Hot air drying device for cleaning aviation pipeline raw materials and cleaning machine thereof

Abstract

The utility model discloses a hot air drying device for cleaning aviation pipeline raw materials and a cleaning machine of the hot air drying device in the technical field of aviation pipeline manufacturing, the hot air drying device comprises a groove body, a circulating air duct is arranged in the groove body, hot air enters from one side of the circulating air duct and is discharged from the other side of the circulating air duct, and a turning cover is arranged above the groove body; the air inlet piece is connected with one side of the circulating air duct; the air exhaust piece is connected with the other side of the circulating air duct; the pipe fitting is placed in the groove body, the flip cover is covered, heat for drying the pipe fitting is prevented from running out from the upper portion, hot air is injected into one side of the circulating air duct through the air inlet piece, after the hot air evenly dries the pipe fitting, dried airflow is collected and recycled through the other side of the circulating air duct through the air exhaust piece, more heating assemblies are not needed, and the energy consumption is reduced. The manufacturing cost is low, the occupied space of equipment is small, the heat utilization rate is increased, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aviation pipeline manufacturing, in particular to a hot air drying device and a cleaning machine thereof for cleaning raw materials of aviation pipelines. Background Art

[0002] During the manufacturing process of aviation pipelines, the cleanliness of the pipelines is required to be high. In order to ensure the quality of each pipeline, the cleaning of the pipeline raw materials is particularly important. However, due to the complex materials and sizes of aviation pipeline raw materials, and the difficulty of cleaning the inner wall of the pipe, it is currently cleaned manually or semi-automatically.

[0003] After searching, the existing patent number CN209476836U discloses an ultrasonic cleaning machine, and its specification records: the conveyor line will drive the pipes in the cleaning basket to move into the drying furnace, the air supply motor and the heating tube are powered on and started, and the multiple heating tubes on both sides of the pipe generate a large amount of heat. The air supply motor drives the fan blades to rotate and blow air downward to accelerate the flow of hot air so that the pipes can be heated evenly. Through multiple heating components, the pipes can be fully heated to ensure the drying effect. Finally, the conveyor line drives the cleaning basket out of the drying furnace to complete the cleaning of the pipes.

[0004] The cleaning machine in the above patent document has defects. It adopts a hot air drying method with multiple heating components. Not only is the cost high, the entire equipment is too large, and a large amount of heat will be wasted during the drying process, and the hot air cannot be recycled. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, the purpose of the utility model is to provide a hot air drying device and a cleaning machine for cleaning raw materials of aviation pipelines, which do not require a large number of heating components, have low construction costs, occupy a small space, improve heat utilization rate, and reduce energy consumption.

[0007] In order to solve the above technical problems, the utility model provides a hot air drying device for cleaning raw materials of aviation pipelines, adopting the following technical scheme: the hot air drying device includes a trough body, a circulating air duct is arranged inside the trough body, the hot air enters from one side of the circulating air duct and is discharged from the other side of the circulating air duct, and a flap is arranged above the trough body; it also includes an air inlet piece connected to one side of the circulating air duct and an exhaust piece connected to the other side of the circulating air duct.

[0008] Optionally, a placement opening is opened at the top of the trough body, the flip cover is connected to one side of the placement opening, a shelf block is fixed at the bottom of the inner wall of the trough body, and a drainage port is provided at the bottom of the trough body.

[0009] Optionally, the circulating air duct includes a left air duct and a right air duct opened inside opposite side walls of the trough body, and first ventilation holes are opened on opposite side walls of the left air duct and the right air duct.

[0010] Optionally, a pipe rack is installed inside the left air duct, and a plurality of heating pipes are evenly distributed on the pipe rack.

