A moisturizing device and a moisturizing method

Abstract

The application discloses a kind of moisturizing device and moisturizing method, it is related to sand core manufacturing technical field.The moisturizing device includes box and moisturizing component.The first opening is opened in one side plate of the box;The moisturizing component includes at least two rotating shafts and moisturizing belt, the moisturizing belt is set around the box, and can be tensioned by the rotating shaft and move around the box, the first avoiding hole is opened in the moisturizing belt, when the first avoiding hole moves to the first opening along with the moisturizing belt, the piece to be moisturized can be inserted into the box by the avoiding hole, and the part to be moisturized of the piece to be moisturized is close to the moisturizing belt.The moisturizing device can prevent core sand solidification and is low in cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sand core manufacturing, in particular to a moisturizing device and a moisturizing method. BACKGROUND

[0002] A core shooter is often used when casting various sand cores, which uses compressed air as power to uniformly shoot core sand into a core box and compact it into a shape. The device for shooting core sand is called a sand shooting plate, and a plurality of sand shooting nozzles are arranged on the sand shooting plate. The core sand is sprayed out of the sand shooting nozzle under the pressure generated by the compressed air. When the sand shooting plate is not working, the moisture in the core sand in the sand shooting nozzle is easily lost, causing the core sand to harden and clog the sand shooting nozzle.

[0003] Currently, there are mainly two ways to deal with the hardening of the core sand. One is to arrange a thorn at the position directly opposite the clogged sand shooting nozzle after the core sand hardens, and to harden the nozzle hole by hard poking, so as to make the nozzle unobstructed. The other is to use an ultrasonic generator and water to generate water mist, and to use a pipeline to deliver the water vapor to the lower part of the sand shooting nozzle to increase the humidity and reduce the temperature, so that it does not harden.

[0004] The first method cannot prevent solidification, and after the core sand solidifies, the solidified layer is forcibly destroyed, causing material waste. In addition, the positions of the sand shooting nozzles of each set of molds are different, and a set of thorn mechanism is needed for each set of molds, which has high mold cost and poor assembly and disassembly convenience. The second method needs a special external ultrasonic generating device and a special water vapor delivery pipeline, which has high manufacturing and use costs and high energy consumption.

[0005] In view of the above problems, it is necessary to develop a moisturizing device and a moisturizing method to solve the problem of cost increase caused by the need to increase special equipment to prevent the solidification of core sand. SUMMARY

[0006] The purpose of the present application is to provide a moisturizing device and a moisturizing method which can prevent the solidification of core sand and have low cost.

[0007] To achieve this purpose, the present application adopts the following technical solutions:

[0008] A moisturizing device comprises:

[0009] A box body, a first opening is formed on one side of the box body;

[0010] A moisturizing assembly, the moisturizing assembly comprises at least two rotating shafts and a moisturizing belt, the moisturizing belt is arranged around the box body and can be tensioned by the rotating shafts and move around the box body, a first avoiding hole is formed on the moisturizing belt, and a to-be-moisturized piece can extend into the box body through the avoiding hole when the moisturizing belt moves to the first opening.

[0011] Preferably, a second opening is further formed on the box, and a second avoiding hole is further formed on the moisturizing belt, when a part of the first avoiding hole is located at the first opening, the second avoiding hole is located at the second opening.

[0012] Preferably, a fan is further included, the fan is arranged at one side of the second opening of the box, and can blow the moisture on the moisturizing belt to the object to be moisturized.

[0013] Preferably, a driving mechanism is further included, the driving mechanism can drive the rotation of the rotating shaft.

[0014] Preferably, a water tank is further included, and at least one rotating shaft is arranged in the water tank.

[0015] Preferably, the moisturizing device further comprises:

[0016] a water level monitoring assembly arranged in the water tank and configured to detect the water level in the water tank;

[0017] an electromagnetic valve arranged at an end of the water supply pipe and electrically connected to the water level monitoring assembly, and configured to open or close the water supply pipe.

[0018] Preferably, a water squeezing assembly is further included, the water squeezing assembly is arranged at both sides of the rotating shaft in the water tank, and is configured to squeeze the moisture of the moisturizing belt at both sides of the rotating shaft in the water tank.

