CN117414061A - Mixer with liftable stirring blade and control method thereof - Google Patents

Abstract

The invention discloses a stirrer with liftable stirring blades and a control method thereof, wherein the stirrer with liftable stirring blades comprises a stirring cup and a stirring blade assembly arranged in the stirring cup, the stirring blade assembly comprises a cutter shaft rotatably arranged at the stirring cup and at least one movable blade sleeved on the cutter shaft in a vertically sliding manner, each movable blade can be driven to rotate when being rotated by the cutter shaft, each movable blade is provided with a stressed inclined surface, and the stressed inclined surface forms an inclined angle with the rotation plane of the movable blade. The stirring effect is more uniform than in the conventional scheme. The lifting movement of the movable knife can be realized without a complex product structure or an additional motor or gear system for driving the movable knife, so that the manufacturing cost of the stirrer can be greatly reduced, and the reliability is greatly improved due to the simple structure.

Description

Mixer with liftable stirring blade and control method thereof

Technical Field

The invention relates to the technical field of food processing equipment, in particular to a stirrer with a liftable stirring blade and a control method thereof.

Background

Blenders, also known as food processors, or food processors, may be used to chop, blend or mix various foods and beverages, such as liquids and solids, e.g., ice, fruit or vegetables.

The stirring blades of most stirring machines are fixed in the stirring cup along the axial direction of the cutter shaft, so that the stirring blades cannot move up and down to realize three-dimensional stirring, and the stirring effect and the stirring efficiency are relatively low.

As in the chinese patent application No. 2021215895611, a food processor is disclosed, the chinese patent application No. 2018208581533 discloses a vertical floating assembly and a stirrer thereof, the chinese patent application No. 2021205785278 discloses a cover assembly for use with a micro-fruit puree machine, the chinese patent application No. 2021209064254 discloses a food processor, and a stirring blade of the disclosed stirrer can move along a direction of a cutter shaft, but the structure of the product is too complex, and an additional motor or gear system is required to drive the stirring blade to realize lifting movement of the stirring blade, thereby increasing manufacturing cost of the stirrer and reducing reliability due to complex structure.

Disclosure of Invention

The invention aims to solve the technical problem of how to design a stirrer with a simple structure and a stirring knife capable of moving up and down, so that the manufacturing cost of the stirrer is reduced, and the reliability of the stirrer is improved.

The technical problems to be solved by the invention are realized by the following technical scheme:

in order to solve the technical problems, the invention provides a stirring machine with liftable stirring blades, which comprises a stirring cup and a stirring blade assembly arranged in the stirring cup, wherein the stirring blade assembly comprises a cutter shaft rotatably arranged at the stirring cup and at least one movable blade sleeved on the cutter shaft in a vertically sliding manner, each movable blade can be driven to rotate when the cutter shaft rotates, each movable blade is provided with a stress inclined surface, and the stress inclined surface forms an inclined angle with the rotating plane of the movable blade.

As a preferable implementation mode of the stirrer with the liftable stirring blade, the initial position of the movable blade is positioned at the lower end of the cutter shaft, and the angle of the inclined angle of the stress inclined plane can enable the movable blade to be stressed to move upwards during stirring.

As a preferable implementation mode of the stirrer with the liftable stirring blade, the movable blade is connected with a reset device.

As a preferable implementation mode of the stirrer with the liftable stirring blade, the initial position of the movable blade is positioned at the upper end of the cutter shaft, and the angle of the inclined angle of the stress inclined plane can enable the movable blade to be stressed to move downwards during stirring.

As a preferable implementation mode of the stirring machine with the liftable stirring blade, the reset device is an elastic element or an air pump reset component.

As a preferable implementation mode of the stirring machine with the liftable stirring blade, the elastic element is a return spring, and a protective sleeve is sleeved outside the return spring.

As a preferable implementation mode of the stirrer with the liftable stirring blade, provided by the invention, a limiting block is fixed at the tail end of the cutter shaft.

As a preferable implementation mode of the stirrer with the liftable stirring blade, at least one fixed blade is fixed at one end of the cutter shaft.

As a preferable implementation mode of the stirrer with the liftable stirring blade, the bottom of the stirring cup is provided with a blade seat, and the blade seat is provided with a clutch which is connected with the stirring blade assembly.

