EP0937670B1 - Device for charging a processing line with printed products - Google Patents
Device for charging a processing line with printed products Download PDFInfo
- Publication number
- EP0937670B1 EP0937670B1 EP98810134A EP98810134A EP0937670B1 EP 0937670 B1 EP0937670 B1 EP 0937670B1 EP 98810134 A EP98810134 A EP 98810134A EP 98810134 A EP98810134 A EP 98810134A EP 0937670 B1 EP0937670 B1 EP 0937670B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gripping
- axis
- conveyor drum
- rotation
- double roller
- 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
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/12—Revolving grippers, e.g. mounted on arms, frames or cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/08—Feeding articles separated from piles; Feeding articles to machines by grippers, e.g. suction grippers
- B65H5/14—Details of grippers; Actuating-mechanisms therefor
Definitions
- the invention relates to a device for loading a processing line with printed products, consisting of a rotating, individually pulling the stacked printed products from a magazine, the conveying drum, which is in an approximately circular orbit to which the printed product partially lifted from the stack by means of a separating device is to be detected Edge can be moved, has a gripping device which can be controlled by an at least one movable gripping arm and is controlled by means of a cam mechanism connected to a closed guideway in a vertical plane to the axis of rotation and fixedly arranged around it in an open or a closed position and takes over the printed product from the separating device.
- CH-A-408 065 discloses a so-called depositing machine of the type described at the beginning for a saddle stitcher, in which the conveyor drum has two auxiliary gripper drums which open the printed products are connected downstream.
- the conveyor drum is formed by two drum disks spaced apart from one another on the axis of rotation, between which a fixed control cam disk is arranged.
- a gripper lever mounted on a shaft arranged eccentrically to the axis of rotation of the conveyor drum, between the drum disks, has a gripper which cooperates with the circumference of the drum disk at the outer end, while a feeler roller is mounted on the inner end of the gripper lever and is connected under the action of a gripper lever Tension spring rests on the control cam.
- a suction cup On the front edge of the printed product stack, a suction cup is pivotally mounted parallel to the axis of rotation of the conveyor drum and is connected to a suction pump.
- the suction cup is swiveled up to the bottom sheet of the stack once by each additional rotation of the conveyor drum and swiveled back after gripping the back fold edge so that the latter can be gripped by the gripper and pulled out from under the stack.
- a gripping arm of the conveyor drum interacting with a drum disk is actuated via a pivotable toothed segment which is connected to a closed guide track arranged around the axis of rotation of the conveying drum, the toothed segment engaging in a pinion on which the angled gripper arm is attached.
- the pitch circle radius of the toothed segment is several times larger than the pitch circle radius of the pinion, so that there is a large reduction, which results in a large opening angle of the gripper, such that in the open position it is set back from the circumference of the drum on which the printed products are in contact.
- a gripper drum is arranged between two lateral drum disks of the conveyor drum.
- a swivel shaft is rotatably mounted parallel to the axis of rotation of the conveyor drum, with which two laterally spaced gripper levers are firmly connected.
- a pinion sits on the swivel shaft between the gripper levers by means of a wedge.
- an anvil lever which cooperates with the gripper levers and which forms a gripping device with the latter, is pivotably mounted on the pivot shaft.
- the gripper levers When the anvil lever runs past the folded printed sheet edge pulled down by a suction device, the gripper levers are pivoted against the pivoted out anvil lever, the printed sheet edge is gripped and the printed sheet is pulled out from under the stack.
- the gripper levers are actuated via the swivel shaft and the pinion by a toothed segment that sits on a control shaft in a rotationally fixed manner.
- the latter is rotatably mounted in the gripper drum and the two drum disks and has a cam lever which engages with a cam roller in a control groove of a fixed cam.
- the object of the present invention is to create a device according to the type mentioned at the outset which is less susceptible to wear and has a lower noise emission.
- this object is achieved in that the movable gripping arm of the gripping device is connected to a double roller lever which is pivotally mounted on the conveyor drum about an axis parallel to its axis of rotation and which rotates in two closed guide tracks which are arranged in a fixed manner in at least one vertical plane around the axis of rotation of the conveyor drum.
- the solution according to the invention is possible both with a gripping device formed by drum circumference and a movable gripping arm and also with a gripping device formed by two gripping arms.
- FIG. 1 and 2 show the area of a device 1 (also called feeder) which is essential to the invention for supplying a processing line for printed products.
- This device 1 consists of a conveyor drum 2 rotating about a horizontal axis of rotation 3, above which is assigned a magazine 4 stacking the multi-leaf, folded printed products.
- the printed products could also be fed to the conveyor drum in a standing, stacked arrangement.
- the stacking table 5 of the magazine 4 carrying the printed products forms a bottom opening 7 with the pivotally coupled retractable retainer 6, through which the printed products are cyclically captured in the folding area by a separating device 9 having a plurality of suction cups 8 and are initially partially lifted down from the stack.
- the individual suction cups 8 are connected to a pivotably mounted hollow shaft 10, which in turn is connected to a vacuum source (not visible). This mode of operation is known and therefore requires no explanation. So that the printed products can be partially lifted off the stack by the separating device 9, the retainer 6 supporting the stack in the fold area is withdrawn in a short sequence, as mentioned above.
- the printed product lifted off in the folding area is then passed under by an open gripping device 11 fastened to the conveying drum 2 rotating in the R direction, and released at the moment when a movable gripping arm 12 hits the folding area of the printed product or the latter presses onto a gripping anvil 13 cooperating with the gripping device 11 (shown without printed product in FIG. 2 below the retainer 6).
- the opening or closing of the gripping device 11 is carried out by a stationary or resp. Fixed, on two vertical planes distributed guideways 18, 19 around the axis of rotation 3 rotating double roller lever 20, which is rotatably connected to the shaft 15 by a recognizable wedge and on which the angled part of the gripper arm 12 is screwed adjustably.
- the other, the gripping device 11 associated gripping arm part is attached to the shaft 15 and locked by a clamping connection 21 thereon.