[0019] Preferably, the water squeezing assembly comprises two rollers arranged in the water tank in rotation, the moisturizing belt passes through a gap between the two rollers, and the gap between the two rollers is smaller than the thickness of the moisturizing belt.

[0020] A moisturizing method for moisturizing the object to be moisturized by using the moisturizing device, comprising the following steps:

[0021] S1: soaking the moisturizing belt;

[0022] S2: rotating the rotating shaft to move the first avoiding hole to be opposite to the first opening;

[0023] S3: placing the object to be moisturized into the box through the first avoiding hole and the first opening.

[0024] Preferably, the moisturizing device further comprises:

[0025] S4: turning on the fan to blow the moisture on the moisturizing belt to the object to be moisturized.

[0026] The moisturizing device has the following advantages:

[0027] The application provides a moisturizing device and a moisturizing method. The moisturizing device comprises a box body and a moisturizing assembly. The box body comprises a top plate and a bottom plate arranged oppositely, the top plate is provided with a first opening, and the bottom plate is provided with a second opening. The moisturizing assembly comprises a moisturizing belt and a plurality of rotating shafts, the moisturizing belt is tensioned by the rotating shafts and arranged around the box body, the moisturizing belt is provided with a first avoiding hole, when the first avoiding hole moves to the first opening along with the rotation of the moisturizing belt, the object to be moisturized can enter the box body through the first avoiding hole and the first opening, and at this time, the second opening of the box body is shielded by the moisturizing belt. Because the moisturizing belt is wet, the moisture on the moisturizing belt at the second opening evaporates at this time, the temperature in the box body is reduced, the humidity is increased, and the object to be moisturized is ensured to be in a wet state in the box body. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structure schematic view of the moisturizing device and the sand shooting plate provided by the application;

[0029] Figure 2 is a structure schematic view of the moisturizing device when moisturizing provided by the application;

[0030] Figure 3 is a structure schematic view of the moisturizing device and the sand shooting plate when being maintained and repaired provided by the application.

[0031] In the drawings:

[0032] 100, sand shooting plate; 101, sand shooting nozzle;

[0033] 1, box body; 2, moisturizing assembly; 3, driving mechanism; 4, water tank; 5, water squeezing assembly;

[0034] 11, first opening; 12, second opening; 21, rotating shaft; 22, moisturizing belt; 51, roller;

[0035] 221, avoiding hole. DETAILED DESCRIPTION

[0036] Embodiments of the application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the application, and cannot be understood as a limitation of the application.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0038] Unless otherwise clearly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" should be understood broadly, for example, it can be fixed connection, or it can be detachable connection; it can be mechanical connection, or it can be electrical connection; it can be direct connection, or it can be indirect connection through intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] Unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature can include that the first feature and the second feature are in direct contact, or the first feature and the second feature are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0040] The technical scheme of the present application will be further illustrated by specific embodiments in combination with the drawings.

[0041] The moisture-retaining part in the present embodiment is taken as an example to illustrate the sand blasting plate 100, and the moisture-retaining part of the sand blasting plate 100 is the sand blasting nozzle 101.

[0042] The present embodiment provides a moisturizing device. As shown in Figure 1As shown, the moisture retaining device comprises a box body 1 and a moisture retaining assembly 2. The box body 1 is provided with a first opening 11 on one side plate. The moisture retaining assembly 2 comprises at least two rotating shafts 21 and a moisture retaining belt 22. The moisture retaining belt 22 is arranged around the box body 1 and can be tensioned and moved around the box body 1 by the rotating shafts 21. The moisture retaining belt 22 is provided with a first avoiding hole. When the first avoiding hole moves to the first opening 11, the sand shooting plate 100 can extend into the box body 1 through the avoiding hole 221, and the sand shooting nozzle 101 of the sand shooting plate 100 is close to the moisture retaining belt 22.

