EP0624440B1 - Machine for preparing webs in order to destroy them - Google Patents
Machine for preparing webs in order to destroy them Download PDFInfo
- Publication number
- EP0624440B1 EP0624440B1 EP19940401081 EP94401081A EP0624440B1 EP 0624440 B1 EP0624440 B1 EP 0624440B1 EP 19940401081 EP19940401081 EP 19940401081 EP 94401081 A EP94401081 A EP 94401081A EP 0624440 B1 EP0624440 B1 EP 0624440B1
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- EP
- European Patent Office
- Prior art keywords
- machine
- strips
- blade
- pieces
- 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.)
- Expired - Lifetime
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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
- B65H20/02—Advancing webs by friction roller
- B65H20/04—Advancing webs by friction roller to effect step-by-step advancement of web
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/18—Means for removing cut-out material or waste
Definitions
- the present invention relates to a machine for conditioning continuous strips of material for their elimination.
- the invention finds a particularly advantageous application in the field of the food industry, in particular in association with thermoformers.
- thermoformers which use films of suitable plastic material. These are driven along the machines by a conveyor which clamps the films on the sides so as to maintain them during their transport. After thermoforming and packaging of the food, the plastic material films are cut in order to release the products thus conditioned. During this cutting operation, the edges of the films engaged in the conveying apparatus are lost in the form of strips, or selvedges, of approximately 10 mm in width, which must be discarded.
- a first method consists of cutting them in advance from the thermoforming machine, ie 300 to 400 mm, and recovering the selvedges thus cut in containers.
- the volume occupied by the selvedges is important, the container filling rate not exceeding 20%.
- no centralization of waste being possible, it is therefore necessary to handle the containers several times a day.
- the selvedges leaving the thermoforming machines are wound on large coils whose diameter can reach 800 mm.
- these coils have a limited autonomy for a duration of the order of 6 hours, and they require operations of manipulation and disassembly of a flange to empty the full coils which require a certain period of time.
- the volume occupied by selvedges in containers remains significant.
- US Pat. No. 2,251,312 describes, for example, a regulated cutting mechanism for the edges of metal strips with the characteristics of the preamble of claim 1.
- the technical problem to be solved by the object of the present invention is to provide a machine for packaging continuous strips of material with a view to their elimination which would, associated with a thermoforming machine for example, reduce the volume of the strips, or selvedges, in the recovery containers by increasing the filling rate, and limit the handling operations costly in labor.
- the pieces of strip thus cut can be a few centimeters in length and thus occupy a relatively small volume in the containers. In this way it is possible to reach filling coefficients of 90%.
- each machine being provided with a recovery outlet tube
- said installation comprises a collecting tube for the outlet tubes and means for forced circulation of the pieces of strips calibrated at the advance of the machine from the tubes of outlet and to a container into which the collecting tube opens.
- the means of forced circulation are, as desired, means of blowing or suction.
- Figure 1a is a front view of a machine according to the invention.
- Figure 1b is a top view of the machine of Figure 1a.
- Figure 2a is a front view of the cutting means of the machine of Figure 1a.
- Figure 2b is a side view of the cutting means of Figure 2a.
- FIG. 1a shows a front view of a machine for conditioning continuous strips of material, such as strip 10, for their elimination.
- the strip 10 can be a selvedge from a thermoformer.
- the machine of FIG. 1 a comprises means 100 for advancing by step and for cutting the strip 10 into pieces calibrated at the advance step of the machine, followed by means 200, 201 for recovering said pieces of strip of material.
- the means 100 for advancing in steps and for cutting comprise a motor member 110, here a pneumatic cylinder, which applies an alternative stroke to a drive rod 111, stroke represented by the double arrow F1.
- a toothed wheel 130 with free wheel 131 is driven in rotation by the rod 120 with rack.
- a roller 140 for advancing the strip 10 of material is integral with the free wheel 131 of the toothed wheel 130 so as to cause the advancement of the strip during a first stage of the alternating stroke F1 of the drive rod 111 .
- the advance of the strip 10 occurs when the drive rod, and therefore the rack rod 120, moves upwards.
