JP5413906B2 - Drive control method and drive control apparatus for printing press - Google Patents

Description

  The present invention relates to a drive control method and a drive control apparatus for a printing press such as a sheet-fed printing press.

  Conventionally, printing machines such as sheet-fed printing machines, particularly securities printing machines, have an offset printing unit and an intaglio printing unit to perform offset printing and intaglio printing at the same time, and these printing units are driven by a single motor. It was.

  Therefore, the load applied to the driving motor is large, and a motor having a large capacity must be used. As a result, it is necessary to use an expensive motor, and the rigidity of the drive system is also required. In order to further increase the size, a motor with a larger capacity must be used, and the speed can be increased. There was a problem that it was not possible.

  In addition, the printing pressure between the intaglio cylinder and the impression cylinder in the intaglio printing section is large, and the load in the state where both cylinder surfaces are in contact with each other and the printing pressure is applied is large. did not become.

  In addition, the wiping roll of the intaglio printing part thermally expands with the passage of time, and the contact pressure against the intaglio cylinder increases, so it has been necessary to use a motor with a larger capacity in anticipation of the increased load.

JP 2006-305903 A

  Therefore, as in Patent Document 1, the offset printing unit (processing unit group on the upstream side in the paper flow direction) and the intaglio printing unit (processing unit group on the downstream side in the paper flow direction) are each driven by a separate driving motor, In addition, it is conceivable to control the two driving motors synchronously in speed and phase.

  However, the printing pressure between the intaglio cylinder and the impression cylinder of the intaglio printing section is large, the surface of both cylinders is in contact and printing pressure is applied, and the notch part of both cylinders is opposed and no printing pressure is applied The load fluctuation between the intaglio printing section and the first transfer cylinder of the intaglio printing section causes uneven rotation due to backlash in the gear train, and the intaglio printing starts from the last transfer cylinder of the offset printing section. When the paper is delivered to the first transfer cylinder of the part, the paper cannot be delivered at the correct position, a printing failure occurs, and if the rotation unevenness further increases, a paper holding error or a paper edge breakage may occur. Since various problems such as taking a long time to return occur, implementation is not easy.

  Accordingly, an object of the present invention is to reduce the drive system size by reducing the capacity of the driving motor, thereby enabling cost reduction and high-speed printing, and enabling individual driving in each printing unit as required. It is in.

  For this purpose, the offset printing unit and the intaglio printing unit are connected by a gear train, and an auxiliary motor is provided in the intaglio printing unit with the largest load and the largest load fluctuation apart from the driving motor that drives the entire printing press. The above-mentioned object is achieved by driving the whole with a driving motor and an auxiliary motor, and obtaining the driving torque of the auxiliary motor from the driving torque of the driving motor.

  In addition, a clutch is provided between the last transfer cylinder of the offset printing section and the first transfer cylinder of the intaglio printing section, and a nail relief mechanism is provided on the last transfer cylinder of the offset printing section, and the offset printing section is driven by cutting the clutch. The intaglio printing part can be driven independently by an auxiliary motor with a motor so that printing preparation and cleanup can be performed simultaneously.

The drive control method of the printing machine for solving the above problems is as follows.
An offset printing section for performing offset printing;
An intaglio printing section for intaglio printing;
A gear train for drivingly connecting the offset printing unit and the intaglio printing unit;
A driving motor for driving the offset printing unit and the intaglio printing unit;
In a printing press equipped with
An auxiliary motor is provided in the intaglio printing unit,
Driving the auxiliary motor according to a torque value for driving the driving motor;
It is characterized by that.

Also,
The driving torque value of the auxiliary motor is obtained from the torque for driving the driving motor, the torque distribution rate of the auxiliary motor, and the rated current value of the auxiliary motor.
It is characterized by that.

Also,
A wiping roll motor for driving the wiping roll of the intaglio printing unit;
A current value display for displaying a driving torque value of the wiping roll motor;
Further provided,
Adjusting the torque of the auxiliary motor according to the current value of the current value indicator;
It is characterized by that.

Also,
A first transfer cylinder provided with a first holding unit for transferring a printed matter printed by the offset printing unit to the intaglio printing unit;
A second transfer cylinder having a second holding unit for receiving a printed matter printed by the offset printing unit from the offset printing unit;
A clutch for connecting / disconnecting a gear train between the first transfer cylinder and the second transfer cylinder;
A claw relief mechanism for preventing the second holding part or the first holding part from coming into contact with the first transferring cylinder or the second transferring cylinder;
With
Each of the driving motor and the auxiliary motor is driven independently;
It is characterized by that.

A drive control device for a printing press for solving the above problems is as follows.
An offset printing section for performing offset printing;
An intaglio printing section for intaglio printing;
A gear train for drivingly connecting the offset printing unit and the intaglio printing unit;
A driving motor for driving the offset printing unit and the intaglio printing unit;
In a printing press equipped with
An auxiliary motor is provided in the intaglio printing unit,
In accordance with a torque value for driving the driving motor, a control device for driving the auxiliary motor is provided.
It is characterized by that.

Also,
The control device obtains a driving torque value of the auxiliary motor from a torque for driving the driving motor, a torque distribution ratio of the auxiliary motor, and a rated current value of the auxiliary motor.
It is characterized by that.

Also,
A wiping roll motor for driving the wiping roll of the intaglio printing unit;
A current value display for displaying a driving torque value of the wiping roll motor;
Further provided,
It is characterized by that.

