EP0243944A1 - Device for the production of bundled piles of folded paper sheets - Google Patents

Abstract

1. Apparatus for producing bundled columns of folded paper sheets, in particular of folded printed sheets, comprising a sheet feed station (20) having conveying means for feeding the sheets in the form of an imbricated stream, a retaining means (21) for clocked interruption of the imbricated stream and possibly means (39) for counting and aligning the sheets supplied, at least one stack magazine (40) with vertically adjustable bottom (28), a station (22) for introducing protective plates in the form of bottom and cover plates into the stack magazine and a station (34) for pressing and hooping the column formed in the stack magazine, characterized in that the stack magazine (40) is arranged on a travelling or movable table (3), which is however lockable in predetermined positions, and comprises lateral guides (9, 9', 10) defining the stack space of the magazine (40) and that the front lateral guides (10) nearest the edges of the table (3) carry over at least the lower portion of their vertical extent brush strips (13) of which the bristles (44) project into the stack magazine (40) in such a manner that they engage at least partially into the stacked sheets (31) and their leaves in the region of the unfolded edges.

Description

The invention relates to a device for producing bundled bars from paper sheets, in particular from folded printed sheets, with a sheet feed station, the conveying means for feeding the sheets in the form of a shingled stream, a separating device for intermittent interruption of the shingled stream and optionally means for counting and aligning the sheets fed has, at least one stacking magazine with a height-adjustable bottom, a station for the introduction of protective plates in the form of bottom and top plates into the stacking magazine and with a station for pressing and strapping the rod formed in the stacking magazine.

As a rule, the printed sheets coming from a rotary machine, for example a printing or folding machine, are laid out in the form of a stream of shingles and stacked on the operator's pallet in the form of individual packages. The manual stacking of individual packages on pallets requires a great deal of care and experience, otherwise the handy individual packages will fall apart. However, this process no longer meets today's occupational physiological and ergonomic requirements. Because the operator cannot interrupt the work as long as the sheet delivery of the rotary machine is running and has to move considerable masses by hand, for example 1200 kg / h with a single sheet weight of approx. 60 g. In addition, loose stacking takes up a lot of space.

The stacking of folded sheets, not only of paper, is problematic because air inevitably traps air between the individual layers of paper or pages. Therefore, the folded sheets are slightly higher in the area of their folded edge than in the area of the open edges. Since the sheets are always discarded with the fold ahead when stacking, i.e. the fold comes to rest on the fold, the stack on the fold side quickly becomes higher than on the opposite side. The more the discarded stack grows, the more the top sheet of the stack comes into an inclined position, which finally even approaches the vertical.

From DE-PS 27 53 048 a stacking device is known which mechanically forms rods from 200 to 300 sheets from the shingled stream, which are then pressed and strapped with a belt or automatically strapped and stacked on pallets and in this form until further processing, for example in Bookbinders are temporarily stored. Compared to manual stacking of individual packages, this device does make the physical one Use of the operating personnel and the space requirement reduced, but the problem of the skew of the stack due to the different sheet height in the area of the fold on the one hand and the unfolded edges on the other hand not solved.

From DE-OS 31 26 807 a device of the type mentioned is known, in which the sheets are also fed to the stream of flakes and are thrown into a magazine into a vertical bar, moving downward on a support forming the bottom of the magazine, the discarded stack is then pressed together in the magazine, after placing a protective plate on the last sheet, and is strapped with a band by means of a special strapping device. To interrupt the shingled stream, a retaining device is provided which retains the shingled stream during the pressing process, so that at the same time the insertion of a new support plate onto an auxiliary stacking level can be carried out, on which the next sheets can already be stacked until the main stack carrier, after removal of the previously strapped stack again takes over the newly forming stack. So that the sheets do not bulge during stack formation and are stacked as evenly as possible, a complex second pressing device is proposed to solve the above-described problem of different sheet heights, which presses the uppermost printed sheets of the started bar on the fold side during stack formation and up to the longitudinal axis The pressing of the rod, which has been completely ejected up to the desired height, continuously holds in the pressed state.

The second pressing device required for this is expensive because it, coordinated with the machine cycle, enters the magazine space during the ejection of the sheets grip, compress the sheets in the area of the fold, but when taking over the stack that forms from the auxiliary stack level to the main stack carrier, it must be moved out of the magazine space and then returned to the original position. All these movements of the second pressing device disturb the very sensitive process of stack formation, without the actual problem being solved satisfactorily. Because the sheets are compressed on their higher side due to the inclusion of air, but the air between the layers of paper can only imperfectly escape at the open edges of the sheets, because with increasing stack height the weight of the sheets prevents the enclosed air from escaping completely. This creates uneven air cushions within and between the individual sheets. This in turn can damage the paper surface, causing it to wrinkle.

