EP0223632B1 - Unwinding device for bobbins - Google Patents

Unwinding device for bobbins Download PDF

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Publication number
EP0223632B1
EP0223632B1 EP86402120A EP86402120A EP0223632B1 EP 0223632 B1 EP0223632 B1 EP 0223632B1 EP 86402120 A EP86402120 A EP 86402120A EP 86402120 A EP86402120 A EP 86402120A EP 0223632 B1 EP0223632 B1 EP 0223632B1
Authority
EP
European Patent Office
Prior art keywords
reel
web
full
applicator
rollers
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
EP86402120A
Other languages
German (de)
French (fr)
Other versions
EP0223632A1 (en
Inventor
Daniel Flament
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.)
Materiels Equipements Graphiques
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Materiels Equipements Graphiques
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Filing date
Publication date
Application filed by Materiels Equipements Graphiques filed Critical Materiels Equipements Graphiques
Priority to AT86402120T priority Critical patent/ATE48117T1/en
Publication of EP0223632A1 publication Critical patent/EP0223632A1/en
Application granted granted Critical
Publication of EP0223632B1 publication Critical patent/EP0223632B1/en
Expired 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
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1873—Support arrangement of web rolls with two stationary roll supports carrying alternately the replacement and the expiring roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1805—Flying splicing, i.e. the expiring web moving during splicing contact
    • B65H19/181—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll
    • B65H19/1815—Flying splicing, i.e. the expiring web moving during splicing contact taking place on the replacement roll the replacement web being stationary prior to splicing contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/10—Changing the web roll in unwinding mechanisms or in connection with unwinding operations
    • B65H19/18—Attaching, e.g. pasting, the replacement web to the expiring web
    • B65H19/1857—Support arrangement of web rolls
    • B65H19/1863—Support arrangement of web rolls with translatory or arcuated movement of the roll supports

