Bean pressing wheel, grinding device and coffee bean grinding machine

Abstract

The utility model discloses a bean pressing wheel, a grinding device and a coffee bean grinding machine. And the bean pressing impeller is arranged on the periphery of the rotating main body, bean pressing faces are arranged at the bottom of the bean pressing impeller, and the bean pressing faces are gradually and obliquely arranged upwards in the rotating direction of the rotating main body. By the adoption of the scheme, the bean pressing wheel, the grinding device and the coffee bean grinding machine are provided, coffee beans are stirred through the bean pressing impeller, and meanwhile the coffee beans are pressed downwards through the bean pressing face so that the coffee beans can be better supplied for grinding so as to improve efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of grinding device, and specifically relates to a bean pressing wheel, a grinding device and a coffee bean grinder. BACKGROUND

[0002] Chinese patent number CN202223554138.5 discloses a grinding device of a coffee grinder, which is provided with a bean pulling piece on a grinding knife to stir coffee beans when the bean pulling piece rotates with the grinding knife, thereby preventing the beans from being stuck.

[0003] In addition, coffee beans are prone to splashing during the grinding process, which causes the phenomenon of idling of the cutter head during the splashing process, thereby affecting the grinding efficiency. The existing bean pulling piece only has a circumferential stirring effect on the coffee beans, and therefore has poor effect on solving the problem of low grinding efficiency caused by the splashing of coffee beans. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies of the prior art, the utility model aims to provide a bean pressing wheel, a grinding device and a coffee bean grinder, which can improve the efficiency by stirring the coffee beans through the bean pressing impeller and pressing the coffee beans through the bean pressing surface to supply the coffee beans to the grinder.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A bean pressing wheel comprises a rotating main body and a bean pressing impeller, wherein the bean pressing impeller is arranged on the outer periphery of the rotating main body, the bottom of the bean pressing impeller is provided with a bean pressing surface, and the bean pressing surface is gradually inclined upwards along the rotating direction of the rotating main body.

[0007] The utility model is further provided as follows: the number of the bean pressing impellers is multiple, and each bean pressing impeller is arranged on the outer periphery of the rotating main body in a circumferential arrangement.

[0008] The utility model is further provided as follows: at least one bean pressing impeller and other bean pressing impellers are arranged in a vertical staggered manner.

[0009] The utility model is further provided as follows: each bean pressing impeller is arranged in a gradually upward arrangement along the rotating direction of the rotating main body.

[0010] The utility model further sets up: the quantity of pressure bean vane is at least 2, and / or, each pressure bean vane is arranged at interval, and the pressure bean vane between adjacent is provided with bean interval, and / or, the angle between the inclined direction of pressure bean surface and horizontal plane is alpha 1, 5 ° <= alpha 1 <= 20 °, and / or, the bottom of pressure bean vane is provided with reinforcing rib, and the reinforcing rib will pressure bean vane and rotating main part fixed connection, and / or, each pressure bean surface is projected and is arranged in staggered position along vertical.

[0011] The utility model further sets up: pressure bean vane is located at the top of pressure bean surface and is provided with import surface, and the import surface is gradually inclined and sets up along the rotation direction of rotating main part, and the angle between the inclined direction of pressure bean surface and horizontal plane is alpha 1, and the angle between the inclined direction of import surface and horizontal plane is alpha 2, alpha 1 < alpha 2.

[0012] The utility model further sets up: one end of pressure bean vane is away from rotating main part and is provided with inclined part, and the inclined part is gradually inclined and sets up along the radial direction of rotating main part and is outward.

[0013] The utility model further sets up: the bottom of rotating main part is provided with screw portion, and the spiral direction of the thread of screw portion is gradually inclined and sets up along the rotation direction of rotating main part.

[0014] A kind of grinding device, comprising: cutterhead assembly, the cutterhead assembly includes fixed cutter and moving cutter, grinding cavity is provided in the fixed cutter, and the moving cutter is rotationally arranged in the grinding cavity;The pressure bean wheel of above-mentioned, the pressure bean wheel is set to the top of the moving cutter to rotate with the moving cutter.

[0015] A kind of coffee bean grinder, including above-mentioned grinding device.