The invention has for its object to provide a solution to the problem associated with the different height of folded printed sheets while avoiding the disadvantages of the known devices, i.e. to create a device with which it is also possible to form higher stacks in which the individual sheets lie flat with only a small outlay on equipment. At the same time, the device to be created should be universally applicable, that is, it should also be usable for stacking unfolded sheets, and in addition, the physical effort of the operating personnel in the sense of humanizing the work should be reduced without impairing productivity.

This object is achieved according to the invention in a device of the type mentioned at the outset in that the stacking magazine is arranged on a movable or movable table which, however, can be locked in predetermined positions, and sides defining the stacking space of the magazine has guides and that the front side guides closest to the edges of the table carry brush strips over at least part of their vertical extent, the bristles of which at least partially engage in the stacked sheets and their leaves.

The arrangement of the at least one stacking magazine on a movable or movable table, which can be locked in predetermined positions, creates the possibility of providing several stacking magazines which, when the desired stacking height is reached, move from the discharge position aligned with the sheet feeding station into one or more further positions can be either press and strapping stations or rest stations. In this way, a second or a further magazine can already be filled to form a new stack while the first stack is still being pressed and strapped or is waiting in a rest position until it is removed by the operating personnel. This results in breaks for the operating personnel, which do not have a negative impact on the productivity of the system.

The special design of the side guides defining the stacking space of the magazine with integrated brush strips ensures that the different heights of folded sheets in the area of the fold on the one hand and in the area of the unfolded open edges on the other hand is compensated for in the simplest way because the bristles are in the stacked sheets and whose leaves intervene. The engagement of the bristles between the leaves not only has the effect of compensating for the different heights at the edges of the sheets, but at the same time has the effect that in the area of the open edges the sheet openings remain free for the escape of enclosed air cushions if and for as long as the stack is thrown off a pressing device is pressed together.

The brush strips used according to the invention are also very easily adjustable and adaptable to all paper qualities and sheet formats. The brush strips can be replaced easily overall, harder or softer bristles can be used, bristles of different diameters made of different filaments and different lengths can be used, the bristles can have the same or a continuously or discontinuously changing penetration depth over the entire height of the stacking magazine , so that the device can be individually adapted to any application.

The movable or movable table can have any shape and can either be linearly movable or rotatable about a fixed axis. Particularly preferred is the design as a rotary table, which is rotatably mounted about a vertical axis, so that several stacking magazines can be arranged on the table, and particularly advantageously three to eight such magazines. In this way, the main units of the device, i.e. the sheet feeding station and the station for pressing and strapping in predetermined positions, corresponding to the ascertainable positions of the movable or movable table, can be placed around the table in a space-saving manner, which is easily accessible from all sides and is ergonomically favorable arrange so that each magazine can move from one station to the next in a very short time by moving or rotating the table, while the separating device temporarily interrupts the shingled stream, but the delivery of the rotating machine supplying the shingled stream does not need to be stopped.

The other positions of the movable or movable table, which are free of units such as sheet feeding station or pressing and strapping station, are quiet positions in which the bundled, optionally pressed and strapped rods are ready for manual or mechanical removal by the operating personnel. If six or eight magazines are arranged on a rotary table, the operating personnel can, for example, wait until four or six magazines are filled in order to then remove the finished bundled bars at once. This reduces physical effort and the breaks are longer.

Instead of manual removal of the bundled bars, an ejection device with an associated transport route, e.g. a roller or roller table.

Advantageous embodiments of the device according to the invention are further characterized in that the side guides of the stacking magazines are releasably attached to the table and adjustable to the respective sheet format, and that the brush strips are releasably attached to the side guides and adjustable in terms of the depth of their engagement in the stacked sheets and their sheets are trained. This achieves the format variability required for the universal usability of the device and the adaptability of the device to different paper qualities and different types of folds.

In order to further facilitate the trouble-free removal of the bundled rods from the magazines and to reduce the risk of damage to the edges and corners of the sheets when removing the bundled rods, in a further advantageous embodiment of the invention an angle guide is attached to the front side guides, which encloses the front corners of the stacked sheets for protection against damage, but also for stacking one on top of the other, whereby these angle guides are preferably designed to be hinged or pivotable so that the front legs of the angle guides are not in the way when the rods are removed.

