EP1850970B1 - Device and method for mixing a binding component and a curing component to produce a ready-made filler - Google Patents
Device and method for mixing a binding component and a curing component to produce a ready-made filler Download PDFInfo
- Publication number
- EP1850970B1 EP1850970B1 EP06707251A EP06707251A EP1850970B1 EP 1850970 B1 EP1850970 B1 EP 1850970B1 EP 06707251 A EP06707251 A EP 06707251A EP 06707251 A EP06707251 A EP 06707251A EP 1850970 B1 EP1850970 B1 EP 1850970B1
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- EP
- European Patent Office
- Prior art keywords
- component
- mixing
- mixing chamber
- curing component
- binding component
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00503—Details of the outlet element
- B05C17/00516—Shape or geometry of the outlet orifice or the outlet element
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- 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
- B01F27/27—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices
- B01F27/272—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces
- B01F27/2721—Mixers with stator-rotor systems, e.g. with intermeshing teeth or cylinders or having orifices with means for moving the materials to be mixed axially between the surfaces of the rotor and the stator, e.g. the stator rotor system formed by conical or cylindrical surfaces provided with intermeshing elements
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- 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
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
- B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
- B01F35/8822—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances using measuring chambers of the piston or plunger type
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/00553—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with means allowing the stock of material to consist of at least two different components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2305—Mixers of the two-component package type, i.e. where at least two components are separately stored, and are mixed in the moment of application
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C17/00—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces
- B05C17/005—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes
- B05C17/01—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like
- B05C17/0103—Hand tools or apparatus using hand held tools, for applying liquids or other fluent materials to, for spreading applied liquids or other fluent materials on, or for partially removing applied liquids or other fluent materials from, surfaces for discharging material from a reservoir or container located in or on the hand tool through an outlet orifice by pressure without using surface contacting members like pads or brushes with manually mechanically or electrically actuated piston or the like with electrically actuated piston or the like
Definitions
- the invention relates to a device and a method for mixing a binder component and a hardener component to a ready-to-use filler according to the preamble of claim 1.
- Such a device for producing a ready-to-use filler for the filling of surfaces of vehicle bodies is out DE 203 07 518 U1 known.
- the apparatus has two reservoirs arranged at a base station, one of which is filled with a binder component, namely a putty component, and another with a hardener component.
- a binder component namely a putty component
- a hardener component With the aid of a metering device, the two components are each fed via a feed channel continuously to a mixing chamber in which the components come into contact with each other.
- the mixing chamber is formed in a hose section of a flexible hose, on the outside of which press rollers engage, which compress the hose section and at the same time drive it around its longitudinal axis.
- the components Due to the friction occurring and the adhesion of the components to the inner wall of the tube, the components are mixed together. After the mixture has passed through the tube section, it arrives at an outlet opening provided on the tube, where it emerges continuously from the tube.
- the hose wall is made of an airtight plastic, so that the air surrounding the hose during the mixing process does not get into the mix and in this in the form of pores or Cavities can be included. In practice, however, it has been shown that the filler compound mixed with the device occasionally still has inhomogeneities. When the putty is filled on the surface of a vehicle body, the putty does not harden at the places where no hardening component is present.
- a device for mixing two components is known. This is used in the dental field and serves to supply antibiotics or dental filling material.
- the device comprises two cylindrical containers for receiving the components, each having a piston or punch.
- the pistons allow the components to be pushed out of an opening, as with a hypodermic syringe.
- the components mix in a mixing chamber.
- Both pistons are connected by a connecting element, so that by pressing a single piston both components can be pushed out simultaneously.
- the invention in a generic device is that the device for the hardener component at least one reservoir, which is connected via at least one preferably via at least one or two separate feed channels to the mixing chamber, wherein the supply of the binder component and the Hardener component by means of control means to the mixing chamber is carried out such that the hardener component is supplied with a small flow relative to the binder component of the mixing chamber.
- the inventive method is that the binder component and the curing agent component is supplied with the interposition of a metering device or a metering device excluding a mixing chamber, which is supplied to the hardener component with respect to the binder component with a flow.
- the device may also work with at least one reservoir for the hardener component. If only one storage container for the hardener component is used, then the hardener component can be supplied to the mixing chamber via a supply channel. However, it is also possible to supply the hardener component via at least two supply channels of the mixing chamber. If more than one reservoir for the hardener component used, then each reservoir is connected via a supply channel with the mixing chamber.
- a particular advantage is further that the hardener component is supplied with a flow relative to the binder component of the mixing chamber. It has been shown that with simultaneous supply of the binder component and the hardener component, the binder component passes into the mixing chamber before the hardener component is in the mixing chamber. This uneven component feed to the mixing chamber is based on the fact that, compared to the amount of hardener component used, a larger amount of binder component is needed for the preparation of the filler compound, and therefore, when the device is put into operation, the first part of the binder component reaching the mixing chamber does not yet have any Hardener component finds, so that the mixing chamber leaving putty, ie the mix has parts to which no hardener component is added.
- the hardener component is supplied with a low flow of the mixing chamber.
- This flow of the hardener component with respect to the binder component can also be achieved with additional means, namely by a pre-injection of the hardener component to binder component by means of a hydraulic, compressed air or electric motor operated piston, which before feeding the binder Component in the mixing chamber of the supplied hardener component pre-presses a part in the mixing chamber, so that the supplied binder component already meets existing in the mixing chamber hardener component.
- the hardener component would enter the mixing chamber simultaneously with the binder component, excellent mixing results would be obtained.
- the hardener component in the amount is only involved with 2% of the total mass, it can not be avoided that the hardener component only at a later date, for. B. one second later, enters the mixing chamber as the binder component with a share of 98% of the total mass. In this one second, however, a proportion of about 10 grams of binder component has already reached the mixing chamber, which does not yet contain a hardener component. This proportion of binder component now pushes through the mixing chamber and exits from the outlet opening and can not harden due to lack of hardener component.
- an embodiment of the invention provides that with the aid of a small piston driven by compressed air, a small amount, for. B. of about 0.2 grams of hardener component is injected into the mixing chamber before the large amount of 98% of the binder component enters the mixing chamber. In this way, it is ensured that all the binder component fed to the mixing chamber is mixed with the hardener component and thus also contains the resulting filler compound hardener component, at least in an amount of 1%, which is required for a useful hardening.
- This pre-injection or supply of a small amount of hardener component is particularly advantageous. Even if the hardener component is colored, the amount of dye due to the only 2% addition of hardener component is so low that a ready-mixed filler can not be considered whether it contains hardener component or not. By means of the pre-injection, it is ensured that curable putties are obtained in all parts.
- a thixotropic binder component is arranged in the reservoir for the binder component, the device having a device upstream of the mixing chamber for increasing the fluidity of the binder component.
- the thixotropy of the binder component is then temporarily reversibly destroyed, thereby better dispersing the hardener component in the binder component, particularly if there is once an air bubble in one of the harder component supply channels should be arranged and thereby the Mixing chamber only a correspondingly reduced amount of hardener component can be supplied.
- the distance between the hardener component and the binder component in the mix must be significantly less than 0.5 millimeters, so that a uniform hardening of the mix is achieved and no areas remain in the mix in which no curing takes place.
- the device for increasing the flowability is reduced, especially at low temperatures, which are often below 12 ° C in a repair shop in winter, the required for the supply of the binder component to the mixing chamber delivery pressure.
- the metering device is designed such that with bubble-free mixing of the components, the mixing ratio V B : V S from the mixing chamber supplied volume flow V B of the hardener component and the sum V S from the volume flow V B and the Mixing chamber supplied volume flow V A of the binder component in the range of 1% and 4%, in particular between 1.5% and 3% and preferably about 2%.
- the device is thus designed so that the mixing ratio in polyester putty and bubble-free mixing of the components a short pot life and a low Consumption of the hardener component results.
- the mixing ratio is reduced compared to the mixing ratio with bubble-free mixing, which correspondingly prolongs the time required for the mixture to harden. Nevertheless, the mix hardens completely in this case.
- the device for increasing the flowability has at least one element arranged in the feed channel for the binder component, which element can be driven in such a way that kinetic energy is introduced into the binder component.
- kinetic energy is the Thixotropy of the binder component reversibly attenuated or even completely eliminated.
- the storage containers are arranged at a base station, if the mixing chamber is formed in a detachably connectable to the base station mixing head, and if the feed channels guided in such a way and the mixing head is configured such that after the completion of the mixing process and the separation of Mixing head of the base station all Mischgutreste remain in the mixing head.
- the mixing head is formed as a disposable part, which is separated after completion of the mixing process of the base station and disposed of together with the remaining mixed material residue. Since the components only come into contact with each other in the mixing head, no hardened mixed-product residues remain at the base station.
- the base station can therefore be equipped after completion of a mixing process in a simple way with a new mixing head and is then immediately ready for another mixing process.
- the cross-section of a supply channel connecting the reservoir for the binder component to the mixing head may be minimized, at least at the interface between the base station and the mixing head, such that the Binder component during removal of the mixing head of the base station at the transition point breaks without dripping.
- the feed channel for the binder component has an inner and outer boundary wall spaced apart by an annular gap and movable relative to one another in the circumferential direction of the annular gap, at least one of said boundary walls having a projection as a momentum introducing element.
- the device thereby enables a simple and inexpensive construction.
- the boundary wall having the projection is preferably movable and drivable relative to the reservoir for the binder component.
- At least the outer boundary wall consists of a transparent material, and if the hardener component is preferably different in color from the binder component.
- the mixing process can then be optically controlled by the outer boundary wall on the basis of the color of the mix.
- the elements for introducing kinetic energy can be arranged in a plurality of floors spaced apart from one another in the direction of the axis of rotation of the rotary movement by intermediate spaces. It is even possible that the extension planes of at least two floors are tilted with elements for introducing kinetic energy relative to each other. This allows even better pre-fluidization of the binder component.
- the metering device is designed such that in bladder-free hardener component of the mixing chamber supplied amount of hardener component is approximately equal to the individual reservoirs for the hardener component is removed.
- the storage container for the binder component is preferably arranged approximately centrally between the storage containers for the hardener component.
- the base station can then have a symmetrical structure.
- the storage containers are each designed as cartridges with a sliding in a hollow cylindrical housing section sliding bottom, wherein at the base station for each cartridge each having a receptacle with an abutment point for the hollow cylindrical housing portion is provided, and wherein in each case relative to the abutment point a plunger is adjustably mounted, with which the sliding floor of the cartridge in question can be pressurized for pressing out the component located therein.
- the base station can be easily refilled by replacing the cartridges.
- the plungers are preferably connected to one another at their end regions remote from the sliding surfaces by a bridge, and when the bridge is movable relative to the abutment points by means of an actuator.
- the components can thereby be supplied to the mixing head in a simple manner in a volume flow ratio predetermined by the ratio of the base areas of the sliding bases of the cartridges. Thus, a correct dosage of the components is always guaranteed.
- the actuator may have a drive shaft which is connected for displacing the bridge via a threaded spindle arranged on a spindle nut with the bridge. It is with the help of the threaded spindle, the rotational movement of the drive shaft in one for the Adjusting the cartridge sliding shelves required displacement movement implemented.
- the actuator has an electric motor, wherein a battery is preferably provided for the power supply of the electric motor.
- the device can then be driven by a motor without an external power supply.
- the electric drive formed from the electric motor and the battery can be a commercial drive for a cordless drill.
- the actuator on a pneumatic or hydraulic cylinder and / or a pneumatic or hydraulic motor.
- the device is then suitable for use in potentially explosive areas.
- the drive shaft can also be in drive connection with a handwheel.
- the metering device can then be driven manually without external power supply.
- the drive shaft is in drive connection with at least one mixing element arranged in the mixing chamber.
- a drive device connected to the drive shaft can then drive both the metering device and the mixing element.
- the device allows a simple and inexpensive construction.
