EP3566788A1 - Installation et procédé d'assemblage d'un matériau en bande laminé flexible - Google Patents

Installation et procédé d'assemblage d'un matériau en bande laminé flexible Download PDF

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Publication number
EP3566788A1
EP3566788A1 EP18171364.5A EP18171364A EP3566788A1 EP 3566788 A1 EP3566788 A1 EP 3566788A1 EP 18171364 A EP18171364 A EP 18171364A EP 3566788 A1 EP3566788 A1 EP 3566788A1
Authority
EP
European Patent Office
Prior art keywords
length
strip material
feed
thickness
measuring
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
EP18171364.5A
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German (de)
English (en)
Other versions
EP3566788B1 (fr
Inventor
Joachim Ivo
Thomas Dahl
Andreas BARCHET
Christian BRÜSER
Alexander EICK
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.)
Muhr und Bender KG
Original Assignee
Muhr und Bender 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 Muhr und Bender KG filed Critical Muhr und Bender KG
Priority to PL18171364T priority Critical patent/PL3566788T3/pl
Priority to EP18171364.5A priority patent/EP3566788B1/fr
Priority to CN201980031002.8A priority patent/CN112088052B/zh
Priority to US17/053,433 priority patent/US20210245216A1/en
Priority to PCT/EP2019/061408 priority patent/WO2019215044A1/fr
Publication of EP3566788A1 publication Critical patent/EP3566788A1/fr
Application granted granted Critical
Publication of EP3566788B1 publication Critical patent/EP3566788B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2205/00—Particular shaped rolled products
    • B21B2205/02—Tailored blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/04—Thickness, gauge
    • B21B2261/043—Blanks with variable thickness in the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/12—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters

Definitions

  • the invention relates to a system and a method for separating flexibly rolled strip material.
  • Flexibly rolled strip material has a variable thickness profile in the strip longitudinal direction. The separation of flexibly rolled strip material therefore requires an exact positioning of the separation area to obtain boards with a defined nominal thickness profile.
  • an apparatus and a method for separating flexibly rolled strip material are known.
  • the strip material is guided by a reel via a first pinch roller and a band straightening arrangement in a tape storage.
  • Behind the tape storage are two other pinch rollers with integrated length measurement, between a band thickness measurement, and behind a hydraulic shears for separating the strip material arranged.
  • the tape length supplied to the tape store is determined via the first pinch roller and the tape length led out of the tape store is determined via the pinch roller arranged behind the tape store.
  • strip material is tracked via the clamping roller arranged behind the strip store and the subsequent thickness measuring unit, and an actual thickness profile of the strip material is determined.
  • an actual thickness profile of the strip material is determined.
  • a cutting plan is created according to which the tracked length of the strip material is regulated and the cutting process is carried out.
  • the band length supplied to the hydraulic shears is determined by averaging the values determined by the pinch rollers arranged immediately before and behind the thickness measurement.
  • a method and a system for producing a sheet metal blank are known.
  • the method comprises the steps of: flexibly rolling a strip material, wherein a thickness profile is produced with different sheet thicknesses over the length of the strip material; Determining a Messdickenprofils of several successive areas of the strip material; Calculating a desired position in the strip material for a sheet metal blank to be cut from the strip material as a function of the generated measuring thickness profile of at least two successive regions of the strip material; Cutting the flexibly rolled strip material by means of at least one cutting device along the desired position for producing the sheet metal blank.
  • the production of shaped cuts and rectangular blanks can be effected by means of a suitable separating device.
  • a suitable separating device arranged in front of the separator tape feed unit, which is usually equipped with a spool, a leveler, a tape storage unit and a feed device.
  • the threading of a metal strip in such a system is done manually by the operator.
  • the operator threads the beginning of the strip to a marked point in the separating tool or on the transverse dividing shear.
  • the automatic mode is started and the feed system pushes the tape per working stroke by a certain, always the same length measure.
  • the cyclic thickness profile of the flexibly rolled strips can only be positioned inaccurate or not at all to the separating edge of the separating device.
  • This position tolerances for the thickness profile relative to the position within the shape of the section or the rectangular board can not be met.
  • areas of the metal strip that do not comply with the thickness tolerances can not be detected and sorted out.
  • the invention is based on the object to propose a system for separating flexible rolled strip material, the accurate measurement and evaluation allows the sheet thickness profiles and ensures a positionally accurate positioning of the strip material for separating.
  • the object is also to propose a corresponding method for separating flexibly rolled strip material, which enables accurate measurement, evaluation and positioning.