An embodiment is particularly advantageous in which the angle guides on the side guides by means of suitable guide means, e.g. Wedge surfaces and obliquely upwardly extending grooves with bolts engaging in the grooves are designed to be displaceable such that the front corners of the stacked sheets are freely accessible for removing the bundled rods. When using wedge surfaces and suitable guide means, the angle guides can be moved forward or to the side or swiveled at the same time, so that they are in no way a hindrance to the removal of the bundled rods.

An embodiment is particularly advantageous in which the angle guides are provided with plungers which carry rollers at their lower ends in order to be able to roll on the floor or on a supporting plate when the table is moving. If the plungers now interact with overrun cams, they are pushed upwards in predetermined positions when the table is moving or displaced, when they run up onto the cams and thereby move the angle guides in the manner described above, so that the bundled rods are unhindered from the magazines can be removed.

In a further embodiment of the device according to the invention, a holding rake for non-pressed and non-strapped counted sheet sections is attached to the side guides of the stacking magazines in a height-adjustable manner. In this embodiment, counted sheet sections of, for example, 20 or 30 individual sheets can be stacked and removed in cycles from a selectable working height that can be set by the operating personnel.

The device according to the invention can preferably be driven on its rollers with all of its units.

Finally, the sheet feed station can have a height-adjustable feed table, so that the device according to the invention can be adjusted to any delivery of a folding machine, printing machine or other rotary machine for taking over the sheets.

Finally, a strip marking device is advantageous for shooting marking strips between counted batches of sheets stacked.

• Fig. 1 ist, teilweise schematisch und teilweise im Schnitt, eine Ansicht einer Ausführungsform der erfindungsgemäßen Vorrichtung, wobei die Station zum Abpressen und Umreifen der in dem Stapelmagazin gebildeten Stange, der besseren Übersichtlichkeit wegen, um 120° gedreht, in Verlängerung der Zuführstation dargestellt ist;
• Fig. 2 ist eine Draufsicht auf das Ausführungsbeispiel gemäß Fig. 1, wobei die Preß- und Umreifungs­station in ihrer tatsächlichen Position darge­stellt ist;
• Fig. 3 ist eine Seitenansicht, teilweise im Schnitt, der Preß- und Umreifungsstation, wie sie sich im Zeitpunkt der Abpressung und Umreifung einer gebindelten Stange aus gefalztem Druck­bogen darstellt;
• Fig. 4 ist eine Draufsicht auf eine vordere Seiten­führung des Stapelmagazins mit Bürstenleiste, in geschlossener Stellung;
• Fig. 5 ist eine Draufsicht auf die vordere Seiten­führung gemäß Fig. 4, in geöffneter Stellung;
• Fig. 6 ist eine Vorderansicht einer Seitenführung mit geöffneter, stößelbetätigter Winkelführung;
• Fig. 7 ist eine Draufsicht auf eine Ausstoßvorrichtung mit zugeordneter Transportstrecke zum maschinel­len Ausstoßen der gebündelten Stangen; und
• Fig. 8 ist eine Seitenansicht einer hinteren Seiten­führung mit höhenverstellbarem Halterechen für nichtabgepreßte und nichtumreifte abgezählte Bogenpartien.

The invention is further explained below with reference to the drawing.

• Fig. 1 is, partly schematic and partly in section, a view of an embodiment of the device according to the invention, the station for pressing and strapping the rod formed in the stacking magazine, for better clarity, rotated by 120 °, is shown in the extension of the feed station ;
• Fig. 2 is a top view of the embodiment of Fig. 1, showing the pressing and strapping station in its actual position;
• Fig. 3 is a side view, partly in section, of the pressing and strapping station as it appears at the time of pressing and strapping a tied bar from a folded printed sheet;
• Fig. 4 is a plan view of a front side guide of the stack magazine with brush strip, in the closed position;
• Fig. 5 is a top view of the front side guide of Fig. 4, in the open position;
• Fig. 6 is a front view of a side guide with the ram-operated angle guide open;
• 7 is a plan view of an ejection device with an associated transport path for the mechanical ejection of the bundled bars; and
• Fig. 8 is a side view of a rear side guide with a height-adjustable holding rake for unpressed and unstrapped counted sheet parts.

