WO2021017097A1

WO2021017097A1 - Bean grinder

Info

Publication number: WO2021017097A1
Application number: PCT/CN2019/104201
Authority: WO
Inventors: 朱明德
Original assignee: 登辉电器(惠州)有限公司
Priority date: 2019-07-31
Filing date: 2019-09-03
Publication date: 2021-02-04
Also published as: CN110301838A

Abstract

A bean grinder, comprising: a bean grinding blade assembly (1) and a plurality of bean bins (2), the bean grinding blade assembly (1) is arranged at the bottom of the bean bins (2), the bottom of each bean bin (2) is provided with a bean feeding screw, when coffee beans in a certain bean bin (2) need to be ground, the corresponding bean feeding screw rotates to convey the beans to the bean grinding blade assembly (1), when a certain proportion of coffee powder is needed, the feeding amount can be determined by rotating the number of rotations of the bean feeding screw, after the bean feeding is finished, the bean grinding blade assembly (1) should be further operated for a period of time to ensure that the coffee beans in the bean grinding blade assembly (1) are completely ground up and emptied, so as to facilitate the bean grinding operation next time. By means of the combination of different bean bins (2) and the bean feeding screws, not only different coffee beans can be conveyed and ground, but also the grinding operation of coffee beans in different proportions can be realized, in addition, advantages of being simple in structure and low in product production cost are further provided.

Description

A kind of grinder

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on July 31, 2019, with an application number of 201910701535.4 and an invention title of "a kind of grinder", the entire content of which is incorporated into this application by reference.

Technical field

The invention relates to the technical field of household appliances, in particular to a grinder.

Background technique

Existing grinders, such as fully automatic coffee machines or coffee grinders, mainly include a coffee bean box and a grinder component arranged up and down. The coffee beans in the coffee bean box fall freely into the grinder component under the action of gravity After being ground into coffee powder, it will fall into the brewing system for coffee brewing.

The current coffee grinder is mainly a bean box corresponding to an independent grinder component. When the user selects different coffee beans for grinding, the coffee powder will be stored in the grinder, which will affect the next coffee grinding. In order to prevent the taste of the coffee beans selected by the user from being affected by the coffee beans that were ground last time, if at least two independent coffee bean grinding components are used to solve the above problems, the volume of the grinder will increase and the cost will also increase.

Therefore, how to provide a bean grinder with a simple structure and a lower cost is a technical problem to be solved by those skilled in the art.

Summary of the invention

In view of this, the object of the present invention is to provide a bean grinder that can grind different beans on the premise of a bean grinder assembly.

In order to achieve the above objectives, the present invention provides the following technical solutions:

A bean grinder, comprising: a bean grinder assembly and a plurality of bean bins, the bean grinder assembly is arranged at the bottom of the bean bin, and the bottom of each bean bin is provided with a bean-feeding screw. The bean screw is used for conveying the beans in the corresponding bean bin to the bean grinder assembly.

Preferably, it comprises a left bean silo and a right bean silo. The bean-feeding screw at the bottom of the left bean silo and the right bean silo are the same long screw. When the long screw rotates forward, only the right bean The beans in the bin are conveyed into the bean grinder assembly; when the long screw is reversed, only the beans in the left bean bin are conveyed into the bean grinder assembly.

Preferably, it also includes a bean-feeding motor for driving the long screw to rotate.

Preferably, the bottom of the left bean bin and the right bean bin are provided with a cylindrical feeding passage, the long screw passes through the inside of the cylindrical feeding passage, and the upper and left sides of the cylindrical feeding passage are respectively provided There is a feeding port, and the bottom of the cylindrical feeding channel is provided with a discharging port.

Preferably, both ends of the bean feeding screw are horizontally hinged on the side wall of the bean bin.

Preferably, it further comprises a detection device and a control device, the detection device is used to detect the rotation speed of the bean-feeding screw, and the control device is used to control when the rotation speed detected by the detection device meets a preset requirement The bean-feeding motor stops rotating.

Preferably, the bottom of the bean bin is detachably connected to the bean inlet of the bean grinder assembly.

Compared with the prior art, the above technical solution has the following advantages:

The bean grinder provided by the present invention includes: a bean grinder component and a plurality of bean bins. The bean grinder component is arranged at the bottom of the bean bin, and the bottom of each bean bin is provided with a bean feeding screw. When the coffee beans in a bean bin are rotated, the corresponding bean feeding screw can be transferred to the bean grinder assembly. When a certain proportion of coffee powder is required, the feeding amount can be determined by rotating the rotation of the bean feeding screw , After sending the beans, the bean grinder assembly should work for a period of time to ensure that the coffee beans in the bean grinder assembly are completely ground and emptied to facilitate the next bean grinding operation. Through the bean grinder provided in the present application, through the combination of different bean bins and bean feeding screws, not only can convey and grind different coffee beans, but also realize the grinding operation of coffee beans in different proportions, and also has a simple structure. The advantage of low production cost.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work.

