CN113650415A - Printing ink blending unit and automatic ink supply system of printing machine - Google Patents
Printing ink blending unit and automatic ink supply system of printing machine Download PDFInfo
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- CN113650415A CN113650415A CN202110901767.1A CN202110901767A CN113650415A CN 113650415 A CN113650415 A CN 113650415A CN 202110901767 A CN202110901767 A CN 202110901767A CN 113650415 A CN113650415 A CN 113650415A
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/16—Programming systems for automatic control of sequence of operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F35/00—Cleaning arrangements or devices
Abstract
The invention provides an ink blending unit and an automatic ink supply system of a printing machine, belonging to the field of printing equipment, wherein the ink blending unit comprises: the device comprises a raw ink barrel, a solvent barrel, a weighing tank, an ink storage barrel and an air compressor, wherein at least one raw ink barrel is used for storing raw ink; at least one solvent barrel is arranged for storing the solvent; the weighing tank is respectively communicated with the raw ink barrel and the solvent barrel, and the weighing tank is used for weighing through a weighing device so as to input the raw ink and the solvent quantitatively; the ink storage barrel is communicated with the weighing tank to store the weighed raw ink and solvent; the air compressor is communicated with the weighing tank to pump the raw ink and the solvent into the ink storage barrel through compressed air, and blow air into the ink storage barrel to fully mix the raw ink and the solvent to form the ink. The automatic ink supply system of the printing machine comprises a viscosity detection unit, an ink tank, a control unit and the ink mixing unit. The automatic ink mixing device can realize automatic ink mixing and avoid errors caused by manual mixing.
Description
Technical Field
The invention belongs to the field of printing equipment, and particularly relates to an ink blending unit.
Background
At present, most of the printing industry uses the traditional printing process, generally, operators blend the printing ink according to the consistency of the printing ink required by the printing machine, and the printing effect of different batches of products is different due to the fact that no special viscosity detecting instrument exists and the operation is purely performed according to the experience of the operators, so that the defective rate of the products is higher.
Disclosure of Invention
Based on the background problem, the invention aims to provide an ink blending unit, which can realize automatic blending of ink and avoid errors caused by manual blending; another object of the present invention is to provide an automatic ink supply system for a printing press including the above ink blending unit.
In order to achieve the above object, in one aspect, the embodiment of the present invention provides a technical solution:
at least one raw ink barrel is arranged and used for storing raw ink;
at least one solvent barrel is arranged and used for storing the solvent;
the weighing tank is respectively communicated with the raw ink barrel and the solvent barrel, and the weighing tank is used for weighing through a weighing device so as to input the raw ink and the solvent quantitatively;
the ink storage barrel is communicated with the weighing tank to store the weighed raw ink and solvent;
and the air compressor is communicated with the weighing tank so as to pump the raw ink and the solvent into the ink storage barrel through compressed air and blow air into the ink storage barrel to fully mix the raw ink and the solvent to form the ink.
Furthermore, a lifting device is arranged above the ink storage barrel, and a pipeline communicated with the ink storage barrel is fixed on the lifting device so as to draw the pipeline out of the ink storage barrel or stretch the pipeline into the ink storage barrel.
Further, the air compressor is communicated with the raw ink barrel so as to blow and stir the raw ink in the raw ink barrel.
On the other hand, an embodiment of the present invention further provides an automatic ink supply system for a printing press, including the above ink blending unit, and further including a viscosity detection unit, where the viscosity detection unit is communicated with the ink storage barrel to form a closed loop, so as to monitor the viscosity of the ink in the ink storage barrel in real time.
Furthermore, the closed loop of the viscosity detection unit and the ink storage barrel consists of an input pipeline I and an output pipeline I, and the input pipeline I is communicated with the solvent barrel so as to clean the viscosity detection unit.
Further, the automatic ink supply system of the printing machine further comprises an ink tank, and the ink tank and the ink storage barrel are communicated to form a closed loop so as to supply ink to the ink tank and receive ink.
Furthermore, the closed loop of the ink tank and the ink storage barrel consists of an input pipeline II and an output pipeline II, and the input pipeline II is communicated with the output pipeline II;
the input pipeline II is communicated with the solvent barrel to clean the ink groove, and the output pipeline II is communicated at the upper limit of the liquid level of the ink groove to enable overflowed ink to flow back to the ink storage barrel from the output pipeline II.
