A toy paint drying device

CN224657264UActive Publication Date: 2026-08-21浙江巧之木玩具股份有限公司
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Patent Information

Application Number
CN202521635513.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-04
Publication Date
2026-08-21
Estimated Expiration
2035-08-04

AI Technical Summary

Technical Problem

漆面烘干作为该工序的核心环节,直接影响玩具的成品质量——若烘干不当,易出现漆面开裂、流挂、附着力差等问题,同时可能导致木材因含水率骤变而变形、开裂,严重影响产品合格率

Benefits of technology

[0021]1、本申请采用“远红外加热管组+侧面加热网”的立体加热设计,顶部及背部的远红外加热管可穿透漆面深层加热,两侧加热网形成水平方向的辅助热源,配合旋转承载机构带动玩具匀速转动,大幅度缩小箱内温度梯度,这一设计从根源上解决了“局部高温导致漆面开裂”和“温度不足干燥不彻底”的问题,确保玩具各部位漆面同步固化,大幅提升成品一致性。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of toy paint surface drying device, including drying box, the bottom of drying box is designed as the shape of " ", drying box bottom two ends are respectively provided with back cavity and plug-in storehouse, and the top of back cavity is uniformly provided with air hole, and heat-insulating cabinet is set to drying box close to one end of back cavity.Compared with prior art, the utility model has the beneficial effects as follows: the application adopts the three-dimensional heating design of "far-infrared heating tube group+side heating net", the far-infrared heating tube of top and back can penetrate the deep layer of paint surface and heat, the heating net on both sides forms the auxiliary heat source in horizontal direction, and the rotating bearing mechanism drives the uniform rotation of toy, greatly reduces the temperature gradient in the box, which solves the problems of "local high temperature leading to paint surface cracking" and "insufficient temperature leading to incomplete drying" from the root, ensures the synchronous solidification of paint surface of each part of toy, and greatly improves the consistency of finished product.
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Description

Technical Field

[0001] The utility model relates to a toy paint drying device, belonging to the field of drying devices. Background Technique

[0002] Wooden toys occupy an important position in the children's toy market due to their natural environmental protection, gentle touch and other characteristics. Paint treatment (such as primer, topcoat, painting) is a key process to improve their appearance texture and durability. As the core link of this process, paint drying directly affects the finished product quality of toys. If the drying is improper, problems such as paint cracking, sagging, and poor adhesion are likely to occur. At the same time, the wood may deform and crack due to sudden changes in moisture content, seriously affecting the product qualification rate.

[0003] Most of the existing technologies adopt electric heating ovens to accelerate drying by heating tubes. However, this method has two major problems: one is uneven heating, and there is an obvious temperature gradient in the oven (the temperature difference between the corner and the center can reach 10 - 15 °C), resulting in cracking of the local paint surface of the toy due to rapid curing at high temperature, or incomplete drying due to insufficient temperature; the other is the lack of air flow circulation design. After the moisture on the paint surface evaporates, a high humidity area is formed locally, which is likely to cause the phenomenon of "stuffy drying", resulting in a decrease in the gloss of the paint surface and even the appearance of bubbles. Therefore, it is necessary to design a toy paint drying device. Content of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a toy paint drying device to solve the problems put forward in the above background technique.

[0005] In order to achieve the above purpose, the utility model is realized through the following technical scheme: A toy paint drying device includes:

[0006] A drying box, the bottom of which is designed in a "冂" shape. Both ends of the bottom of the drying box are respectively provided with an air return cavity and a plug-in bin, and ventilation openings are evenly arranged at the top of the air return cavity;

[0007] A heat preservation cabinet, which is arranged at one end of the drying box close to the air return cavity. A return air pipe with its bottom connected to the air return cavity is arranged inside the heat preservation cabinet, and an electric heating wire is wound around the return air pipe inside the heat preservation cabinet;

[0008] An air pump, which is installed in the center of the top of the drying box. Both the air inlet end and the air outlet end of the air pump are connected with three-way solenoid valves. The top of the return air pipe is connected to one of the air inlet ends of the three-way solenoid valve at the air inlet end of the air pump;

[0009] An air distribution pipe component, which is connected to one of the air outlet ends of the three-way solenoid valve at the air outlet end of the air pump;

[0010] A rotary bearing mechanism, which is arranged in the center of the inside of the drying box;

[0011] Heating grids are symmetrically arranged on both sides inside the drying oven.

