Gravure printing roller capable of preventing ink flying

Abstract

The utility model discloses an intaglio printing roller capable of preventing ink flying, which comprises a roller body, a multi-stage shaft rod is arranged at the center points of the surfaces of the two ends of the roller body, the multi-stage shaft rod is in transmission connection with an external driving device to rotate, the multi-stage shaft rod is provided with a splash-proof outer frame through a bearing sleeve, and the splash-proof outer frame does not rotate along with the roller body and blocks printing ink. The splash-proof outer frame is arranged on the outer side of the roller body, the arc-surface ink baffles are installed on the front portion and the rear portion of the upper end of the splash-proof outer frame, the splash-proof outer frame is tightly attached to the upper area of the roller body, and an ink splashing path is covered to the maximum degree. And during high-speed rotation, the cambered surface guides the ink to slide down, so that flying ink overflowing to equipment and environment is effectively reduced, ink waste and cleaning cost are reduced, and the flying ink blocking effect is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of gravure printing technology, specifically relating to a gravure printing roller to prevent ink splatter. Background Technology

[0002] In the printing industry, gravure printing is widely used due to its advantages such as thick ink layers and vibrant colors. As a core component, the gravure printing roller's structural design directly affects printing quality and production efficiency. During rotation, the gravure printing roller is immersed in an ink tank to carry the ink. However, when the roller rotates at high speed, the ink adhering to its surface is easily thrown out by centrifugal force, resulting in "ink splatter." In existing technologies, some gravure printing rollers attempt to solve the ink splatter problem by installing fixed baffles or protective covers on the outside of the roller. However, such structures often have the following shortcomings: existing anti-splatter devices are difficult to effectively block and collect splashed ink when the roller rotates. Furthermore, the traditional baffles do not adhere well to the roller surface, especially in the upper area of ​​the roller, where the ink splatter path is not completely covered, causing splashed ink to still overflow into the equipment or working environment, resulting in ink waste and increased cleaning costs. Utility Model Content

[0003] The purpose of this invention is to provide a gravure printing roller that prevents ink splatter, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gravure printing roller for preventing ink splatter, comprising:

[0005] The roller body has a multi-stage shaft that is rotated by an external drive device and a transmission connection at the center point of both ends of the roller body. The multi-stage shaft is fitted with a splash-proof frame that does not rotate with the roller body and blocks the printing ink through bearings. The splash-proof frame is located on the outside of the roller body.

[0006] The ink tank has mounting and connecting support plates on both sides of its end that are fixed to the bottom sides of the anti-splash frame. The upper end of the anti-splash frame has ink baffles at the front and rear to allow the roller to rotate and block the ink that is thrown out.

[0007] Preferably, one end surface of the ink baffle is arc-shaped, and the arc-shaped side of the ink baffle is attached to the front and rear surfaces of the roller body and close to the top, so as to prevent ink from overflowing into the equipment or working environment, effectively reduce ink waste and lower cleaning costs.

[0008] Preferably, the bottom inner side of the anti-splash frame is provided with a receiving plate extending inward to catch the splashed ink, and the ends of the receiving plate are all inclined with a discharge groove, which realizes the effective recycling of splashed ink, not only saving ink resources, but also keeping the inside of the equipment clean.

[0009] Preferably, the mounting connection plate is provided with a through mounting lock hole, and the mounting lock hole is provided with locking bolts to fix the mounting connection plate to the left and right sides of the upper end of the ink tank. This avoids the reduction of the ink-blocking effect due to loosening, ensures the reliability of the equipment during long-term operation, and provides structural stability guarantee for effectively preventing ink splatter.

[0010] Preferably, a rubber scraper is inclined upward on one side wall inside the anti-splash frame, and one end of the inclined surface of the rubber scraper is attached to the bottom side of one side of the roller body to scrape the ink evenly, remove excess ink adhering to the surface of the roller body and distribute it evenly, and prevent a large amount of ink splatter from being generated when the roller body rotates due to excessive ink.

[0011] Preferably, bearing components are embedded and fixed at the center positions of both sides of the anti-splash frame, and the inner ring of the bearing component is fixed to the surface of the multi-stage shaft, ensuring that the anti-splash frame stably blocks ink from splashing onto the roller, avoiding component wear caused by friction, and extending the service life of the equipment.

