SU1613379A1 - Method and apparatus for volumetric dosing of loose products - Google Patents

Abstract

The invention relates to methods and means for dispensing a material when packaged in a container. The purpose of the invention is to reduce material and energy costs and improve the accuracy of dosing due to the formation of a fluid wedge of a given density for a given product, which is distributed throughout the entire volume of the measuring container. The method of volumetric dosing of bulk products includes supplying the product to the measuring container in batches and compacting it in it by repeatedly pressing the portions until it is back out of it. The device contains a product feeder 1, a carousel 2 with measuring containers 3 made with open sections in the walls for entry of rollers 8 into them, the block of which, mounted on a common axis 9, is a product sealing mechanism in measured containers mounted on a carousel 2. The containers 3 are installed with the possibility of longitudinal movement relative to the axis of the roller block and have in the upper part a platform 15 for receiving excess product. The roller assembly includes a shield 17 mounted above the rollers to distribute the product in portions between the rollers and calibrate the ski 18 to prevent the product from exiting the volumetric capacity as it moves. 2 sp.f-ly, 4 Il.

Description

open areas in the walls for entry into the nickname of the rollers 8, the block of which, mounted on a common axis 9, is a product sealing mechanism in measuring containers mounted on the carousel 2. Capacities 3 are mounted with the possibility of longitudinal movement relative to the axis of the roller block and have in the upper part is a pad 15 for receiving excess product. The roller block includes shield 17 ,. mounted above the rollers to distribute the product in portions between the rollers, and calibrating the ski 18 to prevent the product from exiting the measuring container when it is moved. 2 sec. f-ly, 4 ill.

The invention relates to the field of packing, and in particular to methods and means of dispensing material during packaging in containers, and can be used | It is called in the chemical, medical and food industry.

The purpose of the invention is to reduce material and energy costs and improve the accuracy of dosing due to the formation of a fluid wedge of a given density for a given product, which is distributed throughout the entire volume of the measuring container.

By repeatedly pressing the working body, for example, with a hard stamp, roller, portions, product into measured capacity, for example, according to the law of harmonic oscillations, a extremely dense core, having the form of a half-wave (hemisphere), facing the stamp from the stamp is formed from the mass of the product; . The depth of the core distribution from the base to the top varies from 0.5 to 1.5 of the stamp width. Before the formation of a core for the entire depth, the mass of the product before the stamp remains motionless, and only after the formation of the core does the distinctly visible movement of the mass of the product from under the die to the free side over the entire volume of the measuring capacity begin. At the same time, the core under the stamp is not destroyed and does not lose density and uniformity up to. all its volume, although new portions of the product are continuously being pushed into it. The core works like a wedge, pushing the product mass to the side of the punch. Although in the core there is a mutual movement of particles, it retains a high density. That is. the phenomenon is characteristic only for a flowing fluid, therefore a wedge can be called a fluid wedge.

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The occurrence of a fluid wedge is characterized by leakage. (Squeezing) the self-compacting mass out from under the tool body over the entire width and thickness of the seal towards the unfilled part of the measuring container. This indicates that under the working body the product is brought to a fluid, extremely dense state over the entire depth of compaction, i.e. there was a flowing wedge effect.

Filling a predetermined volume of a measured capacity with a product of an extremely dense state allows one to obtain a dose of a product with any predetermined degree of accuracy and thereby save material and energy resources.

The installation in the device for volumetric dosing of bulk products coaxially with the carousel of the same rollers freely rotating on the axes with the possibility of moving relative to the open surface of the dead containers in the transverse direction allows the portion injection of the product into the measuring capacity to form a dense product core and a flowing wedge, with This corner panel above the rollers ensures the distribution of the product flow in portions between the rollers, and the installation, measuring containers with the possibility of longitudinal The movement of the wedge throughout the entire volume of the measuring container, while the safety gauge ski installed under the rollers prevents the product from being squeezed out, is opposed to the spreading of the flowing wedge.

FIG. 1 shows a bulk dosing device for bulk solids, general view; in fig. 2 is a section A-A in FIG. 1; Figure 3 shows a fragment with an external arrangement of a sealing mechanism; FIG. 4 shows the moment of extrusion of the product from the measuring container.

The method of volumetric dosing of bulk products includes supplying the product to the measuring tank, carried out in portions, and compacting the product in the measuring tank by repeatedly pressing portions of the product into it for back flow from it,

The method is carried out by a device which contains a product feeder 1, a carousel 2 arranged under it with measuring containers 3, a system of guides 4 and a copier 5, driving gears 6 and 7j a product sealing mechanism in measuring containers mounted on the carousel and made in the form of a block of rollers 8, mounted coaxially, by means of axis 9, with the carousel and with the possibility of rotation relative to it.

The product feeder 1 is mounted on a bowl 10 mounted on axis 9 and having glasses 11 with flaps 12 hingedly fixed on them. Rollers 8 are mounted on axles 13 with the possibility of free rotation.

Dimensional containers 3 are made with open areas in the walls for the rollers 8 to enter them and are mounted with the possibility of longitudinal movement along guide lines 4 relative to the axis of the roller block by interacting the rollers 14 installed on them from the bottom with copier 5, have a pad 15 for receiving excess product. . .

The rear wall of the measuring tank is made in the form of a pusher 16.

