A printing module and a printer

Abstract

The application relates to the printing technical field, in particular to a printing module and a printer. The printing module comprises a crossbeam, a first guide rail and an inkjet device. The first guide rail is slidably arranged on the crossbeam. The inkjet device is arranged on the first guide rail. The inkjet device comprises a lifting frame and a board card assembly. The board card assembly comprises a heat dissipation plate and a control board group. The heat dissipation plate is rotatably arranged in the lifting frame. The control board group is arranged on the heat dissipation plate. The heat dissipation plate is used for dissipating heat of the control board group. The heat dissipation plate is also used for rotating to a maintenance position at least partially located outside the lifting frame, so that the control board group is at least partially exposed outside the lifting frame. The inkjet device of the embodiment can slide relative to the crossbeam and can slide to a position convenient for maintenance, so as to facilitate maintenance of the inkjet device. The control board group is arranged on the heat dissipation plate, which is beneficial to heat dissipation of the control board group and improves the problem of serious heat generation of the control board group. Meanwhile, the heat dissipation plate can rotate to the maintenance position, which is convenient for maintenance of the control board group.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of printing technology, in particular to a printing module and a printer. BACKGROUND

[0002] The printer board is one of the core components of the printer, which can control the printing speed, printing quality, paper feeding, paper discharging and other functions of the printer. It can also communicate with the computer through USB, network and other interfaces to realize the interaction between the printer and the computer.

[0003] The board is generally directly installed in the head of the printer, and the edge of the board can be directly fixed to the shell wall or support inside the head by screws. After the assembly of the parts and the arrangement of the lines in the head are completed, the board is often wrapped by the lines and parts, which increases the difficulty of disassembly when the board fails, affecting the use and maintenance of the printer. Moreover, the board generates a large amount of heat during use, causing the components on the board to overheat, affecting the normal operation of the board, and even causing the board to be damaged. SUMMARY

[0004] The embodiments of the present application aim to provide a printing module and a printer to at least solve the problem of inconvenient maintenance of the board assembly.

[0005] To solve the above technical problems, one technical scheme adopted by the embodiments of the present application is to provide a printing module, which comprises a cross beam, a first guide rail and an inkjet device. The first guide rail is slidably arranged on the cross beam. The inkjet device is arranged on the first guide rail. The inkjet device comprises a lifting frame and a board assembly. The board assembly comprises a heat sink and a control board group. The heat sink is rotatably arranged in the lifting frame. The control board group is arranged on the heat sink. The heat sink is used for dissipating heat of the control board group. The heat sink is also used for rotating to a maintenance position at least partially located outside the lifting frame, so that the control board group is at least partially exposed outside the lifting frame.

[0006] In some embodiments, one of the cross beam and the first guide rail is provided with a locking piece, and the other is provided with a clamp. The clamp is used to cooperate with the locking piece to lock the first guide rail on the cross beam.

[0007] In some embodiments, the lifting frame comprises two lifting side plates arranged in parallel with each other. The lifting side plates are provided with hinge holes. The heat sink is provided with connecting shafts at both ends. The connecting shafts at both ends of the heat sink are connected with the hinge holes of the two lifting side plates respectively, so that the heat sink is rotatably arranged in the lifting frame.

[0008] In some embodiments, the lifting side plate is provided with a first fixing hole, and the heat dissipation plate is provided with a second fixing hole, the second fixing hole is used for connecting with the first fixing hole through a fastener to lock the heat dissipation plate in a working position in the lifting frame.

[0009] In some embodiments, the inkjet device further comprises a connecting chain, two ends of the connecting chain are connected to the lifting side plate and the heat dissipation plate respectively, and the connecting chain is used for being tensioned when the heat dissipation plate rotates to the maintenance position to prevent the heat dissipation plate from continuing to rotate under the action of gravity.

[0010] In some embodiments, the control board set comprises a first circuit board, a circuit board frame and a second circuit board, the first circuit board is arranged on the heat dissipation plate, the circuit board frame is connected with the first circuit board and the second circuit board respectively to arrange the second circuit board on the heat dissipation plate, and the circuit board frame is located between the first circuit board and the second circuit board to space the first circuit board and the second circuit board.

[0011] In some embodiments, the control board set further comprises a heat conduction plate and an insulating sheet, the heat conduction plate is clamped between the first circuit board and the heat dissipation plate, and the insulating sheet is clamped between the first circuit board and the heat conduction plate.

[0012] In some embodiments, the control board set further comprises a plurality of heat conduction columns, a part of the heat conduction columns connect the first circuit board and the heat dissipation plate, and another part of the heat conduction columns connect the circuit board frame and the first circuit board.

[0013] In some embodiments, the inkjet device further comprises an ink cartridge assembly, the ink cartridge assembly comprises a cartridge body, a heating element and a temperature sensor, the cartridge body has an ink cavity, the heating element is arranged on the cartridge body and is used for heating the ink in the ink cavity, and the temperature sensor at least partially extends into the ink cavity and is used for detecting the temperature of the ink in the ink cavity.

[0014] In some embodiments, a liquid level detection hole is formed in the top of the cartridge body, the ink cartridge assembly further comprises a liquid level cover and a liquid level sensor, the liquid level cover covers the liquid level detection hole, and the liquid level sensor penetrates the liquid level cover to at least partially extend into the ink cavity.

[0015] In some embodiments, the printing module further comprises a maintenance device, the maintenance device comprises a maintenance assembly and a water spraying assembly, the maintenance assembly is used for cleaning and moisturizing the inkjet device, and the water spraying assembly comprises a water spraying strip, a plurality of water spraying holes are formed in the bottom of the water spraying strip to form a plurality of water columns to flush the maintenance assembly.

[0016] In some embodiments, the maintenance device further comprises a waste water tank; the maintenance assembly comprises a busbar and a plurality of humidification discs, a side wall of the humidification disc is provided with a first water outlet pipe, the first water outlet pipe is in communication with the humidification disc; the busbar is provided with a second water outlet pipe, the second water outlet pipe is in communication with the first water outlet pipes of the plurality of humidification discs, and the second water outlet pipe is located above the waste water tank.

[0017] To solve the above technical problems, another technical scheme adopted by the embodiments of the present application is to provide a printer, which comprises the printing module according to any one of the above.

[0018] Different from the related art, in the printing module and the printer according to the embodiments of the present application, the inkjet device can slide relative to the cross beam, so that the inkjet device can slide to a position convenient for maintenance, thereby facilitating the maintenance of the inkjet device; and the control board group is arranged on the heat dissipation plate, which is conducive to the heat dissipation of the control board group and improves the problem of serious heating of the control board group, and meanwhile the heat dissipation plate can rotate to a maintenance position at least partially located outside the lifting frame, thereby facilitating the maintenance of the control board group.

[0019] The above description is only a summary of the technical scheme of the present application, in order to more clearly understand the technical means of the present application, the embodiments can be implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0020] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like reference numerals designate similar elements in the figures and wherein the figures are not necessarily to scale as proportions of the illustrated structures can have been exaggerated or minimized for clarity.

[0021] Figure 1 is a structural schematic diagram of the printing module according to the embodiments of the present application;

[0022] Figure 2 is Figure 1 is an exploded view of the printing module in FIG. 1;

[0023] Figure 3 is Figure 2 is an exploded view of the outer frame in FIG. 1;

[0024] Figure 3A is Figure 3 is a partial enlarged view of A in FIG. 1;

[0025] Figure 4 is Figure 2 is a structural schematic diagram of the inkjet device without the outer frame and the drag chain in FIG. 1;

[0026] Figure 5 isFigure 2 Structure diagram of the inkjet device in another perspective view without the outer frame and the drag chain;

[0027] Figure 6 is Figure 5 Exploded view of the inkjet device;

[0028] Figure 6A is Figure 6 Local enlarged view of B in the inkjet device;

[0029] Figure 7 is Figure 6 Exploded view of the control board group in the inkjet device;

[0030] Figure 8 is Figure 6 Exploded view of the control board group in another perspective view;

[0031] Figure 9 is Figure 6 Structure diagram of the lifting drive assembly in cooperation with the outer side beam and the lifting beam in the inkjet device;

[0032] Figure 10 is Figure 6 Exploded view of the ink cartridge assembly in the inkjet device;

[0033] Figure 11 is Figure 6 Exploded view of the ink cartridge assembly in another perspective view;

[0034] Figure 12 is Figure 2 Structure diagram of the maintenance device in the inkjet device;

[0035] Figure 13 is Figure 12 Structure diagram of the maintenance device without the maintenance assembly in the inkjet device;

[0036] Figure 14 is the exploded view of the maintenance assembly, the waste water tank and the translation drive assembly of the embodiment of the present application;

[0037] Figure 15 is Figure 12 Structure diagram of the maintenance assembly in the inkjet device;

[0038] Figure 16 is Figure 12 Structure diagram of the water jetting assembly in the inkjet device.

