Hot air circulating oven

Abstract

The utility model relates to the field of circulating drying ovens, in particular to a hot air circulating drying oven, and adopts the technical scheme that the hot air circulating drying oven comprises a bearing frame, a drying oven, an oven door, a storage plate, an inner wall frame, an air heater, an electric heater, a storage frame, a servo motor, a screw rod and a threaded sleeve, the servo motor drives the lead screw to rotate and drives the threaded sleeve and the storage frame to move forwards and outwards at the same time, so that the storage plate arranged in the storage frame in a limited mode is automatically moved out from the inner wall of the drying box, and a user is prevented from directly making contact with the high-temperature drying box and the high-temperature storage frame; and the guide rail main body can be used for limiting and guiding the sliding block which moves outwards along with the storage frame, so that the stability of automatic outward movement of the storage frame is improved, and the problems that when an existing hot air circulation drying oven is used for drying medicinal materials, automatic discharging is difficult, and operators are prone to being scalded are solved.

Description

Technical Field

[0001] This utility model belongs to the field of circulating ovens, specifically relating to a hot air circulating oven. Background Technology

[0002] Hot air circulating ovens are commonly used equipment in industrial processes such as drying, heating, and baking. They are widely used in food processing, pharmaceutical production, chemical industry, electronics and other industries. They accelerate the drying process of items by heating air and using a fan to evenly deliver the hot air into the oven.

[0003] The existing medicinal herb storage structure inside circulating ovens is mostly moved manually by rollers. After the medicinal herbs are dried, the storage structure is also heated by hot air. Relying on manual movement usually requires operators to have close contact with the circulating oven and storage structure, which can easily lead to burns. In addition, manual unloading is also time-consuming and labor-intensive.

[0004] Therefore, in order to address the problems mentioned above, such as the difficulty in automatically discharging materials when using existing hot air circulating ovens for drying medicinal materials and the risk of burns to operators, a new hot air circulating oven has been developed. By adding an automatic external discharge structure and a guide rail limiting structure to the circulating oven, the convenience of loading and unloading materials during use can be effectively improved, and operators can be prevented from directly contacting the high-temperature oven, thus avoiding burns. Utility Model Content

[0005] This addresses the problem that existing hot air circulating ovens have difficulty automatically discharging materials when used for drying medicinal herbs, and that they can easily burn operators.

[0006] The technical solution of this utility model is as follows: a hot air circulating drying oven, including a support frame, a drying chamber, a door, a shelf, an inner wall frame, a hot air blower, and an electric heater, and also includes a storage frame, a servo motor, a lead screw, and a threaded sleeve. The lead screw is rotatably installed at the center of the inner wall of the support frame, and the servo motor is fixedly connected to the rear end of the support frame. The output end of the servo motor passes through the rear end of the support frame and is connected to the rear end of the lead screw. A guide rail groove is opened at the upper end of the inner wall frame, and the inner wall of the guide rail groove has five sets of guide rail bodies evenly distributed. A slider is fixedly connected to the upper end of the storage frame, and five sets of sliding grooves are evenly distributed at both ends of the slider. A threaded sleeve is fixedly connected to the center of the lower end of the storage frame. Six sets of shelf panels are evenly distributed from top to bottom on the inner wall of the storage frame. A first notch is opened through the lower end of the drying chamber, and a second groove is symmetrically distributed on the left and right sides of the upper end of the drying chamber. A second notch is opened through the lower end of the inner wall frame, and a first groove is symmetrically distributed on the left and right sides of the upper end of the inner wall frame.

[0007] Preferably, the lead screw is adapted to the threaded sleeve, the left and right ends of the threaded sleeve are in contact with the inner walls of the first and second notches, the left and right ends of the slider are in contact with the inner walls of the left and right ends of the guide rail groove, and the outer wall of the guide rail body is in contact with the inner wall of the slide groove.

[0008] Preferably, the upper end of the support frame is fixed to the drying box, and the inner wall frame is fixed to the inner wall of the drying box.

