• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Grinder (15) for grinding spices, in particular salt, with a stator (1) and a rotatably mounted rotor (11) arranged concentrically therewith, the stator (1) and the rotor (11), at least in sections, having convexly curved grinding projections (2), the surfaces of which are free of discontinuities.
    公开号:AT522032A1
    申请号:T51128/2018
    申请日:2018-12-18
    公开日:2020-07-15
    发明作者:
    申请人:Joma Kunststofftechnik Gmbh；
    IPC主号:
    专利说明:

    The invention relates to a grinder for grinding spices, in particular salt, with a stator and a concentric thereto
    arranged, rotatably mounted rotor.
    Furthermore, the invention relates to a spice grinder for grinding spices, in particular salt, with a container for the
    Seasoning.
    Grinders of this type have been known for some time from the prior art and typically have sharp-edged cutting teeth on the rotor and / or on the stator, with which the spice, also referred to below as ground material, is cut up and thereby crushed. With some spices, such as pepper, cutting the ground material has the advantage that the aromas in the ground material are retained over a longer period of time. With hard spices, however, it turned out that the incisors wear out relatively quickly and the resulting abrasion together with the spice from the grinder
    is promoted and eventually ends up on the food.
    It has also been found that when using hard spices, the grain of the ground spice cannot be kept constant because the incisors over time
    are becoming increasingly worn by the regrind and thereby
    blunt.
    A grinder of the type mentioned at the outset is shown, inter alia, in EP 2 474 256 A1. Both the rotor and the stator have elongated, sharp-edged incisors that are used to cut the ground material and thereby shred it. Disadvantageously, when using hard spices such as salt, as explained above, the incisors wear out quickly, causing the grain of the ground salt to change over time
    changes and the abrasion ends up in the food with the ground spice.
    It is therefore an object of the present invention to alleviate or eliminate the disadvantages of the prior art. In particular, it is an object of the present invention to provide a grinder in which the abrasion of the rotor and the stator during
    Grinding hard spices is minimized or avoided without
    to reduce the throughput of the regrind.
    This object is achieved in that the stator and the rotor have, at least in sections, convexly curved grinding projections, the surfaces of which are free of discontinuities. Such a design of the grinding projections
    crushing the spice when turning the rotor.
    According to the invention, instead of incisors, as is customary in the prior art, it is therefore provided to provide convexly curved grinding projections, the surfaces of which are free from discontinuities. It has been shown that in particular for the crushing of spices with a crystalline structure, such as salt, no sharp-edged cutting teeth are required in the grinder, since such spices, due to their structure, have predetermined breaking points along which the crystal structure breaks open when pressure is applied. It is therefore sufficient to use blunt surfaces, such as the grinding projections according to the invention, to merely exert pressure on crystalline or mineral spices, as a result of which they break into small parts by themselves. Of course, spices other than salt, in particular rock salt, or pepper, can also be broken up or crushed by the blunt grinding projections. In the grinder according to the invention, there are no discontinuities such as sharp edges, acute-angled undercuts or pointed projections on the surfaces which come into contact with the material to be ground, which are usually worn out over time in the prior art. As a result, the abrasion during grinding can be reduced or even avoided entirely without reducing the grinding throughput. The grinder according to the invention is particularly characterized by an increased resistance to abrasion
    use and a longer lifespan.
    Expressions such as "top" and "bottom" or modifications thereof refer to the intended use of the grinder. "Unmilled" grist or spice enters the grinder "above", "milled" ground grist or
    Finally spice out of the grinder.
    The grinding projections according to the invention are at least
    at least sectionally convex, i.e. curved outwards in sections without forming corners. It is essential that the grinding projections do not have sharp edges, projections or undercuts, but smooth surfaces. In one embodiment, the grinding projections are convexly curved over the entire cross-section without forming pointed edges, projections or undercuts. In the grinder according to the invention, both the rotor and the stator have the grinding projections according to the invention, wherein different shapes of grinding projections can be provided on the rotor and on the stator. Different grinding projections with different shapes can also be provided on the same unit (rotor and stator). So that the shape of the grinding projections is retained over the long term, they preferably consist of polyoxymethylene (POM); alternatively, production from polycarbonate (PC), polyethylene terephthalate (PET), polystyrene (PS), polymethyl methacrylate (PMMA), polyacrylonitrile butadiene styrene (ABS), polylactide (PLA) or other suitable plastics is also conceivable. In particular, the rotor and / or the stator and / or the grinding projections
    be made of the same material.
