EP1341714B1 - Device and method for separating useful units of a printed sheet - Google Patents

Abstract

The separating device comprises a first cutting device (6-8) producing several longitudinal strips, a quality control device (2-4) and a second cutting device to cut the strips into units. There is a filtering device (26-28) between the two cutting devices for filtering out any strip with one or more faulty units.

Description

Device and method for separating the use of a printed sheet

The invention relates to a device for transporting strips lying side by side according to the preamble of claim 1. The invention also affects one Process for separating the benefits of a printed sheet.

Such a device and such a method are known from EP 02 48 307 A1.

This known device is used to put on a sheet on a variety useful in the form of notes, especially banknotes, printed ones Recognizing benefits, the printing of which has defects, the bow in the individual benefits disassemble, sort out the faulty ones and the faultless ones all the time number. For this purpose, a first cutting device for cutting the Sheet into a plurality of strips each comprising a plurality of uses, one Quality control device for detecting incorrect benefits and a second Cutting device provided for cutting the strips into individual panels. The Stripes are passed through a numbering system, which is based on the previous quality control received information about the location of the incorrect use on the strip is controlled so that a wrong use on remains unnumbered on a strip. Then the strips are used in individual ways cut up and the faulty ones are sorted out.

The post-published DE 199 39 164 A1 discloses a method for processing Substrates in which the print image is controlled with a number of benefits. Then the printing material is separated into individual benefits and incorrect benefits discarded.

EP 02 86 317 A1 shows a device for cutting a web into sheets. This Depending on a control, sheets are placed on different stacks.

The invention has for its object a device and method for Separate the benefits of creating a printed sheet.

The object is achieved by the features of claims 1, 15 or 16 solved.

The advantages that can be achieved with the invention are, in particular, that the Control of the method or the device is considerably simplified. By namely the strips that contain defective benefits even before they are separated into individual ones To be sorted out, the information about the location of the defective needs to be sorted out Use on a sheet or strip not saved and even with the Further processing of the individual benefits should not be considered.

In a first embodiment of the invention, one with a variety of uses printed sheet first of all from the first cutting device transversely to one Cut the transport direction of the sheet into strips. If in this case a streak due to an error, the resulting gap in be closed in a simple manner, that one possibly following strips of the same sheet and an additional strip of one subsequent sheet so as to add the one usually obtained from one sheet Complete number of strips. So a regular sequence of error-free Obtain strips that are processed with little administrative effort, e.g. B. can be numbered, isolated and banded.

In a second embodiment, a sheet is longitudinally in its transport direction in Cut strips. If one of these strips is faulty and is sorted out, it is it is advisable to remove it from a magazine by adding a replacement strip replace, which is inserted in the place of the sorted strip. That too obtained group of strips can be processed with little administrative effort become.

To sort out faulty strips as well as the subsequent processing lighten, it is useful if the strips cut from an arc across be spaced from the cutting direction.

Embodiments of the invention are shown in the drawings and are in following described in more detail.

Fig. 1

eine schematische Ansicht einer Vorrichtung, die in einer Anlage zum Vereinzeln, Banderolieren und Verpacken von frisch gedruckten Banknoten einsetzbar ist;

Fig. 2

eine perspektivische Ansicht einer exemplarischen Ansaugvorrichtung einer Walze;

Fig. 3

im Detail den Aufbau einiger Walzen der Vorrichtung aus Fig. 1;

Fig. 4a, 4b

einen Schnitt durch den Mantel eines Transferzylinders gemäß einer weiterentwickelten Ausgestaltung;

Fig. 5

eine schematische Darstellung einer zweiten Ausgestaltung der Vorrichtung.

Show it:

Fig. 1

is a schematic view of a device that can be used in a system for separating, banding and packaging freshly printed banknotes;

Fig. 2

a perspective view of an exemplary suction device of a roller;

Fig. 3

in detail the structure of some rollers of the device of Fig. 1;

4a, 4b

a section through the jacket of a transfer cylinder according to a further developed embodiment;

Fig. 5

a schematic representation of a second embodiment of the device.

