EP1103315B1 - Strangpresse bzw. Rohr- und Strangpresse - Google Patents

Strangpresse bzw. Rohr- und Strangpresse Download PDF

Info

Publication number
EP1103315B1
EP1103315B1 EP00121069A EP00121069A EP1103315B1 EP 1103315 B1 EP1103315 B1 EP 1103315B1 EP 00121069 A EP00121069 A EP 00121069A EP 00121069 A EP00121069 A EP 00121069A EP 1103315 B1 EP1103315 B1 EP 1103315B1
Authority
EP
European Patent Office
Prior art keywords
knife
die
blade
ram
cutter
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
EP00121069A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1103315A2 (de
EP1103315A3 (de
Inventor
Heinrich Ziemons
Franz Schall
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 EP1103315A2 publication Critical patent/EP1103315A2/de
Publication of EP1103315A3 publication Critical patent/EP1103315A3/de
Application granted granted Critical
Publication of EP1103315B1 publication Critical patent/EP1103315B1/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
    • B21C35/00—Removing work or waste from extruding presses; Drawing-off extruded work; Cleaning dies, ducts, containers, or mandrels
    • B21C35/04—Cutting-off or removing waste

Definitions

  • the invention relates to an extruder or pipe and extrusion press with a Raisable and lowerable shaving knife for severing one that is to be extruded Forming feed material, protruding from the tool having scissors.
  • extrusion presses are well known and are used either as direct or operated as indirect presses, i.e. with each other during the pressing process fixed die and transducer or with penetrating, die attached to the front end of the hollow punch.
  • the respective Execution depends, for example, on the materials and weights of the feed. Solid profiles, rods, strips, wires can be used as well as pipes and hollow profiles made of various materials, e.g. aluminum and Manufacture copper and corresponding alloys.
  • JP-A-07-323329 shows an extrusion press with the Features of the preamble of claim 1.
  • the invention is therefore based on the object, the shear knife of a generic type To design extrusion or pipe and extrusion press so that a perfect cut is always guaranteed and thus the described Disadvantages are avoided.
  • This object is achieved in that the shear knife against a setting force acting in the direction of the tool is pivotable on Scissor ram is stored. It can be incredibly simple self-adjusting shear knife and thus achieve that during the shearing process you can always work with a zero shear gap, independently a game of scissors that is compensated for as much as a positional deviation in the positioning or adjustment of scissors and die.
  • the hiring force ensures that the cutting knife with its cutting edge is secure the die or the tool comes into contact with the rest of the press separates, whereby it can be pivoted against the impending contact force allows the shear knife to limit in the event of unexpected resistance can dodge.
  • a plate spring package brings the required force as long as no cutting force acts on the knife edge. This can be advantageously done in a turn of the shear knife or the scissor ram Arrange so that it is on the one hand against the scissors ram and on the other hand acts against the clipper. In the starting position, i.e. before the cut, the disc spring package thus pushes the pivotable shear knife away Scissors ram. When the part that moves down to the separating cut If the shear knife is placed on the tool or die, it will give way in the opposite direction Direction back against the preload force of the plate spring assembly without however, losing contact with the tool or die.
  • the cutting edge of the shear knife comes as the shear stroke continues thus free of play for cutting and shears off the rest of the press. As soon as cutting force against the shear knife acts, is also due to the location of its pivot and base on the side of the knife edge facing away from the die one to the disc spring package additional pitch force generated. This hiring force is in one constant ratio to the cutting force and ensures a safe under all circumstances Place the knife edge on the die.
