EP1348658B1 - Dispositif de déroulement de bande pour des rouleaux de bandes - Google Patents

Dispositif de déroulement de bande pour des rouleaux de bandes Download PDF

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Publication number
EP1348658B1
EP1348658B1 EP02425197A EP02425197A EP1348658B1 EP 1348658 B1 EP1348658 B1 EP 1348658B1 EP 02425197 A EP02425197 A EP 02425197A EP 02425197 A EP02425197 A EP 02425197A EP 1348658 B1 EP1348658 B1 EP 1348658B1
Authority
EP
European Patent Office
Prior art keywords
arms
roll
rolls
crosspiece
web
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.)
Expired - Lifetime
Application number
EP02425197A
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German (de)
English (en)
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EP1348658A1 (fr
Inventor
Mauro Adami
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.)
Fosber SpA
Original Assignee
Fosber 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 Fosber SpA filed Critical Fosber SpA
Priority to ES02425197T priority Critical patent/ES2261624T3/es
Priority to DE60211299T priority patent/DE60211299T2/de
Priority to AT02425197T priority patent/ATE325765T1/de
Priority to EP02425197A priority patent/EP1348658B1/fr
Publication of EP1348658A1 publication Critical patent/EP1348658A1/fr
Application granted granted Critical
Publication of EP1348658B1 publication Critical patent/EP1348658B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/12—Lifting, transporting, or inserting the web roll; Removing empty core
    • B65H19/126—Lifting, transporting, or inserting the web roll; Removing empty core with both-ends supporting arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/40—Holders, supports for rolls
    • B65H2405/42—Supports for rolls fully removable from the handling machine
    • B65H2405/422—Trolley, cart, i.e. support movable on floor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard
    • B65H2701/1762—Corrugated

