A rotary furnace for food production

Abstract

The application discloses a rotary furnace for food production and belongs to the technical field of rotary furnaces.The rotary furnace comprises a heating bin, a driving mechanism, a contraction mechanism and a fitting mechanism.The driving mechanism is arranged on the top of the heating bin, a first movable cavity is formed in one side of the heating bin, a second rotating rod is rotationally connected to the inner cavity of the first movable cavity, and a through hole is formed in the inner cavity of the first movable cavity.In the application, each moving block uniformly supports the second rotating rod from the outer circumferential side of the second rotating rod.When the second rotating rod is deviated due to bearing abrasion, the moving block applies a radial constraint force to the second rotating rod from multiple directions, effectively inhibits the radial deviation and shaking of the second rotating rod, and makes the storage rack always keep a stable operation state, thereby avoiding the jamming and abnormal sound caused by the deviation of the main shaft and improving the food heating uniformity and the equipment operation reliability.

Description

Technical Field

[0001] This invention belongs to the field of rotary furnace technology, and particularly relates to a rotary furnace for food production. Background Technology

[0002] Rotary ovens are commonly used equipment in food baking and processing, and are widely used in the production of bread, pastries, biscuits and other foods. The interior of the rotary oven is equipped with a rack. By rotating the rack, the food placed on the rack is heated evenly in the rotary oven, ensuring that the baking color and doneness of the food are consistent, thereby improving the yield of the finished product.

[0003] However, under long-term high-temperature and continuous heavy-load operation, the main shaft and bearings of existing rotary furnaces are prone to fatigue wear of the bearing balls and raceways. At the same time, the high-temperature environment will accelerate the failure and aging of the lubricating grease, causing the bearing clearance to gradually increase. Eventually, the second rotating rod will be radially offset. After the second rotating rod is offset, the shelf on it will shake, jam, and make abnormal noises, which will seriously affect the heating uniformity of food and product quality. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of radial displacement of the second rotating rod, which causes the shelf on it to shake, jam, and make abnormal noises, seriously affecting the heating uniformity and product quality of food. Therefore, this invention proposes a rotary oven for food production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a rotary oven for food production, comprising a heating chamber, and further comprising a drive mechanism, a shrinking mechanism, and a bonding mechanism:

[0006] The driving mechanism is located on the top of the heating chamber. A first movable cavity is opened on one side of the heating chamber. A second rotating rod is rotatably connected to the inner cavity of the first movable cavity. A through hole is opened in the inner cavity of the first movable cavity. The other end of the second rotating rod extends into the inner cavity of the heating chamber through the through hole opened in the inner cavity of the first movable cavity. A shelf is connected to the other end of the second rotating rod. The retraction mechanism is disposed in the first movable cavity. The retraction mechanism includes multiple moving blocks. A moving rod is connected to one side of each moving block. The moving block is disposed at a corresponding position outside the second rotating rod. A second movable cavity is opened on one side of each moving block. The moving rod moves the moving block at the corresponding position in the first movable cavity. The fitting mechanism is located in the second movable cavity at the corresponding position, and a third movable cavity is opened on one side of the shelf, and a limiting mechanism is provided in the third movable cavity.

[0007] Preferably, the shrinking mechanism further includes a turntable: The inner side of the turntable is rotatably connected to the inner cavity of the first movable cavity, and multiple moving slots are opened on one side of the turntable. The outer side of the moving rod is slidably connected to the moving slot at the corresponding position.

[0008] Preferably, the retraction mechanism further includes a first connecting block and a third connecting block: The first connecting block is connected to a corresponding position on the outside of the turntable on one side, and a second connecting block is rotatably connected to one side of the first connecting block. An electric push rod is connected to one side of the second connecting block. One side of the third connecting block is connected to the other end of the electric push rod, and one side of the third connecting block is connected to a first rotating rod. The other end of the first rotating rod is rotatably connected to a corresponding position inside the first movable cavity.