Fig. 1 shows a schematic side view of a device according to the Contraption. Sheets on which banknotes are arranged in a row and column arrangement are printed by a sheet feeder, not shown, in the transport direction 01, d. H. in the direction of arrow 01, the device. The arc runs through First a quality control unit 02. This quality control unit 02 comprises two Control cylinder 03; 04. The structure of the two control cylinders 03; 04 is essentially equal. Your lateral surface has large cutouts, in front of which the supplied Sheets are held in such a way that the printed benefit, i.e. H. here the individual Banknotes, one for each inside the control cylinder 03; 04 attached CCD camera are visible. To the CCD camera, not shown, is one Evaluation unit connected, which is set up to errors in the print image of the individual banknotes. The arc runs through a gap between the two Control cylinder 03; 04 so that the CCD cameras of the two control cylinders 03; 04 are each able to inspect the front and back of the sheet and one Record information about the location of any incorrect usage on the sheet.

Following the quality control unit 02, a cutting device 06 for Cutting the sheet into a plurality of strips. In the 1 is a longitudinal cutting device 06, the Arch through cuts made in longitudinal strips parallel to its transport direction disassembled. Each of these vertical stripes corresponds to a column of row and Column arrangement of the benefits on the original arch. The Longitudinal cutting device 06 is constructed in a manner known per se from a roller 08, on which the bow is held and guided and the a plurality of revolving Has grooves on its peripheral surface, and an arrangement of on one common axis rotating circular knife 07, which interact with the grooves Disassemble the sheet into individual strips and tear off the side edges. The severed side edges are eliminated, e.g. B. by suction; the received Strips are attached to a transport element 09, e.g. B. transfer a transfer cylinder 09.

To the several output by the slitter 06 to be able to detect and transport adjacent strips; is the Transfer cylinder 09, as shown in more detail in FIG. 3, with an internal suction device 11 equipped with holes broken in the lateral surface 12 of the transfer cylinder 09 13 is able to suck up each individual strip and on a limited part of the circumference of the transfer cylinder 09 to hold the strip firmly against it.

Fig. 3 shows the transfer cylinder 09 partially cut away, so that the suction device 11 can be seen inside. The holes 13 on the lateral surface 12 are in rows grouped on several circulating belts 14, the number of these belts 14 and their Distance from one another is the number of those supplied by the longitudinal cutting device 06 Strips and their width corresponds. Inside the outer surface 12 are on a shaft 16 a plurality of suction elements 15 in the form of circular sector-shaped chambers 15. The shaft 16 and the chambers 15 thereon are stationary, whereas the lateral surface 12 rotates. The chambers 15 are connected to a suction line 18 guided in the shaft 16 Suction pump, not shown, connected. Slots 19 on the outer walls 21 of the Chambers 15 are arranged so that when the lateral surface 12 rotates, each a series of holes 13 moved in front of a slot 19. If the transfer cylinder 09 rotated in the direction of arrow 22 of FIG. 3, corresponds to that facing the viewer Front edge 23 of the chambers 15 the place where the strips from the transfer cylinder 09 be sucked in to be transported further by this in the direction of arrow 22 be, and the rear edge 24 facing away from the viewer is the place where the Suction effect on the strips ends and they detach from the transfer cylinder 09 again can.

The transfer cylinder 09 transfers the strips guided parallel to one another to one here referred to as discharge cylinder 26 cylinder 26, the structure of which is essentially also corresponds to the pattern shown in FIG. 3. A difference to the structure of the Transfer cylinder 09 can, however, lie in the fact that each with the discharge cylinder 26 Chamber 15 can be equipped with a valve to selectively Interrupt vacuum supply of individual chambers 15, d. H. the suction elements 15 to operate independently.

2 shows the transfer cylinder 09, the discharge cylinder 26 and a plurality of downstream cylinders each arranged in their interior Suction devices 11. The rear edge 24 of the suction device 11 of the transfer cylinder 09 lies on a formed between transfer cylinder 09 and discharge cylinder 26 Gap opposite the front edge 23 of the suction device 11 of the discharge cylinder 26, so that when the strips are transferred from the transfer cylinder 09 to the discharge cylinder 26 the suction of the transfer cylinder 09 stops at the moment when the Discharge cylinder 26 is used.

