Apparatus for processing of printed paper sheets

FIELD: polygraphic industry, in particular, technique for processing of perfected paper sheets, in particular, bonds.

SUBSTANCE: apparatus has device for sequential feeding of sheets, transportation means, means for processing of said sheets, and means for sorting out of sheets into at least two paper sheet stacks. Indicated parts of apparatus are sequentially arranged in direction of advancement of said paper sheets. Means for processing of sheets has first print quality controlling device, device for applying series numbers and/or additional members onto sheets, second print quality controlling device adapted for controlling of applied numbers and/or images of additional members, and sheet marking device actuated in response to data generated by first and second print quality controlling devices for marking of sheets rejected by said first and second print quality controlling devices.

EFFECT: increased efficiency in carrying out of complex or part of said operations and provision for high-degree controlling of print quality.

12 cl, 5 dwg

 

The present invention relates to installations for the processing of paper sheets with double-sided printing, in particular securities, contains a device for the sequential feeding of sheets, means of transportation, means of processing these sheets and means for sorting at least two separate piles, and also the way to use this installation.

Machine for printing securities, such as checks, paper money, banknotes, become increasingly sophisticated in order to prevent counterfeiting, which greatly facilitated due to the current media playback.

The printing of securities includes double-sided printing on sheets of paper or roll on the ribbon, depending on the applied technology, the print quality control thus obtained sheets, drawing rooms and other additional elements, such as signatures on securities that meet the quality criteria, the formation of stacks of sheets of securities that meet the quality criteria, and the formation of a stack of defective sheets and, if necessary, the formation of the stack of sheets that have not undergone the necessary treatment due to outages or errors in processing. After this the leaves are securities that have passed quality control, cut into individual securities and the toilet is t for forming packs, previously putting them on a number. The drawing rooms on the securities may also be carried out after cutting, and not before.

The present invention relates, in particular, technological production process sheets that come out of the printing machine, which consists in controlling the quality of printing and applying them to the rooms.

Typically, installations for the processing of printed sheets contain devices that are only partially performing this processing, i.e. one setting controls the quality of the print and sort the leaves of accepted and rejected, the other setting causes of rooms, and the third prints additional elements, such as signature, date, etc., fourth controls numbered sheets before or after cutting (usually on the sheet, print n lines and n columns of individual elements), and so on.

The present invention is to provide a setting for the processing of printed paper sheets, which ensures that the execution of these operations or their parts.

The problem is solved by creating an installation for processing printed sheets, which is characterized according to the invention in that it includes means for monitoring print quality, tools serial printing of numbers and/or additional elements, means controlled what I applied numbers and/or additional elements, a means of marking sheets rejected a means of quality control.

The advantage of this setup is the ability to run at once complex operations, including the control of the print quality, consistent print numbers and/or additional elements, control the quality of the engraved numbers, markers rejected sheets and moving them to the appropriate stack.

According to a variant implementation to improve the efficiency of the unit is provided with a device for checking the marking of defective sheets.

When each sheet contains m lines and n columns of individual printed items, the serial numbers are applied only on those lists, all items which have been recognized as valid.

According to other variant number is applied to all recognized the usable elements, and the device for applying serial numbers to print a special character on the items rejected in the quality control of printing.

According to other variant controls print quality contain a device that allows you to monitor the availability and quality of items that are not visible to the naked eye.

The quality control sheets is carried out by means of different devices depending on the required accuracy of the test, as well as the type of the monitored image is Oia. For example, the quality control of black-and-white printing can be carried out using devices, relying at the same time the entire area of the sheet or securities, while checking color image requires precise control over each line on the sheet or securities. Devices differ from each other in construction, principle of operation and cost. Until now, users of such devices bought a separate installation for each type of test, which increased costs and required additional production space. Furthermore, in some installations, quality control of securities applied linear means of transport on which sheets of paper are laid flatwise, while these sheets are passing in front of the device, controlling the quality by reflecting the facial image, and before controlling device quality by x-ray. Such a device is disclosed in patent EP-A-0668577 and occupies a relatively large area, as the sheets pass in front of the three chambers flat device.

