EP2497730A1 - Device for accumulating flat products on a flexible belt - Google Patents

Device for accumulating flat products on a flexible belt Download PDF

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Publication number
EP2497730A1
EP2497730A1 EP12158131A EP12158131A EP2497730A1 EP 2497730 A1 EP2497730 A1 EP 2497730A1 EP 12158131 A EP12158131 A EP 12158131A EP 12158131 A EP12158131 A EP 12158131A EP 2497730 A1 EP2497730 A1 EP 2497730A1
Authority
EP
European Patent Office
Prior art keywords
accumulation
box
side walls
band
strip
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.)
Granted
Application number
EP12158131A
Other languages
German (de)
French (fr)
Other versions
EP2497730B1 (en
Inventor
Eric Fresnel
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.)
Sleever International Co SA
Original Assignee
Sleever International Co SA
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 Sleever International Co SA filed Critical Sleever International Co SA
Priority to PL12158131T priority Critical patent/PL2497730T3/en
Publication of EP2497730A1 publication Critical patent/EP2497730A1/en
Application granted granted Critical
Publication of EP2497730B1 publication Critical patent/EP2497730B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B65H20/00—Advancing webs
    • B65H20/24—Advancing webs by looping or like devices
    • 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
    • B65H19/14—Accumulating surplus web for advancing to machine while changing the web 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
    • B65H20/00—Advancing webs
    • B65H20/30—Arrangements for accumulating surplus web
    • B65H20/32—Arrangements for accumulating surplus web by making loops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/60—Damping means, shock absorbers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/21—Accumulators
    • B65H2408/212—Accumulators of zigzag-type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2408/00—Specific machines
    • B65H2408/20—Specific machines for handling web(s)
    • B65H2408/21—Accumulators
    • B65H2408/215—Accumulators supported by vacuum or blown air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/12—Width

Definitions

  • the invention relates to a device for accumulation of flat product in flexible band, for example a sheath of heat-shrinkable plastic material for the manufacture of heat-shrink sleeves on a container or any other object.
  • the invention relates to an accumulator type accumulation device in which the risk of kinking and mis-positioning of the band is decreased.
  • a device for accumulating flat product in a flexible band comprising an accumulation box having a bottom on which, at least during accumulation phases, the strip is accumulated between two end walls and two side walls which extend opposite edges of the strip, the accumulation device comprising at least one means of reducing the risk of kinking of the band in the accumulation box.
  • the end wall closest to an inlet of the product in the feed box carries a deflector adapted to promote the layering of the product inside the feed box, the deflector being associated with vibration means for vibrating the deflector.
  • the association of the deflector with means of vibration of the deflector greatly facilitates the layering of the flat product which limits a risk of kinking the flat product, especially when it is a sheath of heat-shrinkable plastic material for manufacturing heat-shrink sleeves on a container that is not a uniform thickness which inevitably generates scroll problems in the accumulation box and increases the risk of twisting of the sheath relative to a flat product of uniform thickness.
  • the invention is therefore particularly suitable for limiting the kinking of such a sheath.
  • the storage device of the invention is intended to be inserted in an installation organizing the circulation of a strip flat product, for example a sheath of heat-shrinkable plastic material.
  • the circuit comprises a coil 2 forming a strip source 1.
  • the strip 1 is then engaged in a cushioning device 3 to a jumper comprising a series of fixed rollers 4 and a series of movable rollers 5 mounted on an articulated lever 6 on a pivot 7 and between which the band 1 extends.
  • the band 1 is then led towards an accumulation device 10 according to the invention.
  • the accumulation box 11 which is seen here in slice the end walls 12, the ceiling 13 and the bottom 14.
  • the accumulation box 11 is also closed by two side walls 30 visible in slice to the figure 2 .
  • the band 1 enters here in the accumulation box 11 through an opening 15 made in the ceiling 13 being guided by a motorized input roller 16. Then the band comes out here through an opening 17 formed in one of the walls end 12, guided by a motorized output roller 18.
  • the input rollers 16 and output rollers 18 are associated with counter-rollers for gripping the web 1 and forcing it to advance.
  • an antistatic bar 19 is disposed at the inlet of the accumulation box 11 to prevent any accumulation of static electricity in the accumulation box that could disrupt the stacking of webs on each other.
  • the counter roll of the input roll 16 may be provided of the antistatic type.
  • the speed of rotation of the output roller 18 is of course adapted to the rate of tape call by the sleeve machine disposed downstream of the accumulation box 11.
  • the speed of rotation of the input roll 16 it is normally set to be identical to that of the output roller 18, except in the accumulation phases where it is greater than that of the output roller 18, thus causing the accumulation of the web in the accumulation box 11 as shown here.
  • the strand of tape coming out of the accumulation box comes from a part of the strip 1 extending under the layers formed by the strip 1.
  • the figure 1 is schematic, and the accumulation device 11 can see the formation of tens or even hundreds of layers inside the accumulation box 11. It will be noted that the layers are laid on one another, without twisting, thanks to the provisions detailed below.
  • the band 1 is progressively unwound from the coil 2 at the speed imposed by the machine downstream of the accumulation device.
  • the band 1 then passes through the accumulation box 11 without making tablecloths. If, thanks to a level indicator 50 disposed near the coil 2, it is detected that the coil is soon fully unwound, the input roller 16 is then controlled to rotate faster than the output roller 18, so that the band is gradually accumulated in the accumulation box 11.
  • an end of band sensor 51 disposed upstream of the accumulation box 11 marks the end of the strip, which controls the stopping of the input roll 16.
  • the end of the tape is then immobilized substantially above the accumulation box 11, where there is a connection table (not shown here).
  • an operator removes the empty spool and replaces it with a full spool.
  • the beginning of the new band is brought into the damping device 3 until coming close to the end of the old band.
  • the operator proceeds to connect the two strips, and when this connection is made, the input roll 16 is rotated again.
  • the amount of tape accumulated in the accumulation box 11 is adjusted to allow the operator time, taking into account the speed of travel of the tape output of the accumulation box, to change the coil and connect the new band to the old band.
  • rollers mentioned here have axes of rotation parallel and perpendicular to a running direction of the band 1 (and therefore also perpendicular to the side walls 30).
  • the provisions of the invention are more specifically intended to eliminate as much as possible, and in any case to reduce the risk that the tape does not twist or is positioned poorly in the accumulation box 11.
  • the bottom 14 of the accumulation box 11 carries idle rollers 20 on which the band 1 comes to rest during the accumulation phases.
  • the idle rollers 20 facilitate the exit of the strip through the opening 17 while avoiding that it is too slowed down by the weight of the layers of bands accumulated on the outgoing strand.
  • the axis of rotation of the idler rollers 14 is parallel to the axes of rotation of the other rollers.
  • the accumulation box 11 is equipped with air circulation means to promote the proper positioning of the webs in the accumulation box 11 during the accumulation phases.
  • the air circulation means here comprise air extractors 21 installing a vacuum in a box 22 disposed under the bottom 14 of the accumulation box 11.
  • the bottom 14 of the accumulation box 11 is perforated so that the vacuum thus installed causes in the accumulation box 11 a flow of air from the top down (and thus towards the bottom of the accumulation box) as illustrated by the arrows on the figure 1 , tending to press the plies of the strip 1 against each other, and thus facilitate their stacking in the accumulation box 11. It will obviously be necessary to provide orifices in the ceiling 13 for the call of air.
  • the side walls 30 are provided with vibrators 31 for vibrating the side walls 30 during the accumulation of tape 1 in the accumulation box 11.
  • the vibration of the side walls 30 prevents the edges of the band 1 from clinging on the side walls, which can cause a twisting of the strip 1.
  • the side walls 31 are made of transparent material, in order to check the good stack of webs 1 in the accumulation box 11.
  • the side walls 30 are associated with adjustable spacing means 40 for adjusting the distance between the faces of the side walls opposite so that this distance is adjusted to the width of the band 1, leaving a small clearance (typically a few millimeters for a band 10 centimeters wide).
  • the side walls 30 are each mounted on two supports 41 cooperating by a screw-nut type connection with respective shafts 42 (only one is visible at the figure 2 ) whose rotations are synchronized, for example by means of a belt.
  • Each shaft 42 is rotatably received in a bearing 44 integral with the bottom 13 of the box, and is threaded at its two ends in the opposite direction, so that rotation of one of the shafts causes spacing or bringing the two walls closer together.
  • one of the shafts 42 is here equipped with a crank 43 for its operation.
  • the side walls 30 are thus suspended by their supports 41, which facilitates their vibration under the effect of the vibrators 31.
  • the provisions of the invention can reduce the risk of twisting of the band in the accumulation box.
  • the applicant has been able to verify that the accumulation device is suitable for sealed heat-shrink plastic sleeves for the fitting of heat-shrink sleeves, sheaths having various thicknesses (20 to 150 micrometers), made of various materials (PVC, PET, OPS, etc.). .) traveling at speeds suitable for laying 20 to 600 sleeves per minute, the sleeves having heights of 15 to 250 millimeters. No twisting was found.
  • the band 101 is taken to an accumulation device 110 which comprises an accumulation box 111 which here is sliced the walls end 112, the ceiling 113 and the bottom 114.
  • the accumulation box 111 is further closed by two side walls not shown here, at least one of which is transparent.
  • the band 101 enters here in the accumulation box 111 through an opening 115 made in the ceiling 113 being guided by a motorized input roller 116 associated with its against-roller. Then the strip comes out here through an opening 117 made in one of the end walls 112, being guided by an exit roller 118.
  • a motorized extraction roller 160 is here disposed outside to pull the strip out of the box 111, the motorized roller 160 being associated with a brush 161 to maintain a constant voltage output of the accumulation device. Furthermore, a choke 162 is disposed facing the output roller 118 to prevent the simultaneous output of several webs.
  • the idle rollers 120 are arranged not only close to the bottom 114, but also along an exit strand of the strip to facilitate said outlet, but also the air circulation means 121 which introduces a flow of air vertical in the accumulation box 111.
  • the end wall 112 opposite the one carrying the exit roller 118 here carries a baffle 164 suitable for promoting the laying of webs and which is here equipped with a vibrator 165 to implement move this deflector so that it creates a movement of the sheets to the outlet of the accumulation box 111.
  • the accumulation device is equipped with a level sensor 166 for managing the minimum level of layers in the accumulation box during an accumulation phase.
  • the level sensor 166 manages the speed of the input roll 116.
  • the circuit of the strip upstream of the feeder 110 comprises a coil 102 forming a strip source 1.
  • the strip 1 is returned to the inlet of the feed box 111 by means of cylinders 167 and 168 forming a cushion. air and equipped with lateral guide rings to assist in the recentering of the band, especially when using truncated coils.
  • the end-of-band sensor 151, located here immediately upstream of the return cylinder 168, and the level sensor 150 of the coil 102 are recognized.
  • said means are capable of numerous variants.
  • the side walls are both equipped with a vibrator, we can simply vibrate a single wall.
  • the spacing means causes a symmetrical displacement of the side walls with respect to a median plane, only one of the side walls can be moved, if the installation comprises means for centering the band in the center. space thus defined.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Pile Receivers (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Basic Packing Technique (AREA)
  • Making Paper Articles (AREA)

