Feeding assembly and bean grinder
By using a combination of a swirling feeder and a baffle in the feed assembly of the coffee grinder, the problem of clogging caused by excessively fast bean falling speed is solved, enabling beans to enter the feeding channel in an orderly manner and improving grinding efficiency and quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SONGSHAN HUBUKU TECHNOLOGY CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-01
AI Technical Summary
Existing coffee grinders suffer from feed blockage during the grinding process due to the excessive speed at which the beans fall, affecting grinding efficiency and quality.
It adopts a combination structure of swivel and baffle. The swivel rotates at the bean inlet and guides the beans through the inclined surface. The bottom abutment block pushes the baffle to deform and form a channel, controlling the flow rate of the falling beans and avoiding blockage.
Effectively control the flow rate of soybeans to avoid blockages, ensure that soybeans enter the feeding channel in an orderly manner, and improve grinding efficiency and quality.
Smart Images

Figure CN224179598U_ABST
Abstract
Description
Feeding components and coffee grinder Technical Field
[0001] This application belongs to the field of small household appliance technology, and more specifically, relates to a feeding component and a coffee grinder. Background Technology
[0002] In coffee grinders, when grinding beans (including but not limited to soybeans and coffee beans) into powder, the beans are typically piled in a feed hopper, and the weight of the pile itself carries the beans into the feed channel and then into the grinding chamber. However, this method of feeding beans is prone to clogging during grinding due to the beans falling too quickly, affecting grinding efficiency and potentially the grinding quality. Summary of the Invention
[0003] The purpose of this application is to provide a feeding component and a coffee grinder to solve the technical problem of feeding blockage caused by excessively concentrated coffee bean drop in the prior art.
[0004] To achieve the above objectives, the technical solution adopted in the first aspect of this application is to provide a feeding assembly for assembly at the bean inlet of a coffee grinder, comprising:
[0005] A swivel component is rotatably disposed at the bean inlet and can cover part of the bean inlet. The swivel component has inclined surfaces on two opposite sides along the axial direction of the bean inlet, and an abutment block is provided at the bottom of the swivel component.
[0006] A driving component is used to drive the rotating material to rotate;
[0007] A flexible baffle is positioned after the swivel in the feeding direction to cover part of the bean inlet. The minimum axial distance between the baffle and the swivel is less than the axial height of the abutment block. The abutment block can push the baffle to deform to form a channel through which the beans can pass.
[0008] Optionally, the driving member is disposed on the rotation axis of the spinning member, or the driving member is disposed on one side of the rotation axis of the spinning member.
[0009] Optionally, the driving component is disposed on one side of the rotating component, the driving component includes a motor and a gear disposed on the output shaft of the motor, the rotating component further includes a rotating ring and an external gear ring disposed on the outside of the rotating ring, the external gear ring meshes with the gear, and the rotating component is disposed inside the annular ring of the rotating ring.
[0010] Optionally, a spiral inclined surface is provided at the bottom of the spun part.
[0011] Optionally, the abutting block abuts against a region on the stop member near its circumferential edge.
[0012] Optionally, the abutment block is provided with a guide slope on the side facing the rotation direction of the rotating component.
[0013] Optionally, the baffle includes a plurality of baffle plates arranged in an array along the circumferential direction, and there is a gap between two adjacent baffle plates in the circumferential tangential direction.
[0014] In a second aspect of this application, a coffee grinder is provided, comprising a body, a grinding chamber and a feeding channel communicating with the grinding chamber are provided on the body, a coffee inlet communicating with the feeding channel and a powder outlet communicating with the grinding chamber are provided on the body; and the aforementioned feeding component is disposed in the coffee inlet.
[0015] Optionally, the feeding channel is horizontally arranged, and the bean inlet and the powder outlet are respectively located at both ends of the feeding channel.
[0016] Optionally, a feed hopper is provided at the bean inlet, and the feed assembly is located in the powder outlet at the bottom of the feed hopper.
