Humidifying device for printer

Abstract

The humidification device comprises a water box and a water supply assembly, the water box is arranged on the peripheral side of a printing platform, and the water supply assembly is used for providing hot water into the water box. The device has the effect that the printer nozzle is always kept wet in the moving process.

Description

Technical Field

[0001] The present application relates to the field of humidifying devices for printers, and in particular to a humidifying device for printers. Background Art

[0002] UV printer is a full-color digital printing machine without plate making; it is not restricted by any materials and can perform color photo-level printing on surfaces such as T-shirts, sliding doors, cabinet doors, sliding doors, glass, plates, various signs, crystal, PVC, acrylic, metal, plastic, stone, leather, etc.

[0003] refer to Figure 1 The UV printer includes a printer body 7, a printer nozzle 71 and a printing platform 72. The printer nozzle 71 is slidably connected to the printer body 7 horizontally and parallel to the length direction of the printer body 7. The printing platform 72 is located below the printer nozzle 71. The printing platform 72 is fixedly set on the printer body 7, and the printing platform 72 is used to support the printed object.

[0004] During the inkjet printing process of a UV printer, the ink is easy to solidify on the printer nozzle. The blocked printer nozzle will affect the printing effect. The traditional method is to place a humidifier around the UV printer to increase the humidity of the surrounding air so that the solidified ink will no longer block the nozzle. However, since the humidifier cannot directly act on the printer nozzle, the humidification effect is not very ideal. Summary of the invention In order to keep the printer nozzle moist at all times during movement, the present application provides a humidifying device for a printer.

[0005] The present application provides a humidifying device for a printer, which adopts the following technical solution: A humidifying device for a printer comprises a water box and a water supply component. The water box is arranged on the peripheral side of a printing platform, and the water supply component is used for providing hot water into the water box.

[0006] By adopting the above technical solution, the water supply component supplies hot water to the water box. Since the water box is arranged on the peripheral side of the printing platform, the evaporated hot water in the water box will contact the moving printer nozzle, so that the printer nozzle is always in a moist state, reducing the occurrence of solidified ink clogging the printer nozzle.

[0007] Optionally, a cleaning device for cleaning the printer nozzle is provided on the printer body, and the cleaning device is provided on one end of the printer body. The water box includes two side water boxes, an end water box and a cleaning water box, and the cleaning water box is provided around the cleaning device. The two side water boxes are respectively located on both sides of the printing platform, the side water box is provided on the printer body, and the end water box is provided at one end of the printer body away from the cleaning device. The side water box, the end water box and the cleaning water box are connected by a water pipe.

[0008] By adopting the above technical solution, the cleaning device is used to directly contact the printer nozzle, so that the UV ink solidified on the printer nozzle is separated from the printer nozzle, which greatly extends the service life of the printer nozzle. The cleaning water box is located around the cleaning device, which can accelerate the shedding of the UV ink solidified on the printer nozzle. The side water box and the end water box can better surround the printing platform.

[0009] Optionally, the bottoms of the side water box, the end water box and the clean water box are all serrated, and the water inlets and outlets of the side water box, the end water box and the clean water box are all located at the bottom, and the water supply assembly controls the water to flow out after it submerges the serrated bottom.

[0010] By adopting the above technical solution, the water supply component always keeps the water in the water box submerged above the bottom of the water box, that is, the water is flattened on the bottom of the water box; due to the tension of water, the serrated bottom of the water box makes the contact area between water and air larger than the contact area of ​​the flat-bottomed water box, and the steam of the hot water can be better diffused into the air, thereby contacting the moving printer nozzle, so that the printer nozzle is always in a moist state.

[0011] Optionally, a lifting assembly for driving the clean water box to move vertically is provided on the printer body, the lifting assembly includes a lifting motor, a lifting screw, a sliding seat and a connecting rod, the sliding seat is slidably connected to the printer body in a horizontal direction, the length direction of the lifting screw is in the sliding direction of the sliding seat, the lifting screw is rotatably connected to the printer body, the sliding seat is threadedly connected to the lifting screw, the lifting motor is used to drive the lifting screw to rotate, one end of the connecting rod is rotatably connected to the sliding seat, and the other end of the connecting rod is rotatably connected to the clean water box.

