RU80944U1 - DEVICE FOR PREPARING THE MIXTURE - Google Patents

Abstract

The invention relates to food engineering and can be used for automated dosing and preparation of mixtures of various products containing at least one common loose ingredient, for example, various varieties of chocolate.

A device for preparing the mixture contains a hopper of a granular substance - an ingredient, at the base of which there is a loading unit with the inlet part of the screw feeder located in it, the outlet part of which is placed in the receiving funnel of the weighing hopper - mixer of ingredients, in which at least one controlled output of the other ingredient, a screw feeder is located horizontally and equipped with an adjustable drive, the second weighing hopper-mixer of ingredients, in the receiving funnel of which is placed at least th least second controllable output other ingredient feeder, a screw feeder is double-sided, the second output portion of the screw feeder is placed in the receiving hopper of the second weighing hopper - mixer, a steering actuator is reversible

The dosing device for preparing the mixture contains a weighing hopper mixer connected to a bulk hopper with a horizontally arranged screw feeder with an adjustable drive, a second weighing hopper mixer, a screw feeder made two-sided, a second weighing hopper mixer connected to the second side of the screw feeder, and adjustable the drive is reversible.

The offer provides maximum work efficiency and the possibility of simultaneous preparation of two different mixtures with one component.

1 ill.

Description

The invention relates to food engineering and can be used for the automated preparation of mixtures of various products containing at least one common loose ingredient: semi-finished food products, animal feed, building mixtures, in particular, in the confectionery industry for the preparation of various varieties of chocolate.

In the preparation of mixtures, hoppers for each ingredient are used, from which the products to be mixed are fed into a common weighing hopper - mixer. To increase the accuracy of dose measurement, a preliminary dose is set by the main material stream, and then they are refilled to the nominal dose value.For example, a device containing a loading hopper with a built-in vibratory tray in its bottom is attached to which vibrators are attached, providing respectively the main and filling material flows ( see, for example, auth. Certificate of the USSR No. 1755058, Ml G 01 G 13/04, declared July 20, 1990) or two screw feeders “Roughly” and “Exactly” (see, for example, the magazine “World of Measurements” No. 3 for 2003, p. 27)

Mixtures of bulk materials are prepared by independently controlled dosing of each of the bulk components (See, for example, RF patent No. 20111411, Ml. 01 F 15/04, application 08.02.91)

A common drawback of these technical solutions is, according to the applicant, the structural complexity of the devices due to the presence of two controlled elements that regulate the consumption of the dosed ingredient.

Partially, this drawback is eliminated in devices using a single screw feeder with a frequency-controlled drive (see, for example, the journal "World of Measurements" No. 3 for 2003, p. 27) In this case, the material is fed into the weighing bin with intensive rotation of the screw feeder, and accurate weighing of the dose - at a slow speed of rotation of the screw feeder.

Closest to the proposed technical solution is a device for dispensing an additional bulk substance, which is used, for example, to distribute stabilizers in fishmeal during its production (see, for example, RF patent No. 2027500, Ml. 01 F 15/04, claimed 01.11.91 g) This device for dispensing granular material contains a hopper of granular material, a metering mechanism with a drive and a cultivator made in the form of zigzag spring wires, the output of the metering mechanism is open in the outlet pipe of the main feeder of the bulking agent.

In all these solutions, the supply of each ingredient to each weighing hopper - mixer is made by at least one feeder. However, in almost many industries, almost simultaneously produce various varieties of mixtures having similar compositions of ingredients or differing from each other by the presence or absence of any ingredient. For example, in the preparation of various confectionery mixtures to produce different varieties of chocolate, for white chocolate, cocoa butter and powdered sugar are mixed with milk powder, and for black chocolate - with cocoa powder. Therefore, it is impossible to simultaneously prepare various mixtures on the same equipment without reducing the quality of the prepared mixture due to the ingress of components that do not meet the technical conditions. The efficiency of the device is further reduced due to the fact that the process of mixing the ingredients takes longer than the dosing process, since the dispenser is idle while mixing the ingredients. The purpose of this proposal is to address these disadvantages of the known devices, i.e. creating a device for preparing the mixture, which provides greater work efficiency and the ability to simultaneously prepare two different mixtures with one common component.

For this purpose, in a device for preparing a mixture containing a hopper of a granular substance - an ingredient, at the base of which a loading unit is placed with the inlet part of the screw feeder located in it, the outlet part

which is placed in the receiving funnel of the weighing hopper - mixer of ingredients, in which at least one controlled output of the feeder of the other ingredient is placed, the screw feeder is horizontal and equipped with an adjustable drive, a second weighing hopper-mixing of ingredients is introduced, in the receiving funnel of which is placed at least the second controlled output of the feeder of another ingredient, the screw feeder is equipped with a second output part, located opposite to the output part of the screw feeder, and placed in the reception oh funnel -smesitelya second weighing hopper, and the steering actuator is reversible.

Conducted patent research did not reveal identical and similar technical solutions. The proposed device can be manufactured on an industrial scale, has successfully passed tests and is suitable for preparing a mixture of various ingredients, in particular, in the confectionery industry, in the production of animal feed, dry building mixes, etc. The set of essential features of the claimed device for preparing the mixture does not follow explicitly from the studied prior art, has significant differences from the considered analogues. Therefore, the applicant believes that the claimed device for preparing the mixture meets the criterion of "novelty" and has an inventive step.