[0012] Furthermore, a water box is inserted into the insertion compartment, and a handle is installed at the center of the water box at the end away from the drying box. An ultrasonic atomizer is installed on one side of the drying box near the water box, and a water inlet is provided at the top of the water box near the ultrasonic atomizer. The water suction pipe of the ultrasonic atomizer extends to the bottom of the water box through the water inlet.

[0013] Furthermore, a temperature and humidity sensor is installed at the center of the drying oven at the end away from the insertion compartment. A second far-infrared heating tube assembly is installed on both sides of the inner wall of the drying oven, and a first far-infrared heating tube assembly is installed at both ends of the top of the drying oven.

[0014] Furthermore, a sealing door is hinged to one end of the drying chamber near the insertion compartment, and a control panel is installed at the center of the sealing door away from the drying chamber. The output end of the temperature and humidity sensor is electrically connected to the input end of the control panel via a wire, and the output end of the control panel is electrically connected to the input ends of the first far-infrared heating tube group, the second far-infrared heating tube group, the heating grid, and the ultrasonic atomizer via a wire.

[0015] Furthermore, the air distribution pipe includes a main pipe, a distribution pipe, an air outlet, and branch pipes. The middle part of the main pipe is connected to the air outlet of the air pump. The two sides of the drying box are symmetrically arranged with distribution pipes, and the distribution pipes are designed in a "U" shape. Both sides of the main pipe are bent downwards and connected to the center of the top of the distribution pipe. The two vertical pipes of the distribution pipe are evenly arranged with branch pipes on the side of the drying box. The branch pipes penetrate the side wall of the drying box, and the end of the branch pipe is provided with an air outlet. The air outlet is located between the side wall of the drying box and the heating grid.

[0016] Furthermore, the rotating bearing mechanism includes a rotary motor, a turntable, a fixing component, a rotating column, and a bearing component. The rotary motor is installed at the center of the bottom of the drying chamber, and the turntable is rotatably connected to the center of the bottom of the drying chamber. The output end of the rotary motor is connected to the center of the turntable. The rotating column is fixed at the center of the top of the turntable, and the top of the rotating column is rotatably connected to the top of the drying chamber. Multiple position-adjustable fixing components are provided on the rotating column, and the bearing component is installed on the fixing components.

[0017] Furthermore, a through groove with a shape matching the rotating column is vertically formed at the center of the fixed component, and an adjustment knob is threaded to one side of the fixed component. A receiving groove is formed on the side of the fixed component near the adjustment knob, and a limiting plate with a shape matching the receiving groove is provided in the receiving groove. The output end of the adjustment knob is rotatably connected to the limiting plate. A rotating groove is formed at the center of the other side of the fixed component, and a limiting component is rotatably connected to the rotating groove. The rotating column has a rectangular cross-section, and limiting ridges that engage with the limiting plate are evenly provided on the side of the rotating column near the limiting plate.

[0018] Furthermore, the supporting component includes a fence, a plug-in frame, and a net. The net is designed as a disc, and a notch is provided in the radial direction of the net. A plug-in frame that matches the shape of the fixing component is fixed at the notch. The plug-in frame is open on the side near the edge of the net. An annular fence that matches the shape of the net is provided at the top edge of the net, and both ends of the fence are connected to the plug-in frame. A through groove is provided at the end of the plug-in frame near the center of the net.

[0019] Furthermore, the limiting component includes a single-piece locking plate, an anti-detachment disc, a clamping spring, and a connecting rod. The connecting rod passes through the side wall of the fixing assembly, and an anti-detachment disc with a shape matching the rotating groove is connected to the side of the connecting rod near the through groove. A single-piece locking plate is fixed to the side of the connecting rod away from the fixing assembly, and the shape of the single-piece locking plate matches the through groove. A clamping spring is connected to the side of the anti-detachment disc near the single-piece locking plate, and the other side of the clamping spring abuts against the inside of the rotating groove.

