JPS59218899A - Ink detector in rotary press - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

The present invention relates to an ink detection device for a rotary printing press that detects the amount of ink on the outer circumferential surface of a rotating printing drum. Conventionally, in a rotary printing press that prints by transmitting ink supplied to the outer circumferential surface of a rotating printing drum through the printing part of the printing base paper, °C is a constant amount of printing paper. A fixed amount of ink is refilled when the number of sheets is increased to 1 h, or ink is refilled manually by checking the state of one print during printing. By the way, as mentioned above, replenishing ink is troublesome if you replenish the ink according to the number of sheets printed or manually replenish the ink by checking the printing condition after printing.・Additionally, there was a drawback that the printing condition was not constant. The present invention has been made to solve the drawbacks mentioned in (-) above, and the first aspect of the present invention is to bring a rotating body into pressure contact with a 1 m outer circumference of a rotating drum for printing, and to adjust the number of rotations of this rotating body and the printing speed. By detecting the slip of the rotating body from the ratio of the rotational speed of the rotating drum for printing, the larger the ink layer on the surface of the rotating printing tram, the slip of the rotating body; , and replenish the printing rotary drum with the necessary amount of ink, regardless of the printed area of the printed matter or the amount of ink used π. The present invention will be specifically explained below with reference to 1. and the attached drawings fJ. In FIG. 1, ■ is a rotating drum for printing on the second side; 2 is a rotating drum for printing on the upper side; 3 is a screen stretched between the rotating drum 1 for printing on the upper side and the rotating drum 2 for printing on the first side; Reference numeral 4 denotes a motor that drives the lower printing rotary drum 2. 1 - The rotating drum 2 for printing and the motor 4 are attached to the shaft of the printing 111 rotating drum 2, and the output shaft 7 of the motor 4 is attached to the output shaft 7 of the motor 4. It is connected to the companion car by a belt 9 stretched between the drive pulley 8 and the output shaft 7 of the motor 4 or the arrow A
When rotated in the rotation direction r t , the lower printing rotary drum 2 rotates in the direction of the arrow A r 2 . On the outer periphery of the rotating drum 2, an ink distributor 10 is provided inside the screen 3. -1- The ink distributor 10 has a length equal to the length of the upper printing rotating drum 2. From ink duzer 12 to ink pop 11 to 1
．． '1 Send ice to 10 Bainki Taste Replay users

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It is supplied to the outer peripheral surface of the ram 2. The ink applied to the outer circumferential surface of the lower printing rotary drum 2 as described in Section 2 is applied to the outer circumferential surface of the lower printing rotary drum 2 by the mixing roller 13.
Rotating drum 2 for printing on the 1st side and J for printing on the 2nd side Q
It is spread on the outer peripheral surface of the drum 1 to a uniform thickness. That is, the roller 13 for recording is supported by the shaft 14 inside the screen 3 so as to be in pressure contact with the outer peripheral surfaces of the rotary drum 2 and the rotary drum I for printing on the first side. The ink supplied to the outer circumferential surface of the tram 2 is 2-kneading r-nola I 3.
This ink is further applied to the outer circumferential surface of the upper printing rotary drum l to a uniform thickness. 1-side printing IN rotation j1, tram 1 and lower printing rotation 1/' ram 2 (this ink is supplied to the screen 3
and the printing paper pasted on the -73k knee) 4B portion is transparent (-1 sheet from the unillustrated paper feed section of the rotary printing machine -) The printing paper fed is on the bottom side When passing between the printing rotary drum 2 and a pressure roller (see Figure 4) provided at the f section thereof, the printing paper is stamped with a stamp of interest 1. In the present invention, for example, is a printing machine having the above-mentioned configuration; in a printing press, inside the screen 3, there is a -1- side printing rotary jl, a rotating part that rotates in pressure contact with the outer peripheral surfaces of the drum 1 and the lower printing rotary drum 2; An ink detection roller 15 is provided as a body, and a first
A speed generator J8 as a rotational speed detector is connected to the shaft 5 of the Jk drum 2 for lower printing.
