Water-ink balance control method and device for printing machine

Abstract

The invention discloses a water-ink balance control method and device for a printing machine, and relates to the technical field of printing machines. The device comprises driving boxes, the sides, away from each other, of two side plates are fixedly connected with the driving boxes, a blanket cylinder is fixedly connected with the output ends of the driving boxes, a printing plate is fixedly connected with the output ends of the driving boxes, and a fountain solution assembly is arranged on the lateral upper portion of the printing plate and fixedly connected with the output ends of the driving boxes. The printing ink assembly is arranged on the side, away from the fountain solution assembly, of the printing plate, the printing ink assembly is arranged above the side of the printing plate, the printing ink assembly is fixedly connected with the output end of the driving box, the visual assembly is fixedly connected to the top of the support, the visual assembly is arranged on the side, away from the fountain solution assembly, of the printing ink assembly, and the visual assembly collects images and texts on paper. And comparing with pre-stored data, adjusting the fountain solution supply quantity and the ink supply quantity of the fountain solution assembly and the ink assembly, controlling the water-ink balance, and adjusting the image-text printing condition.

Description

Technical Field

[0001] The present invention relates to the technical field of printing presses, and specifically relates to a method and device for controlling the ink-water balance of a printing press. Background Art

[0002] A printing press is a device used for batch printing of text and images. It can be divided into relief printing presses, intaglio printing presses, lithographic printing presses, and screen printing presses according to the type of printing plate. The core is to transfer ink onto the printing substrate through pressure. Modern printing presses integrate machinery, electronics, and optics. The paper feeding system feeds the paper accurately, the printing unit completes the transfer of text and images, the ink-water system controls the balance, and the paper receiving system processes the drying and stacking of printed products. It is widely used in fields such as books, packaging, and advertising. Its technological development has progressed from manual to fully automatic, with continuous improvement in speed and accuracy, promoting the progress of information dissemination and the printing industry;

[0003] Ink-water balance control is a key technology in the printing process to ensure a reasonable match between the amount of ink and dampening solution on the printing plate. The core is to make the image area inked, the non-image area wetted, and the two do not interfere with each other. During printing, the printing plate needs dampening solution to form a water film to prevent ink from spreading, and at the same time, ink needs to adhere and transfer in the image area. The dynamic balance of the two directly affects the printing quality. Excessive dampening solution will cause ink emulsification and slow drying of printed products, while too little will easily cause dirty plates; factors such as ink properties, printing speed, paper properties, environmental temperature and humidity, and the distribution of text and images on the plate surface will all affect the ink-water balance. It is necessary to adjust the ink supply amount, dampening solution supply amount, and related parameters to maintain the balance in order to achieve a printing effect with clear dots, uniform ink color, no dirty plates, and no smeared plates. It is an important link in offset printing and other lithographic printing to ensure the quality of printed products. Therefore, we have proposed a method and device for controlling the ink-water balance of a printing press. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a method and device for controlling the ink-water balance of a printing press, including:

[0005] Supports, there are two supports, and side plates are fixedly connected to the tops of both supports;

[0006] An ink-water balance mechanism, the ink-water balance mechanism is fixedly connected to one side of the two side plates away from each other;

[0007] Among them, the ink-water balance mechanism includes:

[0008] Drive boxes, drive boxes are fixedly connected to one side of the two side plates away from each other;

[0009] A blanket cylinder, both ends of the blanket cylinder penetrate through the two side plates respectively and are fixedly connected to the output ends of the two drive boxes respectively, for transferring ink to the printing substrate, and below the blanket cylinder is the paper feeding system of the printing press, which has an impression cylinder for applying pressure to the bottom of the printing substrate;

[0010] A printing plate, both ends of the printing plate penetrate through two side plates respectively and are fixedly connected to the output ends of two driving boxes respectively, for transferring ink to a blanket cylinder;

[0011] A dampening solution assembly, the dampening solution assembly is arranged at the interval between the two side plates, and the dampening solution assembly is arranged above the side of the printing plate. The dampening solution assembly penetrates through the two side plates and is fixedly connected to the output ends of the two driving boxes respectively, for transporting the dampening solution to the printing plate;

[0012] An ink assembly, the ink assembly is arranged on the side of the printing plate away from the dampening solution assembly, and the ink assembly is arranged above the side of the printing plate. The ink assembly penetrates through the two side plates and is fixedly connected to the output ends of the two driving boxes respectively, for transporting ink to the printing plate;

[0013] A vision assembly, the vision assembly is fixedly connected to the top of the bracket, and the vision assembly is arranged on the side of the ink assembly away from the dampening solution assembly;

[0014] Start the printing press. The paper feeding system of the printing press drives the paper to be transported. The dampening solution assembly first transports the dampening solution to the printing plate. The non-graphic area of the printing plate adsorbs the dampening solution. The ink assembly transports the ink to the printing plate. The graphic area of the printing plate adsorbs the ink. Oil and water repel each other. Finally, clear graphics are produced on the printing plate. Finally, the ink graphics are transferred to the blanket cylinder. Driven by the paper feeding system, the paper reaches below the blanket cylinder. The impression cylinder applies pressure to the bottom of the paper, and the paper applies pressure to the blanket cylinder. Finally, the ink on the blanket cylinder is transferred to the paper to complete the printing operation. Subsequently, the paper passes directly below the blanket cylinder and then through the vision assembly. The vision assembly can collect the graphics on the paper. By comparing with the pre-stored data, the supply amounts of the dampening solution and the ink of the dampening solution assembly and the ink assembly are adjusted to control the water-ink balance and adjust the printing condition of the graphics.

