Layered drying oven equipment

Abstract

The utility model belongs to the technical field of drying ovens, and particularly discloses layered drying oven equipment which comprises a drying oven body, a heating mechanism and a front door control mechanism. A plurality of drying areas are arranged in the drying oven main body and are sequentially distributed from top to bottom; the heating mechanism comprises an air circulation assembly and a heating assembly, heating cavities communicating with the drying area are formed in the two sides of the drying oven body, the heating assembly is installed in the heating cavities, and the air circulation assembly is used for conveying heat in the heating cavities into the drying area; the front door control mechanism comprises a door lifting assembly and a plurality of sliding door plates, the sliding door plates are sequentially arranged from top to bottom and slidably connected to the drying oven body, the door lifting assembly is arranged on the drying oven body, and the door lifting assembly can lift any number of sliding door plates to open any drying area. By means of the structural design, the layered drying oven equipment has the effects of being compact in size design, efficient in drying efficiency and convenient to repair and maintain.

Description

Technical Field

[0001] This application belongs to the field of oven technology, and more specifically, relates to a layered oven device. Background Technology

[0002] In automated capacitor production lines, epoxy-cast products are typically placed in an oven for drying and curing. The curing temperature and time vary depending on the product.

[0003] Tunnel ovens are a common type of oven widely used in heat treatment processes such as material curing. These ovens are designed with varying lengths to customize curing times, meeting the processing requirements of different materials. However, they also present several problems: they are bulky, occupying significant production space and limiting the rational layout of production areas; their production efficiency is low, making them unsuitable for high-efficiency, large-scale production; and maintenance is difficult, with long repair cycles and high costs in case of malfunctions, and any problem with the equipment can affect the normal operation of the entire production line. Utility Model Content

[0004] In view of the shortcomings of the prior art, this application provides a layered drying oven, which aims to solve the problems of existing tunnel ovens being large in size, inefficient, difficult to repair when malfunctioning, and easily affecting the normal operation of the entire production line.

[0005] This application provides a layered drying oven, specifically comprising an oven body, a heating mechanism, and a front door control mechanism. The oven body contains multiple drying zones arranged in an array from top to bottom. The heating mechanism includes an air circulation component and a heating component. Heating chambers communicating with the drying zones are located on both sides of the oven body. The heating components are detachably installed in the heating chambers. The air circulation component is mounted on the oven body to transfer heat from the heating chambers to the drying zones. The front door control mechanism includes a lifting door component and multiple sliding door panels arranged from top to bottom and slidably connected to the oven body. The lifting door component is mounted on the oven body, and it opens the corresponding drying zone by lifting any one of the sliding door panels upwards.

[0006] Compared with the prior art, the technical solution conceived in this application makes full use of vertical space by arranging multiple drying zones in an array structure from top to bottom inside the oven body, thus reducing the overall size of the oven. At the same time, the heating mechanism adopts a combination of air circulation components and heating components to ensure that heat can be quickly and evenly distributed to each drying zone. The parallel operation mode of the multi-layer drying zones significantly improves drying efficiency. When a drying zone is under maintenance, it will not affect the normal operation of the overall equipment. It can achieve the beneficial effects of compact size design, high drying efficiency, and easy maintenance.

[0007] As a further preferred embodiment, all of the drying zones are interconnected.

[0008] As a further preferred embodiment, the heating assembly includes a mounting plate, a heating plate, a handle, and a fixing pin. The heating plate is fixedly connected to the mounting plate, and the handle is fixedly connected to one end of the mounting plate. The oven body has an opening communicating with the heating cavity. After the mounting plate extends from the opening into the heating cavity, the handle and the oven body are fixedly connected by the fixing pin.

[0009] As a further preferred embodiment, the inner walls on both sides of the oven body are provided with a plurality of first through holes, the drying area is connected to the heating chamber through the first through holes, and each drying area is provided with a sliding plate on both sides, the sliding plate being slidably connected to the inner wall of the oven body, and the sliding plate being provided with a plurality of second through holes corresponding to the positions of the first through holes.

