EP3782745A1 - Machine à dresser, agencement d'entretien et procédé permettant de rendre les rouleaux de dressage accessibles pour l'entretien d'une machine à dresser - Google Patents

Machine à dresser, agencement d'entretien et procédé permettant de rendre les rouleaux de dressage accessibles pour l'entretien d'une machine à dresser Download PDF

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Publication number
EP3782745A1
EP3782745A1 EP20191935.4A EP20191935A EP3782745A1 EP 3782745 A1 EP3782745 A1 EP 3782745A1 EP 20191935 A EP20191935 A EP 20191935A EP 3782745 A1 EP3782745 A1 EP 3782745A1
Authority
EP
European Patent Office
Prior art keywords
straightening
rollers
straightening machine
slide plate
machine
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
EP20191935.4A
Other languages
German (de)
English (en)
Other versions
EP3782745B1 (fr
Inventor
Lothar Hug
Daniel Vögele
Markus Blust Dr.
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.)
Kohler Maschinenbau GmbH
Original Assignee
Kohler Maschinenbau 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 Kohler Maschinenbau GmbH filed Critical Kohler Maschinenbau GmbH
Publication of EP3782745A1 publication Critical patent/EP3782745A1/fr
Application granted granted Critical
Publication of EP3782745B1 publication Critical patent/EP3782745B1/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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/14—Particular arrangements for handling and holding in place complete dies

