EP1245518A2 - Pile former - Google Patents

Abstract

The machine for producing a vertical stack from an overlapping stream of printed products (P) comprises a guide (12) which feeds them into an inclined shaft (14). This has combs (16, 18, 20) along its length which can be moved to and fro in it.

Description

The present invention relates to a vertical bar former for Forming vertical stacks, so-called bars, from printed products, which are delivered in a stream of shed.

Such known bar formers have a product feed Feed the scale flow in a conveying direction and a straight line Stack distance on. The stacking section follows the product feed and has an upper start and a lower end. Furthermore, in the area of the stacking section for the continuous formation of Rods several handling elements are provided.

It is the object of the present invention to create a bar former to improve the preamble of claim 1 in that high performance less the stacked printed products to be damaged.

This object is achieved by the features of claim 1 and in particular in that the top of the stack section opposite the vertical is inclined in the conveying direction.

According to the top of the stacking section is opposite to the lower beginning inclined in the conveying direction so that the in the area of the stacked printed products with their leading edge (Fold) automatically by gravity against one in the area of the stacking line the intended stop. This allows you to perform of the printed products through the product feed and when holding them down the product back less forces are applied, whereby smearing of the printed products by hold-down elements or pressure belt is avoided. At the same time, there is a total Improved bar formation as the products align themselves.

Advantageous embodiments of the invention are in the description, the claims and the drawings described.

According to a first advantageous embodiment, the handling elements at least one displaceable along the stacking path and have rakes retractable into the stacking section, the upper one End position above the scale flow supplied by the product guide is arranged. The upper end position, i.e. the waiting position the rake is thus above the shingled stream supplied, so that the rake touches the bar from above. This will Rod end held securely so that it cannot slip.

According to a further advantageous embodiment, the handling elements at least one displaceable along the stacking route Lowering fork, in the displacement of which a first feed for end plates is arranged. The lowering fork is used in a known manner, the Lower the bar during the bar forming process. According to the invention there is the possibility of retracting the lowering fork End plate for the next rod to be formed, because in the Displacement of the lowering fork is provided an end plate feed.

This first feed for end plates is thus arranged in an area seen both in terms of space and in terms of time is not critical.

According to a further advantageous embodiment, the handling elements one slidable along the stacking path and into the Stackable retractable holding rake, in the displacement of which one second feed for end plates is arranged. Here too, according to the invention the possibility that a second end plate, for example an upper end plate, after which the holding rake is placed from above this has been moved along the stacking route.

According to a further embodiment of the invention, the handling elements one slidable along the stacking path and into the Stackable retractable separating rake, the tines with a support tape are provided when the rake is withdrawn from the stacking section via a roller provided at the tip of the tine can be unrolled. By such a separating rake with a rollable Support tape or trigger tape can be prevented from a relative movement between the rake and the product stack above it takes place by the overlay during the retraction of the rake is rolled over the roll. This prevents the to transferring printed products are damaged or smeared.

According to a further embodiment of the invention, the product feed has at least three in the conveying direction and transverse to the conveying direction spaced pressure belts. With such pressure belts the shingled stream of printed products supplied can be accelerated and pre-pressed into the stacking section, at the same time proper orientation of each individual printed product is ensured.

According to a further embodiment of the invention, the product feed can be designed so that the position of the two outer pressure belts is adjustable transversely to the conveying direction. This makes it easy to adjust guaranteed because the middle pressure belt even with different Formats can maintain its location, while only the two outer pressure belts must be adjusted. An adjustability the outermost pressure belt has the additional advantage that each printed product of the shingled stream supplied is always at the top and is held and pressed when it is inserted into the stacking section becomes.