- the mixing chamber is formed like an annular gap between an inner and an outer chamber wall, wherein the chamber walls about a rotation axis relative are rotatably mounted to each other, wherein the mixing elements are arranged on the mutually facing sides of the chamber walls teeth, adjacent to the tooth spaces in the circumferential direction of the mixing chamber, and wherein the teeth in the rotational movement in the direction of the axis of rotation relative to each other pass each other, that the components through Division are mixed together.
- the cooperating teeth of the outer and inner chamber walls allow intensive mixing of the components.
- the chamber walls of the mixing chamber are preferably designed so rigid that they essentially retain their shape during the Scherkraftbeetzung of the components to be mixed or the mixed material.
- the inner chamber wall and the outer chamber wall are mounted rotatably relative to each other with axial play, that the teeth of the inner chamber wall are offset relative to the teeth of the outer chamber wall in the axial direction, facing each other, in the axial direction facing end surfaces of at least one tooth of the inner chamber wall and at least one tooth of the outer chamber wall by a between the inner chamber wall and the outer Chamber wall in the axial direction acting force can be positioned against each other, and that these end faces are inclined with respect to a plane normal to the axis of rotation at an angle such that the end faces during the mixing process slide on each other, without that the material is removed from the teeth into the mix.
- the device thereby enables low consumption of the components.
- the teeth of the inner chamber wall and the teeth of the outer chamber wall are pressed against each other by the delivery pressure of the components, wherein the obliquely extending face side surfaces slide on each other without abrading material from the teeth and gets into the mix.
- the components and / or the mix between the successive sliding end faces form a thin film which acts as a sliding layer.
- the angle at which the teeth are inclined relative to the plane arranged normal to the axis of rotation may be at least 5 °, optionally at least 10 ° and preferably at least 15 °. It should also be mentioned that a mixing head with such bevelled teeth can also be provided in a device which has only a single storage container for each component. Such a device is in German patent application 10 2004 044 625.3 described.
- the device may have a second electric motor which is in drive connection with the at least one mixing element, the electric motors preferably being connected to a control device which is designed such that the first electric motor is switched on or delayed after switching on the second electric motor is switched on. It is even possible that the device has a contactor, via which the second electric motor is automatically switched on when positioning the mixing head to the base station.
- a further embodiment of an embodiment for the centering of the storage container provides that each storage container for the binder component and the hardener component for centering the outlet opening formed in the container bottom for the container contents to the inlet openings of the feed channels with its bottom peripheral peripheral bead in one with this corresponding and formed in the support plate-like abutment point annular groove is engageable, wherein the peripheral edge bead of the reservoir are formed with the annular groove in the abutment point to each other such that the reservoir rests flat on the abutment point.
- a designated as a whole with 1 device for mixing a binder component A and a hardener component B to a ready-made filler for the filling of surfaces of vehicle bodies, has a base station 2, at the one with the binder component A, such as. B. polyester filler, filled first reservoir 3a and two with the hardener component B, such as. B. a peroxide filled second reservoir 3b are arranged. It can clearly be seen that the two storage containers 3b for the hardener component B each have a significantly smaller cross-section than the storage container 3a for the binder component.
- the sum of the cross-sectional areas of the two storage containers 3b for the hardener component B is preferably about 2% of the sum of the total cross-sectional area of the three storage containers 3a, 3b.
- the two reservoirs 3b for the hardener component are identical.
- the storage containers 3a, 3b are each configured as cartridges with a sliding in a hollow cylindrical housing section 4a, 4b sliding floor 5a, 5b.
- the sliding shelves 5a, 5b lie with their outer edge in each case tight against the inner wall of their associated housing section 4a, 4b of the respective cartridge.
- a metering device is arranged, which has for each cartridge in each case a receptacle with an abutment point 6a, 6b for the hollow cylindrical housing portion 4a, 4b of the cartridge. At this abutment point 6a, 6b of the housing portion 4a, 4b is in each case when the cartridge is inserted into the receptacle.
- the metering device in each case has a plunger 7a, 7b which, in the position of use, engages the rear side of the sliding floor 5a, 5b facing away from the cartridge A, B, and with the aid of a sliding guide 8a, 8b (FIG. Fig. 1 and Fig. 2 ) on the abutment site 6a, 6b and is moved away from this.
- a sliding guide 8a, 8b FIG. Fig. 1 and Fig. 2
- the plungers 7a, 7b are arranged with their longitudinal axes approximately parallel to one another and that the pressure stamp 7a provided for pressing out the binder component A is arranged between the two plungers 7b for the hardener component B.
- the plungers 7a, 7b are fixedly connected to each other by a bridge 9 which extends transversely to the plungers 7a, 7b.
- the bridge 9 is rotatably connected to a spindle nut 10 which is bolted to a threaded spindle 11.
- the threaded spindle 11 is for pressurizing the sliding plates 5a, 5b with the shaft of a first electric motor 12 in drive connection, which is arranged on the base station 2 on the cartridge side facing away from the bridge 9 approximately in a straight extension of the plunger 7a for the binder component A.
- a transmission gear can be arranged between the shaft and the threaded spindle 11, a transmission gear can be arranged.
- the plunger 7a is formed for the binder component A as a sleeve, and that the threaded spindle 11 engages in the inner cavity of the sleeve.
- the plunger 7a has a plate-shaped widening, which is adapted in shape to the sliding floor 5a.
- the plungers 7a, 7b are controlled by means of hydraulic or electromotive drives 50, which are combined in a control device 55 ( Fig. 2A ).
- the device 1 preferably has a reservoir 3a for the binder component A and at least one reservoir 3b for the hardener component B. With only one storage container 3b for the hardener component B, this is connected via a feed channel 13b with the mixing chamber 14 in connection. It is also possible to connect a single reservoir 3b via two separate feed channels with the mixing chamber 14. If two storage containers 3b are used for the hardener component B, the connection to the mixing chamber 14 takes place via two separate feed channels.
- the device 1 for the hardener component B at least two reservoir 3b, which are connected via separate feed channels 13b with the mixing chamber 14.
- the drives 50 for the plunger 7a, 7b for the sliding floors 5a, 5b of the reservoir 3a, 3b for the binder component A and Hardener component B controlled by means of the control device 55 such that prior to the entry of the binder component A in the mixing chamber 14, the hardener component B is already introduced into the mixing chamber 14, so that the total introduced into the mixing chamber 14 amount of binder Component A is mixed with hardener component B ( Fig. 2A ).
- the cartridges each have a removal opening for the components A, B stored in the cartridge.
- Each of the removal openings is in each case connected via a separate supply channel 12a, 12b to a common mixing chamber 14 which is detachable in one the base station 2 connectable mixing head 15 is arranged.
- a seal such. B. may be arranged an O-ring.
- the mixing head has a stator part 16 which has a first inlet opening 17a for the binder component A and two second inlet openings 17b for the hardener component B.
- the first inlet opening 17a is assigned to the base station 2, a first outlet opening 18a, which is connected via a first feed channel 12a to the first reservoir 3a.
- the second inlet openings 17b are each assigned a second outlet opening 18b at the base station, which is connected in each case via a second feed channel 12b to a second storage container 3b assigned to the relevant inlet opening 17b.
- the first outlet opening 18a of the first inlet opening 17a and the second outlet openings 18a each face a second inlet opening 17b, so that the components located in the individual cartridges can reach the mixing head 15 via separate paths ,
- hardener component B continue to be passed into the mixing chamber 14 via the other feed channel 12b.
- the mixing head 15 is connected to the base station 2 by attaching the inlet openings 17a, 17b to the outlet openings 18a, 18b.
- the inlet openings 17a, 17b and the outlet openings 18a, 18b are designed as mating plug-in coupling parts, which are connected tightly in the connecting position.
- a rotor part 19 is arranged rotatable about its longitudinal axis 20.
- a means for increasing the flowability of the thixotropic binder component A which has on the rotor member 19 a plurality of approximately radially to the longitudinal axis 20 in different directions protruding projections 22 which, together with the rotor member 19 about the longitudinal axis Turn 20 when the rotor member 19 is rotationally driven relative to the stator 16.
- kinetic energy is introduced into the binder component A to reversibly destroy their Thixtorpie.
- the binder component A can mix more uniformly with the hardener component B on entering the mixing chamber 14.
- Fig. 4 It can be seen that the components A, B are guided in the mixing head 15 in such a way that they only come into contact with each other inside the mixing head. This leaves after the completion of the mixing process and the separation of the mixing head 15 of the base station 2 all Mischgutreste in the mixing head 15. This is designed as a disposable part, which is disposed of after use and replaced by a corresponding new part.
- the mixing chamber 14 is formed between the stator 16 and the rotor part 19, the mixing chamber 14 is formed.
- the mixing chamber 14 is formed in the shape of an annular gap between an inner chamber wall arranged on the rotor part 19 and an outer chamber wall provided on the stator part 16. With the aid of the metering device, the mixture can be continuously conveyed through the mixing chamber 14 to a dispensing opening 21 arranged on the stator part 16, which is arranged downstream of the inlet openings 17a, 17b in the flow direction.
- the mutually facing chamber walls of the mixing chamber 14 have teeth 23, 24 as mixing elements.
- the inner chamber wall arranged on the rotor part 19 and the outer, provided on the stator 16 wall chamber 8 each have a plurality of spaced apart in the direction of the longitudinal axis 20 floors with teeth 23, 24.
- the teeth 23, 24 of the individual floors are each spaced apart in the circumferential direction of the mixing chamber 14 by tooth gaps.
- the chamber walls each have gaps through which the teeth 23, 24 of the respective other chamber wall which are opposite the respective gap pass through during the rotational movement.
- the rotor part 19 and the stator part 16 are rotatably supported by means of a sliding bearing 27 relative to each other.
- the sliding bearing 27 has on the stator 16 an outer bearing ring 28 and on the rotor part 19 an inner bearing ring 29 which are supported against each other in the radial and axial directions.
- the sliding bearing 27 has in the direction of the longitudinal axis 20 axial play, whereby the teeth 24 of the rotor member 19 with their counter to the in Fig. 8 indicated by the arrow P2 main direction of flow of the components A, B or the mixture facing end faces 30 something to this facing each, facing in the main direction of flow Pf2 end faces 31 of the teeth 23 of the stator 16 are moved when the mixing head 15 with the delivery pressure of the components A. , B is acted upon.
- Fig. 8 It can be seen that the end faces 28, 29 are inclined at an angle ⁇ with respect to a plane normal to the longitudinal axis 20 in such a way that they overlap one another during the mixing process can slide.
- a thin layer of the mixture is arranged, which serves as a sliding film.
- the mutually facing ends of the end faces 28, 29 of the rotor teeth 24 and the stator teeth 23 are thereby somewhat spaced apart in the longitudinal direction of the mixing head 15.
- the corresponding distance is denoted by x. Due to the inclination of the end faces 28, 29 is avoided during the mixing process that is removed from the teeth 23, 24 material and device in the mix C.
- the base station 2 is attached to a building wall 26.
- a second electric motor 25 is provided, which is in driving connection with the rotor part 19 of the mixing head.
- the second electric motor 25 has a positive fit on the rotor member 19 driver.
- the mixing head 15 is first attached to the driver and then the mixing head 15 with the inlet openings 17a, 17b attached to the outlet openings 18a, 18b of the base station 2.
- a switching device not shown in the drawing is actuated, which connects the electric motors 12, 25 with a power supply, thereby starting the mixing process.
- the device 1 for mixing a binder component A and the curing agent component B to a pasty or liquid mix, in particular for producing a ready-to-use filler for the filling of surfaces of vehicle bodies thus has for separate storage of the components A, B reservoir 3a, 3b, which are filled with the components A and B respectively.
- the storage containers 3a, 3b are connected to at least one mixing chamber 14 via separate feed channels 13a, 13b.
- the mixing chamber 14 has at least one discharge opening 21 for the mix.
- the hardener component B is arranged in at least two storage containers 3b, which are connected to the mixing chamber via separate feed channels 13b.
