SU141097A1 - Vacuum filling device for canning filling machines - Google Patents

Description

Vacuum-filling devices for carousel-type machines are known; they are heads that are equipped with a cartridge and channels, one of which is connected to the vacuum pump by a slide valve and the other to the filling tank, from which the product, after removing air from the can, enters it atmospheric pressure.

Also known are devices for filling canned cans with a puree product without evacuating them, using special dosing glasses (chambers) to ensure the accuracy of the product dosing.

A device for packaging thick mash-like products into cans with their prior evacuation, made in the form of two sealed cans, interconnected by a barometric tube, is offered.

The upper tank, in turn, is connected to the pipeline and the vacuum pumping unit lowered into it, and the lower tank at its base is connected to the body of the movable head equipped with two transverse channels, while the upper part of the head body is connected on one side with a vacuum tube the upper part of the upper tank, and on the other hand, the dosing chamber with the displacer, which operates on the principle of communicating vessels, is adjacent to it.

In the upper part of the movable head, an L-shaped channel is made, connecting the dosing chamber with the atmosphere when the head is in the upper position, and in the lower part, which ends in a cartridge, two channels are formed, one of which connects the empty can under the cartridge with a vacuum tube and the other with a dosing chamber.

The proposed device (see drawing) consists of a pipe for feeding product 1, an upper tank 2, a suction tube 3, a barometric tube no. 141097-2 of a diverging tube 4, a tank 5, a movable cartridge 6, a cartridge body 7 with a dosing chamber 8, a displacer 9, vacuum tube 10. In the movable cartridge 6 there are channels 11, 12 and 13 for the passage of the product and channels 14 and 15 for the passage of air. The device provides for two vacuum gauges 16. A valve is installed on the pipe / mounted, actuated by an actuator. The latter receives a command from the level controllers whose sensors are located in tank 2. Ensuring a constant level in the tank prevents the product from entering the vacuum system. A reflector mounted in front of the tube, which connects the tank 2 with the vacuum pump, prevents channeling into the vacuum pipeline.

The device works as follows: through the tube / product enters the lower tank 5, through the channel 12 into the dosing chamber 8 and through the channel 11 into the tube 3 to the level of the product in the tank 5.

When creating a vacuum in the upper tank 2, about 300 ml1. Hg Art. the product rises through pipes 5 and 4 to the level indicated on the drawing. By raising the product from the bottom tank 5, a vacuum of about 250 mm Hg is created in the latter. Art.

When there is no container, the movable cartridge is in a lower position. When the cartridge is lifted by the upper edge of the container, the dosing chamber 8 is disconnected from the tank 5 and the tube 5. The tube 3 through the vacuum tube 10 and the hole in the cartridge 14 is connected to the container under atmospheric pressure.

Under the action of the pressure difference, the product column from the tube 3 is transferred to the tank 2 and in the container creates a discharge of 300 mm Hg. Art., the same as in the tank 2. With a further rise of the cartridge 6, the channel 13 coincides with the channel 12, the connection of the dosing chamber 8 with the container, and the drilling 15 with the channel 11; wherein the metering chamber is connected to the atmosphere. Product from the dosing chamber under the action of a vacuum of 300 mm Hg. Art. fills the container, after which the latter is lowered and the cartridge returns to its original position under the action of its own weight or spring. ,

Dosing chamber under vacuum at 300 mm Hg. Art. the product is refilled and the cycle is repeated from the beginning.

The proposed device can be recommended for the development and manufacture of an experimental sample and testing for a wide range of products at different packaging temperatures.

Subject invention

Claims (2)

1. A vacuum filling device for canning container filling machines, made in the form of a head with a cartridge and channels for venting air from the can and supplying product to it, characterized in that, in order to improve the metering accuracy of the product, the head is vertically movable, enclosed in a housing, on one side of which a dosing chamber is attached, and on the other, a sealed tank with a barometric tube lowered into it, carrying a second tank at its upper end connected to a product pipeline lowered into it , A vacuum pump and by means of a vacuum tube with the head casing. 2. A device according to claim 1, characterized in that, in order to communicate the dosing chamber with the lower tank and the vacuum tube, the head is provided with annular channels and its body has openings that overlap when the head is raised.