CN113455523A

CN113455523A - Automatic constant temperature baking equipment of rice crust

Info

Publication number: CN113455523A
Application number: CN202110772589.7A
Authority: CN
Inventors: 潘庆国
Original assignee: Anhui Yiguoxiang Ecological Agriculture Co ltd
Current assignee: Anhui Yiguoxiang Ecological Agriculture Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-10-01

Abstract

The invention discloses an automatic constant-temperature rice crust baking device, which belongs to the field of rice crust baking equipment, wherein a supporting mechanism for containing materials to be baked is arranged inside a shell, a heating element for baking the materials is arranged inside the shell, a temperature sensor capable of detecting the internal temperature of the shell in real time is arranged inside the shell, the supporting mechanism is movably arranged and can turn over the materials placed on the supporting mechanism in multiple directions, the supporting mechanism comprises a first conveying belt horizontally arranged inside the shell and a second conveying belt arranged inside the shell and rotating in the opposite direction to one rotating direction of the first conveying belt, and a circulating conveying mechanism capable of conveying the materials on the conveying belt at the lowest end inside the shell to the conveying belt at the topmost end inside the shell is arranged inside the shell. According to the invention, the first conveyor belt, the second conveyor belt and the third conveyor belt are matched with each other, so that the device can bake materials repeatedly, and the baking effect of the device on the materials is improved.

Description

Automatic constant temperature baking equipment of rice crust

Technical Field

The invention relates to the field of rice crust baking equipment, in particular to an automatic constant-temperature rice crust baking device.

Background

The crispy rice refers to a layer of rice which is coked into blocks by clinging to a pot when being stewed; the main raw materials comprise rice, millet, soybean, corn flour and the like; with the continuous improvement of the living standard of people, the crispy rice has been developed into leisure snack food which is crispy and delicious and is popular, the manufacturing process of the crispy rice comprises rice washing → rice cooking → rice steaming → material mixing → pressing → slicing → frying, baking → seasoning spraying → packaging, and most of the existing devices for baking the crispy rice are that the flaky crispy rice is directly placed on a tray, then the tray is placed in an oven and the crispy rice on the tray is baked, but because the crispy rice can only be in a static state in the baking process, the surface close to one side of the tray can not be in sufficient heat contact when the crispy rice is baked, the baking degree of the two sides of the crispy rice is greatly different, and the baking effect of the devices on the crispy rice is influenced.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide an automatic constant-temperature baking device for rice crust, which aims to solve the problems in the background technology.

2. Technical scheme

In order to solve the problems, the invention adopts the following technical scheme:

the utility model provides an automatic constant temperature baking equipment of rice crust, includes casing and heating element, the inside of casing is equipped with treats the supporting mechanism that toasts the material and hold, and the inside of casing is equipped with the heating element that toasts the material to the internally mounted of casing has the temperature-sensing ware that can carry out real-time detection to its inside temperature, supporting mechanism is movable setting and can carry out the multiaspect upset to the material of placing on it, and supporting mechanism includes that the level locates the inside conveyer belt of casing one, locate the inside of casing and a conveyer belt two that rotates opposite direction with the conveyer belt, conveyer belt one, conveyer belt two are provided with a plurality ofly and above-mentioned the two is dislocation formula and arranges in the inside of casing to the tail end that the terminal surface removed the end all is located and closely follows directly over its below conveyer belt up end removed the end head end, the inside of casing is equipped with can carry the material that is located on the inside lowest end conveyer belt of casing to being located the inside topmost conveyer belt of casing The material conveying mechanism comprises a conveyor belt III in an Contraband type structure, and a shoveling hopper which is arranged on the conveyor belt III at equal intervals and used for containing materials.

Further, every conveyer belt all is connected with the casing through transmission rod, and every transmission rod all rotates with the casing through connecting axle two and is connected.

Further, the conveyer belt three is crossed stop gear and is made its inside that is Contraband type structure and be located the casing, stop gear includes through connecting axle one with the casing rotate be connected and be used for the spacing roller that the conveyer belt three turned to, the corner of conveyer belt three is equipped with the spacing roller that two symmetries set up, and the distance between two spacing roller terminal surfaces in opposite directions slightly is greater than the length of shovel hopper on the conveyer belt width direction.

