JP4019290B2 - Horizontal perforation processing method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a horizontal perforation processing method for processing a horizontal perforation, which is a cutting line, on a continuous sheet printed by a printing press such as a rotary form press at predetermined intervals in the vertical direction. It is.
[0002]
[Prior art]
As is well known, horizontal perforation processing in a conventional form rotary printing machine includes a mechanical horizontal sewing machine and a single horizontal sewing machine. In the mechanical horizontal sewing machine, the sewing machine cylinder is directly connected to a printing machine via a gear mechanism, and the operation is performed in complete synchronization with the printing machine. The sewing machine cylinder is exchanged for each foam size.
[0003]
In addition, the single horizontal sewing machine is configured such that the sewing machine body is directly connected to the horizontal sewing machine motor and is operated independently from the printing press. In addition, operation with different cut sizes is possible with one sewing machine cylinder.
[0004]
[Problems to be solved by the invention]
Since the conventional mechanical horizontal sewing machine is directly connected to the printing press through a gear mechanism, it is necessary to change the sewing machine cylinder every time the cut size is changed, which causes a reduction in work efficiency. It was.
[0005]
In addition, since the synchronization method of the single horizontal sewing machine is synchronized with the printing press, there may be a problem in the alignment accuracy of the printed material and the horizontal perforation. That is, when the horizontal perforation is machined in synchronism with the printing speed of the printing machine when the pattern (register) deviates from the printing speed of the printing machine due to slippage of continuous paper, etc. The perforation is displaced from the pattern.
[0006]
The present invention is intended to bite in the above was considered, it can be processed next perforation at odd law specific cut size of an integral multiple of the length and the conditions of the spacing of the synchronization marks provided in the constant continuous paper interval In addition, it is an object of the present invention to provide a horizontal perforation processing method in which each horizontal perforation can be performed in registration with a printed pattern.
[0007]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the horizontal perforation processing method according to claim 1 of the present invention is arranged such that a synchronization mark is continuously provided on a continuous sheet at a constant interval in synchronization with a pattern interval printed on the continuous sheet. In addition to printing, a start mark that is a starting mark for the horizontal perforation is printed, and a plurality of perforations at intervals of a predetermined number of the synchronization marks are transferred to a single horizontal perforation controller that controls the rotation of the perforation processing device. The perforation interval setting value is set to 1 cycle, the sync mark is detected by the sync mark sensor, the start mark is detected by the start mark sensor, and the sync mark detected first after the start mark is detected As a starting point, the detection signal of the subsequent synchronization mark is input to the single horizontal sewing machine controller, and the single horizontal sewing machine controller calculates based on each input signal, Drives the perforation forming apparatus at an interval in accordance with the serial perforation interval setting value, so as to process the plurality of perforations repeated transverse perforations in continuously as one cycle was intervals for each predetermined number of the sync mark I did .
The invention according to claim 2 of the present invention is the invention according to claim 1, wherein the perforation interval setting value input to the single horizontal sewing machine controller that controls the rotation of the perforation processing device is set for each different number of synchronization marks. A plurality of perforations with a different number of synchronization marks are driven by setting the perforation of the plurality of intervals as one cycle, and driving the perforation processing apparatus at intervals according to the perforation interval setting value. The horizontal perforations were processed continuously as one cycle .
Furthermore, in the invention according to claim 3 of the present invention, in the invention according to claim 1 or 2, the synchronization mark printed at a constant interval has a mark in the mark reading width due to defective mark printing or the like. If not, create a virtual mark corrected in the system and continue driving.
[0008]
[Operation]
According to this method, the horizontal perforation is processed at an arbitrary interval on the condition that the length is an integral multiple of the interval between the synchronization marks. Each horizontal perforation is processed at a position in registration with the printed matter.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
FIG. 1 schematically shows an apparatus for carrying out the method of the present invention. In FIG. 1, 1 is a continuous paper traveling through a printing machine (not shown), 2 is a lateral direction (width direction) on the continuous paper 1. This is a horizontal perforation processing apparatus for processing horizontal perforations.
[0010]
This horizontal perforation processing device 2 is composed of a horizontal perforation cylinder 3 to which a not-shown perforation blade is fixed, and a receiving cylinder 4 in contact therewith, and both cylinders 3 and 4 have respective contact portions in the running direction of the continuous paper 1. By rotating, a horizontal perforation is processed on the continuous paper 1.
[0011]
The horizontal sewing machine cylinder 3 is driven by a motor 6 whose rotation can be controlled by an input signal from a single horizontal sewing machine controller 5, and the receiving cylinder 4 is connected to a printing machine via a gear mechanism 7. It is connected to the driving shaft 8 and rotates in synchronization with the driving shaft 8. A motor encoder 9 detects the position of the motor 6.
