阅读说明：本技术 一种发饼生产设备及其生产工艺 (Hair cake production equipment and production process thereof ) 是由 卢汪洋 吴君升 于 2019-12-03 设计创作，主要内容包括：一种发饼生产设备,包括筛选设备、和面设备、发酵设备、成型设备、烘烤设备、冷却设备和包装设备；其中,烘烤设备包括烘烤箱、固定座、第一电机、第一传动轴、第一转动件、连接盘、固定杆、转动盘、支撑板、升降装置、第二电机、第二传动轴、第二转动件、抽风机和回风管；本发明还提出了一种发饼生产工艺。本发明能够同时对多框发饼进行均匀烘烤,烘烤效果好,烘烤效率高,并且方便取出和放入发饼,省时省力,有助于节省人力和降低生产成本,并且还能够对热湿气进行利用,节能环保。(A leaven cake production device comprises a screening device, a dough kneading device, a fermentation device, a forming device, a baking device, a cooling device and a packaging device; the baking equipment comprises a baking box, a fixed seat, a first motor, a first transmission shaft, a first rotating part, a connecting disc, a fixed rod, a rotating disc, a supporting plate, a lifting device, a second motor, a second transmission shaft, a second rotating part, an exhaust fan and a return air pipe; the invention also provides a leavened cake production process. The multi-frame leavening cake baking machine can uniformly bake a plurality of frames of leavening cakes at the same time, has good baking effect and high baking efficiency, is convenient to take out and put in the leavening cakes, saves time and labor, is beneficial to saving manpower and reducing production cost, can also utilize hot and humid air, and is energy-saving and environment-friendly.)

1. A leavened pancake production device is characterized by comprising a screening device (1), a dough kneading device (2), a fermentation device (3), a forming device (4), a baking device (5), a cooling device (6) and a packaging device (7);

the baking equipment (5) comprises a baking box (8), a fixed seat (9), a first motor (11), a first transmission shaft (12), a first rotating piece (15), a connecting disc (16), a fixed rod (20), a rotating disc (23), a supporting plate (24), a lifting device (25), a second motor (26), a second transmission shaft (27), a second rotating piece (28), an exhaust fan (33) and an air return pipe (36);

the baking box (8) is arranged on the fixed seat (9), a sealing door (40) is arranged on the baking box (8), a baking lamp (42) is vertically arranged in the baking box, and a protective cover (10) is arranged at the top of the baking box; the first rotating members (15) are rotatably arranged in the baking box (8), the top ends of the first rotating members extend upwards into the protective cover (10), and the first rotating members (15) are in multiple groups and distributed in an annular array around the baking lamps (42); the first motor (11) is arranged on the protective cover (10), and the first transmission shaft (12) is arranged on the first motor (11) and extends into the protective cover (10) to be in transmission connection with the first rotating parts (15);

the supporting plate (24) is horizontally arranged in the baking box (8), and the lifting device (25) is arranged in the baking box (8) and connected with the supporting plate (24); the rotating disc (23) is rotatably arranged on the supporting plate (24), and the second rotating piece (28) is rotatably arranged on the supporting plate (24) and connected with the rotating disc (23); the bottom of the supporting plate (24) is also provided with a connecting box (43), and the second motor (26) is arranged on the connecting box (43); the bottom end of the second rotating part (28) extends into the connecting box (43), and the second transmission shaft (27) is arranged on the second motor (26) and extends into the connecting box (43) to be in transmission connection with the second rotating part (28);

the fixing rod (20) is vertically arranged, the peripheral surface of the fixing rod is provided with a plurality of transparent grid frames (21) for placing the hair cakes, the top of the fixing rod is horizontally provided with a first fixing disc (17), and the bottom of the fixing rod is provided with a second fixing disc (22); the connecting disc (16) is horizontally arranged on the first rotating piece (15), and a plurality of inserting rods (19) are vertically arranged at the bottom of the connecting disc (16); the top of the first fixed disc (17) is provided with a plurality of inserting cylinders (18) with upward openings, and the inserting rods (19) are inserted into the inserting cylinders (18); a plurality of annular slots (30) with upward openings are formed in the rotating disc (23), annular pieces (29) are correspondingly arranged at the bottom of the second fixed disc (22), and the annular pieces (29) are inserted into the annular slots (30); the number of the annular slots (30) is the same as that of the first rotating pieces (15) and corresponds to that of the first rotating pieces one by one;

