EP0474094B1 - Appareil pour enrouler une feuille d'enveloppement autour d'un rouleau - Google Patents

Appareil pour enrouler une feuille d'enveloppement autour d'un rouleau Download PDF

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Publication number
EP0474094B1
EP0474094B1 EP19910114348 EP91114348A EP0474094B1 EP 0474094 B1 EP0474094 B1 EP 0474094B1 EP 19910114348 EP19910114348 EP 19910114348 EP 91114348 A EP91114348 A EP 91114348A EP 0474094 B1 EP0474094 B1 EP 0474094B1
Authority
EP
European Patent Office
Prior art keywords
wrapping sheet
roll
web roll
winding
chucks
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 - Lifetime
Application number
EP19910114348
Other languages
German (de)
English (en)
Other versions
EP0474094A1 (fr
Inventor
Kiyohumi Yamamoto
Hiroshi Maeda
Susumi Suzuki
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 JP3034180A external-priority patent/JP2640579B2/ja
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Publication of EP0474094A1 publication Critical patent/EP0474094A1/fr
Application granted granted Critical
Publication of EP0474094B1 publication Critical patent/EP0474094B1/fr
Anticipated expiration legal-status Critical
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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
    • 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 an apparatus for winding a wrapping sheet around the outer peripheral surface of a roll.
  • a wrapping sheet is wound around the outer peripheral surface of a roll by causing a pair of chucks to abut against respective end faces of the roll and rotating them as disclosed, for instance, in Japanese Unexamined Patent Publication No. 49(1974)-27390, disclosing a wrapping sheet winding apparatus according to the preamble of claim 1. Further, generally, the wrapping sheet is positioned relative to the roll so that marginal portion of the wrapping sheet extends beyond the side of the roll and then wound around the article in the manner described above in order to wrap also the end faces of the article.
  • the wrapping sheet is apt to be displaced relative to the roll during the winding operation, and irregular folds or creases are frequently produced in the marginal portions of the wrapping sheet.
  • the primary object of the present invention is to provide a wrapping sheet winding apparatus in which the wrapping sheet can be prevented from being displaced relative to the roll during the winding operation and production of irregular folds and creases in the marginal portions of the wrapping sheet can be suppressed and
  • the marginal portions of the wrapping sheet extending beyond the sides of the roll are pulled against the outer peripheral surfaces of the chucks under suction force applied to the suction holes during winding operation, and accordingly the wrapping sheet can be prevented from being displaced relative to the roll during the winding operation and production of irregular folds and creases in the marginal portions of the wrapping sheet can be suppressed.
  • the slack can be removed by pulling outward the wrapping sheet by moving outward the suction head portions of the chucks away from the chuck head portions.
  • the wrapping sheet can be prevented from being displaced relative to the roll during the winding operation and production of irregular folds and creases in the marginal portions of the wrapping sheet can be suppressed even if the lengths and/or diameters of the rolls fluctuate.
  • Such arrangement is especially effective for wrapping sheets which are relatively flexible.
  • a wrapping sheet winding apparatus 10 in accordance with the present invention winds a wrapping sheet 8 around a web roll 6 which comprises a tubular core 2 and a web 4 of a predetermined length wound around the core 2.
  • the apparatus 10 comprises a wrapping sheet supply system 12 for supplying a wrapping sheet 8 of a predetermined size, a web roll supply system (not shown) for supplying the web roll 6 and a sheet winding system 14 for winding the wrapping sheet 8 around the web roll 6.
  • the wrapping sheet supply system 12 includes a cutter section 16 which cuts the wrapping sheet 8' in continuous length into a wrapping sheet 8 of a predetermined length longer than the width of the web 4 by a predetermined length, and a conveyor section 18 which clamps the wrapping sheet 8 and conveys it to the position shown in Figure 1 where one leading edge portion 8a of the wrapping sheet 8 rests on a pair of support rollers 20 of the sheet winding system 14.
  • Reference numeral 18a denotes a clamp member which clamps the leading end of the wrapping sheet 8.
  • the web roll supply system places the web roll 6 on the leading edge portion 8a of the wrapping sheet 8 resting on the support rollers 20 go that the wrapping sheet 8 extends beyond each side face of the web roll 6.
  • the sheet winding system 14 has a pair of cylindrical chucks 22 which are adapted to be engaged with the core 2 of the web roll 6 to rotate the web roll 6.
  • Each chuck 22 has an outer diameter smaller than the outer diameter of the web roll 6 (e,g., 1/2 to 11/12 of the outer diameter of the web roll 6), and a plurality of suction holes 24 are formed on the outer peripheral surface of the chuck 22.
  • the chucks 22 are supported by a threaded rod 26 spaced from each other with their rotational axes in alignment With each other.
  • the web roll 6 is placed on the wrapping sheet 8 in a position where the central axis of the web roll 6 is in alignment with the rotational axes of the chucks 22 as shown in Figure 2a.
