TW202220850A - Register control system capable of suppressing the operation man-hours for register adjustment - Google Patents

Abstract

An object of this invention is to provide a register control system that is capable of suppressing the operation man-hours for register adjustment. A register control system (20) according to an embodiment of this invention controls register adjustment of a printing unit (10) of a multi-color printing system and comprises a machine-side control unit (40) being a fixed type control panel for setting the production conditions of the printing unit (10) and acquiring registration information related to the registration of the printing unit (10); and a portable control unit (42) that is capable of acquiring and displaying the registration information from the machine-side control unit (40). The portable control unit (42) is configured to be able to operate the machine-side control unit (40).

Description

Register Control System

The present invention relates to a registration control system. This application claims priority based on Japanese Patent Application No. 2020-197266 filed on November 27, 2020. The entire contents of the Japanese application are incorporated in this specification by reference.

There is known a printing unit that utilizes registration marks to manage registration deviations. Patent Document 1 describes a printing press provided with a printing unit having a registration mark detection device. In a web-fed rotary printing machine, the paper path length between the printing units of various colors varies due to the influence of tension or drying, and the registration deviates. Therefore, the printing units operate while adjusting the registration deviation. As an example, by detecting a registration mark preliminarily marked on an end portion in the width direction of a web such as paper or film, and calculating the amount of the registration deviation, the registration deviation can be adjusted by the positioning adjustment device provided in the printing unit. . [Prior Art Literature]

[Patent Document 1] Japanese Patent Laid-Open No. 2007-021743

[Problems to be Solved by Invention]

The inventors of the present invention have found the following by examining a registration control system of a printing apparatus having a plurality of printing units. For example, in order to perform registration adjustment for adjusting the registration deviation of each printing unit of the printing apparatus, it is considered to use a fixed operation panel at a position away from the printing unit. The registration adjustment is performed by operating a registration adjustment device such as a registration roller installed in the printing unit, and the fixed operation panel has a display function of a waveform indicating whether the registration is good or not.

Therefore, the operator adjusts by operating the registration adjustment device of the printing unit, and the quality of the registration cannot be confirmed here. Therefore, the operator moves to the fixed operation panel and uses the fixed operation panel to confirm the quality of the registration according to the waveform display. This adjustment and confirmation operation is repeated for each printing unit. In this case, since the entire printing apparatus is long when going back and forth between the fixed operation panel and the register adjustment device, the movement route of the operator becomes longer, and the man-hours for adjustment is increased. Because of these problems, the printing press described in Patent Document 1 has a problem from the viewpoint of suppressing the man-hours for register adjustment.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a register control system capable of suppressing the man-hours for register adjustment. [Technical means to solve problems]

In order to solve the above-mentioned problems, the one-state registration control system of the present invention is a registration control system for controlling the registration adjustment of the printing unit of the multi-color printing system, which includes: a machine-side control unit for setting the production of the printing unit The conditional fixed control panel acquires the registration information related to the registration of the printing unit; and the portable control unit can acquire and display the registration information from the machine side control unit. The portable control unit is configured to be able to operate the machine-side control unit.

In addition, any combination of methods, apparatuses, programs, temporary or non-transitory storage media for recording programs, systems, etc., are replaced with each other, and the aspects of the constituent elements or expressions of the present invention are also regarded as aspects of the present invention. and effective. [Effect of invention]

According to one aspect of the present invention, it is possible to provide a register control system capable of suppressing the man-hours for register adjustment.

Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings. In the embodiment and the modified example, the same or equivalent components and members are denoted by the same reference numerals, and overlapping descriptions are appropriately omitted. In addition, in order to facilitate understanding, the dimensions of the members in each drawing are appropriately enlarged and reduced and shown. In addition, in each drawing, a part of the member which is not important in the description of embodiment is abbreviate|omitted and shown.

