SU71886A1 - Scales for hanging bulk materials - Google Patents

Description

The proposed scales are intended for hanging bulk materials, such as metal-ceramic mixtures.

. FIG. 1, 2 and 3 shows the proposed scales.

The bed 7 of the scale has four main racks, fitted at the bottom with screw supports 2, terminated with rubber liners.

On all sides of the frame is closed fences 3. On the lower platform of the scale is placed an electric motor 4 With an magnetic starter 5 autotransformer 6 and rectifier 7.

The relay box and the electromagnet of the single turn coupling 9 are installed in the interval between the first and second platforms. On the second platform, the shaft 10 of the carousel is mounted, which serves as a support for the fourth platform-disk 77, on which the actuating mechanisms 72 are mounted, mounted on a common removable plate 74.

The third platform is occupied by pads with three pairs of contact brushes 73, which serve to check the presence of cups in the carousel sockets when they approach the mechanisms 72.

A disk 75 is also installed on the disk 77 (with spare pieces, weights, keys, and other accessories for servicing the machine).

In the upper part of the bed, vibration feeders 76 and an electric lamp illuminating the carousel and chutes are mounted on rubber pads.

Each of the three feeders consists of an electromagnetic vibrator 77 (FIG. 2), a diverter 78 feeding the mixture into the gear of mechanisms 72 and a hopper 79 for the mixture.

As the current passes through the winding of the vibrator, the chute 78 reinforced on its upper table begins to vibrate, and the mixture contained in it acquires fluidity and flows into the thicker set on the plate of the mechanism 72.

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The upper edge of the chute is connected by a rubber cuff 20 to a hopper 79, from which the chute is replenished with the mixture.

In the upper part of the chute, there are three elastic plate springs 27, which are in contact with the walls of the outlet neck of the bunker.

The magnitude of the jet of the mixture flowing from the chute is adjusted depending on the set capacity of the feeder by the gate 22 mounted on the outlet of the chute.

The gate is driven by a screw 23.

The chute vibrator is suspended from the flange of the hopper on shock absorbers 24 (Fig. 3) with rubber liners that are designed so that the vibration is not transmitted to the bunker and to the frame of the machine. The flange of the bunker, in turn, rests on the frame through rubber pads 25.

The feeders are placed in a semicircle around the carousel and serve the mixture simultaneously in three cups placed by the carousel on the weighing plates of the mechanisms.

The first and second feeders differ from each other only in the capacity of the bins, respectively, of a given capacity. The third feeder, designed for precise filling of the mixture to a predetermined hitch, has a small hopper and chute separated by a diaphragm 26 and two partitions with successively decreasing outlet openings and an outlet gate.

The middle of these partitions 27 can move freely up and down and is provided with teeth in the lower part. This movable (floating) partition vibrates with respect to heat and breaks the lumps of the mixture with its teeth.

All chutes are equipped with discharge pipes 28, which are directed downwards and are used to quickly empty feeders in case of need to clean bunkers and chutes. During normal operation, the nozzles are closed inserted into them.

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rubber plugs, and when the mixture is discharged through them, specially designed tailpipes are attached to them, which guide the mixture into the tanks placed at the bottom.

The main part of the weighing mechanisms is the beam 29 (Fig. I), on one arm of which the plate 30 is mounted on the prism, and on the other is the nut-counterweight 3J, by. which regulates the weight of the sample.

The cups 32, into which the mixture is to be poured, are placed in the sockets 33 of the carousel. The carousel, turning, brings the cups to the appropriate mechanisms, and going down, puts them on the appropriate plates.

After the cup has been placed on the scale plate, the mixture is poured into it.

When the amount of the mixture is preset by adjusting the counterweight to the cup, the balance arm tilts toward the cup with the mixture. In this case, the contact rod 34, fastened on the yoke, touches the contact plate 35 installed on the mechanism case and thus closes the circuit of the weighing relay (not shown in the drawing).

Carousel is made in the form of a disk.

36 with a long hollow sleeve 37, worn on the shaft 10.

The hub 37 rests on the sleeve 38, which is wrapped around the cheeks 39 of the lifting mechanism. Using this mechanism, which operates from eccentrics on the working roller, the coupling 38, and with it the entire carousel, at certain moments, rises up and down. On the sleeve

37 carousel reinforced pinwheel 40 with vertically located rollers or bobbins 41.

These rollers are engaged with the scroll 8 of the working roller. When the working roller is rotated, the cochlea 8 either fixes the position of the rollers, not allowing the carousel to turn during the course up and down, or turns the entire carousel one step. This turn is made when the carousel is in

extreme up position, i.e. when the cups are lifted and removed from the balance plates.

On the main disk of the carousel there are hollow (tubular) posts 42, holding the upper ring 43 of the carousel.

The sockets 33 of the ring 43 are bordered with steel collars into which the cups are inserted. Each collar is cut vertically into two parts that are electrically isolated from each other, it is closed, and the cup 32 inserted into the socket of the carousel.

From each section of the collars goes down the insulated wire, passed through one of the racks 42, on which the upper ring of the carousel is fixed. These wires pass through the holes in the main disk to a textolite slip ring 44 reinforced under the disk 36.

There are radially located contact bolts 45 in this ring.

When turning the carousel, the TZ brushes, located on the third platform against the contact ring, come into contact with these contactors.

The brushes and contacts are used to automatically control the cups in the carousel sockets.

Subject invention

Claims (3)

1. Scales for hanging bulk materials with a lifting and revolving table (carousel) transporting the cup to the successive weighing mechanisms, and several, according to the number of these mechanisms, feeders equipped with electromagnetic vibrators, controlled by means of a relay system, characterized by the last of the feeders, designed to accurately fill the material to a given hinge, in order to feed the material into the cup with a thin and uniform stream, is equipped with a diaphragm 26 and by one, a partition 27 installed in the guides, having teeth on the lower edge. 2. The device according to claim 1, which is used to automatically control the presence of the cup in the table sockets of semi-ring contacts installed in the sockets and closed by the body of the cup when it is installed in the socket. 3. In the device according to claim 1, the use of the pinch disk 40 and the cochlea 8 interacting with it, which serves both to rotate the table shaft and to fix it during the lifting period and during stops. (3 "Lee FIG. one FIG. 2 fE2 KUUU - X XXH I-I VVVVWWV4VV YY-1 1,4, -H-J 25 I. t., i, j.,