Abstract

The device (10) has an accumulator box (11) including bottom (14), on which flexible flat tape products (1) are accumulated between end walls (12) and side walls (30). A reducing unit reduces risks of twisting of the products in the box. The end walls closer to an inlet of the tape products in the box carry a deflector adapted to promote positioning of the tape products within the box. The deflector is associated with a vibrating unit for vibrating the deflector. The box is equipped with a circulating unit circulating air to promote positioning of webs of the products in the box. Independent claims are also included for the following: (1) a flat product circulating installation (2) a method for using an accumulating device.

Description

L'invention concerne un dispositif d'accumulation de produit plat en bande souple, par exemple une gaine en matière plastique thermorétractable pour la fabrication de manchons thermorétractés sur un récipient ou tout autre objet.The invention relates to a device for accumulation of flat product in flexible band, for example a sheath of heat-shrinkable plastic material for the manufacture of heat-shrink sleeves on a container or any other object.

ARRIERE-PLAN TECHNOLOGIQUEBACKGROUND

Dans des installations de couverture de récipients ou autres objets par un manchon thermorétractable, il est utile d'interposer un dispositif d'accumulation entre la bobine de gaine thermorétractable et le poste sur lequel cette gaine est travaillée, ledit dispositif d'accumulation jouant plusieurs rôles. Il permet d'absorber les à-coups de production, en évitant de tirer trop violement sur la gaine. Il permet en outre le changement de bobine en laissant le temps nécessaire au raccord de la nouvelle gaine à l'extrémité de l'ancienne gaine.In installations for covering containers or other objects with a heat-shrinkable sleeve, it is useful to interpose an accumulation device between the heat-shrinkable sheath coil and the station on which this sheath is worked, said accumulation device playing several roles. . It makes it possible to absorb the jolts of production, avoiding pulling too hard on the sheath. It also allows the reel change by allowing time to connect the new sheath to the end of the old sheath.

