EP1555071A1 - Method for mixing and device for fill level adjustment of pasty multi-component materials in containers - Google Patents

Abstract

The system to bring together two paste components, to be mixed together, has a hollow attachment with inflow openings (2,3) to take each component into its hollow interior (4) from their separate containers. When the attachment is filled with the correct proportions, the contents are transferred through an opening (1) to a static or dynamic mixer, and the attachment is discarded.

Description

The invention relates to a mixing method and a device for level control in containers with pasty multicomponent materials to be mixed.

Multi-component materials for automix systems are used in tubular bag films or double cartridges offered. All components must have the same volume or at of 1: 1 different mixing ratios have the same level, so that in the application the correct ratio of the components is discharged.

As a rule, the individual components are passed through a mixing attachment (hereinafter "mixer"). called) with a static or dynamic mixing device passed before the Application are fed and later cure. Such mixing attachments are for ordinary on the discharge device or the metering device for the cartridges or tubular bag placed.

Since it is not possible for technical reasons, when filling the cartridges / bag always Setting exactly the same level is the first time you use the materials mostly for overdosing one of the components.

The resulting misdosed mixture then remains during the further promotion and mixture partially still in the mixer and is taken off. The material with the wrong one Mixing ratio often does not harden and must therefore be disposed of in pasty form, which can lead to pollution. This often requires relatively large amounts of material be discarded. One manages that the components are pressed out as long as until the user thinks in his experience that a working hardening mixture originated. This can lead to further increased material loss.

The task was to develop a device that is used to treat all individuals mixing components filled chambers of the container to an equal level level before bringing the multi-component material through a subsequently aufzusetzenden static or dynamic mixing attachment is promoted, and produce the cheapest possible is and causes little material loss and the least possible pollution.

The task is solved by a hollow attachment, in which the components - without mixed to be discharged - until the level of the component container is the same. Of the Attachment is, as well as the mixer, detachable placed on the dosing device. In the essay will as long as material is transported in until both components can be conveyed. Is to the tower advantageously transparent.

The material to be discarded is then inside the device cavity. After that the hollow top is discarded with the discharged material and by the functional one Replaced mixing attachment.

A) separaten Behältern für die einzelnen Komponenten mit je einer Öffnung;

B) Austrag- bzw. Dosiervorrichtung zum Fördern der Komponenten aus den Öffnungen;

C) einem statischen oder dynamischem Mischaufsatz zum Aufsetzen auf die Dosiervorrichtung so, daß er mit den Öffnungen der Behälter verbunden ist und die Komponenten ihn durchströmen können;
wobei die erfindungsgemäße Vorrichtung

D) einen hohlen Aufsatz ohne Mischfunktion- mit separaten Einlassöffnungen (2,3) für jede Komponente darstellt, der mindestens einen Hohlraum (4,5) sowie Mittel zum Aufsetzen auf die Dosiervorrichtung B) an der Stelle (2,3) aufweist, wo das Aufsetzen des statischen oder dynamischen Mischers C) vorgesehen ist.

The invention thus relates to a device D) for level control in containers with pasty multicomponent materials to be mixed as an additive to a mixing arrangement with

A) separate containers for the individual components, each with an opening;

B) Discharge or dosing device for conveying the components from the openings;

C) a static or dynamic mixing attachment for placing on the dosing device so that it is connected to the openings of the container and the components can flow through it;
wherein the device according to the invention

D) a hollow attachment without Mischfunktion- with separate inlet openings (2,3) for each component, which has at least one cavity (4,5) and means for placing on the metering device B) at the point (2,3), where the placement of the static or dynamic mixer C) is provided.

Conveniently, the empty housing of the mixing attachment without the otherwise existing Mixing element can be used as a hollow attachment. This part already has the necessary fastening device for attachment to the discharge. It is possible the outlet opening to be closed with a lid or equipped with a valve. To this This ensures a clean reception and disposal of the discharged material.

The means for placing on the metering device may e.g. Screw thread or plug, Rast- or bayonet joints, as they are familiar to the expert.

Fig. 1 zeigt den hohlen Aufsatz mit einem Hohlraum 4

Fig. 2 zeigt den hohlen Aufsatz mit zwei Hohlräumen 5.

The invention will be explained with reference to the figures as follows:

Fig. 1 shows the hollow top with a cavity. 4

2 shows the hollow attachment with two cavities 5.

The material flow flows through the openings 2,3 in the cavities until all components be promoted visibly and thus the intended mixing ratio is reached. The Components can be in a common cavity 4 or in separate cavities. 5 be directed. Subsequently, the hollow attachment is removed and replaced by the mixer.

The invention also relates to a method for mixing pasty Mehrkomponentenmateralien in predetermined proportions, wherein the flow, in which the proportions the components are outside the intended range, in a separate hollow Attachment - with at least one cavity 4,5 - for placement on the metering at the Place, where the placement of the static or dynamic mixer is provided, collected and disposed of therein.

a) die oben beschriebene Vorrichtung D) an der Stelle (2,3), wo das Aufsetzen des statischen oder dynamischen Mischers vorgesehen ist, an der Austrag- oder Dosiervorrichtung B) angebracht wird,

b) die Austrag- oder Dosiervorrichtung B) betätigt wird,

c) der Vorlauf, bei dem die Mengenverhältnisse außerhalb des vorgesehenen Bereichs liegen, in der Vorrichtung D) aufgefangen wird,

d) die Vorrichtung D) abgenommen und entsorgt wird, und anschließend

der Mischaufsatz C) aufgesetzt und die Komponenten gemischt werden.The process steps can be described so that

a) the above-described device D) at the point (2,3) where the placement of the static or dynamic mixer is provided, is attached to the discharge or metering device B),

b) the discharge or metering device B) is actuated,

c) the feed, in which the proportions are outside the intended range, is collected in the device D),

d) the device D) is removed and disposed of, and then

the mixing cap C) are placed and the components are mixed.

It is possible additionally to make the openings 1, 2, 3 of the device closable to avoid pollution altogether.

Advantages of the solution according to the invention are in particular the reduction of the waste volume and the cleaner handling of the waste.

The device according to the invention can be used for all multicomponent systems, in which promoted, dosed and at the same time by means of static or dynamic mixer attachment mixed or homogenized.

Claims (3)

Device D) for level control in containers to be mixed with pasty multicomponent materials as an addition to a mixing arrangement with A) separate containers for the individual components, each with an opening; B) Discharge or dosing device for conveying the components from the openings; C) a static or dynamic mixing attachment for placing on the dosing device so that it is connected to the openings of the container and the components can flow through it; the device D) being a hollow attachment without mixing function, with separate inlet openings (2, 3) for each component, having at least one cavity (4, 5) and means for placing on the dosing device B) at the point (2, 3) where the placement of the static or dynamic mixer C) is provided. A method for mixing pasty Mehrkomponentenmateralien in predetermined proportions using a device D) according to claim 1, characterized in that the flow, in which the ratios are outside the intended range, is collected in the device D) and disposed therein. A method for mixing pasty Mehrkomponentenmateralien in predetermined proportions using a mixing arrangement according to claim 1, characterized in that a) a device D) according to claim 1 at the point (2,3) where the placement of the static or dynamic mixer is provided, is attached to the discharge or metering device B), b) the discharge or metering device B) is actuated, c) the feed, in which the proportions are outside the intended range, is collected in the device D), d) the device D) is removed and disposed of, and then e) the mixing attachment C) is placed and the components are mixed.

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