[0016] By adopting the above technical scheme, the grinding device configured with the embodiment is rotated and grinded, the rotating main body is driven to rotate clockwise to drive the pressure bean vane to rotate, so that the pressure bean vane is interfered with the coffee beans to stir part of the coffee beans, in addition, part of the coffee beans is interfered with the pressure bean surface when the pressure bean vane rotates, so that the pressure bean surface will generate a downward force on the contacted coffee beans to make the coffee beans in the grinding place more efficiently supplied and grinded to improve the grinding efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0018] Figure 1 The schematic view of the first embodiment of the present application;

[0019] Figure 2 The schematic view of the first embodiment of the present application;

[0020] Figure 3 The front view of the first embodiment of the present application;

[0021] Figure 4 The schematic view of the second embodiment of the present application;

[0022] Figure 5 The schematic view of the third embodiment of the present application;

[0023] Figure 6 The assembly view of the fourth embodiment of the present application;

[0024] Figure 7 The sectional view of the fourth embodiment of the present application;

[0025] Figure 8 The three-dimensional sectional view of the fifth embodiment of the present application.

[0026] Explanation of reference signs:

[0027] 1, rotating main body; 11, threaded part; 2, bean pressing impeller; 21, bean pressing surface; 22, lower bean spacing; 23, leading-in surface; 24, inclined part; 3, reinforcing rib; 4, shell seat; 5, rotating shaft; 51, connecting stud; 6, cutter disc assembly; 61, fixed cutter disc; 62, movable cutter disc; 611, grinding cavity; 7, machine base; 8, output device; 9, feeding barrel. DETAILED DESCRIPTION

[0028] To enable those skilled in the art to better understand this utility model and to more clearly define the scope of protection claimed by this utility model, the present utility model is described in detail below with reference to certain specific embodiments. It should be noted that the following are only some specific embodiments of the present utility model, and the specific and direct descriptions of related structures are merely for the convenience of understanding the present utility model; the specific features do not necessarily or directly limit the scope of implementation of the present utility model. Conventional choices and substitutions made by those skilled in the art under the guidance of the present utility model should all be considered within the scope of protection claimed by this utility model.

[0029] Example 1:

[0030] like Figures 1-3 As shown, this utility model discloses a bean press wheel, comprising:

[0031] The rotating body 1 is a cylindrical shape with its axial direction vertical. During use, the rotating body 1 rotates in the k-direction. In this embodiment, the k-direction is clockwise; in other embodiments, the k-direction can also be counterclockwise.

[0032] There are 3 bean pressing impellers 2. The 3 bean pressing impellers 2 are arranged at equal intervals around the outer periphery of the rotating body 1. Each bean pressing impeller 2 has a bean pressing surface 21 at its bottom. The bean pressing surface 21 is arranged to gradually tilt upward in a clockwise direction.

[0033] Therefore, when the grinding device of this embodiment is rotating, the rotating body 1 is driven to rotate clockwise, which in turn drives the tamping impeller 2 to rotate. This causes the tamping impeller 2 to stir some of the coffee beans when it interferes with them. In addition, some coffee beans interfere with the tamping surface 21 when the tamping impeller 2 rotates. As a result, the tamping surface 21 will generate a downward force on the coffee beans in contact with it, so that the coffee beans at the grinding point can be fed to the grinding point more efficiently through the transmission of force, thereby improving the grinding efficiency.

[0034] Preferably, in this embodiment, each bean pressing impeller 2 is arranged in a clockwise direction, gradually moving upwards.

[0035] Therefore, 1. By setting the tamping impellers 2 at different heights, the coffee beans at different positions can be stirred and pressed, thus optimizing the stirring and pressing effect. 2. The arrangement of the tamping impellers 2 and the tilt direction of the tamping surface 21 are the same, so that after the highest tamping impeller 2 presses the coffee beans through the tamping surface 21, it can be connected to the next tamping impeller 2 for continuous pressing, so that the coffee beans are subjected to more continuous pressing and the grinding effect is optimized.

[0036] In other embodiments, the pressing bean impellers 2 can also be arranged in disorder, partially, or reversely.

[0037] In the embodiment, the lower bean spacing 22 is arranged between the adjacent pressing bean impellers 2, so that the coffee beans above the pressing bean impellers 2 can pass through the lower bean spacing 22 and fall into the space below the pressing bean impellers 2, thereby improving the efficiency of the lower beans. In addition, the projections of the pressing bean surfaces 21 along the vertical direction are arranged in staggered manner, so that the pressing force of the coffee beans on the high pressing bean surface 21 will not act on the low pressing bean impeller 2, thereby preventing ineffective pressing.