[0012] By adopting the above technical solution, when the staff needs the cleaning device to clean the printer nozzle, the staff can start the lifting motor, the lifting motor drives the lifting screw to rotate, the lifting screw drives the sliding seat to slide on the printer body, the sliding seat drives the connecting rod to rotate, and the connecting rod drives the cleaning water box to move vertically upward, so that the cleaning device approaches the printer nozzle until it moves to a state where the printer nozzle can be cleaned. The lifting component has a simple structure and is easy for the staff to operate.

[0013] Optionally, the lifting assembly also includes a driving member for driving the end water box to move, the driving member includes a driving frame, a first limit block and a second limit block, the two side water boxes are both arranged on the driving frame, the driving frame is rotatably connected to the printer body along the width direction of the printer body, the first limit block is arranged on the clean water box, the first limit block is slidably connected to the driving frame along the length direction of the driving frame, the second limit block is arranged on the end water box, and the second limit block is slidably connected to the driving frame along the length direction of the driving frame.

[0014] By adopting the above technical scheme, the height linkage of the side water box, the end water box and the cleaning water box is achieved through the driving parts. When the cleaning device needs to clean the printer nozzle, the lifting component raises the height of the cleaning water box and the cleaning device. At this time, the driving frame will rotate under the drive of the first limit block, and the side water box installed on the driving frame will also rotate. The end water box will be lowered in height under the drive of the second limit block, and the height of the side water box will gradually increase from the end water box to the cleaning water box. When the cleaning device is in the process of cleaning the printer nozzle, part of the solidified UV ink on the nozzle will fall into the cleaning water box. The UV ink is insoluble in water and is in a dispersed system in water. Through the position height of the cleaning water box, the side water box and the end water box, it is convenient to quickly pass the UV ink through the side water box into the end water box, so that the staff can centrally process the UV ink in the end water box.

[0015] Optionally, the water supply assembly includes a heating box, a water outlet pipe, a water outlet pump, a return pipe, a return pump and a water adding pipe. The heating box is arranged on the printer body, and a heating pipe is arranged in the heating box. One end of the water outlet pipe is arranged on the heating box, and the other end of the water outlet pipe is arranged on the clean water box. The water outlet pump is arranged on the water outlet pipe, one end of the return pipe is arranged on the end water box, and the other end of the return pipe is arranged in the heating box. The reflux pump is arranged on the return pipe, and the water adding pipe is used to pass water into the heating box.

[0016] By adopting the above technical scheme, a heating pipe is provided in the heating box, and the heating pipe is used to heat the water in the heating box into hot water. The water outlet pump is used to let the hot water in the heating box enter the clean water box through the water outlet pipe. Part of the hot water is laid to the bottom of the clean water box, and part of the hot water flows toward the side water box. The hot water entering the side water box is laid at the bottom of the side water box, and the excess hot water flows into the end water box. When the amount of water in the end water box is large, the reflux pump pumps the water in the end water box back to the heating box through the reflux pipe for reheating. The water supply component is used to heat the hot water and realize the recycling of water, which is in line with the concept of green environmental protection. Since the hot water in the water box will evaporate into the air, the water adding pipe can keep the water amount in the humidifier constant.

[0017] Optionally, the heating box is provided with a control component for controlling water entering the water outlet pipe, and the control component includes a sealing disk, a gear and a rack. The sealing disk is rotatably connected to the heating box, the sealing disk is used to seal the water outlet pipe, and the sealing disk is provided with a connecting hole for connecting the water outlet pipe with the heating box. The gear is arranged on the sealing disk, and the rack is arranged on the clean water box, and the rack is meshed with the gear.

[0018] By adopting the above technical scheme, the control component is used to control the hot water to enter the clean water box. When the clean water box moves vertically upward under the action of the lifting component, the rack on the clean water box will drive the gear to rotate, and the gear drives the sealing disk to rotate, so that the connecting hole of the sealing disk is connected with the water outlet pipe, and the hot water in the heating box is pumped into the clean water box through the water outlet pump. The height relationship between the side water box and the end water box is changed by the driving component, so that the hot water can be quickly laid in each water box. When the cleaning device completes cleaning the printer nozzle, the lifting component lowers the height of the clean water box. At this time, the clean water box drives the rack to rotate, the rack is meshed with the gear, the gear drives the sealing disk to rotate, the connecting hole on the sealing disk is staggered with the water outlet pipe, and the hot water in the heating box cannot enter the clean water box, thereby reducing the excessive use of hot water. The control component has a simple structure and is easy to operate.

