WO2018079092A1 - Electric powder milling machine - Google Patents

Abstract

The electric powder milling machine according to the present disclosure is provided with: an input unit into which material to be pulverized is input and which has an opening for feeding the material to be pulverized into a rough powder milling unit; the rough powder milling unit for roughly pulverizing the material to be pulverized that is fed from the input unit; a fine powder milling unit for more finely pulverizing the material to be pulverized that has been pulverized by the rough powder milling unit; and an adjustment unit for adjusting the amount of the material to be pulverized that is introduced to the fine powder milling unit. Thus, it is possible to provide an electric powder milling machine that is small and has good usability.

Description

Electric grinder

The present disclosure relates to a small electric grinder for home use that forms grains, spices, and the like into powder. In particular, in addition to grains and spices, foods that contain a large amount of oil such as cocoa beans are ground and desired. The present invention relates to an electric grinder that can be formed into a state.

In recent years, various types of household grinders have been commercialized in order to produce ingredients such as udon, soba and bread by milling at home. In such a household grinder, it is important that it is small and not disturbing, requires little labor from the user, can be easily milled, and is not expensive. .

Also, as such a grinding machine, there is a millstone using natural stone. Since this conventional grinder grinds and grinds grains using the weight of the mortar itself, it is large and heavy, and a large amount of labor is required for use. For this reason, although it is not preferable as a household grinder, a stone mill formed of natural stone such as granite has a configuration in which heat generation during pulverization is suppressed. Therefore, the powder milled with a stone mill is useful as a delicious dish.

As an example of solving the problems in the manual grinder as described above, an electric grinder has been proposed (see Patent Documents 1 and 2). In the electric grinder disclosed in Patent Documents 1 and 2, the object to be crushed in the hopper part is a two-stage structure of a coarse grinding part and a mortar-shaped fine grinding part. It is the structure pulverized and milled.

JP 2007-185557 A JP 2014-083517 A

The conventional electric grinder uses a natural stone millstone that can suppress heat generation during pulverization, which is an advantage of a manual grinder, and the pulverization mechanism has an electric two-stage structure. The size can be reduced, and the configuration does not require the user's effort to grind.

However, in the conventional electric grinder, when the object to be crushed is put into the hopper, the object to be crushed is directly sent to the pulverizing mechanism as it is. In some cases, the object to be pulverized stays in the pulverization region and cannot be milled to a desired state. In addition, when ingredients that contain a large amount of oil such as cocoa beans are used as a material to be crushed and used in a conventional electric grinder, the oil contained in the beans makes the oily liquid and the crushing operation continues. Therefore, it was difficult to continuously grind (grind).

The purpose of the present disclosure is to provide a compact and easy-to-use electric grinder that can grind the material to be pulverized to a desired state even if the grinding operation is continuously performed on various materials to be ground. It is to be.

In order to achieve the above object, the electric grinding machine of the present disclosure is configured as follows.

The electric grinder according to one aspect of the present disclosure is configured to roughly pulverize the material to be pulverized, to which a material to be pulverized is charged, an input unit having an opening for sending the material to be pulverized to the coarse powder grinder, and the material to be pulverized sent from the input unit. The coarse powder grinder, a fine powder grinder that finely grinds the material to be crushed by the coarse powder grinder, and an adjustment unit that adjusts the amount of the material to be crushed into the fine powder grinder, Is provided.

According to the present disclosure, a compact and easy-to-use electric grinder can be provided that can grind the material to be pulverized into a desired state even if the grinding operation is continuously performed on various materials to be pulverized. can do.

The perspective view which shows the whole electric flour grinder of Embodiment 1 which concerns on this indication. The figure which shows the cross section which shows the internal structure of the electric grinding machine of Embodiment 1. 1 is an exploded perspective view of the electric grinder of the first embodiment. The perspective view which looked at the grinding | pulverization cover part of the grinding | pulverization unit in the electric flour grinder of Embodiment 1 from upper direction. The perspective view which looked at the grinding | pulverization cover part of the grinding | pulverization unit in the electric powder grinding machine of Embodiment 1 from the downward direction The perspective view which shows the stationary side housing, introduction adjustment part, etc. in the electric grinding machine of Embodiment 1 The perspective view which looked at the stationary side housing and the upper mill part in the electric grinder of Embodiment 1 from the upper part The perspective view which looked at the stationary side housing and the upper mill part from the lower part in the electric grinding machine of Embodiment 1 The perspective view which looked at the introduction adjustment part, the outer surface mortar part, the conveyance mechanism, and the lower mortar part in the electric grinding machine of Embodiment 1 from the upper side The perspective view which looked at the introductory adjustment part, the outer surface mortar part, the conveyance mechanism, and the lower mortar part from the lower part in the electric grinding machine of Embodiment 1 The figure which shows the cross section which showed typically the arrangement | positioning relationship between the upper mill part and the lower mill part in the electric grinding machine of Embodiment 1. Sectional drawing which showed typically the upper mill part and lower mill part of the fine grinding part in the electric milling machine of Embodiment 2 which concerns on this indication The figure which shows the cross section which showed typically the cooling mechanism of another structure in the electric grinding machine of Embodiment 2. FIG. The perspective view which showed the structure of the grinding | pulverization part in the electric powder grinder of Embodiment 3 which concerns on this indication. The perspective view which showed the structure of the grinding | pulverization part in the electric powder grinder of Embodiment 3 which concerns on this indication.

The electric powder grinder according to the first aspect of the present disclosure includes an input unit having an opening for feeding an object to be crushed and feeding the object to be crushed to a coarse grinder, and the object to be crushed sent from the input unit. Adjust the amount of the coarsely ground portion to be coarsely pulverized, the finely ground portion to be finely pulverized the ground material to be ground in the coarsely ground portion, and the amount of the ground material to be introduced into the finely ground portion. An adjustment unit.

The electric grinder of the first aspect configured as described above can pulverize the object to be pulverized into a desired state even if the grinding operation is continuously performed on various objects to be pulverized. A compact and easy-to-use grinder.

The electric grinder of the 2nd mode concerning this indication is the above-mentioned 1st mode. The above-mentioned adjustment part sends the above-mentioned ground material sent from the above-mentioned input part to the above-mentioned coarse grinding part for every predetermined amount. A configuration including an introduction adjusting unit may be used.

The electric grinder of the second aspect configured in this way can pulverize various objects to be crushed into a desired state.

According to a third aspect of the present invention, in the electric power grinder according to the first aspect or the second aspect, the adjustment unit may be configured such that the adjustment unit is configured to pulverize the coarse powder grinder to the fine grinder. The conveyance path which comprises the conveyance path which prescribes | regulates the introduction amount of the said to-be-ground material from the said coarse grinding part to the said fine grinding part may be sufficient.

In the electric grinder of the third aspect configured as described above, the object to be crushed discharged from the coarse grinding portion passes through the conveyance path of the conveyance mechanism, so that it stays in the stage before being fed into the fine grinding portion. The fine grinding operation can be performed smoothly and the fine grinding operation can be performed.

In the fourth aspect of the electric mill according to the present disclosure, in the third aspect, the conveyance path of the pulverized material from the coarse powder grinder to the fine grinder is configured in a spiral shape. It may be.

