A vertical and flat machine driven obliquely

Abstract

The application relates to the technical field of vertical dough mixers, and discloses a vertical dough mixer driven in a slanting direction, a driving mechanism of which is arranged in a body and transmits power to a driving head through a driving shaft extending in a slanting direction, and a food processing execution member extends into a dough basin from above in a slanting direction; when the food processing execution member rotates in a viscous dough, a reaction force exerted by the dough is transmitted to the driving head through the food processing execution member and then dispersed to the whole vertical dough mixer through the slanting driving shaft; since the vertical dough mixer does not have a liftable movable cantilever, the reaction force cannot easily induce structural gap displacement, thereby solving the problem that the existing vertical dough mixer is prone to shaking during work.

Description

Technical Field

[0001] This invention relates to the field of vertical dough mixer technology, and particularly to a vertical dough mixer with inclined drive. Background Technology

[0002] Vertical dough mixers typically consist of a main body, a drive mechanism, and a mixing bowl. The drive mechanism layout mainly falls into two categories. The first type features a top-mounted vertical drive with a dough hook, where the drive structure is positioned above the mixing bowl, and the dough hook is vertically mounted inside the bowl from top to bottom. The drive mechanism is a planetary gear system, and the dough hook achieves kneading and rolling functions through the rotation and revolution of the planets. Because its drive arm is located above the mixing bowl, it usually presents the following problems: (1) Obstructing the view; the cantilever obstructs the operator's view. (2) Cantilever swaying: When picking up and putting down the basin, the drive cantilever needs to be raised. The drive cantilever is designed as a movable connection mechanism, so it will sway during operation, especially when the load increases, the swaying is more serious. (3) The gearbox connecting shaft is located above the mixing bowl. When the sealing ring ages, the gearbox will leak oil, which can easily contaminate the mixing bowl. That is, the drive structure is located below the mixing bowl, and the kneading hook is located from bottom to top in the center of the mixing bowl. The drive shaft and the kneading hook rotate on the concentric axis of the mixing bowl. The kneading hook is difficult to knead the dough effectively and is only suitable for small-capacity mixing bowls. Its kneading efficiency is low. Summary of the Invention

[0003] The main objective of this invention is to provide a vertical dough mixer with an oblique drive, which aims to improve upon the shortcomings of the prior art and solve the problem that existing vertical dough mixers are prone to shaking during operation.

[0004] To achieve the above objectives, the present invention proposes a vertical dough mixer with oblique drive, comprising a body having a base and a vertical part, the base and the vertical part cooperating to form an L-shaped structure; a dough mixing bowl movably disposed on the base of the body; a drive mechanism installed within the body; a drive head installed on the vertical part of the body and located above the dough mixing bowl; and a food processing actuator detachably connected to the drive head, the food processing actuator extending obliquely into the inner cavity of the dough mixing bowl from above; wherein, the drive mechanism includes a drive assembly and a drive shaft extending obliquely relative to the vertical part, one end of the drive shaft being connected to the drive assembly, and the other end of the drive shaft being connected to the drive head, the drive assembly driving the food processing actuator to rotate around the axis of the drive head via the drive shaft and the drive head.

[0005] Optionally, the drive assembly includes: a motor installed within the upright portion; a reduction gearbox installed within the upright portion and connected to the motor, with the output end of the reduction gearbox connected to the drive shaft; a secondary reduction gearbox installed below the base; and a transmission rod installed within the upright portion, with its upper end connected to the reduction gearbox and its lower end connected to the secondary reduction gearbox. The motor drives the reduction gearbox, and the reduction gearbox synchronously drives the drive shaft and the transmission rod, causing the food processing actuator to rotate around the axis of the drive head.

[0006] Optionally, the vertical dough mixer further includes a basin drive mechanism, which is mounted on the base, connected to the auxiliary gearbox, and connected to the dough mixing basin. The basin drive mechanism includes: a fixed frame mounted on the base; a first bearing mounted inside the fixed frame; a second bearing mounted inside the fixed frame; and a turntable, which is T-shaped, with a turntable shaft at its lower part and multiple locking pins on its surface. The turntable shaft extends into the fixed frame and cooperates with the first and second bearings, and is connected to the auxiliary gearbox. The dough mixing basin has multiple locking holes, each corresponding to one of the locking pins.

[0007] Optionally, the drive head includes: a bushing fitted around the outer periphery of the drive shaft; a locking sleeve fitted around the outer periphery of the bushing; a guide ring movably mounted around the outer periphery of the locking sleeve, the guide ring having a guide hole; a retaining ring mounted on the locking sleeve, and the retaining ring slidingly engaging with the guide ring; an elastic element, one end of which is connected to the guide ring, and the other end of which is connected to the gearbox; a guide post, at least a portion of which passes through the guide hole, and one end of which is fixed to the gearbox; the vertical dough mixer has an initial state and a working state; when the vertical dough mixer is in the initial state, the elastic element pulls the guide ring, the guide ring pushes the retaining ring, and the retaining ring drives the locking sleeve and the bushing to slide upward along the drive shaft, so that the drive head is in a retracted state; when the vertical dough mixer is in the working state, the elastic element is in an extended state, and the guide ring, the guide post, and the elastic element are in a stationary state, the drive shaft, the bushing, the locking sleeve, and the retaining ring rotate synchronously.

[0008] Optionally, the inner hole of the bushing is a polygonal hole, and the cross-section of the drive shaft is polygonal. The cross-sectional dimensions of the inner hole of the bushing are adapted to the cross-sectional dimensions of the drive shaft. The bushing contains an upper cone, a lower cone, and an inner ring. The upper cone is located in the upper region of the inner wall of the bushing, the lower cone is located in the lower region of the inner wall of the bushing, and the inner ring is located in the middle region of the inner wall of the bushing. The outer wall of the bushing contains an outer ring and a retaining ring. The outer ring is located in the middle region of the outer wall of the bushing, and the retaining ring is located at the top of the outer wall of the bushing.

[0009] Optionally, the locking sleeve has an upper locking ring and a lower locking rib; the upper locking ring is disposed in the upper region of the inner ring of the locking sleeve; multiple lower locking ribs are provided, and the multiple lower locking ribs are obliquely disposed in the lower region of the inner ring of the locking sleeve; wherein, the outer ring of the sleeve, the outer wall of the bushing, and the retaining ring cooperate to define a retaining groove, at least a portion of the upper locking ring is located in the retaining groove, and the upper locking ring can move in the retaining groove along the axial direction of the drive shaft; the lower locking rib cooperates with the food processing actuator for engagement.

[0010] Optionally, the food processing actuator has a connecting end, the connecting end comprising: a hook cone with a hook end face at one end; a hook flange, the other end of the hook cone being connected to the hook flange; multiple hook ribs spaced apart on the outer ring surface of the hook flange; and a first rib limiter disposed on the outer ring surface of the hook flange and connected to the hook ribs.

