KR102540312B1 - Device for handling and monitoring foreign matter according to electronic engraving method manufacturing of rolls for gravure printing - Google Patents

Abstract

It enables the recycling of foreign substances generated by the electronic engraving method, and at the same time, it is possible to precisely detect the foreign substances remaining on the plate along with the manufacturing accuracy of the roll by weight and optical measurement. Provides techniques that can minimize In accordance with an embodiment of the present invention, an apparatus for treating and monitoring foreign matter according to the electronic engraving method of manufacturing a roll for gravure printing uses a helio engraving method according to an external control input on the cylinder surface of the gravure roll to form cells according to patterns. electronic engraver to engrave; a suction port installed near the surface of the cylinder and the electronic engraver to suck foreign substances generated from the surface of the cylinder as a result of engraving by the electronic engraver; a filtering unit that extracts only the copper metal from foreign substances sucked in by the suction port; a reprocessing unit for processing the copper metal cast by the filtering unit into recycled copper metal; and a monitoring unit that monitors the presence or absence of foreign substances on the surface of the cylinder and transmits monitoring information to a management terminal.

Description

Foreign matter treatment and monitoring device according to electronic engraving method manufacturing of rolls for gravure printing

The present invention relates to a technique for treating foreign substances generated by an electronic engraving method among manufacturing techniques of a roll for gravure printing, and specifically, to a technique for recycling foreign substances generated by an electronic engraving method for manufacturing a gravure roll copper plate. At the same time, it relates to a technology capable of enabling precise detection of foreign substances remaining on the plate along with manufacturing accuracy of the roll by weight and light measurement, and minimizing the amount of eco-friendly ink used.

There are various methods for printing a pattern such as a certain image on a member such as a plastic film. Among them, the gravure coating method is a type of intaglio printing, which is applied to a cylindrical gravure roll having an intaglio corresponding to the pattern. It is a method of transferring ink remaining in the intaglio to the film by applying a film such as a flexible packaging material between a pressurized ink tank and a gravure roll after smearing ink and scraping off the ink in a part other than the intaglio.

The gravure printing method is widely used for printing magazines and catalog photos, especially for pattern printing on soft plastic films, because it enables micro-realization of pattern formation.

In this gravure roll printing process, the color of the image to be printed is divided into a plurality of applied basic colors (for example, 4 CMYK colors), and a high-number low-depth electronic engraving copper plate with a corresponding pattern is mounted on the gravure roll. Then, by supplying ink of the corresponding color to each gravure roll to perform printing, there is an advantage in that very high quality printing is possible. Viscosity and degree of mixing of colors are controlled through the depth of the pattern, so that very precise print quality can be obtained.

As described above, in the gravure roll printing process, a plurality of copper plates are used as a plurality of colors are printed. High number low depth copper plate can realize low depth of field, which has the effect of reducing ink consumption. In addition, in the case of ink, eco-friendly ink is used, which is very advantageous for environmental pollution by not including ethanol and the like, which are harmful substances such as toluene.

The manufacturing method of such a copper plate is largely divided into a chemical method and a physical method. As a chemical method, there is a conventional etching (corrosion) plate making method, but this method has low stability of grayscale reproduction, and recently, a physical method called helio engraving is mainly used. Helio engraving is a copper plate manufacturing device manufactured by Hell, Germany. It is a method of constructing a cell by engraving the surface of a copper plate while vibrating a diamond needle at a high frequency.

As a technology for helio engraving, for example, Korean Patent Application No. 10-2010-7018203 suggests a technique for electrochemically removing foreign substances generated during engraving, that is, helio engraving is a physical process, Since foreign matter is generated during carving, it is to remove it efficiently.

However, when foreign substances are removed from the copper plate electrochemically, harmful substances including copper metal are discharged, which adversely affects the environment, and consumption of energy and resources due to the inability to recycle copper metal is a serious problem.

In addition, since an operator visually checks whether or not foreign substances exist on the surface of the cylinder or through a task print, waste of human and physical resources required for such an inspection is pointed out as a problem.

On the other hand, when a gravure roll copper plate is manufactured along such a helio piece, there is no technology for optimizing the depth that can minimize the consumption of ink as well as the generation pattern of foreign substances.

Therefore, the present invention was derived to solve the above problems, and along with clear monitoring of foreign substances generated by the electronic engraving method, automatically processing them so that they can be recycled, and at the same time, the quality of each depth generated when monitoring them Through learning about information, it reduces resource consumption due to quality maintenance through automatic check of foreign substances remaining on the surface of copper plate, that is, copper cylinder, saving resource consumption for inspection and reducing adverse effects on the environment due to disposal of copper metal. Its purpose is to provide environmentally friendly technology that can optimize the amount of ink used in gravure roll copper plates and plate making technology.

