Ink misting prevention device and ink misting prevention method for printing machine

Abstract

The invention discloses a printing machine ink flying prevention device and method, and relates to the technical field of printing machines, the printing machine ink flying prevention device comprises a device body, a sealing cover, an ink scraping plate and a second rotating shaft, one side of the device body is fixedly connected with a wall plate, and one side of the wall plate is rotationally connected with two sets of symmetrically-arranged first rotating shafts; a net roller is fixedly connected to the exterior of one set of first rotating shafts, a rubber roller is fixedly connected to the exterior of the other set of first rotating shafts, bearings are fixedly connected to the tail ends of the first rotating shafts, and a fixing plate is fixedly connected to the exterior of the wall plate. A clamping groove is formed in the exterior of the ink scraping plate, a spring is fixedly connected to the exterior of the fixing shaft, and a spraying mechanism is installed on the other side of the device body. According to the device, the net roller and the rubber roller work cooperatively and are combined with the self-adaptive ink scraping plate, ink splashing in the printing process is remarkably reduced, the spraying system provides necessary lubrication and cooling for key components, stable operation of the printing machine is ensured, meanwhile, the overall structural design is ingenious, and the printing efficiency and quality are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of printing presses, and in particular to an ink flying prevention device and an ink flying prevention method for a printing press. Background Art

[0002] In the printing industry, especially in high-speed printing, the problem of ink splashing has always been a technical problem that needs to be solved urgently. Traditional printing press designs often ignore the dynamic characteristics of ink during high-speed transmission, which causes the ink to be easily thrown out when the roller rotates at high speed, forming a splashing phenomenon. This not only causes contamination of printed products and affects printing quality, but also wastes a lot of ink and increases production costs.

[0003] In addition, the existing printing presses are usually designed to prevent ink splashing, such as simply adding baffles or changing the material of the roller to try to reduce splashing. However, these methods often have limited effects and cannot fundamentally solve the problem of ink splashing. At the same time, they may also affect the normal operation of the printing press, such as increasing friction and reducing printing speed.

[0004] In addition, the long-term operation of the printing press requires close cooperation and stable operation between various components. However, traditional printing presses often have deficiencies in component design and material selection, resulting in serious wear and corrosion problems between components. This will not only reduce the service life of the printing press, but also increase maintenance costs. Therefore, in view of the above technical problems, a printing press anti-flying ink device and an anti-flying ink method are proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a printing press anti-ink flying device and anti-ink flying method, which not only realizes the precise control of the internal temperature, but also greatly simplifies the opening and closing process of the opening and closing door, not only improves the comfort and safety of animals, but also realizes energy conservation and environmental protection.

[0006] The present invention is achieved through the following technical solutions:

[0007] A device for preventing ink flying of a printing press, comprising:

[0008] The device body has a wall panel fixedly connected to one side thereof, and two groups of symmetrically arranged first rotating shafts are rotatably connected to one side of the wall panel, wherein a mesh roller is fixedly connected to the outside of one group of the first rotating shafts, and a rubber roller is fixedly connected to the outside of the other group of the first rotating shafts, and a bearing is fixedly connected to the end of the first rotating shaft, and a fixing plate is fixedly connected to the outside of the wall panel;

[0009] A sealing cover is fixedly connected to the other side of the device body, a maintenance hole plate is opened on the outside of the sealing cover, and an ink barrel is fixedly connected to the bottom of the sealing cover;

[0010] The ink scraper has a slot on the outside, a fixed shaft is fixedly connected to one side of the wall plate, a spring is fixedly connected to the outside of the fixed shaft, and the spring is clamped to the inner side of the slot;

[0011] The second rotating shaft is rotatably connected to one side of the wall panel and is located at the lower side of the first rotating shaft. The outside of the second rotating shaft is fixedly connected with a printing roller. A spray mechanism is installed on the other side of the device body.

[0012] Preferably, the bearing is slidably connected to the outside of the fixing plate.

[0013] Preferably, one group of the first rotating shafts is externally fixedly connected to a driving motor, and another group of the first rotating shafts is externally fixedly connected to a gear.

[0014] Preferably, the ink scraper is slidably connected to the screen roller and the rubber roller.

[0015] Preferably, an ink tank cover is fixedly connected to the upper side of the ink scraper plate, and the side edge of the ink tank cover is slidably connected to the screen roller and the rubber roller.

