Stirring assembly and food processing machine

Abstract

The utility model discloses a stirring assembly and a food processing machine, and relates to the technical field of food processing machinery, the stirring assembly comprises a main shaft, the outer side wall of the main shaft is provided with a first connecting piece; an assembling cavity for containing part of the main shaft is formed in the connecting base, and a second connecting piece is arranged on the inner side wall of the assembling cavity; the tail end of the stirring tool is connected with one of the main shaft and the connecting seat; one of the first connecting piece and the second connecting piece is a guide rail groove, and the other one of the first connecting piece and the second connecting piece is a limiting column. According to the stirring assembly and the food processing machine, the technical problem that generated metal powder falls into food materials is solved, the limiting column serves as a main stress point to drive the stirring tool to rotate, and when the main shaft drives the stirring tool to rotate, the metal powder generated by friction between the main shaft and the inner wall of the connecting base falls into the assembling cavity; the purpose that the metal powder is not exposed is achieved, the metal powder is effectively prevented from entering the food material barrel, and sanitation and safety are effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of food processing equipment, in particular to a stirring assembly and a food processing machine. Background Art

[0002] At present, as a kind of food processing equipment, a chef machine can already realize various functions. For example, it integrates functions such as dough kneading, whipping, and stirring. In order to meet the usage requirements of commercial, private kitchens and other scenarios, the processing capacity of the chef machine is also designed to be increased. Taking dough kneading as an example, the maximum amount of dough kneaded at one time is increased. However, when the chef machine is in use, due to the resistance of stirring dough, butter, etc., collisions, frictions, etc. will occur at the connection between the power shaft and the stirring accessories. Especially in private kitchens and commercial occasions, it is used frequently and has a long continuous working time, and the increased processing amount of dough, etc. will also increase the resistance suffered. Therefore, the power shaft and the stirring accessories are fatigued and worn, and both are usually made of metal. The powder generated by the wear will fall off and mix into the food materials, affecting the user experience and causing hygienic and safety problems.

[0003] In view of this problem, it has been proposed to add a blocking piece at the connection between the power shaft and the stirring accessories. For example, a plastic bushing is added between the power shaft and the stirring accessories to prevent the direct contact of the two metal parts with the plastic bushing, so as to reduce the generation amount of worn metal powder. However, it is found in the test that for the food processing machine adopting this method, it is still difficult to avoid the worn metal powder from falling into the food materials. Therefore, a stirring assembly for solving the above problems is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a stirring assembly and a food processing machine, which solve the technical problem that the metal powder generated by fatigue wear falls into the food materials.

[0005] To achieve the above purpose, the utility model provides a stirring assembly, including:

[0006] A main shaft, on the outer side wall of which a first connecting piece is provided;

[0007] A connecting seat, inside which an assembly cavity for accommodating part of the main shaft is provided, and on the inner side wall of the assembly cavity a second connecting piece is provided;

[0008] A stirring tool, the end of which is connected to one of the main shaft and the connecting seat;

[0009] One of the first connecting piece and the second connecting piece is a guide rail groove, the guide rail groove includes a guiding section and a limiting section, and the other of the first connecting piece and the second connecting piece is a limiting post;

[0010] When the main shaft is assembled with the connecting seat, the limiting post moves along the guiding section to the limiting section, driving the stirring tool to rotate.

[0011] Preferably, the end of the stirring tool is connected to the connecting seat, and the assembly cavity of the connecting seat is open towards the direction of the main shaft.

[0012] Preferably, a guide rail groove is provided on the outer side wall of the main shaft, and a limiting post is provided on the inner side wall of the assembly cavity.

[0013] Preferably, in the radial direction, the length of the limiting post is greater than the depth of the guide rail groove.

[0014] Preferably, a locking portion is provided at the end of the limiting section away from the guiding section, and the locking portion is adapted to the outer contour of the limiting post.

[0015] Preferably, a limiting sleeve is sleeved outside the main shaft away from the connecting seat.

[0016] Preferably, a sealing structure is provided between the main shaft and the limiting sleeve, and the sealing structure includes at least one sealing ring.

