EP1671908B1 - Apparatus for supplying a processing device with a transport stream of printing products - Google Patents

Abstract

The mechanism has first and second promoter located downstream with loading device and laterally adjustable guiding device (25,26) with guidance arrangement for guiding longitudinal axis after which printed products (6) are aligned along guidance arrangement. Guidance arrangement is fitted adjustably with longitudinal axis which is transverse to promotion direction of printed product.

Description

The invention relates to a device for feeding a processing device with printed products transported in a flow, consisting of a first conveyor and a downstream second conveyor having feed device, and a laterally adjustable guide elements having guide assembly for forming a related to the flow of the printed products longitudinal central axis, after the printed products are aligned along the guide arrangement.

Devices of the type mentioned are used to load investor magazines with printed products in companies of print finishing. Print products are to be understood as products such as printed sheets, cards, CD / DVD-ROM, flat product samples, etc., which are delivered in the form of rods and whose dimensions can vary within a wide format range.

The function of the scaling is based, for example, on the friction principle. As is known, the coefficient of friction is between two Surfaces dependent on their surface condition and subject to considerable variability. Since the color distribution on a printed page is usually irregular, this additionally results in that the coefficient of friction within the area of a printed product can not be regular. A large proportion of the printed products has a fold on at least one edge or, for other reasons, is not the same thickness on the entire surface. This results in an irregular force distribution, which also leads to an irregular distribution of frictional forces. In order to limit the influence of the aforementioned irregularities on a measure required for proper functioning, the printed sheets are aligned centrally with the conveyors and the second conveyor is only effective in the area of dandruff formation in a narrow, central section. The first conveyor consists of at least one driven circulating conveyor, such as chains, belts or toothed belts. The conveying direction is slightly inclined approximately horizontally or in the direction of travel. The second conveyor also consists of at least one driven revolving conveyor, such as chains, belts or toothed belts. Alternatively, the conveyor may be designed as a roller conveyor consisting of a plurality of driven rollers.

The first and second conveyors are drive-connected. This can be achieved by a built-in between the conveyor gears or with separate drives that are connected via a common control.

Due to the ratio of the speeds of the two conveyors to each other, inevitably results in the thickness of the flow rate in the second conveyor. The ratio is preferably set so that there are no gaps between the printed products, but that overlap at least each 2 printed products and as continuous as possible Schuppenstrom arises.

Since the dimensions of the printed products to be processed can vary in all three dimensions, both the magazines of the print finishing machines, as well as the feeders are designed format adjustable.

1. a) Die Verstellung erfolgt symmetrisch (Mitte fix)
2. b) Die Verstellung erfolgt ausschliesslich links (rechte Kante fix)
3. c) Die Verstellung erfolgt ausschliesslich rechts (linke Kante fix)

The manner of the format adjustment transversely to the conveying direction of the charging device is determined by the operation of the print finishing machine to be loaded. There are three known cases:

1. a) The adjustment is symmetrical (middle fixed)
2. b) The adjustment is made exclusively on the left (right edge fixed)
3. c) The adjustment is made exclusively on the right (left edge fixed)

Prior art feeders are symmetrical with respect to the format adjustment transverse to the direction of conveyance. Case a) is covered. For cases b) and c), however, the entire conveyor must be moved laterally so that the longitudinal center axis of the flow and the center axis of the products in the magazine of the print finishing machine cover. This is basically possible, but associated with a great expenditure of energy and time, since the charging device must be firmly connected to the ground during operation.

Furthermore, it is conceivable to switch between the loading device and the magazine of the print finishing machine an alignment, which pushes the printed products laterally in the correct position. However, this solution is technically complicated and procedurally uncertain. In addition, an additional space would be required to fulfill the function in the conveying direction.
It is also conceivable to divide the feeding device into a fixed lower part and a lower part which can be displaced with respect to this. However, this simple solution has the serious disadvantage that the system in the transverse direction would take up more space, so that the space required for the operation of the system space between adjacent feeders would be installed.

The pre-published DE 202 15 218 U relates to a bar feeder for printed products, with a frame, which is associated with a landing area, and a connect in the conveying direction to the landing area, obliquely rising upward ascending conveyor. In the investment area is designed as a feeder conveyor with two side guides for the printed products, which is adjustable in inclination to the ascending conveyor.

