EP4021624A1 - Agitator - Google Patents
AgitatorInfo
- Publication number
- EP4021624A1 EP4021624A1 EP20820884.3A EP20820884A EP4021624A1 EP 4021624 A1 EP4021624 A1 EP 4021624A1 EP 20820884 A EP20820884 A EP 20820884A EP 4021624 A1 EP4021624 A1 EP 4021624A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base section
- agitator
- wearing part
- shaft
- wear part
- 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.)
- Pending
Links
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
- B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
- B01F27/052—Stirrers with replaceable wearing elements; Wearing elements therefor
-
- 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
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1145—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis
- B01F27/11451—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections ribbon shaped with an open space between the helical ribbon flight and the rotating axis forming open frameworks or cages
Definitions
- the invention relates to an agitator for mixing materials in the craft sector, such as glue, mortar, etc.
- Agitators for mixing materials are already known. They have a stirring element and a shaft protruding from the stirring element.
- the agitator can be coupled to a drive unit via the shaft, by means of which the agitator can be set in rotation.
- the stirrer is placed in a container in which the material to be mixed is contained.
- the agitator comes into contact at least temporarily with the bottom of the container in order to also subject the material on the bottom to the mixing process.
- the problem here is that the free end of the agitator element wears out relatively quickly due to contact with the bottom of the container, which significantly shortens the service life of the agitator.
- the invention relates to an agitator which is designed for mixing building materials such as tile adhesive or mortar.
- the agitator comprises an agitator and a shaft protruding from the agitator.
- the agitator element has at least one base section and at least one helical section which, starting from the base section, runs at least partially helically around the shaft.
- the helical section is preferably fixed on the shaft in the region of a free end.
- a wear part is releasably attached to the underside of the base section opposite the shaft and can be exchanged if necessary.
- the stirrer is designed as a stirrer basket.
- the stirring basket is characterized in that the spiral section - apart from its fastening points - is spaced apart from the shaft, so that an intermediate space is formed between the shaft and the spiral section through which the material to be mixed can be conveyed.
- the wear part is provided at the free end of the stirring basket so that during a stirring process it comes to rest against the bottom area of a container in which the stirring process takes place.
- the wearing part forms a free end of the agitator and thus comes into contact with the stirring vessel in which the mixing process frequently comes into contact, which leads to friction and thus wear and tear on the wearing part.
- the base section is designed to be ring-shaped and / or closed on the circumference.
- the wearing part is annular with at least one inner opening, so that the material to be mixed with Rotation can be promoted through the inner opening of the wear part through upwards.
- the technical advantage of the agitator is that due to the replaceable wear part, the service life of the agitator is not limited by the rapidly wearing lower area of the agitator element, which often comes into contact with the bottom of the container in which the agitation process takes place, but rather by After replacing the wear element, the agitator can continue to be used.
- the outer diameter of the wearing part can be selected to be larger than the outer diameter of the base section in order to also provide wear protection for the base section on the outer circumference.
- the wearing part can be connected to the base section by at least one connection point producing a form fit and / or force fit. This makes it possible to ensure that the wear part can be replaced while at the same time securing the wear part sufficiently well on the base section.
- the wearing part is detachably fastened to the base section by a plurality of screw connections arranged at an angle.
- the wearing part can be fixed to the base section firmly, but detachably if necessary.
- openings are provided on the base section.
- the openings are preferably bores which completely penetrate the base section, specifically in a direction parallel or essentially parallel to the shaft.
- On the wearing part there are several openings with internal threads, for example in the form of blind holes, provided.
- An opening of the base section and an opening of the wear part preferably correspond to one another in such a way that a screw can be screwed into an internal thread of the wear part through the opening of the base section. In this way, a technically simple and stable fastening of the wear part on the base section can be achieved.
- the screw heads of the screws protrude beyond the top of the base section. This has the advantage that the screw connection can be deactivated by grinding or cutting off the screw heads of the screws, which is advantageous because the screw connection often has material residues due to the use of the agitator in hardening materials, which does not make a conventional loosening of the screw connections possible.
- several threaded bolts protrude upward from the wearing part.
- Several openings are provided on the base section.
- the threaded bolts correspond to the openings of the base section in such a way that in each case a threaded bolt can be passed through an opening in the base section, so that the wearing part can be fixed to the base section by means of a nut attached to the threaded bolt.
- the wear part is made of metal, in particular a hard metal. This can significantly reduce the wear and tear on the wearing part.
