EP3268144B1 - Richtmaschine und verfahren zum wechseln von richtrollenelementen - Google Patents

Richtmaschine und verfahren zum wechseln von richtrollenelementen Download PDF

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Publication number
EP3268144B1
EP3268144B1 EP16708411.0A EP16708411A EP3268144B1 EP 3268144 B1 EP3268144 B1 EP 3268144B1 EP 16708411 A EP16708411 A EP 16708411A EP 3268144 B1 EP3268144 B1 EP 3268144B1
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EP
European Patent Office
Prior art keywords
change
straightening
path
roller elements
plane
Prior art date
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Active
Application number
EP16708411.0A
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German (de)
English (en)
French (fr)
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EP3268144A1 (de
Inventor
Markus Willems
Sebastian HAUSMANN
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
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SMS Group GmbH
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Filing date
Publication date
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Priority to PL16708411T priority Critical patent/PL3268144T3/pl
Publication of EP3268144A1 publication Critical patent/EP3268144A1/de
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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
    • 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
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
    • B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
    • 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
    • B21D37/147—Tool exchange carts

Definitions

  • the invention relates, on the one hand, to a straightening machine for straightening an elongate semifinished product with straightening roller elements, comprising a roller conveyor line comprising a straightening roller element relative to the conveyor track, comprising a drive-side stator half and an actuator-side stator half displaceable relative to the drive-side stator half, with a changing device for changing the Straightening roller elements and with an alternating path along which the straightening roller elements are movable for changing, in which the straightening roller elements extending on the one hand by means of the service-side stator half along a first extending in a horizontal displacement plane portion of the alternate path and on the other hand by means of the changing device along another extending in a horizontal plane of change Part of the alternate path are movable.
  • the invention relates to a method for changing straightening roller elements of a straightening machine for straightening a longitudinal semi-finished product conveyed along a conveying path of a roller table of the straightening machine, in which the straightening roller elements move sideways out of the horizontal direction of the straightening roller elements by means of an operating side half of a stator device holding the straightening roller elements Roller rail line or be shifted into the roller conveyor line, and in which the straightening roller elements are provided in a laterally arranged next to the roller table transfer position for changing.
  • straightening machines for straightening elongated semi-finished products or the like are well known from the prior art.
  • These straightening machines comprise tools, namely straightening roller elements, which are mounted and stored in sets in a stand device of the straightening machine.
  • This stand device comprises two stator halves, a drive-side stator half, which is connected substantially stationary to a drive of the straightening roller elements, and an operator-side stator half, which is opposite to the drive-side stator half radially to the roller table line of the straightener displaceable to open the stator device.
  • the straightening roller elements By means of the straightening roller elements, the elongate semifinished product is directed, while this is conveyed axially along a horizontal conveying path or horizontal straightening of a roller conveyor line of the straightening machine.
  • the straightening roller elements wear out gradually and must therefore be replaced from time to time with new straightening roller elements.
  • a change of the straightening roller elements in a product change if another elongated semi-finished product is to be addressed.
  • the upright device is opened by the operator-side stator half is displaced in the radial direction sideways towards the operating side with respect to the drive-side stator half.
  • the straightening roller elements are displaced laterally along a horizontal displacement plane by means of the operator-side stator half in the direction of the horizontal directional plane of the straightening path of the roller conveyor line.
  • the straightening roller elements are gripped by a gripper of a change manipulator of the leveler from above, from the horizontal direction plane upwards in a horizontal plane of change, which has a greater vertical height than the horizontal directional plane or the horizontal displacement plane, and thus removed from the operator-side stator half and in the horizontal changing plane is transported sideways over the operating side half of the rack towards the operating side.
  • new straightening roller elements are inserted in the reverse direction in the stand device and the straightening machine can begin their work with new straightening roller elements.
