EP1484122B1 - Verfahren zur Bestimmung der Strangaustrittsgeschwindigkeit von Strangpressprofilen und Vorrichtung zur Durchführung des Verfahrens - Google Patents
Verfahren zur Bestimmung der Strangaustrittsgeschwindigkeit von Strangpressprofilen und Vorrichtung zur Durchführung des Verfahrens Download PDFInfo
- Publication number
- EP1484122B1 EP1484122B1 EP04012081A EP04012081A EP1484122B1 EP 1484122 B1 EP1484122 B1 EP 1484122B1 EP 04012081 A EP04012081 A EP 04012081A EP 04012081 A EP04012081 A EP 04012081A EP 1484122 B1 EP1484122 B1 EP 1484122B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extrusion
- die
- extruded profile
- measuring device
- extruded
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000001125 extrusion Methods 0.000 claims abstract description 64
- 238000005259 measurement Methods 0.000 claims description 20
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000000691 measurement method Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000861 Mg alloy Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C31/00—Control devices, e.g. for regulating the pressing speed or temperature of metal; Measuring devices, e.g. for temperature of metal, combined with or specially adapted for use in connection with extrusion presses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C23/00—Extruding metal; Impact extrusion
- B21C23/02—Making uncoated products
- B21C23/04—Making uncoated products by direct extrusion
- B21C23/08—Making wire, bars, tubes
- B21C23/12—Extruding bent tubes or rods
Definitions
- the present invention relates to a method for determination the strand exit velocity of, in particular with variable radii of curvature curved extruded profiles an extrusion device, according to the preamble of the claim 1. Furthermore, the invention relates to a device to carry out the method according to the preamble of Patent claim 8.
- Conventional extrusion devices generally include an extrusion tool holder received in a cassette holder and a received in the extrusion tool holder Extrusion die.
- the extrusion tool is equipped with a die which emerges with a die downstream Matrizenmaul in the form of an opening cone is provided. If hollow sections are to be pressed, the die is also preceded by a mandrel part. Still within the extrusion tool holder is the die, more specifically the die mouth, usually followed by a backing, which against a recorded in a counter-member pressure plate supports, from which finally the pressed extruded profile emerges in the desired profile shape.
- the control of an extrusion process or further processing a pressed extruded profile depends significantly from the exit velocity of an extruded profile the extrusion press.
- a measurement of the actual Exit velocity of an extruded profile is Consequently, an essential prerequisite for compliance with exact Component geometries.
- CH 507752 describes a directly occurring in the pressing tool Temperature measurement and DE 4210031 A1 a method for non-contact optical length measurement of materials with fluctuating Thickness.
- a direct measurement method is the exit velocity an extruded profile relative to the preference given to indirect measuring methods. It is from the patent GB 563893 discloses the exit velocity of a Extruded profiles by an extruded profile in To measure the press flow applied friction wheel directly. in this connection is applied to the extruded friction wheel by the Friction between friction wheel and extruded profile set in rotation, wherein from the number of revolutions of the friction wheel per Time unit, the exit velocity of the extruded profile is determined from the extrusion device.
- the friction wheel for a sufficient Friction between friction wheel and metal extruded profile with a sufficient compressive force against the extruded profile has to be pressed so that when that's still hot generally soft, metallic extruded profile an impression through the friction wheel is likely.
- the friction wheel on the other hand with a lower pressure force against the extruded profile pressed there may be a slip between the friction wheel and metallic extruded profile can no longer be excluded, thus resulting in an undesirable measurement error can.
- the friction wheel is through the still hot extruded profile exposed to heavy wear in the press flow and must be replaced accordingly frequently, resulting in undesirable Way to business interruptions and expensive downtime the extrusion press leads.
- a non-contact laser measuring method for measuring the exit velocity of the Extruded profiles considered in the press flow is a laser Doppler frequency measuring device, in which the light of a laser diode in an optoacoustic Modulator (Bragg cell) in two partial beams is split.
