EP0161988B1 - Automatic device for the retarding of a booklet before being rectangularly folded in a folder of a printing machine - Google Patents

Automatic device for the retarding of a booklet before being rectangularly folded in a folder of a printing machine Download PDF

Info

Publication number
EP0161988B1
EP0161988B1 EP85400879A EP85400879A EP0161988B1 EP 0161988 B1 EP0161988 B1 EP 0161988B1 EP 85400879 A EP85400879 A EP 85400879A EP 85400879 A EP85400879 A EP 85400879A EP 0161988 B1 EP0161988 B1 EP 0161988B1
Authority
EP
European Patent Office
Prior art keywords
contact
chain
braking
intensity
notebook
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP85400879A
Other languages
German (de)
French (fr)
Other versions
EP0161988A1 (en
Inventor
André Reponty
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.)
Harris Marinoni SA
Original Assignee
Harris Marinoni 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 Harris Marinoni SA filed Critical Harris Marinoni SA
Publication of EP0161988A1 publication Critical patent/EP0161988A1/en
Application granted granted Critical
Publication of EP0161988B1 publication Critical patent/EP0161988B1/en
Expired legal-status Critical Current

Links

Images

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
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/68—Reducing the speed of articles as they advance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/18—Oscillating or reciprocating blade folders

Definitions

  • the invention relates to a device for automatically adjusting the deceleration of the notebook before folding in the square folds of printing press folders.
  • the angle fold system is well known to manufacturers of folding presses for web printing presses.
  • a device to slow down the notebook before folding is generally provided to brake it when it arrives at the square fold station.
  • a slowing device comprising brushes for braking the notebook, a device described in application EP-A-0 130 868, included in the prior art according to article 54 (3) EPC and belonging to the applicant, where a suction force acts on the notebook; or a device using a phase advance of the knife relative to the abutment arrival of the notebook (see FIGS. 1 and 2 of the appended drawings).
  • the notebook (1) to be folded is brought to the folding station between two sets of conveyor belts (2) and (3).
  • This stop (4) is notched in line with the belts (2) and (3) to allow them to pass.
  • the notebook (1) on the other hand stops on the stop (4) which it cannot cross.
  • the knife is articulated around an axis (8), parallel to that of the rollers (5) and receives an oscillating movement from a connecting rod and crank mechanism (9) and (10).
  • the rotation of this connecting rod and crank system is ensured by the following kinematic chain bevel gear (11 and 12), helical gears 113 and 14), (15 and 16).
  • the gear (16) is rotated by the shaft (17), linked to the control of the folder, so that each book produced, the shaft (17) makes a turn.
  • crank pin (9) The locking of a crank pin (9) on its shaft is carried out so that the knife (7) touches the bending book (1), substantially at the moment when the latter reaches the fixed stop (4).
  • the axial position of the helical gears (14) and (15), integral with each other, is determined by a screw nut system.
  • the screw (18) is stopped in translation to the frame, but free to rotate. It is screwed into the nut (19), stopped in rotation but free axially and which therefore, by means of a ball bearing (20) axially displaces the train of helical gears (14) and (15).
  • the entire axial displacement system of the pair of helical intermediate gears (14) and (15) makes it possible to vary the phase of the folding knife (7) relative to the time of arrival of the notebook (1) on the stop (4).
  • the adjustment of the phase of the knife (7) relative to the abutment of the notebook (1) makes it possible, precisely, to make the knife (7) touch the notebook, at a distance from the stop (4) more or less and this while the folder is running.
  • the object of the present invention is to make the adjustment of the notebook slowing down devices automatic before folding.
  • the present invention relates to an automation which makes it possible to regulate the advance of the knife so that the notebook to be folded reaches "just" the stop (4) whatever the grammage of the notebook is pagination; or the various braking forces that can be applied to it brushes, vacuum; and whatever the speed of the machine.
  • the screw (18) shown in Figure 1 is connected by gears (21) and (22) to an electric motor (23).
  • the nut (19) is furthermore provided with limit switch contacts (24) and 125) which limit the travel of this nut and the axial movement of the gears (14) and (15).
  • the motor (23) is electrically controlled by a control box (26), to which the limit switches (24) and (25) are also connected.
  • a photoelectric cell (27), placed in a notch of the angle fold stop (4) gives a signal whenever the notebook (1 being folded, reaches the stop (4). , too, connected to the control box (26) which receives, in addition by a conductor (28) a signal during the whole time when the press operator presses the "faster" button on the press control console to increase the speed of the press.
  • a timed relay amplifier (29) which is provided with a closing contact (30) and an opening contact (31) receives the pulses coming from the photocell (27), which delivers a impulse whenever a notebook, during folding, reaches the stop (4).
  • This relay is reset each time if the pulses follow one another with a period less than its setting time "t". It delivers, in this case, a permanent signal "notebook in abutment".
  • phase adjustment motor (23 ) turns in the "more advance” direction until the notebook is no longer in abutment.
  • the phase adjustment motor starts again in the "less advance” direction to bring the notebook just in abutment.
  • the device according to the invention further comprises two different chains for controlling the phase adjustment motor (23).
  • a control chain in the "more advance” direction comprising a relay (K 1) and said contact (30).
  • a control chain in the "less advance” direction comprising a relay (K 2) and said contact (31).
  • the contact (31) When the machine is in operation and the notebook does not come to a stop, the contact (31) is closed and the phase motor rotates in the direction in which it puts less advance. As we put less advance in the folding, the notebook will come more in abutment until the cell sees it and stops the phase motor by opening the contact (31).
  • the relay (K 1) phase motor control will go up and self-power through its contact (36), making more advance until the cell, no longer seeing the notebook, opens the contact (30) and closes the contact (31).
  • the stop arrival detector can be a photoelectric cell as described above, whether it be of the transmission type or of the reflection type, or even of the fluid pneumatic type or even a simple electrical contact or a piezoelectric or capacitive detector or any other kind of contact.
  • the mechanism of the square fold can be of the well-known type known as a "reel", in which the knife or blade describes a hypocycloid with two cusps.
  • phase shift can also be done by epicyclic gear or by harmonic differential reducer, instead of the system with axial displacement of chevron gears, without departing from the scope of the present invention.
  • Figures 4 and 5 show a method of slowing down the notebook produced by action on a suction force acting on the notebook, as described in patent EP-A-0 130 868 in the name of the applicant.
  • a blower (45) produces a vacuum in two boxes (46) located under the square fold table (6) and applying to the notebook (1) by a series of holes (47) drilled in the table.
  • the throttle valve (43) mounted in “by pass” and controlled by a motor (44) is under the control of the automation (26) according to an action by "more vacuum” and by "less vacuum".
  • the advance control is manual.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Description