[0039] The reference signs in the detailed description are as follows:

[0040] 100, print module;

[0041] 1, cross beam; 11, roller; 12, clamp;

[0042] 2, first guide rail; 21, locking piece; 22, first limiting block;

[0043] 3, inkjet device;

[0044] 31, outer frame; 311, outer side plate; 3111, second guide rail; 3112, first sliding block; 3113, limiting groove; 3114, first position sensor; 312, outer side beam; 313, filter degassing assembly; 314, protective cover;

[0045] 32, lifting frame; 321, lifting side plate; 3211, second limiting block; 3212, first baffle; 3213, hinged hole; 3214, first fixing hole; 322, lifting bottom plate; 3221, first through hole; 3222, let go of the slot; 323, lifting beam; 3231, second baffle; 324, wire arrangement groove; 3241, second through hole;

[0046] 33, nozzle;

[0047] 34, board assembly; 341, heat dissipation plate; 3411, connecting shaft; 3412, second fixing hole; 342, control board group; 3421, first circuit board; 34211, first plug-in seat; 3422, circuit board frame; 34221, bending part; 34222, gourd hole; 34223, third through hole; 3423, heat conduction column; 3424, second circuit board; 34241, second plug-in seat; 3425, heat conduction plate; 3426, insulating sheet; 3427, first shell; 3428, second shell;

[0048] 35, lifting drive assembly; 351, mounting seat; 352, connecting seat; 3521, second position sensor; 353, screw rod; 354, first motor; 355, elastic member;

[0049] 36, ink cartridge assembly; 361, cartridge body; 3611, sealing port; 3612, liquid level detection hole; 3613, temperature detection hole; 3614, air pressure pipe; 3615, ink inlet pipe; 3616, ink outlet pipe; 362, end cover; 363, liquid level cover; 3631, fourth through hole; 364, liquid level sensor; 3641, nut; 365, temperature sensor; 366, heating member; 367, air pressure valve; 3671, air inlet pipe; 3672, air outlet pipe;

[0050] 37, drag chain;

[0051] 4, maintenance device;

[0052] 41, support assembly; 411, mounting beam; 4111, third position sensor; 412, connecting beam; 413, third guide rail; 414, second sliding block; 415, wastewater tank; 4151, liquid discharge pipe; 416, liquid collection tank;

[0053] 42. The translation drive assembly; 421. Belt wheel; 422. Drive belt; 423. Second motor;

[0054] 43. The maintenance assembly; 431. Humidifying disc; 4311. Third baffle; 4312. Humidifying groove; 4313. Sealing convex rib; 4314. First water outlet pipe; 432. Connecting piece; 433. Scraper; 434. Elastic humidifying piece; 435. Busbar; 4351. First water inlet pipe; 4352. Second water outlet pipe;

[0055] 44. The water spraying assembly; 441. Second water inlet pipe; 442. Water spraying strip; 4421. Water spraying hole. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application. It should be noted that, if there is no conflict, the various features in the embodiments of the present application can be combined with each other, and all within the scope of protection of the present application. In addition, although the functional modules are divided in the device schematic diagram, and the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in a different order from the module division in the device schematic diagram or the order in the flowchart.

[0057] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the description and the claims herein and the above description of drawings herein use the term "including" and "comprising," along with their derivatives, to mean "including but not limited to," "comprising but not limited to" and "including but not limited to," respectively, to be consistent with the use of these terms herein, as well as in the description and claims of related applications.

[0058] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0059] In the description of the embodiments of the present application, the terms "first", "second" and the like are used to distinguish between similar objects, and are not used to limit the scope of the present application. In the description of the embodiments of the present application, the term "multiple" means two or more, unless otherwise explicitly specified.

[0060] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to limit the present application. The term "and / or" used in the present application includes any and all combinations of one or more of the associated listed items.

[0061] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0062] To solve the above technical problems, the embodiments of the present application provide a printing module 100, as shown in Figure 1 and Figure 2 The printing module 100 includes a cross beam 1, a first guide rail 2, an inkjet device 3 and a maintenance device 4. The cross beam 1 is used to be mounted on a printing platform, the printing platform is used to support and transport a printing medium, the first guide rail 2 is slidably arranged on the cross beam 1, the inkjet device 3 is arranged on the first guide rail 2, so that the inkjet device 3 can slide relative to the cross beam 1 and the printing platform. The maintenance device 4 is used to maintain the inkjet device 3, for example, to clean and moisturize the nozzles 33 of the inkjet device 3. The maintenance device 4 can be arranged on the printing platform or the cross beam 1.

[0063] When the inkjet device 3 needs to print, the inkjet device 3 can be slid to directly above the printing platform to print. It should be noted that the printing platform is generally large, and when the inkjet device 3 is located directly above the printing platform, it is difficult for maintenance personnel to approach the inkjet device 3, thereby making it inconvenient to maintain the inkjet device 3. In the present application, when the inkjet device 3 needs to be maintained, the inkjet device 3 can be slid away from directly above the printing platform, so that the maintenance personnel can easily approach the inkjet device 3, thereby facilitating the maintenance of the inkjet device 3.

[0064] For the above cross beam 1, as shown in Figure 1 and Figure 2As shown, the cross beam 1 is cuboid, the number of cross beams 1 is two, and the two cross beams 1 are parallel and horizontally arranged. The cross beam 1 extends along the first direction X, which can be understood as the horizontal direction. Along the first direction X, the length of the cross beam 1 is greater than the length of the inkjet device 3, so as to stably support the inkjet device 3. The opposite side of each cross beam 1 is provided with a plurality of rollers 11, and the rollers 11 are arranged in two rows on each cross beam 1. The two rows of rollers 11 clamp the first guide rail 2, so as to slidably arrange the first guide rail 2 on the cross beam 1.

[0065] For the above-mentioned first guide rail 2, as shown in Figure 1 and Figure 2 , the first guide rail 2 is cuboid. It can be understood that the first guide rail 2 is parallel to the cross beam 1, and the number of the first guide rail 2 is two, and the two guide rails are respectively connected with the two cross beams 1. Among them, along the first direction X, the length of the first guide rail 2 is greater than the length of the cross beam 1, so that the first guide rail 2 can stably slide on the cross beam 1, and the length of the first guide rail 2 is preferably twice or more than the length of the cross beam 1, so that the inkjet device 3 can completely slide away from above the printing platform, and the maintenance of the inkjet device 3 is facilitated.

[0066] In some embodiments, as shown in Figure 2 , the cross beam 1 is provided with a clamp 12, and the first guide rail 2 is provided with a locking piece 21. The clamp 12 can be a quick clamp 12, and the clamp 12 is used to clamp the locking piece 21, so that the cross beam 1 tightly abuts against the locking piece 21, thereby locking the first guide rail 2 on the cross beam 1, improving the problem that the inkjet device 3 accidentally slides relative to the cross beam 1 when the inkjet device 3 is working, and ensuring the normal printing work. It can be understood that the positions of the locking piece 21 and the clamp 12 can be interchanged, for example, the clamp 12 is arranged on the first guide rail 2, and the locking piece 21 is arranged on the cross beam 1. Alternatively, the locking piece 21 can be directly arranged on the inkjet device 3.

[0067] In some embodiments, as shown in Figure 2 , the first guide rail 2 is provided with a first limiting block 22 at the end away from the locking piece 21. When the cross beam 1 slides relative to the first guide rail 2 to the end of the first guide rail 2, the first limiting block 22 abuts against the end face of the cross beam 1, so as to prevent the cross beam 1 from continuing to slide relative to the first guide rail 2, thereby improving the problem that the first guide rail 2 slides off the cross beam 1.