In the electric grinder of the fourth aspect configured as described above, the material to be crushed discharged from the coarse grinder is smoothly fed into the fine grinder without passing through the long spiral path. It is.

According to a fifth aspect of the present invention, there is provided an electric grinding machine according to any one of the first to fourth aspects, wherein the coarsely ground portion and the fine grinding portion of the object to be crushed are the same. It is good also as a structure further provided with the mechanism which adjusts a particle size.

In the electric grinder of the fifth aspect configured as described above, an appropriate grinding operation can be performed on various types of objects to be crushed.

The electric mill according to the sixth aspect of the present disclosure is the fine powder according to any one of the first to fifth aspects, according to the viscosity characteristic of the oil content of the object to be crushed. You may comprise so that temperature adjustment may be carried out in a grinding part.

The electric grinder of the sixth aspect configured as described above can perform temperature adjustment in the production of fine powder in the fine grinder, so that it is accurate at an appropriate temperature according to the type of object to be crushed. A powder having a desired particle size can be produced by performing a high grinding operation.

In the electric power grinder according to the seventh aspect of the present disclosure, in the aspect according to any one of the first aspect to the sixth aspect, the fine grinding part is pulverized by the coarse grinding part. An introduction region into which the material to be crushed is introduced and a discharge region into which the material to be crushed is finely crushed and discharged, and the temperature of the introduction region is lower than the temperature of the oil content of the material to be crushed. The temperature of the discharge region may be higher than the temperature of the oil content of the object to be crushed.

The electric grinder of the seventh aspect configured as described above, for example, when cocoa beans containing a large amount of oil are to be pulverized, suppress elution of oil from cocoa beans in the introduction region, Prevents cacao bean powder from sticking together. Then, as the temperature approaches the discharge area, the temperature rises and the oil content of the cocoa beans is melted to become a liquid and is smoothly discharged from the finely ground portion.

The electric grinding machine of the eighth aspect according to the present disclosure is such that, in the fine grinding part of the seventh aspect, the gap between the surfaces of the introduction area in which the material to be crushed is ground is the discharge area. The object to be crushed may be wider than the gap between the surfaces to be ground.

The electric grinder of the eighth aspect configured in this way makes it easy for the object to be crushed to be fed to the grinding surface in the fine grinding portion, and the temperature during the grinding operation on the grinding surface is in the introduction region. It can be lowered and higher as it approaches the discharge area. In this way, by controlling the temperature on the ground surface of the fine grinding portion, it is possible to perform an optimum grinding operation for various types of objects to be ground.

The electric grinding machine of the ninth aspect according to the present disclosure may further include a cooling mechanism for cooling the fine grinding part in any one of the first to eighth aspects. Good.

The electric grinder of the ninth aspect configured as described above can adjust the temperature in the production of fine powder in the fine grinder, and is accurate at an appropriate temperature according to the type of object to be crushed. A powder having a desired particle size can be produced by performing a high grinding operation.

In the electric grinding machine of the tenth aspect according to the present disclosure, the coarse grinding part in the first aspect may be configured by a helical screw part and a cylindrical grinding drum.

The electric grinder of the tenth aspect configured in this way can make the coarse grinder simple, save space in the grinder mechanism, and achieve downsizing of the entire device. can do.

The electric grinding machine of the eleventh aspect according to the present disclosure is configured such that the fine grinding part in the tenth aspect is ground on a cylindrical surface by moving the object to be crushed from top to bottom. May be.

The electric grinder of the eleventh aspect configured as described above has a configuration capable of reducing the size in the width direction as a fine grinding mechanism to save space, and achieves downsizing of the entire apparatus. can do.

Hereinafter, an embodiment according to an aspect of the electric grinding machine of the present disclosure will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same element and the description may be abbreviate | omitted when description overlaps. Further, in the drawings, each component is schematically illustrated mainly for the sake of easy understanding.

The embodiments described below are examples of the electric grinding machine of the present disclosure. For example, numerical values, shapes, configurations, and the like shown in the embodiments are examples, and the present disclosure is limited. Not what you want. Among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims indicating the highest concept are described as optional constituent elements.

In all the embodiments, the configurations in the respective modified examples are the same, and the configurations described in the modified examples can be combined, and the effects of the respective configurations are achieved.

(Embodiment 1)
FIG. 1 is a perspective view showing the entire electric grinder of Embodiment 1 according to the present disclosure. FIG. 2 is a cross-sectional view showing the internal configuration of the electric grinder of the first embodiment. The electric grinder shown in FIG. 1 and FIG. 2 is roughly divided into a pulverizing unit 10 for pulverizing an inputted material to be crushed and a drive control unit 20 serving as a main body having a motor as a drive source. It is configured. The upper crushing unit 10 in the electric grinder is detachable from the lower drive control unit 20. For this reason, the pulverization unit 10 has a configuration that can be replaced with another pulverization unit having a different pulverization method (for example, different pulverization tooth shape, size, and configuration) or having a different pulverization purpose.

As shown in FIG. 2, the pulverizing unit 10 includes a hopper unit 1 that is an input unit into which the material to be crushed is charged, and a coarse-grinding mechanism at the next stage of the material to be crushed into the hopper 1 every predetermined amount. The feed adjusting unit 2, the coarse grinding unit 3 having a coarse grinding mechanism that coarsely pulverizes the material to be pulverized into a powder having a large particle size, and the ground material coarsely crushed in the coarse grinding unit 3 Coarse powder conveyance mechanism unit 4 that is a conveyance mechanism that sends an article to the next-stage fine grinding mechanism at a predetermined speed, fine grinding unit 5 that has a fine grinding mechanism that finely pulverizes to a predetermined particle size or less, and the pulverization unit And a detachable mechanism portion 6 that allows the drive control portion 10 to be detachably attached to the drive control portion 20. In addition, the pulverizing unit 10 is provided with a storage container 9 for holding a material to be pulverized to a predetermined particle size or less so as to be detachable. A plurality of the storage containers 9 are prepared in advance according to the type of the object to be crushed, and in the case of an object to be pulverized that is liquid, the storage container 9 having the discharge port 24 is used to flow out from the discharge port 24. It is good also as a structure which receives the to-be-ground material in another container (refer FIG. 1).

The introduction adjustment unit 2, the coarse powder grinding unit 3, the coarse powder conveyance mechanism unit 4, and the fine powder grinding unit 5 in the pulverization unit 10 are rotated coaxially with the motor 11 in the drive control unit 20 as a drive source. It is configured. The drive control unit 20 is provided with a decelerating means. By the setting by the operation unit 12 provided in the drive control unit 20 which is the main body, the introduction adjusting unit 2, the coarse grinding unit 3, the coarse powder transport mechanism unit 4, and The drive speed in the fine grinding part 5 can be adjusted. In addition, the pulverizing unit 10 according to the first embodiment is partly formed of a transparent resin material, and has a configuration in which the pulverized state of the object to be crushed in the fine grinding portion 5 and the storage container 9 can be visually observed.

