EP4263084A1 - Procédé et appareil de redressement d'éléments allongés - Google Patents

Procédé et appareil de redressement d'éléments allongés

Info

Publication number
EP4263084A1
EP4263084A1 EP21847782.6A EP21847782A EP4263084A1 EP 4263084 A1 EP4263084 A1 EP 4263084A1 EP 21847782 A EP21847782 A EP 21847782A EP 4263084 A1 EP4263084 A1 EP 4263084A1
Authority
EP
European Patent Office
Prior art keywords
assembly
straightening
unit
value
degree
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.)
Pending
Application number
EP21847782.6A
Other languages
German (de)
English (en)
Inventor
Massimo Montemarani
Marco Cesari
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.)
Schnell SpA
Original Assignee
Schnell SpA
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 Schnell SpA filed Critical Schnell SpA
Publication of EP4263084A1 publication Critical patent/EP4263084A1/fr
Pending legal-status Critical Current

Links

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
    • 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
    • B21D3/12—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 stretching with or without twisting

Definitions

  • the present invention relates to a method and an apparatus for straightening elongated elements, in particular metal elements, metal sections and rods for reinforced concrete and similar products.
  • Apparatuses for processing profiles are known, which provide straightening assemblies, intended to straighten the material before use or before subsequent cutting to size and possibly bending and calendering processes. Straightening is necessary to eliminate any deformations shown by the material, especially if it is packaged in rolls and therefore is also deformed by the same winding condition.
  • the aforementioned apparatuses may comprise straightening assemblies made by means of a plurality of pairs of counter-rotating wheels or rollers, staggered along the feeding line, through which the element is fed, so as to subject each section of the element in transit to cyclical yielding actions due to bending, aimed at eliminating the original curvature.
  • Patent US 1 ,239,175 illustrates, for example, an apparatus for straightening metal wires, comprising a first set of counter-rotating wheels and a second set of counter-rotating wheels, arranged on mutually orthogonal planes.
  • the straightening units require adjustment actions, to adapt the sinuosity of the path, and therefore the straightening actions, to more or less deformed type and state of the material to be treated.
  • the patent EP3445509 illustrates a method and an apparatus for automatically adjusting the straightening of metal elongated elements.
  • the patent illustrates a detection assembly comprising at least a first sensor element positioned on a first detection plane and a second sensor element positioned on a second detection plane, to detect respectively at least one first datum and a second datum, respectively indicating an instant value of the distance from a section of the element being processed.
  • These measurements suitably processed by a control unit, are used to provide indications of the degree of straightness obtained and, therefore, indications of regulation for the straightening members.
  • patent EP3209973 illustrates a magneto resistive sensor that can be used in detecting the positioning of a section of the element being processed, to automatically provide data indicative of any residual bends to the control unit of a processing apparatus, useful for an automatic adjustment of the straightening members.
  • the aim of the present invention is to solve the aforementioned problems, devising a method and an apparatus for straightening elongated elements, in particular metal elements, which achieves an effective straightening, in particular stable over time, in an easy way.
  • a further object of the present invention is to offer a method and an apparatus for straightening elongated elements, in particular metal elements, which straighten these elements in a completely automatic way.
  • Another object of the present invention is to provide a method and apparatus that allow straightening elongated elements, respecting the requirements imposed by law and regulations in force for metal profiles to be used, in particular, in the construction sector.
  • Still another object of the present invention is to provide a method and an apparatus that
  • Even further object of the invention is to provide an apparatus for straightening elongated elements, in particular metal elements, having simple construction and functional conception, safe and reliable in use, as well as of relatively low cost.
  • the method for straightening elongated elements, in particular metal elements, provides for arranging, for at least one element along a feeding line in a feeding direction, in any order, at least one drawing assembly and at least one straightening assembly comprising at least a first unit, configured to subject the element to a yielding action.
  • the method then provides for feeding the element along said feeding line by means of the drawing assembly through the at least one straightening assembly, as well as to detect, by means of a measuring assembly, a datum that can be correlated to the quantity of energy expended for said action of yielding, performed in particular by the first unit of the straightening assembly or by the entire straightening assembly.
  • the method according to the invention is based on a correlation between the amount of energy consumed by the straightening assembly, in particular by the aforementioned first unit, and the degree of yield suffered by the element.
  • the method provides for carrying out a direct or indirect detection of the aforementioned energy consumption, by measuring an easily measurable quantity, for example the temperature of the element, the axial stress on at least one member of the straightener, as a constraining reaction produced by the yielding action on the element, the electrical absorption of a drive assembly of the drawing assembly or the activation frequency of a part of the straightening assembly, configured for a precise correction of the degree of straightening.
