EP1245354A1 - Dispositif pour le positionnement d'outils de coupe, système de coupe comprenant un tel dispositif ainsi que rebobineuse ayant un tel système de coupe - Google Patents

Dispositif pour le positionnement d'outils de coupe, système de coupe comprenant un tel dispositif ainsi que rebobineuse ayant un tel système de coupe Download PDF

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Publication number
EP1245354A1
EP1245354A1 EP01830207A EP01830207A EP1245354A1 EP 1245354 A1 EP1245354 A1 EP 1245354A1 EP 01830207 A EP01830207 A EP 01830207A EP 01830207 A EP01830207 A EP 01830207A EP 1245354 A1 EP1245354 A1 EP 1245354A1
Authority
EP
European Patent Office
Prior art keywords
cutting
positioning
tools
cutting tools
jaws
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
EP01830207A
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German (de)
English (en)
Other versions
EP1245354B1 (fr
Inventor
Giuseppe Acciari
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.)
A Celli Nonwovens SpA
Original Assignee
A Celli SpA
Celli 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 A Celli SpA, Celli SpA filed Critical A Celli SpA
Priority to AT01830207T priority Critical patent/ATE287322T1/de
Priority to ES01830207T priority patent/ES2234796T3/es
Priority to DE60108474T priority patent/DE60108474T2/de
Priority to EP01830207A priority patent/EP1245354B1/fr
Priority to DK01830207T priority patent/DK1245354T3/da
Publication of EP1245354A1 publication Critical patent/EP1245354A1/fr
Application granted granted Critical
Publication of EP1245354B1 publication Critical patent/EP1245354B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D7/2628—Means for adjusting the position of the cutting member
    • B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
    • B26D2007/2657—Auxiliary carriages for moving the tool holders