Definitions

  • the invention relates to a reel unwinder for ensuring the continuous feeding of an endless belt comprising, on a frame two axes for two reels, one in the course of unwinding, the other, after removal of the rest of reel exhausted, receiving a full reel, means for maintaining a suitable web tension, means acting on its axis to launch the full reel at the linear unwinding speed, the end of the full reel receiving a tape of glue , means for applying the strip from the spool near exhaustion on the full reel so as to effect the bonding between the strips, and knives for cutting the strip coming from the spent reel.
  • Coil unwinders of this type known to date are generally provided with a rotating cradle which carries the two axes of the two coils and which can thus, when the time comes, approach the bodies which ensure bonding, this This takes place in the same area of the device.
  • Such an arrangement has the major drawback that the mobile assembly constituted by the cradle and the coils is extremely heavy. In addition, it is out of balance when it is moved, since one of the coils is full and the other almost empty.
  • unwinders of this known type have applicator elements mounted on a mobile assembly capable of placing these elements in the active position alternately in the vicinity of each full reel (see DE-A-2 755 886).
  • the object of the invention is to remedy these drawbacks and relates to a reel unwinder as defined in claim 1.
  • the mobile assembly is a carriage which performs a translational movement along slides perpendicular to the plane of symmetry of the two axes.
  • the mobile assembly consists exclusively of the carriage, the two applicator rollers and one or two guide rollers, which allows it to be maneuvered quickly and easily using light mechanical means.
  • the invention thus makes it possible to equip a continuous supply with a wide range of reel unwinders, including some for which such supply has not been profitable to date, whether for example small unwinders or relatively slow speed unwinders.
  • the applicator rollers are rollers and these rollers and the guide roller or rollers are carried by two uprights to form a symmetrical frame provided with two adjacent axes or better in the extension of those of the applicator rollers, axes resting in cutouts integral with the carriage and one of which is held in each of the two active positions to play the role of axis of rotation by stops integral with the frame, the approach and contact control acting on the symmetrical frame to ensure the displacement of the other axis and therefore of the other applicator roller and guide rollers.
  • Such a symmetrical frame makes it possible to provide only one approach command and only one contact command instead of two. If it is known that these commands conventionally comprise at least one actuator for the approach and in general two actuators for the contact, it is easily understood that this further results in economy of manufacture and greater reliability.
  • the various bodies of the unwinder being symmetrical with respect to a plane
  • the axes of the knives can also be fixed and arranged on either side of this plane of symmetry.
  • FIG. 1 shows a reel unwinder for a printing machine consisting very schematically of a frame 1 which supports, by brackets 2 and 3, two superposed axes 4 and 5 receiving two reels 6 and 7.
  • the frame 1 also receives a carriage 8 movable parallel to the plane containing the axes 4 and 5 and a conventional equipment for outputting the strip composed of two fixed rollers 9 and 10 and a roller 11 subjected to the action of a elastic member not shown.
  • the carriage 8 carries a symmetrical articulated frame consisting of two uprights 12 and 13 of which only one 12 is visible in the figure, two applicator rollers 14 and 15 and a guide roller 16.
  • the carriage 8 is in the high position and the frame formed by the applicator rollers 14 and 15, the uprights 12 and 13 and the guide roller 16 in the inactive position against the carriage 8.
  • the operating phase b shows the coil 6 being exhausted while the coil 7, which was on standby, is rotated by control of its axis 5 so that the peripheral speeds of the two coils are synchronized.
  • phase c the last turns of the coil 6 take place and the bonding operation is prepared.
  • the carriage 8 has been placed in the low position and the articulated frame carrying the applicator rollers 14, 15 has been rotated about an axis coincident with that of the applicator roller 16.
  • the strip 21 s' presses on the guides 19 and 20 of the knives and on the applicator roller 14 which is in the approach position in the vicinity of the coil 7, before reaching the guide roller 16.
  • Phase d is the bonding phase of the end of the strip 21 coming from the now empty reel 6, with the first turn of the reel 7. This bonding operation is carried out in a conventional manner using double-sided adhesive tape 22 carried by this first turn which is slightly separated from the next.
  • Phase f corresponds to the unwinding of the coil 7 during which the axis 4 has been loaded with a new full coil 6 ′.
  • phase g When in phase g the coil 7 begins to run out, the axis 4 is rotated and the coil 6 'is launched at synchronous speed.
  • phase h for which the coil 7 unwinding its last turns a new bonding operation is prepared.
  • the carriage 8 is placed in the high position and the symmetrical articulated frame in the approach position by rotation, this time around an axis coincident with that of the applicator roller 14.
  • the strip 23 is unwound along the knife guides 19 and 20, the applicator roller in the approach position 15, the guide roller 16 and the three rollers 9, 10, 11 of the output equipment.
  • the reel 6 ′ is also provided with a double-sided adhesive tape 22 ′, so that when, during phase i the applicator roller 15 is brought into contact position, the strip 23 sticks to the strip 24 of this coil 6 '.
  • the knife 18 which is placed in the active position and which ensures, as before, the cutting of the strip 23 coming from the now empty reel 7.
  • Figure 2 shows on a larger scale the general structure of the unwinder.
  • the frame 1 here consisting of four uprights, two of which are visible 25 and 26, a base 27 and an upper spacer 28 as well as the brackets 2 and 3 which carry the axes 4 and 5.
  • the unwinder being shown in its phase d, the axis 4 carries a coil 6 being exhausted and the axis 5 carries a full coil 7.
  • the motors 29 and 30 as well as the flywheels 31 and 32 are used to move the coils laterally.
  • the outgoing assembly 9, 10, 11 is carried by the uprights and the spacers 26, 28 and the knives 17, 18 with their support 19, 20, flanked by a protective cross member 33, by the uprights 25.
  • the mobile carriage 8 and the articulated symmetrical frame carrying the rollers 14, 15 and 16 visible in FIG. 2 are shown in more detail in FIGS. 3 and 4. It will be noted in this connection that the applicator rollers 14 and 15 carry a flexible coating.
  • the upright 26 and its symmetrical 34 carry two vertical racks 35, 36 engaged with two coaxial toothed wheels 37, 38 and four rollers 39, 40, 41, 42. These two toothed wheels and these four rollers are carried by two lateral flanges 43 , 44 which constitute, with suitable spacers 45, 46, the carriage 8.
  • this carriage can be moved in vertical translation by a motor 47 engaged by the reduction gear 48 with the shaft 49 which carries the two toothed wheels 37 , 38.
  • the spacer 45 supports the pivot 50 of a central approach cylinder 51 engaged with an arm 52 itself secured to a sleeve 53 threaded on the spacer 46 and free to rotate.
  • the socket 53 carries, in the vicinity of its ends, two symmetrical arms 54, 55 articulated on two contact jacks 56, 57 themselves engaged with the axis 58 of the guide roller 16.
  • the axis 58 and the axes 59 and 60 of the applicator rollers 14, 15 are journalled on the uprights 12 and 13.
  • the axes 59 and 60 of the applicator rollers 14, 15 protrude relative to the uprights 12 and 13 so as to engage in integral bearings for part of the carriage and for part of the frame.
  • the axis end 61 of the applicator roller 15 is housed in a cutout 62 of a block 63 secured to the flange 43 of the carriage, and when the carriage is in the low position, this same axis end 61 rests in a seat 64 of a stop 65 integral with the upright 26 of the frame.
  • a stop 65 integral with the upright 26 of the frame.
  • the articulated frame can undergo the rotational movement which is imposed on it by the jack 51 to move into the approach position then by the jacks 56, 57 to pass into the contact position around the end of the axis 61 and its symmetrical 61 'retained by the stops 65, while the end of the axis 66 located at the end of the axis 59 of the roller 14 is free in the same way as its symmetrical 66 '.
  • the motor 47 ensures the alternating movement of ascent and descent of the carriage 8 which advances by means of the toothed wheels 37, 38 and the rollers 39 to 42 along the racks 35, 36.
  • the single approach cylinder 51 ensures, by the through the arm 52 of the sleeve 53, the arms 54, 55 and the jacks in the retracted position 56 and 57, the approach movement of the applicator roller 14 around the axis 61, 61 ′ when the carriage is in the low position and of the applicator roller 15 around the axis 66, 66 'when the carriage is in the high position.
  • the cylinders 56, 57 then ensure the contact movement for one or the other of the applicator rollers, followed by a rotation of the knives 17, 18 around the axis of its support 19 or 20. It will be noted that the members control of these two knives 17, 18 have not been described because they are also perfectly conventional and widely used in unwinders known to date.

Landscapes

  • Replacement Of Web Rolls (AREA)
  • Secondary Cells (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Unwinding Of Filamentary Materials (AREA)

Abstract

Reel unwinder (6, 7) for ensuring the continuous supply of an endless web (21), comprising, on a stand (25 to 28), two spindles (4, 5) for two reels, one in course of being unwound and the other, after the removal of the residue of used-up reel, receiving a full reel, means of maintaining a suitable web tension (9, 10, 11), means acting on its spindle to accelerate the full reel to the linear unwinding speed, the end of the full reel receiving the strip of adhesive, means of laying the web from the nearly used-up reel onto the full reel in order to effect bonding between the webs, and knives (17, 18) for cutting the web coming from the used-up reel. The laying means consist of two applicator elements (14, 15) arranged on either side of at least one guide roller (16) on a movable assembly (8) designed to put these elements and rollers into the active position near each full reel (7), and of a control (51, 56) which ensures the approach to and then the contact with the full reel for that applicator element (14, 15) located on the other side of the web (21) coming from the reel being unwound. The movement of the carriage is preferably a translational movement.

