A hot air circulating multi-layer uniform baking machine for bread

By introducing a hot air circulation path and a dynamic clamping mechanism into the dough drying equipment, the problems of uneven hot air and sticking in traditional equipment have been solved, achieving uniform drying and efficient production of dough.

CN224398223UActive Publication Date: 2026-06-23HUNAN XIANGTA FOOD TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN XIANGTA FOOD TECHNOLOGY CO LTD
Filing Date
2025-07-31
Publication Date
2026-06-23

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Abstract

The utility model discloses a kind of hot air circulation's flat cake multilayer uniform drying machine, it is related to flat cake processing technical field, the problem presented in view of background art, the following scheme is presented, including processing platform, the upper surface of the processing platform is fixedly connected with drying oven, the front of drying oven is rotatably connected with sealing door, the left side of drying oven is fixedly connected with drying assembly, the left inner wall of drying oven is rotatably connected with uniform assembly, and drying assembly includes fixed frame.The utility model is through the cooperation setting of drying assembly and uniform assembly, can form the closed loop path of collecting cover→circulation pipe→diffuser cover→collecting cover→circulation pipe in drying to in, forced hot air is oriented circulation in case, from multiple directions to the flat cake in the clamping mechanism in rotation process is carried out hot air circulation blowing treatment, the flat cake on multilayer clamping mechanism is heated dynamically, air-permeable net of circular disc side promotes hot air penetration, avoid rotating dead angle, so as to be able to improve the drying efficiency and uniformity of flat cake.
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Description

Technical Field

[0001] This utility model relates to the field of dough processing technology, and in particular to a multi-layer uniform dryer for dough with hot air circulation. Background Technology

[0002] After production, noodles are usually dried to make them into cakes for easier sales and packaging. Instant noodles are packaged in this way. Therefore, a dryer is needed to dry the noodles during the production process.

[0003] In traditional dough drying processes, fixed multi-layer drying racks are often used in conjunction with hot air equipment. Such equipment has significant drawbacks: First, the hot air is prone to forming eddies or dead zones in the drying chamber, resulting in uneven heating of dough in different locations, with some areas being over-dried or under-dried, leading to uneven drying. In addition, when multiple layers of dough are stacked, the upper layer blocks the airflow of the lower layer, requiring frequent turning or extending the drying time. Traditional wire mesh trays or pallets block the hot air contact surface and are prone to causing the dough to stick together and deform, reducing drying efficiency and leaving room for improvement. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a multi-layer uniform dryer for dough cakes with hot air circulation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-layer uniform dryer for hot air circulation dough includes a processing table. A drying chamber is fixedly connected to the upper surface of the processing table. A sealing door is rotatably connected to the front of the drying chamber. A drying component is fixedly connected to the left side of the drying chamber. A uniform drying component is rotatably connected to the left inner wall of the drying chamber. The drying component includes a fixed frame. A fan is fixedly connected to the inner wall of the fixed frame. An air inlet frame is fixedly connected to the lower surface of the fixed frame. An air inlet cavity is opened inside the air inlet frame. A filter screen and an electric heating wire are fixedly connected to the inner wall of the air inlet cavity. A connecting frame is fixedly connected to the upper surface of the fixed frame. A flow collector is fixedly connected to the right inner wall of the drying chamber. A circulation pipe is fixedly connected to the right side of the drying chamber. A flow diffuser is fixedly connected to the inner top wall of the drying chamber.

[0007] Preferably, the end of the circulation pipe away from the right side of the drying chamber extends to the upper surface of the drying chamber and is connected to the interior of the diffuser shroud.

[0008] Preferably, the uniform component includes a rotating shaft, a transverse bevel gear fixedly connected to the surface of the rotating shaft, a servo motor fixedly connected to the upper surface of the drying chamber, a connecting shaft fixedly connected to the output end of the servo motor, and a vertical bevel gear fixedly connected to the bottom end of the connecting shaft, wherein the vertical bevel gear meshes with the transverse bevel gear.

[0009] Preferably, a circular disk is fixedly connected to the right end of the rotating shaft, a circular groove is provided on the side of the circular disk, a breathable mesh is fixedly connected to the inner wall of the circular groove, and several clamping mechanisms are fixedly connected to the right side of the circular disk.

[0010] Preferably, the clamping mechanism includes a lower positioning frame, which is fixedly connected to the right side of the circular disk. An upper positioning frame is rotatably connected to the back of the lower positioning frame via two hinges. Several extrusion rods in different positions are fixedly connected to the inner walls of both the lower and upper positioning frames.

[0011] Preferably, a positioning magnet and an iron block are fixedly connected to the front of the lower positioning frame and the upper positioning frame, respectively, and the positions of the positioning magnet and the iron block are corresponding.

