JP2018122472A - Drive control device of printing machine and drive control method of printing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent collision of claws and prevent occurrence of misregister of the front and back.SOLUTION: A drive control device includes: a main machine which includes a plurality of cylinders; and a reverse mechanism which reverses a paper sheet. The plurality of cylinders used in the main machine are synchronously driven by a first drive source 5. One cylinder used in the reverse mechanism includes: drive control means 55 which is driven by a second drive source 6 and causes the second drive source 6 to drive with respect to the first drive source 5 so that the difference between the rotation position of the cylinder used in the main machine and the rotation position of the cylinder on the reverse mechanism side becomes less than the preset setting value; and stop means 56 which stops driving of the main machine and reverse mechanism in a case where the difference between the rotation position on the main machine side and the rotation position on the reverse mechanism side becomes equal to or greater than the setting value.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a drive control device for a printing press provided with a reversing mechanism for reversing the sheet so that printing can be performed on the other side of the sheet printed on one side, and drive control for the printing press. Regarding the method.

  The printing machine includes a paper feeding side transfer cylinder that receives a sheet from the swing device, a printing cylinder that receives and prints a sheet from the paper supply side transfer cylinder, and a sheet printed by the printing cylinder. An adsorbing cylinder for receiving and transporting a sheet, a reversing cylinder for receiving a sheet from the adsorbing cylinder, and a transfer cylinder for passing the sheet received from the reversing cylinder to the printing cylinder. It is equipped with. Each of the sheet feeding side transfer cylinder, the printing cylinder, the suction cylinder, the reversal cylinder, and the transfer cylinder is provided with a gripper having an openable / closable nail for holding a sheet.

  The swing device, the sheet feeding side transfer cylinder, the printing cylinder, the reversing cylinder, and the transfer cylinder are coupled to each other by gears, and are driven by one drive motor. On the other hand, only the suction cylinder is driven by a dedicated suction cylinder drive motor different from the drive motor. In this way, a dedicated suction cylinder drive motor for driving the suction cylinder is provided so that the rear end (paper bottom) of the sheet holding the tip with the nail of the suction cylinder is replaced with the nail of the reversing cylinder. In this case, if the rotation speed of the suction cylinder is not changed according to the difference in size in the sheet transport direction, the rear edge of the sheet (paper edge) and the nail of the reversing cylinder are held by the suction cylinder nails. This is because the phases cannot be matched. Therefore, when the rear end (paper bottom) of the sheet received in the suction cylinder is replaced with the nail of the reverse cylinder, the rotation speed of the suction cylinder is adjusted according to the size difference in the sheet transport direction. Control is performed based on angle information of a rotary encoder provided in the system (for example, see Patent Document 1).

  As described above, the suction cylinder drive motor is driven so that the rear end (paper bottom) of the sheet received and conveyed by the suction cylinder matches the phase of the reversing cylinder claw including the rear end (paper bottom). Even so, for example, the suction cylinder drive motor may not be driven as planned due to malfunction of the suction cylinder drive motor. However, since there is no means for solving such a situation, there is a possibility that the claws collide with each other at the time of delivery of the sheet, or the claws collide with the surface of the trunk to damage the claws. Further, even if the claw collision can be avoided, if the phase is shifted, a so-called misregistration between the front side and the back side, in which the printing start position on the back side of the sheet is shifted from the printing start position on the front side, occurs. There was also inconvenience and there was room for improvement.

JP 2014-234262 A

  Accordingly, the present invention has been made in view of such circumstances, and provides a drive control device and a drive control method for a printing press that can prevent claws from colliding and prevent occurrence of misregistration between the front and back sides. The issue is to provide.

  A drive control device for a printing machine according to the present invention comprises a machine configured by arranging a plurality of cylinders for printing one side of a sheet while conveying the sheet in the conveying direction, A reversing mechanism having a plurality of cylinders for reversing the sheet and delivering it to the machine so that the sheet printed by the machine is delivered and the other side of the sheet is printed. The plurality of cylinders used in the machine are mechanically linked and connected, and the plurality of cylinders are operated synchronously by a first drive source, and one of the plurality of cylinders used in the reversing mechanism is provided. The body is driven by a second drive source different from the first drive source, and this apparatus side detection means for detecting rotational position information of one of the plurality of cylinders used in the apparatus, and the second A reversing mechanism side detecting means for detecting rotational position information of a reversing mechanism side cylinder driven by a driving source; The second drive source is driven by the first drive source so that the difference between the rotational position information from the means and the rotational position information from the reversing mechanism side detection means is less than a preset value. When the difference between the rotational position information from the drive control means and the machine side detection means and the rotational position information from the reversing mechanism side detection means is greater than or equal to the set value, the first drive source and the second drive And stop means for stopping the driving of the source.

  According to the present invention, the drive control means causes the first so that the difference between the rotational position information from the main unit side detecting means and the rotational position information from the reversing mechanism side detecting means is less than a preset set value. The second drive source is driven and controlled with respect to the drive source. When the difference between the rotational position information from the main unit side detection means and the rotational position information from the reversing mechanism side detection means is greater than or equal to a set value, the stop means stops the driving of the first drive source and the second drive source. Accordingly, it is possible to prevent claws from colliding with each other and the cylinder constituting the reversing mechanism, and to prevent misregistration between the front and the back.

