Grinder head assembly

Abstract

The utility model discloses a grinding head assembly for grinder, it includes female grinding head and install in female grinding head male grinding head, the inner wall of female grinding head's feed end is equipped with a plurality of first inner grinding tooth of inclined shape, and first inner grinding tooth has big tooth surface and small tooth surface and the inclined tooth tip part between big tooth surface and small tooth surface, the inner wall of female grinding head's discharge end is equipped with a plurality of second inner grinding tooth of inclined shape and interval distribution, and the tooth tip of last second inner grinding tooth and the inclined tooth tip part of first inner grinding tooth butt joint, the tooth tip of next second inner grinding tooth and big tooth surface of first inner grinding tooth butt joint, and tooth tip still protrudes from big tooth surface, it is more convenient to guide material to material, and increase grinding position, so that can obtain better and more delicate grinding effect, can be applicable to small granule oily spice grinding, and can realize quick powder, not caking, three major core functions of fine grinding, improve grinding efficiency.

Description

Technical fields:

[0001] This utility model relates to the technical field of grinding products, and specifically to a grinding head assembly for a grinding machine. Background technology:

[0002] In daily life, seasonings such as pepper, Sichuan peppercorns, and coarse salt are originally in the form of blocks or granules. However, many dishes often taste better when using powdered seasonings. Therefore, there are ready-made powdered seasonings available on the market for people to buy and use directly. Although they are very convenient to use, powdered seasonings have a short shelf life, are susceptible to moisture, are prone to clumping, and their flavor is easily lost, affecting the taste. Therefore, with the continuous development of industrial technology, various types of grinders have emerged. Grinders allow people to grind seasonings in their original form into powder in real time while cooking, thus preserving the best flavor of the seasonings and enhancing people's enjoyment of the meal.

[0003] Chinese utility model patent application number 202120741192.7 discloses a grinding core, which includes a male grinding head and a female grinding head. The male grinding head is rotatably fitted inside the female grinding head. The outer peripheral wall of the male grinding head is provided with a second grinding tooth with multiple spiral teeth. The inner peripheral wall of the female grinding head is provided with a first grinding tooth with multiple spiral teeth. After the male grinding head is rotatably fitted into the female grinding head, multiple discharge ports are formed at the discharge end, and the size of one side of the discharge port is larger than the size of the other side. The cross-section of the first grinding tooth is a triangular structure, the length of the first tooth side of the triangle is greater than the length of the second tooth side of the triangle, and the length of the first tooth side is twice or more the total tooth height. Compared with the prior art, because the size of one side of the discharge port is larger than the size of the other side, the oily small particles are squeezed and ground on the smaller side and then carried to the larger side and fall off. This makes the oily small particles flattened and ground, which is suitable for grinding oily small particles, and has the characteristics of better grinding effect and better stability in use.

[0004] However, in actual use, there is a first technical problem: because the first grinding tooth in the female grinding head is a beveled tooth, and its tooth edge extends to the upper and lower ends of the female grinding head, and the distance is also large, it cannot work well with the second grinding tooth of the male grinding head to grind oily small particles (such as sesame seeds), resulting in uneven particle size of the ground product, which cannot meet the requirements of high-quality products (such as sesame crushed / powdered sesame seeds).

[0005] In addition, there is a second technical problem: because the lower end of the second grinding tooth on the outer peripheral wall of the male grinding head does not extend directly to the lower end face of the male grinding head (i.e., the discharge end), a columnar section is formed between the lower end of the second grinding tooth and the lower end face of the male grinding head. The outer surface of this columnar section protrudes from the groove between the two adjacent second grinding teeth. This causes the smooth flow of the crushed particles after grinding to be affected when the male and female grinding heads rotate relative to each other to grind oily small particles (such as sesame seeds). This can lead to adhesion and blockage, requiring frequent shutdowns for cleaning. It also results in low grinding efficiency, uneven particle size in the finished product, and an inability to meet the requirements for high-quality products (such as sesame crushed / powdered sesame seeds).

