Card printing device convenient to maintain

Abstract

The invention provides a card printing device convenient to maintain, and relates to the technical field of UV printing, the card printing device comprises a printing machine main body, a moving guide rail, a moving block, a mounting box and a spray head, the moving guide rail is fixedly mounted on the printing machine main body, the moving block is slidably mounted on the moving guide rail, the mounting box is fixedly mounted on the moving block, and a mounting groove is formed in the top of the mounting box. The invention provides a card printing device convenient to maintain, which is provided with a printing machine main body, a moving guide rail, a moving block, a mounting box, a spray head, a data line connecting plug, a guide mechanism, a protective cover, an ink pipe connector, a mounting mechanism, a side door plate, a fixing piece and a conduction mechanism. A data line connecting plug and an ink tube connector can be disassembled and assembled synchronously, operation is easy and convenient, manual operation of workers is not needed, the labor intensity of the workers is reduced, the working efficiency is improved, and meanwhile the situation that the ink tube or the data line is torn apart due to overexertion during disassembly is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of UV printing, and in particular to a card printing device that is easy to maintain. Background Art

[0002] As a product that is both entertaining and collectible, playing cards have a wide audience in the market. Their application scenarios cover many fields such as children's toys, tabletop games, and collectible cards. With the continuous growth of market demand, higher requirements are placed on the quality, efficiency, and diversity of card printing, which also promotes the continuous development of card printing equipment.

[0003] Currently, custom cards are often printed using UV. Damage to the nozzles of UV printers is a common problem during the use of the equipment. The specific causes of damage include mechanical collision or friction (during the printing process, if the media such as cards are not placed flat (such as the edge is warped) or the height of the conveying platform is abnormal, the nozzle may collide directly with the media, causing the nozzle surface to be scratched or cracked (especially since the nozzles are mostly made of ceramic or plastic with limited hardness)), foreign body wear (if there are foreign objects such as dust, metal debris, and fibers in the environment, they may be adsorbed on the nozzle surface with the airflow, and be rubbed and squeezed by the media as the nozzle moves during printing, causing the nozzle hole to be worn or blocked (especially when the UV printer is working). The distance from the media is very close, about 1-3mm), poor ink quality or incompatibility, ink drying and solidification, cleaning operation errors, static electricity and circuit problems, temperature and humidity discomfort, dust and pollution, etc. In order to ensure the printing quality of the card, it is necessary to replace the new print head. When replacing the new print head, it is necessary to open the protective cover, remove the fixing screws, and then remove the ink tube and data cable. When disassembling, it is usually done manually by staff, and excessive force may cause the ink tube and data cable to be pulled, which will cause the interface of the ink tube and data cable to loosen or the line to break. Summary of the Invention

[0004] Based on the technical problems existing in the background technology, the present invention proposes a card printing device that is easy to maintain.

[0005] The present invention provides a card printing device that is easy to maintain, comprising a printer body, a movable guide rail, a movable block, a mounting box, and a nozzle. The movable guide rail is fixedly mounted on the printer body, the movable block is slidably mounted on the movable guide rail, and the mounting box is fixedly mounted on the movable block. A mounting groove is formed on the top of the mounting box, and a positioning slot is formed through the inner wall of the bottom of the mounting groove. The nozzle is detachably inserted into the positioning slot. Data cable connectors are slidably mounted on both sides of the mounting slot, and a guide mechanism is mounted on the mounting box, which can drive the data cable connectors to be assembled and disassembled in the data interfaces on both sides of the nozzle; A protective cover is slidably mounted on the movable block, an ink tube connector is mounted on the bottom surface of the protective cover, and a mounting mechanism is mounted on the protective cover. The mounting mechanism can fix the position of the protective cover on the mounting box and can also drive the ink tube connector to be assembled and disassembled from the ink tube interface on the printhead. The mounting mechanism can also drive the guide mechanism to move; An observation window communicating with the installation slot is provided on one side of the installation box, and a side door panel for blocking the observation window is installed on the installation box; A fixing piece is installed on the installation box, and the fixing piece can fix the position of the nozzle in the positioning plug; A transmission mechanism is provided between the side door panel and the fixing member, and the transmission mechanism can convert the rotational movement of the side door panel into a fixing movement of the fixing member on the nozzle.

