Food processor capable of reciprocating

Abstract

The utility model discloses a food processor capable of reciprocating motion, which relates to the field of life electric appliances and comprises a main machine, a driving mechanism arranged in the main machine, a reciprocating motion mechanism in transmission connection with the driving mechanism and an output shaft used for being in transmission connection with a stirring piece, and the reciprocating motion mechanism comprises a first gear and a second gear. The driving mechanism comprises a motor and a driving gear, the driving gear is in transmission connection with the first gear and the second gear through an intermediate gear, and the intermediate gear comprises a third gear meshed with the driving gear, a fourth gear and a fifth gear, the fourth gear and the fifth gear are meshed with the first gear and the second gear respectively, Z3 is larger than Z6, Z1 is larger than Z4, and Z2 is larger than Z5; # imgabs0 # 15 < = f < = 50, and the food material floating cutting effect is further improved through the correlation between each tooth number ratio and the axial reciprocating motion frequency of the output shaft.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a food processing machine capable of reciprocating motion. Background Art

[0002] Existing food processors such as meat grinders include a cup body with a grinding chamber, a grinding device arranged in the grinding chamber, and a motor located under the cup body and driving the grinding device to rotate. When using the food processor, the user places the food into the grinding chamber, and the grinding device rotates at high speed driven by the motor to process the food.

[0003] However, existing food processing machines, especially meat grinders, generally have poor crushing performance when cutting food materials, especially when crushing vegetable leaves. Since the vegetable leaves are light, some of the vegetable leaves will adhere to the side or bottom of the cup body during the crushing process, and the crushing device is fixed in a horizontal position for rotation and cutting, and the vegetable leaves attached to the wall cannot be crushed, resulting in insufficient food processing. In order to solve the above problems, Chinese invention patent CN107411525B discloses an automatic lifting and rotating cutting stirring knife, which is provided with a reciprocating motion mechanism in the main machine, and the crushing device can reciprocate up and down through the motion conversion of the reciprocating motion mechanism. Although this scheme enables the crushing device to move up and down to achieve a larger range of cutting in the axial direction, the motor in this scheme directly drives the driving gear above the motor shaft and the two gears on the output shaft through meshing, resulting in a relatively low speed of the entire transmission, resulting in a high output speed of the stirring knife and a low torque, and a large load on the motor, which ultimately leads to a low cutting efficiency of the stirring knife and accelerated aging of the motor. During the research, the applicant considered adding an additional intermediate gear to reduce the speed between the driving gear and the gear on the output shaft, and increasing the reduction ratio in two stages, so as to improve the output torque of the mixing blade. However, since the axial height of the intermediate gear is too high, the bottom of the intermediate gear is subjected to a large force after meshing with the driving gear, causing the top of the intermediate gear to wobble, which leads to low meshing accuracy of each gear, thereby causing serious wear of each gear. Utility Model Content

[0004] The utility model aims to provide a food processing machine capable of reciprocating motion, which is used to make further optimization and improvement on the premise of providing an intermediate gear to increase the reduction ratio in stages so as to enhance the working stability and the crushing effect.

[0005] To achieve the above-mentioned purpose, the utility model provides a reciprocating food processing machine, comprising a main machine, a processing cup, a stirring piece arranged in the processing cup, a driving mechanism arranged in the main machine, a reciprocating mechanism connected to the driving mechanism in transmission, and an output shaft connected to the stirring piece in transmission, the reciprocating mechanism comprising a first gear and a second gear sleeved on the outer side of the output shaft, the first gear drives the output shaft to rotate circumferentially, and the second gear drives the output shaft to reciprocate axially, the driving mechanism comprises a motor and a driving gear arranged at the output end of the motor shaft of the motor, the driving gear is connected to the first gear and the second gear through an intermediate gear, the intermediate gear comprises a third gear meshed with the driving gear, and a fourth gear and a fifth gear connected to the third gear in transmission, and the fourth gear and the fifth gear are meshed with the first gear and the second gear respectively, wherein,

