Hot air circulating oven

Abstract

The utility model discloses a hot air circulation drying oven, which belongs to the technical field of drying ovens and comprises a drying oven body, an air blower is fixedly mounted at the top end of the drying oven body, a top plate is fixedly connected to the top of the inner wall of the drying oven body, and two electric heating structures are arranged in the drying oven body. The two side faces of the inner wall of the drying box are each provided with a set of flow guide structures, and the number of each set of flow guide structures is two. According to the drying device, the guide plates are arranged on the two sides of the interior of the drying box body and correspond to the positions, guiding airflow to flow, of the top plate, the guide plates can further guide the airflow, and the driving structure is arranged in the base and can drive the half gear to rotate by a certain angle in a reciprocating mode. And then the guide plate is driven to rotate in a reciprocating mode within a certain range, so that the airflow direction can be repeatedly and automatically adjusted, the uniformity of the airflow is conveniently controlled, raw materials are efficiently and evenly dried, and the quality of the dried materials is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of ovens, and in particular relates to a hot air circulation oven. Background Art

[0002] A hot air circulation oven is a device used to dry, bake or heat items. It provides rapid heat transfer by circulating hot air to achieve an efficient drying or baking process.

[0003] For example, in the production and processing of inorganic antibacterial agents, a hot air circulation oven is required. When the hot air circulation oven is actually used, whether it is a vertical air supply circulation method or a horizontal air supply circulation method, the air flow is progressive layer by layer, and there will be a greater priority when drying the material, resulting in a lack of uniformity in the drying of the material, which is difficult to effectively control and will affect the quality of the material. Utility Model Content

[0004] The purpose of the utility model is to provide a hot air circulation oven to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a hot air circulation oven, comprising a drying box, a blower is fixedly installed on the top of the drying box, and a top plate is fixedly connected to the top of the inner wall of the drying box, two electric heating structures are arranged in the drying box, and a group of guide structures are arranged on both sides of the inner wall of the drying box, and the number of the guide structures in a group is two;

[0006] The guide structure includes a guide plate for guiding the flow direction of the airflow, and both ends of the guide plate are provided with pin shaft assemblies fixedly connected to the inner wall of the drying box, and the guide plate is movably connected to the drying box through two pin shaft assemblies, and a half gear is fixedly connected to a side of the guide plate close to the inner wall of the drying box;

[0007] The bottom end of the drying box body is fixedly connected with a base, and a driving structure is arranged in the base for driving the half gear to rotate back and forth so as to drive the guide plate to rotate back and forth.

[0008] As a preferred embodiment, the top plate is designed as an inverted U-shaped structure, and the top plate is located above the two electric heating structures, and is used to guide the airflow to flow down from both sides thereof to one side of the electric heating structure.

[0009] As a preferred embodiment, the electric heating structure includes a protective baffle fixedly connected to the drying box body, and the protective baffle is provided with a plurality of evenly distributed through holes, and a plurality of electric heating rods are arranged on a side of the protective baffle close to the guide structure.

[0010] As a preferred embodiment, the driving structure includes two supporting cylinders, and a tooth plate is fixedly installed on the top of the supporting cylinder. Channels are provided on both sides of the inner wall of the drying box body. The tooth plate is slidably engaged in the channel, and the tooth plate is respectively engaged with two half gears in a group.

[0011] As a preferred implementation, a connecting pipe is provided in the base, and the two supporting cylinders are both connected to the connecting pipe.

[0012] As a preferred embodiment, two reinforcement columns are fixedly connected to the upper surface of the base, the reinforcement columns are in contact with the outer wall of the drying box, and the positions of the reinforcement columns correspond to the channel positions of the inner wall of the drying box, and an insulation layer is arranged inside the reinforcement columns.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a plurality of guide plates on both sides of the drying box body corresponding to the position of the top plate guiding the airflow, so that the guide plates can further guide the airflow, and a driving structure is provided in the base to drive the half gear to reciprocate and rotate at a certain angle, thereby driving the guide plates to reciprocate within a certain range, so that the direction of the airflow can be repeatedly and automatically adjusted, which is convenient for controlling the uniformity of the airflow, realizing efficient and uniform drying of the raw materials, and ensuring the quality of the materials after drying;

