A thermal foam jet printer with adjustable jetting distance

Abstract

The utility model discloses a kind of hot foaming ink-jet printer of being convenient for adjusting spray printing distance, it is related to ink-jet printing technical field.A kind of hot foaming ink-jet printer being convenient for adjusting spray printing distance, including conveyer frame, the top of conveyer frame is fixedly installed with control cabinet, paperboard positioning structure is set on conveyer frame, dust cleaning structure, dust cleaning structure is located on conveyer frame, dust cleaning structure includes dust collector, dust suction hose, cleaning frame, driving motor one and cleaning cylinder brush, cleaning frame is set on paperboard positioning structure, cleaning cylinder brush is rotatably connected in the inside of cleaning frame, by driving motor one, cleaning cylinder brush is rotated to clean dust on paperboard surface, simultaneously, dust collector is inhaled dust through dust suction hose, the design of dust suction hole and sealing ring on cleaning cylinder brush guarantees the effect of cleaning and dust suction, effectively removes dust on paperboard surface, avoids the influence of dust on ink-jet quality, makes ink-jet pattern more clear and accurate.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printing technology, and in particular to a thermal inkjet printer with adjustable printing distance. Background Technology

[0002] In the food, pharmaceutical, daily chemical and industrial packaging industries, thermal inkjet printers are widely used for marking information such as production dates, batch numbers and traceability codes due to their fast printing speed, high resolution and adaptability to various material surfaces.

[0003] However, in actual production scenarios, during the transportation and storage of materials to be printed, the surface is easily contaminated with dust, fibers, or tiny particles shed from the material itself. Existing thermal inkjet printers with adjustable printing distance do not have a dedicated cleaning structure for surface dust before printing, resulting in dust being directly retained in the printing area. This dust can prevent the ink ejected from the inkjet nozzle from effectively bonding with the material surface, causing missing ink dots, blurred edges, or broken information in the printed pattern, affecting the readability of the markings, and even making it impossible to identify product traceability information, thus affecting the printing quality. Therefore, we propose a thermal inkjet printer with an adjustable printing distance. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a thermal inkjet printer with an adjustable printing distance. This solves the problem that in actual production scenarios, the surface of the material to be printed is easily contaminated with floating dust, fibers, or tiny particles shed from the material itself during the transportation and storage process. Existing thermal inkjet printers with adjustable printing distance do not have a special cleaning structure for floating dust on the surface of the material before printing, which causes floating dust to remain directly in the printing area. Floating dust will prevent the ink sprayed from the inkjet nozzle from effectively bonding with the surface of the material, resulting in missing ink dots, blurred edges, or broken information in the printed pattern, affecting the readability of the marking, and even making it impossible to identify product traceability information, thereby affecting the quality of printing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a thermal inkjet printer with adjustable printing distance, comprising:

[0006] A conveyor frame, with a control console fixedly installed on top of the conveyor frame, and a cardboard positioning structure set on the conveyor frame;

[0007] Dust removal structure, located on the conveyor frame;

[0008] The dust cleaning structure includes a vacuum cleaner, a vacuum hose, a cleaning frame, a drive motor, and a cleaning brush. The cleaning frame is mounted on a cardboard positioning structure. The cleaning brush is rotatably connected to the inside of the cleaning frame, with both ends of the cleaning brush extending rotatably to the outside of the cleaning frame. The drive motor is mounted on one side of the cleaning frame, and its output end is fixedly connected to the cleaning brush. One end of the vacuum hose is fixedly connected to the vacuum cleaner and communicates with its interior. The end of the vacuum hose away from the vacuum cleaner is fixedly connected to the side of the cleaning frame away from the drive motor. The end of the cleaning brush away from the drive motor is rotatably connected to the interior of the vacuum hose.

[0009] Preferably, the outer surface of the cleaning brush has multiple suction holes, and the outer surface of the suction hose is fixedly fitted with a sealing ring, which fits into the cleaning frame.

