EP2055660A1 - Device for metered redirection of flat objects - Google Patents

Abstract

The apparatus has a pair of circumferentially mounted deflection members (26, 26') i.e. conveyor pulleys, provided at distance from an outlet of a feed conveyor (10) i.e. telescopic belt conveyor. The deflection members form a transport gap, where planar objects (12) e.g. newspaper, are transported through the transport gap. The deflection members act synchronously with a cycle of the objects supplied from a passage gap into the gap. A stop is provided downstream of a passage gap in feed direction for leading edges (16) of respective object in feed direction. An independent claim is also included for a method for conveying planar objects.

Description

The present invention relates to a device for conveying flat objects, in particular of printed products resulting in an imbricated formation, according to the preamble of patent claim 1.

A device of this kind is for example from the patents CH 617 408 and US 4,201,377 known. A feed conveyor is followed by a conveyor running at an angle to this. The outlet of the feed conveyor is arranged on one side of the removal conveyor and at a distance from the outlet of the feed conveyor above the removal conveyor associated therewith at least one revolving deflecting member which forms with the removal conveyor a tapering in the feed direction of the feed conveyor and in the same direction to the Wegförderrichtung the removal conveyor effective conveying gap. The device is particularly suitable for conveying printed products obtained in a scale flow, since the scale flow is maintained, while only the orientation of the individual printed products changes in the scale flow.

Next is from the EP 0 718 226 A a Zuführ-deflecting device for at least partially folded newspapers and magazines, in which the feed direction of the newspapers is deflected by 90 °. The device comprises a pair of stop cylinders and a pair of acceleration cylinders which are substantially in a plane but at an angle of 90 ° to each other. They are provided with sector-shaped approaches to the Newspaper or the magazine to keep pressed between them when the approaches of both cylinders of the cylinder pairs are located on a line between the central axes. By means of the stop cylinder, the respective newspaper or magazine is locked or stopped by controlled deceleration of the cylinders in such a way that no slippage of the newspapers takes place between the pair of stop cylinders. The pair of acceleration cylinders grips the side edge of the newspaper or the magazine seen in the feed direction at the moment when the newspaper or the magazine is stopped by means of the pair of stop cylinders. This feeding deflecting device is exclusively suitable for the processing of newspapers or magazines accumulating one behind the other at a distance.

It is an object of the present invention to develop the generic device such that the resulting objects are redirected clocked.

This object is achieved with a device having the features of patent claim 1. A deflecting member and a further deflecting member acting together form a passage gap through which the respective supplied object with its leading edge can be conveyed against a stop. This ensures that the object occupies a defined position. Synchronized with the stroke of the feed conveyor, the two deflecting members for the respective object abutting against the stop form a conveying gap in order to supply this to the removal conveyor. The objects are thus deflected in time with the feed conveyor and fed to the removal conveyor. Since the deflection organs grasp the respective object in an edge section adjoining the leading edge, is the promotion and clocked deflection of resulting in a scaly formation objects, in particular printed products, allows.

Preferred embodiments of the device according to the invention are evident from the dependent claims.

Fig. 1

in Draufsicht eine erfindungsgemässe Vorrichtung, bei welcher ein Zuförderer und ein Wegförderer in einem rechten Winkle zueinander verlaufen;

Fig. 2

in Draufsicht eine weitere Ausführungsform der erfindungsgemässen Vorrichtung, bei welcher der Zuförderer und der Wegförderer in einem Winkel von ungleich 90° zueinander angeordnet sind;

Fig. 3

in Seitenansicht und teilweise geschnitten den als teleskopierbarer Bandförderer ausgebildeten Zuförderer und eine Umlenkeinrichtung; und

Fig. 4

in Ansicht die Umlenkeinrichtung und einen Teil des Wegförderers.

The invention will be described with reference to embodiments illustrated in the drawings. It shows purely schematically:

Fig. 1

in plan view of an inventive device in which a feed conveyor and a removal conveyor in a right angle to each other;

Fig. 2

in plan view, another embodiment of the inventive device in which the feed conveyor and the removal conveyor are arranged at an angle of not equal to 90 ° to each other;

Fig. 3

in side view and partially cut the trained as a telescoping belt conveyor feeder and a deflection device; and

Fig. 4

in view of the deflection and a part of the conveyor.