[0020] The beneficial effects of this utility model are:

[0021] 1. This application adopts a three-dimensional heating design of "far-infrared heating tube assembly + side heating mesh". The far-infrared heating tubes on the top and back can penetrate deep into the paint surface for heating, while the heating mesh on both sides forms a horizontal auxiliary heat source. Combined with the rotating support mechanism, it drives the toy to rotate at a uniform speed, which greatly reduces the temperature gradient inside the box. This design solves the problems of "local high temperature causing paint cracking" and "insufficient temperature for incomplete drying" from the root, ensuring that the paint surface of all parts of the toy is cured synchronously and greatly improving the consistency of the finished product.

[0022] 2. When the air pump is running, in the initial stage, the air inside the drying chamber is preferentially drawn in through the three-way solenoid valve. The air inside the chamber is collected through the vent of the bottom air return chamber and transported to the heat preservation cabinet through the air return pipe. After being preheated by the heating wire, it is sent back into the drying chamber through the air distribution pipe. After being heated a second time by the heating grid, it forms a laminar flow that covers the surface of the toy. The humid air is then collected through the bottom air return chamber, preheated through the air return pipe, and recirculated. Alternatively, the three-way solenoid valve at the air pump outlet discharges high-humidity air. This circulation mode can quickly remove the moisture evaporated from the paint surface, avoid local high humidity accumulation, and effectively solve the problems of "decreased gloss and bubble formation caused by suffocation" in the existing technology, making the paint surface smoother and more firmly adhered.

[0023] 3. The rotating motor drives the turntable and rotating column to rotate at a constant speed, causing the toy on the supporting component to rotate 360°. This movement causes the various surfaces of the toy to be alternately exposed to the far-infrared heating tube group, the side heating mesh and the circulating airflow. The rotational movement is linked with the airflow system of "air intake on both sides and air return at the bottom". When the toy rotates, it will disturb the surrounding air, making it easier for the hot airflow to penetrate the gaps of the toy. At the same time, it accelerates the air renewal of the surface boundary layer and reduces the resistance to moisture evaporation. The number of fixed components on the rotating column can be flexibly increased or decreased, and the height of each fixed component can be adjusted independently. Combined with the quick loading and unloading design of the supporting component, different supporting modes such as "single-layer large toy" and "multi-layer small toy" can be quickly switched. Attached Figure Description

[0024] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the sealing door closing structure of a toy paint drying device according to the present invention;

[0026] Figure 2 This is a schematic diagram of the opening structure of the sealing door of a toy paint drying device according to the present invention;

[0027] Figure 3 This is a cross-sectional view of the drying box structure of a toy paint drying device according to this utility model;

[0028] Figure 4 This is a schematic diagram of the rotating bearing mechanism of a toy paint drying device according to the present invention;

[0029] Figure 5 This is a schematic diagram of the fixing component structure of a toy paint drying device according to the present invention;

[0030] Figure 6 This is a cross-sectional structural diagram of the fixing component of a toy paint drying device according to the present invention;

[0031] Figure 7This is a schematic diagram of the air distribution pipe structure of a toy paint drying device according to the present invention;

[0032] In the picture:

[0033] 1. Drying oven; 101. Air return chamber; 102. Connecting compartment; 103. Air vent;

[0034] 2. Sealed door;

[0035] 3. Control Panel;

[0036] 4. Water box; 401. Water inlet; 402. Handle;

[0037] 5. Air pump;

[0038] 6. Return air pipe;

[0039] 7. Air distribution pipe fittings; 701. Main pipe; 702. Distribution pipe; 703. Air outlet; 704. Branch pipe;

[0040] 8. Warming cabinet;

[0041] 9. Rotating load-bearing mechanism; 901. Rotary motor; 902. Turntable; 903. Fixing component; 9031. Through groove; 9032. Adjusting knob; 9033. Limiting plate; 9034. Receiving groove; 9035. Rotating groove; 904. Rotating column; 9041. Limiting ridge; 905. Load-bearing component; 9051. Fence; 9052. Insertion frame; 9053. Carrying net; 9054. Through groove;