[0011] Optionally, the gearbox includes a worm, a worm wheel, a spur gear, an idler spur gear, an idler helical gear, and a drive helical gear. The worm is connected to the output shaft of the motor; the worm wheel meshes with the worm; the spur gear is coaxially arranged with the worm wheel and connected to the worm wheel via a transmission shaft; the idler spur gear meshes with the spur gear; the idler helical gear is coaxially arranged with the idler spur gear and fixedly connected; the drive helical gear meshes with the idler helical gear, and the drive helical gear is fixedly connected to the upper end of the drive shaft. The gearbox further includes a housing, a push bearing, an upper drive bearing, and a lower drive bearing. The push bearing is disposed on the top surface of the helical gear and abuts against the inner top wall of the housing, thereby limiting the upward displacement of the drive shaft and the helical gear. The upper drive bearing is embedded in an annular groove of the housing and is sleeved on the drive shaft, abutting against the helical gear. The lower drive bearing is embedded in an annular groove of the housing, and the lower drive bearing and the upper drive bearing are spaced apart. Both the lower drive bearing and the upper drive bearing are sleeved on the drive shaft, and the upper drive bearing and the lower drive bearing are used to limit the radial displacement of the drive shaft and the helical gear. The gearbox further includes a first helical gear, a second helical gear, a transmission sleeve, an upper bearing, a lower bearing, and a pusher bearing; the first helical gear is coaxially arranged with and connected to the spur gear; the second helical gear is horizontally arranged and meshes with the first helical gear; the transmission sleeve is connected to the housing, and the transmission sleeve has a through cavity; the upper bearing is located at the upper end of the transmission sleeve; the lower bearing is located at the lower end of the transmission sleeve; and the cavity pusher bearing is located below the second helical gear. The transmission rod passes through the cavity of the transmission sleeve. The upper end of the transmission rod passes through the upper bearing and the rod push bearing in sequence and is fixedly connected to the second helical gear. The lower end of the transmission rod passes through the lower bearing and is connected to the auxiliary reduction gearbox.

[0012] Optionally, the auxiliary reduction gearbox includes: a front wheel, fixed to the lower end of the transmission rod; a central shaft, fixed to the base; a central frame, fixedly connected to the base and located below the central shaft for supporting the central shaft; a central wheel, having an upper central wheel and a lower central wheel; the central wheel is sleeved on the central shaft via a first wheel bearing and a second wheel bearing; a front belt, sleeved on the outer periphery of the front wheel and the lower central wheel; a final wheel, fixedly connected to the turntable shaft; and a final belt, sleeved on the outer periphery of the upper central wheel and the final wheel.

[0013] Optionally, the mixing basin includes a basin body, a basin rim, and a basin bottom. The basin rim is located at the top of the basin body; the basin bottom is located at the bottom of the basin body. The central area of ​​the basin bottom rises upward to form a boss, and the outer edge area of ​​the basin bottom extends outward in a horizontal direction to form an annular portion. A plurality of the locking holes are formed on the annular portion. The vertical dough mixer also includes a basin lid that covers the opening of the dough mixing basin; wherein, the basin lid is provided with a mounting post and a feed inlet; the side wall of the main body is provided with a mounting hole and a cover switch; when the mounting post is inserted into the mounting hole, the cover switch is triggered to connect the power supply.

[0014] Beneficial effects: The inclined-drive vertical dough mixer proposed in this invention includes a main body, a dough mixing bowl, a drive mechanism, a drive head, and a food processing actuator. The main body has a base and a vertical part, which cooperate to form an L-shaped structure. The dough mixing bowl is movably disposed on the base of the main body. The drive mechanism is installed in the main body. The drive head is installed on the vertical part of the main body and is located above the dough mixing bowl. The food processing actuator is detachably connected to the drive head, and the food processing actuator extends obliquely into the inner cavity of the dough mixing bowl from above. The drive mechanism includes a drive assembly and a drive shaft that extends obliquely relative to the vertical part. One end of the drive shaft is connected to the drive assembly, and the other end of the drive shaft is connected to the drive head. The drive assembly drives the food processing actuator to rotate around the axis of the drive head through the drive shaft and the drive head. In this design, the drive mechanism is built into the main body, and power is transmitted to the drive head through an obliquely extending drive shaft. The food processing actuator extends obliquely from above the mixing bowl. When the food processing actuator rotates in the viscous dough, the reaction force exerted by the dough is transmitted to the drive head through the food processing actuator, and then distributed to the entire vertical dough mixer via the oblique drive shaft. Since the vertical dough mixer in this application has no movable cantilever that can be raised or lowered, this reaction force is less likely to induce structural gap displacement, thus solving the problem of wobbling that occurs easily in existing vertical dough mixers during operation. Secondly, the food processing actuator and the drive head are detachably connected. The mixing bowl can be picked up and put down simply by disassembling the food processing actuator. In contrast, the drive cantilever in traditional vertical dough mixers is a movable part that needs to be raised and lowered when picking up and putting down the mixing bowl. Insufficient rigidity leads to obvious wobbling under load. The above-mentioned structural design in this application ensures that the entire vertical dough mixer remains stable even under conditions of large-capacity, high-viscosity dough. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is an exploded view of the overall structure of the vertical dough mixer in this invention; Figure 2 This is a schematic front sectional view of the vertical dough mixer in this invention; Figure 3 This is a 3D schematic diagram of the initial position of the driving head in this invention; Figure 4 This is a 3D schematic diagram of the working position of the drive head in this invention; Figure 5 This is a 3D exploded view of the driving head in this invention; Figure 6 This is a cross-sectional schematic diagram of the driving head in this invention; Figure 7 for Figure 6 3D sectional view of point A in the middle; Figure 8 for Figure 6 3D sectional view of point B in the middle; Figure 9 This is a partial 3D perspective view of the driving head in this invention; Figure 10 This is a cross-sectional schematic diagram of the bushing in this invention; Figure 11 This is a 3D schematic diagram of the locking sleeve in this invention; Figure 12 This is a 3D schematic diagram of the drive shaft in this invention; Figure 13 This is a schematic diagram of the structure of the dough hook end in this invention; Figure 14 This is a 3D schematic diagram of the mixing basin in this invention; Figure 15 This is a cross-sectional schematic diagram of the mixing bowl and meat mincing knife in the present invention when they are in working state 1. Figure 16 This is a cross-sectional view of the mixing bowl and meat mincing knife in the present invention when they are in working state 2: Figure 17 This is a cross-sectional view of the mixing bowl and meat mincing knife in the present invention when they are in working state 3. Figure 18 This is one of the transmission diagrams of the vertical dough mixer in this invention; Figure 19 This is the second schematic diagram of the transmission of the vertical dough mixer in this invention; Figure 20 This is the third schematic diagram of the transmission of the vertical dough mixer in this invention; Figure 21 This is a 3D cross-sectional schematic diagram of the basin driving mechanism in this invention; Figure 22 This is a schematic diagram showing the installation location of the electronic control unit in this invention; Figure 23 This is a schematic diagram of the connection of the electronic control unit in this invention.

[0017] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.