A total of six pressure belts in the product feed are preferred provided, the two innermost pressure belts transverse to the conveying direction are not adjustable, and being the relative length of the two outermost Pressure belt and the relative position of the neighboring one Pressure belt is adjustable across the conveying direction. Such Product feeding can also be done with multi-pronged rakes at different Format sizes are used because of the adjustability of the Pressure belts easily adapt to different Formats is possible. At the same time, it is again ensured that the products always at their two outermost opposite edges, i.e. on Head and foot, securely pressed and held. At the same time it results a particularly easy adjustment of the pressure belt.

According to a further advantageous embodiment of the invention, the Product feed and the handling elements on a common Base attached, the distance between the base and the stacking distance in The direction of conveyance is adjustable. This allows a format adjustment also in the direction of conveyance, i.e. in the width direction of the printed products, again ensuring particularly easy adjustability is because only the base in the conveying direction is set to the product width must become.

According to a further advantageous embodiment, a unit for Introducing a gap in the shingled stream provided in a such a height above the ground that it is from one on the Floor operator can be easily reached, one Transport device for further transport of the product stream to the the product feed provided at the upper end of the stacking section is provided. Such an embodiment brings considerable Operating advantage with it, since the setting of the unit for insertion a gap in the shingled stream conveniently made by the operator can be without it on a ladder, a pedestal or the like must stand.

According to a further advantageous embodiment, a displacement device be provided, which is a fully formed rod from the Area of the stacking section guided on all sides to a pressing and strapping unit passes. This results in a fully automatic mode of operation the machine, while ensuring that the fully formed Also at the handover to the pressing and strapping unit is guided on all sides.

Fig. 1

eine stark vereinfachte schematische Seitenansicht eines vertikalen Stangenbildners;

Fig. 2

eine stark vereinfachte Draufsicht auf die Produktzuführung mit eingeführtem Rechen; und

Fig. 3

eine vereinfachte Seitenansicht eines mit einem Auflageband versehenen Rechens bei der Übergabe eines Produktstapels.

The present invention is described below purely by way of example using advantageous embodiments and with reference to the accompanying drawings. Show it:

Fig. 1

a greatly simplified schematic side view of a vertical bar former;

Fig. 2

a greatly simplified top view of the product feed with an inserted rake; and

Fig. 3

a simplified side view of a rake provided with a support belt when transferring a product stack.

Fig. 1 shows a side view of a vertical bar former for forming from bars S from printed products delivered in a shingled stream P. The bar former has a base frame 10 Product feed 12 for feeding the scale flow P in one Direction of conveyance F, with a straight line on the product feed 12 Stacking path 14 with an upper start in the area of the product feed P and a lower end connects. In the area of the stack 14 multiple handling elements are provided to continuously individual rods S from the delivered scale stream P. form. In detail, it is a separating rake 16, one Holding rake 18 and a lowering fork 20, each along the stacking path 14 are slidably attached to the base frame 10. Here is the Lowering fork 20 slidable along a guide 22, whereas the Separating rake 16 and the holding rake 18 can be moved along a guide 24 are. Both guides overlap along the stacking route 14th

Both the separating rake 16 and the holding rake 18 are in the stacking section 14 retractable (see illustration in Fig. 1) and can with the help of actuating cylinders 26 to the rear from the area of the stack section 14 be brought out.

1 shows, the stack path 14 is inclined, in such a way that the upper beginning of the stack section 14 with respect to the vertical in the conveying direction F (and not against the conveying direction). hereby includes a stop provided on the back of the conveyor line 14 28 with the horizontal an acute angle α, for example is about 70 °, and that opens in the conveying direction.

Approximately in the middle third of the stack section 14 is parallel to the rake 16, 18 a first feed 34 for end plates 36 is provided. At the top Third of the stacking distance is perpendicular to the stop 28 and parallel to the first feed 34 a second feed 30 for end plates 32 intended. A stacking plate can be fed through the feeds 30 and 34 32 or 36 are introduced into the stack section 14, the Lowering fork 20 takes over an end plate 36 from the feed 34 and the holding rake 18 takes over an end plate 32 from the guide 30, which is explained in more detail below.