[0016] Preferably, the spray mechanism includes a circuit box, a fan and a printing air outlet, the circuit box is fixedly connected to the device body, the fan is fixedly connected to the bottom of the circuit box, the printing air outlet is fixedly connected to the upper side of the device body, and the printing air outlet is located directly above the fan.

[0017] Preferably, track wheels are fixedly connected to the bottom of the device body, and the track wheels are in several groups and arranged in an array.

[0018] Preferably, the ink scraper can be replaced by an ink scraper A, and an ink scraper A is provided with a slot on its outside. A fixed shaft A is fixedly connected to one side of the wall panel, and a spring A is fixedly connected to the outside of the fixed shaft A. The ink scraper A includes a first ink scraper, a second ink hanging plate, and a bottom plate. The first ink scraper and the second ink hanging plate can be connected to a rubber roller and a mesh roller respectively. The bottom plate is connected to four movable rods, two of which are connected to the first ink scraper, and the remaining two are connected to the second ink hanging plate. Each movable rod is set to squeeze the first ink scraper or the second ink hanging plate. The pressure is the same so that the first ink scraper plate and the second ink hanging plate have the same extrusion force on the rubber roller or the mesh roller; the bottom plate is provided with 4 pressure control chambers, the 4 pressure control chambers are interconnected so that the air pressure in the 4 pressure control chambers is the same, each pressure control chamber is provided with a pressure control piston, the air pressure piston can move in the pressure control chamber, and the 4 pressure control pistons are respectively connected to the 4 movable rods; the air pressure piston divides the pressure control chamber into 2 areas, one of which is provided with an airway connected to the outside world so that the area has a constant air pressure, and the other area is respectively connected to the connecting channels, and the connecting channels connect the 4 pressure control chambers.

[0019] The present application also discloses a method for preventing ink flying, comprising the following steps:

[0020] S1: The fixing plates of the rubber roller and the screen roller are designed and placed on the outside of the wall panel, which are completely isolated from the ink to avoid the corrosion and adhesion of the ink to damage the bearing oil seal, thereby ensuring the long-term stable operation of the printing press.

[0021] S2: Use a spray lubrication system to lubricate the rubber rollers, screen rollers and fixed plates on the side of the gear, making these parts more durable and stable when running at high speeds. The spray system can evenly spray lubricants to ensure that all key components are fully lubricated, reduce friction and wear, and improve the overall performance of the printing press.

[0022] S3: During the printing process, a nylon scraper is used to fit the rubber roller and the screen roller. The scraper has a spring behind it, which can adjust the fit according to the roller's running speed. This design can effectively scrape off excess ink on the roller and prevent the ink from splashing when running at high speed, thereby reducing the flying ink phenomenon and improving printing quality and efficiency. At the same time, the nylon scraper is wear-resistant and corrosion-resistant, and can maintain a stable scraping effect for a long time.

[0023] The technical solution of the present invention has at least the following beneficial effects:

[0024] 1. The anti-flying ink device of the printing press fixes two groups of symmetrically arranged first rotating shafts through wall panels. One group of first rotating shafts is equipped with a screen roller for evenly applying ink, and the other group is equipped with a rubber roller, which works together with the screen roller to ensure the uniform transfer of ink, which not only improves the printing quality, but also makes the water more stable during the transfer process and reduces the possibility of splashing.

[0025] 2. The anti-flying ink device of the printing press is designed with a fixed plate on the outside of the wall panel to support and fix the bearing, which can completely isolate the bearing from the ink, avoiding the corrosion and adhesion of the ink to damage the bearing oil seal, thereby ensuring the long-term stable operation of the printing press.

[0026] 3. The ink-flying prevention device of the printing press uses a slot to connect the ink scraper to the spring on the fixed shaft, so that the ink scraper can adaptively adjust the fit with the screen roller and the rubber roller. During the printing process, the ink scraper fits tightly on the roller, effectively scraping off excess ink and preventing the ink from splashing when running at high speed. At the same time, the ink scraper is made of wear-resistant and corrosion-resistant nylon material, which can maintain a stable ink scraping effect for a long time.

