EP1676804A2 - Stossverbinding für Wickelkerne aus Papier - Google Patents

Stossverbinding für Wickelkerne aus Papier Download PDF

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Publication number
EP1676804A2
EP1676804A2 EP05397026A EP05397026A EP1676804A2 EP 1676804 A2 EP1676804 A2 EP 1676804A2 EP 05397026 A EP05397026 A EP 05397026A EP 05397026 A EP05397026 A EP 05397026A EP 1676804 A2 EP1676804 A2 EP 1676804A2
Authority
EP
European Patent Office
Prior art keywords
core
cores
conical surface
joint
abutment joint
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.)
Withdrawn
Application number
EP05397026A
Other languages
English (en)
French (fr)
Other versions
EP1676804A3 (de
Inventor
Pekka ÄMTÖ
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.)
Core Handling Ltd Oy
Original Assignee
Core Handling Ltd 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
Application filed by Core Handling Ltd Oy filed Critical Core Handling Ltd Oy
Publication of EP1676804A2 publication Critical patent/EP1676804A2/de
Publication of EP1676804A3 publication Critical patent/EP1676804A3/de
Withdrawn legal-status Critical Current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
    • 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

Definitions

  • the invention relates to end-to-end joining of paper reel cores.
  • the invention relates to a shape of the joint used in said joining.
  • a paper web is conventionally wound up during different finishing operations on a core made from a plurality of spirally overlappingly wound plies of narrow strips of board. Prior to their winding into a core, the board strips are glued, conventionally using a sodium silicate solution.
  • the finished core length must be exactly matched with the width of the paper web exiting from a slitter and being wound on the core.
  • the core must be flawless to avoid problems in co-operation of the reels with the spindles of winder equipment employed in the final use and/or finishing of the paper.
  • a used core presents a waste problem, since only a part of such used cores can be reused for manufacturing core board. Consequently, while effort has been made to fmd possibilities of recycling cores, also this approach involves problems. The most essential problem is the damage caused to the core ends. Conventionally, methods of overcoming this drawback have been sought from reworking of core sections. A basic goal of reworking is to remove the damaged portion from the core end and then to join the thus reworked core end with the end of another core section similarly reworked so as to form a continuous core master that can be severed to desired lengths for reuse. One type of joining method and apparatus of this kind has been described in the international publication WO 00/03868.
  • conical surfaces are first made on the surfaces of the cores to be joined so that on one core a conical surface is formed on the inner surface of the core and on the other core a conical surface is formed on the outer surface of the core.
  • Glue is then applied either to the conic surface of one core or both cores, and the cores are then pushed end to end so that the formed conical surfaces abut against each other. This is repeated to form a continuous core master from pieces which core master is severed to cores of desired lengths for reuse.
  • the glue to be used must be fast drying in order immediately to obtain a sufficiently strong joint for the cores to be joined using continuously operating joining equipments.
  • a protrusion is formed at the nose of one conic surface, and a complementary groove is formed at the roof of the other conical surface, whereby, after adding glue, said protrusion and said groove form an interlocking (form-fit) joint between the cores,.
  • This interlocking joint supports the joint directly after joining the mating surfaces enabling so the use of glues drying more slowly and having improved reactivity with the mating surfaces. This enables to obtain a longitudinal joint of improved stability and improved quality.
  • Figure 1 shows an embodiment of joining surfaces formed according to the invention.
  • a conical surface 3 is formed on the inner surface of the core 1 and a conical surface 4 is formed on the outer surface of the core 2, by means of which conical surfaces the cores are joined in an abutting manner against each other.
  • a protrusion 6 is formed on the conical surface 4 at the nose of the core 2, the protrusion 6 projecting from the conical surface approx. 2 - 3 mm. The length of the protrusion from the core end is approx. 5 mm.
  • a groove 5 complementary to said protrusion of the core 2 is formed at the inner edge of the conical surface 3 of the core 1.
  • the protrusion may be formed at any site of either of the surfaces of the cores to be joined. Preferably it is, however, formed adjacent to the end edge of the core to enable the protrusion to flex inwardly while being inserted into the complementary groove. If required, it is also possible to form a protrusion on both conical surfaces of the cores to be joined and complementary grooves on the opposite conical surface.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Replacement Of Web Rolls (AREA)
EP05397026A 2004-12-29 2005-12-19 Stossverbinding für Wickelkerne aus Papier Withdrawn EP1676804A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20040490U FI6592U1 (fi) 2004-12-29 2004-12-29 Paperirullahylsyjen päittäisliitos

Publications (2)

Publication Number Publication Date
EP1676804A2 true EP1676804A2 (de) 2006-07-05
EP1676804A3 EP1676804A3 (de) 2006-08-02

Family

ID=33547915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05397026A Withdrawn EP1676804A3 (de) 2004-12-29 2005-12-19 Stossverbinding für Wickelkerne aus Papier

Country Status (4)

Country Link
US (1) US20060180701A1 (de)
EP (1) EP1676804A3 (de)
CA (1) CA2530897A1 (de)
FI (1) FI6592U1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058259A3 (de) * 2007-11-06 2009-11-04 Voith Patent GmbH Wickelhülsenanordnung für eine Rollenwickeleinrichtung, Wickelhülse und Rollenwickeleinrichtung

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070262839A1 (en) * 2006-05-09 2007-11-15 Spang & Company Electromagnetic assemblies, core segments that form the same, and their methods of manufacture
US20070261231A1 (en) * 2006-05-09 2007-11-15 Spang & Company Methods of manufacturing and assembling electromagnetic assemblies and core segments that form the same
US10852367B2 (en) 2007-05-30 2020-12-01 Infineon Technologies Ag Magnetic-field sensor with a back-bias magnet
DE102007025000B3 (de) 2007-05-30 2008-12-11 Infineon Technologies Ag Magnetfeldsensor
US10338158B2 (en) 2007-05-30 2019-07-02 Infineon Technologies Ag Bias magnetic field sensor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994019271A1 (en) * 1993-02-18 1994-09-01 Uno Johansson A method for jointing bobbin sections and plant herefor
WO2000003868A1 (en) * 1998-07-15 2000-01-27 A.P.E. - Trading Oy Method and device for jointing core ends
US6102327A (en) * 1993-11-03 2000-08-15 Mossberg Industries, Inc. Mating spool assemblies for relieving stress concentrations
WO2003004393A1 (en) * 2001-07-05 2003-01-16 Core Link Ab Method and device for jointing of cores

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6425550B1 (en) * 2000-03-28 2002-07-30 Illinois Tool Works Inc. Carrier tape reel assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994019271A1 (en) * 1993-02-18 1994-09-01 Uno Johansson A method for jointing bobbin sections and plant herefor
US6102327A (en) * 1993-11-03 2000-08-15 Mossberg Industries, Inc. Mating spool assemblies for relieving stress concentrations
WO2000003868A1 (en) * 1998-07-15 2000-01-27 A.P.E. - Trading Oy Method and device for jointing core ends
WO2003004393A1 (en) * 2001-07-05 2003-01-16 Core Link Ab Method and device for jointing of cores

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2058259A3 (de) * 2007-11-06 2009-11-04 Voith Patent GmbH Wickelhülsenanordnung für eine Rollenwickeleinrichtung, Wickelhülse und Rollenwickeleinrichtung

Also Published As

Publication number Publication date
EP1676804A3 (de) 2006-08-02
FIU20040490U0 (fi) 2004-12-29
US20060180701A1 (en) 2006-08-17
FI6592U1 (fi) 2005-02-25
CA2530897A1 (en) 2006-06-29

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