EP0806389B1 - Device for forwarding a stream of overlapping sheets - Google Patents
Device for forwarding a stream of overlapping sheets Download PDFInfo
- Publication number
- EP0806389B1 EP0806389B1 EP97105895A EP97105895A EP0806389B1 EP 0806389 B1 EP0806389 B1 EP 0806389B1 EP 97105895 A EP97105895 A EP 97105895A EP 97105895 A EP97105895 A EP 97105895A EP 0806389 B1 EP0806389 B1 EP 0806389B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suction
- sheet
- distance
- conveyor table
- suction box
- 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
Links
- 239000003570 air Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
- B65H11/00—Feed tables
- B65H11/002—Feed tables incorporating transport belts
- B65H11/005—Suction 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
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/32—Suction belts
- B65H2406/322—Suction distributing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/32—Suction belts
- B65H2406/322—Suction distributing means
- B65H2406/3223—Suction distributing means details of the openings in the belt, e.g. shape, distribution
Definitions
- the invention relates to a device for conveying a scaled in particular Stroms from sheet to a sheet processing machine, with a conveyor table that is provided with at least one endless conveyor belt which can be driven all around it, with a vacuum box under the conveyor table, which is pressurized is connected to the underside of the conveyor belt via suction openings in the conveyor table, which is provided with continuous suction holes.
- suction belt tables the general lies Problem in that the first and the last sheet must be transported safely.
- the promotion of a shingled stream of sheets on the suction belt table can be divide it into three phases.
- the first phase can be characterized in that the first Sheet that is pushed onto the suction belt by a separating device, should be sucked onto the perforated conveyor belt with as little slip as possible.
- the suction power is fundamentally reduced by that only a certain area of the conveyor belt is covered by the first sheet and thus a lot of incorrect air is sucked in, so that the suction effect is limited.
- the third phase of the promotion of a shingled arc stream concerns the promotion the last arc of the shingled stream.
- This bow is about his entire length sucked onto the conveyor belt and is therefore much stronger on the Conveyor belt fixed when the partially overlapping sheets of the scaled Arc current.
- the overlapping of the individual sheets causes the sheets are only in contact with the conveyor belt with a fraction of their surface and are therefore subject to a lower suction effect.
- the last sheet remains its transport against the front brands, the one prevailing in the vacuum belt table Exposed to negative pressure, the front edge of the last sheet can on the one hand Front marks pressed in or, on the other hand, the lateral alignment is not insignificant be hindered.
- DE 44 16 289 A1 is a device for conveying a particular scaled stream of sheets to a sheet processing machine known.
- the at DE 44 16 289 A1 provided suction box is in by means of profiles arranged therein individual suction chambers divided so that they are further away from the suction source Arranged areas can apply an effective vacuum, which is not due to the Influence of leaks is influenced.
- DE-A 11 81 240 is a device for conveying sheets to an arc processing machine with a suction channel known, the two spaced apart Suction openings are assigned. The cross section of the suction channel is over the entire Transport route constant.
- the invention has for its object a device for conveying a in particular to create shingled stream of arches, in which also the first and the last sheet to be processed is transported safely.
- the advantage of the invention is in particular that in the invention Single chamber suction box a small space-saving size can be realized.
- suction sources e.g. blowers
- low power can be used.
- a particular advantage is that a complex subdivision of the Suction box seen in several in the sheet transport direction, arranged one behind the other Chambers is not necessary.
- a conveyor table 1 is provided with two parallel conveyor belts 2 running around it between a stack 4 and alignment means 6 in the form of front marks 7 and / or Side marks 8 arranged.
- the conveyor belts 2 are by means of a deflecting roller 9 and Belt drive roller 11 deflected, this a non-slip, z. B. rubberized surface having.
- the conveyor belts 2 have through openings 12 and one coated underside 13 with a small coefficient of friction.
- the described Embodiment has two conveyor belts 2, as is the sheet transport large format sheets required.
