A tunnel-type food roasting apparatus and a food roasting method

Abstract

This invention discloses a tunnel-type food baking equipment and method, relating to the field of food processing equipment technology. The tunnel-type food baking equipment includes a baking chamber, a heating device, a conveying mechanism, and a circulating fan. A partition within the baking chamber divides it into an upper chamber and a lower chamber. The heating device is located in the upper chamber, and the conveying mechanism is located in the lower chamber. The air outlet of the circulating fan communicates with the upper chamber and faces the heating device, while the air inlet communicates with the lower chamber. The partition has air vents connecting the upper and lower chambers. The heating device is located in the airflow path between the air outlet and the air vents. The airflow from the circulating fan is heated by the heating device and then enters the lower chamber to bake the food. The airflow then returns to the circulating fan via the air inlet and is sent back to the upper chamber, allowing the hot air to circulate between the upper and lower chambers. This invention can recover and reuse the hot air after baking, reducing heat loss carried by the hot air, lowering the need for external heat supplementation during the heating process, and improving energy efficiency.

Description

Technical Field

[0001] This invention relates to the field of food processing equipment technology, and in particular to a tunnel-type food baking equipment and a food baking method. Background Technology

[0002] As food processing moves towards continuous and large-scale operations, tunnel-type food baking equipment is widely used for the batch baking of foods such as roast duck and roast meat because it allows food to continuously pass through the baking area via a conveyor. Existing tunnel-type food baking equipment typically includes heating and ventilation devices inside the baking chamber. Hot air generated by the heating is delivered to the area where the food is located via a fan, so that the food is heated by the hot air during the conveying process to complete continuous baking.

[0003] However, existing tunnel-type food baking equipment typically uses fans to directly blow heat from a heat source to heat the food. This heating method does not fully utilize heat energy, resulting in significant energy loss during the baking process and low energy efficiency. Therefore, improving the energy efficiency of tunnel-type food baking equipment is a technical problem that needs to be solved by existing technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a tunnel-type food baking equipment and a food baking method, which solves the technical problem of low energy utilization efficiency of existing tunnel-type food baking equipment.

[0005] To achieve the above objectives, the present invention provides a tunnel-type food baking equipment, including a baking chamber, a heating device, a conveying mechanism, and a circulating fan; the baking chamber is provided with a partition, which divides the baking chamber into an upper chamber located above the partition and a lower chamber located below the partition; the heating device is located in the upper chamber, and the conveying mechanism is located in the lower chamber and is used to convey food through the lower chamber; the circulating fan has an air outlet and an air inlet, the air outlet is connected to the upper chamber and faces the heating device, and the air inlet is connected to the lower chamber; the partition is provided with an air vent connecting the upper chamber and the lower chamber; the heating device is located on the airflow path between the air outlet and the air vent, so that the airflow from the air outlet is heated by the heating device, enters the lower chamber through the air vent, and returns to the circulating fan through the air vent.

[0006] Preferably, the conveying mechanism includes two conveying chains spaced apart and a plurality of conveying rods connected between the two conveying chains, wherein the plurality of conveying rods are equidistantly arranged along the conveying direction of the conveying chains.

[0007] Preferably, the lower cavity is provided with an air regulating mechanism, which includes a base plate, an air guide plate, a guide rail, and a plurality of hydraulic cylinders. The guide rail and the plurality of hydraulic cylinders are all disposed on the base plate. The air guide plate is rotatably disposed on the base plate. The plurality of hydraulic cylinders are used to jointly drive the air guide plate to rotate, so as to adjust the angle of the air guide plate relative to the base plate. The air guide plate is used to guide the airflow entering the lower cavity from the air inlet to flow through the food conveyed by the conveying mechanism and flow to the air suction port.

[0008] Preferably, the substrate is disposed at the bottom of the lower cavity, and the air regulating mechanism further includes a sliding member that slides with the guide rail and a support arm connected between the sliding member and the air guide plate. The plurality of hydraulic cylinders are used to drive the sliding member to move along the guide rail and drive the air guide plate to rotate through the support arm.

