Rapid baking type chain net type oven with double-air-speed independent control function

Abstract

The utility model provides a double-wind-speed independently-controlled quick baking chain net type oven. The double-wind-speed independently-controlled quick baking chain net type oven comprises an oven body, a heating platform, a chain net, a driving chain wheel and a transmission motor, wherein the chain net is horizontally arranged in the oven body, and the driving chain wheel and the transmission motor drive the chain net to move. The two heat conduction air boxes are arranged on the upper side and the lower side of the heating platform respectively, hot air openings aligned with the heating platform are formed in the heat conduction air boxes, the heating cavity is arranged on the back of the oven body, a heating wire and two fans are arranged in the heating cavity, the number of the fans is two, and the two fans are communicated with the two heat conduction air boxes respectively. The upper side and the lower side of the heating platform are heated through the heat conduction air boxes which supply air independently, the heating air volume and air pressure can be adjusted independently according to baking requirements, meanwhile, hot air is recycled through air inlet and air return circulation formed by the heat conduction air boxes, heat escape is avoided, the baking efficiency is improved, and energy is saved.

Description

Technical Field

[0001] This utility model relates to the field of hot air circulating ovens, and more particularly to a fast baking type chain mesh oven with independent dual wind speed control. Background Technology

[0002] Currently, most chain-mesh hot air circulating electric ovens use a set of circular resistance heating tubes as the heat source, placed in the heating chamber on the side of the oven. A motor drives a mixing fan to blow air onto the heating tubes, allowing for convection heat exchange. The fan blades are positioned in the middle of the heating tubes within the heating chamber, while the motor is located outside the chamber and supported by the oven wall. The high-speed rotation of the fan blades creates hot air circulation, allowing hot air to enter the oven through upper and lower hot air ducts, baking the food on the chain mesh from both above and below. After heating the food, the hot air returns to the heating chamber through the return air duct. The conveyor speed of the chain mesh can be varied within a certain range to adjust the baking time of the food.

[0003] During baking, the heating system is activated, and a fan forces the heat generated by the heating elements from the bottom of the oven into the oven chamber. At the same time, the conveyor belt rotates at a constant speed via a variable-speed motor, causing the baking trays (food) placed on the conveyor belt to be transported from the oven inlet into the oven chamber for baking, and then exiting from the oven outlet. Because the conveyor belt runs continuously, a production line-style food baking process can be achieved.

[0004] However, existing ovens have the following problems:

[0005] 1. Although this mixed-flow fan blade and heating tube structure can bake food on the chain, the air pressure and air volume are relatively small when the air is heated by convection through the heating tube and sprayed onto the product. In other words, the heat transfer efficiency is low, the baking cycle is long, and rapid baking cannot be achieved.

[0006] 2. In traditional structures, the pressure of the hot air jet from the upper and lower air outlets onto the baked goods is fixed, and the airflow and pressure cannot be adjusted independently. Furthermore, the hot air pressure entering the heating chamber from the upper and lower sides is the same. In chain-mesh baking, food is typically placed on a baking tray and then on the chain mesh before being fed into the oven cavity. Therefore, it is desirable for the hot air pressure in the lower air guide box to be higher than that in the upper side, and for it to be self-adjusting according to different products, which is beneficial for heating and baking the bottom of the food. This single-blade air outlet structure cannot meet this requirement. Utility Model Content

[0007] In order to solve the technical problems existing in the prior art, the present invention provides a fast baking type chain mesh oven with independent dual wind speed control to solve the above problems.

[0008] The technical solution adopted by this utility model to solve its technical problem is: a fast baking chain mesh oven with independent dual wind speed control, including an oven body, a heating platform, including a chain mesh horizontally arranged in the oven body and a drive sprocket and transmission motor for driving the chain mesh; two heat-conducting air boxes, respectively arranged on the upper and lower sides of the heating platform, each heat-conducting air box is provided with a hot air outlet aligned with the heating platform, a heating chamber is arranged on the back of the oven body, the heating chamber is provided with heating wires and fans, and the number of fans is two and each is connected to one of the two heat-conducting air boxes.

[0009] Furthermore, the fan includes a volute, a centrifugal impeller rotatably mounted in the volute, and a blower motor that drives the centrifugal impeller to rotate.

