EP0901977A1 - Device for rotating articles arriving in shingled formation - Google Patents

Abstract

The device has a roller (22) engaging on a product (14) at a product stop (18). The roller pivot axis (22'') is approx. at right angles to the conveying direction of the conveyor belt (10) and tangents the stop. A belt-like supply feeder is located in front of the conveyor belt, and ends at a distance in front of the stop.

Description

The present invention relates to a device for Rotation of rectangular, resulting in a scale formation flat products, in particular printed products, according to the preamble of claim 1.

A device of this type is from the CH patent No. 637,900 known. One to the side of the incoming one Role formation arranged roll grips one corner each by bumping into one with respect to the Central axis of the incoming scale formation on which the Roll opposite side arranged stop the flake formation of the product. The Roll supports the further turning of both this product, as well as the subsequent one resting on it Products. Those leaving the effective range of the role Products are the result of between them and the belt conveyor existing friction around the stop as the turning center until they drive around the stop have and be carried away. Since with this known Set up unscrewing the one touching the stop Product from the scale formation in the Scope of the role and further turning after leaving this range of action solely from that between products and the existing belt conveyor depending on friction and the products for only a very short time Rotation range in the effective range of the role can increase reliability of the shooting process.

It is therefore an object of the present invention to further develop the known device such that at simple construction a reliable safe turning of the products is guaranteed in scale formation.

This task is done with a generic facility solved, the features in the characterizing part of claim 1 having. The roller arranged according to the invention forms together with the belt conveyor a conveyor gap in which the products at the moment of toasting at the stop until the end of the rotation. By working together between the belt conveyor and the roll a drive of the products ensures that a reliable complete rotation of the products around the Stop as a turning center. The role can be with a Peripheral speed to be driven, the Conveyor speed of the belt conveyor corresponds. This is not necessary, it can also be used as a freely rotating one Weight roll be formed.

Particularly preferred forms of training of the inventive Enable device according to claims 4, 5, 6 and 8 turning in a simple way of scales formed by gaps separated by gaps Products in one direction or another.

Further preferred forms of training of the inventive Means are in the further dependent claims Are defined.

Fig. 1

in Draufsicht einen Teil der erfindungsgemässen Einrichtung während des Drehens von Druckereiprodukten;

Fig. 2

in Draufsicht eine Ausbildungsform der erfindungsgemässen Einrichtung zum Drehen der Erzeugnisse nach links;

Fig. 3

in Draufsicht eine Ausbildungsform der erfindungsgemässen Einrichtung zum Drehen der Erzeugnisse nach rechts;

Fig. 4

eine Ausbildungsform der erfindungsgemässen Einrichtung zum Drehen der Erzeugnisse einer Schuppenformation, wahlweise nach links oder rechts, mit zwei umschaltbaren, nebeneinander angeordneten Anschlägen;

Fig. 5

in Ansicht eine weitere Ausbildungsform der erfindungsgemässen Einrichtung zum Drehen von in Schuppenformationen anfallenden Erzeugnissen, wahlweise nach links oder rechts, mit in Förderrichtung voneinander beabstandeten gesteuerten Anschlägen;

Fig. 6

in Draufsicht die in Fig. 5 gezeigte Ausbildungsform der erfindungsgemässen Einrichtung;

Fig. 7

in Ansicht eine weitere Ausbildungsform der erfindungsgemässen Einrichtung zum Drehen der in Schuppenformationen anfallenden Erzeugnisse, wahlweise nach links oder rechts, mit übereinander angeordneten Anschlägen;

Fig. 8

in Seitenansicht eine weitere Ausbildungsform der erfindungsgemässen Einrichtung zum Drehen der in Schuppenformationen anfallenden Erzeugnisse, wahlweise nach links oder rechts, mit symmetrisch angeordneten Rundläufen für ein Anschlag- und Führungselement; und

Fig. 9 bis 14

in Draufsicht die in der Fig. 8 gezeigte Ausbildungsform der erfindungsgemässen Einrichtung zu unterschiedlichen Zeitpunkten beim Umschalten von einer Drehrichtung auf die andere und Drehen der in einer Schuppenformation anfallenden Erzeugnisse.

