EP0861204A1 - Stacking pressure control device for a horizontal book stacking device - Google Patents

Stacking pressure control device for a horizontal book stacking device

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Publication number
EP0861204A1
EP0861204A1 EP96938304A EP96938304A EP0861204A1 EP 0861204 A1 EP0861204 A1 EP 0861204A1 EP 96938304 A EP96938304 A EP 96938304A EP 96938304 A EP96938304 A EP 96938304A EP 0861204 A1 EP0861204 A1 EP 0861204A1
Authority
EP
European Patent Office
Prior art keywords
stacking
pressure
notebooks
vertical wall
strain gauge
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
EP96938304A
Other languages
German (de)
French (fr)
Other versions
EP0861204B1 (en
Inventor
Jean-Pierre Bodereau
Gilles Bodereau
Laurent Vernon
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.)
Realisations Etudes & Commercialisation De Materiel Pour L'industrie Sa
Original Assignee
Realisations Etudes & Commercialisation De Materiel Pour L'industrie 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 Realisations Etudes & Commercialisation De Materiel Pour L'industrie Sa filed Critical Realisations Etudes & Commercialisation De Materiel Pour L'industrie Sa
Publication of EP0861204A1 publication Critical patent/EP0861204A1/en
Application granted granted Critical
Publication of EP0861204B1 publication Critical patent/EP0861204B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3072—Arrangements for removing completed piles by moving a surface supporting the pile of articles on edge, e.g. by using belts or carriages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
    • B65H31/06—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled on edge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/421—Forming a pile
    • B65H2301/4214—Forming a pile of articles on edge
    • B65H2301/42146—Forming a pile of articles on edge by introducing articles from above
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4226—Delivering, advancing piles
    • B65H2301/42265—Delivering, advancing piles by moving the surface supporting the pile of articles on edge, e.g. conveyor or carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/40—Movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/30—Forces; Stresses
    • B65H2515/34—Pressure, e.g. fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/20—Sensing or detecting means using electric elements
    • B65H2553/21—Variable resistances, e.g. rheostats, potentiometers or strain gauges

Definitions

  • the stacking pressure depends on the parameters of incoming and outgoing notebooks during stacking.
  • the greater the flow of arrival of notebooks for a constant output flow of notebooks the greater the stacking pressure and vice versa.
  • the greater the flow of exit of notebooks and the lower the stacking pressure and vice versa the measurement of the stacking pressure during a production makes it possible to modify certain stacking parameters, in particular the output rate of the notebooks, in order to obtain a constant stacking pressure while preserving the stacking conditions which must not be disturbed by this measure. In fact, it is important to keep the stacking point as fixed as possible.
  • the subject of the invention is a device for regulating the stacking pressure for a fixed device for horizontal stacking of notebooks on a stacking table with arrival along a vertical wall for stacking notebooks. , characterized in that it consists of a strain gauge as a pressure sensor capable of continuously measuring the stacking pressure exerted directly on the vertical wall and of controlling the speed of the stacking table.
  • said axis of the pulleys is free to pivot around the second axis via the rod.
  • the strain gauge extending against said rod is therefore positioned to directly measure the pressure exerted by the notebooks on the stacking belts and transforms this measurement into an electrical signal acting on the speed of the stacking table.
  • the device according to the invention advantageously makes it possible to measure the pressure at a single point, thus avoiding disturbances, even for a displacement of the minimum stacking point and over the entire range of the strain gauge, thus allowing a measurement to be obtained analog and linear suitable for speeding up or slowing down the advance of the stacking table without causing disturbances.
  • FIG. 3 represents a side elevation view of a variant of FIG. 2.
  • a strain gauge 3 placed behind the vertical wall 2 directly measures the pressure exerted by the stacking of notebooks C ⁇ on said vertical wall 2 and transforms it into an electrical signal controlling the speed control means of stacking table 1.
  • the strain gauge 6 measures the stress exerted, varying as a function of the distance d of displacement of the stacking point, and transforms it into an electrical quantity which will act on the means for controlling the speed of the stacking table 1 .

