CN109298736B - Automatic control system for viscosity of printing ink - Google Patents
Automatic control system for viscosity of printing ink Download PDFInfo
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- CN109298736B CN109298736B CN201811312787.XA CN201811312787A CN109298736B CN 109298736 B CN109298736 B CN 109298736B CN 201811312787 A CN201811312787 A CN 201811312787A CN 109298736 B CN109298736 B CN 109298736B
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- ink
- viscosity
- solvent
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- central control
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D24/00—Control of viscosity
- G05D24/02—Control of viscosity characterised by the use of electric means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/005—Ink viscosity control means
Abstract
The invention discloses an automatic ink viscosity control system, which comprises a plurality of detection parts and a central control cabinet, wherein the detection parts are arranged in an ink barrel filled with ink to be detected and used for detecting the ink viscosity value, and the central control cabinet is connected with all the detection parts and used for controlling a solvent to be added into the ink barrel to adjust the ink viscosity; the interior of the central control cabinet is provided with a calculation part capable of calculating to obtain the ink viscosity value, a comparison part connected with the calculation part and used for comparing the viscosity value with a preset viscosity value to obtain a comparison result, and a control part used for receiving the comparison result and controlling a solvent to be added to the ink barrel when the viscosity value is larger than the preset viscosity value. The control system can synchronously complete viscosity measurement and viscosity adjustment, and can simultaneously control the viscosity of the printing ink on the whole production line through the automatic and integrated printing ink control system, so that the yield of printed products can be improved, the labor intensity is reduced, and the production efficiency is improved.
Description
Technical Field
The invention relates to the technical field of control systems, in particular to an automatic ink viscosity control system.
Background
At present, the viscosity control of gravure ink is a very critical problem in the gravure printing process, and particularly in the high-speed rotogravure printing process, the printing viscosity control of the ink is proper and is directly related to most quality problems such as pigment, dirty plate, gloss and brightness of printed products, pigment bonding firmness, static electricity and the like, so that the finished product rate of the printed products and the production efficiency of the printed products are influenced. Therefore, during gravure printing, the ink viscosity should be controlled well to ensure print quality.
In the prior art, the viscosity of gravure ink is still measured by manually holding a measuring cup by hand, and the measuring process needs to be carried out by holding the measuring cup by one hand and holding a stopwatch by one hand. However, when the ink viscosity is manually detected, human factors (such as personal experience, ability, and state) often affect the detection result, which finally causes large deviation of the detection data, thereby affecting the printing quality; furthermore, the labor intensity of the workers is high, and generally 7 color sets of an intaglio printing press are required, and the factory generally requires that the viscosity of the ink is measured and recorded once per hour for each color set, so that the time spent on adding the ink, measuring the viscosity, adjusting, verifying and recording for each color set must be controlled within 8 minutes, which results in the over-labor intensity of the field workers.
Therefore, how to avoid the reduction of production efficiency caused by manually controlling the viscosity of the ink is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide an automatic control system for ink viscosity, which can effectively solve the problem of low production efficiency caused by manual control of ink viscosity, can synchronously complete viscosity measurement and viscosity adjustment, and can simultaneously control the viscosity of ink on the whole production line through an automatic and integrated ink control system, thereby improving the yield of printed products, reducing labor intensity and improving production efficiency.
In order to achieve the purpose, the invention provides an automatic ink viscosity control system, which comprises a plurality of detection parts and a central control cabinet, wherein the detection parts are arranged in an ink barrel filled with ink to be detected and used for detecting the ink viscosity, the central control cabinet is connected with all the detection parts and used for controlling a solvent to be added into the ink barrel to adjust the ink viscosity, the number of the ink barrels is multiple, and the detection parts sequentially and correspondingly detect the ink barrels; the inside of well accuse cabinet is equipped with the operation portion that can calculate and obtain the printing ink viscosity number, with operation portion is connected and is used for comparing the viscosity number with preset viscosity number in order to obtain the comparison result's comparison portion and be used for receiving the comparison result and control the solvent and add the control division to the printing ink bucket when the comparison result is that the viscosity number is greater than preset viscosity number.
Preferably, all the detection portions include a first detection member located below for triggering vibration to generate an acoustic wave signal, and a second detection member connected to the first detection member for converting the acoustic wave signal into an electrical signal and transmitting the electrical signal to the operation portion.
