RU2582891C1 - Device for dispensing loose materials - Google Patents

Device for dispensing loose materials Download PDF

Info

Publication number
RU2582891C1
RU2582891C1 RU2015111121/28A RU2015111121A RU2582891C1 RU 2582891 C1 RU2582891 C1 RU 2582891C1 RU 2015111121/28 A RU2015111121/28 A RU 2015111121/28A RU 2015111121 A RU2015111121 A RU 2015111121A RU 2582891 C1 RU2582891 C1 RU 2582891C1
Authority
RU
Russia
Prior art keywords
disk
support
hopper
measuring
mounted
Prior art date
Application number
RU2015111121/28A
Other languages
Russian (ru)
Inventor
Николай Михайлович Варёных
Вадим Юрьевич Архангельский
Анатолий Дмитриевич Плюхов
Свен Виттинг
Лутц Хеллер
Вячеслав Александрович Подсобляев
Original Assignee
Вадим Юрьевич Архангельский
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Вадим Юрьевич Архангельский filed Critical Вадим Юрьевич Архангельский
Priority to RU2015111121/28A priority Critical patent/RU2582891C1/en
Application granted granted Critical
Publication of RU2582891C1 publication Critical patent/RU2582891C1/en

Links

Images

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00Apparatus requiring external operation and adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container without regard to weight and to deliver it

Abstract

FIELD: measuring equipment.
SUBSTANCE: invention relates to cyclic measurement of volumes of loose material doses, and more specifically to automatic batchers with external control for repeated measurement and dispensing of preset volume of loose material. Device for dispensing of loose materials contains conveying disk installed on drive vertical shaft equipped with measuring reservoirs distributed on periphery. Measuring reservoirs of transporting disk are made in form of group of replaceable precision bushings, serially installed in its circular working track, total volume of which corresponds to measured dose, and support is mounted with possibility of synchronous rotation, with friction clutch to conveying disk for positioning of slotted opening above additional discharge chute into detachable container, fixed on frame coaxially to outlet branch pipe of hopper, wherein support is equipped with closed two-position cam for separate kinematic closure with opposed rotation stoppers.
EFFECT: technical result is high accuracy of automatic dispensing of loose material.
2 cl, 4 dwg

Description

The invention relates to devices for cyclic measurement of volumes of bulk material in doses, and more particularly to automatic dispensers with external control for repeated measurement and delivery of predetermined volumes of bulk material, regardless of the method of its supply from the drive.

The level of this technical field is characterized by the bulk dispenser of bulk materials described in patent RU 2133944 C1, G01F 11/00; С06В 21/00, 1999, which contains a metering disk mounted on a vertical drive shaft with the possibility of rotation and provided with measuring holes, located along concentric circles, hoppers with metered compositions, motionless mounted above the mating measuring holes.

A feature of this device is the layered dosing of various materials in the technological capacity of compaction of a puff tablet.

In this case, the difference in the diameters of the two adjacent circles on which the measuring holes are located is greater than the sum of the diameters of the two largest measuring holes, and the minimum step between two adjacent holes on the circle is half the product of the diameter of the metering disk by the sum of the ratios of the diameters of these holes to the diameters of the circles on which they located.

Above each circle along which the measuring holes are located, there is only one hopper with a kind of bulk material, so the metering disk transports several different materials simultaneously in the measuring holes, from which they are successively poured into the receiving hopper of the tabletting machine, forming a layered semi-finished product, which is ensured by the optimization of geometric the ratio of the elements of the metering disc.

However, the disadvantage of the described high-performance volumetric dispenser is the unsatisfactory functional reliability due to the formation of arched arches of bulk material compacted during transportation along a rough sliding support, which freezes in measured containers and does not completely pour out into the process matrix.

In the case when the geometric parameters of the measured capacity are not optimized in the calculated ratio for the bulk material of certain particle size parameters and tribotechnical characteristics, then due to exceeding the maximum deformation of the material, a dynamic arch is formed in them, preventing the filling of the volume.

When a coherent bulk material moves in a measured container along a fixed support, a part of the transported material transitions to a limiting state, accompanied by its dynamic deformation that occurs along the slip lines, and its value depends on the frictional properties of the bulk material and the length of its contact line with the base, i.e. diameter of measured capacity.

