A baking device for puffed food processing
By introducing components such as fixed plates, guide plates, baffles, electric telescopic rods, and heat insulation plates into the baking device for puffed food processing, the material channel is dynamically adjusted, solving the problems of heat loss and uneven heating, and achieving more efficient baking and automatic cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGZHOU FUYI FOOD CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-07-24
AI Technical Summary
The material inlet and outlet of existing baking equipment used in puffed food processing are always open, resulting in a large loss of heat, which affects the baking effect and wastes energy.
It adopts components such as fixed plate, guide plate, baffle, electric telescopic rod, adjustment plate, and heat insulation plate to dynamically adjust the gap and opening size, allowing only a single layer of material to pass through, reducing heat loss and improving thermal efficiency, and automatically cleaning residual material through scraper.
It effectively solves the problem of uneven heating caused by material stacking, reduces heat loss, improves baking efficiency and thermal efficiency, and simplifies the cleaning process.
Smart Images

Figure CN224539282U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food processing technology, and in particular to a baking device for processing puffed food. Background Technology
[0002] Puffed foods are made primarily from grains, potatoes, beans, and other raw materials with low moisture content. After being pressurized and heated, the raw materials expand in volume and their internal structure changes, resulting in a type of snack food with a significantly increased volume, a certain degree of puffing, a crisp texture, and a fragrant aroma. During the processing of puffed foods, baking equipment is required to bake the raw materials.
[0003] A search revealed that Chinese Patent Publication No. CN222548566U discloses a baking device for processing puffed food. The device includes an adjustable uniform distribution mechanism that can organize the puffed food accumulated on the conveyor belt, ensuring that it is evenly distributed on the conveyor belt. This prevents the puffed food from piling up on the conveyor belt and causing the subsequent baking oven to fail to bake the puffed food thoroughly, thus improving the overall baking effect of the puffed food.
[0004] In actual use, the openings on the left and right sides of the baking oven for material entry are always fully open to ensure continuous feeding. When the baking device is operating to bake the material, some of the heat generated will be directly dissipated to the outside through the openings. The larger the opening, the faster the heat loss, which not only wastes energy but also affects the baking effect on the material. Therefore, a baking device for puffed food processing is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a baking device for processing puffed food, which aims to improve the problem that the material inlet and outlet positions of the baking device in the prior art are always open in order to continuously feed the material, resulting in a large amount of heat loss during internal baking.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a baking device for processing puffed food, comprising a processing shell, wherein an inlet and an outlet are respectively provided on the left and right sides of the processing shell, a conveyor belt is provided inside the processing shell, a controller is fixedly connected to the front surface of the processing shell, a hot air blower is fixedly connected to the top surface inside the processing shell, a fan hood is fixedly connected to the bottom output end of the hot air blower, a fixing plate is fixedly connected to the inner surface of the left side of the processing shell, two guide plates are fixedly connected to the front and rear sides of the bottom of the fixing plate in a mirror structure, a baffle is fixedly connected to the left end of the guide plate, an installation plate is fixedly connected to the inside of the processing shell, an electric telescopic rod is fixedly connected to the bottom surface of the installation plate, an adjustment plate is fixedly connected to the bottom end of the electric telescopic rod, and a heat insulation plate is fixedly connected to the right side of the adjustment plate through a connecting assembly.
[0007] As a further description of the above technical solution:
[0008] The right end of the guide plate is inclined toward the center of the conveyor belt, and the front and rear surfaces of the adjustment plate are respectively in contact with the outer walls of the two guide plates.
[0009] As a further description of the above technical solution:
[0010] The right side surface of the insulation plate is in contact with the rear inner wall surface of the processed shell.
[0011] As a further description of the above technical solution:
[0012] The connecting assembly includes crossbars and reinforcing bars. There are several crossbars, which are fixedly connected to the right side surface of the adjusting plate. The reinforcing bars are fixedly connected between adjacent crossbars.
[0013] As a further description of the above technical solution:
[0014] The right end of the crossbar is fixedly connected to the left side surface of the insulation board.
[0015] As a further description of the above technical solution:
[0016] A vertical rod is fixedly connected to the upper surface of the insulation plate, and a slider is fixedly connected to the upper end of the vertical rod. A groove is formed on the inner right wall surface of the processing housing.
[0017] As a further description of the above technical solution:
[0018] The slider is slidably connected to the inside of the groove.
