Humidifying device for printing sample paper

Abstract

The invention relates to the technical field of printing, and particularly discloses a humidifying device for a printing sample page. A humidifying mechanism is installed in the middle of the bottom end of the humidifying box, an ironing mechanism is installed on one side of the top end of the humidifying box, and an adjusting mechanism is installed on the other side of the top inner wall of the humidifying box; the humidifying mechanism comprises a heating water tank, a water pump, a water conveying pipe, a humidifier and a water inlet pipe. The heating water tank is installed in the middle of the bottom end of the humidifying box. A water pump is started to be matched with flow dividing of a water conveying pipe and a flow dividing pipe, hot water flows into a humidifying pipe and an ironing mechanism in a flow dividing mode, then a trace amount of water can be evenly sprayed to the two faces of a printing sample page through atomization nozzles distributed up and down, the humidity of the sample page is increased, ink can be better fixed to the sample page, and the printing quality is improved. And meanwhile, uniform distribution of humidity inside and outside the sample paper is promoted, curling is reduced, the situation that the humidity of partial areas is too high or too low is avoided, and then the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of printing, and in particular relates to a humidifying device for printing proofs. Background Art

[0002] Printing is a technology that transfers ink from originals such as text, drawings, and photos to the surfaces of materials such as samples, fabrics, plastics, and leather through processes such as plate making, inking, and pressurization. When there is a difference in tension between the side covered by the printing ink and the other side without ink, this uneven tension phenomenon is particularly obvious during the ink drying process, which will cause the sample to curl up or lie down. Specifically, the sample cannot maintain the required flatness after drying, and the overall shape does not meet the standard, which in turn affects the product's appearance quality and market acceptance. In order to solve this problem, a humidifier is usually used to humidify the printed sample.

[0003] In the Chinese patent with publication number CN214606544U, a printing sample humidifying device is mentioned, which adds a humidifier under the conveyor belt, uses the atomizing nozzle of the humidifier to spray water mist atomized by the ultrasonic atomizer, humidifies the conveyor belt, keeps the conveyor belt at a certain humidity, and uses the conveyor belt and the surrounding air to humidify the sample transported above the conveyor belt; However, the humidifying device has limitations when in use, namely, it can only humidify one side of the sample, which results in uneven humidification of the sample, uneven humidity distribution, and excessively high or low humidity in some areas, which in turn has an adverse effect on production efficiency and product quality. Summary of the invention

[0004] The object of the present invention is to provide a humidifying device for printing a sample sheet, which has the function of humidifying both sides of the sample sheet to solve the problem of uneven humidification of the sample sheet.

[0005] To achieve the above object, the present invention provides the following technical solutions: A humidifying device for printing a sample sheet, comprising: Humidifier box; A humidifying mechanism is installed at the middle of the bottom end of the humidifying box, an ironing mechanism is installed at one side of the top end of the humidifying box, and an adjusting mechanism is installed at the other side of the top inner wall of the humidifying box; The humidifying mechanism includes a heating water tank, a water pump, a water pipe, a humidifier and a water inlet pipe. The heating water tank is installed in the middle of the bottom end of the humidifying tank, the water pump is installed in the lower part of the outer wall of the heating water tank, the water pipe is installed in the middle of the outer wall of the water pump, the humidifier is installed at the top of the water pipe, and the humidifier is installed between the inner walls on both sides of the humidifying tank, and the water inlet pipe is installed on the upper part of the outer wall on the other side of the heating water tank.

[0006] Preferably, an inlet and outlet are provided in the middle of both ends of the humidifier box, supporting feet are installed on both sides of the bottom end of the humidifier box, limiting grooves are provided on the inner walls on both sides of the humidifier box, a guide groove is provided on the outer wall of one side of the humidifier box, a controller is installed on the other side of the outer wall of the humidifier box, and two guide rollers are installed between the inner walls on both sides of the humidifier box through bearings.

