CN218165014U - Stirring subassembly and cooking machine - Google Patents

Abstract

The application discloses stirring subassembly and cooking machine. The stirring assembly comprises a main knife assembly and an auxiliary knife assembly. The main cutter assembly comprises a cutter shaft and a main cutter assembled on the cutter shaft. The auxiliary cutter assembly comprises an installation part and an auxiliary cutter connected with the installation part, and the installation part is connected with the cutter shaft through a reciprocating mechanism; in the intermittent rotation process of the cutter shaft, the cutter shaft drives the auxiliary cutter assembly to rotate intermittently around the rotation center line of the cutter shaft, and the auxiliary cutter assembly reciprocates up and down along the cutter shaft under the action of the reciprocating mechanism. According to the arrangement, the main knife cuts the food materials in the rotating process of the knife shaft, the auxiliary knife reciprocates up and down to cut the food materials with different heights, and finally the main knife and the auxiliary knife are matched to ensure that the food materials are cut uniformly.

Description

Stirring subassembly and cooking machine

Technical Field

The application relates to small household appliance technical field, especially relates to stirring subassembly and cooking machine.

Background

Food processor, for example meat grinder, including eating the material container, covering in the container lid of eating the material container, be located the stirring subassembly of eating the material container and arrange in the host computer of container lid. Based on above-mentioned structure, the cooking machine can be smashed the edible material, for example, eat under the condition of material for meat, host computer drive main knife tackle spare is in eating material container internal rotation, stirs into the meat filling with meat, certainly, eats the material also can be vegetables, stirs into vegetables grain or vegetable mud with vegetables.

The food material of the food processor is uneven in thickness in the using process.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a stirring subassembly and cooking machine. The stirring assembly can enable the food material to be more uniform in thickness.

The present application provides a stirring assembly. The stirring assembly comprises a main knife assembly and an auxiliary knife assembly. The main cutter assembly comprises a cutter shaft and a main cutter assembled on the cutter shaft. The attached knife assembly comprises an installation part and an attached knife connected with the installation part. The mounting part is connected with the cutter shaft through a reciprocating mechanism; in the intermittent rotation process of the cutter shaft, the cutter shaft drives the auxiliary cutter assembly to rotate intermittently around the rotation central line of the cutter shaft, and the auxiliary cutter assembly reciprocates up and down along the cutter shaft under the action of the reciprocating mechanism. According to the above arrangement, the main knife cuts up food materials in the rotating process of the knife shaft, the upper and lower reciprocating motion of the knife is attached to cut up food materials with different heights, finally, the main knife and the attached knife are matched to enable the food materials to be cut up more uniformly, moreover, the intermittent rotation of the knife shaft drives the intermittent rotation mode of the attached knife assembly, compared with the mode that the motor enables the knife shaft to rotate positively and reversely to achieve reciprocating motion, the requirement on the motor is low, and the cost reduction is facilitated.

In some embodiments, the reciprocating mechanism includes a spiral groove and a protrusion, the arbor is provided with one of the spiral groove and the protrusion, and the mounting portion is provided with the other of the spiral groove and the protrusion. The spiral groove extends upwards along the rotation center line of the cutter shaft in a spiral mode, and the bulge is matched with the spiral groove to achieve the reciprocating motion. As the spiral groove and the bulge are matched to realize the up-and-down reciprocating motion of the attached knife assembly, the food material is cut up more uniformly. And structurally, corresponding setting on arbor and installation department helicla flute and arch, the structure of helicla flute and bellied structure all make the simple structure who attaches knife tackle spare comparatively simply, moreover, utilize arbor self to set up one of helicla flute and arch and utilize the installation department to set up another person in helicla flute and the arch, the length of the increase arbor that can not be too much (the length of increase is mostly the stroke along the rotation center line of arbor that attaches knife tackle spare), and then, main knife tackle spare with attach the knife tackle spare and be difficult to lead to the cooking machine to rock in the rotation process.

In some embodiments, the protrusion is spirally raised along a rotation centerline of the arbor. As set up above, protruding with the heliciform all is the heliciform arbor intermittent rotation in-process, the lateral wall and the heliciform protruding cooperation of heliciform are more convenient for attach the up-and-down reciprocating motion of sword subassembly.

In some embodiments, in a case where both the spiral groove and the protrusion spirally ascend, a spiral direction of each of the spiral groove and the protrusion is opposite to a rotation direction of the arbor. As the spiral direction of the spiral groove is opposite to the rotating direction of the cutter shaft, the auxiliary cutter assembly moves to the highest position under the driving of the cutter shaft and falls to the lowest position by gravity, the requirement on the weight of the auxiliary cutter assembly is lower, the reciprocating motion is easier to realize, and the stroke of the up-and-down motion along the rotating direction of the cutter shaft is longer.

In some embodiments, a stop is provided on the arbor. And under the condition that the attached knife assembly moves to the highest position, the blocking part is abutted against the mounting part. According to the arrangement, the blocking part is abutted to the mounting part, so that the auxiliary cutter assembly can be prevented from continuously moving upwards, and the auxiliary cutter assembly is prevented from falling off from the main cutter assembly. When the stirring assembly is applied to a food processor with a container cover, the blocking part limits the attached knife assembly to be at the highest position, so that the abrasion of the attached knife assembly and the container cover due to friction can be avoided, and the attached knife assembly is prevented from being separated from the knife shaft when moving upwards, thereby avoiding potential safety hazards.