[0006] The number of teeth of the first gear is Z1, the number of teeth of the second gear is Z2, the number of teeth of the third gear is Z3, the number of teeth of the fourth gear is Z4, the number of teeth of the fifth gear is Z5, the number of teeth of the driving gear is Z6, the output speed of the motor is n0, the frequency of the axial reciprocating motion of the output shaft per unit time is f, where:

[0007] Z3>Z6, Z1>Z4, Z2>Z5;

[0008]

[0009] 15≤f≤50.

[0010] The present application sets a driving mechanism and a reciprocating motion mechanism, so that when the user uses the food processor to process food, the stirring element can not only realize circumferential rotation, but also realize axial reciprocating motion, thereby greatly increasing the axial cutting space of the stirring knife in the cup body, so that the stirring knife can cut more food, which helps to improve the uniformity and efficiency of cutting, and at the same time can increase the amount of food cut in a single time, meeting the user's usage needs.

[0011] The driving gear is connected to the first gear and the second gear through an intermediate gear transmission. The intermediate gear includes a third gear meshing with the driving gear and a fourth gear and a fifth gear transmission-connected to the third gear. Compared with the existing intermediate gear being set as a single gear, the third gear can be used to reduce speed and increase output torque. At the same time, the fourth gear and the fifth gear are respectively meshed with the first gear and the second gear to achieve output at different speeds, and each gear can adjust its position according to its meshing gear, thereby improving the meshing accuracy between the gears, and avoiding the situation where the axial height of the intermediate gear is too high when the intermediate gear is set as an integral whole, resulting in a large force on the bottom gear after meshing with the driving gear, causing the top gear to swing, thereby resulting in low meshing accuracy of each gear, thereby causing serious wear of each gear. At the same time, when a single gear is severely worn, it can be repaired by replacing a single gear, which helps to reduce maintenance costs and extend service life.

[0012] And by the relationship between each gear ratio and the frequency of the axial reciprocating motion of the output shaft, the effect of floating cutting of food is further improved. At the same time, by limiting the frequency of the axial reciprocating motion of the output shaft per unit time, it is avoided that the axial reciprocating motion frequency of the output shaft is low, resulting in low axial food cutting efficiency and uneven crushing per unit time; at the same time, it is avoided that the axial reciprocating motion frequency of the output shaft is high, resulting in excessive load resistance of the stirring element, causing accelerated aging of the motor and various components.

[0013] In a preferred implementation of a reciprocating food processing machine, the rotation speed of the output shaft n1=n0 / [(Z3 / Z6)·(Z1 / Z4)], wherein n1 satisfies: 2000r / min≤n1≤3000r / min.

[0014] By setting the output shaft speed n1 to satisfy: 2000r / min≤n1≤3000r / min, it is possible to avoid the situation where the slow speed of the output shaft leads to a slow stirring speed of the stirring element, thereby causing slow food processing efficiency of the entire machine; at the same time, it is possible to avoid the situation where the fast rotation of the output shaft leads to excessive load resistance of the stirring element, causing accelerated aging of the motor and various components.

[0015] In a preferred implementation of a reciprocating food processor, the second gear also has an accommodating cavity for the output shaft to pass through, the portion of the output shaft located in the accommodating cavity includes a mating portion, an outer surface of the mating portion is provided with an annular guide rail extending along a circumferential wave and connected end to end, and a ball bearing that cooperates with the annular guide rail is provided on the side wall of the accommodating cavity, and the annular guide rail is distributed in a sinusoidal wave when unfolded.

