CN112219870B

CN112219870B - Bread baking tunnel furnace

Info

Publication number: CN112219870B
Application number: CN202011103366.3A
Authority: CN
Inventors: 陈毅强
Original assignee: Longhai Andrew Ma Fu Machinery Co Ltd
Current assignee: Fujian Xinmai Food Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2022-04-26
Anticipated expiration: 2040-10-15
Also published as: CN112219870A

Abstract

The invention discloses a bread baking tunnel furnace, which comprises a baking device for baking dough; the baking device comprises an oven, a rotating device for driving the oven to rotate, and a bearing disc for supporting the oven; the rotating device comprises a rotating support rod connected with the oven, the rotating support rod comprises a connecting support rod and a hanging support rod for hanging the oven, and the hanging support rod is rotatably connected with the connecting support rod; the bearing plate comprises a sliding section for supporting the oven to slide stably and a detention section for the oven to load and unload bread; the stagnation section is lower than the taxiing section; the diameter of the oven is less than the length of the retention section. The present case is through full-automatic kneading dough kneading and toasting, has solved among the prior art bread preparation inefficiency, and the problem that the workman is easily hindered by oven high temperature mistake.

Description

Bread baking tunnel furnace

Technical Field

The invention relates to the field of bread manufacturing machinery, in particular to a bread baking tunnel furnace.

Background

With the improvement of the living standard of people, the requirements on food are also improved, particularly breakfast, bread is taken as one of the most common foods in daily breakfast of people, and can provide enough nutrition for people; the existing bread making process is generally to manually make dough, and then the well made dough is put into an oven to be baked, so that the efficiency is low, the temperature of the oven is generally higher, and workers are easily accidentally injured.

In view of the above, the applicant has made an intensive study to solve the above problems and has made the present invention.

Disclosure of Invention

The invention mainly aims to provide a bread baking tunnel furnace, which solves the problems that in the prior art, bread making efficiency is low, and workers are easily injured by mistake.

In order to achieve the above purpose, the solution of the invention is: the bread baking tunnel furnace comprises a baking device for baking dough; the baking device comprises an oven, a rotating device for driving the oven to rotate, and a bearing disc for supporting the oven; the rotating device comprises a rotating support rod connected with the oven, the rotating support rod comprises a connecting support rod and a hanging support rod for hanging the oven, and the hanging support rod is rotatably connected with the connecting support rod; the bearing plate comprises a sliding section for supporting the oven to slide stably and a detention section for the oven to load and unload bread; the stagnation section is lower than the taxiing section; the diameter of the oven is less than the length of the retention section.

Further, the sliding section is provided with an entrance end for the oven to enter the sliding section and an output end for the oven to exit the sliding section; the retention section is located between the output end and the entry end.

Further, the entering end is provided with a slope section for the oven to enter the sliding section from the retention section.

Furthermore, the connection part of the hanging support rod and the connecting support rod is provided with a reset elastic piece.

Furthermore, the rotating device further comprises a rotating main rod bearing the rotating branch rod and a rotating driving motor driving the rotating main rod to rotate.

Further, the oven comprises a box body for containing the bread, and the box body is provided with an opening for the bread to enter and exit.

Further, the oven also comprises a sealing door for closing or opening the upper opening of the oven body; the sealing door is rotatably connected with the box body.

Further, a plurality of baking ovens are arranged around the rotating main rod; the plurality of the ovens correspond to the plurality of the rotating support rods one by one.

Further, the baking device also comprises a cage which covers the rotating device and the protective shell of the oven.

Furthermore, a window for bread to enter and exit is formed in the protective shell; the retention section is located at the window.

Furthermore, a limiting rod for closing the sealing door is further arranged on the window.

Further, the dough kneading device is used for kneading the raw materials into dough.

Further, the dough kneading device comprises a dough kneading mechanism, a material injecting mechanism for injecting the raw materials into the dough kneading mechanism, and a stirring mechanism which can extend into the dough kneading mechanism to stir the raw materials.

Further, the dough kneading mechanism comprises a dough kneading barrel for containing raw materials, a dough kneading driving device for driving the dough kneading barrel to knead dough, and a turnover device for driving the dough kneading barrel and the dough kneading driving device to turn over simultaneously.

