A fully automatic inkjet printer

Abstract

The present invention relates to the technical field of inkjet printers. The present invention discloses a fully automatic inkjet printer, comprising a pipeline and a frame located in the pipeline, wherein the frame comprises a guide rail, both ends of the guide rail are fixedly mounted with fixed blocks, and further comprises: a walking part used for the frame to move in the pipeline, the walking part comprises a support rod hinged with a pair of fixed blocks and a rotation angle of which is controlled by a clamping assembly mounted on the guide rail; the walking part further comprises a walking wheel rotatably mounted on the support rod, a driving motor is fixedly mounted on the support rod, a first bevel gear is fixedly mounted on the output end of the driving motor, a second bevel gear meshing with the first bevel gear is fixedly mounted on the walking wheel, the driving motor cooperates with the first bevel gear to drive the second bevel gear and the walking wheel to rotate so that the frame can be adjusted in position in the pipeline, so that the inkjet mechanism can spray codes at different positions in the pipeline, thereby improving the inkjet efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printers, and in particular to a fully automatic inkjet printer. Background Art

[0002] An inkjet printer is a software-controlled device that uses a non-contact method to mark products. It uses a nozzle to spray ink or paint onto the target surface to create a readable code or mark. Inkjet printers can be used in many different industries.

[0003] The inkjet printer can print a variety of information, such as batch number, production date, shelf life, barcode, QR code, serial number, as well as company name, brand logo and other custom information. Large pipes need to be coded using an inkjet printer after they are produced.

[0004] However, when coding on existing large pipelines, the pipelines need to be hoisted near the inkjet printer, and the printer needs to be debugged before coding. The cumbersome hoisting and coding steps affect the coding efficiency. When coding on large pipelines, there are also employees who use portable inkjet printers to code inside the pipelines. However, this coding method makes it difficult for manual workers to neatly spray the information on the pipelines. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that when coding on existing large pipelines, the large pipelines need to be hoisted near the inkjet printer, the inkjet printer needs to be debugged and then the coding needs to be sprayed, and the cumbersome hoisting and coding steps affect the coding efficiency; when coding on large pipelines, there is also the problem that employees have to hold portable inkjet printers to spray the codes inside the pipelines, but this coding method makes it difficult for manual work to neatly spray the information on the pipelines. Therefore, a fully automatic inkjet printer is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technology: a fully automatic inkjet printer: comprising a pipeline and a frame located in the pipeline, the frame comprising a guide rail, both ends of the guide rail are fixedly mounted with fixed blocks, and further comprising:

[0007] A walking part for moving the frame in the pipeline, the walking part comprising a support rod hinged to a pair of fixed blocks and a rotation angle controlled by a tightening assembly mounted on the guide rail;

[0008] The inkjet mechanism is assembled on the fixed block, and the inkjet mechanism includes a mounting block driven by a driving member to rotate around the inner wall of the pipe. A pair of fixed bars are slidably mounted on the mounting block, and a accommodating block with an inkjet printer is fixedly mounted on the fixed bar. The preferred inkjet printer model is ONE-T1, and the manual injection button therein is modified to automatic injection. A tooth groove that can cooperate with the second gear in the adjustment component is provided on the fixed bar. When the second gear rotates, it cooperates with the tooth groove to drive the fixed bar to move to enable the inkjet printer to adaptively adjust to print on the inner walls of pipes of different diameters, and cooperate with the cleaning component assembled on the accommodating block to clean the inner wall of the pipe to improve the inkjet effect.

[0009] As a further description of the above technology, a fully automatic inkjet printer:

[0010] The driving member includes a mounting sleeve fixedly mounted on a fixing block, a servo motor fixedly mounted in the mounting sleeve, an output shaft of the servo motor passes through the mounting sleeve and is slidably connected to an inner wall thereof, and the mounting block is fixedly mounted on the output shaft of the servo motor.

[0011] As a further description of the above technology, a fully automatic inkjet printer:

[0012] The walking part also includes a walking wheel rotatably mounted on a support rod, a driving motor is fixedly mounted on the support rod, a first bevel gear is fixedly mounted on the output end of the driving motor, and a second bevel gear meshing with the first bevel gear is fixedly mounted on the walking wheel.

