EP1478481A1 - Schmiervorrichtung einer druckgiessmaschine - Google Patents
Schmiervorrichtung einer druckgiessmaschineInfo
- Publication number
- EP1478481A1 EP1478481A1 EP03742905A EP03742905A EP1478481A1 EP 1478481 A1 EP1478481 A1 EP 1478481A1 EP 03742905 A EP03742905 A EP 03742905A EP 03742905 A EP03742905 A EP 03742905A EP 1478481 A1 EP1478481 A1 EP 1478481A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray
- lubricant
- casting cylinder
- spray nozzle
- casting
- 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.)
- Withdrawn
Links
- 238000004512 die casting Methods 0.000 title claims abstract description 11
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 72
- 238000005266 casting Methods 0.000 claims abstract description 49
- 239000000314 lubricant Substances 0.000 claims abstract description 28
- 238000000889 atomisation Methods 0.000 claims abstract description 5
- 238000005461 lubrication Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000010687 lubricating oil Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 239000003595 mist Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 6
- 239000002245 particle Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009736 wetting Methods 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
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2038—Heating, cooling or lubricating the injection unit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
- B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
- B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
- B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/70—Arrangements for moving spray heads automatically to or from the working position
Definitions
- the present invention relates to a device for lubricating a piston in the casting cylinder of a cold chamber die casting machine.
- the pressure piston presses the liquid aluminum through the casting cylinder into the mold.
- the mechanical movement between the pressure piston and the casting cylinder must be lubricated. This is done by dropping or spraying liquid lubricant on the piston or piston ring in the filling area of the die casting machine during the casting break.
- the piston or piston ring takes the lubricant into the casting cylinder and thus forms a lubricating film.
- excess lubricant always drips from the pressure piston into the die casting machine and heavily contaminates it.
- the lubricant stuck in the casting cylinder under the fill hole burns when the liquid aluminum is poured in, producing a lot of smoke.
- the object of the invention is to provide a lubricating device which avoids the disadvantages mentioned and also uniformly mists the inside wall of the casting cylinder, in particular in the case of long cylinders, with lubricant, the lubricant consumption being able to be greatly reduced compared to previously. Furthermore, the service life of the piston ring and piston as well as the casting cylinder should be increased and gas formation in the casting should be avoided, so that highly stressed safety parts produced with the new casting technology have absolutely no porosity.
- a device according to the preamble of independent claim 1 in that it has a lubricant container for a Liquid oil-based lubricant, the flammable components of which evaporate rapidly at the operating temperatures of the casting cylinder surface and whose incombustible pigments adhere to the casting cylinder surface as a lubricating film, and that it has a control device which controls the supply of the lubricant to a spray device attached to the die casting machine and the atomization serves the same.
- Advantageous embodiments of the subject matter of the invention are listed in the further claims 2 to 10.
- FIG. 1 shows a lubricating device with a spray device in which two spray nozzles are arranged so that they can be moved in and out of the casting cylinder
- FIG. 2 shows a longitudinal section through a further casting cylinder in which the
- FIG. 3a is a longitudinal section through a spray nozzle
- Fig. 3b is a cross section along the line AA through the spray nozzle of Fig. 3a
- Fig. 4 shows a variant of the one shown in Fig. 3 spray nozzle.
- the device shown in FIG. 1 has a lubricant container 1 for liquid lubricant, which is connected to a supply line 2 with a control device 3, into which a control current line 4 and a compressed air line 5 lead.
- the control device 3 is connected via lines 6, 7, 8 and 9 which can be actuated by solenoid valves to a spray device 10 which is held by a rail 12 fastened to the casting cylinder of the die casting machine 11.
- the spray device 10 has a feed pipe 14 which can be moved back and forth by means of a compressed air cylinder • 13 and which is provided with two spray nozzles 15 and 16. so that the spray nozzles can be moved into and out of the casting cylinder 18 through the enlarged filling opening 17 for the liquid aluminum.
- the piston 19 rests with its piston ring 20 at the end of the casting cylinder 18.
- the spray nozzles 15 and 16 which are outside of the casting cylinder 18 during the previous casting cycle are now activated by the control device 3 actuated compressed air line 6 is activated, the compressed air cylinder 13 driving the feed pipe 14 with the spray nozzles 15 and 16 so far that the spray nozzle 16 comes to lie in the longitudinal axis of the casting cylinder 18.
- the transport air is then started by the control device 3 through the compressed air line 7, which exits through the spray nozzle 16, whereupon the control device 3 activates the metering pump (not shown in the drawing) and drives the adjustable amount of lubricant through line 9 by means of one or more metering pulses, the latter is driven by the compressed air to the spray nozzle 16.
- a spray cone 21 emerges from the spray nozzle 16 in the longitudinal axis of the casting cylinder 18 and, atomized by the compressed air, wets the inner surface of the casting cylinder 18. After the lubricant has been atomized, air is further expelled through the spray nozzle 16 through the compressed air line 7.
- Air is then controlled by the compressed air line 8, which exits through the spray nozzle 15 perpendicular to the longitudinal axis of the casting cylinder 18.
- a smaller spray cone 22 atomized by compressed air is produced for wetting the inner surface of the casting cylinder 18 which is not sprayed by the spray cone 21.
- the hot inner surface of the casting cylinder 18 causes vapors which are expelled from the casting cylinder 18 by the compressed air which continues to be supplied through the spray nozzles 15 and 16.