FIG. 1 shows in plan view a first embodiment of an inventive device during operation. It has a feed conveyor 10 which is intended to supply flat objects 12, in the present case printed products such as newspapers, magazines or the like, in the feed direction Z to a deflection device 14. The objects 12 are arranged in an imbricated formation S, in which the objects 12 rest in an imbricated manner on the respectively preceding object and the edge 16 of the objects leading in the feed direction Z runs at least approximately at right angles to the feed direction Z. The distance K between the leading edges 16 of successive objects 12 is at least approximately constant, so that at a certain conveying speed v1 of the feed conveyor 10 per work cycle in each case an object 12 of the deflecting device 14 is supplied. The feed conveyor 10 is driven continuously and supplies the deflection device 14 clocked with objects 12.

The deflecting device 14 has a stop 20 formed by a stop bar 18 for the leading edge 16 of the articles 12. The stop bar 18 extends at right angles to the feed direction Z and thus at least approximately parallel to the leading edge 16 of the supplied articles 12 and is arranged at a distance A to the outlet 22 of the feed conveyor 10 which is at least the same size as the measured in the feed direction Z extent (length) L of the objects. Preferably, the distance A is for example 5 to 10% larger than the extension L.

Furthermore, the deflection device 14 has two Umlenkorganpaare 24, 24 ', which - seen in the feed direction Z - at a distance B from the outlet 22 and upstream of the stop bar 18 are arranged. The distance B is preferably slightly smaller than the extent L of the objects 12.

Each Umlenkorganpaar 24, 24 'has two in the vertical direction superimposed disc-like deflecting members 26, 26', which are rotatably mounted about parallel to the feed direction Z and thus perpendicular to the leading edge 16 of the articles 12 extending axes of rotation 28. As will be described below, the deflecting members 26, 26 'of each deflection pair 24, 24', tuned to the timing of the fed from the feeder 10 objects 12 and starting from a passage gap, in the same direction with the Wegförderrichtung W of a conveyor 30 effective conveying gap , The feed conveyor 10 and the removal conveyor 30 are arranged at an angle α of 90 ° to each other, so that the feed direction Z and the Wegförderrichtung W at a right angle to each other. The inlet 32 of the removal conveyor 30 is, seen in the removal direction W, downstream of the deflecting device 14 and at such a distance to the removal conveyor 30 side facing edge 34 in the feed direction Z of the deflector 14 supplied articles 12 that they are not affected by the deflection 14 from Outfeed conveyor 30 can be influenced.

Both the feed conveyor 10 and the removal conveyor 30 is designed as a belt conveyor with which two weight rollers 36 cooperate at the outlet 22 or inlet 32.

The supplied in the working cycle of the deflector 14 objects 12 are deflected after striking the stop 20 by means of Umlenkorganpaaren 24, 24 'and fed in Wegförderrichtung W the removal conveyor 30, wherein the articles 12 maintain a parallel position to itself. Due to the deflection is thus the Side edge 34 to the leading edge. Since the removal conveyor 30 is driven continuously and at a conveying speed v2 adapted to the feed speed v1 and the objects 12 are deflected in a clocked manner by means of the deflection device 14, a again regular, clocked scale flow S 'is formed.

The dashed arrow W 'indicates that the removal conveyor 30, viewed in the feed direction Z, can be arranged on the other side in order to remove the deflected objects 12 in the removal direction W', which is opposite to the removal direction W. Of course, the directions of rotation of the deflecting members 26 are reversed. It is also conceivable to provide two removal conveyors 30, one of which is effective in the removal direction W and the other in the removal direction W '. This makes it possible, depending on the effective direction of the deflection device 14, to carry away the deflected objects 12 in the removal direction W or W '.

In the case of the objects 12 shown in solid lines, the extent L is greater than the width measured at right angles to the feed direction Z. However, it is also possible to process rectangular objects 12 whose extent L is smaller than the width, as with the dot-dashed printed products 12 'is indicated. For the adaptation to the formats of the objects 12 to be processed, the distances A, B between the outlet 22 of the feed conveyor 10 and the stop 20 or the deflecting members 26 are adjustable.

