Rapid fermentation device for leavening dough

Abstract

The invention relates to the technical field of leavening dough fermentation, and discloses a leavening dough rapid fermentation device which comprises a box body, a box door is arranged on the front face of the box body, a feeding hopper is fixedly connected to the top of the box body, and a pretreatment mechanism is arranged in the box body; the pretreatment mechanism comprises a hydraulic motor, a transmission shaft, a cutter, a first transverse shaft, a first movable rod, a first movable plate, a balancing weight and a pendulum bob; the hydraulic motor is fixedly connected to the front face of the box body, the transmission shaft is driven through the hydraulic motor, the cutter is driven to cut up the leavening dough, and the contact area when the leavening dough and flour are mixed is increased. Through mutual cooperation of a pendulum bob, a first movable rod, a balancing weight and a first movable plate, dough fragments are evenly poured to the bottom of the box body, it is ensured that the dough fragments are evenly distributed in flour, and therefore fermentation is more sufficient by improving the mixing uniformity of the dough fragments and the flour.

Description

Technical Field

[0001] The invention relates to the technical field of old dough fermentation, in particular to an old dough rapid fermentation device. Background Art

[0002] Sourdough fermentation is a traditional fermentation method that uses old dough (also called starter or fermented dough) to ferment new dough, giving it a unique flavor and texture.

[0003] According to a Chinese patent with the announcement number "CN218710350U", a dough fermentation tank is disclosed, including a shell, a slide, a temperature detection device, a mounting box, a motor and a cover plate, wherein the slide is fixedly connected to the left and right sides of the rear side wall of the inner cavity of the shell, the temperature detection device is fixedly connected to the left side of the top of the inner cavity of the shell, the mounting box is plugged into the upper side of the rear side wall of the shell, the motor is fixedly connected to the middle of the front side wall of the inner cavity of the mounting box, the cover plate is hinged on the front side wall of the shell, and the rear side wall of the inner cavity of the shell is inlaid with an electromagnetic block. The dough fermentation tank reduces the workload of operators during cleaning, reduces the cleaning time of the dough fermentation tank, improves the actual cleaning efficiency of the dough fermentation tank, realizes the circulation of air inside the shell, ensures the uniform diffusion of heat, is conducive to ensuring the normal fermentation of the dough, and improves the effect of the dough fermentation tank during actual use.

[0004] The above patent can perform air circulation inside the shell when in use, but when using old dough for fermentation, if the whole ball of old dough is directly thrown into the flour for kneading, the mixing uniformity of the old dough and the flour is low, which in turn affects the fermentation efficiency of the dough. Therefore, a device for rapid fermentation of old dough is proposed to solve the above-mentioned problems. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a device for rapid fermentation of old dough in view of the deficiencies in the above-mentioned prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a device for rapid fermentation of old dough, comprising a box body, a box door is arranged on the front of the box body, a feed hopper is fixedly connected to the top of the box body, and a pretreatment mechanism is arranged inside the box body;

[0007] The pretreatment mechanism includes a hydraulic motor, a transmission shaft, a cutter, a first transverse axis, a first movable rod, a first movable plate, a counterweight, and a pendulum;

[0008] The hydraulic motor is fixedly connected to the front side of the box body, and the front and rear ends of the transmission shaft rotate and penetrate the front and rear sides of the box body respectively through bearings. The back output end of the hydraulic motor is fixedly connected to the front end of the transmission shaft through a coupling. The cutter is fixedly connected to the middle part of the transmission shaft. The cutter is arranged below the feed hopper. The old dough is cut into old dough fragments by the cutter. The rear end of the first horizontal axis is rotatably connected to the back inner wall of the box body through a bearing. The first horizontal axis is arranged below the cutter. The middle part of the first horizontal axis is fixedly connected with a first movable rod, and the front side of the first movable rod is fixedly connected with a first movable plate. The old dough fragments in the falling process are evenly poured to the bottom of the box body through the swing of the first movable plate. The back side of the first movable rod is fixedly connected with a counterweight block. By setting the counterweight block, the first movable rod will swing back under the action of gravity after the first movable rod ends its swing to one side. A pendulum is fixedly connected to the transmission shaft. The pendulum is arranged behind the cutter, and the pendulum contacts the first movable rod.