[0010] As a further preferred embodiment, the door lifting assembly includes a lifting drive and two door lifters, the two door lifters being respectively disposed on both sides of the oven body, the lifting drive being disposed on the oven body and used to drive the two door lifters to perform lifting and lowering movements, and limiting members being fixedly connected to both sides of the sliding door panel, the door lifters changing their own configuration to support or avoid the limiting members.

[0011] As a further preferred embodiment, the lifting drive includes a motor, a rotating shaft, positioning wheels, and belts. The output shaft of the motor is connected to the rotating shaft to drive the rotating shaft to rotate around its axis. Two belts are provided, located on both sides of the oven body respectively. Both ends of each belt are rotatably set through positioning wheels. The positioning wheels are used to support and guide the movement of the belts. The rotating shaft is connected to the positioning wheels to drive the belts to rotate.

[0012] As a further preferred embodiment, the door lifting device includes a base, a door lifting cylinder, a connecting rod, a side plate, and a lever. The base is fixedly connected to the belt, the door lifting cylinder is fixedly connected to the base, the side plate is fixedly connected to the side of the base near the sliding door panel, the lever is rotatably connected to the side plate, one end of the connecting rod is hinged to the lever, and the other end is hinged to the piston rod of the door lifting cylinder. The door lifting cylinder drives the lever to lift or lower via the connecting rod.

[0013] As a further preferred embodiment, a vertically arranged slide rail is fixedly connected to the main body of the oven, and a slider is fixedly connected to the sliding door panel, the slider being slidably adapted to the slide rail.

[0014] As a further preferred embodiment, each of the drying zones is provided with a support frame on both sides, the support frame being detachably connected to the inner wall of the oven body, and the tray for placing the workpiece is supported by two support frames in the same drying zone.

[0015] As a further preferred embodiment, the air circulation assembly includes a fan, an air inlet chamber, and an air outlet chamber. The air inlet chamber and the air outlet chamber are respectively connected to the heating chambers on both sides of the oven body. The air outlet of the fan is connected to the air inlet chamber, and the air inlet of the fan is connected to the air outlet chamber.

[0016] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages:

[0017] 1. The mid-level drying oven equipment of this application adopts an innovative layout of multiple drying zones. Each drying zone is equipped with an independent heating and ventilation system to ensure uniform heat distribution, thereby achieving a fast and uniform drying effect. Its structure is compact and does not occupy space. At the same time, the interconnected design of multiple drying zones allows heat to circulate throughout the cavity, further improving thermal energy utilization efficiency and reducing energy consumption. Moreover, when a drying zone is under maintenance, it will not affect the normal operation of the overall equipment.

[0018] 2. By adjusting the position of the sliding plate, the operator can precisely control the heat distribution in each drying area. In the stage where rapid heating is required, the first and second through holes can be fully aligned to allow heat to fully enter the drying area. In the stage where slow heating or maintaining a constant temperature is required, the amount of heat input can be adjusted by partially overlapping the through holes, thereby achieving precise temperature control and adapting to different drying needs, making the layer drying oven equipment more versatile.

[0019] 3. This application, by incorporating an air circulation component, enables the recycling of heat. This circulation process not only ensures a uniform and stable temperature within the drying area but also effectively avoids heat waste and improves the thermal efficiency of the entire drying system.