Further, the dough kneading barrel comprises a barrel body with an opening at the upper part, a barrel cover for sealing the opening, and a barrel cover driving device for driving the barrel cover to be opened or closed.

Further, the barrel cover driving device comprises a barrel cover driving cylinder for driving the barrel cover to be close to or far away from the opening of the barrel body, and a bearing plate for bearing and installing the barrel cover.

Further, a driven mechanism which rotates along with the dough kneading barrel and is connected with the barrel cover is further arranged on the bearing plate; the driven mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, wherein the first connecting rod and the second connecting rod are arranged on the bearing plate, and the third connecting rod is arranged between the first connecting rod and the second connecting rod; one end of the first connecting rod is rotatably connected to the bearing plate, and the other end of the first connecting rod is rotatably connected to the barrel cover; one end of the second connecting rod is rotatably connected to the bearing plate, and the other end of the second connecting rod is rotatably connected to the third connecting rod; one end of the third connecting rod is rotatably connected to the first connecting rod, and the other end of the third connecting rod is rotatably connected to the second connecting rod.

Further, the barrel cover driving device also comprises a base for bearing and installing the bearing plate and the barrel cover driving cylinder; the base is provided with a guide rail for the bearing plate to slide; and a sliding groove matched with the guide rail is formed on the bearing plate.

Further, the dough kneading driving device comprises a dough kneading driving motor and an eccentric driving rod vertically connected between an output shaft of the dough kneading driving motor and the barrel body; one end of the eccentric driving rod is fixedly connected with the dough kneading driving motor, and the other end of the eccentric driving rod is rotatably connected with the center of the bottom of the barrel body.

Further, the dough kneading driving device also comprises a first auxiliary rod connected to the side wall of the barrel body and a second auxiliary rod connected with the first auxiliary rod; one end of the first auxiliary rod is fixedly connected to the side wall of the barrel body, and the other end of the first auxiliary rod is rotatably connected to the second auxiliary rod; one end of the second auxiliary rod is rotatably connected with the first auxiliary rod, and the other end of the second auxiliary rod is rotatably connected to the turnover device.

Further, the turnover device comprises a mounting plate for bearing the barrel body and the dough kneading driving device, and a turnover driving motor for driving the mounting plate to turn over.

Further, the dough kneading device also comprises an installation frame for bearing and installing the dough kneading mechanism, the material injection mechanism and the stirring mechanism; the mounting plate is rotatably connected to the mounting frame.

Further, the dough kneading mechanism also comprises a spraying device for spraying flour into the dough kneading barrel; the sprinkler includes and connects at the staving lateral wall and with the inlet pipe of staving switch-on, right the inlet pipe carries out the feed section of thick bamboo of feed, connects jet-propelled pipe on the inlet pipe lateral wall, and to the jet-propelled pipe carries out the air pump of air feed.

Furthermore, the feed pipe and the air injection pipe are plastic hoses.

Further, the material injection mechanism comprises a water injection barrel for injecting water into the dough kneading barrel and a powder injection barrel for adding flour into the dough kneading barrel.

Further, the stirring mechanism comprises a stirrer for stirring the raw materials in the dough kneading barrel and a telescopic driving cylinder for driving the stirrer to extend into or withdraw from the dough kneading barrel.

Further, the dough kneading device also comprises a placing platform for placing the kneaded dough.

Further, the baking device also comprises a manipulator for placing the kneaded dough into the baking device.

After the structure is adopted, the bread baking tunnel furnace carries out full-automatic dough kneading and kneading through the dough kneading device, and then the kneaded dough is clamped into an oven in the baking device through the mechanical arm to be baked. The oven is hung at the tail end of the rotary supporting rod, the rotary supporting rod is rotatably connected with the connecting supporting rod, the oven horizontally slides on the sliding section of the bearing disc, when the oven rotates for a circle, bread is baked, and when the oven enters the retention section from the output end of the sliding section, the oven can lose balance and incline outwards due to the height difference between the sliding section and the retention section, at the moment, the sealing door can be automatically opened, the bread in the oven can automatically slide down, then new dough is put into the oven, the oven continuously rotates, and enters the sliding section from the slope section at the entrance end of the sliding section, at the moment, when the oven passes through the limiting rod of the window on the protective shell, the limiting rod can push the sealing door back, and the oven is sealed again; through encircling a plurality of ovens and setting on rotary device to this toasts that realizes continuous bread, compares the present case with prior art and through toasting in succession, not only can improve the efficiency of bread preparation, adopts mechanical equipment to accomplish in whole moreover, avoids the workman to be accidentally injured by the oven.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the kneading apparatus according to the present invention;