[0043] Preferably, the moisture retaining belt 22 is made of a material easy to soak up water, such as cotton cloth. The moisture retaining belt 22 is arranged around the box body 1 and can shield the first opening 11. The rotation of the rotating shafts 21 drives the moisture retaining belt 22 to move around the box body 1. When the first avoiding hole on the moisture retaining belt 22 moves to the first opening 11, the sand shooting plate 100 can enter the box body 1 through the first avoiding hole and the first opening 11. At this time, the first opening 11 of the box body 1 is shielded by the sand shooting plate 100. In order to enable the sand shooting plate 100 to be close to the moisture retaining belt 22, a section of the moisture retaining belt 22 is arranged inside the box body 1 through the side wall of the box body 1. Thus, the moisture in the moisture retaining belt 22 can effectively reduce the temperature and increase the humidity in the box body 1. At the same time, most of the moisture will not overflow from the box body 1, which ensures that the sand shooting plate 100 is moistened for a long time and effectively prevents the core sand in the sand shooting nozzle 101 of the sand shooting plate 100 from hardening and clogging the sand shooting nozzle 101.

[0044] In order to facilitate disassembly and maintenance, the box body 1 is also provided with a second opening 12. The moisture retaining belt 22 is arranged outside the box body 1 and can shield the second opening 12 when the first avoiding hole is located at the first opening 11. At this time, the sand shooting plate 100 can still be moistened by the moisture entering from the second opening 12 through the moisture retaining belt 22. At this time, there is no intersection structure between the moisture retaining belt 22 and the box body 1, which is easy to disassemble and maintain. In order to match the shape of the sand shooting nozzle 101 of the sand shooting plate 100 and reduce the occupied space of the moisture retaining device, the box body 1 comprises a top plate and a bottom plate arranged oppositely. The remaining side plates are relatively short, so that the distance between the top plate and the bottom plate is relatively small. The first opening 11 is arranged on the top plate, and the second opening 12 is arranged on the bottom plate. The sand shooting nozzle 101 of the sand shooting plate 100 can enter the box body 1 through the first opening 11 and the first avoiding hole to be moistened. The small distance between the top plate and the bottom plate also makes the space in the box body 1 small, so that only a small amount of moisture is needed to maintain sufficient moisture.

[0045] As shown in the drawings, Figure 2As shown, preferably, the side plate of the box 1 is provided with a third opening which is in communication with the first opening 11, and the moisturizing belt 22 can cover the side plate. The third opening enables the sand shooting plate 100 to be translated into the box 1, and the side plate is also covered by the movement of the moisturizing belt 22, which does not damage the moisturizing property of the moisturizing device and is convenient for the operator to operate. Since the sand shooting plate 100 does not need to enter the box 1 from the top, the moisturizing device does not need to reserve too much space when installed, and the space occupied by the moisturizing device is greatly reduced.

[0046] The sand shooting plate 100 needs to be regularly maintained and repaired as the use time increases, and the second opening is used for the maintenance and repair of the sand shooting plate 100. Preferably, the moisturizing belt 22 is also provided with a second avoiding hole. With the movement of the moisturizing belt 22, when the second avoiding hole moves to the second opening 12, the maintenance personnel can maintain and repair the sand shooting plate 100 through the second avoiding hole and the second opening 12. Preferably, the size of the first avoiding hole in the movement direction of the moisturizing belt 22 is large, so that when the second avoiding hole moves to the second opening 12 with the rotation of the moisturizing belt 22, the first avoiding hole can still avoid the first opening 11, so that the sand shooting plate 100 will not touch the edge of the first avoiding hole to make the moisturizing belt 22 unable to rotate, thereby ensuring that the sand shooting plate 100 can still enter the box 1 through the first avoiding hole and the first opening 11, and the maintenance personnel can maintain and repair the sand shooting plate 100 through the second avoiding hole and the second opening 12.

[0047] As shown in the figure, Figure 3 Preferably, the edge of the first avoiding hole extends to the second avoiding hole and is connected with the second avoiding hole to form an avoiding hole 221. In order to facilitate manufacturing, the first avoiding hole and the second avoiding hole on the moisturizing belt 22 are connected to form an avoiding hole 221, and the size of the avoiding hole 221 in the rotation direction of the moisturizing belt 22 can avoid the first opening 11 and the second opening 12. When the sand shooting plate 100 needs to be moisturized, the sand shooting plate 100 is moved into the box 1 through the avoiding hole 221 and the first opening 11, and the moisturizing belt 22 can cover the second opening 12 at this time, thereby completing the moisturizing step. As shown in the figure, Figure 3 When the sand shooting plate 100 needs to be maintained and repaired, the sand shooting plate 100 does not need to be moved, and only the moisturizing belt 22 needs to be rotated to make the avoiding hole 221 avoid the first opening 11 and the second opening 12 at the same time, and then the maintenance personnel can maintain and repair the sand shooting plate 100 through the second opening 12.