[0015] Furthermore, chutes are provided on the surfaces of both of the two side plates. There are two chutes, and the inner sides of the two chutes are both slidably connected with dovetail blocks. The inner sides of the two dovetail blocks are respectively fixedly connected to the surfaces of the printing plate and the blanket cylinder. The printing plate is driven to move up and down. The printing plate drives the dovetail blocks to slide in the chutes, driving the blanket cylinder to move up and down with the printing plate, so as to adjust the gap between the printing plate and the dampening solution assembly and the ink assembly proportionally, adjust the supply amounts of the dampening solution and the ink proportionally, and achieve printing with different ink depths. The dovetail blocks slide in a limited manner inside the chutes, which can limit the printing plate and the blanket cylinder, avoid shaking during adjustment, avoid the position of the ink transferred from the printing plate to the blanket cylinder from shifting, and avoid the printing position of the substrate from shifting.

[0016] Further, the dampening solution assembly includes mounting plates. There are two mounting plates, and the surface of the mounting plates is fixedly connected to the surface of the bracket. The inner side of the mounting plate is rotatably connected to a dampening roller. Both ends of the dampening roller penetrate through the side plate and are fixedly connected to the output end of the drive box. A metering roller is in pressing contact with the lower side of the dampening roller. Both ends of the metering roller penetrate through the side plate and are fixedly connected to the output end of the drive box, and the surface of the metering roller is rotatably connected to the inner side of the mounting plate. A fountain roller is slidably connected directly below the metering roller. Both ends of the fountain roller penetrate through the side plate and are fixedly connected to the output end of the drive box, and there is a gap between the surface of the fountain roller and the inner side of the mounting plate. A damping roller is slidably connected to the lower side of the fountain roller, and the damping roller is arranged above the side of the printing plate. Both ends of the damping roller penetrate through the side plate and are fixedly connected to the output end of the drive box, and the inner side of the damping roller is rotatably connected. An adjusting assembly is arranged directly above the damping roller, and the adjusting assembly is fixedly connected to the side of the mounting plate away from the bracket. The drive box drives the dampening roller, metering roller, fountain roller, and damping roller to rotate. The water fountain is arranged directly above the dampening roller. The dampening solution flows out from the water fountain. The dampening solution contacts the dampening roller and, as the roller rotates, is sequentially transmitted to the metering roller, fountain roller, damping roller, and finally to the surface of the printing plate. The fountain roller axially reciprocates while rotating, evenly applying the dampening solution transmitted by the metering roller on the surface of the fountain roller, avoiding local over-thickness or under-thickness, and enabling the fountain roller to evenly apply the dampening solution on the surface of the damping roller.

[0017] Further, the adjusting assembly includes an adjusting roller. The adjusting roller is arranged obliquely above the damping roller and on the side of the damping roller away from the fountain roller. Both ends of the adjusting roller penetrate through the side plate and are fixedly connected to the output end of the drive box, and the surface of the adjusting roller is slidably connected to the inner side of the side plate. A limiting frame is slidably connected to the surface of the adjusting roller. The limiting frame is arranged inside both of the mounting plates, and the outer side of the limiting frame is fixedly connected to the inner side of the mounting plate. The adjusting roller slides inside the limiting frame, thereby adjusting the distance from the damping roller, and further controlling the thickness of the dampening solution on the surface of the damping roller to achieve the adjustment of the supply amount of the dampening solution.

[0018] Further, fixed sleeve plates are fixedly connected to the sides of the two mounting plates away from each other. The inner side of the fixed sleeve plate is rotatably connected to the surface of the damping roller. A telescopic rod is fixedly connected to the outer side of the damping roller. One end of the telescopic rod away from the fixed sleeve plate is fixedly connected to a movable sleeve plate, and the movable sleeve plate is fixedly connected to the output end of the telescopic rod. The inner side of the movable sleeve plate is rotatably connected to the surface of the adjusting roller. When the telescopic rod is started, the output end of the telescopic rod drives the movable sleeve plate to move, driving the adjusting roller to move, and finally realizing the adjustment of the distance between the adjusting roller and the damping roller.

[0019] Furthermore, a liquid storage bin is arranged directly above the adjusting roller. The surface of the liquid storage bin is fixedly connected to the surface of the mounting plate. A permeation tube is fixedly connected to one side of the liquid storage bin close to the adjusting roller. The permeation tube is made of sponge material. A pipeline is connected to the side of the liquid storage bin far from the adjusting roller to generate suction on the side of the liquid storage bin far from the adjusting roller. The dampening solution penetrates into the permeation tube under the action of the suction, continuously absorbs the permeating liquid on the surface of the adjusting roller, and is finally stored inside the liquid storage bin, reducing the supply amount of the dampening solution. When the supply amount of the dampening solution needs to be increased, the suction on the side of the liquid storage bin far from the adjusting roller is cancelled. The dampening solution inside the liquid storage bin wets the permeation tube under the action of gravity, and finally replenishes the dampening solution on the surface of the adjusting roller. The finally replenished dampening solution is transferred to the surface of the dampening roller to achieve an increase in the supply amount of the dampening solution.

[0020] Furthermore, an inner tube is fixedly connected to the inner side surface of the permeation tube. The inner tube is made of a hard material. One end of the inner tube far from the liquid storage bin is provided with holes, and the holes are evenly distributed on the surface of the inner tube. The hard inner tube can support the permeation tube to prevent the sponge-made permeation tube from deforming. When the dampening solution penetrates into the permeation tube under the action of the suction, the dampening solution enters the inner tube through the holes and finally enters the inside of the liquid storage bin. When increasing the supply amount of the dampening solution, the dampening solution enters the inner tube from the liquid storage bin and then wets the permeation tube through the holes.