FIG. 3 is a schematic mechanism diagram of the kneading drive unit according to the present invention;

FIG. 4 is a schematic view of a rotary device according to the present invention;

FIG. 5 is a schematic structural view of a carrier tray according to the present invention.

In the figure: 1-baking device, 11-baking oven, 111-box body, 112-sealing door, 12-rotating device, 121-rotating main rod, 122-rotating support rod, 1221-connecting support rod, 1222-hanging support rod, 1223-resetting elastic piece, 13-bearing disc, 131-sliding section, 1311-inlet end, 1312-outlet end, 132-detention section, 14-protective shell, 141-window and 142-limiting rod; 2-dough kneading mechanism, 21-dough kneading barrel, 211-barrel body, 212-barrel cover, 213-barrel cover driving cylinder, 214-bearing plate, 215-base, 216-driven mechanism, 22-dough kneading driving motor, 23-eccentric driving rod, 24-first auxiliary rod, 25-second auxiliary rod, 26-mounting plate, 27-overturn driving motor, 28-mounting frame and 29-spraying device; 3-material injection mechanism, 31-water injection barrel and 32-powder injection barrel; 4-stirring mechanism, 41-stirrer and 42-telescopic driving cylinder; 5-mechanical arm.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.

As shown in fig. 1 to 5, a tunnel oven for bread baking, includes a baking apparatus 1 for baking a dough; the baking device 1 comprises an oven 11, a rotating device 12 for driving the oven 11 to rotate, and a bearing disc 13 for supporting the oven 11; the rotating device 12 comprises a rotating rod 122 connected with the oven 11, the rotating rod 122 comprises a connecting rod 1221 and a hanging rod 1222 for hanging the oven 11, and the hanging rod 1222 is rotatably connected with the connecting rod 1221; the bearing plate 13 comprises a sliding section 131 for supporting the oven 11 to slide smoothly, and a retention section 132 for the oven 11 to load and unload bread; the stagnation section 132 is lower than the skid section 131; the diameter of the oven 11 is less than the length of the retention section 132. The dough is fully automatically kneaded and kneaded by the kneading device, and then the kneaded dough is clamped into the oven 11 of the baking device 1 by the manipulator 5 to be baked. The oven 11 is hung at the end of the rotating rod 122, the rotating rod 122 is rotatably connected with the connecting rod 1221, the oven 11 horizontally slides on the sliding section 131 of the bearing disc 13, when the oven 11 rotates for one circle, the bread is baked, and the oven 11 enters the retention section 132 from the output end 1312 of the sliding section 131, because of the height difference between the sliding section 131 and the retention section 132, the oven 11 loses balance and inclines outwards, at this time, the sealing door 112 is automatically opened, the bread in the oven 11 automatically slides down, then new dough is put into the oven 11, the oven 11 continues to rotate, and enters the sliding section 131 from the slope section of the entrance end 1311 of the sliding section 131, at this time, when the oven 11 passes through the limiting rod 142 of the window 141 on the protective casing 14, the limiting rod 142 pushes the sealing door 112 back, and the oven 11 is sealed again; the plurality of ovens 11 are arranged on the rotating device 12 in a surrounding mode, so that continuous bread baking is achieved, the bread making efficiency can be improved, mechanical equipment is adopted in the whole process, and workers are prevented from being accidentally injured by the ovens 11.

Preferably, skid segment 131 has an entry end 1311 for oven 11 to enter skid segment 131, and an exit end 1312 for oven 11 to exit skid segment 131; the hold-up section 132 is located between the output terminal 1312 and the entry terminal 1311. When the oven 11 enters the skid section 131 from the entrance end 1311 of the skid section 131, then exits from the output end 1312 of the skid section 131 and enters the retention section 132, and then enters the skid section 131 from the retention section 132, the cycle is performed.

