KR102252891B1 - Coffee beans grinder - Google Patents

Abstract

The present invention relates to a coffee bean grinder, which comprises: a grinding unit grinding inserted coffee beans; a separation unit separating the ground coffee beans into green beans and skins; and a dust collecting unit collecting only the skins separated from the green beans in the separation unit. The coffee bean grinder is capable of easily separating the coffee beans into the green beans and the skins through the grinding unit.

Description

Coffee bean grinder {COFFEE BEANS GRINDER}

The present invention relates to a coffee bean grinder for crushing the husk of coffee beans, and more particularly, by separating the coffee beans into green beans and husks through a grinding unit, and collecting and removing the separated husks, it is not uncommon when coffee is extracted. It relates to a coffee bean grinder that removes (雜味) to provide rich and tasty coffee.

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In general, coffee beans are composed of a fibrous cell membrane formed in a honeycomb structure inside the shell and the shell, and coffee particles inside the cell membrane, and the shell has no nutritional value and absorbs coffee fat (oil). The inherent flavor of coffee beans is reduced, and unnecessary compounds are generated by fusion or compounding with cell membranes and coffee particles by heat generated during grinding. There is a problem that causes mischief.

In addition, in the process of finely grinding coffee beans, the cell membrane made of fibers is forcibly destroyed, and the odors contained in the fibers are exposed by the heat generated during the grinding, and the coffee particles are not protected by the cells. As a result, there is a problem that a burnt taste occurs due to carbonization, such as burning coffee fat.

For example, coffee bean powder obtained by crushing roasted coffee beans is extracted by espresso method, or by dripping using a dripper or drinking powder by pouring pulverized coffee beans in water, in the process of pulverizing roasted coffee beans. Due to the heat generated, the inherent flavor of roasted coffee beans cannot be maintained, so there is a limit to the deep and rich flavor of coffee.

In addition, since conventional coffee powder is finely pulverized to a thickness of 0.2 to 1 mm in the process of pulverizing the coffee beans after roasting the coffee beans, a lot of heat is generated during the pulverization process. There is a problem in that the original flavor of roasted coffee beans is deteriorated.

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Accordingly, as a prior art for solving the above problems, a coffee bean grinder apparatus is disclosed in Korean Patent Publication No. 10-2068124.

The conventional coffee bean grinder apparatus has the advantage of being able to easily obtain a coffee bean powder having a desired particle size by pulverizing the inserted coffee beans using a grinding blade.

However, as described above, the conventional coffee bean grinder device is a problem in that the inner shell is fused or fused to the cell membrane and the coffee particles due to heat generated when the coffee beans are finely ground, so that the coffee beans and the inner shell are not separated smoothly. In addition, there is a problem in that a lot of inner shells are still included in the ground coffee grounds, so that the unique flavor of coffee is reduced due to the uneven taste and burnt taste of the coffee.

Furthermore, the conventional coffee bean grinder device does not separate the green beans and the skin of the coffee beans in the process of grinding the coffee beans, but only pulverizes the coffee beans. There is a problem that is difficult to extract.

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Registered Patent Publication No. 10-2068124 (2020.01.14.)

The present invention has been conceived to solve the above problems, and an object to be solved in the present invention is to provide a coffee bean grinder capable of easily separating coffee beans into green beans and shells through a grinding unit.

In addition, in the process of pulverizing coffee beans through the pulverization unit, the coffee beans are pulverized by passing between pulverizing rollers having different shapes, but the pulverization by the pulverizing rollers is performed sequentially in the first and second steps. It is to provide a coffee bean grinder that can obtain green beans of the size.

In addition, it is to provide a coffee bean grinder that allows only pure green beans to be obtained by supplying air to the ground coffee beans through the grinding unit to separate the separated skin from the green beans and collecting and removing the separated skin.

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In order to solve the above problems, the coffee bean grinder according to the present invention comprises: a grinding unit for grinding the inputted coffee beans; A separating unit for separating the ground coffee beans into green beans and shells; And by providing a coffee bean grinder comprising a; and a dust collecting unit for collecting only the peel separated from the green beans in the separating unit, to solve the technical problem.

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The present invention has a remarkable effect of being able to easily separate coffee beans into green beans and shells through a grinding unit.

In addition, in the process of pulverizing coffee beans through the pulverization unit, the coffee beans are pulverized by passing between pulverizing rollers having different shapes, but the pulverization by the pulverizing rollers is performed sequentially in the first and second steps. It has a remarkable effect to obtain green beans of the size.