Fig. 1 is a schematic diagram of a three-dimensional structure of a grinder according to a specific embodiment of the present invention;

2 is a schematic diagram of a partial explosion structure of a grinder according to a specific embodiment of the present invention;

Fig. 3 is a schematic front view of the structure of a grinder according to a specific embodiment of the present invention;

Fig. 4 is a front sectional view of the structure of a grinder according to an embodiment of the present invention.

The reference signs are as follows:

1 is the bean grinder assembly, 2 is the bean bin, 21 is the left bean bin, 22 is the right bean bin, 23 is the cylindrical feeding channel, 231 is the feed port, 232 is the discharge port, 3 is the long screw, 4 is Send beans motor.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

Please refer to Figures 1 to 4, Figure 1 is a schematic diagram of a three-dimensional structure of a grinder provided by a specific embodiment of the present invention; Figure 2 is a schematic diagram of a grinder provided by a specific embodiment of the present invention Schematic diagram of a partial explosion structure; Figure 3 is a schematic front view of a bean grinder according to a specific embodiment of the present invention; Figure 4 is a front view of a bean grinder according to a specific embodiment of the present invention Sectional structure diagram.

The embodiment of the present invention provides a bean grinder, which can be used for grinding coffee beans or other beans. In this embodiment, the grinding object is the coffee bean for distance description. The bean grinder includes: a bean grinder assembly 1 and Each bean bin 2, the number of bean bins 2 can be selected according to requirements. The bean grinder assembly 1 is set at the bottom of the bean bin 2. Each bean bin 2 is equipped with a bean feeding screw at the bottom. Before the bean feeding screw rotates, the bean A certain amount of coffee beans is placed in the bin 2. When the coffee beans in a certain bean bin 2 need to be ground, the corresponding bean-feeding screw can be rotated to convey to the bean grinder assembly 1. When a certain proportion of coffee is required When powdering, the feeding amount can be determined by rotating the rotation of the bean-feeding screw. After the bean-feeding is over, that is, when the bean-feeding screw stops rotating, the bean grinder assembly 1 should work for a period of time to ensure that the bean grinder assembly 1 The coffee beans are completely ground and emptied to facilitate the next grinding operation. Through the bean grinder provided in the present application, through the combination of different bean bins 2 and bean feeding screws, not only can convey and grind different coffee beans, but also realize the grinding operation of coffee beans in different proportions, and also has a simple structure , The advantage of low production cost.

It should be noted that, the specific structure and working principle of the bean grinder assembly 1 can be referred to the prior art, which will not be repeated here.

Preferably, it includes two bean bins 2, such as a left bean bin 21 and a right bean bin 22 arranged on the upper part of the bean grinder assembly 1, and the bean feeding screws at the bottom of the left bean bin 21 and the right bean bin 22 are the same long screw 3. The structural characteristics of the screw have the characteristics of unidirectional conveying, that is, when rotating in one direction, the material will be conveyed in the direction of the screw blade. Therefore, when the long screw 3 rotates forward, only the coffee beans in the right bean bin 22 are Is conveyed to the bean grinder assembly 1; when the long screw 3 is reversed, only the coffee beans in the left bean bin 21 are conveyed to the bean grinder assembly 1. It can be understood that when conveying one of the bean bins 2 When coffee beans are being used, the coffee beans in the other bean bin 2 will not fall, and the coffee beans in the other bean bin 2 will fall only when the long screw 3 is reversed.

Further, it also includes a bean feeding motor 4 connected to one end of the long screw 3, the bean feeding motor 4 is used to drive the long screw 3 to rotate, and the ratio of the beans can be controlled by the forward and reverse rotation of the bean feeding screw, such as the A bean selected by the user The ratio with B bean is 1:3, then the ratio of forward rotation and reverse rotation time of the bean feeding motor 4 will run at 1:3. The forward and reverse rotation can be forward and then reverse, or reverse first. It can rotate forward again, or alternate forward and reverse, as long as the total forward and reverse time ratio is 1:3. The bean-feeding screw is horizontally arranged at the bottom of the bean bin 2, that is, the two ends of the bean-feeding screw are rotatably connected to the side wall of the bean bin 2. In order to facilitate the replacement of the bean bin 2, the bean bin 2 can be detachably connected to the grinder assembly The bean feeding port of 1, wherein the bean feeding screw and bean bin 2 are preferably detachably connected to the bean feeding port of the bean grinder assembly 1 as an integral component.

