SU1546125A1 - Mixer for viscous materials - Google Patents

Abstract

BACKGROUND OF THE INVENTION The invention relates to mixers and allows for improved work efficiency when mixing highly viscous materials. The mixer contains a cylindrical mixing chamber 1 with a lid 2 and placed in the chamber 1 with the possibility of axial reciprocating movement and rotation relative to the last mixing body. The mixing body is made in the form of a perforated piston 4 fixed on the rod 3. Between the chamber lid and the piston, an ejector body is arranged adjacent to the latter in the form of a perforated disk 7, the holes of which coincide with the holes of the piston. The ejector body is provided with a hub 8, which covers the stem and is movably located in the chamber lid, in which a latch 11 is installed on the outside of the chamber. The mixing body is equipped with a driver for its oscillations along the chamber axis made in the form of an axial movement of the electromagnet 13 and the core 14 connected. connected to the rod and connected to the drive of axial movement by means of elastic elements. 3 il.

Description

The invention relates to process equipment for the preparation of viscous materials, in particular pastes, produced by mixing the starting components.

The aim of the invention is to increase the work efficiency when mixing highly viscous materials.

FIG. 1 shows the proposed mixer, cut; in fig. 2 is a view of L in FIG. 1 (during the mixing of the mixture components); in fig. 3 - the same, during the unloading of the finished mixture from the chamber of the device.

The mixer for viscous materials contains a cylindrical mixing chamber 1 mounted on a frame 1 with a lid 2 on its end. The cavity of the chamber 1 is placed with the possibility of axial reciprocating movement and rotation relative to the last mixing body in the form of a perforated piston 4 fixed on the rod 3. The diameter of the piston 4 is equal to the internal diameter of the cavity of the chamber 1. Axial reciprocating movement of the piston 4 with the rod 3 provides the drive 5 in the form of, for example, a pneumatic cylinder, and their rotation is a drive 6, kinematically connected with the rod 3. In the chamber 1, between the cover 2 and the piston 4, an ejector body is mounted in the form of a perforated of the suit 7 with the hub 8. The disk 7 is mounted on the rod 3 with the possibility of rotation relative to the latter and the piston 4, and also tightly adjoins the end of the piston 4 with its end face. At the same time, the holes (perforations) 9 of the disk 7 are made so that The positions of the disk 7 relative to the piston 4 coincide with the holes with the perforations 10 of the piston 4. The hub 8 of the disk 7 encloses the rod 3 and is movably mounted in the cover 2. In addition, in the hub 8, on the outside of the chamber 1, a latch 11 is installed that interacts with the rod 3 and ensuring the fixation of the disc 7 no piston

4 with a rod 3 from their movements relative to each other. At the end of the stem 3, from the drive side 5, a pathogen 12 of oscillation of the mixing organ is mounted, i.e. the rod 3 with the piston 4, relative to the camera 1. The vibrations of the vibration exciter and, therefore, the mixing body are directed along the axis of the camera 1, i.e. along the reciprocating movement of the piston 4 in the cavity of the chamber 1. Vibro-exciter 12 connects the end of the rod 3 with the actuator stem 5 and is made in the form attached to the actuator stem 5 of the electromagnet 13, acting with its variable (pulsating) magnetic field connected to the stem 3 Measles 14, which are connected by means of elastic elements — springs 15 and 16 — to the drive rod 5.

The proposed mixer works as follows.

The mixing piston 4 with the rod 3 together with the ejector disk 7 is shifted in the cavity of the chamber 1 to the extreme position in the direction of the lid 2. Through the loading window 17, the components to be mixed are loaded into the cavity of the chamber 1. The window 18 for unloading is closed. The disk 7 is mounted on the rod 3 so that its holes 9 coincide with the holes 10 of the piston 4, after the disk 7 with the hub 8 is fixed relative to the piston 4 and the rod 3 by means of the latch 11. Then close the window 17 and turn on the actuators 5 and 6, and also pathogen 12 vibrations. The piston 4 under the action of actuators 5 g, 6 performs reciprocating and rotational movements relative to chamber 1 and the mass loaded in its cavity, and its holes 10 describe a complex helical path along the entire volume of chamber cavity 1. Under the influence of (electromagnet 13 exciter 12 oscillations piston 4 is perturbed and oscillates toward

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the mixed mass of components in the cavity of the chamber 1. The piston's vibration is transmitted to the materials being mixed. Under the action of vibration, the fluidity and mobility of the materials being mixed increase, and they seem to liquefy. As a result, previously viscous materials freely flow through the holes 10 of the piston under the influence of the latter and intensively, reliably and efficiently mixed throughout the entire volume of the cavity of chamber 1. At the same time, the energy consumption for such mixing of materials is much less than for similar mixing without vibrating them. hand mixing body.