[0009] Preferably, a fan slot is provided through the center of the upper end of the drying oven, and a hot air fan is fixed to the inner wall of the fan slot.

[0010] Preferably, an electric heater is fixed to the inner wall of the second tank, the lower end of the electric heater passes through the inner wall of the first tank and is located within the inner wall frame, and a protective sleeve is installed around the heating element of the electric heater.

[0011] Preferably, mesh plates are fixed to the openings at both ends of the storage frame, and air inlet slots are evenly distributed through the upper end of the storage frame.

[0012] Preferably, the front end of the drying oven has symmetrically distributed doors that are hinged to the left and right sides, and a handle is fixed to the front edge of the door.

[0013] The beneficial effects of this utility model are:

[0014] 1. The servo motor drives the lead screw to rotate, while simultaneously moving the threaded sleeve and storage frame forward and outward along the inner walls of the first and second notches. This allows the storage plate, which is limited within the storage frame, to be automatically moved outward from the inner wall of the drying oven. This facilitates the user's loading or unloading of medicinal materials and prevents the user from directly contacting the high-temperature drying oven and storage frame, thus avoiding burns.

[0015] 2. The guide rail body can limit and guide the slider that moves outward with the storage box, thereby improving the stability of the automatic outward movement of the storage box. Attached Figure Description

[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the hot air circulating oven of this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional disassembled view of the hot air circulating oven of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional disassembled view of the support frame, lead screw, and servo motor of the hot air circulating oven of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional disassembled view of the inner wall frame and drying chamber of the hot air circulating oven of this utility model.

[0020] Figure 5 The diagram shown is a three-dimensional disassembled view of the storage frame, shelf, and mesh plate of the hot air circulating oven of this utility model.

[0021] Figure 6 The diagram shown is a three-dimensional disassembled view of the electric heater and protective sleeve of the hot air circulating oven of this utility model.

[0022] Figure 7 The diagram shown is a three-dimensional structural schematic of the door of the hot air circulating oven of this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1-Support frame, 2-Drying oven, 3-Door, 4-Storage frame, 5-Shelf, 6-Inner wall frame, 7-Servo motor, 8-Lead screw, 9-First trough, 10-Guide rail groove, 11-Second trough, 12-Fan groove, 13-Hot air blower, 14-First notch, 15-Guide rail body, 16-Second notch, 17-Slider, 18-Mesh plate, 19-Groove, 20-Threaded sleeve, 21-Protective sleeve, 22-Electric heater, 23-Handle. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figures 1-7 This utility model provides an embodiment of a hot air circulating drying oven, including a support frame 1, a drying chamber 2, a door 3, a shelf 5, an inner wall frame 6, a hot air blower 13, and an electric heater 22. It also includes a storage frame 4, a servo motor 7, a lead screw 8, and a threaded sleeve 20. The lead screw 8 is rotatably mounted at the center of the inner wall of the support frame 1. The servo motor 7 is fixedly connected to the rear end of the support frame 1. The output end of the servo motor 7 passes through the rear end of the support frame 1 and connects to the rear end of the lead screw 8. A guide rail groove 10 is provided at the upper end of the inner wall frame 6, and the inner wall of the guide rail groove 10 has five evenly distributed grooves. The main body 15 of the guide rail is fixed to the upper end of the storage frame 4. A slider 17 is fixed to the upper end of the storage frame 4. Five sets of sliding grooves 19 are equidistantly distributed through the front and rear ends of the slider 17. A threaded sleeve 20 is fixed to the center of the lower end of the storage frame 4. Six sets of storage plates 5 are equidistantly distributed from top to bottom on the inner wall of the storage frame 4. A first notch 14 is opened through the lower end of the drying box 2. A second groove 11 is symmetrically distributed from left to right opened through the upper end of the drying box 2. A second notch 16 is opened through the lower end of the inner wall frame 6. A first groove 9 is symmetrically distributed from left to right opened through the upper end of the inner wall frame 6.

