EP0012829A1 - Machine de redressage - Google Patents

Machine de redressage Download PDF

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Publication number
EP0012829A1
EP0012829A1 EP79104472A EP79104472A EP0012829A1 EP 0012829 A1 EP0012829 A1 EP 0012829A1 EP 79104472 A EP79104472 A EP 79104472A EP 79104472 A EP79104472 A EP 79104472A EP 0012829 A1 EP0012829 A1 EP 0012829A1
Authority
EP
European Patent Office
Prior art keywords
straightening
workpiece
rollers
roller
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
EP79104472A
Other languages
German (de)
English (en)
Other versions
EP0012829B1 (fr
Inventor
Horst Schneider
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
Priority to AT79104472T priority Critical patent/ATE2302T1/de
Publication of EP0012829A1 publication Critical patent/EP0012829A1/fr
Application granted granted Critical
Publication of EP0012829B1 publication Critical patent/EP0012829B1/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
    • 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

Definitions

  • the invention relates to a straightening machine according to the preamble of claim 1.
  • Straighteners of this type are widely used for their simplicity and for a number of known advantages.
  • a decisive disadvantage of this type of straightener is that it only straightens in one plane.
  • a workpiece that is curved in two planes must therefore be sent twice through such a straightening machine in order to obtain the desired straightness.
  • these straightening machines are mainly used for straightening workpieces with an angular cross-section, since no other continuous straightening machines have proven themselves.
  • the problem with this use is to feed the workpiece in such a way that its plane of curvature and the plane of the machine coincide. Until now, this assignment could only be carried out by an operator or a manipulator. It was not only important that the straightening plane and the plane of curvature coincide, it also had to be ensured that the curvature had the correct sign with respect to the roller arrangement in the straightening machine. If the curvature of the workpiece corresponds to the effective curvature of the second roller of the straightening machine, if the existing curvature of the workpiece corresponds to or even exceeds the curvature imparted in the first bending triangle, the first bending triangle of the straightening machine is ineffective, so the straightening machine works less effectively.
  • the invention is therefore based on the object Simplify the feeding of bars and wire to the straightening machines mentioned at the beginning and improve the straightening result.
  • the now partially plastic bending of the aligned workpiece which is brought about by the further lowering of the second roller, is carried out with the hydraulic cylinders.
  • the straightening machine according to the invention enables automatic feeding; at the same time, it is ensured that the increased curvature of the workpiece in the first three straightening rollers means that this bend is fully effective for the straightness result.
  • the prismatic design of the support means acc. Claim 2 represents a further possible advantageous embodiment of the invention.
  • the choice of prisms as support means for centering the workpieces and their mobility according to the displacement of the straightening rollers ensures free lateral access to the straightening rollers.
  • Claim 3 offers various advantages in the loading of the straightening machine and allows retrofitting existing straightening machine with a feeder or feeder. Even with new machines it can make sense to separate the driver and the actual. leveler. Then most straightening machines of the type mentioned at the beginning offer the possibility of loading them from any side.
  • the feature of claim 4 allows an optimal design of the degree of plasticization of the workpiece between the first three straightening rollers and the required deflection, so that the workpiece finds its way between the subsequent straightening rollers
  • the feature of claim 5 can be provided.
  • the large stroke of the second roller is necessary for two reasons, firstly because a large path is required for centering the workpiece and secondly because the first three rollers of a straightening machine designed according to the invention have to bend the workpiece the most anyway.
  • the first three rollers of the straightening machine according to the invention are all driven, even if they are constructed as separate feed devices.
  • the feature of claim 7 can be provided.
  • the width of the opening for the lateral feeding of the workpiece is increased without unnecessarily increasing the stroke of the second roller 15 and thus the entire machine frame.
  • FIG. 1 shows a straightening machine 1 with a multiplicity of straightening rollers 2 to 8 which are rotatably arranged in the vertical plane and whose axes of rotation 52 are arranged at right angles to the direction of passage (arrow 12). Arrow 12 simultaneously indicates the machine center van.
  • the straightening rollers have a profile 11 on their circumference (FIG. 6).
  • the straightening rollers 2 to 8 are profiled round, while the first three straightening rollers 14 15, 16 are prismatically profiled.
  • the straightening rolls 2, 4, 6, 8 arranged above are rotatably mounted and driven in rotation in a common crosshead 13. The crosshead adjusts these straightening rollers radially towards the workpiece 23 with the aid of spindles 41, 42.
  • the lower straightening rollers 3.5 7.14 are stationary and have rotary drives in the machine frame.
  • the straightening roller 16 is accommodated in the machine frame so as to be displaceable in the direction of passage (arrow 53).