  • a memory means for temporarily storing the flexibly rolled strip material; a first feed device, which is arranged in the feed direction of the strip material behind the storage device; at least one length measuring device for continuously measuring a length of the strip material; a thickness measuring device for continuously measuring a thickness of the strip material along the length; a second feed device, which is arranged behind the first feed device; a separating device, which is arranged in the feed direction of the strip material behind the second feed device; wherein the first advancing means and the second advancing means are configured to move the strip material from the storage means to the singulating means in response to the thickness measurement and the length measurement; wherein the thickness measuring device is arranged in the feed direction of the strip material behind the storage device and in front of the first tape feed device; and the at least one length measuring device is arranged in the feed direction of the strip material behind the first strip feed device.
  • the system has the advantage that the feed applied by the first feed device can be controlled by means of the values previously determined by the thickness measuring unit.
  • a recurrent thickness profile of the flexibly rolled strip can be accurately recognized, compared with the desired nominal profile and positioned exactly to the separation point of the separating device.
  • areas of the metal strip that do not comply with the thickness tolerances can be detected and sorted out.
  • the system may further comprise a reel for unwinding the flexibly rolled strip material and at least one straightening unit for straightening the flexibly rolled strip material.
  • several straightening units can be used used in the processing of particularly thicker tapes and / or in tapes with large absolute thickness jumps of, for example, more than 1 mm.
  • the reel and the at least one straightening unit, which together can also be referred to as an unwinding and straightening group, are connected upstream of the band storage device.
  • the first and second feed device for the separating device control technology independent of the feed of the unwinding and straightening group.
  • the unwinding and straightening group conveys the strip into the strip store and provides the flexibly rolled strips for processing by the further line.
  • the conveying or unwinding speed of the unwinding and straightening group can be regulated by means of a filling level sensor of the strip accumulator.
  • the filling level sensor can be, for example, an ultrasound unit which senses the depth of the band loop hanging in the band store and transmits a corresponding signal to the regulator for the unwinding and straightening group. It is understood that other sensors can be used, such as an optical sensor, a capacitive and / or an inductive sensor.
  • the straightening unit can be supported by an inlet driver and a take-off roller.
  • the operation or the running of the system components reel, inlet driver, straightening unit and take-off roller can be synchronized with each other via controllers and operated in speed control or torque control to each other.
  • Each of the units can be operated individually, that is independently of each other, as a generator or as a motor.
  • the execution with Abhaspel- and straightening group lends itself to, if the strip material after the flexible rolling is rewound to the coil and further processed elsewhere.
  • the system parts tape storage, feed and separation unit directly connect to a flexible rolling in the ongoing process.
  • the tape storage is used to decouple the unwinding and straightening group of the system from the working on the basis of feed lengths, position-controlled part of the system with the components thickness measurement, feeds, length measurements and singler.
  • the length-based feed control of the singling system is based solely on the length measured values of the length measuring device located behind the strip accumulator. Possibly of a length measured values detected in front of the storage device can be disregarded in the present feed control.
  • the thickness measuring unit is arranged in the passage direction behind the tape storage and before the first feed device. Immediately behind the first feed device is the associated first length measuring unit.
  • the first length measuring unit is configured to continuously detect the length of the strip material. The thickness measurement is carried out in particular continuously during the tape feed.
  • the length measuring device and the thickness measuring device are metrologically coupled with each other. In this case, provision is made in particular for the length measuring unit to generate trigger signals and pass them on to the thickness measuring unit in order to trigger thickness measurements, which in turn are detected.
  • the length measuring unit may comprise a measuring wheel, which is in abutting contact on a first side of the strip material, and a support wheel which is in abutting contact with an opposite side of the strip material as an abutment for the measuring wheel.
  • the tread of the measuring wheel can be made for example of a steel material.
  • the tread of the support wheel can for example be made of an elastic material. It is understood that the above-described embodiment of the length measuring unit can also be used for any other length measuring unit of the system.
  • two length measuring devices are provided, a first length measuring device, which is associated with the first feed device, and a second length measuring device, which is associated with the second feed device.
  • the second length measuring device is arranged in the feed direction of the strip material behind the second feed device and in front of the singulation device.
  • the measuring devices are each arranged as close as possible to the respective feeds.
  • the first length measuring device to the first feed device at a first distance which is smaller than 0.5 times, in particular less than 0.25 times the distance between the first feed device and the second feed device.
  • the second length measuring device may have a second distance to the second feed device, which is smaller than 0.5 times, in particular less than 0.25 times the distance between the second feed device and the separating device.