- the reduction ratio between the diameter of the roller 140 in advance and that of the toothed wheel 130 makes it possible to adjust the length of cut strip, that is to say the pitch of advance of the machine, as a function of the stroke of the cylinder 110.
- a counter roller 150 is subjected to a restoring force F2 in the direction of the roller in advance.
- the F2 force of recall is produced, for example, by a torsion spring 151.
- FIGS. 1a to 2b show cutting means proper comprising, on the one hand, a knife-carrying tool 160, carrying a knife 161 in a bevel secured to the rod 120 with rack and the smooth rod 121, and, on the other hand, a fixed counter knife 170, the strip 10 to be cut circulating between the knife holder tool and the fixed counter knife.
- the knife-holder tool 160 is therefore animated with respect to the counter-knife 170 with the same reciprocating movement as the rack rod 120 so that, firstly, the knife-holder tool emerges from the strip 10 while the latter advances by one step, and, in a second step of the alternative stroke of the drive rod 111, the knife-carrying tool 160 comes to cut the strip, which then rests on the counter-knife 170, in pieces calibrated in advance of the machine, while the roller 140 in advance is fixed, and therefore the band 10 immobile, due to the free wheel 131.
- the pieces of strip of material thus cut are recovered, at the outlet of the machine, by an outlet tube 200 in the direction of a container 201, not shown, into which opens said outlet tube.
- the knife-holder tool 160 is provided with a presser foot 162 mounted on a spring 163, capable of holding the strip 10 of material pressed against the counter-knife 170 during the cutting of the strip and up to 'when the knife holder tool 160 is completely disengaged. This prevents the strip 10 from advancing while the knife 161 is not yet completely disengaged.
- the stroke of the presser foot 162 must be adjusted as a function of the cutting height of the knife 161.
- the machine object of the invention will be coupled to another machine located upstream, such as a thermoforming machine for example.
- the strip 10 is then supplied to the machine of FIG. 1a in steps, from 300 to 400 mm approximately, at an average speed of advance of the order of 4 m / min.
- the jack 110 is adjusted to ensure an average speed of advance of the machine slightly higher than that of the thermoforming machine, 5 m / min for example.
- the advance of the machine being of the order of 30 mm, therefore significantly smaller than the advance of the thermoforming machine, it is advantageous to provide means 300 for regulating the entry of the strip 10 of material in the feed and cutting means 100.
- FIG. 1a gives an embodiment in which said input regulation means 300 comprise a first fixed pulley 301, a movable pulley 302 and a second fixed pulley 303, the movable pulley 302 being subjected to a force F3, here its own weight, able to tension the strip 10 of material so as to absorb excess lengths of strip coming from upstream of the machine, corresponding to the steps of the thermoformer.
- a force F3 here its own weight
- the movable pulley 302 descends in the direction of the bottom of the double arrow F4 until that the excess strip is stretched between the fixed pulleys 301 and 303. Then, the advance means advancing the strip 10 towards the exit of the machine, the length of the strip between the fixed pulleys decreases and the pulley mobile goes up in the direction of the top of the double arrow F4 until it eventually reaches a position of minimum winding length of the strip 10, identified by a switch K1 for supplying the jack 110. At this time the machine, not having enough length of tape, stops and waits for the arrival of a new length of tape equal to the pitch of the upstream thermoformer. Pulley 302 goes back down and releases switch K1 which restarts the jack.
- the movable pulley 302 also has a maximum stroke position, identified by a switch K2 connected to an alarm: horn, light signal, etc. It is thus possible to detect a break in the belt 10 or a stop untimely machine.
- FIG. 1a We can also observe in Figure 1a the presence of a movable plate 410, integral with the knife holder tool 160.
- This plate 410 is intended to allow the isolation of the machine mechanism and the sealing of the volume 400 of recovery of the pieces of cut strips, this when in the regulation phase of entry of the strips at the advance step of the thermoforming machine, said knife-carrying tool 160 is stopped in the low position, the movable pulley 302 having reached the switch K1 . At this time, suction or blowing means are put into operation so as to evacuate the cut pieces present in the volume 400.
Description
La présente invention concerne une machine pour conditionner des bandes continues de matériau en vue de leur élimination.The present invention relates to a machine for conditioning continuous strips of material for their elimination.
