EP3946703B1 - Mischer mit verschlussdeckel - Google Patents

Mischer mit verschlussdeckel Download PDF

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Publication number
EP3946703B1
EP3946703B1 EP20717573.8A EP20717573A EP3946703B1 EP 3946703 B1 EP3946703 B1 EP 3946703B1 EP 20717573 A EP20717573 A EP 20717573A EP 3946703 B1 EP3946703 B1 EP 3946703B1
Authority
EP
European Patent Office
Prior art keywords
joint
closure cover
bar linkage
mixer according
shaft
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.)
Active
Application number
EP20717573.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3946703A1 (de
EP3946703C0 (de
Inventor
Andreas Seiler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maschinenfabrik Gustav Eirich GmbH and Co KG
Original Assignee
Maschinenfabrik Gustav Eirich GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maschinenfabrik Gustav Eirich GmbH and Co KG filed Critical Maschinenfabrik Gustav Eirich GmbH and Co KG
Publication of EP3946703A1 publication Critical patent/EP3946703A1/de
Application granted granted Critical
Publication of EP3946703B1 publication Critical patent/EP3946703B1/de
Publication of EP3946703C0 publication Critical patent/EP3946703C0/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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, the mixing container having an outlet opening in its base and a closure lid being provided which is between a closed position in which the closure lid closes the outlet opening and an open position in which the cover does not close the outlet opening and 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 inside the container. The mixing tool can be rotated about a mixer shaft arranged parallel to the axis of rotation of the container, with mixing blades, for example, being attached to the mixer shaft.
  • Such a mixing device is, for example, from WO 2011/128435 A1 or the EP 1103492A1 known.
  • a mixing device is shown, which is essentially the one from the WO 2011/128435 A1 known mixing device corresponds. This shows Figure 1 a mixing container in a top view, while Figure 2 represents a sectional view through the mixing device.
  • the cylindrical mixing container 101 has a cantilevered mixing tool 102 arranged eccentrically in the mixing container on a central shaft 103 with laterally arranged mixing blades 104 and a stationary wall/floor scraper 105 that is held vertically and cantilevered from above.
  • a cantilevered mixing tool 102 arranged eccentrically in the mixing container on a central shaft 103 with laterally arranged mixing blades 104 and a stationary wall/floor scraper 105 that is held vertically and cantilevered from above.
  • vertically downward-protruding soil knives 106 are attached, which work at a small distance from the surface of the container base.
  • the emptying opening 107 is located in the center of the mixing container 101.
  • the emptying opening 107 can be closed with the closure lid 108.
  • the closure cover 108 is connected to a support arm 110 via a bearing fork and the bearing pin 109 and can therefore be pivoted about the tilting axis of the bearing pin 109.
  • the support arm 110 is rotatably mounted via the pivot shaft 111.
  • a restoring element not shown, ensures that that the closure cover 108 assumes a certain position relative to the support arm 110 without external forces.
  • the closure lid 108 When the emptying opening 107 is closed, i.e. the closure lid 108 is positioned within the emptying opening 107, the closure lid 108 is 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 mix, since there is no dead space above the closure lid that cannot be reached by the soil knives 106.
  • closure lid to be flush with the container base make the design and guidance of the closure lid more difficult.
  • the cap would have to be moved linearly downwards to open the emptying opening.
  • this would mean that, due to the arrangement of the emptying opening in the bottom of the container, the mix would flow over all edge surfaces of the closure lid and possibly even contaminate the drive of the closure lid.
  • a pile of mix would remain on the flat closure lid and would not flow out with the rest of the mix.
  • pivoting the closure lid out of the emptying opening to the side is not possible due to the essentially cylindrical or truncated cone-shaped contact surfaces of the closure lid and the emptying opening.
  • the drive of the closure lid which is in Figure 2 is shown, a pivoting movement around both the axis 111 and the axis 109 in connection with the restoring element.
  • the well-known closure lid with a restoring element such as in the EP1103492A1 shown, is complex to produce and not easy to clean. Due to the rotational movement of the closure lid, the closure lid must have a certain amount of play within the emptying opening in order to be able to be pivoted out of the emptying opening. The resulting gap allows mix components to 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 repositioned in the opening and seals reliably. Furthermore, mixed material can accumulate in the area of the pivot axis 109 located below the closure lid and hinder the pivoting process.
  • this object is achieved in that the closure cover is connected to the machine stand via a four-bar linkage with four swivel joints, a first and a second swivel joint of the four-bar linkage being arranged on the machine stand and a third and a fourth swivel joint of the four-bar linkage on the closure cover, the mixing container is rotatable about a mixing container axis and that four-bar linkage is arranged such that it does not rotate together with the mixing container about the mixing container axis.
  • the third and fourth swivel joints can be arranged directly on the closure cover. Alternatively, another element could also be attached to the closure cover, on which the third and fourth swivel joints are arranged.
  • 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 joints 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 joints 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 joint axes of the third and fourth joints 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 joints are spaced apart from one another by a distance g.
  • closure cover is attached to the coupling element.
  • the coupling element can extend not only between the third and fourth joint, but also up to the closure cover.
  • the third joint can be arranged at 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 being provided for rotating the shaft and the lever element being attached to the shaft in such a way that the lever element rotates about 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 being provided for rotating the shaft and the crank element being attached to the shaft in such a way that the crank element rotates around the joint 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 faces into the interior of the mixing container in the closed position, an outer surface which opposes the inner surface, and a peripheral edge surface which connects the inner surface and the outer surface together.
  • Arranging 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 joints and the connection point at which the coupling element is connected to the closure lid can lie in a common plane that runs perpendicular to the outer surface and/or to the inner surface of the closure lid.
  • 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 lid out of the closure opening and which then transitions into a pivoting movement.
  • e is the distance between the first and second joint axes 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 lies than the second joint.
  • the fourth joint is closer to the closure lid than the third joint.
  • the crank element and the lever element run essentially parallel to one another. It is further preferred that in the closed position of the closure lid, the crank element and the lever element form an angle between 80° and 100° with the coupling element. Furthermore, it is 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 advantageously rod-shaped.
  • the coupling element is preferably also rod-shaped.
  • crank element the lengths of the 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 lid moves from the closed position to the open position, the projection of the edge of the closure lid, which is the The shaft is facing the bottom of the container and is not in the area of the outlet opening.
  • This configuration ensures that when the closure lid is opened, as little as possible of the mixture falling out of the closure opening falls onto the crank element, the lever element and the third and fourth joints and contaminates them to such an extent that the movement of the four-bar linkage is negatively influenced.
  • the cover protects the four-bar gearbox from mixed material falling out, which significantly increases the service life of the gearbox. In addition, the cleaning effort is lower because the joints are generally not contaminated by mix.
  • the closure lid is circular with a radius r, the coupling element preferably being connected to the closure lid in the center thereof.
  • the mixing container is rotatable about a mixing container axis and the four-bar linkage is arranged such that it does not rotate together with the mixing container about the mixing container axis.
  • a straight line runs through the third and fourth joint axes on the mixing container axis and through the center of the closure lid.
  • FIG. 1 and 2 a prior art mixer is shown, which has already been described above.
  • Figure 3 a perspective view from below of an embodiment of the mixer according to the invention is shown. You can see the bottom of the cylindrical mixing container 1, which is rotatably mounted on a machine stand 2. There is one at the bottom of the mixing container 1 Closure opening shown, in which a closure lid 3 is arranged. The closure cover 3 is attached to a coupling element 4, on which in turn the third joint axis 10 and the fourth joint axis 11 are arranged.
  • FIG 4 a perspective view of the mixer according to the invention is shown with a closure lid in the (partially) open position.
  • the closure lid 3 has an edge surface 13.
  • the coupling element 4 is connected to the closure cover 3, which is not exactly in the closed position in the position shown.
  • the closure lid is round and the coupling element is connected to the center 12 of the circular shape of the closure lid 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 both a crank element 7 and 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 via the swivel joint 8 by a corresponding drive, not shown, via a shaft, 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 .
  • Figure 5 is a side view of the mixer according to the invention Figure 4 shown in the (partially) open position of the closure lid.
  • FIG 6 a schematic representation of the mechanism is shown.
  • the four-bar linkage has a first and second swivel joint 8, 9, which are attached to the machine stand 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 swivel joint 9 is connected to the third swivel 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 also extends to the closure cover 3 and engages there at the center of the closure cover 12.
  • the coupling element is perpendicular to the closure cover.
  • the third swivel 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 joint 8, 9, should, if possible, not move further from the first swivel joint 8 in a direction parallel to the bottom surface of the mixing container during the movement from the closed position to the open position remove 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 mix.
  • 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, with 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 swivel joint, like the distance b, is 60 mm.
  • the closure lid 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)
EP20717573.8A 2019-04-04 2020-03-27 Mischer mit verschlussdeckel Active EP3946703B1 (de)

