WO1986001442A1 - Dispositif d'humectation de la surface de moules avec un liquide - Google Patents

Dispositif d'humectation de la surface de moules avec un liquide Download PDF

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Publication number
WO1986001442A1
WO1986001442A1 PCT/EP1985/000423 EP8500423W WO8601442A1 WO 1986001442 A1 WO1986001442 A1 WO 1986001442A1 EP 8500423 W EP8500423 W EP 8500423W WO 8601442 A1 WO8601442 A1 WO 8601442A1
Authority
WO
WIPO (PCT)
Prior art keywords
spray
spray nozzle
adjusting
fixed part
nozzle carrier
Prior art date
Application number
PCT/EP1985/000423
Other languages
German (de)
English (en)
Inventor
Hans Thurner
Original Assignee
Bayrisches Druckgusswerk Thurner Gmbh & 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 Bayrisches Druckgusswerk Thurner Gmbh & Co. Kg filed Critical Bayrisches Druckgusswerk Thurner Gmbh & Co. Kg
Priority to AT85904440T priority Critical patent/ATE53315T1/de
Priority to DE8585904440T priority patent/DE3578046D1/de
Publication of WO1986001442A1 publication Critical patent/WO1986001442A1/fr

Links

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
    • 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

Definitions

  • the invention relates to a device for wetting mold surfaces with a liquid for cooling, cleaning and / or lubricating purposes for use on die casting machines or the like. With the features of the preamble of claim 1.
  • a die is subjected to considerable thermal stress due to the high temperatures of the cast metals. Since the heat dissipation from the inside of the mold cannot take place uniformly over the entire outer shell of the mold (the heat dissipation depends, for example, on the thickness of the mold wall), there is also the need to specifically cool the mold after a molding process. This can also be accomplished by spraying a relatively cold liquid.
  • spray heads are built which are individually adapted, developed and manufactured to an associated shape and have a spray nozzle arrangement or spray nozzle cross sections which are tailored precisely to the shape of the shape. A spray head of this type is therefore to be used exclusively in connection with the associated specific casting mold.
  • a spray device for use on molding machines which shows the features of the preamble of claim 1.
  • a spray head is provided with a plurality of directionally adjustable spray nozzles, which are connected to a liquid and a compressed air inlet via head-internal channels.
  • the entrances are connected to liquid or compressed air reservoirs.
  • Each spray nozzle is provided with an adjustable throttle valve for specifically influencing the amount of compressed air and / or liquid passed on to the spray nozzles.
  • the spray head itself is brought in front of the mold surface to be sprayed by means of movable holding elements.
  • Such a spray head can not only be used on a specific shape, but can also be used on shapes of different designs due to the adjustability of its nozzle arrangement.
  • the adaptation of the spray nozzle arrangement to a new shape, in particular the direction setting of the individual nozzles and the adjustment of the associated throttle valves is very time-consuming and can only be determined empirically. This means that after a first rough setting, a die casting process, the quality of which must be carried out then, if necessary, decides on new readjustments of the spray head. Such a procedure is not only material, but also very time consuming.
  • the invention is based on the object of designing a device for wetting mold surfaces with a liquid for cooling, cleaning and / or lubricating purposes in such a way that it is suitable for the targeted treatment of different mold surfaces without each renewed mold change or each time a mold is reused, expensive adjustment work has to be carried out, a faster, automatic die-casting operation is ensured without rejects and excessively high manufacturing and warehousing costs are avoided.
  • This object is achieved by the characterizing features of claim 1, advantageous further developments of the device according to the invention emerge from the subclaims.
  • the machine-fixed Spray head part that can be attached in a simple manner (spray head carrier) are generally only assigned to the spray nozzles that are adapted to a corresponding shape once in terms of their spray direction and spray intensity.
  • all the cost-intensive parts of the spraying device remain connected to the die-casting injection molding machine (or forging machines, punches, deep-drawing machines and the like) and can be used on different molds.
  • the individually adapted spray head carrier is in stock and can be brought to use again in a few steps when the mold is reused without substantial adjustment work.
  • the spray nozzle carrier as an elongated, i. w. U-shaped bar is formed, which rests with its U-cross head on a sealing surface of the block-like solid part and with its two U-legs encompasses the fixed part laterally, since then the relatively sensitive built-in parts in the fixed part Parts are well protected and the spray head carrier is already subjected to the fixed part, particularly due to the lateral grip before final assembly (for example by screwing).
  • the two-part of the spray head is used in a particularly advantageous manner, since it is now possible, by adjusting elements arranged in the spray nozzle holder in the form of projections or the like, which interact with flexible elements (limit slides) of the throttle valves, by simply screwing on "Programming" the totality of all throttle valves from below, which corresponds exactly to the spray jet strengths required for a specific shape.
  • the individual adaptation of the spray head to an internal shape, however formed, is thus limited to a few simple steps.