  • the object of the invention is a straightening machine for straightening an elongated semi-finished product with straightening rollers, with a conveyor track ausgestaltende roller conveyor, with a straightening roller elements opposite the conveyor line holding stand device comprising a drive-side stator half and a relation to the drive-side stator half displaceable user-side stator half, with a changing device for Changing the straightening roller elements and with an alternating path along which the straightening roller elements are movable for changing, solved, in which the straightening roller elements on the one hand by means of the service side stator half along a first extending in a horizontal displacement plane portion of the alternate path and on the other hand by means of the changing device along another in a horizontal change plane extending portion of the alternating path are movable, wherein the straightening machine dad urch distinguished that the horizontal plane of change in the region of the physical vertical extent of the operating side half of the stand is arranged.
  • the horizontal plane of change lies within the vertical extent of the operator-side stator half.
  • the operating side half of the frame penetrates the horizontal plane of change physically.
  • the straightening machine can be set up even in shallow building halls, the room height for changing devices with Kirmanipulatoren conventional design did not appear suitable.
  • alternating path in the sense of the invention describes a path between a working position of the straightening roller elements arranged in the roller table and a provision position arranged outside the stand device.
  • the first subsection of the alternating path is arranged between this working position and a transfer position arranged within the upright device, but outside the roller conveyor line.
  • the further subsection of the alternating path is arranged between this transfer position and the provisioning position, which is located outside the leveler.
  • a straightening roller element is preferably composed of straightening rollers, an associated mounting bushing and other supplements. This means that the straightening rollers are pre-assembled or preassembled on the mounting bushes.
  • the straightening rollers here are the actual tools of the straightening machine, which interact with the elongated semi-finished products or the like.
  • vertical extent in this case describes the physical height of the stand device, in particular the operator-side stand half of the stand device, which extends substantially perpendicular to the horizontal plane.
  • the alternating path is arranged completely within the vertical extension of the operating-side stator half.
  • the present horizontal change plane such as the horizontal displacement plane
  • the horizontal displacement plane is arranged substantially at the same vertical height, on which, for example, the horizontal conveying path of the roller conveyor line or the horizontal directional plane is located.
  • the horizontal displacement plane and the horizontal plane of change can also be arranged vertically offset from each other within a certain frame. As a tolerable measure of this may be indicated when the horizontal displacement plane and the horizontal plane of change are spaced apart by a vertical distance which is less than a diameter of the straightening roller elements. As a rule, the vertical distance is then less than 100 mm, for example.
  • the changing device comprises changing hurdles, by means of which the straightening roller elements along the horizontal plane of change as a set of rollers on the upright device sentencewise available.
  • the straightening roller elements can be advantageously replaced compactly in a substantially horizontal direction.
  • change hurdle in the context of the invention describes any device on which one or preferably as roller set several straightening roller elements can be stored for transport purposes. Often such change hurdles associated with straightening machines are also referred to as cassettes.
  • a preferred embodiment provides that the changing device at least one longitudinal transport with a parallel to the conveying path of the straightening machine extending longitudinal support track, wherein the longitudinal transport is at least partially disposed between the drive-side stator half and the user-side stator half. This ensures that the longitudinal transport extends at least in the region of the stand device mainly in the direction of the conveying path.
  • the change hurdles of the changing device can thereby extremely easy to cooperate with the stand device, since the straightening roller elements can be passed from the user-side stand half to the respective change hurdle constructive very easy, or vice versa.
  • this longitudinal transport is a change hurdle longitudinal transport or a straightening roller element or roller set longitudinal transport.
  • longitudinal transport in the context of the invention refers to a device whose main transport direction preferably runs essentially parallel to the conveying path of the roller conveyor line.
  • a straightening roller transfer between a change hurdle and the operator-side stand half can be structurally further simplified if the longitudinal support section is at the same or approximately the same vertical height of the horizontal plane of change.
  • the longitudinal support section lies approximately at the same vertical height of the horizontal alternating plane.