[0019] As a further description of the above technical solution:
[0020] A scraper is fixedly connected to the right side of the processing housing, and side plates are fixedly connected to both the front and rear sides of the scraper. The left end of the scraper is in contact with the right end of the conveyor belt.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, through the cooperation of the fixed plate, guide plate, baffle, mounting plate, electric telescopic rod, adjusting plate, connecting components and heat insulation plate, the gap can be dynamically adjusted according to the material thickness, allowing only a single layer of material to pass through. This fundamentally solves the problem of uneven heating caused by material stacking in traditional equipment, and can dynamically reduce the opening area on the left and right sides of the processing shell, reduce heat loss, and make the heat more concentrated on the material surface, further improving thermal efficiency.
[0023] 2. In this utility model, the combination of the vertical rod, slider and slide groove can guide and limit the movement of the insulation plate, improve the stability of the insulation plate, and avoid deviation that would affect the shielding effect on the discharge port of the processing shell. The combination of the scraper and side plate can automatically scrape off the residue after the material passes through the discharge port, and guide the finished product to the storage container, avoiding the tediousness of manual cleaning. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of a baking device for processing puffed food according to the present invention.
[0025] Figure 2 This is a schematic cross-sectional view of the front part of a baking device for processing puffed food according to the present invention;
[0026] Figure 3 This utility model proposes a baking device for processing puffed food. Figure 2 A partial schematic diagram of point A;
[0027] Figure 4 This is a schematic diagram of the adjusting plate and the heat insulation plate of a baking device for processing puffed food according to the present invention.
[0028] Figure 5 This is a schematic diagram of the adjusting plate of a baking device for processing puffed food according to the present invention.
[0029] Figure 6 This is a schematic diagram of the right side of a baking device for processing puffed food according to the present invention.
[0030] Legend:
[0031] 1. Machining shell; 2. Conveyor belt; 3. Controller; 4. Hot air blower; 5. Air cover; 6. Fixing plate; 7. Guide plate; 8. Baffle; 9. Mounting plate; 10. Electric telescopic rod; 11. Adjusting plate; 12. Connecting assembly; 121. Crossbar; 122. Reinforcing rod; 13. Insulation plate; 14. Vertical rod; 15. Sliding block; 16. Slide groove; 17. Scraper; 18. Side plate. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figures 1-2 This utility model provides an embodiment of a baking device for processing puffed food, comprising a processing shell 1. The processing shell 1 has an inlet and an outlet on its left and right sides, respectively. A conveyor belt 2 is installed inside the processing shell 1. When material is placed above the conveyor belt 2, starting the conveyor belt 2 moves the material to the right, through the inlet, into the processing shell 1. After baking, the material is removed from the outlet by the conveyor belt 2. A controller 3 is fixedly connected to the front surface of the processing shell 1. The controller 3 and the electrical components in the device are connected... Electrical connections allow for control of the electrical components installed in the device. A hot air blower 4 is fixedly connected to the top surface inside the processing housing 1. The hot air blower 4 is a 3kW centrifugal fan with an adjustable outlet temperature range of 80-200℃ and a wind speed controlled by a frequency converter at 2-5m / s to meet the dehydration requirements of different puffed foods. A fan hood 5 is fixedly connected to the bottom output end of the hot air blower 4. When the hot air blower 4 is started, it blows hot air downwards, which can heat and dry the materials that move below the conveyor belt 2. The fan hood 5 can guide the hot air blown out by the hot air blower 4.
[0034] An infrared sensor (ITR8402 infrared phototransistor) is installed above the feed inlet (not shown directly in the diagram). This sensor can emit and receive infrared light. When material is placed on conveyor belt 2 and passes under the sensor, the material will block some of the infrared light. The sensor transmits the signal to controller 3 based on the change in the intensity of the received infrared light. Controller 3 has an algorithm program written based on the characteristics of this sensor model. It can accurately calculate the accumulation thickness of the material based on the received signal. Then, controller 3 sends a control command to electric telescopic rod 10 according to the preset correspondence between different material thicknesses and the height of adjustment plate 11, adjusting the extension length of electric telescopic rod 10, thereby accurately adjusting the height of adjustment plate 11 to ensure that the bottom surface of adjustment plate 11 maintains a suitable gap with the surface of conveyor belt 2, meeting the processing requirements of materials of different thicknesses.