[0018] 1. Body; 11. Drive shaft; 111. Shaft body; 112. Lower shaft taper; 113. Shaft flange; 114. Shaft end face; 115. Upper shaft end; 12. Mounting hole; 13. Cover switch; 14. Meat grinder interface; 15. Guide frame; 16. Electrical control unit; 161. Power module; 162. Timing module; 163. Speed ​​control module; 17. Basin switch; 2. Mixing bowl; 21. Bowl edge; 22. Bowl body; 23. Bowl bottom; 24. Lock hole; 25. Bowl lid; 251. Mounting post; 252. Feed inlet; 26. Mixing hook; 261. Hook end; 262. Hook end face; 263. Hook cone; 264. Hook flange; 265. Hook rib; 266. First rib limiter; 27. Stirring paddle; 271. Paddle end; 28. Beating stick; 281. Stick end; 29. ​​Meat grinder; 291. Knife end; 292. Straight knife; 293. Curved knife; 294. Cylindrical; 295. Conical-rhomboid; 3. Drive head; 31. Bushing; 311. Upper sleeve taper; 312. Inner sleeve ring; 313. Lower sleeve taper; 314. Outer sleeve ring; 315. Snap ring; 32. Locking sleeve; 321. Upper locking ring; 322. Lower locking rib; 323. Second rib limiter; 33. Elastic element; 331. Guide post; 332. Guide ring; 333. Guide hole; 334. Snap ring; 4. Base; 41. Motor; 42. Gearbox; 421. Worm gear; 422. Worm; 423. Spur gear; 424. Inertial spur gear; 425. Inertial helical gear; 426. Drive helical gear; 427. Drive upper bearing; 428. Drive lower bearing; 429. Drive push bearing; 43. Transmission rod; 431. Upper end of rod; 432. Lower end of rod; 44. First helical gear; 441. Second helical gear; 442. Rod push bearing; 443. Transmission sleeve; 444. Upper shaft 445. Lower bearing; 45. Auxiliary gearbox; 451. Front wheel; 452. Front belt; 453. Middle wheel; 454. Middle-lower wheel; 455. Middle-upper wheel; 456. Central axle; 457. Central frame; 458. First wheel bearing; 459. Second wheel bearing; 46. Pan drive mechanism; 461. End belt; 462. End wheel; 463. Fixed frame; 464. First bearing; 465. Second bearing; 466. Turntable; 467. Turntable shaft; 468. Locking pin; 5. Establish a ministry. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0020] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0021] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0022] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0023] Vertical dough mixers typically consist of a main body, a drive mechanism, and a mixing bowl. The drive mechanism's layout falls into two main categories. The first type features a top-mounted vertical drive for the food processing actuator, where the drive structure is positioned above the mixing bowl, and the food processing actuator is vertically positioned inside the bowl from top to bottom. The drive mechanism is a planetary gear system, and the food processing actuator achieves the kneading and mixing functions through planetary rotation and revolution. Because its drive arm is located above the mixing bowl, it usually presents the following problems: (1) Obstructing the view; the cantilever obstructs the operator's view. (2) Cantilever swaying: When picking up and putting down the basin, the drive cantilever needs to be raised. The drive cantilever is designed as a movable connection mechanism, so it will sway during operation, especially when the load increases, the swaying is more serious. (3) The gearbox connecting shaft is located above the mixing bowl. When the sealing ring ages, the gearbox will leak oil, which can easily contaminate the mixing bowl. That is, the drive structure is located below the mixing bowl, and the food processing actuator is located from bottom to top in the center of the mixing bowl. The drive shaft and the food processing actuator rotate on the concentric axis of the mixing bowl. The food processing actuator is difficult to knead the dough effectively and is only suitable for small-capacity mixing bowls. Its kneading efficiency is low.

[0024] Based on this, this embodiment provides a vertical dough mixer with inclined drive, which is mainly used for food processing operations such as dough making, ingredient mixing, egg whipping, and meat mincing in home kitchens or commercial catering establishments.

[0025] See Figures 1-2 As shown, the vertical dough mixer includes a main body 1, a dough mixing bowl 2, a drive mechanism, a drive head 3, and food processing actuators.

[0026] The main body 1 has a base 4 and a vertical part 5. The vertical part 5 extends vertically upward from one side of the base 4 to form a column structure. The base 4 and the vertical part 5 cooperate to form an L-shaped structure.

[0027] The mixing bowl 2 is movably mounted on the base 4 of the main body 1. The interior of the mixing bowl 2 forms a working cavity with an open opening for holding ingredients such as flour, water, eggs, and meat. In the context of this technology, "movably mounted" means that the mixing bowl 2 can be placed on the base 4 and can be removed from the base 4 when it is necessary to wash or change the ingredients.

[0028] In a preferred embodiment, the mixing bowl 2 is made of food-grade stainless steel and formed by stretching or spinning. Its inner wall is smooth and without dead corners, which facilitates the turning and cleaning of the dough.

[0029] The drive mechanism is installed in the internal cavity of the main body 1. The drive head 3 is installed on the upright part 5 of the main body 1 and is located above the mixing basin 2. The food processing actuator is detachably connected to the drive head 3 and extends obliquely into the inner cavity of the mixing basin 2 from above. The drive mechanism includes a drive assembly and a drive shaft 11 that extends obliquely relative to the upright part 5. One end of the drive shaft 11 is connected to the drive assembly, and the other end of the drive shaft 11 is connected to the drive head 3. The drive assembly drives the food processing actuator to rotate around the axis of the drive head 3 through the drive shaft 11 and the drive head 3.

[0030] See Figure 1 As shown, the food processing actuator is the functional execution unit of this invention. It can be replaced with different types of actuators depending on different processing needs, including but not limited to a dough hook 26, a mixing paddle 27, a whisk 28, and a meat grinder 29. These actuators all have a unified connection end structure, enabling quick assembly and disassembly with the drive head 3. Once installed, the food processing actuator extends diagonally downwards from the upper edge of the mixing bowl 2, pointing towards the center of the inner cavity of the mixing bowl 2. Its end approaches the bottom 23 of the mixing bowl 2 while maintaining a certain distance to avoid interference with the bowl wall.

[0031] By adopting the above structural design, the drive mechanism is built into the body 1, and the power is transmitted to the drive head 3 through the obliquely extending drive shaft 11. The food processing actuator extends obliquely from above the mixing bowl 2. When the food processing actuator rotates in the viscous dough, the reaction force exerted by the dough is transmitted to the drive head 3 through the food processing actuator, and then distributed to the entire vertical dough mixer via the oblique drive shaft 11. Since the vertical dough mixer in this application has no movable cantilever that can be raised or lowered, the reaction force is less likely to induce structural gap displacement, thus solving the problem of easy shaking in existing vertical dough mixers during operation. Secondly, the food processing actuator and the drive head 3 are detachably connected. The mixing bowl 2 can be picked up and put down simply by disassembling the food processing actuator. In contrast, the drive cantilever in the traditional vertical dough mixer is a movable part that needs to be raised and lowered when picking up and putting down the mixing bowl 2. The lack of rigidity leads to obvious shaking under load. The above structural design in this application ensures that the entire vertical dough mixer remains stable even under conditions of large volume and high viscosity dough.

[0032] In this embodiment, one end of the drive shaft 11 is connected to the output end of the reduction gearbox 42, and the other end is connected to the drive head 3. The extension direction of the drive shaft 11 forms a certain angle with respect to the upright portion 5. This angle is determined based on the size and shape of the mixing bowl 2 and the working angle of the food processing actuator, and for example, it can be set between 30 and 60 degrees. The cross-section of the drive shaft 11 is designed to be polygonal. In a preferred embodiment, the cross-section of the drive shaft 11 is hexagonal. This design allows the drive shaft 11 to transmit torque without relying on a key connection, while allowing the bushing 31 that mates with it to slide along its axial direction.

[0033] See Figures 18-20 As shown, the drive assembly includes a motor 41, a reduction gearbox 42, an auxiliary reduction gearbox 45, and a transmission rod 43. The motor 41 is installed inside the vertical part 5; the reduction gearbox 42 is installed inside the vertical part 5 and is connected to the motor 41, with the output end of the reduction gearbox 42 connected to the drive shaft 11; the auxiliary reduction gearbox 45 is installed below the base 4; the transmission rod 43 is installed inside the vertical part 5, with the upper end of the transmission rod 43 connected to the reduction gearbox 42 and the lower end of the transmission rod 43 connected to the auxiliary reduction gearbox 45; wherein, the motor 41 drives the reduction gearbox 42, and the reduction gearbox 42 synchronously drives the drive shaft 11 and the transmission rod 43, causing the food processing actuator to rotate around the axis of the drive head 3.