[0009] Preferably, the baking chamber further includes a feeding chamber disposed on the feeding side of the baking chamber and a feeding device corresponding to the feeding chamber. The feeding device includes a lifting power device, a pushing cylinder, a gripper cylinder, a fixing frame, and at least one hanging component. The hanging component is detachably supported by the fixing frame and used to hang food. The gripper cylinder is used to grip or release the fixing frame. The lifting power device is drivenly connected to the pushing cylinder and is used to drive the pushing cylinder, the gripper cylinder, and the fixing frame held by the gripper cylinder to move in the vertical direction. The pushing cylinder is drivenly connected to the gripper cylinder and is used to drive the gripper cylinder and the fixing frame held by the gripper cylinder to move in a direction toward or away from the feeding chamber.

[0010] Preferably, the feeding device further includes a mobile frame, the lifting power device is disposed on the mobile frame, and the bottom of the mobile frame is provided with multiple wheels.

[0011] Preferably, the fixing frame includes two support beams spaced apart, and the hanging component includes multiple round bars. The two ends of each round bar are detachably mounted on the two support beams. The top of each of the two support beams is provided with multiple limiting grooves, which are used to limit the position of the multiple round bars.

[0012] Preferably, each of the round bars is provided with at least two fixing hooks and at least one food hook. The at least two fixing hooks are fixedly disposed on the round bar and used to hang the conveying rod, and the food hooks are disposed on the round bar and used to hang food.

[0013] Preferably, the food hook includes a neck for holding the neck of poultry food and two wing parts located on both sides of the neck for holding the wings of poultry food, and both wing parts are elastic elements.

[0014] The present invention also provides a food baking method based on the above-mentioned tunnel-type food baking equipment. The food baking method includes: conveying food through the lower cavity via the conveying mechanism; blowing air into the upper cavity via the circulating fan, so that the airflow is heated by the heating device and then enters the lower cavity through the air outlet to bake the food; drawing the airflow in the lower cavity into the circulating fan through the air inlet, and sending the drawn airflow back into the upper cavity, so that the airflow circulates through the upper cavity and the lower cavity.

[0015] Compared to the aforementioned background technology, the tunnel-type food baking equipment provided by this invention has the following beneficial effects: In this invention, the airflow from the circulating fan first flows through the heating device for heating, then enters the lower chamber through the air inlet to bake the food conveyed by the conveying mechanism. After baking, the airflow can re-enter the circulating fan through the air inlet and be sent back into the upper chamber, thus forming a continuous hot air circulation path. Compared to methods where the baked hot air is directly discharged or cannot be fully reused, this invention can recover the baked hot air and reuse it for food baking, reducing the loss of heat carried by the hot air, reducing the need for external heat supplementation during the heating process, and facilitating the full utilization of the heat energy generated by the heating device, thereby improving the energy efficiency of the tunnel-type food baking equipment. The food baking method provided by this invention also possesses the above-mentioned beneficial effects. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the tunnel-type food baking equipment provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the baking chamber and conveying mechanism provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the baking chamber provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the feeding device provided in an embodiment of the present invention; Figure 5 This is a partial structural diagram of the circulating fan and baking chamber provided in an embodiment of the present invention; Figure 6 for Figure 2 Enlarged diagram of point A in the middle.

