EP2773471A1 - Presse d'extrusion de tubes ou de barres métalliques - Google Patents

Presse d'extrusion de tubes ou de barres métalliques

Info

Publication number
EP2773471A1
EP2773471A1 EP12788438.5A EP12788438A EP2773471A1 EP 2773471 A1 EP2773471 A1 EP 2773471A1 EP 12788438 A EP12788438 A EP 12788438A EP 2773471 A1 EP2773471 A1 EP 2773471A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
plunger
pressing
piston
press
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
Application number
EP12788438.5A
Other languages
German (de)
English (en)
Other versions
EP2773471B1 (fr
Inventor
Karl Herrmann CLAASEN
Uwe Muschalik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
Original Assignee
SMS Meer GmbH
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 SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP2773471A1 publication Critical patent/EP2773471A1/fr
Application granted granted Critical
Publication of EP2773471B1 publication Critical patent/EP2773471B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/217—Tube extrusion presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00—Extruding metal; Impact extrusion
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/211—Press driving devices

Definitions

  • the invention relates to a strand and tube press or metal extrusion press, which has a consisting of a cylinder spar and associated counter frame press frame in which a movable, a block receiver carrying block pickup holder and a movable stamping Traverse are provided, wherein in the cylinder spar a main or pressing cylinder is arranged, which receives in its cylinder housing at its front, supported by the stamping Traverse end provided with a ram pressing piston, and in which connected to a tank line cylinder housing a plunger hydraulic oil by means of a mounted on a rear end of the plunger rods slide plate is associated with supplying expansion tank, wherein the extending in the expansion tank linkage is connected to a arranged in the pressing direction behind the slide plate hydraulic supply.
  • An extruder of this type in which the tool, usually pressure plate, die holder and die, having counter-spar is connected via tie rods or tension plates and pressure supports with the cylinder spar, has become known from DE 102 27 488 B3.
  • a metal extrusion press is known with an expansion tank attached to the pressure oil supply of the plunger or plunger to the main cylinder.
  • the rod carrying the slide plate is formed with a forward and retraction cylinder and a fixed outside of the end or rear wall of the surge tank hydraulic connection block. The ends of the rod end are arranged on the rod end remote from the master cylinder housing.
  • CONFIRMATION COPY Nete slide plate slides in the expansion tank, wherein the end of the slide plate closed filling space is connected via connecting lines to the lying behind the plunger cylinder chamber of the master cylinder housing into which also opens a pressure oil line.
  • the non-productive times must be minimized, in particular, the idler and the side of the cylinder associated with the Blockaufrichhalter, in which the block receiver or recipient is arranged, and the stamping cross member or strut idling and retreat with the highest possible speeds can handle.
  • the rod designed as a forward and return cylinder is assigned switchable shut-off valves in the connecting lines leading from the filling chamber of the expansion tank to the cylinder space behind the plunger and formed in the cylinder housing bottom.
  • this open with check valves, of which four are present designed as two-way cartridge valves, which are also known as logic or cartridge valves, from which from the filling of the Equalizing tank supplied oil is lapped.
  • the oil Upon completion of the pressing stroke and then initiated with appropriate reversal of the hydraulic unit backward movement of the plunger into its initial position in the cylinder housing, the oil then flows back into the balancing cylinder, ie the oil is pushed back and forth under pressure during operation of the tube and extruder.
  • the coping with large volume flows is to be achieved by providing two or more plungers of the same diameter with piston rods passing through the cylinder on both sides and sealing the two piston rods against the cylinders, Cylinder compartments of the same effective area exist on both sides, which are connected to each other by a short-circuit line which can be closed by a switchable shut-off valve for fast return stroke and fast-forward flow in this press
  • Special piston-cylinder units are provided Partial spaces on both sides of the plunger connecting short circuit line is a faster transition of the oil from one to the other cylinder subspace with low flow resistance possible, the short-circuit lines and arranged in these switchable check valves however, require a large sizing.
  • the invention is therefore an object of the invention to provide a strand and tube press or metal extruder of the type mentioned without the disadvantages described, in particular, should reduce the hydraulic effort and shorten the non-productive times with a more compact, simpler design.
  • This object is achieved in that the linkage is designed with an integrated in the transition from the reservoir to the master cylinder, the local inner diameter of the cylinder housing adapted, in the opening function a large annular area cross-section releasing filling valve is formed.
  • the displacement or ancestor and retraction of the guided in the master cylinder housing preferably with hydrostatic bearing plunger can thus be carried out very quickly, so that can shorten the non-productive times for the delivery of the plunger and Blockaufrichhalters.