FIG. 2 shows in the same representation as FIG. 1 an inventive device in which the angle α ' or α '' between the feed direction Z and the Wegförderrichtung W, W 'is smaller or larger than 90 °. The flat objects 12 are in turn clocked by means of the feed conveyor 10 in an imbricated formation S fed to the deflection device 14. The leading edge 16 of the objects 12 is oriented parallel to the Wegförderrichtung W or Wegförderrichtung W 'and parallel to the stop bar 18; it thus also includes with the feed direction Z an angle which corresponds to the angle α 'or α ". The objects 12 are thus conveyed in a kind of "diagonal scale" S, wherein the mutually corresponding corners of the flat objects 12 lie on straight lines which extend in the feed direction Z. By the deflection of the "diagonal scale" a normal scale flow S 'is formed, in which in turn the earlier side edge 34 is the leading edge, which is perpendicular to the Wegförderrichtung W. In addition to the inclination of the deflecting device 14 with respect to the feed direction Z and their distance to the outlet 22 of the feed conveyor 10 is set accordingly.

Also at the in FIG. 2 In embodiments shown, the feed conveyor 10 and the removal conveyor 30 are preferably designed as belt conveyors. In order to enable the outlet 22 or inlet 32, which runs obliquely with respect to the feed direction Z or the removal direction W, the belt of the belt conveyors can be formed by parallel bands 38, 38 ', which guide rollers are mounted in a staggered manner in accordance with the inclination in the feed direction Z or removal direction W are. This offset is based on the appropriately stored and with the Ribbon 38, 38 'cooperating weight rollers 36 can be seen. Incidentally, in the FIG. 2 shown device works the same way and works in the same way as the embodiment in FIG. 1 ,

Trained as a belt conveyor feeder 10 preferably has two or more parallel guided ribbon 38, of which in FIG. 3 one is visible. This is on, seen in the feed direction Z, upstream end of the feed conveyor 10 to a rotatably mounted on a machine frame 40 and driven by an electric motor 42 drive roller 44 out. From the drive roller 44, the ribbon 38 extends in the feed direction Z, forming the active strand 46, to an outlet roller 48 arranged at the outlet 22 and about 180 ° around it. Subsequently, the band 38 is S-shaped to a first compensating roller 50 and second compensating roller 52 out. From this, the ribbon 38 extends to a guide roller 54, which ensures that the ribbon is applied to the drive roller 44 with a large Umschliessungswinkel. While the drive roller 44, the second compensating roller 52 and the deflecting roller 54 are fixedly mounted on the machine frame 40, the outlet roller 48 and the first compensating roller 50 are freely rotatably mounted on a carriage 56, which is displaceably arranged on the machine frame 40 in and counter to the feed direction Z. , The feeder 10 is in the in the FIG. 3 shown embodiment designed as a telescoping belt conveyor to adjust the position of the outlet 22 relative deflecting device 14 as a function of the extent L of the processed flat objects 12 can.

The weight rollers 36 cooperating with the ribbon 38 in the region of the outlet rollers 48 are each freely rotatably mounted on the free end of a lever 58, which at the other end is freely pivotably mounted on a bearing axis 60. The bearing axis 60 spans the feed conveyor 10 and is fastened on both sides to a plate 62 projecting upward from the carriage 56.

The weight rollers 36 roll on the top of the articles 12 and ensure that they are transported to the release at the outlet 22 without slip from the feed conveyor 10.

Between the feed conveyor 10 and the deflecting device 14 extends horizontally a support plate 64 which forms a stationary support surface 64 'for the articles 12. Thus, the friction between the released by the feeder 10 and the deflector 14 supplied object 12 - this is in FIG. 3 flat on the support plate 64 on - and the subsequent object 12 can be minimized, the support surface 64 'is preferably at a distance below the outlet 22 so that there forms a falling step in the conveying path. This also helps to keep the friction of the objects 12 with the support plate 64 low, so that each released at the outlet 22 object 12 safely reaches its leading edge 16 on the stop 20 forming stop bar 18 to the plant. This is also supported by the respective following, resting object 12; thanks to the imbricated formation S, a movement away of the objects 12 from the stop 20 against the feed direction Z is prevented.

In the end region facing the feed conveyor 10, the support plate 64 has recesses 66 into which the carriage 56 can telescope with the outfeed rollers 48. Further recesses on the support plate 64 are provided at the deflection device 14 in order to allow a passing through the respective further underlying deflecting members 26 'of the two Umlenkorganpaare 24, 24'.

As this particular from the FIG. 4 shows, each of Umlenkorganpaare 24, 24 'an upper deflecting member 26 and a lower further deflecting member 26' on. The deflecting members 26 and further deflecting members 26 'are designed as circular conveyor disks 68, with these two diametrically opposite segments are excluded.