  • the spray head carrier plate can continue to be used if one day the associated shape is no longer required.
  • the "target spray strength" of the spray head carrier is "reprogrammed” and adapted to the changing requirements.
  • the throttle valves are advantageously designed as metering valves which can be pneumatically controlled by control air.
  • a 3-limit slider is initially provided, which partially protrudes from the sealing surface and interacts with the adjusting element - be it adjustable as an adjusting screw or non-adjustable as a trough or nose.
  • a compression spring which acts on the valve-outside surface of an adjusting piston, which can be acted upon by control air on its inside valve 1 side facing away from the adjuster 1 and thus with compression of the above-mentioned compression spring can be pressed against the limit slide to open the valve.
  • the displacement of the adjustment piston is therefore limited by the axial position of the limit slide.
  • valve 1 connects to the adjusting piston via a rigid intermediate element, for example a control rod, a blocking slide which, in the blocking position, blocks a liquid channel opening into the valve bore in the blocking position and in the opening position when the adjusting piston is in contact at the delimitation slide more or less releases the liquid channel, the extent of the release in turn being dependent on the adjusting element of the spray nozzle carrier.
  • a rigid intermediate element for example a control rod
  • a blocking slide which, in the blocking position, blocks a liquid channel opening into the valve bore in the blocking position and in the opening position when the adjusting piston is in contact at the delimitation slide more or less releases the liquid channel, the extent of the release in turn being dependent on the adjusting element of the spray nozzle carrier.
  • a securing means preferably designed as a locking screw or counter screw, is provided in the area of the adjusting screw.
  • the spray nozzle holder is first brought into its displacement end position on the fixed part and then carefully from below by preferably captive retaining screws. ben while simultaneously transferring the "programming" to the limit slides is brought into firm and sealing contact with the sealing surface.
  • the adjusting elements (adjusting screws, limit slides and adjusting pistons) are provided with a central bore running in the axial direction, since the adjusting pistons can then be manually operated from the outside in a particularly simple manner with the aid of a tick or the like can be moved and loosened if it is jammed or stuck. It is also gentle on the material if an elastic damping member, for example in the form of a rubber ring or the like, is provided between the adjusting piston and the limit slide. A particularly sensitive adjustment of the amount of liquid let through is achieved by the special design of the locking slide, the setting process of the adjusting screw is facilitated by self-locking in the form of an anti-rotation device.
  • Claim 15 allows for easy opening and dismantling of the metering valves for cleaning and repair purposes when the spray nozzle holder is removed.
  • the spray nozzles are arranged at the free end of bendable spray tubes, not only is it possible to adjust the spray jet slightly, but in particular the spray nozzle can be brought in the immediate vicinity of the area of the mold to be sprayed, thereby achieving a particularly high spray intensity.
  • the spray tubes are detachable, for example screwed to the spray nozzle carrier, then spray tubes of different lengths and different cross sections can be provided on the spray nozzle carrier in the manner of extended spider legs. It is also advantageous if, in addition to the spray nozzles, compressed air glands are arranged on the spray nozzle carrier and are likewise fastened to nozzle tubes. With the help of these tubes, the sprayed-on liquid can be partially blown off or completely removed after the spraying process.
  • the spray nozzles for spraying the liquid are advantageously screwed onto the free end of the associated spray tube and can therefore be easily replaced and / or cleaned.
  • the spray nozzles can be pivoted separately with respect to the spray tube, so that undercut molded parts can also be sprayed out thoroughly.
  • the holding elements are designed in a manner known per se as a motor-operated extension arm and are arranged fixedly on the injection molding machine frame 1.
  • an input device in the form of a programmable logic controller should finally be provided, which automatically positions the spray head after opening the mold and removal of the molding and allows the spray cycle to run.
  • FIG. 1 shows a schematic elevation of a die-casting machine provided with a device for wetting the mold surfaces
  • FIG. 2 is a perspective view of the spray head with nozzle holder removed from the fixed part
  • Fig. 3 shows a section through the spray head in
  • FIG. 5 a detail 1 section according to FIG. 4 with a further venti 1 embodiment
  • FIG. 6 shows a partial section through the valve region of a further embodiment provided with the locking slide
  • FIG. 7 shows a section according to FIG. 6 of a further embodiment.
  • the device 10 for wetting mold surfaces 12 with a liquid for cooling, cleaning and / or lubricating purposes is to be used on a die casting machine 14.
  • a die casting machine Such a machine consists of a machine bed 16 and machine stands 18, 20 arranged thereon.
  • a fixed first mold half 22 is fastened to the latter, and hydraulic elements 24 are attached to the machine stand 18, through which a carriage 26 with a fastened thereon movable second mold half 28 can be moved.
  • the two mold halves 22, 28 form a closed die-casting mold with a parting joint 30.
