DE2350744A1 - MIXING DEVICE - Google Patents

Description

UEXKÜLL & STOLBERG PATENTANWÄLTE

2 HAMBURG 52. .-.

BESELERSTRASSE 4

DR. J.-D. FRHR. by UEXKÜLL

DR. ULRICH GRAF STOLBERG DiPL-ING. JÜRGEN SUCHANTKE

FOSCOLOR Ltd. η ο r η -? / /

Bickershaw Lane ₃ Abram,

(prio October 16, 1972 Near Wigan, Lancashire BR-PA ^ 766l {/ 72)

October 8, 1973

Mixing device

The invention relates to a mixing device for mixing predetermined amounts of materials from different Bodies are feedable with a rotatable mixer.

It is an object of the invention to provide _s a mixing device which is very simple and requires low maintenance and smaller amounts of various materials in precisely gauged ratio mixed.

For this purpose, a mixing device of the aforementioned type, the invention proposes ^ _s which thereby characterized that measuring means for supplying metered quantities of material to. Mixer are provided which contains a cylinder and a rotatable mixing blade, and that the cylinder has an opening in the wall and between a first position in which the opening for supplying the Ilaterialrcengen is open, and one

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second position, in which the material from the mixer in a receiving device arrives, rotatable about its axis is.

The mixing device according to the invention thus enables the amounts of material to be mixed to be introduced and the mixed material to be discharged from the mixer by simply turning the mixer chamber. surrounding cylinder _s without special tilting movements would be required or special conveying or transport devices would have to be used.

The invention is explained in more detail below with reference to the schematic figures.

Figure 1 shows in section an embodiment of an inventive Mixing device.

Figure 2 shows two different working positions of one Part of the mixing device from Figure 1..

Figures 3 and 4 show different working positions of the elements of the mixing device from FIG. 1.

The mixing device shown in simplified form according to FIG. 1 contains two funnels 1 which are arranged next to one another and which _{receive different materials 3,} preferably particulate materials. Below each funnel there is a measuring

40981R / 0908 ^ ORIGINAL _ ₃ _

device comprising a rotatable cylinder 2 and associated stationary flanges 3. Each of these measuring cylinders has an opening k in its wall which is connected to a measuring chamber 5. The volume of at least one measuring chamber 5 is preferably adjustable, which can be done, for example, by means of an adjusting screw 6, as is indicated for the left measuring chamber.

A mixer 7, which has a stationary, cylindrical housing 8, is located below the measuring devices that a rotatable cylinder 9 is used. The housing 8 has an opening and a splash Inlet Io and an outlet 11. An elongated slot is provided in the wall of the cylinder 9 and is coaxial in it a rotatable mixer blade 12 attached.

Below the mixer 7 there is a receiving device 13 which is connected to the inlet Ik of a die casting machine 15.

The receiving device I3 is at a pivot point 16 (Figure 2) stored so that it can be pivoted between positions A and B (Figure 2). She is re the vertical plane formed asymmetrically by the pivot axis, so that it is from position A to position B. tilts when the material level in the receiving device

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has sunk sufficiently and tilts in the opposite direction when that material level rises sufficiently. A Microswitch 17 in the path of movement of the receiving device closes or interrupts the circuit for the controlling one Drive of the measuring devices and the mixer 7

If this controlling drive is activated ₃ , the measuring cylinders are rotated, and during each rotation the chambers 5 are filled with material from the respective funnel 1 (Figure 1) due to gravity and this material is then due to gravity into the mixer 7 below (Figure 3 ) promoted. The cylinder 9 rotates synchronously with the measuring cylinders 2, the elongated slot in the cylinder wall being in the upper position when material is dispensed from the measuring cylinders 2, which then enters the cylinder 9 directly. During the subsequent part of the rotation, the mixing paddle 12 rotates at a greater speed than the cylinder 9j so that in the second position of the elongated slot in the cylinder wall, i.e. in the position in which it is at the bottom (Figure h), the material is sufficient is mixed. As a result of gravity, this mixed material then reaches the receiving device 13, from where it flows into the inlet Ik of the die-casting machine 15.

If the receiving device 13 contains more than the predetermined minimum amount of material, it is in position A ₁

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in which the 'drive is not activated and the measuring devices and the mixer 7 are stationary. If the content in the receiving device 13 falls below a predetermined one Minimum value, the receiving device 13 tilts from position A to position B as a result of gravity and is actuated thereby the microswitch 17, the circuit for activating the drive of the measuring devices and the mixer 7 closes. A new amount of premixed material is then fed to the receiving device .13 until the amount of material in the receiving device has reached a predetermined maximum value and the center of gravity the receiving device has changed so that it tilts from position B to position A. This is where the

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Microswitch 17 / and interrupts the electric circuit for the drive.

The mixing device according to the invention is particularly suitable for dosing a dye to plastic powders and / or Granules, with the dye in one of the funnels and the plastic in the other funnel.

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Claims (2)

Expectations Measuring device for mixing predetermined quantities of materials, which can be fed in from different locations, with a rotatable mixer, characterized in that measuring devices (2) are provided for supplying measured quantities of material to the mixer (7), which has a cylinder (9) and a rotatable mixing blade (12), and that the cylinder (9) has an opening in its wall and between a first position, in which the opening for supplying the quantities of material is exposed, and a second position which the material from the mixer (7) arrives in a receiving device (13) and is rotatable about its axis. 2. "Device according to claim 1, characterized in that the measuring devices each have a measuring cylinder (2) with an opening (4) provided in their wall, which is connected to a measuring chamber (5) in the measuring cylinder (2) so that the cylinders (2) each between a position in which the opening (4) material for filling the measuring chamber (5) and a position in which the opening (4) enables the material discharge from the measuring chamber (5) to the mixer (7), can be rotated synchronously with the mixer (7). 409816/0908