WO2018158788A2 - Appareil et procédé pour la production d'une partie centrale en carton tubulaire et partie centrale en tubulaire - Google Patents

Appareil et procédé pour la production d'une partie centrale en carton tubulaire et partie centrale en tubulaire Download PDF

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Publication number
WO2018158788A2
WO2018158788A2 PCT/IT2018/050021 IT2018050021W WO2018158788A2 WO 2018158788 A2 WO2018158788 A2 WO 2018158788A2 IT 2018050021 W IT2018050021 W IT 2018050021W WO 2018158788 A2 WO2018158788 A2 WO 2018158788A2
Authority
WO
WIPO (PCT)
Prior art keywords
strip
cardboard
paper
edge
paper strip
Prior art date
Application number
PCT/IT2018/050021
Other languages
English (en)
Other versions
WO2018158788A3 (fr
WO2018158788A4 (fr
Inventor
Enrico BORGATTI
Renato Matteucci
Original Assignee
Cr Compagnie Riunite S.R.L.
R.F.M. Technology S.R.L.
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
Priority claimed from IT102017000022203A external-priority patent/IT201700022203A1/it
Application filed by Cr Compagnie Riunite S.R.L., R.F.M. Technology S.R.L. filed Critical Cr Compagnie Riunite S.R.L.
Publication of WO2018158788A2 publication Critical patent/WO2018158788A2/fr
Publication of WO2018158788A3 publication Critical patent/WO2018158788A3/fr
Publication of WO2018158788A4 publication Critical patent/WO2018158788A4/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
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B65H75/10—Kinds or types of circular or polygonal cross-section without flanges, e.g. cop tubes
    • 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
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/182—Identification means
    • 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
    • B65H2701/50—Storage means for webs, tapes, or filamentary material
    • B65H2701/51—Cores or reels characterised by the material
    • B65H2701/511—Cores or reels characterised by the material essentially made of sheet material
    • B65H2701/5112—Paper or plastic sheet material