    In a preferred embodiment, the rotor is arranged inside the stator (inner rotor). Alternatively, the rotor can be arranged on the outside around the stator (external rotor). In both cases there is always a circumferential gap between the rotor and stator so that the rotor can rotate. While the rotatably mounted rotor is being rotated, the grinding projections of the rotor slide past the grinding projections of the stator. If a grinding projection of the stator is opposite a grinding projection of the rotor, the gap is reduced at this point, as a result of which ground material located between them is crushed. The width of the gap therefore varies over the circumference. It is important that there is always a gap between the rotor and the stator so that the rotor can rotate and the material to be ground passes through the grinder. The rotor and stator each have a base surface on which the grinding projections are arranged. In the case of a hollow cylindrical stator, the base surface is the inner surface. In the case of a conical (truncated) or cylindrical rotor, the base surface is the lateral surface. It is the same with the external rotor variant
    vice versa.
    Direction like the longitudinal axis of the rotor or stator.
    In order to reduce the abrasion even further, it is favorable if the grinder has an inlet side and an outlet side for the spice and the end faces of the grinding projections facing the inlet side are convexly curved. Thus, the spice introduced into the grinder via the input side meets convexly curved end faces that are free of sharp edges, corners and acute-angled undercuts. The input side of the grinder is the side on which the unground spice enters the grinder. The grinder is usually on the input side via a housing with a container
    nis connected.
    In order to enable the rotation of the rotor and to promote the throughput of the spice through the grinder, it has proven to be advantageous if the rotor and the stator are arranged in such a way that at any time during the rotation of the rotor the grinding projections of the rotor from the Grinding projections of the stator are spaced apart, in particular at least 0.1 mm apart. This does not mean that the distance between the grinding projections of the rotor and the grinding projections of the stator should be constant. However, there is never a direct contact between the grinding projections of the rotor and the stator. Depending on the shape of the rotor and the stator, the distance can be both along the circumference of the stator and the rotor
    also vary along their longitudinal direction.
    It is advantageous if the cross sections of the grinding projections of the steel
    tors represent circle segments whose radius is in one area
    is between 0.1 mm and 70 mm, preferably between 0.15 mm and 60 mm, even more preferably between 0.2 mm and 50 mm. These values have proven to be particularly favorable with regard to minimizing the abrasion without reducing the ground amount. The radius of the circle segment refers to the circular arc. In the prior art, grinders usually have sharp-edged teeth with radii of less than 0.1 mm and therefore cut the spices during grinding. In the grinder according to the invention, however, the spices are crushed. The grinding projections of the stator can each have different cross sections. Groups with the same cross sections can also be provided. It is only important in this embodiment that the cross sections are circular segments, i.e. Show sections of a circle. The cross sections of the grinding projections of the stator preferably extend essentially over their entire length
    Length of circle segments.
    In order to avoid wedging of the non-ground spice, it can be advantageous if the stator is divided into an area for coarse grinding with first stator grinding projections and an area for fine grinding with second stator grinding projections, the first stator sections preferably being in the area for coarse grinding. Grinding projections are spaced apart. Due to the distance between the first stator grinding projections, the spice is roughly ground first. The area for fine grinding preferably adjoins the area for coarse grinding. Of course, other areas for finer gradation between the area for coarse grinding and the area for fine grinding can also be provided as a transition. In the area of fine grinding, the second stator grinding projections are arranged closer together than the first stator grinding projections in the area of coarse grinding. The second stator grinding projections preferably adjoin one another directly
    or merge.
    All grinding projections on the stator have a maximum height to the base surface of the stator, which corresponds to the radius in the case of stator grinding projections with cross sections which represent circular segments. The ratio of the maximum height of the first stator
    Grinding projections to the maximum height of the second stator
    Grinding projections are preferably in the range between 1: 0.25 and
    1: 2, especially 1: 1.2.