In order to achieve the above objects, an apparatus for treating and monitoring foreign substances according to the electronic engraving method of manufacturing a roll for gravure printing according to an embodiment of the present invention, the helio engraving method is performed on the cylinder surface of the gravure roll according to a control input from the outside. An electronic engraver that engraves a cell according to a pattern by using; a suction port installed near the surface of the electronic engraver and the same cylinder to suck foreign substances generated from the surface of the cylinder as a result of being engraved by the electronic engraver; a filtering unit for extracting only the copper metal from the foreign substances sucked in by the inlet; a reprocessing unit for processing the copper metal extracted by the filtering unit into recycled copper metal; and a monitoring unit that monitors the presence or absence of foreign substances on the surface of the cylinder and transmits monitoring information to a management terminal.

It is possible that a plurality of suction ports are installed on the lower part, the lower part of the side, and the side part based on the contact surface of the electronic engraver and the surface of the same cylinder.

The monitoring unit may include: a first load sensor for sensing the weight of the foreign matter sucked through the inlet; a second load sensor for sensing the weight of the same cylinder of the gravure roll; an optical sensor for sensing a light reflection pattern on the surface of the cylinder of the gravure roll; And monitoring generating the monitoring information using printing information including printing pattern and printing depth information for the gravure roll input from the outside, and sensing data of the first load sensor, the second load sensor, and the optical sensor. It is possible to include; an information generating unit.

The monitoring information generator may include a sum of a load value of the first load sensor and a load value of the second load sensor after processing of the cylinder surface of the electronic engraver is completed and the second load before processing of the cylinder surface of the electronic engraver. When the error rate of the load value of the sensor exceeds the preset first critical rate, it is determined that the foreign matter is not recovered through the suction port, and a repair request signal for the engraving space of the electronic engraver is generated and transmitted to the management terminal. It is possible.

The monitoring information generation unit may generate a first pattern, which is a pattern of light generated from the light emitting unit of the optical sensor and incident light to the light receiving unit of the optical sensor, and a virtual image generated according to the printing pattern and printing depth information on the surface of the same cylinder. By comparing the second pattern, which is a pattern simulating the light reflection pattern for the three-dimensional model of the cylinder, if the first pattern and the second pattern do not match, foreign matter remains on the surface of the cylinder or there is a problem with the diamond needle of the electronic engraver. It is possible to generate a warning signal notifying that there is a warning signal and transmit it to the management terminal.

The monitoring information generation unit may generate a first pattern, which is a pattern of light generated from the light emitting unit of the optical sensor and incident light to the light receiving unit of the optical sensor, and a virtual image generated according to the printing pattern and printing depth information on the surface of the same cylinder. By comparing the second pattern, which is a pattern simulating the light reflection pattern of the cylinder 3D model, the first pattern and the second pattern do not match, and the initial dynamic motion derived from the specification information on the cylinder input from the external control terminal. A target load value, which is the load value of the cylinder after processing is completed according to the load information of the cylinder, the printing pattern and the printing depth information, and the load of the second load sensor after processing of the surface of the cylinder of the electronic engraving machine is completed. When the error rate of the value exceeds the second critical rate, it is possible to generate a warning signal indicating that a foreign substance remains on the surface of the cylinder or that there is a problem with the diamond needle of the electronic engraver and transmit it to the management terminal.

The monitoring information generation unit is configured to obtain data for each processing timeline of the print pattern and print depth generated according to the print pattern and print depth information and the driving information of the electronic engraving machine, and specification information for the same cylinder input from an external control terminal. According to the derived load information of the initial copper cylinder, the print pattern and the print depth are determined using the variation value function of the load information of the same cylinder for each processing timeline and the error rate of the load value of the second load sensor measured in real time. It is possible to generate and provide a foreign matter generation function with a variable value and a foreign matter generation load as an output value and provide it to a management terminal, learn the foreign matter generation function according to a plurality of printing patterns, and provide it to the management terminal.

The monitoring information generation unit may include information on the amount of ink consumed according to the printing information, the sensing data, and printing information generated during testing printing using the manufactured copper cylinder and a printing pattern for the flexible packaging material during the testing printing. Using a correlation analysis algorithm between the print quality information generated based on the matching between the print patterns included in the print information and the print pattern included in the print information, printing a minimum print depth value for each print pattern that allows the print quality information to be equal to or greater than a preset ratio. It is possible to generate depth optimization information and transmit it to the manager terminal.

The filtering unit may include a tank in which the foreign substances are stored; a leaching unit for precipitating the product by adding sulfuric acid to the tank; It is possible to include; a copper recovery unit for recovering copper by extracting copper sulfate by reacting the reaction product generated by the leaching unit with 2-hydroxy-5-nonylacetophenone oxime.

