Stirring knife and ice cream machine

Abstract

The utility model relates to the technical field of ice cream making, in particular to a stirring knife which comprises a knife shaft which is a magnet and provided with a knife shaft fixing portion. A blade fixing part matched with the cutter shaft fixing part is arranged on the blade, and the cutter shaft fixing part is fixedly connected with the blade fixing part; and the cutter shaft magnet is fixedly arranged between the cutter shaft and the cutter blades. Due to the arrangement, the stirring knife is formed by fixedly connecting the knife shaft and the knife blade, the stirring knife is convenient to assemble, the structure of the knife shaft and the knife blade which are split is relatively simple, and rapid and efficient manufacturing can be realized, so that the purpose of reducing the production cost is realized; and a cutter shaft magnet is fixed between the cutter shaft and the blade, so that when the stirring cutter is matched and connected with the stirring shaft for use, the connection is more stable, and the stirring cutter is not easy to fall off.

Description

Technical Field

[0001] The utility model relates to the technical field of ice cream making, in particular to a stirring knife and an ice cream machine. Background Art

[0002] In the Chinese utility model patent with the authorization announcement number CN216651197U, a micro-fruit puree machine is disclosed, including a housing, a power shaft, a bowl assembly and a lifting platform, wherein a blade assembly is arranged in the bowl assembly, and the lifting platform can rotate from a first position to a second position relative to the housing through a mechanical structure, so that the bowl assembly is closer to the power shaft, and the power shaft is coupled with the blade assembly in the bowl assembly. After the bowl assembly reaches the second position, it is fixed, and the lifting of the power shaft drives the blade assembly to cut, mix and stir up and down in the bowl assembly to make ice cream. The blade shaft and blade of the blade assembly of the prior art adopt an integral structure of injection molding, and its molding process is very complicated and the production cost is high; and the connection between the blade assembly and the power shaft is unstable and easy to fall off.

[0003] Therefore, there is still room for improvement and development in the existing technology. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a stirring blade, which has a simple structure and low manufacturing cost, and can ensure that the connection between the stirring blade and the stirring shaft is more stable and will not fall off.

[0005] In order to achieve the above purpose, the technical solution applied by the utility model is as follows:

[0006] A stirring knife comprises a knife shaft, wherein the knife shaft is a magnet, and a knife shaft fixing part is arranged on the knife shaft; a knife blade, wherein a knife blade fixing part is arranged on the knife blade to match with the knife shaft fixing part, and the knife shaft fixing part is fixedly connected with the knife blade fixing part; and a knife shaft magnet, wherein the knife shaft magnet is fixedly arranged between the knife shaft and the knife blade. In this way, the stirring knife is formed by the fixed connection between the knife shaft and the knife blade, and is easy to assemble; a knife shaft magnet is fixed between the knife shaft and the knife blade, so that when the stirring knife is connected with the stirring shaft for use, the connection is more stable and not easy to fall off. Compared with the prior art in which the blade shaft and blade are integrally formed by injection molding, the split blade shaft and blade structure is relatively simple and can be manufactured quickly and efficiently, thereby achieving the purpose of reducing production costs. In practical applications, since magnets cannot pass food grade, the blade shaft magnet is fixedly and sealedly installed between the blade shaft and the blade so that the blade shaft magnet will not come into contact with food when the stirring blade is working. Preferably, the blade shaft is a stainless steel magnet. It should be noted that when both the blade shaft and the blade are magnets, the blade shaft magnet can also improve the connection strength between the blade shaft and the blade.

[0007] Another stirring knife includes a knife shaft, wherein the knife shaft is a permanent magnet, and a knife shaft fixing portion is provided on the knife shaft; and a knife blade, wherein the knife blade is provided with a knife blade fixing portion that cooperates with the knife shaft fixing portion, and the knife shaft fixing portion is fixedly connected to the knife blade fixing portion. In this way, the stirring knife is formed by the knife shaft and the knife blade being fixedly connected. Compared with the prior art in which the knife shaft and the knife blade are formed by injection molding, the structure of the separated knife shaft and the knife blade is relatively simple, and can be manufactured quickly and efficiently, thereby achieving the purpose of reducing production costs; the knife shaft is a permanent magnet, so that when the stirring knife is connected to the stirring shaft for use, the connection is more stable and not easy to fall off. Preferably, the knife shaft is a stainless steel permanent magnet, and the permanent magnet is formed by magnetizing stainless steel. It should be noted that when the knife blade is a magnet, the connection strength between the knife shaft and the knife blade can also be improved.

