EP0353428A2 - Dresseuse - Google Patents

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Publication number
EP0353428A2
EP0353428A2 EP89110540A EP89110540A EP0353428A2 EP 0353428 A2 EP0353428 A2 EP 0353428A2 EP 89110540 A EP89110540 A EP 89110540A EP 89110540 A EP89110540 A EP 89110540A EP 0353428 A2 EP0353428 A2 EP 0353428A2
Authority
EP
European Patent Office
Prior art keywords
straightening
straightening machine
housing
machine according
roll
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Withdrawn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
EP89110540A
Other languages
German (de)
English (en)
Other versions
EP0353428A3 (fr
Inventor
Heinz Hartkopf
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.)
TH Kieserling and Albrecht GmbH and Co
Original Assignee
TH Kieserling and Albrecht GmbH and Co
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 TH Kieserling and Albrecht GmbH and Co filed Critical TH Kieserling and Albrecht GmbH and Co
Publication of EP0353428A2 publication Critical patent/EP0353428A2/fr
Publication of EP0353428A3 publication Critical patent/EP0353428A3/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Withdrawn legal-status Critical Current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
    • 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
    • B21D3/04—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 skew to the path of the work

Definitions

  • the invention relates to a straightening machine with a roll changing device according to the preamble of claim 1.
  • Such straightening machines mostly consist of a two-part housing, namely an upper part and a lower part, which are connected to one another by tie rods.
  • the straightening process is carried out with a circumferential bend for the straightened goods.
  • a operational problem is the change of roles, or the associated effort and the resulting downtime.
  • the straightening rolls are usually changed together with the associated roll holder.
  • a roll changing device for a 2-roll straightening machine is known (DE-GM 69 33 905). There is shown an upper housing part and a corresponding lower part, on each of which a straightening roller is mounted in a roll holder. The upper part and lower part are connected by 4 tie rods, which are arranged in the corners of the upper and lower part. The straightening rollers are arranged one above the other and are accessible in the middle between the tie rods from the side of the machine. A support frame is moved from a table next to the straightening machine between the upper and lower part of the housing.
  • the straightening rollers are lowered with their roller holders onto the fork-shaped holder of the support frame, the connections to the drive shafts and the machine housing are released and the daytime frame is drawn on rails on the table next to the straightener.
  • a piston which moves a slide in the lower part of the housing in the vertical direction and which carries the roller holder so that the forks of the support frame can reach under the lower roller holder.
  • the invention has for its object to design a straightening machine and equip it with a reel changing device so that the lower reels can also be changed when there is no more space due to the spatial confinement between the reels and the tie rods of a straightening machine equipped with at least 4 reels to drive a sled between the rollers and the two housing parts and pull out the rollers with the roller holders.
  • This spatial narrowness can be due to the closed, tight sequence of the reel seat specified by technological considerations or to the special spatial conditions in the tool room of a straightening machine. It is particularly important that when a number of rollers are arranged on a housing part, they are partially arranged behind the tie rods and can no longer be simply pulled out to the side.
  • the solution to this problem is given in the characterizing part of claim 1.
  • the solution can be represented by pulling the roll holder over the table surface of the lower roll holder.
  • the centering means must be moved out of the joint between the table and the roll holder. This can be done by using any bolts that hold the reel seat and connect the lower part of the housing upwards or downwards out of the area of the parting line or by slightly lifting the roll holder so that it can be pulled up or down over the table on the centering means that protrude on its underside, e.g. 3 dowel pins, or - when inserting the new straightening rollers with holder - to be pushed.
  • the advantage of this solution is that no device has to be brought between the straightening roll holders for changing the straightening roll, but rather that the swivel arms are pivoted against the roll holder from the access side of the straightening machine and fastened there.
  • the roll holders are pulled from the table surface of the lower housing part onto the table standing next to the straightening machine in a circular path.
  • a suitable articulation of the swivel arm on the roll holder By means of a suitable articulation of the swivel arm on the roll holder, a combined translatory and rotary movement of the roll holder can also be generated on the two table surfaces.
  • two pins from the table surface of the lower housing part should engage from below in the roller holder arranged above, which in turn are mounted in a plate which can be rotated in the machine housing. These two or more pins are used to center the roll holder in the machine and, at the same time, allow angular adjustment of the straightening rolls together with their holders in inclined roll straightening machines.
  • Changing the straightening rollers also includes solving the drives which are usually provided in the form of cardan shafts.
  • drives which are usually provided in the form of cardan shafts.
  • quick couplings are provided on the drive shafts.
  • the machine housing in Forming a C-shape is preferably the two-part design with an upper part and a lower part, the connection of the two housing parts being formed primarily with tie rods which are circular in cross section, as pursued by claim 2 .
  • the table next to the straightening machine has the task of making it possible to transport it further with the usual equipment in the straightening companies, in particular the crane on the ceiling.
  • the table and the roll holder located on it must be accessible from above, as is pursued with claim 4 .
  • the roll holder is transported from the table surface of the lower housing part to the table arranged next to the straightening machine exclusively with the swivel arms, on the tie rods on the access side in whose swivel area both table surfaces are located.
