A double speed dough kettle

Abstract

The utility model discloses a double -speed and face the pot, including base, the front end of base is equipped with adjustable and face the pot, and the upper end of base is equipped with the installation storehouse, and the lower side of installation storehouse is rotatably connected with the stirring paddle, its characterized in that: still including the speed regulation mechanism, the speed regulation mechanism: it includes the main shaft, the auxiliary shaft, the fast gear, the slow gear, the main gear, the pinion and the big gear, the upper and lower inner wall of installation storehouse is rotatably connected with the main shaft, and the lower extreme of main shaft is fixedly connected with the upper end surface center of the axle body of stirring paddle upper end, and the middle part of main shaft is equipped with adjustable fast gear and slow gear through C shaped drive frame, the main gear is rotatably connected in the top wall of installation storehouse, and this double -speed and face the pot, through the gear drive structure design of speed regulation mechanism, need not rely on high -cost electric control system such as frequency conversion motor, can realize double -speed switching only through mechanical linkage, has the advantages such as convenient operation, transmission stability and low cost.

Description

Technical Field

[0001] This utility model relates to the field of instant noodle production technology, specifically a dual-speed dough kneading pot. Background Technology

[0002] In the instant noodle production process, the dough kneading process is one of the key steps that determines the quality of the dough. The uniformity, gluten strength, and moisture content of the dough directly affect the effects of subsequent processes such as rolling and cutting. With the increasing automation of instant noodle production, higher requirements are placed on the mixing efficiency, speed adjustment flexibility, and ease of operation of dough kneading equipment. Traditional dough kneading equipment needs to be adapted to the different mixing speed requirements of different dough formulas. For example, there are significant differences in the speed and time required for mixing high-gluten flour and low-gluten flour. Therefore, dough kneading equipment with multi-speed adjustment function has become an important direction for industry development.

[0003] Currently, the speed control of dough mixing equipment on the market mainly relies on variable frequency motor control. Its workflow is as follows: the frequency of the motor's input power is adjusted by a frequency converter, causing the motor speed to change with the frequency (e.g., the motor speed increases as the frequency increases), thereby driving the mixing paddle to operate at the corresponding speed. This solution can achieve stepless speed adjustment, theoretically meeting the speed requirements of different mixing stages, and does not require manual replacement of mechanical parts, thus improving operational convenience to some extent. However, existing technologies have shortcomings. The purchase cost of variable frequency motors and supporting control systems (such as frequency converters and sensors) is significantly higher than that of traditional mechanical speed control components, especially for small and medium-sized production enterprises, resulting in a large initial investment. Electronic control systems operate in complex environments such as flour dust and humidity, making them prone to circuit failures or component aging. Maintenance requires the intervention of professional technicians, leading to high operating costs. Variable frequency motors may experience torque reduction at low speeds, resulting in insufficient driving force for the mixing paddle, especially when the dough has a high consistency, easily causing weak mixing and speed fluctuations, affecting the uniformity of dough mixing. Therefore, we propose a dual-speed dough mixing pot. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a dual-speed dough kneading pot. Through the gear transmission structure design of the speed adjustment mechanism, it can effectively solve the problems in the background technology without relying on high-cost electronic control systems such as variable frequency motors.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a dual-speed dough mixing pot, including a base, an adjustable dough mixing pot at the front end of the base, an installation chamber at the upper end of the base, a stirring paddle rotatably connected to the lower side of the installation chamber, and a speed adjustment mechanism.

[0006] Speed ​​control mechanism: It includes a main shaft, a secondary shaft, a fast gear, a slow gear, a main gear, a pinion, and a large gear. The main shaft is rotatably connected between the upper and lower inner walls of the installation chamber. The lower end of the main shaft is fixedly connected to the center of the upper end face of the shaft body at the upper end of the stirring paddle. The middle part of the main shaft is equipped with an adjustable fast gear and a slow gear through a C-shaped drive frame. The main gear is rotatably connected to the top wall of the installation chamber and is configured to cooperate with the fast gear. The rear end of the installation chamber is rotatably connected to a pinion through a secondary shaft. The pinion meshes with the main gear. The rear end of the C-shaped drive frame is equipped with a rotatable large gear that meshes with the slow gear. The large gear is fitted to the outer surface of the secondary shaft. Through the gear transmission structure design of the speed control mechanism, there is no need to rely on high-cost electronic control systems such as variable frequency motors. Dual-speed switching can be achieved only through mechanical linkage, which has the advantages of convenient operation, stable transmission, and low cost.

