An ink transfer system for a print unit of a rotary printing press

By designing a layered printing roller and an ink transfer system adapted to the rotary table, the color difference problem caused by ink sedimentation in rotary printing presses was solved, achieving high-quality printing results, especially clear printing on thicker paper, and eliminating the impact of electrostatic adsorption on the paper.

CN117162653BActive Publication Date: 2026-04-28GUANGDONG VOCATIONAL & TECHNICAL COLLEGE
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGDONG VOCATIONAL & TECHNICAL COLLEGE
Filing Date
2023-06-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

When a rotary printing press is not in use, the ink is prone to sedimentation due to gravity, which can cause color separation and affect the printing effect.

Method used

An ink transfer system for a rotary printing press unit was designed, which adopts a layered printing rotary wheel and an adapter turntable. The ink is stirred by a composite connecting plate, the contact distance between the printing rotary wheel and the paper is controlled, and a cleaning component and a control component are combined to eliminate electrostatic adsorption and prevent paper misalignment and color difference.

Benefits of technology

It effectively avoids color difference problems caused by ink layering, ensuring printing quality, especially clear printing on thicker paper, and eliminates the impact of electrostatic adsorption on paper.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117162653B_ABST
    Figure CN117162653B_ABST
Patent Text Reader

Abstract

The application belongs to the technical field of printing machines, in particular to an ink transmission system of a printing unit of a rotary printing machine, which comprises a supporting table, a suction plate fixedly connected to the shaft center of the top surface of the supporting table, running boxes fixedly connected to the two sides of the top of the supporting table, air-drying plates fixedly connected to the top of the inner wall of the running box, a transport rotating rod rotationally connected to the middle of the inner cavity of the running box, conductive rods fixedly connected to the two sides of the lower surface of the supporting table, printing components, and control components arranged at the two ends of the printing components. The printing rotary wheel of the device is designed in a layered structure. After ensuring that the printing rotary wheel can perform printing work through the added ink in the inner cavity, the matching rotary disc can relatively rotate with the printing rotary wheel, so as to continuously shake the ink and stir the ink through the composite connecting plate, so that the ink dyed on the outer surface of the printing rotary wheel is not prone to color difference due to layering.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of printing press technology, specifically an ink transfer system for a rotary printing press printing unit. Background Technology

[0002] A rotary printing press is an offset printing machine that uses a continuous, uninterrupted feeding of roll-type paper to transfer the printed image from the printing plate onto the printing cylinder, and then from the printing cylinder onto the paper. The rotary printing press includes an inking system mounted on the frame. The ink transfer process typically involves the inking roller carrying ink from the ink fountain to the inking roller, then the spreading roller spreading the ink from the inking roller into a uniform film, which is then transferred to the printing cylinder by the inking roller.

[0003] Because rotary printing presses have a large ink storage capacity, when the press is not in operation, the ink is prone to sedimentation due to gravity, which can lead to color stratification, i.e., the upper layer of ink is lighter and the lower layer is darker. This results in a poorer overall printing effect, so improvements are needed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this invention is as follows: an ink transfer system for a rotary printing press printing unit, comprising a support platform, an adsorption plate fixedly connected to the axis at the top of the support platform surface, a rotating box fixedly connected to both sides of the top of the support platform, a drying plate fixedly connected to the top of the inner wall of the rotating box, a transport rod rotatably connected to the center of the inner cavity of the rotating box, and conductive rods fixedly connected to both sides of the lower surface of the support platform, including a printing component, with control components at both ends of the printing component, the surface of the printing component being away from the support platform. A cleaning component is connected to one side of the printing component; the printing component has a printing roller, both ends of which are rotatably connected to an adapter turntable. An insertion shaft is rotatably connected to the axis of the inner wall of the adapter turntable. Composite connecting plates are evenly arranged in the middle of the surface of the insertion shaft. Control motors are fixedly connected to both ends of the insertion shaft. A compression tube is fixedly connected to the end of the control motor away from the printing roller. Side branch pipes are evenly arranged in the inner cavity of the adapter turntable. A transfer tube is fixedly connected to the bottom end of the compression tube. An infusion tube is fixedly connected to the middle of the bottom of the transfer tube's inner cavity. When using this device, the paper to be printed is inserted into the rotating box on the left side of the support platform. Then, under the rotation of the transport rotor, the paper is pushed from left to right. During this process, the drying plate blows air from top to bottom onto the printing surface of the material, causing the paper to adhere to the inner wall of the rotating box. When the paper is transported to the upper surface of the adsorption plate, it is printed by the rotation of the printing roller, thus performing the photocopying process. This device can adjust the actual distance between the outer surface of the printing roller and the suction plate through the control components. Therefore, when printing on thicker paper, it can avoid the problem of excessive pressure on the paper, which would cause the ink to penetrate too deeply and make the finished print blurry. The suction plate can ensure that the paper does not easily shift during the printing process.