The invention also provides a control method of the stirrer with the liftable stirring blades, which comprises a cutter shaft and at least one movable blade sleeved on the cutter shaft in a vertically sliding way, wherein the movable blade can be driven to rotate when the cutter shaft rotates, each movable blade is provided with a stress inclined plane, the stress inclined planes and the rotating plane of the movable blade form an inclined angle, the initial position of the movable blade is positioned at the lower end of the cutter shaft, the movable blade can be forced to move upwards when stirring is carried out due to the arrangement of the inclined angle of the stress inclined plane, the cutter shaft is connected with a driving motor, and when the position of the movable blade is positioned at the initial position, the driving motor drives the cutter shaft and the movable blade to rotate at a high rotating speed and enables the movable blade to ascend along the cutter shaft; when the position of the movable knife reaches the set position, the driving motor drives the cutter shaft and the movable knife to rotate at a low rotating speed and enables the movable knife to descend along the cutter shaft.

The invention has the following beneficial effects:

because the movable cutters can be driven to rotate by the cutter shafts when the cutter shafts rotate, each movable cutter is provided with a stress inclined plane, an inclined angle is formed between the stress inclined plane and the rotating plane of the movable cutter, when the movable cutter rotates, the stress inclined plane is subjected to the pressure action of food materials and the counter force generated by stirring liquid, so that the inclined acting force is applied, the inclined acting force can be decomposed into lifting force in the vertical direction and resistance in the horizontal direction, when the direction of the stress inclined plane faces downwards, the lifting force is generated, when the direction of the stress inclined plane faces upwards, the force is generated, the rotating speed of the movable cutters is higher, and the acting force is larger, so that the movable cutters can ascend or descend along the cutter shafts. And the lifting distance of the movable knife is limited only by the length of the knife shaft, the longer the knife shaft is, the larger the lifting distance of the knife shaft is, and the longer the lifting distance is than in the traditional scheme, so that the stirring effect is more uniform. The lifting movement of the movable knife can be realized without a complex product structure or an additional motor or gear system for driving the movable knife, so that the manufacturing cost of the stirrer can be greatly reduced, and the reliability is greatly improved due to the simple structure.

Drawings

For a clearer description of the solution in the present application, a brief description will be given below of the drawings that are needed in the description of the embodiments, it being obvious that the drawings in the following description are some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an embodiment 1 of a mixer with a liftable stirring blade.

Fig. 2 is a cross-sectional view at A-A of fig. 1.

Fig. 3 is a schematic view of the structure of the stirring blade assembly in fig. 2.

Fig. 4 is a cross-sectional view at B-B of fig. 3.

Fig. 5 is a schematic view of the direction of rotation and force applied to the movable blade in the cross section at C-C of the movable blade in fig. 4.

Fig. 6 is a schematic view showing the first modified movable blade rotation up condition provided in fig. 5.

Fig. 7 is a schematic view showing the second modified movable blade rotation up condition provided in fig. 5.

Fig. 8 is a schematic view of the third modified movable blade rotation descent provided in fig. 5.

Fig. 9 is a schematic view showing a fourth modified rotary descent of the movable blade provided in fig. 5.

Fig. 10 is a perspective view of fig. 3.

Fig. 11 is a schematic structural diagram of an embodiment 2 of a mixer with a liftable stirring blade.

Fig. 12 is a cross-sectional view at D-D of fig. 11.

Fig. 13 is a schematic structural diagram of an embodiment 3 of a mixer with a liftable stirring blade.

Fig. 14 is a cross-sectional view at E-E of fig. 13.

Fig. 15 is a schematic structural diagram of an embodiment 4 of a mixer with a liftable stirring blade.

Fig. 16 is a cross-sectional view at F-F of fig. 15.

Fig. 17 is a perspective view of fig. 15.

Fig. 18 is a schematic structural diagram of an embodiment 5 of a mixer with a liftable stirring blade.

Fig. 19 is a schematic view of the hidden portion of the blender blade assembly at the blender cup of fig. 18.

Fig. 20 is an enlarged view at G in fig. 19.

Fig. 21 is a schematic view of the structure of the stirring blade assembly of fig. 18.

Fig. 22 is a schematic structural diagram of an embodiment 6 of a mixer with a liftable stirring blade.