The US Pat. No. 5,197,590 describes a device for forming front stacking of superimposed printed products, which are previously lined up transported on a feeder and then transferred on a rising conveyor section in a scale formation, from which they fall into a Paketbildner.

The one Stacker, especially a cross-stacker for forming stacks of printed products mediating older US Pat. No. 6,120,239 arranges a feed section of the printed products arranged at the side of the printed products about vertical axes circumferential guide belts, the lateral distance is adjustable together with outer feed belts by spindles.

The DE 102 29 322 A1 Treats a device for the separation of printed products of a scale flow in a series of spaced printed products. For this purpose, a first conveyor and this downstream second conveyor is provided at a higher speed, between which a Abscheschungsvorrichtung is anbeordnet.

Object of the present invention is to provide a stationary feed device that can feed while maintaining the reliability of a feed device according to the prior art, symmetrically across the conveying direction as well as unilaterally adjustable magazines of Druckweiterverarbeitungsanlagen. In addition, the conversion of the operating mode should be done in a simple manner and without replacement of parts.

This object is achieved according to the invention in a charging device of the type mentioned in that the guide arrangement with respect to the longitudinal central axis transversely to the conveying direction of the printed products and the guide elements of the guide assembly are symmetrically formed to the longitudinal central axis adjustable.

Fig. 1

eine Seitenansicht einer Beschickungsvorrichtung,

Fig. 2

eine Draufsicht auf die Beschickungsvorrichtung (ohne Druckprodukte) gemäss Fig. 1,

Fig. 3

eine umreifte Stange aus Druckprodukten,

Fig. 4

die Beschickungsvorrichtung gemäss Fig. 2 mit in der Längsmittelachse angeordnetem Förderstrom der Druckprodukte mit maximalem Querformat A,

Fig. 5

die Beschickungsvorrichtung nach Fig. 2 mit in der Längsmittelachse angeordnetem Förderstrom der Druckprodukte mit kleinem Querformat a,

Fig. 6

die Beschickungsvorrichtung nach Fig. 2 mit in Förderrichtung an einer rechten Kante geführten Druckprodukten mit kleinem Querformat a,

Fig. 7

die Beschickungsvorrichtung nach Fig. 2 mit in Förderrichtung an einer linken Kante geführten Druckprodukten mit kleinem Querformat a,

Fig. 8

eine Verstelleinrichtung der Beschickungsvorrichtung für die Verarbeitung von Druckprodukten mit maximalem Querformat A in der Längsmittelachse des Förderstroms,

Fig. 9

die Verstelleinrichtung nach Fig. 8 für die Verarbeitung von Druckprodukten mit kleinem Querformat a in der Längsmittelachse des Förderstroms,

Fig. 10

die Verstelleinrichtung nach Fig. 8 für die Verarbeitung von an einer rechten Kante geführten Druckprodukten mit kleinem Querformat a und

Fig. 11

die Verstelleinrichtung nach Fig. 8 für die Verarbeitung von an einer linken Kante geführten Druckprodukten mit kleinem Querformat a.

The invention will be explained below with reference to the drawing, to which reference is made with respect to all details not mentioned in the description, using an exemplary embodiment. In the drawing show:

Fig. 1

a side view of a charging device,

Fig. 2

a plan view of the feeder (without printed products) according to Fig. 1 .

Fig. 3

a strapped bar of printed products,

Fig. 4

the charging device according to Fig. 2 with arranged in the longitudinal central axis flow of the printed products with maximum horizontal format A,

Fig. 5

the charging device according to Fig. 2 with arranged in the longitudinal central axis flow of the printed products with a small horizontal format a,

Fig. 6

the charging device according to Fig. 2 with printed in the conveying direction at a right edge printed products with a small horizontal format a,

Fig. 7

the charging device according to Fig. 2 with printed articles with a small horizontal format a guided in the conveying direction on a left edge,

Fig. 8

an adjusting the loading device for the processing of printed products with maximum horizontal format A in the longitudinal center axis of the delivery flow,

Fig. 9

the adjustment after Fig. 8 for the processing of printed products with a small horizontal format a in the longitudinal central axis of the conveying stream,

Fig. 10

the adjustment after Fig. 8 for processing right edge printed products of small landscape format a and

Fig. 11

the adjustment after Fig. 8 for processing left-edge printed products of small landscape format a.