Further, the internally mounted of casing has the material direction that can be located on the inside least significant end conveyer belt of casing to carry to the spacing cell body on the conveyer belt three least significant end up end, and the length of port equals the width of conveyer belt one on the spacing cell body to the length of port slightly is down in the length of shovel hopper on conveyer belt width direction under the spacing cell body, the bottom mounting of spacing cell body is equipped with two symmetries and is located shovel hopper both sides and can be with the conveyer belt three last material spacing L type baffles on shovel hopper length region.

Furthermore, an inclined baffle which is arranged on the inner wall of the shell and guides falling materials is arranged between every two adjacent first conveyor belts and every two adjacent second conveyor belts.

Furthermore, a feeding mechanism vertically aligned with the uppermost conveyor belt I or the uppermost conveyor belt II is arranged at the top end of the shell, and a discharging mechanism vertically aligned with the horizontal end part of the three lower ends of the conveyor belts is arranged at the bottom end of the shell; the feeding mechanism comprises a feeding hole and a sealing door, the feeding hole is formed in the top end of the shell, the sealing door is installed on the feeding hole, and the discharging mechanism comprises a discharging hole and a sealing door, the discharging hole is formed in the bottom end of the shell, and the sealing door is installed on the discharging hole.

Furthermore, the top internally mounted of casing has the baffle to preventing that the material through the feed inlet from dropping on conveyer belt three, the top internally mounted of casing has the refining mechanism that can carry out the evener to the top material of the inside top conveyer belt one or the two conveyer belts that lie in the casing.

Further, the refining mechanism comprises a refining plate arranged at the top in the shell through a telescopic rod, and the bottom end face of the refining plate is parallel to the width direction of the conveying belt.

Furthermore, at least two groups of heating elements are arranged, and a blowing mechanism which corresponds to the heating elements one by one and can blow heat on the heating elements to the conveying belt is arranged in the shell.

Furthermore, the blowing mechanism comprises a groove which is arranged on the inner side wall of the shell and used for mounting the corresponding heating element, at least two fans which are arranged in the groove, a first circulating air channel and a second circulating air channel which are arranged on the inner side of the side wall of the shell and can carry out reciprocating circulation on heat in the shell, the air outlet ends of the first circulating air channel and the second circulating air channel are communicated with the groove, and the air inlet ends of the first circulating air channel and the second circulating air channel are communicated with the inside of the shell.

3. Advantageous effects

1. The invention can lead the materials to move in a circuitous way in the shell through the arrangement that the rotating directions of the first conveyor belt and the second conveyor belt are opposite in the horizontal direction, and when the materials fall from a high conveyor belt to a low conveyor belt, the turnover of the blocky materials can be realized, so that the blocky materials can be in more comprehensive contact with the heat in the shell, the baking effect of the device on the blocky materials is improved, and the third conveyor belt is Contraband-shaped and the shoveling hoppers arranged on the third conveyor belt at equal intervals, so that the third conveyor belt not only can bear the materials falling from the conveyor belt at the lowest end, but also can collect the fallen blocky materials through the shoveling hoppers on the third conveyor belt and rotate along with the third conveyor belt, and finally the blocky materials gathered in the shoveling hoppers can be released to the conveyor belt at the top end, thereby the device can bake the materials for many times in a circulating way, the baking effect of the device on the materials is improved.

2. The invention ensures that the limiting groove body can transmit the falling materials on the conveyor belt at the lowest end to the third conveyor belt in a limiting way by setting the length of the upper port of the limiting groove body to be equal to the width of the first conveyor belt and the length of the lower port of the limiting groove body to be slightly lower than the length of the shovel hopper in the width direction of the conveyor belt so as to ensure the receiving effect of the three pairs of materials on the conveyor belt, and ensures that the L-shaped baffle can limit the block materials scattered on the third conveyor belt by setting two symmetrical L-shaped baffles at the lower port of the limiting groove body, and the block materials scattered on the third conveyor belt can fall into the shovel hopper under the action of gravity by blocking the vertical part of the L-shaped baffle when the materials pass through the corner at the bottom end of the third conveyor belt and move upwards, so as to avoid the block materials scattered on the third conveyor belt from falling off the third conveyor belt in the steering conveying process, and the conveying effect of the three pairs of blocky materials of the conveyor belt is influenced.