[0009] Preferably, the retraction mechanism further includes a first limiting block: Multiple first limiting blocks are connected at one end to a corresponding position moving rod. Multiple first limiting grooves are provided in the inner cavity of the first movable cavity. The outer side of the first limiting block is slidably connected to the corresponding position first limiting groove.

[0010] Preferably, the drive mechanism includes a second helical gear and a drive motor: The inner side of the second helical gear is connected to the outer side of the second rotating rod, and the outer side of the second helical gear is meshed with the first helical gear. One end of the first helical gear is rotatably connected to the corresponding position in the first movable cavity. One side of the drive motor is connected to the top of the heating chamber via a fixing block. The inner cavity of the first movable cavity has a through hole. One end of the output shaft of the drive motor is connected to the other end of the first helical gear through the through hole in the inner cavity of the first movable cavity.

[0011] Preferably, the bonding mechanism includes a bonding block and a second telescopic rod: The outer side of the bonding block is slidably connected to the second movable cavity at the corresponding position. A through groove is provided on one side of the second movable cavity. One end of the bonding block extends to the outside through the through groove in the inner cavity of the second movable cavity. The outer end of the bonding block is attached to the corresponding position on the outside of the second rotating rod. Two second telescopic rods are connected at one end to the corresponding position on the other end of the bonding block, and the other end of the second telescopic rod is connected to the second movable cavity at the corresponding position. A second spring is sleeved on the outside of the second telescopic rod, with one end of the second spring connected to the corresponding position on one end of the bonding block and the other end of the second spring connected to the second movable cavity at the corresponding position.

[0012] Preferably, the bonding mechanism further includes a second limiting block: Two second limiting blocks are connected at one end to both sides of the fitting block. The second limiting groove is provided on both sides of the inner cavity of the second movable cavity. The outer side of the second limiting block is slidably connected to the corresponding second limiting groove.

[0013] Preferably, the limiting mechanism includes a linear module, a first pressing block, and a connecting rod: The bottom of the linear module is connected to the third movable cavity, and multiple mounting seats are installed on one side of the linear module, with a first mounting plate connected to one side of each mounting seat. Multiple first extrusion blocks are connected to corresponding positions on one side of a first mounting plate, and a second extrusion block is attached to one side of each first extrusion block. Furthermore, a fourth mounting plate is connected to one end of each of the multiple second extrusion blocks. Multiple connecting rods are connected at one end to the corresponding position on the top of the fourth mounting plate. The inner cavity of the third movable cavity has multiple through holes. The other end of the connecting rod extends to the outside through the through holes in the inner cavity of the third movable cavity. The outer end of the connecting rod is connected to a roller, and the outer side of the roller is in contact with the corresponding position in the inner cavity of the heating chamber.

[0014] Preferably, the limiting mechanism further includes a stepper motor: One end of the stepper motor output shaft is connected to one end of the linear module, and the other end of the stepper motor is connected to a third mounting plate. One side of the third mounting plate is connected to the third movable cavity.

[0015] Preferably, the limiting mechanism further includes a second mounting plate: Two second mounting plates are connected to the corresponding positions on the outside of the fourth mounting plate on one side. A first telescopic rod is connected to one side of the second mounting plate. The other end of the first telescopic rod is connected to the corresponding position inside the third movable cavity. A first spring is sleeved on the outside of the first telescopic rod. One end of the first spring is connected to one side of the second mounting plate, and the other end of the first spring is connected to the corresponding position inside the third movable cavity.

[0016] 1. In this invention, a retraction mechanism is provided. The extension and retraction of the electric push rod drives the linkage between the first connecting block and the second connecting block to rotate the turntable. The moving groove on the turntable pushes the moving rod and the moving block to move synchronously along the radial direction of the second rotating rod, so that each moving block forms multi-point uniform support for the second rotating rod from the outer periphery. When the second rotating rod tends to deviate due to bearing wear, the moving blocks apply radial constraint force to the second rotating rod from multiple directions, effectively suppressing the radial deviation and shaking of the second rotating rod, so that the shelf always maintains a stable operating state, avoiding jamming and abnormal noise caused by spindle deviation, and improving the uniformity of food heating and the reliability of equipment operation.