[0027] 4. The ink flying prevention device of the printing press and the spray mechanism further enhance the ink flying prevention capability of the present invention. The spray mechanism controls the operation of the fan through the circuit box, and evenly sprays the lubricant or coolant on the key components of the printing press, such as gears, screen rollers, rubber rollers, etc. This not only reduces the friction and wear between the components and improves the overall performance of the printing press, but also reduces the adhesion and splashing of ink through lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of Example 1;

[0029] Figure 2 This is an enlarged view of the local structure of Example 1;

[0030] Figure 3 It is a second overall structural schematic diagram of Example 1;

[0031] Figure 4 for Figure 3 A magnified view of middle;

[0032] Figure 5 It is a third overall structural schematic diagram of Example 1;

[0033] Figure 6 for Figure 5 Enlarged view of middle B;

[0034] Figure 7 is a schematic diagram of the position of the ink tank cover of Example 1;

[0035] Figure 8 is a schematic diagram of Example 2;

[0036] Fig. 9 This is a schematic diagram of the ink scraper of Example 2;

[0037] Fig.10 is a cross-sectional view of the ink scraper of Example 2;

[0038] Fig.11 is a partial cross-sectional view of the ink scraper of Example 2;

[0039] Fig.12 It is the front view of the squeegee;

[0040] Icons: 1. Device body; 2. Wall panel; 3. Fixed plate; 4. First rotating shaft; 5. Screen roller; 6. Rubber roller; 7. Bearing; 8. Gear; 9. Drive motor; 10. Cover; 11. Maintenance hole plate; 12. Ink barrel; 13. Fixed shaft; 13A. Fixed shaft A; 14. Spring; 14A. Spring A; 15. Scraper plate; 15A. Scraper plate A; 151. First scraper plate; 152. Second ink hanging plate; 153. Bottom plate; 154. Pressure control chamber; 155. Pressure control piston; 156. Movable rod; 157. Airway; 158. Connecting channel; 16. Card slot; 17. Ink tank cover; 18. Second rotating shaft; 19. Printing roller; 20. Reducer motor; 21. Circuit box; 22. Fan; 23. Printing air outlet; 24. Track wheel. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0042] Example 1

[0043] See also Figure 1-6 The present application proposes a device for preventing ink flying from a printing press, comprising a device body 1, a cover 10, an ink scraper 15 and a second rotating shaft 18. A wall panel 2 is fixedly connected to one side of the device body 1, and two groups of symmetrically arranged first rotating shafts 4 are rotatably connected to one side of the wall panel 2. A mesh roller 5 is fixedly connected to the outside of one group of the first rotating shafts 4, and the mesh roller 5 is used to evenly apply ink. A rubber roller 6 is fixedly connected to the outside of the other group of the first rotating shafts 4, which can work in coordination with the mesh roller 5. A bearing 7 is fixedly connected to the end of the first rotating shaft 4, and a fixing plate 3 is fixedly connected to the outside of the wall panel 2; the cover 10 is fixedly connected to the outside of the wall panel 2. It is fixedly connected to the other side of the device body 1, a maintenance hole plate 11 is opened on the outside of the cover 10, and an ink barrel 12 is fixedly connected to the bottom of the cover 10; a card slot 16 is opened on the outside of the scraper plate 15, one side of the wall panel 2 is fixedly connected to a fixed shaft 13, the outside of the fixed shaft 13 is fixedly connected to a spring 14, and the spring 14 is clamped on the inner side of the card slot 16; a second rotating shaft 18 is rotatably connected to one side of the wall panel 2, and the second rotating shaft 18 is located on the lower side of the first rotating shaft 4, and the outside of the second rotating shaft 18 is fixedly connected to a printing roller 19, and a spray mechanism is installed on the other side of the device body 1.

[0044] The bearing 7 is slidably connected to the outside of the fixed plate 3 , the outside of one group of the first rotating shafts 4 is fixedly connected to the driving motor 9 , and the outside of the other group of the first rotating shafts 4 is fixedly connected to the gear 8 .

[0045] The ink scraper 15 is slidably connected to the screen roller 5 and the rubber roller 6 . An ink tank cover 17 is fixedly connected to the upper side of the ink scraper 15 , and the side edge of the ink tank cover 17 is slidably connected to the screen roller 5 and the rubber roller 6 .

