Anti-splashing jet printing system

Abstract

The utility model discloses an anti-splashing jet printing system, which comprises a shell, a dilution mechanism and a temperature control mechanism, the upper end in the shell is fixedly connected with a heat preservation compartment, the rear end of the heat preservation compartment is provided with material conveying mechanisms which are symmetrically distributed left and right, the front side face of the shell is fixedly connected with a hose, and the front end of the hose is fixedly connected with a nozzle; the dilution mechanism comprises a dilution box, the dilution box is fixedly connected to the front end of the bottom wall of the heat preservation compartment, a filter is fixedly connected to the lower end of the dilution box, a filter element is arranged in the filter, a second peristaltic pump is fixedly connected to the bottom wall of the shell, and the lower end of the filter communicates with a liquid inlet pipeline of the second peristaltic pump; a liquid outlet pipeline of the second peristaltic pump penetrates through the hose to be communicated with the rear end of the nozzle, and the material conveying mechanism is matched with the dilution box. According to the anti-splashing jet printing system, the viscosity of the ink is controlled by controlling the temperature of the diluted ink, meanwhile, the filter is matched for filtering, and splashing is reduced.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printing system technology, specifically to an anti-splash inkjet printing system. Background Technology

[0002] Inkjet printers are devices that achieve high-precision marking through digital control technology, widely used in industrial production and commercial fields. Their core principle is to precisely spray ink or laser light onto the surface of an object through a printhead, forming text, barcodes, patterns, and other markings. Modern inkjet printers feature non-contact printing, high-speed operation, and automatic code switching, supporting real-time printing of variable data such as QR codes, production dates, and batch numbers. Through IoT technology, the equipment can be connected to smart production lines for remote monitoring and data traceability, significantly improving production efficiency and product traceability capabilities. This should include three sections:

[0003] However, during the use of inkjet printers, the nozzles may splash due to ink viscosity imbalance. When the ink viscosity is too low (<3 cP), the droplets will lack inertia and form satellite droplets due to air resistance after leaving the printhead. When the viscosity is too high (>15 cP), it is easy to cause intermittent jetting loss of control after the nozzle is blocked. At the same time, impurities (>5 μm particles blocking the nozzle) may also cause local jet deflection and scattering. To address this, we propose an anti-splash printing system. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a splash-proof printing system. By controlling the temperature of the diluted ink, the viscosity of the ink can be controlled. At the same time, the system can be filtered to reduce the occurrence of splashing, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a splash-proof printing system, comprising a housing, a dilution mechanism, and a temperature control mechanism;

[0006] Outer shell: An insulated compartment is fixedly connected to the upper part of the shell. A material conveying mechanism is symmetrically distributed on the left and right sides at the rear end of the insulated compartment. A hose is fixedly connected to the front side of the outer shell, and a nozzle is fixedly connected to the front end of the hose.

[0007] Dilution mechanism: It includes a dilution box, the bottom wall of the heat-insulating compartment is fixedly connected to the dilution box, the bottom end of the dilution box is fixedly connected to a filter, the filter is provided with a filter element, the bottom wall of the outer shell is fixedly connected to a peristaltic pump II, the bottom end of the filter is connected to the liquid inlet pipe of the peristaltic pump II, the liquid outlet pipe of the peristaltic pump II passes through a hose and is connected to the rear end of the nozzle, and the material conveying mechanism is set in cooperation with the dilution box.

[0008] Temperature control mechanism: It includes heat dissipation fins and semiconductor cooling chips. The left and right side walls of the heat-insulating compartment are fixedly connected with evenly distributed heat dissipation fins. The side of the heat dissipation fins near the dilution box is fixedly connected with semiconductor cooling chips. The semiconductor cooling chips are respectively attached to the adjacent side walls of the dilution box. By controlling the temperature of the diluted ink, the viscosity of the ink is controlled. At the same time, it works with the filter to reduce splashing.

