Color mixing device for publication printing

Abstract

The invention relates to the technical field of printing equipment, in particular to a color mixing device for publication printing, which comprises a shell, a plurality of storage boxes are arranged on the outer top wall of the shell, ink barrels are arranged in the storage boxes, mounting seats are detachably connected to the tops of the ink barrels, and connecting rods extending into the ink barrels are detachably connected to the tops of the mounting seats. The tops of the mounting bases are fixedly connected with driving assemblies used for driving the connecting rods to move up and down. The ends, extending into the ink barrel, of the connecting rods are fixedly connected with pushing blocks. A first cutting net and a second cutting net are arranged in each ink barrel, and a first wedge block is arranged on the central axis of the side, close to the second cutting net, of each first cutting net; second wedge blocks are arranged on the two sides of the side, close to the first cutting net, of the second cutting net. According to the printing ink supply device, the printing ink can be effectively prevented from layering and caking in the printing ink supply process, full mixing of the printing ink is achieved through multi-dimensional disturbance, and therefore the uniformity of the printing ink is improved, the overall quality and color consistency of printed matter are guaranteed, the overall production efficiency is improved, and the cost expenditure is reduced.

Description

Technical Field

[0001] This invention relates to the field of printing equipment technology, and more specifically to a color mixing device for printing publications. Background Technology

[0002] In the modern printing industry, the quality of publications directly impacts readers' reading experience and market acceptance. With the development of printing technology, various printing methods such as offset printing, gravure printing, and flexographic printing are widely used in books, newspapers, magazines, and packaging. Among these, the ink tank, as a key component in printing equipment for storing and supplying ink, plays a decisive role in the stability and uniformity of the ink it provides, thus influencing the printing results.

[0003] In actual production, publication printing often involves large batches and long cycles. Furthermore, ink is stored statically in drums and warehouses for extended periods, making it prone to stratification and clumping. This manifests as pigment particles settling at the bottom of the drum, while a thin, clear liquid layer forms on top. This stratification easily leads to uneven ink supply during subsequent printing, resulting in inconsistent ink density, color deviations, and localized printing defects, ultimately affecting the overall print quality and consistency. Current solutions typically involve operators pouring ink into the ink drum before starting the machine and using a stirring device to agitate the ink, ensuring it is homogeneous. Taking a printing press from Kaisheng Electromechanical as an example, its top ink tank contains a motor-driven rotating shaft with several circumferentially arranged stirring blades. In use, ink is poured into the ink tank, and the motor drives the shaft, causing the stirring blades to horizontally agitate the ink, thus achieving uniform mixing. The ink is then conveyed to the printing press for publication. However, because the stirring blades primarily agitate the ink horizontally, they fail to adequately disturb the pigment particles that have settled heavily at the bottom of the tank, and deep-seated clumps cannot be effectively dispersed. This clumping becomes even more pronounced after prolonged ink storage. The singular horizontal agitation not only creates many dead zones but also easily leads to insufficient localized agitation, reducing ink uniformity. Furthermore, when this unevenly agitated ink and insufficiently dispersed clumps enter the printing press via the conveying system, it can easily cause localized ink volume abnormalities, resulting in problems such as spots, color differences, and even plate scraping on the printed image. These issues not only affect the appearance quality and color consistency of the publication but can also lead to rework and material waste during production, reducing overall production efficiency and increasing costs.