[0017] Preferably, a limiting post is provided on the outer side wall of the main shaft, and a guide rail groove is provided on the inner side wall of the assembly cavity.

[0018] Preferably, the stirring tool is at least one of a dough hook, a stirring paddle, and an egg beater cage.

[0019] A food processing machine includes the stirring assembly described in any one of the above.

[0020] Compared with the above background technology, a stirring assembly provided by the present utility model has the following beneficial effects: By designing the main shaft and the connecting seat, power transmission is achieved through the assembly of the two, driving the stirring tool to rotate to stir the food ingredients. At the same time, a second connecting piece is designed on the inner side wall of the assembly cavity of the connecting seat. In this way, when the connecting seat is connected to the main shaft, the connecting structure of the two is located in the assembly cavity of the connecting seat, and the metal powder generated by wear falls into the assembly cavity, achieving the purpose of non-exposure of the metal powder, effectively avoiding the metal powder from falling into the food ingredients, and ensuring the hygienic safety during the food processing process. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0022] Figure 1The front view schematic diagram of the stirring assembly provided by the embodiment of the present utility model;

[0023] Figure 2 The side view schematic diagram of the stirring assembly provided by the embodiment of the present utility model;

[0024] Figure 3 The front view schematic diagram of the main shaft provided by the embodiment of the present utility model;

[0025] Figure 4 The side view schematic diagram of the main shaft provided by the embodiment of the present utility model;

[0026] Figure 5 is Figure 1 The sectional schematic diagram at A-A in

[0027] Figure 6 The top view schematic diagram of the stirring tool provided by the embodiment of the present utility model;

[0028] Figure 7 The assembly schematic diagram of the drive shaft, the limit sleeve and the main shaft provided by the embodiment of the present utility model.

[0029] Specifically, 1-main shaft; 101-clamping part; 102-engaging groove; 2-guide groove; 201-guiding section; 202-limiting section; 3-stirring tool; 4-connecting seat; 5-assembly cavity; 6-positioning post; 7-locking part; 8-first annular groove; 9-second annular groove; 10-drive shaft; 11-retaining ring; 12-rolling bearing; 13-sealing ring; 14-limit sleeve. Detailed implementation manners

[0030] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the present utility model will be further described in detail below with reference to the drawings and specific implementation manners.

[0031] Refer to the attached Figure 1 and the attached Figure 2 , a stirring assembly includes: a main shaft 1, a connecting seat 4 and a stirring tool 3. Among them, the stirring tool 3 is in direct contact with the food ingredients to stir the food ingredients, and one of the main shaft 1 and the connecting seat 4 is connected to an external power structure to drive the stirring tool 3 to stir the food ingredients under the action of external power.

[0032] Specifically, a first connecting member is provided on the outer wall of the main shaft 1, and an assembly cavity 5 for accommodating a part of the main shaft 1 is provided inside the connecting seat 4. That is, when the main shaft 1 and the connecting seat 4 are assembled, a part of the main shaft 1 is inserted into the assembly cavity 5, and a part of the main shaft 1 is outside the assembly cavity 5. As for the proportion of the length of the part of the main shaft 1 inserted into the assembly cavity 5 to the total length of the main shaft 1, this embodiment does not make specific restrictions and can be adjusted according to specific requirements. A second connecting member is provided on the inner side wall of the assembly cavity 5. During assembly, the cooperation of the first connecting member and the second connecting member is used to realize the connection between the main shaft 1 and the connecting seat 4. In this embodiment, the second connecting member is designed on the inner side wall of the assembly cavity 5. In this way, the outer contour of the connection part of the assembly cavity 5 still remains a closed structure. The advantage is that when the main shaft 1 and the connecting seat 4 are assembled, the metal powder generated by wear during the use of the stirring assembly will not leak out from the connection part of the first connecting member and the second connecting member, thereby preventing the metal powder generated by wear from falling into the food materials from this connection part.