Also,
A first transfer cylinder provided with a first holding unit for transferring a printed matter printed by the offset printing unit to the intaglio printing unit;
A second transfer cylinder having a second holding unit for receiving a printed matter printed by the offset printing unit from the offset printing unit;
A clutch for connecting / disconnecting a gear train between the first transfer cylinder and the second transfer cylinder;
A claw relief mechanism for preventing the second holding part or the first holding part from coming into contact with the first transferring cylinder or the second transferring cylinder;
With
The control device individually controls the driving motor and the auxiliary motor;
It is characterized by that.

  According to the drive control method and apparatus for a printing press according to the present invention described above, the entire printing press is driven by a driving motor and an auxiliary motor, and the driving torque of the auxiliary motor is obtained from the driving torque of the driving motor. Therefore, the drive motor distribution ratio of the auxiliary motor during printing can be automatically set appropriately, and the capacity of the driving motor can be reduced. As a result, the drive system can be downsized, and cost reduction and high-speed printing can be achieved.

  In addition, since a clutch is provided between the last transfer cylinder of the offset printing unit and the first transfer cylinder of the intaglio printing unit and a nail relief mechanism is provided on the last transfer cylinder of the offset printing unit, each printing unit is individually and smoothly operated. Can be driven. As a result, printing preparation and cleanup work can be performed simultaneously in each printing unit, and downtime can be reduced.

It is a hardware block diagram of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is a hardware block diagram of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is a hardware block diagram of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is an operation | movement flowchart of the drive control apparatus of the offset printing part and the intaglio printing part in one Example of this invention. It is a side view which shows schematic structure of a sheet-fed printing press. It is a top view which shows the gear train of a sheet-fed printing machine. It is a top view between the transfer cylinders in the offset printing part and the intaglio printing part of the sheet-fed printing press.

  Hereinafter, a drive control method and a drive control apparatus for a printing press according to the present invention will be described in detail with reference to the accompanying drawings.

  1A to 1C are hardware block diagrams of a drive control device for an offset printing unit and an intaglio printing unit according to an embodiment of the present invention.

  2A to 2C, FIG. 3A, FIG. 3B, FIG. 4A to FIG. 4D, and FIG. 5A to FIG. 5C are operation flowcharts of the drive control device for the offset printing unit and the intaglio printing unit in one embodiment of the present invention.

  6 is a side view showing a schematic configuration of a sheet-fed printing press, FIG. 7 is a plan view showing a gear train of the sheet-fed printing press, and FIG. 8 is a cross section between the offset printing unit and the intaglio printing unit of the sheet-fed printing press. FIG.

  As shown in FIG. 6, in this embodiment, the sheet-fed printing machine (printing machine) 10 includes an offset printing unit 20 that is continuous with a paper feeding unit (not shown), an intaglio printing unit 30 that follows this, and a paper that is not shown. And a paper portion.

  The offset printing unit 20 further includes first to fourth color offset surface printing units 20a to 20d and offset back surface printing units 20e to 20h, a surface drying unit 20i and a back surface drying unit 20j, and a rotary screen printing unit 20k. The drying unit 20l.

  In the offset printing unit 20, the nine impression cylinders 21a to 21i, the three drying cylinders 22a to 22c, and the three transfer cylinders 23b to 23d have the same diameter and are arranged substantially horizontally in the paper flow direction. At the same time, the transfer cylinder 23a for transferring the paper from the paper supply unit to the offset printing unit 20 is in contact with the frontmost (first color) impression cylinder 21a, while the last transfer cylinder 23d is connected to the transfer cylinder 23d. A transfer cylinder 23e for delivering paper from the offset printing unit 20 to the intaglio printing unit 30 is brought into contact.

  A plate cylinder 25 is brought into contact with the impression cylinders 21a to 21h of the first to fourth color offset front surface printing units 20a to 20d and the offset rear surface printing units 20e to 20h via rubber cylinders 24, respectively. Further, the three drying apparatuses 26 are opposed to the peripheral surfaces of the drying cylinders 22a to 22c of the front surface drying unit 20i, the back surface drying unit 20j, and the drying unit 20l. The rotary screen cylinder 27 is in contact with the impression cylinder 21i of the rotary screen printing unit 20k.

  Accordingly, in the offset printing unit 20, the paper (printed material) delivered from the paper feeding unit via the transfer cylinder 23a is used for the first to fourth color offset front surface printing units 20a to 20d and the offset back surface printing unit 20e. After double-sided offset printing is performed in ˜20h, the surface is dried by the surface drying unit 20i and the back surface drying unit 20j. Next, after screen printing is performed by the rotary screen printing unit 20k, it is dried by the drying unit 20l and delivered from the transfer cylinder 23e to the intaglio printing unit 30 described later.

  On the other hand, the intaglio printing unit 30 has the same diameter as the impression cylinder 31 on the impression cylinder 31 that is double the diameters of the impression cylinders 21 a to 21 i, the drying cylinders 22 a to 22 c and the transfer cylinders 23 b to 23 d of the offset printing unit 20. The intaglio cylinder 32 is contacted. The intaglio cylinder 32 is in contact with the four ink form rollers 33a to 33d of the inking device 33 and the wiping roll 34a of the wiping device 34. Further, the impression cylinder 31 is in contact with the transfer cylinder 23e of the offset printing section 20 and is in contact with the transfer cylinder 23f that receives paper from the offset printing section 20 and delivers it to the intaglio printing section 30. A paper discharge cylinder 35 that delivers paper from the unit 30 to the paper discharge unit is brought into contact.

