CN114407527A - Printing ink centralized ink supply system for printing machine and parameter design method - Google Patents
Printing ink centralized ink supply system for printing machine and parameter design method Download PDFInfo
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- CN114407527A CN114407527A CN202210067220.0A CN202210067220A CN114407527A CN 114407527 A CN114407527 A CN 114407527A CN 202210067220 A CN202210067220 A CN 202210067220A CN 114407527 A CN114407527 A CN 114407527A
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 8
- 238000005086 pumping Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 239000012141 concentrate Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000012855 volatile organic compound Substances 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- B41F31/02—Ducts, containers, supply or metering devices
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/17—Mechanical parametric or variational design
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2113/00—Details relating to the application field
- G06F2113/14—Pipes
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- Pure & Applied Mathematics (AREA)
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- General Engineering & Computer Science (AREA)
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- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The invention provides a printing ink centralized ink supply system for a printing machine and a parameter design method, wherein the printing ink centralized ink supply system comprises: an ink pump; a fixed mount; the fixed frame is arranged at the top of the fixed frame; the ink carrying platform is arranged on the sliding chute in a sliding manner and is driven by the driving device to move along the length direction of the sliding chute; the bottom in the ink storage tank is provided with a pressure sensor, and the fixing frame is arranged on the ink carrying platform and is communicated with the ink pump through a control pipeline; the automatic pressure control device is arranged at the top of the ink storage tank and used for adjusting the internal pressure of the ink storage tank; and the controller is arranged on one side of the fixing frame and is electrically connected with the pressure sensor, the automatic pressure control device and the ink pump. The printing ink centralized ink supply system for the printing machine solves the problems of printing ink waste and Volatile Organic Compounds (VOCs) discharge in the production process in the prior art, and realizes centralized supply and automatic control of the printing ink.
Description
Technical Field
The invention relates to the technical field of printing devices, in particular to a printing ink centralized ink supply system for a printing machine and a parameter design method.
Background
In the printing process, each printing unit is usually added with ink manually, and the ink adding method has the following disadvantages: firstly, the accuracy is low, the ink adding amount is often more than the actual requirement, and the small canned ink cannot be completely used up, thereby causing waste; secondly, the chance of contact between the ink and the air is increased, so that the solvent in the ink is volatilized, the VOC content in a production workshop is greatly increased, the working environment is influenced, and the volatilization of the solvent in the ink can increase the viscosity of the ink to form an ink skin, so that the quality of the ink is influenced; thirdly, the ink contacts with air for a long time, so that the possibility of the ink being polluted by impurities is increased, and the quality of the ink is further influenced; in addition, from the viewpoint of efficiency, the operation time required for the manual inking is long, thereby increasing the manual burden on the printing enterprise
Therefore, the invention provides a novel ink centralized ink supply system for a printing machine and a parameter design method.
Disclosure of Invention
In order to solve the problems, the invention provides a printing ink centralized ink supply system for a printing machine and a parameter design method, which solve the problems of printing ink waste and Volatile Organic Compounds (VOCs) emission in the production process in the prior art. The centralized supply and the automatic control of the printing ink are realized, the printing production cost and the working intensity of operators are reduced, the printing production efficiency is improved, and the green printing production is realized.
In order to achieve the above purpose, the present invention provides the following technical solutions.
An ink centralized ink supply system for a printing machine, comprising:
an ink pump;
a fixed mount;
the fixed frame is arranged at the top of the fixed frame;
the ink carrying platform is arranged on the sliding groove in a sliding mode and is driven by a driving device to move along the length direction of the sliding groove;
the ink storage tank is internally provided with two liquid level sensors on the inner side wall, and the fixed frame is arranged on the ink carrying platform and is communicated with the ink pump through a control pipeline;
the automatic pressure control device is arranged at the top of the ink storage tank and used for adjusting the internal pressure of the ink storage tank;
and the controller is arranged on one side of the fixing frame and is electrically connected with the liquid level sensor, the automatic pressure control device and the ink pump.
Preferably, the driving means includes:
the lead screw penetrates through the ink carrying platform and is in threaded fit with the ink carrying platform; two ends of the sliding groove are respectively and rotatably connected with two ends of the sliding groove;
and the stepping motor is fixedly arranged at one end of the sliding chute, and an output shaft of the stepping motor is in transmission connection with the lead screw.
