WO1993015992A1 - Procede de fabrication de tambours a usage unique - Google Patents

Procede de fabrication de tambours a usage unique Download PDF

Info

Publication number
WO1993015992A1
WO1993015992A1 PCT/SE1993/000124 SE9300124W WO9315992A1 WO 1993015992 A1 WO1993015992 A1 WO 1993015992A1 SE 9300124 W SE9300124 W SE 9300124W WO 9315992 A1 WO9315992 A1 WO 9315992A1
Authority
WO
WIPO (PCT)
Prior art keywords
sleeve
central
ring
rings
support ring
Prior art date
Application number
PCT/SE1993/000124
Other languages
English (en)
Inventor
Ulf Lindstrand
Original Assignee
Ulvator Ab
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 SE9200487A external-priority patent/SE9200487L/xx
Application filed by Ulvator Ab filed Critical Ulvator Ab
Publication of WO1993015992A1 publication Critical patent/WO1993015992A1/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
    • B65H75/02—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
    • B65H75/14—Kinds or types of circular or polygonal cross-section with two end flanges
    • 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
    • B65H2701/515—Cores or reels characterised by the material assembled from parts made of different materials
    • B65H2701/5152—End flanges and barrel of different material
    • B65H2701/51524—Paperboard barrel

Definitions

  • the present invention relates to a method of manufacturing metal-free disposable drums intended for a continuous flexible object and having a diameter within the range of 500-900 mm, said drum consisting of a cylindrical form stable sleeve of cardboard with parallel end surfaces and two circular end pieces of compressed wood chip material or plywood joined firmly to the end parts of the sleeve by means of wedge joints and having a central aperture for shaft members for winding and unwinding the object, each end piece being produced in situ of a flat support ring for the object having a central aperture for the sleeve with a cylindrical wall surface, and a flat central ring with conical peripheral surface, said rings having parallel outer and inner sides.
  • both the central ring and the support ring have conical surfaces and the conicity is so great that axial forces will be exerted on the central ring, with the risk of it being displaced out of the sleeve, particularly when uneven loading occurs on the support ring as may happen when uncoiling the cable, so that the wedge joint loosens at the diametrically opposite side of the support ring and central ring in relation to the point of load.
  • US-A-2 881 986 neither reveals nor suggests simultaneous pushing in the support and central rings after they have been placed in a more clearly defined starting position in relation to the sleeve and employing very slight conicity on the peripheral surface of the central ring.
  • the object of the invention is to eliminate the problems mentioned above and manufacture a disposable drum that fulfils said desires in a simple and efficient manner resulting in such a strong wedge joint that larger disposable drums, namely sizes up to 900 mm, can be manufactured than has been possible before in situations where the conventional, inconvenient wooden drums have had to be used, and also ensuring that the end pieces are parallel to each other and that their outer sides coincide with the end surfaces of the sleeve, thereby ensuring uniform distance between the support rings all round (360°).
  • the disposable drum according to the invention is manufactured by applying the support ring on the end part of the sleeve free from play so that, with a good fit to the sleeve it is retained in a starting position after having been pushed in a distance onto the end part shorter than the thickness of the support ring, after which the central ring, which is thicker than the support ring and has a peripheral surface with conicity of 1-5°, is inserted a limited distance into the end opening of the sleeve, this distance being less than the thickness of the central ring, said central ring at its inner side having a diameter somewhat less than the inner diameter of the sleeve so that said insertion can be performed manually, and at its outer side having a diameter somewhat larger than the inner diameter of the sleeve so that said limited insertion is ensured when an initial wedge engagement is achieved in cooperation with the inner side of the sleeve, after which the disposable drum thus pre-assembled is placed between two press members having parallel pressure surfaces facing each other, each of which covers the
  • Figure 1 is a longitudinal section through a disposable drum manufactured in accordance with the present invention.
  • Figure 2 is a view in perspective of a sleeve and parts of an end piece to be anchored to the end of the sleeve by means of a wedge joint.
  • Figure 1 shows a longitudinal section through a disposable drum manufactured in accordance with the invention and consisting of a cylindrical sleeve 1 forming a form stable core, and two circular form stable end pieces 2, 3 joined firmly to the sleeve 1 at its two end parts 4, 5.
  • the sleeve 1 has flat end surfaces 6, 7, located parallel to each other and perpendicular to the central axis 8 of the sleeve.