[0020] 4. In this application, since the sliding door panel can be flexibly adjusted in position, the operator can reasonably arrange the use of the drying area according to the size and shape of the workpiece, and selectively open one or more drying areas to meet the usage needs of workpieces of different sizes. Attached Figure Description

[0021] Figure 1 This is a first-view overall structural diagram of the layered drying oven equipment provided in the embodiments of this application;

[0022] Figure 2 This is a front view structural diagram of the layered drying oven equipment provided in the embodiments of this application;

[0023] Figure 3 yes Figure 2 Schematic diagram of the structure in cross section along line AA;

[0024] Figure 4 This is a second-view overall structural diagram of the layered drying oven equipment provided in the embodiments of this application;

[0025] Figure 5 This is a schematic diagram of the overall structure of the heating assembly provided in the embodiments of this application;

[0026] Figure 6 This is a schematic diagram of the overall structure of the sliding door panel provided in an embodiment of this application;

[0027] Figure 7 This is a schematic diagram of the overall structure of the door lifter provided in the embodiments of this application;

[0028] Figure 8 This is a schematic diagram of the overall structure of the pallet provided in an embodiment of this application;

[0029] Figure 9 This is a schematic diagram showing the relative arrangement of the heating chamber and drying area provided in the embodiments of this application.

[0030] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein:

[0031] 1. Oven body; 11. Sliding plate; 12. Slide rail; 13. Support frame; 14. Heating chamber; 15. First through hole; 16. Second through hole; 17. Drying area; 2. Heating mechanism; 21. Air circulation assembly; 211. Fan; 212. Air inlet chamber; 213. Air outlet chamber; 22. Heating assembly; 221. Mounting plate; 222. Heating plate; 223. Handle; 224. Fixing pin; 225. Fixing shaft; 3. Front door control mechanism; 31. Door lifting assembly; 311. Lifting drive component; 3111. Motor; 3112. Rotating shaft; 3113. Positioning wheel; 3114. Belt; 312. Door lifter; 3121. Base; 3122. Door lifting cylinder; 3123. Connecting rod; 3124. Side plate; 3125. Toggle block; 32. Sliding door panel; 321. Limiting component; 322. Slider; 4. Rear door maintenance mechanism; 5. Tray. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0033] Reference Figures 1-3 The layered drying oven disclosed in this application includes an oven body 1, a heating mechanism 2, and a front door control mechanism 3. The oven body 1 has multiple drying zones 17 inside, and the multiple drying zones 17 are connected from top to bottom to form a complete cavity. The multiple drying zones 17 are arranged in an array structure from top to bottom. This structure ingeniously realizes the function of simultaneous drying of multiple layers, thereby significantly improving the drying efficiency and meeting the demand for high-efficiency drying equipment in modern industrial production.

[0034] In traditional drying ovens, drying efficiency is often limited by the design of a single drying zone 17, resulting in long drying times and high energy consumption. However, the mid-layer drying oven of this application overcomes this limitation through an innovative layout of multiple drying zones 17. Each drying zone 17 is equipped with an independent heating and ventilation system, ensuring uniform heat distribution and achieving a rapid and even drying effect. Its compact structure saves space, and the interconnected design of multiple drying zones 17 allows heat to circulate throughout the cavity, further improving thermal efficiency and reducing energy consumption. Furthermore, when a drying zone 17 is under maintenance, the individual oven can be disabled, allowing for reasonable switching based on maintenance or usage without affecting production line operations, and ensuring the normal operation of the overall equipment.

[0035] Regarding the heating mechanism 2, the equipment employs a high-efficiency air circulation component 21 and a detachable heating component 22. The air circulation component 21, through the design of a fan 211, an air inlet chamber 212, and an air outlet chamber 213, achieves rapid heat circulation and uniform distribution; the heating component 22, through its detachable installation method, facilitates maintenance and replacement, reducing the equipment's maintenance costs.

[0036] Furthermore, the front door control mechanism 3 in this application adopts a lifting door assembly 31 and a sliding door panel 32 design, which allows operators to flexibly open and close any drying area 17, greatly improving operational convenience and flexibility. This design not only facilitates the loading and unloading of workpieces, but also allows for flexible adjustment of the use of the drying area 17 according to different drying needs, further enhancing the applicability and practicality of the equipment.