3. When the sealing door at the bottom end of the shell is opened, the conveying belt III can rotate along the direction opposite to the circulating conveying direction, so that the materials received on the upper end face of the conveying belt III can automatically fall onto the discharge hole from the end part of the conveying belt III, the baked materials are automatically discharged, and the automatic feeding and discharging of the materials are realized.

4. When materials fall onto the upper end face of the topmost conveyor belt, the distance between the lower end face of the material homogenizing plate and the upper end face of the topmost conveyor belt can be adjusted through the extension or the extension of the pneumatic telescopic rod, so that people can spread the stacked materials according to the thickness of the blocky materials and the stacking height of the materials during baking, the materials can be uniformly contacted with heat in the shell in the circulating baking process, and the baking effect of the device on the blocky materials is improved.

5. The device can blow heat generated on the heating element into the shell by opening the fan, so that the heat can be sufficiently heated with materials on the conveyor belt under the flowing of air, the baking effect of the device on the rice crust is improved, and in addition, the air and the heat in the shell can circulate in the shell under the rotation of the fan through the arrangement that the two ends of the circulating air channel are respectively communicated with the interior of the shell and the groove provided with the fan, so that the flowing effect of heat flow gas in the shell is improved, and the baking effect of the device on the rice crust is enhanced.

Drawings

FIG. 1 is a schematic front view of the internal structure of the present invention;

FIG. 2 is a schematic diagram of a partial side view of a third conveyor belt;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 4 is a schematic top view of the structure of FIG. 3;

fig. 5 is a side view of the structure of fig. 4.

Reference numerals: 1. a housing; 2. a feed inlet; 3. a sealing door; 4. a first conveyor belt; 5. a second conveyor belt; 6. an inclined baffle plate; 7. a telescopic rod; 8. a material homogenizing plate; 9. a third conveyor belt; 10. shoveling a hopper; 11. a limiting roller; 12. a first connecting shaft; 13. a driving stick; 14. a second connecting shaft; 15. a limiting groove body; 16. an L-shaped baffle plate; 17. an annular gap; 18. a heating element; 19. a groove; 20. a fan; 21. a first circulating air duct; 22. a second circulating air duct; 23. a discharge port; 24. and a baffle plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Examples

As shown in figure 1, the automatic constant temperature baking device for rice crust comprises a shell 1 and a heating element 18, wherein a supporting mechanism for containing materials to be baked is arranged in the shell 1, the heating element 18 for baking the materials is arranged in the shell 1, a temperature sensor capable of detecting the internal temperature of the shell 1 in real time is arranged in the shell 1, the supporting mechanism is movably arranged and can turn over the materials placed on the supporting mechanism in multiple sides, the supporting mechanism comprises a first conveyor belt 4 horizontally arranged in the shell 1 and a second conveyor belt 5 arranged in the shell 1 and having a rotation direction opposite to that of the first conveyor belt 4, the first conveyor belt 4 and the second conveyor belt 5 are provided with a plurality of conveyor belts which are arranged in the shell 1 in a staggered manner, and the tail end of the moving end of the upper end face of each conveyor belt is positioned right above the head end of the moving end of the upper end face of the conveyor belt which is positioned below the conveyor belt, a circulating material conveying mechanism which can convey materials on a lowest-end conveyor belt in the shell 1 to a topmost conveyor belt in the shell 1 is arranged in the shell 1, and comprises a conveyor belt III 9 in an Contraband type structure and shovel hoppers 10 which are arranged on the conveyor belt III 9 at equal intervals and used for containing the materials;

as shown in fig. 3, each conveyor belt is connected with the housing 1 through a transmission rod 13, each transmission rod 13 is rotatably connected with the housing 1 through a second connecting shaft 14, the second connecting shaft 14 on each conveyor belt is rotated through a motor mounted on the housing 1, and the conveyor belts can be driven to rotate through the rotation of the motor, so that the block-shaped materials placed on the conveyor belts can be circulated for multiple times in the housing 1;

