EP3209413A1 - Stirring tool and stirrer comprising a tool of said type - Google Patents
Stirring tool and stirrer comprising a tool of said typeInfo
- Publication number
- EP3209413A1 EP3209413A1 EP15767539.8A EP15767539A EP3209413A1 EP 3209413 A1 EP3209413 A1 EP 3209413A1 EP 15767539 A EP15767539 A EP 15767539A EP 3209413 A1 EP3209413 A1 EP 3209413A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stirring
- nose
- tool
- rotation
- spokes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003756 stirring Methods 0.000 title claims abstract description 321
- 239000000203 mixture Substances 0.000 claims abstract description 37
- 239000004033 plastic Substances 0.000 claims description 9
- 239000004952 Polyamide Substances 0.000 claims description 3
- 229920002647 polyamide Polymers 0.000 claims description 3
- 230000033001 locomotion Effects 0.000 description 11
- 239000000470 constituent Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000002537 cosmetic Substances 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000012258 stirred mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000001665 trituration Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/113—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller
- B01F27/1132—Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller with guiding tubes or tubular segments fixed to and surrounding the tips of the propeller blades, e.g. for supplementary mixing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
- B01F27/806—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle with vertical displacement of the stirrer, e.g. in combination with means for pivoting the stirrer about a vertical axis in order to co-operate with different receptacles
Definitions
- the invention relates to a stirring tool and a stirring device with such a stirring tool.
- EP 2 659 958 A1 discloses a stirring tool with which medicinal, pharmaceutical or cosmetic products are prepared in a stirred vessel.
- a stirring result is improved when stirring spokes are arranged offset from one another in the direction of a rotation axis of a stirring tool.
- the stirring spokes are designed in such a way that a respective area center of gravity of adjacent stirring spokes along the axis of rotation are arranged offset from one another along a virtual circular path about the axis of rotation of the stirring tool.
- the staggered arrangement results in particular from the fact that the center of gravity of adjacent stirring spokes relative to the axis of rotation have different height positions.
- one each Rownspeiche arranged within a plane which is oriented in particular perpendicular to the axis of rotation.
- a stirring spoke intersects a plane oriented perpendicular to the axis of rotation at least once. Opposite a plane oriented perpendicular to the axis of rotation, the stirring spoke can be arranged inclined. It is also conceivable that the stirring spoke is at least partially curved relative to the plane oriented perpendicular to the axis of rotation.
- stirring spokes of different cross-sectional shape are each arranged symmetrically with respect to a center plane of the stirring tool, wherein the center plane is oriented perpendicular to the axis of rotation.
- a Rownspeiche has two parallel to each other and along the axis of rotation arranged spaced Rhackspeichenlamellen, which are in particular identical.
- the spaced arrangement of the stirring spoke lamellae defines a stirring spoke gap.
- a stirring spoke following in the direction of rotation can, for example, have the contour of the stirring spoke gap or at least one contour similar to the stirring spoke gap.
- Such a stirring spoke arrangement is also an offset stirring spoke arrangement in the sense of the present patent application.
- a mixture consists of at least two different constituents, it being possible for the constituents to have different consistencies and, in particular, for a first constituent to be solid and for a second constituent to be liquid. It is also possible that both ingredients are solid or both ingredients are liquid.
- the ingredients can also be pasty.
- the constituents may be selected such that the solubility of the one constituent in the other constituent is not or not sufficiently given.
- the mixture is in particular a medical, pharmaceutical or cosmetic product.
- the completely stirred mixture is in particular a liquid or pasty mass, in particular an ointment.
- the mixture may also be in the form of a gel or in another form and / or consistency.
- the mixture may be in the form of a suspension or emulsion.
- the stirring tool further comprises a connecting element in the form of a hub for connecting the stirring tool with a stirring drive.
- a stirring drive may be a shaft which transmits a stirring movement, that is to say a rotational movement, from the stirring device to the stirring tool.
- the shaft can be coupled, for example via a transmission to an electric motor.
- the stirring tool further comprises a carrier ring, which in particular encloses the connecting element.
- the carrier ring is arranged coaxially with the hub.
- the stirring spokes are arranged between the connecting element and the carrier ring.
- the stirring tool has six stirring spokes up. It is also possible that more than six or less than six stirring spokes are provided.
- the stirring spokes are arranged at equal intervals relative to a rotation about the axis of rotation.