[0005] Furthermore, the surface of the adapter tube is fixedly connected to the middle of the inner cavity of the support platform, the bottom end of the infusion tube extends to the outside of the support platform, and the inner cavity of the adapter tube is filled with dye. The inner cavity of the printing roller is provided with a liquid storage tank, and a thin tube is fixedly connected to the inner cavity of the printing roller through the liquid storage tank. The end of the composite connecting plate away from the plug shaft extends into the interior of the liquid storage tank. When not printing, the printing roller is lifted a certain distance by the control components on both sides. At this time, the compression tube is stretched. Due to the pressure, the adapter tube draws ink from the bottom through the infusion tube. When the printing roller is working, the control components need to adjust the distance between itself and the adsorption plate so that the printing roller can fully contact the upper surface of the paper. At this time, the folded compression tube transports the ink inside to the interior of the printing roller through the side branch pipe. The control motor directly controls the rotation of the plug shaft, and the plug shaft controls the rotation of the outer surface of the printing roller through the four composite connecting plates on the outer surface. After the ink enters the printing roller, it passes through the composite connecting plate into the inner cavity of the printing roller, and then permeates the outermost layer of the printing roller through a thin tube, enabling the printing roller to perform printing. The adapter disc remains relatively stationary. Therefore, as the printing roller rotates, the composite connecting plate continuously sweeps across the surface of the adapter disc. Each time the side of the composite connecting plate passes through the opening of the adapter disc, the side branch pipe impacts the ink in the inner cavity of the printing roller, causing the ink inside the printing roller to vibrate. This device employs a layered structure design for the printing roller. After ensuring that the printing roller can perform printing with the ink added to its inner cavity, the adapter disc can rotate relative to the printing roller, continuously vibrating the ink and agitating it through the composite connecting plate. This prevents color differences caused by layering of the ink on the outer surface of the printing roller.

[0006] Furthermore, the cleaning component includes an arched plate, with a thrust gauge fixedly connected to the middle of the inner wall of the arched plate. An arc-shaped concave plate is fixedly connected to the bottom end of the thrust gauge. Fine brushes are evenly arranged within the inner cavity of the arc-shaped concave plate, and buffer spring bands are fixedly connected to both sides of the surface of the arc-shaped concave plate. The end of the buffer spring band away from the arc-shaped concave plate is fixedly connected to the inner wall of the arched plate. The inner wall of the arc-shaped concave plate is slidably connected to the surface of the printing roller via the fine brushes. Both ends of the arched plate are fixedly connected to the top of the surface of the operating box. During each lifting and lowering process, the printing roller of this device contacts the brushes of the upper arc-shaped concave plate, thus cleaning its outer surface through its own rotation. Simultaneously, under the restraint of the buffer spring bands, if the printing roller rotates eccentrically, the arc-shaped concave plate can correct and buffer it, preventing large-scale jumping of the printing roller.

[0007] Furthermore, the control component includes a fixed housing. A vacuum pump is fixedly connected to one side of the inner wall of the fixed housing, and a built-in slider is slidably connected to the other side of the inner wall of the fixed housing. A rotor motor is fixedly connected to the bottom end of the vacuum pump. A telescopic hollow tube is fixedly connected to the top of the inner cavity of the fixed housing, and a grooved clamp is fixedly connected to the top end of the telescopic hollow tube. Adapter guide plates are fixedly connected to both the upper and lower ends of the built-in slider. The control component pressurizes the interior of the fixed housing through the vacuum pump, causing the telescopic hollow tube to extend. The grooved clamp then stretches the compression tube. Similarly, when the vacuum pump evacuates air from the fixed housing, the telescopic hollow tube shortens due to pressure, pulling the grooved clamp downwards. The pressurization of the vacuum pump also pushes the built-in slider towards the support platform, thereby pushing the adapter guide plates on both sides. At this time, the upper adapter guide plate inserts into the interior of the adsorption plate, and the lower adapter guide plate contacts the conductive rod, thus guiding the static electricity inside the adsorption plate to the outside.

