Printing ink fountain
By designing the defoaming roller and collision assembly in the ink ink tank, bubble elimination in the ink ink tank is solved, and the problem of poor printing effect caused by bubbles generated in the ink tank of the printing device in the prior art is solved, and the quality of the printed materials is improved.
Patent Information
- Application Number
- CN202421549386.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The ink grooves in the existing printing devices are prone to bubbles during the printing process, resulting in poor printing effect and prone to pattern defects.
An ink ink groove is designed, including the ink groove body, a printing roller and a defoaming roller. The defoaming roller vibrates through the rotating shaft and the collision assembly to effectively eliminate air bubbles in the ink.
Through the vibration function of the defoaming roller, the bubbles in the ink are effectively removed, the printing effect is improved, pattern defects are avoided, and the quality of the printed materials is improved.
Smart Images
Figure CN222645611U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printing equipment, in particular to an ink tank. Background Art
[0002] The printing device comprises a printing roller, a transfer roller, an inking roller, and an ink tank. After the ink tank is filled with ink, the inking roller is half-immersed in the ink, so that its top surface contacts the transfer roller, which in turn contacts the printing roller. During use, the printing roller, the intermediate roller, and the inking roller rotate. The inking roller is dipped in ink and then transferred to the intermediate roller. The printed paper passes between the printing roller and the intermediate roller, and the printed paper is printed. However, the ink in the ink tank often generates a large number of bubbles during the printing process. Existing ink tanks do not have a defoaming device, and the ink is used directly for printing. Products printed with such a printing device suffer from poor printing quality and are prone to pattern defects. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an ink tank with a defoaming function.
[0004] In order to solve the above technical problems, the utility model provides an ink tank, comprising an ink tank body and a printing roller rotatably arranged inside the ink tank body, a defoaming roller is also rotatably installed inside the ink tank body, the defoaming roller is arranged parallel to the printing roller, the defoaming roller comprises a rotating shaft and a roller body movably sleeved outside the rotating shaft, the two ends of the rotating shaft are rotatably connected to the two sides of the ink tank body, a driving device for driving the rotating shaft to rotate is provided on one side of the ink tank body, the roller body is a hollow structure, and a collision assembly is provided in the roller body, and when the rotating shaft rotates, the collision assembly can cause the roller body to vibrate.
[0005] Furthermore, the collision assembly includes a plurality of collision rods arranged on the rotating shaft at intervals along the length direction of the rotating shaft and a collision block arranged on the inner wall surface of the roller body, the length direction of each collision rod is perpendicular to the length direction of the rotating shaft, and the end of each collision rod away from the rotating shaft has a predetermined distance from the inner wall surface of the roller body; the collision block is protruded at a position on the inner wall surface of the roller body corresponding to the collision rod, and the protruding height of the collision block is greater than the predetermined distance; during the rotation of the rotating shaft, the collision rod collides with the collision block, causing the roller body to displace in the radial direction and vibrate.
[0006] Furthermore, one end of the collision rod away from the rotating shaft is a curved surface convex toward the inner wall of the roller body, and the side of the collision block facing the collision rod is a curved surface convex toward the collision rod.
[0007] Furthermore, a first through hole and a second through hole for the rotating shaft to pass through are provided at both ends of the roller body, and the diameters of the first through hole and the second through hole are both larger than the diameter of the rotating shaft and smaller than the diameter of the roller body.
[0008] Furthermore, a first sealing ring and a second sealing ring are respectively provided at positions at both ends of the rotating shaft corresponding to the first through hole and the second through hole. The first sealing ring and the second sealing ring are fixedly sleeved outside the rotating shaft, and the outer sides of the first sealing ring and the second sealing ring respectively conflict with the inner walls of the two end surfaces of the roller body.
[0009] Furthermore, a first mounting plate and a second mounting plate are respectively provided at both ends of the ink tank body, and the first mounting plate and the second mounting plate are both arranged in the two end plates of the ink tank body. The first mounting plate and the second mounting plate are enclosed with the two side plates and the bottom plate of the ink tank body to form an inner groove for installing ink, and a first mounting hole and a second mounting hole are respectively formed on the first mounting plate and the second mounting plate, and the two ends of the rotating shaft are respectively passed through the first mounting hole and the second mounting hole.