Further, the automatic ink supply system of the printing machine further comprises a control unit, and the control unit comprises:
a central controller;
the display screen is in communication connection with the central controller and is used for a user to set the addition amounts of the raw ink and the solvent, the sampling interval of the viscosity detection unit, the set value of the viscosity, the fluctuation range of the viscosity and the upper limit value of the ink liquid level in the ink tank;
the weighing module is respectively in communication connection with the weighing device and the central controller, so that the central controller stops conveying of raw ink and solvent after weight data detected by the weighing device reaches a preset value;
the liquid level sensor I is arranged in the ink storage barrel and is in communication connection with the central controller, so that when liquid level data detected by the liquid level sensor I reaches a low liquid level limit, the central controller starts the conveying of raw ink and solvent;
and the alarm module is in communication connection with the central controller, so that the alarm module is controlled to give an alarm through the central controller when weight data detected by the weighing device does not reach a preset adding amount and a viscosity value detected by the viscosity detection unit exceeds a preset fluctuation range within a preset time.
Still further, the control unit further includes:
and the liquid level sensor II is arranged in the ink tank and is in communication connection with the central controller, so that when liquid level data detected by the liquid level sensor II reaches an upper limit value of the liquid level, the central controller starts the backflow conveying of the ink in the ink tank.
Further, the viscosity detection unit is in communication connection with the central controller, so that when the viscosity value detected by the viscosity detection unit is higher than a preset value, the central controller starts the conveying of the solvent; and when the viscosity value detected by the viscosity detection unit is lower than a preset value, the conveying of the raw ink is started through the central controller.
Compared with the prior art, the embodiment of the invention at least has the following effects:
1. the ink blending unit comprises a raw ink barrel, a solvent barrel, a weighing tank, an ink storage barrel and an air compressor, wherein the weighing tank can weigh raw ink and solvent so as to input the raw ink and the solvent quantitatively, and the air compressor is used for pumping the raw ink and the solvent into the ink storage barrel and uniformly mixing the raw ink and the solvent in the ink storage barrel to form ink.
2. The invention can be provided with a plurality of original ink barrels, so that original inks with different colors can be stored, a plurality of ink colors can be added according to the color proportion to be prepared into spot color ink, the color of the debugged spot color is accurate, the color difference is small, and accurate color matching is realized.
3. The air compressor is also communicated with the original ink barrel, so that the effect of stirring the original ink can be achieved, and excessive precipitation of the original ink after long-time storage is prevented.
4. The lifting device is arranged above the ink storage barrel, the pipeline communicated with the ink storage barrel is fixed on the lifting device, and the lifting device drives the lifting device to move up and down, so that the ink storage barrel is convenient to replace or clean.
5. The automatic ink supply system of the printing machine comprises a viscosity detection unit, wherein the viscosity detection unit is communicated with an ink storage barrel to form a closed loop, so that the viscosity of ink in the ink storage barrel can be monitored in real time; the viscosity detection unit and the closed loop of the ink storage barrel are composed of an input pipeline I and an output pipeline I, the input pipeline I is communicated with the solvent barrel, and the viscosity detection unit can be cleaned.
6. The automatic ink supply system of the printing machine also comprises an ink tank, wherein the ink tank is communicated with the ink storage barrel to form a closed loop, so that the ink in the ink tank is always circulated with the ink in the ink storage barrel and is matched with the viscosity detection unit, the viscosity of the ink can be kept stable, and the yield and the production stability of production are further ensured; the closed loop of the ink groove and the ink storage barrel consists of an input pipeline II and an output pipeline II, and the input pipeline II is communicated with the solvent barrel so as to clean the ink groove.
7. The automatic ink supply system of the printing machine also comprises a control unit, so that automatic addition, automatic detection and automatic adjustment can be realized, manual intervention is not required, and human errors are avoided; and can give an alarm when the system has a problem so as to prompt the staff.
8. The viscosity detection unit is in communication connection with the central controller, and when the viscosity value detected by the viscosity detection unit is higher than a preset value, the central controller starts the conveying of the solvent so as to dilute the ink in the ink storage barrel; when the viscosity value detected by the viscosity detection unit is lower than the preset value, the central controller starts the conveying of the original ink so as to increase the viscosity of the ink in the ink storage barrel, and the stability of the viscosity of the ink can be ensured through the adjusting mechanism.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below.