L'invention se rapporte à un dispositif de réglage automatique du ralentissement du cahier avant pliage dans les plis d'équerre de plieuses de presse à imprimer.The invention relates to a device for automatically adjusting the deceleration of the notebook before folding in the square folds of printing press folders.

Le système de pliage à pli d'équerre est bien connu des constructeurs de plieuses pour presses à imprimer à bobines.The angle fold system is well known to manufacturers of folding presses for web printing presses.

Il consiste à réaliser un pli supplémentaire sur. , un cahier déjà coupé et plié et transporté vers le poste de pliage entre deux jeux de courroies. Un dispositif de ralentissement du cahier avant pliage est généralement prévu pour le freiner lorsqu'il arrive dans le poste pli d'équerre. On connaît notamment un dispositif de ralentissement comprenant des brosses de freinage du cahier un dispositif décrit dans la demande EP-A-0 130 868, compris dans l'art antérieur selon l'article 54(3) CBE et appartenant à la demanderesse, où une force de succion agit sur le cahier; ou un dispositif utilisant une avance de phase du couteau par rapport à l'arrivée en butée du cahier (voir les figures 1 et 2 des dessins annexés).It consists of making an additional fold on. , a notebook already cut and folded and transported to the folding station between two sets of belts. A device to slow down the notebook before folding is generally provided to brake it when it arrives at the square fold station. Particularly known is a slowing device comprising brushes for braking the notebook, a device described in application EP-A-0 130 868, included in the prior art according to article 54 (3) EPC and belonging to the applicant, where a suction force acts on the notebook; or a device using a phase advance of the knife relative to the abutment arrival of the notebook (see FIGS. 1 and 2 of the appended drawings).

Le cahier (1) à plier est amené au poste de pliage entre deux jeux de courroies de transport (2) et (3). Les courroies (2), placées sous le cahier, coopèrent avec les courroies (3) placées dessus pour entraîner le cahier (1) vers la butée (4). Cette butée (4) est entaillée au droit des courroies (2) et (3) pour leur livrer passage.The notebook (1) to be folded is brought to the folding station between two sets of conveyor belts (2) and (3). The belts (2), placed under the notebook, cooperate with the belts (3) placed above to drive the notebook (1) towards the stop (4). This stop (4) is notched in line with the belts (2) and (3) to allow them to pass.

Le cahier (1) par contre s'arrête sur la butée (4) qu'il ne peut franchir. Deux rouleaux de pliage (5) tournant en sens opposé, sont placés sous la table (6) qui est entaillée en son centre pour livrer passage au cahier (1) en cours de pliage.The notebook (1) on the other hand stops on the stop (4) which it cannot cross. Two folding rollers (5) rotating in opposite directions, are placed under the table (6) which is notched in its center to allow passage to the notebook (1) during folding.

Un couteau alternatif (7) monté oscillant au-dessus des rouleaux de pliage (5) et disposé de telle façon que son arête soit parallèle aux génératrices de contact des rouleaux (5) permet d'introduire le cahier entre les rouleaux (5).A reciprocating knife (7) mounted oscillating above the folding rollers (5) and arranged so that its edge is parallel to the contact generators of the rollers (5) makes it possible to introduce the notebook between the rollers (5).

Le couteau est articulé autour d'un axe (8), parallèle à celui des rouleaux (5) et reçoit un mouvement d'oscillation d'un mécanisme de bielle et manivelle (9) et (10). La rotation de ce système bielle et manivelle est assurée par la chaîne cinématique suivante couple conique (11 et 12), engrenages hélicoïdaux 113 et 14), (15 et 16).The knife is articulated around an axis (8), parallel to that of the rollers (5) and receives an oscillating movement from a connecting rod and crank mechanism (9) and (10). The rotation of this connecting rod and crank system is ensured by the following kinematic chain bevel gear (11 and 12), helical gears 113 and 14), (15 and 16).

L'engrenage (16) est entraîné en rotation par l'arbre (17), lié à la commande de la plieuse, de telle façon qu'à chaque cahier produit, l'arbre (17) fasse un tour.The gear (16) is rotated by the shaft (17), linked to the control of the folder, so that each book produced, the shaft (17) makes a turn.

