RU2230010C2 - Loose products metering device - Google Patents

Abstract

FIELD: food industry. SUBSTANCE: invention can be used for metering out flour in macaronis production. Proposed device contains hermetically sealed charging hopper with branch pipe for delivering loose products, housing butt-joined with hopper with rotation shaft installed along axis of housing, vacuum system and two parallel tightly adjoining horizontal disks. Lower fixed disk provided with hole is rigidly secured in base of charging hopper, and upper disk, in which at least one hole is made, is rigidly connected with rotation shaft, all holes in disks being of equal diameter and equidistant from axis. Shaft is provided with clutch on which cam is mounted for engagement with limit switch to preclude registering of disk holes when device has stopped. L-shaped channel is made in housing one end of which is connected with hole in lower disks and other end is connected with filler branch pipe connected with intake container made hermetically sealed and furnished with level transmitter. Loose product delivery branch pipe communicates with sieving device inside which atmospheric pressure is maintained. EFFECT: increased accuracy of metering out, provision of high reliability and facilitated servicing of device. 1 dwg

Description

A device for dispensing bulk products is used in the food industry, specifically for dispensing flour in pasta production. The proposed device for dispensing bulk products is used in lines for the production of pasta using vacuum at all stages of the production of pasta. It can also find application in the food industry, where dosing of bulk components is necessary.

Known dispenser MD-100. This dispenser consists of a storage hopper for receiving flour mounted on the apparatus, the supply of which is carried out using the elevator from the flour sifter. The main mechanisms by which dosing is carried out are the auger for feeding flour and the lever mechanism. Dosing of components is carried out due to the mechanism of the scales, the supply of which is carried out using a screw, which in turn is driven by the engine. The electronic dosing system package includes the actual remote control unit, located in the immediate vicinity of the operator’s workplace, having control buttons and a strain gauge mounted in the draft of the balance. The main element of the batching system is an electronic unit that controls the batching process, including, upon command, a flour feed screw. According to the signal, by pressing the "Enter" button located on the front side of the electronic unit, he sends a signal to the magnetic starter, which, in turn, turns on the screw motor, and when it reaches the set mass, turns it off. The system provides for emergency cessation of dosing. There is also a mode switch that allows you to instantly restore the old weighing system of the metering meter, i.e. using the lever mechanism [1].

This dispenser provides for the dosing of flour by setting the doses of the electronic dosing system kit, which includes an electronic-digital unit, a remote control unit, a strain gauge mounted in the draft of the balance. This entire complex has a complex structure, which requires additional skills from the maintenance staff and the accuracy of the equipment settings.

Closest to the claimed invention is a dispenser for the portioned supply of bulk products, prone to freezing and the formation of arches during their packaging. The dispenser has a vertical machine for packaging and packaging products in packages of thermoplastic artificial film, over which there is a filling pipe for receiving bulk products, in which there is a level indicator for the product that has previously passed through the sifter, for cleaning from unnecessary impurities. Product is fed into the sleeve through a filler pipe mounted on top of the forming pipe. The space between the pipe and the pipe is connected to a vacuum system. The product enters the filler pipe through parallel horizontal disks, the upper of which rotates, and the lower one is fixedly mounted in the apparatus body and has two holes, one of which is connected to the filler pipe, the other from the bottom with the vacuum system hose. Between the disks, evenly around the circumference, there are telescopic measuring cups, the volume of which can vary. The dispenser glasses rotate periodically around the axis of the disks. During the measuring cups stand-up, one portion of the product is fed with compressed air from the feed hopper pipe, from the other cup the previously received portion of the product with compressed air is pushed through the filling pipe into the sleeve, which is then welded along the upper transverse seam and a separate bag is cut from it [2 ].

The main objective of the invention is the metered supply of flour into a vacuum receptacle for the manufacture of pasta-type flour products with high dosing accuracy, high reliability and ease of maintenance that do not require adjustment when changing the type and grade of flour dispenser.

The problem is solved by the claimed device for dispensing bulk products, comprising a loading hopper made with a bulkhead sealed with a transparent top and a nozzle for supplying bulk products, a housing joined to the hopper along the axis of which a rotation shaft, a vacuum system, and two parallel tight fit horizontal disks to each other, the lower fixed disk having an opening made therein, rigidly fixed to the base of the loading hopper, and the upper disk, in which at least one hole is made, is rigidly connected to the rotation shaft, while all the holes in the disks have the same diameters and are equidistant from the axis, the shaft is equipped with a clutch on which the cam is fixed with the possibility of interaction with the limit switch to prevent coincidence of the disk holes when stopping device, in the housing there is a L-shaped channel communicated at one end with an opening of the lower disk, and at the other end with a filler pipe connected to a receiving tank, which is sealed and provided with a sensor level, and the pipe for the supply of bulk products communicated with a sifter, inside of which atmospheric pressure is maintained.