The Fig. 1 and Fig. 2 show a feeder 1, which has a first conveyor 2 and a second conveyor 3 of a feeder, and a processing device 4, the magazine 5 is fed by the feeder 1 with printed products 6.

The printed products 6 are usually delivered in the form of rods 40.

A rod 40 is according to Fig. 3 from a long stack of stationary printed products 6, which has at both ends to protect the printed products 6 end boards 41 made of wood, plastic or similar materials and is strapped with at least one band 42. The printed products 6 are flat, usually on all sides Printed objects having 43 folds 44 at side edges.

The rods 40 are preferably placed on the first conveyor 2 of the feeder 1 with a hoist, not shown, respectively. connected to the rear end in the processing direction of the already located on the first conveyor 2 dissolved rod and the strap 42 and the end boards 41 removed. In order to support the rearmost printed products 6, a supporting device (not shown) which can be moved in the conveying direction is provided.

If the printed products 6 are delivered in the form of light rods or in loose stacks, the settling can also be done manually.

• Erste umlaufende Fördermittel 19, die an einem Träger 7 befestigt sind und auf denen die Druckprodukte 6 auf einer Seitenkante 43 stehend in die Richtung des Richtungspfeils 16 zum zweiten Förderer 3 transportiert werden;
• eine seitliche Führung 8,9 zur Positionierung der Druckprodukte 6 während dem Absetzen der Stangen 40 und dem Transportieren der Druckprodukte 6 durch die Fördermittel 19.
• seitliche, mit etwa der gleichen Geschwindigkeit wie die Fördermittel 19 in Förderrichtung anschliessende seitliche Förderorgane 10,11, zwischen denen die Druckprodukte 6 transportiert werden können;
• Förderelement 12 und Führungsorgane 17,18 zur Unterstützung der die Druckprodukte 6 weitertransportierenden Förderorgane 10,11. Die Geschwindigkeit des Förderelementes 12 ist mindestens annähernd so hoch wie die Geschwindigkeit der Förderorgane 10,11;
• ein nicht dargestelltes Antriebssystem, das mit den Förderorganen 10,11 und Führungsorganen 17,18 sowie den Fördermitteln 19 verbunden ist und diese mit den für ihre Funktion erforderlichen Geschwindigkeiten in der Richtung des Pfeiles 16 antreibt.
  Ein solches Antriebssystem könnte beispielsweise aus einem mechanischen Getriebe mit mehreren Ausgängen, die mit jeweils einem Fördermittel 10,11,17,18,19 verbunden sind und einem Elektromotor bestehen, der das mechanische Getriebe antreibt. Dem Elektromotor kann eine elektronische Steuerung vorgelagert sein, mit deren Hilfe es möglich ist, die Geschwindigkeit des ersten Förderers stufenlos zu verändern. Es ist möglich, anstelle eines zentralen elektrischen Antriebes elektrische Einzelantriebe, die steuerungsmässig miteinander verbunden sind, einzusetzen.

The printed products 6 are now on a side edge 43 in the first conveyor 2, which essentially has the following organs:

• First circulating conveyors 19 fixed to a carrier 7 and on which the printed products 6 are transported on one side edge 43 upright in the direction of the directional arrow 16 to the second conveyor 3;
• a lateral guide 8,9 for positioning the printed products 6 during the settling of the rods 40 and the transport of the printed products 6 by the conveyor 19th
• lateral, with approximately the same speed as the conveyor 19 in the conveying direction subsequent lateral conveying members 10,11, between which the printed products 6 can be transported;
• Conveying element 12 and guide members 17,18 to support the printed products 6 further conveying conveyor members 10.11. The speed of the conveying element 12 is at least approximately as high as the speed of the conveying elements 10, 11;
• an unillustrated drive system, which is connected to the conveying members 10,11 and guide members 17,18 and the conveyor means 19 and drives them with the required speeds for their function in the direction of the arrow 16.
  Such a drive system could for example consist of a mechanical transmission with multiple outputs, which are each connected to a conveyor 10,11,17,18,19 and an electric motor, which drives the mechanical transmission. The electric motor may be preceded by an electronic control, with the help of which it is possible to vary the speed of the first conveyor steplessly. It is possible, instead of a central electric drive electrical individual drives that are connected to each other in terms of control, use.