[0007] Preferably, the humidifier includes a shunt pipe, a folded pipe, a humidifying pipe and an atomizing nozzle. The shunt pipe is installed at the top of the water supply pipe, the folded pipe is arranged in the middle of the outer surface of the shunt pipe, two humidifying pipes are provided, and the two humidifying pipes are respectively installed at the other two ends of the shunt pipe, the lower humidifying pipe is installed between the inner walls on both sides of the humidification box, and a plurality of atomizing nozzles are provided, and the plurality of atomizing nozzles are respectively installed on both sides of the opposite surfaces of the two humidifying pipes.

[0008] Preferably, the diverter pipe is configured as an F-type structure, and the upper portion of the outer surface of the diverter pipe is slidably connected to the guide groove, the humidifying pipe is configured as an I-shaped structure, the atomizing nozzle, the heating water tank and the water pump are all electrically connected to the controller, the top surface of the atomizing nozzle on the lower side is lower than the top surface of the guide roller, and the water supply pipe is configured as a Y-type structure.

[0009] Preferably, the ironing mechanism includes a moving frame, an electric push rod, an upper ironing cylinder, a first moving pipe and a return pipe, two electric push rods are provided, both of the two electric push rods are installed at the top of the moving frame, and both of the two electric push rods are installed on the top box wall of the humidification box, the upper ironing cylinder is installed between the inner walls on both sides of the moving frame through a bearing, the first moving pipe is installed at one end of the upper ironing cylinder through a bearing, the return pipe is installed at the bottom end of the first moving pipe, and the other end of the return pipe is installed on the upper part of the outer wall of the heating water tank.

[0010] Preferably, the other end of the upper ironing cylinder is installed with a second movable tube via a bearing, the bottom end of the second movable tube is installed with a connecting tube, the other end of the connecting tube passes through the inner wall of the humidification box and is installed with a lower ironing cylinder via a bearing, and the other end of the lower ironing cylinder is installed together with the other end of the water pipe via a bearing, and the lower ironing cylinder is installed between the inner walls on both sides of the humidification box via a bearing.

[0011] Preferably, the lower parts of the outer surfaces of the second movable tube and the first movable tube are both arranged as folding structures, the top end surface of the lower ironing cylinder is flush with the top end surface of the guide roller, and the electric push rod is electrically connected to the controller.

[0012] Preferably, the adjusting mechanism includes a fixed frame, a driver, forward and reverse screw rods, a movable frame, an adjusting frame and a connecting frame, the fixed frame is installed on the top inner wall of the humidification box, the driver is installed at one end of the fixed frame, the forward and reverse screw rods are installed between the inner walls on both sides of the fixed frame through bearings, two of the movable frame and the adjusting frame are provided, the two movable frames are respectively installed on both sides of the outer surface of the forward and reverse screw rods, the two adjusting frames are respectively installed on the lower part of the outer surface of the two movable frames through connecting shafts, a plurality of connecting frames are provided, and the plurality of connecting frames are respectively installed on the lower part of the outer surface of the two adjusting frames through connecting shafts, and the bottom ends of the plurality of connecting frames are all installed on the top end of the upper humidification tube.

[0013] Preferably, the driver is electrically connected to the controller, the movable frame is configured as an H-shaped structure, and the adjustment frame is configured as a W-shaped structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention sets a humidifying mechanism inside the humidifying box. By starting the water pump and coordinating the diversion of the water pipe and the diversion pipe, the hot water is diverted into the humidifying pipe and the ironing mechanism. Then, atomizing nozzles distributed up and down can be used to evenly spray a trace amount of water on both sides of the printed sample, thereby increasing the humidity of the sample, helping the ink to be better fixed on the sample, and promoting the uniform distribution of humidity inside and outside the sample, reducing curling, and avoiding the situation where the humidity in some areas is too high or too low, thereby improving production efficiency and product quality.

[0015] (2) The present invention sets an ironing mechanism inside the humidifying box. The upper ironing cylinder is pushed downward to contact the sample by the extension of the electric push rod. Then the hot water flows into the lower ironing cylinder and the upper ironing cylinder in turn to iron and flatten the humidified sample together, thereby helping the sample to fix its shape and enhance the structural stability of the sample. It can also further eliminate static electricity, making the sample easier to print and significantly improving the printing effect.