Fig. 23 is a schematic view of the structure of the stirring blade assembly of fig. 22.

Fig. 24 is a perspective view of fig. 23.

Fig. 25 is another angular perspective view of fig. 23.

Fig. 26 is a schematic structural diagram of an embodiment 7 of a mixer with a liftable stirring blade.

Fig. 27 is a perspective view of fig. 26.

Fig. 28 is a schematic structural view of an embodiment 8 of a mixer with a liftable stirring blade.

Fig. 29 is a schematic view of the structure of the stirring blade assembly of fig. 28.

Fig. 30 is a perspective view of fig. 29.

Fig. 31 is a schematic structural view of an embodiment 9 of a mixer with a liftable stirring blade.

Fig. 32 is a schematic view of the blender blade assembly of fig. 31.

Fig. 33 is a perspective view of fig. 32.

Reference numerals illustrate:

a stirring cup 1; a stirring blade assembly 2; a cup cover 11; a cutter shaft 21; a movable knife 22; a force-receiving inclined surface 221; an inclination angle 222; a stopper 23; a movable seat 24; a reset means 25; a stationary knife 26; a tool holder 27; a clutch 28; an air pump 251 air pipe 252; a driver 253; a protective sheath 29.

Detailed Description

In order that those skilled in the art will better understand the present invention, a technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.

The invention provides a stirring machine with liftable stirring blades, which comprises a stirring cup and a stirring blade assembly arranged in the stirring cup, wherein the stirring blade assembly comprises a cutter shaft rotatably arranged at the stirring cup and at least one movable blade sleeved on the cutter shaft in a vertically sliding manner, each movable blade can be driven to rotate when being rotated by the cutter shaft, each movable blade is provided with a stress inclined surface, and the stress inclined surface and the rotating plane of the movable blade form an inclined angle.

Because the movable cutters can be driven to rotate by the cutter shafts when the cutter shafts rotate, each movable cutter is provided with a stress inclined plane, an inclined angle is formed between the stress inclined plane and the rotating plane of the movable cutter, when the movable cutter rotates, the stress inclined plane is subjected to the pressure action of food materials and the counter force generated by stirring liquid, so that the inclined acting force is applied, the inclined acting force can be decomposed into lifting force in the vertical direction and resistance in the horizontal direction, when the direction of the stress inclined plane faces downwards, the lifting force is generated, when the direction of the stress inclined plane faces upwards, the force is generated, the rotating speed of the movable cutters is higher, and the acting force is larger, so that the movable cutters can ascend or descend along the cutter shafts. And the lifting distance of the movable knife is limited only by the length of the knife shaft, the longer the knife shaft is, the larger the lifting distance of the knife shaft is, and the longer the lifting distance is than in the traditional scheme, so that the stirring effect is more uniform. The lifting movement of the movable knife can be realized without a complex product structure or an additional motor or gear system for driving the movable knife, so that the manufacturing cost of the stirrer can be greatly reduced, and the reliability is greatly improved due to the simple structure.

In order to better understand the technical solutions of the present application, the following description will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the accompanying drawings. The present invention is described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.

