Method for continuous control of production of machines for applying concealed marks to paper and device for realization of said method

IPC classes for russian patent Method for continuous control of production of machines for applying concealed marks to paper and device for realization of said method (RU 2262451):

B41F31 - Inking arrangements or devices (inking units for platen presses B41F0001400000; inking units for cylinder presses B41F0003810000; applying liquids or other fluent materials to surfaces, in general B05; for typewriters or selective printing mechanisms B41J)

Another patents in same IPC classes:

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Device is used for holding device with two construction elements moved relatively to one another in at least one direction, while at least one portion of holding device is connected to first element and at least another portion is connected to second element while portions of holding device are made with possible engagement under effect from friction locking. Holding device has at least three serially placed plated elements, which are connected in series to one portion or other portion of holding device. Each plated element by at least one friction surface is positioned with possible abutment to friction surface of adjacent plated element and plated elements for holding are made with possible pressing relatively to each other by pressing means. Plated elements are made with possible progressive motion relatively to one another in plane predetermined by friction surfaces.

System for dosage for paint rolling on shafts in printing press / 2258008

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Holding device / 2262450

Method for continuous control of production of machines for applying concealed marks to paper and device for realization of said method / 2262451

Paint mixer 1 is held and guided by stationary means under supports 2 and 3 above paint box, containing paint for applying concealed marks. Paint mixer is driven by changing direction on guiding means meant for it, and its end is dipped in paint. Into aperture 11 detector head is inserted in form of transformer with primary winding, meant to generate zero magnetic field, with adjustable ferrite core, mounted so that zero magnetic field is received for standard magnetic characteristic of printing paint for applying concealed marks, and with secondary winding, quitting balanced state and outputting a signal, if magnetic characteristic of printing paint, into which paint mixer end moves, changes. Output signal is sent to line 4 for transferring signal via sliding contact 6, while grounded pole is connected by means of wire 5 and sliding contact 7.

Painting apparatus / 2317896

The painting apparatus has a duction shaft, a scraper, pair of the walls of the paint box and a gear for displacing in the direction to external surface of the duction shaft, a gear for moving the duction shaft. The duction shaft is supported with an eccentric support with possibility of rotation. The scraper is located near the duction shaft. The distal end of the scraper forms a clearance relatively to the external surface of the duction shaft where paint must be fed. The pair of walls of the paint box is located in essence perpendicularly to the scraper and opposite to each other with a clearance in the axial direction of the duction shaft and is supported with possibility of moving in the direction to the external surface of the duction shaft and from it. The gear for moving the duction shaft turns the eccentric support for moving the duction shaft. The pair of walls of the paint box is displaced in the direction perpendicular to the line connecting the axis of the duction shaft and the turning center of the eccentric support.

Printing units of gravure printing machine / 2349459

Invention may be used in printing industry and is intended for application of paint by inkers onto image carrier. Inker unit of printing unit comprises at least three inkers. Working part length of every inker is less than length of master cylinder working part. According to the first version of printing unit, inkers are installed so that they may move independently on each other. Inkers are installed at least with partial submersion into common bath with paint. According to the second version of printing unit, inkers are located overlapping each other in axial direction of master cylinder.

Printing ink transfer adjustment method / 2370371

Invention refers to printing industry, and namely to printing ink transfer adjustment method. That method consists in the fact that the first roller located in the printing machine inking mechanism transfers the printing ink to the plate cylinder; at that, by means of the thermostating system including the adjusting device there set is temperature on the side surface of the first roller and on the side surface of the plate cylinder, and thermostating systems set the printing ink parametre; at that, the printing ink supplied with the first roller and decreasing with increase of production speed (V) of the printing machine is compensated by reduction of the printing ink viscosity, which is caused by the temperature set on the side surface of the first roller, and the second parametre of the printing ink, which is set on the side surface of the plate cylinder, refers to its viscosity, and increase of viscosity of the printing ink determined by increase of production speed (V) of the printing machine and transferred to the print carrier is compensated by increase of the temperature to be set on the side surface of the plate cylinder.

Printing systems with at least two interacting cylinders / 2371318

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System for replacement of printing cartridges and method for replacement of printing cartridges / 2376144

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Insert of reservoir for paint / 2377129

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Printing devices of printing machine / 2377130

Invention is related to printing devices. Printing device of printing machine comprises transfer cylinder (06), master cylinder and the first roller (28) of inker (08), which interacts with master cylinder as inking roller (28). The first roller (28) substantially has the same diametre as master cylinder (07). Axes of rotation of master cylinder (07) and attached transfer cylinder (06) in working position create plane (E), besides in working position plane (A) with the help of axes of rotation of inking roller (28) and master cylinder (07) creates with plane (E) with the help of axes of rotation of master cylinder (07) and transfer cylinder (06) maximum angle δ 45°. Besides master cylinder (07) and/or transfer cylinder (06), as well as the first roller (28) are arranged with the possibility of shifting with the help of moving component in direction of transfer cylinder (06), and under plane (E) there is the second roller (33; 26), which interacts with the first roller (28).