Definitions

  • the invention refers to a roll stand, i.e. a device for unwinding rolls of web material to be fed to a production line. Particularly, but not exclusively, the invention refers to a roll stand or roll unwinding device for unwinding web to a corrugator, i.e. to a system for making corrugated cardboard.
  • the invention also refers to a method for unwinding web coming from rolls to a processing line and particularly to the method for handling the rolls in the unwinding device.
  • Continuous webs are processed in many industrial sectors to feed a continuously working processing line.
  • the web rolls must be arranged in unwinding position and replaced with new rolls whenever the rolls are finished or need to be replaced with rolls presenting different characteristics for any reason.
  • the so-called "wet-end” section of the production line i.e. the section gathering the machines which corrugate the paper webs, glue them to smooth webs to form the layer, or layers, of corrugated cardboard and dry the resulting web, must be fed by a number of rolls of web corresponding to the number of paper layers, or sheets, needed for form the corrugated cardboard. For example, three paper webs must be supplied at the same time to make single-wave corrugated cardboard.
  • the web rolls must be replaced frequently, not only when they are finished but also specifically according to the rapid succession of industrial production cycles. This is because the line often process very small jobs in this industrial sector for very short times so that the paper rolls to be fed to the corrugator must be replaced between one job and the other. Replacement is required because the different jobs may require different types of paper.
  • the roll replacement phase is, therefore, a critical aspect of the production cycle and effects the total hourly production rate, to the extent that also a modest reduction in the time needed to replace a roll may be a considerable advantage in terms of productivity.
  • the rolls which are extracted from the web unwinding device to be replaced with others after processing a job and before starting the following job are reused at a later time, when required for processing other jobs.
  • This aspect particularly in the sector of corrugated cardboard production line web unwinding devices or roll stands - entails the additional difficulty of needing to handle rolls of considerably variable diameter with the same device. This is because a half used roll, which is unloaded after processing a job, can be reused and inserted as a new roll in a later job cycle at a later time.
  • the unwinding device must be consequently capable of handling rolls of different diameters.
  • the unwinding device comprises two lateral new roll loading stations and one central unloading station for the finished roll or the roll which needs to be replaced to process a different job with respect to the current one.
  • unwinding devices of this kind are described in US-A-4,919,353, US-A-5,004,173, and JP-A-7-157156. These unwinding devices are equipped with two pairs of pivoting arms which take the rolls from the lateral loading stations and bring them to an unwinding position and - at the end of the job - deposit them in the unloading station.
  • JP-A-11-11749 describes an unwinding device equipped with a pair of pivoting arms which take and lift the roll, which device is equipped with a diameter sensor, which detects the diameter of the roll to be loaded onto the unwinding device and controls the movement of the arms according to the measured diameter value.
  • a roll stand or unwinding device for corrugators is described in US-A-4,706,905, which is equipped with two pairs of arms, which take the new rolls from mobile trolleys onto which the rolls to be replaced are also unloaded.
  • the arms are equipped with a pivoting movement on a horizontal axis, which is parallel to the roll axis, and with a lifting and lowering movement of the pivoting axis of the arms.
  • the system is complex. Furthermore, the use of two pairs of arms working in only two stations makes roll change a long operation with negative effects on the total production rate of the processing line in which the roll stands are inserted.
  • US-A-4,930,713 describes a roll stand or paper roll unwinding device for a corrugator which faces the problem of roll diameter variability by fitting two pairs of arms on pivoting axes, which are - in turn - equipped with an eccentric movement.
  • the centers or cones equipping the distal ends of the arms, i.e. the ends which are opposite to the pivoting axis, can move along a vertical trajectory.
  • the system is complex and, additionally does not allow high speeds during the roll change operation.
  • EP-A-0700854 describes an unwinding device or roll stand for corrugators in which the trolley carrying the rolls traverses in a direction which is orthogonal to the pivoting axis of the arms, in order to handle rolls of variable diameter.
  • the translation system of the roll carrying trolley is particularly complex. Furthermore, also in this case, the system only presents two loading and unloading stations and the roll change operations is consequently slow.
  • EP-A-0968945 describes an unwinding device or roll stand for corrugators which solves the problem of handling variable diameter rolls once again by modifying the position of the horizontal pivoting axis of the arms which take and deposit the rolls.
  • the system is complex and, also in this case, due to the presence of only two loading and unloading stations, roll replacement is slow and negatively effects the production rate.
  • a device according to the preamble of claim 1 is disclosed in JP-1-127550.
  • Object of the invention is to make a roll stand or roll unwinding device specifically intended for corrugators, i.e. for systems for making corrugated cardboard, which overcomes the problems of traditional devices, and which particularly reduces the time required to replace the rolls and efficiently handle rolls whose diameters may also considerably vary, employing a simple structure.
  • unwinding device generically refers to a device for receiving a roll of web which is fed to a downstream system.
  • the term thereby comprises the device commonly called “roll stand” in this specific technical field.
  • the means for aligning the engagement members with the roll axis can consist of system for lifting and lowering the rolls arranged on floor level which lift the rolls from the floor towards the arms and vice versa. This solution achieves high production rate speeds.
  • the means for aligning the roll engagement members rolls carried by the arms with the axis of the roll to be engaged each time by the arms can be made in the form of an arm extending and shortening system.