The discharge cylinder 26 rotates in contact with two transfer cylinders 27; 28, the are also equipped with an internal suction device. The suction device of the Transfer cylinder 27 is inactive in the normal state and it is equipped with a valve for selective loading of individual chambers 15 equipped with negative pressure. If in the quality control unit 02 has detected an error in a benefit, the Column of the sheet on which this benefit is located, and once the Strip of the sheet reach the transfer cylinder 27, that chamber 15 of the Transfer cylinder 27, which corresponds to this column, pressurized to the pull off faulty strips from the surface of the discharge cylinder 26. The Pulling off the faulty strip from the discharge cylinder 26 can thereby be made easier that the vacuum supply of the corresponding Chamber 15 of the discharge cylinder 26 is interrupted, provided that its chambers 15th are equipped with valves.

All strips on which no error has been found in quality control unit 02 is passed through the gap between the discharge cylinder 26 and the first transfer cylinder 27 unaffected and stick to the discharge cylinder 26 until they are high a gap to the second transfer cylinder 28 the end of the chamber 15 of the Reach discharge cylinder 26. At this gap, however, begins, as in FIG. 3 the chamber 15 of the suction device 11 of the second transfer cylinder 28. Those strips that reach this gap therefore detach from the surface there of the discharge cylinder 26 and pass to the second transfer cylinder 28.

The discharge cylinder 26 thus forms together with the transfer cylinders 27; 28 a Soft, depending on the quality either a waste tray 39 or one be further processed.

The waste tray 39 is in a plurality of transverse to the plane of FIG. 3 Subdivided subjects, their number and arrangement of the distribution of the Streak on the discharge cylinder 26 corresponds. So by simple parallel Promote each sorted strip to be fed to a tray that column of the original sheet from which the strip was cut. When a Malfunction of the printing press on which the sheets to be processed are printed a local unequal distribution of errors on the sheet, this is different numbers of strips, which are in the individual subjects of Collect waste tray 39, immediately recognizable.

The second transfer cylinder 28 transports the strips to a so-called Collection cylinder 29, which serves to sort out faulty strips by faultless ones complete. For this purpose, a magazine 31 is arranged on the collecting cylinder 29, that in a plurality of one behind the other perpendicular to the plane of FIG Compartments with flawless strips can be fitted. An output device 32 assigns each of the compartments has a suction head which can be moved vertically and in the longitudinal direction of the strips 33 with which a single strip can be removed from a compartment. Strips removed are transferred to the collecting cylinder 29 via several rollers 34 fed. The operation of the output device 32 is the same as that of the discharge cylinder 26 or that of the first transfer cylinder 27 so linked that whenever a Strip is sorted out from a compartment of the same column Magazine 31 removed a spare strip and thus synchronized the collecting cylinder 29 is supplied that the leading edges of the unsorted strips of the original sheet and the newly inserted strip on the collecting cylinder 29 lie on a common line. The arrangement of strips, which are then dated Collection cylinder 29 to a further transport element 36, for. B. a transfer cylinder 36 is therefore no longer distinguishable from an arrangement that alone would be obtained by longitudinally cutting a perfect sheet.

In a numbering unit 37 following the transfer cylinder 36, the individual Use this arrangement of strips in a simple manner and without large Control effort, especially without the need to possibly on the strips having to take existing misprints into account must be numbered consecutively.

A belt conveyor 38 transports the strips with the numbered ones Use for a second cutting device, not shown in FIG. 1, one Cross cutting device in which the benefits of the individual strips are separated. On Sorting out defective benefits is no longer necessary after the separation, as these have already been eliminated on the discharge cylinder 26. The benefits received can therefore without a further control and / or sorting step in the for banknotes collected, banded or packaged in the usual way.

Fig. 4 shows in its parts a and b a section through the lateral surface 12 of a Transfer cylinder 09 according to a further developed embodiment of the device of Fig. 1 to 3. In this embodiment, the outer surface 12 is made of a plurality of Segments 41 constructed, wherein in each segment 41 one of the bands 14 of holes 13 is formed. The segments 41 engage against one another in the axial direction slidable - into each other. 4a shows two segments 41 in one collapsed position, the smallest possible distance I between the Bands 14 corresponds, and the segments 41 at the time of the acquisition of Have strips from the slitter 06. In the course of the rotation of the Transfer cylinders 09 are, for. B. controlled by a cam, the segments 41st moved further and further apart until they reach the state shown in Fig. 4b, the corresponds to the greatest possible distance I between the bands 14. This is the state in which the transfer cylinder 09 at the time of transfer of the strips to the Discharge cylinder 26 is located. The strips are therefore on the discharge cylinder 26 with a distance I from each other that corresponds to the displaceability I of the segments 41 corresponds to each other. This distance I prevents the sorting out a faulty strip on the discharge cylinder 26 by hooking on adjacent ones Strip is disturbed. The spacing of the individual strips achieved in this way is also advantageous because it enables the strips to be further processed after Eliminate the faulty ones, such as separating and possibly the Banding are simplified.