In some embodiments, the helical flutes are provided on the arbor, and the blocking portions are provided on top of the helical flutes, each helical flute comprising a first helical wall and a second helical wall provided with the blocking portion. The blocking part and the first spiral wall are separated to form a communication groove, and the communication groove is communicated with the spiral groove and the outer part of the cutter shaft. According to the arrangement, the protrusion only needs to enter the spiral groove from the communicating groove so as to assemble the auxiliary cutter assembly and the cutter shaft, the auxiliary cutter assembly and the cutter shaft are convenient to assemble, and the auxiliary cutter assembly and the main cutter assembly can be detachably assembled through the communicating groove, so that a small amount of food materials can be processed only by using the main cutter assembly; for more food materials, the main cutter assembly and the auxiliary cutter assembly can be used for processing the food materials together, so that different amounts of food materials can be processed by the stirring assembly, and different requirements are met.

In some embodiments, the helical groove has at least two; under the condition that the spiral grooves are arranged on the cutter shaft, all the spiral grooves are uniformly arranged on the side surface of the cutter shaft at intervals; the helicla flute set up in under the condition of installation department, the installation department include with the arbor that the arbor wore to establish holds the chamber, all the even spaced setting of helicla flute in the arbor holds the inside wall in chamber. As the spiral grooves are uniformly arranged on the side surface of the cutter shaft or the side surface of the cutter shaft accommodating cavity at intervals and are at least two, the auxiliary cutter assembly is more stable and smooth in the up-and-down reciprocating motion process.

In some embodiments, the helical angle of the helical groove is θ, and 30 degrees θ 80 degrees. As the spiral angle theta is 30-80 degrees, the vertical reciprocating motion speed of the attached knife assembly is not too high, the operation is stable and smooth, and the contact probability with food materials can be increased because the speed is not too high, so that the food materials can be better chopped in the vertical reciprocating motion process.

In some embodiments, the helical groove has a height h along the rotational centerline of 15mm ≦ h ≦ 150mm. As set forth above, the height h is more than or equal to 15mm and less than or equal to 150mm, for example, in the case that the height theta is more than or equal to 30 degrees and less than or equal to 80 degrees, the vertical reciprocating motion of the attached knife assembly can be further more stable and smooth, and the ascending and descending speeds are not too fast to cut the food materials better. Moreover, can also restrict through above-mentioned h attach the stroke of knife tackle spare along the rotation axis of arbor, and then, main knife tackle spare with attach the knife tackle spare and rotate the in-process and be difficult to lead to the cooking machine to rock.

In some embodiments, the cutter shaft comprises a mating section and a sleeve section located below the mating section, and the mating section is provided with the spiral groove or the protrusion. The installation department for with sleeve section cover is established and clearance fit's sleeve. During movement of the attached knife assembly to the uppermost position, the top of the sleeve segment is located within the sleeve. As the sleeve section is in clearance fit with the mounting part, and the bottom of the spiral groove is still positioned in the sleeve under the condition of the highest position, the food material is not easy to enter the spiral groove, and the attached knife assembly is prevented from being clamped by the food material entering the spiral groove and not reciprocating up and down.

In some embodiments, the arbor is provided with a mounting step. The mounting step includes a guide surface inclined toward the rotation center line. The bottom of installation department is including holding the chamber, it includes the fitting surface to hold the chamber. Under the condition that the attached knife assembly is located at the lowest position, the mounting step is located in the containing cavity, the matching surface is attached to the guide surface, and the rotating center line of the knife shaft is overlapped with the rotating center line of the mounting portion. As described above, when the auxiliary cutter unit is positioned at the lowest position, since the mounting step is inclined toward the rotation center line, the rotation center line of the mounting portion is more easily overlapped with the rotation center line of the cutter shaft, and the concentricity between the auxiliary cutter unit and the cutter shaft is improved.

In some embodiments, the guide surface and the mating surface are both surfaces of revolution, the surfaces of revolution being formed by rotation of a line at an acute angle to the center line of revolution about the center line of revolution. As set forth above, the guiding surface and the matching surface are rotating curved surfaces, which is more convenient for improving the concentricity between the attached cutter assembly and the cutter shaft, and the rotating curved surfaces are also easier to manufacture.

In some embodiments, the arbor comprises an engagement portion and a mating section provided with the helical groove; the engaging portion is provided on an end surface of the fitting section. The helical groove extends to the end face. The installation part is provided with an abutting part extending along the rotation center line of the cutter shaft. In addition, the spiral groove extends to the end face, so that the auxiliary cutter assembly and the main cutter assembly can be detachably assembled, and therefore, for a small amount of food materials, only the main cutter assembly can be used for processing; to more edible material, can use main cutter unit spare and attach the common processing of cutter unit spare, consequently the stirring subassembly can process the edible material of different volume, satisfies different demands.

In another aspect, an embodiment of the present application discloses a food processor. The food processor comprises any one of the stirring assembly, a food material container, a container cover covering the food material container and a host, wherein the stirring assembly is positioned in the food material container; the main machine comprises a series motor, and the series motor drives the cutter shaft to rotate. The knife is spaced from the container cover when the knife assembly is at the uppermost position. As set up above, the cooking machine has at least the beneficial effect that the stirring subassembly brought, no longer redundantly. In addition, the existence of the interval can avoid the abrasion of the attached knife and the container cover caused by mutual friction, and the service life of the stirring assembly and/or the container cover is prolonged. Finally, through arbor intermittent type rotatory with the combination of series excited machine can reduce the cost of cooking machine.