- the lever-like gripper anvil 13 which is yoke-like in cross section, is supported on the shaft 15, which in turn is received by two spaced deep groove ball bearings 22 in a bore 23 in the circumferential region of the feed wheel 16.
- the latter which can be formed on the circumference with more than just one gripping device 11, is provided with a recess 24 in the effective area of the gripping device 11 according to FIG. 2.
- the bottom of the recess 24 has a recess 25, in which a compression spring 26 is arranged, which pushes the gripping anvil 13 against a stop 27 on the feed wheel 16, provided that the gripping device 11 does not hold a printed product.
- the varying thickness of the printed products is absorbed by the compression spring 26, so that the gripper arm 12 assumes a more or less constant position in the closed position.
- the double roller lever 20 has at the lever ends of each protruding bearing pin 28, 29 rotatably fastened rollers 30, 31 respectively. Deep groove ball bearings, each of which is guided in a guideway 18, 19.
- the closed or endless guideways 18, 19 are located in a stationary guide plate 32, in which the drive shaft 33 of the conveyor drum 2 is mounted on one side.
- a wedge 34 is provided as the drive connection between drive shaft 33 and conveyor drum 2.
- the side areas of the conveyor drum 2 are formed by support disks 35, which serve to support the printed products projecting laterally from the gripping device 11.
- 1 further shows that in the embodiment shown the guideways 18, 19 and the roller 30, 31 of the double roller lever 20 assigned to them are arranged in mutually offset vertical planes to the axis of rotation 3 of the conveyor drum 2.
- the distance between the roller axes and the axis 14 of the shaft 15 is not necessarily the same in the present embodiment and the double lever 36 has an obtuse angled shape (see FIG. 2), which in the angular range connects to or supports the shaft 15 allowed.
- the guide tracks 18, 19 acting on the double roller lever 20 are divided into several sections intended to trigger the functions of the gripping device 11.
- the individual functional sections of the guide tracks 18, 19 acting together with one another on the double roller lever 20 or the gripping device 11 or the gripping arm 12 are designed differently with respect to their length.
- the illustrated exemplary embodiment shows in FIG. 2 a stack of printed products standing on the stacking table 5.
- a gripping device 11 be it to form a stream of flakes or in a separation formation.
- Using a printed product opening device downstream of the device according to the invention would also make it possible to use it for a saddle stitcher.
- the gripping device 11 In the illustrated position of the gripping device 11 according to FIG. 2, the latter has taken over a printed product which was lifted from the stack by the separating device 9 in the fold area immediately beforehand, the retainer 6 having been swung out of the detection area of the separating device 9 at that time. As shown, the gripping device 11 has just closed, the vacuum is now switched off at the separating device, and then embarks on the transport path of the printed product, which is pulled out from the stack at a relatively high speed.
- the clamping or clamping force in the gripping device 11 is achieved by the constant closed position of the gripping arm 12 and the gripping anvil 13 counteracting by the compression spring 26.
- the gripping device 11 opens again approximately on the opposite side of the axis of rotation 3 and releases the printed product from the conveying drum 2.
- the stationary guideways 18, 19 keep the gripping device 11 closed from the detection point until the release of the printed product by a concentric course of its two path sections 37 and 38 to the axis of rotation 3.
- the release of the printed products by opening the gripping device 11 takes place immediately afterwards, in that the guide tracks 18, 19 intersect after the track sections 37, 38, so that the outer guide track 18 in the area of the track sections 37, 38 moves inward, that is, closer to the axis of rotation 3 and the inner guide track 19 in the area of the track sections 37, 38 changes the position to the outside; this, of course, seamlessly. steadily.
- the course of the guide tracks 18, 19 changes again by a crossing course of the guide tracks 18, 19 before the closing movement of the gripping device 11, immediately before the start of the concentric track sections 37, 38.
- This sequence of functions is based on the direction of rotation R of the conveyor drum 2 .
- the course of the guideways 18, 19 for the open position of the gripping device 11 by crossing the guideways 18, 19 on the opposite side of the axis of rotation 3 is preferably selected such that the open gripping arm 12 swings back behind the circumference of the conveyor drum 2, as shown in FIG. 2 ,
Description
Die Erfindung betrifft eine Vorrichtung zur Beschickung einer Verarbeitungsstrecke mit Druckprodukten, bestehend aus einer rotierenden, die gestapelten Druckprodukte von einem Magazin einzeln abziehenden, Fördertrommel, die auf einer etwa kreisförmigen Umlaufbahn, an die das mittels Trennvorrichtung teilweise von dem Stapel abgehobene Druckprodukt mit einem zu erfassenden Rand verlegbar ist, eine durch wenigstens einen bewegbaren Greifarm gebildete, mittels eines mit einer in einer Vertikalebene zur Drehachse, ortsfest um diese angeordneten geschlossenen Führungsbahn verbundenen Kurvengetriebes in eine Offen- oder eine Schliessstellung steuerbare, das Druckprodukt von der Trennvorrichtung übernehmende Greifvorrichtung aufweist.The invention relates to a device for loading a processing line with printed products, consisting of a rotating, individually pulling the stacked printed products from a magazine, the conveying drum, which is in an approximately circular orbit to which the printed product partially lifted from the stack by means of a separating device is to be detected Edge can be moved, has a gripping device which can be controlled by an at least one movable gripping arm and is controlled by means of a cam mechanism connected to a closed guideway in a vertical plane to the axis of rotation and fixedly arranged around it in an open or a closed position and takes over the printed product from the separating device.