  • a vertical height difference of about 100 mm or less is easily possible.
  • the longitudinal support section only has to extend from a single side into the upright device in order to be able to arrange the respective change hurdle in the transfer position between the drive-side upright half and the service-side upright half.
  • the longitudinal support section is arranged through the upright device, since the longitudinal transport can thereby be arranged on both sides of the upright device.
  • the longitudinal support section is connected on both sides to the stand device.
  • an inlet-side longitudinal support section section by means of which a fitted with new straightening roller elements change hurdle between the drive-side stator half and the operator-side stator half can retract horizontally.
  • an outlet-side longitudinal support stretch section can be realized, by means of which a change hurdle equipped with used straightening roller elements can be extended horizontally out of the upright device.
  • the changing device comprises a transverse transport with a transverse transport path, by means of which the straightening roller elements can be delivered to a longitudinal transport of the changing device.
  • the transverse transport by means of the longitudinal transport with the stand device operatively connected, so that the change hurdles can be passed easily between the transverse transport and the stand device.
  • the longitudinal support section and the transverse transport path along a horizontal plane are arranged to extend.
  • the interchangeable hurdles can be moved mainly along the horizontal plane, so that lifting of the leveling roller elements to a vertical height level beyond the pedestal device can be completely avoided.
  • the stand device in particular the operating-side stand half, has a receptacle for receiving a change hurdle, so that the change hurdle along the first section of the Alternating path in the displacement plane sideways to the roller conveyor line is displaced.
  • a change hurdle can be provided, bypassing the longitudinal transport, so that the used straightening roller elements can be stored more quickly from the operator-side half of the stand to the change hurdle.
  • Particularly space-saving recording can be integrated into the leveler when the recording in the roller conveyor line can be arranged below the conveyor line.
  • the object of the invention is also achieved by a method for changing straightening roller elements of a straightening machine for straightening an elongated semi-finished product conveyed along a conveying path of a roller table of the straightening machine, in which the straightening roller elements travel horizontally by means of an operator-side stator half of a stator device holding the straightening roller elements with respect to the conveyor track Displacement plane are shifted sideways out of the roller conveyor line or in the roller conveyor line, and in which the straightening roller elements are provided in a laterally arranged next to the roller transfer line transfer position, wherein the method is characterized in that the straightening roller elements in this transfer position of the operating side stand half a change hurdle or vice versa are handed over, and wherein the change hurdle along a horizontal plane of change in the transfer position hine is moved in or out of the transfer position.
  • the present method can be performed with a significantly lower vertical height than heretofore possible, thus increasing the variety of potential job sites where the leveler is installed and can be operated significantly increased.
  • the change hurdle is moved along the horizontal change plane between the operator-side stator half and one of the actuator-side stator half opposite, drive-side stator half of the stator device.
  • the respective change hurdle can be moved in a structurally particularly simple horizontal manner into the straightening machine or out of the straightening machine.
  • the change hurdle is moved in alignment with the conveying path into the transfer position or out of the transfer position, since the change hurdle can thereby also be moved parallel to the longitudinal orientation of the stand device.
  • a straightening roller change can be made particularly quickly when the straightening roller elements are exchanged sentence by bit as a set of rollers at the transfer position by means of a change hurdle.
  • a particularly advantageous variant of the method provides that the change hurdles is moved when the stand device between the drive-side stator half and the service-side stand half, then the change hurdle is moved by means of the operator-side stand half in the roller conveyor line and placed below the conveyor line, while directed by the straightener an elongated semi-finished becomes.
  • the change hurdle remains during production in the straightening machine between the two stator halves and is moved during the straightening roll change together with the service-side stand from the roller conveyor line and then moved parallel to the conveying direction of the straightening machine with the used straightening roller elements from the straightening machine. Subsequently, an already built change hurdle is driven with new straightening roller elements in the leveler and moved together with the service-side stand in roller conveyor line, where the change hurdle during production also remains again. As a result, a change hurdle for receiving used straightening roller elements can be provided particularly quickly on the straightening machine.
