Printing ink spraying equipment

The motor-driven bidirectional screw and limit frame system, combined with gear transmission, can achieve precise position and angle adjustment of the nozzle, solving the problem of uneven spraying on complex curved workpieces caused by traditional equipment, and improving the spraying effect and equipment availability.

CN120662477APending Publication Date: 2025-09-19ZHEJIANG YICAI NEW MATERIALS CO LTD
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Patent Information

Application Number
CN202510824874.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-19
Publication Date
2025-09-19

AI Technical Summary

Technical Problem

Traditional ink spraying equipment has difficulty achieving precise spraying on workpieces with complex curved surfaces or multi-angle structures, resulting in ink accumulation or insufficient coverage in some areas.

Method used

The motor-driven bidirectional screw and limit frame system is combined with gear transmission to achieve precise position and angle adjustment of the nozzle. It is equipped with a brush to clean the filter plate to prevent clogging and has a convenient nozzle disassembly structure.

Benefits of technology

It improves the uniformity and accuracy of spraying, is suitable for workpieces with complex structures, ensures coverage integrity, reduces the difficulty of equipment maintenance and the risk of downtime, and improves equipment availability.

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Abstract

The invention relates to the technical field of printing ink spraying, and provides printing ink spraying equipment which comprises an equipment body, a first motor is installed at the right end of the equipment body through a fixing frame, the driving end of the first motor is fixedly connected with a two-way lead screw, and the outer wall of the two-way lead screw is connected with a sliding sleeve through a threaded sleeve. Two limiting frames are fixedly connected to the outer wall of the two-way lead screw, the close ends of the two limiting frames are connected with a rotating frame through adjusting assemblies, the rotating frame is rotationally connected to the periphery of the sliding sleeve, a connecting box is fixedly connected to the bottom end of the rotating frame, and a protruding plate is fixedly connected to the bottom end of the connecting box; the outer wall of the protruding plate is connected with a mounting frame through a limiting assembly. The first motor drives the bidirectional lead screw to rotate and drives the sliding sleeve to linearly move along the guide rod, accurate adjustment of the horizontal position of the spray head is achieved, meanwhile, when the sliding sleeve moves, the sliding sleeve drives the sliding rod through the limiting frame, and the rotating frame rotates through transmission of the toothed plate, the horizontal gear and the half gear, so that the inclination angle of the spray head is adjusted.
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Description

Technical Field

[0001] The present invention relates to the technical field of ink spraying, in particular to an ink spraying device. Background Art

[0002] In the field of industrial manufacturing, ink spraying equipment achieves protective treatment on the surfaces of various workpieces by precisely controlling the ink spraying position, angle and flow rate. With the improvement of industrial automation level and the complexity of workpiece structure, the market has put forward higher requirements on the accuracy, flexibility and reliability of spraying equipment, especially for workpieces with complex curved surfaces or multi-angle structures. The equipment needs to be able to realize dynamic adjustment of the nozzle position and angle to ensure spraying uniformity and coverage integrity.

[0003] Currently, traditional ink spraying equipment typically uses a fixed-angle nozzle structure, or can only achieve limited angle changes through manual adjustment. When dealing with complex workpieces such as curved and stepped shapes, inaccurate nozzle position and angle adjustment can easily lead to blind spots or uneven coating thickness. For example, when spraying workpieces with concave and convex structures, fixed-angle nozzles cannot meet the spraying requirements of different curved surfaces, which may cause ink accumulation in some areas and insufficient coverage in others. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides an ink spraying device that solves the problem that a fixed-angle nozzle is difficult to meet the spraying requirements of different curved surfaces, and may cause ink accumulation in some areas and insufficient coverage in some areas.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: an ink spraying device, comprising a device main body, wherein the right end of the device main body is equipped with a motor 1 through a fixed frame, the driving end of the motor 1 is fixedly connected to a bidirectional screw, the outer wall of the bidirectional screw is connected to a sliding sleeve through a threaded sleeve, the outer wall of the bidirectional screw is fixedly connected to two limit frames, and the proximal ends of the two limit frames are connected to a rotating frame through an adjusting assembly, the rotating frame is rotatably connected to the outer periphery of the sliding sleeve, the bottom end of the rotating frame is fixedly connected to a connecting box, the bottom end of the connecting box is fixedly connected to a convex plate, the outer wall of the convex plate is connected to a mounting frame through a limiting assembly, the bottom end of the mounting frame is fixedly connected to a nozzle, the right end of the device main body is equipped with a motor 2 through a fixed frame, the driving end of the motor 2 is fixedly connected to a rotating rod 1, the inner wall of the rotating rod 1 is connected to a clamping disk and a brush through a steering assembly, the inner periphery of the device main body is fixedly connected to a support plate, the inner periphery of the device main body is fixedly connected to a guide plate, the inner wall of the guide plate is fixedly connected to a filter plate, and the brush is arranged on the top of the filter plate.