Definitions

  • the invention relates to a straightening machine for straightening a metal strip or flat metal parts according to the preamble of claim 1, in particular a straightening machine with a maintenance device, and a method for making straightening rolls accessible for the maintenance of such a straightening machine.
  • the invention also relates to a maintenance device for performing the method.
  • a straightening machine of the present type includes a number of upper straightening rolls, which are stored in an upper roll frame, and a number of lower straightening rolls, which are stored in a lower roll frame.
  • the upper and lower straightening rollers are arranged in such a way that they form a straightening gap in a working area between an inlet and an outlet of the straightening machine, in order to act from above and below on the metal strip or metal part to be straightened and this through in a working direction from the inlet to the outlet to guide the straightener.
  • Straightening machines of the present type are used to remove tension and unevenness in metal strips or metal parts.
  • the upper and lower straightening rollers are offset from one another along the straightening gap in such a way that the material to be straightened is bent alternately up and down on the straightening rollers.
  • the bending takes place in such a way that the material is bent beyond its yield point, at least at the first straightening rollers, so that undesirable bends and stresses in the material are eliminated as completely as possible.
  • the material is attached to the first straightening roll of the straightening machine heavily plasticized. The material is bent a little less on each further straightening roller, and the material is no longer plasticized on the last straightening roller, ie it is only elastically deformed.
  • metal strips are often used, which are delivered as so-called coils and processed from there for production.
  • the winding of the strip material into coils and any previous thermal treatments and the like result in unevenness and tension in the strip material, which are unfavorable for further processing. Therefore, after being unwound from the coil, metal strips are passed through the straightening gap of a straightening machine of the present type, which they leave flat and free of tension. The same applies to flat metal parts that are to be freed from undesired bends and stresses.
  • the upper straightening rollers and the lower straightening rollers each together with their support rollers and support roller blocks to be attached to an upper or a lower slide plate, with which they can be extended transversely to the working direction from the working area of the straightening machine on an operating side of the straightening machine and retracted into this again.
  • the straightening rollers of this known straightening machine are attached to the respective slide plate in an interchangeable cassette, which is provided with bearing strips on both the operating side and the drive side of the straightening machine, in which the straightening rollers are mounted and held.
  • the invention is therefore based on the object of proposing a straightening machine of the type mentioned, in which there is at least one lower slide plate for extending the lower straightening rolls, as well as a method for making straightening rolls accessible for the maintenance of a straightening machine, the proposed straightening machine or the Process ensures improved accessibility of the upper straightening rollers.
  • a straightening machine of the present invention thus comprises, as is initially known per se, a number of upper straightening rolls, which are mounted in an upper roll frame, a number of lower straightening rolls, which are mounted in a lower roll frame, the upper and lower straightening rolls so arranged are that they form a straightening gap between an inlet and an outlet of the straightening machine in a work area in order to act from above and below on the metal strip or metal part to be straightened and to guide it in one working direction from the inlet to the outlet through the straightener, and includes Furthermore, a lower slide plate with which the lower straightening rollers on an operating side of the straightening machine can be extended transversely to the working direction from the working area of the straightening machine and retracted again.
  • an interchangeable prism is as Maintenance device or provided as an extension of the maintenance device, which can be inserted into the straightening gap (usually after it has been widened) and which is designed so that it then rests on the lower straightening rollers when the lower slide plate is extended from the work area, while the upper straightening rollers rest on the interchangeable prism.
  • the lower slide plate can therefore optionally, as known per se from the prior art, be extended with the lower straightening rollers from the working area of the straightening machine and retracted into it again, or according to the present invention, after inserting the interchangeable prism into the straightening gap the lower straightening rollers, with the interchangeable prism resting on them, and with the upper straightening rollers resting on the interchangeable prism, are extended out of the work area of the straightening machine and retracted again.
  • the upper straightening rollers are made accessible, advantageously in such a way that the upper straightening rollers, in the extended position of the lower slide plate, are accessible from above, in particular also for a crane. There is then not, as is the case in the prior art, an upper slide plate which would cover the upper straightening rollers and prevent direct access from above.
  • the method according to the invention for making straightening rolls accessible for the maintenance of a straightening machine which is designed as just stated, accordingly comprises the lifting of the upper roller frame relative to the lower roller frame to widen the leveling gap (whereby according to the invention only the relative movement is important, i.e.
  • the straightening machine preferably has, as is known per se, at least on the operating side of the straightening machine an upper bearing strip in which the upper straightening rollers are mounted and a lower bearing strip in which the lower straightening rollers are mounted.
  • the upper and lower bearing guides are directly, or indirectly, releasably fastened in the respective roller frame by means of a fastening in a slide plate in order to move the lower straightening rollers, or according to the invention optionally the lower straightening rollers together with the upper straightening rollers, with the lower slide plate out of the work area of the straightener to be able to.
  • the lower slide plate of the straightening machine can carry lower supporting roller blocks with supporting rollers mounted therein, on which the lower straightening rollers rest and from which the lower straightening rollers are supported during operation of the straightening machine.
  • the lower bearing strip for the lower straightening rollers is then attached directly or indirectly to the lower slide plate, so that when the lower slide plate is pulled out, both the support roller blocks with the support rollers stored therein and the lower straightening rollers together with the lower slide plate extend out of the work area of the straightener and be retracted again.
  • at least one interchangeable cassette can also be provided, in which the lower straightening rollers in particular are seated and which can be extended and retracted with the lower slide plate.
  • a driver device for coupling the upper bearing strip to the lower bearing strip.
  • This driver device can ensure that the upper bearing strip with the upper straightening rollers stored therein together with the lower bearing strip, the lower straightening rollers and the lower slide plate is extended from the work area of the straightener.
  • This driver device can be attached to the lower bearing strip and / or to the interchangeable prism; the latter also to additionally couple the interchangeable prism to the lower and upper bearing strip. Swiveling clamping lugs attached to the driver device are preferably used to fasten the upper bearing strip.
