SU1382744A1 - Apparatus for metering loose materials - Google Patents

Abstract

The invention relates to volumetric dosing devices for packaging. The purpose of the invention is to improve the accuracy of dosing of volatile materials by stabilizing the density of the material in the measuring container. Placing the plate 4 in the zone of entry of the material into the measuring capacity 8, which cuts off the layer of material and at the same time compacts it, allows the bulk material to be transferred to the container 8 of constant density, which increases the accuracy of volumetric dosing. 2 Il.

Description

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This invention relates to packaging tech- nology and is intended to divide bulk materials into doses of a specific mass in a volumetric manner.

The purpose of the invention is to improve the accuracy of dosing of bulk materials by stabilizing the density of the material in the measuring container.

The formation in the receiving chamber of the mass mass dose stabilization zone of the bulk material, in which uniform and constant compaction of the material occurs, allows material of a constant density to be moved into a measuring container.

Fig, shows a device, a longitudinal section; figure 2 - section aa in figure 1

The device contains a hopper 1, a receiving chamber 2 with a cutter 3 and a plate 4 located in it. In the stationary outer ring 5 with a hole 6 there is an inner movable ring 7 with a measuring capacity 8. The ring 7 is seated on the shaft 9, which is located in bearings 10. On the shaft 9 is a slave 1SHSIV 11 drive (not shown). One end of the plate 4 is hingedly mounted on the slam-shutter 3, and the other end interacts with a pull 12 fixed on the finger 13 of the axis 14 of the inner ring 7. The position of the axis 14 is defined by the handle 15.

The device works as follows.

The flowing material from the hopper I enters the receiving chamber 2, is discarded under the action of centrifugal forces when the shaft 9 rotates with the ring 7, resulting in a bulk material enters the measuring capacity 8. After filling the measuring capacity with the flowing material, it condenses in it, The measuring container passes under the plate 4. During the passage of a portion of the material of this area, a constant layer of loose material remains above the measuring container, one end of which is

The rial that supplies the dimensional stick is pivotally fixed on the slam shutter,

bone loose particles on the axis of the inner ring

constant density. During the pro-eccentric fixed ha ha

walking the measuring container under the cutoff — the bulk material is connected to the other end of the plate 3 through the bore.

Tie 6 is unloaded. Further, the dosing cycle is repeated.

The presence of plate 4 allows the layer of bulk material to be organized so that it exerts a constant pressure on the layers of bulk material in the measuring container. By changing the bulk density of the bulk material, it is possible to adjust the dispenser to provide a given dose mass. To this end, when turning the knob 15 installed on the axis 14, the finger 13 through the tug 12 moves the end of the plate 4,

which allows the movement of the ring 7 to form a layer of a certain thickness. As the layer of bulk material increases, the force on the layers of bulk material into the container increases,

which leads to an increase in the particle packing density and, as a result, to an increase in the dose mass.

If the radius of the movable end of the plate is less than the radius

point of the hinge suspension of its fixed end, then there is an additional force on the bulk material in the measuring vessel, which ensures a higher density

dose and, as a result, increases the accuracy of dosing. Such adjustment is complementary to the coarse one performed by changing the volume of the measuring containers.

Claims (1)

Invention Formula A device for metering bulk materials, including a feed hopper, a receiving chamber with a shut-off device and placed coaxially it has two rings - an inner one, mounted on an axis with the possibility of rotation and containing a measuring container in the side wall, and an outer, fixed, containing in the side wall A hole in the hole, so that, in order to maintain the accuracy of dosing by stabilizing the density of the material in the measuring tank, the receiving chamber provides FIG. 2