Dough mixer

Abstract

The utility model relates to a dough kneading machine which comprises a dough kneading barrel, the dough kneading knife is arranged in the dough kneading barrel, the dough kneading knife comprises a connecting part and a stirring section fixed with the connecting part, and the projection of the whole dough kneading knife in the section along the axis perpendicular to the connecting part is in an involute shape. When the dough kneading machine is specifically used, the dough kneading knife of the dough kneading machine can rotate in the dough kneading barrel to stir and mix flour, and after the flour is clustered, the dough kneading knife can be combined with the barrel wall of the dough kneading barrel to repeatedly extrude dough, so that dough kneading is quickly completed, and the chewiness of the dough is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pasta processing, in particular to a dough mixer. Background Art

[0002] In order to reduce the increase in motor power caused by dough resistance, the existing dough kneading knife is designed with a relatively small length and area of ​​the stirring part of the blade, and the shape is flat or slightly curved. The contact surface between the blade and the dough is small, and the flour can only be beaten periodically, and it cannot be combined with the barrel wall to apply pressure to the flour, resulting in low dough kneading efficiency and poor dough chewiness. Therefore, a dough kneading knife that can improve dough kneading efficiency and dough chewiness is urgently needed. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art described above, according to one aspect of the utility model, a dough kneading knife is provided to improve the dough kneading efficiency and the elasticity of the dough.

[0004] Dough mixer, comprising:

[0005] dough mixing barrel;

[0006] A dough kneading knife is arranged in a dough kneading passage, and the dough kneading knife comprises a connecting portion and a stirring section fixed to the connecting portion. The projection of the dough kneading knife as a whole in a cross section along an axis perpendicular to the connecting portion is in an involute shape.

[0007] In one embodiment of the utility model, the end of the stirring section close to the connecting portion is the first end, and the end of the stirring section away from the connecting portion is the second end. In the axial direction of the connecting portion, the height of the stirring section is gradually increased from the first end to the second end.

[0008] In one embodiment of the utility model, the dough kneading knife also includes a transition section, and the transition section is arranged between the stirring section and the connecting part. In the axial direction along the connecting part, the height of the transition section is equal to the height of the connecting part, and the height of the stirring section is greater than the height of the transition section.

[0009] In one embodiment of the utility model, the upper end surface of the transition section is flush with the upper end surface of the connecting portion, and the lower end surface of the transition section is flush with the lower end surface of the connecting portion;

[0010] The connecting portion may be specifically cylindrical, and both sides of the transition section facing each other along the thickness direction thereof are in an arc-shaped transition to the connecting portion.

[0011] In an embodiment of the present invention, the two opposite sides of the stirring section along its thickness direction and the two opposite sides of the transition section along its thickness direction have an arc transition in a one-to-one correspondence.

[0012] In one embodiment of the utility model, an upper arc-shaped notch is provided at the upper portion of the stirring section, and one end of the upper arc-shaped notch close to the transition section is arranged flush with the upper end surface of the transition section;

[0013] A lower arc-shaped notch is arranged at the lower part of the stirring section, and one end of the lower arc-shaped notch close to the transition section is arranged flush with the lower end surface of the transition section.

[0014] In an embodiment of the present invention, the arc radius of the upper arc-shaped notch of the stirring section is greater than the arc radius of the lower arc-shaped notch of the stirring section.

[0015] In one embodiment of the utility model, it also includes a motor, which is drivingly connected to the connecting part of the dough kneading knife; a worm is provided at the output end of the motor, and a turbine is provided at the connecting part of the dough kneading knife, and the turbine and the worm are meshingly connected.

[0016] In one embodiment of the utility model, a base is further included, and the motor, the worm and the turbine are arranged in the base, and a transmission shaft is arranged between the turbine and the connection part of the dough kneading knife.

[0017] In an embodiment of the present utility model, the stirring section includes a conveying section and an extrusion section, and the conveying section is arranged between the extrusion section and the transition section.