- Fig. 11 has each storage container 3a, 3b for the binder component A and the hardener component B for centering the container bottom 60 formed in the outlet opening 61 for the container contents to the inlet openings of the feed channels 13a, 13b, in or on its bottom plate 60 'ring or Partial annular, outwardly directed beads 65 which engage in corresponding groove-shaped recesses 75 in the support plate-like abutment point 6a, 6b for the reservoir 3a, 3b, wherein the beads 65 and the corresponding with them groove-shaped recesses 75 are formed to each other such that each the storage container 3a, 3b with its container bottom 60 rests flat on the abutment point 6a, 6b.
- outlet opening 61 in the bottom plate 60 'of the reservoir 3a or 3b is formed as an outward bend, then the inlet opening of each feed channel 13a and 13b corresponding recesses, so that the planar support of the reservoir 30a, 30b on the abutment Stelte 6a, 6b is secured.
- Fig. 12 shows a further embodiment in which each storage container 3a, 3b for the binder component A and the hardener component B for centering the container bottom 60 formed in the container opening 61 for the container contents to the inlet openings of the feed channels 13a, 13b with its bottom peripheral peripheral bead 80th or its circulating Outer edge in a corresponding with this and in the support plate-like abutment point 6a, 6b formed annular groove 95 is engageable, wherein the peripheral edge bead 80 of the reservoir 3a, 3b and the annular groove 95 in the abutment point 6a, 6b are formed to each other such that the reservoir 3a, 3b with its bottom plate 60 'rests flat on the abutment point.
- the above-described device 1 for mixing the binder component A with a hardener component B is according to Fig. 13 and 14 with a device 90 for pre-injection of a small amount of hardener component A.
- a small amount of hardener component B is fed to one of the two supply channels 13a or 13b for the hardener component B to the mixing chamber 14 or directly to the mixing chamber 14 by means of the device 90 ,
- This device 90 consists of a cylindrical housing 91, in whose interior 91a a rod-shaped piston 92 of the means of a compressed air drive in the direction of arrow X is movable ( Fig. 15 . 16 . 17 and 18 ).
- the arrangement of the device 90 is such that the piston 92 can be retracted into the feed channel 13b.
- the device 90 can also be assigned to the feed channel 13a.
- the hardener component B is fed to the mixing chamber 14 via the two feed channels 13a, 13b.
- Fig. 16 shows the initial position of the piston 92, which is retracted. In this retracted position of the piston 92, hardener component B is pressed into the feed channel 13b via the channel 13'b when the device is started up ( Fig. 17 ). Even before binder component A is supplied to the mixing chamber 14, the piston 92 is moved forward. In this forward movement, the piston 92 is moved into the feed channel 13b; at the same time it presses the hardener component located in the feed channel 13b A 'in the direction X1 in the mixing chamber 14 ( Fig. 17 ) and simultaneously closes the channel 13'b ( Fig.
- the length of the advancing movement of the piston 92 respectively determines the amount of hardener component B that is in the mixing chamber 14 before the device for supplying the binder component A is put into operation. Binder component A fed to the mixing chamber 14 then encounters hardener component B already present in the mixing chamber. If a small amount of hardener component B is introduced into the mixing chamber by means of the piston 92 of the device 90, the piston 92 is made of the in Fig. 18 shown position in the in Fig. 17 shown withdrawn position.
- the supply of the binder component A and the supply of the curing agent component B from the two storage containers that receive the hardener component B takes place. Since harder component B is still present in the feed channel 13b of each preceding mixing process, hardener component B is always available for supplying a small amount of hardener component B in the feed channel 13b in order to produce a small amount of hardener component B of the Feed mixing chamber 14 before binder component A of the mixing chamber 14 is supplied.
- the device 90 it is possible, before the large amount of binder component A is supplied to the mixing chamber 14, that already a predetermined amount of hardener component B is in the mixing chamber 14, so that already from the beginning mixing with the Hardener component B can take place.
- an amount of about 0.2 grams of hardener component B is injected into the mixing chamber.
- a planar Receiving element 32 for the mix C arranged, for example, a spatula.
- the receiving element 32 is by means of a pivot bearing 33 about an approximately horizontal, laterally spaced from the discharge opening 21 pivot axis against the restoring force of a spring 34 from a rest position into a working position of the discharge opening 21 away pivoting down. It can be clearly seen that when loading the receiving element 32 with the mix C, the distance between the discharge opening 21 and the receiving element 32 increases due to the weight of the mixing material C located on the receiving element 32. As a result, overflows in the mixture C are avoided on the receiving element 32.
- stator part 16 and the rotor part 19 are mounted so as to be rotatable relative to one another about a rotation axis by means of a combined rotary and support bearing.
- the rotary and support bearing has a arranged on the base station 2 turntable 35 on which the rotor member 19 comes with its one end face to the plant. At its other end, the rotor part 19 is connected to a shaft which is in drive connection with the second electric motor 25.
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Description
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Vermischen einer Binder-Komponente und einer Härter-Komponente zu einer gebrauchsfertigen Spachtelmasse gemäß dem Oberbegriff des Anspruches 1.The invention relates to a device and a method for mixing a binder component and a hardener component to a ready-to-use filler according to the preamble of
Eine derartige Vorrichtung zur Herstellung einer gebrauchsfertigen Spachtelmasse für die Verspachtelung von Oberflächen von Fahrzeugkarosserien ist aus
Aus der
Es besteht die Aufgabe, eine Vorrichtung der eingangs genannten Art zu schaffen, die es ermöglicht, alle Komponenten so miteinander zu vermischen, dass das Mischgut zuverlässig und vollständig aushärtet und eine Spachtelmasse ohne Lufteinschlüsse erhalten wird.It is the object to provide a device of the type mentioned above, which makes it possible to mix all components together so that the mix cures reliably and completely and a filler is obtained without air pockets.
Gelöst wird diese Aufgabe mit einer Vorrichtung mit den im Anspruch 1 angegebenen Merkmalen und mit einem Verfahren mit den in Anspruch 30 angegebenen Verfahrensschritten.This object is achieved with a device having the features specified in
Hiernach besteht die Erfindung bei einer gattungsgemäßen Vorrichtung darin, dass die Vorrichtung für die Härter-Komponente mindestens einen Vorratsbehälter, der über mindestens einen bevorzugterweise über mindestens einen oder zwei getrennte Zuführkanäle mit der Mischkammer verbunden ist, wobei die Zuführung der Binder-Komponente und der Härter-Komponente vermittels Steuereinrichtungen zur Mischkammer derart erfolgt, dass die Härter-Komponente mit einem geringen Vorlauf gegenüber der Binder-Komponente der Mischkammer zugeführt wird.Thereafter, the invention in a generic device is that the device for the hardener component at least one reservoir, which is connected via at least one preferably via at least one or two separate feed channels to the mixing chamber, wherein the supply of the binder component and the Hardener component by means of control means to the mixing chamber is carried out such that the hardener component is supplied with a small flow relative to the binder component of the mixing chamber.
Das erfindungsgemäße Verfahren besteht darin, dass die Binder-Komponente und die Härter-Komponente unter Zwischenschaltung einer Dosiervorrichtung oder unter Ausschluss einer Dosiervorrichtung einer Mischkammer zugeführt wird, der die Härter-Komponente gegenüber der Binder-Komponente mit einem Vorlauf zugeführt wird.The inventive method is that the binder component and the curing agent component is supplied with the interposition of a metering device or a metering device excluding a mixing chamber, which is supplied to the hardener component with respect to the binder component with a flow.
Die Erfindung beruht auf der Erkenntnis, dass Inhomogenitäten in dem Mischgut in der Regel durch Lufteinschlüsse in der Härter-Komponente verursacht werden, die sich auch bei sorgfältiger Fertigung der Härter-Komponente in der Praxis nicht sicher vermeiden lassen. Da die Härter-Komponente einen Anteil von weniger als 5 % und bevorzugt von nur etwa 2 % am Gesamtvolumen des Mischgutes aufweist, können bereits kleinste Lufteinschlüsse in der Härter-Komponente zur Folge haben, dass in dem Mischgut Stellen vorhanden sind, die keine Härter-Komponente enthalten und somit nicht aushärten. Da bei der erfindungsgemäßen Vorrichtung bevorzugterweise zwei Vorratsbehälter für die Härter-Komponente vorgesehen und über getrennte Zuführkanäle mit der Mischkammer verbunden sind, kann für den Fall, dass in einem der Zuführkanäle einmal eine Luftblase enthalten sein sollte, der Mischkammer normalerweise über den mindestens einen anderen Zuführkanal weiterhin Härter-Komponente zugeführt werden. Die Gefahr, dass in sämtlichen Zuführkanälen gleichzeitig Luftblasen in der Härter-Komponente enthalten sein sollten, ist sehr gering und kann vernachlässigt werden. Die Vorrichtung kann insbesondere für die nachstehend aufgeführten Bindemittelsysteme verwendet werden:
- Polyesterharze (ungesättigt),
- Peroxyd-Styrol-Systeme,
- Epoxid-Harze (zweikomponentig),
- Polyurethan-Harzsysteme (zweikomponentig)
- Phenolharz-Systeme,
- Silicon-Systeme (zweikomponentig)
- Acrylat-Systeme (zweikomponentig)
- Thiocoll-Systeme (Polidisulfid-Systeme).
- Polyester resins (unsaturated),
- Peroxide-styrene systems,
- Epoxy resins (two-component),
- Polyurethane resin systems (two-component)
- Phenolic resin systems,
- Silicone systems (two-component)
- Acrylate systems (two-component)
- Thiocoll systems (polydisulfide systems).
Die Vorrichtung kann auch mit mindestens einem Vorratsbehälter für die Härter-Komponente arbeiten. Wird nur ein Vorratsbehälter für die Härter-Komponente eingesetzt, dann kann die Härter-Komponente über einen Zuführungskanal der Mischkammer zugeführt werden. Es besteht jedoch auch die Möglichkeit, die Härter-Komponente über mindestens zwei Zuführungskanäle der Mischkammer zuzuführen. Werden mehr als ein Vorratsbehälter für die Härter-Komponente eingesetzt, dann ist jeder Vorratsbehälter über einen Zuführungskanal mit der Mischkammer verbunden.The device may also work with at least one reservoir for the hardener component. If only one storage container for the hardener component is used, then the hardener component can be supplied to the mixing chamber via a supply channel. However, it is also possible to supply the hardener component via at least two supply channels of the mixing chamber. If more than one reservoir for the hardener component used, then each reservoir is connected via a supply channel with the mixing chamber.
Ein besonderer Vorteil besteht ferner darin, dass die Härter-Komponente mit einem Vorlauf gegenüber der Binder-Komponente der Mischkammer zugeführt wird. Es hat sich nämlich gezeigt, dass bei gleichzeitiger Zuführung der Binder-Komponente und der Härter-Komponente die Binder-Komponente in die Mischkammer gelangt, bevor die Härter-Komponente sich in der Mischkammer befindet. Diese ungleichmäßige Komponentenzuführung zur Mischkammer beruht darauf, dass gegenüber der eingesetzten Menge an Härter-Komponente eine größere Menge an Binder-Komponente für die Herstellung der Spachtelmasse benötigt wird und daher bei Inbetriebnahme der Vorrichtung der erste in die Mischkammer gelangende Teil der Binder-Komponente noch keine Härter-Komponente vorfindet, so dass die die Mischkammer verlassende Spachtelmasse, d. h. das Mischgut, Teile aufweist, denen keine Härter-Komponente zugemischt ist. Dieser Nachteil wird dadurch vermieden, dass vermittels einer entsprechenden Steuerung der hydraulisch oder elektromotorisch betriebenen Schiebeböden zum Herausdrücken der Komponenten aus ihren Vorratsbehältern, die Härter-Komponente mit einem geringen Vorlauf der Mischkammer zugeführt wird. Dieser Vorlauf der Härter-Komponente gegenüber der Binder-Komponente kann auch mit zusätzlichen Einrichtungen erreicht werden, nämlich durch eine Vor-Injektion der Härter-Komponente zur Binder-Komponente vermittels eines hydraulisch, druckluft oder elektromotorisch betriebenen Kolbens, der vor der Zuführung der Binder-Komponente in die Mischkammer von der zugeführten Härter-Komponente einen Teil vorweg in die Mischkammer drückt, so dass die zugeführte Binder-Komponente bereits auf in der Mischkammer vorhandene Härter-Komponente trifft.A particular advantage is further that the hardener component is supplied with a flow relative to the binder component of the mixing chamber. It has been shown that with simultaneous supply of the binder component and the hardener component, the binder component passes into the mixing chamber before the hardener component is in the mixing chamber. This uneven component feed to the mixing chamber is based on the fact that, compared to the amount of hardener component used, a larger amount of binder component is needed for the preparation of the filler compound, and therefore, when the device is put into operation, the first part of the binder component reaching the mixing chamber does not yet have any Hardener component finds, so that the mixing chamber leaving putty, ie the mix has parts to which no hardener component is added. This disadvantage is avoided in that by means of an appropriate control of the hydraulic or electric motor operated sliding floors for pushing out the components from their storage containers, the hardener component is supplied with a low flow of the mixing chamber. This flow of the hardener component with respect to the binder component can also be achieved with additional means, namely by a pre-injection of the hardener component to binder component by means of a hydraulic, compressed air or electric motor operated piston, which before feeding the binder Component in the mixing chamber of the supplied hardener component pre-presses a part in the mixing chamber, so that the supplied binder component already meets existing in the mixing chamber hardener component.
