EP0739721B1 - Device for treating metallized, used webs in a machine for transferring metallized images on flat elements - Google Patents
Device for treating metallized, used webs in a machine for transferring metallized images on flat elements Download PDFInfo
- Publication number
- EP0739721B1 EP0739721B1 EP96106321A EP96106321A EP0739721B1 EP 0739721 B1 EP0739721 B1 EP 0739721B1 EP 96106321 A EP96106321 A EP 96106321A EP 96106321 A EP96106321 A EP 96106321A EP 0739721 B1 EP0739721 B1 EP 0739721B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grinder
- fact
- bin
- metallized
- waste
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
- B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
- B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
- B41F19/064—Presses of the reciprocating type
- B41F19/068—Presses of the reciprocating type motor-driven
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2219/00—Printing presses using a heated printing foil
- B41P2219/20—Arrangements for moving, supporting or positioning the printing foil
Definitions
- the invention relates to a tape processing device used metallics in a metallized image transfer machine on plate elements, such as sheets of cardboard, paper, material plastic, etc.
- the invention relates more particularly to a device used in a platen press comprising a fixed upper base and a movable lower bed base, bed bases between which the cardboard sheet is brought, for printing thereon, according to given reasons, a film metallized from a conductive strip between this sheet and one of the box springs.
- Such a platen press usually comprises first of all a insertion station in which a stack of sheets is installed, each sheet being successively removed from the top of the pile to be sent on a margin table. On this table, each sheet is placed in position against front and side cleats before being grabbed at its front edge by a series of clamps mounted along a crossbar, of which each end is attached to a train of side chains carrying the bar, therefore the sheet, in the following treatment stations.
- the processing stations can be a film transfer station metallized, possibly combined with cutting tools, followed a waste ejection station. These treatment stations are finally followed by a receiving station in which each sheet released by the clamps falls squarely on top of an accumulating pile on an output pallet.
- An independent device for transporting metallic strips parallel comprises successively a support of supply coils of bands, means of intermittent unwinding and advancing of the bands, guide means for guiding these strips parallel to the direction of scrolling of the sheets between the plates, then guide in clearance around of one of the press plates, a tensioning mechanism to put under tension these bands at least along their trajectory between the plates, and a device for discharging used tapes from the machine, usually through a side window.
- Metallic strips having a running speed intermittent identical go through the same means of advance and unfolding, while the bands having a different speed pass through second, even third means of duplication and advance, the tensioning mechanism being adjusted in this case according to the largest speed.
- the tensioning mechanism usually consists of a roller driven tension is continuously at a speed substantially higher than the speed of advance of the metallized strip, ie of a tension roller driven sequentially at a speed significantly higher than the speed in advance of the metallic strip.
- the strip is pinched against this roller by at least one pressure roller whose pressure is adjustable. Leaving this roll, the strip makes a right angle around a deflection bar towards a side window of the machine frame where it is ejected by two rotating brushes to fall into a bin or bag.
- knives located near the tension roller cut the strip longitudinally into several strips.
- the object of the present invention is a device for processing waste, consisting of used metallized strips, cut longitudinally and arriving possibly with different speeds, this device making it possible to reduce the volume of this waste as much as possible to dispose of it more compact bags, or even by a pipe.
- the design of this device must however remain simple for better reliability of operation over time and a reasonable cost of production.
- the mill consists of two parallel cylinders located opposite and carrying interlocking knives to cut waste transversely and longitudinally.
- the used strips are cut into waste small dimensions, like confetti, which then fill the container with much more dense.
- the interval between two container exchanges then becomes longer, which frees up the operator accordingly.
- the reservoir comprises, in its upper part, a downward oblique deflector deflecting the initial fall used bands towards the middle of the tank.
- a blower forms an air film on this deflector to eliminate all friction and thus avoid any heap of tape at this level. So the accumulation of bands used in the tank is very homogeneous, which eliminates any risk of premature refoulement.
- a plurality of knives each coated with a block of flexible material, such as foam rubber, is installed either at the level of the tape feeding means used, for example a pair of parallel brushes facing each other, in the upper part of the tank, ie at the lower end of the deflector. So, if a belt driven by the crusher comes to tighten, normally that at the slowest speed, it compresses the foam block and impales itself on one of the knives that cut it instantly. So no overvoltage cannot affect the path upstream of the tape to the spool feed, and distort the register of this band under the turntable.
- the lower part of the accumulation tank is tapered downwards towards the inlet of the mill, making it East practically always in contact with the used strip.
- an insertion pestle driven by an actuator, i.e. an electric, pneumatic or hydraulic, and oriented towards the grinder inlet in order to reset this one if it turns empty.
- control device triggers the shredder after accumulation of a predetermined length of belts used, as read by a counting roller which may belong to the means of feeding the strip into the upper part of the tank, this mill being operated for a predetermined period corresponding to the emptying of most of the tank.
- control device includes a sensor filling the tank to a predetermined maximum level, the tilting activates the crusher, as well as a tank emptying sensor at a predetermined minimum level whose tilting causes the stop of the grinder.
- a sensor can include, for example, a plurality of photoelectric cells whose reading of a light ray must be interrupted for a minimum period for a majority of them during of a tilting.
- the crusher is driven by a motor electric fitted with an overcurrent measurement device during an overload due to excessive accumulation of bands or the presence of an object hard, this device then causing a momentary drive of the crusher reverse.
- the shredder is usefully connected to the transport container by a pneumatic pipeline.
- the waste being reduced to confetti, they are then completely transportable to another point of the workshop by simple breath of air generated by a fan, where the transport container is better accessible and movable.