[0010] Furthermore: a panel is provided at the front of the oven body, and the heat-conducting air box is provided at intervals with the panel and the oven body to form a return air duct for the flow of hot air, and the return air duct is connected to the heating chamber.

[0011] Furthermore: the hot air inlet is opened on the inner side of the heat-conducting air box, and an inclined air-guiding platform is provided on the outer side, the air-guiding platform being connected to the heating chamber; an air guide plate is provided on the air-guiding platform, and an oil fume filter is installed at the end of the air-guiding platform.

[0012] Furthermore: the heat-conducting air box has an air inlet and a diffusion area communicating with the air inlet, a plurality of air guide plates are installed in the diffusion area, the hot air outlet is opened in the diffusion area, and the air inlet is connected to the fan.

[0013] The beneficial effects of this utility model are that the rapid baking type chain mesh oven with independent dual wind speed control heats the upper and lower sides of the heating platform through an independently supplied heat-conducting air box. The heating air volume and air pressure can be independently adjusted according to the baking requirements. At the same time, the air intake and return circulation formed by the heat-conducting air box circulates the hot air, avoids heat loss, improves baking efficiency, and saves energy. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the rapid baking chain mesh oven with independent dual wind speed control of this utility model;

[0016] Figure 2 This is a structural diagram of the oven body (the side of the oven body is omitted);

[0017] Figure 3 and Figure 4This is a structural diagram of the oven body (excluding the top of the oven body);

[0018] Figure 5 This is a structural diagram of the heat-conducting air box and fan installation;

[0019] Figure 6 This is a structural diagram of the heat-conducting air box (top of the heat-conducting air box omitted) and the fan installation;

[0020] Figure 7 This is a schematic diagram of the heat-conducting air box.

[0021] In the diagram: 1. Oven body; 2. Heating platform; 3. Drive sprocket; 4. Transmission motor; 5. Heat-conducting air box; 6. Hot air outlet; 7. Heating chamber; 8. Heating wire; 9. Fan; 10. Blower motor; 11. Panel; 12. Return air duct; 13. Air guide platform; 14. Air guide plate; 15. Oil fume filter; 16. Air inlet nozzle; 17. Diffusion zone. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0025] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0026] like Figures 1 to 7 As shown, this utility model provides a rapid baking type chain mesh oven with independent dual wind speed control, including an oven body, a heating platform, a chain mesh horizontally arranged in the oven body, a drive sprocket and a transmission motor for driving the chain mesh; two heat-conducting air boxes, respectively arranged on the upper and lower sides of the heating platform, each heat-conducting air box having a hot air outlet aligned with the heating platform; a heating chamber, located on the back of the oven body, the heating chamber containing heating wires and fans, and two fans connected to the two heat-conducting air boxes respectively.

[0027] The oven heat source of this application is obtained centrally through a heating chamber. Heating wires in the heating chamber heat the air inside. Two fans deliver the hot air from the heating chamber to heat-conducting air boxes located above and below the heating platform, respectively. The top and bottom surfaces of the heating platform are heated by these two heat-conducting air boxes. The heating of the upper and lower parts of the heating platform is provided by their respective heat-conducting air boxes, and each heat-conducting air box is connected to its own fan. This allows for independent adjustment and control of the heating airflow and air pressure of the upper and lower parts of the heating platform, optimizing the heating of the objects to be baked and improving baking quality. This is a function not available in existing single-blade air outlet structures.

[0028] The fan includes a volute, a centrifugal impeller rotatably mounted within the volute, and a blower motor that drives the centrifugal impeller. By employing a centrifugal impeller structure and housing it within the volute, the rotation of the impeller increases the pressure on the gas, resulting in higher air velocity and thus higher air pressure. Simultaneously, the volute's spiral design ensures smoother airflow, reducing turbulence and eddies, improving the air delivery to the heat-conducting air box, thereby reducing energy loss and increasing baking efficiency.

[0029] The front of the oven body is provided with a panel, and the heat-conducting air box is provided at intervals with the panel and the oven body to form a return air duct for the flow of hot air. The return air duct is connected to the heating chamber.