Description

L'invention porte sur un dérouleur de bobines pour assurer l'alimentation en continu d'une bande sans fin comprenant, sur un bâti deux axes pour deux bobines, l'une en cours de déroulement, l'autre, après enlèvement du reste de bobine épuisée, recevant une bobine pleine, des moyens de maintien d'une tension de bande convenable, des moyens agissant sur son axe pour lancer la bobine pleine à la vitesse linéaire de déroulement, l'extrémité de la bobine pleine recevant un ruban de colle, des moyens pour appliquer la bande de la bobine près de l'épuisement sur la bobine pleine de façon à effectuer le collage entre les bandes, et des couteaux pour couper la bande provenant de la bobine épuisée.The invention relates to a reel unwinder for ensuring the continuous feeding of an endless belt comprising, on a frame two axes for two reels, one in the course of unwinding, the other, after removal of the rest of reel exhausted, receiving a full reel, means for maintaining a suitable web tension, means acting on its axis to launch the full reel at the linear unwinding speed, the end of the full reel receiving a tape of glue , means for applying the strip from the spool near exhaustion on the full reel so as to effect the bonding between the strips, and knives for cutting the strip coming from the spent reel.

Les dérouleurs de bobines de ce type connus à ce jour sont en général pourvus d'un berceau rotatif qui porte les deux axes des deux bobines et que l'on peut ainsi, le moment venu, approcher des organes qui assurent le collage, celui-ci s'effectuant dans la même zone de l'appareil.Coil unwinders of this type known to date are generally provided with a rotating cradle which carries the two axes of the two coils and which can thus, when the time comes, approach the bodies which ensure bonding, this This takes place in the same area of the device.

Une telle disposition présente l'inconvénient majeur que l'ensemble mobile constitué par le berceau et les bobines est extrêmement lourd. De plus, il est en déséquilibre au moment où on le déplace, puisque l'une des bobines est pleine et l'autre presque vide.Such an arrangement has the major drawback that the mobile assembly constituted by the cradle and the coils is extremely heavy. In addition, it is out of balance when it is moved, since one of the coils is full and the other almost empty.

Il en résulte la nécessité de mettre en oeuvre des moyens mécaniques extrêmement puissants, eux aussi lourds et encombrants, au détriment du prix de revient des dérouleurs et de leur facilité d'utilisation.This results in the need to use extremely powerful mechanical means, which are also heavy and bulky, to the detriment of the cost price of the unwinders and their ease of use.

D'autres dérouleurs de ce type connus présentent des éléments applicateurs montés sur un ensemble mobile apte à placer ces éléments en position active alternativement au voisinage de chaque bobine pleine (voir DE-A-2 755 886).Other unwinders of this known type have applicator elements mounted on a mobile assembly capable of placing these elements in the active position alternately in the vicinity of each full reel (see DE-A-2 755 886).

L'invenfion a pour objet de remédier à ces inconvénients et porte sur un dérouleur de bobines tel que défini dans la revendication 1.The object of the invention is to remedy these drawbacks and relates to a reel unwinder as defined in claim 1.

De préférence, pour assurer alternativement la mise en position active au voisinage de chaque bobine pleine, l'ensemble mobile est un chariot qui effectue un mouvement de translation le long de glissières perpendiculaires au plan de symétrie des deux axes.Preferably, to alternately ensure the active position in the vicinity of each full coil, the mobile assembly is a carriage which performs a translational movement along slides perpendicular to the plane of symmetry of the two axes.

On conçoit que grâce à cette disposition les axes des bobines sont fixes. En outre, l'équipage mobile est exclusivement constitué du chariot, des deux rouleaux applicateurs et d'un ou deux rouleaux guides, ce qui permet de le manoeuvrer rapidement et aisément en faisant appel à des moyens mécaniques légers.It is understood that thanks to this arrangement the axes of the coils are fixed. In addition, the mobile assembly consists exclusively of the carriage, the two applicator rollers and one or two guide rollers, which allows it to be maneuvered quickly and easily using light mechanical means.

L'invention permet ainsi d'équiper d'une alimentation en continu une large gamme de dérouleurs de bobines, y compris certains pour lesquels une telle alimentation n'était pas rentable jusqu'à ce jour, qu'il s'agisse par exemple de petits dérouleurs ou de dérouleurs à vitesse relativement faible.The invention thus makes it possible to equip a continuous supply with a wide range of reel unwinders, including some for which such supply has not been profitable to date, whether for example small unwinders or relatively slow speed unwinders.

Dans un mode de réalisation particulièrement avantageux de l'invention, les rouleaux applicateurs sont des rouleaux et ces rouleaux et le ou les rouleaux guides sont portés par deux montants pour former un cadre symétrique pourvu de deux axes voisins ou mieux dans le prolongement de ceux des rouleaux applicateurs, axes reposant dans des découpes solidaires du chariot et dont l'un est maintenu dans chacune des deux positions actives pour jouer le rôle d'axe de rotation par des butées solidaires du bâti, la commande d'approche et de contact agissant sur le cadre symétrique pour assurer le déplacement de l'autre axe et donc de l'autre rouleau applicateur et des rouleaux guides.In a particularly advantageous embodiment of the invention, the applicator rollers are rollers and these rollers and the guide roller or rollers are carried by two uprights to form a symmetrical frame provided with two adjacent axes or better in the extension of those of the applicator rollers, axes resting in cutouts integral with the carriage and one of which is held in each of the two active positions to play the role of axis of rotation by stops integral with the frame, the approach and contact control acting on the symmetrical frame to ensure the displacement of the other axis and therefore of the other applicator roller and guide rollers.

