Ink channeling prevention printer

Abstract

The utility model relates to the technical field of printers, in particular to an ink channeling prevention printer which comprises a printer body. The ink bag is mounted on the printer body; the nozzle is communicated with the ink bag; the ink pad is slidably mounted on the printer body and can slide to abut against the nozzle, and a cavity is formed between the ink pad and the nozzle; the driving device is used for driving the ink pad to move in the direction close to or away from the nozzle; and the pipeline is connected with an ink pump, is communicated with the cavity and is used for adjusting the pressure in the cavity. The method has the effect of reducing ink channeling.

Description

Technical Field

[0001] The present application relates to the technical field of printers, and in particular to an anti-ink-channeling printer. Background Art

[0002] Water-based ink printers work by spraying the ink in the ink sac onto the paper through the nozzle. Water-based ink has a high water content and is viscous. When the printer is not in use, the temperature difference between day and night will cause "ink overflow", affecting the next printing job.

[0003] A pressure device is set at the upper end of the printer's ink sac, and the pressure inside the ink sac is automatically controlled by the pressure device. When the printer is working, it is controlled by a computer. The pressure device sprays the ink in the ink sac onto the paper through the nozzle as required to produce the effect. When the work stops, the pressure device will retain the ink in the ink sac to prevent the ink from flowing out of the nozzle.

[0004] The tiny nozzles on the nozzle are easily clogged due to the drying of ink, so an ink pad is provided. When the nozzle completes spraying, the ink pad will rise and abut against the nozzle, and there is a cavity between the ink pad and the nozzle, thereby achieving the effect of moisturizing and preventing ink clogging.

[0005] However, when the temperature drops at night, the air density in the cavity increases, and a negative pressure is generated compared to the outside world. At this time, the ink in the nozzle is sucked out. In a color printer, the ink colors in the nozzles of different nozzles are different. When inks of different colors are sucked into the cavity, the pressure in the ink sac will decrease. At this time, the pressure equipment will automatically adjust the ink sac pressure and suck in the ink. At this time, the ink sac will suck in inks of different colors, which is the ink crosstalk phenomenon.

[0006] Because of the ink bleeding phenomenon, the printed pattern will have color confusion when printing again. Utility Model Content

[0007] The purpose of the present application is to provide an anti-ink-stray printer, which can reduce the occurrence of ink-stray.

[0008] The present application provides an anti-ink-channeling printer adopting the following technical solution:

[0009] An anti-ink-channeling printer, comprising:

[0010] Printer body;

[0011] An ink bag, mounted on the printer body;

[0012] A nozzle, connected to the ink bag;

[0013] An ink pad is slidably mounted on the printer body and can slide to abut against the nozzle and form a cavity between the ink pad and the nozzle;

[0014] A driving device, used for driving the ink pad to move towards or away from the nozzle;

[0015] The pipeline is connected with the ink pump and communicated with the cavity, and is used for adjusting the pressure in the cavity.

[0016] By adopting the above technical solution, the ink pump is used to spray and evacuate air in the pipeline to adjust the air pressure in the cavity, so as to reduce the situation where the ink in the ink bag flows into the cavity.

[0017] Optionally, the printer body is fixedly connected to a plurality of guide posts and slidably connected to a mounting plate, the mounting plate is slidably connected to the plurality of guide posts, and the ink pad is mounted on the mounting plate.

[0018] By adopting the above technical solution and setting the guide column, the sliding direction of the mounting plate is limited, thereby limiting the sliding direction of the ink pad, thereby reducing the occurrence of positional deviation of the ink pad during the sliding process.

[0019] Optionally, the driving device includes an eccentric wheel, a first elastic member and a driving assembly, the driving assembly is mounted on the printer body and is used to drive the eccentric wheel to rotate eccentrically, the eccentric wheel abuts against the mounting plate and can push the mounting plate to slide along the axial direction of the guide column, the first elastic member is arranged between the mounting plate and the printer body, one end of the first elastic member acts on the mounting plate, and one end of the first elastic member acts on the printer body and can push the mounting plate to move along the axial direction of the guide column.

