EP0061596B2 - Machine d'impression avec moteurs de positionnement - Google Patents

Machine d'impression avec moteurs de positionnement Download PDF

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Publication number
EP0061596B2
EP0061596B2 EP82101616A EP82101616A EP0061596B2 EP 0061596 B2 EP0061596 B2 EP 0061596B2 EP 82101616 A EP82101616 A EP 82101616A EP 82101616 A EP82101616 A EP 82101616A EP 0061596 B2 EP0061596 B2 EP 0061596B2
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EP
European Patent Office
Prior art keywords
servo
machine according
signal
servo motor
motor
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EP82101616A
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German (de)
English (en)
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EP0061596A1 (fr
EP0061596B1 (fr
Inventor
Udo Blasius
Karl-Heinz May
Anton Rodi
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Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT82101616T priority Critical patent/ATE13995T1/de
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/16—Programming systems for automatic control of sequence of operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/045—Remote control of the duct keys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/47—Automatic or remote control of metering blade position

Definitions

  • the invention relates to a printing press according to Preamble of claim 1.
  • Such Printing machine is known from DE-A-24 01 750.
  • Comparison device when an adjustment process should cause the deviation between the target values and the respective actual values and saves the determined differences in a respective motor assigned Counter. While the servomotors are running are the individual counters by off voltage pulses obtained from an alternating voltage counted down and as soon as they hit the Have reached 0, the assigned one Actuator switched off. Will later Prompted a new actuation process, so the comparison device samples the actual values again cyclically, sets the counters again, and causes the Servomotors.
  • US-A-3 930 447 describes a control device for densitometer measuring heads above of printed sheets of paper to be measured laterally adjustable by means of servomotors are.
  • the target position is from a Computer entered in a register, and the Register content is controlled by a digital-to-analog converter converted to an analog size, which are fed to an input of a comparator becomes.
  • the output of the comparator controls the Servomotor.
  • the actual position of the actuator is tapped via a potentiometer and one other input of the comparator supplied. For each of the measuring heads is such an arrangement intended.
  • US-A-4 193 345 is an adjustment device for the color layer thickness profile known a printing press in which the individual Servomotors with potentiometers Actual value encoders are connected.
  • the potentiometer wiper is with an input connected to a comparator, and the Grinder is also a scanning and Holding circuit with the other input of the same Comparator connected.
  • the output signal of the comparator controls the servomotor.
  • the End connections of the potentiometer are on one adjustable voltage source to go on this Wise environmental influences, for example influences the temperature to the viscosity of the Printing ink, by changing the supply voltage of the potentiometer to be able to.
  • the arrangement described is intended for each individual servomotor.
  • the invention has for its object a Machine of the type described above with relatively simple means so that the Servomotors the given for them Reach target positions automatically.
  • the motor can therefore exceed the tolerance range not overflowing, and therefore there is the advantage that a possibly repeated reversal the direction of rotation of the motor until it reaches its Has reached the target position is not necessary.
  • Another advantage is that the comparison device can be constructed very simply because it not the size of each scan existing deviation of the actual position of the Motor must determine from its target position, but only whether the engine is inside or outside the tolerance range described above is located, and it is for this reason too no need to collect and collect data transfer that the size of this deviation represent, but only the above Data, namely the control signals for forward running, Reverse run and standstill.
  • the invention can also for setting the moisture layer thickness, e.g. B. by means of actuating cylinders, are used as well to adjust the color lifter.
  • Machine can also be a Manual control can be provided, as initially mentioned was described. During the setting process can servomotors that are different Printing units are assigned at the same time to run.
  • each servomotor an electronic Memory for storing the control signal assigned. That the control signal three different Can take values is enough a single flip-flop for this and therefore are for everyone in the later embodiment Memory provided two flip-flops.
  • the comparison device can with each one Actuator associated switching device each be directly connected in one embodiment the invention is however seen before that the comparator with each Control signal generates an address signal that the sampled actuator is assigned that the address signal of an address decoding circuit is supplied, which the control signal addressed Memory of the corresponding servomotor is assigned to save.
  • This Embodiment particularly allows for large number of servomotors, as in the printing machines described above available are relatively easy Circuit technology.
  • the invention provided that the address decoding circuit depending on one of her supplied, two possible operating modes (half-bridge switching, Full bridge circuit) representing Mode signal is switchable, such that in one operating mode (half-bridge circuit) one address at a time Memory is allocated, and at the other Operating mode (full bridge circuit) of an address two memories are assigned, which are then such Store signals that for forward and Reverse the relevant servomotor to his Anchor clamps with different ones Potentials is supplied.
  • this mode signal is unique to the manufacturer fixed and can therefore by a fixed applied potential are formed.
  • Number of outputs of the switching device specifies a certain type of decoding, for example for only two outputs (here can choose between two half-bridge circuits or realized a full bridge circuit ) or for four outputs (here are optional four half-bridge circuits or two Full bridge circuits possible). It is possible, in a printing machine servomotors partly in Full bridge circuit, partly in half bridge circuit to operate.