Un tel cadre symétrique permet de ne prévoir qu'une seule commande d'approche et qu'une seule commande de contact au lieu de deux. Si l'on sait que ces commandes comprennent classiquement au moins un vérin pour l'approche et en général deux vérins pour le contact, on comprend aisément qu'il en résulte encore une économie de fabrication et une plus grande fiabilité.Such a symmetrical frame makes it possible to provide only one approach command and only one contact command instead of two. If it is known that these commands conventionally comprise at least one actuator for the approach and in general two actuators for the contact, it is easily understood that this further results in economy of manufacture and greater reliability.

Avantageusement, les divers organes du dérouleur étant symétriques par rapport à un plan, les axes des couteaux peuvent également être fixes et disposés de part et d'autre de ce plan de symétrie.Advantageously, the various bodies of the unwinder being symmetrical with respect to a plane, the axes of the knives can also be fixed and arranged on either side of this plane of symmetry.

Un mode de réalisation de l'invention est maintenant décrit à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels :

  • la figure 1 représente très schématiquement dix phases successives du fonctionnement d'un dérouleur de bobines conforme à l'invention référencées de a à j ;
  • la figure 2 est une vue latérale à plus grande échelle de ce dérouleur ;
  • la figure 3 est une vue transversale partielle à échelle encore agrandie ; et
  • la figure 4 est une vue en coupe selon la ligne IV-IV de la figure 3.
An embodiment of the invention is now described by way of nonlimiting example with reference to the accompanying drawings in which:
  • FIG. 1 very schematically represents ten successive phases of the operation of a reel unwinder according to the invention referenced from a to j;
  • Figure 2 is a side view on a larger scale of this unwinder;
  • Figure 3 is a partial cross-sectional view on a still enlarged scale; and
  • FIG. 4 is a sectional view along the line IV-IV of FIG. 3.

On voit en figure 1 un dérouleur de bobines pour machine à imprimer constitué très schématiquement d'un bâti 1 qui supporte, par des potences 2 et 3, deux axes 4 et 5 superposés recevant deux bobines 6 et 7.FIG. 1 shows a reel unwinder for a printing machine consisting very schematically of a frame 1 which supports, by brackets 2 and 3, two superposed axes 4 and 5 receiving two reels 6 and 7.

Le bâti 1 reçoit en outre un chariot 8 mobile parallèlement au plan contenant les axes 4 et 5 et un équipage classique de sortie de la bande composé de deux rouleaux fixes 9 et 10 et d'un rouleau 11 soumis à l'action d'un organe élastique non représenté.The frame 1 also receives a carriage 8 movable parallel to the plane containing the axes 4 and 5 and a conventional equipment for outputting the strip composed of two fixed rollers 9 and 10 and a roller 11 subjected to the action of a elastic member not shown.

Le chariot 8 porte un cadre articulé symétrique constitué de deux montants 12 et 13 dont un seul 12 est visible sur la figure, de deux rouleaux applicateurs 14 et 15 et d'un rouleau guide 16.The carriage 8 carries a symmetrical articulated frame consisting of two uprights 12 and 13 of which only one 12 is visible in the figure, two applicator rollers 14 and 15 and a guide roller 16.

Enfin, deux couteaux 17 et 18 et leurs supports 19 et 20 de constitution classique sont disposés de part et d'autre du plan de symétrie du dérouleur.Finally, two knives 17 and 18 and their supports 19 and 20 of conventional constitution are arranged on either side of the plane of symmetry of the unwinder.

La bande continue 21, qui est ici une bande de papier destinée à l'impression, se déroule dans la phase a de la bobine supérieure 6 pour atteindre le rouleau guide 16, puis l'équipage de sortie 9, 10, 11 et de là, selon la flèche F, la machine à imprimer.The continuous strip 21, which is here a paper strip intended for printing, takes place in phase a of the upper reel 6 to reach the guide roller 16, then the output crew 9, 10, 11 and from there, according to arrow F, the printing machine.

A ce stade, le chariot 8 est en position haute et le cadre constitué par les rouleaux applicateurs 14 et 15, les montants 12 et 13 et le rouleau guide 16 en position inactive contre le chariot 8.At this stage, the carriage 8 is in the high position and the frame formed by the applicator rollers 14 and 15, the uprights 12 and 13 and the guide roller 16 in the inactive position against the carriage 8.

La phase de fonctionnement b montre la bobine 6 en voie d'épuisement tandis que la bobine 7, qui était en attente, est mise en rotation par commande de son axe 5 de telle sorte que les vitesses périphériques des deux bobines soient synchronisées.The operating phase b shows the coil 6 being exhausted while the coil 7, which was on standby, is rotated by control of its axis 5 so that the peripheral speeds of the two coils are synchronized.

Au cours de la phase c les dernières spires de la bobine 6 se déroulent et l'opération de collage se prépare. Pour ce faire, le chariot 8 a été mis en position basse et le cadre articulé portant les rouleaux applicateurs 14, 15 a subi une rotation autour d'un axe confondu avec celui du rouleau applicateur 16. De la sorte, la bande 21 s'appuie sur les guides 19 et 20 des couteaux et sur le rouleau applicateur 14 qui est en position d'approche au voisinage de la bobine 7, avant d'atteindre le rouleau guide 16.During phase c the last turns of the coil 6 take place and the bonding operation is prepared. To do this, the carriage 8 has been placed in the low position and the articulated frame carrying the applicator rollers 14, 15 has been rotated about an axis coincident with that of the applicator roller 16. In this way, the strip 21 s' presses on the guides 19 and 20 of the knives and on the applicator roller 14 which is in the approach position in the vicinity of the coil 7, before reaching the guide roller 16.