[0008] Furthermore, the end of the adapter guide plate near the built-in slider is slidably connected to the inner cavity of the fixed shell. A limiting spring is fixedly connected to the middle of the inner cavity of the built-in slider. The end of the limiting spring away from the built-in slider is fixedly connected to the inner cavity of the fixed shell. One end of the fixed shell is fixedly connected to one side of the support platform surface. The control components of this device can not only control the height of the printing roller, but also bridge the adapter guide plates on both sides with the upper adsorption plate and the lower conductive rod respectively during each lifting operation, thereby guiding the static electricity generated inside the adsorption plate to the outside and eliminating the static electricity's adsorption effect on the paper.

[0009] Furthermore, the composite connecting plate includes a hollow connecting plate. A perforated insert plate is fixedly connected to the top of the hollow connecting plate. Sealing partitions are slidably connected to both sides of the inner wall of the hollow connecting plate via guide strips. A clamping block is slidably connected to the middle of the inner cavity of the sealing partition near the insertion shaft. A tension strip is fixedly connected to the inner cavity of the clamping block near the insertion shaft. A tension gauge is fixedly connected to the inner cavity of the sealing partition away from the insertion shaft via a tension rod. A through slot is formed on the inner cavity of the hollow connecting plate near the insertion shaft. During the rotation of the hollow connecting plate, the sealing partition, pulled by the tension strip, slides towards the perforated insert plate under centrifugal force, thereby opening the opening inside the hollow connecting plate. Ink enters the interior of the hollow connecting plate through the through slot, and then, guided by the perforated insert plate under centrifugal force, enters the inner cavity of the printing roller. When the printing roller stops rotating, the tension strip separates the ink in the inner cavity of the printing roller from the ink on the inner wall through tension.

[0010] Furthermore, the surface of the tension bar is slidably connected to the inner wall of the hollow connecting plate, and the end of the tension bar away from the sealing partition is fixedly connected to the inner cavity of the hollow connecting plate through a through groove. There are four composite connecting plates. During the sliding process of the sealing partition due to centrifugal force, the tension bar applies a pulling force to the clamping block. At this time, the clamping block and the sealing partition undergo slight displacement, which in turn causes the tension rod to pull the tension gauge, thereby determining the actual magnitude of the centrifugal force experienced by the sealing partition. During the rotation of the printing roller, the device can open the inner cavity opening blocked by the sealing partition by controlling its own rotation speed, allowing for the replenishment of ink to the inner cavity of the printing roller. Simultaneously, it can also seal the ink inside the sealing partition based on the centrifugal force experienced by the sealing partition, preventing excessive ink saturation on the printing surface of the printing roller.

[0011] The beneficial effects of this invention are as follows:

[0012] 1. The printing roller of this device adopts a layered structure design. After ensuring that the printing roller can carry out printing work through the ink added to the inner cavity, the adapter turntable can rotate relative to the printing roller, thereby continuously vibrating the ink and stirring it through the composite connecting plate, so that the ink on the outer surface of the printing roller is less likely to have color difference problems due to layering.

[0013] 2. This device can adjust the actual distance between the outer surface of the printing roller and the adsorption plate through the control components. Therefore, when printing on thicker paper, it can avoid excessive pressure on the paper, which would cause the ink to penetrate too deeply and make the finished print blurry. The adsorption plate can ensure that the paper does not easily shift during the printing process.

[0014] 3. During each lifting and lowering process, the printing roller of this device will come into contact with the brush of the upper arc-shaped concave plate, and then clean the outer surface through its own rotation. At the same time, under the restriction of the buffer spring belt, if the printing roller rotates eccentrically, the arc-shaped concave plate can correct and buffer it, avoiding large-scale jumping of the printing roller.

[0015] 4. The control components of this device can not only control the height of the printing roller, but also bridge the two side guide plates with the upper adsorption plate and the lower conductive rod respectively during each lifting operation, thereby guiding the static electricity generated inside the adsorption plate to the outside and eliminating the adsorption effect of static electricity on the paper.