[0046] The spray mechanism includes a circuit box 21, a fan 22 and a printing air outlet 23. The circuit box 21 is fixedly connected to the device body 1. The fan 22 is fixedly connected to the bottom of the circuit box 21. The printing air outlet 23 is fixedly connected to the upper side of the device body 1, and the printing air outlet 23 is located directly above the fan 22. The bottom of the device body 1 is fixedly connected with a track wheel 24, and the number of the track wheels 24 is several groups and arranged in an array.

[0047] The working principle of the ink flying prevention device for a printing press based on the embodiment is as follows: first, the device body 1 serves as a supporting platform for the entire system, and two groups of symmetrically arranged first rotating shafts 4 are fixed by the wall panels 2, wherein a mesh roller 5 is installed on one group of the first rotating shafts 4 for evenly applying ink, and a rubber roller 6 is installed on the other group, which cooperates with the mesh roller 5 to ensure even transfer of ink, which not only improves the printing quality, but also makes the water more stable during the transfer process, reducing the possibility of splashing;

[0048] In order to further prevent ink splashing, a fixing plate 3 is designed on the outside of the wall panel 2 to support and fix the shaft 13 bearing 7, which can completely isolate the bearing 7 from the ink, avoiding the corrosion and adhesion of the ink to damage the oil seal of the bearing 7, thereby ensuring the long-term stable operation of the printing press;

[0049] In addition, the ink scraper 15 is connected to the spring 14 on the fixed shaft 13 through the slot 16, so that the ink scraper 15 can adaptively adjust the fit with the screen roller 5 and the rubber roller 6. During the printing process, the ink scraper 15 is closely attached to the roller, effectively scraping off excess ink and preventing the ink from being splashed when running at high speed. At the same time, the ink scraper 15 is made of wear-resistant and corrosion-resistant nylon material, which can maintain a stable ink scraping effect for a long time.

[0050] The spray mechanism further enhances the anti-ink flying capability of the present invention. The spray mechanism controls the operation of the fan 22 through the circuit box 21, and evenly sprays the lubricant or coolant on the key components of the printing press, such as the gear 8, the screen roller 5, the rubber roller 6, etc. This not only reduces the friction and wear between the components and improves the overall performance of the printing press, but also reduces the adhesion and splashing of ink through lubrication.

[0051] The present invention also provides a method for preventing ink flying, comprising the following steps:

[0052] First, the fixing plate 3 of the rubber roller 6 and the screen roller 5 is designed and placed on the outside of the wall panel 2, completely isolated from the ink, so as to avoid the corrosion and adhesion of the ink to damage the oil seal of the bearing 7, thereby ensuring the long-term stable operation of the printing press.

[0053] Next, the spray lubrication system is used to lubricate the rubber roller 6, screen roller 5 and fixed plate 3 on the side of the gear 8, making these components more durable and stable when running at high speed. The spray system can evenly spray lubricant to ensure that all key components are fully lubricated, reduce friction and wear, and improve the overall performance of the printing press.

[0054] Finally, during the printing process, a nylon scraper 15 is used to fit the rubber roller 6 and the screen roller 5. A spring 14 is provided behind the scraper 15, and the fit can be adaptively adjusted according to the running speed of the roller. This design can effectively scrape off excess ink on the roller, prevent the ink from being splashed when running at high speed, thereby reducing the flying ink phenomenon and improving the printing quality and efficiency. At the same time, the nylon scraper 15 is wear-resistant and corrosion-resistant, and can maintain a stable scraping effect for a long time.

[0055] Example 2.