[0012] The beneficial effects of this utility model are as follows:

[0013] By coordinating the drying and homogenizing components, a closed-loop path is formed inwards during drying: condenser hood → circulation pipe → diffuser hood → condenser hood → circulation pipe. This forces hot air to circulate directionally within the chamber, circulating hot air from multiple directions to the dough within the clamping mechanism during rotation. This ensures dynamic heating of the dough on the multi-layered clamping mechanism. The breathable mesh on the side of the circular disc promotes hot air penetration and avoids dead angles during rotation, thereby improving the drying efficiency and uniformity of the dough. Furthermore, the upper and lower positioning frames, through a staggered distribution of extrusion rods, fix the dough with minimal contact area, ensuring that the dough is not blocked from heating while also preventing it from sticking and deforming, thus providing good protection for the dough. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a hot air circulating multi-layer uniform dryer for dough cakes proposed in this utility model.

[0015] Figure 2 This is a cross-sectional view of the drying chamber of a hot air circulating multi-layer uniform dryer for flatbread proposed in this utility model.

[0016] Figure 3 This utility model proposes a multi-layer uniform dryer for dough cakes with hot air circulation. Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0017] Figure 4 This is a three-dimensional structural diagram of the clamping mechanism of a hot air circulating multi-layer uniform dryer for dough cakes proposed in this utility model.

[0018] In the diagram: 1. Processing table; 2. Drying oven; 3. Sealed door; 4. Fixing frame; 5. Fan; 6. Air inlet frame; 7. Filter screen; 8. Electric heating wire; 9. Connecting frame; 10. Flow collector; 11. Circulation pipe; 12. Flow diffuser; 13. Rotating shaft; 14. Horizontal bevel gear; 15. Servo motor; 16. Connecting shaft; 17. Vertical bevel gear; 18. Circular disc; 19. Ventilation mesh; 20. Lower positioning frame; 21. Hinge; 22. Upper positioning frame; 23. Extrusion rod; 24. Positioning magnet; 25. Iron block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Example

[0020] Reference Figure 1-4 A multi-layer uniform drying machine for hot air circulation dough includes a processing table 1, a drying chamber 2 fixedly connected to the upper surface of the processing table 1, a sealing door 3 rotatably connected to the front of the drying chamber 2, a drying component fixedly connected to the left side of the drying chamber 2, a uniform component rotatably connected to the left inner wall of the drying chamber 2, the drying component includes a fixed frame 4, a fan 5 fixedly connected to the inner wall of the fixed frame 4, an air inlet frame 6 fixedly connected to the lower surface of the fixed frame 4, an air inlet cavity is opened inside the air inlet frame 6, a filter screen 7 and an electric heating wire 8 are fixedly connected to the inner wall of the air inlet cavity respectively, a connecting frame 9 is fixedly connected to the upper surface of the fixed frame 4, a flow collector 10 is fixedly connected to the right inner wall of the drying chamber 2, a circulation pipe 11 is fixedly connected to the right side of the drying chamber 2, and a flow diffuser 12 is fixedly connected to the inner top wall of the drying chamber 2.

[0021] One end of the circulation pipe 11, away from the right side of the drying chamber 2, extends to the upper surface of the drying chamber 2 and is connected to the interior of the diffuser shroud 12;

[0022] The fan 5 can draw in outside air through the air inlet frame 6, and the filter screen 7 can block large particles of impurities and dust in the air to ensure that they do not enter the interior and contaminate the cake. The electric heating wire 8 can heat the air and then enter the drying chamber 2 through the fan 5 and blow it towards the collector hood 10. The hot air enters the diffuser hood 12 through the circulation pipe 11, so that the cake can be circulated with hot air in multiple directions, thereby improving the drying effect of the cake.

[0023] The uniform assembly includes a rotating shaft 13, with a transverse bevel gear 14 fixedly connected to the surface of the rotating shaft 13. A servo motor 15 is fixedly connected to the upper surface of the drying chamber 2, and a connecting shaft 16 is fixedly connected to the output end of the servo motor 15. A vertical bevel gear 17 is fixedly connected to the bottom end of the connecting shaft 16, and the vertical bevel gear 17 meshes with the transverse bevel gear 14. A circular disk 18 is fixedly connected to the right end of the rotating shaft 13. A circular groove is formed on the side of the circular disk 18, and a breathable mesh 19 is fixedly connected to the inner wall of the circular groove. Several clamping mechanisms are fixedly connected to the right side of the disc 18. The clamping mechanism includes a lower positioning frame 20, which is fixedly connected to the right side of the disc 18. An upper positioning frame 22 is rotatably connected to the back of the lower positioning frame 20 through two hinges 21. Several extrusion rods 23 in different positions are fixedly connected to the inner walls of the lower positioning frame 20 and the upper positioning frame 22. A positioning magnet 24 and an iron block 25 are fixedly connected to the front of the lower positioning frame 20 and the upper positioning frame 22, respectively, and the positions of the positioning magnet 24 and the iron block 25 are corresponding.