[0018] In summary, the dough mixer provided by the utility model has the following technical effects:

[0019] When in use, the dough knife can rotate in the dough barrel to stir and mix the flour. After the flour is formed into a ball, the dough knife can combine with the barrel wall of the dough barrel to repeatedly squeeze the dough, quickly complete the dough, and greatly improve the dough's elasticity. The principle of repeatedly squeezing the dough is that the working shape of the dough knife specifically adopts an involute design. When working, it does not only slap the dough periodically like the blade of the traditional design, but continuously rubs the dough, that is, it can make the dough rotate along the barrel wall of the dough barrel (the dough revolves). The dough knife squeezes the dough and makes the dough rotate (the dough rotates on itself), which can greatly improve the dough kneading efficiency and the elasticity of the dough. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of a blade in a dough mixer in the prior art;

[0021] Figure 2 A schematic diagram of the structure of a dough mixer according to an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the disassembled state of the dough mixer according to an embodiment of the utility model;

[0023] Figure 4A schematic diagram of the structure of a dough kneading knife in a dough kneading machine according to an embodiment of the utility model;

[0024] Figure 5 Another structural schematic diagram of a dough kneading knife in a dough kneading machine according to an embodiment of the utility model;

[0025] Figure 6 It is another structural schematic diagram of the dough kneading knife in the dough kneading machine according to an embodiment of the utility model;

[0026] Figure 7 It is a structural schematic diagram of the assembly of a dough kneading barrel and a dough kneading knife in a dough kneading machine according to an embodiment of the utility model;

[0027] Figure 8 A cross-sectional view of the internal structure of a dough mixer according to an embodiment of the present utility model;

[0028] Fig. 9 It is a schematic structural diagram of a dough kneading knife in a dough kneading machine according to another embodiment of the utility model;

[0029] Figures: 1-dough barrel, 2-dough knife, 21-connecting part, 22-stirring section, 221-conveying section, 222-extrusion section, 23-transition section, 24-upper arc notch, 25-lower arc notch, 26-protrusion, 3-motor, 31-worm, 32-turbine, 33-drive shaft, 4-base, 5-blade, 6-dough. DETAILED DESCRIPTION

[0030] For better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0033] The embodiment of the utility model discloses a dough mixer, which can be specifically referred to in Figure 1-Figure 9In the embodiment shown in the figure, the dough mixer specifically includes a dough mixing barrel 1 and a dough mixing knife 2 arranged in the dough mixing barrel, the dough mixing knife 2 includes a connecting portion 21 and a stirring section 22 fixed to the connecting portion 21, and the projection of the dough mixing knife 2 as a whole in a cross section along the axis perpendicular to the connecting portion 21 is in the shape of an involute.

[0034] When in use, the dough knife 2 can rotate in the dough barrel 1 to stir and mix the flour. After the flour is formed into a ball, the dough knife 2 can combine with the barrel wall of the dough barrel 1 to repeatedly squeeze the dough 6, quickly complete the dough, and greatly improve the chewiness of the dough 6. The principle of repeatedly squeezing the dough 6 is that the working shape of the dough knife 2 specifically adopts an involute design. When working, it does not only periodically beat the dough 6 like the blade 5 of the traditional design, but continuously kneads the dough 6, that is, it can make the dough 6 rotate along the barrel wall of the dough barrel 1 (the dough 6 revolves), and the dough knife 2 squeezes the dough 6 while making the dough 6 rotate (the dough 6 rotates), which can greatly improve the dough kneading efficiency and the chewiness of the dough 6.

[0035] In order to better express the revolution and autobiography of dough 6, Figure 7 The revolution trajectory L1 and the rotation trajectory L2 are drawn in the figure. Since the working shape of the dough kneading knife 2 specifically adopts an involute design, a force will be applied to the dough 6 during the actual rotation. After the force contacts the dough 6, two component forces will be formed. One component force will drive the dough 6 to revolve, and the other component force will drive the dough 6 to rotate, thereby improving the dough kneading efficiency and the chewiness of the dough 6.