The embodiment of the device according to the invention for producing bundled bars from paper sheets shown in FIG. 1 has a machine frame plate 1 with which the vertical axis 2 as the fulcrum axis for the rotatable rotary table 3 is firmly connected. A flange bearing 4, which is fixedly connected to the rotary table 3 with ball bearings on the axis 2, can be rotated by means of the drive motor 6 via the drive belt 7 and the drive wheel 5, the motor 6 being controlled by means of electronic switching means (not shown) in such a way that that the table can be locked in predetermined positions. The drive motor 6 is attached to the axis 2. On the underside of the rotary table 3, support rollers 8 are attached, which are supported on the machine frame plate 1 and roll on the machine frame plate when the table rotates.

Six stacking magazines 40 are arranged on the rotary table 3 at equal angular intervals (FIG. 2). The stacking space of each magazine 40 is defined by side guides 9, 9ʹ, 10. The side guides of the stacking magazines 40 are releasably attached to the table 3 and adjustable to the respective sheet format.

The front side guides 10 consist of a basic guide 11 (FIG. 4) which is adjustably attached to the rotary table 3, and of angular guides 12 which prevent the sheets 31 stacked in the magazine 40 from falling out by enclosing the front corners of the stacked sheets 31 . The angle guides 12 are laterally displaceable, foldable and / or pivotable on the basic guides 11 of the side guides 10 in order to make the bundled bars of paper sheets 31 stacked in the magazines 40 freely accessible and to enable them to be taken out of the magazines without hindrance.

Brush strips 13 are also releasably attached to the side guides 10. The vertically attached brush strip 13 can be adjusted to the type and format of the stacked sheets 31 by means of elongated hole fastening and clamping screw 32, so that the bristles 44 can protrude to different degrees into the stacking space of the respective magazine 40. The brush strips 13 are thus adjustable in terms of the depth of their engagement in the stacked sheets 31 and their leaves. The brush strips 13 can be inclined by means of the elongated hole fastening and the clamping screw 32, so that the bristles engage more in the upper region of the magazine 40 than below, or they can be found in an exactly vertical position (FIG. 6), so that the bristles 44 extend the same length into the stacking space of the magazine 40 over the entire length of the brush strips 13. Instead, however, brush strips 13 can also be used which are equipped with bristles 44 of different lengths or which carry bristles of different diameters or bristles made of different stiff materials.

A wedge-shaped sliding surface 14 with an upwardly sloping groove 15 is arranged at the top and bottom of the angle guides 12. A guide pin 16 is connected to the basic guide 11 and serves as a guide and stop for the groove 15. The basic guides 11 have at the points where the wedge-shaped sliding surfaces 14 abut, also wedge-shaped surfaces 14ʹ, so that the angular guides 12, when pressed or pulled up, move not only to the side but also to the front. The surface guide by means of the wedge-shaped surfaces 14, 14 'and the guide means 15, 16 thus ensures that the angle guides 12 swivel away sideways, so that the bundled rods from the magazines 40 can be conveniently manually, without hindrance and without risk of damage to the corners or edges of the individual sheets 31 can be removed or ejected by machine.

The displacement of the angle guides 12 on the sliding surfaces 14, 14ʹ can either be accomplished by means of a handle, not shown, or automatically by a plunger 17 with roller 18, which is passed through the rotary table 3 (Fig. 6), so that the roller 18 on the Machine frame plate 1 can roll when the table 3 is rotated about the axis 2. On the machine frame plate 1, cams 19 are attached in predetermined positions, on which the tappets 17 run with their rollers 18 as soon as the corresponding magazine 40 reaches the removal positions III to VI (FIG. 2) by rotating the table 3 about the axis 2. With the help of the plunger 17, the rollers 18 and the cams 19, the magazines 40 in positions III to VI are automatically opened by laterally pivoting the angle guides 12, but closed again with each rotation of the table 3 and only when one of the positions III is reached to VI opened again.

In the upper region of the side guides 9, 10, retaining flaps 30 are resiliently attached. The retention flaps 30 hold back the sheets 31 thrown from the sheet feed station 20 through the rollers 23 into the magazine 40, so that the sheets can only migrate into the magazine in one direction, but cannot move back. The brush strips 13 attached vertically to the side guides 10 end below the resilient retaining flaps 30. When the magazine is open (FIG. 5), the brush strips 13 prevent, among other things, the rod which is stacked in the magazine from accidentally falling out. The main purpose of the brush strips 13 is, however, to fan out the sheets 31 stacked in the magazine 40, so that their different heights in the area of the fold on the one hand and the open edges on the other hand are compensated for and at the same time it is ensured that the air enclosed within and between the sheets when Squeezing the stack can escape safely. For this reason, even with larger stack heights, the sheets are not crooked, but horizontal and flat, do not bulge and form a flat surface on the top for the subsequent sheets.