[0009] Preferably, a kneading mechanism is provided inside the box, and the kneading mechanism includes two second transverse axes and a telescopic plate, the front end of the second transverse axis rotates through the back inner wall of the box through a bearing, the rear end of the second transverse axis is fixedly connected with a gear, the two gears are meshed with each other, the front end of the second transverse axis is fixedly connected with a second movable plate, the second movable plate is a fan-shaped plate structure, the front side of the second movable plate is fixedly connected with two third transverse axes, the middle part of the third transverse axis is fixedly connected with a round rod, the old dough fragments, water and flour are evenly mixed by repeated rotation of the round rod, and this is repeated and kneaded into dough.

[0010] Preferably, the rear end of the transmission shaft is fixedly connected to the first transmission rod, the other end of the first transmission rod away from the transmission shaft is hinged to the second transmission rod, the other end of the second transmission rod away from the first transmission rod is hinged to the third transmission rod, the other end of the third transmission rod away from the second transmission rod is fixedly connected to the back side of the left gear, the rotation of the transmission shaft drives the left gear to swing repeatedly left and right through the first transmission rod, the second transmission rod and the third transmission rod, and the repeated swinging of the left gear drives the right gear to swing repeatedly left and right.

[0011] Preferably, brackets are fixedly connected to the left and right sides of the telescopic plate, and the other end of the bracket away from the telescopic plate is rotatably connected to the third horizontal axis at the top through a bearing. A conical block is fixedly connected to the top of the telescopic plate. The conical block is provided to prevent old dough fragments from falling onto the telescopic plate. When the two third horizontal axes at the top rotate, the brackets will be driven to rotate and the telescopic plate will be driven to move downward. During the downward movement of the telescopic plate, it will be stretched to both sides and unfolded, and the dough will be kneaded by the unfolded and downwardly moving telescopic plate.

[0012] Preferably, a stirring mechanism is provided on the top of the box body, and the stirring mechanism includes a tank body, water and yeast are provided inside the tank body, the tank body is fixedly connected to the top of the box body, a discharge port is opened at the bottom of the tank body and extends to the inside of the box body, a plurality of connecting rods are fixedly connected to the bottom of the discharge port, and water and yeast flow into the inside of the box body through the gaps between the plurality of connecting rods.

[0013] Preferably, a disc is fixedly connected to the bottom end of the connecting rod, a sliding rod slides through the bottom end of the disc, a third movable plate is fixedly connected to the middle part of the sliding rod, the third movable plate contacts the inner wall of the discharge port, and the discharge port is blocked by setting the third movable plate.

[0014] Preferably, the bottom end of the slide rod is fixedly connected to a second movable rod, the left end of the second movable rod is in contact with the pendulum, the outer sleeve of the slide rod is provided with a spring, the top end of the spring is fixedly connected to the third movable plate, the bottom end of the spring is fixedly connected to the disc, and the third movable plate and the slide rod are driven to return to their positions by setting the rebound force of the spring.

[0015] Preferably, the top inner wall of the tank body is rotatably connected to a vertical shaft via a bearing, a plurality of stirring rods are fixedly connected to the middle of the vertical shaft, a spiral groove is formed on the outer wall of the vertical shaft, a threaded sleeve is threadedly penetrated on the spiral groove, and the threaded sleeve is fixedly connected to the top of the sliding rod, and the water in the tank body and the yeast are premixed by rotating the stirring rod.

[0016] Preferably, the box body and the tank body are provided with electric heating tubes, and the heating tubes in the box body provide heat to promote dough fermentation, and the heating tubes in the tank body provide heat to enhance yeast activity.

[0017] The present invention adopts the above technical solution to bring the following beneficial effects:

[0018] 1. The invention provides a pretreatment mechanism, and the hydraulic motor drives the transmission shaft to drive the cutter to cut the old dough into pieces, thereby increasing the contact area between the old dough and the flour when they are mixed. After the old dough is cut into pieces, the yeast in it can contact the flour more quickly and extensively, accelerating the fermentation reaction speed. The pendulum, the first movable rod, the counterweight and the first movable plate cooperate with each other to evenly pour the old dough pieces to the bottom of the box, ensuring that the old dough is evenly distributed in the flour, thereby increasing the mixing uniformity of the old dough pieces and the flour to make the fermentation more complete.

