WO2006048496A1 - Procede et appareil pour produire un noyau - Google Patents

Procede et appareil pour produire un noyau Download PDF

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Publication number
WO2006048496A1
WO2006048496A1 PCT/FI2005/000419 FI2005000419W WO2006048496A1 WO 2006048496 A1 WO2006048496 A1 WO 2006048496A1 FI 2005000419 W FI2005000419 W FI 2005000419W WO 2006048496 A1 WO2006048496 A1 WO 2006048496A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
machining
contact
shape
mating
Prior art date
Application number
PCT/FI2005/000419
Other languages
English (en)
Inventor
Matti Lammi
Original Assignee
Raumaster Paper Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33515182&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2006048496(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Raumaster Paper Oy filed Critical Raumaster Paper Oy
Publication of WO2006048496A1 publication Critical patent/WO2006048496A1/fr

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
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/50—Methods of making reels, bobbins, cop tubes, or the like by working an unspecified material, or several materials
    • B65H75/505—Working on cores, reels or the like to permit their reuse, e.g. correcting distortion, replacing parts of the core or reel

Definitions

  • the present invention relates to a method and an apparatus for producing a long core by joining shorter cores together one after the other.
  • cores are used for rolling paper, cardboard, plastic film, fabric or other material web around the core.
  • Patent specification FI 104 551 contains an analysis of the patent specifications mentioned below.
  • the present invention provides a solution that, besides being simple, is also universal.
  • the same apparatus can be used to join cores of several sizes together.
  • the in ⁇ vention enables the creation of an automated system.
  • the invention is characterized by what is disclosed in the characterization parts of the independent claims. The invention is described in more detail with reference to the attached drawings, wherein
  • Fig. 1 presents a schematic view of the system of the invention
  • Fig. 2 presents an embodiment of the apparatus of the invention in side view
  • Fig. 3 presents a partial cross-section of the apparatus illustrated ⁇ n Fig. 2, and
  • Fig. 4 presents two types of joint according to the invention.
  • Fig. 5 presents another embodiment of the invention.
  • Fig. 6 presents a set of equipment for dressing of the surface of a conjoined core tube.
  • Tubular blanks such as cores to be recycled, remnants left over in sawing operations and similar pieces are brought e.g. on a rack 2 into the system illustrated in Fig. 1. From the rack, the cores are moved to a conveyor system manually or in the manner known e.g. from the dragging devices of sawmills. In an actual system according to the invention, the operations listed below are carried out, preferably automatically, and in about the order and extent described in the following.
  • - Checking 3 the quality of the core preferably by using a machine vision device, e.g. a matrix camera, observing especially the shape of the ends and whether any paper web or other undesirable material remains sticking to the core 1.
  • a machine vision device e.g. a matrix camera
  • Sorting 4 whereby cores suitable for the process are separated from the unsuitable ones and passed on to the next stage. Possible treatment 6 of cores unsuitable for direct use in the process, by cleaning the core / re ⁇ moving the problematic portions. The suitable portion is passed on. Larger unsuitable portions are preferably removed by cutting, minor unsuitable portions can also be taken care of in connection with the machining of the mating shape by removing a larger amount of material.
  • the transfers of cores between process stations is implemented by prior-art techniques.
  • longitudinal transfers can be performed using belt conveyors placed on the bot ⁇ toms of the troughs and transverse transfers by tilting the troughs or using pushing devices or by corresponding methods.
  • the checking apparatuses 3,12 may consist of completely or partially identical equipment or they may be completely separate.
  • a preferable principle of checking the shape of the core is to compare the picture taken by the camera to a flawless model image. Paper and other material remaining on the envelope surface of the core can be detected by machine vision by measuring differences of intensity of light reflection or by other techniques known in themselves.
  • the cutting apparatuses 6,11 may consist of completely or partially identical equipment or they may be completely separate.
  • the system produces parent cores of a length of about eight - nine meters, but the conjoined core tubes can naturally also be cut to other lengths or precisioning of the length can be omitted.
  • Fig. 2 Depicted in Fig. 2 is an apparatus according to the invention for positioning and machining the end of a core 1.
  • the core 1 leans against a fixed centering element 17.
  • the other center ⁇ ing elements 18,19 are movable in a transverse direction relative to the core.
  • the apparatus preferably comprises at least three centering elements, which in the centering position are preferably placed with even spacing around the core 1.
