EP2251110A1 - Machine à profiler - Google Patents

Machine à profiler Download PDF

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Publication number
EP2251110A1
EP2251110A1 EP09006425A EP09006425A EP2251110A1 EP 2251110 A1 EP2251110 A1 EP 2251110A1 EP 09006425 A EP09006425 A EP 09006425A EP 09006425 A EP09006425 A EP 09006425A EP 2251110 A1 EP2251110 A1 EP 2251110A1
Authority
EP
European Patent Office
Prior art keywords
coupling
counterparts
stand
stands
profiling 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.)
Withdrawn
Application number
EP09006425A
Other languages
German (de)
English (en)
Inventor
Wolfgang Ganter
Mike Dietsche
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.)
Dreistern GmbH and Co KG
Original Assignee
Dreistern GmbH and Co KG
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 Dreistern GmbH and Co KG filed Critical Dreistern GmbH and Co KG
Priority to EP09006425A priority Critical patent/EP2251110A1/fr
Publication of EP2251110A1 publication Critical patent/EP2251110A1/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Withdrawn legal-status Critical Current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
    • B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/08—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles making use of forming-rollers

Definitions

  • the invention relates to a profiling machine for longitudinally forming a metal strip or initial profile in a profile or tube by means of a plurality of Rollumformwerkmaschineen according to the preamble of claim 1, and a corresponding method.
  • At least part of the roll forming tools of such a profiling machine is combined to form a plurality of tool groups arranged one behind the other in the working direction, each of which is held in a frame and forms a forming station with it. At least a part of the rolling forming tools arranged in a forming station is seated on work shafts mounted in the frame, which are provided with coupling elements leading out laterally from the stand.
  • clutch stand are arranged, on the one hand have coupling counterparts to the coupling elements of the working shafts and on the other hand connections for a drive system of the profiling to transmit torque from the drive system to the working shafts.
  • the coupling elements of the working shafts are usually made of coupling pins or sleeves, while the coupling stand is equipped with sleeves or pins which engage positively in the coupling pins or sleeves of the working shafts.
  • the coupling stand are movable toward or away from the stands, so that the coupling elements of the working shafts and the coupling counterparts on the coupling stand are selectively engaged or taken out of their engagement.
  • this is an axial displacement necessary.
  • the torque transmission is usually carried out by means of variable length propeller shafts.
  • Profiling machines are able to produce virtually endless profiles or tubes of various cross-sectional shapes from a metal strip or an output profile.
  • a multiplicity of roll forming tools are used for this purpose, which are grouped together in typically 20 to 30 forming stations arranged in line one behind the other. If a different profile shape is to be produced on the same profiling machine, a multiplicity of roll forming tools must accordingly be exchanged.
  • a coupling stand is provided in a profiling machine of the type described above between the forming stations and the drive system, which can engage and disengage the drive shafts, so that the roll forming tools together with their drive shafts can be exchanged as a unit, without having to move the framework relative to the machine base or with respect to a framework support plate.
  • An exchange of the roll forming tools without subsequent lengthy adjustments, especially in the axis parallel to the working waves direction, is possible by the previous uncoupling of the drive system. This saves time when converting a Profiliermaschine to another profile shape and thus reduces adverse production stoppages.
  • a profiling machine of the present type is in the EP 0 365 976 B1 described.
  • laterally movable clutch stand together move away from the forming rollers to release the working shafts. After replacing the same, the clutch stands are moved up again almost to their coupled starting position to the forming stations and the possibly changed installation height of the drive shafts determined. Then the coupling counterparts are moved vertically on the coupling uprights to adjust their height to the height of the respective working shaft.
  • the clutch stands are further moved together to the forming stations to bring the coupling elements and the coupling counterparts into engagement, whereby the coupling process is terminated.
  • a gear block of the drive system is moved with the coupling stands, or the changing distance between the coupling stands and the drive system is compensated by variable length drive shafts.
  • the Ankuppelvorgang takes place in the prior art after EP 0 365 976 B1 as already described by axial nesting of the coupling elements and the coupling counterparts on the drive shafts or on the coupling stanchions, so that they then interlock and can transmit a torque.
  • the coupling counterparts are in turn connected to the drive system.
  • the present invention seeks to further improve a profiling machine of the type described above in terms of cost and in terms of their flexibility, and to propose a corresponding method.
  • the present invention is accordingly characterized in that the coupling stands are individually movable or moved by means of pneumatic drives. This brings several advantages over the prior art with it:
  • Pneumatic drives in particular consisting of at least one pneumatically operated piston-cylinder unit and a guide device for the clutch stand, preferably a slide rail, are cost-effectively and inexpensively individually controlled. This makes it possible to uncouple all the forming stations of a profiling by moving the respective coupling stand individually from the drive system or to couple to this, even if there is a metal strip or profile in the respective forming station. Especially in the trial phase of a profiling after a conversion process, it can be very advantageous to decouple individual forming stations from the drive to make adjustments and get better feedback regarding the changed parameters.
  • a pneumatic drive of the clutch stand also has the further great advantage that it has resilient properties and is thus already provided with a kind of integrated overload protection. So far so when coupling a drive shaft whose coupling element is offset relative to the coupling counterpart on the coupling stand in the direction of rotation, ie the positive fit producing parts of these coupling elements are not aligned, the coupling stand and its pneumatic drive stops.