    The first and second stator grinding projections can also be used
    Base surface be inclined, preferably in the longitudinal direction.
    For a particularly high grinding throughput, it has proven advantageous if the ratio of the number of first stator grinding projections to the number of second stator grinding projections is in the range between 1: 1 and 1:15, preferably between 1: 1 and 1:10, in particular at 1: 2. Accordingly, the number of second stator grinding projections is at least as high as the number of first stator grinding projections. The number of second stator grinding projections is preferably higher than the number of first stator grinding projections. As a result, it gradually finds a finer one
    Grinding the spice instead.
    In a preferred embodiment it is provided that the rotor has a base surface 59 and is divided into an area for coarse grinding with first rotor grinding projections and an area for fine grinding with second rotor grinding projections, the first rotor grinding projections preferably being in the area for coarse grinding are spaced. In particular, it is favorable - if a division is also provided for the stator - if the area for coarse grinding of the rotor interacts with the area for coarse grinding of the stator. The same applies to the areas of fine grinding. Of course, other areas for finer gradation between the area for coarse grinding and
    the area for fine grinding.
    All grinding projections on the rotor have a maximum height to the base surface of the rotor. The ratio of the maximum height
    the first rotor grinding projections to the maximum height of the second rotor grinding projections is preferably in the range between 1: 0.25
    and 1: 2, especially at 1: 1.3.
    The first or second rotor grinding projections can also be used
    sisfläche be inclined, preferably in the longitudinal direction.
    71725
    The ratio of the number of first rotor grinding projections to the number of second rotor grinding projections can lie in the range between 1: 1 and 1:15, preferably between 1: 1 and 1:10, in particular at 1: 3. Accordingly, the number of second rotor grinding projections is at least as high as the number of first rotor grinding projections. The number of second rotor grinding projections is preferably higher than the number of first rotor grinding projections. As a result, it gradually finds a finer one
    Grinding the spice instead.
    In order to promote fine grinding as gently as possible, it is advantageous if the cross sections of the second rotor grinding projections have a section which rises substantially flat and a section which is convexly curved and descending. The direction of rotation of the rotor for grinding then takes place in such a way that the convexly curved, sloping sections lie first in the direction of rotation. The section which essentially rises flatly adjoins the convexly curved, falling section. The slope of the essentially flat descending
    section is essentially linear.
    In addition, the first rotor grinding projections can each have a flat section and two opposite, convexly curved flanks adjoining the flat section. The same
    ne section is free of curvature.
    It is advantageous if the convexly curved flanks in the transition region between the convexly curved flanks and the base surface of the rotor span an angle with the base surface within the first rotor grinding projections that is less than 90 °. In other words, the angle that the rises of the convexly curved flanks form in the transition to the base surface with the base surface (that is, their tangents located there) is less than 90 °, so that no undercut undercuts occur.
    stand.
    In order to guide the grinding stock during the rotation of the rotor, it is advantageous if the grinding projections of the rotor are rotated helically around a longitudinal axis of the rotor. The twist can
    0 ° -90 °, preferably at least 10 °, in particular 65 °, around the
    If there are separate areas for coarse grinding and fine grinding, a smoother transition between the areas can be achieved if the rotor tapers conically from the bottom to the top. The upper side faces the input side and the lower side the output side of the grinder. Accordingly, the rotor in this embodiment essentially (except for the grinding projections) has the shape of a truncated cone, the base of which, with the larger diameter, faces the output side and thus corresponds to the underside. The truncated cone conveys and crushes the material to be ground in an ever narrowing gap between the stator and the rotor. Of course, the stator can also converge conically from one side to the other in order to create an increasingly narrow gap. In a particularly preferred embodiment, the stator has the shape of a
    Hollow cylinder and the rotor in the shape of a truncated cone.
    Preferably, the section which rises substantially flat, in particular viewed from the underside of the rotor, in the transition region to the base surface of the rotor with an tangent to the base surface forms an angle x in the mathematically positive direction from the tangent to the base surface counted away from a maximum of 90 °, particularly preferably from a maximum 45 °, more preferably a maximum of 20 °. In other words, the surface of the just rising section with the underlying tangent to the base surface encloses the angle @ &. The tangent touches the base surface in the transition area between the just
    rising section and the base area.