In addition, by supplying air to the ground coffee beans through the grinding unit, the separated skin is separated from the green beans, and the separated skin is collected and removed, thereby removing unevenness when the coffee is extracted. It has a remarkable effect in making it possible to serve coffee.

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1 is a cross-sectional view showing coffee beans in a coffee bean grinder according to the present invention.
Figure 2 is a schematic diagram showing a coffee bean grinder according to the present invention.
3 is a side view showing a pulverization part in the coffee bean grinder according to the present invention.
4 is a perspective view showing an example provided with a first interval control unit in the coffee bean grinder according to the present invention.
5 is a side view showing another example of a grinding unit in the coffee bean grinder according to the present invention.
6 is a view showing an example provided with a second interval control unit in the coffee bean grinder according to the present invention.
7 is a side view showing an embodiment of a separating unit and a dust collecting unit in the coffee bean grinder according to the present invention.
8 is a side view showing another embodiment of a separating unit and a dust collecting unit in the coffee bean grinder according to the present invention.
9 is a side view showing another embodiment of a separating unit and a dust collecting unit in the coffee bean grinder according to the present invention.

Advantages and features of the embodiments of the present invention, and a method of achieving them will be apparent with reference to the embodiments described later in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, and only these embodiments make the disclosure of the present invention complete, and are common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification.

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In describing the embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms or words used in the present specification and claims are terms defined in consideration of functions in the embodiments of the present invention, and should not be construed as being limited to a conventional or dictionary meaning, and the inventor In order to explain in the best way, based on the principle that the concept of a term can be appropriately defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

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Therefore, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiments of the present invention, and do not represent all the technical spirit of the present invention, and various equivalents that can replace them at the time of the present application It should be understood that there may be variations and variations.

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Hereinafter, prior to description with reference to the drawings, matters that are not necessary to reveal the gist of the present invention, that is, known configurations that can be obviously added by those skilled in the art are not shown or described in detail. It should be noted that it was not.

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First, before describing various embodiments of the present invention in detail with reference to the accompanying drawings, the directions of components described in the following detailed description or shown in the drawings (for example, "before", "back", "left" , "Right", "top", "bottom", "top", "bottom", "transverse", "longitudinal", "front", "back", "one side", "other side", "inside" and " Terms such as "outside") do not simply indicate or mean that they should have a specific direction, and description of these directions is made to facilitate explanation between configurations with reference to the accompanying drawings.

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Conventional coffee beans 10 are finely pulverized by a grinder method and then extracted to produce a coffee beverage.When pulverized by the grinder method, since the coffee beans are finely pulverized, the shells 12 are mixed together, and in this state When manufactured as a coffee beverage, coffee fat, an effective ingredient, is adsorbed and removed by the shell 12, so that the inherent flavor of coffee is reduced.

Accordingly, the coffee bean grinder according to the present invention separates the coffee beans 10 into the green beans 11 and the shell 12 through the grinding unit 100 in order to solve the above problems, and separates the separated shell 12 It relates to a coffee bean grinder capable of providing coffee that is rich and tastes good by collecting and removing coffee so that coffee extraction is possible with only pure green beans 11, thereby removing irregularities when coffee is extracted.

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Hereinafter, a coffee bean grinder according to the present invention will be described in detail with reference to the accompanying drawings.

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1 is a cross-sectional view showing coffee beans in a coffee bean grinder according to the present invention, and FIG. 2 is a schematic diagram showing a coffee bean grinder according to the present invention.

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First, the coffee beans 10 will be described with reference to FIG. 1, the green beans 11 and the green beans composed of a fibrous cell membrane formed in a honeycomb structure inside the shell 12 and coffee particles formed inside the cell membrane. It consists of a shell (12) surrounding the (11).

That is, the coffee bean grinder according to the present invention pulverizes the coffee beans 10, separates the coffee beans 11 and the peel 12, and then removes the peel 12 so that only pure green beans 11 can be obtained. , It relates to a coffee bean grinder to provide a rich and tasteful coffee by enabling the removal of unevenness (雜味) appearing when extracting coffee containing the peel (12).

Furthermore, in the present specification, only pure green beans 11 from which the peel 12 has been removed can be obtained after the coffee beans 10 are pulverized, so that the peel 12 of the roasted coffee beans 10 can also be removed. do.

In order to achieve this object, the coffee bean grinder according to the present invention includes a pulverizing unit 100, a separating unit 200, and a dust collecting unit 300.