a placing groove (38) is arranged in the fixed seat (9), and a dehumidifying device (37) is placed in the placing groove (38); the exhaust fan (33) is arranged on the fixed seat (9), an exhaust pipe (34) is arranged at the input side, and an air delivery pipe (35) is arranged at the output side; the air exhaust pipe (34) is connected with the dehumidifying device (37), and the air delivery pipe (35) is communicated with the baking box (8); the return air pipe (36) is connected with the dehumidifying device (37) and is communicated with the baking box (8).

2. Hair cake production equipment according to claim 1, characterized in that a pressure relief pipe (39) is arranged on the return air pipe (36), and a control valve is arranged on the pressure relief pipe (39).

3. Hair cake production equipment according to claim 1, characterized in that the bottom of the rotating disc (23) is provided with a limiting member (31), the supporting plate (24) is correspondingly provided with an annular guide groove (32), and the limiting member (31) is positioned in the annular guide groove (32) and is connected with the supporting plate (24) in a sliding manner.

4. A pancake production apparatus according to claim 1, wherein the first transmission shaft (12) is horizontally provided with a first gear (13), the first rotating member (15) is correspondingly provided with a second gear (14), and the first gear (13) is in meshing transmission connection with each second gear (14).

5. The haired pancake production equipment according to claim 1, wherein the second transmission shaft (27) is provided with bevel gears, the second rotating member (28) is correspondingly provided with bevel gears, and the bevel gears are in meshing transmission connection.

6. The leavened pancake production equipment and the production process thereof according to claim 1, characterized by further comprising a temperature sensor, a humidity sensor and a control system;

temperature sensor and humidity transducer are located toast incasement (8), and temperature sensor and humidity transducer are connected in the control system communication.

7. A hairmuffin production device according to claim 1, characterized in that it further comprises rollers (41); the rollers (41) are four groups and are arranged at the bottom of the fixed seat (9).

8. Hair cake production equipment according to claim 1, characterized in that the bottom of the ring-shaped element (29) is provided with rolling balls in a rolling manner, and the rolling balls are connected with the rotating disc (23) in a rolling manner.

9. The leavened pancake production equipment as recited in any one of claims 1 to 8 further provides its production process, characterized by comprising the steps of:

s1, selecting raw materials, and weighing the raw materials with corresponding weight according to the preparation formula of the hair cake;

s2, screening, namely screening the weighed raw materials by using screening equipment (1) to remove the raw materials which do not meet the specification and size;

s3, dough kneading treatment, namely preparing dough by using dough kneading equipment (2);

s4, performing fermentation treatment, namely taking out the dough, and fermenting the dough by using a fermentation device (3) for 2-3 h;

s5, molding, namely, using molding equipment (4) to make the fermented raw materials into a required shape;

s6, baking, namely baking the formed leavened cakes by using baking equipment (5) for 40-50 min;

s7, cooling, taking out the baked leavened cakes, and rapidly cooling the leavened cakes by using cooling equipment (6);

and S8, finally, packaging the leavened pancakes by using a packaging device (7) to complete the preparation.

10. The process for producing a muffin according to claim 9, characterized in that the raw materials of the muffin include refined flour, white sugar, milk powder, liqueur, soda ash and soda.

Technical Field

The invention relates to the technical field of leavened pancake production, in particular to leavened pancake production equipment and a leavened pancake production process.

Background

The leavened pancakes are an instant food in Hunan-style pastry varieties, are popular with the citizens for the world as a novel popular food with unique flavor, and promote the advance of modern fermentation type biscuits; the hair cake is oblate, the surface of the hair cake is egg-yellow, the bottom surface of the hair cake is brownish yellow, the hair cake is soft when being eaten, the milk flavor is strong, the hair cake is sweet and delicious, and the aftertaste is endless;

the existing cake production equipment has low production efficiency, needs to consume a large amount of manpower, wastes time and labor, has poor baking effect and baking efficiency of the cake and needs to be improved.