FIELD: equipment for applying concealed marks.

SUBSTANCE: paint mixer 1 is held and guided by stationary means under supports 2 and 3 above paint box, containing paint for applying concealed marks. Paint mixer is driven by changing direction on guiding means meant for it, and its end is dipped in paint. Into aperture 11 detector head is inserted in form of transformer with primary winding, meant to generate zero magnetic field, with adjustable ferrite core, mounted so that zero magnetic field is received for standard magnetic characteristic of printing paint for applying concealed marks, and with secondary winding, quitting balanced state and outputting a signal, if magnetic characteristic of printing paint, into which paint mixer end moves, changes. Output signal is sent to line 4 for transferring signal via sliding contact 6, while grounded pole is connected by means of wire 5 and sliding contact 7.

EFFECT: higher efficiency.

2 cl, 10 dwg

The technical field to which the invention relates.

A widespread practice is the inclusion of an invisible protective elements in the ink for printing the secret signs. These elements are used to allow end-users such as banks and companies engaged in the sort of cash to identify counterfeit banknotes and to distinguish them from the genuine by checking their invisible elements.

Up to the present time the usual practice was to test invisible characteristics of inks for printing of secret characters that are used as protective elements at the end of the printing process. This leads to the fact that the absence or defect of such protective elements (which may be, for example, if you inadvertently mixed ink of the same or the same color, but without the invisible characteristics) discover only after all operations in the process of printing will be performed. In the case of printing banknotes, for example, the lack of an invisible protective elements can lead to a large number of defective banknotes or to the fact that the usefulness of the protective element will be zero and it will become useless.

The invention

The aim of the present invention is to eliminate this drawback by standing mo is itoring printing ink, which should contain an invisible element, in a colorful box, resulting in the ability to identify possible missing or dissolution of the invisible element at the time of printing. This allows you to quickly locate the error and to separate the sheets with the wrong paint on sheets of good printed paint. When this is fully preserved function that must be performed by the protective element, and shun marriage, representing the printed sheets.

With this purpose in accordance with the present invention, a method for the continuous control of production machines for drawing on paper secret characters, containing at least one colorful box containing printing ink for printing the secret signs with invisible characteristic, according to which the detector characteristics of printing ink with sensitivity in the range corresponding to the specified protective element, is integrated into a movable element, a shift in colorful box, and the detector output signal is continuously captured and transmitted to the warning.

The invention also relates to a device for implementing the method, in which the detector characteristics of printing ink is built into krasnoselka, finger-containing element, the tip of which takes place in a colorful box, is that the finger element is continuously shifted in a colorful box and the detector characteristics of printing ink has an output connected to a warning device.

The embedding of the detector characteristics of printing ink in krasnoselka particularly preferable, because it provides the possibility of defining characteristics in the colorful box, at the time of printing, but also because the detector is continuously shifted in a colorful box, therefore, it is possible to detect the introduction does not meet the specified requirements of printing ink at the very moment when the printing ink is poured in a colorful box.

Another preferred execution of the invention are set out in the accompanying claims.

Brief description of drawings

The invention is explained in more detail below with reference to the above as an example of its implementation are presented in the accompanying drawings, on which:

figure 1 represents the image in the ISO krasnoselka according to the invention, interacting with a colorful box in the car for use on paper the secret signs;

2 and 3 are respectively a cross-section view in plan of the main part of krasnoselka;

4 is a view in plan of the upper side of the supporting printed circuit Board conductors carrying diagram of the sensor and attached to the underside of the main part of crashme Alki;

5 is a cross-section of the transformer with a ferrite core, which forms the main part of the sensor;

6 and 7 are respectively side views and a plan schematically showing a reference sensor Board;

Fig is a schematic depiction of an example of the arrangement of sensor installed on the supporting Board sensor;

Fig.9 is a block diagram of an example of a control unit;

figure 10 - image in the isometric case for support structure krasnoselka;

11 and 12 is a partial schematic cross section of two embodiments of the end part of the finger element krasnoselka.

Detailed description of the invention

The device shown in figure 1, contains krasnoselka 1, mounted and guided on a colorful box so that the tip of krasnoselka immersed in a colorful box. This krasnoselka itself known. Two supports 2 and 3 secured to the side walls colorful box and are used to support the carriage (not shown) with a driving tool, which tells krasnoselka 1 continuous movement with change of direction between the two supports 2 and 3. Two wires 4 and 5 are connected respectively to ground and to a source of constant low voltage. They serve the current supplied through the cable bus 32 through two sliding contact 6 and 7 respectively ferromagnetic device is defined for the I characteristics of printing ink, as will be shown below. Krasnoselka 1 contains the main body or finger 8 and the holding part 9, which are connected to each other by screwing, and the data parts are made of non-magnetic metal, such as aluminum or aluminum alloy.