Die CH - A - 408 065 offenbart eine sog. Ablegemaschine nach der eingangs beschriebenen Art für einen Sammelhefter, bei der der Fördertrommel zwei die Druckprodukte öffnende Hilfsgreifertrommeln nachgeschaltet sind. Die Fördertrommel ist durch zwei an der Drehachse voneinander distanzierte Trommelscheiben gebildet, zwischen denen eine feststehende Steuerkurvenscheibe angeordnet ist. Ein auf einer exzentrisch zur Drehachse der Fördertrommel angeordneten Welle, zwischen den Trommelscheiben gelagerter Greiferhebel weist am äusseren Ende einen mit dem Umfang der Trommelscheibe zusammenwirkenden Greifer auf, während an dem inneren Ende des Greiferhebels eine Tastrolle gelagert ist, die unter Wirkung einer mit dem Greiferhebel verbundenen Zugfeder an der Steuerkurvenscheibe anliegt. An der Vorderkante des Druckproduktestapels ist parallel zur Drehachse der Fördertrommel ein Sauger schwenkbar gelagert, der an eine Saugpumpe angeschlossen ist. Der Sauger wird durch eine zusätzliche, mit der Fördertrommel verbundene Steuerscheibe bei jedem Umlauf der Fördertrommel einmal zum untersten Bogen des Stapels hochgeschwenkt und nach Erfassen des Rückenfalzrandes zurückgeschwenkt, sodass letzterer vom Greifer erfasst und unter dem Stapel ausgezogen werden kann.CH-A-408 065 discloses a so-called depositing machine of the type described at the beginning for a saddle stitcher, in which the conveyor drum has two auxiliary gripper drums which open the printed products are connected downstream. The conveyor drum is formed by two drum disks spaced apart from one another on the axis of rotation, between which a fixed control cam disk is arranged. A gripper lever mounted on a shaft arranged eccentrically to the axis of rotation of the conveyor drum, between the drum disks, has a gripper which cooperates with the circumference of the drum disk at the outer end, while a feeler roller is mounted on the inner end of the gripper lever and is connected under the action of a gripper lever Tension spring rests on the control cam. On the front edge of the printed product stack, a suction cup is pivotally mounted parallel to the axis of rotation of the conveyor drum and is connected to a suction pump. The suction cup is swiveled up to the bottom sheet of the stack once by each additional rotation of the conveyor drum and swiveled back after gripping the back fold edge so that the latter can be gripped by the gripper and pulled out from under the stack.
Bei einer anderen bekannten Ausführung eines Anlegers zur Vereinzelung von gestapelten Druckprodukten, wird ein mit einer Trommelscheibe zusammenwirkender Greifarm der Fördertrommel über ein mit einer um die Drehachse der Fördertrommel angeordneten, geschlossenen Führungsbahn antriebsverbundenes schwenkbares Zahnsegment betätigt, wobei das Zahnsegment in ein Ritzel eingreift, an dem der abgewinkelte Greifarm befestigt ist. Der Teilkreisradius des Zahnsegmentes ist um ein Mehrfaches grösser als der Teilkreisradius des Ritzels, sodass eine grosse Untersetzung entsteht, die einen grossen Oeffnungswinkel des Greifers ergibt, derart, dass dieser in der Offenstellung gegenüber dem Trommelscheibenumfang, an dem die Druckprodukte anliegen, zurücksteht.In another known embodiment of a feeder for separating stacked printed products, a gripping arm of the conveyor drum interacting with a drum disk is actuated via a pivotable toothed segment which is connected to a closed guide track arranged around the axis of rotation of the conveying drum, the toothed segment engaging in a pinion on which the angled gripper arm is attached. The pitch circle radius of the toothed segment is several times larger than the pitch circle radius of the pinion, so that there is a large reduction, which results in a large opening angle of the gripper, such that in the open position it is set back from the circumference of the drum on which the printed products are in contact.
Die vom Greifarm aufzubringende Schliesskraft und die relativ grossen Beschleunigungs- und Verzögerungsmomente durch die Schliess- und Oeffnungsbewegungen des Greiferarms, die sich bei einer Ausführung mit Zahnsegment und Ritzel besonders bemerkbar machen, entstehen starke Verschleiss- und Lärmerscheinungen, die sich insbesondere im Bereich der zur Bewegung des Greiferarms verwendeten Elemente auswirken. Dieser Umstand verursacht zu seiner Behebung zusätzlichen Aufwand, der sich durch Unterbrüche und Kosten zeigt.The closing force to be exerted by the gripper arm and the relatively large acceleration and deceleration moments due to the closing and opening movements of the gripper arm, which are particularly noticeable in a version with a toothed segment and pinion, result in severe wear and noise phenomena, particularly in the area of the movement the elements used on the gripper arm. This fact causes additional effort to remedy it, which is shown by interruptions and costs.
Bei einem ähnlichen Anleger für Druckbogen nach der CH - A-641 112 ist zwischen zwei seitlichen Trommelscheiben der Fördertrommel eine Greifertrommel angeordnet. An dieser ist parallel zur Drehachse der Fördertrommel eine Schwenkwelle drehbar gelagert, mit der zwei seitlich voneinander beabstandete Greiferhebel fest verbunden sind. Zwischen den Greiferhebeln sitzt an der Schwenkwelle mittels Keil ein Ritzel. Weiter lagert an der Schwenkwelle schwenkbar jeweils ein mit den Greiferhebeln zusammenwirkender Ambosshebel, der mit letzteren eine Greifvorrichtung bildet. Beim Vorbeilaufen des Ambosshebels an dem durch eine Saugvorrichtung heruntergezogenen gefalzten Druckbogenrand werden die Greiferhebel gegen den herausgeschwenkten Ambosshebel geschwenkt, der Druckbogenrand erfasst und der Druckbogen unter dem Stapel hervorgezogen. Dabei werden die Greiferhebel über die Schwenkwelle und das Ritzel von einem Zahnsegment betätigt, das drehfest auf einer Steuerwelle sitzt. Letztere ist drehbar in der Greifertrommel und den beiden Trommelscheiben gelagert und besitzt einen Nockenhebel, der mit einer Nockenrolle in eine Steuernut einer ortsfesten Kurvenscheibe eingreift.In a similar feeder for printed sheets according to CH - A-641 112, a gripper drum is arranged between two lateral drum disks of the conveyor drum. On this, a swivel shaft is rotatably mounted parallel to the axis of rotation of the conveyor drum, with which two laterally spaced gripper levers are firmly connected. A pinion sits on the swivel shaft between the gripper levers by means of a wedge. Furthermore, an anvil lever, which cooperates with the gripper levers and which forms a gripping device with the latter, is pivotably mounted on the pivot shaft. When the anvil lever runs past the folded printed sheet edge pulled down by a suction device, the gripper levers are pivoted against the pivoted out anvil lever, the printed sheet edge is gripped and the printed sheet is pulled out from under the stack. The gripper levers are actuated via the swivel shaft and the pinion by a toothed segment that sits on a control shaft in a rotationally fixed manner. The latter is rotatably mounted in the gripper drum and the two drum disks and has a cam lever which engages with a cam roller in a control groove of a fixed cam.
Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung gemäss der eingangs erwähnten Art zu schaffen, die weniger verschleissanfällig ist und eine geringere Lärmemission aufweist.The object of the present invention is to create a device according to the type mentioned at the outset which is less susceptible to wear and has a lower noise emission.
Erfindungsgemäss wird diese Aufgabe dadurch gelöst, dass der bewegliche Greifarm der Greifvorrichtung mit einem an der Fördertrommel um eine zu deren Drehachse parallele Achse schwenkbar gelagerten, in zwei in wenigstens einer Vertikalebene um die Drehachse der Fördertrommel ortsfest angeordneten, geschlossenen Führungsbahnen umlaufenden Doppelrollenhebel verbunden ist.According to the invention, this object is achieved in that the movable gripping arm of the gripping device is connected to a double roller lever which is pivotally mounted on the conveyor drum about an axis parallel to its axis of rotation and which rotates in two closed guide tracks which are arranged in a fixed manner in at least one vertical plane around the axis of rotation of the conveyor drum.
Dadurch kann eine grössere Laufruhe und ein erheblich geringerer Verschleiss an den bewegten Teilen erzielt werden. Zudem erlaubt diese Lösung flachere Krümmungen an den Führungsbahnen. Herstellung und Montage der betroffenen Teile sind anspruchslos.This allows for smoother running and significantly less wear on the moving parts. This solution also allows flatter curvatures on the guideways. Manufacturing and assembly of the affected parts are undemanding.
Die erfindungsgemässe Lösung ist sowohl bei einer durch Trommelumfang und einen beweglichen Greifarm gebildeten Greifvorrichtung wie auch bei einer durch zwei Greifarme gebildeten Greifvorrichtung möglich.The solution according to the invention is possible both with a gripping device formed by drum circumference and a movable gripping arm and also with a gripping device formed by two gripping arms.
Anschliessend wird die Erfindung unter Bezugnahme auf die Zeichnung, auf die bezüglich aller in der Beschreibung nicht näher erwähnten Einzelheiten ausdrücklich verwiesen wird, anhand eines Ausführungsbeispiels erläutert. In der Zeichnung zeigen:
- Fig. 1
- eine Schnittebene in der Drehachse der unvollständig dargestellten Fördertrommel einer erfindungsgemässen Vorrichtung und
- Fig. 2
- einen Schnitt durch die Drehachse der in Fig. 1 dargestellten Vorrichtung.
- Fig. 1
- a sectional plane in the axis of rotation of the incompletely shown conveyor drum of an inventive device and
- Fig. 2
- a section through the axis of rotation of the device shown in Fig. 1.
In den Fig. 1 und 2 ist der erfindungswesentlich betroffene Bereich einer Vorrichtung 1 (auch Anleger genannt) zur Beschikkung einer Verarbeitungsstrecke für Druckprodukte dargestellt. Diese Vorrichtung 1 besteht aus einer um eine waagrechte Drehachse 3 rotierende Fördertrommel 2, oberhalb welcher ein die mehrblättrigen, gefalzten Druckprodukte stapelndes Magazin 4 zugeordnet ist. Selbstverständlich könnten die Druckprodukte bekanntlich auch in stehender, gestapelter Anordnungsweise der Fördertrommel zugeführt werden. Der die Druckprodukte tragende Stapeltisch 5 des Magazins 4 bildet mit dem taktgleich gekuppelten schwenkbaren Rückhalter 6 eine Bodenöffnung 7, durch welche die Druckprodukte von einer mehrere Sauger 8 aufweisenden Trennvorrichtung 9 taktweise im Falzbereich erfasst und vorerst teilweise nach unten vom Stapel abgehoben werden. Die einzelnen Sauger 8 sind mit einer schwenkbar gelagerten Hohlwelle 10 verbunden, die ihrerseits mit einer Vakuumquelle (nicht ersichtlich) verbunden ist. Diese Funktionsweise ist bekannt und bedarf deshalb keiner Erklärungen.
Damit die Druckprodukte durch die Trennvorrichtung 9 vom Stapel teilweise abhebbar sind, wird -wie oben erwähnt- der den Stapel im Falzbereich stützende Rückhalter 6 in kurzer Folge zurückgezogen.1 and 2 show the area of a device 1 (also called feeder) which is essential to the invention for supplying a processing line for printed products. This device 1 consists of a conveyor drum 2 rotating about a horizontal axis of rotation 3, above which is assigned a magazine 4 stacking the multi-leaf, folded printed products. Of course, as is well known, the printed products could also be fed to the conveyor drum in a standing, stacked arrangement. The stacking table 5 of the magazine 4 carrying the printed products forms a bottom opening 7 with the pivotally coupled retractable retainer 6, through which the printed products are cyclically captured in the folding area by a separating device 9 having a plurality of suction cups 8 and are initially partially lifted down from the stack. The individual suction cups 8 are connected to a pivotably mounted hollow shaft 10, which in turn is connected to a vacuum source (not visible). This mode of operation is known and therefore requires no explanation.
So that the printed products can be partially lifted off the stack by the separating device 9, the retainer 6 supporting the stack in the fold area is withdrawn in a short sequence, as mentioned above.