- the invention will be better understood when studying a mode of realization taken on a nonlimiting basis and illustrated schematically from the side in the left part of the attached figure, where is also represented in the right part, front view, the platen press of a machine associated printing.
- the press includes a horizontal platen upper 10 fixed in the machine frame and an underlying plate parallel 12 movable vertically.
- this lower plate 12 is supported by a device 14 composed of a pair of parallel knee pads facing each other whose median axes are connected by one or more connecting rods horizontal to a rotary crankshaft installed between these knee pads. So the lower plate 12 presses up each of the sheets 1 brought sequentially according to a horizontal displacement by a bar of pliers not illustrated, and this against clichés fixed on a board secured to the underside of the upper fixed plate 10.
- a metallized strip 3 for deposition, on this sheet 1, of an image in a remarkable color, in particular metallic reflection.
- means of progress and advance intermittent not illustrated sequentially bring this band 3 under the plate, this strip being taken up on the other side by guide rollers upwards towards a tension roller 20 located in the part upper part of the machine usually above the press, for example, close to its front edge.
- This strip 3 is pressed against the roller tensioner 20 by rear pressure rollers 22.
- the speed of rotation of this tension roller 20 is greater than the speed of travel of the bands 3 as imposed by the intermittent unwinding means, so as to induce a necessary and sufficient tension to correctly maintain this band in the parallel plane of the press.
- the bands are oriented at right angle by deflection rollers 26 to a side exit window of the machine frame, where they are guided downwards by a roller 62 before to be driven into ejection by a pair of drive brushes 40.
- Des knives 24 installed either at the tension roller 20 or at the idler rollers 26 make one or more longitudinal cuts transforming used metal strips 3 into strips.
- these strips 7 of used strips 3 are not directly introduced into a transport container 90 but fall first in an accumulation tank 30.
- the drive brushes 40 project the strips 7 to a deflector 34 oblique downward initially orienting these straps in the vertical median plane of the reservoir 30.
- a blower 38 forms an air stream on the oblique upper face of this deflector 34.
- the relatively light strips 7 then hardly touch the deflector 34 which cannot catch and hold them by friction.
- the strips 7 then accumulate in superimposed loops of greater width or less equal to that of the tank.
- the lower part 32 of the tank 30 is oblique downwards as seen schematically in the left part of the figure.
- the lower end of this conical part constitutes a substantially rectangular opening onto a grinder 50, in the occurrence a chopper formed of two parallel cylinders arranged in opposite and carrying on their periphery a network of interpenetrating knives.
- the geometry of this knife network is such that this shredder can shred the strips 7 longitudinally and transversely for the reduce to small waste 9 of the order of a few square centimeters.
- these rollers are driven in opposite directions rotation by an electric motor 52: the left roller in the direction clockwise and the right roller in the opposite direction of such so as to project the waste 9 downwards into an outlet pipe 38.
- This waste 9 can fall directly into a container of transport 90 placed immediately under the tank 30. Alternatively, these waste 9 is sucked into an evacuation duct 39 in which a air flow generated by fans, this duct carrying these waste in another location more suitable for installation and handling of the transport container 90.
- the knife holder cylinders of the crusher 50 must rotate at a fairly fast minimum speed causing them to cut the straps 7 much faster than they accumulate in the tank 30.
- this crusher 50 is used only intermittently, just when necessary, by means of control 60.
- These means of control may be computer and electronic means comprising a control unit, implementing a pre-recorded program in memory and modified by entering additional data using a keyboard in view of momentary results appearing on the screen.
- the control means receive counting pulses emitted during the rotation of a counting roller 62 can be one of the guide rollers preceding the brushes 40. So when the passage of a quantity of straps sufficient to fill most of the tank 30 has been deducted, the control means 60 switch on the electric motor 52 of the crusher 50 during a predetermined period corresponding substantially to the time necessary put by this crusher to destroy this major part of strips 7 present in the tank 30. This delay can be adjusted by the operator by entering a new value using the keyboard.
- two detectors are installed in the tank 30. levels: a maximum level detector 64 and a level detector minimum 64 ', each connected to an input card of the control means 60.
- These detectors can, for example, be a plurality of cells photoelectric receiving a beam of light from a light source located against the opposite wall. When the maximum level is actually reached, then only a majority of cells no longer receive of light beams for at least a predetermined interval of the order of the second.
- the control means 60 then trigger the crusher 50 they stop as soon as the lower detector 64 'switches in turn.
- the conical shape of the lower part 32 of the tank 30 means that the crusher 50 is normally always in contact with one or more strips 7 allowing it, as for spaghetti, to train following.
- a pestle 54 in the form of an electric, pneumatic or hydraulic, the rod of which can come down towards the mill and whose the end of this rod is provided with a pusher member such as a ball or a rectangular plate.
- the speed of movement of the metal strips 3 in the plate directly depends on the size of the patterns to be printed successively. In in other words, we advance the strip by a quantity just necessary for cover the length of the pattern, thus optimizing the consumption of this strip. If this length is small, the scrolling speed, therefore the speed accumulation in the tank of the corresponding band, is also low.
- one of the bands may end up completely shredded very quickly and suddenly tighten like illustrated by the 7 'strap.
- a device of hidden knives comprises a plurality of knives 42, 42 'distributed at intervals regular along a cross.
- the knife blades are coated in a block of elastic flexible material 44, 44 ′ protruding beyond the point at rest knives.
- This material can be a foam of rubber or elastic plastic material.
- a strap brought by the training brushes 40 under zero voltage slides without any other effect against flexible blocks 44, 44 '.