- two stirring spokes are arranged diametrically opposite the axis of rotation. It is advantageous if an even number is provided at Rrockspeichen, so two, four, six, eight, ten, twelve, etc. Through the Rrockspeichen the connecting element and the support ring are firmly connected.
- the stirring tool has a high rigidity and stability. The rotational movement of the stirring tool introduced at the connecting element is reliably transmitted to the carrier ring via the stirring spokes.
- At least one radially projecting stirring nose is arranged on the carrier ring.
- the stirring nose is provided on an outer cylinder jacket surface of the carrier ring.
- the stirring nose serves in particular for the defined abutment of the stirring tool on an inner surface of a stirring vessel.
- a stirred vessel in particular a jar, typically has a hollow cylindrical shape.
- the at least one stirring nose allows for elastic engagement on the inner surface of the jar.
- a maximum outer diameter of the stirring tool can be greater than an inner diameter of the jar.
- an elastic deformation of the stirring tool is possible in such a way that the at least one stirring nose bears against the inner surface of the jug with a defined radial prestress.
- an elastic concern of the stirring nose on the inner surface of the jar is not absolutely necessary.
- the stirring nose allows stripping of the mixture from the inner surface of the jar. Unwanted deposits on the inner surface are avoided.
- a stirring tool in which at least one first stirring spoke terminates flush with an upper side of the stirring tool and / or in which at least one second stirring spoke terminates flush with an underside of the stirring tool enables reliable mixing of the mixture within the jar. This ensures that the at least one first stirring spoke can rest on a cover inner surface of the jar, in particular of a jar lid, during a stirring process. Unwanted deposits on the lid inner surface are avoided. Accordingly, the at least one second stirring spoke during the
- a stirring tool in which the stirring spokes each have a Rillonspe, which is designed in a straight line, has a simplified shape.
- the rectilinear Rlickspeichen allow in particular an increased structural stability.
- the stirring spokes allow for a required elasticity and flexibility to allow an elastically deformed abutment of the stirring nose on the inner surface of the jar.
- the stirring spokes are in particular radially to the axis of rotation, so radiating to the connecting element executed.
- a stirring tool which has been produced from plastic, in particular from polyamide, in particular by plastic injection molding, allows a high degree of flexibility with regard to the geometric design.
- the plastic from which the stirring tool is made is in particular a ther- thermoplastic plastic.
- the plastic is characterized by a high resistance to chemicals and is in particular comparatively hard, abrasion-resistant and temperature-resistant, in order to withstand the process conditions during the stirring.
- a stirring tool made of such a plastic has a high resistance to wear and good sliding properties.
- the stirring tool is manufactured in one piece.
- the stirring tool may have a multiplicity of geometric secondary shaped elements which bring about the improved stirring result.
- the secondary form elements can be formed in one process step, namely by plastic injection molding. It is not necessary to use separating and / or joining manufacturing processes.
- a stirring tool in which the at least one stirring nose is arranged in relation to an angle of rotation about the axis of rotation, in particular centrally, between two stirring spokes, enables improved structural flexibility of the stirring tool.
- the at least one stirring nose is arranged on a free portion of the carrier ring.
- the free portion of the carrier ring extends between two adjacent Rhackspeichen.
- the free portion of the carrier ring is unsupported, in particular in the radial direction relative to the axis of rotation, that is free, and thus structurally elastic.
- a stirring tool with a plurality of, in particular six, stirring lugs, which are arranged evenly spaced in particular in the circumferential direction of the stirring tool, wherein in particular two Rixnasen are arranged diametrically opposite with respect to the axis of rotation, ensures reliable removal of the mixture from the inner surface of the jar by means of Rlicknasen.
- the Rlickspeichen endeavor is at least 30% of Rchanmaschinection Little, in particular at least 50%, in particular at least 60%, in particular at least 70% and in particular at least 75% of Rlickwerkmaschinemaschine Why.
- the stirring spokes each have one, in particular exclusively, convex cross-sectional shape, unwanted deposits of the mixture and / or constituents thereof on the stirring spokes are excluded.
- the cross-sectional shape is oriented perpendicular to a Rownspeichenachse.
- the cross-sectional shape is in particular lenticular or elliptical.
- the lens mold is arranged in particular inclined with respect to a Rfordwerkmaschinemaschinemaschinemaschinence Diagram.
- the cross-sectional shape having, for example, a major axis is disposed at a non-zero inclination angle, which is, for example, 30 degrees, with respect to the stirring tool surface.