A printing ink centralized ink supply system for a printing machine and a parameter design method comprise the following steps:
determining the pressure transmission ratio of an ink pump, the input pressure of compressed air and the highest pressure of the ink pump according to the pressure range of smooth ink delivery;
and determining the corresponding pipeline lengths of the pipelines with different diameters according to the rheological property and viscosity data of the ink.
Preferably, the determining the pressure transmission ratio of the ink pump, the input pressure of the compressed air and the highest pressure of the ink pump according to the pressure range in which the ink is smoothly delivered comprises the following steps:
the ink pump pressure is calculated as follows:
P＝Pc×γ
in the formula, PcThe pressure is the input pressure of compressed air, and gamma is the pressure transmission ratio of the ink pump;
and ensuring that the pressure for smoothly conveying the printing ink is 10-15 MPa, determining that the pressure transmission ratio of the ink pump is 16: 1, the input pressure of compressed air is 0.8MPa, and the highest pressure of the ink pump is 12.8 MPa.
Preferably, the analysis of the rheological properties comprises the following steps:
performing fluid mechanics analysis on the ink, and obtaining that the flow of the ink in the pipeline is regarded as laminar flow according to the Reynolds number; because the ink has viscosity, the flow speed of the ink on the pipe wall is regarded as 0, and the flow speed is maximum at the center of the pipe, then:
the differential equation of laminar motion of the ink in the pipeline is expressed as:
in the formula, mu is the viscosity of the printing ink, l is the length of the pipeline, delta P is the pressure drop, and r is the radius of the pipeline;
the flow rate Q of the ink in the conduit is calculated as follows:
according to the ink pumping pressure, the ink pumping amount is calculated to be 18L/min.
Preferably, the control of the length of the pipeline corresponding to different diameters of the pipeline comprises the following steps:
according to the pump ink pressure, the ink flow and the ink viscosity data, the relation value of the diameter and the length of the ink conveying pipeline is extremely obtained through a flow calculation formula of the ink in the pipeline:
d4/l
and further calculating according to the relation value to obtain the lengths of the pipelines under different diameters.
The invention has the beneficial effects that:
the invention provides a printing ink centralized ink supply system for a printing machine and a parameter design method, which solve the problems of printing ink waste and VOCs (volatile organic chemicals) discharge in the production process in the prior art. The centralized supply and the automatic control of the printing ink are realized, the printing production cost and the working intensity of operators are reduced, the printing production efficiency is improved, and the green printing production is realized.
Drawings
FIG. 1 is a schematic diagram of a centralized ink supply structure according to an embodiment of the present invention;
fig. 2 is a structural view of an automatic ink-feeding device according to an embodiment of the present invention.
In the figure, 1, a fixed frame; 2. a chute; 3. an ink carrying table; 4. an ink storage tank; 5. and a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The invention discloses a centralized ink supply system for printing ink for a printing machine, which is shown in figures 1-2 and comprises the following components:
an ink pump; a fixed frame 1; the sliding chute 2 is arranged at the top of the fixed frame 1; the ink carrying platform 3 is arranged on the sliding chute 2 in a sliding way and is driven by a driving device to move along the length direction of the sliding chute 2; the ink storage tank 4 is provided with a liquid level sensor at the bottom inside and used for judging the liquid level inside the tank, and the ink storage tank 4 is fixedly arranged on the ink carrying platform 3 and communicated with the ink pump through a control pipeline; an automatic pressure control device which is arranged on the top of the ink storage tank 4 and adjusts the internal pressure of the ink storage tank 4; and the controller 5 is arranged on one side of the fixed frame 1 and is electrically connected with the pressure sensor, the automatic pressure control device and the ink pump.
Further, the driving device includes: the lead screw penetrates through the ink carrying platform 3 and is in threaded fit with the ink carrying platform 3; two ends of the sliding chute are respectively and rotatably connected with two ends of the sliding chute 2; the stepping motor is fixedly arranged at one end of the sliding groove 2, and an output shaft of the stepping motor is in transmission connection with the lead screw.