Definitions

  • the present invention relates to a device for the positioning of one or more cutting tools intended for cutting a weblike material lengthwise into a plurality of strips having a width less than the width of said weblike material.
  • the invention also relates to a cutting assembly comprising one or more cutting tools and a positioning device of the abovementioned type.
  • the invention further relates to a rewinder which comprises a cutting assembly and a positioning device of the abovementioned type for winding up a weblike material onto a plurality of rolls following division of the weblike material into strips having a width less than the width of the initial weblike material, which is fed from a reel.
  • cutting assemblies comprising at least one series of disk-shaped tools, in particular in the form of circular blades. Normally, a first series of disk-shaped blades and a second series of disk-shaped counterblades are provided, although alternative solutions are also possible in which the disk-shaped blades interact with other counterpart systems.
  • the position of the cutting tools is set each time as a function of the dimensions of the rolls that it is desired to produce.
  • the positioning has to be accurate and automatic.
  • systems for reading the position of the tools are currently used, which systems make use of optical sensors. These reading systems present certain problems deriving primarily from the need to undertake frequent cleaning operations of the sensors in order to remove the dust which otherwise prevents the correct functioning of the sensors.
  • EP-A-0 081 840 discloses a rewinder comprising a cutting assembly for dividing the incoming weblike material into a plurality of strips intended to form the various rolls in the winding-up zone.
  • EP-B-0 347 060 and EP-B-0 499 340 disclose positioning devices for cutting tools that can be used in machines for the lengthwise cutting of a continuous weblike material, as for example in a rewinder.
  • the blades for cutting the weblike material are carried by a plurality of carriages that are movable in translation along positioning guides.
  • a continuous belt having two strands parallel to the positioning guides is driven by a positioning actuator.
  • each carriage can be temporarily linked to the belt and drawn into the desired position.
  • the system is complex and not particularly reliable or precise.
  • GB-A-2 290 496 discloses a different positioning device for the tools for cutting a weblike material.
  • This device comprises an optical (laser) detector for identifying the position of the cutting edge of each tool and a gripping member for gripping the individual tools which grasps the tools at the cutting edge.
  • the system is bulky and may cause damage to the cutting edge of the tools.
  • the system for reading the position of the tools is not reliable, especially when it is operating in dusty environments, which production plants for paper, fabric and nonwoven materials typically are. It is an object of the present invention to provide a positioning device for the cutting tools which overcomes the disadvantages of the conventional devices and which, in particular, allows accurate and precise positioning of the cutting tools.
  • the pair of jaws may be associated with a detector for detecting that gripping of said gripping appendage has taken place.
  • This detector may be a microswitch presented on the gripping surface of one of the jaws.
  • the pair of jaws to be able to move in a direction transverse to the positioning direction of the tools.
  • the senor For reliable reading of the position of the tools that is not sensitive to any dusts or other detritus, it is advantageous to provide for the sensor to be a magnetic rather than optical sensor.
  • Fig. 1 shows, generally and diagrammatically, a rewinder 1 comprising a pair of winding rollers 3,5 on which a series of mutually coaxial rolls R is formed.
  • the rolls R are formed from strips of weblike material obtained by the lengthwise cutting of a single weblike material N coming from a parent reel, unwinding within an unwinder, illustrated diagrammatically and of a type known per se.
  • a cutting assembly is provided, generally designated 9 and comprising a series of mutually coaxial disk-shaped cutting blades 11 aligned along an axis A (see in particular Fig. 2).
  • a single blade is visible in the drawing, but it is necessary to understand that, along the axis A, a plurality of blades are provided in a number sufficient to cut the weblike material N into the desired number of strips required at a given time.
  • Each blade is carried by a support 13.
  • the complex formed by the support 13 and by the disk-shaped blade 11 will be generally designated a cutting tool.
  • Each support 13 slides along guides 15 parallel to the axis A and orthogonal to the direction of advance of the weblike material N and of the strips S into which the latter is divided by the cutting assembly 9. In this manner, each support may be brought to the point at which it is desired to perform the lengthwise cutting of the weblike material N.
  • the positioning of each cutting tool 11, 13 is achieved by means of a positioning device generally designated 17, and the locking of the cutting tools in the desired position is achieved in a manner known per se, which will be described hereinbelow with reference to the counterblades with which the disk-shaped blades 11 interact.
  • the cutting assembly 9 comprises, for each disk-shaped blade 11, a counterblade 21 carried by a respective support 23.
  • a single counterblade 21 can be seen in the figures but it must be understood that along the axis B (parallel to the axis A) a plurality of identical counterblades are provided.
  • the complex comprising counterblade 21 and support 23 constitutes a respective cutting tool by analogy with the components 11, 13.
  • Each support 23 can be positioned along guides 25 parallel to the axis B.
  • the reference 27 generally designates a positioning device, equivalent to the device 17, and which will be described in detail with reference to Figs. 3 to 5 and serves to position the cutting tools 21, 23 along the guides 25.
  • the positioning device 27 comprises a slide or carriage 29 which is movable in the direction of the arrow f29 along guides 31 parallel to the guides 25. The movement is controlled by a threaded bar 33 driven by an actuator 35.