Das im Falzbereich abgehobene Druckprodukt wird anschliessend durch eine an der in Richtung R drehenden Fördertrommel 2 befestigten, geöffneten Greifvorrichtung 11 unterlaufen, und in dem Moment von der Trennvorrichtung 9 freigegeben, wo ein beweglicher Greifarm 12 auf den Falzbereich des Druckproduktes aufschlägt bzw. letzteres auf einen mit der Greifvorrichtung 11 zusammenwirkenden Greifamboss 13 presst (dargestellt ohne Druckprodukt in Fig. 2 unterhalb des Rückhalters 6).
Der in Fig. 1 erkennbare zweiteilige Greifarm 12, der an den Endbereichen einer eine zur Drehachse 3 parallele Achse 14 bildenden, in einem Förderrad 16 der Fördertrommel 2 gelagerten Welle 15 mit dieser fest verbunden ist, wirkt mit an dem Greifamboss 13 befestigten, nichtmetallischen Erhebungen 17 zusammen, die den Reibungseffekt auf das jeweils eingespannte Druckprodukt begünstigen.
Das Oeffnen oder Schliessen der Greifvorrichtung 11 erfolgt durch einen in stationären resp. ortsfesten, auf zwei Vertikalebenen verteilte Führungsbahnen 18, 19 um die Drehachse 3 umlaufenden Doppelrollenhebel 20, der mit der Welle 15 durch einen erkennbaren Keil drehfest verbunden ist und an dem der eine in Schliessrichtung abgewinkelte Teil des Greifarmes 12 verstellbar festgeschraubt ist. Der andere, der Greifvorrichtung 11 zugehörige Greifarmteil ist auf die Welle 15 aufgesteckt und durch eine Klemmverbindung 21 an dieser arretiert.
Zwischen den zu einem Greifarm 12 abgewinkelten Teilen lagert der hebelartig ausgebildete Greifamboss 13, der im Querschnitt jochartig ausgebildet ist, an der Welle 15, welche wiederum von zwei beabstandeten Rillenkugellager 22 in einer Bohrung 23 im Umfangbereich des Förderrades 16 aufgenommen wird. Letzteres, das mit mehr als nur einer Greifvorrichtung 11 am Umfang ausgebildet sein kann, ist gemäss Fig. 2 im Wirkbereich der Greifvorrichtung 11 mit einer Ausnehmung 24 versehen. Der Boden der Ausnehmung 24 weist eine Vertiefung 25 auf, in der eine Druckfeder 26 angeordnet ist, die den Greifamboss 13 gegen einen Anschlag 27 an dem Förderrad 16 stösst, sofern die Greifvorrichtung 11 kein Druckprodukt festhält.The printed product lifted off in the folding area is then passed under by an open gripping device 11 fastened to the conveying drum 2 rotating in the R direction, and released at the moment when a movable gripping arm 12 hits the folding area of the printed product or the latter presses onto a gripping anvil 13 cooperating with the gripping device 11 (shown without printed product in FIG. 2 below the retainer 6).
The two-part gripper arm 12 shown in FIG. 1, which is firmly connected to the end regions of a shaft 15 which forms an axis 14 parallel to the axis of rotation 3 and is mounted in a conveyor wheel 16 of the conveyor drum 2, acts with non-metallic elevations attached to the gripper anvil 13 17 together, which favor the friction effect on the clamped printed product.
The opening or closing of the gripping device 11 is carried out by a stationary or resp. Fixed, on two vertical planes distributed guideways 18, 19 around the axis of rotation 3 rotating double roller lever 20, which is rotatably connected to the shaft 15 by a recognizable wedge and on which the angled part of the gripper arm 12 is screwed adjustably. The other, the gripping device 11 associated gripping arm part is attached to the shaft 15 and locked by a clamping connection 21 thereon.
Between the parts angled to form a gripper arm 12, the lever-like gripper anvil 13, which is yoke-like in cross section, is supported on the shaft 15, which in turn is received by two spaced deep groove ball bearings 22 in a bore 23 in the circumferential region of the feed wheel 16. The latter, which can be formed on the circumference with more than just one gripping device 11, is provided with a recess 24 in the effective area of the gripping device 11 according to FIG. 2. The bottom of the recess 24 has a recess 25, in which a compression spring 26 is arranged, which pushes the gripping anvil 13 against a stop 27 on the feed wheel 16, provided that the gripping device 11 does not hold a printed product.
Die variierende Dicke der Druckprodukte wird von der Druckfeder 26 aufgenommen, sodass der Greifarm 12 in der Schliessstellung eine mehr oder weniger konstante Lage einnimmt.
Die in Fig. 2 mit strichpunktierter Linie veranschaulichte Offenstellung des Greifarms 12, die in der Praxis etwa auf der gegenüberliegenden Seite der Drehachse 3 der Fördertrommel 2 zur Loslösung des Druckproduktes eintritt, vermittelt gegenüber der Schliessstellung einen Bewegungswinkel α von etwa 120°.
Der Doppelrollenhebel 20 weist an den Hebelenden jeweils an vorstehenden Lagerzapfen 28, 29 drehbar befestigte Rollen 30, 31 resp. Rillenkugellager auf, von denen jede in einer Führungsbahn 18, 19 geführt ist. Die geschlossen bzw. endlos ausgebildeten Führungsbahnen 18, 19 befinden sich in einem ortsfesten Führungsschild 32, in welchem auch die Antriebswelle 33 der Fördertrommel 2 einseitig gelagert ist. Als Antriebsverbindung zwischen Antriebswelle 33 und Fördertrommel 2 ist ein Keil 34 vorgesehen. Die Seitenbereiche der Fördertrommel 2 sind durch Stützscheiben 35 ausgebildet, die der Auflage der die Greifvorrichtung 11 seitlich überragenden Druckprodukte dient. Fig. 1 zeigt weiter, dass bei der dargestellten Ausführung die Führungsbahnen 18, 19 und die ihnen jeweils zugeordnete Rolle 30, 31 des Doppelrollenhebels 20 in zueinander versetzten Vertikalebenen zur Drehachse 3 der Fördertrommel 2 angeordnet sind.
