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WO2007096918A1 - Machine de production de bobines à l'aide d'un système de coupe installé en amont de l'enrouleur - Google Patents

Machine de production de bobines à l'aide d'un système de coupe installé en amont de l'enrouleur Download PDF

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Publication number
WO2007096918A1
WO2007096918A1 PCT/IT2006/000111 IT2006000111W WO2007096918A1 WO 2007096918 A1 WO2007096918 A1 WO 2007096918A1 IT 2006000111 W IT2006000111 W IT 2006000111W WO 2007096918 A1 WO2007096918 A1 WO 2007096918A1
Authority
WO
WIPO (PCT)
Prior art keywords
winding
weblike material
reel
rod
weblike
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.)
Ceased
Application number
PCT/IT2006/000111
Other languages
English (en)
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 Nonwovens 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 Nonwovens SpA filed Critical A Celli Nonwovens SpA
Priority to PCT/IT2006/000111 priority Critical patent/WO2007096918A1/fr
Publication of WO2007096918A1 publication Critical patent/WO2007096918A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B65H19/265—Cutting-off the web running to the wound web roll using a cutting member moving linearly in a plane parallel to the surface of the web and along a direction crossing the web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5153—Details of cutting means
    • B65H2301/51534—Water jet

Definitions

  • the present invention relates to improvements to machines for the production of reels of weblike material, for example non-woven fabric, paper or the like, around winding rods.
  • the invention also relates to improvements to a method for the production of reels of weblike material wound on winding rods.
  • a weblike material that is frequently wound in reels, which are to undergo subsequent processes of transformation into semi-finished and finished products is non-woven fabric, which is used in many fields, in particular but not exclusively, in the field of production of hygienic and sanitary articles, such as nappies for babies, sanitary pads for incontinency, pantie liners for women, and similar products, or in the field of production of napkins, tablecloths, sheets, or also garments of clothing and other products, as well as in the field of production of filters, and other technical articles.
  • the reels wound on winding rods are frequently unwound and rewound in rolls of smaller axial and/or diametral dimensions, and then undergo further transformation to obtain the finished articles.
  • a reeling machine also referred to as "reeler”
  • the weblike material is run over a winding member, typically a winding roller, against which the reel is pressed in the step of formation around a winding rod or shaft.
  • the reel is kept in rotation as a result of the tangential force applied peripherally thereon by the winding roller.
  • the rod on which the reel is formed rests on rolling guides and is held against the winding roller via adequate supports.
  • the above machines have a pair of supports that engage the ends of the winding rod in order to exert pressure upon the reel being formed, to press it against the winding roller.
  • the gradual growth of the diameter of the reel causes recession of the supports from the winding roller.
  • the reel is released, and the supports again translate into a position adjacent to the winding roller, to receive a new rod that is introduced by an inserting member that picks it up from a magazine normally overlying the winding roller.
  • An object of the present invention is to provide a reeling machine or reeler which will overcome either totally or in part the drawbacks of traditional machines, and in particular will render more efficient the step of cutting of the weblike material at the end of winding of a reel, to enable start of winding of the next reel.
  • the invention relates to a machine for winding a weblike material on winding rods and forming reels of weblike material, said machine including: a path for the weblike material; a winding member, around which said weblike material is guided; an inserting member for inserting winding rods into a position of winding adjacent to said winding member; and a device for cutting said weblike material at the end of winding of each reel.
  • the cutting device is positioned along the path of the weblike material for acting on the weblike material upstream of the winding member, with respect to the direction of feed of the weblike material along said path, in order to carry out cutting of the weblike material in a position set preferably before the weblike material comes into contact with the winding member.
  • the cutting device is arranged and controlled for cutting the weblike material along a slanted line not orthogonal to the longitudinal edges of said weblike material.
  • the winding member, the inserting member, and the cutting device are arranged and controlled in such a way that at the end of winding of each reel the cutting device generates a trailing end and a leading end such that the leading end starts to wind onto a new winding rod before the weblike material has been completely interrupted.
  • the cutting device comprises a water nozzle.
  • other cutting members for example a laser cutting system, or else a mechanical cutting system, preferably, in any case, a cutting system designed for carrying out a slanted cut.