[0015] The utility model provides a base at the bottom end of the drying box body, and cooperates with the reinforcement columns provided on the base to reinforce the drying box body, thereby improving its stability during use. At the same time, a heat-insulating layer is provided in the reinforcement columns, which fits tightly with the drying box body, and can enhance the heat-insulating function of the weak positions of the drying box body, thereby ensuring that the hot air circulation oven has good stability and heat-insulating performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a bottom-up stereoscopic schematic diagram of the structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the connection between the driving structure and the flow guide structure of the utility model;

[0019] Figure 4 For the utility model structure Figure 3 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: 1. Drying box; 2. Top plate; 3. Electric heating rod; 4. Protective baffle; 5. Blower; 6. Guide plate; 7. Pin assembly; 8. Half gear; 9. Tooth plate; 10. Support cylinder; 11. Base; 12. Reinforcement column; 13. Insulation layer; 14. Connecting pipe. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1

[0025] See also Figure 1-4 The utility model provides a hot air circulation oven, comprising a drying box body 1, a blower 5 is fixedly installed on the top of the drying box body 1, and a top plate 2 is fixedly connected to the top of the inner wall of the drying box body 1, two electric heating structures are arranged in the drying box body 1, the top plate 2 is an inverted U-shaped structure design, and the top plate 2 is located above the two electric heating structures, and is used to guide the airflow to flow down from both sides thereof to one side of the electric heating structure, and a group of guide structures are arranged on both sides of the inner wall of the drying box body 1, and the number of a group of guide structures is two.

[0026] Specifically, Figure 1-2As shown, the electric heating structure includes a protective baffle 4 fixedly connected to the drying box body 1, and a plurality of through holes evenly distributed are opened on the protective baffle 4, and a plurality of electric heating rods 3 are arranged on a side of the protective baffle 4 close to the guide structure. After the airflow generated by the blower 5 is guided by the top plate 2, when the airflow passes through the electric heating rod 3 to form a hot airflow, and through the plurality of through holes opened on the protective baffle 4, it is convenient to ensure the uniformity of the airflow flow, and the protective baffle 4 can also play a certain shielding and protective role when loading and unloading materials.

[0027] Specifically, Figure 2-4 As shown, the guide structure includes a guide plate 6 for guiding the flow direction of the airflow. Both ends of the guide plate 6 are provided with pin shaft assemblies 7 fixedly connected to the inner wall of the drying box body 1, and the guide plate 6 is movably connected to the drying box body 1 through two pin shaft assemblies 7. A half gear 8 is fixedly connected to the side of the guide plate 6 close to the inner wall of the drying box body 1. Through the arrangement of the half gear 8, when the half gear 8 is rotated under force, it is convenient to synchronously drive the guide plate 6 to rotate within a certain amplitude range, so as to facilitate the reciprocating guidance of the airflow in different directions.

[0028] The bottom end of the drying box 1 is fixedly connected to a base 11, and a driving structure is arranged in the base 11, which is used to drive the half gear 8 to rotate back and forth to drive the guide plate 6 to rotate back and forth. The driving structure includes two supporting cylinders 10, and a tooth plate 9 is fixedly installed on the top of the supporting cylinder 10. Channels are arranged on both sides of the inner wall of the drying box 1. The tooth plate 9 is slidably engaged in the channels, and the tooth plate 9 is respectively meshed with two half gears 8 in a group. By opening a channel with the inner wall of the drying box 1, the tooth plate 9 can be limited to ensure that the tooth plate 9 can be lifted and lowered stably.

[0029] A connecting pipe 14 is provided in the base 11, and the two supporting cylinders 10 are both connected to the connecting pipe 14. By providing the connecting pipe 14 to communicate with the two supporting cylinders 10, it is convenient to synchronously control the lifting and lowering of the two supporting cylinders 10 to improve the balance of the structure during operation.

[0030] The working principle and use process of the utility model are as follows: first, open the door of the drying box 1 and push the shelf rack into the drying box 1 so that the shelf rack is located between the two protective baffles 4, close the door of the drying box 1 and start the blower 5 and the electric heating rod 3 to work, and the airflow generated by the blower 5 is guided to flow to the side of the electric heating rod 3 through the shielding of the top plate 2, and then the supporting cylinder 10 is started to reciprocate and extend to drive the tooth plate 9 to reciprocate and rise and fall, and the tooth plate 9 rotates clockwise through the meshing transmission half gear 8 during the rising process to drive the guide plate 6 to rotate clockwise, and the tooth plate 9 drives the guide plate 6 to rotate counterclockwise when descending, and the lifting distance of the tooth plate 9 is controlled within the maximum rotation degree of the half gear 8 to ensure that the guide plate 6 rotates back and forth within a certain amplitude range, so as to facilitate the airflow to be pushed to different directions to pass through the electric heating rod 3, so that the formed hot air flow can dry the material from different directions, thereby improving the uniformity of material drying.

