EP0820820B1 - Liegende Metallstrangpresse - Google Patents

Liegende Metallstrangpresse Download PDF

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Publication number
EP0820820B1
EP0820820B1 EP97112000A EP97112000A EP0820820B1 EP 0820820 B1 EP0820820 B1 EP 0820820B1 EP 97112000 A EP97112000 A EP 97112000A EP 97112000 A EP97112000 A EP 97112000A EP 0820820 B1 EP0820820 B1 EP 0820820B1
Authority
EP
European Patent Office
Prior art keywords
press
main cylinder
block
pressing method
ram
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
Application number
EP97112000A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0820820A2 (de
EP0820820A3 (de
Inventor
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 Eumuco 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 Eumuco GmbH filed Critical SMS Eumuco GmbH
Publication of EP0820820A2 publication Critical patent/EP0820820A2/de
Publication of EP0820820A3 publication Critical patent/EP0820820A3/de
Application granted granted Critical
Publication of EP0820820B1 publication Critical patent/EP0820820B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B21C33/00—Feeding extrusion presses with metal to be extruded ; Loading the dummy block
    • 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
    • B21C23/21—Presses specially adapted for extruding metal
    • 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
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/211—Press driving devices
    • 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
    • B21C23/21—Presses specially adapted for extruding metal
    • B21C23/218—Indirect extrusion presses

Definitions

  • the classic design of metal extrusion presses shows one a cylinder spar, a counter spar and connecting them, usually four tie rods formed frame, in which one Press stamp for the direct one or a closure piece for the indirect one Pressing spar and a pickup for the to pressing block in the direction of the longitudinal axis of the press are displaceable, while a die on the counter beam direct or a die stamp in the indirect pressing process is supported.
  • the pressing force applied, centrally located plunger next to Auxiliary piston provided for the return stroke and the transducer movement and only for very large pressing forces are several pistons and Cylinder provided.
  • This press is designed as a so-called “rear loader” where the counter beam with a breakthrough in the middle Press axis is provided through which the block to be pressed is pushed (loaded) into the transducer and it is the Counter beam with a one die in the direct or one Sealing disc in the indirect pressing process in the Provide slider for the press axis.
  • the pressed strand occurs in the direct pressing process through the die and Breakthrough in the counter beam, while in the indirect Pressing the strand through the opposite direction Die stamp and a corresponding breakthrough in Cylinder spar emerges so that on both sides of the press Spouts must be provided if the press is for both Pressing process should be used.
  • the press so far against the cylinder spar to set up that the counter beam instead of a die or Locking disc with a die stamp and the cylinder spar can be provided with a washer so that the Strand can always exit through the opening in the counter beam.
  • this press now no longer as a “rear loader” but as a “front loader” inserting the blocks into the press axis from the side forth, namely near the counter beam when pressing directly and close the cylinder spar during indirect pressing, so that for the loader, which must be displaceable in the direction of the press axis entire area on one side of the press is needed, in which there is a significant disadvantage of this arrangement.
  • the invention relates to a metal extrusion press the latter, closer in the preamble of claim 1 outlined design, with the task of training and arrangement of the loading device in the known presses to fix given disadvantage.
  • the frameless metal extrusion press shown has one Cylinder beam 21 and a counter beam 22.
  • the press axis are movably supported cylinder spar 21
  • four master cylinders 23 concentrically distributed evenly arranged to the press axis.
  • the in the master cylinders 23 guided pistons 24 are on both sides with piston rods 25 and 26 provided, of which the piston rods 25 with the stationary arranged counter beam 22 are connected.
  • the master cylinder 23 are of cylinder bottoms or covers opposite the Piston rods 25 and 26 of the same diameter sealed, see above that on both sides of the pistons 24 cylinder spaces 23a and 23b result in the same effective area.
  • auxiliary piston-cylinder units 30 Piston rods 30a are connected to the block receiver 28.
  • the auxiliary piston-cylinder units 30 are used for contact pressure of the block receiver 28 to the die 29 when pressing a Block, for depositing the block pickup 28 from the die 29 when cutting off the press residue and with appropriate dimensioning also for further displacement of the block receiver 28.
  • the displacement of the cylinder spar 21 to the working stroke takes place corresponding to the pressing of a block relative to the strand slowly by acting on the pistons 24 from the cylinder spaces 23a via the pressure oil supply lines 31 while that from the Cylinder spaces 23b displaced oil discharged via lines 32 is in an oil tank 33.
  • Auxiliary piston-cylinder units 34 provided the double-acting and can be acted upon accordingly.
  • the press is set up for the direct pressing process and Figures 5 to 7 at setup the press for the indirect pressing process.
  • the four master cylinders combined in a cylinder spar 21 are at both ends with guide bushes 38 and sealing rings 39 for the same diameter piston rods 25 and 26 provided, according to the given distance of Guide bushings 38 stable at the ends of the master cylinder 23
  • Guides of the pistons 24 with their piston rods 25 and 26 result, which are thus suitable, the tie rods (columns) of to replace the classic frame design of the presses.
  • the cylinder spar 21 is transverse with one in guides 40 to the press axis movable holder designed as a slide 41 provided which is actuated by a piston-cylinder unit 42 becomes.
  • the holder 41 carries the ram 27 and is in Sliding direction offset with a stamp Through hole 43 provided which alternates with the Ram 27 can be inserted into the press axis, so that a press block is loaded through this through hole 43 can be, as shown in Figures 3 and 4.
  • the Counter spar 22 is provided with a die changing device 44 provided, which is displaceable transversely to the press axis and with Receptacles 45 for replaceable dies 29 is provided.
  • FIG 3 is also the loading one for pressing shown pending block, which simultaneously with the Removal of the press residue takes place.
  • the holder 41 in the position where the through hole 43 located in the press axis.
  • a bridge piece 46 between the transducers 28 and the through hole 43 introduced in the holder 41.
  • a block transport 47 is a block to be pressed into the Space between the cylinder spar 21 and the support spar 37 to in the press axis spent.
  • FIG. 4 Another way of loading one for crimping Figure 4 shows the next block, saving one Liftable and lowerable bridge piece is the transducer 28 of the Piston-cylinder unit 30 slidably in front of the holder 41 after the ram 27 from the holder 41 so far has been moved laterally so that it is outside the driving range of the pickup 28 and the through hole 43 in the holder 41st lies in the press axis.
  • the block transport 47 in the space between cylinder spar 21 and support spar 37 in the Press axis introduced by the block Push-in / piston rod 48 of the piston-cylinder unit 49 through the opening 50 in the cylinder spar 21 and the through hole 43 pushed into the bore of the sensor 28 in the holder 41.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)
EP97112000A 1996-07-24 1997-07-15 Liegende Metallstrangpresse Expired - Lifetime EP0820820B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19629854A DE19629854C1 (de) 1996-07-24 1996-07-24 Liegende Metallstrangpresse
DE19629854 1996-07-24