Also, a speed generator 20 as a second rotational speed detector is connected via the universal joint 19, and the outputs of these speed generators 18° and 20 are connected! J is compared using the circuit shown in FIG. 2, 4 lips (1;
Ink b: 4 is detected on the L-side printing rotating drum 21- and the F-side printing rotating drum 21-. That is, the output E2 of the speed generator 18, which outputs the rotation speed of the ink detection roller 15 at 161, is controlled by the semi-fixed variable resistor V R6 as shown in FIG. Print 11 times, west longitude of tram 2)
1/I], the non-inverting input terminal of the comparator 2T and the inverse 111jC input terminal of the comparator 22 are connected manually. 1-resistor\'1 (o is the diameter of the ink detection roller 15 or the upper printing amount 11.J, as seen above.
, 'Il of drum 1 or upper printing rotating drum 2
Since the l diameter is l/'11, when the slip of the ink detection roller 15 is zero, the outputs 1 and 2 of the speed generator ■8 are 1 times the output 1 and □ of the speed generator 20. on 19
It is no good to compensate for it so that it becomes worse. On the other hand, between the output terminal of the 2-speed IW generator 20 and the ground, there are resistors i;
2 is connected. ]-I+J resistor V R and ~'1 (2 is for setting the reference level of comparators 21 and 22, respectively, and -
C11lj' 1 The slider of the flu resistor \'1ζ1 is connected to the non-inverting input terminal r- of the comparator 21, and the slider of another variable resistor V1 (2's sliding r- is connected to the inverting input terminal of the comparator 22 The output of the comparator 21 is input to the set terminal of the RS flip-flop 23, and the output of the second comparator 22 is input to the reset terminal of the RS flip-flop 23. The second RS flip-flop 23 detects ink when the ink on the -I- side printing rotating drum 1 and the five-printing rotating drum 2 becomes low so that the RS flip-flop 23 detects the ink. ■
When the number of rotations of the ink detection roller 15 becomes high, it is set by the comparator 21, and conversely, when the number of rotations of the ink detection roller 15 is low, it is reset from the comparator 22. Reset by a signal. 1-The Q output of the RS flip-flop 24 has a power increase of 11
” input to the power amplifier 241 and output from the power amplifier 24,
The solenoid 25 shown in FIG. 1 is activated. - The solenoid 25 is connected to the fulcrum 2 as shown in FIG.
By rotating the trigger plate 27 rotatably supported by the trigger plate 27, the hook-shaped portion 27H1 provided at one end of the trigger plate 27 and the buckling of the spring that has been connected to the shaft 5 of the upper printing rotary drum 2 are prevented. Engagement end 28 provided in the well-known spring clutch 28 utilized
When the engagement end 28a of the spring clutch 280) is disengaged from the hook-shaped portion 27a of the trigger plate 27, the spring clutch 280) A gear 29 provided for the rig function co-rotates with the shaft 5. 1- The gear 29 is engaged with another gear 30, and a cam 31 is inserted into the gear 30. The cam 3 is fitted into a notch 33a provided at one end of the drive plate 33 of the ink pump 11, which is swingably provided on the support shaft 32, and the cam 31 is driven by the rotation of the gear 30. The lot 11 of the ink pump 11 connected to the other end by swinging the plate 33; the turtle? 1: Make a return exercise. In a rotary printing press, the ink detection device is installed as shown in L (1
To correct the deviation from '4', ink can be replenished in the - side printing rotary drum 1, the D side printing cycle +117, and the tram 2 as follows. Now, the motor 4 of the rotary printing press in FIG.
r 3 , and as a result, the kneading roller 13 and the ink detection roller 15 are rotated at the same time as the arrow A.
Assume that it is rotating in the directions of r4 and Ar5. On the other hand, the +'iJ resistors vR1 and vl(2
will be described later from each sliding r・, so for example, (0,
85X I! :1) and (0,65XE1) are adjusted so that they are output, respectively. In the state described in I-, when the number of ink pieces on the 1st side printing rotary drum 1 and the lower side printing rotary drum 2 decreases, the slip f) of the ink detection roller 15 becomes small and the speed generator 18 Output E increases by 2 months. 1- output E,) rises to (I'12 /n)
''-, (0°85
The Q output of flip-flop 230 also becomes high level. Therefore, the solenoid 25 is energized by the current from the power intensifier 24 and rotates the trigger plate 27 in FIG.