The invention will now be explained in more detail with reference to exemplary embodiments shown in the drawing. It shows purely schematically:

Fig. 1

a top view of part of the device according to the invention during the rotation of printed products;

Fig. 2

a top view of an embodiment of the device according to the invention for rotating the products to the left;

Fig. 3

in plan view a form of training of the inventive device for rotating the products to the right;

Fig. 4

a training form of the inventive device for rotating the products of a scale formation, either to the left or right, with two switchable, side by side stops;

Fig. 5

in view a further embodiment of the device according to the invention for rotating products obtained in scale formations, optionally to the left or right, with controlled stops spaced apart in the conveying direction;

Fig. 6

5 shows a top view of the embodiment of the device according to the invention shown in FIG. 5;

Fig. 7

in view a further embodiment of the device according to the invention for rotating the products obtained in scale formations, optionally to the left or right, with stops arranged one above the other;

Fig. 8

in side view a further embodiment of the device according to the invention for rotating the products obtained in scale formations, optionally to the left or right, with symmetrically arranged rotations for a stop and guide element; and

9 to 14

In plan view, the embodiment of the device according to the invention shown in FIG. 8 at different times when switching from one direction of rotation to the other and rotating the products obtained in a scale formation.

In Fig. 1 is a in the conveying direction F with the speed v driven belt conveyor 10 with a dash-dotted line indicated. This line represents at the same time the central axis 12 of a scale formation represents in the printed products 14 accrued. Of this from the left promoted scale formation, in which in Direction of conveyance F seen the printed products 14th scale-like on the preceding one Print product 14 is only the foremost, fully visible printed product 14 shown, which with a leading edge 16 eccentrically abuts a stop 18. This is formed by a stop roller 20 ', which a perpendicular to the one defined by the belt conveyor 10 Axis 20 extending conveyor plane and for example is freely rotatable or driven. In Seen conveying direction F, the stop 18 is on the left side of the central axis 12 arranged such that the printed products 14 with the corresponding end region abut the leading edge 16. Under the fully visible printing product 14 are further partially visible printed products 14, which one regarding the fully visible Printed product 14 about the axis 20 rotated position exhibit.

On the stop 18 with respect to the central axis 12 opposite, on the right in this example, a roller 22 is arranged above the belt conveyor 10. This is designed as a weight roller and hers Axis of rotation 22 '' runs parallel to the conveying plane, perpendicular to the conveying direction F and affects the Stop 18, i.e. the stop roller 20 'on the upstream side.

The freely rotatably mounted roller 22 forms, together with the belt conveyor 10, a front gap 23, into which the respective printed product 14 runs practically at the same time as it hits the stop 18. The roller 22 ensures that the frictional force between the continuously driven belt conveyor 10 and the printed products 14 located in the conveyor gap 23 is so great that the area of the printed products 14 located in the conveyor gap 23 moves in the conveying direction F at the speed v of the belt conveyor 10 . As a result, the printed product 14 at the stop 18 rotates around the stop 18 as a center of rotation until the corresponding printed product 14 comes to rest against a guide 24 with the previously leading edge 16, which after turning forms the side edge 16 ′ facing the stop 18 , which runs in the conveying direction F and, viewed in the conveying direction F, is connected downstream of the stop roller 20 '. The turning process of the printed product is shown in FIG. 1 and shows the same printed product 14 at six successive times or six individual printed products 14 at the same time in a differently rotated position. The distance A between the stop 18 and the roller 22 is selected such that the printed products 14 are held in the conveyor gap 23 between the roller 22 and the belt conveyor 10 during the entire rotation by 90 °; In the exemplary embodiment shown, the distance A is smaller than the length L of the shorter edge of the right-angled printed products 14. In the illustrated exemplary embodiment, the mutual position of the roller 22 and the stop 18 is selected such that the size of the printed product 14 is selected such that the center of gravity of the printed product 14 moved over the roller 22. The scale formation is conveyed at a constant speed v. The stop roller 20 'could also have a relatively large diameter. With such a configuration of the stop roller 20 ', the distance A could also be the same size or slightly larger than the length L of the shorter edge of the right-angled printed products 14.
The distance A from the roller 22, 22 'to the stop 18, 18' can be less than the length L of the edges 16, 36 of the products 14.

As indicated by dash-dotted lines, the Printed products 14 in the opposite direction, in present case to the right, the stop 18 on the right side of the central axis 12 and the roller 22 on the be arranged on the left side of the central axis 12. Corresponding would then also be the guide 24 on the right Provide side of the central axis 12.

