Coffee bean grinding tool

Abstract

The utility model relates to the technical field of coffee grinding, in particular to a coffee bean grinding cutter which comprises an inner cutter head and an outer ring cutter head arranged outside the inner cutter head in a sleeved mode, a plurality of inner grinding blades are arranged on the outer wall of the inner cutter head in the circumferential direction, and each inner grinding blade is sequentially provided with an inner flat tooth part and an inner sword tooth part from top to bottom. A plurality of outer grinding blades are arranged on the inner wall of the outer ring cutter head in the circumferential direction, each outer grinding blade is sequentially provided with an outer flat tooth part and an outer sword tooth part from top to bottom, the inner flat tooth parts and the outer flat tooth parts jointly form a first-stage grinding area, and the inner sword tooth parts and the outer sword tooth parts jointly form a second-stage grinding area. The tail end of the outer wall of the inner cutter head is further provided with a plurality of powder outlet channels in the circumferential direction. The flat tooth parts at the upper ends of the outer grinding blade and the inner grinding blade form a first-stage grinding area, coffee beans can be preliminarily cut into fine pieces, the problems of bean clamping and powder clamping are avoided, and finished product particles are uniform; and the powder outlet channel is additionally arranged at the lower end of the inner cutter head, so that grinding is smooth, grinding efficiency is improved, and fine powder is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coffee grinding, in particular to a coffee bean grinding tool. Background Art

[0002] The coffee bean grinding cutter is the core component of the coffee grinder. It is a device component used to grind coffee beans into powder. It is usually installed inside an electric or manual grinder. It is driven by mechanical power to rotate the cutter disc, thereby cutting and crushing the coffee beans to produce the required grinding degree. With the popularity of coffee culture around the world, consumers' requirements for coffee quality are increasing day by day.

[0003] However, it was found that the existing grinding tools on the market would get stuck in the grinding process if they encounter larger or harder coffee beans, which would affect the grinding efficiency and accuracy. The coffee beans would also be over-crushed, resulting in too much fine powder and uneven particles in the finished product. Utility Model Content

[0004] In order to solve the problems in the above-mentioned background technology, the utility model provides a coffee bean grinding tool.

[0005] The solution adopted by the utility model to solve its technical problems is: a coffee bean grinding tool, including an inner cutter disc and an outer ring cutter disc mounted outside the inner cutter disc, the outer wall of the inner cutter disc is circumferentially provided with a plurality of inner grinding blades, the inner grinding blades are sequentially provided with inner flat tooth portions and inner saber tooth portions from top to bottom, the inner wall of the outer ring cutter disc is circumferentially provided with a plurality of outer grinding blades, the outer grinding blades are sequentially provided with outer flat tooth portions and outer saber tooth portions from top to bottom, the inner flat tooth portions and the outer flat tooth portions together constitute a primary grinding area for preliminarily chopping coffee beans, the inner saber tooth portions and the outer saber tooth portions together constitute a secondary grinding area for fine grinding, and the tail end of the outer wall of the inner cutter disc is also circumferentially provided with a plurality of powder outlet channels.

[0006] By adopting the above technical solution, the problem of bean and powder sticking can be avoided, the finished product particles can be made uniform, the generation of fine powder can be reduced, and the grinding efficiency can be improved.

[0007] Furthermore, the inner grinding blade and the outer grinding blade are both arranged at an angle and gradually widen from top to bottom.

[0008] By adopting the above technical solution, the driving force of the inclined surface is increased, which helps the coffee beans to pass through the grinding area smoothly and reduces the phenomenon of bean jamming.

[0009] Furthermore, a first powder guiding groove is formed between each of the adjacent inner grinding blades and outer grinding blades, and the first powder guiding groove gradually narrows in an arc shape from top to bottom.

[0010] By adopting the above technical solution, the gradual arc-shaped narrowing can promote the rapid flow of coffee powder as the channel becomes narrower.

[0011] Furthermore, a plurality of second powder guiding grooves are provided on the end surface of the outer saber-tooth portion, and a plurality of third powder guiding grooves are provided on the end surface of the inner saber-tooth portion, and each of the third powder guiding grooves is correspondingly connected to each of the powder outlet channels.

[0012] By adopting the above technical solution, each coffee bean is ground evenly. Each third powder guide groove is connected with each powder outlet channel, which can ensure that the ground coffee powder can be quickly discharged from the grinding chamber, reducing the accumulation inside and causing excessive grinding and excessive fine powder.

[0013] Furthermore, the inner cutter disc is provided with a central hole for connecting to a rotating shaft of the coffee machine, and fixing surfaces for fixing the outer ring cutter disc are symmetrically provided on both sides of the outer wall of the outer ring cutter disc.

[0014] By adopting the above technical solution, the center hole can connect the inner blade disc to the coffee machine.