[0010] Preferably, the cardboard positioning structure includes two electric telescopic rods, a lifting platform, a bidirectional threaded rod, and a stepper motor. The two electric telescopic rods are fixedly connected to the top of the conveyor frame, and the telescopic ends of the two electric telescopic rods are fixedly connected to the lifting platform. The bidirectional threaded rod is rotatably connected inside the lifting platform. The stepper motor is installed on one side of the lifting platform, and the output end of the stepper motor extends rotatably into the interior of the lifting platform and is fixedly connected to the bidirectional threaded rod. Two limiting pressure plates are threaded onto the outer surface of the bidirectional threaded rod, and both limiting pressure plates are slidably connected to the inner top wall of the lifting platform.

[0011] Preferably, the cardboard positioning structure further includes a fixed frame and an electric push rod. The fixed frame is fixedly connected to the top of the lifting platform, and the electric push rod is installed on the top of the fixed frame. The telescopic end of the electric push rod slides into the interior of the fixed frame and is fixedly connected to an auxiliary frame. An auxiliary roller is rotatably connected inside the auxiliary frame. A second drive motor is installed on one side of the auxiliary roller. The output end of the second drive motor rotatably extends into the interior of the auxiliary frame and is fixedly connected to the auxiliary roller. A cleaning frame is fixedly connected to the side of the auxiliary frame away from the lifting platform.

[0012] Preferably, reinforcing plates are fixedly connected to both sides of the auxiliary frame, and both reinforcing plates are fixedly connected to one side of the cleaning frame.

[0013] Preferably, a fixed plate is fixedly connected to one side of the control console, and two electric telescopic rods are installed on the top of the fixed plate. The telescopic ends of the two electric telescopic rods slide through the fixed plate and are fixedly connected to a movable frame. A threaded rod is rotatably connected inside the movable frame, and a stepper motor is installed on one side of the movable frame. The output end of the stepper motor extends rotatably into the interior of the movable frame and is fixedly connected to the threaded rod.

[0014] Preferably, a movable plate is threaded onto the outer surface of the threaded rod, the movable plate is slidably connected to the inner top wall of the movable frame, and a coding mechanism is installed on one side of the movable plate.

[0015] Preferably, a photoelectric sensor is fixedly installed on the side of the movable plate away from the coding mechanism.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This thermal inkjet printer, which allows for easy adjustment of the printing distance, uses a drive motor to rotate a cleaning brush to remove dust from the surface of cardboard. Simultaneously, a vacuum cleaner uses a suction hose to remove the dust. The design of the suction holes and sealing rings on the cleaning brush ensures effective cleaning and dust removal, effectively removing dust from the surface of the cardboard and preventing dust from affecting the printing quality, resulting in clearer and more accurate printed patterns. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the cleaning brush structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the mobile frame structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the lifting platform structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the auxiliary frame structure of this utility model;

[0024] Figure 6 This is a schematic cross-sectional view of the cleaning rack of this utility model.

[0025] Reference numerals: 1. Conveyor frame; 2. Control console; 3. Vacuum cleaner; 4. Electric telescopic rod one; 5. Fixed plate; 6. Stepper motor one; 7. Electric telescopic rod two; 8. Lifting platform; 9. Vacuum hose; 10. Limiting plate; 11. Fixed frame; 12. Electric push rod; 13. Cleaning frame; 14. Cleaning brush; 15. Bidirectional threaded rod; 16. Stepper motor two; 17. Photoelectric sensor; 18. Inkjet printing mechanism; 19. Moving frame; 20. Threaded rod; 21. Moving plate; 22. Drive motor one; 23. Auxiliary frame; 24. Auxiliary roller; 25. Drive motor two; 26. Vacuum hole; 27. Reinforcing plate. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Conveyor frame 1: Serves as the main support structure of the equipment, bearing the control console 2, cardboard positioning structure, and dust cleaning structure;

[0031] Control console 2: Controls the overall operation of the equipment, receives feedback signals from photoelectric sensor 17 and fine-tunes the position of inkjet printing mechanism 18;

[0032] Vacuum cleaner 3: It generates suction through the vacuum hose 9 to collect floating dust on the surface of the cardboard. This is an existing device. For reference, see patent: CN219885252U.