[0042] 10. Ultrasonic atomizer;

[0043] 11. Heating mesh;

[0044] 12. Temperature and humidity sensor;

[0045] 13. First far-infrared heating tube assembly;

[0046] 14. Second far-infrared heating tube assembly;

[0047] 15. Limiting component; 1501. Single-piece locking plate; 1502. Anti-detachment disc; 1503. Clamping spring; 1504. Connecting rod;

[0048] 16. Heating wire;

[0049] 17. Three-way solenoid valve. Detailed Implementation

[0050] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0051] Please see Figures 1 to 7 This utility model provides a technical solution: a toy paint drying device, including a drying box 1. The bottom of the drying box 1 is designed in a "U" shape. A return air chamber 101 and a connecting compartment 102 are respectively opened at both ends of the bottom of the drying box 1. Air vents 103 are evenly distributed at the top of the return air chamber 101. A heat preservation cabinet 8 is located at one end of the drying box 1 near the return air chamber 101. A return air pipe 6, whose bottom is connected to the return air chamber 101, is installed inside the heat preservation cabinet 8. An electric heating wire 16 is wound around the return air pipe 6 inside the heat preservation cabinet 8. An air pump 5 is installed at the center of the top of the drying box 1. Both the air inlet and outlet ends of the air pump 5 are connected to a three-way solenoid valve 17. The top of the return air pipe 6 is connected to one of the air inlet ends of the three-way solenoid valve 17 at the air inlet end of the air pump 5. An air distribution pipe 7 is connected to the three-way solenoid valve 17 at the air outlet end of the air pump 5. One of the air outlets is connected, and the rotating bearing mechanism 9 is located in the center of the drying chamber 1. The heating grid 11 is symmetrically arranged on both sides of the drying chamber 1. The bottom of the drying chamber 1 has a "U"-shaped design to provide independent space for the return air chamber 101 and the insertion compartment 102. The air vent 103 at the top of the return air chamber 101 can evenly collect the air in the chamber and deliver it to the heat preservation cabinet 8 through the return air pipe 6. The electric heating wire 16 on the return air pipe 6 preheats the circulating air. The three-way solenoid valve 17 at the air inlet of the air pump 5 can switch between "circulating air from the return air pipe 6" and "fresh air from outside". The three-way solenoid valve 17 at the air outlet precisely controls the airflow to the air distribution pipe 7. When the humidity in the chamber is high, the air inlet switches to fresh air and the air outlet delivers full volume of air to quickly remove moisture from the paint surface. When the humidity is suitable, it switches to internal circulating air to use residual heat for drying and reduce energy waste.

[0052] Please see Figure 1 and Figure 3 A water box 4 is inserted into the insertion compartment 102, and a handle 402 is installed at the center of the end of the water box 4 away from the drying chamber 1. An ultrasonic atomizer 10 is installed on one side of the drying chamber 1 near the end of the water box 4, and a water inlet 401 is provided on the top of the water box 4 near the ultrasonic atomizer 10. The water suction pipe of the ultrasonic atomizer 10 extends to the bottom of the water box 4 through the water inlet 401. The ultrasonic atomizer 10 draws water from the water box 4 through the water suction pipe and atomizes it, which can replenish water vapor in the drying chamber 1 and flexibly adjust the humidity inside the chamber. It is especially suitable for paint surfaces that are sensitive to drying speed, such as nitrocellulose lacquer and acrylic lacquer. For example, for thick paint surfaces, moderate humidification can slow down the surface curing speed and avoid cracking caused by the difference in drying rates between the inside and outside. For toys with fine painting, a stable humidity environment can reduce uneven shrinkage of the paint surface and protect the integrity of the pattern.