[0006] Preferably, the guide mechanism includes a rotating plate, a guide rod and a disassembly spring; a rotating slot is provided in the installation box, the rotating plate is rotatably installed in the rotating slot, and the guide rod is fixedly connected to the rotating plate; A movable groove is provided on one side of the data cable plug connector, a sliding shaft is fixedly connected to the inner wall of the movable groove, a driving sliding groove is provided on the guide rod, and the sliding shaft is slidably arranged in the driving sliding groove; The two ends of the disassembly spring are fixedly connected to the rotating plate and the inner wall of the rotating groove respectively.

[0007] Preferably, the mounting mechanism includes a fixed slider and a driving block; both ends of the protective cover are provided with a transverse slot, the fixed slider is slidably mounted in the transverse slot, and both inner walls of the mounting slot are provided with a fixed slot adapted to the fixed slider; The driving block is slidably mounted on the top surface of the protective cover, and the bottom of the driving block is fixedly connected to the fixed sliding block.

[0008] Preferably, the mounting mechanism further comprises a lifting slider and a lifting slide rod; a lifting slot communicating with the transverse slot is formed at the bottom of the protective cover, the lifting slider is slidably mounted in the lifting slot, and the ink tube connector is fixedly mounted on the bottom surface of the lifting slider; A driving slide groove is provided on the top of the lifting slider, the lifting slide rod is fixedly installed in the driving slide groove, an inclined slide groove is provided through the fixed slider for sliding cooperation with the lifting slide rod, and the fixed slider slides in the driving slide groove.

[0009] Preferably, when the fixed slider is inserted into the fixed slot on the inner wall of the side of the installation groove, the end of the fixed slider can push the rotating plate to rotate in the rotating groove.

[0010] Preferably, the fixing member includes a positioning pin; an inner wall of the positioning slot is provided with a receiving hole capable of receiving the positioning pin, and positioning holes adapted to the positioning pin are provided on both sides of the nozzle.

[0011] Preferably, the transmission mechanism includes a gantry, a driving inclined plane block, a movable inclined plane block and a reset member; the inner wall of the observation window is provided with a transmission slide groove that slides with the gantry, the straight rods on both sides of the gantry are respectively located on both sides of the positioning slot, the driving inclined plane block is fixedly connected to the inner side walls of the straight rods on both sides of the gantry, the mounting box is provided with a limiting slide groove that slides with the driving inclined plane block, the movable inclined plane block is fixedly connected to the end of the positioning pin, the mounting box is provided with a reset slide groove, and the inclined surface of the movable inclined plane block slides with the inclined surface of the driving inclined plane block; The reset member is used to drive the positioning pin to retract into the receiving hole.

[0012] Preferably, the reset member includes a reset spring, the reset spring is located in the reset chute, and both ends of the reset spring abut against the end inner wall of the reset chute and the movable inclined plane block respectively.

[0013] Preferably, the transmission mechanism further includes a driving spring; the driving spring is located in the transmission slide groove, and both ends of the driving spring respectively abut against the inner wall of the end of the transmission slide groove and the ends of the straight rods on both sides of the portal frame.

[0014] Preferably, the side door panel is rotatably mounted in the observation window, and the side surface of the side door panel is slidably engaged with the side surface of the gantry; When the side door panel blocks the observation window, the side of the door frame rests against one side of the side door panel, and the positioning pin is inserted into the positioning hole; When the side door panel is in a horizontal state, the side of the door frame abuts against the bottom side of the side door panel, and the positioning pin is received in the receiving hole; When the observation window is opened and the side door panel is in a vertical state, the side surface of the portal frame abuts against the other side of the side door panel, and the positioning pin is inserted into the positioning hole.