- the angle of inclination may also be greater than or less than 30 °, in particular depending on the mixture to be produced.
- a stirring tool in which the contour of the at least one stirring nose is exclusively convex, prevents undesired accumulation of material and / or deposits.
- a stirring tool wherein the at least one stirring nose has a abutment portion for abutment with an inner wall of the stirring vessel, wherein the abutment portion has a Anliegeabêts concede which is smaller than a Rlickwerkmaschinesch, allows improved mixing and trituration of the mixture.
- a Anliegeabschmtts so an extension of the abutment portion in the circumferential direction of the stirring tool, can be set differently.
- An abutment surface of the contact section on the inner surface of the jar results from the product of the abutment section height and the abutment removal length. It is conceivable that the abutment removal length is selected to be infinitesimally small. In this case, there is a line contact between abutting section and inner surface of the jar, ie no surface contact.
- the contact section is realized by a contact edge, which is oriented parallel to the axis of rotation of the stirring tool. In particular, thorough mixing is ensured even in a region close to the container wall.
- the adjoining section height is in particular at most 30% of the stirrer lifting height. This ensures that the stirring nose rests only partially on the inner surface of the jar.
- the stirring nose serves to strip the mixture on the inner surface of the jar.
- the stirring nose also serves to mix and stir the mixture, in particular in a region between the carrier ring of the stirring tool and the inner surface of the jar.
- the abutment edge can be oriented parallel to the inner surface of the jar, so be curved.
- the contact section is in particular centered arranged between two adjacent stirring spokes on the carrier ring.
- Such a stirring tool exhibits improved structural elasticity.
- the stirring spokes act as radial support elements.
- the carrier ring is comparatively flexible.
- An elastic yielding of the carrier ring and the stirring nose is possible when the stirring nose is pressed against the inner surface of the jar.
- the increased structural elasticity and structural flexibility are particularly advantageous for small-sized Einwegerielrrocker.
- a stirring tool, in which the at least one stirring nose within the contact section has a maximum stirring nose depth, which defines in particular a maximum stirring tool diameter, ensures reliable stripping of the mixture from the inner surface of the jug by means of the stirring tabs.
- a stirring tool in which the at least one stirring nose has a mixing section for mixing the mixture, wherein the at least one stirring nose within the mixing section has a reduced stirring nose depth, which is in particular smaller than a maximum stirring nose depth, enables an improved mixing of the mixture on an outer side of the carrier ring .
- the mixing section results due to the reduced Rlicknasenianae an annular gap between the stirring nose and the inner surface of the jar.
- the mixture can flow around the stirring tool during a rotary movement of the stirring tool.
- a circumferential flow is possible.
- Such a flow is excluded in a stirring tool according to EP 2 659 958 AI, since the Rlicknasen endeavor is identical to the Rckenmaschinemaschinemaschine Kunststoffière.
- the mixing section at least in sections along the outer circumference of the stirring tool parallel to the abutment portion.
- the mixing section has a mixing section height which is at least partially smaller than the stirrer nozzle height.
- the height of the stirring tool results as the sum of the contact section height and the mixing section height.
- the mixing section may extend longer along the outer periphery of the carrier ring than the abutment section. This means that the mixing section is designed, for example, along the outer circumference in a first section overlapping the contact section.
- the first section may be followed by a second section of the mixing section, wherein the second section extends in particular over the entire Rlickmaschinemaschinesch.
- the second section of the mixing section has a reduced outer diameter, in particular compared to the contact section, so that a circumferential flow is made possible between the second section of the mixing section and the inner surface of the jar.
- An agitating tool in which the at least one stirring nose has an inflow area, in particular in the direction of rotation of the agitating tool at the front of the stirring nose, for the mixture to flow into the stirring nose, wherein the at least one stirring nose has a reduced stirring nose depth along the inflow face, which in particular is smaller As a maximum stirring nose depth, allows for improved flow of the mixture.
- the mixing is additionally improved.
- the reduced Rönnasentiefe along the direction of rotation of the stirring tool is variable, especially along the direction of rotation increasingly, in particular non-linear increasing.
- the mixture in the region of an inflow surface having an inflow section is a circumferential direction fed radially tapered annular gap. Due to the reduced annular gap between the stirring tool and the inner surface of the cake results in an increased flow velocity for the mixture, whereby the stirring result is further improved.