L'invention trouve une application particulièrement avantageuse dans le domaine de l'industrie agro-alimentaire, notamment en association avec des thermoformeuses.The invention finds a particularly advantageous application in the field of the food industry, in particular in association with thermoformers.
Dans l'industrie agro-alimentaire, le conditionnement de certains aliments, tels que yaourts,etc., est réalisé à l'aide de machines appelées thermoformeuses qui utilisent des films de matériau plastique approprié. Ceux-ci sont entraînés le long des machines par un convoyeur qui pince les films sur les côtés de manière à les maintenir pendant leur transport. Après thermoformage et conditionnement des aliments, les films de matériau plastique sont découpés afin de dégager les produits ainsi conditionnés. Au cours de cette opération de découpe, les bords des films engagés dans l'appareil de convoyage sont perdus sous forme de bandes, ou lisières, d'environ 10 mm de largeur, dont il faut se débarrasser.In the food industry, the packaging of certain foods, such as yogurts, etc., is carried out using machines called thermoformers which use films of suitable plastic material. These are driven along the machines by a conveyor which clamps the films on the sides so as to maintain them during their transport. After thermoforming and packaging of the food, the plastic material films are cut in order to release the products thus conditioned. During this cutting operation, the edges of the films engaged in the conveying apparatus are lost in the form of strips, or selvedges, of approximately 10 mm in width, which must be discarded.
Il existe actuellement plusieurs moyens pour conditionner les lisières provenant des thermoformeuses en vue de leur élimination. Une première méthode consiste à les découper au pas d'avance de la thermoformeuse, soit 300 à 400 mm, et à récupérer les lisières ainsi découpées dans des conteneurs. Dans ce système, le volume occupé par les lisières est important, le taux de remplissage des conteneurs ne dépassant pas 20%. D'autre part, aucune centralisation des déchets n'étant possible, il faut donc manipuler les conteneurs plusieurs fois par jour.There are currently several ways to condition selvedges from thermoformers for disposal. A first method consists of cutting them in advance from the thermoforming machine, ie 300 to 400 mm, and recovering the selvedges thus cut in containers. In this system, the volume occupied by the selvedges is important, the container filling rate not exceeding 20%. On the other hand, no centralization of waste being possible, it is therefore necessary to handle the containers several times a day.
Selon une deuxième méthode de conditionnement, les lisières sortant des thermoformeuses sont enroulées sur de grandes bobines dont le diamètre peut atteindre 800 mm. Toutefois, ces bobines ont une autonomie limitée à une durée de l'ordre de 6 heures, et elles exigent des opérations de manipulation et de démontage d'un flasque pour vider les bobines pleines qui demandent un certain laps de temps. De plus, le volume occupé par les lisières dans les conteneurs reste important.According to a second packaging method, the selvedges leaving the thermoforming machines are wound on large coils whose diameter can reach 800 mm. However, these coils have a limited autonomy for a duration of the order of 6 hours, and they require operations of manipulation and disassembly of a flange to empty the full coils which require a certain period of time. In addition, the volume occupied by selvedges in containers remains significant.
Le brevet US - 2 251 312 décrit par exemple un mécanisme de découpe réglée de lisières de bandes métalliques avec les caractéristiques du préambule de la revendication 1. Le problème technique à résoudre par l'objet de la présente invention est de proposer une machine pour conditionner des bandes continues de matériau en vue de leur élimination qui permettrait, associée à une thermoformeuse par exemple, de réduire le volume des bandes, ou lisières, dans les conteneurs de récupération en en augmentant le taux de remplissage, et de limiter les opérations de manutention coûteuses en main d'oeuvre.US Pat. No. 2,251,312 describes, for example, a regulated cutting mechanism for the edges of metal strips with the characteristics of the preamble of claim 1. The technical problem to be solved by the object of the present invention is to provide a machine for packaging continuous strips of material with a view to their elimination which would, associated with a thermoforming machine for example, reduce the volume of the strips, or selvedges, in the recovery containers by increasing the filling rate, and limit the handling operations costly in labor.