[0053] Please see Figure 3A temperature and humidity sensor 12 is installed at the center of the drying oven 1, away from the insertion compartment 102. Second far-infrared heating tube assemblies 14 are installed on the inner walls of the drying oven 1 on both sides of the temperature and humidity sensor 12, and first far-infrared heating tube assemblies 13 are installed at both ends of the top of the drying oven 1. The temperature and humidity sensor 12 can accurately capture the temperature and humidity data of the core area inside the oven, providing a basis for intelligent adjustment of the equipment. When humidity is detected to be excessive, it can activate the three-way solenoid valve 17 to introduce fresh air and dehumidify; when the temperature deviates from the set value, it feeds back to the control system to adjust the first far-infrared heating tube assemblies 13. The power of the heating tube assembly 13 and the second far-infrared heating tube assembly 14 ensures that the drying process is within the preset "optimal temperature and humidity range". The first far-infrared heating tube assembly 13 and the second far-infrared heating tube assembly 14 form a three-dimensional heating field of "top + back". Far-infrared radiation has strong penetrability and can directly act on the deep layers of the paint surface, so that the moisture evaporates from the inside to the outside simultaneously, avoiding the paint surface cracking caused by the traditional hot air heating "the surface dries first and the inside dries later". At the same time, the three-dimensional layout, combined with the rotation of the rotating support mechanism 9, allows all parts of the toy to receive radiation energy evenly, resulting in more uniform heating.

[0054] Please see Figure 1 and Figure 3 A sealing door 2 is hinged to one end of the drying chamber 1 near the insertion compartment 102, and a control panel 3 is installed at the center of the end of the sealing door 2 away from the drying chamber 1. The output end of the temperature and humidity sensor 12 is electrically connected to the input end of the control panel 3 through a wire, and the output end of the control panel 3 is electrically connected to the input ends of the first far-infrared heating tube group 13, the second far-infrared heating tube group 14, the heating grid 11 and the ultrasonic atomizer 10 through a wire.

[0055] Please see Figure 2 and Figure 7 The air distribution pipe 7 includes a main pipe 701, a distribution pipe 702, an air outlet 703, and branch pipes 704. The middle part of the main pipe 701 is connected to the air outlet of the air pump 5. The distribution pipes 702 are symmetrically arranged on both sides of the drying box 1, and the distribution pipes 702 are designed in a "U" shape. Both sides of the main pipe 701 are bent downwards and connected to the center of the top of the distribution pipes 702. The two vertical pipes of the distribution pipes 702 are evenly arranged with branch pipes 704 on the side of the drying box 1. The branch pipes 704 penetrate the side wall of the drying box 1, and the ends of the branch pipes 704 are... An air outlet 703 is provided, located between the side wall of the drying oven 1 and the heating grid 11. The air distribution pipe 7 achieves precise airflow distribution through a three-stage diversion structure of "main pipe 701 - distribution pipe 702 - branch pipe 704": the main pipe 701 receives the gas delivered by the air pump 5 in the middle and then diverts it symmetrically to both sides; the "U"-shaped distribution pipe 702 spans both sides of the drying oven 1, and the branch pipes 704 evenly distributed on its two vertical pipes can disperse the airflow to different heights of the oven, and finally send it evenly into the oven through the air outlet 703.

[0056] Please see Figure 4 The rotating support mechanism 9 includes a rotary motor 901, a turntable 902, a fixing assembly 903, a rotating column 904, and a support assembly 905. The rotary motor 901 is installed at the center of the bottom of the drying chamber 1, and the turntable 902 is rotatably connected to the center of the bottom of the drying chamber 1. The output end of the rotary motor 901 is connected to the center of the turntable 902. The rotating column 904 is fixed at the center of the top of the turntable 902, and the top of the rotating column 904 is rotatably connected to the top of the interior of the drying chamber 1. The rotating column 904 is equipped with multiple adjustable fixing components 903, and each fixing component 903 is mounted with a support component 905. The multiple fixing components 903 on the rotating column 904 can be independently adjusted in height. With the quick loading and unloading of the support component 905, it can flexibly handle toys of different sizes: for small building blocks, multiple layers of support components 905 can be densely installed on the rotating column 904 to achieve batch drying; for large dolls, the number of fixing components 903 can be reduced and the spacing between layers can be widened to avoid interference between the toy and the top of the drying chamber 1 or other components.

