JP3746649B2 - Print pump controller - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a printing pump control device suitable for use as an ink pump control device provided in a rotary printing press, and in particular, a plurality of printing devices each having a plurality of printing pump devices and printing printed by each printing device. The present invention relates to a printing pump control apparatus suitable for selectively combining a plurality of folding machines for processing the printer.
[0002]
[Prior art]
A conventional ink pump control device (printing pump control device) will be described with reference to FIGS.
FIG. 7 shows an example of the overall layout of a newspaper rotary press that is a typical example of a rotary printing press. In this newspaper rotary press 1, the web 8 supplied from the paper feeding device 5 is printed through the printing devices 2, 3 and 4, and then introduced into the folding device 7 for folding and cutting, and counting.・ It is discharged to the packing system.
[0003]
In this example, the printing apparatus 2 is configured as a front / back 1 color printing unit, the printing apparatus 3 is configured as a front / back 4 color printing unit, and the printing apparatus 4 is configured as a front 4 color / back 2 color printing unit. The two printing apparatuses 3 shown in the figure are denoted by reference numerals 3a and 3b by adding a and b to the reference numeral 3 when distinguished from each other. In this example, a plurality of folding machines 7a, 7b,..., 7f are provided, and each folding machine 7a, 7b,. These folding machines 7 are also denoted by reference numerals 7a to 7f by adding a to f to the reference numeral 7 when distinguished from each other. Only a part of the printing apparatuses 2 to 4, the folding machines 7a, 7b,..., 7f, the web 8 and the like are illustrated for the convenience of the drawings.
[0004]
The operating states of the printing units 2 to 4 connected to the respective folding machines 7a to 7f are different for each connected folding machine. Therefore, conventionally, the printing units 2, 3, 4, and the like have been configured to be mechanically connectable by connecting / disconnecting means such as a clutch so that an operation group can be formed for each folding machine 7. The clutch was controlled to be connected / disconnected. For example, by disengaging some of the clutches in the lateral direction, the desired driving group is formed at the boundary of the driving group.
[0005]
However, in recent years, a so-called shaftless rotary press has been developed in which a drive motor is provided for each one-color front / back printing device or for each one-color printing device and is operated in an electrically synchronized manner without mechanical connection. As shown in the 4-color printing unit 3b, the web 8 printed with the upper and lower two colors belongs to the group of the folding machine 7b and operates at the speed V2, and the web 8 printed with the lower front and back two colors belongs to the group of the folding machine 7a and belongs to the speed V1. It is now possible to drive at. In this case, the webs 8 belonging to the other folding machines 7 may be operated at the respective speeds V (for example, the web 8 belonging to the folding machine 7 is operated at the speed Vf). This complicates the operation of an ink pump as a printing supply pump.
[0006]
8A and 8B show the front and back one-color printing unit 2. FIG. 8A is a schematic cross-sectional view seen from the side, and FIG. 8B is a schematic front view thereof [viewed in the direction of arrow A in FIG. (C) is a schematic side view showing the configuration of each ink pump device of the ink pump unit 9. As shown in FIG. 8, the web 8 for a newspaper press generally has a width of 4 pages. Therefore, in the ink supply device of the printing apparatus 2, the ink is supplied from the ink pump unit 9 collected in units of one page.
[0007]
Here, as shown in FIG. 8 (B), each ink pump unit 9 is divided into eight in the width direction, and individually comprises an ink pump 15 and a driving stepping motor 16 as shown in FIG. 8 (C). An ink pump device is provided. That is, the ink pump unit 9 is composed of eight ink pumps 15 and eight stepping motors 16. Then, the ink is sent from each ink pump 15 to the ink rail 13 via the hose 14.
[0008]
Each ink pump 15 receives ink from the ink rail 13 from the ink rail 13 in accordance with the line drawing ratio (degree of area to which the ink should adhere) in the area it is responsible for and the machine speed (printing speed). 10 is supplied. As a result, the ink is transferred from the ink roller to the image line portion of the printing plate mounted on the surface of the plate cylinder 11, and further transferred to the blanket cylinder 12 and then transferred to the web 8 to complete the printing.