As can be seen in FIG. 2, the one in FIG. 1 shown device upstream of the stop 18 Pressure roller pair 26 on that with the belt conveyor 10th forms a further conveyor gap 27. The pressure rollers are each freely rotatable at the free end of a lever 28, the one with its other end at one Bearing axis 30 is pivoted freely, which is parallel arranged to the conveying plane, perpendicular to the conveying direction F runs above the belt conveyor 10. The pair of pressure rollers 26 points to the stop 18, in the conveying direction F measured, a distance B which is greater than the length of the printed products 14, also in the conveying direction F measured; the shown in Figs. 1 and 2 For example, this is the length L of the shorter edge of the Printed products 14. The distance is preferred B but smaller than the common one measured in the conveying direction F. Length L 'of two scales lying one on top of the other neighboring printing products 14 in the incoming Scale stream S, the length L 'the distance between the leading edge of the first printed product 14 for Trailing edge of the second, subsequent printed product 14 corresponds. Due to the distance B selected in this way the pressure roller pair 26 presses the printed product 14, which immediately follows that printed product 14 which to turn against the stop 18, frictionally against the belt conveyor 10 so that it rotates through the bottom leading print product 14 not taken is, but this in turn carry out the rotary movement can.

As can further be seen from FIG. 2, the roller 22 is on free end of another lever 28 'freely rotatable, the other also free on the bearing axis 30 is pivotally mounted.

Seen in the direction of conveyance F, downstream of the stop 18 subsequent guide 24, is a side direction arrangement 32 arranged. This shows stripe-like Side directional elements 34, which are in opposite directions synchronously in Direction of the double arrow C back and forth driven are to be indicated by a dash-dotted line External position towards each other in a direction in which their distance approximately the width of the printed products 14 corresponds to the scale formation S ', and moved back again to become. When moving to the correct position push the side straightening elements 34 laterally at most offset printed products 14 in a to the central axis 12 symmetrical position, so that downstream of the side direction 32 the side edges 16 'of all printed products 14 align and run in the conveying direction F.

In the resulting scale formation marked with S. lies each printed product 14 in scales on the in each case leading print product 14 and the Distance of the leading edges 16 of adjacent printed products 14 is essentially constant. The first one Printed product 14 of the scale formation S pushes in each case with its leading edge 16 at the stop 18 and is then frictionally by means of the roller 22 on the leading and already rotated printing products 14 held on the belt conveyor 10. Through the continuous Rotate successive print products 14 take each other a fan-like in the rotating range Location one without the overlap successive Printed products is lifted. After the full Left turn, in which the previous one Edge 16 is now side edge 16 ', the Printed products 14 by means of the belt conveyor 12 in one Scale formation S 'promoted, in which the previous right side edge 36 is now leading edge 36 '. Since rotating successive printed products 14 continuously and for all print products 14 under the same conditions, the distance between the leading edge 36 'of consecutive printed products 14 in the downstream of the stop 18 by turning formed scale formation S 'the same size as in the resulting scale formation S.

The embodiment shown in FIG. 3 of the inventive The device is for the form of training shown in FIG. 2 mirror image. This will the printed products 14 of the resulting scale formation S with respect to the embodiment shown in FIGS. 1 and 2 in the opposite direction, i.e. in the present case clockwise, turned. Otherwise, the way it works is precise the same as in the embodiment shown in FIG. 2. The reference symbols used there denote in FIG. 3 the corresponding parts, with the exception of the side edge 36, which is to the left of the flow.

Fig. 4 shows a first embodiment of the inventive Facility with which the in the scale formation S resulting printing products 14 optionally in the one or the other direction can be turned. To to this end, the establishment on both sides of the Center axis 12 each have a stop 18, 18 'with an associated Guide 24, 24 'and one on top of the other Side of the central axis 12 arranged roller 22, 22 '. That seen on the left of the central axis 12 in the direction of conveyance F. arranged stop 18 and the associated guide 24 are in a working position 38 with solid lines shown. The stop 18 and the guide 24 are by means of a well-known drive arrangement, for example of a cylinder-piston unit in a dash-dotted line indicated rest position designated 38 ' in which they are outside the Path of movement of the printed products 14 of the incoming Scale formation S are located. The is accordingly assigned role 22 from their working position, in which them on the one abutting the stop 18 Printed product 14 comes into circulation, for example also by means of a cylinder-piston unit Bearing axis 30 can be raised into a rest position, in which it is spaced from the printed products 14. In the in Fig. 4 setting of the device for Rotating the printed products 14 counterclockwise, are the stop 18 'with the guide 24' and the assigned roller 22 'in the rest position 38', with solid lines is shown. To turn the Printed products 14 turn clockwise Stop 18 'with the guide 24' and the roller 22 'in the Working position 38 indicated by dash-dotted lines, the other stop 18 with the guide 24 and roller 22 in the rest position 38 '. The Rotating the printed products 14 of the incoming scale formation S is counterclockwise with extended Lines and clockwise rotation are dash-dotted indicated. Downstream of the stop 18, 18 'and the Guide 24, 24 'is in turn a side straightening arrangement 32 arranged.

