SU1754197A1 - Vibratory dispersing mixer - Google Patents

Abstract

The invention relates to household appliances and can be used for mixing, dispersing and emulsifying liquid and bulk food products. The purpose of the invention is to intensify the mixing and increase the dispersion efficiency by creating a turbulent-circular motion of the processed medium. The vibromixer contains the working capacity and the body of the vibrodrive mounted on it, mixing elements immersed in the processed medium. New in the vibromixer is the execution of the vibrodrive in the form of two antiphase ferromagnetic rotors, elastically fixed on the axis at the opposite poles of the common core of the electromagnet, and also drawing out the mixing elements in the form of two pairs of flat torsion arms, buried in pairs on the ferromagnetic rotors and supplied at the bottom of the perforated blades, which are connected to each other by means of loops and longitudinal axes on the torsion arms, 1 h. n. f-ly, 3 ill. Yo

Description

The invention relates to household appliances and chemistry and can be used for carrying out processes of mixing, dispersing, emulsifying, and the like. heterogeneous and homogeneous foods.

Household mixers are known, which contain electric motors, which drive the mixing elements in the form of toothed disks, which are housed in a working container located above the electric motor.

The disadvantage of such mixers and dispersants is the complex and unreliable construction of their compact collector motors, which require special seals, drive shaft seals, which are included in the mixer working volume.

Vibrating mixers with special blades that perform reciprocating vibrations under the action of an electromagnetic vibrator are also known.

However, in such devices, the intensity of the circular motion of the medium is relatively small; therefore, the flow rate of various physicochemical processes in them is much lower than that of mixers and dispersants with electric motors.

The aim of the invention is to intensify the mixing process and increase the dispersion efficiency by creating a turbulent-circular motion of the processed medium.

This goal is achieved by the fact that the vibrodrive of angular oscillations is made in the form of ferromagnetic rotors, elastically fixed on a common axis and mutually displaced relative to each other to opposite poles of a common elec

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romagnita. At the same time, the mixing elements are made in the form of two pairs of flat torsion-like levers fixed in pairs on ferromagnetic rotors and equipped with perforated blades that are interconnected by loops with longitudinal axes located on opposite sides of the torsion levers. Comparative analysis with the prototype allows the conclusion that the inventive device differs in the design of the drive drive and the mixing elements.

FIG. 1 shows a longitudinal section of the mixer; in fig. 2 is a cross section at the level of an electromagnet; Fig, 3 is a cross-section of the mixing elements, enlarged two times.

The vibromixer-dispersant contains a working tank 1 with a liquid or bulk medium 2 to be processed and a plastic case mounted on it consisting of two identical halves 3 in which the base of the vibrodrive 4 is fixed, also consisting of two halves.

On this basis, 4 are installed a ferromagnetic core of an electromagnet 5 with windings 6, a rubber buffer limiter 7 and a common axis 8 of two ferromagnetic rotors 9, elastically fixed on this axis with the possibility of relative rotation with the help of the shroud 10 and the spring 11. The inner space of the vibromixer 3 casing Isolated from the working tank 1 by an elastic rubber membrane 12, through which torsion levers 13 pass, provided with perforated lobes 14 in the lower part and 10 ferromagnetic rotors rigidly fixed on the collars 9. erforirovannye semicircular openings with convex edges of the plane 14 are connected in pairs on opposite sides of loops with longitudinal axes 15 or flexible arcuate crosspiece 16, made for example of phosphor bronze and constant brazed to the leading edges of torsion arms 13 in their lower part.

Vibromixer works as follows. When the supply voltage of 50 Hz is applied, a magnetic flux occurs in the excitation winding of the electromagnet 6 in its core 5, which begins to attract the rotors 9 with the double frequency of 100 Hz. This frequency coincides with the frequency of mechanical resonance of oscillating systems formed by the moment of inertia of the rotors 9 with the elasticity of their return springs 11. Therefore, the rotors 9 begin to perform antiphase angular oscillations around the axis 8, since in the initial state

equilibrium, each of them is shifted to its pole of the core of the electromagnet 5 (Fig. 1).

Moreover, the maximum amplitude of these

oscillation is limited to 10-15 ° by rubber buffer-limiter 7. With the help of torsion levers 13, the angular oscillations of rotors 9 are converted into reciprocating oscillations of perforated blades 14, which are set by the elasticity of torsions 13 or bridges 15 in parallel to the axis 15. each other, and when moving backward it consumes at a certain angle ± y, due to the resistance of the medium 2 to be treated (Fig. 3). Due to the large difference in frontal resistance of the opened blades 14, when moving backward compared to moving forward, their reciprocating oscillations are transformed into an ordered movement of the treated medium 2 in two opposite directions, due to the opposite arrangement of the blades 14 and

5 with antiphase inclusion of rotors 9. Since the movement of these flows of the processed medium is limited by the walls of working tank 1, intensive circular movement of the processed medium 2 occurs in it, which additionally is turbulized by semicircular apertures on the surface of perforated planes 14. When processing granular media, for example, coffee , pepper and the like, sharp edges

5 of these holes are effectively dispersed, fray the particles of solid products, turning them into a powdered mass that can not be sprayed outside the working container 1, as it is tightly closed with a rubber membrane 12, pressed against the container 1 with a threaded connection of the housing 3. At the end of the treatment cycle The working container 1 is unscrewed from the housing 3. At the end of the processing cycle, the working capacitor 5 unscrews from the housing 3 and the processed medium 2 is removed, and the new batch is loaded and the cycle is repeated again.

Experimental studies of the actual sample of the proposed device, made on the basis of the Moscow electric razor vibrator, showed that in 3-4 minutes it provided high-quality preparation of various

5 cocktails, omelets, creams, as well as the crushing of bulk food products at the level of factory mixers with a drive of mixing elements from electric motors. Compared with the prototype and other vibratory mixers of similar purpose

The proposed device creates much less noise and vibrations due to the antiphase movement of the rotors of the vibrating drive and mixing elements, which provide high quality food preparation using a relatively simple and cheap design without the use of rather scarce electric motors and components hindering the wide distribution of this household appliance.

Claims (2)

Claim 1. Vibromixer-dispersant of hard and dry media, containing a working tank and a body mounted on it with a vibration drive, made in the form of an electromagnetic motor, mixing elements, characterized by that, in order to intensify the mixing process and increase the dispersion efficiency by creating a turbulent-circular motion of the processed medium, the vibrodrive is equipped with two ferromagnetic rotors, elastically fixed on the axis and mutually displaced to the opposite poles of the electromagnet, and the mixing elements are made in the form of two pairs of flat torsion levers fixed on ferromagnetic rotors and fitted in the lower part with perforated blades interconnected by means of loops and longitudinal axes. 2. The vibromixer disperser according to claim 1, wherein the perforated blades are interconnected by a flexible arcuate bridge. H n sh  J $ X V fzg.3 ъ /;