  • a casting device designated overall by 32, is provided on the machine stand 16.
  • the device 10 for wetting mold surfaces with a liquid has a spray head 40, which is provided with a plurality of directionally adjustable spray nozzles 42 and has a liquid and a compressed air inlet. Channels 44 are provided within the spray head 40 for forwarding the compressed air or liquid present at the inputs to the spray nozzles 42, in which adjustable throttle valves 46 for specifically influencing the spray nozzles forwarded amount of compressed air and / or liquid are arranged.
  • the spray head 40 consists of a fixed part 48 which is fastened to the machine stand 20 via holding elements 50, namely a horizontally and vertically displaceable and pivotable gallows-like structure 52.
  • the spray nozzle holder 54 provided with the spray nozzles 42 is arranged so that it can be replaced easily.
  • the liquid and compressed air inlets, the channels 44 and the throttle valves 46 are provided in the fixed part 48.
  • the spray nozzle carrier 54 is a relatively simple component and has through bores 56, the inner end 58 of which is aligned with the outlet openings 60 of the channels 44 and the outer end 62 of which is connected to the spray nozzles 42.
  • the spray nozzle carrier 54 is designed as an elongated beam with a U-shaped cross section, which rests with its U-cross head 64 on a lower sealing surface 66 of the block-shaped fixed part 48 and with his two U-legs 68, 70 laterally engages around the fixed part 48.
  • insert ribs 76 extending in the longitudinal direction of the bar protrude from the inner sides 74 of the U-legs 68, 70 in the corresponding longitudinal grooves 78 of the side walls of the fixed part 48 engage.
  • both parts When the spray nozzle carrier 54 is pushed onto the fixed part 48, both parts have a mutual play in that between the groove side wall 80 on the spray nozzle side and the latter 3, a clear distance 84 is formed in the sealing final assembly position according to FIG. 3, which is greater than the maximum protruding length of parts protruding from the sealing surface 66, such as seals or valve parts described in more detail below.
  • the throttle valves 46 arranged in the fixed part 48 can be adjusted, for which purpose adjustment elements are provided on the spray nozzle carrier 54, which act on the throttle valves by simple contact.
  • the adjusting elements are designed as manually rotatable adjusting screws 86 with an Allen head, which are screwed into threaded bores 88 of the spray nozzle carrier 54, which run coaxially with the main axis of the valve, and with their inner ends 90 partially from the sealing surface 66 protruding limit slide 92 act from below.
  • the more detailed structure of the throttle valves that are preferably used can be seen in particular from FIG.
  • the throttle valves are designed as metering valves which can be pneumatically controlled by control air and are arranged in a valve bore 94.
  • they consist of the limit slider interacting with the adjusting screw 86, then an adjusting piston 96, which is acted upon with control air on its side (upper side) 98 facing away from the limit slide and with its underside 100 by means of a compression spring 102
  • Limiting slide supports the axial position of which limits the displacement of the adjusting piston, as can be clearly seen from the partial sectional view of the adjusting screw in FIG. 4. gives.
  • a locking slide 104 (not shown in FIG. 3) is then provided (cf. FIG. 3) is then provided (cf. FIG.
  • the screw-in position of the adjusting screw 86 is secured in the long term by a locking screw 112 against unintentional rotation.
  • the final assembly position shown in FIG. 3 (in this position there is the clear distance 84 in the groove area) is carried out by retaining screws 114 arranged in the spray nozzle holder 54, which are designed as so-called captive screws.
  • the adjusting screw 86, the limit slide 92 and the adjusting piston 96 are each provided with a central bore 116 which runs in the axial direction and is aligned with one another, in order to have a grip through to the locking slide 104 with a hook-like object in order to have this to loosen it should it get stuck.
  • FIGS. 5-7 show different configurations of the upper ends of the locking slide 104, which can be slotted according to FIG. 5 or formed with a lateral recess 122 according to FIG. 6 or frustoconical according to FIG. 7.
  • a plastic insert 124 forming a section of the screw jacket is provided in the thread area. which ensures a certain self-locking of the adjusting screw.
  • the end position of the limit slide 92 facing the spray nozzle holder 54 is fixed by a stop screw 126 which runs parallel to the valve bore 94 and blocks the axial movement of the limit slide 92 to the outside with a sector of its screw head 128.
  • the spray nozzles 42 are arranged at the free end 130 of bendable spray tubes 132, which are provided with their fastening ends 134 with a fastening thread (union nut 136) for screwing with a mating thread provided on the spray nozzle carrier 54 in the form of a screw-in adapter 138.
  • a nozzle pipe 140 is also attached, at the free end of which a compressed air nozzle is arranged.
  • the spray nozzles 42 are screwed onto the free end 130 of the associated spray tube 132 and can be pivoted separately with respect to the tube axis of the free end 130 due to their spherical design.
  • an input device 142 designed as a programmable logic controller is attached to the machine bed 16 and can also be used to control the hydraulic elements 24 and / or the casting device 32.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
  • Spray Control Apparatus (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