[0068] For the above-mentioned inkjet device 3, as shown in Figure 2As shown, the inkjet device 3 comprises an outer frame 31, a lifting frame 32, a nozzle head 33, a board assembly 34, a lifting driving assembly 35, an ink cartridge assembly 36 and a drag chain 37. The outer frame 31 is arranged on the first guide rail 2, the lifting frame 32 is arranged on the outer frame 31 in a slidable manner, the nozzle head 33, the board assembly 34 and the ink cartridge assembly 36 are arranged on the lifting frame 32, the lifting driving assembly 35 is used to drive the lifting frame 32 to slide up and down relative to the outer frame 31, and the drag chain 37 is used to bind the cable.

[0069] For the outer frame 31, as shown in Figure 3 the outer frame 31 comprises two outer side plates 311, three outer side beams 312, a filter degassing assembly 313 and a protective cover 314. The two outer side plates 311 are arranged in parallel and spaced apart, and each of the two outer side plates 311 is perpendicular to the horizontal plane. The two ends of each outer side beam 312 are connected with the two outer side plates 311 respectively to form a frame structure, which not only can mount the lifting frame 32, but also is open to facilitate maintenance of the lifting frame 32, the nozzle head 33, the lifting driving assembly 35, the board assembly 34 and the ink cartridge assembly 36 in the outer frame 31. The two outer side beams 312 are connected with the two first guide rails 2 respectively to connect the outer frame 31 with the first guide rail 2.

[0070] For the outer side plate 311, as shown in Figure 3 the opposite side of each of the two outer side plates 311 is provided with a second guide rail 3111 extending along a second direction Z, the second direction Z is a vertical direction, and a first sliding block 3112 is slidably connected on the second guide rail 3111, and the first sliding block 3112 is connected with the lifting frame 32 to slidably connect the lifting frame 32 with the outer frame 31. Optionally, as shown in Figure 3 the locking member 21 is mounted on the outer side plate 311.

[0071] For the filter degassing assembly 313, as shown in Figure 3 the filter degassing assembly 313 is arranged on the side of one of the outer side plates 311 away from the other outer side plate 311, and the filter degassing assembly 313 is used to filter and degas the ink, which is conducive to improving the printing effect. As shown in Figure 2 and Figure 3 the protective cover 314 is arranged on the outer side plate 311 and accommodates the filter degassing assembly 313 in the space formed by the protective cover 314 and the outer side plate 311 to protect the filter degassing assembly 313.

[0072] For the lifting frame 32, as shown in Figures 4-6As shown, the lifting frame 32 comprises two lifting side plates 321, a lifting bottom plate 322 and a lifting beam 323. The two lifting side plates 321 are parallel and spaced apart, and both are perpendicular to the horizontal plane. The two ends of the lifting bottom plate 322 are connected to the bottom ends of the two lifting side plates 321, and the lifting beam 323 is connected to the two lifting side plates 321, so as to form a frame structure, which not only can install the nozzle 33, the board card assembly 34 and the ink cartridge assembly 36, but also facilitates the maintenance of the nozzle 33, the board card assembly 34 and the ink cartridge assembly 36 installed therein.

[0073] For the above-mentioned lifting side plate 321, as shown in Figures 4-6 the side of the two lifting side plates 321 away from each other is provided with a second limiting block 3211, and please refer to Figure 3 and Figure 3A the two outer side plates 311 are provided with a limiting groove 3113, and the second limiting block 3211 is at least partially located in the limiting groove 3113, so as to limit the range of the lifting frame 32 sliding up and down relative to the outer frame 31, and improve the problem of collision between the lifting frame 32 and the nozzle 33, the board card assembly 34 and the ink cartridge assembly 36 on the lifting frame 32 and the outer frame 31. Alternatively, each lifting side plate 321 is provided with two second limiting blocks 3211, and each outer side plate 311 is provided with two limiting grooves 3113.

[0074] Further, as shown in Figure 5 and Figure 6 the side of the lifting side plate 321 facing the outer side plate 311 is provided with a first blocking piece 3212, and please refer to Figure 3 and Figure 3A the side of the outer side plate 311 away from the lifting side plate 321 is provided with a first position sensor 3114, and the first blocking piece 3212 passes through the limiting groove 3113, and the movement path of the first blocking piece 3212 is at least partially located in the detection area of the first position sensor 3114, so as to detect the position of the lifting frame 32 sliding relative to the outer frame 31. Wherein, the detection path refers to the path preset by the position sensor for detecting the blocking piece. Alternatively, the first position sensor 3114 is an optical sensor, and the first blocking piece 3212 triggers the first position sensor 3114 by shielding the light emitted from the emitting end to the receiving end of the first position sensor 3114.

[0075] For the above-mentioned lifting bottom plate 322, as shown in Figure 5As shown, the number of the lifting bottom plates 322 is two, the two lifting bottom plates 322 are arranged side by side, and a gap is left between the two lifting bottom plates 322. Further, the included angle between the two lifting bottom plates 322 is less than 180 degrees, and the two lifting bottom plates 322 are arranged in an inverted “V” shape, so that the two lifting bottom plates 322 are more easily fitted into the upwardly arched and taut printing medium. In other embodiments, the number of the lifting bottom plates 322 can also be one or three or more.

[0076] The lifting bottom plate 322 is provided with a first through hole 3221, and the nozzle 33 is installed above the lifting bottom plate 322 and extends downward into the first through hole 3221 to print the printing medium below the lifting bottom plate 322. Optionally, the bottom surface of the nozzle 33 is flush with the bottom surface of the lifting bottom plate 322. Among them, a plurality of nozzles 33 are arranged in the first direction X and staggered in the third direction Y, and the third direction Y is perpendicular to the first direction X and is a horizontal direction.

[0077] In some embodiments, as shown in Figures 4-6 The lifting frame 32 also includes a wire management groove 324, and the two ends of the wire management groove 324 are connected with the two lifting side plates 321 respectively. The wire management groove 324 is in the shape of a rectangular groove, and the wire management groove 324 is used to accommodate the cable between the board card assembly 34 and the nozzle 33, and to improve the problem of cable disorder and interference with the up and down sliding of the lifting frame 32 relative to the outer frame 31. Further, as shown in Figure 6 The side wall of the wire management groove 324 is provided with a plurality of second through holes 3241, and the second through holes 3241 are used for the cable to pass through, so as to fix the cable.

[0078] For the above-mentioned board card assembly 34, as shown in Figure 5 and Figure 6 The board card assembly 34 includes a heat dissipation plate 341 and a control board group 342, the heat dissipation plate 341 is arranged on the lifting frame 32, and the number of the control board group 342 is multiple, and the multiple control board groups 342 are arranged on the opposite sides of the heat dissipation plate 341 respectively. The heat dissipation plate 341 is used to dissipate heat for the control board group 342, and to improve the problem that the control board group 342 is seriously heated and affects the normal work of the control board group 342. Optionally, the heat dissipation plate 341 is a water-cooled plate, and the water-cooled plate is provided with a water inlet and a water outlet.

[0079] For the above-mentioned heat dissipation plate 341, as shown in Figure 6 and Figure 6AAs shown, the two ends of the heat dissipation plate 341 are provided with connecting shafts 3411, the lifting side plate 321 is provided with a hinge hole 3213, and the connecting shafts 3411 at the two ends of the heat dissipation plate 341 are connected with the hinge holes 3213 of the two lifting side plates 321 respectively, so that the heat dissipation plate 341 is rotatably arranged in the lifting frame 32. It can be understood that the heat dissipation plate 341 can be rotated to a working position in the lifting frame 32, so that the heat dissipation plate 341 and the control board group 342 do not hinder the up and down sliding of the lifting frame 32 relative to the outer frame 31, and the heat dissipation plate 341 can also be rotated to a maintenance position at least partially located outside the lifting frame 32, so that the control board group 342 is at least partially exposed outside the lifting frame 32, thereby facilitating the maintenance of the heat dissipation plate 341 and the control board group 342. Alternatively, the maintenance position is a horizontal position of the heat dissipation plate 341. Alternatively, the hinge hole 3213 is arranged at the edge of the lifting side plate 321.