[0038] Preferably, the angle between the inclined direction of the pressing bean surface 21 and the horizontal plane is α1, and 5°≤α1≤20°. In the embodiment, α1 is 12°.

[0039] Preferably, the pressing bean impeller 2 in the embodiment is provided with a reinforcing rib 3. The upper side of the reinforcing rib 3 is integrally formed with the bottom of the pressing bean impeller 2, and the side of the reinforcing rib 3 close to the rotating body 1 is integrally formed with the rotating body 1. In this way, the pressing bean impeller 2 has higher connection strength and effectively presses the coffee beans. In addition, the reinforcing rib 3 is arranged below the pressing bean impeller 2, so that the interference of the coffee beans on the pressing bean impeller 2 is smaller, and the coffee beans are more likely to fall into the space below the pressing bean impeller 2 through the lower bean spacing 22, thereby preventing the coffee beans from being stuck on the pressing bean impeller 2.

[0040] In addition, the pressing bean impeller 2 in the embodiment is provided with a guide surface 23 on the top of the pressing bean surface 21. The guide surface 23 is gradually inclined upward in the clockwise direction. The angle between the inclined direction of the guide surface 23 and the horizontal plane is α2, and α1<α2.

[0041] Therefore, the coffee beans on the side of the pressing bean impeller 2 are guided downward to the pressing bean surface 21 through the guide surface 23 with a larger angle, thereby improving the pressing efficiency of the coffee beans.

[0042] In addition, the bottom of the rotating body 1 is provided with a threaded portion 11. The screw direction of the thread of the threaded portion 11 is upward in the clockwise direction.

[0043] Therefore, the rotating body 1 is screwed to the grinding device through the threaded portion 11. When the grinding device rotates, the coffee beans act on the pressing bean surface 21 to generate a reverse force perpendicular to the pressing bean surface 21. The reverse force drives the rotating body 1 to rotate in the counterclockwise direction and move downward, thereby ensuring the stability of the pressing wheel installed on the grinding device.

[0044] In the embodiment, the threaded portion 11 is provided with a threaded hole. In other embodiments, the threaded portion 11 can also be provided with a threaded column.

[0045] In other embodiments, the bean pressing impeller 2 can be configured as a single piece, or as a different number, such as four or five pieces.

[0046] Example 2:

[0047] like Figure 4 As shown, a bean pressing wheel has the same main structure as in Embodiment 1, except that each bean pressing impeller 2 has an inclined portion 24 at the end away from the rotating body 1; the inclined portion 24 is inclined outward along the radial direction of the rotating body 1 and gradually upward.

[0048] By setting an upward-sloping tilting section 24, more pressure can be applied when grinding large coffee beans.

[0049] Example 3:

[0050] like Figure 5 As shown, a bean press wheel has the same main structure as in Embodiment 2, except that the inclined part 24 is arranged to gradually tilt downward along the radial direction of the rotating body 1.

[0051] By setting the downward-sloping tilting part 24, the small coffee beans are restricted to be below the tamping surface 21 when grinding small coffee beans, and the downward pressure is more concentrated.

[0052] Example 4:

[0053] like Figures 6-7 As shown, this utility model discloses a grinding device, comprising:

[0054] The housing 4 has a rotating shaft 5 rotatably mounted on it. The axis of the rotating shaft 5 is vertical. The lower end of the rotating shaft 5 can be equipped with a rotating device to achieve rotation output. The output device 8 can be a motor or the like.

[0055] The cutter head assembly 6 includes a fixed cutter head 61 and a movable cutter head 62. The fixed cutter head 61 is detachably mounted on the housing 4 and is fixed relative to the housing 4. The fixed cutter head 61 has a grinding chamber 611 inside, which has an upwardly flared inverted conical structure. The movable cutter head 62 is fixedly mounted on the rotating shaft 5. The movable cutter head 62 is located inside the grinding chamber 611 and has an upwardly constricted conical structure.

[0056] Therefore, the coffee beans fall into the grinding chamber 611 and are ground at the bottom of the grinding chamber 611 by the action of the moving blade 62 and the fixed blade 61.

[0057] In addition, the top of the moving blade disc 62 is provided with a bean pressing wheel as described in any one of Embodiments 1 to 3.

