JPH08103383A - Bean mill - Google Patents

Abstract

PURPOSE: To finely and uniformly grind beans without needing a large torque in a manner such that a plurality of grinding blades for roughly grinding by a relative rotation of grinding plates are uprightly installed in the center of the grinding plates and grinding blades are arranged in a bean introducing gap. CONSTITUTION: Beans 5 are introduced from a bean introducing path 2 of a hopper 13 through an introducing opening into a bean introducing gap 4 in the center of a pair of grinding plates 1 which relatively rotate and are roughly ground by a plurality of grinding blades 7 which are uprightly installed in the center of each of the grinding plates 1. The beans 5 are moved toward the periphery by a centrifugal force of the grinding plates 1 and are mashed by mashing sections 3 which are close each other. After that, the beans are discharged to the outside of the grinding plates 1. Specifically, the beans 5 are finely cut by finely cutting sections 8 each of which is formed inside each mashing section 3 and, after that, they are mashed by the mashing sections 3 and are discharged to the outside of the grinding plates 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bean grinder that grinds coffee beans and the like into powder.

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
There are two types of bean grinders that grind coffee beans into powder, such as coffee beans that are introduced from a hopper and crushed by a rotary blade that is rotated by the power of a motor, and coffee beans that are introduced from a hopper to a motor. There are two types, one is a type that grinds and grinds with a pair of lapping disks that rotate relative to each other. However, the coffee bean grinder with the structure like the former has the drawback that the coffee beans cannot be finely ground and the size of the ground particles is not uniform, and the coffee bean with the structure like the latter is also available. Coffee beans are finely ground in a grinder,
A large torque is required to rotate the lapping board to grind hard coffee beans, so a large torque is required by driving the lapping board with a large motor or engaging a large gear with a pinion of a small motor. However, there is a drawback that the coffee grinder itself becomes large in size, and the cost becomes higher accordingly.

The present invention takes note of such drawbacks, and enables coffee beans to be finely and uniformly crushed without using a large motor or the like to obtain a large torque, so that the device as a whole can be made compact and lightweight. It provides a soybean grinder that can be used.

[0004]

The gist of the present invention will be described with reference to the accompanying drawings.

A pair of dish-shaped lapping discs 1 that rotate relative to each other are arranged in a bean introduction path 2, and grinding pulverizing units 3 for lapping are formed on the peripheral edge of the lapping disc 1 to be close to each other. 1
A bean introduction space 4 is provided in the center of the bean introduction space, and an introduction opening 6 for introducing a bean 5 into the bean introduction space 4 is provided in one of the lapping boards 1 and is introduced into the bean introduction space 4 through the introduction opening 6. In the soybean grinder configured to crush the beans 5 to be crushed by the crushing crusher crushing unit 3 and discharge the beans 5 to the outside of the pair of crushing machines 1, the crushing machine 1 rotates relative to the center of the crushing machine 1. By doing so, a plurality of crushing blade pieces 7 for roughly crushing the beans 5 are provided upright, and the crushing blade pieces 7 are arranged in the bean introduction space 4, and the pulverizer is characterized.

Further, beans 5 roughly crushed by the crushing blade piece 7 are finely crushed by the crushing mortar crushing section 3 in an intermediate portion between the crushing crusher crushing section 3 and the crushing blade pieces 7 of the crushing board 1. The bean grinder according to claim 1, characterized in that a fine fragment portion 8 for finely chopping is provided in front.

[0007]

When the beans 5 are introduced into the bean introduction space 4 in the central portion of the lapping board 1 through the introduction openings 6 of the pair of lapping boards 1 which rotate relative to each other from the bean introduction path 2, the beans 5 are ground. 1 is roughly crushed by a plurality of crushing blade pieces 7 provided upright in the central portion, and further moved by the centrifugal force of the rotating lapping disc 1 toward the peripheral part of the lapping disc 1 to bring the pair of lapping discs 1 close to each other. It is crushed by the grinding mill 3 and discharged to the outside of the pair of grinding machines 1.

Also, in the above, the beans 5 roughly crushed by a plurality of crushing blade pieces 7 provided upright in the central portion of the lapping plate 1.
Is finely shredded by a fine fragment 8 provided continuously inside the grinding crushing unit 3 of the grinding machine 1 and then crushed by the grinding crushing unit 3 to form a pair of grinding machines 1. Will be discharged to the outside.

[0009]

EXAMPLE The present example is applied to a ground mortar grinding type coffee bean grinder which grinds, grinds and grinds coffee beans as beans 5 by a pair of upper and lower grinding machines 1 which rotate relative to each other. .

More specifically, a dish-shaped lapping disc 1 having a lapping mill crushing portion 3 formed at the peripheral portion is directly attached to the tip of the driving shaft of the driving motor arranged in the case body 9, and the driving motor is driven. This laminating board 1 is operated by the operation of the case body 9
It is provided so as to rotate horizontally at the opening 11 on the upper surface.

In addition, a grinding mill 3 for grinding mortar is formed in the peripheral portion at the lower part of the hopper 13 standing on the opening 11 on the upper surface of the case body 9, and is connected to the bean introduction path 2 of the hopper 13 at the central portion. The lapping board 1 having the introduction opening 6 formed therein is fixed with screws and the hopper 13 is erected on the upper part of the case main body 9 so that the lapping board 1 of the upper opening 11 of the case main body 9 and the lower part of the hopper 13 are provided. The bean introduction path 2 of the hopper 13 is provided so as to be vertically paired with the lapping board 1 in a horizontal proximity state and arranged so that a bean introduction space 4 is formed in the central portion of the lapping board 1. Through the introduction opening 6, the bean introduction void 4
When coffee beans are introduced into the machine, the upper fixed grinding machine 1 and the lower rotating grinding machine 1 are ground together. The centrifugal force of the lower grinding machine 1 that is ground and crushed by the mortar grinding unit 3 Thus, it is configured to be discharged to the outside of the pair of laminating boards 1 and housed in a housing portion 14 provided on a side portion of the case body 9.