    Furthermore, it is favorable if the convexly curved, sloping section, in particular viewed from the underside of the rotor, counts an angle β in the mathematically positive direction from the tangent to the base surface of at least 90 ° in the mathematically positive direction in the transition region to the base surface of the rotor , particularly preferably from a minimum of 100 °, even more preferably from a minimum of 120 °, but a maximum of 180 °. The tangent touches the base surface in the transition area
    between the curved, sloping section and the base surface
    che. The angle ß is, in contrast to the angle qu, spanned outside the second rotor grinding projection from the surface of the base surface and the surface of the curved, sloping section. Since the convexly curved section is curved, the angle β is also counted to a tangent to the convexly curved section in the transition region to the base surface.
    In order to minimize or completely avoid the abrasion caused by the ground material, it is advantageous if the smallest curvature of the cross sections of the grinding projections has a curve radius R which is in a range between 0.1 mm and 70 mm, preferably between 0.15 mm and 60 mm, more preferably between 0.2 mm and 50 mm or 1 mm and 20 mm. Accordingly, the cross sections of the grinding projections in any case have no edges, corners or projections whose radii are less than 0.1 mm, preferably less than 0.15 mm, even more preferably less than 0.2 mm. The end faces of all grinding projections facing the input side of the grinder also have no edges, corners or projections whose radii are less than 0.1 mm, preferably smaller
    than 0.15 mm, more preferably less than 0.2 mm.
    Furthermore, the above object is achieved by a spice mill of the type mentioned at the beginning, which has a grinder
    according to the above statements.
    A particularly preferred embodiment of the present invention is described below with reference to figures, on which
    however, it should not be limited.
    Fig. 1 shows a stator according to the invention in longitudinal section.
    Fig. 2 shows a stator according to the invention in a view from
    below.
    3 shows a stator according to the invention in an oblique
    view from above.
    Fig. 4 shows a stator according to the invention in a view from
    above.
    5 shows a rotor according to the invention in an inclined
    view from above.
    6 shows a rotor according to the invention in a view from
    below.
    7 shows a rotor according to the invention in a helical
    view from below.
    Fig. 8 shows a grinder according to the invention with a rotor and
    a stator in a bottom view.
    Fig. 9 shows a grinder according to the invention with a rotor and
    a stator in an oblique view from above.
    10 shows a grinder according to the invention in cross section in
    a housing.
    Expressions such as "top" and "bottom" or modifications thereof refer to the intended use of the grinder. "Unmilled" grist or spice enters the grinder "above", "milled" ground grist or
    Finally spice out of the grinder.
    In the figures, the individual parts of a grinder 15 according to the invention are partly shown separately. For the sake of clarity, a simplified representation has been chosen for the figures, in which elements not contributing to the understanding have been removed.
    were left.
    1 shows a stator 1 of a grinder 15 according to the invention (see FIG. 8) in the form of a hollow cylinder in longitudinal section. The inside of the stator 1 has a large number of elongated, convexly curved grinding projections 2, which are oriented in the direction of a longitudinal axis 3 of the stator 1 and extend over the entire length of the stator 1. The grinding projections 2 of the stator are convexly curved and along their entire longitudinal extent in the entire cross section
    form no acute undercuts and no sharp
    fen edges. The stator 1 is essentially divided into two sections. The upper section 4 forms an area 5 for coarse grinding, the lower section 6 an area 7 for fine grinding. In the area 5 for coarse grinding, the grinding projections 2 are referred to as first stator grinding projections 8. Correspondingly, the grinding projections 2 in the area of fine grinding 7 are referred to as second stator grinding projections 9. The first stator grinding projections 8 are spaced apart from one another for coarse grinding, while the second stator grinding projections 9 directly adjoin or merge into one another. In addition, the second stator grinding projections 9 are inclined toward a base surface 58 of the stator, which corresponds to the inner surface of the hollow cylinder, so that the second stator grinding projections 9 rise slightly in the direction of the first stator grinding projections 8. Of course, the first stator grinding projections 8 could also have an inclination with respect to the base surface 58. Others or even
    no inclinations are possible.