Preferably, the first detection part comprises an elastic sheet, an ultrasonic transmitter for transmitting ultrasonic waves to trigger the elastic sheet to vibrate, and an ultrasonic receiver which is at the same height as the ultrasonic transmitter and is used for receiving sound wave signals of the elastic sheet.
Preferably, the second detection member is embodied as a sensor member.
Preferably, the detection device further comprises a plurality of wire holders which are in one-to-one correspondence with the detection parts and connected with the detection parts, and are used for connecting the detection parts with the central control cabinet in a wiring manner; the central control cabinet is connected with the wire holder through a communication line, and the detection part is connected with the wire holder through an explosion-proof connector.
Preferably, the device further comprises a flow control valve which is arranged on the wire holder and used for controlling the flow of the solvent.
Preferably, the first detection part is connected with the flow control valve through a solvent flow guide pipe.
Preferably, the system further comprises a conveying pipeline connected with a solvent barrel filled with the solvent and used for conveying the solvent, and a valve connected with the central control cabinet and used for controlling the on-off of the conveying pipeline, wherein the flow control valve is connected with the tail end of a branch of the conveying pipeline.
Preferably, the liquid level monitoring box is connected with the central control cabinet and used for monitoring the liquid level of the solvent barrel.
Preferably, the central control cabinet is further provided with an alarm indicator lamp positioned above and used for alarming, an operation touch screen positioned below the alarm indicator lamp and used for adjusting a preset viscosity value, and a switch used for controlling the central control cabinet to be opened and closed.
Compared with the background technology, the automatic ink viscosity control system is designed according to different requirements of gravure ink viscosity control in gravure printing. Because the solvent in the gravure ink has a volatilization function, the viscosity of the gravure ink increases along with the volatilization of the solvent as time goes on, the gravure ink with higher viscosity has a plurality of adverse effects on the gravure printing of high-speed rotation, so that the yield of printed products is reduced sharply, and in the process of manually controlling the viscosity of the ink, the production efficiency is reduced due to larger deviation of labor intensity, so that a control system capable of automatically controlling the viscosity of a plurality of groups of inks simultaneously is necessary.
Specifically, the automatic ink viscosity control system comprises a plurality of detection parts and a central control cabinet, wherein when the viscosity of the ink to be detected is detected, the detection parts are arranged in an ink barrel filled with the ink to be detected and are used for detecting the viscosity of the ink; the central control cabinet is connected with the detection part, and the central control cabinet can control the solvent to be added into the ink barrel so as to adjust the viscosity of the ink; the central control cabinet is internally provided with a calculation part, a comparison part and a control part; wherein, the operation portion can obtain the viscosity number of the ink that awaits measuring through the operation, compares the portion and is connected with the operation portion and can compare the viscosity number with preset viscosity number and obtain the comparison result, furtherly, the control division is connected with the comparison portion and can receive the comparison result to when the comparison result is that the viscosity number of actual measurement is greater than preset viscosity number, the control division can control the solvent and add to the ink that awaits measuring, thereby reduce the viscosity of the ink that awaits measuring. Therefore, the control system effectively solves the problem of low production efficiency caused by manual control of the viscosity of the printing ink, can synchronously complete the measurement of the viscosity and the adjustment of the viscosity, and can simultaneously control the viscosity of the printing ink on the whole production line through an automatic and integrated printing ink control system, thereby improving the yield of printed products, reducing the labor intensity and improving the production efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an automatic ink viscosity control system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the detecting part in FIG. 1;
fig. 3 is an exploded view of the sensing part of fig. 2.
Wherein:
1-detection part, 2-solvent guide pipe, 3-wire holder, 4-explosion-proof joint, 5-flow control valve, 6-communication line, 7-central control cabinet, 8-alarm indicator lamp, 9-operation touch screen, 10-switch, 11-first detection part, 12-second detection part, 13-liquid level monitoring box, 14-conveying pipeline, 15-valve, 111-ultrasonic transmitter, 112-elastic sheet, 113-ultrasonic receiver, 114-baffle plate and 115-height adjusting frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the invention is to provide an automatic control system for the viscosity of the printing ink, which can effectively solve the problem of low production efficiency caused by manual control of the viscosity of the printing ink, can synchronously complete the measurement of the viscosity and the adjustment of the viscosity, and can simultaneously control the viscosity of the printing ink on the whole production line through an automatic and integrated printing ink control system, thereby improving the yield of printed products, reducing the labor intensity and improving the production efficiency.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
It should be noted that the terms "above" and "below" are defined based on the drawings.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an automatic ink viscosity control system according to an embodiment of the present invention; FIG. 2 is a schematic structural view of the detecting part in FIG. 1; fig. 3 is an exploded view of the sensing part of fig. 2.