[0018] Explanation of reference numerals in the attached drawings: 1-Baking chamber; 101-Upper cavity; 102-Lower cavity; 103-Baffle; 104-Air vent; 2-Heating device; 3-Conveying mechanism; 301-Conveying chain; 302-Conveying rod; 303-Sprocket; 304-Drive motor; 4-Circulating fan; 401-Air outlet; 402-Air intake; 5-Air regulating mechanism; 501-Base plate; 502-Air guide plate; 503-Guide rail; 504-Hydraulic cylinder; 505-Sliding component; 5051-Slide rod; 5052-Connecting seat; 506-Support 6-Arm; 7-Feeding chamber; 8-Discharge chamber; 9-Feeding device; 101-Lifting power unit; 11-Pushing cylinder; 12-Gripper cylinder; 13-Gripper cylinder; 14-Fixed frame; 15-Support beam; 16-Hanging component; 17-Round bar; 18-Fixed hook; 19-Food hook; 20-Hanging neck; 21-Hanging fin; 22-Hanging fin; 33-Mobile frame; 44-Walking wheel; 55-Food container; 66-Handrail; 77-Exhaust assembly; 88-Exhaust pipe; 99-Fume hood. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1 , Figure 2 and Figure 3As shown, to achieve the above objectives, the present invention provides a tunnel-type food baking equipment, including a baking chamber 1, a heating device 2, a conveying mechanism 3, and a circulating fan 4; a partition 103 is provided inside the baking chamber 1, dividing the baking chamber 1 into an upper chamber 101 located above the partition 103 and a lower chamber 102 located below the partition 103; the heating device 2 is located in the upper chamber 101, and the conveying mechanism 3 is located in the lower chamber 102 and is used to convey food through the lower chamber 102; the circulating fan 4 has... Air outlet 401 and air inlet 402 are provided. Air outlet 401 is connected to the upper cavity 101 and faces the heating device 2. Air inlet 402 is connected to the lower cavity 102. The partition 103 is provided with an air outlet 104 that connects the upper cavity 101 and the lower cavity 102. The heating device 2 is located on the airflow path between air outlet 401 and air outlet 104, so that the airflow sent out by air outlet 401 is heated by the heating device 2 and enters the lower cavity 102 through air outlet 104, and returns to the circulating fan 4 through air inlet 402. Specifically, the entire tunnel-type food baking equipment is formed by combining multiple baking chambers 1 sequentially along the food conveying direction. A feeding chamber 6 is provided on the feeding side of each baking chamber 1, and a discharging chamber 7 is provided on the discharging side. Each baking chamber 1 may be equipped with a smoke exhaust assembly 9, located at both ends of the baking section composed of multiple baking chambers 1 or at the connection point of adjacent baking chambers 1. The smoke exhaust assembly 9 includes a smoke exhaust pipe 901 and an oil fume hood 902 to collect and exhaust the oil fumes generated during the baking process. The conveying mechanism 3 is driven by a drive motor 304, which drives the conveyor chain 301 through a sprocket 303 at its output end, allowing the food to continuously pass through one or more baking chambers 1. A partition 103 is horizontally arranged inside the baking chamber 1, dividing the baking space into an upper cavity 101 and a lower cavity 102. The upper cavity 101 serves as the airflow heating area, and the lower cavity 102 serves as the food baking area. In this embodiment, the heating device 2 uses a resistance wire heating element, and the food can be roast duck or roast meat. Figure 5As shown, the air outlet 401 of the circulating fan 4 faces the heating device 2 in the upper cavity 101, so that the airflow first passes through the heating device 2 to obtain heat, and then enters the lower cavity 102 through the air outlet 104 on the partition 103; the air inlet 402 is connected to the lower cavity 102 and is located at the position where the airflow after passing through the food can converge, so that the hot air after completing one baking heat exchange is re-inhaled into the circulating fan 4. By setting a partition 103 in the baking chamber 1 to divide the baking chamber 1 into an upper chamber 101 and a lower chamber 102, the heating device 2 is set in the upper chamber 101, and the conveying mechanism 3 for conveying food is set in the lower chamber 102. At the same time, the air outlet 401 of the circulating fan 4 is connected to the upper chamber 101, and the air inlet 402 is connected to the lower chamber 102. The upper chamber 101 and the lower chamber 102 are connected by the air outlet 104 on the partition 103. The airflow sent by the circulating fan 4 can first flow through the heating device 2 for heating, and then enter the lower chamber 102 through the air outlet 104 to bake the food conveyed by the conveying mechanism 3. After baking, the airflow can re-enter the circulating fan 4 through the air inlet 402 and be sent back to the upper chamber 101, thereby forming a continuous hot air circulation path. Compared to methods where hot air after baking is directly discharged or cannot be fully reused, this method can recover the hot air after baking and reuse it for food baking, reducing the loss of heat carried by the hot air, reducing the need for external heat supplementation during the heating process, and making full use of the heat energy generated by the heating device 2, thereby improving the energy utilization efficiency of the tunnel-type food baking equipment.