In the example shown and seen in view, the two overhead deflecting members 26 are driven in a clockwise direction and the lower further deflecting members 26 in a counterclockwise direction. The drive takes place continuously and synchronously by means of a further electric motor 42 '. In the in FIG. 4 In the rotational position shown by the solid lines, they form a much narrower conveying gap 72, in which the each with its leading edge 16 on the stop 20 fitting object 12 preferably without slippage in an edge portion 74 adjacent to the leading edge 16 - see also FIG. 1 - recorded and kept.

In order to obtain the greatest possible friction between the cylinder jacket section-shaped actively conveying surfaces 76 of the conveyor disc 68, in the in FIG. 4 shown embodiment, the underlying conveyor discs 68 shell side a relatively soft coating 78 with respect to the objects to be conveyed 12 high coefficient of friction. Preferably, the pad 78 is relatively thick and the lining 78 carrying part of the conveyor disc 68 is formed correspondingly smaller in diameter. This guarantees a secure hold of the articles 12 in the conveying gap 72 and at the same time a smooth running of the device. The different thickness of the formed scale formation S 'can be recorded with low noise and without damaging the objects 12.

The deflecting members 26 and further deflecting members 26 'are each mounted on the front side of a, coaxial with the respective axis of rotation 28, drive shaft 80 which in turn mounted on a bearing plate 82 of the machine frame 40 bearings 84 are mounted parallel axis (see also Fig. 3 ). On the drive shafts 80 sit non-rotatably drive wheels 86 to which drive belt 88 are guided. These are connected directly or via a reverse gear to the further electric motor 42 '.

For the sake of completeness, it should be mentioned that the stop bar 18 is fastened to the support plate 64 and, viewed in the feed direction Z, is arranged downstream of the deflecting members 26 or the respective conveyor discs 68 and between them and a protective wall 90 of the machine frame 40 which is penetrated by the drive shafts 80. The conveying gap 72 is effective in the removal direction W of the removal conveyor 30.

The removal conveyor 30 is preferably of the same design as the delivery conveyor 10 and driven by the further electric motor 42 '. In the FIG. 4 are of the removal conveyor 30 of the sake of clarity, only one of the outlet roller 48 of the feeder 10 corresponding, freely rotatably mounted on the carriage 30 of the transport conveyor inlet roller 48 ', around which a ribbon 38' is guided, and the relevant with this ribbon 38 'cooperating Weight roller 36 shown. Of course, the bands 38 ', compared to the feed conveyor 10, the Wegförderer 30 in the opposite direction W and continuously driven with the Wegfördergeschwindigkeit v2. The electric motors 42, 42 'are, in a known manner, synchronized with each other in the desired phase position.

Above the support plate 64 may, as Fig. 3 shows, an inlet plate 92 may be arranged, which together with the support plate 64 forms a narrowing inlet gap for the deflecting device 14 to be supplied to articles 12. Next, the support plate 64 the recesses 66 according to further recesses for the removal conveyor 30.

In FIG. 4 is denoted by β the angle of rotation, over which a Umlenkorganpaar 24, 24 'respectively forms the conveying gap 72 for the deflected and the Wegförderrichtung 30 to be supplied object 12. The peripheral speed of the deflecting members 26, further deflecting members 26 'or conveying discs 68 corresponds to the conveying speed v2 of the removal conveyor 30. The functioning of the apparatus is as follows:

The sheet-like objects 12 are fed in a regular scale formation S by means of the feed conveyor 10 in the machine cycle of the deflection device 14. Within a machine cycle, the deflecting members 26 and further deflecting members 26 'make a rotation through 180 ° in the in the FIG. 4 indicated by arrows directions of rotation. While the deflecting members 26 and further deflecting members 26 'form the passage gap 70, in each case an object 12 with its leading edge 16 ahead, between the deflecting members 26 and other deflecting members 26' passes therethrough until it with its leading edge 16 on by the stop bar 18th formed stop 20 comes to rest and is braked to a standstill. The phase position of the deflecting members 26 and further deflecting members 26 'relative to the feed conveyor 10 is set such that the conveying gap 72 is formed as possible at the time, moreover, the subject object 12 comes to rest on the stop 12. Once the conveying gap 72 is formed, the article 12 is accelerated very quickly to the conveying speed of the removal conveyor 30 and clocked in Wegförderrichtung W supplied to this.