  • the two feed devices operate synchronously in order to feed the strip material from the strip store to the singulation unit. Both feeds each exert a tensile force on the strip material in order to move it.
  • the second feed device which is located downstream in the direction of passage, can be driven more quickly than the upstream first feed device. In this way, the strip material between the two feed devices is easily kept on train and is therefore flat, which has a favorable effect on the measurement accuracy.
  • the distance between the thickness measuring device and the separating device is at least twice the length of the blank of a blank to be cut out of the strip material.
  • the distance is at least twice the length of a board plus the feed path which the strip material travels during the computing time for a board to be cut out.
  • the separating device can be selected to the requirements of the flat product to be separated and, for example, a transverse dividing shear or a jet cutting unit, in particular a laser cutting unit include.
  • a transverse dividing shear or a jet cutting unit in particular a laser cutting unit include.
  • a dividing shears, a cross-section laser or a comparable blasting machine for cross-cutting can be used, connected to the tape feed system.
  • a press line with suitable separating tools or a jet cutting unit, in particular a laser jet unit, in each case connected to the tape feed system can be used.
  • a solution of the above object is further in a method for separating flexibly rolled strip material, in particular by means of a plant according to one of the above embodiments, comprising the steps of: buffering the flexibly rolled strip material by means of a storage device; Advancing the strip material from the intermediate store by means of a first feed device and a second feed device; continuous measurement of a Thickness of the strip material by means of a thickness measuring device while the strip material is advanced, wherein the measurement of the thickness in the feed direction of the strip material takes place before the first feed device; continuously measuring a length of the strip material by means of a length measuring device while advancing the strip material, wherein the measuring of the length in the feed direction of the strip material takes place behind the first feed device; Calculating an actual thickness profile for a board to be singulated from the strip material from measured thickness values and associated measured length values; Comparing the calculated actual thickness profile with a predetermined nominal thickness profile and calculating a feed length for the board to be singulated from the strip material; Feeding
  • the length measurement behind the respective feed unit decouples the feed movement from the length measurement, which leads to particularly accurate measurement results.
  • the thickness measurement before the first feed unit also has a favorable effect on the measurement accuracy, since the feed rate applied by the first feed device can be controlled by means of the values previously determined by the thickness measuring unit.
  • the use of the second position-controlled feed device with associated length measuring unit contributes to a flat, warp-free and tape loop-free tape running between the thickness measuring unit and the separation point, which in turn ensures a precise positioning of the reference edges of the feed length with respect to the separation point. There are the same overall advantages for the process as for the plant.
  • a recurring thickness profile of the flexibly rolled strip can be accurately recognized, compared with the desired nominal profile and positioned exactly relative to the separation point of the singulator.
  • areas of the metal strip that do not comply with the thickness tolerances can be detected and sorted out.
  • the strip material is pulled from the position-controlled first or second tape feed from the tape storage.
  • the flexible rolled strip is continuously measured by the thickness measuring unit with respect to the thickness.
  • the thickness measuring unit evaluates whether the flexible rolled strip meets the required thickness tolerances or not.
  • the comparison of the determined actual thickness profile with the predetermined nominal thickness profile takes place in particular also taking into account the associated tolerances of the nominal thickness profile, which can be represented by an envelope. It is checked by calculation whether the determined actual profile lies within the envelope of the nominal profile. From the result of the comparison, the feed length for the tape or the board to be cut therefrom and the cutting position of the board in the tape can be calculated.
  • the band is divided into areas that are in order (so-called 10 parts) and those that are out of order (so-called ni0 parts).
  • the position and length of these individual areas in the band is passed from the thickness measuring device to the first feed device.
  • the first feed device, and also the second feed device coupled thereto, can then perform the feeds instructed by the thickness measuring unit and position the reference edges of the individual feed lengths accurately to the separation point of the separating device.
  • the feed unit to the other parts of the system forward the information, whether it is a feed length with iO thickness profile or niO thickness profile.
  • the length measuring device is configured to continuously detect a length value representing the feed path of the tape.
  • high-precision length measuring devices are used for this purpose which have a measuring tolerance of up to 0.5 mm per meter strip length, in particular of up to 0.1 mm per meter strip length.
  • the length measurement can be done for example by means of a measuring wheel which is in abutting contact with the strip material passed by.
  • the length measuring device can measure the strip material from beginning to end without interruption. As the starting point of the measurement, the beginning of the tape can be used, which defines the length zero position accordingly. From the starting point of the length measurement, the length is recorded continuously.