On conçoit que si les couples d'engrenages (15 et 16) d'une part, (13 et 14) d'autre part et (11 et 12), enfin sont tous trois au rapport 1/1, le couteau (7) fera une oscillation pour chaque cahier délivré.It is understood that if the pairs of gears (15 and 16) on the one hand, (13 and 14) on the other hand and (11 and 12), finally are all three in the ratio 1/1, the knife (7) will make an oscillation for each notebook delivered.

Le blocage d'un maneton (9) sur son arbre est réalisé de telle sorte que le couteau (7) touche le cahier à plier (1), sensiblement au moment où celui-ci atteint la butée fixe (4).The locking of a crank pin (9) on its shaft is carried out so that the knife (7) touches the bending book (1), substantially at the moment when the latter reaches the fixed stop (4).

La position axiale des engrenages hélicoidaux (14) et (15), solidaires entre eux, est déterminée par un système vis écrou. La vis (18) est arrêté en translation au bâti, mais libre de tourner. Elle se visse dans l'écrou (19), arrêté en rotation mais libre axialement et qui donc, par l'intermédiaire d'un roulement à billes (20) déplace axialement le train d'engrenages hélicoïdaux (14) et (15).The axial position of the helical gears (14) and (15), integral with each other, is determined by a screw nut system. The screw (18) is stopped in translation to the frame, but free to rotate. It is screwed into the nut (19), stopped in rotation but free axially and which therefore, by means of a ball bearing (20) axially displaces the train of helical gears (14) and (15).

L'ensemble du système de déplacement axial du couple d'engrenages intermédiaires hélicoïdaux (14) et (15) permet de faire varier la phase du couteau de pliage (7) par rapport à l'instant d'arrivée du cahier (1) sur la butée (4).The entire axial displacement system of the pair of helical intermediate gears (14) and (15) makes it possible to vary the phase of the folding knife (7) relative to the time of arrival of the notebook (1) on the stop (4).

En effet un déplacement axial de l'engrenage (15), vers la droite par exemple, provoque une rotation de l'engrenage (14) et donc de l'engrenage (13). Mais le déplacement de l'engrenage (14) vers la droite provoque une rotation supplémentaire de l'engrenage (13) qui, étant dans le même sens que la première, s'additionne à celle-ci.Indeed, an axial displacement of the gear (15), to the right for example, causes a rotation of the gear (14) and therefore of the gear (13). But the movement of the gear (14) to the right causes an additional rotation of the gear (13) which, being in the same direction as the first, is added to the latter.

Ce système est bien connu des hommes de l'art qui l'utilisent de façon courante pour réaliser un réglage de phase, de course limitée.This system is well known to those skilled in the art who use it routinely to achieve phase adjustment, limited stroke.

On conçoit que le cahier (1), dans son déplacement vers la butée (4), pincé entre les jeux de courroies (2) et (3), est freiné lorsque le couteau (7) le touchant, l'oblige à venir frotter sur la table (6), puis les rouleaux (5).It is understood that the notebook (1), in its movement towards the stop (4), pinched between the sets of belts (2) and (3), is braked when the knife (7) touching it, forces it to come and rub on the table (6), then the rollers (5).

L'ajustement de la phase du couteau (7) par rapport à l'arrivée en butée du cahier (1) permet, précisément, de faire toucher le couteau (7) sur le cahier, à une distance de la butée (4) plus ou moins grande et ceci alors que la plieuse fonctionne.The adjustment of the phase of the knife (7) relative to the abutment of the notebook (1) makes it possible, precisely, to make the knife (7) touch the notebook, at a distance from the stop (4) more or less and this while the folder is running.

Si le couteau (7) touche le cahier (1) alors que celui-ci est très éloigné de la butée (4) (avance du couteau importante), le cahier n'atteint jamais la butée (4) car il est plié "au vol" par les rouleaux (5 - 5) avant de l'avoir atteinte.If the knife (7) touches the notebook (1) while the latter is very far from the stop (4) (significant knife advance), the notebook never reaches the stop (4) because it is folded "at theft "by the rollers (5 - 5) before reaching it.

Par contre, si l'avance du couteau est faible ou nulle, c'est-à-dire si le cahier (1) atteint la butée (4) de plein fouet et sans avoir été freiné par l'action du couteau (7) et de la table (6), le cahier se trouve déformé ou même déchiré dans son choc sur la butée (4) lorsque la plieuse fonctionne à grande vitesse.On the other hand, if the advance of the knife is low or zero, that is to say if the notebook (1) reaches the stop (4) with full force and without having been braked by the action of the knife (7) and from the table (6), the notebook is deformed or even torn in its impact on the stop (4) when the folder operates at high speed.

Le but de la présente invention est de rendre automatique le réglage des dispositifs de ralentissement du cahier avant pliage.The object of the present invention is to make the adjustment of the notebook slowing down devices automatic before folding.

On connaît déjà des systèmes de réglage de la phase des plis d'équerre. Ces systèmes comportent deux détecteurs de passage du cahier, l'un faisant plus d avance et l' autre en faisant moins. Ces dispositifs éliminent le pliage sur butée et sont, donc, de peu d'intérêt car le pliage réalisé "au vol" se fait de travers.Systems for adjusting the phase of the square folds are already known. These systems include two notebook passage detectors, one doing more ahead and the other doing less. These devices eliminate folding on the stop and are, therefore, of little interest since the folding carried out "on the fly" is done at an angle.