  • the arms can extend and shorten telescopically to approach the resting plane of the rolls to be engaged and, consequently, take the engagement member to the height of the axis of the roll to be engaged, regardless of the diameter of the roll.
  • the roll replacement cycle is extremely rapid and the vertical mobility of the arms, by respective lengthening and shortening, permits easy handling of rolls with a variable diameter, without the need for complex arm operating systems and without the need for vertical roll lifting means, which increase the cost of the system and have to be housed in pits under floor level.
  • the supporting crosspiece can house a splicing device for joining the trailing edge of a web of a first unwinding roll to the leading edge of a web of a second roll which is standing by.
  • a splicing device for joining the trailing edge of a web of a first unwinding roll to the leading edge of a web of a second roll which is standing by.
  • Any kind of splicing device can be used, e.g. as that described in US-A-3,858,819.
  • the supporting crosspiece can be supported by vertical uprights, the crosspiece and the uprights thus forming a gantry structure which contains the two lateral stations and the central station. This configuration makes the device compact and effectively delimits the working area increasing the safety of the system.
  • the crosspiece comprises two parallel beams, each equipped with guiding means for the arms and each supported by a pair of vertical uprights.
  • the arms of each pair are fastened to a transversal element equipped with a guide which is orthogonal to the supporting crosspiece, the arms of each pair being mobile along the transversal element to reciprocally approach and distance each other.
  • the transversal element is mobile on said guiding means of said beams forming the crosspiece. The mobility of the arms along the transversal element confers an approaching and distancing movement with respect to the roll to the centers lowerly carried by the arms to axially either engage the roll or release it after processing.
  • Lengthening and shortening of the arms can be obtained with an appropriate extendible telescopic structure, which may be equipped with means which prevent reciprocal rotation of the components of said structure around the axis of the respective arm.
  • An unwinding device of the type herein described can be used to implement a method for feeding a web material to a corrugator for the production of corrugated cardboard, comprising the following phases:
  • the method can comprise the following phases:
  • the method according to the invention foresees that the roll is engaged by the arms and consequently is raised vertically by the arms to be moved to the intermediate unloading station. Conversely, if the arms are not extendible, the roll is lifted towards the arms by the vertical lifting means and consequently engaged by the arms to be moved towards the intermediate unloading station.
  • the example hereof illustrates a system in which the arms telescopically elongate and the rolls are engaged by the arms and vertically lifted before being translated from the loading station to the unloading station.
  • the roll can be lifted by a vertical lifting system to take it to a height, which is essentially fixed, on which the roll engagement means carried by the arms are arranged.
  • the unwinding device shown in the drawing illustrating this example comprises a supporting gantry structure, generally indicated by reference numeral 1.
  • the gantry structure comprises four uprights 3, 5, arranged on the vertexes of a rectangular plan of the device.
  • the uprights 3 are reciprocally joined by a beam 7, while the uprights 5 are reciprocally joined by a beam 9.
  • the two beams 7 and 9 form a crosspiece, which is generally indicated by reference numeral 11, of the gantry structure comprising four uprights 3, 5.
  • Reference numerals 13 and 15 indicate two lateral stations, which will hereof be called “lateral loading stations”, and reference numeral 17 indicates an intermediate station arranged between the two lateral loading stations, which will be hereof called “lateral unloading station”.
  • the rolls are inserted in each lateral loading station by means of any handling device, not illustrated in detail, e.g. by means of a trolley arranged approximately on floor level P, or by means of any other system.
  • a similar arrangement is provided for extracting the rolls from the intermediate unloading station.
  • the rolls are inserted in the lateral loading stations 13, 15 by means of a movement which is parallel to the axis of the rolls and come from the same side of the gantry structure 1 according to the arrows f13 and f15.
  • the rolls intended to leave the intermediate unloading station 17 can be extracted in the same direction according to which they are inserted in the lateral loading stations, or in the opposite direction, as shown by the arrows f17 and f17'.
  • the second solution is adopted when the device is arranged near an obstacle which prevents the free access to the stations 13, 15, 17 from one of the sides of the device, e.g. when the device is arranged near a perimetral wall of the plant.
  • transversal elements 21A and 21B translate along the two beams 7, 9 that define the corsspiece 11.
  • the element 21B is essentially symmetric and will not be described in detail.
  • the transversal element 21A comprises a hollow tubular beam 23 to whose ends respective plates 25 are applied.
  • the two plates 25 carry idle rollers 27, which roll on a guide 29 integral with the respective beam 7 or 9.
  • the guide 29, integral with the beam 7, forms a rack 31, which is meshed by a pinion 33 operated by a geared motor 35, in the lower part.
  • a torsion bar 37 coaxial to the hollow tubular beam 23, transmits movement to a pinion, also indicated by reference numeral 33, which meshes a rack, again indicated by reference numeral 31 and is integral with guide 29 fastened to the beam 9.
  • a guide 41 is integral with the tubular beam 23, orthogonal to the crosspiece 11 formed by the beams 7, 9, to which two slides 43 are connected.
  • the two slides move on the slide 41 by effect of a cylinder-piston actuator, or other appropriate actuator (not shown) so to reciprocally approach and distance each other along the guide 41.
  • Each slide 43 carries an extendible arm.
  • the two arms carried by each of the two transversal elements 21 are generally indicated with reference numerals 45A and 45B. Each are developed vertically downwards under the crosspiece 11.
  • Each extendible arm 45A, 45B is formed by two tubular elements, an external tubular element 46 and an internal tubular element 48 respectively. Key 49, integral with the external tubular element 46, engages a longitudinal recess 47 on the internal tubular element 48 to prevent the relative rotation of the two telescopic tubular elements.