To the first conveyor 2, the second conveyor 3 closes increasingly. The conveying planes of the two conveyors form an obtuse angle α. The second conveyor 3 forms from the stack taken over by the first conveyor 2 in the direction of the arrow 16, a printed product 6 which is shingled in the conveying direction according to arrow 32.

• Einem (unteren) Fördersystem 15, das die durch den ersten Förderer 2 zugeführten Druckprodukte 6 im Bereich ihrer Längsmittelachse mittels Reibung erfasst und in das Magazin 5 fördert. Im Ausführungsbeispiel besteht das (untere) Fördersystem 15 im Bereich der Schuppenbildung aus einen ersten Förderabschnitt 49 bildenden Bändern 27,28 und einem anschliessenden einen zweiten Förderabschnitt 48 bildenden Fördermittel 14, das als breites Band ausgebildet ist. Anstelle eines breiten Bandes könnte das Fördermittel 14 auch aus mehreren parallelen Bändern bestehen.
• Ein oberes Förderteil 50 bildende Bänder 30,31, die die Druckprodukte 6 gegen das Fördersystem 15 halten, wobei das Förderteil 50 und Fördersystem 15 mit gleicher Geschwindigkeit angetrieben sind. Das Fördersystem 15 erstreckt sich bis zum Magazin 5, in welchem die geförderten Druckprodukte 6 gestapelt abgelegt werden.

The second conveyor 3 consists essentially of the following components:

• A (lower) conveyor system 15, which supplied by the first conveyor 2 printed products 6 in the region of their Longitudinal axis detected by friction and promotes in the magazine 5. In the exemplary embodiment, the (lower) conveyor system 15 in the region of the flaking consists of a first conveyor section 49 forming ribbons 27,28 and a subsequent second conveyor section 48 forming conveyor 14, which is formed as a broad band. Instead of a wide band, the conveyor 14 could also consist of several parallel bands.
• An upper conveyor part 50 forming bands 30,31, which hold the printed products 6 against the conveyor system 15, wherein the conveyor member 50 and conveyor system 15 are driven at the same speed. The conveyor system 15 extends to the magazine 5, in which the conveyed printed products 6 are stored stacked.

Fig. 4 shows the charging device 1 after Fig. 2 in the processing of printed products 6 with maximum landscape format A and Fig. 5 in the processing of printed products with a small horizontal format a respectively approximately in the longitudinal center axis of the device. This means that independently of each of the transverse formats A, A, the longitudinal center axes of the printed products 6 resp. cover the flow and the feeder 1.

This can be achieved by the left guide member 25 and the right guide member 26, which together form a guide assembly 45, each by half the displacement v ₁ = v _r = (Aa) / 2 are adjusted in opposite directions. The left in the conveying direction guide member 25 is formed by the carrier 21 and attached to this funding 10,17 and the left lateral guide 8. The right in the conveying direction guide member 26 is supported by the carrier 22 and attached thereto 11,18 and the right side guide 9 formed. The carriers 21, 22 are displaceably mounted on the rails 23, 24 fixedly connected to the machine frame 39. The conveyor means 29 consisting of the carrier 7 and attached to this conveying means 12,19 is also mounted on the rails 23,24; in this mode, however, fixedly positioned relative to the machine frame 39.

In Fig. 6 is the feeder 1 in the mode with fixed edge right, shown at a setting on a smaller landscape a. When setting to a maximum landscape A, the positions of the guide elements 25,26 are the same as in a central mode according to Fig. 4 , When setting to a smaller landscape a is according to Fig. 6 only the left guide element 25 by the total difference v ₁ =

Aa postponed. In addition, the conveying member 29 is shifted by half the difference v _m = (Aa) / 2. It is thereby achieved that the longitudinal center axis 46 of the products with transverse format a remains identical to the central axis of the conveying member 29, which is located in the middle of the two guide elements 25,26. The carrier 7 is like the carrier 21,22 mounted laterally displaceable on the rails 23,24 and can be fixed in the setting corresponding to the maximum dimension A to the machine frame.