  • the straightening roller elements are already placed on the change hurdle when the change hurdle is displaced sideways out of the roller conveyor line together with the operator-side stand half.
  • the construction of the leveler can be significantly simplified.
  • a further time savings can be achieved, whereby the straightening machine is ready for use more quickly.
  • Possible concrete variants which are possible in the sense of the invention, could be as follows: With regard to a first variant of a change concept with moveable change hurdles, on the one hand, a suitably mounted change hurdle with new straightening roller elements or mounting bushes / straightening rollers and, on the other hand, an empty change hurdle for receiving the straightening roller elements, which were still in use, parallel to the roller table of the straightening machine in an inlet region, So inlet side, and in an outlet area, ie the outlet side, the straightening machine or its stand device on rails a rail track of the longitudinal transport ready. The operator-side stand half of the stand device moves radially so far until the straightening roller elements are in alignment with the available change hurdles.
  • the empty change hurdle With a sufficiently large air gap between lower guide rods and transport rings of the lower mounting bushes of the straightening roller elements in the open stator device of the leveler. Additional threading aids on the stand device in the entry or exit area can in particular align upper guide bars on an upper support of transport rings of lower assembly sockets.
  • the distance between the upper guide rods to lower supports in the empty state of the change hurdle corresponds approximately to the distance of the upper and lower bearing surfaces, taking into account the air gap (outstanding stroke) of the exchange hurdle.
  • chocks can be lowered with upper mounting bushes until upper transport rings rest on upper guide rods.
  • a gripping mechanism of holding elements for holding the mounting bushes on the operating side half of the stand can be solved, and the operating side half of the stand continues to drive until the centering of straightening shafts has moved completely out of the mounting bushing.
  • the change hurdle is lowered again to the rails.
  • the changing hurdle loaded with the used straightening roller elements now moves backwards out of the open stator device of the straightening machine to its initial position.
  • the change hurdle pre-assembled with the straightening rollers moves with the new straightening roller elements into the still open Stand device of the leveler into it.
  • the change hurdle is raised.
  • the operator-side half of the stand continues to move until the straightening shafts are centered in the new mounting bushings of the new straightening shaft elements.
  • the gripping mechanism grabs the mounting bushes and pulls them to the operating side half of the stand.
  • the emptied change hurdle is lowered in mm down to rails.
  • the upper chocks are raised so that the contact between the transport rings of the upper mounting bushes and the upper guide rods is released.
  • the guide rods are only on the lower transport rings.
  • the emptied change hurdle can drive backwards out of the open stand device back to its original starting position.
  • the gripping mechanism for holding the mounting bushes on the operator-side stand half can be released again.
  • the leveler is ready for production again.
  • an empty change hurdle for receiving the straightening roller elements to be changed and an already pre-assembled for installation of the new straightening roller elements in the inlet and outlet area of the leveler can be arranged, which then only parallel to the roller conveyor line on the same longitudinal support distance in the opposite sense in the direction drive the open stand device in and out of the straightening machine.
  • the change hurdles drive only from one side, ie either from the inlet area or from the outlet area, forth in the open stand device of the leveler and then also proceed on a common substructure or stage transversely to the roller conveyor line be used to position the required change hurdle accordingly.
  • straightening machine 1 shown serves for straightening elongated semi-finished products (not shown), such as elongate profiles, carriers, such as high-speed rails, or the like.
  • the straightening machine 1 shown is a horizontal roller straightening machine (not separately numbered) of the type CRS® (Compact Roller Straightener).
  • the straightening machine 1 comprises a roller conveyor line 3 extending in the longitudinal direction 2 of the straightening machine 1, which defines a conveying path 4 of the straightening machine 1, along which the elongated semi-finished product is conveyed through the straightening machine 1 according to the axial conveying direction 5.