On the other hand, the embodiment of this application still discloses a cooking machine, cooking machine does not set up the blocking part, and through last clutch with the support of installation department will attach the knife tackle spare restriction at the highest position, more specifically, cooking machine include any one of the aforesaid stirring subassembly, eat material container, lid in eat material container's container lid and host computer, wherein, the arbor includes meshing portion and is provided with the cooperation section of helicla flute. The engaging portion is provided on an end surface of the fitting section. The helical groove extends to the end face. The stirring assembly is located in the food material container, and the host drives the stirring assembly to rotate. The host computer includes series excited machine and the last clutch of being connected with series excited machine. The series motor is connected with the cutter shaft through the upper clutch so as to drive the stirring assembly to rotate. One of the upper clutch and the mounting portion is provided with an abutting portion. The other of the upper clutch and the mounting portion abuts against the abutting portion with the attached knife assembly moved to the uppermost position, with a space between the attached knife and the container cover. According to the arrangement, the spiral groove is extended to the end face, the spiral groove is convenient to process, the upper clutch abuts against the abutting portion to enable the auxiliary cutter and the container cover to have a gap, abrasion of the auxiliary cutter and the container cover due to friction is avoided, and the service life of the auxiliary cutter assembly is prolonged. In addition, the purpose can be achieved only by providing the mounting portion with an abutting portion, and friction between the attached knife and the container cover is avoided with a simple structure. Finally, through arbor intermittent type rotatory with the combination of series excited machine can reduce the cost of cooking machine.

Drawings

Fig. 1 is an exploded view of a food processor;

FIG. 2 is an exploded view of a first blending assembly shown according to an embodiment of the present application;

FIG. 3 is a schematic view of the main blade assembly of the blending assembly shown in FIG. 2;

FIG. 4 is a perspective view of the first stirring assembly shown in FIG. 2, illustrating the attached knife assembly in a lowermost position;

FIG. 5 is an enlarged view of portion A of FIG. 4;

FIG. 6 is a schematic view of the attached knife assembly of FIG. 2 between a lowermost position and an uppermost position;

FIG. 7 is a perspective view of the first type of blending assembly shown in FIG. 2, illustrating the attachment knife assembly in an uppermost position;

fig. 8 is an enlarged view of portion B of fig. 7;

FIG. 9 is an exploded view of a second blending assembly shown according to an embodiment of the present application;

FIG. 10 is a schematic view of the main knife assembly of the blending assembly shown in FIG. 9;

FIG. 11 is a perspective view of the second blending assembly of FIG. 9, illustrating the additional blade assembly in a lowermost position;

fig. 12 is an enlarged view of portion C of fig. 11;

FIG. 13 is a perspective view of the second type of blending assembly shown, illustrating the attachment knife assembly in the uppermost position;

fig. 14 is an enlarged view of portion D of fig. 13;

FIG. 15 is a schematic view of a third stirring assembly shown according to an embodiment of the present application;

FIG. 16 is a schematic view of the main blade assembly of FIG. 15;

fig. 17 is a cross-sectional view of the food processor according to the embodiment of the present application;

fig. 18 is an enlarged view of portion E of fig. 17;

fig. 19 is a schematic view showing that the upper clutch of the food processor adopting the third stirring assembly abuts against the mounting part of the auxiliary knife assembly.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus consistent with certain aspects of the present application, as detailed in the appended claims.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. "plurality" or "a number" means two or more. Unless otherwise indicated, "front," "back," "lower," and/or "upper," and the like are for convenience of description, and are not limited to one position or one spatial orientation. The word "comprising" or "comprises", and the like, means that the element or item listed as preceding "comprising" or "includes" covers the element or item listed as following "comprising" or "includes" and its equivalents, and does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

The food processor shown in fig. 1 includes a stirring assembly 10, a food container 20, a container cover 30 covering the food container 20, and a main body 40. The main body 40 drives the stirring assembly 10 to rotate in the food container 20, thereby chopping the food. However, the above-mentioned food processor has a problem that the food material is not uniformly chopped. In order to solve the problem of uneven crushing of food materials by the food processor or the food processors of the same type, the inventor of the present application has analyzed the structure of the food processor shown in fig. 1, and found that the stirring assembly 10 includes a knife shaft 11 and blades distributed around the circumference of the knife shaft 11. The blades are fixed on the cutter shaft 11, and the distance between each blade 101 and the bowl bottom in the vertical direction is equal by taking the bowl bottom of the food container 20 as a reference, so that only food materials with the same height as the blades 101 can be chopped, and food materials with other heights move under the stirring action of the stirring assembly, and the chopped food materials of the food processor are uneven in thickness. After discovering this reason, the inventor of this application thinks about dismantling the stirring subassembly for main knife tackle spare and attach the knife tackle spare, main knife tackle spare with attach the knife tackle spare homoenergetic intermittent type and rotate, but, attach the knife tackle spare and can also up-and-down reciprocating motion, up-and-down reciprocating motion can cut up the edible material of co-altitude not to, main knife tackle spare and attach the cooperation of knife tackle spare and make the edible material thickness that the cooking machine minced. The structure of the stirring assembly 10 is described below with reference to the accompanying drawings.

Referring to fig. 2, 4, 6 and 7, the first stirring assembly 10 includes a main blade assembly 1 and an auxiliary blade assembly 2. The main blade assembly 1 includes a blade shaft 11, a main blade 12, and an engagement portion 13 engageable with the main machine 40. The main blade 12 is used for beating food materials, for example, meat into meat paste, vegetables, etc. into vegetable particles or vegetable puree. The attached blade assembly 2 includes a mounting portion 21 and an attached blade 22. The attached knives 22 are also used for chopping food material.

In various embodiments of the present application, the stirring unit 10 including the auxiliary blade unit 2 and the main blade unit 1 is different from a general stirring unit in that: the mounting part 21 and the cutter shaft 11 are connected through a reciprocating mechanism. In the embodiment shown in fig. 2, 3, 4, 6 and 7, the reciprocating mechanism includes a spiral groove 111 provided in the arbor 11 and a protrusion 211 provided in the mounting portion 21. Both the spiral groove 111 and the protrusion 211 spirally rise around the rotation center line. In the process of the intermittent rotation of the cutter shaft 11, the cutter shaft 11 drives the auxiliary knife assembly 2 to rotate around the rotation center line, and the auxiliary knife assembly 2 reciprocates up and down along the cutter shaft 11 under the action of the reciprocating mechanism. In the embodiment of the present application, the entire attached blade assembly 2 reciprocates up and down. The process of this reciprocation is described below in conjunction with fig. 4, 5, 6, 7 and 8 as follows:

referring to fig. 4 and 5, the auxiliary knife assembly 2 is located at the lowest position when the arbor 11 is stationary. The lowest position corresponds to the bottom of the spiral groove 111, and fig. 5 illustrates a state where the spiral groove 111 and the protrusion 211 are in contact.