[0009]
FIG. 9 is a schematic configuration diagram showing a control system of the ink pump 15. As shown in FIG. 9, the stepping motor 16 that drives the ink pump 15 is controlled by the control unit CU. That is, the control unit CU reads the pulse signal from the pulse output unit 18 that detects the printing speed, the image line rate data according to the image line rate, and the column fine adjustment data (column fine data) by the correction button operated by the operator by viewing the print result. (Adjustment data) is received from the outside, and the pulse corresponding to the printing speed is converted into a pulse related to the image rate data and column fine adjustment data and transmitted to the stepping motor 16 to control the ink discharge amount of the ink pump 15 To do. Such a technique is disclosed in, for example, Japanese Patent Publication No. 2644181.
[0010]
[Problems to be solved by the invention]
By the way, with the recent appearance of a shaftless rotary press as described above, the ink pump apparatus has been used in various ways. For example, as shown in FIG. 10, in the case of a multi-color printing apparatus (in this example, the front and back four-color printing unit 3) stacked one above the other, the line W ₁ Web 8 and line W running on ₂ Each of the printing devices 3 and 3 of the web 8 running on the web 8 has different operating speeds V. ₁ , V ₂ There is a possibility of driving.
[0011]
However, in such a case, if it is attempted to cope with the conventional control method, it is necessary to provide a pulse output unit 18 for detecting the printing speed for each front or back printing apparatus, or attach it to each folding machine 7 and process it by wiring. is there.
However, when the pulse output unit 18 is provided in the folding machine as in the latter, a switching device is provided between the plurality of printing devices and the plurality of folding devices, and each of the printing devices (7a, 7b,... 7f) must be switched, and if the switching device is passed through in this way, noise will enter the control system signal.
[0012]
Further, in the configuration in which the pulse output unit 18 is provided for each printing apparatus as in the former, the number of the pulse output units 18 is increased, resulting in an increase in cost, and noise countermeasures required depending on the number of the pulse output units 18 are required. There is a problem that the number increases, and that the cause search becomes complicated when a failure due to noise occurs.
Also, it is difficult to control the number of output pulses to change according to the machine speed change degree (print speed change degree) even with the same stroke rate, and ink is insufficient when the machine speed is increased. This leads to a state in which the user feels uneasy, and when the vehicle decelerates, the state in which the ink becomes too irritated.
[0013]
In addition, although it is possible to use the printing pump similar to said ink pump as a dampening water supply means which supplies dampening water with respect to a printing plate surface, the same subject as the above arises also in this case.
The present invention has been devised in view of the above-described problems, and suppresses an increase in cost while preventing noise from entering a control system signal as much as possible. It is an object of the present invention to provide a printing pump control device capable of appropriately controlling the water supply amount.
[0015]
[Means for Solving the Problems]
Therefore, the printing pump control apparatus according to the first aspect of the present invention is provided in each printing apparatus of a printing press having a plurality of printing apparatuses. , A stepping motor and a printing pump driven by the stepping motor. Mark Printing pump device A plurality of local control units consisting of multiple local control units. Against Each of the above A printing pump control device for controlling the ink supply amount or the dampening water supply amount from the corresponding printing pump by controlling the rotation of the stepping motor, and each of the printing devices described above Each includes a remote CPU, and the remote CPU includes Relationship data indicating the relationship with the folding machine to which each printing apparatus is connected, speed data of the folding machine related to the printing apparatus, column adjustment preset data input in advance for each of the printing pumps, and printing The column fine adjustment data inputted to increase / decrease the column adjustment amount based on the result is inputted, and the pump speed data corresponding to the speed of the printing pump is created based on the speed data of the folding machine. The column adjustment preset data is corrected including addition / subtraction by the column fine adjustment data to create column adjustment data. Local control unit The pump speed data and the column adjustment data are transmitted for each address given to the above.
[0016]
A printing pump control device according to a second aspect of the present invention is the device according to the first aspect. The The frame of data sent for each address is ,all The pump speed data and the corresponding address Relation All the column adjustment data to be made are the component data.
According to a third aspect of the present invention, there is provided a printing pump control apparatus according to the first or second aspect, wherein a local CPU is provided for each address, and the local CPU receives data transmitted from the remote CPU. When the transmitted data is data of its own address, the corresponding pump speed data and each column adjustment data are fetched, the pump is rotated based on the data fetched of each pump, and the transmitted data is the own address. If not, only the corresponding pump speed data is fetched, and the column adjustment data is regarded as the same as the previous time, and control is performed to rotate each pump.