[0006] Preferably, the adjustment assembly includes a sliding rod located at one end near the two limit frames, the sliding rod is slidably connected to the inner wall of the sliding sleeve, the bottom end of the sliding rod is fixedly connected to a tooth plate, the bottom end of the tooth plate is meshedly connected to a flat gear, the bottom end of the flat gear is meshedly connected to a half gear, and the fixed shaft of the half gear is connected to the inner wall of the rotating frame.

[0007] Preferably, the limiting assembly includes a limiting rod located on the inner wall of the convex plate, the right end of the limiting rod is fixedly connected to a bolt, the outer wall of the bolt is threadedly connected to the inner wall of the mounting frame, the outer wall of the bolt is provided with a gasket, and the gasket is provided at the right end of the mounting frame.

[0008] Preferably, the rear end of the mounting frame is fixedly connected to a limiting plate, and the clamping head of the limiting plate is arranged at the rear end of the connection box.

[0009] Preferably, the steering assembly includes a bevel gear 1 located on the outer wall of a rotating rod 1, the top end of the bevel gear 1 is meshedly connected to a bevel gear 2, the inner wall of the bevel gear 2 is rotatably connected to a rotating rod 2, the outer wall of the rotating rod 2 is rotatably connected to the inner wall of the support plate, the top end of the rotating rod 2 is fixedly connected to the bottom end of the clamping disk, and the bottom end of the rotating rod 2 is fixedly connected to the top end of the brush.

[0010] Preferably, the inner wall of the sliding sleeve is slidably connected to a guide rod, and the guide rod is fixedly connected to the inner wall of the device body.

[0011] Preferably, a cover plate is slidably connected to the front outer wall of the device body, and a handle is fixedly connected to the front end of the cover plate.

[0012] Preferably, the inner wall of the device body is connected to the mounting frame via a connecting pipe, the connecting pipe passes through the connection box, an operation panel is fixedly connected to the left front end of the device body, and a fan is fixedly connected to the right end of the device body.

[0013] Preferably, the method comprises the following steps:

[0014] Step 1: Slide the cover plate through the handle, place the object to be sprayed on the clamping plate, and clamp the object through the clamping plate;

[0015] Step 2: Close the cover and start the motor to adjust the angle and position of the nozzle;

[0016] Step 3: Start the second motor to drive the clamping plate to rotate, thereby rotating the object, and at the same time, the brush rotates the filter plate to prevent the filter plate from being blocked;

[0017] Step 4: Start the spraying device through the operation panel to spray the object;

[0018] Step 5: After spraying is completed, the excess paint will flow through the support plate to the filter plate for filtration and then flow into the liquid storage tank inside the main body of the equipment;

[0019] Step 6: Then open the cover and remove the object from the clamping plate.

[0020] Preferably, in step 2, motor 1 drives the bidirectional screw to rotate, so that the sleeve can move linearly to adjust the position of the nozzle. The flat gear in the sleeve can rotate under the action of the tooth plate, thereby driving the rotating frame to rotate through the half gear, and then adjusting the angle of the nozzle.