[0016] (3) The present invention sets an adjustment mechanism inside the humidification box, which can adjust the distance between the two movable frames by driving the forward and reverse screws to rotate through the driver, so that the adjustment frame can pull the upper humidification tube upward and push it downward to adjust the position of the upper atomizing nozzle, thereby ensuring that the atomizing nozzle can maintain an appropriate distance from samples of different thicknesses and types, thereby expanding the application range of the humidification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 is a cross-sectional view of the humidification box of the present invention; Figure 3 is a three-dimensional diagram of the humidification mechanism of the present invention; Figure 4is a three-dimensional diagram of a humidifier of the present invention; Figure 5 is a three-dimensional diagram of the ironing mechanism of the present invention; Figure 6 For the present invention Figure 2 A magnified view of middle; Figure 7 is a three-dimensional diagram of the adjustment mechanism of the present invention; In the figure: 1. Humidification box; 2. Humidification mechanism; 3. Ironing mechanism; 4. Adjustment mechanism; 5. Inlet and outlet; 6. Support foot; 7. Limiting groove; 8. Guide groove; 9. Controller; 10. Guide roller; 21. Heating water tank; 22. Water pump; 23. Water pipe; 24. Humidifier; 25. Water inlet pipe; 241, shunt pipe; 242, folding pipe; 243, humidifying pipe; 244, atomizing nozzle; 31. Moving frame; 32. Electric push rod; 33. Upper ironing cylinder; 34. First moving pipe; 35. Return pipe; 36. Second moving pipe; 37. Connecting pipe; 38. Lower ironing cylinder; 41. Fixed frame; 42. Driver; 43. Forward and reverse screw rods; 44. Moving frame; 45. Adjusting frame; 46. Connecting frame. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1:

[0020] See also Figures 1 to 7 As shown, a humidifying device for printing a sample sheet comprises: Humidifier box 1; A humidifying mechanism 2 is installed at the middle of the bottom end of the humidifying box 1, an ironing mechanism 3 is installed at one side of the top end of the humidifying box 1, and an adjusting mechanism 4 is installed at the other side of the top inner wall of the humidifying box 1; The humidifying mechanism 2 includes a heating water tank 21, a water pump 22, a water pipe 23, a humidifier 24 and a water inlet pipe 25. The heating water tank 21 is installed in the middle of the bottom end of the humidifying tank 1, the water pump 22 is installed in the lower part of the outer wall of the heating water tank 21, the water pipe 23 is installed in the middle of the outer wall of the water pump 22, the humidifier 24 is installed at the top of the water pipe 23, and the humidifier 24 is installed between the inner walls on both sides of the humidifying tank 1, and the water inlet pipe 25 is installed on the upper part of the outer wall on the other side of the heating water tank 21.

[0021] Depend on Figures 1 to 4 It can be seen that an inlet and outlet 5 is provided in the middle of both ends of the humidifying box 1, supporting feet 6 are installed on both sides of the bottom end of the humidifying box 1, limiting grooves 7 are provided on both sides of the inner wall of the humidifying box 1, a guide groove 8 is provided on one side of the outer wall of the humidifying box 1, a controller 9 is installed on the other side of the outer wall of the humidifying box 1, and two guide rollers 10 are installed between the inner walls of both sides of the humidifying box 1 through bearings; The humidifier 24 includes a shunt pipe 241, a folded pipe 242, a humidifying pipe 243 and an atomizing nozzle 244. The shunt pipe 241 is installed at the top of the water supply pipe 23, the folded pipe 242 is arranged in the middle of the outer surface of the shunt pipe 241, two humidifying pipes 243 are provided, and the two humidifying pipes 243 are respectively installed at the other two ends of the shunt pipe 241, the lower humidifying pipe 243 is installed between the inner walls on both sides of the humidification box 1, and a plurality of atomizing nozzles 244 are provided, and the plurality of atomizing nozzles 244 are respectively installed on both sides of the opposite surfaces of the two humidifying pipes 243.