FIG. 1 is a schematic structural diagram of an ink preparing unit in example 1 of the present invention;
FIG. 2 is a schematic structural diagram of an automatic ink supply system of a printing press according to embodiment 2 of the present invention;
FIG. 3 is a schematic view showing the connection of a viscosity detecting unit in example 2 of the present invention;
FIG. 4 is a schematic view showing the connection of ink tanks in example 2 of the present invention;
fig. 5 is a schematic structural diagram of an automatic ink supply system of a printing press according to embodiment 3 of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings of the specification, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Example 1
In order to solve the problem of error in the manual ink blending, the present embodiment provides an ink blending unit 1, as shown in fig. 1, including: a raw ink tank 101, a solvent tank 102, a weighing tank 103, an ink storage tank 104, and an air compressor 105.
In this embodiment, five raw ink tanks 101 are provided for storing raw ink of different colors, and each raw ink tank 101 is communicated with the weighing tank 103 through a conveying pipeline.
Specifically, taking one of the raw ink barrels 101 as an example, a straight-through valve I101-1, a delivery pump I101-2 and a straight-through valve II 101-3 are sequentially arranged on a delivery pipeline of the weighing tank 103, the straight-through valve I101-1 is arranged adjacent to the raw ink barrel 101, the straight-through valve II 101-3 is arranged adjacent to the weighing tank 103, when the weighing tank is not used, the straight-through valve I101-1 and the straight-through valve I101-3 are in a normally closed state, and the arrangement position can prevent the raw ink from being dried in the delivery pipeline.
In the present embodiment, the solvent tank 102 is provided with one tank for storing the solvent, but it should be noted that the number of the solvent tanks 102 is not limited to one in the present embodiment, because the solvent is divided into a fast drying type, a slow drying type, a medium drying type, and a fast dissolving type, when the mixed solvent is needed, a plurality of solvent tanks 102 may be provided.
The solvent barrel 102 is communicated with the weighing tank 103, and a three-way valve I102-1 and a delivery pump II102-2 are sequentially arranged on a communication pipeline of the solvent barrel 102 and the weighing tank 103.
In this embodiment, the weighing tank 103 is respectively communicated with the raw ink barrel 101 and the solvent barrel 102, and is used for weighing the raw ink and the solvent to mix the raw ink and the solvent in proportion, and a straight-through valve III 103-1 is arranged on a communication pipeline between the weighing tank 103 and the ink storage barrel 104.
The weighing tank 103 is used for weighing through the weighing device 103-2, the weighing device 103-2 can be arranged above the weighing tank 103 and used for hanging the weighing tank 103, and also can be arranged below the weighing tank 103 and used for supporting the weighing tank 103, the weighing device 103-2 is an existing device, and the structure of the weighing device is not described in detail in the embodiment.
In this embodiment, the ink storage barrel 104 is communicated with the weighing tank 103, and is used for storing the weighed raw ink and solvent.
In this embodiment, the air compressor 105 is communicated with the weighing tank 103, and specifically, a communication pipeline between the air compressor 105 and the weighing tank 103 is sequentially provided with an oil-water separation main air pressure valve 105-1, a circulating air pressure valve meter 105-2, a solenoid valve set 105-3, and a manual pressure regulating valve I105-4.
The air compressor 105 is communicated with the weighing tank 103, and can pump raw ink and solvent into the ink storage barrel 104 through compressed air and blow air into the ink storage barrel 104 to uniformly mix the ink and the solvent to form ink.
As shown in fig. 1, the air compressor 105 is further communicated with the raw ink tank 101, specifically, a branch is branched from the electromagnetic valve set 105-3 and communicated with the raw ink tank 101, and a manual pressure regulating valve II 105-5 and a check valve 105-6 are sequentially arranged on the branch, so that the raw ink in the raw ink tank 101 can be blown and stirred to prevent excessive deposition after the raw ink is stored for a long time.
