EP3946703A1 - Mischer mit verschlussdeckel - Google Patents
Mischer mit verschlussdeckelInfo
- Publication number
- EP3946703A1 EP3946703A1 EP20717573.8A EP20717573A EP3946703A1 EP 3946703 A1 EP3946703 A1 EP 3946703A1 EP 20717573 A EP20717573 A EP 20717573A EP 3946703 A1 EP3946703 A1 EP 3946703A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- joint
- mixer according
- closure cover
- shaft
- bar linkage
- 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
- 230000008878 coupling Effects 0.000 claims description 29
- 238000010168 coupling process Methods 0.000 claims description 29
- 238000005859 coupling reaction Methods 0.000 claims description 29
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 description 5
- 238000011109 contamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 238000004519 manufacturing process 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
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
- B01F35/451—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor by rotating them about an axis parallel to the plane of the opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/80—Mixers with rotating receptacles rotating about a substantially vertical axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/45—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor
- B01F35/452—Closures or doors specially adapted for mixing receptacles; Operating mechanisms therefor by moving them in the plane of the opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
- B01F35/751—Discharging by opening a gate, e.g. using discharge paddles
Definitions
- the present invention relates to a mixer with a mixing container held in a machine stand, wherein the mixing container has an outlet opening in its bottom and a closure cover is provided which moves between a closed position in which the closure cover closes the outlet opening and an open position, in which the closure lid does not close the outlet opening, can be moved back and forth.
- Such mixing devices are known. They often have a container that can be rotated about a container axis.
- a rotatable mixing tool is often arranged in the interior of the container. The mixing tool can be rotated about a mixer shaft arranged parallel to the axis of rotation of the container. Mixing blades are attached.
- FIGS. 1 and 2 show essentially corresponds to the mixing device known from WO 201 1/128435 A1.
- FIG. 1 shows a mixing container in a plan view
- FIG. 2 shows a sectional view through the mixing device.
- the cylindrical mixing container 101 has an eccentrically arranged, overhung mixing tool 102 on a central shaft 103 with laterally arranged mixing blades 104 and a stationary wall / floor scraper 105 held vertically from above. On the lowest wing plane of the mixing tool 102, vertically downwardly projecting floor knives 106 are attached, which work at a small distance from the surface of the container floor.
- the emptying opening 107 is located in the center of the mixing container 101.
- the emptying opening 107 can be closed with the closure cover 108.
- the closure cover 108 is connected to a support arm 110 via a bearing fork and the bearing pin 109 and is thus pivotable about the tilting axis of the bearing pin 109.
- the support arm 1 10 is rotatably mounted on the pivot shaft 1 1 1.
- a return element not shown, ensures that the closure cover 108 assumes a certain position relative to the support arm 110 without external forces.
- the discharge port 107 When the discharge port 107 is closed, i. the cap 108 is positioned within the emptying opening 107, the cap 108 closes flush with the bottom of the container. This creates a flat floor surface on which the mix is moved. This ensures efficient mixing of the entire material to be mixed, since there is no dead space above the closure cover that cannot be reached by the bottom knife 106.
- closure lid to be flush with the container base make it difficult to design and guide the closure lid.
- the cap would have to be moved linearly down to open the emptying opening.
- this would have the consequence that, due to the arrangement of the Entleeröff voltage in the bottom of the container, the material to be mixed would flow over all edge surfaces of the closure cover and possibly even contaminate the drive of the closure cover.
- a pile of material to be mixed would remain on the flat closure cover and not flow out with the remaining material to be mixed.
- a lateral pivoting out of the closure cover from the emptying opening is not possible due to the essentially cylindrical or truncated cone shaped contact surfaces of the closing cover and the emptying opening.
- the cylindrical contact surfaces of the closure lid and the emptying opening are particularly tight. Due to the thickness of the mixing container base and the wear layer attached to it, the closure lid must, however, be moved a very long way parallel to the inside of the emptying opening along the cylindrical contact surfaces when it is opened before it can turn into a pivoting movement. Preferably, the top of the cap swivels down in the direction of the axis of the emptying opening in order to allow the mixed material located thereon to flow off completely.
- the drive of the closure cover allows a pivoting movement both about the axis 11 and about the axis 109 in connection with the restoring element.
