EP1201577B1 - Sheet feeding device - Google Patents

Sheet feeding device Download PDF

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Publication number
EP1201577B1
EP1201577B1 EP01122532A EP01122532A EP1201577B1 EP 1201577 B1 EP1201577 B1 EP 1201577B1 EP 01122532 A EP01122532 A EP 01122532A EP 01122532 A EP01122532 A EP 01122532A EP 1201577 B1 EP1201577 B1 EP 1201577B1
Authority
EP
European Patent Office
Prior art keywords
drive
speed
sheets
transport
sheet
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
Application number
EP01122532A
Other languages
German (de)
French (fr)
Other versions
EP1201577A3 (en
EP1201577A2 (en
Inventor
Victor Hefftler
Guntram Diem
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.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1201577A2 publication Critical patent/EP1201577A2/en
Publication of EP1201577A3 publication Critical patent/EP1201577A3/en
Application granted granted Critical
Publication of EP1201577B1 publication Critical patent/EP1201577B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H11/00—Feed tables
    • B65H11/002—Feed tables incorporating transport belts
    • 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
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6609—Advancing articles in overlapping streams forming an overlapping stream
    • 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
    • B65H29/66—Advancing articles in overlapping streams
    • B65H29/6654—Advancing articles in overlapping streams changing the overlapping figure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/08—Separating articles from piles using pneumatic force
    • B65H3/0808—Suction grippers
    • B65H3/0816—Suction grippers separating from the top of pile
    • 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
    • B65H5/24—Feeding articles in overlapping streams, i.e. by separation of articles from a pile
    • 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
    • B65H5/34—Varying the phase of feed relative to the receiving machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/10—Selective handling processes
    • B65H2301/14—Selective handling processes of batches of material of different characteristics
    • B65H2301/141—Selective handling processes of batches of material of different characteristics of different format, e.g. A0 - A4
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4432—Moving, forwarding, guiding material by acting on surface of handled material by means having an operating surface contacting only one face of the material, e.g. roller
    • B65H2301/44322—Moving, forwarding, guiding material by acting on surface of handled material by means having an operating surface contacting only one face of the material, e.g. roller belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2403/00—Power transmission; Driving means
    • B65H2403/80—Transmissions, i.e. for changing speed
    • B65H2403/82—Variable speed drive units
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/40—Increasing or maximizing
    • B65H2601/42—Increasing or maximizing entities relating to the handling machine
    • B65H2601/422—Versatility
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/176—Cardboard