- An agitating tool in which a circumferential angle of the inflow section related to the axis of rotation is at most 85% of a circumferential angle of the at least one stirring nose additionally has improved inflow conditions for the mixture.
- a stirring device equipped with a stirring tool according to the invention enables an improved stirring result.
- the stirring tool is arranged inside a mixing vessel, the jar.
- the stirring tool remains in the jar after completion of the stirring process.
- the stirring tool is provided in particular as a disposable tool. Nevertheless, it is possible to remove the stirring tool from the stirring vessel after the stirring has taken place and to use it for a further stirring, for example after a cleaning.
- the stirring tool is driven by a stirring drive.
- the stirring tool is attached, for example, to a stirring shaft.
- a Stirrzezehehehehe is smaller than a Rntongefäßière.
- a relative movement between stirring tool and Stirring vessel along the axis of rotation of the stirring tool allows complete mixing of the mixture in the mixing vessel.
- Fig. 1 is a schematic representation of a mixer with a
- Fig. 2 is a perspective view of an inventive
- FIG. 3 is a bottom view of the stirring tool in Fig. 2
- Fig. 4 is a cross-sectional view taken along section line IV-IV in Fig. 3,
- FIG. 5 shows a cross section along section line V-V in Fig. 3,
- FIG. 6 is an enlarged sectional view of a stirring nose according to detail VI in Fig. 2,
- FIG. 8 is a view according to arrow VIII in Fig. 7,
- Fig. 10 is a sectional view along section line XX in Fig. 3
- Fig. 1 1 is a sectional view along section line XI-XI in Fig. 3 and
- FIG. 12 is a sectional view taken along section line XII-XII in FIG.
- An agitator 1 shown in Fig. 1 is used for stirring a mixture, in particular for medical, pharmaceutical or cosmetic products.
- the stirrer 1 has a substantially C-shaped frame 2 with a base 3, a vertical column 4 and a support arm 5.
- the support arm 5 is oriented in particular horizontally and in particular parallel to the base 3.
- the support arm 5 carries a stirring drive 6, which is designed as an electric motor.
- the stirring drive 6 is coupled in particular via a gear with a stirring shaft 7.
- a rotary movement of the stirring drive 6 is transmitted to the shaft 7 and a stirring tool 8 connected thereto.
- the rotational movement of the shaft 7 is indicated by the arrow 9.
- the shaft 7 is guided into a mixing vessel 10, which is also referred to as a jar, and connected to the stirring tool 8 arranged in the jar.
- the jar has a bottom 1 1, a cylindrical side wall 12 and a lid 13.
- the cover 13 is held in a lifting receptacle 15 by means of a holding section 14.
- the lifting receptacle 15 is designed as a cantilever and is vertically displaceable along the vertical column 4, as indicated by a double arrow.
- a driven linear guide 15a is provided, for example a spindle drive.
- the stirring tool 8 is introduced into the mixing vessel 10 and the mixing vessel 10 is closed by means of the cover 13.
- the stirring process ie the mixing of the mixture, takes place in that the Stirring tool 8 along the direction of rotation 9 is driven.
- a vertical movement of the lifting receptacle 15 with the mixing vessel 10 attached thereto can take place.
- a relative movement in the vertical direction between the mixing vessel 10 and stirring tool 8 is ensured.
- the stirring tool 8 is explained in more detail in FIGS. 2 to 12.
- the stirring tool 8 is made of plastic and in particular as a polyamide.
- the surface of the stirring tool 8 is smooth and in particular high gloss. As a result, the risk of undesired adhesion of material to the stirring tool 8 is reduced.
- the stirring tool 8 comprises a connecting element 16 in the form of a hub. With the connecting element 16, the stirring tool 8 can be connected to the shaft 7 about a rotation axis 17.
- the axis of rotation 17 of the stirring tool 8 corresponds to the axis of rotation of the shaft 7.
- the agitating tool 8 is received and held coaxially on the shaft 7.
- the connecting element 16 is annular.
- On an inner side of the ring two locking elements 18 are provided which ensure a latching connection with corresponding recesses on the shaft 7.
- the stirring tool 8 is held on the shaft 7 with respect to a rotation about the rotation axis 17 and in the axial direction of the rotation axis 17.
- the latching elements 18 have a segment-like contour in a plane oriented perpendicular to the rotation axis 17.
- the stirring tool 8 also has a carrier ring 19.