In this embodiment, in the above coffee bean grinder, a plurality of crushing blade pieces 7 for roughly crushing coffee beans by the relative rotation of the crushing machine 1 relative to the center of the crushing machine 1 are provided upright. A crushing blade piece 7 is arranged in the bean introduction space 4.

Further, the coffee beans coarsely crushed by the crushing blade pieces 7 are finely crushed by the crushing mortar crushing section 3 at an intermediate portion between the crushing mill crushing section 3 and the crushing blade pieces 7 of the crushing board 1. A fine fragment portion 8 that is finely chopped before being rubbed is provided inside the crushing mill crushing portion 3 in a continuous manner.

The crushing blade pieces 7 are a pair of upper and lower lapping disks 1.
Four grooves are formed radially in the central part of the lower lapping board 1 from the central part of the lapping board 1. Standing pieces are respectively provided in two predetermined opposing grooves among the four grooves. An L-shaped plate is provided so that a portion thereof is formed to be inclined at a predetermined angle in the rotation direction of the lapping board 1.

The fine fragments 8 are formed by inclining the crushing crusher crushing units 3 located at the three radiating positions from the center of the upper and lower crushing plates 1 to the vicinity of the crushing blades 7 in the radial direction of the crushing plate 1 by a predetermined angle. It is formed by extending and inwardly standing up.

Further, in this embodiment, the receiving body 10 integrally attached to the lower part of the hopper 13 is rotated leftward and rightward so that the adjacent crushing crusher crushing parts 3 of the pair of upper and lower sliding crushing plates 1 are closely spaced from each other. The indicator knob 19 formed on the lower side surface of the receiver 10 is aligned with the scale 18 indicating the close distance of the grinding mill 3 formed on the upper surface of the case body 9. The coffee beans can be crushed to a desired degree of roughness by moving them.

With this structure, coffee beans introduced from the bean introduction path 2 of the hopper 13 into the bean introduction space 4 at the center of the lapping board 1 through the introduction opening 6 are firstly ground into blade pieces. 7 is coarsely crushed, then finely crushed by the fine fragment portion 8 on the outside of the crushing blade piece 7, and then finely crushed by the grinding mill crushing unit 3 on the outer side of the fine fragment portion 8. Become.

Therefore, coffee beans can be finely and uniformly crushed by the triple crushing structure, and the roughness of the coffee beans to be crushed can be adjusted by adjusting the distance between the grinding crushing units 3 closely. Be effective.

Further, as described above, the coffee beans are gradually shredded and then ground in the mortar crushing unit 3, so that a large torque is not required for power as in the conventional case, and a simple motor direct connection structure is used. The size and weight of the device can be reduced.

[0020]

Since the present invention is constructed as described above, the beans introduced into the bean introduction gap in the central portion of the pair of lapping boards which rotate relative to each other through the introduction opening from the bean introducing passage are firstly rubbed. After being roughly crushed by the crushing blade pieces erected at the center of the crushing blades, the crushing blades are crushed by the crushing crusher crushing portions that are close to each other on the peripheral edge of the sliding crusher and discharged to the outside of the pair of sliding crushers.

Therefore, since the beans are roughly crushed and then finely ground to be finely ground, the beans can be finely and uniformly crushed, and since the grains to be ground are small, it is possible to drive the lapping machine in the conventional manner. It does n’t require a lot of power,
It becomes an extremely excellent bean grinder that can be configured into a compact and lightweight device as a whole.

In addition, the beans coarsely crushed by the crushing blade pieces are intermediately cut between the crushing mortar crushing section and the crushing blade pieces of the sliding crushing machine and finely shredded before being finely crushed by the sliding mortar crushing section. If a fragment is provided, the beans will be shredded into smaller pieces and then ground in the mortar grinding section, which will further reduce the resistance to milling. It becomes an excellent bean grinder that becomes possible.

[Brief description of drawings]

FIG. 1 is an external perspective view of the present embodiment.

FIG. 2 is an exploded perspective view of a main part of this embodiment.

FIG. 3 is a front view of a lapping board provided in a lower portion of a hopper of this embodiment.

FIG. 4 is a front view of a lapping board provided on an upper portion of a case main body according to the present embodiment.

FIG. 5 is an operation explanatory diagram of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sliding board 2 Bean introduction path 3 Sliding mill crushing section 4 Bean introducing void 5 Bean 6 Introduction opening 7 Grinding blade piece 8 Fine fragment section

Claims (2)

[Claims] 1. A pair of relatively rotating dish-shaped lapping boards are arranged in a bean introduction path, and grinding crushing parts are formed in the periphery of the lapping boards so as to be close to each other, and the center of the lapping board is formed. A bean introduction space is provided in one part, and an introduction opening for introducing beans into this bean introduction space is provided in one grinding plate, and the beans introduced into the bean introduction space through this introduction opening are ground together and a milling unit In a soybean grinder configured to be crushed and discharged to the outside of a pair of grinding machines, a plurality of crushing blade pieces for roughly crushing beans by the relative rotation of the grinding machine to the central portion of the grinding machine are set up. A soybean grinder characterized in that a crushing blade piece is provided in the bean introduction space. 2. The beans coarsely crushed by the crushing blade pieces at an intermediate portion between the crushing mortar crushing section and the crushing blade pieces of the grinding machine are finely shredded before being finely crushed by the sliding mortar crushing section. The bean grinder according to claim 1, wherein a fine fragment portion is provided.