Definitions

  • the invention relates to a device for supplying sheets to a suction head to Cyclically separating the sheets from a stack of separating suction cups, with transport suckers for transporting the sheets in the sheet conveying direction to a belt table, having the conveyor belts, transported by the bow in a scale and subsequently fed to a sheet-processing machine, with a drive for the Suction head and a drive for the conveyor belts, which influences the conveying speed and thus the relay spacing of the bow is switchable.
  • the disadvantage is that only at a speed and thus a stagger spacing an optimization of the acceleration and speed curves of the conveyor belts and transport suction and thus an optimization of the transfer conditions between the conveyor belts and the transport suckers is possible. This results in a different speed and so changed season distance to early, late or oblique. Since the sheets to be processed can be made of cardboard, plastic, sheet metal or paper, there is also the possibility that paper sheets are damaged during the transfer or when processing rigid sheets, the transport suckers are subject to high wear.
  • the object of the invention is to change a generic device so that at every staggering distance optimal conditions when transferring the sheets from the transport suckers can be realized on the conveyor belts.
  • the object is achieved by the features of claim 1.
  • the solution according to the invention it is possible to increase the universality of sheet-processing machines by the staggering distance can be changed, the transfer conditions remain constant regardless of the respective stagger spacing.
  • the apparatus shown in Fig. 1 for feeding sheets consists of a sheet feeder 1, a belt table 2 and the belt table 2 associated front marks 3.
  • the sheet feeder 1 has a suction head 4 with suction pads 5 and 6 transport suction.
  • an existing sheet of sheet pile 8 8 is provided in sheet feeder 1 .
  • the belt conveyor 2 downstream of the sheet feeder 1 in the sheet conveying direction 10 has a table sheet 9 and belt rollers 11, 12 extending transversely to the sheet conveying direction 10.
  • the band rollers 11, 12 are wrapped by one or more conveyor belts 13, which are guided by guide rollers 14 and tension rollers 15.
  • the front markers 3 provided on the end of the belt table 2 facing away from the sheet feeder 1 can be moved periodically from the position shown in FIG. 1 into a position below the belt table 2 by means not shown.
  • the belt table 2, a vibrating system 16 and a feed drum 17 are further downstream of a sheet-processing machine and in the region of the sheet feeder 1 facing end associated with a belt roller 11 clock roller 18.
  • One of the belt rollers 11, 12 is a drive 19, assigned in the embodiment of the belt roller 11.
  • the drive 19 consists of a transmission gear 19.1 and a manual transmission 19.2.
  • the gearbox 19.2 derived from the downstream sheet-processing machine uniform rotary motion is fed to the transmission gear 19.1, which converts them into a sinusoidal rotational movement.
  • the transmission gear 19.1 is coupled to the belt roller 11.
  • the manual transmission 19.2 for example, provided with switch positions I, II, III, with other switching positions can be provided.
  • switch positions I, II, III with other switching positions can be provided.
  • a translation 1: 1 In the switching position I, a translation 1: 1 and thus, for example, such a graduated spacing realized that n sheet 7 lie on the belt table 2.
  • an electric motor 22 as the drive 19 and to assign the suction head 4 as the drive 20 to an electric motor 23.
  • the motors 22, 23 and thus the conveyor belts 13 and the suction head 4 via a computer and control unit 24 is clocked synchronously with the sheet-processing machine driven by the computer and control unit 24 synchronizing signals of the sheet processing machine are fed to a such a pitch is realized that n sheets 7 lie on the belt table 2 and the transfer conditions are optimized.
  • a sinusoidal drive of the conveyor belts 13 is also realized in a likewise known manner.
  • an input device 25 for example, in order to be able to change the graduation distance 1, eg a transmission ratio n +1 or n-1 is activated, whereby n + 1 sheet 7 or n-1 sheet 7 are provided on the belt table 2.
  • the control and control device 24 is further associated with a memory 26 by speed profiles are stored, which the motor 23 of the suction head 4 follows and thus the transport suction 6 drives so that when changing the stagger spacing 1 optimal transfer conditions in the transfer of the sheet 7 of the transport suckers 6 are given to the conveyor belts 13.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Description

Die Erfindung betrifft eine Einrichtung zum Zuführen von Bogen mit an einem Saugkopf zum taktweisen Vereinzeln der Bogen von einem Stapel angeordneten Trennsaugern, mit Transportsaugern zum Transportieren der Bogen in Bogenförderrichtung zu einem Bändertisch, der Transportbänder aufweist, durch die die Bogen schuppenförmig transportiert und nachfolgend einer bogenverarbeitenden Maschine zugeführt werden, mit einem Antrieb für den Saugkopf sowie einem Antrieb für die Transportbänder, der zur Beeinflussung der Fördergeschwindigkeit und damit des Staffelabstandes der Bogen umschaltbar ist.The invention relates to a device for supplying sheets to a suction head to Cyclically separating the sheets from a stack of separating suction cups, with transport suckers for transporting the sheets in the sheet conveying direction to a belt table, having the conveyor belts, transported by the bow in a scale and subsequently fed to a sheet-processing machine, with a drive for the Suction head and a drive for the conveyor belts, which influences the conveying speed and thus the relay spacing of the bow is switchable.

Bei Vorrichtungen zum schuppenförmigen Zuführen von Bogen ist eine sogenannte Schuppung oder auch Staffelabstand vorgegeben, d.h. der Abstand von Bogen zu Bogen weist ein bestimmtes Maß auf. Diese konstante Schuppung bzw. dieser konstante Staffelabstand schränkte die Universalität der nachgeordneten bogenverarbeitenden Maschine ein.
Um die Schuppung zu verändern, ist es aus der EP 0 313 868 A2 bekannt, den Transportbändern einen Antrieb zuzuordnen, mit dem unterschiedliche Transportgeschwindigkeiten realisiert werden können. So können bei einer ersten Geschwindigkeit großformatige Bogen schuppenförmig und bei einer zweiten Geschwindigkeit, die doppelt so groß wie die erste Geschwindigkeit ist, kleinformatige Bogen als Einzelbogen angelegt werden.In devices for scale-like feeding of sheets, a so-called scaling or even stagger spacing is specified, ie the distance from sheet to sheet has a certain degree. This constant scaling or constant stagger spacing limited the universality of the downstream sheet processing machine.
In order to change the scaling, it is known from EP 0 313 868 A2 to assign a drive to the conveyor belts, with which different transport speeds can be realized. Thus, at a first speed, large-sized sheets may be scaled, and at a second speed twice the first speed, small-sized sheets may be laid out as single sheets.