as shown in fig. 1 and 2, the conveyor belt three 9 is positioned inside the housing 1 in an Contraband-shaped structure through a limiting mechanism, the limiting mechanism comprises a limiting roller 11 which is rotatably connected with the housing through a first connecting shaft 12 and used for steering the conveyor belt three 9, two symmetrically arranged limiting rollers 11 are arranged at a corner of the conveyor belt three 9, the distance between the opposite end surfaces of the two limiting rollers 11 is slightly larger than the length of the shovel hopper 10 in the width direction of the conveyor belt, the arrangement of the limiting roller 11 can enable a certain part of the conveyor belt three 9 to generate a certain angle, a condition is provided for the conveyor belt three 9 to be Contraband-shaped inside the housing 1, in addition, the distance between the opposite end surfaces of the two limiting rollers 11 is slightly larger than the length of the shovel hopper 10 in the width direction of the conveyor belt, so that the limiting roller 11 can enable the conveyor belt three 9 to generate a certain angle, and the limiting roller 11 cannot be contacted with the shovel hopper 10 on the conveyor belt three 9, thereby ensuring the conveying effect of the shovel hopper 10 on the materials;

as shown in fig. 3, 4 and 5, a limiting groove body 15 capable of guiding and conveying the material on the lowest-end conveyor belt in the housing 1 to the upper end surface of the lowest end of the third conveyor belt 9 is installed in the housing 1, the length of the upper end opening of the limiting groove body 15 is equal to the width of the first conveyor belt 4, the length of the lower end opening of the limiting groove body 15 is slightly smaller than the length of the shovel hopper 10 in the width direction of the conveyor belt, two L-shaped baffles 16 which are symmetrically positioned at two sides of the shovel hopper 10 and can limit the material on the third conveyor belt 9 in the length area of the shovel hopper 10 are fixed at the bottom end of the limiting groove body 15, the length of the upper end opening of the limiting groove body 15 is equal to the width of the first conveyor belt 4, and the length of the lower end opening of the limiting groove body 15 is slightly smaller than the length of the shovel hopper 10 in the width direction of the conveyor belt, so that the limiting groove body 15 can convey the falling material on the lowest-end conveyor belt to the third conveyor belt 9 in a limiting manner, the receiving effect of the third conveyor belt 9 on materials is ensured, and the L-shaped baffle 16 can limit the block materials scattered on the third conveyor belt 9 through the arrangement of the two symmetrical L-shaped baffles 16 on the lower opening end of the limiting groove body 15, and when the materials pass through a corner at the bottom end of the third conveyor belt 9 and move upwards, the block materials scattered on the third conveyor belt 9 can fall into the shovel hopper 10 under the action of gravity through the obstruction of the vertical part of the L-shaped baffle 16 on the third conveyor belt 9, so that the block materials scattered on the third conveyor belt 9 are prevented from falling off from the third conveyor belt 9 in the steering conveying process, and the conveying effect of the third conveyor belt 9 on the block materials is influenced;

as shown in fig. 1, an inclined baffle 6 which is installed on the inner wall of the shell 1 and guides falling materials is arranged between every two adjacent first conveyor belts 4 and two adjacent second conveyor belts 5, and the materials falling from a high conveyor belt to a low conveyor belt can be limited through the inclined baffle 6, so that the materials cannot be separated from the conveyor belts in the layer-by-layer transfer process, and the conveying effect of the first conveyor belts 4 and the second conveyor belts 5 on the materials is improved;

as shown in fig. 1, a feeding mechanism vertically aligned with the uppermost first conveyor belt 4 or the second conveyor belt 5 is arranged at the top end of the shell 1, and a discharging mechanism vertically aligned with the horizontal end part of the lower end of the third conveyor belt 9 is arranged at the bottom end of the shell 1; the feeding mechanism comprises a feeding hole 2 arranged at the top end of the shell 1 and a sealing door 3 arranged on the feeding hole 2, the discharging mechanism comprises a discharging hole 23 arranged at the bottom end of the shell 1 and the sealing door 3 arranged on the discharging hole 23, when the sealing door 3 at the top end of the shell 1 is opened, blocky materials can be put into the shell 1 from the feeding hole 2, and the materials which are just put in can be carried by the conveyor belt positioned at the uppermost part in the shell 1, so that the automatic feeding of the materials is realized, when the sealing door 3 at the bottom end of the shell 1 is opened, the conveyor belt III 9 can rotate along the direction of circulating material conveying, so that the materials carried on the upper end surface of the conveyor belt III 9 can automatically fall onto the discharging hole 23 from the end part of the conveyor belt III, so that the baked materials can be automatically discharged, and the automatic feeding and discharging of the materials are arranged, the baking of the rice crust by people is greatly facilitated, the device is more intelligent, and the baking device is suitable for large-batch production of the rice crust;