[0013] As a further description of the above technology, a fully automatic inkjet printer:

[0014] The clamping assembly includes a mounting bracket fixedly mounted on the guide rail, a dual-axis adjustment motor is fixedly mounted on the mounting bracket, a pair of output shafts of the dual-axis adjustment motor are each provided with a threaded groove, a pair of output shafts of the dual-axis adjustment motor are each slidably mounted with a movable block, an adjustment rod hingedly connected to a support rod for rotation is provided on the movable block, and a threaded sleeve threadedly connected to the output shaft of the dual-axis adjustment motor is locked by a bolt.

[0015] As a further description of the above technology, a fully automatic inkjet printer:

[0016] The adjusting assembly includes a push rod fixedly connected to the movable block and passing through the fixed block, a positioning ring is fixedly installed on the push rod, an annular groove is provided on the positioning ring, and an arc-shaped slider is slidably connected in the annular groove, a rack is fixedly connected to the arc-shaped slider and passes through the mounting block, a first gear meshing with the rack is rotatably installed in the mounting block, and a second gear connected to the first gear through a connecting belt is rotatably connected in the mounting block.

[0017] As a further description of the above technology, a fully automatic inkjet printer:

[0018] The second gear is meshed with the tooth grooves on the fixing bar.

[0019] As a further description of the above technology, a fully automatic inkjet printer:

[0020] The cleaning assembly includes a pair of side plates fixedly mounted on the accommodating block, the side plates are provided with movable grooves for sliding connection of the movable plate, the movable plate is fixedly connected in the movable grooves by elastic members, and a cleaning block that can abut against the inner wall of the pipe is fixedly mounted on the movable plate.

[0021] As a further description of the above technology, a fully automatic inkjet printer:

[0022] The cleaning block is provided with a cavity for receiving impurities, and the cleaning block is provided with an opening communicating with the cavity.

[0023] In summary, due to the adoption of the above-mentioned technology, the fully automatic inkjet printer has the following beneficial effects:

[0024] 1. The driving motor cooperates with the first bevel gear to drive the second bevel gear and the travel wheel to rotate so that the frame can adjust its position in the pipeline, making it easier for the coding mechanism to code at different positions in the pipeline, thereby improving the coding efficiency.

[0025] 2. When inkjet printing on pipes of different diameters, in order to enable the frame to move smoothly in the pipe and improve the stability during inkjet printing, the dual-axis adjustment motor is started. When the output shaft of the dual-axis adjustment motor rotates, it cooperates with the threaded sleeve to drive a pair of movable blocks to move on the guide rail. When moving, the movable block cooperates with the adjusting rod to adjust the angle of the support rod so that the walking wheel on the support rod is against the inner wall of the pipe, thereby achieving the effect of enabling the frame to move smoothly in pipes of different diameters and improving the stability during inkjet printing. While improving adaptability, the inkjet printing efficiency is also improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It shows a schematic diagram of the overall structure provided by an embodiment of the present invention;

[0027] Figure 2 It shows a schematic structural diagram of the walking part of the present invention;

[0028] Figure 3 The present invention is shown Figure 2 Schematic diagram of the structure at A in the middle;

[0029] Figure 4 The schematic diagram of the structure of the coding mechanism in the present invention is shown;

[0030] Figure 5shows a schematic structural diagram of the driving member in the present invention;

[0031] Figure 6 The present invention is shown Figure 5 Schematic diagram of the structure at B in FIG;

[0032] Figure 7 Shows a schematic structural diagram of the adjustment component in the present invention;

[0033] Figure 8 Shows a schematic structural diagram of the cleaning component of the present invention;

[0034] Figure 9 shows a schematic structural diagram of the hollow cavity in the present invention;

[0035] Figure 10 Shows a schematic structural diagram of the cleaning block in the present invention;

[0036] Figure 11 The figure shows the structure of the cleaning block after it is rotated 180 degrees in the present invention.

