EP0001171B1 - Dispositif pour envelopper les extrémités de rouleaux - Google Patents

Dispositif pour envelopper les extrémités de rouleaux Download PDF

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Publication number
EP0001171B1
EP0001171B1 EP78300342A EP78300342A EP0001171B1 EP 0001171 B1 EP0001171 B1 EP 0001171B1 EP 78300342 A EP78300342 A EP 78300342A EP 78300342 A EP78300342 A EP 78300342A EP 0001171 B1 EP0001171 B1 EP 0001171B1
Authority
EP
European Patent Office
Prior art keywords
roll
members
extension
tucking
axial bore
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.)
Expired
Application number
EP78300342A
Other languages
German (de)
English (en)
Other versions
EP0001171A1 (fr
Inventor
Hiroshi Kataoka
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0001171A1 publication Critical patent/EP0001171A1/fr
Application granted granted Critical
Publication of EP0001171B1 publication Critical patent/EP0001171B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B49/00—Devices for folding or bending wrappers around contents
    • B65B49/08—Reciprocating or oscillating folders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B25/00—Packaging other articles presenting special problems
    • B65B25/14—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form
    • B65B25/146—Packaging paper or like sheets, envelopes, or newspapers, in flat, folded, or rolled form packaging rolled-up articles
    • B65B25/148—Jumbo paper rolls