A parameter design method of a printing ink centralized ink supply system for a printing machine comprises the following steps:
s1: determining the pressure transmission ratio of an ink pump, the input pressure of compressed air and the highest pressure of the ink pump according to the pressure range of smooth ink delivery; specifically, the method comprises the following steps: the method comprises the following steps:
the ink pump pressure is calculated as follows:
P＝Pc×γ
in the formula, PcThe pressure is the input pressure of compressed air, and gamma is the pressure transmission ratio of the ink pump;
and ensuring that the pressure for smoothly conveying the printing ink is 10-15 MPa, determining that the pressure transmission ratio of the ink pump is 16: 1, the input pressure of compressed air is 0.8MPa, and the highest pressure of the ink pump is 12.8 MPa.
S2: and determining the corresponding pipeline lengths of the pipelines with different diameters according to the rheological property and viscosity data of the ink. Specifically, the method comprises the following steps:
performing fluid mechanics analysis on the ink, and obtaining that the flow of the ink in the pipeline is regarded as laminar flow according to the Reynolds number; because the ink has viscosity, the flow speed of the ink on the pipe wall is regarded as 0, and the flow speed is maximum at the center of the pipe, then: the differential equation of laminar motion of the ink in the pipeline is expressed as:
in the formula, mu is the viscosity of the printing ink, l is the length of the pipeline, delta P is the pressure drop, and r is the radius of the pipeline;
the flow rate Q of the ink in the conduit is calculated as follows:
according to the ink pumping pressure, the ink pumping amount is calculated to be 18L/min.
The method for controlling the length of the pipeline corresponding to different diameters of the pipeline specifically comprises the following steps:
according to the pump ink pressure, the ink flow and the ink viscosity data, the relation value of the diameter and the length of the ink conveying pipeline is extremely obtained through a flow calculation formula of the ink in the pipeline:
d4/l
and further calculating according to the relation value to obtain the lengths of the pipelines under different diameters.
In the present embodiment, the first and second electrodes are,
the ink adding device of the invention comprises a fixed frame, a sliding chute, an ink carrying platform, an ink storage tank, an automatic pressure control device, a controller and the like, and the specific structure is shown in figure 2. When the ink in the ink storage tank is lower than the lowest set value, the controller receives a feedback signal of the low liquid level sensor and controls the ink pump to automatically pump the ink to the ink storage tank; when the ink amount reaches the set maximum amount, namely the controller receives a feedback signal of the high liquid level sensor, the ink pump is controlled to stop adding ink.
When the ink adding device adds ink to the ink fountain, the ink storage tank is controlled to be automatically opened/closed through the stepping motor, the automatic pressure control device, the controller and the like, and automatic ink adding is achieved. The ink can be uniformly added on the ink groove through the ink adding device sliding groove.
According to the invention, the automatic ink adding device is designed by combining the design scheme of the centralized ink supply system and the ink characteristic analysis to calculate the ink pumping pressure, the pumping quantity and the length of the ink conveying pipeline. The automatic ink adding device can realize automatic adding of ink, saves time and labor, can reduce unorganized volatilization of stored ink due to the fact that the device is a sealing device, can adjust extrusion pressure according to viscosity and storage capacity of the ink by the automatic pressure control device, enables the ink to be completely extruded, can well control the using amount of the ink, and reduces waste of the ink.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A printing ink concentrates ink supply system for printing machine which characterized in that includes:
an ink pump;
a fixed frame (1);
the sliding chute (2) is arranged at the top of the fixed frame (1);
the ink carrying platform (3) is arranged on the sliding chute (2) in a sliding manner and is driven by a driving device to move along the length direction of the sliding chute (2);
the ink storage tank (4), the inner side wall of which is provided with two liquid level sensors, and the fixed mount is arranged on the ink carrying platform (3) and is communicated with the ink pump through a control pipeline;
the automatic pressure control device is arranged at the top of the ink storage tank (4) and used for adjusting the internal pressure of the ink storage tank (4);
and the controller (5) is arranged on one side of the fixed frame (1) and is electrically connected with the liquid level sensor, the automatic pressure control device and the ink pump.
2. The ink centralized feeding system for printing machine according to claim 1, wherein said driving means comprises:
the lead screw penetrates through the ink carrying platform (3) and is in threaded fit with the ink carrying platform (3); the two ends of the sliding chute (2) are respectively and rotatably connected with the two ends of the sliding chute;
the stepping motor is fixedly arranged at one end of the sliding groove (2), and an output shaft of the stepping motor is in transmission connection with the lead screw.