  • an easily measurable quantity for example the temperature of the element, the axial stress on at least one member of the straightener, as a constraining reaction produced by the yielding action on the element, the electrical absorption of a drive assembly of the drawing assembly or the activation frequency of a part of the straightening assembly, configured for a precise correction of the degree of straightening.
  • Each of these measurements represents, possibly also separately, a quantitative indicator, proportional to the energy transferred to the element due to the suffered deformation.
  • the method may also provide for a combination of these direct or indirect detections.
  • the method provides for comparing the degree of yield thus elaborated with a minimum threshold value, in order to suitably adjust the straightening members of the first unit, if this threshold has not been initially reached.
  • the method involves comparing the degree of yield processed with a maximum threshold value, in order to avoid excessive yielding of the element, which could cause the deterioration of the mechanical characteristics of the element, as well as an excessive expenditure of processing energy and premature and unnecessary wear of the parts of the apparatus.
  • the method provides that the processing unit makes an appropriate feedback on the straightening unit, in particular on the first unit, further processing an adjustment command based on the degree of yield related to the said indicative datum.
  • the method can stably erase the "memory" of the shape previously assumed by the element, preferably acting in an adjustment range in which the yield undergone by the element upon passing through the straightening assembly is at least sufficient o the most suitable for obtaining an optimal result in terms of stability and energy consumption or not excessive, that is such as to damage the material by modifying the established mechanical characteristics.
  • the material of which the element is made for example steel, usually has an elasticity that tends to make it return at least in part to its original geometry when this is forcibly deformed.
  • the element if it is wound in rolls, it has a main curvature given by the roll winding, but also other shape anomalies, for example buckles, oriented in different directions, whose radius of curvature is presumably different and accidental with respect to that of the main curvature.
  • other shape anomalies for example buckles, oriented in different directions, whose radius of curvature is presumably different and accidental with respect to that of the main curvature.
  • this "shape memory" is deleted, effectively controlling the degree of yield, therefore the degree of non-elastic deformation, imposed in at least a part of the section of the element by the straightening members, so as to obtain a stable straightening.
  • the control of the degree of yield allows the determination of the portion of the section of the element actually affected by yield or plasticization. If this share is sufficient, with respect to the entire section, then the element can be straightened in a stable way, even if the remaining portion is deformed in an elastic way.
  • This portion is controlled in an optimal way, according to one aspect of the method, by comparing the degree of yield processed with minimum and maximum threshold values, as previously mentioned, to ensure effective straightening, but also to prevent the yielding action from being excessive and that therefore involving a waste of energy, as well as the
  • the yielding action does not exceed the maximum threshold value, in order to avoid the alteration of the mechanical characteristics of the material and, instead, to guarantee the satisfaction of the requirements imposed on the materials by the regulations in force, for example by the standards called "Eurocodes", applicable to construction materials.
  • the method preferably provides for feeding the element through at least a second unit of the straightening assembly, arranged downstream of the first unit, to exert a precise correction or straightening action thereon, aimed at cooperating with the first unit so that the element achieves the desired degree of straightness.
  • This correction action can preferably be exercised with the coordination of a detection assembly arranged downstream of the second correction unit, configured to detect a position datum of the element, indicative of the degree of straightness of the element downstream of the straightening assembly, preferably of the second unit, and possibly allowing the feedback regulation of the second unit.
  • This detection assembly can be for example of the type in contact with the element to be straightened, for example of the type illustrated in the application W02020/230181 of the same Applicant, or without contact, for example by means of one or more sensors of the type illustrated in the patent EP3445509 or in application W02020/174507 of the same Applicant, or more generally for example magneto resistive, optical, laser or similar sensors.
  • the datum indicative of the aforementioned amount of energy expended is the frequency with which the second unit is activated to perform the correction or precise adjustment.
  • the minimum threshold value corresponds to a maximum frequency value, which may indicate an excessive activation of the second unit and therefore an insufficient degree of yield of the element.
  • the maximum threshold value in this case corresponds to a minimum frequency value, indicative of a reduced activation of the second unit and therefore of an excessive degree of yield of the element.
  • the method preferably comprises the further steps of detecting the frequency with which the second unit is activated, checking if the detected value is included in an interval between said minimum frequency value and said maximum frequency value and intervening on an adjustment of the first unit if the detected frequency value is out of said range.
  • the method provides that the data indicative of said amount of energy is a
  • said measurement assembly detects on the element a current temperature value downstream of the first unit of the straightening assembly and, preferably, a temperature reference value upstream of the first unit.
  • said current temperature value is detected downstream of the second unit of the straightening assembly, at which the increase in energy consumption may be detected, considering that the contribution of the precise adjustment operations of the straightening that take place through this second unit is reduced.