In addition, regarding each constituent element that has something in common, words such as "1st, 2nd" are added at the beginning of the name, and letters are added at the end to distinguish it from others, and these words are omitted when collectively referred to. In addition, technical terms including ordinal numbers such as the first and second are used to describe various components, but the technical terms are used only for the purpose of distinguishing one component from other components, and the components are not limited by the technical terms.

[embodiment] Referring to FIGS. 1 and 2 , the register control system 20 according to the embodiment of the present invention will be described. FIG. 1 is a diagram showing the configuration of a multicolor printing system 100 provided with a registration control system 20 . FIG. 2 is a block diagram showing the function and configuration of the register control system 20 . The multicolor printing system 100 includes a first printing unit 10A, a second printing unit 10B, and a registration control system 20 , and performs predetermined multicolor printing on the web 2 . The first printing unit 10A and the second printing unit 10B are collectively referred to as the printing unit 10 . A plurality of printing units 10 connected together may be referred to as a printing apparatus.

The first printing unit 10A and the second printing unit 10B include a plate cylinder 11 , an impression cylinder 12 , and a unit control unit 14 , respectively. The web 2 is guided along a predetermined conveying path by the guide roller 4 , and is pressed against the plate cylinder 11 by the impression cylinder 12 . Patterns and registration marks of colors corresponding to the printing plate cylinder 11 are printed on the web 2 . The first registration mark 6A (not shown in FIG. 1 ) is printed by the first printing unit 10A, and the second registration mark 6B (not shown in FIG. 1 ) is printed by the second printing unit 10B. The web 2 for which the multi-color printing system 100 is directed may be webs having various levels of light transmittance. For example, the web 2 is a transparent, translucent or opaque web.

The unit control unit 14 changes various adjustment parameters of the printing unit 10 according to the control of the machine-side control unit 40 and the portable control unit 42 . In particular, the first printing unit 10A and the second printing unit 10B each include a doctor blade 52 for scraping off excess ink on the surface of the printing plate cylinder 11 , and a doctor blade adjustment section 54 for adjusting the position of the doctor blade 52 and the like. Moreover, the 2nd printing unit 10B is provided with the register adjustment part 50. As shown in FIG.

(Squeegee Adjustment Section) Referring to FIG. 1 , the blade adjusting portion 54 will be described. Due to poor adjustment of the squeegee blade 52, printing stains such as squeegee squeegee and plate fog are generated. The doctor blade adjusting portion 54 is a mechanism for adjusting the doctor blade 52 , and can change the position, angle, pressure, and the like of the doctor blade 52 . The doctor blade adjustment part 54 of this embodiment changes the position, angle, pressure, etc. of the doctor blade 52 according to the control of the machine side control unit 40 and the portable control unit 42 .

(Register Adjustment Section) Referring to FIG. 1 , the registration adjustment unit 50 will be described. The registration adjustment part 50 is a mechanism for adjusting the registration deviation when the registration deviation occurs. The printing unit 10B of the present embodiment includes an offset adjustment unit (not shown) in the registration adjustment unit 50 . The registration adjustment section 50 automatically executes a registration error (hereinafter, referred to as a registration error) detected by an analog waveform (registration signal waveforms A and B described later) indicating the quality of registration by a registration error compensator (not shown). "Waveform Detection Registration Error") control to zero. The offset adjustment unit adjusts the offset between the waveform detection registration error and the registration deviation of the actual printed matter (hereinafter, referred to as "physical registration error"). In the present embodiment, the register adjustment unit 50 has an operation unit for adjusting the offset. The operator 3 can operate the registration adjustment unit 50 to adjust the offset. By this offset adjustment, the registration can be adjusted more accurately. Hereinafter, the step of adjusting the offset from the registration adjusting unit 50 is referred to as "register adjustment".

Referring to FIG. 1 , FIG. 2 , and FIG. 3 , the registration control system 20 will be described. The registration control system 20 detects the registration marks printed on the web 2, and determines the registration deviation (waveform detection registration error) between the first printing unit 10A and the second printing unit 10B according to the detection result, and uses the detection result. This error is compensated by a registration error compensator. Furthermore, the registration control system 20 provides the operator 3 with an analog waveform indicating whether the registration is good or not. In the present embodiment, the operator 3 can perform the registration adjustment from the registration adjustment unit 50 in the vicinity of the second printing unit 10B based on the analog waveform provided.