[0019] Optionally, a blocking member is provided on the reflux pipe to reduce the entry of UV ink into the reflux pump, and the blocking member includes a blocking box and an adsorption filter. The blocking box is arranged between the end water box and the reflux pump, the blocking box is connected to the reflux pipe, and the adsorption filter is arranged in the blocking box.

[0020] By adopting the above technical solution, the blocking member is used to centrally block and adsorb the UV ink in the end water box, and the UV ink refluxes with the hot water until it enters the blocking box. The adsorption filter is used to adsorb the UV ink, and the hot water directly passes through the adsorption filter and the reflux pump and enters the heating box again. The adsorption filter can reduce the contamination of subsequent hot water by UV ink.

[0021] Optionally, the blocking box is provided with a sliding groove for the adsorption filter to slide, and the blocking box is provided with a limiting member for limiting the sliding of the adsorption filter, the limiting member includes a limiting rod and a limiting spring, and a limiting groove is provided on the side wall of the adsorption filter, the limiting rod is slidably connected to the blocking box along a sliding direction perpendicular to the adsorption filter, and the limiting spring is used to keep the limiting rod engaged with the limiting groove.

[0022] By adopting the above technical solution, when the adsorption filter absorbs too much UV ink, the efficiency of hot water passing through the adsorption filter is reduced. The staff can replace the adsorption filter. The staff moves the limiting rod in a direction away from the limiting groove to overcome the limiting spring and make the limiting rod disengage from the limiting groove. The staff can then remove the adsorption filter from the blocking box and replace it with a new one.

[0023] Optionally, a pushing member for pushing water toward the return pipe is provided on the end water box, and the pushing member includes a pushing cylinder and a pushing plate. The pushing plate is slidably connected in the end water box along a direction approaching or moving away from the return pipe, and the pushing cylinder is used to drive the pushing plate to move.

[0024] By adopting the above technical solution, since the hot water only covers the bottom of the water box, the flow of hot water entering the reflux pump through the reflux pipe is small, and the reflux pump cannot work normally. The staff can start the pushing cylinder, and the pushing cylinder drives the pushing plate to move. The pushing plate makes the flow of hot water entering the reflux pipe increase rapidly, so that the reflux pump can work normally. The pushing member has a simple structure and is easy to operate.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. The heating component passes hot water into the water box set around the printing platform. The hot water in the water box evaporates, increasing the humidity of the surrounding air and keeping the printer nozzle moist; 2. The bottom of the water box is serrated. When the water is spread flat on the bottom of the water box, due to the tension of the water, the contact area between the water and the air is larger than the cross-sectional area of ​​the water box, which increases the evaporation efficiency of the hot water; 3. The lifting assembly is used to lift the clean water box, and changes the height of the side water box and the end water box through the driving member, so as to realize the rapid laying of water flow; 4. The water supply component is used to provide hot water, and the control component is used to control the water in the heating box to flow toward the clean water box; 5. The barrier is used to reduce the UV ink from entering the reflux pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram of a UV printer.

[0027] Figure 2 It is a schematic diagram of the structure of a humidifying device for a printer.

[0028] Figure 3 yes Figure 2 Schematic diagram of the distribution of grey water boxes.

[0029] Figure 4 yes Figure 2 Schematic diagram of the structure of the cleaning device.

[0030] Figure 5 yes Figure 4 Schematic diagram of the structure of the water supply component.

[0031] Figure 6 This is a schematic diagram of the connection between the water supply assembly and the end water box. Figure 7 yes Figure 6 Exploded view of the stop box to show the restraining parts.

[0032] Figure 8 yes Figure 3 Schematic diagram of the structure of the push component.