[0010] Furthermore, a limit block protruding from the end surface of the roller body is provided at one end of the roller body, the limit block is located on one side of the rotating shaft and the limit block and the collision block are on the same horizontal line; a limit groove corresponding to the limit block is provided on the second mounting plate, the limit block is movably connected to the limit groove, and when the roller body moves, the limit block can move back and forth along the limit groove.
[0011] Furthermore, the end face of the roller body away from the limit block is a roller cover, and the roller cover is detachably connected to the roller body. One end of the roller body is provided with an internal thread, and the outer side surface of the roller cover is provided with an external thread adapted to the internal thread, and the limit block is threadably connected to the roller body.
[0012] Furthermore, a bayonet for fixing the ink supply tube is provided on the side plate of the ink tank body close to the defoaming roller, and a return tube connected to the ink cylinder is provided at the bottom of the ink tank body.
[0013] Furthermore, an ink baffle for collecting ink toward the defoaming roller and the printing roller is provided on one side of the ink tank body close to the defoaming roller, and a slot for the ink supply tube to pass through is provided at the position of the ink baffle corresponding to the bayonet.
[0014] The utility model discloses an ink tank. When printing, ink is first added through an ink supply tube, and the ink is collected toward a printing roller through an ink baffle. Therefore, the amount of ink required for the printing roller to reach a minimum ink depth is reduced, and ink is saved more. During the printing process, a driving device is turned on to drive a rotating shaft to rotate. During the rotation of the rotating shaft, a collision rod collides with a collision block. Since the length of the collision rod is constant, the roller body can be displaced and vibrated, and bubbles generated in the ink can be eliminated under the action of the vibration. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 This is a schematic diagram of the internal structure of the ink tank body of the present invention.
[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the roller body in the utility model.
[0018] Figure 4 This is a schematic diagram of the structure of the rotating shaft of the utility model
[0019] Figure 5 This is a schematic diagram of the collision between the collision rod and the collision plate in the present invention.
[0020] Figure 6 It is a schematic diagram of the installation structure of the end of the defoaming roller.
[0021] Figure 7 for Figure 6 Schematic diagram of the enlarged structure at point A in the middle.
[0022] Figure 8 Schematic diagram of the explosion structure of the defoaming roller in the utility model.
[0023] The numbers in the accompanying drawings mean: 1. Ink tank body; 11. First mounting plate; 12. Second mounting plate; 13. Bayonet; 14. Return pipe; 15. Ink stopper; 151. Bayonet; 2. Printing roller; 3. Defoaming roller; 31. Rotating shaft; 311. First sealing ring; 312. Second sealing ring; 32. Roller body; 321. First through hole; 322. Second through hole 322; 323. Limiting block; 324. Roller body cover; 3241. External thread; 325. Internal thread; 4. Driving device; 5. Collision assembly; 51. Collision rod; 52. Collision block. DETAILED DESCRIPTION
[0024] The present invention will be further described below with reference to the accompanying drawings:
[0025] See Figure 1The utility model provides an ink tank, comprising an ink tank body 1 and a printing roller 2 rotatably arranged inside the ink tank body 1. A defoaming roller 3 is also rotatably installed inside the ink tank body 1. The defoaming roller 3 is arranged parallel to the printing roller 2. The defoaming roller 3 comprises a rotating shaft 31 and a roller body 32 movably sleeved outside the rotating shaft 31. Both ends of the rotating shaft 31 are rotatably connected to both sides of the ink tank body 1. A driving device 4 for driving the rotating shaft 31 to rotate is provided on one side of the ink tank body 1. The roller body 32 is a hollow structure. A collision component 5 is provided in the roller body 32. When the rotating shaft 31 rotates, the collision component 5 can make the roller body 32 vibrate.