It is also conceivable to exclude only a single segment on the conveyor disks 68. In this case, however, the deflecting members 26 and further deflecting members 26 'must perform a complete rotation in each machine cycle, which means that the diameter of the conveyor discs 68 must be half as large as in the embodiment according to the FIG. 4 ,

Further, it is conceivable, the underlying conveyor discs 68 of the further deflecting members 26 'as solid discs, without weggetrennte segments, form and the conveyor discs 68 of the overhead deflecting 26 form with one or two weggetrennten segments.

It should be noted that it is also possible to form the conveyor discs 68 of both the deflecting members 26 and the other deflecting members 26 'as solid discs and conveyor discs 68 of Umlenkorganpaare 24, 24', in the machine cycle, towards each other and away from each other, at the smallest distance to form the conveying gap and at this enlarged distance the passage gap.

The inventive device also works with a single Umlenkorganpaar.

It is also possible to provide all conveyor discs 68 with a soft-elastic coating 78.

With the inventive device can be processed in addition to newspapers, magazines and the like also in the scale flow incurred single sheet and other flat objects. The objects 12 can also be isolated, with a mutual distance, conveyed and deflected. In this case, the isolated conveying away and the formation of a scale flow S 'is possible. Under flat object is also an object understood, which consists of two or more parts arranged on top of each other. If these have different formats, their leading edges are preferably adjacent to one another.

Claims (10)

Device for conveying flat objects (12), in particular of printed products obtained in an imbricated formation (S), having a feed conveyor (10), an infeed conveyor (Z) running at an angle (α, α ', α'') to its feed direction (Z) 30) and at least one at a distance (B) from the outlet (22) of the feed conveyor (10) arranged peripherally mounted deflecting member (26) for forming an in the same direction with the Wegförderrichtung (W) of the removal conveyor (30) effective conveying gap (72) characterized by a circumferentially mounted further deflecting member (26 ') which, together with the deflecting member (26), synchronously with the cycle of the conveyed objects (12) and starting from a passage gap (70), the conveying gap (72) and then again the passage gap (70 ) and a stop (20) arranged in the feed direction (Z) downstream of the passage gap (70) for the edge (16) of the respective object (12) leading in the feed direction (Z). Apparatus according to claim 1, characterized in that the deflecting member (26) and further deflecting member (26 ') are driven continuously. Apparatus according to claim 1 or 2, characterized in that the deflecting member (26) and the further deflecting member (26 ') are formed as conveyor discs (68) and at least on one of the conveyor discs (68), for forming the passage gap (70), a Segment is excluded. Apparatus according to claim 3, characterized in that on each conveyor disc (68) are excluded two diametrically opposed segments. Device according to one of claims 1 to 4, characterized in that at least the deflecting member (26) or further deflecting member (26 ') is provided on the shell side with a soft elastic covering (78). Device according to one of claims 1 to 5, characterized in that the distance (A) between the outlet (22) of the feed conveyor (10) and the stop (20) at least in the feed direction (Z) measured extent (L) of the objects ( 12). Device according to one of claims 1 to 6, characterized in that the feed conveyor (10) and the removal conveyor (30) are designed as telescopic belt conveyors. Device according to one of claims 1 to 7, characterized in that two pairs (24, 24 ') of deflecting member (26) and further deflecting member (26') in the removal direction (W) are arranged one behind the other. Device according to one of claims 1 to 8, characterized in that between the outlet (22) of the feed conveyor (10) and the deflecting members (26, 26 ') a stationary support surface (64') for the articles (12) is present. Method for conveying flat objects (12), in particular printed products arising in an imbricated formation (S), in which the Objects (12) by means of a feed conveyor (10) in the feed direction (Z) to a from the outlet (22) of the feed conveyor (10) at a distance (B) arranged deflecting member (26) supplied and by means of the formation of a co-direction with the Wegförderrichtung (W ) of an angle (α, α ', α'') to the feed conveyor (30) extending conveying conveyor (30) effective conveying gap (72) serving deflecting member (26) are deflected, characterized in that the objects (12) with their in the feed direction (Z) leading edge (10) through a by the deflecting member (26) and a further deflecting member (26 ') formed by passage gap (70) through, against a stop (20) and then conveyed by means of, in synchronism with the cycle of conveyed objects ( 12) forming the conveying gap (72) deflecting member (26) and further deflecting member (26 ') in an adjacent to the leading edge (16) adjacent edge portion (74) and the removal conveyor (30) are supplied.

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