Baking device

Abstract

The utility model belongs to the technical field of drying devices, and provides a baking device which comprises a box. The partition plate is connected to the inner wall of the box body and divides the space in the box body into a ventilation cavity and a drying cavity, and a plurality of through holes communicating with the ventilation cavity and the drying cavity are formed in the partition plate; the infrared heater is arranged in the drying cavity and extends in the first direction; one end of the circulating pipeline is communicated with the ventilation cavity, the other end of the circulating pipeline is communicated with the drying cavity, and the circulating pipeline is used for inputting gas into the ventilation cavity and discharging the gas from the drying cavity; the drying oven aims at solving the technical problem that in the prior art, overall heat distribution of the drying oven is not uniform.

Description

Technical Field

[0001] The present application belongs to the technical field of drying devices, and specifically relates to a baking device. Background Art

[0002] The heat source of the existing oven is generally a high-power quartz tube or a heating tube. The heat emitted by the heat source is gradually transferred to the surroundings and finally to the entire inner cavity of the oven. This heat transfer method causes the temperature near the heat source in the oven to be higher, and the temperature far away from the heat source in the oven to be lower. The temperature at different positions in the oven is different, and the heat distribution is uneven. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a baking device to solve the technical problem of uneven overall heat distribution in the oven existing in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted in the embodiment of the present application is: to provide a baking device, including: a box body; a partition, the partition is connected to the inner wall of the box body and divides the space in the box body into a ventilation chamber and a drying chamber, and the partition is provided with a plurality of through holes connecting the ventilation chamber and the drying chamber; an infrared heater is arranged in the drying chamber; a circulation pipe, one end of the circulation pipe is connected to the ventilation chamber, and the other end of the circulation pipe is connected to the drying chamber, and the circulation pipe is used to input gas into the ventilation chamber and discharge gas from the drying chamber.

[0005] In some embodiments, the partition is provided with a plurality of grooves extending along the first direction, the grooves are provided in the drying chamber, the infrared heater includes a plurality of heating tubes extending along the first direction, the heating tubes are provided in the grooves; the grooves are provided with a plurality of through holes spaced apart around the first direction.

[0006] In some embodiments, the through holes are arranged in multiple rows, each row of the through holes are distributed along the first direction, the distance between two adjacent through holes in the same row is 25-35 mm, and the distance between two adjacent rows of through holes is 24-32 mm; the diameter of the through holes is 2.8-3.6 mm.

[0007] In some embodiments, the cavity wall of the drying cavity is a reflective plate, and the reflective plate is used to reflect infrared rays;

[0008] Alternatively, a reflective layer is provided on the cavity wall of the drying cavity, and the reflective layer is used to reflect infrared rays.

[0009] In some embodiments, the cavity wall of the drying cavity includes a first reflective surface and at least one second reflective surface, the first reflective surface is arranged opposite to the partition, the second reflective surface is located between the first reflective surface and the partition, and the angle between the second reflective surface and the first reflective surface is an obtuse angle.

[0010] In some embodiments, one end of the circulation duct connected to the ventilation cavity is located at one end of the infrared heater along the first direction.

[0011] In some embodiments, a first valve is disposed at one end of the circulation pipe connected to the drying chamber; and / or,

[0012] The circulation pipeline is provided with a fan, and the fan is used to blow the gas in the circulation pipeline toward the ventilation cavity.

[0013] In some embodiments, the baking device also includes a second valve and an exhaust fan, one end of the second valve is connected to the drying chamber, and the other end of the second valve is connected to the exhaust fan, the exhaust fan is located outside the box, and the exhaust fan is used to extract the gas in the box.

[0014] In some embodiments, the baking device also includes a temperature sensor and a controller, the temperature sensor is arranged in the drying chamber, and the controller is connected to the temperature sensor and the infrared heater; the controller is used to control the operation of the infrared heater according to the temperature sensed by the temperature sensor.

[0015] In some embodiments, ceramic fiber felt, aluminum silicate wool or a heat insulation board is provided on the outer wall of the box.