  Accordingly, the intaglio printing unit 30 performs intaglio printing on the paper on which the double-sided offset printing and screen printing have been performed by the offset printing unit 20 and discharges the paper to the paper discharge unit.

  The pressure drums 21a to 21i, 31, the drying drums 22a to 22c, the transfer drums 23a to 23f, and the paper discharge drum 35 are each provided with a holding portion such as a gripping nail device for holding paper in the cutout portion. The conveyed paper is delivered between the cylinders.

  For example, between the transfer cylinder 23e of the offset printing unit 20 and the transfer cylinder 23f of the intaglio printing unit 30, gripping claw devices 47 and 49 are mounted in the notch portions 46 and 48, respectively, as shown in FIG. In addition, a claw relief mechanism for a number of claws 47a and 49a in the gripper claw devices 47 and 49 is provided.

  As a claw relief mechanism of the transfer cylinder 23e, annular grooves 50 are formed at positions corresponding to the claw 49a of the transfer cylinder 23f on the peripheral surface of the transfer cylinder 23e, and the tip end portions of the claw 49a protruding greatly on the receiving side in these annular grooves 50 Is inserted, so that mutual interference (contact etc.) is avoided. On the other hand, the claw relief mechanism of the transfer drum 23f is formed with a diameter that is smaller than the diameter of the bearer 29 by a dimension L, and has a smaller protrusion than the receiving claw 49a, and interference with the tip of the delivery claw 47a. (Contact etc.) is avoided. In FIG. 8, 28 is a bearer of the transfer cylinder 23e, and 29 is a bearer of the transfer cylinder 23f.

  In this embodiment, as shown in FIG. 7, the offset printing unit 20 is driven by an offset printing unit driving motor (driving motor) 142 via a winding transmission such as a belt 4 </ b> A, while the intaglio printing unit 30. Is driven by an intaglio printing unit auxiliary motor (auxiliary motor) 148 via a worm gear mechanism 4B.

  That is, the gear 40a of the last transfer cylinder (first transfer cylinder) 23e of the offset printing unit 20 and the gear 40b of the first transfer cylinder (second transfer cylinder) 23f of the intaglio printing unit 30 do not mesh with each other. The gear 40a of the transfer cylinder 23e is the first of the offset printing unit 20 via the gear 41 of the impression cylinders 21b to 21i after the first impression cylinder 21a, the gear 42 of the drying cylinders 22a to 22c and the gear 43 of the transfer cylinders 23b to 23d. Is engaged with the gear 41 of the impression cylinder 21a to constitute a gear train of the offset printing unit 20, and can transmit the driving force of the driving motor 142 of the offset printing unit 30, while the gear of the first transfer cylinder 23f of the intaglio printing unit 30 40b meshes with the gear 45 of the intaglio printing cylinder 32 of the intaglio printing section 30 via the gear 44 of the impression cylinder 31 to constitute the gear train of the intaglio printing section 30, and drives the intaglio printing section auxiliary motor 148. And it is able to transmit. In FIG. 8, 5A and 5B are pinions.

  The gear train between the last transfer cylinder 23e of the offset printing unit 20 and the first transfer cylinder 23f of the intaglio printing unit 30 is assembled to the gears 52a and 52b that are always meshed with each other and the one gear 52b side. Connection or disconnection is performed via an electromagnetic printing unit connection clutch 156 that engages in the rotation direction only at a predetermined rotation phase. That is, when the gear train is connected, the driving force of the offset printing unit driving motor 142 is transmitted to the intaglio printing unit 30, while when the gear train is released, the offset printing unit 20 and the intaglio printing unit 30 are separated. The offset printing unit driving motor 142 and the intaglio printing unit auxiliary motor 148 can be driven independently.

  Further, the wiping roll 34a in the wiping device 34 is driven by a wiping roll driving motor (wiping roll motor) 152 via a pinion 5C that meshes with the gear 51 of the wiping roll 34a.

  Further, the rotary encoder 143 for the offset printing unit driving motor is integrally assembled with the offset printing unit driving motor 142 of the offset printing unit 20, and the intaglio printing unit auxiliary motor 148 of the intaglio printing unit 30 is used for the intaglio printing unit auxiliary motor. A rotary encoder 149 is assembled integrally. Further, a rotary encoder 153 for the wiping / roll driving motor is integrally assembled with the wiping / roll driving motor 152 of the wiping device 34.

  In this embodiment, the offset printing unit driving motor 142, the intaglio printing unit auxiliary motor 148, and the wiping / roll driving motor 152 are driven by an offset printing unit and an intaglio printing unit drive control device (control device) 200 described later. The drive is controlled.

  As shown in FIGS. 1A to 1C, in the drive control device 200, in addition to the CPU 100, the ROM 101, and the RAM 102, the input / output devices 103 to 106, 110 to 118, and the internal clock counter 119 are connected by a BUS (bus). Configured.

  The BUS includes a set rotational speed storage memory M100, an intaglio printing unit auxiliary motor torque distribution rate storage memory M101, a wiping / roll drive motor reference current value storage memory M102, and a slow rotational speed storage memory M103. A current command rotational speed storage memory M104, a previous command rotational speed storage memory M105, a speed update time interval storage memory M106, and a rotational speed correction value storage memory M107 during acceleration are connected.