- the incombustible lubricant particles adhering to the inside of the casting cylinder serve to lubricate the piston 19 or piston ring 20 in the casting cylinder 18.
- the control device 3 stops the air supply through the compressed air lines 7 and 8 and by actuating the compressed air cylinder 13 in the opposite direction Spray nozzles 15 and 16 removed from the casting cylinder 18, whereupon the next casting cycle can be carried out.
- the line 9 is advantageously provided with an electric heating device 23 at its end.
- the spray device 10 immovably in the casting cylinder 18.
- the spray nozzle 25 installed in the holder 24 is fastened in the casting cylinder 18 and designed in such a way that it generates an asymmetrical spray cone 26.
- a bore or air supply nozzle 28 arranged approximately in this direction is sufficient for supplying the compressed air and thus for diverting the spray cone 26.
- compressed air supply through a further bore 29 in Piston 19 the spray cone 26 as the spray cone 30 are deflected upward.
- the permanently installed spray device 10 is provided for casting cylinders with a smaller diameter
- the spray nozzle 25 can also be arranged at an angle to the longitudinal axis of the casting cylinder 18 and the air supply nozzle 28 approximately parallel to the longitudinal axis of the casting cylinder 18.
- the angle between spray nozzle 25 and air supply nozzle 28 is advantageously in the range of 90 °.
- the spray nozzle shown in FIGS. 3a and 3b has a hollow cylindrical nozzle body 31 with an external thread 32, which serves to screw the spray nozzle into the feed pipe 14 or into the holder 24.
- a distribution body 33 is shrunk on, which has, for example, eight through bores 34.
- a retaining screw 36 and a spray sink body 37 are screwed into its internal thread 35.
- the spray nozzle body 37 is interchangeable and, depending on its geometric design, it is used to generate different spray cones.
- the retaining screw 36 and the spray sinking body 37 are provided with a center bore 38, which are used to generate an additional jet which effects the stabilization of the spray cone.
- the spray reduction body 37 of which is cut off by a straight boundary surface 39.
- the spray reduction body 37 could also pass through the ring channel 40 between the nozzle body 31 and the distributor body 33 through one or more holes not shown in the drawing through the distributor body 33 and the spray sink body 37 into it Center axis are guided.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH352022002 | 2002-02-28 | ||
| CH3522002 | 2002-02-28 | ||
| PCT/CH2003/000143 WO2003072282A1 (de) | 2002-02-28 | 2003-02-26 | Schmiervorrichtung einer druckgiessmaschine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1478481A1 true EP1478481A1 (de) | 2004-11-24 |
Family
ID=27762107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03742905A Withdrawn EP1478481A1 (de) | 2002-02-28 | 2003-02-26 | Schmiervorrichtung einer druckgiessmaschine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1478481A1 (de) |
| JP (1) | JP2005518942A (de) |
| WO (1) | WO2003072282A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013002743B4 (de) * | 2013-02-19 | 2020-09-03 | Man Diesel & Turbo, Filial Af Man Diesel & Turbo Se, Tyskland | Vorrichtung zur Zylinderschmierung |
| JP7441382B2 (ja) * | 2018-12-20 | 2024-03-01 | 株式会社Prex | 筒状体の内面潤滑装置 |
| CN110405175A (zh) * | 2019-07-11 | 2019-11-05 | 东莞市奥利瓦钢材模具有限公司 | 冲头粉末润滑设备 |
| CN112705579A (zh) * | 2020-12-28 | 2021-04-27 | 河南凤宝重工科技有限公司 | 一种热挤压润滑剂自动喷涂装置及喷涂方法 |
| CN113492203B (zh) * | 2021-06-08 | 2023-03-24 | 无锡市中源汽车零部件制造有限公司 | 一种汽车铝压铸件的生产工艺及其应用和生产系统 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1095899A (en) * | 1964-07-29 | 1967-12-20 | Renault | Automatic lubricating apparatus for an injection piston of a cold-chamber pressure casting machine |
| CH444389A (de) * | 1965-08-09 | 1967-09-30 | Buehler Ag Geb | Kaltkammer-Druckgiessmaschine mit Kolbenschmiervorrichtung |
| US3544355A (en) * | 1967-08-31 | 1970-12-01 | Respond Inc | Shot cylinder lubricating apparatus |
| US4624414A (en) * | 1984-04-13 | 1986-11-25 | Spraying Systems Co. | Deflector type spray nozzle for fire protection and other systems |
| JP2674422B2 (ja) * | 1992-04-29 | 1997-11-12 | 株式会社デンソー | 固体潤滑剤の吹付装置及び吹付方法 |
| WO2001097978A1 (en) * | 2000-06-19 | 2001-12-27 | Eastman Chemical Company | Nozzle apparatus and process for cleaning interior surface of pipes using same |
-
2003
- 2003-02-26 JP JP2003571016A patent/JP2005518942A/ja active Pending
- 2003-02-26 WO PCT/CH2003/000143 patent/WO2003072282A1/de not_active Ceased
- 2003-02-26 EP EP03742905A patent/EP1478481A1/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03072282A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005518942A (ja) | 2005-06-30 |
| WO2003072282A1 (de) | 2003-09-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20040909 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR |
|
| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO |
|
| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: NUNGAESSER, STEPHAN Inventor name: MUELLER, ANDRE |
|
| 17Q | First examination report despatched |
Effective date: 20120402 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20120813 |