Abstract

PCT No. PCT/FR96/01791 Sec. 371 Date Jul. 13, 1998 Sec. 102(e) Date Jul. 13, 1998 PCT Filed Nov. 13, 1996 PCT Pub. No. WO97/18152 PCT Pub. Date May 22, 1997A stacking pressure control device for a stationary horizontal book stacking device in which books (C) fed at a constant rate along a vertical wall (2) are stacked on a stacking table (1). The control device consists of a strain gauge used as a pressure sensor (3, 6, 8) for continuously measuring the stacking pressure exerted directly on the vertical wall (2), and controlling the speed of the stacking table (1). The control device may be used in a horizontal book stacking device.

Description

15 Dispositif de régulation de la pression d'empilage pour un dispositif d'empilage horizontal de cahiers.15 Stacking pressure regulation device for a horizontal stacking device for notebooks.
La présente invention concerne un dispositif de régulation de la pression d'empilage dans un dispositif d'empilage 20 horizontal de cahiers. Un tel dispositif d'empilage de cahier horizontal est décrit dans la demande de brevet français n°94 04031 appartenant au demandeur.The present invention relates to a device for regulating the stacking pressure in a device for horizontal stacking of notebooks. Such a device for stacking a horizontal notebook is described in French patent application no. 94 04031 belonging to the applicant.
On a pu observer que l'obtention d'un empilage de bonne 25 qualité dépend en grande partie de la constance de la pression d'empilage. Cependant, cette pression d'empilage constante pour un cahier donné d'une production donnée change d'une production à une autre du fait du changement des conditions de production, compte tenu des variations M) propres aux paramètres de production qui sont l'épaisseur du papier, l'épaisseur de l'encre, la variation du grammage, du pas de nappe, etc..It has been observed that obtaining a good quality stack depends largely on the constancy of the stacking pressure. However, this constant stacking pressure for a given notebook of a given production changes from one production to another due to the change in production conditions, taking into account the variations M) specific to the production parameters which are the thickness paper, ink thickness, variation in grammage, tablecloth pitch, etc.
On a observé également que ces conditions de production ">5 peuvent changer également a l'intérieur d'une même production. En conséquence, il est nécessaire de pouvoir adapter la pression d'empilage entre deux productions différentes mais également au sein d'une même production afin de réaliser un empilage de bonne qualité. Il est de ce fait nécessaire de pouvoir mesurer en permanence cette pression d'empilage afin de l'adapter.It has also been observed that these production conditions "> 5 can also change within the same production. Consequently, it is necessary to be able to adapt the stacking pressure between two different productions but also within a same production in order to achieve good quality stacking. It is therefore necessary to be able to permanently measure this stacking pressure in order to adapt it.
La plupart des dispositifs d'empilage ne comportent pas de dispositif de régulation de la pression d'empilage et celle-ci est donc fixée de manière indirecte par la valeur de la vitesse d'avancement de la table d'empilage. Dans ce type de dispositif "aveugle", il n'est pas possible d'intervenir afin de permettre une adaptation de la pression d'empilage en cours de production. Seule une variation de la vitesse de la table d'empilage permet d'adapter, un tant soit peu, la pression d'empilage entre des productions différentes.Most stacking devices do not include a device for regulating the stacking pressure and this is therefore fixed indirectly by the value of the forward speed of the stacking table. In this type of "blind" device, it is not possible to intervene in order to allow an adaptation of the stacking pressure during production. Only a variation in the speed of the stacking table makes it possible to adapt, a little bit, the stacking pressure between different productions.
Une solution visant a permettre une adaptation de la pression d'empilage consiste à utiliser dans le dispositif d'empilage une tête d'empilage flottante telle que dans EP- A-0 623 542, c'est-à-dire qu'on peut obtenir un point d'empilage variable permettant une variation de la pression d'empilage. Cependant, dans ce cas, le dispositif de détection fonctionnant par gravité sur le dispositif d'empilage flottant doit pouvoir vaincre sa propre inertie. En outre, l'empilage peut être perturbé car la pression d'empilage doit être suffisamment forte pour vaincre l'inertie du dispositif flottant, ce qui risque d'abîmer les cahiers par marquage sur le pli (phénomène de déroulage) ou sur le motif imprimé (phénomène de maculage).One solution intended to allow an adaptation of the stacking pressure consists in using in the stacking device a floating stacking head such as in EP-A-0 623 542, that is to say that one can obtain a variable stacking point allowing a variation of the stacking pressure. However, in this case, the detection device operating by gravity on the floating stacking device must be able to overcome its own inertia. In addition, stacking can be disturbed because the stacking pressure must be strong enough to overcome the inertia of the floating device, which risks damaging the notebooks by marking on the fold (unwinding phenomenon) or on the pattern. printed (smudging phenomenon).