Figure 10 shows a variant implementation support krasnoselka made can be mounted directly to an existing node krasnoselka (not shown). There are two mounting element 51 and 52, designed for fastening the device to an existing node krasnoselka. This design avoids the use of any special mounting supports or holes on the machine and provides the ability to install the system in one operation together with krasnoselka on an existing node krasnoselka. Provides a cable connector 53, 54 for reception of cable bus 32, which feeds energy to the sensor and receiving signals from sensors installed inside the finger krasnoselka. The device further comprises a protective casing 55 for power cable and a cable for signal transmission, to ensure that there will be no interruption in the flow signals accumulation of ink on the wires. Finger krasnoselka, which is not shown in figure 10, can be mounted on the holding part 9, similar to the AK shown in figure 1.

As shown in figure 2 and 3, the finger 8 has a triangular cross section having the shape of a pyramid [pyramid] tip. On the bottom surface of the finger 8 mounting recesses 34 and 10, designed to host Board 14 carrying the scheme of the sensor 17, and the cylindrical holes 11 and 12 pass through the entire thickness of the finger 8 on both ends of the narrower mounting recess 34. The mounting recess 34 is closed and sealed by the bottom of the thin plate 13.

The detector characteristics of printing ink (figure 4, 5, 6) contains several components mounted on a rigid supporting Board 14, which is inserted into the mounting recess 34. Card 14 carries a pair of printed insulated copper conductive tracks 15 and 16, a diagram of the sensor 17 and the head 18 of the sensor with ferromagnetic transformer. From figure 2 and 4 it is seen that the circuit 17 of the sensor is placed in the mounting recess 10, while the head 18 of the sensor is placed inside the hole 11. Board 14 is attached to the pin 8 with pin 19 and screws 20. The screw 20 provides electrical contact between the metal pin 8 and the grounded pole of the circuit of the sensor, which will be described below. Output connectors and providing a constant low voltage to the contact 21 of the circuit 17 is inside the hole 12, where it connects with a sliding contact 6. On the contrary, C is semlali contact scheme 17 leads to the moving contact 7, connected to the rear end of the metallic pin 8.

In accordance with the variants of the implementation of the finger 8, partially shown at 11 and 12, the head 18 of the sensor is located at the very end of the finger 8. These options for implementation provide the ability to define the characteristics of the ink even when the lower part of the colorful box there is a small amount of ink.

5 and 6 show different parts of the sensor.

Figure 5 is a cross-section of the detector 18 with ferromagnetic transformer. Nylon housing 23 has a cylindrical through hole 35 with a threaded upper portion and an enlarged lower smooth part. The bolt 24, is screwed into the hole 35, serves to support the ferrite core 22 and directs it, thus the height of the ferrite core 22 within the openings 35 can be adjusted. The outer upper part of the housing 23 is made with three coaxial coils L1, L2, L3, which are connected in the circuit 17 of the sensor in such a way that they form a transformer, the primary winding of which is formed by coils L1 and L3, while the secondary winding is formed by a coil L2.

It was found that such a construction with three coils proved to be particularly preferred in comparison with other types of transformers, which since it provides very high accuracy and is less affected by external magnetic materials.

Coils L1 and L3 are connected in such a way as to ensure the creation of opposing magnetic fields. They are excited by the amplitude of the sinusoid, stabilized by conventional means. The ferrite core of the transformer induces in the secondary coil L2 is equal protivoelektrodvizhushchej force, so that at the end clamps creates a nominally "zero" output signal. In the experimental embodiment of the invention the coils L1 and L3 were respectively 190 and 210 turns, and "zero" output signal was obtained by adjusting the position of the core in the hole 35, depending on the intensity of the magnetic characteristics typically found in the printing ink designed for application on paper the secret signs and available in a colorful box.

If the physical properties of the magnetic ink changes, an electromotive force in the secondary coil L2 "out of balance" and leads to the formation of the resulting difference voltage and phase on the coil. The same thing also happens if the magnetic characteristic of the unintended image will appear in the printing ink, which should not have similar characteristics. Good job of the sensor is strictly dependent on the methods of winding, the choice of magnetic shielding material, and other factors.

Diagram of the sensor, indicated generally the reference nom the ROM 17, designed to process signals from the coil L2. As shown in the block diagram depicted in Fig, the sensor circuit includes a regulator/filter 26 at the input 30 of the scheme, the causative agent of 27 lines, the circuit 25 of the phase demodulator, the generator 28, which creates harmonic vibrations can excite the primary coil of the transformer 18. The filter 29 receives the output signal of the secondary coil L2. The output signals from the coils are routed through out phase-sensitive demodulate circuit element represented by the demodulator 25 and the causative agent of 27 lines in the input/output circuit 15 DC voltage.