  • the comparison device an analog Comparator for comparing the target values and Actual values.
  • the comparison device for this Purpose a digital comparator; this can essentially formed by a subtractor be.
  • a brake logic circuit is provided, the Presence of the control signal for standstill Control signal for a connected power level generated with switches in full bridge circuit, the two with the same pole of the motor supply voltage source connected Control switches.
  • This can lead to a long run-on of the servomotor, which also depends on variables that are difficult to determine and therefore only be calculated inaccurately can be prevented where necessary.
  • This braking device can be dependent switchable from the above-mentioned mode signal be so that as in the later Embodiment only the braking device is effective with a full bridge circuit.
  • the servomotors for one described above Printing press need a current that per Actuator can be approximately up to 0.5 A. Did you want the above mentioned z. B. 192 servomotors Allow all to start at the same time for this in the case of the parallel connection in question such a large total current is required be that the required Power supply unit uneconomically large and would be expensive, especially considering the running time of the servomotors of just a few Hours a year.
  • the one described above known printing press run in general only a few of the servomotors at the same time.
  • Embodiment of the invention one behind the Control device arranged in memory is provided, which drive the electrical energy the servomotors only one at a time of several predetermined groups of servomotors for a predetermined period of time feeds.
  • the especially in connection with the just described control device can be realized can, and this in particular with the just described choice of different sizes Speeds of the actuators can be realized can, but need not be, it is provided that the comparison device for determining the Exceeding several different sizes Minimum deviations are formed by the actual values and that a switching device is provided is at the beginning of a setting process predetermined servomotors with a first predetermined Speed runs, this Actuators when falling below a first Minimum deviation are stopped and that the switching device then this Actuators with one compared to the first Speed runs lower speed and the Comparison device on a compared to the first minimum deviation smaller Minimum deviation switches.
  • the switching device contains at least one integrated circuit, which has: Depending on the control signals controllable power levels for connection of at least two servomotors, at least an address input for addressing the Power levels, at least one data input for the control signals and at least one Storage device for each power level Save the control signals.
  • controllable power levels for connection of at least two servomotors at least an address input for addressing the Power levels, at least one data input for the control signals and at least one Storage device for each power level Save the control signals.
  • the integrated circuit is advantageous in bipolar technology, e.g. B. I 2 L, or MOS technology. These techniques allow logic circuits and power stages to be implemented on the same die.
  • Embodiments of the invention provide one Possibility to effectively brake the Servomotors and an adjustment of the control level of the power levels to those in the logical Circuit occurring signal level.
  • Fig. 1 shows partially in a side view canceled an offset printing machine 1 with eight printing units, with five of the printing units are not visible.
  • Machine parts are some parts of a printing unit 8 shown.
  • the printing unit has one Plate cylinder 2 on which carries the printing plate and cooperates with the blanket cylinder 3, which the printing ink on the to be printed Paper transfers that between the blanket cylinder 3 and an impression cylinder 4 passes through. From the associated inking unit is only the ink metering box 5 with duct 6 is visible.
  • At the bottom of the paint dosing box 5 there is a split color knife 7 that a series of actuating cylinders 15 (Fig. 2), each of which is connected to a servomotor 9 is.
  • the printing unit 8 is also a Dampening unit 11 assigned to a water tank 12 has. Numerous other facilities especially rollers for transporting the Printing ink and water as well as transport rollers are not shown for the sake of simplicity.
  • Fig. 2 shows the adjustment mechanism simplified for one of the actuating cylinders 15 of the divided Color knife.
  • the trained as a DC motor Actuator 9 drives a shaft 16 with which is coupled to a potentiometer 17.
  • the wave 16 carries a threaded end Section 18, on which an adjusting piece 19th is screwed out, which is via a handlebar 20th with a rigidly connected to the actuating cylinder 15 Lever 21 is connected.
  • the lower Bottom of the ink metering box 5 is through a Plastic film 22 formed, and depending on the position of the eccentric twist 14 Actuating cylinder 15 becomes this plastic film 22 more or less close to the outer surface of the ductor 6 and thereby one more or less thick gap 23 formed, through which the color to the bottom of the Can reach roller.
  • the color then of other rollers of the inking unit in not removed in more detail shown.
  • the adjustment of the actuating cylinder 15 thus takes place through a displacement of the adjusting piece 19 as a result a rotary movement of the servomotor 9.
  • Two of the electrical connections of the potentiometer 17 are led to a voltage source, the Grinder of the potentiometer 17 is over a third line led out.
  • the potentiometer 17 thus allows the respective position of the Actuating cylinder 15 to measure electrically.
  • Each of the printing units of the printing press 1 are Assigned 32 actuating cylinders 15, the machine 1 therefore has a total of 256 actuators and same number of servomotors 9.
  • 3 of the 256 potentiometers are 17th only two are shown. In the top one is mechanical actuation by the servomotor 9 indicated by a dashed connection.
  • Each of the potentiometers 17 has an actual value for the position of the servomotor 9 and thus the Actuating cylinder 15 provides a potentiometer 30 assigned, the one lying on the grinder Voltage the setpoint of the position of the servomotor 9 represents.
  • the wiper of the potentiometer In the simplest case, 30 is adjustable by hand.