The reprocessing unit may include a heating unit that heat-treats and melts the copper metal cast by the filtering unit; and a formwork cooling unit accommodating and cooling the copper metal melted by the heating unit in an internal cavity having a predetermined shape.

According to the present invention, it is possible to completely recover foreign substances generated when processing the surface of a copper cylinder by an electronic engraving method that is sucked in air through a suction port through a filtering unit and a reprocessing unit, and extract copper metal therefrom so that it can be recycled.

In addition, by the monitoring unit, the presence or absence of the foreign matter and the quality can be managed accurately with respect to the suction of the foreign matter, the state of the surface of the cylinder, and the like.

Through this, it is an eco-friendly technology that can reduce resource consumption due to quality maintenance through automatic check of foreign substances remaining on the surface of copper plate, that is, copper cylinder, save resource consumption for inspection, and reduce adverse effects on the environment due to disposal of copper metal. There is an effect that can provide.

In addition, by learning machine learning and artificial intelligence learning algorithms using information on print quality that can be calculated during testing printing through the corresponding copper plate along with printing data and sensing data used for generating monitoring information, By generating minimum depth information capable of maintaining quality according to the present invention, there is an effect of enabling engraving of an optimal print pattern capable of minimizing the amount of ink used.

1 is a schematic configuration diagram of an apparatus for treating and monitoring foreign substances according to an electronic engraving method manufacturing a roll for gravure printing according to an embodiment of the present invention.
2 is a diagram for explaining an example of a detailed configuration of a monitoring unit according to an embodiment of the present invention;
3 to 6 are views for explaining an example in which monitoring information is generated according to each embodiment of the present invention.
Figure 7 is a view for explaining the function of the reprocessing unit according to an embodiment of the present invention.

In the following, various embodiments and/or aspects are disclosed with reference now to the drawings. In the following description, for purposes of explanation, numerous specific details are set forth in order to facilitate a general understanding of one or more aspects. However, it will also be appreciated by those skilled in the art that such aspect(s) may be practiced without these specific details. The following description and accompanying drawings describe in detail certain illustrative aspects of one or more aspects. However, these aspects are exemplary and some of the various methods in principle of the various aspects may be used, and the described descriptions are intended to include all such aspects and their equivalents.

References to “embodiment,” “example,” “aspect,” “example,” etc., used in this specification should not be construed as indicating that any aspect or design described is preferable to or advantageous over other aspects or designs. .

Also, the terms "comprises" and/or "comprising" mean that the feature and/or element is present, but excludes the presence or addition of one or more other features, elements and/or groups thereof. It should be understood that it does not.

In addition, terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

In addition, in the embodiments of the present invention, unless otherwise defined, all terms used herein, including technical or scientific terms, are those commonly understood by those of ordinary skill in the art to which the present invention belongs. have the same meaning. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the embodiments of the present invention, an ideal or excessively formal meaning not be interpreted as

1 is a schematic configuration diagram of a foreign matter treatment and monitoring apparatus according to the electronic engraving method of manufacturing a roll for gravure printing according to an embodiment of the present invention, and FIG. 2 is an example of a detailed configuration of a monitoring unit according to an embodiment of the present invention. 3 to 6 are views for explaining an example of generating monitoring information according to each embodiment of the present invention, and FIG. 7 is a view for explaining the function of a reprocessing unit according to an embodiment of the present invention. am. On the other hand, in the following description, although some components are omitted or excessively enlarged or reduced in order to explain the function of each component of the present invention, the matters described in the drawings represent the technical features and rights of the present invention. It will be understood that it is not intended to limit the scope.

In addition, in the following description, a plurality of drawings will be described with reference to one technical feature or component constituting the invention at the same time.

Referring to the above drawings together, the foreign matter treatment and monitoring device (hereinafter referred to as 'the device of the present invention') according to the electronic engraving method manufacturing of the roll for gravure printing according to an embodiment of the present invention is an electronic engraving machine (2 ), a suction port 10, a filtering unit 20, a reprocessing unit 30, and a monitoring unit 100.

The electronic engraver 2 is a device for engraving cells on the copper cylinder 1 used for the gravure roll by helio engraving, that is, the electronic engraving method. In the present invention, as shown in FIG. 1, the electronic engraver 2 is a helio It will be understood in a narrow sense referring to the diamond needle and its driving body in the engraving device. However, generally, the electronic engraver 2 refers to the helio engraving device itself.

In the gravure printing method, a positive image film of continuous tone, drawing line, and halftone gradation is made from text or photo manuscripts, and the characters or photos are laid out and then plated in the second half of the process. In the later photolithography process, it is handled at the same level as the photolithography process of offset flatbed. In the printing process, preparations for letters, illustrations, color photos, manuscript plates, and designs are computerized like offset flatbed. However, the latter process can be largely classified into a chemical corrosion method and a mechanical engraving method.