[0016] The beneficial effects of the baking device provided by the present application are as follows: the present application sets a ventilation chamber and a drying chamber, and sets an infrared heater in the drying chamber. The infrared heater can emit infrared rays to the product, and directly heat the product at different positions through infrared rays. The distance between the product and the infrared heater has little restriction on the heating effect of the product, so that the products at different positions are evenly heated. The infrared heater also heats the gas in the drying chamber at the same time. The present application inputs the gas in the drying chamber into the ventilation chamber through a circulation pipe, and evenly disperses the gas into the drying chamber through multiple through holes, so that the heat of the gas is evenly distributed in the drying chamber; the infrared heater is combined with the circulating gas to make the heat distribution in the drying chamber more even. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0018] Figure 1 Schematic diagram of the internal structure of the baking device provided in the embodiment of the present application Figure 1 ;

[0019] Figure 2 Schematic diagram of the internal structure of the baking device provided in the embodiment of the present application Figure 2 ;

[0020] Figure 3 A schematic diagram of the connection between the box and the exhaust duct provided in the embodiment of the present application;

[0021] Figure 4 Schematic diagram of the internal structure of the baking device provided in the embodiment of the present application Figure 3 ;

[0022] Figure 5 for Figure 4 A is a partial enlarged view of the

[0023] Among them, the reference numerals in the figure are:

[0024] 100. Baking device;

[0025] 11. Box body; 111. Ventilation cavity; 1111. Air inlet; 112. Drying cavity; 1121. Air outlet; 1122. Waste outlet; 1123. First reflection surface; 1124. Second reflection surface;

[0026] 12. partition; 121. through hole; 122. groove;

[0027] 13. Infrared heater; 131. Heating tube

[0028] 14. Circulation pipeline; 141. Fan;

[0029] 15. First valve;

[0030] 16. Second valve;

[0031] 17. Exhaust duct;

[0032] 18. Exhaust fan;

[0033] 19. Temperature sensor;

[0034] 200. Conveyor belt. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0036] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0037] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0039] The present application embodiment provides a baking device 100, such as Figure 1 , Figure 4 As shown, the baking device 100 includes a box body 11 , a partition 12 , an infrared heater 13 and a circulation pipe 14 .

[0040] The partition 12 is connected to the inner wall of the box body 11 and divides the space in the box body 11 into a ventilation chamber 111 and a drying chamber 112. Figure 5 As shown, the partition 12 is provided with a plurality of through holes 121 connecting the ventilation chamber 111 and the drying chamber 112; Figure 1 , Figure 4 As shown, the infrared heater 13 is arranged in the drying chamber 112 and extends along the first direction, which is the X direction in the figure; one end of the circulation pipe 14 is connected to the ventilation chamber 111, and the other end of the circulation pipe 14 is connected to the drying chamber 112. The circulation pipe 14 is used to input gas into the ventilation chamber 111 and discharge gas from the drying chamber 112.

[0041] The box 11 is used to isolate the external environment, reduce heat loss in the box 11, and keep the product in a stable heating environment.

[0042] The partition 12 is located in the box body 11, and the partition 12 and a part of the box body 11 form a ventilation chamber 111, and the partition 12 and another part of the box body 11 form a drying chamber 112. The drying chamber 112 is used to heat the product, and the ventilation chamber 111 is used to receive the gas in the drying chamber 112 and redistribute the gas in the drying chamber 112 through the through hole 121; optionally, a plurality of through holes 121 are evenly distributed on the partition 12, and the hot gas is evenly guided into the drying chamber 112, so that the heat distribution in the drying chamber 112 is more uniform.

[0043] Optionally, a discharge port is provided on the drying chamber 112, and the discharge port is located on the box body 11. When in use, the product is put into the drying chamber 112 from the discharge port for drying, and the dried product can also be taken out through the discharge port.