  • the first length measuring device of the first feed at the starting point referenced with the thickness measurement in terms of length can be done by continuously reporting the length measurement value from the first length measuring device to the thickness measuring device.
  • the message of the length measured values can be absolute or incremental.
  • the thickness measurement scales the thickness readings based on the reported length readings over the tape length. In this way, both measuring devices can work from the exact same band length zero point.
  • the measured actual thickness profile can be reliably compared with the predetermined nominal thickness profile and a corresponding assessment made with regard to the parts which are in order and those which are not in order. Referencing the length measuring device with the thickness measuring device is also of importance for the positionally accurate positioning of the feed lengths by the feed with respect to a reference interface for the singulation.
  • the second length measuring device of the second feed can also be referenced at the starting point with the thickness measurement in terms of length.
  • a further length measurement of the strip material can be carried out by means of a second length measuring device during the feeding of the strip material to the singling device, wherein the measurement of the length with the second measuring device in the feed direction of the strip material behind the second feed device. It can also be provided as a further method step: comparing the first length measured values determined by the first length measuring device with the associated second length measured values determined by the second length measuring device; and shutting down the system when a difference between the first length measurements and the second length measurements exceeds a predetermined difference value.
  • a fixed distance can be set between the thickness measuring device and the first feed device. This distance is precisely measured, preferably with an accuracy of up to +/- 0.2 mm, and maintained during operation of the plant. In this way, the length reference between the thickness measurement on the one hand and the feed or the length measurement On the other hand reliably ensured over the entire length of the strip material.
  • a fixed distance can be set between the thickness measuring device and the singling device after a possible process control. This distance is precisely measured, preferably with an accuracy of up to +/- 0.2 mm, and maintained during operation of the plant.
  • the measuring distance between the thickness measurement and the singulation device can be set to at least twice the length of the blank of a blank to be cut out of the strip material.
  • the distance between thickness measurement and singulation device can be set to at least twice the length of a board plus the feed travel which the strip travels during the computing time for a blank to be cut out.
  • a distance between two devices this may relate to a predetermined reference point of the respective device, for example a measuring plane at the measuring devices, or a separating point at the separating device.
  • the second feed device is operated synchronously with the first feed device, in particular with the same length scale as the first feed device and the thickness measuring unit.
  • the second feed unit By regulating such that the second feed unit slightly advances with respect to the first feed unit, the second feed unit generates a slight strip tension in the strip section, which is located within the measuring section, which ensures a flat strip run.
  • FIG. 1 a system 2 according to the invention for separating flexible rolled strip material 3 is shown.
  • Flexibly rolled strip material means that a strip material having a substantially constant sheet thickness is rolled over the length by means of rolling is that it receives a variable sheet thickness along the rolling direction. After flexible rolling, the strip material 3 in the rolling direction has different thicknesses over the length. The strip material 3 is wound up again to the coil 4 after the flexible rolling, so that it can be fed to the next process step, or it can optionally be further processed directly.
  • a coil 4 of flexible rolled strip material is shown as the starting material.
  • the plant 2 comprises a reel 5 for unwinding the flexibly rolled strip material 3 and a straightening unit 6 for straightening the flexibly rolled strip material.
  • the straightening unit 6 comprises a plurality of rollers, in particular between 7 to 23 rollers, which passes through the band material.
  • an inlet driver 7 can be provided, which pulls the band material 3 from the reel and supplies the straightening unit.
  • a take-off roll 8 can be arranged, which transfers a feed force to the strip material 3.
  • the operation of the system components reel, inlet driver, straightening unit and take-off roller can be synchronized with each other via controllers and operated in speed control or torque control.
  • Each of the units can be operated individually, that is independently of each other, as a generator or as a motor.
  • FIG. 1 are the transferable from the respective components 5, 6, 7, 8 on the strip material moments M5, M6, M7, M8 drawn.
  • a memory device 9 is provided, which is designed to temporarily store a respective section of the tape 3.
  • a feed movement of the unwinding and straightening group 10 is decoupled from a feed movement of the separating group 12.
  • the unwinding and straightening group 10 conveys the strip 3 into the strip store 9, which provides the flexibly rolled strip 3 for further processing in the singling group 12.
  • the conveying or unwinding speed of the unwinding and straightening group 10 can be regulated by means of a filling level sensor 13 of the strip accumulator 9.
  • the filling level sensor 13 may comprise, for example, an ultrasonic sensor or an optical sensor which senses the depth of the belt loop suspended in the tape store and transmits a corresponding signal to the controller for the unwinding and straightening group 10.