    As can be seen in particular from FIGS. 2 and 4, the cross sections of the first 8 and second stator grinding projections represent 9 segments of a circle. This means that the cross-sectional area 55 of the first 8 and second stator grinding projections represents 9 segments of a circle, that is to say of a circular arc and a circular chord represent partial areas of a circular area. The radius R of the circular arc is in a range between 0.1 mm and 70 mm, preferably between 0.15 mm and 60 mm, even more preferably between 0.2 mm and 50 mm or, as in the embodiment shown, 2 mm . The cross sections of the first 8 and second stator grinding projections 9 are essentially over their entire length
    constant.
    Referring again to FIG. 1, it can be seen that the first stator grinding projections 8 merge into the second stator grinding projections 9. In addition, it can be seen that the number of first stator grinding projections 8 is in a ratio of 1: 2 to the number of second stator grinding projections 9. I.e. there are twice as many second stator grinding projections 9 as first stator grinding projections 8. However, a higher or lower ratio can also be provided, as long as the number of
    second stator grinding projections 9 is at least as high as that
    Number of first rotor grinding projections 8. In cross section, the first stator grinding projections form 8 semicircles, while the second stator grinding projections represent 9 smaller segments of a circle
    (see Figs. 2 and 4). All grinding projections 2 of the stator 1 form on the end faces 56 facing an input side 10
    a convex curvature in the form of a section of a spherical surface. The area 5 for coarse grinding is the
    assigned side 10 of the grinder 15.
    Fig. 3 shows the stator 1 in an oblique view from above, i.e. input side, area 5 being visible for coarse grinding
    is.
    5 shows an essentially frustoconical rotor 11 in an oblique view from above. On the outside of the rotor 11, similar to the stator 1, elongated, convexly curved grinding projections 2 are also provided, which, however, in contrast to the grinding projections 2 of the stator 1, are twisted helically around a longitudinal axis 12 of the rotor 11. The rotation around the longitudinal axis is 65 ° in the illustration shown. It can be seen that the rotor 11 tapers conically from an underside 13 to an upper side 14. For example, the diameter of the top is approximately 9.75 mm and the diameter of the bottom is 22.8 mm. In the assembled state of the grinder 15, the top 14 is the input side
    10 and the underside facing an exit side 16.
    Like the stator 1, the rotor 11 is also divided into two sections. The upper section 17 represents an area 18 for coarse grinding, the lower section 19 represents an area 20 for fine grinding. In the area 18 for coarse grinding, the grinding projections 2 are referred to as first rotor grinding projections 21. Correspondingly, the grinding projections 2 in the area of fine grinding 20 are referred to as second rotor grinding projections 22. The first rotor grinding projections 21 are spaced apart for coarse grinding. The number of first grinding projections 21 of the rotor 11 to the number of second grinding projections 22 of the rotor 11 is in a ratio of 1: 3, but can also be higher or lower as long as the number of second rotor grinding projections
    22 is at least as high as the number of first rotor
    Grinding projections 21.
    As can be seen in particular from FIGS. 5 and 7, the first rotor grinding projections 21 merge into the second rotor grinding projections 22, a convex curved edge 23 being formed in the transition region, the radius of curvature of which is preferably at least 0.2 mm. Where the second rotor grinding projections 22 do not merge into first rotor grinding projections 21, a convexly curved edge, i.e. blunt edge, formed. In cross section, the first rotor grinding projections 21 each have a flat section 24 and two opposite convexly curved flanks 25 which adjoin the flat section. The convexly curved flanks 25 form an angle of a maximum of 90 ° with the base surface 59 of the rotor, so that there are no acute undercuts. The base surface 59 corresponds to the outer surface of the rotor without grinding projections 2, that is to say the outer surface of a truncated cone. All of the end faces 57 of the grinding projections 2 of the rotor 11 pointing in the direction of the top 14 of the rotor 11 are for
    Minimization of abrasion also convex.