[0008] According to the above scheme, a receiving groove for receiving the blade shaft magnet is provided on the blade shaft fixing part or the blade blade fixing part, and a blade shaft sealing ring is provided at the connection between the blade shaft fixing part and the blade blade fixing part. With this arrangement, the blade shaft magnet is positioned in the receiving groove on the blade shaft fixing part or the blade blade fixing part, and then the blade shaft fixing part and the blade blade fixing part are fixed, and under the action of the blade shaft sealing ring, the blade shaft magnet is fixed and sealed between the blade shaft and the blade. Preferably, the blade shaft fixing part is a stud provided on the blade shaft, and the blade blade fixing part is a screw hole provided on the blade. When both the blade shaft and the blade blade are magnetic bodies, under the action of the blade shaft magnet, the blade shaft fixing part can also be prevented from rotating relative to the blade blade fixing part by itself, thereby improving the connection strength between the blade shaft and the blade blade.

[0009] According to the above solution, the blade includes a blade connecting column and a plurality of mixing blades and a plurality of cutting blades evenly distributed on the periphery of the blade connecting column; the cutting blade is provided with a plurality of cutting edges, and a cutting discharge groove is formed between two adjacent cutting edges. In this way, the food cutting effect is better through the cooperation of the plurality of mixing blades and the plurality of cutting blades. Preferably, the mixing blades and the cutting blades are alternately distributed on the periphery of the blade connecting column.

[0010] The ice cream machine comprises a casing, a stirring cup assembly and the above-mentioned stirring blade, wherein a stirring shaft, a lifting platform, a lifting drive device, a stirring shaft drive device and a screw or a worm are arranged in the casing; the stirring blade is arranged in the stirring cup assembly, and the stirring cup assembly can be detachably mounted on the lifting platform, and the lifting platform is located below the stirring shaft; one end of the screw or the worm is connected to the output end of the lifting drive device, and the other end of the screw or the worm is threadedly connected to the lifting platform, and the lifting drive device drives the screw or the worm to rotate, so as to drive the lifting platform to lift and switch between a first position and a second position; the stirring shaft is arranged correspondingly to the stirring blade, and the stirring shaft drive device drives the stirring shaft to rotate, so as to drive the stirring shaft to drive the stirring blade to rotate in the stirring cup assembly. In this arrangement, when the lifting drive device drives the lifting platform to drive the stirring cup assembly to rise from the first position to the second position, the stirring shaft extends into the stirring cup assembly and is coupled to the stirring blade, and the stirring shaft is driven to rotate by the stirring shaft driving device. As the stirring cup assembly continues to approach the stirring shaft, the ingredients in the stirring cup assembly are layered, cut, mixed and stirred; when the lifting drive device drives the lifting platform to drive the stirring cup assembly to descend from the second position to the first position, the stirring blade is separated from the stirring shaft.

[0011] According to the above scheme, a stirring blade coupling part is provided on the blade shaft or blade fixing part of the stirring blade, a stirring shaft coupling part is provided at one end of the stirring shaft to cooperate with the stirring blade coupling part, and the stirring shaft coupling part is coupled and connected with the stirring blade coupling part; the stirring shaft coupling part is magnetically connected with the stirring blade, and the stirring blade and the stirring shaft are coaxially arranged after the stirring blade and the stirring shaft are attracted. With this arrangement, when the lifting drive device drives the lifting platform to drive the stirring cup assembly to rise from the first position to the second position, the stirring shaft extends into the stirring cup assembly, and is coupled and connected with the stirring blade coupling part through the stirring shaft coupling part, and under the magnetic attraction of the stirring shaft magnet and the blade shaft, the connection is more stable and will not fall off.