[0004] In conclusion, there is an urgent need to propose a color mixing device for publication printing to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a color mixing device for publication printing, which effectively prevents ink separation and clumping during ink storage and supply. It also achieves thorough ink mixing through multi-dimensional disturbance and shearing, thereby improving ink uniformity, ensuring the overall quality and color consistency of printed materials, increasing overall production efficiency, and reducing costs.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: A color matching device for printing publications includes a housing, a plurality of storage boxes provided on the top wall of the housing, each storage box containing an ink tank, each ink tank having a mounting base detachably connected to its top, each mounting base having a connecting rod detachably connected to its top extending into the ink tank, each mounting base having a drive assembly fixedly connected to its top for driving the connecting rod to move up and down, and each connecting rod having a push block fixedly connected to one end extending into the ink tank. Each ink tank is equipped with a first cutting screen and a second cutting screen. A first wedge is provided on the central axis of the side of the first cutting screen closest to the second cutting screen. A second wedge is provided on both sides of the side of the second cutting screen closest to the first cutting screen. Both the first wedge and the second wedge are right-angled triangular shapes. Each push block has a first guide groove on one side, and the first guide groove slides in cooperation with the inclined side of the first wedge; each push block has a second guide groove on the other side corresponding to the second wedge, and the second guide groove slides in cooperation with the inclined side of the second wedge; each of the sides of the first cutting mesh and the second cutting mesh that are far apart from each other has a support component extending to the outside of the ink tank to support the first cutting mesh and the second cutting mesh, and the support component is fixedly connected to the inner wall of the storage box; The outer shell contains a mixing chamber, which contains a mixing component. The bottom of each ink tank is connected to a solenoid valve, and the other end of each solenoid valve is connected to the mixing chamber. The bottom of the mixing chamber is connected to a valve, which is connected to a discharge pipe.

[0007] The technical principle of the above solution is as follows: This invention utilizes a pusher block, a first wedge block in the guide groove, and a second wedge block, all located inside the ink tank. When the pusher block reciprocates vertically under the action of the drive assembly, it drives the first and second cutting meshes to move relative to each other horizontally, thereby cutting and crushing the pigment particles and clumps that have settled at the bottom of the tank. Simultaneously, the shearing action of the first and second cutting meshes creates multi-dimensional disturbance, causing the ink to be stirred not only horizontally but also vertically by the pusher block, achieving three-dimensional mixing. The ink, after being cut and stirred evenly, enters the mixing chamber through a solenoid valve, where it is further mixed by the mixing assembly. Finally, it is conveyed to the printing press through a valve and discharge pipe, achieving a uniform ink supply.

[0008] The above approach has the following beneficial effects: 1. In this solution, a connecting rod is used to push the pusher block, causing the first wedge block to slide in the first guide groove and the second wedge block to slide in the second guide groove. This causes the first and second cutting meshes to move horizontally. Combined with the pusher block moving up and down, a three-dimensional disturbance effect is formed, which effectively cuts and disperses the deposited pigments and clumps. This solves the problem of insufficient deep stirring of ink in the prior art and significantly improves the uniformity of ink.

[0009] 2. This solution adds a mixing chamber and mixing components between the ink tank and the printing press to ensure that the ink is fully mixed again before entering the printing press, further improving the stability of ink supply.

[0010] 3. In this solution, by setting a support component on the relatively far side of the first and second cutting meshes and fixing it to the inner wall of the storage box, not only is the stability and guidance of the cutting meshes during reciprocating motion guaranteed, but the problem of uneven mixing caused by the offset or deformation of the cutting meshes is also effectively avoided.

[0011] Furthermore, each drive component includes a first motor mounted on the top of the mounting base. The output shaft of the first motor is fixedly connected to an eccentric wheel, and a slide rod is fixedly connected to each eccentric wheel. The slide rod and the connecting rod are in sliding engagement, and each connecting rod is fitted with a limiting ring fixedly connected to the top of the mounting base.

[0012] Beneficial effects: The reciprocating motion of the connecting rod is achieved through the cooperation of the eccentric wheel and the sliding rod, which in turn drives the push block to periodically apply force to the cutting mesh, causing the cutting mesh to produce stable reciprocating motion. This design not only simplifies the transmission structure and reduces energy consumption, but also ensures the smoothness and accuracy of the connecting rod movement under the guidance of the limit ring, thereby improving the overall operational reliability of the mixing device.

[0013] Furthermore, each support component includes a sleeve fixedly connected to the side of the first cutting mesh and the second cutting mesh that is away from each other. Each sleeve is equipped with a spring, and the other end of each spring is fixedly connected to a sleeve rod. The other end of each sleeve rod is fixedly connected to the inner side wall of the storage box.