Referring to fig. 4 and 6, since the spiral groove 111 and the protrusion 211 are spirally raised around the rotation center line and the respective spiral directions are opposite to the spiral direction of the arbor 11, in the case that the arbor 11 rotates clockwise (as shown by R in fig. 4), the attached knife assembly 2 will move upward along the rotation center line of the arbor 11 in the direction shown by the arrow A1 in fig. 4 by the cooperation of the spiral groove 111 and the protrusion 211. Fig. 6 illustrates a state of the attached blade assembly 2 during the ascent.

Referring to fig. 7 and 8 and comparing it with fig. 4 and 6, as the arbor shaft 11 continues to rotate, the attached knife assembly 2 reaches the uppermost position. The highest position corresponds to the top of the helical groove 111, and may also be the top of the helical groove 111. Fig. 8 illustrates a state in which the spiral groove 111 is engaged with the protrusion 211 when the attached blade assembly 2 is located at the uppermost position. Subsequently, the cutter shaft 11 is changed from the rotating state to the stationary state (since the cutter shaft 11 rotates intermittently, such a standstill is understood as a pause from the entire rotating process), and the additional blade assembly 2 will descend from the highest position (the top of the spiral groove 111) to the lowest position (back to the bottom of the spiral groove 111) in the direction indicated by the arrow A2 in fig. 7 due to the gravity and by the engagement of the spiral groove 111 and the protrusion 211. When the cutter shaft 11 is rotated again, the additional blade unit 2 is raised again to the highest position, and when it is stopped (suspended) again, the additional blade unit 2 is lowered again to the lowest position. In short, when the cutter shaft 11 is intermittently rotated (also referred to as a jog mode in the art) by repeating this operation, the auxiliary blade unit 2 is intermittently rotated and reciprocates up and down along the rotation center line. The auxiliary knife 22 of the auxiliary knife assembly 2 can cut food materials with different heights in the process of reciprocating up and down.

Referring to fig. 9 to 13, fig. 9 to 13 illustrate a second stirring assembly 10. As can be seen from comparing fig. 9 and 10 with fig. 2 and 2, the most important difference between the stirring assembly 10 and the first stirring assembly 10 is that: the spiral direction of each of the spiral groove 111 and the protrusion 211 is the same as the rotation direction of the arbor 11 (as can be seen by comparing fig. 11 with fig. 9 and 10), and therefore, only the process of reciprocating the auxiliary knife assembly 2 up and down along the rotation center line will be described below.

Referring to fig. 11 and 12, since the spiral direction of each of the spiral groove 111 and the protrusion 211 is the same as the rotation direction of the arbor 11, the auxiliary knife assembly 2 is located at the lowest position when the arbor 11 rotates. Fig. 12 illustrates a positional relationship between the spiral groove 111 and the protrusion 211 in this case.

Referring to fig. 13 and 14 and comparing it with fig. 11 and 12, in the case where the arbor 11 is changed from the rotation state to the rest state (such rest is understood as pause from the entire process of the arbor), the attached knife assembly 2 moves upward in the direction indicated by the arrow A1 in fig. 11 due to inertia by the engagement of the spiral groove 111 and the protrusion 211 until it moves to the uppermost position as shown in fig. 13, and fig. 14 illustrates the positional relationship between the spiral groove 111 and the protrusion 211 in the case where the attached knife assembly 2 is located at the uppermost position. When the knife shaft 11 is rotated again, the knife attaching assembly 2 is lowered in the direction indicated by the arrow A2 in fig. 13 by the engagement of the spiral groove 111 and the protrusion 211. In the case where the arbor 11 is stopped (halted) again, the attached blade assembly 2 rises up to the highest position again along the rotation centerline (indicated by an arrow A1) of the arbor 11 due to inertia. Repeating the above steps to realize that the attached cutter component 2 reciprocates up and down along the rotating central line of the cutter shaft in the intermittent rotating process of the cutter shaft 11. The attached knife assembly 2 cuts food materials with different heights in the process of reciprocating up and down.

Referring to fig. 15 and 16 in conjunction with fig. 2 and 2, fig. 15 and 16 disclose a third stirring assembly. The operation of the stirring assembly 10 is the same as that of the first stirring assembly 10, and the operation thereof will not be described again. The third stirring assembly 10 is different from the first stirring assembly 10 in that the blocking portion 114 is not provided on the spiral groove 111. As described in detail below in connection with fig. 19.

Although the three embodiments of the reciprocating mechanism having the spiral groove 111 and the protrusion 211 are described above, it can be understood by the skilled person from the working process and principle that the reciprocating mechanism can perform the motions including the intermittent rotation motion and the up and down reciprocating motion, and the mechanisms capable of performing the two motions can be applied to the present application, and therefore, the reciprocating mechanism is not limited to the spiral groove 111 and the protrusion 211 described above. The protrusion 211 is not limited to a spiral shape as shown in the figure due to the function of the reciprocating mechanism, for example, the protrusion 211 is spherical as long as it can cooperate with the spiral groove 111 to realize the reciprocating motion. The protrusion 211 is formed in a spiral shape, that is, the protrusion 211 is spirally raised along the rotation center line of the cutter shaft 11. As set forth above, the protrusion 211 and the spiral groove 111 are both spiral, and during the intermittent rotation of the cutter shaft 11, the side wall of the spiral groove 111 and the spiral protrusion 211 are matched to facilitate the vertical reciprocating motion of the cutter-attached component.

