EP1242217B1 - Method for cutting bond papers - Google Patents

Abstract

The invention relates to a method comprising the following steps: a stack of sheets is moved under a blade in order to cut a first free strip of the stack of sheets; the first strip is cut; the stack of sheets is subsequently moved, whereupon it executes a first rotation and is guided under the blade once again in order to cut a second free strip; the second strip is cut; the stack is subsequently moved, whereupon it executes a second rotation and is guided under the blade once again in order to cut a third free strip; the third free strip and successive stacks of bond paper strips are cut, and; the successive stacks of bond paper strips are cut into individual bond papers.

Description

The invention relates to a method for cutting stacked sheets of securities in individual securities as well a machine for the application of this method.

Such methods and devices are in the prior art Technology already known. Securities, in particular Banknotes are printed on sheets of one each certain number of these imprints of individual securities included, which are arranged in matrix form, that is in rows and columns, the total number of prints per arch of course from the dimensions of the arch and the Size of each imprint depends. Furthermore, between everyone Sheet margin and the imprints in each outer line or a free stripe remains in each outer column so that the Sheets with pliers for transport in the printing machines and when printing the actual securities on can be held on the rollers. These free Stripes also allow reference marks to be printed on each sheet, with which the register of the sheets can be guaranteed if successive Seamlessly overlay printing processes or seamlessly have to line up. This is also true important when using several different printing techniques be used at the same time and the bow one after the other goes through several machines.

After printing the individual securities, the Sheets stacked, each stack a certain number of sheets contains, for example 100. The sheet stacks are then fed to a machine which they stack out cuts individual securities, which then can be sorted to eliminate misprints, or in Packages can be packed. During the cutting process are the free stripes and the securities themselves cut.

There are several methods for cutting stacked sheets of securities to stacks of individual Known securities. For example, the Patent DE 195 15 705 such a method, according to which first the free strips with a certain knife are cut and then the individual securities with two other knives in two perpendicular to each other trending directions. So first the cut free strips and then the individual Securities.

This process and the machine for its implementation however, have several disadvantages. For example, doing so at least three different knives for cutting the Securities are used. Besides, at least three turns of the sheet stack required to make the four to cut free strips of the arches, causing the Execution time of this operation is increased.

Another cutting process with the associated one The device is described in US Pat. No. 4,283,902. To In this procedure, the two vertical stripes are first in the running direction of the sheet stack with two parallel ones Cut knives, then the sheets are perpendicular to the Cut direction in stack of strips and finally the securities after the application of banderoles cut individual securities. So you need here four different knives to get out of the sheet stacks Get stacks of securities.

The document DE 295 17 466 shows another Cutting process, which before cutting the Securities tapes four successive cutting stages having. After the first cut there are rotations of 90 °, then 180 ° and again 90 ° necessary.

Another is from US-A-4,850,257 Cutting process with the associated device known, where first strips with a 1. Knives are cut and then these strips be divided with a 2nd knife, whereby the first knife and the second knife perpendicular to each other are aligned.

The purpose of this invention is to improve known cutting method and the required Machines, especially by reducing the number of necessary operations for processing a stacked security sheet in a stack of individual Securities.

The invention particularly proposes a method with which the time required for cutting the Stacks of securities from the stacked sheets of securities can be reduced and at the same time fewer knives for this operation is needed.

The method of this invention is characterized by the Features of claim 1 defined.

Define dependent claims 2 to 5 special types of execution of the method.

In the independent claim 6 a Machine for applying the procedure after Claims 1 to 5 defined.

Define dependent claims 7 to 10 special embodiments of the machine according to the invention.

Figur 1 ist ein Blockdiagramm des Verfahrens zum Schneiden von Bogenstapeln.

Figur 2 ist eine schematische Ansicht einer Maschine für die Anwendung des Verfahrens nach der Erfindung, von oben.

Figur 3 ist eine schematische Seitenansicht der Maschine von Figur 2.

The invention is to be made clearer with the description of one of its embodiments and the associated figures.

Figure 1 is a block diagram of the method for cutting stacks of sheets.

Figure 2 is a schematic top view of a machine for applying the method of the invention.

Figure 3 is a schematic side view of the machine of Figure 2.

