EP1167262A1 - Device for aligning and ejecting packets of loose stacked printed products - Google Patents

Abstract

The system for the alignment and ejection of bundles of loosely piled printed products consists of a feed conveyor (2), a bundling table (3), an ejector unit (7) and a delivery conveyor. At least one guide arm (13) on the output end of the bundling table and/or on the bundling table side end of the delivery conveyor (12) is brought to bear against the front side of an aligned bundle. The guide element which lies against the bundle is movable over at least a section of the delivery conveyor.

Description

The invention relates to a device for aligning and Ejecting packages of loosely stacked printed matter, consisting of an infeed conveyor and a parcel table and an ejection device for ejecting the aligned Packages, being an aligned package from the Ejection device transferred to a discharge conveyor becomes. - printed matter means especially catalogs, Prospectuses or magazines. These printed matter must after printing for storage and / or for the Transport to aligned and pressed packages be summarized. These are expediently Packages of printed matter preferably when aligning and / or electrostatically charged during pressing, causing the packets to fall apart in the course of further handling is prevented because of the printed matter effectively stick together. The latter Measure is called blocking.

With the device known from practice, of which the When the invention starts, the packages become loosely stacked Printed products aligned, pressed and with the help an ejection device ejected onto an outlet conveyor, the outfeed conveyor as an outfeed conveyor belt is trained. The ejection device has at least an ejection arm, with which a package each on the Outfeed conveyor or transferred to the outfeed conveyor belt becomes. With this known device there is a risk that that the aligned and pressed packages at Eject with the ejection arm or that the printed matter in the package is relative to each other move. It is understood that the storage and / or the transport of such packages is problematic or that these packages at least in part for further handling are unusable. To minimize this risk, the Outfeed conveyor or the outfeed conveyor belt in practice moved at relatively low speed and also the Ejection process is adjusted so that the result disadvantageous and unsatisfactory Working speeds and cycle times result.

In contrast, the invention is the technical problem based on a device of the type mentioned indicate with which the packages of loosely stacked printed matter ejected very reliably and on the Outfeed conveyors can be moved and that nonetheless with high speed or high cycle times can be worked.

The invention teaches to solve this technical problem a device of the type mentioned, which thereby is characterized in that at least one guide element it is provided which guide element at the ejection end of the Parcel and / or at the end of the parcel Outfeed conveyor on the front of an aligned Package can be brought to the plant and that on the package adjacent guide element over at least a portion of the discharge conveyor is movable. - The guide element supports the package on its front, so to speak at least along part of its way the outfeed conveyor. It is within the scope of Invention that the guide element with the Transport speed of the discharge conveyor and thus is moved synchronously with the outfeed conveyor. Conveniently, the guide element lies over most of the height of the of the respective package on the front. Preferably the guide element lies over at least 70% of the Height of the package at the front of the package.

According to a very preferred embodiment of the invention the ejection device has at least one ejection arm which ejection arm is an aligned package of that Parcel table can be transferred to the outfeed conveyor. The The ejection arm is preferably oriented vertically or essentially vertically oriented. Conveniently, the ejection arm is located at the rear end for ejection Package and pushes the package from the package table onto the Exit conveyor. So the package is in the process of ejection guided by the ejection arm at its rear end and supported. - After a very preferred embodiment of the Invention has the ejection device at least two ejection arms revolving periodically on an endless track. Preferably at least three are periodic Ejection arms provided. In the latter embodiment takes for example a first ejection arm aligned on the parcel table and preferably pressed Package and transports it to the outfeed conveyor. Then this first ejection arm moves continue on its endless path while a second package is on the parcel table is aligned and preferably pressed, which second package is then from the second ejection arm is taken along and ejected onto the discharge conveyor.

The second ejection arm is then on the endless path moved on and a third package is placed on the package table aligned and preferably pressed and then from the third ejection arm to the discharge conveyor brought. In the manner described three successively aligned and preferably pressed Packets each from one of this embodiment existing three ejection arms on the discharge conveyor pushed out. It is also within the scope of the invention that the ejector more than three on an endless path revolving ejection arms, which then eject arms in work as described. After a Embodiment of the invention, the ejection arms be cycled on the endless track. After a another embodiment, the ejection arms continuously moving on its endless path.

According to a very preferred embodiment of the invention Guide element designed as a guide arm. The guide arm is preferred as a vertical guide arm oriented.

A very preferred embodiment of the invention is characterized in that at the discharge end of the parcel table and / or at the packet-side end of the Outlet conveyor at least one ejection arm on the back of a package to be ejected while at the same time at least one guide element on the front of this Package is present. Part of the conveyor line of the So there is an ejection arm at the rear end of the package Package and is at the same time a guide element, preferably a guide arm at the front end of this Package. In this way, with the ejection process A very reliable function with the help of the ejection device Achieved leadership that ensures any unwanted displacements of the printed products in the package do not take place. In a subsequent area of Conveyor route of the package lies over the outfeed conveyor then expediently only the guide element, preferred the guide arm, at the front end of the package on.