[0037] Legend:

[0038] 10. Pipe; 11. Frame; 112. Fixing block;

[0039] 20. Traveling unit; 21. Support rod; 22. Traveling wheel; 23. Driving motor; 24. First bevel gear; 25. Second bevel gear;

[0040] 30. Tightening assembly; 31. Dual-axis adjustment motor; 32. Mounting bracket; 33. Movable block; 34. Threaded sleeve; 35. Adjusting rod; 36. Threaded groove;

[0041] 40. Inkjet printer mechanism; 41. Driving element; 411. Mounting sleeve; 412. Servo motor; 42. Mounting block; 43. Fixing bar; 44. Accommodating block; 45. Inkjet printer; 46. Tooth groove;

[0042] 50. Adjustment assembly; 51. Stop rod; 52. Positioning ring; 53. Rack; 54. First gear; 55. Second gear; 56. Connecting belt; 57. Annular groove; 58. Arc-shaped slider;

[0043] 60. Cleaning assembly; 61. Side panel; 62. Movable groove; 63. Elastic member; 64. Movable panel; 65. Cleaning block; 651. Cavity; 652. Opening. DETAILED DESCRIPTION

[0044] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technology of the fully automatic inkjet printer in the embodiments of the present invention. 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.

[0045] like Figure 1 - Figure 11 As shown, the present invention adopts the following technology: a fully automatic inkjet printer includes a pipeline 10 and a frame 11 located in the pipeline 10, the frame 11 includes a guide rail, and fixed blocks 112 are fixedly installed at both ends of the guide rail, and further includes:

[0046] The walking part 20 is used to move the frame 11 in the pipeline 10. The walking part 20 includes a support rod 21 hinged to a pair of fixed blocks 112 and the rotation angle of which is controlled by a tightening assembly 30 assembled on the guide rail; the walking part 20 also includes a walking wheel 22 rotatably mounted on the support rod 21, and a driving motor 23 is fixedly mounted on the support rod 21. A first bevel gear 24 is fixedly mounted on the output end of the driving motor 23, and a second bevel gear 25 meshing with the first bevel gear 24 is fixedly mounted on the walking wheel 22. The driving motor 23 cooperates with the first bevel gear 24 to drive the second bevel gear 25 and the walking wheel 22 to rotate so that the frame 11 can adjust its position in the pipeline 10, so that the coding mechanism 40 can spray codes at different positions in the pipeline 10, thereby improving the coding efficiency.

[0047] In further detail, the tightening assembly 30 includes a mounting bracket 32 ​​fixedly mounted on the guide rail, a dual-axis adjustment motor 31 is fixedly mounted on the mounting bracket 32, a pair of output shafts of the dual-axis adjustment motor 31 are provided with a threaded groove 36, a pair of threaded grooves 36 are oriented in opposite directions, a pair of output shafts of the dual-axis adjustment motor 31 are slidably mounted with a movable block 33, an adjusting rod 35 rotatably connected to the support rod 21 is hinged on the movable block 33, and a threaded sleeve 34 threadedly connected to the output shaft of the dual-axis adjustment motor 31 is fastened by a bolt; In order to enable the frame 11 to move smoothly in the pipe 10 and improve the stability during coding, the dual-axis adjustment motor 31 is started. When the output shaft of the dual-axis adjustment motor 31 rotates, it cooperates with the threaded sleeve 34 to drive a pair of movable blocks 33 to move on the guide rail. When moving, the movable block 33 cooperates with the adjusting rod 35 to adjust the angle of the support rod 21, so that the walking wheel 22 on the support rod 21 is against the inner wall of the pipe 10, thereby achieving the effect of enabling the frame 11 to move smoothly in pipes 10 of different diameters and improving the stability during coding, thereby improving the adaptability and the coding efficiency.

[0048] The inkjet coding mechanism 40 is assembled on the fixed block 112, and the inkjet coding mechanism 40 includes a mounting block 42 driven by a driving member 41 to rotate around the inner wall of the pipe 10; the driving member 41 includes a mounting sleeve 411 fixedly mounted on the fixed block 112, and a servo motor 412 is fixedly mounted in the mounting sleeve 411. The output shaft of the servo motor 412 passes through the mounting sleeve 411 and is slidably connected to the inner wall of the servo motor 412. The mounting sleeve 411 can provide support for the output shaft of the servo motor 412, thereby reducing the friction between the output shaft and the housing of the servo motor 412; the mounting block 42 is fixedly mounted on the output shaft of the servo motor 412, and a pair of fixing bars 43 are slidably mounted on the mounting block 42, and the fixing bars 43 are fixed on the fixing bars A receiving block 44 with a clamped inkjet printer 45 is fixedly installed, and the clamped inkjet printer 45 can be easily disassembled for maintenance; after the walking part 20 drives the frame 11 to move to the appropriate position, the servo motor 412 is started, and the output shaft of the servo motor 412 drives the mounting block 42 and the inkjet printer 45 in the receiving block 44 to rotate at a uniform speed around the axis of the pipe 10, and the inkjet printer 45 then sprays the information evenly and neatly around the inner wall of the pipe 10. At the same time, the servo motor 412 can also be stopped from rotating and cooperated with the walking part 20, so that the inkjet printer 45 moves radially in the pipe 10 and sprays information neatly, so that the inkjet printer 45 can adaptively spray information in different forms.

