GB2342568A

GB2342568A - Structure for grinder/squeezing apparatus

Info

Publication number: GB2342568A
Application number: GB9822533A
Authority: GB
Inventors: Kuo-I Ling; Rong-Yuan Tseng
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-07-21
Filing date: 1998-10-15
Publication date: 2000-04-19
Also published as: DE19839917C2; DE19839917A1; DE29815776U1; AU703207B3; GB9822533D0

Abstract

A structure for grinding dry or squeezing wet objects 3, such as beans or corn, comprises two opposing discs 1 and 2, one of which 2 is driven. Each of the opposing disc faces has grooves 12 and 22 radiating from its central area, the depth of which decrease towards the disc's circumference. Upstanding knives 121 and 221 lie on both sides of each groove 12 and 22. Each opposing disc face also has both coarse and fine grinding teeth formed by spaced ridges 14 and 24 and 15 and 25. When objects 3 are put into the grinder the driven disc 2 is rotated so that they are firstly cut and/or agitated by parts 13 and 23 lying between grooves 12 and 22 and projecting into the central area of the discs. The objects 3 then move to the grooves 12 and 22 as a result of centrifugal force where they are cut by the knives 121 and 221 into small pieces which are then ground or squeezed between the toothed surfaces 14, 15, 24 and 25.

Description

2342568 A GRINDING STRUCTURE OF A DUAL USAGE GRINDER

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a grinding structure of a grinder for grinding wet or dry objects, which may be used to grind dry beans or corn into powder or used to squeeze wet beans or corn to derive juice therefrom.

2. Background of the Invention

In the prior art, the grinder generally has a stone grinding disk. By the b Z51 coarse structure of the stone grinding disk, the beans and corn may be ground.

However, because of the character of the material quality of the stone grinding disk, some fine sand will mix with the grinding object. This is not desirable for the user of the grinder. In addition, the grinder may absorb water, thus for a period of time, it possibly generates moulds or changes odor. Therefore, alloy material is used as the grinding disk. However, because of the material, structure, characters (size, wet, or dry) and the whole grinding effects ( grinding period or grinding speed) of the grinding disk, the grinding, disk may be divided into two kinds, one for harder (dry) beans or corn, another for flexible beans or corn for squeezing juice.

In the aforementioned grinding disk for harder (dry) beans or corn, the beans or corn are cut to become fine powders by the crisp property thereof. On the other hand, flexible or soft beans and corn, having been soaked in water, are ground to obtain juice. Since the above two grinding disks can not be interchan-ed the consumer must buy both, i.e. two devices. This is not economic.

SUMMARY OF THE INVENTION

Accordingly, the object of the present invention is to provide a dual usage grinder which may be used to grind wet or dry beans or corn.

The grinding disk assembly or structure embodying the present invention Z Z31 is formed by an upper disk and a lower disk. The upper disk and the lower disk are provided with bean or corn-releasing and/or guiding grooves having vertical 1 knives and, on their opposed surfaces, grinding surfaces with teeth type textures are formed. When beans or grains of corn are firstly put into the disk assembly throu-,h an axial filling hole in the upper disk, they will be cut automatically, and then be ground by the grinding surfaces to become a fine powder. Thus the present invention provides a dual usage machine which may be used for processing wet or dry beans and corn.

As described hereinabove, the releasing guiding grooves provided with vertical knifes radiate relative to the disk axes, and the radially inner ends thereof are deeper than the radially outer ends thereof. Thus, during cutting, the beans or corn are gradually moved outwards by centrifugal force, whilst they are cut Zl 2-1 - time and again so as to become small pieces or a fine powder.

Grinding surfaces with teeth type textures are formed on the surfaces around and between the releasing guiding grooves so that after the small pieces of the beans or corn have entered between the grinding surfaces, they may be ground by the teeth type textures into a fine powder. This is a further effect of the present invention.

Moreover, moving pieces intended to move, agitate, and/or cut, the beans or grains of corn are associated with two adjacent releasing guiding grooves on the Z). 01 upper disk and the lower disk so that when the lower disk and its associated moving pieces are rotated relative to the upper disk, the beans or corn will be moved, i.e. stirred, by the moving pieces, and will be urged by centrifugal force Z) Z31 to enter the releasinc, cuidinc, orooves. Thus, the beans or corn will not remain t e n 7.5 on the lower disk radially inwardly of the upper disk. This is a further effect of the present invention.

One embodiment of the present invention will now be described with reference to the followina drawings, in which:

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a perspective view of a grinding disk assembly or structure Z' In embodying the present invention.

Fig. 2 is an exploded view shown that the grinding disk assembly or Z.5 structure embodying the present invention is installed in a grinder.

2 Fig. 3 is a cross section view shown the opposite upper disk and lower disk.

Fig. 4 shows an embodiment of the present invention.

DETAIELED DESCRIPTION OF THE PREFERRED EMBODEVIENT

Referring to Figs. I and 2, the grinding disk of the present invention includes an upper disk (1) and a lower disk (2). In the following description, beans are used as an example, however, the present invention may be used to grind bean, corns, and other foods of grain shape.