  • Each chuck 22 has a tapered head portion 22a and is supported by way of an air cylinder 22b to be driven toward and away from the web roll 6 by the cylinder 22b.
  • the chucks 22 are driven toward the web roll 6 and the tapered head portions 22a thereof are brought into engagement with the ends of the core 2 as shown in Figure 2b. At this time the outer peripheral surfaces of the chucks 22 are opposed to the wrapping sheet 8 at a small distance therefrom.
  • the sheet winding system 14 further includes a blower 28 disposed near the support rollers 20 ( Figure 3), and the blower 28 blows air to the leading edge portion 8a of the wrapping sheet 8 from below so that the leading portion 8a is pressed against the outer peripheral surface of the web roll 6 as shown in Figure 3.
  • suction force is fed to the suction holes 24 of the chucks 22 through suction pipes 30, whereby marginal portions 8b which extend beyond the sides of the web roll 6 are pulled against the outer peripheral surfaces of the chucks 22 under suction force.
  • the chucks 22 are smaller than the web roll 6 in diameter, the marginal portions 8b are pulled outward by the suction force, tightly fixing the leading portion 8a to the wrapping sheet itself.
  • the chucks 22 are driven by belts 32 as shown in Figure 2c, whereby the web roll 6 is rotated and the wrapping sheet 8 is wound around the web roll 6. Since the marginal portions 8b are held on the outer peripheral surface of the chucks 22 under the suction force, the wrapping sheet 8 cannot be displaced relative to the web roll 6 during the winding operation. Further, since the wrapping sheet 8 is kept under tension during the winding operation due to the suction force applied to the marginal portions 8b and leading portion 8a as described above, irregular folds or creases cannot be produced in the leading portion 8a or the marginal portions 8b.
  • the chucks 22 are substantially equal to the web roll 6 in diameter in order to smoothly wind the wrapping sheet 8 around the web roll 6.
  • the wrapping sheet winding apparatus 11 comprises a wrapping sheet supply system 13 for supplying the wrapping sheet 8, a web roll supply system 17 for supplying the web roll 6 and a sheet winding system 15 for winding the wrapping sheet 8 around the web roll 6.
  • the wrapping sheet supply system 13 includes a cutter section (not shown) which cuts the wrapping sheet 8' in continuous length into a wrapping sheet 8 of a predetermined length longer than the width of the web 4 by a predetermined length, and a conveyor section 19 which conveys it to the position shown in Figure 4a.
  • the conveyor section 19 comprises a pair of conveyor rollers 42 and a sheet drawing mechanism 40 which clamps the leading end of the wrapping sheet 8 conveyed by the conveyor rollers 42 and draws the wrapping sheet 8 to a winding position as shown in Figure 6a.
  • the sheet winding system 15 comprises a pair of cylindrical chucks 21 and a winding roller 38 which is longer than the web roll 6 and is movable toward and away from the web roll 6 held by the chucks 21 as will be described later.
  • Each chuck 21 comprises a chuck head portion 25 which is adapted to be engaged with the core 2 of the web roll 6 and a suction head portion 23 provided with suction holes 24 on the outer peripheral surface thereof.
  • Each chuck 21 is supported on an up-and-down frame member 36 by way of a cylinder member so that the central axes of the chucks are in alignment with each other.
  • the chucks 21 are driven by the cylinder member 21a toward and away from the each other.
  • the suction head portion 23 of each chuck 21 is smaller in diameter than the web roll 6. Further the suction head portion 23 of each chuck 21 is movable toward and away from the chuck head portion 25 along the central axis of the chuck 21.
  • the web roll supply system 17 comprises a bucket conveyor 32 which feeds the web rolls 6 one by one.
  • the up-and-down frame member 36 moves downward to a position where the chucks 21 are aligned with the web roll 6, and the chucks 21 are driven toward the web roll 6 and brought into engagement with the core 2 of the web roll 6, thereby holding the web roll 6 therebetween. Thereafter, the up-and-down frame member 36 moves upward to bring the web roll 6 to the position shown in Figure 4a and Figure 6a, where the web roll 6 is positioned close to the wrapping sheet 8 hanging from the conveyor rollers 42.
  • Figure 5a shows the chucks 21, web roll 6 and the winding roller 38 in this state.
  • the chucks 21 are rotated in the direction reverse to the winding direction to bring the leading edge of the wrapping sheet 8 on the contact line of the roller 38 and the web roll 6 as shown in Figure 5b.
  • the suction head portions 23 of the chucks 21 are opposed to marginal portions 8b of the leading edge portion 8a of the wrapping sheet 8 at a small distance therefrom.
  • each chuck 21 When the outer diameter of each chuck 21 is substantially equal to the outer diameter of the web roll 6 having a minimum diameter, all the web rolls 6 including wide range of outer diameters can be wrapped with the wrapping sheet 8 with a better appearance by sliding the suction head portions 23 by an appropriate distance.
  • the wrapping sheet winding apparatus in accordance with the present invention is advantageous in that the wrapping sheet 8 is firmly held on the chucks and less air is trapped in the wrapping sheet and accordingly the wrapping sheet can be tightly wound around the web roll.

