Novel white ink circulating system

Abstract

The utility model discloses a novel white ink circulation system which comprises an ink barrel, an ink bag and a printing head, the ink barrel is connected with the ink bag, the ink bag is connected with the printing head, a printing protruding block is fixedly installed at the bottom end of the printing head, a spraying head is fixedly arranged on the printing protruding block, and the printing protruding block is fixedly connected with the printing head. A plugging block is detachably connected to the bottom end of the printing head, a plugging assembly is arranged on the plugging block and comprises a groove formed in the plugging block, a plugging groove is formed in the bottom end of the groove, a plugging plate is slidably connected into the plugging groove, a plugging rubber ring is fixedly connected to the plugging plate, and the plugging rubber ring is fixedly connected to the plugging plate. The blocking plate slides in the blocking groove, so that the blocking rubber ring continuously gets close to the spray head, when the blocking rubber ring makes contact with the printing protruding block, a closed space is formed between the blocking rubber ring and the printing protruding block, and the situation that dust and small particles in air are adsorbed to the spray head, and consequently the spray head is blocked is avoided.

Description

Technical Field

[0001] The utility model relates to a white ink circulation system, and more specifically, to a novel white ink circulation system. Background Art

[0002] With the progress of society, the printing industry has also developed rapidly. Due to the drawbacks of traditional printing technologies, such as slow printing speed, non-environmental and highly polluting inks, and single printing materials that cannot be applied to different materials, they can no longer meet the current market needs. Along with the continuous development of computer technology, a high-tech product integrating machinery, computer, and electronic information technologies has gradually emerged: digital printers, commonly known as UV printers, also known as flatbed printers, which are one of the most important parts of the printing industry. Compared with traditional printing technologies, digital printing has many advantages, such as a variety of printing materials, wide application fields, such as paper, wall tiles, wooden boards, clothing, etc., can print a relatively large size range at one time, and high printing accuracy. In addition, the inks used are green and environmentally friendly, with the characteristics of instant rapid curing, no volatile organic solvents VOC, and less pollution. Due to its many advantages, it has been applied in more and more fields.

[0003] Currently, for existing white ink circulation systems, the nozzle is usually blocked. The phenomenon of nozzle blockage is mainly caused by various factors. First, due to the action of gravity during storage, the pigments and additives in the white ink tend to settle naturally, resulting in nozzle blockage. Second, if the printing equipment is not used for a long time, the water in the white ink in the nozzle will evaporate, leaving solid components, further exacerbating the nozzle blockage. In addition, the static electricity in the ink may also adsorb dust and fine particles in the air, and the accumulation of these impurities on the nozzle will also cause blockage.

[0004] For the problems in the related art, no effective solution has been proposed yet. Summary of the Utility Model

[0005] In view of the problems in the related art, the present utility model provides a novel white ink circulation system to overcome the above-mentioned technical problems existing in the related art.

[0006] Therefore, the specific technical solution adopted by the present utility model is as follows:

[0007] A novel white ink circulation system includes an ink bucket, an ink sac and a print head. The ink sac is connected to the ink bucket through a two-way solenoid valve. A first filter is provided between one end of the two-way solenoid valve and the ink bucket. A peristaltic pump is provided between the first filter and the two-way solenoid valve. A second filter is provided between the other end of the two-way solenoid valve and the ink bucket. The ink sac is connected to the print head. A printing bump is fixedly installed on the bottom end of the print head. A nozzle is fixedly provided on the printing bump. A blocking block is detachably connected to the bottom end of the print head. A blocking assembly is provided on the blocking block. The blocking assembly includes a groove opened on the blocking block. A blocking groove is opened on the bottom end of the groove. A blocking plate is slidably connected in the blocking groove. A blocking rubber ring is fixedly connected to the blocking plate. A humidifying assembly is provided in the blocking plate. A fastening screw rod is threadedly connected to the bottom end of the blocking block. The fastening screw rod extends into the blocking groove and is rotatably connected to the blocking plate through a connecting member.