[0021] Working principle: After opening the cover from the main body of the equipment through the handle, the object to be sprayed is placed on the clamping disk, and the clamping disk is wirelessly controlled to clamp the object and start and stop the fan through the operation panel. Then, the cover is closed and the motor is started to drive the bidirectional lead screw to rotate. The bidirectional lead screw can drive the sleeve to move in a straight line. Since the bidirectional lead screw is connected to the slide rod through the limit frame, the slide rod is arranged on the bottom side of the bidirectional lead screw, and a tooth plate is arranged at the bottom end of the slide rod. When the slide sleeve moves, it will drive the flat gear to move. Under the action of the tooth plate, the flat gear will rotate. When the flat gear rotates, it will drive the rotating frame to rotate through the half gear, thereby adjusting the angle of the nozzle. The interior of the equipment body can be observed through the cover, and the position and angle of the nozzle after adjustment can be observed through the cover. Then, the spraying equipment inside the main body of the equipment is started through the operation panel, and the ink is transmitted to the nozzle on the mounting frame through the connecting tube. The ink filter is filtered by the filter plate and flows into the ink storage tank in the main body of the equipment. When the ink is filtered through the filter plate, the rotation of the brush can prevent the filter plate from being blocked by bubbles generated when the ink is left behind. When spraying is completed, the cover plate is opened and the object is taken out. When the nozzle needs to be disassembled, the bolt is turned to cancel the limit of the convex plate by the limit rod, and then the mounting bracket is dragged backward to cancel the limit of the convex plate on the mounting bracket, and the nozzle can be disassembled. Otherwise, the mounting bracket is slid onto the convex plate so that the limit plate is stuck in the groove of the connecting box. Then, the bolt is turned to fix the mounting bracket to the connecting box through the limit rod.

[0022] The present invention provides an ink spraying device having the following beneficial effects:

[0023] 1. The present invention drives the bidirectional screw to rotate through a motor, driving the sliding sleeve to move linearly along the guide rod to achieve precise adjustment of the horizontal position of the nozzle. At the same time, when the sliding sleeve moves, the sliding rod is driven by the limit frame, and the rotating frame is rotated through the transmission of the tooth plate, flat gear and half gear, thereby adjusting the inclination angle of the nozzle, thereby improving the uniformity and accuracy of spraying, and is particularly suitable for multi-angle coverage of workpieces with complex structures.

[0024] 2. In the spraying process of the present invention, the unattached ink drops onto the support plate, converges to the filter plate through the guide plate, and filters the particulate impurities through the metal mesh layer of the filter plate, and the clean ink flows into the liquid storage tank of the equipment body for recycling.

[0025] 3. The second motor of the present invention drives the second rotating rod through the first bevel gear and the second bevel gear, so that the clamping disc and the animal rotate at the same time, and the brush rotates synchronously to clean the surface of the filter plate. The continuous rotation of the brush can timely remove the residual ink and bubbles in the filter holes, avoid the accumulation of residual ink and equipment shutdown caused by the clogging of the filter plate, and improve the filtering effect.

[0026] 4. The nozzle of the present invention is connected to the limiting assembly of the mounting bracket and the convex plate: when disassembling, rotate the bolt to retract the limiting rod, drag the mounting bracket backward to make the limiting plate disengage from the groove of the connecting box, and the nozzle can be removed as a whole, without the need for tools; when installing, align the mounting bracket slot with the guide rail and push it in, tighten the bolt in the reverse direction, insert the limiting rod into the convex plate to lock the position, lowering the maintenance threshold, making it convenient for operators to quickly replace nozzles or clear blockages, and improving equipment availability. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A perspective view of the present invention;

[0028] Figure 2 It is a schematic structural diagram of the rotating disk of the present invention;

[0029] Figure 3 Schematic diagram of the filter plate structure of the present invention;

[0030] Figure 4 This is a structural diagram of a bevel gear according to the present invention;

[0031] Figure 5 It is a schematic diagram of the flat gear structure of the present invention;

[0032] Figure 6 It is a schematic diagram of the connecting pipe structure of the present invention.

[0033] Among them, 1. Equipment body; 2. Operation panel; 3. Cover; 4. Handle; 5. Motor 1; 6. Bidirectional screw; 7. Sleeve; 8. Guide rod; 9. Limit frame; 10. Slide rod; 11. Tooth plate; 12. Flat gear; 13. Half gear; 14. Rotating frame; 15. Connecting box; 16. Connecting pipe; 17. Convex plate; 18. Mounting frame; 19. Limit plate; 20. Nozzle; 21. Bolt; 22. Limit rod; 23. Gasket; 24. Motor 2; 25. Rotating rod 1; 26. Bevel gear 1; 27. Bevel gear 2; 28. Rotating rod 2; 29. ​​Brush; 30. Guide plate; 31. Filter plate; 32. Support plate; 33. Clamping disk; 34. Fan. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0035] Example:

[0036] Please see the attached Figure 1 -Attached Figure 6 , an embodiment of the present invention provides an ink spraying device, including a device body 1, a motor 5 is installed on the right end of the device body 1 through a fixed frame, a bidirectional screw rod 6 is fixedly connected to the driving end of the motor 5, the outer wall of the bidirectional screw rod 6 is connected to a sliding sleeve 7 through a threaded sleeve, and the outer wall of the bidirectional screw rod 6 is fixedly connected to two limit frames 9, and the two limit frames 9 are connected to a rotating frame 14 at one end thereof through an adjusting component, and the rotating frame 14 is rotatably connected to the outer periphery of the sliding sleeve 7, and the bottom end of the rotating frame 14 is fixedly connected to a connecting box 15, and the bottom end of the connecting box 15 is fixedly connected to a convex plate 17, the outer wall of the convex plate 17 is connected to the mounting frame 18 through a limit assembly, the bottom end of the mounting frame 18 is fixedly connected to the nozzle 20, the right end of the equipment body 1 is installed with a motor 24 through a fixing frame, the driving end of the motor 24 is fixedly connected to a rotating rod 1 25, the inner wall of the rotating rod 1 25 is connected to a clamping plate 33 and a brush 29 through a steering assembly, the inner periphery of the equipment body 1 is fixedly connected to a support plate 32, the inner periphery of the equipment body 1 is fixedly connected to a guide plate 30, the inner wall of the guide plate 30 is fixedly connected to a filter plate 31, and the brush 29 is arranged on the top of the filter plate 31;

[0037] Specifically, motor 1 5 is started, which drives bidirectional screw 6 to rotate, driving sleeve 7 to move linearly along guide rod 8. As sleeve 7 moves, it drives slide rod 10 to move synchronously via limiter 9. The toothed plate 11 at the bottom of slide rod 10 drives flat gear 12 to rotate. Flat gear 12 meshes with half gear 13, driving rotating frame 14 to rotate, thereby adjusting the tilt angle of nozzle 20. During this process, the limit plate 19 engages with the connecting box 15, preventing the mounting bracket 18 from shaking and ensuring adjustment accuracy. Motor 2 24 is activated, and rotating rod 1 25, through the transmission of bevel gear 1 26 and bevel gear 2 27, drives rotating rod 2 28 to rotate, achieving uniform rotation of the clamping plate 33 and the object. Simultaneously, the brush 29 simultaneously cleans the surface of the filter plate 31. During the spraying process, unattached ink drips onto the support plate 32 and converges onto the filter plate 31 through the guide plate 30. The continuous rotation of the brush 29 not only prevents bubbles from clogging the filter pores but also accelerates the ink's passage through the filter plate 31. The filtered ink flows into the liquid storage tank of the device body 1 for storage. The filter plate 31 utilizes a double-layer structure of metal mesh and activated carbon to improve filtration accuracy and ink purification efficiency. After spraying is completed, motor 1 5, motor 2 24, and the spraying device are shut down in sequence. The cover plate 3 is opened again using the handle 4, and the clamping plate 33 is released to remove the object.

[0038] Among them, the sliding rod 10 is located at one end near the two limit frames 9, and the sliding rod 10 is slidably connected to the inner wall of the sliding sleeve 7. The bottom end of the sliding rod 10 is fixedly connected to the toothed plate 11, and the bottom end of the toothed plate 11 is meshedly connected to the flat gear 12. The bottom end of the flat gear 12 is meshedly connected to the half gear 13. The fixed axis of the half gear 13 is connected to the inner wall of the rotating frame 14. Among them, the limiting rod 22 is located on the inner wall of the convex plate 17, and the right end of the limiting rod 22 is fixedly connected to the bolt 21. The outer wall of the bolt 21 is threadedly connected to the inner wall of the mounting frame 18. The outer wall of the bolt 21 is provided with a gasket 23. The gasket 23 is provided at the right end of the mounting frame 18. The rear end of the mounting frame 18 is fixedly connected to the limiting plate 19. The clamping head of the limiting plate 19 is provided at the rear end of the connecting box 15. Among them, the outer wall of the rotating rod 25 is fixedly connected to the limiting plate 19. Bevel gear 1 26, the top of bevel gear 1 26 is meshedly connected with bevel gear 2 27, the inner wall of bevel gear 27 is rotatably connected with rotating rod 2 28, the outer wall of rotating rod 28 is rotatably connected to the inner wall of support plate 32, the top of rotating rod 28 is fixedly connected to the bottom end of clamping disk 33, the bottom end of rotating rod 28 is fixedly connected to the top of brush 29, the inner wall of sliding sleeve 7 is slidably connected with guide rod 8, the guide rod 8 is fixedly connected to the inner wall of equipment main body 1, the outer wall of the front side of equipment main body 1 is slidably connected with cover plate 3, the front end of cover plate 3 is fixedly connected with handle 4, the inner wall of equipment main body 1 is connected to mounting bracket 18 through connecting pipe 16, connecting pipe 16 passes through connecting box 15, the left front end of equipment main body 1 is fixedly connected with operation panel 2, and the right end of equipment main body 1 is fixedly connected with fan 34;