[0048] In order to improve the automation degree of the moisturizing device, the moisturizing device further comprises a driving mechanism 3 which can drive one of the plurality of rotating shafts 21 to rotate.

[0049] Preferably, the driving mechanism 3 comprises a driving motor and a speed reduction assembly. The output shaft of the speed reduction assembly is fixedly connected with one of the plurality of rotating shafts 21, and the driving motor can drive the speed reduction assembly to rotate to drive one of the plurality of rotating shafts 21 to rotate. The driving motor is a rotary motor. Since the rotary motor has a high rotating speed, the rotating speed needs to be reduced to a suitable speed before the rotary motor can be used to drive the rotating shaft 21 to rotate. Therefore, the speed reduction assembly needs to be arranged. It can be understood that the speed reduction assembly is a planetary gear set. The planetary gear set has a simple structure, can stably and uniformly transmit torque, and can enable the moisturizing device to stably operate. The rotary motor can be forward rotated and reverse rotated. When the rotary motor is forward rotated, the driving moisturizing belt 22 drives the avoiding hole 221 to move to the first opening 11 and the third opening. After the sand shooting plate 100 enters the box body 1, the rotary motor continues to be forward rotated until the moisturizing belt 22 shields the second opening 12 and the third opening. When the sand shooting plate 100 needs to start working, the rotary motor is reverse rotated, the driving moisturizing belt 22 is driven to rotate, the moisturizing belt 22 is moved away from the third opening, and the sand shooting plate 100 can move away from the box body 1. When the sand shooting nozzle 101 of the sand shooting plate 100 needs to be overhauled, the rotary motor is reverse rotated, the driving moisturizing belt 22 is driven to rotate, the avoiding hole 221 is moved away from the second opening 12, and the sand shooting nozzle 101 can be overhauled by an operator.

[0050] Preferably, the moisturizing device further comprises a water tank 4, and at least one rotating shaft 21 is rotatably arranged in the water tank 4. The rotating shaft 21 in the water tank 4 enables the part of the moisturizing belt 22 that is tensioned by the rotating shaft 21 to be located in the water tank 4. In the process of rotation, the moisturizing belt 22 is soaked by water in the water tank 4, the wet state of the moisturizing belt 22 when shielding the second opening 12 is ensured, the humidity in the box body 1 can be improved, and the temperature in the box body 1 can be reduced, so that the core sand in the sand shooting nozzle 101 cannot be hardened.

[0051] Since the moisturizing belt 22 made of the infiltrating material absorbs a large amount of water when passing through the water tank 4, water is wasted and water droplets are dropped to the lower part of the moisturizing device, which needs to be cleaned frequently. To solve this problem, the moisturizing device further comprises a water squeezing assembly 5, which is arranged on both sides of the rotating shaft 21 in the water tank 4. The water squeezing assembly 5 is used to squeeze the water in the moisturizing belt 22 on both sides of the rotating shaft 21 in the water tank 4.

[0052] To save space, the water squeezing assembly 5 comprises two rollers 51 rotatably arranged in the water tank 4. The moisturizing belt 22 passes through the gap between the two rollers 51, and the gap between the two rollers 51 is smaller than the thickness of the moisturizing belt 22. When the moisturizing belt 22 passes through the gap between the two rollers 51, the moisturizing belt 22 is squeezed by the two rollers 51, so that part of the water on the moisturizing belt 22 is squeezed out. The amount of water squeezed out can be adjusted by changing the distance between the two rollers 51. The water on the moisturizing belt 22 should be enough to maintain the humidity and temperature in the box body 1, and too much water should not flow out.