The upper disk is a circular disk and a material filling hole (11) is installed thereon. The upper disk (1) may be inversely installed on the lower portion of the upper cover of the grinder. Inclined releasing guiding grooves (12) having a radiated shape and with deep inner portions are installed on the periphery of the material filling hole (11). Vertical knives (12 1) are formed on the two sides of each of the releasing guiding gTooves (12). Meanwhile, A plurality of moving pieces are formed between two adjacent releasing guiding grooves (12). The number of the moving pieces is dependent on the number of the installed releasing guiding groove (12). On the same surface, coarse teeth type textures (131) and (16) and fine teeth type textures (17) are formed by the spaced lines (14) and (15).

Like the upper disk (1), the lower disk (2) is also a circular disk and a smaller axial hole (21) are formed in the center portion thereof so that thereby the lower disk (2) may be fixed on the extended primary axis of the grinding motor. Thus the lower disk may be driven to rotate by the motor. On the periphery of the axial hole (21), inclined releasing guiding grooves (22) having a radiated shape and with deep inner portions are installed on the peripheries of the material filling holes (11). Vertical knives (22 1) are formed on the two sides of each of the releasing guiding groove (22). Meanwhile, A plurality of moving pieces are formed between two adjacent releasing guiding grooves (22). The number of the moving pieces is dependent on the number of the installed releasing guiding groove (22). Similarly, on the same surface, coarse teeth type 3 textures (23 1) and (26) and fine teeth type textures (27) are formed by the spaced lines (24) and (25).

Therefore, by the aforementioned structure, the upper disk and lower disk are opposite with each other (referring to Fig. 3). In the embodiment of the present invention, each of the upper disk and the lower disk has six releasing guiding grooves. When the beans are input from the material input hole (11), since the lower disk (2) is rotating and the upper disk (1) and the lower disk (2) are installed with moving pieces (13) and (23). Thus when the beans (3) have been put into the disks, it will be cut by the vertical knives (121) and (221).

Under the effects of the moving, pieces and centrifugal force, the beans will enter into the releasing guiding grooves (12) and (22). During entering into the releasing guiding grooves (12) and (22), since the lower disk (2) is rotating, thus the beans may be cut by the vertical knives (121) and (221) on the two sides of the releasing guiding grooves (12) and (22). Because the inner sides of releasing guiding grooves are more deeper than the outer sides thereof The centrifugal force will cause the beans to move outwards and then they are cut many times so to form as many small pieces (as shown in Fig. 4). Finally, the smaller pieces of the beans further enter into the grinding surface so to be ground by the teeth type textures (131), (231), (16), (26), (17) and (27). Therefore, the effects of cutting and girding are achieved.

Of course, the beans (3) used in the present invention may be wet or dry, they may be cut in advance by the vertical knives (121) and (221) to gradually become small pieces. Finally the dry or wet beans (3) are further ground by the teeth type textures (131), (231), (16), (26), (17) and (27). Therefore, by the matching of the upper disk (1) and the lower disk (2), the dry or wet beans (3) may be completely ground. Therefore, the grinder of the present invention is a dual usage machine.

Moreover, since during rotation of the lower disk (2), the beans (3) is probably stayed in the lower disk (2) so not to be rapidly transferred into the releasing guiding grooves (12) and (22). Therefore, extended moving pieces (13) and (23) are installed between two adjacent releasing guiding grooves (12) and 4 (22) of the upper disk (1) and lower disk (2), then they may be rapidly transferred into the releasing guiding grooves (12) and (13) by the action of centrifugal force. Next, they are cut by the vertical knives (121) and (221) to gradually become small pieces. Finally the beans (3) are further ground by the teeth type textures (131), (231), (16), (26), (17) and (27).

In summary, the grinder of the present invention may be used to squeeze juim from beans or corns, or used to grind beans or corns to become powder. Therefore, the present invention is a dual usage machine. Although certain preferred embodiment of the present invention has been shown and described in detail, it should be understood that various changes and modification may be made therein without departing from the scope of the appended claims.

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Claims

1. A grinding structure for a dual usage grinder for grinding wet or dry objects, comprising:

a circular disk arranaement including an upper disk and a lower disk, the upper disk being intended to be fixed on the lower end of an upper cover, and the lower disk, in use, being rotatable by a motor, the upper disk and the lower disk being opposed; inclined releasing guiding grooves having a radiating configuration and deep inner portions being disposed between the upper disk and the lower disk; generally vertical knives being formed on the two sides of each of the releasing guiding grooves; on the surface faced to the two disks, coarse teeth type textures and fine teeth type textures being formed by spaced lines; and a plurality of moving pieces being formed between two adjacent releasing guiding grooves for receiving the objects to be squeezed or ground; wherein, in operation, the objects are firstly cut and/or moved by the moving pieces, next, by centrifugal force, the objects will be guided to the releasing guiding grooves so that they are cut by the generally vertical knives many times to form a plurality of small pieces, then these small pieces are ground to fine powder by the arinding surface, therefore, the wet or dry objects may be around.

2. A arindin- structure for a grinder, substantially as hereinbefore described with reference to the accompanying drawings.

3. A arinder incorporating a grinder structure as claimed in claim 1 or 2.

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