Bean grinder structure

Abstract

The utility model discloses a bean grinder structure which comprises a machine shell, a bean grinding cavity is formed in the machine shell, an upper annular cutter head and a lower annular cutter head are arranged in the bean grinding cavity in an up-down spaced mode, a conveying screw is arranged in the bean grinding cavity, and the conveying screw is arranged on the inner side of the upper annular cutter head and the inner side of the lower annular cutter head. The lower annular cutter head and the conveying screw rod are rotationally arranged relative to the bean grinding cavity; the rotating axis of the lower annular cutter head and the rotating axis of the conveying screw are coaxially arranged. According to the bean grinding machine, beans are conveyed to the position between the two cutter heads through the conveying screw rod, so that the bean feeding efficiency of the cutter heads is improved, the bean grinding efficiency is improved, and the powder outlet amount is increased. Compared with the traditional mode that the bean grinding efficiency is improved by increasing the rotating speed of the motor, the bean grinder can effectively reduce noise while ensuring the bean grinding efficiency, and better meets the use requirements.

Description

Technical Field

[0001] The utility model relates to a bean grinder structure. Background Art

[0002] A bean grinder is an electrical appliance for grinding beans. Its operating principle is that the beans fall between two blade discs, and the beans are ground by the rotation of the blade discs. In existing bean grinders, the powder output efficiency of grinding beans depends on the size of the blade disc and the speed of the motor. Simply increasing the size of the blade disc will lead to a larger volume of the entire product and increased costs. If the powder output efficiency is improved by increasing the motor speed, the problem of increased noise will arise. For this reason, there is an urgent need for a bean grinder that can improve the powder output efficiency without increasing the size of the blade disc or the speed of the motor to solve the problems existing in the prior art. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a bean grinder that can improve the powder output efficiency without increasing the size of the blade disc or the speed of the motor.

[0004] A bean grinder structure designed for this purpose includes a housing, a grinding chamber is formed in the housing, an upper annular cutter disc and a lower annular cutter disc are arranged in the grinding chamber at intervals, a conveying screw is arranged in the grinding chamber, the conveying screw is arranged inside the upper annular cutter disc and the lower annular cutter disc, and the lower annular cutter disc and the conveying screw are rotatably arranged relative to the grinding chamber;

[0005] The rotation axis of the lower annular cutter disc and the rotation axis of the conveying screw are coaxially arranged with each other.

[0006] Preferably, a disc body is provided on the conveying screw, and the lower annular cutter disc is fixedly provided on the disc body.

[0007] Preferably, a powder separation space is provided between the disc body and the inner bottom surface of the bean grinding chamber, and the powder separation space is connected to the powder lowering channel;

[0008] The lower end surface of the disc body is provided with a powder-moving convex rib for moving the powder to the powder lowering channel.

[0009] Preferably, a plurality of the powder removing ribs are arranged in a circular array, and the powder removing ribs are arranged in an involute shape.

[0010] Preferably, a driving element is mounted on the housing, a driving shaft of the driving element extends to the bean grinding chamber, and the conveying screw is fixedly mounted on the bean grinding chamber.

[0011] Compared with the prior art, the utility model is provided with a conveying screw in the bean grinding chamber, the conveying screw is arranged inside the upper annular cutter disc and the lower annular cutter disc, the lower annular cutter disc and the conveying screw are rotatably arranged relative to the bean grinding chamber, and the rotation axis of the lower annular cutter disc and the rotation axis of the conveying screw are coaxially arranged. The utility model conveys beans between the two cutter discs through the conveying screw to improve the bean feeding efficiency of the cutter discs, thereby improving the bean grinding efficiency and thus increasing the powder output. Compared with the traditional method of improving the bean grinding efficiency by increasing the motor speed, the utility model can effectively reduce noise while ensuring the bean grinding efficiency, which is more in line with the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the grinder;

[0013] Figure 2 This is one of the cross-sectional structural diagrams of the grinder;

[0014] Figure 3 This is the second schematic diagram of the cross-sectional structure of the grinder;

[0015] Figure 4 This is one of the three-dimensional structural schematic diagrams of the conveying screw;