Nachteilig ist, dass nur bei einer Geschwindigkeit und damit einem Staffelabstand eine Optimierung der Beschleunigungs- und Geschwindigkeitsverläufe der Transportbänder und Transportsauger und damit eine Optimierung der Übergabebedingungen zwischen den Transportbändern und den Transportsaugern möglich ist.
Damit kommt es bei einer anderen Geschwindigkeit und so geändertem Staffelabstand zu Früh-, Spät- oder Schiefbogen. Da die zur Verarbeitung gelangenden Bogen aus Karton, Kunststoff, Blech oder Papier bestehen können, besteht außerdem die Möglichkeit, dass Papierbogen bei der Übergabe beschädigt werden bzw. bei der Verarbeitung steifer Bogen die Transportsauger einem hohen Verschleiß unterliegen.The disadvantage is that only at a speed and thus a stagger spacing an optimization of the acceleration and speed curves of the conveyor belts and transport suction and thus an optimization of the transfer conditions between the conveyor belts and the transport suckers is possible.
This results in a different speed and so changed season distance to early, late or oblique. Since the sheets to be processed can be made of cardboard, plastic, sheet metal or paper, there is also the possibility that paper sheets are damaged during the transfer or when processing rigid sheets, the transport suckers are subject to high wear.

Aufgabe der Erfindung ist es, eine gattungsgemäße Einrichtung so zu verändern, dass bei jedem Staffelabstand optimale Bedingungen bei der Übergabe der Bogen von den Transportsaugern an die Transportbänder realisiert werden können. The object of the invention is to change a generic device so that at every staggering distance optimal conditions when transferring the sheets from the transport suckers can be realized on the conveyor belts.

Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruchs 1 realisiert.
Durch die erfindungsgemäße Lösung ist es möglich, die Universalität von bogenverarbeitenden Maschinen zu erhöhen, indem der Staffelabstand verändert werden kann, wobei die Übergabebedingungen unabhängig vom jeweiligen Staffelabstand konstant bleiben.According to the invention the object is achieved by the features of claim 1.
By the solution according to the invention, it is possible to increase the universality of sheet-processing machines by the staggering distance can be changed, the transfer conditions remain constant regardless of the respective stagger spacing.

Nachfolgend wird die Erfindung an einem Ausführungsbeispiel näher erläutert. In den zugehörigen Zeichnungen zeigen

Fig. 1:
eine Einrichtung zum Zuführen von Bogen in der Seitenansicht
Fig. 2:
das Wegschaubild der Transportbänder
Fig. 3:
das Geschwindigkeitsschaubild der Transportbänder
Fig. 4:
das Wegschaubild der Transportsauger
Fig. 5:
das Geschwindigkeitsschaubild der Transportsauger
Fig. 6:
den Überlagerungsgeschwindigkeitsverlauf des Antriebs für den Saugkopf
Fig. 7:
den Drehzahlverlauf des Antriebs für den Saugkopf
Fig. 8:
eine weitere Ausführungsform der Einrichtung gem. Fig. 1.
The invention will be explained in more detail using an exemplary embodiment. In the accompanying drawings show
Fig. 1:
a device for feeding sheets in the side view
Fig. 2:
the route diagram of the conveyor belts
3:
the speed diagram of the conveyor belts
4:
the way diagram of the transport suction
Fig. 5:
the speed diagram of the transport suckers
Fig. 6:
the superimposition rate of the drive for the suction head
Fig. 7:
the speed curve of the drive for the suction head
Fig. 8:
a further embodiment of the device gem. Fig. 1.