disengage with. 1-, when the hook-shaped portion 27a of the trigger plate 27 and the engagement end 28a of the spring clutch 28 are disengaged, the shaft 5 and the gear 29 are coupled, and the shaft 5 is transmitted to the cam 31 via gears 29 and 30. The drive plate 33 rotates f;1. by the rotation of the L cam 31. move,
The rod lla of the ink pump 11 is reciprocated, and the ink pump 11 feeds the ink in the ink tube 12 onto the lower printing rotating drum 2 via the ink taste distributor 10. The ink fed onto the lower printing rotary drum 2 as described in 1- is spread by the kneading roller 13 and
It is also provided on the - side printing rotary drum 1. When more ink is deposited on the 1-side printing rotating drum 1 and the lower printing rotating drum 21- and the ink layer becomes larger, the amount of slip of the detection roller 15 increases, and the output E2 of the speed generator 18 decreases. I will do it. ”2 Output 1・-2 or low, (■!, 2/ ”)
<(0,65xE,), the comparator 22 in FIG.
The output of becomes high level, and 1 (S flip-flop 2
3 is reset, its q output becomes a low level, and the solenoid 25 is deenergized. When the solenoid 25 is deenergized, the hook-shaped portion 27 of the trigger plate 27 is again engaged with the engaging end 28a of the spring clutch 28, and the spring clutch 28 is connected to the shirt l-5 and the gear 2.
The connection with the ink pump 9 is released and the drive of the ink pump 11 is stopped. By comparing the number of rotations of the ink detection roller 15 and the number of rotations of the lower printing rotating drum 2 as shown in ``-1-1,"
The upper ink sheath is controlled by the slip amount of the ink detection roller 15. By the way, the ink detection roller 1 with respect to the amount of ink on the rotary drum 1 for side printing and the rotary drum 2 for side printing
The amount of slip in No. 5 is determined by: ■ surface condition of the J-side printing rotating drum 1, lower printing rotating drum 2, and the ink detection roller 15, ■ rough stone condition of the ink detection roller 15, and ■ ink detection roller 1.
It varies depending on the friction of the bearings etc. of 5 and the resistance due to the speed generator] 8, the viscosity of the inlet, and the number of revolutions of the rotary printing drum 2 on the side 7, and cannot be determined uniquely. However, the above items ① to ② are within a certain practical range, and regarding ③, the variable range of the rotation speed of the motor 4 is about 1' = 3 to l: 4, which is -1 - notation. Even if the slip amount fluctuation factor of ■ or ■ is taken into account, the present invention can sufficiently determine whether or not ink replenishment is necessary.
f ability. By the way, about 1oor+month 11 to 130 orpm
As shown in Figure 3, for the rotation of approximately 2 volts to 1 volt
Using an AC speed generator (manufactured by Oriental Motor Co., Ltd.) that can vary up to 6 volts, the amount of ink supplied to the lower printing rotary drum 2 is varied from zero to 26 grams. The rotation speed of the shaft 5 is 35r
When the output pressure of the AC speed generator was measured in the case of 125 rpm (p+n, 75 rl)m, the results shown in Table 1 below were obtained. (Margin below) Table 1: In addition, the measurement results in Table 1 are plotted by taking the ink on the horizontal axis and the output of the AC speed generator on the vertical axis. The rotation speed of the shaft 5 of 2 is 3
If the rotation speed of the shaft 5 is 75rpln, the curve 11 is used.If the rotation speed of the shaft 5 is 125rl, it is the curve l! 2 was obtained. ]- From Figure 4, when the ink reserve is, for example, 6 grams, the output of the AC speed generator is for ink,
It can be seen that the output is 80% to 90% of the output of the AC speed generator when is zero. Further, the output of the AC speed generator when the amount of ink is, for example, 14 grams is in any case 60 to 70 percent of the output of the AC speed generator when the amount of ink is zero. Therefore, the output of the slider of variable resistor VR□ in Fig. 2 is (
0.8~0.9)xE□.
While adjusting R□, another variable resistor ■I (2
If the variable resistor V R2 is adjusted so that the output of the slider becomes (0.6 to 0.7), it is irrelevant to the factors from ■ to ■ mentioned above. , for example, by adjusting the ink iτt of the upper printing rotary drum 1 and the first side printing rotary drum 2 within the range of 6 grams to 12 grams, θ). In the above description, basic embodiments of the present invention have been described, but the present invention is not limited to the embodiments described below.