  • the straightening roller 15 is received in a fork-shaped holder 30 which is actuated by a cylinder 33 with a piston rod 29.
  • the cylinder 33 is attached to a cantilever plate 28 which protrudes from the machine frame 27. This mounting of the straightening rollers ensures a C-shaped machine structure and thus lateral feeding of the workpieces between the straightening rollers, in particular between the first three straightening rollers.
  • the second straightening roller 15 has a quick adjustment device 18 (see FIG. This consists of the hydraulic cylinders 33, 34, a pneumatic cylinder 35, two storage vessels 36, 37 for the hydraulic fluid, two electromagnetically actuated switching valves 39, 40 and a limit switch 38.
  • the limit switch and the switching valves are connected by electrical lines 54, 55. Compressed air is supplied to the x system via the switching valve 39 or the same can escape through the switching valve.
  • the hydraulic output 36, 37 are connected with their lower output to the cylinders 34, 33 and take up displaced hydraulic fluid from the latter.
  • the upper outputs of the hydraulic accumulators are connected to the switching valve 39, as are both chambers of the pneumatic cylinder 35. At the lower output of the hydraulic accumulator 36, the switching valve 40 is provided, with which this output can be opened and closed.
  • a control bevel 56 is provided on the roll holder 30, with which the limit switch 38 is actuated.
  • lateral support means 19 to 22 are provided for the workpiece 23. These are widely protruding opposite prisms that center the workpiece when moving together.
  • the lower prisms 19 and 22, which surround the lower rollers 14 and 16, are movable radially to the workpiece.
  • the prisms 11 of the rollers and the associated support elements are aligned and complement one another in the illustration according to the figures 2 to 6.
  • the support prism 20, 21, seen on the second roller 15 4 in the direction of passage) is of divided design.
  • the bevel of this prism on the machine stand side is integrally formed on the roller holder 30 as a continuation thereof.
  • the support 20 with the associated slope of the prism is articulated on the open, ie on the feed side of this prism, with a joint 24 on a web of the roller holder.
  • the axis of rotation of this joint corresponds in its orientation 9.10 - the axes 9.10 of the straightening rollers.
  • the support 20 can be folded upwards for the lateral insertion of the workpiece 23.
  • a cylinder 31 is provided which actuates the foldable support 20, thereby expanding the lateral opening between the rollers 15 and 16 and thus facilitating the lateral feeding of the workpiece.
  • the support 20 When the support 20 is folded down, there is a passage cross section for the workpiece, which tapers like an aperture when the straightening rollers are moved together, in which the workpiece is centered until the rollers themselves grip the workpiece, in order then to begin with the actual axial transport of the workpiece.
  • the support 20 is folded down until it comes to rest against the stop 43 and forms a prism together with the roller holder support 21.
  • the straightening rollers 14 to 16, together with the C-shaped machine frame carrying them, are designed as an independent machine unit 25 and are arranged on the inlet side of the straightening machine. They can be arranged on any side of the remaining part of the leveler. This means that the straightening machine can be loaded from any side and direction.
  • the roller 16 In order to match the required deflection of the workpiece with the distance to the roller 2 following in the direction of passage, the roller 16 is guided in the machine stand 27 so as to be horizontally displaceable.
  • the workpiece 23 experiences its strongest bend between the first three rollers. Because of the resulting strong inclination of the workpiece start, special measures are required in individual cases so that the workpiece finds its way between the next straightening rollers during axial feed.
  • the rollers 14 and 16 are set lower, so that the base of their circumferential profile is arranged by the dimension "S" below the machine center 26.
  • All straightening rollers are driven as shown in the example of straightening rollers 15, 16 with the horizontal axes of rotation 9, 10 in FIG. 6. This takes place via a motor 47 standing on a table 48, which transmits the necessary drive torque to the straightening rollers via a gear 46.
  • the latter are connected to the gear 46 by means of cardan shafts 49, 50.
  • the cardan shafts extend through the machine stand 27 in a rear recess 51.
  • the roll holder 44 of the lower roll 16 is supported on a bracket 45.
  • the dimension "S" by which the effective circumferential surface of the rollers 14 and 16 is offset relative to the subsequent rollers 3, 5, 7 on the same side of the workpiece, is designed so that the workpiece with the greatest area moment of inertia that the to Straightening required plasticization is obtained by bending through the first three straightening rollers 14, 15, 16, just between straightening rollers 2 and 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Paper (AREA)
  • Confectionery (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Removal Of Specific Substances (AREA)
EP79104472A 1978-12-20 1979-11-13 Machine de redressage Expired EP0012829B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT79104472T ATE2302T1 (de) 1978-12-20 1979-11-13 Richtmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2855014 1978-12-20
DE19782855014 DE2855014A1 (de) 1978-12-20 1978-12-20 Richtmaschine