[0009] Furthermore, it also includes a controller, which is located on the front side of the housing. The input end of the controller is electrically connected to an external power source, and the input ends of the nozzle, peristaltic pump, and semiconductor cooling chip are all electrically connected to the output end of the controller to control electrical appliances.

[0010] Furthermore, the dilution mechanism also includes a stirring shaft, a gear, a motor, and a gear. The top wall of the dilution box is rotatably connected to a stirring shaft symmetrically distributed front and rear. The upper end of each stirring shaft is fixedly fitted with a gear. The upper surface of the dilution box is fixedly connected to a motor. The lower end of the output shaft of the motor is fixedly fitted with a gear. The gear is meshed with both gears. The input end of the motor is electrically connected to the output end of the controller to stir and mix the raw materials.

[0011] Furthermore, the temperature control mechanism also includes air ducts and fans. Air ducts are fixedly connected to both the left and right side walls of the insulated partition. Heat dissipation fins are located inside adjacent air ducts. Fans are fixedly connected to the rear side of each air duct. The input end of each fan is electrically connected to the output end of the controller to facilitate heat dissipation.

[0012] Furthermore, the material conveying mechanism includes a material conveying pipe, a micro flow sensor, a peristaltic pump, a material bucket, a motor, a feed pipe, a stirring shaft, and a liquid level sensor. Two material buckets are fixedly connected to the upper rear side of the insulated compartment. A motor is fixedly connected to the upper surface of each material bucket. A stirring shaft is fixedly connected to the lower end of the output shaft of each motor. A feed pipe is provided on the upper surface of each material bucket. The feed pipe passes through a through hole 1 on the upper surface of the insulated compartment and a through hole 2 at the upper end of the outer shell. A liquid level sensor is fixedly connected to the lower end of the outer arc surface of each material bucket. A peristaltic pump is fixedly connected to the lower end of the insulated compartment, which is symmetrically distributed on both sides. The lower end of each material bucket is connected to the feed pipe of the vertically adjacent peristaltic pump. The discharge pipes of the peristaltic pumps are connected to the upper surface of the dilution box through the material conveying pipe. A micro flow sensor is provided in the middle of the material conveying pipe. The input ends of the motor and the peristaltic pump are electrically connected to the output end of the controller. The micro flow sensor is bidirectionally electrically connected to the controller to realize the conveying of raw materials.

[0013] Furthermore, the bottom wall of the dilution box is fixedly connected with uniformly distributed temperature sensors. The probes of the temperature sensors are all lower than the bottom of the stirring shaft. The temperature sensors are all bidirectionally electrically connected to the controller to detect the internal temperature of the dilution box.

[0014] Furthermore, a second liquid level sensor is fixedly connected to the lower end of the front side of the dilution box. The second liquid level sensor is bidirectionally electrically connected to the controller to detect the ink level inside the dilution box.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This anti-splash printing system has the following advantages:

[0016] 1. Both the dilution box and the ink container are located inside an insulated compartment made of XPS insulation board. The dilution box and the ink container are isolated from the outside environment, which facilitates temperature control. By controlling the forward and reverse energization of the semiconductor cooling chip, the side of the semiconductor cooling chip facing the dilution box is changed to cool or heat, thereby achieving temperature control of the dilution box. Temperature changes will significantly change the ink viscosity. As the temperature rises, the viscosity decreases, and vice versa. By controlling the ink temperature inside the dilution box to remain constant, the ink viscosity is kept stable.

[0017] 2. The ink in the dilution box is filtered through the filter element to remove impurities and prevent ink scattering from the nozzle. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a cross-sectional view of the thermal insulation partition of this utility model;

[0021] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the thermal insulation partition of this utility model.