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3 is a side view showing a pulverization unit in the coffee bean grinder according to the present invention, and Fig. 4 is a perspective view showing an example provided with a first interval adjusting unit in the coffee bean grinder according to the present invention.

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The pulverization unit 100 performs a function of pulverizing the coffee to be input, and will be described with reference to FIG. 3, the input unit 110, the first crushing roller 120, the second crushing roller 130, and the discharge unit It is configured to include (140) and the case (150).

That is, the first crushing roller 120 and the second crushing roller 130 are meshed and rotated, and the inserted coffee beans 10 pass between the first crushing roller 120 and the second crushing roller 130 Let crushing take place.

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The input unit 110 is to which the coffee beans 10 are inserted, and as shown in the accompanying drawings, the upper side may be wide and the lower side may be formed in the form of a narrow hopper.

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The first crushing roller 120 is configured to be rotated by a rotation shaft, and the coffee beans 10 inserted into the input unit 110 are rotated by being engaged with the second crushing roller 130 to be described later. Grinding is performed while passing between the roller 120 and the second grinding roller 130.

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The second crushing roller 130 is configured to be rotated by a rotation shaft, and is provided to rotate in engagement with the first crushing roller 120.

That is, the coffee bean grinder according to the present invention is characterized in that the coffee beans 10 are not pulverized by a conventional grinder method, but are pulverized through the first crushing roller 120 and the second crushing roller 130.

In other words, the coffee beans 10 are not crushed by a grinding blade of a conventional grinder method, but by passing between a pair of grinding rollers, and then pulverized, that is, crushed, so that when pulverized, The generation of heat is minimized, and accordingly, the peeling of the shell 12 is made smoothly, so that only pure green beans 11 can be obtained.

Incidentally, the method of passing between a pair of grinding rollers minimizes the generation of heat by being crushed after cracking in the coffee beans 10, thereby minimizing the forcible destruction of the cell membrane of the coffee beans 10, and It is finely pulverized along the cell membrane of the structure to minimize the occurrence of unpleasant taste due to carbonization of the cell membrane, and the effect of allowing the coffee beans 10 to enjoy the inherent deep and rich flavor of the coffee beans 10 can be obtained.

In order to obtain such an effect, the coffee bean grinder according to the present invention is provided so that the first grinding roller 120 and the second grinding roller 130 are engaged with each other to rotate, so that the first grinding roller 120 and the second grinding roller The coffee beans 10 that have passed through 130 are smoothly pulverized, and the green beans 11 and the shell 12 are separated.

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At this time, in the process of pulverizing the coffee beans 10 to a smooth size, as shown in FIG. 4, the first pulverizing roller 120 may have a plurality of horizontal grooves 121 in the form of being dug inward on the outer circumferential surface. I can.

The horizontal groove 121 may be formed in a form having a long length and a narrow width in the longitudinal direction of the long axis of the first crushing roller 120.

In addition, as shown in FIG. 4, the second crushing roller 130 may have a lattice-shaped groove 131 in the shape of the inner circumferential surface.

Preferably, the grid-shaped groove 131 may be formed in an oblique shape with respect to the horizontal groove 121.

Accordingly, the coffee beans 10 may be pulverized more evenly and smoothly in the process of pulverizing while passing through the first pulverizing roller 120 and the second pulverizing roller 130. That is, coffee beans 10 having a large size can be smoothly pulverized.

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The discharge unit 140 is provided under the first crushing roller 120 and the second crushing roller 130 and pulverized while passing through the first crushing roller 120 and the second crushing roller 130 ( 10) is separated into green beans (11) and shells (12) to be discharged.

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The case 150 is provided under the discharge unit 140 to accommodate the discharged green beans 11 and shells 12.

The case 150 may be configured to be detachable from the pulverizing unit 100, and may have a sufficient size to accommodate the pulverized green beans 11 and the shell 12.

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At this time, in FIG. 3, the case 150 has a tray shape with an open upper side, and the green beans 11 and the shell 12 discharged from the discharge unit 140 are dropped and accommodated, but the case 150 Is configured to be sealed inside, a separate tube connecting between the discharge unit 140 and the case 150 is formed, and a separate tube connected to the separation unit 200 and the dust collecting unit 300 to be described later It can be formed and configured.

That is, the green beans 11 and the shell 12 discharged from the discharge unit 140 are accommodated into the case 150 through separate tubes, and the shells are separated by the operation of the separating unit 200 and the dust collecting unit 300 to be described later. (12) can be made to be immediately removed from the green beans (11).