  Further, a drive control device for a printing press according to the present invention includes a machine configured by arranging a plurality of cylinders for printing one side of a sheet while conveying the sheet in the conveyance direction. A reversal having a plurality of cylinders for delivering the sheet printed by the machine and inverting the sheet to be printed on the other side of the sheet to be delivered to the machine And a plurality of cylinders used in the machine are mechanically linked, and the plurality of cylinders are operated synchronously by a first drive source, and the plurality of cylinders used in the reversing mechanism are One cylinder is driven by a second drive source different from the first drive source, and this machine side detection means for detecting rotational position information of one of the plurality of cylinders used in the machine, A reversing mechanism side detecting means for detecting rotational position information of a cylinder on the reversing mechanism side driven by the second driving source; The second drive source with respect to the first drive source so that the difference between the rotational position information from the side detection means and the rotational position information from the reversing mechanism side detection means is less than a preset value. When the difference between the rotational position information from the drive control means to be driven and the machine side detection means and the rotational position information from the reversing mechanism side detection means is greater than or equal to the set value, the first drive source and the first Stop means for stopping the drive of the two drive sources, and the set value is determined by the sheet from the machine in the circumferential section of one of the cylinders used for the reversing mechanism. A first set value in a delivery section delivered to one body and a second set value in another section excluding the delivery section, wherein the first set value is smaller than the second set value It is characterized by being set to a value.

  According to the present invention, the drive control means causes the first so that the difference between the rotational position information from the main unit side detecting means and the rotational position information from the reversing mechanism side detecting means is less than a preset set value. The second drive source is driven and controlled with respect to the drive source. When the difference between the rotational position information from the main unit side detection means and the rotational position information from the reversing mechanism side detection means is greater than or equal to a set value, the stop means stops the driving of the first drive source and the second drive source. Accordingly, it is possible to prevent claws from colliding with each other and the cylinder constituting the reversing mechanism, and to prevent misregistration between the front and the back. And since the 1st setting value in a delivery section is set to a value smaller than the 2nd setting value in the section except a delivery section, while performing severe control at the time of delivery, preventing a claw collision reliably However, by performing rough control in a section where there is no claw collision, it is possible to prevent an excessive drive stop of the machine and the reversing mechanism.

  In the printing press drive control device according to the present invention, the first set value includes two set values having different sizes, and when the difference is equal to or larger than the large set value, The stop means is configured to stop driving of the first drive source and the second drive source in a state in which synchronization with the second drive source is released, and the difference is not less than a small set value and the large When it is smaller than a set value, the stop means is configured to stop the first drive source and the second drive source while maintaining the synchronization between the first drive source and the second drive source. Preferably it is.

  According to such a configuration, when the difference between the rotational position information from the main unit side detection means and the rotational position information from the reversing mechanism side detection means is greater than a large set value, the first drive source and the second drive source By stopping both drive sources in the state of releasing the synchronization, it is possible to immediately and separately stop the drum on the machine side and the cylinder on the reversing mechanism side, thus reliably preventing claws from colliding be able to. If the difference is greater than or equal to a small set value and smaller than a large set value, the claws will collide even if both drive sources are stopped while maintaining synchronization between the first drive source and the second drive source. There is nothing to do. By stopping in this way, when the first drive source and the second drive source are driven again, it is possible to eliminate the trouble of synchronizing the both again.

  In the drive control device for a printing press according to the present invention, the plurality of cylinders constituting the reversing mechanism are driven by the second drive source and receive the front end of the sheet from the cylinder on the printer side. A reversing transfer cylinder, and a reversing cylinder that receives a rear end of the sheet from the reversing transfer cylinder, and the second set value is a section of the reversing transfer cylinder in a circumferential direction of the machine. A third set value in a section until the rear end of the sheet delivered from the cylinder to the reversing transfer cylinder is detached from the cylinder of the machine, and is delivered to the reversing cylinder by detaching from the machine cylinder. It is preferable that the third set value is set to a value smaller than the fourth set value.

  According to such a configuration, the third set value in the section until the trailing edge of the sheet added by the reversing transfer cylinder is removed from the drum of the machine is the rear end of the sheet added by the reversing transfer cylinder. If it is set to a value smaller than the fourth set value in the section until it is removed from the drum of this machine and delivered to the reverse drum, the trailing edge of the sheet delivered to the reverse drum is Since the change in the sheet conveyance speed can be suppressed until the sheet is removed from the cylinder, it is possible to prevent the sheet from being inadvertently changed in posture and coming into contact with the body of the machine and being damaged.

  Further, a drive control method for a printing machine according to the present invention includes a machine configured by arranging a plurality of cylinders for printing one side of a sheet while conveying the sheet in the conveyance direction. A reversal having a plurality of cylinders for delivering the sheet printed by the machine and inverting the sheet to be printed on the other side of the sheet to be delivered to the machine And a plurality of cylinders used in the machine are mechanically linked, and the plurality of cylinders are operated synchronously by a first drive source, and the plurality of cylinders used in the reversing mechanism are One cylinder is a printer that is driven by a second drive source different from the first drive source, and this machine side detection detects rotational position information of one cylinder among a plurality of cylinders used in the machine. And a reversing mechanism for detecting rotational position information of the cylinder on the reversing mechanism side driven by the second drive source The first drive source is set such that the difference between the detection step and the rotational position information from the main unit side detection step and the rotational position information from the reversing mechanism side detection step is less than a preset value. When the difference between the drive control step for driving the second drive source and the rotational position information from the machine side detection step and the rotational position information from the reversing mechanism side detection step is equal to or greater than the set value, And a stop step of stopping the driving of the first driving source and the second driving source, and controlling the driving of the main unit and the reversing mechanism.

  According to this configuration, the drive control step causes the first difference so that the difference between the rotational position information from the main unit side detection step and the rotational position information from the reversing mechanism side detection step is less than a preset set value. The second drive source is driven and controlled with respect to the drive source. When the difference between the rotational position information from the machine side detection step and the rotational position information from the reversing mechanism side detection step is equal to or greater than a set value, the driving of the first drive source and the second drive source is stopped by the stop step. Accordingly, it is possible to prevent claws from colliding with each other and the cylinder constituting the reversing mechanism, and to prevent misregistration between the front and the back.