[0020] By adopting the above technical solution, the eccentric wheel is driven to rotate by the driving assembly, so that the eccentric wheel pushes the mounting plate to move, thereby achieving the mounting plate being away from the nozzle, and then the mounting plate is pushed by the first elastic member to abut against the nozzle again. This operation method is simple, and the overall linear movement is convenient for precise control.

[0021] Optionally, the mounting plate includes a sliding portion and a mounting portion, the sliding portion is slidably connected to the guide column, the mounting portion is detachably connected to the sliding portion, and the ink pad is mounted on the mounting portion.

[0022] By adopting the above technical solution, through the detachable connection between the sliding part and the mounting part, when the ink pad needs to be replaced, the mounting part is removed and then the ink pad is replaced, thereby reducing the large space occupied by the printer body and causing inconvenience in replacing the ink pad.

[0023] Optionally, a connecting component is provided between the mounting portion and the sliding portion, and the mounting portion and the sliding portion are detachably connected via the connecting component;

[0024] The connecting assembly includes a second elastic member, a first plug and a second plug, the mounting portion is provided with a first plug hole, the sliding portion is provided with a second plug hole, the first plug is slidably disposed in the first plug hole, and the second plug is slidably disposed in the second plug hole and can slide into the first plug hole;

[0025] The second elastic member is disposed between the inner wall of the second plug hole and the second plug pin, with one end acting on the inner wall of the second plug hole and the other end acting on the second plug pin;

[0026] The first latch and the second latch are both fixedly connected with magnets, and the first latch can be fixed to the second latch by the magnets;

[0027] The guide column is provided with a pushing component for pushing the first latch to move.

[0028] By adopting the above technical solution, the second pin is inserted into the first socket to realize the mutual connection between the mounting part and the sliding part. When the mounting part needs to be disassembled, the second pin only needs to be pushed out of the first socket. The structure is simple and easy to use.

[0029] Optionally, the pushing assembly includes a switch and a push rod, the push rod is inserted into the guide column and can slide along the radial direction of the guide column, and the switch is inserted into the guide column and can slide along the axial direction of the guide column;

[0030] An inclined surface is provided at one end of the push rod close to the switch, and the switch can abut against the inclined surface and push the push rod to slide. When the push rod corresponds to the first socket, the push rod can be inserted into the first socket and push the first latch to slide.

[0031] By adopting the above technical solution, the first latch can be pushed to move by pressing the switch, which is convenient and quick to use and convenient for disassembly of the installation part.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The ink pump is used to spray and evacuate air from the pipe to adjust the air pressure in the cavity, so as to reduce the ink in the ink bag from flowing into the cavity;

[0034] 2. By setting the guide column, the sliding direction of the mounting plate is limited, thereby limiting the sliding direction of the ink pad, reducing the occurrence of position deviation of the ink pad during the sliding process;

[0035] 3. Through the detachable connection between the sliding part and the mounting part, when the ink pad needs to be replaced, the mounting part is removed and then the ink pad is replaced, thereby reducing the large space occupied by the printer body and causing inconvenience in replacing the ink pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a schematic diagram of the overall structure of an anti-ink-channeling printer according to an embodiment of the present application.

[0037] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A.

[0038] Figure 3 It is a partial structural schematic diagram used to reflect the structure of the driving device in the embodiment of the present application.

[0039] Figure 4 It is a partial structural schematic diagram of embodiment 2 of the present application, which is used to reflect the structure of the mounting plate.

[0040] Figure 5 It is a cross-sectional structural schematic diagram of Example 2 of the present application, which is used to reflect the installation position of the pushing component.