[0022] like Figure 2 As shown, in some embodiments of the present invention, the conveying mechanism 3 includes two conveying chains 301 spaced apart and a plurality of conveying rods 302 connected between the two conveying chains 301. The plurality of conveying rods 302 are equidistantly arranged along the conveying direction of the conveying chains 301. Specifically, the two conveying chains 301 are respectively arranged on both sides of the lower cavity 102 and extend along the length direction of the baking chamber 1. The plurality of conveying rods 302 are laterally connected between the two conveying chains 301, so that each conveying rod 302 can move synchronously with the two conveying chains 301. The conveying chains 301 mesh with the sprockets 303, and the drive motor 304 drives the sprockets 303 to rotate, thereby driving the conveying rods 302 to continuously pass through the lower cavity 102. Food can be directly or with the aid of the hanging components 805 suspended on the conveying rods 302, so that the food remains suspended during the conveying process, which is conducive to the flow of hot air around the food. The plurality of conveying rods 302 can continuously carry multiple batches of food, improving the conveying stability and batch processing capacity of the continuous baking process.

[0023] like Figure 2 and Figure 6As shown, in some embodiments of the present invention, a wind regulating mechanism 5 is provided in the lower cavity 102. The wind regulating mechanism 5 includes a base plate 501, a guide plate 502, a guide rail 503, and multiple hydraulic cylinders 504. The guide rail 503 and the multiple hydraulic cylinders 504 are all disposed on the base plate 501. The guide plate 502 is rotatably disposed on the base plate 501. The multiple hydraulic cylinders 504 are used to jointly drive the guide plate 502 to rotate, so as to adjust the angle of the guide plate 502 relative to the base plate 501. The guide plate 502 is used to guide the airflow entering the lower cavity 102 from the air outlet 104 to flow through the food conveyed by the conveying mechanism 3 and to the suction port 402. Specifically, the wind regulating mechanism 5 is arranged as a whole in the lower cavity 102 and close to the bottom area of ​​the lower cavity 102. The base plate 501 is used to support the guide rail 503, the multiple hydraulic cylinders 504, and the guide plate 502, so that the wind regulating mechanism 5 forms an assembly that can be installed and maintained as a whole. Each baking chamber 1 is equipped with multiple air adjustment mechanisms 5, and multiple air guide plates 502 are arranged equidistantly along the conveying direction. Hydraulic cylinders 504 employ linear telescopic output, and multiple hydraulic cylinders 504 jointly drive sliding parts 505 to move along guide rails 503, and through support arms 506, drive the air guide plates 502 to change their tilt angle. It should be noted that the air adjustment mechanism 5 is driven by hydraulic cylinders 504 to adapt to the working environment of the lower chamber 102 and maintain operational reliability. The air guide plates 502 can change the flow rate and direction of the airflow within the lower chamber 102, guiding the airflow entering the lower chamber 102 from the air inlet 104 to the vicinity of the food being conveyed by the conveying mechanism 3, and then continuing to guide the airflow towards the suction inlet 402. Using multiple hydraulic cylinders 504 to drive sliding parts 505 to move along guide rails 503, and through support arms 506 to drive the air guide plates 502 to rotate, maintains reliable adjustment within the working environment of the lower chamber 102, while also allowing the angle adjustment of the air guide plates 502 to be performed without manual intervention inside the equipment, improving the convenience of air adjustment.