The cutting process is first described under Reference to Figure 1. According to the method of the invention In the first step, the sheet stacks are placed under the first Knife of the machine and there a first free Cut strips of the stack of sheets. This free one Strip lies between the edge of the stacked sheets and the rows, i.e. the rows or columns with Securities printing. The free stripe forms one Free space, in particular the grasping of the individual Bows made possible by pliers without the risk that the Imprints will be damaged. In a first step this first free strip is then cut ("cut 1 "in the figure) and perpendicular to the direction of the Sheet pile. After the first cut, the arches are with suitable transport equipment to the rear Turntable moves, which in itself from the prior art is known, for example from DE-A-4 037 099, and the sheet stack is turned on the turntable Rotated 180 °. The sheet stack is then under the first knife and it is a second cutting process ("Section 2" in the figure) on a second free strip parallel to the first free strip mentioned above executed. After this second cutting process, the Sheet stack moved back to the turntable and rotated another 90 °. The sheet stack will then again under the first knife and it becomes a third cutting process ("cut 3" in the figure) on one third free stripe perpendicular to the first two free strips that have already been cut executed. Without further rotation of the sheet stack now the stacked sheets of securities with the first knife cut into successive parallel strips the stack by one stripe width each time is continued. This operation of cutting in successive strips is always with block in FIG "Section 3" shown because it is from the first knife after the Cutting the third free strip is performed.

Each of these strips is in one Strip collectors collected. Become the strip collector then the strips moved on and by a second knife cut into stacks from individual securities ("Cut 4 "in the figure). The successive stacks from individual securities are made out of the machine transported out and the known final Processing operations, such as counting of securities, attaching banderoles or forming Packages, each with 1000 consecutively numbered securities, in a magazine.

A cutting machine 1 for the application of the The method according to the invention is schematically below Described with reference to Figures 2 and 3. The sheet stack 2 with the security imprints are made manually or automatically loaded into the cutting machine 1. The stacked, printed sheets contain the imprints arranged in rows and columns and four free strips 3, 4, 5 and 6 between the sheet edge and the Print lines or columns. With the help of a feed system with pliers 7, 8, the sheet stack 2 is under a first Knife 9 for the first cutting process, namely that Cutting the free strip 3 between the front edge of the stack 2 in the running direction and the first parallel to the first knife 9 row Security printing, led. The tong feed system is a known system, for example with pliers 7 a chain 8 or on a corresponding one rail-guided system for the precise moving of the Sheet stack 2 is executed. Then the first knife 9 controlled and cuts the first free strip 3 of the Sheet stack 2 in the vertical direction. The system with Tongs 7, 8 then move the sheet stack 2 onto one Turntable 10 to the rear. This turntable 10 is in classic design from a turntable, the with a motor 11 via a schematic in Figure 3 shown axis 12 is driven. The position control the motor 11 takes place via a suitable electrical or electronic control. The turntable 10 leads to the Place the sheet stack 2 in the correct position on the First turn the plate by 180 ° so that the edge sheet stack 2, which is now on the side of the first Knife 9 is the first cut cut edge is opposite. The sheet stack 2 will then via a feed 13 which is above the sheet stack 2 passed and at the first cut edge of the Stack 2 rests, again guided under the first knife 9. The first knife 9 is lowered and cuts the second free strip 4 of the stack 2 in the second cutting process. After this second cutting process, the sheet stack 2 with the system with pliers 7, 8 back on the turntable 10 moved back, this time a second 90 ° turn performs. With the feed 13, which on the 7 attached side, the sheet stack 2 is again passed under the first knife 9. After the two free Strips 3 and 4 of the two perpendicular to the first knife 9 trending edges of the stack 2 in the first two Cutting operations have already been cut, is now in the third cutting process the third free strip 5 cut and then without further rotation of the Sheet stack 2 consecutive security strip stacks 14 as shown schematically in Figure 2.

Each cut security strip stack 14 is captured with a second pliers system 15 and into a Alignment device transported where all Security strips are aligned. This Alignment device consists essentially of several movable stops 16, 17, 18, 19, 20 and 21 and after the strip stack 14 in a strip collector 28th collected.