[0012] According to the above scheme, a stirring knife coupling part is provided on the blade shaft of the stirring knife, a stirring shaft coupling part cooperating with the stirring knife coupling part is provided at one end of the stirring shaft, and the stirring shaft coupling part is coupled and connected with the stirring knife coupling part; a sliding hole is provided in the stirring shaft, and a stirring shaft magnet, a sliding rod and an elastic part are provided in the sliding hole; the sliding rod is slidably arranged in the sliding hole, one end of the sliding rod is fixedly connected with the stirring shaft magnet, and the other end of the sliding rod extends out of the hole corresponding to the induction device; the elastic part is sleeved on the stirring shaft magnet, one end of the elastic part abuts against the sliding rod, and the other end of the elastic part abuts against the stirring shaft coupling part.

[0013] According to the above scheme, the stirring cup assembly includes a stirring cup cover and a stirring cup, the stirring cup cover and the stirring cup are detachably connected, the stirring cup cover is provided with a through hole, the stirring blade is magnetically connected to the stirring cup cover, and the blade shaft of the stirring blade is provided with a stirring blade coupling part, and the stirring blade coupling part is arranged corresponding to the through hole. In this arrangement, in the initial state, the stirring blade is adsorbed on the stirring cup cover by magnetic force, and when the lifting drive device drives the lifting platform to drive the stirring cup assembly to rise from the first position to the second position, one end of the stirring shaft extends through the through hole to couple with the stirring blade.

[0014] According to the above scheme, the stirring cup cover includes an upper cup cover and a lower cup cover, the upper cup cover is fixedly connected to the lower cup cover, a plurality of cup cover magnets are fixed between the upper cup cover and the lower cup cover, the plurality of cup cover magnets are evenly distributed on the periphery of the perforation, and the stirring blade is magnetically connected to the cup cover magnet. This arrangement can prevent the magnetic field formed by the plurality of cup cover magnets from affecting the stirring shaft and causing the stirring shaft magnet to be disturbed by the magnetic field when passing through the stirring cup cover. In practical applications, the plurality of cup cover magnets can be fixed on the upper cup cover or on the lower cup cover.

[0015] According to the above scheme, the housing is also provided with a guide assembly corresponding to the lifting platform, the guide assembly includes a guide column, a guide sleeve, an upper guide seat and a lower guide seat, the guide sleeve is fixedly connected to the lifting platform, one end of the guide column is fixedly connected to the upper guide seat, the other end of the guide column passes through the guide sleeve and is fixedly connected to the lower guide seat, and the guide sleeve is slidably connected to the guide column; the upper guide seat is provided with an upper travel switch, the lower guide seat is provided with a lower travel switch, and the lifting platform is provided with a travel touch rod, when the lifting platform rises, the travel touch rod is correspondingly set to the upper travel switch, and when the lifting platform descends, the travel touch rod is correspondingly set to the lower travel switch. This arrangement enables the lifting platform to rise and fall in a straight line along the guide column during the lifting process, and the lifting is more stable; when the lifting drive device drives the lifting platform to rise until the travel touch rod contacts the upper travel switch, the feedback control system controls the lifting drive device to reverse and drive the lifting platform to descend, and when the lifting platform descends until the travel touch rod contacts the lower travel switch, the feedback control system controls the lifting drive device to rotate forward and drive the lifting platform to rise, and this cycle is repeated to achieve the switching operation of the lifting platform between the first position and the second position.

[0016] According to the above solution, a control panel is provided on the casing.

[0017] Beneficial effects of the utility model:

[0018] The utility model is arranged such that the stirring knife is composed of a knife shaft and a knife blade fixedly connected, which is convenient to assemble. The split knife shaft and knife blade structure is relatively simple, and can achieve fast and efficient production, thereby achieving the purpose of reducing production costs. A knife shaft magnet is fixed between the knife shaft and the knife blade, so that when the stirring knife is connected to the stirring shaft for use, the connection is more stable and not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of the mixing knife;

[0020] Figure 2 yes Figure 1 Exploded image;

[0021] Figure 3 It is a schematic diagram of the blade of the mixing knife.