Die in Fig. 1 dargestellte Einrichtung zum Zuführen von Bogen besteht aus einem Bogenanleger 1, einem Bändertisch 2 sowie dem Bändertisch 2 zugeordneten Vordermarken 3. Der Bogenanleger 1 weist einen Saugkopf 4 mit Trennsaugern 5 und Transportsaugern 6 auf. Im Bogenanleger 1 ist ein aus Bogen 7 bestehender Bogenstapel 8 vorgesehen. Der in Bogenförderrichtung 10 dem Bogenanleger 1 nachgeordnete Bändertisch 2 weist ein Tischblech 9 sowie sich quer zu Bogenförderrichtung 10 erstreckende Bänderwalzen 11, 12 auf. Die Bänderwalzen 11, 12 werden von einem oder mehreren Transportbändern 13 umschlungen, die durch Umlenkrollen 14 und Spannrollen 15 geführt werden.
Die am dem Bogenanleger 1 abgewandten Ende des Bändertischs 2 vorgesehenen Vordermarken 3 können durch nicht dargestellte Mittel periodisch aus der in Fig. 1 dargestellten Position in eine Position unter dem Bändertisch 2 verbracht werden. Dem Bändertisch 2 sind weiterhin eine Schwinganlage 16 und eine Anlegtrommel 17 einer bogenverarbeitenden Maschine nachgeordnet sowie im Bereich des dem Bogenanleger 1 zugewandten Endes eine mit der Bänderwalze 11 korrespondierende Taktwalze 18 zugeordnet.
Einer der Bänderwalzen 11, 12 ist ein Antrieb 19, im Ausführungsbeispiel der Bänderwalze 11, zugeordnet. Der Antrieb 19 besteht aus einem Übertragungsgetriebe 19.1 und einem Schaltgetriebe 19.2. The apparatus shown in Fig. 1 for feeding sheets consists of a sheet feeder 1, a belt table 2 and the belt table 2 associated front marks 3. The sheet feeder 1 has a suction head 4 with suction pads 5 and 6 transport suction. In sheet feeder 1 an existing sheet of sheet pile 8 8 is provided. The belt conveyor 2 downstream of the sheet feeder 1 in the sheet conveying direction 10 has a table sheet 9 and belt rollers 11, 12 extending transversely to the sheet conveying direction 10. The band rollers 11, 12 are wrapped by one or more conveyor belts 13, which are guided by guide rollers 14 and tension rollers 15.
The front markers 3 provided on the end of the belt table 2 facing away from the sheet feeder 1 can be moved periodically from the position shown in FIG. 1 into a position below the belt table 2 by means not shown. The belt table 2, a vibrating system 16 and a feed drum 17 are further downstream of a sheet-processing machine and in the region of the sheet feeder 1 facing end associated with a belt roller 11 clock roller 18.
One of the belt rollers 11, 12 is a drive 19, assigned in the embodiment of the belt roller 11. The drive 19 consists of a transmission gear 19.1 and a manual transmission 19.2.

