EP2817110B1 - Procédé de planage comprenant le positionnement du matériau à planer - Google Patents

Procédé de planage comprenant le positionnement du matériau à planer Download PDF

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Publication number
EP2817110B1
EP2817110B1 EP13706237.8A EP13706237A EP2817110B1 EP 2817110 B1 EP2817110 B1 EP 2817110B1 EP 13706237 A EP13706237 A EP 13706237A EP 2817110 B1 EP2817110 B1 EP 2817110B1
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EP
European Patent Office
Prior art keywords
straightening
straightened
product
unit
loop
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.)
Active
Application number
EP13706237.8A
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German (de)
English (en)
Other versions
EP2817110A1 (fr
Inventor
Hans-Peter Pflüger
Harald KOHL
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.)
Arku Maschinenbau GmbH
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Arku Maschinenbau GmbH
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Application filed by Arku Maschinenbau GmbH filed Critical Arku Maschinenbau GmbH
Priority to EP13706237.8A priority Critical patent/EP2817110B1/fr
Priority to PL13706237T priority patent/PL2817110T3/pl
Publication of EP2817110A1 publication Critical patent/EP2817110A1/fr
Application granted granted Critical
Publication of EP2817110B1 publication Critical patent/EP2817110B1/fr
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    • 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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/021—Control or correction devices in association with moving strips
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
    • B21D43/08—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers
    • B21D43/09—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by rollers by one or more pairs of rollers for feeding sheet or strip material