- Conveyor tables 1 can be used with only one conveyor belt 2 if they are correspondingly small Sheet formats are to be processed.
- the openings 12 of the conveyor belts 2 are in the sheet transport direction (arrow) guided over the conveyor table 1 that they are in register with openings 14 at the Top 16 of the conveyor table 1 arrive.
- the openings 12, 14 connect the top of the conveyor belts 2, each with one arranged under the conveyor table 1 Suction chamber 17 of a one-chamber suction box 18.
- Each suction box 18 has two - in Sheet transport direction seen - spaced apart Suction ports 19, 21.
- a cross-sectional area A of the suction port 19; 21 is the same size as a cross-sectional area B of the suction box 18.
- a distance A of the rear, i.e. H. seen first in the sheet transport direction Suction port 19 of upstream funding, in the form of Belt drive roller 11 in cooperation with an arranged clock roller 22, is equal to the smallest preselectable scale length 1 (e.g. 200 mm).
- a distance b of the front, d. H. seen in the sheet transport direction - second suction port 21, of the Front marks 7 correspond at most to the length of the smallest format.
- the Suction ports 19 and 21 are in an outer side wall of the suction box 18 attached and by means of air hoses 23 to 26 provided with a housing 27 connected.
- a suction source in the form of a radial fan 28 is attached to the housing 27 flanged.
- Inside the housing 27 there is a pivotably arranged one Air-guiding flap 29 is arranged, which is infinitely variable from a first end position I into a second end position II is transferable.
- a remotely controllable control element in the form of a working cylinder 31 provided, which engages with its piston rod 32 on the air guide flap 29.
- the air guide flap 29 is brought into the first end position I, so that the total suction power of the radial fan 28 switched to the rear suction port 19 is.
- a first sheet 33 of the clock roller 22 and with this interacting belt drive roller 11 so far in the sheet transport direction (arrow) transported until the leading edge of the sheet 33 the suction port 19th covered.
- a is covered in the area covered by the sheet 33 Vacuum in the suction chamber 17 of the suction box 18 according to the diagram in FIG. 1 generated. This has the effect that the first sheet 33 to be transported is already safely on the Conveyor belt 12 is sucked.
- the second and the further sheets 33 are now from the Transport elements 11,22 continuously transported in cycles until a flow is formed from shingled arches 33, the conveyor table 1 and thus the Fully covers openings 12 of the conveyor belt 2.
- the position of the air guide flap 29 can here assume both the first and the second end positions I; II. It is also possible that any other position is continuously set between the end positions.
- the air guide flap 29 spent in the second end position II.
- the suction air source is turned off. Now ambient air can come on the rear edge of the sheet 33 flow into the suction chamber 17 of the suction box 18. This causes the suction force on the underside of the sheet 33 to decrease and only in a small area between the suction port 21 and the start 34 of the suction box 18th is effective. By this measure, the bow 33 can be easily laterally Align the transport direction.
- suction box 18 in to provide its front area with a variably adjustable suction chamber 17.
- the bottom of the suction box 18 is designed as a pivotable flap 36, wherein the pivot point is in the area of the front suction opening 21.
- a length L of Flap 36 is designed so that a distance c between the front marks 7 and End 37 of the flap 36 is larger than the largest format length to be processed Sheet 33.
- Swiveling the flap 36 leads to an increase in the suction space in the front Area and favors the ventilation of the suction box 18 during transportation of the last one processing bow.
Landscapes
- Delivering By Means Of Belts And Rollers (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen zu einer bogenverarbeitenden Maschine, mit einem Fördertisch, der mit mindestens einem endlosen, ihn umlaufend antreibbaren Transportband versehen ist, mit einem unter dem Fördertisch angeordneten, unterdruckbeaufschlagten Saugkasten, der über Saugöffnungen im Fördertisch mit der Unterseite des Transportbandes verbunden ist, welches mit durchgehenden Sauglöchern versehen ist.The invention relates to a device for conveying a scaled in particular Stroms from sheet to a sheet processing machine, with a conveyor table that is provided with at least one endless conveyor belt which can be driven all around it, with a vacuum box under the conveyor table, which is pressurized is connected to the underside of the conveyor belt via suction openings in the conveyor table, which is provided with continuous suction holes.