Mit dem erfindungsgemäßen Vorlauf der Härter-Komponente zur Binder-Komponente wird folgender Vorteil erreicht: Wenn die Härter-Komponente gleichzeitig mit der Binder-Komponente in die Mischkammer eintreten würde, würden ausgezeichnete Mischergebnisse erhalten werden. Da aber die Härter-Komponente in der Menge nur mit 2 % an der Gesamtmasse beteiligt ist, lässt es sich nicht vermeiden, dass die Härter-Komponente erst zu einem späteren Zeitpunkt, z. B. eine Sekunde später, in die Mischkammer gelangt wie die Binder-Komponente mit einem Anteil von 98 % der Gesamtmasse. In dieser einen Sekunde ist aber bereits ein Anteil von etwa 10 Gramm an Binder-Komponente in die Mischkammer gelangt, in der sich noch keine Härter-Komponente befindet. Dieser Anteil an Binder-Komponente schiebt sich nun durch die Mischkammer und tritt aus deren Austrittsöffnung aus und kann wegen fehlender Härter-Komponente nicht aushärten. Wenn von dieser Masse etwas auf die Karosserie eines Fahrzeuges aufgetragen wird, dann bemerkt dies der Lackierer erst, wenn die aufgetragene Masse geschliffen wird. Die Lösung dieses Problems erfolgt erfindungsgemäß in der Weise, dass bevor die große Menge an Binder-Komponente in die Mischkammer eintritt, sich bereits eine Menge an Härter-Komponente in der Mischkammer befindet, so dass von Anfang an eine Vermischung mit der Härter-Komponente stattfindet. Hierzu sieht eine Ausführungsform der Erfindung vor, dass mit Hilfe eines mittels Druckluft angetriebenen kleinen Kolbens eine kleine Menge, z. B. von etwa 0,2 Gramm, an Härter-Komponente in die Mischkammer eingespritzt wird, bevor die große Menge von 98 % der Binder-Komponente in die Mischkammer gelangt. Auf diese Weise ist sichergestellt, dass alle der Mischkammer zugeführte Binder-Komponente mit der Härter-Komponente vermischt und somit auch die erhaltene Spachtelmasse Härter-Komponente enthält, zumindest in einer Menge von 1 %, die für eine brauchbare Durchhärtung erforderlich ist.With the inventive flow of the hardener component to the binder component, the following advantage is achieved: If the hardener component would enter the mixing chamber simultaneously with the binder component, excellent mixing results would be obtained. However, since the hardener component in the amount is only involved with 2% of the total mass, it can not be avoided that the hardener component only at a later date, for. B. one second later, enters the mixing chamber as the binder component with a share of 98% of the total mass. In this one second, however, a proportion of about 10 grams of binder component has already reached the mixing chamber, which does not yet contain a hardener component. This proportion of binder component now pushes through the mixing chamber and exits from the outlet opening and can not harden due to lack of hardener component. When something is applied to the body of a vehicle from this mass, the painter will not notice it until the applied mass is ground. The solution to this problem is inventively in such a way that before the large amount of binder component enters the mixing chamber, there is already a lot of hardener component in the mixing chamber, so that from the beginning mixing with the hardener component takes place. For this purpose, an embodiment of the invention provides that with the aid of a small piston driven by compressed air, a small amount, for. B. of about 0.2 grams of hardener component is injected into the mixing chamber before the large amount of 98% of the binder component enters the mixing chamber. In this way, it is ensured that all the binder component fed to the mixing chamber is mixed with the hardener component and thus also contains the resulting filler compound hardener component, at least in an amount of 1%, which is required for a useful hardening.
Diese Vorab-Einspritzung bzw. Zuführung einer kleinen Menge an Härter-Komponente ist besonders vorteilhaft. Auch wenn die Härter-Komponente eingefärbt ist, ist die Farbstoffmenge aufgrund der nur 2 %igen Zugabe an Härter-Komponente so gering, dass einer fertig vermischten Spachtelmasse nicht angesehen werden kann, ob sie Härter-Komponente enthält oder nicht. Vermittels der Vorab-Einspritzung ist gewährleistet, dass in allen Teilen aushärtbare Spachtelmassen erhalten werden.This pre-injection or supply of a small amount of hardener component is particularly advantageous. Even if the hardener component is colored, the amount of dye due to the only 2% addition of hardener component is so low that a ready-mixed filler can not be considered whether it contains hardener component or not. By means of the pre-injection, it is ensured that curable putties are obtained in all parts.
Erfindungsgemäß ist in dem Vorratsbehälter für die Binder-Komponente eine thixotrope Binder-Komponente angeordnet, wobei die Vorrichtung eine der Mischkammer vorgeschaltete Einrichtung zur Erhöhung der Fließfähigkeit der Binder-Komponente aufweist. Bei der Zuführung der Binder-Komponente zu der Mischkammer wird dann die Thixotropie der Binder-Komponente vorübergehend reversibel zerstört, wodurch sich die Härter-Komponente besser in der Binder-Komponente verteilt, insbesondere wenn in einem der Zuführkanäle für die Härter-Komponente einmal eine Luftblase angeordnet sein sollte und dadurch der Mischkammer nur noch eine entsprechend reduzierte Menge Härter-Komponente zugeführt werden kann. Bei einer Polyester-Spachtelmasse muss der Abstand zwischen der Härter-Komponente und der Binder-Komponente in dem Mischgut deutlich geringer als 0,5 Millimeter sein, damit eine gleichmäßige Härtung des Mischguts erreicht wird und keine Bereiche in dem Mischgut verbleiben, in denen keine Härtung stattfindet. Durch die Einrichtung zur Erhöhung der Fließfähigkeit reduziert sich insbesondere bei niedrigen Temperaturen, die in einer Reparaturwerkstatt im Winter oftmals unter 12° C liegen, der für die Zuführung der Binder-Komponente zu der Mischkammer benötigte Förderdruck.According to the invention, a thixotropic binder component is arranged in the reservoir for the binder component, the device having a device upstream of the mixing chamber for increasing the fluidity of the binder component. Upon delivery of the binder component to the mixing chamber, the thixotropy of the binder component is then temporarily reversibly destroyed, thereby better dispersing the hardener component in the binder component, particularly if there is once an air bubble in one of the harder component supply channels should be arranged and thereby the Mixing chamber only a correspondingly reduced amount of hardener component can be supplied. In a polyester putty, the distance between the hardener component and the binder component in the mix must be significantly less than 0.5 millimeters, so that a uniform hardening of the mix is achieved and no areas remain in the mix in which no curing takes place. The device for increasing the flowability is reduced, especially at low temperatures, which are often below 12 ° C in a repair shop in winter, the required for the supply of the binder component to the mixing chamber delivery pressure.
Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.
Bei einer bevorzugten Ausführungsform der Erfindung ist die Dosiereinrichtung derart ausgestaltet, dass bei blasenfreier Vermischung der Komponenten das Mischungsverhältnis VB:VS aus dem der Mischkammer zugeführten Volumenstrom VB der Härter-Komponente und der Summe VS aus dem Volumenstrom VB und dem der Mischkammer zugeführten Volumenstrom VA der Binder-Komponente im Bereich der 1 % und 4 %, insbesondere zwischen 1,5 % und 3 % und bevorzugt etwa 2 % beträgt. Die Vorrichtung ist also so ausgelegt, dass das Mischungsverhältnis bei Polyesterspachtelmasse und blasenfreier Vermischung der Komponenten eine geringe Topfzeit und einen geringen Verbrauch der Härter-Komponente ergibt. Sollte einmal in einem der Zuführkanäle für die Härter-Komponente eine Luftblase enthalten sein, ist das Mischungsverhältnis gegenüber dem Mischungsverhältnis bei blasenfreier Vermischung reduziert, wodurch sich die Zeit, die das Mischgut zum Aushärten benötigt, entsprechend verlängert. Dennoch härtet das Mischgut auch in diesem Fall vollständig aus.In a preferred embodiment of the invention, the metering device is designed such that with bubble-free mixing of the components, the mixing ratio V B : V S from the mixing chamber supplied volume flow V B of the hardener component and the sum V S from the volume flow V B and the Mixing chamber supplied volume flow V A of the binder component in the range of 1% and 4%, in particular between 1.5% and 3% and preferably about 2%. The device is thus designed so that the mixing ratio in polyester putty and bubble-free mixing of the components a short pot life and a low Consumption of the hardener component results. Should an air bubble be contained in one of the supply channels for the hardener component, the mixing ratio is reduced compared to the mixing ratio with bubble-free mixing, which correspondingly prolongs the time required for the mixture to harden. Nevertheless, the mix hardens completely in this case.
Bei einer zweckmäßigen Ausgestaltung der Erfindung weist die Einrichtung zur Erhöhung der Fliessfähigkeit mindestens ein in dem Zuführkanal für die Binder-Komponente angeordnetes Element auf, das derart antreibbar ist, dass in die Binder-Komponente Bewegungsenergie eingebracht wird. Durch das Einbringen der Bewegungsenergie wird die Thixotropie der Binder-Komponente reversibel abgeschwächt oder sogar völlig beseitigt.In an expedient embodiment of the invention, the device for increasing the flowability has at least one element arranged in the feed channel for the binder component, which element can be driven in such a way that kinetic energy is introduced into the binder component. By introducing the kinetic energy is the Thixotropy of the binder component reversibly attenuated or even completely eliminated.