[0056] When the ink scraper 15 in Embodiment 1 is used, it is found that the contact between the ink scraper 15 and the rubber roller 6 or the mesh roller 5 is uneven, resulting in a gap between the ink scraper 15 and the rubber roller 6 or the mesh roller 5, causing ink leakage and splashing. In order to improve the above problem, this embodiment improves the ink scraper 15 in Embodiment 1, specifically, as follows Fig. 9 and Fig.10As shown, the improved scraper A15A has a slot 16 on the outside, one side of the wall panel 2 is fixedly connected to a fixed shaft A13A, the outside of the fixed shaft A13A is fixedly connected to a spring A14A, the scraper A15A includes a first scraper 151, a second ink hanging plate 152, and a bottom plate 153, the first scraper 151 and the second ink hanging plate 152 can be connected to the rubber roller 6 and the mesh roller 5 respectively, the bottom plate 153 is connected to four movable rods 156, two of which are connected to the first scraper 151, and the remaining two are connected to the second ink hanging plate 152, each movable rod 156 is set to The squeezing pressure of the first ink scraper 151 or the second ink hanging plate 152 is the same so that the squeezing pressure of the first ink scraper 151 and the second ink hanging plate 152 on the rubber roller 6 or the mesh roller 5 is the same; four pressure control chambers 154 are arranged in the bottom plate 153, and the four pressure control chambers 154 are interconnected so that the air pressure in the four pressure control chambers 154 is the same, and each pressure control chamber 154 is provided with a pressure control piston 155, and the air pressure piston 155 can move in the pressure control chamber 154, and the four pressure control pistons 155 are respectively connected to the four movable rods 156; the pressure control chamber 154 and the outside are connected through a connecting channel narrower than the pressure control chamber 154, and the end of the movable rod enters the pressure control chamber 154 through the connecting channel. The air compressor piston 155 divides the pressure control chamber 154 into two areas, one of which is provided with an air channel 157 connected to the outside so that the area has a constant air pressure, and the other areas are respectively connected to the connecting channels 158, and the connecting channels 158 connect the four pressure control chambers 154; the two ends of the spring A14A are respectively in contact with the bottom plate 153 and the wall panel 2, one end of the fixed shaft A13A is fixedly connected to the bottom plate 153, and the other end is movably connected to the wall panel 2. Under the elastic force of the spring A, the bottom plate 153 tends to move toward the rubber roller 6 and the mesh roller 5. More specifically, a channel is provided in the wall panel 2, and one end of the fixed shaft A13A can move in the channel.

[0057] like Fig.10 When in use, the pressure control piston 155 at the end of the two movable rods 156 connected to the first ink scraper 151 is subjected to the same pressure of the pressure control chamber 154 (the four movable rods, the pressure control piston, and the pressure control chamber have the same specifications and dimensions), so that the two movable rods 156 connected to the first ink scraper 151 squeeze the first ink scraper 151 in the same way, so that the first ink scraper 151 can contact the rubber roller 6 on a larger plane, with uniform contact force, to prevent ink splashing. The principle of the screen roller 5 is the same.

[0058] Furthermore, since the first ink scraper plate 151 and the second ink hanging plate 152 are subjected to the same active rod 156, the force of the spring A14A on the bottom plate 2 can be evenly distributed to the two ink scrapers, and the two ink scrapers are further evenly contacted with the rubber roller 6 and the mesh roller 5, avoiding the formation of gaps between the rubber roller 6, the mesh roller 5 and the ink scrapers, thereby preventing ink from splashing.

[0059] More specifically, the connecting channel 158 is connected to an air pump (not shown in the figure), which can control the air pressure in the connecting channel 158 and thus control the squeezing force of the first ink scraper plate 151 and the second ink hanging plate 152 on the rubber roller 6 and the mesh roller 5, and then adjust it according to actual needs.

[0060] The first ink scraper 151 and the second ink hanging plate 152 can be separate or can be in contact with each other in the side direction, and usually the cross-section surface is smooth.

[0061] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for preventing ink flying of a printing press, characterized in that: include: The device body (1) has a wall panel (2) fixedly connected to one side thereof, and two groups of symmetrically arranged first rotating shafts (4) are rotatably connected to one side of the wall panel (2), wherein the outside of one group of the first rotating shafts (4) is fixedly connected to a mesh roller (5), and the outside of the other group of the first rotating shafts (4) is fixedly connected to a rubber roller (6), and the end of the first rotating shaft (4) is fixedly connected to a bearing (7), and the outside of the wall panel (2) is fixedly connected to a fixing plate (3); A sealing cover (10) is fixedly connected to the other side of the device body (1), a maintenance hole plate (11) is provided on the outside of the sealing cover (10), and an ink barrel (12) is fixedly connected to the bottom of the sealing cover (10); The ink scraper A (15A) has a slot (16) on the outside, one side of the wall panel (2) is fixedly connected to a fixed shaft A (13A), the outside of the fixed shaft A (13A) is fixedly connected to a spring A (14A), the ink scraper A (15A) comprises a first ink scraper (151), a second ink hanging plate (152), and a bottom plate (153), the first ink scraper (151) and the second ink hanging plate (152) can be connected to the rubber roller (6) and the mesh roller (5) respectively. Then, the bottom plate (153) is connected to four movable rods (156), two of which are connected to the first ink scraper (151), and the remaining two movable rods (156) are connected to the second ink hanging plate (152), and each movable rod (156) is set to exert the same extrusion force on the first ink scraper (151) or the second ink hanging plate (152) so that the first ink scraper (151) and the second ink hanging plate (152) exert the same extrusion force on the rubber roller (6) or the mesh roller (5); The second rotating shaft (18) is rotatably connected to one side of the wall panel (2), and the second rotating shaft (18) is located at the lower side of the first rotating shaft (4). A printing roller (19) is fixedly connected to the outside of the second rotating shaft (18), and a spray mechanism is installed on the other side of the device body (1).