[0012] Preferably, the surface of the roller body is provided with a gravure cavity, and the gravure cavity is provided with a gravure layer at the same level as the surface of the roller body. The design of the gravure cavity and the gravure layer ensures that the ink can be effectively adhered to and transferred to the printing material. The reasonable structural setting makes the ink bearing and transfer process on the surface of the roller body more stable and reduces the abnormal ink splashing caused by unreasonable roller body surface structure.

[0013] Preferably, after the roller body is fixed to the end of the ink tank by the anti-splash frame and the mounting connecting plate, the bottom end of the roller body is immersed in the ink in the ink tank, which ensures that the roller body can stably obtain ink from the ink tank. At the same time, with the cooperation of the anti-splash frame and the ink baffle, even if the roller body rotates in the ink and carries ink, it can effectively prevent ink splashing.

[0014] Compared with existing technologies, the technical effects and advantages of this utility model are as follows: This anti-splash gravure roller, by setting an anti-splash frame on the outside of the roller body and installing arc-shaped ink baffles at the front and rear of its upper end, closely fits the upper area of ​​the roller body, maximizing the coverage of the ink splash path. When rotating at high speed, the arc surface guides the ink to slide down, effectively reducing ink spillage into the equipment and environment, reducing ink waste and cleaning costs, and significantly improving the ink splash blocking effect.

[0015] The inner bottom of the splash-proof frame is equipped with a receiving plate and an inclined discharge trough to catch the ink blocked by the baffle and automatically return it to the ink tank, achieving effective recycling of splashed ink. This saves ink resources, prevents disorderly ink accumulation inside the equipment, reduces the risk of equipment failure caused by ink buildup, keeps the equipment clean, and improves the stability and sustainability of the printing process.

[0016] The mounting bracket securely fixes the splash-proof frame to the ink tank using mounting holes and locking bolts. This ensures the frame remains stable even under high-speed rotation and vibration of the roller, preventing loosening and reduced ink-blocking effectiveness. Simultaneously, bearings are embedded on both sides of the splash-proof frame to reduce frictional resistance with the multi-stage shafts, ensuring continuous effectiveness of the splash-proof function, extending equipment lifespan, and providing structural stability for efficient gravure roller operation. Attached Figure Description

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

[0018] Figure 2 This is a top view of the present invention;

[0019] Figure 3 This is a top view of the splash-proof outer frame of this utility model;

[0020] Figure 4 This is a top view of the internal structure of the splash-proof outer frame of this utility model;

[0021] Figure 5 This is a side view of the splash-proof outer frame and roller body of this utility model;

[0022] Figure 6 This is a side view of the gravure printing roller of this utility model.

[0023] In the diagram: 1. Roller body; 2. Multi-stage shaft; 3. Anti-splash frame; 4. Ink tank; 5. Mounting connecting plate; 7. Ink baffle; 8. Receiving plate; 9. Feed chute; 10. Mounting lock hole; 11. Rubber scraper; 12. Bearing components; 13. Gravure printing cavity; 14. Gravure printing layer. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This utility model provides a technical solution: a gravure printing roller for preventing ink splatter, comprising:

[0026] The roller 1 has an intaglio printing cavity 13 and an intaglio printing layer 14 on its surface. Its function is to carry ink and transfer it to the printing material to achieve intaglio printing. During rotation, the roller 1 obtains ink from the ink tank 4, providing the necessary ink source for printing. At the same time, its rotation speed and stability directly affect the printing efficiency and quality. The roller 1 works in conjunction with other structural components, such as the splash-proof frame 3 and the ink baffle 7, to reduce the interference of ink splashing on the printing process, ensure that the ink is transferred evenly and stably to the printing material, and improve the quality of the printed product. At the center point of the surface at both ends of the roller 1, there are multi-stage shafts 2 that are rotated by external drive equipment and transmission connection. The two ends of the multi-stage shafts 2 are connected to the center point of the surface of the roller 1. Through the transmission connection with the external drive equipment, the driving force is transmitted to the roller 1, driving the roller 1 to rotate at high speed, providing power support for ink transfer and the printing process. Furthermore, the multi-stage shaft 2 serves as the support shaft for the anti-splash frame 3, and is connected to the anti-splash frame 3 via bearing 12. This allows the anti-splash frame 3 to stably block ink splatter from the roller 1 without rotating with it, ensuring the normal operation of the entire device. The multi-stage shaft 2 is fitted with the anti-splash frame 3, which does not rotate with the roller 1 and blocks printing ink, and is located on the outside of the roller 1. The anti-splash frame 3 is a key structure for preventing ink splatter. Its main function is to create a protective space to block ink splatter when the roller 1 rotates. The ink baffle 7 at the upper end of the anti-splash frame 3 effectively blocks ink from splashing upwards, and the receiving plate 8 at the bottom inside collects the falling ink, achieving ink splatter collection. The internal rubber scraper 11 can scrape off excess ink on the surface of the roller 1, preventing increased ink splatter due to excessive ink. The anti-splash outer frame 3 is fixed to the ink tank 4 by the mounting connecting plate 5, ensuring that its position is stable during the rotation of the roller body 1 and continuously playing the role of preventing ink splashing;

[0027] The ink tank 4 stores the ink required for printing, providing an ink source for the roller 1. The bottom of the roller 1 is immersed in the ink in the ink tank 4, carrying ink during rotation to meet printing needs. Simultaneously, the ink tank 4 is fixedly connected to the anti-splash frame 3 via mounting connecting plates 5, providing a mounting base for the entire anti-splash device, ensuring coordinated operation of all components, and maintaining the continuity and stability of the printing process. Mounting connecting plates 5 are provided on both sides of the ink tank 4's ends, fixed to the bottom sides of the anti-splash frame 3. The two ends of the mounting connecting plates 5 are respectively connected to the bottom sides of the anti-splash frame 3 and the ends of the ink tank 4. Their function is to firmly fix the anti-splash frame 3 onto the ink tank 4, ensuring that the anti-splash frame 3 will not loosen or shift even when the roller 1 rotates at high speed and vibrates, guaranteeing the stability of the anti-splash structure, and enabling the anti-splash frame 3 to continuously and effectively block ink from splashing onto the roller 1. By using the locking holes 10 and locking bolts, the mounting connecting plate 5 and the ink tank 4 can be detachably fixed, facilitating the installation, debugging, and maintenance of the equipment. The upper end of the anti-splash frame 3 is equipped with ink baffles 7 at the front and rear, which allow the roller 1 to rotate and block the splashed ink. The ink baffles 7 are located at the front and rear of the upper end of the anti-splash frame 3, with one end having an arc surface that fits tightly against the front and rear surfaces of the roller 1 near the top. When the roller 1 rotates at high speed, the ink baffles 7 can cover the main upward splash path of the ink. The arc surface design guides the splashed ink to slide down along the baffle surface, preventing ink from overflowing into the equipment and working environment, greatly reducing ink splatter and lowering ink waste and cleaning costs.

[0028] One end surface of the ink baffle 7 is curved, and the curved side of the ink baffle 7 is attached to the front and rear surfaces of the roller body 1 and near the top. A receiving plate 8 extends inward from the bottom of the inner side of the anti-splash frame 3 to catch the falling ink. Each end of the receiving plate 8 has an inclined discharge groove 9. The receiving plates 8 are positioned at the front and rear of the bottom of the inner side of the anti-splash frame 3 to catch the ink that falls after being blocked by the ink baffle 7. The inclined discharge groove 9 at the end of the receiving plate 8 allows the collected ink to automatically flow back into the ink tank 4. This design achieves effective recycling of splashed ink, not only saving ink resources but also preventing ink accumulation at the bottom of the anti-splash frame 3, keeping the inside of the equipment clean, and reducing the risk of equipment failure caused by ink accumulation.

[0029] The mounting connecting plate 5 has through mounting locking holes 10, and each mounting locking hole 10 contains locking bolts for fixing the mounting connecting plate 5 to the left and right sides of the upper end of the ink tank 4. The mounting locking holes 10 are through the mounting connecting plate 5; by inserting and tightening the locking bolts, the mounting connecting plate 5 can be firmly fixed to the left and right sides of the upper end of the ink tank 4. This connection method ensures the stability of the connection between the splash-proof outer frame 3 and the ink tank 4, preventing the splash-proof outer frame 3 from loosening when the roller 1 vibrates at high speed.