[0030] The heat-conducting air box has certain gaps between itself and the oven body and the panel. These gaps form a return air duct. The hot air nozzle sprays hot air onto the heating platform. The return air duct is used for air return. The airflow passes through the gap between the panel and the heat-conducting air box, reaches the top of the heat-conducting air box, and then flows into the heating chamber. This completes the return air circulation. The return airflow is collected from the heating platform and has a certain temperature. After a short time of heating, the heating chamber reaches the required working temperature and can be drawn back into the heat-conducting air box by the fan. This circulation avoids excessive heat impact from the outside environment and ensures that the airflow is circulated and heated, greatly saving energy, improving heating efficiency, and guaranteeing the baking effect.

[0031] The hot air inlet is opened on the inner side of the heat-conducting air box, and an inclined air-guiding platform is provided on the outer side. The air-guiding platform is connected to the heating chamber. An air guide plate is provided on the air-guiding platform, and an oil fume filter is installed at the end of the air-guiding platform.

[0032] The upper part of the heat-conducting air box is the area through which return air passes. The inclined air guide platform is similar to increasing the airflow space at the end of the channel. Combined with the suction effect of the fan in the heating chamber, this helps to create a certain negative pressure, promoting the flow of return air. The air guide plate is designed to guide the airflow and prevent the return airflow from being too crowded into the fume filter. It is located at the front of the fume filter and is designed to be narrower at the front and wider at the back. In this way, the return airflow is guided to the fume filter for adsorption and purification, and finally returns to the heating chamber for reuse. The fume filter can effectively adsorb oil fumes and other impurities in the return air, ensuring the working environment in the heating chamber, and also preventing the hot air from containing too much baking fumes, which would affect the baking quality.

[0033] The heat-conducting air box has an air inlet and a diffusion area communicating with the air inlet. Several air guide plates are installed in the diffusion area. The hot air outlet is opened in the diffusion area. The air inlet is connected to the fan.

[0034] The air inlet has a slender nozzle design, which facilitates docking with the Feng family's volute. The diffuser is connected after the air inlet and has a wide cavity structure design. With the help of the air guide plate, it can evenly distribute the hot air blown in from the air inlet, so that the diffuser can establish a stable air pressure. Then, through the hot air outlet, it can achieve a stable hot air blowing effect on the heating platform.

[0035] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A double air speed independently controlled rapid baking type chain mesh oven, characterized in that: include Oven body (1). The heating platform (2) includes a chain mesh horizontally arranged in the oven body (1), a drive sprocket (3) for driving the chain mesh, and a transmission motor (4). Two heat-conducting air boxes (5) are respectively set on the upper and lower sides of the heating platform (2), and the heat-conducting air boxes (5) are provided with hot air outlets (6) aligned with the heating platform (2). The heating chamber (7) is located on the back of the oven body (1). The heating chamber (7) is provided with heating wire (8) and fan (9). There are two fans (9) and they are connected to two heat-conducting air boxes (5) respectively.

2. A dual air speed independent control rapid bake chain grate oven as claimed in claim 1 wherein: The fan (9) includes a volute, a centrifugal impeller rotatably mounted in the volute, and a blower motor (10) that drives the centrifugal impeller to rotate.

3. A dual air speed independent control rapid bake chain grate oven as claimed in claim 2 wherein: The oven body (1) is provided with a panel (11) at the front. The heat-conducting air box (5) is provided at intervals with the panel (11) and the oven body (1) to form a return air duct (12) for the flow of hot air. The return air duct (12) is connected to the heating chamber (7).

4. A dual air speed independent control rapid bake chain grate oven as claimed in claim 3 wherein: The hot air inlet (6) is opened on the inner side of the heat-conducting air box (5), and there is an inclined air guide platform (13) on the outer side. The air guide platform (13) is connected to the heating chamber (7). An air guide plate (14) is provided on the air guide platform (13), and an oil fume filter device (15) is installed at the end of the air guide platform (13).

5. A rapid baking chain mesh oven with independent dual-speed control as described in claim 4, characterized in that: The heat-conducting air box (5) has an air inlet (16) and a diffusion zone (17) connected to the air inlet (16). Several air guide plates (14) are installed in the diffusion zone (17). The hot air outlet (6) is opened in the diffusion zone (17). The air inlet (16) is connected to the fan (9).

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