- the known closure cover with return element as shown for example in EP1 103492A1, is complex to manufacture and not easy to clean. Due to the rotary movement of the closure cap, the closure cap must have a certain amount of play within the emptying opening in order to be able to pivot it out of the emptying opening. The resulting gap means that mixed material components can escape from the container even when the emptying opening is closed. In addition, the cap must be cleaned very thoroughly after each emptying process to ensure that that it can be positioned again in the opening and seals reliably. Furthermore, mixed material can collect in the area of the pivot axis 109 located below the closure cover and hinder the pivoting process.
- this object is achieved in that the closure cover is connected to the machine frame via a four-bar linkage with four swivel joints, a first and a second swivel joint of the four-bar linkage on the machine frame and a third and a fourth swivel joint of the four-bar linkage on the closure cover.
- the third and fourth swivel joints can be arranged directly on the closure cover.
- another element on which the third and fourth swivel joints are arranged could also be attached to the closure cover.
- the first joint of the four-bar linkage is connected to the fourth joint of the four-bar linkage via a crank element.
- the joint axes of the first and fourth joint are spaced apart from one another by a distance c.
- the second joint of the four-bar linkage is connected to the third joint of the four-bar linkage via a lever element.
- the joint axes of the second and third joint are spaced apart from one another by a distance a.
- the third joint of the four-bar linkage is connected to the fourth joint of the four-bar linkage via a coupling element of length f, the hinge axes of the third and fourth joint being spaced apart from one another by a distance b.
- the coupling element can therefore be longer than the distance b.
- the joint axes of the first and second Gelen kes are spaced apart by a distance g.
- the closure cover is attached to the coupling element.
- the coupling element can extend not only between the third and fourth joint, but also as far as the closure cover.
- the third joint can be arranged on the end of the coupling element opposite the closure cover.
- a preferred embodiment provides that either the joint axis of the second joint is designed as a shaft, a drive for rotating the shaft being provided and the lever element being attached to the shaft in such a way that the lever element rotates around the joint axis of the joint when the shaft is rotated, or preferably the joint axis of the first joint is designed as a shaft, a drive for rotating the shaft is provided and the crank element is attached to the shaft in such a way that the crank element is rotates about the hinge axis of the joint when the shaft is rotated.
- the coupling element is arranged essentially perpendicular to the closure cover.
- the closure lid has a flat inner surface which, in the closed position, faces the interior of the mixing container, an outer surface which is opposite the inner surface, and a circumferential edge surface which connects the inner surface and the outer surface to one another.
- An arrangement of the coupling element perpendicular to the closure lid means that the coupling element is arranged perpendicular to the inner surface of the closure lid and does not extend into the interior of the mixing container.
- the joint axes of the third and fourth joint and the connection point at which the coupling element is connected to the closure cover can lie in a common plane that runs perpendicular to the outer surface and / or the inner surface of the closure cover.
- the length a is smaller than the length c. Because the lever element has a shorter length than the crank element, a movement is achieved which is initially essentially linear in order to move the closure cover out of the closure opening, and which then changes into a pivoting movement.
- e is the distance between the first and the second joint axis in a direction perpendicular to a straight line connecting the third and fourth joint axes.
- the first joint is arranged closer to the plane in which the outlet opening is located than the second joint.
- the fourth joint is closer to the closure cover than the third joint.
- a particularly preferred embodiment provides that in the closed position of the closure cover the crank element and the lever element run essentially parallel to one another. It is also preferred that in the closed position of the closure cover, the crank element and the lever element form an angle between 80 ° and 100 ° with the coupling element. It is also advantageous if the ratio of the length f of the coupling element to the distance b between the third and fourth joint axes is between 2 and 10.
- crank element and lever element are rod-shaped.
- the coupling element is preferably also rod-shaped.
- crank element, coupling element and lever element as well as the positions of the four joints are coordinated in such a way that when the closure cover is moved from the closed position to the open position, the projection of the edge of the closure cover, which faces the shaft, does not lie on the container bottom in the area of the outlet opening.
- the cover plate shields the four-bar gear from falling mix, which significantly increases the service life of the gear. In addition, the cleaning effort is less, since the joints are usually not soiled by mixed material.
- the closure cover is circular with a radius r, the coupling element preferably being connected to the closure cover in the center of the latter.