[0017] The feeding assembly and coffee grinder provided in this application have at least the following beneficial effects:
[0018] By incorporating a swivel feeder and a baffle in the feeding assembly, the inclined surface at the top of the swivel feeder guides the beans to slide above the baffle. As the swivel feeder rotates, its bottom abutment block compresses the baffle, creating a channel for the beans. During this process, the inclined surface at the bottom of the swivel feeder compresses and guides the beans into the channel, allowing them to smoothly enter the bean inlet. In this way, the beans are first intercepted by the baffle during their descent, preventing excessive flow and potential feed blockage. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 is a perspective view of a coffee grinder in some embodiments of this application;
[0021] Figure 2 is a perspective view of the feeding assembly in some embodiments of this application;
[0022] Figure 3 is a schematic diagram of the deformation of the baffle plate by the abutment block in some embodiments of this application;
[0023] Figures 4 and 5 are exploded views of the feeding assembly from different perspectives in some embodiments of this application. Detailed Implementation
[0024] To make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following describes this application in further detail with reference to the accompanying drawings and embodiments.
[0025] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.
[0026] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on the other component or indirectly on that other component.
[0027] When a component is said to be "connected to" another component, it can be directly connected to the other component or indirectly connected to that other component.
[0028] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0030] In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically defined.
[0031] Please refer to Figures 1 to 5 together. The feeding components and coffee grinder provided in the embodiments of this application will now be described.
[0032] Referring to Figure 1, it can be understood that the coffee grinder of this embodiment includes a body 410, on which a grinding chamber 420 and a feeding channel 430 communicating with the grinding chamber 420 are provided. The body 410 also has a coffee inlet 440 communicating with the feeding channel 430 and a powder outlet 450 communicating with the grinding chamber 420. A movable blade 421 and a fixed blade 422 are provided in the grinding chamber 420. The movable blade 421 is connected to the shaft of a motor 210 in the body 410 so that it can be driven by the motor 210 to rotate relative to the fixed blade 422, thereby realizing the grinding operation.
[0033] The aforementioned feeding component is located in the bean inlet 440 to control the speed at which the beans fall into the feeding channel 430.
[0034] Furthermore, the feeding channel 430 is horizontally positioned, with the bean inlet 440 and the powder outlet 450 located at opposite ends of the feeding channel 430. This allows the beans falling into the bean inlet 440 to be buffered within the feeding channel 430, ensuring that the beans enter the grinding chamber 420 in an orderly manner and guaranteeing better grinding quality.
[0035] Furthermore, a feed hopper is provided at the bean inlet 440 of the machine body 410. The feed hopper is funnel-shaped, and the aforementioned feeding component is located at the bottom of the feed hopper. In this way, the conical funnel space in the feed hopper can provide storage space, and the bean pile can be temporarily stored before falling into the feeding channel 430, so as to avoid the feeding jamming problem caused by too many beans in the feeding channel 430.
[0036] Referring to Figures 2 to 5, it can be understood that the feeding assembly of this embodiment includes a swivel member 100, a drive member 200, and a stop member 300. The swivel member 100 is rotatably disposed at the aforementioned bean inlet 440. The drive member 200 drives the swivel member 100 to rotate. The stop member 300 is disposed after the swivel member 100 in the feeding direction, and its position within the bean inlet 440 is fixed. The swivel member 100 and the stop member 300 work together to control the falling of beans within the bean inlet 440.
[0037] Specifically, referring to Figures 2, 4, and 5, the swivel feeder 100 has inclined surfaces on both opposite sides of the bean inlet 440 along the axial direction. In some embodiments, the top inclined surface 110 of the swivel feeder 100 is a unidirectional inclined surface, or the top inclined surface 110 of the swivel feeder 100 is a spiral inclined surface around the axial direction; similarly, the bottom inclined surface 120 of the swivel feeder 100 can also be a unidirectional inclined surface, or the bottom inclined surface 120 of the swivel feeder 100 is a spiral inclined surface around the axial direction. Furthermore, in the orthographic projection direction parallel to the axial direction, the orthographic projection areas of the top inclined surface 110 and the bottom inclined surface 120 are equal, and their orthographic projection areas are smaller than the opening size of the bean inlet 440; for example, their orthographic projection areas are half the opening size of the bean inlet 440.