  The BUS includes a corrected current command rotational speed storage memory M108, a current command rotational speed storage memory M109 for the wiping / roll driving motor, a current value storage memory M110 for the wiping / roll driving motor, and a wiping / rolling roll. Memory M111 for storing the current value of the drive motor, memory M112 for storing the current value of the offset printing unit driving motor, memory M113 for storing the rated current value of the offset printing unit driving motor, memory for storing the torque ratio of the offset printing unit driving motor M114 is connected.

  The BUS includes a memory M115 for storing the torque ratio of the intaglio printing unit auxiliary motor, a memory M116 for storing the rated current value of the intaglio printing unit auxiliary motor, and a memory M117 for storing the current value (drive torque value) of the intaglio printing unit auxiliary motor. Rotational speed correction value storage memory M118 during deceleration, offset printing section single drive rotational speed storage memory M119, intaglio printing section single drive rotational speed storage memory M120, wiping roll single drive rotational speed storage memory M121 is connected.

  Further, the input / output device 103 includes a printing press drive switch 120, a printing press drive stop switch 121, an offset printing unit single drive switch 122, an offset printing unit single drive stop switch 123, an intaglio printing unit single drive switch 124, and an intaglio printing unit. Single drive stop switch 125, wiping / roll single drive switch 126, wiping / roll single drive stop switch 127, input device 128 such as a keyboard and various switches and buttons, a display 129 such as a CRT and a lamp, and a floppy (registered trademark) An output device 130 such as a disk drive or a printer is connected.

  Connected to the input / output device 104 are a rotational speed setting device 131, a rotational speed setting device 132 for driving the offset printing unit alone, a rotational speed setting device 133 for driving the intaglio printing unit alone, and a rotational speed setting device 134 for driving only the wiping roll. Has been.

  The input / output device 105 is connected to a torque distribution rate setting unit 135 for the intaglio printing unit auxiliary motor and a reference current value setting unit 136 for the wiping / roll driving motor.

  A wiping / roll drive motor current value display (current value display) 137 and a wiping / roll drive motor current value difference display 138 are connected to the input / output device 106.

  The input / output device 110 is connected to an offset printing unit driving motor / driver 141 so that a current value (torque value) output from the offset printing unit driving motor / driver 141 is input. At this time, a current value (torque value) may be input to the input / output device 110 from an ammeter 145 provided separately from the offset printing unit driving motor driver 141 via the A / D converter 144.

  The input / output device 111 is connected to an offset printing unit driving motor / driver 141 and outputs a control mode command to the offset printing unit driving motor / driver 141.

  The input / output device 112 is connected to the offset printing unit driving motor 142 via the D / A converter 140 and the offset printing unit driving motor driver 141 described above, and the offset printing unit driving motor driver 141. The rotational speed signal is input from the rotary encoder 143 for the offset printing unit driving motor connected to the offset printing unit driving motor 142.

  The input / output device 113 is connected to an intaglio printing unit auxiliary motor driver 147, and outputs a control mode command to the intaglio printing unit auxiliary motor driver 147.

  The input / output device 114 is connected to the intaglio printing unit auxiliary motor 148 via the D / A converter 146 and the intaglio printing unit auxiliary motor driver 147 described above, and the intaglio printing unit auxiliary motor driver 147. Is supplied with a rotational speed signal from a rotary encoder 149 for an intaglio printing unit auxiliary motor connected to and driven by the intaglio printing unit auxiliary motor 148.

  The input / output device 115 is connected to a wiping / roll driving motor / driver 151 so that a current value (torque value) output from the wiping / roll driving motor / driver 151 is input. At this time, a current value (torque value) may be input to the input / output device 115 from an ammeter 155 provided separately from the wiping / roll drive motor driver 151 via the A / D converter 154.

  The input / output device 116 is connected to a wiping / roll driving motor / driver 151 so as to output a control mode command to the wiping / roll driving motor / driver 151.

  The input / output device 117 is connected to the wiping / roll driving motor 152 via the D / A converter 150 and the wiping / roll driving motor driver 151 described above, and the wiping / roll driving motor / driver 151. Is supplied with a rotation speed signal from a rotary encoder 153 for a wiping roll drive motor connected to the wiping roll drive motor 152.

  Further, the printing unit connection clutch 156 and the printing unit connection clutch connection detector 157 are connected to the input / output device 118.

  Below, operation | movement of the drive control apparatus 200 of the offset printing part and the intaglio printing part mentioned above is demonstrated.

  The drive control apparatus 200 operates according to the operation flow shown in FIGS. 2A to 2C, FIGS. 3A and 3B, FIGS. 4A to 4D, and FIGS. 5A to 5C.

  That is, in step P1, it is determined whether or not the set rotational speed is input to the rotational speed setter 131. If yes, the set rotational speed is read from the rotational speed setter 131 in step P2 and stored in the memory M100. The process proceeds to step P3. On the other hand, if it is no, it will transfer to step P3 immediately.

  Next, in step P3, it is determined whether or not a torque distribution rate is input to the torque distribution rate setting unit 135 of the intaglio printing unit auxiliary motor. If yes, a torque distribution rate setting unit of the intaglio printing unit auxiliary motor is determined in step P4. From 135, the torque distribution rate of the intaglio printing unit auxiliary motor 148 is read and stored in the memory M101, and then the process proceeds to Step P5. On the other hand, if it is no, it will transfer to step P5 immediately.