[0011] Optionally, the air inlet component includes a blower, the air inlet end of the blower is connected to a first air inlet pipe, the air outlet end of the blower is connected to a first air outlet pipe, the first air outlet pipe is connected to the left air duct, and the exhaust component includes a circulating fan, the air inlet end of the circulating fan is connected to a second air inlet pipe, the air outlet end of the circulating fan is connected to a second air outlet pipe, the second air inlet pipe is connected to the right air duct, and the second air outlet pipe is connected to the first air inlet pipe.

[0012] Optionally, the outer wall of the trough body is provided with a plurality of second ventilation holes connected to the left air duct and the right air duct, the first air outlet pipe is connected to a plurality of air inlet branch pipes, each of the air inlet branch pipes is connected to the second ventilation hole on the left air duct side through an air inlet cover, and the second air outlet pipe is connected to a plurality of air outlet branch pipes, each of the air outlet branch pipes is connected to the second ventilation hole on the right air duct side through an air outlet cover.

[0013] Optionally, a dehumidification box is installed on the second air inlet pipe.

[0014] Optionally, a first hinge seat and a second hinge seat are installed on the side wall of the trough body, a hinge is fixed on one side of the flip cover, the first end of the hinge is connected to the first hinge seat, a hydraulic cylinder is provided on the outside of the trough body, one end of the hydraulic cylinder is connected to the second end of the hinge, and the other end of the hydraulic cylinder is connected to the second hinge seat.

[0015] Optionally, an arc-shaped groove is provided on the lower surface of the flip cover.

[0016] A cleaning machine includes the hot air drying device as described above, and also includes: a loading and unloading platform, an ultrasonic cleaning device, two bubbling rinsing devices and a mobile manipulator, wherein the mobile manipulator is located above the loading and unloading platform, the ultrasonic cleaning device and the two bubbling rinsing devices, and the loading and unloading platform, the ultrasonic cleaning device, the two bubbling rinsing devices and the hot air drying device are arranged in sequence.

[0017] In summary, the present invention has at least one of the following beneficial effects:

[0018] 1. The hot air drying device of the utility model places the pipe fittings in the tank body and covers it with a flip cover to prevent the heat from drying the pipe fittings from escaping from the top. Hot air is injected into one side of the circulating air duct through the air inlet piece. After the hot air dries the pipe fittings evenly, the dried airflow is collected and recycled through the other side of the circulating air duct through the exhaust piece. It does not require more heating components, has low construction cost, occupies less equipment space, and improves heat utilization rate and reduces energy consumption.

[0019] 2. The hot air drying device of the utility model opens a plurality of second ventilation holes in the left and right air ducts of the trough body, and the air enters through the air inlet branch pipe and is extracted through the air outlet branch pipe, so that the air discharged into the trough body from the first air outlet pipe can be blown toward the cleaning basket to a greater extent and then be extracted. It is suitable for trough bodies with larger sizes and can ensure sufficient contact between the hot air and the pipes when drying more pipes at one time; a dehumidification box is added in the process of circulating the air duct to adsorb and remove water vapor in the recycled hot air, which can improve the drying efficiency and drying quality.

[0020] 3. The hot air drying device of the utility model controls the hydraulic cylinder to open and close the flap, thereby reducing labor intensity. The lower surface of the flap is provided with an arc groove for easy collection to prevent the condensed liquid from dripping onto the pipe again.

[0021] 4. The cleaning machine of the utility model adopts a loading and unloading platform, which is used as a loading and unloading position for pipe fittings. The pipe fittings in the cleaning basket are moved to the bottom of the mobile manipulator through the loading and unloading platform. After being cleaned, rinsed and dried in sequence, they return to the loading and unloading platform for unloading. This improves the cleaning quality, reduces the labor intensity of manual cleaning, has a high degree of device integration, and occupies a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a schematic diagram of the internal structure of the hot air drying device of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the opening position of the first ventilation hole of the utility model;

[0025] Figure 3 This is a schematic diagram of the installation position structure of the heating pipe of the utility model;

[0026] Figure 4 For this utility model Figure 1 Schematic diagram of the external structure;

[0027] Figure 5 For this utility model Figure 4 Schematic diagram of the structure viewed from above;

[0028] Figure 6 This is a schematic diagram of the structure of the cleaning machine of the utility model.