The registration control system 20 of the present embodiment includes a registration detection unit 30 , a machine-side control unit 40 , a portable control unit 42 , a registration adjustment unit 50 , and a blade adjustment unit 54 . The registration detection unit 30 detects the registration mark printed on the web 2 , and sends the detection result to the machine-side control unit 40 . The machine-side control unit 40 is a fixed control panel for setting the production conditions of the plurality of printing units 10 . The machine-side control unit 40 can communicate with each printing unit 10 . The machine-side control unit 40 can acquire and display registration-related registration information from each printing unit 10 .

Portable control unit 42 is a portable control panel. The portable control unit 42 can acquire and display the registration information from the machine-side control unit 40 . The machine-side control unit 40 and the portable control unit 42 will be described later.

Referring to FIG. 2 , the registration detection unit 30 will be described. The registration detection section 30 includes: a first sensor 30a for detecting the first registration mark 6A printed by the first printing unit 10A; and a second sensor 30b for detecting the first registration mark 6A printed by the second printing unit 10B 2 registration marks 6B.

The first sensor 30a and the second sensor 30b are arranged at an interval L. The interval L corresponds to the distance between the first registration mark 6A and the second registration mark 6B when no misregistration occurs. The first sensor 30a and the second sensor 30b are optical sensors, and include a light source 32, an optical system 33, and a light receiving element 34, respectively.

The light source 32 irradiates light toward the web 2 . The light source 32 irradiates light especially toward the area through which the register marks pass. The light irradiated from the light source 32 is irradiated on the registration mark, reflected there, collected by the optical system 33 , and received by the light-receiving element 34 . Alternatively, the light irradiated from the light source transmits the roll paper 2 and irradiates the background portion, is reflected by a reflector (not shown), and transmits the roll paper 2 again, is condensed by the optical system 33, and is transmitted by the light receiving element 34. receive light. The optical system 33 is constituted by a known technique.

The light receiving element 34 is, for example, a photodiode. The light receiving element 34 converts the received light into a current signal and outputs it. The magnitude of the current signal is obtained by integrating the product of the intensity of the received light and the light-receiving sensitivity for each wavelength. That is, the light receiving element 34 outputs a current signal corresponding to the received light. The current signal is converted into a voltage signal by a current-voltage conversion circuit (not shown), and is output to the machine-side control unit 40 .

Referring to FIG. 2 , the machine-side control unit 40 will be described. Regarding the various blocks of the machine-side control unit 40 and the portable control unit 42 shown in FIG. 2 , the hardware can be realized by components or mechanical devices represented by the CPU (Central Processing Unit) of a computer, and the software Aspects are implemented by computer programs and the like, and functional blocks implemented by cooperation of these are depicted herein. Therefore, those skilled in the art who have access to this specification should understand that these functional blocks can be implemented in various forms by a combination of hardware and software.

The machine-side control unit 40 includes a first registration mark detection unit 44a, a second registration mark detection unit 44b, a registration deviation detection unit 46, a parameter acquisition unit 40a, an operation input unit 40b, a display unit 40c, a parameter control unit 40d, The scraper control unit 40e and the communication unit 40f.

First, the first registration mark detection unit 44a, the second registration mark detection unit 44b, and the registration deviation detection unit 46 detect the difference between the first printing unit 10A and the second printing unit 10B based on the detection results of the registration detection unit 30. The mechanism of the registration deviation between the two will be explained.

The first registration mark detection unit 44a detects the first registration mark 6A based on the signal output from the first sensor 30a. The first registration mark detection unit 44a compares the signal strength of the signal output from the first sensor 30a with a predetermined detection threshold. For example, when the signal strength exceeds the detection threshold, it is determined that the first register is detected at that time. The registration mark 6A (the first registration mark 6A has reached the detection area). The second registration mark detection unit 44b detects the second registration mark 6B based on the signal output from the second sensor 30b. The second registration mark detection unit 44b has the same configuration as the first registration mark detection unit 44a.