[0006] In view of the above, the inventors propose the following technical solution. Utility Model Content:

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a grinding head assembly for a grinder.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: the grinding head assembly for the grinder includes a female grinding head and a male grinding head installed inside the female grinding head. The inner wall of the feed end of the female grinding head is provided with a plurality of inclined first internal grinding teeth. The first internal grinding teeth have a large tooth surface and a small tooth surface, and an inclined tooth tip located between the large tooth surface and the small tooth surface. The inner wall of the discharge end of the female grinding head is provided with a plurality of inclined and spaced second internal grinding teeth. A material channel is formed between two adjacent second internal grinding teeth. The tooth tip of the previous second internal grinding tooth is connected to the inclined tooth tip of the first internal grinding tooth, and the tooth tip of the next second internal grinding tooth is connected to the large tooth surface of the first internal grinding tooth, and the tooth tip also protrudes beyond the large tooth surface.

[0009] Furthermore, in the above technical solution, the tilt angle of the tilted tip of the first internal grinding tooth is smaller than the tilt angle of the tip of the second internal grinding tooth, so that the angle formed between the tilted tip and the tooth tip is greater than 0°.

[0010] Furthermore, in the above technical solution, the tip of the second internal grinding tooth is provided with an inner tooth surface and an outer tooth surface on both sides. The inner tooth surface of the previous second internal grinding tooth and the outer tooth surface of the next second internal grinding tooth are separated to form the material channel. Each material channel is in contact with the large tooth surface.

[0011] Furthermore, in the above technical solution, the inner tooth surface of the second internal grinding tooth, which is in contact with the large tooth surface of the first internal grinding tooth, is in contact with the small tooth surface, and the outer tooth surface is in contact with the large tooth surface.

[0012] Furthermore, in the above technical solution, both the large tooth surface and the small tooth surface are twisted inclined surfaces.

[0013] Furthermore, in the above technical solution, the width of the small tooth surface in the first internal grinding tooth gradually decreases downward along the upper end of the discharge end, and the width of the front end of the small tooth surface is less than or equal to 1.3mm, so that the tooth depth of the inclined tooth tip is less than or equal to 1.3mm; the inclination angle of the inclined tooth tip in the first internal grinding tooth is 60°±5°.

[0014] Furthermore, in the above technical solution, the tooth depth of the tip of the second internal grinding tooth is 0.8-1.3mm, and the inclination angle is 35°±10°.

[0015] Furthermore, in the above technical solution, the outer side of the female grinding head is provided with a plurality of longitudinally distributed positioning ribs for positioning and assembly with the inside of the grinder, and the lower end of the female grinding head is also formed with an outwardly protruding annular limiting boss; the inner wall of the feed end of the female grinding head has an angle of 0-20° with the axis; the inner wall of the discharge end of the female grinding head has an angle of 0-20° with the axis.

[0016] Furthermore, in the above technical solution, the upper periphery of the male grinding head is provided with a plurality of first helical teeth corresponding to the first internal grinding teeth, and a first helical groove is formed between two adjacent first helical teeth; the lower periphery of the male grinding head is provided with a plurality of helical fine teeth corresponding to the second internal grinding teeth, the lower end of the helical fine teeth extends to the lower end face of the male grinding head, and the first groove formed between two helical fine teeth penetrates the lower end face of the male grinding head.

[0017] Furthermore, in the above technical solution, the spiral direction of the first spiral tooth is opposite to the inclination direction of the first internal grinding tooth; the spiral direction of the spiral fine tooth is opposite to the inclination direction of the second internal grinding tooth; wherein, the first spiral groove is arc-shaped and its depth is 1-3mm; the spiral fine tooth has a 50° inclination and a tooth depth of 0.7-1.3mm.