  • the shear knife follows when the die stands back from the exact position. In any case, it slides Shear knife with zero shear gap past the die. In the raised or When the scissors are not in use, the shear knife lays down due to the force the plate spring assembly, however, fits snugly on the threaded bolt head. When active This preset air in front of and behind the knife gives off the shearing or cutting process then the area or the freedom of movement for self employment of the Schermessers.
  • the shear knife can on a Support scissor lifter attached insert bar.
  • a Support scissor lifter attached insert bar In contrast to an alternative Support directly in the scissor ram results in a reduced manufacturing effort, because the complementary to the rounded end of the shear knife, dome-like swivel guide surface of the support for the shear knife can be separated from the actual scissors or their scissors ram and thus independent handy component can be formed.
  • An extruder 1 shown in the embodiment of FIG. 1 works after the direct pressing process. It comprises a counter beam 2, a tool turret or slide 3, a block transducer 4, a spar 5, a Press cylinder 6 with one acted upon by the latter into the block receiver 4 movable ram 7, a cylinder bar 8, an oil tank 9 with drive and controls and a pair of scissors 10 arranged on the counter beam 2 to separate one from the insert material when forming in front of the tool 3 or its die-forming press rest 11 (see FIGS. 2 and 3).
  • the scissors 10 has an up and down scissors ram 12 with a shear knife 13a (see FIG. 2) or 13b (see FIG. 3).
  • the shear knife 13a on his from the shear knife edge 14 distant end about a pivot pin 15 pivotable in Scissor ram 12 stored.
  • the upper end of the knife is supported directly in the Scissors ram 12, which is why it has a rounded end surface 16 complementary, i.e. concave swivel guide surface 17 of the Scissor ram 12 is present.
  • the pivotable shear knife 13a is under the force of a spring assembly 18, of which it with the setting force F in the direction of the die or the tool 3 is loaded.
  • the spring assembly 18 is in here a recess 19 of the scissor ram 12 is arranged and supported on the one hand against the shear knife 13a itself and on the other hand the bottom 20 of the recess 19 from.
  • a threaded bolt 21 is inserted, with its Threaded section is screwed into the scissors tappet 12.
  • the bolt head 22 has some air 23, which is the pitch corresponds to the shear knife 13a, since the shear knife 13a slides along on the die or the tool 3 against the force of the spring assembly 18 dodges away from the tool 3; the contact force F of the spring assembly 18 is so sufficient that the shear knife edge 14 nevertheless is always fed past the tool 3 and thus the pressing residue 11 cuts cleanly.
  • the shear knife 13a is limited by being opposed to each other Surfaces of the shear knife 13a and the scissor ram 12 have some air 24 is provided. As soon as after the separating cut, the scissor ram 12 is raised and the shear knife 13a thus comes free from the tool 3, pivots the spring assembly 18 the shear knife 13a for bearing against the bolt head 22.
  • the mode of operation of the shear knife 13b shown in FIG. 3 and its limits pivotable storage in the scissor ram 12 does not differ of the arrangement of FIG. 2, so that matching components with the same Reference numbers are provided.
  • the shear knife 13b is included its rounded surface 16 is not supported directly in the scissors ram 12, but with the interposition of a complementary swivel guide surface 17 having insert bar 25, which is also the base of the Shear knife 13b receiving seat of the scissor ram 12 is fixed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Of Metal (AREA)
  • Shearing Machines (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Accessories And Tools For Shearing Machines (AREA)
  • Forging (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
EP00121069A 1999-10-28 2000-09-28 Strangpresse bzw. Rohr- und Strangpresse Expired - Lifetime EP1103315B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19951933A DE19951933A1 (de) 1999-10-28 1999-10-28 Strangpresse bzw. Rohr- und Strangpresse
DE19951933 1999-10-28

Publications (3)

Publication Number Publication Date
EP1103315A2 EP1103315A2 (de) 2001-05-30
EP1103315A3 EP1103315A3 (de) 2002-02-06
EP1103315B1 true EP1103315B1 (de) 2004-11-03

Family

ID=7927166

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121069A Expired - Lifetime EP1103315B1 (de) 1999-10-28 2000-09-28 Strangpresse bzw. Rohr- und Strangpresse

Country Status (6)