La présente invention vise un automatisme qui permet de régler l'avance du couteau pour que le cahier à plier atteingne "juste" la butée (4) quels que soient le grammage du cahier la pagination; ou les diverses forces de freinage que l'on peut lui appliquer brosses, dépression; et quelle que soit la vitesse de la machine.The present invention relates to an automation which makes it possible to regulate the advance of the knife so that the notebook to be folded reaches "just" the stop (4) whatever the grammage of the notebook is pagination; or the various braking forces that can be applied to it brushes, vacuum; and whatever the speed of the machine.

L'invention propose un dispositif de réglage automatique de l'intensité de l'effet de freinage exerce sur le cahier, qui se caractérise en ce qu'il comporte :

    • - un seul détecteur d'arrivée du cahier sur une butée du dispositif pli d'équerre, délivrant une impulsion toutes les fois que cette arrivée se produit;
    • - un relais temporisé relié audit détecteur dont il reçoit les impulsions, comportant un premier et un deuxième contacts dont l'un est ouvert quand l'autre est fermé, la fermeture dudit premier contact étant déclenchée lorsque deux impulsions successives en provenance du détecteur se succèdent avec une durée inférieure à une durée de temporisation prédéterminée tandis que lorsque deux impulsions se succèdent avec une durée supérieure à cette durée prédéterminée c'est la fermeture dudit deuxième contact qui est déclenchée;
    • - une première chaîne à relais pour actionner les moyens de commande de l'intensité de l'effet de freinage dans le sens d'un accroissement de cet effet, comportant :
    • - ledit premier contact qui commande cette première chaîne,
    • - un bouton-poussoir de validation de cette première chaîne,
    • - et en parallèle un bouton-poussoir que comporte le pupitre de commande de la presse pour augmenter la vitesse de celle-ci et un contact d'auto-maintien dudit relais de cette première chaîne;
    • - et une deuxième chaîne à relais pour actionner les moyens de commande de l'intensité de l'effet de freinage dans le sens d'une diminution de cet effet, Comportant ledit deuxième contact qui commande cette deuxième chaîne.
The invention provides a device for automatically adjusting the intensity of the braking effect exerted on the notebook, which is characterized in that it includes:
    • - a single detector of arrival of the notebook on a stop of the square bend device, delivering a pulse whenever this arrival occurs;
    • - a time relay connected to said detector from which it receives pulses, comprising a first and a second contact, one of which is open when the other is closed, the closing of said first contact being triggered when two successive pulses from the detector succeed one another with a duration less than a predetermined delay time while when two pulses succeed each other with a duration greater than this predetermined duration it is the closing of said second contact which is triggered;
    • a first relay chain for actuating the means for controlling the intensity of the braking effect in the direction of an increase in this effect, comprising:
    • - said first contact which controls this first chain,
    • - a validation button for this first channel,
    • - And in parallel a push button that includes the press control panel to increase the speed of the press and a self-maintaining contact of said relay of this first chain;
    • - And a second relay chain for actuating the means for controlling the intensity of the braking effect in the direction of a reduction in this effect, comprising said second contact which controls this second chain.

Lorsqu on appuie sur l'un des boutons-poussoirs de la première chaîne (bouton de validation ou pour augmenter la vitesse de la presse), le cahier est automatiquement mis "juste" en butée.When one of the push-buttons of the first chain is pressed (validation button or to increase the speed of the press), the notebook is automatically brought to the stop.

D'autres caractéristiques et avantages de la présente invention ressortiront de la description qui va suivre, faite en regard des dessins annexés sur lesquels :

  • - les figures 1 et 2 sont des vues respectivement en plan et en élévation d'un système connu d'avance de la phase des plis d'équerre muni d'un dispositif de réglage selon l'invention;
  • - la figure 3 est le schéma électrique d'un dispositif de réglage selon l'invention;
  • - les figures 4 et 5 sont des vues respectivement en élévation latérale et en plan d'un réglage de ralentissement exercé sur une dépression.
Other characteristics and advantages of the present invention will emerge from the description which follows, given with reference to the appended drawings in which:
  • - Figures 1 and 2 are views respectively in plan and in elevation of a known system in advance of the phase of the square folds provided with an adjustment device according to the invention;
  • - Figure 3 is the electrical diagram of an adjustment device according to the invention;
  • - Figures 4 and 5 are views respectively in side elevation and in plan of a slowdown adjustment exerted on a depression.

La vis (18) représentée sur la figure 1 est liée par des engrenages (21) et (22) à un moteur électrique (23). L'écrou (19) est en outre muni de contacts de fin de course (24) et 125) qui limitent la course de cet écrou et le déplacement axial des engrenages (14) et (15).The screw (18) shown in Figure 1 is connected by gears (21) and (22) to an electric motor (23). The nut (19) is furthermore provided with limit switch contacts (24) and 125) which limit the travel of this nut and the axial movement of the gears (14) and (15).

Le moteur (23) est commandé électriquemenet par un coffret de commande (26), auquel sont également reliés les contacts de fin de course (24) et (25).The motor (23) is electrically controlled by a control box (26), to which the limit switches (24) and (25) are also connected.