[0017]
Claim 4 The printing pump control device of the present invention described in claim 1-3 Either 1 item In the apparatus described in The remote CPU To convert the folding machine speed data to the pump speed data using a non-linear function that is not simply proportional Has been It is characterized by that.
Claim 5 The printing pump control device of the present invention described in claim 1-4 Either 1 item In the apparatus described in The remote CPU Pre-input column adjustment preset data In The column fine adjustment data The Add and subtract Mosquito Further conversion of ram adjustment data by function To correct New column adjustment data is created, and this new column adjustment data is used as transmission data.
[0018]
A printing pump control device according to a sixth aspect of the present invention is the printing pump control device according to any one of the first to fifth aspects, wherein the remote CPU transmits the data of each address in accordance with a predetermined transmission order. column Adjustment When the column fine adjustment is performed by adding or subtracting the preset data with the column fine adjustment data, the data of the address subjected to the column fine adjustment is interrupted regardless of the transmission order.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each embodiment described later, an ink pump is applied as a printing pump to be controlled. In each embodiment, the printing pump control device is also referred to as an ink pump control device.
[0020]
First, the first embodiment of the present invention will be described. FIGS. 1 to 5 show an ink pump control device (printing pump control device) as a first embodiment of the present invention, and FIG. FIG. 2, FIG. 2 is a system configuration diagram of the main part, FIG. 3 is a data configuration diagram for the control, FIG. 4 is a diagram showing the relationship of the pump speed to the printing speed for the control, and FIG. 5 is a flowchart for explaining the control. It is.
[0021]
As described above (see FIG. 7), the printing press (here, a rotary printing press such as a newspaper rotary press) is fed to a plurality of folding machines 7 and the folding machine 7 set by printing on the web 8. Printing devices (printing units) 2, 3 and 4 are provided. Also in this embodiment, a plurality of (here, m from the 1st to mth) printing units are provided, and in order to control each printing unit, as shown in FIG. That is, the m printing unit control devices 22 from the first to the mth. ₁ ~ 22 _m (In the case of not distinguishing the device number, it is denoted by reference numeral 22). The present ink pump control device (printing pump control device) includes these printing unit control devices 22. ₁ ~ 22 _m And a master CPU 21 to be described later.
[0022]
Each printing unit controller 22 has a plurality (n) of ink pump blocks IPB so as to correspond to a plurality of printing cylinders (here, n from the first cylinder to the n-th cylinder). ₁ ~ IPB _n (In the case of not distinguishing each ink pump block, it is expressed as IPB) and a remote CPU 23 for outputting a control signal to each of these ink pump blocks IPB. The remote CPUs 23 of the printing unit control devices 22 are connected to the folding machines 7a to 7f to which the printing cylinders 1 to n are connected from the outside (hereinafter, each folding machine is also simply indicated as 7). Relationship data, speed data of each folding machine (printing speed data) V ₁ ~ V _f (Hereinafter, when not distinguishing each speed data, it is simply written as V), column adjustment based on the image rate data Trimming Reset data and column fine adjustment data by an operator operation (correction operation) are input.
[0023]
It should be noted that the column adjustment based on the relationship data with the folding machines 7a to 7f, the speed data of each folding machine, and the line drawing rate data. Trimming The reset data is input to the remote CPU 23 through the master CPU 21, and the column fine adjustment data is directly input to the remote CPU 23 in response to an operator operation. As the speed data V of each folding machine, data converted to control the printing press at a speed designated by the operator is used.
[0024]
At this time, in the master CPU 21, signals (folding machine designation signals) for designating folding machines connected to the printing cylinders from the first cylinder to the n-th printing machine are related to the folding machines 7a to 7f (according to the folding machine). Specified data) and output, and the speed instruction signal to each folding machine is sent to the folding machine speed data (printing speed data) V ₁ ~ V _f And output the streak rate data to the column Trimming It is converted to reset data and output.
[0025]
In the remote CPU, based on the input data, the printing speed data V ₁ ~ V _f Is the pump speed data for the ink pump drive motor v ₁ ~ V _f The column adjustment preset data and the column fine adjustment data are converted into column adjustment data A111 to AnkN by adding and subtracting them. Further, the converted data (pump speed data v ₁ ~ V _f , Column adjustment data A111 to AnkN) are transmitted from the remote CPU to the local CPU 24 of each ink pump block IPB. ₁₁ ~ 24 _1k , ..., 24 _n1 ~ 24 _nk (When not distinguishing each ink pump block, it is expressed as 24).