    As can be seen from FIG. 6, the cross sections of the second rotor grinding projections 22 have a section 26 which rises substantially flat and a section 27 which is curved in a convex manner. The direction of rotation 60 of the rotor 11 for grinding takes place in such a way that the convexly curved, sloping sections lie first in the direction of rotation. The section 26, which rises essentially flat, viewed from the underside 13, closes an angle x in the mathematically positive direction from the tangent 61 of a maximum of 90 °, particularly preferably of a maximum of 45, on the base surface 59 with tangent 61 on the base surface 59 of the rotor 11 °, in the illustration shown by 14 °. The tangent 61 touches the base surface 59 in the transition region between the just rising section 26 and the base surface 59. The angle @ & is practically within the second rotor grinding projection 22 between the surface of the rising section 26 and the tangent to the base surface 59 better representation of the angle @ an imaginary extension of the just rising section 26 is drawn. In the
    in Fig. 6 top view is the base surface 59 means
    indicated by a dashed circle.
    The convexly curved, sloping section 27, viewed from the underside 13, spans at the base surface 59 with a tangent 62 on the base surface 59 of the rotor 11 an angle β in the mathematically positive direction counted away from the tangent 62 of at least 90 °, particularly preferably of at least 110 °, in the embodiment shown from 122 °. The tangent 62 touches the base surface 59 in the transition region between the convexly curved, sloping section 27 and the base surface 59. The angle β lies virtually in the direction of rotation 60 in front of the section 27 and thus outside of the second rotor grinding projection 22 and becomes, so to speak, from the base surface 59 and the surface of section 27 spanned. Since the convexly curved, sloping section 27 is curved, the angle β also becomes a tangent 63 to the convexly curved section 27 in the transition
    area counted to base area 59.
    7 shows the rotor 11 according to the invention in an oblique view from below. It can be seen that the first rotor grinding projections 21 are transferred into the second rotor grinding projections 22
    hen.
    8 and FIG. 9 schematically show the assembled state of the grinder 15 according to the invention. All the connecting parts have been omitted for the sake of clarity. The rotor 11 is completely inserted into the stator 1. The rotor 11 is usually rotatably mounted (not visible). Between the rotor 11 and the stator 1 there is a gap 28 through which the ground material (not shown) passes from the input side 10 to the output side 16 and is thereby crushed. The gap 28 varies both locally along the circumference and also in time when the rotor 11 is set in rotation. The gap 28 also varies due to the frustoconical shape of the rotor 11 between the input side 10 and the output side 16. In other words, the gap tapers increasingly from the input side 10 to the exit
    aisle side 16.
    10 shows the grinder 15 according to the invention in cross section.
    The grinder 15 arranged within a housing 29 and with
    this connected via fastening means 30 in the form of locking lugs. The rotor 11 is connected to the stator via a preferably perforated cap 31, the cap 31 having a centrally arranged bearing pin 32 which engages in a recess 33 in the rotor 11. The rotor 11 can rotate about the bearing pin 32, but is secured against displacement. The housing 29 also has connection means on one side, for example a thread, for connection to a container
    (not shown) for spices.
    权利要求:
    Claims (17)
    [1]
    1. Grinder (15) for grinding spices, especially salt, with a stator (1) and a concentrically arranged, rotatably mounted rotor (11), characterized in that the stator (1) and the rotor (11) at least in sections have convexly curved grinding projections (2) in cross section, the
    Surfaces are free of discontinuities.
    [2]
    2. Grinder (15) according to claim 1, characterized in that the cross sections of the grinding projections (2) along the entire longitudinal extent of the grinding projections (2) at least in sections
    are convexly curved.
    [3]
    3. Grinder (15) according to claim 1 or 2, characterized in that the grinder (15) has an input side (10) and an output side (16) for the spice and the input side (10) facing end faces (56, 57) of the Grinding projections (2)
    are convexly curved.
    [4]
    4. Grinder (15) according to any one of claims 1 to 3, characterized in that the rotor (11) and the stator (1) are arranged such that at any time during the rotation
    of the rotor (11) the grinding projections (2) of the rotor (11) are spaced from the grinding projections (2) of the stator (1), in particular
    which are at least 0.1 mm apart.