[0029] Description of reference numerals: 100, hot air drying device; 101, tank body; 102, circulating air duct; 102a, left air duct; 102b, right air duct; 102c, first ventilation hole; 102d, pipe rack; 102e, heating pipe; 102f, second ventilation hole; 103, air inlet member; 103a, blower; 103b, first air inlet pipe; 103c, first air outlet pipe; 103d, air inlet branch pipe; 103e, air inlet cover; 104, exhaust member; 104a, circulating fan; 10 4b, second air inlet pipe; 104c, second air outlet pipe; 104d, air outlet branch pipe; 104e, air outlet hood; 104f, dehumidification box; 105, flip cover; 105a, first hinge seat; 105b, second hinge seat; 105c, hinge; 105d, hydraulic cylinder; 105e, arc groove; 106, placement port; 107, shelf block; 108, drainage port; 200, loading and unloading platform; 300, ultrasonic cleaning device; 400, bubbling rinsing device; 500, mobile manipulator. DETAILED DESCRIPTION

[0030] The following will combine the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the utility model belong to the scope of protection of the utility model.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] Embodiment 1

[0034] Reference Figure 1 The utility model discloses a hot air drying device for cleaning raw materials of aviation pipelines. The hot air drying device 100 includes a tank body 101. A circulating air duct 102 is arranged inside the tank body 101. Hot air enters from one side of the circulating air duct 102 and is discharged from the other side of the circulating air duct 102. A flap 105 is arranged above the tank body 101; it also includes an air inlet member 103 connected to one side of the circulating air duct 102 and an air exhaust member 104 connected to the other side of the circulating air duct 102.

[0035] By adopting the above structure, the pipe fittings are placed in the trough body 101 and covered with the flip cover 105 to prevent the heat from drying the pipe fittings from escaping from the top. Hot air is injected into one side of the circulating air duct 102 through the air inlet piece 103. After the hot air dries the pipe fittings evenly, the dried airflow is collected and recycled through the other side of the circulating air duct 102 through the exhaust piece 104. Not only does it not require more heating components, the cost is low, the equipment occupies a small space, but it also improves the heat utilization rate and reduces energy consumption.

[0036] Reference Figure 1 and Figure 2 In detail, in the present embodiment, a placement opening 106 is provided at the top of the tank body 101, and a flap 105 is connected to one side of the placement opening 106. The placement opening 106 is used to place a cleaning basket containing pipe fittings into the tank body 101, and the flap 105 can close the placement opening 106 when the pipe fittings are dried to prevent the drying hot air from escaping. A shelf block 107 is fixed to the bottom of the inner wall of the tank body 101. The setting of the shelf block 107 facilitates the stable placement of the cleaning basket containing pipe fittings in the tank body 101, and the hot air flow entering the tank body 101 can fully and evenly dry the pipe fittings in the cleaning basket. A drain port 108 is provided at the bottom of the tank body 101. The drain port 108 is used to collect water flowing down from the pipe fittings in the cleaning basket into the tank body 101 and water condensed from water vapor in the tank body 101 after drying. It should be noted that a valve is provided on the drain port 108, and the valve can be in a closed state during the drying process.

[0037] The circulation air duct 102 is composed of a left air duct 102a and a right air duct 102b. The left air duct 102a and the right air duct 102b can be holes in the inner wall of the tank body 101, or can be air ducts with a certain space set on the inner wall or outside of the tank body 101. Figure 2 In detail, in the present embodiment, the circulating air duct 102 includes a left air duct 102a and a right air duct 102b which are opened inside the opposite side walls of the tank body 101, so that the air flow can flow in the direction of the air duct, and the opposite side walls of the left air duct 102a and the right air duct 102b are provided with first ventilation holes 102c. The setting of the first ventilation holes 102c accelerates the circulation speed of the wind to achieve a better drying effect. The airflow for drying the pipe fittings enters the tank body 101 from the left air duct 102a to dry the pipe fittings in the cleaning basket, and then is discharged through the right air duct 102b and recycled, which can ensure that the hot air flow passes through the pipe fittings in the cleaning basket and takes away the moisture on the surface of the pipe fittings.