La pression d'empilage dépend des paramètres d'arrivée et de sortie de cahiers lors de l'empilage. Ainsi, plus un débit d'arrivée de cahiers est grand pour un débit de sortie de cahiers constant et plus la pression d'empilage est grande et vice-versa. Par contre, pour un débit d'arrivée de cahiers constant, plus le débit de sortie de cahiers est grand et plus la pression d'empilage est faible et inversement. Il est donc important que la mesure de la pression d'empilage au cours d'une production permette de modifier certains paramètres de l'empilage, en particulier le débit de sortie des cahiers, afin d'obtenir une pression d'empilage constante tout en préservant les conditions d'empilage qui ne doivent pas être perturbées par cette mesure. En effet, il est important de conserver un point d'empilage le plus fixe possible.The stacking pressure depends on the parameters of incoming and outgoing notebooks during stacking. Thus, the greater the flow of arrival of notebooks for a constant output flow of notebooks, the greater the stacking pressure and vice versa. On the other hand, for a constant flow of arrival of notebooks, the greater the flow of exit of notebooks and the lower the stacking pressure and vice versa. It is therefore important that the measurement of the stacking pressure during a production makes it possible to modify certain stacking parameters, in particular the output rate of the notebooks, in order to obtain a constant stacking pressure while preserving the stacking conditions which must not be disturbed by this measure. In fact, it is important to keep the stacking point as fixed as possible.
Une solution consiste alors à proposer un dispositif de régulation de la pression d'empilage dans lequel on mesure cette pression. Ainsi, on peut positionner une plaque dans le chemin d'arrivée verticale des cahiers sur la table d'empilage telle que dans EP-A-0 339 002. Cette plaque est montée pivotante à son extrémité supérieure et est reliée à un levier raccordé à son autre extrémité à un ressort. Lors de l'arrivée des cahiers sur la table, la plaque pivote en fonction de la pression desdits cahiers et le levier entre en mouvement également. Un capteur décèle le mouvement dudit levier et commande la régulation de la vitesse d'avancée de la table en fonction des informations reçues.One solution then consists in proposing a device for regulating the stacking pressure in which this pressure is measured. Thus, one can position a plate in the vertical arrival path of the notebooks on the stacking table as in EP-A-0 339 002. This plate is pivotally mounted at its upper end and is connected to a lever connected to its other end to a spring. When the notebooks arrive on the table, the plate pivots according to the pressure of said notebooks and the lever also moves. A sensor detects the movement of said lever and controls the regulation of the speed of advancement of the table as a function of the information received.
Cependant, dans un tel dispositif, la plaque interfère dans l'arrivée des cahiers ou bien frotte contre lesdits cahiers ce qui perturbe l'empilage qui n'est plus suffisamment précis.However, in such a device, the plate interferes in the arrival of the notebooks or rubs against said notebooks which disturbs the stacking which is no longer sufficiently precise.
Dans le document JP-A-59102761 , on propose de placer un capteur de pression dans le chemin d'arrivée verticale des cahiers qui entraîne l'avancée de la table d'empilage d'une certaine valeur lorsqu'il détecte une valeur de pression au-dessus d'une valeur prédéterminée. Un tel dispositif ne permet paε une régulation en continu de la pression d'empilage et est plutôt destiné à régler, par à coup, l'avance des cahiers sur une table d'empilage. De ce fait, on obtient un empilage de précision moyenne et perturbé. Le document US-A-4 772 003 décrit un dispositif dans lequel une courroie d'amenée verticale des cahiers eεt montée oscillante de manière à constituer un capteur de pression, l'oscillation étant mesurée pour réguler en conséquence la vitesse d'avnacée de l'empilage. Cependant, un tel dispositif doit d'abord vaincre sa propre inertie avant de pouvoir donner une réelle mesure de la pression d'empilage. De ce fait, la mesure est souvent imprécise ou à effet de seuil .In document JP-A-59102761, it is proposed to place a pressure sensor in the vertical arrival path of the notebooks which causes the advancement of the stacking table by a certain value when it detects a pressure value above a predetermined value. Such a device does not allow continuous regulation of the stacking pressure and is rather intended to regulate, by sudden, the advance of the notebooks on a stacking table. Therefore, we obtain a stacking of medium precision and disturbed. The document US Pat. stacking. However, such a device must first overcome its own inertia before it can give a real measurement of the stacking pressure. As a result, the measurement is often imprecise or has a threshold effect.