La solution au problème technique posé consiste, selon la présente invention, dans une machine avec les caractéristiques de la revendication 1.The solution to the technical problem posed consists, according to the present invention, in a machine with the characteristics of claim 1.
Les morceaux de bandes ainsi découpés peuvent avoir quelques centimètres de longueur et occupent de la sorte un volume relativement faible dans les conteneurs. Il est possible de cette manière d'atteindre des coefficients de remplissage de 90%.The pieces of strip thus cut can be a few centimeters in length and thus occupy a relatively small volume in the containers. In this way it is possible to reach filling coefficients of 90%.
Les conteneurs étant beaucoup mieux remplis, il n'est plus nécessaire de les vider fréquemment, ce qui limite les interventions humaines. Cet avantage est encore amplifié du fait que, les morceaux de bandes étant de dimension réduite, il peut être envisagé de centraliser les déchets dans une installation comprenant une pluralité de machines conformes à l'invention. Dans ce cas, chaque machine étant munie d'un tube de sortie de récupération, ladite installation comporte un tube collecteur des tubes de sortie et des moyens de circulation forcée des morceaux de bandes calibrés au pas d'avance de la machine depuis les tubes de sortie et jusqu'à un conteneur dans lequel débouche le tube collecteur. Les moyens de circulation forcée sont, au choix, des moyens de soufflage ou d'aspiration.The containers being much better filled, it it is no longer necessary to empty them frequently, which limits human intervention. This advantage is further amplified by the fact that, since the pieces of strip are of reduced size, it can be envisaged to centralize the waste in an installation comprising a plurality of machines in accordance with the invention. In this case, each machine being provided with a recovery outlet tube, said installation comprises a collecting tube for the outlet tubes and means for forced circulation of the pieces of strips calibrated at the advance of the machine from the tubes of outlet and to a container into which the collecting tube opens. The means of forced circulation are, as desired, means of blowing or suction.
Il convient de souligner également un avantage essentiel de l'invention résidant dans le fait que peuvent être ainsi conditionnées aussi bien des bandes de matériau souple que de matériau rigide.It should also be emphasized an essential advantage of the invention residing in the fact that strips of flexible material as well as rigid material can thus be conditioned.
La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée.The description which follows with reference to the appended drawings, given by way of nonlimiting examples, will make it clear what the invention consists of and how it can be implemented.
La figure 1a est une vue de face d'une machine conforme à l'invention.Figure 1a is a front view of a machine according to the invention.
La figure 1b est vue de dessus de la machine de la figure 1a.Figure 1b is a top view of the machine of Figure 1a.
La figure 2a est une vue de face des moyens de coupe de la machine de la figure 1a.Figure 2a is a front view of the cutting means of the machine of Figure 1a.
La figure 2b est une vue de côté des moyens de coupe de la figure 2a.Figure 2b is a side view of the cutting means of Figure 2a.
La figure 1a montre en vue de face une machine pour conditionner des bandes continues de matériau, telles que la bande 10, en vue de leur élimination. Comme rappelé plus haut, la bande 10 peut être une lisière provenant d'une thermoformeuse.FIG. 1a shows a front view of a machine for conditioning continuous strips of material, such as
La machine de la figure la comprend des moyens 100 d'avance par pas et de coupe de la bande 10 en morceaux calibrés au pas d'avance de la machine, suivis de moyens 200,201 de récupération desdits morceaux de bande de matériau.The machine of FIG. 1 a comprises means 100 for advancing by step and for cutting the
Comme on peut le voir sur la figure 1a, les moyens 100 d'avance par pas et de coupe comprennent un organe moteur 110, ici un vérin pneumatique, qui applique une course alternative à une tige 111 d'entraînement, course représentée par la double flèche F1.As can be seen in FIG. 1a, the
