DE7431119U - Hand mixer for producing small amounts of plastic, especially foamable polyurethane - Google Patents

Description

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Applicant: Feiten & Guilleaume Schaltanlagen GmbH 415 Krefeld At the fire courtyard

Pl 4187 5 Cologne-Mülheim, September 10, 1974

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Hand mixer for the production of small amounts of plastic, especially foamable polyurethane

The invention "relates to a hand mixer for the production of small Plastic quantities, in particular foamable polyurethane, with a cylindrical container in which the components of the plastic to be mixed are stored, and one that can be operated by hand Mixing flask. Λ

Such hand mixers should be ready for use quickly easy handling permitted.

Pl 4187 - 2 - 9/10/74

Mixers for producing plastics are available in a wide variety of embodiments known. This includes, for example, a device for mixing at least two chemically reacting with one another Components, in particular for the production of foam, as used to fill cavities with foam (DT-OS 2 249 634). This device consists of a foam shot system in the form of three parallel cylinder arrangements in a housing, each are connected via lines with storage containers for the components to be mixed and for the propellant. To operate the A separate hydraulic system is used for the drive piston in one of the cylinders. With this mixing device, which is mainly used for Is used to fill up body oil spaces, it comes first L. ', Never on it, smallest shot amounts down to 0.5 g per shot to be adhered to, at repeated intervals. The disadvantage of this device is that it consists of many individual parts and is essentially stationary.

A device for the separate storage and mixing of the components of a multi-component plastic is also known, in which the mixing of the plastic components is carried out by hand in a container (DBGM 6 600 184). In this container there is a system of two perforated disks which can be displaced relative to one another and which are each connected to an outwardly guided axis. One axis is designed as a hollow axis, inside of which the second axis is guided. Both axes are provided with handles. The interior of the container is divided into two chambers by intermediate floors for the storage of the two components of the plastic. The disadvantage of this design is the introduction of the intermediate floors and the subsequent closing of the openings in the chambers formed by the intermediate floors after the plastic has been stored off components. Care must also be taken that during the mixing process the two perforated disks are shifted against one another in such a way that the holes are just opposite one another. ⁱ

743111912.1274

Fl 4187-3-10.9.74

The invention is based on the object of simplifying a hand mixer for producing small amounts of plastic and the To reduce the number of individual parts as well as to prepare for mixing the plastic components and to facilitate operation.

This object is achieved according to the invention in that the container can be closed with a lid, which has a bore in the middle area for the rod of the mixing piston which is provided with a handle has, which is designed as a perforated disk, the underside of which is provided with spike-like tips, the components of the plastic to be mixed in foil packets in the space between the perforated disc and the bottom of the container are stored.

The advantages achieved by the invention are, in particular, that the foil packets enclosed in the required Mixing ratio weighed amounts of plastic components (e.g. isocyanate and polyol) and blowing agent (e.g. fluorine-halogen-hydrocarbon) can be easily inserted into the container. Mixing by hand is easy and takes only a short time.

The lid is used to close the container securely and to allow the reaction mass to flow out in an orderly manner according to a further embodiment of the invention with the container screwable and provided with a small opening in the outer area, which has a spout-like approach.

If you consider the container as a so-called disposable item for single use, it is sufficient to use this according to the invention Manufacture sheet metal or plastic.

In the case of multiple use, according to a further embodiment According to the invention, the container can be provided with an insert made of plastic inside.

743111912.1Z74

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Fl 4187 - 4 - 10.9.74

An embodiment of the invention is shown in the drawing and is described in more detail below. The figure shows a hand mixer in a side view in section.

As the figure shows, the hand mixer consists of a container 1, which can be closed with a cover 2. The cover 2 contains a bore 3 for an axis 5 in the central area, at which a handle 4 is attached to one end and a perforated disk 6, the side of which is turned towards the bottom of the container 1, at the other end , is provided with spike-like tips 7. In the space between the perforated disk 6 and the bottom of the container 1 are foil packets 8, 9 and 10 stored, which on the one hand contain the components of the plastic and on the other hand the required propellant. The cover 2, in turn, is provided with an opening in the outer bore which merges into a spout-like extension 11. Should the mixer are used several times, it is useful to line the container 1 with an insert 1 ^ made of plastic, the is removed after each single use and is replaced by a new insert 12.

The mixer works as follows: Into the open container 1 the foil packets 8, 9 and 10 are inserted. Thereupon the cover 2 with the mixing flask is inserted and then the cover 2 is screwed to the container 1. By vigorously moving the mixing piston back and forth, the foil packs are removed 8, 9 and 10 holed and the contents quick and good mixed. The reaction mass can through the opening 11 in the to filling cavity are filled. The foil packs in which the reaction components are welded can be made from organic film, e.g. terephthalic acid polyester, polyethylene, Polypropylene or made of combined foil, as well as thin metal foil.

743111912.12.74

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The reaction mass can be used to fill cavities for the purpose of heat and sound insulation, e.g. on construction sites, also for the foaming of tubular structures, as Corrosion protection, cavity sealing of car bodies and ■ for pulling cable sleeves to protect against penetration Water, moisture and for mechanical reinforcement of the socket shells.

7431 HS 12.12.74

Claims (5)

FI 4187 - 1 - 9/10/74 Protection claims "Hand mixers for the production of small amounts of art, especially of foamable polyurethane, with a cylindrical container in which the components to be mixed of the plastic are stored, as well as a manually operated mixing piston, characterized in that that the container (1) can be closed with a lid (2) which has a bore (3) in the middle area for the rod (5) of the mixing piston which is provided with a handle (4) and which is designed as a perforated disc (6) is, the underside of which is provided with spike-like tips (7), the components to be mixed being the plastic ^ n foil packets (8, 9, 10) stored in the space between the perforated disk (6) and the bottom of the container (1) are. 2. Hand mixer according to claim 1, characterized in that the cover (2) with the container (1) can be screwed and is provided with a small opening in the outer area, which has a spout-like extension (11) having, 3. Hand mixer according to claim 1 or 2, characterized in that the container (1) consists of Sheet is made. 4. Hand mixer according to claim 1 or 2, characterized in that the container (1) consists of Made of plastic. 5. Hand mixer according to claim 3 or 4, characterized in that the container (1) in the Inside is provided with an insert (12) made of plastic. 743111912.1Z74