It is advisable to install the contained device that provides control of print quality by reflecting on both sides of the sheet and by x-ray, which occupies a relatively small horizontal area. Object of the invention is to provide is giving the possibility to change the type of control, that is, the use of the device quality control to ensure fast replacement optoelectronic control means, so as not to interrupt for a long time the production process to make the changes necessary when replacing various optoelectronic means of control.

Device quality control, included in the installation in accordance with the present invention, is characterized in that it includes a first group of rotor nodes capture sheets, rotating around the first axis, the second group of rotor nodes capture sheets, rotating around a second axis parallel to the first axis, while both groups are rotated synchronously in the opposite direction, and moving the sheet from the first group to the second occurs along the contact generatrix of the circular paths described by the specified blocks, so that each sheet describes a kind of S-shaped trajectory, sequentially turning on each of its sides to the two optoelectronic means control by reflection, one of the optoelectronic means of control by reflecting installed between the circular trajectory described by the sheet around one of the axes of rotation, and the specified axis, the other opto-electronic means of control by reflecting installed between the circular trajectory described by the sheet around a different axis rotation system-easy installation the I, and the specified axis, there is an optoelectronic monitoring device by scanning, which is installed between one of these circular trajectories and the corresponding axis of rotation.

The advantage of the device in accordance with the present invention lies in the fact that instead of passing on a flat conveying means controlled by the sheets move along the S-shaped path formed by two circular arcs, thereby reducing the horizontal area and used to control the vertical space.

The location of the optoelectronic controls within each of the affected leaves arcs reduces the overall space, as these funds are inside the space. Nodes capture from each group can be set either on the side of the drum with Windows, or fixed to the levers, a driven shaft mounted coaxially to the axis of rotation.

According to a preferred variant of the device run-time quality control nodes capture sheets installed on the wall of the frame, located perpendicular to the axis of rotation, optoelectronic control means mounted on the movable wall element parallel to and opposite the first wall and provided with means for moving it parallel to the axis of BP is tion and for access to said optoelectronic means for their maintenance or replacement of other optoelectronic means.

According to other variant execution device quality control contains two movable elements of the wall, which makes possible to remove the first element of the wall and replace it with the second element and to change thus the type of control over quality of banknotes, without stopping device for a long time.

Finally, the plant can be used in accordance with the variations in execution, it is possible to use the installation for implementing the same type of quality control of the print image, which is enough to disable the application of serial numbers and/or additional elements, while the sheet continues to move, or only the application of rooms with disabled optoelectronic monitoring, and the leaves are moved without control print quality. The installation according to the invention allows to carry out or complete the loop, i.e. quality control, printing of serial numbers and, if necessary, additional elements, the print quality control rooms, sorting of accepted and rejected sheets into separate parcels, or to carry out only the print quality control without drawing rooms, or to produce only print the serial numbers without control print quality, using the same installation.

In addition, you can con the role of print quality, for example, you can control the quality of each line of the image or the control of the entire leaf area.

Next is a detailed description of the invention with reference to the accompanying drawings, on which:

figure 1 depicts the setup for processing securities (side view) according to the invention;

figure 2 depicts a General view of the options for performing device control over quality of banknotes according to the invention;

figure 3 depicts a General view of the device of control over quality of banknotes with a movable wall element according to the invention;

figure 4 depicts the General view of the facility that contains the device shown in figure 3, according to the invention;

figure 5 depicts another embodiment of installations for the processing of securities, according to the invention.