[0007] Furthermore, a control switch group is provided on the right side of the installation compartment. The input terminal of the control switch group is electrically connected to an external power source for stable control.

[0008] Furthermore, the speed regulating mechanism also includes mounting cylinders. Mounting cylinders are fixedly connected to the mounting holes opened in the middle of the fast gear, slow gear, and large gear. Rotary rings are provided at the right ends of the upper and lower sides of the C-shaped drive frame. The upper rotating ring is rotatably connected to the upper outer arc surface of the mounting cylinder in the middle of the fast gear, and the lower rotating ring is rotatably connected to the upper outer arc surface of the mounting cylinder in the middle of the slow gear. A connecting frame is fixedly connected to the rear side of the outer arc surface of the lower rotating ring. The ring at the rear end of the connecting frame is rotatably connected to the upper outer arc surface of the mounting cylinder in the middle of the large gear for easy adjustment.

[0009] Furthermore, the speed regulating mechanism also includes ribs, which are respectively disposed at the upper and lower ends of the outer arc surface of the main shaft and the lower end of the outer arc surface of the secondary shaft. The two ribs of the main shaft are symmetrically arranged vertically. The interior of the mounting cylinder is provided with symmetrically distributed rib grooves, which are configured to cooperate with the adjacent ribs on the upper side, mainly for driving the rotation of the main shaft or the secondary shaft.

[0010] Furthermore, the main gear is rotatably connected to the top wall of the mounting chamber via a rotating shaft. A motor is mounted on the upper side of the mounting chamber, and the output shaft of the motor is fixedly connected to the center of the upper end face of the rotating shaft. An electric cylinder is mounted on the upper side of the mounting chamber, and the telescopic end of the electric cylinder passes through the upper side wall of the mounting chamber and is fixedly connected to the upper side of the C-shaped drive frame. The input ends of the motor and the electric cylinder are electrically connected to the output end of the control switch group for stable driving.

[0011] Furthermore, the upper side of the installation chamber is provided with a protective shell, and the motor and electric cylinder are both located inside the protective shell, providing external protection for the motor and electric cylinder.

[0012] Furthermore, the upper side of the slow gear is provided with a limiting frame, and the bottom wall of the installation chamber is provided with a limiting slide post. The upper end of the limiting slide post is slidably connected to the limiting hole opened on the right side of the limiting frame. An auxiliary shaft is rotatably connected to the upper side of the installation chamber. The lower end of the auxiliary shaft is fixedly connected to the upper end face of the main shaft. The upper end of the auxiliary shaft penetrates the upper side wall of the protective shell. A pointer is provided on the front side of the upper end of the auxiliary shaft that is exposed on the outer arc face of the protective shell. A positioning pin is provided on the upper side of the protective shell. The pointer and the positioning pin are configured to indicate the position of the rib, rib groove, limiting frame and limiting slide post.

[0013] Furthermore, the front side of the base is provided with symmetrically distributed slide rails, and a kneading pot is slidably connected between two slide rails. The front side wall of the base has a strip-shaped opening, and the inner front wall of the base is provided with symmetrically distributed mounting plates. A lead screw is rotatably connected between two mounting plates, and a drive block is threadedly connected to the middle of the lead screw. The front end of the drive block passes through the strip-shaped opening and is fixedly connected to the rear end of the kneading pot. A motor is mounted on the upper side of the upper mounting plate. The output shaft of the motor is fixedly connected to the center of the upper end face of the lead screw. The input end of the motor is electrically connected to the output end of the control switch group to facilitate the lifting and lowering of the kneading pot.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This dual-speed dough kneading pot has the following advantages:

[0015] The speed control mechanism, through the setting of fast and slow gears on the main shaft, in conjunction with the transmission structure of the main gear, pinion, large gear, and countershaft, can realize the switching between high-speed and low-speed mixing of the stirring paddle. The design of the mounting cylinder, ribs, and rib grooves ensures stable transmission between the gears and the shaft. The C-shaped drive frame is linked with the electric cylinder, and the switching between fast and slow gear engagement can be completed with a single movement, avoiding gear interference. It is easy to operate and has stable transmission. The simple structure can realize dual-speed adjustable mixing, improving dough mixing efficiency and reducing the operating cost of the equipment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model from the right side;

[0018] Figure 3 This is an enlarged structural schematic diagram of point A of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention in cross-section on the right side;

[0020] Figure 5 This is an enlarged structural schematic diagram of section B of this utility model;

[0021] Figure 6This is a structural schematic diagram of the left side of the installation compartment of this utility model;

[0022] Figure 7 This is a partial structural schematic diagram of the speed regulating mechanism of this utility model;

[0023] Figure 8 This is an enlarged structural diagram of point C in this utility model;

[0024] Figure 9 This is a partial structural schematic diagram of the connecting frame of this utility model.

[0025] In the diagram: 1. Base, 2. Speed ​​control mechanism, 21. Main shaft, 22. Sub-shaft, 23. Rib, 24. Fast gear, 25. Slow gear, 251. Limiting frame, 26. Main gear, 27. Small gear, 28. Large gear, 29. Mounting cylinder, 291. Rib groove, 3. C-shaped drive frame, 31. Connecting frame, 4. Mounting chamber, 5. Motor, 6. Electric cylinder, 7. Auxiliary shaft, 8. Pointer, 9. Positioning pin, 10. Limiting slide column, 11. Slide rail, 12. Strip opening, 13. Drive block, 14. Lead screw, 15. Motor, 16. Mixing pot, 17. Control switch group, 18. Stirring paddle, 19. Protective shell. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-9This embodiment provides a technical solution: a dual-speed dough mixer, including a base 1, an adjustable dough mixer 16 at the front end of the base 1, an installation chamber 4 at the upper end of the base 1, a control switch group 17 on the right side of the installation chamber 4, the input end of the control switch group 17 being electrically connected to an external power source, a stirring paddle 18 rotatably connected to the lower side of the installation chamber 4, symmetrically distributed slide rails 11 on the front side of the base 1, the dough mixer 16 being slidably connected between two slide rails 11, a strip-shaped opening 12 on the front side wall of the base 1, symmetrically distributed mounting plates on the inner front side wall of the base 1, and a lead screw 14 rotatably connected between two mounting plates. The middle thread of 4 is connected to a drive block 13 (a bellows is provided between the upper side of the rear end of the drive block 13 and the lower side of the upper mounting plate, and between the lower side of the rear end of the drive block 13 and the upper side of the lower mounting plate; the lead screw 14 is located inside the bellows, and the bellows provides external protection for the lead screw 14). The front end of the drive block 13 passes through the strip opening 12 and is fixedly connected to the rear end of the mixing pot 16. A motor 15 is mounted on the upper side of the upper mounting plate. The output shaft of the motor 15 is fixedly connected to the center of the upper end face of the lead screw 14. The input end of the motor 15 is electrically connected to the output end of the control switch group 17. The motor 15 also includes a speed regulating mechanism 2.