  • a further preferred embodiment of the straightening machine according to the invention consists in the presence of a holding bar for attachment to the upper bearing bar, the holding bar being provided with a receptacle for the upper straightening rollers, in which the upper straightening rollers can be fixed at least in one axial degree of freedom.
  • the straightening rolls can rotate about their longitudinal axis despite their axial fixation in the holding bar.
  • the retaining bar ensures that the upper straightening rollers are extended together with the upper bearing bar from the work area of the straightening machine and are not pulled out of the bearing bar, for example because they get stuck in the coupling element of the drive device on their opposite end face.
  • the bearings of the upper straightening rollers in the upper bearing bar are relieved by the holding bar when extending, since the holding bar ensures a flow of force from the lower slide plate via the lower bearing bar, the driver device and the upper bearing bar into the upper straightening rolls when the lower slide plate is pulled out becomes.
  • the interchangeable prism present according to the invention preferably consists essentially of a frame with at least two roller support strips held in the frame and / or forming parts of the frame.
  • it is preferably made of aluminum or some other light metal.
  • the retaining bar can be moved in an axial degree of freedom relative to the upper bearing bar to which it is attached, for example by means of forcing bolts, the retaining bar can also be used to push the upper straightening rollers out of the upper bearing bar and pull them back into it.
  • Figure 1 shows, in a side view, a detail with the work area 4 of a straightening machine, which is exemplarily configured according to the present invention.
  • the same view is found in the Figures 2 , 4th and 6th , in which the same reference symbols are used for the same elements.
  • the straightening machine shown in these figures has an upper roller frame 1 and a lower roller frame 2, which are held in a frame (not visible here), the upper roller frame 1 being able to move up and down to open and close a leveling gap 3 can.
  • the upper roller frame 1 being able to move up and down to open and close a leveling gap 3 can.
  • six upper straightening rollers 5 are arranged above the straightening gap 3 in the upper roller frame 1, while a total of seven lower straightening rollers 6 are present below the straightening gap 3 in the lower roller frame 2.
  • Of the upper and lower straightening rollers 5, 6, essentially only their end faces, which point towards the operating side and are provided with axial coupling elements, can be seen in these illustrations.
  • the upper and lower straightening rollers 5, 6 are arranged offset from one another along the straightening gap 3, i.e. in a working direction 7 from an inlet 8 to an outlet 9 of the working area 4, in such a way that a metal strip (not shown), which is fed by the straightening rollers 5 , 6 is transported from the inlet 8 to the outlet 9, is bent alternately up and down on the upper and lower straightening rollers 5, 6 in order to eliminate tension and unevenness in the material.
  • upper and lower straightening rollers 5, 6 are each provided with upper support rollers 10 (only a small part of which can be seen) or lower support rollers 11 in the respective roller frame 1 acting in pairs on each straightening roller 5, 6 , 2 supported.
  • the support rollers 10, 11 are mounted in respective support roller blocks, the lower support roller blocks 14 being visible here only for the lower support rollers 11.
  • These lower support roller blocks 14 sit on a lower slide plate 15, which can be pulled out of the working area 4 of the straightening machine transversely to the working direction 7, in the present figures to the front (see FIG. 8).
  • the upper straightening rollers 5 are supported, among other things, on the operating side of the straightening machine that is visible here in an upper bearing strip 12, while the lower straightening rollers 6 are supported here in a lower bearing strip 13.
  • the present straightening machine is also equipped with an upper slide plate 16 which, supported by two upper slide plate supports 17, can be pulled out of the work area 4 of the straightening machine.
  • the lower slide plate 15 is also supported by two lower slide plate supports 18 when it is pulled out of the working area 4 of the straightening machine.
  • a releasable lock 19 each secures the lower and upper slide plates 15, 16 on the respective roller frame 1, 2 when the straightening machine is in operation.
  • a driver device 20 is attached to the lower bearing strip 13 at the inlet 8 and also at the outlet 9 and is equipped with pivotable clamping lugs 21 which are used to couple the upper bearing strip 12 to the lower bearing strip 13.
  • FIG 3 an embodiment of an interchangeable prism 22 present or used according to the invention is shown.
  • This is made of aluminum and consists essentially of a frame 23, which in turn is composed of two side profiles 24, 24 'and three connecting roller support strips 25, 25', 25 ".
  • the roller support strips 25 are provided with notches 26 upwards and downwards to accommodate straightening rollers , which is why these notches 26 are offset from one another on the top and bottom.
  • the lightweight construction of the example shown here for an interchangeable prism 22 enables this to be handled by hand and without further aids.
  • Figure 5 shows an embodiment for a holding bar 27, which is provided with receptacles 28 for the upper straightening rollers 5 (cf. Figure 6 ) is equipped and has two forcing bolts 29 and rotatable armature disks 31.
  • Figure 1 shows the starting position, ie the straightening machine, the working area 4 of which is shown here in a view of the operating side, is in an operational state. After straightening material is moved out of straightening gap 3, if necessary, it is initially carried out, as in FIG Figure 2 shown, the upper roller frame is raised in order to widen the straightening gap 3.
  • FIG. 5 shown holding bar 27 is how Figure 6 shows, with their receptacles 28 attached to the front ends of the upper straightening rollers 5 and the forcing bolts 29 of the retaining bar 27 are screwed into threaded bores 30 in the upper bearing bar 12 provided for this purpose.
  • the forcing bolts 29 are held on the retaining strip 27 by means of rotatable armature disks 31. This connection can be released by rotating the armature disks 31.
  • the lower slide plate 15 as shown in Figure 8 is shown, supported by two lower slide plate supports 18, pulled out transversely to the working direction 7 from the working area 4 of the straightening machine.
  • the lower slide plate 15 carries, like Figure 8 clearly shows the lower support roller blocks 14 with the lower support rollers 11 and the lower straightening rollers 6 resting thereon, the lower bearing strip 13 additionally being connected directly to the lower slide plate 15.
  • the lower straightening rollers 6 are thus moved out of the working area 4 of the straightening machine.
  • the armature disks 31 are then rotated and the retaining strip 27 removed and the clamping lugs 21 of the driver device 20 released, after which the in Figure 11 the situation shown.
  • the upper bearing strip 12 is now freely movable in the axial direction of the upper straightening rollers 5, so that it can be pulled out towards the front, cf. Figure 12 , and is finally removed, see FIG. 13.
  • the upper straightening rollers 5 can now be freely removed individually from above and can in particular be lifted out by means of a crane in order to be able to replace them, for example.
  • the upper straightening rollers 5 remain in the upper roller frame 1, and the lower slide plate 15 is pulled out of the working area 4 in the conventional manner.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP20191935.4A 2019-08-23 2020-08-20 Machine à dresser, agencement d'entretien et procédé permettant de rendre les rouleaux de dressage accessibles pour l'entretien d'une machine à dresser Active EP3782745B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019122749.6A DE102019122749A1 (de) 2019-08-23 2019-08-23 Richtmaschine und Verfahren zum Zugänglichmachen von Richtwalzen für die Wartung einer Richtmaschine