The automatic ink viscosity control system provided by the embodiment of the invention comprises a plurality of detection parts 1 and a central control cabinet 7, wherein a plurality of ink barrels are provided, the detection parts 1 sequentially and correspondingly detect the ink barrels, when the viscosity of ink to be detected is detected, the detection parts 1 are arranged in the ink barrels filled with the ink to be detected, and the detection parts 1 are used for detecting the viscosity of the ink; all detection parts 1 all link to each other with central control cabinet 7, and central control cabinet 7 can be according to operating condition control solvent and add to ink barrel in order to adjust printing ink viscosity.
Specifically, the center control cabinet 7 is internally provided with a calculation part, a comparison part and a control part; wherein, the operation portion can receive the signal that detection portion 1 surveyed and obtain the viscosity number of the printing ink that awaits measuring through this signal of operation, the comparison portion is connected with the operation portion and can compare the viscosity number with preset viscosity number and draw the comparison result, the control division is connected with the comparison portion and can receive the comparison result, and when the comparison result is that actual measurement's viscosity number is greater than preset viscosity number, the control division can control the solvent and add to the printing ink that awaits measuring, thereby reduce the viscosity of the printing ink that awaits measuring, otherwise, if actual measurement's viscosity number is less than preset viscosity number, then do not add the solvent to the printing ink.
Therefore, the control system can synchronously complete the measurement of viscosity and the adjustment of viscosity, and can simultaneously control the viscosity of ink in the ink bucket on the whole production line through the automatic and integrated ink control system, thereby greatly improving the production efficiency.
In the embodiment of the present invention, all the detection portions 1 include a first detection component 11 and a second detection component 12, wherein the first detection component 11 is located below the detection portions 1, the first detection component 11 can trigger vibration by using its own structure, so as to generate an acoustic wave signal, the second detection component 12 is connected to the first detection component 11, the second detection component 12 can convert the acoustic wave signal into an electrical signal and transmit the electrical signal to the operation portion of the central control cabinet 7, and then the next step is continued, so as to facilitate the operation portion to calculate the ink viscosity value.
Specifically, the first detection member 11 includes an ultrasonic transmitter 111, an elastic piece 112, and an ultrasonic receiver 113; the ultrasonic transmitter 111 can transmit ultrasonic waves to cause the elastic sheet 112 to vibrate, the elastic sheet 112 can generate a sound wave signal in the vibration process, and at the moment, the ultrasonic receiver 113 which is at the same height position as the ultrasonic transmitter 111 can receive the sound wave signal of the vibration of the elastic sheet 112; in addition, the detecting part 1 further includes a height adjusting bracket 115 provided on the second detecting part 1, and the height adjusting bracket 115 may facilitate adjustment of the detecting position.
It should be noted that the operation of the first detecting element 11 is performed in the ink to be detected, when the ultrasonic wave is generated by the ultrasonic wave emitter 111 to cause the elastic sheet 112 to vibrate, the elastic sheet 112 in the ink fluid is hindered by the fluid when vibrating, and the magnitude of the hindrance is closely related to the viscosity of the fluid; therefore, the acoustic signal received by the ultrasonic receiver 113 can reflect the viscosity of the ink.
Of course, according to actual needs, the second detecting component 12 may be configured as a sensor component, for example, the sensor may be configured as an impedance transformation type acoustic wave sensor, the impedance transformation type acoustic wave sensor includes a resistance wire strain gauge or a semiconductor strain gauge and a diaphragm for sensing the action of sound pressure, the strain gauge is pasted on the diaphragm, when the sound pressure acts on the diaphragm, the diaphragm deforms, so that the impedance of the strain gauge changes, the detecting circuit outputs a voltage signal, and thus the conversion from sound to electricity can be completed; in addition, the second detecting member 12 can be provided as other types of sensors, and the working principle of the different types of sensors can refer to the related technical requirements of the existing part, and will not be expanded here.