[0022] As can be seen from the above, first, the sample to be printed can be extended into the humidification box 1 through the inlet and outlet 5 on one side, the sample bypasses the top of the guide roller 10 on one side, then passes through the humidification mechanism 2 and the ironing mechanism 3, bypasses the top of the guide roller 10 on the other side, and passes out of the humidification box 1 through the inlet and outlet 5 on the other side. When the sample needs to be humidified, water can be input into the heating water tank 21 through the water inlet pipe 25 for heating, and then the controller 9 controls the water pump 22 to start, extract the hot water in the heating water tank 21, and the hot water is diverted to the diversion pipe 241 and the ironing mechanism 3 through the water delivery pipe 23. At this time, the hot water is diverted to the two humidification pipes 243 through the diversion pipe 241. In the process, the hot water is finally atomized and sprayed out through multiple atomizing nozzles 244, and the multiple atomizing nozzles 244 are respectively distributed on the upper and lower sides of the printed sample, so as to evenly spray a small amount of water on both sides of the printed sample at the same time, so as to achieve the purpose of increasing the humidity of the sample. The atomized hot water can effectively increase the moisture of the sample, improve the uniformity of the sample humidification, avoid the sample from falling off and breaking, ensure the processing effect of the sample, and help the ink to be better fixed on the sample. At the same time, it can also promote the uniform distribution of humidity inside and outside the sample, reduce curling, and thus avoid the situation where the humidity in some areas of the sample is too high or too low, which is beneficial to the subsequent printing processing of the sample, thereby improving production efficiency and product quality.

[0023] Specifically, refer to Figures 1 to 4 As shown, the diverter pipe 241 is configured as an F-type structure, and the upper outer surface of the diverter pipe 241 is slidably connected to the guide groove 8, the humidifying pipe 243 is configured as an I-shaped structure, the atomizing nozzle 244, the heating water tank 21 and the water pump 22 are all electrically connected to the controller 9, the top end surface of the lower atomizing nozzle 244 is lower than the top end surface of the guide roller 10, and the water supply pipe 23 is configured as a Y-type structure.

[0024] As can be seen from the above, the F-shaped diverter pipe 241 enables water to be evenly diverted to the two humidifying pipes 243, ensuring that the diverter pipe 241 can move smoothly in the guide groove 8. The I-shaped structure can enhance the strength and stability of the humidifying pipe 243, while facilitating its installation and connection with the water pipe 23, realizing the electrical control operation of the atomizing nozzle 244, the heating water tank 21 and the water pump 22, maintaining an appropriate distance between the atomizing nozzle 244 and the sample, and realizing effective humidification processing. The Y-shaped structure enables the water pipe 23 to divide the water flow into two paths.

[0025] Embodiment 2:

[0026] refer to Figure 5 and Figure 6 As shown, the ironing mechanism 3 includes a moving frame 31, an electric push rod 32, an upper ironing cylinder 33, a first moving pipe 34 and a return pipe 35. Two electric push rods 32 are provided, and the two electric push rods 32 are both installed at the top of the moving frame 31, and the two electric push rods 32 are both installed on the top box wall of the humidifying box 1. The upper ironing cylinder 33 is installed between the inner walls on both sides of the moving frame 31 through a bearing, the first moving pipe 34 is installed at one end of the upper ironing cylinder 33 through a bearing, the return pipe 35 is installed at the bottom end of the first moving pipe 34, and the other end of the return pipe 35 is installed on the upper part of the outer wall of the heating water tank 21; The other end of the upper ironing cylinder 33 is installed with a second moving tube 36 through a bearing, and a connecting tube 37 is installed at the bottom end of the second moving tube 36. The other end of the connecting tube 37 passes through the inner wall of the humidification box 1 and is installed with a lower ironing cylinder 38 through a bearing. The other end of the lower ironing cylinder 38 is installed together with the other end of the water pipe 23 through a bearing. The lower ironing cylinder 38 is installed between the inner walls on both sides of the humidification box 1 through a bearing.