[0017] 2. In this invention, by setting up a bonding mechanism, the bonding block is always bonded to the outside of the second rotating rod under the elastic force of the second spring, which helps to fix the position of the moving block, so that the moving block and the second rotating rod always maintain a stable bonding state. This provides a continuous auxiliary fixing force for the shrinking mechanism to support the second rotating rod. At the same time, the second spring continuously provides a stable elastic clamping force, which can effectively compensate for the dimensional changes and fit gap fluctuations caused by thermal expansion under long-term high-temperature operation. It prevents the decrease in bonding accuracy and the attenuation of support force caused by overheating, and ensures that the moving block will not loosen or shift due to vibration during long-term operation. This further enhances the stability of the second rotating rod and extends the service life of the equipment.

[0018] 3. In this invention, by setting a limiting mechanism, the stepper motor drives the linear module to operate, the mounting base moves along the linear module and drives the first mounting plate and the first extrusion block to move synchronously, the first extrusion block extrudes the second extrusion block to move upward, thereby pushing the fourth mounting plate and the connecting rod to move outward of the third movable cavity, the connecting rod drives the roller to move and fit against the inner wall of the heating chamber, forming a limit on the relative position between the shelf and the heating chamber, effectively preventing the shelf from shaking due to uneven load or bearing wear of the second rotating rod during rotation, ensuring uniform heating of food during the heating process, improving product quality and long-term reliability of equipment operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the disassembled three-dimensional structure of the present invention; Figure 3 This is a cross-sectional three-dimensional structural diagram of the shrinkage mechanism in this invention; Figure 4 for Figure 3 Enlarged 3D structural diagram of part A; Figure 5 This is a cross-sectional three-dimensional structural diagram of the bonding mechanism in this invention; Figure 6 for Figure 5 Enlarged 3D structural diagram of part B; Figure 7 This is a cross-sectional three-dimensional structural diagram of the limiting mechanism in this invention; Figure 8 for Figure 7 Enlarged 3D structural diagram of part C.

