Ink jet device capable of changing color of jetted ink marks

Abstract

The invention provides an ink-jet device capable of changing the color of jetted ink marks, and belongs to the technical field of ink-jet printing.The ink-jet device comprises a box body, a top plate is arranged at the upper end of the box body, four ink barrels are arranged on the rear side of the interior of the box body, and the front ends of the bottoms of the four ink barrels are connected with piston cylinders through ink pumping pipes; the piston cylinder is fixedly mounted on the lower surface of the top plate through a third fixing plate; through the hollow rotating shaft, the connecting block, the rotating disc, the rotating rod, the threaded rod, the moving block and the connecting shaft, the distance between the moving block and the center of the rotating disc can be adjusted at any time, so that the connecting shaft can drive the piston head to move front and back by different distances, the piston cylinder sucks different amounts of ink every time, and different colors are mixed according to the different amounts of ink; therefore, the color of sprayed ink marks is changed, jet printing of different colors is achieved, ink barrels of various different colors do not need to be arranged, arrangement of the ink barrels and nozzles is reduced, the structure is simpler, maintenance is convenient, and practicability is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of inkjet printing, and in particular relates to an inkjet device capable of changing the color of ejected ink. Background Art

[0002] The inkjet device is a key component of the inkjet equipment. It sprays ink or other liquids in the form of tiny droplets onto paper or other substrates in a specific way to achieve the output of graphic information. The working principle of the inkjet device is mainly based on electromagnetic or pressure forces. During the inkjet process, the control circuit will issue instructions to eject ink from the tiny nozzles in the nozzle through electromagnetic drive or pressure changes, forming droplets that adhere to the substrate. This process is usually very fast and accurate, and can achieve high-resolution printing effects.

[0003] In order to meet the needs of inkjetting multiple colors, the existing inkjet device is equipped with ink barrels of multiple colors and a corresponding number of inkjet heads, which makes the inkjet device occupy a large space, has a complex structure, is not easy to maintain, and is more prone to failure during use.

[0004] Therefore, we propose an inkjet device that can change the color of the ejected ink to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing inkjet device has ink barrels of multiple colors and a corresponding number of inkjet heads inside to meet the demand for inkjet of multiple colors, which makes the inkjet device occupy a large space, has a complex structure, is inconvenient to maintain, and is more prone to malfunctions during use. An inkjet device that can change the color of the sprayed ink is proposed.

[0006] The object of the present invention can be achieved by the following technical scheme: comprising a box body, wherein a top plate is arranged at the upper end of the box body, an ink barrel is arranged at the inner rear side of the box body, and four ink barrels are arranged, the bottom front ends of the four ink barrels are connected to piston cylinders through ink extraction tubes, the piston cylinders are fixedly installed on the lower surface of the top plate through a fixing plate three, the insides of the four piston cylinders are movably connected to piston heads, the rear sides of the four piston cylinders are arranged with stepping motors, the power output end of the stepping motor is transmission-connected to a motor shaft, and the circumferential surface of the motor shaft is cross-shaped. A plug-in block 1 is transmission-connected to a hollow rotating shaft, a connecting block is provided at the right end of the hollow rotating shaft, and the connecting block is transmission-connected to a turntable through a cross plug-in block 2, a rotating rod is rotatably installed in the middle of the turntable, a bevel gear 1 is provided at the right end of the rotating rod, a bevel gear 1 is meshingly connected to a bevel gear 2 at the upper end of the bevel gear 1, a threaded rod is provided at the upper end of the bevel gear 2, a moving block is threadedly connected to the circumferential surface of the threaded rod, a connecting shaft is hinged on the right side of the moving block, a piston head is hinged at the front end of the connecting shaft, and the piston head is arranged inside the piston cylinder.