[0016] By providing an annular guide rail extending along a circumferential waveform and connected end to end on the outer surface of the mating part, and providing a ball matched with the annular guide rail on the side wall of the accommodating cavity, the mating part and the ball are relatively rotated by virtue of the speed difference between the first gear and the second gear, so that the ball can move along the annular guide rail. Since the ball is in a relatively static state with the second gear in the axial direction, when the ball moves along the annular guide rail, the interaction between the ball and the annular guide rail generates an axial component force on the mating part, so that the mating part generates axial reciprocating motion along the trajectory of the annular guide rail, so that the output shaft can reciprocate axially while rotating, so that the stirring blade driven by the output shaft can achieve a wider range of stirring in the axial direction. At the same time, the annular guide rail is distributed in a sinusoidal wave after being unfolded, so that the ball can slide smoothly in the annular guide rail, avoiding the situation where the ball is stuck and the output shaft cannot reciprocate axially, thereby improving the stability of the work.

[0017] In a preferred implementation of a reciprocating food processing machine, an angle A between a line connecting the lowest end and the highest point of the annular guide rail and a horizontal plane satisfies: 30°≤A≤50°.

[0018] By setting the angle A between the line between the lowest end and the highest point of the circular guide rail and the horizontal plane to satisfy: 30°≤A≤50°, it is avoided that the angle A is too small, resulting in a larger diameter of the transmission part when the same floating height needs to be achieved, and the gear will be too large, which will lead to the size of the whole machine being too large and waste of materials causing increased costs; at the same time, it is avoided that the angle A is too large, resulting in the ball rapidly accelerating downward when passing the highest point of the circular guide rail, causing jamming.

[0019] In a preferred implementation of a reciprocating food processor, the fifth gear is provided with a spline extending downward, and the third gear is provided with a spline groove cooperating with the spline transmission.

[0020] By providing the fifth gear with a spline extending downward and the third gear with a spline groove cooperating with the spline transmission, the third gear and the fifth gear can achieve torque transmission between the two through the transmission cooperation between the spline and the spline groove, which helps to improve the stability of the transmission.

[0021] In a preferred implementation of a reciprocating food processor, the fourth gear and the fifth gear are integrally formed; or,

[0022] The fourth gear is connected to the fifth gear through a partition plate.

[0023] By forming the fourth gear and the fifth gear as an integral unit, the step of connecting the two is eliminated, which helps to improve assembly efficiency and at the same time reduces the matching transmission chain between the two, thereby improving the coaxiality of the third gear, the fourth gear and the fifth gear, and effectively improving the transmission stability, thereby further reducing the wear of each gear, and avoiding the situation where the coaxiality of each gear is low and the gear parts swing, causing serious wear and easy jamming of the gears.

[0024] By connecting the fourth gear and the fifth gear through a partition, if the fourth gear or the fifth gear has a large deflection, the partition and the first gear or the second gear can be used to limit the blocking to ensure the stability of the position of the fourth gear and the fifth gear, thereby avoiding a large deflection between the two that causes a reduction in fitting accuracy, and further causing serious wear of each gear.

[0025] In a preferred implementation of a reciprocating food processor, the processing cup includes a cup body and a cup cover covering the cup body, the cup cover is provided with a feeding port and a handle arranged in the middle of the cup cover, the feeding port is offset relative to the handle, and a feeding cover is provided above the feeding port.

[0026] By providing a feeding cover above the feeding port, the user can open the feeding cover and add seasonings such as salt, light soy sauce, pepper, etc. into the cup body through the feeding port during the food processing process, thereby achieving the effect of adding seasonings without stopping the machine. At the same time, it can make the material mixing more evenly and more flavorful, which helps to improve the user experience.

[0027] In a preferred implementation of a reciprocating food processor, a material guide plate inclined downward and inward is provided at the feeding port.