Installation for processing printed paper sheets according to the invention contains the device 1 (Fig 1) for feeding printed sheets of paper S, for example securities, such as banknotes. The sheets S are received from the supply cylinder 2 on the drum 3 transportation and captured the first drum 4 rotating in the direction of the arrow F1. The drum 4 is equipped with clamps, allowing them to capture the leading edge of the sheet. In the drum 4 is made open for different kinds of quality control. The front side of the captured sheet must be visible from inside the drum is 4. First of all, inside the drum 4 is camera 5 quality control by x-ray, in front of the camera 5 on the outside of the drum is the device 6, the illumination on the opposite side of the sheet. Then the sheet is conveyed in the direction of the arrow F1 and passes in front of the optoelectronic means 7 control by reflection, illuminated by the device 8. While the sheet is held in the normal position of the suction device 9. In this case, the quality control of each line as the rotation of the drum 4 front of vehicle 7 quality control. After that, the sheet arrives at the point of contact of the drum 4 drum 10, enters the gripper drum 10 and passes in front of another optoelectronic means 7' control by reflection, where it is illuminated by the lighting device 8'. The same is the quality control of each line, as in the previous case, and the sheet is held in normal position by means of the suction device 9'. Drum 10 rotates in the direction of the arrow F2, the opposite direction of the arrow F1, so the transition from the drum 4 to the drum 10, the sheet S is rotated to the inside of drum 10 to its other side. The design of the drum 10 is identical to the construction of the drum 4. After that, the sheet is conveyed through a series of conveying cylinder 11 on pecat the second cylinder 12 with two elements 13 and 14 of the drawing numbers or alphabetic elements. On each of the printing elements 13 and 14 are coated with ink by the inking units, which are not the object of the present invention. The cylinders 13 and 14 is also equipped with a cleaning device, as is customary in this type of installation.

Advanced installation, you can provide additional unit 15 to print an additional element, such as a signature and/or date for the securities before applying them to the rooms.

The use of so-called "smart", that is, e, enumerators allows you to apply serial numbers to all the elements of suitable sheet or securities, or to fit the elements of all sheets. Thus, due to the potential application of rooms to fit all the elements after the control decreases the amount of waste. In addition, all the bad elements, you can apply a special mark (label) for the numerator, for example the number of strokes. When applying the rooms fit on the sheet, you can disable the enumerators during the passage of a defective sheet, for example, by assignment of the cylinder-enumerator that allows you to save a series of continuous when using non-electronic enumerators.

After application of the rooms leaves pass before optoelectronic means 17 quality control drawing rooms. After that, the sheet S is caught by the conveyor device 18 and held the it before marking device 19. Marking unit 19 causes a special character, i.e. marks, the upper part of the leaves, which turned out to be defective, or if the print quality control by transmission or reflection, or when passing through the device control application quality of rooms. The device 20 ensures that defective sheets were marked by the device 19, after which the sheets are submitted to the sorting device. It forms the first stack 21 of suitable sheets, the second stack 22 of defective sheets and can form a third stack 23, which may also contain suitable sheets or sheets that do not pass through the control and application of rooms due to a sudden interruption in the operation of the unit or errors during processing and intended for repeated passage through the installation.

It is necessary to emphasize an important feature of this installation, consisting of absolutely simultaneous interaction of all elements which are simultaneously driven, for example, by means of the Central actuator 24, which through a gear wheel or, for example, through a belt with projections results in simultaneous movement of the entire installation, which is a necessary requirement for this installation.

Figure 2 shows part of the installation, a dotted line in figure 1, designed to implement is tvline another type of print quality control. In this case, the elements 2 and 3 of the paper similar to the drums 4 and 10, the only difference is in the control system for sheets of paper by reflection. Optoelectronic means 25 scans the entire area of the sheet, i.e. provides less precise control, used more often for black and white printing. Another similar tool 25' allows you to control the other side of the sheet. In this embodiment, the device 26 print quality control by x-ray is inside the top of the drum. The sheets are held in normal position before means 25 and 25' of quality control by means of suction devices 27 and 27'. The device 28 illuminates the sheet with the other hand for quality control by x-ray.

Drums and 10 may be replaced by devices that exciting edge of the sheet and rotating it around the axis a or B.