[0038] Meanwhile, referring to Figures 2 to 5, an abutment block 130 is provided protruding from the bottom of the spinning member 100, and the abutment block 130 is provided at the highest point of the bottom inclined surface 120. When the spinning member 100 is driven to rotate by the driving member 200, the abutment block 130 can rotate with the spinning member 100.
[0039] Referring to Figures 3 to 5, the baffle 300 is made of a flexible material (such as a silicone sheet or rubber sheet), possessing a certain degree of flexibility. Furthermore, the baffle 300 is flexible enough to withstand the weight of the bean pile itself without external pressure. Additionally, the baffle 300 can cover part of the bean inlet 440. Preferably, the area of the baffle 300 not covering the bean inlet 440 is smaller than the diameter of a single bean. In some embodiments, the baffle 300 can be an annular plate (not shown in the figures); in other embodiments, the baffle 300 can include a plurality of baffle plates 310 arranged in a circumferential array, with a gap between adjacent baffle plates 310 in the circumferential tangential direction, the gap being smaller than the diameter of the bean.
[0040] Furthermore, the stop 300 is configured such that the minimum axial distance between it and the swivel 100 is less than the height of the abutment block 130 protruding axially from the highest point of the bottom inclined surface 120 of the swivel 100. That is, the stop 300 can contact the abutment block 130 and be pressed by the abutment block 130 so that the stop 300 can deform axially.
[0041] Specifically, when the rotating material component 100 rotates, the abutting block 130 on it abuts against and squeezes the blocking material component 300 at different circumferential positions. Since the blocking material component 300 is flexible, when squeezed by the abutting block 130, the blocking material component 300 deforms and the area on it that does not cover the bean inlet 440 expands. That is, the blocking material component 300 alternately forms channels 300a that allow the beans to pass through at different circumferential positions in the bean inlet 440. During this process, the beans in the feed hopper at different circumferential positions in the bean inlet 440 can alternately fall vertically to enter the feeding channel 430, so that the beans can enter the feeding channel 430 in a small flow and in an orderly manner.
[0042] By setting a baffle 300 and an abutment block 130 at the bottom of the swirl feeder 100, in areas of the baffle 300 that are not deformed by the abutment block 130, the soybeans can be blocked by the abutment block 130 to intercept the flow; while in areas of the baffle 300 that are deformed by the abutment block 130, the baffle 300 deforms to form a channel 300a that allows the soybeans to pass through. The soybeans can pass through in an orderly manner with a small flow rate and enter the feeding channel 430. In this way, the problem of excessive flow of soybeans causing feed blockage can be avoided, which is conducive to the full grinding of soybeans.
[0043] In some embodiments, the aforementioned drive member 200 is disposed on the axis of the spinning member 100, and directly drives the spinning member 100 to rotate.
[0044] Referring to Figures 2 to 5, in some other embodiments, the drive member 200 is disposed on one side of the axis of the spinning member 100, and includes a motor 210 and a gear 220 disposed on the output shaft of the motor 210. Correspondingly, the spinning member 100 includes a rotating ring and an external toothed ring 230 disposed on the outside of the rotating ring, and the external toothed ring 230 meshes with the gear 220; wherein, the inclined surface on the aforementioned spinning member 100 is formed on the inner side of the annular ring.
[0045] Referring to Figures 2, 4, and 5, in some specific embodiments, the top inclined surface 110 of the swivel component 100 is a unidirectional inclined surface, and the bottom inclined surface 120 of the swivel component 100 is a spiral inclined surface surrounding the axial direction. Thus, the top inclined surface 110 of the swivel component 100 can guide the bean pile to converge above the baffle 300; and the bottom spiral inclined surface 120 of the swivel component 100 can better compress the bean grains when the swivel component 100 rotates, allowing the bean grains to fall smoothly from the baffle 300 into the feeding channel 430 through the channel 300a formed by the abutment block 130.