[0044] The infrared heater 13 heats the product by emitting infrared rays to the product; optionally, the infrared heater 13 is a medium-wave infrared heater, and the infrared heater 13 is arranged at a position close to and opposite to the through hole 121. The gas in the ventilation cavity 111 flows out from the through hole 121 and reaches the infrared heater 13, so that the gas contacts a large amount of infrared rays and is quickly heated, thereby improving the heating efficiency, and the heated gas is distributed in the drying cavity 112 to evenly distribute the heat.

[0045] The circulation duct 14 connects the ventilation chamber 111 and the drying chamber 112. It is understood that the circulation duct 14 can be arranged inside the housing 11 or outside the housing 11. The end of the circulation duct 14 connected to the ventilation chamber 111 can be arranged inside the ventilation chamber 111, or an air inlet 1111 is provided on the ventilation chamber 111, and the circulation duct 14 is connected to the air inlet 1111 outside the ventilation chamber 111. Similarly, the end of the circulation duct 14 connected to the drying chamber 112 can be arranged inside the drying chamber 112, or, as Figure 1 , Figure 3 As shown, an air outlet 1121 is opened on the drying chamber 112, and the circulation duct 14 is connected to the air outlet 1121 outside the drying chamber 112; optionally, the circulation duct 14 passes through the opening on the drying chamber 112 from outside the box body 11 and is connected to the air inlet 1111 inside the drying chamber 112.

[0046] The beneficial effects of this embodiment are as follows: the infrared heater 13 is provided to emit infrared rays to the product, and the product at different positions is directly heated by infrared rays. The distance between the product and the infrared heater 13 has little restriction on the heating effect of the product, so that the product at different positions is evenly heated. The infrared heater 13 also heats the gas in the drying chamber 112 at the same time. In this embodiment, the gas in the drying chamber 112 is input into the ventilation chamber 111 through the circulation pipe 14, and the gas is evenly dispersed to the drying chamber 112 through multiple through holes 121, so that the heat of the gas is evenly distributed in the drying chamber 112; the infrared heater 13 is combined with the circulating gas to make the heat distribution in the drying chamber 112 more even, and the position far away from the infrared heater 13 can be quickly heated up, thereby improving the overall heating speed of the drying chamber 112.

[0047] In some embodiments, Figure 1 , Figure 4 , Figure 5 As shown, the partition 12 is provided with a plurality of grooves 122 extending along the first direction, and the grooves 122 are arranged in the drying chamber 112. The infrared heater 13 includes a plurality of heating tubes 131 extending along the first direction, and the heating tubes 131 are arranged in the grooves 122. The grooves 122 are provided with a plurality of through holes 121 spaced apart around the first direction.

[0048] It can be understood that the groove 122 can be formed by stamping and bending the partition 12 , or the groove 122 can be formed by cutting out the partition 12 .

[0049] Optionally, a heating tube 131 is disposed in each groove 122 .

[0050] The groove 122 is consistent with the length direction of the heating tube 131, and the cross-section of the groove 122 is perpendicular to the heating tube 131. It can be understood that multiple through holes 121 can be set toward the heating tube 131 from different positions through the same cross-section of the groove 122, which can increase the number of through holes 121 opposite to the heating tube 131; it can be understood that the partition 12 can also be provided with through holes 121 at other positions other than the groove 122.

[0051] The beneficial effects of this embodiment are as follows: the groove 122 can increase the area of ​​the partition 12 in the drying chamber 112, and can increase the number of through holes 121 on the partition 12, so that the gas with heat is more evenly distributed from the through holes 121 to the drying chamber 112. The through holes 121 on the groove 122 are arranged around the heating tube 131, so that the number of through holes 121 opposite to the heating tube 131 can be increased, more gas can be guided to the heating tube 131, so that more gas is in contact with a large amount of infrared rays, so that more gas is quickly heated, and the heating efficiency of the gas in the drying chamber 112 is improved.

[0052] In some embodiments, multiple rows of through holes 121 are provided, each row of through holes 121 is distributed along the first direction, the distance between two adjacent through holes 121 in the same row is 25-35 mm, and the distance between two adjacent rows of through holes 121 is 24-32 mm; the diameter of the through hole 121 is 2.8-3.6 mm.