[0031] Embodiment 2

[0032] See also Figure 1-4 The utility model provides a hot air circulation oven, including a drying box body 1, a blower 5 is fixedly installed on the top of the drying box body 1, and a top plate 2 is fixedly connected to the top of the inner wall of the drying box body 1, two electric heating structures are arranged in the drying box body 1, and a group of guide structures are arranged on both sides of the inner wall of the drying box body 1, and the number of the guide structures in a group is two.

[0033] The guide structure includes a guide plate 6 for guiding the flow direction of the airflow. Both ends of the guide plate 6 are provided with pin shaft assemblies 7 fixedly connected to the inner wall of the drying box 1, and the guide plate 6 is movably connected to the drying box 1 through two pin shaft assemblies 7. A half gear 8 is fixedly connected to one side of the guide plate 6 close to the inner wall of the drying box 1.

[0034] The bottom end of the drying box body 1 is fixedly connected with a base 11, and a driving structure is arranged in the base 11 for driving the half gear 8 to rotate back and forth so as to drive the guide plate 6 to rotate back and forth.

[0035] Specifically, Figure 2 and Figure 3 As shown, two reinforcing columns 12 are fixedly connected to the upper surface of the base 11, and the reinforcing columns 12 are in contact with the outer wall of the drying box 1, and the positions of the reinforcing columns 12 correspond to the channel positions of the inner wall of the drying box 1. A thermal insulation layer 13 is arranged in the reinforcing columns 12. The base 11 cooperates with the reinforcing columns 12 to reinforce the drying box 1 and improve its stability during use. At the same time, the thermal insulation layer 13 is arranged in the reinforcing columns 12, which fits tightly with the drying box 1 and can improve the thermal insulation function of the weak positions of the drying box 1, such as the channel positions of the drying box 1.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hot air circulation oven, comprising a drying box (1), characterized in that: A blower (5) is fixedly installed at the top of the drying box (1), and a top plate (2) is fixedly connected to the top of the inner wall of the drying box (1), two electric heating structures are arranged in the drying box (1), and a group of guide structures are arranged on both sides of the inner wall of the drying box (1), and the number of the guide structures in a group is two; The guide structure comprises a guide plate (6) for guiding the flow direction of the airflow, and both ends of the guide plate (6) are provided with a pin assembly (7) fixedly connected to the inner wall of the drying box (1), and the guide plate (6) is movably connected to the drying box (1) through the two pin assemblies (7), and a half gear (8) is fixedly connected to a side of the guide plate (6) close to the inner wall of the drying box (1); The bottom end of the drying box (1) is fixedly connected to a base (11), and a driving structure is arranged inside the base (11) for driving the half gear (8) to rotate back and forth to drive the guide plate (6) to rotate back and forth. The top plate (2) is designed as an inverted U-shaped structure, and the top plate (2) is located above the two electric heating structures, and is used to guide the airflow to flow down from both sides thereof to one side of the electric heating structure. The electric heating structure comprises a protective baffle (4) fixedly connected to the drying box body (1), and the protective baffle (4) is provided with a plurality of through holes evenly distributed in positions, and a plurality of electric heating rods (3) are arranged on a side of the protective baffle (4) close to the guide structure.

2. A hot air circulation oven according to claim 1, characterized in that: The driving structure comprises two supporting cylinders (10), and a tooth plate (9) is fixedly mounted on the top of the supporting cylinder (10). Channels are arranged in both side surfaces of the inner wall of the drying box (1), and the tooth plate (9) is slidably engaged in the channels, and the tooth plate (9) is respectively meshed with two inner half gears (8) of a group.

3. A hot air circulation oven according to claim 2, characterized in that: A connecting pipe (14) is arranged inside the base (11), and the two supporting cylinders (10) are both connected to the connecting pipe (14).

4. A hot air circulation oven according to claim 2, characterized in that: Two reinforcement columns (12) are fixedly connected to the upper surface of the base (11); the reinforcement columns (12) are in contact with the outer wall of the drying box (1), and the positions of the reinforcement columns (12) correspond to the positions of the channels on the inner wall of the drying box (1); and a heat-insulating layer (13) is provided inside the reinforcement columns (12).

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