The speed generator 18 may also be used as the speed generator 18.
and 20 may be of either AC output or I)C output, or may be of any type with a small load, such as a photoelectric type. Furthermore, the invention is also applicable to rotary printing presses with one rotating printing drum. -1 As is clear from the detailed description, the present invention provides a rotary printing press in which the amount of slip of the rotating body pressed against the printing rotating drum changes depending on the thickness of the ink on the surface of the printing rotating drum. Since the ink pump detects ink 4 and M+ by using the
Print area and ino; 1゛-use 1? It is possible to always perform good printing regardless of i.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a rotary printing press equipped with an ink detection device according to the present invention, FIG. 2 is a block diagram of an embodiment of the ink detection device according to the present invention, and FIG. 3 is an output characteristic of a speed generator. FIG. 4 is an output characteristic diagram of the speed generator for ink 11:. ■...Rotating drum for 1- side printing, 2...D side printing 1
11th Mudram, l... Ink pump, 15...
- Ink detection roller, 1.8, 20... speed generator, 21.22... comparator. 1, 'I Total of 10 people Duplo Seiko Co., Ltd. Agent J [Midori Aoyama Ao et al. 2B - Written amendment of procedure 1 Display of case 1982 Patent Application No. 69620 2 Name of invention Rotary printing machine Relationship with the case of the person who corrected the ink amount detection device 3 in 2013 Patent applicant address 353 Oaza Kamidai, Kokawa-cho, Naga-gun, Wakayama Prefecture Name Shigeaki Shima 4 representative of Duplo Seiko Co., Ltd. Details of the agent 11: 1. Name of the invention Ink amount detection device 2 that can be used for rotary printing
The ink on the outer circumferential surface of the printing base paper is transferred to the rotary printing cost for transparent printing.
An ink amount detection device that can be used to measure the amount of ink is used to measure the ink layer on the outer circumferential surface of the rotating drum for printing.
The first 4i7 number detector outputs an output that is 1β to the rotational speed of the rotating body, and the rotational speed of the H-transformer 18' ram for printing is 1). Output th-intermediate-1
-ru 71 (; / rotation speed detector, -1, foot temperature 1 output of the rotation speed detector and comparison of the output of the rotation speed detector 44iii 几, -ji! I1 .:,!r)J-
cl Dust Mosquito J1 Face Re-I - Exceeding J1 plant in one range set - % - Hansha Length - 17th issue - I. Rotary printing characterized by -j,; -11,i;, 1) t The present invention detects the amount of ink on the outer peripheral surface of a rotating printing drum4.
Conventionally, the ink supplied to the outer circumferential surface of the rotary printing drum by the rotation of the printing drum is passed through the printed part of the printing base paper. ′ [In a rotary printing press that performs printing, the number of printed matter reaches a certain amount.] Fixed at 1j: 1:
, or manually replenish the ink at any time by checking the printing condition during printing. Tokoro C゛, 1. As mentioned above, if you compensate the ink according to the number of printed sheets or manually compensate the ink by checking the condition of the printing after printing, the condition of the printing will not be constant. However, the disadvantage was that it was troublesome to replenish the ink. Therefore, in order to detect the amount of ink on the surface of a rotary IS ram for printing, an ink II central discharge device was proposed in Japanese Patent No. 1, R Komei 56-4]436. The device of the present invention includes an ink transfer roller and an ink amount control element that controls the amount of ink supplied to its outer peripheral surface, and forms an ink reservoir on the ink biting side between the two. Place the pivotable lever on the top of the screen, move up to the rotating flow of ink in the ink tank, and operate a micro switch, etc. via the lever, and use this (see ↓7) to adjust the amount of ink. According to this well-known 11."1", when the ink A in the ink pool reaches 1.jt, the lever detects this, and ink is injected again until the ink reaches 11. Since the ink 1a is supplemented with light, the above-mentioned drawbacks are improved and the printing condition becomes almost constant.However, in this known device, the ink 1a
The detection is not carried out directly on the outer peripheral surface of the printing rotary drum l, but the ink is supplied to the ink transfer roller to form an ink puddle, and the ebb and flow of the ink puddle is detected via a lever. 4-, and it indirectly detects the amount of ink, so to speak, and Tenkawa J-, i+'i degree was "inferior and extremely unsatisfactory.",1. This known device 6 requires the use of highly viscous ink called hard kneading in order to create an ink reservoir, and the second known device cannot handle ink with low viscosity. Applied only to limited equipment111