Example 1

Referring to fig. 1 to 10, the stirring machine with liftable stirring blades provided by the invention comprises a stirring cup 1 and a stirring blade assembly 2, wherein a cup cover 11 is arranged on the stirring cup 1, the stirring blade assembly 2 is arranged in the stirring cup 1, the stirring blade assembly 2 comprises a cutter shaft 21 and movable blades 22, the movable blades 22 can be a plurality of movable blade assemblies, 4 movable blades 22 in the embodiment form a group, the movable blades 22 of the movable blade assemblies extend towards two sides of a rotating shaft, the extending direction of blades of the movable blades 22 can be horizontal, and can also be downwards or downwards bent for a certain angle or shape, and the number of the movable blades 22 in the movable blade assemblies is preferably 2 or more than 2, and the movable blades 22 are uniformly distributed along the radial direction of the cutter shaft. The cutter shaft 21 is connected with a driving motor, the cutter shaft 21 is rotatably arranged at the bottom of the stirring cup 1, the movable cutter 22 or the movable cutter component is sleeved on the cutter shaft 21 in a vertically sliding way, the movable cutter 22 is provided with a stress inclined plane 221, the stress inclined plane 221 can be arranged above or below the movable cutter 22, and an inclined angle 222 is formed between the stress inclined plane 221 and the rotation plane of the movable cutter 22. In this embodiment, the initial position of the movable blade 22 or the movable blade assembly is located at the lower end of the cutter shaft 21 near the cup bottom, and the angle of the inclined angle 222 of the force-bearing inclined surface 221 is set so that the movable blade 22 or the movable blade assembly can be forced to move upwards during stirring. When the stirrer is started, the cutter shaft 21 rotates to drive the movable cutter 22 or the movable cutter assembly to rotate, the movable cutter 22 or the movable cutter assembly can be forced to move upwards when stirring due to the arrangement of the angle of the inclined angle 222 of the forced inclined plane 221, the inclined upward acting force generated by the pressure action of food materials and the reaction force generated by stirring liquid can be decomposed into upward lifting force and horizontal resistance, the horizontal resistance can be overcome and offset by the rotation moment generated by the working of the motor, so that the movable cutter 22 or the movable cutter assembly can rotate and stir, the higher the rotating speed of the movable cutter 22 or the movable cutter assembly is, the higher the upward lifting force is, the movable cutter 22 or the movable cutter assembly can be lifted when the lifting force is higher than the self gravity and the resistance of the food materials, and the movable cutter 22 or the movable cutter assembly can be lowered when the lifting force is lower than the self gravity and the resistance of the food materials, namely the lifting or the lowering of the movable cutter 22 or the movable cutter assembly can be controlled by controlling the rotating speed of the movable cutter 22 or the movable cutter assembly without controlling the rotating speed of the movable cutter 22 or the movable cutter assembly.

It should be noted that the shape of the stress slope 221 is not limited, and may be a plane without radian or a curved surface with a certain radian, such as a complex curved shape of a fan blade.

The greater the angle of inclination 222 formed by the force bevel 221 and the plane of rotation of the movable blade 22, the greater the force and therefore the greater the load.

Referring to fig. 5, in the present embodiment, when the blade plane of the movable blade 22 is parallel to the rotation plane, the cutting edge of the movable blade 22 is used as the force-bearing inclined plane 221, the included angle between the cutting edge and the rotation plane is the inclined angle 222, and the inclined angle 222 formed by the force-bearing inclined plane 221 and the rotation plane of the movable blade 22 is preferably 1 ° to 60 °.

Referring to fig. 6 and 9, fig. 6 and 7 are schematic diagrams illustrating the situation when the movable blade 22 is rotated up, fig. 8 and 9 are schematic diagrams illustrating the situation when the movable blade 22 is rotated down, when the blade plane of the movable blade 22 forms a certain angle with the rotation plane, the blade plane of the movable blade 22 is taken as a stress inclined plane 221, the angle between the blade plane of the movable blade 22 and the rotation plane is taken as an inclined angle 222, and the angle between the blade plane of the movable blade 22 and the rotation plane of the movable blade 22 is preferably 0 ° to 15 °.

Further, the end of the cutter shaft 21 is fixed with a limiting block 23, so that the movable cutter 22 or the movable cutter assembly can be limited by the limiting block 23 when being lifted to the end of the cutter shaft 21, thereby avoiding the situation that the movable cutter 22 or the movable cutter assembly is separated from the cutter shaft 21, improving the stability and safety of the product, and in other embodiments, the cup cover 11 can also be used for limiting.

Further, the cross-sectional shape of the cutter shaft 21 is a racetrack or D-shape, and the cross-sectional shape thereof is not completely circular, so that the cutter shaft 21 can apply a rotational force to the movable cutter 22 or the movable cutter assembly when rotating.

Further, the cutter shaft 21 is slidably sleeved with a movable seat 24, and the movable cutter 22 or the movable cutter assembly is fixed on the movable seat 24.

Further, a balancing weight is fixed on the movable knife 22 or the movable knife assembly, and the self weight of the movable knife 22 or the movable knife assembly is adjusted through the balancing weight, so that the movable knife 22 or the movable knife assembly can be lifted after a certain rotating speed is reached, and the lifting of the movable knife 22 or the movable knife assembly when different rotating speeds are reached is controlled through changing the weight of the balancing weight.