[0057] Please see Figure 4 , Figure 5 and Figure 6 A through groove 9031, matching the shape of the rotating column 904, is vertically formed at the center of the fixing component 903. An adjusting knob 9032 is threaded onto one side of the fixing component 903. A receiving groove 9034 is formed on the side of the fixing component 903 near the adjusting knob 9032, and a limiting plate 9033 matching its shape is installed within the receiving groove 9034. The output end of the adjusting knob 9032 is rotatably connected to the limiting plate 9033. A rotating groove 9035 is formed at the center of the other side of the fixing component 903, and a limiting member 15 is rotatably connected to the rotating groove 9035. The rotating column 904 has a rectangular cross-section and rotates... The column 904 has a set of limiting ribs 9041 that engage with the limiting plate 9033 on one side near the limiting plate 9033. The fixing component 903 is connected to the rotating column 904 through the through groove 9031. The shape of the through groove 9031 matches the rotating column 904, and the cross-section of the rotating column 904 is rectangular. This non-circular fit can effectively prevent the fixing component 903 from rotating relative to the rotating column during rotation, and prevent the load-bearing component 905 and the toy from shifting due to shaking. The interlocking design of the limiting plate 9033 and the limiting ribs 9041 can apply squeezing force by adjusting the knob 9032 to firmly lock the fixing component 903 at the set height of the rotating column 904.

[0058] Please see Figure 4The supporting component 905 includes a fence 9051, a connecting frame 9052, and a carrier net 9053. The carrier net 9053 has a disc-shaped design and a notch in its radial direction. A connecting frame 9052, which matches the shape of the supporting component 903, is fixed at the notch. The side of the connecting frame 9052 near the edge of the carrier net 9053 is open. A ring-shaped fence 9051, which matches the shape of the top edge of the carrier net 9053, is provided, and both ends of the fence 9051 are connected to the connecting frame 9052. The plug-in frame 9052 has a through groove 9054 at one end near the center of the carrier net 9053. The open design of the plug-in frame 9052 allows the carrier component 905 to quickly connect with the fixing component 903. Simply align the open side with the fixing component 903 and push it in to complete the initial positioning. At the same time, the through groove 9054 at the end of the plug-in frame 9052 near the center cooperates with the limiting member 15 and can be locked by simple rotation. The entire loading and unloading process does not require tools and can be operated by a single person, which greatly improves the efficiency when changing toys.

[0059] Please see Figure 6 The limiting component 15 includes a single-line locking plate 1501, an anti-detachment disc 1502, a clamping spring 1503, and a connecting rod 1504. The connecting rod 1504 passes through the side wall of the fixing component 903, and the side of the connecting rod 1504 near the through groove 9031 is connected to an anti-detachment disc 1502 whose shape matches the rotating groove 9035. The side of the connecting rod 1504 away from the fixing component 903 is fixed with a single-line locking plate 1501, and the shape of the single-line locking plate 1501 matches the through groove 9054. The side of the anti-detachment disc 1502 near the single-line locking plate 1501 is connected to a clamping spring 1503, and the other side of the clamping spring 1503 is pressed against the inside of the rotating groove 9035. The clamping spring 1503 is slightly compressed, pushing the anti-detachment disc 1502 away from the inner wall of the rotating groove 9035, and the single-line locking plate 1501 is retracted through the connecting rod 1504. When the plug-in frame 9052 of the supporting component 905 is connected to the fixing component 903, the inwardly recessed locking plate 1501 enters the through groove 9054; manually pull the locking plate 1501 outward, and the anti-detachment disc 1502 is driven by the connecting rod 1504 to compress the clamping spring 1503. After the locking plate 1501 is fully extended, it rotates 90° so that its long side is perpendicular to the short side of the through groove 9054 to form a "cross"; after releasing, the clamping spring 1503 pulls back the anti-detachment disc 1502, which drives the locking plate 1501 to press against the outer wall of the plug-in frame 9052 to complete the fixing.