[0034] Specifically, the transmission rod 43 includes an upper end 431 and a lower end 432. The motor 41 is installed in the internal cavity of the vertical part 5, and the output shaft of the motor 41 is arranged vertically. The reduction gearbox 42 is also installed inside the vertical part 5, located on the power output side of the motor 41. The reduction gearbox 42 has two power output ends: the first output end is the aforementioned drive shaft 11, and the second output end is the transmission rod 43. The drive shaft 11 extends obliquely downward from one side of the reduction gearbox 42, passes through the side wall of the vertical part 5, and connects to the drive head 3. The transmission rod 43 is installed vertically inside the vertical part 5. The upper end of the transmission rod 43 is connected to the second output end of the reduction gearbox 42, and the lower end of the transmission rod 43 extends downward, passes through the base 4, and connects to the auxiliary reduction gearbox 45. The auxiliary reduction gearbox 45 is installed below the base 4, that is, on the outer side of the bottom surface of the base 4. The power output end of the auxiliary reduction gearbox 45 is connected to a diaphragm drive mechanism 46. With this design, after the motor 41 starts, it simultaneously drives the drive shaft 11 and the transmission rod 43 to rotate via the reduction gearbox 42. The drive shaft 11 drives the food processing actuator to rotate around its axis, while the transmission rod 43 drives the bowl drive mechanism 46 to rotate via the auxiliary reduction gearbox 45. The bowl drive mechanism 46 then drives the mixing bowl 2 to revolve around its own central axis. The combined rotation of the food processing actuator and the revolve of the mixing bowl 2 ensures that the ingredients in the mixing bowl 2 are simultaneously kneaded, stirred, and tumbled in multiple directions, thereby improving the efficiency of dough mixing.

[0035] See Figures 21-22 As shown, the basin drive mechanism 46 is mounted on the base 4, connected to the auxiliary reduction gearbox 45, and connected to the mixing basin 2. The basin drive mechanism 46 includes a fixed frame 463, a first bearing 464, a second bearing 465, and a turntable 466. The fixed frame 463 is mounted on the base 4, and has two bearing mounting holes 12 inside. The first bearing 464 and the second bearing 465 are respectively installed in the two bearing mounting holes 12. The first bearing 464 and the second bearing 465 are coaxially arranged. The turntable 466 is T-shaped, and has a downwardly extending turntable shaft 467 at the lower center of the turntable 466. The turntable 466 has multiple locking pins 468 on its surface.

[0036] See Figure 2 , Figure 14 and Figure 21 As shown, the turntable shaft 467 extends into the fixed frame 463. The turntable shaft 467 passes through the inner rings of the first bearing 464 and the second bearing 465 from bottom to top and cooperates with the first bearing 464 and the second bearing 465. The turntable shaft 467 is connected to the auxiliary gearbox 45. The basin 2 has multiple locking holes 24, and the locking holes 24 are corresponding to the locking pins 468.

[0037] When placing the mixing bowl 2, the operator aligns the locking hole 24 at the bottom of the mixing bowl 2 with the locking pin 468 on the turntable 466 and lowers it, allowing the locking pin 468 to enter the insertion section of the locking hole 24. Then, the operator rotates the mixing bowl 2 clockwise or counterclockwise at a certain angle, causing the locking pin 468 to slide into the locking section of the locking hole 24, thus locking the mixing bowl 2 to the turntable 466. Conversely, rotating the mixing bowl 2 in the opposite direction will unlock it and allow the mixing bowl 2 to be removed upwards.

[0038] See Figure 12 As shown, in this embodiment, the cross-section of the drive shaft 11 is polygonal, such as hexagonal, and includes a shaft body 111, a lower shaft tapered section 112, a shaft flange 113, a shaft end face 114, and an upper shaft end 115.

[0039] See Figures 2-6 As shown, the drive head 3 includes a bushing 31, a locking sleeve 32, a guide ring 332, a retaining ring 334, an elastic element 33, and at least one guide post 331. The bushing 31 is sleeved on the outer periphery of the drive shaft 11. The cross-sectional shape of the inner hole of the bushing 31 is adapted to the cross-sectional shape of the drive shaft 11. The cross-section of the drive shaft 11 is designed as a polygon, preferably a regular hexagon. The inner hole of the bushing 31 is also a corresponding regular hexagonal hole, and the two form a sliding fit.

[0040] See Figures 6-9 As shown, the locking sleeve 32 is fitted around the outer periphery of the bushing 31; the guide ring 332 is movably installed around the outer periphery of the locking sleeve 32, and the guide ring 332 is provided with a guide hole 333; the retaining ring 334 is installed on the locking sleeve 32, and the retaining ring 334 slides in cooperation with the guide ring 332; one end of the elastic member 33 is connected to the guide ring 332, and the other end of the elastic member 33 is connected to the gearbox 42; at least a portion of the guide post 331 passes through the guide hole 333, and one end of the guide post 331 is fixed to the gearbox 42.

[0041] See Figure 10 As shown, the bushing 31 is provided with an upper cone 311, a lower cone 313, and an inner ring 312. The upper cone 311 is located in the upper region of the inner wall of the bushing 31, the lower cone 313 is located in the lower region of the inner wall of the bushing 31, and the inner ring 312 is located in the middle region of the inner wall of the bushing 31. The outer wall of the bushing 31 is provided with an outer ring 314 and a retaining ring 315. The outer ring 314 is located in the middle region of the outer wall of the bushing 31, and the retaining ring 315 is located at the top of the outer wall of the bushing 31.

[0042] Specifically, the upper part of the inner wall of the bushing 31 is machined with an upper tapered section 311, which gradually tapers towards the first port of the bushing 31. The lower part of the inner wall of the bushing 31 is machined with a lower tapered section 313, which gradually expands outward towards the second port of the bushing 31. The middle part of the inner wall of the bushing 31 is provided with an inner ring 312, which is a radially inwardly protruding annular step. The middle part of the outer wall of the bushing 31 is provided with an outer ring 314, which is a radially outwardly protruding annular step. The top of the outer wall of the bushing 31 is provided with a retaining ring 315, which is also a radially outwardly protruding annular flange.

[0043] See Figures 7-8 and Figure 11 As shown, the locking sleeve 32 has an upper locking ring 321 and a lower locking rib 322; the upper locking ring 321 is located in the upper region of the inner ring of the locking sleeve 32; multiple lower locking ribs 322 are provided, and the multiple lower locking ribs 322 are obliquely arranged in the lower region of the inner ring of the locking sleeve 32; wherein, the outer ring 314, the outer wall of the bushing 31, and the retaining ring 315 cooperate to define a retaining groove, at least a portion of the upper locking ring 321 is located in the retaining groove, and the upper locking ring 321 can move in the retaining groove along the axial direction of the drive shaft 11; the lower locking rib 322 cooperates with the food processing actuator to engage.

[0044] Specifically, the locking sleeve 32 is fitted around the outer periphery of the bushing 31. The upper part of the inner ring of the locking sleeve 32 has a locking ring 321, which is a radially inwardly protruding annular flange. The lower part of the inner ring of the locking sleeve 32 has multiple locking ribs 322 arranged circumferentially, each of which is an obliquely oriented protrusion. The guide ring 332 is movably fitted around the outer periphery of the locking sleeve 32. At least one guide hole 333 is formed on the guide ring 332, penetrating vertically through it. A retaining ring 334 is fixedly installed on the upper outer wall of the locking sleeve 32, and slides against the upper end face of the guide ring 332. One end of the elastic element 33 is connected to the guide ring 332, and the other end is connected to the gearbox 42. The guide post 331 is set parallel to the axis of the locking sleeve 32. One end of the guide post 331 is fixed on the gearbox 42, and the other end of the guide post 331 passes through the guide hole 333 on the guide ring 332. The guide post 331 and the guide hole 333 are in sliding fit.