[0033] Figure numerals: 1, cleaning device; 11, ink pad bottom plate; 12, ink pad; 13, base; 2, water box; 21, side water box; 22, end water box; 23, cleaning water box; 24, water pipe; 3, water supply assembly; 31, heating box; 311, first through hole; 32, water outlet pipe; 33, water outlet pump; 34, return pipe; 35, return pump; 36, control member; 361, blocking plate; 362, gear; 363, rack; 364, mounting cover; 365, second through hole; 366, connecting hole; 37, water supply pipe; 4, lifting assembly; 41, lifting motor; 42. Lifting screw; 43. Sliding seat; 44. Connecting rod; 45. Driving member; 451. Driving frame; 452. First limit block; 453. Second limit block; 454. Rotating plate; 455. First limit slot; 456. Second limit slot; 5. Blocking member; 51. Blocking box; 52. Adsorption filter; 521. Limiting slot; 53. Limiting member; 531. Limiting rod; 532. Limiting spring; 533. Guide slope; 6. Pushing member; 61. Pushing cylinder; 62. Pushing plate; 7. Printer body; 71. Printer nozzle; 72. Printing platform. DETAILED DESCRIPTION

[0034] The following is combined with Figure 2 -Attached Figure 8 This application is described in further detail.

[0035] The present application embodiment discloses a humidifying device for a printer. Figure 2 and Figure 3A humidifying device for a printer includes a cleaning device 1, a water box 2, a water supply component 3 and a lifting component 4. The water box 2 includes two side water boxes 21, an end water box 22 and a cleaning water box 23. The two side water boxes 21 are respectively located on both sides of the width direction of a printing platform 72. The length direction of the side water box 21 is parallel to the length direction of the printing platform 72. The end water box 22 and the cleaning water box 23 are respectively located on both sides of the length direction of the printing platform 72. The side water box 21, the end water box 22 and the cleaning water box 23 are connected by a water pipe 24, and the water pipe 24 is a hose. The lifting component 4 is arranged on the printer body 7. The lifting component 4 is used to adjust the heights of the side water box 21, the end water box 22 and the cleaning water box 23. The cleaning device 1 is fixedly arranged on the lifting component 4. The cleaning water box 23 is located around the cleaning device 1. The cleaning device 1 is used to clean the UV ink solidified on the printer nozzle 71. The water supply component 3 is used to send hot water into the cleaning water box 23.

[0036] Reference Figure 3 and Figure 4 The lifting assembly 4 includes a lifting motor 41, a lifting screw 42, a sliding seat 43, four connecting rods 44 and a driving member 45. The length direction of the lifting screw 42 is parallel to the width direction of the printing platform 72. The lifting screw 42 is rotatably connected to the printer body 7. The lifting motor 41 is fixedly arranged on the printer body 7. One end of the lifting screw 42 is fixedly arranged on the output shaft of the lifting motor 41. The sliding seat 43 is slidably connected to the printer body 7 along the length direction of the lifting screw 42. The lifting screw 42 is threadedly connected to the sliding seat 43, the cleaning device 1 includes an ink pad bottom plate 11, four ink pads 12 and a base 13, the base 13 is slidably connected to the printer body 7 along the vertical direction, four connecting rods 44 are evenly distributed on the sliding seat 43, one end of the connecting rod 44 is rotatably connected to the sliding seat 43, and the other end of the connecting rod 44 is rotatably connected to the base 13, the ink pad bottom plate 11 is horizontally arranged, the ink pad bottom plate 11 is fixedly arranged on the upper end surface of the base 13, the four ink pads 12 are evenly distributed on the ink pad bottom plate 11, and the cleaning water box 23 is fixedly arranged around the base 13.