[0007] As a preferred embodiment of the present invention, a motor seat and a fixing plate are provided on the lower surface of the top plate, the stepping motor is arranged inside the motor seat, an electric telescopic rod is provided inside the motor seat, and the electric telescopic rod is arranged above the stepping motor, the right end of the electric telescopic rod passes through the fixing plate and is connected with a connecting plate, an annular connecting groove is provided on the circumferential surface of the right side of the hollow shaft, the lower end of the connecting plate is movably installed inside the annular connecting groove, the hollow shaft is slidably installed inside the fixing plate, a cross plug groove is provided in the middle of the left side of the hollow shaft, and the cross plug groove matches the cross plug block.

[0008] As a preferred embodiment of the present invention, a second annular connecting groove is opened on the left side surface of the turntable, and limiting connecting rods are arranged inside the upper and lower ends of the second annular connecting groove, and the left ends of the two limiting connecting rods are fixedly connected to the right side wall of the fixed plate one.

[0009] As a preferred embodiment of the present invention, a circular plug-in slot and a cross plug-in slot 2 are provided in the middle of the turntable, and the cross plug-in slot 2 is connected to the circular plug-in slot, the cross plug-in block 2 matches the cross plug-in slot 2, a cross plug-in block 3 is provided inside the circular plug-in slot, a cross plug-in slot 3 is provided in the middle of the connecting block, and a cross plug-in block 4 is provided on the left circumferential surface of the rotating rod, and the cross plug-in block 3 and the cross plug-in block 4 both match the cross plug-in slot 3.

[0010] As a preferred embodiment of the present invention, a fixed plate 2 is provided on the right side surface of the turntable, the threaded rod is rotatably installed inside the fixed plate 2, the bevel gear 2 is arranged outside the lower end of the fixed plate 2, and the moving block is slidably installed inside the fixed plate 2.

[0011] As a preferred embodiment of the present invention, the front ends of the four groups of piston cylinders are connected to discharge pipes through connecting pipes, and the discharge pipes are arranged at the inner front end of the box body through a positioning ring, an inkjet tube is arranged at the middle front end of the discharge pipe, and an inkjet head is arranged at the front lower end of the inkjet tube.

[0012] As a preferred embodiment of the present invention, a water inlet pipe is provided at the left end of the discharge pipe, and the right side of the lower end of the water inlet pipe is connected to a water tank, the water tank is arranged inside the front end of the box body, a water injection pipe is provided at the upper right end of the water tank, the right end of the water injection pipe passes through the right side wall of the box body, a water pump is provided on the right outer wall of the water tank, the upper end of the water pump is connected to the right end of the discharge pipe through the water pump, a drain pipe is provided on the right side of the water pump, and the right end of the drain pipe passes through the right side wall of the box body.

[0013] As a preferred embodiment of the present invention, ventilation pipes are provided on the rear sides of the upper ends of the four groups of ink drawing tubes, shut-off valves are provided inside the upper ends of the four groups of ink drawing tubes, inside the four groups of ventilation pipes, and inside the upper ends of the water extraction pipes and the water inlet pipes, and a one-way valve is provided inside the upper ends of the four groups of ink drawing tubes, and the ventilation pipes are located between the one-way valves and the shut-off valves inside the ink drawing tubes.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) By setting the hollow rotating shaft, connecting block, rotating disk, rotating rod, threaded rod, moving block and connecting shaft, the distance between the moving block and the center of the rotating disk can be adjusted at any time, so that the connecting shaft can drive the piston head to move back and forth by different distances, so that the piston cylinder absorbs different amounts of ink each time, and different colors are mixed according to different amounts of ink, thereby changing the color of the ejected ink mark and realizing the printing of different colors. There is no need to set up multiple ink barrels of different colors, which reduces the setting of ink barrels and nozzles, and the structure is simpler, convenient for maintenance, and more practical;

[0016] (2) By providing a water tank, a water pump, and providing a water inlet pipe and a water extraction pipe on the left and right sides of the discharge pipe, clean water can be introduced into the discharge pipe for cleaning before switching the ink color, thereby preventing the previously unused ink from affecting the use of subsequent inks, thereby improving the subsequent printing quality. After the inkjet device is used, the discharge pipe can be cleaned to prevent the ink from remaining in the discharge pipe and drying up, thereby affecting the subsequent use quality;