[0027] As can be seen from the above, first, the hot water enters the lower ironing cylinder 38 through the water delivery pipe 23, and then the hot water flows through the connecting pipe 37 and the second moving pipe 36 in sequence to enter the upper ironing cylinder 33. Finally, the hot water flows into the return pipe 35 through the first moving pipe 34, so that the hot water flows back to the heating water tank 21 for reheating, which can realize the circulation of hot water. At the same time, the controller 9 controls the electric push rod 32 to start, and the electric push rod 32 extends to push the moving frame 31 to move downward, which can drive the upper ironing cylinder 33 to move downward to contact the sample, and through the first moving pipe 34 and the second moving pipe 36, the hot water flows into the return pipe 35, so that the hot water flows back to the heating water tank 21 for reheating, which can realize the circulation of hot water. The folding structure on the moving tube 36 can facilitate the movement of the upper ironing cylinder 33 while ensuring the transmission of hot water, so that the upper ironing cylinder 33 and the lower ironing cylinder 38 can roll together to hot-iron and flatten the humidified sample, thereby helping the sample to fix its shape, making the fibers of the sample become tighter and flatter due to the effects of heat and pressure, enhancing the structural stability of the sample, and helping to reduce static electricity on the surface of the sample, further eliminating static electricity, making the sample easier to print, and for the sample that needs to be printed, the combination of humidification and hot ironing can significantly improve the printing effect.

[0028] Preferably, reference Figure 5 and Figure 6 As shown, the lower outer surfaces of the second moving tube 36 and the first moving tube 34 are both arranged as folding structures, the top end surface of the lower ironing cylinder 38 is flush with the top end surface of the guide roller 10 , and the electric push rod 32 is electrically connected to the controller 9 .

[0029] As can be seen from the above, the movement of the second movable tube 36 and the first movable tube 34 is facilitated, ensuring that the lower ironing cylinder 38 and the guide roller 10 work on the same horizontal plane and are in contact with the sample, realizing the electric control operation of the electric push rod 32, and facilitating the adjustment of the position of the upper ironing cylinder 33.

[0030] Embodiment three:

[0031] refer to Figure 7 As shown, the adjustment mechanism 4 includes a fixed frame 41, a driver 42, a forward and reverse screw rod 43, a movable frame 44, an adjustment frame 45 and a connecting frame 46. The fixed frame 41 is installed on the top inner wall of the humidification box 1, the driver 42 is installed at one end of the fixed frame 41, the forward and reverse screw rods 43 are installed between the inner walls on both sides of the fixed frame 41 through bearings, and two movable frames 44 and two adjustment frames 45 are provided. The two movable frames 44 are respectively installed on both sides of the outer surface of the forward and reverse screw rods 43, and the two adjustment frames 45 are respectively installed on the lower part of the outer surface of the two movable frames 44 through connecting shafts. There are multiple connecting frames 46, and the multiple connecting frames 46 are respectively installed on the lower part of the outer surface of the two adjusting frames 45 through connecting shafts, and the bottom ends of the multiple connecting frames 46 are all installed on the top of the humidification tube 243 on the upper side.

[0032] As can be seen from the above, the controller 9 controls the driver 42 to start, so that the driver 42 drives the forward and reverse screw rods 43 to rotate, and the two movable frames 44 can be driven to move toward the middle to adjust the spacing, so that the two adjusting frames 45 can push the upper humidifying tube 243 downward together, and the position of the upper atomizing nozzle 244 can be adjusted to make the spacing from the bottom end surface of the upper atomizing nozzle 244 to the top end surface of the sample and the spacing from the top end surface of the lower atomizing nozzle 244 to the bottom end surface of the sample consistent, which is conducive to uniform humidification of the sample. Conversely, starting the driver 42 to rotate in the opposite direction can pull the upper humidifying tube 243 upward, and the position of the upper atomizing nozzle 244 can be flexibly adjusted according to the samples of different thicknesses, ensuring that the atomizing nozzle 244 and samples of different thicknesses and types can maintain an appropriate spacing, thereby expanding the scope of application of the humidifying device and improving flexibility.