  • potentiometer 30 can any other adjustable memory for Voltage values are used, in particular also a digital memory for digital values of the Voltage that a digital-to-analog converter is connected downstream, at the output of which the stored digital value corresponding DC voltage is produced.
  • An eight-digit binary counter 35 is provided, whose count input from a clock 36 Pulses are supplied at regular intervals will. The appears at the outputs 37 each counter reading as a binary number. There are 256 different meter readings possible. The Andes Outputs 37 appearing binary number forms one Address for each potentiometer 17. It is a first decoding circuit 38 is provided, the Inputs connected to the outputs 37 are. The first decoding circuit 38 has 256 Exits. Each of the associated Pairs of a potentiometer 17 and a switch 40 is assigned to a potentiometer 30, the one with exactly one output line first decoding circuit 38 is connected. Of the in Fig.
  • upper switch 40 is with that Output of the first decoding circuit 38 connected, who accepts a predetermined potential if the counter 35 the counter reading 255 3 shows the lowest switch 40 in FIG connected to the output that said Potential when counter 35 shows the counter reading 0. Only one of the Outputs of the first decoding circuit 38 has this called potential, and this causes a two-pole switching of the switch 40, so that the grinder of the associated potentiometer 17 is connected to a line 42 and the grinder of the assigned potentiometer 30 is connected to a line 43.
  • the lower entrance of the comparator 46 becomes a voltage value fed by an adjustable resistor 48, the one connected to ground Resistor 49 forms a voltage divider, opposite the top input of the comparator 45 supplied voltage value by one The amount is reduced by twice the deviation the rotational position of the servomotor 9 from Corresponds to the setpoint.
  • the line 42 is connected to the lower input of the comparator 45 and the upper input of the comparator 46 connected. Therefore appears at the output of the comparator 45 a positive signal when the voltage on the Line 42 is greater than a voltage that the Setpoint of this voltage plus the through the resistance 47 corresponds to the tolerance set, and at the output of the comparator 46 a positive signal appears when the Voltage on line 42 is lower than that Target voltage reduced by the permissible deviation from the setpoint. In all other cases are the output voltages of the comparators 45 and 46 0 V.
  • the six most significant outputs of the Counter 35 are a second decoding circuit 50 supplied with 64 outputs, each only one of these outputs has a low potential Dependence on the counter reading of the counter 35 assumes that as a chip selection signal to choose from one of 64 integrated circuits 52 is used.
  • the two least significant outputs of the Counter 35 are two address inputs of each of the Integrated circuits 52 supplied.
  • the exits of comparators 45 and 46 are also via lines 51 and 53 two each Data inputs from each integrated circuit 52 fed.
  • Each integrated circuit 52 has four outputs to connect four Actuators 9 in half-bridge circuit or of two servomotors 9 in full bridge circuit allow.
  • the logic diagram of the integrated circuit 52 is shown. It contains inverters, AND gates, NAND gates, NOR gates and flip-flops, which are represented by the known symbols, and also four power stages 56 to 59, which are each of the same design. All connections for the operation of the logic circuits are shown on the left edge of FIG. 4.
  • a reset input R is used to reset all flip-flops when the power supply for the illustrated electronic circuits is switched on, in order to ensure defined output states.
  • the inputs A0 and A1 are supplied with the address signals supplied by the two least significant outputs of the counter 35.
  • four servomotors can be connected to the output stages 56 to 59 in half-bridge circuit, the input is connected FZ / RE to a positive voltage of 5 volts in the example, so one can be connected to the output stage pairs 56 and 57 on the one side and 58 and 59 on the other hand each a servomotor in full bridge circuit.
  • the data inputs D + and D - The control signals appearing on lines 51 and 53, which can also assume the logical values 0 and 1, are supplied. Two equal entrances P and SP make it possible to lock the output stages 56 to 59 without influencing the memories, e.g. B. for pulse operation.
  • Connections are at the bottom on the right edge of FIG. 4 for a positive and negative supply voltage for those to be connected Servomotors shown, in the embodiment these are the voltages of + 15 V and - 15 V.
  • the power levels 56 to 59 each have two outputs, the upper one the positive supply voltage of + 15 V and the lower one is the negative supply voltage - 15 V to a connected servomotor can optionally switch through.
  • the integrated circuit 52 contains several functional units.
  • An operating mode-dependent pressure decoding 60 is provided which, depending on whether the integrated circuit 52 is switched to a half-bridge circuit or a full-bridge circuit, either assigns exactly one of the power stages 56 to 59 to a specific address supplied to the terminals A0 and A1 or one of the pairs 56, 57 or 58, 59 of the power levels.
  • a data interlock 61 ensures that only one of its two outputs can assume the value logic 1, or that both outputs have the value logic 0. The data interlock 61 provides security against interference in the event that the logic 1 signal occurs simultaneously on the lines 51 and 53 for some reason.
  • An operating mode-dependent data decoding 62 carries the data, namely the control signals, depending on whether the integrated circuit 52 is switched to a half-bridge circuit or a full-bridge circuit, in each case only to the memory assigned to a single power stage or to a pair of power stages 56, 57 or 58, 59 assigned memories.
  • the eight flip-flops 54, 55 provided are combined to form a memory unit 63 by a dashed frame. Two of the flip-flops are assigned to a power amplifier, this is also indicated by dashed lines.
  • Each of the flip-flops 54, 55 has a clock input T, a reset input R , a data input D and a non-inverting and inverting output Q or Q on.
  • the flip-flops 54, 55 are clock-controlled (latch) and store the information contained in them at the end of the clock pulse. During the application of the clock pulse, the memory content follows the input signal.
  • a functional unit pulse signal processing 64 evaluates this at the inputs P and SP supplied input signal to block the power stages 56 to 59 in accordance with these signals.