[0015] The card printing device that is easy to maintain proposed by the present invention has the following beneficial effects: through the arrangement of the printing machine body, movable guide rails, movable blocks, mounting box, nozzle, data cable connector, guide mechanism, protective cover, ink tube connector, mounting mechanism, side door panel, fixing parts and conduction mechanism, when the nozzle is replaced, the data cable connector and the ink tube connector can be disassembled and assembled simultaneously, the operation is simple and convenient, and no manual operation is required by the staff, thereby reducing the labor intensity of the staff and improving work efficiency, while reducing the occurrence of ink tubes or data cables being torn due to excessive force during disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a card printing device that is easy to maintain proposed by the present invention; Figure 2 A side cross-sectional view of a mounting box in a card printing device that is easy to maintain proposed by the present invention; Figure 3 This is a schematic diagram of a data line connector in a card printing device that is easy to maintain, as proposed by the present invention; Figure 4 This is a schematic structural diagram of a side door panel in a card printing device that is easy to maintain, as proposed by the present invention; Figure 5 A side view of the contact position between the side door panel and the gantry in a card printing device that is easy to maintain proposed by the present invention; Figure 6 This is a schematic structural diagram of a rotating plate and a guide rod in a card printing device that is easy to maintain proposed by the present invention; Figure 7 This is a schematic structural diagram of an ink tube connector, a lifting slider, and a lifting slide rod in a card printing device that is easy to maintain proposed by the present invention; Figure 8 This is a schematic structural diagram of a fixed slider and a driving block in a card printing device that is easy to maintain proposed by the present invention; Figure 9 A top cross-sectional view of a mounting box in a card printing device that is easy to maintain proposed by the present invention; Figure 10 This is a schematic structural diagram of a gantry and a driving ramp block in a card printing device that is easy to maintain proposed by the present invention; Figure 11 A card printing device that is easy to maintain proposed by the present invention Figure 9 Enlarged view of point A in the middle.

[0017] In the figure: 1. Printing machine body; 2. Moving guide rail; 3. Moving block; 4. Mounting box; 5. Print head; 6. Data cable connector; 7. Protective cover; 8. Ink tube connector; 9. Side door panel; 10. Rotating plate; 11. Guide rod; 12. Disassembly spring; 13. Fixed slider; 14. Driving block; 15. Lifting slider; 16. Lifting slide bar; 17. Inclined slide; 18. Positioning pin; 19. Door frame; 20. Driving ramp block; 21. Movable ramp block; 22. Return spring; 23. Driving spring. DETAILED DESCRIPTION

[0018] Reference Figures 1-11The present invention proposes a card printing device that is easy to maintain, including a printer body 1, a movable guide rail 2, a movable block 3, a mounting box 4 and a nozzle 5. The movable guide rail 2 is fixedly mounted on the printer body 1, the movable block 3 is slidably mounted on the movable guide rail 2, and the mounting box 4 is fixedly mounted on the movable block 3. A mounting groove is provided on the top of the mounting box 4, and a positioning slot is provided through the bottom inner wall of the mounting groove. A nozzle 5 is detachably inserted into the positioning slot. During specific operation, the card is placed on the printer body 1, and the movable guide rail 2 drives the movable block 3, the mounting box 4 and the nozzle 5 to move synchronously. During the movement of the nozzle 5, ink is sprayed onto the card for coloring, and the ink is solidified to form a pattern by irradiation with a curing lamp. In actual practice, the nozzle 5 Nozzle damage is a common problem in the use of equipment, so it needs to be replaced frequently. When replacing the current print head 5, the ink tube and data cable on the print head 5 are usually manually removed. During the removal, the ink tube or data cable may be torn due to excessive force. Therefore, when replacing the print head 5, the ink tube and data cable are disassembled and assembled by mechanical drive, thereby reducing the damage of the ink tube or data cable caused by excessive force. Data cable connectors 6 are slidably installed on both sides of the installation groove, and a guiding mechanism is installed on the installation box 4. The guiding mechanism can drive the data cable connector 6 to be disassembled and assembled in the data interfaces on both sides of the print head 5. When disassembling and assembling the data cable on the print head 5, the data cable connector 6 is driven by the guiding mechanism to move horizontally, thereby realizing the disassembly of the data cable connector 6. The protective cover 7 is installed in a sliding manner on the movable block 3, and the bottom surface of the protective cover 7 is installed with an ink tube connector 8. The protective cover 7 is installed with a mounting mechanism, which can fix the position of the protective cover 7 on the mounting box 4, and the mounting mechanism can also drive the ink tube connector 8 to be disassembled and assembled with the ink tube interface on the nozzle 5. In actual situations, the ink tube usually needs to be disassembled and assembled manually. When disassembling and assembling the protective cover 7, the protective cover 7 can be inserted into the mounting groove, and then the protective cover 7 is fixed in the mounting groove by the mounting mechanism. When installing the protective cover 7, the ink tube connector 8 can also be inserted into the ink tube interface on the nozzle 5 by the mounting mechanism, so as to realize the disassembly and assembly of the ink tube, thereby reducing the situation that the ink tube is torn. The mounting mechanism can also drive the guiding mechanism to move In actual conditions, the installation mechanism can also be used to drive the guiding mechanism to move, thereby realizing the installation of the data line connector 6. The operation is simple and convenient, and the replacement efficiency is higher than that of the traditional manual disassembly and assembly one by one. During the specific operation, an observation window connected to the installation slot is opened on one side of the installation box 4, and a side door panel 9 for blocking the observation window is installed on the installation box 4. The plugging effect of the data line connector 6 and the ink tube connector 8 can be determined through the observation window by rotating the side door panel 9 to ensure stable insertion. A fixing part is installed on the installation box 4, and the fixing part can fix the position of the nozzle 5 in the positioning insertion. A transmission mechanism is provided between the side door panel 9 and the fixing part, and the transmission mechanism can rotate the rotation of the side door panel 9 to rotate the fixing part to the fixing action of the nozzle 5.During specific operation, the position of the printhead 5 is fixed by adjusting the position of the side door panel 9. For example, when installing the printhead 5, the side door panel 9 can be rotated to a horizontal position and the printhead 5 can be inserted into the positioning slot. When installing the data cable connector 6 and the ink tube connector 8, it is convenient to check whether the data cable connector 6 and the ink tube connector 8 are installed firmly. After the installation is completed, the side door panel 9 is rotated to block the observation window to achieve a protective and dustproof effect. The structure is simple and convenient to operate.