- the wearing part can also be made of plastic, for example hard plastic, in particular a plastic with a Shore D hardness greater than 75.
- FIG. 1 shows an example of an agitator in a side, partially sectioned illustration
- FIG. 2 shows an example of a top view of the base section from above.
- FIG. 1 shows an agitator 1.
- the agitator 1 has an agitator 2, by means of which materials, in particular building materials such as tile adhesive, mortar or other mixtures consisting of solids and liquid components, can be mixed or stirred.
- the agitator 1 has a shaft 3 which is elongated and whose longitudinal axis forms the axis of rotation of the agitator 1.
- the stirring element 2 comprises a base section 2.1 and at least one, in the exemplary embodiment shown, a pair of helical sections 2.2, which protrude upwards from the base section 2.1 and run around the shaft 3 in a turned manner.
- the helical sections 2.2 are preferably connected to the base section 2.1 in the area of their first free ends and to the shaft 3 in the area of their second free ends.
- the base section 2.1 is, for example, designed to be closed in itself and runs in a plane perpendicular to the longitudinal axis of the shaft 3.
- the base section 2.1 can be designed, for example, ring-shaped, in particular circular ring-shaped.
- the shaft 3 is preferably provided centered with respect to the base section 2.1.
- connection of the shaft 3 to the base section 2.1 is preferably made via a cross strut 2.3, which runs perpendicularly or essentially perpendicularly to the shaft 3.
- the cross strut 2.3 is preferably connected on the free end side to opposite areas of the base section 2.1. This ensures that the rotational forces introduced via the shaft 3 are transmitted to the base section 2.1.
- a wear part 4 is provided on the base section 2.1.
- the wearing part 4 is arranged on the underside, ie on the side of the base section 2.1 opposite the shaft 3, so that it comes to rest against the bottom area of a container during a stirring process. This will First the wear part 4 is worn out by the friction and not the basic section 2.1 itself.
- the wearing part 4 can be releasably fixed to the base section 2.1 with different fastening measures and can thus be exchanged.
- the attachment can be established, for example, by screwing, hooking, clamping or other non-positive and / or positive connections.
- the wearing part 4 is fastened to the base section 2.1 by means of screw connections.
- the base section 2.1 has a plurality of openings through which a screw 6 can be passed in each case.
- a plurality of blind hole-like openings 4.2 are provided in the wearing part 4, one opening 4.2 of the wearing part 4 corresponding in each case to an opening in the base section 2.1.
- An internal thread is provided in each of the openings 4.2 of the wear part 4, so that a screw 6, which extends through the opening of the base section 2.1, can be screwed into this internal thread and thus the wear part 4 is fixed on the base section 2.1.
- the screw heads 6.1 of the screws 6 preferably protrude on the top side from the base section 2.1, with “top side” indicating the direction in which the free end of the shaft 3 is located.
- This has the advantage that in order to replace the wearing part 4, the screw heads 6.1 can be removed, for example by grinding, and then the wearing part 4 can be detached from the base section 2.1.
- These threaded bolts are provided on the wearing part 4 in such a way that when the wearing part 4 is attached to the base section 2.1, a threaded bolt is passed through an opening in the base section 2.1, in such a way that a section of the threaded bolt protrudes above the base section 2.1.
- a nut can be screwed on each of the protruding parts of the threaded bolt in order to fasten the wearing part 4 to the base section 2.1.
- the wearing part 4 is preferably, as shown in FIG. 2, ring-shaped, in particular circular ring-shaped, with an inner opening 4.1.
- the outer contour of the wearing part 4 is preferably adapted to the outer contour of the base section 2.1. This is to be understood in particular as the fact that the wear part 4 protrudes on the outer circumference with respect to the base section 2.1, so that there is also wear protection for the base section 2.1 on the outer circumference.
- the wearing part 4 is preferably formed from metal, in particular from a hard metal.
- other materials are also conceivable for the wear part 4, for example a wear part made of plastic, in particular made of a plastic with a Shore D hardness greater than 75 (hard plastic).