[0038] The hot air for drying the pipes in the cleaning basket can be external hot air directly entering the tank body 101 through the left air duct 102a, or a heating component can be installed in the left air duct 102a, and then the external air is blown into the left air duct 102a. Figure 3 In detail, in this embodiment, a pipe rack 102d is installed inside the left air duct 102a, and a plurality of heating tubes 102e are evenly distributed on the pipe rack 102d. The airflow entering the tank body 101 from the left air duct 102a is heated by the plurality of heating tubes 102e and then blown toward the pipe surface of the cleaning basket.

[0039] The air inlet member 103 includes a blower 103a, the air inlet end of the blower 103a is connected to a first air inlet pipe 103b, the first air inlet pipe 103b can be connected to a filter device (not shown in the figure) for filtering the air dried by the pipe fittings to ensure that the pipe fittings are not polluted by the hot air sucked in, the air outlet end of the blower 103a is connected to a first air outlet pipe 103c, the first air outlet pipe 103c is connected to the left air duct 102a, that is, when the blower 103a is started, the external air will enter the left air duct 102a through the first air inlet pipe 103b and the first air outlet pipe 103c; the exhaust member includes a circulating fan 104a, the air inlet end of the circulating fan 104a A second air inlet pipe 104b is connected, and the air outlet end of the circulating fan 104a is connected to the second air outlet pipe 104c, and then discharged through the second air outlet pipe 104c; the second air inlet pipe 104b is connected to the right air duct 102b, that is, when the circulating fan 104a is started, the second air inlet pipe 104b will extract the airflow for drying the pipe fittings in the tank body 101 through the right air duct 102b; the second air outlet pipe 104c is connected to the first air inlet pipe 103b; the extracted dry hot air will pass into the first air inlet pipe 103b through the second air outlet pipe 104c, and re-enter the tank body 101 through the first air outlet pipe 103c, thereby improving the heat utilization rate and reducing energy consumption.

[0040] Working principle: open the flip cover 105, place the cleaned pipes in the cleaning basket into the tank body 101, then close the flip cover 105, preheat the heating tube 102e, and then start the blower 103a, the circulating fan 104a and the blower 103a to blow external air into the left air duct 102a, and the hot air heated by the heating tube 102e will enter the tank body 101, and the pipes in the cleaning basket will be evenly heated and dried. The hot air that takes away the water vapor on the surface of the pipes will be drawn out through the right air duct 102b under the action of the circulating fan 104a, and drawn to the first air inlet pipe 103b, and then enter the tank body 101 again through the first air outlet pipe 103c by the blower 103a, while ensuring that the pipes are fully heated and dried, the heat utilization rate is improved and the energy consumption is reduced.

[0041] Embodiment 2

[0042] Reference Figure 4 Based on the same concept as the first embodiment, the hot air drying device for cleaning raw materials of aviation pipelines also includes

[0043] The outer wall of the tank body 101 is provided with a plurality of second ventilation holes 102f connected to the left air duct 102a and the right air duct 102b. The first air outlet pipe 103c is connected to a plurality of air inlet branch pipes 103d, each of which is connected to the second ventilation hole 102f on the left air duct 102a side through an air inlet cover 103e. The second air outlet pipe 104c is connected to a plurality of air outlet branch pipes 104d, each of which is connected to the second ventilation hole 102f on the right air duct 102b side through an air outlet cover 104e. When a larger trough body 101 is used and more pipes are dried at one time, in order to ensure that the hot air is in full contact with the pipes, a plurality of second ventilation holes 102f are opened in the left air duct 102a and the right air duct 102b of the trough body 101, and the air enters through the air inlet branch pipe 103d and is drawn out through the air outlet branch pipe 104d, so that the air discharged from the first air outlet pipe 103c into the trough body 101 can be blown toward the cleaning basket to a greater extent and then be drawn out.