[0012]
A main motor 10 drives the driving shaft 8, and a driving shaft encoder 11 outputs a pulse according to the rotation of the driving shaft 8, and is connected to the driving shaft 8.
[0013]
A predetermined pattern is printed on the continuous paper 1 in the printing unit of the printing press, and at the same time as shown in FIG. A start mark 13 is printed as a mark. As shown in FIGS. 1 and 2, the marks 12 and 13 are read by a synchronization mark sensor 14 and a start mark sensor 15 arranged on the upstream side of the horizontal perforation processing apparatus 2, and the signals thereof are read. Is input to the controller 5. The synchronization mark 12 is printed at regular intervals, for example, 10 inch intervals in synchronization with the pulse.
[0014]
In this configuration, the receiving cylinder 4 of the printing press and the horizontal perforation processing apparatus 2 is operated by the main motor 10 via the driving shaft 8. The horizontal sewing machine body 3 is started to operate via the single horizontal sewing machine controller 5 in response to a start mark detection signal from the start mark sensor 15. All the rotation speeds (printing speeds) of the printing unit of the printing press are recognized by pulses from the drive shaft encoder 11. This pulse is constantly counted and monitored.
[0015]
The intervals between the mark signals output from the mark sensors 14 and 15 are converted into the number of pulses by the pulses output from the drive shaft encoder 11 at all times.
[0016]
The rotational speed of the printing press is recognized by the pulse from the driving shaft encoder 11 as described above. However, the speed of the continuous paper 1 sent by the printing press is not necessarily the driving speed due to slippage in the printing press. There may be a delay without matching the traveling speed recognized by the shaft encoder 11 due to the rotational speed of the printing press. The error with respect to the running speed of the printing press of the continuous paper 1 at this time is that the output interval of the detection signal of the synchronization mark 12 by the synchronization mark sensor 14 is converted into the number of pulses from the drive shaft encoder 11, and this converted number of pulses, It is calculated by comparing the ideal cut size with the value converted to the number of pulses.
[0017]
The installation position of the drive shaft encoder 11 is set in a place with little mechanical error due to the gear structure. The synchronization mark 12 and the start mark 13 are printed on a place where the behavior of the continuous paper 1 is small, for example, both sides.
[0018]
Next, a horizontal perforation processing method using the horizontal perforation processing apparatus 2 having the above-described configuration will be described with reference to the control system block diagram shown in FIG. 3, the same members as those shown in FIG. 1 are denoted by the same reference numerals.
[0019]
By driving the printing machine, a predetermined pattern on the continuous paper 1, and a synchronization mark 12 and a start mark 13 synchronized with the pattern are printed and run. The marks 12 and 13 are detected by the sensors 14 and 15 facing each other, and the detected pulse signals are input to the single lateral sewing machine controller 5 together with the reference pulse from the driving shaft encoder 11.
[0020]
The single horizontal perforation controller 5 receives a perforation interval setting signal from a horizontal perforation interval setting device 16 such as an operation panel. For example, as shown in FIG. 4, the perforation interval setting signal is input with a perforation interval setting value that is a pattern in which the number of synchronization marks 12 is two, three, and one in order.
[0021]
The single lateral sewing controller 5 calculates based on each input signal and outputs an optimal lateral perforation position signal to the AC servo driver 17. The AC servo driver 17 operates the motor 6 at an interval according to the perforation interval setting value based on the input signal, and the horizontal sewing drum 3 is rotated integrally with the motor 6 so that the synchronization mark 12 The horizontal perforations are provided at positions corresponding to two, three, and one, and the horizontal perforations are continuously processed repeatedly as a pattern. At this time, the motor encoder 9 detects the current position of the motor 6 and feeds it back to the AC servo driver 17.
[0022]
When making the horizontal perforation, the rotational speed of the horizontal perforation cylinder 3 must be synchronized with the printing press. Then, as shown in FIG. 5, the rotation pattern is changed from the stop state to the printing press speed after an acceleration time X, perforated over the perforation machining time Y, and then decelerated and stopped over the deceleration time X ′. Is done. The subsequent stop time Z is the perforation interval.
[0023]
After the start mark sensor 15 detects the start mark 13, the synchronization mark 12 first detected by the synchronization mark sensor 14 is set as a starting point, and the number of signals output from the mark sensor is counted each time the synchronization mark 12 is detected. Count using the program. The count program is executed by the single horizontal sewing machine controller 5. The number of mark detections counted by the counter program is the number of mark detections up to the target synchronization mark 12 input by the horizontal perforation interval setting unit 16. Further, the horizontal perforation interval setting unit 16 monitors the number of pulses at the mark interval of the synchronization mark 12 by pulse input from the drive shaft encoder 11.