[0080] As shown in Figure 6 and Figure 6A , the lifting side plate 321 is provided with a first fixing hole 3214, and the heat dissipation plate 341 is provided with a second fixing hole 3412, the second fixing hole 3412 is used to be connected with the first fixing hole 3214 through a fastener, for example, through a screw, so as to lock the heat dissipation plate 341 in the working position in the lifting frame 32, and improve the problem that the heat dissipation plate 341 is accidentally rotated to the maintenance position and collides with the outer frame 31, the cross beam 1 or the first guide rail 2, causing damage to the heat dissipation plate 341 or the control board group 342.

[0081] In some embodiments, the inkjet device 3 further comprises a connecting chain (not shown), the two ends of the connecting chain are connected to the lifting side plate 321 and the heat dissipation plate 341 respectively, and the connecting chain is used to be tensioned when the heat dissipation plate 341 is rotated to the maintenance position, so as to be able to prevent the heat dissipation plate 341 from continuing to rotate under the action of gravity, so as to limit the heat dissipation plate 341 in the maintenance position, facilitating maintenance.

[0082] For the above-mentioned control board group 342, as shown in Figure 7 and Figure 8 , the control board group 342 comprises a first circuit board 3421, a circuit board frame 3422, a heat conduction column 3423, a second circuit board 3424, a heat conduction plate 3425 and an insulating sheet 3426.

[0083] The first circuit board 3421 is in the shape of a rectangular sheet, and the four corners of the two side faces of the first circuit board 3421 are provided with the above-mentioned heat conduction columns 3423. The four heat conduction columns 3423 on the side face of the first circuit board 3421 facing the heat dissipation plate 341 are connected with the heat dissipation plate 341, so as to arrange the first circuit board 3421 on the heat dissipation plate 341, and the heat conduction columns 3423 can conduct the heat on the first circuit board 3421 to the heat dissipation plate 341, which is conducive to the heat dissipation of the first circuit board 3421.

[0084] The circuit board frame 3422 is in the shape of a rectangular sheet, and the circuit board frame 3422 is arranged on the side of the first circuit board 3421 away from the heat dissipation plate 341. The four corners of the circuit board frame 3422 are connected to the four heat conduction columns 3423 on the side of the first circuit board 3421 facing the circuit board frame 3422, so that the first circuit board 3421 and the circuit board frame 3422 can transfer heat to each other. The side edges of the circuit board frame 3422 are provided with bending portions 34221, which can increase the heat dissipation area of the circuit board frame 3422, and the bending portions 34221 can also be in contact with other components to increase the heat dissipation efficiency of the circuit board frame 3422. The circuit board frame 3422 is provided with a gourd-shaped hole 34222, and the gourd-shaped hole 34222 is connected to the heat conduction column 3423, so that the circuit board frame 3422 and the first circuit board 3421 can be quickly connected and disconnected, that is, the circuit board frame 3422 can be quickly assembled and disassembled on the first circuit board 3421. The middle part of the circuit board frame 3422 is provided with a third through hole 34223, and the third through hole 34223 is used for connecting the cable passing through the first circuit board 3421 and the second circuit board 3424.

[0085] The heat conduction column 3423 is made of metal, for example, copper, which has good heat conduction effect. The end of the heat conduction column 3423 is provided with external threads or threaded holes, so as to be screwed with the heat dissipation plate 341, the first circuit board 3421 and the circuit board frame 3422. Alternatively, the heat conduction column 3423 is in the shape of a regular hexagonal prism, which is convenient to rotate.

[0086] The second circuit board 3424 is in the shape of a rectangular sheet, and the second circuit board 3424 is arranged on the side of the circuit board frame 3422 away from the first circuit board 3421, so as to be arranged on the heat dissipation plate 341, and the circuit board frame 3422 is located between the first circuit board 3421 and the second circuit board 3424, so as to separate the first circuit board 3421 and the second circuit board 3424, and improve the phenomenon of heat accumulation caused by the close distance between the two, that is, it is conducive to the heat dissipation of the first circuit board 3421 and the second circuit board 3424. The second circuit board 3424 can be installed on the circuit board frame 3422 by screws, and the second circuit board 3424 can be quickly assembled and disassembled with the circuit board frame 3422 on the first circuit board 3421.

[0087] Further, the first circuit board 3421 is provided with a first connector 34211 facing the second circuit board 3424, and the second circuit board 3424 is provided with a second connector 34241 facing the first circuit board 3421, the second connector 34241 is used to be connected with the first connector 34211 at the third through hole 34223. When the second circuit board 3424 and the circuit board frame 3422 are integrally installed on the first circuit board 3421, the second connector 34241 is electrically connected with the first connector 34211, and when the second circuit board 3424 and the circuit board frame 3422 are integrally detached from the first circuit board 3421, the second connector 34241 is separated from the second connector 34241, so that the electrical connection and separation of the first circuit board 3421 and the second circuit board 3424 can be realized when the second circuit board 3424 and the circuit board frame 3422 are quickly disassembled. In the above manner, when the second circuit board 3424 and the circuit board frame 3422 are disassembled, the cable between the first circuit board 3421 and the second circuit board 3424 does not need to be plugged in and pulled out, so that the disassembly of the second circuit board 3424 and the circuit board frame 3422 is more convenient. In some embodiments, the second connector 34241 can also be connected with the first connector 34211 by a cable.

[0088] The heat-conducting plate 3425 is in a block shape, the number of the heat-conducting plate 3425 is two, and the heat-conducting plate 3425 is clamped between the first circuit board 3421 and the heat-dissipating plate 341 to increase the heat conduction efficiency between the first circuit board 3421 and the heat-dissipating plate 341. The heat-conducting plate 3425 can be a metal material, for example, copper, which has good heat conduction effect.

[0089] The insulating sheet 3426 is in a rectangular sheet shape, the insulating sheet 3426 is clamped between the first circuit board 3421 and the heat-conducting plate 3425 to insulate the first circuit board 3421 and the heat-conducting plate 3425, and to improve the problem of short circuit of the first circuit board 3421 caused by the contact between the heat-conducting plate 3425 and the first circuit board 3421. The insulating sheet 3426 can be a plastic material. Optionally, the insulating sheet 3426 is attached to the first circuit board 3421 by adhesive.

[0090] In some embodiments, the control board set 342 further comprises a first shell 3427 and a second shell 3428, the first shell 3427 is arranged between the heat-conducting plate 3425 and the heat-dissipating plate 341, and the second shell 3428 is detachably arranged on the first shell 3427. The first shell 3427 and the second shell 3428 form a cavity (not shown) and wrap the first circuit board 3421, the circuit board holder 3422, the heat-conducting column 3423, the second circuit board 3424, the heat-conducting plate 3425 and the insulating sheet 3426 in the cavity to protect the first circuit board 3421, the circuit board holder 3422, the heat-conducting column 3423, the second circuit board 3424, the heat-conducting plate 3425 and the insulating sheet 3426. Optionally, the four heat-conducting columns 3423 on the side of the first circuit board 3421 facing the heat-dissipating plate 341 install the first shell 3427 on the heat-dissipating plate 341. Optionally, when the second shell 3428 is installed on the first shell 3427, the second shell 3428 clamps the bent part 34221 of the circuit board holder 3422 to fix itself on the first shell 3427. Since the second shell 3428 is in contact with the bent part 34221, the heat of the circuit board holder 3422 can be conducted to the second shell 3428 for heat dissipation.

[0091] For the above-mentioned lifting drive assembly 35, as shown in Figure 9 the lower end of the lifting drive assembly 35 is connected with the lifting beam 323, the upper end of the lifting drive assembly 35 is connected with the outer beam 312, and the part of the lifting drive assembly 35 between the outer beam 312 and the lifting beam 323 can be telescopic to drive the lifting frame 32 to slide up and down relative to the outer frame 31. Optionally, the lifting beam 323 is arranged directly below the outer beam 312.