- a 7 'strap stiffens it compresses either the upper block 44 or the lower block 44 'which, by retracting, reveals the tip of one of the knives 42, 42 'which tears and instantly cut that strap. No overvoltage can be pass upstream in particular at the tension roller 20.
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- Mechanical Engineering (AREA)
- Engineering & Computer Science (AREA)
- Crushing And Pulverization Processes (AREA)
- Making Paper Articles (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
- Treatment Of Fiber Materials (AREA)
- Processing Of Solid Wastes (AREA)
- Impression-Transfer Materials And Handling Thereof (AREA)
- Advancing Webs (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
- Physical Vapour Deposition (AREA)
- Laminated Bodies (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Press Drives And Press Lines (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Details Of Cutting Devices (AREA)
- Paper (AREA)
- Printing Plates And Materials Therefor (AREA)
Abstract
Description
L'invention est relative à un dispositif de traitement de bandes métallisées usagées dans une machine de transfert d'images métallisées sur des éléments en plaque, tels que des feuilles de carton, de papier, de matière plastique, etc. L'invention concerne plus particulièrement un dispositif utilisé dans une presse à platines comprenant un sommier supérieur fixe et un sommier inférieur mobile, sommiers entre lesquels la feuille de carton est amenée, pour impression sur celle-ci, selon des motifs donnés, d'une pellicule métallisée issue d'une bande conduite entre cette feuille et l'un des sommiers.The invention relates to a tape processing device used metallics in a metallized image transfer machine on plate elements, such as sheets of cardboard, paper, material plastic, etc. The invention relates more particularly to a device used in a platen press comprising a fixed upper base and a movable lower bed base, bed bases between which the cardboard sheet is brought, for printing thereon, according to given reasons, a film metallized from a conductive strip between this sheet and one of the box springs.
Une telle presse à platines comprend usuellement d'abord une station d'introduction dans laquelle est installée une pile de feuilles, chaque feuille étant successivement enlevée du dessus de la pile pour être envoyée sur une table de marge. Sur cette table, chaque feuille est mise en position contre des taquets avant et latéraux avant d'être saisie en son bord frontal par une série de pinces montées le long d'une barre transversale, dont chaque extrémité est attachée à un train de chaínes latérales emmenant la barre, donc la feuille, dans les stations suivantes de traitement. La ou les stations de traitement peuvent être une station de transfert de la pellicule métallisée, éventuellement combinée avec des outils de découpage, suivie d'une station d'éjection des déchets. Ces stations de traitement sont finalement suivies d'une station de réception dans laquelle chaque feuille relâchée par les pinces tombe équerrée sur le dessus d'une pile s'accumulant sur une palette de sortie.Such a platen press usually comprises first of all a insertion station in which a stack of sheets is installed, each sheet being successively removed from the top of the pile to be sent on a margin table. On this table, each sheet is placed in position against front and side cleats before being grabbed at its front edge by a series of clamps mounted along a crossbar, of which each end is attached to a train of side chains carrying the bar, therefore the sheet, in the following treatment stations. The processing stations can be a film transfer station metallized, possibly combined with cutting tools, followed a waste ejection station. These treatment stations are finally followed by a receiving station in which each sheet released by the clamps falls squarely on top of an accumulating pile on an output pallet.
Un dispositif indépendant de transport de bandes métallisées parallèles comprend successivement un support de bobines d'alimentation de bandes, des moyens de déroulement et d'avance intermittents des bandes, des moyens de guidage pour guider ces bandes parallèlement au sens de défilement des feuilles entre les platines, puis guider en dégagement autour de l'une des platines de la presse, un mécanisme tendeur pour mettre sous tension ces bandes au moins le long de leur trajectoire entre les platines, et un dispositif d'évacuation des bandes usagées hors de la machine, usuellement au travers d'une fenêtre latérale.An independent device for transporting metallic strips parallel comprises successively a support of supply coils of bands, means of intermittent unwinding and advancing of the bands, guide means for guiding these strips parallel to the direction of scrolling of the sheets between the plates, then guide in clearance around of one of the press plates, a tensioning mechanism to put under tension these bands at least along their trajectory between the plates, and a device for discharging used tapes from the machine, usually through a side window.
Les bandes métallisées ayant une vitesse de défilement intermittente identique passent par les mêmes moyens d'avance et de déroulement, alors que les bandes ayant une vitesse différente passent par des second, voire troisième moyens de déroulement et d'avance dédoublés, le mécanisme tendeur étant réglé dans ce cas en fonction de la plus grande vitesse.Metallic strips having a running speed intermittent identical go through the same means of advance and unfolding, while the bands having a different speed pass through second, even third means of duplication and advance, the tensioning mechanism being adjusted in this case according to the largest speed.
Le mécanisme tendeur est usuellement constitué d'un rouleau de tension entraíné soit continuellement à une vitesse sensiblement supérieure à la vitesse d'avance de la bande métallisée, soit d'un rouleau de tension entraíné séquentiellement à une vitesse sensiblement supérieure à la vitesse d'avance de la bande métallisée. Dans les deux cas, la bande est pincée contre ce rouleau par au moins un galet presseur dont la pression est réglable. Quittant ce rouleau, la bande effectue un angle droit autour d'une barre de renvoi en direction d'une fenêtre latérale du cadre de la machine où elle est éjectée par deux brosses tournantes pour chuter dans un bac ou un sac. De préférence, des couteaux situés proches du rouleau de tension coupent la bande longitudinalement en plusieurs lanières.The tensioning mechanism usually consists of a roller driven tension is continuously at a speed substantially higher than the speed of advance of the metallized strip, ie of a tension roller driven sequentially at a speed significantly higher than the speed in advance of the metallic strip. In both cases, the strip is pinched against this roller by at least one pressure roller whose pressure is adjustable. Leaving this roll, the strip makes a right angle around a deflection bar towards a side window of the machine frame where it is ejected by two rotating brushes to fall into a bin or bag. Preferably knives located near the tension roller cut the strip longitudinally into several strips.