Über das Schaltgetriebe 19.2 wird die von der nachgeordneten bogenverarbeitenden Maschine abgeleitete gleichförmige Drehbewegung dem Übertragungsgetriebe 19.1 zugeleitet, welches diese in eine sinusförmige Drehbewegung umwandelt. Das Übertragungsgetriebe 19.1 ist mit der Bänderwalze 11 gekoppelt. Im Ausführungsbeispiel ist das Schaltgetriebe 19.2 beispielsweise mit Schaltstellungen I, II, III versehen, wobei auch weitere Schaltstellungen vorgesehen werden können. In der Schaltstellung I wird eine Übersetzung 1:1 und damit z.B. ein solcher Staffelabstand realisiert, dass n Bogen 7 auf dem Bändertisch 2 liegen. Mit der Schaltstellung II wird ein Übersetzungsverhältnis n + 1 / n und damit ein geringerer Staffelabstand 1 realisiert, so dass n + 1 Bogen 7 auf dem Bändertisch liegen, während in der Schaltstellung III ein Übersetzungsverhältnis n - 1 / n eingestellt wird, wodurch der Staffelabstand 1 vergrößert wird und damit n-1 Bogen auf dem Bändertisch 2 vorgesehen werden. In Fig. 2 und 3 sind der Weg- und der Geschwindigkeitsverlauf der Transportbänder 13 in den Schaltstellungen I, II, III des Schaltgetriebes 19.2 dargestellt. Diese Darstellungen zeigen, dass die Geschwindigkeit in jeder Schaltstellung I, II, II in einem angenommenen Übergabepunkt Ü, der im Ausführungsbeispiel bei 90° einer Eintourenwelle liegt, in dem die Übergabe der Bogen 7 von den Transportsaugern an die Transportbänder 13 erfolgt, voneinander verschieden und damit die Übergabeverhältnisse unterschiedlich sind, was zu den bekannten Nachteilen führt.
Zur Vermeidung dieser Nachteile ist einem dem Saugkopf 4 zugeordnetem Antrieb 20 ein eine sinusähnliche Abtriebsbewegung realisierendes Getriebe 21 vorgeordnet. Dieses Getriebe 21 kann z.B. als Räderkoppelgetriebe ausgebildet sein und weist analog zum Schaltgetriebe 19.2 ebenfalls drei Schaltstellung I, II, III auf. Ist das Schaltgetriebe 19.2 mit weiteren Schaltstufen versehen, so ist auch das Getriebe 21 mit einer entsprechenden Anzahl Schaltstufen ausgestattet. In der Schaltstellung I wird die von der dem Bogenanleger 1 nachgeordneten bogenverarbeitenden Maschine abgeleitete gleichförmige Drehbewegung ohne Überlagerung mit einer anderen Bewegung dem Antrieb 20 des Saugkopfes 4 zugeführt. Ist auch die Schaltstellung I des Übertragungsgetriebes 19.1 eingestellt, werden ein für den Bogenanleger 1 charakteristischer Staffelabstand und damit n Bogen 7 auf dem Bändertisch 2 sowie optimale Übergabebedingungen bei der Übergabe der Bogen 7 von den Transportsaugern 6 an die Transportbänder 13 realisiert. About the gearbox 19.2 derived from the downstream sheet-processing machine uniform rotary motion is fed to the transmission gear 19.1, which converts them into a sinusoidal rotational movement. The transmission gear 19.1 is coupled to the belt roller 11. In the exemplary embodiment, the manual transmission 19.2, for example, provided with switch positions I, II, III, with other switching positions can be provided. In the switching position I, a translation 1: 1 and thus, for example, such a graduated spacing realized that n sheet 7 lie on the belt table 2. With the shift position II, a gear ratio n + 1 / n and thus a lesser stagger spacing 1 is realized, so that n + 1 arc 7 lie on the belt table, while in the shift position III, a gear ratio n - 1 / n is set, whereby the stagger spacing 1 is increased and thus n-1 sheets are provided on the belt table 2. In Fig. 2 and 3, the path and the velocity profile of the conveyor belts 13 in the switching positions I, II, III of the gearbox 19.2 are shown. These representations show that the speed in each shift position I, II, II in an assumed transfer point Ü, which is 90 ° in the exemplary embodiment of a single-turn, in which the transfer of the sheets 7 from the transport suckers to the conveyor belts 13 takes place, different from each other and so that the transfer ratios are different, which leads to the known disadvantages.
In order to avoid these disadvantages, a drive 21 which is associated with the suction head 4 is preceded by a gear 21 which realizes a sinusoidal output movement. This transmission 21 may be formed, for example, as a gear coupling gear and has analogous to the manual transmission 19.2 also three switching position I, II, III. If the manual transmission 19.2 provided with further switching stages, so is the transmission 21 equipped with a corresponding number of switching stages. In the switching position I derived from the sheet feeder 1 downstream sheet-processing machine uniform rotary motion without interference with another movement to the drive 20 of the suction head 4 is supplied. Is also the shift position I of the transmission gear 19.1 set a characteristic of the sheet feeder 1 stagger spacing and thus n sheet 7 on the belt table 2 and optimal transfer conditions in the transfer of the sheet 7 of the transport suckers 6 to the conveyor belts 13 are realized.