[0060] Detailed implementation method: The toy to be dried is placed on the carrier net 9053 of the carrier component 905, and is connected to the fixing component 903 through the plug frame 9052. After the locking plate 1501 of the limiting member 15 is inserted through the through groove 9054, it is pulled outward and rotated 90° to complete the locking. The fixing component 903 can be adjusted in height along the rotating column 904 by adjusting the knob 9032 to adapt to toys of different sizes.

[0061] After the equipment is started, the rotary motor 901 drives the turntable 902 and the rotating column 904 to rotate, causing the toy to rotate at a uniform speed. The air pump 5 draws fresh air from the outside or the circulating air from the return air pipe 6 through the three-way solenoid valve 17 at the air inlet end, and sends it into the air distribution pipe 7 through the three-way solenoid valve 17 at the air outlet end. The main pipe 701, the distribution pipe 702, and the branch pipe 704 send it from the air outlet 703 to both sides of the drying box 1. After being heated twice by the heating net 11, a hot airflow is formed.

[0062] Simultaneously, the first far-infrared heating tube group 13, the second far-infrared heating tube group 14, and the heating wire 16 on the return air pipe 6 are heated synchronously to form a three-dimensional heating field. The hot air flows from both sides towards the center and finally flows back to the return air pipe 6 through the air vent 103 of the return air chamber 101, completing the circulation.

[0063] Temperature and humidity sensor 12 monitors the environment inside the chamber in real time. The power of the heating component and the air path can be switched by the control panel 3 and the three-way solenoid valve 17. When the humidity is too high, fresh air is introduced to dehumidify. When the humidity is too low, the ultrasonic atomizer 10 is activated to draw water from the water box 4 to atomize and humidify, ensuring that the paint surface is dried under the optimal temperature and humidity.

[0064] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A toy paint drying device, characterized in that, Including: A drying box (1) with a bottom designed in an inverted "冂" shape. At both ends of the bottom of the drying box (1), an air return cavity (101) and a plug-in bin (102) are respectively opened. And ventilation openings (103) are evenly opened at the top of the air return cavity (101). A heat preservation cabinet (8) is arranged at one end of the drying box (1) close to the air return cavity (101). And an air return pipe (6) with its bottom connected to the air return cavity (101) is arranged inside the heat preservation cabinet (8). An electric heating wire (16) is wound around the air return pipe (6) inside the heat preservation cabinet (8). An air pump (5) is installed at the center of the top of the drying box (1). And three-way solenoid valves (17) are connected to both the intake end and the outlet end of the air pump (5). The top of the air return pipe (6) is connected to one of the intake ends of the three-way solenoid valve (17) at the intake end of the air pump (5). An air distribution pipe component (7) is connected to one of the outlet ends of the three-way solenoid valve (17) at the outlet end of the air pump (5). A rotary bearing mechanism (9) is arranged at the center inside the drying box (1). Heating grids (11) are symmetrically arranged on both sides inside the drying box (1).

2. The toy paint drying device according to claim 1, characterized in that: A water box (4) is inserted into the plug-in bin (102). And a handle (402) is installed at the center of the end of the water box (4) far from the drying box (1). An ultrasonic atomizer (10) is installed at one end of the inside of the drying box (1) close to the water box (4). And a water filling port (401) is arranged at the position of the water box (4) close to the ultrasonic atomizer (10). The water suction pipe of the ultrasonic atomizer (10) extends to the bottom end inside the water box (4) through the water filling port (401).

3. The toy paint drying device according to claim 1, characterized in that: A temperature and humidity sensor (12) is arranged at the center of the end of the inside of the drying box (1) far from the plug-in bin (102). Second far-infrared heating tube groups (14) are installed on the inner walls of the drying box (1) on both sides of the temperature and humidity sensor (12). And first far-infrared heating tube groups (13) are installed at both ends of the top of the drying box (1).

4. The toy paint drying device according to claim 3, characterized in that: One end of the drying box (1) close to the plug-in bin (102) is hinged with a sealing door (2). And a control panel (3) is installed at the center of the end of the sealing door (2) far from the drying box (1). The output end of the temperature and humidity sensor (12) is electrically connected to the input end of the control panel (3) through a wire. And the output end of the control panel (3) is electrically connected to the input ends of the first far-infrared heating tube groups (13), the second far-infrared heating tube groups (14), the heating grids (11) and the ultrasonic atomizer (10) through wires.