  • a linear guide 37 along which slides a cursor 39 solidly fixed to a support 41 borne in an overhanging manner on said slide 29 by means of the interposition of the abovementioned linear guide.
  • a gripping member for the cutting tools 21, 23 comprising a pair of jaws 45, 47 movable in a direction orthogonal to the direction of movement of the slide 29.
  • the opening and closing movements of the jaws 45, 47 are designated by the arrows f45 and f47.
  • the opening and closing movements of the jaws are controlled by cylinder-and-piston actuators (not shown) situated below.
  • Each jaw 45, 47 possesses, on its gripping surface, a coating of a material having a high coefficient of friction, designated 45A and 47A respectively, for gripping onto an appendage 23A of the support 23.
  • a microswitch 49 is further associated with the jaw 45, passing through the coating 45A and being presented on the gripping surface of said jaw to interact with the appendage 23A.
  • the microswitch 49 constitutes a gripping detector, which serves to detect when gripping of the cutting tool by the pair of jaws 45, 47 has taken place.
  • the support 41 bears, moreover, a plate 51 on which is mounted a magnetic sensor 53 which serves to read the position of the tools 21, 23 in the manner described below.
  • the magnetic sensor 53 interacts with permanent magnets accommodated in the appendage 23A of each cutting tool 21, 23, designated 54 in the case of the tool shown in Figs. 3 and 4.
  • brackets 55 and 57 are also solidly fixed to the support 41.
  • the bracket 55 interacts with a zero sensor 59, i.e. a sensor that allows the control unit that controls the entire rewinder (and is generally designated 2 in Fig. 1) to determine the starting point for the movement of the device 27 and therefore the position of the tools relative to the zero reference.
  • a zero sensor 59 i.e. a sensor that allows the control unit that controls the entire rewinder (and is generally designated 2 in Fig. 1) to determine the starting point for the movement of the device 27 and therefore the position of the tools relative to the zero reference.
  • Fixed to the bracket 57 is the end of a flexible pipe 60 which accommodates the cables and lines for supplying the various members borne by the support 41.
  • the locking system comprises, on each side of the appendages 23A of the various tools 21, 23, a profiled section 63 forming a seating 63A into which are inserted a cursor 65 and an air chamber 67.
  • the inflation of the air chambers 67 in the two seatings 63A of the two profiled sections 63 thrusts the respective cursors 65 against the flanks of the aligned appendages 23A of the various cutting tools 21, 23 to cause the locking thereof in the desired position.
  • the slide 29 together with the support 41 is brought into the zero position, identified by the zero sensor 59.
  • the slide 29 and the support 41 are moved in translation over the whole transverse extent of the rewinding machine.
  • An encoder associated with the threaded bar 33 and diagrammatically represented at 35A enables the central unit 2 to know the position of the slide 29 and hence of the support 41 and of the magnetic sensor 53. When this moves into alignment with the various cutting tools 21, 23 it identifies their position by detecting the presence of the respective permanent magnets 54. In this manner, a single stroke of the slide 27 enables the central unit 2 to determine the current positions of all of the cutting tools 21, 23.
  • the slide 27 and the support 41 associated therewith are moved in translation into alignment with the position of the cutting tools that have to be displaced.
  • the locking system 61 is opened, so as to permit the movement in translation of the tools along the guides 25.
  • the slide 27 is brought into a position such as to align the jaws 45, 47 (which are in the opened position, in other words extended) with the appendage 23A of the tool 21, 23 that has to be moved.
  • This position is identified by the central unit 2 on the basis of the reading of the position of the individual tools taken during a preceding phase, in the manner described. Said position of alignment having been reached, the jaws are tightened to clamp the appendage 23A.
  • the positioning device 17 for the cutting tools 11, 13 is produced and operates substantially in the same manner as has been described for the positioning device 27. In this way, both the cutting blades 11 and the counterblades 21 can be precisely positioned.
  • the possibility is not excluded that the cutting blades 11 interact, for example, with a grooved counterpart surface, a counterpart channel or other suitable counterpart means. Depending on the configuration of the counterpart means it might be necessary to position them or counterpart means might be used that do not require positioning. In the former case it is possible to adopt (as in the example described) two positioning devices, while in the latter case a single positioning system will be adopted.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Details Of Cutting Devices (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
EP01830207A 2001-03-26 2001-03-26 Dispositif pour le positionnement d'outils de coupe, système de coupe comprenant un tel dispositif ainsi que rebobineuse ayant un tel système de coupe Expired - Lifetime EP1245354B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT01830207T ATE287322T1 (de) 2001-03-26 2001-03-26 Vorrichtung zur verstellung von schneidwerzeugen, schneideanlage mit einer solchen vorrichtung sowie umspuler mit einer solchen schneideanlage
ES01830207T ES2234796T3 (es) 2001-03-26 2001-03-26 Un dispositivo para posicionar herramientas de corte, conjunto de corte que contiene un dispositivo de esta indole y rebobinador que comprende dicho conjunto.
DE60108474T DE60108474T2 (de) 2001-03-26 2001-03-26 Vorrichtung zur Verstellung von Schneidwerzeugen, Schneideanlage mit einer solchen Vorrichtung sowie Umspuler mit einer solchen Schneideanlage
EP01830207A EP1245354B1 (fr) 2001-03-26 2001-03-26 Dispositif pour le positionnement d'outils de coupe, système de coupe comprenant un tel dispositif ainsi que rebobineuse ayant un tel système de coupe
DK01830207T DK1245354T3 (da) 2001-03-26 2001-03-26 Indretning til positionering af skæreværktöjer, skæreenhed indeholdende en sådan indretning og oprulleindretning omfattende enheden