[0022] Figure 4 It is a schematic diagram of an ice cream machine;

[0023] Figure 5 yes Figure 4 Sectional view;

[0024] Figure 6 yes Figure 4 Exploded image;

[0025] Figure 7 The stirring shaft magnet is fixed on the stirring shaft, and the stirring assembly and the stirring cup assembly are cross-sectional views;

[0026] Figure 8 yes Figure 7 Exploded image;

[0027] Fig. 9 It’s an exploded picture of a blender cup lid;

[0028] Fig.10 is a cross-sectional view of the stirring shaft magnet sliding on the stirring shaft, and the stirring assembly and the stirring cup assembly;

[0029] Fig.11 yes Fig.10 Cross-sectional view of the stirring assembly;

[0030] Fig.12 yes Fig.11 Exploded image;

[0031] In the figure:

[0032] 1. Blade shaft; 2. Blade; 3. Mixing blade coupling; 4. Blade shaft sealing ring; 5. Blade shaft magnet; 6. Mixing blade; 7. Cutting blade; 71. Cutting edge; 72. Cutting discharge groove; 8. Blade shaft fixing part; 9. Blade fixing part; 10. Blade connecting column; 11. Mixing shaft; 12. Mixing shaft coupling part; 13. Mixing shaft magnet; 14. Mixing cup cover; 15. Mixing cup; 16. Mixing blade; 17. Upper cup cover; 18 , cup cover magnet; 19, lower cup cover; 20, sliding rod; 21, elastic member; 22, casing; 23, control panel; 24, stirring cup assembly; 25, lifting platform; 26, lifting drive device; 27, lower travel switch; 28, upper travel switch; 29, screw or worm; 30, guide column; 31, guide sleeve; 32, upper guide seat; 33, lower guide seat; 34, stirring shaft drive device; 35, travel touch rod; 36, sensing device. DETAILED DESCRIPTION

[0033] The technical solution of the utility model is described below in conjunction with the accompanying drawings and embodiments.

[0034] Embodiment 1:

[0035] like Figures 1 to 3 As shown, the stirring knife described in the utility model comprises a knife shaft 1, wherein the knife shaft 1 is a magnet, and a knife shaft fixing part 8 is provided on the knife shaft 1; a blade 2, wherein a blade fixing part 9 cooperating with the knife shaft fixing part 8 is provided on the blade 2, and the knife shaft fixing part 8 is fixedly connected with the blade fixing part 9; and a knife shaft magnet 5, wherein the knife shaft magnet 5 is fixedly arranged between the knife shaft 1 and the blade 2. In this way, the stirring knife is formed by the fixed connection between the knife shaft 1 and the blade 2, and is easy to assemble; the knife shaft magnet 5 is fixed between the knife shaft 1 and the blade 2, so that when the stirring knife is connected with the stirring shaft for use, the connection is more stable and not easy to fall off. Compared with the prior art in which the blade shaft 1 and blade 2 are formed as an integral injection-molded structure, the structure of the split blade shaft 1 and blade 2 is relatively simple and can be manufactured quickly and efficiently, thereby achieving the purpose of reducing production costs. In practical applications, since magnets cannot pass food grade, the blade shaft magnet 5 is fixedly and sealedly installed between the blade shaft 1 and the blade 2 so that the blade shaft magnet 5 will not come into contact with food when the stirring knife is working. Preferably, the blade shaft 1 is a stainless steel magnet. It should be noted that when the blade shaft 1 and blade 2 are both magnets, the blade shaft magnet 5 can also improve the connection strength between the blade shaft 1 and the blade 2.