Un dispositif (10) pour humecter la surface (12) de moules est agencé sur une machine à coulée sous pression (14) à des fins de refroidissement, de nettoyage et/ou de lubrification. Le dispositif (10) comprend une tête d'arrosage (40) pourvue de pulvérisateurs (42) orientables, dans laquelle sont agencées des conduites de liquide (44) et des soupapes d'étranglement (46) réglables. Afin d'obtenir un traitement approprié de surfaces de moules aux formes les plus diverses, sans qu'il soit nécessaire d'effectuer des ajustements coûteux à chaque fois qu'un nouveau moule est utilisé ou qu'un ancien moule est à nouveau utilisé, tout en assurant une coulée sous pression rapide et automatique sans rebuts et en évitant des coûts excessifs de production et de stockage, le dispositif est construit avec une tête d'arrosage (40) composée d'une partie rigide (48) et d'une partie de support des vaporisateurs (54) hermétiquement connectée à la première et aisément remplaçable. La partie rigide comprend les conduites (44) et les soupapes d'étranglement qui coopèrent avec celles-ci, et est connectée aux élémments mobiles de retenue, alors que le support des vaporisateurs est une pièce relativement simple et peu coûteuse comprenant uniquement les vaporisateurs (42) de même que, le cas échéant, des éléments de réglage pour régler les soupapes d'étranglement (46).
PCT/EP1985/000423 1984-08-24 1985-08-19 Dispositif d'humectation de la surface de moules avec un liquide WO1986001442A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT85904440T ATE53315T1 (de) 1984-08-24 1985-08-19 Vorrichtung zum benetzen von formoberflaechen mit einer fluessigkeit.
DE8585904440T DE3578046D1 (de) 1984-08-24 1985-08-19 Vorrichtung zum benetzen von formoberflaechen mit einer fluessigkeit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843431253 DE3431253A1 (de) 1984-08-24 1984-08-24 Vorrichtung zum benetzen von formoberflaechen mit einer fluessigkeit
DEP3431253.6 1984-08-24

