WO1994027812A1 - Machine a enrouler - Google Patents

Machine a enrouler Download PDF

Info

Publication number
WO1994027812A1
WO1994027812A1 PCT/GB1994/001147 GB9401147W WO9427812A1 WO 1994027812 A1 WO1994027812 A1 WO 1994027812A1 GB 9401147 W GB9401147 W GB 9401147W WO 9427812 A1 WO9427812 A1 WO 9427812A1
Authority
WO
WIPO (PCT)
Prior art keywords
mandrel
ejector
roll
path
corrugated paper
Prior art date
Application number
PCT/GB1994/001147
Other languages
English (en)
Inventor
Timothy Corben Morley
Original Assignee
Aston Packaging Limited
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 Aston Packaging Limited filed Critical Aston Packaging Limited
Priority to AU68013/94A priority Critical patent/AU6801394A/en
Publication of WO1994027812A1 publication Critical patent/WO1994027812A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C1/00—Making tubes or pipes by feeding at right angles to the winding mandrel centre line
    • B31C1/08—Accessories of machines therefor not otherwise provided for

Definitions

  • This invention relates to a winding machine, and in particular to a winding machine for corrugated paper, and to packaging pieces produced by the machine.
  • Product packaging pieces are used to protect the exposed outer surfaces of articles, particularly the sides and corners of rectangular products, both in the warehouse and during transit.
  • packaging pieces have a relatively short commercial life.
  • they should be of a material which is easily disposable after use.
  • they should be made from renewable or recycled materials to limit the consumption of natural resources.
  • Corrugated paper is often made from recycled waste paper. Since users are increasingly demanding materials which meet the requirements mentioned above, the more widespread use of formed corrugated paper in preference to other packaging materials, for instance the oil-based packaging materials such as polystyrene, is expected.
  • oil-based packaging materials such as polystyrene
  • formed corrugated paper such as angled corrugated paper of "L" section, is valued for its exceptional cushioning against repeated impacts, as well as its resistance to longitudinal crushing such as might occur if heavy articles with angled corner protection are stacked one upon another.
  • a packaging piece such as an edge protector can be made by winding corrugated paper on a rotatable mandrel to form a roll, removing the roll from the mandrel, and pressing the roll to the desired configuration.
  • the tips of the corrugations are typically painted with cold-setting adhesive prior to winding, and the roll is retained in the press until the adhesive has set whereby to provide a stable configuration.
  • the roll Following the winding of the corrugated paper into a roll of the required number of turns and thus of the required size, the roll has to be removed promptly from the mandrel, both to free the mandrel for another winding operation and to ensure that the roll can be transferred to the press before the adhesive has set.
  • the mandrel cannot be re-used (to wind another roll) until the ejector has completed or nearly completed its return stroke to the start condition, i.e. in the opposed direction to the ejection direction, to or towards the other side of the machine.
  • a winding machine for corrugated paper which includes a mandrel having a rotation axis and an ejector movable substantially parallel to the said rotation axis characterised in that the ejector has an ejector arm, and in that means are provided to move the ejector arm along a first path in one direction and along a second path spaced from the first path in the opposite direction.
  • the corrugated paper is single-faced with the corrugations painted with adhesive.
  • Both the first and second paths will be outside the mandrel outer diameter; the first path will be within the projected area of a wound roll and the second path will be outside that projected area.
  • both paths will be at a distance from the mandrel axis greater than the mandrel radius.
  • the first path will be aligned with a part of the annulus between the mandrel outer diameter and the outer diameter of the wound roll whereby the ejector arm will engage a part of the roll and strip it from the mandrel during movement along the first path; the second path will be clear both of the mandrel and of the paper guiding and/or supporting means.
  • the ejector has two arms, passing respectively in use to opposite sides of the mandrel; the arms are spaced apart a distance greater than the diameter of the mandrel.
  • the arms are part of a circle which in the ejection position of the ejector has its centre on the mandrel rotation axis.
  • the ejector is pivotally mounted for movement between a first position in which the arms are adapted to embrace the mandrel and a second position spaced from the mandrel, and if so the ejector will be in the first (ejection) position for roll ejection from the mandrel and in the second (clearance) position during return movement.