Specifically, the bottoms of the left bean bin 21 and the right bean bin 22 are provided with a cylindrical feeding passage 23, and the long screw 3 passes through the inside of the cylindrical feeding passage 23, wherein the outer edge of the spiral blade of the long screw 3 can be connected to the cylindrical feeding passage. The inner side walls of 23 are in contact with each other to prevent coffee beans from falling freely into the grinder assembly 1. The upper and left sides of the cylindrical feeding channel 23 are each provided with a feeding port 231, and the bottom of the cylindrical feeding channel 23 is provided with an outlet料口232.

Further, it also includes a detection device and a control device, wherein the detection device can use a Hall sensor, the detection device is used to detect the number of rotations of the bean-feeding screw, the control device is respectively connected with the detection device and the bean-feeding motor 4, and the control device is used for When the number of revolutions detected by the detection device meets the preset demand, the bean feeder motor 4 is controlled to stop, that is, by controlling the number of revolutions of the bean feeder motor 4, the amount of coffee powder used can be precisely controlled without the user adjusting the thickness of the bean grinder The influence of fineness, because the traditional method of controlling the amount of coffee powder is controlled by the working time of the grinder motor, but when the thickness of the bean grinder is adjusted by the user, the amount of coffee powder will become different. Accurate, because when the setting is coarse powder, the gap between the upper and lower bean knives will increase, and the output of coffee powder at the same time will increase, but after the beans are delivered through the screw, the amount of beans will be rotated by the screw. The number is determined and not affected by the grinder component 1.

It is worth mentioning that in this application, one screw can be used for forward and reverse rotation and one bean feeding motor can control two bean bins for independent bean feeding. Of course, those skilled in the art can think of separating two The independent screw and two bean-feeding motors can also realize the independent bean-feeding operation of the two bean bins. It is also within the protection scope of the present invention. Those skilled in the art can also think of adding one By combining the coffee bean bin and the coffee bean conveying device, you can realize one sharpening component and four bean bins, that is, the user can choose four different coffee tastes, and the same can be said for the six or eight coffee taste options. In addition, if you want to implement the three coffee taste schemes, add a bean bin, independent screw and bean delivery motor on the basis of Figure 1.

The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the various embodiments can be referred to each other.

The above is a detailed introduction to the bean grinder provided by the present invention. Specific examples are used in this article to illustrate the principle and implementation of the present invention. The description of the above examples is only used to help understand the method and core idea of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

A bean grinder, characterized by comprising: a bean grinder component (1) and a plurality of bean bins (2), the bean grinder assembly (1) is arranged at the bottom of the bean bin (2), each The bottom of the bean bin (2) is provided with a bean-feeding screw, and the bean-feeding screw is used for conveying the beans in the corresponding bean bin (2) to the bean grinder assembly (1).
The bean grinder according to claim 1, characterized by comprising a left bean bin (21) and a right bean bin (22), the left bean bin (21) and the right bean bin (22) at the bottom The bean feeding screw is the same long screw (3). When the long screw (3) rotates forward, only the beans in the right bean bin (22) are transported to the bean grinder assembly (1) When the long screw (3) is reversed, only the beans in the left bean bin (21) are transported to the bean grinder assembly (1).
4. The bean grinder according to claim 2, further comprising a bean-feeding motor for driving the long screw to rotate.
The bean grinder according to claim 3, characterized in that the bottom of the left bean bin (21) and the right bean bin (22) are provided with a cylindrical feeding channel (23), and the long screw (3) ) Through the inside of the cylindrical feeding channel (23), the upper left and right sides of the cylindrical feeding channel (23) are each provided with a feeding port (231), the bottom of the cylindrical feeding channel (23) With a discharge port (232).
The bean grinder according to claim 1, wherein the two ends of the bean feeding screw are horizontally hinged on the side wall of the bean bin (2).
The bean grinder according to any one of claims 1 to 5, further comprising a detection device and a control device, the detection device is used to detect the number of revolutions of the bean-feeding screw, and the control device is used When the number of rotations detected by the detection device meets the preset requirement, the bean feeding motor (4) is controlled to stop rotating.
The bean grinder according to claim 6, wherein the bottom of the bean bin is detachably connected to the bean inlet of the bean grinder assembly.