EP2506999A1 - Unité de coulée destinée à une machine à coulée sous pression - Google Patents
Unité de coulée destinée à une machine à coulée sous pressionInfo
- Publication number
- EP2506999A1 EP2506999A1 EP10787072A EP10787072A EP2506999A1 EP 2506999 A1 EP2506999 A1 EP 2506999A1 EP 10787072 A EP10787072 A EP 10787072A EP 10787072 A EP10787072 A EP 10787072A EP 2506999 A1 EP2506999 A1 EP 2506999A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- casting
- piston
- chamber
- casting chamber
- unit according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005266 casting Methods 0.000 title claims abstract description 393
- 238000004512 die casting Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 88
- 238000005496 tempering Methods 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 abstract description 8
- 239000002184 metal Substances 0.000 abstract description 8
- 238000011161 development Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 239000000289 melt material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 5
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 239000003570 air Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005429 filling process Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001128 Sn alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910001297 Zn alloy Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 235000011850 desserts Nutrition 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- -1 ie the hot Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
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
- B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
-
- 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
- B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
- B22D17/04—Plunger machines
-
- 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
- B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
-
- 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
- B22D17/2023—Nozzles or shot sleeves
-
- 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
- B22D17/203—Injection pistons
-
- 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
Definitions
- the invention relates to a pouring unit for use in a die casting machine, wherein the pouring unit includes a casting chamber body and a casting piston.
- the casting chamber body has a casting material fillable casting chamber with a casting material inlet and a casting material outlet.
- the casting piston is advanceable in the casting chamber in a casting piston longitudinal direction to discharge casting material under pressure from the casting chamber via the casting material outlet, and retractable, whereby casting material can be fed into the casting chamber via the casting material inlet.
- Such pouring units are typically used in the corresponding die casting machines, for example of the hot chamber or cold chamber type, to promote a molten metal by the action of the casting piston from the casting chamber at high speed and high pressure in a mold cavity. In the mold cavity, solidification of the molten metal then forms the desired metallic casting.
- casting material eg alloys of zinc, Al or magnesium
- the casting unit has to endure relatively high temperatures and pressures of the molten metal of, for example, more than 600 ° C. and 1000 bar, which is known to require special constructive measures.
- the casting piston is typically designed as a slide piston which can be axially moved back and forth in a hollow-cylindrical casting chamber body, its outer cross-section corresponding to the internal cross-section of the casting chamber body.
- this spool forms an axially movable end wall of the casting chamber which variably delimits the casting chamber volume
- this conventional casting piston type sealing the casting chamber volume towards this end face by its external cross section corresponding to the internal cross section of the casting chamber body, possibly assisted by associated sealing means, e.g. are arranged on the piston outer circumference.
- the power transmission to the casting piston via a provided on the casting chamber facing away from the front end of the casting piston piston shaft with respect to the casting piston of smaller cross-section.
- the casting piston shaft may e.g. be led out by an associated passage opening in G moncroanalysis from the latter, in which case this passage opening has a corresponding to that of the piston skirt cross section, which is smaller than the casting piston outer cross section and the inner cross section of the cylindrical casting chamber body.
- Casting units with said spool type pose some specific technological challenges.
- One problem is the effect of so-called edge shell solidification. Due to the comparative The cooler cylinder wall of the casting chamber body can solidify melt material on its inner wall and disturb or aggravate the movement of the casting piston sealingly moving along it with two-dimensional surface contact.
- air is usually also present in the casting chamber, which must be expelled again during the mold filling operation, ie during advancing of the casting piston, or can lead to melt oxidation problems.
- the invention is based on the technical problem of providing a casting unit for a die casting machine, which can eliminate or at least reduce the above-mentioned difficulties of conventional casting piston-type casting units.
- the invention solves this problem by providing a pouring unit having the features of claim 1.
- the pouring piston extends through a feedthrough opening of the pouring chamber body from outside into the pouring chamber, with a free space region of the pouring chamber being moved between an outer casing surface of the pouring chamber into the pouring chamber Casting piston and one of these transverse to the casting piston longitudinal direction opposite inner wall surface of the casting chamber body is formed by an outer cross section of the casting piston is correspondingly smaller than an inner cross section of the casting chamber.
- the casting piston is of a displacer type which accordingly reduces the casting chamber volume by moving forward into the casting chamber without sealingly abutting its outer cross section in the manner of a conventional slide piston against the inner cross section of the casting chamber body.