Example 2

Referring to fig. 11 and 12, as a further optimization of embodiment 1, the difference from embodiment 1 is that the movable blade 22 or the movable blade assembly in this embodiment is connected with a reset device 25, and the reset device 25 in this embodiment is a reset spring, and in other embodiments, other reset devices 25, such as magnets with opposite magnetic poles, etc., may be selected, as long as the movable blade 22 or the movable blade assembly can be restored to the initial position. The reset spring is sleeved on the cutter shaft 21, one end of the reset spring is connected with the movable cutter 22 or the movable cutter assembly, and the other end of the reset spring is connected with the limiting block 23, when the rotating speed of the movable cutter 22 or the movable cutter assembly is high enough, and the lifting force is high enough, the movable cutter 22 or the movable cutter assembly can overcome the self gravity, the resistance of the reset spring and the resistance of food materials to rise; when the rotation speed of the movable knife 22 or the movable knife assembly is lower, and the lifting force is smaller, the movable knife 22 or the movable knife assembly is reset under the action of the reset spring, so that the movable knife 22 or the movable knife assembly can be lifted and lowered.

Example 3

Referring to fig. 13 and 14, as a further optimization of embodiment 2, the difference from embodiment 1 is that a fixed knife 26 is fixed at the other end of the knife shaft 21 in this embodiment. The fixed knife 26 is fixed and always stirs the food materials at the same position, and the movable knife 22 or the movable knife assembly can stir the food materials at different positions when lifting, so that the stirring efficiency and the stirring effect can be improved. In other embodiments, there may be two or more fixed knives 26, and the two fixed knives 26 are respectively disposed at two ends of the cutter shaft 21, so as to further improve the stirring efficiency and stirring effect.

Example 4

Referring to fig. 15 to 17, as a further optimization scheme of embodiment 3, the difference from embodiment 1 is that the initial position of the movable blade 22 or the movable blade assembly in this embodiment is located at the upper end of the cutter shaft 21, the angle of the inclined angle 222 of the stress slope 221 is set so that the movable blade 22 or the movable blade assembly can be forced to move downward during stirring, and the principle of action is the same as that of embodiment 1, when the movable blade 22 or the movable blade assembly rotates, the forced direction of the movable blade 22 or the movable blade assembly is downward, that is, the movable blade 22 or the movable blade assembly can move downward.

Example 5

Referring to fig. 18 to 21, as a further optimization of embodiment 3, the difference from embodiment 1 is that the bottom of the stirring cup 1 in this embodiment is provided with a cutter holder 27, the cutter shaft 11 is rotatably disposed on the cutter holder 27, and more preferably, a bearing is disposed between the cutter holder 27 and the cutter shaft 21. The tool apron 27 can be integrally formed with the bottom of the stirring cup 1 and is not detachable, the bottom of the stirring cup 1 is directly provided with a bearing, the cutter shaft 21 is arranged at the bottom of the stirring cup through the bearing, or the tool apron 27 which is detachable as shown in embodiment 1 is arranged at the bottom of the stirring cup 1, the bearing is arranged in the tool apron, and the cutter shaft 21 is arranged at the bottom of the stirring cup through the tool apron 27. In this embodiment, the movable blade 22 or the movable blade assembly is located above the blade holder 27, and in other embodiments, such as in designs where some host machines are located below the upper mixing cup 1, the movable blade 22 or the movable blade assembly may be located below the blade holder 27. The cutter holder 27 is provided with a clutch 28, the clutch 28 is connected with the stirring cutter assembly 2, the clutch 28 can enable the stirring cutter assembly 2 at the upper part to be connected with or separated from the cutter holder 27, namely, the cutter shaft 21, the movable cutter 22, the limiting block 23, the movable seat 24, the reset device 25 and the fixed cutter 26 can be connected with or separated from the cutter holder 27, so that the stirring cutter assembly 2 can be independently used as a detachable assembly, and the stirring cutter assembly 2 can be detached conveniently. More preferably, the movable knife assemblies in this embodiment have two groups, the knife shaft 21 is sleeved with the movable seat 24, and the two groups of movable knife assemblies are all fixed on the same movable seat 24, so that the two groups of movable knife assemblies can be lifted or lowered simultaneously.