Conventional gravure plate is a source technology of gravure plate making, and this method is a method that applies each chemical etching method. By corroding the metal surface, the drawing line is made deep and light, and the ink is transferred, and the film thickness of the ink is reduced. It is a way to express gradation with .

The dotted gravure plate was devised as a means to solve the combination of the unstable corrosion process of the conventional method, and started with the gravure plate making method devised by Mertens and Reich in Germany around 1910 to stabilize the corrosion process of conventional gravure.

The electronic engraving gravure plate (helioclisograph) is a method that has recently been proposed, and image-processed information by a total scanner is input to a gravure printing plate device, and concave cells are processed on the plate surface. The direct printing plate manufacturing method of the gravure printing plate includes a mechanical plate making method such as Hell's Helio Clishaw Grafwa System from Germany, Crossfield's Laser 700 from England, and a chemical plate after cylinder firing method such as Japan's Sink Laboratories' Laser Stream. etc.

The double helio clichograph, that is, helio engraving, is that the entire process is computer managed, and the copper surface is mechanically vibrated on the surface of the copper cylinder about 4,000 times per second using a diamond needle by an electric signal to engrave the cell. Compared to the conventional plate making method, it has excellent stability of gradation reproduction, and it is possible to manufacture a gravure roll copper plate, dramatically reducing the consumption of existing ink when used with eco-friendly ink, while improving print quality and Environmentally friendly technological effects can be expected by using eco-friendly ink.

As described above and shown in FIG. 2, the electronic engraving machine 2 engraves a desired cell pattern by vibrating the diamond needle 2-1 at thousands of hertz by the driver.

That is, the electronic engraver 2 of the present invention uses the helio engraving method according to the control input from the outside or the control unit including the computing device 100 on the surface of the cylinder 1 of the gravure roll according to the pattern. Refers to a device that engraves cells.

As described above, in the present invention, the electronic engraver 1 is a helio engraver, and when receiving an image of a printed pattern from the outside, the engraving target pattern on the surface of the cylinder 1 for realizing the corresponding pattern by printing and Depth, width, etc. may be automatically determined and stored as data. At this time, it will be understood that the image of the print pattern refers to the image of the print pattern for each color when the colors included in the entire print pattern are divided into a plurality of single colors.

The suction port 10 is installed near the surface of the electronic engraver 2 and the cylinder 1, and refers to a structure that sucks foreign substances generated from the surface of the cylinder 1 as a result of engraving by the electronic engraver 2. do. Specifically, the suction port 10 refers to a plurality of suction hoppers 11, 12, and 13, and a suction fan 14 may be connected or included in the configuration of the suction port 10 to provide a suction force for foreign substances.

As shown in FIG. 1, the suction port 10 is specifically a foreign substance containing copper powder, and in order to collect foreign substances generated by the engraving process between the electronic engraver 2 and the surface of the copper cylinder 1, the suction fan (14) may include a plurality of suction hoppers 11, 12, and 13 having a wide inlet to suck foreign substances in an air suction method.

At this time, considering the falling characteristics of the foreign matter due to gravity, the suction port 10, more precisely, the suction hoppers 11, 12, and 13, as shown in FIG. It would be preferable to install a plurality of lower, lower and side parts based on, but the installation location and number would not be limited thereto.

The filtering unit 20 performs a function of extracting only copper metal from foreign substances sucked in by the suction port 10 . Most foreign substances generated through the friction and engraving process of the surfaces of the electronic engraver 2 and the copper cylinder 1 will be made of copper metal, but may include foreign substances such as fine dust. The copper cylinder (1) used for gravure roll printing must be made of 99% or more high-purity copper. In order to use the foreign substance in the copper cylinder (1) or other products made of copper metal, very high purity copper metal must be used. It needs to be extracted from foreign matter.

To this end, in the present invention, the filtering unit 20 may be configured to include, for example, a tank in which foreign substances fall from the inlet 10 and are stored, a leaching unit, and a copper recovery unit.

The leaching unit is specifically step S1 of FIG. 7 , and performs a function of precipitating and dropping a product produced by adding sulfuric acid to a foreign material. On the other hand, the copper recovery unit is a step S2 of FIG. 7, and has a function of recovering copper by extracting copper sulfate by reacting the reaction product generated as the leaching unit performs the function by step S1 with 2-hydroxy-5-nonylacetophenone oxime. carry out

In this case, the step S1 may include a pulverization step of pulverizing the reactant flowing into the tank through the smelting converter slag, and a leaching step of leaching the product by adding sulfuric acid to the product generated through the pulverization step.