[0041] In the figure, 1, printer body; 2, ink bag; 3, nozzle; 4, ink pad;

[0042] 5. Mounting plate; 51. Sliding portion; 511. Sliding groove; 512. First plug hole; 52. Mounting portion; 521. Sliding edge; 522. Second plug hole;

[0043] 53, connecting assembly; 531, second elastic member; 532, first latch; 533, second latch;

[0044] 54, push assembly; 541, switch; 542, push rod; 543, inclined plane;

[0045] 6. Guide column; 61. Mounting hole; 62. Blind hole; 7. Pipe; 8. Ink pump;

[0046] 9. driving device; 91. eccentric wheel; 911. first eccentric wheel; 912. second eccentric wheel; 913. connecting rod; 92. first elastic member;

[0047] 93, driving assembly; 931, driving wheel; 932, driving motor; 933, driving shaft; 934, transmission wheel; 935, transmission shaft;

[0048] 94. Transmission assembly; 941. Pulley; 942. Transmission belt. DETAILED DESCRIPTION

[0049] The following is combined with Figure 1 -Attached Figure 5, further details of this application are given.

[0050] Embodiment 1:

[0051] An anti-ink-channeling printer, referring to Figure 1 and Figure 2 , the printer body 1 and the ink capsule 2, there are several ink capsules 2, in this embodiment, there are two ink capsules 2, both of which are provided with pressure devices, and the pressure of the ink capsule 2 is controlled by the pressure devices. Each ink capsule 2 is composed of several small ink capsules 2, each small ink capsule 2 is filled with ink of different colors, and the pressure of the small ink capsule 2 is controlled by the pressure device to realize inkjet of the ink capsule 2.

[0052] The lower end of the ink sac 2 is connected to a nozzle 3, and several small ink sacs 2 are connected to the nozzle 3. A number of independent nozzle holes are arranged in the nozzle 3. Different nozzle holes are connected to different small ink sacs 2, ensuring that different colors of inks are not easily mixed during the ink spraying process of the small ink sacs 2.

[0053] The printer body 1 is provided with a driving device 9 and an ink pad 4. The ink pad 4 is slidably connected to the printer body 1. The driving device 9 is used to drive the ink pad 4 to move in a direction close to the nozzle 3 and finally abut against the nozzle 3. When the ink pad 4 abuts against the nozzle 3, there is a cavity between the ink pad 4 and the nozzle 3. The ink pad 4 is provided to moisturize the nozzle 3 and reduce the ink in the nozzle hole of the nozzle 3 solidifies and causes the nozzle hole to be blocked. Specifically, a groove is provided on the top surface of the ink pad 4. When the ink pad 4 abuts against the nozzle 3, all the nozzle holes of the nozzle 3 are in the groove, thereby forming a cavity between the ink pad 4 and the nozzle 3.

[0054] In order to reduce the occurrence of ink leakage, a pipe 7 is provided on the ink pad 4, and the pipe 7 is connected to the cavity. The pipe 7 is connected to an ink pump 8. In this embodiment, the ink pump 8 adopts an air pump. The ink pump 8 is used to spray and evacuate the pipe 7 to adjust the air pressure in the cavity, so as to reduce the ink in the ink bag 2 from flowing into the cavity.

[0055] In this embodiment, in order to reduce the positional deviation of the ink bag 2 during the movement, the printer body 1 is fixedly connected with a plurality of guide posts 6 and slidably connected with a mounting plate 5. At least four guide posts 6 are provided, and at least four guide posts 6 are distributed at four corners of the mounting plate 5. The plurality of guide posts 6 all penetrate the mounting plate 5, so that the mounting plate 5 slides along the axis direction of the guide posts 6.

[0056] There are a plurality of ink pads 4, which are respectively arranged in one-to-one correspondence with a plurality of ink sacs 2 and are all fixedly connected to the mounting plate 5. When the mounting plate 5 slides along the axial direction of the guide column 6, the ink pad 4 is driven to move toward or away from the ink sac 2. Through the mutual cooperation between the mounting plate 5 and the guide column 6, the movement of the ink pad 4 is more stable, and the occurrence of positional deviation of the ink pad 4 during the movement process is reduced.

