SU856900A1 - Apparatus for sealing thermoplastic parcels - Google Patents

Description

(54) DEVICE FOR PRINTING THERMOPLASTIC

PACKAGE

I

The invention relates to packaging. equipment and touches the device for sealing a thermoplastic bag, preferably packed in a container, and can be used primarily in the fish industry for sealing fish products packaged in cardboard drums with heat sealable liners.

The closest to the proposed technical essence and the achieved result is a device for sealing a thermoplastic bag containing a vacuum system, a welding mechanism with movable welding jaws and a leveling device located above it with a movable nose clips C1 "

However, the known device D does not provide a small height of the neck of the package laid in the container when it is sealed, thereby, increases the consumption of heat-sealing

your material. It does not provide high quality packaging because of the air volume and the difference in air between the product and the weld, which prevents long-term storage of oxidized products.

The purpose of the invention is to improve the quality of packaging and save material.

The goal is achieved by the fact that a device for sealing a thermoplastic bag containing a vacuum system, a welding mechanism with movable welding jaws and a leveling device located above it with movable grippers are equipped with a bag throttle mounted on the welding jaws consisting of spring-loaded elastic clamps and The hinged spring-loaded levers, and the akhvats are hollow, communicated with the vacuum system and have a hole on the product side of the bag.

FIG. I and 2 schematically depict a device for printing a thermoplastic bag, front and side view; in fig. 3 - element of leveling device; in fig. and 5 - the device in the initial position, front and side view

The device comprises a leveling device 1 with movable grippers 2 for stretching the neck of the bag 3, a welding mechanism 4 with movable welding jaws 5, a vacuum system 6 and a bag neck manipulator mounted on the welding jaws 5.

The manipulator of the package neck consists of spring-loaded 7 elastic clamps 8 and pivotally spring-loaded 9 springs of levers 10 with support ends 11, while the clamps are in the closed position of the leveling device I above and below the working ends of the grips 2 The grippers 2 are hollow-filled and their cavities 12 communicate with the vacuum system 6 and on the product side of the bag there are holes 13 for air suction.

Under the welding mechanism 4 a conveyor 14 is installed for inlet and outlet of the cardboard drums 15.

The device works as follows.

A bag 3 of thermoplastic material, laid in a cardboard drum 15 and filled with salted fish, is put on the grips with the neck 2. The grips 2 are moved apart and stretch the neck of the bag 3, which is conveyed by heat 14 to the welding mechanism 4.

Welding mechanism 4 is turned on, and welding jaws 5 begin to move towards each other. The elastic clamps 8 and the levers 10 of the leveling device 1 also approach each other with the movement speed of the welding jaws 5. The supporting ends 11 of the spring-loaded levers 10 first come into contact with the film, squeeze, the neck of the package 3 along the edges above the welding jaws 5 in the area straightened by the grips. The supporting end 1J with the straightened section of the neck of the packet 3 sandwiched between them is moved from top to bottom,

 it under welding sponges 5, lowering at the same time below sponges 5.

At this moment, the elastic spring-loaded clamps 8 are closed, crimping the neck of the bag 3 over the working ends of the grippers 2, form a closed volume of the bag 3. The vacuum system 6 is turned on and the air is removed through the holes 1 in the grips 2

0 from a closed volume, while the walls of the neck of the package are pressed tightly by atmospheric pressure of the air, and the approaching welding sponges 5 form a welding seam.

5 After welding, the device operation is completed. in reverse order, and the product sealed in the bag 3 and packed into the drum 15 by the conveyor 14 is moved to the position 0 of the drum capping with the bottom,

In the case of installation of the device in the unit for the manufacture, filling and printing of packages package 3, laid in a cardboard drum 15,

5, the conveyor 14 is fed to the welding mechanism 4 with the grips 2 extended on the previous order.

Then the cycle repeats.

0 The proposed device provides, in comparison with the well-known, an increase in the quality of packaging, a saving in thermoplastic material and allows an increase in the shelf life of the food product packed in a package. The savings from the implementation of the proposed device is approximately 1/7. The cost-effectiveness of the packaging line for small fish in cardboard

0 wound drums.

Claims (1)

Invention Formula A device for sealing a thermoplastic bag, preferably packed in a container containing a vacuum system, a welding mechanism with movable welding jaws and A screeding device located above it with movable XBaTaNm, characterized in that, in order to improve the quality of the packaging and save material, it is equipped with a package neck manipulator mounted on the welding jaws and consisting of spring-loaded elastic clamps and pivotally fixed spring-loaded arms 5856900 4 chagov, and captures are made hollow. Sources of information, communicated with the vacuum system and associated prP versions IHT. . ° P "- certificate of SSS  . 567633, cl. B 65 B 7/06. 1974.