Step S2 includes a copper recovery step of recovering copper by reacting the reactant produced by the leaching unit with 2-hydroxy-5-nonylacetophenone oxime to extract copper sulfate, and then, copper sulfate is extracted through the copper recovery step. and the remaining reactants can be discarded.

온도로 가열하여 생성물을 침출시키도록 할 수 있다.At this time, in the above-described leaching step, sulfuric acid is added to the product generated through the grinding step and 150 to 200 at a pressure of 15 to 25 atm.

It can be heated to a temperature to leach out the product.

의 온도에서 증발 농축시켜 황산구리를 추출하여 구리를 회수하도록 할 수 있다.On the other hand, in the above-described copper recovery step, the reaction product generated by the leaching unit is reacted with 2-hydroxy-5-nonylacetophenone oxime, and 50 to 100

By evaporating and concentrating at a temperature of , copper sulfate can be extracted to recover copper.

Through this, only high-purity copper metal is accurately recovered and supplied to the reprocessing unit in an environment where substances other than copper metal may be mixed to reduce the purity of copper metal, so that very high-purity recyclable copper metal can be utilized from foreign substances. It works.

Meanwhile, the reprocessing unit 30 processes the copper metal cast by the filtering unit 20 and processes it into recycled copper metal. Specifically, the reprocessing unit 30 may have a small furnace and a formwork structure to process the extracted copper metal into a certain size, thereby increasing convenience in manufacturing a copper metal product thereafter.

Specifically, the reprocessing unit 30 includes a heating unit that heat-treats and melts the copper metal cast by the filtering unit 20. The heating temperature of the heating unit is preferably set to be at least higher than the melting point of the copper metal. In addition, a formwork cooling unit may be included to cool the copper metal melted by the heating unit by accommodating it in an internal cavity having a predetermined shape. The formwork cooling unit may be configured to include a formwork including an inner cavity configured to be openable and closed and having an airtight structure when closed, and an air-cooled or water-cooled cooler that cools the formwork outside the formwork.

Through this, when foreign substances are collected, high-purity copper metal is processed into products such as cubic of a certain size and discharged. Compared to simply collecting and recycling foreign substances, the characteristics of the electronic engraver (2) have many characteristics that foreign substances exist in the form of powder. On top of that, there is an effect that the volume is greatly reduced and the convenience of transportation is greatly increased compared to when the foreign matter is collected in the form of powder.

The monitoring unit 100 performs a function of generating monitoring information by monitoring information on the presence or absence of foreign substances on the surface of the cylinder 1 and transmitting the monitoring information to the management terminal 300 .

In the above description, the identification number 100 has been described as denoting a computing device, because the monitoring unit 100 can be implemented as a component included in a computing device as shown in FIG. 1 . The computing device controls a plurality of components including the electronic engraver 2, the suction fan 14, the filtering unit 20, and the reprocessing unit 30, or a plurality of sensors 41, 42, and 43 included in the monitoring unit. ), etc., or may be understood as a control unit for performing a function of transmitting power and control input to a sensor. Accordingly, it is preferable that the monitoring unit is implemented to be included in the above-described computing device. Of course, the monitoring unit may be understood to refer to a monitoring information generation unit to be described later in a narrow sense, and the computing device 100 includes a monitoring information generation unit, and the monitoring unit includes a plurality of sensors 41, 42, 43, etc. It can be understood that this is included.

Referring to FIGS. 1 and 2 in detail as described above, the monitoring unit includes a first load sensor 43, a second load sensor 42, and an optical sensor 41, and the monitoring information generating unit 44 It may be included as a component included in the computing device 100 .

As shown in FIG. 2 , the first load sensor 43 is installed in the above-described tank included in the filtering unit 20 to sense the weight of foreign substances collected in the filtering unit 20 before copper is recovered. perform a function The second load sensor 42 is installed on a shaft that supports and rotates the cylinder 1, and senses the weight of the cylinder 1.

The optical sensor 41 performs a function of sensing a light reflection pattern on the surface of the copper cylinder 1 of the gravure roll. To this end, as shown in FIG. 4 , the optical sensor 41 may be configured to include a light emitting unit 411 and a light receiving unit 412. (1) It can be installed to sense the light reflection pattern of the surface.

The monitoring information generation unit 44 includes print information including print pattern and print depth information on the gravure roll input from the outside, a first load sensor 43, a second load sensor 42, and an optical sensor 41 It performs a function of generating monitoring information using the sensing data of . A specific functional embodiment of the monitoring information generation unit 44 is as follows.

[First Embodiment]

In the first embodiment, the monitoring information generation unit 44 monitors the existence of foreign substances and the performance of each component using only the sensing values of the first and second load sensors 43 and 42 .