In summary, the reciprocating mechanism is used for realizing that the main knife 12 and the auxiliary knife 22 can both shred food materials in the rotating process in the intermittent rotating process of the knife shaft 11, the auxiliary knife 22 of the auxiliary knife assembly 2 can also reciprocate up and down, and shred food materials with different heights in the reciprocating process up and down, and finally, the main knife and the auxiliary knife are matched to enable the food materials to shred more uniformly.

Referring to fig. 2 and 3, fig. 9 and 10, and fig. 15 and 16, in the three stirring assemblies 10, the reciprocating mechanism includes a spiral groove 111 and a protrusion 211. The cutter shaft 11 is provided with the spiral groove 111, and the mounting portion 21 is provided with a protrusion 211. However, the positions of the protrusion 211 and the spiral groove 111 may be reversed, that is, the mounting portion 21 is provided with the spiral groove 111 and the arbor 11 is provided with the protrusion. The spiral groove 111 and the protrusion 211 are spirally raised around the rotation center line. According to the description of the foregoing working process, the protrusion 211 and the spiral groove 111 cooperate to achieve the reciprocating motion. As the arrangement is adopted, the food material can be cut more uniformly due to the matching of the spiral groove 111 and the protrusion 211. In structure, the spiral groove 111 and the protrusion 211 are correspondingly arranged on the knife shaft 11 and the mounting part 21, and the structure of the spiral groove 111 and the structure of the protrusion 211 are both simple, so that the structure of the auxiliary knife assembly 2 is simple. Furthermore, utilize arbor 11 self to set up one of helicla flute 111 and arch 211 and utilize installation department 21 to set up another one in helicla flute 111 and the arch 211, the length of the not too much increase arbor (the length of increase is mostly attaching the axial of the edge arbor of knife tackle (that is the rotary central line) the stroke), and then, avoid main knife tackle spare with attach the knife tackle rotation in-process cooking machine and rock. For example, for a conventional four-bladed knife, the four-bladed knife includes four blades distributed along the circumferential direction of the knife shaft, the four blades are also distributed up and down along the axial direction of the knife shaft (i.e. the rotation center line), and the blades are sequentially divided into first to fourth blades by taking the axial direction of the knife shaft (i.e. the rotation center line) as a reference.

With reference to fig. 2 and 3, fig. 9 and 10, and fig. 15 and 16, the spiral grooves 111 are uniformly distributed on the side surface of the knife shaft 11 at intervals, and two spiral grooves are illustrated in the three stirring assemblies. Accordingly, the protrusions 211 are two in number. However, the skilled person will appreciate that the number of helical grooves 111 may be three, four, etc. The uniform interval distribution can be referred to a section perpendicular to the direction of the rotation center line, if there are three spiral grooves 111, the adjacent spiral grooves 111 form an included angle of 120 degrees, and if there are four spiral grooves 111, the adjacent spiral grooves 111 form an included angle of 90 degrees. As set forth above, since the spiral grooves are uniformly spaced on the side surface of the knife shaft 11, and there are at least two spiral grooves, the auxiliary knife assembly 2 is more stable and smooth in the up-and-down reciprocating process, for example, it is not inclined and jammed in a place and cannot move up or down. In addition, as can be understood by the skilled person, in the case that the spiral groove 111 is provided in the installation portion 21, the installation portion includes a cutter shaft accommodating cavity penetrated by the cutter shaft, and at least two spiral grooves 111 are provided on a side surface of the cutter shaft accommodating cavity at even intervals. The arrangement can ensure that the auxiliary knife assembly 2 is smooth and steady in the movement process.

Referring to fig. 3 and 10, in the first stirring assembly 10 and the second stirring assembly 10, the spiral angle of the spiral groove 111 is θ, and 30 degrees ≦ θ ≦ 80 degrees, such as 30 degrees, 33 degrees, 35 degrees, 38 degrees, 40 degrees, 42 degrees, 45 degrees, 47 degrees, 50 degrees, 53 degrees, 55 degrees, 58 degrees, 60 degrees, 62 degrees, 65 degrees, 67 degrees, 70 degrees, 72 degrees, 75 degrees, 78 degrees, or 80 degrees. As set forth above, since the helix angle θ is 30 to 80 degrees, the up-and-down reciprocating speed of the attached knife assembly 2 along the rotation center line is not too fast, so that the operation is smooth, and the contact probability with the food material can be increased because the speed is not too fast, thereby better chopping the food material during the up-and-down reciprocating motion.

With continuing reference to FIGS. 3 and 10, in the first stirring assembly 10 and the second stirring assembly 10, the spiral groove 111 has a height h along the rotation center line, wherein h is 15mm ≦ 150mm, such as 15mm, 17mm, 20mm, 25mm, 28mm, 30mm, 33mm, 35mm, 38mm, 40mm, 42mm, 45mm, 48mm, 50mm, 55mm, 60mm, 63mm, 70mm, 75mm, 80mm, 85mm, 90mm, 95mm, 100mm, 105mm, 110mm, 115mm, 120mm, 125mm, 130mm, 135mm, 140mm, or 150mm. Of course, this relationship is also satisfied by the third stirring assembly 10, which is not shown. As set forth above, the height h is more than or equal to 50mm and less than or equal to 150mm, for example, in the case that the height theta is more than or equal to 30 degrees and less than or equal to 80 degrees, the vertical reciprocating motion of the attached knife assembly 2 can be further more stable and smooth, and the ascending and descending speeds are not too fast to cut the food materials better. Moreover, can also restrict through above-mentioned h attach knife tackle spare along the axial stroke of arbor 11, and then, main knife tackle spare 1 with attach knife tackle spare 2 and rotate the in-process and be difficult to lead to the cooking machine to rock. Of course, in the case of 15mm ≦ h ≦ 150mm, the helix angle may also be other values, i.e., not in the range of 30 degrees ≦ θ ≦ 80 degrees.