When the weighing tank works, the straight-through valve I101-1 and the straight-through valve II 101-3 are opened, the straight-through valve III 103-1 is closed, the conveying pump I101-2 is started, the conveying pump I101-2 pumps raw ink in the raw ink barrel 101 into the weighing tank 103, when weight data in the weighing tank 103 reach a set value, the straight-through valve I101-1 and the straight-through valve II 101-3 are closed, and the conveying pump I101-2 stops working.
And then the three-way valve I102-1 is controlled to be opened towards the solvent barrel 102 and the conveying pump II102-2, so that the solvent barrel 102 is communicated with the weighing tank 103, the conveying pump II102-2 is started, the conveying pump II102-2 pumps the solvent in the solvent barrel 102 into the weighing tank 103, when the weight data in the weighing tank 103 reaches a set value, the three-way valve I102-1 is closed towards the conveying pump II102-2, and the conveying pump II102-2 stops working.
At the moment, the through valve III 103-1 is controlled to be opened, the air compressor 105 is started, the electromagnetic valve corresponding to the air compressor 105 in the electromagnetic valve group is opened, meanwhile, the electromagnetic valve corresponding to the manual pressure regulating valve I105-4 in the electromagnetic valve group 105-3 starts to work, compressed air enters the weighing tank 103 through the manual pressure regulating valve I105-4, and raw ink and solvent are pumped into the ink storage barrel 104 through the through valve III 103-1.
In actual operation, when the raw ink and the solvent are conveyed by air pressure, the extrusion time can be properly prolonged, so that the compressed air enters the ink storage barrel 104, the effect of inflating and stirring the ink storage barrel 104 can be achieved, and the raw ink and the solvent are uniformly mixed to form ink; the air pressure can be adjusted according to the volume of the ink storage barrel 104, the original ink depth and the like to change the air blowing size, so that ink sputtering caused by too large air blowing is prevented.
It should be noted that, when the spot color is prepared, the above adding process is repeated to add the raw inks of different colors in different raw ink tanks 101 into the weighing tank 103 according to the proportioning requirement, so as to obtain the spot color ink, in this process, after the raw inks of different colors are all pumped into the weighing tank 103, the air compressor 105 is started to convey the raw inks into the ink storage tank 104 for uniform mixing, no manual intervention is required in this process, the color of the debugged spot color is accurate, the color difference is small, and thus accurate color matching is realized.
In order to facilitate cleaning or replacing the ink storage barrel 104, in this embodiment, a lifting device 104-1 is disposed above the ink storage barrel 104, and a pipeline communicated with the ink storage barrel 104 is fixed on the lifting device 104-1, in this embodiment, a pipeline communicated with the weighing tank 103 and the ink storage barrel 104 is fixed, and the pipeline extends into the ink storage barrel 104 from the top end of the ink storage barrel 104 after passing through the lifting device 104-1.
Specifically, in order to achieve the insertion and extraction of the pipeline, the pipeline located outside the ink storage barrel 104 adopts a hose structure, so that when the lifting device 104-1 is lifted, the pipeline can be extracted from the ink storage barrel 104, the ink storage barrel 104 can be cleaned or replaced, and after the lifting device 104-1 is started to descend, the pipeline is inserted into the ink storage barrel 104.
In practical operation, a through hole for the pipeline to extend into is formed in the barrel cover of the ink storage barrel 104, and the pipeline is tightly matched with the through hole, so that the solvent in the ink storage barrel 104 is prevented from volatilizing, and the viscosity of the ink is prevented from increasing.
The lifting device 104-1 may be composed of lifting columns respectively disposed at two sides of the ink storage barrel 104 and fixing plates fixed at top ends of the lifting columns, and in other embodiments, the lifting device 104-1 may also be similar to a lifting gantry structure, i.e., the embodiment does not specifically limit the lifting device 104-1.
Example 2
An automatic ink supply system for a printing press, as shown in fig. 2, includes: a viscosity detection unit 2, an ink tank 3, a control unit 4, and the ink preparation unit 1 in example 1.
In this embodiment, the viscosity detection unit 2 and the ink storage barrel 104 are communicated to form a closed loop to monitor the viscosity of the ink in the ink storage barrel 104 in real time, and for the viscosity detection unit 2, the specific structure thereof is described in the prior patent of the applicant, and this embodiment is not described in more detail, but the structure of the viscosity detection unit is not particularly limited in this embodiment, and other structures capable of realizing online viscosity detection may be used.