  Next, in step P5, it is determined whether or not a reference current value has been input to the wiping / roll driving motor reference current value setting device 136. If yes, in step P6, a wiping / roll driving motor reference current value setting device. From 136, the reference current value of the wiping / roll driving motor 152 is read and stored in the memory M102, and then the process proceeds to Step P7. On the other hand, if it is no, it will transfer to step P7 immediately.

  Next, it is determined in step P7 whether or not the printing press drive switch 120 has been turned on. If yes, a connection preparation signal is output to the printing unit connection clutch 156 in step P8, and then the process proceeds to step P9. On the other hand, if no, the process proceeds to Step P87 described later.

  Next, in step P9, the slow rotational speed is read from the memory M103, and in step P10, the current command rotational speed storage memory M104 and the previous command rotational speed storage memory M105 are overwritten with the slow rotational speed. At P11, the current command rotational speed (slow movement) is read from the memory M104.

  Next, after outputting the speed control command and the current command rotational speed (slow motion) to the offset printing unit driving motor driver 141 in step P12, the signal of the connection detector 157 for the printing unit connection clutch is output in step P13. When turned ON, the internal clock counter (for counting elapsed time) 119 starts counting in step P14.

  Next, in step P15, it is determined whether or not the printing press drive stop switch 121 is turned on. If yes, the process proceeds to step P52 described later. If not, the speed update time interval is determined from the memory M106 in step P16. After reading, the count value of the internal clock counter 119 is read in step P17.

  Next, in step P18, it is determined whether or not the count value of the internal clock counter = speed update time interval. If yes, the set rotational speed is read from the memory M100 in step P19, and the process proceeds to step P20. On the other hand, if it is no, it will transfer to step P37 mentioned later.

  Next, after the set rotational speed is overwritten in the current command rotational speed storage memory M104 in step P20, the current command rotational speed is read from the memory M104 in step P21, and the previous command rotational speed is stored in the memory M105 in step P22. Read from.

  Next, in step P23, it is determined whether or not the current command rotational speed = the previous command rotational speed. If yes, the current command rotational speed is read from the memory M104 in step P24, and then the current command rotational speed is determined in step P25. Based on the command rotation speed, the current command rotation speed of the wiping / roll driving motor 152 is calculated and stored in the memory M109. The current command rotation speed of the wiping / roll driving motor 152 is obtained by multiplying the current command rotation speed by a predetermined coefficient.

  Next, after reading the current command rotational speed from the memory M104 in step P26, the speed control command and the current command rotational speed are output to the offset printing unit driving motor driver 141 in step P27.

  Next, in step P28, the current command rotational speed of the wiping / roll driving motor 152 is read from the memory M109, and in step P29, the speed control command and the current command rotational speed are sent to the wiping / roll driving motor / driver 151. Output.

  Next, after reading the current command rotational speed from the memory M104 in step P30, the current command rotational speed is overwritten in the previous command rotational speed storage memory M105 in step P31, and then the process returns to step P14.

  On the other hand, if the answer is NO in step P23, the rotational speed correction value at the time of acceleration is read from the memory M107 at step P32, and then the rotational speed correction value at the time of acceleration is added to the previous command rotational speed at step P33. The corrected current command rotational speed is calculated and stored in the memory M108.

  Next, after reading the set rotational speed from the memory M100 in step P34, it is determined in step P35 whether the set rotational speed> the corrected current command rotational speed. If yes, the current command rotational speed is determined in step P36. After the corrected current command rotational speed is overwritten in the speed storage memory M104, the process proceeds to step P24. On the other hand, if not, the process proceeds to step P24.

  Through the operation flow described above, the speed switching control of the sheet-fed printing press 10, that is, the offset printing unit driving motor 142 (and the intaglio printing unit auxiliary motor 148) and the wiping / roll driving motor 152 is performed.

  Next, in step P37 transferred from step P18 described above, the current value of the wiping roll drive motor 152 is read from the wiping roll drive motor driver 151 and stored in the memory M110, and then in step P38 for the wiping roll drive motor. The current value display 137 displays the current value of the wiping / roll driving motor 152.

  Next, after reading the reference current value of the wiping / roll driving motor 152 from the memory M102 in step P39, the reference current value of the wiping / roll driving motor 152 is determined from the current value of the wiping / roll driving motor 152 in step P40. Is subtracted and the difference between the current values of the wiping / roll driving motor 152 is calculated and stored in the memory M111.

  Next, after the current value difference of the wiping / roll driving motor 152 is displayed on the current value difference display 138 for the wiping / roll driving motor in step P41, the torque distribution ratio setting of the intaglio printing unit auxiliary motor is set in step P42. It is determined whether or not a torque distribution rate is input to the device 135.

  Next, if yes in Step P42, the torque distribution rate of the intaglio printing unit auxiliary motor 148 is read from the torque distribution rate setting unit 135 of the intaglio printing unit auxiliary motor in Step P43, stored in the memory M101, and the process proceeds to Step P44. On the other hand, if no, the process directly proceeds to step P44.

  Next, after the current value of the offset printing unit driving motor 142 is read from the offset printing unit driving motor driver 141 in step P44 and stored in the memory M112, the rated current value of the offset printing unit driving motor 142 is set to M113 in step P45. Read from.

  Next, in step P46, the current value of the offset printing unit driving motor 142 is divided by the rated current value of the offset printing unit driving motor 142, and the torque rate of the offset printing unit driving motor 142 is calculated and stored in the memory M114. In step P47, the torque distribution ratio of the intaglio printing unit auxiliary motor 148 is read from the memory M101.