[0021] Furthermore, the ink assembly includes an ink fountain roller. The ink fountain roller is arranged above the side of the printing plate, and the ink fountain roller is arranged on the side of the printing plate far from the dampening roller. Both ends of the ink fountain roller penetrate through two side plates respectively and are fixedly connected to the output end of the driving box. The inner side surface of the side plate is rotationally connected to the surface of the ink fountain roller. A knife rest is sleeved outside the ink fountain roller, and the inner side surface of the knife rest is rotationally connected to the surface of the ink fountain roller. The surface of the knife rest is fixedly connected to one side of the two side plates close to each other. One side of the knife rest far from the ink fountain roller is rotationally connected to an ink fountain blade through an electric rotating rod. The ink fountain blade is bent, and a sponge strip is fixedly connected to the inner side surface of the bent concave part of the ink fountain blade. The length of the sponge strip is slightly shorter than that of the ink fountain blade. Part of the ink fountain roller is located inside the ink fountain and is in direct contact with the ink. Driven by the driving box, the ink fountain roller rotates to transfer the ink to the printing plate. The graphic area of the printing plate adsorbs the ink. Since oil and water repel each other, clear graphics are finally produced on the printing plate. The electric rotating rod drives the ink fountain blade to rotate to adjust the distance between the ink fountain blade and the ink fountain roller, so as to adjust the thickness of the ink on the surface of the ink fountain roller, thereby adjusting the supply amount of the ink. The setting of the sponge strip can adsorb the scraped ink to avoid waste caused by ink dripping. Moreover, the length of the sponge strip is slightly shorter than that of the ink fountain blade to prevent the ink accumulated on the sponge strip from flowing out of the ink fountain scraper, further avoiding waste caused by ink dripping.

[0022] Further, the vision component includes a grooved plate, which is fixedly connected to the surface of the bracket. At the top of the inner side of the grooved plate, there is a main CCD camera, the outer side of which is fixedly connected to the inner side of the grooved plate. On both sides of the main CCD camera, there are auxiliary CCD cameras, and the surfaces of the auxiliary CCD cameras are fixedly connected to the inner side of the grooved plate. The main CCD camera collects the graphic patterns on the surface of the printing substrate, and the auxiliary CCD cameras collect information such as the graphic thickness of the printing substrate from the printing substrate, so as to collect the graphic data of the printing substrate in all directions.

[0023] A method for controlling the ink-water balance of a printing press includes the following steps:

[0024] Step 1: Paper feeding. Start the printing press. The paper feeding system of the printing press drives the paper to be transmitted. When the paper reaches below the blanket cylinder, the impression cylinder applies pressure to the bottom of the paper, and the paper applies pressure to the blanket cylinder.

[0025] Step 2: Fountain solution feeding. The drive box drives the fountain roller, metering roller, dampening train roller, and damping roller to rotate. The fountain is set directly above the fountain roller. The fountain solution flows out, contacts the fountain roller, and as the roller rotates, it is sequentially transmitted to the metering roller, dampening train roller, and damping roller, and finally transmitted to the surface of the printing plate. While rotating, the dampening train roller moves axially to evenly apply the fountain solution transmitted by the metering roller on its surface.

[0026] Step 3: Ink feeding. Part of the ink fountain roller is located inside the ink fountain and directly contacts the ink. Driven by the drive box, the ink fountain roller rotates to transmit the ink to the printing plate. The graphic area of the printing plate adsorbs the ink. Since oil and water repel each other, clear graphics are finally produced on the printing plate.

[0027] Step 4: Vision acquisition. The paper passes directly below the blanket cylinder and then through the vision component. The main CCD camera collects the graphic patterns on the surface of the printing substrate, and the auxiliary CCD cameras collect information such as the graphic thickness of the printing substrate from the printing substrate.

[0028] Step 5: Proportional adjustment. Drive the printing plate to move up and down. The printing plate drives the dovetail block to slide in the chute, and drives the blanket cylinder to move up and down together with the printing plate, so as to proportionally adjust the gap between the printing plate and the fountain solution component and the ink component, and proportionally adjust the supply amounts of the fountain solution and the ink.

[0029] Step 6: Balance control. Start the telescopic rod. The output end of the telescopic rod drives the movable platen to move, driving the regulating roller to move, and finally realizing the adjustment of the distance between the regulating roller and the damping roller, thereby controlling the thickness of the fountain solution on the surface of the damping roller and realizing the adjustment of the supply amount of the fountain solution. The electric rotating rod drives the ink fountain blade to rotate, adjusts the distance between the ink fountain blade and the ink fountain roller, and achieves the purpose of adjusting the thickness of the ink on the surface of the ink fountain roller, so as to adjust the supply amount of the ink.

[0030] Advantages of the present invention:

[0031] 1. By setting up an ink-water balance mechanism in the present invention, the printing plate is driven to lift. The printing plate drives the dovetail block to slide in the chute, and drives the blanket cylinder to lift together with the printing plate, so as to adjust the gap between the printing plate and the dampening solution component and the ink component proportionally, adjust the supply amounts of the dampening solution and the ink proportionally, and achieve printing with different ink depths. The dovetail block slides in a limited way inside the chute, which can limit the printing plate and the blanket cylinder, avoid shaking during adjustment, avoid the offset of the position where the ink is transferred from the printing plate to the blanket cylinder, and avoid the offset of the printing position of the printed material.

[0032] 2. By setting up a dampening solution component in the present invention, the fountain roller axially reciprocates while rotating, and evenly applies the dampening solution transmitted by the metering roller on the surface of the fountain roller, avoiding local over-thickness or over-thinness. The fountain roller evenly applies the dampening solution on the surface of the water fountain roller. The adjusting roller slides inside the limit frame, so as to adjust the distance from the water fountain roller, and further control the thickness of the dampening solution on the surface of the water fountain roller, realizing the adjustment of the supply amount of the dampening solution.