[0016] Figure 5 This is the second schematic diagram of the three-dimensional structure of the conveying screw. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0018] See also Figure 1-Figure 5 A bean grinder structure includes a housing 10, wherein a grinding chamber 110 is formed in the housing 10, wherein an upper annular cutter disc 210 and a lower annular cutter disc 220 are arranged at intervals in the upper and lower parts of the grinding chamber 110, wherein a conveying screw 30 is arranged in the grinding chamber 110, wherein the conveying screw 30 is arranged inside the upper annular cutter disc 210 and the lower annular cutter disc 220, wherein the lower annular cutter disc 220 and the conveying screw 30 are arranged to rotate relative to the grinding chamber 110; wherein the rotation axis of the lower annular cutter disc 220 and the rotation axis of the conveying screw 30 are arranged coaxially with each other. The utility model conveys beans to between two cutter discs through a conveying screw, thereby improving the bean feeding efficiency of the cutter discs, thereby improving the bean grinding efficiency, and thus improving the powder output. Compared with the traditional method of improving the bean grinding efficiency by increasing the motor speed, the utility model can effectively reduce noise while ensuring the bean grinding efficiency, and is more in line with the use requirements.

[0019] During the rotation of the conveying screw 30 , it can drive the disc body 310 to rotate together, thereby driving the lower annular cutter disc 220 to rotate relative to the upper annular cutter disc 210 to achieve grinding.

[0020] See also Figure 4 The conveying screw 30 is provided with a disc body 310 , and the lower annular cutter disc 220 is fixedly provided on the disc body 310 .

[0021] Furthermore, the disc body 310 and the conveying screw 30 are an integrated structure.

[0022] Furthermore, the lower annular cutter disc 220 is fixed to the disc body 310 by bolts.

[0023] See also Figure 2 A powder-moving space 120 is provided between the disk body 310 and the inner bottom surface of the grinding chamber 110, and the powder-moving space 120 is connected to the powder lowering channel 100; a powder-moving convex rib 320 for moving powder to the powder lowering channel 100 is provided on the lower end surface of the disk body 310. During the rotation of the conveying screw 30, it can drive the disk body 310 to rotate together. During the rotation of the disk body 310, the powder is moved outward through the powder-moving convex rib 320, so that the powder enters the powder lowering channel 100 located on the outside.

[0024] See also Figure 5 The powder-prying ribs 320 are arranged in a plurality of circular arrays, and the powder-prying ribs 320 are arranged in an involute shape.

[0025] See also Figure 2 A driving element 40 is installed on the housing 10 , a driving shaft 410 of the driving element 40 extends to the bean grinding chamber 110 , and the conveying screw 30 is fixedly installed on the bean grinding chamber 110 .

[0026] Furthermore, the driving element 40 is a motor, and the driving shaft 410 is connected to the conveying screw 30 by threads.

[0027] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating the orientation or position relationship are based on the orientation or position relationship 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and the description are only to illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A bean grinder structure, comprising a housing (10), wherein a grinding chamber (110) is formed in the housing (10), wherein an upper annular blade disc (210) and a lower annular blade disc (220) are arranged in the grinding chamber (110) at intervals from top to bottom, characterized in that: A conveying screw (30) is arranged in the bean grinding chamber (110), and the conveying screw (30) is arranged inside the upper annular blade disc (210) and the lower annular blade disc (220), and the lower annular blade disc (220) and the conveying screw (30) are rotatably arranged relative to the bean grinding chamber (110); The rotation axis of the lower annular cutter disc (220) and the rotation axis of the conveying screw (30) are coaxially arranged with each other.

2. A bean grinder structure according to claim 1, characterized in that: A disc body (310) is arranged on the conveying screw rod (30), and the lower annular cutter disc (220) is fixedly arranged on the disc body (310).

3. A bean grinder structure according to claim 2, characterized in that: A powder separation space (120) is provided between the disk body (310) and the inner bottom surface of the bean grinding chamber (110), and the powder separation space (120) is connected to the powder discharge channel (100); The lower end surface of the disk body (310) is provided with a powder-moving convex rib (320) for moving powder materials to the powder lowering channel (100).

4. A bean grinder structure according to claim 3, characterized in that: The powder-pumping convex ribs (320) are arranged in a plurality in a circular array, and the powder-pumping convex ribs (320) are arranged in an involute shape.

5. The bean grinder structure according to claim 1, characterized in that: A driving element (40) is mounted on the housing (10); a driving shaft (410) of the driving element (40) extends to the bean grinding chamber (110); and the conveying screw (30) is fixedly mounted on the bean grinding chamber (110).

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