[0018] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention is provided with a special structured female grinding head, which not only increases the number and density of the second inner grinding teeth, but also allows the large tooth surface of the first inner grinding teeth to cooperate with the male grinding head to achieve coarse grinding, and the second inner grinding teeth to cooperate with the male grinding head to achieve fine grinding. Furthermore, the tips of some of the second inner grinding teeth are in contact with the large tooth surface of the first inner grinding teeth and protrude beyond the large tooth surface, which makes it easier to guide the material and increases the grinding area, so as to obtain a better and finer grinding effect. It can be applied to the grinding of small-particle oily spices and can achieve the three core functions of rapid powder output, no clumping, and fine grinding, thereby improving grinding efficiency. Attached image description:

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a perspective view of the present invention from another angle;

[0021] Figure 3 This is an exploded view of this utility model;

[0022] Figure 4 This is a first-view sectional view of the female grinding head in this utility model;

[0023] Figure 5 This is a cross-sectional view of the female grinding head from a second perspective in this utility model;

[0024] Figure 6 This is a cross-sectional view of the mother grinding head from the third perspective in this utility model. Detailed implementation method:

[0025] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0026] See Figure 1-6 As shown, a grinding head assembly for a grinder includes a female grinding head 1 and a male grinding head 2 installed inside the female grinding head 1. The male grinding head 2 rotates relative to the female grinding head 1 and can grind and crush objects in the gap between the male grinding head 2 and the female grinding head 1 to meet the usage requirements. This is the function of a grinding head assembly for a conventional grinder.

[0027] This invention can be applied to grinding small-particle oily spices, such as sesame seeds, cloves, fennel, Sichuan pepper, black pepper, flax seeds, sea salt, fennel, red yeast rice, etc., achieving three core functions: rapid powder production, non-sticking, and fine grinding, while reducing material costs and improving grinding efficiency. To address this, the present invention provides a specially structured female grinding head 1: the inner wall of the feed end 101 of the female grinding head 1 is provided with a plurality of inclined first internal grinding teeth 11, each first internal grinding tooth 11 having a large tooth surface 112 and a small tooth surface 113, and an inclined tooth tip 111 located between the large tooth surface 112 and the small tooth surface 113; the inner wall of the discharge end 102 of the female grinding head 1 is provided with a plurality of inclined and spaced second internal grinding teeth 12, with a material channel 120 formed between adjacent second internal grinding teeth 12, wherein the tooth tip 121 of the previous second internal grinding tooth 12 aligns with the inclined tooth tip 111 of the first internal grinding tooth 11, and the tooth tip 121 of the next second internal grinding tooth 12 aligns with the large tooth surface 112 of the first internal grinding tooth 11, and the tooth tip 121 also protrudes beyond the large tooth surface 112. This structure of the female grinding head 1 allows it to work with the male grinding head 2 to achieve a finer grinding effect. In particular, the design of the second internal grinding tooth 12 is such that the tip 121 of the previous second internal grinding tooth 12 connects with the inclined tip 111 of the first internal grinding tooth 11, and the tip 121 of the next second internal grinding tooth 12 connects with the large tooth surface 112 of the first internal grinding tooth 11. This not only increases the number and density of the second internal grinding teeth 12, but also allows the large tooth surface 112 of the first internal grinding tooth 11 to perform coarse grinding with the male grinding head 2, and the second internal grinding tooth 12 to perform fine grinding with the male grinding head 2. Furthermore, the tips 121 of some second internal grinding teeth 12 connect with the large tooth surface 112 of the first internal grinding tooth 11 and protrude beyond the large tooth surface 112, which makes it easier to guide the material and increases the grinding area, so as to obtain a better and finer grinding effect. It can be used for grinding small-particle oily spices and can achieve the three core functions of rapid powder output, no clumping, and fine grinding, thereby improving grinding efficiency.

[0028] The tilt angle of the inclined tip 111 in the first internal grinding tooth 11 is smaller than the tilt angle of the tip 121 in the second internal grinding tooth 12, so that the angle formed between the inclined tip 111 and the tip 121 is greater than 0°, that is, it forms a bending angle, which makes the grinding stroke of the second internal grinding tooth 12 on the material longer, and it can grind more finely.