[0028] Speed ​​regulating mechanism 2 includes a main shaft 21, a secondary shaft 22, a high-speed gear 24, a low-speed gear 25, a main gear 26, a pinion 27, and a large gear 28. The main shaft 21 is rotatably connected between the upper and lower inner walls of the installation chamber 4. The lower end of the main shaft 21 is fixedly connected to the center of the upper end face of the shaft of the agitator 18. The middle part of the main shaft 21 is provided with an adjustable high-speed gear 24 and a low-speed gear 25 via a C-shaped drive frame 3. The main gear 26 is rotatably connected to the top wall of the installation chamber 4 and is configured to cooperate with the high-speed gear 24. The rear end of the installation chamber 4 is rotatably connected to a pinion 27 via a secondary shaft 22. The pinion 27 meshes with the main gear 26. The rear end of the C-shaped drive frame 3 is provided with a rotatable large gear 28, which meshes with the low-speed gear 25. The speed regulating mechanism 2 also includes a mounting cylinder 29, which is fixedly connected to the mounting holes in the middle of the fast gear 24, slow gear 25, and large gear 28. The upper and lower right ends of the C-shaped drive frame 3 are provided with rotating rings. The upper rotating ring is rotatably connected to the upper outer arc surface of the mounting cylinder 29 in the middle of the fast gear 24, and the lower rotating ring is rotatably connected to the upper outer arc surface of the mounting cylinder 29 in the middle of the slow gear 25. A connecting frame 31 is fixedly connected to the rear side of the outer arc surface of the lower rotating ring. The ring at the rear end of the connecting frame 31 is rotatably connected to the upper outer arc surface of the mounting cylinder 29 in the middle of the large gear 28. The speed regulating mechanism 2 also includes ribs 23, which are respectively disposed on the outer arc surface of the main shaft 21. The lower ends and the lower end of the outer arc surface of the sub-shaft 22, the two ribs 23 of the main shaft 21 are symmetrically arranged vertically, and the interior of the mounting cylinder 29 is provided with symmetrically distributed rib grooves 291. The rib grooves 291 are all configured to cooperate with the adjacent ribs 23 on the upper side. The main gear 26 is rotatably connected to the top wall of the mounting chamber 4 through a rotating shaft. The upper side of the mounting chamber 4 is equipped with a motor 5, and the output shaft of the motor 5 is fixedly connected to the center of the upper end face of the rotating shaft. The upper side of the mounting chamber 4 is equipped with an electric cylinder 6, and the telescopic end of the electric cylinder 6 passes through the upper side wall of the mounting chamber 4 and is fixedly connected to the upper side of the C-shaped drive frame 3. The input ends of the motor 5 and the electric cylinder 6 are electrically connected to the output end of the control switch group 17. The upper side of the mounting chamber 4 is provided with a protective shell 19, and the motor 5 and the electric cylinder 6 are located inside the protective shell 19. The upper side of the slow gear 25 is provided with a limit bracket 251, and the bottom wall of the installation chamber 4 is provided with a limit slide post 10. The upper end of the limit slide post 10 is slidably connected to the limit hole opened on the right side of the limit bracket 251. The upper side of the installation chamber 4 is rotatably connected with an auxiliary shaft 7. The lower end of the auxiliary shaft 7 is fixedly connected to the upper end face of the main shaft 21. The upper end of the auxiliary shaft 7 penetrates the upper side wall of the protective shell 19. The upper end of the auxiliary shaft 7 is exposed on the outer arc face of the protective shell 19 and is provided with a pointer 8. The upper side of the protective shell 19 is provided with a positioning pin 9. The pointer 8 and the positioning pin 9 are set together. First, the dough ingredients are placed inside the kneading pot 16. Then, the control switch group 17 is operated to start the motor 15. The output shaft of the motor 15 drives the lead screw 14 to rotate. Because the drive block 13 is threadedly engaged with the lead screw 14,Furthermore, the drive block 13 is fixedly connected to the mixing pot 16, so the drive block 13 moves upward along the lead screw 14, thereby causing the mixing pot 16 to rise along the slide rail 11. Then, the control switch group 17 starts the motor 5. After the motor 5 starts, its output shaft drives the main gear 26 to rotate through the rotating shaft. When the C-shaped drive frame 3 is in the lower position, the mounting cylinder 29 of the fast gear 24 slides with the rib 23 of the main shaft 21 through the rib groove 291. At this time, the rib groove 291 inside the mounting cylinder 29 in the middle of the slow gear 25 and the rib groove 291 inside the mounting cylinder 29 in the middle of the large gear 28 are both far away from the rib 23 on their upper side, and the limiting frame 251 on the slow gear 25 and the limiting slide column 10 are in a sliding assembly state. Position 25 is relatively stationary. The main gear 26 directly meshes with the fast gear 24. Power is transmitted to the agitator 18 via the main shaft 21, achieving high-speed agitation. When the C-shaped drive frame 3 moves upward under the drive of the electric cylinder 6 (the telescopic end of the electric cylinder 6 is fixedly connected to the C-shaped drive frame 3, and the telescopic extension of the electric cylinder 6 is controlled by the control switch group 17), the mounting cylinder 29 of the slow gear 25 moves upward and meshes with the upper rib 23 through the rib groove 291. At the same time, the mounting cylinder 29 of the large gear 28 moves upward synchronously through the linkage of the connecting frame 31, and its internal rib groove 291 meshes with the rib 23 of the secondary shaft 22. Simultaneously, the mounting cylinder 29 of the fast gear 24 moves upward synchronously, and its internal rib groove 291 disengages from the main shaft 21. The two side ribs 23 are connected. At this time, the main gear 26 drives the small gear 27 to rotate. The small gear 27 drives the large gear 28 (the large gear 28 has more teeth than the small gear 27) through the countershaft 22. The large gear 28 then meshes with the slow gear 25 to form a reduction transmission, ultimately achieving low-speed stirring of the agitator 18. The front end of the C-shaped drive frame 3 is rotatably connected to the outer arc surface of the mounting cylinder 29 of the fast gear 24 and the slow gear 25. The rear end is linked to the mounting cylinder 29 of the large gear 28 through the connecting frame 31, ensuring that when switching speeds, only one movement is needed to complete the switching of the fast gear 24 disengaging and the slow gear 25 engaging, avoiding gear interference. The auxiliary shaft 7 rotates synchronously with the main shaft 21, and the pointer 8 points to the positioning pin 9 on the protective shell 19. The position of rib 23 is displayed visually. Since the fast gear 24 is identical to the small gear 27, and the slow gear 25 is identical to the large gear 28, when the fast gear 24 drives the main shaft 21 to rotate, the main gear 26 simultaneously meshes with the small gear 27, driving the secondary shaft 22 to rotate synchronously. That is, the main shaft 21 and the secondary shaft 22 rotate at the same speed (the same principle applies when the slow gear 25 and the large gear 28 drive the main shaft 21 and the secondary shaft 22 to rotate). When the pointer 8 points to the positioning pin 9, the central axis of the limiting hole at the right end of the limiting bracket 251 on the slow gear 25 coincides with the central axis of the limiting slide 10. Simultaneously, rib 23 and the adjacent upper and lower rib grooves 291 are in a horizontal state, allowing for speed adjustment.