[0033] Preferably, reference Figure 7 As shown, the driver 42 is electrically connected to the controller 9 , the moving frame 44 is configured as an H-shaped structure, and the adjusting frame 45 is configured as a W-shaped structure.

[0034] As can be seen from the above, the electrical control connection between the driver 42 and the controller 9 is realized, and the H-shaped structure may be used to enhance the strength and stability of the movable frame 44, while facilitating its sliding connection with the fixed frame 41 to achieve limiting. The adjustment frame 45 with a W-shaped structure can provide more connection points and support points, which is convenient for adjusting the humidification tube 243 on the upper side.

[0035] Application examples: This design is applied to the post-production environment of the printing industry, especially in those scenarios with extremely high requirements for the quality of printed products, such as high-end commercial printing plants, publishing industry, art reproduction studios and packaging printing companies. This design sets a humidifying mechanism 2 and uses an atomizing nozzle 244 to evenly spray a trace amount of water on both sides of the printed sample to increase the humidity of the sample, which helps the ink to be better fixed on the sample, while promoting the uniform distribution of humidity inside and outside the sample and reducing curling. The adjustment mechanism 4 allows the position of the atomizing nozzle 244 to be flexibly adjusted according to the thickness of the sample, ensuring different thicknesses and different All types of samples can be properly processed, which improves the versatility and flexibility of the equipment. The sample is ironed by the heat of the hot water circulation of the ironing mechanism 3, and the humidified sample can be gently and evenly flattened with the adjustable upper ironing cylinder 33, which can not only eliminate wrinkles on the surface of the sample, but also reduce static electricity on the surface of the sample by slight heating, making the sample more fit and convenient for subsequent printing or processing operations. This design is particularly suitable for environments that pursue high-quality printing output, and can effectively improve the overall quality of printed products and meet the market's growing demand for high-quality printed products.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A humidifying device for printing proofs, characterized in that: include: Humidifier box (1); A humidifying mechanism (2) is installed in the middle of the bottom end of the humidifying box (1), an ironing mechanism (3) is installed on one side of the top end of the humidifying box (1), and an adjusting mechanism (4) is installed on the other side of the top inner wall of the humidifying box (1); The humidifying mechanism (2) comprises a heating water tank (21), a water pump (22), a water pipe (23), a humidifier (24) and a water inlet pipe (25); the heating water tank (21) is mounted at the middle of the bottom end of the humidifying tank (1); the water pump (22) is mounted at the lower part of the outer wall of the heating water tank (21); the water pipe (23) is mounted at the middle of the outer wall of the water pump (22); the humidifier (24) is mounted at the top of the water pipe (23); and the humidifier (24) is mounted between the inner walls on both sides of the humidifying tank (1); and the water inlet pipe (25) is mounted at the upper part of the outer wall on the other side of the heating water tank (21).

2. A humidifying device for printing proofs according to claim 1, characterized in that: An inlet and outlet (5) are provided in the middle of both ends of the humidifying box (1), supporting feet (6) are installed on both sides of the bottom end of the humidifying box (1), limiting grooves (7) are provided on both inner walls of the humidifying box (1), a guide groove (8) is provided on one outer wall of the humidifying box (1), a controller (9) is installed on the other side of the outer wall of the humidifying box (1), and two guide rollers (10) are installed between the inner walls of the two sides of the humidifying box (1) via bearings.