[0033] Electric telescopic pole 14: The telescopic end drives the moving frame 19 to move up and down, initially adjusting the vertical height of the inkjet printing mechanism 18;

[0034] Fixed plate 5: Fixedly connected to one side of control console 2, supporting two electric telescopic rods 4;

[0035] Stepper motor 6: The output end drives the threaded rod 20 to rotate, driving the moving plate 21 to move horizontally;

[0036] Electric telescopic pole 27: The telescopic end drives the lifting platform 8 to move up and down, adjusting the height of the positioning structure;

[0037] Lifting platform 8: Supports the bidirectional threaded rod 15 and the limiting pressure plate 10 to achieve height adjustment;

[0038] Vacuum hose 9: One end is connected to vacuum cleaner 3, and the other end is connected to cleaning rack 13, with the internal connection to the vacuuming channel;

[0039] Limiting pressure plate 10: threadedly connected to bidirectional threaded rod 15, it moves in opposite directions to adapt to the width of the cardboard;

[0040] Fixed frame 11: Fixedly connected to the top of the lifting platform 8, supporting the electric push rod 12;

[0041] Electric push rod 12: The telescopic end drives the auxiliary frame 23 to slide, adjusting the position of the auxiliary roller 24;

[0042] Cleaning frame 13: Set on auxiliary frame 23, supporting cleaning cylinder brush 14 and vacuum hose 9;

[0043] Cleaning brush 14: When rotating, it raises the floating dust on the cardboard surface and sucks it in through the suction hole 26;

[0044] The bidirectional threaded rod 15 rotates inside the lifting platform 8, driving the two limit pressure plates 10 to move in opposite directions;

[0045] Stepper motor 2 16: The output end drives the bidirectional threaded rod 15 to rotate, adjusting the spacing of the limit pressure plate 10;

[0046] Photoelectric sensor 17: Real-time detection of the distance to the cardboard and feedback signal to control console 2;

[0047] Inkjet printing mechanism 18: Performs thermal inkjet printing operation;

[0048] Mobile frame 19: Supports threaded rod 20 and moving plate 21 to achieve vertical adjustment of inkjet printing mechanism 18;

[0049] Threaded rod 20: rotates inside the movable frame 19, driving the movable plate 21 to move horizontally;

[0050] Moving plate 21: threadedly connected to threaded rod 20, driving the inkjet printing mechanism 18 to move horizontally;

[0051] Drive motor 22: The output end drives the cleaning brush 14 to rotate, cleaning the floating dust on the cardboard surface;

[0052] Auxiliary frame 23: slides inside the fixed frame 11, driving the auxiliary roller 24 and the cleaning frame 13 to move;

[0053] Auxiliary roller 24: When rotating, it assists in the stable movement of the cardboard, ensuring accurate arrival at the coding position;

[0054] Drive motor 25: The output end drives the auxiliary roller 24 to rotate;

[0055] Dust suction hole 26: It is opened on the outer surface of the cleaning tube brush 14 to suck up the dust that is raised;

[0056] Reinforcing plate 27: Fixedly connected to both sides of auxiliary frame 23 to enhance the connection stability of cleaning frame 13.

[0057] Example 1:

[0058] like Figure 1-6 As shown, during the cardboard conveying process, the movement of the auxiliary frame 23 synchronously drives the cleaning frame 13 to move downwards, and the dust cleaning structure starts working. The drive motor 22 starts, and its output end drives the cleaning brush 14 to rotate inside the cleaning frame 13. The outer surface of the cleaning brush 14 has multiple suction holes 26. When the cleaning brush 14 contacts and rotates with the cardboard surface, it can lift the dust on the cardboard surface. At this time, the vacuum cleaner 3 works and generates suction through the suction hose 9. One end of the suction hose 9 is fixedly connected to the vacuum cleaner 3 and internally connected, and the other end is fixedly connected to the side of the cleaning frame 13 away from the drive motor 22. The end of the cleaning brush 14 away from the drive motor 22 is rotatably connected to the inside of the suction hose 9. The lifted dust is sucked into the suction hose 9 through the suction holes 26 and then collected by the vacuum cleaner 3, achieving the purpose of cleaning the dust on the cardboard surface and providing a clean working environment for subsequent inkjet printing. The sealing ring fixedly fitted on the outer surface of the suction hose 9 fits into the cleaning frame 13, ensuring the sealing during the dust collection process and preventing dust leakage.