- the ratio a / e 0.9 ⁇ a / e ⁇ 20 and particularly preferably 1.0 ⁇ a / e ⁇ 10. This is particularly advantageous if c is approximately the sum of a and e corresponds to.
- the mixing container can be rotated about a mixing container axis and the four-bar gear is arranged in such a way that it does not rotate together with the mixing container about the mixing container axis.
- a straight line runs through the third and fourth hinge axes on the mixing container axis and through the center point of the closure lid.
- FIG. 1 shows a mixing container of the prior art in a plan view
- Figure 2 is a side section through the mixing device and the built therein
- Figure 3 is a perspective view from below of an embodiment according to the invention.
- FIG. 4 shows a perspective view of the embodiment of FIG. 3 with the closure open
- Figure 5 is a side sectional view of the embodiment of Figure 4.
- Figure 6 is a schematic representation of the four-bar linkage according to the invention.
- FIG. 3 shows a perspective view from below of an embodiment of the mixer according to the invention.
- the bottom of the cylindrical mixing container 1, which is rotatably mounted on a machine stand 2, can be seen.
- a Closure opening shown in which a closure cover 3 is arranged.
- the closure lid 3 is attached to a coupling element 4, on which the third hinge axis 10 and the fourth hinge axis 11 are arranged.
- FIG. 4 shows a perspective view of the mixer according to the invention with a closure cover in the (partially) open position.
- the closure cover 3 has an edge surface 13.
- the coupling element 4 is connected to the closure cover 3, which in the position shown is not exactly in the closed position.
- the closure cover is round and the coupling element is connected to the center point 12 of the circular shape of the closure cover 3.
- the outlet opening 5 is located at the bottom of the mixing container 1.
- the coupling element 4 is connected to the machine stand 2 via a crank element 7 as well as a lever element 6.
- a first swivel joint 8, on which the crank element engages, and a second swivel joint 9 on which the lever element engages, are attached to the machine stand.
- crank element 7 is driven by a corresponding drive, not shown, via a shaft via the swivel joint 8, so that the crank element 7 can be rotated about the joint axis of the shaft in order to move the closure cover 3 back and forth between the closed position and the open position . Furthermore, you can see the coupling element 4, on wel chem the third axis for the third rotary joint 10 and the axis for the fourth rotary joint 11 is located.
- FIG. 5 shows a side view of the mixer according to the invention according to FIG. 4 in the (partially) open position of the closure lid.
- FIG. 6 shows a schematic representation of the mechanism.
- the four-bar linkage has a first and a second swivel joint 8, 9, which are fastened to the machine frame 2.
- the third swivel joint 10 and the fourth swivel joint 11 are attached to the coupling element 4.
- the first swivel joint 8 is connected to the fourth swivel joint 11 via a crank element 7.
- the second rotary joint 9 is connected to the third rotary joint 10 via a lever element 6.
- the coupling element 4 not only connects the third swivel joint 10 and the fourth swivel joint 11, but extends as far as the closure cover 3 and there engages the center of the closure cover 12.
- the coupling element is perpendicular to the closure cover.
- the third rotary joint 10 is located at the end of the coupling element 4 opposite the closure cover 3.
- the point 13 of the edge surface of the closure lid 3, which faces the first and second swivel joints 8, 9, should if possible not move further from the first swivel joint in a direction parallel to the bottom surface of the mixing container when moving from the closed position to the open position Remove 8 to ensure that no mix falls onto the first swivel joint 8 or the second swivel joint 9.
- the closure cover 3 also covers the swivel joints 10 and 11 from contamination with mixed material.
- the lever element 6 has a length of 500 mm.
- the crank element has a length c of 600 mm.
- the coupling element 4 has a total length of 350 mm, the third and fourth swivel joints being spaced apart from one another by a distance b of 60 mm.
- the distance d between the first and the second pivot joint, like the distance b, is 60 mm.
