KR102424379B1 - Bean grinding device - Google Patents

Abstract

The present invention relates to a bean grinding device. More specifically, the present invention relates to the bean grinding device that is realized by comprising a hopper, a grinding blade rotatably provided inside the hopper, and a driving means that rotates the grinding blade, consists a total of four grinding blades and enables each grinding blade to rotate while being maintained in a staggered shape, and moreover, consists of a flat-shape grinding blade and a bent-shape grinding blade to increase an efficiency of bean grinding, thereby being designed to grind the beans more quickly and evenly.

Description

Bean Grinder {BEAN GRINDING DEVICE}

The present invention relates to a bean grinder, and more particularly, it comprises a hopper, a grinding blade rotatably provided inside the hopper, and a driving means for rotating the grinding blade, and the grinding blade consists of a total of four. However, each grinding blade is designed to rotate while maintaining a crossed shape, and furthermore, it consists of a flat grinding blade and a bent grinding blade to increase the bean grinding efficiency and to grind beans more quickly and uniformly. It is about the bean grinder.

Beans contain so many nutrients that they can be called vegetable meat. Recently, a lot of health foods using soybeans have been processed and produced, and one of these processed foods is tofu. In order to process and produce tofu using soybeans, the soybeans must be finely ground.

Therefore, various devices for grinding beans more effectively, quickly and accurately are being developed.

As a related prior art, there is a registered utility model No. 20-0159726 "bean grinder",

The prior art relates to a bean grinder for crushing and discharging input beans by rotation of a pair of upper and lower crushing stones by applying the principle of a millstone, in an apparatus for crushing input beans, a support part, and an approximately annular ring on the upper part of the support part a body having a crushing cylinder piece that is formed as a rotatably seated movable crushing stone therein, while forming a crushing space and an outlet communicating therein; An inserter consisting of a fixed cylindrical piece that is inserted into the upper part of the pulverized cylindrical piece and joined together, and a fixed cylindrical piece having a fixed crushed stone on its bottom surface, and a hopper extended on the fixed cylindrical piece; and a drive motor installed in the support part, the shaft of which protrudes through the upper part, and is fixed to the movable crushing stone to transmit a rotational force, whereby the present invention installs a pair of crushing stones up and down and crushing the lower side It relates to a bean grinder that prevents beans from accumulating in the crushing space by rotating the stone so that the beans are crushed in the space of the upper and lower parts of the crushed stone.

However, the prior art adopts a method of crushing beans like a millstone, but in the case of crushing beans, it cannot be rotated at high rotation, so it takes a lot of time to grind beans.

Also, there is a registered patent No. 10-1732792 "Tofu Bean Grinder",

The prior art includes a body including a space formed inside, an outlet formed on one side and a guide surface connected into the outlet, a lid that is openly and closedly coupled to the upper portion of the main body, and penetrates through the bottom of the main body to be rotatable A rotating member installed, a supporting plate installed on the rotating member, a rotating crushing stone seated on the supporting plate, a rotating blade coupled to an upper end of the rotating member, and located above the rotating crushing stone, the rotating blade is inserted Tension means having a fixed crushing stone having a working space formed in the center to become it, and an inlet connected to the fixed crushing stone, and coupled to the lid in order to act for a tension state at a position where the fixed crushing stone and the rotary crushing stone correspond to each other Is composed of, the tension means is guided through the center of the upper surface of the lid, a rod member having an inlet formed inward and a fixing part connected to the bottom of the rod part further comprising a rod member, and the fixing part of the rod member is fixed to the bottom surface of the rod member. It characterized in that it consists of a fixed plate installed to fix or support the crushed stone, a fixed shaft connecting the rod member and the lid, and an elastic member installed on the outer peripheral surface of the fixed shaft to impart a tension function to the rod member.

However, the prior art also adopts a method of squeezing and crushing beans like a millstone like the above-mentioned prior art, so the working time is inevitably delayed, and a large amount of beans cannot be put in at once, so the worker waits. There is a problem in that soybeans must be subdivided and added.