As soon as the collector 28 contains a predetermined number of strips, for example all strips of a sheet stack, each strip stack 14 is removed from the collector 28, for example by moving the bottom of the collector 28 via a suitable mechanical or pneumatic device, which is shown schematically in FIG. 3 is shown as number 31, and transported with a suitable traversing system, in this case two plungers 23 and 24 arranged one behind the other, under a second knife 22 which is mounted perpendicular to the first knife 9. This second knife 22 then cuts the stack of strips 14 into stacks of individual securities 25, which are gripped after the cutting of pliers 26 and can be removed from the machine 1 with a third plunger 27. These complete stacks 25 can be fed to further machines for the final processing which is known from conventional technology, for example for counting the securities, providing banderoles or for packaging.
Thus, this machine 1 can work with the two knives 9 and 22 at the same time, ie, while the strip stacks of a sheet stack are cut into stacks of individual securities with the knife 22, the next sheet stack is already cut into strip stacks with the knife 9.

There will typically be a predetermined number on stacks 25 of individual securities into a package consecutively numbered securities in a complete Series bundled, for example 1000 securities. in the Example in Figure 1 is needed at the beginning, starting from the arrangement of the imprints in rows and columns (10 Rows and 5 columns), a stack of 20 sheets to make one to receive such a package with 1000 individual securities.

The numbering process for the individual Securities are known, they are those in the same row and column of securities on each Provide sheets with consecutive numbers, these consecutive numbering also in neighboring Stacking of securities is continued, so that with the second knife 22 cut sequence of stacks with individual securities are numbered consecutively. Become stacking these continuous stacks, you get one Package with consecutive numbering of the individual Securities, for example a certain series of 1000 Piece.

Furthermore, those entering this machine should Sheets should preferably be flawless, which means it should no need to be every single security check after it is packaged and banded. The sorting of the sheets is basically done before Infeed of the stacked sheets into the machine, so that the individual securities without errors and consecutively numbered can be bundled into packages.

The security strips are preferably vertical to the direction of the stack of sheets under the first knife 9 method. It’s just a second knife, that is perpendicular to the direction of the security strips is attached for cutting the stack of strips too Stacks of individual securities required.

The turntable can be before or after the first knife 9 be arranged in the running direction of the sheets. Run the stacked sheets one after the other into machine 1 one, the turntable should preferably be in front of the first knife 9 may be attached so that the cut of the free strips of a new stack of sheets already begin can, while the stack of securities from the previous sheet stack processed or to Stacks of securities are cut.

Claims (7)

1. A method for cutting sheet stacks, in particular stacked sheets of securities, into individual securities, which is characterized by the following steps:

   a sheet stack (2) is transported under a first knife (9) for the cutting of a first free strip (3) of the sheet stack,

   the first strip (3) is cut,

   the sheet stack (2) is displaced, it executes a first rotation of 180° and is guided under the knife (9) again for the cutting of a second free strip (4),

   the second strip (4) is cut,

   the stack (2) is displaced, it executes a second rotation of 90° and is guided under the knife (9) again for the cutting of a third free strip (5),

   the third free strip (5) and successive strip stacks (14) of securities are cut, and

   the successive strip stacks of securities (14) are cut into individual securities by a second knife (22).
2. The method as claimed in patent claim 1, characterized in that the cutting of the sheet stacks (2) runs at right angles to the running direction of the sheet stacks (2).
3. The method as claimed in one of patent claims 1 to 2, characterized in that the sheet stacks (2) are transported counter to their running direction in order to be rotated.
4. A machine for carrying out the method according to one of claims 1 to 3, comprising means (7, 8) for the transport of the sheet stacks (2) and means for cutting (9, 22) the sheet stacks (2) into stacks with individual securities (25), wherein the cutting means comprise a first knife (9) for cutting at least a first, a second and a third strip (3, 4, 5) of the sheet stacks (2) and for cutting the sheet stacks (2) into strip stacks (14) of securities, and a second knife (22) for cutting the strip stacks (14) of securities into stacks of individual securities (25), characterized in that the machine comprises a rotary table (10) with which the sheet stacks (2) can be rotated, the rotary table comprises a turntable (10) which is driven by a motor (11) which is operated by an electronic control in such a way to execute, after the cutting of the first strip (3), a first rotation of 180° and, after the cutting of the second strip (4), a second rotation of 90°.
5. The machine as claimed in patent claim 4, characterized in that the rotary table is accommodated in the machine (1) upstream of the first knife (9) in the running direction of the sheet stacks (2).
6. The machine as claimed in patent claim 5, characterized in that the knives (9, 22) are at right angles to each other.
7. The machine as claimed in patent claim 6, characterized in that the successive stacks of individual securities (25) are stacked to form packs (28) of securities.

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