Definitions

  • the present invention relates to a method for straightening band-shaped material or parts, with which an exact positioning of the workpieces on a downstream processing machine, such as a press, scissors etc., is made possible.
  • a level alignment of the material is required for processing in a processing device, such as, for example, a punch press, scissors, a forming machine or the like. Before the material is processed in such a processing device, the material must be leveled, which is done by a straightening process.
  • roller or roller leveling machines are preferably used which have a plurality of upper and lower leveling rollers or rollers arranged in an upper and a lower roller mill. These are arranged offset from one another, a so-called straightening gap being formed between the upper and lower straightening rollers.
  • the number of straightening rollers essentially depends on the straightening task, which in turn depends on the thickness of the material to be straightened. The thicker the material to be straightened, the larger rollers are used, whereas smaller straightening rollers can be used for thin sheets.
  • the processing of the leveling material is carried out in clocked fashion in corresponding processing devices, for example in the case of punch presses.
  • a disadvantage of the prior art DE 10 2009 012 929 B3 is that there is no synchronicity between the leveling material feed in the leveling machine and the leveling material feed in the processing device.
  • the continuously straightening and advancing tandem straightening machine of this prior art requires buffering in such a way that a belt loop must be provided between the straightening machine and the machining device in order to compensate for the difference in feed.
  • this has the disadvantage of a large overall length of the system.
  • the object of the present invention is to create a method for straightening strip-shaped or parts-straightening goods, in particular flat parts, with which a space-saving assignment of the straightening process to a subsequent processing device is achieved can be, whereby an exact positioning of the material to be processed is created.
  • the straightening material is carried on after the first straightening unit in that there is no loop of the band-shaped straightening material between the first straightening unit and the second straightening unit, nor between the second straightening unit and the resulting, possibly resulting or escalating during rapid cycle Vibrations in the loop material can be avoided.
  • the upper and lower rollers of the first straightening unit advantageously have a different diameter than the upper and lower straightening rollers of the second straightening unit.
  • the first straightening unit can thus advantageously be operated as a thick sheet metal machine for straightening material with a greater material thickness, for example in the range from 4 to 10 mm, and the second straightening unit in a thinner range, for example up to approximately 4 mm in material thickness.
  • the upper and lower rollers of the first straightening unit have a larger diameter than the upper and lower straightening rollers of the second straightening unit.
  • first leveling unit or the second leveling unit or both leveling units are used.
  • no mechanical conversion is necessary, and the adjustment to the straightening and positioning task is advantageously carried out by a corresponding setting of the control or regulating device.
  • the tandem straightening machine is able to carry out a combined changing, bending and stretching straightening process.
  • the feed speeds can be set and regulated accordingly with the control or regulating device.
  • control or regulating device preferably records at least one of the following variables continuously: maximum torque, maximum position deviation, maximum belt tension, speed of the straightening good, acceleration of the straightening good.
  • the straightening process can thus be comprehensively controlled, the detection of the maximum positional deviation furthermore making it possible to set the position more optimally before the processing by the processing device.
  • a measuring sensor of a measuring device is used to detect the positioning of the target material. This means that the positioning of the target material can be recorded immediately, which is a prerequisite for readjusting it if necessary.
  • the control or regulating device is able, in the event of a deviation of the detected position of the conveyed straightening goods from the desired position, to move the straightening goods forwards or backwards into the desired position. This further optimizes the use of the target material.
  • the unwinding movement of the strip-shaped straightening material from a coil is coupled to the feed of the tandem straightening machine. This is preferably done via the control or regulating device. The entire movement process is thus advantageously synchronized from the processing up to and including the machining process in the machining device.
  • first and / or second straightening unit is advantageously controlled by means of the control or regulating device, so that it is not necessary to convert the production line, which leads to a considerably shortened adaptation to different production processes. After a short changeover time, other straightening material can be processed further.
  • FIG Fig. 1 shown in side view, a view transversely to the direction of travel according to arrow 3 of a band-shaped material 25.
  • the tandem leveler 1 has a first leveling unit 5 and a second leveling unit 7.
  • the first leveling unit 5 has top leveling rollers 9 and bottom leveling rollers 11 and the second leveling unit 7 has top leveling rollers 10 and bottom leveling rollers 12.
  • the two straightening units can be constructed identically, but they are preferably constructed differently.
  • the first straightening unit 5 can have fewer straightening rollers 9, 11 than the second straightening unit 7, the upper and lower straightening rollers 10, 12 of which can be smaller in diameter for this.
  • the two straightening units 5 and 7 rest on a common machine bed 13, which in turn rests on support feet 15.
  • the straightening units 5, 7 can also rest on separate machine beds.
  • the upper straightening rollers 9, 10 are mounted in a manner known per se in an upper roller mill 17 and the upper roller mill 17 is preferably designed to be pivotable according to arrows 19.
  • the present invention also includes non-swiveling upper roller mills.
  • the two straightening units 5 and 7 are essentially constructed like one straightening machine each, so that the description of further details, in particular with regard to drive and control, is omitted here.
  • the lower straightening rolls 11, 12 are mounted in a lower straightening roll mill 21, which rests on the machine bed 13 and is connected to it, if necessary.
  • a band side guide 23 which serves to guide the band-shaped straightening goods 25 but also flat, in particular tabular, straightening goods laterally.
  • the leveling rollers serve to advance the leveling material in the respective leveling unit.
  • the feed for discharging the straightening material 25 further advantageously includes an upper driving roller 27 and a lower driving roller 29 per straightening unit 5 or 7, which are located in the direction of travel according to arrow 3 behind the upper and lower straightening rollers 9, 10 and 11, 12 above and below the straightening material 25 are located.
  • the drive rollers 27, 29 serve to drive the straightening good 25 and can be switched on or off depending on the operating situation.
  • the leveling material is mainly driven via the leveling rollers 9, 11, 10, 12, which is why the tandem leveling machine 1 according to the invention is also referred to as a feed leveling machine.
  • the mode of operation is described as follows:
  • the band-shaped straightening material 25 is threaded into the first straightening unit 5 and passed through, after which it is conveyed to the second straightening unit 7 by means of drive rollers 27 and 29.
  • both position controllers are closed and the two straightening units are coupled via a synchronization bus.
  • the physical quantities are continuously measured during the positioning process of the workpiece on the downstream processing device or machine.
  • the physical quantities can include: maximum torque, maximum position deviation, maximum belt tension, speed and / or acceleration of the target material.
  • the actual values are compared with the target values in the computing module.
  • the position and moment of the individual straightening units 5, 7 and the movement of the straightening material 25 are monitored. If a measured variable exceeds the specified limit values, the process is stopped.
  • a measuring sensor is used as the measuring means or measuring device, for example in the form of a pair of measuring wheel 33 and counter wheel 34. The measuring sensor is attached to the measuring wheel itself.
  • a defined strip tension can be realized by specifically setting the parameters of straightening unit 5 and straightening unit 7.
  • tandem straightening machine 1 and the method according to the invention it is possible to precisely position the straightening material after straightening on a downstream processing device, such as a punch press, which leads to a considerable improvement in the straightening material utilization. Manufacturing waste can be reduced accordingly. Furthermore, the output of the directed material can be increased significantly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Claims (9)