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Depending on the design conditions, a vibrating unit (not shown in the drawing) for causing the case 150 to vibrate may be provided.

This vibrating unit causes the case 150 to vibrate and induces the shell 12 to fly more smoothly by the blowing air supplied from the separating unit 200 to be described later.

Such a vibrating unit has a vibrator that directly transmits vibration to the case, or a protrusion protruding eccentrically spaced apart from the center axis of the case 150 on the bottom surface of the case 150, and the case ( The bottom surface of 150) may be rotated in a radial form and the case 150 may be shaken.

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According to the design conditions, the crushing unit 100 includes a first gap adjusting unit 160 for adjusting the distance between the first crushing roller 120 and the second crushing roller 130 when described with reference to FIG. 4. It can be configured.

The first gap adjusting unit 160 performs a function of adjusting the gap between the first crushing roller 120 and the second crushing roller 130 and may be formed in various forms.

Preferably, it is configured to connect a rotation shaft for rotating the first crushing roller 120 and a rotation shaft for rotating the second crushing roller 130, but by allowing a pair of rotation shafts to be coupled by a screw thread, the handle is rotated. It can be configured so that the distance between the first crushing roller 120 and the second crushing roller 130 is easily adjusted only by the process of making it.

Accordingly, since the distance between the first crushing roller 120 and the second crushing roller 130 can be adjusted, there is an advantage in that the size at which the coffee beans 10 are pulverized can be selectively adjusted.

That is, since the grinding size of the coffee beans 10 can be adjusted, the problem of generating a lot of heat as in the conventional grinder method of finely grinding the coffee beans 10 is blocked, and the grinding size of the coffee beans 10 is reduced from 1 to There is an advantage that it can be adjusted to be crushed to a desired size of 5mm.

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Figure 5 is a side view showing another example of the grinding unit in the coffee bean grinder according to the present invention, Figure 6 is a view showing an example provided with a second interval control unit in the coffee bean grinder according to the present invention.

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According to the design conditions, the crushing unit 100 may be composed of three crushing rollers instead of a pair, as shown in FIG. 5.

This will be described in detail with reference to FIG. 5, and the first crushing roller 120 and the second crushing roller 130 are provided to be engaged and rotated, and the first crushing roller 120 and the third crushing roller 170 are engaged with each other. It may be provided to rotate.

With this configuration, the coffee beans 10 inserted into the input unit 110 first pass between the first crushing roller 120 and the second crushing roller 130, and then sequentially the first crushing roller 120 By passing between the and the third crushing roller 170 secondary, it is possible to obtain a more uniform size of the green beans (11).

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Meanwhile, as shown in FIG. 4, the first crushing roller 120 and the second crushing roller 130 have grooves in the form of being cut inward, but the third crushing roller 170 has a cut-shaped groove. It may be made in the form of a roll having a flat outer peripheral surface that is not formed.

The third crushing roller 170 is formed to have a flat outer circumferential surface, in the first crushing roller 120 and the second crushing roller 130, coffee beans 10 are horizontal grooves 121 and lattice grooves 131 ), the pulverization is performed by being pulverized through the inflow, whereas pulverization is made into larger particles, whereas in the first pulverizing roller 120 and the third pulverizing roller 170, the coffee beans 10 flow only into the horizontal groove 121 and are pulverized. Because it is made, it is possible to obtain green beans 11 of a more uniform size.

That is, the coffee beans 10 passing through the first crushing roller 120 having the horizontal groove 121 and the third crushing roller 170 having a flat outer circumferential surface produce green beans 11 having a more dense and uniform particle size. You can get it.

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According to the design conditions, the crushing unit 100 includes a second gap adjusting unit 180 for adjusting the distance between the first crushing roller 120 and the third crushing roller 170 when described with reference to FIG. 6. It can be configured.

The second interval adjusting unit 180 may have the same configuration as the first interval adjusting unit 160, and the first crushing roller 120 and the third crushing roller are operated through the operation of the second interval adjusting unit 180. The spacing between 170 may be easily adjusted.

That is, as the interval of the second interval adjusting unit 180 is adjusted, the size of the green beans 11 finally obtained may be made more uniform.

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According to the design conditions, referring to FIG. 6, coffee beans passing through the first crushing roller 120 and the second crushing roller 130 between the second crushing roller 130 and the third crushing roller 170 A blocking film 190 may be provided so that the 10 is not lost.