On connaît des dispositifs d'accumulation de produit plat en bande souple comportant une boîte d'accumulation dans laquelle la bande pénètre et vient se coucher à plat en formant plusieurs nappes aller-retour. Un tel dispositif d'accumulation comporte cependant certains inconvénients. Certains produits plats ont tendance à vriller et à ne pas se disposer spontanément en nappes superposées, conduisant à la formation dans la boîte d'un mélange informe pouvant bloquer ou détériorer la bande.There are known devices for accumulation of flat product in a flexible band comprising an accumulation box in which the strip penetrates and comes to lie flat forming several rounds of return. Such an accumulation device however has certain disadvantages. Some flat products have a tendency to twist and not spontaneously dispose in superimposed sheets, leading to the formation in the box of a shapeless mixture that can block or damage the band.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

L'invention a pour objet un dispositif d'accumulation du type à boîte d'accumulation dans lesquels le risque de vrillage et de mauvais positionnement de la bande est diminué.The invention relates to an accumulator type accumulation device in which the risk of kinking and mis-positioning of the band is decreased.

BREVE DESCRIPTION DE L'INVENTIONBRIEF DESCRIPTION OF THE INVENTION

En vue de la réalisation de ce but, on propose un dispositif d'accumulation de produit plat en bande souple, comportant une boîte d'accumulation comportant un fond sur lequel, au moins lors de phases d'accumulation, la bande vient s'accumuler entre deux parois d'extrémité et deux parois latérales qui s'étendent en regard de bords de la bande, le dispositif d'accumulation comportant au moins un moyen de diminution du risque de vrillage de la bande dans la boîte d'accumulation.In order to achieve this goal, a device for accumulating flat product in a flexible band is proposed. comprising an accumulation box having a bottom on which, at least during accumulation phases, the strip is accumulated between two end walls and two side walls which extend opposite edges of the strip, the accumulation device comprising at least one means of reducing the risk of kinking of the band in the accumulation box.

Selon l'invention, la paroi d'extrémité la plus proche d'une entrée du produit dans la boîte d'alimentation porte un déflecteur propre à favoriser la mise en nappes du produit à l'intérieur de la boîte d'alimentation, le déflecteur étant associé à des moyens de vibration pour faire vibrer le déflecteur.According to the invention, the end wall closest to an inlet of the product in the feed box carries a deflector adapted to promote the layering of the product inside the feed box, the deflector being associated with vibration means for vibrating the deflector.

L'association du déflecteur avec des moyens de vibration du déflecteur facilite grandement la mise en nappes du produit plat ce qui limite un risque de vrillage du produit plat, notamment lorsqu'il s'agit d'une gaine en matière plastique thermorétractable pour la fabrication de manchons thermorétractés sur un récipient qui n'est pas d'une épaisseur uniforme ce qui génère inévitablement des problèmes de défilement dans la boîte d'accumulation et augmente le risque de vrillage de la gaine par rapport à un produit plat d'épaisseur uniforme. L'invention est donc particulièrement adaptée à limiter le vrillage d'une telle gaine.The association of the deflector with means of vibration of the deflector greatly facilitates the layering of the flat product which limits a risk of kinking the flat product, especially when it is a sheath of heat-shrinkable plastic material for manufacturing heat-shrink sleeves on a container that is not a uniform thickness which inevitably generates scroll problems in the accumulation box and increases the risk of twisting of the sheath relative to a flat product of uniform thickness. The invention is therefore particularly suitable for limiting the kinking of such a sheath.

Selon un mode de réalisation privilégié, le moyen de diminution du risque de vrillage de la bande dans la boîte d'accumulation est choisi parmi :

  • des rouleaux montés fous au moins au voisinage du fond et sur lesquels la bande vient reposer lors des phases d'accumulation ;
  • des moyens de circulation d'air pour établir dans la boîte une circulation d'air vers le fond de la boîte d'accumulation ;
  • des moyens de vibration d'au moins l'une des parois latérales ;
  • des moyens de réglage d'un écartement des parois latérales.
According to a preferred embodiment, the means of reducing the risk of kinking of the band in the accumulation box is chosen from:
  • rollers mounted idle at least in the vicinity of the bottom and on which the strip comes to rest during the accumulation phases;
  • air circulation means for establishing in the box a flow of air towards the bottom of the accumulation box;
  • means for vibrating at least one of the sidewalls;
  • means for adjusting a spacing of the side walls.

Divers essais ont permis de montrer que l'utilisation de l'un ou plusieurs de ces moyens permet de diminuer encore davantage le risque de vrillage de la bande dans la boîte d'accumulation.Various tests have shown that the use of one or more of these means can further reduce the risk of twisting of the band in the accumulation box.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

L'invention sera mieux comprise à la lumière de la description qui suit de modes particuliers de réalisation de l'invention en référence aux figures des dessins annexés parmi lesquelles :

  • la figure 1 est un schéma d'un circuit de produit plat en bande intégrant un dispositif d'accumulation selon un premier mode particulier de réalisation de l'invention, la boîte étant partiellement écorchée pour montrer l'intérieur de celle-ci ;
  • la figure 2 est une vue de face de la boîte d'accumulation du dispositif d'accumulation, l'une des parois d'extrémité ayant été enlevée ;
  • la figure 3 est une vue en perspective du dispositif d'accumulation des figures 1 et 2 ;
  • la figure 4 est une figure analogue à la figure 1 illustrant un schéma d'un circuit de produit plat en bande intégrant un dispositif d'accumulation selon un deuxième mode particulier de réalisation de l'invention, lors d'une phase de fonctionnement normal du circuit ;
  • la figure 5 est une figure analogue à la figure 4, montrant le même circuit de produit plat en bande lors d'une phase d'accumulation de celui-ci dans la boîte d'accumulation.
The invention will be better understood in the light of the following description of particular embodiments of the invention with reference to the figures of the accompanying drawings in which:
  • the figure 1 is a diagram of a flat product circuit strip incorporating an accumulation device according to a first embodiment of the invention, the box being partially cut away to show the interior thereof;
  • the figure 2 is a front view of the accumulation box of the accumulation device, one of the end walls having been removed;
  • the figure 3 is a perspective view of the accumulation device of figures 1 and 2 ;
  • the figure 4 is a figure similar to the figure 1 illustrating a diagram of a strip flat product circuit incorporating an accumulation device according to a second particular embodiment of the invention, during a normal operation phase of the circuit;
  • the figure 5 is a figure similar to the figure 4 , showing the same strip flat product circuit during an accumulation phase thereof in the accumulation box.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

Selon un premier mode particulier de réalisation illustré aux figures 1 à 3, le dispositif d'accumulation de l'invention est destiné à être inséré dans une installation organisant la circulation d'un produit plat en bande, par exemple une gaine en matière plastique thermorétractable. Le circuit comporte une bobine 2 formant une source de bande 1. La bande 1 est ensuite engagée dans un dispositif amortisseur 3 à pantin comportant une série de rouleaux fixes 4 et une série de rouleaux mobiles 5 montés sur un levier articulé 6 sur un pivot 7 et entre lesquels la bande 1 s'étend. La bande 1 est ensuite emmenée en direction d'un dispositif d'accumulation 10 selon l'invention.According to a first particular embodiment illustrated in Figures 1 to 3 , the storage device of the invention is intended to be inserted in an installation organizing the circulation of a strip flat product, for example a sheath of heat-shrinkable plastic material. The circuit comprises a coil 2 forming a strip source 1. The strip 1 is then engaged in a cushioning device 3 to a jumper comprising a series of fixed rollers 4 and a series of movable rollers 5 mounted on an articulated lever 6 on a pivot 7 and between which the band 1 extends. The band 1 is then led towards an accumulation device 10 according to the invention.