[0033] 3. By setting up a permeation tube in the present invention, the dampening solution penetrates into the permeation tube under the action of suction, continuously absorbs the permeating liquid on the surface of the adjusting roller, and finally stores it inside the liquid storage bin, reducing the supply amount of the dampening solution. When the supply amount of the dampening solution needs to be increased, cancel the suction on the side of the liquid storage bin away from the adjusting roller. The dampening solution inside the liquid storage bin wets the permeation tube under the action of gravity, and finally replenishes the dampening solution on the surface of the adjusting roller. The finally replenished dampening solution is transferred to the surface of the water fountain roller, realizing the increase of the supply amount of the dampening solution. The inner tube made of hard material can support the permeation tube and avoid the deformation of the permeation tube made of sponge material.

[0034] 4. By setting up an ink component in the present invention, the electric rotating rod drives the ink fountain blade to rotate, adjusts the distance between the ink fountain blade and the ink fountain roller, and achieves the purpose of adjusting the ink thickness on the surface of the ink fountain roller, so as to adjust the supply amount of the ink. The setting of the sponge strip can adsorb the scraped ink, avoid the waste caused by ink dripping, and the length of the sponge strip is slightly shorter than that of the ink fountain blade, avoiding the ink accumulated on the sponge strip from flowing out of the ink fountain doctor blade, and further avoiding the waste caused by ink dripping.

[0035] 5. By setting up a vision component in the present invention, the main CCD camera collects the graphic pattern on the surface of the printed material, and the auxiliary CCD camera collects from the printed material, collects information such as the graphic thickness of the printed material, can collect the graphic data of the printed material in all directions, and adjusts the supply amounts of the dampening solution and the ink of the dampening solution component and the ink component by comparing with the pre-stored data, controls the ink-water balance, and adjusts the printing condition of the graphic. Description of the Drawings

[0036] Figure 1 This is the flowchart of the ink - water balance control method for the printing press of the present invention;

[0037] Figure 2 This is the structural schematic diagram of the ink - water balance control device for the printing press of the present invention;

[0038] Figure 3 This is the schematic diagram of another perspective of the ink - water balance control device for the printing press of the present invention;

[0039] Figure 4 This is the structural schematic diagram of the ink - water balance mechanism of the present invention;

[0040] Figure 5 This is the structural schematic diagram of the dampening solution assembly of the present invention;

[0041] Figure 6 This is the structural schematic diagram of the adjusting assembly of the present invention;

[0042] Figure 7 This is the cross - sectional structural schematic diagram of the permeation tube of the present invention;

[0043] Figure 8 This is the structural schematic diagram of the ink assembly of the present invention;

[0044] Figure 9 This is the structural schematic diagram of the ink fountain blade of the present invention;

[0045] Figure 10 This is the structural schematic diagram of the vision assembly of the present invention.

[0046] In the figure: 1. Support; 2. Side plate; 3. Ink - water balance mechanism; 31. Driving box; 32. Blanket cylinder; 33. Printing plate; 34. Slide groove; 35. Dovetail block; 36. Dampening solution assembly; 361. Mounting plate; 362. Water fountain roller; 363. Metering roller; 364. Dampening solution roller train; 365. Dampening roller; 366. Adjusting assembly; 3661. Adjusting roller; 3662. Limit frame; 3663. Fixed sleeve plate; 3664. Movable sleeve plate; 3665. Telescopic rod; 3666. Liquid storage bin; 3667. Permeation tube; 3668. Inner tube; 3669. Hole body; 37. Ink assembly; 371. Ink fountain roller; 372. Tool rest; 373. Ink fountain blade; 374. Sponge strip; 38. Vision assembly; 381. Grooved plate; 382. Main CCD camera; 383. Sub - CCD camera. Detailed implementation manners

[0047] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations will be obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0048] Example 1. Please refer to Figures 1 - 7 , the present invention is a method and device for controlling the water-ink balance of a printing press, including:

[0049] Brackets 1. There are two brackets 1, and side plates 2 are fixedly connected to the tops of both brackets 1;

[0050] The water-ink balance mechanism 3 is fixedly connected to the sides of the two side plates 2 away from each other;

[0051] Among them, the water-ink balance mechanism 3 includes:

[0052] Drive boxes 31 are fixedly connected to the sides of the two side plates 2 away from each other;

[0053] An impression cylinder 32. The two ends of the impression cylinder 32 respectively penetrate through the two side plates 2 and are fixedly connected to the output ends of the two drive boxes 31, respectively, for transferring ink to the printing substrate. And below the impression cylinder 32 is the paper feeding system of the printing press, which has an impression cylinder that applies pressure to the bottom of the printing substrate;

[0054] A printing plate 33. The two ends of the printing plate 33 respectively penetrate through the two side plates 2 and are fixedly connected to the output ends of the two drive boxes 31, respectively, for transferring ink to the impression cylinder 32;

[0055] A dampening solution assembly 36 is arranged at the interval between the two side plates 2, and the dampening solution assembly 36 is arranged above the side of the printing plate 33. The dampening solution assembly 36 penetrates through the two side plates 2 and is fixedly connected to the output ends of the two drive boxes 31, respectively, for transmitting dampening solution to the printing plate 33;

[0056] An ink assembly 37 is arranged on the side of the printing plate 33 away from the dampening solution assembly 36, and the ink assembly 37 is arranged above the side of the printing plate 33. The ink assembly 37 penetrates through the two side plates 2 and is fixedly connected to the output ends of the two drive boxes 31, respectively, for transmitting ink to the printing plate 33;

[0057] A vision component 38 is fixedly connected to the top of the bracket 1, and the vision component 38 is arranged on the side of the ink assembly 37 away from the dampening solution assembly 36;

[0058] Start the printing press. The paper feeding system of the printing press drives the paper to be transmitted. The dampening solution component 36 first transmits the dampening solution to the printing plate 33. The non-graphic area of the printing plate 33 adsorbs the dampening solution. The ink component 37 transmits the ink to the printing plate 33. The graphic area of the printing plate 33 adsorbs the ink. Since oil and water repel each other, clear graphics are finally produced on the printing plate 33. Finally, the ink graphics are transferred to the blanket cylinder 32. Driven by the paper feeding system, the paper reaches below the blanket cylinder 32. The impression cylinder applies pressure to the bottom of the paper, and the paper applies pressure to the blanket cylinder 32. Finally, the ink on the blanket cylinder 32 is transferred to the paper to complete the printing operation. Subsequently, the paper passes directly below the blanket cylinder 32 and then through the vision component 38. The vision component 38 can collect the graphics on the paper. By comparing with the pre-stored data, the supply amounts of the dampening solution and the ink of the dampening solution component 36 and the ink component 37 are adjusted to control the water-ink balance and adjust the printing condition of the graphics.