[0057] Reference Figure 1 and Figure 3 The driving device 9 includes an eccentric wheel 91, a first elastic member 92 and a driving assembly 93. The driving assembly 93 is used to drive the eccentric wheel 91 to rotate eccentrically. The first elastic member 92 is arranged between the mounting plate 5 and the printer body 1, and can drive the mounting plate 5 to move along the axis direction of the guide column 6. The eccentric wheel 91 abuts against the mounting plate 5. When the eccentric wheel 91 rotates eccentrically, it pushes the mounting plate 5 to move along the axis direction of the guide column 6 and compresses the first elastic member 92 to separate the ink pad 4 from the nozzle 3. When the eccentric wheel 91 continues to rotate, the first elastic member 92 recovers and drives the mounting plate 5 to slide, so that the ink pad 4 abuts against the nozzle 3.

[0058] In this embodiment, the first elastic member 92 is a spring, and each guide column 6 is sleeved with one spring, and one end of the spring is fixedly connected to the mounting plate 5, and the other end is fixedly connected to the printer body 1. In other embodiments, the first elastic member 92 may also be a rubber pad, one end of the rubber pad abuts against the mounting plate 5, and the other end of the rubber pad abuts against the printer body 1.

[0059] The eccentric wheel 91 includes a first eccentric wheel 911 and a second eccentric wheel 912. In the present embodiment, two first eccentric wheels 911 and two second eccentric wheels 912 are provided. The two first eccentric wheels 911 are provided on one side of the mounting plate 5, and the two second eccentric wheels 912 are provided on the other side of the mounting plate 5. The two first eccentric wheels 911 and the two second eccentric wheels 912 are provided in one-to-one correspondence. A connecting rod 913 is provided between each first eccentric wheel 911 and the corresponding second eccentric wheel 912. The connecting rod 913 is fixedly connected to the first eccentric wheel 911 and the second eccentric wheel 912 respectively, and the connecting rod 913 and the central axis of the first eccentric wheel 911 and the second eccentric wheel 912 are staggered with each other. When the first eccentric wheel 911 rotates eccentrically, the second eccentric wheel 912 is driven to rotate eccentrically synchronously through the connecting rod 913.

[0060] A transmission assembly 94 is provided between the two first eccentric wheels 911, and the two first eccentric wheels 911 are synchronously rotated eccentrically through the transmission assembly 94. The driving assembly 93 is used to control one first eccentric wheel 911 to rotate eccentrically. At this time, one first eccentric wheel 911 rotates eccentrically, thereby controlling the other first eccentric wheel 911 to rotate eccentrically through the transmission assembly 94. The two first eccentric wheels 911 rotate, and the two second eccentric wheels 912 rotate through the connecting rod 913.

[0061] The first eccentric wheel 911 and the second eccentric wheel 912 are both in contact with the mounting plate 5 , so the first eccentric wheel 911 and the second eccentric wheel 912 push the mounting plate 5 to slide at the same time, making the sliding of the mounting plate 5 more stable.

[0062] The driving assembly 93 includes a driving wheel 931, a driving motor 932 and a driving shaft 933. The driving shaft 933 is rotatably connected to the printer body 1. One end of the driving shaft 933 is fixedly connected to the driving wheel 931, and the other end is fixedly connected to the eccentric wheel 91. The axis of the driving wheel 931 coincides with the axis of the driving shaft 933, and the axis of the eccentric wheel 91 and the axis of the driving wheel 931 are staggered from each other. The driving motor 932 drives the driving wheel 931 to rotate, so that the driving wheel 931 drives the driving shaft 933 to rotate. The rotation of the driving shaft 933 causes the eccentric wheel 91 to rotate eccentrically, thereby driving the mounting plate 5 to move.

[0063] In other embodiments, the output shaft of the driving motor 932 may be directly fixedly connected to the central axis of the driving wheel 931 , thereby driving the driving wheel 931 to rotate.