Une cellule photo-électrique (27), placée dans une encoche de la butée du pli d'équerre (4) donne un signal toutes les fois que le cahier (1 en cours de pliage, atteint la butée (4). Cette cellule est, elle aussi, reliée au coffret de commande (26) qui reçoit, en outre par un conducteur (28) un signal pendant tout le temps où le conducteur de presse appuie sur le bouton "+ vite" au pupitre de commande de la presse pour augmenter la vitesse de la presse.A photoelectric cell (27), placed in a notch of the angle fold stop (4) gives a signal whenever the notebook (1 being folded, reaches the stop (4). , too, connected to the control box (26) which receives, in addition by a conductor (28) a signal during the whole time when the press operator presses the "faster" button on the press control console to increase the speed of the press.

Le principe du dispositif de réglage automatique selon l'invention est le suivant (Fig. 3) :The principle of the automatic adjustment device according to the invention is as follows (Fig. 3):

Un amplificateur relais temporisé (29) qui est muni d'un contact à la fermeture (30) et d'un contact à l'ouverture (31) reçoit les impulsions en provenance de la cellule photo-électrique (27), qui délivre une impulsion toutes les fois qu'un cahier, en cours de pliage, atteint la butée (4).A timed relay amplifier (29) which is provided with a closing contact (30) and an opening contact (31) receives the pulses coming from the photocell (27), which delivers a impulse whenever a notebook, during folding, reaches the stop (4).

Ce relais est réarmé, chaque fois, si les impulsions se succèdent avec une période inférieure à sa durée de réglage "t". Il délivre, dans ce cas, un signal permanent "cahier en butée".This relay is reset each time if the pulses follow one another with a period less than its setting time "t". It delivers, in this case, a permanent signal "notebook in abutment".

Dans le cas contraire, il délivre un signal "cahier non en butée". Le signal "cahier en butée" provoque l'arrêt de la rotation du moteur (23) de réglage de phase dans le sens "moins d'avance". Le signal "cahier non en butée" provoque la rotation du moteur dans le sens "moins d'avance".Otherwise, it delivers a "notebook not in stop" signal. The signal "notebook in abutment" causes the rotation of the phase adjustment motor (23) to stop in the "less advance" direction. The "notebook not in stop" signal causes the motor to rotate in the "less advance" direction.

En outre, lorsque le conducteur de presse appuie sur le bouton "+ vite" au pupitre de commande de la presse, ou sur un bouton "mise en butée automatique" lors que le cahier est en butée, le moteur de réglage de phase (23) tourne dans le sens "plus d'avance" jusqu'à ce que le cahier ne soit plus en butée. Lorsque le cahier n'est plus en butée, le moteur de réglage de phase se remet en marche dans le sens "moins d'avance" pour ramener le cahier juste en butée.In addition, when the press operator presses the "+ fast" button on the press control console, or on an "automatic stop" button when the notebook is in stop, the phase adjustment motor (23 ) turns in the "more advance" direction until the notebook is no longer in abutment. When the notebook is no longer in abutment, the phase adjustment motor starts again in the "less advance" direction to bring the notebook just in abutment.

Le dispositif selon l'invention comprend, en outre, deux chaînes différentes de commande du moteur de réglage de phase (23).The device according to the invention further comprises two different chains for controlling the phase adjustment motor (23).

Une chaîne de commande dans le sens "plus d'avance" comprenant un relais (K 1) et ledit contact (30).A control chain in the "more advance" direction comprising a relay (K 1) and said contact (30).

Une chaîne de commande dans le sens "moins d'avance" comprenant un relais (K 2) et ledit contact (31).A control chain in the "less advance" direction comprising a relay (K 2) and said contact (31).

La chaîne à relais (K 1) de commande du moteur de phase (23), dans le sens "plus d'avance", comprend :

  • . Un contact (32) de verrouillage électrique du relais (K 2) ;
  • . Un contact de fin de course "plus d'avance" (33);
  • . Un inverseur "autommatique-manuel" (34) ;
  • . En parallèle, le bouton-poussoir "+ vite" (35) du pupitre de commande de la presse, et un contact (36) d'auto-maintien du relais (K 1);
  • . Le bouton "mise en butée automatique" (37) dudit pupitre ; et
  • . Le contact (30) de "cahier en butée".
  • La chaîne à relais (K 2 de commande du moteur de phase (23) dG: le sens "moins d'avance", comprend .
  • . Un contact (38) de verrouillage électrique du relais (K 1);
  • . Un contact de fin de course "moins d'avance" (39);
  • . Un inverseur "automatique-manuel" (40) ; et
  • . Le contact (31) de "cahier non en butée".
The relay chain (K 1) for controlling the phase motor (23), in the "more advance" direction, comprises:
  • . An electrical locking contact (32) of the relay (K 2);
  • . A "more advance" limit switch (33);
  • . An "automatic-manual" inverter (34);
  • . In parallel, the "faster" push button (35) on the press control console, and a contact (36) for self-maintaining the relay (K 1);
  • . The button "automatic stop" (37) of said console; and
  • . The contact (30) of "stop notebook".
  • The relay chain (K 2 for controlling the phase motor (23) dG: the "less advance" direction, includes.
  • . An electrical locking contact (38) of the relay (K 1);
  • . A "less advance" limit switch (39);
  • . An "automatic-manual" inverter (40); and
  • . The contact (31) of "notebook not in abutment".

En outre, si l'on désire obtenir un fonctionnement en mode manuel, il suffit d'inverser les contacts (34) et (40) et de commander le moteur de phase par des boutons-poussoirs (41A), "moins sur butée" et (41 B) "plus sur butée". Un voyant (42) permet, dans ce cas, à l'opérateur, d'apprécier le fait que le cahier vient ou ne vient pas en butée.In addition, if one wishes to obtain operation in manual mode, it suffices to reverse the contacts (34) and (40) and to control the phase motor by push buttons (41A), "less on stop". and (41 B) "more on stop". An indicator (42) allows, in this case, the operator, to appreciate the fact that the notebook comes or does not come into abutment.