2. The ink flying prevention device for a printing press according to claim 1, characterized in that: The bottom plate (153) is provided with four pressure control chambers (154), the four pressure control chambers (154) are interconnected so that the air pressure in the four pressure control chambers (154) is the same, each pressure control chamber (154) is provided with a pressure control piston (155), the air pressure piston (155) can move in the pressure control chamber (154), and the four pressure control pistons (155) are respectively connected to the four movable rods (156); the air pressure piston (155) divides the pressure control chamber (154) into two areas, one of which is provided with an air channel (157) and is connected to the outside so that the area has a constant air pressure, and the other area is respectively connected to a connecting channel (158), and the connecting channel (158) connects the four pressure control chambers (154).

3. The ink flying prevention device for a printing press according to claim 1, characterized in that: The bearing (7) is slidably connected to the outside of the fixing plate (3).

4. The ink flying prevention device for a printing press according to claim 1, characterized in that: The outside of one group of the first rotating shafts (4) is fixedly connected to a driving motor (9), and the outside of another group of the first rotating shafts (4) is fixedly connected to a gear (8).

5. The ink flying prevention device for a printing press according to claim 1, characterized in that: The ink scraper (15) is slidably connected to the screen roller (5) and the rubber roller (6).

6. The ink flying prevention device for a printing press according to claim 4, characterized in that: The upper side of the ink scraper (15) is fixedly connected with an ink tank cover (17), and the side edge of the ink tank cover (17) is slidably connected with the screen roller (5) and the rubber roller (6).

7. The ink flying prevention device for a printing press according to claim 1, characterized in that: The spray mechanism comprises a circuit box (21), a fan (22) and a printing air outlet (23); the circuit box (21) and the device body (1) are fixedly connected; the fan (22) is fixedly connected to the bottom of the circuit box (21); the printing air outlet (23) is fixedly connected to the upper side of the device body (1); and the printing air outlet (23) is located directly above the fan (22).

8. The ink flying prevention device for a printing press according to claim 1, characterized in that: The bottom of the device body (1) is fixedly connected with a track wheel (24), and the track wheels (24) are in a plurality of groups and arranged in an array.

9. A method for preventing ink flying, applied to the device for preventing ink flying of a printing press according to claims 1 to 8, characterized in that , the method for using the storage device includes: S1: The fixing plate (3) of the rubber roller (6) and the screen roller (5) is designed and placed on the outside of the wall panel (2) to be completely isolated from the ink, so as to prevent the corrosion and adhesion of the ink from damaging the oil seal of the bearing (7), thereby ensuring the long-term stable operation of the printing press. S2: Use a spray lubrication system to lubricate the rubber roller (6), screen roller (5) and fixed plate (3) on the side of the gear (8), making these parts more durable and stable when running at high speed. The spray system can evenly spray lubricant to ensure that all key parts are fully lubricated, reduce friction and wear, and improve the overall performance of the printing press. S3: During the printing process, a nylon scraper (15) is used to fit the rubber roller (6) and the screen roller (5). A spring (14) is provided behind the scraper, and the fit can be adjusted according to the running speed of the roller. This design can effectively scrape off excess ink on the roller, prevent the ink from being splashed when running at high speed, thereby reducing the flying ink phenomenon and improving the printing quality and efficiency. At the same time, the nylon scraper is wear-resistant and corrosion-resistant, and can maintain a stable scraping effect for a long time.

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