Grinding core having multi-stage grinding structure
By designing a multi-grinding structure on the grinder's wick and utilizing a combination of multiple bean guide grooves and grinding teeth, the problem of poor single-grinding effect in existing grinders is solved, enabling multiple grinding and improving the shape diversity and flavor of coffee particles.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- XIAMEN TIMER TECHNOLOGY CO LTD
- Filing Date
- 2025-02-10
- Publication Date
- 2026-06-25
AI Technical Summary
Existing coffee grinders only grind once, resulting in poor grinding quality and difficulty in meeting the diverse needs for coffee particle shapes.
Design a grinding core with a multi-grinding structure. By setting multiple sets of bean guide grooves and grinding teeth on the female grinding core and the male grinding core, multiple grinding processes can be achieved. The relative rotation between the male grinding core and the female grinding core enables multiple grinding processes.
It enables multiple grinding processes, enhancing the shape diversity and flavor of coffee particles, and improving grinding efficiency and effectiveness.
Smart Images
Figure CN2025076626_25062026_PF_FP_ABST
Abstract
Description
A grinding core with a multi-grinding structure Technical Field
[0001] This utility model relates to the field of coffee grinder technology, specifically a grinding core with a multi-grinding structure. Background Technology
[0002] Currently, existing coffee grinders mainly consist of a female grinder and a male grinder. The male grinder is cylindrical in shape and has bean guide grooves and grinding teeth arranged from top to bottom. The female grinder has a conical hole that matches the male grinder, and similarly, the inner wall of the female grinder has bean guide grooves and grinding teeth arranged from top to bottom to match the male grinder. The female and male grinders rotate relative to each other, and coffee beans pass through the gap between the female and male grinders from top to bottom to complete the grinding. However, this method only grinds once, resulting in poor grinding effect. Utility Model Content
[0003] The purpose of this invention is to solve the problems existing in the prior art and provide a grinding core with a multi-grinding structure, which can achieve multiple grinding on a set of grinding cores, thereby improving grinding efficiency and grinding effect.
[0004] To achieve the above objectives, this utility model employs the following technical solution:
[0005] A grinding core with a multi-grinding structure includes a female grinding core and a male grinding core. Several sets of male grinding groups are arranged sequentially from top to bottom on the outer wall of the male grinding core. Each male grinding group includes a male bean guide groove and a male grinding bean tooth arranged sequentially from top to bottom. Several sets of female grinding groups adapted to the male grinding groups are arranged sequentially from top to bottom on the inner wall of the female grinding core. Each female grinding group includes a female bean guide groove and a female grinding bean tooth arranged sequentially from top to bottom.
[0006] Preferably, the shapes of the male grinding teeth in different male grinding groups are different, and the shapes of the female grinding teeth in different female grinding groups are different.
[0007] Preferably, the male guide groove is a plurality of first inclined grooves arranged along the circumference of the male grinding core, and the female guide groove is a plurality of second inclined grooves evenly arranged along the circumference of the inner wall of the female grinding core.
[0008] Preferably, the male grinding teeth are a plurality of first oblique teeth arranged circumferentially along the male grinding core, and the female grinding teeth are a plurality of second oblique teeth evenly arranged circumferentially along the inner wall of the female grinding core.
[0009] Preferably, the number of male grinding groups is two or three, and the number of female grinding groups is the same as the number of male grinding groups.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] This invention enables multiple grinding operations on a single grinding core. The coffee particles produced by multiple grinding operations have a richer shape distribution, which is beneficial to enhancing the coffee flavor and improving grinding efficiency and effect. Attached Figure Description
[0012] Figure 1 is a structural schematic diagram of this utility model;
[0013] Figure 2 is a schematic diagram of the structure of the mother grinding core of this utility model;
[0014] Figure 3 is a schematic diagram of the three-stage grinding structure of this utility model;
[0015] Figure 4 is a schematic diagram of the secondary grinding structure of this utility model;
[0016] Figure 5 is a schematic diagram of a traditional grinding core structure;
[0017] Figure 6 is a schematic diagram of a traditional one-time grinding structure.
[0018] The labels in the attached diagram are as follows: 1. Female grinding core; 11. Female bean guide groove; 12. Female grinding bean teeth; 2. Male grinding core; 21. Male bean guide groove; 22. Male grinding bean teeth. Detailed Implementation
[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0020] Example: As shown in Figures 1-4, the present invention describes a grinding core with a multi-grinding structure, including a female grinding core 1 and a male grinding core 2. The male grinding core 2 is roughly frustum-shaped. The female grinding core 1 is provided with a conical hole adapted to the male grinding core 2. The male grinding core 2 is inserted into the female grinding core 1 from bottom to top, and a gap is left between the inner wall of the female grinding core 1 and the outer wall of the male grinding core 2.