[0016] 5. During the rotation of the printing roller, the device can open the inner cavity opening blocked by the sealing plate by controlling its own rotation speed, so as to replenish the inner cavity of the printing roller with ink. At the same time, it can also seal the ink inside the sealing plate by the centrifugal force, so as to avoid the problem of excessive ink contamination on the printing surface of the printing roller. Attached Figure Description

[0017] Figure 1 This is the front view of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a side view of the present invention;

[0020] Figure 4 This is a schematic diagram of the printing roller of the present invention;

[0021] Figure 5 This is a cross-sectional view of the printed component of the present invention;

[0022] Figure 6 This is a cross-sectional view of the control component of the present invention;

[0023] Figure 7 This is a cross-sectional view of the composite connecting plate of the present invention;

[0024] Figure 8 This is a cross-sectional view of the sealing partition of the present invention.

[0025] In the diagram: 1. Support platform; 11. Adsorption plate; 12. Rotating box; 13. Drying plate; 14. Transport rotating rod; 15. Conductive rod; 2. Cleaning component; 21. Arched plate; 22. Thrust gauge; 23. Arc-shaped concave plate; 24. Buffer spring belt; 3. Printing component; 31. Printing roller; 32. Infusion tube; 33. Compression tube; 34. Side branch tube; 35. Control motor; 36. Adaptor turntable; 37. Thin tube; 38. Insertion shaft; 39. Adapter pipe; 310. Liquid storage tank; 4. Control components; 41. Fixed housing; 42. Air pump; 43. Rotor motor; 44. Telescopic hollow tube; 45. Groove clamp; 46. Built-in slider; 47. Adapter guide plate; 48. Restriction spring; 5. Composite connecting plate; 51. Hollow connecting plate; 52. Perforated insert plate; 53. Tension bar; 54. Through slot; 6. Sealing partition; 61. Clamping block; 62. Tension rod; 63. Tension gauge. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0027] Example 1, please refer to Figures 1-5 The present invention provides a technical solution: an ink transfer system for a rotary printing press printing unit, comprising a support platform 1, an adsorption plate 11 fixedly connected to the axis at the top of the support platform 1, a rotating box 12 fixedly connected to both sides of the top of the support platform 1, a drying plate 13 fixedly connected to the top of the inner wall of the rotating box 12, a transport rotating rod 14 rotatably connected to the middle of the inner cavity of the rotating box 12, and conductive rods 15 fixedly connected to both sides of the lower surface of the support platform 1, and a printing component 3, with control components 4 provided at both ends of the printing component 3, and a cleaning component 2 connected to the side of the surface of the printing component 3 away from the support platform 1.

[0028] The printing component 3 has a printing roller 31, with a matching turntable 36 rotatably connected to both ends of the printing roller 31. A plug-in shaft 38 is rotatably connected to the axis of the inner wall of the matching turntable 36. A composite connecting plate 5 is evenly arranged in the middle of the surface of the plug-in shaft 38. A control motor 35 is fixedly connected to both ends of the plug-in shaft 38. A compression tube 33 is fixedly connected to the end of the control motor 35 away from the printing roller 31. Side branch tubes 34 are evenly arranged in the inner cavity of the matching turntable 36. A transfer tube 39 is fixedly connected to the bottom end of the compression tube 33. An infusion tube 32 is fixedly connected to the middle of the bottom of the inner cavity of the transfer tube 39.

[0029] The surface of the adapter tube 39 is fixedly connected to the middle of the inner cavity of the support platform 1, the bottom end of the infusion tube 32 extends to the outside of the support platform 1, and the inner cavity of the adapter tube 39 is filled with dye.

[0030] The printing roller 31 has a liquid storage tank 310 in its inner cavity. A thin tube 37 is fixedly connected to the inner cavity of the printing roller 31 through the liquid storage tank 310. The end of the composite connecting plate 5 away from the plug shaft 38 extends into the interior of the liquid storage tank 310.

[0031] When using the device, insert the paper to be printed into the rotating box 12 on the left side of the support platform 1. Then, under the rotation of the transport rotating rod 14, the paper is pushed from left to right. During this process, the drying plate 13 blows air from top to bottom onto the printing surface of the material, so that the paper adheres to the inner wall of the rotating box 12. When the paper is transported to the upper surface of the adsorption plate 11, it is printed by the rotation of the printing roller 31, and the paper is photocopied.