[0059] Chutes 34 are provided on the surfaces of both side plates 2. There are two chutes 34, and the inner sides of the two chutes 34 are both slidably connected with dovetail blocks 35. The inner sides of the two dovetail blocks 35 are respectively fixedly connected to the surfaces of the printing plate 33 and the blanket cylinder 32. When driving the printing plate 33 to move up and down, the printing plate 33 drives the dovetail blocks 35 to slide in the chutes 34, and drives the blanket cylinder 32 to move up and down together with the printing plate 33, so as to proportionally adjust the gaps between the printing plate 33 and the dampening solution component 36 and the ink component 37, proportionally adjust the supply amounts of the dampening solution and the ink, and achieve printing with different ink depths. The dovetail blocks 35 are limited to slide inside the chutes 34, which can limit the printing plate 33 and the blanket cylinder 32, avoid shaking during adjustment, avoid the offset of the position where the ink is transferred from the printing plate 33 to the blanket cylinder 32, and avoid the offset of the printing position of the substrate.

[0060] The dampening solution assembly 36 includes mounting plates 361. There are two mounting plates 361, and the surface of the mounting plate 361 is fixedly connected to the surface of the bracket 1. The inner side of the mounting plate 361 is rotatably connected to a dampening roller 362. Both ends of the dampening roller 362 penetrate through the side plate 2 and are fixedly connected to the output end of the drive box 31. A metering roller 363 is in pressing contact with the lower side of the dampening roller 362. Both ends of the metering roller 363 penetrate through the side plate 2 and are fixedly connected to the output end of the drive box 31, and the surface of the metering roller 363 is rotatably connected to the inner side of the mounting plate 361. A water distributing roller 364 is slidably connected directly below the metering roller 363. Both ends of the water distributing roller 364 penetrate through the side plate 2 and are fixedly connected to the output end of the drive box 31, and there is a gap between the surface of the water distributing roller 364 and the inner side of the mounting plate 361. A damping roller 365 is slidably connected to the lower side of the water distributing roller 364, and the damping roller 365 is arranged above the side of the printing plate 33. Both ends of the damping roller 365 penetrate through the side plate 2 and are fixedly connected to the output end of the drive box 31, and the inner side of the damping roller 365 is rotatably connected. An adjusting assembly 366 is arranged directly above the damping roller 365, and the adjusting assembly 366 is fixedly connected to the side of the mounting plate 361 away from the bracket 1. The drive box 31 drives the dampening roller 362, the metering roller 363, the water distributing roller 364, and the damping roller 365 to rotate. A water bucket is arranged directly above the dampening roller 362. The dampening solution flows out of the water bucket. The dampening solution contacts the dampening roller 362 and, as the roller rotates, is sequentially transferred to the metering roller 363, the water distributing roller 364, the damping roller 365, and finally transferred to the surface of the printing plate 33. While rotating, the water distributing roller 364 performs axial reciprocating movement to evenly apply the dampening solution transferred by the metering roller 363 on the surface of the water distributing roller 364, avoiding local over-thickness or under-thickness, so that the water distributing roller 364 evenly applies the dampening solution on the surface of the damping roller 365.

[0061] The adjusting assembly 366 includes an adjusting roller 3661. The adjusting roller 3661 is arranged obliquely above the damping roller 365 and on the side of the damping roller 365 away from the water distributing roller 364. Both ends of the adjusting roller 3661 penetrate through the side plate 2 and are fixedly connected to the output end of the drive box 31, and the surface of the adjusting roller 3661 is slidably connected to the inner side of the side plate 2. A limiting frame 3662 is slidably connected to the surface of the adjusting roller 3661. The limiting frame 3662 is arranged inside both mounting plates 361, and the outer side of the limiting frame 3662 is fixedly connected to the inner side of the mounting plate 361. The adjusting roller 3661 slides inside the limiting frame 3662 to adjust the distance from the damping roller 365, thereby controlling the thickness of the dampening solution on the surface of the damping roller 365 and realizing the adjustment of the supply amount of the dampening solution.

[0062] On one side of the two mounting plates 361 that are far away from each other, there are fixedly connected fixing sleeve plates 3663. The inner side surface of the fixing sleeve plate 3663 is rotationally connected to the surface of the dampening roller 365. The outer side surface of the dampening roller 365 is fixedly connected with a telescopic rod 3665. One end of the telescopic rod 3665 that is far away from the fixing sleeve plate 3663 is fixedly connected with a moving sleeve plate 3664, and the moving sleeve plate 3664 is fixedly connected with the output end of the telescopic rod 3665. The inner side surface of the moving sleeve plate 3664 is rotationally connected to the surface of the adjusting roller 3661. Start the telescopic rod 3665, and the output end of the telescopic rod 3665 drives the moving sleeve plate 3664 to move, driving the adjusting roller 3661 to move, and finally realizing the adjustment of the distance between the adjusting roller 3661 and the dampening roller 365.