As further shown in FIG. 1, there is one in the lower region of the stacking section 14 Sliding device 40 arranged. With this slider can the fully formed rod S from the stacking range 14 transferred to a (not shown) pressing and strapping unit become. For this purpose, the rod S is in a direction perpendicular to the plane of the drawing postponed. The rod is then pressed and strapped.

In order to obtain all-round guidance of the rod S during the transfer, the displacement device 40 has a plurality of pivotable holding brackets 42, which are provided with pins 44, which when folded Press brackets 42 onto the top of the upper end plate 32. Above the bracket 42, a lateral guide 46 for the rod S may be provided.

The product feeder 12 has a plurality of upper and lower pressure belts 50, 52 on, between them the shingled stream P from Lead printed products while pressing. The upper pressure belts 50 are longer than the lower pressure belts 52 and the front end of the upper pressure belt 50, 52 extends into the upper end of the stacking section 14. In this area 28 are parallel on the side of the stop and essentially in alignment with this a plurality of trigger belts 54 provided with the help of the product spine (fold) in the stacking line 14 imported printed products is pulled down.

As illustrated in FIG. 1, the upper end position of the separating rake 16 lies and the holding rake 18 above that through the product guide 12 fed scale stream P when its products in the stacking section 14 occur. This means that the rakes 16, 18 during a lowering movement dive through the stream of scale. Because the top Pressure belt 50 of the product feed 12 into the area of the stacking section are introduced (see FIG. 1), the rakes 16, 18 must comb the top pressure belt 50. Fig. 2 shows a top view this arrangement in detail.

In Fig. 2 is a plan view of the separating rake 16 is shown with combs the pressure belt 50a-50f of the product feed 12. simultaneously can be seen that the tines of the separating rake 16 by in the Stop 28 provided slots are passed and that the Separating rake 16 with the help of the actuating cylinder 26 in the direction of the double arrow 27 into and out of the stack section 14.

The separating rake 16 has five in the illustrated embodiment Tines on, one tine between two adjacent pressure belts 50a, 50b, 50c, 50d and 50e, 50f comes to rest. When lowering of the separating rake 16 along the guide 24 would come the tines Computing 16 with the pressure belt of the product feed 12, so that the Rake 16 can pass through the product feed 12.

The separating rake 18 is designed in the same way as the separating rake 16 and is from the position shown in Fig. 1 together with the separating rake 16 lowered, with the start of the lowering movement both rakes are directly one above the other.

Fig. 1 zeigt eine im normalen Betrieb an sich nicht vorkommende Betriebsstellung. Im normalen Betrieb befindet sich demgegenüber bei vollständig abgesenkter Senkgabel 20 der Trennrechen 16 etwa in der gestrichelt dargestellten Position, wohingegen der Halterechen 18 sich etwa im oberen Endbereich der vollständig gebildeten Stange S befindet. In der Darstellung der Fig. 1 ist der Halterechen 18 bereits aus der Stapelstrecke 14 zurückgezogen und die Haltewinkel 42 sind vorgeklappt, so daß die Stange S von den Zapfen 44 gehalten wird. Nachdem die Stange S durch die Verschiebeeinrichtung 40 aus dem Bereich der Stapelstrecke 14 entfernt worden ist, wird die Senkgabel 20 entlang der Führung 22 bis an den sich kontinuierlich absenkenden Trennrechen 16 herangefahren. Hierbei nimmt die Senkgabel 20 bei Durchlaufen der Zuführung 34 eine untere Endplatte 36 auf.

The operation of the bar former described above is described below:

1 shows an operating position that does not occur in normal operation. In normal operation, on the other hand, when the lowering fork 20 is completely lowered, the separating rake 16 is approximately in the position shown in broken lines, whereas the holding rake 18 is approximately in the upper end region of the fully formed rod S. 1, the holding rake 18 has already been withdrawn from the stack section 14 and the holding brackets 42 are folded forward so that the rod S is held by the pin 44. After the rod S has been removed from the region of the stacking section 14 by the displacement device 40, the lowering fork 20 is moved along the guide 22 to the continuously lowering separating rake 16. Here, the lowering fork 20 receives a lower end plate 36 as it passes through the feeder 34.