[0028] By providing a downward and inwardly inclined material guide plate at the feeding port, when the user adds materials through the feeding port, the material guide plate can guide the materials into the cup body, making the material feeding more uniform, which can improve the uniformity of adding seasonings to the food, thereby improving the taste of the output food. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 This is a structural schematic diagram of a food processing machine in one embodiment of the utility model;

[0031] Figure 2 A cross-sectional view of a food processor in one embodiment of the utility model;

[0032] Figure 3 This is a schematic diagram of the structure of a driving mechanism and a reciprocating motion mechanism in one embodiment of the utility model;

[0033] Figure 4 It is a cross-sectional view of a driving mechanism and a reciprocating motion mechanism in one embodiment of the utility model;

[0034] Figure 5 This is an exploded view of an intermediate gear in one embodiment of the utility model;

[0035] Figure 6 This is a schematic structural diagram of a transmission part in one embodiment of the utility model;

[0036] Figure 7 It is a structural schematic diagram and a side expansion diagram of a transmission part in one embodiment of the utility model;

[0037] Figure 8 It is a structural schematic diagram and a side expansion diagram of a transmission part in another embodiment of the utility model;

[0038] Fig. 9 It is a structural schematic diagram and a side expansion diagram of a transmission part in another embodiment of the utility model.

[0039] List of parts and reference numerals:

[0040] 1-main machine; 2-processing cup, 21-cup body, 22-cup cover, 221-feeding port, 222-feeding guide plate, 23-feeding cover; 3-stirring member, 31-matching part, 311-annular guide rail; 4-first gear; 5-second gear; 6-intermediate gear, 61-fourth gear, 62-fifth gear, 621-transmission part, 63-third gear, 631-spline groove, 64-partition; 7-driving gear; 8-motor, 81-motor shaft; 9-output shaft; 10-ball. DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.

[0042] It should be noted that many specific details are elaborated in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific implementation methods disclosed below.

[0043] like Figures 1 to 9As shown, the utility model provides a reciprocating food processing machine, comprising a main machine 1, a processing cup 2, a stirring member 3 arranged in the processing cup 2, a driving mechanism arranged in the main machine 1, a reciprocating mechanism connected to the driving mechanism, and an output shaft 9 connected to the stirring member 3, the reciprocating mechanism comprising a first gear 4 and a second gear 5 sleeved on the outer side of the output shaft 9, the first gear 4 drives the output shaft 9 to rotate circumferentially, and the second gear 5 drives the output shaft 9 to reciprocate axially, the driving mechanism comprises a motor 8 and a driving gear 7 arranged at the output end of the motor shaft 81 of the motor 8, the driving gear 7 is connected to the first gear 4 and the second gear 5 through an intermediate gear 6, the intermediate gear 6 comprises a third gear 63 meshed with the driving gear 7, and a fourth gear 61 and a fifth gear 62 connected to the third gear 63, and the fourth gear 61 and the fifth gear 62 are meshed with the first gear 4 and the second gear 5 respectively, wherein,

[0044] The number of teeth of the first gear 4 is Z1, the number of teeth of the second gear 5 is Z2, the number of teeth of the third gear 63 is Z3, the number of teeth of the fourth gear 61 is Z4, the number of teeth of the fifth gear 62 is Z5, the number of teeth of the driving gear 7 is Z6, the output speed of the motor 8 is n0, the frequency of the axial reciprocating motion of the output shaft 9 per unit time is f, wherein: Z3>Z6, Z1>Z4, Z2>Z5; 15≤f≤50.

[0045] Specifically, the overall reduction ratio of the entire reduction gearbox is i=(Z3 / Z6)·(Z1 / Z4);

[0046] The no-load speed of the output shaft, that is, the no-load speed of the output shaft driving the stirring element is

[0047]

[0048] Number of revolutions of the second gear per unit time

[0049] The frequency f of the axial reciprocating motion of the output shaft 9 per unit time is the difference between the values ​​of n1 and n2, and has nothing to do with its unit, that is:

[0050] The present application sets up a driving mechanism and a reciprocating motion mechanism, so that when the user uses the food processor to process food, the stirring element 3 can not only realize circumferential rotation, but also realize axial reciprocating motion, thereby greatly increasing the axial cutting space of the stirring knife in the cup body 21, so that the stirring knife can cut more food, which helps to improve the uniformity and efficiency of cutting, and at the same time can increase the number of food cut in a single time to meet the user's usage needs.