[0049] In further detail, the fixing bar 43 is provided with a tooth groove 46 that can cooperate with the second gear 55 in the adjusting assembly 50. The adjusting assembly 50 includes a push rod 51 fixedly connected to the movable block 33 and passing through the fixed block 112. A positioning ring 52 is fixedly installed on the push rod 51. The positioning ring 52 is provided with an annular groove 57, and an arc-shaped slider 58 is slidably connected in the annular groove 57. A rack 53 that passes through the mounting block 42 is fixedly connected on the arc-shaped slider 58. A first gear 54 that meshes with the rack 53 is rotatably installed in the mounting block 42. A second gear 55 that is transmission-connected to the first gear 54 through a connecting belt 56 is rotatably connected in the mounting block 42. The second gear 55 is meshed with the tooth groove 46 on the fixing bar 43. When the second gear 55 rotates, it cooperates with the tooth groove 46 to drive the fixing bar 43 to move, so that the inkjet printer 45 can adaptively adjust to print the inner wall of the pipe 10 with different diameters, and cooperates with the assembly on the accommodating block 44 The cleaning component 60 is used to clean the inner wall of the pipe 10 to improve the coding effect; the movable block 33 in the tightening component 30 can drive the push rod 51 to move when it moves on the guide rail, and when the push rod 51 moves, it drives the first gear 54 to rotate through the positioning ring 52 and the rack 53. The rack 53 cooperates with the arc slider 58 to make a circular motion around the annular groove 57, and the first gear 54 cooperates with the connecting belt 56 to drive the second gear 55 to rotate, and the fixed bar 43 is engaged with the second gear 55 through the tooth groove 46. When the movable block 33 cooperates with the adjusting rod 35 to adjust the angle of the support rod 21 in the mounting block 42, the position of the fixed bar 43 in the mounting block 42 is adaptively adjusted, so that the distance between the inkjet printer 45 in the accommodating block 44 on the fixed bar 43 and the inner wall of the pipe 10 can be adaptively changed as the support rod 21 is adjusted, so that the information can be sprayed neatly and clearly on the inner wall of the pipe 10, further improving the coding efficiency.

[0050] The cleaning assembly 60 includes a pair of side plates 61 fixedly mounted on the accommodating block 44, and a movable groove 62 for sliding connection of a movable plate 64 is opened on the side plate 61, and the movable plate 64 is fixedly connected to the movable groove 62 by an elastic member 63. A cleaning block 65 capable of abutting against the inner wall of the pipe 10 is fixedly mounted on the movable plate 64; after adjusting the maximum diameter range of the walking portion 20 to be smaller than the diameter of the pipe 10, the entire device is placed in the pipe 10, and the maximum diameter of the walking portion 20 is adjusted to abut against the inner wall of the pipe 10 by the tightening assembly 30, and the elastic member 63 in the side plate 61 is fixedly mounted on the movable plate 64. The cleaning block 65 cooperates with the movable plate 64 to make the cleaning block 65 abut against the inner wall of the pipe 10. When the accommodating block 44 rotates, the cleaning block 65 can clean the inner wall of the pipe 10 passing through and scrape off impurities. The elastic member 63 can make the cleaning block 65 better fit on the inner wall of the pipe 10, so as to prevent the inkjet printer from spraying ink on impurities during the coding process, thereby affecting the coding effect. At the same time, when printing radial bar code information, the cleaning block 65, the servo motor 412 and the walking unit 20 cooperate to scrape and clean the area to be coded multiple times before coding, so as to improve the coding effect.