  • This pulse signal processing 64 is connected downstream of the memory unit 63 and effects a mutual locking of the output signals of the two flip-flops 54 and 55 assigned to an output stage for forward or reverse running of the respectively connected servomotor, the connections of the armature of the servomotor are at the same potential, in the example - 15 V.
  • the armature of the servomotor is short-circuited and is therefore braked very quickly. If the armature is already at a standstill, undesired twisting of the armature, for example as a result of vibrations, is prevented.
  • the logic elements connected downstream of each pair of flip-flops 54 and 55, each of which together form a memory assigned to exactly one power level, and which are part of the pulse signal processing 64 and the operating mode-dependent braking logic 65, are connected in the same way in all cases.
  • These are three NAND gates 91, 92, 93, a NOT gate 94 and an AND gate 95.
  • the output of the NOT gate 94 is in each case connected to the upper input of the assigned power stage 56 to 59, that is to say the input E1 +, E2 + etc. connected.
  • the output of the element 95 is connected to the other input of the power stage.
  • the input of link 94 is connected to the output of link 91.
  • link 95 is connected to the output of link 93, the other input to the output of link 92.
  • the inputs of link 93 are to the outputs of links 91 and 92 and to the input FZ / RE of the integrated circuit 52 connected.
  • the inputs of the gate 91 are connected on the one hand to the output of a NOR gate 96, the inputs of which are connected to the control inputs P and SP of the integrated circuit 52 are connected, the further inputs of the element 91 are connected to the non-inverting output of the flip-flop 54 and the inverting output of the flip-flop 55.
  • One input of the link 92 is again connected to the output of the link 96, the other two inputs are connected to the inverting output of the flip-flop 54 and the non-inverting output of the flip-flop 55.
  • the braking logic 65 which is defined by the links 93, 94 and 95 is formed, ensures that in one Memory content of the flip-flops 54 and 55 with the logical values 0; 0 with half-bridge connection at the inputs of the assigned Power levels 56 to 59 the signals 0; 1 and the two outputs M + and M- this power level are switched off, whereas with full bridge switching at same memory content 0; 0 at the inputs of the two assigned to each other Power levels, for example 56 and 57, everywhere the logic level is 0, so that in both Power levels of the output M- on the negative motor supply voltage, thus an electrical braking of the Motor is possible.
  • FIG. 5 shows in a simplified manner how four servomotors 9 can be connected in a half-bridge circuit to an integrated circuit 52.
  • the two outputs of each power stage 56, 57, 58, 59, which are designated M1 +, M1- for example at power stage 56, are connected to one another, and a servomotor 9 is switched on between the connection point and ground.
  • the two outputs belonging to each of the power stages 56 to 59 could also be connected to one another within the integrated circuit 52. However, they are brought out so that a servomotor that is only operated in one direction of rotation or another consumer can be connected to each of the outputs if required. However, it is then advisable to ensure that the two outputs can be controlled independently of one another.
  • 5 is the logic input FZ / RE connected to ground, is therefore a logical 0.
  • the logic input is located FZ / RE on + 5 V, this voltage value represents the logic level 1.
  • the two outputs belonging to one of the output stages 56 to 59 are in turn connected to one another and a servomotor 9 is connected between the common outputs of the power stages 56 and 57, another servomotor 9 between the interconnected outputs of power level 58 and power level 59.
  • Fig. 7 shows the circuit diagram of an embodiment of power levels that a full bridge circuit form. These performance levels can the power levels of the integrated Form circuit 52, with in individual cases the integrated circuit technology changes may be required.
  • the two power levels 56 and 57 of the integrated circuit Fig. 4 are shown in Fig. 7, and therefore are 7 also the same designations for the Signal inputs E1 +, E2 +, E2- and the outputs M1 +, M1-, M2 +, M2- used.
  • Other connections in Fig. 7 are the connections for the positive and negative supply voltage for the motor and the positive supply voltage for the logic (+ 5 V) and the ground connection for logic (GND).
  • a pnp power transistor 70 is with its emitter on the positive motor supply voltage connected with his Collector at output M1 +.
  • An NPN power transistor 71 is at the exit with its collector M1- connected and with its emitter on negative pole of the motor supply voltage. Both collector-emitter lines are through each bridges a diode 72 that is opposite for the polarity of the respective base-emitter diode connected. These diodes 72 serve to protect transistors 70 and 71. At there is a connection to each transistor 70, 71 between the base connection and emitter connection via a resistor 75 or 76, the are the same size.
  • the collector of an npn transistor 78 is connected, its emitter via a resistor 79 with the connection for the ground potential of the Logic (GND) is connected.
  • This connection is via a voltage source 80 with the base of the Transistor 78 connected, which also via a resistor 81 connected to the terminal E1 + is.
  • the voltage source 80 is in Example of a series connection of four Diodes formed.
  • the base of transistor 71 is with the Collector of a pnp transistor 84 connected, whose emitter via a resistor 85 with the Connection for the positive supply voltage for the logic connected to the base of the Transistor 84 through a voltage source 86 is also connected by a series connection is formed by four diodes.
  • the Diodes of voltage sources 80 and 86 are poled in the same direction as that Base-emitter diode of the assigned Transistor. These diodes 80 and 86 hold in Connection with resistors 81 and 82, respectively Base voltage of transistors 78 and 84 too with values of E1 +, E1-, if this z. B. Values up to + 10 V.
  • the output signals of the operating mode-dependent brake logic 65 can the levels + 5 V and 0 V related to Accept logic mass. Be the two logic inputs E1 + and E1- the same input signals logically 0, i.e.
  • the servomotor 9 stopped as quickly as possible will turn off the actuator 9 not all transistors 70 and 71 blocked at both power levels 56 and 57, but it is connected to the input terminals E1, E2 of the two power levels 56 each Voltage 0 V applied, so that on the two Armature connections of the servomotor 9, which with the Outputs of power levels 56 and 57 connected are the negative supply voltage lies, these two connections of the anchor are short-circuited.