Disclosure of Invention

Objects of the invention

In order to solve the technical problems in the background art, the invention provides the steamed sponge cake production equipment and the production process thereof, which can uniformly bake multiple frames of steamed sponge cakes simultaneously, have good baking effect and high baking efficiency, are convenient to take out and put in the steamed sponge cakes, are time-saving and labor-saving, are beneficial to saving manpower and reducing production cost, can utilize hot and humid air, and are energy-saving and environment-friendly.

(II) technical scheme

The invention provides a leavened pancake production device which comprises a screening device, a dough kneading device, a fermentation device, a forming device, a baking device, a cooling device and a packaging device;

the baking equipment comprises a baking box, a fixed seat, a first motor, a first transmission shaft, a first rotating part, a connecting disc, a fixed rod, a rotating disc, a supporting plate, a lifting device, a second motor, a second transmission shaft, a second rotating part, an exhaust fan and a return air pipe;

the baking box is arranged on the fixed seat, a sealing door is arranged on the baking box, a baking lamp is vertically arranged in the baking box, and a protective cover is arranged at the top of the baking box; the first rotating members are rotatably arranged in the baking box, the top ends of the first rotating members extend upwards into the protective cover, and the first rotating members are in multiple groups and distributed in an annular array around the baking lamps; the first motor is arranged on the protective cover, and the first transmission shaft is arranged on the first motor and extends into the protective cover to be in transmission connection with the first rotating pieces;

the supporting plate is horizontally arranged in the baking box, and the lifting device is arranged in the baking box and connected with the supporting plate; the rotating disc is rotatably arranged on the supporting plate, and the second rotating part is rotatably arranged on the supporting plate and connected with the rotating disc; the bottom of the supporting plate is also provided with a connecting box, and the second motor is arranged on the connecting box; the bottom end of the second rotating part extends into the connecting box, and the second transmission shaft is arranged on the second motor and extends into the connecting box to be in transmission connection with the second rotating part;

the fixing rods are vertically arranged, the peripheral surface of each fixing rod is provided with a plurality of transparent grid frames for placing the hair cakes, the top of each fixing rod is horizontally provided with a first fixing disk, and the bottom of each fixing disk is provided with a second fixing disk; the connecting disc is horizontally arranged on the first rotating piece, and a plurality of inserting rods are vertically arranged at the bottom of the connecting disc; the top of the first fixed disk is provided with a plurality of insertion cylinders with upward openings, and the insertion rods are inserted into the insertion cylinders; a plurality of annular slots with upward openings are formed in the rotating disc, annular pieces are correspondingly arranged at the bottom of the second fixing disc and inserted into the annular slots; the number of the annular slots is the same as that of the first rotating pieces and corresponds to that of the first rotating pieces one by one;

a placing groove is arranged in the fixed seat, and a dehumidifying device is placed in the placing groove; the exhaust fan is arranged on the fixed seat, an exhaust pipe is arranged at the input side, and a gas pipe is arranged at the output side; the air exhaust pipe is connected with the dehumidifying device, and the air delivery pipe is communicated with the baking box; the return air pipe is connected with the dehumidifying device and communicated with the baking box.

Preferably, the air return pipe is provided with a pressure relief pipe, and the pressure relief pipe is provided with a control valve.

Preferably, the bottom of the rotating disc is provided with a limiting part, the supporting plate is correspondingly provided with an annular guide groove, and the limiting part is positioned in the annular guide groove and is in sliding connection with the supporting plate.

Preferably, the first transmission shaft is horizontally provided with a first gear, the first rotating member is correspondingly provided with a second gear, and the first gear is in meshing transmission connection with each second gear.

Preferably, the second transmission shaft is provided with a bevel gear, the second rotating part is correspondingly provided with a bevel gear, and the two bevel gears are in meshing transmission connection.

Preferably, the system also comprises a temperature sensor, a humidity sensor and a control system;

temperature sensor and humidity transducer are located toasts the incasement, and temperature sensor and humidity transducer are connected in the control system communication.

Preferably, the device further comprises a roller; the number of the rollers is four groups and is arranged at the bottom of the fixed seat.

Preferably, the bottom of the annular part is provided with a rolling ball in a rolling way, and the rolling ball is connected with the rotating disc in a rolling way.