  • the method provides for indirectly measuring the amount of energy spent for the yielding action on the element.
  • the method involves measuring the effect due to the yielding action, in terms of transformation into heat, of the transfer of mechanical energy to the element.
  • the difference in temperature read between the inlet and outlet of the straightening assembly, in particular of the first unit, permits to effectively trace the amount of energy consumption and therefore the degree of yield imparted to the element.
  • the method can provide that the data indicative of the amount of energy is a variation in the absorption of an actuation unit of the drawing assembly.
  • the measuring assembly then detects an absorption value.
  • This method of implementing the method according to an aspect of the invention in order to measure the amount of energy spent to stretch the element at the yield strength, can be compromised by the undesired inclusion, in the measurement, of the absorption required for unrolling the element and of the inertia of the relative reel set in motion which, moreover, varies with the consumption of the latter.
  • This absorption rate which normally is discontinuous, due only to drawing, could be further distorted by the effect of braking actions, for example of mechanical origin, which can oppose the regular unrolling of the element.
  • the apparatuses in general, draw the element discontinuously, due to accelerations and decelerations due to the unrolling action and the arising inertia actions, also as a function of the set working speed.
  • the method according to the invention therefore allows not to excessively wear the apparatus and to control the consumption of electricity by keeping it to the strict minimum needed to obtain the desired result.
  • the method according to the invention is applicable to any type of straightening assembly, for example with rollers, rotors, hyperbolic rotors, with the appropriate adaptations to individual cases.
  • the apparatus for straightening elongated elements, in particular metal elements, according to the invention includes a drawing assembly and a straightening assembly equipped with at least a first unit configured to subject the element to a yielding action.
  • the apparatus also comprises a measurement assembly configured to detect a datum indicative of the amount of energy spent for the aforementioned yielding action, performed in particular by the first unit of the straightening assembly, as well as a processing unit configured to correlate the data indicative of said quantity of energy with a degree of yield obtained on the element by passing through the straightening assembly.
  • the processing unit is also configured to compare said processed degree of yield with a minimum threshold value and/or with a maximum threshold value, corresponding, respectively, to a degree of yield insufficient for obtaining a desired straightening and to a degree of excessive yielding, which can lead to the deterioration of the element and/or excessive energy consumption.
  • the measuring assembly comprises at least one temperature sensor device, preferably of the non-contact type, for example a laser detector or a thermal imager.
  • the measuring assembly is configured to detect a current temperature value of the element downstream of the first unit of the straightening assembly and, preferably, a temperature reference value of the element upstream of the first unit.
  • the data indicative of the aforementioned amount of energy is then a temperature variation resulting from the difference between the current value and the temperature reference value.
  • the measuring assembly preferably comprises at least one energy absorption sensor, connected to a drive unit of the drawing assembly.
  • the measuring assembly is preferably configured to detect a current absorption value and an absorption reference value. Said indicative data of the amount of energy absorbed by the element is then a change in absorption resulting from the difference between the current value and the reference value of absorption.
  • the measuring assembly preferably comprises at least one sensor for measuring the axial stress, connected to the support of the straightening assembly and configured to detect a datum indicative of the constraint reaction transmitted by the element to the support by
  • the measuring assembly is preferably configured to detect a current axial stress value. Said indicative data of the amount of energy absorbed by the element as a result of the yielding action is then a measure of said axial stress.
  • the apparatus comprises, in this case, at least one sensor device of the type of a strain gauge or a load cell, to detect this axial stress.
  • the apparatus also preferably comprises a detection assembly arranged downstream of the straightening assembly to detect a position datum, indicative of the residual curvature or degree of straightness of the element, for example according to patent EP3445509 or according to applications W02020/174507 or W02020/230181 of the same Applicant.
  • the straightening assembly preferably comprises a second unit, arranged downstream of the first unit or in the final part thereof, and configured to perform a precise correction of the straightening carried out on the element.
  • the second unit can be made by an extension of the first unit, in particular by a respective set of wheels, to perform said precise adjustment or correction of the straightening action, with yielding, already performed on the element by the first unit.
  • the apparatus can include several straightening assemblies, for example arranged on mutually incident planes. In this case it is preferable to detect a degree of yield for each straightening assembly.
  • the aforementioned measuring assembly may include at least one frequency detector configured to detect the frequency with which the second unit is activated to perform the precise correction or adjustment.
  • said minimum threshold value corresponds to a maximum frequency value and said maximum threshold value corresponds to a minimum frequency value.
  • the frequency detector can be conformed by the same memory register of the control unit of the apparatus, which records the adjustment actions carried out on the second unit.