- the sub-beams is also a specific Frequency shift, for example, 40 MHz imposed.
- the Both partial beams become symmetrical to the measuring direction an opposite angle to a surface of the measured Extruded profiles directed and brought there to overlay.
- This object is achieved by a method for determining the strand exit velocity of, in particular with variable radii of curvature curved, extruded profiles from an extrusion device, which one in a Cartridge holder received extrusion tool holder and a received in the extrusion tool holder Extrusion die, which extrusion die a die arranged with a behind a Matrizenaustrittsebene Matrizenmaul, and one of the Matrizenmaul downstream backing comprising which method is characterized that the extrusion speed of the extruded profile within of the extrusion tool behind the die exit plane by means of a measuring device for carrying out a contactless Measuring method is measured.
- the Extrusion speed of the extruded profile in the die mouth measured.
- the measuring direction of the measuring device for performing the non-contact speed measurement essentially aligned perpendicular to the surface of the extruded profile is. If the extrusion tool is not parallel to the Press axle is mounted, i.
- the extruded profile to the measuring direction of an established Measuring device has sloping surfaces, or with provided with different crowns, so it may be advantageous be when the measuring direction is substantially perpendicular to an edge of an extruded profile is directed.
- a preferred non-contact measuring method for measuring the Exit velocity (tangential surface velocity) of the extruded profile is the aforementioned laser Doppler frequency velocity measurement by means of a laser Doppler frequency velocity measuring device.
- extruded profiles come from a Light metal material, in particular of aluminum or magnesium or aluminum or magnesium alloys, which curved with a, in particular variable radius of curvature become.
- the invention relates to a device, which for Implementation of the method described above used which is a tool holder received in a cassette holder, a received in the extrusion tool holder Extrusion die, which extrusion die a Die with a arranged behind a Matrizenaustrittsebene Matrizenmaul, and one of the Matrizenmaul downstream Supplement covers and characterized in that the Device with mutually aligned through holes through cassette holder, extrusion tool holder and Matrizenmaul or backing is provided.
- the inventive arrangement for Implementation of the method according to the invention is part of a Extrusion device with the press axis 7.
- the pressing direction the extrusion device is in the drawing in the arrow direction indicated from right to left.
- the arrangement comprises a recorded in a cassette slide 4 extrusion tool holder 5. Inside the extrusion die holder 5, a die 2 is received with upstream mandrel part 3. Downstream of the die exit plane 8 is the Die mouth 9, which widens in a generally cone-shaped (here to simplify the drawing without cone-shaped Expansion shown). Further, the Matrizenmaul 9 is the Deposit 1 downstream.
- the die 2 is at a die pitch angle ⁇ to the press axis 7 installed.
- the Matrizenne Trentswinkel ⁇ is in the embodiment shown 90 °, d. H. the exit level 8 of the die 2 is perpendicular to the press axis 7 of the Plodder.
- the cassette slide 4 For measuring the tangential surface velocity (i.e. Exit speed) of the extruded profile are the cassette slide 4, the extrusion tool holder 5 and the Matrizenmaul 9 with cursing arranged through holes 12, 13, 14 provided.
- a laser Doppler frequency velocity measuring device 6 is used to measure the exit velocity of the extruded profile.
- the two partial beams 15, 16 of the laser Doppler frequency velocity measuring device 6 pass through the alignment arranged through holes 12, 13, 14 and meet in Matrizenmaul 9 the extruded profile. From the surface of the extruded profile reflected, the reflected laser beams 17 arrive back into the laser Doppler frequency velocity measuring device 6 for determining the tangential surface velocity (Exit velocity) of the extruded profile.