[0032] When not printing, the printing roller 31 is lifted a certain distance by the control components 4 on both sides. At this time, the compression tube 33 is stretched. Due to the pressure, the transfer tube 39 draws ink from the bottom through the infusion tube 32. When the printing roller 31 is working, the control component 4 needs to adjust the distance between itself and the adsorption plate 11 so that the printing roller 31 can fully contact the upper surface of the paper. At this time, the folded compression tube 33 delivers the ink inside to the inside of the printing roller 31 through the side branch tube 34. The control motor 35 directly controls the rotation of the plug shaft 38. The plug shaft 38 controls the rotation of the outer surface of the printing roller 31 through the four composite connecting plates 5 on the outer surface.

[0033] After the ink enters the printing roller 31, it enters the inner cavity of the printing roller 31 through the composite connecting plate 5, and then permeates the outermost layer of the printing roller 31 through the thin tube 37, enabling the printing roller 31 to perform printing. The adapter disk 36 remains relatively stationary. Therefore, as the printing roller 31 rotates, the composite connecting plate 5 will continuously sweep across the surface of the adapter disk 36. Each time the side of the composite connecting plate 5 passes through the opening of the adapter disk 36, the side branch pipe 34 will exert an impact on the ink in the inner cavity of the printing roller 31 through the opening of the adapter disk 36, thereby causing the ink in the inner cavity of the printing roller 31 to vibrate.

[0034] Example 2, please refer to Figures 1-8 The present invention provides a technical solution: Based on the first embodiment, the cleaning component 2 includes an arched plate 21, a thrust gauge 22 is fixedly connected to the middle of the inner wall of the arched plate 21, an arc-shaped concave plate 23 is fixedly connected to the bottom end of the thrust gauge 22, fine brushes are evenly arranged in the inner cavity of the arc-shaped concave plate 23, and buffer spring belts 24 are fixedly connected to both sides of the surface of the arc-shaped concave plate 23.

[0035] The end of the buffer spring band 24 away from the arc-shaped concave plate 23 is fixedly connected to the inner wall of the arched plate 21. The inner wall of the arc-shaped concave plate 23 is slidably connected to the surface of the printing roller 31 through a fine brush. Both ends of the arched plate 21 are fixedly connected to the top of the surface of the operating box 12.

[0036] The control component 4 includes a fixed housing 41. An air pump 42 is fixedly connected to one side of the inner wall of the fixed housing 41, and an internal slider 46 is slidably connected to the other side of the inner wall of the fixed housing 41. A rotor motor 43 is fixedly connected to the bottom end of the air pump 42. A telescopic hollow tube 44 is fixedly connected to the top of the inner cavity of the fixed housing 41. A grooved clip 45 is fixedly connected to the top end of the telescopic hollow tube 44. Adapter guide plates 47 are fixedly connected to both the upper and lower ends of the internal slider 46.

[0037] One end of the adapter guide plate 47 near the built-in slider 46 is slidably connected to the inner cavity of the fixed shell 41. A limiting spring 48 is fixedly connected to the middle of the inner cavity of the built-in slider 46. The end of the limiting spring 48 away from the built-in slider 46 is fixedly connected to the inner cavity of the fixed shell 41. One end of the fixed shell 41 is fixedly connected to one side of the surface of the support platform 1.

[0038] The composite connecting plate 5 includes a hollow connecting plate 51. A perforated insert plate 52 is fixedly connected to the top of the hollow connecting plate 51. Both sides of the inner wall of the hollow connecting plate 51 are slidably connected to a sealing partition 6 via guide strips. A clamping block 61 is slidably connected to the middle of the inner cavity of the sealing partition 6 near the insertion shaft 38. A tension strip 53 is fixedly connected to the inner cavity of the clamping block 61 near the insertion shaft 38. A tension gauge 63 is fixedly connected to the inner cavity of the sealing partition 6 away from the insertion shaft 38 via a tension rod 62. A through groove 54 is opened on the inner cavity of the hollow connecting plate 51 near the insertion shaft 38.

[0039] The surface of the tension strip 53 is slidably connected to the inner wall of the hollow connecting plate 51. The end of the tension strip 53 away from the sealing partition 6 is fixedly connected to the inner cavity of the hollow connecting plate 51 through the through groove 54. There are four composite connecting plates 5.