[0029] Similarly, the tip 121 of the second internal grinding tooth 12 is provided with an inner tooth surface 122 and an outer tooth surface 123 on both sides. The inner tooth surface 122 of the previous second internal grinding tooth 12 and the outer tooth surface 123 of the next second internal grinding tooth 12 are separated to form the material channel 120. Each material channel 120 is connected to the large tooth surface 112, which can discharge the material after fine grinding by the second internal grinding tooth 12 and the male grinding head 2, thereby achieving a larger powder output and no clumping.

[0030] The inner tooth surface 122 of the second internal grinding tooth 12, which is connected to the large tooth surface 112 of the first internal grinding tooth 11, is connected to the small tooth surface 113, and the outer tooth surface 123 is connected to the large tooth surface 112.

[0031] Both the large tooth surface 112 and the small tooth surface 113 are twisted inclined surfaces, which can better improve the grinding effect.

[0032] The width of the small tooth surface 113 in the first internal grinding tooth 11 gradually decreases downward along the upper end of the discharge end 102, and the width of the front end of the small tooth surface 113 is less than or equal to 1.3mm, so that the tooth depth of the inclined tooth tip 111 is less than or equal to 1.3mm; the inclination angle of the inclined tooth tip 111 in the first internal grinding tooth 11 is 60°±5°. This design of the first internal grinding tooth 11 can improve the grinding efficiency. In particular, the width of the small tooth surface 113 in the first internal grinding tooth 11 gradually decreases downward along the upper end of the discharge end 102, so that the corresponding large tooth surface 112 in the first internal grinding tooth 11 gradually becomes shallower, so that the distance between the large tooth surface 112 and the male grinding head 2 continuously decreases, so as to form a better grinding effect.

[0033] The tooth depth of the tip 121 of the second internal grinding tooth 12 is 0.8-1.3mm, and the inclination angle is 35°±10°. It can not only improve the grinding fineness, but also prevent the whole material from falling directly without grinding.

[0034] The female grinding head 1 is provided with multiple longitudinally distributed positioning ribs 13 for positioning and assembly with the interior of the grinder. The lower end of the female grinding head 1 also has an outwardly protruding annular limiting boss 14. This allows for positioning by the positioning ribs 13 and limiting by the limiting boss 14 during subsequent assembly with the interior of the grinder, resulting in a more stable installation inside the grinder. The angle between the inner wall of the feed end 101 of the female grinding head 1 and the axis is 0-20°. The angle between the inner wall of the discharge end 102 of the female grinding head 1 and the axis is also 0-20°. In this embodiment, the female grinding head... The angle α between the inner wall of the feed end 101 of the female grinding head 1 and the axis is 1°; the angle b between the inner wall of the discharge end 102 of the female grinding head 1 and the axis is 3°. That is to say, the part where the inner wall of the feed end 101 and the inner wall of the discharge end 102 of the female grinding head 1 meet is protruding from the outside to the inside, so as to improve the grinding effect. Of course, in some embodiments, the angle between the inner wall of the feed end 101 of the female grinding head 1 and the axis is 0°; the angle between the inner wall of the discharge end 102 of the female grinding head 1 and the axis is 0°. It can also achieve the grinding effect, but the grinding effect is slightly worse than the design where the angle is not 0°.

[0035] The upper periphery of the male grinding head 2 is provided with a plurality of first helical teeth 21 corresponding to the first internal grinding teeth 11, and a first helical groove 22 is formed between two adjacent first helical teeth 21; the lower periphery of the male grinding head 2 is provided with a plurality of helical fine teeth 23 corresponding to the second internal grinding teeth 12, the lower end of the helical fine teeth 23 extends to the lower end face of the male grinding head 2, and the first groove 24 formed between two helical fine teeth 23 penetrates the lower end face of the male grinding head 2.