The roller block 8 includes an angled shield 17 mounted above the rollers under the bowl 10 opposite the glasses 113 to distribute the product between the rollers and calibrating the ski 18 fixed on the axis 9 under the rollers to prevent the product from leaving the measuring tank. moving.

The bowl 10 is equipped with a drive gear wheel 6 and is rigidly connected to the carousel 2 by means of a system of guides 4..

Driving gear wheel 7.z-fastened on the axis 9

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The device works the next way.

A drive (conventionally not shown in the drawings) through the gear wheel 6 is driven into rotation of the bowls 10 and carousel 2 ,. .-. i through the gear wheel 7 is driven into rotation the block of rollers 8 i

When rotating the bowl 10 product, 10

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In glasses T1, V. The loading area of the Mapi Mx of the containers 3 of the flap 12 of the stacked O.HOS 11 is opened, for example, by interacting with the copier, and the product enters the corner shield 17,

During the rotation of the carousel 2, the measuring capacitance 3, interacting with the cam 5 by means of the roller 14, moves the 1H control 4 upward into the zone of knowledge,; then, in the zone of delivery of the dosed product in the briquette 19, when entering the zone, the metering container 3 is located with the open side opposite the rollers 8. At this time, the product from the corner shield 17 is guided between the rollers 8 and the measuring capacity 3 with a layer that provides tightening under the roller 8 of all the particles of the product. Moving across the open wall of the measuring tank 3, the rollers 3 press portions of the product into it according to the law of harmonic oscillations. After a dense core 20 is formed under the roller 8, the portions of the product pressed into the core 20 are pushed out from under the poriiKa 8 into the free space of the measuring container 3. At this time, the measuring container 3, taken with the copier 5 by means of the roller 14, moves 4 down parallel to axis 9, and a dense core 20 flows upwards, while the calibrating plate 18 prevents the product from the measuring tank 3 from below from below. i

In the lower position, the measuring tank 3 exits from the interaction with the rollers 8 to the dose delivery area. .In this case, the excess product, extracted from measuring container 3 above. popg.tsa; from to the receiving site 15. This indicates that the measuring capacity of 3 is filled with the product in the whole volume and the density of the product is theoretically possible.

After entering the measuring tank 3 in the area of the dose, the valve 12 ove- |

covers the cup 11, and the pusher 16, interacting, for example., with horsehair, 1 pushes the product dose from the measuring tank 3 to the subsequent technological treatment. In this case, if the measuring containers 3 encompass the block of rollers 8, the briquette 19 is ejected inside the carousel 2, if the measured containers 3 are covered with the block of rollers 8 (see Fig. 3), then the ejection of the briquette 19 is produced 90 outside the carousel 2.

When switching to the dosing zone, the measuring tank 3 rises up, again is installed opposite the roll-Kov 8, the shutter 12 opens the cup 11, the product is fed to the corner shield 17, the cycle repeats.

Formula and 3 about b e e. T e n i

: 1. A method for volumetric dosing of free-flowing products, including the supply of b product. To measure the capacity and compaction of it in it, about tl and h a and y and i - With the fact that, in order to reduce material and energy costs and improve the accuracy of dosing due to the formation of a fluid wedge of a given density for a given product, throughout the entire volume of the measuring capacity, the product is supplied to the measuring capacity in batches, and

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compaction - repeated indentation of portions of the product into the measuring tank before returning from it.

2. A device for volumetric dosing of bulk products, containing a product feeder, a carousel placed underneath. With measured containers and a mechanism for compressing the product in them, which is such that, in order to reduce material and energy costs and increase the accuracy of dosing by forming the fluid wedge of a given density for this product, distributed throughout the entire volume of the measuring container, the sealing mechanism is mounted on the carousel and is made in the form of a block of rollers mounted coaxially with the carousel and with the possibility The rotations are relative to it, and the measuring containers are made with open sections in the walls for the rollers to enter them, are mounted with the possibility of longitudinal movement relative to the axis of the roller block and have in the upper part a platform for receiving excess product, with the roller block included. There is a shield mounted above the rollers to distribute the product in portions between the rollers, and a calibrating ski mounted under the rollers to prevent the product from exiting the measuring container when it moves.

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FIG.

Claims (2)

Claim 1. A method of volumetric dosing of bulk products, including feeding the product into a measuring container and sealing it therein, characterized in that, in order to reduce material and energy costs and increase the accuracy of dosing due to the formation of a fluid clip of a given density for this product, distributed throughout the volume of the measured capacity, the product is fed into the measured capacity by portion-wise compaction — by repeatedly pressing portions of the product into the measured capacity until it flows back from it. 2. A device for volumetric dosing of bulk products containing a product feeder, a carousel placed under it with measuring tanks. and the mechanism of compaction of the product in them, characterized in that, in order to reduce the material; energy costs and increasing the accuracy of dosing due to the formation of a fluid wedge of a given density for this product, distributed throughout the entire volume of the measured capacity, the sealing mechanism is mounted on the carousel and made in the form of a roller block mounted coaxially 2Q With a carousel and rotatable relative to it, and measuring tanks are made with open sections in the walls for the entrance of the rollers, mounted with the possibility of longitudinal movement relative to the axis of the roller block and have a platform in the upper part for receiving excess product, while the roller block includes includes a shield mounted above the rollers to distribute the product in portions between the rollers, and a calibrating ski mounted under the rollers to prevent the product from escaping from the measuring container when moving it