[0019] 2. The invention further improves the fermentation efficiency by closely cooperating with the kneading mechanism and the pretreatment mechanism. The transmission shaft drives the gears, the second horizontal axis and the second movable plate through a series of transmission rods, so that the round rod rotates repeatedly, and the old dough pieces, water and flour are fully mixed and kneaded into dough. In this process, the various ingredients are fully blended, which not only makes the contact between the yeast and the flour closer, but also makes the water distribution in the dough more even, providing a suitable environment for yeast fermentation. Driven by the third horizontal axis, the telescopic plate moves downward and unfolds to knead the dough, which helps to form a good gluten network structure. The formation of the gluten network enhances the gas retention of the dough, so that the dough can better preserve the carbon dioxide gas produced by the yeast during the fermentation process, prompting the dough to expand rapidly and improving the fermentation efficiency.

[0020] 3. The invention realizes the stepwise addition of water and premixing through the stirring mechanism to ensure the fermentation process. When the round rod rubs the flour, the pendulum, the second movable rod, the third movable plate and the spring cooperate with each other to realize the stepwise addition of water. The stepwise addition of water allows the flour and water to be fully integrated, avoiding the adverse effects of adding too much or too little water at one time on the fermentation. At the same time, the enzymes in the flour are fully in contact with water and air, which promotes the biochemical reactions in the dough fermentation process, improves the quality of the dough, and further accelerates the fermentation speed. The sliding rod drives the threaded sleeve, which rotates the vertical axis through the spiral groove, driving the stirring rod to premix the water and yeast in the tank, ensuring that the water and yeast added each time are evenly mixed, providing a stable fermentation liquid for the dough fermentation, and ensuring the smooth progress of the fermentation process.

[0021] 4. The invention provides a suitable temperature by setting a heating tube, and the box heating tube provides a good environment for dough fermentation. The suitable temperature can accelerate the metabolic activity of yeast, so that the yeast can decompose sugar faster to produce carbon dioxide and alcohol, thereby accelerating the fermentation of dough. The tank heating tube enhances the activity of yeast, so that the yeast is in an active state before mixing with flour, further promoting the fermentation reaction. The heating tube cooperates with the pretreatment, kneading and stirring mechanisms to optimize the fermentation conditions in all directions, and significantly improve the fermentation efficiency of old dough. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the box area in the present invention;

[0025] Figure 4 It is a schematic diagram of the side structure of the cutting knife area in the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the conical block area in the present invention;

[0027] Figure 6 It is an exploded view of the gear area in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the telescopic plate area in the present invention;

[0029] Figure 8 It is a schematic diagram of the internal structure of the tank area in the present invention.

[0030] In the figure: 1, box body; 2, box door; 3, feed hopper; 4, pre-treatment mechanism; 401, hydraulic motor; 402, transmission shaft; 403, cutter; 404, first horizontal axis; 405, first movable rod; 406, first movable plate; 407, counterweight; 408, pendulum; 5, kneading mechanism; 501, second horizontal axis; 502, gear; 503, second movable plate; 504, round rod; 505, first transmission rod; 506, second transmission Moving rod; 507, third transmission rod; 508, third horizontal axis; 509, bracket; 5010, telescopic plate; 5011, conical block; 6, stirring mechanism; 601, tank body; 602, discharge port; 603, connecting rod; 604, disc; 605, sliding rod; 606, second movable rod; 607, third movable plate; 608, spring; 609, vertical axis; 6010, stirring rod; 6011, spiral groove; 6012, threaded sleeve. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figure 1-8 , one embodiment of the present invention is: a device for rapid fermentation of old dough, comprising a box body 1, a box door 2 is arranged on the front of the box body 1, a feed hopper 3 is fixedly connected to the top of the box body 1, and a pretreatment mechanism 4 is arranged inside the box body 1;

[0033] The pre-processing mechanism 4 includes a hydraulic motor 401, a transmission shaft 402, a cutter 403, a first transverse axis 404, a first movable rod 405, a first movable plate 406, a counterweight 407, and a pendulum 408;

[0034] The hydraulic motor 401 is fixedly connected to the front of the box body 1, and the front and rear ends of the transmission shaft 402 rotate through the front and rear sides of the box body 1 through bearings. The back output end of the hydraulic motor 401 is fixedly connected to the front end of the transmission shaft 402 through a coupling. The cutter 403 is fixedly connected to the middle of the transmission shaft 402. The cutter 403 is arranged below the feed hopper 3. The old dough is cut into old dough pieces by the cutter 403. The rear end of the first horizontal axis 404 is rotatably connected to the back inner wall of the box body 1 through a bearing. The first horizontal axis 404 is arranged below the cutter 403. 4 is fixedly connected to a first movable rod 405 in the middle, and a first movable plate 406 is fixedly connected to the front of the first movable rod 405. The first movable plate 406 is swung to evenly sprinkle the old dough fragments in the falling process to the bottom of the box body 1, and a counterweight block 407 is fixedly connected to the back of the first movable rod 405. By setting the counterweight block 407, the first movable rod 405 will swing back under the action of gravity after swinging to one side. A pendulum 408 is fixedly connected to the transmission shaft 402, and the pendulum 408 is set behind the cutter 403, and the pendulum 408 is in contact with the first movable rod 405.