Another prior art is Utility Model Publication No. 20-1990-0008171 "bean grinder",

The prior art relates to a soybean grinder that grinds beans by rotating a rotating body by supplying water and soybeans at a certain ratio, so that it is easy to grind by a fixed crushing body and a rotating rotating body, and opening and closing of the inside is easy It relates to a soybean grinder that can be easily cleaned and can be more effectively crushed by adjusting the distance between the crushing body and the rotating body,

Patent Publication No. 10-2020-0004314 "Soybean grinding apparatus" discloses a main body; a grinding burr mounted in the main body, wherein the grinding burr includes a non-driven burr and a rotationally driven burr, the rotationally driven burr A rotational shaft serving as a rotational center of the freezing; A drive motor operatively coupled to the rotationally driven burr; A pulverized material flow path formed in the main body; and an outlet trough having an inlet and an outlet in communication with the pulverized material flow path, the outlet trough defining a longitudinal axis, the longitudinal axis angled with respect to the axis of rotation of the rotationally driven burr.

However, in the case of these two prior arts, the method of grinding beans is similar to the grinding method rather than the actual grinding, which means that a large amount of beans cannot be crushed at once, and the working time is inevitably long, In order to pulverize a large amount of beans, there is a hassle in that the operator has to wait for the beans to be input.

Therefore, the present invention has been devised to solve the above problem,

A hopper having an input part formed therein, and a grinding blade and a driving means provided in the hopper to grind beans by rotational force, wherein a blade part is formed on at least one surface of the grinding blade, and a plurality of grinding blades are overlapped with each other An object of the present invention is to provide a soybean grinder that can improve grinding power as it is provided.

In addition, by coupling the plurality of grinding blades to the driving member, it is possible to separate the grinding blades individually during washing, thereby increasing convenience and providing a hygienic bean grinder.

Furthermore, the shape of this grinding blade is configured in a diamond shape to increase the grinding efficiency, and a total of four are overlapped with each other. is intended for

In addition, an object of the present invention is to provide a soybean grinder that is provided with a discharge unit for discharging crushed beans, and prevents foreign substances or coarse-grained beans from being discharged together by introducing a sieve member to this discharge unit.

In order to achieve the above object, the bean grinder according to the present invention

a hopper having an open upper portion to put beans to be pulverized;

a grinding blade rotatably provided in the hopper to grind the beans;

a driving means comprising a driving member provided on the grinding blade and a driving motor for rotating the driving member;

is made, including

The grinding blade is

A plurality of overlapping each other, the central portion of each grinding blade is connected to the driving member, and a blade portion is formed on at least one side of each grinding blade, so that the grinding blade can be rotated to grind the beans. .

As described above, the bean grinder according to the present invention

It consists of a hopper and a grinding blade rotatably provided inside the hopper and a driving means, and the grinding blade is configured in a rhombus shape, but a plurality of overlapping arrays are arranged to more effectively and quickly grind beans.

Specifically, by forming sharp portions on both ends of the grinding blade and blade portions on both opposite sides, it is possible to rapidly grind beans during high-speed rotation,

The grinding power can be increased by mixing the flat grinding blade and the bending grinding blade.

By combining each grinding blade in a staggered state, when the grinding blade wears out, only one grinding blade can be separated and replaced, reducing maintenance costs.

As they are individually separated, there is an effect that hygienic work is possible by increasing the ease of washing.

In addition, a sieve member is further provided in the discharge part from which the pulverized beans are discharged, so that the less pulverized beans are caught by the sieve member, so that a more uniform result can be obtained.