[0014] Beneficial effects: By installing a spring support structure on the side of the cutting mesh furthest from the cutting mesh, the cutting mesh can maintain its elastic return during reciprocating motion, preventing deformation or displacement due to uneven force. Simultaneously, the spring's cushioning effect effectively reduces impact forces during movement, extending the service life of the cutting mesh and the overall device.

[0015] Furthermore, the stirring assembly includes a second motor installed on the outer wall of the outer shell. The output shaft of the second motor is fixedly connected to a rotating shaft that extends into the stirring chamber and is rotatably connected to the side wall of the stirring chamber. Several blades are provided on the rotating shaft.

[0016] Beneficial effects: The independent mixing chamber and mixing components allow for secondary mixing of the ink before it enters the printing press, further improving ink uniformity and reducing printing defects caused by unstable ink supply. Simultaneously, the arrangement of the paddles ensures that the ink is fully agitated and dispersed in three-dimensional space, enhancing mixing efficiency.

[0017] Furthermore, both the first and second cutting meshes are equipped with angled cutting blades.

[0018] Beneficial effects: By setting oblique cutting blades on the cutting mesh, the blades can cut and break up deposited clumps during the movement of the cutting mesh driven by the pusher, enhancing the clump-breaking ability. Compared with a simple mesh disturbance structure, this design can more efficiently disperse solidified pigment particles and improve the uniformity of mixing.

[0019] Furthermore, a controller is fixedly connected to the outer wall of the housing, the controller is electrically connected to the control panel, and the controller is electrically connected to the first motor, the second motor and the solenoid valve respectively.

[0020] Beneficial effects: By setting up a centralized controller and control panel, operators can monitor and adjust the operating status of each component in real time, realize automated control, significantly improve the convenience and intelligence of operation, and reduce the risk of manual intervention and misoperation.

[0021] Furthermore, each storage box has an identification mark on its outer wall.

[0022] Beneficial effects: By setting identification marks on the outer wall of the storage box, operators can quickly identify the type and usage status of ink when multiple barrels are arranged side by side, avoiding color deviations caused by misuse and improving the efficiency and accuracy of production management.

[0023] Furthermore, the inner wall of the ink tank, the first cutting screen, the second cutting screen, the inner wall of the mixing chamber, and the inner wall of the discharge pipe are all provided with an anti-stick coating.

[0024] Beneficial effects: The non-stick coating effectively reduces ink residue on the inner walls of the device and cutting components, making cleaning easier and preventing residual ink from drying and affecting subsequent use. It also reduces material waste and improves the durability and efficiency of the equipment.

[0025] Furthermore, both the ink tank and the storage box are made of transparent material.

[0026] Beneficial effects: Using transparent materials allows operators to visually observe the storage and stirring of ink in the container, making it easier to detect problems such as layering and clumping in a timely manner, thus improving operational safety and quality control capabilities.

[0027] Furthermore, each ink tank is equipped with a filter screen located below the solenoid valve at the bottom.

[0028] Beneficial effects: The filter screen can effectively intercept incompletely dispersed agglomerated particles, preventing them from entering the mixing chamber and the ink supply system of the printing press, thereby further improving the stability of ink supply and preventing printing defects.

[0029] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0030] Figure 1 This is a front sectional view of an embodiment of the color mixing apparatus for printing publications according to the present invention; Figure 2 A cross-sectional view of the ink tank and storage box according to an embodiment of the color mixing device for printing publications of the present invention; Figure 3 A top sectional view of the ink tank and storage box of an embodiment of the color mixing device for printing publications of the present invention; Figure 4 This is an isometric view of the connecting rod and push block in an embodiment of the color mixing device for printing publications according to the present invention.