- the casting material inlet opens into the free space region and / or into the casting material outlet of the casting chamber.
- This has the advantageous consequence that the pouring chamber inlet is not blocked even with maximum advancing casting piston of the latter.
- casting material can be fed from its maximum advancing position via the pouring inlet into the casting chamber already at the beginning of the return movement of the casting piston.
- the pouring inlet is mostly blocked by the advancing pouring piston and is released therefrom only when the pouring piston has moved back a certain distance from its maximum advancing position.
- the present casting unit thus enables a comparatively uniform, homogeneous feeding of casting material into the casting chamber and thus also the avoidance of undesirable turbulences and an undesirable suction of ambient air over the - -
- Casting material outlet when moving back the casting plunger The casting chamber can thus always be kept completely filled with casting material without further notice.
- the casting material inlet and / or a casting material supply line assigned to it are provided with a shut-off element which prevents casting material from emerging from the casting chamber via the casting material inlet.
- a shut-off element which prevents casting material from emerging from the casting chamber via the casting material inlet.
- it may be an active or passive shut-off element of conventional type, e.g. around a corresponding check valve.
- the casting chamber body has a hollow cylinder, and the passage opening is provided at a front end thereof.
- the casting piston can then extend, for example, with the piston longitudinal axis parallel to the hollow cylinder longitudinal axis, axially via the passage opening into the casting chamber.
- the casting material outlet and / or the casting material inlet is provided on the end face of the hollow cylinder opposite the feed-through opening or on a cylinder jacket surface of the hollow cylinder.
- a guide sleeve is provided for the casting piston, which extends from one of the casting chamber outside of the passage opening to the outside and / or from one of the casting chamber facing inside the passage opening into the casting chamber inside.
- a sealing element is provided for sealing the G mankolben presser.
- the sealing element is arranged on a casting chamber-facing inside of the passage opening or the guide sleeve. Arranging on the inside has the advantage that solidified melt material, if it should come to a solidification effect in this area, can easily be pushed back into the casting chamber during advancement of the casting piston without resulting in disturbing phenomena of friction between the casting piston and the inner wall of the casting chamber body Has. Even when moving back the casting piston makes melt material that eventually solidifies in the region of the sealing element on the inside of the lead-through opening or the guide sleeve, no problems, if only because this return movement can take place quasi unpressurized in contrast to the advance of the casting.
- the casting material in the casting chamber is not in the return movement of the casting piston under the high pressure, as it prevails during the Formglallphase when advancing the casting piston, but is depressurized or at most under a much lower supply pressure, optionally for feeding of casting material into the casting chamber can be used.
- a casting piston temperature control device for at least partially active temperature control of the casting piston.
- the temperature of the casting piston can be actively influenced, the part of which in each case being in the casting chamber being subject to the action of temperature by the hot casting material there.
- the casting piston temperature control device is designed to be able to actively temper the casting piston in accordance with a predeterminable temperature profile along at least part of its length. For example, this may lead to a temperature gradient along the - -
- a casting chamber temperature control device for active temperature control of the casting chamber. This can be used, for example, to prevent melting solidification effects in the casting chamber or to achieve a relatively homogeneous temperature distribution of the casting material in the casting chamber.
- the casting unit has a relief ring groove and a discharge channel, wherein the relief ring groove is located on a casting piston facing inner wall of the passage opening or the guide sleeve and the discharge channel leads from the Entlastungsringnut out to the outside of the casting chamber. If e.g. due to wear some melt material or other fluid between the casting piston and feedthrough opening or guide sleeve passes, this can be discharged through the relief ring groove and the discharge channel controlled to the outside.
- 1 is a schematic side view of a pouring unit for a
- FIG. 2 shows a view corresponding to FIG. 1 for a variant of the casting unit with relief ring groove and relief channel
- FIG. 3 shows a view corresponding to FIG. 2 for a variant of the casting unit, in which a casting material inlet opens into a casting material outlet region instead of a free space region of the casting chamber, FIG.
- Fig. 4 is a view corresponding to Fig. 2 for a variant of the casting unit with a primarily in the casting chamber instead of from the casting chamber outwardly extending casting piston guide sleeve and
- Fig. 5 is a view corresponding to FIG. 4 for a variant of the casting unit without active G foolschtempertician.