Der Abstand der Rollenachsen zur Achse 14 der Welle 15 ist bei der vorliegenden Ausführung -nicht zwingend- gleich und der Doppelhebel 36 weist eine stumpf abgewinkelte Form auf (siehe Fig. 2), die im Winkelbereich eine Verbindung mit bzw. eine Lagerung an der Welle 15 gestattet.
Die auf den Doppelrollenhebel 20 steuernd einwirkenden Führungsbahnen 18, 19 sind in mehrere zur Auslösung der Funktionen der Greifvorrichtung 11 bestimmte Abschnitte aufgeteilt.The varying thickness of the printed products is absorbed by the compression spring 26, so that the gripper arm 12 assumes a more or less constant position in the closed position.
The open position of the gripper arm 12, illustrated in dash-dotted lines in FIG. 2, which occurs in practice, for example, on the opposite side of the axis of rotation 3 of the conveying drum 2 for releasing the printed product, conveys a movement angle α of approximately 120 ° with respect to the closed position.
The double roller lever 20 has at the lever ends of each protruding bearing pin 28, 29 rotatably fastened rollers 30, 31 respectively. Deep groove ball bearings, each of which is guided in a guideway 18, 19. The closed or endless guideways 18, 19 are located in a stationary guide plate 32, in which the drive shaft 33 of the conveyor drum 2 is mounted on one side. A wedge 34 is provided as the drive connection between drive shaft 33 and conveyor drum 2. The side areas of the conveyor drum 2 are formed by support disks 35, which serve to support the printed products projecting laterally from the gripping device 11. 1 further shows that in the embodiment shown the guideways 18, 19 and the roller 30, 31 of the double roller lever 20 assigned to them are arranged in mutually offset vertical planes to the axis of rotation 3 of the conveyor drum 2.
The distance between the roller axes and the axis 14 of the shaft 15 is not necessarily the same in the present embodiment and the double lever 36 has an obtuse angled shape (see FIG. 2), which in the angular range connects to or supports the shaft 15 allowed.
The guide tracks 18, 19 acting on the double roller lever 20 are divided into several sections intended to trigger the functions of the gripping device 11.
Dabei ist es nicht erheblich, ob der Druckproduktestapel oberhalb -mit aufeinanderliegenden Druckprodukten- oder seitlich versetzt -mit aneinanderstehenden Druckprodukten- zur Fördertrommel 2 angeordnet ist; die einzelnen Funktionsabschnitte der miteinander gemeinsam auf den Doppelrollenhebel 20 bzw. die Greifvorrichtung 11 oder den Greifarm 12 einwirkenden Führungsbahnen 18, 19 sind allenfalls bezüglich ihrer Länge unterschiedlich ausgebildet.
Das veranschaulichte Ausführungsbeispiel zeigt in Fig. 2 einen auf dem Stapeltisch 5 stehenden Druckproduktestapel. Bei einer Umdrehbewegung der Fördertrommel 2 wird durch eine Greifvorrichtung 11 das unterste Druckprodukt dem Stapel entnommen und angelegt, sei es zur Bildung eines Schuppenstromes oder in einer Vereinzelungsformation.
Durch eine der erfindungsgemässen Vorrichtung nachgeschaltete Druckprodukte-Oeffnungsvorrichtung wäre eine Verwendung für einen Sammelhefter ebenso möglich.
In der dargestellten Position der Greifvorrichtung 11 gemäss Fig. 2 hat letztere ein Druckprodukt übernommen, das unmittelbar vorher von der Trennvorrichtung 9 im Falzbereich vom Stapel abgehoben worden ist, wobei zu jenem Zeitpunkt der Rückhalter 6 aus dem Erfassungsbereich der Trennvorrichtung 9 ausgeschwenkt war.
Gemäss Darstellung hat sich die Greifvorrichtung 11 soeben geschlossen, -das Vakuum ist an der Trennvorrichtung jetzt ausgeschaltet-, und begibt sich anschliessend auf den Transportweg des Druckproduktes, das mit relativ hoher Geschwindigkeit unter dem Stapel herausgezogen wird.It is not significant whether the stack of printed products is arranged above the printed products lying one above the other or laterally offset with the printed products standing next to one another to the conveying drum 2; the individual functional sections of the guide tracks 18, 19 acting together with one another on the double roller lever 20 or the gripping device 11 or the gripping arm 12 are designed differently with respect to their length.
The illustrated exemplary embodiment shows in FIG. 2 a stack of printed products standing on the stacking table 5. When the conveyor drum 2 rotates, the bottom printed product is removed from the stack and applied by a gripping device 11, be it to form a stream of flakes or in a separation formation.
Using a printed product opening device downstream of the device according to the invention would also make it possible to use it for a saddle stitcher.
In the illustrated position of the gripping device 11 according to FIG. 2, the latter has taken over a printed product which was lifted from the stack by the separating device 9 in the fold area immediately beforehand, the retainer 6 having been swung out of the detection area of the separating device 9 at that time.
As shown, the gripping device 11 has just closed, the vacuum is now switched off at the separating device, and then embarks on the transport path of the printed product, which is pulled out from the stack at a relatively high speed.
Die Einspann- oder Klemmkraft in der Greifvorrichtung 11 wird durch die konstante Schliesslage des Greifarms 12 und den durch die Druckfeder 26 entgegenwirkenden Greifamboss 13 erzielt.The clamping or clamping force in the gripping device 11 is achieved by the constant closed position of the gripping arm 12 and the gripping anvil 13 counteracting by the compression spring 26.
Etwa auf der gegenüberliegenden Seite der Drehachse 3 öffnet sich die Greifvorrichtung 11 wieder und gibt das Druckprodukt von der Fördertrommel 2 frei. Die ortsfest angeordneten Führungsbahnen 18, 19 halten die Greifvorrichtung 11 von der Erfassungsstelle bis zur Freigabe des Druckproduktes durch einen konzentrischen Verlauf ihrer beiden Bahnabschnitte 37 und 38 zur Drehachse 3 geschlossen.