[0023] In the diagram: 1. Outer shell, 2. Insulated compartment, 3. Dilution mechanism, 31. Dilution box, 32. Stirring shaft I, 33. Gear I, 34. Motor I, 35. Gear II, 4. Conveying mechanism, 41. Conveying pipe I, 42. Miniature flow sensor, 43. Peristaltic pump I, 44. Material bucket, 45. Motor II, 46. Feeding pipe, 47. Stirring shaft II, 48. Liquid level sensor I, 5. Temperature control mechanism, 51. Air duct, 52. Heat sink fins, 53. Semiconductor cooling chip, 54. Fan, 6. Temperature sensor, 7. Filter, 8. Peristaltic pump II, 9. Hoses, 10. Nozzles, 11. Filter element, 12. Controller, 13. Liquid level sensor II. 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 1-5 This embodiment provides a technical solution: a splash-proof printing system, including a housing 1, a dilution mechanism 3, and a temperature control mechanism 5;

[0026] Outer shell 1: An insulated compartment 2 is fixedly connected to its upper internal end. A symmetrically distributed material conveying mechanism 4 is located at the rear end of the insulated compartment 2. A flexible hose 9 is fixedly connected to the front side of the outer shell 1, and a nozzle 10 is fixedly connected to the front end of the flexible hose 9. The material conveying mechanism 4 includes a material conveying pipe 41, a micro flow sensor 42, a peristaltic pump 43, a material hopper 44, a motor 45, an inlet pipe 46, a stirring shaft 47, and a level sensor 48. Two material hoppers 44 are fixedly connected to the upper rear side of the insulated compartment 2. Motor 45 is fixedly connected to the upper surface of each material barrel 44. A stirring shaft 47 is fixedly connected to the lower end of the output shaft of each motor 45. Feed pipes 46 are provided on the upper surface of each material barrel 44. The feed pipes 46 pass through the through-hole 1 on the upper surface of the insulation compartment 2 and the through-hole 2 at the upper end of the outer shell 1. A liquid level sensor 48 is fixedly connected to the lower end of the outer arc surface of each material barrel 44. Peristaltic pumps 43, symmetrically distributed on both sides, are fixedly connected to the lower end of the insulation compartment 2. The lower end of each material barrel 44 is connected to the feed pipe of the vertically adjacent peristaltic pump 43. The peristaltic pump 43 and its discharge pipe are connected to the upper surface of the dilution box 31 via conveying pipe 41. A miniature flow sensor 42 is installed in the middle of each conveying pipe 41. The input terminals of the motor 45 and the peristaltic pump 43 are electrically connected to the output terminal of the controller 12. The miniature flow sensors 42 are bidirectionally electrically connected to the controller 12. The controller 12 controls the start of the two peristaltic pumps 43. The two containers 44 contain diluent and ink concentrate, respectively. The peristaltic pump 43 operates in small, frequent batches. Diluent and ink concentrate are injected into dilution box 31 through conveying pipe 41. Miniature flow sensor 42 feeds back the corresponding flow information to controller 12 to achieve precise injection. Motor 45 drives stirring shaft 47 to rotate, which speeds up the flow of materials inside material tank 44 and facilitates the outflow of diluent and ink concentrate. When the diluent or ink concentrate inside material tank 44 is low, liquid level sensor 48 feeds back in the same way, and controller 12 issues an alarm through alarm. Personnel add the corresponding raw materials through feeding pipe 46.