[0037] Reference Figure 3 and Figure 4The driving member 45 includes a driving frame 451, a first limiting block 452, a second limiting block 453 and a rotating plate 454. The rotating plate 454 is located below the printing platform 72. The rotating plate 454 is fixedly arranged on the printer body 7. The driving frame 451 is rotatably connected to the rotating plate 454 along the width direction of the printing platform 72. The two side water boxes 21 are fixedly arranged on the driving frame 451. The first limiting block 452 is fixedly arranged on the clean water box 23. The driving frame 451 is provided with a first limiting groove 455. The first limiting groove 455 extends along the length direction of the side water box 21. The first limiting block 452 is located in the first limiting groove 455. The end water box 22 is slidably connected to the printer body 7 along the vertical direction. The second limiting block 453 is fixedly arranged on the end water box 22. A second limiting groove 456 is provided, and the second limiting groove 456 extends along the length direction of the side water box 21. The second limiting block 453 is located in the second limiting groove 456. The bottom of the clean water box 23, the end water box 22 and the side water box 21 is serrated, and the water inlet and outlet of the clean water box 23, the end water box 22 and the side water box 21 are all located at the bottom. The water supply component 3 controls the liquid level of the clean water box 23, the end water box 22 and the side water box 21 to only cover the bottom. When the side water box 21 is in a horizontal state, the bottoms of the clean water box 23, the end water box 22 and the side water box 21 are flush. When the lifting component lifts the height of the clean water box 23, the heights of the clean water box 23, the side water box 21 and the end water box 22 are reduced in turn, and the height of the side water box 21 gradually decreases from the clean water box 23 to the end water box 22.

[0038] Reference Figure 5 and Figure 6The water supply assembly 3 includes a heating box 31, a water outlet pipe 32, a water outlet pump 33, a return pipe 34, a return pump 35 and a water supply pipe 37. The heating box 31 is fixedly arranged on the printer body 7. A heating pipe for heating water is fixedly arranged in the heating box 31. The heating box 31 is also provided with a control member 36 for controlling the water flow into the water outlet pipe 32. The control member 36 includes a blocking plate 361, a gear 362, a rack 363 and a mounting cover 364. The mounting cover 364 is fixedly arranged in the heating box 31. A cavity is formed between the mounting cover 364 and the heating box 31. A first through hole 311 is provided on the heating box 31. A second through hole 365 is provided on the mounting cover 364. The first through hole 311 is coaxially arranged with the second through hole 365 and eccentrically arranged with the axis of the mounting cover 364. The blocking plate 361 is located in the cavity. A connecting hole 366 is provided on the blocking plate 361 The connecting hole 366 is used to connect the first through hole 311 and the second through hole 365. The gear 362 is coaxially arranged with the sealing disk 361. The gear 362 is fixedly arranged on the sealing disk 361. The rack 363 is fixedly arranged on the clean water box 23. The rack 363 and the gear 362 are kept in meshing. One end of the water outlet pipe 32 is connected with the second through hole 365, and the other end of the water outlet pipe 32 is connected with the clean water box 23. The water outlet pump 33 is connected with the water outlet pipe 32, and the water outlet pump 33 is fixedly arranged on the clean water box 23. One end of the reflux pipe 34 is fixedly arranged on the end water box 22, and the other end of the reflux pipe 34 is fixedly arranged in the heating box 31. The reflux pump 35 is connected with the reflux pipe 34, and the reflux pump 35 is fixedly arranged on the printer body 7. One end of the water adding pipe 37 is fixedly arranged on the heating box 31, and the water adding pipe 37 is used to receive water from the outside into the heating box 31.

[0039] Reference Figure 6 and Figure 7 The reflux pipe 34 is provided with a blocking member 5 for blocking UV ink, the blocking member 5 includes a blocking box 51 and an adsorption filter 52, the blocking box 51 is fixedly arranged on the printer body 7, the blocking box 51 is connected with the reflux pipe 34, a sliding groove is provided on the upper end surface of the blocking box 51, the adsorption filter 52 is installed in the blocking box 51 through the sliding groove, and a limiting member 53 for limiting the sliding of the adsorption filter 52 is provided on the blocking box 51, the limiting member 53 includes a limiting rod 531 and a limiting spring 532, and the limiting rod 531 is provided on the printer body 7, and the limiting rod 532 is provided on the printer body 7. The limiting rod 531 is arranged horizontally, the limiting rod 531 penetrates into the blocking box 51, the limiting spring 532 is arranged coaxially with the limiting rod 531, one end of the limiting spring 532 is fixedly arranged on the limiting rod 531, and the other end of the limiting spring 532 is fixedly arranged on the blocking box 51, and a limiting groove 521 is provided on the side wall of the adsorption filter 52, and the limiting groove 521 is used to clamp with one end of the blocking rod, and a guiding inclined surface 533 is provided between one end of the limiting rod 531 facing the limiting groove 521 and the upper end surface of the blocking rod.