Die Befreiung der Druckprodukte durch Oeffnen der Greifvorrichtung 11 erfolgt unmittelbar anschliessend, indem sich die Führungsbahnen 18, 19 nach den Bahnabschnitten 37, 38 kreuzen, so dass die im Bereich der Bahnabschnitte 37, 38 äussere Führungsbahn 18 ihre Lage nach innen -also näher zur Drehachse 3 hinund die im Bereich der Bahnabschnitte 37, 38 innere Führungsbahn 19 die Lage nach aussen ändert; dies selbstverständlich übergangslos resp. stetig. Der Verlauf der Führungsbahnen 18, 19 ändert sich ein weiteres Mal durch einen kreuzenden Verlauf der Führungsbahnen 18, 19 vor der Schliessbewegung der Greifvorrichtung 11, unmittelbar vor dem Beginn der konzentrischen Bahnabschnitte 37, 38. Diese Funktionsfolge orientiert sich nach der Drehrichtung R der Fördertrommel 2.
Der Verlauf der Führungsbahnen 18, 19 zur Offenstellung der Greifvorrichtung 11 durch Kreuzen der Führungsbahnen 18, 19 ist auf der gegenüberliegenden Seite der Drehachse 3 vorzugsweise so gewählt, dass der offene Greifarm 12 etwa wie in Fig. 2 gezeigt hinter den Umfang der Fördertrommel 2 zurückschwenkt.The gripping device 11 opens again approximately on the opposite side of the axis of rotation 3 and releases the printed product from the conveying drum 2. The stationary guideways 18, 19 keep the gripping device 11 closed from the detection point until the release of the printed product by a concentric course of its two path sections 37 and 38 to the axis of rotation 3.
The release of the printed products by opening the gripping device 11 takes place immediately afterwards, in that the guide tracks 18, 19 intersect after the track sections 37, 38, so that the outer guide track 18 in the area of the track sections 37, 38 moves inward, that is, closer to the axis of rotation 3 and the inner guide track 19 in the area of the track sections 37, 38 changes the position to the outside; this, of course, seamlessly. steadily. The course of the guide tracks 18, 19 changes again by a crossing course of the guide tracks 18, 19 before the closing movement of the gripping device 11, immediately before the start of the concentric track sections 37, 38. This sequence of functions is based on the direction of rotation R of the conveyor drum 2 ,
The course of the guideways 18, 19 for the open position of the gripping device 11 by crossing the guideways 18, 19 on the opposite side of the axis of rotation 3 is preferably selected such that the open gripping arm 12 swings back behind the circumference of the conveyor drum 2, as shown in FIG. 2 ,
Claims (17)
- Device (1) for charging a processing line with printed products, comprising a conveyor drum (2) which pulls the stack of printed products individually from a magazine (4), and which, on an approximately circular circulation path, on which the printed product lifted partly off the stack by means of a separating device (9) can be laid with an edge to be gripped, has a gripping device (11) which is formed by at least one movable gripping arm (12), can be controlled into an open or a closed position by means of a cam mechanism connected to a closed guide track that is arranged in a vertical plane with respect to the axis of rotation (3) and arranged in a stationary position about the latter, and accepts the printed product from the separating device (9), characterized in that the movable gripping arm (12) of the gripping device (11) is connected to a double roller lever (20) which is mounted on the conveyor drum (2) such that it can be pivoted about an axis (14) parallel to the axis of rotation (3) of the latter and revolves in two closed guide tracks (18, 19) which are arranged in a fixed position in at least one vertical plane around the axis of rotation (3) of the conveyor drum (2).
- Device according to Claim 1, characterized in that the guide tracks (18, 19) respectively assigned to a roller (30, 31) of the double roller lever (20) are arranged in spaced-apart vertical planes in relation to the axis of rotation (3) of the conveyor drum (2).
- Device according to Claim 1 or 2, having at least one gripping device (11) formed by a part of the conveyor drum (2) and a movable gripping arm (12).
- Device according to Claim 1 or 2, having at least one gripping device (11) which is formed by two interacting gripping arms and is fixed to the conveyor drum (2).
- Device according to Claim 3 or 4, characterized in that the guide tracks (18, 19) are each assigned a roller (30, 31) of the double roller lever (20).
- Device according to Claim 5, characterized in that the double roller lever (20) is mounted on the conveyor drum (2) between the rollers (30, 31).
- Device according to Claim 5 or 6, characterized in that the double roller lever (20) is angled over between the rollers (30, 31) and is mounted on the conveyor drum (2) in the angled-over region.
- Device according to Claim 6 or 7, characterized in that the rollers (30, 31) are preferably equally far away from the pivot axis (14) of the double roller lever (20).
- Device according to one of Claims 2 to 8, characterized in that the rollers (30, 31) are mounted on the double roller lever (20) so as to be offset in accordance with the distance between the guide tracks (18, 19) provided along the axis of rotation (3).
- Device according to one of Claims 5 to 9, characterized in that the guide tracks (18, 19) have an outer first track section (37, 38) which is assigned to the closed gripping device (11) and is further away, and an inner first track section (37, 38) which is concentric with the axis of rotation (3), and in that, in order to open and close the gripping device (11), the guide tracks (18, 19) adjacent to the end regions of the first track sections (37, 38) cross in such a way that the guide track (18) of the outer first track section (37) on the opposite side of the axis of rotation (3) is closer opposite the latter than the guide track (19) of the inner first track section (38).
- Device according to Claim 10, characterized in that the track sections (37, 38) assigned to the closed gripping device (11) form an obtuse-angled circular sector around the axis of rotation (3) of the conveyor drum (2).
- Device according to Claims 10 and 11, characterized in that the guide tracks (18, 19) of the rollers (30, 31) are groove-like.
- Device according to one of Claims 1 to 12, characterized in that a gripping anvil (13) interacting with the movable gripping arm (12) and belonging to the gripping device (11) can be moved approximately radially with respect to the axis of rotation (3) of the conveyor drum (2), counter to a spring force.
- Device according to Claim 13, characterized in that the gripping anvil (13) forms the movable end of a lever mounted on the pivot axis (14) of the gripping arm (12).