Publications (2)

Publication Number Publication Date
EP3782745A1 true EP3782745A1 (fr) 2021-02-24
EP3782745B1 EP3782745B1 (fr) 2022-06-01

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP20191935.4A Active EP3782745B1 (fr) 2019-08-23 2020-08-20 Machine à dresser, agencement d'entretien et procédé permettant de rendre les rouleaux de dressage accessibles pour l'entretien d'une machine à dresser

Country Status (4)

Country Link
EP (1) EP3782745B1 (fr)
CN (1) CN112404171A (fr)
DE (1) DE102019122749A1 (fr)
PL (1) PL3782745T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020117682A1 (de) 2020-07-03 2022-01-05 Kohler Maschinenbau Gmbh Richtmaschine und Verfahren zum Richten eines Metallbandes oder eines flächigen Metallteils

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008099126A2 (fr) * 2007-02-02 2008-08-21 Siemens Vai Metals Technologies Sas Procédé et dispositif de démontage des équipages de planage dans une planeuse a rouleaux multiples
WO2009043543A2 (fr) * 2007-09-27 2009-04-09 Kohler Maschinenbau Gmbh Dispositif à cassettes interchangeables pour machine à dresser, et procédé permettant de faire fonctionner une telle machine
EP2881187A1 (fr) * 2013-12-05 2015-06-10 Arku Maschinenbau Gmbh Planeuse à cylindres et procédé d'inspection, de maintenance et de remise en état d'une planeuse à cylindres
EP3248703A1 (fr) * 2016-05-23 2017-11-29 ARKU Maschinenbau GmbH Dresseuse-lamineuse comprenant des galets de dressage superieurs et inferieurs et procede rapide et simple d'inspection, d'entretien et de reparation des galets de dressage superieurs d'une dresseuse-lamineuse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008099126A2 (fr) * 2007-02-02 2008-08-21 Siemens Vai Metals Technologies Sas Procédé et dispositif de démontage des équipages de planage dans une planeuse a rouleaux multiples
WO2009043543A2 (fr) * 2007-09-27 2009-04-09 Kohler Maschinenbau Gmbh Dispositif à cassettes interchangeables pour machine à dresser, et procédé permettant de faire fonctionner une telle machine
EP2190603B1 (fr) 2007-09-27 2015-07-29 Kohler Maschinenbau GmbH Dispositif à cassettes interchangeables pour machine à dresser, et procédé permettant de faire fonctionner une telle machine
EP2881187A1 (fr) * 2013-12-05 2015-06-10 Arku Maschinenbau Gmbh Planeuse à cylindres et procédé d'inspection, de maintenance et de remise en état d'une planeuse à cylindres
EP3248703A1 (fr) * 2016-05-23 2017-11-29 ARKU Maschinenbau GmbH Dresseuse-lamineuse comprenant des galets de dressage superieurs et inferieurs et procede rapide et simple d'inspection, d'entretien et de reparation des galets de dressage superieurs d'une dresseuse-lamineuse

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020117682A1 (de) 2020-07-03 2022-01-05 Kohler Maschinenbau Gmbh Richtmaschine und Verfahren zum Richten eines Metallbandes oder eines flächigen Metallteils

Also Published As

Publication number Publication date
DE102019122749A1 (de) 2021-02-25
EP3782745B1 (fr) 2022-06-01
PL3782745T3 (pl) 2022-08-29
CN112404171A (zh) 2021-02-26
RU2020127873A (ru) 2022-02-21

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