Besonders vorteilhaft ist, wenn die Vorratsbehälter an einer Basisstation angeordnet sind, wenn die Mischkammer in einem lösbar mit der Basisstation verbindbaren Mischkopf gebildet ist, und wenn die Zuführkanäle derart geführt und der Mischkopf derart ausgestaltet ist, dass nach dem Beenden des Mischvorganges und dem Trennen des Mischkopfes von der Basisstation alle Mischgutreste im Mischkopf verbleiben. Der Mischkopf ist als dabei Einwegteil ausgebildet, das nach Beendigung des Mischvorgangs von der Basisstation getrennt und zusammen mit dem darin verbleibenden Mischgutrest entsorgt wird. Da die Komponenten nur in dem Mischkopf miteinander in Kontakt geraten, verbleiben an der Basisstation keine gehärteten Mischgutreste. Die Basisstation kann deshalb nach Beendigung eines Mischvorganges auf einfache Weise mit einem neuen Mischkopf bestückt werden und ist dann für einen weiteren Mischvorgang sofort einsatzbereit. Wenn die Vorrichtung an der Basisstation eine Einrichtung zur der Fließfähigkeit der Binder-Komponente aufweist, kann der Querschnitt eines den Vorratsbehälter für die Binder-Komponente mit dem Mischkopf verbindenden Zuführkanals zumindest an der Übergangsstelle zwischen der Basisstation und dem Mischkopf gering gewählt sein, so dass die Binder-Komponente beim Abziehen des Mischkopfes von der Basisstation an der Übergangsstelle abreißt ohne nachzutropfen. Durch das die Bewegungsenergie in die Binder-Komponente einbringende Element wird außerdem beim Abziehen des Mischkopfes der Abreißpunkt der Binder-Komponente zu dem die Bewegungsenergie einbringenden Element hin verlagert, damit der sich beim Abziehen des Mischkopfes an der Basisstation bildende Wurstzipfel entsprechend kurz gehalten und das Einsetzen des neuen Mischkopfes erleichtert wird.It is particularly advantageous if the storage containers are arranged at a base station, if the mixing chamber is formed in a detachably connectable to the base station mixing head, and if the feed channels guided in such a way and the mixing head is configured such that after the completion of the mixing process and the separation of Mixing head of the base station all Mischgutreste remain in the mixing head. The mixing head is formed as a disposable part, which is separated after completion of the mixing process of the base station and disposed of together with the remaining mixed material residue. Since the components only come into contact with each other in the mixing head, no hardened mixed-product residues remain at the base station. The base station can therefore be equipped after completion of a mixing process in a simple way with a new mixing head and is then immediately ready for another mixing process. When the device at the base station has means for flowability of the binder component, the cross-section of a supply channel connecting the reservoir for the binder component to the mixing head may be minimized, at least at the interface between the base station and the mixing head, such that the Binder component during removal of the mixing head of the base station at the transition point breaks without dripping. By the kinetic energy in the binder component introducing element is also displaced when pulling off the mixing head of the tear point of the binder component to the kinetic energy introducing element, so that the pulling off the mixing head at the base station forming sausage lobes kept short and inserting the new mixing head is facilitated.
Zweckmäßigerweise hat der Zuführkanal für die Binder-Komponente eine innere und äußere Begrenzungswand, die durch einen Ringspalt voneinander beabstandet und in Umfangsrichtung des Ringspalts relativ zueinander bewegbar sind, wobei mindestens eine dieser Begrenzungswände als Element zur Einbringung von Bewegungsenergie einen Vorsprung aufweist. Die Vorrichtung ermöglicht dadurch einen einfachen und kostengünstigen Aufbau. Die den Vorsprung aufweisende Begrenzungswand ist vorzugsweise relativ zu dem Vorratsbehälter für die Binder-Komponente bewegbar und antreibbar.Conveniently, the feed channel for the binder component has an inner and outer boundary wall spaced apart by an annular gap and movable relative to one another in the circumferential direction of the annular gap, at least one of said boundary walls having a projection as a momentum introducing element. The device thereby enables a simple and inexpensive construction. The boundary wall having the projection is preferably movable and drivable relative to the reservoir for the binder component.
Vorteilhaft ist, wenn zumindest die äußere Begrenzungswand aus einem durchsichtigen Werkstoff besteht, und wenn sich die Härter-Komponente vorzugsweise farblich von der Binder-Komponente unterscheidet. Der Mischvorgang kann dann durch die äußere Begrenzungswand hindurch anhand der Farbe des Mischgutes optisch kontrolliert werden.It is advantageous if at least the outer boundary wall consists of a transparent material, and if the hardener component is preferably different in color from the binder component. The mixing process can then be optically controlled by the outer boundary wall on the basis of the color of the mix.
Die Elemente zur Einbringung von Bewegungsenergie können in mehreren, in Richtung der Rotationsachse der Drehbewegung durch Zwischenräume voneinander beabstandeten Etagen angeordnet sein. Dabei ist es sogar möglich, dass die Erstreckungsebenen von mindestens zwei Etagen mit Elementen zur Einbringung von Bewegungsenergie relativ zueinander verkippt sind. Dadurch wird eine noch bessere Vorfluidisierung der Binder-Komponente ermöglicht.The elements for introducing kinetic energy can be arranged in a plurality of floors spaced apart from one another in the direction of the axis of rotation of the rotary movement by intermediate spaces. It is even possible that the extension planes of at least two floors are tilted with elements for introducing kinetic energy relative to each other. This allows even better pre-fluidization of the binder component.
Bei einer bevorzugten Ausgestaltung der Erfindung ist die Dosiereinrichtung derart ausgestaltet, dass bei blasenfreier Härterkomponente die der Mischkammer zugeführte Menge Härterkomponente etwa zu gleichen Teilen den einzelnen Vorratsbehältern für die Härter-Komponente entnommen wird. Dadurch gelangt beim Auftreten einer Luftblase in einem der Zuführkanäle unabhängig davon, in welchem Zuführkanal sich die Luftblase befindet, stets etwa die gleiche Menge Härter-Komponente in die Mischkammer.In a preferred embodiment of the invention, the metering device is designed such that in bladder-free hardener component of the mixing chamber supplied amount of hardener component is approximately equal to the individual reservoirs for the hardener component is removed. As a result, when an air bubble occurs in one of the feed channels, regardless of which feed channel the air bubble is in, the same amount of hardener component always reaches the mixing chamber.
Zweckmäßigerweise ist der Vorratsbehälter für die Binder-Komponente vorzugsweise etwa mittig zwischen den Vorratsbehältern für die Härter-Komponente angeordnet. Die Basisstation kann dann einen symmetrischen Aufbau aufweisen.Advantageously, the storage container for the binder component is preferably arranged approximately centrally between the storage containers for the hardener component. The base station can then have a symmetrical structure.
Vorzugsweise sind die Vorratsbehälter jeweils als Kartuschen mit einem in einem hohlzylindrischen Gehäuseabschnitt verschiebbaren Schiebeboden ausgebildet, wobei an der Basisstation für jede Kartusche jeweils eine Aufnahme mit einer Widerlagerstelle für den hohlzylindrischen Gehäuseabschnitt vorgesehen ist, und wobei jeweils relativ zu der Widerlagerstelle ein Druckstempel verstellbar gelagert ist, mit welchem der Schiebeboden der betreffenden Kartusche zum Auspressen der darin befindlichen Komponente druckbeaufschlagbar ist. Wenn die in den Vorratsbehältern befindlichen Komponenten aufgebraucht sind, kann die Basisstation auf einfache Weise durch Auswechseln der Kartuschen neu befüllt werden.Preferably, the storage containers are each designed as cartridges with a sliding in a hollow cylindrical housing section sliding bottom, wherein at the base station for each cartridge each having a receptacle with an abutment point for the hollow cylindrical housing portion is provided, and wherein in each case relative to the abutment point a plunger is adjustably mounted, with which the sliding floor of the cartridge in question can be pressurized for pressing out the component located therein. When the components in the reservoirs are exhausted, the base station can be easily refilled by replacing the cartridges.
Vorteilhaft ist, wenn die Druckstempel vorzugsweise an ihren von den Schiebeböden entfernten Endbereichen durch eine Brücke miteinander verbunden sind, und wenn die Brücke mit Hilfe eines Stellantriebes relativ zu den Widerlagerstellen bewegbar ist. Die Komponenten können dadurch auf einfache Weise in einem durch das Verhältnis der Grundflächen der Schiebeböden der Kartuschen vorgegebenen Volumenstromverhältnis dem Mischkopf zugeführt werden. Somit ist stets eine korrekte Dosierung der Komponenten gewährleistet.It is advantageous if the plungers are preferably connected to one another at their end regions remote from the sliding surfaces by a bridge, and when the bridge is movable relative to the abutment points by means of an actuator. The components can thereby be supplied to the mixing head in a simple manner in a volume flow ratio predetermined by the ratio of the base areas of the sliding bases of the cartridges. Thus, a correct dosage of the components is always guaranteed.
Der Stellantrieb kann eine Antriebswelle aufweisen, die zum Verschieben der Brücke über eine auf einer Gewindespindel angeordnete Spindelmutter mit der Brücke verbunden ist. Dabei wird mit Hilfe der Gewindespindel die Drehbewegung der Antriebswelle in eine für das Verstellen der Kartuschen-Schiebeböden benötigte Verschiebebewegung umgesetzt.The actuator may have a drive shaft which is connected for displacing the bridge via a threaded spindle arranged on a spindle nut with the bridge. It is with the help of the threaded spindle, the rotational movement of the drive shaft in one for the Adjusting the cartridge sliding shelves required displacement movement implemented.
Bei einer vorteilhaften Ausgestaltung der Erfindung weist der Stellantrieb einen Elektromotor auf, wobei zur Stromversorgung des Elektromotors vorzugsweise ein Akku vorgesehen ist. Die Vorrichtung kann dann ohne eine externe Energieversorgung motorisch angetrieben werden. Der aus dem Elektromotor und dem Akku gebildete elektrische Antrieb kann ein handelsüblicher Antrieb für eine Akku-Bohrmaschine sein.In an advantageous embodiment of the invention, the actuator has an electric motor, wherein a battery is preferably provided for the power supply of the electric motor. The device can then be driven by a motor without an external power supply. The electric drive formed from the electric motor and the battery can be a commercial drive for a cordless drill.
Bei einer anderen vorteilhaften Ausführungsform der Erfindung weist der Stellantrieb einen pneumatischen oder hydraulischen Arbeitszylinder und/oder einen Pneumatik- oder Hydraulikmotor auf. Die Vorrichtung ist dann für eine Verwendung in explosionsgefährdeten Räumen geeignet.In another advantageous embodiment of the invention, the actuator on a pneumatic or hydraulic cylinder and / or a pneumatic or hydraulic motor. The device is then suitable for use in potentially explosive areas.
Die Antriebswelle kann auch mit einem Handrad in Antriebsverbindung stehen. Die Dosiereinrichtung kann dann ohne externe Energieversorgung manuell angetrieben werden.The drive shaft can also be in drive connection with a handwheel. The metering device can then be driven manually without external power supply.
Vorteilhaft ist, wenn die Antriebswelle mit mindestens einem in der Mischkammer angeordneten Mischelement in Antriebsverbindung steht. Eine mit der Antriebswelle verbundene Antriebseinrichtung kann dann sowohl die Dosiereinrichtung als auch das Mischelement antreiben. Dabei ist die Geschwindigkeit, mit der die Schiebeböden bewegt werden, proportional zur Drehzahl des Mischelements, so dass weitgehend unabhängig von der Drehzahl der Antriebswelle stets eine gute Durchmischung der Komponenten erreicht wird. Außerdem ermöglicht die Vorrichtung einen einfachen und kostengünstigen Aufbau.It is advantageous if the drive shaft is in drive connection with at least one mixing element arranged in the mixing chamber. A drive device connected to the drive shaft can then drive both the metering device and the mixing element. The speed at which the sliding surfaces are moved, proportional to the speed of the mixing element, so that a good mixing of the components is always achieved largely independent of the speed of the drive shaft. In addition, the device allows a simple and inexpensive construction.