Landscapes

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

Claims (4)

  1. Appareil (11) d'enroulement d'une feuille d'enveloppe, destiné à enrouler une feuille (8) d'enveloppe autour d'un rouleau (6), comprenant une paire d'organes (21, 22) à mandrin coopérant avec un noyau (2) du rouleau (6) afin qu'il soit entraîné et que le rouleau (6) tourne lors de l'enroulement de la feuille d'enveloppe (8) qui est disposée sur le rouleau (6) d'une manière telle que les parties marginales (8b) de la feuille d'enveloppe (8) dépassent des faces latérales respectives du rouleau (6), caractérisé en ce que chacun des organes (21) à mandrin comprend une partie (25) de tête de mandrin coopérant avec le noyau (2) et une partie (23) de tête d'aspiration ayant des trous d'aspiration (24), la partie de tête d'aspiration (23) étant mobile en translation par rapport à la partie (25) de tête de mandrin et au rouleau (6) le long d'un axe de rotation des organes (21) à mandrin.
  2. Appareil (11) d'enroulement d'une feuille d'enveloppe selon la revendication 1, caractérisé en ce que la partie (23) à tête d'aspiration a un diamètre inférieur à celui du rouleau (6) d'une bande continue.
  3. Appareil (11) d'enroulement d'une feuille d'enveloppe selon la revendication 1 ou 2, caractérisé par un vérin pneumatique (22b) destiné à déplacer chacun des organes (21) à mandrin afin qu'ils se rapprochent et s'écartent du rouleau (6).
  4. Appareil (11) d'enroulement d'une feuille d'enveloppe selon l'une au moins des revendications 1 à 3, caractérisé par un cylindre (38) d'enroulement que est mobile afin qu'il se rapproche et s'écarte du rouleau (6) de bande.
EP19910114348 1990-08-27 1991-08-27 Appareil pour enrouler une feuille d'enveloppement autour d'un rouleau Expired - Lifetime EP0474094B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP22478890 1990-08-27
JP224788/90 1990-08-27
JP34180/91 1991-02-28
JP3034180A JP2640579B2 (ja) 1990-08-27 1991-02-28 包装シート巻付装置

Publications (2)

Publication Number Publication Date
EP0474094A1 EP0474094A1 (fr) 1992-03-11
EP0474094B1 true EP0474094B1 (fr) 1995-08-23

Family

ID=26372969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910114348 Expired - Lifetime EP0474094B1 (fr) 1990-08-27 1991-08-27 Appareil pour enrouler une feuille d'enveloppement autour d'un rouleau

Country Status (1)

Country Link
EP (1) EP0474094B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1284528B1 (it) * 1996-09-13 1998-05-21 Bf Engineering S R L Impianto di imballaggio coils

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2893190A (en) * 1955-07-06 1959-07-07 Williams & Wilson Ltd Roll wrapping
US3075325A (en) * 1959-12-08 1963-01-29 Hauni Werke Koerber & Co Kg Method and apparatus for feeding wrapping material into a wrapping machine
US3875723A (en) * 1973-05-21 1975-04-08 Conwed Corp Wrapping apparatus for cylindrical shapes

Also Published As

Publication number Publication date
EP0474094A1 (fr) 1992-03-11

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