[0008] Further, in order to prevent the evaporation of moisture in the white ink in the nozzle, the humidifying assembly includes a cavity opened on the blocking plate. A TEC module is fixedly installed at the center of the bottom end inside the cavity. A water storage tank is fixedly installed on the TEC module. An atomizer is fixedly installed on the water storage tank. A first water injection pipe is fixedly connected to the bottom end of the water storage tank. The first water injection pipe extends outside the blocking plate. One end of the bottom end of the blocking block, which is far away from the fastening screw rod, is fixedly connected to a second water injection pipe. The second water injection pipe extends into the blocking groove and is connected to the first water injection pipe through a telescopic hose.

[0009] Further, in order to convey the mist to the nozzle, through holes are equidistantly opened on the blocking plate. The through holes communicate with the cavity.

[0010] Further, in order to make the blocking block match the print head, the printing bump is adapted to the groove.

[0011] Further, in order to make the blocking block be clamped on the print head, T-shaped grooves are opened at both ends of the bottom end of the print head, which are far away from the printing bump. T-shaped blocks are fixedly connected to both ends of the blocking block, which are far away from the groove. The T-shaped blocks are adapted to the T-shaped grooves.

[0012] Further, in order to make the blocking plate slide stably in the blocking groove, sliding grooves are opened at both ends of the inner surface of the blocking groove. Sliding blocks are fixedly connected to both ends of the outer surface of the blocking plate. The sliding blocks are slidably connected to the sliding grooves.

[0013] Further, in order to facilitate the rotation of the fastening screw rod, a turntable is fixedly connected to one end of the fastening screw rod.

[0014] The beneficial effects of the present utility model are:

[0015] 1. The white ink in the ink bucket flows into the peristaltic pump. The peristaltic pump regularly squeezes and releases the pump tube through rollers, forming a cycle of vacuum adsorption and extrusion discharge, thereby promoting the flow of the fluid in the tube and making the white ink flow to the two-way solenoid valve. When the two-way solenoid valve works, the lower 4 branches are automatically closed. At this time, the white ink circulates, and the white ink inside the ink sac and at the print head does not circulate. The fluid is in an automatic cut-off state, greatly enhancing the circulation effect of the white ink circulation inside the ink bucket and the ink tube, enabling the white ink to achieve a true circulation in the white ink circulation system, avoiding the settlement of the white ink in the white ink circulation system and the situation of clogging the nozzle. At the same time, preventing the ink in the ink sac and the print head from flowing back. The first filter and the second filter not only have a filtering function but also can reduce or eliminate the bubbles in the white ink, helping to improve the printing quality and the circulation quality of the white ink circulation, reducing the risk of nozzle damage, and improving the printing smoothness.

[0016] 2. By clamping the T-shaped block on the plugging block into the T-shaped groove on the print head and rotating the turntable, the tightening screw rod rotates. The rotation of the tightening screw rod makes the plugging plate slide in the plugging groove, and the plugging rubber ring continuously approaches the nozzle. When the plugging rubber ring contacts the printing convex block, a sealed space is formed between the plugging rubber ring and the printing convex block. On the one hand, it improves the stability between the plugging block and the print head, and on the other hand, it plugs the nozzle on the print head, avoiding the situation that dust and tiny particles in the air are adsorbed on the nozzle, resulting in nozzle clogging.

[0017] 3. When the plugging rubber ring contacts the printing convex block, a sealed space is formed between the plugging rubber ring and the printing convex block. At this time, the TEC module works to cool the water in the water storage tank. The cooled water is sprayed into the cavity under the action of the atomizer. The cold mist in the cavity flows into the sealed space through the through hole and humidifies the humidity of the white ink on the nozzle, effectively avoiding the situation that the water in the white ink in the nozzle evaporates and clogs the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of a novel white ink circulation system according to an embodiment of the present invention;

[0020] Figure 2 is a schematic structural diagram of the print head in a novel white ink circulation system according to an embodiment of the present invention

[0021] Figure 3 It is a cross-sectional view of a plugging block in a new type of white ink circulation system according to an embodiment of the present invention;

[0022] Figure 4 It is Figure 3 The enlarged view at position A in

[0023] Figure 5 It is a cross-sectional view of a plugging plate in a new type of white ink circulation system according to an embodiment of the present invention;