[0063] Above the adjusting roller 3661, there is a liquid storage tank 3666. The surface of the liquid storage tank 3666 is fixedly connected with the surface of the mounting plate 361. One side of the liquid storage tank 3666 close to the adjusting roller 3661 is fixedly connected with a permeation tube 3667, and the permeation tube 3667 is made of sponge material. A pipeline is connected to the side of the liquid storage tank 3666 that is far away from the adjusting roller 3661. A suction force is generated on the side of the liquid storage tank 3666 that is far away from the adjusting roller 3661. The dampening solution penetrates into the permeation tube 3667 under the action of the suction force, continuously absorbing the permeation solution on the surface of the adjusting roller 3661, and finally being stored inside the liquid storage tank 3666, reducing the supply amount of the dampening solution. When the supply amount of the dampening solution needs to be increased, cancel the suction force on the side of the liquid storage tank 3666 that is far away from the adjusting roller 3661. The dampening solution inside the liquid storage tank 3666 wets the permeation tube 3667 under the action of gravity, and finally replenishes the dampening solution on the surface of the adjusting roller 3661. The finally replenished dampening solution is transferred to the surface of the dampening roller 365, realizing the increase of the supply amount of the dampening solution.

[0064] The inner side surface of the permeation tube 3667 is fixedly connected with an inner tube 3668. The inner tube 3668 is made of hard material. One end of the inner tube 3668 that is far away from the liquid storage tank 3666 is provided with holes 3669, and the holes 3669 are evenly distributed on the surface of the inner tube 3668. The hard inner tube 3668 can support the permeation tube 3667 to prevent the sponge-made permeation tube 3667 from deforming. When the dampening solution penetrates into the permeation tube 3667 under the action of the suction force, the dampening solution enters the inner tube 3668 through the holes 3669 and finally enters the inside of the liquid storage tank 3666. When increasing the supply amount of the dampening solution, the dampening solution enters the inner tube 3668 from the liquid storage tank 3666 and then wets the permeation tube 3667 through the holes 3669.

[0065] Example 2, please refer to Figures 1 - 10, the ink component 37 includes an ink fountain roller 371. The ink fountain roller 371 is arranged above the side of the printing plate 33, and the ink fountain roller 371 is arranged on the side of the printing plate 33 away from the dampening roller 365. Both ends of the ink fountain roller 371 penetrate through the two side plates 2 respectively and are fixedly connected to the output end of the driving box 31. The inner side surface of the side plate 2 is rotationally connected to the surface of the ink fountain roller 371. A tool rest 372 is sleeved outside the ink fountain roller 371, and the inner side surface of the tool rest 372 is rotationally connected to the surface of the ink fountain roller 371. The surface of the tool rest 372 is fixedly connected to one side where the two side plates 2 are close to each other. One side of the tool rest 372 away from the ink fountain roller 371 is rotationally connected to an ink fountain blade 373 through an electric rotating rod. The ink fountain blade 373 is bent, and a sponge strip 374 is fixedly connected to the inner side surface of the bent recess of the ink fountain blade 373. The length of the sponge strip 374 is slightly shorter than that of the ink fountain blade 373. Part of the ink fountain roller 371 is located inside the ink fountain and directly contacts the ink. Driven by the driving box 31, the ink fountain roller 371 rotates to transfer the ink to the printing plate 33. The graphic area of the printing plate 33 adsorbs the ink. Since oil and water repel each other, clear graphics are finally produced on the printing plate 33. The electric rotating rod drives the ink fountain blade 373 to rotate to adjust the distance between the ink fountain blade 373 and the ink fountain roller 371, so as to achieve the purpose of adjusting the ink thickness on the surface of the ink fountain roller 371, thereby adjusting the ink supply amount. The setting of the sponge strip 374 can adsorb the scraped ink to avoid waste caused by ink dripping. Moreover, the length of the sponge strip 374 is slightly shorter than that of the ink fountain blade 373 to avoid the ink accumulated on the sponge strip 374 from flowing out of the ink fountain scraper, further avoiding waste caused by ink dripping.

[0066] The vision component 38 includes a groove plate 381. The groove plate 381 is fixedly connected to the surface of the bracket 1. A main CCD camera 382 is arranged at the top of the inner side surface of the groove plate 381. The outer side surface of the main CCD camera 382 is fixedly connected to the inner side surface of the groove plate 381. Secondary CCD cameras 383 are arranged on both sides of the main CCD camera 382, and the surface of the secondary CCD camera 383 is fixedly connected to the inner side surface of the groove plate 381. The main CCD camera 382 collects the graphic patterns on the surface of the printing substrate, and the secondary CCD cameras 383 collect from the printing substrate to collect information such as the graphic thickness of the printing substrate, and can collect the graphic data of the printing substrate in all directions.

[0067] The water and ink balance control method for a printing press includes the following steps:

[0068] Step 1: Paper feeding. Start the printing press. The paper feeding system of the printing press drives the paper to be transmitted. The paper reaches below the blanket cylinder 32, and the impression cylinder applies pressure to the bottom of the paper, and the paper applies pressure to the blanket cylinder 32.