The invention also provides a leavened cake production process, which comprises the following steps:

s1, selecting raw materials, and weighing the raw materials with corresponding weight according to the preparation formula of the hair cake;

s2, screening, namely screening the weighed raw materials by using screening equipment, and removing the raw materials which do not meet the specification and size;

s3, dough kneading treatment, namely preparing dough by using dough kneading equipment;

s4, performing fermentation treatment, namely taking out the dough, and fermenting the dough by using fermentation equipment for 2-3 h;

s5, molding, namely, making the fermented raw materials into a required shape by using molding equipment;

s6, baking, namely baking the formed leavened cakes by baking equipment for 40-50 min;

s7, cooling, taking out the baked leavened cakes, and rapidly cooling the leavened cakes by using cooling equipment;

and S8, finally, packaging the leavened pancakes by using packaging equipment, and finishing the manufacture.

Preferably, the raw materials of the leavened pancake comprise refined flour, white sugar, milk powder, liqueur, soda ash and soda.

The technical scheme of the invention has the following beneficial technical effects:

the fixing rods are distributed around the baking lamp in an annular array, a plurality of transparent grid frames are arranged on the fixing rods, the baking cakes are placed in the transparent grid frames, the baking lamp is used for baking the baking cakes, the baking cakes in multiple frames can be baked at the same time, and the operation efficiency is high; the first motor enables the first rotating parts to rotate through the first transmission shaft, so that the first fixing rods automatically rotate along with the first rotating parts, the transparent grid frame rotates along with the first rotating parts, cakes at all positions in the transparent grid frame can be uniformly baked, and the phenomenon that the cakes at the positions are scorched due to the fact that the baking lamps continuously bake the positions is effectively avoided;

the hot moisture generated in the baking oven rises upwards and enters the dehumidifying device through the air return pipe, and the dehumidifying device dehumidifies the hot moisture; the exhaust fan feeds the dehumidified hot air into the baking box again, so that the circulation of the hot air is realized, and the effects of energy conservation and environmental protection are achieved;

after baking is finished, the supporting plate is lowered through the lifting device until the inserted rod is separated from the inserted cylinder; holding the fixing rod and applying upward force to the fixing rod to separate the annular piece from the annular slot and take out the annular piece; the second motor makes the rolling disc carry out the horizontal direction through the second transmission shaft and rotates, can make the dead lever that is located the inboard turn to the outside, and the convenience is taken out inboard dead lever, and is comparatively convenient to sending out the cake and putting into and taking out, labour saving and time saving, and operating efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of a leavened pancake production device and a production process thereof.

FIG. 2 is a schematic structural diagram of a leavened pancake production device and a baking device in the production process thereof.

FIG. 3 is a front view of a device for producing leavened pancakes and a baking device in the production process.

Fig. 4 is a partially enlarged view of a portion a in fig. 2.

Fig. 5 is a schematic connection diagram (top view) of the first transmission shaft and the first rotating member in the cake production equipment and the production process thereof provided by the invention.

FIG. 6 is a top view of a rotary plate in the apparatus and process for producing leavened pancakes according to the present invention.

Reference numerals: 1. screening equipment; 2. dough kneading equipment; 3. a fermentation device; 4. a molding device; 5. baking equipment; 6. a cooling device; 7. a packaging device; 8. a baking oven; 9. a fixed seat; 10. a protective cover; 11. a first motor; 12. a first drive shaft; 13. a first gear; 14. a second gear; 15. a first rotating member; 16. a connecting disc; 17. a first fixed disk; 18. inserting a cylinder; 19. inserting a rod; 20. fixing the rod; 21. a transparent grid frame; 22. a second fixed disk; 23. rotating the disc; 24. a support plate; 25. a lifting device; 26. a second motor; 27. a second drive shaft; 28. a second rotating member; 29. an annular member; 30. an annular slot; 31. a limiting member; 32. an annular guide groove; 33. an exhaust fan; 34. an air exhaust pipe; 35. a gas delivery pipe; 36. a return air duct; 37. a dehumidifying device; 38. a placement groove; 39. a pressure relief pipe; 40. a sealing door; 41. a roller; 42. a baking light; 43. and a connecting box.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-6, the apparatus for producing leavened pancakes provided by the present invention comprises a screening apparatus 1, a dough kneading apparatus 2, a fermentation apparatus 3, a forming apparatus 4, a baking apparatus 5, a cooling apparatus 6 and a packaging apparatus 7;

