Improved cylindrical reservoir for thermal treatment of food mixture and machine for food mixtures manufacture equipped with such cylindrical reservoir

FIELD: food industry.

SUBSTANCE: invention relates to food industry and, particularly, to thermal treatment of a food product. The cylindrical reservoir for thermal treatment of a food product (8) contains a means (5) for such product heating and/or cooling and a stirrer (6) installed in the reservoir so that to be capable of rotation. The reservoir (1) consists of a cylindrical shell (4) closed with the rear bottom (3) and the front cover (7) and is equipped with means (15, 16) for supplying the food product (8) therein. Positioned inside the cover (7) is at least one sensor (9) of the food product (8) temperature, the sensory element whereof is in contact with the product (8) contained in the reservoir while the cover is closed.

EFFECT: invention usage will allow to enhance food product thermal treatment quality.

7 cl, 15 dwg

 

The present invention relates to a cylindrical tank for thermal treatment of food products and machines for the manufacture of food products, provided such cylindrical tank.

The scope of the invention covers a machine for the manufacture of food products (such as ice cream, creams for confectionery, chocolate products, cooking etc), subjected to single or combined heat treatment (for example, cooling in the case of manufacturing of ice cream or warming and cooling in the case of manufacturing cream pastry) in a cylindrical tank (hereinafter called "cylinder"), accompanied by an appropriate mixer or agitator, which rotate around the longitudinal axis. Control of the temperature of the product is carried out using a cooling/heating systems, usually consisting of a coil located on the outer surface of the cylinder.

To determine the temperature of the mixture of the food product within the cylinder, the latter contains a temperature sensor, which are structurally normally mounted on the vertical rear wall forming the bottom of the cylinder, located essentially horizontally (horizontal axis).

The main drawback of this known construction is connected with the fact that h is of the agitator during the rotation moves the food mass to the front of the cylinder. In this case, in particular when processing a small quantity of the product, the sensor located on the outer wall of the cylinder, remains uncovered by the product, i.e. it does not come into contact with it, resulting in the sensor readings will not match the actual product temperature.

The main aim of the invention is the creation of a new cylinder for heat treatment of a food product, which, in contrast to the known cylinder provided with means enabling the determination of the actual temperature of the product.

Another objective of the invention is to provide a cylinder of the specified type, which allows to determine the temperature of the food product, regardless of its consistency (with more or less fluid), and the number of product inside the cylinder.

Another aim of the invention is to provide a cylinder of the specified type, the design of which there are no obstacles to the normal process of thermal processing of food product and which at the same time allows to determine the instantaneous value of the true temperature in the cylinder of the food product.

This and other objectives are achieved by using a cylindrical tank and machine for the manufacture of food products, in accordance with paragraphs 1 and 8 of the claims. Preferred options for implementation and the finding is specified in the remaining claims.

The advantage of the machine for processing food products made according to the invention, in comparison with the known machines is that due to the location of the sensor on the cylinder head (i.e. where unloaded the food product) guaranteed permanent contact of the sensor with the food product that allows you to determine the true temperature of the food product within the cylinder. This result is also achieved in the case of a small amount of food product in the cylinder, in contrast to the known machines of this type, where the sensor is mounted on the rear of the cylinder, inevitably will not be covered food product.

In addition, when installing the sensor in the front of the cylinder on the lid, the sensor is isolated from the cooling/heating device, which otherwise could affect the operation of the sensor. At the same time, the specified location of the sensor does not reduce the effectiveness of this device in the front part of the cylinder.

These and other objectives, advantages and features of the invention will become apparent from the description of the preferred options for performing cylinder and machine according to the invention, given by way of example not limiting the scope of invention. In the description with references to the drawings, in which:

1 and 2 depict a longitudinal section of a known cylinder for heat treatment of the Russian handling of the food product, with a full load and partial loads, respectively,

figure 3 depicts a longitudinal section of a cylinder according to the first variant of the invention,

figure 4 depicts a section of the cylinder shown in figure 3, the horizontal plane,

figa and 4B depict a fragment As shown in figure 4 cylinder with closed and open, respectively,

figure 5 depicts the cylinder according to the invention with the lid open,

6 depicts a bottom section of the cylinder shown in figure 5,

figa depicts a fragment And figure 6,

7 depicts a front view of the cylinder according to the invention with the lid closed,

Fig depicts the installation of the sensor on the cylinder shown in the preceding figures,

figures 9 and 10 depict the cylinder according to another variant embodiment of the invention, fully loaded and partially, respectively, and

11 and 12 depict graphs of the temperature of the food mass is processed in the cylinders shown in Fig.9 (full load) and figure 10 (partial load), from time to time, respectively.

Figure 1 shows a known cylinder 1. On the back or bottom 3 of the cylinder 1 includes a probe 2 temperature or probe. On the outer surface of the cylinder 1 is located a coil 5 for circulation of cooling or heating medium. In addition, the cylinder 1 is equipped with front Ave is jimmym ring 1, mounted on the coil 5, an internal mixer or agitator 6, rotating around the axis, and the front flap or flange 7.

Figure 1 in the cylinder 1 is the maximum number of food product 8 (usually corresponding to half of the volume of the cylinder 1 and the cylinder 1 figure 2 - a small amount. When the cylinder is the maximum number of food product 8 (1), sensor 2 temperature immersed in it, and with a small amount of product (see figure 2) sensor 2 is fully open, and his testimony will be consistent with the ambient temperature and not the temperature of the product to be processed in the cylinder 1. Therefore, the processed food product located at the discharge opening of the cylinder shown in figure 2, does not reach a specified state (stability, consistency of cream, and the ability to be smeared and so on)corresponding to its desirable consumer properties.