Referring to fig. 1, 2 and 4 and comparing with fig. 9, 10 and 13, in the first stirring assembly 10, the spiral groove 111 is spirally raised, and the spiral direction of the spiral groove 111 is opposite to the rotation direction of the cutter shaft 11, for example, the rotation direction of the cutter shaft 11 is clockwise, and the spiral direction of the spiral groove 111 is counterclockwise (the same as the cutting direction of the cutting edge of the main cutter 12). In the second stirring assembly 10 shown in fig. 9, 10 and 13, the rotation direction of the knife shaft 11 is clockwise, and the spiral direction of the spiral groove 111 is counterclockwise. As mentioned above, in conjunction with the above working process, since the spiral direction of the spiral groove 111 is opposite to the rotation direction of the knife shaft 11, the attached knife assembly 2 is driven by the knife shaft 11 to move to the highest position and fall to the lowest position by gravity, the weight requirement of the attached knife assembly 2 is lower, the reciprocating motion is easier to be realized, and the stroke of the up-and-down motion along the rotation direction of the knife shaft 11 is longer. The second stirring assembly 10 reaches the highest position by the inertia of the auxiliary knife assembly 2 because the spiral direction of the spiral groove 111 is the same as the rotation direction of the knife shaft 11. If the weight of the attached knife assembly 2 of the first stirring assembly 10 is not enough, the inertia is small, so that the attached knife assembly 2 cannot reach the highest position, and the knife shaft 11 of the first stirring assembly 10 drives the attached knife assembly 2 to reach the highest position without being influenced by the weight, therefore, the respective spiral directions of the spiral groove and the bulge are opposite to the rotation direction of the knife shaft, so that the attached knife assembly 2 is easier to realize, such as reaching the highest position.

Referring to fig. 7, 2 and 3 and comparing them with fig. 6 and 4 and to fig. 15 and 16, the arbor 11 includes a mating section provided with the helical groove 111 and a sleeve section 112 located below the mating section. Of course, where the mating segment is provided with a projection, the sleeve segment 112 is still located below the mating segment. The mounting portion 21 is a sleeve which is sleeved with the sleeve section 112 and is in clearance fit with the sleeve section. As shown in fig. 6, 7, 13 and 15, during the movement of the knife attaching assembly 2 to the uppermost position around the knife shaft 11, the top 1120 of the sleeve segment 112 is located in the sleeve, for example, the top 1120 of the sleeve segment 112 shown in fig. 2 and 3 is located in the sleeve. The top portion 1120 may be positioned in the sleeve as long as the food material is prevented from entering the sleeve, and the end surface of the mounting portion 21 and the end surface of the sleeve portion may be just adhered to each other. As set forth above, since the sleeve section 112 is in clearance fit with the mounting portion 21, and the top portion 1120 of the sleeve section 112 is still located in the sleeve in the case of the highest position, the food material is not easy to enter the spiral groove 111, and the attached knife assembly 2 is prevented from being stuck by the food material entering the spiral groove 111 and not reciprocating up and down.

Referring to fig. 2 and 3 in conjunction with fig. 4, and referring to fig. 9 and 10 in conjunction with fig. 13 in conjunction with fig. 15 and 16, in the three stirring assemblies 10, the knife shaft 11 is provided with an installation step 113. In the first and third stirring assemblies 10 and 10, the installation step 113 is located at the bottom of the spiral groove 111. The mounting step 113 includes a guide surface 1131 inclined toward the rotation center of the arbor 11. The mounting portion 21 includes an arbor receiving cavity (not labeled in the figures). The arbor holds the chamber and includes the fitting surface. When the attached knife assembly is located at the lowest position, the mounting step 113 is located in the accommodating cavity, and the mating surface is attached to the guide surface 1131 so that the rotation center line of the knife shaft 11 coincides with the rotation center line of the mounting portion 21. As set forth above, when the auxiliary knife assembly 2 is located at the lowest position, since the mounting step 113 is inclined toward the rotation center line, the rotation center line of the mounting portion 21 is more easily overlapped with the rotation center line of the knife shaft 11, and the concentricity between the auxiliary knife assembly 2 and the knife shaft 11 is improved, for example, the movement of the auxiliary knife assembly 2 along the spiral groove 111 is more facilitated after the concentricity is improved. Based on the function of the mounting step 113, the skilled person can understand that the mounting step 113 is not limited to a continuous rotating curved surface as described later, and the mounting step 113 may also be discontinuous portions evenly spaced around the axis of the rotating centerline.

Referring to fig. 2 and 3 in combination with fig. 4, and referring to fig. 9 and 10 in combination with fig. 13 in combination with fig. 15 and 16, the guide surface 1131 and the mating surface are both a surface of revolution formed by rotating a straight line forming an acute angle with the rotation center line around the rotation center. For example, the guide surface 1131 is a side surface of a circular truncated cone. As described above, the guide surface 1131 is a curved surface of revolution, which is more convenient for improving the concentricity between the attached knife assembly 2 and the knife shaft 11, and is easier to manufacture.