[0059] Example 2:

[0060] like Figure 5 As shown, the reinforcing plate 27 is fixedly connected to both sides of the auxiliary frame 23 and one side of the cleaning frame 13, which can effectively enhance the connection strength between the two and prevent the connection from loosening or breaking when used for a long time or under great force. The reinforcing plate 27 can distribute these forces to the auxiliary frame 23 and avoid the cleaning frame 13 from being damaged due to excessive local force.

[0061] Furthermore, when using this device, firstly, the two electric telescopic rods 7 are activated, and their telescopic ends drive the lifting platform 8 to move up and down, thereby adjusting the height of the entire positioning structure to adapt to the positioning requirements of different specifications of cardboard. The stepper motor 16 works, and its output end drives the bidirectional threaded rod 15 to rotate inside the lifting platform 8. Since the two limiting pressure plates 10 are threadedly connected to the bidirectional threaded rod 15 and slidably connected to the inner top wall of the lifting platform 8, the rotation of the bidirectional threaded rod 15 will cause the two limiting pressure plates 10 to move in opposite directions, thereby adjusting according to the width of the cardboard.

[0062] At the same time, the electric push rod 12 is started, and its telescopic end drives the auxiliary frame 23 to slide inside the fixed frame 11. The auxiliary frame 23 drives the auxiliary roller 24 to move, and the drive motor 25 drives the auxiliary roller 24 to rotate. The auxiliary roller 24 contacts the cardboard, assisting the cardboard to move stably during the conveying process and ensuring that the cardboard can accurately reach the coding position.

[0063] During the cardboard conveying process, the movement of the auxiliary frame 23 synchronously drives the cleaning frame 13 to move downwards, and the dust cleaning structure starts working. The drive motor 22 starts, and its output end drives the cleaning brush 14 to rotate inside the cleaning frame 13. The outer surface of the cleaning brush 14 has multiple suction holes 26. When the cleaning brush 14 contacts and rotates with the cardboard surface, it can lift the floating dust on the cardboard surface. At this time, the vacuum cleaner 3 works and generates suction through the suction hose 9. One end of the suction hose 9 is fixedly connected to the vacuum cleaner 3 and internally connected, and the other end is fixedly connected to the side of the cleaning frame 13 away from the drive motor 22. The end of the cleaning brush 14 away from the drive motor 22 is rotatably connected to the inside of the suction hose 9. The lifted floating dust is sucked into the suction hose 9 through the suction holes 26 and then collected by the vacuum cleaner 3, achieving the purpose of cleaning the floating dust on the cardboard surface and providing a clean working environment for subsequent inkjet printing. The sealing ring fixedly fitted on the outer surface of the suction hose 9 fits snugly with the cleaning frame 13 to ensure the sealing during the vacuuming process and prevent floating dust leakage.

[0064] The control console 2 controls the entire device. When the two electric telescopic rods 4 are activated, their telescopic ends drive the moving frame 19 to move up and down, thereby initially adjusting the vertical height of the inkjet printing mechanism 18. The stepper motor 6 works, and its output end drives the threaded rod 20 to rotate inside the moving frame 19. Since the moving plate 21 is threadedly connected to the threaded rod 20 and slidably connected to the inner top wall of the moving frame 19, the rotation of the threaded rod 20 will cause the moving plate 21 to move horizontally inside the moving frame 19, thereby driving the inkjet printing mechanism 18 to move horizontally, realizing the position adjustment of the inkjet printing mechanism 18 in the horizontal and vertical directions, and precisely controlling the printing distance.

[0065] During the adjustment process, the photoelectric sensor 17 installed on the side of the moving plate 21 away from the inkjet printing mechanism 18 detects the distance between the paperboard and the paperboard in real time and feeds the signal back to the control console 2. The control console 2 further fine-tunes the position of the inkjet printing mechanism 18 based on the feedback signal to ensure that the inkjet printing mechanism 18 maintains the optimal printing distance with the paperboard, and then performs thermal inkjet printing operation.