[0024] Figure 6 It is Figure 5 The enlarged view at position B in

[0025] In the figure:

[0026] 1. Ink bucket; 2. First filter; 3. Peristaltic pump; 4. Two-way solenoid valve; 5. Second filter; 6. Ink sac; 7. Print head; 8. Printing bump; 9. Nozzle; 10. T-shaped groove; 11. Plugging block; 12. Groove; 13. T-shaped block; 14. Plugging groove; 15. Sliding groove; 16. Plugging plate; 17. Sliding block; 18. Connector; 19. Tightening screw rod; 20. Turntable; 21. Plugging rubber ring; 22. Cavity; 23. Through hole; 24. Water storage tank; 25. Atomizer; 26. First water injection pipe; 27. Telescopic hose; 28. Second water injection pipe; 29. TEC module. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] According to an embodiment of the present invention, a new type of white ink circulation system is provided.

[0029] Embodiment 1;

[0030] As Figure 1 and Figure 2As shown in the figure, a new white ink circulation system according to an embodiment of the present utility model includes an ink bucket 1, an ink sac 6 and a print head 7. The ink sac 6 is connected to the ink bucket 1 through a two-way solenoid valve 4. A first filter 2 is provided between one end of the two-way solenoid valve 4 and the ink bucket 1. A peristaltic pump 3 is provided between the first filter 2 and the two-way solenoid valve 4. A second filter 5 is provided between the other end of the two-way solenoid valve 4 and the ink bucket 1. Both the first filter 2 and the second filter 5 are Cobetter defoaming filters. The ink sac 6 is connected to the print head 7. The ink bucket 1, the first filter 2, the peristaltic pump 3, the two-way solenoid valve 4, the second filter 5, the ink sac 6 and the print head 7 are connected through ink pipes. A printing bump 8 is fixedly installed on the bottom end of the print head 7. A nozzle 9 is fixedly provided on the printing bump 8. A plugging block 11 is detachably connected to the bottom end of the print head 7. T-shaped grooves 10 are opened at both ends of the bottom end of the print head 7 away from the printing bump 8. T-shaped blocks 13 are symmetrically welded on the plugging block 11. The T-shaped blocks 13 are adapted to the T-shaped grooves 10. A plugging assembly is provided on the plugging block 11. The white ink in the ink bucket 1 flows into the peristaltic pump 3. The peristaltic pump 3 regularly squeezes and releases the pump pipe through rollers, forming a cycle of vacuum adsorption and extrusion exclusion, thereby promoting the flow of the fluid in the pipe and making the white ink flow to the two-way solenoid valve 4. The two-way solenoid valve 4 works, and the lower 4 branches are automatically closed. At this time, the white ink circulates, and the white ink inside the ink sac 6 and at the print head 7 does not circulate, and the fluid is in an automatic cut-off state, greatly enhancing the circulation effect of the white ink circulation inside the ink bucket 1 and in the ink pipes, enabling the white ink to achieve a true circulation in the white ink circulation system, avoiding the situation of the white ink settling in the white ink circulation system and blocking the nozzle 9. At the same time, preventing the ink in the ink sac 6 and the print head 7 from flowing back. The first filter 2 and the second filter 5 not only have a filtering function, but also can reduce or eliminate the bubbles in the white ink, which helps to improve the printing quality and the circulation quality of the white ink circulation, while reducing the risk of damage to the nozzle 9 and improving the printing smoothness.

[0031] Embodiment 2;