[0031] The reference numerals in the accompanying drawings of the instruction manual include: 1. Second guide groove; 2. Connecting rod; 3. Limiting ring; 4. First guide groove; 5. Push block; 6. Storage box; 7. Ink tank; 8. First wedge; 9. Sleeve; 10. Sleeve rod; 11. Spring; 12. Housing; 13. Second wedge; 14. Mounting base; 15. Slide rod; 16. First motor; 17. Eccentric wheel; 18. Cutting blade; 19. Solenoid valve; 20. Filter screen; 21. Paddle; 22. Controller; 23. Control panel; 24. Identification mark; 25. Second motor; 26. Rotating shaft; 27. Discharge pipe; 28. Mixing chamber; 29. ​​Valve; 30. Second cutting mesh; 31. First cutting mesh. Detailed Implementation

[0032] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0035] The following detailed description illustrates the specific implementation method: Example 1:

[0036] A color mixing device for printing publications, see attached document. Figure 1 The device includes an outer casing 12, the top wall of which is provided with several storage boxes 6. Each storage box 6 has an identification mark 24 on its outer wall, and each storage box 6 contains an ink reservoir 7. Further, as shown in the attached... Figure 2 and attached Figure 3 As shown, each ink tank 7 has a detachable mounting base 14 on its top. Each mounting base 14 has a detachable connecting rod 2 extending into the ink tank 7 on its top. A drive assembly for driving the connecting rod 2 up and down is fixedly mounted on the top of each mounting base 14. Preferably, the drive assembly includes a first motor 16 mounted on the mounting base 14. An eccentric wheel 17 is keyed to the output shaft of the first motor 16. A sliding rod 15 is welded to each eccentric wheel 17. The sliding rod 15 and the connecting rod 2 are slidably connected. Each connecting rod 2 is fitted with a limiting ring 3, which is welded to the top of the mounting base 14. Thus, the connecting rod 2 can achieve stable vertical movement under the guidance of the limiting ring 3. Reference Appendix Figure 2 and attached Figure 4The other end of the connecting rod 2 extends into the ink tank 7 and is welded with a pusher block 5. Furthermore, each ink tank 7 is provided with a first cutting mesh 31 and a second cutting mesh 30, and both the first and second cutting meshes 31 and 30 are provided with angled cutting blades 18 for cutting and dispersing pigment deposits. In particular, each first cutting mesh 31 has a first wedge 8 on its central axis near the side of the second cutting mesh 30, and each second cutting mesh 30 has a second wedge 13 symmetrically arranged on its side near the first cutting mesh 31, with both the first wedge 8 and the second wedge 13 forming a right-angled triangle shape. Furthermore, one side of the push block 5 is provided with a first guide groove 4, which slides in engagement with the inclined side of the first wedge block 8; the other side of the push block 5 is provided with several second guide grooves 1 corresponding to the second wedge block 13 respectively, and all the second guide grooves 1 slide in engagement with the inclined side of the second wedge block 13. Through the above structure, it is possible to ensure that the first cutting mesh 31 and the second cutting mesh 30 achieve efficient horizontal disturbance under the drive of the push block 5; Furthermore, support components extending to the outside of the ink tank 7 are welded to the sides of the first cutting mesh 31 and the second cutting mesh 30 that are far apart from each other. These support components support the horizontal reciprocating motion of the first cutting mesh 31 and the second cutting mesh 30. Each support component includes a sleeve 9, and a spring 11 is welded inside the sleeve 9. A rod 10 is welded to the other end of each spring 11, and the other end of each rod 10 is welded to the inner wall of the storage box 6. This support structure provides elastic buffering and reset for the first cutting mesh 31 and the second cutting mesh 30, ensuring the reliability and repeatability of the cutting motion. Preferably, a stirring chamber 28 is provided inside the outer casing 12, and a stirring assembly for stirring ink is installed inside the stirring chamber 28. The stirring assembly includes a second motor 25 installed on the outer wall of the outer casing 12. The output shaft of the second motor 25 is welded to a rotating shaft 26 extending into the stirring chamber 28, and the other end of the rotating shaft 26 is rotatably connected to the side wall of the stirring chamber 28. A plurality of blades 21 are evenly distributed on the outer periphery of the rotating shaft 26, thereby achieving full agitation and mixing of the ink. Meanwhile, each ink tank 7 is connected to a solenoid valve 19 at its bottom, and the other end of each solenoid valve 19 is connected to the mixing chamber 28. To prevent incompletely dispersed pigment particles from entering the mixing chamber 28, each ink tank 7 is equipped with a filter screen 20 located below the solenoid valve 19. Furthermore, the bottom of the mixing chamber 28 is connected to a valve 29, which is connected to a discharge pipe 27. The discharge pipe 27 is ultimately connected to the printing press, thereby ensuring that the ink is fully stirred and filtered before entering the printing stage. In addition, a controller 22 is installed on the outer wall of the outer casing 12. The controller 22 is electrically connected to the control panel 23, and the controller 22 is electrically connected to the first motor 16, the second motor 25 and the solenoid valve 19 respectively, thereby realizing centralized control and operation of the entire device.