Deux tiges, à savoir une tige 120 à crémaillère et une tige lisse 121, sont solidaires de la tige 111 d'entraînement qui leur confère ainsi son mouvement alternatif. Les figures 1b et 2a montrent plus clairement la disposition des deux tiges 120 et 121.Two rods, namely a
Ainsi que l'illustrent les figures 1a et 1b, une roue dentée 130 à roue libre 131 est entraînée en rotation par la tige 120 à crémaillère. Un galet 140 d'avance de la bande 10 de matériau est solidaire de la roue libre 131 de la roue dentée 130 de manière à provoquer l'avance de la bande pendant un premier temps de la course alternative F1 de la tige 111 d'entraînement. Dans le mode de réalisation illustré aux figures 1a et 1b, l'avance de la bande 10 se produit lorsque la tige d'entraînement, et donc la tige 120 à crémaillère, se déplace vers le haut. Le rapport de réduction entre le diamètre du galet 140 d'avance et celui de la roue dentée 130 permet d'ajuster la longueur de bande coupée, c'est à dire le pas d'avance de la machine, en fonction de la course du vérin 110.As illustrated in FIGS. 1a and 1b, a
On peut voir sur les figures 1a et 1b que, de manière à maintenir la bande 10 contre le galet 140 d'avance, un contre-galet 150 est soumis à une force F2 de rappel en direction du galet d'avance. La force F2 de rappel est produite, par exemple, par un ressort 151 de torsion.It can be seen in FIGS. 1a and 1b that, in order to maintain the
Les figures 1a à 2b montrent des moyens de coupe proprement dits comprenant, d'une part, un outil porte-couteau 160, portant un couteau 161 en biseau solidaire de la tige 120 à crémaillère et de la tige lisse 121, et, d'autre part, un contre-couteau 170 fixe, la bande 10 à couper circulant entre l'outil porte-couteau et le contre-couteau fixe.FIGS. 1a to 2b show cutting means proper comprising, on the one hand, a knife-carrying
L'outil porte-couteau 160 est donc animé par rapport au contre-couteau 170 du même mouvement alternatif que la tige 120 à crémaillère de sorte que, dans un premier temps, l'outil porte-couteau se dégage de la bande 10 pendant que celle-ci avance d'un pas, et, dans un deuxième temps de la course alternative de la tige 111 d'entraînement, l'outil porte-couteau 160 vient couper la bande, qui repose alors sur le contre-couteau 170, en morceaux calibrés au pas d'avance de la machine, pendant que le galet 140 d'avance est fixe, et donc la bande 10 immobile, du fait de la roue libre 131.The knife-
Les morceaux de bande de matériau ainsi coupés sont récupérés, en sortie de la machine, par un tube 200 de sortie en direction d'un conteneur 201, non représenté, dans lequel débouche ledit tube de sortie.The pieces of strip of material thus cut are recovered, at the outlet of the machine, by an
Conformément à la figure 2a, l'outil porte-couteau 160 est muni d'un pied presseur 162 monté sur un ressort 163, apte à maintenir la bande 10 de matériau pressée contre le contre-couteau 170 pendant la coupe de la bande et jusqu'au dégagement complet de l'outil porte-couteau 160. On évite ainsi que la bande 10 n'avance alors que le couteau 161 n'est pas encore complètement dégagé. Bien entendu, la course du pied presseur 162 doit être ajustée en fonction de la hauteur de coupe du couteau 161.In accordance with FIG. 2a, the knife-
Le plus souvent, la machine objet de l'invention, sera couplée à une autre machine située en amont, telle qu'une thermoformeuse par exemple. La bande 10 est alors fournie à la machine de la figure 1a par pas, de 300 à 400 mm environ, selon une vitesse moyenne d'avance de l'ordre de 4m/mn.Most often, the machine object of the invention will be coupled to another machine located upstream, such as a thermoforming machine for example. The
De manière à éviter un bourrage de la machine, le vérin 110 est réglé pour assurer une vitesse moyenne d'avance de la machine un peu supérieure à celle de la thermoformeuse, 5m/mn par exemple.In order to avoid jamming of the machine, the
Le pas d'avance de la machine étant de l'ordre de 30 mm, donc sensiblement plus faible que le pas d'avance de la thermoformeuse, il y a avantage à prévoir des moyens 300 de régulation d'entrée de la bande 10 de matériau dans les moyens 100 d'avance et de coupe.The advance of the machine being of the order of 30 mm, therefore significantly smaller than the advance of the thermoforming machine, it is advantageous to provide