  • the armature winding creates hence a current that is generated when the servomotor 9 runs in the forward direction, which in FIG direction designated by reference numeral 89 Has. This current can cross the collector-emitter path flow through the transistor 71, since this is controlled at its base.
  • the resistor 85 in both output stages 56 and 57 so small that the Transistor 84 to the base of transistor 71 provides a base current that is at least about 30 times as large as for normal switching operations of the transistor required.
  • this inverse operated Transistor just a voltage drop of about 50 to 100 mV.
  • the servomotor 9 is hence to a much lower one Terminal voltage braked electrically and therefore comes to a standstill much faster as if the armature current during braking within performance level 57 only through the diode 72 could flow.
  • the cycle time that is to say the time period which is available for the detection of the actual values by the comparison device and the forwarding of the control signals up to the power levels, is approximately 50 ⁇ s.
  • the servomotors 9 are via the pulse input P each operated in pulsed fashion, the current flow time in the motor in the exemplary embodiment being 30 ms and the pause between two pulses being 270 ms. Different groups of servomotors are supplied with the current pulses at different times from each other.
  • the whole Adjustment range is divided into 256 intervals, that should be accessible individually. Each this interval or increment therefore has one Length of about 30 ms.
  • the electronic device described above Execute 600 queries of the actual values, together with the corresponding determination of the control signals. Because the one described above as an example Printing machine with eight printing units next to the Servomotors for ink zone adjustment yet about 24 additional actuators for the registers, a total of 280 servomotors are required thus with each servomotor within each of its individually approachable 256 increments two Interrogate. This results in great security against accidents that could occur as a result that one of the queries from any Reasons is disturbed.
  • Fig. 8 shows an overall circuit that instead the circuit arrangement shown in Fig. 3 can be provided and a digital comparison device having.
  • the actual values will be also detected here by the potentiometer 17, from which only two are shown and one for the actual value 1 and one for the actual value 256.
  • 64 are also integrated here Circuits 52 provided that additionally with the designations IS 1 (integrated Circuit 1) to IS 64 are designated. From these integrated circuits are shown in Fig. 8 only four are shown.
  • the analog signals generated by the potentiometers 17 an analog multiplexer for the actual values 120 fed.
  • a binary counter 135, which is advanced by a clock generator 136 has 9 counters and just as many outputs 141 to 149.
  • the eight most significant Outputs 142 to 149 signals appearing are used as address signals, these address inputs of the analog multiplexer 120 fed.
  • the one through the current value selected in each case is an input from the analog multiplexer 120 an analog-to-digital converter 150, which this analog signal into a binary 8-bit information converts that in parallel to a group of inputs 152 of a binary comparator 151 be fed.
  • the analog-digital converter 150 receives its start command to convert also from the lowest value output 141 of the Binary counter 135. Since the 141 appearing pulse repetition frequency twice is high, as the switching frequency of the at the Outputs 142 to 149 appearing addresses, ensures that between generation of two consecutive addresses of the Analog-digital converter 150 receives a start signal.
  • a second group 153 of inputs of the Binary comparison res 151 become digital target values fed from a digital setpoint memory, which also contains the address signals from the binary counter 135 are supplied and each one The setpoint is switched through to the binary comparator, which is currently from the analog multiplexer 120 connected actual value is assigned.
  • the the inputs 156 of the setpoint memory 155 supplied digital target values can be with the help of an analog-digital converter made of analog Signals, for example from potentiometers delivered, generated.
  • These target values can also by a keyboard or by a computer or from a data carrier where they are stored in binary form, in the Target value memory 155 can be entered.
  • the binary comparator 151 is a subtracting circuit. It always subtracts the signals fed to the inputs 152 from the signals fed to the inputs 153 when an output Data Ready of the analog-digital converter 150 outputs a signal to the binary comparator 151. Depending on the result of the subtraction, the binary comparator 151 then outputs an output 160 (if the signal at the inputs 152 was larger than at the inputs 153) or 161 (in the opposite case), assuming that the two values are the same must distinguish the minimum deviation described at the outset, or the binary comparator 151 does not output an output signal. Outputs 160 and 161 are with the data inputs D + and D - The integrated circuit 52 connected.
  • the two least significant bits of the address present at the analog multiplexer are applied to the address inputs A0 and A1 of the integrated circuits 52 and thus cause a preselection of the output stages of the individual integrated circuits.
  • the chip selection itself is carried out with the aid of a decoder 165 with 5 inputs and 32 outputs and with the aid of the most significant address bit.
  • the 64 integrated circuits 52 are divided into two groups IS1 to IS32 and IS33 to IS64.
  • An integrated circuit of each group receives the CS 2 signal from decoder 165.
  • One of the groups 1 to 32 or 33 to 64 is then selected by the most significant address bit, which in the first group is sent directly to the CS1 -Inputs and in the second group inverted by a NOT gate 170 to the CS 1 -Inputs is created.
  • exactly one of the integrated circuits 52 is selected.
  • the integrated circuits 52 in FIG. 8 are the same as described with reference to FIG. 4.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Epoxy Resins (AREA)
  • Rotary Presses (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Control Of Direct Current Motors (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)