[0036] In this invention, the male grinding head 2 uses the upper first spiral tooth 21 to cooperate with the first inner grinding tooth 11 of the female grinding head 1 for coarse grinding (or coarse cutting) and material guiding, so that materials such as sesame seeds can fall more smoothly to the spiral fine teeth 23. Then, the lower spiral fine teeth 23 cooperate with the second inner grinding tooth 12 of the female grinding head 1 for fine grinding. Since the lower end of the spiral fine teeth 23 extends to the lower end face of the male grinding head 2, and the first groove 24 formed between the two spiral fine teeth 23 penetrates the lower end face of the male grinding head 2, the crushed or powdered material formed after the spiral fine teeth 23 cooperate with the female grinding head 1 to grind sesame seeds and other materials can be directly discharged through the first groove 24 into the gap between the male grinding head 2 and the female grinding head 1, ensuring smooth material feeding and preventing adhesion and blockage. This eliminates the need for frequent shutdowns for cleaning, thereby improving grinding efficiency and making the finished product particles more uniform in size, meeting the requirements of high-quality products (such as crushed sesame seeds / powder).

[0037] When the first inner grinding tooth 11 is adapted to the spiral fine tooth 23 to grind materials such as sesame, it can improve the fineness of grinding and make the grinding more uniform. Moreover, the tilting direction of the first inner grinding tooth 11 is opposite to the spiral direction of the spiral fine tooth 23, which can better realize the feeding and achieve the purpose of fast feeding.

[0038] The first spiral groove 22 is arc-shaped with a depth of 1-3mm, which can achieve a better material guiding effect; the spiral fine teeth 23 have a slope of 50° and a tooth depth of 0.7-1.3mm, which can better achieve material cutting and improve the grinding effect.

[0039] In summary, this utility model features a specially structured female grinding head 1: the inner wall of the feed end 101 of the female grinding head 1 is provided with a plurality of inclined first internal grinding teeth 11, each having a large tooth surface 112, a small tooth surface 113, and an inclined tooth tip 111 located between the large tooth surface 112 and the small tooth surface 113; the inner wall of the discharge end 102 of the female grinding head 1 is provided with a plurality of inclined and spaced second internal grinding teeth 12, with a material channel 120 formed between adjacent second internal grinding teeth 12. The tooth tip 121 of the previous second internal grinding tooth 12 aligns with the inclined tooth tip 111 of the first internal grinding tooth 11, and the tooth tip 121 of the next second internal grinding tooth 12 aligns with the large tooth surface 112 of the first internal grinding tooth 11, with the tooth tip 121 also protruding beyond the large tooth surface 112. This structure of the female grinding head 1 allows it to work with the male grinding head 2 to achieve a finer grinding effect. The design of the second internal grinding teeth 12 is particularly noteworthy. The tip 121 of the previous second internal grinding tooth 12 aligns with the inclined tip 111 of the first internal grinding tooth 11, and the tip 121 of the next second internal grinding tooth 12 aligns with the large tooth surface 112 of the first internal grinding tooth 11. This not only increases the number and density of the second internal grinding teeth 12, but also allows the large tooth surface 112 of the first internal grinding tooth 11 to perform coarse grinding with the male grinding head 2, and the second internal grinding tooth 12 to perform fine grinding with the male grinding head 2. Furthermore, the tips 121 of some second internal grinding teeth 12 align with and protrude beyond the large tooth surface 112 of the first internal grinding tooth 11, making it easier to guide the material and increasing the grinding area, thus achieving a better and finer grinding effect. This design is suitable for grinding small-particle oily spices and can achieve the three core functions of rapid powder output, no clumping, and fine grinding, thereby improving grinding efficiency.