- the sealing cover has a radius r of 250 mm.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019108869.0A DE102019108869A1 (de) | 2019-04-04 | 2019-04-04 | Mischer mit Verschlussdeckel |
PCT/EP2020/058738 WO2020201102A1 (de) | 2019-04-04 | 2020-03-27 | Mischer mit verschlussdeckel |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3946703A1 true EP3946703A1 (de) | 2022-02-09 |
EP3946703C0 EP3946703C0 (de) | 2023-12-06 |
EP3946703B1 EP3946703B1 (de) | 2023-12-06 |
Family
ID=70224332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20717573.8A Active EP3946703B1 (de) | 2019-04-04 | 2020-03-27 | Mischer mit verschlussdeckel |
Country Status (12)
Country | Link |
---|---|
US (1) | US20220161209A1 (de) |
EP (1) | EP3946703B1 (de) |
JP (1) | JP2022526391A (de) |
KR (1) | KR20210148298A (de) |
CN (1) | CN113646071B (de) |
AU (1) | AU2020250833A1 (de) |
BR (1) | BR112021016380A2 (de) |
CA (1) | CA3130624A1 (de) |
DE (1) | DE102019108869A1 (de) |
PL (1) | PL3946703T3 (de) |
WO (1) | WO2020201102A1 (de) |
ZA (1) | ZA202106235B (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018106188A1 (de) * | 2018-03-16 | 2019-09-19 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Vorrichtung zur Umsetzung einer Linearbewegung in einem stationären System in eine Drehbewegung um eine Schwenkachse in einem sich um eine Drehachse drehenden System |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE243627C (de) * | 1911-05-28 | 1912-02-19 | ||
FR692088A (fr) * | 1929-06-03 | 1930-10-30 | Cie Generale De Construction | Dispositif de vidange des trémies |
FR2243132B1 (de) * | 1973-09-12 | 1979-02-16 | Epluches Ateliers Construction | |
FI751164A (de) * | 1974-06-07 | 1975-12-08 | Gerdts Gustav F Kg | |
US5249861A (en) * | 1991-07-18 | 1993-10-05 | Kusel Equipment Co. | Apparatus for cooling, washing, draining, and blending liquid suspended materials |
DE19956939A1 (de) * | 1999-11-26 | 2001-05-31 | Eirich Maschf Gustav | Vorrichtung und Verfahren zum Verschließen einer Entleeröffnung in einem drehenden Behälter |
DE102010027885A1 (de) | 2010-04-16 | 2012-02-09 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Mischvorrichtung mit Verschleißschutzauskleidung |
CN105983356A (zh) * | 2015-03-06 | 2016-10-05 | 安徽新奇日化有限公司 | 一种卧式螺带混合机出料口开关装置 |
CN106955621B (zh) * | 2017-03-31 | 2023-07-28 | 珠海仕高玛机械设备有限公司 | 一种自调式旋转卸料门结构 |
-
2019
- 2019-04-04 DE DE102019108869.0A patent/DE102019108869A1/de active Pending
-
2020
- 2020-03-27 PL PL20717573.8T patent/PL3946703T3/pl unknown
- 2020-03-27 KR KR1020217035951A patent/KR20210148298A/ko not_active Application Discontinuation
- 2020-03-27 CA CA3130624A patent/CA3130624A1/en active Pending
- 2020-03-27 BR BR112021016380-8A patent/BR112021016380A2/pt unknown
- 2020-03-27 WO PCT/EP2020/058738 patent/WO2020201102A1/de unknown
- 2020-03-27 CN CN202080026762.2A patent/CN113646071B/zh active Active
- 2020-03-27 EP EP20717573.8A patent/EP3946703B1/de active Active
- 2020-03-27 US US17/599,617 patent/US20220161209A1/en active Pending
- 2020-03-27 AU AU2020250833A patent/AU2020250833A1/en active Pending
- 2020-03-27 JP JP2021558733A patent/JP2022526391A/ja active Pending
-
2021
- 2021-08-27 ZA ZA2021/06235A patent/ZA202106235B/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP3946703C0 (de) | 2023-12-06 |
CA3130624A1 (en) | 2020-10-08 |
JP2022526391A (ja) | 2022-05-24 |
AU2020250833A1 (en) | 2021-09-16 |
EP3946703B1 (de) | 2023-12-06 |
DE102019108869A1 (de) | 2020-10-08 |
PL3946703T3 (pl) | 2024-04-08 |
CN113646071A (zh) | 2021-11-12 |
CN113646071B (zh) | 2023-07-18 |
BR112021016380A2 (pt) | 2021-10-19 |
ZA202106235B (en) | 2023-06-28 |
KR20210148298A (ko) | 2021-12-07 |
US20220161209A1 (en) | 2022-05-26 |
WO2020201102A1 (de) | 2020-10-08 |
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