That is, the blocking film 190 is discharged into the space between the first crushing roller 120 and the second crushing roller 130 and the coffee beans 10 passing through the second crushing roller 130 and the third crushing roller 170 In order to prevent the problem that the secondary grinding is not performed, the coffee beans 10 perform a function of inducing the primary grinding and the secondary grinding to be performed sequentially.

The blocking film 190 may be formed in various forms, but interlocking with the second grinding roller 130 blocks the movement path of the coffee beans 10, or interlocking with the third grinding roller 170 to move the coffee beans 10. It may be configured to block the path or to block the movement path of the coffee beans 10 by engaging both sides of the second crushing roller 130 and the third crushing roller 170.

Accordingly, the coffee beans 10 that are put into the inlet unit 110 first pass between the first crushing roller 120 and the second crushing roller 130, and then the first crushing roller 120 and the third pulverizing By inducing the second pass between the rollers 170, it is possible to obtain the green beans 11 having a uniform size.

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7 is a side view showing an embodiment of a separating unit and a dust collecting unit in the coffee bean grinder according to the present invention.

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The separating unit 200 performs a function of separating the coffee beans 10 pulverized in the pulverizing unit 100 into green beans 11 and shells 12.

This separating unit 200 performs a function of blowing the shell 12 by supplying air through the blowing fan 210 to the green beans 11 and shells 12 that are pulverized and separated from the pulverizing unit 100. .

That is, by supplying air to the case 150 so that the relatively light shell 12 is blown away, only the pure green beans 11 remain in the case 150.

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The dust collecting unit 300 performs a function of collecting only the shell 12 separated from the green beans 11 in the separating unit 200.

That is, by inhaling the shell 12 that is blown away by the blowing air supplied from the blowing fan 210, the shell 12 is completely removed from the green beans 11 so that only pure green beans 11 can be obtained.

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At this time, the separation unit 200 and the pulverization unit 100 will be described with reference to FIG. 7, by providing a vortex-type blowing air to the case 150 by a blowing fan 210 located above the case 150, Only the separated shell 12 is lifted upward, and the dust collecting unit 300 may be configured to suck and collect the lifted shell 12 by being provided on the upper side of the blowing fan 210.

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According to the design conditions, in the present invention, the dust collecting unit 300 is specified to suck and collect the shell 12 blown by using wind pressure, but a configuration using the property that the shell 12 sticks to the dust collecting plate using static electricity, etc. Of course, it can be made in various forms.

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8 is a side view showing another embodiment of a separating unit and a dust collecting unit in the coffee bean grinder according to the present invention.

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According to design conditions, the separating part 200 and the crushing part 100 may be provided in a side shape between the discharge part 140 and the case 150 as shown in FIG. 8.

That is, the green beans 11 and the peel 12 of the ground coffee beans 10 from the discharge unit 140 fall into the case 150 by blowing air supplied from the blowing fan 210, so that the green beans 11 are The case 150 may be dropped into the case 150 to be accommodated, and the shell 12 may be configured to be blown to the side and collected by suction through the dust collecting unit 300 provided on the opposite side.

As shown in FIG. 8, the separation unit 200 and the crushing unit 100 are provided in a lateral shape for the shell 12 to fall from the discharge unit 140 and to be carried toward the dust collection unit 300. It is suitable when the particle size of (11) is very small and crushed.

In other words, it is a configuration for discharging the shell 12 at the same time as being discharged from the discharge unit 140 instead of directly supplying air to the inside of the case 150, and by supplying air directly into the case 150, the particle size is It is possible to obtain only pure green beans 11 having a relatively small particle size by preventing small pulverized green beans 11 from flying away with the shell 12 and allowing only the shell 12 to be collected.

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9 is a side view showing another embodiment of a separating unit and a dust collecting unit in the coffee bean grinder according to the present invention.

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According to design conditions, the separating part 200 and the crushing part 100 may be provided in an inclined form from the discharge part 140 and the case 150 as shown in FIG. 9.

At this time, the case 150 is formed to have an inclined surface 151 having an inclined side so that the air supplied into the case 150 can be smoothly supplied, as shown in FIG. 9, so that the upper side is wide and the lower side is It is preferable to be made in the form of a narrow upper light lower hyeop.

That is, when the green beans 11 and the shell 12 of the ground coffee beans 10 from the discharge unit 140 fall and are accommodated in the case 150, the blowing fan 210 provided in an inclined shape is the case ( 150) Air is supplied to the inside, and the shell 12, which was accommodated with the green beans 11 in the case 150, is blown to the opposite side along the slope of the case 150 by the supplied air. By being sucked and collected by the dust collecting unit 300 provided in a diagonal shape on the opposite side of 210, only pure green beans 11 can be easily obtained.