  • the system 2 comprises, as further components behind the storage device 9, a thickness measuring device 14 for continuously measuring the thickness of the strip material, a first feed device 15, a first length measuring device 16 associated with the first feed device for continuously measuring the length of the strip material 3, a second feed device 17 is arranged at a distance behind the first feed device 15, a second length measuring device 18 assigned to the second feed device 17 and a singling unit 19 for singulating the strip material 3.
  • the two feed devices 15, 17 are operated synchronously and are designed to move the strip material 3 from the storage device 9 to the singulator 19 as a function of the thickness measurement and the length measurement.
  • the two advances 15, 17 each exert a feed force on the strip material in order to move it. So that the strip material between the two feed devices 15, 17 is kept flat, the second feed device 17 can be driven with a slight forward movement relative to the first feed device 15.
  • a special feature of the present arrangement is that the thickness measuring device 14 is arranged in the direction of passage R of the strip material 3 behind the storage device 9 and before the first feed device 15, and that the first length measuring device 16 is designed separately from the first feed device 15 and downstream. For the length-based feed control of the singling group 12, only the length measured values of the length measuring devices 16, 18 behind the strip accumulator 9 are taken as a basis.
  • the first length measuring device 16 and the thickness measuring device 14 are metrologically coupled with each other.
  • a fixed Abtandsquest A1 between the thickness gauge 14 and the first feed device 15 is set.
  • This distance A1 is precisely measured, preferably with an accuracy of up to +/- 0.2 mm, and maintained during operation of the plant. In this way, the length reference between the thickness measurement on the one hand and the feed or the length measurement on the other hand over the entire Length of the strip material can be reliably guaranteed.
  • the length measuring unit 16 can generate trigger signals B1 and pass them on to the thickness measuring unit 14.
  • Each trigger signal B1 serves as a trigger for a thickness measurement, so that a thickness measurement value is generated with each trigger signal of the length measuring unit 16 and assigned to a corresponding length measurement value. In this way, data sets of pairs of length and thickness values are generated, from which the actual thickness profile of the board to be cut out of the strip material 3 can be determined.
  • the first and second length measuring units 16, 18 each comprise a measuring wheel 20, 20 ', which is in abutting contact with a first side of the strip material 3, and a support wheel 21, 21', which serves as an abutment for the measuring wheel 20, 20 '.
  • the running surface of the measuring wheels can for example be made of a steel material.
  • the running surface of the support wheels can be made of an elastic material, for example. It is understood, however, that other forms of length measurements, such as non-contact sensors, can be used. For a high measuring accuracy of the length measured values, it is favorable if the measuring devices 16, 18 are each arranged as close as possible to the respective feeds 15, 17.
  • the distance between the first length measuring device 16 and the first feed device 15 in particular less than 0.1 times the distance between the two feed devices 15, 17 to each other.
  • the second length measuring device 18 may have a distance to the second feed device 17 that is less than 0.1 times the distance between the second feed device 17 and the singling device 19.
  • the distance A2 between the thickness gauge 14 and the singulator 19 drawn is preferably at least twice the length of the board L22 of a cut out of the strip material 3 board 22 plus the feed path, which covers the strip material during the computing time for a cut-out board.
  • the separating device 19 can be selected to the requirements of the flat product 22 to be separated and, for example, a mechanical separating device, such as a dividing shear (as shown here), or a jet cutting unit, in particular a laser cutting unit.
  • the separating device can also be referred to as a cutting or separating device.
  • the present separator 19 is configured to create cuts perpendicular to the belt edge. It is understood, however, that the separating device can in principle be adapted to the final contour of the board to be produced with regard to the separating cut to be produced.
  • the separating device can also be designed to produce obliquely to the band edge running cuts, or even curved cuts. Hereby, if necessary, the amount of scrap can be reduced.
  • the process steps S10 unwinding and S20 straightening carried out by the unwinding and straightening group 10 can be decoupled from the control point, at least with regard to the feed of the strip material, by the method steps (S40-S130) carried out by the feed and singulation group 12 behind the strip store S30 be.
  • step S30 buffering of the flexibly rolled strip material 3 by means of the storage device 9. It is provided in particular that the strip material 3 is fed continuously from the unwinding and straightening group 10 into the strip store 9.
  • step S40 the strip material 3 is fed out of the intermediate store 3 by means of the first and second feed devices 16, 17. This takes place in particular at intervals according to a calculated feed length for the respective blank 22 to be cut from the strip material 3.
  • the feed length is determined in FIG Steps S50, S60 continuously measure a thickness signal and a length signal of the strip material 3. This is carried out continuously by means of the thickness measuring device 14 and the first length measuring device 16, that is, while the strip material 3 is continued by the feed devices 15, 17 by a feed length.