  • the straightening machine 1 comprises a plurality of straightening roller elements 6 (numbered only by way of example). These straightening roller elements 6 are held in a known manner in a stand device 7 of the straightening machine 1 in a working position 8 in the roller conveyor line 3, that the elongated semi-finished product is directed in the desired manner when passing through the straightening machine 1.
  • the straightening roller elements 6 sit at least in this embodiment of receiving bushes 6A and the actual straightening rollers 6B (see only Figures 2 and 3 ), wherein the straightening rollers 6B directly in operative contact with the elongated semi-finished product and therefore subject to wear. In this respect, there is the need to exchange these straightening roller elements 6 on the straightening machine 1 as a function of wear.
  • An exchange of the straightening roller elements 6 can be cumulative or alternatively also depending on an elongate semi-finished product to be straightened, for example if the straightening machine 1 is to be converted to another elongated semi-finished product.
  • the roller table line 3 is therefore guided by the straightening roller elements 6 arranged and held one behind the other in the upright device 7, and further on the other hand by an inlet roller table 9, which - seen in the axial conveying direction 5 - is arranged in front of the stand device 7, and by an outlet roller table 10, which - seen in the axial conveying direction 5 - placed behind the upright device 7, given.
  • the straightening machine 1 further comprises a drive 15 for driving the individual straightening roller elements 6, which is arranged radially, ie in the radial direction 16, spaced from the upright device 7 and thus laterally next to the upright device 7. Since the drive 15 coupled to the individual straightening roller elements is well known from the prior art, this will not be discussed further.
  • the upright device 7 has a drive-side stator half 17 and an operator-side stator half 18.
  • the drive-side stator half 17 is in this case arranged substantially stationary with respect to the roller table line 3.
  • the operator-side stator half 18 is radially displaceable to the roller conveyor line 3 and thus also arranged to the drive-side stator half 17, so that the stator device 7 in the radial direction 16, ie transverse to the conveyor section 5, can be opened to better replace the straightening roller elements 6 can (cf. Figures 2 and 3 ).
  • the number of holding elements 19 on the operating-side stand half 18 (only exemplified, see FIG Figures 2 and 3 ) held or mounted straightening roller elements 6 by means of this operator-side stand half 18 along a horizontal displacement plane 20 radially to the conveyor section 4 from the roller conveyor line 3 movable out and positioned in a radially adjacent the roller table 3 arranged transfer position 21 into it.
  • the straightening machine 3 comprises a changing device 25 for changing the straightening roller elements 6.
  • This changing device 25 has at least one longitudinal transport 26, which extends in this embodiment exactly parallel to the conveying path 4 of the leveler 1.
  • This longitudinal transport 26 has a parallel to the conveyor section 4 of the leveler 1 extending longitudinal support section 27, which at least when open stand device 7 (see. Figures 2 and 3 ) passes through the stator device 7 passes.
  • the longitudinal transport 26 is at least partially disposed between the drive-side stator half 17 and the operator-side stator half 18, at least when the stand device 7 is opened accordingly, so that a change of the straightening roller elements 6 in the sense of the invention can take place.
  • the longitudinal support section 27 is formed in this embodiment as a rail track 28.
  • the straightening machine 1 includes changing hurdles 30, on which the straightening roller elements 6 can be discontinued in sets as sets of rollers 31 (only exemplified).
  • These change hurdles 30 can advantageously be positioned parallel to the conveying path 4 or the roller conveyor line 3 by means of the longitudinal transport 26 along a horizontal changing plane 32 between the drive-side stator half 17 and the operating-side stator half 18.
  • the interaction between the stand device 7 and the change hurdles 30 is structurally simple in that the horizontally extending displacement plane 20 and the horizontally extending change plane 32 lie essentially at the same vertical height 33, the vertical height 33 being shown in FIG FIG. 1 is arranged perpendicular to the sheet plane.