Celui-ci comporte une boîte d'accumulation 11 dont on voit ici en tranche les parois d'extrémité 12, le plafond 13 et le fond 14. La boîte d'accumulation 11 est par ailleurs fermée par deux parois latérales 30 visibles en tranche à la figure 2. La bande 1 entre ici dans la boîte d'accumulation 11 par une ouverture 15 pratiquée dans le plafond 13 en étant guidée par un rouleau motorisé d'entrée 16. Puis la bande ressort ici par une ouverture 17 pratiquée dans l'une des parois d'extrémité 12, en étant guidée par un rouleau motorisé de sortie 18.It comprises an accumulation box 11 which is seen here in slice the end walls 12, the ceiling 13 and the bottom 14. The accumulation box 11 is also closed by two side walls 30 visible in slice to the figure 2 . The band 1 enters here in the accumulation box 11 through an opening 15 made in the ceiling 13 being guided by a motorized input roller 16. Then the band comes out here through an opening 17 formed in one of the walls end 12, guided by a motorized output roller 18.

Bien sûr, les rouleaux d'entrée 16 et de sortie 18 sont associés à des contre-rouleaux pour pincer la bande 1 et la forcer à avancer. Ici, une barre antistatique 19 est disposée à l'entrée de la boîte d'accumulation 11 pour empêcher toute accumulation d'électricité statique dans la boîte d'accumulation qui pourrait perturber l'empilement des nappes de bande les unes sur les autres. En variante, le contre-rouleau du rouleau d'entrée 16 peut être prévu du type antistatique.Of course, the input rollers 16 and output rollers 18 are associated with counter-rollers for gripping the web 1 and forcing it to advance. Here, an antistatic bar 19 is disposed at the inlet of the accumulation box 11 to prevent any accumulation of static electricity in the accumulation box that could disrupt the stacking of webs on each other. Alternatively, the counter roll of the input roll 16 may be provided of the antistatic type.

La vitesse de rotation du rouleau de sortie 18 est bien sûr adaptée au rythme d'appel de bande par la machine de manchonnage disposée en aval de la boîte d'accumulation 11. Quant à la vitesse de rotation du rouleau d'entrée 16, elle est normalement réglée pour être identique à celle du rouleau de sortie 18, sauf dans les phases d'accumulation où elle est supérieure à celle du rouleau de sortie 18, provoquant ainsi l'accumulation de la bande en nappes dans la boîte d'accumulation 11, comme illustré ici. Lors d'une telle phase, le brin de bande qui sort de la boîte d'accumulation provient d'une partie de la bande 1 s'étendant sous les nappes constituées par la bande 1. Bien sûr, la figure 1 est schématique, et le dispositif d'accumulation 11 peut voir se former des dizaines, voire des centaines de nappes à l'intérieur de la boîte d'accumulation 11. On remarquera que les nappes sont posées les unes sur les autres, sans vrillage, grâce aux dispositions détaillées plus loin.The speed of rotation of the output roller 18 is of course adapted to the rate of tape call by the sleeve machine disposed downstream of the accumulation box 11. As for the speed of rotation of the input roll 16, it is normally set to be identical to that of the output roller 18, except in the accumulation phases where it is greater than that of the output roller 18, thus causing the accumulation of the web in the accumulation box 11 as shown here. During such a phase, the strand of tape coming out of the accumulation box comes from a part of the strip 1 extending under the layers formed by the strip 1. Of course, the figure 1 is schematic, and the accumulation device 11 can see the formation of tens or even hundreds of layers inside the accumulation box 11. It will be noted that the layers are laid on one another, without twisting, thanks to the provisions detailed below.

Le fonctionnement de l'ensemble est le suivant. Lors du fonctionnement normal de l'installation, la bande 1 se dévide progressivement de la bobine 2 à la vitesse imposée par la machine en aval du dispositif d'accumulation. La bande 1 traverse alors la boîte d'accumulation 11 sans faire de nappes. Si, grâce à un indicateur de niveau 50 disposé à proximité de la bobine 2, il est détecté que la bobine est bientôt entièrement dévidée, le rouleau d'entrée 16 est alors commandé pour tourner plus rapidement que le rouleau de sortie 18, de sorte que la bande est progressivement accumulée dans la boîte d'accumulation 11. Quant la bobine est entièrement dévidée, un capteur de fin de bande 51 disposé en amont de la boîte d'accumulation 11 repère la fin de la bande, ce qui commande l'arrêt du rouleau d'entrée 16. La fin de bande est alors immobilisée sensiblement au-dessus de la boîte d'accumulation 11, où se trouve une table de raccordement (non représentée ici). Pendant que l'ancienne bande accumulée se dévide de la boîte d'accumulation 11, un opérateur retire la bobine vide et la remplace par une bobine pleine. Le début de la nouvelle bande est amenée dans le dispositif amortisseur 3 jusqu'à venir à proximité de la fin de l'ancienne bande. L'opérateur procède au raccordement des deux bandes, et quand ce raccordement est opéré, le rouleau d'entrée 16 est de nouveau mis en rotation. La quantité de bande accumulée dans la boîte d'accumulation 11 est ajustée pour laisser le temps à l'opérateur, compte tenu de la vitesse de défilement de la bande en sortie de la boîte d'accumulation, de changer la bobine et de raccorder la nouvelle bande à l'ancienne bande.The operation of the set is as follows. During normal operation of the installation, the band 1 is progressively unwound from the coil 2 at the speed imposed by the machine downstream of the accumulation device. The band 1 then passes through the accumulation box 11 without making tablecloths. If, thanks to a level indicator 50 disposed near the coil 2, it is detected that the coil is soon fully unwound, the input roller 16 is then controlled to rotate faster than the output roller 18, so that the band is gradually accumulated in the accumulation box 11. As the reel is fully unwound, an end of band sensor 51 disposed upstream of the accumulation box 11 marks the end of the strip, which controls the stopping of the input roll 16. The end of the tape is then immobilized substantially above the accumulation box 11, where there is a connection table (not shown here). As the old accumulated band unwinds from the accumulation box 11, an operator removes the empty spool and replaces it with a full spool. The beginning of the new band is brought into the damping device 3 until coming close to the end of the old band. The operator proceeds to connect the two strips, and when this connection is made, the input roll 16 is rotated again. The amount of tape accumulated in the accumulation box 11 is adjusted to allow the operator time, taking into account the speed of travel of the tape output of the accumulation box, to change the coil and connect the new band to the old band.