[0027] Dilution mechanism 3 includes a dilution box 31, which is fixedly connected to the front end of the bottom wall of the insulated compartment 2. A filter 7 is fixedly connected to the lower end of the dilution box 31, and a filter element 11 is installed inside the filter 7. A peristaltic pump 8 is fixedly connected to the bottom wall of the outer shell 1. The lower end of the filter 7 is connected to the inlet pipe of the peristaltic pump 8. The outlet pipe of the peristaltic pump 8 passes through a hose 9 and is connected to the rear end of the nozzle 10. The material conveying mechanism 4 is configured to cooperate with the dilution box 31. The dilution mechanism 3 also includes a stirring shaft 32, a gear 33, and a motor. A stirring shaft 32, symmetrically distributed front and rear, is rotatably connected to the top wall of the dilution box 31. Gears 33 are fixedly fitted onto the upper ends of each stirring shaft 32. A motor 34 is fixedly connected to the upper surface of the dilution box 31. Gears 35 are fixedly fitted onto the lower end of the output shaft of the motor 34. Gears 35 mesh with both gears 33. The input end of the motor 34 is electrically connected to the output end of the controller 12. Temperature sensors 6, evenly distributed, are fixedly connected to the bottom wall of the dilution box 31. The probes of the temperature sensors 6 are all... Below the lowest point of the stirring shaft 32, temperature sensors 6 are bidirectionally electrically connected to controller 12. Liquid level sensor 13 is fixedly connected to the lower end of the front side of dilution box 31. Liquid level sensor 13 is bidirectionally electrically connected to controller 12. Controller 12 controls peristaltic pump 8 to start, which passes the diluted ink inside dilution box 31 through the outlet pipe of peristaltic pump 8 into nozzle 10. Nozzle 10 prints ink. Filter element 11 inside filter 7 filters the ink. Filter element 11 is a polymer membrane filter element. Temperature sensor 6 detects the temperature of the ink inside dilution box 31 and feeds it back to controller 12. The average temperature of the ink at the corresponding position detected by temperature sensor 6 is the ink temperature. When liquid level sensor 13 detects that the ink inside dilution box 31 has reached the bottom, liquid level sensor 13 feeds the information back to controller 12. After the diluent and ink concentrate are injected into dilution box 31, motor 34 drives gear 35 to rotate. Gear 35 drives the whole assembly consisting of two gears 33 and stirring shaft 32 to rotate, so that the diluent and ink concentrate are mixed evenly.

[0028] Temperature control mechanism 5 includes heat dissipation fins 52 and thermoelectric coolers 53. Heat dissipation fins 52 are evenly distributed and fixedly connected to both sides of the insulation compartment 2. The thermoelectric coolers 53 are fixedly connected to the side of the heat dissipation fins 52 closest to the dilution box 31. The thermoelectric coolers 53 are respectively attached to adjacent side walls of the dilution box 31. Temperature control mechanism 5 also includes air ducts 51 and fans 54. Air ducts 51 are fixedly connected to both sides of the insulation compartment 2. The heat dissipation fins 52 are located inside adjacent air ducts 51. Fans 54 are fixedly connected to the rear side of each air duct 51. The input end of each fan 54 is electrically connected to the output end of the controller 12. When the temperature is high, the thermoelectric coolers 53... When powered on (the thermoelectric cooler 53 normally has its cooling end facing the dilution box 31 and its heating end facing the heat sink fins 52), the cooling end of the thermoelectric cooler 53 cools the dilution box 31. At the same time, the fan 54 starts, driving the air circulation inside the air duct 51 to achieve hot and cold air exchange. When the temperature is low, the controller 12 controls the thermoelectric cooler 53 to be powered on in reverse. At this time, the heating end of the thermoelectric cooler 53 faces the dilution box 31, heating the dilution box 31 and achieving temperature control of the ink inside the dilution box 31. Temperature changes will significantly change the ink viscosity. When the temperature rises, the viscosity decreases, and vice versa, keeping the ink temperature constant and the ink viscosity stable.

[0029] The system also includes a controller 12, which is located on the front side of the housing 1. The input of the controller 12 is electrically connected to an external power source, and the inputs of the nozzle 10, the peristaltic pump 8, and the thermoelectric cooler 53 are all electrically connected to the output of the controller 12.