  • the coupling piece is designed as a screw with which the swivel arm is rigidly attached to the roll holder.
  • the coupling piece can also be designed as a coupling which is articulated on the swivel arm and on the roll holder. It is also provided that this coupling piece acc. Claim 7 rigidly connected to the roll holder, and only to be articulated on the swivel arm.
  • the path of the roll holder to be changed is determined by the geometry of the swivel arm and the coupling piece, it is defined in any case and not left to chance. This is according to the development of the invention. Claim 9 taken into account, which provides a pre-positioning of the roll holder to be changed on the table next to the straightening machine. In particular, two stops on the table next to the straightening machine are intended, against which the roll holder to be replaced is placed on the same when being set down.
  • Claim 10 proposed to design the stop as a bolt, around which a half-shell-shaped recess is placed on the circumference of the roll holder and about which the not yet fully offset roll holder is pivoted until it rests on the second stop on the table next to the straightening machine.
  • FIG. 1 shows an oblique roller straightening machine 1 with a housing consisting of an upper part 3 and a lower part 4, with a group of straightening rolls 10, 11, 12 in roll holders 20, 21, 22 on the upper part 3 and a further group of straightening rolls 13, 14, 15 on the lower part 4 of the housing, which are mounted in roller holders 23, 24, 25.
  • the roles lie in a common vertical plane.
  • a table 6 is arranged in front of the machine, the table surface 16 of which is arranged at exactly the same height as the table surface 26 of the lower part 4 of the machine housing.
  • the upper part 3 and the lower part 4 of the machine housing are connected to one another by four access elements 7, 8, 17, 18.
  • On the tie rods 7, 8, swivel arms 44, 46, which are moved by servomotors 9, 19, are rotatably mounted on these enclosing sleeves, which are rotatably mounted thereon.
  • the tie rods 7, 8 serve the swivel arms 44, 46 as pivot bearings 42, 45.
  • the straightening rollers 13, 14 with their holders 23, 24 are in a circular path from the table surface 26 of the lower housing part 4 drawn on the table 6.
  • the swivel arm 44 carries coupling pieces 53, 54.
  • the swivel arm 44 moves the roller holders 23, 24 onto the table 6, which is freely accessible from above for a crane, into the change positions shown in broken lines 63, 64.
  • the swivel arm 44 is moved by the servomotor 9 and moved by hand or by limit switches into the position for receiving the roll holder located in the straightening machine and into the changing positions 63, 64.
  • a special feature is the swivel arm 46, which is articulated to the roll holder 25.
  • the swivel arm 46 pulls and swivels the roll holder 25 onto the table 6 into the position 65 shown in broken lines.
  • a trough serves as a coupling piece 55, the one grips vertical pin 62 on the roll holder 25 in a half-shell and articulated manner and initially only pulls the roll holder.
  • the roller holder 25 rests with a trough 61 on the tie rod 8 or the sleeve surrounding it and is swiveled on the table 6 from this point in a circular path.
  • the drives are released by disconnecting the quick couplings 33, 34, 35.
  • the roll holders 23, 24, 25 are detached from the lower part 4 of the machine housing (FIG. 3) for all three straightening roll holders 23, 24, 25 in the same way as is described below with reference to the straightening roll holder 24.
  • the straightening roller holder 24 is separated using the centering means 41, which consist of a plate 57 with dowel pins 27, 37 which are provided in bores 50, 60 on the underside of the roller holder 24.
  • the plate 57 is in the vertical direction, i.e. movable in the direction of arrow 49 in a bore 74 below the roller holder 24.
  • a toothing 56 is provided, with which the plate 57 can be pivoted in the lower part 4 of the housing.
  • a rack 59 is displaced in the direction of the arrow 58.
  • the rack 59 connects all three roll holders together. This swivel mechanism is used to adjust the angle of the straightening rollers to adapt to different diameters.
  • the plate 57 with the dowel pins 27, 37 is gem. arrow 49 lowered.
  • the dowel pins 27, 37 leave the bores 50, 60 and the horizontal parting line 36 between the roller holder 24 and the table surface 26 of the lower part 4 is free. In this position, the roll holder can be moved on the table surface 26 and thus also be replaced.
  • the roll change takes place in such a way that first the table 6, which is removable, as shown in FIG. 2, is placed in front of the straightening machine 1. After releasing the quick couplings 33, 34, 35, the circular plates 57 in each of the roller holders 23, 24, 25 are brought into a defined starting pivot position by a movement of the toothed rack 59 in the direction of the arrow 58. As soon as this is reached, the swivel arms 44, 46 are connected in succession with the coupling pieces 53, 54, 55 to the roller holders 23-25. With the lowering of the circular plates 57, the roll holders become displaceable and can be moved by the swivel arms 44, 46 onto the table 6 in the immediate vicinity next to the straightening machine 1. From there, the roll holder can be transported with the rolls using conventional means of transport, such as a crane, forklift or the like.
  • the new straightening roll holders which are to be installed in the straightening machine 1, are pre-positioned on the table by positioning means, which are formed by positioning pins 28, 38 in connection with stop surfaces 31, 32 on the roll holder 23.
  • stop surfaces 47, 48 are provided on the roller holder 24, which, if this is to be replaced, are brought into contact with the positioning pins 29, 39.
  • the replaced roll holder comes to a position in the end of the swiveling movement on the lower part 4, in which the dowel pins 27, 37 are arranged so precisely under the bores 50, 60 that they have a slight chamfer Find the protruding ends in the holes and fix the roll holder exactly according to position and rotational position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
EP19890110540 1988-08-04 1989-06-10 Dresseuse Withdrawn EP0353428A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883826504 DE3826504A1 (de) 1988-08-04 1988-08-04 Richtmaschine
DE3826504 1988-08-04