  • the frequency detector can be an additional device, intended to detect said activation frequency of the second unit.
  • the processing unit can be configured to check whether the frequency value detected by said frequency detector is included in an interval between said minimum frequency value and said maximum frequency value and to intervene on an adjustment of the first unit if the detected frequency value is out of this range.
  • the method and apparatus according to the invention can be applied to the power supply of one or more elements at the same time.
  • Figures 1 and 2 are respectively a perspective view and a front view of the apparatus for straightening elongated elements, according to the invention
  • Figures 3 and 4 are respectively a second embodiment of the apparatus according to the invention, in which a further straightening assembly is used.
  • the apparatus 1 can be used for the processing of only one element 2 at a time or of a plurality of elements 2, for example a pair, fed simultaneously.
  • the apparatus 1 comprises a drawing assembly 3, a straightening assembly 4 and a measuring assembly 5, preferably in succession along a feeding line according to a feeding direction A.
  • the drawing assembly 3 comprises a pair of wheels 3a, 3b, which are opposite each other with respect to the feed line and counter-rotating, around rotation axes lying on the same plane orthogonal to the feed direction.
  • the wheels of the drawing assembly 3, as known in the art, are alternatively movable between a rest condition, in which they are moved away from the feed line and do not engage the element 2 to be drawn, and an active condition, in which the wheels are brought close to element 2, to impose a dragging action thereon.
  • At least one of the driving wheels for example the wheel 3a from a first side of the feed line or both are rotated by a suitable drive unit, comprising at least one motor member known in the art.
  • This drive unit absorbs a quantity of energy to exercise the drawing action of the element 2 in particular through the straightening assembly 4.
  • the drawing assembly 3 may comprise one or more assemblies and can be of any type, for example with wheels, tracks, pliers or a combination of these types, provided that it is suitable for the purpose of supplying the element 2, for example by pulling it or pushing it, through the apparatus 1.
  • the drawing assembly 3 can be arranged in any position of the apparatus, for example upstream, downstream or between straightening assemblies 4, if provided in a plurality, as described below, or be made by at least part of the straightening assembly, by suitably motorizing certain parts thereof.
  • the straightening assembly 4 comprises a first unit 40 and, preferably, a second straightening unit 41 .
  • roller 10 are of the roller type, but it is possible to provide that one or both are of a different type, for example of the type with rotors or hyperbolic rotors or even mixed.
  • the first unit 40 comprises for example a first series of rollers 40a and a second series of rollers 40b, which are opposite and staggered along the feed line.
  • rollers 40a, 40b are alternatively movable between a rest condition, away from the element 2, and a working condition, in which they are mutually moved near to engage the element 2, defining a loop path between them aimed at exerting a yielding and therefore a straightening action on the fed element 2.
  • this yielding action serves to plasticize at least part of each section of element 2, so as to cancel the "memory" of previous deformations or curvatures present on element 2.
  • the second unit 41 is arranged downstream of the first unit 40 or part thereof, to perform a so-called "fine" correction action of the straightening. It can be of a known type, for example of the type illustrated in EP2600991 or in EP 0947256 of the same Applicant. Alternatively, the second unit 41 can be made by a final part of the first unit 40, or by an extension thereof, in particular by a respective set of wheels, to perform said "fine" adjustment or correction of the straightening action with yield already carried out on element 2 by the first unit 40.
  • the second unit 41 comprises, for example, a pair of contrast wheels 41a, which are opposite and staggered with respect to a central wheel 41 b.
  • the contrast wheels 41a and the central wheel 40b are movable by an adjustment, reciprocal moving near or away, so as to accentuate or, on the contrary, reduce the corrective action exerted by the second unit 41.
  • the apparatus 1 also includes a measuring assembly 5, configured to detect a data indicative of the amount of energy absorbed by the element 2 due to the straightening action through the straightening assembly 4. Essentially, this data is indicative of the degree of yield of the element 2, therefore of the effectiveness and stability of the straightening.
  • the measuring assembly 5 detects said data, in relation to the straightening action, in particular the yielding action, exerted on the element 2 by the first unit 40.
  • the measuring assembly 5 may comprise for example a sensor device 50, for example a thermal imager or a laser detector, configured to detect an actual temperature value of the element 2 downstream of the straightening assembly 4, preferably downstream of the first unit 40, between the first unit 40 and the second unit 41 , or, alternatively, downstream of the second unit 41.
  • a sensor device 50 for example a thermal imager or a laser detector
  • the present value is also affected by the effect of the finishing action exerted by the second unit 41 , which is very low compared to the yielding action exerted especially by the first unit 40, but which is also representative of a small
  • the measuring assembly 5 preferably comprises a further sensor device 51 configured to detect a reference value of the temperature of the element 2 upstream of the straightening assembly 4.
  • the indicative data can then be represented by the temperature variation At through the straightening assembly 4 or, in particular, through the first unit 40.
  • the temperature variation can be given by the difference between the current temperature value measured by the sensor device 50 and the reference value given by the ambient temperature, assuming that the element 2 is introduced at this temperature in the straightening assembly 4.