  • the thickness measurement (S50) takes place in the direction of passage R of the strip material 3 in front of the first feed device 15 or in front of the first length measuring device 16.
  • the thickness and length values detected by the measuring devices 14, 16 are forwarded to a computing or control unit, where they are further processed to calculate the actual thickness profile of a board 22 to be cut out and to calculate the feed length for this board.
  • a thickness value D is assigned to each length position L of the strip material 3. Since the thickness measuring device 14 is arranged in front of the first feed device 15, the thickness values detected therefrom and the actual thickness profiles determined therefrom together with the associated length values can be taken into account directly during the current feed movement. The length measurement can take place in the direction of passage R of the belt immediately behind the first feed device 15.
  • the continuous measurement of the length or displacement signal of the strip material 3 by means of the first length measuring device 16 takes place simultaneously with the thickness measurement while the strip material is advanced. It is provided in particular that the first length measuring device 16 is referenced at the starting point with the thickness measuring device 14 with respect to the length. This is done for the first time, as described above, by setting the defined distance measure A1 and during the process by continuously reporting the length measurement value from the first length measuring device 16 to the thickness measuring device 14.
  • the length measurement values can be reported absolutely or incrementally, for example by means of trigger signals B1, B2 ,
  • the thickness measurement scales the thickness readings based on the reported length readings over the tape length. In this way, both measuring devices 14, 16 work from the exact same band length zero point.
  • the actual thickness profile for the board 22 to be singulated from the strip material 3 is calculated in step S70.
  • the measured actual thickness profile can be reliably compared with the predetermined nominal thickness profile and the associated tolerances, in particular representable by an envelope, in step S80 and a corresponding assessment made with regard to the parts which are in order and those which are not in order.
  • the feed length for the board 22 to be separated from the strip material 3 can be calculated in step S90.
  • the strip material 3 is fed to the singling device 19 by means of the two feed devices 15, 17 on the basis of the calculated feed length VL. While the strip material is advanced by the calculated feed length VL for a first board, the thickness and length measurement for the next board 22 'to be cut out subsequently takes place simultaneously by means of the thickness and length measuring devices 14, 16 in the area of the first feed unit 15 the dashed line in FIG. 2 shown. It is envisaged that the measuring path between the thickness measurement 14 and the singling device 19 is set to at least twice the length of the board L22 of a board 22 to be cut out of the strip material 3 plus the feed path traveled by the strip during the computing time for the blank to be cut out. The cutting out of the board 22 takes place in method step S110.
  • a further length measurement can take place by means of a second length measuring device 18.
  • the second length measuring unit is preferably arranged in the feed direction of the strip material 3 directly behind the second feed device 17. It can also be provided as a further method step S130: comparing the first length measured values determined by the first length measuring device 16 with the associated second length measured values determined by the second length measuring device 18 and switching off the system if a difference between the first and second length measuring values exceeds a predetermined difference value. This measurement redundancy minimizes the risk of waste production.
  • FIGS. 3, 4 and 5 various forms of manufactured from the strip material 3 boards are shown, as well as in FIG. 6 an example of a separation sequence for a board according to FIG. 3 or one according to FIG. 4 ,
  • FIG. 3 an embodiment of a rectangular board 22 is shown with a single-ended thickness curve D22 over the length L22 of the board.
  • a variable thickness which may also be referred to as ramps.
  • Rectangular board 22 shown is produced by simply cutting the strip material 3 brought to the correct position by the feeds 15, 17 by a simple cut, for example by means of a transverse dividing shear.
  • An exemplary separation sequence for the rectangular board 22 from FIG. 3 is in the upper path of the FIG. 6 shown.
  • Successive boards have the same reference numeral with primed indices. It is an "OK” board 22, followed by a “NOK” board 28, followed by an "OK” board 22 ', a short “NOK” bridge 28' to be cut out, followed by another "OK".
  • Board 22 ", and the" iO "boards 22, 22 ', 22" are stacked by means of a stacker (not shown). The "no" sections 28, 28 'are sent for automatic scrapping.
  • a further exemplary separation sequence for a further exemplary rectangular board is shown.
  • the thicknesses of the respective first section 24a and the last section 24a are also the same for the rectangular boards 22, 22 ', 22 "of the lower separation sequence 24.
  • the last section 24a of the board 22 has the same thickness as the first section 24a' of the subsequent board 22
  • a "NOK” board 28 is followed by an "OK” board 22, a short "NOK” interface 28 'to be cut out, followed by another "IO” board 22', a "NO "Board 28" and an "iO” board 22 ".”