Le fonctionnement peut être résumé comme suit:The operation can be summarized as follows:

Lorsque la machine est en fonctionnement et que le cahier ne vient pas en butée, le contact (31) est fermé et le moteur de phase tourne dans le sens où il met moins d'avance. Comme l'on met moins d'avance au pliage, le cahier va venir plus en butée jusqu'à ce que la cellule le voit et arrête le moteur de phase en ouvrant le contact (31).When the machine is in operation and the notebook does not come to a stop, the contact (31) is closed and the phase motor rotates in the direction in which it puts less advance. As we put less advance in the folding, the notebook will come more in abutment until the cell sees it and stops the phase motor by opening the contact (31).

Si en cours de marche de la machine, l'opérateur agit sur le bouton "+ vite" (35), alors que le cahier est en butée et que le moteur n'est pas en fin de course, le relais (K 1) de commande du moteur de phase va monter et s'auto- alimenter par son contact (36), faisant plus d'avance jusqu'à ce que la cellule, ne voyant plus le cahier, ouvre le contact (30) et ferme le contact (31).If during operation of the machine, the operator acts on the "+ fast" button (35), while the notebook is in abutment and the motor is not at the end of its travel, the relay (K 1) phase motor control will go up and self-power through its contact (36), making more advance until the cell, no longer seeing the notebook, opens the contact (30) and closes the contact (31).

On voit que ce système règle toujours le cahier "juste" en butée.We see that this system always sets the "right" notebook in abutment.

Des variantes peuvent être apportées à l'invention ci-dessus dont la description n'a été donnée qu'à titre purement indicatif, sans pour autant, sortir du cadre de l'invention.Variants can be made to the above invention, the description of which has been given for information only, without departing from the scope of the invention.

C'est ainsi que le détecteur d'arrivée en butée peut être, une cellule photo-électrique comme décrit ci-dessus, qu'elle soit du type à transmission ou du type à réflexion, ou encore du genre pneumatique fluidique ou même un simple contact électrique ou encore un détecteur piezo- électrique ou capacitif ou tout autre genre de contact.Thus the stop arrival detector can be a photoelectric cell as described above, whether it be of the transmission type or of the reflection type, or even of the fluid pneumatic type or even a simple electrical contact or a piezoelectric or capacitive detector or any other kind of contact.

De même, le mécanisme du pli d'équerre peut être du type bien connu dit "à moulinet", dans lequel le couteau ou lame décrit une hypocycloïde à deux rebroussements.Likewise, the mechanism of the square fold can be of the well-known type known as a "reel", in which the knife or blade describes a hypocycloid with two cusps.

Enfin, la réalisation du déphasage peut se faire également par train epicycloidal ou par réducteur différentiel harmonique, au lieu du système à déplacement axial d'engrenages en chevrons, sans pour autant sortir du cadre de la présente invention.Finally, the phase shift can also be done by epicyclic gear or by harmonic differential reducer, instead of the system with axial displacement of chevron gears, without departing from the scope of the present invention.

Les figures 4 et 5 représentent un mode de ralentissement du cahier réalisé par action sur une force de succion agissant sur le cahier, comme cela est décrit dans le brevet EP-A-0 130 868 au nom la demanderesse.Figures 4 and 5 show a method of slowing down the notebook produced by action on a suction force acting on the notebook, as described in patent EP-A-0 130 868 in the name of the applicant.

Une soufflante (45) réalise une dépression dans deux boîtes (46) situées sous la table de pli d'équerre (6) et s'appliquant au cahier (1) par une série de trous (47) percés dans la table.A blower (45) produces a vacuum in two boxes (46) located under the square fold table (6) and applying to the notebook (1) by a series of holes (47) drilled in the table.

Le papillon (43) monté en "by pass" et commandé par un moteur (44) est sous le contrôle de l'automatisme (26) suivant une action par "plus de dépression" et par "moins de dépression".The throttle valve (43) mounted in "by pass" and controlled by a motor (44) is under the control of the automation (26) according to an action by "more vacuum" and by "less vacuum".

Dans ce cas, la commande de l'avance est manuelle.In this case, the advance control is manual.

On peut également asservir des brosses de freinage du cahier, brosses qui sont habituellement montées près de la butée, au contact du cahier, à la commande de l'automatisme (26).It is also possible to control the notebook's braking brushes, brushes which are usually mounted near the stop, in contact with the notebook, for controlling the automation (26).

L'action se fait par "brosses plus serrées" et par "brosses moins serrées".The action is done by "tighter brushes" and by "less tight brushes".