Referring to fig. 17, in another aspect, an embodiment of the present application discloses a food processor. The food processor comprises any one of the stirring assemblies 10, the food material container 20, and a container cover 30 and a host 40 covering the food material container 20, wherein the stirring assembly 10 is located in the food material container 20. The main body 40 drives the cutter shaft 11 to rotate. Above-mentioned cooking machine is the meat grinder, and it is the minced steak bowl to eat material container 20, and under the condition of meat grinder, the host computer is arranged in on the container lid 30, like this, the arbor 11 can not too long and upper and lower both ends rotate with the bottom and the host computer of minced steak bowl respectively and be connected, and the bowl is arranged in to the host computer and is covered, adopts the main knife tackle spare with attach the mode that knife tackle spare combined together, the meat grinder is difficult to rock more. However, based on the function of the knife assembly 2 of the stirring assembly 10, the food processor may also be a juice extractor, and correspondingly, the food material container 20 is a stirring cup, and the container cover 30 is a cup cover assembly.

Referring to fig. 2 to 8 and 9 to 14, in the first stirring assembly 10 and the second stirring assembly 10, a stop portion 114 is disposed at the top of the spiral groove 111 of the cutter shaft 11. As shown in fig. 7 and 8 and fig. 13 and 14, in the case where the attached knife assembly 2 is moved to the uppermost position, the blocking portion 114 abuts against the mounting portion 21 so that the attached knife 22 is spaced apart from the container cover 30. As set forth above, the blocking portion 114 abuts against the mounting portion 21, so that the additional knife assembly 2 can be prevented from moving further, the highest position of the additional knife assembly 2 is limited to allow a gap to be formed between the additional knife 22 and the container cover 30, and the existence of the gap prevents the additional knife assembly 2 and the container cover 30 from being worn due to friction. The structure of the stopper 114 is not limited, and a stopper function may be achieved. The size of the gap is not limited, and the knife attachment assembly 2 and the container cover 30 can be prevented from friction. In other embodiments, the upper clutch 401 may be provided with the abutting portion, in which case the abutting portion abuts against the mounting portion. Furthermore, the skilled person will understand that in the case that the spiral groove 111 is provided on the mounting portion 21, the blocking portion 114 may also be provided on the knife shaft 11, and likewise, in the case that the attached knife assembly 2 moves to the highest position, the blocking portion 114 organizes the attached knife assembly 2 to continue to move upward.

Referring to fig. 2 to 4 and 9 to 14, each of the spiral grooves 111 includes a first spiral wall 1111 and a second spiral wall 1112 provided with the blocking portion 114. The stopper 114 and the first spiral wall 1111 are separated to form a communication groove 1113, and the communication groove 1113 communicates the spiral groove 111 with the outside of the arbor 11. As set forth above, the protrusion 211 only needs to enter the spiral groove 111 from the communication groove 1113 to assemble the auxiliary cutter assembly 2 with the arbor, and the assembly between the auxiliary cutter assembly 2 and the arbor 11 is convenient. Moreover, the detachable assembly of the auxiliary knife assembly 2 and the main knife assembly 1 can be realized through the through groove 1113, so that a small amount of food materials can be processed only by the main knife assembly 1, and more food materials can be processed by the main knife assembly 1 and the auxiliary knife assembly 2 together, so that different requirements of the stirring assembly are met.

Referring to fig. 17 and 18 in combination with fig. 15 and 16, the food processor equipped with the stirring assembly 10 shown in fig. 17 is a third stirring assembly 10 shown in fig. 15 and 16. The third stirring assembly 10 differs from the first two stirring assemblies 10 mainly in that: the third stirring assembly 10 is not provided with the blocking portion 114. The following detailed description is made in conjunction with the accompanying drawings:

the main machine 40 includes an upper clutch 401. The arbor 11 comprises a meshing portion 13 and a sleeve segment 112 provided with the helical groove 111. As shown in fig. 16, the knife shaft 11 includes a fitting section provided with the spiral groove 111, and the fitting section includes an end surface 1101. The engagement portion 13 is provided on an end face 1101 of the mating segment. The helical groove 111 extends to the end face 1101. As shown in fig. 15, the mounting portion 21 is provided with an abutting portion 212. Referring to fig. 19, in the case where the attached knife assembly 2 moves to the uppermost position around the knife shaft 11, the upper clutch 401 abuts against the abutting portion 212 to allow a space between the attached knife 22 and the container cover 30. As described above, by extending the spiral groove 111 to the end surface 1101, it is easy to machine the spiral groove 111, assemble the attached blade assembly 2 to the arbor 11, and install the attached blade assembly 2. After the upper clutch 401 abuts against the abutting portion 212 to form a gap between the attached knife 22 and the container cover 30, the existence of the gap prevents the attached knife 22 and the container cover 30 from being worn due to friction, and the service life of the attached knife assembly 2 is prolonged. In addition, the purpose can be realized only by arranging the abutting part on the mounting part, and the friction between the attached knife and the container cover is avoided through a simple structure. Also, in this embodiment, the size of the gap is not limited, and the knife assembly 2 and the container cover 30 may be prevented from being rubbed. In addition, the spiral groove 111 extends to the end face, so that the auxiliary knife assembly 2 can be detachably assembled with the main knife assembly 1, and therefore, for a small amount of food materials, only the main knife assembly 1 can be used for processing; for more food materials, the main cutter component 1 and the auxiliary cutter component 2 can be used for processing together, so that the stirring component can process different amounts of food materials, and different requirements are met

In the above, the abutting portion 212 provided on the mounting portion 21 abuts against the upper clutch 401 and the stopping portion 114 limits the stroke of the attached knife assembly 2, and how to make the attached knife 22 and the container cover 30 have a gap therebetween, so as to avoid damage to the attached knife 22 and/or the container cover 30 due to friction, it can be understood by a skilled person that other structures may be provided to achieve the gap, for example, the abutting portion 212 is provided on the upper clutch 401, in which case, the abutting portion 212 abuts against the mounting portion 21, and the purpose of limiting the stroke of the attached knife assembly 2 can be achieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the scope of the present application.