[0037] Reference Figures 4-5 In this embodiment, the heating mechanism 2 includes an air circulation component 21 and a heating component 22. Heating chambers 14 communicating with the drying area 17 are provided on both sides of the oven body 1. The heating chambers 14 are located in the interlayer between the inner and outer walls of both sides of the oven body 1, eliminating the need for additional cavities and saving space and cost. The heating component 22 is detachably installed in the heating chamber 14. The air circulation component 21 is provided on the oven body 1 to transport the heat in the heating chamber 14 to the drying area 17. This design ensures uniform heat distribution and facilitates the installation and maintenance of the heating component 22.

[0038] Specifically, the heating assembly 22 includes a mounting plate 221, a heating plate 222, a handle 223, a fixing pin 224, and a fixing shaft 225. The heating plate 222, as the core component, is electrically connected to an external power source. The heating plate 222 is fixedly connected to the mounting plate 221 to ensure a stable supply of heat during operation. The handle 223 is fixedly connected to one end of the mounting plate 221, providing an easy grip for the operator, facilitating installation and disassembly. The fixing shaft 225 is coaxially fixedly connected to the other end of the mounting plate 221. The oven body 1 has an opening communicating with the heating chamber 14. The opening ensures that the mounting plate 221 can smoothly extend into the heating chamber 14. After the mounting plate 221 extends into the heating chamber 14, the fixing shaft 225 is inserted into the mounting groove on the inner wall of the heating chamber 14, and then the handle 223 and the oven body 1 are fixedly connected by the fixing pin 224, thereby completing the installation of the heating component 22. By rotating the mounting plate 221 to install at different angles, temperature control can be further achieved. This design improves the efficiency of installing and removing the heating component 22 and enhances the stability of the mounting plate 221, allowing it to be placed stably in the heating chamber 14.

[0039] More specifically, the air circulation component 21 includes a fan 211, an air inlet chamber 212, and an air outlet chamber 213. The fan 211, air inlet chamber 212, and air outlet chamber 213 are all fixedly connected to the oven body by bolts. The air inlet chamber 212 and air outlet chamber 213 are respectively connected to the heating chambers 14 on both sides of the oven body 1, ensuring that the heat can be evenly distributed and circulated throughout the system. The fan 211 is the core power component. The air outlet of the fan 211 is connected to the air inlet chamber 212, and the air inlet of the fan 211 is connected to the air outlet chamber 213. Through the operation of the fan 211, air is drawn into the fan 211 from the air outlet chamber 213, pressurized by the fan 211, and then sent into the air inlet chamber 212, and then into the heating chamber 14. The heat is recycled through air circulation, thereby improving the drying efficiency.

[0040] Inside the heating chamber 14, air is heated to the required temperature by the heating component 22 and then enters each drying zone 17 to provide heat to the workpiece. After releasing heat, the air in the drying zone 17 cools down and flows into the exhaust chamber 213. At this time, the fan 211 draws in this cooler air again and sends it back into the intake chamber 212 for heating, thus achieving heat recycling. This circulation process not only ensures a uniform and stable temperature within the drying zone 17 but also effectively avoids heat waste and improves the thermal efficiency of the entire drying system. Through this air circulation design, heat can continuously circulate within the drying system, reducing energy waste caused by heat loss. At the same time, the continuous operation of the fan 211 ensures the airflow speed and pressure, allowing heat to be quickly and evenly transferred to every corner of the drying zone 17, further improving drying efficiency. In addition, the air circulation component 21 can optimize the air circulation speed and heat distribution by adjusting the speed or airflow of the fan 211 according to different drying needs and operating conditions, thereby achieving more precise drying control.

[0041] In addition, several first through holes 15 are provided on both sides of the inner wall of the oven body 1. The drying area 17 is connected to the heating chamber 14 through the first through holes 15. These through holes provide a channel for heat transfer between the heating chamber 14 and the drying area 17. Each drying area 17 is provided with a sliding plate 11 on both sides. The sliding plate 11 is slidably connected to the inner wall of the oven body 1 and can be flexibly adjusted in position. Several second through holes 16 are provided on the sliding plate 11, corresponding to the positions of the first through holes 15. By sliding the sliding plate 11, the first through holes 15 and the second through holes 16 can partially overlap, completely overlap or completely offset, so as to change the effective aperture of the through holes. This design can flexibly adjust the heat distribution to adapt to different drying needs.