[0053] In use, the moisturizing device, due to abrasion or other reasons, the thickness of the moisturizing belt 22 is reduced, or the gap between the two rollers 51 is greater than the thickness of the moisturizing belt 22 due to the replacement of other types of moisturizing belts 22, so that the moisturizing belt 22 cannot squeeze out enough water, resulting in too much water carried by the moisturizing belt 22. To solve this problem, the water squeezing assembly 5 further comprises an elastic member and a pressing member, one roller 51 is rotatably arranged on the pressing member, and the elastic member can drive the pressing member to move close to the other roller 51 so that the two rollers are pressed together, and when the moisturizing belt 22 passes through the two rollers, the water on the moisturizing belt is squeezed out. Preferably, the elastic member can adjust the pressing force applied to the roller 51, and the elastic member is a spring.

[0054] Preferably, the moisturizing device further comprises a fan arranged on one side of the bottom plate of the box body 1, which can blow the water on the moisturizing belt 22 to the sand shooting plate 100. By the wind power of the fan, the water on the moisturizing belt 22 is blown to the sand shooting plate 100, which can further improve the humidity in the box body 1 and reduce the temperature in the box body 1, which is beneficial to prevent the core sand in the sand shooting nozzle 101 from hardening.

[0055] According to Dalton's law of evaporation, the evaporation rate of water surface is proportional to the difference between the saturated water vapor pressure and the actual water vapor pressure in the air above the water surface, inversely proportional to the air pressure above the water surface, and proportional to the wind speed of the water surface. The fan increases the wind speed around the moisturizing belt 22, so that the water on the moisturizing belt 22 is quickly evaporated into water vapor and blown to the sand shooting plate 100, keeping the sand shooting plate 100 moist.

[0056] The moisturizing device further comprises a water level detection assembly and an electromagnetic valve, the water level detection assembly can detect the water level in the water tank 4, the electromagnetic valve is arranged at the end of the water replenishing pipe and is electrically connected with the water level detection assembly, and the electromagnetic valve can open or close the water replenishing pipe. Preferably, the water level detection assembly comprises two water level detection members arranged at high and low positions in the water tank 4 and electrically connected with the electromagnetic valve, when the water level in the water tank 4 is lower than the lower water level detection member, the electromagnetic valve is opened, and the water replenishing pipe starts to replenish water into the water tank 4, when the water level in the water tank 4 is higher than the higher water level detection member, the electromagnetic valve is closed, and the automatic water replenishing is completed. The water level detection member can be a sensor which can send an electric signal when it contacts water.

[0057] The embodiment also provides a moisturizing method for moisturizing the sand shooting plate 100 by using the above-mentioned moisturizing device, which comprises the following steps:

[0058] S1: Soak the moisturizing belt 22;

[0059] S2: Rotate the rotating shaft 21 to move the first avoiding hole to be opposite to the first opening 11;

[0060] S3: Put the sand shooting plate 100 into the box body 1 through the first avoiding hole and the first opening 11;

[0061] With the second opening 12 of the box 1 being shielded by the wetting belt 22, the sand shooting plate 100, the box 1 and the wetting belt 22 form a relatively closed space, the moisture in the wetting belt 22 can not easily overflow after entering the box 1, and the temperature in the box 1 can be quickly reduced, the humidity in the box 1 can be improved, which is beneficial to the humidity of the core sand in the sand shooting nozzle 101 on the sand shooting plate 100, and prevents the core sand in the sand shooting nozzle 101 from hardening.

[0062] Preferably, further comprising:

[0063] S4: Turn on the fan to blow the water on the wetting belt 22 to the sand shooting plate 100.

[0064] The moisture in the wetting belt 22 is accelerated to transfer to the sand shooting plate 100, the humidity near the sand shooting plate 100 is increased, the temperature is reduced, and the core sand in the sand shooting nozzle 101 is prevented from hardening.

[0065] Preferably, further comprising:

[0066] S5: Continue to rotate the rotating shaft 21 to move the second avoiding hole to the second opening 12, and ensure that the sand shooting plate 100 can still pass through the first avoiding hole and the first opening 11 to enter the box 1, so as to facilitate the maintenance personnel to maintain and overhaul the sand shooting plate 100.