[0036] In this embodiment, a receiving groove for receiving the blade shaft magnet 5 is provided on the blade shaft fixing part 8 or the blade fixing part 9, and a blade shaft sealing ring 4 is provided at the connection between the blade shaft fixing part 8 and the blade fixing part 9. In this arrangement, the blade shaft magnet 5 is positioned in the receiving groove on the blade shaft fixing part 8 or the blade fixing part 9, and then the blade shaft fixing part 8 and the blade fixing part 9 are fixed, and under the action of the blade shaft sealing ring 4, the blade shaft magnet 5 is fixed and sealed between the blade shaft 1 and the blade 2. Preferably, the blade shaft fixing part 8 is a stud provided on the blade shaft 1, and the blade fixing part 9 is a screw hole provided on the blade 2. When both the blade shaft 1 and the blade 2 are magnetic bodies, under the action of the blade shaft magnet 5, the blade shaft fixing part 8 can also be prevented from rotating relative to the blade fixing part 9, thereby improving the connection strength between the blade shaft 1 and the blade 2.

[0037] In this embodiment, the blade 2 includes a blade connection column 10 and a plurality of mixing blades 6 and a plurality of cutting blades 7 evenly distributed on the periphery of the blade connection column 10; the cutting blade 7 is provided with a plurality of cutting edges 71, and a cutting discharge groove 72 is formed between two adjacent cutting edges 71. In this way, the food cutting effect is better through the cooperation of the plurality of mixing blades 6 and the plurality of cutting blades 7. Preferably, the mixing blades 6 and the cutting blades 7 are alternately distributed on the periphery of the blade connection column 10.

[0038] like Figures 4 to 9 As shown, the ice cream machine comprises a casing 22, a mixing cup assembly 24 and the above-mentioned mixing blade 16, wherein the casing 22 is provided with a mixing shaft 11, a lifting platform 25, a lifting drive device 26, a screw or worm 29 and a mixing shaft drive device 34; the mixing blade 16 is arranged in the mixing cup assembly 24, and the mixing cup assembly 24 is detachably mounted on the lifting platform 25, and the lifting platform 25 is located below the mixing shaft 11; one end of the screw or worm 29 is connected to the output end of the lifting drive device 26, and the other end of the screw or worm 29 is threadedly connected to the lifting platform 25, and the lifting drive device 26 drives the screw or worm 29 to rotate, so as to drive the lifting platform 25 to lift and switch between the first position and the second position; the mixing shaft 11 is arranged correspondingly to the mixing blade 16, and the mixing shaft drive device 34 drives the mixing shaft 11 to rotate, so as to realize that the mixing shaft 11 drives the mixing blade 16 to rotate in the mixing cup assembly 24. In this arrangement, when the lifting drive device 26 drives the lifting platform 25 to drive the mixing cup assembly 24 to rise from the first position to the second position, the mixing shaft 11 extends into the mixing cup assembly 24 and is coupled to the mixing blade 16, and the mixing shaft 11 is driven to rotate by the mixing shaft driving device 34. When the mixing cup assembly 24 continues to approach the mixing shaft 11, the ingredients in the mixing cup assembly 24 are layered, cut, mixed and stirred; when the lifting drive device 26 drives the lifting platform 25 to drive the mixing cup assembly 24 to descend from the second position to the first position, the mixing blade 16 is separated from the mixing shaft 11.

[0039] In this embodiment, a stirring blade coupling portion 3 is provided on the blade shaft 1 or blade fixing portion 9 of the stirring blade 16, and a stirring shaft coupling portion 12 cooperating with the stirring blade coupling portion 3 is provided at one end of the stirring shaft 11, and the stirring shaft coupling portion 12 is coupled and connected with the stirring blade coupling portion 3; the stirring shaft coupling portion 12 is magnetically connected with the stirring blade 16, and the stirring blade 16 and the stirring shaft 11 are coaxially arranged after the stirring blade 16 is attracted. In this arrangement, when the lifting drive device 26 drives the lifting platform 25 to drive the stirring cup assembly 24 to rise from the first position to the second position, the stirring shaft 11 extends into the stirring cup assembly 24, and is coupled and connected with the stirring blade coupling portion 3 through the stirring shaft coupling portion 12, and under the magnetic attraction of the stirring shaft magnet 13 and the blade shaft 1, the connection is more stable and will not fall off.