[0069] Step 2: Dampening solution delivery. The drive box 31 drives the dampening roller 362, metering roller 363, ink distribution roller 364, and dampening forme roller 365 to rotate. The dampening fountain is arranged directly above the dampening roller 362. The dampening solution flows out of the dampening fountain, contacts the dampening roller 362, and as the roller rotates, it is sequentially transferred to the metering roller 363, ink distribution roller 364, and dampening forme roller 365, and finally transferred to the surface of the printing plate 33. The ink distribution roller 364 axially reciprocates while rotating, and evenly applies the dampening solution transferred by the metering roller 363 to the surface of the ink distribution roller 364;

[0070] Step 3: Ink delivery. Part of the ink fountain roller 371 is located inside the ink fountain and directly contacts the ink. Driven by the drive box 31, the ink fountain roller 371 rotates and transfers the ink to the printing plate 33. The graphic area of the printing plate 33 adsorbs the ink. Since oil and water repel each other, clear graphics are finally produced on the printing plate 33;

[0071] Step 4: Visual acquisition. The paper passes directly below the blanket cylinder 32 and then through the vision component 38. The main CCD camera 382 acquires the graphic pattern on the surface of the printed material, and the secondary CCD camera 383 acquires from the printed material to acquire information such as the graphic thickness of the printed material;

[0072] Step 5: Proportional adjustment. The printing plate 33 is driven to move up and down. The printing plate 33 drives the dovetail block 35 to slide in the chute 34, and drives the blanket cylinder 32 to move up and down together with the printing plate 33, thereby proportionally adjusting the gap between the printing plate 33 and the dampening solution assembly 36 and the ink assembly 37, and proportionally adjusting the supply amounts of the dampening solution and the ink;

[0073] Step 6: Balance control. The telescopic rod 3665 is started. The output end of the telescopic rod 3665 drives the movable sleeve plate 3664 to move, driving the adjusting roller 3661 to move. Finally, the distance between the adjusting roller 3661 and the dampening forme roller 365 is adjusted, thereby controlling the thickness of the dampening solution on the surface of the dampening forme roller 365 and realizing the adjustment of the supply amount of the dampening solution. The electric rotating rod drives the ink fountain blade 373 to rotate, adjusts the distance between the ink fountain blade 373 and the ink fountain roller 371, and achieves the purpose of adjusting the thickness of the ink on the surface of the ink fountain roller 371, thereby adjusting the supply amount of the ink.

[0074] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specifically stated and limited, are implemented according to the conventional means in the art.

Claims

1. Ink-water balance control device for printing press, characterized in that, Including: Brackets (1), there are two brackets (1), and side plates (2) are fixedly connected to the tops of the two brackets (1); Ink-water balance mechanism (3), the ink-water balance mechanism (3) is fixedly connected to the sides of the two side plates (2) away from each other; Among them, the ink-water balance mechanism (3) includes: Drive boxes (31), drive boxes (31) are fixedly connected to the sides of the two side plates (2) away from each other; Blanket cylinder (32), both ends of the blanket cylinder (32) penetrate through the two side plates (2) respectively and are fixedly connected to the output ends of the two drive boxes (31); Printing plate (33), both ends of the printing plate (33) penetrate through the two side plates (2) respectively and are fixedly connected to the output ends of the two drive boxes (31); Fountain solution assembly (36), the fountain solution assembly (36) is arranged at the interval between the two side plates (2), and the fountain solution assembly (36) is arranged above the side of the printing plate (33), the fountain solution assembly (36) penetrates through the two side plates (2) and is fixedly connected to the output ends of the two drive boxes (31) respectively; Ink assembly (37), the ink assembly (37) is arranged on the side of the printing plate (33) away from the fountain solution assembly (36), and the ink assembly (37) is arranged above the side of the printing plate (33), the ink assembly (37) penetrates through the two side plates (2) and is fixedly connected to the output ends of the two drive boxes (31) respectively; Vision assembly (38), the vision assembly (38) is fixedly connected to the top of the bracket (1), and the vision assembly (38) is arranged on the side of the ink assembly (37) away from the fountain solution assembly (36).

2. The ink-water balance control device for a printing press according to claim 1, wherein: Chutes (34) are formed on the surfaces of the two side plates (2), there are two chutes (34), and dovetail blocks (35) are slidably connected to the inner sides of the two chutes (34), and the inner sides of the two dovetail blocks (35) are fixedly connected to the surfaces of the printing plate (33) and the blanket cylinder (32) respectively.

3. The ink-water balance control device for a printing press according to claim 2, wherein: The dampening solution assembly (36) includes mounting plates (361). There are two mounting plates (361), and the surface of the mounting plate (361) is fixedly connected to the surface of the bracket (1). The inner side of the mounting plate (361) is rotatably connected to a dampening roller (362). Both ends of the dampening roller (362) penetrate through the side plate (2) and are fixedly connected to the output end of the drive box (31). A metering roller (363) is in pressing contact with the lower side of the dampening roller (362). Both ends of the metering roller (363) penetrate through the side plate (2) and are fixedly connected to the output end of the drive box (31), and the surface of the metering roller (363) is rotatably connected to the inner side of the mounting plate (361). A water stringing roller (364) is slidably connected directly below the metering roller (363). Both ends of the water stringing roller (364) penetrate through the side plate (2) and are fixedly connected to the output end of the drive box (31), and there is a gap between the surface of the water stringing roller (364) and the inner side of the mounting plate (361). A damping roller (365) is slidably connected to the lower side of the water stringing roller (364), and the damping roller (365) is arranged above the side of the printing plate (33). Both ends of the damping roller (365) penetrate through the side plate (2) and are fixedly connected to the output end of the drive box (31), and the inner side of the damping roller (365) is rotatably connected. An adjusting assembly (366) is arranged directly above the damping roller (365), and the adjusting assembly (366) is fixedly connected to the side of the mounting plate (361) away from the bracket (1).

4. The ink-water balance control device for a printing press according to claim 3, characterized in that: The adjusting assembly (366) includes an adjusting roller (3661). The adjusting roller (3661) is arranged obliquely above the damping roller (365), and the adjusting roller (3661) is arranged on the side of the damping roller (365) away from the water stringing roller (364). Both ends of the adjusting roller (3661) penetrate through the side plate (2) and are fixedly connected to the output end of the drive box (31), and the surface of the adjusting roller (3661) is slidably connected to the inner side of the side plate (2). A limiting frame (3662) is slidably connected to the surface of the adjusting roller (3661). The limiting frame (3662) is arranged inside both of the mounting plates (361), and the outer side of the limiting frame (3662) is fixedly connected to the inner side of the mounting plate (361).