Bei derartigen Vorrichtungen, sogenannten Saugbändertischen, liegt das allgemeine Problem darin, daß auch der erste und der letzte Bogen sicher transportiert werden muß. Die Förderung eines geschuppten Bogenstromes auf dem Saugbändertisch läßt sich hierbei in drei Phasen unterteilen.In such devices, so-called suction belt tables, the general lies Problem in that the first and the last sheet must be transported safely. The promotion of a shingled stream of sheets on the suction belt table can be divide it into three phases.
Die erste Phase läßt sich dadurch charakterisieren, daß bei Maschinenanlauf der erste Bogen, der von einer Vereinzelungsvorrichtung auf das Saugband geschoben wird, möglichst schlupfarm auf das gelochte Transportband angesaugt werden soll. In dieser Phase des Maschinenbetriebes ist die Saugkraft jedoch grundsätzlich dadurch gemindert, daß nur ein gewisser Bereich des Transportbandes durch den ersten Bogen abgedeckt wird und somit sehr viel Fehlluft angesaugt wird, so daß die Saugwirkung begrenzt ist.The first phase can be characterized in that the first Sheet that is pushed onto the suction belt by a separating device, should be sucked onto the perforated conveyor belt with as little slip as possible. In this However, the suction power is fundamentally reduced by that only a certain area of the conveyor belt is covered by the first sheet and thus a lot of incorrect air is sucked in, so that the suction effect is limited.
In der zweiten Phase, nämlich der Förderung des geschuppten Bogenstromes, die etwa dem stationären oder eingeschwungenen Zustand des Systems entspricht, herrschen konstante Betriebsbedingungen, weswegen diese zweite Phase als unproblematisch einzustufen ist.In the second phase, namely the promotion of the shingled arc stream, which is about corresponds to the stationary or steady state of the system constant operating conditions, which is why this second phase as unproblematic is classified.
Die dritte Phase der Förderung eines geschuppten Bogenstromes betrifft die Förderung des letzten Bogens des geschuppten Bogenstromes. Dieser Bogen wird über seine gesamte Länge auf das Transportband gesaugt und ist somit wesentlich stärker auf dem Transportband fixiert, als die sich teilweise überlappenden Bogen des geschuppten Bogenstromes. Bei diesem bewirkt das Überlappen der einzelnen Bögen, daß die Bögen nur mit einem Bruchteil ihrer Fläche mit dem Transportband in Kontakt stehen und demzufolge einer geringeren Ansaugwirkung unterworfen sind. Bleibt der letzte Bogen bei seinem Transport gegen die Vordermarken, dem im Saugbändertisch herrschenden Unterdruck ausgesetzt, so kann einerseits die Vorderkante des letzten Bogens an den Vordermarken eingedrückt oder andererseits die seitliche Ausrichtung nicht unerheblich behindert werden.The third phase of the promotion of a shingled arc stream concerns the promotion the last arc of the shingled stream. This bow is about his entire length sucked onto the conveyor belt and is therefore much stronger on the Conveyor belt fixed when the partially overlapping sheets of the scaled Arc current. In this case, the overlapping of the individual sheets causes the sheets are only in contact with the conveyor belt with a fraction of their surface and are therefore subject to a lower suction effect. The last sheet remains its transport against the front brands, the one prevailing in the vacuum belt table Exposed to negative pressure, the front edge of the last sheet can on the one hand Front marks pressed in or, on the other hand, the lateral alignment is not insignificant be hindered.