In the process of filling the measuring tank in the hopper, there are three different areas of the dosed material, separated by break lines, the position of which affects its flowability into the measuring tank.

Two of them are stagnant (motionless) and limit the real cross-section of the region of the moving material into a measuring tank. One, motionless, lies behind the measuring tank relative to the direction of its movement and is in an active stressed state, and the other motionless region lies ahead of the measuring vessel relative to the direction of its movement and is in a passive stressed state, resulting from the friction forces of the material on the surface of the metering disk on retaining wall, which prevents its exit beyond the pipe.

In the process of filling the measured capacity, a region of material in the limiting state also appears in it, and the fracture lines are connected at the point of maximum deformation of the material in the measured capacity, passing into a slip line tangent to the fracture lines.

If the ratio of the height of the measured capacity to its diameter exceeds the value of the maximum deformation of the material in the ultimate state, then the fracture lines will intersect, which will lead to the formation of the arch and a decrease in the fill factor of the measured capacity.

The practical implementation of this multi-parameter technological task in mass production is difficult.

The noted drawback is eliminated in a more advanced device according to the patent RU 2227273 C2, G01F 11/00, 2004, which, according to the technical nature and the number of matching features, is selected as the closest analogue to the proposed device for dispensing bulk materials.

The known dispensing device comprises a hopper with a vertically movable outlet pipe adjacent by means of an open end to the working path of the dispensing disk, where the measuring containers are distributed - through calibrated holes.

The metering disk is mounted on a vertical drive shaft and is adjacent to the disk support in a plane in which an inclined through hole for unloading the dose of material is made.

Each measuring tank is equipped with an external flange, which is adjacent to the surface of the supporting disk.

A design feature is that the width of the discharge opening is less than the outer diameter of the shoulder and larger than the diameter of the measuring tank, and the ratio of the height of the measuring tank to its internal diameter is optimized in the range from 0.3 to 0.5, which guaranteed the functional reliability of the device as a whole , with a marked reduction in the loss of technological material.

A continuation of the advantages of the known dispensing device are the inherent disadvantages:

- a relatively large error of the measured volumetric dose of the material, which is loaded into the measured capacity;

- incomplete supply of a measured dose of bulk material through an inclined through slotted window of the overload in the supporting disk.

In addition, the change of the processed bulk material and its unloading from the hopper at the end of the shift is carried out manually with a scraper device from the gap formed when the nozzle is vertically displaced upward relative to the hopper, which is laborious, unsafe and involves large losses of pyrotechnic compositions.

Another disadvantage of the known device is its narrowly specialized use for dispensing bulk material with specific particle size characteristics and tribological properties. When switching to materials with other characteristics and properties, problems arise that are characteristic of the analogue described above: vault formation and unsatisfactory functioning as intended.

The technical problem to which the present invention is directed is the unification of a dispensing device suitable for a wide range of bulk materials, and increasing its functionality on the interoperational loading of metered doses of granular material measured with increased accuracy into the technological matrix of its tableting, with automatic finishing emptying of the hopper (or changing type of bulk material), which is aimed at full automation, virtually eliminating the loss of pyrotechnic compositions.

The required technical result is achieved by the fact that in the known device for dispensing bulk materials containing a transport disk mounted on a vertical drive shaft, provided with measuring containers distributed on the periphery, an annular working path which is located between the hopper outlet pipe and an adjacent support with a through slotted window inclined in metered dose discharge tray, according to the invention, measuring capacities of the transporting disk are made in the form of a group of interchangeable precision bushings to, sequentially installed in its annular working path, the total volume of which corresponds to the measured dose, and the support, the slit window of which is inclined at an angle exceeding the angle of repose of the dosed material, is mounted with the possibility of synchronous rotation with friction coupling with the transporting disk for positioning the slit window above an additional unloading tray in a removable container mounted on the bed coaxially with the hopper outlet pipe, while the support is equipped with a closed on-off cam com separate kinematic closure with diametrically located rotation stoppers.

Another feature of the dispensing device is that the overload disk stoppers placed in the adjacent support are made in the form of pneumatic cylinder rods diametrically fixed to the bed.

Distinctive features of the proposed technical solution have increased the accuracy of automatic dosing of bulk material and the expansion of technological capabilities according to the range of processed mixtures (for the manufacture of sorbents, drugs and biologically active preparations, filters, chemicals, etc.) during the operational readjustment of tool assemblies and the mechanism for the automatic emptying of dosing residues material from the hopper.