  • the present leveler 1 is characterized by an alternating path 35, which has a first section 36 extending in the horizontal displacement plane 20 and which has at least one further section 37 extending in the horizontal plane of change 32.
  • the first section 36 of the change path 35 extends here between the working position 8 of the leveler 1 and the transfer position 21 of the leveler 1 and is realized by the radial travel 38 of the operator-side stand half 18.
  • the further section 37 of the changing path 35 extends here between the transfer position 21 of the straightening machine 1 and another supply position (not shown here) outside of the straightening machine 1 and is realized by an axial, other travel 39 of the changing device 25 and the longitudinal transport 26 thereof.
  • the alternating path 35 more precisely at least the two subsections 36 and 37 of this alternating path 35, extends along a horizontal plane (not separately numbered), preferably the horizontal alternating plane 32, which coincides approximately with the plane of the page.
  • the changing device 25 in contrast to the known Krumanipulatoren (not shown) of conventional straightening machines - extremely flat, so that hereby Equipped straightening machines 1 can be installed even in low-building operating buildings.
  • the changing device 25 can in this case be made sufficiently flat when the horizontal plane of change 32 extends within the vertical extension 40 of the operating side half 18, as a result, the straightening rollers 6 can be moved in particular parallel to the conveyor section 4 of the leveler 1 by the stator device 7.
  • an empty change hurdle 30 is parked by way of example, by means of which, for example, a used roller set 31 can be picked up from used straightening roller elements 6 from the upright device 7.
  • a change hurdle 30 with a new set of rollers 31 is arranged on straightening roller elements 6.
  • This is a fresh set of rollers 31 arranged in the transfer position 21, which can be used on the leveler 1.
  • another example is a change hurdle 30 with a used set of rollers 31 placed on used straightening roller elements 6.
  • the change hurdles 30 are retracted only during the straightening roller change in the straightening machine 1, in each case a change hurdle 30 is moved in addition to the inlet and outlet roller table 9 and 10 of the straightening machine 1 parallel to the axial conveying direction 5.
  • a change hurdle 30 is moved in addition to the inlet and outlet roller table 9 and 10 of the straightening machine 1 parallel to the axial conveying direction 5.
  • the operator-side stator half 18 moves together with the straightening roller elements 6 to be changed transversely to the axial conveying direction 5 out of the roller conveyor line 3.
  • an empty change hurdle 30 moves parallel to the roller conveyor line 3 in the raised with respect to the stand device 7 straightening machine 1, takes over the used straightening rollers 6B with the mounting sockets 6A and drives Then back to the starting position on the output side 42 of the transfer position 21.
  • the second change hurdle 30 with the already mounted on mounting bushes 6A straightening rollers 6B from the other side, ie input side 41, retract into the straightening machine 1 and the new straightening roller elements 6 to the operator-side stand half 18 handed over. Subsequently, this second change hurdle 30 likewise returns to its previous starting position, that is to say on the input side 41. Finally, the operator-side stand half 18 moves together with the mounting bushes 6A / straightening rollers 6B back into the roller conveyor line 3 and in the working position 8. Thus, the change of the straightening roller elements 6 is constructively and procedurally very simple.
  • the straightening roller elements 6 have been transferred in the transfer position 21 of the operator-side stand half 18 to the change hurdle 30 or vice versa, the change hurdle 30 along the horizontal change plane 32 in the transfer position 32 into or out of the transfer position 32 has been moved out.
  • the changing device 25 of the leveler 1 is alternatively equipped with a transverse transport 50.
  • the transverse transport 50 comprises a transverse support section 51, which is connected to the longitudinal support section 27 of the longitudinal support 26.
  • the transverse transport 50 is operatively connected by means of the longitudinal transport 26 with the upright device 7 of the straightening machine 1.
  • the transverse support section 51 is at the vertical height 33 of the horizontal plane of change 32, so that a transfer of a change hurdle 30 from the transverse transport 50 to the longitudinal transport 26 or vice versa is easily possible.