[0017] (3) By arranging four groups of ink barrels inside the box, the four groups of ink barrels are black, cyan, yellow and magenta, respectively, so that the four colors can be mixed into a variety of colors without setting up more ink barrels, thereby reducing the size of the device, reducing the occupied space, and improving the flexibility in use and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a first front cutaway perspective view of the present invention;

[0021] Figure 3 For the present invention Figure 2 A magnified view of the structure at center A;

[0022] Figure 4 It is a second front cutaway perspective view of the present invention;

[0023] Figure 5 For the present invention Figure 4 A magnified view of the structure at B in the middle;

[0024] Figure 6 It is a left cutaway perspective view of the present invention;

[0025] Figure 7 For the present invention Figure 6 A magnified view of the structure at C in the middle;

[0026] Figure 8 It is a partial exploded view of the present invention.

[0027] In the figure: 1, box body; 2, top plate; 3, ink barrel; 4, ink extraction tube; 5, piston cylinder; 6, piston head; 7, stepping motor; 8, motor seat; 9, motor shaft; 10, cross plug block 1; 11, hollow shaft; 12, connecting block; 13, electric telescopic rod; 14, connecting plate; 15, annular connecting groove 1; 16, cross plug block 2; 17, cross plug groove 1; 18, turntable; 19, circular plug groove; 20, cross plug block 3; 21, cross plug groove 2; 22, annular connecting groove 2; 23, limit connecting rod ; 24. Fixed plate one; 25. Rotating rod; 26. Cross plug block four; 27. Bevel gear one; 28. Bevel gear two; 29. ​​Threaded rod; 30. Moving block; 31. Connecting shaft; 32. Fixed plate two; 33. Fixed plate three; 34. Ventilation pipe; 35. Connecting pipe; 36. Discharge pipe; 37. Inkjet pipe; 38. Water tank; 39. Water pump; 40. Water pump; 41. Water inlet pipe; 42. Drain pipe; 43. One-way valve; 44. Shut-off valve; 45. Water injection pipe; 46. Cross plug slot three; 47. Positioning ring. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Example:

[0030] See also Figure 1 - Figure 8 As shown, an inkjet device capable of changing the color of ejected ink comprises a box body 1, a top plate 2 is arranged at the upper end of the box body 1, an ink barrel 3 is arranged at the inner rear side of the box body 1, and four ink barrels 3 are arranged, wherein the four ink barrels 3 are respectively black, cyan, yellow and magenta, the black nozzle is mainly responsible for printing text, and the other three color nozzles are responsible for printing color images, and in the inkjet process, different colors are combined by setting different amounts of each color to be ejected per unit time, so that in the working process, a printing color that is closer to the color of nature can be mixed by pigment superposition, thereby changing the color of the ejected ink, making the color of the printed object more colorful;