[0019] like Figure 2 and Figure 6 The guide rod 11 is fixedly connected to the rotating plate 10, and a movable groove is provided on one side of the data line connector 6. The inner wall of the movable groove is fixedly connected with a sliding shaft, and a driving sliding groove is provided on the guide rod 11. The sliding shaft is slidably arranged in the driving sliding groove, and the two ends of the disassembly spring 12 are respectively fixedly connected to the rotating plate 10 and the inner wall of the rotating groove when the data line connector 6 is installed. When the data line connector 6 is installed, the nozzle 5 is first fixed, and the rebound effect of the disassembly spring 12 drives the rotating plate 10 and the guide rod 11 to rotate. Due to the rotation of the guide rod 11, the guide rod 11 drives the data line connector 6 to move away from the nozzle 5, so that the data line connector 6 and the data line interface fall off. The operation is simple and convenient, and the rotation range of the rotating plate 10 and the guide rod 11 is limited. Therefore, the data line connector 6 and the data line will not be excessively involved, reducing the damage of the data line by pulling.

[0020] like Figure 2 and Figure 8 As shown in , the mounting mechanism includes a fixed slider 13 and a driving block 14; both ends of the protective cover 7 are provided with a transverse groove, the fixed slider 13 is slidably installed in the transverse groove, and the inner walls on both sides of the installation groove are provided with a fixed slot adapted to the fixed slider 13, the driving block 14 is slidably installed on the top surface of the protective cover 7, and the bottom of the driving block 14 is fixedly connected to the fixed slider 13. When installing the protective cover 7, the protective cover 7 is inserted into the installation groove. When the protective cover 7 reaches the specified position, the driving block 14 is slid and the fixed slider 13 is driven by the driving block 14 to move horizontally, so that the fixed slider 13 is inserted into the fixed slot, fixing the position of the protective cover 7 in the installation groove. The operation is simple and convenient.

