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EP2646181B1 - Système comprenant un disque de pression et un adaptateur pour le montage sur une presse d'extrusion - Google Patents

Système comprenant un disque de pression et un adaptateur pour le montage sur une presse d'extrusion Download PDF

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Publication number
EP2646181B1
EP2646181B1 EP11790964.8A EP11790964A EP2646181B1 EP 2646181 B1 EP2646181 B1 EP 2646181B1 EP 11790964 A EP11790964 A EP 11790964A EP 2646181 B1 EP2646181 B1 EP 2646181B1
Authority
EP
European Patent Office
Prior art keywords
sealing ring
press
connecting web
piece
extrusion
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.)
Active
Application number
EP11790964.8A
Other languages
German (de)
English (en)
Other versions
EP2646181A1 (fr
Inventor
Horst Heydasch
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.)
Horst Heydasch Dummy Block & Co KG GmbH
Original Assignee
Horst Heydasch Dummy Block & Co KG 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 Horst Heydasch Dummy Block & Co KG GmbH filed Critical Horst Heydasch Dummy Block & Co KG GmbH
Priority to SI201131983T priority Critical patent/SI2646181T1/sl
Publication of EP2646181A1 publication Critical patent/EP2646181A1/fr
Application granted granted Critical
Publication of EP2646181B1 publication Critical patent/EP2646181B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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, 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
    • B21C23/02—Making uncoated products
    • B21C23/04—Making uncoated products by direct extrusion
    • B21C23/08—Making wire, rods or tubes
    • B21C23/085—Making tubes
    • 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
    • B21C26/00—Rams or plungers for metal extruding; Discs therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams

Definitions

  • the press disk During pressing, the press disk is exposed to a strong pressure load and an increase in diameter, which leads to stress on the material. This stress leads to wear of the press disk material. Furthermore, with the pressing devices according to the state of the art, the problem arises that at the beginning of the pressing process, air contained in the receiver often cannot completely escape and affects the material to be pressed.
  • the respective connecting element can have at least one step on its circumference with an essentially radially extending tensile surface, so that the retraction force of the ram can be transmitted via this tensile surface to the sealing ring via the connecting element.
  • This has the advantage that the retraction force can be directed specifically to a specific surface of the sealing ring.
  • the filler piece 30 is connected to the sealing ring 40 with a connecting web, regardless of the selected connecting element.
  • this can be done by a fastening bolt 100 which is screwed into the filler piece 30 and the sealing ring 40 and is additionally secured against rotation by a pin connection 73, which is only shown in dashed lines.
  • the front side of the fastening bolt 100 together with the filler piece 30 forms part of the pressing surface.
  • the sealing ring 40 together with the filler piece 30 and the Fastening bolts 100 are screwed onto the connecting web 110 and secured against axial movement by the bayonet lock.
  • a corresponding double fit can be produced as a function of the elasticity of the sealing ring 40 by maintaining a tolerance of a few hundredths of a millimeter, which is easily possible by using appropriate machine tools. For example, maintaining a tolerance of ⁇ 0.03 millimeters when using a suitable hot-work steel for the sealing disk 40 has proven to be sufficient. Depending on Material pairing, occurring compressive forces and diameter of the press disc, it is sufficient if the surfaces are only partially in contact under pressure.
  • a sealing ring 40 can also be designed in two pieces, for example, the two partial pieces of the sealing ring then being connected to one another, for example, via a pin connection.
  • the sealing ring 40 can also be formed from more than two parts which are connected to one another in such a way that rotating the outer part causes all parts connected thereto to rotate. This has the advantage that parts can be exchanged individually when worn, which is the case in particular for an outer part which includes the inner conical surface 41 and with this surface forms the gap 50 to the outer conical surface 31 of the filler piece.
  • the sealing ring 40 has a greater overall height on the outside than on the inside, so that a step results between these areas of different overall height which opens into the support surface of the filler piece 30. At the transition between these two areas, an axial recess can be provided in the sealing ring in each embodiment. As a result of this puncture, the sealing ring 40 expands more easily at a defined point in time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sealing Devices (AREA)
  • Gasket Seals (AREA)
  • Bolts, Nuts, And Washers (AREA)