[0042] In actual drying processes, different workpieces, different drying stages, and different environmental conditions may all result in varying heat requirements. By adjusting the position of the sliding plate 11, the operator can precisely control the heat distribution within each drying zone 17. For example, in stages requiring rapid heating, the first through-hole 15 and the second through-hole 16 can be fully aligned to allow heat to fully enter the drying zone 17; while in stages requiring slow heating or maintaining a constant temperature, the amount of heat input can be adjusted by partially overlapping the through-holes, thereby achieving precise temperature control.

[0043] Furthermore, refer to Figure 1 and Figure 6 The front door control mechanism 3 includes a door lifting assembly 31 and multiple sliding door panels 32. The multiple sliding door panels 32 are arranged sequentially from top to bottom and are all slidably connected to the oven body 1. The door lifting assembly 31 is located on the oven body 1. The door lifting assembly 31 opens the corresponding drying area 17 or multiple adjacent drying areas 17 by lifting any sliding door panel 32 upwards. Depending on actual needs, a placement area can be provided on the oven body 1 for the sliding door panels 32 to be raised. This design makes the opening of the drying area 17 more flexible and easier to operate.

[0044] In traditional drying ovens, the opening of drying zones 17 is usually limited, either requiring all zones to be opened simultaneously or involving cumbersome and complex operations. In this application, the operator can selectively open one or more drying zones 17 according to the specific drying task, without needing to perform large-scale operations on the entire equipment. Because the sliding door 32 can be flexibly adjusted in position, the operator can rationally arrange the use of drying zones 17 according to the size and shape of the workpiece. For example, when drying small workpieces, only one or a few drying zones 17 can be opened, while when processing large workpieces, multiple zones can be opened to meet the needs.

[0045] To achieve the lifting and lowering of the sliding door panel 32, the lifting assembly 31 includes a lifting drive 311 and two lifting devices 312. The two lifting devices 312 are respectively disposed on both sides of the oven body 1. This symmetrical layout ensures balance and stability when lifting the sliding door panel 32. The lifting drive 311, disposed on the oven body 1, provides power to the lifting devices 312, driving the two lifting devices 312 to perform precise lifting and lowering movements. Limiting devices 321 are fixedly connected to both sides of the sliding door panel 32, which can effectively cooperate with the lifting devices 312. The lifting devices 312 achieve the limiting by changing their own configuration. The position member 321 supports or avoids the sliding door panel 32. This configuration change allows the door lifter 312 to stably support the limit member 321 when lifting the sliding door panel 32, and to cleverly avoid the limit member 321 when the drying area 17 needs to be closed, thereby achieving a smooth descent and closure of the sliding door panel 32. Vertical slide rails 12 are fixedly connected to both sides of the front door on the oven body 1. The two slide rails 12 are arranged symmetrically on the left and right. Slider blocks 322 are fixedly connected to both sides of the sliding door panel 32. The sliders 322 slide and slide rails 12, so that both sides of the sliding door panel 32 can slide simultaneously and stably.

[0046] Furthermore, the lifting drive component 311 includes a motor 3111, a rotating shaft 3112, a positioning wheel 3113, and a belt 3114. The motor 3111 is horizontally fixed to the top of the oven body 1. The motor 3111 serves as a power source, and its output shaft is connected to the rotating shaft 3112 to drive the rotating shaft 3112 to rotate around its axis. Specifically, a transmission belt is fitted around both the output shaft of the motor 3111 and the rotating shaft 3112, enabling the output shaft of the motor 3111 to rotate synchronously with the rotating shaft 3112. The belt 311... 4. Two belts are provided, located on both sides of the oven body 1. Both ends of each belt 3114 are rotated by positioning wheels 3113. The positioning wheels 3113 not only support the belt 3114, but also accurately guide the direction of movement of the belt 3114, ensuring that the belt 3114 remains stable and does not deviate during operation. The rotating shaft 3112 is connected to the positioning wheels 3113 to drive the belt 3114 to rotate, thereby achieving the smooth lifting and lowering of the door lifter 312 to drive the sliding door panel 32 to achieve stable lifting and lowering.