[0092] As shown in Figure 9 the lifting drive assembly 35 comprises a mounting seat 351, a connecting seat 352, a lead screw 353 and a first motor 354. The mounting seat 351 is arranged on the outer beam 312, the connecting seat 352 is arranged on the lifting beam 323, the lead screw 353 is rotatably arranged on the mounting seat 351, the lead screw 353 is threadedly connected with the connecting seat 352, and the first motor 354 is arranged on the mounting seat 351 and is in transmission connection with the lead screw 353. The first motor 354 is used to drive the lead screw 353 to rotate to drive the connecting seat 352 to move up and down, thereby driving the lifting frame 32 to slide up and down relative to the outer frame 31.

[0093] In some embodiments, as shown in Figure 9 the lifting drive assembly 35 further comprises a resilient member 355, which is supported between the lifting beam 323 and the connecting seat 352 to play a buffering role when the lifting drive assembly 35 drives the lifting frame 32 to descend, thereby improving the problem of the lifting frame 32 violently impacting the printing medium. Optionally, the resilient member 355 is a straight spring.

[0094] Further, asFigure 9 As shown, the lifting beam 323 is provided with a second blocking piece 3231, the connecting seat 352 is provided with a second position sensor 3521, and the movement path of the second blocking piece 3231 is at least partially located in the detection area of the second position sensor 3521, so that the compression degree of the elastic member 355 can be detected. In the above manner, it can be judged whether the lifting frame 32 is abnormally hindered. For example, when the lifting frame 32 is hindered by foreign matter on the printing medium, the elastic member 355 gradually contracts until the second position sensor 3521 is triggered by the second blocking piece 3231, at which time it can be judged that the lifting frame 32 is abnormally hindered. When the second position sensor 3521 is triggered, the operation of the lifting drive assembly 35 is stopped, which can improve the problem that the lifting drive assembly 35 still drives the lifting frame 32 to descend, causing damage to the lifting frame 32. It can be understood that the printhead 33, the board assembly 34 and the ink cartridge assembly 36 are all arranged on the lifting frame 32, so that the problem that the printhead 33, the board assembly 34 and the ink cartridge assembly 36 are abnormally hindered but the lifting drive assembly 35 still drives the lifting frame 32 to descend, causing damage to the printhead 33, the board assembly 34 and the ink cartridge assembly 36 can also be improved. Alternatively, the second position sensor 3521 is an optical sensor, and the second blocking piece 3231 triggers the second position sensor 3521 by shielding the light emitted by the emitting end of the second position sensor 3521 to the receiving end.

[0095] For the above-mentioned ink cartridge assembly 36, as shown in Figure 10 and Figure 11 The ink cartridge assembly 36 includes a cartridge body 361, an end cover 362, a liquid level cover 363, a liquid level sensor 364, a temperature sensor 365, a heating member 366 and a gas pressure valve 367.

[0096] The cartridge body 361 is in the shape of a rectangular parallelepiped, and the cartridge body 361 is horizontally arranged, where the horizontal arrangement means that the length direction of the cartridge body 361 is parallel to the horizontal plane. The cartridge body 361 has an ink cavity (not shown) therein, and both ends of the cartridge body 361 are provided with sealed openings 3611 which are in communication with the ink cavity. The end cover 362 is detachably arranged at the sealed openings 3611 and seals the sealed openings 3611, so as to seal the space in the ink cavity together with the cartridge body 361. Alternatively, a sealing ring (not shown) is arranged between the end cover 362 and the cartridge body 361. In the embodiment of the present application, the length direction of the cartridge body 361 is parallel to the first direction X.

[0097] When the ink cartridge assembly 36 needs to be cleaned, mainly the box body 361 and the end cover 362, the end cover 362 can be removed, so that the inner wall of the box body 361 and the end cover 362 are cleaned, the cleaning effect is enhanced, and the cleaning efficiency is improved. Because the two ends of the box body 361 are provided with the sealing openings 3611, the box body 361 can be cleaned from both ends at the same time, the cleaning efficiency is improved; and when the box body 361 is washed, the washing liquid can be discharged from the sealing openings 3611 at both ends of the box body 361, the liquid is not easy to accumulate in the box body 361, and the accumulated liquid does not easily affect the washing of the box body 361, so that the box body 361 is easily washed, the cleaning effect is enhanced, and the cleaning efficiency is improved.

[0098] The top of the box body 361 is provided with a liquid level detection hole 3612, the liquid level detection hole 3612 communicates with the ink cavity, a liquid level cover 363 is arranged on the liquid level detection hole 3612, and a liquid level sensor 364 is arranged in the liquid level cover 363, so that the liquid level sensor 364 at least partially extends into the ink cavity and can detect the liquid level of the ink in the ink cavity. The liquid level cover 363 is detachably arranged on the liquid level detection hole 3612, so that when the ink cartridge assembly 36 is cleaned, the liquid level cover 363 and the liquid level sensor 364 are easily removed, and the ink cartridge assembly 36 is easily cleaned.

[0099] Optionally, two liquid level detection holes 3612 are arranged, one liquid level detection hole 3612 is close to the end of the box body 361, and the other liquid level detection hole 3612 is located at the middle of the box body 361 along the first direction X, and the two liquid level detection holes 3612 are provided with the liquid level cover 363 and the liquid level sensor 364, so that the liquid levels at the ends and the middle of the box body 361 can be detected respectively.

[0100] The top of the box body 361 is also provided with a temperature detection hole 3613, the temperature detection hole 3613 communicates with the ink cavity, and a temperature sensor 365 is arranged in the temperature detection hole 3613, so that the temperature sensor 365 at least partially extends into the ink cavity and can detect the temperature of the ink in the ink cavity.

[0101] The top of the box body 361 is also provided with a gas pressure pipe 3614, the gas pressure pipe 3614 communicates with the ink cavity, and the gas pressure pipe 3614 can communicate with an external gas source to adjust the gas pressure in the ink cavity. When the ink cartridge assembly 36 is cleaned, the gas pressure in the ink cavity can be increased, so that the pressure of the ink at the ink cartridge assembly 36 is increased, and the ink sediment in the ink cartridge assembly 36 can be flushed out; when the printing is stopped, the gas pressure in the ink cavity can be reduced, so that the ink in the ink cartridge assembly 36 flows back to the ink cavity.

[0102] The bottom of the cartridge body 361 is provided with an ink inlet pipe 3615 and an ink outlet pipe 3616 which are in communication with the ink cavity. The ink inlet pipe 3615 is used to connect the ink inlet pipe 3615 to supplement the ink in the ink cavity, and the ink outlet pipe 3616 is used to connect the ink head 33 to deliver ink to the ink head 33. Since the ink inlet pipe 3615 is also arranged at the bottom of the cartridge body 361, the ink near the bottom of the cartridge body 361 can be driven to flow when the ink is added, so as to reduce the deposition of the ink. Further, the ink outlet pipe 3616 is provided with a plurality of ink outlet pipes 3616, so that one ink cartridge assembly 36 can be in communication with a plurality of ink heads 33. Alternatively, a plurality of ink outlet pipes 3616 are arranged at equal intervals along the first direction X, and the ink inlet pipe 3615 is arranged at one end of the cartridge body 361.

[0103] A fourth through hole 3631 is formed in the middle of the liquid level cover 363, and an inner thread is formed in the fourth through hole 3631. The connecting end of the liquid level sensor 364 is provided with an outer thread, and the liquid level sensor 364 is screwed with the liquid level cover 363. The connecting end of the liquid level sensor 364 is sleeved with a nut 3641, and the nut 3641 is abutted against the liquid level cover 363 by rotating the nut 3641, so as to fix the liquid level sensor 364 on the liquid level cover 363. By rotating the liquid level sensor 364 and adjusting the position of the nut 3641 on the liquid level sensor 364, the height of the liquid level sensor 364 relative to the cartridge body 361 can be adjusted, so as to adjust the liquid level sensor 364 to a suitable height and improve the accuracy of liquid level detection.