[0021] like Figure 2 、 Figure 7 and Figure 8As shown in , the installation mechanism also includes a lifting slider 15 and a lifting slide rod 16; a lifting groove connected to the transverse groove is provided at the bottom of the protective cover 7, the lifting slider 15 is slidably installed in the lifting groove, the ink tube connector 8 is fixedly installed on the bottom surface of the lifting slider 15, a driving groove is provided on the top of the lifting slider 15, and the lifting slide rod 16 is fixedly installed in the driving groove, and an inclined groove 17 is provided on the fixed slider 13 to slide with the lifting slide rod 16. The fixed slider 13 slides in the driving groove, and when the protective cover 7 is installed, the driving block 14 can be slid, and the driving block 1 The fixed slider 13 is driven to slide synchronously. When the fixed slider 13 slides, the inclined slot 17 on the fixed slider 13 moves synchronously, and the position of the lifting slide 16 in the inclined slot 17 changes. Since the heights of the inclined slots 17 are different at different locations, that is, the heights of the lifting slide 16 are different, the lifting slider 15 will move downward. When the lifting slider 15 moves downward, it drives the ink tube connector 8 to move downward synchronously, so that the ink tube connector 8 is plugged into the ink tube interface at the top of the printhead 5. When removing the ink tube connector 8, the fixed slider 13 can be slid back to its original position. The operation is simple and convenient.

[0022] like Figure 2 As shown in the figure, when the fixed slider 13 is inserted into the fixed slot on the inner wall of the side of the installation groove, the end of the fixed slider 13 can push the rotating plate 10 to rotate in the rotating groove. When installing the protective cover 7 and the ink tube connector 8, the rotating plate 10 can also be driven to rotate by the fixed slider 13, thereby completing the insertion of the data cable connector 6. The installation is completed in one step, the operation is simple and convenient, and the replacement efficiency is high.

[0023] like Figure 2 、 Figure 9 and Figure 11 As shown in the figure, the fixing part includes a positioning pin 18; the inner wall of the positioning slot is provided with a receiving hole that can accommodate the positioning pin 18, and both sides of the nozzle 5 are provided with positioning holes that are compatible with the positioning pin 18. When the nozzle 5 is installed and fixed, the positioning pin 18 is inserted into the positioning holes on both sides of the nozzle 5, thereby achieving the fixation of the nozzle 5, and the operation is simple and convenient.

[0024] like Figure 9 、 Figure 10 and Figure 11As shown in the figure, the transmission mechanism includes a gantry 19, a driving inclined plane block 20, a movable inclined plane block 21 and a reset member; the inner wall of the observation window is provided with a transmission slide groove that slides with the gantry 19, and the straight rods on both sides of the gantry 19 are respectively located on both sides of the positioning slot. The driving inclined plane block 20 is fixedly connected to the inner side wall of the straight rods on both sides of the gantry 19, and a limiting slide groove that slides with the driving inclined plane block 20 is provided in the installation box 4. The movable inclined plane block 21 is fixedly connected to the end of the positioning pin 18, and the installation box 4 is provided with a transmission slide groove that slides with the driving inclined plane block 20. There is a reset slide groove, and the inclined surface of the movable inclined surface block 21 slides with the inclined surface of the driving inclined surface block 20. The reset member is used to drive the positioning pin 18 to retract in the receiving hole. When the nozzle 5 is disassembled and assembled, the sliding door frame 19 is used to drive the driving inclined surface block 20 to slide synchronously. The inclined surface of the driving inclined surface block 20 and the inclined surface of the movable inclined surface block 21 slide and cooperate. When the reset member is driven to cooperate, the extension or retraction of the positioning pin 18 can be controlled, thereby realizing the disassembly and assembly of the nozzle 5, and the operation is simple and convenient.

[0025] like Figure 9 、 Figure 10 and Figure 11 As shown in the figure, the reset member includes a reset spring 22, which is located in the reset chute. The two ends of the reset spring 22 are respectively against the inner wall of the end of the reset chute and the movable inclined plane block 21. The rebound action of the reset spring 22 drives the movable inclined plane block 21 to slide in the reset chute, and the movable inclined plane block 21 drives the positioning pin 18 to move synchronously, driving the positioning pin 18 to retract in the receiving hole, thereby realizing the disassembly and assembly of the nozzle 5, and the operation is simple and convenient.