Preferably, the entrance end 1311 is formed with a slope section for the oven 11 to enter the slide section 131 from the stagnation section 132. Since the retention section 132 is lower than the skid section 131, the oven 11 more easily enters the skid section 131 through a slope.

Preferably, the connection between the suspension strut 1222 and the connection strut 1221 is provided with a return elastic member 1223. When the oven 11 enters the retention section 132 from the sliding section 131, due to the height difference between the two sections, the hanging rod 1222 will rotate with the connecting rod 1221 under the action of the gravity of the oven 11, so that the oven 11 tilts outwards to pour out the baked bread, and by arranging a resetting elastic member 1223 at the connection position, the oven 11 can have a buffering function in the tilting process, so as to prevent the oven 11 from colliding with the retention section 132 too much, and in addition, when the oven 11 is ready to continue to enter the sliding section 131, the resetting elastic member 1223 can make the oven 11 enter the horizontal state more easily.

Preferably, the rotating device 12 further includes a rotating main rod 121 carrying the rotating fulcrum bar 122, and a rotating driving motor driving the rotating main rod 122 to rotate. The rotating main rod 121 is driven to rotate by a rotating driving motor (not shown in the figure), so as to drive the rotating branch 122 to rotate, so that the oven 11 on the rotating branch 121 rotates, and after the oven 11 rotates for one circle, the bread is baked.

Preferably, the oven 11 includes a box 111 for containing bread, and the box 111 is provided with an opening for the bread to enter and exit. Preferably, the oven 11 further includes a sealing door 112 for closing or opening an opening of the box body 111; the sealing door 112 is rotatably connected to the case 111. Bread enters and exits the oven 11 through an opening in the box body 111, and the opening is opened or closed by using the sealing door 112, so that the oven 11 can prevent heat loss when in work.

Preferably, a plurality of toasters 11 are provided around the rotating main bar 121; the plurality of ovens 11 correspond to the plurality of rotary supporting rods 122 one to one. The plurality of ovens 11 are arranged around the rotating main rod 121, so that continuous baking is realized, and the working efficiency is improved.

Preferably, the cooking device 1 further comprises a protective housing 14 covering the rotating means 12 and the cooking chamber 11. Since the temperature of the oven 11 is high, the worker is prevented from being accidentally injured by the protective case 14.

Preferably, the protective casing 14 is provided with a window 141 for the bread to enter and exit; the stagnation section 132 is located at the window 141. The kneaded dough is put into the toaster 11 or the toasted bread is taken out through the window 141.

Preferably, a stop bar 142 for closing the sealing door 112 is further provided on the window 141. The limit rod 142 is fixedly disposed on the window 141, when the toaster 11 is ready to enter the slide segment 131, the sealing door 112 is in an open state, and when the toaster 11 passes through the limit rod 142, the sealing door 112 is blocked by the limit rod 142, so that the toaster 11 is closed.

Preferably, the dough kneading device is used for kneading the raw materials into dough. The dough is made by kneading the raw materials through a kneading device in a full-automatic manner.

Preferably, the kneading device comprises a kneading mechanism 2, a material injecting mechanism 3 for injecting the raw material into the kneading mechanism 2, and a stirring mechanism 4 which can be inserted into the kneading mechanism 2 to stir the raw material. The dough kneading device realizes full-automatic dough kneading and dough kneading through the dough kneading mechanism 2, the material injection mechanism 3 and the stirring mechanism 4, so that the labor cost can be reduced, and the efficiency can be improved.

Preferably, the kneading mechanism 2 includes a kneading barrel 21 for containing the raw material, a kneading driving device for driving the kneading barrel 21 to knead, and an inverting device for driving the kneading barrel 21 and the kneading driving device to invert simultaneously. After the dough kneading barrel 21 is turned by 90 degrees through the turning device, the dough kneading barrel 21 is driven to rotate through the dough kneading driving device to perform dough kneading action, and finally the dough kneading barrel 21 is turned by 30 degrees to pour out kneaded dough.

Preferably, the dough kneading barrel 21 includes a barrel body 211 having an opening at the upper side, a barrel cover 212 for closing the opening, and a barrel cover driving device for driving the barrel cover 212 to open or close. The opening of the barrel cover 212 is driven to open and close through the barrel cover driving device, so that dough is prevented from being thrown out of the dough kneading process.