[0067] S6: After the maintenance and overhaul are completed, rotate the rotating shaft 21 to move the wetting belt 22 to the position as shown in FIG. 6, and continue to wet the sand shooting plate 100. Figure 2

[0068] The sand shooting plate 100 needs to be regularly maintained and overhauled as the use time increases, at this time, the wetting belt 22 needs to avoid the second opening 12, and the maintenance personnel can maintain and overhaul the sand shooting plate 100 through the second avoiding hole and the second opening 12. After the maintenance is completed, rotate the rotating shaft 21 to make the wetting belt 22 shield the second opening 12, so that the moisture in the box 1 will not overflow the box 1, and the sand shooting plate 100 is wetted.

[0069] It can be understood that the wetting device can effectively prevent the hardening of the mixed core sand, so as to avoid the shutdown problem caused by the hardening of the core sand in the sand shooting nozzle 101. Moreover, the wetting device can also be applied to other environments that need to be humidified, such as solving the hardening problem of the core sand in the sand shooting barrel and the sand mixing barrel.

[0070] The above is only a preferred embodiment of the present application, and those skilled in the art can make changes in specific implementation and application range according to the idea of the present application. The content of the specification should not be understood as a limitation of the present application.​

Claims

1. A humidifying device, characterized in that, include: Box (1), with a first opening (11) on one side; Moisturizing component (2), the moisturizing component (2) includes at least two rotating shafts (21) and a moisturizing belt (22). The moisturizing belt (22) is arranged around the box body (1) and can be tensioned by the rotating shafts (21) and move around the box body (1). A first clearance hole is provided on the moisturizing belt (22). When the first clearance hole moves to the first opening (11) with the moisturizing belt (22), the item to be moisturized can be inserted into the box body (1) through the clearance hole (221). The box (1) is also provided with a second opening (12), and the moisturizing strip (22) is also provided with a second clearance hole. When a part of the first clearance hole is located at the first opening (11), the second clearance hole is located at the second opening (12). The box body (1) includes a top plate and a bottom plate arranged opposite to each other. The remaining side plates are shorter so that the top plate and the bottom plate are closer together. The top plate has the first opening (11) and the bottom plate has the second opening (12). The part to be moisturized is a sand-shooting plate (100), and the part to be moisturized on the sand-shooting plate (100) is a sand-shooting nozzle (101) to prevent sand from forming inside the sand-shooting nozzle (101).

2. The humidifying device according to claim 1, characterized in that, It also includes a fan, which is located on one side of the second opening (12) of the housing (1) and is able to blow the moisture on the moisturizing strip (22) toward the part to be moisturized.

3. The humidifying device according to claim 1, characterized in that, It also includes a drive mechanism (3) that can drive the rotating shaft (21) to rotate.

4. The humidifying device according to any one of claims 1-3, characterized in that, It also includes a water tank (4), and at least one of the rotating shafts (21) is rotatably disposed within the water tank (4).

5. The moisturizing device according to claim 4, characterized in that, Also includes: A water level monitoring component, which is capable of detecting the water level in the water tank (4); A solenoid valve is disposed at the end of the water supply pipe and electrically connected to the water level monitoring component. The solenoid valve is capable of opening or closing the water supply pipe.

6. The humidifying device according to claim 4, characterized in that, It also includes a water squeezing assembly (5), which is respectively disposed on both sides of the rotating shaft (21) in the water tank (4). The water squeezing assembly (5) is used to squeeze out the water from the moisturizing strip (22) on both sides of the rotating shaft (21) in the water tank (4).

7. The humidifying device according to claim 6, characterized in that, The water-squeezing assembly (5) includes two rollers (51) rotatably disposed in the water tank (4), and the moisturizing strip (22) passes through the gap between the two rollers (51), the gap between the two rollers (51) being smaller than the thickness of the moisturizing strip (22).

8. A moisturizing method, characterized in that, Moisturizing the part to be moisturized using the moisturizing device as described in any one of claims 1-7 includes the following steps: S1: Wet the moisturizing strip (22); S2: Rotate the shaft (21) to move the first clearance hole to be directly opposite the first opening (11); S3: After passing the item to be moisturized through the first clearance hole and the first opening (11), place it into the box (1).

9. The moisturizing method according to claim 8, characterized in that, Also includes: S4: Turn on the fan so that the water on the moisturizing strip (22) is blown toward the item to be moisturized.

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