The implementation of the measuring capacities of the transporting disk in the form of a group of replaceable bushings of precision accuracy, sequentially installed in its annular working path, the total volume of which corresponds to the measured dose, reduces the error of the automatic filling of volumetric doses from the bulk raw material mixture to form pelletized products.

The inclination of the slit end-to-end overload window in the support at an angle exceeding the angle of repose of the processed bulk material ensures that the metering dose is delivered autonomously to the technological tool without the remainder of the meter, eliminating arching and material freezing during the overload operation.

The installation of the support of the transporting disk with the possibility of synchronous rotation in the friction clutch relative to the common axis allows, due to their clamping under the influence of friction clutch forces, the diametrical positioning of the overload slot window under the hopper nozzle for unloading through the additional tray adjacent to the bottom into the technological container.

Equipping the support with a closed two-position cam of separate kinematic closure with diametrically positioned stoppers is necessary for the exact positioning of the overload window above the tray for delivering measured doses to the tablet matrix and over the tray for unloading material residues from the hopper at the end of work.

The implementation of stoppers in the form of rods of pneumatic cylinders, as the most constructively simple and easily controlled mechanism, allows you to combine their functioning in the general system of automatic control of the duty cycle of a modernized device with advanced operating functions.

Therefore, each essential feature is necessary, and their combination is sufficient to achieve a novelty of quality that is not inherent in the signs of disunity, that is, the stated technical problem is solved in the invention not by the sum of the effects, but by a new super-effect of the sum of the features.

The essence of the proposed technical solution is illustrated by drawings, which have a purely illustrative purpose and do not limit the scope of the claims of the totality of the essential features of the formula.

The drawings show:

in FIG. 1 is a general view of a dispensing device, a vertical section;

in FIG. 2 is a view A in FIG. one;

in FIG. 3 is a section along BB in FIG. one;

in FIG. 4 is a section along BB in FIG. one.

In the frame 1, a central shaft 2 is mounted, carrying a transporting disk 3 fixed at the end and rigidly connected to the drive gear 4.

In the peripheral annular track of the transporting disk 3, measured tanks 5 are made for a measured dose of a loose pyrotechnic composition filling the hopper 6 with an outlet pipe 7.

The transporting disk 3 from the annular working path to the center of attachment at the end of the shaft 2 is made conical, that is, has a convex shape.

An annular peripheral track of the transporting disk 3 is placed between the outlet pipe 7 of the hopper 6 and the adjacent overload disk 8, equipped with a through slotted window 9, inclined toward the tray 10 for supplying measured doses of bulk raw material to the matrix unit 11 for tabletting them.

The angle of inclination of the slit window 9 exceeds the angle of repose of the metered bulk material and is at least 50 °, which prevents the formation of arches and its freezing, which is guaranteed to fall out of the tank 5 when combined with the window 9.

A feature of the dispenser according to the invention is that each measuring container 5 of the overload disk 8 can be made in the form of at least three precision bushings 12 sequentially fixed in its peripheral ring track (Fig. 4), the total volume of which corresponds to the dose of material measured for pressing a functional tablet in tank 5.

Each structural part of the measured dose in bushings 12, by definition, has a lower absolute error, therefore, taking into account the law of normal distribution, when forming the measured target dose from its structural parts of a smaller volume, the total error of a more accurate absolute value is averaged, i.e., the measured dose in in this case, more accurate than dosed in one container 5 of equal volume.

The overload disk 8 is made in the form of a rotary coil (Fig. 1), the lower flange 13 of which is equipped with an arc closed cam - a through groove 14 (Fig. 2 and 3), separately interacting respectively with the rods 15 and 16 of the pneumatic cylinders 17 and 18, mounted on the bed one.

In this case, the rods 15, 16 are placed respectively in the base through holes 19, 20 of the bracket 21 adjacent to the flange 13 and mounted on the frame 1, which creates an additional support for the rods 15 and 16, which compensates for bending loads when the flange 13 is locked against rotation.

Under the outlet pipe 7 of the hopper 6 on the frame 1, an additional discharge tray 22 is fixed in the removable technological container 23. The dispenser operates as follows.