[0037] The specific implementation process is as follows: Before printing, the operator first installs the discharge pipe 27 on the printing equipment, then opens the mounting base 14, and adds inks of different colors into the ink tanks 7 in the corresponding storage boxes 6 according to the identification marks 24 on the outer wall of the storage box 6. Then, the mounting base 14 is installed back on top of the ink tank 7 to achieve sealing. Subsequently, the control panel 23 outputs a command to the controller 22 to send a start command to the first motor 16. The output shaft of the first motor 16 drives the eccentric wheel 17 to rotate. The eccentric wheel 17 pushes the slide rod 15 to make periodic horizontal and vertical reciprocating motions. The sliding cooperation between the slide rod 15 and the connecting rod 2 transmits the vertical motion to the connecting rod 2. At the same time, the connecting rod 2 achieves smooth and precise up and down movement under the guidance of the limit ring 3 on the mounting base 14. The push block 5 fixed at the lower end of the connecting rod 2 moves back and forth vertically in the ink tank 7.

[0038] As the pusher block 5 moves vertically downwards, its first guide groove 4 on one side slides into the inclined edge of the first wedge 8 of the first cutting mesh 31, and its second guide groove 1 on the other side slides into the inclined edge of the second wedge 13 of the second cutting mesh 30. The pusher block 5 presses downwards, causing the first cutting mesh 31 and the second cutting mesh 30 to move horizontally away from each other within the ink tank 7. During this process, the first cutting mesh 31 and the second cutting mesh 30 squeeze and divide the ink towards the side wall of the ink tank 7, cutting and splitting the clumps of ink. At the same time, the spring 11 inside the sleeve 9 is compressed, gaining elastic potential energy. Subsequently, as the pusher block 5 moves vertically upwards, the more viscous ink at the bottom of the ink tank 7 is pushed upwards, while the first wedge 8 and the second wedge 13 gradually and completely exit the sliding engagement range of the first guide groove 4 and the second guide groove 1. At this time, the spring 11 inside the sleeve 9 returns to its original position under the action of elastic potential energy, pushing the first cutting mesh 31 and the second cutting mesh 30 back to their original positions, thereby applying a shearing and dividing action to the ink between the cutting meshes again, achieving secondary cutting and mixing. The vertical reciprocating motion combined with the horizontal reciprocating motion of the cutting mesh creates a three-dimensional disturbance effect, which can effectively cut the deposited pigment clumps and disperse the ink, significantly improving the uniformity of the ink and the stability of the ink supply. Furthermore, when the obliquely placed cutting blades 18 in the first cutting screen 31 and the second cutting screen 30 move relative to each other on the first cutting screen 31 and the second cutting screen 30, they continuously cut the pigment particles and clumps deposited at the bottom of the barrel, thereby achieving the dispersion and cutting of the ink.