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01830207A EP1245354B1 (fr) 2001-03-26 2001-03-26 Dispositif pour le positionnement d'outils de coupe, système de coupe comprenant un tel dispositif ainsi que rebobineuse ayant un tel système de coupe

Publications (2)

Publication Number Publication Date
EP1245354A1 true EP1245354A1 (fr) 2002-10-02
EP1245354B1 EP1245354B1 (fr) 2005-01-19

Family

ID=8184462

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01830207A Expired - Lifetime EP1245354B1 (fr) 2001-03-26 2001-03-26 Dispositif pour le positionnement d'outils de coupe, système de coupe comprenant un tel dispositif ainsi que rebobineuse ayant un tel système de coupe

Country Status (5)

Country Link
EP (1) EP1245354B1 (fr)
AT (1) ATE287322T1 (fr)
DE (1) DE60108474T2 (fr)
DK (1) DK1245354T3 (fr)
ES (1) ES2234796T3 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1972401A2 (fr) 2007-03-21 2008-09-24 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Dispositif de coupe de bandes, de tôles ou analogues et procédé de détermination et/ou de calibrage de l'intervalle de coupe dans un tel dispositif
US8353662B2 (en) 2006-07-17 2013-01-15 A. Celli Nonwovens S.P.A. Robot for handling rolls
EP2815859A1 (fr) * 2013-06-19 2014-12-24 Valmet Technologies, Inc. Agencement de positionnement de refente d'une unité refendeuse-enrouleuse d'une ligne de production de bande de fibre
IT201800009482A1 (it) 2018-10-16 2020-04-16 Italia Tech Alliance Srl Macchina di avvolgimento con dispositivi per il calcolo del coefficiente di poisson e metodo
WO2020079576A1 (fr) * 2018-10-16 2020-04-23 Italia Technology Alliance S.R.L. Machine d'enroulement ayant un système d'évaluation du matériau en bande en cours de traitement et procédé
US12030736B2 (en) 2018-10-08 2024-07-09 A. Celli Paper S.P.A. Rewinding machine and method for controlling the speed of the motors in a rewinding machine

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB948047A (en) * 1961-06-02 1964-01-29 Beloit Eastern Corp Improvements in or relating to web slitting
US4033217A (en) * 1976-01-13 1977-07-05 S&S Corrugated Paper Machinery Co., Inc. Slitter having carrier for selective adjustment of a plurality of heads
US4548105A (en) * 1983-03-01 1985-10-22 Oy Wartsila Ab Method and arrangement for observing a position
US5259255A (en) * 1989-11-17 1993-11-09 Jagenberg Aktiengesellschaft Apparatus for positioning devices for operating upon sheets or webs
GB2290496A (en) * 1994-06-22 1996-01-03 Dienes Werke Positioning device for blades on cutting machines
EP0770460A2 (fr) * 1995-10-27 1997-05-02 Tidland Corporation Dispositif de positionnement motorisé pour outils
EP0933617A1 (fr) * 1998-01-29 1999-08-04 CSEM Centre Suisse d'Electronique et de Microtechnique S.A. - Recherche et Développement Capteur magnétique inductif avec optimisation des matériaux de la cible
DE19904182A1 (de) * 1999-02-03 2000-08-10 Bilstein Spezialfab Wilhelm Einrichtung zum Längsteilen von Materialbahnen mit Positioniereinrichtung für die Messerhalter