Definitions

  • This invention relates to a wrapping device and more particularly to a device for wrapping rolls to cover their ends as well as their sides.
  • a wrapping paper is wound with its ends slightly projected from the ends of the rolls and this projected cylindrical portion of the wrapping paper is tucked gradually towards the centre of the ends of the roll as the roll is rotated and a separate circular piece of wrapping paper is pasted thereon (U.S. Patent No. 2,368,213).
  • a wrapping paper is wound with its ends projected by at least a length equal to the radius of the roll, then the projected wrapping paper is twisted by rotating the roll and pushed into the hole at the centre of the roll.
  • the former method produces a good appearance because the ends of the roll are covered with a circular piece of wrapping paper.
  • it has a fault in that the process of pasting on the circular piece of wrapping paper is troublesome and that it closes up the centre hole of the roll, making it inconvenient to transport.
  • the latter method is simpler in its process than the former. However, it may impair the quality and appearance of the roll by the formation of irregular wrinkles on the wrapped ends. Therefore, it is used mainly for rolls of small diameter.
  • the inventor previously proposed a first method of wrapping about a roll a paper pre-processed to have folds in the portions destined to extend cylindrically from the ends of the roll and then winding the folded portion and tucking it into the centre of the roll (Japanese Patent Disclosure No. 13984/77), and a second method wherein tucking members are positioned at equal spaces on the periphery at the ends of the rolls, the cylindrical portions of wrapped paper extending from the ends of the rolls are depressed towards the centre of the roll so that ridge portions are formed, whereafter the centre portion of the wrapping paper is pushed into the centre of the rolls and the ridge portions are laid in a fixed direction (Japanese Patent Disclosure No. 70691/77).
  • U.S. Patent No. 2,066,414 provides a device for wrapping cylindrical containers or articles in which folds are formed in a cylindrical extension of wrapping material which extends beyond the ends of the article.
  • This device includes at a single station a plurality of circumferentially spaced tucking members (153) and a plurality of internal projecting members (164), which cooperate with each other to provide alternate grooves and ridges in the extension.
  • tucking members 153
  • internal projecting members 164
  • a plurality of radially movable internal projecting members (13) are provided in association with said tucking members (4) to assure correct ridge and groove formation and in that said projecting members and said plug means are disposed on a common axial shaft (11), said shaft being moved axially from a first operational position in which said projecting members contact the inner surface of the extension, to a second operational position in which said projecting members and said plug are clear of said extension and subsequently to a third operational position wherein said plug causes said portion of said extension to enter the axial bore.
  • the device according to the present invention can wrap the ends of the roll neatly by producing even folds and prevent the central hole of the roll from being blocked. Accordingly, the present device is suitable particularly for a roll of large diameter.
  • a roll 1 to be wrapped is rotated by rollers 3 (rotation and support mechanisms not shown) to have several wrappings of a wrapping paper 2 wound thereon so as to project from the ends of the roll 1. Consequently, the end portion 2' of the wrapping paper projects cylindrically from both ends of the roll 1.
  • the length of the projected wrapping paper 2' should be slightly larger than the radius of the roll.
  • a device for wrapping that end of the roll At either end of the roll 1, there is provided a device for wrapping that end of the roll.
  • the device is mounted on a frame 9 and is adjusted to a prescribed distance from the end of the roll by moving the frame 9 supported by wheels 22 along a rail 23.
  • a cylindrical frame 21 having a slightly larger diameter than that of the roll to be wrapped is provided on the frame 9.
  • the cylindrical frame 21 has a number of tucking members 4 for tucking in the projected portion of the wrapping paper 2' placed at equal intervals about the circumference thereof.
  • a fulcrum supporting shaft 6 for each tucking member 4 is supported by a bearing 5 fixed on the side of the cylindrical frame 21.
  • the fulcrum supporting shafts 6 of the tucking members are connected by flexible joints 7 in a generally circular pattern ( Figure 2).
  • An arm 10 is projected from the fulcrum supporting shaft of the topmost fulcrum supporting shaft 6, and a fluid pressure cylinder 8 is connected to the arm 10. Therefore, the operation of the fluid pressure cylinder 8 causes the tips of the tucking members 4 to turn simultaneously towards the center of the cylindrical frame round the fulcrum supporting shaft 6.
  • a plug 14 having substantially the same diameter as that of the hole 1' projects from the frame 9, and the plug 14 is given an axial movement and slow rotational motion through a shaft 11.
  • the shaft 11 of the plug 14 has a sliding base 12 and a fixed ring 19 fitted thereon.
  • the sliding base 12 has pivotally attached thereto a number of radially extending main arms 16 equal to the number of tucking members 4.
  • each main arm 16 is provided with a rotary piece 17 having welded thereon a projecting member 13 and the main arm 16, the rotary piece 17, an arm 18 and an arm 20 form a parallelogram.
  • the lower end of the arm 20 is pivotally attached to the fixed ring 19. Therefore, when the sliding base 12 is caused to advance on the shaft 11 by rotation of driving screws 24', the link mechanism of the projecting members 13 all expand radially at one time and the tips 13' of the projecting members are placed between the tucking members 4. Then if the sliding base 12 is caused to retract by reverse rotation of the driving screws 24', the main arm 16 and the projecting members 13 are brought more parallel to the shaft 11, that is they are brought into a folded state.
  • the driving screw 24' is rotated by a motor (not shown) in a box 24.
  • the frame 9 is moved so as to position the fulcrum supporting shafts 6 of tucking members 4 near the end of the roll 1 which has been wound on its periphery with wrapping paper 2 by the roller 3 ( Figure 3(A)).
  • the cylinder 8 When the fulcrum supporting shafts 6 are positioned near the end of the roll 1, the cylinder 8 is operated to turn all the tucking members 4 inward at the same time and the sliding base 12 is advanced to cause the projecting members 13 to rise and bring the tips 13' into contact with the inside of the cylinder of wrapping paper 2' projecting from the end of the roll 1.
  • the tucking members 4 contact the periphery of the cylinder of wrapping paper 2' projecting from the end of the roll 1 from the outside to produce groove portions, while the projecting members 13 contact the cylinder of wrapping paper from the inside at points lying between the tucking members to produce ridge portions ( Figure 3(B)).
  • the tucking members 4 are caused to turn inward by further operation of the cylinder 8. Then, the sliding base 12 is caused to draw back so as to pucker up the projecting members 13. The operation of the projecting members is slightly delayed so that the cylinder of wrapping paper is always formed into grooves by the tucking members and into ridges by the projecting members.
  • the , tucking members can be of rod or plate shape and can be made of plastic, wood or metal. They are of a length equal to, or somewhat less than, the thickness of the paper on the roll (from the surface to the center hole). When the structure shown in Figure 5- Figure 7 is used, the folds will be finished more neatly on the ends of the roll.
  • projecting rails 26 are provided on the both sides of a bar member 25 having a fin, and triangular plates 27 are slidably inserted into the projecting rails 26.
  • a cylinder 29 is fixed on the bar member 25 and connected with triangular plates 27 through a bracket 28.
  • an elastic wire 30 is supported by a shaft 33 and rotated by a cylinder 31 placed at the tip of the bar member 25.
  • a flexible piece 34 is provided on the tip of the tucking members as shown in Figure 9.
  • This piece 34 is normally held in extended state by means of a spring 35, and when the wrapping paper is pushed in by the plug 14, it is caused to bend into the hollow hole under the force of the plug 14. Through this action the piece 34 protects the edge of the hole and also makes the folds neat.
  • the projecting members 13 are made of a highly flexible wire material because the wrapping paper may be broken if the motions of the tucking members and the projecting members 13 are not smoothly coordinated.
  • the material of these pieces can be metal, plastic, wood, bamboo, etc.
  • the most appropriate relationship between the motions of the tucking and projecting members can be obtained by experiments and calculations, and it is preferable to control the hydraulic cylinder- actuating motor so that the tucking and projecting members can work in accordance with such relationship.
  • the device for wrapping the ends of rolls according to this invention folds the cylinder of wrapping paper projecting from the ends of the roll by supporting the cylinder from both the inside and the outside and thus is able to wrap the ends in neat folds. It is especially suitable for wrapping rolls having a larger diameter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Special Articles (AREA)
  • Basic Packing Technique (AREA)
  • Package Closures (AREA)