[0035] Working principle: first open the box door 2 to put the flour into the box body 1, then throw the old dough into the feed hopper 3, and at the same time turn on the hydraulic motor 401 to drive the transmission shaft 402 to rotate counterclockwise. The rotation of the transmission shaft 402 drives the cutter 403 to rotate. The rotation of the cutter 403 cuts the old dough in the falling process into pieces, thereby increasing the contact area between the old dough and the flour. The transmission shaft 402 rotates counterclockwise while driving the pendulum 408 to rotate counterclockwise. During the counterclockwise rotation of the pendulum 408, it contacts the first movable rod 405 and drives the first movable rod 405 to swing to one side, and then swings back under the action of the counterweight block 407. Repeatedly, the first movable rod 405 swings back and forth left and right, and drives the first movable plate 406 to swing back and forth left and right, and evenly sprinkles the old dough fragments in the falling process to the bottom of the box body 1, thereby improving the mixing uniformity of the old dough and flour.

[0036] See also Figure 1-8 On the basis of the above embodiment, in another embodiment of the present invention, a kneading mechanism 5 is arranged inside the box 1, and the kneading mechanism 5 includes two second transverse axes 501 and a telescopic plate 5010. The front end of the second transverse axis 501 rotates through the back inner wall of the box 1 through a bearing, and the rear end of the second transverse axis 501 is fixedly connected with a gear 502. The two gears 502 are meshed with each other. The front end of the second transverse axis 501 is fixedly connected with a second movable plate 503, and the second movable plate 503 is a fan-shaped plate structure. The front side of the second movable plate 503 is fixedly connected with two third transverse axes 508, and the middle part of the third transverse axis 508 is fixedly connected with a round rod 504. The round rod 504 is repeatedly rotated to mix the old dough fragments, water and flour evenly, and this is repeated, and they are kneaded into dough.

[0037] The rear end of the transmission shaft 402 is fixedly connected to the first transmission rod 505, the other end of the first transmission rod 505 away from the transmission shaft 402 is hinged to the second transmission rod 506, the other end of the second transmission rod 506 away from the first transmission rod 505 is hinged to the third transmission rod 507, the other end of the third transmission rod 507 away from the second transmission rod 506 is fixedly connected to the back side of the left gear 502, the rotation of the transmission shaft 402 drives the left gear 502 to swing repeatedly left and right through the first transmission rod 505, the second transmission rod 506, and the third transmission rod 507, the repeated swing of the left gear 502 drives the right gear 502 to swing repeatedly left and right.

[0038] The left and right sides of the telescopic plate 5010 are fixedly connected with brackets 509, and the other end of the brackets 509 away from the telescopic plate 5010 is rotatably connected to the top third horizontal axis 508 through a bearing. The top of the telescopic plate 5010 is fixedly connected with a conical block 5011. The conical block 5011 is provided to prevent old dough fragments from falling onto the telescopic plate 5010. When the two third horizontal axes 508 at the top rotate, the brackets 509 are driven to rotate and the telescopic plate 5010 is driven to move downward. During the downward movement of the telescopic plate 5010, it will be stretched to both sides and unfolded, and the dough is kneaded by the unfolded and downwardly moving telescopic plate 5010.

[0039] Working principle: the rotation of the transmission shaft 402 drives the first transmission rod 505 to rotate, the rotation of the first transmission rod 505 drives the left gear 502 to rotate repeatedly through the second transmission rod 506 and the third transmission rod 507, the repeated rotation of the left gear 502 drives the right gear 502 to rotate repeatedly, the two gears 502 repeatedly rotate through the second horizontal axis 501 to drive the two second movable plates 503 to rotate repeatedly, the two second movable plates 503 repeatedly rotate through the third horizontal axis 508 to drive the four round rods 504 to rotate repeatedly, and mix the old dough fragments, water and flour evenly, and repeat this process, and knead them into dough, when the two third horizontal axes 508 on the top rotate, they will drive the bracket 509 to rotate, and drive the telescopic plate 5010 to move downward, the telescopic plate 5010 will be stretched to both sides and unfolded during the downward movement, and the dough is kneaded by the unfolded and downward moving telescopic plate 5010.