Example 6

Referring to fig. 22 to 25, as a further optimization scheme of embodiment 5, the difference from embodiment 5 is that one end of the cutter shaft 21 in this embodiment is not provided with a fixed knife 26, and the stirring efficiency and stirring effect can be satisfied only by stirring with two movable knife assemblies.

Example 7

Referring to fig. 26 and 27, as a further optimization of embodiment 5, the difference between the embodiment and embodiment 5 is that the movable blades 22 or the movable blade assemblies in this embodiment have two groups, and the directions of the stress inclined planes 221 of the two groups of movable blades 22 or the movable blade assemblies are opposite, that is, the angle of the inclined angle 222 of the stress inclined plane 221 of the upper movable blade 22 is set such that the movable blade 22 can be forced to move downward during stirring, and the angle of the inclined angle 222 of the stress inclined plane 221 of the lower movable blade 22 can be forced to move upward during stirring, and more preferably, the two groups of movable blades 22 or the movable blade assemblies are provided with movable seats 24, and each group of movable blades 22 or movable blade assemblies is correspondingly disposed on the corresponding movable seat 24. When the cutter shaft 21 rotates, the moving directions of the two groups of movable cutters 22 or movable cutter assemblies are opposite, namely the lower movable cutter 22 or movable cutter assembly moves upwards, the upper movable cutter 22 or movable cutter assembly moves downwards, an elastic element is sleeved between the two groups of movable cutters 22 or movable cutter assemblies, and when the cutter shaft 21 does not rotate or has a lower rotating speed, the lower movable cutter 22 or movable cutter assembly moves downwards under the action of the elastic element, and the upper movable cutter 22 or movable cutter assembly moves upwards under the action of the elastic element.

Example 8

Referring to fig. 28 to 30, as a further optimization scheme of embodiment 2, the difference from embodiment 2 is that the reset device 25 connected with the movable knife 22 or the movable knife assembly in this embodiment is not a reset spring, but is an air pump reset assembly, the air pump reset assembly includes an air pump 251 and an air pipe 252 connected with the air pump 251, the end of the air pipe 252 is connected with a driving member 253, the driving member 253 is connected with the movable knife 22 or the movable knife assembly or the movable seat 24, and the driving member 253 pushes the movable seat 24 to move up and down under the action of the air pump 251, so as to realize lifting of the movable knife 22 or the movable knife assembly.

Example 9

Referring to fig. 31 to 33, as a further optimization scheme of embodiment 2, the difference from embodiment 2 is that the protecting sleeve 29 is sleeved on the outer sleeve of the restoring spring in this embodiment, the shaft sleeve 21 is sleeved on the shaft sleeve, a sealing ring is arranged at one end of the protecting sleeve 29, and the protecting sleeve 29 can prevent the restoring spring from being exposed, so that the product is more attractive, and meanwhile, the later cleaning work is facilitated, so that the product is kept clean.

Referring to fig. 1 to 6, in order to further provide a control method of a stirring mill with liftable stirring blades, the stirring mill includes a cutter shaft 21 and at least one movable blade 22 or movable blade assembly, wherein each movable blade 22 or movable blade assembly is sleeved on the cutter shaft 21 in a vertically sliding manner, the movable blade 22 or movable blade assembly is driven to rotate when the cutter shaft 21 rotates, a force-bearing inclined plane 221 is arranged on each movable blade 22, an inclined angle 222 is formed between the force-bearing inclined plane 221 and a rotation plane of the movable blade 22, an initial position of the movable blade 22 or movable blade assembly is positioned at the lower end of the cutter shaft 21, the angle of the inclined angle 222 of the force-bearing inclined plane 221 can enable the movable blade 22 to move upwards under force when stirring, the cutter shaft 21 is connected with a driving motor, and when the position of the movable blade 22 or movable blade assembly is positioned at the initial position, the driving motor drives the cutter shaft 21 and the movable blade 22 or the movable blade assembly to rotate at a high rotation speed, so that the movable blade 22 or the movable blade assembly overcomes the gravity and resistance of the self-bearing force and the movable blade assembly rise along the cutter shaft 21, the larger upward force is larger, and the larger upward force is larger as the rotation speed is larger and the larger force is the longer is the larger and the blade is the longer is the larger and the upward force is also larger. When the position of the movable knife 22 or the movable knife assembly reaches the set position, the driving motor drives the knife shaft 21 and the movable knife 22 or the movable knife assembly to rotate at a low rotation speed and enables the movable knife 22 or the movable knife assembly to descend along the knife shaft 21 under the action of self gravity, namely when the rotation speed of the movable knife 22 or the movable knife assembly is n2, the lifting force of the movable knife 22 or the movable knife assembly is greater than the weight of the movable knife 22 or the movable knife assembly at the moment, the movable knife 22 or the movable knife assembly ascends, and when the rotation speed of the movable knife 22 or the movable knife assembly is n1, the lifting force of the movable knife 22 or the movable knife assembly is smaller than the weight of the movable knife 22 or the movable knife assembly at the moment, and the movable knife 22 or the movable knife assembly descends.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