[0024] The servo motor 15 can drive the vertical bevel gear 17 to rotate through the connecting shaft 16, which in turn drives the rotating shaft 13 to rotate through the horizontal bevel gear 14. The rotating shaft 13 then drives several clamping mechanisms to rotate at a constant speed through the circular disk 18. At this time, hot air passes through the breathable net 19 and comes into contact with the clamping mechanisms during the rotation. Since the contact area between the dough and the extrusion rod 23 is small, the contact area between the hot air and the dough is larger. Furthermore, the hot air is blown downward through the diffuser 12, which can dry the dough from multiple angles, thereby improving the drying uniformity and drying efficiency of the dough.

[0025] Working principle: First, open the sealing door 3 and activate each clamping mechanism. This separates the upper positioning frame 22 from the positioning magnet 24 via the iron block 25, allowing the upper positioning frame 22 to rotate around the hinge 21. Then, place the dough onto the extrusion rod 23 inside the lower positioning frame 20. Simultaneously, close the upper positioning frame 22, allowing the extrusion rod 23 inside the upper positioning frame 22 to cooperate with the extrusion rod 23 inside the lower positioning frame 20 to clamp the dough. After filling the interior of several clamping mechanisms, close the sealing door 3. Then, turn on the fan 5, electric heating wire 8, and servo motor 15. The fan 5 draws in outside air through the air inlet frame 6. The filter screen 7 filters out large particles of dust and impurities from the outside, preventing them from entering the air inlet frame 6. Air heated by electric heating wire 8 enters the air inlet frame 6 and then enters the drying chamber 2 through the connecting frame 9. The air is blown towards the collector hood 10 and then enters the diffuser hood 12 through the circulation pipe 11. The dough is dried from the side and vertical. The servo motor 15 drives the vertical bevel gear 17 to rotate through the connecting shaft 16, which in turn drives the rotating shaft 13 to rotate through the horizontal bevel gear 14. The rotating shaft 13 drives several clamping mechanisms to rotate through the circular disk 18, which facilitates the rotation of multiple clamping mechanisms to contact the hot air. The small contact area between the extrusion rod 23 and the dough maximizes the contact area between the hot air and the dough, greatly improving the drying uniformity and efficiency of the dough.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hot air circulating multi-layer uniform baking machine for flat breads comprising a processing table (1), characterized in that, The upper surface of the processing platform (1) is fixedly connected with a drying box (2), the front of the drying box (2) is rotatably connected with a sealing door (3), the left side of the drying box (2) is fixedly connected with a drying assembly, the left inner wall of the drying box (2) is rotatably connected with an even assembly, the drying assembly comprises a fixed frame (4), the inner wall of the fixed frame (4) is fixedly connected with a fan (5), the lower surface of the fixed frame (4) is fixedly connected with an air inlet frame (6), the inside of the air inlet frame (6) is provided with an air inlet cavity, the inner wall of the air inlet cavity is fixedly connected with a filter screen (7) and an electric heating wire (8) respectively, the upper surface of the fixed frame (4) is fixedly connected with a connecting frame (9), the right inner wall of the drying box (2) is fixedly connected with a flow collector (10), the right side of the drying box (2) is fixedly connected with a circulating pipe (11), and the inner top wall of the drying box (2) is fixedly connected with a flow expander (12).

2. A hot air circulated multi-layered uniform baking machine for flat breads as claimed in claim 1 wherein, The end of the circulating pipe (11) away from the right side of the drying box (2) extends to the upper surface of the drying box (2) and is connected with the inside of the flow expander (12).

3. A hot air circulated multi-layered uniform baking machine for flat breads as claimed in claim 1 wherein, The even assembly comprises a rotating shaft (13), the surface of the rotating shaft (13) is fixedly connected with a transverse bevel gear (14), the upper surface of the drying box (2) is fixedly connected with a servo motor (15), the output end of the servo motor (15) is fixedly connected with a connecting shaft (16), the bottom end of the connecting shaft (16) is fixedly connected with a vertical bevel gear (17), and the vertical bevel gear (17) is engaged with the transverse bevel gear (14).

4. A hot air circulated multi-layered uniform baking machine for flat breads according to claim 3, characterized in that, The right end of the rotating shaft (13) is fixedly connected with a circular disc (18), the side of the circular disc (18) is provided with a circular groove, the inner wall of the circular groove is fixedly connected with a breathable net (19), and the right side of the circular disc (18) is fixedly connected with a plurality of clamping mechanisms.

5. A hot air circulated multi-layered uniform baking machine for flat breads as claimed in claim 4 wherein, The clamping mechanism comprises a lower positioning frame (20), the lower positioning frame (20) is fixedly connected with the right side of the circular disc (18), the back of the lower positioning frame (20) is rotatably connected with an upper positioning frame (22) through two hinges (21), and the inner walls of the lower positioning frame (20) and the upper positioning frame (22) are fixedly connected with a plurality of extrusion rods (23) which are different in position.

6. A hot air circulated multi-layered uniform baking machine for flat breads as claimed in claim 5 wherein, The front of the lower positioning frame (20) and the front of the upper positioning frame (22) are fixedly connected with a positioning magnet (24) and an iron block (25) respectively, and the positions of the positioning magnet (24) and the iron block (25) correspond to each other.