A l'usage, il s'avère toutefois que ces déchets de bandes étant seulement découpés longitudinalement, ils remplissent trop rapidement le bac ou sac de réception qui doit alors être remplacé par l'opérateur très fréquemment. De plus, ces sacs forment des ballots volumineux encombrants à transporter.In use, however, it turns out that this tape waste being only cut lengthwise, they fill the tank too quickly or reception bag which must then be replaced by the operator very frequently. In addition, these bags form bulky bulky bundles to carry.
Le but de la présente invention est un dispositif de traitement de déchets, constitués de bandes métallisées usagées, coupées longitudinalement et arrivant éventuellement avec des vitesses différentes, ce dispositif permettant de réduire autant que possible le volume de ces déchets pour les évacuer en des sacs plus compacts, voire même par une canalisation. La conception de ce dispositif doit toutefois rester simple pour une meilleure fiabilité de fonctionnement dans le temps et un coût de réalisation raisonnable.The object of the present invention is a device for processing waste, consisting of used metallized strips, cut longitudinally and arriving possibly with different speeds, this device making it possible to reduce the volume of this waste as much as possible to dispose of it more compact bags, or even by a pipe. The design of this device must however remain simple for better reliability of operation over time and a reasonable cost of production.
Ces buts sont atteints grâce à un dispositif de traitement du fait qu'il comprend un réservoir d'accumulation recevant en sa partie supérieure les bandes usagées apportées par des moyens d'amenée, et complété en sa partie inférieure d'un broyeur mis automatiquement en marche par intermittence sous le contrôle d'un dispositif de commande, la sortie du broyeur donnant dans un récipient de transport de déchets. De préférence, le broyeur est constitué de deux cylindres parallèles situés en vis-à-vis et portant des couteaux s'interpénétrant pour couper les déchets transversalement et longitudinalement.These goals are achieved by a device for processing the fact that it includes an accumulation tank receiving in its upper part used strips brought in by means of feed, and completed in its lower part of a grinder automatically started by intermittently under the control of a control device, the output of the crusher giving into a waste transport container. Preferably, the mill consists of two parallel cylinders located opposite and carrying interlocking knives to cut waste transversely and longitudinally.
Ainsi, les bandes usagées sont découpées en des déchets de petites dimensions, comme des confettis, qui remplissent alors le récipient de manière beaucoup plus dense. L'intervalle entre deux échanges de récipients devient alors plus long, ce qui libère d'autant l'opérateur.Thus, the used strips are cut into waste small dimensions, like confetti, which then fill the container with much more dense. The interval between two container exchanges then becomes longer, which frees up the operator accordingly.
Selon un mode de réalisation préféré, le réservoir comprend, en sa partie supérieure, un déflecteur oblique vers le bas déviant la chute initiale des bandes usagées vers le milieu du réservoir. Si désiré, une soufflerie forme un film d'air sur ce déflecteur pour annihiler toute friction et éviter ainsi tout amoncellement de bande à ce niveau. Ainsi, l'accumulation des bandes usagées dans le réservoir s'effectue de manière très homogène, ce qui élimine tout risque de refoulement prématuré.According to a preferred embodiment, the reservoir comprises, in its upper part, a downward oblique deflector deflecting the initial fall used bands towards the middle of the tank. If desired, a blower forms an air film on this deflector to eliminate all friction and thus avoid any heap of tape at this level. So the accumulation of bands used in the tank is very homogeneous, which eliminates any risk of premature refoulement.
Selon un mode de réalisation préféré, une pluralité de couteaux, chacun enrobé d'un bloc d'un matériau souple, tel qu'une mousse de caoutchouc, est installée soit au niveau des moyens d'amenée des bandes usagées, par exemple une paire de brosses parallèles en vis-à-vis, dans la partie supérieure du réservoir, soit à l'extrémité inférieure du déflecteur. Alors, si une bande entraínée par le broyeur vient à se tendre, normalement celle dont la vitesse est la plus faible, elle comprime le bloc de mousse et s'empale sur l'un des couteaux qui la coupe instantanément. Ainsi, aucune surtension ne peut se répercuter dans le trajet en amont de la bande jusqu'à la bobine d'alimentation, et fausser le registre de cette bande sous la platine.According to a preferred embodiment, a plurality of knives, each coated with a block of flexible material, such as foam rubber, is installed either at the level of the tape feeding means used, for example a pair of parallel brushes facing each other, in the upper part of the tank, ie at the lower end of the deflector. So, if a belt driven by the crusher comes to tighten, normally that at the slowest speed, it compresses the foam block and impales itself on one of the knives that cut it instantly. So no overvoltage cannot affect the path upstream of the tape to the spool feed, and distort the register of this band under the turntable.
De préférence, la partie inférieure du réservoir d'accumulation est conique vers le bas orientée vers l'entrée du broyeur, faisant que celui-ci est pratiquement toujours en contact avec la bande usagée. Si désiré, on installe dans la partie supérieure de la partie conique du réservoir un pilon d'insertion animé par un actuateur, c'est-à-dire un vérin électrique, pneumatique ou hydraulique, et orienté en direction de l'entrée du broyeur afin de réinitialiser celui-ci s'il vient à tourner à vide.Preferably, the lower part of the accumulation tank is tapered downwards towards the inlet of the mill, making it East practically always in contact with the used strip. If desired, install in the upper part of the conical part of the tank an insertion pestle driven by an actuator, i.e. an electric, pneumatic or hydraulic, and oriented towards the grinder inlet in order to reset this one if it turns empty.