The registration deviation detection unit 46 obtains detection results from the first registration mark detection unit 44a and the second registration mark detection unit 44b, respectively. The registration deviation detection unit 46 determines the presence or absence of the deviation of the printing position between the printing plate cylinders 11 , that is, the presence or absence of the registration deviation, based on the detection results.

FIGS. 3( a ) and 3 ( b ) are graphs showing an example of detection results by the first registration mark detection unit 44 a and the second registration mark detection unit 44 b , respectively. Graph g1 of FIG. 3(a) shows the signal waveform of the first registration mark 6A detected by the first registration mark detection unit 44a (hereinafter, referred to as “register signal waveform A”), and the graph of FIG. 3(b) The graph g2 shows the signal waveform of the second registration mark 6B detected by the first registration mark detection unit 44a (hereinafter, referred to as "register signal waveform B").

As described above, the first sensor 30a and the second sensor 30b are arranged at the interval L, and when there is no registration deviation, the first registration mark 6A and the second registration mark 6B are also printed at the interval L, so there is no When a misregistration occurs, the first registration mark 6A and the second registration mark 6B are detected at substantially the same timing. Therefore, at the first time t1 at which the first registration mark detection unit 44a detects the first registration mark 6A and the second time t2 at which the second registration mark 6B is detected by the second registration mark detection unit 44b When they are substantially the same, the registration deviation detection unit 46 determines that the registration deviation does not occur. On the other hand, when the first time t1 and the second time t2 are different, the registration deviation detection unit 46 determines that a difference corresponding to the difference between the first time t1 and the second time t2 multiplied by the roll paper 2 has occurred in the traveling direction. The registration deviation of the amount of feedrate.

In addition, the registration deviation detection unit 46 detects the magnitude of the registration deviation (hereinafter, referred to as "registration error") based on the registration signal waveform A and the registration signal waveform B, and generates a set indicating the time change of the registration error Quasi-error waveform. Graph g3 in FIG. 4 is a graph showing an example of a registration error waveform. By displaying the registration error waveform (graph g3 ), the operator 3 can confirm the change in the registration error substantially in real time.

Referring to FIG. 2 , other configurations of the machine-side control unit 40 will be described. The parameter acquisition unit 40 a acquires adjustment parameters of each printing unit 10 via the unit control unit 14 . As the adjustment parameter of the printing unit 10 , the proportional gain of the registration error compensator, the sensitivity levels of the first and second sensors, and the like can be mentioned. The operation input unit 40b accepts an operation input for setting the production conditions of each printing unit 10 and the multicolor printing system 100 . Moreover, the operation input part 40b accepts the operation input for displaying each waveform, such as the registration signal waveform A, the registration signal waveform B, and the registration error waveform of each printing unit 10. FIG. The display unit 40c is a liquid crystal display capable of displaying respective waveforms such as the registration signal waveform A, the registration signal waveform B, and the registration error waveform.

The parameter control unit 40d controls the adjustment parameters of each printing unit 10 in accordance with the operation of the operation input unit 40b. The blade control unit 40e controls the blade adjustment unit 54 in accordance with the operation of the operation input unit 40b. The communication section 40f exchanges information with the portable control unit 42 through wireless communication. The machine-side control unit 40 sends the information related to the adjustment parameters of the printing units 10 , the registration signal waveform A, the registration signal waveform B and the registration error waveform of each printing unit 10 to the portable control unit 42 via the communication unit 40f. The machine-side control unit 40 receives the information related to the operation input received by the portable control unit 42 via the communication unit 40f.