[0040] See also Figure 1-8 On the basis of the above embodiment, in another embodiment of the present invention, a stirring mechanism 6 is arranged on the top of the box body 1, and the stirring mechanism 6 includes a tank body 601, and water and yeast are arranged inside the tank body 601. The tank body 601 is fixedly connected to the top of the box body 1, and a discharge port 602 is opened at the bottom of the tank body 601 and extends to the inside of the box body 1. A plurality of connecting rods 603 are fixedly connected to the bottom of the discharge port 602, and water and yeast flow into the inside of the box body 1 through the gaps between the plurality of connecting rods 603.

[0041] The bottom end of the connecting rod 603 is fixedly connected with a disc 604, the bottom end of the disc 604 is slidably penetrated by a slide rod 605, the middle part of the slide rod 605 is fixedly connected with a third movable plate 607, the third movable plate 607 contacts the inner wall of the discharge port 602, and the discharge port 602 is blocked by setting the third movable plate 607.

[0042] The bottom end of the slide bar 605 is fixedly connected with the second movable bar 606, the left end of the second movable bar 606 is in contact with the pendulum 408, the outer sleeve of the slide bar 605 is provided with a spring 608, the top end of the spring 608 is fixedly connected with the third movable plate 607, the bottom end of the spring 608 is fixedly connected with the disc 604, and the third movable plate 607 and the slide bar 605 are driven to return to their original positions by setting the rebound force of the spring 608.

[0043] The top inner wall of the tank body 601 is rotatably connected to a vertical shaft 609 via a bearing, a plurality of stirring rods 6010 are fixedly connected to the middle of the vertical shaft 609, a spiral groove 6011 is formed on the outer wall of the vertical shaft 609, a threaded sleeve 6012 is threadedly penetrated on the spiral groove 6011, and the threaded sleeve 6012 is fixedly connected to the top of the sliding rod 605, and the water in the tank body 601 is premixed with the yeast by rotating the stirring rod 6010.

[0044] Electric heating tubes are provided in the box body 1 and the tank body 601, and the temperature can be adjusted. The heating tubes in the box body 1 provide heat to promote dough fermentation, and the heating tubes in the tank body 601 provide heat to enhance yeast activity.

[0045] Working principle: The transmission shaft 402 rotates counterclockwise to drive the pendulum 408 to rotate counterclockwise. During the counterclockwise rotation of the pendulum 408, it contacts the second movable rod 606 and pushes the second movable rod 606 upward. The second movable rod 606 moves upward to drive the third movable plate 607 to move to the inside of the tank body 601, stretch the spring 608, and cancel the blockage of the discharge port 602. At this time, the water in the tank body 601 will flow into the box body 1 along the gap between the discharge port 602 and the plurality of connecting rods 603 to mix with the flour. When the pendulum 408 and the second movable rod 606 When out of contact, the second movable rod 606 and the sliding rod 605 will move downward under the action of the rebound force of the spring 608, and drive the third movable plate 607 to move upward to re-block the discharge port 602, and so on. Water can be added in batches during the process of kneading the flour by the round rod 504. The sliding rod 605 moves up and down and drives the threaded sleeve 6012 to move up and down. The threaded sleeve 6012 moves up and down and drives the vertical shaft 609 to rotate through the spiral groove 6011. The rotation of the vertical shaft 609 drives the stirring rod 6010 to rotate, and the water and yeast in the tank body 601 are evenly mixed.