  • the centering elements are prefera- bly cylindrical rolls.
  • the roll/core is rotated by a power means, which is not shown in the figure.
  • Placed on the same line with the core is a machining unit 25, which has a power means 21 to rotate a machining element 20.
  • the machining unit 25 moves on bearings 22 along guide bars 23 parallel to plane P in the direction of the axis of rotation of the core 1.
  • the machining unit 25 is in a fixed position and the core 1 is moved.
  • Fig. 3 shows the positions of the devices relative to the core 1 as seen from the direction of the core (sectioned).
  • the fixed centering element 17 and the core 1 are in linear contact with each other.
  • the contact area is called the line of contact.
  • An essential point regarding the invention is that this line of contact and the axis of rotation of the core 1 as well as the central axis of the machining element 20 are positioned in the same plane P during machining.
  • the machin ⁇ ing element 20 works the core from the side of the centering element. Therefore, the core 1 is rotated during machining through at least one revolution, and care is taken that the linear contact is continuously maintained. This is accomplished by a compressing grip exerted by the movable centering elements 18,19.
  • a pusher 31 as presented in Fig.
  • a contact element 26 preferably a pivotally mounted roller.
  • the line of mutual contact between the contact element 26 and the inner surface of the core also coincides with plane P during machining.
  • the contact element of the pusher 31 may also be held in a fixed position in the transverse direction of the core 1, in which case it is preferable to adjust the setting to a tight value. It is also possible to use rigid springing.
  • the most preferable way of ensuring maintenance of the linear contact is to use an arrangement where the contact element 26 is movable in plane P and the force of the power means 30, e.g. a pneumatic cylinder, producing the motion can be adjusted. In the motion mechanism, instead of a carriage 28 and a guide bar 29, it is also possible to use a prior-art link work.
  • Deviations in the shape of the end of the core 1 can be measured from a point right beside the joint, e.g. by measuring the motion of the contact element 26 by means of a detector 33 when the core 1 is rotating while leaning against the centering element 17 (Fig. 5).
  • the measuring detectors may also be so mounted that they will measure the profile of the core 1 by leaning directly against its surface, detector 31 leaning against the outer surface and detector 32 against the inner surface (Fig. 3).
  • the shape of the end of the core can naturally also be measured without contact.
  • the measuring technique is known in it ⁇ self. On the basis of the measuring results, it is possible to decide about how to proceed.
  • the core can be returned to the cutting stage 6. Minor deviations in shape can be corrected by means of the machining unit 25 by working the mating shape to a greater depth.
  • a preferable mating shape is a simple bevel, of e.g. 30-45 degrees.
  • the parts can be more easily pressed together during the joining operation if the angle is gentle. In this case there is a risk of pushing the halves beyond the allowed limit, with the result that the edge of the female half protrudes over the surface of the core. A ridge remaining on the core will cause track interruptions on the winder.
  • Fig. 4 presents mating shapes that do not involve the above-described disadvantage.
  • the shape of the cutter is a circle of radius R.
  • the magnitude of the radius R and the angular position of the cutter are so chosen that the contact profile combines a gentle guiding por ⁇ tion and a steep stopping portion.
  • the slope grows steeper towards the outer diameter of the core 1.
  • a circular cutter profile is preferable especially in respect of mainte ⁇ nance costs.
  • the machining of the female half can be carried out using a round cutter bit, from which it is possible to turn a new edge as the wear progresses. It is preferable to trun ⁇ cate the sharp tip of the bit by means of a separate cutter bit (not shown).
  • Fig. 6 presents an apparatus that can be used to eliminate an outward deviation of shape, such as the ridge at a glued joint, from the surface of the core tube by a technique known from pole dressing machines.
  • the core 1 is rotated on supporting rollers 34.
  • a preferably a cylindrical cutter unit 37 rotating on the opposite side is pressed against the rotating core so that the cutter unit leans against the core via limiting elements 35,36 preferably placed on either side of the joint line.
  • the limiting elements preferably consist of discs concentric and of the same diameter with the cutter.
  • the cutter unit is e.g. a cutter as known from woodworking machines. The most essential point is that the lines of contact of the cutter unit and the limiting elements with respect to the core are in the same plane.
  • the number, shape and placement of the centering elements may vary. They can move together or separately.
  • the operations can be performed in an order and to an extent differing from those in the above description.