[0035] Reference Figures 4-5 A fixing plate 6 is fixedly connected to the inner wall surface of the left side of the processing housing 1. The bottom surface of the fixing plate 6 is at the same level as the upper surface of the feed inlet. Two guide plates 7 are fixedly connected to the front and back sides of the bottom surface of the fixing plate 6 in a mirror structure. The right end of the guide plate 7 is inclined towards the center of the conveyor belt 2. The guide plate 7 can guide the movement of the material moving to the right on the conveyor belt 2, so that the material can move towards the center of the conveyor belt 2 along the inclined surface of the guide plate 7. A baffle 8 is fixedly connected to the left end of the guide plate 7. The bottom surfaces of both the baffle 8 and the guide plate 7 are close to the upper surface of the conveyor belt 2, but not in contact with the upper surface of the conveyor belt 2. An installation plate 9 is fixedly connected inside the processing housing 1. An electric telescopic rod 10 is fixedly connected to the bottom surface of the installation plate 9. The electric telescopic rod 10 adopts the HT series high temperature resistant electric push rod (nominal ambient temperature -20℃~). The electric telescopic rod 10 (120℃) is equipped with a high-temperature resistant motor and fluororubber seals, making it suitable for use inside baking equipment. The bottom end of the electric telescopic rod 10 is fixedly connected to an adjusting plate 11. The front and rear surfaces of the adjusting plate 11 are respectively in contact with the outer walls of the two guide plates 7. When the electric telescopic rod 10 is started, it can drive the adjusting plate 11 to move up and down in a straight line. When the adjusting plate 11 moves up and down, the distance between its bottom surface and the upper surface of the conveyor belt 2 can be adjusted according to the thickness of the material (the gap H between the bottom surface of the adjusting plate 11 and the conveyor belt 2 is set according to the material type: H = 1.2 ± 0.2 mm for potato chips and H = 2.5 ± 0.3 mm for rice cakes). When the material moves to the right through the guide plate 7 and reaches the bottom of the adjusting plate 11, the adjusting plate 11 can block the accumulated material, allowing only a single layer of material to pass through, thus avoiding the accumulation of material and affecting the baking efficiency.
[0036] A heat insulation plate 13 is fixedly connected to the right side of the adjusting plate 11 via a connecting assembly 12. The heat insulation plate 13 adopts a double-layer stainless steel sandwich structure, with ceramic fiber cotton (thermal conductivity ≤0.04W / m·K) filled in the middle, and a thickness of 20mm. The right side surface of the heat insulation plate 13 is in contact with the rear inner wall surface of the processing shell 1. When the adjusting plate 11 moves up and down, the heat insulation plate 13 can be driven to move synchronously through the connecting assembly 12. When the baking device stops working temporarily after baking a batch of materials, the electric telescopic rod 10 can be activated to drive the adjusting plate 11 and the heat insulation plate 13 to move down, blocking the inlet and outlet of the processing shell 1, thereby reducing the size of the opening. At the same time, when the adjusting plate 11 adjusts its height according to the material thickness, it can also minimize the size of the opening on the side of the processing shell 1, thereby reducing the heat dissipation channel and improving the baking efficiency of the material. Comparative tests show that after the heat insulation plate 13 is activated, the internal temperature drop rate of the processing shell 1 in the shutdown state decreases from 15℃ / min to 5℃ / min.
[0037] The connecting assembly 12 includes crossbars 121 and reinforcing bars 122. There are several crossbars 121, which are fixedly connected to the right side surface of the adjusting plate 11. The right end of the crossbars 121 is fixedly connected to the left side surface of the insulation plate 13. The reinforcing bars 122 are fixedly connected between adjacent crossbars 121. When the adjusting plate 11 is moved and adjusted, the insulation plate 13 can be moved synchronously through the crossbars 121. The reinforcing bars 122 can fix the adjacent crossbars 121, thereby further improving the connection strength.
[0038] Reference Figure 3 and Figure 6 A vertical rod 14 is fixedly connected to the upper surface of the insulation plate 13, and a slider 15 is fixedly connected to the upper end of the vertical rod 14. When the insulation plate 13 moves, the slider 15 can be driven to move synchronously through the vertical rod 14. A groove 16 is provided on the inner surface of the right side of the processing housing 1. The slider 15 is slidably connected to the inside of the groove 16. The groove 16 can guide and limit the movement of the slider 15, so that the slider 15 can only move in a straight line in the up and down direction. This can further limit the movement of the insulation plate 13, so that the insulation plate 13 can always remain in contact with the right side surface of the processing housing 1. The scraper 17 is fixedly connected to the right side of the processing housing 1. The scraper 17 is inclined to the lower right. Side plates 18 are fixedly connected to both the front and rear sides of the scraper 17. The left end of the scraper 17 is in contact with the right end of the conveyor belt 2. When the material moves to the right with the conveyor belt 2 and passes through the discharge port, it can fall onto the scraper 17 and then fall down along the inclined surface of the scraper 17 into the pre-placed storage container. The side plates 18 prevent the material from falling from the front and rear sides of the scraper 17. When material adheres to the conveyor belt 2 during the baking process, the scraper 17 can scrape it off.