[0053] Optionally, the distance between two adjacent through holes 121 in the same row is 30 mm, and the distance between two adjacent rows of through holes 121 is 28 mm; the diameter of the through hole 121 is 3.2 mm.

[0054] The beneficial effect of this embodiment is that the through holes 121 are arranged in multiple rows and each row of through holes 121 is distributed along the first direction, so that the through holes 121 can be evenly distributed in a matrix and are convenient for stamping.

[0055] In some embodiments, the cavity wall of the drying cavity 112 is a reflective plate, and the reflective plate is used to reflect infrared rays.

[0056] The cavity wall of the drying cavity 112 is the supporting structure surrounding the drying cavity 112, namely the partition 12 and the partial box body 11 surrounding the drying box. The cavity wall of the drying cavity 112 is set as a reflective plate to enable infrared rays to be reflected multiple times in the drying cavity 112. Optionally, the reflective plate is a stainless steel mirror plate.

[0057] The beneficial effects of this embodiment are as follows: the cavity wall of the drying cavity 112 is arranged as a reflective plate to enhance the reflection of infrared rays, reduce the absorption of infrared rays by the cavity wall, so that more infrared rays are used to heat the gas and products in the drying cavity 112, and improve the utilization rate of infrared rays.

[0058] In some embodiments, a reflective layer is disposed on the cavity wall of the drying cavity 112, and the reflective layer is used to reflect infrared rays.

[0059] Optionally, the reflective layer comprises an infrared coating or an aluminum foil.

[0060] The beneficial effects of this embodiment are as follows: the reflective layer is combined with the cavity wall of the drying cavity 112, so that the cavity wall of the drying cavity 112 can reflect infrared rays without using a reflective plate, and the types of materials that can be selected for the cavity wall of the drying cavity 112 are increased on the basis of ensuring the cavity wall of the drying cavity 112 reflects infrared rays.

[0061] In some embodiments, Figure 1 , Figure 4 As shown, the cavity wall of the drying cavity 112 includes a first reflecting surface 1123 and at least one second reflecting surface 1124. The first reflecting surface 1123 is arranged opposite to the partition 12, and the second reflecting surface 1124 is located between the first reflecting surface 1123 and the partition 12. The angle B between the second reflecting surface 1124 and the first reflecting surface 1123 is an obtuse angle.

[0062] The first reflecting surface 1123 and the second reflecting surface 1124 are both inner wall surfaces of the drying chamber 112. Optionally, the infrared heaters 13 are evenly arranged on the partition 12, and the first reflecting surface 1123 and the partition 12 are parallel.

[0063] It can be understood that a plurality of second reflecting surfaces 1124 can be provided, and the plurality of second reflecting surfaces 1124 are connected to form a closed loop, such as a prism; the second reflecting surface 1124 can also be a closed loop formed by a curved surface, such as a truncated cone; along the direction perpendicular to the partition 12 from the partition 12 to the first reflecting surface 1123, the closed loop area surrounded by the second reflecting surface 1124 gradually becomes smaller.

[0064] The beneficial effects of this embodiment are as follows: since the area enclosed by one end of the second reflecting surface 1124 connected to the partition 12 is larger than the other end, part of the infrared rays are reflected by the first reflecting surface 1123. When the infrared rays are emitted toward the first reflecting surface 1123 along a direction perpendicular to the partition 12, part of the infrared rays are emitted to the second reflecting surface 1124. The second reflecting surface 1124 and the first reflecting surface 1123 reflect infrared rays in different directions, so that the infrared rays can reach various positions of the product from different angles, thereby heating the product more evenly.

[0065] In some embodiments, Figure 1 As shown, one end of the circulation pipe 14 connected to the ventilation cavity 111 is located at one end of the infrared heater 13 along the first direction.

[0066] The beneficial effects of this embodiment are as follows: after the gas in the circulation pipe 14 enters the ventilation chamber 111, it flows to the other end along the length direction of the infrared heater 13, so that the gas in the ventilation chamber 111 gradually flows from the through hole 121 into the drying chamber 112 along the length direction of the infrared heater 13, so that each position of the heater corresponds to the gas flowing out of each through hole 121, and the gas in the drying chamber 112 is heated more evenly.