    [5]
    5. Grinder (15) according to one of claims 1 to 4, characterized in that the cross sections of the grinding projections (2) of the stator (1) represent circular segments whose radius is in a range between 0.1 mm and 70 mm, preferably between 0 , 15 mm and
    60 mm, more preferably between 0.2 mm and 50 mm, lies.
    [6]
    6. Grinder (15) according to one of claims 1 to 5, characterized in that the stator (1) in a region (5) for coarse grinding with first stator grinding projections (8) and a region (7) for fine grinding with a second stator Grinding projections (9) is subdivided, the first stator grinding projections (8) preferably being spaced apart from one another in the region (5) for coarse grinding
    are spaced.
    [7]
    7. Grinder (15) according to claim 6, characterized in that the ratio of the number of first stator grinding projections (8) to the number of second stator grinding projections (9) in the range between 1: 1 and 1:15, preferably between 1 : 1 and 1:10, in particular
    right at 1: 2, lies.
    [8]
    8. Grinder (15) according to one of claims 1 to 7, characterized in that the rotor (11) has a base surface (59) and in a region (18) for coarse grinding with first rotor grinding projections (21) and a region (20) for fine grinding with second rotor grinding projections (22), preferably in the area (18) for coarse grinding the first ro
    gate grinding projections (21) are spaced apart.
    [9]
    9. Grinder (15) according to claim 8, characterized in that the ratio of the number of first rotor grinding projections (21) to the number of second rotor grinding projections (22) in the range between 1: 1 and 1:15, preferably between 1 : 1 and 1:10, in particular
    right at 1: 3, lies.
    [10]
    10. Grinder (15) according to claim 8 or 9, characterized in that the cross sections of the second rotor grinding projections (22) have a substantially level section (26) and one
    have convexly curved, sloping section (27).
    [11]
    11. Grinder (15) according to any one of claims 8 to 10, characterized in that the first rotor grinding projections (21) each have a flat section (24) and two opposite, convexly curved, adjacent to the flat section
    Have flanks (25).
    [12]
    12. Grinder (15) according to claim 11, characterized in that the convexly curved flanks (25) in the transition region between the flanks (25) and the base surface (59) of the rotor (11) with the base surface (59) an angle within the first rotor
    Clamp grinding projections (21) that is less than 90 °.
    [13]
    13. Grinder according to one of claims 10 to 12, characterized
    records that the essentially level section
    (26) in the transition area to the base surface (59) of the rotor (11) with a tangent (61) on the base surface (59) counts an angle (0a) in the mathematically positive direction away from the tangent (61) on the base surface (59) a maximum of 90 °, particularly preferably a maximum of 45 °, even more preferably a maximum of 20 °.
    [14]
    14. Grinder according to one of claims 10 to 13, characterized in that the convexly curved, sloping portion (27) in the transition region to the base surface (59) of the rotor (11) with a tangent (62) on the base surface (59) an angle (β) in the mathematically positive direction away from the tangent (62) on the base surface (59) counted from a minimum of 90 °, particularly preferably from a minimum of 100 °, even more preferably from a minimum of 120 °,
    ximal but 180 °, spanned.
    [15]
    15. Grinder (15) according to one of claims 1 to 14, characterized in that the grinding projections (2) of the rotor (11) helically around a longitudinal axis (12) of the rotor (11)
    are twisted.
    [16]
    16. Grinder (15) according to one of claims 1 to 15, characterized in that the rotor (11) from an underside (13)
    an upper side (14) tapers conically.
    [17]
    17. Grinder (15) according to one of claims 1 to 16, characterized in that the smallest curvature of the cross sections of the grinding projections (2) has a curve radius R which is in a range between 0.1 mm and 70 mm, preferably between 0, 15 mm and 60 mm, more preferably between 0.2 mm and 50 mm or 1
    mm and 20 mm, lies.
    18. Spice mill for grinding spices, in particular salt, with a container for the spice, characterized in that the spice mill has a grinder (15) according to one of claims 1 to
    17 has.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP2984973A1|2016-02-17|Grinder for grinding coffee beans and coffee machine with such a grinder
    DE102007024240A1|2008-11-20|screw
    EP1642664A1|2006-04-05|Threading tool
    DE2840337B2|1981-04-02|Cutting set for meat grinders or the like.
