Powder sweeping mechanism, grinding device and coffee bean grinding machine

Abstract

The utility model discloses a powder sweeping mechanism, a grinding device and a coffee bean grinder, which comprises a shell seat, a powder falling cavity is arranged on the shell seat, and a powder outlet is arranged on the peripheral side of the powder falling cavity; the powder sweeping piece is arranged in the powder falling cavity, and the powder sweeping piece rotates relative to the shell base in the first direction; the powder sweeping piece comprises a central part; and the at least one powder sweeping impeller is arranged on the periphery of the central part, the powder sweeping impeller comprises a centrifugal sweeping plate and an outer guide part, the outer guide part is provided with a peripheral side guide surface and / or a top side guide surface, the peripheral side guide surface is inwards close to the central part in the first direction, and the top side guide surface is outwards and downwards inclined in the radial direction of rotation of the powder sweeping part relative to the shell seat. By the adoption of the scheme, coffee powder falling into the powder falling cavity is gathered outwards in the rotating process of the powder sweeping piece through the peripheral side guide face and the top side guide face on the outer guide part, and therefore the gathered coffee powder is more easily thrown out of the powder outlet through the centrifugal sweeping plate in a centrifugal mode so that the powder discharging efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of grinding device, concretely relates to a powder sweeping mechanism, grinding device and coffee bean grinder. BACKGROUND

[0002] Chinese patent number CN202420575615.6 discloses a coffee bean grinding structure, grinder and coffee machine, adopts the cooperation of rotating cutter head and grinding disc to realize the grinding of coffee beans into coffee powder, the ground coffee powder falls into the cavity below the cutter head, and is swept out from the peripheral discharge port by the coffee powder under the action of the rotating powder sweeper to realize the powder discharge.

[0003] Among them, the powder sweeper adopts the setting of multiple sweeping plates on the outer periphery of the rotating disc, the sweeping plate is inclined outward away from the rotating disc along the opposite direction of the rotating direction of the rotating disc, so that the sweeping plate has the effect of centrifugal throwing of the circumferential coffee powder of the rotating disc in the rotating process.

[0004] The existing powder sweeper has the following deficiencies: because the circumferential coverage of the sweeping plate is small, the falling coffee powder needs to contact the sweeping plate and be swept outward only when the sweeping plate rotates to the falling position, so the powder sweeping efficiency is low. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model aims to provide a powder sweeping mechanism, grinding device and coffee bean grinder, which can gather the coffee powder falling into the powder falling cavity outward in the rotating process of the powder sweeping piece through the peripheral guide surface and the top guide surface on the outer guide part, so that the centrifugal sweeping plate can more easily centrifugally throw the gathered coffee powder from the powder discharge port to improve the powder discharge efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A powder sweeping mechanism, comprising: a shell seat, the shell seat is provided with a powder falling cavity, the peripheral side of the powder falling cavity is provided with a powder discharge port; and a powder sweeping piece, the powder sweeping piece is arranged in the powder falling cavity, and the powder sweeping piece rotates along a first direction relative to the shell seat to sweep the powder in the powder falling cavity out of the powder discharge port; the powder sweeping piece comprises: a central part; and at least one sweeping impeller arranged on the outer periphery of the central part, the sweeping impeller comprises a centrifugal sweeping plate and an outer guide part, the outer guide part is provided with a peripheral guide surface and / or a top guide surface, the peripheral guide surface is inclined inward and close to the central part along the first direction, and the top guide surface is inclined downward along the radial direction of the rotation of the powder sweeping piece relative to the shell seat.

[0008] The utility model is further provided as follows: the upper edge of the peripheral guide surface and the outer edge of the top guide surface are arranged in a coincident manner; and / or the top guide surface is inclined downward along the first direction.

[0009] The utility model further sets up: the number of the powder sweeping impeller is many, each the powder sweeping impeller is arranged along the circumferential arrangement of the center part.