There wasn't. The present invention was made in order to eliminate the shortcomings of the coming technology. The optimum range of ink amount to be supplied to the outer circumferential surface V of I, is set to JZ, and if the ink amount on the outer circumferential surface exceeds the - range, the corresponding ink i
I: To provide an ink amount detection device that outputs a signal. Furthermore, a second object of the present invention is to provide an ink electric detection device that detects ink BH directly on the outer circumferential surface of a rotating printing drum. In order to achieve the objective, the ink amount detection device of the present invention includes a rotating body that releases pressure from the outer circumferential surface of a rotating printing drum through an ink layer and rotates to follow the ink layer, and a rotational speed of the rotating body. a first rotation speed detector that outputs an output corresponding to the rotation speed of the printing rotating drum; a 21111 rotation speed detector that outputs an output corresponding to the rotation speed of the printing rotating drum; and the output of the first rotation speed detector and a second rotation speed. A comparator circuit is installed to compare the outputs of the detectors, and when the comparison value of both outputs exceeds a value within the range set by 1'-1, a corresponding input A quantity signal is output. 1.1 signs and 1-
Ru. DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described in detail with reference to the drawings. First, referring to FIG. 1, an example of the cost of rotary printing for carrying out the present invention in an appropriate month will be briefly explained. 1 is a rotating drum for printing on the 1st side, 2 is a rotating drum for printing on the lower side l1, There is a screen stretched between the rotary drum 1 for printing on the second side and the rotary drum 2 for printing on the double side. Note 1: The rotating drum 2 for printing on the '' side and the motor 1 are J+y on the shaft of the rotating drum 2 for printing under the
1) They are mutually coupled by (the belt 1 stretched between the J-digit pulley 6 and the drive pulley 8 installed on the output shaft 7 of the second motor 1), and When the output shaft 7 rotates in the direction of the arrow Arl, the rotating drum 1.2 for printing on the 1st and 2nd sides rotates in the direction of the arrow l\[2. An ink distributor 1 () is provided on the outer periphery of the screen 2. The ink distributor 10 has a length 1. It is white. From Inn A Nayu 712, ink pump 11 January -
The ink supplied to the ink distributor 10 is discharged through an ink discharge hole (not shown) provided in each ink distributor 10 in the axial direction of the ink distributor 10.
” is supplied onto the outer circumferential surface of the lower printing rotating drum 2. Ink is supplied from the ink tributary 10 onto the outer circumferential surface of the lower printing rotary tram 2 by energizing the solenoid 25. 25 is pushed r;I, the trigger plate 27 rotatably supported on the fulcrum 2 is rotated, and the hook-shaped portion 27a provided at one end of the trigger plate 27 and the [·° side printing] are rotated. The first system of the spring clutch 28 is released from the engagement end 28a of the well-known spring clutch 28, which utilizes the buckling of the springs attached to the shaft 5 of the rotary drum 2. 1-Mating end a and hook-shaped part 2 of the trigger 27
7a (When removed, the gear 21J rotates with the shaft 5), It becomes two. - The gear 253 is engaged with another gear 3() or 111, and a cam 31 is mounted on the gear 3() or 111. The cam 31 is fitted into the notch gate 3:3a provided at the - end of the drive plate 33 supported by the swinger 71 on the support shaft 32, and the gear marked with -! (By the rotation of step 1, the cam 31 of 1) swings the drive plate 3;
Port 11a of the ink pump 11 connected to its north end
make a reciprocating motion. Then, the ink cylinder IJ is activated, and ink is supplied to the outer circumferential surface of the rotary drum for printing on the J side. Outside Ji of 2
The ink supplied onto the upper printing drums 2 and 1-
On the outer peripheral surface of the side printing rotary drum 1, the paper is spread to a uniform thickness E. . That is, the recording roller 13 is inside the screen 3. .
:? The ink supplied to the outer periphery 1- of ``2 feet, 1ii
The ink is deposited on the outer circumference of the reroller 1: (11), and this ink is further uniformly applied to the outer circumference of the upper printing rotating drum 1 (16, 115). '1 side printing rotary drum 1 and 1.