[0020] Legend: 1. Heating chamber; 2. Shelf; 3. Drive mechanism; 301. Drive motor; 302. First helical gear; 303. Second helical gear; 4. Retraction mechanism; 401. Moving block; 402. Moving rod; 403. Moving groove; 404. Turntable; 405. First connecting block; 406. Second connecting block; 407. Third connecting block; 408. First rotating rod; 409. First limiting block; 410. First limiting groove; 411. Electric push rod; 5. Limiting mechanism; 501. Linear module; 502. Mounting base; 503. 504. First extrusion block; 505. Second extrusion block; 506. Connecting rod; 507. Roller; 508. Second mounting plate; 509. First telescopic rod; 510. First spring; 511. Stepper motor; 512. Third mounting plate; 513. Fourth mounting plate; 6. Adhesion mechanism; 601. Adhesion block; 602. Second telescopic rod; 603. Second spring; 604. Second limiting block; 605. Second limiting groove; 7. Second rotating rod; 8. First movable cavity; 9. Second movable cavity; 10. Third movable cavity. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-4 The present invention provides a technical solution: a rotary oven for food production, comprising a heating chamber 1, a drive mechanism 3, a shrinking mechanism 4, and a bonding mechanism 6. The drive mechanism 3 is located on the top of the heating chamber 1. A first movable cavity 8 is opened on one side of the heating chamber 1. A second rotating rod 7 is rotatably connected to the inner cavity of the first movable cavity 8. A through hole is opened in the inner cavity of the first movable cavity 8. The other end of the second rotating rod 7 extends into the inner cavity of the heating chamber 1 through the through hole opened in the inner cavity of the first movable cavity 8. A shelf 2 is connected to the other end of the second rotating rod 7. The shrinking mechanism 4 is disposed in the first movable cavity 8. The shrinking mechanism 4 includes multiple moving blocks 401. A moving rod 402 is connected to one side of the moving block 401. The moving block 401 is disposed at the corresponding position outside the second rotating rod 7. A second movable cavity 9 is opened on one side of the moving block 401. The moving rod 402 moves the moving block 401 at the corresponding position in the first movable cavity 8. The fitting mechanism 6 is located in the second movable cavity 9 at the corresponding position, and a third movable cavity 10 is opened on one side of the shelf 2. A limit mechanism 5 is provided in the third movable cavity 10. The shrinkage mechanism 4 also includes a turntable 404: The inner side of the turntable 404 is rotatably connected to the inner cavity of the first movable cavity 8. Multiple moving slots 403 are provided on one side of the turntable 404. The outer side of the moving rod 402 is slidably connected to the moving slot 403 at the corresponding position. The retraction mechanism 4 also includes a first connecting block 405 and a third connecting block 407: The first connecting block 405 is connected to the corresponding position on the outside of the turntable 404 on one side, and the second connecting block 406 is rotatably connected to one side of the first connecting block 405. The electric push rod 411 is connected to one side of the second connecting block 406. One side of the third connecting block 407 is connected to the other end of the electric push rod 411. One side of the third connecting block 407 is connected to the first rotating rod 408. The other end of the first rotating rod 408 is rotatably connected to the corresponding position inside the first movable cavity 8. The retraction mechanism 4 also includes a first limiting block 409: Multiple first limiting blocks 409 are connected at one end to one end of a corresponding position moving rod 402. Multiple first limiting grooves 410 are provided in the inner cavity of the first movable cavity 8. The outer side of the first limiting block 409 is slidably connected to the corresponding position first limiting groove 410. The drive mechanism 3 includes a second helical gear 303 and a drive motor 301: The inner side of the second helical gear 303 is connected to the outer side of the second rotating rod 7. The outer side of the second helical gear 303 is meshed with the first helical gear 302. One end of the first helical gear 302 is rotatably connected to the corresponding position in the first movable cavity 8. One side of the drive motor 301 is connected to the top of the heating chamber 1 through a fixing block. The inner cavity of the first movable cavity 8 has a through hole. One end of the output shaft of the drive motor 301 is connected to the other end of the first helical gear 302 through the through hole in the inner cavity of the first movable cavity 8.

[0023] Specifically, when it is necessary to suppress the offset of the second rotating rod 7 caused by bearing wear, the electric push rod 411 is activated to extend and retract. The electric push rod 411 pushes the first connecting block 405 through the second connecting block 406, causing the turntable 404 to rotate around the second rotating rod 7. When the turntable 404 rotates, the spiral moving groove 403 on it pushes the moving rod 402 to move radially. The moving rod 402 drives the moving block 401 to move synchronously radially along the second rotating rod 7. Each moving block 401 moves synchronously from multiple directions on the outer periphery of the second rotating rod 7 to fit the surface of the second rotating rod 7. The radial position is automatically adjusted according to the actual diameter of the second rotating rod 7 to form a multi-point uniform radial constraint force. When it is necessary to adapt to the second rotating rod 7 of different sizes, the radial position of the moving block 401 can be adjusted by controlling the extension and retraction of the electric push rod 411 to adapt to the second rotating rod 7 of different diameters.

[0024] Please see Figures 5-6 The bonding mechanism 6 includes a bonding block 601 and a second telescopic rod 602. The outer side of the bonding block 601 is slidably connected to the second movable cavity 9 at the corresponding position. A through groove is provided on one side of the second movable cavity 9. One end of the bonding block 601 extends to the outside through the through groove in the inner cavity of the second movable cavity 9. The outer end of the bonding block 601 is attached to the corresponding position on the outside of the second rotating rod 7. Two second telescopic rods 602 are connected at one end to the corresponding position of the other end of the bonding block 601, and the other end of the second telescopic rod 602 is connected to the second movable cavity 9 at the corresponding position. A second spring 603 is sleeved on the outside of the second telescopic rod 602. One end of the second spring 603 is connected to the corresponding position of one end of the bonding block 601, and the other end of the second spring 603 is connected to the second movable cavity 9 at the corresponding position. The bonding mechanism 6 also includes a second limiting block 604: Two second limiting blocks 604 are connected at one end to both sides of the fitting block 601. The second movable cavity 9 has a second limiting groove 605 on both sides. The outer side of the second limiting block 604 is slidably connected to the corresponding second limiting groove 605.