[0039] Specifically, by sliding the handle 4 to open the cover 3, the front opening of the device body 1 can be closed to prevent ink from splashing during spraying, and its transparent material allows real-time viewing of the internal operation status. The object is placed on the clamping plate 33, and the operation panel 2 sends a signal to control the clamping plate 33 to automatically clamp the object. After the fan 34 is started, the interior of the device can be pre-ventilated to reduce the ink volatile concentration and ensure a safe operating environment. The guide rod 8 ensures that the sleeve 7 moves smoothly without deviation. The operation panel 2 is used to set spraying parameters, monitor equipment status such as ink inventory, motor temperature, and trigger automatic programs such as clamping and fan 34 rotation. The connecting pipe 16 is used for the ink transmission channel, which passes through the connecting box 15 and the mounting bracket 18 to transport the ink in the liquid storage tank to the nozzle 20. The outer wall of the bolt 21 is provided with a butterfly plate, which can be turned without using tools. By turning the bolt 21, it gradually The stopper 22 is then released from the inner wall of the mounting frame 18 and the stopper 22 is moved into the inner wall of the convex plate 17. The washer 23 can increase the tightness and friction of the bolt 21 connection, lock the lateral position of the mounting frame 18, and prevent displacement due to vibration during spraying.

[0040] The following steps are involved:

[0041] Step 1: Slide the cover plate 3 through the handle 4, place the object to be sprayed on the clamping plate 33, and clamp the object through the clamping plate 33;

[0042] Step 2: Close the cover 3 and start the motor 5 to adjust the angle and position of the nozzle 20;

[0043] Step 3: Start the second motor 24 to drive the clamping plate 33 to rotate, thereby rotating the object, and at the same time, the brush 29 rotates the filter plate 31 to prevent the filter plate 31 from being blocked;

[0044] Step 4: Start the spraying device through the operation panel 2 to spray the object;

[0045] Step 5: After spraying is completed, the excess paint will flow through the support plate 32 to the filter plate 31 for filtration and then flow into the liquid storage tank in the device body 1;

[0046] Step 6: Open the cover 3 and remove the object from the clamping plate 33.

[0047] In step 2, the motor 15 drives the bidirectional screw 6 to rotate, so that the sleeve 7 can move linearly to adjust the position of the nozzle 20. The flat gear 12 in the sleeve 7 can rotate under the action of the tooth plate 11, thereby driving the rotating frame 14 to rotate through the half gear 13, and then adjusting the angle of the nozzle 20.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An ink spraying device, characterized in that: The invention comprises a device body (1), wherein a motor (5) is installed on the right end of the device body (1) through a fixed frame, a driving end of the motor (5) is fixedly connected to a bidirectional screw rod (6), an outer wall of the bidirectional screw rod (6) is connected to a sliding sleeve (7) through a threaded sleeve, and an outer wall of the bidirectional screw rod (6) is fixedly connected to two limit frames (9), and the two limit frames (9) are connected to a rotating frame (14) at one end thereof through an adjusting component, and the rotating frame (14) is rotatably connected to the outer periphery of the sliding sleeve (7), and a connecting box (15) is fixedly connected to the bottom end of the connecting box (15), and a convex plate (17) is fixedly connected to the outer periphery of the convex plate (17). The wall is connected to a mounting frame (18) through a limiting assembly, and the bottom end of the mounting frame (18) is fixedly connected to a nozzle (20), and the right end of the device body (1) is installed with a second motor (24) through a fixing frame, and the driving end of the second motor (24) is fixedly connected to a first rotating rod (25), and the inner wall of the first rotating rod (25) is connected to a clamping plate (33) and a brush (29) through a steering assembly. The inner periphery of the device body (1) is fixedly connected to a support plate (32), and the inner periphery of the device body (1) is fixedly connected to a guide plate (30), and the inner wall of the guide plate (30) is fixedly connected to a filter plate (31), and the brush (29) is arranged on the top of the filter plate (31).