According to a very preferred embodiment of the invention Guide element from a rest position into a Starting position at the end of the package table and / or at the end of the discharge conveyor on the package side transferable and is the guide element after its subsequent Movement in again via the discharge conveyor the rest position is traceable. According to this preferred The embodiment of the invention is therefore the guide element, preferably the guide arm, always between its rest position and the initial investment position can be moved back and forth. It is within the scope of the invention that in Range of the rest position at least a first sensor is provided, with the help of the movement of the Guide element is stopped in the rest position. It is also within the scope of the invention that in the range the initial line position at the discharge end of the parcel table and / or at the end of the discharge conveyor on the package side at least one second sensor is provided, with its Help the movement of the guide element towards the parcel table is stopped. It is within the scope of the invention that the guide element in its movement from the discharge end of the Parcel and / or from the parcel end of the Discharge conveyor to the discharge end of the Outfeed conveyor with one of the transport speed of the discharge conveyor moves at the appropriate speed. In other words, the guide element with the moves at the same speed as the package on the Exit conveyor. The guide element expediently comes at the discharge end of the discharge conveyor from the front end of the transported package freely and pivots to its rest position. It is within the scope of Invention that the pivoting into the rest position with higher speed than the previous movement of the guide element along the outlet conveyor.

The outfeed conveyor preferably has at least one outfeed conveyor belt on. According to a preferred embodiment the invention is on each side of the outfeed conveyor at least one side conveyor for the packages intended. It is within the scope of the invention that a side conveyor belt on each side of the outfeed conveyor is arranged.

The invention is based on the knowledge that with the Guide element according to the invention a very reliable and precise guidance and movement of one to be ejected Package is possible. Any will Movements of the printed products in the package at Ejection process or discharge virtually impossible. Also Damage to the printed products can occur due to the safe guidance can be avoided. Due to the extremely reliable management can Outfeed conveyor compared to the previously known Measures at a relatively high speed be driven. Accordingly, the entire Device with high clock speed or high Output work. This applies in particular to the Embodiment in which the guide element according to the invention is combined with an ejection device which at least two circulating on a continuous path Has ejection arms. A device according to the invention the latter combination works particularly well reliable and with particularly high work or Ejection speed.

Fig. 1

eine Seitenansicht einer erfindungsgemäßen Vorrichtung,

Fig. 2

eine Draufsicht auf eine erfindungsgemäße Vorrichtung in einer ersten Funktionsstellung,

Fig. 3

den Gegenstand nach Fig. 2 in einer zweiten Funktionsstellung und

Fig. 4

den Gegenstand nach Fig. 2 in einer dritten Funktionsstellung.

The invention is explained in more detail below on the basis of a drawing which represents only one exemplary embodiment. They show a schematic representation

Fig. 1

a side view of a device according to the invention,

Fig. 2

2 shows a top view of a device according to the invention in a first functional position,

Fig. 3

2 in a second functional position and

Fig. 4

2 in a third functional position.

The figures show a device for aligning, pressing and ejecting packages 1 loosely stacked Printed products. The device has an inlet conveyor 2 on the of the loosely stacked printed matter feeds a parcel table 3. The loosely stacked printed matter can, for example, scale-like superimposed with the feed conveyor 2 fed become. Are expedient and in the embodiment 3 package alignment plates 4, 5 arranged on the side of the package table, the to align the packages 1 together and can be moved apart. Furthermore, one on the respective package 1 attachable pressing device 6 for Pressing the packages 1 provided. It is still in the Within the scope of the invention that 1 Electrodes, not shown, of a charging unit are provided.

The device according to the invention has a Ejection device 7 for ejecting the aligned and pressed packages 1 on. After very preferred Embodiment of the invention and in the embodiment the ejection device 7 consists of at least two an endless web 8 rotating ejection arms 9. Preferably and in the exemplary embodiment, the ejection device 7 three periodically revolving on an endless path 8 Ejection arms 9 on. The three ejection arms 9 are each vertically oriented and are related to the endless path the same distance from each other. In the embodiment are the ejection arms 9 to one on the endless path 8 rotating toothed belt 10 connected, which Toothed belt 10 is driven by two pulleys 11.