  • the ejector arm (or in another alternative embodiment both opposed ejector arms) are mounted on a carrier arm, the carrier arm following a single for-and-aft path during respective ejection and return strokes of the ejector arm, the ejector arm having a first position relative to the carrier arm and a second position relative to the carrier arm.
  • the ejector arm adopts the first position during roll ejection movement (from the carrier arm start position), and the second position during return movement to the start position.
  • the ejector arm is pivotally mounted to the carrier arm and has driving means to move it between the first and second positions; preferably there is a timing means controlling operation of the driving means in timed relation with the ejection and return strokes of the ejector arm(s).
  • the ejector has a part annular arm, and is slidably mounted upon a support bar, the support bar being pivotable so that the annular arm may be carried along a first path to eject the wound roll, and be carried along a second path during return movement to the start position.
  • the ejector arm carries an embracing plate, to engage part of a wound roll and prevent its unwinding during roll ejection.
  • a method of preparing a corrugated paper roll ready for pressing into a packaging piece which includes the steps of rotating a mandrel about an axis, guiding corrugated paper to be wound around the mandrel into a roll, stopping the mandrel rotation, moving an ejector arm along a first axial path in one direction to remove the wound roll from the mandrel, and moving the ejector arm along a second axial path spaced from the first path in the opposite direction concurrent with the guiding of fresh corrugated paper for winding about the mandrel.
  • Fig.l is a perspective view of part of a winding machine according to the invention.
  • Fig.2 is an end view of the ejector of Fig.l;
  • Fig.3 is an end view of an alternative embodiment of ejector mechanism according to the invention.
  • Fig.4 is a front view of a winding machine having the ejector mechanism of Fig.3.;
  • Fig.5 is a side view of part of a further alternative embodiment of ejector mechanism.
  • the corrugated paper 10 to be wound is single faced, with one layer 11 of plain paper bonded to a second layer 12 which is corrugated. As indicated in Fig.3, the spaces between the corrugations are engaged by teeth 20 of feed roller 21, which can be rotated about axle 22 in order that the web of paper is fed to the left as viewed in Fig.3, to be wound with second corrugated layer inwardly.
  • the paper 10 will have been presented from a supply roll (not shown) , having been withdrawn therefrom between a pair of nip rollers, one of which paints the corrugation tips with a cold-setting adhesive; in one embodiment the length of paper to form the wound roll will be cut from the supply only after it has been wound on the mandrel, and with the mandrel stationary to ensure a straight line cut parallel to the mandrel rotation axis, but in an alternative embodiment the paper lengths can be pre- cut from the supply, perhaps even before being painted with adhesive, and fed to the winding machine in sheet form.
  • the paper is moved by feed roller 21 (Fig.3) towards the mandrel 30, the size of mandrel 30 in a preferred embodiment being selected in accordance with the internal diameter and length of the roll of corrugated paper to be produced.
  • the mandrel has openings through which blades 32 can be projected in order to engage between corrugations whereby to help pull the paper around the mandrel.
  • the thickness of the paper roll is determined by the number of rotations of the mandrel (before the mandrel rotation is stopped, to permit the paper to be cut from the supply) , and so it is important also to use the blades to prevent or limit slippage between the paper and the mandrel.
  • the mandrel 30 has an length parallel to its rotational axis substantially less than that of the width of the machine and therefore also of the width of the paper roll to be formed, or which can be formed.
  • the mandrel 30 is mounted on mandrel shaft 34 which can be rotated by conventional means. Inside shaft 34 is a known operating mechanism (not shown) for the mandrel blades whereby the blades can be moved outwardly and inwardly of the mandrel openings.
  • the guides 40 which are uppermost as viewed are movable linearly (in this embodiment vertically) towards and away from the mandrel 30, whilst the guides 42 are pivotable by motor 44 and drive bar 46 about pivots 48 towards and away from the mandrel, though in an alternative embodiment the guides 42 are pivotable by a pneumatic cylinder, and in another alternative embodiment are movable away from the mandrel under their own weight.
  • the guides 40,42 are moved to a position adjacent the mandrel during winding of the paper, to assist in the paper guidance, but are withdrawn from that position whilst the "finished" wound roll is removed by ejector mechanism 50 (i.e. towards the left-hand side of the machine as viewed in Fig.l).