3. A humidifying device for printing proofs according to claim 2, characterized in that: The humidifier (24) comprises a shunt pipe (241), a folded pipe (242), a humidifying pipe (243) and an atomizing nozzle (244); the shunt pipe (241) is installed at the top end of the water delivery pipe (23); the folded pipe (242) is arranged in the middle of the outer surface of the shunt pipe (241); two humidifying pipes (243) are provided, and the two humidifying pipes (243) are respectively installed at the other two ends of the shunt pipe (241); the lower humidifying pipe (243) is installed between the inner walls of the humidifying box (1) on both sides; a plurality of atomizing nozzles (244) are provided, and the plurality of atomizing nozzles (244) are respectively installed on the opposite sides of the two humidifying pipes (243).

4. A humidifying device for printing proofs according to claim 3, characterized in that: The diverter pipe (241) is configured as an F-type structure, and the upper portion of the outer surface of the diverter pipe (241) is slidably connected to the guide groove (8), the humidifying pipe (243) is configured as an I-shaped structure, the atomizing nozzle (244), the heating water tank (21) and the water pump (22) are all electrically connected to the controller (9), the top end surface of the atomizing nozzle (244) at the lower side is lower than the top end surface of the guide roller (10), and the water delivery pipe (23) is configured as a Y-type structure.

5. A humidifying device for printing proofs according to claim 1, characterized in that: The ironing mechanism (3) comprises a moving frame (31), an electric push rod (32), an upper ironing cylinder (33), a first moving pipe (34) and a return pipe (35). Two electric push rods (32) are provided, and the two electric push rods (32) are both mounted on the top of the moving frame (31), and the two electric push rods (32) are both mounted on the top box wall of the humidifying box (1). The upper ironing cylinder (33) is mounted between the inner walls on both sides of the moving frame (31) via a bearing, the first moving pipe (34) is mounted on one end of the upper ironing cylinder (33) via a bearing, the return pipe (35) is mounted on the bottom end of the first moving pipe (34), and the other end of the return pipe (35) is mounted on the upper part of the outer wall of the heating water tank (21).

6. A humidifying device for printing proofs according to claim 5, characterized in that: The other end of the upper ironing cylinder (33) is mounted with a second moving tube (36) via a bearing, the bottom end of the second moving tube (36) is mounted with a connecting tube (37), the other end of the connecting tube (37) passes through the inner wall of the humidifying box (1) and is mounted with a lower ironing cylinder (38) via a bearing, and the other end of the lower ironing cylinder (38) is mounted together with the other end of the water delivery pipe (23) via a bearing, and the lower ironing cylinder (38) is mounted between the inner walls of both sides of the humidifying box (1) via a bearing.

7. A humidifying device for printing proofs according to claim 6, characterized in that: The lower parts of the outer surfaces of the second movable tube (36) and the first movable tube (34) are both arranged as folding structures, the top end surface of the lower ironing cylinder (38) is flush with the top end surface of the guide roller (10), and the electric push rod (32) is electrically connected to the controller (9).

8. A humidifying device for printing proofs according to claim 1, characterized in that: The regulating mechanism (4) comprises a fixed frame (41), a driver (42), a forward and reverse screw rod (43), a movable frame (44), an regulating frame (45) and a connecting frame (46); the fixed frame (41) is mounted on the top inner wall of the humidifying box (1); the driver (42) is mounted on one end of the fixed frame (41); the forward and reverse screw rod (43) is mounted between the inner walls on both sides of the fixed frame (41) via bearings; two movable frames (44) and two regulating frames (45) are each provided with two; the two movable frames (44) are respectively mounted on both sides of the outer surface of the forward and reverse screw rod (43); the two regulating frames (45) are respectively mounted on the lower part of the outer surface of the two movable frames (44) via connecting shafts; a plurality of connecting frames (46) are provided, and the plurality of connecting frames (46) are respectively mounted on the lower part of the outer surface of the two regulating frames (45) via connecting shafts; and the bottom ends of the plurality of connecting frames (46) are all mounted on the top end of the humidifying tube (243) on the upper side.

9. A humidifying device for printing proofs according to claim 8, characterized in that: The driver (42) is electrically connected to the controller (9), the movable frame (44) is configured as an H-shaped structure, and the adjustment frame (45) is configured as a W-shaped structure.

Images