2. The ink spraying device according to claim 1, characterized in that: The adjustment assembly includes a slide rod (10) located at one end close to the two limit frames (9), the slide rod (10) is slidably connected to the inner wall of the sliding sleeve (7), the bottom end of the slide rod (10) is fixedly connected to a tooth plate (11), the bottom end of the tooth plate (11) is meshedly connected to a flat gear (12), the bottom end of the flat gear (12) is meshedly connected to a half gear (13), and the fixed shaft of the half gear (13) is connected to the inner wall of the rotating frame (14).

3. The ink spraying device according to claim 1, characterized in that: The limiting assembly includes a limiting rod (22) located on the inner wall of the convex plate (17), a bolt (21) is fixedly connected to the right end of the limiting rod (22), the outer wall of the bolt (21) is threadedly connected to the inner wall of the mounting frame (18), a gasket (23) is provided on the outer wall of the bolt (21), and the gasket (23) is provided at the right end of the mounting frame (18).

4. The ink spraying device according to claim 1, characterized in that: The rear end of the mounting frame (18) is fixedly connected to a limiting plate (19), and a clamping head of the limiting plate (19) is arranged at the rear end of the connection box (15).

5. The ink spraying device according to claim 1, characterized in that: The steering assembly includes a bevel gear 1 (26) located on the outer wall of a rotating rod 1 (25), the top end of the bevel gear 1 (26) is meshedly connected with a bevel gear 2 (27), the inner wall of the bevel gear 2 (27) is rotatably connected with a rotating rod 2 (28), the outer wall of the rotating rod 2 (28) is rotatably connected to the inner wall of the support plate (32), the top end of the rotating rod 2 (28) is fixedly connected to the bottom end of the clamping disk (33), and the bottom end of the rotating rod 2 (28) is fixedly connected to the top end of the brush (29).

6. The ink spraying device according to claim 1, characterized in that: The inner wall of the sliding sleeve (7) is slidably connected to a guide rod (8), and the guide rod (8) is fixedly connected to the inner wall of the device body (1).

7. The ink spraying device according to claim 1, characterized in that: A cover plate (3) is slidably connected to the front outer wall of the device body (1), and a handle (4) is fixedly connected to the front end of the cover plate (3).

8. The ink spraying device according to claim 1, characterized in that: The inner wall of the device body (1) is connected to the mounting frame (18) via a connecting pipe (16), and the connecting pipe (16) passes through the connecting box (15). The left side of the front end of the device body (1) is fixedly connected to an operation panel (2), and the right end of the device body (1) is fixedly connected to a fan (34).

9. A method for spraying an ink spraying device, using the ink spraying device according to any one of claims 1 to 8, characterized in that: The following steps are involved: Step 1: Slide the cover plate (3) through the handle (4), place the object to be sprayed on the clamping plate (33), and clamp the object through the clamping plate (33); Step 2: Close the cover (3) and start the motor 1 (5) to adjust the angle and position of the nozzle (20); Step 3: Start the second motor (24) to drive the clamping plate (33) to rotate, thereby rotating the object, and at the same time, the brush (29) rotates the filter plate (31) to prevent the filter plate (31) from being blocked; Step 4: Start the spraying device through the operation panel (2) to spray the object; Step 5: After spraying is completed, the excess paint will flow through the support plate (32) to the filter plate (31) for filtration and then flow into the liquid storage tank in the device body (1); Step 6: Then open the cover (3) and remove the object from the clamping plate (33).

10. The ink spraying device according to claim 1, characterized in that: In step 2, the motor 1 (5) drives the bidirectional screw (6) to rotate, so that the sliding sleeve (7) can move linearly to adjust the position of the nozzle (20). The flat gear (12) in the sliding sleeve (7) can rotate under the action of the tooth plate (11), thereby driving the rotating frame (14) to rotate through the half gear (13), thereby adjusting the angle of the nozzle (20).