FIG. 3 is an exploded perspective view of the electric grinder of the first embodiment, showing a state in which each major element that can be disassembled is disassembled. As shown in FIG. 3, the pulverization unit 10 removed from the drive control unit 20 includes a pulverization lid unit 22 on which the hopper unit 1 is formed, an introduction adjustment unit 2, a coarse powder grinding unit 3, and a coarse powder conveyance mechanism unit 4. And it is decomposed | disassembled into the crushing case 23 which accommodates the fine grinding part 5, and the storage container 9 which can be attached or detached to the crushing case 23. FIG. Inside the crushing case 23, a fixed side housing 25 that holds the fixed side (18, 7) in the coarse grinding unit 3 and the fine grinding unit 5, and a mortar rotary shaft 13 that is coaxial with the motor rotary shaft 14 are provided. The introduced adjustment unit 2 (16, 17), the rotation side (19) of the coarse grinding unit 3, the coarse powder transport mechanism unit 4, and the rotation side (8) of the fine grinding unit 5 are accommodated. The crushing case 23 is formed of a transparent resin material and has a configuration in which the crushing state inside the crushing case 23 can be confirmed. Further, the accommodated items such as the coarse grinding unit 3 and the fine grinding unit 5 accommodated in the pulverizing case 23 have a configuration that can be disassembled so that they can be cleaned and replaced. The crushing case 23, the crushing lid part 22, and the drive control unit 20 are formed with cuts that are fitted to each other, so that the crushing lid part 22, the crushing case 23, and the drive control unit 20 are not easily detached. ing.

The outer surface mortar part 19 which is a movable part of the coarse powder grinding part 3, the spiral conveyance path 21 in the coarse powder conveyance mechanism part 4, and the movable part of the fine grinding part 5, which are housed in the grinding case 23. The lower mill part 8 is configured to be removable from the crushing case 23. Further, the inner mortar portion 18 that is a fixing portion of the coarse grinding portion 3 and the upper mortar portion 7 that is a fixing portion of the fine grinding portion 5 can also be removed from the pulverizing case 23. For this reason, the crushing unit 10 can disassemble the contents and easily wash them.

Hereinafter, the main configuration of the electric grinder of Embodiment 1 will be described with reference to the accompanying drawings.

[Input section]
4 and 5 are perspective views showing the crushing lid portion 22 having the hopper portion 1 which is a charging portion in the crushing unit 10. 4 is a view of the crushing lid portion 22 as viewed from above, and FIG. 5 is a view as viewed from below. As shown in FIG. 4, the hopper portion 1 is formed in a funnel shape with an open top, and a predetermined amount of various materials to be crushed, for example, grains, spices, cacao beans, etc. are charged into the hopper portion 1 and temporarily. Has the function of holding. The hopper portion 1 has a plurality of inlets 1a formed at its funnel-shaped central portion. The material to be crushed falls to the introduction adjusting unit 2 from the charging port 1 a of the hopper unit 1. In the first embodiment, an example is shown in which the inlets 1 a are arranged with equal intervals and are configured with three openings around the center of the hopper portion 1. In addition, you may comprise each inlet 1a so that opening and closing is possible so that the number of the inlets 1a can be set suitably according to the kind of the grinding | pulverization object used as the object of grinding | pulverization.

Note that the shape, size, and number of the inlets 1a are appropriately set according to the type of object to be crushed, and the inlet 1a of the hopper 1 has a closed state and an open state. It is also possible to provide an opening / closing mechanism capable of automatically adjusting the number of inlets 1a and / or the size of the opening so as to be automatically controlled by setting the operation unit.

As shown in FIG. 5, a plurality of pressing portions 29 arranged on the circumference protrude from the back side of the crushing lid portion 22. The protruding end (lower end) of these pressing portions 29 is fixed side housing 25 to which fixed side members (outer surface mortar portion 19 and upper mortar portion 7) in coarse grinding portion 3 and fine grinding portion 5 are fixed. Has a function of pressing down. The pressing force of the pressing portion 29 against the stationary housing 25 can be adjusted by the screwing position into the crushing case 23 to which the crushing lid portion 22 is screwed. In addition, the press part 29 is formed, for example with the spring, and is arranged in parallel on the periphery at equal intervals centering | focusing on the mortar rotating shaft 13 used as a rotation center. For this reason, the pressing part 29 presses the circumference on the fixed side housing 25 evenly downward, so that the upper mill part 7 on the fixed side of the fine grinding part 5 is desired as the lower mill part 8 on the rotating side. It is comprised so that it may contact with the contact pressure of.

[Introduction adjustment section]
An introduction space 41 (see FIG. 2) is formed immediately below the insertion port 1a of the hopper portion 1 which is an introduction portion, and the introduction adjustment portion 2 is disposed in the introduction space 41. FIG. 6 shows a fixed-side housing 25 disposed inside the crushing case 23 and disposed immediately below the crushing lid portion 22, and an introduction adjusting unit configured to be rotatable through the center of the fixed-side housing 25. FIG.

When the crushing case 23 is mounted on the mounting surface of the drive control unit 20, the introduction adjusting unit 2 is connected to the motor rotating shaft 14 that protrudes from the mounting surface of the drive control unit 20. It is formed on the shaft. On the axis of the mortar rotary shaft 13, there are an outer surface mortar portion 19 which is a rotating portion in the coarse grinding portion 3 described later, and a transport mechanism for sending the material to be crushed from the coarse grinding portion 3 to the fine grinding portion 5. The coarse powder transport mechanism 4 and the lower mill 8 that is the rotating part of the fine powder grinder 5 are detachably provided.

As shown in FIG. 6, the introduction adjusting unit 2 has a disk-like introduction amount adjusting plate 16 formed on the axis of the mortar rotary shaft 13 and having a part of the opening formed as a notch. Further, a stirring portion 40 is formed at the upper end portion of the mortar rotary shaft 13. A plurality of protrusions 40 a that protrude radially from the outer peripheral surface of the upper end portion of the mortar rotary shaft 13 are formed in the stirring unit 40. The stirring unit 40 formed in this way is arranged at the center of the introduction space 41 immediately below the charging port 1 a of the hopper unit 1. The agitating unit 40 has a function of agitating the object to be pulverized introduced from the charging port 1a of the hopper unit 1 by the rotation thereof and dispersing the object to be pulverized so that the object to be pulverized does not harden in one place inside the introduction space 41.

Further, as shown in FIG. 6, the introduction amount adjusting plate 16 rotated by the mortar rotary shaft 13 is provided with an introduction amount adjusting opening 17 cut out on the arc. The introduction amount adjusting plate 16 regulates the introduction of the object to be crushed from the introduction space 41 to the coarse grinding portion 3, and the object to be crushed inside the introduction space 41 every time the introduction amount adjusting plate 16 rotates. Falls through the introduction amount adjustment opening 17 by a substantially constant amount. As a result, a predetermined amount of the pulverized material that can be pulverized to a desired state passes through the introduction amount adjustment opening 17 in the introduction adjusting unit 2 in the pulverized material charged into the hopper unit 1, and the next stage roughening is performed. It is fed into the grinding unit 3.

As described above, in the introduction adjustment unit 2 in the electric grinder of the first embodiment, every time the introduction amount adjustment plate 16 rotates, the material to be crushed falls from the introduction amount adjustment opening 17, and the coarse powder in the subsequent stage The amount of grinding in the grinding part 3 is adjusted. For this reason, the opening shape (opening area) of the introduction amount adjustment opening 17 is proportional to the amount of grinding, and the introduction amount adjustment opening 17 is prepared in various opening shapes and is configured to be replaceable. Further, the rotational speed may be varied according to the opening area of the introduction amount adjusting opening 17. Therefore, the electric grinder according to the first embodiment is configured to be able to handle various pulverized objects having different sizes, and from all kinds from small grains such as spices to large ones such as cacao beans. It becomes possible to perform a milling operation in a desired state on the object to be crushed.