[0040] Reference Figure 3 and Figure 8 A pushing member 6 for pushing hot water toward the return pipe 34 is provided in the end water box 22. The pushing member 6 includes a pushing cylinder 61 and a pushing plate 62. The pushing plate 62 is slidably connected to the end water box 22 along a direction approaching or moving away from the return pipe 34. The length of the pushing cylinder 61 is parallel to the sliding direction of the pushing plate 62. The pushing cylinder 61 is fixedly provided on the end water box 22, and the piston rod of the pushing cylinder 61 is fixedly connected to the pushing plate 62.

[0041] The implementation principle of a humidifying device for a printer in an embodiment of the present application is: the hot water in the heating tube is heated by the heating tube. When the printer nozzle 71 needs to be cleaned, the staff first moves the printer nozzle 71 above the cleaning device 1, and then starts the lifting motor 41. The lifting motor 41 drives the lifting screw 42 to rotate, and the lifting screw 42 mobilizes the sliding seat 43 to move. The sliding seat 43 drives the connecting rod 44 to rotate, and the connecting rod 44 drives the base 13 to rise until the ink pad 12 of the cleaning device 1 contacts the printer nozzle 71, so as to clean the solidified UV ink on the printer nozzle 71.

[0042] At the same time, the clean water box 23 rises and drives the rack 363 to move, the rack 363 drives the gear 362 to rotate, the gear 362 drives the blocking plate 361 to rotate, and the connecting hole 366 of the blocking plate 361 connects the first through hole 311 with the second through hole 365, and the hot water enters the clean water box 23 through the water outlet pump 33, and the end water box 22 is moved downward by the driving member 45, and the side water box 21 is tilted, and the hot water quickly passes through the clean water box 23 and enters the side water box 21 and the end water box 22. The hot water containing UV ink quickly moves to the end water box 22. When the nozzle is cleaned, the staff lowers the height of the cleaning device 1 by lifting the component 4 until the bottom heights of the cleaning water box 23, the side water box 21 and the end water box 22 are consistent. At this time, hot water is still retained in the cleaning water box 23, the side water box 21 and the end water box 22. When the printer nozzle 71 is working subsequently, the hot water evaporates, making the air around the printer humid, reducing the UV ink from solidifying on the printer nozzle 71 again.

[0043] The hot water mixed with UV ink in the end water box 22 can be refluxed through the reflux pump 35. The UV ink will be intercepted by the adsorption filter 52 during the reflux process. When too much UV ink is adsorbed on the adsorption filter 52, the staff can remove the adsorption filter 52 through the limiting part 53 to replace the adsorption filter 52.

[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A humidifying device for a printer, characterized in that: It comprises a water box (2) and a water supply component (3), wherein the water box (2) is arranged on the peripheral side of a printing platform (72), and the water supply component (3) is used to provide hot water into the water box (2).

2. A humidifying device for a printer according to claim 1, characterized in that: A cleaning device (1) for cleaning a printer nozzle (71) is provided on a printer body (7), the cleaning device being provided on one end of the printer body (7), the water box (2) comprising two side water boxes (21), an end water box (22) and a cleaning water box (23), the cleaning water box (23) being provided around the cleaning device (1), the two side water boxes (21) being respectively located on both sides of a printing platform (72), the side water boxes (21) being provided on the printer body (7), the end water box (22) being provided at one end of the printer body (7) away from the cleaning device (1), the side water boxes (21), the end water box (22) and the cleaning water box (23) being connected via a water pipe (24).

3. A humidifying device for a printer according to claim 2, characterized in that: The bottoms of the side water box (21), the end water box (22) and the clean water box (23) are all in a sawtooth shape; the water inlets and outlets of the side water box (21), the end water box (22) and the clean water box (23) are all located at the bottom; the water supply component (3) controls the water to flow out after it submerges the sawtooth bottom.