[0029] The working principle of the dual-speed dough mixer provided by this utility model is as follows: First, the dough ingredients are placed inside the dough mixer 16. Then, the control switch group 17 starts the motor 15. The output shaft of the motor 15 drives the lead screw 14 to rotate, and the drive block 13 moves upward along the lead screw 14 (because the drive block 13 is fixedly connected to the dough mixer 16), realizing the rise of the dough mixer 16 along the slide rail 11. Subsequently, the control switch group 17 starts the motor 5. After the motor 5 starts, its output shaft drives the main gear 26 to rotate through the rotating shaft. When the C-shaped drive frame 3 is on the lower side, the mounting cylinder 29 of the fast gear 24 slides with the rib 23 of the main shaft 21 through the rib groove 291 (at this time, the rib groove 291 inside the mounting cylinder 29 of the slow gear 25 and the large gear 28...). The rib grooves 291 inside the mounting cylinder 29 in the middle are all far away from the ribs 23 on its upper side. The limiting bracket 251 on the slow gear 25 is in a sliding assembly state with the limiting slide column 10 (the position of the slow gear 25 is relatively stationary). The main gear 26 directly meshes with the fast gear 24. Power is transmitted to the stirring paddle 18 through the main shaft 21 to achieve high-speed stirring. When the C-shaped drive frame 3 moves upward, the mounting cylinder 29 of the slow gear 25 moves upward and meshes with the upper rib 23 through the rib grooves 291. At the same time, the mounting cylinder 29 of the large gear 28 moves upward synchronously through the linkage of the connecting frame 31, and its internal rib grooves 291 mesh with the ribs 23 of the secondary shaft 22. (At the same time, the mounting cylinder 29 of the fast gear 24 moves upward synchronously, and its internal rib grooves 291 mesh with the ribs 23 of the secondary shaft 22.) 1. The main gear 26 disengages from the two ribs 23 located on the upper side of the main shaft 21. At this time, the main gear 26 drives the small gear 27 to rotate. The small gear 27 drives the large gear 28 (the large gear 28 has more teeth than the small gear 27) through the secondary shaft 22. The large gear 28 then meshes with the slow gear 25 to form a reduction transmission, ultimately achieving low-speed stirring of the agitator 18. The telescopic end of the electric cylinder 6 is fixedly connected to the C-shaped drive frame 3. The telescopic end of the electric cylinder 6 is controlled by the control switch group 17 to drive the C-shaped drive frame 3 to move up and down. The front end of the C-shaped drive frame 3 is rotatably connected to the outer arc surface of the mounting cylinder 29 of the fast gear 24 and the slow gear 25. The rear end is linked to the mounting cylinder 29 of the large gear 28 through the connecting frame 31 to ensure that when switching speeds, only one movement is needed to complete the disengagement / slow speed of the fast gear 24. The switching of the high-speed gear 25 avoids gear interference. The auxiliary shaft 7 rotates synchronously with the main shaft 21. The pointer 8 points to the positioning pin 9 on the protective shell 19, visually indicating the current position of the rib 23. Since the high-speed gear 24 is identical to the pinion 27, and the slow-speed gear 25 is identical to the large gear 28, when the high-speed gear 24 drives the main shaft 21 to rotate, the main gear 26 simultaneously meshes with the pinion 27, driving the secondary shaft 22 to rotate synchronously. That is, the main shaft 21 and the secondary shaft 22 rotate at the same speed (the same applies when the slow-speed gear 25 and the large gear 28 drive the main shaft 21 and the secondary shaft 22 to rotate). When the pointer 8 points to the positioning pin 9, the central axis of the limiting hole at the right end of the limiting bracket 251 on the slow-speed gear 25 coincides with the central axis of the limiting slide 10.At the same time, rib 23 and the adjacent rib grooves 291 are in a horizontal state, at which point speed adjustment can be performed.