Avantageusement, le dispositif de commande déclenche le broyeur après accumulation d'une longueur prédéterminée de bandes usagées, telle que lue par un rouleau de comptage pouvant appartenir aux moyens d'amenée de la bande dans la partie supérieure du réservoir, ce broyeur étant mis en oeuvre pendant une durée prédéterminée correspondant au vidage de la majeure partie du réservoir. Ce procédé est particulièrement simple et efficace.Advantageously, the control device triggers the shredder after accumulation of a predetermined length of belts used, as read by a counting roller which may belong to the means of feeding the strip into the upper part of the tank, this mill being operated for a predetermined period corresponding to the emptying of most of the tank. This process is particularly simple and effective.
En alternative, le dispositif de commande comprend un capteur du remplissage du réservoir à un niveau maximum prédéterminé dont le basculement enclenche le broyeur, ainsi qu'un capteur du vidage du réservoir à un niveau minimum prédéterminé dont le basculement provoque l'arrêt du broyeur. Un tel capteur peut comprendre, par exemple, une pluralité de cellules photoélectriques dont la lecture d'un rayon lumineux doit être interrompue pendant un délai minimum pour une majorité d'entre elles lors d'un basculement.Alternatively, the control device includes a sensor filling the tank to a predetermined maximum level, the tilting activates the crusher, as well as a tank emptying sensor at a predetermined minimum level whose tilting causes the stop of the grinder. Such a sensor can include, for example, a plurality of photoelectric cells whose reading of a light ray must be interrupted for a minimum period for a majority of them during of a tilting.
Avantageusement, le broyeur est entraíné par un moteur électrique muni d'un dispositif de mesure de sur-intensité lors d'une surcharge due à une trop grande accumulation de bandes ou à la présence d'un objet dur, ce dispositif provoquant alors un entraínement momentané du broyeur en sens inverse.Advantageously, the crusher is driven by a motor electric fitted with an overcurrent measurement device during an overload due to excessive accumulation of bands or the presence of an object hard, this device then causing a momentary drive of the crusher reverse.
Utilement, le broyeur est relié au récipient de transport par une canalisation pneumatique. Les déchets étant réduits à des confettis, ils sont alors tout à fait transportables en un autre point de l'atelier par simple souffle d'air engendré par un ventilateur, endroit où le récipient de transport est mieux accessible et déplaçable. On prévoit alors un avertisseur sonore ou lumineux du remplissage complet du récipient.The shredder is usefully connected to the transport container by a pneumatic pipeline. The waste being reduced to confetti, they are then completely transportable to another point of the workshop by simple breath of air generated by a fan, where the transport container is better accessible and movable. An audible warning device or bright when the container is full.
L'invention sera mieux comprise à l'étude d'un mode de réalisation pris à titre nullement limitatif et illustré schématiquement de côté dans la partie gauche de la figure annexée, où est également représentée dans la partie droite, vue de face, la presse à platine d'une machine d'impression associée.The invention will be better understood when studying a mode of realization taken on a nonlimiting basis and illustrated schematically from the side in the left part of the attached figure, where is also represented in the right part, front view, the platen press of a machine associated printing.
Comme représenté, la presse comprend une platine horizontale
supérieure 10 fixée dans le bâti de la machine et une platine sous-jacente
parallèle 12 mobile verticalement. Pour ce, cette platine inférieure 12 est
supportée par un dispositif 14 composé d'une paire de genouillères parallèles
en vis-à-vis dont les axes médians sont reliés par une ou plusieurs bielles
horizontales à un vilebrequin rotatif installé entre ces genouillères. Ainsi, la
platine inférieure 12 vient plaquer vers le haut chacune des feuilles 1
apportées séquentiellement selon un déplacement horizontal par une barre
de pinces non illustrée, et ce contre des clichés fixés sur une planche
solidaire de la face inférieure de la platine fixe 10 supérieure.As shown, the press includes a horizontal platen
upper 10 fixed in the machine frame and an underlying plate
parallel 12 movable vertically. For this, this
Plus particulièrement, dans le cadre de cette invention, il est
prévu d'intercaler entre la feuille 1 et les clichés d'impression de la platine
supérieure 10 une bande 3 métallisée pour dépôt,
sur cette feuille 1, d'une image en une couleur remarquable, notamment à
reflet métallique. Pour ce, des moyens de déroulement et d'avance
intermittents non illustrés amènent séquentiellement cette bande 3 sous la
platine, cette bande étant reprise de l'autre côté par des rouleaux de guidage
vers le haut en direction d'un rouleau tendeur 20 situé dans la partie
supérieure de la machine usuellement au-dessus de la presse, par exemple,
proche de son bord avant. Cette bande 3 est pressée contre le rouleau
tendeur 20 par des galets presseurs arrière 22. La vitesse de rotation de ce
rouleau tendeur 20 est supérieure à la vitesse de défilement des bandes 3
telle qu'imposée par les moyens de déroulement intermittent, de telle sorte à
induire une tension nécessaire et suffisante pour maintenir correctement cette
bande dans le plan parallèle de la presse.More particularly, in the context of this invention, it is
planned to insert between
A la sortie de ce rouleau tendeur 20, les bandes sont orientées à
angle droit par des rouleaux de renvoi 26 vers une fenêtre de sortie latérale
du bâti de la machine, où ils sont guidés vers le bas par un rouleau 62 avant
d'être entraínés en éjection par une paire de brosses d'entraínement 40. Des
couteaux 24 installés soit au niveau du rouleau tendeur 20, soit au niveau des
rouleaux de renvoi 26, effectuent une ou plusieurs coupes longitudinales
transformant les bandes métalliques usagées 3 en lanières.At the exit of this tension roller 20, the bands are oriented at
right angle by
Selon l'invention, ces lanières 7 de bandes usagées 3 ne sont pas
directement introduites dans un récipient de transport 90 mais tombent
d'abord dans un réservoir d'accumulation 30.According to the invention, these
Comme illustré, les brosses d'entraínement 40 projettent les
lanières 7 vers un déflecteur 34 oblique vers le bas orientant initialement ces
lanières dans le plan médian vertical du réservoir 30. Pour éviter toute
accumulation inopportune de lanières 7 dès l'entrée du réservoir 30, une
soufflerie 38 forme un filet d'air sur la face supérieure oblique de ce déflecteur
34. Les lanières 7 relativement légères ne touchent alors guère le déflecteur
34 qui ne peut les accrocher et les maintenir par friction. Comme illustré, les
lanières 7 s'accumulent alors selon des boucles superposées de largeur plus
ou moins égale à celle du réservoir.As illustrated, the
Plus particulièrement, selon l'invention, la partie inférieure 32 du
réservoir 30 est oblique orientée vers le bas telle que vue
schématiquement dans la partie gauche de la figure.