Preferably, the tub cover driving means includes a tub cover driving cylinder 213 for driving the tub cover 212 to be close to or far from the opening of the tub 211, and a bearing plate 214 for bearing and mounting the tub cover 212. The barrel cover driving cylinder 213 drives the barrel cover 212 to be close to or far away from the opening of the barrel body 211, so that flour is prevented from being thrown out of the dough kneading barrel 21 in the dough kneading process.

Preferably, the bearing plate 214 is also provided with a driven mechanism 216 which rotates along with the dough kneading barrel 21 and is connected with the barrel cover; the driven mechanism 216 includes a first connecting rod, a second connecting rod and a third connecting rod, wherein the first connecting rod and the second connecting rod are arranged on the bearing plate 214; one end of the first connecting rod is rotatably connected to the bearing plate 214, and the other end of the first connecting rod is rotatably connected to the barrel cover 212; one end of the second connecting rod is rotatably connected to the bearing plate 214, and the other end is rotatably connected to the third connecting rod; one end of the third connecting rod is rotatably connected to the first connecting rod, and the other end of the third connecting rod is rotatably connected to the second connecting rod. When the barrel body 211 is turned over by 90 degrees and then the barrel cover 212 is covered, at this time, the barrel cover 212 is adapted to the rotation of the barrel body 211 through the driven mechanism 216 during the dough kneading process.

Preferably, the tub cover driving apparatus further includes a base 215 carrying the mounting plate 214 and the tub cover driving cylinder 213; the base 215 is provided with a guide rail for the bearing plate 214 to slide; the bearing plate 214 is formed with a sliding slot that mates with the guide rail. The bearing plate 214 is driven by the barrel cover driving cylinder 213 to slide along the guide rail on the base 215, so that the bearing plate 214 is more stable and smooth when approaching or departing from the barrel body 211.

Preferably, the kneading driving means includes a kneading driving motor 22, an eccentric driving lever 23 vertically connected between an output shaft of the kneading driving motor 22 and the tub 211; one end of the eccentric driving rod 23 is fixedly connected with the kneading driving motor 22, and the other end is rotatably connected with the bottom center of the barrel body 211. By vertically arranging the eccentric driving rod 23 between the kneading driving motor 22 and the kneading barrel 21, the kneading barrel 21 can be eccentrically rotated by the kneading driving motor 22, so that the raw materials in the barrel can be kneaded into long-strip-shaped dough under the eccentric rotation of the kneading barrel 21 and the gravity of the dough itself.

Preferably, the kneading drive means further includes a first auxiliary lever 24 connected to a sidewall of the tub 211 and a second auxiliary lever 25 connected to the first auxiliary lever 24; one end of the first auxiliary rod 24 is fixedly connected to the side wall of the barrel body 211, and the other end is rotatably connected to the second auxiliary rod 25; one end of the second auxiliary lever 25 is rotatably connected to the first auxiliary lever 24, and the other end is rotatably connected to the turnover device. The kneading drums 21 are more stabilized during the rotation by the first auxiliary lever 24 and the second auxiliary lever 25.

Preferably, the turning device includes a mounting plate 26 carrying the tub 211 and the kneading driving device, and a turning driving motor 27 driving the mounting plate 26 to turn. The mounting plate 26 is turned over by the turning drive motor 27, thereby turning over the kneading drums 21.

Preferably, the dough kneading device further comprises a mounting frame 28 for bearing and mounting the dough kneading mechanism 2, the material injection mechanism 3 and the stirring mechanism 4; mounting plate 26 is pivotally attached to mounting bracket 28. The kneading mechanism 2, the feeding mechanism 3 and the stirring mechanism 4 are supported by the mounting frame 28, so that they are more stable.

Preferably, the kneading mechanism 2 further comprises a spraying device 29 for spraying flour into the kneading barrel 21; the spraying device 29 includes a feed pipe connected to the sidewall of the barrel body 211 and connected to the barrel body 211, a supply cylinder for supplying the feed pipe, an air injection pipe connected to the sidewall of the feed pipe, and an air pump for supplying air to the air injection pipe. In the dough kneading process, a small amount of flour is sprayed into the dough kneading barrel 21, so that the dough can be prevented from being stuck on the inner wall of the dough kneading barrel 21, and in addition, the dough kneading process is quicker when the kneaded dough is poured out.