In the initial position (Fig. 1, 2), the rod 15 of the pneumatic cylinder 17 is in its highest position and through the through hole 19 of the bracket 21 is closed in the groove 14 of the flange 13, excluding its rotation, and the rod 16 of the pneumatic cylinder 18 is in its lowest position, without interacting with a flange 13 (Fig. 3) and, therefore, with a transporting disk 8, the slit window 9 of which is stationary above the tray 10 directed into the matrix 11 (Fig. 1).

When the drive of the device is turned on, a container 5 or a group of bushings 12 of equal volume installed in the transporting disk 3 (Fig. 4) are installed by turning the central shaft 2 under the outlet pipe 7, from which bulk technological material fills their volume.

When turning the shaft 2 of the transporting disk 3, the measured dose of material filling the container 5 or sleeve 12 is cut off from the nozzle 7 and transferred to the diametric position of the dispenser, until the overload in the disk 8 is aligned with the slotted window 9.

In this case, the dose of material from the tank 5 or bushings 12 (sequentially) is poured into the tray 10, through which it is gravitationally fed into the matrix 11 in full, where it is compacted in the form of a functional tablet, and then instrumentally pushed into the receiver.

At the same time, at the loading position from the hopper 6, the diametrically placed measuring container 5 (sleeve 12) of the disk 3 is filled from the pipe 7 with a bulk process composition, and the cycle repeats.

It should be noted that in this case, the particles of the dosage composition that had previously woken up on the working annular path of the transporting disk 3 by the adjacent end of the nozzle 7 deviate from the motion path and are poured into the outlet tray 22 and accumulate in the technological container 23.

Upon completion of work or changing the type of material to be dosed, the metering drive is switched off, and the pneumatic cylinders 17 and 18 are switched, as a result of which, respectively, the rod 15 leaves the groove 14 and lowers to the lowermost position to the base hole 19 of the bracket 21, and the rod 16 rises to its highest position , mounted in an arc closed cam 14 of the flange 13, adjacent to its left end according to the drawing of FIG. 1 and 2.

Then the metering drive is turned on and the shaft 2 drives the disk 8, which is frictionally coupled with the transporting disk 3, synchronously rotates (the rod 16 moves along the cam 14 to the extreme right position in Fig. 3), while the slot overload window 9 is installed above the discharge tray 22, into which the remains of bulk material are poured out of the hopper 6 through the combined pipe 7, a measuring container 5 (sleeve 12) and a through window 9, accumulating in the packaging 23.

After removing residual material from the hopper 6, the technological container 23 is removed from the bed 1 and transported to an isolated room for storage.

If necessary, in the supporting disk 8, the container 5 is replaced with sleeves 12 (or vice versa), after which the dispenser is set to its original position and the hopper 6 is filled with a new mixture, which is dosed as described above.

Tests of the prototype of the proposed design of the dispensing device showed stable work in separating from the array of the prepared technological mixture in the measuring hopper hopper with a given accuracy in volume, which are automatically completely overloaded through the slotted inclined window of the support disk into the tablet compaction matrix.

Comparison of the proposed technical solution with the closest prior art analogues did not reveal an identical match of the totality of the essential features of the invention.

The proposed differences of the device for dispensing bulk materials are not obvious to a technician who does not directly follow from the statement of the technical problem.

The proposed dosing device can be manufactured at the existing machine-building production, equipping customers with automated unified bulk materials dispensers.

From the foregoing, we can conclude that the invention meets the conditions of patentability.

Claims (2)

1. A device for dispensing bulk materials containing a transport disk mounted on a vertical drive shaft, provided with measuring containers distributed on the periphery, an annular working path of which is located between the hopper outlet pipe and an adjacent support with a through slotted window inclined into the metered dose discharge tray, characterized in that the measuring tanks are made in the form of a group of interchangeable precision bushings sequentially installed in the annular working path of the transporting disk, with the total volume of which corresponds to the measured dose, and the support, the slit window of which is inclined at an angle greater than the angle of repose of the dosed material, is mounted with the possibility of synchronous rotation with friction coupling with the transporting disk to position the slot window above the additional discharge tray in a removable container mounted on a bed coaxial to the outlet pipe of the hopper, while the support is equipped with a closed on-off cam of a separate kinematic circuit with a diametrically located nnym stops turning.
2. The device according to p. 1, characterized in that the stoppers of the transporting disk, placed in an adjacent support, are made in the form of rods of pneumatic cylinders diametrically mounted on a bed.
RU2015111121/28A 2015-03-30 2015-03-30 Device for dispensing loose materials RU2582891C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2015111121/28A RU2582891C1 (en) 2015-03-30 2015-03-30 Device for dispensing loose materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2015111121/28A RU2582891C1 (en) 2015-03-30 2015-03-30 Device for dispensing loose materials