  • the diameter of the end pieces 2, 3 is larger than that of the sleeve 1 so that, between them, they define a space 9 for a coil of a . continuous object comprising preferably cable or line, but also wire, wire cable, rope, cord, ribbon, hosing, chain or similar easily coiled, flexible object.
  • Each end piece 2, 3 has a central aperture 10 to receive a shaft or two opposing shaft extensions of equipment for coiling or uncoiling the cable, etc.
  • the sleeve consists of cardboard, manufactured from layers of cardboard glued together with waterproof adhesive, and has a constant predetermined wall thickness to ensure sufficient rigidity to carry said coil.
  • the size of the disposable drums manufactured according to the invention is within the range 500-900 mm, this size referring to the diameter of the end pieces.
  • the end pieces consist of wood chip material or plywood.
  • disposable drums are manufactured that are entirely free from metal objects and plastic.
  • Each end piece comprises two separate parts, namely a flat support ring 11 for the cable, etc., and a flat central ring 12 with central aperture 10 for said shaft or shaft extensions.
  • the outer and inner sides 13, 14 of the support ring 11 are parallel and the ring has a central aperture 15 with cylindrical wall surface and a diameter equal to or somewhat larger than the outer diameter of the sleeve 1 so that the support ring 11 can be applied on the end part of the sleeve 1 without any play appearing, i.e. the support ring 11 is fitted onto the sleeve with slight friction so that it is retained in a starting position.
  • Application is suitably performed manually on a sleeve 1 placed horizontally on a conveying belt (not shown), the width of the belt corresponding to the length of the sleeve 1 less twice the thickness of the support ring 11, the belt acting as a support and preventing the support rings 11 from being pushed too far in on the end parts 4, 5 of the sleeve 1 during this initial manual assembly phase.
  • Each support ring 11 is thus pushed onto the end part 4, 5 a distance equivalent to or preferably slightly less than the thickness of the support ring 11.
  • the thickness of the support ring is 10- 25 mm depending, amongst other factors, on the size of the disposable drum.
  • the central ring 12 has parallel outer and inner sides 16, 17 and a conical peripheral surface 18 (see Figure 2), extending between the outer and inner sides 16, 17.
  • the diameter of the central ring 12 is slightly smaller, e.g. 1-3 mm, on the inner side 17 than the inner diameter of the sleeve 1, and the diameter on its outer side 16 slightly larger, e.g. 2-5 mm, than the inner diameter of the sleeve 1 so that the central ring can be inserted a limited distance into the end opening 19 of the sleeve until an initial wedge engagement is achieved in cooperation with the inner side 20 of the sleeve.
  • This limited distance is at most half and preferably at most one third of the thickness of the central ring 12.
  • This insertion of the central rings 12 is suitably performed manually until said initial wedge engagement has been achieved so that the central rings 12 remain in their laterally, axially projecting positions.
  • the thickness of the identical central rings 12 is greater than that of the identical support rings 11 and lies within the range 25-35 mm. It will be understood that the support rings 11 can be applied after the central rings 12 have been inserted into the sleeve in the initial positions described.
  • the disposable drum preassembled in this manner is than conveyed by the conveyor strip to a press station with two press members, spaced from each other, between which the disposable drum is placed.
  • the press members have vertical, parallel pressure surfaces facing each other, these surfaces being larger than the cross-sectional area of the sleeve 1 and suitably so large that the whole end piece being formed is covered from each direction.
  • the press members are moved towards each other until their pressure surfaces are brought into abutment with the end surfaces 6, 7 of the sleeve.
  • the central rings 12 are pressed into the end openings 19 of the sleeve 1 and the support rings 11 are adjusted to their correct positions so that their outer sides 13, 16 and the end surfaces 6, 7, respectively of the sleeve 1 are located in one and the same vertical plane. While the central rings 12 are being forced in in this way the wedge forces increase continuously and a sturdy, permanent wedge joint is achieved in the final position for each end piece, in which the sleeve 1 is clamped by radially outwardly directed wedge forces from the central ring 12 and radially inwardly directed forces from the support ring 11.
  • a waterproof adhesive may be applied on the conical surface of the central ring and/or on the inner side of the sleeve in order to strengthen the wedge joint.
  • the central ring 12 has a conicity of 1-5°, depending amongst other factors, on the thickness of the central ring.
  • the method according to the invention thus means that no bolts or steel parts are required to assemble the drum, which in turn means that all material can be discarded or burned on site once the line or cable has been uncoiled, since all material is environmentally friendly.

