Circulating air volume adjusting structure of oven

Abstract

The utility model discloses a circulating air volume adjusting structure of an oven, which comprises an oven main body, a baking cavity, a fan module, an air return pipeline and an air inlet pipeline, and adjusting structures are arranged at the joints of the two sides of the baking cavity, the air return pipeline and the air inlet pipeline. The adjusting structure comprises ventilation net plates arranged on the two sides of the baking cavity and air volume adjusting net plates movably arranged on the ventilation net plates, a plurality of ventilation holes are formed in the ventilation net plates and the air volume adjusting net plates in an array mode, and the air volume adjusting net plates are tightly attached to the ventilation net plates to move up and down. According to the utility model, the passing of circularly flowing air flow is realized through the ventilation holes in the ventilation screen plate, and the passing amount of the air flow is correspondingly regulated and controlled by the air volume regulation screen plate, so that the air volume control is realized at the front end and the rear end of the baking cavity, and the air volume control effect can better meet the requirements of baking or cooling products; and the adjusting effect is not influenced by other conditions.

Description

Technical Field

[0001] This utility model relates to the field of automated production and processing technology, and in particular to a circulating air volume adjustment structure for an oven. Background Technology

[0002] In the production and processing of many products, baking in an oven is generally required to remove residual moisture adhering to the product after washing and other processes. In a conventional oven, the product is first transported to the heating section, where the air is heated and dried. Then, the product is transported to the cooling section to cool down, and finally, the product is sent out after cooling to room temperature, completing the drying process. Different products require different airflow volumes for drying and cooling. A common approach is to control the fan power to alter the airflow volume and speed circulating in the duct. However, this method is susceptible to limitations due to factors such as motor response efficiency, the influence of the ductwork and filters on airflow, resulting in poor airflow control and an inability to effectively adapt to varying needs.

[0003] Therefore, existing technologies have shortcomings and need to be improved. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a circulating air volume adjustment structure for an oven.

[0005] The technical solution of this utility model is as follows: A circulating air volume adjustment structure for an oven is provided, comprising: an oven body, a baking cavity disposed inside the oven body, a fan module disposed on the top of the oven body, a return air pipe connecting the air inlet of the fan module to the baking cavity, and an air outlet connecting the air outlet of the fan module to the baking cavity. An adjustment structure is provided at the connection between the baking cavity and the return air pipe and the air outlet, the adjustment structure comprising: a ventilation mesh plate disposed on both sides of the baking cavity, and an air volume adjustment mesh plate movably disposed on the ventilation mesh plate. The ventilation mesh plate and the air volume adjustment mesh plate are each provided with an array of ventilation holes, and the air volume adjustment mesh plate moves up and down close to the ventilation mesh plate.

[0006] Furthermore, the ventilation mesh plate is provided with several sets of air volume regulating mesh plates.

[0007] Furthermore, the ventilation mesh plate has adjustment grooves on both sides along the vertical direction, and the side of the air volume adjustment mesh plate is embedded in the adjustment groove and moves up and down along the adjustment groove.

[0008] Furthermore, the air volume regulating mesh plate is connected to an air volume regulating drive mechanism, which drives the air volume regulating plate to move up and down reciprocally.

[0009] Furthermore, a number of air direction adjustment plates are provided on the air intake side of the ventilation mesh plate near the air intake pipe. The upper and lower ends of the ventilation mesh plate are bent outward to form folded edges. Mounting holes are provided on the upper and lower folded edges of the ventilation mesh plate corresponding to the air direction adjustment plates. The rotating shaft of the air direction adjustment plate passes through the mounting holes.

[0010] Furthermore, a linkage mechanism is provided between the wind direction adjustment plates, and the linkage mechanism is connected to the wind direction adjustment plates respectively.

[0011] Furthermore, the linkage mechanism adopts a push rod, which is set on one or both sides of the upper and lower folded edges of the ventilation mesh plate. Several rocker arms are set on the push rod corresponding to the wind direction adjustment plate. One end of the rocker arm is connected to the rotating shaft of the wind direction adjustment plate, and the other end of the rocker arm is provided with a slot. An adjustment block is set on the push rod corresponding to the slot, and the adjustment block is embedded in the slot.

[0012] Furthermore, the linkage mechanism adopts a rack and pinion, which is set on one or both sides of the upper and lower folded edges of the ventilation mesh plate, and the wind direction adjustment plate is equipped with a gear corresponding to the rack and pinion, and the gear meshes with the rack and pinion.

[0013] Furthermore, an air volume sensor is installed in the return air pipeline.

[0014] By adopting the above solution, this utility model realizes the passage of circulating airflow through the ventilation holes on the ventilation mesh plate, and the air volume regulating mesh plate adjusts the airflow accordingly, thereby realizing air volume control at the front and rear ends of the baking cavity. This makes the air volume control effect more able to meet the needs of baking or cooling the product, and will not be affected by other conditions. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a cross-sectional view of the present invention.