[0051] In further detail, a cavity 651 for accommodating impurities is provided on the cleaning block 65, and an opening 652 connected to the cavity 651 is provided on the cleaning block 65; when cleaning the low point in the pipe 10, impurities will accumulate at the angle between the scraper and the inner wall of the pipe 10, and the accumulated impurities can enter the cavity 651 through the opening 652 and be collected, thereby preventing the accumulated impurities from sliding along the two sides of the cleaning block 65 and falling into the low point in the pipe 10 again to affect the coding process.

[0052] In further detail, a pad is provided near the opening 652 in the cavity 651 and can automatically open and close the opening 652 according to the position of the cleaning block 65 to prevent dust from overflowing from the cavity 651.

[0053] Working principle: The driving motor 23 cooperates with the first bevel gear 24 to drive the second bevel gear 25 and the travel wheel 22 to rotate so that the frame 11 can adjust its position in the pipe 10, making it easier for the coding mechanism 40 to code at different positions in the pipe 10, thereby improving the coding efficiency.

[0054] When inkjet printing is performed on pipes 10 of different diameters, in order to enable the frame 11 to move smoothly in the pipe 10 and improve the stability during inkjet printing, the dual-axis adjustment motor 31 is started. When the output shaft of the dual-axis adjustment motor 31 rotates, it cooperates with the threaded sleeve 34 to drive a pair of movable blocks 33 to move on the guide rail. When moving, the movable blocks 33 cooperate with the adjustment rod 35 to adjust the angle of the support rod 21, so that the walking wheel 22 on the support rod 21 abuts against the inner wall of the pipe 10, thereby achieving the effect of enabling the frame 11 to move smoothly in pipes 10 of different diameters and improving the stability during inkjet printing, thereby improving the adaptability and the inkjet printing efficiency.

[0055] After the walking unit 20 drives the frame 11 to move to the appropriate position, the servo motor 412 is started. The output shaft of the servo motor 412 drives the mounting block 42 and the inkjet printer 45 in the accommodation block 44 to rotate at a constant speed around the axis of the pipe 10. The inkjet printer 45 then sprays the information evenly and neatly around the inner wall of the pipe 10. At the same time, the servo motor 412 can be stopped from rotating and cooperated with the walking unit 20, so that the inkjet printer 45 moves radially in the pipe 10 and sprays the information neatly, so that the inkjet printer 45 can adaptively spray information in different forms.

[0056] When the movable block 33 in the pressing assembly 30 moves on the guide rail, it can drive the push rod 51 to move. When the push rod 51 moves, the first gear 54 is driven to rotate by cooperating with the rack 53 through the positioning ring 52. The rack 53 cooperates with the arc slider 58 to make a circular motion around the annular groove 57. The first gear 54 cooperates with the connecting belt 56 to drive the second gear 55 to rotate. The fixed bar 43 is engaged with the second gear 55 through the tooth groove 46. When the movable block 33 and the adjusting rod 35 adjust the angle of the support rod 21 in the mounting block 42, the position of the fixed bar 43 in the mounting block 42 is adaptively adjusted, thereby making the distance between the inkjet printer 45 in the accommodating block 44 on the fixed bar 43 and the inner wall of the pipe 10 adaptively change as the support rod 21 is adjusted, so that the information can be sprayed neatly and clearly on the inner wall of the pipe 10, further improving the efficiency of inkjet printing;

[0057] After adjusting the maximum diameter range of the walking part 20 to be smaller than the diameter of the pipe 10, the entire device is placed in the pipe 10, and the maximum diameter of the walking part 20 is adjusted to abut against the inner wall of the pipe 10 by the tightening component 30. The elastic member 63 in the side plate 61 cooperates with the movable plate 64 to make the cleaning block 65 abut against the inner wall of the pipe 10. When the accommodating block 44 rotates, the cleaning block 65 can clean the inner wall of the pipe 10 passing through and scrape off impurities. The elastic member 63 can make the cleaning block 65 better fit on the inner wall of the pipe 10, so as to prevent the inkjet printer from spraying ink on impurities during the coding process and affecting the coding effect. At the same time, when spraying radial bar code information, the cleaning block 65 and the servo motor 412 cooperate with the walking part 20 to scrape and clean the parts that need to be coded multiple times before coding, so as to improve the coding effect.

[0058] When cleaning the low point in the pipe 10, impurities will accumulate at the angle between the scraper and the inner wall of the pipe 10, and the accumulated impurities can enter the cavity 651 through the opening 652 and be collected, thereby preventing the accumulated impurities from sliding along the two sides of the cleaning block 65 and falling into the low point in the pipe 10 again to affect the coding process.