Afin de pallier ces inconvénients, la présente invention propose un dispoεitif de régulation de la pression d'empilage permettant la mesure continue de cette pression afin d'agir sur le débit de sortie des cahiers du point d'empilage en modifiant la vitesse d'avancement de la table d'empilage tout en maintenant le point d'empilage le plus fixe possible en maintenant la pression d'empilage constante.In order to overcome these drawbacks, the present invention provides a device for regulating the stacking pressure allowing continuous measurement of this pressure in order to act on the output flow of the notebooks from the stacking point by modifying the forward speed. of the stacking table while keeping the stacking point as fixed as possible while keeping the stacking pressure constant.
A cet effet, l'invention a pour objet un dispositif de régulation de la pression d'empilage pour un dispositif fixe d'empilage horizontal de cahiers sur une table d'empilage avec arrivée le long d'une paroi verticale d'empilage des cahiers, caractérisé en ce qu'il est constitué d'une jauge de contrainte en tant que capteur de pression propre à mesurer, de manière continue, la pression d'empilage exercée directement sur la paroi verticale et à exercer un contrôle de la vitesse de la table d'empilage.To this end, the subject of the invention is a device for regulating the stacking pressure for a fixed device for horizontal stacking of notebooks on a stacking table with arrival along a vertical wall for stacking notebooks. , characterized in that it consists of a strain gauge as a pressure sensor capable of continuously measuring the stacking pressure exerted directly on the vertical wall and of controlling the speed of the stacking table.
Ainsi, de manière avantageuse, la jauge de contrainte en tant que capteur de pression d'empilage peut être placée de manière à mesurer directement, en continu et de manière linéaire, la pression exercée sur la paroi verticale afin de détecter les variations intervenant au cours d'une production afin d'intervenir ensuite sur la vitesse de la table d'empilage permettant ainsi de corriger les variations de la pression et de la maintenir constante tout au long de l'empilage. En outre, de manière avantageuse, le dispositif comporte un potentiomètre permettant de fixer électriquement une pression d'empilage désirée au point d'empilage, en agissant non plus physiquement sur la pression mais sur le signal électrique issu de la jauge de contrainte ce qui permet d'éviter tout réglage mécanique de pression en dehors d'un tarage à l'installation du dispositif.Thus, advantageously, the strain gauge as a stacking pressure sensor can be placed so as to measure directly, continuously and in a linear fashion, the pressure exerted on the vertical wall in order to detect the variations occurring during of a production in order to then intervene on the speed of the stacking table thus making it possible to correct the variations in pressure and to keep it constant throughout the stacking. In addition, advantageously, the device comprises a potentiometer making it possible to electrically fix a desired stacking pressure at the stacking point, by no longer acting physically on the pressure but on the electrical signal coming from the strain gauge which allows avoid any mechanical pressure adjustment outside of a calibration when installing the device.
On obtient de cette manière une régulation de la pression εur toute la plage de la jauge de contrainte ainεi qu'une posεibilité de faire varier la valeur de la preεsion d'empilage recherchée en fonction des souhaits des utilisateurs. Ainsi, on peut en fonction de la valeur de la presssion d'empilage fixée par l'intermédiaire du potentiomètre obtenir une variation de la pression entre cahiers au sein de l'empilage.In this way a pressure regulation is obtained over the entire range of the strain gauge as well as a possibility of varying the value of the stacking pressure sought according to the wishes of the users. Thus, depending on the value of the stacking pressure fixed by means of the potentiometer, it is possible to obtain a variation of the pressure between notebooks within the stacking.