  • the invention regards a machine for winding a weblike material on winding rods and forming reels of weblike material, said machine comprising: a winding member; an inserting member for inserting rods; and a cutting device that is arranged and controlled for generating on said weblike material a slanted line of cut that is not orthogonal to the longitudinal edges of the weblike material, said line separating a leading end from a trailing end.
  • the invention regards a method for winding a weblike material in reels, said method including the steps of: feeding the weblike material along a feed path and around a winding member; winding the weblike material around a first winding rod to form a first reel, said first reel that is being formed being kept in contact with said winding member; and at the end of winding of said first reel, interrupting the weblike material to form a trailing end that finishes winding onto said first reel, and a leading end that starts winding to form a second reel around a second winding rod; characterized in that the weblike material is cut upstream of the winding member with respect to the direction of feed of the weblike material along said path.
  • the invention relates to a method for winding a weblike material in reels, comprising the steps of feeding the weblike material along a feed path and winding the weblike material around winding rods to form said reels.
  • the method envisages: forming, at the end of winding of each reel, a trailing end and a leading end, which have a slanted development that is not orthogonal to the longitudinal edges of the weblike material; and starting to wind the weblike material on a second rod before the trailing end and the leading end have been completely separated from one another.
  • the invention also relates to a machine for the production of reels of wound weblike material, with a winding member, a member for separating the weblike material at the end of winding of each reel, and a system for sequential insertion of winding rods so that they come into contact with said winding member, in which the system for sequential insertion of the winding rods and the separating member are arranged and controlled for separating a trailing end of the weblike material, which finishes winding on a first reel, from a leading end that starts to wind around a second winding rod inserted up against the winding member by the system for sequential insertion, to start the formation of a second reel, and in which the insertion system is controlled to bring the second winding rod into contact with the weblike material, prior to complete separation of the trailing end from the leading end of the weblike material.
  • the invention also envisages a method for winding a weblike material in reels, in which, at the end of winding of a first reel around a first winding rod, a trailing end that finishes winding on the first reel is separated from a leading end that starts to wind around a second winding rod to start the formation of a second reel, and in which the second winding rod is brought into contact with said weblike material, prior to complete separation of said trailing flap from said leading end.
  • Figure 1 is a perspective view of the machine in one embodiment
  • Figure 1A is an enlarged detail of Figure 1 in the area of introduction of the winding rods
  • Figure 1 B is an enlarged detail of Figure 1 in the area of one of the supports of the winding rods;
  • Figure 1C is an enlarged detail of another of the supports of the winding rods
  • Figure 2 is an axonometric view of a winding rod
  • Figure 2A is an enlarged detail of one end of the rod of Figure 2;
  • Figure 3 is an axonometric representation of the cutting device isolated from the remaining parts of the machine;
  • Figure 3A is an enlarged detail of Figure 3;
  • Figure 4 is a median section along a vertical plane of the area for winding, cutting of the weblike material, and introduction of the winding cores;
  • Figures 5A, 5B, 5C show a schematic operative sequence of the operating cycle; and Figure 6 is a schematic representation of the form of the cutting line made on the weblike material. Detailed description of a preferred embodiment of the invention
  • FIG. 1 shows, as a whole, a machine which implements the invention, it being understood that the principles underlying the invention can be implemented and incorporated also in machines different from the one illustrated.
  • the machine is designated as a whole by the reference number 1 and has a load-bearing structure 3 to which two mutually parallel sides 5 are fixed, which define, at the top, guides 5A for resting and rolling of winding rods A. These rods are arranged in a magazine defined in the top part of the machine and are inserted in sequence one after the other into a winding area, as described in what follows.
  • a pair of oscillating arms 7 is provided, which are controlled by a cylinder-piston actuator 9.
  • the arms 7 pick up the winding rods A one by one and deposit them on pairs of supports described in greater detail in what follows, associated to the sides 5.
  • the arms 7 are shaped in such a way that a perimetral portion 7A thereof withholds the rods subsequent to the one that each time is picked up by the pair of arms 7, in order to start winding a new reel of weblike material around it.
  • the machine has a winding member that, in a preferred embodiment, is formed by a winding roller 11 with an axis of rotation 11A ( Figure 1A) parallel to the axis of oscillation of the arms 7 and to the axis of the rods A.
  • each winding rod A has a body with a main cylindrical portion A1 , at the ends of which shanks C1 and C2 are connected, which are coaxial to the main cylindrical portion A1.