Specifically, as shown in fig. 3, the closed loop of the viscosity detection unit 2 and the ink storage barrel 104 is composed of an input pipeline I201 and an output pipeline I202, and the input pipeline I201 is provided with a three-way valve II 201-1 and a delivery pump III 201-2.
During viscosity detection, the three-way valve II 201-1 is opened towards the ink storage barrel 104 and the delivery pump III 201-2, the ink storage barrel 104 is communicated with the viscosity detection unit 2, the delivery pump III 201-2 is started, ink enters the viscosity detection unit 2 through the input pipeline I201 for viscosity detection, and after the detection is finished, the ink returns to the ink storage barrel 104 from the output pipeline I202, so that the real-time monitoring of the ink can be realized.
In order to clean the viscosity detection unit 2 and ensure the accuracy of viscosity detection, the input pipeline I201 of this embodiment is further communicated with the solvent tank 102, specifically, the three-way valve I102-1 is communicated with the three-way valve II 201-1, when cleaning, the switch is pressed, the three-way valve I102-1 is opened towards the solvent tank 102 and the three-way valve II 201-1, the three-way valve II 201-1 is opened towards the three-way valve I102-1 and the delivery pump III 201-2, at this time, the delivery pump III 201-2 is started, the solvent in the solvent tank 102 is pumped into the viscosity detection unit 2 for cleaning, and then the solvent is discharged into the ink storage tank 104.
In the present embodiment, as shown in fig. 2, the ink tank 3 communicates with the ink storage barrel 104 to form a closed loop, so as to ink the ink tank 3 and collect the ink.
Specifically, as shown in fig. 4, the closed loop between the ink tank 3 and the ink storage barrel 104 is composed of an input pipeline II 301 and an output pipeline II 302, the input pipeline II 301 is communicated with the lowest position of the ink tank 3, the output pipeline II 302 is communicated with the high position of the ink tank 3, i.e., the upper limit of the liquid level, so as to prevent the ink from overflowing the ink tank 3, and the ink exceeding the upper limit of the liquid level can flow back into the ink storage barrel 104 from the output pipeline II 302.
The input pipeline II 301 is sequentially provided with a three-way valve III 301-1, a delivery pump IV301-2 and a three-way valve IV 301-3, the output pipeline II 302 is sequentially provided with a delivery pump V302-1 and a three-way valve V302-2, and the three-way valve IV 301-3 is communicated with the three-way valve V302-2.
When inking, the three-way valve III 301-1 is controlled to open towards the ink storage barrel 104 and the delivery pump IV301-2, the three-way valve IV 301-3 is controlled to open towards the delivery pump IV301-2 and the ink tank 3, so as to connect the input pipeline II 301, control the three-way valve V302-2 to open towards the ink tank 3 and the delivery pump V302-1, connect the output pipeline II 302, start the delivery pump IV301-2 at this moment, draw the ink from the ink storage barrel 104 and inject the ink into the ink tank 3, when the ink in the ink tank 3 reaches the upper limit of the liquid level, the conveying pump V302-1 is started to convey the overflowed ink back to the ink storage barrel 104, so that the ink in the ink tank 3 and the ink in the ink storage barrel 104 can be ensured to be circularly replaced, and the ink is matched with the viscosity detection unit 2 for use, so that the stability of the viscosity of the ink can be ensured, and the production yield and the production stability are further ensured.
When ink is collected, the three-way valve IV 301-3 is opened towards the three-way valve V302-2 and the ink tank 3, the three-way valve V302-2 is opened towards the three-way valve IV 301-3 and the delivery pump V302-1, the delivery pump V302-1 is started at the moment, and the ink in the ink tank 3 is delivered into the ink storage barrel 104 from the lowest position through the input pipeline 301, the three-way valve IV 301-3, the three-way valve V302-2 and the output pipeline II 302.
The inking and ink collecting process of the embodiment changes the current mode that inking and ink collecting completely depend on manpower, and can ensure that the ink tank 3 is properly in a sealing state, reduce the contact surface of the ink tank 3 and air, and reduce volatilization.
In order to clean the ink tank 3, as shown in fig. 2, the input pipeline II 301 is communicated with the solvent barrel 102 to clean the ink tank 3, specifically, a branch pipeline is communicated with a communication pipeline between the three-way valve I102-1 and the three-way valve II 201-1, and the end of the branch pipeline is communicated with the three-way valve III 301-1.