[0017] Figure 3 This is a schematic diagram of the adjustment structure. Detailed Implementation

[0018] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Please see Figures 1 to 3This utility model provides a circulating air volume adjustment structure for an oven, comprising: an oven body 1, a baking cavity 11 disposed inside the oven body 1, a fan module 2 disposed on the top of the oven body 1, a return air pipe 12 connecting the air inlet of the fan module 2 to the baking cavity 11, and an air outlet connecting the air outlet of the fan module 2 to the baking cavity 11. An adjustment structure 3 is provided at the connection between the baking cavity 11 and the return air pipe 12 and the air outlet pipe 13. The adjustment structure 3 includes: ventilation mesh plates 31 disposed on both sides of the baking cavity 11, and an air volume adjustment mesh plate 32 movably disposed on the ventilation mesh plates 31. A plurality of ventilation holes 311 are arranged in an array on both the ventilation mesh plates 31 and the air volume adjustment mesh plate 32. The air volume adjustment mesh plate 32 moves up and down closely against the ventilation mesh plates 31.

[0020] When the ventilation holes 311 on the airflow regulating plate near the air intake pipe 13 align with the ventilation holes 311 on the ventilation mesh plate 31, the airflow can directly pass through the ventilation holes 311, thus entering the baking cavity 11 with maximum airflow and velocity, effectively drying and cooling the product. When the airflow regulating plate is moved, the ventilation holes 311 on the airflow regulating plate and the ventilation holes 311 on the ventilation mesh plate 31 gradually shift, thereby reducing the flow rate of the ventilation holes 311 and controlling the airflow and velocity entering the baking cavity 11.

[0021] When the ventilation holes 311 on the airflow regulating plate near the return air duct 12 align with the ventilation holes 311 on the ventilation mesh plate 31, the airflow can directly pass through the ventilation holes 311, thus entering the return air duct 12 with maximum airflow and speed to quickly expel the gas inside the baking cavity 11. During the cooling process, this accelerates the temperature drop inside the baking cavity 11. When the airflow regulating plate is moved, the ventilation holes 311 on the airflow regulating plate and the ventilation holes 311 on the ventilation mesh plate 31 gradually shift, thereby reducing the flow rate of the ventilation holes 311 and allowing more gas to remain inside the baking cavity 11. During the heating and baking process, this allows the hot airflow to concentrate inside the baking cavity 11, thereby improving the drying efficiency of the products inside the baking cavity 11.

[0022] In some embodiments, the ventilation mesh plate 31 is provided with a plurality of airflow regulating mesh plates 32. The airflow is regulated by the joint operation of multiple sets of airflow regulating mesh plates 32, thereby effectively improving the regulation effect. In some optional embodiments, there is a certain gap between adjacent airflow regulating mesh plates 32 to avoid completely blocking the ventilation holes 311 on the ventilation mesh plate 31, which would affect the drying and cooling effect or even damage the equipment.

[0023] In some embodiments, the ventilation mesh plate 31 has adjustment grooves on both sides along the vertical direction, and the side of the airflow regulating mesh plate 32 is embedded in the adjustment grooves and moves up and down along the adjustment grooves. By providing adjustment grooves, the stability of the airflow regulating mesh plate 32 during vertical movement can be ensured.

[0024] In some embodiments, the airflow regulating mesh plate 32 is connected to an airflow regulating drive mechanism, which drives the airflow regulating plate to move up and down reciprocally. By driving the airflow regulating plate with the airflow regulating drive mechanism, manual operation is avoided, thereby improving the overall adjustment accuracy and meeting the airflow control requirements during operation.

[0025] In some embodiments, a plurality of airflow adjustment plates 33 are provided on the air intake side of the ventilation mesh plate 31 near the air intake duct 13. The upper and lower ends of the ventilation mesh plate 31 are bent outward to form folded edges. Mounting holes 312 are provided on the upper and lower folded edges of the ventilation mesh plate 31 corresponding to the airflow adjustment plates 33. The rotating shaft of the airflow adjustment plate 33 passes through the mounting holes 312. By setting the airflow adjustment plates 33 and changing the angle of the airflow adjustment plates 33, the airflow direction entering the baking cavity 11 from the air intake duct 13 will be shifted in the direction of the airflow adjustment plates 33, thereby guiding the airflow to the location of the product and improving the drying and cooling effect.

[0026] In some embodiments, a linkage mechanism is provided between the wind direction adjustment plates 33, and the linkage mechanism is connected to each of the wind direction adjustment plates 33. The linkage mechanism can simultaneously drive multiple sets of wind direction adjustment plates 33 to rotate, thereby improving adjustment efficiency. In some embodiments, a motor drives the linkage mechanism to move, thereby automating the adjustment of the wind direction adjustment plates 33, avoiding manual intervention, and improving the efficiency and accuracy of adjustment.