[0021] Several sets of grinding groups are arranged sequentially from top to bottom on the outer wall of the grinding core 2. The grinding group includes a grinding guide groove 21 and a grinding teeth 22 arranged sequentially from top to bottom. The grinding guide groove 21 is a number of first inclined grooves evenly arranged along the circumference of the grinding core 2. The grinding teeth 22 is a number of first inclined teeth evenly arranged along the circumference of the grinding core 2.
[0022] On the inner wall of the female grinding core 1, several sets of female grinding groups adapted to the male grinding groups are arranged sequentially from top to bottom. The number of female grinding groups is the same as the number of male grinding groups. The female grinding group includes female bean guide grooves 11 and female grinding teeth 12 arranged sequentially from top to bottom. The female bean guide grooves 11 are several second inclined grooves evenly arranged along the circumference of the inner wall of the female grinding core 1. The female grinding teeth 12 are several second inclined teeth evenly arranged along the circumference of the inner wall of the female grinding core 1.
[0023] Preferably, the shapes of the male grinding teeth 22 in different male grinding groups are different, and the shapes of the female grinding teeth 12 in different female grinding groups are different.
[0024] Preferably, the number of male grinding groups is two or three, and the number of female grinding groups is the same as the number of male grinding groups.
[0025] Working principle:
[0026] Figure 6 is a schematic diagram of a traditional single-stage grinding structure, Figure 4 is a schematic diagram of a two-stage grinding structure of the present invention, and Figure 3 is a schematic diagram of a three-stage grinding structure of the present invention; M is the bean guiding area, N is the grinding area, and the number represents the number of times. The female bean guiding groove 11 and the male bean guiding groove 21 are located in the bean guiding area, and the female grinding teeth 12 and the male grinding teeth 22 are located in the grinding area.
[0027] In Figure 6, M1 is the bean guiding zone and N1 is the grinding zone. This process completes one grinding cycle.
[0028] The complexity of coffee particle shape can be achieved by increasing the number of bean guide zones and grinding zones, i.e., increasing the number of female and male grinding groups, to complete multiple grinding processes.
[0029] In Figure 4, the female bean guide groove 11 and the male bean guide groove 21 form the bean guiding area, and the female grinding teeth 12 and the male grinding teeth 22 form the grinding area. When the coffee bean enters the gap between the female grinding core 1 and the male grinding core 2, the coffee bean enters the first grinding area through the first bean guiding area for the first grinding, and then enters the second grinding area through the second bean guiding area for the second grinding.
[0030] The specific grinding process is as follows:
[0031] The coffee beans are first ground in the (M1) to (N1) area, which coarsely cuts the coffee beans into large flake-shaped particles. After the particles reach the (M2) area, they enter the (N2) area for a second grinding... and so on for a third (multiple) grinding.
[0032] The shapes of the grinding teeth (fine teeth) in the (N1), (N2), (N3)... areas are all different, so that the coffee particles ground in this way have a flake or block effect. This combination can be arranged and changed according to actual requirements.
[0033] A single-grind coffee maker produces coffee particles with a relatively uniform shape (a single flake or a single block), unlike a multi-grind design which can produce coffee particles with multiple shapes such as flakes, blocks, and triangles. Multi-grind coffee makers produce a more diverse distribution of coffee particle shapes, which is beneficial for enhancing the coffee's flavor, while single-grind coffee makers produce relatively uniform particles with a less complex flavor profile.
Claims
1. A grinding core with a multi-grinding structure, comprising a female grinding core (1) and a male grinding core (2), characterized in that: On the outer wall of the male grinding core (2), a number of male grinding groups are arranged from top to bottom. The male grinding groups include male bean guide grooves (21) and male grinding teeth (22) arranged from top to bottom. On the inner wall of the female grinding core (1), a number of female grinding groups adapted to the male grinding groups are arranged from top to bottom. The female grinding groups include female bean guide grooves (11) and female grinding teeth (12) arranged from top to bottom.
2. A grinding core with a multi-grinding structure according to claim 1, characterized in that: The shapes of the male grinding teeth (22) in different male grinding groups are different, and the shapes of the female grinding teeth (12) in different female grinding groups are different.
3. A grinding core with a multi-grinding structure according to claim 1, characterized in that: The male guide groove (21) is a number of first inclined grooves arranged along the circumference of the male grinding core (2), and the female guide groove (11) is a number of second inclined grooves evenly arranged along the circumference of the inner wall of the female grinding core (1).
4. A grinding core with a multi-grinding structure according to claim 1, characterized in that: The male grinding bean teeth (22) are a number of first oblique teeth arranged along the circumference of the male grinding core (2), and the female grinding bean teeth (12) are a number of second oblique teeth evenly arranged along the circumference of the inner wall of the female grinding core (1).
5. A grinding core with a multi-grinding structure according to claim 1, characterized in that: The number of male grinding groups is two or three, and the number of female grinding groups is the same as the number of male grinding groups.