Tous les rouleaux mentionnés ici ont des axes de rotation parallèles et perpendiculaires à une direction de défilement de la bande 1 (et donc également perpendiculaires aux parois latérales 30).All the rollers mentioned here have axes of rotation parallel and perpendicular to a running direction of the band 1 (and therefore also perpendicular to the side walls 30).

Les dispositions de l'invention visent plus particulièrement à supprimer autant que possible, et en tout état de cause à diminuer le risque que la bande ne se vrille ou se positionne mal dans la boîte d'accumulation 11.The provisions of the invention are more specifically intended to eliminate as much as possible, and in any case to reduce the risk that the tape does not twist or is positioned poorly in the accumulation box 11.

Selon un aspect de l'invention, le fond 14 de la boîte d'accumulation 11 porte des rouleaux fous 20 sur lesquels la bande 1 vient reposer lors des phases d'accumulation. Les rouleaux fous 20 facilitent la sortie de la bande par l'ouverture 17 en évitant que celle-ci ne soit trop freinée par le poids des nappes de bandes accumulées sur le brin sortant. Bien évidemment, l'axe de rotation des rouleaux fous 14 est parallèle aux axes de rotation des autres rouleaux.According to one aspect of the invention, the bottom 14 of the accumulation box 11 carries idle rollers 20 on which the band 1 comes to rest during the accumulation phases. The idle rollers 20 facilitate the exit of the strip through the opening 17 while avoiding that it is too slowed down by the weight of the layers of bands accumulated on the outgoing strand. Of course, the axis of rotation of the idler rollers 14 is parallel to the axes of rotation of the other rollers.

Selon un autre aspect de l'invention, la boîte d'accumulation 11 est équipée de moyens de circulation d'air pour favoriser le bon positionnement des nappes de bande dans la boîte d'accumulation 11 lors des phases d'accumulation. Les moyens de circulation d'air comportent ici des extracteurs d'air 21 installant une dépression dans un caisson 22 disposé sous le fond 14 de la boîte d'accumulation 11. Le fond 14 de la boîte d'accumulation 11 est perforé de sorte que la dépression ainsi installée provoque dans la boîte d'accumulation 11 une circulation d'air du haut vers le bas (donc vers le fond de la boîte d'accumulation) comme illustré par les flèches sur la figure 1, tendant à plaquer les nappes de la bande 1 les unes contre les autres, et ainsi à faciliter leur empilement dans la boîte d'accumulation 11. Il conviendra bien évidemment de prévoir des orifices dans le plafond 13 permettant l'appel d'air.According to another aspect of the invention, the accumulation box 11 is equipped with air circulation means to promote the proper positioning of the webs in the accumulation box 11 during the accumulation phases. The air circulation means here comprise air extractors 21 installing a vacuum in a box 22 disposed under the bottom 14 of the accumulation box 11. The bottom 14 of the accumulation box 11 is perforated so that the vacuum thus installed causes in the accumulation box 11 a flow of air from the top down (and thus towards the bottom of the accumulation box) as illustrated by the arrows on the figure 1 , tending to press the plies of the strip 1 against each other, and thus facilitate their stacking in the accumulation box 11. It will obviously be necessary to provide orifices in the ceiling 13 for the call of air.

Selon encore un autre aspect de l'invention plus particulièrement visible à la figure 2, les parois latérales 30 sont munies de vibreurs 31 permettant de faire vibrer les parois latérales 30 pendant l'accumulation de bande 1 dans la boîte d'accumulation 11. La vibration des parois latérales 30 empêche les bords de la bande 1 de s'accrocher sur les parois latérales, ce qui peut provoquer un vrillage de la bande 1. De préférence, les parois latérales 31 sont en matière transparente, afin de vérifier le bon empilement des nappes de bande 1 dans la boîte d'accumulation 11.According to yet another aspect of the invention more particularly visible in the figure 2 , the side walls 30 are provided with vibrators 31 for vibrating the side walls 30 during the accumulation of tape 1 in the accumulation box 11. The vibration of the side walls 30 prevents the edges of the band 1 from clinging on the side walls, which can cause a twisting of the strip 1. Preferably, the side walls 31 are made of transparent material, in order to check the good stack of webs 1 in the accumulation box 11.

Selon encore un autre aspect de l'invention, les parois latérales 30 sont associées à des moyens d'écartement réglables 40 permettant d'ajuster la distance entre les faces des parois latérales en regard de sorte que cette distance soit ajustée à la largeur de la bande 1, en laissant un faible jeu (typiquement quelques millimètres pour une bande de 10 centimètres de largeur). Ici, les parois latérales 30 sont montées chacune sur deux supports 41 coopérant par une liaison de type vis-écrou avec des arbres 42 respectifs (un seul est visible à la figure 2) dont les rotations sont synchronisées, par exemple au moyen d'une courroie. Chaque arbre 42 est reçu à rotation dans un palier 44 solidaire du fond 13 de la boîte, et est fileté à ses deux extrémités en sens inverse, de sorte qu'une rotation d'un des arbres provoque un écartement ou un rapprochement des deux parois latérales 30 symétriquement par rapport à un plan médian de défilement de la bande. A cette fin, l'un des arbres 42 est ici équipé d'une manivelle 43 pour sa manoeuvre. Les parois latérales 30 sont ainsi suspendues par leurs supports 41, ce qui facilite leur vibration sous l'effet des vibreurs 31.According to yet another aspect of the invention, the side walls 30 are associated with adjustable spacing means 40 for adjusting the distance between the faces of the side walls opposite so that this distance is adjusted to the width of the band 1, leaving a small clearance (typically a few millimeters for a band 10 centimeters wide). Here, the side walls 30 are each mounted on two supports 41 cooperating by a screw-nut type connection with respective shafts 42 (only one is visible at the figure 2 ) whose rotations are synchronized, for example by means of a belt. Each shaft 42 is rotatably received in a bearing 44 integral with the bottom 13 of the box, and is threaded at its two ends in the opposite direction, so that rotation of one of the shafts causes spacing or bringing the two walls closer together. lateral 30 symmetrically with respect to a median plane of scrolling of the strip. To this end, one of the shafts 42 is here equipped with a crank 43 for its operation. The side walls 30 are thus suspended by their supports 41, which facilitates their vibration under the effect of the vibrators 31.

Les dispositions de l'invention permettent de diminuer le risque de vrillage de la bande dans la boîte d'accumulation. Le déposant a pu vérifier que le dispositif d'accumulation convient pour des gaines de matière plastique thermorétractée scellée pour la pose de manchons thermorétractés, les gaines ayant diverses épaisseurs (20 à 150 micromètres), en divers matériaux (PVC,PET, OPS...) défilant à des vitesses convenant pour la pose de 20 à 600 manchons par minute, les manchons ayant des hauteurs de 15 à 250 millimètres. Aucun vrillage n'a été constaté.The provisions of the invention can reduce the risk of twisting of the band in the accumulation box. The applicant has been able to verify that the accumulation device is suitable for sealed heat-shrink plastic sleeves for the fitting of heat-shrink sleeves, sheaths having various thicknesses (20 to 150 micrometers), made of various materials (PVC, PET, OPS, etc.). .) traveling at speeds suitable for laying 20 to 600 sleeves per minute, the sleeves having heights of 15 to 250 millimeters. No twisting was found.