In addition, when pulverizing an object to be crushed such as cacao beans, the number of openings may be adjusted together with the size of the opening shape of the introduction amount adjusting opening 17.

[Coarse grinding part]
FIGS. 7 and 8 are perspective views showing the inner surface mortar portion 18 which is a fixed side of the coarse grinding portion 3 provided in the fixed side housing 25 and the upper mortar portion 7 which is the fixed side of the fine grinding portion 5. is there. FIG. 7 shows the upper surface side, and FIG. 8 shows the lower surface side.

9 and 10 show an introduction adjustment portion 2 provided on a mortar rotation shaft 13 that passes through a through hole in the center of the fixed-side housing 25, an outer surface mortar portion 19 that is a rotation portion of the coarse grinding portion 3, The coarse powder conveyance mechanism part 4 which conveys a to-be-ground material from the coarse powder grinding part 3 to the fine powder grinding part 5, and the lower mill part 8 which is a rotation part of the fine powder grinding part 5 are shown.

As described above, by the rotation of the introduction amount adjusting plate 16, a predetermined amount of the object to be crushed per unit time is sequentially sent from the introduction adjusting unit 2 to the coarse grinding unit 3. The coarse grinding portion 3 is provided on the inner surface of the through-hole at the center of the fixed housing 25 and has an inner surface mortar portion 18 having a cylindrical shape with a constriction and a cone disposed in the inner surface mortar portion 18. It is comprised by the trapezoid outer surface mortar part 19. FIG. The inner surface mortar portion 18 and the outer surface mortar portion 19 are coaxially opposed to each other, and the outer surface mortar portion 19 is rotated by the rotation of the mortar rotary shaft 13, so that the rough surface is opposed to the fixed inner surface mortar portion 18. A grinding operation is performed.

The inner surface mortar portion 18 is formed by forming metal coarsely ground teeth (molar teeth) on the inner peripheral surface of the central portion of the fixed-side housing 25. On the other hand, the outer surface mortar portion 19 is formed by forming metal coarsely ground teeth (molar teeth) on the outer peripheral surface formed on the mortar rotation shaft 13 that passes through the through hole of the fixed housing 25. The coarse powder grinder 3 may have the same configuration as a grinder of a coffee mill that grinds coffee beans, for example. The gap between the inner peripheral surface of the inner surface mortar portion 18 and the outer peripheral surface of the outer surface mortar portion 19 becomes narrower as it goes downward, and the object to be crushed is introduced into the gap between the inner surface mortar portion 18 and the outer surface mortar portion 19 (introduction) It is introduced from the adjusting part 2) and gradually pulverized as it goes downward. The outer mortar portion 19 rotates inside the inner mortar portion 18 on the fixed side at a speed set by the rotation of the motor 11 provided in the drive control unit 20. As described above, the outer surface mortar portion 19 rotates relative to the inner surface mortar portion 18 at a set speed so that the object to be pulverized can be pulverized to a desired particle size.

In the coarse grinding part 3 in Embodiment 1, the outer surface mortar part 19 on the rotating side can be finely adjusted up and down, and the gap between the inner surface mortar part 18 and the outer surface mortar part 19 can be adjusted. For this reason, in the coarse grinding part 3, it is possible to adjust the particle size of the material to be crushed, and by performing the subsequent secondary grinding operation, the powder having a finer particle size can be reduced in size. Can be manufactured.

[Transport mechanism]
As described above, the object to be crushed from the introduction adjusting unit 2 is fed from above into the gap between the inner surface mortar portion 18 and the outer surface mortar portion 19 in the coarse grinding portion 3, and the inner outer mortar portion 19 rotates. After being crushed, it is fed into the coarse powder transport mechanism 4 which is the transport mechanism of the next stage. As shown in FIG. 9, the coarse powder conveyance mechanism unit 4 as a conveyance mechanism has a long conveyance path 21 formed in a spiral shape. The spiral conveyance path 21 is formed around the mortar rotation axis 13 coaxial with the motor rotation shaft 14 of the drive control unit 20 to be mounted, and the helical conveyance path 21 rotates by driving the motor 11. Thus, the object to be crushed is gradually moved downward, and a desired amount of the object to be pulverized is sequentially fed to the next fine grinding unit 5. In this way, the coarse powder conveyance mechanism unit 4 that is a conveyance mechanism constitutes a conveyance path of the object to be crushed from the coarse powder grinding unit 3 to the fine powder grinding unit 5, and from the coarse powder grinding unit 3 to the fine powder grinding unit 5. The amount of material to be crushed is regulated.

In the electric grinding machine according to the first embodiment, the long spiral conveying path 21 is provided between the coarse grinding unit 3 and the fine grinding unit 5 as described above. In addition, the object to be pulverized introduced into the coarse powder grinder 3 is regulated so that a predetermined amount of the object to be pulverized per unit time is introduced in the introduction adjusting unit 2. Therefore, the coarsely ground material to be crushed (coarse powder) discharged from the coarse powder grinder 3 does not stay in the previous stage before being fed to the fine powder grinder 5, and the fine grinder 5 smoothly. It is configured to be sent to. In the electric grinding machine of the first embodiment, the introduction adjusting unit 2 and the coarse powder transport mechanism unit 4 which is a transport mechanism serve as an adjusting unit, and this adjusting unit introduces the material to be crushed into the fine grinding unit 5. Has the function of adjusting the amount.

[Fine grinding part]
The fine grinding portion 5 includes a disk-shaped upper mortar portion 7 (see FIGS. 7 and 8) and a lower mortar portion 8 (see FIGS. 9 and 10) arranged coaxially. In addition, it has a mortar structure that grinds the object to be crushed between the lower surface of the upper mill part 7 and the upper surface of the lower mill part 8. In the configuration of the first embodiment, the upper mill part 7 and the lower mill part 8 are formed of natural stone such as granite or ceramics, for example. On the lower surface of the upper mill part 7 and the upper surface of the lower mill part 8, uneven streaks for moving the object to be crushed and moving to the outer peripheral side are formed. Similar to the stone mill, the lower surface of the upper mill part 7 and the upper surface of the lower mill part 8 are radially divided into a plurality of regions, and concave and convex patterns in which the concave and convex lines extend are formed in each region. Yes. A through hole 7a (see FIG. 8) is formed in the center of the upper mill 7 and the coarse powder to which the material to be crushed in the coarse grinder 3 is conveyed is inside the through hole 7a. A transport mechanism unit 4 is provided.

Therefore, the object to be crushed conveyed by the coarse powder conveyance mechanism unit 4 passes through the central through-hole 7a of the upper mill part 7 and is sent to the upper surface of the lower mill part 8. Since the lower mill part 8 is rotating, the object to be crushed moves in the radial direction by the uneven pattern formed on the upper surface and the centrifugal force, and is fed into the gap between the upper mill part 7 and the lower mill part 8. It is.