L'extrémité inférieure de cette partie conique constitue une
ouverture sensiblement rectangulaire donnant sur un broyeur 50, en
l'occurrence un hachoir formé de deux cylindres parallèles disposés en
vis-à-vis et portant sur leur périphérie un réseau de couteaux s'interpénétrant.
La géométrie de ce réseau de couteaux est telle que ce broyeur peut
déchiqueter les lanières 7 longitudinalement et transversalement pour les
réduire en des déchets 9 de petites dimensions de l'ordre de quelques
centimètres carrés. A cette fin, ces rouleaux sont entraínés en sens inverse
de rotation par un moteur électrique 52 : le rouleau de gauche dans le sens
des aiguilles d'une montre et le rouleau de droite dans le sens inverse de telle
sorte à projeter les déchets 9 vers le bas dans une canalisation de sortie 38.More particularly, according to the invention, the
Ces déchets 9 peuvent tomber directement dans un récipient de
transport 90 placé immédiatement sous le réservoir 30. En alternative, ces
déchets 9 sont aspirés dans un conduit d'évacuation 39 dans lequel règne un
courant d'air engendré par des ventilateurs, ce conduit emmenant ces
déchets en un autre endroit plus approprié pour l'installation et la manutention
du récipient de transport 90.This
Pour être efficaces, les cylindres porte-couteaux du broyeur 50
doivent tourner à une vitesse minimum assez rapide faisant qu'ils découpent
les lanières 7 bien plus rapidement qu'elles ne s'accumulent dans le réservoir
30. A cet effet, ce broyeur 50 n'est mis en oeuvre que par intermittence, juste
lorsque nécessaire, par des moyens de contrôle 60. Ces moyens de contrôle
peuvent être des moyens informatiques et électroniques comprenant une
unité de contrôle, mettant en oeuvre un programme pré-enregistré en
mémoire et modifié par entrée de données supplémentaires au moyen d'un
clavier au vu de résultats momentanés apparaissant à l'écran.To be effective, the knife holder cylinders of the
Selon un premier procédé, les moyens de contrôle reçoivent des
impulsions de comptage émises lors de la rotation d'un rouleau de comptage
62 pouvant être l'un des rouleaux de guidage précédant les brosses
d'entraínement 40. Ainsi, lorsque le passage d'une quantité de lanières
suffisante pour remplir la majeure partie du réservoir 30 a été décompté, les
moyens de contrôle 60 enclenchent le moteur électrique 52 du broyeur 50
pendant un délai prédéterminé correspondant sensiblement au temps
nécessaire mis par ce broyeur pour détruire cette majeure partie de lanières 7
présente dans le réservoir 30. Ce délai peut être ajusté par l'opérateur en
entrant une nouvelle valeur au clavier.According to a first method, the control means receive
counting pulses emitted during the rotation of a counting
En alternative, on installe dans le réservoir 30 deux détecteurs de
niveaux : un détecteur de niveau maximum 64 et un détecteur de niveau
minimum 64', chacun relié à une carte d'entrée des moyens de contrôle 60.
Ces détecteurs peuvent, par exemple, être une pluralité de cellules
photoélectriques recevant un faisceau de lumière d'une source lumineuse
située contre la paroi en vis-à-vis. Lorsque le niveau maximum est
effectivement atteint, alors seulement une majorité de cellules ne reçoit plus
de faisceaux lumineux pendant un intervalle prédéterminé au moins de l'ordre
de la seconde. Les moyens de contrôle 60 déclenchent alors le broyeur 50
qu'ils arrêtent dès que le détecteur inférieur 64' bascule à son tour.As an alternative, two detectors are installed in the
La forme conique de la partie inférieure 32 du réservoir 30 fait que
le broyeur 50 est normalement toujours en contact avec une ou plusieurs
lanières 7 lui permettant, comme pour des spaghettis, d'entraíner les
suivantes. Si désiré, on peut installer dans cette partie inférieure conique 32
de réservoir un pilon 54 sous la forme d'un vérin électrique, pneumatique ou
hydraulique dont la tige peut sortir vers le bas en direction du broyeur et dont
l'extrémité de cette tige est munie d'un organe pousseur tel qu'une boule ou
une plaque rectangulaire. Ainsi, au cas improbable où le broyeur 50 vienne à
tourner à vide, on peut mettre en oeuvre ce pilon 54 pour pousser les lanières
7 dans le broyeur et le réinitialiser.The conical shape of the
La vitesse de défilement des bandes métalliques 3 dans la platine
dépend directement de l'ampleur des motifs à imprimer successivement. En
d'autres termes, on avance la bande d'une quantité juste nécessaire pour
couvrir la longueur du motif, optimisant ainsi la consommation de cette bande.