[0051] The driving gear 7 is connected to the first gear 4 and the second gear 5 through the intermediate gear 6. The intermediate gear 6 includes a third gear 63 meshing with the driving gear 7 and a fourth gear 61 and a fifth gear 62 which are connected to the third gear 63. Compared with the existing method of setting the intermediate gear 6 as a single gear, the third gear 63 can be used to reduce the speed and improve the output torque. At the same time, the fourth gear 61 and the fifth gear 62 are respectively meshed with the first gear 4 and the second gear 5 to achieve output at different speeds. In addition, each gear can adjust its position according to its meshed gear, thereby improving the meshing accuracy between the gears. When the intermediate gear 6 is set as an integral unit, the axial height of the intermediate gear 6 is not too high, resulting in a large force on the bottom gear after meshing with the driving gear 7, causing the top gear to deflect, thereby causing the meshing accuracy of each gear to be low, thereby causing serious wear of each gear. At the same time, when a single gear is seriously worn, it can be repaired by replacing a single gear, which helps to reduce the repair cost and extend the service life.

[0052] At the same time, by limiting the frequency of the axial reciprocating motion of the output shaft 9 per unit time, it is possible to avoid the situation where the axial reciprocating motion frequency of the output shaft 9 is low, resulting in low axial food cutting efficiency and uneven crushing per unit time; at the same time, it is possible to avoid the situation where the axial reciprocating motion frequency of the output shaft 9 is high, resulting in excessive load resistance of the stirring element 3, causing accelerated aging of the motor 8 and various components. And by correlating the gear ratios with the axial reciprocating motion frequency of the output shaft 9, the effect of floating food cutting is further improved.

[0053] It should be noted that the frequency f of the axial reciprocating motion of the output shaft 9 per unit time in the present application is specifically, when the stirring member 3 returns to the starting position from the bottom up and then down, it is counted as one time; or when the stirring member 3 returns to the starting position from the top down and then up, it is counted as one time. More preferably, the frequency f of the axial reciprocating motion of the output shaft 9 per unit time satisfies: 20≤f≤40, and preferably, the frequency of the reciprocating motion can be selected as 20, 30 or 40.

[0054] As a preferred embodiment of the present application, the rotation speed of the output shaft 9 is n1=n0 / [(Z3 / Z6)·(Z1 / Z4)], wherein n1 satisfies: 2000r / min≤n1≤3000r / min, preferably, n0=10000r / min-18000r / min, more preferably, n0=12000r / min or 15000r / min.

[0055] By setting the rotation speed n1 of the output shaft 9 to satisfy: 2000r / min≤n1≤3000r / min, it is avoided that the slow rotation speed of the output shaft 9 leads to a slow stirring speed of the stirring element 3, thereby causing a slow food processing efficiency of the whole machine; at the same time, it is avoided that the fast rotation of the output shaft 9 leads to excessive load resistance of the stirring element 3, which causes accelerated aging of the motor 8 and various components.

[0056] As a preferred embodiment of the present application, Figure 4 , Figure 6 As shown, the second gear 5 also has an accommodating cavity for the output shaft 9 to pass through, and the part of the output shaft 9 located in the accommodating cavity includes a matching portion 31, and an annular guide rail 311 extending along a circumferential wave and connected end to end is provided on the outer surface of the matching portion 31, and a ball 10 that cooperates with the annular guide rail 311 is provided on the side wall of the accommodating cavity, and the annular guide rail 311 is distributed in a sinusoidal wave after being unfolded.