In den Figuren 4 und 5 ist der Weg- und Geschwindigkeitsverlauf der Transportsauger 6 in der Schaltstellung I - damit n Bogen 7 auf dem Bändertisch 2 - dargestellt, wobei im Übergabepunkt Ü (im Ausführungsbeispiel bei 90° einer Eintourenwelle) die Übergabe der Bogen 7 von den Transportsaugern 6 an die Transportbänder 13 erfolgt (Fig. 2 und 3).
In diesem Übergabepunkt Ü sind die Geschwindigkeitsverhältnisse zwischen den Transportsaugern 6 und den Transportbändern 12 aufeinander abgestimmt und damit die Übergabebedingungen optimiert. Da, wie aus den Fig. 2 und 3 ersichtlich, in den Schaltstellungen II und III des Schaltgetriebes 19.2 im Übergabepunkt Ü die Weg- und Geschwindigkeitsverläufe verändert wurden, müssen die Weg- und Geschwindigkeitsverläufe der Transportsauger 6 entsprechend nachgeführt werden, was, wie in den Figuren 4 und 5 dargestellt, durch Überlagerung des Geschwindigkeitsverlaufes VA bei n Bogen 7 mit der von dem Getriebe 21 initiierten Sinusbewegung (Fig. 6) realisiert wird. In der Figur 7 ist der Verlauf der Drehzahl WA des Antriebes 20 dargestellt und gezeigt, dass die momentane Drehzahl im Übergabepunkt Ü unabhängig von der gewählten Schaltstellung I, II oder III gleich ist.
Das Schaltgetriebe 19.2 und das eine sinusähnliche Abtriebsbewegung realisierende Getriebe 21 können verknüpft sein, so dass bei einer Stellhandlung jeweils für beide Getriebe 19.2, 21 gleiche Schaltstufen eingestellt werden.
Unabhängig davon ist es auch möglich, als Antrieb 19 einen Elektromotor 22 vorzusehen und dem Saugkopf 4 als Antrieb 20 einen Elektromotor 23 zuzuordnen. In an sich bekannter Weise werden die Motoren 22, 23 und damit die Transportbänder 13 und der Saugkopf 4 über eine Rechner- und Steuereinheit 24 taktsynchron mit der bogenverarbeitenden Maschine angetrieben, indem der Rechner- und Steuereinheit 24 Synchronisiersignale der bogenverarbeitenden Maschine zugeleitet werden, wobei ein solcher Staffelabstand realisiert wird, dass n Bogen 7 auf dem Bändertisch 2 liegen und die Übergabebedingungen optimiert sind. Durch die Rechner- und Steuereinheit 24 wird weiterhin auf ebenfalls bekannte Weise ein sinusförmiger Antrieb der Transportbänder 13 realisiert. Über ein Eingabegerät 25 kann au-βerdem, um den Staffelabstand 1 verändern zu können, z.B. ein Übersetzungsverhältnis n +1 oder n - 1 aktiviert werden, wodurch n + 1 Bogen 7 oder n - 1 Bogen 7 auf dem Bändertisch 2 vorgesehen werden. Der Regel- und Steuereinrichtung 24 ist weiterhin ein Speicher 26 zugeordnet, indem Geschwindigkeitsverläufe abgelegt sind, denen der Motor 23 des Saugkopfes 4 folgt und damit die Transportsauger 6 so antreibt, dass bei einer Änderung des Staffelabstandes 1 optimale Übergabebedingungen bei der Übergabe der Bogen 7 von den Transportsaugern 6 an die Transportbänder 13 gegeben sind. In Figures 4 and 5, the path and speed profile of the transport suction 6 in the switching position I - so n sheet 7 on the belt table 2 - shown, in the transfer point Ü (in the embodiment at 90 ° Eintourenwelle) the transfer of the sheet 7 of the transport suckers 6 to the conveyor belts 13 takes place (Fig. 2 and 3).
In this transfer point Ü the speed ratios between the transport suckers 6 and the conveyor belts 12 are matched to each other and thus optimized the transfer conditions. Since, as shown in FIGS. 2 and 3, in the switching positions II and III of the gearbox 19.2 in the transfer point Ü the displacement and speed curves were changed, the path and speed curves of the transport suction 6 must be adjusted accordingly, which, as in the Figures 4 and 5 shown, by superimposition of the velocity profile V A at n sheet 7 with the initiated by the transmission 21 sinusoidal movement (Fig. 6) is realized. In the figure 7, the course of the speed W A of the drive 20 is shown and shown that the instantaneous speed in the transfer point Ü is the same regardless of the selected switching position I, II or III.
The gearbox 19.2 and the gear 21 realizing a sine-like output motion can be linked, so that in a parking action for both gears 19.2, 21 same switching levels are set.
Regardless of this, it is also possible to provide an electric motor 22 as the drive 19 and to assign the suction head 4 as the drive 20 to an electric motor 23. In known manner, the motors 22, 23 and thus the conveyor belts 13 and the suction head 4 via a computer and control unit 24 is clocked synchronously with the sheet-processing machine driven by the computer and control unit 24 synchronizing signals of the sheet processing machine are fed to a such a pitch is realized that n sheets 7 lie on the belt table 2 and the transfer conditions are optimized. By the computer and control unit 24, a sinusoidal drive of the conveyor belts 13 is also realized in a likewise known manner. By way of an input device 25, for example, in order to be able to change the graduation distance 1, eg a transmission ratio n +1 or n-1 is activated, whereby n + 1 sheet 7 or n-1 sheet 7 are provided on the belt table 2. The control and control device 24 is further associated with a memory 26 by speed profiles are stored, which the motor 23 of the suction head 4 follows and thus the transport suction 6 drives so that when changing the stagger spacing 1 optimal transfer conditions in the transfer of the sheet 7 of the transport suckers 6 are given to the conveyor belts 13.