Behind the stack magazine 40 in position I (Fig. 1, 2), the drive motor 25 with drive spindle 26 for the stack carrier housing 27, which contains a drive for the stack carrier 28, is fixedly attached to the axis 2. In the stack carrier housing 27, the stack carriers are mounted in ball bushings, the stack carriers 28 preferably being designed as toothed racks and equipped with toothed drive means (not shown). The stack carriers 28 are moved into the stack magazine 40 between the stack guides 9 by means of the drive means mentioned and form a carrier for the stack. From the protective plate feed station 22, a base plate 38, which forms the stacking base, is first dropped into the empty magazine 40 in cycles. After reaching the desired stack height, a further plate 38 is thrown off the protective plate feed station 22 as a cover plate onto the uppermost sheet 31 located in the magazine 40.

A depressing die 29 with an eccentric drive 24 and drive motor 33 is fixed in place on the axis 2 above the stacking magazine 40 in position I.

A known strapping station 34, which is additionally equipped with a press ram 35 and a drive 36, is in position II in the illustrated embodiment.

At the sheet feed station 20, which is also known per se, a retaining device 21 for intermittently interrupting the shingled stream 37 with the formation of individual columns or partial sheds as well as optionally means for counting and aligning the fed sheets is attached. The sheet feed station 20 is adjustable in height so that on the one hand the inclination of the scale flow 37 can be changed and on the other hand a height adjustment to the delivery 20ʹ of any rotary, printing or folding machine is possible. A strip marking device 45 (FIG. 1) for shooting marking strips 46 between the counted portions of the sheets 31 stacked in the magazine 40 is located below the sheet feed station 20.

A stationary or rotatable ejector 41 is located behind the magazines 40 in at least one of the positions III to VI, with which the bundled and optionally strapped rods can be ejected from the magazine 40 onto a transport path 42 (FIG. 7) .

Finally, a holding rake 43 (FIG. 8) can be arranged on the side guides 9ʹ in a height-adjustable manner for low sheet stacks which are counted in batches but are not pressed and strapped.

The device according to the invention works as follows:

The shingled stream 37 of folded or unfolded sheets is conveyed to the rollers or rollers 23 with the aid of conveyor belts or belts and from there, with the sheet folded with the fold ahead, is thrown into the stack magazine 40. With the help of the retaining device 21, the shingled stream 37 can be interrupted without the conveyor belts having to be stopped.

Previously, the stack carrier 28 was moved into its uppermost position by means of the spindle drive 25, 26 and into the stacking space of the magazine 40 by means of the rack and pinion drive housed in the stack carrier housing 27. As long as the shingled stream 37 was still interrupted by means of the retaining device 21, a protective plate 38 was dropped from the protective plate feed station 22 onto the stack carrier 28 as a base plate.

The first sheet 31 of each column is thrown onto the base plate 38, all subsequent sheets onto the preceding sheet. With the help of the light barrier 39, which is part of an opto-electronic counting, control and switching device, not shown, the desired stack height is controlled and monitored. When the desired stack height or the desired number of sheets is reached, the shingled stream 37 is interrupted again by means of the retaining device 21 and, at the same time, another protective plate 38 is thrown out of the protective plate feed station 22 as a cover plate onto the stack formed in the magazine.

The stack carrier 28 moves downward in synchronism with the increase in the stack height in the magazine 40 with the aid of the spindle drive 25, 26.

As soon as the cover plate 38 has been thrown onto the stack, or before, as soon as a predeterminable arch column has been thrown, the depressing stamp 29 performs a stroke downwards at intervals and presses the cover plate or the uppermost arch of the last thrown column under the retaining flaps 30 and between them Brush strips 13, which are attached to the side guides 10 (intermediate pressure). As soon as the push-down die 29 has reached its starting position again, the retaining device 21 releases the sheet flow again and the next column can be thrown into the magazine 40. This process is repeated periodically, each time after a predeterminable number of sheets, until the magazine is filled or the desired stack height is reached.