  • Roll engagement members are carried by the lower end of the extendible arms 45A and 45B, the members in this embodiment consisting of respective centers 51 A, 51 B for engaging the tubular core of a web roll.
  • Each of the two extendible arms 45A, 45B is equipped with a hydraulic cylinder-piston actuator 55 which controls the elongation and the shortening of the respective arm 45A and 45B whose cylinder is fastened to the slide 43 and whose piston rod is fastened to the respective center.
  • a splicing device i.e. a device for joining the two webs from two different rolls and cutting the web from one of the two rolls to be replaced, is arranged inside the crosspiece 11.
  • the splicing device schematically indicated with reference numeral 61, is not illustrated in detail, and can be made using any known solution, e.g. according to that described in US-A-3,858,819.
  • Fig.1A shows a situation in which a roll B0 has just been arranged in condition to feed the web N0, which is wound on it, to a corrugator (not shown).
  • the roll B0 is engaged by the arms 45A, 45B of the first pair and has been lifted from the handling device, which took the roll to the lateral loading station 13. In this way, the roll B0 can turn freely by pulling the web N0.
  • a roll B1 of web N1 is inserted in the lateral loading station 15 during an appropriate phase.
  • the leading edge of the web, indicated with reference T1 (in the configuration shown in Fig. 1A), has not yet been arranged for being spliced to the web N0 of the roll B0.
  • the arms 45A, 45B which support said roll move from left to right passing from the lateral loading station 13 to the intermediate unloading station 17, as shown in Fig. 1B.
  • the roll B0 continues to feed the web N0, which is wound on it, to the corrugator.
  • the roll B1 was inserted in the lateral loading station 15 before the translation of the arms 45A, 45B which support the roll B0 from the station 13 to the station 17, it is understood that the roll B1 can also be inserted after the translation of the roll B0.
  • Fig.1B the leading edge T1 of the web N1 wound on the roll B1 was arranged in the splicing device contained in the crosspiece B0 for splicing at a later time when the roll B0 must be replaced with the roll B1.
  • the roll B1 is engaged by the centers of the respective arms 45A, 45B and lifted by shortening the arms. In this way, the roll B1 is free to turn on its axis to take the leading edge T1 of the web N1 into the splicing device.
  • Fig. 1C shows a subsequent phase in the working cycle in which the roll B0 is arranged on the handling device associated to the intermediate unloading station 17 by means of a vertical elongation stroke of the arms 45A, 45B.
  • the arms are shown in their maximum extension position. This means that, in this example, the roll B0 was unloaded after being used up. However, this situation is only one of those which can occur.
  • the roll B1 is unwinding its web N1, because between the configuration shown in Fig. 1B and the configuration shown in Fig. 1C, the web N0 has been spliced to the web N1. This operation is known per se and does not require particular description herein.
  • the arms 45A, 45B which support the roll B1 are shown in an essentially retracted position because the roll B1 has a high diameter.
  • the rolls handled by the device according to the invention can have any diameter. Consequently, the roll B1 (as the roll B0 in Figs. 1A, 1B) can have any diameter. It can be easily engaged by the arms 45A, 45B and carried to the lifted position by shortening the arms.
  • Fig. 1D shows a subsequent configuration in which the roll B2 is engaged by the respective arms 45A, 45B and lifted from the handling device which carried it to the lateral loading station 13.
  • the leading edge T2 of the web N2 has been arranged in the head of the splicing device, which for this purpose has been previously translated towards the left extremity of the supporting structure and consequently rightwards. A few meters of the web N2 is thus unwound to allow the leading edge T2 to be arranged in the splicing area of the two webs N1 and N2.
  • Fig. 1D shows that the roll B1 was moved horizontally along the crosspiece 11 by the respective arms 45A, 45B from the lateral loading station 15 to the intermediate loading station 17. After this transfer, the lateral loading station 15 is free to insert an additional roll B3. The latter is drawn with a dotted line in Fig. 1D to indicate that it can be inserted at a later time. Furthermore, by the way of an example, the roll is shown with a diameter which is smaller than above. References N3 and T3 indicates the web and the respective leading edge.
  • the following operation consists in splicing the free leading edge T2 of the web N2 to the web N1 from the roll B1 and cutting the end of the latter.
  • the residual roll B1 (or its finished tubular core) will then be lowered by telescopically extending the respective arms 45A, 45B in the intermediate unloading station, so that the arms 45A, 45B are available to engage the roll B3.
  • the residual roll B1 is distanced from the intermediate unloading station 17 to allow moving the roll B2 from the lateral loading station 13 to the central station 17 from where unwinding of the web N2 continues.
  • the device according to the invention can be used to handle rolls B of any diameter simply by lengthening and shortening the arms 45A, 45B. Reciprocally approaching and distancing the arms 45A, 45B of each pair is used on the other hand, in a way known per se to axially engage rolls also of variable axial length.
  • the possible alignment of the rolls which can present the axis not perfectly parallel to the union line of the axes of the centers 51 A, 51 B can occur by using independent actuators for the translation movement of the arms 45A, 45B along the respective transversal element 21, in the following way: the arms are lengthened or shortened to take the centers or cones 51 A, 51B to the height of the rolls axis and are kept at a reciprocal distance which is higher than the axial length of the roll.
  • One of the two arms (e.g. arm 45A) at this point is approached to the roll to insert the respective center 51A in the core of the roll.
  • the transversal element 21 A (or 21 B) is moved by dragging the roll with the corresponding center to turn it on a vertical axis.
  • the opposite end of the roll is approximately stationary. The movement ceases when the other center 21B (or 21A) is aligned with the respective end of the tubular winding core of the roll and can be engaged in it.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Unwinding Webs (AREA)