Durch die DE 44 16 289 A1 ist eine Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen zu einer bogenverarbeitenden Maschine bekannt. Der bei der DE 44 16 289 A1 vorgesehene Saugkasten ist mittels darin angeordneter Profile in einzelne Saugkammern aufgeteilt, damit auch in den weiter von der Saugquelle entfernt angeordneten Bereichen ein wirksames Vakuum anstehen kann, welches nicht durch den Einfluß von Leckagen beeinflußt wird.DE 44 16 289 A1 is a device for conveying a particular scaled stream of sheets to a sheet processing machine known. The at DE 44 16 289 A1 provided suction box is in by means of profiles arranged therein individual suction chambers divided so that they are further away from the suction source Arranged areas can apply an effective vacuum, which is not due to the Influence of leaks is influenced.
Durch die DE-A 11 81 240 ist eine Vorrichtung zum Fördern von Bogen zu einer Bogen verarbeitenden Maschine mit einer Saugrinne bekannt, der zwei voneinander beabstandete Saugöffnungen zugeordnet sind. Der Querschnitt der Saugrinne ist über die gesamte Transportstrecke konstant.DE-A 11 81 240 is a device for conveying sheets to an arc processing machine with a suction channel known, the two spaced apart Suction openings are assigned. The cross section of the suction channel is over the entire Transport route constant.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Fördern eines insbesondere geschuppten Stroms von Bogen zu schaffen, bei dem auch der erste und der letzte zu verarbeitende Bogen sicher transportiert wird.The invention has for its object a device for conveying a in particular to create shingled stream of arches, in which also the first and the last sheet to be processed is transported safely.
Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs
1 gelöst.The object is achieved by the characterizing features of the
Der Vorteil der Erfindung liegt insbesondere darin, daß beim erfindungsgemäßen Einkammer-Saugkasten eine geringe platzsparende Baugröße verwirklicht werden kann. The advantage of the invention is in particular that in the invention Single chamber suction box a small space-saving size can be realized.
Durch diesen einfachen, kleinvolumigen Aufbau eines jedem Transportband zugeordneten Saugkastens, können Saugquellen (z. B. Gebläse) mit kleiner Leistung eingesetzt werden. This simple, small-volume structure of each conveyor belt Suction box, suction sources (e.g. blowers) with low power can be used.
Ein besonderer Vorteil liegt auch darin, daß eine aufwendige Unterteilung des Saugkastens in mehrere in Bogentransportrichtung gesehen, hintereinander angeordnete Kammern nicht notwendig ist.A particular advantage is that a complex subdivision of the Suction box seen in several in the sheet transport direction, arranged one behind the other Chambers is not necessary.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im
folgenden beschrieben.
Es zeigen:
- Fig. 1
- eine schematische Seitenansicht eines Saugbänder-Fördertisches im Schnitt beim Einlauf des ersten zu verarbeitenden Bogens,
- Fig. 2
- eine schematische Seitenansicht des Saugband-Fördertisches nach Fig.1 im Schnitt bei voll abgedecktem Fördertisch,
- Fig. 3
- eine schematische Seitenansicht des Saugbänder-Fördertisches nach fig.1 im Schnitt bei Anlage des letzten zu verarbeitenden Bogens an den Vordermarken,
- Fig. 4
- eine schematische Draufsicht auf den Saugbänder-Fördertisch,
- Fig.
- 5 eine schematische Seitenansicht des erfindungsgemäßen Saugbänder-Fördertisches im Schnitt.
Show it:
- Fig. 1
- 1 shows a schematic side view of a suction belt conveyor table in section at the entry of the first sheet to be processed,
- Fig. 2
- 2 shows a schematic side view of the suction belt conveyor table according to FIG. 1 in section with the conveyor table fully covered,
- Fig. 3
- 1 shows a schematic side view of the suction belt conveyor table according to FIG. 1 in section when the last sheet to be processed is applied to the front marks,
- Fig. 4
- a schematic plan view of the suction belt conveyor table,
- FIG.
- 5 shows a schematic side view of the suction belt conveyor table according to the invention in section.