(Portable Control Unit) 2, 5, 6, and 7, the portable control unit 42 will be described. FIG. 5 , FIG. 6 , and FIG. 7 are schematic diagrams showing an example of the portable control unit 42 . The portable control unit 42 is a liquid crystal display with a touch panel, and the display screen changes according to the operation mode. In the screen of the portable control unit 42, an area that accepts touch operations is designated as an operation input portion, and an area that mainly displays graphs and images is designated as a display portion. FIG. 5 shows an example of a display screen in the registration adjustment mode. FIG. 6 shows an example of a display screen in the blade adjustment mode. FIG. 7 shows an example of a display screen in the parameter adjustment mode.

The portable control unit 42 of the present embodiment includes an operation input unit 42b, a display unit 42d, and a communication unit 42f. The operation input unit 42b accepts an operation input for setting the production conditions of each printing unit 10 and the multicolor printing system 100 . The operation input unit 42b includes a mode selector 42s for selecting an operation mode such as a registration adjustment mode, a blade adjustment mode, and a parameter adjustment mode.

The portable control unit 42 of the present embodiment can display the waveform generated based on the registration information. As shown in FIG. 5 , the display unit 42 d can display the registration signal waveform A ( g1 ) and the registration signal waveform B ( g2 ) of the printing unit 10 . Moreover, as shown in FIG. 6, the display part 42d can display a registration error waveform (g3). In addition, the display content of the display part 42d is not limited. According to this configuration, the operator 3 can confirm the waveform generated based on the registration information in the vicinity of each printing unit 10, thereby eliminating the trouble of returning to the machine-side control unit 40 for confirmation, thereby improving productivity.

The communication part 40f of the portable control unit 42 exchanges information with the machine-side control unit 40 through wireless communication. The information sent is not limited, but the portable control unit 42 in this example sends the information related to the operation input received by the operation input part 42b to the machine-side control unit 40 via the communication part 40f. The information received is not limited, but the portable control unit 42 in this example receives from the machine-side control unit 40 the adjustment parameters of the printing units 10 , the registration signal waveform A, the registration signal waveform B and the Registration error waveform and other information. According to this configuration, the operator 3 can acquire the information of the machine-side control unit 40 in the vicinity of each printing unit 10, and can transmit the operation information, thereby eliminating the trouble of returning to the machine-side control unit 40, and improving productivity.

The portable control unit 42 of the present embodiment can remotely operate the machine-side control unit 40 . For example, by inputting an operation to the operation input unit 42b of the portable control unit 42, the device-side control unit 40 can be made to perform the same operation as when an operation is input to the operation input unit 40b of the device-side control unit 40. According to this configuration, the operator 3 can perform remote operation while checking the state of each printing unit 10 in the vicinity, thereby eliminating the trouble of returning to the machine-side control unit 40 for operation, thereby improving productivity.

The portable control unit 42 of the present embodiment can perform individual adjustment of each printing unit 10 and overall adjustment of the multicolor printing system 100 . That is, the portable control unit 42 can remotely perform the individual adjustment of each printing unit 10 via the machine-side control unit 40 . In addition, the portable control unit 42 can remotely perform the overall adjustment of the multicolor printing system 100 via the machine-side control unit 40 . According to this configuration, the operator 3 can remotely perform individual adjustment and overall adjustment while confirming the printing state in the vicinity of each printing unit 10, so that the trouble of returning to the machine-side control unit 40 for adjustment can be omitted, thereby improving productivity. .

The portable control unit 42 of the present embodiment can control the posture of the doctor blade 52 of each printing unit 10 . When performing squeegee adjustment, the portable control unit 42 is switched to the squeegee adjustment mode, and the registration error waveform (g3) is displayed (FIG. 6). In this state, the operator 3 operates the operation input unit 42 b of the portable control unit 42 while checking the printing smudges by visual inspection or a detection mechanism for detecting the printing smudges in the vicinity of the printing unit 10 . Thereby, the doctor blade adjustment part 54 is controlled, and the adjustment of the position, angle, pressure, etc. of the doctor blade 52 is changed. In this example, since the quality of the state of the doctor blade 52 is displayed as the amplitude of the periodic variation of the registration error waveform (g3) of the display unit 42d, the operation input unit 42b is operated to reduce the amplitude. According to this configuration, the operator 3 can perform adjustment while checking the state of the doctor blade 52 in the vicinity of each printing unit 10, thereby eliminating the trouble of returning to the machine-side control unit 40 for adjustment, thereby improving productivity.