  Next, in step P48, the torque rate of the intaglio printing unit auxiliary motor 148 is multiplied by the torque rate of the offset printing unit driving motor 142, and the torque rate of the intaglio printing unit auxiliary motor 148 is calculated and stored in the memory M115. In step P49, the rated current value of the intaglio printing unit auxiliary motor 148 is read from the memory M116.

  Next, in step P50, the torque rate of the intaglio printing unit auxiliary motor 148 is multiplied by the rated current value of the intaglio printing unit auxiliary motor 148, and the current value (drive torque value) of the intaglio printing unit auxiliary motor 148 is calculated to obtain the memory M117. In step P51, the torque control command and the current value (drive torque value) of the intaglio printing unit auxiliary motor 148 are output to the intaglio printing unit auxiliary motor driver 147, and the process returns to step P15.

  According to the above operation flow, the intaglio printing unit is driven according to the current value (torque value) for driving the offset printing unit driving motor 142, the torque distribution ratio of the intaglio printing unit auxiliary motor 148, and the rated current value of the intaglio printing unit auxiliary motor 148. The current value (drive torque value) of the auxiliary motor 148 is controlled.

  Next, after the count of the internal clock counter (for counting elapsed time) 119 is started in step P52, which has shifted from step P15 described above, the speed update time interval is read from the memory M106 in step P53.

  Next, after reading the count value of the internal clock counter 119 in step P54, it is determined in step P55 whether the count value of the internal clock counter is equal to the speed update time interval. Is read from the memory M105, if not, the process proceeds to Step P72 described later.

  Next, after the rotational speed correction value during deceleration is read from the memory M118 in step P57, the rotational speed correction value during deceleration is subtracted from the previous command rotational speed in step P58, and the corrected current command rotational speed is obtained. Calculate and store in memory M108.

  Next, it is determined whether or not the current command rotational speed corrected in step P59 is 0. If yes, a stop command is output to the offset printing unit driving motor driver 141 in step P60, and an intaglio in step P61. A stop command is output to the printing unit auxiliary motor driver 147, and a stop command is output to the wiping / roll driving motor driver 151 in step P62, and the process returns to step P1.

  On the other hand, if NO in step P59, the current command rotation speed memory M104 is overwritten with the corrected current command rotation speed in step P63, and then the current command rotation speed is read from the memory M104 in step P64. .

  Next, after calculating the current command rotational speed of the wiping / roll driving motor 152 from the current command rotational speed in step P65 and storing it in the memory M109, the current command rotational speed is read from the memory M104 in step P66. .

  Next, in step P67, the speed control command and the current command rotational speed are output to the offset printing unit driving motor driver 141, and in step P68, the current command rotational speed of the wiping / roll driving motor 152 is read from the memory M109. Include.

  Next, in step P69, the speed control command and the current command rotational speed are output to the wiping / roll drive motor driver 151. Then, in step P70, the current command rotational speed is read from the memory M104. The command rotational speed memory M105 is overwritten with the current command rotational speed, and the process returns to Step P53.

  Next, after the current value of the wiping / roll driving motor 152 is read from the wiping / roll driving motor / driver 151 in step P72 and stored in the memory M110, the current value display 137 for the wiping / roll driving motor is displayed in step P73. The current value of the wiping / roll driving motor 152 is displayed.

  Next, after reading the reference current value of the wiping / roll driving motor 152 from the memory M102 in step P74, the reference current value of the wiping / roll driving motor 152 is determined from the current value of the wiping / roll driving motor 152 in step P75. Is subtracted and the difference between the current values of the wiping / roll driving motor 152 is calculated and stored in the memory M111.

  Next, after the current value difference of the wiping / roll driving motor 152 is displayed on the current value difference display 138 for the wiping / roll driving motor at step P76, the torque distribution ratio setting of the intaglio printing unit auxiliary motor is set at step P77. It is determined whether or not a torque distribution rate is input to the device 135.

  If yes in step P77, the torque distribution rate of the intaglio printing unit auxiliary motor 148 is read from the torque distribution rate setting unit 135 of the intaglio printing unit auxiliary motor in step P78, stored in the memory M101, and the process proceeds to step P79. On the other hand, if no, the process directly proceeds to step P79.

  Next, after the current value of the offset printing unit driving motor 142 is read from the offset printing unit driving motor driver 141 in step P79 and stored in the memory M112, the rated current value of the offset printing unit driving motor 142 is set to M113 in step P80. Read from.

  Next, in step P81, the current value of the offset printing unit driving motor 142 is divided by the rated current value of the offset printing unit driving motor 142, and the torque rate of the offset printing unit driving motor 142 is calculated and stored in the memory M114. In step P82, the torque distribution ratio of the intaglio printing unit auxiliary motor 148 is read from the memory M101.

  Next, after multiplying the torque rate of the intaglio printing unit auxiliary motor 148 by the torque rate of the intaglio printing unit auxiliary motor 148 in step P83, calculating the torque rate of the intaglio printing unit auxiliary motor 148 and storing it in the memory M115, In step P84, the rated current value of the intaglio printing unit auxiliary motor 148 is read from the memory M116.