Selon un premier mode de réalisation de l'invention, la jauge de contrainte est placée derrière la paroi verticale et mesure donc directement la pression exercée par l'empilage de cahiers sur ladite paroi, la transformant en un signal électrique commandant le moyen de commande de la vitesse de la table d'empilage.According to a first embodiment of the invention, the strain gauge is placed behind the vertical wall and therefore directly measures the pressure exerted by the stacking of notebooks on said wall, transforming it into an electrical signal controlling the control means of the speed of the stacking table.
Lorsque la paroi verticale est constituée par des courroies d'empilage, l'axe de rotation des poulies sur lesquelles sont enroulées au moins les courroies centrales d'empilage, proche du point d'empilage sur la table d'empilage est relié par une tige montée pivotante autour d'un second axe parallèle audit axe de rotation.When the vertical wall consists of stacking belts, the axis of rotation of the pulleys on which at least the central stacking belts are wound, close to the stacking point on the stacking table is connected by a rod pivotally mounted about a second axis parallel to said axis of rotation.
Selon un second mode de réalisation de l'invention, la jauge de contrainte est alors placée de manière à s'étendre contre ladite tige.According to a second embodiment of the invention, the strain gauge is then placed so as to extend against said rod.
Sous l'effet de la pression exercée par les cahiers lors de l'empilage, ledit axe des poulies est libre de pivoter autour du second axe par l'intermédiaire de la tige. La jauge de contrainte s'étendant contre ladite tige est donc positionnée pour mesurer directement la pression exercée par les cahiers sur les courroies d'empilage et transforme cette mesure en un signal électrique agissant sur la vitesse de la table d'empilage.Under the effect of the pressure exerted by the notebooks during stacking, said axis of the pulleys is free to pivot around the second axis via the rod. The strain gauge extending against said rod is therefore positioned to directly measure the pressure exerted by the notebooks on the stacking belts and transforms this measurement into an electrical signal acting on the speed of the stacking table.
Le dispositif selon l'invention permet avantageusement de mesurer la pression en un seul point évitant ainsi des perturbations et ce, même pour un déplacement du point d'empilage minimal et sur toute la plage de la jauge de contrainte permettant ainsi d'obtenir une mesure analogique et linéaire propre à accélérer ou à ralentir l'avance de la table d'empilage sans provoquer de perturbations.The device according to the invention advantageously makes it possible to measure the pressure at a single point, thus avoiding disturbances, even for a displacement of the minimum stacking point and over the entire range of the strain gauge, thus allowing a measurement to be obtained analog and linear suitable for speeding up or slowing down the advance of the stacking table without causing disturbances.
De préférence, le dispositif est suffisamment miniaturisé pour ne pas perturber l'empilage lors de la mesure de la pression dudit empilage, n'entraînant pas un déplacement d du point d'empilage de plus de 3 mm et en particulier, la jauge de contrainte permet avantageusement de réaliser des mesures pour des déplacements d du point d'empilage inférieurs à 1 mm.Preferably, the device is sufficiently miniaturized so as not to disturb the stack during the measurement of the pressure of said stack, not causing a displacement d of the stacking point of more than 3 mm and in particular, the strain gauge advantageously allows measurements to be made for displacements d of the stacking point of less than 1 mm.
Ainsi, la force exercée par la pression des cahiers est suffisamment détectable par une jauge de contrainte pour permettre une mesure de la variation de la pression mais également suffisamment minime pour permettre d'éviter toute perturbation dans l'empilage. En outre, toute variation de pression influant sur ledit point d'empilage est immédiatement compensée par le dispositif selon l'invention du fait de la mesure continue de cette pression.Thus, the force exerted by the pressure of the notebooks is sufficiently detectable by a strain gauge to allow a measurement of the variation of the pressure but also sufficiently minimal to allow to avoid any disturbance in the stack. In addition, any variation in pressure influencing said stacking point is immediately compensated for by the device according to the invention due to the continuous measurement of this pressure.
On décrira maintenant plus en détail la présente invention en référence au dessin annexé dans lequel :The present invention will now be described in more detail with reference to the accompanying drawing in which:
la figure 1 représente une vue en élévation latérale du premier mode de réalisation du dispositif de régulation de 1 ' invention ; la figure 2 représente une vue en élévation latérale du second mode de réalisation du dispositif de régulation de 1 ' invention ; etFigure 1 shows a side elevational view of the first embodiment of the regulating device of the invention; Figure 2 shows a side elevational view of the second embodiment of the regulating device of the invention; and