as shown in fig. 1, a baffle 24 for preventing the material passing through the feed port 2 from falling on the third conveyor belt 9 is installed inside the top end of the housing 1, a material evening mechanism for evening the material on the top end of the uppermost first conveyor belt 4 or the second conveyor belt 5 inside the housing 1 is installed inside the top end of the housing 1, and the material falling from the feed port 2 can be shielded by the baffle 24, so that the material is prevented from falling on the third conveyor belt 9 in the falling process and finally falling into the inner bottom of the housing 1 along with the rotation of the third conveyor belt 9, and the material is wasted; the material homogenizing mechanism comprises a material homogenizing plate 8 which is arranged at the top in the shell 1 through a telescopic rod 7, the bottom end face of the material homogenizing plate 8 is parallel to the width direction of the conveying belt, when materials fall onto the upper end face of the topmost conveying belt, the distance between the lower end face of the material homogenizing plate 8 and the upper end face of the topmost conveying belt can be adjusted through the extension or the extension of the pneumatic telescopic rod 7, and therefore people can spread the stacked materials according to the thickness of the blocky materials and the stacking height of the materials during baking, the materials can be guaranteed to be in contact with heat in the shell 1 more uniformly in the circulating baking process, and the baking effect of the device on the blocky materials is improved;

as shown in fig. 1, at least two groups of heating elements 18 are provided, the heating elements 18 can be heating wires, and a blowing mechanism which corresponds to the heating elements 18 one by one and can blow heat on the heating elements 18 onto a conveyor belt is arranged inside the shell 1; the blowing mechanism comprises a groove 19 which is arranged on the inner side wall of the shell 1 and is used for installing a corresponding heating element 18, at least two fans 20 which are arranged inside the groove 19, a first circulating air channel 21 and a second circulating air channel 22 which are arranged on the inner side wall of the shell 1 and can carry out reciprocating circulation on heat inside the shell 1, the air outlet ends of the first circulating air channel 21 and the second circulating air channel 22 are communicated with the groove 19, the air inlet ends of the first circulating air channel 21 and the second circulating air channel 22 are communicated with the inside of the shell 1, heat generated on the heating element 18 can be blown into the inside of the shell 1 by opening the fans 20, so that the heat can be sufficiently heated with materials on a conveyor belt under the flowing of air, the baking effect of the device on the crispy rice is improved, and in addition, the two ends of the circulating air channels are respectively communicated with the inside of the shell 1 and the groove 19 which is provided with the fans 20, the air and heat inside the casing 1 can circulate inside the casing 1 under the rotation of the fan 20, so that the flowing effect of the hot flow gas inside the casing 1 is improved, and the baking effect of the device on the rice crust is enhanced.

The specific application process of the automatic constant-temperature rice crust baking device is as follows: when the device is used, firstly, the sealing door 3 at the top end of the shell 1 is opened, the rice crust is thrown onto the first conveying belt 4 at the highest position in the shell 1 from the feeding hole 2, as shown in the figure 1, secondly, the first conveying belt 4 and the second conveying belt 5 are started to rotate, and the rotating direction is shown by arrows in the figure 1, the rice crust on the first conveying belt 4 can penetrate through a gap between the bottom end of the material homogenizing plate 8 and the upper end face of the first conveying belt 4 when the first conveying belt 4 rotates, namely, the rice crust with more accumulated height can be flatly spread on the first conveying belt 4 under the blocking of the material homogenizing plate 8, so that the conveyed rice crust can be fully contacted with heat, and the baking effect of the device on the rice crust in the conveying process is ensured;

when the rice crust is driven by the first conveyor belt 4 and moves to the tail end of the upper end face of the first conveyor belt, the materials automatically fall on the second conveyor belt 5 which is close to the lower portion of the first conveyor belt, the falling rice crust can be conveyed in a guiding mode through the inclined baffle 6 in the falling process, so that the rice crust can completely fall on the second conveyor belt 5, then the second conveyor belt 5 rotates in a direction opposite to the rotating direction of the first conveyor belt 4, the materials on the second conveyor belt 5 are transmitted to the first conveyor belt 4 which is close to the lower portion of the first conveyor belt, the steps are repeated, the rice crust can move inside the shell 1 in a circuitous mode under the rotation of the first conveyor belt 4 and the second conveyor belt 5, the rice crust can be turned over during the layer-by-layer transmission process, and therefore the heat inside the shell 1 can be used for baking the rice crust fully, the baking effect of the device on the rice crust is improved;