  Next, in step P85, the torque rate of the intaglio printing unit auxiliary motor 148 is multiplied by the rated current value of the intaglio printing unit auxiliary motor 148, and the current value (drive torque value) of the intaglio printing unit auxiliary motor 148 is calculated to obtain the memory M117. In step P86, the torque control command and the current value (drive torque value) of the intaglio printing unit auxiliary motor 148 are output to the intaglio printing unit auxiliary motor driver 147, and the process returns to step P53.

  According to the above operation flow, the speed switching control and the torque control of the intaglio printing unit auxiliary motor 148 are performed even when the sheet-fed printing press 10 is decelerated, similar to the above-described constant speed or increased speed.

  Next, in step P87 transferred from step P7 described above, it is determined whether or not the set rotational speed has been input to the rotational speed setting unit 132 for offset printing unit single drive. If yes, the offset printing unit only is determined in step P88. The rotational speed for single driving of the offset printing unit is read from the driving rotational speed setter 132 and stored in the memory M119, and the process proceeds to Step P89. If not, the process proceeds directly to Step P89.

  Next, in step P89, it is determined whether or not the set rotational speed is input to the intaglio printing unit single drive rotational speed setting unit 133. If yes, the intaglio printing unit single drive rotational speed setter 133 is determined in step P90. Thus, the intaglio printing unit single drive rotational speed is read and stored in the memory M120 and the process proceeds to Step P91. If not, the process immediately proceeds to Step P91.

  Next, in step P91, it is determined whether or not the set rotational speed is input to the wiping / roll single drive rotational speed setter 134. If yes, the wiping / roll single drive rotational speed setter 134 is determined in step P92. Thus, the rotational speed for wiping / rolling single drive is read and stored in the memory M121, and the process proceeds to Step P93. If not, the process immediately proceeds to Step P93.

  Next, in step P93, it is determined whether or not the offset printing unit single drive switch 122 is turned on. If yes, a connection release signal is output to the printing unit connection clutch 156 in step P94. The process proceeds to Step P97 described later.

Next, after reading the rotational speed for single driving of the offset printing unit from the memory M119 in Step P95, the speed control command and the rotational speed for single driving of the offset printing unit are output to the driving motor driver 141 of the offset printing unit in Step P96. To do.

Next, it is determined whether or not the intaglio printing unit single drive switch 124 is turned on in the above-described step P97, and if yes, a connection release signal is output to the printing unit connecting clutch 156 in step P98. If there is, the process proceeds to Step P101 described later.

  Next, in Step P99, the intaglio printing unit single drive rotation speed is read from the memory M120, and in Step P100, the speed control command and the intaglio printing unit single drive rotation speed are output to the intaglio printing unit auxiliary motor driver 147. To do.

  Next, it is determined whether or not the wiping / roll single drive switch 126 is turned on in the above-described step P101. If yes, the wiping / roll single drive rotational speed is read from the memory M124 in step P102, and then the step. On the other hand, the process proceeds to P103, and if not, the process proceeds to Step P104 described later.

  Next, after outputting the speed control command and the wiping / roll single drive rotation speed to the wiping / roll drive motor driver 151 in step P103, is the offset printing unit single drive stop switch 123 turned on in step P104 described above? Judge whether or not.

  Next, if yes in Step P104, a stop command is output to the offset printing unit driving motor driver 141 in Step P105, and then the process proceeds to Step P106. If not, the process immediately proceeds to Step P106.

  Next, in Step P106, it is determined whether or not the intaglio printing unit single drive stop switch 125 is turned on. If yes, a stop command is output to the intaglio printing unit auxiliary motor driver 147 in Step P107, and then Step On the other hand, if the result is NO, the process immediately goes to Step P108.

  Next, it is determined whether or not the wiping / roll single drive stop switch 127 is turned on in Step P108. If yes, a stop command is output to the wiping / roll drive motor driver 151 in Step P109, On the other hand, the process proceeds to P110. If the result is NO, the process proceeds to Step P110.

  Next, in step P110, it is determined whether or not a stop command is being output to the offset printing unit driving motor driver 141, the intaglio printing unit auxiliary motor driver 147, and the wiping roll drive motor driver 151. If the answer is NO, the process returns to Step P87.

  According to the above operation flow, the offset printing unit driving motor 142, the intaglio printing unit auxiliary motor 148, and the wiping / roll driving motor 152 are individually driven to rotate, and each printing unit is independently driven. The speed control command for each motor / driver in the above embodiment is a command for controlling each motor to be driven at the output rotational speed, and the torque control command is for driving each motor with the output torque. Command to control as follows.

  As described above, in this embodiment, the offset printing unit 20 and the intaglio printing unit 30 are connected by the gear train, and the load is the largest and the load apart from the offset printing unit driving motor 142 that drives the entire sheet-fed printing press 10. An intaglio printing unit auxiliary motor 148 is provided in the intaglio printing unit 30 having a large variation, and the entire sheet-fed printing press 10 is driven by the offset printing unit driving motor 142 and the intaglio printing unit auxiliary motor 148, and the offset printing unit driving motor 142 is driven. The current value (driving torque value) of the intaglio printing unit auxiliary motor 148 is controlled according to the driving current value (torque value), the torque distribution ratio of the intaglio printing unit auxiliary motor 148, and the rated current value of the intaglio printing unit auxiliary motor 148. It has come to be.

  As a result, the drive torque distribution rate of the intaglio printing unit auxiliary motor 148 during printing can be appropriately set according to the load fluctuation of the intaglio printing unit 30, and thus the capacity of the offset printing unit driving motor 142 can be reduced. . As a result, the drive system of the sheet-fed printing press 10 can be downsized, and cost reduction and high-speed printing can be achieved.