[0064] The driving assembly 93 further includes a transmission wheel 934 and a transmission shaft 935, wherein the transmission shaft 935 is rotatably connected to the printer body 1, the transmission wheel 934 is fixedly connected to the transmission shaft 935, the driving motor 932 is fixed to the printer body 1 and the side wall of the output shaft of the driving motor 932 abuts against the side wall of the transmission wheel 934, when the output shaft of the driving motor 932 rotates, the transmission wheel 934 is driven to rotate by friction, thereby driving the transmission shaft 935 to rotate. The driving wheel 931 abuts against the side wall of the transmission shaft 935, and the transmission shaft 935 rotates, driving the driving wheel 931 to rotate by friction.

[0065] In order to increase transmission stability, gears are fixedly connected to the output end of the drive motor 932, the transmission wheel 934, the transmission shaft 935, and the drive wheel 931. The gear at the output end of the drive motor 932 meshes with the gear on the transmission wheel 934, and the gear on the transmission shaft 935 meshes with the gear of the drive wheel 931 or one of them, thereby increasing transmission stability.

[0066] The transmission assembly 94 includes a transmission belt 942 and two pulleys 941. The two pulleys 941 are respectively arranged in one-to-one correspondence with the two first eccentric wheels 911 and are fixedly connected to the corresponding first eccentric wheels 911. The central axis of each pulley 941 is staggered with the central axis of the corresponding first eccentric wheel 911. The transmission belt 942 is sleeved on the two pulleys 941. The two pulleys 941 are synchronously rotated through the transmission belt 942, thereby driving the two first eccentric wheels 911 to synchronously rotate eccentrically.

[0067] The implementation principle of the embodiment of the present application is as follows: after the nozzle 3 completes inkjet, the driving motor 932 rotates, driving the eccentric wheel 91 to rotate, and at this time the first elastic member 92 recovers, pushing the mounting plate 5 to slide, so that the ink pad 4 abuts against the nozzle 3. When the printer is idle, the ink pump 8 controls the air pressure in the cavity through the pipeline 7 to reduce the ink in the ink bag 2 from dripping into the cavity.

[0068] Embodiment 2:

[0069] The structure of the present embodiment 2 is substantially the same as that of the embodiment 1, and the difference lies in the improvement of the mounting plate 5.

[0070] Reference Figure 4 and Figure 5 The mounting plate 5 includes a sliding portion 51 and a mounting portion 52. In this embodiment, two sliding portions 51 are provided. The two sliding portions 51 are respectively provided on both sides of the mounting portion 52. The sliding portion 51 is slidably connected to the guide column 6. The mounting portion 52 is detachably connected to the sliding portion 51. The ink pad 4 is fixedly connected to the mounting portion 52 by bolts. When the ink pad 4 needs to be disassembled and replaced, the mounting portion 52 can be disassembled and replaced first, and then the ink pad 4 can be disassembled and replaced, so as to reduce the situation that the printer body 1 hinders the disassembly of the disassembly during the disassembly of the ink pad 4.

[0071] A sliding groove 511 is provided on the side wall of the sliding part 51 close to the mounting part 52, and a sliding edge 521 is fixedly connected to the side wall of the mounting part 52 close to the sliding part 51. The sliding edge 521 is inserted into the sliding groove 511 and slides in the sliding groove 511. A connecting component 53 is provided between the mounting part 52 and the sliding part 51, and the mounting part 52 is detachably connected to the sliding part 51 through the connecting component 53. When the connecting component 53 is opened, the mounting part 52 can be slid out along the sliding groove 511, so that the mounting part 52 can be easily disassembled.

[0072] The connecting component 53 includes a second elastic member 531, a first pin 532 and a second pin 533. A first socket 512 is provided on the sliding edge 521, and a second socket 522 is provided on the inner wall of the sliding groove 511. The first pin 532 is slidably connected in the first socket 512, and the second pin 533 is slidably connected in the second socket 522. The second elastic member 531 is arranged between the second pin 533 and the inner wall of the second socket 522. One end of the second elastic member 531 acts on the second pin 533, and the other end of the second elastic member 531 acts on the inner wall of the second socket 522.