[0026] like Figure 9 、 Figure 10 and Figure 11 As shown in the figure, the transmission mechanism also includes a driving spring 23; the driving spring 23 is located in the transmission chute, and the two ends of the driving spring 23 are respectively against the inner wall of the end of the transmission chute and the ends of the straight rods on both sides of the gantry 19. The driving spring 23 drives the gantry 19 to slide and reset, and the gantry 19 drives the driving inclined plane block 20 to slide, thereby facilitating the sliding reset of the gantry 19.

[0027] like Figure 4 、 Figure 5 、 Figure 9 、 Figure 10 and Figure 11 As shown in , the side door panel 9 is rotatably mounted in the observation window, and the side surface of the side door panel 9 is slidably matched with the side surface of the door frame 19, as shown in FIG. Figure 5As shown in , the distances from various places on the side of the side door panel 9 to its rotating axis are different. When the gantry 19 abuts against various places on the side of the side door panel 9, under the rebound effect of the driving spring 23, the gantry 19 is driven to adjust. When the side door panel 9 blocks the observation window, the side of the gantry 19 abuts against one side of the side door panel 9, and the positioning pin 18 is inserted into the positioning hole. When the side door panel 9 is in a horizontal state, the side of the gantry 19 abuts against the bottom side of the side door panel 9, and the positioning pin 18 is received in the receiving hole. When the observation window is opened and the side door panel 9 is in a vertical state, the side of the gantry 19 abuts against the other side of the side door panel 9. The locating pin 18 is inserted into the locating hole. When installing the nozzle 5, the side door panel 9 is rotated to a horizontal state. The side of the side door panel 9 and the side of the gantry 19 slide together. The distances between the two sides and the bottom side of the side door panel 9 to their rotating shafts are different. The rebound effect of the driving spring 23 will drive the gantry 19 to lean against the side of the side door panel 9, thereby realizing the position of the gantry 19 in the conductive slide groove, thereby driving the position of the driving ramp block 20, controlling the installation state of the locating pin 18 to the nozzle 5. The operation is simple and convenient, and the installation status of the data cable connector 6 and the ink tube connector 8 can be observed according to actual needs to ensure that the installation connection is firm and stable.

[0028] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A card printing device that is easy to maintain, characterized in that: The printing machine comprises a main body (1), a movable guide rail (2), a movable block (3), a mounting box (4) and a nozzle (5), wherein the movable guide rail (2) is fixedly mounted on the main body (1), the movable block (3) is slidably mounted on the movable guide rail (2), the mounting box (4) is fixedly mounted on the movable block (3), a mounting groove is provided on the top of the mounting box (4), a positioning slot is provided through the inner wall of the bottom of the mounting slot, and the nozzle (5) is detachably inserted into the positioning slot; Data line connectors (6) are slidably mounted on both sides of the mounting groove, and a guide mechanism is mounted on the mounting box (4), and the guide mechanism can drive the data line connector (6) to be assembled and disassembled in the data interfaces on both sides of the nozzle (5); A protective cover (7) is slidably mounted on the movable block (3), an ink tube connector (8) is mounted on the bottom surface of the protective cover (7), and a mounting mechanism is mounted on the protective cover (7), the mounting mechanism being capable of fixing the position of the protective cover (7) on the mounting box (4), and the mounting mechanism being capable of driving the ink tube connector (8) to be assembled and disassembled from the ink tube interface on the nozzle (5); The mounting mechanism can also drive the guide mechanism to move; An observation window communicating with the installation slot is provided on one side of the installation box (4), and a side door panel (9) for blocking the observation window is installed on the installation box (4); A fixing piece is installed on the installation box (4), and the fixing piece is capable of fixing the position of the nozzle (5) in the positioning plug; A transmission mechanism is provided between the side door panel (9) and the fixing member, and the transmission mechanism is capable of converting the rotational movement of the side door panel (9) into a fixing movement of the fixing member on the nozzle (5).

2. A card printing device that is easy to maintain according to claim 1, characterized in that: The guide mechanism comprises a rotating plate (10), a guide rod (11) and a disassembly spring (12); a rotating groove is provided in the installation box (4), the rotating plate (10) is rotatably installed in the rotating groove, and the guide rod (11) is fixedly connected to the rotating plate (10); A movable groove is provided on one side of the data line plug connector 6, a sliding shaft is fixedly connected to the inner wall of the movable groove, a driving sliding groove is provided on the guide rod (11), and the sliding shaft is slidably arranged in the driving sliding groove; The two ends of the disassembly spring (12) are fixedly connected to the rotating plate (10) and the inner wall of the rotating groove, respectively.