Specifically, as shown in FIG. 3 , the monitoring information generating unit 44 calculates the load value W1T2 of the first load sensor 43 after processing of the surface of the cylinder 1 of the electronic engraver 2 is completed. The sum of the load values (W2T2) of the second load sensor 42 and the load value (W2T1) of the second load sensor before machining on the cylinder surface are received at each timing.

Then, the error rate (D1) of W1T2+W2T2 and W2T1 is calculated. This means that if the foreign matter is normally dropped and collected, the weight of the cylinder (1) at the beginning, the weight of the cylinder (1) after processing is completed, and the weight of the foreign matter because it must be the sum of

At this time, when the absolute value of the error rate (W1T2+W2T2-W2T1)/(W2T1) exceeds the first preset critical rate, it is determined that the foreign matter is not recovered through the suction port 10, and the electronic A maintenance request signal SA1 for the engraving space of the engraver 2 may be generated and transmitted to the management terminal 300 .

Specifically, if the absolute value of the critical rate exceeds the first critical rate (for example, 2%) and the corresponding value is a positive value, it means that too much foreign matter has been collected, so it is a copper metal foreign matter that is fragmented and discharged. In addition, other foreign substances are sucked in, and it is determined that a large number of other foreign substances are seriously introduced into the sculpture space, and information about this may be generated as monitoring information. On the other hand, if the value is negative, it means that the foreign matter is not properly sucked in, which means that there is a problem with the operation of the suction fan 14 or a bad position of the suction port 10. It can be created as monitoring information.

[Second Embodiment]

In the second embodiment, the monitoring information generation unit 44 monitors the existence of foreign substances and the performance of each component using sensing data of the optical sensor 41 .

Specifically, as shown in FIG. 4 , the monitoring information generating unit 44 includes a first pattern (a pattern of light generated from the light emitting unit 411 of the optical sensor and light incident on the light receiving unit 412 of the optical sensor) ( P2) and a second pattern (which is a pattern simulated by a simulator of a light reflection pattern for a virtual three-dimensional model (3D image) of a virtual copper cylinder generated according to the printed pattern on the surface of the cylinder 1 and the print depth information ( P1) will be compared.

The second pattern P1 means a sensing value of the optical sensor 41 that should ideally be recognized when the cylinder 1 is processed normally or when there is no foreign matter on the surface of the processed cylinder 1. . Accordingly, when error data D2 indicating that the actually specified light reflection patterns P2 and P1 do not match is generated, foreign matter remains on the surface of the cylinder 1 or a problem occurs with the diamond needle of the electronic engraver 2. A warning signal SA2 indicating that there is presence may be generated and transmitted to the management terminal 300 .

[Third Embodiment]

In the third embodiment, the monitoring information generation unit 44 determines the presence of foreign substances and functions of each component using sensing data of the first and second load sensors 43 and 42 and the optical sensor 41. carry out monitoring.

Specifically, as shown in FIGS. 4 and 5, the first pattern P2, which is a pattern of light generated from the light emitting unit 411 of the optical sensor and incident light to the light receiving unit 412 of the optical sensor, and the same cylinder (1) A second pattern P1, which is a pattern simulating a light reflection pattern for a virtual copper cylinder 3D model generated according to the printed pattern on the surface and the printed depth information, is compared, and the first pattern and the second pattern are compared. determine whether this is inconsistent. That is, it is determined whether error data D2 is generated in FIG. 4 .

Thereafter, load information of the initial copper cylinder 1 derived from specification information I1 of the cylinder 1 input from an external control terminal (for example, the computing device 100), print pattern and print depth information Therefore, after the machining is completed, the target load value, which is the load value of the same cylinder, is compared with the load value (W2T2) of the second load sensor 41 after the machining of the cylinder surface of the electronic engraver 2 is completed.

At this time, when the error rate between the target load value and the load value (W2T2) exceeds the preset second critical rate (for example, 2%), foreign substances remain on the surface of the cylinder 1 or the diamond needle of the electronic engraver 2 A warning signal SA3 indicating that there is a problem may be generated and transmitted to the management terminal 300 . That is, the third embodiment accurately determines whether there is a processing problem through a plurality of verification steps more than the second embodiment.

[Fourth Embodiment]

The fourth embodiment can be understood as an embodiment for identifying processing problems in real time in the above-described third embodiment.

Specifically, as shown in FIG. 6 , the monitoring information generation unit 44 calculates data for each processing timeline of the print pattern and print depth generated according to the print pattern and print depth information and the driving information of the electronic engraver 2. It is received from the device 100 and stored. Thereafter, the load information of the initial copper cylinder derived from the specification information of the cylinder included in the data I2 input from the external control terminal (for example, the computing device 100) is stored.

