JPS59179346A - Paper position controlling apparatus - Google Patents

Abstract

PURPOSE:To attain to enhance work efficiency, by controlling either one of motors for adjusting the positions of a turn bar and a former by a control signal source while controlling the other motor to a direction for equalizing the change amounts in detection outputs of angle detectors. CONSTITUTION:If a tuning switch St for performing a following signal is an ON-state, the rotary angle detection and the positional display of each motor are performed. In the next step, if the switch S2 for a former 7 is turned ON, a relay CR2 is operated and the position of the former 7 is corrected while, when an OFF-state, a relay CR1 for a motor 8a is operated corresponding to the change amount with the position prior to correction in the detection output of a potentiometer 13b, which detects a rotary angle, in cooperated relation of a motor 8b. The motor 8a is controlled to a direction for equalizing the change amounts in the detection outputs of potentiometers 13a, 13b. Therefore, if the position of the former 7 is corrected, the position of a turn bar 5 is automatically corrected following this and the positions of the turn bar 5 and the former 7 are completely coincided. As mentioned above, if the positional adjustment of only one of the turn bar 5 or the former 7 is performed, the other is automatically subjected to positional adjustment and, therefore, adjusting work is performed only once and work efficiency becomes well.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a paper position control device for guiding printed paper to a predetermined position in a web rotary printing press.

[Prior art]

In general, a web-fed rotary printing press is composed of a printing machine, a paper cutting machine, and a folding machine, and the paper printed by the printing machine is fed to the folding machine via the paper cutting machine and is folded lengthwise. In this case, the paper fed to the paper cutting machine is first divided vertically into two equal parts by a slick installed in the paper cutting machine, and one of the divided papers is placed in a predetermined position by a turn bar and the other by a former. guided and delivered in a pulsatile manner. In the folding machine, the supplied paper is vertically folded from the center in the width direction using a chopper.

In recent years, there has been a demand for printed matter of various sizes, and the width of the paper is determined according to the size of the printed matter. However, since the slitter position remains unchanged, when the width of the paper changes, the paper divided into two halves will be placed in the middle in the width direction. Since the position changes, even if you guide the paper cut into two equal parts by the slitter to the folding machine in step 1 so that it is in the same position as before changing the paper width, the paper cannot be folded vertically from the center in the width direction. stomach. For this reason, in the past, the positions of the turn bar and the former were adjusted to move the sheet of paper divided into two equal parts by a slitter by a predetermined amount, so that the sheet could be vertically folded at the middle position in the width direction.

In this case, it is sufficient to move the turner and the form by the same amount, but since they must be adjusted separately, the same operation must be performed twice, resulting in poor work efficiency. For this purpose, if a motor is attached to the turnper and former and the motors are operated at the same time, only one adjustment is required, but since the motors for the turnper and former have different loads, the energization time of the motors must be the same. It was not possible to move the turnper and the former by the same amount by using the same amount.

[Object and structure of the invention]

Therefore, an object of the present invention is to provide a paper position control device that can move the turner and former by the same amount with only one adjustment operation. The first and second motors that adjust the position of the former are interlocked with first and second angle detectors that individually detect the rotation angles of these motors using electric signals and 1 to 1. one of the second motors is controlled by a control signal source, and in response to the rotation of one of the motors, the amount of change in each of the detected forces of the first and second angle detectors becomes equal; If one of the first and second motors is controlled to adjust the position of either one of the turner-straddling formers, the position of the other one is automatically adjusted accordingly.

Hereinafter, the present invention will be described in detail using drawings showing embodiments.

〔Example〕

FIG. 1 is a fI 11 side view of a paper cutting machine in which the position of the turner and former is adjusted by applying the apparatus according to the present invention. In the figure, an FC paper 1 printed by a printing machine is guided to a slitter 3 while being cooled by rollers 2a to 28, and is continuously cut into two equal parts in the longitudinal direction of the paper. Then, one of the two sheets 1a+1b of the sheets 1a is guided to the turner 5 by the roller 2v and the guide roller 4, positioned there, and supplied to the folding machine 6 located below. Among the two equal parts of paper, the other paper 1b is transferred to the former 7 by rollers 2t p 2u.
It is guided there, positioned, and supplied to the folding machine 6 below.

1 paper for these 1. , 1b, is vertically folded from the center in the width direction by a chopper (not shown) provided inside the folding machine 6.

At this time, the position of the turner 5 can be adjusted by a motor 8a, and the former T can be adjusted by a motor 8b, and each time sheets 1 of different widths are used up, their positions are adjusted by a control section (not shown). It has become so. The motor 8ap8b is installed as shown in the plan view shown in Fig. 2, and when the motor 8a operates, the shaft 9a
rotates, and the rotation causes bevel gear 10a y 101
) to the axes 9b p 9c. axis 9b,
, 9c Id is screwed together with the boss 11 fixed to the turner 5. For this reason, axis 9h.

9o rotates, the turner 5 moves in the XX direction shown in FIG. The rotation of the motor 8a is further transmitted by the gear 12 to a potentiometer 13a, which is a first angle detector, and the potentiometer 13a outputs the rotation angle of the motor 8a as an electric signal and L-. The motor 8b has a potentiometer (not shown) which is a second angle detector inside it. Furthermore, the arm 14 is moved in a linear motion in the X-X direction as shown in FIG. 2 by the rotational movement of the motor 8b, and the former 7 is moved in the X-X direction by the rotation of the motor 8b. At the same time, the rotation angle of the motor 8b is output as an electrical signal from a potentiometer that is linked to the motor 8b.