[0010] The utility model further sets up: the both ends of each outer guide part are connected with two adjacent powder sweeping plates.

[0011] The utility model further sets up: the shell seat is provided with the powder outlet channel, one end of the powder outlet channel is communicated with the powder outlet and the powder falling cavity, and the extension direction of the powder outlet channel is tangentially arranged with the powder falling cavity.

[0012] The utility model further sets up: the ground shell that shape size adaptation is provided in the powder falling cavity, and the ground shell is used for grounding to eliminate static electricity in the powder falling cavity.

[0013] The utility model further sets up: the bottom of the powder falling cavity is provided with the inclined guide surface, and the inclined guide surface is inclined and arranged along the radial direction of the center part and outward and downward.

[0014] The utility model further sets up: the upper side of the centrifugal sweeping plate is provided with the cleaning gap near the center part, and the cleaning gap is provided with the bristle;And / or, the top of the centrifugal sweeping plate is provided with the back-falling blocking part that projects along the first direction;And / or, the centrifugal sweeping plate is provided with the cleaning surface, and the cleaning surface is inclined and arranged along the first direction and upward.

[0015] A kind of grinding device, comprising: above-mentioned powder sweeping mechanism;Tool disc assembly, the tool disc assembly is set to above the powder falling cavity, so that the powder formed by grinding through the tool disc assembly falls into the powder falling cavity;The tool disc assembly includes fixed tool disc and moving tool disc, the fixed tool disc is provided with grinding cavity, and the moving tool disc is rotationally arranged in the grinding cavity.

[0016] A kind of coffee bean grinder, including above-mentioned grinding device.

[0017] By adopting the above technical scheme, 1, the coffee powder directly falling on the bottom of the powder falling cavity is contacted with the circumferential guide surface in the process of rotating the powder sweeping piece, and the coffee powder is gathered outward under the action of the circumferential guide surface, so that when the centrifugal sweeping plate rotates and contacts the coffee powder, the coffee powder is more concentrated, and the centrifugal sweeping plate is more convenient to rotate through the powder outlet, the coffee powder is centrifugally thrown out, the powder outlet efficiency is improved, 2, the coffee powder falling on the top side guide surface will roll outward under the action of gravity, and finally fall on the bottom of the powder falling cavity, then continue to gather outward under the action of the circumferential guide surface and facilitate the centrifugal sweeping plate to centrifugally throw out. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of 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 the 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.

[0019] Figure 1 Assembly view of the present application embodiment one;

[0020] Figure 2 Sectional view of the present application embodiment one;

[0021] Figure 3 Exploded view of the present application embodiment one;

[0022] Figure 4 Schematic view of the powder sweeping part in the present application embodiment one;

[0023] Figure 5 Sectional view of the present application embodiment one;

[0024] Figure 6 Schematic view of the powder sweeping part in the present application embodiment two;

[0025] Figure 7 Assembly view of the present application embodiment three;

[0026] Figure 8 Sectional view of the present application embodiment three;

[0027] Figure 9 Schematic view of the powder sweeping part in the present application embodiment four.

[0028] Explanation of the reference signs:

[0029] 1, shell base; 11, powder falling cavity; 12, powder outlet; 13, powder outlet channel; 111, inclined guide surface; 2, rotating shaft; 3, powder sweeping part; 31, center part; 32, powder sweeping impeller; 321, centrifugal sweeping plate; 322, outer guide part; 3211, cleaning surface; 3212, back-falling blocking part; 3213, cleaning gap; 3214, brush; 3221, circumferential side guide surface; 3222, top side guide surface; 4, grounding shell; 41, grounding end; 5, cutter disc assembly; 51, fixed cutter disc; 52, movable cutter disc; 53, grinding cavity; 6, machine base; 7, power device; 8, feeding barrel. DETAILED DESCRIPTION

[0030] 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.