Claims (5)

1. Dispositif pour envelopper dans un matériau d'emballage (2) une extrémité d'un rouleau ayant un trou axial (1'), ce matériau ayant été enroulé autour du rouleau de façon à former une rallonge cylindrique de longueur voisine du rayon du rouleau de matériau d'emballage dépassant de l'extrémité du rouleau, comprenant à un seul poste la combinaison suivante:
a) une série d'éléments replieurs (4) espacés circonférentiellement qui coopèrent pour former dans la rallonge des gorges et des crêtes alternées,
b) des moyens (3) destinés à produire une rotation partielle du rouleau pour appliquer les crêtes sur les gorges pendant que les éléments replieurs (4) serrent la rallonge pourvue de crêtes et de gorges contre l'extrémité du rouleau, et
c) des moyens du genre tampon (14), destinés à faire entrer et maintenir une partie de la rallonge dans le trou axial, caractérisé en ce qu'il comporte une série d'éléments intérieurs saillants (13) mobiles radialement destinés en association avec les éléments replieurs (4), à assurer la formation correcte des crêtes et des gorges, et en ce que les éléments saillants et les moyens du genre tampon sont montés sur un arbre axial commun (11) mobile axialement depuis une première position dans laquelle les éléments saillants sont en contact avec la face intérieure de la rallonge jusqu'à une deuxième position dans laquelle les éléments saillants et le tampon sont dégagés de la rallonge, et ensuite jusqu'à une troisième position dans laquelle le tampon fait entrer ladite partie de la rallonge dans le trou axial.
2. Dispositof selon la revendication 1, caractérisé en ce que chacun des éléments replieurs
(4) est pourvu de deux ailes (27) qui peuvent se déplacer vers le centre de l'extrémité du rouleau après que les éléments replieurs sont venus en contact avec l'extrémité du rouleau.
3. Dispositif selon l'une des revendications 1 ou 2, caractérisé en ce que chaque élément replieur (4) comporte vers son extrémité une partie articulée (34) faite pour être enfoncée dans le trou axial par le tampon.
4. Procédé pour envelopper dans un matériau d'emballage (2) une extrémité d'un rouleau ayant un trou axial (1'), ce matériau ayant été enroulé autour du rouleau de façon à former une rallonge cylindrique de longueur voisine du rayon du rouleau de matériau d'emballage qui dépasse de l'extrémité du rouleau, comprenant l'exécution au même poste des opérations suivantes:
a) on forme dans la rallonge des crêtes et des gorges alternées au moyen d'une série d'éléments replieurs (4) espacés circonférentiellement,
b) on fait subir au rouleau une rotation partielle relativement aux éléments replieurs (4) pour faire en sorte que les crêtes recouvrent les gorges, et
c) on enfonce des moyens du genre tampon (14) dans le trou axial du rouleau pour replier une partie de la rallonge dans ces trou et l'y maintenir, caractérisé en ce qu'il est prévu une série d'éléments intérieurs saillants (13) mobiles radialement destinés, en association avec les éléments replieurs (4) à assurer la formation correcte des crêtes et des gorges, et en ce que lès éléments saillants et les moyens du genre tampon sont montés sur un arbre axial commun (11) mobile axialement depuis une position dans laquelle les éléments saillants sont en contact avec la surface intérieure de la rallonge, jusqu'à une deuxième position dans laquelle les éléments saillants et le tampon sont dégagés de la rallonge, et ensuite jusqu'à une troisième position dans laquelle le tampon fait entrer ladite partie de la rallonge dans le trou axial.
EP78300342A 1977-09-05 1978-09-04 Dispositif pour envelopper les extrémités de rouleaux Expired EP0001171B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP105784/77 1977-09-05
JP10578477A JPS5440785A (en) 1977-09-05 1977-09-05 Device for wrapping end face of roll