[0036] In an optional embodiment, the projection of the stirring section 22 in the cross section along the axis of the vertical connecting portion 21 may be an arc shape.

[0037] The rotation of the dough kneading knife 2 in an optional embodiment can be specifically driven by the motor 3. For example, the dough kneading machine also includes a motor 3, which is transmission-connected to the connecting portion 21 of the dough kneading knife 2. Therefore, when the dough kneading machine is working, the motor 3 can drive the dough kneading knife 2 to rotate.

[0038] The transmission connection structure between the motor 3 and the connecting part 21 of the noodle knife in an optional embodiment can be specifically a worm gear 31 structure. For example, the output end of the motor 3 is provided with a worm gear 31, and the connecting part 21 of the noodle knife 2 is provided with a turbine 32. The turbine 32 and the worm gear 31 are meshingly connected. Such a configuration can effectively reduce the height of the whole machine and reduce the space occupied by the whole machine to facilitate storage.

[0039] Of course, in other embodiments, the transmission connection structure between the motor 3 and the connecting part 21 of the noodle knife can also be specifically a gear structure. For example, the output end of the motor 3 is provided with a driving gear, and the connecting part 21 of the noodle knife 2 is provided with a driven gear, and the driving gear and the driven gear are meshed.

[0040] The motor 3 and the worm gear 31 structure in an optional embodiment can be specifically arranged in the base 4 of the dough mixer. For example, the dough mixer also includes a base 4, and the motor 3, the worm gear 31 and the turbine 32 are arranged in the base 4, and a transmission shaft 33 is arranged between the turbine 32 and the connecting part 21 of the dough mixer 2.

[0041] In an optional embodiment, the connecting portion 21 may be cylindrical in shape, which has a simple structure, is easy to manufacture, and reduces the difficulty of manufacturing.

[0042] In an optional embodiment, an arc-shaped transition can be made between the stirring section 22 and the connecting portion 21 to avoid excessive flour or dough 6 remaining in the transition area between the stirring section 22 and the connecting portion 21, thereby facilitating the cleaning of the dough knife 2.

[0043] In an optional embodiment, the stirring section 22 can be designed with a structure having a larger area on one side. For example, the end of the stirring section 22 close to the connection portion 21 is the first end, and the end of the stirring section 22 away from the connection portion 21 is the second end. In the axial direction of the connection portion 21, the stirring section 22 is arranged with increasing height from the first end to the second end. In this way, the stirring section 22 can form a structural design with a larger area on one side. Since the dough 6 needs to be kneaded continuously, the dough 6 can be kneaded better by using the larger area side, which can better drive the dough 6 to revolve and rotate.

[0044] The stirring section 22 in an optional embodiment may adopt a structure with a larger area on one side. For example, a transition section 23 is provided between the stirring section 22 and the connecting portion 21. In the axial direction along the connecting portion 21, the height of the transition section 23 is equal to the height of the connecting portion 21, and the height of the stirring section 22 is greater than the height of the transition section 23. This can also utilize the side with a larger area to better knead the dough 6, and can better drive the dough 6 to revolve and rotate.

[0045] In an optional embodiment, the transition point between the transition section 23 and the connecting part 21 can be smoothly arranged. For example, the upper end surface of the transition section 23 and the upper end surface of the connecting part 21 are arranged flush to avoid excessive flour or dough 6 remaining in the transition area between the stirring section 22 and the connecting part 21, so as to facilitate the cleaning of the dough knife 2.

[0046] For another example, the lower end surface of the transition section 23 and the lower end surface of the connecting portion 21 are arranged flush with each other, which can also avoid excessive flour or dough 6 remaining, making it easier to clean the dough knife 2.

[0047] For example, the transition section 23 forms an arc-shaped transition with the connecting portion 21 on both sides facing each other along its thickness direction, which can also avoid excessive flour or dough 6 remaining and facilitate cleaning of the dough knife 2.

[0048] As for the manufacturing process, in an optional embodiment, the connecting portion 21, the transition section 23 and the stirring section 22 can be integrally formed by a molding device, such as injection molding.