- the invention was described above using exemplary embodiments. It goes without saying that numerous changes and modifications are possible without thereby departing from the scope of protection defined by the patent claims.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019134449.2A DE102019134449A1 (en) | 2019-12-16 | 2019-12-16 | Agitator |
PCT/EP2020/084865 WO2021122099A1 (en) | 2019-12-16 | 2020-12-07 | Agitator |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4021624A1 true EP4021624A1 (en) | 2022-07-06 |
Family
ID=73748110
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20820884.3A Pending EP4021624A1 (en) | 2019-12-16 | 2020-12-07 | Agitator |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4021624A1 (en) |
DE (1) | DE102019134449A1 (en) |
WO (1) | WO2021122099A1 (en) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2552972A (en) * | 1948-05-19 | 1951-05-15 | Sunbeam Corp | Means for rotating mixer bowls |
JPH0794008B2 (en) * | 1990-11-21 | 1995-10-11 | 鹿島建設株式会社 | Kneading device and kneading method |
DE9202607U1 (en) * | 1992-02-28 | 1992-05-21 | Collomix - Ruehr- Und Mischgeraete Gmbh, 8074 Gaimersheim, De | |
US20060268659A1 (en) * | 2005-05-27 | 2006-11-30 | Randy Kaas | Beater apparatus and method |
CN101951780A (en) * | 2007-12-21 | 2011-01-19 | 阳光有限责任公司 | A beater |
DE202011003695U1 (en) * | 2011-03-09 | 2012-03-01 | Mayer Verwaltungs Gmbh & Co. Kg | Mixing screw for feed mixer |
ES2674934T3 (en) * | 2012-07-31 | 2018-07-05 | Germans Boada S.A. | Portable mixer with adjustable height handle |
DE202013000516U1 (en) * | 2013-01-21 | 2013-02-28 | Roland Okrey | Hand-operated tools for the treatment of objects or materials, in particular in the construction industry |
ITUB20160050A1 (en) * | 2016-01-21 | 2017-07-21 | Ali Group Srl Carpigiani | AGITATOR OF A MACHINE FOR THE PRODUCTION AND DISTRIBUTION OF ICE-CREAM PRODUCTS. |
CN206463815U (en) * | 2016-12-30 | 2017-09-05 | 武汉理工大学 | Silt emulation experiment agitator arm |
-
2019
- 2019-12-16 DE DE102019134449.2A patent/DE102019134449A1/en active Pending
-
2020
- 2020-12-07 EP EP20820884.3A patent/EP4021624A1/en active Pending
- 2020-12-07 WO PCT/EP2020/084865 patent/WO2021122099A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
DE102019134449A1 (en) | 2021-06-17 |
WO2021122099A1 (en) | 2021-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2159000B1 (en) | Adapter for securing a tool to an oscillation drive | |
DE3000697C2 (en) | ||
DE2456668A1 (en) | FASTENING DEVICE | |
EP1302286A1 (en) | Machine tool with securing flange | |
DE3108487A1 (en) | "TENSION INDICATOR DISC" | |
EP1649819A1 (en) | Bone plate | |
DE1500896B1 (en) | Repeatedly detachable screw connection | |
DE2143379A1 (en) | Torque transmitting flexible coupling | |
EP2364770B1 (en) | Tool for mixing device | |
DE2638740C3 (en) | Hinge for scissors | |
EP4021624A1 (en) | Agitator | |
DE10119913A1 (en) | Screw nut for limiting an acting torque and the corresponding procedure | |
DE2443013A1 (en) | FASTENING ELEMENT | |
DE102006046066A1 (en) | Torque adapter for socket wrench has roller pins that engage inclined grooves formed in conical frustum shaped concave section | |
DE202005003149U1 (en) | Washer, in particular to be used for joining painted metal parts, comprising raised upper and lower inner edges | |
DE102005050836A1 (en) | Polishing or grinding head for power tool has plastic base with through bore having thread reinforced by metal helical insert | |
DE102013106404A1 (en) | Fastening part for fastening components in automobile industry, has projections arranged to rotate to adapt to form seat to rotate fastening part in direction of tightening by contacting of profile surface of fastening tool | |
DE1951235C3 (en) | Lifting elements in protective lining with sight for rotary drums, such as mills | |
DE102012101866B3 (en) | Non-twisting feed mixer blade | |
EP3884744B1 (en) | Roller tip | |
DE7439878U (en) | FASTENING DEVICE | |
DE102021125785B3 (en) | Threaded bolt and hinge assembly with such a threaded bolt | |
DE102011100246A1 (en) | Safety screw for screw joint in thermally or chemically loaded region, has deformations distributed over circumference of screw and formed at tooth flank of thread pitch in screw-in direction | |
DE102004057884B4 (en) | Schraubbefestigungsanordnung | |
DE2916190A1 (en) | RUBBER FENDER O.A. ELASTIC MATERIAL |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20220331 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
|
17Q | First examination report despatched |
Effective date: 20230504 |