La phase d est la phase de collage de l'extrémité de la bande 21 provenant de la bobine 6 maintenant vide, avec la première spire de la bobine 7. Cette opération de collage se fait de façon classique grâce à un ruban adhésif double face 22 porté par cette première spire qui est légèrement désolidarisée de la suivante.Phase d is the bonding phase of the end of the strip 21 coming from the now empty reel 6, with the first turn of the reel 7. This bonding operation is carried out in a conventional manner using double-sided adhesive tape 22 carried by this first turn which is slightly separated from the next.

Juste avant que ce ruban 22 passe sous le rouleau applicateur 14 en position d'approche, ce dernier est mis en position de contact, comme représenté en d par une nouvelle rotation du cadre articulé et le ruban 22 assure le collage de la bande 21 sur la première spire de la bobine 7. Le couteau 17 subit une rotation de façon elle aussi tout à fait classique et ses dents pénètrent dans la bande 21 pour la sectionner ; cette coupe peut s'effectuer avant, pendant ou bien après le collage proprement dit.Just before this strip 22 passes under the applicator roller 14 in the approach position, the latter is brought into the contact position, as shown in d by a new rotation of the articulated frame and the strip 22 ensures the bonding of the strip 21 on the first turn of the coil 7. The knife 17 is also rotated in a completely conventional manner and its teeth penetrate the strip 21 to cut it; this cutting can be done before, during or after the actual bonding.

On passe ainsi à la phase e pour laquelle l'axe 4 d'entraînement de la bobine 6 est arrêté, le couteau 17 est revenu en position de repos et le cadre articulé en position inactive le long du chariot 8. La bande 23 issue de la bobine 7 se déroule maintenant en passant sur le rouleau guide 16 pour atteindre l'équipage de sortie 9, 10, 11 et enfin la machine à imprimer.We thus pass to phase e for which the axis 4 for driving the coil 6 is stopped, the knife 17 has returned to the rest position and the articulated frame in the inactive position along the carriage 8. The strip 23 from the reel 7 now takes place passing over the guide roller 16 to reach the output equipment 9, 10, 11 and finally the printing machine.

La phase f correspond au déroulement de la bobine 7 pendant lequel on a chargé l'axe 4 d'une nouvelle bobine 6' pleine.Phase f corresponds to the unwinding of the coil 7 during which the axis 4 has been loaded with a new full coil 6 ′.

Lorsque selon la phase g la bobine 7 commence à s'épuiser, l'axe 4 est mis en rotation et la bobine 6' est lancée à vitesse synchrone.When in phase g the coil 7 begins to run out, the axis 4 is rotated and the coil 6 'is launched at synchronous speed.

On aboutit ainsi à la phase h pour laquelle la bobine 7 déroulant ses dernières spires une nouvelle opération de collage se prépare. Pour ce faire, le chariot 8 est mis en position haute et le cadre articulé symétrique en position d'approche par rotation, cette fois, autour d'un axe confondu avec celui du rouleau applicateur 14. Ainsi la bande 23 se déroule le long des guides 19 et 20 des couteaux, du rouleau applicateur en position d'approche 15, du rouleau guide 16 et des trois rouleaux 9, 10, 11 de l'équipage de sortie.This leads to phase h for which the coil 7 unwinding its last turns a new bonding operation is prepared. To do this, the carriage 8 is placed in the high position and the symmetrical articulated frame in the approach position by rotation, this time around an axis coincident with that of the applicator roller 14. Thus the strip 23 is unwound along the knife guides 19 and 20, the applicator roller in the approach position 15, the guide roller 16 and the three rollers 9, 10, 11 of the output equipment.

Bien entendu, la bobine 6' est pourvue également d'un ruban autocollant double face 22', de telle sorte que lorsqu'au cours de la phase i le rouleau applicateur 15 est mis en position de contact, la bande 23 se colle sur la bande 24 de cette bobine 6'.Of course, the reel 6 ′ is also provided with a double-sided adhesive tape 22 ′, so that when, during phase i the applicator roller 15 is brought into contact position, the strip 23 sticks to the strip 24 of this coil 6 '.

Simultanément, c'est le couteau 18 qui est mis en position active et qui assure, comme précédemment, la coupe de la bande 23 issue de la bobine 7 maintenant vide.Simultaneously, it is the knife 18 which is placed in the active position and which ensures, as before, the cutting of the strip 23 coming from the now empty reel 7.

Lorsque le cadre articulé est revenu en position inactive, comme représenté en j, c'est la bande 24 provenant de la bobine 6' qui suit le même trajet que la bande 21 tel qu'il est représenté en a. Il reste, pour retourner à la position de départ, à remplacer la bobine 7 épuisée par une nouvelle bobine.When the articulated frame has returned to the inactive position, as shown in j, it is the strip 24 coming from the coil 6 'which follows the same path as the strip 21 as shown in a. It remains, to return to the starting position, to replace the exhausted coil 7 with a new coil.