[0045] The vertical dough mixer has an initial state and a working state. When the vertical dough mixer is in the initial state, that is, the idle state without food processing actuators installed, the elastic element 33 is in the contracted state. The elastic element 33 pulls the guide ring 332 upward. The upper end face of the guide ring 332 pushes the retaining ring 334 upward. The retaining ring 334 drives the locking sleeve 32 upward. The locking ring 321 inside the locking sleeve 32 pushes the retaining ring 315 on the outer wall of the bushing 31 upward. The retaining ring 315 drives the entire bushing 31 to slide upward along the drive shaft 11 until the top of the bushing 31 contacts the limiting surface on the gearbox 42. At this time, the drive head 3 retracts into the interior of the vertical part 5 or is close to the side wall of the vertical part 5, which can prevent the drive head 3 from accidentally injuring the operator and can also reduce dust accumulation.

[0046] When the food processing actuator needs to be installed, the operator pulls the locking sleeve 32 downwards by hand. The locking sleeve 32 moves downwards against the tension of the elastic element 33. At the same time, the locking sleeve 32 drives the bushing 31 to slide downwards through the locking ring 321. When the bushing 31 slides to the lowest position, the operator inserts the connecting end of the food processing actuator into the drive head 3, and then rotates the locking sleeve 32 at a certain angle so that the locking rib 322 at the bottom of the locking sleeve 32 engages with the corresponding structure on the food processing actuator. At this time, the elastic element 33 is in an extended state to maintain a certain tension and ensure reliable engagement.

[0047] When the vertical dough mixer is in operation, the motor 41 starts, the drive shaft 11 rotates, and the drive shaft 11 drives the bushing 31 to rotate. The bushing 31 transmits torque through its internal fitting tapered cone 311. At the same time, the bushing 31 drives the locking sleeve 32 to rotate, which in turn drives the food processing actuator to rotate. The retaining ring 334 on the locking sleeve 32 rotates accordingly. Since the guide ring 332, the guide post 331, and the elastic element 33 are not fixedly connected to the locking sleeve 32, but are kept stationary through the sliding fit between the retaining ring 334 and the guide ring 332, and the sliding fit between the guide post 331 and the guide hole 333, the guide ring 332, the guide post 331, and the elastic element 33 do not rotate with the locking sleeve 32. This avoids the risk of fatigue fracture of the elastic element 33 due to rotation, and also reduces rotational noise.

[0048] See Figure 13 As shown, in order to achieve a reliable connection between the locking sleeve 32 and the food processing actuator, the connecting end of the food processing actuator has a specific geometric shape. The food processing actuator has a connecting end, which includes a hook cone 263, a hook flange 264, multiple hook ribs 265, and a first rib limiter 266. One end of the hook cone 263 has a hook end face 262, and the other end of the hook cone 263 is connected to the hook flange 264. The multiple hook ribs 265 are spaced apart on the outer ring surface of the hook flange 264. The first rib limiter 266 is located on the outer ring surface of the hook flange 264 and is connected to the hook ribs 265.

[0049] Taking the dough-mixing hook 26 as an example, the connecting end of the dough-mixing hook 26 includes a hook end 261, an upper hook cone 263, a hook flange 264, multiple hook ribs 265, and a first rib limiter 266. One end of the upper hook cone 263 has a hook end face 262, which is a flat plane. The upper hook cone 263 constitutes the upper part of the connecting end, and the hook flange 264 constitutes the lower part of the connecting end. It is an annular flange with a diameter larger than the maximum diameter of the upper hook cone 263. Multiple hook ribs 265 are formed on the outer ring surface of the hook flange 264 along the circumferential direction. The inclination angle of the hook ribs 265 matches the inclination angle of the lower locking rib 322 on the locking sleeve 32. Each hook rib 265 has a first rib limiter 266 at its end. The first rib limiter 266 is a stop that protrudes outward along the radial direction of the hook flange 264 to limit the lower locking rib 322.

[0050] To further improve the versatility and functionality of the food processing actuators, the food processing actuators in this embodiment include a variety of interchangeable accessories, specifically a dough hook 26, a mixing paddle 27, a whisk 28, and a meat grinder 29. The dough hook 26 is used for kneading dough, and its shape can be spiral, S-shaped, etc. The mixing paddle 27 has a paddle end 271 and is used for mixing semi-fluid ingredients such as fillings and cream. The whisk 28 has a whisk end 281 and is used for whipping egg whites, cream, etc. The meat grinder 29 has a blade end 291 and is used for mincing meat, vegetables, etc. These different food processing actuators all adopt the same connecting end structure, that is, they all have a hook end face 262, a hook cone 263, a hook flange 264, a hook oblique rib 265, and a first rib limit 266, so they can be quickly interchanged and installed on the same drive head 3, achieving multi-purpose functionality.

[0051] This embodiment also provides further optimization solutions for the meat mincing knife 29. See [link to relevant documentation]. Figures 15-17 As shown, the meat mincing knife 29 includes a knife holder and a blade assembly. One end of the knife holder has a connecting end that connects to the drive head 3, and the other end of the knife holder has a blade assembly, which includes a straight blade 292 and a curved blade 293. The straight blade 292 is elongated, with its cutting edge located at the leading edge in its rotational direction. The rotational envelope of the straight blade 292 is a cylinder 294. The curved blade 293 extends outward from the knife holder and then bends inward. The rotational envelope of the curved blade 293 is a conical rhombus 295. Along the axial direction of the knife holder, the projected length of the straight blade 292 in the axial direction of the knife holder is greater than the projected length of the curved blade 293 in the axial direction of the knife holder, while the radial extension distance of the curved blade 293 is greater than the radial extension distance of the straight blade 292. That is, the outer edge of the curved blade 293 is closer to the side wall of the basin 2. With this design, when the meat mincing knife 29 rotates, the straight blade 292 is responsible for cutting the food in the central area near the bottom of the bowl 23, while the curved blade 293 is responsible for cutting the food in the area near the surrounding walls of the bowl. The two complement each other, thereby reducing the cutting dead angles.

[0052] The mixing basin 2 includes a basin body 22; a basin edge 21 and a basin bottom 23. The basin edge 21 is located at the top of the basin body 22; the basin bottom 23 is located at the bottom of the basin body 22. The central area of ​​the basin bottom 23 is raised upward to form a boss, and the outer edge area of ​​the basin bottom 23 extends outward in a horizontal direction to form a ring. Multiple key holes 24 are opened on the ring.

[0053] The basin lid 25 covers the mouth of the mixing basin 2. The basin lid 25 is provided with a mounting post 251 and a feed inlet 252. The side wall of the main body 1 is provided with a mounting hole 12 and a cover switch 13. When the mounting post 251 is inserted into the mounting hole 12, the cover switch 13 is triggered to turn on the power.