[0040] In this embodiment, the mixing cup assembly 24 includes a mixing cup cover 14 and a mixing cup 15, the mixing cup cover 14 and the mixing cup 15 are detachably connected, a through hole is provided on the mixing cup cover 14, a mixing blade 16 is magnetically connected to the mixing cup cover 14, a mixing blade coupling part 3 is provided on the blade shaft 1 of the mixing blade 16, and the mixing blade coupling part 3 is arranged corresponding to the through hole. In this arrangement, in the initial state, the mixing blade 16 is adsorbed on the mixing cup cover 14 by magnetic force, and when the lifting drive device 26 drives the lifting platform 25 to drive the mixing cup assembly 24 to rise from the first position to the second position, the other end of the stirring shaft 11 extends through the through hole to couple with the mixing blade 16.

[0041] In this embodiment, the stirring cup cover 14 includes an upper cup cover 17 and a lower cup cover 19, the upper cup cover 17 is fixedly connected to the lower cup cover 19, a plurality of cup cover magnets 18 are fixed between the upper cup cover 17 and the lower cup cover 19, the plurality of cup cover magnets 18 are evenly distributed on the periphery of the perforation, and the stirring blade 16 is magnetically connected to the cup cover magnet 18. This arrangement can prevent the magnetic field formed by the plurality of cup cover magnets 18 from affecting the stirring shaft 11 and driving the stirring shaft magnet 13 to pass through the stirring cup cover 14 and being disturbed by the magnetic field. In practical applications, the plurality of cup cover magnets 18 can be fixed on the upper cup cover 17 or on the lower cup cover 19.

[0042] In this embodiment, the casing 22 is further provided with a guide assembly corresponding to the lifting platform 25, and the guide assembly includes a guide column 30, a guide sleeve 31, an upper guide seat 32 and a lower guide seat 33. The guide sleeve 31 is fixedly connected to the lifting platform 25, one end of the guide column 30 is fixedly connected to the upper guide seat 32, and the other end of the guide column 30 passes through the guide sleeve 31 and is fixedly connected to the lower guide seat 33, and the guide sleeve 31 is slidably connected to the guide column 30; an upper travel switch 28 is provided on the upper guide seat 32, a lower travel switch 27 is provided on the lower guide seat 33, and a travel touch rod 35 is provided on the lifting platform 25. When the lifting platform 25 rises, the travel touch rod 35 is corresponding to the upper travel switch 28, and when the lifting platform 25 descends, the travel touch rod 35 is corresponding to the lower travel switch 27. With this arrangement, the lifting platform 25 can be lifted and lowered in a straight line along the guide column 30 during the lifting process, and the lifting and lowering is more stable; when the lifting drive device 26 drives the lifting platform 25 to rise until the travel contact rod 35 contacts the upper travel switch 28, the feedback control system controls the lifting drive device 26 to reverse and drive the lifting platform 25 to descend; when the lifting platform 25 descends until the travel contact rod 35 contacts the lower travel switch 27, the feedback control system controls the lifting drive device 26 to rotate forward and drive the lifting platform 25 to rise, and the cycle is repeated to switch the lifting platform 25 between the first position and the second position, so that the stirring shaft 11 drives the stirring blade 16 to cut and mix the food in layers in the stirring cup assembly 24.

[0043] In this embodiment, a control panel 23 is disposed on the housing 22 .

[0044] Embodiment 2:

[0045] The another stirring knife comprises a knife shaft 1, wherein the knife shaft 1 is a permanent magnet, and a knife shaft fixing portion 8 is provided on the knife shaft 1; and a blade 2, wherein a blade fixing portion 9 cooperating with the knife shaft fixing portion 8 is provided on the blade 2, and the knife shaft fixing portion 8 is fixedly connected to the blade fixing portion 9. In this way, the stirring knife is formed by the knife shaft 1 and the blade 2 being fixedly connected. Compared with the prior art in which the knife shaft 1 and the blade 2 are formed by injection molding, the structure of the separated knife shaft 1 and the blade 2 is relatively simple, and fast and efficient production can be achieved, thereby achieving the purpose of reducing production costs; the knife shaft 1 is a permanent magnet, so that when the stirring knife is connected to the stirring shaft for use, the connection is more stable and not easy to fall off. Preferably, the knife shaft 1 is a stainless steel permanent magnet, and the permanent magnet is formed by magnetizing stainless steel. It should be noted that when the blade 2 is a magnet, the connection strength between the knife shaft 1 and the blade 2 can also be improved by the knife shaft 1.