One aligned and pressed on the parcel table 3 Package 1 is carried by an ejection arm 9 and on the outlet conveyor 12, which is preferably and in the exemplary embodiment is designed as a discharge conveyor belt, pushed out. Is preferred and in the embodiment the outfeed conveyor 12 perpendicular to the infeed conveyor 2 arranged. After ejecting a first package 1 with a first ejection arm 9, this first ejection arm 9 on the Continuous movement continues and then on the Package table 3 another package 1 aligned and pressed and then from the next ejection arm 9, the was moved on the endless track, taken away and on the discharge conveyor 12 ejected. A third package will be also aligned and pressed and then with the help the third ejection arm 9 on the outlet conveyor 12 expelled, and so on.

According to the invention, a guide element is provided which preferably and in the exemplary embodiment as a guide arm 13 is formed, which guide element at the ejection end of the Packet table 3 aligned to the front of one Package 1 can be brought to the plant. Fig. 2 shows the Guide arm 13 in an initial investment position on Ejecting end of the package table 3, in which Starting position of the guide arm 3 on the front of the package 1 located on the package table 3 is present. At the same time there is an ejection arm 9 of the ejection device 7 at the back of the package 1 now to be ejected. The ejection arm 3 is then in the direction of the discharge conveyor 12 moves, synchronizing with the ejection arm 9 and with the moving package 1 the guide arm 13 moved. The package 1 is then on the outfeed conveyor 12 ejected and the ejection arm 9 then moves up its endless path 8 continues, while the guide arm 13 continue at the front of the now on the Outfeed conveyor 12 transported package 1 is present (Fig. 3). It is within the scope of the invention that the Guide arm 13 at the transport speed of the Outfeed conveyor 12 moves.

The guide arm 13 comes at the end of the outlet conveyor 12 then free of the package 1 and swings into that in FIG. 4 shown rest position. It is within the Invention that this pivoting into the rest position with higher speed than the rest of the movement of the Guide arm 13 over the discharge conveyor 12. The package 1 is then discharged from the discharge conveyor 12. in the Following this, the guide arm 13 swings back into the Initial investment position back and is now on the Front of another package 1 on the Parcel table 3 is located. At the back end of this one Package 1 is now a second on the endless web 8 further-moving ejection arm 9. Now it repeats itself Sequence of steps described above. Preferably and in The guide arm 13 is therefore always an embodiment between its rest position and the initial investment position, in which he at the front end of a package 1 is applied, back and forth. It is expedient in A first sensor 15 is arranged in the rest position, with the help of the movement of the guide arm in the Rest position is stopped. It is also preferred in Area of the discharge end of the package table 3 a second Arranged sensor 16, by means of which the guide arm 13 is stopped in the desired initial investment position. - The discharge conveyor 12 also has in Embodiment a side conveyor for Packages 1 in the form of two side conveyor belts 14. Such a side conveyor has become part of the Invention particularly proven.

With the guide arm 13 is a very reliable Ejecting the packages 1 from the package table 3 as well as a very precise and reliable guiding of packages 1 on the Outfeed conveyor 12 possible. Any unwanted shifts of the printed matter in the package can not find instead of.

Claims (8)

Device for aligning and ejecting packets (1) of loosely stacked printed products, Consisting of an infeed conveyor (2) and a parcel table (3) and an ejection device (7) for ejecting the aligned parcels (1), wherein an aligned package (1) is transferred from the ejection device (7) to an outfeed conveyor (12), characterized in that that at least one guide element is provided, which guide element can be brought into abutment at the ejection end of the parcel table (3) and / or at the end of the discharge conveyor (12) on the parcel side on the front side of an aligned parcel (1) and that the guide element bearing against the package (1) can be moved over at least a partial area of the outfeed conveyor (12). Device according to claim 1, characterized in that the ejection device (7) has at least one ejection arm (9), with which ejection arm (9) an aligned package (1) can be transferred from the package table (3) to the outlet conveyor (12). Device according to one of claims 1 or 2, characterized in that the ejection device (7) has at least two ejection arms (9) which rotate periodically on an endless path (8). Device according to one of claims 1 to 3, characterized in that the guide element is designed as a guide arm (13). Device according to one of claims 1 to 4, characterized in that at the ejection end of the parcel table (3) and / or at the end of the discharge conveyor (12) on the parcel side, at least one ejection arm (9) rests on the back of a parcel (1) to be ejected, while at the same time at least one guide element bears against the front of this package (1). Device according to one of claims 1 to 5, characterized in that the guide element can be transferred from a rest position into an initial contact position at the ejection end of the parcel table (3) and / or at the end of the discharge conveyor (12) on the parcel side, and that the guide element after it has been connected Movement can be returned to the rest position via the outlet conveyor (12). Device according to one of claims 1 to 6, characterized in that the outlet conveyor (12) has at least one outlet conveyor belt. Device according to one of claims 1 to 7, characterized in that at least one side conveyor device for the packages (1) is provided on each side of the discharge conveyor (12).

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