Definitions

  • the present invention relates to an apparatus and a process for the manufacture of a cardboard core and the tubular cardboard core manufactured.
  • Cores or cardboard tubes are known, as used for instance by manufacturers of blotting paper, toilet paper, aluminum foil, transparent film or multipurpose paper, said cores for winding around paper/aluminium/transparent film for household or professional uses.
  • cores In general most cores consist of cardboard tubes being provided for paper (cores for paper mills), plastic (cores for films), textile (yarn coils), building (casting tubes) markets.
  • the cardboard tube takes several names depending on its operations and fields of use, but commonly it is named “tube” or "core”.
  • the cardboard tubes or cores of a roll of paper/aluminium foil/transparent film appear to the eyes of the final consumer as anonymous raw cylinders with a grey color.
  • These cardboard cores or tubes are almost entirely made from recycled paper (95%) and a portion from glue, the tubes are wound around a metallic cylinder (a spindle) whose size can vary from fewer centimeters to one meter.
  • a spindle whose size can vary from fewer centimeters to one meter.
  • These cores have a hardness more or less resistance, can be made with one or more raw cardboard strip overlapped on each other, depending on the quantity of material being wound around the same core or on the weight of such rolled material.
  • the spiral winding around the spindle of the tubing machine is made in such a way that there be an overlap of the two edges of the strip of about 10-20% of the strip width, said overlapping edges being joined with the use of suitable glue.
  • the invention is in the particular technical field of manufacturing cardboard cores with only one strip, usually being used with light paper roll like for instance toilet paper.
  • liquid glue being necessary to join firmly the two cardboard strip overlapping edges, causes a lot of problems during the tubular cardboard core manufacture, since the liquid glue delivery device is subjected to cogent conditions of operation and necessitates of a specific maintenance, besides being an extra cost for the entire production chain, both regarding the glue delivery device and the glue supply.
  • tubular cardboard cores just because of said overlapping described before, have a considerable weight, affecting not only the total weight of the finished roll, comprising the tubular cardboard core, but also the designing of apparatus and equipment using or treating said known cardboard core.
  • the apparatus, the manufacture process, and the tubular cardboard core object of the present invention aim to solve prior art problems, in particular removing the glue group from the manufacture apparatus thus obtaining a tubular cardboard core not provided with any overlapping of the raw cardboard strip, but provided with a paper gummed strip, possibly colored or multicolor printed for advertising purpose, placed along the contact line formed between the two edges of raw cardboard, once juxtaposed in the apparatus object of the present invention.
  • a further disadvantage of the prior art concerns the printing quality on the cardboard core of trademark of the completed paper roll, that will be sold to the final customer.
  • the trademark or company logo printed directly on the cardboard of the core shows feeble, fade, not brilliant and therefore it is not appreciated.
  • the manufacturer trademark or company logo is printed directly on the paper for instance, but this solution in some countries in the world is prohibited or anyway is unacceptable, and it is therefore a solution not appreciated by paper roll manufacturers, because it is not suitable for multicolor trademark and moreover it is a limiting solution for the creative customization of the manufacturers of paper rolls.
  • An object of the present invention is to provide a cheaper production apparatus for cardboard cores with only one strip, characterized by low maintenance costs, but however reliable, of simple construction, and low power consumption.
  • a further object of the present invention is to obtain a cardboard core minimizing use of cardboard in comparison of prior art, thus being of limited costs.
  • Another object of the present invention is to achieve cardboard cores for paper rolls characterized by low weight, low cost because of the lower quantity of cardboard used, but also at the same time promising high strength and reliability performances of the manufactured core.
  • a further object of the present invention is to provide a cardboard core being pleasant in view of prior art.
  • Another object of the present invention is making cardboard cores suitable for printing brilliant multicolor pictures or messages, with the maximum freedom of customization.
  • Another object of the present invention is making cardboard cores for paper rolls suitable for giving to paper roll manufacturers a further surface for printing advertising messages, trademarks or multicolor messages in general.
  • Fig. 1 is a front view of the apparatus of the present invention
  • Fig. 2 is a plan view of the apparatus of the present invention.
  • Fig. 3 is a tridimensional view of some components of the apparatus of the present invention.
  • Fig. 4 is a plan view of the tubular cardboard core of the present invention.
  • the apparatus of the invention comprising a reel holder 1 suitable for unwinding a paper strip 10, for instance made by kraft, cellulose or recycled paper, said paper strip 10 is provided on its lower side with a gummed area 100 (preferably arranged on the entire lower side of the paper strip 10), suitable for being moistened for making it adhesive.
  • a gum used in general for such a gummed area 100, dextrins, arabic gum, glue originated by gelatine, polyvinylic alcohol, and so on are mentioned.
  • the paper strip 10 of white color or possibly of any other color or wherein a multicolor printing is arranged will cover the contact line generated between the two edges of the raw cardboard strip 20, placed side by side on the spindle 50 of the tubing machine 5 during the manufacturing of the cardboard core.
  • the paper strip 10 can be suitable for rotogravure printing with four or five or more colors, or with flexography, or possibly with other digital systems.
  • a single raw cardboard strip 20 is unwound by a reel holder 2, being part of the apparatus object of the present invention, and will be spiral wound around the spindle 50 of the tubing machine 5 and will form the support structure of the cardboard core of invention, while said paper strip 10 will be glued to the two edges of the raw cardboard paper strip 20, which will be placed side by side on the spindle 50 during the forming of the cardboard core.
  • the apparatus disclosed further comprises a moistening means 3 such a anilox group 30, having the function of moistening through its roll 31 the gummed area 100 arranged on the lower side of the paper strip 10, in such a way to make it sticky, allowing the gluing of the paper strip 10 to the two edges of the raw cardboard strip 20 placed side by side forming the contact line between them.
  • the anilox group 30 is made with inox steel mechanic carpentry, worked through a machine tool and comprises a tank 32 containing a liquid, water in particular, constantly kept at a suitable temperature between 31°C and 44°C, such a temperature of water being suitable for activating gum of the gummed area 100.
  • the anilox group 30 is further provided with a pressure doctor blade 32 on the roll 31 of the anilox group
  • said wiping blade having the function of adjusting the water flow on the gummed area 100 of the paper strip 10.
  • the roll 31 of the anilox group 30 is being rotated by a brushless motor, suitable for varying the rotation speed of the roll 31 depending on the unwinding speed of the paper strip 10 by known means.
  • An alternative moistening means 3 can be a liquid nebulizer comprising as well a liquid tank, in particular water, also in this case constantly kept at a suitable temperature between 31°C and 44°C, such a temperature of water is suitable for activating gum of the gummed area 100.
  • the water temperature contained in the tank 32 of the anilox group 30 or of the nebulizer is adjusted by a thermocouple suitable for detecting the liquid temperature, which in turn controls the turning on or off of the heating resistance inserted inside the tank by a suitable support.
  • the apparatus may further comprise a computer executing a suitable software for controlling and operatively managing the entire production line, said software being suitable for controlling the water temperature in the tank 32 of the anilox group 30/nubulizer, the numbers of revolution of the roll 31 of the anilox group 30/the nebulizing parameters of the nebulizer, the linear unwinding velocity of the paper strip 10, on the basis of preset water temperature data of the water contained in the tank 32, of the numbers of revolution of the roll
  • the apparatus object of the present invention comprises furthermore, following the moistening means 3, a strip driving group 4 provided with a plurality of rolls 40 arranged at suitable heights and mutual distances, said rollers 40 allowing to align in the correct mode the paper strip 10 and the raw cardboard strip 20, in particular the strip driving group 4 arranges the paper strip 10 to cover preferably with its half width and to lay down over the raw cardboard strip 20, gluing near the entrance of the spindle 50 by its gummed area 100 already moistened by the moistening means 3, as shown in figure 3.
  • a strip driving group 4 provided with a plurality of rolls 40 arranged at suitable heights and mutual distances, said rollers 40 allowing to align in the correct mode the paper strip 10 and the raw cardboard strip 20, in particular the strip driving group 4 arranges the paper strip 10 to cover preferably with its half width and to lay down over the raw cardboard strip 20, gluing near the entrance of the spindle 50 by its gummed area 100 already moistened by the moistening means 3, as shown in figure 3.
  • the apparatus of invention Downstream the strip driving group 4 the apparatus of invention is provided, as already mentioned, with a tubing machine 5 spiral winding the assembly formed beforehand by the cardboard strip 20 to the first edge of which is glued the paper strip 10, in such a way that the second edge of a spire close to the raw cardboard strip 20, previously wound up around the spindle 50 of the tubing machine 5, is placed side by side and is joined to said first edge of the raw cardboard strip 20 along a contact line, in such a way that the paper strip 10 adheres gluing to the second edge of the cardboard strip 20 as well.
  • both the reel holder 1 suitable for unwinding the paper strip 10 and the reel holder 2 suitable for unwinding the raw cardboard strip 20, are provided with a control and adjustment system of the unwinding inclination of respective strips.
  • the production process of the tubular cardboard core object of the present invention comprises the following steps:
  • a strip driving group 4 driving the arrangement of the paper strip 10 to overlap preferably for half of its width on a first edge of the cardboard strip 20 and for moving forward aligned to the paper strip 10 towards the next tubular cardboard core forming step;
  • the cardboard core according to the present invention is arranged with a raw cardboard strip 20, being spiral wound, wherein the edges of the raw cardboard strip 20, being not overlapped, but being mutually placed side by side, forming a contact line. Furthermore said core provides for a paper strip 10, for instance glossy white or any other color paper, which adheres, gluing through the gummed area 100, to the side by side placed raw cardboard strip 20 edges, covering said contact line between the two edges.
  • the cardboard core for paper rolls of the present invention may be made by a paper strip being printed with different colors, logos or other possible messages of the manufacturer of the paper rollers.
  • object of the present invention is the paper roll comprising the cardboard core as already disclosed in the present invention as shown in the fig. 3.
  • reel holder 1 reel holder 1
  • reel holder 2 moistening mean 3
  • strip driving group 4 tubing machine
  • paper strip 10 raw cardboard strip 20, anilox group 30, roller 31, tank 32, rollers 40, spindle 50, belt 51,