In Embodiment 1, the diameters of the upper ace 7 and the lower ace 8 are 100 mm to 150 mm, and the thickness is 10 mm to 20 mm. Moreover, regarding the gap between the upper mill part 7 and the lower mill part 8, the gap in the vicinity of the rotation center is wide and gradually becomes narrower in the circumferential direction. The upper and lower mortar surfaces of the upper mortar portion 7 and the lower mortar portion 8 are in close contact with each other at the peripheral edge, and approximately 1/3 of the radius of the upper and lower mortar surfaces is the contact surface. FIG. 11 is a cross-sectional view schematically showing an arrangement relationship between the upper mortar portion 7 and the lower mortar portion 8. In FIG. 11, the upper ace 7 and the lower ace 8 are exaggerated. As shown in FIG. 11, the object to be crushed conveyed by the coarse powder conveyance mechanism unit 4 enters through a gap near the rotation center between the upper mortar portion 7 and the lower mortar portion 8, and the upper mortar portion 7 and the lower mortar portion 8. It is crushed (ground) between the opposed surfaces and moves in the circumferential direction. And the pulverized material grind | pulverized in the desired fine powder state from the outer peripheral part of the upper mill part 7 and the lower mill part 8 is discharged | emitted. At this time, when the material to be crushed is cacao beans, it becomes a muddy liquid discharge. The pulverized product ground as described above is stored in the storage container 9 (see FIG. 3).

In addition, the grinding surface which is an opposing surface in the upper mill part 7 and the lower mill part 8 shown in FIG. 11 has a wide gap on the center side which is the introduction area A of the object to be crushed, and goes to the discharge area B on the outer peripheral side. It is comprised so that a clearance gap may become narrow. This makes it easy for the material to be crushed to be fed into the grinding surface between the upper mortar portion 7 and the lower mortar portion 8, and the temperature during the grinding operation on the grinding surface is low in the introduction region A, and the discharge region B This is so that it becomes higher as it approaches. In this way, by performing temperature control on the ground surface between the upper mill part 7 and the lower mill part 8 of the fine grinding part 5, as in the configuration of the second embodiment to be described later, On the other hand, a suitable grinding operation can be performed. The advantage of temperature management in the fine grinding unit 5 will be described in detail in a second embodiment described later.

In Embodiment 1, since it is a household electric grinder, in order to achieve a reduction in size and weight, a fine grinding portion 5 composed of an upper mill portion 7 and a lower mill portion 8 is small and lightweight. The upper mill part 7 and the lower mill part 8 are used. In the first embodiment, it is possible to use the small and light upper mill part 7 and lower mill part 8 because the lower mill part 8 which is a rotating part and the upper mill part 7 which is a fixed part are ground. This is because it has a configuration in which the elastic members are pressed against each other with a predetermined pressure. In the first embodiment, a plurality of pressing portions 29 are arranged in parallel as elastic members on the back surface side of the crushing lid portion 22, and the lower mortar portion 8 and the upper mortar portion 7 are operated by the pressing portions 29 during the grinding operation. It is comprised so that it may mutually press with a predetermined pressure. Thus, in the configuration of the first embodiment, an elastic member capable of applying a desired crushing pressure is used instead of the weight of the stone mill when using the stone mill.

[Whole grinding operation]
Hereinafter, the whole grinding operation in the electric grinding machine of the first embodiment will be described.

In the electric grinding machine of the first embodiment configured as described above, when the object to be crushed is put into the hopper part 1, the object to be crushed falls into the introduction space 41 from the charging port 1a of the hopper part 1. To do. An introduction adjusting unit 2 is provided in the introduction space 41. In the introduction adjusting unit 2, by the rotation of the introduction amount adjusting plate 16, a predetermined amount of the object to be crushed per unit time passes through the introduction amount adjusting opening 17 in the introduction amount adjusting plate 16 to the next coarse grinding unit 3. Fall. In the coarse grinding portion 3, the material to be crushed is introduced from above into the gap between the inner peripheral surface of the inner surface mortar portion 18 and the outer peripheral surface of the outer surface mortar portion 19. The gap between the inner peripheral surface of the inner surface mortar portion 18 and the outer peripheral surface of the outer surface mortar portion 19 becomes narrower as it goes downward, and the object to be crushed introduced into the gap between the inner surface mortar portion 18 and the outer surface mortar portion 19 is reduced. As it goes downward, it is gradually pulverized (coarse grinding operation).

The material to be crushed by the coarse grinding operation is sent to the coarse powder transport mechanism 4 which is the transport mechanism of the next stage. Since the coarse powder transport mechanism 4 provided between the paths of the grinding operation from the coarse powder grinder 3 to the fine grinder 5 has a long spiral conveyance path 21, the coarse powder grinder 3 The material to be crushed (coarse powder) discharged from the air does not stay and is smoothly fed into the fine grinding part 5.

The object to be crushed sent to the fine grinding portion 5 by the coarse powder transport mechanism portion 4 passes through the central through hole 7a of the upper mortar portion 7 and is sent to the upper surface central portion of the lower mortar portion 8. The object to be crushed that has been fed to the upper center portion of the lower mortar portion 8 flows in the radial direction by the uneven pattern and centrifugal force formed on the upper surface of the lower mortar portion 8, and It is sent into the gap. The object to be crushed between the ground surfaces, which are the opposing surfaces of the upper mortar portion 7 and the lower mortar portion 8, moves in the circumferential direction while being ground, and is ground from the outer peripheral portion to a desired fine powder state. The crushed material is discharged. The pulverized material thus ground is stored in the storage container 9, and when the discharge port 24 is provided in the storage container 9, it is discharged from the discharge port 24 to another container.

In the configuration of the first embodiment, when the grinding operation is performed, when the pulverizing unit 10 is mounted on the drive control unit 20, the mortar rotation shaft 13 attached to the center of the lower mill portion 8 is in the drive control unit 20. It is connected to the motor rotating shaft 14 of the motor 11 so that the lower mill 8 can be rotated at a predetermined speed. The rotational speed of the lower mill part 8 can be adjusted according to the type of the object to be crushed, and is set by the rolling switch 15 of the operation unit 12 provided in the drive control unit 20. The distance between the lower surface of the upper mortar portion 7 and the upper surface of the lower mortar portion 8 can be adjusted by finely adjusting the position of the upper mortar portion 7 fixed to the housing up and down, and the particle size of the object to be crushed is adjusted. can do.

Further, the electric grinding machine of the first embodiment is configured so that the grinding speed can be varied according to the type of the material to be crushed. For example, in the case of spices, the grinding speed is 3 g / The particle size is 350 μm. When cacao beans are used as the material to be crushed, for example, the grinding speed is 20 g / min, and the particle size is 20 μm. Thus, in the electric grinding machine of Embodiment 1, the particle size of the material to be pulverized can be adjusted by varying the grinding speed.

Furthermore, in the electric grinding machine according to the first embodiment, the grinding pressure on the object to be crushed at the time of fine grinding (during grinding) in the fine grinding part 5 causes the upper ace part 7 on the fixed side to be elastic in the pressing part 29. It is ensured by biasing downward by a member, for example, a spring. As a result, the fine grinding portion 5 has a configuration that can tolerate a certain amount of force due to the object to be crushed during fine pulverization.