la figure 3 représente une vue en élévation latérale d'une variante de la figure 2.FIG. 3 represents a side elevation view of a variant of FIG. 2.
Le dispositif d'empilage horizontal de cahiers comporte, de manière schématique, une table d'empilage 1 et une paroi verticale d'empilage 2. Les cahiers C arrivent le long de la paroi verticale 2, leur dos en premier et viennent ensuite buter contre la table d'empilage 1. Une tète d'empilage fixe (non représentée) démarre l'empilage. Le débit d'arrivée des cahiers C est, de préférence, constant tandis que le débit de sortie de l'empilage des cahiers C, dépendant de la vitesse de la table d'empilage 1 peut être modifié par le dispositif de régulation de la pression selon l'invention.The horizontal stacking device for notebooks schematically comprises a stacking table 1 and a vertical stacking wall 2. The notebooks C arrive along the vertical wall 2, their backs first and then come up against the stacking table 1. A fixed stacking head (not shown) starts stacking. The flow rate of the notebooks C is preferably constant while the output flow of the stacking of the notebooks C, depending on the speed of the stacking table 1 can be modified by the pressure regulation device. according to the invention.
Selon la figure 1, une jauge de contrainte 3, placée derrière la paroi verticale 2 mesure directement la pression exercée par l'empilage de cahiers C εur ladite paroi verticale 2 et la transforme en un signal électrique commandant le moyen de commande de la vitesse de la table d'empilage 1.According to FIG. 1, a strain gauge 3, placed behind the vertical wall 2 directly measures the pressure exerted by the stacking of notebooks C ε on said vertical wall 2 and transforms it into an electrical signal controlling the speed control means of stacking table 1.
A la figure 2, on a représenté un second mode de réalisation de l'invention dans lequel la paroi verticale 2 est constituée de courroies. L'axe Y de rotation des poulies 4 autour desquelles les courroies sont enroulées est relie par une tige 5 à un axe Z parallèle. La tige 5 est montée pivotante autour dudit axe Z et fixe sur 1 ' axe Y. Une jauge de contrainte 6 s'étend le long de la tige 5, entre ladite tige 5 et la paroi verticale 2, et mesure directement la pression exercée par les cahiers sur ladite paroi verticale 2 du fait de la contrainte exercée par la tige 5 sur ladite jauge 6 lors du pivotement de ladite tige 5. En effet, du fait de la pression d'empilage contre la paroi verticale 2 ou plus précisément contre les poulies, ledit axe Y des poulies est libre de pivoter autour du second axe Z par l'intermédiaire de la tige 5 et donc de se déplacer. La jauge de contrainte 6 mesure la contrainte exercée, variant en fonction de la distance d de déplacement du point d'empilage, et la transforme en une grandeur électrique qui va agir sur le moyen de commande de la vitesse de la table d'empilage 1.In Figure 2, there is shown a second embodiment of the invention in which the vertical wall 2 consists of belts. The axis Y of rotation of the pulleys 4 around which the belts are wound is connected by a rod 5 to a parallel axis Z. The rod 5 is pivotally mounted around the said Z axis and fixed on the Y axis. A strain gauge 6 extends along the rod 5, between the said rod 5 and the vertical wall 2, and directly measures the pressure exerted by the notebooks on said vertical wall 2 due to the stress exerted by the rod 5 on said gauge 6 during the pivoting of said rod 5. Indeed, due to the stacking pressure against the vertical wall 2 or more precisely against the pulleys, said axis Y of the pulleys is free to pivot around the second axis Z via the rod 5 and therefore to move . The strain gauge 6 measures the stress exerted, varying as a function of the distance d of displacement of the stacking point, and transforms it into an electrical quantity which will act on the means for controlling the speed of the stacking table 1 .
Selon la variante de la figure 3, la tige 5 forme un angle droit au niveau de l'axe Z et présente une portion 7 s'étendant perpendiculairement. Cette portion 7 de la tige 5 s'étend contre une jauge de contrainte 8 qui mesure les variations de la contrainte exercée par la portion 7 de la tige 5 selon le déplacement de ladite tige 5 directement sous l'effet de la presεion exercée par les cahiers C sur la paroi verticale 2. According to the variant of Figure 3, the rod 5 forms a right angle at the axis Z and has a portion 7 extending perpendicularly. This portion 7 of the rod 5 extends against a strain gauge 8 which measures the variations in the stress exerted by the portion 7 of the rod 5 according to the displacement of said rod 5 directly under the effect of the pressure exerted by the notebooks C on the vertical wall 2.