Selon maintenant un deuxième mode particulier de réalisation de l'invention illustré aux figures 4 et 5 sur lesquelles les éléments communs avec le mode de réalisation précédents portent une référence augmentée d'une centaine, la bande 101 est emmenée en direction d'un dispositif d'accumulation 110 qui comporte une boîte d'accumulation 111 dont on voit ici en tranche les parois d'extrémité 112, le plafond 113 et le fond 114. La boîte d'accumulation 111 est par ailleurs fermée par deux parois latérales non représentées ici dont l'une au moins est transparente. La bande 101 entre ici dans la boîte d'accumulation 111 par une ouverture 115 pratiquée dans le plafond 113 en étant guidée par un rouleau motorisé d'entrée 116 associé à son contre-rouleau. Puis la bande ressort ici par une ouverture 117 pratiquée dans l'une des parois d'extrémité 112, en étant guidée par un rouleau de sortie 118.According to now a second particular embodiment of the invention illustrated in Figures 4 and 5 sure which elements common with the previous embodiment have a reference increased by a hundred, the band 101 is taken to an accumulation device 110 which comprises an accumulation box 111 which here is sliced the walls end 112, the ceiling 113 and the bottom 114. The accumulation box 111 is further closed by two side walls not shown here, at least one of which is transparent. The band 101 enters here in the accumulation box 111 through an opening 115 made in the ceiling 113 being guided by a motorized input roller 116 associated with its against-roller. Then the strip comes out here through an opening 117 made in one of the end walls 112, being guided by an exit roller 118.

Un rouleau motorisé d'extraction 160 est ici disposé à l'extérieur pour faire sortir la bande de la boîte 111, le rouleau motorisé 160 étant associé à une brosse 161 pour maintenir une tension constante en sortie du dispositif d'accumulation. Par ailleurs, un étrangleur 162 est disposé en regard du rouleau de sortie 118 pour éviter la sortie simultanée de plusieurs nappes de bande.A motorized extraction roller 160 is here disposed outside to pull the strip out of the box 111, the motorized roller 160 being associated with a brush 161 to maintain a constant voltage output of the accumulation device. Furthermore, a choke 162 is disposed facing the output roller 118 to prevent the simultaneous output of several webs.

On reconnaît bien évidemment les rouleaux fous 120 sur lesquels la bande vient reposer. Ici, les rouleaux fous 120 sont disposés non seulement à proximité du fond 114, mais également le long d'un brin de sortie de la bande pour faciliter ladite sortie, mais également les moyens de circulation d'air 121 instaurant un flux d'air vertical dans la boîte d'accumulation 111.Obviously recognizing the idle rollers 120 on which the tape comes to rest. Here, the idle rollers 120 are arranged not only close to the bottom 114, but also along an exit strand of the strip to facilitate said outlet, but also the air circulation means 121 which introduces a flow of air vertical in the accumulation box 111.

Selon l'invention, la paroi d'extrémité 112 opposée à la celle portant le rouleau de sortie 118 porte ici un déflecteur 164 propre à favoriser la mise en nappes de la bande et qui est ici équipé d'un vibreur 165 pour mettre en mouvement ce déflecteur afin qu'il crée un mouvement des nappes vers la sortie de la boîte d'accumulation 111.According to the invention, the end wall 112 opposite the one carrying the exit roller 118 here carries a baffle 164 suitable for promoting the laying of webs and which is here equipped with a vibrator 165 to implement move this deflector so that it creates a movement of the sheets to the outlet of the accumulation box 111.

En outre, le dispositif d'accumulation est équipé d'un capteur de niveau 166 pour gérer le niveau minimal de nappes dans la boîte d'accumulation lors d'une phase d'accumulation. Le capteur de niveau 166 permet de gérer la vitesse du rouleau d'entrée 116.In addition, the accumulation device is equipped with a level sensor 166 for managing the minimum level of layers in the accumulation box during an accumulation phase. The level sensor 166 manages the speed of the input roll 116.

Le circuit de la bande en amont du dispositif d'alimentation 110 comporte une bobine 102 formant une source de bande 1. La bande 1 est renvoyée vers l'entrée de la boîte d'alimentation 111 au moyen de cylindres 167 et 168 formant coussin d'air et équipés de bagues de guidage latérales pour aider au recentrage de la bande, notamment lors de l'utilisation de bobines trancannées. On reconnaît le capteur 151 de fin de bande, disposé ici immédiatement en amont du cylindre de renvoi 168, ainsi que le capteur de niveau 150 de la bobine 102.The circuit of the strip upstream of the feeder 110 comprises a coil 102 forming a strip source 1. The strip 1 is returned to the inlet of the feed box 111 by means of cylinders 167 and 168 forming a cushion. air and equipped with lateral guide rings to assist in the recentering of the band, especially when using truncated coils. The end-of-band sensor 151, located here immediately upstream of the return cylinder 168, and the level sensor 150 of the coil 102 are recognized.

L'utilisation du dispositif des figures 4 et 5 est le suivant.The use of the device Figures 4 and 5 is the next.

En fonctionnement normal illustré à la figure 4, c'est-à-dire lorsque le capteur de niveau 150 n'a pas détecté la fin prochaine du dévidement de la bande 101 de la bobine 101, une portion lâche 180 de bande est formée à l'intérieur même de la boîte d'accumulation 111 en jouant respectivement sur les vitesses de rotation du rouleau d'entrée 116 et du rouleau d'extraction 160. Pour cela, il suffit, à titre temporaire, de faire tourner plus rapidement le rouleau d'entrée que le rouleau d'extraction, afin de générer ladite portion de bande qui permet d'absorber les à-coups d'appel de bande en aval du dispositif d'accumulation de l'invention, mais sans pour autant former des nappes à l'intérieur de la boîte d'alimentation, pour éviter les risques de vrillage de la bande.In normal operation illustrated at figure 4 that is, when the level sensor 150 has not detected the near completion of unwinding of the web 101 of the web 101, a loose web portion 180 is formed within the web box itself. accumulation 111 by respectively playing on the rotational speeds of the input roller 116 and the extraction roller 160. For this, it is sufficient, temporarily, to rotate more quickly the input roll that the roller of extraction, in order to generate said portion of band that absorbs the band call jolts downstream of the accumulation device of the invention, but without forming sheets in the box feeding, to avoid the risk of twisting the belt.