[0024]
A reference pulse in which the mark interval of the synchronization mark 12 is converted into the number of pulses from the drive shaft encoder 11 (eg, when the drive shaft encoder outputs 5.5 inches and 16500 pulses per rotation, 1 inch = 3000 pulses, the mark interval is In the case of 10 inches, the reference pulse is 30000 pulses.), The mark detection interval actually output from the synchronization mark sensor 14 is converted into the number of pulses from the drive shaft encoder 11, and the difference is corrected to control. Is done. As an example, if the reference pulse = 30000 pulses and the mark interval = 29997 pulses, the mark interval (printed material) is 3 pulses shorter than the ideal size, resulting in an error and affecting the number of pulses to the target mark. The number of pulses up to is updated from time to time by correcting the number of pulses generated by the error. At this time, the mark reading width is set near the target mark reading pulse number. If there is no mark in the mark reading width due to defective mark printing, a virtual mark corrected in the system is created and the operation is continued.
[0025]
Furthermore, the number of corrections for mark reading abnormality is set, and when the reading abnormality exceeds the number of corrections, it is regarded as an input abnormality of the horizontal perforation interval, and an abnormality is displayed with an alarm and a warning light. At the same time, the printer is rapidly stopped.
[0026]
In the above embodiment, an example in which a printed mark is used as the synchronization mark 12 is shown. However, this may be anything such as a file punch hole as long as it can be read by a sensor.
[0027]
Further, in the above embodiment, the example in which the interval between the horizontal perforations takes an irregular interval within each pattern is shown. This is the same as the processing method in the conventional single horizontal perforation processing apparatus, but the horizontal perforations are equally spaced. It goes without saying that can be processed.
[0028]
【The invention's effect】
According to the present invention, an irregular cut in which a plurality of perforations are set as one cycle on the condition that the length is an integral multiple of the interval between the synchronization marks provided on a continuous sheet from the start mark detection. The horizontal perforations having a size can be repeatedly processed, and the horizontal perforations can be processed with high accuracy on the printed matter by performing each horizontal perforation in registration with the printed pattern.
[Brief description of the drawings]
FIG. 1 is a schematic configuration explanatory view showing an apparatus for carrying out the method of the present invention.
FIG. 2 is a perspective view showing a continuous sheet provided with a synchronization mark and a start mark.
FIG. 3 is a block diagram of a control system.
FIG. 4 is an explanatory diagram showing a pattern for processing a horizontal perforation.
FIG. 5 is a diagram showing a state of rotation during operation of the horizontal sewing machine cylinder.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Continuous paper, 2 ... Horizontal perforation processing apparatus, 3 ... Horizontal sewing machine drum, 4 ... Receiving cylinder, 5 ... Single horizontal sewing machine controller, 6 ... Motor, 7 ... Gear mechanism, 8 ... Driving shaft, 9 ... Motor encoder, DESCRIPTION OF SYMBOLS 10 ... Main motor, 11 ... Driving shaft encoder, 12 ... Synchronization mark, 13 ... Start mark, 14 ... Synchronization mark sensor, 15 ... Start mark sensor, 16 ... Horizontal perforation interval setting device, 17 ... Single horizontal sewing machine servo driver.

Claims (3)

A continuous mark is printed on the continuous paper at a constant interval in synchronization with the interval of the pattern printed on the continuous paper, and a start mark serving as a start mark for the horizontal perforation is printed.
To a single horizontal sewing machine controller that controls the rotation of the perforation processing device, a perforation interval setting value that sets a plurality of perforations as a cycle for each predetermined number of the synchronization marks is input.
The sync mark is detected by the sync mark sensor and the start mark is detected by the start mark sensor.
Starting from the first sync mark detected after the start mark is detected, the subsequent sync mark detection signal is input to the single horizontal sewing machine controller.
The single horizontal sewing machine controller calculates based on the input signal of this synchronization mark,
Driving the perforation processing device at intervals according to the perforation interval setting value, and repeatedly processing a plurality of perforations with a predetermined number of synchronization marks as one cycle as a cycle,
Horizontal perforation processing method characterized by the above. The perforation interval setting value input to the single horizontal perforation controller that controls the rotation of the perforation processing device,
A plurality of perforations at different intervals of the number of synchronization marks are set as one cycle, and the perforation processing apparatus is driven at intervals according to the perforation interval setting value, so that intervals at different numbers of synchronization marks are obtained. The horizontal perforation processing method according to claim 1, wherein the plurality of perforations are repeatedly processed continuously as one cycle. The synchronization mark printed at a constant interval is a virtual mark corrected in the system when the mark does not exist in the mark reading width due to defective mark printing or the like, and the operation is continued. The horizontal perforation processing method according to claim 1 or 2.

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