- the casting unit shown schematically in FIG. 1 is particularly suitable for processing liquid and semi-molten metal melts, such as alloys of tin, zinc, lead, aluminum, magnesium, titanium, steel or copper or several of these metals, mixtures of several metals and optionally such materials with admixtures of particles, in an associated die casting machine.
- the casting unit can be installed, for example, as a so-called vertical or horizontal casting unit in the caster in question, depending on requirements and in particular depending on Druckg phonemaschinentyp.
- the casting unit has a casting chamber body 1, which in the example shown comprises a hollow cylinder 1 a, which forms a casting chamber 2 with its interior. At a right in Fig.
- a G manmaterialauslass 3 is provided, can be supported on the casting material from the casting chamber 2 in a conventional, not further shown manner in a mold cavity formed in the usual way by a fixed and a movable mold half of the die casting machine is defined and the contour of a casting to be produced.
- the casting unit comprises a casting piston 4, which is realized as an elongated displacement piston and extends through a passage opening 5 of the casting chamber body 1 from the outside into the casting chamber 2.
- the passage opening 5 is provided at the end opposite the G confusematerialauslass 3 front side of the hollow cylindrical Gellohunt stressess 1, and indeed as the G manmaterialauslass 3 centrally to a longitudinal axis 1 b of the casting chamber hollow cylinder. 1
- the casting piston 4 is held axially reciprocable with the hollow cylinder longitudinal axis 1 b aligned longitudinal axis 4a, as symbolized by a movement double arrow B, where it is shown in Fig. 1 in a rearward end position.
- the casting piston 4 has an outer diameter d which is constant at least via a part of the casting piston 4 that can be moved into the casting chamber 2 or through the lead-through opening 5 and essentially corresponds to the diameter of the lead-through opening 5.
- this part of the casting piston 4 may also have a slightly conical shape, in which case provision must be made for a suitable sealing.
- the casting chamber hollow cylinder 1 a has a larger inner diameter D, ie D> d, so that an annular gap 6 remains between the advancing in the casting chamber G confusekolbenabterrorism and the radially opposite G manttingwand as a free space region of the casting chamber, which permanently belongs to G dirt screeningvolumen he is not shut off from the casting piston.
- a casting chamber side front end 4c of the casting piston 4 is located at a small distance from the passage opening 5 in the casting chamber 2. From this rear end position, the casting piston 4 can each be advanced so far that the desired amount of liquid or partially liquid casting material is discharged in the associated mold filling from the casting chamber 2 in the Formkavitat, ie The volume of casting material to be discharged is equal to the volume of the casting plunger 4 moved into the casting chamber 2.
- the casting plunger 4 can be advanced to a position in which its front face end 4c reaches the inner wall of the casting chamber body 1 at the end face which is the G dirtmaterialauslass 3, wherein the piston diameter d in this example is greater than a diameter a of the G fauxauslasses 3.
- the casting piston 4 can advance with its front end 4c into the G manmaterialauslass 3, if appropriate for the particular application.
- the front end position of the casting piston 4 can be defined by the stroke of a conventional, not shown drive for the casting piston 4 or by a corresponding limit stop.
- Casting material can be supplied to the casting chamber 2 via a casting material feed line 7 and an associated casting material inlet 8, which is introduced into a cylinder jacket surface of the hollow cylinder 1 a.
- the casting material inlet 8 and / or the casting material supply line 7 are provided with a - - Actively or passively acting shut-off element 9 is provided with the prevents that located in the casting chamber casting material during advancement of the casting piston 4 in the casting chamber 2 via the G beauma- terialeinlass 8 can escape.
- the shut-off element 9 can be realized as a check valve as shown schematically.
- a sealing element 10 For sealing the passage of the casting piston 4 through the passage opening 5, a sealing element 10, e.g. a sealing rubber or metal ring, provided on a casting chamber side inside the passage opening 5.
- the sealing element 10 is preferably designed, e.g. As a correspondingly shaped sealing lip member that it presses under the pressure of the casting material in the casting chamber 2 sealingly against the performed casting piston 4 and / or embedded in the passage opening 5 or inserted.
- the sealing element 10 is an elastic or non-elastic design with suitable geometry can be used as needed.
- a guide sleeve 1 1 is provided with the piston diameter d corresponding sleeve inner diameter, which is realized in the example shown as an axial extension or flange of the casting chamber 1.