Si cette longueur est faible, la vitesse de défilement, donc la vitesse
d'accumulation dans le réservoir de la bande correspondante, est également
faible. Lors d'une opération du broyeur 50, l'une des bandes peut se retrouver
complètement déchiquetée très rapidement et se tendre brutalement comme
illustré par la lanière 7'.The speed of movement of the metal strips 3 in the plate
directly depends on the size of the patterns to be printed successively. In
in other words, we advance the strip by a quantity just necessary for
cover the length of the pattern, thus optimizing the consumption of this strip.
If this length is small, the scrolling speed, therefore the speed
accumulation in the tank of the corresponding band, is also
low. During an operation of the
Pour ce, on prévoit au départ ou à l'arrivée de la trajectoire de
déviation imposée par le déflecteur 34 un dispositif de couteaux cachés. Ce
dispositif comprend une pluralité de couteaux 42, 42' répartis à intervalles
réguliers le long d'une traverse. Les lames de couteaux sont enrobées dans
un bloc de matériau souple élastique 44, 44' dépassant au repos la pointe
des couteaux. Ce matériau peut être une mousse de caoutchouc ou de
matière plastique élastique. De cette manière, une lanière amenée par les
brosses d'entraínement 40 sous une tension nulle glisse sans autre effet contre les
blocs souples 44, 44'. Par contre, dès qu'une lanière 7' se raidit, elle
comprime soit le bloc supérieur 44 soit le bloc inférieur 44' qui, en se
rétractant, laisse apparaítre la pointe de l'un des couteaux 42, 42' qui déchire
et coupe instantanément cette lanière. Aucune surtension ne peut ainsi se
répercuter en amont notamment au niveau du rouleau tendeur 20.For this, we plan to start or finish the trajectory of
deflection imposed by the deflector 34 a device of hidden knives. This
device comprises a plurality of
De nombreuses améliorations peuvent être apportées à ce dispositif de traitement de bandes usagées dans le cadre des revendications.Many improvements can be made to this device for processing used tapes within the scope of the claims.
Claims (9)
- Device for processing used foil strips in a machine for printing plate-like workpieces, said device comprising an accumulating bin (30) the upper part of which receives the used foil strips (5) brought by supply means (26, 62, 40), and the lower part of which is provided with a grinder (50) automatically started intermittently under the control of a control means (60), the output (38) of the grinder (50) leading into a transport receptacle (90) for waste (9).
- Device according to claim 1, characterized by the fact that the bin (30) comprises in its upper part a deflector (34) oriented obliquely downward to divert the initial fall of the used foil strips (5, 7) towards the middle of the bin.
- Device according to claim 2, characterized by the fact that a blower (38) forms a film of air on the deflector (34).
- Device according to claim 2, characterized by the fact that a plurality of knives (42, 42'), each sheathed in a block of flexible material (44, 44'), is installed either at the supply means (40) of the used foil strips (5) in the upper part of the bin (30) or at the lower end of the defector (34).
- Device according to one of the preceding claims, characterized by the fact that the lower part (32) of the accumulating bin (30) is downwardly conical, oriented towards the input to the grinder (50).
- Device according to claim 5, characterized by the fact that an inserting ram (54) driven by an actuator and oriented in the direction of the input to the grinder (50) is installed in the upper part of the conical part (32) of the bin (30).
- Device according to one of the preceding claims, characterized by the fact that the control means (60) activates the grinder (50) after the accumulation of a predetermined length of used foil strips (7) as detected by a counting roller (62) belonging to the foil strip supply means (26, 62, 40) in the upper part of the bin (30), said grinder (50) being operated for a predetermined time period corresponding to the emptying of the greater part of the bin.
- Device according to claim 7, characterized by the fact that the grinder (50) is driven by an electric motor (52) provided with a device for measuring the overcurrent during an overload, said device then causing the grinder to be momentarily driven in the reverse direction.