Claims (6)

  1. Système constitué d'un disque de pression (10) et d'une pièce adaptatrice (21) pour le montage sur un poinçon de pression (20) d'un dispositif de pression, dans lequel le disque de pression (10) comprend au moins une pièce intercalaire (30) avec une face de pression (31) par le biais de laquelle une force peut être appliquée sur un matériau à presser, et la pièce intercalaire (30) est conçue conique sur son diamètre extérieur avec une face extérieure conique (32) et est entourée par une bague d'étanchéité (40) appartenant également au disque de pression qui est ainsi conçue par son diamètre intérieur qu'elle forme une fente (50) avec sa face intérieure conique (41) et la face extérieure conique (32) de la pièce intercalaire (30), et au moins une fente radiale (51) passe entre la pièce intercalaire (30) et la bague d'étanchéité (40), qui s'élargit de façon conique de l'intérieur vers l'extérieur, dans lequel la pièce intercalaire (30) et la bague d'étanchéité (40) peuvent être montées sur la pièce adaptatrice (21) par un élément de liaison (110; 110') et la force de rappel du poinçon de pression (20) peut être transmise à la bague d'étanchéité (40) par l'élément de liaison (110; 110'),
    caractérisé en ce que la pièce intercalaire (30) est reliée à la bague d'étanchéité (40) et est bloquée contre un mouvement axial sur la bague d'étanchéité (40),
    que l'élément de liaison (110; 110') est une traverse de liaison (110; 110') périphérique, dans lequel la traverse de liaison (110; 110') le cas échéant interrompue par tronçons fait le tour de l'axe longitudinal du disque de pression (10) et dans lequel soit la traverse de liaison (110) est appliquée sur la pièce adaptatrice (21) et fait saillie dans un évidement périphérique (109) correspondant dans la bague d'étanchéité (40) ou bien la traverse de liaison (110') est formée sur la bague d'étanchéité (40) et fait saillie dans un évidement périphérique (109') correspondant dans la pièce adaptatrice (21),
    qu'entre l'élément de liaison (110; 110') et l'évidement (109), il y a un léger jeu pour pouvoir tourner les deux pièces l'une contre l'autre, qu'une rotation de la bague d'étanchéité (40) et donc du disque de pression (10) puisse avoir lieu par des réceptions (91) qui se trouvent sur le côté de la bague d'étanchéité (40), que soit des ergots à baïonnette (111, 112, 111', 112') sont prévus qui s'engrènent dans des nervures de guidage, dans lequel une force de rappel du poinçon de pression (20) peut être transmise de la pièce adaptatrice (21) à la bague d'étanchéité (40) par des faces de traction (66') au niveau des ergots à baïonnette (111, 112, 111', 112') tandis que des forces de pression peuvent être absorbées par une face avant de la traverse de liaison (110), soit la traverse de liaison (110, 110') est vissée dans l'évidement (109, 109'), dans lequel une force de rappel du poinçon de pression peut être transmise par le filet, mais la totalité de la face avant de la traverse de liaison (110, 110') est disponible pour recevoir les forces de pression.
  2. Système selon la revendication 1, caractérisé en ce que de l'air venant de la fente radiale (51) peut être évacué latéralement par des canaux de ventilation (92).
  3. Système selon l'une des revendications précédentes, caractérisé en ce que les ergots à baïonnette (111, 112, 111', 112') sont formés par une couronne périphérique avec plusieurs interruptions, dans lequel les zones entre les interruptions forment les ergots à baïonnette qui peuvent s'engrener dans des nervures de guidage dans l'évidement (109) conçues avec une largeur correspondante.
  4. Système selon l'une des revendications précédentes, caractérisé en ce que les ergots à baïonnette (111, 112, 111', 112') sont disposés tant sur le côté intérieur qu'extérieur de la traverse de liaison (110, 110').
  5. Système selon l'une des revendications 1 à 3, caractérisé en ce qu'une baïonnette est prévue avec des ergots à baïonnette (111, 111' ou 112, 112') disposés uniquement sur un côté.
  6. Dispositif de pression, caractérisé en ce qu'il comprend un poinçon de pression et un système selon l'une des revendications 1 à 5.
EP11790964.8A 2010-12-01 2011-11-30 Système comprenant un disque de pression et un adaptateur pour le montage sur une presse d'extrusion Active EP2646181B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201131983T SI2646181T1 (sl) 2010-12-01 2011-11-30 Sistem iz stiskalne plošče in prilagoditvenega kosa za namestitev na stiskalnem pestišču stiskalne naprave