  • Adjacent to the ends AX and AY of the portion A1 of the rod are annular portions P equipped with a coating constituted preferably by asperities formed by pins or needles made of metal, plastics or other material of suitable strength and stiffness, which have (as will emerge more clearly from what follows) the purpose of engaging the initial portion of the leading edge of the weblike material and causing it to adhere to the cylindrical surface of the rod A to start winding of each reel.
  • gears R1 and R2 which have the function of meshing with gears with which the supports of the winding rods are equipped, as will be clarified later on, in order to impart a movement of rotation upon the rods A about their axis when these are supported by the supports 2OA and 2OB or 21 A and 21 B in the position of maximum height (already referred to as engagement height) awaiting rod change (Figure 5A) in order to bestow on said rods the same peripheral velocity as that of the winding roller 11.
  • each shank C1 , C2 moreover forms an element for resting on the guides 5A, which are formed by the sides 5, and has a conformation such as to engage the respective guide 5A, preventing the rod from translating parallel to its own axis during rolling along the guides 5A.
  • each shank C1 , C2 is shaped for co-operating with the arms 7 and with the supports of the machine.
  • the shanks C1 , C2 have a first annular seat S1 and a second annular seat S2 for co-operating with the supports of the machine.
  • each rod will be engaged by a pair of supports in a position corresponding to the two seats S1 , or else to the two seats S2.
  • the seats S1 , S2 are arranged on the two shanks C1 , C2 in such a way that the two annular seats S1 have the same distance from one another as the seats S2, said distance being designated by d in Figure 2.
  • each shank C1 , C2 has an annular groove SA that is designed to co-operate with the respective resting and rolling guide 5A of the respective side 5.
  • each shank C1 , C2 has a further annular groove SB for engagement by the two oscillating arms 7.
  • the references 2OA, 2OB and 21 A, 21 B designate four supports for the winding rods, arranged in pairs, the supports 2OA, 2OB forming a first pair of supports for a first rod, and the supports 21 A, 21 B forming a second pair of supports for a second winding rod A.
  • the supports 2OA and 21A are arranged within the respective sides 5, whilst the supports 2OB and 21 B are arranged on the outside of the respective sides.
  • Each of the supports 2OA, 2OB is set on a respective carriage 23, said carriages being substantially symmetrical and only one of them will be described in greater detail in what follows with reference to Figure 1 B.
  • the supports 2OB and 21 B are arranged, instead, on carriages 25, which also are substantially symmetrical and only one of them will be described with reference to Figure 1C.
  • This figure in particular illustrates in isolation and in a partially exploded view the carriage 25 on which the support 2OB is mounted.
  • the carriage represented in Figure 1C is viewed from the side opposite to the one visible in Figure 1 ; i.e., it is viewed in the direction of the arrow F.
  • Each carriage 23 ( Figure 1B) is able to slide along guides 27 fixed to the respective side 5. Said guides 27 are arranged on the internal face of the two sides 5.
  • the carriage 23 is mobile along the guides 27 in the direction of the double-headed arrow f23.
  • the movement is controlled alternately by two different mechanisms.
  • the movement from the position furthest away from the winding roller 11 to the position of the roller itself (namely, the position in which the carriage 23 that holds the support 21A is located, in the view of Figure 1) is driven by a belt 29, to which the carriage is constrained, by means of an actuator (not illustrated), which drives one of the pulleys over which the belt 29 is run.
  • the movement in the opposite direction i.e., in the direction of recession away from the winding roller 11 , is obtained as a result of the gradual growth of a reel around the winding rod that is temporarily engaged to the respective support 2OA or 21 A and in contact with the winding roller 11.
  • the reference number 31 designates a cylinder-rodless piston actuator, which pushes the carriage 23 towards the roller 11 in such a way that the reel, in the step of formation around the rod held by the support 21A or 21 B, is pressed against the winding roller 11 to enable the latter to carry out winding, transmitting the motion of rotation to the reel.
  • Set on the carriage 23 is a slide 33, which is vertically mobile in the direction of the double-headed arrow f33.
  • the vertical movement according to f33 is controlled by a servo motor 35 through a belt 37, which transmits the motion to a pulley 39 of a linear actuator 41 , which has a bar 43 that can be extracted and retracted to cause the displacements according to f33 of the slide 33.
  • Constrained to the rod 43 is a cylinder-piston actuator 45, of which designated by the reference number 47 is the rod hinged to the support 21A or 21 B.
  • the configuration of the carriage 25 that carries one or the other of the supports 20B 1 21 B is substantially equivalent to that of the carriage 23, as may be noted in the representation of Figure 1C, where one of the carriages 25 is illustrated in isolation with respect to the side 5 that supports it.
  • the reference 25A designates the slides that guide the carriage 25 on guides 51 fixed to the respective side 5 and equivalent to the guides 27.