[0039] After initial cutting, the solenoid valve 19 at the bottom of the ink tank 7 opens under the command of the controller 22. The ink is filtered through the filter screen 20, blocking large particles that are not fully dispersed, ensuring that the ink entering the mixing chamber 28 is uniform and free of impurities. Subsequently, the second motor 25 inside the mixing chamber 28 starts, driving the rotating shaft 26 and its blades 21 to rotate. Through multi-directional and multi-layered tumbling, the ink is further mixed evenly, eliminating local uneven concentration and potential sedimentation. After a set stirring time, the valve 29 at the bottom of the mixing chamber 28 opens, and the ink is smoothly delivered to the printing press through the discharge pipe 27, ensuring the continuity and stability of ink supply, thereby achieving high-quality printing results.

[0040] Throughout the operation, the controller 22 adjusts the working status of the first motor 16, the second motor 25, and the solenoid valve 19 in real time via the control panel 23. This allows for flexible control of the linkage 2's movement frequency, cutting intensity, stirring speed, and ink supply rhythm, thereby achieving automated and intelligent ink mixing and dispersion. Through the above design and operation, this device can not only effectively cut and disperse deposited pigments to prevent clumping, but also ensure that the ink is fully mixed and filtered before entering the printing press, significantly improving the uniformity and stability of the printing ink, enhancing the printing quality and production efficiency of publications, and fully demonstrating the inventiveness and practicality of this invention.

[0041] Experimental Objective The improvements of the device provided in Example 1 (hereinafter referred to as the "new device") compared to the existing horizontal stirring device for printing presses from Kaisheng Electromechanical (hereinafter referred to as the "control device") are verified in the following aspects: Ink color difference stability (ΔE, the smaller the better). Large particle / undispersed particle ratio (>50 μm, percentage) Printing defect rate (spots / color difference, etc., unit: number of defects / 100 m²) Ink preparation time (min) Number of times the conveyor / printing system is blocked (times / 1000 m²) Ink waste per batch (kg / batch) Experimental Samples and Environment Equipment: The same model of printing press (with fixed printing parameters) is connected to the ink supply systems of the new device and the control device respectively.

[0042] Ink: Commercial printing paste from the same batch that has not been used and stored (it exhibits chromatography / caking after prolonged standing).

[0043] Batch and replicate number: n = 20 batches per group (sufficient for routine t-tests and robust estimates). Each batch consists of a complete process of color matching → pre-processing → printing 100 m².

[0044] Controlled variables: ambient temperature (22±2℃), same operators, same printing plates and paper, same printing speed and pressure, same initial ink volume.

[0045] Data acquisition: Record all indicators for each batch and save the samples for particle size detection and color difference measurement (spectral colorimeter, laser particle size analyzer, visual / automatic defect detection camera).

[0046] Measurement method (practical and feasible) ΔE (color difference): Measured at 10 selected locations on the printed sample using a spectrophotometer and the average value was taken (CIEDE2000 or ΔE*ab).

[0047] 50 μm particle ratio: The ink was measured by passing it through a standard sieve or a laser particle size analyzer; the percentage of the total mass was calculated.

[0048] Printing defect rate: The number of defect points (controlled threshold) is counted on a 100 m² area using an automatic defect detection camera.

[0049] Ink preparation time: The time from starting the stirring / color mixing program to the point where ink can be stably dispensed into the machine (minutes).

[0050] Number of blockages: Records the number of conveyor or printer blockage events caused by large particles / deposits during this batch run.

[0051] Ink waste: The amount of ink (kg / batch) generated due to disposal and rinsing during pretreatment.

[0052] Statistical analysis methods Each continuous variable is expressed as mean ± standard deviation.

[0053] The two groups were compared using a two-sample t-test (with Welch correction), and if the distribution deviated from normality, the Mann–Whitney U test was used.

[0054] Significance level α = 0.05. Report effect size (Cohen's d) to account for practical differences.

[0055] For more stringent conclusions, a power analysis can be performed (n=20 is sufficient to obtain a power of >0.8 when the expected effect is moderate to large).