  Further, a drive control method for a printing machine according to the present invention includes a machine configured by arranging a plurality of cylinders for printing one side of a sheet while conveying the sheet in the conveyance direction. A reversal having a plurality of cylinders for delivering the sheet printed by the machine and inverting the sheet to be printed on the other side of the sheet to be delivered to the machine And a plurality of cylinders used in the machine are mechanically linked, and the plurality of cylinders are operated synchronously by a first drive source, and the plurality of cylinders used in the reversing mechanism are One cylinder is a printer that is driven by a second drive source different from the first drive source, and this machine side detection detects rotational position information of one cylinder among a plurality of cylinders used in the machine. And a reversing mechanism for detecting rotational position information of the cylinder on the reversing mechanism side driven by the second drive source The first drive source is set such that the difference between the detection step and the rotational position information from the main unit side detection step and the rotational position information from the reversing mechanism side detection step is less than a preset value. When the difference between the drive control step for driving the second drive source and the rotational position information from the machine side detection step and the rotational position information from the reversing mechanism side detection step is equal to or greater than the set value, A stop step for stopping the driving of the first drive source and the second drive source, and the set value is the machine of the circumferential section of one of the cylinders used for the reversing mechanism. A first set value in a transfer section in which a sheet of paper is transferred to the one cylinder, and a second set value in another section excluding the transfer section, the first set value being the first set value 2 is smaller than the set value It is set to, and controls the drive of the camcorder and the reversing mechanism.

  According to this configuration, the drive control step causes the first difference so that the difference between the rotational position information from the main unit side detection step and the rotational position information from the reversing mechanism side detection step is less than a preset set value. The second drive source is driven and controlled with respect to the drive source. When the difference between the rotational position information from the machine side detection step and the rotational position information from the reversing mechanism side detection step is equal to or greater than a set value, the driving of the first drive source and the second drive source is stopped by the stop step. Accordingly, it is possible to prevent claws from colliding with each other and the cylinder constituting the reversing mechanism, and to prevent misregistration between the front and the back. And since the 1st setting value in a delivery section is set to a value smaller than the 2nd setting value in the section except a delivery section, while performing severe control at the time of delivery, preventing a claw collision reliably However, by performing rough control in a section where there is no claw collision, it is possible to prevent an excessive drive stop of the machine and the reversing mechanism.

  As described above, according to the present invention, when the difference between the rotation position information from the machine side detection means and the rotation position information from the reversing mechanism side detection means is equal to or larger than the set value, the machine and the reversing mechanism are driven. By stopping, it is possible to provide a drive control device for a printing press and a drive control method for a printing press that can prevent claws from colliding with each other and prevent occurrence of misregistration between the front and back sides.

1 is a schematic side view of a printing press according to an embodiment of the present invention. It is a block diagram which shows the structure of the drive control apparatus of a printing press. It is a flowchart which shows control of the drive control apparatus of a printing press. It is a graph which shows the rotation angle of the inversion transfer cylinder and printing side transfer cylinder in case a sheet is the shortest paper, respectively. It is a side view of a cylinder which shows the timing which a reverse transfer cylinder receives the sheet from a processing cylinder. FIG. 6 is a side view of the cylinder showing a timing at which the paper bottom of the sheet received by the reverse transfer cylinder is detached from the processing cylinder. It is a side view of the cylinder showing the timing when the reverse cylinder adds the paper bottom of the sheet being conveyed by the reverse transfer cylinder. It is a side view of the cylinder showing the timing just before the reverse transfer cylinder adds the sheet of the processing cylinder. It is a graph which shows each rotation angle of the inversion transfer cylinder and printing side transfer cylinder in case a sheet is the largest paper. FIG. 5 is a side view of the cylinder showing a state in which the rear segment of the reverse transfer cylinder is separated from the front segment when the sheet is the largest sheet.

  Hereinafter, an embodiment of a drive control device for a printing press according to the present invention will be described with reference to the drawings. FIG. 1 shows a printing press provided with a drive control device. The printing machine is printed by a paper feeding unit 1 that feeds a sheet of paper toward the printing unit 2, a printing unit 2 that receives and prints a sheet from the paper feeding unit 1, and printing is performed by the printing unit 2. A paper discharge unit 3 for stocking sheets.

  The paper feeding unit 1 includes a pre-printing storage unit 11 for stocking sheets, and a feeder 12 as a paper feeding device that feeds sheets of the pre-printing storage unit 11 one by one to the printing unit 2. A sheet feeding cylinder 13 which is a transfer cylinder having a small diameter for receiving and conveying a sheet from the feeder 12, and a sheet feeding cylinder 13 which receives the sheet from the sheet feeding cylinder 13 and conveys the sheet to the printing unit 2. A paper supply side transfer cylinder 14 having a double diameter. Each of the sheet feeding cylinder 13 and the sheet feeding side transfer cylinder 14 is provided with a gripper (not shown) for holding a sheet by the nail base and the nail and a recess for receiving the gripper. In this way, the sheet is delivered. Further, the feeder 12 is provided with a feeder clutch 53 (see FIG. 2), and paper feeding is stopped by turning off the feeder clutch 53 and stopping the feeder 12 by a drive control means 55 described later. .

  The paper discharge unit 3 includes a post-print storage unit (not shown) that stocks a sheet of paper that has been printed on one or both sides by the printing unit 2, and a sheet printed by the printing unit 2 as described above. A transport unit (here, a chain-type transport unit) 31 that transports the paper to the storage unit after printing.

  The printing unit 2 receives a sheet from the paper supply side transfer cylinder 14 and conveys it, and receives a sheet from the print side transfer cylinder 21 and receives an ink supply device (not shown). And a processing cylinder 22 that is supplied with ink and performs printing on one surface.