The portable control unit 42 of the present embodiment can change the adjustment parameters of each printing unit 10 . When changing the adjustment parameters of the printing unit 10, the portable control unit 42 is switched to the parameter adjustment mode (FIG. 7). As shown in FIG. 7 , in the parameter adjustment mode, the adjustment parameters of the printing unit 10 received via the communication unit 40f of the machine-side control unit 40 are displayed on the display unit 42d. The display includes textual information or graphical information. Moreover, in this mode, the operation input part 42b for accepting the operation input for changing an adjustment parameter is displayed. In this state, the operator 3 performs an operation input to the operation input unit 42b to change the adjustment parameter. As a result, the adjustment parameters of the printing unit 10 are changed. In other words, the operation input unit 42b in this mode functions as a change operation unit 42p for adjusting parameters. According to this configuration, the operator 3 can change the adjustment parameters while checking the printing state in the vicinity of each printing unit 10 , and thus saves the trouble of returning to the machine-side control unit 40 to make changes, thereby improving productivity.

Referring to Fig. 5, the registration adjustment will be described. When performing the registration adjustment, the portable control unit 42 is switched to the registration adjustment mode (FIG. 5). As shown in FIG. 5 , in the register adjustment mode, the register signal waveform A (g1) and the register signal waveform B (g2) of the printing unit 10 received via the communication unit 40f of the machine-side control unit 40 are displayed on the display unit 42d. ). The waveform detection registration error is the difference Δt between the detection times of the registration marks 6A and 6B, and the control to set the waveform detection registration error to zero is automatically performed by the registration error compensator. In this state, the operator 3 adjusts the offset adjustment unit of the registration adjustment unit 50 so as to reduce the offset between the actual registration error and the waveform detection registration error while visually confirming the actual registration error from the actual printed matter. . According to this configuration, the operator 3 can operate the registration adjusting section 50 while checking the offset in the vicinity of each printing unit 10, so that the trouble of checking the waveform detection registration error by the machine-side control unit 40 is eliminated, and the production Sexual improvement.

The features of the register control system 20 of the present embodiment configured as described above will be described. The registration control system 20 is a registration control system for controlling the registration adjustment of the printing unit 10 of the multi-color printing system. and obtain registration information related to the registration of the printing unit 10; According to this configuration, the operator 3 can perform the registration adjustment while checking the registration information in the vicinity of the printing unit 10 , thereby eliminating the trouble of returning to the machine-side control unit 40 to check the registration information, thereby improving productivity.

The above describes the basic configuration and operation of the register control system 20 of the multicolor printing system 100 .

The examples of the embodiments of the present invention have been described above in detail. The above-described embodiments are only specific examples for implementing the present invention. The contents of the embodiments do not limit the technical scope of the present invention, and various design changes such as changes, additions, and deletions of constituent elements can be made without departing from the spirit of the invention defined in the claims. In the above-mentioned embodiment, the content that can make such a design change is described with the words "of the embodiment" and "in the embodiment", but the content without such words does not mean that the design change is not allowed.

[Variation] Hereinafter, modifications will be described. In the drawings and descriptions of the modified examples, the same reference numerals are given to the same or equivalent components and members as those of the embodiment. The description overlapping with the embodiment is appropriately omitted, and the configuration different from the embodiment is mainly described.

In the embodiment, the example in which the blade adjustment unit 54 is controlled by the machine-side control unit 40 or the portable control unit 42 has been described, but the present invention is not limited to this. FIG. 8 is a block diagram of the registration control system 20 according to the modification, and FIG. 9 is a block diagram of the registration control system 20 according to the modification. For example, as shown in FIG. 8 , the squeegee adjusting part 54 may be provided on the machine side of the printing unit 10 , and the operator 3 may manually adjust the pneumatic valve or the handle (not shown) of the squeegee adjusting part 54 . In this configuration, the display screen shown in FIG. 6 functions as a waveform that can be used for registration error fluctuations such as confirmation after manual blade adjustment. In this configuration, as shown in FIG. 9 , the machine-side control unit 40 may not include the blade control unit 40e.