La figure 2 montre à plus grande échelle la structure générale du dérouleur. On y retrouve le bâti 1 constitué ici de quatre montants, dont deux visibles 25 et 26, d'un socle 27 et d'une entretoise supérieure 28 ainsi que les potences 2 et 3 qui portent les axes 4 et 5. Le dérouleur étant représenté dans sa phase d, l'axe 4 porte une bobine 6 en voie d'épuisement et l'axe 5 porte une bobine 7 pleine.Figure 2 shows on a larger scale the general structure of the unwinder. We find there the frame 1 here consisting of four uprights, two of which are visible 25 and 26, a base 27 and an upper spacer 28 as well as the brackets 2 and 3 which carry the axes 4 and 5. The unwinder being shown in its phase d, the axis 4 carries a coil 6 being exhausted and the axis 5 carries a full coil 7.

Les moteurs 29 et 30 ainsi que les volants 31 et 32 servent à déplacer latéralement les bobines.The motors 29 and 30 as well as the flywheels 31 and 32 are used to move the coils laterally.

L'équipage de sortie 9, 10, 11 est porté par les montants et les entretoises 26, 28 et les couteaux 17, 18 avec leur support 19, 20, flanqués d'une traverse de protection 33, par les montants 25.The outgoing assembly 9, 10, 11 is carried by the uprights and the spacers 26, 28 and the knives 17, 18 with their support 19, 20, flanked by a protective cross member 33, by the uprights 25.

Le chariot mobile 8 et le cadre symétrique articulé portant les rouleaux 14, 15 et 16 visibles à la figure 2 sont représentés plus en détail aux figures 3 et 4. On notera à ce propos que les rouleaux applicateurs 14 et 15 portent un revêtement souple.The mobile carriage 8 and the articulated symmetrical frame carrying the rollers 14, 15 and 16 visible in FIG. 2 are shown in more detail in FIGS. 3 and 4. It will be noted in this connection that the applicator rollers 14 and 15 carry a flexible coating.

Le montant 26 et son symétrique 34 portent deux crémaillères 35, 36 verticales en prise avec deux roues dentées coaxiales 37, 38 et quatre galets 39, 40, 41, 42. Ces deux roues dentées et ces quatre galets sont portés par deux flasques latéraux 43, 44 qui constituent, avec des entretoises convenables 45, 46, le chariot 8. Ainsi, ce chariot peut être déplacé en translation verticale grâce à un moteur 47 en prise par le réducteur 48 avec l'arbre 49 qui porte les deux roues dentées 37, 38.The upright 26 and its symmetrical 34 carry two vertical racks 35, 36 engaged with two coaxial toothed wheels 37, 38 and four rollers 39, 40, 41, 42. These two toothed wheels and these four rollers are carried by two lateral flanges 43 , 44 which constitute, with suitable spacers 45, 46, the carriage 8. Thus, this carriage can be moved in vertical translation by a motor 47 engaged by the reduction gear 48 with the shaft 49 which carries the two toothed wheels 37 , 38.

L'entretoise 45 supporte le pivot 50 d'un vérin central d'approche 51 en prise avec un bras 52 lui-même solidaire d'une douille 53 enfilée sur l'entretoise 46 et libre en rotation.The spacer 45 supports the pivot 50 of a central approach cylinder 51 engaged with an arm 52 itself secured to a sleeve 53 threaded on the spacer 46 and free to rotate.

La douille 53 porte, au voisinage de ses extrémités, deux bras symétriques 54, 55 articulés sur deux vérins de contact 56, 57 eux-mêmes en prise avec l'axe 58 du rouleau guide 16. L'axe 58 et les axes 59 et 60 des rouleaux applicateurs 14, 15 sont tourillonnés sur les montants 12 et 13.The socket 53 carries, in the vicinity of its ends, two symmetrical arms 54, 55 articulated on two contact jacks 56, 57 themselves engaged with the axis 58 of the guide roller 16. The axis 58 and the axes 59 and 60 of the applicator rollers 14, 15 are journalled on the uprights 12 and 13.

Comme on le voit mieux en figure 3, les axes 59 et 60 des rouleaux applicateurs 14, 15 font saillie par rapport aux montants 12 et 13 de façon à s'engager dans des coussinets solidaires pour partie du chariot et pour partie du bâti.As best seen in Figure 3, the axes 59 and 60 of the applicator rollers 14, 15 protrude relative to the uprights 12 and 13 so as to engage in integral bearings for part of the carriage and for part of the frame.

Plus précisément, le bout d'axe 61 du rouleau applicateur 15 est logé dans une découpe 62 d'un bloc 63 solidaire du flasque 43 du chariot, et lorsque le chariot est en position basse, ce même bout d'axe 61 repose dans un siège 64 d'une butée 65 solidaire du montant 26 du bâti. On retrouve la même configuration pour le bout d'axe symétrique 61' et pour les deux bouts d'axes 66 et 66' du rouleau applicateur 14 qui coopère avec deux blocs portant eux aussi la référence 63 et avec deux butées 67 correspondant à la position haute du chariot et visibles en figure 2.More specifically, the axis end 61 of the applicator roller 15 is housed in a cutout 62 of a block 63 secured to the flange 43 of the carriage, and when the carriage is in the low position, this same axis end 61 rests in a seat 64 of a stop 65 integral with the upright 26 of the frame. We find the same configuration for the end of the symmetrical axis 61 'and for the two ends of axes 66 and 66' of the applicator roller 14 which cooperates with two blocks also bearing the reference 63 and with two stops 67 corresponding to the position high of the carriage and visible in Figure 2.