[0015] In summary, the beneficial effects of the utility model are as follows: the utility model forms a primary grinding area by obliquely arranging inner flat teeth and outer flat teeth in the inner cutter disc and the outer ring cutter disc respectively, so that the coffee beans can be cut on the circumference and quickly chopped, thereby avoiding the situation of beans and powder being stuck, and entering the secondary grinding area with the first powder guide groove for fine grinding. The second powder guide groove and the third powder guide groove can ensure that the coffee powder is ground gradually and evenly, and a powder outlet channel connected to the third powder guide groove is added at the tail end, which can accelerate the discharge of the coffee powder, ensure that the powder in the grinding chamber is not excessively accumulated and caused by over-grinding, and ensure the appropriate fineness of the coffee powder.

[0016] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structural decomposition of this embodiment;

[0018] Figure 2 is a cross-sectional view of this embodiment;

[0019] Figure 3 This is an enlarged schematic diagram of surface A of this embodiment;

[0020] Figure 4 is an overall top view of this embodiment;

[0021] Figure 5 It is a bottom schematic diagram of this embodiment.

[0022] In the figure: 1. inner cutter disc; 2. outer ring cutter disc; 3. inner ground blade; 31. inner flat tooth portion; 32. inner saber-tooth portion; 4. outer ground blade; 41. outer flat tooth portion; 42. outer saber-tooth portion; 5. primary grinding area; 6. secondary grinding area; 7. first powder guide groove; 8. second powder guide groove; 9. third powder guide groove; 10. powder outlet channel; 11. center hole; 12. fixing surface. DETAILED DESCRIPTION

[0023] In order to make the content of the utility model more clearly understood, the utility model is further described below based on specific embodiments in combination with the accompanying drawings.

[0024] It should be noted that the terms "center", "upper", "lower", "front", "back", "left", "right", "inner", "outer" and the like used herein to indicate directions or positional relationships are based on 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 limiting the present invention. Unless otherwise specified, "plurality" means two or more.

[0025] Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood by specific circumstances.

[0026] like Figures 1 to 5 As shown, a coffee bean grinding tool comprises an inner cutter disc 1 and an outer ring cutter disc 2 mounted on the outer side of the inner cutter disc 1, wherein the outer wall of the inner cutter disc 1 of this embodiment is circumferentially provided with a plurality of inner grinding blades 3, the inner grinding blades 3 are sequentially provided with inner flat tooth portions 31 and inner saber tooth portions 32 from top to bottom, and the inner wall of the outer ring cutter disc 2 is circumferentially provided with a plurality of outer grinding blades 4, the outer grinding blades 4 are sequentially provided with outer flat tooth portions 41 and outer saber tooth portions 42 from top to bottom, the inner flat tooth portions 31 and the outer flat tooth portions 41 together constitute a primary grinding area 5 for preliminarily chopping coffee beans, and the inner saber tooth portions 32 and the outer saber tooth portions 42 together constitute a secondary grinding area 6 for fine grinding, and a plurality of powder outlet channels 10 are also circumferentially provided at the rear end of the outer wall of the inner cutter disc 1.

[0027] The inner blade disc 1 of this embodiment is a conical blade disc, and six inner grinding blades 3 are arranged in the circumferential direction of the outer wall, and each inner grinding blade 3 is evenly arranged at equal angles along the outer wall of the inner blade disc 1; and the outer ring blade disc 2 is a hollow cylindrical shape, which is sleeved to the outside of the inner blade disc 1, and sixteen outer grinding blades 4 are evenly arranged at equal angles on its inner wall. In addition, the upper ends of the inner grinding blades 3 and the outer grinding blades 4 are respectively provided with inner flat teeth 31 and outer flat teeth 41 to form a primary grinding area 5. When the coffee beans enter the primary grinding area 5, the flat teeth on both sides can exert shear force on the coffee beans, which can avoid mutual squeezing between the beans and between the beans and the blades, so as to quickly chop the coffee beans into small particles and enter the secondary grinding area 6 composed of the inner saber teeth 32 and the outer saber teeth 42 below. The preliminarily chopped coffee beans enter the secondary grinding area 6 and are finely ground by the inner saber teeth 32 and the outer saber teeth 42 arranged in parallel on both sides. The finished product after fine grinding is discharged from a plurality of powder outlet channels 10 at the rear end of the inner cutter disc 1, so as to avoid excessive grinding resulting in excessive fine powder due to slow discharge efficiency.

[0028] like Figure 1 and Figure 4 As shown, the inner grinding blade 3 and the outer grinding blade 4 of this embodiment are both inclined and gradually widen from top to bottom. The inclined design of the blades not only causes the coffee beans to be subjected to vertical cutting force during the grinding process, but also to a pushing force along the inclined surface, which helps the coffee beans to pass through the grinding area smoothly and reduces the phenomenon of beans being stuck.