To unload the prepared mixture from the initial components from the cavity of chamber 1, the piston 4 with the disk 7 is moved to their extreme position in the direction of the cover 2. The disk 7 with the hub 8 is fixed, releasing the retainer 11 from its interaction with the rod 3, and is set in this position in which the holes 9 and 10 do not match

are, i.e. the disk 7 blocks the holes 10 of the piston 4. After that, the disk 7 with the clamp 8 by means of the clamp 11 is re-locked against the piston 4 with the rod 3. Next, open the window 18 to unload the ready-mix from chamber 1 and turn on the actuator 5 for axial movement of the piston 4 in the cavity of the chamber 1. A piston 4 is injected with hermetically closed openings 10; the mixture is removed through a window 18 from the cavity of the chamber 1 of the device for its further use. At the end of the stroke of the piston 4 in the direction of the window 18 by means of the latch 11, the disc 7 is unfixed with the hub 8 relative to the piston 4 with the rod 3 and their rotation relative to each other aligns the holes 9 and 10. After this, the disk 7 is again fixed by means of the latch 11 relative to the piston 4 from their possible mutual movement and through the window 17 is supplied under pressure, for example, air. Compressed air rushes out of the cavity of the chamber 1 through the holes 9 and 10 towards the window 18 and, at the same time, displaces the remnants of the prepared mixture from the cavities of these holes into the gap between the end of the piston 4 and the wall of the chamber 1 from the side of its window 18 and further through the window 18 to the outside camera 1, cleans them of possible residues

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cooked pasta mixture. Thus, the mixer chamber 1 is completely free of the prepared mixture.

The use of the proposed mixer, in which the mixing body is equipped with its oscillator with the directionality of the latter along the axis of movement in the mixing piston chamber, allows, in comparison with the prototype, to increase the fluidity of the mixed materials in the process of their mutual mixing, reduce the energy consumption for mixing, increase the reliability and quality of mixing of the components and the resulting product is a mixture. This provides the possibility of preparing high-quality homogeneous mixtures from different components with different consistency and viscosity, which, in comparison with the prototype, expands the technological capabilities of the proposed device and its scope.

In the proposed mixer, the execution of an ejector perforated disk with a hub covering the stem of the mixing body and movably installed in the chamber lid, as well as the placement of a latch that interacts with the stem in the disk hub on the outside of the chamber, simplifies the design, maintenance and operation, as well as improve the reliability of the proposed device.

The proposed mixer for viscous materials can find application in the chemical, rubber, medical, tire, electronic and other industries of the national economy associated with the preparation and use of multicomponent viscous mixtures in the form of pas. Thus, in the electronic industry, the proposed The device can be used to obtain, for example, wet pastes prepared on the basis of powdered low-melting solder and ointment binder consistency of vaseline, using can be used to provide thick-film technology in the manufacture of multilayer boards.

Claims (1)

Invention Formula Mixer for viscous materials, containing a cylindrical mixing chamber with a lid, placed in the chamber with the possibility of axial reciprocating movement and rotation relative to the latter, the mixing body in the form of a perforated piston fixed to the rod, located between the chamber lid and the piston with the possibility of adjoining the latter and mounted on the rod a perforated disk, the holes of which coincide with the holes of the piston, rotational and axial displacement drives interacting with a rod a clamp, I differ - I In order to increase the work efficiency when mixing highly viscous materials, the ejector body is equipped with a hub embracing the stem and movably located in the chamber lid, in which a clamp is installed on the outside of the chamber, and the stirring body is equipped with an exciter along the axis the camera, made in the form of an axial movement of an electromagnet connected to the drive and a core mounted on the rod and connected to the drive of an axial movement by means of elastic elements. Type A ten 2 Fig.Z