - des moyens de distribution pour la distribution commandée d'agent séparateur depuis les différentes buses de pulvérisation, qui comportent au moins une unité de dosage (3), qui est associée à au moins une buse de pulvérisation (1), qui détermine à l'avance une quantité d'agent séparateur à distribuer dans un prochain jet de pulvérisation, à travers la au moins une buse de pulvérisation associée et qui prépare ladite quantité de manière séparée à une alimentation en agent séparateur, afin de distribution dans le prochain jet de pulvérisation,
    - l'unité de dosage présentant un espace d'agent séparateur (6), lequel est lié de manière verrouillable, à travers un conduit d'alimentation en agent séparateur (9), avec une source d'agent séparateur et, à travers un conduit de connexion aux buses (11), avec la au moins une buse de pulvérisation associée, et un élément de dosage (5, 5') délimitant l'espace d'agent séparateur, qui est agencé mobile pour modifier le volume de l'espace d'agent séparateur, caractérisé en outre en ce que l'élément de dosage (5,5') se trouve, avec au moins une buse de pulvérisation associée, dans un commun corps de boîtier (2), et
    - une vanne anti-retour (10) est prévue dans le conduit d'alimentation en agent séparateur ou une vanne multi-voies (24) est prévue pour sélectivement bloquer la liaison de l'espace d'agent séparateur avec la buse de pulvérisation et libérer la liaison entre l'espace d'agent séparateur avec la source d'agent séparateur, respectivement libérer la liaison de l'espace d'agent séparateur avec la buse de pulvérisation et bloquer la liaison entre l'espace d'agent séparateur avec la source d'agent séparateur.
  2. Dispositif de pulvérisation d'agent séparateur selon la revendication 1, caractérisé en outre en ce qu'une vanne anti-retour (12) est prévue dans le conduit de connexion aux buses.
  3. Dispositif de pulvérisation d'agent séparateur selon la revendication 1 ou 2, caractérisé en outre en ce que l'unité de dosage comporte un espace de milieu de commande (7) qui est relié à une source de milieu de commande pour commander le mouvement de l'élément de dosage.
  4. Dispositif de pulvérisation d'agent séparateur selon la revendication 3, caractérisé en outre en ce que la source de milieu de commande comporte des moyens pour la mise sous pression avec au moins deux pressions de commande différentes de l'élément de dosage, une première pression de commande servant au dosage de l'agent séparateur dans l'espace d'agent séparateur et une deuxième pression de commande, différente de la première, servant à la distribution de l'agent séparateur dosé.
  5. Dispositif de pulvérisation d'agent séparateur selon l'une des revendications 1 à 4, caractérisé en outre en ce que les moyens de distribution sont adaptés à ajuster différentes quantités d'agent séparateur à distribuer pour différents buses de pulvérisation et/ou pour différent jets de pulvérisation.
  6. Dispositif de pulvérisation d'agent séparateur selon la revendication 5, caractérisé en outre en ce qu'un limiteur de mouvement réglable (17, 17a) est associé à l'élément de dosage pour ajuster de manière variable la quantité d'agent séparateur à distribuer par jet de pulvérisation à travers la au moins une buse de pulvérisation associée.
  7. Dispositif de pulvérisation d'agent séparateur selon l'une des revendications 1 à 6, caractérisé en outre en ce que l'élément de dosage contient un piston de dosage (5) limitant l'espace d'agent séparateur ou une membrane de dosage (5') limitant l'espace d'agent séparateur.
EP08020282A 2007-11-30 2008-11-21 Dispositif de pulvérisation d'agent séparateur pour une machine de coulée Active EP2065100B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE202008017846U DE202008017846U1 (de) 2007-11-30 2008-11-21 Trennmittelsprühvorrichtung für eine Gießmaschine
PL08020282T PL2065100T3 (pl) 2007-11-30 2008-11-21 Urządzenie rozpylające środek antyadhezyjny do maszyny odlewniczej
EP08020282A EP2065100B1 (fr) 2007-11-30 2008-11-21 Dispositif de pulvérisation d'agent séparateur pour une machine de coulée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP07023220A EP2065099A1 (fr) 2007-11-30 2007-11-30 Dispositif de pulvérisation d'agent séparateur pour une machine de coulée
EP08020282A EP2065100B1 (fr) 2007-11-30 2008-11-21 Dispositif de pulvérisation d'agent séparateur pour une machine de coulée