Moreover, the outer surface mortar part 19 which is a movable part of the coarse grinding unit 3, the spiral conveyance path 21 in the coarse powder conveyance mechanism unit 4, and the fine grinding unit 5, which are housed in the grinding case 23. The lower mill 8 that is a movable part is configured to be removable from the crushing case 23. Further, the inner mortar portion 18 that is a fixing portion of the coarse grinding portion 3 and the upper mortar portion 7 that is a fixing portion of the fine grinding portion 5 can also be removed from the pulverizing case 23. For this reason, the crushing unit 10 has a configuration in which the contents can be disassembled and each can be easily cleaned and maintained.

As described above, in the electric grinding machine according to the first embodiment, the two-stage grinding includes the coarse powder creating operation in the preceding coarse grinding section 3 and the fine powder creating operation in the subsequent fine grinding section 5. It has a mechanism to perform the operation, and each grinding operation is configured to be smoothly performed via the transport mechanism (coarse powder transport mechanism unit 4), and the powder having a desired particle size is obtained by performing high-precision grinding. It becomes possible to manufacture a body reliably.

(Embodiment 2)
Next, the electric grinder of Embodiment 2 according to the present disclosure will be described. The configuration related to the grinding operation in the electric grinding machine of the second embodiment is substantially the same as the configuration related to the grinding operation in the electric grinding machine of the first embodiment. In the electric grinding machine of the second embodiment, the difference from the electric grinding machine of the first embodiment is that the fine grinding unit 5 that performs the fine grinding operation maintains the temperature adjustment function. The other points in the electric grinder of the second embodiment have the same configuration as that of the electric grinder of the first embodiment. Therefore, the second embodiment mainly differs from the first embodiment. To do. In the description of the second embodiment, components having substantially the same functions and configurations as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

The advantage of using a stone mill in the grinding operation is that the material to be crushed can be finely ground to extract scent components, and even if the stone mill itself continuously performs the grinding operation, the temperature does not rise, and the powder is burnt. There is nothing to do. When performing a grinding operation with a stone mill, since unnecessary stress is not applied to the object to be crushed, for example, in the case of spices, a fresh and natural scented pulverized product can be obtained, When the pulverized product is used for cooking, it is possible to make a delicious and tasty dish.

However, even when using a millstone, the millstone itself rises to a certain temperature because the millstones are rubbed together to grind the material to be crushed. Some materials to be crushed are greatly affected by the temperature at which the material is crushed, and some fragrance components are particularly greatly affected. For example, some spices are finely pulverized to a particle size of 350 μm or less, thereby destroying essential oil pockets that store the scent components of the spices, and scent components diverge into the air. However, the scent component is weakened and deteriorates when heat exceeding 40 ° C. is applied. In addition, when seeds containing a large amount of oil such as cocoa beans are ground, there is a problem that the ground material dissolves and becomes clogged as soon as the temperature rises, and a smooth grinding operation cannot be performed.

In order to solve the above problems, in the electric grinding machine of the second embodiment, in addition to the configuration of the electric grinding machine of the first embodiment, the fine grinding unit 5 that performs the fine grinding operation. Has a temperature adjustment function.

FIG. 12 is a cross-sectional view schematically showing the upper mill part 7A and the lower mill part 8A in the fine grinding part 5. As shown in FIG. 12, a plurality of radiating fins 26 are provided on the upper surface of the upper mortar portion 7A and the lower surface of the lower mortar portion 8A, respectively. These radiating fins 26 are erected on a holding member 42 fixed to the upper mortar portion 7A and the lower mortar portion 8A as a cooling mechanism. The heat radiating fins 26 and the holding member 42 are made of a material having high heat conductivity, such as a material containing aluminum.

The heat dissipating fins 26 that are the cooling mechanism shown in FIG. 12 are annular with the mortar rotation shaft 13 as the center, and are provided on concentric circles. The heat radiation fin 26 has a large (high) introduction area A close to the mortar rotary shaft 13 and gradually becomes smaller (lower) as it approaches the discharge area B on the outer peripheral side. That is, the surface area of the radiating fin 26 is the largest at the center side near the mortar rotation shaft 13 and gradually decreases as it approaches the discharge area B, so that the introduction area A radiates more heat than the discharge area B. . The shape, size, and configuration of these radiating fins 26 are appropriately defined according to the type of the object to be crushed and the configurations (shape, size, etc.) of the upper ace 7A and the lower ace 8A.

As described above, by adding the temperature adjusting function of the radiating fins 26 to the upper mill part 7A and the lower mill part 8A in the fine grinding part 5, the temperature control on the ground surface of the upper mill part 7A and the lower mill part 8A. Can be performed.

For example, the upper die part 7A and the lower die part 8A are cooled, the grinding surface in the upper die part 7A and the lower die part 8A is suppressed to 40 ° C. or less, and a specific spice is finely pulverized to a particle size of 350 μm or less. It is possible to extract the scent component of spices to the maximum. Further, when grinding the pulverized material and the cocoa beans, the cocoa beans are set at a low temperature (40 ° C. or lower) in the central region which is the introduction region A of the pulverized material in the upper mortar portion 7A and the lower mortar portion 8A. Suppresses the elution of oil from cocoa beans and prevents the cacao beans from sticking together. Then, the temperature rises as it approaches the discharge region B in the upper mill part 7A and the lower mill part 8A, so that the oil content of the cocoa beans melts and the fine powder ground to a particle size of 20 to 30 μm is mixed. It becomes liquid (paste-like), and is smoothly discharged from the outer peripheral side of the fine grinding portion 5 constituted by the upper mill part 7A and the lower mill part 8A.

As described above, the fine grinding part 5 is introduced in the introduction area A where the material to be crushed by the coarse grinding part 3 is introduced and the discharge area B where the material to be ground is finely pulverized and discharged. The temperature of the region A is configured to be lower than the temperature of the oil content of the object to be pulverized, and the temperature of the discharge region B is configured to be higher than the temperature of the oil content of the object to be pulverized. As a result, for example, when cacao beans containing a large amount of oil are used as the material to be crushed, elution of oil from the cacao beans is suppressed in the introduction region A, thereby preventing the cacao beans from sticking to each other. Then, as the temperature approaches the discharge area B, the temperature rises and the oil component of the cocoa beans melts and becomes liquid, and is smoothly discharged from the outer peripheral side of the fine grinding portion 5.

As described above, the electric grinding machine of the second embodiment has a configuration in which the temperature is adjusted in the fine grinding unit 5 in accordance with the viscosity characteristics of the oil content of the material to be ground. As a result, it becomes possible to continue the fine grinding operation in the fine grinding unit 5 even for the oily ground material such as cocoa beans, and the desired ground product can be smoothly obtained from the fine grinding unit 5. To be discharged.

FIG. 13 shows a configuration in which the temperature adjusting function for the fine grinding portion 5 is provided by another means, schematically showing the upper mortar portion 7B and the lower mortar portion 8B in the fine grinding portion 5, as a cooling mechanism. It is sectional drawing which showed the cooling fan 27 of. In the configuration shown in FIG. 13, a cooling fan 27 for forced cooling is provided as means having a temperature adjustment function. The cooling fan 27 is provided coaxially with the mortar rotary shaft 13 and cools the introduction region A that is the center side of the upper mortar portion 7B and the lower mortar portion 8B. A wind tunnel 28 is provided around the cooling fan 27, and the wind from the cooling fan 27 is directly blown against the introduction region A, which is the center side of the upper die 7B and the lower die 8B. Has been.