- An inner circumferential surface 22 of the carrier ring 19 may have a Aushebeschräge. This means that the inner lateral surface 22 has a conical shape relative to the axis of rotation 17, wherein the cone angle is smaller than 5 ° and in particular at least 0.5 °. The drafts facilitates demolding of the stirring tool 8 from a plastic injection molding tool.
- the carrier ring 19 is arranged coaxially with the connecting element 16.
- the carrier ring 19 is arranged coaxially to the axis of rotation 17.
- the support ring 19 surrounds the connecting element 16.
- the support ring 19 and the connecting element 16 are in a height direction, which is oriented parallel to the axis of rotation 17, the same height.
- the carrier ring 19 and the connecting element 16 set a Rlickwerkmaschine Kunststoff H w .
- the agitator height H w is 3 mm.
- the carrier ring 19 has a ring thickness s R of 2 mm.
- the ring strength s R is important for the structural elasticity of the carrier ring 19 and thus of the stirring tool 8.
- the structural elasticity of the stirring tool 8 is greater, the smaller the ring thickness s R.
- the ring thickness s R is to be selected smaller than 2 mm.
- the carrier ring 19 has a ring diameter D R , which is 54.4 mm according to the embodiment shown.
- the stirring tool 8 comprises three first stirring spokes 20 and three second stirring spokes 21, which are arranged alternately in the circumferential direction about the axis of rotation 17.
- the first stirring spokes 20 are each arranged flush with an upper side corresponding to the Rfordtechnikmaschinegneoberil kaue 24, finally.
- the second stirring spokes 21 are arranged flush with a bottom 25 of the stirring tool 8. This means that two adjacent stirring spokes 20, 21 are arranged offset in the direction of the axis of rotation 17 to each other. Two adjacent stirring spokes 20, 21 have a height offset.
- the second stirring spokes 21 are inclined at an angle to the upper tool.
- the stirring spokes 20, 21 are arranged at a distance equal to a rotation angle about the rotation axis 17.
- the angle between two adjacent stirring spokes 20, 21 is 60 °.
- the intermediate angle between two adjacent stirring spokes 20, 21 may be selected larger or smaller depending on the number of stirring spokes.
- the stirring spokes 20, 21 each have a perpendicular to the Rownspeichenachse 23 oriented cross-sectional shape, which is designed exclusively convex.
- the cross-sectional shape is designed lenticular.
- the lenticular cross section has a lens length L L and a lens width L B.
- a main axis of the cross-sectional shape oriented along the lens length L L is inclined at an inclination angle w with respect to a stirring tool surface 24.
- L L 4 mm
- the stirring spokes 20, 21 have a Rlickspeicheniere H s , which is smaller than the Rlickwerkmaschine Wegière H w .
- the Rrockspeichensburg H s is 70% of the Rmakemaschinemaschine Kunststoff H w .
- the stirring tool diameter D w is determined by the stirring lugs 26, in particular by their maximum stirring nose depth T N, inax . According to the embodiment shown, the maximum stirring tool diameter D R is 57.3 mm.
- the stirring nose depth T N is oriented in the radial direction with respect to the axis of rotation 17.
- the stirring lugs 26 are integrally formed in each case in a section 27 between two stirring spokes 20, 21 on the support ring 19. This means that the stirring lugs 26 and the stirring spokes 20, 21 are arranged offset to one another.
- a stirring nose 26 extends along a stirring nose opening angle a N of 35 °.
- a free area with a free space opening angle a F is accordingly 25 °. This means that the stirring nose 26 along the outer periphery of the support ring 19, in particular with respect to an opening angle of the rotation axis 17, extends longer than the free space between two adjacent Rlick- nasen 26.
- Each two Rhaknasen 26 are arranged diametrically opposite to the axis of rotation 17 opposite ,
- the stirring tool 8 is reliably supported by the stirring lugs 26 on the inner surface of the jar.
- the stirring lugs 26 each have an exclusively convex contour.
- Each stirring nose 26 has a contact section 28, a mixing section 29 and an inflow section 30.
- the inflow region 30 has an inflow surface 31.
- the contact section 28 serves for abutment against an inner wall of the mixing vessel 10.
- the contact section 28 has an abutment section height H A up.
- the abutment section height H A is smaller than the agitator height H w .
- the abutment section height H A is according to the embodiment shown 30% of the Rlicktechnik Weg Kunststoff H w .
- the abutment portion 28 is an abutment edge.