On obtient ainsi le même effet d'amortissement que dans le mode de réalisation précédent, mais sans utiliser de dispositif amortisseur externe.This gives the same damping effect as in the previous embodiment, but without using external damping device.

Lors d'une phase d'accumulation illustrée à la figure 5 et déclenchée lorsque le capteur de niveau 150 détecte le dévidement proche de la bobine 102, des nappes sont formées à l'intérieur de la boîte d'alimentation, comme précédemment. Le déflecteur 164 vibrant facilite la formation des nappes en renvoyant la bande vers l'autre paroi d'extrémité 112.During an accumulation phase illustrated in figure 5 and triggered when the level sensor 150 detects the unwinding near the coil 102, webs are formed inside the feed box, as before. The vibrating baffle 164 facilitates the formation of the plies by returning the strip towards the other end wall 112.

L'invention n'est bien sûr pas limitée à ce qui vient d'être décrit. En particulier, bien que les moyens de l'invention sont ici mis en oeuvre en combinaison les uns avec les autres, l'invention vise également des réalisations dans lesquelles au moins l'un de ces moyens est mis en oeuvre.The invention is of course not limited to what has just been described. In particular, although the means of the invention are here used in combination with each other, the invention also relates to embodiments in which at least one of these means is implemented.

En outre, certains moyens illustrés uniquement sur l'un des modes particuliers de réalisation illustrés peuvent bien sûr être montés sur l'autre des modes de réalisation illustrés, ou sur d'autres variantes de réalisation de l'invention.In addition, some means illustrated only on one particular embodiment illustrated can of course be mounted on the other embodiment illustrated, or other embodiments of the invention.

Par ailleurs, lesdits moyens sont susceptibles de nombreuses variantes de réalisation. Par exemple, bien qu'ici les parois latérales sont toutes deux équipées d'un vibreur, on pourra se contenter de faire vibrer une seule des parois. De même, bien que les moyens d'écartement provoquent un déplacement symétrique des parois latérales par rapport à un plan médian, on pourra ne déplacer qu'une seule des parois latérales, si l'installation comporte des moyens de centrage de la bande dans l'espace ainsi défini.Moreover, said means are capable of numerous variants. For example, although here the side walls are both equipped with a vibrator, we can simply vibrate a single wall. Similarly, although the spacing means causes a symmetrical displacement of the side walls with respect to a median plane, only one of the side walls can be moved, if the installation comprises means for centering the band in the center. space thus defined.

Il est bien évident que l'opportunité d'utiliser un dispositif amortisseur (celui à pantin décrit ici ou tout autre dispositif amortisseur), qu'il soit disposé en amont du dispositif d'accumulation ou en aval de celui-ci dépend bien sûr du cas d'espèce et des caractéristiques de l'installation.It is obvious that the opportunity to use a damping device (the one with a puppet described here or any other damping device), whether it is arranged upstream of the accumulation device or downstream of it depends of course on the case and the characteristics of the installation.

Claims (7)

Dispositif d'accumulation de produit plat en bande souple, comportant une boîte d'accumulation (11) comportant un fond (14 ;114) sur lequel, au moins lors de phases d'accumulation, la bande vient s'accumuler entre deux parois d'extrémité (12 ;112) et deux parois latérales (30 ;130) qui s'étendent en regard de bords de la bande, le dispositif d'accumulation comportant au moins un moyen de diminution du risque de vrillage de la bande dans la boîte d'accumulation, le dispositif d'accumulation étant caractérisé en ce que la paroi d'extrémité (12) la plus proche d'une entrée du produit dans la boîte d'alimentation porte un déflecteur (164) propre à favoriser la mise en nappes du produit à l'intérieur de la boîte d'alimentation, le déflecteur étant associé à des moyens de vibration (165) pour faire vibrer le déflecteur.Device for accumulation of flat product in flexible band, comprising an accumulation box (11) having a bottom (14; 114) on which, at least during accumulation phases, the band is accumulated between two walls of end (12; 112) and two side walls (30; 130) which extend opposite edges of the strip, the accumulation device including at least one means of reducing the risk of twisting of the strip in the box accumulation device, the accumulation device being characterized in that the end wall (12) closest to an inlet of the product in the feed box carries a deflector (164) suitable for promoting the laying of webs of the product inside the feed box, the deflector being associated with vibration means (165) for vibrating the deflector. Dispositif selon la revendication 1, dans lequel ledit moyen de diminution du risque de vrillage de la bande dans la boîte d'accumulation est choisi parmi : - des rouleaux (20 ;120) montés fous au moins au voisinage du fond et sur lesquels la bande vient reposer lors des phases d'accumulation ; - des moyens de circulation d'air (21 ;121) pour établir dans la boîte une circulation d'air vers le fond de la boîte d'accumulation ; - des moyens de vibration (31) d'au moins l'une des parois latérales ; - des moyens de réglage (41,42,43) d'un écartement des parois latérales. Device according to claim 1, wherein said means for reducing the risk of kinking of the band in the accumulation box is chosen from: rollers (20; 120) mounted idle at least in the vicinity of the bottom and on which the strip comes to rest during the accumulation phases; - Air circulation means (21; 121) for establishing in the box a flow of air to the bottom of the accumulation box; - Vibration means (31) of at least one of the side walls; - adjustment means (41,42,43) of a spacing of the side walls. Dispositif d'accumulation selon la revendication 2, dans lequel les moyens de circulation d'air comportent au moins un extracteur d'air (21 ;121) disposé pour engendrer une dépression dans un caisson (22 ;122) disposé sous le fond de la boîte d'accumulation, le fond étant perforé pour provoquer dans la boîte d'accumulation la circulation d'air vers le fond de celle-ci.Storage device according to claim 2, wherein the air circulation means comprise at least one air extractor (21; 121) arranged to generate a vacuum in a box (22; 122) disposed under the bottom of the accumulation box, the bottom being perforated to cause in the accumulation box the air flow to the bottom thereof. Dispositif d'accumulation selon la revendication 2, dans lequel les moyens de vibration comportent au moins un vibreur (31) directement solidaire d'une des parois latérales (30).Storage device according to claim 2, wherein the vibration means comprise at least one vibrator (31) directly integral with one of the side walls (30). Dispositif d'accumulation selon la revendication 2, dans lequel les moyens de réglage d'écartement des parois latérales comportent deux arbres parallèles (42) à rotation synchronisée, les arbres portant des supports (41) solidaires des parois latérales (30) coopérant avec les arbres par une liaison de type vis-écrou, les arbres étant filetés à leurs extrémités en sens inverse de sorte qu'une rotation d'un des arbres provoque un écartement ou un rapprochement des parois latérales (30) symétriquement par rapport à un plan médian de défilement de la bande.Storage device according to claim 2, wherein the spacing means of the side walls comprise two parallel shafts (42) with synchronized rotation, the shafts bearing supports (41) integral with the side walls (30) cooperating with the shafts by a screw-and-nut connection, the shafts being threaded at their ends in the opposite direction so that a rotation of one of the shafts causes the side walls (30) to be spaced or brought closer symmetrically with respect to a median plane scrolling the tape. Installation de circulation de produit en bande plat, comportant un dispositif d'accumulation selon l'une des revendications précédentes, associé à un dispositif amortisseur (4,5,6,7) disposé en amont ou en aval de celui-ci et adapté à absorber des à-coups d'appel de bande en aval du dispositif amortisseur.Flat belt product circulation installation, comprising a storage device according to one of the preceding claims, associated with a damping device (4,5,6,7) arranged upstream or downstream thereof and adapted to absorb band call jolts downstream of the damping device. Procédé d'utilisation d'un dispositif d'accumulation selon l'une des revendications 1 à 6, comportant les étapes de : - lors d'un fonctionnement normal, jouer sur les vitesses d'entrée et de sortie de la bande dans la boîte d'accumulation (111) pour y former et maintenir en permanence un brin lâche (180) de bande ; - lors d'une phase d'accumulation préalable à un changement de source de bande, jouer sur les vitesses d'entrée et de sortie de la bande dans la boîte d'accumulation (111) pour y former des nappes superposées de bande. A method of using an accumulation device according to one of claims 1 to 6, comprising the steps of: - During normal operation, play on the input and output speeds of the belt in the accumulation box (111) to form and permanently maintain a loose strand (180) of tape; - during a phase of accumulation prior to a change of tape source, to play on the speeds of entry and leaving the strip in the accumulation box (111) to form superimposed webs of tape.
EP12158131.8A 2011-03-10 2012-03-05 Device for accumulating flat products on a flexible belt Not-in-force EP2497730B1 (en)