1 is an overall cross-sectional view of a bean grinder according to the present invention;
Figure 2 is a detailed view of the combination of the grinding blade of the bean grinder according to the present invention
3 is a detailed view of the discharge part of the bean grinder according to the present invention
4 to 7 are detailed views of each of the grinding blades of the bean grinder according to the present invention
8a and 8b is a modified example of the bean grinder according to the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can have various changes and can have various forms, implementation examples (態樣, aspects) (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

In each drawing, the same reference sign, particularly the number of the tens and one digit, or the reference numerals having the same tens, one, and alphabet, indicates a member having the same or similar function, and unless otherwise specified, each of the figures in the drawings The member indicated by the reference sign may be understood as a member conforming to these standards.

In addition, in each drawing, in consideration of the convenience of understanding, the size or thickness is exaggeratedly large (or thick) small (or thin) or simplified, but the protection scope of the present invention is limited by this. it shouldn't be

The terminology used herein is only used to describe a specific embodiment (aspect, aspect, aspect) (or embodiment), and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as comprises or consists of are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application. does not

The bean grinder (A) according to the present invention includes a hopper 10, a grinding blade 20 provided in the hopper 10, and a driving means 30 provided to rotate the grinding blade 20. To be made, each configuration will be described in more detail with reference to FIGS. 1 to 3 .

Although the present invention is a device mainly used for grinding beans, it can also be used for grinding other grains, other vegetables, fruits, etc. other than beans. It shall be able to include all of the grains and vegetables of

As shown in FIG. 1 again, the hopper 10 is a cylindrical housing with an open top, and a crushing part 11 for pulverizing beans by putting beans therein is formed, and the open top is on the cover 12 . to open and close by opening and closing the cover 12 to put beans in, and to close the cover 12 during the grinding process to prevent foreign substances from entering the inside or the beans from being separated by repulsive force during grinding. , The cover 12 is further provided with a handle member 121 to improve the operator's ease of use.

The hopper 10 must secure a space for installing the driving means 30, and for this purpose, a separate frame member 14 may be provided to be fixed to the installation surface, and the hopper 10 may be installed in the frame. It is seated and fixed on the upper member 14 , and the driving means 30 is provided inside the frame member 14 .

A grinding blade 20 is rotatably provided inside the hopper 10, and the driving means 30 is provided to rotate the grinding blade 20, and with respect to the driving means 30 To explain,

The driving means 30 includes a driving member 31 to which the grinding blade 20 is coupled, and a driving motor 33 for rotating the driving member 31 .

First, the driving member 31 has a non-circular cutting part 311 formed at an upper portion, and a first toothed member 313 is coupled to the lower portion. The driving member 31 penetrates the hopper 10 from the lower part of the hopper 10 and is made to be located inside the crushing unit 11, and the crushing unit 11 upper part, that is, the hopper 10 ) The grinding blade 20 is coupled to a portion located inside, so that when the driving member 31 rotates, the grinding blade 20 can rotate together.

At this time, in order to prevent idling of the grinding blade 20, a non-circular cutting part 311 is formed on all or the upper part of the driving member 31, and this non-circular cutting part 311 improves manufacturing convenience. It is preferable that the cross-sectional shape is configured to form a quadrangle.

A driving motor 33 is provided on one side of the driving member 31, and a second toothed member 333 is provided at the end of the drive shaft 331 of the drive motor 33, and the first toothed member ( 313 ) and the second toothed member 333 are connected to each other through a pulley 35 .

At this time, the pulley 35 may be made of various materials such as chains and rubber belts, and the scope of the rights should not be construed as being limited thereto.

That is, when the driving means 30 operates according to the above configuration, the driving shaft 331 rotates, and the driving member 31 connected to the driving shaft 331 and the pulley 35 rotates, and the driving member (31) As the grinding blade 20 coupled to the upper part rotates, it is possible to grind the beans put into the hopper 10.

Referring to FIGS. 1 and 4 to 7 , the grinding blade 20 used in the present invention will be described in more detail. The plurality of grinding blades 20 overlap each other and the central portion of each grinding blade 20 . (21) has a structure coupled to the upper portion of the driving member (31).