[0026]
The remote CPU 23 and each local CPU 24 are connected by a communication line such as a communication bus. A communication line and a power source are also connected between the local CPUs 24.
Further, the speed data (printing speed data) V of the folding machine input from the outside is converted into data by the master CPU 21 for the speed value (digital value or analog value) instructed to each folding machine 7 for various control of the rotary printing press. What is used is also sent to each remote CPU 23.
[0027]
Column adjustment means each ink pump IP ₁ ~ IP _N Is to adjust the ink amount of the area (this area means the vertical area of the newspaper page, so it is called a column). % To adjust.
Here, the configuration of each ink pump block IPB will be described. As shown in FIG. 2, the ink pump block IPB corresponds to a page to be printed (here, it is assumed that there are 1 to k pages). Multiple (k) local control units LCU ₁ ~ LCU _k (When not distinguishing each local control unit, it is expressed as LCU).
[0028]
Further, each local control unit LCU includes a control circuit 24A and an excitation signal output unit EX provided on a local substrate (local CPU). ₁ ~ EX _N And motor driver MD ₁ ~ MD _N And a plurality (N in this case) of ink pump devices 25 ₁ ~ 25 _N Is provided. Each ink pump device 25 ₁ ~ 25 _N Is provided for each area (e.g., 8 divisions) obtained by dividing the width of the page to be printed. ₁ ~ SP _N (See reference numeral 16 in FIG. 8) and this stepping motor SP ₁ ~ SP _N Ink pump IP driven by ₁ ~ IP _N (See reference numeral 15 in FIG. 8). In addition, in the case where a plurality of excitation signal output units, motor drivers, ink pump devices, stepping motors, and ink pumps are not distinguished, the excitation signal output unit EX, motor driver MD, ink pump device 25, stepping motor SP, Indicated as ink pump IP.
[0029]
The remote CPU creates communication data and sends the communication data to each local CPU 24 in the order of addresses. The communication data has a data structure (data frame) illustrated in FIG. 3C, that is, a start code, address data, pump speed data, column adjustment data, correction code, end code, and the like.
As shown in FIG. 3A, the address is a parent address for each page of each printing cylinder, and for each ink pump in the page, a child address is taken as shown in FIG. 3B. Yes. In addition, the data (frame) of each address includes the pump speed of each printing cylinder 1 to n. data v ₁ ~ V _n However, the column adjustment data A contains only the data of the corresponding address and does not contain the data of other addresses.
[0030]
Then, the local CPU incorporated in each local control unit LCU of each ink pump block IPB (control block for one cylinder) uses its own printing cylinder pump speed data and its own address from the data sent one after another. The column adjustment data is captured and the excitation signal output unit EX ₁ ~ EX _N In each stepping motor SP excitation signal EX _k1 ~ EX _kN , And this signal is sent to the corresponding motor driver MD to drive the stepping motor SP and the ink pump IP to discharge ink. At this time, if the sent data is not the data of the own address, only the pump speed data of the own barrel is taken in, and the speed is corrected assuming that the column adjustment data does not change.
[0031]
This is because the speed correction always needs to be changed corresponding to the change in the machine speed (printing speed) V (that is, in a very short cycle), but the column adjustment does not need to be performed constantly, and adjustment is required. This is because it only needs to be performed only when the data of its own address comes. Thus, the desired print quality can be achieved more quickly by efficient control while suppressing an increase in the data processing amount.
[0032]
Since the ink pump control device (printing pump control device) as the first embodiment of the present invention is configured as described above, the ink pump is controlled as shown in the flowchart of FIG.
First, the remote CPU creates data (step S10). That is, in the remote CPU, designated data corresponding to the folding machine 7 connecting the printing cylinders 1 to n and the printing speed data (V ₁ , V ₂ , ... V _f ), Column adjustment preset data based on the line rate data, and column fine adjustment data by the operator's operation from outside, and print speed data (V ₁ , V ₂ , ... V _f ) Is pump speed data (v ₁ , V ₂ , ..., v _f The column adjustment preset data and the column fine adjustment data are converted into column adjustment data (A111, A112,..., AnkN) obtained by adding and subtracting both values.