[0054] When the operator places the lid 25 onto the mixing bowl 2, the mounting post 251 on the lid 25 inserts into the mounting hole 12 of the upright part 5. The mounting post 251 pushes the contact of the lid switch 13, causing the lid switch 13 to close, thereby connecting the power control circuit. When the lid 25 is removed, the mounting post 251 is pulled out of the mounting hole 12, the contact of the lid switch 13 resets, the lid switch 13 opens, and the power supply circuit of the motor 41 is cut off. This design ensures that the motor 41 only starts when the lid 25 is correctly installed, effectively reducing the risk of accidental injury to the operator from reaching into the mixing bowl 2 while the machine is running. Furthermore, a bowl switch 17 is also provided on the side wall of the base 4 near the bottom of the mixing bowl 2. When the mixing bowl 2 is correctly placed on the turntable 466 and rotated to lock, the mixing bowl 2 touches the contact of the bowl switch 17, causing the bowl switch 17 to close.

[0055] See Figures 18-20 As shown, the gearbox 42 includes a housing, a worm gear 422, a worm wheel 421, a spur gear 423, an idler spur gear 424, an idler helical gear 425, and a drive helical gear 426. The housing has a chamber for accommodating the worm gear 422, worm wheel 421, spur gear 423, idler spur gear 424, idler helical gear 425, and drive helical gear 426. The worm gear 422 is connected to the output shaft of the motor 41; the helical portion of the worm gear 422 meshes with the worm wheel 421; the spur gear 423 is coaxially arranged with the worm wheel 421 and connected to the worm wheel 421 via a transmission shaft; the idler spur gear 424 meshes with the spur gear 423; the idler helical gear 425 is coaxially arranged with and fixedly connected to the idler spur gear 424; and the drive helical gear 426 meshes with the idler helical gear 425, and is fixedly connected to the upper end of the drive shaft 11.

[0056] To support the rotation of the drive shaft 11 and withstand axial force, the gearbox 42 is also equipped with a drive thrust bearing 429, an upper drive bearing 427, and a lower drive bearing 428. The drive thrust bearing 429 is located on the top surface of the helical gear 426 and abuts against the inner top wall of the gearbox, thereby limiting the upward displacement of the drive shaft 11 and the helical gear 426. The upper drive bearing 427 is embedded in an annular groove in the gearbox and is sleeved on the drive shaft 11, abutting against the helical gear 426. The lower drive bearing 428 is embedded in an annular groove in the gearbox. The lower drive bearing 428 and the upper drive bearing 427 are spaced apart and sleeved on the drive shaft 11. The upper drive bearing 427 and the lower drive bearing 428 are used to limit the radial displacement of the drive shaft 11 and the helical gear 426.

[0057] Specifically, the drive bearing 429 is disposed between the top surface of the helical gear 426 and the inner top wall of the housing. The drive bearing 429 is used to limit the upward axial displacement of the drive shaft 11 and the helical gear 426, preventing the drive shaft 11 from moving upward during operation. The upper drive bearing 427 is embedded in an annular groove in the inner wall of the housing and is sleeved on the upper part of the drive shaft 11. The upper end face of the upper drive bearing 427 abuts against the lower end face of the helical gear 426. The lower drive bearing 428 is also embedded in another annular groove in the inner wall of the housing and is sleeved on the drive shaft 11. The upper drive bearing 427 and the lower drive bearing 428 are spaced a certain distance apart and together limit the radial displacement of the drive shaft 11, ensuring that the drive shaft 11 rotates smoothly.

[0058] The gearbox 42 also includes a first helical gear 44, a second helical gear 441, a transmission sleeve 443, an upper bearing 444, a lower bearing 445, and a pusher bearing 442; the first helical gear 44 is coaxially arranged with and connected to the spur gear 423; the second helical gear 441 is horizontally arranged and meshes with the first helical gear 44; the transmission sleeve 443 is connected to the gearbox body, and the transmission sleeve 443 has a through cavity; the upper bearing 444 is located at the upper end of the transmission sleeve 443; the lower bearing 445 is located at the lower end of the transmission sleeve 443; and the pusher bearing 442 is located below the second helical gear 441.

[0059] The transmission rod 43 passes through the cavity of the transmission sleeve 443. The upper end of the transmission rod 43 passes through the upper bearing 444 and the rod push bearing 442 in sequence and is fixedly connected to the second helical gear 441. The lower end of the transmission rod 43 passes through the lower bearing 445 and is connected to the auxiliary reduction gearbox 45.

[0060] When the spur gear 423 rotates, the first helical gear 44 rotates along with it, driving the second helical gear 441 to rotate. The second helical gear 441 drives the transmission rod 43 to rotate. The rod push bearing 442 bears the downward axial force of the second helical gear 441. The upper bearing 444 and the lower bearing 445 jointly bear the radial force of the transmission rod 43, ensuring that the transmission rod 43 rotates smoothly.

[0061] The auxiliary reduction gearbox 45 is mounted on the lower surface of the base 4. Its function is to convert the high-speed, low-torque rotation of the transmission rod 43 into low-speed, high-torque rotation to meet the heavy load requirements of the basin 2. The auxiliary reduction gearbox 45 includes a front wheel 451, a front belt 452, a middle wheel 453, a middle shaft 456, a middle frame 457, a final wheel 462, and a final belt 461. The front wheel 451 is fixed to the lower end of the transmission rod 43; the central shaft 456 is fixed to the base 4; the central frame 457 is fixedly connected to the base 4 and located below the central shaft 456 to support the central shaft 456; the central wheel 453 has an upper central wheel 455 and a lower central wheel 454; the central wheel 453 is sleeved on the central shaft 456 through a first wheel bearing 458 and a second wheel bearing 459; the front belt 452 is sleeved on the outer periphery of the front wheel 451 and the lower central wheel 454; the last wheel 462 is fixedly connected to the turntable shaft 467; the last belt 461 is sleeved on the outer periphery of the upper central wheel 455 and the last wheel 462.

[0062] In addition to the dough kneading function, the vertical dough kneader of this embodiment also integrates a meat grinding function. A meat grinding interface 14 is provided on the side of the vertical part 5 of the main body 1, and the meat grinding interface 14 is coaxially arranged with the idler spur gear 424 inside the gearbox 42.

[0063] Specifically, the idler shaft containing the idler spur gear 424 extends to the right, passes through the right side wall of the gearbox 42, and has a square or hexagonal connector at the right end. The meat grinding interface 14 includes a guide frame 15, which is fixedly mounted on the side wall of the upright part 5. When meat grinding is required, the operator inserts the input shaft of the meat grinder head into the guide frame 15, which meshes with the connector at the right end of the idler shaft, thus providing rotational power to the meat grinder head. The meat grinder head is equipped with a spiral pusher and cross blades. Meat is fed in through the feed port 252, shredded under the push of the spiral pusher, and squeezed out from the sieve plate. The driving relationship is as follows: the motor 41 drives the worm gear 422, the worm gear 422 drives the worm wheel 421, the worm wheel 421 drives the spur gear 423, the spur gear 423 drives the idler spur gear 424, and the idler spur gear 424 drives the drive shaft 11 through the idler helical gear 425 and the drive helical gear 426, and also drives the meat grinder head through the meat grinding interface 14 at the right end of the idler shaft.

[0064] See Figures 22-23As shown, to achieve intelligent control, this embodiment also includes an electronic control unit 16. The electronic control unit 16 is installed in the main body 1 and includes a power supply module 161, a timing module 162, a speed control module 163, and multiple protection modules. The power supply module 161 converts the input AC mains power into low-voltage DC power to power the control circuit and sensors. The timing module 162 allows the operator to set the working time, and automatically cuts off the power to the motor 41 after the set time is reached. The speed control module 163 changes the input voltage of the motor 41 according to the set value, thereby changing the speed of the motor 41. The protection modules include the aforementioned cover switch 13, basin switch 17, etc. The cover switch 13 and basin switch 17 are connected in series in the power supply circuit of the motor 41.