[0067] In some embodiments, Figure 1 As shown, a first valve 15 is provided at one end of the circulation pipe 14 connected to the drying chamber 112 .

[0068] Optionally, the first valve 15 is a solenoid valve and the first valve 15 is connected to a controller to facilitate controlling the action of the first valve 15 .

[0069] The beneficial effects of this embodiment are as follows: when the infrared heater 13 just starts to heat, closing the first valve 15 can isolate the circulation pipe 14 from the drying chamber 112, reduce the space required for heating by the infrared heater 13, and increase the heating rate of the drying chamber 112; by controlling the opening of the first valve 15, the circulation rate of the gas in the drying chamber 112 can be controlled according to product needs.

[0070] In some embodiments, a fan 141 is provided on the circulation duct 14 , and the fan 141 is used to blow the gas in the circulation duct 14 toward the ventilation cavity 111 .

[0071] Optionally, the fan 141 is connected to a controller.

[0072] The beneficial effects of this embodiment are as follows: a fan 141 is provided to blow gas toward the ventilation chamber 111, and the flow velocity of the gas in the circulation duct 14 and the circulation velocity of the gas in the drying chamber 112 can be controlled by controlling the rotation speed of the fan 141, thereby controlling the distribution of heat carried by the gas.

[0073] In some embodiments, Figure 2 As shown, the baking device 100 also includes a second valve 16 and an exhaust fan 18. One end of the second valve 16 is connected to the drying chamber 112, and the other end of the second valve 16 is connected to the exhaust fan 18. The exhaust fan 18 is located outside the box 11 and is used to extract the gas in the box 11.

[0074] It is understood that the second valve 16 can be directly connected to the drying chamber 112, for example, a waste outlet 1122 is provided on the drying chamber 112, and the second valve 16 is connected to the waste outlet 1122; or Figure 2-3 As shown, the second valve 16 can also be connected to the drying chamber 112 through the exhaust duct 17, for example: the exhaust duct 17 is connected to the waste outlet 1122, the second valve 16 is connected to the exhaust duct 17, and the end of the exhaust duct 17 away from the waste outlet 1122 is connected to the exhaust fan 18.

[0075] Optionally, the second valve 16 is a solenoid valve, and the second valve 16 and the exhaust fan 18 are connected to a controller to facilitate the control of the second valve 16 and the exhaust fan 18, and to control the duration and interval of each opening of the exhaust fan 18 and the second valve 16. The odorous exhaust gas in the oven is discharged to the outside, and the dryness and temperature in the oven are maintained to meet the needs of the product.

[0076] The beneficial effects of this embodiment are as follows: waste gas (steam) or waste water will be generated after the product is dried. By opening the second valve 16 and the exhaust fan 18, the waste gas (steam) or waste water in the drying chamber 112 can be discharged to keep the drying chamber 112 dry and protect the product.

[0077] In some embodiments, the baking device 100 further includes a temperature sensor 19 and a controller. Figure 1 As shown, the temperature sensor 19 is disposed in the drying chamber 112 , and the controller is connected to the temperature sensor 19 and the infrared heater 13 ; the controller is used to control the operation of the infrared heater 13 according to the temperature sensed by the temperature sensor 19 .

[0078] The temperature sensor 19 is used to measure the temperature in the drying chamber 112. Optionally, the temperature sensor 19 is a thermocouple, a thermistor, a pressure thermometer or a resistance thermometer.

[0079] Optionally, the controller is a PLC controller or a single chip microcomputer controller.

[0080] The beneficial effects of this embodiment are as follows: according to the temperature sensed by the temperature sensor 19, the controller can adjust the output power of the infrared heater 13, thereby controlling the temperature in the drying chamber 112, so that the temperature in the drying chamber 112 is maintained within a set range to ensure the drying effect of the product. When the temperature in the drying chamber 112 reaches the set temperature, the controller can turn off the infrared heater 13, which is more energy-efficient.