  Further, in this embodiment, since the current value indicator 137 for the wiping / roll driving motor and the current value difference indicator 138 for the wiping / roll driving motor are provided, the wiping / roll driving motor current value indicator 138 is displayed. Based on the load of the roll drive motor 152, the operator can adjust the torque of the intaglio printing unit auxiliary motor 148. That is, the torque control of the intaglio printing unit auxiliary motor 148 can be performed semi-automatically.

  In addition, since the offset printing unit 20 and the intaglio printing unit 30 can be independently driven by the offset printing unit driving motor 142 and the intaglio printing unit auxiliary motor 148, respectively, under the disengagement of the printing unit connection clutch 156, each printing unit 20 and 30, printing preparation work such as blanket cleaning and inker cleaning can be performed individually. At this time, a nail relief mechanism for a large number of claws 47a and 49a in the above-described gripping claw devices 47 and 49 provided between the last transfer cylinder 23e of the offset printing unit 20 and the first transfer cylinder 23f of the intaglio printing unit 30 (described above). The offset printing unit 20 and the intaglio printing unit 30 can be driven independently without any trouble by the annular groove 50 and the dimension L).

  The present invention is applicable to a drive control method and a drive control apparatus for a printing press such as a sheet-fed printing press.

4A Belt 4B Worm gear mechanism 10 Sheet-fed printing machine 20 Offset printing unit 20a-20d Offset front surface printing unit 20e-20h for first to fourth colors Offset back surface printing unit 20i for first color to fourth color 20i Surface drying unit 20j Back surface Drying unit 20k Rotary screen printing unit 20l Drying unit 21a-21i Impression cylinder 22a-22c Drying cylinder 23a-23f Transfer cylinder 30 Intaglio printing section 31 Impression cylinder 32 Intaglio cylinder 34 Wiping device 34a Wiping roll 141 Offset printing section motor motor driver 142 Offset Printing Unit Driving Motor 143 Offset Printing Unit Driving Motor Rotary Encoder 147 Intaglio Printing Unit Auxiliary Motor Driver 148 Intaglio Printing Unit Auxiliary Motor 149 Intaglio Printing Unit Auxiliary Motor Rotary encoder 151 Wiping / roll driving motor / driver 152 Wiping / roll driving motor 153 Rotary encoder for wiping / roll driving motor 156 Clutch for connecting the printing section 157 Connection detector for clutch for connecting the printing section 200 Offset printing section and intaglio printing Drive control device

Claims (8)

An offset printing section for performing offset printing;
An intaglio printing section for intaglio printing;
A gear train for drivingly connecting the offset printing unit and the intaglio printing unit;
A driving motor for driving the offset printing unit and the intaglio printing unit;
In a printing press equipped with
An auxiliary motor is provided in the intaglio printing unit,
Driving the auxiliary motor according to a torque value for driving the driving motor;
A drive control method for a printing press. The driving torque value of the auxiliary motor is obtained from the torque for driving the driving motor, the torque distribution rate of the auxiliary motor, and the rated current value of the auxiliary motor.
The drive control method for a printing press according to claim 1. A wiping roll motor for driving the wiping roll of the intaglio printing unit;
A current value display for displaying a driving torque value of the wiping roll motor;
Further provided,
Adjusting the torque of the auxiliary motor according to the current value of the current value indicator;
The drive control method for a printing press according to claim 1. A first transfer cylinder provided with a first holding unit for transferring a printed matter printed by the offset printing unit to the intaglio printing unit;
A second transfer cylinder having a second holding unit for receiving a printed matter printed by the offset printing unit from the offset printing unit;
A clutch for connecting / disconnecting a gear train between the first transfer cylinder and the second transfer cylinder;
A claw relief mechanism for preventing the second holding part or the first holding part from coming into contact with the first transferring cylinder or the second transferring cylinder;
With
Each of the driving motor and the auxiliary motor is driven independently;
The drive control method for a printing press according to claim 1. An offset printing section for performing offset printing;
An intaglio printing section for intaglio printing;
A gear train for drivingly connecting the offset printing unit and the intaglio printing unit;
A driving motor for driving the offset printing unit and the intaglio printing unit;
In a printing press equipped with
An auxiliary motor is provided in the intaglio printing unit,
In accordance with a torque value for driving the driving motor, a control device for driving the auxiliary motor is provided.
A drive control device for a printing press. The control device obtains a driving torque value of the auxiliary motor from a torque for driving the driving motor, a torque distribution ratio of the auxiliary motor, and a rated current value of the auxiliary motor.
The drive control device for a printing press according to claim 5. A wiping roll motor for driving the wiping roll of the intaglio printing unit;
A current value display for displaying a driving torque value of the wiping roll motor;
Further provided,
The drive control device for a printing press according to claim 5. A first transfer cylinder provided with a first holding unit for transferring a printed matter printed by the offset printing unit to the intaglio printing unit;
A second transfer cylinder having a second holding unit for receiving a printed matter printed by the offset printing unit from the offset printing unit;
A clutch for connecting / disconnecting a gear train between the first transfer cylinder and the second transfer cylinder;
A claw relief mechanism for preventing the second holding part or the first holding part from coming into contact with the first transferring cylinder or the second transferring cylinder;
With
The control device individually controls the driving motor and the auxiliary motor;
The drive control device for a printing press according to claim 5.

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