In Fig. 7 the feeder 1 is shown in the mode with fixed edge left at a setting on a smaller landscape a. The operation is analogous to the mode with fixed edge right, with the difference that now the right guide member 26 is laterally displaced by the total difference Aa and the left guide member 25 remains in the same position.

In Fig. 8 an adjusting device is shown in the position for processing a product with the maximum landscape format A. In the carrier 7 drivingly connected spindles 37,38 are mounted, each having on one side a left and on the opposite side each have a right-hand thread. The threaded sections of the spindles 37, 38 extend into the nuts 33, 34, 35, 36 of the carriers 21, 22 belonging to the guide elements 25, 26. The spindles 37, 38 can be driven manually or by a motor, with the guide elements 25, 26 each approaching or removing relative to the carrier 7, depending on the direction of rotation. In the case of a central adjustment, the carrier 7 is fixedly connected to the rails 23, 24 on which the carriers 21, 22 can slide. The connection between the carriers 7,21,22 and the rails 23,24 may be designed as a simple clamping connection, but there are also electrically, pneumatically or hydraulically operated systems conceivable.

In Fig. 9 the situation is shown in central mode and a position for processing a smaller landscape a. In order to achieve this position, the guide elements 25, 26 have each moved by v _r = v ₁ = (Aa) / 2.

In Fig. 10 For example, the situation is shown with the fixed edge mode right and a position for processing a smaller landscape a. The starting position was the same as in the central mode for processing products 6 with maximum horizontal format A. In this position, the carrier 22 is connected to the rails 23,24 and the carrier 7 and the carrier 21 can be moved on the rails 23,24 , The adjustment for the guide member 25 is v ₁ = Aa and for the carrier 7 of the conveying member 29 v _m = (Aa) / 2.

In Fig. 11 the situation is shown in the mode with fixed edge left to process a smaller landscape a. The The procedure is analogous to the operating mode with fixed edge on the right, but reversed.

Further, each carrier can be 7,21,22, each with adjustable by mounted in the machine frame 39 separate spindles, which are driven by hand or by motor. The travel paths dependent on the operating mode and the format are preferably calculated in the machine control and shown as set values in a display device or delivered to adjusting drives.

Claims (9)

1. Device (1) for feeding printed products (6) transported in a stream to a processing device (4), said device (1) consisting of a feed unit comprising a first conveyor (2) and a second conveyor (3) arranged downstream thereof, and a guide arrangement (45) comprising laterally adjustable guide elements (25, 26) forming a longitudinal centre axis (46) in relation to the conveyed stream of printed products (6) with which the printed products (6) are aligned along the guide arrangement (45), characterised in that the guide arrangement (45) is designed to be adjustable relative to the longitudinal centre axis (46) transversely to the conveying direction of the printed products (6) and the guide elements (25, 26) of the guide arrangement (45) are designed to be adjustable symmetrically relative to the longitudinal centre axis (46).
2. Device according to claim 1, characterised in that the second conveyor (3) is formed of a fixed conveying section (48) and an ascending conveying section (49) arranged upstream thereof in the conveying direction.
3. Device according to claim 2, characterised in that the upstream conveying section (49) is aligned centrally with the longitudinal centre axis (46) of the printed products (6).
4. Device according to claim 2 or claim 3, comprising a conveying member of the first conveyor arranged centrally between the guide elements (25, 26), characterised in that the upstream conveying section (49) is adjustably connected to the conveying member (29).
5. Device according to one of claims 2 to 4, comprising a conveying means (50) acting on the conveyed stream of printed products along the second conveyor (3), characterised in that the conveying means (50) is adjustably connected to the conveying member (29).
6. Device according to one of claims 1 to 5, characterised in that the longitudinal centre axis (46) of the conveyed stream (47) is formed by a support (7) connected to a machine frame (39) and adjustable transversely to the conveying direction by means of a spindle drive (51).
7. Device according to claim 6, characterised in that the support (7) or one of the guide elements (25, 26) can be locked to the machine frame (39).
8. Device according to one of claims 1 to 7, characterised in that one of the guide elements (25, 26) in each case is aligned with the processing device (4).
9. Device according to one of claims 1 to 8, characterised in that the spindle drives (37, 38) for adjusting the support (7) or the guide elements (25, 26) are operatively connected to a controlled servo motor.

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