La figure 1a donne un mode de réalisation dans lequel lesdits moyens 300 de régulation d'entrée comprennent une première poulie fixe 301, une poulie mobile 302 et une deuxième poulie fixe 303, la poulie mobile 302 étant soumise à une force F3, ici son propre poids, apte à tendre la bande 10 de matériau de manière à absorber des longueurs de bande en excès provenant de l'amont de la machine, correspondant aux pas de la thermoformeuse.FIG. 1a gives an embodiment in which said input regulation means 300 comprise a first fixed pulley 301, a
Ainsi, lorsque la machine reçoit une longueur de 300 à 400 mm, et ne pouvant l'absorber immédiatement étant donné son propre pas d'avance beaucoup plus faible, la poulie mobile 302 descend dans la direction du bas de la double flèche F4 jusqu'à ce que la bande en excès soit tendue entre les poulies fixes 301 et 303. Puis, les moyens d'avance faisant progresser la bande 10 vers la sortie de la machine, la longueur de la bande comprise entre les poulies fixes diminue et la poulie mobile remonte dans la direction du haut de la double flèche F4 jusqu'à ce qu'elle atteigne éventuellement une position de longueur minimum d'enroulement de la bande 10, repérée par un interrupteur K1 d'alimentation du vérin 110. A ce moment la machine, n'ayant pas assez de longueur de bande, s'arrête et attend l'arrivée d'une nouvelle longueur de bande égale au pas de la thermoformeuse amont. La poulie 302 redescend et dégage l'interrupteur K1 qui remet en marche le vérin.Thus, when the machine receives a length of 300 to 400 mm, and being unable to absorb it immediately given its own much smaller advance step, the
A titre de sécurité, la poulie mobile 302 présente également une position de course maximum, repérée par un interrupteur K2 relié à une alarme: klaxon, signal lumineux, etc.. Il est ainsi possible de détecter une rupture de la bande 10 ou un arrêt intempestif de la machine.For safety, the
On peut également observer sur la figure 1a la présence d'une plaque mobile 410, solidaire de l'outil porte-couteau 160. Cette plaque 410 est destinée à permettre l'isolation du mécanisme de la machine et l'étanchéité du volume 400 de récupération des morceaux de bandes coupés, ceci lorsqu'en phase de régulation d'entrée des bandes au pas d'avance de la thermoformeuse, ledit outil porte-couteau 160 est arrêté en position basse, la poulie mobile 302 ayant atteint l'interrupteur K1. A ce moment, des moyens d'aspiration ou de soufflage sont mis en fonctionnement de manière à évacuer les morceaux coupés présents dans le volume 400.We can also observe in Figure 1a the presence of a
Claims (10)
- A machine for handling strips (10) of material in order to remove them, the said machine consisting of means (100) for feeding the said strips (10) forward and cutting them into calibrated pieces, followed by means (200, 201) for catching the said pieces of material strips, characterised in that the feeding means are designed to move the strips forward in steps and the cutting means are designed to cut the strips into calibrated pieces in synchronisation with the feed-pitch of the machine, the said stepper feeder and cutting means consisting of :- a motor element (110 designed to apply a reciprocating motion (F1) to a driving rod (111),- a control rod (120) integral with the driving rod (111),- a gear wheel (130) with a freewheel (131) driven by the control rod (120),- a guide roller (140) for moving the strips (10) of material forward, integral with the freewheel (131) so as to move the said strips forward during a first stroke of the reciprocating movement (F1) of the driving rod (111),- a counter-roller (150) to which a return force (F2) is applied in the direction of the forward roller (140) so as to press the strips (10) of material against the said forward roller,- a blade-holder tool (160) integral with the control rod (120) and a fixed counter-blade (170), the blade-holder tool being designed to cut the strips (10) of material into calibrated pieces during a second stroke of the reciprocating movement (F1) of the driving rod, at which point the forward roller (140) is held by means of the freewheel (131) of the gear wheel (130).
- A machine as claimed in claim 1, characterised in that the blade-holder tool (160) is provided with a presser foot (162) mounted on at least one spring (163), designed to keep the strips (10) of material pressed against the counter-blade (170) whilst the said strips are being cut and until the blade-holder tool (160) has been fully released.