[0056] Both systems used the same batch of settled ink, with 20 independent batches (100 kg per batch or actual production batch) from each system. The entire pretreatment and printing process was completed under a unified environment. The control group used the existing horizontal stirring process in the factory (starting the stirring blades for 15–25 minutes until visual uniformity was observed), recording the preparation time and taking samples. The new device executed the cutting-spring 11 buffer-stirring chamber 28 secondary mixing process of this invention, recording the time and taking samples. The samples were tested for ΔE and particle size distribution according to the measurement method; during printing, the number of defect points and on-site clogging events within 100 m² were counted; and the amount of ink waste was recorded. Data from the 20 batches were summarized, and descriptive statistics and hypothesis testing (t-test, effect size calculation) were performed.

[0057] Table 1 Experimental Data and Statistical Results illustrate: ΔE: In commercial printing, ΔE < 1 is usually "difficult to distinguish with the naked eye". This invention can stably control the color difference within ~0.9, while horizontal stirring is usually in the range of 1.5–3; the example uses 2.2.

[0058] Particle ratio and defects: Long-term settling will form measurable large particles; traditional horizontal stirring is difficult to completely disperse, resulting in obvious defects.

[0059] Preparation time: The new device significantly reduces preparation time (6 min in example) through mechanical cutting, sinking and then tilting disturbance, and secondary mixing in the mixing chamber 28, while manual / horizontal mixing usually takes 15–30 min.

[0060] Clogs and waste: Undispersed clumps cause transport blockages and require cleaning waste ink, so the control group is worse.

[0061] in conclusion: Based on the above example experiments, the new device significantly outperforms the existing horizontal mixing scheme in all key indicators: color difference is more stable (ΔE is significantly reduced), the proportion of large particles and printing defects is significantly reduced, ink preparation time and ink waste are significantly reduced, and transport / printing blockage events are greatly reduced. Statistical tests show that the differences are highly significant (p<0.001) with a large effect size, indicating that the improvements brought by the new device are not only statistically significant but also have significant industrial application value, improving printing quality, reducing rework rates and production costs, and enhancing equipment operational reliability.

[0062] Example 2:

[0063] As attached Figure 2 As shown, the difference from Embodiment 1 is that the inner wall of the ink tank 7, the first cutting screen 31, the second cutting screen 30, the inner wall of the mixing chamber 28, and the inner wall of the discharge pipe 27 are all coated with an anti-stick coating.

[0064] The specific implementation process is as follows: During the device manufacturing process, a wear-resistant and corrosion-resistant non-stick coating material is used, which is uniformly applied to the inner wall of the ink tank 7 and the surfaces of related cutting and stirring components by spraying or film coating. When the device is running, the non-stick coating can significantly reduce the adhesion of ink to the inner wall of the device and the surface of the cutting components, thereby effectively reducing the accumulation of residual ink. This not only reduces the difficulty of cleaning the equipment after shutdown and avoids the impact of residual ink drying on the normal use of subsequent batches, but also reduces ink waste and further improves ink utilization. On the other hand, the non-stick coating can also reduce the wear rate of component surfaces and extend the service life of the cutting mesh and stirring chamber 28, thereby improving the overall durability and working efficiency of the device.

[0065] Example 3:

[0066] As attached Figure 3 As shown, the difference from the above embodiment is that both the ink tank 7 and the storage box 6 are made of transparent material.

[0067] The specific implementation process is as follows: The ink tank 7 and the storage box 6 are preferably made of transparent high-strength engineering plastic or impact-resistant glass. During the operation of the device, the transparent structure allows operators to directly observe the storage, stirring, and transportation of ink within the tank, facilitating the timely detection of problems such as ink layering, clumping, or sedimentation, and enabling prompt adjustment measures when necessary. Furthermore, the use of transparent materials improves the safety and controllability of the operation process, avoiding printing defects caused by uneven ink supply, thereby enhancing the overall quality control level and production stability.