[0046] Referring to Figures 2 to 5, in some specific embodiments, the abutting block 130 abuts against the area near the circumferential edge of the baffle member 300. Preferably, the baffle member 300 includes a plurality of baffle plates 310 arranged in a circumferential direction, with a gap between adjacent baffle plates 310 in the circumferential tangential direction, the gap being smaller than the particle size of the bean. Thus, when the abutting block 130 presses against the baffle member 300, the channel 300a generated by the deformation on the baffle member 300 is larger, which can increase the bean flow rate while allowing the beans to fall in an orderly manner.
[0047] Furthermore, referring to Figure 5, the abutment block 130 is provided with a guide slope 131 on the side facing the rotation direction of the rotating material member 100. Thus, when the material stop member 300 is squeezed and deformed, the aforementioned channel is formed between two adjacent material stop pieces 310. Moreover, the squeezed material stop piece 310 can form an inclined guide slope 131, which, together with the spiral slope 120 at the bottom of the aforementioned rotating material member 100, allows the bean grains to fall into the feeding channel 430 in a parabolic trajectory.
[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A feeding assembly for mounting at the coffee inlet of a coffee grinder, characterized in that, include: A swivel feeder is rotatably disposed at the bean inlet and capable of covering part of the bean inlet. The swivel feeder has inclined surfaces on two opposite sides in the axial direction of the bean inlet. An abutment block is disposed at the bottom of the swivel feeder. A drive member is used to drive the swivel feeder to rotate. A flexible baffle is disposed behind the swivel feeder in the feeding direction to cover part of the bean inlet. The minimum axial distance between the baffle and the swivel feeder is less than the axial height of the abutment block. The abutment block can push the baffle to deform to form a channel through which the bean grains can pass.
2. The feeding assembly as described in claim 1, characterized in that: The driving component is disposed on the rotation axis of the spinning component, or the driving component is disposed on one side of the rotation axis of the spinning component.
3. The feeding assembly as described in claim 2, characterized in that: The driving component is disposed on one side of the rotating component. The driving component includes a motor and a gear disposed on the output shaft of the motor. The rotating component also includes a rotating ring and an external gear ring disposed on the outside of the rotating ring. The external gear ring meshes with the gear. The rotating component is disposed inside the annular ring of the rotating ring.
4. The feeding assembly as described in claim 1, characterized in that: A spiral-shaped inclined surface is provided at the bottom of the spun part.
5. The feeding assembly as described in claim 1 or 4, characterized in that: The abutting block abuts against the area near the circumferential edge of the stopper.
6. The feeding assembly as described in claim 1 or 4, characterized in that: The abutment block has a guide slope on the side facing the rotation direction of the rotating part.
7. The feeding assembly as described in any one of claims 1 to 4, characterized in that: The baffle includes a plurality of baffle plates arranged in an array along the circumferential direction, and there is a gap between two adjacent baffle plates in the circumferential tangential direction.
8. A coffee grinder, characterized in that, The invention comprises: a machine body, wherein a grinding chamber and a feeding channel communicating with the grinding chamber are provided on the machine body, and a bean inlet communicating with the feeding channel and a powder outlet communicating with the grinding chamber are provided on the machine body; and a feeding component as described in any one of claims 1 to 7, wherein the feeding component is disposed in the bean inlet.
9. The coffee grinder as described in claim 8, characterized in that: The feeding channel is horizontally arranged, and the bean inlet and the powder outlet are respectively located at both ends of the feeding channel.
10. The coffee grinder as described in claim 8 or 9, characterized in that: A feed hopper is provided at the bean inlet, and the feed assembly is located in the powder outlet at the bottom of the feed hopper.