[0040] The control unit 4 pressurizes the interior of the fixed housing 41 through the air pump 42 inside the fixed housing 41, thereby elongating the telescopic hollow tube 44. The compression tube 33 is stretched through the groove clamp 45. Similarly, when the air pump 42 evacuates the fixed housing 41, the telescopic hollow tube 44 shortens due to the pressure, pulling the groove clamp 45 downward. When the air pump 42 pressurizes, it also pushes the built-in slider 46 towards the side closer to the support platform 1, thereby pushing the transition guide plates 47 on both sides. At this time, the upper transition guide plate 47 is inserted into the interior of the adsorption plate 11, and the lower transition guide plate 47 contacts the conductive rod 15, thereby guiding the static electricity inside the adsorption plate 11 to the outside.

[0041] During the rotation of the hollow connecting plate 51, the sealing partition 6, pulled by the tension bar 53, will slide towards one side of the perforated insert plate 52 under the action of centrifugal force, thereby opening the passage inside the hollow connecting plate 51. The ink enters the interior of the hollow connecting plate 51 through the through groove 54, and then enters the inner cavity of the printing roller 31 under the guidance of the perforated insert plate 52 by centrifugal force. When the printing roller 31 stops rotating, the tension bar 53 separates the ink in the inner cavity of the printing roller 31 from the ink on the inner wall by tension.

[0042] During the process of the sealing baffle 6 sliding due to centrifugal force, the tension bar 53 will exert a tension on the clamping block 61. At this time, the clamping block 61 and the sealing baffle 6 will be slightly displaced, which will cause the tension rod 62 to pull the tension gauge 63, thereby determining the magnitude of the centrifugal force actually received by the sealing baffle 6.

[0043] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. An ink transfer system for a rotary printing press printing unit, comprising a support platform (1), wherein an adsorption plate (11) is fixedly connected to the axis at the top of the surface of the support platform (1), a rotating box (12) is fixedly connected to both sides of the top of the support platform (1), a drying plate (13) is fixedly connected to the top of the inner wall of the rotating box (12), a transport rotating rod (14) is rotatably connected to the middle of the inner cavity of the rotating box (12), and conductive rods (15) are fixedly connected to both sides of the lower surface of the support platform (1), characterized in that: Includes a printing component (3), both ends of which are provided with control components (4), and a cleaning component (2) is provided on the side of the printing component (3) away from the support table (1); The printing component (3) has a printing roller (31), both ends of which are rotatably connected to an adapter turntable (36). An insert shaft (38) is rotatably connected to the axis of the inner wall of the adapter turntable (36). A composite connecting plate (5) is uniformly arranged in the middle of the surface of the insert shaft (38). Both ends of the insert shaft (38) are fixedly connected to a control motor (35). A compression tube (33) is fixedly connected to the end of the control motor (35) away from the printing roller (31). A side branch tube (34) is uniformly arranged in the inner cavity of the adapter turntable (36). A transfer tube (39) is fixedly connected to the bottom end of the compression tube (33). An infusion tube (32) is fixedly connected to the middle of the bottom of the inner cavity of the transfer tube (39). The surface of the adapter tube (39) is fixedly connected to the middle of the inner cavity of the support platform (1), the bottom end of the infusion tube (32) extends to the outside of the support platform (1), and the inner cavity of the adapter tube (39) is filled with dye. The printing roller (31) has a liquid storage tank (310) in its inner cavity. The inner cavity of the printing roller (31) is fixedly connected to a thin tube (37) through the liquid storage tank (310). The end of the composite connecting plate (5) away from the plug-in shaft (38) extends into the interior of the liquid storage tank (310). The composite connecting plate (5) includes a hollow connecting plate (51). A perforated insert plate (52) is fixedly connected to the top of the hollow connecting plate (51). Both sides of the inner wall of the hollow connecting plate (51) are slidably connected to a sealing partition plate (6) via guide strips. A clamping block (61) is slidably connected to the middle of the inner cavity of the sealing partition plate (6) near the insertion shaft (38). A tension strip (53) is fixedly connected to the inner cavity of the clamping block (61) near the insertion shaft (38). A tension gauge (63) is fixedly connected to the inner cavity of the sealing partition plate (6) away from the insertion shaft (38) via a tension rod (62). A through groove (54) is opened on the inner cavity of the hollow connecting plate (51) near the insertion shaft (38). The surface of the tension strip (53) is slidably connected to the inner wall of the hollow connecting plate (51). The end of the tension strip (53) away from the sealing partition (6) is fixedly connected to the inner cavity of the hollow connecting plate (51) through the through groove (54). The number of composite connecting plates (5) is four. When not printing, the printing roller is lifted a short distance by the control components on both sides. At this time, the compression tube is stretched, and due to pressure, ink is drawn from the bottom through the infusion tube via the transfer tube. When the printing roller is in operation, the control components adjust the distance between the roller and the suction plate to ensure full contact between the roller and the upper surface of the paper. Meanwhile, the folded compression tube delivers internal ink to the printing roller through the side branch tube. The control motor directly controls the rotation of the insertion shaft, which is controlled by four composite connecting plates on the outer surface. The outer surface of the printing roller rotates; after the ink enters the printing roller, it enters the inner cavity of the printing roller through the composite connecting plate, and then permeates the outermost layer of the printing roller through the thin tube, enabling the printing roller to have the printing function. The adapter disk always remains in a relatively stationary state. Therefore, as the printing roller rotates, the composite connecting plate will continuously sweep across the surface of the adapter disk. Each time the side of the composite connecting plate passes through the opening of the adapter disk, the side branch pipe will exert an impact on the ink in the inner cavity of the printing roller through the opening of the adapter disk, thereby causing the ink in the inner cavity of the printing roller to vibrate. The printing roller adopts a layered structure design. After ensuring that the printing roller can carry out printing work through the ink added to the inner cavity, the adapter turntable can rotate relative to the printing roller, thereby continuously agitating the ink and stirring it through the composite connecting plate. This makes it less likely for the ink on the outer surface of the printing roller to have color difference problems due to layering.