The ink supplied to the outer circumferential surface of the rotary drum 2 for printing on the side is printed 18; The printing paper, which is spread out and fed one by one from a paper feed section (not shown) for rotary printing, is fed through a lower printing rotary drum 11 and a pressure roll (not shown) installed in the lower printing rotary drum 11. .')
When passing through the printing base paper, it passes through the printed portion of the printing base paper and adheres to the printing paper, where printing is performed. . The main feature of the present invention is, for example, in a rotary printing machine 11 having a bipedal configuration, inside the screen 1, there is a rotary drum 1 for upper printing and a rotary drum 1 for lower printing. rotate)·
A layer of ink is emitted and pressed against the outer peripheral surface of the ram 2! if
! Ink number as a rotating rotating body) detection U-ra 113
A shaft 11j of the ink amount detection roller 15 is provided.
, through Univer→J joint 17, ′(,)(
Speed power generation as S1 rotation speed detector (; Sentence 13:
;, while doing so, ”-shaft of the lower printing rotating drum 2! 3, universal noyoin l-, +9, f
,, l, (752 speed generator Ison 0 as a rotation speed detector;
, 2f) are compared with the comparison circuits C and C shown in Fig. 2, and the following rotation speed of f and mouse detection low 15 is determined by the amount of ink present on the outer periphery of both drums. Taking advantage of the change in response to cause slimp, this: 1. From the change in output of filtration speed power generation 1jHji to ink 11),]
11. and from this result 'two side sign,
The ink 1it on the outer periphery of the printing drum 1 and the F-side printing rotary drums 1 and 2 is detected in contact with 1f1. In this case, the output E2 of the rotation speed of the ink amount detection roller 15 detected [quick power generation t: alternating] f3 is as shown in FIG.
) is a 1-speed variable resistor designed by Shizuo. Accordingly, (diameter of ink 11j detection roller 15/lower printing rotating drum l,
After attenuation by 1/11 (diameter of the capacitor), the non-inverting input terminal r of the comparator 21 and the inverting input terminal r of the comparator 22 are connected manually. iiJ variable resistor\1<,, is ink amount detection roller 15
The diameter of the ink amount detection roller 15 is 1/11 of the diameter of the upper printing rotating drum 2.
When the slip is zero with respect to the outer circumferential surface and the following rotation occurs, rapid power generation ti! The purpose is to compensate the output E2 of 18 so that it is equal to the output E2 of 20. An ink amount signal is output from a comparison circuit between the output terminal of the speed generator ti12o and the ground.
In order to set January to JZ, each town resistor is set to 1.
and 8°1<, are connected. Above variable resistor＼
"R" and "\" are the comparators 21 and J in the comparator circuit, respectively.
, for setting the base thread level of bottle 2,
The slider of the single variable resistor VR, is connected to the inverting input terminal of the comparator 21, and the slider of the second +1 variable resistor The output of the L comparator 21 is the RS flip-flop 7゛23.
At the set end of 't', also one of the above comparators 22
The output is I< 87 lip 70 tip 23 glue 7 tip end -
Each child has their own help. ”-The RS flip 70 knob 23 is as described below.
The amount of ink on the outer peripheral surface of the rotating drum 1 for printing on the 1-side decreases and the slippage becomes smaller, so that the ink 1 is removed.Detection roller 1
When the rotation speed of 5 becomes high and the output fires, IL is set by the set signal from the comparator 21. Conversely, when the amount of ink in 1. outside and 2. increases and the slip HIH also increases, the ink amount is detected. As the rotational speed of the roller 15 decreases by 1, the output also decreases, and is reset by the slope signal from the comparator 2. The Q output of the RS flip 70/amp 23 is increased in power as an ink amount signal from the comparator circuit. l'25 is energized. Next, the ink i; of the present invention, which is configured as below), is adjusted to within the optimum range by using a rotary printing machine (J, -) of the present invention, which includes the ink jij and the detection device ell+. About Ruka. ′? , ((Rotary printing 1 incorporating the apparatus of the present invention as shown in Fig. - side printing rotating drum 1 or each (mark l\1 and)\r,
It rotates in the direction of
and 'ink 1, :detection roller 1j) are people arrow Ji
It is assumed that Ar5 is rotating in the direction of Ar5. -・Power, variable resistor \7R in the comparison circuit in Figure 2. As will be explained later in detail, the first row of the h sliders in ``(1,:i 5 xrgl) and (0,65X1:,) are respectively It shall be adjusted so that
When the amount of ink on the outer circumferential surface of the printing rotary drums l and 2 decreases, the slip I11 of the ink amount detection roller 15 becomes smaller, and the speed generation (time) i3 is increased by 1 - 1. Output [:', 2 or 1, (1・,', /'+
1)・((), 鵠・x
7p2: (Q170,000 is at high level 1), and is output as an ink amount 4 foot signal to the power booster 2.1. For this reason, the current from the power intensifier 24 acts on the lithium 1//ide 25 f. Release the engagement with the end 28a using the spring clamp 7 and the spring clamp 2.