[0104] The number of liquid level sensors 364 is multiple, and the multiple liquid level sensors 364 include a high liquid level sensor and a low liquid level sensor. The high liquid level sensor and the low liquid level sensor have the same structure, except that their heights are different along the second direction Z. The high liquid level sensor is higher than the low liquid level sensor. The high liquid level sensor is used to detect the highest liquid level allowed in the cartridge body 361, and the low liquid level sensor is used to detect the lowest liquid level allowed in the cartridge body 361. When the low liquid level sensor detects that the liquid level reaches the lowest liquid level, a signal is sent to the outside to supplement the ink cartridge assembly 36 with ink. When the high liquid level sensor detects that the liquid level reaches the highest liquid level, a signal is sent to the outside to stop supplementing the ink cartridge assembly 36 with ink, so as to maintain the liquid level of the ink between the highest liquid level and the lowest liquid level. Alternatively, the high liquid level sensor is arranged in the liquid level detection hole 3612 located in the middle of the cartridge body 361 along the first direction X, and the low liquid level sensor is arranged in the liquid level detection hole 3612 close to the end of the cartridge body 361. The number of high liquid level sensors and low liquid level sensors can be one or more. When the number is multiple, the detection accuracy of the liquid level can be improved.

[0105] The plurality of liquid level sensors 364 includes a group of liquid level sensors 364 at the same height, that is, each liquid level sensor 364 in the group of liquid level sensors 364 is located at the same height, and the number of liquid level sensors 364 in the group of liquid level sensors 364 is two or more. In the group of liquid level sensors 364 at the same height, at least two liquid level sensors 364 are arranged at two ends of the cartridge body 361. When the heights of the two ends of the cartridge body 361 are different, the liquid level data detected by the at least two liquid level sensors 364 will be different, so that it can be judged that the cartridge body 361 is not installed horizontally. In the above manner, the staff can be reminded in time to correct the inclination of the cartridge body 361, and the problem that the cartridge body 361 has different ink supply pressures to different nozzles 33 due to the inclination of the cartridge body 361 is improved, that is, the problem of uneven printing of the printing module 100 is improved. When the number of liquid level sensors 364 in the group of liquid level sensors 364 at the same height is three or more, the three or more liquid level sensors 364 are arranged at equal intervals along the first direction X, so as to further improve the detection accuracy of the inclination of the cartridge body 361.

[0106] Further, the group of liquid level sensors 364 at the same height is a group of high liquid level sensors, that is, the number of high liquid level sensors is at least two, and at least two high liquid level sensors are arranged at two ends of the cartridge body 361. In this way, the high liquid level sensors can detect the highest liquid level and the inclination of the cartridge body 361, which is beneficial to reducing the number of liquid level sensors 364. Similarly, the group of liquid level sensors 364 at the same height can also be a group of low liquid level sensors, that is, the number of low liquid level sensors is at least two, and at least two low liquid level sensors are arranged at two ends of the cartridge body 361. It can be understood that the plurality of liquid level sensors 364 can also include a plurality of groups of liquid level sensors 364 at the same height, for example, a group of high liquid level sensors and a group of low liquid level sensors.

[0107] The heating member 366 is arranged on the outer wall of the cartridge body 361, the heating member 366 is in a sheet shape and is attached to the outer wall of the cartridge body 361, so as to heat the ink in the ink cavity, heat the ink to a suitable temperature, and make the performance of the ink best. The flowability of the ink is increased, the ink is uniformly distributed in the ink cavity, the problem that the printing effect of the inkjet device 3 is uneven due to different ink supply pressures of the cartridge body 361 to different nozzles 33 is improved, and the printing effect of the inkjet device 3 is improved. In other embodiments, the heating member 366 can also be arranged in the ink cavity, and the heating member 366 can also have other shapes, such as a rod shape, a spiral shape, etc. Optionally, the heating member 366 is attached to the outer wall of the cartridge body 361 by adhesive or is mounted on the outer wall of the cartridge body 361 by screws.

[0108] The gas pressure valve 367 is arranged on the outer wall of the shell, and the gas pressure valve 367 can be an electromagnetic valve. The gas pressure valve 367 is provided with an air inlet pipe 3671 and an air outlet pipe 3672, and the gas pressure valve 367 can control the on-off of the gas between the air inlet pipe 3671 and the air outlet pipe 3672. The number of gas pressure valves 367 is two, the two air inlet pipes 3671 of the two gas pressure valves 367 can be respectively communicated with the high-pressure gas source and the low-pressure gas source, and the two air outlet pipes 3672 of the two gas pressure valves 367 can be communicated with the same gas pressure pipe 3614, or the two air outlet pipes 3672 of the two gas pressure valves 367 are respectively communicated with two gas pressure pipes 3614. In the above manner, the high-pressure gas source or the low-pressure gas source can be respectively communicated or cut off with the ink cavity, so as to realize the adjustment of the gas pressure in the ink cavity. It can be understood that the number of gas pressure valves 367 and gas pressure pipes 3614 can be two or more, and a plurality of gas pressure valves 367 can be respectively communicated with a plurality of external gas sources, wherein the gas pressures of at least two of the plurality of external gas sources are different. Alternatively, the external gas source is an inert gas.

[0109] For the above-mentioned maintenance device 4, as shown in Figure 12 and Figure 13 , the maintenance device 4 comprises a bracket assembly 41, a translation driving assembly 42, a maintenance assembly 43 and a water spraying assembly 44. The bracket assembly 41 is used to install the maintenance assembly 43 and the water spraying assembly 44, the translation driving assembly 42 is used to drive the maintenance assembly 43 to move in translation with respect to the bracket assembly 41, the maintenance assembly 43 is used to clean and moisturize the nozzle 33, reduce the nozzle 33 blockage, and prolong the service life of the nozzle 33, and the water spraying assembly 44 is used to spray water to the maintenance assembly 43 to flush the maintenance assembly 43. In the embodiments of the present application, the liquid sprayed by the water spraying assembly 44 is taken as an example to be described.

[0110] For the above-mentioned bracket assembly 41, as shown in Figure 12 and Figure 13 , the bracket assembly 41 comprises a mounting beam 411, a connecting beam 412, a third guide rail 413, a second sliding block 414, a wastewater tank 415 and a liquid collecting tank 416.

[0111] The number of mounting beams 411 is two, and the two mounting beams 411 are arranged in parallel and horizontally. The number of connecting beams 412 is multiple, and the connecting beams 412 are perpendicular to the mounting beams 411 and arranged horizontally. The two ends of the connecting beams 412 are respectively connected with the two mounting beams 411 to form a frame shape. The mounting beam 411 can be mounted on the printing platform, so that the relative position of the mounting beam 411 and the cross beam 1 is fixed. In the embodiments of the present application, the extension direction of the mounting beam 411 is parallel to the first direction X.

[0112] The third guide rails 413 are two in number and are arranged on opposite sides of the two mounting beams 411. In other embodiments, the third guide rails 413 can also be arranged on the top or bottom of the mounting beams 411. It can be understood that the extending direction of the third guide rails 413 is parallel to the first direction X.

[0113] The second sliders 414 are slidably arranged on the third guide rails 413, and the second sliders 414 are connected with the maintenance assembly 43 so as to slidably arrange the maintenance assembly 43 on the support assembly 41.

[0114] The waste water tank 415 is arranged on the connecting beam 412 and is used to receive the moisturizing liquid flowing out of the maintenance assembly 43. The waste water tank 415 is trumpet-shaped and extends along the first direction X, so that the waste water tank 415 can always receive the moisturizing liquid flowing out of the maintenance assembly 43 when the maintenance assembly 43 slides to any position along the third guide rails 413, thereby improving the problem that the moisturizing liquid flowing out of the maintenance assembly 43 may drip onto the printing platform and contaminate the printing platform and the printing medium, thereby affecting the printing work. Optionally, the bottom of the waste water tank 415 is provided with a drain pipe 4151 for connecting with an external drain pipe.

[0115] The liquid collecting tank 416 is arranged on the connecting beam 412 and is located below the maintenance assembly 43 and directly below the water spraying assembly 44. The liquid collecting tank 416 is in the shape of a rectangular parallelepiped with an open top and is used to receive the moisturizing liquid sprayed from the water spraying assembly 44 but not falling into the maintenance assembly 43 and to receive the moisturizing liquid dripping from the maintenance assembly 43, thereby improving the problem of water leakage of the maintenance assembly 43. Herein, the liquid collecting tank 416 is directly below the water spraying assembly 44 in the upward and downward direction, and the relative position relationship between the liquid collecting tank 416 and the water spraying assembly 44 is such that the overlapping area between them is maximized.