[0040] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A grinding head assembly for a grinder, comprising a female grinding head (1) and a male grinding head (2) installed within the female grinding head (1), characterized in that: The inner wall of the feed end (101) of the mother grinding head (1) is provided with a plurality of inclined first internal grinding teeth (11). The first internal grinding teeth (11) have a large tooth surface (112) and a small tooth surface (113) and an inclined tooth tip (111) located between the large tooth surface (112) and the small tooth surface (113). The inner wall of the discharge end (102) of the mother grinding head (1) is provided with a plurality of inclined and spaced second internal grinding teeth (12). A material channel (120) is formed between two adjacent second internal grinding teeth (12). The tip (121) of the previous second internal grinding tooth (12) is connected to the inclined tip (111) of the first internal grinding tooth (11), and the tip (121) of the next second internal grinding tooth (12) is connected to the large tooth surface (112) of the first internal grinding tooth (11), and the tip (121) also protrudes out of the large tooth surface (112).

2. The grinding head assembly for a grinder according to claim 1, characterized in that: The tilt angle of the tilted tip (111) in the first internal grinding tooth (11) is smaller than the tilt angle of the tip (121) in the second internal grinding tooth (12), so that the angle formed between the tilted tip (111) and the tip (121) is greater than 0°.

3. The grinding head assembly for a grinder according to claim 1, characterized in that: The tip (121) of the second internal grinding tooth (12) is provided with an internal tooth surface (122) and an external tooth surface (123) on both sides. The internal tooth surface (122) of the previous second internal grinding tooth (12) and the external tooth surface (123) of the next second internal grinding tooth (12) are separated to form the material channel (120). Each material channel (120) is connected to the large tooth surface (112).

4. The grinding head assembly for a grinder according to claim 3, characterized in that: The inner tooth surface (122) of the second internal grinding tooth (12) is connected to the large tooth surface (112) of the first internal grinding tooth (11), and the small tooth surface (113) is connected to the small tooth surface (113), and the outer tooth surface (123) is connected to the large tooth surface (112).

5. The grinding head assembly for a grinder according to claim 1, characterized in that: Both the large tooth surface (112) and the small tooth surface (113) are twisted inclined surfaces.

6. The grinding head assembly for a grinder according to claim 1, characterized in that: The width of the small tooth surface (113) in the first internal grinding tooth (11) gradually decreases downward along the upper end of the discharge end (102), and the width of the front end of the small tooth surface (113) is less than or equal to 1.3mm, so that the tooth depth of the inclined tooth tip (111) is less than or equal to 1.3mm; the inclination angle of the inclined tooth tip (111) in the first internal grinding tooth (11) is 60°±5°.

7. The grinding head assembly for a grinder according to claim 2, characterized in that: The tooth depth of the tip (121) of the second internal grinding tooth (12) is 0.8-1.3 mm, and the inclination angle is 35°±10°.

8. The grinding head assembly for a grinder according to any one of claims 1-7, characterized in that: The female grinding head (1) is provided with a plurality of longitudinally distributed positioning ribs (13) for positioning and assembly with the inside of the grinder, and the lower end of the female grinding head (1) is also provided with an outwardly protruding annular limiting boss (14); the inner wall of the feed end (101) of the female grinding head (1) has an angle of 0-20° with the axis; the inner wall of the discharge end (102) of the female grinding head (1) has an angle of 0-20° with the axis.

9. The grinding head assembly for a grinder according to any one of claims 1-7, characterized in that: The upper periphery of the male grinding head (2) is provided with a plurality of first helical teeth (21) corresponding to the first internal grinding teeth (11), and a first helical groove (22) is formed between two adjacent first helical teeth (21); the lower periphery of the male grinding head (2) is provided with a plurality of helical fine teeth (23) corresponding to the second internal grinding teeth (12), the lower end of the helical fine teeth (23) extends to the lower end face of the male grinding head (2), and the first groove (24) formed between two helical fine teeth (23) penetrates the lower end face of the male grinding head (2).

10. The grinding head assembly for a grinder according to claim 9, characterized in that: The spiral direction of the first helical tooth (21) is opposite to the inclination direction of the first internal grinding tooth (11); the spiral direction of the helical fine tooth (23) is opposite to the inclination direction of the second internal grinding tooth (12); wherein, the first helical groove (22) is arc-shaped and its depth is 1-3mm; the helical fine tooth (23) has a slope of 50° and a tooth depth of 0.7-1.3mm.

Images