[0024] like Figure 6As shown, further, in this embodiment, the substrate 501 is disposed at the bottom of the lower cavity 102, and the air regulating mechanism 5 also includes a sliding member 505 that slidably engages with the guide rail 503 and a support arm 506 connected between the sliding member 505 and the air guide plate 502. Multiple hydraulic cylinders 504 are used to drive the sliding member 505 to move along the guide rail 503 and to drive the air guide plate 502 to rotate via the support arm 506. Specifically, the sliding member 505 includes a sliding rod 5051 that slidably engages with the guide rail 503 and a connecting seat 5052 connected to the sliding rod 5051. The connecting seat 5052 is connected to the output end of the hydraulic cylinder 504. The support arm 506 is disposed between the sliding member 505 and the air guide plate 502; one end of the support arm 506 is rotatably connected to the sliding member 505, and the other end is rotatably connected to the air guide plate 502, so that the linear displacement of the sliding member 505 can be converted into an angular change of the air guide plate 502 around its rotational connection position. When multiple hydraulic cylinders 504 extend or retract, they jointly drive the sliding member 505 to move along the guide rail 503. The guide rail 503 restricts the direction of movement of the sliding member 505. The support arm 506 pushes or pulls the guide vane 502 to rotate as the position of the sliding member 505 changes. By converting the translational motion of the hydraulic cylinders 504 into the rotational motion of the guide vane 502, the guide rail 503 can be used to constrain the linear motion, reducing the possibility of swaying or jamming during the adjustment of the guide vane 502, and maintaining a relatively stable airflow guiding state for the guide vane 502 at different angular positions.

[0025] like Figure 4As shown, in some embodiments of the present invention, a feeding chamber 6 is provided on the feeding side of the baking chamber 1, and a feeding device 8 is provided corresponding to the feeding chamber 6. The feeding device 8 includes a lifting power device 801, a pushing cylinder 802, a gripper cylinder 803, a fixing frame 804, and at least one hanging component 805. The hanging component 805 is detachably supported on the fixing frame 804 and used to hang food. The gripper cylinder 803 is used to grip or release the fixing frame 804. The lifting power device 801 is drivenly connected to the pushing cylinder 802 and is used to drive the pushing cylinder 802, the gripper cylinder 803, and the fixing frame 804 held by the gripper cylinder 803 to move in the vertical direction. The pushing cylinder 802 is drivenly connected to the gripper cylinder 803 and is used to drive the gripper cylinder 803 and the fixing frame 804 held by the gripper cylinder 803 to move in the direction toward or away from the feeding chamber 6. Specifically, the feeding device 8 is arranged outside the feeding chamber 6, the lifting power device 801 is used to provide vertical movement, the pushing cylinder 802 is used to provide movement toward or away from the feeding chamber 6, and the gripper cylinder 803 is arranged on the output side of the pushing cylinder 802 and is used to clamp the fixing frame 804, so that the fixing frame 804 and the hanging part 805 carried thereon can be adjusted in position in two directions. The lifting power unit 801 provides vertical lifting drive force. After the gripper cylinder 803 clamps the fixed frame 804, the lifting power unit 801 first raises or lowers the fixed frame 804 to a height suitable for the feeding chamber 6 and the conveying rod 302. Then, the push cylinder 802 pushes the fixed frame 804 into the feeding chamber 6. After the fixed hook 8052 is engaged with the conveying rod 302, the gripper cylinder 803 maintains its grip on the fixed frame 804. The lifting power unit 801 drives the fixed frame 804 to move vertically, or the push cylinder 802 drives the fixed frame 804 to move away from the feeding chamber 6, so that the hanging part 805 separates from the fixed frame 804 and is transferred to the conveying mechanism 3. The handover between the hanging part 805 and the conveying mechanism 3 is completed by lifting, pushing, and clamping actions, eliminating the need for a fixed industrial robot and facilitating group operation of multiple hanging parts 805.

[0026] In this embodiment, the feeding device 8 also includes a movable frame 806, with a lifting power device 801 mounted on the movable frame 806. Multiple wheels 807 are provided at the bottom of the movable frame 806. Specifically, the movable frame 806 forms the mobile support base for the feeding device 8. The lifting power device 801, the pushing cylinder 802, and the gripper cylinder 803 can all move as a whole with the movable frame 806. The wheels 807 are either omnidirectional or directional wheels, and multiple wheels 807 are distributed at the bottom of the movable frame 806 to allow workers to push the feeding device 8 around the equipment. The movable frame 806 may also be equipped with handrails 809 for workers to hold onto and food containers 808 for temporarily placing food to be baked, allowing workers to complete food preparation, hanging, and transfer outside the equipment. The feeding device 8 can be moved to the corresponding position in the feeding chamber 6 or the discharging chamber 7 as needed, reducing dependence on a fixed installation location and facilitating the sharing of the feeding device 8 between different baking chambers 1.