  • the overload protection by the pneumatic drive of the coupling stand according to the invention not only replaced the previous overload protection by resilient coupling elements and coupling counterparts when coupling, but also provides in the reverse direction, ie when uncoupling, an overload protection.
  • the coupling elements and the coupling counterparts can often not be separated from each other, since they are braced against each other in the direction of rotation.
  • the existing by the pneumatic drive overload protection prevents this, that the coupling stand pulls obliquely, because the coupling elements and coupling counterparts do not come apart. Because even in this case, the pneumatic drive brings only a resilient bias on the clutch stand, so that it moves only when the coupling elements and the coupling counterparts solve each other, for example, by briefly reversing the drive system or by a manually applied vibration.
  • the coupling stand of the profiling machine according to the invention are provided with vertical drive devices for changing the height of the coupling counterparts
  • these vertical drive devices are preferably also pneumatic actuators.
  • the vertical drive devices can be used on the one hand to adapt the vertical position of the coupling counterparts in the coupling stand to approximately changed vertical positions of the drive shafts, for example, when the roll forming tools of the forming station have been replaced.
  • On the other hand with such a height adjustment of the coupling counterparts in the coupling stand also uncoupling of individual drive shafts, and not only an entire forming station, can be realized.
  • the coupling counterpart of the drive shaft to be disengaged is moved by means of the vertical drive devices in a not aligned with the coupling elements of the respective drive shaft position before the clutch stand is moved in its "coupled" starting position to the forming station.
  • the respective drive shaft remains without drive, while the other coupling elements and coupling counterparts engage.
  • the vertical drive devices are suitable for performing an oscillating up and down movement of the coupling counterparts, there is again a significant improvement of the profiling machine according to the invention over the prior art.
  • the coupling can be done by taking advantage of the overload protection properties of the pneumatic drive according to the invention without a complex height adjustment of the coupling counterparts to the coupling elements of the drive shafts. Rather, a small oscillating up and down movement of the coupling counterparts in the coupling stand during coupling ensures that they also engage with the respective coupling elements of the drive shafts, if the height adjustment previously only roughly took place. Even when uncoupling, such a slight oscillating movement can be advantageous, as this causes the coupling elements and the coupling counterparts easier to solve each other.
  • the oscillating up and down movement of the coupling counterparts can be further supported by the fact that the coupling counterparts and / or the coupling elements are each provided at the end with insertion aids, in particular with conically shaped end pieces.
  • the coupling elements, as per se, as coupling sleeves, and the coupling counterparts are designed as a form-fitting plug-in coupling pins in this case, this can be realized such that the coupling pins are provided at the end with a cylindrical end piece whose outer circumference is smaller than the outer circumference the form-fitting elements of the coupling pin, as well as in that the coupling sleeves are provided at the end with a conically shaped insertion section.
  • FIG. 1 is a schematic cross-section through an inventively configured profiling a forming station 1 with an upper working shaft 2 and a lower working shaft 3 for receiving (not shown here) Rollformwerkmaschineen shown, the two working shafts 2, 3 are mounted in a frame 4.
  • This framework 4 stands on a quick-release plate 5, which is fastened by means of fastening elements 6 releasably attached to a machine frame 7.
  • the working shafts 2, 3 in the frame 4 can be moved vertically.
  • the metal strip or profile to be formed is guided by the (not shown) Rollformwerkmaschinemaschinee and thereby formed.
  • a gear block 9 of a drive system is arranged on a gear carrier 10.
  • a clutch stand 11 is interposed between the gear block 9 and the Umformstation1 .
  • two coupling counterparts 12 which are formed as a coupling pin. These can engage positively in coupling elements 13 of the drive shafts 2, 3, which are designed here as coupling sleeves.
  • the coupling elements 13 of the working shafts 2, 3 lead laterally out of the frame 4 towards the gear block 9.
  • the coupling counterparts 12 also continue as a coupling pin 14 to allow engagement in drive shafts 15, which transmit torque from the gear block 9.
  • the propeller shafts 15 are telescopically variable in length, in order not to hinder movement of the coupling stand 11 to the Umformstation1 and away from it.
  • FIG. 2 shows, however, not only the clutch stand 11 has been moved to the gear unit 9 out to disengage the drive shafts 2, 3 from the gear unit 9, but at the same time the two coupling counterparts 12 in the clutch stand 11 were moved vertically downwards or upwards.
  • Such a procedure is in the FIGS. 3 and 4 shown, in FIG. 3 the lower working shaft 3 and in FIG. 4 the upper working shaft 2 are switched without drive.
  • the vertical drive 18 of the in the FIGS. 1 to 4 The illustrated embodiment is otherwise adapted to produce small oscillating up and down movements of the coupling counterparts 12, so that both the coupling and uncoupling of the coupling counterparts 12 from the coupling elements 13 of the drive shafts 2, 3 as described above is facilitated.
  • the coarse adjustment of the height of the two coupling counterparts 12 to the vertical position of the coupling elements 13 of the two drive shafts 2 and 3 is otherwise characterized in that prior to coupling the forming station 1 both coupling counterparts 12 by means of the vertical drive 18 in the in FIG. 2 shown extreme positions are driven.
  • a first movement of the coupling stand 11 to the forming station 1 towards this moves into an intermediate position not shown in the figures.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
EP09006425A 2009-05-13 2009-05-13 Machine à profiler Withdrawn EP2251110A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09006425A EP2251110A1 (fr) 2009-05-13 2009-05-13 Machine à profiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09006425A EP2251110A1 (fr) 2009-05-13 2009-05-13 Machine à profiler