5. The ink-water balance control device for a printing press according to claim 4, characterized in that: Fixed sleeve plates (3663) are fixedly connected to the sides of the two mounting plates (361) away from each other. The inner side of the fixed sleeve plate (3663) is rotatably connected to the surface of the damping roller (365). An expansion link (3665) is fixedly connected to the outer side of the damping roller (365). One end of the expansion link (3665) away from the fixed sleeve plate (3663) is fixedly connected to a movable sleeve plate (3664), and the movable sleeve plate (3664) is fixedly connected to the output end of the expansion link (3665). The inner side of the movable sleeve plate (3664) is rotatably connected to the surface of the adjusting roller (3661).

6. The ink-water balance control device for a printing press according to claim 5, wherein: Above the adjusting roller (3661), a liquid storage bin (3666) is provided. The surface of the liquid storage bin (3666) is fixedly connected to the surface of the mounting plate (361). On one side of the liquid storage bin (3666) close to the adjusting roller (3661), a permeation tube (3667) is fixedly connected, and the permeation tube (3667) is made of sponge material.

7. The ink-water balance control device of the printing press according to claim 6, wherein: An inner tube (3668) is fixedly connected to the inner side surface of the permeation tube (3667). The inner tube (3668) is made of hard material. One end of the inner tube (3668) far from the liquid storage bin (3666) is provided with holes (3669), and the holes (3669) are evenly distributed on the surface of the inner tube (3668).

8. The printing press ink-water balance control device according to claim 7, characterized in that: The ink component (37) includes an ink fountain roller (371). The ink fountain roller (371) is arranged above the side of the printing plate (33), and the ink fountain roller (371) is arranged on the side of the printing plate (33) far from the dampening roller (365). Both ends of the ink fountain roller (371) respectively penetrate through two side plates (2) and are fixedly connected to the output end of the drive box (31). The inner side surface of the side plate (2) is rotationally connected to the surface of the ink fountain roller (371). A knife rest (372) is sleeved outside the ink fountain roller (371), and the inner side surface of the knife rest (372) is rotationally connected to the surface of the ink fountain roller (371). The surface of the knife rest (372) is fixedly connected to one side of the two side plates (2) close to each other. One side of the knife rest (372) far from the ink fountain roller (371) is rotationally connected to an ink fountain blade (373) through an electric rotating rod. The ink fountain blade (373) is bent, and a sponge strip (374) is fixedly connected to the inner side surface of the bent recess of the ink fountain blade (373). The length of the sponge strip (374) is slightly shorter than that of the ink fountain blade (373).

9. The ink-water balance control device for a printing press according to claim 8, characterized in that: The vision component (38) includes a groove plate (381). The groove plate (381) is fixedly connected to the surface of the bracket (1). At the top of the inner side surface of the groove plate (381), a main CCD camera (382) is arranged. The outer side surface of the main CCD camera (382) is fixedly connected to the inner side surface of the groove plate (381). On both sides of the main CCD camera (382), auxiliary CCD cameras (383) are arranged, and the surface of the auxiliary CCD cameras (383) is fixedly connected to the inner side surface of the groove plate (381).

10. A method for controlling the water-ink balance of a printing press, which uses the printing press water-ink balance control device described in claim 1, characterized in that, It includes the following steps: Step 1: Paper feeding. Start the printing press. The paper feeding system of the printing press drives the paper to be transmitted. The paper reaches below the blanket cylinder (32). The impression cylinder applies pressure to the bottom of the paper, and the paper applies pressure to the blanket cylinder (32). Step 2: Dampening solution delivery. The drive box (31) drives the fountain roller (362), metering roller (363), dampening form roller (364), and water applicator roller (365) to rotate. The fountain is arranged directly above the fountain roller (362). The dampening solution flows out of the fountain, contacts the fountain roller (362), and is sequentially transferred to the metering roller (363), dampening form roller (364), water applicator roller (365) as the roller rotates, and finally transferred to the surface of the printing plate (33). The dampening form roller (364) axially reciprocates while rotating, evenly applying the dampening solution transferred by the metering roller (363) on the surface of the dampening form roller (364). Step 3: Ink delivery. Part of the ink fountain roller (371) is located inside the ink fountain and directly contacts the ink. Driven by the drive box (31), the ink fountain roller (371) rotates to transfer the ink to the printing plate (33). The graphic area of the printing plate (33) adsorbs the ink. Since oil and water repel each other, clear graphics are finally produced on the printing plate (33). Step 4: Visual acquisition. The paper passes directly below the blanket cylinder (32) and then through the vision component (38). The main CCD camera (382) acquires the graphic pattern on the surface of the printed material, and the secondary CCD camera (383) acquires the printed material to obtain information such as the graphic thickness of the printed material. Step 5: Proportional adjustment. The printing plate (33) is driven to move up and down. The printing plate (33) drives the dovetail block (35) to slide in the chute (34), driving the blanket cylinder (32) to move up and down together with the printing plate (33), thereby proportionally adjusting the gap between the printing plate (33) and the dampening solution component (36) and the ink component (37), and proportionally adjusting the supply amounts of the dampening solution and the ink. Step 6: Balance control. The telescopic rod (3665) is started. The output end of the telescopic rod (3665) drives the movable sleeve plate (3664) to move, driving the adjusting roller (3661) to move. Finally, the distance between the adjusting roller (3661) and the water applicator roller (365) is adjusted, thereby controlling the thickness of the dampening solution on the surface of the water applicator roller (365) and realizing the adjustment of the supply amount of the dampening solution. The electric rotating rod drives the ink fountain blade (373) to rotate, adjusting the distance between the ink fountain blade (373) and the ink fountain roller (371) to achieve the purpose of adjusting the thickness of the ink on the surface of the ink fountain roller (371), thereby adjusting the supply amount of the ink.

Images