Ein Fördertisch 1 ist mit zwei ihn umlaufenden parallel angeordneten Transportbändern 2
zwischen einem Stapel 4 und Ausrichtmitteln 6 in Form von Vordermarken 7 und/oder
Seitenmarken 8 angeordnet.A conveyor table 1 is provided with two
Die Transportbänder 2 werden mittels einer Umlenkwalze 9 und einer
Bänderantriebswalze 11 umgelenkt, wobei diese eine griffige, z. B. gummierte Oberfläche
aufweist. Die Transportbänder 2 weisen durchgehende Öffnungen 12 und eine
beschichtete Unterseite 13 mit kleinem Reibungskoeffizienten auf. Das beschriebene
Ausführungsbeispiel weist zwei Transportbänder 2 auf, wie es der Bogentransport
großformatiger Bögen erfordert. Selbstverständlich ist die Erfindung auch an
Fördertischen 1 mit nur einem Transportband 2 einsetzbar, wenn entsprechend kleine
Bogenformate zu verarbeiten sind.The
Die Öffnungen 12 der Transportbänder 2 werden in Bogentransportrichtung (Pfeil ) derart
über den Fördertisch 1 geführt, daß diese in Deckung mit Öffnungen 14 an der
Oberseite 16 des Fördertisches 1 gelangen. Die Öffnungen 12,14 verbinden die Oberseite
der Transportbänder 2 mit jeweils einem unter dem Fördertisch 1 angeordneten
Saugraum 17 eines Ein-Kammer-Saugkastens 18. Jeder Saugkasten 18 weist zwei - in
Bogentransportrichtung gesehen - voneinander beabstandete
Sauganschlüsse 19, 21 auf. Eine Querschnittsfläche A des Sauganschlußes 19;21 ist
genauso groß wie eine Querschnittsfläche B des Saugkastens 18.The
Ein Abstand A des hinteren, d. h. in Bogentransportrichtung gesehen ersten
Sauganschlusses 19 von vorgeordneten Fördermitteln, in Form der
Bänderantriebswalze 11 in Zusammenwirken mit einer angeordneten Taktwalze 22, ist
gleich der kleinsten vorwählbaren Schuppenlänge 1 (z. B. 200 mm). Ein Abstand b des
vorderen, d. h. in Bogentransportrichtung gesehen - zweiten Sauganschlusses 21, von den
Vordermarken 7 entspricht höchstens der Länge des kleinsten Formates. Die
Sauganschlüsse 19 und 21 sind in einer äußeren Seitenwand des Saugkastens 18
angebracht und mittels vorgesehener Luftschläuche 23 bis 26 mit einem Gehäuse 27
verbunden. An das Gehäuse 27 ist eine Saugquelle in Form eines Radialgebläses 28
angeflanscht. Innerhalb des Gehäuses 27 ist eine schwenkbar angeordnete
Luft-Leit-Klappe 29 angeordnet, welches stufenlos von einer ersten Endstellung I in eine
zweite Endstellung II verbringbar ist.A distance A of the rear, i.e. H. seen first in the sheet transport
Zu diesem Zweck ist ein fernbedienbares Stellelement in Form eines Arbeitszylinders 31
vorgesehen, welcher mit seiner Kolbenstange 32 an der Luft-Leit-Klappe 29 angreift.For this purpose, a remotely controllable control element in the form of a working
Zunächst wird die Luft-Leit-Klappe 29 in die erste Endstellung I verbracht, so daß die
gesamte Saugleistung des Radialgebläses 28 auf den hinteren Sauganschluß 19 geschaltet
ist. Daraufhin wird ein erster Bogen 33 von der Taktwalze 22 und der mit dieser
zusammenwirkenden Bandantriebswalze 11 soweit in Bogentransportrichtung (Pfeil)
transportiert, bis die vorauslaufende Kante des Bogens 33 den Sauganschluß 19
überdeckt. Hierdurch wird in dem Bereich der von dem Bogen 33 abgedeckt ist, ein
Unterdruck im Saugraum 17 des Saugkastens 18 entsprechend dem Diagramm in Fig. 1
erzeugt. Dieser bewirkt, daß der erste zu transportierende Bogen 33 bereits sicher auf das
Transportband 12 angesaugt wird.First, the
Der zweite und die weiteren Bögen 33 werden nunmehr von den