When the engagement with the engagement end 23a of the spring clutch 28 is separated by 11, the gear 21J is connected to the gear 21J.
, the rotation of the shaft 5 is caused by the cam j) via the gears 29+30.
I can talk about 11 things. 1- The rotation of the cam j (1 causes the drive plate 3 to swing;
Reciprocate the ingi bomb 11's roll'l]a W, 1,
The ink cartridge 11 transfers the ink A in the ink tube 12 to the side 11 through the ink disk)
J printing cycle Il = 1-Feed onto the outer peripheral surface of the ram 2. 1. The ink fed to the outer circumferential surface of the lower printing rotary drum 2 is passed through the inlet 13 and 46,
The outer circumferential surface 1 of the rotating drum j for printing on the side
．． You can also get into it. After this, ink is applied to the outer circumferential surface of the drum 2 on the second side printing rotary drum 1 and the side stamp A1:1 group Jll-11, and the thickness of the ink layer on the two-sided circumferential surface is increased. When the pressure decreases, the slip chamber of the ink amount detection roller 15 increases, and the output of the speed generation section 18 decreases. - In the month of distribution, is low, (F, /n) <(f'l,
65
is reset, its Q output becomes low (Loud) level, and the ink overfire m, 7j is reset, and its Q output becomes low (Loud) level.
output to power multiplier 2.・When the current of 1 is cut off, the current of 1 is deenergized. ” When the trigger 7.1 is deenergized, the hook-shaped portion 2° a of the trigger prong 27 engages the engaging end 2 of the spring clutch 2;
3) The spring clutch is engaged with a, and the spring clutch shown in - releases the connection with the phase, 71, and 5 gears 2':j, and the connection 1
1! , the drive of the ink pump 11 is stopped, and the supply pump 11 of the ink A is completely turned off. Below 11. As explained, in the present invention, both 1 and '
The amount of slip of the detection roller 15 changes according to the amount of ink on the outer circumferential surface. Compared to the ink l117 or "
When the set range is exceeded, a concentric ink drop signal is emitted.
-ru ink 111. The slip amount of the detection roller 15 is t
j) -1- side printing rotating drum], surface condition of lower printing rotating drum 2 and ink amount detection roller 15, L(>) pressure bonding condition of ink amount detection roller 15, δ
- Ink amount detection a-ra 1j') 1? , Resistance due to friction and speed generation area 1;; ・4.・ Ink drying up; However, it cannot be determined uniquely. However, from (↓) in J-, small falls within a certain range that is determined by the equipment and usage A in practical terms.
The variation range is about 1:3 to 1:4. Therefore, 1. Even if each 7T factor that varies the slip amount between +31 and above is included in the consideration 18:, according to the present invention, the ink 11: is checked so that it is within the optimal range set by jZ. That is quite possible. By the way, about 1 (l U rrun to 1300 r
The rotation speed of pa+ is 1=+hip 1n; (as shown in the figure,
An AC speed generator (manufactured by Oriental Motor Co., Ltd., number 11 as speed generator 18 in Figure 1) whose output varies from about 2 volts to lti Port main, and ink ζj supplied to this rotary printing press from 0 to 26 The number of revolutions of the shaft 5 of the lower printing rotary drum 2 is 35 r.
lon, "75 rlnn and] 25 nun's:'rJjn'ln," When the output voltage of the AC speed generator was measured, the results were as shown in Table 1 below. : (17, 1 (hereinafter referred to as gold and white) Table 1 onwards) - Plot the ink amount on the horizontal axis and the output of speed generation (on the vertical axis) at 7\. As shown in Figure 1, if the rotation speed of the shaft 5 of the lower printing rotary dome 1.2 is 35 strokes I11, then the curve l°1. In the case of 1, the curve (11 is
Also, the number of revolutions of the shaft 5 in 1.1 is 12131'1lI
11, a curve c2 is obtained. In the case of rotary printing illustrated in Figure 1, when using B/1 grade base paper with a normal printed area, the optimum range of ink penetration is approximately 6 grams to 1 gram. ing,. 1, Figure 11, the amount of ink, for example, A in grams.