  1. Procédé pour le planage de matériau à planer, en forme de bande (25), ou de pièces, notamment de pièces minces, et pour l'amenage de manière intermittente à un dispositif ou machine de traitement placé en aval, notamment à une presse de poinçonnage, une cisaille ou une machine de formage, qui comprend les étapes suivantes,
    l'amenage du matériau à planer à un premier groupe de planage (5) et de manière facultative le planage du matériau à planer dans ce premier groupe de planage,
    la poursuite d'amenage du matériau à planer, sans boucle, à un second groupe de planage (7) et de manière facultative le planage du matériau à planer dans ce second groupe de planage,
    la poursuite d'amenage du matériau à planer, sans boucle, à une machine de traitement placée en aval, la valeur de l'avancement vers la machine de traitement placée en aval étant commandée au moyen d'un dispositif de commande ou de régulation (31), qui, d'une manière synchrone avec le fonctionnement intermittent du dispositif de traitement placé en aval, commande une interruption du fonctionnement intermittent des groupes de planage (5, 7),
    alors que, après fermeture des deux régulateurs de position des deux groupes de planage, les deux groupes de planage sont accouplés au moyen d'un bus de synchronisation,
    alors que, la poursuite d'amenage du matériau à planer ayant lieu d'une manière précise en position, et par synchronisation des deux groupes de planage, au moyen d'un système qui a la priorité sur les deux groupes de planage, qui comprend un dispositif de mesure et dans lequel la position et le couple des groupes de planage (5, 7) individuels, ainsi que le déplacement du matériau à planer, sont surveillés,
    alors que, dans le système ayant la priorité, lorsque le matériau à planer a atteint sa position souhaitée, un équilibre de couple, agissant sur le matériau à planer, est provoqué avec stabilisation de position prioritaire, et
    alors que l'utilisation du premier et/ou du second groupes de planage (5, 7) est commandée au moyen du dispositif de commande ou de régulation (31).
  2. Procédé suivant la revendication 1, caractérisé en ce que, dans chaque cas en fonction de l'exigence concernant le résultat de planage ou de manière conditionnée par la dimension du matériau à planer, soit le premier groupe de planage (5), soit le second groupe de planage (7), soit les deux groupes de planage (5, 7) sont utilisés.
  3. Procédé suivant la revendication 1 ou 2, caractérisé en ce que la vitesse d'avancement du premier groupe de planage (5) peut être différente, de préférence inférieure, vis-à-vis de la vitesse d'avancement du second groupe de planage (7).
  4. Procédé suivant l'une des revendications précédentes, caractérisé en ce que, au moyen du dispositif de commande ou de régulation (31), au moins l'une des grandeurs suivantes est détectée, de préférence de manière continue : couple maximal, écart de position maximal, tension de bande maximale, vitesse du matériau à planer, accélération du matériau à planer.
  5. Procédé suivant l'une des revendications précédentes, caractérisé en ce qu'un capteur de mesure d'un dispositif de mesure (33, 34) est utilisé pour détecter le positionnement du matériau à planer.
  6. Procédé suivant l'une des revendications précédentes, caractérisé en ce que, en cas d'écart de la position détectée du matériau à planer amené vis-à-vis de la position souhaitée, le dispositif de commande ou de régulation (31) déplace vers l'avant ou vers l'arrière le matériau à planer dans la position souhaitée.
  7. Procédé suivant l'une des revendications précédentes, caractérisé en ce que, lors de l'interruption de fonctionnement intermittent, les rouleaux de planage supérieurs (9, 10) sont déplacés de seulement quelques dixièmes de millimètre vis-à-vis des rouleaux de planage inférieurs (11, 12)
  8. Procédé suivant l'une des revendications précédentes, caractérisé en ce que le mouvement de déroulement du matériau à planer en forme de bande (25) à partir d'une bobine a lieu de manière couplée avec l'avancement de la machine de planage tandem (1).
  9. Procédé suivant l'une des revendications précédentes, caractérisé en ce que sont mis en fonctionnement deux groupes de planage (5, 7) dans le cas desquels les rouleaux de planage supérieurs et rouleaux de planage inférieurs (9, 11) du premier groupe de planage (5) présentent un diamètre différent vis-à-vis des rouleaux de planage supérieurs et rouleaux de planage inférieurs (10, 12) du second groupe de planage (7).
EP13706237.8A 2012-02-23 2013-02-21 Procédé de planage comprenant le positionnement du matériau à planer Active EP2817110B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP13706237.8A EP2817110B1 (fr) 2012-02-23 2013-02-21 Procédé de planage comprenant le positionnement du matériau à planer
PL13706237T PL2817110T3 (pl) 2012-02-23 2013-02-21 Sposób prostowania z pozycjonowaniem przeznaczonego do prostowania materiału