The technical result of the claimed device consists in increased metering accuracy, high reliability, versatility of work on any flour and ease of maintenance. Increased metering accuracy is determined by maintaining a constant pressure drop in the sifter and in the receiving tank, the dough mixing trough. This is ensured by the operation of the vacuum system. At the same time, the dosage accuracy does not depend on the rotation speed of the movable disk, since the number of doses increases with increasing frequency, but the size of one dose decreases. Conversely, with a decrease in rotation speed, the number of doses decreases, but the value of one dose increases.

High reliability of the device is ensured by the minimum number of moving and, therefore, wearing parts responsible for the operation of the dispenser. Such parts are movable and fixed disks and a shaft with a coupling.

The batcher is highly versatile and works well on any flour - premium coarse pasta and fine coarse baking flour with a relative humidity of 9 to 15%.

Maintenance of the claimed device consists in periodic cleaning of the pipeline from random objects, maintenance of electrical connections and an electric motor. In addition, in the event of a stop by a signal from the limit switch, a good vacuum shutter is provided with steel, hardened, ground and ground to each other discs.

The inventive device for dispensing bulk products is illustrated in the drawing.

The device comprises a loading hopper 1, the upper part of which is made of transparent material. On the side surface of the hopper there is a pipe 2 for connection with a pipeline for supplying flour. The hopper 1 is mounted on the housing 3, in the upper part of which there is an upper rotating disk 4 and a lower fixed disk 5. The upper disk 4 is connected through a coupling 7 to the shaft 6. The fixed disk 5 is rigidly fixed in the housing 3. The shaft 6 is connected through a coupling 7 to an electric motor 8. A cam 9 is fixed to the coupling 7, which can act on the limit switch 10. In the housing 3 there is a L-shaped channel 11, which in the upper part coincides with the hole in the fixed disk 5, and ends on the side surface with the filling pipe 12. Filling pipe approx. 12 is connected to the wall of the receiving container in the form of a dough mixing trough 13, inside which there is a flour level sensor 14. In the upper disk 4 there are one or more holes that periodically open the L-shaped channel 11, during which the flour is fed into the dough mixing trough due to pressure drop.

A device for dispensing bulk products works as follows. After filling the flour sifter with flour, the electric motor 8 is turned on, which rotates the shaft 6 through the coupling 7. The shaft 6 rotates the upper disk 4 through the coupling 7. When the holes of the upper disk 4 and the fixed disk 5 are combined, a vacuum is created in the hopper 1. Under the action of the vacuum, the flour is sucked in the pipeline from the flour sifter to the hopper 1. After partially filling the hopper 1, the flour begins to enter the kneading trough 13 through the compatible holes of the upper disk 4 and the fixed disk 5, as well as through the L-shaped channel Al 11 in the housing 3. After filling the dough mixing trough 13 with flour, the sensor 14 generates a signal to turn off the electric motor 8. The motor 8 is turned off after the cam 9 acts on the limit switch 10. This blocking prevents accidental coincidence of the holes when the motor stops. During the steady-state operation of the dispenser, a vacuum is maintained in the dough mixing trough to a residual pressure of 10-15 kPa. A pulsating rarefaction of air is created in the hopper 1. It ranges from atmospheric pressure to a residual pressure of 40-60 kPa. Under the influence of this rarefaction, flour is fed in portions through the pipe 2 to hopper 1, which is then fed in metered portions to a dough mixing trough 13. The capacity of the flour dosing unit is determined by the diameter and number of holes in the upper disk 4. For example, for a productivity of up to 100 kilograms per hour, one holes with a diameter of 12 mm.

References

1. Improved flour metering batcher. // Mososov A. P., Bulanova V. D., Novikov K. G., Gusev D. V., Lukyanov M. I., Dremucheva G. F., Lukach E. N. // Bakery in Russia. - 1999. - No. 6. - p.16 - Rus .; res. English

2. Application 4343317 Germany, MKI B 65 V 1/16 / Hakkel Jan Weert, Schundara Raman; Robert Bosch GmbH. - No. 43433170; declared 12/18/93; publ. 06/22/95.

Claims (1)

A device for dispensing bulk products, comprising a loading hopper made with a sealed top part of a transparent material and a nozzle for supplying bulk products, a housing docked with the hopper, the axis of which has a rotation shaft, a vacuum system, and two parallel horizontal discs closely adjacent to each other moreover, the lower fixed disk having a hole made therein is rigidly fixed at the base of the loading hopper, and the upper disk, in which at least one hole is made is rigidly connected to the rotation shaft, while all the holes in the disks have the same diameters and are equidistant from the axis, the shaft is equipped with a clutch on which a cam is mounted with the possibility of interaction with the limit switch to exclude coincidence of the holes of the disks when the device is stopped, L-shaped in the case a channel communicated at one end with an opening of the lower disk, and at the other end with a filler pipe connected to a receiving tank, which is sealed and provided with a level sensor, and a pipe for supplying bulk solids products communicated with a screener, inside of which atmospheric pressure is maintained.