3. The card printing device that is easy to maintain according to claim 2, characterized in that: The mounting mechanism comprises a fixed slider (13) and a driving block (14); both ends of the protective cover (7) are provided with a transverse slot, the fixed slider (13) is slidably mounted in the transverse slot, and both inner walls of the mounting slot are provided with a fixed slot adapted to the fixed slider (13); The driving block (14) is slidably mounted on the top surface of the protective cover (7), and the bottom of the driving block (14) is fixedly connected to the fixed slider (13).

4. The card printing device that is easy to maintain according to claim 3, characterized in that: The mounting mechanism further comprises a lifting slider (15) and a lifting slide rod (16); a lifting groove communicating with the transverse groove is provided at the bottom of the protective cover (7); the lifting slider (15) is slidably mounted in the lifting groove; and the ink tube connector (8) is fixedly mounted on the bottom surface of the lifting slider (15); A driving slot is provided on the top of the lifting slider (15), the lifting slider (16) is fixedly installed in the driving slot, an inclined slot (17) is provided through the fixed slider (13) and is slidably engaged with the lifting slider (16), and the fixed slider (13) slides in the driving slot.

5. The card printing device that is easy to maintain according to claim 4, characterized in that: When the fixed slider (13) is inserted into the fixed slot on the inner wall of the side of the installation slot, the end of the fixed slider (13) can push the rotating plate (10) to rotate in the rotating slot.

6. The card printing device that is easy to maintain according to claim 1, characterized in that: The fixing member includes a positioning pin (18); an inner wall of the positioning slot is provided with a receiving hole capable of receiving the positioning pin (18); and positioning holes adapted to the positioning pin (18) are provided on both sides of the nozzle (5).

7. The card printing device that is easy to maintain according to claim 6, characterized in that: The transmission mechanism includes a gantry (19), a driving inclined plane block (20), a movable inclined plane block (21) and a reset member; the inner wall of the observation window is provided with a transmission slide groove that is slidably matched with the gantry (19); the straight rods on both sides of the gantry (19) are respectively located on both sides of the positioning slot; the driving inclined plane block (20) is fixedly connected to the inner side walls of the straight rods on both sides of the gantry (19); a limiting slide groove that is slidably matched with the driving inclined plane block (20) is provided in the installation box (4); the movable inclined plane block (21) is fixedly connected to the end of the positioning pin (18); a reset slide groove is provided in the installation box (4); the inclined surface of the movable inclined plane block (21) is slidably matched with the inclined surface of the driving inclined plane block (20); The reset member is used to drive the positioning pin (18) to retract into the receiving hole.

8. The card printing device that is easy to maintain according to claim 7, characterized in that: The reset member comprises a reset spring (22), the reset spring (22) is located in the reset chute, and two ends of the reset spring (22) respectively abut against the inner wall of the end of the reset chute and the movable inclined plane block (21).

9. The card printing device that is easy to maintain according to claim 7, characterized in that: The transmission mechanism further includes a driving spring (23); the driving spring (23) is located in the transmission chute, and the two ends of the driving spring (23) respectively abut against the inner wall of the end of the transmission chute and the ends of the straight rods on both sides of the portal frame (19).

10. The card printing device that is easy to maintain according to claim 9, characterized in that: The side door panel (9) is rotatably mounted in the observation window, and the side surface of the side door panel (9) is slidably engaged with the side surface of the door frame (19); When the side door panel (9) blocks the observation window, the side of the door frame (19) abuts against one side of the side door panel (9), and the positioning pin (18) is inserted into the positioning hole; When the side door panel (9) is in a horizontal state, the side surface of the door frame (19) abuts against the bottom side of the side door panel (9), and the positioning pin (18) is received in the receiving hole; When the observation window is open and the side door panel (9) is in a vertical state, the side surface of the portal frame (19) abuts against the other side of the side door panel (9), and the positioning pin (18) is inserted into the positioning hole.

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