- Device according to either of Claims 13 and 14, characterized in that the outer reciprocating end position of the gripping anvil (13) is determined by a stop (27) on the conveyor drum (2).
- Device according to Claim 15, characterized in that the reciprocating end position of the anvil gripper (13) corresponds approximately to the flight path on the circumference of the conveyor drum (2).
- Device according to one of Claims 1 to 16, characterized in that the gripping arm (12) angled over towards the axis of rotation (3) of the conveyor drum (2) at the free end is fixed to the double roller lever (20) such that it can be detached and/or such that it can be adjusted with respect to the closed position of the gripping device (11).
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE59812448T DE59812448D1 (en) | 1998-02-18 | 1998-02-18 | Device for feeding a processing line with printed products |
| EP98810134A EP0937670B1 (en) | 1998-02-18 | 1998-02-18 | Device for charging a processing line with printed products |
| US09/247,607 US6186500B1 (en) | 1998-02-18 | 1999-02-10 | Apparatus for feeding printed products to a processing unit |
| JP11037688A JPH11314777A (en) | 1998-02-18 | 1999-02-16 | Device for supplying printed matter to processing section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98810134A EP0937670B1 (en) | 1998-02-18 | 1998-02-18 | Device for charging a processing line with printed products |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0937670A1 EP0937670A1 (en) | 1999-08-25 |
| EP0937670B1 true EP0937670B1 (en) | 2004-12-29 |
Family
ID=8235950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98810134A Expired - Lifetime EP0937670B1 (en) | 1998-02-18 | 1998-02-18 | Device for charging a processing line with printed products |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6186500B1 (en) |
| EP (1) | EP0937670B1 (en) |
| JP (1) | JPH11314777A (en) |
| DE (1) | DE59812448D1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10212536A1 (en) * | 2001-04-30 | 2002-10-31 | Heidelberger Druckmasch Ag | Repulsion device for sheet material has repeller coupled to grip shaft via transmission |
| US6769678B2 (en) * | 2001-11-28 | 2004-08-03 | Heidelberger Druckmaschinen Ag | Sheet separating device |
| DE102019129647A1 (en) * | 2019-11-04 | 2021-05-06 | Koenig & Bauer Ag | Sheet processing machine with at least one feed system and method for controlling a feed system of a sheet processing machine |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2508608A (en) * | 1945-11-23 | 1950-05-23 | Hoe & Co R | Sheet registering mechanism |
| US2853297A (en) * | 1954-04-22 | 1958-09-23 | Time Inc | Stream feeder device |
| DE1122963B (en) * | 1960-05-31 | 1962-02-01 | Kartonagenmaschinenwerk Kama V | Sheet delivery device on platen printing presses |
| CH408065A (en) * | 1961-10-03 | 1966-02-28 | Mueller Hans | Depositing machine for depositing sheets of paper on a transport device |
| DE1212562B (en) * | 1965-01-20 | 1966-03-17 | Koenig & Bauer Schnellpressfab | Rotating sheet feeder on printing machines |
| GB1209831A (en) * | 1967-03-04 | 1970-10-21 | Maschf Augsburg Nuernberg Ag | A rotary sheet printing machine impression cylinder or intermediate drum |
| US3992993A (en) * | 1975-03-25 | 1976-11-23 | Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen | Sheet transfer system for a printing machine |
| DE2821895C2 (en) * | 1978-05-19 | 1980-03-20 | Heinz-Werner 4000 Duesseldorf Knuppertz | Labeling machine, especially for bottles with a four-swivel joint as a drive |
| GB2050312B (en) * | 1979-05-29 | 1983-05-18 | Metal Box Co Ltd | Gripping mechanism for printing machine |
| CH641112A5 (en) * | 1979-10-17 | 1984-02-15 | Grapha Holding Ag | FEEDER FOR PRINTED SHEET. |
| SU1395527A1 (en) * | 1986-06-17 | 1988-05-15 | Украинский Полиграфический Институт Им.Ив.Федорова | Delivery arrangement for web-fed printing machine |
| US4921294A (en) * | 1988-06-03 | 1990-05-01 | Am International Incorporated | Spring wire gripper jaw |
| CH677652A5 (en) * | 1989-03-07 | 1991-06-14 | Grapha Holding Ag | |
| DE59302635D1 (en) * | 1992-02-19 | 1996-06-27 | Ferag Ag | Gripper for a conveyor for conveying single or multi-sheet printed products |
| ES2100421T3 (en) * | 1993-01-14 | 1997-06-16 | Ferag Ag | DEVICE FOR FEEDING FLAT ITEMS TO A PRINTING PRODUCT HANDLING DEVICE. |
| US5465952A (en) * | 1993-02-17 | 1995-11-14 | Ferag Ag | Gripper for a conveying device for conveying single-sheet or multiple-sheet printed products |
| DK0628505T3 (en) * | 1993-05-21 | 1998-02-23 | Ferag Ag | Device for separating stacked printing products |
| EP0699611B1 (en) * | 1994-08-31 | 1998-05-27 | Ferag AG | Conveying device for feeding flat printed products to a processing machine |
| US6039317A (en) * | 1996-11-05 | 2000-03-21 | Grapha-Holding Ag | Gripper releasing device signature conveyor |
| EP0863099B1 (en) * | 1997-03-04 | 2001-11-21 | Ferag AG | Device for separating piled printed products |
-
1998
- 1998-02-18 EP EP98810134A patent/EP0937670B1/en not_active Expired - Lifetime
- 1998-02-18 DE DE59812448T patent/DE59812448D1/en not_active Expired - Lifetime
-
1999
- 1999-02-10 US US09/247,607 patent/US6186500B1/en not_active Expired - Lifetime
- 1999-02-16 JP JP11037688A patent/JPH11314777A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| EP0937670A1 (en) | 1999-08-25 |
| DE59812448D1 (en) | 2005-02-03 |
| US6186500B1 (en) | 2001-02-13 |
| JPH11314777A (en) | 1999-11-16 |
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