The output 31 of the circuit 17 of the sensor is connected to the block 33 by wires 4 and cable bus 32.

Schematic representation of a variant of implementation of the scheme of the sensor is presented in example Fig.

Finally, the unit 33 of the control, corresponding to the scheme shown in figure 9, provides the ability to determine the beginning of what actions should cause the signal from the detector characteristics of printing ink: transmit a warning signal to the printer, stop the machine, move the "tainted" leaves in piles of waste, etc. It also can issue various commands (CH-A, CH-B) various detectors associated with many colorful boxes in this printing machine, in the example, with two colorful boxes for the control unit in figure 9.

The control unit is presented on figure 9, has three connectors, one 41 for the machine and one 42, 43 for each detector. Connector 41 provides power supply for the control unit and the transmission of the sensor signal and output signal to the machine control. Block pathogen line provides power to the detector head by two sensing resistors. Data from the detector is transmitted to the control unit via a power bus with, for example, modulated rectangular signal with a frequency of 800 kHz. Block level Shift and filter 44 converts the signal received from the line detection, in logical value. This digital signal is filtered to highlight the analog values depending on the fill factor and is sent to the block 45 comparison. The specified Comparer converts the analog level into digital data before feeding the signal to the microcontroller 46. Thresholds for block comparison can be set using external switches the Selectors sensitivity 47, 47'. Another block comparison Unit comparing the electric circuit of the detector" 48 monitors the status of the electric circuit of the detector: working, broken, short-circuited. The microcontroller 46 provides control of all these data and all output signals of the control unit (LEDs, relays and two open collectors). Digital filter inside the microcontroller 46 protects against electrical noise, fast short circuits or fast interrupt signal on both circuits of the detector.

The primary voltage source is a constant current source with a voltage of 24 V, control in which the control unit is carried out using two regulators 49: switching regulator, designed for 12 V, and the linear regulator to the 5th Century

Despite what was described detector magnetic characteristics of printing inks for use on paper the secret signs, similar devices can also be used for monitoring other invisible protective elements, such as infrared radiation, fluorescence or phosphorescence.

Provided that the device is similar to the one described, can be used in all types of machines for applying the secret marks on the paper.

1. The method of continuous control of production machines for applying the secret characters, containing at least one colorful box with printing ink for printing the secret signs containing invisible characteristic, characterized in that the detector (18) the characteristics of the printing inks with sensitivity in the range corresponding to the protective element is inserted in item (1), obedennyi in a colorful box moreover, the detector output signal is continuously capture and transmit the warning device.

2. The method according to claim 1, characterized in that the element (1) is a mobile element, a shift in colorful box.

3. The method according to claim 1 or 2, characterized in that as the invisible characteristics using a predetermined magnetic characteristic, and use the detector characteristics of printing ink with a ferromagnetic sensor (18)which is sensitive to magnetic characteristics.

4. The device for implementing the method according to claim 1 or 2, characterized in that the detector (18) the characteristics of the printing ink is built into krasnoselka, finger-containing element (1), the tip of which takes place in a colorful box, with finger element (1) is configured to continuously move in a colorful box and the detector (18) characteristics of printing ink has an output connected to a device (33) warnings.

5. The device according to claim 4, characterized in that it contains a stationary guiding means for guiding movements of the finger element (1), and guiding means has a pair of electrically conductive paths (4, 5)connected to the detector (18) characteristics of printing ink by means of the sliding contacts (6, 7).

6. The device according to claim 4 or 5, characterized in that the detector characteristics of PECs is Noah paints made with the possibility of controlling magnetic characteristics of printing inks for the application of the secret signs, the detector contains a ferromagnetic sensor (L1, L2, L3, 22)connected with the scheme (17) sensor, and a circuit (17) connected to the block (33) of the control.

7. The device according to claim 6, characterized in that the sensor includes a ferromagnetic ferrite core (22) and an associated set of coaxial coils (L1, L2, L3), all of these elements together form a transformer with a secondary winding (L2), which formed one of these coils is connected to the block (33) control through the scheme (17) of the sensor and electrically conductive paths (4, 5).

8. The device according to claim 7, characterized in that the ferromagnetic sensor contains three coils, with the primary winding of the transformer is formed by two end coils (L1 and L3), the secondary winding is formed by the third coil (L2).

9. The device according to claim 7 or 8, characterized in that the ferromagnetic coil of the transformer (18) fixedly mounted on a tubular support (23) of synthetic material and the ferrite core (22) is adjustable in its position inside the support (23) with screw (24).

10. Device according to any one of claims 4 to 9, characterized in that the detector characteristics of the printing ink located inside the tip of the finger member, the finger element is designed with the ability to continually move in a colorful box.