EP0114791A2 - Dispositif de freinage pour barres laminées - Google Patents

Dispositif de freinage pour barres laminées Download PDF

Info

Publication number
EP0114791A2
EP0114791A2 EP84830010A EP84830010A EP0114791A2 EP 0114791 A2 EP0114791 A2 EP 0114791A2 EP 84830010 A EP84830010 A EP 84830010A EP 84830010 A EP84830010 A EP 84830010A EP 0114791 A2 EP0114791 A2 EP 0114791A2
Authority
EP
European Patent Office
Prior art keywords
brake
rolled bar
panel
rolled
bar
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
EP84830010A
Other languages
German (de)
English (en)
Other versions
EP0114791A3 (en
EP0114791B1 (fr
Inventor
Geremia Nonini
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.)
Danieli and C Officine Meccaniche SpA
Original Assignee
Danieli and C Officine Meccaniche SpA
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 Danieli and C Officine Meccaniche SpA filed Critical Danieli and C Officine Meccaniche SpA
Priority to AT84830010T priority Critical patent/ATE28415T1/de
Publication of EP0114791A2 publication Critical patent/EP0114791A2/fr
Publication of EP0114791A3 publication Critical patent/EP0114791A3/en
Application granted granted Critical
Publication of EP0114791B1 publication Critical patent/EP0114791B1/fr
Expired 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
    • B21B43/00—Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
    • B21B43/003—Transfer to bed