[0049] The connecting transition between the stirring section 22 and the transition section 23 can also be smoothly arranged. For example, the two sides of the stirring section 22 facing each other along its own thickness direction and the two sides of the transition section 23 facing each other along its own thickness direction have an arc transition corresponding to each other, which can also avoid excessive flour or dough 6 remaining and facilitate cleaning of the dough knife 2.

[0050] In order to reduce manufacturing costs and save materials, the stirring section 22 is provided with an arc-shaped notch. For example, an upper arc-shaped notch 24 is provided at the upper portion of the stirring section 22. One end of the upper arc-shaped notch 24 close to the transition section 23 is flush with the upper end surface of the transition section 23 to form a notch at the upper portion of the stirring section 22, which not only saves materials but also reduces the wind resistance of rotation.

[0051] For example, a lower arc-shaped notch 25 is provided at the lower portion of the stirring section 22. One end of the lower arc-shaped notch 25 close to the transition section 23 is flush with the lower end surface of the transition section 23 to form a notch at the lower portion of the stirring section 22, which not only saves materials but also reduces the wind resistance of rotation.

[0052] When the dough knife 2 is in specific use, during the movement of the dough 6 in revolution and rotation, the dough 6 will usually contact the middle and lower parts of the dough knife 2, and rarely contact the upper part of the dough knife 2. Therefore, the specific structure of the dough knife 2 can be designed according to the actual contact situation of the dough 6. For example, the arc radius of the upper arc notch 24 of the stirring section 22 is larger than the arc radius of the lower arc notch 25 of the stirring section 22. With this arrangement, the middle and lower parts of the dough knife 2 will have more contact space with the dough 6, which can better drive the dough 6 to revolve and rotate.

[0053] The stirring section 22 in an optional embodiment may also specifically include a conveying section 221 and an extrusion section 222. The conveying section 221 is arranged between the extrusion section 222 and the transition section 23. With this arrangement, the extrusion section 222 of the dough kneading knife 2 will combine with the barrel wall to repeatedly extrude the dough 6, quickly complete the kneading, and greatly improve the elasticity of the dough 6. The conveying section 221 of the dough kneading knife 2 will gradually convey the flour to the balled dough 6, and then extrude it through the extrusion section 222.

[0054] In an optional embodiment, the dough kneading knife 2 further includes a transition section 23, which is disposed between the stirring section 22 and the connecting portion 21; the dough kneading knife 2 further includes a protrusion 26, which is disposed between the connecting portion 21 and the transition section 23. When the dough kneading knife 2 rotates, the stirring section 22 and the protrusion 26 push the dough 6 in sequence. The protrusion 26 can be specifically disposed on the outer side of the inner side wall facing the dough barrel 1.

[0055] Among them, when the dough knife 2 can be used in rotation in the dough barrel 1, after the flour is formed into a ball, in addition to the stirring section 22 being able to push the dough 6, the protrusion 26 can also be specifically combined to push the dough 6 for a second time, so as to better make the dough 6 rotate along the barrel wall of the dough barrel 1 (the dough 6 revolves), and make the dough 6 rotate (the dough 6 rotates on itself), which further greatly improves the dough kneading efficiency and the chewiness of the dough 6.

[0056] The specific secondary pushing principle is that when the dough knife 2 is rotated, the stirring section 22 can first push and contact the dough 6. Since the dough 6 itself is relatively large, has a certain viscosity and a relatively soft texture, the dough 6 will cross the stirring section 22, and then push the dough 6 through the protrusion 26, and then push the dough 6 through the stirring section 22. It can be seen that the stirring section 22 and the protrusion 26 will push the dough 6 back and forth in turn to better realize the revolution and rotation of the dough 6.

[0057] For example, when the dough kneading knife 2 rotates clockwise, the dough 6 will rotate clockwise along the barrel wall of the dough kneading barrel 1, and will also rotate counterclockwise at the same time.

[0058] In an optional embodiment, the protrusion 26 is configured as a right-angle structure.

