SU730619A1 - Apparatus for metering-out loose materials - Google Patents

Description

Union of Soviet Socialist

Republics

State Committee

USSR for inventions and discoveries

DESCRIPTION OF THE INVENTION

TO AUTHOR'S CERTIFICATE (61) Additional to author. certificate-wu— (22) It is declared 09/21/78 (21) 2666255 / 28-13 with the addition of application No. - (23) Priority - (43) Published on 04/30/80. Bulletin No. 16 (45) Date of publication of the description 30.04.80 (p) 730619

(51) A1. Cl. ² V 65 V 1/14 (53) UDC 621.798 (088.8)

(72) Authors inventions I.R.Dudarev, V.N. Petrov, V.F. Petko and O.V. Kashchei (71) Applicant Odessa Technological Institute of Food Industry M.V. Lomonosova

(54) DEVICE FOR DOSING OF BULK MATERIALS

The invention relates to a technique for packaging bulk materials and is intended to ensure their division into doses of a certain mass using the volumetric dosing method.

A device for dispensing bulk materials is known, comprising a hopper, three concentric rings located under it with openings on the side surface, of which two internal are mounted with the possibility of rotation [1], and the external one is fixed.

However, in this device, to increase the centrifugal β-forces, it is necessary to increase the number of revolutions of the inner ring, which leads to a decrease in the residence time of the granular product in the field of the centrifugal forces, and a decrease in time leads to a decrease in the dosing accuracy.

The aim of the invention is to increase the accuracy of dosing.

This goal is achieved by the fact that the outer ring is mounted with the possibility of vertical reciprocating movement along its central axis.

The drawing shows the proposed device for dispensing bulk materials, a vertical section.

The device comprises a loading hopper 1, a chamber 2, concentric rings 3-5, located under the hopper 1. Rings 3 and 4 mounted on the shaft 6. The rings 3-5 ⁵ 7-9 openings respectively. Ring 5 is installed with the possibility of vertical reciprocating movement along the guides 10 and through the rod 11 is connected with an electromagnet 12.

A gear wheel 13 is mounted on the shaft 6, connected through the gears 14-16 with the ring 4. The shaft 6 is installed in the bearings 17 in the housing 18, and a drive gear 19 is mounted on it.

The device works as follows.

From the hopper 1, the loose-material enters the chamber 2 under the influence of gravitational forces, through the gear-wheel 19, the rotation from the engine (not shown in the drawing) is transmitted to the shaft 6 with a ring-m 3. Under the influence of the centrifugal forces, the bulk material located in the chamber 2 is discarded to its -external walls and enters the hole 7, forming a storage tank. In the future, when the rings 3 and 4 rotate due to the inequality of their angular velocities under the influence of centrifugal forces, the material enters the hole 8, which forms a measuring tank. Ring 4 with a hole. Makes a few revolutions around its axis. During this time, material is transferred several times from the storage tank to the measured tank.

After a certain number of revolutions 1 ° of the ring 4, the electromagnet 12 is turned on, and the rod And moves the ring 5 along the guides 10, resulting in bulk material from the measuring tank under the influence of centrifugal forces. Flies out through the outlet 15 hole 9 in the ring 5. After unloading the electromagnet turns off, and then the entire dosing cycle is repeated.

The increased residence time of the bulk material under the influence of centrifugal forces leads to an increase in the density of the bulk material and, consequently, to an increase in the metering accuracy.

The calculated economic effect is 7.988 thousand rubles. per year from the introduction of an automatic machine with the proposed dispenser when packing bulk products. into polyethylene tape with a capacity of P _t = 100 doses! min.

Claims (1)

Claim A device for dispensing bulk materials containing a hopper, three concentric rings located under it with holes on the side surface, of which two inner rings are mounted rotatably, characterized in that, in order to increase the accuracy of dispensing, the outer ring is mounted for reciprocating movement along its central axis. Source of information taken into account during the examination: 1. USSR copyright certificate No. 603605, cl. B 65 B 1/14, 1976. /? Compiled by E. Bokova Editor N. Khublarova Tehred V. Seryakova Proofreader S. Fine Order 368/588 Pub. № 269 Circulation 914 Subscribed NPO Search, USSR State Committee for Inventions and Discoveries 113035, Moscow, Zh-35, Raushskaya nab., 4/5 A type. Kharkiv. Phil. before "Patent"