Definitions

  • This invention concerns a device to brake rolled bars leaving a rolling line at high speed and thereafter to deposit such bars on a cooling plate.
  • the system for braking a rolled bar by friction against one or more surfaces is known, the friction being caused by the weight of the bar itself.
  • rollers between which the rolled product leaving the rolling line is made to pass.
  • Such roller systems entail constructional complications and also the necessity for considerable maintenance.
  • a purpose of the present invention is to provide a brake device which carries out the braking operations in a simple and reliable manner and which reduces maintenance work considerably.
  • Another purpose of this invention is to embody a device which obtains progressive braking of the rolled product and thereafter the discharge of the rolled product onto the cooling plate.
  • a further purpose of this invention is to provide a brake device advantageously having an action which can be graduated and adjusted to suit the type and speed of the rolled product.
  • Such brake panels are specifically shaped in such a way as to constrain the rolled product between a suitably shaped portion of the panels themselves and a flat slide path present on the side of the central support element.
  • the force of lateral friction to brake the rolled product is provided advantageously by a component of the weight of the panel itself; this component therefore presses the rolled product sideways against the brake path present on the central support element.
  • the rolled product becomes constrained, according to the invention, between a substantially horizontal surface in the lower part of the panel and two substantially vertical surfaces.
  • One of these substantially vertical surfaces is formed by a surface of the panel,whereas the other is formed by a stationary brake path which is a part of the central support element.
  • the invention furthermore visualises means for coordinated actuation of the panels. Actuation of each panel can be performed, for instance, by a cam which actuates a cam follower means located at the end of an arm solidly fixed to the panel.
  • the actuation is negative in the sense that the action of the cam located above the panel causes the panel itself to be moved away from the slide path. This causes the release of the rolled bar and the fall of the same onto the cooling bed, whereas the braking action is operated positively but is operated by the weight itself of the panel, it being possible for this weight to be graduated -perhaps by means of the cam or by appropriate means provided for the purpose.
  • the invention envisages that, when braking takes place, the cam disengages itself fully from the cam follower means and frees the panel, which is thus free to press with a component of its own weight against the rolled product and to constrain the latter against the brake path.
  • the cam is so shaped that the panel can take up three positions substantially:
  • the invention envisages advantageously that a timing component is embodied in the cams which actuate the various panels in succession, so that the action of the panels is synchronized with the entry and the sliding of the rolled product into the braking zone.
  • the start of the braking is governed by a sensor which senses the passage of the rolled product; such sensor can be, for instance, of an optoelectronic type or other equivalent type.
  • actuation means of a different type, whether pneumatic, electromagnetic, mechanical or a combination of the same, which carry out in every case the three phases of entry, braking and discharge respectively, it being possible in such a case for braking to be graduated or to be capable of being graduated.
  • the invention envisages advantageously the ability to equip each panel with one or more counterweights which can be suitably adjusted so as to be able to regulate the force of friction due to the weight of the panel itself, depending on the type of rolled product and its speed of sliding.
  • the invention is therefore embodied with a device to brake a rolled bar leaving a rolling line and to deposit such bar thereafter on a cooling plate, which device comprises in coordinated cooperation:
  • a central support element 11 has on its sides two substantially vertical brake paths 12.
  • Fig.1 shows a brake panel 13 positioned at one side of the central support element 11.
  • This panel 13 includes a portion 14 for constrainment of rolled bars, the portion 14 being shaped in such a way as to face the brake path 12.
  • the brake panel 13 is pivoted at 15 on the central support element 11.
  • the pivot 15 is shown with a knife-edge suspension but could also consist of a pivot pin or other equivalent means.
  • the pivot 15 is envisaged as being multiple, for instance double as in Fig.2.
  • the panel should be suspended at least at two points spaced apart lengthwise.
  • An arm 16 which may be single or multiple, is provided in the upper portion of the panel 13 and is operated by actuation means 22.
  • the actuation means 22 consist of a cam follower 17, constituted substantially of a wheel or roller, and of a suitably shaped cam 18 supported on a shaft 19 moved by appropriate means not shown here.
  • the arm 16 is envisaged as being double so as to obtain a two-point suspension in a simple manner and so as to provide constructional simplicity.
  • the arms 16 extend so as to form ribs 116 solidly fixed to the constrainment portion 14.
  • Rotation of the cam 18 causes displacement of the arm 16 and therefore of the constrainment portion 14 in relation to the brake path 12.
  • the rolled bar 20 thus begins to slide with friction on three surfaces 114, 214 and 12 respectively; the force of friction against the lower surface 214 is caused substantially by the weight of the rolled bar 20, whereas the force of friction against the surfaces 114 and 12 at the sides of the rolled bar 20 is caused by the weight of the panel 13.
  • the invention envisages the possibility of applying a counterweight 21 to the panel 13, as shown on a panel 113 in Fig.2, for instance.
  • Such counterweight 21 will be advantageously adjustable or movable so as to vary as necessary the sideways braking force applied to the rolled bar 20 according to requirements.
  • the embodiment illustrated shows, for the sake of clarity, only panels 13-113 positioned on one side of the central support element 11, but it is to be understood that according to the invention two rows of panels 13 can be provided, one on each side of the central support element 11, and be arranged alternately.
  • the actuation cams 18 are located on the upper side of the device 10 and are operated by one single shaft 19 in the example shown.
  • cams 18 can be suitably disposed out of phase with each other so as to obtain a desired succession of actuations of the panels 13 in such a way that the panels 13 are released and the rolled bar 20 is thus braked progressively, depending on the position of the rolled bar 20; that is to say, by regulating suitably the timings of the release of the panels 13 it is possible to prevent a panel 13 from pressing against a rolled bar 20 if the end of the latter 20 has not already moved to a position corresponding with the panel 13 itself.
  • actuation cam means 18 can be replaced with mechanical equivalents such as electromagnets, jacks, levers or other equivalent means. It is also possible to employ the device 10 in cooperation with other known brake means.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Metal Rolling (AREA)
  • Chutes (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
EP84830010A 1983-01-24 1984-01-17 Dispositif de freinage pour barres laminées Expired EP0114791B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84830010T ATE28415T1 (de) 1983-01-24 1984-01-17 Bremsvorrichtung fuer walzstaebe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT83312/83A IT1175040B (it) 1983-01-24 1983-01-24 Dispositivo di frenatura per barre laminate
IT8331283 1983-01-24

Publications (3)