Figure 1 shows the most complex design, which handles the stack of sheets S through the first print quality control through reflection and transmission, then, for example, using block 15 causes additional prints in the form of a signature or date or signature and date at the same time, then dealing rooms, control print quality, then skips leaves before marking device, causing the sign, signaling the marriage, then through us is the control device for the marking of the sheets, rejected during quality control, and then delivers the sheets to a filtration device suitable separating sheets from scrap or from sheets that were not processed during the control or drawing rooms.

As mentioned above, can be made less strict control, for example, for black-and-white images by using the device shown in figure 2.

To apply this setting is also possible to implement only part of the operations, for example, you can only control the quality, not causing rooms to securities. In this case, without changing the location of the various elements of the machine, to disable only the elements that cause the prints on the sheets, that is, the sheet S will follow the same path through a collection of elements, but it will be only through the means of quality control by reflection from two sides and probing, and then go through all the other elements and will get either a stack of suitable sheets or a stack of defective sheets.

Similarly, the unit can only be used for drawing rooms and an additional element, not conducting preliminary quality control, in this case, disable the optoelectronic means of control, i.e. the elements 5, 7, 8, 7', 8', and in another case, the devices 25, 25' and 26, the sheets pass through the drums 4 and 10 without quality control, and the ATEM come in the additional print device for drawing rooms, or other element, and finally, fall into one of the stacks 21, 22, 23.

Figure 3 shows the bed 100, containing the first wall 101, within which the various elements highlighted in figure 1 or in figure 2 by the dotted line, namely the transport cylinder 3, one of the output cylinder 11 and the drums 4 and 10.

The axis of the drum or rotor blocks mounted on the wall 101 of the frame, and various devices quality control (not shown) mounted on the movable element of the wall, moving perpendicular to the wall 101. Element walls equipped with various mounting brackets 102, 103, 104, 105, 106, 107, rigidly connected with elements 109 and 110, which are structures 111 mounted on the carriage 112, moving on rails 113, 114. This allows you to put on the frame 100, the entire complex optoelectronic means of quality control sheet or for maintenance or repair, or for replacement of these optoelectronic control means, for example, to go from the means shown in figure 1, the means shown in figure 2, and Vice versa.

Thus, by moving the design 111 forming part of the wall, parallel to and opposite the wall 101, you can easily make the necessary changes to the relevant conversion device quality control by replacing various elements.

According to a variant of execution, predusmotrennij two structures 111 with different items on one of them you can install optoelectronic means, shown in figure 1, and on the other the means shown in figure 2, which allows you to quickly change the type of control, replacing one design to another, without interruption for long term operation of the facility. The bed 100 is equipped with inspection hatches 115 that provides access to items inside the frame 100, for inspection or maintenance.

Figure 4 shows a fully configured installation corresponding to figure 1, except that at the end of the conveyor is provided with four stacks for folding sheets. Device quality control is shown with a movable wall.

This installation contains the device131(4) submission of printed sheets, two transporting cylinder132feeding the sheets to the device control over quality of banknotes by the double-sided reflection and by transmission.

The device contains two drum134and140. On the one side of the cylinder134is reflective optoelectronic device108quality control. The device checks the side of the sheet facing the outer part of the cylinder134. A similar device137is also outside of the cylinder140and controls the other side of the sheet, which in this case also moves along an S-shaped trajectory. Further, through transporting qi is indr 199 sheet is held on the conveying device, consisting of two cylinders 198 and 199, driving the transport device 196 type conveyor belt or conveyor, ensure the passage of the sheet before the device135quality control by x-ray. In this case, the control device of the printing quality by bilateral reflection and transmission is in the horizontal direction larger than the previously described device. Then through the transporting cylinder141the sheet is printed in a device similar to the previously described device for printing items such as signature, date and so on, after which the sheet is conveyed to the printing cylinder142for applying to a numbers using devices143and144. In this setting, also a print quality control (not shown). Next, by means of a conveyor device 118 sheets are fed to the device 119, 120 for marking defective sheets and inspect the marking of these sheets. After that, the sheets are folded in stacks 122, 123, if they be good, or go into device 121, if they prove to be defective.

In this installation, you can also provide an optoelectronic checker presence is not visible to the naked eye elements.

