EP0445898A2 - Presse à refouler des brames avec bâti déplaçable - Google Patents

Presse à refouler des brames avec bâti déplaçable Download PDF

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Publication number
EP0445898A2
EP0445898A2 EP19910250042 EP91250042A EP0445898A2 EP 0445898 A2 EP0445898 A2 EP 0445898A2 EP 19910250042 EP19910250042 EP 19910250042 EP 91250042 A EP91250042 A EP 91250042A EP 0445898 A2 EP0445898 A2 EP 0445898A2
Authority
EP
European Patent Office
Prior art keywords
press
upsetting
press frame
foundation
tool
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.)
Withdrawn
Application number
EP19910250042
Other languages
German (de)
English (en)
Inventor
Emil Kersting
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.)
Vodafone GmbH
Original Assignee
Mannesmann AG
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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0445898A2 publication Critical patent/EP0445898A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0035—Forging or pressing devices as units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00—Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/04—Shaping in the rough solely by forging or pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J9/00—Forging presses
    • B21J9/02—Special design or construction
    • B21J9/06—Swaging presses; Upsetting presses

Definitions

  • the invention relates to a press for the lateral upsetting of workpieces, in particular a slab upsetting press, consisting of a press frame in which upsetting tools which can be moved towards one another in an horizontal plane are arranged on both sides of the workpiece.
  • each upsetting tool is displaceably mounted in the press frame relative to the same, the drive being effected by means of eccentrics assigned to each upsetting tool, which in turn is assigned a drive with a gear (FIG. 2).
  • Such presses are very expensive because the double drive trains, which have to be coordinated with one another and the double provided eccentric shafts are not only very complex but also very expensive and thus reduce the economy of the upsetting press in particular when smaller dimensions or not so high outputs are required .
  • the present invention has for its object to provide a press for the side upsetting of workpieces, in particular slab upsetting press, the construction costs are low and the economy is therefore optimal without reducing the performance of the press.
  • a press is proposed according to the invention, which is characterized by a cranked crankshaft which is fixed relative to the foundation, one crank radius of which is connected via at least one tappet to the first compression tool, which is displaceably mounted in the press frame, and the other of which is offset by 180 degrees, the amount of the same-sized crank radius is connected via a second tappet to the press frame, which in turn is horizontally displaceable together with the second compression tool fixed therein and can be moved in opposite directions to the first tool with respect to the foundation.
  • the proposed press according to the invention is considerably simplified in terms of construction costs in that only a single crank drive is present, while the second upsetting tool is moved together with the press frame and over it in the opposite direction to the first upsetting tool.
  • the press frame thus represents a type of tie rod with which the crank movement derived from the double cranked crankshaft is transmitted to the upsetting tool.
  • the press frame on its side facing the foundation is provided with raceways with which it rests on rollers which are mounted on the foundation in a stationary manner.
  • the rollers allow the press frame to be moved back and forth easily, even with very high weight. The roles can if necessary. be arranged on a rocker so that the force is distributed evenly over the track.
  • slideways instead of rollers.
  • a known adjusting means is provided between the second ram and the press frame.
  • the adjusting means can be adjusting spindles known per se, the actuation of which changes the position of the press frame in space and thus adjusts the clear width between the first and second upsetting tools. This enables adjustment to different slab widths.
  • grease or oil-fed piston-cylinder units or inserts of different thicknesses are also conceivable as adjusting means.
  • 1 denotes the press frame, which has on its underside tracks 2 with which the press frame 1 rests on rollers 3 which are fastened to the foundation F in bearing blocks 4.
  • the slab to be compressed is numbered 5.
  • the slab 5 rests on a roller table, which is indicated schematically at 6.
  • the tool 7 is firmly connected to the press frame 1 via the tool holder 9 at 11.
  • the tool 8 is fastened via the tool holder 10 to a slide 12 which is guided with corresponding slideways on slideways 13 which are attached to the inside of the press frame 1.
  • the press is driven by a crankshaft 14, which is driven by a motor (not shown) and, as can be seen in FIG. 2, is mounted on the foundation F in bearing blocks 15 at 16.
  • the crankshaft 14 is cranked by the same amount in two directions offset by 180 degrees, as can be seen from the dash-dotted lines next to the axis of rotation 17 of the crankshaft 14.
  • the plunger 20 is mounted, which is diffractionally connected to the spindle 21 of the adjusting device, which in turn adjustable in the press frame 1 is mounted.
  • the press frame 1 thus moves back and forth by an amount predetermined by the crank radius, which corresponds to the working stroke of the tool 7.
  • crank radius which is indicated at 14
  • two tappets 22 are mounted, which are also connected diffractionally to the slide 12, which is slidably mounted at 13 in the press frame.
  • the tool 8 is fastened to the slide 12 via the tool holder 10, so that when the crankshaft 14 is rotated, the slide 12 also makes a back and forth movement corresponding to the crank radius, which corresponds to the working stroke of the tool 8.
  • crank radii are the same but offset from one another by 180 degrees, the tools 7 and 8 move towards and away from one another when the crankshaft 14 is set in rotation. In this way, the same result as in the prior art can be achieved with a single crankshaft and a correspondingly lower construction cost in that the press frame itself is included in the tool movement.
  • the position of the press frame 1 with respect to the axis of rotation 17 of the crankshaft can be changed and the inside width between the upsetting tools 7 and 8 can thus vary.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
EP19910250042 1990-03-06 1991-02-13 Presse à refouler des brames avec bâti déplaçable Withdrawn EP0445898A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904007407 DE4007407A1 (de) 1990-03-06 1990-03-06 Brammenstauchpresse mit verschiebbarem rahmen
DE4007407 1990-03-06

Publications (1)

Publication Number Publication Date
EP0445898A2 true EP0445898A2 (fr) 1991-09-11

Family

ID=6401746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910250042 Withdrawn EP0445898A2 (fr) 1990-03-06 1991-02-13 Presse à refouler des brames avec bâti déplaçable

Country Status (3)

Country Link
EP (1) EP0445898A2 (fr)
JP (1) JPH04228294A (fr)
DE (1) DE4007407A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0798056A1 (fr) * 1996-03-25 1997-10-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé et dispositif pour le refoulement latéral de brames
EP1690672A3 (fr) * 2005-02-14 2009-07-22 UHLMANN PAC-SYSTEME GmbH & Co. KG Station d'opération avec des mouvements de levage en sens opposé pour fermer les outils

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0798056A1 (fr) * 1996-03-25 1997-10-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé et dispositif pour le refoulement latéral de brames
US5901602A (en) * 1996-03-25 1999-05-11 Danieli & C. Officine Meccaniche Spa Method for the lateral compacting of slabs and relative device
EP1690672A3 (fr) * 2005-02-14 2009-07-22 UHLMANN PAC-SYSTEME GmbH & Co. KG Station d'opération avec des mouvements de levage en sens opposé pour fermer les outils

Also Published As

Publication number Publication date
JPH04228294A (ja) 1992-08-18
DE4007407A1 (de) 1991-09-12

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