[0033] Among them, the end of the stirring tool 3 is connected to one of the main shaft 1 and the connecting seat 4. That is, when the end of the stirring tool 3 is connected to the main shaft 1, it is one implementation manner, and when the end of the stirring tool 3 is connected to the connecting seat 4, it is another implementation manner. Specifically, when the main shaft 1 is connected to an external power source, the end of the stirring tool 3 is connected to the connecting seat 4; when the connecting seat 4 is connected to an external power source, the end of the stirring tool 3 is connected to the main shaft 1.

[0034] One of the first connecting member and the second connecting member is a guide rail groove 2, the guide rail groove 2 includes a guiding section 201 and a limiting section 202, and the other of the first connecting member and the second connecting member is a limiting post 6; when the main shaft 1 and the connecting seat 4 are assembled, the limiting post 6 moves along the guiding section 201 to the limiting section 202, driving the stirring tool 3 to rotate.

[0035] When the stirring assembly of this embodiment is in use, the main shaft 1 and the connecting seat 4 are assembled and connected through the action of the guide rail groove 2 and the limiting post 6, so that the action of the external power can be transmitted to the stirring tool 3, driving the stirring tool 3 to rotate to stir the food materials. At the same time, the guide rail groove 2 and the limiting post 6 that realize the connection between the main shaft 1 and the connecting seat 4 are wrapped by the connecting seat 4 after the two are assembled. In this way, the metal powder generated by wear during the use of the stirring assembly will still remain in the assembly cavity 5 due to the wrapping action of the connecting seat 4 and will not leak out from the connection part of the main shaft 1 and the connecting seat 4, ensuring the safety and hygiene of the food materials during stirring.

[0036] In one embodiment of the present utility model, refer to the attached Figure 3 、attached Figure 4 and attached Figure 5, the end of the stirring tool 3 is connected to the connecting seat 4, and the assembly cavity 5 of the connecting seat 4 is openly arranged in the direction of the main shaft 1. Taking the direction shown in the figure as an example, the main shaft 1 is at the top, and the stirring tool 3 and the connecting seat 4 are below the main shaft. At this time, the assembly cavity 5 is openly arranged upward. The advantage is that the bottom of the assembly cavity 5 is closed at this time, and the metal powder generated by wear during use falls directly into the bottom of the assembly cavity 5 under the action of gravity, which has a simple structure and low production and assembly costs. Specifically, the stirring tool 3 and the connecting seat 4 are integrally arranged, and the assembly cavity 5 extends downward from the upper end surface of the connecting seat 4. The specific extension length of the assembly cavity 5 in the connecting seat 4 is not specifically limited in this embodiment, and it only needs to meet the assembly connection of the main shaft 1 and the connecting seat 4. In this embodiment, in order to improve the effect of preventing the leakage of metal powder, the length of the assembly cavity 5 can be increased, that is, when the main shaft 1 is assembled with the connecting seat 4, the distance between the lower end of the main shaft 1 and the bottom of the assembly cavity 5 can be increased, and the amount of metal powder stored can be increased by using the increased space. The external power is connected to the upper end of the main shaft 1, and the main shaft 1 is driven to rotate by the external power. The outer wall of the main shaft 1 is provided with a first connecting piece, which is connected to the second connecting piece on the inner wall of the assembly cavity 5, so that the main shaft 1 drives the connecting seat 4 and the stirring tool 3 to rotate, and the rotation of the stirring tool 3 is used to complete the stirring of the food.

[0037] Specifically, a guide groove 2 is provided on the outer wall of the main shaft 1, that is, the first connecting part is the guide groove 2, and a limiting column 6 is provided on the inner wall of the assembly cavity 5, that is, the second connecting part is the limiting column 6. The advantage of this structure is that the guide groove 2 is designed on the outer wall of the main shaft 1 with more material, that is, it is avoided to open the guide groove 2 on the inner wall of the assembly cavity 5. The reason is that compared with the main shaft 1, the inner wall of the assembly cavity 5 is relatively thin. If the guide groove 2 is opened on the inner wall of the assembly cavity 5, it will affect the self-strength of the connecting seat 4. In this way, the limiting column 6 is designed on the inner wall of the assembly cavity 5, and the guide groove 2 is designed on the outer wall of the main shaft 1. While preventing metal powder from falling outward, it can also improve the reliability of the entire stirring assembly and realize reliable stirring of the food by the stirring tool 3.