Country Link
US (1) US6389863B1 (es)
EP (1) EP1103315B1 (es)
JP (1) JP2001179528A (es)
AT (1) ATE281252T1 (es)
DE (2) DE19951933A1 (es)
ES (1) ES2231096T3 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4522016B2 (ja) * 2001-05-14 2010-08-11 トヨタ自動車株式会社 フランジ除去装置とフランジ除去方法
DE10231328B4 (de) * 2002-07-11 2005-03-24 Erbslöh Aluminium Gmbh Strangpresse und Stangpressverfahren
EP2162247A1 (en) * 2007-07-05 2010-03-17 Alcoa Inc. Metal bodies containing microcavities and apparatus and methods relating thereto
US8490453B2 (en) * 2009-04-15 2013-07-23 Ube Machinery Corporation, Ltd. Extrusion press
JP5278690B2 (ja) * 2009-06-03 2013-09-04 宇部興産機械株式会社 押出プレスのディスカード切断装置
JP5278691B2 (ja) * 2009-06-15 2013-09-04 宇部興産機械株式会社 リアローディング型ショートストローク押出プレス
NL2004966C2 (nl) * 2010-06-24 2011-12-28 Vmi Holland Bv Snijinrichting.
CN102172659B (zh) * 2011-03-05 2012-10-31 尚守亮 多挤压杆挤压设备
WO2013068105A1 (de) 2011-11-07 2013-05-16 Sms Meer Gmbh Strang- und rohrpresse und verfahren zum abtrennen eines pressrests
CN103316938B (zh) * 2013-07-01 2016-08-10 无锡市威特机械有限公司 一种挤压机模座锁定装置
US10124383B2 (en) 2014-03-26 2018-11-13 Ube Machinery Corporation, Ltd. Extrusion method for extruded material
CN104289544B (zh) * 2014-10-11 2016-04-27 昆山名威精密工业有限公司 一种超长型推杆挂台加热挤压装置
CN105538153A (zh) * 2016-02-26 2016-05-04 昆山名威精密工业有限公司 一种全气动挂台扫头加工夹持组
DE102023104739A1 (de) 2022-11-14 2024-05-16 Sms Group Gmbh Pressrestschere sowie Verfahren zum Abscheren eines Pressrestes

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE477536C (de) * 1929-06-10 Emil Schulte Blechschere
US844744A (en) * 1906-10-10 1907-02-19 Birmingham Iron Foundry Shearing-machine.
DE553782C (de) * 1928-08-04 1932-06-30 Adolf Kreuser G M B H Stehende Metallstrangpresse
US3220237A (en) * 1962-01-29 1965-11-30 Farrel Corp Adjustable shear mounting for a hydraulic extrusion press
JPS60150906A (ja) * 1984-01-19 1985-08-08 Nissan Motor Co Ltd せん断用プレス金型
JPS62234616A (ja) * 1986-03-31 1987-10-14 Fujisash Co バツツハンマ−
US4738114A (en) * 1986-10-16 1988-04-19 Portion Control Systems, Inc. Temperature-controlled food dispenser
US4793170A (en) * 1987-06-19 1988-12-27 Everett Daniels Shear blade for aluminum extrusion process
US5237901A (en) * 1992-04-06 1993-08-24 Rohrer Special Machinery Inc. Shear
JPH06533A (ja) * 1992-06-17 1994-01-11 Showa Alum Corp ディスカード切断用シャー装置
US5740713A (en) * 1993-12-23 1998-04-21 Korb; Lothar Notch cutter
JP2943970B2 (ja) * 1994-05-31 1999-08-30 宇部興産株式会社 押出プレスのディスカード切断方法および装置

Also Published As

Publication number Publication date
ES2231096T3 (es) 2005-05-16
EP1103315A2 (de) 2001-05-30
US6389863B1 (en) 2002-05-21
DE19951933A1 (de) 2001-05-03
ATE281252T1 (de) 2004-11-15
JP2001179528A (ja) 2001-07-03
DE50008492D1 (de) 2004-12-09
EP1103315A3 (de) 2002-02-06

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