[0025] Specifically, under the drive of the shrinking mechanism 4, the bonding block 601 in the bonding mechanism 6 moves and bonds to the outside of the second rotating rod 7, thus assisting in fixing the position of the moving block 401. Under the elastic force of the second spring 603, the bonding block 601 ensures that the moving block 401 and the second rotating rod 7 always maintain a stable bonding state. When the shrinking mechanism 4 drives the moving block 401 to move radially, the bonding block 601 adaptively bonds to the surface of the second rotating rod 7 under the action of the second spring 603, without affecting the movement of the moving block 401. After moving into place, it provides continuous auxiliary support force, ensuring that the moving block 401 will not loosen or shift due to vibration during long-term operation, further enhancing the stability of the second rotating rod 7.

[0026] Please see Figures 7-8 The limiting mechanism 5 includes a linear module 501, a first extrusion block 504, and a connecting rod 506. The bottom of the linear module 501 is connected to the third movable cavity 10. Multiple mounting seats 502 are installed on one side of the linear module 501, and a first mounting plate 503 is connected to one side of the multiple mounting seats 502. One side of a plurality of first extrusion blocks 504 is connected to a corresponding position on one side of a first mounting plate 503, and a second extrusion block 505 is attached to one side of the first extrusion block 504, and one end of a plurality of second extrusion blocks 505 is connected to a fourth mounting plate 513. One end of multiple connecting rods 506 is connected to the corresponding position on the top of the fourth mounting plate 513. Multiple through holes are opened in the inner cavity of the third movable cavity 10. The other end of the connecting rods 506 extends to the outside through the through holes opened in the inner cavity of the third movable cavity 10. A roller 507 is connected to the outer end of the connecting rods 506. The outer side of the roller 507 is in contact with the corresponding position in the inner cavity of the heating chamber 1. The limiting mechanism 5 also includes a stepper motor 511: One end of the output shaft of the stepper motor 511 is connected to one end of the linear module 501, and the other end of the stepper motor 511 is connected to the third mounting plate 512. One side of the third mounting plate 512 is connected to the third movable cavity 10. The limiting mechanism 5 also includes a second mounting plate 508: Two second mounting plates 508 are connected to the corresponding positions on the outside of the fourth mounting plate 513 on one side. A first telescopic rod 509 is connected to one side of the second mounting plate 508. The other end of the first telescopic rod 509 is connected to the corresponding position inside the third movable cavity 10. A first spring 510 is sleeved on the outside of the first telescopic rod 509. One end of the first spring 510 is connected to one side of the second mounting plate 508, and the other end of the first spring 510 is connected to the corresponding position inside the third movable cavity 10.

[0027] Specifically, when the shelf 2 carries food into the heating chamber 1 for rotational baking, the stepper motor 511 starts, driving the linear module 501 to operate. The linear module 501 adopts a screw and nut transmission structure. The stepper motor 511 drives the internal screw to rotate. The screw drives the nut seat and mounting seat 502 to move linearly along the linear guide rail through the threaded engagement. The first mounting plate 503 drives the first extrusion block 504 to move. The wedge engagement between the first extrusion block 504 and the second extrusion block 505 pushes the fourth mounting plate 513 and the connecting rod 506 to move out of the third movable cavity 10. The connecting rod 506 drives the roller 507 to extend and fit against the corresponding position on the inner wall of the heating chamber 1, limiting the relative position between the shelf 2 and the heating chamber 1, preventing the shelf 2 from shaking and tilting due to uneven load during rotation. When it is necessary to remove the shelf 2, the stepper motor 511 rotates in the opposite direction, and the roller 507 retracts into the third movable cavity 10 under the elastic force of the first spring 510.