Publications (2)

Publication Number Publication Date
EP0012829A1 true EP0012829A1 (fr) 1980-07-09
EP0012829B1 EP0012829B1 (fr) 1983-01-26

Family

ID=6057746

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79104472A Expired EP0012829B1 (fr) 1978-12-20 1979-11-13 Machine de redressage

Country Status (8)

Country Link
US (1) US4286452A (fr)
EP (1) EP0012829B1 (fr)
JP (1) JPS5586623A (fr)
AT (1) ATE2302T1 (fr)
DD (1) DD148014A1 (fr)
DE (2) DE2855014A1 (fr)
ES (1) ES487131A0 (fr)
HU (1) HU179998B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571821A (en) * 1983-08-26 1986-02-25 Westinghouse Electric Corp. Sleeve insertion
US4829801A (en) * 1986-11-03 1989-05-16 Mcraine Lance W Cable straightening apparatus
JPH0211653U (fr) * 1988-06-29 1990-01-24

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1309115A (en) * 1969-08-08 1973-03-07 Wean United Inc Straightening machine for structural workpieces
US3756056A (en) * 1970-07-24 1973-09-04 Hoesch Ag Method and apparatus for aligning welded girders
DE2416148B2 (de) * 1973-04-04 1975-09-18 Nippon Steel Corp., Tokio Rollenrichtmaschine für Stahlprofile
DE2540731A1 (de) * 1975-09-10 1977-03-17 Mannesmann Ag Einlaufvorrichtung fuer rohrrichtmaschinen
DE2455254B2 (de) * 1974-11-22 1978-03-09 Moeller & Neumann Gmbh, 6670 St Ingbert Profilrichtmaschine mit zueinander versetzten oberen und unteren, fliegend angeordneten Richtrollen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US962831A (en) * 1909-12-01 1910-06-28 John P Haga Straightening-machine.
US1835198A (en) * 1929-04-26 1931-12-08 Petter B Abramsen Straightening machine
US2746513A (en) * 1952-10-24 1956-05-22 Arthur L Kiesow Wire straightening and tensioning attachment for baling machine
DE1914647C3 (de) * 1969-03-22 1980-11-13 R. & G. Schmoele Metallwerke Gmbh & Co Kg, 5750 Menden Zuführvorrichtung für stangen- oder rohrförmige Werkstücke in eine Richtmaschine
DE2449241B2 (de) * 1974-10-16 1979-08-30 Th. Kieserling & Albrecht, 5650 Solingen Zuführeinrichtung für Schrägrollenrichtmaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1309115A (en) * 1969-08-08 1973-03-07 Wean United Inc Straightening machine for structural workpieces
US3756056A (en) * 1970-07-24 1973-09-04 Hoesch Ag Method and apparatus for aligning welded girders
DE2416148B2 (de) * 1973-04-04 1975-09-18 Nippon Steel Corp., Tokio Rollenrichtmaschine für Stahlprofile
DE2455254B2 (de) * 1974-11-22 1978-03-09 Moeller & Neumann Gmbh, 6670 St Ingbert Profilrichtmaschine mit zueinander versetzten oberen und unteren, fliegend angeordneten Richtrollen
DE2540731A1 (de) * 1975-09-10 1977-03-17 Mannesmann Ag Einlaufvorrichtung fuer rohrrichtmaschinen

Also Published As

Publication number Publication date
DE2964646D1 (en) 1983-03-03
EP0012829B1 (fr) 1983-01-26
DD148014A1 (de) 1981-05-06
ES8101422A1 (es) 1980-12-16
US4286452A (en) 1981-09-01
JPS5752126B2 (fr) 1982-11-05
JPS5586623A (en) 1980-06-30
ATE2302T1 (de) 1983-02-15
HU179998B (en) 1983-01-28
ES487131A0 (es) 1980-12-16
DE2855014A1 (de) 1980-07-03

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