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP12156741 2012-02-23
EP13706237.8A EP2817110B1 (fr) 2012-02-23 2013-02-21 Procédé de planage comprenant le positionnement du matériau à planer
PCT/EP2013/053428 WO2013124342A1 (fr) 2012-02-23 2013-02-21 Machine à dresser en tandem et procédé de dressage comprenant le positionnement de l'article à dresser

Publications (2)

Publication Number Publication Date
EP2817110A1 EP2817110A1 (fr) 2014-12-31
EP2817110B1 true EP2817110B1 (fr) 2020-04-08

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Application Number Title Priority Date Filing Date
EP13706237.8A Active EP2817110B1 (fr) 2012-02-23 2013-02-21 Procédé de planage comprenant le positionnement du matériau à planer

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EP (1) EP2817110B1 (fr)
DK (1) DK2817110T3 (fr)
PL (1) PL2817110T3 (fr)
WO (1) WO2013124342A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT516028B1 (de) * 2014-10-20 2016-02-15 Berndorf Band Gmbh Verfahren und Vorrichtung zum Richten eines Metallbandes
CN104399833B (zh) * 2014-10-27 2016-08-17 合肥市东庐机械制造有限公司 一种冲压加工设备进出料装置
DE102015216387A1 (de) * 2015-08-27 2017-03-02 Sms Group Gmbh Richtmaschine mit modular aufgebautem Wechselkassettensystem
WO2020089677A1 (fr) * 2018-10-31 2020-05-07 Schleuniger Holding Ag Dispositif de redressage destiné à une machine de traitement de câble et procédé de fonctionnement d'une machine de redressage

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3701274A (en) * 1970-11-09 1972-10-31 Sutton Eng Co Roller leveler with adjustable flattening section
DE2748613A1 (de) * 1977-10-29 1979-05-03 Frei Hans Joachim Bearbeitungsanlage fuer band- oder streifenmaterial, insbesondere aus blech
US4633697A (en) * 1985-08-16 1987-01-06 Mesta Engineering Company Plate levelling machine
US6651476B2 (en) * 2001-10-10 2003-11-25 Mechanical Tool & Engineering Co. Combined coil-stock straightening and feed apparatus
US8250894B2 (en) * 2006-10-30 2012-08-28 Aida Engineering, Ltd. Releasing mechanism and leveling apparatus
DE102009012929B3 (de) 2009-03-12 2010-07-01 Burghardt + Schmidt Gmbh Richtwalzenanlage zum Planrichten von metallischem Gut, insbesondere von Metallbändern und Blechen

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
DK2817110T3 (da) 2020-07-20
EP2817110A1 (fr) 2014-12-31
WO2013124342A1 (fr) 2013-08-29
PL2817110T3 (pl) 2020-11-16

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