  A plurality of sheets for transferring the sheet printed by the processing cylinder 22 below the printing unit 2 and inverting the sheet so as to print the other side of the sheet and transferring it to the processing cylinder 22 again. A reversing mechanism 4 having a cylindrical body is provided. The reversing mechanism 4 includes a reversing transfer cylinder 41 disposed below the processing cylinder 22, a reversing cylinder 42 disposed below the printing-side transfer cylinder 21, and receiving and reversing the sheet from the reversing transfer cylinder 41, It has.

  The printing-side transfer cylinder 21 has a diameter approximately twice that of the paper supply cylinder 13, and two grippers 21G each composed of a nail base and a nail are arranged at an interval of about 180 degrees in order to hold and hold a sheet. Are accommodated in two recesses 21R formed in the printing-side transfer cylinder 21 (see FIG. 5). Further, the processing cylinder 22 has a diameter approximately three times that of the sheet feeding cylinder 13, and three grippers 22G composed of a claw base and a claw have an interval of about 120 degrees in order to hold and hold a sheet. These are respectively accommodated in three recesses 22R formed in the processing cylinder 22 (see FIG. 5).

  The reverse transfer cylinder 41 has a diameter approximately twice that of the paper supply cylinder 13 and rotates around a fixed segment (hereinafter referred to as “front segment”) 41A and the rotation center of the reverse transfer cylinder 41 as shown in FIG. The support body which has the rotation segment (henceforth "rear segment") 41B which can move is provided in two places at intervals of 180 degree | times in the circumferential direction. The outer peripheral surfaces of the front segments 41A and the rear segments 41B are formed in an arc shape and are arranged on the same curved surface. And each front segment 41A and each rear segment 41B are comprised in the comb-tooth shape which can mutually mesh | engage, and when each rear segment 41B rotated, both approached the front segment 41A and both meshed deeply. It is possible to switch between the state and the state in which the meshing is substantially eliminated by separating from the front segment 41A. Therefore, by rotating the rear segment 41B by the maximum angle toward the side away from the front segment 41A at the rotation center of the reversing transfer cylinder 41, the engagement between the two is substantially eliminated, so that the circumferential length of the outer peripheral surface of the front segment 41A is reduced. The circumferential length including the circumferential length of the outer peripheral surface of the rear segment 41B is substantially equal to the longest length corresponding to the largest sheet in the conveyance direction among the sheets handled by the printing press. It has been set (see FIG. 10). Further, by rotating the rear segment 41B so as to be deeply engaged with the front segment 41A, the circumferential length obtained by adding the rear outer peripheral surface of the rear segment 41B to the outer peripheral surface of the front segment 41A is a sheet handled by the printing press. The length in the conveyance direction of the sheets is set to be approximately equal to the shortest length corresponding to the smallest sheet (see FIG. 5). In addition, a gripper 41G composed of a claw base and a claw is provided at the front end of one front segment 41A in the rotational direction so that the front end of the sheet from the processing cylinder 22 can be held and held. Further, a sucker 41S for adsorbing the rear end of the sheet having the front end held by the gripper 41G of the one front segment 41A at the rear end in the rotational direction of one rear segment 41B paired with one front segment 41A. It has.

  The reversing cylinder 42 is composed of a small cylinder having substantially the same diameter as the sheet feeding cylinder 13, and accommodates a gripper 42G made up of a pair of claws in a recess 42R formed at one place in the circumferential direction. The reversing cylinder 42 rotates twice while the reversing transfer cylinder 41 rotates once.

  Here, the sheet feeding cylinder 13, the sheet feeding side transfer cylinder 14, the printing side transfer cylinder 21, the processing cylinder 22, and the reversing cylinder 42 are mechanically linked and connected by a gear (not shown) as one first drive source. This machine motor 5 (see FIG. 2) is configured to be operated synchronously. Among these cylinders that are operated synchronously, the sheet feeding cylinder 13, the sheet feeding side transfer cylinder 14, the printing side transfer cylinder 21, and the processing cylinder 22 constitute this machine. The printing-side transfer cylinder 21 is provided with an encoder (hereinafter referred to as a synchronization source encoder) 7 (see FIG. 2) as a machine-side detection unit that detects a rotation angle that is rotation position information. Further, the reverse transfer cylinder 41 is driven by a servo motor 6 (see FIG. 2) as a second drive source different from the machine motor 5. The servo motor 6 includes an encoder 8 (see FIG. 2) as a reversing mechanism side detecting unit that detects a rotation angle that is rotational position information of the reversing transfer cylinder 41. As described above, the reversing transfer drum 41 constitutes the reversing mechanism 4 together with the reversing drum 42, and is driven separately from this machine. In addition, this machine motor 5 can also be comprised from a servomotor provided with an encoder.

  A block diagram of the drive control device of the printing press is shown in FIG. This drive control device is based on servo amplifier 9 for driving the servo motor 6 and detection information of the rotation angle (or rotation position) from the synchronization source encoder 7 and encoder (servo motor encoder) 8 to the servo amplifier 9. A motion controller 10 for outputting a drive command signal, and a PLC (programmable) for calculating a signal based on feedback information from the servo amplifier 9 to control the motion controller 10 and outputting a signal to the interface 51 of the microprocessor 50 Logic controller) 52. A read-only ROM and a readable / writable RAM are connected to the microprocessor 50, and an on / off signal of the feeder clutch 53 and a drive control signal of the machine motor 5 are sent via an interface 51 based on a signal from the PLC 52. It is configured to output. Here, the feeder clutch 53 and the machine motor 5 are controlled from the PLC 52 via the microprocessor 50, but the peripheral circuit 54 including the microprocessor 50 is omitted, and the feeder clutch 53 and the machine directly from the PLC 52 are omitted. The motor 5 may be controlled.