- the contact section 28 is linear.
- the line is oriented parallel to the axis of rotation 17. In the circumferential direction about the axis of rotation 17, the abutment portion 28 according to the embodiment shown only an infinitesimal propagation.
- the abutting portion 28 is according to the embodiment shown in FIG.
- the contact section 28 divides the free section 27 approximately in the ratio 1: 2.
- the contact section 28 can also be arranged centrally on the free section 27 between two adjacent spokes 20, 21.
- the abutting portion 28 may extend along an opening angle of, for example, 2 ° to 15 °.
- the stirring nose 26 has the maximum stirring nose depth T N; max on.
- the maximum stirring nose depth T N, inax is 1.4 mm.
- the abutment portion 28 is designed as a separating edge between the mixing section 29 and the flow surface 31.
- the stirring nose depth T N is variable along the direction of rotation 9. In the direction of rotation 9 at the front of the stirring nose 26, the inflow surface 31 is arranged. In the region of the inflow section 30, the stirring nose depth increases to the maximum stirring nose depth T N, inax at the transition to the contact section 28.
- the inflow surface 31 extends within an opening angle aAn, which is 30 ° according to the embodiment shown.
- the inflow surface 31 extends, starting from the carrier ring 19, counter to the direction of rotation 9, first over the entire stirrer height H w , with a section of reduced height following.
- the reduced height corresponds in particular to the abutment section height H A.
- the mixing section 29 extends within the opening angle a A in the circumferential direction. According to the embodiment shown, the opening angle a A is 5 °.
- the contact section 28 has the adjacent section height H A.
- the inflow section 30 has an inflow section height H 1. The sum of the two section heights, ie the contact section height H A and the inflow section height H 1, corresponds to the stirrer height H w .
- the mixing section 29 and / or the onflow section 30 are characterized in that a gap is formed between an inner side of the stirring vessel and an outer cylindrical surface of the stirring tool 8. Below the contact section 28, where the maximum stirring nose depth T N, inax is present, the gap is formed by a radial depression of the stirring nose 26.
- the recess extends in the circumferential direction, starting from the abutment portion 28 both in and counter to the direction of rotation 9, below the abutment portion 28 with respect to the longitudinal axis 17.
- the recess is part of the Anströmabitess 30th
- the mixing section 29 has a first section with a mixing section height that substantially corresponds to the adjacent section height H A.
- the first section of the mixing section 29 adjoins the abutment section 28 directly opposite to the direction of rotation 9.
- a second subsection of the mixing section 29 adjoins the first subsection.
- the mixing section 29 has in the second section as the height of the Rlickmaschinemaschine Weg Kunststoff H w . With the second portion of the mixing section 29 is integrally formed on the support ring 19.
- Fig. 9 shows a cross section through the carrier ring 19 along the section line IX-IX.
- the cutting line is set outside of the stirring nose 26. Accordingly, the mixing section 29 is visible.
- the abutment portion 28 with the abutment portion height H A is provided in an area shown at the top in FIG. 10.
- the inflow section 30 is provided in an area shown at the top in FIG. 10.
- the section line XX is arranged through the line-shaped abutment section 28 at the maximum stirring nose depth T N, inax .
- the Anströmabterrorism 30 is disposed in this area below the abutment portion 28.
- the cutting line XI-XI is arranged in the region of the stirring nose 26 in which the stirring nose depth is reduced overall and in particular along the entire stirring die height H w .
- the section line XII-XII is in the direction of rotation 9 in front of the stirring nose 26, which is therefore not recognizable.