[0068] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A color adjustment device for publication printing, comprising a housing (12), characterized in that, The outer top wall of the shell (12) is provided with a plurality of storage boxes (6), the storage boxes (6) are each provided with an ink barrel (7), the top of the ink barrel (7) is detachably connected with a mounting seat (14), the top of the mounting seat (14) is detachably connected with a connecting rod (2) extending into the ink barrel (7), the top of the mounting seat (14) is fixedly connected with a driving assembly for driving the connecting rod (2) to move up and down, and one end of the connecting rod (2) extending into the ink barrel (7) is fixedly connected with a push block (5). The ink barrel (7) is provided with a first cutting net (31) and a second cutting net (30), the first cutting net (31) is provided with a first wedge (8) on the central axis of one side close to the second cutting net (30); the second cutting net (30) is provided with a second wedge (13) on both sides of one side close to the first cutting net (31), and the first wedge (8) and the second wedge (13) are both in the shape of a right triangle. The push block (5) is provided with a first guide groove (4) on one side, and the first guide groove (4) is in sliding fit with the inclined edge of the first wedge (8); the push block (5) is provided with a second guide groove (1) corresponding to the second wedge (13) on the other side, and the second guide groove (1) is in sliding fit with the inclined edge of the second wedge (13); the first cutting net (31) and the second cutting net (30) are provided with a supporting assembly extending out of the ink barrel (7) for supporting the first cutting net (31) and the second cutting net (30) on the sides away from each other, and the supporting assembly is fixedly connected with the inner side wall of the storage box (6). The shell (12) is provided with a stirring cabin (28), the stirring cabin (28) is provided with a stirring assembly, the bottom of the ink barrel (7) is communicated with an electromagnetic valve (19), the other end of the electromagnetic valve (19) is communicated with the stirring cabin (28), the bottom of the stirring cabin (28) is communicated with a valve (29), and the valve (29) is communicated with a discharge pipe (27).

2. The color matching device for printing of publications according to claim 1, characterized in that, The driving assembly comprises a first motor (16) mounted on the top of the mounting seat (14), the output shaft of the first motor (16) is fixedly connected with an eccentric wheel (17), the eccentric wheel (17) is fixedly connected with a sliding rod (15), the sliding rod (15) and the connecting rod (2) are in sliding fit, and the connecting rod (2) is sleeved with a limiting ring (3) fixedly connected to the top of the mounting seat (14).

3. The color matching device for printing of publications according to claim 2, characterized in that, The supporting assembly comprises a sleeve (9) fixedly connected with the sides of the first cutting net (31) and the second cutting net (30) away from each other, the sleeve (9) is provided with a spring (11) therein, the other end of the spring (11) is fixedly connected with a sleeve rod (10), and the other end of the sleeve rod (10) is fixedly connected with the inner side wall of the storage box (6).

4. The color matching device for printing of publications according to claim 3, characterized in that, The stirring assembly comprises a second motor (25) mounted on the outer wall of the shell (12), the output shaft of the second motor (25) is fixedly connected with a rotating shaft (26) extending into the stirring cabin (28) and rotatably connected with the side wall of the stirring cabin (28), and a plurality of paddle blades (21) are arranged on the rotating shaft (26).

5. The color matching device for printing of publications according to claim 4, characterized in that, The first cutting net (31) and the second cutting net (30) are provided with obliquely arranged cutting blades (18).

6. The color matching device for printing of publications according to claim 5, characterized in that, The outer side wall of the shell (12) is fixedly connected with a controller (22), the controller (22) is electrically connected with a control panel (23), and the controller (22) is electrically connected with the first motor (16), the second motor (25) and the electromagnetic valve (19) respectively.

7. The color matching device for printing of publications according to claim 6, characterized in that, The outer wall of the storage box (6) is provided with an identification mark (24).

8. The color matching device for printing of publications according to claim 7, characterized in that, The inner wall of the ink barrel (7), the first cutting net (31), the second cutting net (30), the inner wall of the stirring cabin (28) and the inner wall of the discharge pipe (27) are all provided with an anti-sticking coating.

9. The color matching device for printing of publications according to claim 8, characterized in that, The ink barrel (7) and the storage box (6) are both made of transparent material.

10. The color matching device for printing of publications according to claim 9, characterized in that, The bottom of the ink barrel (7) is provided with a filter screen (20) located below the electromagnetic valve (19).

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