  The PLC 52, the motion controller 10, the servo amplifier 9, the synchronization source encoder 7, and the encoder 8 constitute drive control means 55. In this drive control means 55, the difference between the rotational position information (rotational angle or rotational position) from the synchronization source encoder 7 and the rotational position information (rotational angle or rotational position) from the encoder 8 is less than a preset set value. The servo motor 6 is driven and controlled via the servo amplifier 9 with respect to the motor 5 of the machine. Further, when the difference between the rotational position information from the synchronization source encoder 7 and the rotational position information from the encoder 8 is larger than the set value, the PLC 52 stops driving the reversing transfer cylinder 41 of the main unit and the reversing mechanism. That is, a stop means 56 for stopping the driving of the motor 5 and the servo motor 6 is provided. Therefore, when the difference between the rotational position information from the synchronization source encoder 7 and the rotational position information from the encoder 8 is equal to or larger than the set value, the driving of the first drive source 5 and the second drive source 6 is stopped by the stop unit 56. By doing so, it is possible to prevent claws from colliding and to prevent misregistration between the front and back sides of the cylinder constituting the machine and the cylinder constituting the reversing mechanism.

  The set value is a first set value in a transfer section (A section to be described later) in which a sheet from the processing cylinder 22, which is one cylinder constituting the apparatus, is transferred to the reverse transfer cylinder 41 constituting the reversing mechanism. And a second set value in a section (B section and C section described later) excluding the delivery section, and the first set value is set to a value smaller than the second set value. In this way, since the first set value in the delivery section is set to a value smaller than the second set value in the section excluding the delivery section, severe control is performed at the time of delivery to prevent collision between the claws and the trunk. Excessive driving of the machine and the reversing mechanism is achieved by performing rough control in the section where claws collide with each other and claws do not collide with the trunk while reliably preventing claws from colliding with each other. Stopping can be prevented.

  Further, the first set value includes two set values of different sizes, specifically, a shift amount specified value E1 and a shift amount specified value E2 (E1> E2) shown in FIG. In the case where the deviation set value E1 or more, which is the large set value, is equal to or larger than the motor 5 as the first drive source and the servo motor 6 as the second drive source in a state where the synchronization of both the motors 5 and 6 is released. Is configured to stop. If the difference is not less than the specified deviation amount E2 which is the small set value and smaller than the specified deviation amount E1 which is the large set value, the motor 5 and the servo motor 6 are connected to both the motors 5 and 5. 6 is configured to stop without releasing the synchronization. As described above, when the difference between the rotational position information from the synchronization source encoder 7 and the rotational position information from the encoder 8 is equal to or larger than the deviation amount regulation value E1 that is a large set value, the first drive source 5 and the second drive source 5 By stopping the drive source 6 in a state in which the synchronization of both the motors 5 and 6 is released, the machine-side cylinders 13, 14, 21, 22, and 42 and the reversing mechanism-side cylinder 41 are immediately and separately stopped. Therefore, it is possible to reliably prevent the claws from colliding. Further, when the difference is not less than the prescribed deviation amount value E2 which is a small set value and smaller than the prescribed deviation amount value E1 which is a large set value, the first drive source 5 and the second drive source 6 are connected to both motors. Even if it stops in the state which maintained the synchronization of 5 and 6, a nail | claw does not collide. By stopping in this way, when the first drive source 5 and the second drive source 6 are driven again, it is possible to eliminate the trouble of performing the work of synchronizing both again.

  In addition, the second set value includes two large and small third set values and fourth set values having different sizes. Specifically, as shown in FIG. 3, a deviation amount prescribed value E3 that is a third set value and a deviation amount prescribed value E4 that is a fourth set value are provided. The third set value is in the B section until the rear end (paper bottom) of the sheet delivered from the processing cylinder 22 constituting the apparatus to the reverse transfer cylinder 41 is removed from the processing cylinder 22. This is a set value (a deviation amount prescribed value E3 in FIG. 3). The fourth set value is set in the C section until the rear end (paper bottom) of the sheet is removed from the processing cylinder 22 and immediately before the rear end (paper bottom) of the sheet is transferred to the reversal cylinder 42. It is a value (the deviation amount prescribed value E4 in FIG. 3). This section C also includes a section from after the transfer to the reversal cylinder 42 to just before the reversal transfer cylinder 41 receives the sheet from the processing cylinder 22. The value of the deviation amount prescribed value E3 is set to be smaller than the value of the deviation amount prescribed value E4 (E3 <E4). As described above, the deviation prescribed value E3, which is the third set value in the B section until the trailing edge (sheet bottom) of the sheet is removed from the processing cylinder 22 which is one of the cylinders of the machine, is the processing cylinder. 22 is set so as to be smaller than a deviation amount prescribed value E4 that is a fourth set value in the section C immediately before the trailing edge (paper bottom) of the sheet is removed and immediately before being transferred to the reversing drum 42. Thereby, since the sheet bottom of the sheet delivered to the reversing transfer cylinder 41 is removed from the processing cylinder 22 which is the cylinder of the apparatus, the sheet conveyance speed change can be suppressed. It is possible to prevent the leaf paper from being inadvertently changed in posture and coming into contact with the processing cylinder 22 which is the body of the apparatus and being damaged.