  • the stand device 7 can also be operated only from a single page.
  • the change hurdles 30 are driven only during the actual straightening roller change in the straightening machine 1, but two change hurdles 30 either input side 41 or output side 42 (see. FIG. 1 ) are positioned on a common stage 53 which can be moved in the transverse direction 52 to the longitudinal support section 27 in order to additionally be moved parallel to the conveying path 4 after transfer to the longitudinal transport 26.
  • the straightening roller change is basically similar to the first in the FIGS. 1 to 3 shown embodiment, but in which in the FIG. 4 shown further embodiment, the change hurdles 30 either only on the input side 41 (see in particular FIG. 1 ) or only on the output side 42 (see in particular FIG. 1 ) are placed in order to possibly realize the present change concept even in extremely confined spaces.
  • the present leveler 1 is still modified to the effect that below the conveyor section 4 and below the working position 8, a receptacle 60 for a change hurdle 30 is present.
  • This change hurdle 30 remains during production in the straightening machine 1 between the two stator halves 17 and 18 and is moved at a straightening roller change together with the operator-side stand half 18 from the roller conveyor line 3 and then parallel to a material flow of an elongated semi-finished with used straightening roller elements 6 and used Mounting bushes 6A / straightening rollers 6B moved out of straightening machine 1.
  • a vor foundede already with new straightening roller elements 6 change hurdle 30 is driven into the leveler 1 and moved together with the service-side stand 18 in roller conveyor line 3, where the change hurdle 30 remains stationary during production again in the stator device 7.
  • a change hurdle 30 for receiving used straightening roller elements 6 can be provided particularly fast on the straightening machine 1.
  • the straightening roller elements 6 can at least partially already be deposited on the change hurdle 30, while the change hurdle 30 is displaced sideways out of the roller slide line 3 together with the operator-side stator half 18.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
EP16708411.0A 2015-03-09 2016-03-08 Richtmaschine und verfahren zum wechseln von richtrollenelementen Active EP3268144B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16708411T PL3268144T3 (pl) 2015-03-09 2016-03-08 Prostownica i sposób wymiany prostujących elementów rolkowych

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015002887.1A DE102015002887B4 (de) 2015-03-09 2015-03-09 Richtmaschine und Verfahren zum Wechseln von Richtrollenelementen
PCT/EP2016/054850 WO2016142362A1 (de) 2015-03-09 2016-03-08 Richtmaschine und verfahren zum wechseln von richtrollenelementen

Publications (2)

Publication Number Publication Date
EP3268144A1 EP3268144A1 (de) 2018-01-17
EP3268144B1 true EP3268144B1 (de) 2019-05-08

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Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL3248703T3 (pl) * 2016-05-23 2019-01-31 Arku Maschinenbau Gmbh Prostowarka walcowa z górnymi i dolnymi walcami prostującymi oraz sposób prostego i szybkiego wykonywania przeglądów, konserwacji oraz serwisowania górnych walców prostujących prostowarki walcowej