[0046] The difference between the second embodiment and the first embodiment is that: in the first embodiment, the blade shaft 1 is a magnetic attraction body, and is provided with a blade shaft magnet 5, which is magnetically attracted to the stirring shaft magnet 13 on the stirring shaft 11 and the cup cover magnet 18 on the stirring cup cover 14 through the blade shaft magnet 5, while in the second embodiment, the blade shaft 1 is set as a permanent magnet, which is magnetically attracted to the stirring shaft magnet 13 on the stirring shaft 11 and the cup cover magnet 18 on the stirring cup cover 14 through the blade shaft 1; the rest of the structure and principle are the same as those in the first embodiment, and will not be repeated.

[0047] Embodiment three:

[0048] like Figures 10 to 12 As shown, a stirring blade coupling portion 3 is provided on the blade shaft 1 of the stirring blade 16, a stirring shaft coupling portion 12 cooperating with the stirring blade coupling portion 3 is provided at one end of the stirring shaft 11, and the stirring shaft coupling portion 12 is coupled and connected with the stirring blade coupling portion 3; a sliding hole is provided in the stirring shaft 11, and a stirring shaft magnet 13, a sliding rod 20 and an elastic member 21 are provided in the sliding hole; the sliding rod 20 is slidably arranged in the sliding hole, one end of the sliding rod 20 is fixedly connected with the stirring shaft magnet 13, and the other end of the sliding rod 20 extends out of the hole corresponding to the induction device 36; the elastic member 21 is sleeved on the stirring shaft magnet 13, one end of the elastic member 21 abuts against the sliding rod 20, and the other end of the elastic member 21 abuts against the stirring shaft coupling portion 12.

[0049] The difference between the third embodiment and the first embodiment is that: in the first embodiment, the stirring shaft magnet 13 is fixed on the stirring shaft coupling part 12, and in the second embodiment, the stirring shaft magnet 13 is movably located inside the stirring shaft 11; the principle of the sensing device 36 in the first embodiment is realized by the sensing sheet, and the principle of the sensing device 36 in the second embodiment is realized by the contact and separation of the sliding rod 20. More specifically, in the initial state, under the elastic force of the elastic member 21, one end of the sliding rod 20 abuts against the sensing device 36. When the stirring shaft 11 is connected to the stirring blade 16, the stirring shaft magnet 13 drives the sliding rod 20 to move downward, compresses the elastic member 21, and the sensing device 36 feeds back to the control system. When the stirring shaft 11 is separated from the stirring blade 16, the elastic member 21 is released, and the elastic member 21 pushes one end of the sliding rod 20 to abut against the sensing device 36. The remaining structures and principles are the same as those in the first embodiment and will not be repeated.

[0050] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which belong to the protection scope of the present invention.

Claims

1. A stirring blade, characterized in that: include: A knife shaft, wherein the knife shaft is a magnet, and a knife shaft fixing portion is provided on the knife shaft; A blade, wherein the blade is provided with a blade fixing portion cooperating with a blade shaft fixing portion, and the blade shaft fixing portion is fixedly connected to the blade fixing portion; The knife shaft magnet is fixed between the knife shaft and the knife blade.

2. A stirring blade according to claim 1, characterized in that: The knife shaft fixing part or the knife blade fixing part is provided with a receiving groove for receiving the knife shaft magnet, and a knife shaft sealing ring is provided at the connection between the knife shaft fixing part and the knife blade fixing part.

3. A stirring blade, characterized in that: include: A knife shaft, wherein the knife shaft is a permanent magnet and a knife shaft fixing portion is provided on the knife shaft; The blade is provided with a blade fixing portion cooperating with the blade shaft fixing portion, and the blade shaft fixing portion is fixedly connected to the blade fixing portion.