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According to this configuration, the coffee bean grinder according to the present invention allows the coffee beans 10 to be easily separated into the green beans 11 and the peel 12 through the grinding unit 100, so that the peel 12 when coffee is extracted. ), so that you can enjoy its rich flavor.

In addition, in the process of grinding the coffee beans through the grinding unit 100, the coffee beans 10 pass between grinding rollers having different shapes to be ground, but grinding by the grinding roller is sequentially performed first and second. By being made of, it is possible to obtain the green beans 11 of a uniform size.

In addition, by supplying air to the ground coffee beans 10 through the grinding unit 100 to separate the separated peel 12 from the green beans 11, and collecting and removing the separated peel 12, coffee is When it is extracted, it removes mischief so that it can provide a rich and tasty coffee.

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In the above description, various embodiments of the present invention have been presented and described, but the present invention is not necessarily limited thereto, and those of ordinary skill in the technical field to which the present invention pertains may It can be seen that branch substitution, modification, and change are possible.

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10: coffee beans 11: green beans
12: shell
100: grinding unit 110: input unit
120: first grinding roller 121: horizontal groove
130: second crushing roller 131: grid-shaped groove
140: discharge unit 150: case
151: slope 160: first interval adjustment unit
170: third crushing roller 180: second interval adjustment unit
190: blocking film 200: separation unit
210: blower fan 300: dust collector

Claims (10)

A pulverizing unit 100 for pulverizing the coffee beans 10 to be input;
A separating unit 200 for separating the ground coffee beans 10 into green beans 11 and shells 12; And
Including; a dust collecting unit 300 for collecting only the shell 12 separated from the green beans 11 in the separating unit 200,
The crushing unit 100,
An input unit 110 into which the coffee beans 10 are put;
A first crushing roller 120 for pulverizing the coffee beans 10 put into the input unit 110;
A second crushing roller 130 provided to rotate in engagement with the first crushing roller 120;
A discharge unit 140 for discharging the ground coffee beans 10 while passing through the first grinding roller 120 and the second grinding roller 130 to be separated into green beans 11 and peel 12; And
Includes; a case 150 provided under the discharge unit 140 to accommodate the discharged green beans 11 and the shell 12,
The first crushing roller 120 is formed with a plurality of horizontal grooves 121 in the form of inwardly dug on the outer circumferential surface, the horizontal groove 121 is long in the longitudinal direction of the long axis of the first crushing roller 120 It is made in a narrow shape,
The second crushing roller 130 is configured to include a lattice-shaped groove 131 in the shape of which is dug inward on the outer circumferential surface, wherein the lattice-shaped groove 131 is formed in a diagonal shape with respect to the horizontal groove 121 Coffee bean grinder. delete delete delete The method according to claim 1,
The pulverizing unit 100 is a coffee bean grinder, characterized in that it comprises a first gap adjustment unit 160 for adjusting the interval between the first pulverizing roller 120 and the second pulverizing roller 130. The method according to claim 1,
The crushing unit 100 is configured to further include a third crushing roller 170 provided to rotate in engagement with the first crushing roller 120,
The third grinding roller 170 passes through the first grinding roller 120 and the second grinding roller 130, and the coffee beans 10 pass through the first grinding roller 120 and the third grinding roller 170. A coffee bean grinder, characterized in that it is provided under the second crushing roller 130 so as to. The method of claim 6,
The pulverizing unit 100 is a coffee bean grinder, characterized in that it comprises a second gap adjusting unit 180 for adjusting the interval between the first pulverizing roller 120 and the third pulverizing roller (170). The method of claim 6,
A blocking film 190 is provided between the second crushing roller 130 and the third crushing roller 170 so that the coffee beans 10 that have passed through the first crushing roller 120 and the second crushing roller 130 are not lost. Coffee bean grinder, characterized in that provided. The method according to claim 1,
The separating unit 200 is a coffee bean, characterized in that it blows the shell 12 by supplying air to the green beans 11 and shells 12 that are pulverized and separated from the pulverizing unit 100 through a blowing fan 210 grinder. The method of claim 9,
The dust collecting unit 300 is a coffee bean grinder, characterized in that the peel 12 is removed from the green beans 11 by inhaling the peel 12 flying through the blowing fan 210.

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