the baking equipment 5 comprises a baking box 8, a fixed seat 9, a first motor 11, a first transmission shaft 12, a first rotating part 15, a connecting disc 16, a fixed rod 20, a rotating disc 23, a supporting plate 24, a lifting device 25, a second motor 26, a second transmission shaft 27, a second rotating part 28, an exhaust fan 33 and an air return pipe 36;

the baking box 8 is arranged on the fixed seat 9, a sealing door 40 is arranged on the baking box 8, a baking lamp 42 is vertically arranged in the baking box, and a protective cover 10 is arranged at the top of the baking box; the first rotating members 15 are rotatably arranged in the baking oven 8, the top ends of the first rotating members extend upwards into the protective cover 10, and the first rotating members 15 are distributed in groups and in an annular array around the baking lamps 42; the first motor 11 is arranged on the protective cover 10, and the first transmission shaft 12 is arranged on the first motor 11 and extends into the protective cover 10 to be in transmission connection with each first rotating piece 15;

the supporting plate 24 is horizontally arranged in the baking box 8, and the lifting device 25 is arranged in the baking box 8 and connected with the supporting plate 24; the rotating disc 23 is rotatably arranged on the supporting plate 24, and the second rotating piece 28 is rotatably arranged on the supporting plate 24 and connected with the rotating disc 23; the bottom of the supporting plate 24 is also provided with a connecting box 43, and the second motor 26 is arranged on the connecting box 43; the bottom end of the second rotating part 28 extends into the connecting box 43, and the second transmission shaft 27 is arranged on the second motor 26 and extends into the connecting box 43 to be connected with the second rotating part 28 in a transmission manner;

the fixed rod 20 is vertically arranged, the peripheral surface of the fixed rod is provided with a plurality of transparent grid frames 21 for placing the hair cakes, the top of the fixed rod is horizontally provided with a first fixed disk 17, and the bottom of the fixed rod is provided with a second fixed disk 22; the connecting disc 16 is horizontally arranged on the first rotating piece 15, and a plurality of inserting rods 19 are vertically arranged at the bottom of the connecting disc 16; the top of the first fixed disk 17 is provided with a plurality of insertion cylinders 18 with upward openings, and the insertion rods 19 are inserted into the insertion cylinders 18; a plurality of annular slots 30 with upward openings are formed in the rotating disc 23, annular pieces 29 are correspondingly arranged at the bottom of the second fixing disc 22, and the annular pieces 29 are inserted into the annular slots 30; the number of the annular slots 30 is the same as that of the first rotating members 15 and corresponds to one another;

a placing groove 38 is arranged in the fixed seat 9, and a dehumidifying device 37 is placed in the placing groove 38; the exhaust fan 33 is arranged on the fixed seat 9, an exhaust pipe 34 is arranged at the input side, and an air delivery pipe 35 is arranged at the output side; the air exhaust pipe 34 is connected with a dehumidifying device 37, and the air pipe 35 is communicated with the baking box 8; the return duct 36 is connected to the dehumidifying apparatus 37 and communicates with the oven chamber 8.

In an alternative embodiment, the return air duct 36 is provided with a pressure relief duct 39, and the pressure relief duct 39 is provided with a control valve.

In an alternative embodiment, the bottom of the rotating disc 23 is provided with a limiting member 31, the supporting plate 24 is correspondingly provided with an annular guide groove 32, and the limiting member 31 is located in the annular guide groove 32 and is slidably connected with the supporting plate 24. In operation, the limiting member 31 slides along the annular guide groove 32, so as to play a role in guiding and facilitate the stability of the rotating process of the rotating disc 23.

In an alternative embodiment, a first gear 13 is horizontally disposed on the first transmission shaft 12, a second gear 14 is correspondingly disposed on the first rotating member 15, and the first gear 13 is in meshing transmission connection with each second gear 14. In operation, the first transmission shaft 12 causes the first gear 13 to perform circular rotation in the horizontal direction, and the first gear 13 is in meshing transmission connection with the second gears 14 to cause the first rotor 15 to perform circular rotation in the horizontal direction.

In an alternative embodiment, the second transmission shaft 27 is provided with a bevel gear, and the second rotating member 28 is correspondingly provided with a bevel gear, and the two bevel gears are in meshed transmission connection. In operation, the second transmission shaft 27 rotates the second rotating member 28 in the horizontal direction through two bevel gears.