  A process of driving and controlling the printing press configured as described above by the drive control device will be described with reference to the flowchart of FIG. Here, the section A is a section in which the sheet is transferred, and the sheet is transferred from the processing cylinder 22 to the reverse transfer cylinder 41 and the sheet is transferred from the reverse transfer cylinder 41 to the reverse cylinder 42. There are two sections. The section B is a section from when a predetermined time elapses after the sheet is delivered from the processing cylinder 22 to the reverse transfer cylinder 41 until the sheet bottom of the sheet comes off the processing cylinder 22. Section C is a section unrelated to the delivery of the sheet, and is a section immediately before the delivery of the sheet from the reverse transfer cylinder 41 to the reverse cylinder 42 after the departure from the B section and the sheet to the reverse cylinder 42. There are two sections, a section from when a predetermined time has elapsed after the delivery of the leaf paper to immediately before the delivery of the sheet from the processing cylinder 22 to the reverse delivery cylinder 41. First, it is determined in which of the three sections A, B, and C the sheet is located. That is, it is determined whether or not the sheet is located in the A section (step S1). If the sheet is located in the A section, the rotational position information from the synchronization source encoder 7 and the rotational position information from the encoder 8 are detected. It is confirmed whether or not the difference with the deviation amount is equal to or greater than the prescribed deviation amount E1 (step S2). If the difference is equal to or greater than the deviation amount prescribed value E1, the machine motor 5 is stopped, the cylinders 13, 14, 21, 22, and 42 constituting the machine are stopped, and the servo motor 6 is stopped. The reversing transfer cylinder 41 of the reversing mechanism 4 is stopped (step S4). The servo motor 6 stops in a state where the synchronization with the motor 5 of the machine is released, and also turns off the feeder clutch 53 to stop the supply of the sheet, and ends the control. If the difference is less than the prescribed deviation amount value E1, it is checked whether the difference is equal to or greater than the prescribed deviation amount value E2 (step S3). When the difference is equal to or larger than the deviation amount prescribed value E2 and less than the deviation amount prescribed value E1, the servo motor 6 is stopped in a state where the synchronization with the motor 5 is maintained, and the reversing transfer cylinder 41 of the reversing mechanism 4 is used. And the feeder clutch 53 is turned off (cut) to stop the sheet supply (step S5), and the control is terminated.

  If the difference is less than the deviation amount prescribed value E2, the process returns to step S1 to check whether it is the A section. After passing through the A section and shifting to the B section (step S6), it is confirmed whether or not the difference is equal to or larger than the deviation amount prescribed value E3 (step S7). When the difference is equal to or greater than the deviation amount regulation value E3, the servo motor 6 is stopped while maintaining the synchronization with the motor 5 of the machine, the reversing transfer cylinder 41 of the reversing mechanism 4 is stopped, and the feeder clutch 53 is turned off. The sheet supply is stopped by turning off (cut) (step S5), and the control is terminated. When the difference is less than the deviation amount regulation value E3, the process returns to step S6 to check whether it is the B section. After passing through the B section and shifting to the C section (step S8), it is confirmed whether or not the difference is equal to or larger than the deviation amount prescribed value E4 (step S9). If the difference is equal to or greater than the deviation amount regulation value E4, the servo motor 6 is stopped in a state where the synchronization with the motor 5 is maintained, the reversing transfer cylinder 41 of the reversing mechanism 4 is stopped, and the feeder clutch 53 is The sheet supply is stopped by turning off (cut) (step S5), and the control is terminated. When the difference is less than the deviation amount regulation value E4, the process returns to step S8 to check whether it is the C section.

  Next, the A section to the C section will be further described based on the graph of FIG. In FIG. 4, the horizontal axis indicates the angle of the synchronization source encoder 7 of this machine (actually the rotation angle of the printing side transfer cylinder 21), the vertical axis indicates the angle of the encoder 8 of the servo motor 6, and the solid line indicates the printing side. The rotation angle of the transfer cylinder 21 is shown, and the broken line shows the rotation angle of the reverse transfer cylinder 41. Note that the sheet is a minimum sheet having a minimum size in the transport direction. In this graph, the rotational position of the reverse transfer cylinder 41 is decreased after entering the section C, whereby the position of the paper bottom of the sheet of paper that is held by the reverse transfer cylinder 41 is added to the rotation position of the gripper 42G of the reverse transfer cylinder 42. By matching, the sheet of the reverse transfer cylinder 41 is transferred to the reverse cylinder 42. After passing the sheet, the speed is increased and the position of the gripper 41G of the reverse transfer cylinder 41 is aligned with the position of the gripper 22G of the processing cylinder 22. First, the rotation angle of the reverse transfer cylinder 41 in FIG. 5 is set to 0 degree, and the sheet from the processing cylinder 22 is transferred to the reverse transfer cylinder 41 when the rotation angle is 0 degree. The point of time of rotation is designated as section A (see FIG. 4). Section B is the time when the reverse transfer cylinder 41 rotates from 28 degrees to 98 degrees, which is the end of the section A. FIG. 6 shows a state where the reverse transfer cylinder 41 is rotated 98 degrees. This 98 degree is an angle at which the paper bottom (end) of the sheet is slipped out from between the processing cylinder 22 and the reverse transfer cylinder 41, and even if the paper bottom (end) of the sheet flutters, This is an angle at which the paper bottom (end) does not contact the surface of the barrel 22. From the end of the B section to the C section, up to 220 degrees is a C section in which no sheets are delivered, and no claw collision occurs. Further, as described above after entering the section C, the rotation speed of the reversing transfer cylinder 41 is decreased, and the sheet bottom of the sheet of paper that is held by the reversing transfer cylinder 41 at the rotation position of the gripper 42G of the reversing cylinder 42 is removed. It is also the section where the position is adjusted. When section C ends, section A enters section A and is rotated 234 degrees at the timing when the paper bottom of the sheet of the reverse transfer cylinder 41 is received by the gripper 42G of the reverse cylinder 42 (see FIG. 7). Until the reversing cylinder 42 receives the sheet, the rotation of the reversing transfer cylinder 41 is controlled to rotate at a slow rotation speed in accordance with the length of the minimum sheet. After receiving the sheet, the reversing transfer cylinder 41 is rotated. Is controlled to match the rotational phase of the processing cylinder 22. Entering the C section from 252 degrees when the A section ends and rotating 345 degrees, the phase of the reversing transfer cylinder 41 and the processing cylinder 22 coincides, and the control in the A section described above is performed up to the paper receiving position of 0 degrees. Do. FIG. 8 shows a state where the reversing transfer drum 41 is rotated 329 degrees, which is 345 degrees.