Moving the stops 18, 18 ', guides 24, 24' and Rollers 22, 22 'from the working position 38 to the rest position 38 'or rest position 38' in working position 38 to change the direction of rotation takes place in a gap between two successive scale formations S. As can be seen from Fig. 4, which were in the Page straightening arrangement 32 located printed products 14th rotated clockwise, whereas in a subsequent one Scale formation S fed to printed products 14 can be turned counterclockwise.

The embodiment shown in FIGS. 5 and 6 of the inventive Furnishing also offers the possibility the optional rotation of the in a scale formation S accruing printed products 14 clockwise or in Counterclockwise. The belt conveyor 10, the first Stop 18 is assigned, is also a belt conveyor trained feeder 40 upstream. In the direction of conveyance F seen the feed conveyor 40 ends above the At the beginning of the belt conveyor 10, so that it is in the conveying direction F seen from the feed conveyor 40 to the belt conveyor 10 falling step forms. The conveyor belt 42 of the feed conveyor 40 is known at its downstream end Way out around a deflection roller 44. Above this deflection roller 44 is the pressure roller pair 26, whose roles in turn via a lever 28 on the Bearing axis 30 are arranged freely pivotable. The pair of pressure rollers 26 forms together with that around the deflection roller 44 guided conveyor belt 42 a further conveyor gap 27 for those to be fed to the belt conveyor 10 in the Scale formation S resulting printing products 14. The distance B measured in the conveying direction F between the end of the feed conveyor 40 and the stop 18 is larger than that Length L of the resulting in the direction of conveyance F. Printed products 14, but preferably smaller than that common length L 'of two adjacent successive Printing products 14. This measure is each abutting print product 14 from the stop 18 Feeder 40 expired, whereas the subsequent printed product 14 still held in the further conveyor gap 27 is. As a result of the step, the one that abuts the stop 18 is located Printed product 14 in its trailing end area free (Fig. 5), with which the friction to the subsequent Printed product 14 is canceled or is only low, what a reliable and safe turning of the printed products 14 guaranteed. In order to with respect to the central axis 12 on the other side arranged roller 22, a guide belt 46 is guided, the further around a roller 48 mounted on the bearing axis 30 is guided and can be driven. This ensures that none of the printed products 14 in the Skip working position 38 located stop 18 can. This is similar to that shown in FIG Working position 38 can be brought into a rest position 38 ', in which he is outside the trajectory of the Printed products 14 is located.

The belt conveyor 10 is followed by a second belt conveyor 50, the belt conveyor 10 to the second belt conveyor 50 a falling level in the same way forms how this between the feed conveyor 40 and the belt conveyor 10 is the case. At a distance B downstream of the Belt conveyor 10 is a second stop 18 ', which is assigned to the second belt conveyor 50 and itself with respect to the central axis 12 on the stop 18 opposite side. On the same page like the stop 18 is the roller 22 'that the further stop 18 'is assigned. The roll 22 'is via a lever 28 'on a further bearing axis 30' pivoted, on which another lever 28 Pressure roller pair 26 'is arranged. This works with the belt conveyor 10 at its downstream end together. The stop 18 'with the associated guide 24 'is the side direction arrangement 32 downstream.

5 and 6 are located both stops 18, 18 'in the working position 38. Die the upstream stop 18 in the scale formation S supplied printing products 14 are in Turned clockwise. Accordingly, the arranged in a leading scale formation S. Printed products 14 by means of the stop 18 'in the counterclockwise direction rotated as shown in Figs. 1 and 2. As soon as the last one assigned to this scale formation S. Printed product 14 is rotated, the stop 18 'in Rest position 38 'spent to the means of the upstream located stop 18 turned printed products 14 unaffected by means of the second belt conveyor 50 Side straightener 32 and then convey away. Each after whether the next following scale formation assigned print products 14 clockwise or in Must then be turned counterclockwise corresponding stop 18, 18 'in working position 38 or Rest position 38 'spent. This goes without saying, of course with the associated guide 24, 24 ', whereby now but the rollers 22, 22 'always remain in the working position can.