4. A humidifying device for a printer according to claim 2, characterized in that: The printer body (7) is provided with a lifting component (4) for driving the clean water box (23) to move vertically. The lifting component (4) includes a lifting motor (41), a lifting screw (42), a sliding seat (43) and a connecting rod (44). The sliding seat (43) is connected to the printer body (7) in a sliding manner in a horizontal direction. The length direction of the lifting screw (42) is in the sliding direction of the sliding seat (43). The lifting screw (42) is rotatably connected to the printer body (7). The sliding seat (43) is threadedly connected to the lifting screw (42). The lifting motor (41) is used to drive the lifting screw (42) to rotate. One end of the connecting rod (44) is rotatably connected to the sliding seat (43), and the other end of the connecting rod (44) is rotatably connected to the clean water box (23).

5. A humidifying device for a printer according to claim 4, characterized in that: The lifting assembly (4) further comprises a driving member (45) for driving the end water box (22) to move, the driving member (45) comprising a driving frame (451), a first limit block (452) and a second limit block (453), the two side water boxes (21) are both arranged on the driving frame (451), the driving frame (451) is rotatably connected to the printer body (7) along the width direction of the printer body (7), the first limit block (452) is arranged on the cleaning water box (23), the first limit block (452) is slidably connected to the driving frame (451) along the length direction of the driving frame (451), the second limit block (453) is arranged on the end water box (22), the second limit block (453) is slidably connected to the driving frame (451) along the length direction of the driving frame (451).

6. A humidifying device for a printer according to claim 2, characterized in that: The water supply assembly (3) comprises a heating box (31), a water outlet pipe (32), a water outlet pump (33), a return pipe (34), a return pump (35) and a water supply pipe (37). The heating box (31) is arranged on the printer body (7). A heating pipe is arranged in the heating box (31). One end of the water outlet pipe (32) is arranged on the heating box (31), and the other end of the water outlet pipe (32) is arranged on the clean water box (23). The water outlet pump (33) is arranged on the water outlet pipe (32). One end of the return pipe (34) is arranged on the end water box (22), and the other end of the return pipe (34) is arranged in the heating box (31). The return pump (35) is arranged on the return pipe (34). The water supply pipe (37) is used to pass water into the heating box (31).

7. A humidifying device for a printer according to claim 6, characterized in that: The heating box (31) is provided with a control member (36) for controlling water to enter the water outlet pipe (32); the control member (36) comprises a blocking disk (361), a gear (362) and a rack (363); the blocking disk (361) is rotatably connected to the heating box (31); the blocking disk (361) is used to block the water outlet pipe (32); a connecting hole (366) for connecting the water outlet pipe (32) and the heating box (31) is provided on the blocking disk (361); the gear (362) is provided on the blocking disk (361); the rack (363) is provided on the clean water box (23); and the rack (363) is meshed with the gear (362).

8. A humidifying device for a printer according to claim 6, characterized in that: The return pipe (34) is provided with a blocking member (5) for reducing UV ink from entering the return pump (35); the blocking member (5) comprises a blocking box (51) and an adsorption filter (52); the blocking box (51) is arranged between the end water box (22) and the return pump (35); the blocking box (51) is communicated with the return pipe (34); and the adsorption filter (52) is arranged in the blocking box (51).

9. A humidifying device for a printer according to claim 8, characterized in that: The blocking box (51) is provided with a sliding groove for the adsorption filter (52) to slide, and the blocking box (51) is provided with a limiting member (53) for limiting the sliding of the adsorption filter (52), and the limiting member (53) comprises a limiting rod (531) and a limiting spring (532). A limiting groove (521) is provided on the side wall of the adsorption filter (52), and the limiting rod (531) is connected to the blocking box (51) by sliding along a direction perpendicular to the sliding direction of the adsorption filter (52), and the limiting spring (532) is used to keep the limiting rod (531) engaged with the limiting groove (521).

10. A humidifying device for a printer according to claim 6, characterized in that: The end water box (22) is provided with a pushing member (6) for pushing water toward the return pipe (34); the pushing member (6) comprises a pushing cylinder (61) and a pushing plate (62); the pushing plate (62) is slidably connected to the end water box (22) in a direction approaching or moving away from the return pipe (34); the pushing cylinder (61) is used to drive the pushing plate (62) to move.

Images