Claims (8)

1. Device for automatic control of the intensity of braking exercised on a booklet to decelerate it before folding in a device for making rectangular folds in a printing press folder, this device for making rectangular folds including means of braking equipped with means of controlling the intensity of the braking effect, this device for automatic control being characterized in that it comprises :
- a single detector (27) of the arrival of a booklet (1) on a stopping place (4) of the device for making rectangular folds, delivering an impulse every time this arrival produces it;
- a time delay relay (29) connected to the said detector (27) from which it receives the impulses, comprising a first and a second contact (30, 31) one of which is open when the other is closed, the closure of the said first contact (30) being triggered when two successive impulses coming from the detector (27) succeed each other within an interval less than a predetermined time delay, whilst when two impulses succeed each other with an interval longer than this predetermined interval it is the closure of the said second contact (31) which is triggered.
- a first chain with relays (K1) to activate the means of control of the intensity of the braking effect (18, 43) in the sense of increasing this effect, comprising :
the said first contact (30) which commands this first chain,
a push button (37) to validate this first chain,
and, in parallel, a push button (35) which governs the control desk for the press to control its speed and an auto-hold contact (36) of the said relays (K1) of this first chain;
- and a second chain with relays (K2) to activate the means of control of the intensity of the braking effect in the sense of decreasing this effect, comprising the said second contact (31) which commands this second chain.
2. Device according to Claim 1, characterized in that the first chain also comprises a reversing switch (34) and a push button (41A), this reversing switch allowing substitution of this push button for a sub-chain comprising the said first contact (30), the said push buttons used for validation (37) and to increase the speed of the press (35), and the said auto-hold contact (36), and in that the second chain also comprises a reversing switch (40) and a push button (41 B), this reversing switch allowing substitution of this push button for the said second contact.
3. Device according to any one of Claims 1 to 2, characterized in that it comprises an indicator (42) operated by the closure of the said second contact (31).
4. Device according to any one of Claims 1 to 3, characterized in that each of the said chains comprises an interconnecting contact (32, 38) of the relays in the other chain (K1, K2).
5. Device according to any one of Claims 1 to 4, characterized in that each of the said chains comprises a limit switch (33, 39) for the device controlling the intensity of the braking effect, in the sense of increasing the effect of braking by the first chain and in the sense of decreasing it by the second chain.
6. Device according to any one of Claims 1 to 5, characterized in that the said means of braking consist of a device for advancing the phase of the folding knife (7) with respect to the arrival in the stop of a booklet to be folded (1), and in that the said means of controlling the intensity of the braking effect comprise an electric motor (23).
7. Device according to any one of Claims 1 to 5, characterized in that the said means of braking comprise the action of a force of suction acting on the booklet to be folded, and in that the said means of controlling the intensity of the braking effect comprise a butterfly valve (43) controlled by a motor (44).
8. Device according to any one of Claims 1 to 5, characterized in that the said means of braking comprise brushes intended to be squeezed against the booklet.
EP85400879A 1984-05-07 1985-05-06 Automatic device for the retarding of a booklet before being rectangularly folded in a folder of a printing machine Expired EP0161988B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8407024A FR2563773B1 (en) 1984-05-07 1984-05-07 DEVICE FOR AUTOMATICALLY ADJUSTING THE SLOWDOWN OF THE NOTEBOOK BEFORE FOLDING IN THE FOLDERS OF THE PRESS FOLDER SQUARES
FR8407024 1984-05-07

Publications (2)

Publication Number Publication Date
EP0161988A1 EP0161988A1 (en) 1985-11-21
EP0161988B1 true EP0161988B1 (en) 1988-08-10

Family

ID=9303733

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400879A Expired EP0161988B1 (en) 1984-05-07 1985-05-06 Automatic device for the retarding of a booklet before being rectangularly folded in a folder of a printing machine

Country Status (5)

Country Link
US (1) US4573671A (en)
EP (1) EP0161988B1 (en)
JP (1) JPS60244759A (en)
DE (1) DE3564247D1 (en)
FR (1) FR2563773B1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0423886Y2 (en) * 1986-01-22 1992-06-04
DE3903381A1 (en) * 1989-02-04 1990-08-09 Frankenthal Ag Albert DEVICE FOR STOPPING FOLDED PRODUCTS
US5120291A (en) * 1989-04-11 1992-06-09 Toshiba Kikai Kabushiki Kaisha Chopper folding machine with bad fold detecting
US5092832A (en) * 1990-06-11 1992-03-03 Roll Systems, Inc. Method and apparatus for creasing continuous web
JP2801744B2 (en) * 1990-06-19 1998-09-21 株式会社小森コーポレーション Automatic chopper blade operation timing control method and apparatus
US5358464A (en) * 1992-12-31 1994-10-25 R. Funk & Co., Inc. Conveyor system and multi-speed folder
DE4315095A1 (en) * 1993-05-06 1994-11-10 Stahl Gmbh & Co Maschf Method for operating a folding machine
GB2281069B (en) * 1993-08-17 1997-04-23 Rockwell Pmc Limited Folding apparatus
DE19504769A1 (en) * 1995-02-14 1996-08-22 Roland Man Druckmasch High speed paper-folding station for printed material e.g. books
US5749823A (en) * 1995-03-28 1998-05-12 Heidelberger Druckmaschinen Ag Signature control in a high speed printing press
US5986755A (en) * 1997-03-14 1999-11-16 Eastman Chemical Company Elastic radiation scatter-detecting safety device analyzer apparatus provided with safety device and method for controlling a laser excitation source
US6440049B1 (en) 1998-02-02 2002-08-27 Heidelberger Druckmaschinen Ag Folder with early warning jam detection system and related method
US6394445B1 (en) 1998-12-30 2002-05-28 Quad/Tech, Inc. Apparatus for slowing down and guiding a signature and method for doing the same
DE50003905D1 (en) * 2000-07-28 2003-11-06 Oppenweiler Binder Gmbh Maschb Device for folding a sheet using a folding sword
JP4735937B2 (en) * 2004-11-17 2011-07-27 アイシン精機株式会社 Contact detection device
DE102009003235B3 (en) * 2009-03-27 2010-07-08 Koenig & Bauer Aktiengesellschaft Method for operating longitudinal folding machine for folding printing product in web-fed rotary printing press, involves correcting declination of length of product by braking element arranged on both sides of folding gap
FR2954757B1 (en) * 2009-12-29 2012-04-27 Goss Int Montataire Sa FOLDING DEVICE COMPRISING ONE OR MORE BELTS CAPABLE OF PERFORMING A CADENCE MOVEMENT BETWEEN TWO POSITIONS
CN103588015B (en) * 2013-11-27 2016-04-20 湖南汉升机器制造有限公司 The additional vertical folding sequential adjusting mechanism of high speed folding machine