5. A toy paint drying device according to claim 1, characterized in that: The air distribution pipe component (7) includes a main pipe (701), a distribution pipe (702), an air outlet (703) and branch pipes (704). The middle part of the main pipe (701) is connected to the air outlet end of the air pump (5). Distribution pipes (702) are symmetrically arranged on both sides of the drying box (1), and the distribution pipes (702) are designed in an "L" shape. Both sides of the main pipe (701) are bent downward and connected to the center of the top of the distribution pipes (702). A plurality of branch pipes (704) are uniformly arranged on one side of the two vertical pipes of the distribution pipes (702) close to the drying box (1). The branch pipes (704) penetrate through the side wall of the drying box (1), and air outlets (703) are arranged at the ends of the branch pipes (704). The air outlets (703) are located between the side wall of the drying box (1) and the heating grid (11).

6. The toy paint drying device according to claim 1, characterized in that: The rotary bearing mechanism (9) includes a rotary motor (901), a turntable (902), a fixing component (903), a rotary column (904) and a bearing component (905). The rotary motor (901) is installed at the central position of the bottom of the drying box (1), and the turntable (902) is rotatably connected to the central position of the inner bottom end of the drying box (1). The output end of the rotary motor (901) is connected to the center of the turntable (902). A rotary column (904) is fixed at the central position of the top of the turntable (902), and the top of the rotary column (904) is rotatably connected to the inner top end of the drying box (1). A plurality of fixing components (903) with adjustable positions are arranged on the rotary column (904), and a bearing component (905) is installed on the fixing components (903).

7. A toy paint drying device according to claim 6, characterized in that: A through groove (9031) whose shape matches the rotary column (904) is vertically opened at the central position inside the fixing component (903). One side of the fixing component (903) is threadedly connected with an adjusting knob (9032). A receiving groove (9034) is opened on one side of the fixing component (903) close to the adjusting knob (9032), and a limiting plate (9033) whose shape matches the receiving groove (9034) is arranged in the receiving groove (9034). The output end of the adjusting knob (9032) is rotatably connected to the limiting plate (9033). A rotary groove (9035) is arranged at the central position of the other side of the fixing component (903), and a limiting part (15) is rotatably connected at the rotary groove (9035). The cross section of the rotary column (904) is rectangular, and a plurality of limiting edges (9041) that engage with the limiting plate (9033) are uniformly arranged on one side of the rotary column (904) close to the limiting plate (9033).

8. A toy paint drying device according to claim 7, characterized in that: The supporting component (905) includes a fence (9051), a plug-in frame (9052), and a carrier net (9053). The carrier net (9053) is designed as a disc, and a notch is provided in the radial direction of the carrier net (9053). A plug-in frame (9052) that matches the shape of the fixing component (903) is fixed at the notch. The side of the plug-in frame (9052) near the edge of the carrier net (9053) is designed as an opening. An annular fence (9051) that matches the shape of the top edge of the carrier net (9053) is provided, and both ends of the fence (9051) are connected to the plug-in frame (9052). A through groove (9054) is provided at the end of the plug-in frame (9052) near the center of the carrier net (9053).

9. A toy paint drying device according to claim 8, characterized in that: The limiting component (15) includes a single-line locking plate (1501), an anti-detachment disc (1502), a clamping spring (1503), and a connecting rod (1504). The connecting rod (1504) passes through the side wall of the fixing component (903), and the side of the connecting rod (1504) near the through groove (9031) is connected to an anti-detachment disc (1502) whose shape matches the rotating groove (9035). The side of the connecting rod (1504) away from the fixing component (903) is fixed with a single-line locking plate (1501), and the shape of the single-line locking plate (1501) matches the through groove (9054). The side of the anti-detachment disc (1502) near the single-line locking plate (1501) is connected to a clamping spring (1503), and the other side of the clamping spring (1503) is pressed against the inside of the rotating groove (9035).