Claims (19)

  1. Machine d'impression, de préférence machine d'impression Offset (1), pour laquelle il est prévu une pluralité de moteurs de réglage (9) commandés individuellement, destinés de préférence au réglage du profil de l'épaisseur de la couche de couleur, chaque moteur de réglage (9) étant relié à un capteur (17) qui génère des signaux électriques caractéristiques (valeurs effectives) pour la position effective respective du moteur de réglage (9), un dispositif électronique de comparaison (35, 44) étant prévu auquel sont fournies les valeurs effectives et en outre les valeurs de consigne pour la position d'un moteur de réglage (9) et qui établit la comparaison entre la valeur effective et la valeur de consigne afin d'occasionner l'avance, le recul ou l'immobilisation du moteur de réglage (9) en fonction du résultat de la comparaison, le dispositif de comparaison (35, 44) recevant les valeurs de consigne et les valeurs effectives de chacun des moteurs de réglage (9) et le dispositif de comparaison interrogeant de manière cyclique et répétitive les valeurs effectives les unes après les autres dans le temps, caractérisée en ce que le dispositif de comparaison (35, 44) interroge de manière répétitive les valeurs effectives au cours d'une opération d'ajustement d'un moteur de réglage (9), en ce que le dispositif de comparaison (35, 44) génère des signaux de réglage pour l'avance ou le recul de ce moteur de réglage (9) si une tolérance minimale prédéterminée négative ou positive est dépassée ou alors un signal de réglage pour l'immobilisation de ce moteur de réglage (9) et en ce que les signaux de réglage sont envoyés à un dispositif de commande (52) qui est conçu de manière que le moteur de réglage respectif (9) soit immobilisé ou entraíné à une vitesse de rotation prédéterminée dans le sens de rotation défini par le dernier signal respectif de réglage qui lui a été attribué jusqu'à l'apparition du signal de réglage suivant qui lui est attribué et en ce que la longueur du cycle de balayage est dimensionnée en tenant compte du nombre de tours du moteur respectif de réglage (9) de sorte que le moteur vient également s'immobiliser dans la zone où il se trouve lors d'un balayage dans la zone de la tolérance minimale prédéterminée.
  2. Machine suivant la revendication 1, caractérisée en ce que dans le dispositif de commutation (52), à chaque moteur de positionnement (9) est associée une mémoire électronique (54, 55) pour la mémorisation du signal de réglage.
  3. Machine suivant la revendication 1 ou 2, caractérisée en ce que le dispositif de comparaison (35, 44, 135, 151) engendre avec chaque signal de réglage, un signal d'adresse qui est associé au moteur de positionnement (9) exploré à l'instant et en ce que le signal d'adresse est appliqué à un circuit décodeur d'adresse (50, 60, 165), qui envoie le signal de réglage à la mémoire (54, 55) associée au moteur de positionnement (9) correspondant.
  4. Machine suivant la revendication 3, caractérisée en ce que le circuit décodeur d'adresse (60) peut être commuté en fonction d'un signal de mode d'exploitation qui lui est appliqué, représentant deux modes d'exploitation (montage en demi-pont, montage en pont complet), de telle sorte que pour un mode d'exploitation (montage en demi-pont), à une adresse n'est associée qu'une mémoire (54, 55), et pour l'autre mode d'exploitation (montage en pont complet), à une adresse sont associés deux mémoires (54, 55).
  5. Machine suivant l'une des revendications 1 à 4, caractérisée en ce que le dispositif de comparaison (35, 44) présente un comparateur analogique (45, 46) pour la comparaison des valeurs nominales et des valeurs instantanées.
  6. Machine suivant l'une quelconque des revendications 1 à 4, caractérisée en ce que le dispositif de comparaison (135, 151) présente un comparateur numérique (151) pour la comparaison des valeurs nominales et des valeurs instantanées.
  7. Machine suivant l'une des revendications précédentes, caractérisée en ce qu'un circuit logique de frein (65) est prévu, qui produit lors de la présence du signal de réglage pour l'arrêt, un signal de commande pour un étage de puissance (56, 57) raccordé avec des commutateurs (70, 71) en un montage en pont complet, qui rend conducteur deux commutateurs reliés au même pôle de la source de tension d'alimentation de moteur.
  8. Machine suivant les revendications 4 et 7, caractérisée en ce que le circuit logique de frein (65) peut être mis en service par le signal de mode d'exploitation pour le montage en pont complet.
  9. Machine suivant l'une des revendications 2 à 8, caractérisée en ce qu'un dispositif de commande disposé après la mémoire (54, 55) est prévu, qui applique l'énergie électrique pour l'entraínement des moteurs de positionnement successivement à une partie seulement du nombre total des moteurs de positionnement (9) pendant une période de temps prédéterminée.