Then, after passing through the guide roller 4 from top to bottom following the path of the dashed-dotted line shown in FIG. It passes through the turner 5 from bottom to top, where its direction is changed by 90 degrees, and is further guided downward (towards the back of the drawing) by side rollers 15. Then, the paper 1b is guided downward by the former 7 as shown by the two-dot chain line.

FIG. 3 is a block diagram of the device according to the present invention, which includes a processor CPU', r such as a re-microprocessor, a fixed memory ROM, a variable memory TIAM, and input/output circuits I101 to I104. , these are connected by data bus DB and address bus AB.1. The control unit is comprised of four controllers, and the processor CPU executes control operations while accessing predetermined data to the variable memory RAM based on instructions stored in the fixed memory IJROM.

Further, potentiometers 13a + 13b l are connected to the motors 8a and 8b and detect their rotation angles.
)' is provided as an angle detector, and these detection forces are sequentially and repeatedly selected by a selector SEL, and are also connected to an analog-to-digital converter (hereinafter referred to as ADC) A/D.
D, where it is converted into, for example, a 12-bit digital signal, and is sent to the intertwice l5O1'! z
A,
1) The status signals ST of C-A, , 'D are also applied to the input/output circuit 101 via the interface 15Ch'r.

Note that the operation of the fi-D C-A/D is based on the input/output circuit I1.
The operation of the selector SEL is controlled by the control signal CT applied from the input/output circuit 101 through the interface lSO4''f: There is a lot of control.

On the other hand, a switch St+82 for adjusting the position corresponding to the motors 8a and 81) is provided as a control signal source, and a tuning switch St used for performing a follow-up signal is also provided. Output circuit I 10
l! The decoder DEC decodes the designated signal AP given from the decoder DEC, and sequentially and repeatedly presses the finger λ on the signal inputted through the interface l5O5. fsl
For example, it becomes an 8-bit digital number 43 through the input/output circuit I/'Of1.

Note that if these conditions change, the processor CP
(i:';"; is given to the interrupt terminal INT of U, and data from interface l5O6 is sent to all processors CPU
This is something that is taken care of by interrupt processing.

In addition, a drive signal DR is sent from the input/output circuit T10θ, and is sent to the motors 8a and 8 via the driver DRf.
In addition to driving the relays CR1 and CRz to be controlled individually, the indicators DPI and DPs, such as numeric displays corresponding to the motors 8a and 6b, display information from the input/output circuit 104. The rotation angle of each motor 8a+8b, which is indicated by the detected force of the potentiometers 13a and 13b, is displayed individually.

Figure g4 is a flowchart showing the control groove in the control section described above. In response to ``Power ON'', the initial state is set by ``1 Initial Set'' (after 7, ``All Units Set'' is set).
Due to over limit check, motor 8 a +
Check the status of the limit switches installed at every 8 b to detect the maximum rotation angle. When either the switch Slt for adjusting the position of the former 7 bar 5 or the switch S2 for adjusting the position of the former 7 is turned on,
``Switch input detection''), the status of switches Sl + St is captured, and when these are turned on, ``corresponding relay drive'' is performed. Take action on what you want to do,
Manually adjust the position of the turner 5 or former 7.

Next, the output of the ADC-A/D is sequentially captured by the one-rotation angle detection, and the display D is displayed according to these data.
A display signal is sent to PI and DP2, and 1, 'position display' is performed.

After processing '=, enter all the status of switch St, and input 'same lesson?' If it is Y (YES) that the switch St is on, it detects the angle of one rotation and displays the 'position' in the same way as described above, and then turns the former input OFF? Determine whether the switch Sg is on or off, and if N(1-To) is in the on state,
“Forma relay movement〃V, relay CIRz
′! i-Move, Forma 7 position 2? I will fix it, but
In the OFF state, Y'''C performs a 5-data dance according to the change in the detection force of the potentiometer 13b that is linked to the motor 8b, and accordingly the relay for When driving, the relay CR1 for the motor 8a is activated so that the amount of change in the detected force of the potentiometer 13a interlocked with the motor 8a is equal to the amount of change in the detected force of the potentiometer 13b interlocked with the motor 8b. The motor 8a' is controlled in the direction of
The above operations are repeated until \'synchronization complete'' becomes Y.

Therefore, if the position of the former 7 is corrected in response to turning on the switch S2, the position of the turn bar 5 will automatically be corrected according to this, and the position M between the turn bar 5 and the former 7 will be completely adjusted. matches.

However, it is also possible to first correct the turn par 5th place h, and follow this and correct the former 70th place firk (l).

〔Effect of the invention〕

As explained above, the paper positioning control according to this 8JIVC takes out the rotation angle of the motor for position adjustment of the turner and former as a frost, and when either the turn bar or the force is manually adjusted, this An electric signal is output from an angle detector interlocked with the motor that operates when the motor is in operation. If you adjust the position of only one side of the turnper straddle former, the other side (() will be automatically adjusted by the same amount, so the adjustment work only needs to be done once, which has the effect of improving work efficiency. .

[Brief explanation of drawings]

Fig. 1 is a side view of a paper cutting machine constructed by applying the device of the present invention 17, Fig. 2 is a plan view, Fig. 3 is a block diagram of the paper position control device, and Fig. 4 is its flowchart 1. be. 11a+'b...Paper, 3...-Slitter, 5-
Reference...Turn bar, 6...Folding, 7...Working/former, 8a, 3b-@@11 Motor, 13a, '1'
3'b... Potentiometer.

Claims (1)

[Claims] a 10th motor that corrects the position of the turn bar, a 20th motor that completely corrects the former position, and a 1st motor that is linked to each of the motors and individually detects the rotation angle as an electric signal.
and a second angle detector; a control signal source for controlling one of the first and second motors; and a control section that controls the other of the first and second motors in a direction such that the amount of change in each detected force of the angle detector becomes equal.