Then, using the stored information and data, the variation value function (Ft(W)) of the load information of the cylinder for each processing timeline is derived. Then, the error of the load value of the cylinder 1 measured by the second load sensor 42 in real time together with the corresponding function (Ft(W)) is calculated for each timeline. Using the error rate generated accordingly, , a foreign matter generation function F(I) having a print pattern and a print depth as variable values, and a foreign matter generation load as an output value is generated and provided to the management terminal 300 .

Since this foreign matter generation function (F(I)) can determine the generation of foreign matter over time and the change in whether or not it remains on the surface of the cylinder 1, whether the foreign matter should be sucked more strongly or not according to the print pattern, etc. Accordingly, it is possible to determine whether to check foreign substances with the naked eye or whether foreign substances should be more strongly washed before chrome and nickel plating according to the printed pattern after processing of the cylinder 1.

At this time, the monitoring information generation unit 44 may provide a more general-purpose foreign matter generation function F(I). In other words, it can be provided to the management terminal 300 by learning the corresponding function according to various patterns to be printed or even in the same pattern to be printed multiple times in processing.

The first to fourth embodiments are used independently or in combination with each other to determine whether or not foreign substances remain on the surface of the cylinder 1, the generation of foreign substances, the driving life and normal operation of the diamond needle 2-1. Information may be provided to the management terminal 300 by integrally monitoring whether or not the copper plate is manufactured, the quality of manufacture of the copper plate, and the performance of inhaling foreign substances.

On the other hand, in addition to the above functions, the monitoring information generation unit 44 minimizes the amount of ink used while maintaining print quality when the electronic engraver 2 engraves a pattern for the cylinder 1, thereby providing an optimal copper cylinder. (1) Engraving can be made possible.

For example, in order to perform the above function, the monitoring information generation unit 44 provides information on the amount of ink consumed according to printing information, sensing data, and printing information generated during testing printing using the produced cylinder, and Using a correlation analysis algorithm between the print quality information generated based on the degree of agreement between the print pattern of the flexible packaging material during testing printing and the print pattern included in the print information, the print quality information is at least a predetermined ratio. A minimum print depth value for each print pattern may be generated as print depth optimization information and transmitted to the manager terminal 300 .

For example, when generating the print quality information that can be obtained during testing printing on a flexible packaging material in a state where engraving on the same cylinder is completed, the corresponding function is combined with the print information and sensing data and stored as learning data in the database. Then, the relationship between the print quality information and the depth is analyzed using a correlation analysis algorithm such as Pearson's correlation analysis for the learning data.

Then, in order to ensure that the print quality information, that is, the coincidence is greater than or equal to a predetermined ratio (for example, 99.5%), the minimum value of the print depth for each print pattern derived by analyzing the learning data for a plurality of cylinders 1 is determined. derive In this case, the minimum value of the depth for each print pattern may be managed in a form of matching the minimum value of the depth to the width, curvature, color, etc. of each print pattern.

Thereafter, when an engraving request for a specific print pattern is received as print data, a plurality of print patterns included in the print data are derived, and the minimum value of the print depth matched to the derived print pattern is combined to form the entire cylinder (1). Print depth optimization information for may be transmitted to the manager terminal 300 . Accordingly, it is possible to provide optimal plate making information capable of minimizing the amount of ink consumed by minimizing the depth of the gravure roll copper plate while maintaining high quality printing for each print pattern.

As described above, although the embodiments have been described with limited examples and drawings, those skilled in the art will understand that various modifications and variations are possible from the above description. Terms such as "comprise", "comprise", or "having" described above mean that components that are not specifically stated to the contrary may be inherent, so other components are not excluded but other components are included. It should be interpreted as being more inclusive. In addition, the protection scope of the present invention should be construed according to the claims below, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

Claims (10)