[0033]
Then, it is processed into a data structure as illustrated in FIG. 3C (that is, data consisting of start code, address data, pump speed data, column adjustment data, correction code, end code, etc.). For example, as shown in FIGS. 3A and 3B, the address is set in advance so that which pump on which page of which printing cylinder can be specified. Therefore, each ink pump is specified by an address, and data corresponding to each is known.
[0034]
Thus, when data creation is completed, the remote CPU performs data transmission (step S20). That is, the data corresponding to the local control unit LCU1 on the first page of the first ink pump block IPB1 is sequentially transmitted to the communication bus. This data is stored in all local control units IPB ₁ (LCU ₁ ~ LCU _k ) ~ IPB _n (LCU ₁ ~ LCU _k ) Is received (step S70).
[0035]
Each local control unit (LCU) ₁ ~ LCU _k ) Fetches the pump speed data of its own address and corrects the pump speed (step S80), further refers to the address data and determines whether the received data is addressed to its own address (to its own address). It is determined whether or not (step S90). If the received data is addressed to its own address, column adjustment data A at its own address is taken in and column adjustment is performed (step S100).
[0036]
The correction of the pump speed and the column adjustment are performed by obtaining the stepping motor rotation speed P from the pump speed data v related to the own barrel and the column adjustment data A of the own address by the following equation (1), and the excitation signal output unit (EX ₁ , EX ₂ , ... EX _N ), Motor driver (MD ₁ , MD ₂ , ... MD _N ) Via the stepping motor (SP ₁ , SP ₂ , ... SP _N ) Is rotated.
[0037]
P = (v / v _MAX ) X (A / A _MAX ) × C (1)
Where v is pump speed data, v _MAX Is the maximum value of pump speed data, A is column adjustment data, A _MAX Is the maximum value of the column adjustment data, and C is the required maximum rotational speed of the stepping motor. When the local CPU completes receiving the data of its own address, it sends a reception response to the communication bus (step S110).
[0038]
After performing this control, the local CPU receives the next data sent.
In the local control unit LCU, if the next received data is not of its own address, only the pump speed data v of its own barrel is fetched, and (A / A in equation (1)) _MAX While the latest value of the column adjustment data received for the self address is held, the rotation speed P is obtained by the equation (1), and the stepping motor SP is driven based on this rotation speed P. In other words, speed correction is always performed, but column adjustment is performed only when data of its own address comes.
[0039]
Thus, the speed correction that needs to be changed at all times (that is, with a very short cycle) is executed promptly and reliably so that it can follow the change in the folding machine speed (printing speed or machine speed) V, and adjustment is required. The column adjustment is performed as necessary, and desired print quality can be achieved more quickly by efficient control while suppressing an increase in data processing amount.
[0040]
Then, when the remote CPU advances the data transmission and confirms the data transmission of all addresses based on the response reception (step S30) (step S40), it starts transmission from the data of the first address again and repeats this. . If there is no reception response, repeat the data transmission while giving an alarm. If there is a communication abnormality (step S50), an abnormality alarm is generated (step S60).
[0041]
The present ink pump control device operates in this manner. In particular, as described above, the speed data V is data converted to control the printing machine at the speed designated by the operator, so that the conventional speed data V is used in the conventional manner. Since there is no need for the pulse output unit 18 for controlling the ink pump IP and there is no pulse wiring system, there is an effect of greatly reducing the frequency of fluctuation of the ink discharge amount of the ink pump due to the influence of noise (noise). , Wiring complexity is eliminated, and initial price and maintenance management are easy.
[0042]
Further, since the control is performed by data communication, it is easy to eliminate the influence of disturbance such as noise, and further, it is possible to easily take measures against the influence of disturbance.
In addition, the pump speed of each cylinder is included in all data data (V ₁ ~ V _f ) And can be easily operated at different speeds for each printing cylinder depending on the selection and designation from the outside, and there is an effect that it is easy to cope with a shaftless rotary press.
[0043]
In this embodiment, the pump speed for each printing cylinder is included in the data to be transmitted each time. However, when the front and back printing cylinders are always operated integrally, the front and back printing cylinders (that is, (Considering the printing cylinders on the front and back sides), pump speed data may be entered.
In addition, column adjustment preset data based on external line rate data is input, but this column adjustment preset data may be column adjustment data input by an operator before printing is started.