[0038] In this embodiment, in the radial direction, the length of the limit column 6 is greater than the depth of the guide rail groove 2, so that after the main shaft 1 and the connecting seat 4 are assembled, Figure 5 As shown, a gap is retained between the outer wall of the main shaft 1 and the inner wall of the assembly cavity 5, that is, the power is mainly transmitted between the main shaft 1 and the connecting seat 4 by relying on the interference between the limit column 6 and the guide groove 2, so as to reduce the contact area of the two components during work, thereby reducing the amount of metal powder generated by contact wear, which is beneficial to improving the effect of preventing metal powder from falling of the stirring assembly.

[0039] Preferably, a limiting post 6 is provided on the inner side wall of the assembly cavity 5. Correspondingly, a guide rail groove 2 is provided on the outer wall of the lower end of the main shaft 1. Through the cooperation of the limiting post 6 and a guide rail groove 2, it should be noted that during the rotation of the main shaft 1 driving the stirring tool 3, one end of the limiting post 6 and the guide rail groove 2 are always in contact. There will be no friction and slipping between the main shaft 1 and the connecting seat 4. Of course, according to actual needs, two limiting posts 6 can be arranged in an array on the inner side wall of the assembly cavity 5. Correspondingly, the outer wall of the lower end of the main shaft 1 is provided with guide rail grooves 2 equal in number to the limiting posts 6, and each limiting post 6 cooperates with a guide rail groove 2. Since the main shaft 1 has two symmetric force points, the stability of the main shaft 1 during rotation can be improved.

[0040] When the main shaft 1 and the connecting seat 4 are assembled, the limiting post 6 moves along the guiding section 201 to the limiting section 202, driving the stirring tool 3 to rotate. Among them, the length direction of the guiding section 201 is substantially consistent with the axis direction of the main shaft 1, and the limiting section 202 is substantially perpendicular to the guiding section 201. The limiting post 6 enters the limiting section 202 from the guiding section 201. After entering the limiting section 202, the main shaft 1 can drive the stirring tool 3 to rotate synchronously. Since mainly the limiting post 6 is in contact with the limiting section 202, it effectively avoids the mutual friction between the outer wall of the main shaft 1 and the inner wall of the connecting seat 4, thereby reducing the generation of metal powder.

[0041] In other embodiments of the present invention, a limiting post 6 is provided on the outer side wall of the main shaft 1, that is, the first connecting member is the limiting post 6, and a guide rail groove 2 is provided on the inner side wall of the assembly cavity 5, that is, the second connecting member is the guide rail groove 2. Thus, in the design of the stirring assembly, the position of the specific connection structure can be flexibly designed according to needs. Specifically, referring to Figure 5 the example of the assembly direction, the limiting post 6 is provided at the lower end of the main shaft 1, the guide rail groove 2 is provided on the inner wall of the assembly cavity 5, and the guiding section 201 extends to the upper end surface of the connecting seat 4. The guiding section 201 is substantially parallel to the axis of the connecting seat 4, and the limiting section 202 is substantially perpendicular to the guiding section 201. At this time, the limiting section 202 is located at the lower end of the guiding section 201. The external power drives the main shaft 1 to rotate, and the main shaft 1 drives the stirring tool 3 to rotate synchronously. During the process of the main shaft 1 driving the stirring tool 3 to rotate, the metal powder generated by the wear between the inner wall of the main shaft 1 and the connecting seat 4 falls into the assembly cavity 5, preventing the metal powder from falling onto the food ingredients.

[0042] It should be noted that by clamping and connecting the guide rail groove 2 with the limiting post 6, the main shaft 1 can be inserted into the assembly cavity 5 and rotated forward by a certain angle to stably install the stirring tool 3. Similarly, by lifting the stirring tool 3 by a certain height and rotating it backward by a certain angle, the stirring tool 3 can be disengaged from the main shaft 1, which is more convenient for later maintenance and replacement of the stirring tool 3.