CN109926465B (zh) * 2017-12-15 2021-01-05 达涅利机械设备股份公司 用于金属产品的矫直装置和更换所述装置的至少一个矫直辊的方法
CN110695218A (zh) * 2019-09-17 2020-01-17 湖南大捷智能装备有限公司 一种双台面换模台车及其换模方法
CN111790774B (zh) * 2020-07-28 2022-04-01 太原科技大学 一种多线孔型型钢矫直机换辊底座
CN111760937B (zh) * 2020-07-28 2022-05-17 太原科技大学 一种能快速换辊的多线孔型型钢矫直机
CN112427490A (zh) * 2020-11-30 2021-03-02 中冶华天工程技术有限公司 一种成排矫直机自动换辊系统
CN112427489A (zh) * 2020-11-30 2021-03-02 中冶华天工程技术有限公司 一种成排矫直机自动换辊工艺
CN112756429B (zh) * 2020-11-30 2024-06-25 中冶华天工程技术有限公司 一种操作侧机架移动式矫直机组合机架
CN112570494B (zh) * 2020-12-31 2024-08-27 中钢集团西安重机有限公司 一种整体换辊托架及其使用方法
CN112570501B (zh) * 2020-12-31 2024-08-27 中钢集团西安重机有限公司 一种压上式矫直机
DE102021210458A1 (de) 2021-09-21 2023-03-23 Sms Group Gmbh Richtmaschine sowie Verfahren zum Richten

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1080295A1 (ru) * 1981-06-12 1996-05-20 Колпинское отделение Всесоюзного научно-исследовательского и проектно-конструкторского института металлургического машиностроения Роликовая машина для правки полосового проката
DE4234732A1 (de) * 1992-10-15 1994-04-21 Schloemann Siemag Ag Walzgerüst
DE4308744A1 (de) * 1993-03-19 1994-09-22 Schloemann Siemag Ag Richtmaschine, insbesondere zum Richten von Blechen und Bändern
JP2985742B2 (ja) 1995-07-13 1999-12-06 トヨタ車体株式会社 カウルルーバの取付け構造
JPH09248626A (ja) * 1996-03-18 1997-09-22 Nippon Steel Corp 矯正機におけるロール組替え方法
DE19701235A1 (de) * 1997-01-16 1998-07-23 Schloemann Siemag Ag Walzstraße
JPH11123417A (ja) * 1997-10-22 1999-05-11 Mitsubishi Heavy Ind Ltd チョックレス圧延機のロール組替方法及び装置
IT1312100B1 (it) * 1999-04-28 2002-04-04 Techint Spa Raddrizzatrice per prodotti ferrosi laminati con spalle apribiliorizzontalmente per il cambio rapido dei rulli.
US6691544B2 (en) * 2001-08-10 2004-02-17 U.S. Properties, Inc. Method and apparatus to uncoil and dekink coiled material
US6910360B2 (en) * 2001-10-23 2005-06-28 L&P Property Management Company Multiple wire feed for spring coiling machine and method
US7096702B2 (en) * 2003-06-06 2006-08-29 U.S. Rollformers Adjustable multi-axial roll former
RU2368442C2 (ru) * 2007-10-16 2009-09-27 Общество с ограниченной ответственностью "Уралмаш-Инжиниринг" Устройство для замены роликов правильной машины
CN201140198Y (zh) * 2007-12-29 2008-10-29 中冶东方工程技术有限公司上海分公司 一种轧机
CN102172632B (zh) * 2011-01-24 2012-10-03 中冶赛迪工程技术股份有限公司 可快速换辊的轧机及其换辊方法
CN202283548U (zh) * 2011-11-07 2012-06-27 一重集团大连设计研究院有限公司 大型型钢轧机轧辊拆装机
CN202963107U (zh) * 2012-12-12 2013-06-05 襄阳博亚精工装备股份有限公司 矫直机辊系快开、换辊多用装置
CN104096713B (zh) * 2014-07-09 2016-03-09 常州宝菱重工机械有限公司 在线换辊装置

Non-Patent Citations (1)

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

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US10603704B2 (en) 2020-03-31
PL3268144T3 (pl) 2019-10-31
RU2689019C2 (ru) 2019-05-23
CN107405662B (zh) 2020-01-03
DE102015002887A1 (de) 2016-09-15
ES2741355T3 (es) 2020-02-10
EP3268144A1 (de) 2018-01-17
US20180036779A1 (en) 2018-02-08
RU2017128427A3 (es) 2019-04-09
DE102015002887B4 (de) 2017-05-11
CN107405662A (zh) 2017-11-28
RU2017128427A (ru) 2019-04-09
WO2016142362A1 (de) 2016-09-15

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