[0044]
By the way, as a data creation method in the remote CPU, it is conceivable to add a special relationship to the data created in the remote CPU instead of performing simple proportional conversion. For example, FIG. 4A shows an example in which the conversion rate is changed depending on whether the printing machine changes the relationship of converting from the printing speed to the ink pump speed to a constant speed state, an acceleration state, or a deceleration state. In FIG. 4A, the line a indicates the conversion rate when the printing press is in a constant speed state, the line a ′ indicates the conversion rate when the printing press is in an acceleration state, and the line a ″ indicates when the printing press is in a deceleration state. The conversion rate is shown respectively.
[0045]
In other words, the conversion from the printing speed to the ink pump speed is not performed by simple proportional conversion. For example, the printing machine is changed from the printing speed based on the optimum function according to the transient state (constant speed state, acceleration state or deceleration state). By performing conversion to the ink pump speed, the pump speed can be controlled more appropriately. In particular, when the printing press accelerates, the ink becomes scarce, and when the printing press decelerates, the ink becomes scarce. Considering this, for example, lines a ′ and a ″ shown in FIG. By performing the conversion from the printing speed to the ink pump speed, the ink supply amount can be appropriately controlled even when the machine speed (printing speed) V varies.
[0046]
Further, as shown by a line b in FIG. 4B, the relationship between the printing speed and the ink pump speed in the constant speed state may be set to a curvilinear relationship that is not proportional (linear).
In other words, it is possible to use a nonlinear function that is not simply proportional to the conversion from the speed data of the folding machine to the pump speed data, and even with such a configuration, the pump speed can be controlled more appropriately. Will be able to.
[0047]
These conversions can be freely created simply by providing a conversion table because the input to the remote CPU is digital data.
In particular, since the remote CPU provided for each printing unit uses digital data for input and output, there is an advantage that a conversion function can be easily added as described above. Although not described above, the column adjustment data can be easily converted into the input data in consideration of the influence of the difference with the adjacent data. Since the conversion function can be easily set in this way, in addition to the above-described effects, a function corresponding to the characteristics of the printing press can be set to improve print quality and reduce paper loss by early stabilization. .
[0048]
Next, the second embodiment of the present invention will be described. FIG. 6 is a flowchart for explaining the control by the ink pump control device (printing pump control device) as the second embodiment of the present invention. In the first embodiment, after the data is created in the remote CPU, this data is transmitted to the local CPU, and the data is sequentially transmitted in the order of the parent address after confirmation of reception. In contrast, in the present embodiment, the data is transmitted sequentially. If the column fine adjustment is performed during the process, that is, if there is a change in the column fine adjustment value, the data transmitted from the remote CPU is interrupted while ignoring the transmission order, and the column fine adjustment value is changed. It is configured to transmit data at a certain address.
[0049]
Since the ink pump control device (printing pump control device) as the second embodiment of the present invention is configured as described above, the ink pump is controlled as shown in the flowchart of FIG. In the flowchart of FIG. 6, the same steps as those in FIG. 5 indicate the same operations, and therefore, here, steps S32 and S34 not shown in FIG. 5 will be mainly described.
[0050]
The remote CPU performs data creation (step S10) and data transmission (step S20), and determines whether or not there is a change in the column fine adjustment value when data transmission progresses and a response is received (step S30). Based on (Step S32), when there is a change in the column fine adjustment value (when the column fine adjustment is performed on the way), the data transmitted from the remote CPU is interrupted while ignoring the transmission order, and the column fine adjustment is performed. The data of the parent address whose value has fluctuated is transmitted (step S34). Other than this, the operation is the same as in the first embodiment.
[0051]
Therefore, in the present embodiment, when the operator performs the column fine adjustment as described above, the order of data transmission is ignored and the interruption is performed and the correction is performed quickly, so that the desired print quality can be quickly achieved. .
Note that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
[0052]
For example, in each of the above-described embodiments, the ink pump control device that controls the ink pump as the printing press pump control device has been described as an example. However, the ink pump according to the present embodiment can be used as a dampening water supply unit that supplies the printing plate. It is conceivable to use a printing pump having a similar configuration, but in this case as well, the same effect as described above can be obtained by applying the printing press pump control device.
[0053]
Moreover, you may utilize only a part of said embodiment, and may comprise combining each part structure of said embodiment partially.