  • the amount of hydraulic oil still required after the delivery for pressing the charged block to produce an extruded product can preferably be supplied from a tank or other pressure medium supply into the pressure chamber of the cylinder housing behind the plunger. When a tank is interposed, only a significantly lower pendulum volume is required.
  • a preferred embodiment of the invention provides that the filling valve consists of a filling valve cover, which is arranged on the linkage via a collar-like sliding bushing, and an annular bushing surrounding the bushing in the pressing direction behind the valve cover, the cylinder piston depending on the loaded with hydraulic oil piston side the sliding bush and thus brings the valve cover either in the closed position or in the open position.
  • the filling valve is integrated in the cylinder housing of a press frame, in which the stamping crosshead and the block pickup holder are driven by means of electric motors, preferably servomotors.
  • the very large, free flow cross-section of the filling valve makes this particularly suitable for operation of the tube and extruder with on the one hand switched servomotor drives for moving stamping post and Blockaufrichhalter and on the other hand for applying the required high compression and in particular pressing force during compression of the block an extrusion product. For pressing operation so that only a significantly reduced hydraulics is needed. It is within the scope of the possibilities that can be achieved by the use of regenerative power units from the braking energy of the electro-hydraulic drive units energy conservation.
  • Figure 1 is a perspective view as a detail of a strand and tube press or metal extrusion press frame with arranged therein stamping Traverse and Blockaufrichhalter.
  • Fig. 2 is a partially sectioned view of the rear end of a strand and tube press, without cylinder spar and without stamp crosspiece and
  • Fig. 3 as a detail of Fig. 2 in a cross section integrally arranged in the cylinder housing of the master cylinder in the transition to the expansion tank filling valve.
  • the base frame is shown in Fig. 1 substantially.
  • This consists of a cylinder spar 2 and thus a tensioned on tension blades 3, not shown here, at the end of the tension blades 3 only indicated by the reference numeral 4 counter-spar.
  • pressure supports 5 which enclose the tension blades 3 between the cylinder spar 2 and the counter-spar 4.
  • the pressure supports 5 are also still used to guide receiving a movable in the base frame stamping Traverse 6 and a movable Blocketzillonhalters 7.
  • a surge tank 15 At the rear end of the cylinder housing 9 of the cylinder spar 2 is a surge tank 15 and at its end or rear wall 16, a cylinder unit or a hydraulic connection block 17 is screwed, the latter for example, as known from EP 1 526 930 B1.
  • the strand and tube press 1 instead of with electric motors 12, 13 for the traversing and advancing movements of the stamping traverse 6 and the Blockaufrichhalters 7 with known, hydraulically actuated side cylinders and Auf restructuringverschiebezylindern be equipped.
  • the strand and tube press 1 instead of with electric motors 12, 13 for the traversing and advancing movements of the stamping traverse 6 and the Blockaufrichhalters 7 with known, hydraulically actuated side cylinders and Auf restructuringverschiebezylindern be equipped.
  • Block receiver 8 loaded block has the plunger 11 a ram 18th
  • a central filling valve 19 is formed, which consists of a large-scale valve cover 20 and a ring cylinder 21 for Gearventilbetuschist.
  • the filling valve shown in Fig. 3 as an enlarged detail 19 is mounted on a at the rear end of the plunger 11, extending into the surge tank 15 and there a slide plate 22 supporting linkage 23 with the interposition of a collar-like sliding sleeve 24, on which also the ring cylinder 21st sits, arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Actuator (AREA)
  • Extrusion Of Metal (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne une presse d'extrusion de tubes ou de barres métalliques (1) qui présente un bâti de presse, composé d'une colonne cylindrique (2) et d'une contre-colonne (4) reliée à celle-ci, dans lequel il est prévu un support de chargeur de billette (7) mobile et portant un chargeur de billette (8) ainsi qu'une traverse porte-poinçon (6) mobile. Un cylindre principal ou de presse est disposé dans la colonne cylindrique (2) et reçoit dans son boîtier cylindrique (9) un piston de presse (11) muni, à son extrémité avant soutenue par la traverse porte-poinçon (6), d'un poinçon de presse (18). Un réservoir d'équilibrage (15) alimentant le piston de presse (11) en liquide hydraulique au moyen d'une plaque coulissante (22) prévue sur une tige (23) fixée à l'extrémité arrière du piston de presse (11) est associé au boîtier cylindrique (9) qui est relié à une conduite de réservoir, la tige (23) qui s'étend dans le réservoir (15) étant reliée à une alimentation hydraulique disposée, dans le sens de compression (14), derrière la plaque coulissante (22). Pour une telle presse d'extrusion, la dépense hydraulique considérable et en particulier les temps morts doivent être diminués, respectivement raccourcis, de manière décisive en conservant une structure simple et compacte. Selon l'invention, la tige (23) est réalisée avec une soupape de remplissage (19) qui est intégrée dans la jonction du réservoir (15) par rapport au cylindre principal, qui est adaptée au diamètre intérieur du boîtier cylindrique (9) et qui libère une grande section de surface annulaire dans la fonction d'ouverture.
EP12788438.5A 2011-10-31 2012-10-31 Presse d'extrusion de tubes ou de barres métalliques Active EP2773471B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011117275 2011-10-31
PCT/EP2012/004554 WO2013064251A1 (fr) 2011-10-31 2012-10-31 Presse d'extrusion de tubes ou de barres métalliques

Publications (2)

Publication Number Publication Date
EP2773471A1 true EP2773471A1 (fr) 2014-09-10
EP2773471B1 EP2773471B1 (fr) 2016-03-23