Claims

REVENDICATIONS
1 . Dispositif de régulation de la pression d'empilage pour un dispositif fixe d'empilage horizontal de cahiers sur une1. Stacking pressure regulation device for a fixed device for horizontal stacking of notebooks on a
5 table d'empilage (1) avec arrivée le long d'une paroi verticale (2) des cahiers (C), caractérisé en ce qu'il est constitué d'une jauge de contrainte (3, 6, 8) en tant que capteur de pression propre à mesurer, de manière continue, la presεion d'empilage 10 exercée directement sur la paroi verticale (2) et à exercer un contrôle de la vitesse de la table d'empilage (1).5 stacking table (1) with arrival along a vertical wall (2) of notebooks (C), characterized in that it consists of a strain gauge (3, 6, 8) as pressure sensor capable of continuously measuring the stacking pressure 10 exerted directly on the vertical wall (2) and of controlling the speed of the stacking table (1).
2. Dispositif selon la revendication 1, caractérisée en ce que la jauge de contrainte mesure de l > manière linéaire la pression exercée.2. Device according to claim 1, characterized in that the strain gauge measures the pressure exerted in a linear manner.
3. Dispositif selon l'une des revendications 1 et 2, caractérise en ce que la jauge de contrainte est placée derrière la paroi verticale (2) et mesure directement la3. Device according to one of claims 1 and 2, characterized in that the strain gauge is placed behind the vertical wall (2) and directly measures the
20 pression exercée par l'empilage de cahiers (C) sur ladite paroi (2), la transformant en un signal électrique commandant le moyen de commande de la vitesεe de la table d 'empilage ( 1 ) .20 pressure exerted by stacking notebooks (C) on said wall (2), transforming it into an electrical signal controlling the speed control means of the stacking table (1).
25 4. Dispositif selon l'une des revendications 1 et 2 , caractérise en ce que, lorsque la paroi verticale (2) est constituée par des courroies d'empilage, l'axe de rotation Y des poulies sur lesquelles sont enroulées au moins les courroies centrales d'empilage, proche du point d'empilage io εur la table d'empilage (1), est relié par une tige (5) montée pivotante autour d'un second axe Z parallèle audit axe de rotation Y et la jauge de contrainte (6, 8) est alors placée de manière a s'étendre contre ladite tige (5).25 4. Device according to one of claims 1 and 2, characterized in that, when the vertical wall (2) is constituted by stacking belts, the axis of rotation Y of the pulleys on which are wound at least the central stacking belts, close to the stacking point io ε on the stacking table (1), is connected by a rod (5) pivotally mounted around a second axis Z parallel to said axis of rotation Y and the gauge stress (6, 8) is then placed so as to extend against said rod (5).
i"ι 5. Dispositif selon la revendication 4, caractérise en ce que la jauge de contrainte (6) s'étend le long de la tige (5), entre la tige (5) et la paroi verticale ( 2 ) . i "ι 5. Device according to claim 4, characterized in that the strain gauge (6) extends along the rod (5), between the rod (5) and the vertical wall (2).
6. Dispositif selon la revendication 4, caractérisé en ce que la tige (5) forme un angle droit au niveau de l'axe Z et présente une portion (7) s'étendant perpendiculairement, une jauge de contrainte (8) s'étendant le long de ladite portion (7).6. Device according to claim 4, characterized in that the rod (5) forms a right angle at the level of the axis Z and has a portion (7) extending perpendicularly, a strain gauge (8) extending along said portion (7).
7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce qu'il comporte un potentiomètre pour fixer électriquement la pression désirée au point d'empilage. 7. Device according to one of claims 1 to 6, characterized in that it comprises a potentiometer for electrically fixing the desired pressure at the stacking point.
EP96938304A 1995-11-13 1996-11-13 Stacking pressure control device for a horizontal book stacking device Expired - Lifetime EP0861204B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9513408 1995-11-13
FR9513408A FR2741055B1 (en) 1995-11-13 1995-11-13 DEVICE FOR REGULATING THE STACKING PRESSURE FOR A HORIZONTAL STACKING DEVICE OF NOTEBOOKS
PCT/FR1996/001791 WO1997018152A1 (en) 1995-11-13 1996-11-13 Stacking pressure control device for a horizontal book stacking device