[0116] For the above-mentioned translation driving assembly 42, as shown in Figure 13 and Figure 14 The translation driving assembly 42 includes pulleys 421, a driving belt 422 and a second motor 423. The pulleys 421 are rotatably arranged on the support assembly 41, and the rotation axis of the pulleys 421 is perpendicular to the third guide rails 413. The number of the pulleys 421 is at least two. The driving belt 422 is sleeved on the at least two pulleys 421, and the driving belt 422 is connected with the maintenance assembly 43. The second motor 423 is in transmission connection with at least one pulley 421, so that the second motor 423 can drive the driving belt 422 to rotate and in turn drive the maintenance assembly 43 to slide along the third guide rails 413. Optionally, the driving belt 422 is a belt or a rubber belt.

[0117] For the above-mentioned maintenance assembly 43, as shown in Figure 14 and Figure 15As shown, the maintenance assembly 43 comprises a moisturizing disc 431, a connecting piece 432, a scraping piece 433, an elastic moisturizing piece 434, and a busbar 435.

[0118] The moisturizing disc 431 is connected with the second sliding block 414 to be slidably arranged on the third guide rail 413, and the connecting piece 432 is arranged at one end of the moisturizing disc 431. The connecting piece 432 is connected with the driving belt 422, so that the driving belt 422 can drive the moisturizing disc 431 to slide along the third guide rail 413. Further, as shown in Figure 15 As shown, the side wall of the moisturizing disc 431 is provided with a third blocking piece 4311, and referring to Figure 13 As shown, the mounting beam 411 is provided with a third position sensor 4111, and the movement path of the third blocking piece 4311 is at least partially located in the detection area of the third position sensor 4111, so that the position of the moisturizing disc 431 relative to the bracket assembly 41 can be detected. Optionally, the third position sensor 4111 is an optical sensor, and the third blocking piece 4311 triggers the third position sensor 4111 by shielding the light emitted by the third position sensor 4111 from the receiving end.

[0119] The moisturizing disc 431 is rectangular disc-shaped, and is arranged horizontally. The top surface of the moisturizing disc 431 is provided with a moisturizing groove 4312 for containing moisturizing liquid. The shape and size of the moisturizing disc 431 are matched with the shape and size of the lifting bottom plate 322. The top edge of the moisturizing disc 431 is provided with a sealing convex rib 4313 for contacting the edge portion of the lifting bottom plate 322 to increase the sealing effect between the moisturizing disc 431 and the lifting bottom plate 322, reduce the evaporation of the moisturizing liquid in the moisturizing groove 4312, and improve the problem of external pollutants entering the moisturizing disc 431. The number of the moisturizing disc 431 is equal to the number of the lifting bottom plate 322, and one moisturizing disc 431 corresponds to one lifting bottom plate 322, that is, one moisturizing disc 431 is used for moisturizing the nozzle 33 on one lifting bottom plate 322. The number of the moisturizing groove 4312 can be one or more. In the embodiment, each moisturizing disc 431 is provided with two moisturizing grooves 4312, and the two moisturizing grooves 4312 are arranged in the third direction Y. Optionally, the moisturizing liquid can be water or a mixture of water and ink.

[0120] The side wall of the moisturizing tray 431 is provided with a first water outlet pipe 4314, which is connected to the moisturizing tank 4312. The inlet of the first water outlet pipe 4314 is separated from the bottom surface of the moisturizing tank 4312. When the level of the moisturizing liquid in the moisturizing tank 4312 exceeds the inlet, the moisturizing liquid is discharged from the first water outlet pipe 4314 and flows into the wastewater tank 415, thereby achieving control of the level of the moisturizing liquid in the moisturizing tank 4312, so that it will not overflow from the moisturizing tray 431, nor will the moisturizing effect be affected by insufficient moisturizing liquid.

[0121] A scraper 433 is disposed on the bottom surface of the moisturizing tank 4312. There are multiple scrapers 433, the number of which is equal to the number of nozzles 33. The arrangement of the scrapers 433 on the bottom surface of the moisturizing tank 4312 is the same as the arrangement of the nozzles 33 on the lifting base plate 322, thus each scraper 433 corresponds one-to-one with each nozzle 33. When the translation drive assembly 42 drives the moisturizing disc 431 to slide relative to the support assembly 41, each scraper 433 can simultaneously clean each nozzle 33. Optionally, the width of the scraper 433 is equal to or slightly larger than the width of the nozzle 33.

[0122] Elastic moisturizing components 434 are disposed on the bottom surface of the moisturizing tank 4312. There are multiple elastic moisturizing components 434, the number of which is equal to the number of spray nozzles 33. The arrangement of the elastic moisturizing components 434 on the bottom surface of the moisturizing tank 4312 is the same as the arrangement of the spray nozzles 33 on the lifting base plate 322, thus each elastic moisturizing component 434 corresponds one-to-one with each spray nozzle 33, and each elastic moisturizing component 434 can simultaneously contact each spray nozzle 33. When the elastic moisturizing component 434 contacts the spray nozzle 33, it can absorb and diffuse the moisturizing liquid onto the surface of the spray nozzle 33 to moisturize the spray nozzle 33 and enhance the moisturizing effect. Optionally, the elastic moisturizing component 434 is a sponge. Optionally, the length and width of the elastic moisturizing component 434 are equal to the length and width of the spray nozzle 33.

[0123] In some embodiments, such as Figure 15 As shown, along the third direction Y, the scraper 433 and the elastic moisturizing element 434 are arranged in multiple columns. The arrangement direction of each column is parallel to the first direction X, and the scraper 433 and the elastic moisturizing element 434 in each column are arranged alternately. By moving the position of the moisturizing disc 431, the scraper 433 can be made to contact the nozzle 33 one by one, so that multiple nozzles 33 can be cleaned at the same time, improving cleaning efficiency; the elastic moisturizing element 434 can also be made to contact the nozzle 33 one by one, so that all nozzles 33 can be moisturized at the same time, improving the moisturizing effect.

[0124] It should be noted that along the second direction Z, the wiper 433 protrudes from the elastic moisturizing member 434, so as to improve the problem that the elastic moisturizing member 434 interferes with the nozzle 33 when the wiper 433 contacts the nozzle 33, and ensure the normal operation of the cleaning process. In addition, as shown in Figure 5 the bottom surface of the lifting bottom plate 322 is provided with a clearance groove 3222, and by inserting the wiper 433 into the clearance groove 3222, the elastic moisturizing member 434 can contact the nozzle 33.

[0125] The bus bar 435 is arranged on the connecting piece 432, and the bus bar 435 is provided with a first water inlet pipe 4351 and a second water outlet pipe 4352, the first water inlet pipe 4351 and the second water outlet pipe 4352 are communicated, the number of the first water inlet pipe 4351 is equal to the sum of the number of the first water outlet pipe 4314 of the plurality of moisturizing discs 431, one first water inlet pipe 4351 is communicated with one first water outlet pipe 4314, and the second water outlet pipe 4352 is located above the waste water tank 415, so as to collect the moisturizing liquid discharged from the plurality of first water outlet pipes 4314 to the second water outlet pipe 4352, and then discharge the moisturizing liquid from the second water outlet pipe 4352 to the waste water tank 415. In the above manner, it is beneficial to reduce the number of the waste water tank 415, for example, only one waste water tank 415 is needed to collect the moisturizing liquid discharged from the plurality of moisturizing discs 431, which is beneficial to reduce the cost of the maintenance device 4; when the number of the waste water tank 415 is one, the width of the waste water tank 415 only needs to be greater than the inner diameter of the second water outlet pipe 4352, that is, it is beneficial to reduce the width of the waste water tank 415 along the third direction Y, to reduce the volume occupied by the waste water tank 415, and further to reduce the space occupied by the maintenance device 4.

[0126] For the above-mentioned water spraying assembly 44, as shown in Figure 12 and Figure 13 the water spraying assembly 44 is arranged on the bracket assembly 41, and along the first direction X, the water spraying assembly 44 is located at the middle part of the bracket assembly 41, so that when the moisturizing disc 431 slides along the third guide rail 413, the water spraying assembly 44 can spray moisturizing liquid to and fro the moisturizing disc 431, so that each wiper 433 and each elastic moisturizing member 434 can be washed.