  • Set on the carriage 25 is a slide 53, which is vertically mobile in the direction indicated by the arrow f53, the movement of which is controlled by a linear actuator 55 driven by a servo motor 57 by means of a belt 59 and a pulley 61.
  • the reference number 63 designates the extractable and retractable bar of the linear actuator 55, which is constrained at the top by a cylinder-piston actuator 65 equivalent to the cylinder-piston actuator 45 of the carriage 23.
  • the rod 67 of the cylinder-piston actuator 65 is constrained to the support 2OB or else 2OA. Up to this point the structure of the carriage 25 is substantially the same as that of the carriage 23.
  • an electric motor 71 at the output of which, by means of a joint 73, there is connected a reduction gear 75 ( Figure 1C).
  • This arrangement supplies motion to a respective gear 77 that is to mesh with the corresponding gear R1 or else R2 of the rod that is temporarily supported by one or by the other of the supports 2OA, 2OB.
  • the motor 71 thus provides the movement of rotation for the auxiliary operations on the winding rod A when this is not driven in rotation by the winding roller 11.
  • a cutting device located along the path of the weblike material N, upstream of the winding roller 11 is a cutting device designated as a whole by 91 and illustrated in isolation in Figure 3 and in the enlarged detail of Figure 3A.
  • the cutting device 91 comprises a pressurized- water nozzle 93 carried by a slide 95 having a reciprocating rectilinear movement in the direction indicated by f93, orthogonal to the direction of feed of the weblike material N along the path of advance through the machine.
  • the movement of the slide 95 and of the nozzle 93 carried thereby is controlled by a cylinder-rod less piston actuator 97 supported by a beam 99.
  • a sliding surface 101 Located underneath the path of the nozzle 93, and on the side opposite thereto with respect to the path of the weblike material, is a sliding surface 101, along which the weblike material runs, said surface being interrupted by a groove 103, which is parallel to the path of the nozzle 93 and is located exactly underneath the latter.
  • Developing underneath this groove 103 are tanks 105 for collecting the water, which comes from the nozzle 93 and is ejected at a high pressure therefrom. In the tanks there may be arranged systems for extinguishing the kinetic energy of the jet of water.
  • the machine described so far operates according to the cycle illustrated hereinafter with reference to the sequence of Figures 5A-5C.
  • Figure 5A illustrates a step in which a reel BA of weblike material N is being formed on a first winding rod A.
  • the winding rod is supported by the first pair of supports 2OA, 2OB.
  • the cylinder-rod less piston actuators 31 , 81 push the carriages 23, 25 and hence the reel BA against the winding roller 11 so that rotation of the latter causes feed of the weblike material and rotation of the reel BA and of its winding rod and consequently winding of the material around the rod.
  • the supports 2OA, 2OB are displaced towards a position for unloading, which is located at the opposite ends of the guides 5A with respect to the position in which the winding roller 11 is located.
  • the weight of the rod and of the reel is for the most part supported by the rolling guides 5A.
  • FIG. 5B illustrates a further step, in which the reel BA being formed carried by the supports 2OA, 2OB is by now close to completion and hence very close to the area of unloading.
  • the supports 21 A, 21 B of the second pair of supports have been brought, via translation of the corresponding carriages 23, 25 driven by the belts 29, 79, into a position adjacent to the winding roller 11.
  • a new winding rod is unloaded by the oscillating arms 7 onto the pair of supports 21 A, 21 B, which for this purpose have been raised to an appropriate height.
  • the water nozzle 93 is activated and starts projecting a jet of water at high pressure.
  • the nozzle 93 is made to translate in a direction transverse to the direction of feed of the weblike material along the path of feed with a rate such as to cause formation of an initial or leading free end and of a final or trailing end in the weblike material N with an adequate shape (see Figure 6) where the letter T designates the cutting line, NA the trailing end of the portion of weblike material wound onto the reel BA, and NB the leading end of the weblike material which will be wound onto the next rod to form the reel BB.
  • the inclination of the cutting line T with respect to the direction of the machine, represented by the direction of feed fN of the weblike material, is such that the most advanced vertex V defined in the leading end NB comes into contact with the new rod, which has duly been lowered towards the winding roller 11 via retraction of the cylinder-piston actuators 45, 65, before the cutting T is completed.
  • the supports 21 A, 21 B are then gradually lowered, so as to keep the rod A (onto which the product is being wound) always in contact with the winding roller 11 , whilst the reel BB starts to grow in diameter until the shanks of the new winding rod rest on the resting and rolling guides 5A.
  • the supports 21 A, 21 B will then be further lowered in order to free the rod with the reel wound thereon, thus enabling it to be unloaded and allowing the supports to translate once again towards the area in which the winding roller is located.
  • the shanks C1 , C2 of the rods each have two distinct annular seats S1 , S2 for co-operating with the supports 21A, 21 B and 2OA, 2OB, respectively.