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  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Making Paper Articles (AREA)

Abstract

L'invention concerne un appareil de fabrication de partie centrale en carton tubulaire comprenant un élément de support de bobine d'une bande de papier afin de permettre le retrait d'un groupe de colle pour la production d'une partie centrale en carton, une bande de papier recouvrant la ligne de contact entre les bords de la bande de carton brut étant déjà enroulée en spirale. L'invention concerne également le procédé de fabrication de partie centrale en carton tubulaire et la partie centrale en carton tubulaire fabriquée.
PCT/IT2018/050021 2017-02-28 2018-02-14 Appareil et procédé pour la production d'une partie centrale en carton tubulaire et partie centrale en tubulaire WO2018158788A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT102017000022203A IT201700022203A1 (it) 2017-02-28 2017-02-28 Anima di cartone tubolare, apparato e procedimento di produzione di anima di cartone tubolare
IT102017000022203 2017-02-28
IT201700117145 2017-10-17
IT102017000117145 2017-10-17

Publications (3)

Publication Number Publication Date
WO2018158788A2 true WO2018158788A2 (fr) 2018-09-07
WO2018158788A3 WO2018158788A3 (fr) 2018-10-11
WO2018158788A4 WO2018158788A4 (fr) 2018-11-29

Family

ID=62245385

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2018/050021 WO2018158788A2 (fr) 2017-02-28 2018-02-14 Appareil et procédé pour la production d'une partie centrale en carton tubulaire et partie centrale en tubulaire

Country Status (1)

Country Link
WO (1) WO2018158788A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112455007A (zh) * 2019-09-06 2021-03-09 厚旌盛精化股份有限公司 纸吸管的制造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2623445A (en) * 1944-07-24 1952-12-30 Robinson Ernest Bradbury Method of producing helically wound containers
US3972468A (en) * 1975-11-28 1976-08-03 The Pillsbury Company Refrigerated dough can
US6066373A (en) * 1998-09-01 2000-05-23 Sonoco Development, Inc. Elastomeric yarn support tube and method of making same
US6089483A (en) * 1998-12-07 2000-07-18 Vision Denstar Inc. Roll or spool having a support member with a visual message thereon
US6631574B2 (en) * 2001-05-10 2003-10-14 Robert Okyere Tubular roll core with display

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112455007A (zh) * 2019-09-06 2021-03-09 厚旌盛精化股份有限公司 纸吸管的制造方法
CN112455007B (zh) * 2019-09-06 2023-01-31 厚旌盛精化股份有限公司 纸吸管的制造方法

Also Published As

Publication number Publication date
WO2018158788A3 (fr) 2018-10-11
WO2018158788A4 (fr) 2018-11-29

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