Publications (1)

Publication Number Publication Date
WO1986001442A1 true WO1986001442A1 (fr) 1986-03-13

Family

ID=6243845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1985/000423 WO1986001442A1 (fr) 1984-08-24 1985-08-19 Dispositif d'humectation de la surface de moules avec un liquide

Country Status (6)

Country Link
EP (1) EP0190340B1 (fr)
JP (1) JPS6182957A (fr)
KR (1) KR860001628A (fr)
AU (1) AU4805885A (fr)
DE (2) DE3431253A1 (fr)
WO (1) WO1986001442A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5441565A (en) * 1992-12-15 1995-08-15 Mcneil-Ppc, Inc. System for coating pharmaceutical products
CN108914709A (zh) * 2018-08-22 2018-11-30 永发（江苏）模塑包装科技有限公司 一种高品质纸模产品脱模装置
US20210268572A1 (en) * 2018-07-10 2021-09-02 Sintokogio, Ltd. Die molding surface treatment device

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DE3629696A1 (de) * 1986-09-01 1988-03-10 Thurner Bayer Druckguss Spruehvorrichtung
DE3912718A1 (de) * 1989-04-18 1990-10-25 Findag Corp Nv Sprueheinrichtung zum bespruehen von formgebungsteilen an einer formgebungsmaschine
JPH0685312U (ja) * 1993-05-28 1994-12-06 今井 正之 表裏異色染の布帛を用いた着物
DE4336250A1 (de) * 1993-10-23 1995-04-27 Wotec Automationssysteme Gmbh Sprühblock eines Sprühwerkzeugs
DE4416311A1 (de) * 1994-05-09 1995-11-16 Itw Oberflaechentechnik Gmbh Sprühgerät-Befestigungsvorrichtung
DE19511272A1 (de) * 1995-03-27 1996-10-02 Acheson Ind Deutschland Zweign Zweistoff-Sprühdüse, insbesondere für ein Sprühelement eines Sprühwerkzeugs einer Formsprüheinrichtung, und Düsenwechselanordnung für Zweistoff-Sprühdüsen
DE19541056A1 (de) * 1995-11-03 1997-05-07 Wotec Automationssysteme Gmbh Sprüheinrichtung
DE19753660C2 (de) * 1997-12-03 2001-01-25 Wagner Internat Ag Altstaetten Verfahren und Einrichtung zum Aufbringen eines Trennmittels auf eine Spritzgußform
EP1447161B1 (fr) * 2003-02-14 2006-08-16 Alcan Technology & Management Ltd. Buse de pulverisation
ATE381386T1 (de) 2003-06-13 2008-01-15 Wotec Automatisierungssysteme Sprühwerkzeug für giessereiformen
KR100756940B1 (ko) * 2006-06-27 2007-09-07 현대자동차주식회사 고압주조방법
DE102013205171A1 (de) * 2013-03-22 2014-09-25 Krautzberger Gmbh Spritzsystem, Spritzvorrichtung, Schnellwechseladapter und Wechselvorrichtung, Beschichtungsanlage sowie Verfahren zum Beschichten
DE102013223311A1 (de) 2013-11-15 2015-05-21 Bayerische Motoren Werke Aktiengesellschaft Wartungsstation für Gießwerkzeuge und Verfahren zum Warten eines Gießwerkzeuges
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
CN113751688A (zh) * 2021-09-08 2021-12-07 东莞市婕扬机械有限公司 一种铝合金压铸工艺

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5441565A (en) * 1992-12-15 1995-08-15 Mcneil-Ppc, Inc. System for coating pharmaceutical products
US20210268572A1 (en) * 2018-07-10 2021-09-02 Sintokogio, Ltd. Die molding surface treatment device
US11986878B2 (en) * 2018-07-10 2024-05-21 Sintokogio, Ltd. Die molding surface treatment device
CN108914709A (zh) * 2018-08-22 2018-11-30 永发（江苏）模塑包装科技有限公司 一种高品质纸模产品脱模装置
CN108914709B (zh) * 2018-08-22 2024-02-20 永发（江苏）模塑包装科技有限公司 一种高品质纸模产品脱模装置

Also Published As

Publication number Publication date
DE3431253A1 (de) 1986-03-06
DE3578046D1 (de) 1990-07-12
DE3431253C2 (fr) 1992-10-22
EP0190340B1 (fr) 1990-06-06
KR860001628A (ko) 1986-03-20
AU4805885A (en) 1986-03-24
JPH028822B2 (fr) 1990-02-27
JPS6182957A (ja) 1986-04-26
EP0190340A1 (fr) 1986-08-13

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