[0031] The front ends of the bottoms of the four ink barrels 3 are connected to piston cylinders 5 through ink extraction tubes 4. The piston cylinders 5 are fixedly mounted on the lower surface of the top plate 2 through a fixing plate 3 33, so that the position of the piston cylinder 5 can be fixed, thereby facilitating the use of the piston cylinder 5. The interiors of the four piston cylinders 5 are movably connected to piston heads 6, so that ink can be drawn into the interior of the piston cylinder 5 or the ink inside the piston cylinder 5 can be pushed out when the piston heads 6 move back and forth. A motor seat 8 and a fixing plate 24 are provided on the lower surface of the top plate 2. Stepper motors 7 are provided on the rear sides of the four piston cylinders 5. The stepper motors 7 are provided on the motor seat 8. Inside, the stepper motor 7 can be fixed while allowing the stepper motor 7 to work smoothly. The power output end of the stepper motor 7 is connected to the motor shaft 9 through a coupling transmission. The circumferential surface of the motor shaft 9 is connected to the hollow shaft 11 through a cross plug block 10, so that the motor shaft 9 can drive the hollow shaft 11 to rotate while the hollow shaft 11 can move horizontally left and right on the motor shaft 9. An electric telescopic rod 13 is arranged inside the motor seat 8, and the electric telescopic rod 13 is arranged above the stepper motor 7. The right end of the electric telescopic rod 13 passes through the fixed plate 24 and is connected to the connecting plate 24. The connecting plate 14 and the circumferential surface on the right side of the hollow shaft 11 are provided with an annular connecting groove 15, and the lower end of the connecting plate 14 is movably installed in the annular connecting groove 15. The setting of the annular connecting groove 15 provides a movable space for the connecting plate 14, so that when the hollow shaft 11 rotates, it will not be affected by the connecting plate 14, and will not be separated from the connecting plate 14. When the electric telescopic rod 13 drives the connecting plate 14 to move horizontally left and right, the connecting plate 14 can smoothly drive the hollow shaft 11 to move horizontally left and right. The right end of the hollow shaft 11 is provided with a connecting block 12, and the hollow shaft 1 1 is slidably installed inside the fixed plate 124, and can limit the hollow shaft 11 without affecting the rotation of the hollow shaft 11, so that the hollow shaft 11 can stably move horizontally left and right. A cross plug slot 17 is opened in the middle of the left side of the hollow shaft 11, and the cross plug slot 17 matches the cross plug block 10, so that the cross plug block 10 can be plugged into the inside of the cross plug slot 17, so that the motor shaft 9 can be connected to the hollow shaft 11 through the cross plug block 10, and then when the motor shaft 9 rotates, it can drive the hollow shaft 11 to rotate;

[0032] It should be noted that the length of the cross-plug slot 17 is slightly larger than the length of the cross-plug block 10, which can provide a stable space for the hollow shaft 11 to move left and right, so that when the electric telescopic rod 13 drives the connecting plate 14 to move horizontally left and right, the connecting plate 14 can smoothly drive the hollow shaft 11 to move horizontally left and right on the circumferential surface of the motor shaft 9, and after the hollow shaft 11 moves horizontally left and right to stop at any place, the hollow shaft 11 is always connected to the motor shaft 9 through the cross-plug block 10, so that the motor shaft 9 can always drive the hollow shaft 11 to rotate.

[0033] The connecting block 12 is connected to the turntable 18 through the cross plug-in block 16. The left surface of the turntable 18 is provided with an annular connecting groove 22. The upper and lower ends of the annular connecting groove 22 are provided with limit connecting rods 23. The setting of the annular connecting groove 22 provides a movable space for the limit connecting rod 23, so that when the turntable 18 rotates, the limit connecting rod 23 can rotate inside the annular connecting groove 22. The left ends of the two limit connecting rods 23 are fixedly connected to the right side wall of the fixing plate 1 24. The setting of the limit connecting rod 23 can support and limit the turntable 18. A rotating rod 25 is rotatably installed in the middle of the turntable 18. A circular plug-in groove 19 and a cross plug-in groove 21 are provided in the middle of the turntable 18, and the cross plug-in groove 21 is connected to the circular plug-in groove 19. The cross plug-in block 16 matches the cross plug-in groove 21. The circular plug-in groove A cross plug block 3 20 is provided inside 19, so that the cross plug block 2 16 can be plugged into the inside of the cross plug groove 21, and the cross plug block 3 20 can be plugged into the inside of the connecting block 12, so that the hollow shaft 11 is connected to the turntable 18 through the connecting block 12, and then when the hollow shaft 11 rotates, it can smoothly drive the turntable 18 to rotate, a cross plug groove 3 46 is provided in the middle of the connecting block 12, and a cross plug block 4 26 is provided on the left circumferential surface of the rotating rod 25, and the cross plug block 3 20 and the cross plug block 4 26 are matched with the cross plug groove 3 46. The setting of the cross plug groove 3 46 can enable the hollow shaft 11 to be connected to the turntable 18 when the cross plug block 3 20 is plugged into the inside of the cross plug groove 3 46, and when the cross plug block 4 26 is plugged into the inside of the cross plug groove 3 46, the hollow shaft 11 will be connected to the rotating rod 25;