[0057] By providing an annular guide rail 311 extending along a circumferential waveform and connected end to end on the outer surface of the mating portion 31, and providing a ball 10 mating with the annular guide rail 311 on the side wall of the accommodating cavity, the first gear 4 and the second gear 5 have a speed difference, so that the mating portion 31 and the ball 10 can produce relative rotation, and then the ball 10 can move along the annular guide rail 311. Since the ball 10 is in a relatively static state with the second gear 5 in the axial direction, when the ball 10 moves along the annular guide rail 311, an axial component force is generated on the mating portion 31 under the interaction between the ball 10 and the annular guide rail 311, and then the mating portion 31 produces axial reciprocating motion along the trajectory of the annular guide rail 311, so that the output shaft 9 can reciprocate axially while rotating, so that the stirring blade driven by the output shaft 9 can achieve a wider range of stirring in the axial direction. At the same time, the annular guide rail 311 is distributed in a sinusoidal wave after being unfolded, so that the ball 10 can slide smoothly in the annular guide rail 311, avoiding the situation where the ball 10 is stuck and the output shaft 9 cannot axially reciprocate, thereby improving the working stability.

[0058] It should be noted that the present application does not specifically limit the matching portion. As a preferred embodiment of the present application, as shown in the figure, the output shaft includes a shaft body and a sleeve sleeved on the outside of the shaft body, and the matching portion includes a sleeve. It should be further noted that the present application does not specifically limit the relative relationship between the output shaft 1 and the sleeve, which can be any one of the following embodiments:

[0059] Embodiment 1: In this embodiment, the shaft sleeve and the shaft body are integrally formed.

[0060] By forming the shaft sleeve and the output shaft 9 as one piece, on the one hand, the step of transmitting the shaft sleeve to the output shaft 9 is eliminated, thereby reducing the kinetic energy loss between the shaft sleeve and the output shaft 9 and improving the transmission efficiency. At the same time, the friction noise between the shaft sleeve and the output shaft 9 can also be reduced, thereby improving the working stability. On the other hand, the step of transmitting and connecting the shaft sleeve to the output shaft 9 is eliminated, which helps to improve the assembly efficiency and shorten the assembly time.

[0061] Example 2: Figure 4 As shown, in this embodiment, a rotation-stopping structure is provided between the shaft body and the shaft sleeve so that the shaft body can drive the shaft sleeve to rotate.

[0062] By providing a stop structure between the shaft body and the sleeve, the shaft body can drive the sleeve to rotate, so that while the shaft body is driven to rotate by the first gear, the shaft body can also drive the sleeve to rotate through the stop structure, thereby realizing transmission, avoiding the situation where the sleeve cannot rotate due to relative sliding between the shaft body and the sleeve. At the same time, if the output shaft 9 or the sleeve is severely worn, it can be replaced and repaired by replacing the output shaft 9 or the sleeve alone, avoiding the situation where the sleeve and the output shaft 9 are replaced together, reducing the maintenance cost. At the same time, when replacing the output shaft 9 or the sleeve, the two can be disassembled separately, which is convenient for disassembly and helps to improve the disassembly efficiency.

[0063] It should be noted that the present application does not specifically limit the extension track of the annular guide rail 311. As a preferred embodiment of the present application, Figure 6 As shown, the angle A between the line between the lowest end and the highest point of the annular guide rail 311 and the horizontal plane satisfies: 30°≤A≤50°.

[0064] By setting the angle A between the line between the lowest end and the highest point of the annular guide rail 311 and the horizontal plane to satisfy: 30°≤A≤50°, it is avoided that the angle A is too small, resulting in a larger diameter of the transmission part 621 when the same floating height needs to be achieved, which will be reflected in the gear being too large, and then the size of the whole machine is too large and the material is wasted, resulting in increased costs; at the same time, it is avoided that the angle A is too large, resulting in the ball 10 accelerating downward sharply when passing the highest point of the annular guide rail 311, causing the ball 10 to get stuck.