Publications (1)

Publication Number Publication Date
EP2251110A1 true EP2251110A1 (fr) 2010-11-17

Family

ID=42102657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09006425A Withdrawn EP2251110A1 (fr) 2009-05-13 2009-05-13 Machine à profiler

Country Status (1)

Country Link
EP (1) EP2251110A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3311932A1 (fr) * 2016-10-21 2018-04-25 DREISTERN GmbH & Co.KG Profiliermaschine und kuppelvorrichtung für eine solche sowie ankuppelverfahren
EP4324573A1 (fr) * 2022-08-15 2024-02-21 PROFILMETALL Engineering GmbH Dispositif d'accouplement et installation de profilage à rouleaux

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389736A2 (fr) * 1989-03-31 1990-10-03 Oto Mills S.P.A. Machine de profilage à rouleaux
EP0365976B1 (fr) 1988-10-25 1993-07-21 Gerhard Dipl.-Ing. Krückels Machine de profilage
JPH06210354A (ja) * 1993-01-12 1994-08-02 Reikan Roll Seikei Syst Kk 冷間ロール成形機用連結装置
JPH07144229A (ja) * 1993-11-22 1995-06-06 Mori Mach Kk ロール成形機におけるユニバーサルジョイント連結装置
EP0721814A1 (fr) * 1993-09-27 1996-07-17 Nakata Manufacturing Company Limited Dispositif d'accouplement d'arbre pour laminoir a profiler les feuillards a froid

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365976B1 (fr) 1988-10-25 1993-07-21 Gerhard Dipl.-Ing. Krückels Machine de profilage
EP0389736A2 (fr) * 1989-03-31 1990-10-03 Oto Mills S.P.A. Machine de profilage à rouleaux
JPH06210354A (ja) * 1993-01-12 1994-08-02 Reikan Roll Seikei Syst Kk 冷間ロール成形機用連結装置
EP0721814A1 (fr) * 1993-09-27 1996-07-17 Nakata Manufacturing Company Limited Dispositif d'accouplement d'arbre pour laminoir a profiler les feuillards a froid
JPH07144229A (ja) * 1993-11-22 1995-06-06 Mori Mach Kk ロール成形機におけるユニバーサルジョイント連結装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3311932A1 (fr) * 2016-10-21 2018-04-25 DREISTERN GmbH & Co.KG Profiliermaschine und kuppelvorrichtung für eine solche sowie ankuppelverfahren
EP4324573A1 (fr) * 2022-08-15 2024-02-21 PROFILMETALL Engineering GmbH Dispositif d'accouplement et installation de profilage à rouleaux

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