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102010062258 2010-12-01
DE102010064400A DE102010064400B4 (de) 2010-12-01 2010-12-30 Pressscheibe und Pressvorrichtung mit einer solchen Pressscheibe
PCT/EP2011/071402 WO2012072688A1 (fr) 2010-12-01 2011-11-30 Disque de pression

Publications (2)

Publication Number Publication Date
EP2646181A1 EP2646181A1 (fr) 2013-10-09
EP2646181B1 true EP2646181B1 (fr) 2021-03-31

Family

ID=45872624

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11790616.4A Active EP2646180B1 (fr) 2010-12-01 2011-11-30 Disque de pression
EP11790964.8A Active EP2646181B1 (fr) 2010-12-01 2011-11-30 Système comprenant un disque de pression et un adaptateur pour le montage sur une presse d'extrusion

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11790616.4A Active EP2646180B1 (fr) 2010-12-01 2011-11-30 Disque de pression

Country Status (6)

Country Link
US (1) US9492855B2 (fr)
EP (2) EP2646180B1 (fr)
CA (1) CA2819279C (fr)
DE (2) DE102010064400B4 (fr)
SI (1) SI2646181T1 (fr)
WO (2) WO2012072686A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3108979T3 (pl) 2015-06-24 2018-01-31 Voestalpine High Performance Metals Sweden Ab Blok cisnący dla prasy do wyciskania
US11819910B2 (en) * 2016-10-06 2023-11-21 Exco Technologies Limited Tool steel composition for component of die-casting apparatus or of extrusion press
US20200376529A1 (en) * 2018-11-15 2020-12-03 The Regents Of The University Of Michigan Extrusion of metal material using a dummy block having a curved surface
CN115283474B (zh) * 2022-10-08 2023-01-24 中北大学 一种高性能板坯均匀正挤压控制成形模具
US12090537B2 (en) * 2022-12-16 2024-09-17 Exco Technologies Limited Dummy block for extrusion press

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7314414U (de) * 1977-07-28 Schloemann-Siemag Ag, 4000 Duesseldorf Preßscheibe für den Preßstempel von Strangpressen, insbesondere von Aluminiumstrangpressen
JPS51122151U (fr) * 1975-03-28 1976-10-04
GB2067944B (en) * 1980-01-26 1983-03-23 Centry Aluminium Co Ltd Extrusion process
JPH0750007Y2 (ja) * 1990-11-06 1995-11-15 日本軽金属株式会社 ダミーブロックの押出ステムへの連結構造
DE4132810C2 (de) * 1991-10-02 1994-02-17 Erbsloeh Julius & August Preßscheibe mit Entlüftungseinrichtung
US5272900A (en) 1992-09-18 1993-12-28 Exco Technologies, Limited Bayonet style connector for metal extrusion dummy block
US5918498A (en) * 1996-07-18 1999-07-06 Robbins; Paul H. Dummy block construction
DE10036463B4 (de) * 2000-07-25 2005-08-04 Heydasch, Horst Pressscheibe und Pressvorrichtung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2012072686A1 (fr) 2012-06-07
DE102010064400B4 (de) 2012-09-20
EP2646180A1 (fr) 2013-10-09
SI2646181T1 (sl) 2021-08-31
EP2646180B1 (fr) 2017-11-15
US9492855B2 (en) 2016-11-15
DE102011007729B3 (de) 2012-04-12
WO2012072688A1 (fr) 2012-06-07
DE102010064400A1 (de) 2012-06-06
EP2646181A1 (fr) 2013-10-09
CA2819279A1 (fr) 2012-06-07
US20130247640A1 (en) 2013-09-26
CA2819279C (fr) 2018-11-13

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