[0059] The above description is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes to a fully automatic inkjet printer and its inventive concept according to the technology of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fully automatic inkjet printer, comprising a pipeline (10) and a frame (11) located in the pipeline (10), the frame (11) comprising a guide rail, and fixed blocks (112) are fixedly mounted at both ends of the guide rail. It is characterized in that Also includes: A walking part (20) for moving the frame (11) in the pipeline (10), the walking part (20) comprising a support rod (21) hingedly connected to a pair of fixed blocks (112) and having a rotation angle controlled by a tightening assembly (30) mounted on a guide rail; A coding mechanism (40) mounted on a fixed block (112), the coding mechanism (40) comprising a mounting block (42) driven by a driving member (41) to rotate around the inner wall of a pipe (10), a pair of fixing bars (43) being slidably mounted on the mounting block (42), a receiving block (44) on which a coding device (45) is fixedly mounted, the fixing bar (43) being provided with a tooth groove (46) capable of cooperating with a second gear (55) in an adjusting component (50), the second gear (55) cooperating with the tooth groove (46) when rotating drives the fixing bar (43) to move so that the coding device (45) can adaptively adjust to code the inner wall of pipes (10) of different diameters, and cooperates with a cleaning component (60) mounted on the receiving block (44) to clean the inner wall of the pipe (10), thereby improving the coding effect; The driving member (41) comprises a mounting sleeve (411) fixedly mounted on a fixing block (112), a servo motor (412) being fixedly mounted in the mounting sleeve (411), an output shaft of the servo motor (412) passing through the mounting sleeve (411) and being slidably connected to an inner wall thereof, and the mounting block (42) being fixedly mounted on the output shaft of the servo motor (412); The clamping assembly (30) comprises a mounting frame (32) fixedly mounted on the guide rail, a dual-axis adjustment motor (31) being fixedly mounted on the mounting frame (32), a pair of output shafts of the dual-axis adjustment motor (31) being provided with threaded grooves (36), a pair of output shafts of the dual-axis adjustment motor (31) being slidably mounted with movable blocks (33), an adjustment rod (35) being hingedly connected to the support rod (21) for rotation, and a threaded sleeve (34) being threadedly connected to the output shaft of the dual-axis adjustment motor (31) being fastened by bolts on the movable blocks (33); The adjustment assembly (50) comprises a push rod (51) fixedly connected to the movable block (33) and penetrating the fixed block (112); a positioning ring (52) is fixedly mounted on the push rod (51); an annular groove (57) is formed on the positioning ring (52); an arc-shaped slider (58) is slidably connected in the annular groove (57); a rack (53) penetrating the mounting block (42) is fixedly connected to the arc-shaped slider (58); a first gear (54) meshing with the rack (53) is rotatably mounted in the mounting block (42); and a second gear (55) is rotatably connected in the mounting block (42) and is transmission-connected to the first gear (54) via a connecting belt (56).

2. A fully automatic inkjet printer according to claim 1, It is characterized in that The walking portion (20) further comprises a walking wheel (22) rotatably mounted on the support rod (21); a driving motor (23) is fixedly mounted on the support rod (21); a first bevel gear (24) is fixedly mounted on the output end of the driving motor (23); and a second bevel gear (25) meshing with the first bevel gear (24) is fixedly mounted on the walking wheel (22).

3. A fully automatic inkjet printer according to claim 2, It is characterized in that The second gear (55) is meshingly connected with the tooth groove (46) on the fixing bar (43).

4. A fully automatic inkjet printer according to claim 3, It is characterized in that The cleaning assembly (60) comprises a pair of side plates (61) fixedly mounted on the accommodating block (44); the side plates (61) are provided with movable grooves (62) for slidingly connecting a movable plate (64); the movable plate (64) is fixedly connected in the movable groove (62) via an elastic member (63); and a cleaning block (65) capable of abutting against the inner wall of the pipe (10) is fixedly mounted on the movable plate (64).

5. A fully automatic inkjet printer according to claim 4, It is characterized in that The cleaning block (65) is provided with a cavity (651) for accommodating impurities, and the cleaning block (65) is provided with an opening (652) communicating with the cavity (651).

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