Bei einer bevorzugten Ausgestaltung der Erfindung ist die Mischkammer ringspaltartig zwischen einer inneren und einer äußeren Kammerwand gebildet, wobei die Kammerwände um eine Rotationsachse relativ zueinander verdrehbar gelagert sind, wobei die Mischelemente an den einander zugewandten Seiten der Kammerwände angeordnete Zähne sind, an die in Umfangsrichtung der Mischkammer Zahnlücken angrenzen, und wobei die Zähne bei der Rotationsbewegung derart in Richtung der Rotationsachse relativ zueinander versetzt aneinander vorbeilaufen, dass die Komponenten durch Teilung miteinander vermischt werden. Die miteinander zusammenwirkenden Zähne der äußeren und inneren Kammerwände ermöglichen eine intensive Vermischung der Komponenten. Dabei werden durch die Zähne Scherkräfte in die Komponenten bzw. das Mischgut eingebracht, die bewirken, dass die in den Zahnlücken befindlichen Teilbereiche der Komponenten bzw. des Mischgutes von in Richtung der Rotationsachse dazu benachbarten Teilbereichen abgetrennt und in Richtung der Drehbewegung versetzt oder verschoben werden. Gleichzeitig wird neuer Komponentenwerkstoff über die Zuführkanäle kontinuierlich der Mischkammer zugeführt, wodurch in dieser eine Strömung entsteht, die von den Zuführkanälen zu der Austrittsöffnung verläuft. Auf diese Weise kommt zuständig neuer Komponenten- und/oder Mischgutwerkstoff in den Wirkungsbereich der Zähne. Im Unterschied zu einem Schlauchmischer sind die Kammerwände der Mischkammer vorzugsweise derart biegesteif ausgebildet, dass sie während der Scherkraftbeaufschlagung der zu vermischenden Komponenten bzw. des Mischguts im Wesentlichen ihre Form beibehalten.In a preferred embodiment of the invention, the mixing chamber is formed like an annular gap between an inner and an outer chamber wall, wherein the chamber walls about a rotation axis relative are rotatably mounted to each other, wherein the mixing elements are arranged on the mutually facing sides of the chamber walls teeth, adjacent to the tooth spaces in the circumferential direction of the mixing chamber, and wherein the teeth in the rotational movement in the direction of the axis of rotation relative to each other pass each other, that the components through Division are mixed together. The cooperating teeth of the outer and inner chamber walls allow intensive mixing of the components. In this case, shear forces are introduced into the components or the mix by the teeth, which cause the located in the tooth gaps portions of the components or the mixed material separated from in the direction of the axis of rotation adjacent portions and offset or moved in the direction of rotation. At the same time new component material is supplied via the feed channels continuously to the mixing chamber, whereby in this a flow is formed which extends from the feed channels to the outlet opening. In this way comes responsible new component and / or mixed material in the sphere of action of the teeth. In contrast to a hose mixer, the chamber walls of the mixing chamber are preferably designed so rigid that they essentially retain their shape during the Scherkraftbeaufschlagung of the components to be mixed or the mixed material.
Bei einer bevorzugten Ausführungsform der Erfindung ist vorgesehen, dass die innere Kammerwand und die äußere Kammerwand mit Axialspiel relativ zueinander verdrehbar gelagert sind, dass die Zähne der inneren Kammerwand derart relativ zu den Zähne der äußeren Kammerwand in Axialrichtung versetzt sind, dass einander zugewandte, in Axialrichtung weisende Stirnseitenflächen mindestens eines Zahns der inneren Kammerwand und zumindest eines Zahns der äußeren Kammerwand durch eine zwischen der inneren Kammerwand und der äußeren Kammerwand in Axialrichtung wirkende Kraft gegeneinander positionierbar sind, und dass diese Stirnseitenflächen derart in Bezug zu einer normal zur Rotationsachse angeordneten Ebene unter einem Winkel geneigt sind, dass die Stirnseitenflächen während des Mischvorganges aufeinander gleiten, ohne dass von den Zähnen Material in das Mischgut abgetragen wird. Dadurch ist es möglich, die Länge des Mischkopfs in Richtung der Rotationsachse kurz zu halten, so dass nach Gebrauch des Mischkopfes nur eine entsprechend kleine Restmenge des Gemischs in dem Mischkopf verbleibt. Die Vorrichtung ermöglicht dadurch einen geringen Verbrauch der Komponenten. Während des Mischvorganges werden die Zähne der inneren Kammerwand und die Zähne der äußeren Kammerwand durch den Förderdruck der Komponenten gegeneinander gedrückt, wobei die schräg zueinander verlaufenden Stirnseitenflächen aufeinander gleiten, ohne dass von den Zähnen Werkstoff abbrasiv abgetragen wird und in das Mischgut gelangt. Dabei bilden die Komponenten und/oder das Mischgut zwischen den aufeinander gleitenden Stirnseitenflächen einen dünnen Film, der als Gleitschicht wirkt. Der Winkel, unter dem die Zähne gegenüber der normal zur Rotationsachse angeordneten Ebene geneigt sind, kann mindestens 5°, gegebenenfalls mindestens 10° und bevorzugt mindestens 15° betragen. Erwähnt werden soll noch, dass ein Mischkopf mit derart abgeschrägten Zähnen auch bei einer Vorrichtung vorgesehen sein kann, die für jede Komponente jeweils nur einen einzigen Vorratsbehälter hat. Eine solche Vorrichtung ist in deutschen Patentanmeldung
Zusätzlich zu dem ersten Elektromotor kann die Vorrichtung einen zweiten, mit dem mindestens einen Mischelement in Antriebsverbindung stehenden Elektromotor aufweisen, wobei die Elektromotoren vorzugsweise mit einer Steuereinrichtung verbunden sind, die derart ausgebildet ist, dass der erste Elektromotor beim Einschalten oder zeitverzögert nach dem Einschalten des zweiten Elektromotors zugeschaltet wird. Dabei ist es sogar möglich, dass die Vorrichtung einen Kontaktgeber aufweist, über den beim Positionieren des Mischkopfs an der Basisstation der zweite Elektromotor automatisch eingeschaltet wird.In addition to the first electric motor, the device may have a second electric motor which is in drive connection with the at least one mixing element, the electric motors preferably being connected to a control device which is designed such that the first electric motor is switched on or delayed after switching on the second electric motor is switched on. It is even possible that the device has a contactor, via which the second electric motor is automatically switched on when positioning the mixing head to the base station.
Zur Zentrierung der im Behälterboden eines jeden Vorratsbehälters für die Binder-Komponente und für die Härter-Komponente ausgebildeten Austriffsöffnungen für die Zuführung des Behälterinhaltes zu den Eintrittsöffnungen der Zuführkanäle ist in der Behälterbodenplatte eine ring- oder teilringförmige, nach außen gerichtete Wulst ausgebildet, die in korrespondierende nutenförmige Vertiefungen in der trägerplattenartig ausgebildeten Widerlagerstelte für die Vorratsbehälter eingreifen, wobei die Wülste und die mit ihnen korrespondierenden nutenförmigen Vertiefungen derart zueinander ausgebildet sind, dass jeder Vorratsbehälter plan auf der Widerlagerstelle aufliegt.For centering the in the container bottom of each reservoir for the binder component and the hardener component formed Austriffsöffnungen for the supply of the container contents to the inlet openings of the feed channels in the container bottom plate a ring-shaped or partially annular, outwardly directed bead formed in the corresponding groove-shaped depressions in the carrier plate-like abutment temples engage the reservoir, wherein the beads and the corresponding with them groove-shaped recesses are formed to each other such that each reservoir rests flat on the abutment.
Eine weitere Ausführungsform einer Ausgestaltung für die Zentrierung der Vorratsbehälter sieht vor, dass jeder Vorratsbehälter für die Binder-Komponente und die Härter-Komponente zur Zentrierung der im Behälterboden ausgebildeten Austrittsöffnung für den Behälterinhalt zu den Eintrittsöffnungen der Zuführkanäle mit seiner bodenseitigen umlaufenden Randwulst in eine mit dieser korrespondierenden und in der trägerplattenartigen Widerlagerstelle ausgebildeten Ringnut in Eingriff bringbar ist, wobei die umlaufende Randwulst des Vorratsbehälters mit der Ringnut in der Widerlagerstelle derart zueinander ausgebildet sind, dass der Vorratsbehälter plan auf der Widerlagerstelle aufliegt.A further embodiment of an embodiment for the centering of the storage container provides that each storage container for the binder component and the hardener component for centering the outlet opening formed in the container bottom for the container contents to the inlet openings of the feed channels with its bottom peripheral peripheral bead in one with this corresponding and formed in the support plate-like abutment point annular groove is engageable, wherein the peripheral edge bead of the reservoir are formed with the annular groove in the abutment point to each other such that the reservoir rests flat on the abutment point.
Nachstehend sind Ausführungsbeispiele der Erfindung anhand der Zeichnung näher erläutert. Es zeigen:
- Fig. 1
- teils in Ansicht, teils in einem senkrechten Schnitt eine Basisstation der Vorrichtung zum Vermischen einer Binder-Komponente mit einer Härter-Komponente,
- Fig. 2
- eine Seitenansicht der Vorrichtung gemäß
Fig. 1 , teils in einem senkrechten Schnitt, - Fig. 2A
- in einer schematischen Darstellung die Zuführung der Binder-Komponente und der Härter-Komponente in die Mischkammer der Vorrichtung,
- Fig. 3
- eine Draufsicht auf ein Statorteil eines Mischkopfes,
- Fig. 4
- eine Seitenansicht des Mischkopfes, wobei das Statorteil im Schnitt dargestellt ist,
- Fig. 5
- einen Querschnitt durch den Mischkopf,
- Fig. 6
- einen Längsschnitt durch das Statorteil,
- Fig. 7
- eine Seitenansicht eines Rotorteils des Mischkopfes,
- Fig.8
- einen Teilquerschnitt durch einen Mischkopf entlang einer ringförmig umlaufenden Mischzone, wobei die Zähne des Statorteiles schraffiert und die Zähne des Rotorteils unschraffiert dargestellt sind,
- Fig. 9
- eine Seitenansicht der Mischvorrichtung, wobei ein mit einem akkubetriebenen Elektroantrieb verbundener Mischkopf an der Basisstation in Vormontagestellung angeordnet ist,
- Fig. 10
- eine Darstellung ähnlich
Fig. 9 , wobei jedoch der Mischkopf und der Elektroantrieb in Gebrauchsstellung angeordnet sind, - Fig.11
- teils in Ansicht, teils in einem senkrechten vergrößerten Schnitt einen auf der trägerptattenartig ausgebildeten Widerlagerstelte angeordneten und auf dieser zentrierten Vorratsbehälter,
- Fig. 12
- teils in Ansicht, teils in einem senkrechten, vergrößerten Schnitt einer weiteren Ausführungsform eines auf der trägerplattenartig ausgebildeten Widerlagerstelle angeordneten und auf dieser zentrierten Vorratsbehälters,
- Fig. 13
- eine schaubildliche Ansicht einer Vorrichtung zum Vermischen einer Binder-Komponente mit einer Härter-Komponente mit einer Einrichtung zur Vorab-Einspritzung einer kleinen Menge an Härter-Komponente in die Mischkammer,
- Fig. 14
- eine Seitenansicht der Vorrichtung nach
Fig. 13 , - Fig. 15
- teils in Ansicht, teils in einem senkrechten Schnitt eine Basisstation der Vorrichtung zum Vermischen einer Binder-Komponente mit einer Härter-Komponente mit einer Einrichtung zur Vorab-Einspritzung einer kleinen Menge an Härter-Komponente in den Zuführkanal für die Härter-Komponente zur Mischkammer,
- Fig. 16
- teils in Ansicht, teils in einem senkrechten Schnitt eines Abschnittes der Vorrichtung zum Vermischen mit den Zuführkanälen für die Härter-Komponente zur Mischkammer und mit einer, mit einem der beiden Zuführkanäle verbundenen Einrichtung zur Vorab-Einspritzung einer kleinen Menge an Härter-Komponente in die Mischkammer bei zurückgezogenem Kolben,
- Fig. 17
- die Vorrichtung gemäß
Fig. 16 mit der Einrichtung zur Vorab-Einspritzung der Härter-Komponente mit zurückgezogenem Kolben zur Einführung einer kleinen Menge an Härter-Komponente in die Mischkammer, wobei sich im Zuführkanal Härter-Komponente befindet, - Fig. 18
- die Vorrichtung mit der Einrichtung zur Vorab-Einspritzung der Härter-Komponente mit zurückgezogenem Kolben zur Freigabe des Zuflusses der Härter-Komponente zur Mischkammer, und
- Fig. 19
- eine teilweise im Längsschnitt dargestellte Seitenansicht einer Mischvorrichtung, die ein verschwenkbar gelagertes Aufnahmeelement für das Mischgut hat, das in drei unterschiedlichen Schwenklagen dargestellt ist.