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458544A (en) * 1946-05-20 1949-01-11 Zephyr Laundry Machinery Compa Timer for folding apparatus
US2516454A (en) * 1947-12-26 1950-07-25 American Laundry Mach Co Timing device for folding machines
US2643879A (en) * 1947-12-26 1953-06-30 American Laundry Mach Co Control system for folding machines
CH325105A (en) * 1954-02-11 1957-10-31 Maschf Augsburg Nuernberg Ag Folder
US2871010A (en) * 1954-12-06 1959-01-27 Glen V Likens Measurement controls or timers for folding machines
USRE24980E (en) * 1957-05-06 1961-05-02 B laned
US2941797A (en) * 1957-10-31 1960-06-21 American Machine & Metals Laundry folding machines
DE1152707B (en) * 1961-12-27 1963-08-14 Mabeg Maschb G M B H Nachf Hen Effective arc deceleration and alignment device between the feeder table and the front lays
US3212771A (en) * 1963-11-04 1965-10-19 Ametek Inc Laundry folding machine with low speed and high speed fold timer motors
DE1282029B (en) * 1965-05-05 1968-11-07 Vickers Ltd Printing press for sheets of paper with electrical control system
US3449592A (en) * 1968-02-27 1969-06-10 Sjostrom Automations Inc Timer control for textile folding machines or the like
US3698705A (en) * 1971-03-05 1972-10-17 Funk & Co Inc Apparatus for folding flexible sheets
US3692303A (en) * 1971-07-23 1972-09-19 Mecca Bros Inc Sensing means for folder
GB1356519A (en) * 1972-08-24 1974-06-12 Polygraph Leipzig Adjustable drive mechanism for drivin' the folding blade of a sheet folding device
DE3239799C2 (en) * 1982-10-27 1986-01-30 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Knife folder

Also Published As

Publication number Publication date
DE3564247D1 (en) 1988-09-15
FR2563773B1 (en) 1986-12-05
EP0161988A1 (en) 1985-11-21
US4573671A (en) 1986-03-04
FR2563773A1 (en) 1985-11-08
JPS60244759A (en) 1985-12-04

Similar Documents

Publication Publication Date Title
EP0161988B1 (en) Automatic device for the retarding of a booklet before being rectangularly folded in a folder of a printing machine
CH621530A5 (en)
FR2489612A1 (en) DRAWING APPARATUS COMPRISING A MANEUVER MEMBER AND A DRIVING DEVICE FOR THE CLAMPING JAWS
EP2829470B1 (en) Device for rotating an aircraft wheel
EP0251833A1 (en) Device for temporary storing flat articles
EP0568492B1 (en) Automatic braking device for motorised electronic operation of a door, shutter, blind or similar
CH414449A (en) Apparatus for strapping packages using strapping
FR2590830A1 (en) CUTTING DEVICE FOR FLAT MATERIALS SUCH AS FABRICS, SHEETS AND SIMILAR OBJECTS
FR2595675A1 (en) METHOD AND APPARATUS FOR DISPENSING AND WINDING PACKAGING PAPER
FR2643589A1 (en) MACHINE FOR CUTTING AND BENDING A PRINTED PAPER STRIP
FR2611549A3 (en) Self-powered motorised shears
EP2161730A1 (en) Device for controlling the opening and/or closing of the contacts in an electrical device
EP2605256A1 (en) Operating device of the motor-drive of the contact closing device reset device in an electric protection apparatus and apparatus comprising same
EP1993115B1 (en) Device for controlling the connection and disconnection of two parts and electrical appliance comprising such a device
FR2554898A1 (en) Releasable device for driving an elongate member, and its application to actuating a lock, and electronically actuated lock fitted with such a device
EP0323364A1 (en) Work head for a tree-processing machine
EP0623543B1 (en) Folding device for documents with a pivotable guide
EP0384801B1 (en) Apparatus for rotatively cutting webs of cellulose wadding and the like, and its use
EP1251010B1 (en) Office machine with printer and scanner and multi-functional motor
EP0096853A1 (en) Mechanical device for delivering sheets of paper
FR2741651A1 (en) Motorised window shutter synchronising control with automatic stops
EP1597180B1 (en) Mechanical selector
FR2548805A1 (en) Motor driven cutter
EP1117111B1 (en) Actuating mechanism of a contact element of an electrical switch with an articulated parallelogram
CH423601A (en) Device for packaging objects in cylindrical or prismatic form

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19860109

17Q First examination report despatched

Effective date: 19861121

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO ROMA S.P.A.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REF Corresponds to:

Ref document number: 3564247

Country of ref document: DE

Date of ref document: 19880915

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19910429

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910524

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19910527

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19910530

Year of fee payment: 7

ITTA It: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19920506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920507

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19920506

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19930129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19930202

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 85400879.4

Effective date: 19921204