Family

ID=47216189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12788438.5A Active EP2773471B1 (fr) 2011-10-31 2012-10-31 Presse d'extrusion de tubes ou de barres métalliques

Country Status (9)

Country Link
US (1) US10166585B2 (fr)
EP (1) EP2773471B1 (fr)
JP (1) JP5921702B2 (fr)
KR (1) KR101557132B1 (fr)
CN (1) CN103906585B (fr)
ES (1) ES2570328T3 (fr)
PL (1) PL2773471T3 (fr)
RU (1) RU2569008C1 (fr)
WO (1) WO2013064251A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014100444B4 (de) * 2014-01-16 2017-06-29 MAQUET GmbH Vorrichtung zum linearen Verschieben einer Patientenlagerfläche und Verfahren zur Montage einer derartigen Vorrichtung
DE102014209685B3 (de) * 2014-05-21 2015-10-22 Sms Meer Gmbh Strangpresse mit Hydraulikantrieb
US10507504B2 (en) 2015-06-12 2019-12-17 Ube Machinery Corporation, Ltd. Hybrid extrusion press
LU92917B1 (de) * 2015-12-17 2017-06-19 Sms Group Gmbh Strang- und Rohrpresse bzw. Metallstrangpresse
CN105583248B (zh) * 2015-12-17 2018-08-24 黎永伦 多级推棒器
CN105598197A (zh) * 2016-03-22 2016-05-25 中国重型机械研究院股份公司 反向双动挤压机刚度增强装置
KR101844007B1 (ko) * 2016-06-30 2018-03-30 (주)유성 투입부하저감장치가 구비되는 연료투입장치
CN114850277B (zh) * 2022-05-24 2023-10-20 嘉兴巨盈金属制品有限公司 一种轴套类零件加工用液压机及加工工艺
CN115156328B (zh) * 2022-07-25 2024-07-16 宁波信豪铝业有限公司 铝型材的低温高速挤压成型设备

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Publication number Priority date Publication date Assignee Title
US3182479A (en) * 1961-11-07 1965-05-11 Loewy Eng Co Ltd Extrusion press with twin containers
GB1094132A (en) * 1964-02-27 1967-12-06 Loewy Eng Co Ltd Hydraulic press
DE2419709B2 (de) * 1974-04-24 1976-09-02 Schloemann-Siemag AG, 4000 Düsseldorf Presstempelhalterung an einer metallstrangpresse
DE2704652A1 (de) * 1977-02-04 1978-08-17 Schloemann Siemag Ag Anordnung zur dornhubbegrenzung bei metallstrang- und rohrpressen
JPH03114611A (ja) * 1989-09-29 1991-05-15 Ube Ind Ltd 押出プレス
SU1827880A1 (ru) * 1990-02-08 1996-11-10 Производственное объединение "Коломенский завод тяжелого станкостроения" Гидравлический экструзионный пресс
IT1262612B (it) 1993-04-29 1996-07-04 Profilato tubolare da impiegare nella costruzione di pavimenti, in particolare per porcilaie.
AT404640B (de) * 1994-02-18 1999-01-25 Engel Gmbh Maschbau Verfahren zum betätigen der schliesseinrichtung einer zweiplatten-spritzgiessmaschine
JP3114611B2 (ja) 1996-03-28 2000-12-04 日本電気株式会社 半導体記憶装置
DE19629853A1 (de) 1996-07-24 1998-01-29 Sms Schloemann Gmbh Antriebsanordnung für eine Metallstrangpresse
ES2153228T3 (es) * 1998-08-07 2001-02-16 Sms Eumuco Gmbh Prensa de extrusion de lingotes metalicos, compuesta de varios cilindros.
DE10227488B3 (de) * 2002-06-19 2004-02-12 Sms Eumuco Gmbh Strang-und Rohrpresse
DE10236297A1 (de) 2002-08-08 2004-02-19 Sms Eumuco Gmbh Haupt- bzw. Preßzylinder einer Rohr- und Strangpresse
CN2805966Y (zh) * 2005-05-24 2006-08-16 崔锋 350吨焊锡丝挤压机
CN100577317C (zh) * 2008-07-10 2010-01-06 周家镳 合金钢卧式反向挤压机
CN102652040B (zh) * 2009-12-14 2015-05-20 宇部兴产机械株式会社 挤压机

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Title
See references of WO2013064251A1 *

Also Published As

Publication number Publication date
US20150290690A1 (en) 2015-10-15
ES2570328T3 (es) 2016-05-17
JP2014532564A (ja) 2014-12-08
CN103906585A (zh) 2014-07-02
WO2013064251A1 (fr) 2013-05-10
KR101557132B1 (ko) 2015-10-02
US10166585B2 (en) 2019-01-01
JP5921702B2 (ja) 2016-05-24
RU2569008C1 (ru) 2015-11-20
KR20140024052A (ko) 2014-02-27
PL2773471T3 (pl) 2016-11-30
CN103906585B (zh) 2015-11-25
EP2773471B1 (fr) 2016-03-23

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