To address this shortcoming in the cylinder 1, shown in figure 3, uses the temperature sensor 9 installed in the front part, which is the front cover 7 that covers the cylinder.

Installation of the sensor 9 directly on the cylinder 1, in the vicinity of the area occupied by the turns of the coil 5, could disturb the equilibrium of the system thermal processing of food product 8. For example, if the sensor would UDA who spend a certain amount of turns, the effect of thermal treatment would be significantly less, especially in the most critical areas of the cylinder, i.e. in the area of discharge of the product. If you install the sensor directly between the turns of the coil, it will be worse to work because of the inevitable impact of a significant temperature gradient when the machine is in operation.

For this reason, the author decided to install the front sensor 9 is not on the body of the cylinder 1, and the front cover 7.

As clearly seen in Fig sensor 9 is located in slot 10 of the cover 7 of the cylinder 1 so that its sensitive element 20 (figure 5) when closed, the lid 7 is in contact with the food product 8. The sensor 9 is fixed in the socket by a screw 11, which allows to easily replace the sensor without affecting the other elements of the cylinder.

In the plastic cover 7 when casting the embedded conductors 12 connected to the sensor 9 in the respective cavities in the metal casing. When the cover 7 is closed, the conductors 12 create an electrical connection between the sensor and the fixed contact 13 on the body of the cylinder 1 by snapping or sliding.

For transmission temperature sensor signal from pin 13 to the control unit of the machine (not shown) are the wires 14.

It was found that when the location of the sensor 9 at any point in the lower half 7a of the cover 7 (Fig) accuracy ODA is dividing the temperature of the food product 8, machined in the cylinder 1 will be the same.

In this embodiment of the invention the connection of the sensor 9 to the control unit of the machine is carried out when closing cylinder 1 cover 7 by a snap connection conductors 12 are located on the cylinder corresponding contact 13.

As shown in figure 3, the front flange 7, the closing cylinder 1, comprises a hopper 16 for loading ingredients, which is an alternative to the rear channel 15, intended for submission to be processed product, or used in conjunction with the channel 15 and the opening 17 for discharging the final product from the cylinder 1, small adjustable valve 18 (see also Fig.6-8).

In presented on figures 9 and 10 an alternative embodiment of the invention the cylinder 1 in front of the temperature sensor 9 has a rear sensor 2 temperature.

When working in the cylinder 1 download product 8, for example, through the channel 15, which ends at the rear of the cylinder 1. The amount of product 8 can vary from full load (corresponding to half of theoretical capacity of the cylinder) to partial load (less than a quarter of theoretical capacity of the cylinder 1).

When fully loaded cylinder 1 (Fig.9) both sensors 2 and 9 are in direct contact with the food product, i.e. they fully what orogeny it during the whole working cycle. In this case, the temperature values determined by the sensors 2 and 9, are almost the same. In the illustrated example, where the product is a mixture of ice cream, the difference of the readings of the sensors minimum for temperatures below zero (11).

In the case of a partial load of the cylinder 1 (figure 10) in contact with the product is only the front sensor 9, which corresponds to Fig. At temperatures below 0C the difference of the readings of the sensors 2 and 9, while at full load cylinder, this difference is almost nonexistent.

The described embodiments of the invention represented in the drawings do not limit the invention, within the scope of which is defined by the claims, various modifications are possible. For example, you may vary the number, type and location of temperature sensors inside the cylinder 1, but the position of at least one of them on the front cover of the cylinder is required.

The cylinder according to the invention can also be used in horizontal selfcoupling machines and combined machines for pasteurization and whipping food mixtures (such as machines, known on the market under the trademark "Trittico" Bravo company Spa).

1. Cylindrical tank for thermal treatment of the food product (8)containing the tool (5) heating and/or ohla is the origin of the food product and the agitator (6), installed in the tank for rotation about an axis, the container (1) consists of a cylindrical shell (4), a closed rear wall (3) and front cover (7)with means (15) feed the food product (8) in the reservoir (1) and contains at least one sensor (9) temperature of the food product (8)in the tank (1)and the front cover (7) has a front opening (17) for discharging the final product, characterized in that the said means (15) feed the food product (8) in the container (1) are located at the back wall (3)and the sensor (9) is located in the socket (10) front cover (7) of the cylinder (1) so that when the lid (7) is closed, the sensing element (20 5) sensor open for contact with the tank (1) food product (8).

2. The tank according to claim 1, characterized in that the socket (10) for the sensor (9) is provided anywhere in the lower half (7a) of the cover (7).

3. The tank according to claim 1 or 2, characterized in that the flange (7) is made of plastic and the tank also contains conductors (12), is pressed into the plastic flange (7)for the electrical connection of the sensor (9) with the corresponding fixed contact (13) on the tank (1) with closed lid (7).

4. The tank according to claim 3, characterized in that the connection conductors (12) with the specified contact (13) is carried out by latches the project or slip.

5. The tank according to claim 1 or 2, characterized in that in addition to the front of the sensor (9) it contains a sensor (2) temperature, located on the rear wall (3) of the tank (1).

6. The tank according to claim 1, characterized in that the front flange (7) comprises a hopper (16) to load the ingredients, as an alternative to the rear channel (15) of the tank (1), intended for the supply of food product to be processed, or in addition to this channel (15)and the hole (17) for discharging the end product, small adjustable valve (18).

7. Machine for the manufacture of food mixtures, characterized in that it is provided with at least one reservoir according to any of the preceding paragraphs.



 

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