Thus, by providing the cooling fan 27 and the wind tunnel 28 in the fine grinding portion 5 as a cooling mechanism having a temperature adjusting function, as described above, on the ground surface of the upper mill portion 7A and the lower mill portion 8A, the introduction region It becomes possible to perform more reliable temperature management so that A has a lower temperature than the discharge region B. As a result, for example, it is possible to perform an optimum grinding operation even for a specific spice or a thing that needs to be ground in a special temperature environment such as cacao beans.

As described above, the electric grinding machine of the second embodiment can perform optimum temperature adjustment in the fine powder production in the fine grinding unit 5, and at an appropriate temperature according to the type of the object to be crushed. A powder with a desired particle size can be produced by performing a high-precision grinding operation.

(Embodiment 3)
Next, the electric grinder of Embodiment 3 according to the present disclosure will be described. In the electric grinder of the third embodiment, the external configuration of the electric grinder of the first embodiment is substantially the same, and the charging unit (hopper unit 1) and introduction adjustment described in the first embodiment are the same. A configuration similar to that of the unit 2 is applied.

In the electric grinding machine of the third embodiment, the configurations of the coarse powder grinding unit 3, the coarse powder conveyance mechanism unit 4 and the fine grinding unit 5 in the electric grinding machine of the first embodiment are different. In the electric powder grinder of the third embodiment, the coarse powder grinder, the coarse powder transport mechanism, and the fine powder grinder are integrally configured. In the third embodiment described below, differences from the first embodiment will be mainly described. In the description of the third embodiment, components having substantially the same functions and configurations as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

FIG. 14A and FIG. 14B show the configuration of the pulverizing unit 30 in which the coarse grinding unit, the coarse powder conveying mechanism unit, and the fine grinding unit in the electric grinding machine of the third embodiment are integrally configured. The crushing part 30 in the third embodiment is configured to be accommodated in the crushing case 23 shown in FIG. The crushing case 23 that accommodates the crushing unit 30 is mounted on the mounting portion of the drive control unit 20 with the upper opening portion closed by a crushing lid unit 22 including the hopper unit 1 that is an input unit. The motor rotation shaft 14 of the motor protrudes from the mounting portion of the drive control unit 20, and when the crushing case 23 that accommodates the crushing unit 30 is attached to the mounting portion of the drive control unit 20, the motor rotation shaft 14. And the rotating part of the grinding part 30 are connected.

As shown in FIGS. 14A and 14B, the grinding unit 30 in the electric grinding machine according to the third embodiment includes a screw grinding unit 31 that is a rotating unit coupled to the motor rotation shaft, and the screw grinding unit 31 disposed inside. And a cylindrical crushing drum 32 which is a fixed portion provided. The screw grinding part 31 has a screw part 33 having a spiral shape and a fine grinding part 34 having molar teeth on the outer surface. The screw portion 33 is formed with a spiral portion 33a that protrudes in a spiral shape on the outer peripheral portion thereof, and the protruding end of the spiral portion 33a is close to the inner surface of the pulverizing drum 32 that is disposed to face the screw portion 33. The fine grinding part 34 is made of natural stone such as granite or ceramics, for example. Concave and convex muscles (molar teeth) are formed on the outer surface of the fine grinding portion 34 in order to grind the object to be crushed.

The crushing drum 32 in which the screw grinding unit 31 configured as described above is disposed has a constricted cylindrical shape with an open top. In the crushing drum 32, an upper portion of the screw grinding portion 31 that faces the screw portion 33 is formed of a resin material. Further, in the grinding drum 32, the lower millstone portion 37 for grinding the object to be ground together with the fine grinding portion 34 of the screw grinding portion 31 is formed of natural stone such as granite or ceramics, for example. For this reason, molar teeth are formed on the inner surface of the stone mill portion 37 provided at the lower portion of the grinding drum 32 in order to grind the material to be ground, like the fine grinding portion 34. In the third embodiment, an example in which the upper part and the lower part (stone mill part 37) of the pulverizing drum 32 are formed as separate members and fixed integrally to each other will be described. However, the same member, for example, natural stone such as granite is used. Alternatively, an integral structure such as ceramics may be used.

The grinding drum 32 in the third embodiment is provided with a plurality of annular ribs 35 on its outer peripheral surface for increasing the strength. A plurality of vertical ribs 36 are provided on the inner peripheral surface of the pulverizing drum 32 in order to suppress the rotation of the screw portion 33 and the object to be crushed.

In the electric grinder of the third embodiment configured as described above, as described in the first embodiment, the object to be crushed is put into the hopper unit 1 and the inlet of the hopper unit 1 is inserted. It is introduced into the introduction adjusting unit 2 from 1a. In the introduction adjustment unit 2, every time the introduction amount adjustment plate 16 rotates, a predetermined amount of the object to be crushed per unit time is sequentially sent from the introduction adjustment unit 2 to the pulverization unit 30.

In the pulverizing unit 30 according to the third embodiment, the material to be pulverized is gradually sent downward from the upper portion of the screw grinding unit 31 inside the pulverizing drum 32 and rubbed against the inner surface of the pulverizing drum 32. And is being ground. At this time, since the screw grinding unit 31 is configured to rotate slowly, heat generation is suppressed in the grinding operation, and no powder baking is performed. The rotational speed of the screw grinding unit 31 in the third embodiment is set, for example, between about 30 rpm and 300 rpm according to the object to be crushed.

As described above, in the coarse grinding operation by the screw portion 33 and the pulverizing drum 32, the object to be pulverized is gradually sent downward along the conveying path by the helical portion 33a. Matching with the grinding amount in the fine grinding operation is achieved. As a result, in the configuration of the pulverizing unit 30 according to the third embodiment, a long spiral-shaped conveyance path is provided, so that the amount of grinding by the coarse grinding operation corresponds to the amount of grinding of the fine grinding operation. The material to be crushed discharged by the coarse grinding operation can be smoothly sent to the fine grinding mechanism.

In the configuration of the third embodiment, the coarse grinding operation of the screw portion 33 of the screw grinding portion 31 and the inner surface of the grinding drum 32 is performed by the coarse grinding portion 3 and the coarse grinding portion in the electric grinding machine of the first embodiment described above. This corresponds to the coarse powder grinding operation and the coarse powder conveyance operation by the powder conveyance mechanism unit 4.

In the fine grinding operation in the configuration of the third embodiment, the material to be crushed is a fine grinding portion 34 provided at the lower portion of the screw grinding portion 31 and a constricted cylinder formed at the lower portion of the inner surface of the grinding drum 32. It is carried out so as to be ground on the cylindrical surface of the shaped stone mill part 37. In this way, the screw portion 33 at the upper portion of the screw grinding portion 31 and the upper portion of the inner surface of the grinding drum 32 constitute a coarse grinding mechanism, and the fine grinding portion 34 and the stone mill portion immediately below the coarse grinding mechanism. 37 constitutes a fine grinding mechanism. For this reason, in the electric grinder of the third embodiment, the object to be crushed while being coarsely ground by the coarse grind mechanism and conveyed in a spiral manner moves from top to bottom using gravity and becomes clogged. It is a structure that is surely sent to the fine grinding mechanism.