An electronic engraver that engraves a cell according to a pattern on the surface of the cylinder of the gravure roll using a helio engraving method according to an external control input;
a suction port installed near the surface of the electronic engraver and the same cylinder to suck foreign substances generated from the surface of the cylinder as a result of being engraved by the electronic engraver;
a filtering unit for extracting only the copper metal from the foreign substances sucked in by the inlet;
a reprocessing unit for processing the copper metal cast by the filtering unit into recycled copper metal; and
A monitoring unit that monitors the existence of foreign substances on the surface of the cylinder and transmits monitoring information to a management terminal;
The monitoring unit,
a first load sensor for sensing the weight of the foreign matter sucked through the inlet;
a second load sensor for sensing the weight of the same cylinder of the gravure roll;
an optical sensor for sensing a light reflection pattern on the surface of the cylinder of the gravure roll; and
Monitoring information for generating the monitoring information using printing information including printing pattern and printing depth information for the gravure roll input from the outside, and sensing data of the first load sensor, the second load sensor, and the optical sensor A foreign matter treatment and monitoring device according to the electronic engraving method manufacturing of a roll for gravure printing, characterized in that it comprises a; generating unit.
According to claim 1,
The inlet is
Foreign matter treatment and monitoring device according to the electronic engraving method manufacturing of the roll for gravure printing, characterized in that a plurality of installed on the lower, lower and side parts based on the contact surface of the electronic engraver and the cylinder surface.
delete According to claim 1,
The monitoring information generation unit,
Error rate between the sum of the load value of the first load sensor and the load value of the second load sensor after processing of the cylinder surface of the electronic engraver is completed and the load value of the second load sensor before processing of the same cylinder surface When the predetermined first critical rate is exceeded, it is determined that the foreign matter is not recovered through the suction port, and a maintenance request signal for the engraving space of the electronic engraver is generated and transmitted to the management terminal. Gravure, characterized in that A device for handling and monitoring foreign matter according to electronic engraving method manufacturing of printing rolls.
According to claim 1,
The monitoring information generation unit,
A first pattern, which is a pattern of light generated from the light emitting unit of the optical sensor and incident light to the light receiving unit of the optical sensor, and a virtual copper cylinder 3D model generated according to the printed pattern and printing depth information on the surface of the copper cylinder By comparing the second pattern, which is a pattern simulating the light reflection pattern for the object, when the first pattern and the second pattern do not match, a warning signal indicating that a foreign substance remains on the surface of the cylinder or there is a problem with the diamond needle of the electronic engraving machine Foreign matter treatment and monitoring device according to the electronic engraving method manufacturing of the roll for gravure printing, characterized in that for generating and transmitting to the management terminal.
According to claim 1,
The monitoring information generation unit,
A first pattern, which is a pattern of light generated from the light emitting unit of the optical sensor and incident light to the light receiving unit of the optical sensor, and a virtual copper cylinder 3D model generated according to the printed pattern and printing depth information on the surface of the copper cylinder Comparing the second pattern, which is a pattern simulating the light reflection pattern for the first pattern and the second pattern, is inconsistent,
The target load value, which is the load value of the cylinder after processing is completed according to the load information of the initial copper cylinder derived from the specification information of the cylinder input from the external control terminal, the print pattern and the print depth information, and the electronic engraver When the error rate of the load value of the second load sensor after the processing of the surface of the copper cylinder is completed exceeds the second predetermined critical rate, foreign matter remains on the surface of the cylinder or there is a problem with the diamond needle of the electronic engraver. An apparatus for treating and monitoring foreign matter according to the electronic engraving method of manufacturing a roll for gravure printing, characterized in that for generating a warning signal to inform and transmitting it to the management terminal.
According to claim 1,
The monitoring information generation unit,
Data for each processing timeline of the print pattern and print depth generated according to the print pattern and print depth information and the driving information of the electronic engraving machine, and the initial copper cylinder derived from specification information on the copper cylinder input from an external control terminal. According to the load information, the printing pattern and the printing depth are set as variable values using the variation value function of the load information of the same cylinder for each processing timeline and the error rate of the load value of the second load sensor measured in real time, and the foreign matter Generating a foreign matter generation function having a generated load as an output value and providing it to a management terminal;
The foreign matter treatment and monitoring device according to the electronic engraving method manufacturing of the roll for gravure printing, characterized in that the foreign matter generation function is learned according to a plurality of printing patterns and provided to the management terminal.
According to claim 1,
The monitoring information generation unit,
Included in the printing information, the sensing data, information on the amount of ink consumed according to the printing information generated during testing printing using the manufactured copper cylinder, and the printing pattern for the flexible packaging material during the testing printing and the printing information By using a correlation analysis algorithm between print quality information generated based on the degree of correspondence between the printed patterns, a minimum value of print depth for each print pattern that makes the print quality information equal to or greater than a predetermined ratio is generated and transmitted to the management terminal. Foreign matter treatment and monitoring device according to the electronic engraving method manufacturing of rolls for gravure printing, characterized in that.
According to claim 1,
The filtering unit,
a tank in which the foreign matter is stored;
a leaching unit for precipitating the product by adding sulfuric acid to the tank; and
A copper recovery unit for recovering copper by extracting copper sulfate by reacting the reaction product generated by the leaching unit with 2-hydroxy-5-nonylacetophenone oxime; Electronic engraving method manufacturing of rolls for gravure printing comprising a Foreign matter treatment and monitoring device according to.
According to claim 1,
The reprocessing department,
a heating unit that heat-treats and melts the copper metal cast by the filtering unit; and
A mold cooling unit for accommodating and cooling the copper metal melted by the heating unit in an internal cavity having a predetermined shape; foreign material treatment and monitoring device according to electronic engraving method manufacturing of rolls for gravure printing, characterized in that it comprises a.

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