[0031] Example 1:

[0032] like Figures 1-5 As shown, this utility model discloses a powder sweeping mechanism, comprising:

[0033] The housing 1 has a powder dispensing chamber 11 with an opening at the top and a powder outlet 12 on the periphery of the powder dispensing chamber 11.

[0034] A rotating shaft 2 is inserted into the powder-falling chamber 11 from below and upwards from the housing 1. The rotating shaft 2 is rotatably mounted to the housing 1 using bearings, allowing it to be connected to the power unit 7 for rotational output.

[0035] The powder sweeping component 3 is disposed in the powder falling chamber 11 and is fixedly connected to the rotating shaft 2 so as to rotate with the rotating shaft 2. The rotating shaft 2 rotates so that the powder sweeping component 3 rotates relative to the housing 1 in the first direction k.

[0036] Therefore, the ground coffee powder falls into the powder drop chamber 11 from above, and the rotating shaft 2 drives the powder sweeping component 3 to rotate, so as to sweep the powder in the powder drop chamber 11 out of the powder outlet 12.

[0037] In this embodiment, the first direction k is clockwise. In other embodiments, it can also be rotated counterclockwise as needed.

[0038] Specifically, component 3 includes:

[0039] The central part 31 is annular so that the rotating shaft 2 is inserted into the inner circumference of the central part 31 to achieve linkage; and,

[0040] Three powder sweeping impellers 32 are arranged circumferentially outside the outer periphery of the central part 31. Specifically, the powder sweeping impeller 32 comprises a centrifugal sweeping plate 321 and an outer guide part 322, the outer guide part 322 is provided with a circumferential guide surface 3221 and / or a top guide surface 3222, the circumferential guide surface 3221 is arranged to be close to the central part 31 along the first direction k, and the top guide surface 3222 is arranged to be inclined outward and downward along the rotation direction of the powder sweeping part 3 relative to the shell seat 1.

[0041] Therefore, 1, the coffee powder directly falling on the bottom of the powder falling cavity 11 is first contacted with the circumferential guide surface 3221 during the rotation of the powder sweeping part 3, and the coffee powder is gathered outward under the action of the circumferential guide surface 3221, so that when the centrifugal sweeping plate 321 rotates and contacts the coffee powder, the coffee powder is more concentrated to facilitate the centrifugal sweeping plate 321 to rotate through the powder outlet 12 to centrifugally throw out the coffee powder, thereby improving the powder outlet efficiency, 2, the coffee powder falling on the top guide surface 3222 will roll outward under the action of gravity, and finally fall on the bottom of the powder falling cavity 11, and then continue to gather outward under the action of the circumferential guide surface 3221 to facilitate the centrifugal sweeping plate 321 to centrifugally throw out.

[0042] In other embodiments, the number of powder sweeping impellers 32 can be one or other numbers.

[0043] Among them, the upper edge of the circumferential guide surface 3221 and the outer edge of the top guide surface 3222 are arranged to coincide, and the top guide surface 3222 is arranged to be inclined downward along the first direction k.

[0044] Therefore, the coffee powder falling on the top guide surface 3222 rolls outward under the action of the top guide surface 3222 while rolling along the first direction k to quickly separate from the top guide surface 3222, and then the coffee powder falling on the bottom of the powder falling cavity 11 is directly affected by the circumferential guide surface 3221 to quickly gather outward.

[0045] In other embodiments, the inner edge of the top guide surface 3222 is isometric, and the outer edge of the top guide surface 3222 is isometric.

[0046] Preferably, the two ends of each outer guide part 322 are connected to the two adjacent centrifugal sweeping plates 321, so that the circumferential of the central part 31 is fully covered by each centrifugal sweeping plate 321 and the outer guide part 322, and the powder outlet is optimized.

[0047] Preferably, the bottom of the powder falling cavity 11 is provided with an inclined guide surface 111, and the inclined guide surface 111 is arranged to be inclined outward and downward along the radial direction of the central part 31, so that the coffee powder falling on the inclined guide surface 111 can roll outward under the action of the inclined guide surface 111, which facilitates the gathering of the coffee powder and is easier to sweep, thereby improving the powder outlet efficiency.