  • the "10" boards 22, 22 ', 22 are stacked by means of a stacker (not shown).
  • the "no" sections 28, 28 ' are sent for automatic scrapping.
  • FIG. 4 a further embodiment of a rectangular board 22 is shown, which in contrast to FIG. 3 has a symmetrical thickness D22 over the length L22. It can be seen that the thickness profile D22 of the board 22 is mirror-symmetrical with respect to a center plane E.
  • the rectangular plate 22 shown here is also produced by simply cutting the strip material 3 brought to the correct position from the feeds 15, 17 by a simple cut, for example by means of a transverse dividing cutter.
  • FIG. 5 an embodiment of boards is shown, whose end sections respectively have a different thickness. For this reason, two successive boards 22A, 22B are each mirrored to each other. Over the length of the band in each case a first circuit board 22A and a second circuit board 22B alternate. The profile of the first boards 22A corresponds to the profile of the second boards 22B.
  • the boards 22A, 22B shown here furthermore each have an asymmetrical thickness profile D22A, D22B over the respective length L22A, L22B. It can be seen that the thickness profile D22A of the board 22A with respect to a center plane EAB is mirror-symmetrical to the thickness profile D22B of the following board 22B.
  • the board 22A has, starting from the first end 23A, a first portion 24Aa having a first thickness, a second portion 24Ab having a second thickness, a third portion 24Ac having a third thickness, a fourth portion 24Ad having a fourth thickness, and a final portion 24Ae having a thickness which is different from the first thickness of the first portion 24Aa. Between the sections 24Aa, 24Ab, 24Ac, 24Ad and 24Ae, each having a constant thickness along the length, there are provided transition portions 26Aa, 26Ab, 26Ac, 26Ad and 26Ae of variable thickness over the length, respectively.
  • the second board 22B is constructed correspondingly symmetrical to the first board.
  • the second board 22B is again followed by a first board 22A, and so on.
  • the rectangular blanks 22A, 22B shown here are also produced by simply cutting the strip material 3 brought to the correct position from the feeds 15, 17 by a simple cut, for example by means of a transverse dividing cutter.
  • FIG. 7 shows a system 2 according to the invention for separating flexible rolled strip material in a modified embodiment. This corresponds largely to the embodiment according to FIG. 1 , so that reference is made to the above description in terms of similarities.
  • the same or modified components are provided with the same reference numerals, as in FIG. 1 ,
  • the present Annex 2 according to FIG. 7 can be related with the same above FIG. 2 operated method described.
  • the only difference of the present embodiment consists in the configuration of the singling device 19, which in the present case comprises a shape-cutting tool, in particular with a strip-separating tool.
  • the shape cutting tool is designed in that it cuts out a shape-cutting board 22 corresponding to the target contour from the strip material 3.
  • one or more shaped cutting boards 22 can be cut out of the strip material 3 in one operation of the shaped cutting tool.
  • the singling device 19 can be designed as a punching tool, as described in more detail in FIG FIG. 9 shown with a tool lower part 29 and a tool upper part 30 which is movable relative thereto to perform a contoured cut.
  • the singulating device may comprise an integrated strip separating tool which separates a board from the strip.
  • the cutting order can be selected as desired, that is only first cut a circuit board from the strip, then form cut from the board, or cut and cut simultaneously, or first cut from the strip and then cut from the strip.
  • an accurate positioning of the shaped cut 22 to be cut out relative to the tool 19 by means of the feed units 15, 17 is also provided in the present embodiment with a shaped cutting tool.
  • the cutting tool may have a deviating from a perpendicular to the band edge cutting line, which may be straight, oblique or curved.
  • the punched scrap can optionally be reduced with oblique or curved cutting lines.
  • the feed units 15, 17 are connected with the form-cutting tool 19 such that the strip material is advanced in the desired length up to a reference point 32 or a reference plane on the shaped cutting tool 19.
  • the shaped cutting tool 19 is exactly aligned with respect to the press table 31 and is precisely positioned or fixed by means of positioning means, such as, for example, a dowel pin or a dowel.
  • a mold cutting board 22 is shown, as for example by means of the punching tool 19 according to the Appendix FIG. 7 can be cut out.
  • the shaped cutting board 22 is characterized in that it has a defined circumferential contour 27.
  • the contour of the cut out of the strip material 3 sheet metal blanks 22 is arbitrary and can be adjusted individually according to the geometric specifications.