[0047] Reference Figure 7The door lifter 312 includes a base 3121, a door lift cylinder 3122, a connecting rod 3123, a side plate 3124, and a lever 3125. The base 3121 is fixedly connected to the belt 3114, the door lift cylinder 3122 is fixedly connected to the base 3121, the side plate 3124 is fixedly connected to the side of the base 3121 near the sliding door panel 32, and the lever 3125 is rotatably connected to the side plate 3124. One end of the connecting rod 3123 is hinged to the lever 3125, and the other end is hinged to the piston rod of the door lift cylinder 3122. The door lift cylinder 3122 drives the lever 3125 to lift or lower through the connecting rod 3123. This structure enables the flexible opening and closing of the sliding door panel 32. When the lifting cylinder 3122 is activated, the extension and retraction of its piston rod is transmitted to the lever 3125 through the connecting rod 3123, causing the lever 3125 to lift or lower. The lifting action of the lever 3125 is used to support the limiting members 321 on both sides of the sliding door panel 32, so that the sliding door panel 32 can be raised smoothly and the drying area 17 can be opened. The lowering action of the lever 3125 is used to avoid the sliding door panel 32, so that the lifting device 312 can be moved to the desired position.

[0048] Reference Figure 8 In this application, each drying zone 17 is equipped with a support frame 13 on both sides, which is detachably connected to the inner wall of the oven body 1 by bolts. The tray 5 for placing the workpiece is supported by two support frames 13 in the same drying zone 17. By placing the tray 5 on the two support frames 13, it can be ensured that the workpiece remains stable during the drying process, avoiding damage to the workpiece or uneven drying due to shaking or tilting of the tray 5. This design facilitates the placement and removal of workpieces and improves operational convenience.

[0049] Reference Figure 4 This application also includes a rear door access mechanism 4, which facilitates maintenance of the interior of the oven body 1 and provides additional convenience for the installation and maintenance of the heating assembly 22. The rear door access mechanism 4 is located at the rear of the oven body 1. By opening the rear door access mechanism 4, operators can easily access the opening communicating with the heating chamber 14. This design allows operators to directly insert the mounting plate 221 into the opening from the rear door when installing the heating assembly 22, without having to operate from the front of the oven body 1, thus avoiding installation difficulties caused by space limitations. In actual operation, the design of the rear door access mechanism 4 also considers safety. By setting appropriate locking mechanisms and safety warning signs, it is ensured that the rear door access mechanism 4 will not be accidentally opened during equipment operation, thereby protecting the safety of operators.

[0050] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0051] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0053] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0054] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A layered drying oven, characterized in that, It includes the oven body (1), heating mechanism (2), and front door control mechanism (3); The oven body (1) has multiple drying zones (17) inside, and the multiple drying zones (17) are arranged in an array structure from top to bottom. The heating mechanism (2) includes an air circulation component (21) and a heating component (22). Both sides of the oven body (1) are provided with heating chambers (14) that communicate with the drying area (17). The heating component (22) is detachably installed in the heating chamber (14). The air circulation component (21) is provided on the oven body (1) to transport the heat in the heating chamber (14) to the drying area (17). The front door control mechanism (3) includes a lifting door assembly (31) and multiple sliding door panels (32). The multiple sliding door panels (32) are arranged sequentially from top to bottom and are all slidably connected to the oven body (1). The lifting door assembly (31) is located on the oven body (1). The lifting door assembly (31) opens the corresponding drying area (17) by lifting any sliding door panel (32) upward.