In more detail, each of the crushing blades 20 has a planar shape and a rhombus shape having sharp ends 23, and the blade parts 25 are formed on opposite sides of the rhombus shape. characterized. Here, the blade part 25 refers to a part polished to grind beans, and the blade part 25 is formed on the side colliding with the beans, based on the rotation direction of the grinding blade 20 . As it rotates with the central part 21 of the crushing blade 20 as a rotation axis, a blade part 25 is formed on any two sides facing each other among the four sides, and the other two sides are the blade part 25 is done so that it does not form.

The grinding blade 20 has a coupling through-hole 211 formed in the central portion 21 to be coupled to the driving member 31 , and the coupling through-hole 211 is formed in the upper portion of the driving member 31 , that is, the Although it has the same shape as the circular cutting part 311, the coupling through-hole 211 is formed by rotating for each crushing blade 20 according to the coupling position of the crushing blade 20 to be described later.

In more detail with respect to the grinding blade 20, the grinding blade 20 is largely composed of a flat grinding blade 20 and a bent grinding blade 20, and more specifically, the driving member 31 ) from the bottom according to the order in which it is coupled to a bending type first crushing blade (20A), a flat type second crushing blade (20B), a flat type third crushing blade (20C), and a bending type fourth crushing blade (20D). .

At this time, all of the first to fourth grinding blades 20D have a planar shape of a rhombus, and as mentioned above, a blade portion 25 is formed on either side of the driving member 31 . The shape of the coupling through hole 211 formed in each of the crushing blades 20 according to the order in which they are coupled to each other is made of a shape sequentially rotated 45 degrees in any one direction, and the first to first When the four grinding blades 20D are inserted sequentially, each of the grinding blades 20 is coupled in a shape shifted from each other, thereby increasing the grinding efficiency of beans.

Again, among the grinding blades 20, the first grinding blade 20A and the fourth grinding blade 20D are bent grinding blades 20, and the second and third grinding blades 20C are flat grinding blades ( As 20), the bent grinding blade 20 has a shape in which bent parts 27 are formed on both sides so that the central part 21 and the pointed part 23 are not located on the same plane. A type first crushing blade 20A, FIG. 5 is a flat type second crushing blade 20B, FIG. 6 is a flat type third crushing blade 20C, and FIG. 7 is a bending type fourth crushing blade 20D. will be.)

At this time, the bending directions of the first and fourth crushing blades 20A and 20D of the bent type respectively coupled to the lower and upper portions of the flat second crushing blade 20B and the third crushing blade 20C are opposite to each other. are coupled to face the direction, more precisely, the bending direction of the first crushing blade 20A is in the downward direction, and the bending direction of the fourth crushing blade 20D is formed in the upward direction, which is the bean As it means that the height of the pulverizing blade unit 25 is coupled to be different for each pulverizing blade 20, the effect of increasing the pulverization rate can be expected.

In addition, the lower portion of the first crushing blade (20A) is coupled to the driving member (31), the bean residue is further provided with a cap member (16) to prevent the gathering in the lower portion of the first crushing blade (20A), , the shape of the shade member 16 has an inclined surface to correspond to the bent portion 27 formed in the first crushing blade 20A so as to block the lower portion of the central portion 21 of the bent first crushing blade 20A. It is made in the shape of a truncated cone.

As shown in Figures 1 and 3, the hopper 10 is formed with a discharge part 18 for discharging the crushed soybeans, the discharge part 18 is made so that the discharge line can be coupled, , the discharge unit 18 may be further provided with a sieve 173 to block the discharge of unpulverized beans or foreign substances.

That is, as only beans ground to a particle size passing through the sieve 173 are discharged, more perfectly pulverized beans can be obtained,

In general, when the beans are crushed, by putting a fluid such as water together and discharging it, it is also possible to further introduce a line valve to the discharge line coupled to the discharge unit 18 to control the discharge amount. should not be construed as limiting.