Landscapes

  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne une machine définissant une trajectoire pour une bande de matériau (N) et comprenant un enrouleur (11) autour duquel est guidée ladite bande de matériau, un élément (7) d'insertion des cylindres (A) d'enroulement sur une position d'enroulement adjacente à l'enrouleur, et un dispositif (93) de coupe de ladite bande de matériau à l'extrémité d'enroulement de chaque bobine, le long de la trajectoire de la bande de matériau (N).
PCT/IT2006/000111 2006-02-27 2006-02-27 Machine de production de bobines à l'aide d'un système de coupe installé en amont de l'enrouleur Ceased WO2007096918A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IT2006/000111 WO2007096918A1 (fr) 2006-02-27 2006-02-27 Machine de production de bobines à l'aide d'un système de coupe installé en amont de l'enrouleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IT2006/000111 WO2007096918A1 (fr) 2006-02-27 2006-02-27 Machine de production de bobines à l'aide d'un système de coupe installé en amont de l'enrouleur

Publications (1)

Publication Number Publication Date
WO2007096918A1 true WO2007096918A1 (fr) 2007-08-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2006/000111 Ceased WO2007096918A1 (fr) 2006-02-27 2006-02-27 Machine de production de bobines à l'aide d'un système de coupe installé en amont de l'enrouleur

Country Status (1)

Country Link
WO (1) WO2007096918A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108928661A (zh) * 2017-05-24 2018-12-04 特吕茨施勒有限及两合公司 纤维网卷绕机的切割装置和其方法
EP3409817A1 (fr) * 2017-05-24 2018-12-05 Trützschler GmbH & Co. KG Dispositif de transport d'un noyau dans un dispositif denrouleur de nappe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992006913A1 (fr) * 1990-10-15 1992-04-30 Beloit Corporation Dispositif et procede d'enroulement d'une bande en deplacement continu sur un nouveau mandrin
EP0543788A1 (fr) * 1991-11-18 1993-05-26 Valmet Paper Machinery Inc. Méthode pour l'enroulement de bandes
CA2227113A1 (fr) * 1998-01-15 1999-07-15 Roman C. Caspar Appareil a jet d'eau pour revers pour utiliser dans un devidoir de tissu
WO2003010076A1 (fr) * 2001-07-26 2003-02-06 Caspar Roman C Procede d'enroulement de bande dans un enrouleur de bande et appareil correspondant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992006913A1 (fr) * 1990-10-15 1992-04-30 Beloit Corporation Dispositif et procede d'enroulement d'une bande en deplacement continu sur un nouveau mandrin
EP0543788A1 (fr) * 1991-11-18 1993-05-26 Valmet Paper Machinery Inc. Méthode pour l'enroulement de bandes
CA2227113A1 (fr) * 1998-01-15 1999-07-15 Roman C. Caspar Appareil a jet d'eau pour revers pour utiliser dans un devidoir de tissu
WO2003010076A1 (fr) * 2001-07-26 2003-02-06 Caspar Roman C Procede d'enroulement de bande dans un enrouleur de bande et appareil correspondant

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108928661A (zh) * 2017-05-24 2018-12-04 特吕茨施勒有限及两合公司 纤维网卷绕机的切割装置和其方法
EP3409818A1 (fr) * 2017-05-24 2018-12-05 Trützschler GmbH & Co. KG Dispositif de coupe pour un enrouleur de non-tissé et procédé correspondant
EP3409817A1 (fr) * 2017-05-24 2018-12-05 Trützschler GmbH & Co. KG Dispositif de transport d'un noyau dans un dispositif denrouleur de nappe
CN108946248A (zh) * 2017-05-24 2018-12-07 特吕茨施勒有限及两合公司 在纤维网卷绕机中输运卷绕轴的装置
CN108928661B (zh) * 2017-05-24 2020-10-02 特吕茨施勒有限及两合公司 纤维网卷绕机的切割装置和其方法
CN108946248B (zh) * 2017-05-24 2021-02-26 特吕茨施勒有限及两合公司 在纤维网卷绕机中输运卷绕轴的装置

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