Preferably, the feeding pipe and the gas spraying pipe are plastic hoses. The plastic hose can adapt to the state of the dough kneading barrel 21 at any time.

Preferably, the filling mechanism 3 includes a water filling barrel 31 for filling water into the kneading barrel 21 and a flour filling barrel 32 for filling flour into the kneading barrel 21. The raw materials are automatically added into the dough kneading barrel 21 through the water injection barrel 31 and the powder injection barrel 32, so that automation is realized, and labor is saved.

Preferably, the stirring mechanism 4 includes a stirrer 41 for stirring the raw material in the kneading tub 21, and a telescopic driving cylinder 42 for driving the stirrer 41 to extend into or retract from the kneading tub 21. The agitator 41 drives the agitator to move up and down continuously through the telescopic driving cylinder 42 during stirring, so that kneading dough is more uniform.

Preferably, the dough kneading apparatus further comprises a placing platform for placing the kneaded dough. The dough is poured onto a resting platform after it has been kneaded, which facilitates the dough being fed into the oven 11.

Preferably, the baking machine also comprises a manipulator 5 for putting the kneaded dough into the baking device 1. The manipulator 5 comprises a clamping arm for clamping bread, a first driving arm and a second driving arm for driving the clamping arm to work. The kneaded dough is fed into the oven 11 by driving the holding arm by the first driving arm and the second driving arm.

The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.

Claims

1. A bread baking tunnel oven is characterized in that: comprises a baking device for baking the dough; the baking device comprises an oven, a rotating device for driving the oven to rotate, and a bearing disc for supporting the oven; the rotating device comprises a rotating support rod connected with the oven, the rotating support rod comprises a connecting support rod and a hanging support rod for hanging the oven, and the hanging support rod is rotatably connected with the connecting support rod; the bearing plate comprises a sliding section for supporting the oven to slide stably and a detention section for the oven to load and unload bread; the stagnation section is lower than the taxiing section; the diameter of the oven is smaller than the length of the retention section; the sliding section is provided with an entrance end for the oven to enter the sliding section and an output end for the oven to exit the sliding section; the detention section is located between the output end and the entry end; the inlet end is provided with a slope section for the oven to enter the sliding section from the retention section; a reset elastic piece is arranged at the joint of the suspension support rod and the connecting support rod; the oven comprises a box body for containing bread, and the box body is provided with an opening for the bread to enter and exit; the oven also comprises a sealing door for closing or opening the upper opening of the oven body; the sealing door is rotationally connected with the box body; the baking device also comprises a protective shell for covering the rotating device and the oven; the protective shell is provided with a window for bread to enter and exit; the retention section is located at the window.

2. The bread baking tunnel oven as claimed in claim 1, characterized in that: the rotating device also comprises a rotating main rod bearing the rotating branch rod and a rotating driving motor driving the rotating main rod to rotate.

3. The bread baking tunnel oven as claimed in claim 2, characterized in that: a plurality of baking ovens are arranged around the rotating main rod; the plurality of the ovens correspond to the plurality of the rotating support rods one by one.

4. The bread baking tunnel oven as claimed in claim 1, characterized in that: and the window is also provided with a limiting rod for closing the sealing door.

5. The bread baking tunnel oven as claimed in claim 1, characterized in that: also comprises a dough kneading device for kneading the raw materials into dough.

6. The bread baking tunnel oven as claimed in claim 5, wherein: the dough kneading device comprises a dough kneading mechanism, a material injecting mechanism for injecting raw materials into the dough kneading mechanism, and a stirring mechanism which can extend into the dough kneading mechanism to stir the raw materials.

7. The bread baking tunnel oven as in claim 6, wherein: the dough kneading mechanism comprises a dough kneading barrel for containing raw materials, a dough kneading driving device for driving the dough kneading barrel to knead dough, and a turnover device for driving the dough kneading barrel and the dough kneading driving device to turn over simultaneously.