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 EP3946703A1 (de) 2022-02-09
EP3946703B1 true EP3946703B1 (de) 2023-12-06
EP3946703C0 EP3946703C0 (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 (zh)
EP (1) EP3946703B1 (zh)
JP (1) JP2022526391A (zh)
KR (1) KR20210148298A (zh)
CN (1) CN113646071B (zh)
AU (1) AU2020250833A1 (zh)
BR (1) BR112021016380A2 (zh)
CA (1) CA3130624A1 (zh)
DE (1) DE102019108869A1 (zh)
PL (1) PL3946703T3 (zh)
WO (1) WO2020201102A1 (zh)
ZA (1) ZA202106235B (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE243627C (zh) * 1911-05-28 1912-02-19
FR692088A (fr) * 1929-06-03 1930-10-30 Cie Generale De Construction Dispositif de vidange des trémies
FR2243132B1 (zh) * 1973-09-12 1979-02-16 Epluches Ateliers Construction
FR2273990A1 (fr) * 1974-06-07 1976-01-02 Gerdts Gustav F Kg Soupape a clapet
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

Also Published As

Publication number Publication date
JP2022526391A (ja) 2022-05-24
CA3130624A1 (en) 2020-10-08
KR20210148298A (ko) 2021-12-07
BR112021016380A2 (pt) 2021-10-19
CN113646071B (zh) 2023-07-18
EP3946703A1 (de) 2022-02-09
PL3946703T3 (pl) 2024-04-08
WO2020201102A1 (de) 2020-10-08
US20220161209A1 (en) 2022-05-26
ZA202106235B (en) 2023-06-28
AU2020250833A1 (en) 2021-09-16
DE102019108869A1 (de) 2020-10-08
CN113646071A (zh) 2021-11-12
EP3946703C0 (de) 2023-12-06

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