In the embodiment of the embodiment shown in FIG. 7 Device are the belt conveyor 10 and the second belt conveyor 50 is arranged one above the other. Each this belt conveyor 10, 50 is also a belt conveyor trained feed conveyor 40, 40 'assigned, the End seen in the direction of conveyance F downstream again ends above the belt conveyor 10, 50. The two Feed conveyor 40, 40 'is designed as a belt conveyor Rocker 52 upstream, between the two Belt conveyors 10 and 50 can be switched back and forth to the by means of an upstream belt conveyor Conveyor 54 in printed form S supplied in scale formation 14 either the belt conveyor 10 or the second To feed belt conveyor 50.

Seen in the conveying direction F, the belt conveyor 10 is in relation the central axis 12 on the right side of the stop 18 with the guide 24 and the roller on the left 22 assigned. Accordingly, the same is true in the area of second belt conveyor 50 with respect to the central axis 12 the left side of the stop 18 'with the guide 24' and arranged on the right side the roller 22 '. Continue a pair of pressure rollers acts with each of the feeders 40, 40 ' 26, 26 'together, as already shown in FIGS. 5 and 6 is known. Both the pressure roller pairs 26, 26 'and also the stops 18, 18 'and guides 24, 24' yourself in working position 38 and do not need one Rest position to be trained convertible.

The belt conveyor 10 is designed as a belt conveyor, Downstream conveyor 56 having an incline, which is followed by a conveyor belt 58 which is followed by the side straightening arrangement 32 is assigned. The second belt conveyor 50 is also a downstream conveyor 56 ', but the Incline is shorter in length than that Away conveyor 56 and ends at a distance above this.

7 shows a scale formation in the right end region S ', whose printed products 14 previously by means of the second Belt conveyor 50 and the associated stop 18 'in Conveying direction seen were turned to the left. These printing products are noticeable when leaving the conveyor 56 ' the conveyor 56 or the conveyor belt 58. In the area of the feed conveyor 40 of the belt conveyor 10 and in the initial section the conveyor 56 is another Scale formation S, whose printed products 14 by means of of the stop 18 assigned to the belt conveyor 10 in Seen the conveying direction was turned to the right or still be rotated. This scale formation S is with following a gap in the scale formation S 'by means of the Conveyor 56, the conveyor belt 58 and the side straightening arrangement 32 are supplied. The conveyor 56 'ends at such a distance above the belt conveyor 56, that the printed products rotated on the belt conveyor 10 14 can be conveyed through. The rocker 52 is pivoted towards the top to make another accruing Scale formation S the second belt conveyor 50 feed where the relevant print products 14 then be turned 90 ° to the left.

From Fig. 7 it can be seen that the respective switching the rocker 52 after feeding each scale formation the corresponding printed products 14 either can be turned left and right. Is turning the Printed products of 14 consecutive scale formations S only wanted in one direction, the rocker remains 52 held in the position concerned.

8 to 14 show a further form of training Device according to the invention for selectively rotating the in a scale formation S resulting printing products 14 left or right. Regarding the belt conveyor 10, facing each other, are two round trips 60, 60 'arranged. Every round trip has one in itself closed support element 62, configured for example as a shoulder strap 62 that is four in a rectangle Arranged pulleys 64, 66, 68, 70 is guided. The each facing the belt conveyor 10, a guide section 72 ′ forming run 72 of the carrying belt 62, that from the corresponding deflection roller 64 to the downstream Deflection roller 66 runs is parallel to the belt conveyor 10 and to the central axis 12. On each carrying strap 62 is a stop and guide element 74, 74 ' arranged like a curtain, which in the longitudinal direction of the Carrying belt 62 is shorter than half the length of the Carrying belt 62 but longer than the guide section 72 '. The belt conveyor 10 points at right angles to the conveying direction F measured a smaller width than that Printed products 14 of the fed scale formation. On both sides of the belt conveyor 10 is a support plate 76 arranged up to which down the stop and Guide element 74, 74 'is at least approximately sufficient. The Carrying straps 62 of the two rotations 60, 60 'are synchronous with each other, but driven out of phase by 180 °. The distance between the dreams 72 of the two round trips 60, 60 ', measured perpendicular to the conveying direction F corresponds at least approximately the length L of the shorter edge of the Printed products 14 in the resulting scale formation S, in which this shorter side edge in the conveying direction F runs.