2. The ink transfer system of a rotary printing press printing unit according to claim 1, characterized in that: The cleaning component (2) includes an arched plate (21), a thrust gauge (22) is fixedly connected to the middle of the inner wall of the arched plate (21), an arc-shaped concave plate (23) is fixedly connected to the bottom end of the thrust gauge (22), fine brushes are evenly arranged in the inner cavity of the arc-shaped concave plate (23), and buffer spring belts (24) are fixedly connected to both sides of the surface of the arc-shaped concave plate (23).

3. The ink transfer system of a rotary printing press printing unit according to claim 2, characterized in that: The end of the buffer spring band (24) away from the arc-shaped concave plate (23) is fixedly connected to the inner wall of the arch plate (21). The inner wall of the arc-shaped concave plate (23) is slidably connected to the surface of the printing roller (31) through a fine brush. Both ends of the arch plate (21) are fixedly connected to the top of the surface of the operating box (12).

4. The ink transfer system of a rotary printing press printing unit according to claim 1, characterized in that: The control component (4) includes a fixed shell (41), an air pump (42) is fixedly connected to one side of the inner wall of the fixed shell (41), and an internal slider (46) is slidably connected to the other side of the inner wall of the fixed shell (41). A rotor motor (43) is fixedly connected to the bottom end of the air pump (42), a telescopic hollow tube (44) is fixedly connected to the top of the inner cavity of the fixed shell (41), a grooved clip (45) is fixedly connected to the top end of the telescopic hollow tube (44), and a transition guide plate (47) is fixedly connected to both the upper and lower ends of the internal slider (46). The control unit pressurizes the interior of the fixed housing using an air pump within the housing cavity, causing the telescopic hollow tube to extend. This extends the compression tube via a grooved clamp. Similarly, when the air pump evacuates the fixed housing, the telescopic hollow tube shortens due to pressure, pulling the grooved clamp downwards. The pressurization of the air pump also pushes the built-in slider towards the support platform, thereby pushing the transition guide plates on both sides. At this point, the upper transition guide plate inserts into the adsorption plate, while the lower transition guide plate contacts the conductive rod, thus guiding the static electricity inside the adsorption plate to the outside.

5. The ink transfer system of a rotary printing press printing unit according to claim 4, characterized in that: The end of the adapter guide plate (47) near the built-in slider (46) is slidably connected to the inner cavity of the fixed shell (41). A limiting spring (48) is fixedly connected to the middle of the inner cavity of the built-in slider (46). The end of the limiting spring (48) away from the built-in slider (46) is fixedly connected to the inner cavity of the fixed shell (41). One end of the fixed shell (41) is fixedly connected to one side of the surface of the support platform (1).

Citation Information

Patent Citations

  • Screen printing machine with air drying function

    CN113386453A

  • Gravure offset printing device

    CN114619754A