[0065] It should be noted that the present application does not specifically limit the structure of the annular guide rail 311, which may be any one of the following embodiments:

[0066] Example 1: Figure 7 As shown, in this embodiment, the annular guide rail 311 is formed by two half-sine waves connected end to end.

[0067] Example 2: Figure 8As shown, in this embodiment, the annular guide rail 311 is formed by two full sine waves connected end to end.

[0068] Example 3: Fig. 9 As shown, in this embodiment, the annular guide rail 311 is formed by two intersecting sine waves.

[0069] It should be noted that the present application does not specifically limit the relative relationship between the fourth gear 61 and the fifth gear 62, which can be any one of the following embodiments:

[0070] Example 1: Figure 5 As shown, as a preferred embodiment of the present application, the fourth gear 61 and the fifth gear 62 are integrally formed.

[0071] By configuring the fourth gear 61 and the fifth gear 62 to be integrally formed, the step of connecting the two is eliminated, which helps to improve assembly efficiency and at the same time reduces the matching transmission chain between the two, thereby improving the coaxiality of the third gear 63, the fourth gear 61 and the fifth gear 62, and effectively improving the transmission stability, thereby further reducing the wear of each gear, and avoiding the situation where the coaxiality of each gear is low and the gear parts swing, causing serious wear and easy jamming of the gears.

[0072] Embodiment 2: In this embodiment, the third gear 63, the fourth gear 61 and the fifth gear 62 are coaxially arranged, and the third gear 63, the fourth gear 61 and the fifth gear 62 are coupled through a transmission shaft.

[0073] Embodiment 3: In this embodiment, the third gear 63, the fourth gear 61 and the fifth gear 62 are all formed separately.

[0074] As a preferred implementation under this embodiment, Figure 5 As shown, the fifth gear 62 is provided with a spline 621 extending downward, and the third gear 63 is provided with a spline 621 groove 631 which is transmission-matched with the spline 621 .

[0075] By providing the fifth gear 62 with a spline 621 extending downward and the third gear 63 with a spline 621 groove 631 that cooperates with the spline 621, the third gear 63 and the fifth gear 62 can achieve torque transmission between the spline 621 and the spline 621 groove 631, which helps to improve the stability of the transmission.

[0076] As a preferred implementation under this embodiment, Figure 5 As shown, the fourth gear 61 is connected to the fifth gear 62 via a partition plate 64 .

[0077] By connecting the fourth gear 61 and the fifth gear 62 through the partition 64, if the fourth gear 61 or the fifth gear 62 has a large deflection, the partition 64 and the first gear 4 or the second gear 5 can be used to limit the position of the fourth gear 61 and the fifth gear 62 to ensure the stability of the position, thereby avoiding a large deflection between the two that causes a reduction in fitting accuracy, and further causing serious wear of each gear.

[0078] As a preferred embodiment of the present application, Figure 2 As shown, the processing cup 2 includes a cup body 21 and a cup cover 22 covering the cup body 21 . The cup cover 22 is provided with a feeding port 221 and a handle provided in the middle of the cup cover 22 . The feeding port 221 is offset relative to the handle, and a feeding cover 23 is provided above the feeding port 221 .

[0079] By providing a feeding cover 23 above the feeding port 221, the user can open the feeding cover 23 and add seasonings such as salt, light soy sauce, pepper, etc. into the cup body 21 through the feeding port 221 during the food processing process, thereby achieving the effect of adding ingredients without stopping the machine. At the same time, the ingredients can be mixed more evenly and more flavorful, which helps to improve the user experience.

[0080] Furthermore, if Figure 2 As shown, a material guide plate 222 inclined downward and inward is provided at the feeding port 221 .

[0081] By providing a downwardly and inwardly inclined material guide plate 222 at the feeding port 221, when the user adds materials through the feeding port 221, the material guide plate 222 can guide the materials into the cup body 21, so that the material is fed more evenly, which can improve the uniformity of adding seasonings to the food, thereby improving the taste of the produced food.