For example, a local CPU is provided for each group of a plurality of printing pump devices, and the local CPU receives speed data relating to the printing speed and column adjustment data based on the line rate data as communication data. Only a configuration for controlling the operation of the pump (rotation of the stepping motor) based on the above may be applied.
[0054]
Furthermore, designated data corresponding to each folding machine, folding machine speed data related to each printing device, column adjustment preset data, and column fine adjustment data are input to the remote CPU, and pump speed data, Only a configuration in which column adjustment data is created and data is transmitted for each address of each printing device or each printing pump device may be applied.
[0056]
【The invention's effect】
As described in detail above, according to the ink pump control device of the present invention described in claim 1, the remote CPU is The Relationship data indicating the relationship with the folding machine to which each printing apparatus is connected, speed data of the folding machine related to the printing apparatus, column adjustment preset data input in advance for each of the printing pumps, and printing The column fine adjustment data inputted to increase / decrease the column adjustment amount based on the result is inputted, and the pump speed data corresponding to the speed of the printing pump is created based on the speed data of the folding machine. The column adjustment data is created by correcting the column adjustment preset data including addition and subtraction using the column fine adjustment data. And Each of the above Local control unit Since the pump speed data and the column adjustment data are transmitted for each address given to the printer, a pulse output unit for controlling the printing pump can be eliminated as in the prior art, and a pulse wiring system is unnecessary. This makes it difficult to be affected by disturbances (noise) on the control signal, making it easy to take measures against disturbances such as noise, and, for example, the frequency of fluctuations in the ink discharge amount of the ink pump is greatly reduced. In addition, the complexity of parts and wiring is eliminated, and the initial price and maintenance management are facilitated. In addition, since it is possible to easily operate at different speeds for each printing cylinder according to selection designation from the outside through a remote CPU, there is an effect that it is easy to cope with a shaftless rotary press. It is also easy to appropriately control the ink supply amount and the fountain solution supply amount even when the machine speed (printing speed) varies.
[0057]
According to the ink pump control device of the present invention, the data frame to be transmitted for each address is ,all All pump speed data and corresponding addresses Relation Since all the column adjustment data to be made are the component data, there is an advantage that the data can be reliably transmitted to each address without causing data transmission leakage.
[0058]
Claim 3 According to the ink pump control apparatus of the present invention described above, when the local CPU provided for each address receives data transmitted from the remote CPU, and the transmitted data is data of its own address, the corresponding pump speed The data and each column adjustment data are taken in, the pump is rotated based on the data taken in each pump, and when the transmitted data is not the data of its own address, only the corresponding pump speed data is taken. Since the pumps are controlled to rotate as if they are the same, efficient control by suppressing an increase in the amount of data processing can respond appropriately to fluctuations in machine speed (printing speed) and more quickly as desired. Quality can be achieved.
[0059]
Claim 4 According to the ink pump control device of the present invention described, The remote CPU Because non-linear functions that are not simply proportional are used to convert folding machine speed data to pump speed data, it is possible to easily cope with fluctuations in machine speed (printing speed) and to control pump speed more appropriately. Will be able to.
Claim 5 According to the ink pump control device of the present invention described, The remote CPU Pre-set column adjustment preset data In Column fine adjustment day T The column adjustment data after addition / subtraction is further converted by function To correct Thus, since new column adjustment data is created and used as transmission data, it is possible to easily cope with fluctuations in the machine speed (printing speed) and to control the pump speed more appropriately.
[0060]
Claim 6 According to the described ink pump control device of the present invention, the remote CPU normally transmits the data of each address according to a certain transmission order, and the column fine adjustment is performed to add or subtract the column adjustment preset data with the column fine adjustment data. In this case, since the address data for which the column is finely adjusted is interrupted regardless of the transmission order, the desired print quality can be achieved more quickly.
[Brief description of the drawings]
FIG. 1 is a system configuration diagram showing a printing pump control apparatus as a first embodiment of the present invention.
FIG. 2 is a system configuration diagram showing a main part of the printing pump control apparatus according to the first embodiment of the present invention.
FIG. 3 is a data configuration diagram related to pump control by the printing pump control apparatus as the first embodiment of the present invention.
FIG. 4 is a diagram illustrating a relationship of a pump speed with respect to a printing speed when pump control is performed by the printing pump control apparatus according to the first embodiment of the present invention.
FIG. 5 is a flowchart illustrating pump control by the printing pump control apparatus as the first embodiment of the invention.