[0034] It should be noted that when the connecting block 12 is plugged into the cross plug slot 21 of the turntable 18 through the cross plug block 2 16, the hollow shaft 11 is connected to the turntable 18, and the cross plug block 4 26 on the rotating rod 25 is located on the left side of the cross plug slot 3 46 inside the connecting block 12. At this time, the hollow shaft 11 is not connected to the rotating rod 25, and when the electric telescopic rod 13 drives the connecting plate 14 to move to the left, so that the connecting plate 14 drives the hollow shaft 11 to move to the left, the connecting block 12 connected to the right side of the hollow shaft 11 will be moved out from the inside of the turntable 18 And move to the left side of the turntable 18, so that the hollow rotating shaft 11 is no longer connected to the turntable 18, and at the same time the connecting block 12 moves to the left and is plugged into the cross plug block four 26 through the cross plug slot three 46, so that the hollow rotating shaft 11 is connected to the rotating rod 25. At this time, the rotation of the hollow rotating shaft 11 will drive the rotating rod 25 to rotate, and the rotating rod 25 is rotatably installed inside the turntable 18 through the bearing. The turntable 18 also has a certain limiting support effect because the limiting connecting rod 23 has a certain limiting support effect, and the turntable 18 will not rotate with the rotating rod 25, thereby allowing the rotating rod 25 to rotate alone.

[0035] The right end of the rotating rod 25 is provided with a bevel gear 1 27, the upper end of the bevel gear 1 27 is meshedly connected with a bevel gear 28, the upper end of the bevel gear 28 is provided with a threaded rod 29, the circumferential surface of the threaded rod 29 is threadedly connected with a moving block 30, and the right side surface of the rotating disk 18 is provided with a fixed plate 2 32, the threaded rod 29 is rotatably mounted inside the fixed plate 2 32, the bevel gear 28 is arranged on the outside of the lower end of the fixed plate 2 32, and the moving block 30 is slidably mounted inside the fixed plate 2 32. The setting of the fixed plate 2 32 provides limit and installation for the threaded rod 29 and the moving block 30. The space for installation enables the threaded rod 29 to rotate smoothly and the moving block 30 to move horizontally stably. The right side of the moving block 30 is hinged with a connecting shaft 31, and the front end of the connecting shaft 31 is hinged with a piston head 6, and the piston head 6 is arranged inside the piston cylinder 5. When the rotating disk 18 drives the fixed plate 2 32 to rotate, the fixed plate 2 32, the moving block 30 and the connecting shaft 31 can drive the piston head 6 to move horizontally back and forth inside the piston cylinder 5, and then the ink can be smoothly drawn into the interior of the piston cylinder 5 or the ink inside the piston cylinder 5 can be pushed out from the front end of the piston cylinder 5.

[0036] It should be noted that when the bevel gear 1 27 drives the bevel gear 2 28 and the threaded rod 29 to rotate, the moving block 30 arranged on the threaded rod 29 will move. When the moving block 30 moves away from the bevel gear 1 27, one end of the connecting shaft 31 connected to it will move away from the center of the turntable 18. At this time, when the turntable 18 drives the moving block 30 and the connecting shaft 31 to rotate on its surface, the connecting shaft 31 will drive the piston head 6 at its front end to move back and forth a longer distance, so that the piston cylinder 5 extracts or pushes out more ink. When the moving block 30 moves close to the bevel gear 1 27, one end of the connecting shaft 31 connected to it will be close to the center of the turntable 18. At this time, when the turntable 18 drives the rear end of the connecting shaft 31 to rotate, the connecting shaft 31 will drive the piston head 6 at its front end to move back and forth a shorter distance, so that the piston cylinder 5 extracts or pushes out less ink.