[0026] Please continue to see Figure 2During use, ink is first added to the ink tank. A latch 13 is provided on the side of the ink tank body 1 near the defoaming roller 3 to secure the ink supply tube. A return tube 14, connected to the ink reservoir, is located at the bottom of the ink tank body 1. The ink supply tube is secured with latch 13 to allow ink to be added to the ink tank body 1. When the printing roller 2 is halfway immersed in ink, the return tube 14 is opened, allowing the ink in the ink tank body 1 to flow back into the ink reservoir. Meanwhile, the ink supply tube continues to add ink to the ink tank body 1, ensuring that the ink in the ink tank body 1 remains fluid, preventing the formation of film. Furthermore, an ink baffle 15 is provided on the side of the ink tank body 1 near the defoaming roller 3 to direct the ink toward the defoaming roller 3 and the printing roller 2. The length of the ink baffle 15 matches that of the ink tank body 1, and its bottom and side surfaces mate with the bottom and side surfaces of the ink tank body 1, respectively. In this embodiment, the ink baffle 15 is a triangular prism with a right-angled triangular cross-section. The right-angled surfaces of the ink baffle 15 mate with the bottom and side surfaces of the ink tank body 1, respectively, and the inclined surface of the ink baffle 15 faces one side of the defoaming roller 3. The provision of the ink baffle 15 reduces the amount of ink required to reach the minimum ink depth of the printing roller 2, thus conserving ink. Because the ink baffle 15 and the latch 13 are located on the same side of the ink baffle 15, a slot 151 for the ink supply tube to pass through is provided at the location of the ink baffle 15 corresponding to the latch 13. After the ink supply tube is secured by the latch 13, the outlet end of the ink supply tube is placed in the slot 151, which reduces the ink outlet height of the ink supply tube and prevents ink splashing. Because the rotating shaft 31 is rotatably connected to both ends of the ink tank body 1, a first mounting plate 11 and a second mounting plate 12 are respectively provided at both ends of the ink tank body 1 to prevent ink from leaking out. The first mounting plate 11 and the second mounting plate 12 are both located within the end plates of the ink tank body 1. The first mounting plate 11 and the second mounting plate 12, together with the two side plates and the bottom plate of the ink tank body 1, form an inner groove for storing ink. The first mounting plate 11 and the second mounting plate 12 are respectively formed with a first mounting hole (not shown) and a second mounting hole (not shown). The ends of the rotating shaft 31 are respectively inserted into the first mounting hole and the second mounting hole. By arranging the first mounting plate 11 and the second mounting plate 12 within the ink tank body 1, even if ink leaks through the first mounting hole and the second mounting hole, the ink can be prevented from leaking out of the ink tank body 1, thereby preventing contamination of the external environment. After the ink is added, the driving device 4 is started to drive the rotating shaft 31 to rotate. In this embodiment, the driving device 4 is a driving motor. Specifically, the output end of the driving device 4 is fixedly connected to one end of the rotating shaft 31.
[0027] Please continue to see Figure 3 as well as Figure 4In this embodiment, the roller body 32 is movably mounted outside the rotating shaft 31. Therefore, a first through-hole 321 and a second through-hole 322 are provided at each end of the roller body 32, through which the rotating shaft 31 passes. The diameters of the first through-hole 321 and the second through-hole 322 are both larger than the diameter of the rotating shaft 31 and smaller than the diameter of the roller body 32. When the collision assembly 5 causes the roller body 32 to vibrate, the first through-hole 321 and the second through-hole 322 are larger than the diameter of the rotating shaft 31, causing the roller body 32 to displace and vibrate. Because the diameters of the first through-hole 321 and the second through-hole 322 are larger than the diameter of the rotating shaft 31, a first sealing ring 311 and a second sealing ring 312 are provided at each end of the rotating shaft 31, corresponding to the first through-hole 321 and the second through-hole 322. The first and second sealing rings 311, 312 are fixedly mounted on the rotating shaft 31. The outer sides of the first and second sealing rings 311, 312 respectively contact the inner walls of the two end surfaces of the roller body 32. It should be noted that the diameters of the first and second sealing rings 311, 312 are both smaller than the diameter of the roller body 32. The first and second sealing rings 311, 312 block the first and second through holes 321, 322, preventing ink from flowing into the roller body 32. In this embodiment, the first and second sealing rings 311, 312 are both made of rubber. The flexibility of rubber allows the first and second sealing rings 311, 312 to fit more tightly against the inner walls of the roller body 32, improving leak prevention. Designing the diameters of the first and second sealing rings 311, 312 to be smaller than the diameter of the roller body 32 ensures that the first and second sealing rings 311, 312 do not interfere with the movement of the roller body 32.