[0059] Among them, by specifically setting the protrusion 26 as a right-angle structure, the contact area with the dough 6 can be increased to a certain extent, and the dough 6 can be pushed better.

[0060] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A dough mixer, characterized in that: include: Dough mixing bucket (1); A dough kneading knife (2) is arranged in a dough kneading barrel, the dough kneading knife (2) comprising a connecting portion (21) and a stirring section (22) fixed to the connecting portion (21), and the projection of the dough kneading knife (2) as a whole in a cross section along the axis perpendicular to the connecting portion (21) is in the shape of an involute.

2. The dough mixer according to claim 1, characterized in that: The end of the stirring section (22) close to the connecting portion (21) is the first end, and the end of the stirring section (22) away from the connecting portion (21) is the second end. In the axial direction of the connecting portion (21), the height of the stirring section (22) increases gradually from the first end to the second end.

3. The dough mixer according to claim 1, characterized in that: The dough kneading knife (2) further comprises a transition section (23), wherein the transition section (23) is arranged between the stirring section (22) and the connecting portion (21), and along the axial direction of the connecting portion (21), the height of the transition section (23) is equal to the height of the connecting portion (21), and the height of the stirring section (22) is greater than the height of the transition section (23).

4. The dough mixer according to claim 3, characterized in that: The upper end surface of the transition section (23) is flush with the upper end surface of the connecting portion (21), and the lower end surface of the transition section (23) is flush with the lower end surface of the connecting portion (21); The connecting portion (21) may be specifically cylindrical, and both sides of the transition section (23) facing each other along the thickness direction thereof are in an arc-shaped transition with the connecting portion (21).

5. The dough mixer according to claim 3, characterized in that: The two sides of the stirring section (22) facing each other along the thickness direction thereof and the two sides of the transition section (23) facing each other along the thickness direction thereof are in arc transition in a one-to-one correspondence.

6. The dough mixer according to claim 1, characterized in that: An upper arc-shaped notch (24) is provided at the upper portion of the stirring section (22), and an end of the upper arc-shaped notch (24) close to the transition section (23) is arranged flush with the upper end surface of the transition section (23); A lower arc-shaped notch (25) is provided at the lower portion of the stirring section (22), and one end of the lower arc-shaped notch (25) close to the transition section (23) is arranged flush with the lower end surface of the transition section (23).

7. The dough mixer according to claim 6, characterized in that: The arc radius of the upper arc-shaped notch (24) of the stirring section (22) is greater than the arc radius of the lower arc-shaped notch (25) of the stirring section (22).

8. The dough mixer according to any one of claims 1 to 7, characterized in that: The invention also comprises a motor (3), the motor (3) being drivingly connected to the connecting portion (21) of the dough kneading knife (2); a worm (31) is arranged at the output end of the motor (3), the connecting portion (21) of the dough kneading knife (2) is provided with a turbine (32), and the turbine (32) and the worm (31) are meshingly connected.

9. The dough mixer according to claim 8, characterized in that: The invention also comprises a base (4), wherein the motor (3), the worm (31) and the turbine (32) are arranged in the base (4), and a transmission shaft (33) is arranged between the turbine (32) and the connecting part (21) of the dough kneading knife (2).

10. The dough mixer according to claim 3, characterized in that: The stirring section (22) comprises a conveying section (221) and an extrusion section (222), and the conveying section (221) is arranged between the extrusion section (222) and the transition section (23).

11. The dough mixer according to any one of claims 1-2, 6-7, characterized in that: The dough kneading knife (2) further comprises a transition section (23), wherein the transition section (23) is arranged between the stirring section (22) and the connecting portion (21); The dough kneading knife (2) further comprises a protruding portion (26), wherein the protruding portion (26) is arranged between the connecting portion (21) and the transition section (23), and when the dough kneading knife (2) rotates, the stirring section (22) and the protruding portion (26) push the dough in sequence.

12. The dough mixer according to claim 11, characterized in that: The protruding portion (26) is configured as a right-angle structure.

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