[0046] The present invention provides a device for rapid fermentation of old dough. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be considered as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A device for rapid fermentation of old dough, comprising a housing (1), characterized in that: The front of the box (1) is provided with a box door (2), the top of the box (1) is fixedly connected with a feed hopper (3), and the interior of the box (1) is provided with a pretreatment mechanism (4); The pretreatment mechanism (4) comprises a hydraulic motor (401), a transmission shaft (402), a cutter (403), a first transverse axis (404), a first movable rod (405), a first movable plate (406), a counterweight (407), and a pendulum (408); The hydraulic motor (401) is fixedly connected to the front side of the housing (1); the front and rear ends of the transmission shaft (402) are respectively rotatable and penetrate the front and rear sides of the housing (1) through bearings; the rear output end of the hydraulic motor (401) is fixedly connected to the front end of the transmission shaft (402) through a coupling; the cutter (403) is fixedly connected to the middle of the transmission shaft (402); the cutter (403) is arranged below the feed hopper (3); the rear end of the first horizontal axis (404) is rotatably connected to the rear inner wall of the housing (1) through a bearing; The first horizontal axis (404) is arranged below the cutter (403); a first movable rod (405) is fixedly connected to the middle of the first horizontal axis (404); a first movable plate (406) is fixedly connected to the front of the first movable rod (405); a counterweight (407) is fixedly connected to the back of the first movable rod (405); a pendulum (408) is fixedly connected to the transmission shaft (402); the pendulum (408) is arranged behind the cutter (403), and the pendulum (408) is in contact with the first movable rod (405).

2. The device for rapid fermentation of old dough according to claim 1, characterized in that: A kneading mechanism (5) is arranged inside the box body (1), and the kneading mechanism (5) comprises two second transverse axes (501) and a telescopic plate (5010), the front end of the second transverse axis (501) rotates through the back inner wall of the box body (1) through a bearing, the rear end of the second transverse axis (501) is fixedly connected with a gear (502), the two gears (502) are meshed with each other, the front end of the second transverse axis (501) is fixedly connected with a second movable plate (503), the second movable plate (503) is a fan-shaped plate structure, the front side of the second movable plate (503) is fixedly connected with two third transverse axes (508), and the middle part of the third transverse axis (508) is fixedly connected with a round rod (504).

3. The device for rapid fermentation of old dough according to claim 2, characterized in that: The rear end of the transmission shaft (402) is fixedly connected to a first transmission rod (505); the other end of the first transmission rod (505) away from the transmission shaft (402) is hinged to a second transmission rod (506); the other end of the second transmission rod (506) away from the first transmission rod (505) is hinged to a third transmission rod (507); the other end of the third transmission rod (507) away from the second transmission rod (506) is fixedly connected to the back side of the gear (502) on the left side.

4. The device for rapid fermentation of old dough according to claim 3, characterized in that: The left and right sides of the telescopic plate (5010) are fixedly connected with brackets (509), and the other end of the bracket (509) away from the telescopic plate (5010) is rotatably connected to the third horizontal axis (508) at the top through a bearing.

5. The device for rapid fermentation of old dough according to claim 4, characterized in that: A stirring mechanism (6) is arranged on the top of the box body (1), and the stirring mechanism (6) comprises a tank body (601). Water and yeast are arranged inside the tank body (601). The tank body (601) is fixedly connected to the top of the box body (1). A discharge port (602) is arranged at the bottom of the tank body (601) and extends to the inside of the box body (1). A plurality of connecting rods (603) are fixedly connected to the bottom of the discharge port (602).

6. The device for rapid fermentation of old dough according to claim 5, characterized in that: The bottom end of the connecting rod (603) is fixedly connected to a disc (604), the bottom end of the disc (604) is slidably penetrated by a slide rod (605), the middle part of the slide rod (605) is fixedly connected to a third movable plate (607), and the third movable plate (607) is in contact with the inner wall of the discharge port (602).

7. The device for rapid fermentation of old dough according to claim 6, characterized in that: The bottom end of the slide bar (605) is fixedly connected to a second movable bar (606), the left end of the second movable bar (606) is in contact with the pendulum (408), the outside of the slide bar (605) is sleeved with a spring (608), the top end of the spring (608) is fixedly connected to the third movable plate (607), and the bottom end of the spring (608) is fixedly connected to the disc (604).

8. The device for rapid fermentation of old dough according to claim 7, characterized in that: The top inner wall of the tank body (601) is rotatably connected to a vertical shaft (609) via a bearing, a plurality of stirring rods (6010) are fixedly connected to the middle of the vertical shaft (609), a spiral groove (6011) is formed on the outer wall of the vertical shaft (609), a threaded sleeve (6012) is threadedly penetrated on the spiral groove (6011), and the threaded sleeve (6012) is fixedly connected to the top of the sliding rod (605).

9. The device for rapid fermentation of old dough according to claim 8, characterized in that: Electric heating tubes are arranged inside the box body (1) and the tank body (601).

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