  • a jet cutting device for example a laser beam separating device, which can be moved along several axes, namely at least in the feed direction and in the transverse direction and optionally in the vertical direction of the strip material.
  • the mold cutting board 22 has sections 24a, 24b, 24c, 24d with different thicknesses (plateaus) and intermediate transition sections 26a, 26b, 26c (ramps).
  • the reference edge 32 is drawn onto which the strip material 3 is positioned in the singulator 19 in order to produce the shaped cut.
  • FIG. 9 shows an exemplary separation sequence for a die cutting board 22 FIG. 8 by means of the shape-cutting tool 19, which is represented here by dashed lines. From the mold cutting tool 19, the lower tool part 29, which is positioned on the press table 31, and the upper tool part 30 can be seen. For the cutting process, the band 3 is advanced to a reference separating edge 32 according to calculation of the feed unit 15, 17. Then, the shape cutting board 22 is cut by moving the upper 30 to the lower part 29.
  • the exemplary sequence shown concretely includes an "OK” form cutting board 22 followed by a "OK” board area 22 'to be cut, followed by two "NOK” board areas 28, 28', another "OK” board area 22 " another "niO” board area 28 "and another” io "board area 22"'.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
EP18171364.5A 2018-05-08 2018-05-08 Installation et procédé de séparation d'un matériau en bande laminé flexible Active EP3566788B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL18171364T PL3566788T3 (pl) 2018-05-08 2018-05-08 Instalacja i sposób wyodrębniania elastycznie walcowanego materiału taśmowego
EP18171364.5A EP3566788B1 (fr) 2018-05-08 2018-05-08 Installation et procédé de séparation d'un matériau en bande laminé flexible
CN201980031002.8A CN112088052B (zh) 2018-05-08 2019-05-03 用于分离经柔性轧制的带材料的系统和方法
US17/053,433 US20210245216A1 (en) 2018-05-08 2019-05-03 Separating flexibly rolled strip material
PCT/EP2019/061408 WO2019215044A1 (fr) 2018-05-08 2019-05-03 Dispositif et procédé de séparation d'un matériau en bande laminé souple

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18171364.5A EP3566788B1 (fr) 2018-05-08 2018-05-08 Installation et procédé de séparation d'un matériau en bande laminé flexible

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EP3566788A1 true EP3566788A1 (fr) 2019-11-13
EP3566788B1 EP3566788B1 (fr) 2021-02-17

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EP18171364.5A Active EP3566788B1 (fr) 2018-05-08 2018-05-08 Installation et procédé de séparation d'un matériau en bande laminé flexible

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US (1) US20210245216A1 (fr)
EP (1) EP3566788B1 (fr)
CN (1) CN112088052B (fr)
PL (1) PL3566788T3 (fr)
WO (1) WO2019215044A1 (fr)

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WO2021105447A1 (fr) * 2019-11-27 2021-06-03 Muhr Und Bender Kg Système et procédé de laminage flexible d'un matériau en bande métallique
DE102022127171A1 (de) 2022-10-18 2024-04-18 TRUMPF Werkzeugmaschinen SE + Co. KG Maschinelle Anordnung und Verfahren zur Bearbeitung eines von einem Coil abgewickelten Blechbands

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US5875672A (en) * 1993-02-11 1999-03-02 Fourie; Eugene Method and apparatus for manufacturing metallic support beams for windscreen wiper blade assemblies
GB2504269A (en) * 2012-07-23 2014-01-29 Siemens Plc Method of Rolling Metal Plate
CN104551538B (zh) 2013-10-18 2017-02-01 沈阳东宝海星金属材料科技有限公司 一种差厚板定尺剪切制备方法
EP3181248A1 (fr) 2015-12-18 2017-06-21 Muhr und Bender KG Procede et installation de fabrication d'une platine de tole

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WO2021105447A1 (fr) * 2019-11-27 2021-06-03 Muhr Und Bender Kg Système et procédé de laminage flexible d'un matériau en bande métallique
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DE102022127171A1 (de) 2022-10-18 2024-04-18 TRUMPF Werkzeugmaschinen SE + Co. KG Maschinelle Anordnung und Verfahren zur Bearbeitung eines von einem Coil abgewickelten Blechbands

Also Published As

Publication number Publication date
PL3566788T3 (pl) 2021-08-16
EP3566788B1 (fr) 2021-02-17
CN112088052B (zh) 2023-03-10
US20210245216A1 (en) 2021-08-12
CN112088052A (zh) 2020-12-15
WO2019215044A1 (fr) 2019-11-14

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