Aufstellung der verwendeten BezugszeichenList of used reference numbers

11
Bogenanlegersheet feeder
22
Bändertischbelt table
33
Vordermarkefront lay
44
Saugkopfsuction head
55
Trennsaugersuction separator
66
Transportsaugertransport sucker
77
Bogenbow
88th
Bogenstapelsheet pile
99
Tischblechtable sheet
1010
BogenförderrichtungSheet conveying direction
1111
Bänderwalzebands roll
1212
Bänderwalzebands roll
1313
Transportbandconveyor belt
1414
Umlenkrolleidler pulley
1515
Spannrolleidler
1616
Schwinganlageswing feeder
1717
Anlegtrommelfeed drum
1818
Taktwalzetiming roller
1919
Antriebdrive
19.119.1
Übertragungsgetriebetransmission gear
19.219.2
Schaltgetriebemanual transmission
2020
Antriebdrive
2121
Getriebetransmission
2222
erster Elektromotorfirst electric motor
2323
zweiter Elektromotorsecond electric motor
2424
Rechner- und SteuereinheitComputer and control unit
2525
Eingabegerätinput device
2626
SpeicherStorage
II
Schaltstellungswitch position
IIII
Schaltstellungswitch position
IIIIII
Schaltstellungswitch position
nn
Anzahl von Bogen 7 auf dem Bändertisch 2Number of sheets 7 on the belt table 2
SB S B
Weg der Transportbänder 13Way of conveyor belts 13
ST S T
Weg der Transportsauger 6 Way the transport suction 6
VB V B
Geschwindigkeit der Transportbänder 13Speed of conveyor belts 13
VT V T
Geschwindigkeit der Transportsauger 6Speed of the transport suction 6
VA V A
ÜberlagerungsgeschwindigkeitOverlay speed
WA W A
Drehzahl des Antriebes 20Speed of the drive 20
ÜÜ
ÜbergabepunktTransfer point
11
StaffelabstandSeason distance

Claims (6)