- the measuring direction of the laser Doppler frequency velocity measuring device 6 takes one to Matrizenne Trentswinkel ⁇ same measurement angle ⁇ to the press axis 7, which in the embodiment shown is 90 °, so that a optimal measurement of the tangential surface speed of the extruded profile is guaranteed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Optical Radar Systems And Details Thereof (AREA)
- Metal Extraction Processes (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Description
- Fig. 1
- zeigt einen Längsschnitt in der Pressachse durch eine erfindungsgemäße Anordnung innerhalb einer Strangpressvorrichtung zur Durchführung des erfindungsgemäßen Verfahrens.
Claims (9)
- Verfahren zur Bestimmung der Strangaustrittsgeschwindigkeit von, insbesondere mit variablen Krümmungsradien gekrümmten, Strangpressprofilen aus einer Strangpressvorrichtung, wobei die Strangpressgeschwindigkeit des Strangpressprofils mittels einer Messvorrichtung (6) zur Durchführung eines berührungslosen Messverfahrens gemessen wird, dadurch gekennzeichnet, das die Strangpressvorrichtungeine in einem Kassettenhalter (4) aufgenommene Strangpresswerkzeughalterung (5),ein in der Strangpresswerkzeughalterung (5) aufgenommenes Strangpresswerkzeug, welches Strangpresswerkzeug eine Matrize (2) mit einem hinter einer Matrizenaustrittsebene (8) angeordneten Matrizenmaul (9), und eine dem Matrizenmaul (9) nachgeschaltete Hinterlage (1) umfasst, umfasst und dass die Strangpressgeschwindigkeit des Strangpressprofils innerhalb des Strangpresswerkzeugs hinter der Matrizenaustrittsebene (8) gemessen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Strangpressgeschwindigkeit des Strangpressprofils im Matrizenmaul (9) gemessen wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Strangpressgeschwindigkeit des Strangpressprofils in der Hinterlage (1) gemessen wird.
- Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass eine Messrichtung der Messvorrichtung (6) zur Durchführung eines berührungslosen Messverfahrens im wesentlichen senkrecht zur Oberfläche des Strangpressprofils ausgerichtet wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, dass die Messrichtung der Messvorrichtung (6) im wesentlichen senkrecht auf eine Kante eines Strangpressprofils ausgerichtet wird.
- Verfahren nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass bei einem Strangpresswerkzeug, bei welchem die Matrizenaustrittsebene (8) einen von 90° verschiedenen Winkel α zur Pressachse (7) einnimmt, die Messrichtung der Messvorrichtung (6) nach dem gleichen Winkel α zur Pressachse (7) ausgerichtet wird.
- Verfahren nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Strangpressgeschwindigkeit des Strangpressprofils mittels einer Laser-Dopplerfrequenz-Geschwindigkeitsmessvorrichtung gemessen wird.
- Vorrichtung zur Durchführung des Verfahrens nach einem der vorhergehenden Ansprüche, welche eine in einem Kassettenhalter (4) aufgenommene Werkzeughalterung (5), ein in der Strangpresswerkzeughalterung (5) aufgenommenes Strangpresswerkzeug, welches Strangpresswerkzeug eine Matrize (2) mit einem hinter einer Matrizenaustrittsebene (8) angeordneten Matrizenmaul (9), und eine dem Matrizenmaul (9) nachgeschalteten Hinterlage (1) umfasst, umfasst, dadurch gekennzeichnet, dass die Vorrichtung mit zueinander fluchtend angeordneten Durchgangsbohrungen (12, 13, 14) durch Kassettenhalter 4, Strangpresswerkzeughalterung (5) und Matrizenmaul (9) oder Hinterlage (1), und mit einer Messvorrichtung (6) zur Durchführung einer berührungslosen Geschwindigkeitsmessung durch die fluchtend angeordneten Durchgangsbohrungen (12, 13, 14) hindurch versehen ist.
- Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, dass bei einem Strangpresswerkzeug, bei welchem die Matrizenaustrittsebene (8) einen von 90° verschiedenen Winkel α zur Pressachse (7) einnimmt, die Fluchtrichtung der zueinander fluchtend angeordneten Durchgangsbohrungen (12, 13, 14) durch Kassettenhalter (4), Strangpresswerkzeughalterung (5) und Matrizenmaul (9) oder Hinterlage (1) den gleichen Winkel α zur Pressachse (7) einnimmt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10325469A DE10325469B3 (de) | 2003-06-05 | 2003-06-05 | Verfahren zur Bestimmung der Strangaustrittsgeschwindigkeit von Strangpressproffilen und Vorrichtung zur Durchführung des Verfahrens |
DE10325469 | 2003-06-05 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1484122A2 EP1484122A2 (de) | 2004-12-08 |
EP1484122A3 EP1484122A3 (de) | 2005-01-05 |
EP1484122B1 true EP1484122B1 (de) | 2005-11-16 |
Family
ID=33103680
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04012081A Expired - Lifetime EP1484122B1 (de) | 2003-06-05 | 2004-05-21 | Verfahren zur Bestimmung der Strangaustrittsgeschwindigkeit von Strangpressprofilen und Vorrichtung zur Durchführung des Verfahrens |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1484122B1 (de) |
AT (1) | ATE309872T1 (de) |
DE (2) | DE10325469B3 (de) |
DK (1) | DK1484122T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013220366A1 (de) * | 2013-10-09 | 2015-04-09 | Mahle International Gmbh | Dosieranlage |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109821928B (zh) * | 2019-03-29 | 2023-10-24 | 江苏亚太轻合金科技股份有限公司 | 一种反向挤压无缝铝型材挤压间隙测量装置 |
CN113600632A (zh) * | 2021-06-26 | 2021-11-05 | 中国重型机械研究院股份公司 | 一种挤压筒排气装置及使用方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB563893A (en) * | 1943-02-26 | 1944-09-04 | Loewy Eng Co Ltd | Improvements in and relating to the measurement of the feed or delivery speeds of moving materials |
US2863557A (en) * | 1952-02-15 | 1958-12-09 | Munker Theodor | Apparatus whitch controls temperature and speed of extruded product |
GB1087467A (en) * | 1964-05-06 | 1967-10-18 | Decca Ltd | Improvements in or relating to the controlling of industrial processes |
CH507752A (de) * | 1970-07-03 | 1971-05-31 | Alusuisse | Vorrichtung zum kontinuierlichen Messen der Temperatur des beim Profil- und Rohrstrangpressen fliessenden Metalls |
DE4210031A1 (de) * | 1992-03-27 | 1993-09-30 | Eyetec Gmbh | Berührungslose optische Längenmessung von Materialien mit schwankender Dicke |
DK46492A (da) * | 1992-04-06 | 1993-10-07 | Torben Bredal | Fremgangsmaade ved ekstrudering af profiler af metal eller formstof samt apparat til brug ved udoevelse af fremgangsmaaden |
-
2003
- 2003-06-05 DE DE10325469A patent/DE10325469B3/de not_active Expired - Fee Related
-
2004
- 2004-05-21 AT AT04012081T patent/ATE309872T1/de not_active IP Right Cessation
- 2004-05-21 EP EP04012081A patent/EP1484122B1/de not_active Expired - Lifetime
- 2004-05-21 DE DE502004000135T patent/DE502004000135D1/de not_active Expired - Lifetime
- 2004-05-21 DK DK04012081T patent/DK1484122T3/da active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013220366A1 (de) * | 2013-10-09 | 2015-04-09 | Mahle International Gmbh | Dosieranlage |
Also Published As
Publication number | Publication date |
---|---|
DE502004000135D1 (de) | 2005-12-22 |
EP1484122A2 (de) | 2004-12-08 |
DK1484122T3 (da) | 2006-03-27 |
EP1484122A3 (de) | 2005-01-05 |
DE10325469B3 (de) | 2004-11-04 |
ATE309872T1 (de) | 2005-12-15 |
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