8. The bread baking tunnel oven as in claim 7, wherein: the dough kneading barrel comprises a barrel body with an opening at the upper part, a barrel cover for sealing the opening of the barrel body, and a barrel cover driving device for driving the barrel cover to be opened or closed.

9. The bread baking tunnel oven as in claim 8, wherein: the barrel cover driving device comprises a barrel cover driving cylinder and a bearing plate, wherein the barrel cover driving cylinder drives the barrel cover to be close to or far away from the opening of the barrel body, and the bearing plate is used for bearing and installing the barrel cover.

10. The bread baking tunnel oven as in claim 9, wherein: the bearing plate is also provided with a driven mechanism which rotates along with the dough kneading barrel and is connected with the barrel cover; the driven mechanism comprises a first connecting rod, a second connecting rod and a third connecting rod, wherein the first connecting rod and the second connecting rod are arranged on the bearing plate, and the third connecting rod is arranged between the first connecting rod and the second connecting rod; one end of the first connecting rod is rotatably connected to the bearing plate, and the other end of the first connecting rod is rotatably connected to the barrel cover; one end of the second connecting rod is rotatably connected to the bearing plate, and the other end of the second connecting rod is rotatably connected to the third connecting rod; one end of the third connecting rod is rotatably connected to the first connecting rod, and the other end of the third connecting rod is rotatably connected to the second connecting rod.

11. The bread baking tunnel oven as in claim 10, wherein: the barrel cover driving device also comprises a base for bearing and installing the bearing plate and the barrel cover driving cylinder; the base is provided with a guide rail for the bearing plate to slide; and a sliding groove matched with the guide rail is formed on the bearing plate.

12. The bread baking tunnel oven as in claim 11, wherein: the dough kneading driving device comprises a dough kneading driving motor and an eccentric driving rod vertically connected between an output shaft of the dough kneading driving motor and the barrel body; one end of the eccentric driving rod is fixedly connected with the dough kneading driving motor, and the other end of the eccentric driving rod is rotatably connected with the center of the bottom of the barrel body.

13. The bread baking tunnel oven of claim 12, wherein: the dough kneading driving device also comprises a first auxiliary rod connected to the side wall of the barrel body and a second auxiliary rod connected with the first auxiliary rod; one end of the first auxiliary rod is fixedly connected to the side wall of the barrel body, and the other end of the first auxiliary rod is rotatably connected to the second auxiliary rod; one end of the second auxiliary rod is rotatably connected with the first auxiliary rod, and the other end of the second auxiliary rod is rotatably connected to the turnover device.

14. The bread baking tunnel oven of claim 13, wherein: the turnover device comprises a mounting plate for bearing the barrel body and the dough kneading driving device and a turnover driving motor for driving the mounting plate to turn over.

15. The bread baking tunnel oven of claim 14, wherein: the dough kneading device also comprises a mounting frame for bearing and mounting the dough kneading mechanism, the material injection mechanism and the stirring mechanism; the mounting plate is rotatably connected to the mounting frame.

16. The bread baking tunnel oven of claim 15, wherein: the dough kneading mechanism also comprises a spraying device for spraying flour into the dough kneading barrel; the sprinkler is including connecting at the staving lateral wall and with the inlet pipe of staving switch-on, right the inlet pipe carries out the feed section of thick bamboo of feed, connects jet-propelled pipe on the inlet pipe lateral wall, and to the air pump that the jet-propelled pipe carried out the air feed.

17. The bread baking tunnel oven of claim 16, wherein: the inlet pipe and the air injection pipe are plastic hoses.

18. The bread baking tunnel oven of claim 17, wherein: the material injection mechanism comprises a water injection barrel for injecting water into the dough kneading barrel and a powder injection barrel for adding flour into the dough kneading barrel.

19. The bread baking tunnel oven of claim 18, wherein: the stirring mechanism comprises a stirrer for stirring the raw materials in the dough kneading barrel and a telescopic driving cylinder for driving the stirrer to extend into or withdraw from the dough kneading barrel.

20. The bread baking tunnel oven of claim 19, wherein: the dough kneading device further comprises a placing platform for placing the kneaded dough.

21. The bread baking tunnel oven as claimed in claim 1, characterized in that: the dough baking device also comprises a manipulator for placing the kneaded dough into the baking device.