After the lowering fork 20 has reached the underside of the separating rake 16 has been introduced, this is from the stack section 14 with the help of the actuating cylinder 26 withdrawn, so that the (not shown) partial stack from printed products, which is located on the separating rake 16 the lowering fork 20 is transferred, i.e. the stack will be on the end plate 36 stored, which is located on the lowering fork 20. The lowering fork 20 will then continuously lowered further, causing the on the lowering fork 20 existing partial stack is continuously enlarged. Be at the same time the two retracted rakes 16 and 18 at high speed in their upper end position (waiting position), which is solid in Fig. 1 Lines is shown. Both are in this upper end position Rake directly one above the other, so that these together in the upper End region of the stack section 14 can be retracted when the rod located on the lowering fork 20 reaches the desired height Has.

The separating rake 16 and the holding rake 18 shoot together in the Stack distance 14 after a separator 60 a certain Gap in the shingled stream created and after that gap up has reached the area of the stack section 14. Then be this lowered at the same time so that it with the pressure belt 50a - 50f comb the product feeder 12. The holding rake 18 is then moved at the same speed as the lowering fork 20, so that the fully formed rod between the lowering fork 20 and the Holding rake 18 is clamped. The separating rake 16 is used with the usual Rod formation speed lowered, so that on this one forms new partial stack.

When lowering the fully formed rod S is on the feed 30 an upper end plate 32 on top of the holding rake 18 handed over after this has passed through the feeder 30. Subsequently the rod S is in the lowest position shown in Fig. 1 lowered and the bracket 34 are closed, so that the holding rake 18 can be withdrawn. Then the cycle begins again.

With the bar former described above, printed products can also be used can be stacked with different formats without being complicated Adjustments are required. For this purpose, the bar builder a format adjustment that acts in the conveying direction F and a format adjustment that is transverse to the conveying direction F of the conveyed Products P works.

As illustrated in FIG. 2, the product feed in the illustrated Embodiment six upper pressure belts 50a - 50f on the a base 70 are attached. All pressure belts run parallel and each take a prong of rakes 16 and 18 between them. As indicated in Fig. 2 by double arrows, the two can outermost pressure belts 50a and 50f transverse to the product conveying direction F can be adjusted (arrows A, B), with an additional relative adjustment between the two outermost pressure belts 50a and 50b or 50e and 50f is possible (arrows C, D). This ensures that each product on both of them lying transversely to the conveying direction extreme edges of pressure belts (pressure belts 50a and 50f) is held and that the remaining pressure belts evenly over the Area of the product are distributed.

A different product width can be adjusted by Base 70 can be reached along the double arrow 72. As with the base 70 the guide 24 of the rake 16, 18 and the guide 22 of the lowering fork 20 is connected by simply moving the base 70 along the double arrow 72 an adjustment of all required settings causes.

3 shows an alternative embodiment of a holding rake 18 ' the transfer of a formed partial stack S to the lowering fork 20 or the end plate 36 located on this. In this alternative embodiment is a deflection roller at the ends of each prong of the separating rake 18 ' 82 is provided, with a support belt around each deflection roller 82 80 is performed. When the rake 18 'is pulled back, the upper run of the support tape 80 at the left end (in Fig. 3), so that when withdrawing the rake 18 'simultaneously with the lower run of the Support tape 80 this can roll around the pulley 82. hereby the partial stack S located on the support belt 80 is unrolled without that a relative movement between the rake 18 'and the sub-stack S takes place. In this way, an extremely gentle transfer of the Partial stack formed.