In an optional embodiment, the system further comprises a temperature sensor, a humidity sensor and a control system; temperature sensor and humidity transducer are located and toast 8 insides, and temperature sensor and humidity transducer are connected in the control system communication. In operation, temperature sensor and humidity transducer detect toast the temperature and humidity in the case 8 and will detect data transmission to control system, and control system control relevant equipment carries out corresponding regulation.

In an alternative embodiment, a roller 41 is further included; the figure of gyro wheel 41 is four groups and sets up in the bottom of fixing base 9, conveniently removes toasting case 8, and the flexibility is good, the transport of being convenient for.

In an alternative embodiment, the bottom of the annular member 29 is provided with rolling balls which are in rolling contact with the rotating disc 23. In operation, when the annular part 29 rotates, the balls roll, so that the friction resistance of the annular part 29 in the rotating process can be effectively reduced, and the rotating process is smoother.

The invention also provides a leavened cake production process, which comprises the following steps:

s1, selecting raw materials, and weighing the raw materials with corresponding weight according to the preparation formula of the hair cake;

s2, screening, namely screening the weighed raw materials by using a screening device 1, and removing the raw materials which do not meet the specification and size;

s3, dough kneading treatment, namely preparing dough by using dough kneading equipment 2;

s4, performing fermentation treatment, namely taking out the dough, and fermenting the dough by using a fermentation device 3 for 2-3 h;

s5, molding, namely, using molding equipment 4 to make the fermented raw materials into a required shape;

s6, baking, namely baking the formed leavened pancakes by using baking equipment 5 for 40-50 min;

s7, cooling, taking out the baked leavened cakes, and rapidly cooling the leavened cakes by using a cooling device 6;

and S8, finally, packaging the leavened pancakes by using a packaging device 7, and finishing the preparation.

In an alternative embodiment, the raw materials of the muffin include refined flour, white sugar, milk powder, liqueur, soda ash and soda.

When the bread maker is used, raw materials with corresponding weight are weighed according to a preparation formula of a bread, then the weighed raw materials are sieved by using a sieving device 1, dough is prepared by using a dough kneading device 2, and then the dough is fermented by using a fermentation device 3; after fermentation, making the fermented raw materials into a required shape by using a forming device 4, and baking the formed leavened cakes by using a baking device 5; after baking is finished, the haired cakes are rapidly cooled by using the cooling equipment 6 and are packaged by the packaging equipment 7, so that the haired cakes are manufactured, the manufacturing efficiency is high, manpower is saved, and the production cost is reduced;

when baking, the plurality of fixing rods 20 are distributed around the baking lamp 42 in an annular array, a plurality of transparent grid frames 21 are arranged on the fixing rods 20, the baking cakes are placed in the transparent grid frames 21, and the baking lamp 42 is used for baking the baking cakes; the first motor 11 rotates the first rotating members 15 through the first transmission shaft 12, so that the first fixing rods 20 rotate along with the first rotating members, the transparent grid frame 21 rotates along with the first rotating members, the cakes at all positions in the transparent grid frame 21 can be uniformly baked, and the cakes at the positions are effectively prevented from being scorched due to the fact that the baking lamp 42 continuously bakes the certain positions;

after baking is finished, the supporting plate 24 is lowered through the lifting device 25 until the inserted rod 19 is separated from the inserted cylinder 18; at this time, the fixing rod 20 is held and an upward force is applied to the fixing rod, so that the ring-shaped member 29 is separated from the ring-shaped slot 30 and is taken out; the second motor 26 enables the rotating disc 23 to rotate in the horizontal direction through the second transmission shaft 27, so that the fixed rod 20 positioned on the inner side can be rotated to the outer side, the fixed rod 20 on the inner side can be conveniently taken out, cake distributing, putting in and taking out are convenient, time and labor are saved, and the operation efficiency is high;

hot moisture generated in the baking oven 8 rises upwards and enters the dehumidifying device 37 through the air return pipe 36, and the dehumidifying device 37 dehumidifies the hot moisture; the exhaust fan 33 feeds the dehumidified hot air into the baking box 8 again, so that hot air circulation is realized, and the effects of energy conservation and environmental protection are achieved.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.