[0027] In some embodiments, the linkage mechanism is a push rod, which is disposed on one or both sides of the upper and lower folded edges of the ventilation mesh plate 31. Several rocker arms are disposed on the push rod corresponding to the wind direction adjustment plate 33. One end of each rocker arm is connected to the rotation axis of the wind direction adjustment plate 33, and the other end of each rocker arm has a slot. An adjusting block is disposed on the push rod corresponding to the slot, and the adjusting block is embedded in the slot. When the push rod reciprocates, the adjusting block moves in the slot, thereby pushing the rocker arm, causing the rocker arm to rotate around the rotation axis of the wind direction adjustment plate 33, thus adjusting the direction of the wind direction adjustment plate 33.

[0028] In some embodiments, the linkage mechanism employs a rack and pinion mechanism. The rack and pinion are disposed on one or both sides of the upper and lower folded edges of the ventilation mesh plate 31. The wind direction adjusting plate 33 is provided with a gear corresponding to the rack and pinion, and the gear meshes with the rack and pinion. When the rack and pinion reciprocate, the gear meshing with the rack and pinion rotates, thereby driving the wind direction adjusting plate 33 to rotate, thus meeting the requirements for wind direction adjustment.

[0029] In some embodiments, an airflow sensor is provided in the return air duct 12. The airflow sensor detects the airflow, allowing the operator to determine the airflow level inside the baking cavity 11 based on the sensor's readings, and thus adjust the airflow regulating mesh 32 to meet the airflow requirements within the baking cavity 11.

[0030] In summary, this utility model achieves circulating airflow through the ventilation holes on the ventilation mesh plate, and the airflow regulating mesh plate adjusts the airflow accordingly, thereby achieving airflow control at the front and rear ends of the baking cavity. This makes the airflow control effect more able to meet the needs of baking or cooling products, and will not be affected by other conditions.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circulating airflow regulating structure for an oven, comprising: The oven body comprises a baking cavity disposed inside the oven body, a fan module disposed on the top of the oven body, a return air pipe connecting the air inlet of the fan module to the baking cavity, and an air outlet connecting the air outlet of the fan module to the baking cavity. The oven body is characterized by having adjustable structures at the connections between its sides and the return air pipe and the air inlet pipe. These adjustable structures include: ventilation mesh plates disposed on both sides of the baking cavity, and an airflow regulating mesh plate movably disposed on the ventilation mesh plates. Both the ventilation mesh plates and the airflow regulating mesh plate have a plurality of ventilation holes arranged in an array. The airflow regulating mesh plate moves up and down close to the ventilation mesh plates.

2. The circulating air volume adjustment structure of the oven according to claim 1, characterized in that, The ventilation mesh panel is equipped with several sets of air volume regulating mesh panels.

3. The circulating air volume adjustment structure of the oven according to claim 1, characterized in that, The ventilation mesh plate has adjustment grooves on both sides along the vertical direction. The side of the air volume adjustment mesh plate is embedded in the adjustment groove and moves up and down along the adjustment groove.

4. The circulating air volume adjustment structure of the oven according to claim 1, characterized in that, The air volume regulating mesh plate is connected to an air volume regulating drive mechanism, which drives the air volume regulating plate to move up and down reciprocally.

5. The circulating air volume adjustment structure of the oven according to claim 1, characterized in that, Several airflow adjustment plates are provided on the air intake side of the ventilation mesh plate near the air intake pipe. The upper and lower ends of the ventilation mesh plate are bent outward to form folded edges. The upper and lower folded edges of the ventilation mesh plate are provided with mounting holes corresponding to the airflow adjustment plates. The rotating shaft of the airflow adjustment plate passes through the mounting holes.

6. The circulating air volume adjustment structure of the oven according to claim 5, characterized in that, A linkage mechanism is provided between the wind direction adjustment plates, and the linkage mechanism is connected to the wind direction adjustment plates respectively.

7. The circulating air volume adjustment structure for the oven according to claim 6, characterized in that, The linkage mechanism adopts a push rod, which is set on one or both sides of the upper and lower folded edges of the ventilation mesh plate. Several rocker arms are set on the push rod corresponding to the wind direction adjustment plate. One end of the rocker arm is connected to the rotating shaft of the wind direction adjustment plate, and the other end of the rocker arm is provided with a slot. An adjustment block is set on the push rod corresponding to the slot, and the adjustment block is embedded in the slot.

8. The circulating air volume adjustment structure of the oven according to claim 6, characterized in that, The linkage mechanism adopts a rack and pinion, which is set on one or both sides of the upper and lower folded edges of the ventilation mesh plate. The wind direction adjustment plate is equipped with a gear corresponding to the rack and pinion, and the gear meshes with the rack and pinion.

9. The circulating air volume adjustment structure for the oven according to claim 1, characterized in that, An air volume sensor is installed in the return air pipeline.

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