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PL12158131T PL2497730T3 (en) 2011-03-10 2012-03-05 Device for accumulating flat products on a flexible belt

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FR1151982A FR2972434B1 (en) 2011-03-10 2011-03-10 FLEXIBLE FLAT FLAT PRODUCT STORAGE DEVICE

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EP2497730A1 true EP2497730A1 (en) 2012-09-12
EP2497730B1 EP2497730B1 (en) 2018-01-03

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US (1) US9120637B2 (en)
EP (1) EP2497730B1 (en)
CN (1) CN102674074B (en)
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FR (1) FR2972434B1 (en)
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20110725A1 (en) * 2011-12-16 2013-06-17 Gd Spa METHOD AND MACHINE FOR THE PRODUCTION OF ENVELOPES CONTAINING FIBER MATERIAL.
CN102874632B (en) * 2012-10-12 2015-01-07 温州鸿马科技有限公司 Cloth storage machine
CN103072839B (en) * 2013-01-06 2016-08-03 四川江瀚工业股份有限公司 Automatic sectional material storage device
CN103662214B (en) * 2013-12-05 2015-10-28 浙江双友物流器械股份有限公司 A kind of packing method of suspender belt
CN105775826B (en) * 2016-03-22 2018-05-29 广东中天科技光缆有限公司 It is a kind of for the belt machine of communications optical cable and aluminium strip connection method
CN105836521A (en) * 2016-05-17 2016-08-10 苏州市晨彩纺织研发有限公司 Textile cloth storage device
CN106494921A (en) * 2016-12-26 2017-03-15 四川江虹线缆制造有限公司 One kind stores up carrying device for producing optical cable aluminium strip
CN108675032A (en) * 2018-06-29 2018-10-19 常州永盛新材料装备股份有限公司 A kind of storage tank of flexible parent metal overlength amount of storage
CN109626120B (en) * 2018-12-26 2020-11-03 嘉兴群易信息科技有限公司 Folding extrusion type cable stranding device
CN110589556B (en) * 2019-09-23 2024-05-21 浙江善力高科新材料有限公司 Uninterrupted feeding device for mesh cloth
CN112345857B (en) * 2020-11-02 2021-07-06 山东华冠智能卡有限公司 Full automated inspection of graphite alkene RFID label trades mark device
CN113200394A (en) * 2021-04-21 2021-08-03 苏州瀚川智能科技股份有限公司 Strip continuous feeding device
CN113369243B (en) * 2021-05-25 2022-11-01 广东核电合营有限公司 Laser gun storage device for nuclear power station and laser decontamination recovery device
KR102678108B1 (en) * 2022-09-02 2024-06-25 주식회사 대한아이엠 Filter material supply delay device for drainage material

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH633230A5 (en) * 1978-11-06 1982-11-30 Sig Schweiz Industrieges Apparatus for the intermittent feed of wrapping material to a packaging machine
US4387843A (en) * 1980-05-05 1983-06-14 Electro-Sound Inc. Loop bin for magnetic tape recording apparatus
GB2249782A (en) * 1990-11-19 1992-05-20 Tokyo Automatic Mach Works Web feeding mechanism
JPH05231502A (en) * 1992-02-24 1993-09-07 Jatco Corp Automatic transmission
JP2001287859A (en) * 2000-04-04 2001-10-16 Bridgestone Corp Continuous supplying method and device for strip member
DE10163762A1 (en) * 2001-12-27 2003-07-17 Hauni Maschinenbau Ag Wristwatch is provided with cooling air channels on its reverse side, so that a larger watch face can be employed and user discomfort in hot conditions or during exercise is reduced
EP1362814A1 (en) * 2002-05-17 2003-11-19 Agfa-Gevaert AG Device for intermediate storage of weblike material

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH633230A5 (en) * 1978-11-06 1982-11-30 Sig Schweiz Industrieges Apparatus for the intermittent feed of wrapping material to a packaging machine
US4387843A (en) * 1980-05-05 1983-06-14 Electro-Sound Inc. Loop bin for magnetic tape recording apparatus
GB2249782A (en) * 1990-11-19 1992-05-20 Tokyo Automatic Mach Works Web feeding mechanism
JPH05231502A (en) * 1992-02-24 1993-09-07 Jatco Corp Automatic transmission
JP2001287859A (en) * 2000-04-04 2001-10-16 Bridgestone Corp Continuous supplying method and device for strip member
DE10163762A1 (en) * 2001-12-27 2003-07-17 Hauni Maschinenbau Ag Wristwatch is provided with cooling air channels on its reverse side, so that a larger watch face can be employed and user discomfort in hot conditions or during exercise is reduced
EP1362814A1 (en) * 2002-05-17 2003-11-19 Agfa-Gevaert AG Device for intermediate storage of weblike material

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MX2012002858A (en) 2012-09-10
CN102674074A (en) 2012-09-19
CN102674074B (en) 2015-01-14
EP2497730B1 (en) 2018-01-03
US9120637B2 (en) 2015-09-01
FR2972434A1 (en) 2012-09-14
PL2497730T3 (en) 2018-07-31
ES2661231T3 (en) 2018-03-28
US20120228353A1 (en) 2012-09-13
FR2972434B1 (en) 2013-12-27

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