  • the temperature variation At can be determined by the difference between the current value measured by the sensor device 50 and the reference value measured by the additional sensor device 51.
  • the apparatus includes a processing unit configured to process the indicative data of the energy spent for the yielding action on element 2, processing current measured values, for example of temperature.
  • the processing unit can process this indicative data based on the axial stress exerted on the straightener by virtue of the yielding action and/or based on the power absorbed thereby.
  • the axial stress can be measured by means of at least one sensor device connected for example to the support of the straightening assembly, preferably made by means of an extensometer device or a load cell device.
  • the current and reference value of the absorbed power in particular, can be measured by means of a respective sensor device connected to the drive unit of the straightening assembly.
  • the apparatus 1 may further comprise a detection assembly 6, arranged downstream of the straightening assembly 4, in particular downstream of the second unit 41.
  • This detection assembly 6 can comprise for example at least one sensor for detecting the position of a section of the fed element 2, so as to determine the degree of straightness of the element 2 and, in the event of deviations from a desired degree of straightness, allow the straightening members, in particular the second unit 41 to do the appropriate corrections.
  • the detection assembly may be made, for example, according to what is described in patent EP3445509 o in applications W02020174507 or W02020/230181 of the same Applicant.
  • the measuring assembly 5 can comprise at least one
  • said 12 frequency detector configured to detect the frequency with which the second unit 41 is activated for precise correction or adjustment.
  • said minimum threshold value corresponds to a maximum frequency value and said maximum threshold value corresponds to a minimum frequency value.
  • the frequency detector can be conformed by the same memory register of a control unit of the apparatus, which records the adjustment actions carried out on the second unit.
  • the frequency detector can be an additional device, intended to detect said activation frequency of the second unit 41 .
  • the processing unit can be configured to check whether the frequency value detected by said frequency detector is included in an interval between said minimum frequency value and said maximum frequency value and to intervene on an adjustment of the first unit if the detected frequency value is out of this range.
  • the element 2 is fed thanks to the drawing assembly 3 along the feed line in the feed direction A, through the straightening assembly 4 which exerts a yielding action for the straightening of the same element 2.
  • the measuring assembly 5 detects an actual temperature value at a section of the element 2 downstream of the straightening assembly 4, preferably between the first unit 40 and the second unit 41 , and detects or estimates a reference value upstream of the first unit 40 of the straightening assembly 4.
  • the measuring assembly 5 can measure a current value for the axial stress transmitted by the element by reaction, for example on the support of the straightening assembly, or for the power absorbed by the straightening assembly, by means of the appropriate sensor devices described above.
  • the measuring assembly 5 can measure an actual frequency value with which the second unit 41 is activated to correct the straightening of the element 2.
  • the measuring assembly 5 transmits these values to the processing unit of the apparatus that processes the difference, and correlates it to the degree of yield of the element 2 due to the crossing of at least the same first unit 40.
  • This processed degree of yield is then compared with a minimum threshold value and/or with a maximum threshold value.
  • the processing unit determines the adjustment to be made to the straightening members of the straightening assembly 4, in particular to the first unit 40, so that, for example, the second unit 41 can stably achieve
  • the detection assembly 6 can coordinate corrective actions on the straightening assembly 4, in particular on the second unit 41 , by detecting data relating to the position of the element, therefore to its curvature, at the output of the straightening assembly 4.
  • the apparatus 1' can include in addition to the straightening assembly 4 a further straightening assembly 4' oriented orthogonally to the first one.
  • the straightening assembly 4 can be arranged on a substantially vertical plane, while the further straightening assembly 4' can be arranged on a substantially horizontal plane.
  • Each straightening assembly 4, 4' preferably comprises a respective first unit 40, 40' and a respective second unit 41 , 41'.
  • the drawing assembly 3' for example made by two pairs of counter-rotating rollers or in any other way, provided that it is suitable for the purpose, is preferably interposed between the two straightening assemblies 4, 4'.
  • an insertion device 30' can be further provided with the function of allowing the insertion of element 2.
  • Figures 3, 4 also illustrate, by way of example, a cutting assembly 7 and a bending assembly 8, arranged in succession downstream of the straightening assemblies 4, 4'.
  • the apparatus 1' may usefully comprise said detection assembly 6' to detect the degree of straightness of the element 2.
  • the detection assembly 6' comprises a plurality of detection sensors 60 arranged at or below the work surface 80 of the bending assembly 8.
  • the apparatus T is functionally completely similar to the first described embodiment. Therefore, the same reference numerals have been used in the figures to indicate structurally and/or functionally similar assemblies or elements.
  • the apparatus T comprises a measuring assembly 5, schematically shown in Figure 3, to measure a datum that can be correlated to the energy spent for the yielding of the element 2, so as to obtain, following a possible necessary adjustment, an effective and stable straightening, but never excessive.