[0073] When the mounting portion 52 and the sliding portion 51 are assembled, the position of the first insertion hole 512 corresponds to the position of the second insertion hole 522 , and the second latch 533 can slide into the first insertion hole 512 .

[0074] The end surfaces of the first latch 532 and the second latch 533 that are close to each other are fixedly connected with magnets. When the position of the first socket 512 corresponds to the position of the second socket 522, the second elastic member 531 pushes the second latch 533 to slide, so that a part of the second latch 533 is inserted into the first socket 512 and the other part is in the second socket 522, thereby limiting the relative movement between the mounting portion 52 and the sliding portion 51.

[0075] When the mounting portion 52 needs to be disassembled, the first latch 532 is pushed so that the first latch 532 pushes the second latch 533 to move until the second latch 533 slides out of the first insertion hole 512. At this time, the mounting portion 52 is pushed so that the first latch 532 and the second latch 533 are staggered with each other, and the mounting portion 52 is disassembled.

[0076] In this embodiment, the second elastic member 531 is a spring, one end of the spring is fixedly connected to the second latch 533 , and the other end of the spring is fixedly connected to the inner wall of the second insertion hole 522 .

[0077] In order to reduce the possibility of the first latch 532 being out of engagement with the first socket 512 , a spring is provided in the first socket 512 , one end of the spring is fixedly connected to the inner wall of the first socket 512 , and the other end of the spring is fixedly connected to the first latch 532 .

[0078] A pushing assembly 54 for pushing the first latch 532 to move is provided on the guide column 6, and the pushing assembly 54 includes a switch 541 and a push rod 542. A blind hole 62 is provided on the side wall of the bottom end of the guide column 6, and a mounting hole 61 is provided on the top end of the guide column 6 along the axial direction. The mounting hole 61 is connected to the blind hole 62, and the push rod 542 is slidably set in the blind hole 62 and can slide out of the blind hole 62. The switch 541 is inserted into the mounting hole 61 and can slide in the mounting hole 61.

[0079] An inclined surface 543 is disposed at one end of the push rod 542 close to the switch 541 . The switch 541 can contact the inclined surface 543 during the sliding process and push the push rod 542 to slide out of the blind hole 62 .

[0080] When the mounting plate 5 slides to the bottom end of the guide column 6, the blind hole 62 is connected to the first plug hole 512. At this time, the switch 541 is pressed to insert the push rod 542 into the first plug hole 512 and push the first latch 532 to slide.

[0081] In order to enable the push rod 542 to reset automatically, a spring is also provided in the blind hole 62 . The spring is sleeved on the push rod 542 and one end of the spring is fixedly connected to the push rod 542 and the other end is fixedly connected to the inner wall of the blind hole 62 .

[0082] In this embodiment, in order to facilitate the disassembly of the mounting portion 52 , the pushing assembly 54 is only provided on one guide column 6 , and the connecting assembly 53 is provided at a corresponding position of the mounting plate 5 .

[0083] The implementation principle of the second embodiment of the present application is as follows: when the ink pad 4 needs to be replaced, the mounting plate 5 is first moved to the lower end of the guide column 6, at which time the blind hole 62 is connected to the first plug hole 512. The switch 541 is pressed to insert the push rod 542 into the first plug hole 512 and push the first latch 532 to move, so that the first latch 532 pushes the second latch 533 out of the first plug hole 512. Then the mounting portion 52 is slid and removed, so that the ink pad 4 can be easily removed.

[0084] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An anti-ink-channeling printer, characterized in that: include: Printer body (1); An ink bag (2) mounted on the printer body (1); A nozzle (3) connected to the ink bag (2); An ink pad (4) is slidably mounted on the printer body (1) and can slide to abut against the nozzle (3) and form a cavity between the ink pad and the nozzle (3); A driving device (9) for driving the ink pad (4) to move towards or away from the nozzle (3); The pipeline (7) is connected to the ink pump (8) and communicates with the cavity, and is used to adjust the pressure in the cavity.