when the crispy rice is transferred to the second conveyor belt 5 at the lowest end, the Contraband-shaped third conveyor belt 9 can be used for carrying the crispy rice falling from the second conveyor belt 5 at the lowest end and rotating along with the third conveyor belt 9, when the crispy rice passes through the corner position of the third conveyor belt 9, the crispy rice scattered on the third conveyor belt 9 can automatically fall into the shovel hopper 10 under the action of gravity, so that the crispy rice is gathered and conveniently transported, when the crispy rice is moved to the upper part inside the shell 1, the crispy rice in the shovel hopper 10 can automatically fall onto the first conveyor belt 4 at the topmost end under the action of gravity, so that the device can circularly bake the crispy rice for many times, the baking effect of the device on the crispy rice is improved, and in addition, when the crispy rice falls onto the third conveyor belt 9 from the second conveyor belt 5 at the lowest end, the falling materials on the conveyor belt at the lowest end can be transmitted onto the third conveyor belt 9 in a limiting manner by the limiting groove body 15, the receiving effect of the third conveyor belt 9 on materials is ensured, and the L-shaped baffle 16 can limit the block materials scattered on the third conveyor belt 9 through the arrangement of the two symmetrical L-shaped baffles 16 on the lower opening end of the limiting groove body 15, and when the materials pass through a corner at the bottom end of the third conveyor belt 9 and move upwards, the block materials scattered on the third conveyor belt 9 can fall into the shovel hopper 10 under the action of gravity through the obstruction of the vertical part of the L-shaped baffle 16 on the third conveyor belt 9, so that the block materials scattered on the third conveyor belt 9 are prevented from falling off from the third conveyor belt 9 in the steering conveying process, and the conveying effect of the third conveyor belt 9 on the block materials is influenced;

when the crispy rice is circulated in the shell 1 in a reciprocating manner, the heat generated on the heating element 18 can be blown into the shell 1 by opening the fan 20, so that the heat can be sufficiently heated with materials on a conveyor belt under the flowing of air, the baking effect of the device on the crispy rice is improved, in addition, the air and the heat in the shell 1 can be circulated in the shell 1 under the rotation of the fan 20 through the arrangement that the two ends of the circulating air duct are respectively communicated with the interior of the shell 1 and the groove 19 provided with the fan 20, so that the flowing effect of hot flow gas in the shell 1 is improved, the baking effect of the crispy rice of the device is enhanced, the temperature in the shell 1 can be monitored in real time through a temperature sensor arranged in the shell 1, the device can be guaranteed to bake the crispy rice in a constant temperature manner, and the baking quality of the device is improved, thus completing the using process of the automatic constant temperature baking device for the rice crust.

It should be understood by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as a limitation of the present invention, and that changes and modifications to the above embodiments are within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.

Claims

1. An automatic constant-temperature baking device for rice crust, which comprises a shell (1) and a heating element (18), wherein a supporting mechanism for containing materials to be baked is arranged in the shell (1), the heating element (18) for baking the materials is arranged in the shell (1), and a temperature sensor for detecting the internal temperature of the shell (1) in real time is arranged in the shell, and the automatic constant-temperature baking device is characterized in that the supporting mechanism is movably arranged and can turn the materials placed on the supporting mechanism in multiple sides, the supporting mechanism comprises a first conveying belt (4) horizontally arranged in the shell (1) and a second conveying belt (5) horizontally arranged in the shell (1) and opposite to the first conveying belt (4), the first conveying belt (4) and the second conveying belt (5) are arranged in the shell (1) in a staggered manner, and the tail end that every conveyer belt up end removed the end all is located and removes directly over the end head end following its below conveyer belt up end, the inside of casing (1) is equipped with can carry the material that is located on the inside least significant conveyer belt of casing (1) to the defeated material mechanism of circulation that is located on the inside topmost conveyer belt of casing (1), defeated material mechanism of circulation is including being three (9) of conveyer belt that Contraband type structure, equidistant shovel hopper (10) that just is used for holding the material of locating on conveyer belt three (9).