[0030] The working principle of the anti-splash printing system provided by this utility model is as follows: When using this printing system, the controller 12 controls the peristaltic pump 8 to start, which sends the diluted ink inside the dilution box 31 through the outlet pipe of the peristaltic pump 8 into the nozzle 10. The nozzle 10 performs printing. The filter element 11 inside the filter 7 filters the ink. The filter element 11 is a polymer film filter element. The temperature sensor 6 detects the temperature of the ink inside the dilution box 31 and feeds it back to the controller 12. The average temperature of the ink at the corresponding position detected by the temperature sensor 6 is the ink temperature. When the temperature is high, the semiconductor cooling chip 53 is energized. The thermoelectric cooler 53 normally faces the dilution cartridge 31 with its cooling end facing the heat sink fins 52. The cooling end of the thermoelectric cooler 53 cools the dilution cartridge 31, while the fan 54 starts, circulating air inside the air duct 51 to exchange hot and cold air. When the temperature is low, the controller 12 controls the thermoelectric cooler 53 to reverse the current, so that the heating end of the thermoelectric cooler 53 faces the dilution cartridge 31, heating it and controlling the temperature of the ink inside. Temperature changes significantly alter the ink viscosity; as temperature increases, viscosity decreases, and vice versa, thus maintaining the ink temperature. At a constant temperature, the ink viscosity remains stable. When the level sensor 13 detects that the ink in the dilution box 31 has reached its limit, it sends the information to the controller 12. The controller 12 then activates two peristaltic pumps 43. The two containers 44 contain diluent and ink concentrate, respectively. The peristaltic pumps 43 inject the diluent and ink concentrate into the dilution box 31 in small, frequent amounts through the conveying pipe 41. The micro flow sensor 42 sends the corresponding flow information back to the controller 12, ensuring precise injection. The motor 45 drives the stirring shaft 47 to rotate, accelerating the flow of materials inside the containers 44 and facilitating the mixing of diluent and ink concentrate. When the diluent or ink concentrate in the material tank 44 reaches the bottom, the liquid level sensor 48 will provide feedback, and the controller 12 will issue an alarm. Personnel will add the corresponding raw materials through the feed pipe 46. After the diluent and ink concentrate are injected into the dilution box 31, the motor 34 will drive the gear 35 to rotate. The gear 35 will drive the entire assembly consisting of two gears 33 and the stirring shaft 32 to rotate, so that the diluent and ink concentrate are mixed evenly. The dilution box 31 and the material tank 44 are both located inside the insulated compartment 2, which is an XPS insulated board compartment. The dilution box 31 and the material tank 44 are isolated from the outside world, which facilitates temperature control.

[0031] It is worth noting that the controller 12 disclosed in the above embodiments can be an STM32H743XIH6, the nozzle 10 can be an A400 nozzle, the peristaltic pump 8 can be a BT-100B peristaltic pump, the motor 34 can be an 86HS35 stepper motor, the micro flow sensor 42 can be a 93N-6211 micro flow sensor, the peristaltic pump 43 can be a YW01 series peristaltic pump, the motor 45 can be a 2BYG stepper motor, the liquid level sensor 48 and the liquid level sensor 13 can be YJWS non-contact liquid level sensors, and the temperature sensor 6 can be an MF52B-103F3950 temperature sensor. The controller 12 controls the operation of the nozzle 10, the peristaltic pump 8, the motor 34, the micro flow sensor 42, the peristaltic pump 43, the motor 45, the temperature sensor 6, the thermoelectric cooler 53, the fan 54, the liquid level sensor 48, and the liquid level sensor 13 using methods commonly used in the prior art.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A splash-proof inkjet printing system, characterized by: It includes a housing (1), a dilution mechanism (3), and a temperature control mechanism (5); The outer shell (1) has an insulated compartment (2) fixedly connected to its upper part. The rear end of the insulated compartment (2) is provided with a conveying mechanism (4) symmetrically distributed on the left and right. The front side of the outer shell (1) is fixedly connected with a hose (9). The front end of the hose (9) is fixedly connected with a nozzle (10). Dilution mechanism (3): It includes a dilution box (31), the front end of the bottom wall of the heat insulation compartment (2) is fixedly connected to the dilution box (31), the lower end of the dilution box (31) is fixedly connected to the filter (7), the filter (7) is provided with a filter element (11), the bottom wall of the outer shell (1) is fixedly connected to the peristaltic pump (8), the lower end of the filter (7) is connected to the liquid inlet pipe of the peristaltic pump (8), the liquid outlet pipe of the peristaltic pump (8) passes through the hose (9) and is connected to the rear end of the nozzle (10), and the material conveying mechanism (4) is set in cooperation with the dilution box (31); Temperature control mechanism (5): It includes heat dissipation fins (52) and semiconductor cooling chip (53). The left and right side walls of the heat insulation compartment (2) are fixedly connected with uniformly distributed heat dissipation fins (52). The side of the heat dissipation fins (52) close to the dilution box (31) is fixedly connected with semiconductor cooling chip (53). The semiconductor cooling chip (53) is respectively attached to the adjacent side wall of the dilution box (31).