More specifically, a prevention plate 17 is further provided on the lower inner side of the hopper 10 to prevent beans from flowing into the gap between the driving member 31 and the hopper 10 when the beans are crushed. A discharge hole 171 communicating with the discharge unit 18 is formed in the prevention plate 17, and the sieve 173 is coupled to the discharge hole 171 to discharge only perfectly pulverized beans. made to be possible

In addition, the hopper body is provided with a cover to be detachable up and down by a one-touch coupling block, and the one-touch coupling block is provided on the cover as shown in FIGS. A first block (B1) provided with a fixed arm (B13), a fitting groove (B21) provided in the hopper and into which the first block (B1) is introduced, and a fitting groove (B21) provided in the fitting groove (B21), the fixed arm (B13) A second block (B2) having an inlet groove (B23) formed therein, and a pull-in prevention weight (B33) provided in the first block (B1) to prevent the retraction of the fixed arm (B13) and the pull-in prevention weight (B33) ) Inducing elevating and lowering and pulling-in prevention means including a handler (B31) hingedly coupled to the first block (B1) and a wire (B35) connecting the handler (B31) and the pull-in prevention weight (B33) (B3) comprising,

When the first block (B1) is inserted into the fitting groove (B21) and the handler (B31) is operated, the inlet prevention weight (B33) moves between the pair of fixed arms (B13) while moving between the pair of fixed arms (B13). A fixed arm (B13) is inserted into the inlet groove (B23) to fix the first block (B1) to the second block (B2), and a pull-in prevention weight (B33) is positioned between the pair of fixed arms (B13). It is characterized in that it does not allow the retreat of the pair of fixed arms (B13).

When described in more detail with respect to each configuration with reference to the drawings below,

First, the first block (B1) and the second block (B2) are not shown in a detailed perspective view in the drawing, but they are all made of rectangular blocks,

First, the second block (B2) is provided in a hopper, and a fitting groove (B21) into which the first block (B1) is introduced is formed in the center, and an inlet groove (B23) is formed on both sides of the fitting groove (B21). is formed, and the inlet groove B23 is provided at a position corresponding to the position of the fixed arm B13 when the first block B1 is inserted into the fitting groove B21.

Again, the first block (B1) is a rectangular block as mentioned above, the lower part is made to be inserted into the fitting groove (B21), as shown in the figure, in the center of the T-shaped T-shaped space (B11) is formed, and a withdrawal path B12 communicating with the T-shaped space portion B11 is formed that is open to both sides of the second block B2, and at the center of the withdrawal path B12, a pull-in prevention weight to be described later A receiving portion (B335) provided with (B33) is formed.

First, the fixed arm (B13) is described. The first block (B1) is provided with a fixed arm (B13) provided to protrude from both sides, the fixed arm (B13) is provided in the withdrawal path (B12), The first block (B1) protrudes from both sides by the operation of the pull-in prevention weight (B33) so that it can be fitted into the inlet groove (B23).

A support wing B131 is further provided on the outside of the fixed arm B13, respectively, and the return elastic body B133 extrapolated to the fixed arm B13 is caught by the edge of the support wing B131 and the first block B1. It is provided between the jaws and is made to receive elastic force so that the fixed arm B13 is restored in the inner direction of the first block B1, and when the first block B1 is inserted or removed from the second block B2, the fixed arm B13 ) does not protrude so that the operation can be performed smoothly.

In addition, a corresponding inclined portion B135 is further provided at one end of the inner end of the fixed arm B13, which is to naturally push the fixed arm B13 to both sides when the pull-in prevention weight B33, which will be described later, moves.

Handlers B31 are further provided on both sides of the first block B1, more precisely, on both upper sides of the first block B1 according to FIG. ), as one configuration, below, the intrusion prevention means (B3) will be described in more detail.