It is apparent that the embodiments described above are only some embodiments of the present application, but not all embodiments, the preferred embodiments of the present application are given in the drawings, but not limiting the patent scope of the present application. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a more thorough understanding of the present disclosure. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing, or equivalents may be substituted for elements thereof. All equivalent structures made by the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the protection scope of the application.

Claims (10)

1. The utility model provides a mixer that stirring sword can rise and fall, its characterized in that includes stirring cup (1) and sets up stirring sword subassembly (2) in stirring cup (1), stirring sword subassembly (2) are including rotationally setting up arbor (21) of stirring cup (1) department and can slide from top to bottom the cover establish at least one movable sword (22) on arbor (21), every movable sword (22) all can be driven when rotating by arbor (21) and rotate, every all be provided with atress inclined plane (221) on movable sword (22), atress inclined plane (221) are formed with inclination (222) with the rotation plane of movable sword (22).

2. A mixer with liftable stirring blades according to claim 1, characterized in that the initial position of the movable blade (22) is located at the lower end of the cutter shaft (21), and the angle of the inclined angle (222) of the forced inclined surface (221) is set so that the movable blade (22) can be forced to move upwards during stirring.

3. A mixer with liftable stirring blade according to claim 1, characterized in that the movable blade (22) is connected with a resetting device (25).

4. A mixer with liftable stirring blades according to claim 3, characterized in that the initial position of the movable blade (22) is located at the upper end of the cutter shaft (21), and the angle of the inclined angle (222) of the force-bearing inclined surface (221) is set so that the movable blade (22) can be forced to move downwards during stirring.

5. A mixer with liftable stirring blade according to claim 3, characterized in that the resetting means (25) are elastic elements or air pump resetting components.

6. The mixer with liftable stirring blade according to claim 5, characterized in that said elastic element is a return spring, said return spring being sheathed with a protective sleeve (29).

7. The mixer with liftable stirring blades according to claim 1, characterized in that the end of the blade shaft (21) is fixed with a limiting block (23).

8. The mixer with liftable stirring blades according to claim 1, characterized in that at least one fixed blade (26) is fixed to one end of the blade shaft (21).

9. The mixer with the liftable stirring blade according to claim 1, wherein a blade holder (27) is arranged at the bottom of the stirring cup (1), a clutch (28) is arranged on the blade holder (27), and the clutch (28) is connected with the stirring blade assembly (2).

10. The control method of the stirring machine with the liftable stirring blades is characterized by comprising a cutter shaft (21) and at least one movable blade (22) sleeved on the cutter shaft (21) in a vertically sliding manner, wherein the movable blade (22) can be driven to rotate when the cutter shaft (21) rotates, a stress inclined surface (221) is arranged on each movable blade (22), an inclined angle (222) is formed between the stress inclined surface (221) and the rotation plane of the movable blade (22), the initial position of the movable blade (22) is positioned at the lower end of the cutter shaft (21), the inclined angle 222 of the stress inclined surface (221) is arranged to enable the movable blade (22) to move upwards under stress when stirring, the cutter shaft (21) is connected with a driving motor, and when the position of the movable blade (22) is positioned at the initial position, the driving motor drives the cutter shaft (21) and the movable blade (22) to rotate at a high rotating speed and enables the movable blade (22) to ascend along the cutter shaft (21); when the position of the movable knife (22) reaches the set position, the driving motor drives the knife shaft (21) and the movable knife (22) to rotate at a low rotating speed and enables the movable knife (22) to descend along the knife shaft (21).