Publications (2)

Publication Number Publication Date
EP0861204A1 true EP0861204A1 (en) 1998-09-02
EP0861204B1 EP0861204B1 (en) 2000-07-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96938304A Expired - Lifetime EP0861204B1 (en) 1995-11-13 1996-11-13 Stacking pressure control device for a horizontal book stacking device

Country Status (7)

Country Link
US (1) US6142464A (en)
EP (1) EP0861204B1 (en)
AT (1) ATE194968T1 (en)
DE (1) DE69609520T2 (en)
ES (1) ES2151679T3 (en)
FR (1) FR2741055B1 (en)
WO (1) WO1997018152A1 (en)

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DE102004010102B4 (en) * 2004-02-27 2010-09-09 Mathias Bäuerle GmbH Control for automatic adjustment of the pressure of a feeder in the inlet area of upright stack displays
DE102004012379B4 (en) * 2004-03-13 2006-01-19 Siemens Ag Method and device for stacking flat items

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US4772003A (en) * 1987-02-24 1988-09-20 Dainihon Insatsu Kabushiki Kaisha Apparatus for stacking signatures or the like
IT1217429B (en) * 1988-04-18 1990-03-22 Omg Pessina Perobelli STACKING MACHINE OF SIGNATURES, WITH CONTINUOUS OPERATION, PROVIDED WITH A SPECIAL DEVICE FOR THE EXPULSION, IN TRANSVERSAL SENSE, OF THE PACKAGE FORMED
DE8808242U1 (en) * 1988-06-27 1988-11-17 Carl Neuburger & Co Gmbh, Wien, At
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Also Published As

Publication number Publication date
ATE194968T1 (en) 2000-08-15
ES2151679T3 (en) 2001-01-01
FR2741055A1 (en) 1997-05-16
EP0861204B1 (en) 2000-07-26
DE69609520T2 (en) 2001-04-19
FR2741055B1 (en) 1998-01-02
WO1997018152A1 (en) 1997-05-22
US6142464A (en) 2000-11-07
DE69609520D1 (en) 2000-08-31

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