[0027] In some embodiments of the present invention, the fixing frame 804 includes two spaced-apart support beams 8041, and the hanging component 805 includes a plurality of round bars 8051. The two ends of each round bar 8051 are detachably mounted on the two support beams 8041. The tops of both support beams 8041 are provided with a plurality of limiting grooves, which are used to limit the position of the round bars 8051. Specifically, the two support beams 8041 are arranged parallel and spaced apart, together forming the bearing portion of the fixing frame 804. The plurality of round bars 8051 are arranged across the two support beams 8041, with the two ends of each round bar resting on the top of the corresponding support beam 8041. The limiting grooves are spaced apart along the extending direction of the support beams 8041 and correspond to the end positions of the round bars 8051. The limiting grooves are configured as arc-shaped grooves or V-shaped grooves to limit the rolling or shifting of the round bars 8051 along the extending direction of the support beams 8041. The round bars 8051 are only mounted on the support beam 8041 without being fixedly connected to it. After the fixing hook 8052 is engaged with the conveying rod 302, the fixing frame 804 moves relative to the round bars 8051 and separates from them, allowing multiple round bars 8051 to be transferred as a whole to the conveying mechanism 3. Multiple round bars 8051 carry multiple food items side by side. Compared to attaching each food item to the conveying rod 302 one by one, this reduces repetitive attachment operations and improves batch feeding efficiency.

[0028] In some embodiments of the present invention, each round rod 8051 is provided with at least two fixing hooks 8052 and at least one food hook 8053. The at least two fixing hooks 8052 are fixedly disposed on the round rod 8051 and used to hook the conveyor rod 302. The food hook 8053 is disposed on the round rod 8051 and used to suspend food. Specifically, at least two fixing hooks 8052 are spaced apart along the length of the round rod 8051 on its upper side and are fixed to the round rod 8051 by welding or threaded connection, so that the same round rod 8051 can be hooked to the conveyor rod 302 at at least two positions, improving the stability of the round rod 8051 after suspension. The food hook 8053 is disposed on the lower side of the round rod 8051 and can be sleeved or connected to the round rod 8051. The food hook 8053 is used to carry a single food item, and multiple food hooks 8053 can be spaced apart along the round rod 8051. The fixed hook 8052 and the food hook 8053 are located on the upper and lower sides of the round bar 8051, respectively, so that the round bar 8051 can serve as an intermediate support between the conveying rod 302 and the food. After the fixed hook 8052 is attached, it moves directly with the conveying rod 302, thereby driving multiple foods into the baking chamber 1 at one time.

[0029] It should be noted that, in this embodiment, the food hook 8053 includes a neck 80531 for holding the neck of poultry food and two wing portions 80532 located on both sides of the neck 80531 for holding the wings of poultry food. Both wing portions 80532 are elastic elements. Specifically, the food hook 8053 is mainly used to hang poultry food, which can be duck or goose. The neck 80531 forms a curved holding area that can hold the neck of the poultry food. The two wing portions 80532 are located on both sides of the neck 80531 and cooperate with the wings on both sides of the poultry food to form multi-point support for the neck and wings. The wing portions 80532 can be made of spring steel wire or elastic stainless steel wire, so that the wing portions 80532 can elastically deform during hanging and maintain elastic constraint on the wings, which helps to reduce the large swing of the food under the action of conveying and hot air, and at the same time keeps the food in a more stable hanging posture.