Landscapes

  • Replacement Of Web Rolls (AREA)

Abstract

L'invention concerne un procédé et un appareil pour produire un long noyau en réunissant des noyaux plus courts les uns à la suite des autres. De tels noyaux sont utilisés pour enrouler du papier, du carton, du film plastique, du tissu ou d'autres matériaux en bande autour du noyau. Grâce à l'invention, il est possible d'utiliser des noyaux recyclables. Les solutions de l'art antérieur pour usiner la forme adaptée sont compliquées. La forme adaptée est usinée dans le noyau (1) depuis le côté d'un élément de centrage fixe (17) tandis que le noyau rotatif (1) est appuyé contre l'élément de centrage fixe (17) de sorte que, pendant l'usinage de la forme adaptée, aucun mouvement de la ligne de contact entre l'élément d'usinage (20) ou le noyau (1) et l'élément de centrage fixe (17) l'un par rapport à l'autre ne se produise dans une direction transversale à l'axe de rotation du noyau (1).
PCT/FI2005/000419 2004-11-02 2005-10-03 Procede et appareil pour produire un noyau WO2006048496A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20041405 2004-11-02
FI20041405A FI117008B (fi) 2004-11-02 2004-11-02 Menetelmä ja laitteisto hylsyn valmistamiseksi

Publications (1)

Publication Number Publication Date
WO2006048496A1 true WO2006048496A1 (fr) 2006-05-11

Family

ID=33515182

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2005/000419 WO2006048496A1 (fr) 2004-11-02 2005-10-03 Procede et appareil pour produire un noyau

Country Status (2)

Country Link
FI (1) FI117008B (fr)
WO (1) WO2006048496A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008023099A1 (fr) * 2006-08-23 2008-02-28 Core Handling Oy Ltd Procédé destiné à être utilisé dans la fabrication d'un noyau utilisé dans le centre de bobines de carton et de papier
WO2008114115A3 (fr) * 2007-03-16 2009-02-19 Ga Vo Meccanica S N C Appareil pour connecter des noyaux tubulaires
WO2024152134A1 (fr) * 2023-01-19 2024-07-25 Gallardo Angulo Juan Romualdo Machine à découper et à refendre de rouleaux de carton en vue de leur récupération

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994019271A1 (fr) * 1993-02-18 1994-09-01 Uno Johansson Procede de raccordement de sections de bobine et appareil pour sa mise en ×uvre
WO1995014631A1 (fr) * 1993-11-23 1995-06-01 Bergslagsteknik Ab Dispositif et procede de raccordement de manchons de carton
US5571541A (en) * 1993-12-07 1996-11-05 Pack'industrie S.A. Device for reconditioning tubes, particularly cardboard tubes
EP0755893A2 (fr) * 1995-07-28 1997-01-29 St-Lawrence Manufacturing Canada Inc. Procédé et appareil de recyclage de noyaux d'enroulement
FI104551B (fi) * 1998-07-15 2000-02-29 A P E Trading Oy Menetelmä ja laite paperirullahylsyjen liittämiseksi päittäin
US20040188014A1 (en) * 2001-07-05 2004-09-30 Kjell Johanson Method and device for jointing of cores

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994019271A1 (fr) * 1993-02-18 1994-09-01 Uno Johansson Procede de raccordement de sections de bobine et appareil pour sa mise en ×uvre
WO1995014631A1 (fr) * 1993-11-23 1995-06-01 Bergslagsteknik Ab Dispositif et procede de raccordement de manchons de carton
US5571541A (en) * 1993-12-07 1996-11-05 Pack'industrie S.A. Device for reconditioning tubes, particularly cardboard tubes
EP0755893A2 (fr) * 1995-07-28 1997-01-29 St-Lawrence Manufacturing Canada Inc. Procédé et appareil de recyclage de noyaux d'enroulement
FI104551B (fi) * 1998-07-15 2000-02-29 A P E Trading Oy Menetelmä ja laite paperirullahylsyjen liittämiseksi päittäin
US20040188014A1 (en) * 2001-07-05 2004-09-30 Kjell Johanson Method and device for jointing of cores

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008023099A1 (fr) * 2006-08-23 2008-02-28 Core Handling Oy Ltd Procédé destiné à être utilisé dans la fabrication d'un noyau utilisé dans le centre de bobines de carton et de papier
WO2008114115A3 (fr) * 2007-03-16 2009-02-19 Ga Vo Meccanica S N C Appareil pour connecter des noyaux tubulaires
EA015088B1 (ru) * 2007-03-16 2011-06-30 Га.Во.Мекканика С.Н.К. Аппарат для соединения трубчатых сердечников
US8322394B2 (en) 2007-03-16 2012-12-04 Ga. Vo. Meccanica S.N.C. Apparatus for connecting tubular cores
EP2502867A3 (fr) * 2007-03-16 2012-12-05 GA.VO. Meccanica di Tancredi Antonio & C. s.n.c. Station de découpe pour une utilisation dans un appareil pour la connexion et/ou la découpe de noyaux tubulaires supportant les rouleaux
WO2024152134A1 (fr) * 2023-01-19 2024-07-25 Gallardo Angulo Juan Romualdo Machine à découper et à refendre de rouleaux de carton en vue de leur récupération

Also Published As

Publication number Publication date
FI20041405A0 (fi) 2004-11-02
FI117008B (fi) 2006-05-15

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