[0039] Working principle: When the conveyor belt 2 is started, the electric telescopic rod 10 adjusts the height of the adjusting plate 11 according to the thickness of the material to be processed (such as potato chips, rice cakes, etc.) so that its bottom surface maintains a suitable gap with the surface of the conveyor belt 2. The hot air blower 4 is started, and hot air is blown evenly onto the material on the conveyor belt 2 through the air hood 5. The guiding effect of the air hood 5 makes the hot air concentrated on the surface of the material, improving the thermal efficiency. Then the material is placed on the conveyor belt 2 from the left feed port and moves to the right with the conveyor belt 2. When the material passes under the fixed plate 6, the guide plates 7 on both sides gradually guide the material to the center area of the conveyor belt 2 to avoid accumulation at the edges. When the material continues to move to the right under the adjusting plate 11, the accumulated material is intercepted, allowing only a single layer of material to pass through, ensuring the uniformity of subsequent baking. The material passes through the hot air area at a uniform speed with the conveyor belt 2 and is continuously heated and dried to complete the baking process. The baked finished product continues to move to the right with the conveyor belt 2 and reaches the scraper 17 through the discharge port on the right side. The scraper 17 is set at an angle to guide the material to slide into the collection container. At the same time, the scraper 17 is in contact with the conveyor belt 2 to automatically scrape off residual material and prevent adhesion. The side plate 18 prevents material leakage and ensures collection efficiency.
[0040] When batch production ends or the machine is temporarily stopped, the electric telescopic rod 10 drives the adjusting plate 11 and the heat insulation plate 13 to move down synchronously. The heat insulation plate 13 fits against the inner wall of the processing shell 1, blocking the feed inlet and the discharge outlet to reduce heat loss.
[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., 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 baking apparatus for processing puffed food, comprising a processing shell (1), characterized in that: The processing housing (1) has an inlet and an outlet on its left and right sides, respectively. A conveyor belt (2) is installed inside the processing housing (1). A controller (3) is fixedly connected to the front surface of the processing housing (1). A hot air blower (4) is fixedly connected to the top surface inside the processing housing (1). A fan hood (5) is fixedly connected to the bottom output end of the hot air blower (4). A fixing plate (6) is fixedly connected to the inner wall surface on the left side of the processing housing (1). Two guide plates (7) are fixedly connected to the front and back sides of the bottom of the fixing plate (6) in a mirror structure. A baffle (8) is fixedly connected to the left end of the guide plate (7). An installation plate (9) is fixedly connected inside the processing housing (1). An electric telescopic rod (10) is fixedly connected to the bottom surface of the installation plate (9). An adjustment plate (11) is fixedly connected to the bottom end of the electric telescopic rod (10). An insulation plate (13) is fixedly connected to the right side of the adjustment plate (11) through a connecting assembly (12).
2. The baking apparatus for processing puffed food according to claim 1, characterized in that: The right end of the guide plate (7) is inclined toward the center of the conveyor belt (2), and the front and rear surfaces of the adjustment plate (11) are respectively in contact with the outer walls of the two guide plates (7).
3. The baking apparatus for processing puffed food according to claim 1, characterized in that: The right side surface of the insulation plate (13) is in contact with the rear inner wall surface of the processing shell (1).
4. The baking apparatus for processing puffed food according to claim 1, characterized in that: The connecting assembly (12) includes a crossbar (121) and a reinforcing bar (122). There are several crossbars (121), which are fixedly connected to the right side surface of the adjusting plate (11). The reinforcing bar (122) is fixedly connected between adjacent crossbars (121).
5. A baking apparatus for processing puffed food according to claim 4, characterized in that: The right end of the crossbar (121) is fixedly connected to the left side surface of the insulation plate (13).
6. The baking apparatus for processing puffed food according to claim 1, characterized in that: A vertical rod (14) is fixedly connected to the upper surface of the insulation plate (13), and a slider (15) is fixedly connected to the upper end of the vertical rod (14). A groove (16) is opened on the inner wall surface of the right side of the processing housing (1).
7. A baking apparatus for processing puffed food according to claim 6, characterized in that: The slider (15) is internally slidably connected to the groove (16).
8. A baking apparatus for processing puffed food according to claim 1, characterized in that: A scraper (17) is fixedly connected to the right side of the processing housing (1), and side plates (18) are fixedly connected to both the front and rear sides of the scraper (17). The left end of the scraper (17) is in contact with the right end of the conveyor belt (2).