Claims (7)

  1. Dispositif de déroulement de bande à partir d'un rouleau comprenant
    - deux paires de bras mobiles (45A, 45B) pour supporter des rouleaux (B0,B1,B2,B3) de bande (N0,N1,N2,N3), chaque bras étant muni d'éléments (51A,51B) coopérant avec les rouleaux ;
    - une structure de support (3,11) pour lesdites paires de bras ;
    - deux postes latéraux (13,15) pour charger les rouleaux pleins ;
    - et un poste intermédiaire (17) pour décharger les rouleaux utilisés,
    dans lequel ladite structure présente une traverse de support (11), le long de laquelle translatent lesdites paires de bras (45A,45B), ladite traverse s'étendant au-dessus des deux postes latéraux et du poste intermédiaire ; dans lequel lesdits bras sont développés vers le bas en partant de ladite traverse ; et dans lequel sont prévus des moyens pour aligner les éléments de coopération de rouleaux supportés par les bras avec l'axe du rouleau coopérant avec lesdits éléments ;
    caractérisé en ce que la traverse de support reçoit un dispositif de raccordement (61) pour raccorder le bord de fuite d'une bande d'un premier rouleau de déroulement sur le bord d'attaque d'une bande d'un second rouleau qui est en attente ; et en ce qu'au-dessus de ladite traverse (11) sont disposés des rouleaux libres fixes (63,64,65,66) et des galets de guidage mobiles (67,68) fixés sur un chariot (71) qui translate en parallèle à la traverse (11) sur deux poutres (7,9) formant ladite traverse (11).
  2. Dispositif de déroulement selon la revendication 1, caractérisé en ce que lesdits bras peuvent être allongés ou raccourcis, l'allongement et le raccourcissement des bras formant les moyens pour aligner les éléments de coopération des rouleaux avec l'axe des rouleaux.
  3. Dispositif de déroulement selon la revendication 1 ou 2, caractérisé en ce que ladite traverse de support est supportée par des montants verticaux (3), la traverse et les montants formant une structure de portique qui contient les deux stations latérales et la station centrale.
  4. Dispositif de déroulement selon une ou plusieurs des revendications précédentes, caractérisé en ce que ladite traverse comprend deux poutres parallèles (7,9), chacune étant équipée de moyens de guidage (29) pour lesdits bras.
  5. Dispositif de déroulement selon la revendication 4, caractérisé en ce que les bras de chaque paire sont reliés entre eux par un élément transversal (21A;21B) muni d'un guidage (41) qui est orthogonal par rapport à ladite traverse (11), les bras de chaque paire étant mobiles le long de l'élément transversal pour le rapprochement et l'éloignement entre eux en mouvement de va-et-vient ; et en ce que ledit élément transversal (21 A ;21B) est mobile sur les moyens de guidage (29) desdites poutres (7,9).
  6. Dispositif de déroulement selon une ou plusieurs des revendications précédentes, caractérisé en ce que chacun desdits bras est muni d'un organe d'actionnement (55) qui commande le mouvement vertical d'allongement et de raccourcissement, et comporte une structure télescopique (46-49) avec un élément tubulaire extérieur (46) et un élément tubulaire intérieur (49), la partie supérieure étant fixée sur ledit élément transversal (21) et l'extrémité inférieure étant munie d'un siège (51A,51B) pour l'engagement du rouleau.
  7. Dispositif de déroulement selon la revendication 6, caractérisé en ce que ladite structure télescopique comprend des moyens (47,49) pour éviter la rotation réciproque, sur l'axe du bras respectif, desdits éléments tubulaire intérieur et extérieur.
EP02425197A 2002-03-29 2002-03-29 Dispositif de déroulement de bande pour des rouleaux de bandes Expired - Lifetime EP1348658B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES02425197T ES2261624T3 (es) 2002-03-29 2002-03-29 Dispositivo de desenrollamiento de banda para rollos de banda.
DE60211299T DE60211299T2 (de) 2002-03-29 2002-03-29 Bahnabwickelvorrichtung für Bahnrollen
AT02425197T ATE325765T1 (de) 2002-03-29 2002-03-29 Bahnabwickelvorrichtung für bahnrollen
EP02425197A EP1348658B1 (fr) 2002-03-29 2002-03-29 Dispositif de déroulement de bande pour des rouleaux de bandes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425197A EP1348658B1 (fr) 2002-03-29 2002-03-29 Dispositif de déroulement de bande pour des rouleaux de bandes