Publications (2)

Publication Number Publication Date
EP0001171A1 EP0001171A1 (fr) 1979-03-21
EP0001171B1 true EP0001171B1 (fr) 1982-12-29

Family

ID=14416757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78300342A Expired EP0001171B1 (fr) 1977-09-05 1978-09-04 Dispositif pour envelopper les extrémités de rouleaux

Country Status (4)

Country Link
EP (1) EP0001171B1 (fr)
JP (1) JPS5440785A (fr)
DE (1) DE2862143D1 (fr)
SU (1) SU904509A3 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58125422A (ja) * 1981-12-14 1983-07-26 友和産業株式会社 金属コイル端面包装装置
JPH0794244B2 (ja) * 1987-01-07 1995-10-11 三菱重工業株式会社 耳折り装置
US5016430A (en) * 1989-02-08 1991-05-21 Tokyo Winder Co., Ltd. Crimping apparatus used in wrapping cylindrical objects
CN111645946B (zh) * 2020-06-09 2021-11-12 益阳将士象农业科技开发有限公司 一种芦菇培育扎袋系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52691A (en) * 1975-10-06 1977-01-06 Teruo Tanabe Method of collecting and preserving annelid
JPS52130984A (en) * 1976-04-26 1977-11-02 Toyo Jozo Co Ltd Novel cholineoxydase and method of preparing the same

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066414A (en) * 1933-05-25 1937-01-05 Redington Co F B Wrapping machine
US2110814A (en) * 1935-03-20 1938-03-08 Scott Paper Co Roll wrapping machine
US2363751A (en) * 1940-08-03 1944-11-28 Schultz Rudolph Henry Wrapping machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52691A (en) * 1975-10-06 1977-01-06 Teruo Tanabe Method of collecting and preserving annelid
JPS52130984A (en) * 1976-04-26 1977-11-02 Toyo Jozo Co Ltd Novel cholineoxydase and method of preparing the same

Also Published As

Publication number Publication date
SU904509A3 (ru) 1982-02-07
JPS5440785A (en) 1979-03-30
JPS5730726B2 (fr) 1982-06-30
EP0001171A1 (fr) 1979-03-21
DE2862143D1 (en) 1983-02-03

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