[0028] Please continue to see Figure 5 、 Figure 6 as well as Figure 7To enable the roller body 32 to vibrate when the rotating shaft 31 rotates, in this embodiment, the collision assembly 5 includes a plurality of collision rods 51 spaced along the length of the rotating shaft 31 and collision blocks 52 disposed on the inner wall of the roller body 32. The length of each collision rod 51 is perpendicular to the length of the rotating shaft 31, and the end of each collision rod 51 distal from the rotating shaft 31 is spaced a predetermined distance from the inner wall of the roller body 32. The collision blocks 52 protrude from the inner wall of the roller body 32 at positions corresponding to the collision rods 51, with the protrusion height of the collision blocks 52 exceeding the predetermined distance. During rotation of the rotating shaft 31, the collision rods 51 collide with the collision blocks 52, causing the roller body 32 to displace radially and vibrate. Because the protrusion height of the collision blocks 52 is greater than the distance between the end of the collision rod 51 distal from the rotating shaft 31 and the inner wall of the roller body 32, the collision rods 51 are guaranteed to collide with the collision blocks 52 during rotation. When the rotating shaft 31 rotates, the collision rod 51 rotates with the rotating shaft 31. When the collision rod 51 rotates to the collision block 52, since the position of the rotating shaft 31 is fixed, the collision rod 51 hits the collision block 52 and drives the roller body 32 to move away from the collision rod 51, thereby causing the roller body 32 to be displaced and produce a vibration effect. When the collision rod 51 rotates to the opposite side of the collision block 52, since the roller body 32 has been displaced, the collision rod 51 can push the inner wall of the roller body 32 to move the roller body 32 in the opposite direction of the collision block 52. In order to prevent the collision rod 51 from causing the roller body 32 to rotate when it abuts against the collision block 52, a limit block 323 protruding from the end face of the roller body 32 is provided at one end of the roller body 32. The limit block 323 is located on one side of the rotating shaft 31 and is on the same horizontal line as the collision block 52. At the same time, a limiting groove 121 corresponding to the limiting block 323 is provided on the second mounting plate 12, and the limiting block 323 is movably connected to the limiting groove 121. Since the limiting block 323 and the collision block 52 are on the same horizontal line and the limiting block 323 is movably connected to the limiting groove 121, when the collision rod 51 rotates to the collision block 52, the collision rod 51 pushes the roller body 32 to move. At this time, the limiting block 323 moves laterally in the limiting groove 121, thereby preventing the roller body 32 from rotating. When the collision rod 51 rotates toward the side opposite the collision block 52 through the collision block 52, due to the displacement of the roller body 32, the collision rod 51 pushes the inner wall of the roller body 32 to move the roller body 32 to its initial position. At this time, the limiting block 323 moves to its initial position in the limiting groove 121. The cooperation between the limiting block 323 and the limiting groove 121 ensures that the roller body 32 can only move radially to generate vibration and cannot rotate circumferentially.In order to reduce the friction between the collision rod 51 and the collision block 52, the end of the collision rod 51 away from the rotating shaft 31 is designed to be an arc-shaped surface protruding toward the inner wall of the roller body 32, and the side of the collision block 52 facing the collision rod 51 is also designed to be an arc-shaped surface protruding toward the collision rod 51. This design can reduce the friction between the collision rod 51 and the collision block 52 when the collision rod 51 passes through the collision block 52, so that it can pass smoothly.
[0029] Please continue to see Figure 8 Because the impact rod is provided on the rotating shaft 31, the rotating shaft 31 is installed in the roller body 32 for ease of installation. The end surface of the roller body 32 away from the stopper 323 is provided with a roller cover 324, which is detachably connected to the roller body 32. In this embodiment, the roller cover 324 is threadedly connected to the roller body 32. An internal thread 325 is provided on the inner wall of the end of the roller body 32, and an external thread 3241 is provided on the outer surface of the roller cover 324, which matches the internal thread 325. The roller cover 324 and the roller body 32 are threadedly connected via the external thread 3241 and the internal thread 325. During installation, the roller cover 324 is first removed. One end of the rotating shaft 31 is inserted into the roller body 32 from one end, and then the end of the rotating shaft 31 is inserted from the other end of the roller body 32. Finally, the roller cover 324 is passed through the end of the rotating shaft 31 to connect to the roller body 32.