- Fig. 1
- partly in view, partly in a vertical section, of a base station of the device for mixing a binder component with a hardener component,
- Fig. 2
- a side view of the device according to
Fig. 1 , partly in a vertical section, - Fig. 2A
- in a schematic representation, the supply of the binder component and the hardener component in the mixing chamber of the device,
- Fig. 3
- a top view of a stator of a mixing head,
- Fig. 4
- a side view of the mixing head, wherein the stator is shown in section,
- Fig. 5
- a cross section through the mixing head,
- Fig. 6
- a longitudinal section through the stator,
- Fig. 7
- a side view of a rotor part of the mixing head,
- Figure 8
- a partial cross section through a mixing head along an annular peripheral mixing zone, wherein the teeth of the stator part hatched and the teeth of the rotor part are shown unshaded,
- Fig. 9
- a side view of the mixing device, wherein a connected to a battery-powered electric drive mixing head is arranged at the base station in pre-assembly,
- Fig. 10
- a representation similar
Fig. 9 but wherein the mixing head and the electric drive are arranged in the use position, - fig.11
- partly in view, partly in a vertical enlarged section arranged on the carrier tread-like abutment tents and centered on this reservoir,
- Fig. 12
- partly in view, partly in a vertical, enlarged section of a further embodiment of an abutment point arranged on the carrier plate-like abutment and centered on this reservoir,
- Fig. 13
- 1 is a perspective view of an apparatus for mixing a binder component with a hardener component with a means for pre-injection of a small amount of hardener component in the mixing chamber,
- Fig. 14
- a side view of the device according to
Fig. 13 . - Fig. 15
- partly in view, partly in a vertical section, a base station of the device for mixing a binder component with a hardener component with a device for pre-injection of a small amount of hardener component into the supply channel for the hardener component to the mixing chamber
- Fig. 16
- partly in view, partly in a vertical section of a section of the device for mixing with the supply channels for the hardener component to the mixing chamber and with one, connected to one of the two feed channels means for pre-injection of a small amount of hardener component in the mixing chamber with retracted piston,
- Fig. 17
- the device according to
Fig. 16 with the means for pre-injection of the hardener component with retracted piston for introducing a small amount of hardener component into the mixing chamber, wherein hardener component is in the feed channel, - Fig. 18
- the device with the means for pre-injection of the hardener component with retracted piston to release the inflow of the hardener component to the mixing chamber, and
- Fig. 19
- a partially shown in longitudinal section side view of a mixing device having a pivotally mounted receiving element for the mix, which is shown in three different pivotal positions.
Eine im Ganzen mit 1 bezeichnete Vorrichtung zum Vermischen einer Binder-Komponente A und einer Härter-Komponente B zu einer gebrauchsfertigen Spachtelmasse für die Verspachtelung von Oberflächen von Fahrzeugkarosserien weist eine Basisstation 2 auf, an der ein mit der Binder-Komponente A, wie z. B. Polyester-Spachtelmasse, befüllter erster Vorratsbehälter 3a und zwei mit der Härter-Komponente B, wie z. B. einem Peroxyd befüllte zweite Vorratsbehälter 3b angeordnet sind. Deutlich ist erkennbar, dass die beiden Vorratsbehälter 3b für die Härter-Komponente B jeweils einen deutlich geringeren Querschnitt aufweisen als der Vorratsbehälter 3a für die Binder-Komponente. Die Summe der Querschnittsflächen der beiden Vorratsbehälter 3b für die Härter-Komponente B beträgt vorzugsweise etwa 2 % der Summe der Gesamtquerschnittsfläche der drei Vorratsbehälter 3a, 3b. Die beiden Vorratsbehälter 3b für die Härter-Komponente sind baugleich.A designated as a whole with 1 device for mixing a binder component A and a hardener component B to a ready-made filler for the filling of surfaces of vehicle bodies, has a
Wie in
An der Basisstation 2 ist eine Dosiereinrichtung angeordnet, die für jede Kartusche jeweils eine Aufnahme mit einer Widerlagerstelle 6a, 6b für den hohlzylindrischen Gehäuseabschnitt 4a, 4b der Kartusche aufweist. An dieser Widerlagerstelle 6a, 6b liegt der Gehäuseabschnitt 4a, 4b jeweils an, wenn die Kartusche in die Aufnahme eingesetzt ist.At the
Für jeden Schiebeboden 5a, 5b hat die Dosiereinrichtung jeweils einen Druckstempel 7a, 7b, der in Gebrauchsstellung an der aus der Kartusche auszupressenden Komponente A, B abgewandten Rückseite des Schiebebodens 5a, 5b angreift und mit Hilfe einer Schiebeführung 8a, 8b (
An ihren von den Schiebeböden 5a, 5b entfernten Endbereichen sind die Druckstempel 7a, 7b durch eine Brücke 9, die sich quer zu den Druckstempeln 7a, 7b erstreckt, fest miteinander verbunden. Die Brücke 9 ist drehfest mit einer Spindelmutter 10 verbunden, die mit einer Gewindespindel 11 verschraubt ist. Die Gewindespindel 11 steht zur Druckbeaufschlagung der Schiebeböden 5a, 5b mit der Welle eines ersten Elektromotors 12 in Antriebsverbindung, der an der Basisstation 2 an der den Kartuschen abgewandten Seite der Brücke 9 etwa in gerader Verlängerung des Druckstempels 7a für die Binder-Komponente A angeordnet ist. Zwischen der Welle und der Gewindespindel 11 kann ein Übersetzungsgetriebe angeordnet sein.At their end regions remote from the sliding
In
Die Druckstempel 7a, 7b werden mittels hydraulischer oder elektromotorischer Antriebe 50 gesteuert, die in einer Steuereinrichtung 55 zusammengefasst sind (
Bevorzugterweise weist die Vorrichtung 1 einen Vorratsbehälter 3a für die Binder-Komponente A und mindestens einen Vorratsbehälter 3b für die Härter-Komponente B auf. Bei nur einem Vorratsbehälter 3b für die Härter-Komponente B steht dieser über einen Zuführkanal 13b mit der Mischkammer 14 in Verbindung. Es besteht auch die Möglichkeit, einen einzigen Vorratsbehälter 3b über zwei getrennte Zuführkanäle mit der Mischkammer 14 zu verbinden. Werden zwei Vorratsbehälter 3b für die Härter-Komponente B eingesetzt, so erfolgt die Verbindung zu der Mischkammer 14 über zwei getrennte Zuführkanäle.The
Bevorzugterweise weist die Vorrichtung 1 für die Härter-Komponente B mindestens zwei Vorratsbehälter 3b auf, die über getrennte Zuführkanäle 13b mit der Mischkammer 14 verbunden sind.Preferably, the
Um einen Vorlauf der Härter-Komponente B in die Mischkammer 14 gegenüber der Binder-Komponente A zu erreichen, werden die Antriebe 50 für die Druckstempel 7a, 7b für die Schiebeböden 5a, 5b der Vorratsbehälter 3a, 3b für die Binder-Komponente A und die Härter-Komponente B vermittels der Steuereinrichtung 55 derart gesteuert, dass vor dem Eintritt der Binder-Komponente A in die Mischkammer 14 bereits die Härter-Komponente B in die Mischkammer 14 eingeführt ist, so dass die gesamte in die Mischkammer 14 eingeführte Menge an Binder-Komponente A mit Härter-Komponente B vermischt ist (
An ihrem dem Schiebeboden 5a, 5b gegenüberliegenden Ende haben die Kartuschen jeweils eine Entnahmeöffnung für die in der Kartusche bevorratete Komponente A, B. Jede der Entnahmeöffnungen ist jeweils über einen separaten Zuführkanal 12a, 12b mit einer gemeinsamen Mischkammer 14 verbunden, die in einem lösbar mit der Basisstation 2 verbindbaren Mischkopf 15 angeordnet ist. Zwischen der Wandung des Zuführkanals 12a, 12b und dem zylindrischen Gehäuseabschnitt 4a, 4b der dem Zuführkanal 12a, 12b jeweils zugeordneten Kartusche kann eine Dichtung, wie z. B. ein O-Ring angeordnet sein.At their end opposite the sliding bottom 5a, 5b, the cartridges each have a removal opening for the components A, B stored in the cartridge. Each of the removal openings is in each case connected via a separate supply channel 12a, 12b to a
In
Das Verbinden des Mischkopfs 15 mit der Basisstation 2 erfolgt durch Aufstecken der Eintrittsöffnungen 17a, 17b auf die Austrittsöffnungen 18a, 18b. Die Eintrittsöffnungen 17a, 17b und die Austrittsöffnungen 18a, 18b sind dazu als zueinander passenden Steckkupplungsteile ausgebildet, die in Verbindungsstellung dicht miteinander verbunden sind.The mixing
In
In
Zwischen dem Statorteil 16 und dem Rotorteil 19 ist die Mischkammer 14 gebildet. In
In
Das Rotorteil 19 und das Statorteil 16 sind mit Hilfe eines Gleitlagers 27 relativ zueinander verdrehbar gelagert. Das Gleitlager 27 hat an dem Statorteil 16 einen äußeren Lagerring 28 und an dem Rotorteil 19 einen inneren Lagerring 29, die in radialer und axialer Richtung gegeneinander abgestützt sind. Das Gleitlager 27 hat in Richtung der Längsachse 20 Axialspiel, wodurch die Zähne 24 des Rotorteils 19 mit ihren entgegen der in
In
Bei den in
Die Vorrichtung 1 zum Vermischen einer Binder-Komponente A und der Härter-Komponente B zu einem pastösen oder flüssigen Mischgut, insbesondere zur Herstellung einer gebrauchsfertigen Spachtelmasse für die Verspachtelung von Oberflächen von Fahrzeugkarosserien, weist also zur getrennten Bevorratung der Komponenten A, B Vorratsbehälter 3a, 3b auf, die mit den Komponenten A bzw. B befüllt sind. Die Vorratsbehälter 3a, 3b sind über getrennte Zuführkanäle 13a, 13b mit mindestens einer Mischkammer 14 verbunden. Die Mischkammer 14 hat mindestens eine Abgabeöffnung 21 für das Mischgut. Zum Fördern der Komponenten A, B aus den Vorratsbehältern 3a, 3b durch die Mischkammer 14 zu der Abgabeöffnung 21 ist eine Dosiereinrichtung vorgesehen. Die Härter-Komponente B ist in mindestens zwei Vorratsbehältern 3b angeordnet, die über getrennte Zuführkanäle 13b mit der Mischkammer verbunden sind.The
Gemäß
Die vorangehend beschriebene Vorrichtung 1 zum Vermischen der Binder-Komponente A mit einer Härter-Komponente B ist gemäß
Diese Einrichtung 90 besteht aus einem zylindrischen Gehäuse 91, in dessen Innenraum 91a ein stabförmiger Kolben 92 der vermittels eines Druckluftantriebes in Pfeilrichtung X bewegbar ist (
Die Arbeitsweise und die Steuerung der Einrichtung 90 ist wie folgt:
Bei dem in
In
Claims (31)
- Device (1) for mixing a binding component (A) and a curing component (B) to a pasty or liquid material to be mixed, in particular for producing a ready-made filler for the filling of surfaces of vehicle bodies, whereby the device has store tanks (3a, 3b) for the separate storage of the components (A, B) and at least one mixing chamber (14) which is connected by separate supplying channels (13a, 13b) with the single store tanks (3a, 3b), whereby the mixing chamber (14) has at least one delivery opening (21) for the material to be mixed and whereby a metering device is provided for the delivery of the components (A, B) from the store tanks (3a, 3b) through the mixing chamber (14) to the delivery opening (21),
whereby the device (1) for the curing component (B) has at least one store tank (3b) which is connected with the mixing chamber (14) by at least one, preferably by at least one or two separate supplying channels (13b), whereby the supply of the binding component (A) and of the curing component (B) to the mixing chamber (14) takes place by means of control devices in such a manner that the curing component (B) is supplied to the mixing chamber (14) with a slight advance with respect to the binding component (A),
characterized in
that a thixotropic binding component (A) is placed in the store tank (3a) for the binding component (A) and that the device (1) has a device placed before the mixing chamber (14) for increasing the flowability of the binding component (A). - Device according to claim 1,
characterized in
that the device (1) for the curing component (B) has at least two store tanks (3b) which are connected with the mixing chamber (14) by separate supplying channels (13b). - Device according to any of the claims 1 or 2,
characterized in
that the metering device is configured in such a way that with a bubble free mixing of the components (A, B) the mixing ratio VB:VS from the volume flow VB of the curing component (B) supplied to the mixing chamber and the sum VS of the volume flow VB and the volume flow VA of the binding component (A) supplied to the mixing chamber is in the range of the 1% to 4%, in particular between 1,5% and 3% and preferably approximately 2%. - Device according to any of the claims 1 to 3,
characterized in
that
the device for increasing the flowability has at least one element placed in the supplying channel (13a) for the binding component (A) which can be driven in such a way that kinetic energy is brought into the binding component (A). - Device according to any of the claims 1 to 4,
characterized in
that the store tanks (3a, 3b) are placed on a base station (2), that the mixing chamber (14) is formed in a mixing head (15) which can be detachably connected with the base station (2) and that the supplying channels (13a, 13b) are guided and the mixing head (15) configured in such a manner that after the mixing process is terminated and the mixing head (15) separated from the base station (2) all the rests of the material to be mixed remain in the mixing head (15). - Device according to any of the claims 1 to 5,
characterized in