  • the ejector mechanism 50 comprises a part annulus 52 defining an ejector arm located around part of a mandrel and engageable with an end part of a wound roll, and a bent embracing plate 54.
  • Support bar 60 for ejector mechanism 50 is parallel to the rotation axis of the mandrel.
  • the ejector 50 is moved by conventional means (not shown) along support bar 60, towards the wound roll until the roll is engaged and moved by the part annulus 52.
  • the plate 54 partially embraces one end of the roll, which is pinched slightly between the plate 54 and the trays 62 when these are raised upon completion of the winding process.
  • the plate 54 and trays 62 support the free tail of the paper web, and maintain it in engagement with the wound roll, whilst the roll is ejected; the plate 54, and the trays 62, ensure that the wound roll does not become unrolled prior to the adhesive setting.
  • the part annulus 52 which has an internal diameter which is larger than the mandrel but within the projected area of the roll, engages the end of the roll and so pushes the roll off the mandrel, and in this embodiment into jaws 56.
  • Jaws 56 retain the wound roll preparatory to its placement in the subsequent pressing machine (not shown).
  • the cycle can be recommenced with the next piece of corrugated paper being urged towards the mandrel.
  • the support bar 60 is partially- rotated about pivots 64 by pneumatic cylinder 66, so that the ejector is moved away from the axis of the mandrel (clockwise as viewed in Fig.l), and in a preferred embodiment out of projected area of a finished or wound roll, so that the ejector may return to its rest position (as seen in Fig.l) without fouling paper 10 or hindering the winding of the subsequent roll.
  • pneumatic cylinder 66 is pivotted at its engagement 68 with the support bar, and also pivotted to the machine base at 70 so that the non-linear motion of the pivot 68 may be accomodated.
  • different methods for moving the support bar 60 may be usefully employed.
  • Fig.3 an alternative ejector mechanism 150 is shown.
  • the paper guides 140,142 are of differing design, but operate to fulfil the same function as the guides 40,42 of Fig.l.
  • the ejector 150 of Fig.3 comprises two interconnected arms or jaws 180,182, each part circular and together substantially of horseshoe shape. Arms 180,182 are carried by a leg 184 mounted upon pivot bar 186. Pivot bar 186 runs parallel to the rotation axis of the mandrel 30 (see Fig.4). Pivoting movement (clockwise as viewed) of leg 184 away from the inoperative position of Fig.3 to a position in which the jaws or a part thereof are adjacent to wound roll 90 is effected by rack 192 which, under the control of motor 194, drives the pinion 196 attached to the leg 184; movement in the angular direction towards the mandrel is restricted by engagement of leg 184 with adjustable abutment 198.
  • the spacing between arms 180,182 is less than the roll 90 finished diameter, but greater than the mandrel 30 diameter, so that when in the ejection position and moved parallel to the mandrel axis the arms engage the roll 90 but remain spaced from the mandrel 30.
  • the leg 184 Upon completion of the ejector stroke, the leg 184 is pivotally withdrawn to the position seen in Fig.3. Even if the guides 140,142 have not been moved towards the mandrel from the position shown, the guides are positioned so that the arms 180,182 can still pass thereby during their return (axial) movement to the other side of the machine, back to the start position of Figs.3,4. Thus the ejector can be moved along a first path during roll transfer movement, and along a second path, spaced further from the mandrel axis, during ejector return movement.
  • Fig.5 shows part of a further alternative ejector mechanism 250.
  • the roll engaging arms 200,202 are separately and pivotably mounted to a bracket 204.
  • the bracket 204 is secured to a hollow shaft 206.
  • operating rod 210 Within hollow shaft 206 is mounted operating rod 210, which is coupled via connecting rods 212 to the arms 200,202.
  • the coupling is such that axial movement of the operating rod 210 along the shaft 206 by known means (not shown) will cause the arms to move (pivot) respectively together and apart.
  • the ejector may be repositioned at the extremes of its lateral (axial) movement by engagement with ramps or other passive means whereby to cause the ejector to adopt either its first path or its second path, under the influence of gravity for example.
  • ramps or other passive means whereby to cause the ejector to adopt either its first path or its second path, under the influence of gravity for example.
  • alternative designs of ejector are possible, such as an ejector having a single pivotting ejector arm, provided that the arm is shaped so as to engage a wound roll sufficiently to ensure its axial removal.
  • an ejector can be used wherein movement out of the projected area of the roll is effected by pivotting about an axis other than an axis parallel to the mandrel axis (usually horizontal), such as pivotting about a vertical axis.
  • One sequence of operations for a winding machine according to the invention is:

Abstract

L'invention se rapporte à une machine à enrouler, en particulier à une machine à enrouler du papier ondulé, ainsi qu'à des éléments d'emballage produits par cette machine. Une machine à enrouler du papier ondulé comprend un mandrin (30) présentant un axe de rotation, et un éjecteur (50) pouvant être déplacé de manière sensiblement parallèle audit axe de rotation, et se caractérise en ce que l'éjecteur comprend un bras (52) éjecteur et en ce que des moyens sont prévus pour déplacer ce dernier (52) le long d'une première trajectoire, dans une direction, et le long d'une seconde trajectoire, espacée de la première, dans la direction opposée. L'invention se rapporte également à un procédé de production d'un rouleau de papier ondulé prêt à être comprimé sous forme d'un élément d'emballage, et qui consiste à tourner un mandrin (30) autour d'un axe, à guider le papier ondulé (10) pour qu'il s'enroule autour du mandrin sous forme d'un rouleau, à interrompre la rotation du mandrin, à déplacer le bras (52) éjecteur le long d'une première trajectoire axiale en une direction afin d'enlever le rouleau du mandrin, et à déplacer le bras le long d'une seconde trajectoire axiale espacée de la première, dans la direction opposée, tandis qu'une nouvelle bande de papier ondulé est simultanément guidée pour être enroulée autour du mandrin.
PCT/GB1994/001147 1993-05-28 1994-05-26 Machine a enrouler WO1994027812A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU68013/94A AU6801394A (en) 1993-05-28 1994-05-26 Winding machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939311072A GB9311072D0 (en) 1993-05-28 1993-05-28 Winding machine
GB9311072.4 1993-05-28

Publications (1)

Publication Number Publication Date
WO1994027812A1 true WO1994027812A1 (fr) 1994-12-08

Family

ID=10736304

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1994/001147 WO1994027812A1 (fr) 1993-05-28 1994-05-26 Machine a enrouler

Country Status (3)

Country Link
AU (1) AU6801394A (fr)
GB (1) GB9311072D0 (fr)
WO (1) WO1994027812A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2163265A (en) * 1933-07-01 1939-06-20 Bartlett Arkell Machine for manufacturing bag tubes
GB513979A (en) * 1937-09-23 1939-10-26 Gardner Richardson Co Improvements in or relating to method and machine for forming hollow tubular bodies such as containers from paper or like material
US2357814A (en) * 1943-05-03 1944-09-12 American Can Co Machine for making fiber containers
US3073218A (en) * 1962-05-15 1963-01-15 Star Paper Tube Inc Apparatus for making convolute paper tubes and method
US3190195A (en) * 1963-05-27 1965-06-22 Eppler Machine Works Inc John Convolute tube making machine
EP0037805A1 (fr) * 1980-03-31 1981-10-14 N.W. Landegrens Mek. Verkstad AB Dispositif à découper
GB2097325A (en) * 1981-04-29 1982-11-03 Aston Packaging Ltd Making packaging elements
FR2525527A1 (fr) * 1982-04-22 1983-10-28 Amesland Norbert Installation pour la fabrication de tubes en carton, cylindriques, carres, rectangulaires, ou autres, coupes en longueur

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2163265A (en) * 1933-07-01 1939-06-20 Bartlett Arkell Machine for manufacturing bag tubes
GB513979A (en) * 1937-09-23 1939-10-26 Gardner Richardson Co Improvements in or relating to method and machine for forming hollow tubular bodies such as containers from paper or like material
US2357814A (en) * 1943-05-03 1944-09-12 American Can Co Machine for making fiber containers
US3073218A (en) * 1962-05-15 1963-01-15 Star Paper Tube Inc Apparatus for making convolute paper tubes and method
US3190195A (en) * 1963-05-27 1965-06-22 Eppler Machine Works Inc John Convolute tube making machine
EP0037805A1 (fr) * 1980-03-31 1981-10-14 N.W. Landegrens Mek. Verkstad AB Dispositif à découper
GB2097325A (en) * 1981-04-29 1982-11-03 Aston Packaging Ltd Making packaging elements
FR2525527A1 (fr) * 1982-04-22 1983-10-28 Amesland Norbert Installation pour la fabrication de tubes en carton, cylindriques, carres, rectangulaires, ou autres, coupes en longueur

Also Published As

Publication number Publication date
AU6801394A (en) 1994-12-20
GB9311072D0 (en) 1993-07-14

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