Claims (15)

1. A blending assembly, comprising:

the main cutter assembly (1) comprises a cutter shaft (11) and a main cutter (12) assembled on the cutter shaft (11);

the auxiliary knife assembly (2) comprises an installation part (21) and an auxiliary knife (22) connected with the installation part (21), and the installation part (21) is connected with the knife shaft (11) through a reciprocating mechanism; in the intermittent rotation process of the cutter shaft (11), the cutter shaft (11) drives the auxiliary cutter assembly (2) to rotate intermittently around the rotation central line of the cutter shaft (11), and the auxiliary cutter assembly (2) reciprocates up and down along the cutter shaft (11) under the action of the reciprocating mechanism.

2. The stirring assembly according to claim 1, wherein the reciprocating mechanism comprises a spiral groove (111) and a protrusion (211), the knife shaft (11) is provided with one of the spiral groove (111) and the protrusion (211), and the mounting portion (21) is provided with the other of the spiral groove (111) and the protrusion (211);

the spiral groove (111) is spirally arranged along the rotating central line of the cutter shaft (11) in a rising manner, and the protrusion (211) is matched with the spiral groove (111) to realize the up-and-down reciprocating motion.

3. Stirring assembly according to claim 2, wherein said protrusions (211) are arranged spirally rising along the rotation centre line of said knife shaft (11).

4. The stirring assembly according to claim 3, wherein the helical groove (111) and the projection (211) both rise helically in a direction opposite to the direction of rotation of the knife shaft (11).

5. Stirring assembly according to claim 2, wherein a blocking part (114) is provided on the blade shaft (11); when the cutter attaching assembly (2) moves to the highest position, the blocking portion (114) abuts against the mounting portion (21).

6. The stirring assembly according to claim 5, characterized in that the helical groove (111) is provided on the blade shaft (11), the blocking portion (114) is provided on top of the helical groove (111), the helical groove (111) comprising a first helical wall (1111) and a second helical wall (1112); the blocking part (114) and the first spiral wall (1111) are arranged at intervals to form a communication groove (1113); the communicating groove (1113) is communicated with the spiral groove (111) and the outside of the cutter shaft (11).

7. The stirring assembly according to claim 2, characterized in that said helical grooves (111) are at least two; under the condition that the spiral grooves (111) are arranged on the cutter shaft (11), all the spiral grooves (111) are uniformly arranged on the side surface of the cutter shaft (11) at intervals;

helicla flute (111) set up in under the condition of installation department (21), the installation department include with the arbor that the arbor wore to establish holds the chamber, all the even spaced setting of helicla flute set up in the arbor holds the inside wall in chamber.

8. Stirring assembly according to claim 2, characterised in that the helix angle of the helical groove (111) is θ,30 degrees ≦ θ ≦ 80 degrees.

9. Stirring assembly according to claim 2, wherein the helical groove (111) has a height h along the rotation centre line of 15mm ≦ h ≦ 150mm.

10. Stirring assembly according to claim 2, wherein the blade shaft (11) comprises a mating section provided with the helical groove (111) or the protrusion (211) and a sleeve section (112) below the mating section; the mounting part (21) is a sleeve which is sleeved with the sleeve section and is in clearance fit with the sleeve section; when the knife attaching assembly (2) moves to the uppermost position, the top (1120) of the sleeve segment (112) is located within the sleeve.

11. Stirring assembly according to claim 1, wherein the knife shaft (11) is provided with a mounting step (113), the mounting step (113) comprising a guiding surface (1131) inclined towards the rotation centre line;

the mounting part (21) comprises a cutter shaft accommodating cavity, and the cutter shaft accommodating cavity comprises a matching surface; under the condition that the attached knife assembly (2) is located at the lowest position, the installation step (113) is located in the knife shaft accommodating cavity, the matching surface is attached to the guide surface (1131), and the rotating center line of the knife shaft (11) is overlapped with the rotating center line of the installation part (21).

12. The assembly of claim 11, wherein the guide surface (1131) and the engagement surface are each surfaces of revolution formed by a line that is at an acute angle to the centerline of revolution and rotates about the centerline of revolution.

13. Stirring assembly according to any of claims 2 to 4 and 7 to 11, wherein the knife shaft (11) comprises an engaging portion (13) and a mating section provided with the helical groove (111); the engaging portion (13) is provided to an end face (1101) of the fitting section; the helical groove (111) extending to the end face (1101);

the mounting portion (21) is provided with an abutting portion (212) extending along a rotation center line of the cutter shaft (11).

14. A food processor, comprising the stirring assembly (10) of any one of claims 1 to 12, a food material container (20), a container cover (30) covering the food material container (20), and a main machine (40), wherein the stirring assembly (10) is located in the food material container (20), and the main machine (40) comprises a series motor; the series motor drives the cutter shaft (11) to rotate, and when the attached cutter assembly (2) is located at the highest position, a gap is formed between the attached cutter (22) and the container cover (30).

15. A food processor, comprising the stirring assembly (10) of any one of claims 2 to 4 and 7 to 12, a food material container (20), a container cover (30) covering the food material container (20), and a main machine (40),

the stirring assembly (10) is positioned in the food material container, and the cutter shaft (11) comprises an engaging part (13) and a matching section provided with the spiral groove (111); the engaging part (13) is arranged on an end face (1101) of the matching section; the helical groove (111) extending to the end face (1101); the main machine (40) comprises a series motor and an upper clutch (401) connected with the series motor, and the series motor is connected with the cutter shaft (11) through the upper clutch (401) to drive the stirring assembly (10) to rotate;

one of the upper clutch (401) and the mounting portion (21) is provided with an abutting portion (212), and in the case where the attached knife assembly (2) is moved to the highest position, the other of the upper clutch (401) and the mounting portion (21) abuts against the abutting portion (212), with a space between the attached knife (22) and the container cover (30).

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