    AT522032A1|2020-07-15|Grinder with convexly curved grinding projections
    EP3202290A1|2017-08-09|Grinder, mill, device for preparing coffee with a mill and method of milling
    DE4231546A1|1994-03-24|Self-tapping screw
    DE202017104764U1|2017-09-06|Agitator for a stirred ball mill
    DE102011102386B3|2012-05-16|Grinding roller and a high-pressure roller mill
    EP1558851A1|2005-08-03|Screw for hard materials
    DE102017118051A1|2018-08-30|Agitator for a stirred ball mill and method for producing such a stirrer
    DE102013008612A1|2014-11-27|gyratory crusher
    EP2514531B1|2014-06-11|Forming disc for processing food
    DE2943567A1|1981-04-30|Fragmenting machine which works by tearing - has cylinder with helically set square cross=section teeth on cylindrical stubs fitted radially
    DE3731500C2|1991-06-13|
    AT522490B1|2021-04-15|Grinder with blocking element
    DE102015108230A1|2015-12-31|Blade element for a refiner
    AT338598B|1977-09-12|DEVICE FOR GRINDING ANY REGRIND
    DE2814778C3|1982-01-14|Shredding machine for bulk materials
    EP3515602B1|2019-11-06|Fine grinder
    EP1994989A2|2008-11-26|Cutter blade and blade head and cutter with cutter blade
    DE3815156C2|1992-04-30|
    DE2444152A1|1976-03-25|Self feeding grindstones for cereal mill - have channels in surface extending with decreasing depth outwardly |
    DE102011052795A1|2012-02-23|Comminution device for free-flowing e.g. grains for feeding animals, has wedge surfaces including profiles that run between outer periphery and inner periphery of one wedge surface
    WO2005107950A1|2005-11-17|Classifier mill and component for such a mill
    同族专利:
    公开号 | 公开日
    AT522032B1|2021-11-15|
    EP3897319A1|2021-10-27|
    CA3121686A1|2020-06-25|
    WO2020124114A1|2020-06-25|
    US20220000313A1|2022-01-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE29506788U1|1995-04-21|1995-08-17|Gass Peter|Grinder for crushing granular material such as grain, coffee, pepper, salt or sugar|
    DE102016106597A1|2015-11-20|2016-09-15|Merschbrock Vermietung & Verpachtung GmbH & Co. KG|spice mill|
    DE102016101839A1|2016-02-03|2017-08-03|Eugster/Frismag Ag|Grinder, mill, coffee preparation device with mill and grinding process|
    DE202006004568U1|2006-03-22|2006-06-08|Uni-Splendor Corp.|Coffee machine has spring-loaded sealing plate which fits over coffee bean inlet on milling unit and prevents steam from brewing chamber from entering it, magnetic valve with operating lever opening plate when required|
    AT510147B1|2011-01-11|2012-02-15|Joma Kunststofftechnik Gmbh & Co Kg|SPICE MILL WITH A GRINDING|
    WO2017196507A1|2016-05-07|2017-11-16|Seckel Brian|Herb grinder|AT522681B1|2019-10-18|2021-01-15|Joma Kunststofftechnik Gmbh|Upper part for a spice grinder|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA51128/2018A|AT522032B1|2018-12-18|2018-12-18|Grinder with convex curved grinding projections|ATA51128/2018A| AT522032B1|2018-12-18|2018-12-18|Grinder with convex curved grinding projections|
    CA3121686A| CA3121686A1|2018-12-18|2019-12-18|Grinding mill having convexly curved milling projections|
    PCT/AT2019/060440| WO2020124114A1|2018-12-18|2019-12-18|Grinding mill having convexly curved milling projections|
    EP19832273.7A| EP3897319A1|2018-12-18|2019-12-18|Grinding mill having convexly curved milling projections|
    US17/292,936| US20220000313A1|2018-12-18|2019-12-18|Grinding mill having convexly curved milling projections|
    [返回顶部]