  10. Machine suivant l'une des revendications précédentes, caractérisée en ce que le dispositif de comparaison est réalisé pour la détermination du dépassement de plusieurs écarts minimum de valeur différente par les valeurs instantanées, et en ce qu'un dispositif de commutation est prévu, qui laisse tourner au début d'une opération de réglage, des moteurs de positionnement (9) prédéterminés avec une première vitesse de rotation prédéterminée, ces moteurs de positionnement (9) lors de la chute en dessous d'un premier écart minimum étant arrêtés, et en ce que le dispositif de commutation laisse ensuite tourner ces moteurs de positionnement (9) avec une vitesse de rotation inférieure par rapport à la première vitesse de rotation et le dispositif de comparaison commute à un écart minimum inférieur par rapport au premier écart minimum.
  11. Machine suivant l'une des revendications 1 à 9, caractérisée en ce que le dispositif de commutation comporte au moins un circuit intégré (52) qui présente sur la même puce au moins un étage de puissance (56, 57) pour le raccordement d'un moteur (9) et une logique de commande (60 à 65) pour la commande de l'étage de puissance (56, 57).
  12. Machine suivant la revendication 11, caractérisée en ce que le circuit intégré (52) présente : des étages de puissance (56 à 59) pouvant être commandés en fonction des signaux de réglage, pour le raccordement d'au moins deux moteurs de positionnement (9), au moins une entrée d'adresse pour l'adressage des étages de puissance (56, 57), au moins une entrée de données pour les signaux de réglage, et au moins un dispositif de mémoire (54, 55) pour chaque étage de puissance (56, 57) pour la mémorisation des signaux de réglage.
  13. Machine suivant la revendication 12, caractérisée en ce que le circuit intégré (52) présente des étages de puissance (56, 57) pour le raccordement de quatre moteurs de positionnement (9) au total.
  14. Machine suivant l'une des revendications précédentes, caractérisée en ce qu'elle présente un étage de puissance (56, 57) pour un moteur de positionnement (9), l'étage de puissance (56, 57) présentant quatre transistors (70, 71) en un montage en pont complet, dont les intervalles collecteur-émetteur sont reliés, d'une part, aux pôles d'une source de tension d'alimentation et, d'autre part, aux connexions pour l'induit du moteur de positionnement (9) et en ce qu'aux connexions de base de deux transistors (70 ou 71) reliés au même pôle de la source de tension d'alimentation est appliqué au moins pendant le freinage du moteur (9), un courant de base permettant un fonctionnement inverse des transistors.
  15. Machine suivant la revendication 14, caractérisée en ce qu'aux transistors prévus pour le fonctionnement inverse est appliquée pour la conduction en fonctionnement normal pour la marche avant et la marche arrière du moteur de positionnement (9), un courant de base dont la valeur est égale au courant de base pour le fonctionnement inverse.
  16. Machine suivant l'une des revendications précédentes, caractérisée en ce qu'elle présente un étage de puissance (56, 57) pour un moteur de positionnement (9) qui présente deux commutateurs commandés (70, 71) qui sélectivement laissent passer une tension d'alimentation positive ou négative par rapport à un potentiel de référence vers une sortie de commutation ou sont tous deux bloqués.
  17. Machine suivant la revendication 16, caractérisée en ce que pour commander les commutateurs (70, 71), deux transistors (78, 84) sont prévus, en ce que l'émetteur d'un transistor (78) est ramené à un premier potentiel fixe et la base de ce transistor peut recevoir une tension positive par rapport à celui-ci en tant que signal de commande, et en ce que l'émetteur de l'autre transistor (84) est ramené à un second potentiel fixe positif par rapport au premier potentiel et à la base de l'autre transistor (84) peut être appliquée une tension négative par rapport au second potentiel en tant que signal de commande.
  18. Machine suivant la revendication 17, caractérisée en ce qu'au pôle positif d'une source de tension d'alimentation pour le moteur de positionnement (9) est raccordé l'émetteur d'un transistor pnp (70), dont la base est reliée au collecteur d'un transistor npn (78), dont la base est couplée à une première entrée de commande et dont l'émetteur est couplé à une connexion d'un premier potentiel fixe, en ce que l'émetteur d'un transistor npn (71) est relié au pôle négatif de la source de tension d'alimentation pour le moteur de positionnement (9), en ce que la base est reliée au collecteur d'un transistor pnp (84), dont la base est couplée à une seconde entrée de commande et dont l'émetteur est couplé à une connexion d'un second potentiel fixe, et en ce que les collecteurs du transistor pnp (70) et du transistor npn (71) forment les sorties de l'étage de puissance (56, 57).
  19. Machine suivant la revendication 17 ou 18, caractérisée en ce qu'en tant que signaux de commande, on prévoit des tensions avec le niveau du premier et du second potentiel fixe.
EP82101616A 1981-03-27 1982-03-03 Machine d'impression avec moteurs de positionnement Expired - Lifetime EP0061596B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101616T ATE13995T1 (de) 1981-03-27 1982-03-03 Druckmaschine mit stellmotoren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3112189 1981-03-27
DE3112189A DE3112189A1 (de) 1981-03-27 1981-03-27 Druckmaschine mit stellmotoren