- A machine as claimed in claim 1 or claim 2, characterised in that the said machine also has means (300) for regulating the degree to which the strips (10) of material penetrate the step-feeder and cutter means (100).
- A machine as claimed in claim 3, characterised in that the said feed regulating means consist of a first fixed pulley (301), a mobile pulley (302) and a second fixed pulley (303), whereby a force (F3) is applied to the mobile pulley to tauten the strips (10) of material so that the excess strip lengths from upstream of the machine are taken up.
- A machine as claimed in claim 4, characterised in that the mobile pulley has a position at which the strips (10) of material are wound at minimum length, registered by a power switch (K1) of the motor element (110) of the machine.
- A machine as claimed in claim 4 or claim 5, characterised in that the mobile pulley (302) has a position of maximum travel, registered by an alarm switch (K2).
- A machine as claimed in any one of claims 1 to 6, characterised in that the means for catching the pieces of calibrated strips in time with the machine pitch consist of an outlet tube (200) and a container (201) into which the said outlet tube opens.
- A machine as claimed in one of claims 3 to 7, characterised in that a mobile plate (410) integral with the blade-holder tool (160) allows a catchment volume (400) for the pieces of strip to be isolated and sealed when the said blade-holder stops in the lower position when subjected to the action of the said regulating means (300).
- Plant consisting of a plurality of machines as claimed in any one of claims 1 to 8, characterised in that each machine is provided with an outlet catchment tube, the said plant having a collector tube for the outlet tubes and means for forcing the pieces of calibrated strip to circulate with the forward pitch of the machine from the outlet tubes to a container into which the collector tube opens.
- Application of the machine as claimed in any one of claims 1 to 8 or the plant as claimed in claim 9 to vacuum thermo-forming machinery as used in the agri-food industry.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9305890A FR2705093B1 (en) | 1993-05-12 | 1993-05-12 | MACHINE FOR CONDITIONING CONTINUOUS STRIPS OF MATERIAL FOR THEIR DISPOSAL. |
| FR9305890 | 1993-05-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0624440A1 EP0624440A1 (en) | 1994-11-17 |
| EP0624440B1 true EP0624440B1 (en) | 1997-10-08 |
Family
ID=9447184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19940401081 Expired - Lifetime EP0624440B1 (en) | 1993-05-12 | 1994-05-13 | Machine for preparing webs in order to destroy them |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0624440B1 (en) |
| DE (1) | DE69406044T2 (en) |
| ES (1) | ES2108950T3 (en) |
| FR (1) | FR2705093B1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2842795B1 (en) * | 2002-07-23 | 2004-10-01 | Additif | DEVICE FOR CONDITIONING CONTINUOUS STRIPS OF MATERIAL SUCH AS EDGES GENERATED ON THERMOFORMING UNITS |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2251312A (en) * | 1938-06-18 | 1941-08-05 | Carl M Yoder | Trimming and/or cutting mechanism |
| FR980357A (en) * | 1943-02-08 | 1951-05-11 | Automatic paper tensioner | |
| JPS5969340A (en) * | 1982-10-08 | 1984-04-19 | Taiyo Shokai:Kk | Method and device for controlling transfer of synthetic resin film strip |
| DD286320A5 (en) * | 1989-08-08 | 1991-01-24 | Veb Erste Maschinenfabrik Karl-Marx-Stadt,De | DEVICE FOR REMOVING AND CRUSHING CIRCULAR FILM CABLE TAPES |
-
1993
- 1993-05-12 FR FR9305890A patent/FR2705093B1/en not_active Expired - Fee Related
-
1994
- 1994-05-13 DE DE1994606044 patent/DE69406044T2/en not_active Expired - Fee Related
- 1994-05-13 ES ES94401081T patent/ES2108950T3/en not_active Expired - Lifetime
- 1994-05-13 EP EP19940401081 patent/EP0624440B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| FR2705093B1 (en) | 1995-08-04 |
| DE69406044T2 (en) | 1998-01-29 |
| FR2705093A1 (en) | 1994-11-18 |
| ES2108950T3 (en) | 1998-01-01 |
| DE69406044D1 (en) | 1997-11-13 |
| EP0624440A1 (en) | 1994-11-17 |
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