When cleaning, the switch is pressed, the three-way valve I102-1 is opened towards the solvent barrel 102 and the three-way valve II 201-1, the three-way valve III 301-1 is opened towards the three-way valve I102-1 and the delivery pump IV301-2, the three-way valve IV 301-3 is opened towards the delivery pump IV301-2 and the ink tank 3, the three-way valve II 201-1 is closed towards the three-way valve I102-1, the delivery pump IV301-2 is started, the solvent in the solvent barrel 102 is extracted to enter the ink tank 3 for cleaning, when the solvent reaches the upper limit of the liquid level, the ink receiving process is repeated, and then the cleaning is stopped.
Through above-mentioned structure to viscosity detecting element 2 and china ink groove 3 wash, make things convenient for the machine to trade different colours or printing machine and use, in addition, when the printing machine does not use for a long time, can prevent that the interior china ink of machine from drying out.
In this embodiment, the control unit 4 is configured to implement an automated process, and as shown in fig. 2, the control unit 4 includes: a central controller 401, a display screen 402, a sub-screen 403, a weighing module 404, a level sensor I405, a level sensor II, and an alarm module 406.
The display screen 402 is in communication connection with the central controller 401, and is used for a user to set the addition amounts of raw ink and solvent, the sampling interval of the viscosity detection unit, the set value of viscosity, the fluctuation range of viscosity, and the upper limit value of the ink liquid level in the ink tank 3.
The weighing module 404 is in communication connection with the weighing device 103-2 and the central controller 401 respectively, so that the central controller 401 stops the transportation of the raw ink and the solvent after the weight data detected by the weighing device 103-2 reaches a preset value.
Specifically, during ink preparation, when the weight data of the raw ink detected by the weighing device 103-2 reaches a set value, a signal is transmitted to the central controller 401 through the weighing module 404, the central controller 401 controls the through valve I101-1 and the through valve I101-3 to be closed, and the delivery pump I101-2 stops working.
Then the three-way valve I102-1 is controlled to be opened towards the solvent barrel 102 and the conveying pump II102-2, and the conveying pump II102-2 is started to pump the solvent into the weighing tank 103; when the weight data of the solvent detected by the weighing device 103-2 reaches a set value, a signal is transmitted to the central controller 401 through the weighing module 404, and the central controller 401 controls the three-way valve I102-1 to close towards the delivery pump II 102-2.
And then the electromagnetic valve corresponding to the air compressor 105 in the electromagnetic valve group is controlled to be opened, so that the raw ink and the solvent in the weighing tank 103 are conveyed into the ink storage barrel 104.
The liquid level sensor I405 is disposed in the ink storage barrel 104, and is in communication connection with the central controller 401, so that when the liquid level data detected by the liquid level sensor I405 reaches a low liquid level limit, the central controller 401 starts the transportation of the raw ink and the solvent, specifically, the above process of adding the raw ink and the solvent is repeated.
The liquid level sensor II is arranged in the ink tank 3 and is in communication connection with the central controller 401, so that when liquid level data detected by the liquid level sensor II reaches an upper limit value of a liquid level, the central controller 401 starts the backflow conveying of ink in the ink tank 3.
Specifically, when the liquid level sensor II detects that the ink in the ink tank 3 reaches the upper limit of the liquid level, the transfer pump V302-1 is controlled to start, and the overflowed ink is pumped back to the ink storage barrel 104.
The alarm module 406 is in communication connection with the central controller 401, and when weight data detected by the weigher 103-2 does not reach a preset addition amount within a preset time, the central controller 401 controls the alarm module 406 to alarm so as to prompt staff that raw materials lack in the protective solvent barrel 102 in the raw ink barrel 101; when the viscosity value detected by the viscosity detection unit 2 exceeds a preset fluctuation range, the central controller 401 controls the alarm module 406 to alarm so as to prompt that the ink viscosity is abnormal.
Specifically, the alarm module 406 may be a buzzer or an indicator light, and this embodiment is not limited in particular.