[0026] The servo motor 7 can drive the lead screw 8 to rotate, and at the same time, it can also drive the threaded sleeve 20 and the storage frame 4 to move forward and outward along the inner wall of the first notch 14 and the second notch 16. This allows the storage plate 5, which is limited in the storage frame 4, to be automatically moved outward from the inner wall of the drying box 2, making it easier for users to load or unload medicinal materials. This avoids direct contact between users and the high-temperature drying box 2 and storage frame 4, ensuring the user's safety. The guide rail body 15 can limit and guide the slider 17 that moves outward with the storage frame 4, thereby improving the stability of the automatic outward movement of the storage frame 4.

[0027] Please see Figures 4-5 In this embodiment, the lead screw 8 is adapted to the threaded sleeve 20. The left and right ends of the threaded sleeve 20 are in contact with the inner walls of the first notch 14 and the second notch 16. The left and right ends of the slider 17 are in contact with the inner walls of the left and right ends of the guide rail groove 10. The outer wall of the guide rail body 15 is in contact with the inner wall of the slide groove 19. In use, the guide rail groove 10 can provide additional limiting assistance for the slider 17 that moves outward with the storage frame 4, so as to further improve the stability of the storage frame 4 when it moves outward.

[0028] Please see Figures 3-7 In this embodiment, a drying chamber 2 is fixedly connected to the upper end of the support frame 1, and an inner wall frame 6 is fixedly connected to the inner wall of the drying chamber 2. During use, the inner wall frame 6 is made of a high-temperature resistant material to prevent melting during the drying process and thus avoid affecting the drying of the medicinal materials. A fan slot 12 is provided through the center of the upper end of the drying chamber 2, and a hot air blower 13 is fixedly connected to the inner wall of the fan slot 12. During use, the hot air blower 13 assists the electric heater 22 in drying the medicinal materials and circulates the hot air within the drying chamber 2. An electric heater 22 is fixedly connected to the inner wall of the second tank 11, and the lower end of the electric heater 22 passes through the inner wall of the first tank 9 and is located within the inner wall frame 6. The heating element of the electric heater 22 is surrounded by a protective sleeve 21. During use, the protective sleeve 21 can prevent medicinal material fragments from sticking to the electric heater 22, thus protecting the electric heater 22. The left and right openings of the storage frame 4 are fixed with mesh plates 18. The upper end of the storage frame 4 is provided with equidistant air inlet slots. During use, the mesh plates 18 can prevent the medicinal materials from being blown by hot air and do not affect the normal flow of hot air. The front end of the drying box 2 is hinged with symmetrically distributed boxes 3. The front edge of the boxes 3 is fixed with a handle 23. During use, the handle 23 makes it easy for the user to turn and open the boxes 3 to prevent the storage frame 4 from moving out automatically.

[0029] When in use, first pull the handle 23 to rotate and open the box door 3, and start the servo motor 7 to drive the lead screw 8 to rotate, so as to drive the threaded sleeve 20, the storage frame 4 and the slider 17 to move forward and outward along the inner wall of the first notch 14 and the second notch 16 and the outer wall of the guide rail body 15 respectively, so as to automatically move the shelf 5, which is limited in the storage frame 4, outward from the inner wall of the drying box 2.

[0030] Next, place the herbs to be dried on the shelf 5, and as described above, drive the screw 8 with the servo motor 7 to automatically reset the storage frame 4 and shelf 5 back to the inner wall of the drying chamber 2, and automatically close the chamber door 3.

[0031] Then, the hot air blower 13 and the electric heater 22 are started. The hot air blower 13 blows out hot air and the electric heater 22 generates heat to dry the medicinal materials in the drying box 2. The hot air blower 13 can also assist the electric heater 22 to circulate the hot air in the drying box 2 for drying.