that the supplying channel (3a) for the binding component (A) has an inner and an outer limiting wall which are spaced from each other by an annular gap and are movable with respect to each other in circumferential direction of the annular gap, whereby at least one of these limiting walls as element for bringing in the kinetic energy has a projecting part (22). - Device according to any of the claims 1 to 6,
characterized in
that at least the outer limiting wall is made of a transparent material and that the curing component (B) differs from the binding component (A) preferably by its colour. - Device according to any of the claims 1 to 7,
characterized in
that the elements for bringing in kinetic energy are placed in several levels spaced from each other by gaps in direction of the rotational axis of the motion of revolution. - Device according to any of the claims 1 to 8,
characterized in
that the planes of extension of at least two levels with elements for bringing in kinetic energy are tilted to each other. - Device according to any of the claims 1 to 9,
characterized in
that the metering device is configured in such a manner that for a bubble free curing component (B) the quantity of curing component (B) supplied to the mixing chamber (14) is drawn approximately in equal quantities from the single store tanks (3b) for the curing component (B). - Device according to any of the claims 1 to 10,
characterized in
that the store tank (3a) for the binding component (A) is preferably placed approximately in the middle between the store tanks (3b) for the curing component (B). - Device according to any of the claims 1 to 11,
characterized in
that the store tanks (3a, 3b) are configured respectively as cartridges with a sliding bottom (5a, 5b) displaceable in a hollow cylindrical housing section (4a, 4b), that respectively a seat with a point of abutment (6a, 6b) for the hollow cylindrical housing section (4a, 4b) is provided on the base station (2) for each cartridge and that a pressure piston (7a, 7b) is positioned adjustable respectively to the point of abutment (6a, 6b) with which a pressure can be charged onto the sliding bottom (5a, 5b) of the respective cartridge for pressing out the component (A, B) which is therein. - Device according to any of the claims 1 to 12,
characterized in
that the pressure pistons (7a, 7b) are connected by a bridge (9) with each other preferably at their end areas away from the sliding bottoms (5a, 5b) and that the bridge (9) is movable with respect to the points of abutment (6a, 6b) by means of an actuator. - Device according to any of the claims 1 to 13,
characterized in
that the actuator has a drive shaft which is connected with the bridge (9) for displacing the bridge (9) over a spindle nut (10) placed on a threaded spindle (11). - Device according to any of the claims 1 to 14,
characterized in
that the actuator has an electric motor (12) and that an accumulator is preferably provided for the current supply of the electric motor (12). - Device according to any of the claims 1 to 15,
characterized in
that the actuator has a pneumatic or a hydraulic working cylinder and/or a pneumatic or hydraulic motor. - Device according to any of the claims 1 to 16,
characterized in
that the drive shaft can also be drivingly connected with a handwheel. - Device according to any of the claims 1 to 17,
characterized in
that the drive shaft is drivingly connected with at least one mixing element placed in the mixing chamber (14). - Device according to any of the claims 1 to 18,
characterized in
that the mixing chamber (14) is formed in the type of an annular gap between an inner and an outer chamber wall, whereby the chamber walls are positioned twistable to each other about a rotational axis and that the mixing elements are teeth (23, 24) placed on the sides of the chamber walls which are turned to each other, teeth to which tooth spaces are adjacent in circumferential direction of the mixing chamber (14) and that the teeth during the motion of rotation rotate past each other by being offset to each other in direction of the rotational axis in such a manner that the components (A, B) are mixed with each other by division. - Device according to any of the claims 1 to 19,
characterized in
that the inner chamber wall and the outer chamber wall are positioned twistable to each other with an axial backlash, that the teeth (24) of the inner chamber wall are offset to the teeth (23) of the outer chamber wall in axial direction in such a manner that front side faces (30, 31) turned to each other, orientated in axial direction, of at least one tooth (24) of the inner chamber wall and of at least one tooth of the outer chamber wall can be positioned against each other by a force acting in axial direction between the inner chamber wall and the outer chamber wall and that these front side faces (30, 31) are inclined with reference to a surface plane placed normal to the rotational axis with an angle (α) such that the front side faces (30, 31) glide on each other during the mixing process without material being removed from the teeth (23, 24) into the material to be mixed (C). - Device according to any of the claims 1 to 20,
characterized in
that additionally to the first electric motor (12) a second electric motor (25) is provided which is drivingly connected with at least one mixing element and that the electric motors (12, 25) are preferably connected with a control device which is configured in such a way that the first electric motor is switched on when switching on or with a time delay after the second electric motor (25) has been switched on. - Device according to any of the claims 1 to 21,
characterized in
that a receiving element (32) for the material to be mixed (C) is placed below the delivery opening (21), this element (32) being movable against a restoring force from a position of rest to a working position in such a manner that it is moved away from the delivery opening (21) when charging with the material to be mixed (C) under the influence of its gravity. - Device according to any of the claims 1 to 22,
characterized in
that the receiving element (32) is connected with the mixing head (15) swivellable from the position of rest into the working position. - Device according to claim 23,
characterized in
that the metering device can be triggered by a switch clock for mixing a predetermined quantity of the material to be mixed (C). - Device according to any of the claims 1 to 24,
characterized in
that the inner chamber wall is placed on a rotor part (19) and the outer chamber wall on a stator part (16) and that the rotor part (19) is positioned twistable in the stator part (16) about a rotational axis by means of a rotational bearing and is fixed in axial direction with respect to the stator part (16) by means of a supporting bearing. - Device according to any of the claims 1 to 25,
characterized in
that the supporting bearing has a rotary table (35), twistable about the rotational axis, on which the rotor part (19) comes to bear with a front side in position of use. - Device according to any of the claims 1 to 26,
characterized in
that a device (90) for the preliminary injection of a small quantity of curing component (B) is connected with one of the two supplying channels (13a; 13b) for the curing component (B), this device consisting of a cylinder (91) with one piston placed in its inner space (91 a) driven by compressed air or differently, whereby the piston (92) is controllable so that during the supply of a small quantity of curing component (B) the supplying channel (13a; 13b) for the supply of further quantities of curing component (B) is closed and after termination of the supply of a small quantity of curing component (B) the piston (92) introduced in the supplying channel (13a; 13b) is withdrawn from the supplying channel (13a; 13b) and thus the further supply of curing component (A) into the mixing chamber (14) is released. - Device according to any of the claims 1 to 27,
characterized in
that each store tank (3a, 3b) for the binding component (A) and the curing component (B) for centering the outlet opening (61) configured in the tank bottom (60) for the container content to the inlet openings of the supplying channels (13a, 13b) in or on its bottom plate (60') has ring-shaped or partially ring-shaped outwards orientated beads (65) which engage into corresponding groove shaped recesses (75) in the point of abutment (6a, 6b) configured in the type of a carrier plate for the store tank (3a, 3b), whereby the beads (65) and the groove shaped recesses (75) corresponding with them are configured to each other in such a manner that each store tank (3a, 3b) bears plainly with its tank bottom (60) on the point of abutment (6a, 6b). - Device according to any of the claims 1 to 27,
characterized in
that each store tank (3a, 3b) for the binding component (A) and the curing component (B) for centering the outlet opening (61) configured in the tank bottom (60) for the container content to the inlet openings of the supplying channels (13a, 13b) with its bottom sided peripheral marginal bead (80) or peripheral edge border can engage into a ring groove (95) corresponding with this bead and configured in the carrier plate point of abutment (6a, 6b), whereby the peripheral marginal bead (80) of the store tank (3a, 3b) and the ring groove (95) in the point of abutment (6a, 6b) are configured to each other so that the store tank (3a, 3b) plainly bears with its bottom plate (60') on the point of abutment (6a, 6b). - Method for blending a binding component and a curing component by using a device according to any of the claims 1 to 29,
characterized in
that the binding component (A) and the curing component (B) are supplied to a mixing chamber (14) by intercalating a metering device or by excluding a metering device, mixing chamber to which the curing component (B) is supplied with an advance with respect to the binding component (A). - Method according to claim 30,
characterized in
that for the advance of the curing component (B) with respect to the binding component (A) into the mixing chamber (!4) by simultaneously avoiding a further supply of curing component (B) a small quantity of curing component (B) is pressed out of the supplying channel (30a; 30b) into the mixing chamber by means of a driven piston (92), whereby the supply of the curing component (B) and of the binding component (A) takes place after withdrawal of the piston (92) out of the supplying channel (13a; 13b).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005009220 | 2005-02-25 | ||
DE200520005833 DE202005005833U1 (en) | 2005-02-25 | 2005-04-11 | Dispenser and mixer for two component reactive resin-fillers e.g. for repair of automobile bodywork |
PCT/EP2006/001710 WO2006089769A1 (en) | 2005-02-25 | 2006-02-24 | Device and method for mixing a binding component and a curing component to produce a ready-made filler |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1850970A1 EP1850970A1 (en) | 2007-11-07 |
EP1850970B1 true EP1850970B1 (en) | 2009-07-08 |
Family
ID=36258683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06707251A Not-in-force EP1850970B1 (en) | 2005-02-25 | 2006-02-24 | Device and method for mixing a binding component and a curing component to produce a ready-made filler |
Country Status (2)
Country | Link |
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EP (1) | EP1850970B1 (en) |
WO (1) | WO2006089769A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202010016702U1 (en) * | 2010-12-17 | 2011-03-24 | Vosschemie Gmbh | Device for producing a ready-to-use filler by mixing a binder and a hardener component |
US9475015B2 (en) | 2010-01-25 | 2016-10-25 | Vosschemie Gmbh | Unit for producing ready-to-use fillers by mixing a binder component and a curing agent component |
DE202011001290U1 (en) * | 2010-01-25 | 2011-04-14 | Vosschemie Gmbh | Canned container for components for the preparation of ready-to-use putties by mixing a binder and a hardener component |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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DE50002001D1 (en) * | 2000-09-25 | 2003-06-05 | Muehlbauer Ernst Gmbh & Co Kg | Arrangement for the proportionate application of two flowable substances, in particular for dental purposes |
DE20307518U1 (en) | 2002-07-31 | 2003-08-07 | Vosschemie GmbH, 25436 Uetersen | Hose mixer for mixing pasty masses or liquids from at least two components and receptacle of the components |
EP1570805A1 (en) * | 2004-03-01 | 2005-09-07 | 3M Espe AG | Device and method for generating a multi-component compound |
NL1026872C2 (en) * | 2004-08-19 | 2006-02-21 | Bostik Findley B V | Caulking gun, associated package with sealant component, mixing unit and connector, and method of use thereof. |
DE102004044655B4 (en) | 2004-09-15 | 2009-06-10 | Airbus Deutschland Gmbh | Painting device, painting arrangement, method for painting a curved surface of an aircraft and use of an inkjet device for painting an aircraft |
-
2006
- 2006-02-24 WO PCT/EP2006/001710 patent/WO2006089769A1/en active Application Filing
- 2006-02-24 EP EP06707251A patent/EP1850970B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
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WO2006089769A1 (en) | 2006-08-31 |
EP1850970A1 (en) | 2007-11-07 |
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