The invention is illustrated by the drawing, which shows the implementation of the proposal on the example of a device for preparing mixtures for the production of "black" and "white" chocolate. The device can also be used for the simultaneous production of two close to each other different varieties of the product, for example, chocolate with various fillers or flavors.

A device for preparing the mixture contains a hopper 1 of a granular substance - a common ingredient, connected to the input 2 of a horizontally located double-sided screw feeder 3, one output part 4 of which is located in the receiving funnel 5 of the weighing hopper-mixer 6, and the second output part 7 of the screw feeder 3 opposite to it placed in the receiving funnel 8 of the second weighing hopper-mixer 9. The screw feeder 3 has an adjustable reversible drive 10. The drawing also shows the bins 11 and 12 of individual bulk ingredients (e.g. measures fillers) for the mixtures obtained in the weighing hoppers mixers 6 and 9 (in the example in silo - a mixer 6 supplied cocoa powder, and the hopper - mixer 9 - dry

milk) The bunkers 11 and 12 of the individual bulk ingredients are equipped with controlled gates (not indicated in the drawing) for dosed feeding of the contents through the respective receiving funnels 5 and 8 into the bins-mixers 6 and 9. The device also contains a reservoir 13 of oil, which is a liquid binder of chocolate. Pipelines 14 with controlled valves (valves are not shown in the drawing) connect the oil tank 13 to the weighing bins - mixers 6 and 9, the reservoir 13 and all the bunkers are mounted on the respective load cells 15, which allow to determine the weight of the ingredients in the reservoir 13 and the bunkers. Force sensors 15 are connected to the inputs of the control unit of the device (not shown), the outputs of which are connected respectively to the control elements of the supply of ingredients, in particular, to the adjustable reversible drive 10 of the screw feeder 3.

The device for dispensing works as follows: in the hopper 1 load granular substance, - icing sugar - and in the tank 13 - oil. Powdered sugar and butter are common ingredients for black and white chocolate cooked in weigh bins-mixers 6 and 9. In the bins-mixers 6 and 9, the individual ingredients of the obtained mixtures - milk powder and cocoa powder, respectively, from the bins 11 and 12 are delivered separately and independently from one another. According to the commands from the control unit, the drive 10 ensures the supply of powdered sugar from the hopper with a two-sided screw feeder 3 1 into one of the bins 6 or 9, depending on the direction of rotation of the adjustable reversible drive 10, as well as oil from the tank 13 by opening the valve on the corresponding pipe 14, Simultaneously with the entry of ingredients into one from the hoppers - mixers in it, the process of mixing the ingredients begins until a homogeneous mixture is obtained. The signals from the outputs of the load sensors constantly transmit information about the mass of products in the corresponding weighing hopper-mixer. Upon reaching the specified mass value of each ingredient in this weighing hopper-mixer, for example in the weighing hopper-mixer 6, according to the commands of the control unit, the feeders stop feeding the corresponding ingredients to it, and when the specified mass of the common ingredient is reached, the adjustable reversible drive 10 of the screw feeder 3 starts work in the opposite direction, which ensures the supply of bulk material from the hopper 1, which is a common component for those prepared in weight

mixing hoppers 6 and 9 mixes (powdered sugar) into the weighing hopper mixer 9. The reversing drive 10 of the double-sided screw feeder 3 is made adjustable, which allows, when the mass of the feed material approaches the predetermined one, (controlled by the corresponding load sensor), reduce the feed rate for increasing dose accuracy. Upon reaching the set value of the mixture mass in the weighing hopper-mixer 9, the adjustable reversible drive 10 of the screw feeder 3 is again reversed, i.e. feeds powdered sugar to the weighing hopper-mixer 6, if the hopper-mixer 6 is freed from the previous portion of the mixture. As in the previous case, the adjustable reversible drive 10 of the screw feeder 3 allows, when the mass of the feed material approaches the preset, to reduce the feed rate of the material to increase the accuracy of the dose. Upon reaching the specified value of the mass of the mixture in the weighing hopper-mixer 6, the adjustable reversible drive 10 of the screw feeder 3 is stopped. At the end of the mixing time of the ingredients in the mixer hopper 6, the homogeneous mixture is removed from it and the loading process is repeated again.

It should be noted that since the mixing of the components in the mixer hopper is longer than filling the hopper with ingredients, the proposed technical solution allows to intensify the process of preparing mixtures: it is possible to load one hopper - mixer while mixing the mixture in another. Considering that the mixing time of the ingredients of the mixture can be determined during the adjustment of the device, the performance of the screw feeder 3 can be chosen such that it will work almost continuously, i.e. with the lowest possible productivity, not causing the dosing process to stop, which will increase the accuracy of dosing the ingredient. In addition, the process of filling both hopper mixers occurs independently of one another. This allows, if necessary, to ensure the release of only one grade of product using only one of two hopper mixers.

Claims (1)

A device for preparing a mixture containing a hopper of a granular substance - an ingredient, at the base of which there is a loading unit with the inlet part of the screw feeder located in it, the outlet part of which is placed in the receiving funnel of the weighing hopper-mixer of the ingredients, in which at least one controlled output of the feeder is placed of another ingredient, the screw feeder is located horizontally and is equipped with an adjustable drive, characterized in that a second weighing hopper-mixer of ingredients is introduced into it, in the receiving in the funnel of which at least the second controlled output of the feeder of the other ingredient is located, the screw feeder is equipped with a second output part located opposite to the output part of the screw feeder and placed in the receiving funnel of the second weighing hopper-mixer, and the adjustable drive is made reversible.