- the guide sleeve 1 1 is used in the illustrated embodiment for receiving a guide sleeve tempering device 12, which serves for active Materialsshülsentemper ist and axially extending as shown in the region of the passage opening 5.
- the tempering device 12 can also contribute to the temperature of the guided in the guide sleeve 1 1 casting piston 4.
- It may be, for example, of a type with a liquid or gaseous tempering medium which is passed through tempering passages which surround the casting plunger 4 coaxially in the corresponding section of the guide sleeve 11 or through the passage opening 5.
- a corresponding G mankolben tempering device 14 may be provided, which in turn is for example of a type with a liquid or gaseous temperature control, which is passed through one or more temperature control channels 14a, which in the casting piston 4 itself extend.
- this is realized in that a tempering tube 15 is longitudinally inserted into an interior 16 of the casting piston 4 realized for this purpose as a hollow cylinder, leaving an annular gap between the temperature control tube 15 and the casting piston inner wall.
- the annular gap represents a first temperature control channel
- the temperature control tube 15 represents a second temperature control channel, whereby the temperature control medium can be guided via one of the two temperature control channels into the front casting piston area and can be led back to the rear via the other temperature control channel.
- the mentioned tempering 12, 14 can be used to actively temper the casting piston 4 and the guide sleeve 1 1 in the relevant section, for example, according to a predetermined temperature profile along at least a portion of its réellewegbaren in the casting chamber length. In particular, this can be counteracted depending on the needs and application of the influence of temperature of the hot casting melt in the casting chamber 2 on the movable into the casting chamber part of the casting piston 4, for example, for the purpose of not causing excessive axial temperature gradients in the casting piston 4, due to locally different piston material expansion could complicate the sealing of the casting piston 4 at the passage opening 5.
- the two temperature control devices 12, 14 can be suitably matched to one another for this purpose of a desired temperature control of the casting piston 4 and expediently also of the guide sleeve 1 1, wherein in alternative embodiments. - Forms only one of the two tempering 12, 14 may be provided.
- a casting chamber temperature control device 13 is provided, with which the casting chamber 2 together with casting material inlet 8 together with adjoining casting material supply line 7 and casting material outlet 3 together with adjoining casting material outlet line can be controllably actively controlled in a desired manner.
- this tempering device 13 can also be used e.g. be of a type with a liquid or gaseous tempering, which is passed through tempering, which surround the hollow cylinder 1 a and the G manmaterialzuschreibtechnisch 7 and / or the G manmaterialauslass Ober coaxial.
- the tempering device 13 With this tempering device 13, it is consequently possible to keep the casting material at a comparatively constant temperature level without strong temperature gradients, when it is fed into the casting chamber 2 via the supply line 7 for the next casting operation, stored there and then discharged via the casting material outlet 3 in the mold filling process becomes. If required, the tempering device 13 can be divided into a plurality of separately controllable tempering zones or tempering units.
- the casting piston 4 acts as a pure displacement piston whose feed into the casting chamber 2 determines the melt quantity to be discharged from the casting chamber 2 as usual under high speed and high pressure , wherein the casting piston 4 moves freely into the casting chamber 2, without being guided with its lateral surface on a cylinder inner wall of the casting chamber body 1 along. Disturbing frictional effects on a corresponding sliding surface between casting piston and casting chamber wall, as they are the conventional casting units from Schieberkol- - inherent in the casting unit of the positive displacement piston type are inherent in this casting unit.
- the displacement piston principle implemented here facilitates the construction of a high pressure and the movement of the casting piston 4 at high speed to effect the mold filling, wherein the then closed shut-9 holds the casting material 8 closed, so that the casting material displaced by the casting piston 4 alone on the G confusematerialauslass 3 from the pouring chamber 2 out to fill the mold cavity.
- the casting piston configuration according to the invention has the advantage that no piston lubricant is needed and consequently no corresponding residues can occur in the casting produced.
- FIGS. 2 to 5 illustrate various advantageous variants of the casting unit of FIG. 1, wherein the same reference symbols are used to facilitate understanding of identical or functionally equivalent elements. - - are used and to that extent can be made to the above comments on casting unit of FIG. 1.
- the casting unit shown in FIG. 2 has, in addition to that of FIG. 1, a relief annular groove 17 and an associated relief channel 18.