[0037] The front ends of the four groups of piston cylinders 5 are connected to the discharge pipes 36 through the connecting pipes 35. The discharge pipes 36 are arranged at the front end of the box body 1 through the positioning ring 47. This structure allows the four colors of ink to be concentrated inside the discharge pipes 36, which is then convenient for centralized spraying and use. The middle front end of the discharge pipes 36 is provided with an inkjet tube 37, and the front lower end of the inkjet tube 37 is provided with an inkjet head, so that the inkjet head can spray the ink inside the discharge pipes 36 through the inkjet tube 37 to perform printing. The left end of the discharge pipe 36 is provided with a water inlet pipe 41, and the water inlet pipe 41 is provided with a water inlet pipe 41. The right side of the lower end of the pipe 41 is connected to a water tank 38, which is arranged inside the front end of the box body 1. A water injection pipe 45 is arranged on the upper right end of the water tank 38, and the right end of the water injection pipe 45 penetrates the right side wall of the box body 1. The setting of the water injection pipe 45 can inject clean water into the water tank 38 for subsequent use. A water pump 39 is arranged on the right outer wall of the water tank 38, and the upper end of the water pump 39 is connected to the right end of the discharge pipe 36 through the water pump 40. A drain pipe 42 is arranged on the right side of the water pump 39, and the right end of the drain pipe 42 penetrates the right side wall of the box body 1.

[0038] The rear sides of the upper ends of the four ink extraction tubes 4 are all provided with ventilation tubes 34. The rear sides of the upper ends of the four ink extraction tubes 4 are all provided with ventilation tubes 34. Shut-off valves 44 are all provided inside the upper ends of the four ink extraction tubes 4, inside the four ventilation tubes 34, inside the upper ends of the water extraction tubes 40 and the water inlet tubes 41. The upper ends of the four ink extraction tubes 4 are all provided with one-way valves 43. The ventilation tubes 34 are located between the one-way valves 43 and the shut-off valves 44 inside the ink extraction tubes 4. When it is necessary to switch the color of the ink to be sprayed, the shut-off valves 43 inside the ink extraction tubes 4 are closed and the shut-off valves 44 inside the ventilation tubes 34 are opened at the same time, so that the piston cylinder 5 is connected to the outside air through the ventilation tubes 34. At this time, the piston head 6 inside the piston cylinder 5 continues to work, and can squeeze out all the ink remaining inside the piston cylinder 5, so as to avoid the residual ink inside the piston cylinder 5 affecting the subsequent color ratio.

[0039] Among them, by opening the shut-off valve 44 of the water suction pipe 40 and the water inlet pipe 41, the water inside the water tank 38 can be pumped out through the water inlet pipe 41 when the water pump 39 is working, and then clean water passes through the discharge pipe 36 to clean the inside of the discharge pipe 36, and then the sewage is discharged through the water suction pipe 40 and the drain pipe 42, thereby improving the cleaning effect of the inside of the discharge pipe 36, facilitating the smooth switching of ink colors and avoiding the drying up of residual ink in the discharge pipe 36 when not in use, affecting subsequent use.

[0040] When the present invention is in use, when performing inkjet printing, the four groups of stepper motors 7 are started, the stepper motors 7 drive the motor shaft 9 and the hollow shaft 11 to rotate, the hollow shaft 11 drives the turntable 18 to rotate through the connecting block 12, and the turntable 18 drives the fixed plate 2 32 to rotate, so that the fixed plate 2 32 drives the moving block 30 and the connecting shaft 31 to rotate, so that the front end of the connecting shaft 31 drives the piston head 6 to move back and forth inside the piston cylinder 5, when the piston head 6 moves horizontally backward, the piston cylinder 5 can draw the ink inside the ink barrel 3 into the piston cylinder 5 through the ink extraction tube 4, when the piston head 6 moves horizontally forward, the ink inside the piston cylinder 5 can be pushed into the discharge tube 36 through the connecting tube 35, and then the inkjet tube 37 is opened, so that the inkjet head sprays ink to perform inkjet printing;