[0043] In an embodiment of the present utility model, a locking portion 7 is provided at the end of the limiting section 202 away from the guiding section 201. The locking portion 7 is adapted to the outer contour of the limiting post 6. Thus, when the limiting post 6 enters the locking portion 7, the locking portion adapted to its contour can restrict the two side surfaces of the limiting post 6, avoiding the metal powder generated by the shaking and increased wear of the limiting post 6 in the guide rail groove 2. Preferably, the locking portion 7 is a concave surface. Correspondingly, the outer shape of the limiting post 6 is circular or arc-shaped, so that when the main shaft 1 and the connecting seat 4 are assembled, the limiting post 6 can move smoothly in the guide rail groove 2. After the stirring tool 3 is connected to the main shaft 1, a part of the outer side wall of the limiting post 6 can be attached to the concave surface, so that the limiting post 6 and the limiting section 202 of the guide groove can cooperate more stably, restricting the relative rotation of the limiting post 6 with respect to the guide rail groove 2 and improving the stability when the stirring tool 3 rotates. In other deformations of this embodiment, the locking portion can also be a transverse section (not shown in the figure). The transverse section and the limiting section 202 are not on the same horizontal plane. The limiting post 6 cooperates with the transverse section to limit the up and down movement of the limiting post 6 relative to the guide rail groove 2, also improving the stability when the stirring tool 3 rotates and reducing the metal powder generated by the up and down movement of the limiting post 6 in the guide rail groove 2 and the collision and wear between the two.

[0044] Reference appendix Figure 7 A limiting sleeve 14 is sleeved on the outside of the main shaft 1 away from the connecting seat 4, that is, a limiting sleeve 14 is sleeved on the outside of the main shaft 1 close to the external power. Specifically, the limiting sleeve 14 is fixedly connected to the machine frame (not shown in the figure). Here, the machine frame refers to the main structure of the machine for installing the stirring assembly in this embodiment. When the main shaft 1 rotates driven by the power source of the machine, since the limiting sleeve 14 is fixedly connected to the machine frame of the machine, the main shaft 1 rotates relative to the limiting sleeve 14. Through the limiting sleeve 14, the main shaft 1 can be corrected to avoid the main shaft 1 being deflected due to eccentric force. Specifically, a rolling bearing 12 is sleeved on the outer side wall of the main shaft 1. The outer peripheral side surface of the rolling bearing 12 is fixed to the inner wall of the limiting sleeve 14. Through the rolling bearing 12, the main shaft 1 and the limiting sleeve 14 are stably matched, thereby improving the limiting and correcting effect of the limiting sleeve 14 on the position state of the main shaft 1.

[0045] A first annular groove 8 and a second annular groove 9 are sequentially arranged on the outer side wall of the main shaft 1 from top to bottom. The first annular groove 8 and the second annular groove 9 are arranged in parallel. A snap ring 11 is connected at the position of the first annular groove 8. The position of the rolling bearing 12 is limited by the snap ring 11 to avoid the axial displacement of the rolling bearing 12 in the axial direction of the main shaft 1 and improve the stability when the main shaft 1 rotates.

[0046] A sealing structure is provided between the main shaft 1 and the limit sleeve 14. Preferably, the sealing structure is specifically a sealing ring 13 disposed at the position of the second annular groove 9. The sealing ring 13 is used to block the lubricating oil at the connection between the main shaft 1 and the limit sleeve 14, preventing the lubricating oil from flowing along the main shaft 1 onto the stirring tool 3 and into the food materials, thereby further improving food hygiene and safety. To improve the sealing effect on the lubricating oil, more than two sealing rings can be installed at intervals along the axial direction of the main shaft 1.

[0047] A clamping portion 101 is integrally provided at the upper end of the main shaft 1. Two engaging grooves 102 are symmetrically arranged on the outer peripheral side of the clamping portion 101. The surface of the engaging groove 102 is a plane. The output shaft of the external power applies a rotational force to the main shaft 1 through the engaging groove 102 to drive the main shaft 1 to rotate, and it is not easy to slip, so the transmission connection stability with the main shaft 1 is better.