[0032] Please refer to Figures 1 - 4, the plugging assembly includes a groove 12 formed in the plugging block 11. The groove 12 is adapted to the printing bump 8. A plugging groove 14 is formed at the bottom end of the groove 12. A plugging plate 16 is slidably connected in the plugging groove 14. In order to enable the plugging plate 16 to slide stably in the plugging groove 14, sliding grooves 15 are formed at both ends of the inner surface of the plugging groove 14. Sliding blocks 17 are fixedly connected to both ends of the outer surface of the plugging plate 16. The sliding blocks 17 are slidably connected to the sliding grooves 15. A plugging rubber ring 21 is fixedly connected to the plugging plate 16. A humidifying assembly is provided in the plugging plate 16. A fastening screw rod 19 is threadedly connected to the bottom end of the plugging block 11. The fastening screw rod 19 extends into the plugging groove 14 and is rotatably connected to the plugging plate 16 through a connecting member 18. In order to facilitate the rotation of the fastening screw rod 19, a turntable 20 is fixedly connected to one end of the fastening screw rod 19. By clamping the T-shaped block 13 on the plugging block 11 into the T-shaped groove 10 on the print head 7 and rotating the turntable 20, the fastening screw rod 19 rotates. The rotation of the fastening screw rod 19 causes the plugging plate 16 to slide in the plugging groove 14 and makes the plugging rubber ring 21 continuously approach the nozzle 9. When the plugging rubber ring 21 contacts the printing bump 8, a sealed space is formed between the plugging rubber ring 21 and the printing bump 8. On the one hand, the stability between the plugging block 11 and the print head 7 is improved. On the other hand, the nozzle 9 on the print head 7 is plugged to prevent dust and tiny particles in the air from adsorbing on the nozzle 9, resulting in the blockage of the nozzle 9.

[0033] Embodiment Three;

[0034] Please refer to Figures 1 - 6 , the humidifying assembly includes a cavity 22 formed in the plugging plate 16. A TEC module 29 is fixedly installed at the center of the bottom end inside the cavity 22. The TEC module 29 is a semiconductor cooler. A water storage tank 24 is fixedly installed on the TEC module 29. The outer shell of the water storage tank 24 is made of a heat-conducting material. An atomizer 25 is fixedly installed on the water storage tank 24. A first water injection pipe 26 is fixedly connected to the bottom end of the water storage tank 24. The first water injection pipe 26 extends outside the plugging plate 16. A second water injection pipe 28 is fixedly connected to the end of the bottom end of the plugging block 11 away from the fastening screw rod 19. The second water injection pipe 28 extends into the plugging groove 14 and is connected to the first water injection pipe 26 through a telescopic hose 27. The telescopic hose 27 has a certain extensibility. Through holes 23 are equidistantly formed in the plugging plate 16. The through holes 23 communicate with the cavity 22. When the plugging rubber ring 21 contacts the printing bump 8, a sealed space is formed between the plugging rubber ring 21 and the printing bump 8. At this time, the TEC module 29 works to cool the water in the water storage tank 24. The cooled water is sprayed into the cavity 22 under the action of the atomizer 25. The cold mist in the cavity 22 flows into the sealed space through the through holes 23 and humidifies the humidity of the white ink on the nozzle 9, effectively preventing the evaporation of the water in the white ink in the nozzle 9 and the blockage of the nozzle 9.

[0035] To facilitate the understanding of the above technical solutions of the present utility model, the working principle or operation mode of the present utility model in the actual process will be described in detail below.