- the relief ring groove 17 is annularly introduced in this example in the inner wall of the guide sleeve 1 1, and at an axial height between the passage opening 5 of the casting chamber 1 and the axially outer end face of the guide sleeve 1 1.
- the discharge channel 18 leads from the relief ring 17 to the outside ie in the outer space outside the casting chamber 1, to which the relief channel 18 is introduced, for example, as a radial bore through the wall of the guide sleeve 1 1.
- the relief annular groove 17, together with the discharge channel 18, forms a leakage-discharging means for the controlled removal of any material, such as melt material, which may undesirably enter the space between the casting piston 4 and the through-hole 5 or guide sleeve 11, e.g. due to wear on the outside of the casting piston 4, on the sealing element 10 and / or on the inside of the passage opening 5 and der foundedshülse 1 1.
- the casting unit shown in FIG. 3 differs from those of FIGS. 1 and 2 in that the casting material inlet 8 does not open into the clearance area 6, but into the region of the casting material outlet 3 of the casting chamber 2. This placement of the casting material inlet 8 ensures that it is not blocked off by the advancing casting piston 4. Otherwise, the features and advantages explained above on the exemplary embodiments of FIGS. 1 and 2 likewise apply to the casting unit of FIG. 3. - -
- the pouring unit shown in Fig. 4 differs from those of Figs. 1 and 2 in that for the supported guidance of the casting piston 4, a guide sleeve 1 1 'is formed, which in this case extends primarily into the casting chamber 2, i. with a predeterminable axial guide sleeve length in between the casting piston 4 and casting chamber inner wall 1 c remaining free space area 6 inside.
- the sealing element 10 is arranged in this example in the region of the inner front end of this guide sleeve 1 1 'or embedded therein.
- the relief annular groove 17 and the discharge channel 18, which may optionally be provided in this variant of the casting unit, are in the range of a relatively short axial, from the actual casting chamber hollow cylinder 1 a outwardly facing part of the guide sleeve support of the casting piston 4th
- the guide sleeve tempering device 12 Since in this embodiment the predominant part of the guide sleeve 1 1 'is in the casting chamber 2 and can therefore be heated during operation by the melt material present there, the guide sleeve tempering device 12, as shown in FIGS. 1 to 3 , optional omitted.
- the pouring unit shown in Fig. 5 corresponds to that of Fig. 4 with the exception that in this case the tempering device 13 is not provided for active G machinekolbentemper réelle.
- This casting unit is suitable, for example, for applications which do not require active heating of the casting chamber 2.
- This variant can be used, for example, for applications in which the complete casting unit dips into a melt bath, so that the casting unit is heated passively via the hot melt material, ie the hot, liquid melt material surrounds the casting chamber 2 or the casting chamber body 1 and holds them or this warm from the outside.
- this can be introduced via the casting material inlet 8 from the melt bath into the casting chamber 2 - -
- a casting piston having a non-circular cross-section and a correspondingly designed passage opening may be used, and / or the guide sleeve may be realized as a component separately from the casting chamber body, possibly as a component mounted thereon ,
- the casting material inlet and the casting material outlet may be interchanged with respect to their positions in the exemplary embodiment shown or may open into the casting chamber at any other positions.
- the casting piston may, in corresponding embodiments, also transversely to the longitudinal direction of the G fauxmaterialauslasses - - and / or the pouring material inlet into the casting chamber extend into it.
- a heater for example, an electric heater with electric heating elements.
- the free space area is formed as a circumferentially continuous annular gap, i. the casting piston moves freely in the casting chamber 2 without support.
- a point or line guide of the casting piston may be provided within the casting chamber, i.
- the casting piston engages with an outer circumferential surface along one or more line contacts and / or along one or more point contacts against a transverse to the casting piston movement direction opposite boundary wall of the casting chamber.