[0030] It is worth noting that the motor 5 disclosed in the above embodiments can be a YE2 series three-phase asynchronous motor, the electric cylinder 6 can be a model JACT50-500, the motor 15 can be a Y90S-4 three-phase asynchronous motor, and the control switch group 17 is provided with control buttons that correspond one-to-one with the motor 5, the electric cylinder 6 and the motor 15 and are used to control their switching.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A dual-speed dough mixer, comprising a base (1), wherein an adjustable dough mixer (16) is provided at the front end of the base (1), and an installation chamber (4) is provided at the upper end of the base (1), and a stirring paddle (18) is rotatably connected to the lower side of the installation chamber (4), characterized in that: It also includes a speed regulating mechanism (2); Speed ​​regulating mechanism (2): It includes a main shaft (21), a secondary shaft (22), a fast gear (24), a slow gear (25), a main gear (26), a pinion (27), and a large gear (28). The main shaft (21) is rotatably connected between the upper and lower inner walls of the mounting chamber (4). The lower end of the main shaft (21) is fixedly connected to the center of the upper end face of the shaft of the stirring paddle (18). The middle part of the main shaft (21) is provided with an adjustable fast gear (24) and a slow gear (25) through a C-shaped drive frame (3). 5) The main gear (26) is rotatably connected to the top wall of the installation chamber (4). The main gear (26) is configured to cooperate with the fast gear (24). The rear end of the installation chamber (4) is rotatably connected to the small gear (27) through the secondary shaft (22). The small gear (27) is meshed with the main gear (26). The rear end of the C-shaped drive frame (3) is provided with a rotatable large gear (28). The large gear (28) is meshed with the slow gear (25). The large gear (28) is installed in cooperation with the outer surface of the secondary shaft (22).