After the strips have been transferred to the discharge cylinder 26, the segments 41 pushed back together so that they could take over another group of strips from the slitter 06 again in the configuration of FIG. 4a are located.

The chambers 15 of the suction device 11 of the transfer cylinder 09 are in this Design coupled to the movement of the segments 41 against each other axially displaceable so that the overlap of the rows of Holes 13 with the slots 19 is preserved at all times.

If the distance I from the gap between transfer cylinder 09 and discharge cylinder 26 on the one hand to the gap between discharge cylinder 26 and first transfer cylinder 27 on the other hand, along the circumference of the transfer cylinder 36 greater than the length of the Stripe is fixed, it is possible to move the segments 41 apart to synchronize with the rotation of the discharge cylinder 26 that they are completely in the time the stripes are between the two columns. On Tilting or skewing of the strips on the discharge cylinder 26 is so avoided.

5 shows a schematic view of a second embodiment of the invention. The Quality control unit 02 is identical to that already with reference to FIG. 1 . described As a cutting device 42 following the quality control unit 02 however, a cross cutting device 42 is provided here. Through this the Sheets each corresponding to the rows of the row and column pattern on it printed benefit divided into horizontal stripes. One following the Cross cutting device 42 arranged switch 43 depending on the at the Quality control unit 02 switched results back and forth so that error-free strips are fed for further processing (arrow 44) and defective be discarded (arrow 46). The switch 43 can, as indicated in FIG. 5, as pivotable flap be formed; An embodiment similar to that is also conceivable from the cylinders 26; 27; 28 constructed switch of Fig. 1. The further processing in Connection to the switch 43 can, for. B. look so that the horizontal stripes with the help of on side chains guided grippers in the rhythm in which they are from the Cross cutting device 42 are delivered, transported to a numbering 37 become. If there is no horizontal stripe on the numbering unit because this was previously has been sorted out, the numbers of the numbering unit to be printed are not passed on, and those numbers on a faultless sheet on its last stripes would have been printed on the first stripe of the following sheet printed. As indicated in FIG. 5, it is also conceivable initially a predetermined number of flawless strips on one of the switches 43 downstream feeder 47 and then collect the stack thus obtained further processing.

In both configurations described above, after sorting out the faulty stripes and, in the case of the first embodiment, replacement by error-free strips, the strips obtained can be processed easily, without one for individual strips or individual uses of a strip Special treatment is required. This results in a considerable simplification of the Control. Especially if no consecutive numbering of the received If the benefit is required, the first embodiment can also be omitted Collection cylinder 29 and the magazine 31 connected to it can be simplified in In this case, the strips are filled directly from the Transfer cylinder 28 forwarded to the second cutting device.

The device for transporting strips lying next to one another has first transport element 09 and a second transport element 36, with between the two transport elements 09; 36 a switch 26, 27, 28; 43 for sorting out Strip and an insertion device 29, 31, 32, 33 for inserting a replacement strip the location of a discarded strip is arranged. Turnouts 26, 27, 28; 43 is between two cutting device 06; 42 arranged. It is also between the first Cutting device 06 and the second an insertion device 29, 31, 32, 33 for Insert a replacement strip in place of a defective strip that has been sorted out intended.

LIST OF REFERENCE NUMBERS

01

Direction of transport, arrow

02

Quality control unit

03

control cylinder

04

control cylinder

05

-

06

Cutting device, longitudinal cutting device

07

circular blade

08

roller

09

Transport element, transfer cylinder

10

-

11

suction device

12

lateral surface

13

hole

14

tape

15

Suction element, chamber

16

wave

17

-

18

suction

19

slot

20

-

21

outer wall

22

arrow

23

leading edge

24

trailing edge

25

-

26

Ausschleuszylinder

27

Transfer cylinder

28

Transfer cylinder

29

collecting cylinder

30

-

31

magazine

32

output device

33

suction cup

34

roll

35

-

36

Transport element, transfer cylinder

37

numbering

38

Belt conveyor

39

Makulaturablage

40

-

41

segment

42

Cutting device, cross cutting device

43

switch

44

arrow

45

-

46

arrow

47

investor

I

distance

Claims (22)