[0030] A rubber scraper 11 is inclined upward on one side wall inside the anti-splash frame 3, and one end of the rubber scraper 11 is attached to the bottom side of one side of the roller body 1 to evenly scrape the ink. During the rotation of the roller body 1, the rubber scraper 11 can scrape off excess ink adhering to the surface of the roller body 1 and evenly distribute the ink on the surface of the roller body 1. On the one hand, this prevents excessive ink splattering when the roller body 1 rotates at high speed due to excessive ink; on the other hand, it ensures a uniform ink layer thickness on the surface of the roller body 1, which helps improve printing quality.

[0031] Bearing components 12 are embedded and fixed at the center positions of both sides of the splash-proof outer frame 3, and the inner ring of the bearing component 12 is fixed to the surface of the multi-stage shaft 2. The function of the bearing component 12 is to allow relative rotation between the splash-proof outer frame 3 and the multi-stage shaft 2, reducing the frictional resistance between the splash-proof outer frame 3 and the multi-stage shaft 2 when the roller body 1 rotates at high speed. This ensures both the stable installation of the splash-proof outer frame 3 and its stable ability to block ink splashes from the roller body 1, preventing component wear due to friction.

[0032] The roller body 1 has an intaglio printing cavity 13 on its surface, and an intaglio printing layer 14 is provided in the intaglio printing cavity 13 at the same horizontal plane as the roller body surface. The intaglio printing cavity 13 is located on the surface of the roller body 1, and the intaglio printing layer 14 is located in the intaglio printing cavity 13 and at the same horizontal plane as the roller body 1 surface. The function of the intaglio printing cavity 13 is to store ink. During the rotation of the roller body 1, the ink in the intaglio printing cavity 13 is transferred to the printing material to achieve printing. The intaglio printing layer 14 ensures that the ink can be uniformly and effectively adhered to the surface of the roller body 1 and stably transferred to the printing material. The reasonable structural design makes the ink bearing and transfer process on the surface of the roller body 1 more stable, reducing abnormal ink splashing caused by unreasonable surface structure of the roller body 1, which plays a key role in ensuring printing quality. After the roller body 1 is fixed to the end of the ink tank 4 by the anti-splash frame 3 and the mounting connecting support plate 5, the bottom end of the roller body 1 is immersed in the ink in the ink tank 4.

[0033] Specifically, during use, when the external drive device rotates the multi-stage shaft 2, causing the roller 1 to rotate at high speed, the ink adhering to the surface of the roller 1 tends to splash due to centrifugal force. At this time, the anti-splash frame 3 set on the outside of the roller 1 plays a primary protective role. The ink baffles 7 at the front and rear of its upper end have an arc surface at one end that fits tightly against the front and rear surfaces of the roller 1 near the top, effectively covering the upward splashing path of the ink. During the rotation of the roller 1, the arc surface design guides the splashed ink to slide down along the baffle surface, preventing it from overflowing into the equipment and working environment, thus achieving initial blocking of the splashed ink. The ink that falls after being blocked by the ink baffle 7 will land on the receiving plate 8 extending inward from the bottom of the anti-splash frame 3. The inclined discharge groove 9 at the end of the receiving plate 8 allows the collected ink to automatically flow back into the ink tank 4. This design achieves effective recycling of splashed ink, avoiding disorderly accumulation of ink inside the equipment, saving ink resources, maintaining the cleanliness of the equipment interior, and reducing the risk of equipment failure caused by ink accumulation.