Transportelementen 11,22 fortlaufend taktweise weitertransportiert, bis ein Förderstrom
aus unterschuppt angeordneten Bögen 33 gebildet ist, der den Fördertisch 1 und damit die
Öffnungen 12 des Transportbandes 2 vollständig abdeckt. Hierbei ergibt sich ein
konstanter Unterdruck im gesamten Saugraum 17 des Saugkastens 18, wie er in dem
; Diagramm der Figur 2 dargestellt ist. Die Stellung der Luft-Leit-Klappe 29 kann hierbei
sowohl die erste, als auch die zweite Endstellung I;II einnehmen. Es ist auch möglich, daß
stufenlos eine zwischen den Endstellungen beliebige andere Stellung eingestellt wird.The second and the further sheets 33 are now from the
Vor dem Transport des letzten zu verarbeitenden Bogens 23 wird die Luft-Leit-Klappe 29
in die zweite Endstellung II verbracht. Beim Anschlag des letzten Bogens 33 an den
Vordermarken 7, wird die Saugluftquelle abgestellt. Nunmehr kann Umgebungsluft an
der Hinterkante des Bogens 33 in den Saugraum 17 des Saugkastens 18 einströmen. Diese
bewirkt, daß die Saugkraft auf die Unterseite des Bogens 33 nachläßt und nur noch in
einem kleinen Bereich zwischen Sauganschluß 21 und Anfang 34 des Saugkastens 18
wirksam ist. Durch diese Maßnahme läßt sich der Bogen 33 leicht seitlich zur
Transportrichtung ausrichten.Before the
Bei dem erfindungsgemäßen Saugbänder-Fördertisch (Fig. 5) ist es vorgesehen, den Saugkasten 18 in
seinem vorderen Bereich mit einem variabel verstellbaren Saugraum 17 zu versehen. In the suction belt conveyor table according to the invention (FIG. 5) it is provided that the
Hierbei ist der Boden des Saugkastens 18 als schwenkbare Klappe 36 ausgebildet, wobei
der Schwenkpunkt im Bereich der vorderen Saugöffnung 21 liegt. Eine Länge L der
Klappe 36 ist so ausgelegt, daß ein Abstand c zwischen den Vordermarken 7 und dem
Ende 37 der Klappe 36 größer ist, als die größte zu verarbeitende Formatlänge des
Bogens 33.Here, the bottom of the
Ein Abschwenken der Klappe 36 führt zu einer Saugraumvergrößerung im vorderen
Bereich und begünstigt die Belüftung des Saugkastens 18 beim Transport des letzten zu
verarbeitenden Bogens. Swiveling the
- 11
- Fördertischconveyor table
- 22
- Transportbandconveyor belt
- 3 43 4
- Bogenstapelsheet pile
- 5 65 6
- Ausrichtmittelalignment
- 77
- Vordermarkefront lay
- 88th
- Seitenmarkepage brand
- 99
- Umlenkwalzedeflecting
- 10 1110 11
- BandantriebswalzeCapstan
- 1212
- Öffnungen (2)Openings (2)
- 1313
- Unterseite (2)Bottom (2)
- 1414
- Öffnungen (1,16)Openings (1.16)
- 15 1615 16
- Oberseite (1)Top (1)
- 1717
- Saugraum (18)Suction chamber (18)
- 1818
- Saugkastensuction box
- 1919
- Sauganschlußsuction
- 20 2120 21
- Sauganschlußsuction
- 2222
- Taktwalzetiming roller
- 2323
- Luftschlauchair hose
- 2424
- Luftschlauchair hose
- 2525
- Luftschlauchair hose
- 2626
- Luftschlauchair hose
- 2727
- Gehäuse casing
- 2828
- Radialgebläsecentrifugal blower
- 2929
- Luft-Leit-KlappeAir guide flap
- 30 3130 31
- Arbeitszylinderworking cylinder
- 3232
- Kolbenstangepiston rod
- 3333
- Bogenarc
- 3434
- Anfang (18)Early (18)
- 35 3635 36
- Klappeflap
- 3737
- Ende (36)End (36)
- AA
- Querschnittsfläche (19;21)Cross-sectional area (19; 21)
- BB
- Querschnittsfläche (18)Cross-sectional area (18)
- aa
- Abstand (19-22)Distance (19-22)
- bb
- Abstand (21-7)Distance (21-7)
- cc
- Abstand (7-37)Distance (7-37)
- ll
- Schuppenlängeshingle length
- LL
- Länge (36)Length (36)
- II
- erste Endstellung (29)first end position (29)
- IIII