In the electric grinding machine according to the third embodiment, the particle size adjusted by the fine grinding mechanism can be adjusted by adjusting the vertical position of the screw grinding unit 31 disposed inside the grinding drum 32. .

As described above, in the configuration of the electric grinding machine of the third embodiment, the fine grinding unit 34 forms a molar tooth on the outer peripheral surface of the cylindrical shape and grinds the object to be crushed on the outer peripheral surface. Therefore, the fine grinding mechanism can reduce the size in the width direction to save space, and the entire apparatus can be reduced in size.

In the configuration of the electric grinding machine of the third embodiment, a coarse grinding mechanism and a fine grinding mechanism are provided inside the grinding drum 32, and the material to be ground flows from top to bottom. The finely ground pulverized matter discharged from the fine grinding mechanism is discharged from below the pulverizing drum 32 and stored in the storage container 9 (see FIG. 3).

As described above, in the electric grinding machine of the third embodiment, the coarse powder creation in the coarse grinding mechanism and the fine powder creation in the fine grinding mechanism are continuously performed in two stages at the upper and lower positions inside the grinding drum 32. It is possible to manufacture a powder having a desired particle size by performing highly accurate pulverization. In particular, when performing the grinding operation of a specific spice that needs to eliminate the burning of powder and suppress the volatilization of the scent component, and / or the grinding operation for the food containing a large amount of oil such as cacao beans, The electric grinder of Embodiment 3 configured as described above can mill the object to be crushed into a desired state.

In each of the above-described embodiments, as the coarse grinder, for example, the same configuration as a grinder of a coffee mill that grinds coffee beans may be used, but the rotational speed is, for example, a roll mill. It is also possible to cope with a configuration in which an object to be crushed is introduced between the rubbing surfaces by using a roll grinding mechanism for rubbing different high-speed rolls and low-speed rolls. Since such a roll grinding mechanism has a short flow path in the grinding area, it is difficult to clog in the grinding area even in an oily material to be crushed, and heat is not applied, so a preferable grinding operation can be performed. It becomes possible. Furthermore, when the roll grinding mechanism is used, various types of objects to be ground can be used for grinding, from large to small.

As described above, as described in each embodiment, in the electric grinding machine of the present disclosure, the coarse powder creating operation in the preceding coarse grinding unit, and the fine powder creating operation in the subsequent fine grinding unit, By performing the two-stage milling operation through the coarse powder conveyance mechanism section which is a conveyance mechanism, it becomes possible to produce powder with a desired particle size by performing high-precision pulverization. As described above, in the electric grinding machine of the present disclosure, even if the grinding operation is continuously performed on various kinds of objects to be pulverized, the objects to be pulverized can be pulverized into a desired state. A good milling machine.

Moreover, the electric grinding machine of this indication is provided with the movable part in an introduction adjustment part, a coarse grinding part, a conveyance mechanism, and a fine grinding part on the same axis | shaft, and by one drive source (motor) in a drive part. It is the structure by which drive control is carried out. Therefore, according to the present disclosure, it is possible to construct a highly reliable electric grinder that has a simple structure, can be downsized, and can significantly reduce manufacturing costs. .

As described in each embodiment, the electric grinding machine of the present disclosure has a simple structure. For example, in a fine grinding operation, a configuration using a stone mortar has durability and safety. It has a high configuration. In addition, the electric grinding machine of the present disclosure has a structure in which main parts can be easily disassembled and removed, so that it is easy to clean, particularly in the grinding area where clogging is likely to occur. It is supposed to be.

Although the present disclosure has been described in each embodiment with a certain degree of detail, the disclosure content of these embodiments should be changed in the details of the configuration, and the combination and order of elements in each embodiment should be changed. Changes may be made without departing from the scope and spirit of the claimed disclosure.

Since the electric grinding machine of the present disclosure can perform an appropriate grinding operation according to the type of the object to be crushed, it can be applied to various types of milling apparatuses and constructs a highly versatile device. be able to.

1 Hopper section (input section)
2 Introduction adjustment part 3 Coarse powder grinding part 4 Coarse powder conveyance mechanism part (conveyance mechanism)
DESCRIPTION OF SYMBOLS 5 Fine grinding part 6 Desorption mechanism part 7 Upper mill part 8 Lower mill part 9 Storage container 10 Grinding unit 11 Motor 12 Operation part 13 Mill rotational axis 14 Motor rotational axis 15 Rolling switch 16 Introduction amount adjustment plate 17 Introduction amount adjustment opening 18 Inner surface die portion 19 Outer surface die portion 20 Drive control portion 21 Transport path 22 Grinding lid portion 23 Grinding case 24 Discharge port 25 Fixed side housing 26 Radiation fin 27 Cooling fan 28 Wind tunnel 29 Press portion 30 Grinding portion 31 Screw grinding portion 32 Grinding drum 33 Screw part 34 Fine grinding part 35 Annular rib 36 Vertical rib 37 Stone mill part 40 Stirring part 41 Introduction space 42 Holding member

Claims (11)

1. An input part having an opening into which a material to be pulverized is charged and sending the material to be pulverized to a coarse grinding part,
   The coarse powder grinder for roughly grinding the material to be crushed sent from the charging unit,
   A fine grinding part for further finely grinding the material to be crushed by the coarse grinding part, and an adjusting part for adjusting the amount of the ground material to be introduced into the fine grinding part,
   Electric grinder equipped with.
2. The adjustment unit includes an introduction adjustment unit that sends the object to be crushed sent from the input unit to the coarse grinding unit for each predetermined amount.
   The electric grinding machine according to claim 1.
3. The adjustment unit constitutes a conveyance path for the object to be crushed from the coarse grinding unit to the fine grinding unit,
   Including a transport mechanism that defines the amount of the material to be crushed from the coarse grinding portion to the fine grinding portion,
   The electric grinding machine according to claim 1 or 2.
4. The conveying path of the material to be crushed from the coarse grinding portion to the fine grinding portion is configured in a spiral shape.
   The electric powder grinder according to claim 3.
5. A mechanism for adjusting the particle size of the material to be crushed in at least one of the coarse grinding portion and the fine grinding portion;
   The electric grinder according to any one of claims 1 to 4.
6. According to the viscosity characteristics of the oil content of the object to be crushed, the temperature is adjusted in the fine grinding portion.
   The electric grinding machine according to any one of claims 1 to 5.
7. The fine grinding portion includes an introduction region into which the material to be crushed by the coarse grinding portion is introduced, and a discharge region to finely grind and discharge the material to be ground.
   The temperature of the introduction region is configured to be lower than the temperature of the oil content of the object to be pulverized, and the temperature of the discharge region is configured to be higher than the temperature of the oil content of the object to be pulverized.
   The electric grinder according to any one of claims 1 to 6.
8. In the fine grinding portion, the gap between the surfaces to be ground in the introduction region is configured to be wider than the gap between the surfaces to be ground in the discharge region.
   The electric grinding machine according to claim 7.
9. A cooling mechanism for cooling the fine grinding portion is further provided.
   The electric grinder according to any one of claims 1 to 8.
10. The coarse grinding part is composed of a helical screw part and a cylindrical grinding drum,
    The electric grinding machine according to claim 1.
11. The fine grinding portion is configured such that the object to be crushed moves from top to bottom and is ground on a cylindrical surface.
    The electric grinder according to claim 10.

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