The pull-in preventing means (B3) is provided in the first block (B1) to protrude the pair of fixed arms (B13) to both sides, and then the pull-in prevention weight (B33) to prevent their retreat, and the first A handler (B31) hinged to the block (B1), and a wire (B35) connecting the handler (B31) and the pull-in prevention weight (B33).

First, as mentioned above, the anti-retraction weight (B33) is seated in the receiving part (B335), and is located in the lower portion between the pair of fixed arms (B13) with reference to FIG. 8A, and the pull-in prevention weight (B33) An entry slope portion (B331) in close contact with the corresponding slope portion (B135) is provided at the end of the accommodating portion (B335), and a compression spring (B333) for supporting the entry prevention weight (B33) is further provided. have.

The compression spring (B333) is a spring having an elastic force in the direction of restoring the pull-in prevention weight (B33), wherein the restoring direction means the position of the state when the fixed arm (B13) does not protrude, as shown in FIG. 8A . .

Therefore, when the pull-in prevention weight (B33) moves between a pair of fixed arms (B13), as shown in FIG. 8B, the fixed arms (B13) are naturally spread apart by the entry guide part and the corresponding inclined part (B135) to the first block ( B1) is protruded to both sides, and unless the position of the anti-seismic weight is changed, the fixed arms (B13) cannot retreat to the inside again, thereby increasing the fixing force of the first block (B1) and the second block (B2). can keep

Again, the handler B31 is a member hinged through the first hinge portions B311 on both upper sides of the first block B1 based on the direction of FIG. 8A, and the handler B31 is a member as shown in FIG. 8B One side of the first block (B1) can be moved so as to be in close contact with the lateral direction.

The handler (B31) is a member for controlling the movement of the pull-in prevention weight (B33), the handler (B31) and the pull-in prevention weight (B33) are connected by a wire (B35) as shown in the figure, and the wire (B35) ), a first roller (B15) is provided at the inner edge of the T-shaped space (B11) to support the wire (B35), and the end of the T-shaped space (B11), that is, A second roller B16 is also provided in the portion where the wire B35 is exposed.

With the above configuration, as shown in FIG. 8B , when the first block B1 is inserted into the second block B2 and the pair of handlers B31 are folded, that is, the first hinge portion is displaced downward along the axis. When the wire (B35) is pulled to move the pull-in prevention weight (B33), due to the movement of the pull-in prevention weight (B33), the pair of fixed arms (B13) is the first block (B1) to both sides It protrudes and is fitted into the inlet groove (B23) to prevent the first block (B1) from being separated from the second block (B2).

At this time, in order to maintain the folded state of the handler (B31), the first block (B1) and the handler (B31) have first magnets (M1) respectively on surfaces that are in close contact with each other based on the folded state of the handler (B31). ) and the second magnet (M2), and prevent the handler (B31) from being arbitrarily unfolded so that they can be fixed by manpower, thereby preventing the retraction prevention weight (B33) from returning.

In addition, in order to separate the first block (B1) from the second block (B2), the handler (B31) must be unfolded again in reverse, and the handler (B31) is firmly attached to the first block (B1) by magnetism. As it is attached, it is difficult for the user to unfold the handler B31, and the present invention further includes a holding handle B313 hinged to the second hinge part B312 in the handler B31 to compensate for this. are doing

Therefore, after folding the holding handle (B313) as shown in FIG. 8b, the user can easily open the handler (B31) by holding the holding handle (B313), and when the handler (B31) is unfolded, the pull-in prevention weight (B33) ), the pull-in prevention weight (B33) is returned to the receiving part (B335) as shown in FIG. 8A by the elastic restoring force of the compression spring (B333), and the pair of fixed arms (B13) is a return elastic body (B133). It is drawn into the first block (B1) by the elastic force, and maintains a state in which the first block (B1) can be separated from the second block (B2).

That is, according to the present invention, by the one-touch coupling block (TB) as described above, the cover can be more easily fixed and separated from the hopper, and the effect of greatly improving the usability can be expected.