[0065] The working principle and usage of this embodiment will be further explained below with reference to the specific operation process.

[0066] The first step is to place the mixing bowl 2. The operator places the mixing bowl 2 from above onto the turntable 466 of the base 4, aligning the locking pin 468 on the turntable 466 with the insertion section of the locking hole 24. Then, the mixing bowl 2 is rotated clockwise, causing the locking pin 468 to slide into the locking section of the locking hole 24. At this time, the mixing bowl 2 touches the bowl switch 17, and the bowl switch 17 is closed.

[0067] The second step is to pull out the drive head 3. The operator pinches the outer wall of the locking sleeve 32 with their fingers and pulls the locking sleeve 32 downward against the tension of the elastic element 33. The locking sleeve 32 drives the bushing 31 to slide downward together until it slides to the lowest position. At this time, the drive head 3 extends out from the side wall of the upright part 5 and is in the installation state.

[0068] The third step is to install the food processing actuator. The operator selects a suitable food processing actuator, such as a dough-kneading hook 26, according to processing needs. The connecting end of the dough-kneading hook 26 is inserted upwards into the drive head 3, pushing the hook's upper cone 263 into the lower cone 313, with the hook end face 262 contacting the lower end face of the drive shaft 11. Then, the locking sleeve 32 is rotated, causing the locking rib 322 of the inner ring of the locking sleeve 32 to screw into and engage the hook's oblique rib 265, until the first rib limit 266 and the second rib limit 323 come into contact and stop. The locking ring 321 drives the outer ring 314, causing the upper cone 311 to tighten with the lower cone 112 of the shaft, and the locking rib 322 drives the hook's oblique rib 265, causing the hook's upper cone 263 to tighten with the lower cone 313 of the sleeve. This ensures a tight connection between the lower cone 112 and the upper cone 311, the shaft end face 114 and the hook end face 262, and the hook's upper cone 263 and the lower cone 313 of the sleeve, completing the locking process.

[0069] The fourth step is to place the basin lid 25. The operator places the basin lid 25 on top of the mixing basin 2, aligns the mounting post 251 on the basin lid 25 with the mounting hole 12 on the side wall of the upright part 5, and pushes the mounting post 251 into the mounting hole 12, triggering the lid switch 13.

[0070] Step 5: Set parameters and start. Set the working time and speed setting. Motor 41 starts, and the output of motor 41 drives worm 422 to rotate. Worm 422 drives worm wheel 421 to rotate. Worm wheel 421 drives spur gear 423 and first helical gear 44 to rotate synchronously through the transmission shaft. Spur gear 423 drives idler spur gear 424 to rotate. Idler spur gear 424 drives drive helical gear 426 to rotate through idler helical gear 425. Drive helical gear 426 drives drive shaft 11 to rotate. Drive shaft 11 drives bushing 31 to rotate. Bushing 31 drives dough hook 26 to rotate through conical friction. Dough hook 26 rotates inside the mixing bowl 2. At the same time, the first helical gear 44 drives the second helical gear 441 to rotate, the second helical gear 441 drives the transmission rod 43 to rotate, the transmission rod 43 drives the front wheel 451 to rotate, the front wheel 451 drives the lower middle wheel 454 to rotate via the front belt 452, the lower middle wheel 454 drives the upper middle wheel 455 to rotate synchronously, the upper middle wheel 455 drives the last wheel 462 to rotate via the last belt 461, the last wheel 462 drives the turntable shaft 467 to rotate, the turntable shaft 467 drives the turntable 466 to rotate, and the turntable 466 drives the mixing basin 2 to rotate via the locking pin 468, thereby realizing the continuous kneading function.

[0071] During the kneading process, the dough undergoes a complex motion under the push of the kneading hook 26. On the one hand, it rotates around the axis of the drive head 3 with the kneading hook 26, and on the other hand, it is continuously kneaded, stretched, and folded under the action of the spiral curved surface of the kneading hook 26. At the same time, the rotation of the kneading bowl 2 itself causes the dough to continuously change its position relative to the kneading hook 26, thus avoiding the problem that the dough is only kneaded in a fixed area while other areas are not fully kneaded.

[0072] Step 6: Dough kneading complete. After the set working time is reached, the timer module 162 automatically cuts off the power to the motor 41, and the motor 41 stops rotating. The operator removes the bowl lid 25, then rotates the locking sleeve 32 in the opposite direction to separate the dough hook 26 from the drive head 3, and removes the dough hook 26.

[0073] Replace the dough hook 26 with the mixing paddle 27, whisk 28, and meat grinder 29, and repeat the above steps to install and remove the mixing paddle 27, whisk 28, and meat grinder 29. This will enable functions such as mixing ingredients, whipping eggs, and mincing meat.

[0074] In summary, the inclined-drive vertical dough mixer proposed in this invention includes a body 1, a dough mixing bowl 2, a drive mechanism, a drive head 3, and a food processing actuator. The body 1 has a base 4 and a vertical part 5, which cooperate to form an L-shaped structure. The dough mixing bowl 2 is movably disposed on the base 4 of the body 1. The drive mechanism is installed inside the body 1. The drive head 3 is installed on the vertical part 5 of the body 1 and is located above the dough mixing bowl 2. The food processing actuator is detachably connected to the drive head 3 and extends obliquely into the inner cavity of the dough mixing bowl 2 from above. The drive mechanism includes a drive assembly and a drive shaft 11 extending obliquely relative to the vertical part 5. One end of the drive shaft 11 is connected to the drive assembly, and the other end of the drive shaft 11 is connected to the drive head 3. The drive assembly drives the food processing actuator to rotate around the axis of the drive head 3 through the drive shaft 11 and the drive head 3. In this design, the drive mechanism is built into the main body 1, and the power is transmitted to the drive head 3 through the obliquely extending drive shaft 11. The food processing actuator extends obliquely from above the mixing bowl 2. When the food processing actuator rotates in the viscous dough, the reaction force exerted by the dough is transmitted to the drive head 3 through the food processing actuator, and then distributed to the entire vertical dough mixer via the oblique drive shaft 11. Since the vertical dough mixer in this application has no movable cantilever that can be raised or lowered, the reaction force is less likely to induce structural gap displacement, thus solving the problem of easy shaking in existing vertical dough mixers during operation. Secondly, the food processing actuator and the drive head 3 are detachably connected. The mixing bowl 2 can be picked up and put down simply by disassembling the food processing actuator. In contrast, the drive cantilever in the traditional vertical dough mixer is a movable part that needs to be raised and lowered when picking up and putting down the mixing bowl 2. The lack of rigidity leads to obvious shaking under load. The above-mentioned structural design in this application ensures that the entire vertical dough mixer can remain stable even under conditions of large-capacity, high-viscosity dough.

[0075] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A vertical dough mixer driven at an angle, characterized in that, include: The body has a base and a vertical part, the base and the vertical part cooperating to form an L-shaped structure; A mixing basin is movably mounted on the base of the main body; The drive mechanism is installed inside the body; The drive head is mounted on the upright part of the main body and is located above the basin; A food processing actuator is detachably connected to the drive head, and the food processing actuator extends obliquely into the inner cavity of the mixing bowl from above; The drive mechanism includes: Driver components; The drive shaft extends obliquely relative to the upright portion. One end of the drive shaft is connected to the drive assembly, and the other end of the drive shaft is connected to the drive head. The drive assembly drives the food processing actuator to rotate around the axis of the drive head through the drive shaft and the drive head.