[0030] This invention also provides a food baking method based on the tunnel-type food baking equipment described in the above embodiments. Food is conveyed through the lower chamber 102 via a conveying mechanism 3; air is supplied to the upper chamber 101 via a circulating fan 4, and the airflow, heated by the heating device 2, enters the lower chamber 102 through the air outlet 104 to bake the food; the airflow in the lower chamber 102 is drawn into the circulating fan 4 through the air intake 402, and then sent back into the upper chamber 101, so that the airflow circulates between the upper chamber 101 and the lower chamber 102. Specifically, before the equipment operates, the heating device 2 and the circulating fan 4 are started to form a heated circulating airflow in the upper chamber 101. Subsequently, the conveying mechanism 3 continuously carries the food through the lower chamber 102. The circulating fan 4 supplies air to the upper chamber 101 through the air outlet 401. After passing through the heating device 2, the airflow enters the lower chamber 102 through the air outlet 104 to bake the food. The airflow after passing through the food is drawn into the circulating fan 4 through the air intake 402 and sent back to the upper chamber 101 for reheating and circulation. When the equipment is equipped with the air conditioning mechanism 5, the angle of the air guide plate 502 is adjusted according to the location of the food and the required airflow state, so that the hot air flows to the air intake 402 after passing through the food. When the equipment is equipped with the feeding device 8, multiple food items are first suspended on the food hooks 8053 of multiple round bars 8051, and the round bars 8051 are placed on the two support beams 8041 of the fixed frame 804. Then, the moving frame 806 is pushed to the corresponding position in the feeding chamber 6. After the gripper cylinder 803 clamps the fixed frame 804, the lifting power device 801 adjusts the height of the fixed frame 804, and the push cylinder 802 pushes the fixed frame 804 into the feeding chamber 6. By continuing to adjust the vertical position and the pushing position, the fixed hooks 8052 on the round bars 8051 are hooked onto the conveying rod 302. Then, the fixed frame 804 is separated from the round bars 8051, and the round bars 8051 enter the baking chamber 1 with the conveying rod 302. After baking, the food is moved to the discharge chamber 7 by the conveyor mechanism 3, where it is unloaded. This allows for continuous circulation of food conveying, hot air heating, and hot air recovery, and enables the simultaneous feeding of multiple food items when the feeding device 8 is configured.

[0031] In summary, the present invention forms a hot air circulation baking path through the upper cavity 101, lower cavity 102, heating device 2, circulating fan 4 and conveying mechanism 3 in the baking chamber 1, and can be combined with the air regulating mechanism 5 to adjust the airflow direction and velocity in the lower cavity 102; at the same time, through the cooperation of movable feeding device 8, fixed frame 804, round bar 8051, fixed hook 8052 and food hook 8053, multiple food items can be grouped and transported, so that the tunnel-type food baking equipment can take into account the needs of continuous baking, hot air circulation, airflow regulation and batch feeding.

[0032] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0033] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A tunnel-type food baking device, characterized in that, It includes a baking chamber (1), a heating device (2), a conveying mechanism (3), and a circulating fan (4); The baking chamber (1) is provided with a partition (103), which divides the baking chamber (1) into an upper cavity (101) above the partition (103) and a lower cavity (102) below the partition (103). The heating device (2) is provided in the upper cavity (101), and the conveying mechanism (3) is provided in the lower cavity (102) and is used to convey food through the lower cavity (102). The circulating fan (4) has an air outlet (401) and an air inlet (402). The air outlet (401) is connected to the upper cavity (101) and faces the heating device (2). The air inlet (402) is connected to the lower cavity (102). The partition (103) is provided with an air outlet (104) connecting the upper cavity (101) and the lower cavity (102). The heating device (2) is located on the airflow path between the air outlet (401) and the air outlet (104) so ​​that the airflow sent out by the air outlet (401) is heated by the heating device (2) and enters the lower cavity (102) through the air outlet (104), and returns to the circulating fan (4) through the air inlet (402).

2. The tunnel-type food baking equipment according to claim 1, characterized in that, The conveying mechanism (3) includes two conveying chains (301) spaced apart and a plurality of conveying rods (302) connected between the two conveying chains (301). The plurality of conveying rods (302) are equidistantly arranged along the conveying direction of the conveying chains (301).