In addition, in the above description of the present invention, with reference to the accompanying drawings, a bean grinder having a specific shape, structure and configuration has been mainly described, but the present invention is capable of various modifications, changes and substitutions by those skilled in the art, and such modifications, changes and Substitution should be construed as falling within the protection scope of the present invention.

A: Bean Grinder
10: hopper 11: crushing part
12: cover 121: handle member
14: frame member 16: shade member
17: prevention plate 171: exhaust hole
173: sieve 18: discharge part
20: grinding blade 21: central part
211: coupling through hole 23: pointed part
25: blade part 27: bent part
20A: 1st grinding blade 20B: 2nd grinding blade
20C: 3rd grinding blade 20D: 4th grinding blade
30: driving means 31: driving member
311: non-circular cutting part 313: first toothed member
33: drive motor 331: drive shaft
333: second toothed member 35: pulley

Claims (4)

a hopper with an open crushing part formed at the top to put the beans to be crushed;
a grinding blade rotatably provided in the hopper to grind the beans;
a driving means comprising a driving member provided on the grinding blade and a driving motor for rotating the driving member;
is made, including
The grinding blade is
A plurality of overlapping each other, the center of each grinding blade is connected to the driving member, and a blade part is formed on at least one surface of each grinding blade, so that the grinding blade is rotated to grind the beans,

A cover is provided on the upper part of the open crushing part of the hopper, and the cover is detachable from the hopper by a one-touch coupling block, and the one-touch coupling block is
A first block provided on the cover and having a pair of fixed arms protruding from both sides;
A fitting groove provided in the hopper and into which the first block is drawn, and a second block provided in the fitting groove and having an inlet groove through which the fixed arm is drawn in;
An anti-retraction weight provided in the first block to prevent retreat of the fixed arm, a handler hingedly coupled to the first block and inducing the elevation of the pull-in prevention weight, and a wire connecting the handler and the anti-retraction weight It consists of a means to prevent entry,
The first block has a T-shaped space in the center, and a withdrawal path communicating with the T-shaped space and open on both sides, and a receiving portion provided with a pull-in prevention weight is formed in the center of the withdrawal path, and the fixed arm is It is provided at the exit,
A support wing is provided on the outside of the fixed arm having a corresponding inclination portion on the inner end, respectively, and a return elastic body extrapolated to the fixed arm is provided between the support wing and the edge locking jaw of the first block,
The pull-in prevention weight of the pull-in prevention means is supported by a compression spring provided in the receiving part, and has an entrance inclined part in close contact with the corresponding inclined part of the fixed arm, and the handler is hinged through a first hinge part on both upper sides of the first block. is connected,
After inserting the second block of the first block, when a pair of handlers displaces the first hinge part downward on the axis, the pull-in prevention weight rises as the wire is pulled, and a pair of fixed arms protrude to both sides of the first block by the movement of the pull-in prevention weight. Bean grinder, characterized in that the first and second blocks are prevented from being separated by being inserted into the inlet groove. The method of claim 1,
In a state in which the handler is folded, first and second magnets are respectively provided on the contact surfaces of the handler and the first block to maintain the folded state of the handler by mutual attraction,
Bean crusher, characterized in that the first and second rollers are respectively provided on the inner edge and upper portion of the T-shaped space of the first block to support the wire. 3. The method of claim 1 or 2,
The pulverizing blade is made of a rhombus shape having a sharp point at both ends, and a blade section is formed on opposite sides of the rhombus shape,
The hopper is further provided with a discharge part to which a discharge line for discharging the crushed beans is connected, the bean grinder characterized in that the discharge part is further provided with a sieve member. 4. The method of claim 3,
The grinding blade is
Bean grinder, characterized in that according to the order of coupling to the driving member, the bending type first crushing blade, the flat type second crushing blade, the flat type third crushing blade, and the bending type fourth crushing blade are coupled in order.

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