- the illustrated embodiment could be used in the sense of line contact e.g. be modified so that the hollow cylinder inner wall 1 c or the casting piston outer circumferential surface 4 b arranged distributed on the circumference, is provided with axial direction component guide webs, which keep the casting piston 4 guided within the casting chamber 2 in its axial movement. These guide webs then divide the annular gap clearance 6 into several corresponding segments.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL10787072T PL2506999T3 (pl) | 2009-11-30 | 2010-11-24 | Jednostka odlewnicza do maszyny odlewniczej ciśnieniowej |
HRP20170511TT HRP20170511T1 (hr) | 2009-11-30 | 2017-03-29 | Injektorska jedinica stroja za tlačno lijevanje u kalupu |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009057197A DE102009057197B3 (de) | 2009-11-30 | 2009-11-30 | Gießeinheit für eine Druckgießmaschine |
PCT/EP2010/068123 WO2011064253A1 (fr) | 2009-11-30 | 2010-11-24 | Unité de coulée destinée à une machine à coulée sous pression |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2506999A1 true EP2506999A1 (fr) | 2012-10-10 |
EP2506999B1 EP2506999B1 (fr) | 2017-01-04 |
Family
ID=43480884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10787072.7A Active EP2506999B1 (fr) | 2009-11-30 | 2010-11-24 | Ensemble d'injection pour machine a couler sous pression |
Country Status (13)
Country | Link |
---|---|
US (1) | US9233417B2 (fr) |
EP (1) | EP2506999B1 (fr) |
JP (2) | JP5947216B2 (fr) |
KR (1) | KR101746786B1 (fr) |
CN (1) | CN102712039B (fr) |
BR (1) | BR112012013027B1 (fr) |
DE (1) | DE102009057197B3 (fr) |
ES (1) | ES2617328T3 (fr) |
HR (1) | HRP20170511T1 (fr) |
MX (1) | MX2012006125A (fr) |
PL (1) | PL2506999T3 (fr) |
RU (1) | RU2570266C2 (fr) |
WO (1) | WO2011064253A1 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102020207016A1 (de) | 2020-06-04 | 2021-12-09 | Oskar Frech Gmbh + Co. Kg | Gießeinheit für eine Druckgießmaschine |
DE102020207704A1 (de) | 2020-06-22 | 2021-12-23 | Oskar Frech Gmbh + Co. Kg | Druckgießmaschine und Betriebsverfahren |
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DE102009057197B3 (de) * | 2009-11-30 | 2011-05-19 | Oskar Frech Gmbh + Co. Kg | Gießeinheit für eine Druckgießmaschine |
-
2009
- 2009-11-30 DE DE102009057197A patent/DE102009057197B3/de active Active
-
2010
- 2010-11-24 KR KR1020127016642A patent/KR101746786B1/ko active IP Right Grant
- 2010-11-24 MX MX2012006125A patent/MX2012006125A/es active IP Right Grant
- 2010-11-24 RU RU2012124327/02A patent/RU2570266C2/ru active
- 2010-11-24 BR BR112012013027-7A patent/BR112012013027B1/pt active IP Right Grant
- 2010-11-24 PL PL10787072T patent/PL2506999T3/pl unknown
- 2010-11-24 JP JP2012540417A patent/JP5947216B2/ja active Active
- 2010-11-24 WO PCT/EP2010/068123 patent/WO2011064253A1/fr active Application Filing
- 2010-11-24 US US13/512,544 patent/US9233417B2/en active Active
- 2010-11-24 CN CN201080054093.6A patent/CN102712039B/zh active Active
- 2010-11-24 ES ES10787072.7T patent/ES2617328T3/es active Active
- 2010-11-24 EP EP10787072.7A patent/EP2506999B1/fr active Active
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2015
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2017
- 2017-03-29 HR HRP20170511TT patent/HRP20170511T1/hr unknown
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See references of WO2011064253A1 * |
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ES2617328T3 (es) | 2017-06-16 |
BR112012013027B1 (pt) | 2022-07-19 |
RU2570266C2 (ru) | 2015-12-10 |
WO2011064253A1 (fr) | 2011-06-03 |
PL2506999T3 (pl) | 2017-07-31 |
BR112012013027A2 (pt) | 2016-11-22 |
CN102712039A (zh) | 2012-10-03 |
RU2012124327A (ru) | 2014-01-10 |
HRP20170511T1 (hr) | 2017-06-02 |
DE102009057197B3 (de) | 2011-05-19 |
US20120273530A1 (en) | 2012-11-01 |
JP5947216B2 (ja) | 2016-07-06 |
KR101746786B1 (ko) | 2017-06-13 |
US9233417B2 (en) | 2016-01-12 |
JP2013512106A (ja) | 2013-04-11 |
KR20120098820A (ko) | 2012-09-05 |
JP2015096279A (ja) | 2015-05-21 |
MX2012006125A (es) | 2012-07-23 |
EP2506999B1 (fr) | 2017-01-04 |
CN102712039B (zh) | 2015-07-29 |
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