Each of the deflection rollers 64 is with respect to the central axis 12 assigned a roller 22 or 22 'on the other side, which can be changed from a working position to a rest position is. The deflection rollers 64 is a pair of pressure rollers 26 upstream at distance B, which in turn is larger is the length L of the edge of the printed products being fed 14, but preferably shorter than that in the conveying direction F measured common length of two successive Printed products 14.

In Fig. 8 that is with respect to the belt conveyor 10 and the central axis 12 arranged on the left stop and guide element 74 'in the working position 38 and the opposite stop and guide member 74 in Rest position 38 '. The roller 22 is located accordingly in working position 38 and the roller 22 'dot-dash indicated in the rest position 38 ', in which it is from the Printed products 14 is lifted off. At 78 are the drive motors with reduction gear for the drive of the round trips 60, 60 '.

The functioning of this form of training is now based on 9 to 14 explained. 9 is between the two round trips 60, 60 'a printed product 14 shown that the last of a scale formation S 'is whose printed products 14 rotated clockwise by 90 ° were. The two round trips 60, 60 'are in opposite directions Direction of arrow R driven, so that the trailing End of the one on the right with respect to the center line 12 Stop and guide element 74 approximately with the trailing end of the printed product 14 in the conveying direction F moves.

One follows at a distance from this printed product 14 resulting scale formation S, whose printed products 14 are to be turned counterclockwise. This will be like this 10 shows, due to the drive of the concentric runs 60, 60 ' the stop and guide element 74 'in the conveying direction F seen left runout 60 'around the corresponding one Deflection roller 64 moves where it forms the stop 18 '. On the supplied printing products 14 encounter this off-center. 10 this is based on the in Direction of delivery seen first printed product 14 of the resulting scale formation S shown.

At the time shown in Fig. 11 are already two printed products 14 of the scale formation S partially rotated counterclockwise and the third printed product 14 abuts the stop and guide element 74 '. Because at this point the stop and guide element 74 of the concentric run, as seen in the conveying direction 60 has been moved outside the run 72, can the printed products to be rotated 14 below the Move pulley 64 and 66 through, as shown in Fig. 12 shows. The concentric runs 60, 60 'are driven as long as until the stop and guide element 74 'assigned to the left concentric run 60' is symmetrical to the strand 72 is located and the pulley 64 still engages. In the rotations 60, 60 'are stopped in this position. The rollers 22 and 22 'prevent the Printed products 14 transversely to the conveying direction F when driven Stop and guide element 74, 74 '.

As can be seen from FIG. 13, the corresponding forms Run 72 of the stop and guide element 74, 74 ' in addition to the stop 18, 18 ', the guide 24 or 24 ', on which the rotated printed products 14 with of their now laterally arranged edge 16 '.

Is the last printed product 14 an accruing Scale formation S has been rotated, now the concentric runs 60, 60 'driven again, so now that in advance active stop and guide element 74 'in one Rest position 38 'and that assigned to the other run 60 Stop and guide element 74 in the working position 38 is spent. As previously described, are now the printed products 14 of the following accruing Scale formation S rotated clockwise become. For this purpose, the previously active role 22 raised in the rest position and the roller 22 'in the working position lowered, as indicated in Fig. 14.

The device according to the invention is not only for processing of printed products 14, but generally for Rotating rectangular, resulting in a scale formation suitable for flat products. You can e.g. also be samples or the like.

In the examples shown, the products in the resulting scale formation S a position in which the longer side edge perpendicular to the conveying direction and the shorter run in the conveying direction F. With the The device according to the invention can also be products a scale formation, whose longer "side edges" run in the conveying direction F.

In each of the forms of training shown it is from Advantage, the belt conveyor 10 or 50 in question Upstream feeder 40, 40 ', the above the belt conveyor ends at a falling level for those to be rotated To form products 14.

It is also possible that the belt conveyors 10, 50 and feed conveyors 40, 40 'with different speeds are driven to the distance between the leading Reduce the edges of successive printed products or enlarge.