1. Device for transporting strips lying beside one another, having a first transport element (09) and a second transport element (36), characterized in that a diverter (26, 27, 28; 43) for separating out strips and an insertion device (29, 31, 32, 33) for inserting a replacement strip in the place of a strip separated out is arranged between the two transport elements (09; 36), in that the diverter (26, 27, 28; 43) is arranged between two cutting devices (06; 42), and in that the insertion device (29, 31, 32, 33) for inserting a replacement strip in the place of a faulty strip separated out is provided between the first cutting device (06) and the second.
2. Device according to Claim 1, characterized in that the first cutting device (42) is a cross-cutting device (42).
3. Device according to Claim 1, characterized in that the first cutting device (06) is a longitudinal cutting device (06).
4. Device according to Claim 1, characterized in that a rejects store (39) for holding the strips separated out is arranged downstream of the diverter (26, 27, 28; 43), and in that the rejects store (39) has compartments in a number and arrangement corresponding to the number and arrangement of the strips cut out of a sheet.
5. Device according to Claim 1, characterized in that a device for spacing apart transversely with respect to the cutting direction the strips cut out from a sheet is arranged between the first cutting device (06) and the diverter (26, 27, 28; 43).
6. Device according to Claim 5, characterized in that the spacing device comprises a transfer cylinder (09) having a plurality of segments (41) which can be displaced axially in order to attract a strip by suction in each case.
7. Device according to Claim 6, characterized in the spacing between an acceptance nip and an output nip of the transfer cylinder (09) is greater than the length of the strips.
8. Device according to Claim 1, characterized in that the diverter (26, 27, 28; 43) has a plurality of suction elements (15) which can be actuated independently and in each case act on a strip.
9. Device according to Claim 1, characterized in that an insertion device (29, 31, 32, 33) for inserting a replacement strip in the place of a faulty strip separated out is provided between the first cutting device (06) and the second.
10. Device according to Claim 9, characterized in that the insertion device (29, 31, 32, 33) has a magazine (31) having compartments in a number and arrangement corresponding to the number and arrangement of the strips cut out of a sheet.
11. Device according to Claim 10, characterized in that the insertion device (29, 31, 32, 33) has a plurality of movable suction heads (33) which can be actuated independently and in each case act on a compartment of the magazine (31).
12. Device according to Claim 1, characterized in that a numbering unit (37) for numbering the useful units of the fault-free strips is arranged.
13. Device according to Claim 12, characterized in that the numbering unit (37) is arranged between the two cutting devices (06; 42).
14. Device according to Claim 13, characterized in that the numbering unit (37) is arranged after the insertion device (29, 31, 32, 33).
15. Method for separating useful units of a printed sheet, comprising the steps:

    determining fault-free useful units of the sheet;

    breaking down the sheet into a plurality of strips;

    separating out at least one strip which contains at least one faulty useful unit;

    replacing the strip separated out by a fault-free strip, the fault-free strip being supplied from a magazine (31).
16. Method for separating useful units of a printed sheet, comprising the steps:

    determining fault-free useful units of the sheet;

    breaking down the sheet into a plurality of strips;

    moving the strips apart transversely with respect to the cutting direction before separating out the faulty strips;

    separating out at least one strip which contains at least one faulty useful unit;

    replacing the strip separated out by a fault-free strip, the fault-free strip being supplied from a magazine (31).
17. Method according to Claim 15, characterized in that the sheet is cut transversely with respect to its transport direction (01) and the faulty strip is replaced by appending a strip from a following sheet.
18. Method according to Claim 15, characterized in that the sheet is cut parallel to its transport direction (01).
19. Method according to Claim 16, characterized in that the strips are moved apart transversely with respect to the cutting direction before the separating out faulty strips.
20. Method according to one of Claims 15 to 17, characterized in that the individual useful units are numbered.
21. Method according to Claim 20, characterized in that the numbering on the strips separated from the sheet and the strips possibly inserted for strips separated out is performed in parallel.
22. Method according to Claim 15, characterized in that the strips are broken down into individual useful units.

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