[0048] Preferably, the centrifugal sweeping plate 321 is provided with a sweeping surface 3211, which is inclined upward along the first direction k, so that the coffee powder is gathered downward under the action of the sweeping surface 3211, and the coffee powder is prevented from being stirred up in the falling powder chamber 11 to affect the powder discharging efficiency.

[0049] Preferably, the shell seat 1 in the embodiment is provided with a powder discharging channel 13, one end of the powder discharging channel 13 is communicated with the falling powder chamber 11 through the powder discharging port 12, and the extension direction of the powder discharging channel 13 is tangential to the falling powder chamber 11, so that the centrifugal sweeping plate 321 discharges the coffee powder in the same direction as the extension direction of the powder discharging channel 13, and the coffee powder is more smoothly discharged.

[0050] Preferably, the top of the sweeping surface 3211 is provided with a falling back blocking portion 3212 protruding along the first direction k, so that the top of the coffee powder accumulated at the centrifugal sweeping plate 321 is blocked by the falling back blocking portion 3212 and cannot pass through the centrifugal sweeping plate 321, so that the coffee powder is discharged from the powder discharging port 12 under the action of the current centrifugal sweeping plate 321.

[0051] In addition, the falling powder chamber 11 in the embodiment is provided with a grounding shell 4 which is matched in shape and size, and the grounding shell 4 is provided with a grounding end 41, which is grounded during use, so that the grounding shell 4 can eliminate the static electricity generated by the coffee powder in the falling powder chamber 11, and prevent the coffee powder from being adsorbed by static electricity to cause low powder discharging efficiency.

[0052] The shell seat 1 is connected with the grounding shell 4 by plastic packaging, so that the connection strength is more optimal.

[0053] The grounding shell 4 is made of stainless steel.

[0054] Embodiment two:

[0055] As shown in Figure 6 The utility model discloses a kind of powder sweeping mechanism, its main structure is same with embodiment one, difference lies in, centrifugal sweeping plate 321 is provided with sweeping gap 3213 on the upper side close to center part 31, sweeping gap 3213 is provided with bristle 3214, so that bristle 3214 can be cleaned on the coffee powder of the bottom of the cutter head assembly 5 for grinding coffee powder above, so that coffee powder is more easily fallen into falling powder chamber 11.

[0056] Embodiment three:

[0057] As shown in Figures 7-8 The utility model discloses a kind of grinding device, including: the powder sweeping mechanism described in embodiment one or embodiment two;

[0058] The knife disc assembly 5 is arranged above the powder falling cavity 11, so that the coffee powder formed by the grinding of the knife disc assembly 5 falls into the powder falling cavity 11; specifically, the knife disc assembly 5 comprises a fixed knife disc 51 and a movable knife disc 52, the fixed knife disc 51 is provided with a grinding cavity 53, the movable knife disc 52 is rotationally arranged in the grinding cavity 53, and is fixed by being threadedly connected with the rotating shaft 2.

[0059] Therefore, the coffee beans to be ground are arranged in the grinding cavity 53, and the rotating shaft 2 drives the synchronous rotation of the movable knife disc 52 and the powder sweeping part 3, the coffee beans are ground into coffee powder under the extrusion of the movable knife disc 52 and the fixed knife disc 51 and fall downward into the powder falling cavity 11, and the coffee powder is swept out of the powder outlet 12 under the rotation of the powder sweeping part 3.

[0060] Embodiment four:

[0061] As shown in Figure 9 The utility model discloses a coffee bean grinder, which comprises:

[0062] A machine base 6;

[0063] The grinding device of embodiment three is fixedly arranged on the machine base 6;

[0064] A power device 7, specifically, the power device 7 adopts a motor, the power device 7 is arranged in the machine base 6, and the output shaft of the power device 7 is connected with the rotating shaft 2 to drive the rotating shaft 2 to rotate;

[0065] A feeding barrel 8, which is arranged on the machine base 6 and located above the shell base 1.