  1. Equipment for feeding sheets (7) with separating suckers (5) arranged at a suction head (4) for cyclic separation of sheets (7) from a stack (8), with transport suckers (6) for transporting the sheets (7) in sheet conveying direction (10) to a belt table (2), which comprises transport belts (13) by which the sheets (7) are transported in imbricated form and subsequently fed to a sheet-processing machine, with a drive (20) for the suction head (4) as well as a drive (19) for the transport belts (13), which can be switched over for influencing the speed of the transport belts (13) and thus the echelon spacing (I) of the sheets (7), characterised in that for causing the speed (VT) of the transport suckers (6) to track the respectively selected speed (VB) of the transport belts (13) a sinusoidal superimposition speed (VA) can be superimposed on the drive (20) of the suction head (4).
  2. Equipment according to claim 1, characterised in that a transmission (21) realising a sinusoidal driven motion is associated with the drive (20).
  3. Equipment according to claim 1 and 2, characterised in that the transmission (21) is constructed as a wheel coupling transmission.
  4. Equipment according to claim 1 to 3, characterised in that a switching gear (19.2) disposed in operative connection with the transmission (21) is associated with the drive (19) of the transport belts (13).
  5. Equipment according to claim 1, characterised in that a first electric motor (22) is provided as drive (19) for the transport belts (13) and a second electric motor (23) is provided as drive (20) for the suction head (4), which are drivable by way of a regulating and control unit (24) synchronously in cycle with the sheet-processing machine, wherein for changing the echelon spacing (I) the speed of the drive (19) is formed to be settable by means of an input apparatus (25) associated with the regulating and control unit (24).
  6. Equipment according to claim 1 to 5, characterised in that speed courses, by which a drive control of the second electric motor (23) takes place for adaptation of the speed conditions in the case of transfer of the sheets (7) from the transport suckers (6) to the transport belts (13) at different echelon spacings (I), are filed in a memory (26) associated with the regulating and control unit (24).
EP01122532A 2000-10-25 2001-09-24 Sheet feeding device Expired - Lifetime EP1201577B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10052772 2000-10-25
DE10052772A DE10052772A1 (en) 2000-10-25 2000-10-25 Device for feeding sheets

Publications (3)

Publication Number Publication Date
EP1201577A2 EP1201577A2 (en) 2002-05-02
EP1201577A3 EP1201577A3 (en) 2004-01-28
EP1201577B1 true EP1201577B1 (en) 2005-12-07

Family

ID=7660937

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01122532A Expired - Lifetime EP1201577B1 (en) 2000-10-25 2001-09-24 Sheet feeding device

Country Status (2)

Country Link
EP (1) EP1201577B1 (en)
DE (2) DE10052772A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013101A1 (en) 2007-03-23 2008-09-25 Heidelberger Druckmaschinen Ag Sheet feeder with variable scale length and sheet arrival control

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1528021A1 (en) * 2003-11-03 2005-05-04 Bobst S.A. Feeder of a sheet-processing machine
DE102008036232A1 (en) 2008-08-02 2010-02-04 Koenig & Bauer Aktiengesellschaft Sheet supplying method for sheet processing machine, involves attaching belt single drive to belt table, and changing shingle distance depending on operating speed of sheet processing machine
DE102008036139A1 (en) 2008-08-02 2010-02-04 Koenig & Bauer Aktiengesellschaft Method for feeding sheet from stack of sheets to front lays guided into path of sheet, involves providing sheet flap and band table in sheet feeder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH185166A (en) * 1937-08-25 1936-07-15 Kleim & Ungerer Sheet feeder.
JPS517405B2 (en) * 1972-04-14 1976-03-08
DE3544359C1 (en) * 1985-12-14 1987-05-27 Mabeg Maschb Gmbh Nachf Hense Sheet feeding apparatus
DE3736841A1 (en) * 1987-10-30 1989-05-11 Heidelberger Druckmasch Ag BOW FEEDER FOR ROTARY PRINTING MACHINES

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013101A1 (en) 2007-03-23 2008-09-25 Heidelberger Druckmaschinen Ag Sheet feeder with variable scale length and sheet arrival control
US7717420B2 (en) 2007-03-23 2010-05-18 Heidelberger Druckmaschinen Ag Apparatus for feeding sheets with variable overlap length and sheet arrival control and printing press having the apparatus
CN101269753B (en) * 2007-03-23 2013-05-08 海德堡印刷机械股份公司 Apparatus for feeding sheets with variable overlap length and sheet arrival control and printing press having the apparatus
DE102008013101B4 (en) 2007-03-23 2022-08-11 Heidelberger Druckmaschinen Ag Sheet feeder with variable shingle length and sheet arrival control

Also Published As

Publication number Publication date
DE50108295D1 (en) 2006-01-12
EP1201577A3 (en) 2004-01-28
EP1201577A2 (en) 2002-05-02
DE10052772A1 (en) 2002-05-08

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