More specifically, the automatic ink viscosity control system further comprises a plurality of wire holders 3, the wire holders 3 are located above the detection part 1, the wire holders 3 are connected with the detection part 1 in a one-to-one correspondence manner, and the wire holders 3 are used for connecting the detection part 1 with the central control cabinet 7 in a wiring manner; wherein, well accuse cabinet 7 is connected with used connection terminal 3 through communication line 6, and detection portion 1 is connected with connection terminal 3 through explosion-proof joint 4, for example, explosion-proof joint 4 specifically can set up to the explosion-proof joint of sensor, can accomplish well accuse cabinet 7 and detection portion 1's circular telegram like this and be connected to can further guarantee well accuse cabinet 7 and the stability and the security of detection portion 1 wiring.
In order to meet the function of adding the solvent into the ink barrel in time by the system, the solvent barrel can be arranged on one side of the central control cabinet 7, a conveying pipeline 14 is arranged below the solvent barrel, and the conveying pipeline 14 is used for conveying the solvent into the ink barrel; specifically, the delivery pipe 14 includes a main path and a plurality of branches, wherein one end of the main path of the delivery pipe 14 is connected to the solvent barrel, and each branch leads to the ink barrel containing the ink.
In order to optimize the above embodiment, a valve 15 is further disposed on the main path of the conveying pipeline 14, the valve 15 can control on-off of the conveying pipeline 14, the valve 15 is connected with the central control cabinet 7 and is controlled by a control portion inside the central control cabinet 7, that is, the valve 15 is specifically a normally closed valve 15, when the comparison result received by the control portion is that the actually measured viscosity value is greater than the preset viscosity value, the control portion can control the valve 15 to open, and then the solvent in the solvent barrel can flow into the ink barrel, so as to complete adjustment of the ink viscosity.
More specifically, the system further comprises a flow control valve 5, wherein the flow control valve 5 is installed on the wire holder 3, the flow control valve 5 is connected with the branch end of the conveying pipeline 14, and when the solvent flows to the flow control valve 5 along the conveying pipeline 14, the flow control valve 5 is used for controlling the flow of the solvent according to a preset flow value, so that the accurate control of the solvent flow is achieved.
Further, the first detection part 11 is connected with the flow control valve 5 through the solvent flow guide pipe 2, the upper end of the solvent flow guide pipe 2 is connected with the flow control valve 5 through a hose, and the lower end of the solvent flow guide pipe 2 is installed on the first detection part 1 through the baffle 114, so that the solvent passes through the flow control valve 5 and then flows to the inside of the first detection part 11 along the solvent flow guide pipe 2, and is added into the ink, so that the safety and the accuracy of solvent addition can be guaranteed.
On the basis, in order to monitor the liquid level of the solvent barrel in real time to ensure that enough solvent is added, a liquid level monitoring box 13 can be arranged, and the liquid level monitoring box 13 is connected with the central control cabinet 7 and the solvent barrel; in addition, when the solvent in the solvent barrel is lower than the preset liquid level, the liquid level monitoring box 13 can transmit an alarm signal to the central control cabinet 7, so that the alarm indicator lamp 8 of the central control cabinet 7 can be lightened.
The central control cabinet 7 is provided with an alarm indicator lamp 8 positioned above, and further comprises an operation touch screen 9 and a switch 10, wherein the operation touch screen 9 is positioned below the alarm indicator lamp 8 and can be used for adjusting a preset viscosity value and manually inputting other parameter values for ensuring smooth operation of the system, and the switch 10 controls the central control cabinet 7 to be opened and closed.