- zweite Endstellung (29)second end position (29)
Claims (8)
- Device for conveying a stream of sheets, in particular shingled sheets, to a sheet-processing machine, the device having a conveyor table (1), which is equipped with at least one endless transport belt (2) drivable so as to revolve around the conveyor table and provided with openings (12) passing through the transport belt, and with a suction box which is arranged underneath the conveyor table, to which a vacuum is appliable, and which is connected to the lower side of the transport belt via suction openings (14) provided in the conveyor table, with each transport belt (2) being assigned a single suction box (18) consisting of a single suction space (17) and with the suction box (18) having at least two suction connections (19, 21) spaced apart from each other as viewed in the direction of sheet transport,
characterized in that a front region of the suction box (18) has a suction space with an enlarged cross-section and volume. - Device according to one of the preceding claims,
characterized in that the front suction connection (21) facing the sheet-processing machine is arranged at a distance (b) from provided alignment means (7, 8), the distance (b) corresponding at most to the format length of the smallest sheet to be processed. - Device according to one of the preceding claims,
characterized in that the suction stud (19) arranged in a rear region facing away from the sheet-processing machine is arranged at a distance (a) from the sheet pile (4) which corresponds to the smallest shingle length (1) to be processed. - Device according to one of the preceding claims,
characterized in that a vacuum is appliable to the suction connections (19, 21) and that a respective one of the suction connections (19, 21) is switchable off. - Device according to one of the preceding claims,
characterized in that a switchable air guide flap (29) is provided. - Device according to one of the preceding claims,
characterized in that the suction box (18) has a cross-section (B) corresponding to the cross-section (A) of a suction connection (19; 21). - Device according to one of the preceding claims,
characterized in that a flap (36) arranged pivotably is provided to enlarge the suction space. - Device according to one of the preceding claims,
characterized in that the suction space enlargement is arranged at a distance (c) from the front lays (7), the distance (c) being greater than the length of the format to be processed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19618870A DE19618870A1 (en) | 1996-05-10 | 1996-05-10 | Device for conveying an in particular flaky stream of sheets to a sheet processing machine |
| DE19618870 | 1996-05-10 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0806389A2 EP0806389A2 (en) | 1997-11-12 |
| EP0806389A3 EP0806389A3 (en) | 1998-12-09 |
| EP0806389B1 true EP0806389B1 (en) | 2002-07-24 |
Family
ID=7793951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97105895A Expired - Lifetime EP0806389B1 (en) | 1996-05-10 | 1997-04-10 | Device for forwarding a stream of overlapping sheets |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5951007A (en) |
| EP (1) | EP0806389B1 (en) |
| JP (1) | JPH1045309A (en) |
| DE (2) | DE19618870A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575450B2 (en) | 2001-01-30 | 2003-06-10 | Lockheed Martin Corporation | Singulation mechanism |