It is also possible to guide elements 74, 74 ' individually controlled with the drive motor 78 to drive. In addition, it is only possible to run 60 60 ', in which case the guide element 74, 74' must be closed, as is analogous to FIG. 2 and FIG. 3 is shown.

Claims (10)

Device for turning in a scale formation resulting rectangular, flat products, especially printed products, with one in the trajectory by means of a belt conveyor (10.50) transported products (14) and in relation to Central axis (12) of the incoming scale formation (S) stop (18, 18 ') arranged on one side and one on the other side on the one at the stop (18, 18 ') abutting product (14) for circulation coming role (22,22 '), characterized in that the axis of rotation (22 '') of the roller (22,22 ') at least approximately perpendicular to the conveying direction (F) of the belt conveyor (10) runs as well as at least approximately Stop (18, 18 ') affects. Device according to claim 1, characterized in that the belt conveyor (10.50) is a belt conveyor trained feeder (40, 40 ') is connected upstream, the above the belt conveyor (10.50) and in the conveying direction (F) seen at a distance (B) before the stop (18,18 ') ends, which is at least the same size as the length (L) measured in the conveying direction (F) a product (14) in the incoming scale formation (S) and is preferably smaller than that in Direction of conveyance (F) measured common length (L ') of in each case two neighboring ones lying on top of one another like a scale Products (14) in the incoming Scale formation (S). Device according to claim 1 or 2, characterized characterized that upstream of the attack (18, 18 ') one with the belt conveyor (10) or the Feed conveyor (40, 40 ') forming a conveyor gap (27) Pressure roller (26,26 ') arranged at a distance (B) which is at least as large as that in the conveying direction (F) measured length (L) of products (14) in the incoming scale formation (S) and is smaller than that measured in the conveying direction (F) common length (L ') of two neighboring, products lying on top of one another in a scale-like manner (14) in the incoming scale formation (S). Device according to one of claims 1 to 3, characterized marked that on each side of the central axis (12) one stop each (18, 18 ') and one roller (22, 22') are arranged, and the stops (18, 18 ') together with the one arranged on the other side Role (22,22 '), preferably in push-pull between a working position (38) and a rest position (38 ') are convertible. Device according to one of claims 1 to 3, characterized characterized in that downstream of the stop (18) and the roller (22) with respect to the central axis (12) opposite another stop (18 ') and one further roller (22 ') are arranged, and the stops (18,18 '), preferably in push-pull between one Working position (38) and a rest position (38 ') are convertible. Device according to one of claims 1 to 3, characterized characterized in that above the belt conveyor (10) another belt conveyor (50) is arranged and this Belt conveyors (10.50) an adjustable soft arrangement (52) for alternately feeding one at a time Scale formation (S) is connected upstream, and the a further belt conveyor (50) a stop (18 ') and a Role (22 ') are assigned, which with respect to the Belt conveyor (10) associated stop (18) and roller (22) are arranged in opposite directions. Device according to one of claims 1 to 6, characterized characterized that downstream of the, preferably by one running at a right angle to the conveyor level Axle (20) freely rotatable stop roller (20 ') formed stop (18,18') a guide (24,24 ') is arranged on which the turned products (14) with one of its side edges (16 ') to the system come, and - in the case of an adjustable stop (18,18 ') - the guide (24,24') together with the stop (18, 18 ') between the working position (38) and rest position (38 ') can be changed. Device according to claim 5, characterized in that on both sides of the belt conveyor (10) a concentric run (60, 60 ') with a deflection (64) downstream then running in the conveying direction (F) Guide section (72 ') is arranged, each concentric run (60.60 ') a stop and guide element (74.74') is assigned, which extends in the direction of rotation and its length is greater than the guide section (72 '), the stop and guide elements (74,74 ') offset from each other and by synchronous drive of the two rotations (60.60 ') alternately from a working position (38) to a Rest position (38 ') can be moved, the stop and guide elements (74, 74') in the rest position (38 ') outside the deflection (64) and the guide section (72 ') and in the working position (38), forming a stop (18, 18 ') around the deflection (64) and, forming a guide (24), in the guide section (72 ') run. Device according to one of claims 1 to 8, characterized characterized that the role (22,22 ') and / or the Stop roller (20 ') is driven. Device according to one of claims 1 to 9, characterized characterized in that the roller (22, 22 ') with an in Conveyor belt (46) conveying direction (F) is provided.

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