In this embodiment, the viscosity detection unit 2 is also in communication connection with the central controller 401, so as to start the solvent delivery through the central controller 401 when the viscosity value detected by the viscosity detection unit 2 is higher than a preset value; and starts the conveyance of the raw ink by the central controller 401 when the viscosity value detected by the viscosity detecting unit 2 is lower than a preset value.
Specifically, when the viscosity value detected by the viscosity detection unit 2 is higher than a set value, the central controller 401 receives a signal, controls the three-way valve I102-1 to open in two directions of the solvent tank 102 and the delivery pump II102-2, starts the delivery pump II102-2 to add the solvent into the weighing tank 103, and when the amount of the solvent added detected by the weighing device 103-2 reaches a preset value, the central controller 401 controls the three-way valve I102-1 to close in the direction of the delivery pump II102-2 and controls the straight-through valve III 103-1 to open, and meanwhile, the electromagnetic valve corresponding to the manual pressure regulating valve 105-4 in the electromagnetic valve group 105-3 starts to work, so that the compressed gas enters the weighing tank 103 through the manual pressure regulating valve 105-4, and the solvent is pumped into the ink storage tank 104.
When the viscosity value detected by the viscosity detection unit 2 is lower than a set value, the central controller 401 receives a signal, controls the straight-through valve I101-1 and the straight-through valve II 101-3 to be opened, the straight-through valve III 103-1 to be closed, starts the delivery pump I101-2, pumps a set amount of raw ink into the weighing tank 103, and when the addition amount of the raw ink detected by the weighing device 103-2 reaches a preset value, the central controller 401 controls the straight-through valve I101-1 and the straight-through valve I101-3 to be closed, the delivery pump I101-2 stops working, meanwhile, the electromagnetic valve corresponding to the manual pressure regulating valve 105-4 in the electromagnetic valve group 105-3 starts working, so that compressed gas enters the weighing tank 103 through the manual pressure regulating valve 105-4, and the raw ink is pumped into the ink storage barrel 104.
The control unit 4 of this embodiment still is equipped with vice screen 403, with central controller 401 communication connection, and vice screen 403 is wireless touch screen, carries the back and takes the strong magnet, adsorbable in conveniently looking over the position with the operation, and the other demonstration of vice screen 403 are the same with display screen 402 with touch operation input function, avoid the operator to make a round trip to move the operation machine.
The embodiment realizes the automatic addition of the original ink and the solvent through the control unit, can monitor and adjust the viscosity of the ink in real time, and ensures the stability of the viscosity of the ink.
Example 3
The automatic ink supply system of the printing machine is different from the automatic ink supply system of the embodiment 2 in that the control unit of the embodiment does not include the liquid level sensor II, namely, the liquid level sensor is not arranged in the ink tank 3.
In the embodiment, when the delivery pump IV301-2 is started, and ink is supplied from the ink storage barrel 104 to the ink tank 3, the delivery pump V302-1 is started at the same time, when the liquid level of the ink tank 3 is lower than the upper limit of the liquid level, the delivery pump V302-1 idles until the liquid level in the ink tank 3 reaches the upper limit of the liquid level, and the delivery pump V302-1 pumps overflowed ink to flow back into the ink storage barrel 104.
In order to realize the idle running of the transfer pump V302-1, the transfer pump V302-1 of the embodiment is an air operated diaphragm pump, and other transfer pumps can also be air operated diaphragm pumps.
Example 4
As shown in fig. 5, the automatic ink supply system of a printing press is different from embodiment 2 in that the present embodiment further includes a color meter 5, the color meter 5 is in communication connection with the central controller 401, in actual production, a color plate to be produced is placed on the color meter 5 for color measurement, the color meter 5 can identify the type and ratio of the primary color of the ink required by the sample plate, the result is set as a preset value, and the central controller 401 automatically controls the addition of each raw ink and solvent.
The step of manually inputting the preset value can be omitted by setting the color meter 5 in this embodiment, the operation is more convenient, the color meter 5 is the existing device, and the structure of the color meter is not repeated in this embodiment.