[0066] So that the coffee beans can be poured from the feeding barrel 8, the coffee beans move downward to the knife disc assembly 5 to be ground under the action of the power device 7, the ground coffee powder falls into the powder falling cavity 11 and is discharged under the action of the powder sweeping part 3.

[0067] The above description of the disclosed embodiments enables a person 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 powder sweeping mechanism, characterized by, The application relates to a powder sweeping mechanism, which comprises: a shell base (1) provided with a powder falling cavity (11), wherein a powder outlet (12) is arranged on the periphery of the powder falling cavity (11); a powder sweeping piece (3) arranged in the powder falling cavity (11), wherein the powder sweeping piece (3) rotates relative to the shell base (1) along a first direction to sweep the powder in the powder falling cavity (11) out of the powder outlet (12); the powder sweeping piece (3) comprises: a central part (31); and at least one powder sweeping impeller (32) arranged on the periphery of the central part (31), wherein the powder sweeping impeller (32) comprises a centrifugal sweeping plate (321) and an outer guide part (322), the outer guide part (322) is provided with a peripheral guide surface (3221) and / or a top guide surface (3222), the peripheral guide surface (3221) is arranged to be close to the central part (31) along the first direction, and the top guide surface (3222) is arranged to be inclined downward along the radial direction of the rotation of the powder sweeping piece (3) relative to the shell base (1). the upper edge of the peripheral guide surface (3221) and the outer edge of the top guide surface (3222) are arranged to be coincident; and / or the top guide surface (3222) is arranged to be inclined downward along the first direction.

2. The powder sweeping mechanism according to claim 1, characterized by: the number of the powder sweeping impellers (32) is plural, and each powder sweeping impeller (32) is arranged along the periphery of the central part (31). the two ends of each outer guide part (322) are connected with two adjacent centrifugal sweeping plates (321) respectively.

3. The powder sweeping mechanism according to claim 1, characterized by: the shell base (1) is provided with a powder outlet channel (13), one end of the powder outlet channel (13) is communicated with the powder falling cavity (11) through the powder outlet (12), and the extension direction of the powder outlet channel (13) is tangential to the powder falling cavity (11).

4. A powder sweeping mechanism according to claim 3, wherein: a grounding shell (4) with a shape and size matched with the powder falling cavity (11) is arranged in the powder falling cavity (11), and the grounding shell (4) is used for grounding to eliminate static electricity in the powder falling cavity (11).

5. The powder sweeping mechanism of claim 1, wherein: an inclined guide surface (111) is arranged on the bottom of the powder falling cavity (11), and the inclined guide surface (111) is arranged to be inclined downward along the radial direction of the central part (31).

6. The powder sweeping mechanism of claim 1, wherein: a cleaning gap (3213) is arranged on the upper side of the centrifugal sweeping plate (321) close to the central part (31), and a brush (3214) is arranged in the cleaning gap (3213); and / or 7. The powder sweeping mechanism of claim 1, wherein: a falling blocking part (3212) is arranged on the top of the centrifugal sweeping plate (321) along the first direction; and / or 8. The powder sweeping mechanism of claim 1, wherein: the centrifugal sweeping plate (321) is provided with a cleaning surface (3211) arranged to be inclined upward along the first direction. The application further relates to a cutter assembly (5) arranged above the powder falling cavity (11), so that the powder formed by grinding through the cutter assembly (5) falls into the powder falling cavity (11). ​ 9. A polishing apparatus characterized by comprising: ​ ​ ​ The cutter head assembly (5) comprises a fixed cutter head (51) and a movable cutter head (52), the fixed cutter head (51) is provided with a grinding cavity (53) therein, and the movable cutter head (52) is rotationally arranged in the grinding cavity (53).

10. A coffee bean grinder characterized by: The grinding device comprises the grinding device according to claim 9.

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