3. The tunnel-type food baking equipment according to claim 1, characterized in that, The lower cavity (102) is provided with an air regulating mechanism (5). The air regulating mechanism (5) includes a base plate (501), an air guide plate (502), a guide rail (503), and a plurality of hydraulic cylinders (504). The guide rail (503) and the plurality of hydraulic cylinders (504) are all disposed on the base plate (501). The air guide plate (502) is rotatably disposed on the base plate (501). The plurality of hydraulic cylinders (504) are used to drive the air guide plate (502) to rotate together to adjust the angle of the air guide plate (502) relative to the base plate (501). The air guide plate (502) is used to guide the airflow entering the lower cavity (102) from the air inlet (104) to flow through the food conveyed by the conveying mechanism (3) and flow to the air intake (402).

4. The tunnel-type food baking equipment according to claim 3, characterized in that, The base plate (501) is disposed at the bottom of the lower cavity (102). The air regulating mechanism (5) further includes a sliding member (505) that slides with the guide rail (503) and a support arm (506) connected between the sliding member (505) and the air guide plate (502). A plurality of hydraulic cylinders (504) are used to drive the sliding member (505) to move along the guide rail (503) and drive the air guide plate (502) to rotate through the support arm (506).

5. The tunnel-type food baking equipment according to claim 2, characterized in that, It also includes a feeding chamber (6) disposed on the feeding side of the baking chamber (1) and a feeding device (8) corresponding to the feeding chamber (6). The feeding device (8) includes a lifting power device (801), a pushing cylinder (802), a gripper cylinder (803), a fixing frame (804), and at least one hanging component (805). The hanging component (805) is detachably supported by the fixing frame (804) and used to hang food. The gripper cylinder (803) is used to clamp or release the fixing frame (804). The power device (801) is driven to the push cylinder (802) and is used to drive the push cylinder (802), the gripper cylinder (803) and the fixed frame (804) held by the gripper cylinder (803) to move in the vertical direction; the push cylinder (802) is driven to the gripper cylinder (803) and is used to drive the gripper cylinder (803) and the fixed frame (804) held by the gripper cylinder (803) to move in the direction toward or away from the feed chamber (6).

6. The tunnel-type food baking equipment according to claim 5, characterized in that, The feeding device (8) also includes a mobile frame (806), the lifting power device (801) is disposed on the mobile frame (806), and the bottom of the mobile frame (806) is provided with multiple wheels (807).

7. The tunnel-type food baking equipment according to claim 5, characterized in that, The fixing frame (804) includes two support beams (8041) spaced apart, and the hanging component (805) includes multiple round bars (8051). The two ends of each round bar (8051) can be detachably mounted on the two support beams (8041). The top of each of the two support beams (8041) is provided with multiple limiting grooves, which are used to limit the position of the multiple round bars (8051).

8. The tunnel-type food baking equipment according to claim 7, characterized in that, Each of the round bars (8051) is provided with at least two fixing hooks (8052) and at least one food hook (8053). The at least two fixing hooks (8052) are fixedly disposed on the round bars (8051) and used to hang the conveying rod (302). The food hook (8053) is disposed on the round bars (8051) and used to hang food.

9. The tunnel-type food baking equipment according to claim 8, characterized in that, The food hook (8053) includes a neck (80531) for holding the neck of poultry food and two wing parts (80532) located on both sides of the neck (80531) for holding the wings of poultry food. Both wing parts (80532) are elastic elements.

10. A method for baking food, characterized in that, The food baking method, implemented based on any one of claims 1 to 9, comprises: Food is transported through the lower cavity (102) via the conveying mechanism (3). The circulating fan (4) sends air to the upper chamber (101), and the airflow is heated by the heating device (2) and then enters the lower chamber (102) through the air outlet (104) to bake the food. The airflow in the lower chamber (102) is drawn into the circulating fan (4) through the air inlet (402), and the drawn airflow is sent back into the upper chamber (101) so that the airflow circulates through the upper chamber (101) and the lower chamber (102).

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