According to a further embodiment, not shown, the separation device 60 to introduce a gap in the shingled stream in provided such a height above the ground that it can move from one to the other the operator standing on the floor can be easily reached. in this connection is a transport device for the further transport of the product stream to the product feed provided at the upper end of the stacking section 14 12 provided. In this embodiment, convenient, simple and safe way of setting the separating device 60 done by an operator, without using aids such as ladders, Stools or the like are required.

LIST OF REFERENCE NUMBERS

10

base frame

12

product feed

14

stacking section

16

separating rake

18

holding rake

18 '

holding rake

20

lowering fork

22

Guide for lowering fork

24

Guide for separating and holding rakes

26

actuating cylinder

27

Adjustment direction of the rake

28

attack

30

second feed

32

upper end plate

34

first feed

36

lower end plate

40

shifter

42

bracket

44

spigot

46

lateral guidance

50

upper pressure belt

50a - 50f

upper pressure belt

52

lower pressure belt

54

off belts

60

separator

70

Base

72

Direction of displacement of the base

80

supporting belt

82

idler pulley

F

conveying direction

P

product flow

S

pole

α

tilt angle

Claims (10)

Vertical bar former for forming vertical bars (S) from printed products (P) delivered in a shingled stream, with a product feed (12) for feeding the shingled stream in a conveying direction (F),
a rectilinear stacking section (14) adjoining the product feed (12) with an upper start and a lower end, and
several handling elements (16, 18, 20) in the area of the stacking section for the continuous formation of bars,
characterized in that
the upper beginning of the stacking section (14) is inclined with respect to the vertical in the conveying direction (F). Bar former according to claim 1,
characterized in that
the handling elements have at least one rake (16, 18, 20) which is displaceable along the stacking section (14) and can be moved into the stacking section, the upper end position (waiting position) of which is arranged above the shingled stream supplied by the product feeder (12). Bar former according to claim 1,
characterized in that
the handling elements have at least one lowering fork (20) displaceable along the stacking path, in the displacement path of which a first feed (34) for end plates (36) is arranged. Bar former according to claim 1,
characterized in that
the handling elements have a holding rake (18, 18 ') which can be displaced along the stacking section (14) and can be moved into the stacking section, in the displacement path of which a second feed (30) for end plates (32) is arranged. Bar former according to claim 1,
characterized in that
the handling elements have a separating rake (18 ') which can be moved along the stacking section (14) and which can be moved into the stacking section, the tines of which are provided with a support band (80) which, when the rake (18') is withdrawn from the stacking section (14), has a roller (82) provided at the tip of the tine can be unrolled. Bar former according to claim 1,
characterized in that
the product feed (12) has at least three pressure belts (50a - 50f) running in the conveying direction (F) and spaced transversely to the conveying direction (F), the relative position of at least the two outer pressure belts (50a, 50f) being adjustable transversely to the conveying direction (F) is. Bar former according to claim 6,
characterized in that
A total of six pressure belts (50a - 50f) are provided, the two innermost pressure belts (50c, 50d) not being adjustable transversely to the conveying direction (F), and the relative position of the two outermost pressure belts (50a, 50f) and the relative position of the adjacent pressure belts (50b, 50e) can be adjusted transversely to the conveying direction (F). Bar former according to claim 1,
characterized in that
the product feed (12) and the handling elements (16, 18, 18 ', 20) are fastened on a common base (70), the relative position between the base (70) and the stacking section (14) being adjustable in the conveying direction. Bar former according to claim 1,
characterized in that
a unit (60) is provided for introducing a gap into the stream of shingles, which is arranged at such a height above the floor that it can be easily reached by an operator standing on the floor, and that a transport device for further transport of the product stream to the is provided at the upper end of the stacking section product feed. Bar former according to claim 1,
characterized in that
a displacement device (40) is provided, which transfers a completely formed rod (S) from the area of the stacking section (14) to a pressing and strapping unit.

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