[0066] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A thermal inkjet printer with easily adjustable printing distance, characterized in that, include: A conveyor frame (1) is provided, and a control console (2) is fixedly installed on the top of the conveyor frame (1). A cardboard positioning structure is provided on the conveyor frame (1). Dust removal structure, the dust removal structure is located on the conveyor frame (1); The dust cleaning structure includes a vacuum cleaner (3), a vacuum hose (9), a cleaning frame (13), a drive motor (22), and a cleaning brush (14). The cleaning frame (13) is set on a cardboard positioning structure, and the cleaning brush (14) is rotatably connected to the inside of the cleaning frame (13). Both ends of the cleaning brush (14) rotatably extend to the outside of the cleaning frame (13). Among them, the drive motor (22) is installed on one side of the cleaning frame (13), the output end of the drive motor (22) is fixedly connected to the cleaning cylinder brush (14), one end of the vacuum cleaner hose (9) is fixedly connected to the vacuum cleaner (3) and communicates with its interior, the end of the vacuum cleaner hose (9) away from the vacuum cleaner (3) is fixedly connected to the side of the cleaning frame (13) away from the drive motor (22), and the end of the cleaning cylinder brush (14) away from the drive motor (22) is rotatably connected to the interior of the vacuum cleaner hose (9).

2. The thermal inkjet printer with adjustable printing distance according to claim 1, characterized in that: The outer surface of the cleaning brush (14) is provided with multiple suction holes (26), and the outer surface of the suction hose (9) is fixedly fitted with a sealing ring, which is in contact with the cleaning frame (13).

3. The thermal inkjet printer with adjustable printing distance according to claim 1, characterized in that: The cardboard positioning structure includes two electric telescopic rods (7), a lifting platform (8), a bidirectional threaded rod (15), and a stepper motor (16). The two electric telescopic rods (7) are fixedly connected to the top of the conveyor frame (1). The telescopic ends of the two electric telescopic rods (7) are fixedly connected to the lifting platform (8). The bidirectional threaded rod (15) is rotatably connected inside the lifting platform (8). Among them, stepper motor 2 (16) is installed on one side of the lifting platform (8). The output end of stepper motor 2 (16) rotates and extends into the interior of the lifting platform (8) and is fixedly connected to the bidirectional threaded rod (15). Two limiting pressure plates (10) are threaded on the outer surface of the bidirectional threaded rod (15). Both limiting pressure plates (10) are slidably connected to the inner top wall of the lifting platform (8).

4. A thermal inkjet printer with adjustable printing distance according to claim 3, characterized in that: The cardboard positioning structure also includes a fixed frame (11) and an electric push rod (12). The fixed frame (11) is fixedly connected to the top of the lifting platform (8). The electric push rod (12) is installed on the top of the fixed frame (11). The telescopic end of the electric push rod (12) slides into the interior of the fixed frame (11) and is fixedly connected to an auxiliary frame (23). The auxiliary frame (23) is rotatably connected to an auxiliary roller (24). A second drive motor (25) is installed on one side of the auxiliary roller (24). The output end of the second drive motor (25) extends rotatably into the interior of the auxiliary frame (23) and is fixedly connected to the auxiliary roller (24). The cleaning frame (13) is fixedly connected to the side of the auxiliary frame (23) away from the lifting platform (8).

5. A thermal inkjet printer with adjustable printing distance according to claim 4, characterized in that: The auxiliary frame (23) is fixedly connected to two reinforcing plates (27) on both sides, and both reinforcing plates (27) are fixedly connected to one side of the cleaning frame (13).

6. A thermal inkjet printer with adjustable printing distance according to claim 1, characterized in that: A fixed plate (5) is fixedly connected to one side of the control console (2). Two electric telescopic rods (4) are installed on the top of the fixed plate (5). The telescopic ends of the two electric telescopic rods (4) slide through the fixed plate (5) and are fixedly connected to a movable frame (19). The movable frame (19) is rotatably connected to a threaded rod (20), and a stepper motor (6) is installed on one side of the movable frame (19). The output end of the stepper motor (6) extends rotatably into the interior of the movable frame (19) and is fixedly connected to the threaded rod (20).

7. A thermal inkjet printer with adjustable printing distance according to claim 6, characterized in that: The outer surface of the threaded rod (20) is threaded with a movable plate (21), which is slidably connected to the inner top wall of the movable frame (19). A coding mechanism (18) is installed on one side of the movable plate (21).

8. A thermal inkjet printer with adjustable printing distance according to claim 7, characterized in that: A photoelectric sensor (17) is fixedly installed on the side of the movable plate (21) away from the inkjet printing mechanism (18).

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