Publications (2)

Publication Number Publication Date
EP1348658A1 EP1348658A1 (fr) 2003-10-01
EP1348658B1 true EP1348658B1 (fr) 2006-05-10

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EP02425197A Expired - Lifetime EP1348658B1 (fr) 2002-03-29 2002-03-29 Dispositif de déroulement de bande pour des rouleaux de bandes

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EP (1) EP1348658B1 (fr)
AT (1) ATE325765T1 (fr)
DE (1) DE60211299T2 (fr)
ES (1) ES2261624T3 (fr)

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Publication number Priority date Publication date Assignee Title
ES2323699T3 (es) * 2004-06-18 2009-07-23 Fosber S.P.A. Dispositivo de empalme para unir juntos dos materiales en banda, y dispositivo desenrollador que comprende dicho dispositivo de empalme.
EP1647508A1 (fr) * 2004-10-12 2006-04-19 Fosber S.P.A. Procédé et dispositif de déroulement de bobines de matière en bande et dispositif de levage des bobines
ITMI20052208A1 (it) * 2005-11-18 2007-05-19 Percivalle Special Converting Dispositivo di sostituzione di bobine su una unita' di avvolgimento o svolgimento
IT1392887B1 (it) 2009-02-24 2012-04-02 Fosber Spa Impianto per la produzione di cartone ondulato
CN108706365A (zh) * 2018-03-28 2018-10-26 河南省新斗彩印刷有限公司 悬挂式原纸架
IT201900013419A1 (it) 2019-07-31 2021-01-31 Guangdong Fosber Intelligent Equipment Co Ltd Svolgitore per bobine di carta e simili
WO2021214615A1 (fr) * 2020-04-24 2021-10-28 Lohia Corp Limited Appareil et procédé de changement de rouleaux de tissu à dérouler
CN112678584A (zh) * 2020-12-14 2021-04-20 桐乡市宜尔纺织股份有限公司 一种复合机
DE102020007715A1 (de) * 2020-12-17 2022-06-23 Windmöller & Hölscher Kg Lasttraverse, Fertigungszelle, Fertigungsumgebung und Verfahren

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Publication number Priority date Publication date Assignee Title
US4735372A (en) * 1987-02-18 1988-04-05 Mitsubiski Jukogyo Kabushiki Kaisha Rolled web feed apparatus
GB2209328B (en) * 1987-09-03 1991-09-25 Isowa Industry Co Cardboard web feeding device for corrugator.
JP2548958B2 (ja) * 1987-11-11 1996-10-30 株式会社イソワ コルゲートマシンの原紙供給装置

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Publication number Publication date
EP1348658A1 (fr) 2003-10-01
DE60211299T2 (de) 2007-05-24
DE60211299D1 (de) 2006-06-14
ES2261624T3 (es) 2006-11-16
ATE325765T1 (de) 2006-06-15

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