[0034] The mounting and connecting support plate 5 securely fixes the anti-splash frame 3 to both sides of the ink tank 4 via the mounting locking holes 10 and locking bolts. This stable connection ensures the anti-splash frame 3 remains stable even when the roller 1 vibrates at high speed, preventing loosening from affecting the ink-blocking effect. Furthermore, fixed bearings 12 are embedded in the center of both sides of the anti-splash frame 3, with their inner rings fixed to the surface of the multi-stage shaft 2. This allows relative rotation between the anti-splash frame 3 and the multi-stage shaft 2, reducing frictional resistance during rotation and further ensuring the anti-splash frame 3 stably blocks ink from the roller 1, providing structural stability for the continuous and effective operation of the entire anti-splash system. An upwardly inclined rubber scraper 11 is mounted on one side wall of the inner side of the anti-splash frame 3, with one end of its inclined surface adhering to the bottom side of one side of the roller 1. When the roller 1 rotates, the rubber scraper 11 can scrape off the excess ink adhering to the surface of the roller 1 and distribute it evenly, preventing a large amount of ink from flying when the roller 1 rotates at high speed due to excessive ink. At the same time, it helps to improve the printing quality, making the ink layer thickness of the printed product consistent and the color more uniform.

[0035] The gravure printing cavity 13 on the surface of the roller body 1 and the gravure printing layer 14 on the same horizontal plane ensure that the ink can effectively adhere and stably transfer to the printing material. The reasonable structural design makes the ink bearing and transfer process on the surface of the roller body 1 more stable, reducing abnormal ink splashing caused by unreasonable surface structure of the roller body 1. Furthermore, after the roller body 1 is fixed to the end of the ink tank 4 by the anti-splash frame 3 and the mounting connecting plate 5, its bottom end is immersed in the ink in the ink tank 4 to stably obtain ink. At the same time, with the cooperation of the anti-splash frame 3 and the ink baffle 7, even if the roller body 1 rotates in the ink and carries ink, the above-mentioned anti-splashing mechanism can effectively prevent ink splashing.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gravure printing roller for preventing ink splatter, characterized in that, Include: Roller body (1), the surface center point of both ends of the roller body (1) is provided with a multi-stage shaft (2) which is rotated by external driving equipment and is connected to transmission, the splash-proof outer frame (3) which does not follow the roller body (1) and blocks printing ink is arranged on the outer side of the roller body (1) by bearing sleeve on the multi-stage shaft (2). The ink tank (4) is provided with mounting connection support plate (5) which is fixedly installed on both sides of the bottom of the splash-proof outer frame (3), and the ink baffle (7) which makes the roller body (1) rotate and blocks the ink thrown out is arranged on the upper end of the splash-proof outer frame (3).

2. An inking roller according to claim 1, wherein: One end surface of the ink baffle (7) is arc surface, and the ink baffle (7) arc surface one side is attached to the surface of the roller body (1) before and after and close to the upper side.

3. The fountain roller according to claim 1, wherein: The splash-proof outer frame (3) is provided with a material receiving plate (8) which is arranged inwardly on the bottom of the inner side of the splash-proof outer frame (3) and receives the falling ink, and the material receiving plate (8) is provided with a discharge groove (9) which is arranged on the end of the material receiving plate (8) and is inclined.

4. The fountain roller according to claim 1, wherein: The mounting connection support plate (5) is provided with mounting lock hole (10) which is arranged through the mounting connection support plate (5), and the mounting lock hole (10) is provided with locking bolt which is arranged in the mounting lock hole (10) and makes the mounting connection support plate (5) fixed on the left and right sides of the upper end of the ink tank (4).

5. The fountain roller according to claim 1, wherein: The splash-proof outer frame (3) is provided with rubber scraper (11) which is arranged on the inner side wall of the splash-proof outer frame (3) and is inclined upward, and the rubber scraper (11) is attached to one side of the bottom side of the roller body (1) and is used for uniformly scraping the ink.

6. The ink-jet preventing gravure roller according to claim 1, wherein: The splash-proof outer frame (3) is provided with bearing (12) which is embedded and fixed on both sides of the center position of the splash-proof outer frame (3), and the inner ring of the bearing (12) is fixed on the surface of the multi-stage shaft (2).

7. The fountain roller according to claim 1, wherein: The roller body (1) is provided with recessed printing cavity (13), and the recessed printing cavity (13) is provided with recessed printing layer (14) which is arranged on the same horizontal plane of the surface of the roller body.

8. The fountain roller according to claim 1, wherein: The roller body (1) is fixed on the end of the ink tank (4) by the splash-proof outer frame (3) and the mounting connection support plate (5), so that the bottom end of the roller body (1) is immersed in the ink in the ink tank (4).

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