[0041] When the ink color needs to be changed, the stepper motor 7 is first paused, the shut-off valve 44 inside the ink extraction tube 4 is closed, and the shut-off valve 44 inside the ventilation tube 34 is opened at the same time, so that the piston cylinder 5 is connected to the outside air through the ventilation tube 34. At this time, the piston head 6 inside the piston cylinder 5 continues to work, and can squeeze out all the ink remaining in the piston cylinder 5 to prevent the residual ink in the piston cylinder 5 from affecting the subsequent color ratio. Then, the shut-off valve 44 inside the water extraction pipe 40 and the water inlet pipe 41 is opened, and the water pump 39 is started to extract the water inside the water tank 38 through the water inlet pipe 41, and then the clean water passes through the discharge pipe 36 to clean the inside of the discharge pipe 36, and then the sewage is discharged through the water extraction pipe 40 and the drain pipe 42, and at the same time, the electric telescopic rod 13 is started, and the electric telescopic rod 13 drives the connecting plate 14 and the hollow rotating shaft 11 to move horizontally to the left, so that the connecting block 12 is moved out from the inside of the turntable 18, and then the hollow The rotating shaft 11 loses the connection effect with the rotating disk 18, and the connecting block 12 is connected to the rotating rod 25 through the cross plug block 4 26. Then the stepper motor 7 is started again. The stepper motor 7 drives the rotating rod 25 to rotate through the motor shaft 9 and the hollow rotating shaft 11. The rotating rod 25 drives the bevel gear 1 27, the bevel gear 28 and the threaded rod 29 to rotate, so that the moving block 30 moves on the threaded rod 29, and then it can drive one end of the connecting shaft 31 away from the center of the rotating disk 18 or close to the center of the rotating disk 18. After adjusting the position of the connecting shaft 31, the stepper motor 7 is paused, so that the electric telescopic rod 13 drives the connecting plate 14 and the connecting block 12 to move to the left and reset, so that the hollow rotating shaft 11 is connected to the rotating disk 18 again through the connecting block 12. At this time, the stepper motor 7 is started again, so that the piston cylinder 5 supplies ink again, and then the inkjet tube 37 and the inkjet head spray ink for printing.

[0042] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An inkjet device capable of changing the color of the ink jetted out, comprising a box (1), a top plate (2) being arranged at the upper end of the box (1), an ink barrel (3) being arranged at the rear side of the interior of the box (1), and four ink barrels (3) being arranged, characterized in that: The front ends of the bottoms of the four ink barrels (3) are connected to piston cylinders (5) through ink extraction tubes (4); the piston cylinders (5) are fixedly mounted on the lower surface of the top plate (2) through a fixing plate three (33); the interiors of the four piston cylinders (5) are movably connected to piston heads (6); the rear sides of the four piston cylinders (5) are provided with stepping motors (7); the power output ends of the stepping motors (7) are transmission-connected to motor shafts (9); the circumferential surface of the motor shaft (9) is transmission-connected to a hollow rotating shaft (11) through a cross plug-in block one (10); a connecting block (12) is provided at the right end of the hollow rotating shaft (11); the connecting block (12) is connected to the hollow rotating shaft (11) through a cross plug-in block one (10); A rotating disk (18) is transmission-connected through the cross plug-in block 2 (16), a rotating rod (25) is rotatably installed in the middle of the rotating disk (18), a bevel gear 1 (27) is arranged at the right end of the rotating rod (25), the upper end of the bevel gear 1 (27) is meshingly connected with a bevel gear 2 (28), a threaded rod (29) is arranged at the upper end of the bevel gear 2 (28), a moving block (30) is threadedly connected to the circumferential surface of the threaded rod (29), the right side of the moving block (30) is hinged with a connecting shaft (31), the front end of the connecting shaft (31) is hinged with a piston head (6), and the piston head (6) is arranged inside the piston cylinder (5).