FIG. 6 is a flowchart illustrating pump control by a printing pump control apparatus as a second embodiment of the present invention.
FIG. 7 is a side view showing an overall arrangement example of a newspaper rotary press which is an example of a conventional rotary printing press.
8A and 8B are schematic views showing a front and back one-color printing unit as an example of a conventional printing apparatus. FIG. 8A is a schematic cross-sectional view seen from the side, and FIG. 8B is a schematic front view thereof. FIG. 8A is a schematic side view showing the configuration of each ink pump device of the ink pump unit.
FIG. 9 is a system configuration diagram showing a control system of a conventional ink pump (printing pump).
FIG. 10 is a schematic diagram illustrating a configuration example of a conventional multicolor printing apparatus.
[Explanation of symbols]
1 Newspaper press
2 Front and back 1 color printing unit
3 Front and back 4 color printing unit
4 Front 4 color, back 2 color printing unit
5 Paper feeder
7 Folding machine
8 Web
9 Ink pump unit (IPU)
10 Ink roller group
11 Plate cylinder
12 Blanket trunk
13 Ink rail
14 Hose
15 Ink pump
16 Stepping motor
17 Ink supply piping
18 Pulse output section
21 Master CPU
22, 22 ₁ ~ 22 _m Printing unit controller
23 Remote CPU
24, 24 ₁₁ ~ 24 _1k , ..., 24 _n1 ~ 24 _nk Local CPU
24A control circuit
25, 25 ₁ ~ 25 _N Ink pump device
EX, EX ₁ ~ EX _N Excitation signal output section
IP, IP ₁ ~ IP _N Ink pump
IPB, IPB ₁ ~ IPB _n Ink pump block
LCU, LCU ₁ ~ LCU _k Local control unit
MD, MD ₁ ~ MD _N Motor driver
SP, SP ₁ ~ SP _N Stepping motor

Claims (6)

Each printing apparatus for a printing press having a plurality of printing devices, includes a plurality of local control units which stepping motor and the stepping motor by Ru printing pumping device name from the print pump driven is gathered plurality of the A printing pump control device that controls an ink supply amount or a dampening water supply amount from a corresponding printing pump by controlling the rotation of each of the above stepping motors for a plurality of local control units ,
Each of the above printing devices has a remote CPU,
The remote CPU
A relationship data indicating a relationship between a folding machine to which the respective printing devices are connected,
Folding machine speed data associated with the printing device;
Column adjustment preset data input in advance for each of the above printing pumps,
The column fine adjustment data is input to increase or decrease the column adjustment amount based on the print result,
Based on the speed data of the folding machine, pump speed data corresponding to the speed of the printing pump is created, and the column adjustment preset data is corrected including addition / subtraction by the column fine adjustment data to obtain column adjustment data. make,
That sends the pump speed data and the column adjustment data for each address given to each local control unit of the
It characterized the this, printing pump controller. Frames of data to be transmitted for each said address, and the pump speed data of all the hand, characterized by all of the column adjustment data and the component data associated with the corresponding address, according to claim 1, wherein Print pump controller. A local CPU is provided for each address,
The local CPU receives data transmitted from the remote CPU, and when the transmitted data is data of its own address, captures the corresponding pump speed data and each column adjustment data, and converts each pump into the data captured. The pump is rotated based on this, and when the transmitted data is not the data of its own address, only the corresponding pump speed data is fetched, and the column adjustment data is regarded as the same as the previous time, and control is performed so that each pump is rotated. The printing pump control device according to claim 1 or 2.   4. The remote CPU according to any one of claims 1 to 3, wherein the remote CPU is configured to use a non-linear function that is not simply proportional to convert the folding machine speed data to the pump speed data. Print pump controller.   The remote CPU further corrects the column adjustment data obtained by adding / subtracting the column fine adjustment data to the column adjustment preset data input in advance by converting the function to create new column adjustment data. 5. The printing pump control device according to claim 1, wherein the adjustment data is transmission data. The remote CPU usually transmits the data of each address according to a certain transmission order, and when the column fine adjustment is performed by adding or subtracting the column adjustment preset data with the column fine adjustment data, the remote CPU performs the address adjustment of the column fine adjustment. 6. The printing pump control apparatus according to claim 1, wherein the printing pump control apparatus is configured to interrupt data regardless of a transmission order.

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