In the embodiment, the example in which the multicolor printing system 100 includes two printing units, the first printing unit 10A and the second printing unit 10B, has been described, but the present invention is not limited to this, and the multicolor printing system 100 may include n (≥3) printing units. In this case, the registration control system 20 may include (n-1) sets of the first sensor 30a and the second sensor 30b.

In the embodiment, the example in which one portable control unit 42 is used has been described, but a plurality of portable control units 42 may be used.

In the embodiment, the example in which the offset adjustment unit is provided as the registration adjustment unit 50 has been described, but the present invention is not limited to this. For example, as the registration adjustment section, a positioning adjustment roller (compensation roller) for correcting the positional relationship between the web and the plate cylinder may be provided by adjusting the position of the roller.

Arbitrary combinations of the above-described embodiments and modifications are equally effective as embodiments of the present invention. The new embodiment produced by combining has the effect of each of the combined embodiment and modification.

6A: 1st registration mark 6B: 2nd registration mark 10: Printing unit 10A: 1st printing unit 10B: 2nd printing unit 20: Register Control System 30: Registration Inspection Department 40: Machine side control unit 42: Portable Control Unit 100: Multi-color printing system

FIG. 1 is a block diagram of a multicolor printing system including a register control system according to an embodiment. Fig. 2 is a block diagram showing the function and configuration of the register control system of Fig. 1 . 3( a ) and FIG. 3( b ) are graphs showing an example of the detection results of the first registration mark detection unit and the second registration mark detection unit, respectively. 4 is a graph showing an example of a registration error waveform of the registration control system of FIG. 1 . FIG. 5 is a schematic diagram showing an example of the display of the portable control unit of FIG. 1 . FIG. 6 is a schematic diagram showing an example of the display of the portable control unit of FIG. 1 . FIG. 7 is a schematic diagram showing an example of the display of the portable control unit of FIG. 1 . [ Fig. 8] Fig. 8 is a configuration diagram of a multicolor printing system including a registration control system according to a modification. FIG. 9 is a block diagram showing the function and configuration of the register control system of FIG. 8 .

2: roll paper

3: Operator

4: Guide roller

10A(10): 1st printing unit (printing unit)

10B(10): 2nd printing unit (printing unit)

11: Plate cylinder

12: Impression cylinder

14: Unit Control Department

20: Register Control System

30: Registration Inspection Department

30a: 1st sensor

30b: 2nd sensor

40: Machine side control unit

42: Portable Control Unit

50: Register Adjustment Department

52: scraper blade

54: Scraper adjustment part

100: Multi-color printing system

Claims (6)

A registration control system, which controls the registration adjustment of a printing unit of a multi-color printing system, the registration control system includes: The machine-side control unit is a fixed control panel used to set the production conditions of the printing unit, and obtain registration information related to the registration of the printing unit; and The portable control unit is capable of acquiring and displaying the above-mentioned registration information from the above-mentioned machine-side control unit, The portable control unit is configured to be able to operate the machine-side control unit. The register control system of claim 1, wherein The portable control unit can exchange information with the machine-side control unit through wireless communication. The register control system of claim 1 or claim 2, wherein The portable control unit can perform the individual adjustment of the printing unit and the overall adjustment of the multi-color printing system. The register control system of claim 1 or claim 2, wherein The portable control unit can display the waveform generated according to the registration information. The register control system of claim 1 or claim 2, wherein The aforementioned portable control unit is capable of controlling the doctor blade adjustment of the aforementioned printing unit. The register control system of claim 1 or claim 2, wherein The portable control unit can change the adjustment parameters of the printing unit.

Images