[0081] In some embodiments, ceramic fiber felt, aluminum silicate wool or a heat isolation plate 12 is disposed on the outer wall of the box body 11 .

[0082] The ceramic fiber felt, aluminum silicate wool or heat baffle 12 is a heat-insulating layer arranged outside the box body 11. Optionally, the ceramic fiber felt is zirconium-containing ceramic fiber felt.

[0083] The beneficial effects of this embodiment are as follows: the ceramic fiber felt, aluminum silicate wool and the heat partition 12 all have excellent thermal insulation effects, which can reduce the heat loss in the drying chamber 112 and the ventilation chamber 111, so that the drying chamber 112 can heat up quickly and improve the heat utilization rate.

[0084] In some embodiments, a feed port and a discharge port are respectively provided at two ends of the drying chamber 112 along the third direction.

[0085] When using, Figure 4 As shown, the baking device 100 can be arranged on a product production line, and the conveyor belt 200 of the production line passes through the feed port and the discharge port.

[0086] The baking device 100 of any of the above embodiments can be used to dry ink or other products around printed glass.

[0087] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A baking device, characterized in that: include: Box; A partition, the partition is connected to the inner wall of the box body and divides the space in the box body into a ventilation chamber and a drying chamber, and the partition is provided with a plurality of through holes connecting the ventilation chamber and the drying chamber; An infrared heater is disposed in the drying chamber and extends along a first direction; A circulation pipe, one end of which is connected to the ventilation chamber, and the other end of which is connected to the drying chamber, and the circulation pipe is used to input gas into the ventilation chamber and discharge gas from the drying chamber.

2. The baking device according to claim 1, characterized in that: The partition is provided with a plurality of grooves extending along the first direction, the grooves are arranged in the drying chamber, the infrared heater includes a plurality of heating tubes extending along the first direction, the heating tubes are arranged in the grooves; the groove is provided with a plurality of through holes spaced around the first direction.

3. The baking device according to claim 1, characterized in that: The through holes are arranged in multiple rows, and the through holes in each row are distributed along the first direction. The distance between two adjacent through holes in the same row is 25mm-35mm, and the distance between two adjacent rows of through holes is 24mm-32mm; the diameter of the through holes is 2.8-3.6mm.

4. The baking device according to claim 1, characterized in that: The cavity wall of the drying cavity is a reflective plate, and the reflective plate is used to reflect infrared rays; Alternatively, a reflective layer is provided on the cavity wall of the drying cavity, and the reflective layer is used to reflect infrared rays.

5. The baking device according to claim 4, characterized in that: The cavity wall of the drying cavity comprises a first reflecting surface and at least one second reflecting surface, the first reflecting surface is arranged opposite to the partition, the second reflecting surface is located between the first reflecting surface and the partition, and the included angle between the second reflecting surface and the first reflecting surface is an obtuse angle.

6. The baking device according to claim 1, characterized in that: One end of the circulation duct connected to the ventilation cavity is located at one end of the infrared heater along the first direction.

7. The baking device according to claim 1, characterized in that: A first valve is provided at one end of the circulation pipe connected to the drying chamber; and / or, The circulation pipeline is provided with a fan, and the fan is used to blow the gas in the circulation pipeline toward the ventilation cavity.

8. The baking device according to claim 1, characterized in that: The baking device also includes a second valve and an exhaust fan, one end of the second valve is connected to the drying chamber, and the other end of the second valve is connected to the exhaust fan, the exhaust fan is located outside the box, and the exhaust fan is used to extract the gas in the box.

9. The baking device according to claim 1, characterized in that: The baking device also includes a temperature sensor and a controller. The temperature sensor is arranged in the drying chamber. The controller is connected to the temperature sensor and the infrared heater. The controller is used to control the operation of the infrared heater according to the temperature sensed by the temperature sensor.

10. The baking device according to any one of claims 1 to 9, characterized in that: The outer wall of the box body is provided with ceramic fiber felt, aluminum silicate wool or a heat isolation plate.

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