Abstract

Procédé de fabrication d'un tambour à usage unique et sans métal pour un câble ou une ligne, par exemple, et comprenant un cylindre (1) de carton et deux parties terminales (2, 3) en aggloméré ou en contreplaqué, chaque partie terminale étant fabriquée sur place et composée d'un anneau de support (11) et d'un anneau central (12) à surface périphérique conique (18). Selon l'invention, l'anneau de support (11) est appliqué sans jeu sur l'extrémité (4, 5) du cylindre de façon à être retenu dans une position initiale, après quoi l'anneau central (12) est introduit à une distance limitée dans le cylindre (1), cette distance étant inférieure à l'épaisseur de l'anneau central (12). Le tambour à usage unique ainsi pré-assemblé est alors placé entre deux éléments de compression présentant des surfaces de pression parallèles vis-à-vis l'une de l'autre, ces surfaces de pression venant en butée avec les surfaces extrêmes (6, 7) du cylindre. Les anneaux (11, 12) sont en même temps comprimés de sorte que leurs côtés externes (13, 16) soient situés en un plan coïncidant avec la surface terminale (6, 7) du cylindre afin de former une jonction à blocage.
PCT/SE1993/000124 1992-02-18 1993-02-17 Procede de fabrication de tambours a usage unique WO1993015992A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9200487A SE9200487L (sv) 1991-02-20 1992-02-18 Materialutlopp
SE9200478-7 1992-02-18

Publications (1)

Publication Number Publication Date
WO1993015992A1 true WO1993015992A1 (fr) 1993-08-19

Family

ID=20385361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1993/000124 WO1993015992A1 (fr) 1992-02-18 1993-02-17 Procede de fabrication de tambours a usage unique

Country Status (1)

Country Link
WO (1) WO1993015992A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102180386A (zh) * 2011-05-30 2011-09-14 大连嘉泰生态网业有限公司 多组网片分片卷曲器
CN103640932A (zh) * 2013-12-13 2014-03-19 郯城县明珠发展有限公司 用于电力线缆的收线盘

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US747859A (en) * 1903-02-27 1903-12-22 George Howlett Davis Compensating music roll or spool.
US775994A (en) * 1904-01-18 1904-11-29 Morley Button Mfg Company Spool or the like.
US843454A (en) * 1906-05-17 1907-02-05 Peter Hardman Spool.
US872480A (en) * 1906-03-02 1907-12-03 Marshall Tilden Spool.
US1152278A (en) * 1914-11-13 1915-08-31 American Pulley Co Spool.
DE355481C (de) * 1922-06-27 Johannes Schmidt Scheibenspule, bei welcher die Scheiben mit dem Spulenrohr durch U-foermige Klammernverbunden sind
US2881986A (en) * 1956-03-08 1959-04-14 American Pulley Co Spool construction
US3057576A (en) * 1960-03-11 1962-10-09 Scaglia M Compound spinning bobbin

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE355481C (de) * 1922-06-27 Johannes Schmidt Scheibenspule, bei welcher die Scheiben mit dem Spulenrohr durch U-foermige Klammernverbunden sind
US747859A (en) * 1903-02-27 1903-12-22 George Howlett Davis Compensating music roll or spool.
US775994A (en) * 1904-01-18 1904-11-29 Morley Button Mfg Company Spool or the like.
US872480A (en) * 1906-03-02 1907-12-03 Marshall Tilden Spool.
US843454A (en) * 1906-05-17 1907-02-05 Peter Hardman Spool.
US1152278A (en) * 1914-11-13 1915-08-31 American Pulley Co Spool.
US2881986A (en) * 1956-03-08 1959-04-14 American Pulley Co Spool construction
US3057576A (en) * 1960-03-11 1962-10-09 Scaglia M Compound spinning bobbin

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102180386A (zh) * 2011-05-30 2011-09-14 大连嘉泰生态网业有限公司 多组网片分片卷曲器
CN103640932A (zh) * 2013-12-13 2014-03-19 郯城县明珠发展有限公司 用于电力线缆的收线盘

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