Publications (3)

Publication Number Publication Date
EP0820820A2 EP0820820A2 (de) 1998-01-28
EP0820820A3 EP0820820A3 (de) 2003-08-20
EP0820820B1 true EP0820820B1 (de) 2004-12-22

Family

ID=7800698

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97112000A Expired - Lifetime EP0820820B1 (de) 1996-07-24 1997-07-15 Liegende Metallstrangpresse

Country Status (3)

Country Link
EP (1) EP0820820B1 (ja)
JP (1) JPH1080717A (ja)
DE (2) DE19629854C1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114472573A (zh) * 2022-02-23 2022-05-13 江苏启力锻压机床有限公司 一种汽车空气悬挂活塞筒挤压成形方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2189699A (en) * 1998-11-20 2000-06-13 Saso Nastevski Extrusion press for metals
IT1391753B1 (it) * 2008-11-03 2012-01-27 Danieli Off Mecc Apparato e procedimento di comando della movimentazione del contenitore in una pressa per estrusione
DE102015116002B4 (de) * 2015-09-22 2019-08-29 Sms Group Gmbh Strangpresse
DE102018113910A1 (de) * 2018-06-11 2019-12-12 Moog Gmbh Strangpresse mit elektrohydrostatischen Steuersystem

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103529A (en) * 1976-02-09 1978-08-01 Sutton Engineering Company Extrusion press for direct and indirect extruding with die shifter
US4379398A (en) * 1980-06-12 1983-04-12 Kabushiki Kaisha Kobe Seiko Sho Pull-back type indirect extrusion press
US4463589A (en) * 1981-08-22 1984-08-07 Kabushiki Kaisha Kobe Seiko Sho Indirect extrusion press
IT1197936B (it) * 1986-10-31 1988-12-21 Innocenti Santeustacchio Spa Pressa ad estrusione orizzontale

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114472573A (zh) * 2022-02-23 2022-05-13 江苏启力锻压机床有限公司 一种汽车空气悬挂活塞筒挤压成形方法
CN114472573B (zh) * 2022-02-23 2022-12-30 江苏启力锻压机床有限公司 一种汽车空气悬挂活塞筒挤压成形方法

Also Published As

Publication number Publication date
EP0820820A2 (de) 1998-01-28
EP0820820A3 (de) 2003-08-20
JPH1080717A (ja) 1998-03-31
DE59712125D1 (de) 2005-01-27
DE19629854C1 (de) 1997-07-24

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