[0082] The technical solution protected by the present utility model is not limited to the above-mentioned embodiments. It should be pointed out that the combination of the technical solution of any embodiment with the technical solution of one or more other embodiments is within the protection scope of the present utility model. Although the present utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to it based on the present utility model. Therefore, these modifications or improvements made without departing from the spirit of the present utility model are within the scope of protection claimed by the present utility model.

Claims

1. A reciprocating food processing machine, comprising a main machine, a processing cup, a stirring element arranged in the processing cup, a driving mechanism arranged in the main machine, a reciprocating mechanism drivingly connected to the driving mechanism, and an output shaft drivingly connected to the stirring element, characterized in that: The reciprocating mechanism includes a first gear and a second gear sleeved on the outside of the output shaft, the first gear drives the output shaft to rotate circumferentially, and the second gear drives the output shaft to reciprocate axially, the driving mechanism includes a motor and a driving gear arranged at the output end of the motor shaft of the motor, the driving gear is connected to the first gear and the second gear through an intermediate gear, the intermediate gear includes a third gear meshed with the driving gear and a fourth gear and a fifth gear connected to the third gear, and the fourth gear and the fifth gear are meshed with the first gear and the second gear respectively, wherein, The number of teeth of the first gear is Z1, the number of teeth of the second gear is Z2, the number of teeth of the third gear is Z3, the number of teeth of the fourth gear is Z4, the number of teeth of the fifth gear is Z5, the number of teeth of the driving gear is Z6, the output speed of the motor is n0, the frequency of the axial reciprocating motion of the output shaft per unit time is f, wherein: Z3>Z6, Z1>Z4, Z2>Z5; 15≤f≤50。 2. A reciprocating food processor according to claim 1, characterized in that: The rotation speed of the output shaft is n1=n0 / [(Z3 / Z6)·(Z1 / Z4)], wherein n1 satisfies: 2000r / min≤n1≤3000r / min.

3. A reciprocating food processor according to claim 1, characterized in that: The second gear also has an accommodating cavity for the output shaft to pass through, and the part of the output shaft located in the accommodating cavity includes a matching portion, and an annular guide rail extending along a circumferential wave and connected end to end is provided on the outer surface of the matching portion, and a ball that cooperates with the annular guide rail is provided on the side wall of the accommodating cavity, and the annular guide rail is distributed in a sinusoidal wave after being unfolded.

4. A reciprocating food processor according to claim 3, characterized in that: The angle A between the line connecting the lowest end and the highest point of the annular guide rail and the horizontal plane satisfies: 30°≤A≤50°; or, The output shaft comprises a shaft body and a shaft sleeve sleeved on the outer side of the shaft body, and the matching portion comprises the shaft sleeve.

5. A reciprocating food processor according to claim 1, characterized in that: The fifth gear is detachably connected to the third gear, and the driving gear drives the fourth gear and the fifth gear to rotate through the third gear.

6. A reciprocating food processor according to claim 5, characterized in that: The fifth gear is provided with a spline extending downward, and the third gear is provided with a spline groove matched with the spline transmission.

7. A reciprocating food processor according to claim 5, characterized in that: The fourth gear and the fifth gear are integrally formed; or, The fourth gear is connected to the fifth gear through a partition plate.

8. A reciprocating food processor according to claim 1, characterized in that: The third gear, the fourth gear and the fifth gear are coaxially arranged, and the third gear, the fourth gear and the fifth gear are matched through a transmission shaft.

9. A reciprocating food processor according to claim 1, characterized in that: The processing cup includes a cup body and a cup cover covering the cup body, the cup cover is provided with a feeding port and a handle arranged in the middle of the cup cover, the feeding port is offset relative to the handle, and a feeding cover is provided above the feeding port.

10. A reciprocating food processor according to claim 9, characterized in that: The feeding port is provided with a material guide plate which is inclined downward and inward.

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