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

Abstract

Le présent procédé de redressement d'éléments allongés, en particulier d'éléments métalliques, consiste à disposer le long d'une ligne d'avancée, pour au moins un élément (2) dans une direction d'avancée (A), un ensemble d'étirage (3, 3') et un ensemble de redressement (4, 4') comprenant au moins une première unité (40, 40') conçue pour soumettre l'élément (2) à une action de déformation ; puis il consiste à faire avancer l'élément (2) le long de la ligne d'avancée au moyen dudit ensemble d'étirage (3, 3') à travers ledit ensemble de redressement (4, 4'), afin de détecter, au moyen d'un ensemble de mesure (5), une donnée relative à la quantité d'énergie dépensée pour ladite action de déformation réalisée sur l'élément (2) par ledit ensemble de redressement ou, en particulier, par ladite première unité (40, 40') de l'ensemble de redressement, et d'envoyer ladite donnée indicative de ladite quantité d'énergie dépensée à une unité de traitement.
EP21847782.6A 2020-12-21 2021-12-15 Procédé et appareil de redressement d'éléments allongés Pending EP4263084A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT202000031730 2020-12-21
PCT/IT2021/050416 WO2022137270A1 (fr) 2020-12-21 2021-12-15 Procédé et appareil de redressement d'éléments allongés

Publications (1)

Publication Number Publication Date
EP4263084A1 true EP4263084A1 (fr) 2023-10-25

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WO (1) WO2022137270A1 (fr)

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CN116550797B (zh) * 2023-07-12 2023-11-03 太仓庄正数控设备有限公司 游标卡尺扭矫机控制方法及系统

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Publication number Priority date Publication date Assignee Title
JPH08300044A (ja) * 1995-04-27 1996-11-19 Nippon Steel Corp 棒線材連続矯正装置
JP3456053B2 (ja) * 1995-04-27 2003-10-14 日本精工株式会社 案内レールの曲がり矯正装置
ITUA20162848A1 (it) * 2016-04-22 2017-10-22 Schnell Spa Metodo per regolare automaticamente la raddrizzatura di elementi metallici di foggia allungata e apparecchiatura per raddrizzare gli stessi elementi
IT201900006816A1 (it) * 2019-05-14 2020-11-14 Schnell Spa Metodo e apparecchiatura per rilevare la configurazione di elementi di foggia allungata

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