[0032] After drying is complete, as described above, rotate to open the box door 3, and the servo motor 7 drives the lead screw 8 to automatically move the storage box 4 and the shelf 5 outward. Then, after the medicinal materials have cooled, the user can collect them.

[0033] Through the above steps, the servo motor 7 drives the lead screw 8 to rotate, while simultaneously moving the threaded sleeve 20 and the storage frame 4 forward and outward along the inner walls of the first notch 14 and the second notch 16. This allows the storage plate 5, which is limited within the storage frame 4, to automatically move outward from the inner wall of the drying chamber 2. This facilitates the user's loading or unloading of medicinal materials and prevents the user from directly contacting the high-temperature drying chamber 2 and storage frame 4, thus avoiding burns. The guide rail body 15 can limit and guide the slider 17 that moves outward following the storage frame 4, thereby improving the stability of the automatic outward movement of the storage frame 4. This solves the problem that existing hot air circulating ovens are difficult to automatically discharge when used for drying medicinal materials and are prone to burning operators.

[0034] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A hot air circulating drying oven, comprising a support frame (1), a drying chamber (2), a door (3), a shelf (5), an inner wall frame (6), a hot air blower (13), and an electric heater (22), characterized in that: It also includes a storage frame (4), a servo motor (7), a lead screw (8), and a threaded sleeve (20). The lead screw (8) is rotatably mounted on the center of the inner wall of the support frame (1). The servo motor (7) is fixedly connected to the rear end of the support frame (1). The output end of the servo motor (7) passes through the rear end of the support frame (1) and is connected to the rear end of the lead screw (8). The upper end of the inner wall frame (6) is provided with a guide rail groove (10). The inner wall of the guide rail groove (10) has five sets of guide rail bodies (15) evenly distributed. The upper end of the storage frame (4) is fixedly connected with a slider (17). Five sets of sliding grooves (19) are equidistantly distributed through the front and rear ends of the storage box (4). A threaded sleeve (20) is fixedly connected to the center of the lower end of the storage box (4). Six sets of storage plates (5) are equidistantly distributed from top to bottom on the inner wall of the storage box (4). A first notch (14) is opened through the lower end of the drying box (2). A second groove (11) is symmetrically distributed on the left and right sides opened through the upper end of the drying box (2). A second notch (16) is opened through the lower end of the inner wall frame (6). A first groove (9) is symmetrically distributed on the left and right sides opened through the upper end of the inner wall frame (6).

2. The hot air circulating oven according to claim 1, characterized in that: The lead screw (8) is adapted to the threaded sleeve (20). The left and right ends of the threaded sleeve (20) are in contact with the inner walls of the first notch (14) and the second notch (16). The left and right ends of the slider (17) are in contact with the inner walls of the left and right ends of the guide rail groove (10). The outer wall of the guide rail body (15) is in contact with the inner wall of the slide groove (19).

3. The hot air circulating oven according to claim 1, characterized in that: The upper end of the support frame (1) is fixed to the drying box (2), and the inner wall frame (6) is fixed to the inner wall of the drying box (2).

4. The hot air circulating oven according to claim 1, characterized in that: A fan slot (12) is provided through the center of the upper end of the drying box (2), and a hot air fan (13) is fixed to the inner wall of the fan slot (12).

5. The hot air circulating oven according to claim 1, characterized in that: An electric heater (22) is fixed to the inner wall of the second tank (11). The lower end of the electric heater (22) passes through the inner wall of the first tank (9) and is located in the inner wall frame (6). A protective sleeve (21) is installed around the heating element of the electric heater (22).

6. The hot air circulating oven according to claim 1, characterized in that: Mesh plates (18) are fixed to the openings at the left and right ends of the storage frame (4), and air inlet slots are evenly distributed through the upper end of the storage frame (4).

7. The hot air circulating oven according to claim 1, characterized in that: The front end of the drying oven (2) is hinged with symmetrically distributed doors (3), and a handle (23) is fixed to the front edge of the door (3).

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