[0044] A dehumidification box 104f is installed on the second air inlet pipe 104b to absorb and remove water vapor in the recycled hot air, thereby improving drying efficiency and drying quality. The dehumidification box 104f adopts existing products, and a desiccant and a plurality of baffles can be arranged inside the dehumidification box 104f; the hot air passes through the baffles and the desiccant in turn; and a plurality of baffles are arranged on the inner wall of the dehumidification box 104f in an interlaced and overlapping manner.

[0045] Embodiment 3

[0046] Reference Figure 5 Based on the same concept as the first embodiment, the hot air drying device for cleaning raw materials of aviation pipelines also includes

[0047] A first hinge seat 105a and a second hinge seat 105b are installed on the side wall of the trough body 101, and a hinge 105c is fixed on one side of the flip cover 105, and a first end of the hinge 105c is connected to the first hinge seat 105a. A hydraulic cylinder 105d is provided on the outside of the trough body 101, and one end of the hydraulic cylinder 105d is connected to the second end of the hinge 105c, and the other end of the hydraulic cylinder 105d is connected to the second hinge seat 105b. The flip cover 105 is opened and closed by controlling the hydraulic cylinder 105d to reduce labor intensity.

[0048] An arc-shaped groove 105e is provided on the lower surface of the flap 105. Since the flap 105 is in a closed state during the pipe manufacturing process, the steam generated by the pipe during the drying process will adhere to the lower surface of the flap 105. By changing the lower surface of the flap 105 into the arc-shaped groove 105e, the steam will condense into liquid and drip to both sides along the arc-shaped groove 105e, which is easy to collect and prevent the condensed liquid from dripping on the pipe again.

[0049] Embodiment 4

[0050] Reference Figure 6 , based on the same concept as the above-mentioned embodiment 1, it also includes a cleaning machine, including the hot air drying device 100 as mentioned above, and also including: a loading and unloading platform 200, an ultrasonic cleaning device 300, two bubbling rinsing devices 400 and a mobile manipulator 500, the mobile manipulator 500 is located above the loading and unloading platform 200, the ultrasonic cleaning device 300 and the two bubbling rinsing devices 400, and the loading and unloading platform 200, the ultrasonic cleaning device 300, the two bubbling rinsing devices 400 and the hot air drying device 100 are arranged in sequence.

[0051] The loading and unloading platform 200 is used as both the loading and unloading position of the pipe fittings. The pipe fittings are placed in the cleaning basket, which is moved from the loading and unloading platform 200 to the bottom of the mobile manipulator 500. The mobile manipulator 500 grabs the cleaning basket downwards and lifts it up, and moves forward along the traveling frame. After cleaning, rinsing and drying in the ultrasonic cleaning device 300, the first bubbling rinsing device 400, the second bubbling rinsing device 400 and the hot air drying device 100 in sequence, the mobile manipulator 500 grabs the cleaning basket in the hot air drying device 100 and moves it to the top of the loading and unloading platform 200 to release it. The dried cleaning basket is unloaded along the loading and unloading platform 200, and the cleaning of the first batch of pipe fittings is completed. The cleaning quality is improved, the labor intensity of manual cleaning is reduced, the device is highly integrated, and the space occupied is small.

[0052] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A hot air drying device for cleaning raw materials of aviation pipelines, characterized in that: The hot air drying device (100) comprises a trough body (101), a circulating air duct (102) is arranged inside the trough body (101), the hot air enters from one side of the circulating air duct (102) and is discharged from the other side of the circulating air duct (102), and a flap (105) is arranged above the trough body (101); and further comprises an air inlet member (103) connected to one side of the circulating air duct (102) and an air exhaust member (104) connected to the other side of the circulating air duct (102).