3. A method for designing parameters of a centralized ink supply system for printing ink of a printing machine according to any one of claims 1-2, comprising the steps of:
determining the pressure transmission ratio of an ink pump, the input pressure of compressed air and the highest pressure of the ink pump according to the pressure range of smooth ink delivery;
and determining the corresponding pipeline lengths of the pipelines with different diameters according to the rheological property and viscosity data of the ink.
4. The method for designing parameters of an ink centralized ink supply system for a printing machine according to claim 3, wherein the determining of the pressure transmission ratio of the ink pump, the input pressure of the compressed air and the maximum pressure of the ink pump according to the pressure range in which the ink is smoothly delivered comprises the following steps:
the ink pump pressure is calculated as follows:
P＝Pc×γ
in the formula, PcThe pressure is the input pressure of compressed air, and gamma is the pressure transmission ratio of the ink pump;
and ensuring that the pressure for smoothly conveying the printing ink is 10-15 MPa, determining that the pressure transmission ratio of the ink pump is 16: 1, the input pressure of compressed air is 0.8MPa, and the highest pressure of the ink pump is 12.8 MPa.
5. The method for designing parameters of the centralized ink supply system for printing ink of the printer according to the claim 3, wherein the analysis of the rheological characteristics comprises the following steps:
performing fluid mechanics analysis on the ink, and obtaining that the flow of the ink in the pipeline is regarded as laminar flow according to the Reynolds number; because the ink has viscosity, the flow speed of the ink on the pipe wall is regarded as 0, and the flow speed is maximum at the center of the pipe, then:
the differential equation of laminar motion of the ink in the pipeline is expressed as:
in the formula, mu is the viscosity of the printing ink, l is the length of the pipeline, delta P is the pressure drop, and r is the radius of the pipeline;
the flow rate Q of the ink in the conduit is calculated as follows:
according to the ink pumping pressure, the ink pumping amount is calculated to be 18L/min.
6. The method for designing parameters of the centralized ink supply system for the printing machine as claimed in claim 5, wherein the controlling of the lengths of the pipes corresponding to different diameters of the pipes comprises the steps of:
according to the pump ink pressure, the ink flow and the ink viscosity data, the relation value of the diameter and the length of the ink conveying pipeline is extremely obtained through a flow calculation formula of the ink in the pipeline:
d4/l
and further calculating according to the relation value to obtain the lengths of the pipelines under different diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210067220.0A CN114407527A (en) | 2022-01-20 | 2022-01-20 | Printing ink centralized ink supply system for printing machine and parameter design method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210067220.0A CN114407527A (en) | 2022-01-20 | 2022-01-20 | Printing ink centralized ink supply system for printing machine and parameter design method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07314645A (en) * | 1994-05-23 | 1995-12-05 | Taniguchi Ink Seizo Kk | Color toning and metering device for printing ink |
| CN203752691U (en) * | 2014-02-28 | 2014-08-06 | 工正集团有限公司 | Automatic ink refilling system |
| CN208930936U (en) * | 2018-07-24 | 2019-06-04 | 湖南雅嘉彩色印刷有限公司 | A kind of small-sized automatic ink-supply equipment of green printing with oleophobic coating |
| CN110450538A (en) * | 2019-09-10 | 2019-11-15 | 美盈森集团股份有限公司 | A kind of ink feeding system |
| CN211307912U (en) * | 2019-09-10 | 2020-08-21 | 美盈森集团股份有限公司 | Ink supply system |
-
2022
- 2022-01-20 CN CN202210067220.0A patent/CN114407527A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07314645A (en) * | 1994-05-23 | 1995-12-05 | Taniguchi Ink Seizo Kk | Color toning and metering device for printing ink |
| CN203752691U (en) * | 2014-02-28 | 2014-08-06 | 工正集团有限公司 | Automatic ink refilling system |
| CN208930936U (en) * | 2018-07-24 | 2019-06-04 | 湖南雅嘉彩色印刷有限公司 | A kind of small-sized automatic ink-supply equipment of green printing with oleophobic coating |
| CN110450538A (en) * | 2019-09-10 | 2019-11-15 | 美盈森集团股份有限公司 | A kind of ink feeding system |
| CN211307912U (en) * | 2019-09-10 | 2020-08-21 | 美盈森集团股份有限公司 | Ink supply system |
Non-Patent Citations (1)
| Title |
|---|
| 王艳辉等: "胶印智能供墨***研究及应用", 《数字印刷》 * |
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Application publication date: 20220429 |
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