Publications (2)

Publication Number Publication Date
EP0353428A2 true EP0353428A2 (fr) 1990-02-07
EP0353428A3 EP0353428A3 (fr) 1990-10-10

Family

ID=6360230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890110540 Withdrawn EP0353428A3 (fr) 1988-08-04 1989-06-10 Dresseuse

Country Status (4)

Country Link
EP (1) EP0353428A3 (fr)
JP (1) JPH0280120A (fr)
DD (1) DD286309A5 (fr)
DE (1) DE3826504A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102133609A (zh) * 2011-01-30 2011-07-27 衡阳市伟力钢筋机械有限公司 具有延伸功能的下主动混合压轮式钢筋调直机
CN102133610A (zh) * 2011-01-30 2011-07-27 衡阳市伟力钢筋机械有限公司 具有延伸功能的全主动错开压轮式钢筋调直机
CN105081015A (zh) * 2015-09-15 2015-11-25 天津正安无缝钢管有限公司 一种钢管矫正装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102764799A (zh) * 2012-07-03 2012-11-07 安徽浙泰不锈钢集团有限公司 一种钢材矫正装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1411599A (fr) * 1964-10-15 1965-09-17 Siemag Siegener Masch Bau Dispositif auxiliaire pour le montage et le démontage des cylindres verticaux d'un laminoir universel pour le laminage de larges brames
DE1627454A1 (de) * 1967-07-31 1970-01-29 Arku Maschinen Und Appbau Artu Richtmaschine
DE6933905U (de) * 1969-08-27 1970-02-05 Kieserling & Albrecht Vorrichtung an richtmaschinen zum richten langgestreckter werkstuecke wie stangen oder rohre mit kreisfoermigem oder mit von der kreisform abweichendem querschnitt.
EP0054605A3 (fr) * 1980-12-20 1982-08-18 Th. Kieserling & Albrecht GmbH & Co. Machine à dresser à six rouleaux à dresser, ou davantage, disposés obliquement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102133609A (zh) * 2011-01-30 2011-07-27 衡阳市伟力钢筋机械有限公司 具有延伸功能的下主动混合压轮式钢筋调直机
CN102133610A (zh) * 2011-01-30 2011-07-27 衡阳市伟力钢筋机械有限公司 具有延伸功能的全主动错开压轮式钢筋调直机
CN105081015A (zh) * 2015-09-15 2015-11-25 天津正安无缝钢管有限公司 一种钢管矫正装置

Also Published As

Publication number Publication date
EP0353428A3 (fr) 1990-10-10
JPH0280120A (ja) 1990-03-20
DE3826504A1 (de) 1990-02-08
DD286309A5 (de) 1991-01-24

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