[0030] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. An ink tank, comprising an ink tank body and a printing roller rotatably arranged inside the ink tank body, characterized in that: A defoaming roller is also rotatably installed inside the ink tank body. The defoaming roller is arranged parallel to the printing roller. The defoaming roller includes a rotating shaft and a roller body movably sleeved outside the rotating shaft. Both ends of the rotating shaft are rotatably connected to both sides of the ink tank body. A driving device for driving the rotating shaft to rotate is arranged on one side of the ink tank body. The roller body is a hollow structure. A collision assembly is arranged inside the roller body. When the rotating shaft rotates, the collision assembly can cause the roller body to vibrate.
2. The ink tank according to claim 1, characterized in that: The collision assembly includes a plurality of collision rods arranged on the rotating shaft at intervals along the length direction of the rotating shaft and a collision block arranged on the inner wall surface of the roller body, the length direction of each collision rod is perpendicular to the length direction of the rotating shaft, and the end of each collision rod away from the rotating shaft has a predetermined distance from the inner wall surface of the roller body; the collision block is protruded at a position on the inner wall surface of the roller body corresponding to the collision rod, and the protruding height of the collision block is greater than the predetermined distance; during the rotation of the rotating shaft, the collision rod collides with the collision block, causing the roller body to displace in the radial direction and vibrate.
3. The ink tank according to claim 2, characterized in that: One end of the collision rod away from the rotating shaft is an arc-shaped surface protruding toward the inner wall of the roller body, and the side of the collision block facing the collision rod is an arc-shaped surface protruding toward the collision rod.
4. The ink tank according to claim 2, characterized in that: The two ends of the roller body are provided with a first through hole and a second through hole for the rotating shaft to pass through, and the diameters of the first through hole and the second through hole are both larger than the diameter of the rotating shaft and smaller than the diameter of the roller body.
5. The ink tank according to claim 4, characterized in that: A first sealing ring and a second sealing ring are respectively arranged at positions at both ends of the rotating shaft corresponding to the first through hole and the second through hole. The first sealing ring and the second sealing ring are fixedly sleeved outside the rotating shaft, and the outer sides of the first sealing ring and the second sealing ring are respectively in contact with the inner walls of the two end surfaces of the roller body.
6. The ink tank according to claim 2, characterized in that: A first mounting plate and a second mounting plate are respectively provided at both ends of the ink tank body, and the first mounting plate and the second mounting plate are both arranged in the two end plates of the ink tank body. The first mounting plate and the second mounting plate are combined with the two side plates and the bottom plate of the ink tank body to form an inner groove for installing ink, and a first mounting hole and a second mounting hole are respectively formed on the first mounting plate and the second mounting plate, and the two ends of the rotating shaft are respectively passed through the first mounting hole and the second mounting hole.
7. The ink tank according to claim 6, characterized in that: A limit block protruding from the end surface of the roller body is provided at one end of the roller body, the limit block is located on one side of the rotating shaft and the limit block and the collision block are on the same horizontal line; a limit groove corresponding to the limit block is provided on the second mounting plate, the limit block is movably connected to the limit groove, and when the roller body moves, the limit block can move back and forth along the limit groove.
8. The ink tank according to claim 7, characterized in that: One end face of the roller body away from the limit block is a roller body cover, which is detachably connected to the roller body, one end of the roller body is provided with an internal thread, the outer side face of the roller body cover is provided with an external thread matched with the internal thread, and the limit block is threadably connected to the roller body.
9. The ink tank according to claim 1, characterized in that: A bayonet for fixing the ink supply tube is arranged on the side plate of the ink tank body close to the defoaming roller, and a return tube connected with the ink cylinder is arranged at the bottom of the ink tank body.
10. The ink tank according to claim 9, characterized in that: An ink baffle for collecting ink toward the defoaming roller and the printing roller is arranged on one side of the ink tank body close to the defoaming roller, and a slot for the ink supply tube to pass through is arranged at a position of the ink baffle corresponding to the slot.