When the stack carrier 28 has reached its adjustable lowest position, the scale flow 37, controlled by limit switches, is stopped. The stack carrier 28 is then moved back out of the magazine 40, the base plate 38 with the stack resting thereon resting on supports of the side guides 9, 9ʹ, 10. If the uppermost sheet 31 of the discarded stack does not yet have a protective plate 38 as the cover plate, this is now discarded and pressed under the retaining flaps 30 with the depressing stamp 29. The rotary table 3 is then rotated by 60 ° in the direction of the arrow (FIG. 2), as a result of which the filled magazine 40 moves up from the original position I into the position II and at the same time an empty magazine moves up from position VI into position I.

In the meantime, the retracted stack carrier 28 was moved back into the uppermost position with the aid of the spindle drive 25, 26. Once the clock movement of the rotary table has ended and the empty magazine moved up from position VI is in position I, the stack carrier 28 moves again between the side guides 9 into the empty magazine 40, after which a protective plate 38 is again thrown off as the base plate and the formation of a new stack, as above described, is started.

During the formation of the new stack in position I, the stacked sheets of the full stack magazine 40 in position II are pressed into a bar and strapped. This process is completed before a new cycle movement of the rotary table 3. The next cycle movement brings the magazine with the bundled, pressed and strapped rod into position III or into positions III to VI which are available as rest positions for the removal of the rods, from where the rods either manually or mechanically using the ejection device 41 can be removed.

Through the cams 19, which are only under positions III to VI, the angle guides 12 of the front side guides 10 are opened in positions III to VI, so that the rods can be removed; however, they close automatically during each cycle movement of the rotary table 3, so that the bundled rods, as long as they are not removed, cannot fall out unintentionally.

Claims (14)

1.Device for producing bundled bars from paper sheets, in particular from folded printed sheets, with a sheet feed station which has conveying means for feeding the sheets in the form of a shingled stream, a separating device for intermittent interruption of the shingled stream and optionally means for counting and aligning the fed sheets, at least one stacking magazine with a height-adjustable bottom, a station for the introduction of protective plates in the form of bottom and cover plates into the stacking magazine and with a station for pressing and strapping the rod formed in the stacking magazine, characterized in that the stacking magazine (40) on a movable or movable table (3) which can be locked in predetermined positions, and side guides defining the stacking space of the magazine (40) (9, 9ʹ, 10) and that the front side guides (10) closest to the edges of the table (3) carry brush strips (13) over at least part of their vertical extent, the bristles (44) of which are at least partially in the stacked sheets ( 31) and intervene their leaves. 2. Device according to claim 1, characterized in that the table (3) is a rotary table rotatably mounted about a vertical axis (2). 3. Apparatus according to claim 1 or 2, characterized in that a plurality of stack magazines (40) are arranged on the table (3). 4. Device according to one of claims 1 to 3, characterized in that the side guides (9, 9ʹ, 10) of the stacking magazines (40) on the table (3) releasably attached and adjustable to the respective sheet format. 5. Device according to one of claims 1 to 4, characterized in that the brush strips (13) on the side guides (10) releasably attached and are adjustable in terms of the depth of their engagement in the stacked sheets (31) and their leaves. 6. Device according to one of claims 1 to 5, characterized in that on the front side guides (10) angle guides (12) are attached which enclose the front corners of the stacked sheets (31). 7. The device according to claim 6, characterized in that the angular guides (12) are laterally displaceable, hinged and / or pivotable. 8. The device according to claim 7, characterized in that the angular guides (12) on the side guides (10) by means of suitable guide means (14, 14ʹ, 15, 16) are designed so that the front corners of the stacked sheets (31) for removal the bundled bars are freely accessible. 9. The device according to claim 8, characterized in that the angle guides (12) have plungers (17) with rollers (18) which cooperate with overrun cams (19). 10. The device according to one of claims 1 to 9, characterized in that on the side guides (9ʹ) of the stacking magazines (40) a holding rake (43) for unpressed and non-strapped counted sheets is height-adjustable. 11. The device according to one of claims 1 to 10, characterized in that it is movable with its all units on rollers. 12. Device according to one of claims 1 to 11, characterized in that the sheet feed station (20) has a height-adjustable feed table. 13. The device according to one of claims 1 to 12, characterized by an ejection device (41) with an associated transport path (42) for ejecting the bundled rods from the stack magazine (40). 14. The device according to one of claims 1 to 13, characterized by a strip marking device (45) for shooting in marking strips (46) between counted portions of stacked sheets (31).

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