4. A stirring blade according to any one of claims 1 and 3, characterized in that: The blade comprises a blade connecting column and a plurality of mixed blades and a plurality of cutting blades evenly distributed on the periphery of the blade connecting column; the cutting blade is provided with a plurality of cutting edges, and a cutting discharge groove is formed between two adjacent cutting edges.

5. An ice cream machine, characterized in that: The invention comprises a casing, a stirring cup assembly and a stirring blade as claimed in any one of claims 1 and 3, wherein a stirring shaft, a lifting platform, a lifting drive device, a stirring shaft drive device and a screw or worm are arranged in the casing; the stirring blade is arranged in the stirring cup assembly, and the stirring cup assembly can be detachably mounted on the lifting platform, and the lifting platform is located below the stirring shaft; one end of the screw or worm is connected to the output end of the lifting drive device, and the other end of the screw or worm is threadedly connected to the lifting platform, and the lifting drive device drives the screw or worm to rotate, so as to drive the lifting platform to lift and switch between a first position and a second position; the stirring shaft is arranged corresponding to the stirring blade, and the stirring shaft drive device drives the stirring shaft to rotate, so as to drive the stirring blade to rotate in the stirring cup assembly with the stirring shaft.

6. An ice cream machine according to claim 5, characterized in that: A stirring knife coupling portion is provided on the blade shaft or blade fixing portion of the stirring knife, a stirring shaft coupling portion matching the stirring knife coupling portion is provided at one end of the stirring shaft, and the stirring shaft coupling portion is coupled and connected to the stirring knife coupling portion; the stirring shaft coupling portion is magnetically connected to the stirring knife, and after the stirring knife is attracted to the stirring shaft, the rotating shaft is coaxially arranged.

7. The ice cream machine according to claim 5, characterized in that: A stirring knife coupling portion is provided on the blade shaft of the stirring knife, a stirring shaft coupling portion cooperating with the stirring knife coupling portion is provided at one end of the stirring shaft, and the stirring shaft coupling portion is coupled and connected with the stirring knife coupling portion; a sliding hole is provided in the stirring shaft, and a stirring shaft magnet, a sliding rod and an elastic member are provided in the sliding hole; the sliding rod is slidably arranged in the sliding hole, one end of the sliding rod is fixedly connected with the stirring shaft magnet, and the other end of the sliding rod protrudes from the hole corresponding to the induction device; the elastic member is sleeved on the stirring shaft magnet, one end of the elastic member abuts against the sliding rod, and the other end of the elastic member abuts against the stirring shaft coupling portion.

8. The ice cream machine according to claim 5, characterized in that: The stirring cup assembly includes a stirring cup cover and a stirring cup, the stirring cup cover and the stirring cup are detachably connected, the stirring cup cover is provided with a through hole, the stirring knife is magnetically connected to the stirring cup cover, the blade shaft of the stirring knife is provided with a stirring knife coupling part, and the stirring knife coupling part is arranged corresponding to the through hole.

9. An ice cream machine according to claim 8, characterized in that: The stirring cup cover comprises an upper cup cover and a lower cup cover, wherein the upper cup cover is fixedly connected to the lower cup cover, a plurality of cup cover magnets are fixed between the upper cup cover and the lower cup cover, the plurality of cup cover magnets are evenly distributed on the periphery of the perforation, and the stirring blade is magnetically connected to the cup cover magnet.

10. The ice cream machine according to claim 5, characterized in that: The casing is also provided with a guide assembly corresponding to the lifting platform, the guide assembly includes a guide column, a guide sleeve, an upper guide seat and a lower guide seat, the guide sleeve is fixedly connected to the lifting platform, one end of the guide column is fixedly connected to the upper guide seat, the other end of the guide column passes through the guide sleeve and is fixedly connected to the lower guide seat, and the guide sleeve is slidably connected to the guide column; an upper travel switch is provided on the upper guide seat, a lower travel switch is provided on the lower guide seat, and a travel touch rod is provided on the lifting platform. When the lifting platform rises, the travel touch rod is corresponding to the upper travel switch, and when the lifting platform descends, the travel touch rod is corresponding to the lower travel switch.

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