| DE10129007C1 (en) * | 2001-06-15 | 2002-10-17 | Roland Man Druckmasch | Feed system for paper sheets, to a sheet-fed printing press, has controlled deflection rollers at the suction belt to act on the sheets moving over the kinked transfer point between the feed plane and the belt |
| DE10146919C1 (en) * | 2001-09-24 | 2003-05-15 | Koenig & Bauer Ag | Device for aligning sheets arranged one above the other in a layer |
| DE10229322A1 (en) * | 2002-06-29 | 2004-01-15 | Kolbus Gmbh & Co. Kg | Device for separating a shingled stream of printed products into a sequence of spaced-apart printed products |
| DE102004015335A1 (en) * | 2004-03-30 | 2005-10-20 | Koenig & Bauer Ag | Apparatus for feeding a scaly arc stream |
| JP2006082923A (en) * | 2004-09-15 | 2006-03-30 | Canon Inc | Sheet processing apparatus and image forming apparatus having the same |
| JP5111155B2 (en) * | 2008-02-26 | 2012-12-26 | デュプロ精工株式会社 | Paper discharge device |
| US12311632B2 (en) | 2022-09-14 | 2025-05-27 | Intpro, Llc | Warp detection in traveling corrugated product |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE713529C (en) * | 1938-11-05 | 1941-11-13 | Koenig Werk G M B H Maschf | Sheet conveying device, especially on sheet feeders for letterpress and similar machines |
| DE1176672B (en) * | 1962-08-29 | 1964-08-27 | Johannisberg Ges Mit Beschraen | Back bow delivery on printing machines |
| DE1181240B (en) * | 1963-10-15 | 1964-11-12 | Mabeg Maschb G M B H Nachf Hen | Feed table for sheet feeder |
| DE2502668A1 (en) * | 1975-01-23 | 1976-07-29 | Mueller Forst C Kg | Lifting and removing veneer sheets from stack - sheets held by suction on bottom surface of conveyor and transferred |
| DE3331662A1 (en) * | 1983-09-02 | 1985-03-28 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | METHOD AND DEVICE FOR FITTING A CUSTOM SHEET INTO A PRINTING MACHINE |
| DE3903389A1 (en) * | 1989-02-04 | 1990-08-09 | Mabeg Maschinenbau Gmbh Nachf | Device for conveying a stream of sheets |
| DE4013302A1 (en) * | 1990-04-26 | 1991-10-31 | Koenig & Bauer Ag | DEVICE FOR PROMOTING A PARTICULAR DIVIDED FLOW FROM ARC |
| DE4108397C2 (en) * | 1991-03-15 | 1995-09-21 | Roland Man Druckmasch | Device for forming a sequence of objects that overlap |
| DE4203511A1 (en) * | 1992-02-07 | 1993-08-12 | Roland Man Druckmasch | DEVICE FOR PROMOTING A SCALED FLOW CURRENT TO A BOW PROCESSING MACHINE |
| DE4314756C2 (en) * | 1993-05-05 | 1995-02-23 | Vits Maschinenbau Gmbh | Device for shedding and depositing sheets on a stack |
| DE4416286C2 (en) * | 1994-05-07 | 1999-10-28 | Heidelberger Druckmasch Ag | Device for adjusting the negative pressure in a suction belt feed table of a sheet feeder |
| DE4416289C2 (en) * | 1994-05-07 | 2003-06-05 | Heidelberger Druckmasch Ag | Device for conveying a shingled stream of sheets |
-
1996
- 1996-05-10 DE DE19618870A patent/DE19618870A1/en not_active Withdrawn
-
1997
- 1997-04-10 EP EP97105895A patent/EP0806389B1/en not_active Expired - Lifetime
- 1997-04-10 DE DE59707763T patent/DE59707763D1/en not_active Expired - Fee Related
- 1997-05-08 JP JP9117703A patent/JPH1045309A/en not_active Ceased
- 1997-05-12 US US08/854,373 patent/US5951007A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| US5951007A (en) | 1999-09-14 |
| JPH1045309A (en) | 1998-02-17 |
| EP0806389A3 (en) | 1998-12-09 |
| DE19618870A1 (en) | 1997-11-13 |
| DE59707763D1 (en) | 2002-08-29 |
| EP0806389A2 (en) | 1997-11-12 |
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