In the operation process of the control system, firstly, the detection part 1 is fixed at the edge of the ink barrel, the first detection part 11 is immersed in the ink, the wiring of each wiring position of the wiring seat 3 is checked, the wiring safety is ensured, and whether the amount of the solvent filled in the solvent barrel is sufficient is checked; then, a switch 10 of the central control cabinet 7 is opened, meanwhile, the viscosity of the current ink of the ink barrel is measured by using a viscosity cup, the required viscosity is set on an operation touch screen 9, and the actually measured viscosity and the viscosity measured by the viscosity cup are corrected; an automatic control mode is set on the operation touch screen 9, so that the automatic control of the viscosity of the printing ink can be realized; after the use is finished, the detection part 1 is placed in a solvent and is shaken under 8-10 to ensure that the first detection part 11 has no ink residue; finally, the center control cabinet 7 is set to a manual mode or is turned off.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The automatic ink viscosity control system provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (2)
1. The automatic control system for the viscosity of the printing ink is characterized by comprising a plurality of detection parts (1) which are arranged in an ink barrel filled with the printing ink to be detected and are used for detecting the viscosity of the printing ink, and a central control cabinet (7) which is connected with all the detection parts (1) and is used for controlling a solvent to be added into the ink barrel so as to adjust the viscosity of the printing ink, wherein the number of the ink barrels is multiple, and the detection parts (1) are used for sequentially and correspondingly detecting the ink barrels; the central control cabinet (7) is internally provided with a calculation part capable of calculating to obtain the ink viscosity value, a comparison part connected with the calculation part and used for comparing the viscosity value with a preset viscosity value to obtain a comparison result, and a control part used for receiving the comparison result and controlling a solvent to be added into the ink barrel when the viscosity value is larger than the preset viscosity value; all the detection parts (1) comprise a first detection part (11) which is positioned below and used for triggering vibration to generate an acoustic wave signal and a second detection part (12) which is connected with the first detection part (11) and used for converting the acoustic wave signal into an electric signal and transmitting the electric signal to the operation part; the first detection part (11) comprises an elastic sheet (112), an ultrasonic transmitter (111) used for transmitting ultrasonic waves to trigger the elastic sheet (112) to vibrate, and an ultrasonic receiver (113) which is located at the same height as the ultrasonic transmitter (111) and used for receiving a sound wave signal of the elastic sheet (112);
the liquid level monitoring box (13) is connected with the central control cabinet (7) and is used for monitoring the liquid level of the solvent barrel;
the central control cabinet (7) is also provided with an alarm indicator lamp (8) which is positioned above and used for alarming, an operation touch screen (9) which is positioned below the alarm indicator lamp (8) and used for adjusting a preset viscosity value, and a switch (10) which is used for controlling the central control cabinet (7) to be opened and closed;
the detection device also comprises a plurality of wire holders (3) which are in one-to-one correspondence with the detection parts (1) and are connected with the detection parts (1) and used for connecting the detection parts (1) with the central control cabinet (7) in a wiring way; the central control cabinet (7) is connected with the wire holder (3) through a communication line (6), and the detection part (1) is connected with the wire holder (3) through an explosion-proof joint (4);
the device also comprises a flow control valve (5) which is arranged on the wire holder (3) and is used for controlling the flow of the solvent;
the first detection part (11) is connected with the flow control valve (5) through a solvent guide pipe (2);
the device also comprises a conveying pipeline (14) connected with a solvent barrel filled with the solvent and used for conveying the solvent, and a valve (15) connected with the central control cabinet (7) and used for controlling the on-off of the conveying pipeline (14), wherein the flow control valve (5) is connected with the tail end of a branch of the conveying pipeline (14).
2. Automatic ink viscosity control system according to claim 1, characterized in that the second detection means (12) are in particular sensor means.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811312787.XA CN109298736B (en) | 2018-11-06 | 2018-11-06 | Automatic control system for viscosity of printing ink |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811312787.XA CN109298736B (en) | 2018-11-06 | 2018-11-06 | Automatic control system for viscosity of printing ink |
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| CN109298736A CN109298736A (en) | 2019-02-01 |
| CN109298736B true CN109298736B (en) | 2022-01-28 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109895499B (en) * | 2019-03-14 | 2021-04-27 | 中钞油墨有限公司 | Method for preventing thickening and aging of engraving gravure ink printing |
| CN111703186B (en) * | 2020-06-29 | 2022-07-12 | 江西安源包装印务有限公司 | Ink viscosity adjusting method |
| CN112525291A (en) * | 2020-12-16 | 2021-03-19 | 深圳市纵维立方科技有限公司 | Printing apparatus and liquid level depth detection method |
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| WO2010111366A1 (en) * | 2009-03-24 | 2010-09-30 | Norcross Corporation | Mixers for a viscometer and methods and computer-readable media for using the same |
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