SU389911A1 - VIBROBUNKER - Google Patents

Description

The invention can be used in stamping and production, machine building, light industry and instrument engineering, as well as in other areas where supply of piece products (parts, blanks, forgings, etc.), interoperational transportation, as well as in the case of internal transport is required. with cooling of the supplied products and the workplace.

Vibrating hoppers are known, the bowls of which are provided with spiral jet trays.

In order to increase the lifting angle of irreducible parts in the proposed vibration bunker, the locks are made multi-rise with step-by-step increase in the angle of ascent to the optimum and with subsequent step-by-step reduction to 0 ° with the number of effective holes of the struts of the plate, each corner of the tray at each site, the plates directed in the direction of movement of parts of the node with an angle equal to one half of the angle of elevation of the tray at a given area. The tray side can be made up to a height higher than the maximum dimension of the mixed items and not lower than the height of the side jet plate. In addition, in order to create stable conditions for vibrating} transporting, the angle of action of vibrations is equal to the maximum angle of the tray bore.

FIG. 1 shows the described vibroboupker, general view; pas figs. 2 - the same, top view;

in fig. 3 is a section along L-.4 in FIG. 2; in fig. 4 - sweep tray; in fig. 5 is a diagram of the forces acting on the movable product.

The vibratory bunker consists of a core 1, electromagnetic vibrators 2, a bowl 3, with an angled multi-rake tray 4, a chamber 5 of overpressure, a jet niplastic 6, a port of channel 7, four air channels 8, channels 9, a sealing shell 10 n of a flexible slag yoke P.

Vibrating bunker works as follows.

At the bottom of the bowl 3, bulk materials are piled up in bulk. Under the action of oscillatory movements reported more often 3 by the vibrator 2, the products 12 move along the tray 4. The products 12 enter the par 4 tray unhindered, since in the initial intake part the angle U of the elevation of the tray does not exceed 4 °, and in each next section equal to 1 , 5-2.0 to the maximum length of the product to be interchanged, the angle and the elevation of the tray increase by 3-4 °, and when the optimum value is reached, the elevation angle decreases in the same order to 0 °. Non-displacement of products along such a helix in the vibration bin provides an additional lateral nneumatic effect, which allows to reduce or neutralize the opposing (rolling) gravitational force.

Provided R sin a, where R is the total pneumatic force, G is the weight force of the product (Fig. 5), we obtain the neutralization of the opposing component. At the same time, the components of the flow stream R sin y provide the best conditions for creating friction forces, which in turn make it possible to increase the angle a and the lift of the working tray.

The choice of the optimal angle of impact of additional pneumatic force, based on the provision of conditions for moving parts, equivalent to moving them along a horizontal plane, is made by the following dependencies:

 -4- G cos a - G and R cos - | - G sin a ---- O

Rsin

In such a case, the product moves at a speed equal to the speed of the product moving in a horizontal vibrating plane.

When choosing

R: 2GsinII

specified dynamic conditions are provided.

The number of effective openings of the jet plate is made depending on the angle of elevation of the tray in each section.

To avoid reverse vibrotransport, the angle of action of oscillations is equal to the maximum value of the angle of rise, c.-hrs of the working tray.

The operation of the vibro-hopper pneumatic system is carried out as follows.

Compressed air or air from a low or medium pressure fan is fed to the vibrating hopper through the hose 11, the inlet channel 7, where it is divided into four streams and enters the air ducts 8. From the channels 8, the air enters the channels 9 sealed by the shell 10, after bringing air into the overpressure chambers 5, from which it flows through the jet side plate 6.

Subject invention

Claims (3)

1. A vibratory bunker, the bowl of which is equipped with jet spiral trays, characterized in that, in order to increase the angle of lift of the parts being moved, the trays are made lifting with step-by-step increase of the elevation angle to the optimum and with subsequent reduction to 0 ° with the active holes of the jet plate The determined angle of elevation of the tray in each section, where the plates are directed towards the movement of parts at an angle equal to half the angle of elevation of the tray in this area. 2. A vibratory bunker according to Claim 1, characterized in that, in order to create stable vibro-transport conditions, the oscillation angle is equal to the maximum angle of the tray end. 3. Vibrating bunker according to claim 1, characterized in that the side of the tray is made in height above the maximum dimension of the articles being moved. and not lower than the height of the side jet plate. Site of entry for the campaign: Site for the output of products in PP ig.5 Rsln r GcoscA