[0029] like Figure 1 As shown, in this embodiment, a first powder guide groove 7 is formed between each adjacent inner grinding blade 3 and outer grinding blade 4, and the first powder guide groove 7 gradually narrows in an arc shape from top to bottom. The first powder guide groove 7 facilitates the coffee beans that are initially chopped by the primary grinding area 5 to be guided to the secondary grinding area 6 below to avoid the phenomenon of beans and powder being stuck, and the gradual arc-shaped narrowing can promote the flow of coffee powder as the channel becomes narrower, so as to further accelerate the grinding efficiency.

[0030] like Figure 1 , Figure 3 and Figure 5 As shown, in this embodiment, a plurality of second powder guide grooves 8 are provided on the end surface of the outer saber-tooth portion 42, and a plurality of third powder guide grooves 9 are provided on the end surface of the inner saber-tooth portion 32, and each third powder guide groove 9 is correspondingly connected to each powder outlet channel 10. The second powder guide grooves 8 and the third powder guide grooves 9 can gradually grind the coffee powder into the lower end position, so that each coffee bean is evenly ground. And each third powder guide groove 9 is connected to each powder outlet channel 10, which can ensure that the ground coffee powder can be quickly discharged from the grinding chamber, reducing the accumulation inside and causing excessive grinding and excessive fine powder.

[0031] like Figure 5As shown, as a further supplement, in this embodiment, the inner cutter disc 1 is provided with a central hole 11 for connecting to the rotating shaft of the coffee machine, and fixing surfaces 12 for fixing the outer ring cutter disc 2 are symmetrically provided on both sides of the outer wall of the outer ring cutter disc 2.

[0032] In summary, the beneficial effects of this embodiment are as follows: this embodiment quickly chops coffee beans through the primary grinding area 5 formed by the inner flat tooth portion 31 and the outer flat tooth portion 41, and then finely grinds the coffee beans in the secondary grinding area 6 of the inner saber tooth portion 32 and the outer saber tooth portion 42, thereby achieving an efficient transition from coarse grinding to fine grinding, which not only ensures the grinding speed, but also ensures the uniformity and fineness of the coffee powder. The inclined setting of the inner grinding blade 3 and the outer grinding blade 4 and the arc-shaped narrowing design of the first powder guide groove 7 effectively promote the smooth flow of coffee beans and powder and avoid blockage during the grinding process. The second powder guide groove 8 and the third powder guide groove 9 are set, and the powder outlet channel 10 is set at the tail end to communicate with the third powder guide groove 9, which further promotes the uniform distribution and rapid discharge of coffee powder during the grinding process, ensures that the powder inside the grinding chamber will not be excessively accumulated, reduces excessive grinding caused by accumulation, and maintains the appropriate fineness of the coffee powder.

[0033] The embodiments described above are only preferred implementation modes of the present utility model and cannot be used to limit the protection scope of the present utility model. Any non-substantial changes and modifications made by technicians in this field on the basis of the utility model shall fall within the protection scope of the present utility model.

Claims

1. A coffee bean grinding tool, comprising an inner cutter disc and an outer ring cutter disc mounted outside the inner cutter disc, characterized in that: The outer wall of the inner cutter disc is circumferentially provided with a plurality of inner grinding blades, and the inner grinding blades are provided with inner flat tooth portions and inner saber tooth portions in sequence from top to bottom; the inner wall of the outer ring cutter disc is circumferentially provided with a plurality of outer grinding blades, and the outer grinding blades are provided with outer flat tooth portions and outer saber tooth portions in sequence from top to bottom; the inner flat tooth portions and the outer flat tooth portions together constitute a primary grinding area for preliminary chopping of coffee beans, and the inner saber tooth portions and the outer saber tooth portions together constitute a secondary grinding area for fine grinding; a plurality of powder outlet channels are also circumferentially provided at the rear end of the outer wall of the inner cutter disc.

2. The coffee bean grinding tool according to claim 1, characterized in that: The inner grinding blade and the outer grinding blade are both arranged in an inclined manner and gradually widen from top to bottom.

3. The coffee bean grinding tool according to claim 2, characterized in that: A first powder guiding groove is formed between each of the adjacent inner grinding blades and the outer grinding blades, and the first powder guiding groove gradually narrows in an arc shape from top to bottom.

4. The coffee bean grinding tool according to claim 1, characterized in that: A plurality of second powder guiding grooves are provided on the end surface of the outer saber-tooth portion, and a plurality of third powder guiding grooves are provided on the end surface of the inner saber-tooth portion, and each of the third powder guiding grooves is correspondingly connected to each of the powder outlet channels.

5. The coffee bean grinding tool according to claim 1, characterized in that: The inner cutter disc is provided with a central hole for connecting with the rotating shaft of the coffee machine, and the outer ring cutter disc has symmetrically provided fixing surfaces for fixing the outer ring cutter disc on both sides of the outer wall.

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