  Further, the graph of FIG. 9 shows the rotation angle of the printing-side transfer cylinder 21 and the rotation angle of the reverse transfer cylinder 41 when the largest sheet of paper having the maximum size in the transport direction is used. In this case, the rotation angle of the printing-side transfer cylinder 21 and the rotation angle of the reverse transfer cylinder 41 are the same at any rotation position. It should be noted that the rotation angle of the reverse transfer cylinder 41 that transfers the sheet bottom of the sheet fed by the reverse transfer cylinder 41 to the reverse transfer cylinder 42 is 234 degrees, which is the same as the minimum paper. FIG. 10 shows the reverse transfer cylinder 41 in a state in which the rear segment 41B is rotated to the position farthest from the front segment 41A corresponding to the length of the maximum paper so that the maximum paper can be received.

  The present invention also has a drive control method for a printing press. This printing machine drive control method includes a machine-side detection step of detecting the rotational position information of the printing-side transfer cylinder 21 which is one of a plurality of cylinders by the synchronization source encoder 7 and a cylinder on the reversing mechanism side. The difference between the reversing mechanism side detecting step for detecting the rotational position information of a certain reversing transfer cylinder 41 by the encoder 8 and the rotating position information from the main unit side detecting step and the rotating position information from the reversing mechanism side detecting step is preset. A synchronous control step of driving and controlling the servo motor 6 as the second drive source with respect to the machine motor 5 as the first drive source so as to fall within a set value that is less than the set value, and the rotational position from the detection step on the machine side When the difference between the information and the rotational position information from the reversing mechanism side detection step is larger than the set value, a stop step for stopping driving of the reversing transfer cylinder 41 as the main unit and the reversing mechanism is performed. The set value includes a first set value in a delivery section (A section in this case) in which the sheet from the machine is delivered to the reversing transfer cylinder 41 of the reversing mechanism 4, and the delivery A second set value in a section excluding the section (here, B section and C section), the first set value is set to a value smaller than the second set value, and the machine and the inversion mechanism The driving of the reverse transfer cylinder 41 is controlled.

  Note that the drive control device and drive control method for a printing press according to the present invention are not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the present invention.

  For example, the reversing cylinder 42 may be driven by a motor different from the motor that drives the apparatus, and the reversing transfer cylinder 41 may be interlocked and connected to the apparatus.

  Further, the set values described above may be varied according to the size in the sheet transport direction. In this way, more accurate control can be performed.

  In the embodiment, the reversing mechanism 4 is composed of the two cylinders 41 and 42, but may be composed of three or more cylinders. When it is composed of three or more cylinders, one cylinder is driven by the second drive source, and the other remaining cylinders are linked to the machine-side cylinder via gears, and the remaining one is driven by the first drive source. The body and the body of this machine are operated synchronously.

  Further, in the above-described embodiment, the present machine is configured by the sheet feeding cylinder 13, the sheet feeding side transfer cylinder 14, the printing side transfer cylinder 21, and the processing cylinder 22, but the number of cylinders constituting the apparatus and the specifics of each cylinder. The configuration can be changed freely.

  In the embodiment, the servo motor is used as the second drive source. However, a stepping motor or a pulse motor may be used.

  In the above embodiment, the first set value is composed of two set values having different sizes. However, the first set value may be composed of one set value or three or more set values having different sizes.

  In the above-described embodiment, the second set value is configured by two deviation amount prescribed values E3 and E4 (E4> E3) having different sizes, but may be constituted by only one deviation amount prescribed value. It can also be implemented by configuring from three or more deviation amount prescribed values.

  Moreover, in the said embodiment, although the encoder was used, you may use a potentiometer, a resolver, etc.

DESCRIPTION OF SYMBOLS 1 ... Paper feed part, 2 ... Printing part, 3 ... Paper discharge part, 4 ... Reversing mechanism, 5 ... This machine motor, 5 ... 1st drive source (this machine motor), 6 ... 2nd drive source (servo motor) , 7 ... Synchronization source encoder (machine side detection means), 8 ... Encoder (reversing mechanism side detection means), 9 ... Servo amplifier, 10 ... Motion controller, 11 ... Pre-print storage section, 12 ... Feeder, 13 ... Paper feed Cylinder, 14 ... feeding side transfer cylinder, 21 ... printing side transfer cylinder, 21G ... gripper, 21R ... concave, 22 ... processing cylinder, 22G ... gripper, 22R ... concave, 23 ... feed cylinder, 41 ... reversing transfer cylinder, 41A ... front segment, 41B ... rear segment, 41G ... gripper, 41S ... sucker, 42 ... reverse cylinder, 42G ... gripper, 42R ... recess, 50 ... microprocessor, 51 ... interface, 53 ... feeder clutch, 54 ... peripheral Road, 55 ... drive control means, 56 ... stop means, E1, E2, E3, E4 ... shift amount specified value

Claims (6)