Publications (2)

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EP2065100A1 EP2065100A1 (fr) 2009-06-03
EP2065100B1 true EP2065100B1 (fr) 2010-09-15

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EP07023220A Withdrawn EP2065099A1 (fr) 2007-11-30 2007-11-30 Dispositif de pulvérisation d'agent séparateur pour une machine de coulée
EP08020282A Active EP2065100B1 (fr) 2007-11-30 2008-11-21 Dispositif de pulvérisation d'agent séparateur pour une machine de coulée

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07023220A Withdrawn EP2065099A1 (fr) 2007-11-30 2007-11-30 Dispositif de pulvérisation d'agent séparateur pour une machine de coulée

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US (1) US8042750B2 (fr)
EP (2) EP2065099A1 (fr)
JP (1) JP2009131901A (fr)
CN (1) CN101486067B (fr)
AT (1) ATE481179T1 (fr)
DE (2) DE502008001307D1 (fr)
ES (1) ES2350462T3 (fr)
PL (1) PL2065100T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2949983B1 (fr) * 2009-09-14 2013-06-14 Air Et Pulverisation Dispositif de pulverisation de peinture
JP5431102B2 (ja) * 2009-10-07 2014-03-05 旭サナック株式会社 離型剤の塗布装置
DE102011005996A1 (de) * 2011-03-23 2012-09-27 Kaltenbach & Voigt Gmbh Dosiervorrichtung
CN103936279A (zh) * 2013-01-23 2014-07-23 上海福耀客车玻璃有限公司 一种汽车天窗玻璃用脱模剂自动控制系统
CN106985312A (zh) * 2017-05-19 2017-07-28 林兮 一种塑胶成型机模具用喷油器
AT521693B1 (de) * 2019-01-11 2020-04-15 Nowe Gmbh Verfahren zur Steuerung einer Einrichtung zur Dosierung von Granulat und Dosiereinrichtung zur Dosierung von Granulat
CN110899650B (zh) * 2019-12-18 2020-10-23 浙江上风高科专风实业有限公司 一种无焊接轴流风机的高压铸造工艺
CN120291694B (zh) * 2025-06-11 2025-09-02 中建三局集团西北有限公司 一种铝模体系下成型钢筋骨架体系及其施工方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3059860A (en) * 1959-11-17 1962-10-23 Hugo Boskamp Atomizing nozzle assembly
US3693757A (en) * 1970-08-03 1972-09-26 Mccord Corp Lubricating apparatus
US3888420A (en) * 1973-11-16 1975-06-10 Uni Mist Positive-displacement mist lubricator
DE3238201A1 (de) 1982-10-15 1984-06-20 Oskar Frech GmbH + Co, 7060 Schorndorf Spruehkopf, insbesondere zum auftragen und verteilen von trennmittel auf druck- und spritzgussformen
US4714199A (en) * 1986-05-09 1987-12-22 Heath Allan B Liquid atomizing nozzle for spray apparatus
US4955953A (en) * 1988-11-15 1990-09-11 Kls International Corporation Lubricating device
JPH06307332A (ja) * 1993-04-26 1994-11-01 Honda Motor Co Ltd シリンダ吸入圧送装置
DE4318647A1 (de) * 1993-06-04 1994-12-08 Baldwin Gegenheimer Gmbh Flüssigkeits-Sprühvorrichtung, insbesondere für Druckmaschinen
EP1468745B1 (fr) 2003-04-19 2006-06-28 Oskar Frech GmbH + Co. KG Elément de pulvérisation pour une tête de pulvérisation
JP2006274892A (ja) * 2005-03-29 2006-10-12 Robotech Co Ltd 流体供給装置

Also Published As

Publication number Publication date
PL2065100T3 (pl) 2011-03-31
HK1128901A1 (zh) 2009-11-13
DE202008017846U1 (de) 2010-08-26
CN101486067A (zh) 2009-07-22
US8042750B2 (en) 2011-10-25
JP2009131901A (ja) 2009-06-18
DE502008001307D1 (de) 2010-10-28
CN101486067B (zh) 2012-08-01
EP2065099A1 (fr) 2009-06-03
EP2065100A1 (fr) 2009-06-03
US20090302192A1 (en) 2009-12-10
ATE481179T1 (de) 2010-10-15
ES2350462T3 (es) 2011-01-24

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