2. A spill-proof jet printing system according to claim 1, wherein: It also includes a controller (12), which is located on the front side of the housing (1). The input end of the controller (12) is electrically connected to an external power source, and the input ends of the nozzle (10), the peristaltic pump (8) and the semiconductor cooling chip (53) are all electrically connected to the output end of the controller (12).

3. A spill-proof jet printing system according to claim 2, wherein: The dilution mechanism (3) also includes a stirring shaft (32), a gear (33), a motor (34), and a gear (35). The top wall of the dilution box (31) is rotatably connected to a stirring shaft (32) symmetrically distributed in front and behind. The upper end of the stirring shaft (32) is fixedly fitted with a gear (33). The upper surface of the dilution box (31) is fixedly connected to a motor (34). The lower end of the output shaft of the motor (34) is fixedly fitted with a gear (35). The gear (35) meshes with both gears (33). The input end of the motor (34) is electrically connected to the output end of the controller (12).

4. A spill-proof jet printing system according to claim 2, wherein: The temperature control mechanism (5) also includes an air duct (51) and a fan (54). The left and right side walls of the insulation compartment (2) are fixedly connected to the air duct (51). The heat dissipation fins (52) are located inside the adjacent air ducts (51). The rear side of the air duct (51) is fixedly connected to the fan (54). The input end of the fan (54) is electrically connected to the output end of the controller (12).

5. A spill-proof jet printing system according to claim 2, wherein: The feeding mechanism (4) includes a feeding pipe (41), a micro flow sensor (42), a peristaltic pump (43), a hopper (44), a motor (45), a feed pipe (46), a stirring shaft (47), and a level sensor (48). Two hoppers (44) are fixedly connected to the upper rear side of the insulation compartment (2). A motor (45) is fixedly connected to the upper surface of each hopper (44). A stirring shaft (47) is fixedly connected to the lower end of the output shaft of each motor (45). A feed pipe (46) is provided on the upper surface of each hopper (44). The feed pipe (46) passes through the through hole (1) on the upper surface of the insulation compartment (2) and the through hole (2) on the upper end of the outer shell (1). Liquid level sensor 1 (48) is fixedly connected to the lower end of the outer arc surface of the material tank (44). Peristaltic pump 1 (43) is fixedly connected to the lower end of the heat insulation compartment (2) and is symmetrically distributed on the left and right. The lower end of the material tank (44) is connected to the feed pipe of the vertically adjacent peristaltic pump 1 (43). The discharge pipe of peristaltic pump 1 (43) is connected to the upper surface of the dilution box (31) through conveying pipe 1 (41). A miniature flow sensor (42) is provided in the middle of conveying pipe 1 (41). The input ends of motor 2 (45) and peristaltic pump 1 (43) are electrically connected to the output end of controller (12). The miniature flow sensor (42) is bidirectionally electrically connected to controller (12).

6. A spill-proof jet printing system according to claim 3, wherein: The bottom wall of the dilution box (31) is fixedly connected with uniformly distributed temperature sensors (6). The probes of the temperature sensors (6) are all lower than the bottom of the stirring shaft (32). The temperature sensors (6) are all bidirectionally electrically connected to the controller (12).

7. The anti-splash printing system according to claim 2, characterized in that: A liquid level sensor (13) is fixedly connected to the lower end of the front side of the dilution box (31), and the liquid level sensor (13) is bidirectionally electrically connected to the controller (12).

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