[0048] Reference appendix Figure 6 At this time, the stirring tool 3 is a dough hook, which is integrally spiral, so that the stirring tool 3 extends as far as possible to the inner side wall of the dough mixing bucket, contacting the dough at various positions in the dough mixing bucket, and improving the stirring effect. Of course, the stirring tool 3 can also be one of a stirring paddle and an egg beater cage. According to the specific work done by the food processing machine, the type of the stirring tool 3 can be freely selected, and the purpose is to achieve the best stirring effect.

[0049] In addition to the above-mentioned stirring assembly, the present utility model also provides a food processing machine including the stirring assembly disclosed in the above embodiment. The food processing machine includes a frame, and a power source is designed inside the frame. Commonly, a motor can be used. The power output end of the motor forms a driving shaft 10. The driving shaft 10 can be connected to the main shaft 1 or the connecting seat 4 of the stirring assembly. Then, by using the first connecting member on the outer side wall of the main shaft 1 and the second connecting member on the inner side wall of the assembly cavity 5 of the connecting seat 4, the connection between the main shaft 1 and the connecting seat 4 is realized. Also, because one of the main shaft 1 and the connecting seat 4 is connected to the stirring tool 3, the driving shaft 10 is further driven to drive the stirring tool 3 to rotate, completing operations such as dough mixing, stirring, and whipping. At the same time, for the food processing machine of this embodiment, due to the adoption of the above-mentioned stirring assembly, it can prevent metal powder generated by wear during work from falling outward from the connection to the food, improving hygiene and safety during use.

[0050] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0051] In this article, specific examples are used to elaborate on the principles and implementation modes of the present utility model. The description of the above embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art of this technology, without departing from the principles of the present utility model, several improvements and modifications can be made to the present utility model, and these improvements and modifications also fall within the protection scope of the present utility model.

Claims

1. A stirring assembly, characterized in that, Comprising: A main shaft, on the outer sidewall of which a first connecting member is provided; A connecting seat, inside which an assembly cavity for accommodating part of the main shaft is provided, and on the inner sidewall of the assembly cavity a second connecting member is provided; A stirring tool, the end of which is connected to one of the main shaft and the connecting seat; One of the first connecting member and the second connecting member is a guide rail groove, the guide rail groove includes a guiding section and a limiting section, and the other of the first connecting member and the second connecting member is a limiting post; When the main shaft and the connecting seat are assembled, the limiting post moves along the guiding section to the limiting section, driving the stirring tool to rotate.

2. The stirring assembly according to claim 1, wherein The end of the stirring tool is connected to the connecting seat, and the assembly cavity of the connecting seat is open towards the direction of the main shaft.

3. The stirring assembly according to claim 2, wherein, A guide rail groove is provided on the outer sidewall of the main shaft, and a limiting post is provided on the inner sidewall of the assembly cavity.

4. A stirring assembly according to claim 1, characterized in that, In the radial direction, the length of the limiting post is greater than the depth of the guide rail groove.

5. A stirring assembly according to claim 1 or 4, characterized in that A stopping portion is provided at the end of the limiting section away from the guiding section, and the stopping portion is adapted to the outer contour of the limiting post.

6. The stirring assembly according to claim 2, characterized in that, A limiting sleeve is sleeved outside the main shaft away from the connecting seat.

7. A stirring assembly according to claim 6, wherein A sealing structure is provided between the main shaft and the limiting sleeve, and the sealing structure includes at least one sealing ring.

8. A stirring assembly according to claim 2, characterized in that, A limiting post is provided on the outer sidewall of the main shaft, and a guide rail groove is provided on the inner sidewall of the assembly cavity.

9. A stirring assembly according to claim 1, characterized in that, The stirring tool is at least one of a dough hook, a stirring paddle and an egg beater cage.

10. A food processing machine, characterized in that, Comprising the stirring assembly according to any one of claims 1-9.

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