- Device according to claim 1, characterized by the fact that the grinder (50) is connected to the transport receptacle (90) for the waste (9) by a pneumatic duct (39).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1225/95 | 1995-04-28 | ||
CH01225/95A CH690424A5 (en) | 1995-04-28 | 1995-04-28 | Processing device used in a metallized strips of metallized image transfer machine of the plate elements. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0739721A1 EP0739721A1 (en) | 1996-10-30 |
EP0739721B1 true EP0739721B1 (en) | 1998-08-12 |
Family
ID=4205420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96106321A Expired - Lifetime EP0739721B1 (en) | 1995-04-28 | 1996-04-23 | Device for treating metallized, used webs in a machine for transferring metallized images on flat elements |
Country Status (14)
Country | Link |
---|---|
US (1) | US5791567A (en) |
EP (1) | EP0739721B1 (en) |
JP (1) | JP2749555B2 (en) |
KR (1) | KR100220254B1 (en) |
CN (1) | CN1102457C (en) |
AT (1) | ATE169559T1 (en) |
AU (1) | AU711607B2 (en) |
BR (1) | BR9602095A (en) |
CA (1) | CA2174823C (en) |
CH (1) | CH690424A5 (en) |
DE (1) | DE69600508T2 (en) |
DK (1) | DK0739721T3 (en) |
ES (1) | ES2120262T3 (en) |
TW (1) | TW326025B (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0127719D0 (en) * | 2001-11-19 | 2002-01-09 | Chapman Pauline L | Waste glass storage |
TWI283651B (en) | 2004-04-23 | 2007-07-11 | Bobst Sa | Device for transferring a foil matter from outside to inside of a machine |
CN100391801C (en) * | 2004-12-06 | 2008-06-04 | 云南昆船设计研究院 | Process and apparatus for automatically opening cardboard box for cigarette |
DE102005003787A1 (en) * | 2005-01-19 | 2006-07-27 | Steuer Gmbh Printing Technology | Method and device for disposing of flexible material |
US20130037639A1 (en) * | 2011-08-08 | 2013-02-14 | Aurora Office Equipment Co., Ltd. Shanghai | Waste bin leveling system for a paper shredder |
CN108501516B (en) * | 2018-03-30 | 2019-07-30 | 重庆华康印务有限公司 | Invoice printing machine |
CN112549762B (en) * | 2020-12-23 | 2022-05-17 | 陕西金叶印务有限公司 | Automatic gilt paper tinsel device of walking of roll adjustment |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2341867A1 (en) * | 1973-08-18 | 1975-04-17 | Kloeckner Humboldt Deutz Ag | PROCESS FOR FINE CRUSHING OF SOLIDS WITH A ROLLER MILL AND CRUSHING DEVICE FOR CARRYING OUT THE PROCESS |
US4172515A (en) * | 1976-01-30 | 1979-10-30 | Hauni-Werke Korber & Co. K.G. | Method and apparatus for supplying tobacco to tobacco cutting machines |
US4200239A (en) * | 1978-07-14 | 1980-04-29 | Wright Line Inc. | Machine that quadrates documents |
DE3112667C2 (en) * | 1981-03-31 | 1987-04-30 | Feinwerktechnik Schleicher & Co, 7778 Markdorf | Document shredder |
US4678126A (en) * | 1985-11-04 | 1987-07-07 | Prentice Charles E | Shredder |
SE455768B (en) * | 1986-12-16 | 1988-08-08 | Sandarne Ind Ab | Crushing unit |
US5114490A (en) * | 1991-01-04 | 1992-05-19 | Tilby Sydney E | Apparatus for control of sugarcane half-billets |
DE4103950C1 (en) * | 1991-02-09 | 1992-04-23 | Geha-Werke Gmbh, 3000 Hannover, De | |
DE4107837C2 (en) * | 1991-03-12 | 1997-03-13 | Schleicher & Co Int | Document shredder |
GB2254586B (en) * | 1991-04-11 | 1994-09-21 | Profoil Systems Limited | Foil blocking apparatus |
DE4408470C2 (en) * | 1993-03-22 | 1995-07-20 | Hermann Schwelling | Document shredder with cabinet-like base and hood-like attachment |
-
1995
- 1995-04-28 CH CH01225/95A patent/CH690424A5/en not_active IP Right Cessation
-
1996
- 1996-04-10 TW TW085104202A patent/TW326025B/en not_active IP Right Cessation
- 1996-04-22 KR KR1019960012290A patent/KR100220254B1/en not_active IP Right Cessation
- 1996-04-23 CA CA002174823A patent/CA2174823C/en not_active Expired - Fee Related
- 1996-04-23 DE DE69600508T patent/DE69600508T2/en not_active Expired - Lifetime
- 1996-04-23 EP EP96106321A patent/EP0739721B1/en not_active Expired - Lifetime
- 1996-04-23 ES ES96106321T patent/ES2120262T3/en not_active Expired - Lifetime
- 1996-04-23 AT AT96106321T patent/ATE169559T1/en not_active IP Right Cessation
- 1996-04-23 DK DK96106321T patent/DK0739721T3/en active
- 1996-04-26 JP JP8107177A patent/JP2749555B2/en not_active Expired - Fee Related
- 1996-04-26 AU AU51907/96A patent/AU711607B2/en not_active Ceased
- 1996-04-26 US US08/638,176 patent/US5791567A/en not_active Expired - Lifetime
- 1996-04-26 BR BR9602095A patent/BR9602095A/en not_active IP Right Cessation
- 1996-04-29 CN CN96104925A patent/CN1102457C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR100220254B1 (en) | 1999-09-15 |
EP0739721A1 (en) | 1996-10-30 |
JPH08300617A (en) | 1996-11-19 |
ATE169559T1 (en) | 1998-08-15 |
DE69600508T2 (en) | 1999-01-28 |
DE69600508D1 (en) | 1998-09-17 |
AU711607B2 (en) | 1999-10-14 |
AU5190796A (en) | 1996-11-07 |
CA2174823C (en) | 1999-02-23 |
BR9602095A (en) | 1998-10-06 |
DK0739721T3 (en) | 1999-05-17 |
JP2749555B2 (en) | 1998-05-13 |
TW326025B (en) | 1998-02-01 |
KR960037265A (en) | 1996-11-19 |
CA2174823A1 (en) | 1996-10-29 |
CN1137421A (en) | 1996-12-11 |
CH690424A5 (en) | 2000-09-15 |
ES2120262T3 (en) | 1998-10-16 |
CN1102457C (en) | 2003-03-05 |
US5791567A (en) | 1998-08-11 |
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