[0127] As shown in Figure 16As shown, the water spraying assembly 44 comprises a second water inlet pipe 441 and a water spraying strip 442, the second water inlet pipe 441 is communicated with the water spraying strip 442, the second water inlet pipe 441 is used for connecting an external pipeline to input the moisturizing liquid, and the water spraying strip 442 is located above the maintenance assembly 43, the water spraying strip 442 is used for spraying the moisturizing liquid to the maintenance assembly 43 to supplement the moisturizing liquid to the moisturizing disc 431 and can wash the ink on the blade 433 and the elastic moisturizing piece 434, the water spraying equipment for cleaning the blade 433 and the water spraying equipment for supplementing the moisturizing liquid are combined, which is beneficial to reducing the volume of the maintenance device 4, and the moisturizing liquid can be fully utilized, that is, the moisturizing liquid has both moisturizing effect and washing effect.

[0128] The number of the water spraying strips 442 is multiple, the multiple water spraying strips 442 are divided into two groups, each group of water spraying strips 442 is used for washing one moisturizing disc 431, and the number of the water spraying strips 442 in each group of water spraying strips 442 can be one or multiple. When the number of the water spraying strips 442 in each group of water spraying strips 442 is multiple, the multiple water spraying strips 442 in each group are arranged along the first direction X to enhance the washing effect on the moisturizing disc 431 and the blade 433 and the elastic moisturizing piece 434 on the moisturizing disc 431. Alternatively, the number of the water spraying strips 442 in each group of water spraying strips 442 is two.

[0129] The water spraying strip 442 is provided with multiple water spraying holes 4421 at the bottom, so that multiple thin water columns can be formed to wash the maintenance assembly 43, thereby enhancing the washing effect on the moisturizing disc 431, the blade 433 and the elastic moisturizing piece 434. The multiple water spraying holes 4421 are divided into multiple groups, each group of water spraying holes 4421 corresponds to the position of a column of blades 433 and elastic moisturizing pieces 434 to wash the column of blades 433 and elastic moisturizing pieces 434.

[0130] Based on the same inventive concept, the embodiment of the present application also provides a printer (not shown) comprising the printing module 100. The printer has the structural features and beneficial effects of the printing module, which will not be described here.

[0131] In the printing module 100 and the printer, the inkjet device 3 can slide relative to the cross beam 1, so that the inkjet device 3 can slide to a position convenient for maintenance, so as to facilitate maintenance of the inkjet device 3; and the control board group 342 is arranged on the heat dissipation plate 341, which is conducive to heat dissipation of the control board group 342, improves the problem of serious heating of the control board group 342, and at the same time, the heat dissipation plate 341 can rotate to a maintenance position at least partially located outside the lifting frame 32, so as to facilitate maintenance of the control board group 342. The open structure of the outer frame 31 and the lifting frame 32 makes it more convenient to maintain the inkjet head 33, the lifting driving assembly 35, the board card assembly 34 and the ink cartridge assembly 36. The multi-layer structure of the control board group 342 has good heat dissipation effect, and the second circuit board 3424 and the circuit board frame 3422 are convenient to disassemble and assemble. The ink cartridge assembly 36 has a temperature sensor 365 and a heating element 366, which can heat the ink to a suitable temperature, improving the printing effect of the inkjet device 3. The maintenance device 4 can clean and moisturize the inkjet head 33, reduce the blockage of the inkjet head 33, and prolong the service life of the inkjet head 33.

[0132] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; under the idea of the present application, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above. In order to be brief, they are not provided in details; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A print module, characterized by, The utility model relates to a kind of inkjet device, including: Crossbeam; First guide rail, slidably arranged in the crossbeam; The inkjet device is arranged in the first guide rail, and the inkjet device includes outer frame, lifting frame and board card assembly;The outer frame is arranged in the first guide rail, and the outer frame includes two outer side plates, three outer side beams, two outer side plates are parallel and spaced apart, and the both ends of each outer side beam are connected with two outer side plates respectively, to form frame structure;The lifting frame is slidably arranged in the outer frame, and the lifting frame includes two lifting side plates, a lifting bottom plate and a lifting beam, two lifting side plates are parallel and spaced apart, the both ends of the lifting bottom plate are connected with the bottom end of two lifting side plates respectively, and the lifting beam is connected with two lifting side plates respectively, to form frame structure;The board card assembly includes heat dissipation plate and control board group, the heat dissipation plate is rotatably arranged in the lifting frame, the control board group is arranged on the heat dissipation plate, the heat dissipation plate is used to heat dissipation to the control board group, and the heat dissipation plate is also used to rotate to at least part in the maintenance position outside the lifting frame, so that the control board group is at least partially exposed outside the lifting frame;The control board group includes first circuit board, circuit board frame, second circuit board and multiple heat-conducting columns, the first circuit board is arranged on the heat dissipation plate, the circuit board frame is connected with the first circuit board and the second circuit board respectively, to arrange the second circuit board on the heat dissipation plate, and the circuit board frame is located between the first circuit board and the second circuit board, to separate the first circuit board and the second circuit board;Part of the heat-conducting column connects the first circuit board with the heat dissipation plate, and another part of the heat-conducting column connects the circuit board frame with the first circuit board;The circuit board frame is provided with a gourd hole, and the circuit board frame is connected with the heat-conducting column through the gourd hole.

2. The print module of claim 1, wherein, One of the crossbeam and the first guide rail is provided with a locking member, and the other is provided with a clamp, and the clamp is used to cooperate with the locking member to lock the first guide rail on the crossbeam.

3. The print module of claim 1, wherein, The lifting side plate is provided with a hinge hole; Both ends of the heat dissipation plate are provided with connecting shafts, and the connecting shafts at both ends of the heat dissipation plate are connected with the hinge holes of two lifting side plates respectively, to rotatably arrange the heat dissipation plate in the lifting frame.

4. The print module of claim 1, wherein, The lifting side plate is provided with a first fixing hole, and the heat dissipation plate is provided with a second fixing hole, and the second fixing hole is used to be connected with the first fixing hole through a fastener, to lock the heat dissipation plate in the working position in the lifting frame. And / or, the inkjet device further includes a connecting chain, and both ends of the connecting chain are connected to the lifting side plate and the heat dissipation plate respectively, and the connecting chain is used to be tensioned when the heat dissipation plate rotates to the maintenance position, to prevent the heat dissipation plate from continuing to rotate under the action of gravity.

5. The print module of claim 1, wherein, The control board group further includes a heat-conducting plate and an insulating sheet, the heat-conducting plate is clamped between the first circuit board and the heat dissipation plate, and the insulating sheet is clamped between the first circuit board and the heat-conducting plate.

6. The print module of claim 1, wherein, The inkjet device further comprises an ink cartridge assembly, the ink cartridge assembly comprising a cartridge body, a heating element and a temperature sensor, the heating element being arranged in the cartridge body, the cartridge body having an ink cavity, the heating element being used for heating ink in the ink cavity; the temperature sensor at least partially extending into the ink cavity, the temperature sensor being used for detecting the temperature of the ink in the ink cavity.

7. The print module of claim 6, wherein, A liquid level detection hole is formed in the top of the cartridge body; The ink cartridge assembly further comprises a liquid level cover and a liquid level sensor, the liquid level cover being arranged on the liquid level detection hole, the liquid level sensor being arranged in the liquid level cover to at least partially extend into the ink cavity.

8. The print module of claim 1, wherein, The printing module further comprises a maintenance device, the maintenance device comprising a maintenance assembly and a water spraying assembly; the maintenance assembly being used for cleaning and moisturizing the inkjet device; the water spraying assembly comprising a water spraying strip, the water spraying strip having a plurality of water spraying holes formed in the bottom to form a plurality of water columns to flush the maintenance assembly.

9. The print module of claim 8, wherein, The maintenance device further comprises a waste water tank; The maintenance assembly comprises a bus bar and a plurality of moisturizing discs, the side wall of the moisturizing disc being provided with a first water outlet pipe, the first water outlet pipe being in communication with the moisturizing disc; the bus bar being provided with a second water outlet pipe, the second water outlet pipe being in communication with the first water outlet pipes of the plurality of moisturizing discs, the second water outlet pipe being located above the waste water tank.

10. A printer characterized by comprising: The printing module comprises any one of claims 1 to 9.

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