[0028] Working principle: When it is necessary to suppress the offset of the second rotating rod 7 caused by bearing wear, the electric push rod 411 is activated to extend and retract. The electric push rod 411 pushes the first connecting block 405 through the second connecting block 406, causing the turntable 404 to rotate around the second rotating rod 7. When the turntable 404 rotates, the spiral moving groove 403 on it pushes the moving rod 402 to move radially. The moving rod 402 drives the moving block 401 to move synchronously radially along the second rotating rod 7. Each moving block 401 moves synchronously from multiple directions on the outer periphery of the second rotating rod 7 to the surface of the second rotating rod 7. The radial position is automatically adjusted according to the actual diameter of the second rotating rod 7 to form a multi-point uniform radial constraint force. Under the drive of the retraction mechanism 4, the bonding block 601 in the bonding mechanism 6 moves to bond to the outside of the second rotating rod 7, and the position of the moving block 401 is assisted in fixing. Under the elastic force of the second spring 603, the bonding block 601 causes the moving block 401 to move. The 01 and the second rotating rod 7 always maintain a stable fit. When the shrinking mechanism 4 drives the moving block 401 to move radially, the fitting block 601 adaptively fits the surface of the second rotating rod 7 under the action of the second spring 603, without affecting the movement of the moving block 401, and provides continuous auxiliary support force after moving into place. When the shelf 2 carries food into the heating chamber 1 for rotary baking, the stepper motor 511 starts and drives the linear module 501 to run. The mounting base 502 moves linearly along the linear module 501, and drives the first extrusion block 504 to move through the first mounting plate 503. The wedge-shaped cooperation between the first extrusion block 504 and the second extrusion block 505 pushes the fourth mounting plate 513 and the connecting rod 506 to move to the outside of the third active cavity 10. The connecting rod 506 drives the roller 507 to extend and fit against the corresponding position on the inner wall of the heating chamber 1, limiting the relative position between the shelf 2 and the heating chamber 1.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A rotary oven for food production, comprising a heating chamber (1), characterized in that, Also includes: A drive mechanism (3) is provided on the top of the heating chamber (1). A first movable cavity (8) is provided on one side of the heating chamber (1). A second rotating rod (7) is rotatably connected to the inner cavity of the first movable cavity (8). A through hole is provided in the inner cavity of the first movable cavity (8). The other end of the second rotating rod (7) extends into the inner cavity of the heating chamber (1) through the through hole in the inner cavity of the first movable cavity (8). A shelf (2) is connected to the other end of the second rotating rod (7). A shrinking mechanism (4) is provided in the first movable cavity (8). The shrinking mechanism (4) includes multiple moving blocks (401). A moving rod (402) is connected to one side of each moving block (401). The moving block (401) is located at the corresponding position outside the second rotating rod (7). A second movable cavity (9) is provided on one side of each moving block (401). The moving rod (402) moves the moving block (401) at the corresponding position in the first movable cavity (8). The fitting mechanism (6) is located in the second movable cavity (9) at the corresponding position. A third movable cavity (10) is provided on one side of the shelf (2). A limiting mechanism (5) is provided in the third movable cavity (10).

2. A rotary furnace for food production according to claim 1, characterized in that, The shrinking mechanism (4) further includes: Turntable (404), the inner side of the turntable (404) is rotatably connected to the inner cavity of the first movable cavity (8), and a plurality of movable slots (403) are provided on one side of the turntable (404), and the outer side of the movable rod (402) is slidably connected to the corresponding movable slot (403).

3. A rotary furnace for food production according to claim 2, characterized in that, The shrinking mechanism (4) further includes: The first connecting block (405) is connected to the corresponding position on the outside of the turntable (404) on one side, and the first connecting block (405) is rotatably connected to the second connecting block (406) on one side, and the second connecting block (406) is connected to the electric push rod (411) on one side. The third connecting block (407) is connected to the other end of the electric push rod (411) on one side, and a first rotating rod (408) is connected to one side of the third connecting block (407). The other end of the first rotating rod (408) is rotatably connected to the corresponding position in the first movable cavity (8).