- the following second stirring spoke 21 can be seen.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15767539T PL3209413T3 (en) | 2014-10-20 | 2015-09-25 | Stirring tool and stirrer comprising a tool of said type |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014221239.1A DE102014221239B3 (en) | 2014-10-20 | 2014-10-20 | Stirring tool and mixer with such a tool |
PCT/EP2015/072119 WO2016062498A1 (en) | 2014-10-20 | 2015-09-25 | Stirring tool and stirrer comprising a tool of said type |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3209413A1 true EP3209413A1 (en) | 2017-08-30 |
EP3209413B1 EP3209413B1 (en) | 2018-06-20 |
Family
ID=54185982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15767539.8A Not-in-force EP3209413B1 (en) | 2014-10-20 | 2015-09-25 | Stirring tool and stirrer comprising a tool of said type |
Country Status (5)
Country | Link |
---|---|
US (2) | US10493413B2 (en) |
EP (1) | EP3209413B1 (en) |
DE (1) | DE102014221239B3 (en) |
PL (1) | PL3209413T3 (en) |
WO (1) | WO2016062498A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108435025A (en) * | 2018-03-20 | 2018-08-24 | 蔡镇杰 | A kind of medical oral section tooth mould raw material quick agitator and stirring means |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014221239B3 (en) | 2014-10-20 | 2015-11-05 | Sms Elap Gmbh & Co. Kg | Stirring tool and mixer with such a tool |
USD891634S1 (en) | 2018-09-04 | 2020-07-28 | Reflex Medical Corp. | Agitator for pharmaceutical compounding |
CN111729573A (en) * | 2019-11-08 | 2020-10-02 | 韩山师范学院 | High-speed dispersion machine for mixing multiple chemical solvents |
CN111545155A (en) * | 2020-05-25 | 2020-08-18 | 南京诺知信息科技有限公司 | Reaction device for laboratory for preparing terephthalic acid |
SE545579C2 (en) * | 2022-09-15 | 2023-10-31 | Lument Ab | Contrast agent mixer with splash guard |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE925945C (en) | 1942-06-16 | 1955-04-04 | Ludwig Schoeffel | Device for dissolving, homogenizing, mixing and triturating liquid and spreadable materials |
DE1795244U (en) | 1959-06-20 | 1959-09-10 | Henschel Werke G M B H | STIRRING TOOL. |
US4506989A (en) * | 1984-05-22 | 1985-03-26 | Reh Carter K | Vortex mixer |
DE4216252C2 (en) | 1992-05-16 | 1994-05-26 | Albrecht Konietzko | Arrangement with a stirrer for mixing pharmaceutical and / or cosmetic ointments, pastes, creams, jellies or emulsions |
DE19735539B8 (en) | 1997-08-16 | 2010-09-16 | Albrecht Konietzko | Device for producing mixtures in a stirred vessel |
US6830369B2 (en) * | 2002-04-17 | 2004-12-14 | Enersave Fluid Mixers Inc. | Mixing apparatus |
US7513678B2 (en) * | 2003-07-10 | 2009-04-07 | Venus Donald W | Rotary mixing device in molded packaging |
DE202004008573U1 (en) | 2004-05-26 | 2004-08-12 | Konietzko, Albrecht | Arrangement for the preparation of recipe mixtures |
EP1911511A4 (en) | 2005-07-25 | 2011-10-19 | Tokyo Printing Ink Mfg Co Ltd | Dispersing device and dispersing method, and method of manufacturing dispersion |
EP2659958B1 (en) * | 2012-05-03 | 2015-01-21 | WEPA Apothekenbedarf GmbH & Co.KG | Cogged mixing element |
DE102014221239B3 (en) | 2014-10-20 | 2015-11-05 | Sms Elap Gmbh & Co. Kg | Stirring tool and mixer with such a tool |
-
2014
- 2014-10-20 DE DE102014221239.1A patent/DE102014221239B3/en not_active Expired - Fee Related
-
2015
- 2015-09-25 WO PCT/EP2015/072119 patent/WO2016062498A1/en active Application Filing
- 2015-09-25 US US15/520,536 patent/US10493413B2/en not_active Expired - Fee Related
- 2015-09-25 PL PL15767539T patent/PL3209413T3/en unknown
- 2015-09-25 EP EP15767539.8A patent/EP3209413B1/en not_active Not-in-force
-
2019
- 2019-11-27 US US16/697,624 patent/US10758876B2/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108435025A (en) * | 2018-03-20 | 2018-08-24 | 蔡镇杰 | A kind of medical oral section tooth mould raw material quick agitator and stirring means |
CN108435025B (en) * | 2018-03-20 | 2021-02-05 | 顾伟 | Device and method for quickly stirring dental model raw materials for medical stomatology department |
Also Published As
Publication number | Publication date |
---|---|
US20170312708A1 (en) | 2017-11-02 |
PL3209413T3 (en) | 2018-12-31 |
US10758876B2 (en) | 2020-09-01 |
EP3209413B1 (en) | 2018-06-20 |
WO2016062498A1 (en) | 2016-04-28 |
DE102014221239B3 (en) | 2015-11-05 |
US20200094203A1 (en) | 2020-03-26 |
US10493413B2 (en) | 2019-12-03 |
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