Publications (3)

Publication Number Publication Date
EP0061596A1 EP0061596A1 (fr) 1982-10-06
EP0061596B1 EP0061596B1 (fr) 1985-06-26
EP0061596B2 true EP0061596B2 (fr) 1998-08-26

Family

ID=6128503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101616A Expired - Lifetime EP0061596B2 (fr) 1981-03-27 1982-03-03 Machine d'impression avec moteurs de positionnement

Country Status (12)

Country Link
US (1) US4573410A (fr)
EP (1) EP0061596B2 (fr)
JP (1) JPH0624850B2 (fr)
AT (1) ATE13995T1 (fr)
AU (1) AU528600B2 (fr)
CA (1) CA1194966A (fr)
DE (2) DE3112189A1 (fr)
DK (1) DK150656C (fr)
ES (1) ES510388A0 (fr)
MX (1) MX152382A (fr)
NO (1) NO151032C (fr)
ZA (1) ZA821598B (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148947A1 (de) * 1981-12-10 1983-06-23 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung zur steuerung einer vielzahl von stellmotoren an druckmaschinen
AU579864B2 (en) * 1984-07-03 1988-12-15 Heidelberger Druckmaschinen Aktiengesellschaft Procedure for determining the operating status of an actuating drive of a printing machine and device for implementing the procedure
DE3424349C2 (de) * 1984-07-03 1995-05-04 Heidelberger Druckmasch Ag Vorrichtung zur Erfassung der Stellung eines Stellelements einer Druckmaschine
DE3914831C3 (de) * 1989-05-05 1999-05-20 Roland Man Druckmasch Vorrichtung zum zonenweisen Einstellen eines Dosierspaltes einer Farbdosieranlage einer Druckmaschine
FI103395B (fi) * 1991-03-21 1999-06-30 Wifag Maschf Menetelmä rasteripistekoon säätämiseksi offsetrotaatiopainokonetta var ten
DE4137979B4 (de) * 1991-11-19 2004-05-06 Heidelberger Druckmaschinen Ag Antrieb für eine Druckmaschine mit mindestens zwei mechanisch voneinander entkoppelten Druckwerken
DE4233866A1 (de) * 1992-10-08 1994-04-14 Heidelberger Druckmasch Ag Einrichtung zum Positionieren von Stellantrieben an einer Druckmaschine
DE4328170A1 (de) * 1993-08-21 1995-02-23 Heidelberger Druckmasch Ag Einrichtung zum Positionieren eines Stellantriebes an einer Druckmaschine
JPH08230168A (ja) * 1995-02-27 1996-09-10 Mitsubishi Heavy Ind Ltd 印刷機の見当調整装置
DE10056246B4 (de) * 1999-12-07 2010-03-11 Heidelberger Druckmaschinen Ag Verfahren zum Steuern der Farbmenge in einer Druckmaschine
US7271554B2 (en) * 2003-07-30 2007-09-18 Canon Kabushiki Kaisha Motor-driving circuit and recording apparatus including the same
US7355358B2 (en) * 2003-10-23 2008-04-08 Hewlett-Packard Development Company, L.P. Configurable H-bridge circuit
JP4578936B2 (ja) * 2004-11-02 2010-11-10 リョービ株式会社 インキ供給制御装置

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US3774536A (en) * 1971-08-09 1973-11-27 Rockwell International Corp Printing press control system
DE2233188A1 (de) * 1972-07-06 1974-01-24 Kiepe Bahn Elektrik Gmbh Schaltungsanordnung fuer einen gleichstrom-nebenschlussmotor mit impulssteuerung und umkehrbarer drehrichtung
US3835777A (en) * 1973-01-16 1974-09-17 Harris Intertype Corp Ink density control system
GB1474166A (en) * 1973-07-13 1977-05-18 Harris Corp Controlling actuators for adjusting elements
US3930447A (en) * 1974-07-22 1976-01-06 Harris Corporation Dual purpose display for printing presses
CA1010949A (en) * 1975-04-17 1977-05-24 Robert L. Parr Control circuit for direct current motor
US4193345A (en) * 1977-04-01 1980-03-18 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Device for adjustment of the ink flow on printing press inking units
DE2728738B2 (de) * 1977-06-25 1979-05-10 Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach Eulrichtung zur Kontrolle und Regelung der Farbgebung an Druckmaschinen
DD132576A1 (de) * 1977-08-15 1978-10-11 Hartmut Heiber Einrichtung zur speicherung von einstelldaten
GB2006680B (en) * 1977-10-27 1982-04-21 Ricoh Kk Offset printing machine control system
GB2024457B (en) * 1978-06-07 1983-01-06 Harris Corp Printing press ready and control system
DE2830085C3 (de) * 1978-07-08 1986-07-10 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Verfahren und Vorrichtung zum Anzeigen von Stellgrößen
DD150027A1 (de) * 1980-04-10 1981-08-12 Max Janicki Regeleinrichtung fuer stellglieder an druck-und buchbindereimaschinen
DD150026A1 (de) * 1980-04-10 1981-08-12 Max Janicki Steuereinrichtung fuer soll-und/oder istwerte zur farbwerksvoreinstellung
DD159255A3 (de) * 1980-04-10 1983-03-02 Helmut Schuck Steuereinrichtung fuer schrittmotore mit bipolaren wicklungen an druckmaschinen
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Also Published As

Publication number Publication date
CA1194966A (fr) 1985-10-08
MX152382A (es) 1985-07-09
EP0061596A1 (fr) 1982-10-06
NO151032B (no) 1984-10-22
DK150656C (da) 1987-11-30
NO821023L (no) 1982-09-28
JPS57170760A (en) 1982-10-21
DK150656B (da) 1987-05-18
AU8174082A (en) 1982-09-30
DK119882A (da) 1982-09-28
AU528600B2 (en) 1983-05-05
JPH0624850B2 (ja) 1994-04-06
ZA821598B (en) 1983-01-26
DE3112189C2 (fr) 1989-06-22
ES8302544A1 (es) 1983-02-01
ES510388A0 (es) 1983-02-01
ATE13995T1 (de) 1985-07-15
DE3112189A1 (de) 1982-10-14
US4573410A (en) 1986-03-04
NO151032C (no) 1985-01-30
DE3264365D1 (en) 1985-08-01
EP0061596B1 (fr) 1985-06-26

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