Publication Number Publication Date
EP0114791A2 true EP0114791A2 (fr) 1984-08-01
EP0114791A3 EP0114791A3 (en) 1984-08-22
EP0114791B1 EP0114791B1 (fr) 1987-07-22

Family

ID=11319945

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84830010A Expired EP0114791B1 (fr) 1983-01-24 1984-01-17 Dispositif de freinage pour barres laminées

Country Status (4)

Country Link
EP (1) EP0114791B1 (fr)
AT (1) ATE28415T1 (fr)
DE (1) DE3464859D1 (fr)
IT (1) IT1175040B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189616A2 (fr) * 1985-01-23 1986-08-06 DANIELI & C. OFFICINE MECCANICHE S.p.A. Dispositif de transfert pour produits laminés sur un lit de refroidissement dont la fermeture se fait par action positive
EP0411688A1 (fr) * 1989-07-31 1991-02-06 POMINI S.p.A. Procédure et disposition pour cisaillage d'acier en barres à tronçons qui vient d'un laminoir
EP0636430A1 (fr) * 1993-07-30 1995-02-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé pour la réception et la décharge multiple de barres laminées sur un lit de refroidissement et dispositif pour la réalisation d'un tel procédé
EP0864381A2 (fr) * 1997-03-15 1998-09-16 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif pour le freinage et le transfert de produits laminés

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3655122A (en) * 1970-10-20 1972-04-11 George A Brown Pipe line cleaner and sealer

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7011686A (en) * 1970-08-07 1972-02-09 Rolling mill bar transfer appts - with pick up and loading - of pre-cut hot rolled steel bars onto a cooling bed
US3785467A (en) * 1971-08-24 1974-01-15 Kyoei Steel Works Ltd Cooling bed for steel bar equipped with steel bar automatic stop motion

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7011686A (en) * 1970-08-07 1972-02-09 Rolling mill bar transfer appts - with pick up and loading - of pre-cut hot rolled steel bars onto a cooling bed
US3785467A (en) * 1971-08-24 1974-01-15 Kyoei Steel Works Ltd Cooling bed for steel bar equipped with steel bar automatic stop motion

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0189616A2 (fr) * 1985-01-23 1986-08-06 DANIELI & C. OFFICINE MECCANICHE S.p.A. Dispositif de transfert pour produits laminés sur un lit de refroidissement dont la fermeture se fait par action positive
EP0189616A3 (en) * 1985-01-23 1986-10-29 Danieli & C. Officine Meccaniche S.P.A. Device to discharge rolled products onto a cooling plate, closure of the device taking place by positive actuation
US4711340A (en) * 1985-01-23 1987-12-08 Danieli & C. Officine Meccaniche Spa Device to discharge rolled products onto a cooling plate, closure of the device taking place by positive actuation
EP0411688A1 (fr) * 1989-07-31 1991-02-06 POMINI S.p.A. Procédure et disposition pour cisaillage d'acier en barres à tronçons qui vient d'un laminoir
EP0636430A1 (fr) * 1993-07-30 1995-02-01 DANIELI & C. OFFICINE MECCANICHE S.p.A. Procédé pour la réception et la décharge multiple de barres laminées sur un lit de refroidissement et dispositif pour la réalisation d'un tel procédé
US5501314A (en) * 1993-07-30 1996-03-26 Danieli & C. Officine Meccaniche Spa Method for the multiple receipt and discharge of rolled sections onto a cooling plate and device performing such method
EP0864381A2 (fr) * 1997-03-15 1998-09-16 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif pour le freinage et le transfert de produits laminés
EP0864381A3 (fr) * 1997-03-15 1999-03-31 Sms Schloemann-Siemag Aktiengesellschaft Procédé et dispositif pour le freinage et le transfert de produits laminés

Also Published As

Publication number Publication date
ATE28415T1 (de) 1987-08-15
EP0114791A3 (en) 1984-08-22
IT1175040B (it) 1987-07-01
IT8383312A0 (it) 1983-01-24
DE3464859D1 (en) 1987-08-27
EP0114791B1 (fr) 1987-07-22

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