2. The layered drying oven equipment as described in claim 1, characterized in that, All of the drying zones (17) are interconnected.

3. The layered drying oven equipment as described in claim 1, characterized in that, The heating assembly (22) includes a mounting plate (221), a heating plate (222), a handle (223), and a fixing pin (224). The heating plate (222) is fixedly connected to the mounting plate (221), and the handle (223) is fixedly connected to one end of the mounting plate (221). The oven body (1) has an opening that communicates with the heating chamber (14). After the mounting plate (221) extends from the opening into the heating chamber (14), the handle (223) and the oven body (1) are fixedly connected by the fixing pin (224).

4. The layered drying oven equipment as described in claim 1, characterized in that, The inner walls of both sides of the oven body (1) are provided with a number of first through holes (15). The drying area (17) is connected to the heating chamber (14) through the first through holes (15). Each drying area (17) is provided with a sliding plate (11) on both sides. The sliding plate (11) is slidably connected to the inner wall of the oven body (1). The sliding plate (11) is provided with a number of second through holes (16) corresponding to the positions of the first through holes (15).

5. The layered drying oven equipment as described in claim 1, characterized in that, The lifting door assembly (31) includes a lifting drive (311) and two lifting devices (312). The two lifting devices (312) are respectively disposed on both sides of the oven body (1). The lifting drive (311) is disposed on the oven body (1) and is used to drive the two lifting devices (312) to perform lifting and lowering movements. Limiting devices (321) are fixedly connected to both sides of the sliding door panel (32). The lifting devices (312) can support or avoid the limiting devices (321) by changing their own configuration.

6. The layered drying oven equipment as described in claim 5, characterized in that, The lifting drive component (311) includes a motor (3111), a rotating shaft (3112), a positioning wheel (3113), and a belt (3114). The output shaft of the motor (3111) is connected to the rotating shaft (3112) to drive the rotating shaft (3112) to rotate around its axis. Two belts (3114) are provided, located on both sides of the oven body (1). Both ends of each belt (3114) are rotatably set through the positioning wheel (3113). The positioning wheel (3113) is used to support and guide the movement of the belt (3114). The rotating shaft (3112) drives the belt (3114) to rotate by connecting with the positioning wheel (3113).

7. A layered drying oven as described in claim 6, characterized in that, The door lifter (312) includes a base (3121), a door lift cylinder (3122), a connecting rod (3123), a side plate (3124), and a lever (3125). The base (3121) is fixedly connected to the belt (3114). The door lift cylinder (3122) is fixedly connected to the base (3121). The side plate (3124) is fixedly connected to the side of the base (3121) near the sliding door panel (32). The lever (3125) is rotatably connected to the side plate (3124). One end of the connecting rod (3123) is hinged to the lever (3125), and the other end is hinged to the piston rod of the door lift cylinder (3122). The door lift cylinder (3122) drives the lever (3125) to lift or lower through the connecting rod (3123).

8. The layered drying oven equipment as described in claim 1, characterized in that, The oven body (1) is fixedly connected to a vertically arranged slide rail (12), and the sliding door panel (32) is fixedly connected to a slider (322), which is slidably adapted to the slide rail (12).

9. A layered drying oven as described in claim 1, characterized in that, Each of the drying zones (17) is provided with a support frame (13) on both sides. The support frame (13) is detachably connected to the inner wall of the oven body (1). The tray (5) for placing the workpiece is supported by the two support frames (13) in the same drying zone (17).

10. A layered drying oven as described in claim 1, characterized in that, The air circulation assembly (21) includes a fan (211), an air inlet chamber (212), and an air outlet chamber (213). The air inlet chamber (212) and the air outlet chamber (213) are respectively connected to the heating chambers (14) on both sides of the oven body (1). The air outlet of the fan (211) is connected to the air inlet chamber (212), and the air inlet of the fan (211) is connected to the air outlet chamber (213).

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