[0058] Therefore, the pressing wheel can rotate with the cutter head 62, and the coffee beans at the bottom of the grinding cavity 611 are pressed by the pressing surface 21, so that the coffee beans are more efficiently ground under the action of force.

[0059] Specifically, the top of the rotating shaft 5 is provided with a connecting stud 51 with a smaller diameter than the rotating shaft 5, and the pressing wheel is mounted on the rotating shaft 5 by cooperation of the connecting stud 51 and the threaded portion 11.

[0060] Embodiment five:

[0061] As shown in Figure 8 The utility model discloses a coffee bean grinder, including:

[0062] The base 7 is provided with a shell seat 4.

[0063] The grinding device of embodiment four is fixedly arranged on the base 7.

[0064] The output device 8 is a motor, which is arranged in the base 7 and connected to the rotating shaft 5 through an output shaft, so that the rotating shaft 5 can rotate under the action of the output device 8.

[0065] The feeding barrel 9 is arranged on the base 7 and above the shell seat 4.

[0066] The coffee beans can be fed from the feeding barrel 9, move downward to the grinding device and be ground under the action of the output device 8, and finally be discharged in the form of coffee powder.

[0067] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bean pressing wheel, characterized by The application relates to a grinding device, comprising: a rotating main body (1); and, a plurality of bean pressing impellers (2) arranged on the outer periphery of the rotating main body (1), wherein the bottom of each bean pressing impeller (2) is provided with a bean pressing surface (21) which is arranged to be gradually inclined upwards along the rotating direction of the rotating main body (1).

2. The bean pressing wheel according to claim 1, characterized in that: The number of the bean pressing impellers (2) is more than one, and each bean pressing impeller (2) is arranged in a circumferential direction on the outer periphery of the rotating main body (1).

3. The bean press wheel of claim 2, wherein: At least one of the bean pressing impellers (2) is arranged in a vertical direction to be staggered with respect to the other bean pressing impellers (2).

4. The bean press wheel of claim 3, wherein: Each bean pressing impeller (2) is arranged in a vertical direction to be gradually inclined upwards along the rotating direction of the rotating main body (1).

5. A bean pressing wheel according to any one of claims 2-4, characterized in that: The number of the bean pressing impellers (2) is at least two; and / or, Each bean pressing impeller (2) is arranged in a spaced manner, and a bean spacing (22) is arranged between adjacent bean pressing impellers (2); and / or, The angle between the inclined direction of the bean pressing surface (21) and the horizontal plane is alpha 1, and 5 DEG <= alpha 1 <= 20 DEG; and / or, The bottom of each bean pressing impeller (2) is provided with a reinforcing rib (3) which is fixedly connected with the rotating main body (1); and / or, The projection of each bean pressing surface (21) in the vertical direction is arranged to be staggered.

6. The bean pressing wheel according to claim 1, characterized in that: The top of the bean pressing impeller (2) is provided with an inlet surface (23) which is arranged to be gradually inclined upwards along the rotating direction of the rotating main body (1). The angle between the inclined direction of the bean pressing surface (21) and the horizontal plane is alpha 1, and the angle between the inclined direction of the inlet surface (23) and the horizontal plane is alpha 2, alpha 1 < alpha 2.

7. The bean pressing wheel according to claim 1, characterized in that: The end of the bean pressing impeller (2) which is away from the rotating main body (1) is provided with an inclined part (24). The inclined part (24) is arranged to be gradually inclined upwards or downwards along the radial direction of the rotating main body (1).

8. The bean pressing wheel according to claim 1, characterized in that: The bottom of the rotating main body (1) is provided with a threaded part (11), and the spiral direction of the thread of the threaded part (11) is arranged to be gradually inclined upwards along the rotating direction of the rotating main body (1).

9. A polishing apparatus characterized by comprising: The application further relates to a grinding device, comprising: a cutter disc assembly (6) which comprises a fixed cutter disc (61) and a movable cutter disc (62), wherein a grinding cavity (611) is arranged in the fixed cutter disc (61), and the movable cutter disc (62) is arranged to rotate in the grinding cavity (611); the bean pressing wheel of any one of claims 1-8 is arranged on the top of the movable cutter disc (62) to rotate with the movable cutter disc (62).

10. A coffee bean grinder characterized by: The application further relates to a grinding device, comprising the grinding device of claim 9.

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