SU1785955A1 - Device for batching liquid and paste-like products - Google Patents

Description

The invention relates to packaging equipment and can be used in the packaging of liquid and pasty products in the food, chemical and other industries.

A device for filling vessels with liquid is known, consisting of a power chamber with a drain tube and a shut-off valve connected by a rod to a spring-loaded piston mounted in the chamber having openings for the passage of liquid. To reduce foaming, the piston is made in the form of a glass, in its wall the holes for the passage of fluid are arranged radially, and an annular groove is formed on the inner surface of the chamber.

Also known is a device for dispensing liquid and pasty products, containing a nozzle with side openings connected to the product pipe, a pneumatic cylinder and a metering cylinder having a common piston rod.

Significant disadvantages of the known device are: the lack of synchronization between the movement of the nozzle and the supply of the product, the increased mass and dimensions, the complexity of the design, i.e. the presence of an additional drive for suction and discharge, the inability to drop drops.

The aim of the invention is to expand the functionality and simplify the design.

This goal is achieved by the fact that in the known device containing a nozzle with side openings connected to the product pipeline, a pneumatic cylinder and a metering cylinder having a common piston rod, the nozzle is equipped with a check valve and is mounted on a piston rod in which an axial channel connected to the product pipe is made, and on the nozzle side of the pneumatic cylinder there is a chamber in communication with the piston cavity of the pneumatic cylinder, while the lateral openings are located under the check valve with the possibility of placing them in the chamber when ver It nozzle position. In addition, in order to ensure the possibility of dose adjustment, the metering cylinder is installed with the possibility of movement along the axis of the rod of the pneumatic cylinder and is spring loaded relative to the latter.

The drawing shows a device for dispensing liquid and pasty products.

The device contains a pneumatic cylinder 1, in the lower part of which (from the nozzle side) there is a chamber 2 connected by an air channel to the rod cavity 3 of the pneumatic cylinder 1. In the pneumatic cylinder 1 there is a piston 4 with a rod 5. One end of the rod 5 is made in the form of a plunger 6, and on the other end has a nozzle 7 with a check valve 8. under which there are side openings 9.>

The rod 5 has a through coaxial hole (channel) 10 connected to the nozzle

7. The upper part of the rod 5, made in the form of a plunger 6, is located in the metering cylinder 11, which is mounted in the guides 12 with the possibility of movement along the axis of the rod 5. A stop 13 is installed on the blind end of the cylinder 11, and between the stationary body 14 and the cylinder end surface 11 installed compression spring 15.

The supply of compressed air to the pneumatic cylinder 1 is carried out through a three-position pneumatic distributor 16. The cavity of the metering cylinder 11 through the check valve 17 and the product pipe 18 is connected to the tank 19, in which the packaged product is located.

The device operates as follows.

If there is a container 20 at the filling position, the pneumatic distributor 16 is turned on, as a result of which compressed air from the pneumatic network is supplied to the upper cavity of the pneumatic cylinder 1. The piston 4 with the rod 5 moves down and introduces the nozzle 7 into the container cavity. At the same time, the plunger 6 is withdrawn from the metering cylinder 11 and, through the check valve 17, draws in a dose of the product from the tank 19. When the air distributor 16 is switched, compressed air from the pneumatic network enters the lower cavity 3 of the pneumatic cylinder 1, as a result of which the rod 5 rises. At the same time, the plunger 6 is introduced into the metering cylinder 11 and passes through the channel 10 through the check valve 8, the product is fed into the container. After the end of the product supply and the action of the plunger b on the stop 13, the cylinder 11 together with the rod 5 moves upward, compressing the spring 15. At the end of the stroke of the rod 5, the nozzle 7 enters the chamber 2, compressed air from which cuts off the product through the openings 9 and cleans the end part nozzles 7 from the product.

After a specified period of time, on the command of a time relay (not shown in the drawing), the pneumatic distributor Ί6 switches to the middle position, cutting off the supply of compressed air to the chamber 2.

When supplying a new container, the dosing process is repeated.

Claims (2)

Claim 1. A device for dispensing liquid and pasty products, containing a nozzle with side holes connected to the product line, a pneumatic cylinder and 5 dosing cylinders having a common piston rod, characterized in that, in order to expand the functionality and simplify the design, the nozzle is equipped with a check valve and mounted on the piston rod, in which an axial channel is made, connected to the product pipeline, on the pneumatic cylinder, on the nozzle side, a chamber is connected that communicates with the piston cavity of the pneumatic cylinder, while kovye holes are arranged at the check valve with the possibility of placing their nozzles in the chamber at the top position. 2. The device according to claim 1, with the fact that, in order to ensure the possibility of dose adjustment, the metering cylinder is mounted with the ability to move along the axis of the rod of the pneumatic cylinder and is spring loaded relative to the latter. Editor Compiled by S. Lyakhovetskaya Tehred M. Morgenthal Corrector T. Paly Order 221 Circulation Subscription VNIIIPI of the State Committee for Inventions and Discoveries at the State Committee for Science and Technology 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Plant Patent, Uzhgorod, Gagarin St. 101