2. The automatic constant-temperature rice crust baking device according to claim 1, wherein each conveyor belt is connected with the casing (1) through a transmission roller (13), and each transmission roller (13) is rotatably connected with the casing (1) through a second connecting shaft (14).

3. The automatic constant-temperature rice crust baking device according to claim 1, wherein the third conveyor belt (9) is positioned inside the housing (1) in an Contraband-shaped structure through a limiting mechanism, the limiting mechanism comprises a limiting roller (11) which is rotatably connected with the housing through a first connecting shaft (12) and is used for steering the third conveyor belt (9), two symmetrically-arranged limiting rollers (11) are arranged at the corner of the third conveyor belt (9), and the distance between the opposite end faces of the two limiting rollers (11) is slightly larger than the length of the shoveling hopper (10) in the width direction of the conveyor belt.

4. The automatic constant-temperature rice crust baking device as claimed in claim 1, wherein a limiting groove body (15) capable of guiding and conveying materials on a lowest-end conveyor belt inside the shell (1) to the upper end face of the lowest end of a third conveyor belt (9) is mounted inside the shell (1), the length of an upper port of the limiting groove body (15) is equal to the width of the first conveyor belt (4), the length of a lower port of the limiting groove body (15) is slightly smaller than the length of a shoveling hopper (10) in the width direction of the conveyor belt, and two L-shaped baffles (16) which are symmetrically positioned on two sides of the shoveling hopper (10) and capable of limiting the materials on the third conveyor belt (9) in the length area of the shoveling hopper (10) are arranged at the bottom end of the limiting groove body (15).

5. The automatic constant-temperature rice crust baking device according to claim 1, wherein an inclined baffle (6) which is arranged on the inner wall of the shell (1) and guides falling materials is arranged between every two adjacent first conveyor belts (4) and second conveyor belts (5).

6. The automatic constant-temperature rice crust baking device according to claim 1, wherein the top end of the housing (1) is provided with a feeding mechanism vertically aligned with the uppermost conveyor belt I (4) or the uppermost conveyor belt II (5), and the bottom end of the housing (1) is provided with a discharging mechanism vertically aligned with the end part of the lower horizontal position of the conveyor belt III (9); the feeding mechanism comprises a feeding hole (2) formed in the top end of the shell (1) and a sealing door (3) installed on the feeding hole (2), and the discharging mechanism comprises a discharging hole (23) formed in the bottom end of the shell (1) and a sealing door (3) installed on the discharging hole (23).

7. The automatic constant-temperature rice crust baking device according to claim 6, wherein a baffle (24) for preventing the materials passing through the feeding hole (2) from falling on the third conveyor belt (9) is arranged inside the top end of the shell (1), and a material homogenizing mechanism for homogenizing the materials at the top end of the first conveyor belt (4) or the second conveyor belt (5) in the shell (1) is arranged inside the top end of the shell (1).

8. The automatic constant-temperature baking device for rice crust as claimed in claim 7, wherein the refining mechanism comprises a refining plate (8) mounted at the top inside the casing (1) through a telescopic rod (7), and the bottom end surface of the refining plate (8) is parallel to the width direction of the conveyor belt.

9. The automatic constant-temperature rice crust baking device according to claim 1, wherein at least two groups of heating elements (18) are provided, and the inside of the housing (1) is provided with a blowing mechanism which corresponds to the heating elements (18) one by one and can blow heat on the heating elements (18) to the conveyor belt.

10. The automatic constant-temperature rice crust baking device according to claim 9, wherein the blowing mechanism comprises a groove (19) which is formed in the inner side wall of the casing (1) and used for mounting a corresponding heating element (18), at least two fans (20) which are mounted inside the groove (19), a first circulating air duct (21) and a second circulating air duct (22) which are arranged inside the side wall of the casing (1) and can perform reciprocating circulation on heat inside the casing (1), the air outlet ends of the first circulating air duct (21) and the second circulating air duct (22) are communicated with the groove (19), and the air inlet ends of the first circulating air duct (21) and the second circulating air duct (22) are communicated with the inside of the casing (1).