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB948047A (en) * 1961-06-02 1964-01-29 Beloit Eastern Corp Improvements in or relating to web slitting
US4033217A (en) * 1976-01-13 1977-07-05 S&S Corrugated Paper Machinery Co., Inc. Slitter having carrier for selective adjustment of a plurality of heads
US4548105A (en) * 1983-03-01 1985-10-22 Oy Wartsila Ab Method and arrangement for observing a position
US5259255A (en) * 1989-11-17 1993-11-09 Jagenberg Aktiengesellschaft Apparatus for positioning devices for operating upon sheets or webs
GB2290496A (en) * 1994-06-22 1996-01-03 Dienes Werke Positioning device for blades on cutting machines
EP0770460A2 (fr) * 1995-10-27 1997-05-02 Tidland Corporation Dispositif de positionnement motorisé pour outils
EP0933617A1 (fr) * 1998-01-29 1999-08-04 CSEM Centre Suisse d'Electronique et de Microtechnique S.A. - Recherche et Développement Capteur magnétique inductif avec optimisation des matériaux de la cible
DE19904182A1 (de) * 1999-02-03 2000-08-10 Bilstein Spezialfab Wilhelm Einrichtung zum Längsteilen von Materialbahnen mit Positioniereinrichtung für die Messerhalter

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8353662B2 (en) 2006-07-17 2013-01-15 A. Celli Nonwovens S.P.A. Robot for handling rolls
US8413407B2 (en) 2006-07-17 2013-04-09 A. Celli Nonwovens S.P.A. Automated system for producing and managing rolls of web material
EP1972401A2 (fr) 2007-03-21 2008-09-24 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Dispositif de coupe de bandes, de tôles ou analogues et procédé de détermination et/ou de calibrage de l'intervalle de coupe dans un tel dispositif
EP1972401A3 (fr) * 2007-03-21 2009-08-05 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Dispositif de coupe de bandes, de tôles ou analogues et procédé de détermination et/ou de calibrage de l'intervalle de coupe dans un tel dispositif
CN101274377B (zh) * 2007-03-21 2011-10-12 矿山机械和轧钢机械制造有限公司 切割带材等的装置和其中确定和/或校准切割缝隙的方法
EP2815859A1 (fr) * 2013-06-19 2014-12-24 Valmet Technologies, Inc. Agencement de positionnement de refente d'une unité refendeuse-enrouleuse d'une ligne de production de bande de fibre
US12030736B2 (en) 2018-10-08 2024-07-09 A. Celli Paper S.P.A. Rewinding machine and method for controlling the speed of the motors in a rewinding machine
IT201800009482A1 (it) 2018-10-16 2020-04-16 Italia Tech Alliance Srl Macchina di avvolgimento con dispositivi per il calcolo del coefficiente di poisson e metodo
WO2020078957A1 (fr) 2018-10-16 2020-04-23 Italia Technology Alliance S.R.L. Enrouleuse avec dispositif pour calculer le coefficient de poisson et procédé associé
WO2020079576A1 (fr) * 2018-10-16 2020-04-23 Italia Technology Alliance S.R.L. Machine d'enroulement ayant un système d'évaluation du matériau en bande en cours de traitement et procédé
US11890772B2 (en) 2018-10-16 2024-02-06 Italia Technology Alliance S.R.L. Winding machine with device for calculating the poisson's ratio and related method

Also Published As

Publication number Publication date
DK1245354T3 (da) 2005-03-14
DE60108474T2 (de) 2006-03-23
ATE287322T1 (de) 2005-02-15
ES2234796T3 (es) 2005-07-01
EP1245354B1 (fr) 2005-01-19
DE60108474D1 (de) 2005-02-24

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