2. The ink-stray prevention printer according to claim 1, characterized in that: The printer body (1) is fixedly connected to a plurality of guide columns (6) and slidably connected to a mounting plate (5); the mounting plate (5) is slidably connected to the plurality of guide columns (6); and the ink pad (4) is mounted on the mounting plate (5).

3. The ink-channeling prevention printer according to claim 2, characterized in that: The driving device (9) comprises an eccentric wheel (91), a first elastic member (92) and a driving assembly (93); the driving assembly (93) is mounted on the printer body (1) and is used to drive the eccentric wheel (91) to rotate eccentrically; the eccentric wheel (91) abuts against the mounting plate (5) and can push the mounting plate (5) to slide along the axis direction of the guide column (6); the first elastic member (92) is arranged between the mounting plate (5) and the printer body (1); one end of the first elastic member (92) acts on the mounting plate (5); one end of the first elastic member (92) acts on the printer body (1) and can push the mounting plate (5) to move along the axis direction of the guide column (6).

4. The ink-channeling prevention printer according to claim 3, characterized in that: The driving assembly (93) comprises a driving wheel (931), a driving motor (932) and a driving shaft (933); the driving shaft (933) is fixedly connected to the eccentric wheel (91) and is staggered with the axis of the eccentric wheel (91); the driving wheel (931) is fixedly connected to the driving shaft (933) and coincides with the axis of the driving shaft (933); and the driving motor (932) is used to drive the driving wheel (931) to rotate.

5. The ink-channeling prevention printer according to claim 4, characterized in that: The driving assembly (93) further comprises a transmission wheel (934) and a transmission shaft (935), wherein the transmission wheel (934) is fixedly connected to the transmission shaft (935), the transmission shaft (935) is rotatably connected to the printer body (1), the driving wheel (931) is in contact with a side wall of the transmission shaft (935), and the rotation of the transmission shaft (935) can drive the driving wheel (931) to rotate; The output shaft of the drive motor (932) abuts against the side wall of the transmission wheel (934), and the rotation of the output shaft of the drive motor (932) can drive the transmission wheel (934) to rotate.

6. The ink-channeling prevention printer according to claim 2, characterized in that: The mounting plate (5) comprises a sliding portion (51) and a mounting portion (52), the sliding portion (51) being slidably connected to the guide column (6), the mounting portion (52) being detachably connected to the sliding portion (51), and the ink pad (4) being mounted on the mounting portion (52).

7. The ink-channeling prevention printer according to claim 6, characterized in that: A connecting assembly (53) is provided between the mounting portion (52) and the sliding portion (51), and the mounting portion (52) and the sliding portion (51) are detachably connected via the connecting assembly (53); The connecting assembly (53) comprises a second elastic member (531), a first latch (532) and a second latch (533); the mounting portion (52) is provided with a first plug hole (512); the sliding portion (51) is provided with a second plug hole (522); the first latch (532) is slidably disposed in the first plug hole (512); the second latch (533) is slidably disposed in the second plug hole (522) and can slide into the first plug hole (512); The second elastic member (531) is arranged between the inner wall of the second plug hole (522) and the second plug pin (533), with one end acting on the inner wall of the second plug hole (522) and the other end acting on the second plug pin (533); The first latch pin (532) and the second latch pin (533) are both fixedly connected with magnets, and the first latch pin (532) and the second latch pin (533) can be fixed to each other via the magnets; The guide column (6) is provided with a pushing component (54) for pushing the first latch (532) to move.

8. The ink-channeling prevention printer according to claim 7, characterized in that: The pushing assembly (54) comprises a switch (541) and a push rod (542); the push rod (542) is inserted into the guide column (6) and can slide along the radial direction of the guide column (6); the switch (541) is inserted into the guide column (6) and can slide along the axial direction of the guide column (6); An inclined surface (543) is provided at one end of the push rod (542) close to the switch (541); the switch (541) can abut against the inclined surface (543) and push the push rod (542) to slide; when the push rod (542) corresponds to the first plug hole (512), the push rod (542) can be inserted into the first plug hole (512) and push the first latch (532) to slide.

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