2. The dual-speed dough kneading pan according to claim 1, characterized in that: The right side of the installation compartment (4) is provided with a control switch group (17), and the input end of the control switch group (17) is electrically connected to an external power source.

3. The dual-speed dough kneading pan according to claim 2, characterized in that: The speed regulating mechanism (2) also includes a mounting cylinder (29). The mounting cylinder (29) is fixedly connected to the mounting holes opened in the middle of the fast gear (24), slow gear (25) and large gear (28). The upper and lower right sides of the C-shaped drive frame (3) are provided with rotating rings. The upper rotating ring is rotatably connected to the upper outer arc surface of the mounting cylinder (29) in the middle of the fast gear (24). The lower rotating ring is rotatably connected to the upper outer arc surface of the mounting cylinder (29) in the middle of the slow gear (25). A connecting frame (31) is fixedly connected to the rear side of the outer arc surface of the lower rotating ring. The ring set at the rear end of the connecting frame (31) is rotatably connected to the upper outer arc surface of the mounting cylinder (29) in the middle of the large gear (28).

4. A dual-speed dough kneading pan according to claim 3, characterized in that: The speed regulating mechanism (2) also includes ribs (23), which are respectively set at the upper and lower ends of the outer arc surface of the main shaft (21) and the lower end of the outer arc surface of the secondary shaft (22). The two ribs (23) of the main shaft (21) are symmetrically arranged. The interior of the mounting cylinder (29) is provided with symmetrically distributed rib grooves (291), and the rib grooves (291) are all configured to cooperate with the adjacent ribs (23) on the upper side.

5. A dual-speed dough kneading pan according to claim 3, characterized in that: The main gear (26) is rotatably connected to the top wall of the mounting chamber (4) via a rotating shaft. A motor (5) is mounted on the upper side of the mounting chamber (4). The output shaft of the motor (5) is fixedly connected to the center of the upper end face of the rotating shaft. An electric cylinder (6) is mounted on the upper side of the mounting chamber (4). The telescopic end of the electric cylinder (6) passes through the upper side wall of the mounting chamber (4) and is fixedly connected to the upper side of the C-shaped drive frame (3). The input ends of the motor (5) and the electric cylinder (6) are both electrically connected to the output end of the control switch group (17).

6. A dual-speed dough kneading pan according to claim 5, characterized in that: The upper side of the installation chamber (4) is provided with a protective shell (19), and the motor (5) and electric cylinder (6) are both located inside the protective shell (19).

7. A dual-speed dough kneading pan according to claim 6, characterized in that: The upper side of the slow gear (25) is provided with a limiting frame (251), and the bottom wall of the installation chamber (4) is provided with a limiting slide (10). The upper end of the limiting slide (10) is slidably connected to the limiting hole opened on the right side of the limiting frame (251). The upper side of the installation chamber (4) is rotatably connected with an auxiliary shaft (7). The lower end of the auxiliary shaft (7) is fixedly connected to the upper end face of the main shaft (21). The upper end of the auxiliary shaft (7) penetrates the upper side wall of the protective shell (19). The upper end of the auxiliary shaft (7) is exposed on the outer arc face of the protective shell (19) and a pointer (8) is provided on the front side. The upper side of the protective shell (19) is provided with a positioning pin (9). The pointer (8) and the positioning pin (9) are set together.

8. A dual-speed dough kneading pan according to claim 1, characterized in that: The front side of the base (1) is provided with symmetrically distributed slide rails (11), and a dough mixing pot (16) is slidably connected between the two slide rails (11). The front side wall of the base (1) is provided with a strip-shaped opening (12). The front inner wall of the base (1) is provided with symmetrically distributed mounting pieces. A lead screw (14) is rotatably connected between the two mounting pieces. A drive block (13) is threadedly connected to the middle of the lead screw (14). The front end of the drive block (13) passes through the strip-shaped opening (12) and is fixedly connected to the rear end of the dough mixing pot (16). A motor (15) is installed on the upper side of the upper mounting piece. The output shaft of the motor (15) is fixedly connected to the center of the upper end face of the lead screw (14). The input end of the motor (15) is electrically connected to the output end of the control switch group (17).

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