2. An inkjet device capable of changing the color of the ink jetted according to claim 1, characterized in that: The lower surface of the top plate (2) is provided with a motor seat (8) and a fixing plate (24), the stepping motor (7) is arranged inside the motor seat (8), an electric telescopic rod (13) is arranged inside the motor seat (8), and the electric telescopic rod (13) is arranged above the stepping motor (7), the right end of the electric telescopic rod (13) passes through the fixing plate (24) and is connected to the connecting plate (14), the circumferential surface on the right side of the hollow rotating shaft (11) is provided with an annular connecting groove (15), the lower end of the connecting plate (14) is movably mounted inside the annular connecting groove (15), the hollow rotating shaft (11) is slidably mounted inside the fixing plate (24), a cross plug groove (17) is provided in the middle of the left side of the hollow rotating shaft (11), and the cross plug groove (17) matches the cross plug block (10).

3. An inkjet device capable of changing the color of the ink jetted according to claim 2, characterized in that: The left side surface of the rotating disk (18) is provided with an annular connecting groove 2 (22), and the upper and lower ends of the annular connecting groove 2 (22) are provided with limit connecting rods (23), and the left ends of the two limit connecting rods (23) are fixedly connected to the right side wall of the fixing plate 1 (24).

4. The inkjet device capable of changing the color of the ink jetted according to claim 1, characterized in that: A circular plug-in groove (19) and a second cross plug-in groove (21) are provided in the middle of the rotating disk (18), and the second cross plug-in groove (21) is connected to the circular plug-in groove (19), the second cross plug-in block (16) matches the second cross plug-in groove (21), a third cross plug-in block (20) is provided inside the circular plug-in groove (19), a third cross plug-in groove (46) is provided in the middle of the connecting block (12), a fourth cross plug-in block (26) is provided on the left circumferential surface of the rotating rod (25), and the third cross plug-in block (20) and the fourth cross plug-in block (26) both match the third cross plug-in groove (46).

5. The inkjet device capable of changing the color of the ink jetted according to claim 1, characterized in that: A second fixing plate (32) is provided on the right side surface of the turntable (18), the threaded rod (29) is rotatably mounted inside the second fixing plate (32), the second bevel gear (28) is arranged outside the lower end of the second fixing plate (32), and the moving block (30) is slidably mounted inside the second fixing plate (32).

6. The inkjet device capable of changing the color of the ink jetted according to claim 1, characterized in that: The front ends of the four groups of piston cylinders (5) are connected to discharge pipes (36) via connecting pipes (35); the discharge pipes (36) are arranged at the front end of the interior of the box body (1) via a positioning ring (47); an inkjet pipe (37) is arranged at the front end of the middle part of the discharge pipe (36); and an inkjet head is arranged at the lower end of the front side of the inkjet pipe (37).

7. An inkjet device capable of changing the color of the ink jetted according to claim 6, characterized in that: A water inlet pipe (41) is provided at the left end of the discharge pipe (36), and a water tank (38) is connected to the right side of the lower end of the water inlet pipe (41). The water tank (38) is arranged inside the front end of the box body (1). A water injection pipe (45) is provided at the upper right end of the water tank (38), and the right end of the water injection pipe (45) passes through the right side wall of the box body (1). A water pump (39) is provided on the right outer wall of the water tank (38), and the upper end of the water pump (39) is connected to the inside of the right end of the discharge pipe (36) through a water pump (40). A drainage pipe (42) is provided on the right side of the water pump (39), and the right end of the drainage pipe (42) passes through the right side wall of the box body (1).

8. An inkjet device capable of changing the color of the ink jetted according to claim 7, characterized in that: A ventilation pipe (34) is provided at the rear side of the upper end of each of the four groups of ink extraction tubes (4); a shut-off valve (44) is provided inside the upper ends of each of the four groups of ink extraction tubes (4), inside the four groups of ventilation pipes (34), inside the upper ends of the water extraction pipe (40) and the water inlet pipe (41); a one-way valve (43) is provided inside the upper ends of each of the four groups of ink extraction tubes (4); and the ventilation pipe (34) is located between the one-way valve (43) and the shut-off valve (44) inside the ink extraction tube (4).

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