At any rotation speed, the output of C speed power generation is 80% to 1% of the output of AC speed power generation when the amount of ink is zero. Also, if the amount of ink is The output of the ＼C speed generator when the load is 12 grams is ljO to 7() of the output of the AC speed generator when the ink flow is zero, at any rotation speed.
It is a percentage. Therefore, the output of the slider of the variable resistor VR in Fig. 2 is (
(, 1, rf = 0, ri) The output of the slider of the current resistor ＼'R2 is one force to adjust the variable resistor VR described in 1 so that (+, 1.6 to (', 1, 7) First, in the case of the rotary printing process illustrated in FIG.
When the set range is exceeded, a corresponding ink amount signal is output, and the ink replenishing device is activated during printing. If the structure of rotary printing is different from that shown in Figure 1, or if ink with extremely high viscosity is used, the range of optimal ink V will naturally change, and this will cause
For example, (+1.i) ~ (,l,':))
Although the values of ×1Σ5 etc. change, even if t;
The present invention can be used as is by simply re-adjusting the position of the mover.
Can be widely applied. In the above description, 11 embodiments of the present invention have been described, but the present invention is not limited to the embodiments described in 1-1. p detection roller 1!3 and kneading roller 13 for j14 ゛1-↓-)
;, 几-ζ is also good. Also, speed generation (beta 1); If the load on the ink 11j and the detection roller 15 is small, then a type like this is also acceptable. The invention can of course be applied to a rotary printing press having only one rotating printing drum as shown in FIG. 1.As is clear from the detailed description, The present invention is based on rotary printing (the rotational speed of a rotary body that is brought into direct pressure contact with the outer circumferential surface of a rotary drum for printing through a pressure layer, or the outer circumferential surface of a rotary drum for printing). Taking advantage of the change in rotational speed caused by slippage, when this rotational speed change exceeds a preset range, the comparator circuit issues a corresponding ink amount signal. A) Ink 11: Since the ink is detected directly on the outer peripheral surface of the printing rotating drum, the amount of ink can be set in advance. When the amount of ink exceeds the specified range, it is immediately detected and a signal is issued, so the amount of ink on the outer circumferential surface of the drum is always kept within the optimum range, resulting in uniform and good printing results.
I will be treated. 1)) Even if the optimum range of ink amount on the outer circumferential surface of the printing drum changes due to changes in various dimensional conditions, the comparator circuit can be adjusted to accommodate a wide range of outside conditions. The ink amount is detected by 11 in response to the change in the target 1'1. ...11 Brief explanation of the drawings Fig. 1 is an explanatory diagram of a rotary printing machine equipped with an ink amount detection device according to the present invention, and Fig. 2 is an illustration of an embodiment of the ink amount detection device according to the present invention. The block diagram, Figure 3 shows the output characteristics of the speed generation section, and Figure 4 shows the speed power generation () depending on the ink amount λ・j.
It is a diagram of sentence output characteristics. 1... Upper printing rotating drum, 2... F side printing rotating drum l1, 11... Ink pump, 15
...Ink amount detection roller, 18. hmm()···
2], 22... Comparator.

Claims (1)

[Claims] (1) Supply ink to the outer peripheral surface of the rotating printing drum, and -
1. An ink detection device for a rotary printing press in which printing is performed by transmitting ink on the outer circumferential surface of the rotating printing drum through the printed portion of the printing base paper as the rotating printing drum rotates; a rotating body that rotates in pressure contact with the
a first rotational speed detector for detecting the rotational speed of the rotating body; a second rotational speed detector for detecting the number of printing rotary drums; and a second rotational speed detector for detecting the number of rotations of the rotating body;
Rotary printing 1 characterized by comprising a comparison circuit that outputs an ink level signal when the ratio between the output of the rotation speed detector and the output of the second rotation speed detector exceeds a value arbitrarily set in advance. Ink detection device in