A machine configured by arranging a plurality of cylinders for printing one side of the sheet while conveying the sheet in the conveying direction, and the sheet printed by the machine is delivered. A reversing mechanism having a plurality of cylinders for reversing the sheet so as to print the other side of the sheet and delivering it to the machine,
The plurality of cylinders used in the machine are mechanically linked and connected, the plurality of cylinders are operated synchronously by a first drive source, and one cylinder among the plurality of cylinders used in the reversing mechanism is Driven by a second drive source that is different from the first drive source and detects the rotational position information of one of the plurality of cylinders used in the machine, and driven by the second drive source The difference between the reversing mechanism side detecting means for detecting the rotating position information of the reversing mechanism side cylinder and the rotating position information from the machine side detecting means and the rotating position information from the reversing mechanism side detecting means is preset. Drive control means for driving the second drive source with respect to the first drive source so as to be less than the set value, rotational position information from the main unit side detection means, and reversing mechanism side detection means If the difference from the rotation position information is greater than the set value Drive control apparatus for a printing press, characterized in that it comprises a and a stopping means for stopping the driving of the first drive source and the second drive source. A machine configured by arranging a plurality of cylinders for printing one side of the sheet while conveying the sheet in the conveying direction, and the sheet printed by the machine is delivered. A reversing mechanism having a plurality of cylinders for reversing the sheet so as to print the other side of the sheet and delivering it to the machine,
The plurality of cylinders used in the machine are mechanically linked and connected, the plurality of cylinders are operated synchronously by a first drive source, and one cylinder among the plurality of cylinders used in the reversing mechanism is Driven by a second drive source that is different from the first drive source and detects the rotational position information of one of the plurality of cylinders used in the machine, and driven by the second drive source The difference between the reversing mechanism side detecting means for detecting the rotating position information of the reversing mechanism side cylinder and the rotating position information from the machine side detecting means and the rotating position information from the reversing mechanism side detecting means is preset. Drive control means for driving the second drive source with respect to the first drive source so as to be less than the set value, rotational position information from the main unit side detection means, and reversing mechanism side detection means If the difference from the rotation position information is greater than the set value And a stopping means for stopping the driving of the first drive source and the second drive source,
The set value is a first set value in a delivery section in which a sheet from the machine is delivered to the one cylinder in a circumferential section of one of the cylinders used for the reversing mechanism. And a second set value in other sections excluding the delivery section, wherein the first set value is set to a value smaller than the second set value. Control device.   When the first set value includes two set values having different sizes and the difference is greater than or equal to a large set value, the first drive source and the second drive source are released from synchronization. Stop means is configured to stop driving the first drive source and the second drive source, and when the difference is not less than a small set value and smaller than the large set value, the stop means is the first drive source. 3. The printing press according to claim 2, wherein the first drive source and the second drive source are stopped in a state in which synchronization between the one drive source and the second drive source is maintained. Drive control device.   A plurality of cylinders constituting the reversing mechanism are driven by the second driving source and receive the front end of the sheet from the body-side cylinder, and a sheet from the reversing cylinder. A reversing cylinder that receives the rear end of the sheet, and the second set value is transferred from the body of the machine to the reversing transfer cylinder in a circumferential section of the reversing transfer cylinder. A third set value in a section until the trailing edge of the paper comes off the drum of the machine, and a fourth set value in a section until just before the paper is transferred to the reversing drum from the machine drum, The drive control device for a printing press according to claim 2 or 3, wherein the third set value is set to a value smaller than the fourth set value. A machine configured by arranging a plurality of cylinders for printing one side of the sheet while conveying the sheet in the conveying direction, and the sheet printed by the machine is delivered. And a reversing mechanism having a plurality of cylinders for reversing the sheet to be transferred to the apparatus to print the other side of the sheet, and a plurality of cylinders used in the apparatus Are coupled to each other mechanically, and the plurality of cylinders are synchronously operated by a first drive source, and one cylinder among the plurality of cylinders used for the reversing mechanism is different from the first drive source. In a printing machine driven by two drive sources,
This machine side detection step for detecting the rotational position information of one of a plurality of cylinders used in this machine, and the reversal for detecting the rotational position information of the cylinder on the reversing mechanism side driven by the second drive source The first drive source so that the difference between the rotational position information from the mechanism side detection step and the rotational position information from the main unit side detection step and the rotational position information from the reversing mechanism side detection step is less than a preset set value. When the difference between the drive control step for driving the second drive source and the rotational position information from the machine side detection step and the rotational position information from the reversing mechanism side detection step is equal to or greater than the set value. And a stop step for stopping the driving of the first driving source and the second driving source, and controlling the driving of the printer and the reversing mechanism. A machine configured by arranging a plurality of cylinders for printing one side of the sheet while conveying the sheet in the conveying direction, and the sheet printed by the machine is delivered. And a reversing mechanism having a plurality of cylinders for reversing the sheet to be transferred to the apparatus to print the other side of the sheet, and a plurality of cylinders used in the apparatus Are coupled to each other mechanically, and the plurality of cylinders are synchronously operated by a first drive source, and one cylinder among the plurality of cylinders used for the reversing mechanism is different from the first drive source. In a printing machine driven by two drive sources,
This machine side detection step for detecting the rotational position information of one of a plurality of cylinders used in this machine, and the reversal for detecting the rotational position information of the cylinder on the reversing mechanism side driven by the second drive source The first drive source so that the difference between the rotational position information from the mechanism side detection step and the rotational position information from the main unit side detection step and the rotational position information from the reversing mechanism side detection step is less than a preset set value. When the difference between the drive control step for driving the second drive source and the rotational position information from the machine side detection step and the rotational position information from the reversing mechanism side detection step is equal to or greater than the set value. A stop step of stopping driving of the first drive source and the second drive source,
The set value is a first set value in a delivery section in which a sheet from the machine is delivered to the one cylinder in a circumferential section of one of the cylinders used for the reversing mechanism. A second set value in other sections excluding the delivery section, and the first set value is set to a value smaller than the second set value to drive the machine and the reversing mechanism. A drive control method for a printing press, characterized by controlling.

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