4. A rotary furnace for food production according to claim 3, characterized in that, The shrinking mechanism (4) further includes: The first limiting block (409) has one end connected to one end of the corresponding position moving rod (402). The first active cavity (8) has multiple first limiting grooves (410) in its inner cavity. The outer side of the first limiting block (409) is slidably connected to the corresponding position first limiting groove (410).

5. A rotary furnace for food production according to claim 1, characterized in that, The drive mechanism (3) includes: The second helical gear (303) is connected to the outside of the second rotating rod (7) on its inner side. The second helical gear (303) is meshed with the first helical gear (302) on its outer side. One end of the first helical gear (302) is rotatably connected to the corresponding position in the first movable cavity (8). The drive motor (301) is connected to the top of the heating chamber (1) by a fixing block on one side. The first movable cavity (8) has a through hole. One end of the output shaft of the drive motor (301) is connected to the other end of the first helical gear (302) through the through hole in the first movable cavity (8).

6. A rotary furnace for food production according to claim 1, characterized in that, The bonding mechanism (6) includes: The bonding block (601) is slidably connected to the second movable cavity (9) at the corresponding position on the outside. A through groove is provided on one side of the second movable cavity (9). One end of the bonding block (601) extends to the outside through the through groove in the inner cavity of the second movable cavity (9). The bonding block (601) is located at the outer end and is attached to the corresponding position on the outside of the second rotating rod (7). The second telescopic rod (602) has one end connected to the corresponding position of the other end of the bonding block (601), and the other end of the second telescopic rod (602) is connected to the corresponding position of the second movable cavity (9). The second telescopic rod (602) is sleeved with a second spring (603) on the outside. One end of the second spring (603) is connected to the corresponding position of one end of the bonding block (601), and the other end of the second spring (603) is connected to the corresponding position of the second movable cavity (9).

7. A rotary furnace for food production according to claim 6, characterized in that, The bonding mechanism (6) further includes: The second limiting block (604) has one end connected to both sides of the bonding block (601). The second movable cavity (9) has a second limiting groove (605) on both sides. The outer side of the second limiting block (604) is slidably connected to the corresponding second limiting groove (605).

8. A rotary furnace for food production according to claim 1, characterized in that, The limiting mechanism (5) includes: A linear module (501) is connected at its bottom to a third movable cavity (10). A plurality of mounting seats (502) are installed on one side of the linear module (501), and a first mounting plate (503) is connected to one side of the plurality of mounting seats (502). The first extrusion block (504) has one side connected to the corresponding position on the side of the first mounting plate (503), and a second extrusion block (505) is attached to one side of the first extrusion block (504), and one end of the multiple second extrusion blocks (505) is connected to the fourth mounting plate (513). Connecting rod (506), one end of multiple connecting rods (506) is connected to the corresponding position on the top of the fourth mounting plate (513). The inner cavity of the third movable cavity (10) is provided with multiple through holes. The other end of the connecting rod (506) extends to the outside through the through hole in the inner cavity of the third movable cavity (10). The outer end of the connecting rod (506) is connected to a roller (507). The outer side of the roller (507) is attached to the corresponding position in the inner cavity of the heating chamber (1).

9. A rotary furnace for food production according to claim 8, characterized in that, The limiting mechanism (5) further includes: A stepper motor (511) has one end of its output shaft connected to one end of a linear module (501), and the other end of the stepper motor (511) is connected to a third mounting plate (512). One side of the third mounting plate (512) is connected to a third movable cavity (10).

10. A rotary furnace for food production according to claim 9, characterized in that, The limiting mechanism (5) further includes: The second mounting plate (508) has one side connected to the corresponding position on the outside of the fourth mounting plate (513). The second mounting plate (508) has a first telescopic rod (509) connected to one side. The other end of the first telescopic rod (509) is connected to the corresponding position inside the third movable cavity (10). The first telescopic rod (509) is sleeved with a first spring (510) on the outside. One end of the first spring (510) is connected to one side of the second mounting plate (508), and the other end of the first spring (510) is connected to the corresponding position inside the third movable cavity (10).

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