Publications (1)

Publication Number Publication Date
RU2582891C1 true RU2582891C1 (en) 2016-04-27

Family

ID=55794733

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2015111121/28A RU2582891C1 (en) 2015-03-30 2015-03-30 Device for dispensing loose materials

Country Status (1)

Country Link
RU (1) RU2582891C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU196033U1 (en) * 2019-12-03 2020-02-13 Вячеслав Владимирович СКИБЮК Air gun for volumetric metering unit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2227273C2 (en) * 2001-12-11 2004-04-20 Федеральное государственное унитарное предприятие научно-производственный центр "Научно-исследовательский институт прикладной химии" Device for proportioning pyrotechnic compounds
RU2319112C2 (en) * 2006-04-04 2008-03-10 Общество с ограниченной ответственностью "Завод керамзитового гравия-ЖБК-1" Device for batching loose material
US8579166B2 (en) * 2008-05-29 2013-11-12 Nestec S.A. Device for dosing a metered amount of a powdered product and beverage machine using such a device
RU2533366C1 (en) * 2013-05-31 2014-11-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ставропольский государственный аграрный университет" Dosing device for bulk materials

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2227273C2 (en) * 2001-12-11 2004-04-20 Федеральное государственное унитарное предприятие научно-производственный центр "Научно-исследовательский институт прикладной химии" Device for proportioning pyrotechnic compounds
RU2319112C2 (en) * 2006-04-04 2008-03-10 Общество с ограниченной ответственностью "Завод керамзитового гравия-ЖБК-1" Device for batching loose material
US8579166B2 (en) * 2008-05-29 2013-11-12 Nestec S.A. Device for dosing a metered amount of a powdered product and beverage machine using such a device
RU2533366C1 (en) * 2013-05-31 2014-11-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ставропольский государственный аграрный университет" Dosing device for bulk materials

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU196033U1 (en) * 2019-12-03 2020-02-13 Вячеслав Владимирович СКИБЮК Air gun for volumetric metering unit

Similar Documents

Publication Publication Date Title
EP2344270B1 (en) Method and apparatus for metering, mixing and packaging solid particulate material
US7614429B2 (en) Apparatus and methods for storing and dispensing solid material
CN102046052B (en) Device for dosing metered amount of powdered product and beverage machine using such a device
KR920001892B1 (en) Food apparatus
US2161190A (en) Apparatus for measuring charges of powdered and granular materials
US7922043B2 (en) Dosage-dispensing device for substances in powder- or paste form
EP1556671B1 (en) Apparatus for accurate powder metering
US3656518A (en) Method and apparatus for measuring and dispensing predetermined equal amounts of powdered material
EP1698553B1 (en) Device and procedure for filling bags with food
US5651401A (en) Apparatus for filling receptacles
KR0143227B1 (en) Device and process for monitoring material flow, and use of the process
EP1308099A2 (en) Method and device for preparing a layer of coating material, and coating device
US4785976A (en) Dispenser for fluent materials
JP2005525174A (en) Capsule filling equipment
US9873532B2 (en) Method, apparatus, and machine for filling bags with a metered quantity of bulk material
AU2011347477B2 (en) System of a container for storing and dispensing a product and a machine for dosing the product
CN105966938B (en) A kind of mechanism and its method conveyed using piston
US6612347B2 (en) Apparatus for metering and packaging bulk particulate material
KR100503401B1 (en) Device for measuring volumes of small amounts of products and for filling the same in receptacles
EP1982686B1 (en) Machine and method for filling capsules
US6595249B2 (en) Machine for filling capsules with a powdered product
EP3117894A1 (en) Powdery material mixing and feeding device and compression molding machine including the same
JP4388472B2 (en) Method and apparatus for metering and introducing material into a dough mixer
CN101166956B (en) Dosing device for powdery or pasty substances
FR2824315A1 (en) Powder feeding device