[0036] In actual application, to avoid the blockage of the nozzle 9, first, the white ink in the ink bucket 1 flows into the peristaltic pump 3. The peristaltic pump 3 regularly squeezes and releases the pump tube through rollers, forming a cycle of vacuum adsorption and extrusion discharge, thereby promoting the flow of the fluid in the tube and making the white ink flow to the two-way solenoid valve 4. The two-way solenoid valve 4 works, and the lower 4 branches are automatically closed. At this time, the white ink circulates, and the white ink inside the ink sac 6 and at the print head 7 does not circulate, and the fluid is in an automatically cut-off state, greatly enhancing the circulation effect of the white ink circulation inside the ink bucket 1 and in the ink tube, enabling the white ink to achieve a true circulation in the white ink circulation system, avoiding the settlement of the white ink in the white ink circulation system and the blockage of the nozzle 9. At the same time, the ink in the ink sac 6 and the print head 7 does not flow back. Secondly, the T-shaped block 13 on the plugging block 11 is clamped in the T-shaped groove 10 on the print head 7, and the turntable 20 is rotated to make the fastening screw rod 19 rotate. The rotation of the fastening screw rod 19 makes the plugging plate 16 slide in the plugging groove 14, and the plugging rubber ring 21 continuously approaches the nozzle 9. When the plugging rubber ring 21 contacts the printing convex block 8, a sealed space is formed between the plugging rubber ring 21 and the printing convex block 8. On the one hand, the stability between the plugging block 11 and the print head 7 is improved, and on the other hand, the nozzle 9 on the print head 7 is plugged to avoid the situation where dust and tiny particles in the air are adsorbed on the nozzle 9, resulting in the blockage of the nozzle 9. Then, when the plugging rubber ring 21 contacts the printing convex block 8, a sealed space is formed between the plugging rubber ring 21 and the printing convex block 8. At this time, the TEC module 29 works to cool the water in the water storage tank 24. The cooled water is sprayed into the cavity 22 under the action of the atomizer 25. The cold mist in the cavity 22 flows into the sealed space through the through hole 23 and humidifies the humidity of the white ink on the nozzle 9, effectively avoiding the evaporation of the water in the white ink in the nozzle 9 and the blockage of the nozzle 9.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A new white ink circulation system, comprising an ink bucket (1), an ink sac (6) and a print head (7), characterized in that, The ink sac (6) is connected to the ink bucket (1) through a two-way solenoid valve (4). A first filter (2) is provided between one end of the two-way solenoid valve (4) and the ink bucket (1). A peristaltic pump (3) is provided between the first filter (2) and the two-way solenoid valve (4). A second filter (5) is provided between the other end of the two-way solenoid valve (4) and the ink bucket (1). The ink sac (6) is connected to the print head (7). A printing bump (8) is fixedly installed on the bottom end of the print head (7). A nozzle (9) is fixedly provided on the printing bump (8). A plugging block (11) is detachably connected to the bottom end of the print head (7). A plugging assembly is provided on the plugging block (11). The plugging assembly includes a groove (12) opened on the plugging block (11). A plugging groove (14) is opened at the bottom end of the groove (12). A plugging plate (16) is slidably connected in the plugging groove (14). A plugging rubber ring (21) is fixedly connected to the plugging plate (16). A humidifying assembly is provided in the plugging plate (16). A fastening screw rod (19) is threadedly connected to the bottom end of the plugging block (11). The fastening screw rod (19) extends into the plugging groove (14) and is rotatably connected to the plugging plate (16) through a connecting member (18).

2. The novel white ink circulation system according to claim 1, wherein, The humidifying assembly includes a cavity (22) opened on the plugging plate (16). A TEC module (29) is fixedly installed at the center of the inner bottom end of the cavity (22). A water storage tank (24) is fixedly installed on the TEC module (29). An atomizer (25) is fixedly installed on the water storage tank (24). A first water injection pipe (26) is fixedly connected to the bottom end of the water storage tank (24). The first water injection pipe (26) extends outside the plugging plate (16). A second water injection pipe (28) is fixedly connected to the bottom end of the plugging block (11) at the end far from the fastening screw rod (19). The second water injection pipe (28) extends into the plugging groove (14) and is connected to the first water injection pipe (26) through a telescopic hose (27).

3. The novel white ink circulation system according to claim 2, characterized in that, Through holes (23) are equidistantly opened on the plugging plate (16). The through holes (23) communicate with the cavity (22).

4. A novel white ink circulation system according to claim 1, characterized in that, The printing bump (8) is adapted to the groove (12).

5. A novel white ink circulation system according to claim 4, characterized in that, T-shaped grooves (10) are opened at both ends of the bottom end of the print head (7) far from the printing bump (8). T-shaped blocks (13) are fixedly connected to both ends of the plugging block (11) far from the groove (12). The T-shaped blocks (13) are adapted to the T-shaped grooves (10).

6. The novel white ink circulation system according to claim 5, characterized in that, Sliding grooves (15) are opened at both ends of the inner surface of the plugging groove (14). Sliding blocks (17) are fixedly connected to both ends of the outer surface of the plugging plate (16). The sliding blocks (17) are slidably connected to the sliding grooves (15).

7. A novel white ink circulation system according to claim 2, characterized in that, A turntable (20) is fixedly connected to one end of the fastening screw rod (19).

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