De la sorte, lorsque le chariot est en position basse, comme représenté aux figures 2, 3 et 4, le cadre articulé peut subir le mouvement de rotation qui lui est imposé par le vérin 51 pour passer en position d'approche puis par les vérins 56, 57 pour passer en position de contact autour du bout d'axe 61 et de son symétrique 61' retenus par les butées 65, tandis que le bout d'axe 66 situé à l'extrémité de l'axe 59 du rouleau 14 est libre de la même manière que son symétrique 66'.In this way, when the carriage is in the low position, as shown in FIGS. 2, 3 and 4, the articulated frame can undergo the rotational movement which is imposed on it by the jack 51 to move into the approach position then by the jacks 56, 57 to pass into the contact position around the end of the axis 61 and its symmetrical 61 'retained by the stops 65, while the end of the axis 66 located at the end of the axis 59 of the roller 14 is free in the same way as its symmetrical 66 '.

Par contre, si le chariot se trouve en position haute, ce sont les bouts d'axes 66 et 66' qui sont en prise avec les butées 67 et la rotation a donc lieu autour de l'axe 59, l'axe 60 se trouvant alors libre.On the other hand, if the carriage is in the high position, it is the ends of axes 66 and 66 'which are engaged with the stops 67 and the rotation therefore takes place around the axis 59, the axis 60 being then free.

Ainsi ont été représentés et décrits tous les mécanismes permettant d'obtenir les mouvements des pièces du dérouleur nécessaires pour l'exécution des phases a à j commentées en regard de la figure 1.Thus have been represented and described all the mechanisms making it possible to obtain the movements of the parts of the unwinder necessary for the execution of the phases a to j commented on with reference to FIG. 1.

Le moteur 47 assure le mouvement alternatif de montée et de descente du chariot 8 qui avance grâce aux roues dentées 37, 38 et aux galets 39 à 42 le long des crémaillères 35, 36. Le vérin unique d'approche 51 assure, par l'intermédiaire du bras 52 de la douille 53, des bras 54, 55 et des vérins en position rétractée 56 et 57, le mouvement d'approche du rouleau applicateur 14 autour de l'axe 61, 61' lorsque le chariot est en position basse et du rouleau applicateur 15 autour de l'axe 66, 66' lorsque le chariot est en position haute. Les vérins 56, 57 assurent ensuite le mouvement de contact pour l'un ou l'autre des rouleaux applicateurs, suivi d'une rotation des couteaux 17, 18 autour de l'axe de son support 19 ou 20. On notera que les organes de commande de ces deux couteaux 17, 18 n'ont pas été décrits car ils sont eux aussi parfaitement classiques et largement utilisés dans les dérouleurs connus à ce jour.The motor 47 ensures the alternating movement of ascent and descent of the carriage 8 which advances by means of the toothed wheels 37, 38 and the rollers 39 to 42 along the racks 35, 36. The single approach cylinder 51 ensures, by the through the arm 52 of the sleeve 53, the arms 54, 55 and the jacks in the retracted position 56 and 57, the approach movement of the applicator roller 14 around the axis 61, 61 ′ when the carriage is in the low position and of the applicator roller 15 around the axis 66, 66 'when the carriage is in the high position. The cylinders 56, 57 then ensure the contact movement for one or the other of the applicator rollers, followed by a rotation of the knives 17, 18 around the axis of its support 19 or 20. It will be noted that the members control of these two knives 17, 18 have not been described because they are also perfectly conventional and widely used in unwinders known to date.

La simplicité même des moyens mécaniques mis en oeuvre par l'invention permet de concevoir pour certaines utilisations une commande manuelle des mouvements du chariot et des vérins, mais il va de soi que, selon la vitesse de déroulement et selon la taille de l'installation, des solutions plus ou moins automatisées peuvent être mises en oeuvre, Par exemple, le mouvement du chariot peut rester à commande manuelle tandis que l'approche, le contact et la coupe peuvent être automatisés. On utilisera alors avantageusement les moyens classiques qui permettent de repérer le ruban auto-collant double face 22 ou 22' et de déclencher le contact et la coupe grâce à ce repérage, ce qui élimine le positionnement manuel du ruban de colle.The very simplicity of the mechanical means used by the invention makes it possible to design for certain uses a manual control of the movements of the carriage and of the jacks, but it goes without saying that, depending on the speed of unwinding and according to the size of the installation , more or less automated solutions can be implemented. For example, the movement of the carriage can remain manually controlled while the approach, contact and cutting can be automated. We will then advantageously use conventional means which make it possible to identify the double-sided self-adhesive tape 22 or 22 ′ and to trigger the contact and the cut by virtue of this marking, which eliminates the manual positioning of the adhesive tape.

Claims (7)