The system can operate in the previously described modes, i.e. for quality control p is chati additional elements, or only for quality control without drawing rooms, or just for drawing rooms without quality control by reflection and transmission. In this case, as in the previous embodiment, it is sufficient to disable the items that perform these functions, which allows to use the installation in various modes without significant modification.

If the quality control of devices137, 108 and135must meet certain criteria, you must replace these devices are the same device, as in the previous installation.

1. Device for processing paper sheets of double-sided printing, in particular securities, contains a device for the sequential feeding of sheets, means of transportation, means of processing these sheets and means for sorting sheets of at least two separate piles, characterized in that the said processing means includes spaced sequentially along the direction of movement of these paper sheets in the installation of the first means of controlling the print quality designed for quality control of printed sheets, the means of application of serial numbers and/or additional elements on the sheets, the second means of controlling print quality, designed to control the applied numbers and/or additional image elements the s, and a means of marking sheets, acting in response to the result of print quality control the first and second control means print quality for marking sheets, discarded the first and second means of quality control.

2. Installation according to claim 1, characterized in that it contains also a screening device marking defective sheets specified by means of marking sheets.

3. Installation according to claim 1, characterized in that it is designed for the processing of sheets, each of which contains a separate printed elements arranged in m lines and n columns.

4. Installation according to claim 3, characterized in that the said means of applying the rooms contains many devices for the application of the rooms intended for the numbering of the sheets, and the numbering is carried out sequentially by said devices for applying numbers to the items that are on the same sheet on which all the printed elements were considered fit for when print quality control the first means of controlling print quality, and the device for applying the serial numbers off when passing the defective sheet.

5. Installation according to claim 3, characterized in that the said means of applying the rooms contains many devices for the application of the rooms intended for the numbering of the sheets, and the numbering of exercises which I successively through said devices for applying numbers to the elements, printed on each sheet and recognized as valid when the print quality control the first means of controlling print quality, with defective items in each sheet are marked with a special sign devices for drawing rooms.

6. Installation according to claim 1, characterized in that the said first means of controlling print quality include optoelectronic monitoring device made with the possibility of quality control by reflecting on each side of the sheet and by x-ray.

7. Installation according to claim 1, characterized in that the said first means of controlling print quality contains optoelectronic controls the availability and quality of items that are not visible to the naked eye.

8. Installation according to claim 1, characterized in that the said first means of controlling print quality contains the first group of rotor nodes capture sheets, rotating around the first axis, the second group of rotor nodes capture sheets, rotating around a second axis parallel to the first axis, the first and second groups are rotated synchronously in opposite directions, and moving the sheet from the first group to the second group is carried out along the contact generatrix of the circular paths described by the specified nodes, so that each sheet describes an S-shaped trajectory, turning alternately every the th of its sides to the first and second groups optoelectronic devices quality control by reflection, when this first optoelectronic device quality control by reflecting located between the circular trajectory described by the sheet around the first rotation axis, and the second optoelectronic device control by reflecting located between the circular trajectory described by the sheet around the second axis of rotation, with optoelectronic monitoring device by scanning also is located between one of the pivots.

9. Installation according to claim 8, characterized in that the said first means of controlling the quality of printing comprises a frame, with rotary nodes installed on the first wall of the frame and the wall perpendicular to the first and second axes of rotation, and optoelectronic devices quality control is installed on the movable wall element parallel to and opposite the first wall, with the movable wall element provided with means providing for its movement parallel to the first and second axes of rotation, to provide maintenance and replacement of these optoelectronic devices quality control.

10. Installation according to claim 9, characterized in that the said optoelectronic device control quality print mounted on two movable wall elements.

11. Installation according to any one of claims 1 to 10, characterized in that the printing means is located below the first means to the of ntrolle print quality with the ability to disable the settings for print quality control sheets.

12. Installation according to any one of claims 1 to 10, characterized in that the first means for controlling the print quality is located with the option of disabling the installation for the application of the rooms on the leaves and/or print additional elements on the sheets.



 

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