2. A hot air drying device for cleaning raw materials of aviation pipelines according to claim 1, characterized in that: The top of the tank body (101) is provided with a placement opening (106), the flip cover (105) is connected to one side of the placement opening (106), a shelf block (107) is fixed to the bottom of the inner wall of the tank body (101), and a liquid discharge opening (108) is provided at the bottom of the tank body (101).

3. The hot air drying device for cleaning raw materials of aviation pipelines according to claim 1, characterized in that: The circulating air duct (102) comprises a left air duct (102a) and a right air duct (102b) which are opened inside opposite side walls of the tank body (101); opposite side walls of the left air duct (102a) and the right air duct (102b) are provided with first ventilation holes (102c).

4. A hot air drying device for cleaning raw materials of aviation pipelines according to claim 3, characterized in that: A pipe rack (102d) is installed inside the left air duct (102a), and a plurality of heating pipes (102e) are evenly distributed on the pipe rack (102d).

5. A hot air drying device for cleaning raw materials of aviation pipelines according to claim 4, characterized in that: The air inlet component (103) comprises a blower (103a), the air inlet end of the blower (103a) is connected to a first air inlet pipe (103b), the air outlet end of the blower (103a) is connected to a first air outlet pipe (103c), and the first air outlet pipe (103c) is communicated with the left air duct (102a); the air exhaust component (104) comprises a circulation fan (104a), the air inlet end of the circulation fan (104a) is connected to a second air inlet pipe (104b), the air outlet end of the circulation fan (104a) is connected to a second air outlet pipe (104c), the second air inlet pipe (104b) is communicated with the right air duct (102b), and the second air outlet pipe (104c) is connected to the first air inlet pipe (103b).

6. A hot air drying device for cleaning raw materials of aviation pipelines according to claim 5, characterized in that: The outer wall of the trough body (101) is provided with a plurality of second ventilation holes (102f) in communication with the left air duct (102a) and the right air duct (102b); the first air outlet pipe (103c) is connected to a plurality of air inlet branch pipes (103d), each of the air inlet branch pipes (103d) being connected to the second ventilation hole (102f) on the left air duct (102a) side via an air inlet cover (103e); the second air outlet pipe (104c) is connected to a plurality of air outlet branch pipes (104d), each of the air outlet branch pipes (104d) being connected to the second ventilation hole (102f) on the right air duct (102b) side via an air outlet cover (104e).

7. The hot air drying device for cleaning raw materials of aviation pipelines according to claim 5, characterized in that: A dehumidification box (104f) is installed on the second air inlet pipe (104b).

8. The hot air drying device for cleaning raw materials of aviation pipelines according to claim 1, characterized in that: A first hinge seat (105a) and a second hinge seat (105b) are installed on the side wall of the trough body (101); a hinge (105c) is fixed on one side of the flip cover (105); a first end of the hinge (105c) is connected to the first hinge seat (105a); a hydraulic cylinder (105d) is provided outside the trough body (101); one end of the hydraulic cylinder (105d) is connected to the second end of the hinge (105c); and the other end of the hydraulic cylinder (105d) is connected to the second hinge seat (105b).

9. A hot air drying device for cleaning raw materials of aviation pipelines according to claim 8, characterized in that: The lower surface of the flip cover (105) is provided with an arc-shaped groove (105e).

10. A cleaning machine, characterized in that: The hot air drying device (100) comprises: a loading and unloading platform (200), an ultrasonic cleaning device (300), two bubbling rinsing devices (400) and a mobile manipulator (500), wherein the mobile manipulator (500) is located above the loading and unloading platform (200), the ultrasonic cleaning device (300) and the two bubbling rinsing devices (400), and the loading and unloading platform (200), the ultrasonic cleaning device (300), the two bubbling rinsing devices (400) and the hot air drying device (100) are arranged in sequence.

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