2. The inclined-drive vertical dough mixer according to claim 1, characterized in that, The driving component includes: The motor is installed inside the vertical part; A gearbox is installed inside the vertical part, and the gearbox is connected to the motor. The output end of the gearbox is connected to the drive shaft. A secondary gearbox is installed below the base; A transmission rod is installed inside the vertical part, with its upper end connected to the reduction gearbox and its lower end connected to the auxiliary reduction gearbox. The motor drives the gearbox, which in turn drives the drive shaft and the transmission rod synchronously, causing the food processing actuator to rotate around the axis of the drive head.

3. The inclined-drive vertical dough mixer according to claim 2, characterized in that, The vertical dough mixer also includes a basin drive mechanism, which is mounted on the base, connected to the auxiliary gearbox, and connected to the dough mixing basin. The basin driving mechanism includes: A fixing frame is installed on the base; The first bearing is installed inside the fixed frame; The second bearing is installed inside the fixed frame; A turntable, the turntable being T-shaped, having a turntable shaft at its lower part, and having multiple locking pins on its surface; The turntable shaft extends into the fixed frame and cooperates with the first bearing and the second bearing. The turntable shaft is connected to the auxiliary gearbox. The mixing basin has multiple locking holes, and each locking hole corresponds to a locking pin.

4. The inclined-drive vertical dough mixer according to claim 2, characterized in that, The driving head includes: A bushing, fitted around the outer periphery of the drive shaft; A locking sleeve is fitted around the outer periphery of the bushing; A guide ring is movably mounted on the outer periphery of the lock sleeve, and a guide hole is provided on the guide ring; A retaining ring is installed on the lock sleeve, and the retaining ring slides in conjunction with the guide ring; An elastic element, one end of which is connected to the guide ring, and the other end of which is connected to the gearbox; A guide post, at least a portion of which passes through the guide hole, and one end of the guide post is fixed to the gearbox; The vertical dough mixer has an initial state and a working state; When the vertical dough mixer is in the initial state, the elastic element pulls the guide ring, the guide ring pushes the retaining ring, and the retaining ring drives the locking sleeve and the bushing to slide upward along the drive axis, so that the drive head is in the retracted state; When the vertical dough mixer is in operation, the elastic element is in an extended state, and the guide ring, the guide post, and the elastic element are in a stationary state, while the drive shaft, the bushing, the locking sleeve, and the retaining ring rotate synchronously.

5. The inclined-drive vertical dough mixer according to claim 4, characterized in that, The inner hole of the bushing is a polygonal hole, and the cross-section of the drive shaft is polygonal. The cross-sectional dimensions of the inner hole of the bushing and the cross-sectional dimensions of the drive shaft are adapted to each other. The bushing is provided with an upper cone, a lower cone, and an inner ring. The upper cone is located in the upper region of the inner wall of the bushing, the lower cone is located in the lower region of the inner wall of the bushing, and the inner ring is located in the middle region of the inner wall of the bushing. The outer wall of the bushing is provided with an outer ring and a retaining ring. The outer ring is located in the middle region of the outer wall of the bushing, and the retaining ring is located at the top of the outer wall of the bushing.

6. The inclined-drive vertical dough mixer according to claim 5, characterized in that, The lock sleeve has an upper locking ring and a lower locking rib; The upper locking ring is located in the upper region of the inner ring of the lock sleeve; The locking ribs are provided in multiple ways, and the multiple locking ribs are obliquely arranged in the lower area of ​​the inner ring of the lock sleeve; The outer ring, the outer wall of the bushing, and the retaining ring cooperate to define a groove. At least a portion of the locking ring is located in the groove, and the locking ring can move within the groove along the axial direction of the drive shaft. The lower locking rib engages with the food processing actuator.

7. The inclined-drive vertical dough mixer according to claim 6, characterized in that, The food processing actuator has a connecting end, the connecting end comprising: A hooked cone, one end of which has a hooked end face; The hook flange, wherein the other end of the hook cone is connected to the hook flange; Multiple diagonal ribs are spaced apart on the outer ring surface of the hook flange; The first rib limiter is set on the outer ring surface of the hook flange and connected to the hook oblique rib.

8. The inclined-drive vertical dough mixer according to claim 3, characterized in that, The gearbox includes a worm, a worm wheel, a spur gear, an idler spur gear, an idler helical gear, and a drive helical gear. The worm is connected to the output shaft of the motor; the worm wheel meshes with the worm; the spur gear is coaxial with the worm wheel and connected to the worm wheel via a transmission shaft; the idler spur gear meshes with the spur gear; the idler helical gear is coaxial with the idler spur gear and fixedly connected; the drive helical gear meshes with the idler helical gear and is fixedly connected to the upper end of the drive shaft. The gearbox further includes a housing, a push bearing, an upper drive bearing, and a lower drive bearing. The push bearing is disposed on the top surface of the helical gear and abuts against the inner top wall of the housing, thereby limiting the upward displacement of the drive shaft and the helical gear. The upper drive bearing is embedded in an annular groove of the housing and is sleeved on the drive shaft, abutting against the helical gear. The lower drive bearing is embedded in an annular groove of the housing, and the lower drive bearing and the upper drive bearing are spaced apart. Both the lower drive bearing and the upper drive bearing are sleeved on the drive shaft, and the upper drive bearing and the lower drive bearing are used to limit the radial displacement of the drive shaft and the helical gear. The gearbox further includes a first helical gear, a second helical gear, a transmission sleeve, an upper bearing, a lower bearing, and a pusher bearing; the first helical gear is coaxially arranged with and connected to the spur gear; the second helical gear is horizontally arranged and meshes with the first helical gear; the transmission sleeve is connected to the housing, and the transmission sleeve has a through cavity; the upper bearing is located at the upper end of the transmission sleeve; the lower bearing is located at the lower end of the transmission sleeve; and the cavity pusher bearing is located below the second helical gear. The transmission rod passes through the cavity of the transmission sleeve. The upper end of the transmission rod passes through the upper bearing and the rod push bearing in sequence and is fixedly connected to the second helical gear. The lower end of the transmission rod passes through the lower bearing and is connected to the auxiliary reduction gearbox.

9. The inclined-drive vertical dough mixer according to claim 8, characterized in that, The auxiliary gearbox includes: The front wheel is fixed to the lower end of the drive rod; The central shaft is fixed to the base. The middle frame is fixedly connected to the base and located below the central axis, and is used to support the central axis; The middle wheel has an upper middle wheel and a lower middle wheel; the middle wheel is sleeved on the middle shaft through a first wheel bearing and a second wheel bearing. A front belt, which is fitted around the outer periphery of the front wheel and the lower middle wheel; The last wheel is fixedly connected to the turntable shaft; The end belt is fitted around the outer periphery of the upper and lower wheels and the end wheel.

10. The inclined-drive vertical dough mixer according to claim 9, characterized in that, The mixing basin includes a basin body, a basin rim, and a basin bottom. The basin rim is located at the top of the basin body. The basin bottom is located at the bottom of the basin body. The central area of ​​the basin bottom rises upward to form a boss. The outer edge area of ​​the basin bottom extends outward in a horizontal direction to form a ring. A plurality of the locking holes are formed on the ring. The vertical dough mixer also includes a basin lid that covers the opening of the dough mixing basin; wherein, the basin lid is provided with a mounting post and a feed inlet; the side wall of the main body is provided with a mounting hole and a cover switch; when the mounting post is inserted into the mounting hole, the cover switch is triggered to connect the power supply.

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