1. A reel unwinder (6, 6', 7) for continuously supplying an endless web (21, 23), comprising mounted on a stand (25 to 28), two spindles (4, 5) for supporting two reels, one of which is being unwound while the other spindle, after removal of the core of the consumed reel, receives a full reel, means (9, 10, 11) for maintaining a suitable web tension, means for accelerating the full reel to the linear unwinding speed through an action on the spindle thereof, the free end of the full reel receiving a strip of adhesive (22, 22'), laying means for placing the web of the nearly consumed reel onto the web of the full reel to bond the webs by the strip of adhesive, said laying means including applicator elements (14, 15) mounted on a movable assembly (8) for bringing said elements into an active position alternately near each full reel (6, 6', 7), and knife means (17, 18) for cutting the web issued from the consumed reel, characterized in that the laying means comprise two applicator elements (14, 15) mounted on the movable assembly on each side of at least one guide roller (16) on which the unwound web (21, 23) passes, as well as first (51) and second (56, 57) control means for successively acting on the applicator element (14 or 15) which is situated on the other side of the web (21, 23) with respect to the full reel, for placing said applicator element into an approach position relatively to the full reel surface, and then into a contact position with said full reel surface, respectively.
2. A reel unwinder according to claim 1, characterized in that the movable assembly is a carriage (8) which is driven by driving means for executing a translational movement along slides (35, 36), said slides being parallel with the plane containing the spindles (4, 5) of said two reels (6, 6', 7).
3. A reel unwinder according to claim 1 or 2, characterized in that the applicators elements are rollers (14, 15), and in that these rollers as well as the guide roller(s) (16) are carried by two posts (12, 13) for forming a symmetrical frame provided with two axles (61, 61', 66, 66') on opposite sides of said guide roller or of each of said guide rollers and at a distance from each other, said axles resting in cut-out portions (62) of said movable assembly (8), one of said axles being retained in each of said two active positions, by stops (65, 67) integral with the stand, for functioning as a pivot axle, said first and second control means (51 ; 56, 57) acting one after the other on the symmetrical frame for pivoting it about one of the axles thereof for bringing in two steps the opposite applicator roller (14 or 15) against the full reel surface.
4. A reel unwinder according to claim 3, characterized in that said axles (61, 61', 66, 66') for pivoting said frame are flush with the pivot axles of said applicator rollers (14, 15).
5. A reel unwinder according to claim 3 or 4, characterized in that said first control means comprise a central approach jack (51) articulated, on one side thereof, to said movable assembly (8) and engaged, on the other side thereof, with an arm (52) fixed to a bush (53), said bush being rotatably mounted around a strut (46) on the movable assembly (8) and carrying two symmetrical arms (54, 55) near both ends of said arm, said symmetrical arms being articulated at the opposite end thereof to respective ends of contact jacks (56, 57) the two contact jacks (56, 57) forming together said second control means and being connected at opposite second ends thereof with said symmetrical frame each at a mid-point between said two applicator rollers (14, 15).
6. A reel unwinder according to claim 5, characterized in that said two contact jacks (56, 57) are engaged with the axle (58) supporting said guide roller (16).
7. A reel unwinder according to anyone of claims 1 to 6, characterized in that the axles of said knives (17, 18) are fixed and arranged on either side of the plane of symmetry of the unwinder.
EP86402120A 1985-09-30 1986-09-29 Unwinding device for bobbins Expired EP0223632B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86402120T ATE48117T1 (en) 1985-09-30 1986-09-29 UNWINDING DEVICE FOR ROLLS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8514465 1985-09-30
FR8514465A FR2587982B1 (en) 1985-09-30 1985-09-30 REEL OF REELS

Publications (2)

Publication Number Publication Date
EP0223632A1 EP0223632A1 (en) 1987-05-27
EP0223632B1 true EP0223632B1 (en) 1989-11-23

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86402120A Expired EP0223632B1 (en) 1985-09-30 1986-09-29 Unwinding device for bobbins

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US (1) US4763851A (en)
EP (1) EP0223632B1 (en)
AT (1) ATE48117T1 (en)
CA (1) CA1279629C (en)
DE (1) DE3667046D1 (en)
FR (1) FR2587982B1 (en)

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DE4328038A1 (en) * 1993-08-20 1995-02-23 Roland Man Druckmasch Roll changer

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NL8702407A (en) * 1987-10-09 1989-05-01 Stork Contiweb Apparatus for continuously feeding a stock web from a stock roll.
DE3816223A1 (en) * 1988-05-11 1989-11-23 Bhs Bayerische Berg DEVICE FOR SPLICING RAILWAYS, ESPECIALLY PAPER RAILWAYS FOR THE PRODUCTION OF CARDBOARD
DE4135101A1 (en) * 1991-10-24 1993-04-29 Koenig & Bauer Ag COIL FEEDING DEVICE FOR PAPER REEL REPLACEMENT IN ROTARY PRINTING MACHINES
IT1263448B (en) * 1993-06-28 1996-08-05 Gd Spa DEVICE FOR THE SUPPORT OF GLUING MATERIAL DISTRIBUTORS.
US5709355A (en) * 1994-06-16 1998-01-20 Valmet Corporation Splicing device for a continuous unwind stand
US5881943A (en) 1994-06-17 1999-03-16 Heartport, Inc. Surgical anastomosis apparatus and method thereof
US5732872A (en) 1994-06-17 1998-03-31 Heartport, Inc. Surgical stapling instrument
DE4441142C2 (en) * 1994-11-18 1999-09-30 Koenig & Bauer Ag Two-way swivel frame of a paper roll changing device
DE19616322B4 (en) * 1995-04-28 2007-01-04 MEGTEC Systems, Inc., De Pere Vertical adhesive press
FR2794445B1 (en) * 1999-06-01 2001-08-10 Donato Rufo PAPER SUPPLY DEVICE, PARTICULARLY FOR A CARDBOARD MANUFACTURING LINE
JP4369073B2 (en) * 2001-04-13 2009-11-18 株式会社小森コーポレーション Method and apparatus for controlling strip continuous supply device
EP2062841B1 (en) * 2007-11-23 2013-02-13 Goss Contiweb B.V. Device for applying a paper web onto a paper reel and corresponding reel changer

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DE4328038A1 (en) * 1993-08-20 1995-02-23 Roland Man Druckmasch Roll changer

Also Published As

Publication number Publication date
ATE48117T1 (en) 1989-12-15
CA1279629C (en) 1991-01-29
DE3667046D1 (en) 1989-12-28
EP0223632A1 (en) 1987-05-27
FR2587982A1 (en) 1987-04-03
FR2587982B1 (en) 1988-05-20
US4763851A (en) 1988-08-16

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