It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (10)
1. The printing ink blending unit is characterized by comprising:
at least one raw ink barrel is arranged and used for storing raw ink;
at least one solvent barrel is arranged and used for storing the solvent;
the weighing tank is respectively communicated with the raw ink barrel and the solvent barrel, and the weighing tank is used for weighing through a weighing device so as to input the raw ink and the solvent quantitatively;
the ink storage barrel is communicated with the weighing tank to store the weighed raw ink and solvent;
and the air compressor is communicated with the weighing tank so as to pump the raw ink and the solvent into the ink storage barrel through compressed air and blow air into the ink storage barrel to fully mix the raw ink and the solvent to form the ink.
2. The ink blending unit of claim 1, wherein a lifting device is disposed above the ink barrel, and a tube connected to the ink barrel is fixed on the lifting device to draw the tube out of the ink barrel or extend the tube into the ink barrel.
3. The ink blending unit of claim 1, wherein the air compressor is further in communication with the raw ink tank to blow and agitate raw ink in the raw ink tank.
4. The automatic ink supply system of the printing machine is characterized by comprising the ink blending unit as claimed in any one of claims 1 to 3 and a viscosity detection unit, wherein the viscosity detection unit is communicated with the ink storage barrel to form a closed loop so as to monitor the viscosity of the ink in the ink storage barrel in real time.
5. The automatic ink supply system of printing machine according to claim 4, wherein the closed loop of the viscosity detection unit and the ink storage barrel is composed of an input pipeline I and an output pipeline I, and the input pipeline I is communicated with the solvent barrel to clean the viscosity detection unit.
6. The automatic ink supply system of printing press as claimed in claim 4, further comprising an ink tank, wherein said ink tank is communicated with said ink storage barrel to form a closed loop for inking and collecting ink.
7. The automatic ink supply system of the printing machine as claimed in claim 6, wherein the closed loop of the ink tank and the ink storage barrel is composed of an input pipeline II and an output pipeline II, and the input pipeline II is communicated with the output pipeline II;
the input pipeline II is communicated with the solvent barrel to clean the ink groove, and the output pipeline II is communicated at the upper limit of the liquid level of the ink groove to enable overflowed ink to flow back to the ink storage barrel from the output pipeline II.
8. The automatic ink supply system of printing press of claim 6, further comprising a control unit, said control unit comprising:
a central controller;
the display screen is in communication connection with the central controller and is used for a user to set the addition amounts of the raw ink and the solvent, the sampling interval of the viscosity detection unit, the set value of the viscosity, the fluctuation range of the viscosity and the upper limit value of the ink liquid level in the ink tank;
the weighing module is respectively in communication connection with the weighing device and the central controller, so that the central controller stops conveying of raw ink and solvent after weight data detected by the weighing device reaches a preset value;
the liquid level sensor I is arranged in the ink storage barrel and is in communication connection with the central controller, so that when liquid level data detected by the liquid level sensor I reaches a low liquid level limit, the central controller starts the conveying of raw ink and solvent;
and the alarm module is in communication connection with the central controller, so that the alarm module is controlled to give an alarm through the central controller when weight data detected by the weighing device does not reach a preset adding amount and a viscosity value detected by the viscosity detection unit exceeds a preset fluctuation range within a preset time.
9. The automatic ink supply system of printing press of claim 8, wherein said control unit further comprises:
and the liquid level sensor II is arranged in the ink tank and is in communication connection with the central controller, so that when liquid level data detected by the liquid level sensor II reaches an upper limit value of the liquid level, the central controller starts the backflow conveying of the ink in the ink tank.
10. The automatic ink supply system of printing press of claim 8, wherein the viscosity detection unit is communicatively connected to the central controller to initiate the delivery of solvent by the central controller when the viscosity value detected by the viscosity detection unit is higher than a preset value; and when the viscosity value detected by the viscosity detection unit is lower than a preset value, the conveying of the raw ink is started through the central controller.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110901767.1A CN113650415A (en) | 2021-08-06 | 2021-08-06 | Printing ink blending unit and automatic ink supply system of printing machine |
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|---|---|---|---|
| CN202110901767.1A CN113650415A (en) | 2021-08-06 | 2021-08-06 | Printing ink blending unit and automatic ink supply system of printing machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851705A (en) * | 2022-05-24 | 2022-08-05 | 湖南北罗霄科技有限责任公司 | Printing ink viscosity control system and control method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114851705A (en) * | 2022-05-24 | 2022-08-05 | 湖南北罗霄科技有限责任公司 | Printing ink viscosity control system and control method thereof |
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