SU357119A1 - DEVICE FOR ASEPTIC BOTTOM OF LIQUID AND VISCOUS PRODUCTS IN PACKAGES FROM THERMOPLASTIC MATERIALS - Google Patents

Description

This invention relates to the canning, dairy, and pharmaceutical industries.

A device for aseptic filling of liquid and viscous products into packages of thermoplastic materials is known, consisting of a roll holder with a tape of a thermoplastic material, a sleeve forming mechanism simulated under it and an additional pipe with a heating element fixed around it, mechanisms for forming longitudinal and transverse seams and fitting for cutting off finished packages.

In this device, the isolation of the sterile product from the atmosphere is carried out only by the upward flow of bunks and hot air coming from the heating element, as a result of which, during process stops, the device is required to be repeatedly sterilized for a long time. The method of container sterilization adopted in the device causes an increase in the dimensions of this device, which complicates maintenance. Filling the sleeve with a sterile product, maintaining a constant level and preventing product overflow at process shutdowns are performed by special automatic clans that complicate the device.

to the heating pipe on both sides of the heating element, to secure the chambers of elastic material that are connected to the tubing with a source of compressed gas to hold the chamber walls to the inner surface of the sleeve.

To remove the sterilizing liquid vapors, the space between the chambers communicates with the atmosphere using tubes with a bacteriological filter fixed at the outlet. To fill the sleeve with a sternum product using a vacuum, forming under the lower chamber, the device is equipped with a refill capacity for the product

with bacteriological ukreeineum pad for created above the surface of the product of atmospheric pressure of sterile air.

Pa flg 1 schematically depicts an on-display device; in fig. 2 - a filling tube with a heating element and chambers of elastic material.

The device comprises a roll holder with a tape /, a sleeve forming mechanism 2,

a filling pipe 3, a longitudinal seam formation mechanism 4, a transverse groove formation mechanism 5 and a cut-off of the finished bag, a capacity 6 with a stern-lube product containing a bacteriological filter, and a balator regulating valves and control manometers. To insert a sterile product into the sleeve, a nanofill tube 3 is used, to which two chambers 8 are attached, made of an elastic material with a low coefficient of friction. Between the chambers there is a mounting element 9, closed at the top and bottom by screens 10, which protect the chambers from the radiation of the heating element. The chambers 8 are cavities limited by an elastic material, inside which gas is introduced into the tank through the tubes 11 passing inside the filling tube 3. The space between the chamber communicates with the atmosphere through the tube 12 passing inside the tube 3 and provided at the outlet with bacteriological filter 13.

A device for aseptic filling of liquid and viscous products into sheets of thermohacked materials works as follows.

A formed sleeve with a welded longitudinal tongue is passed through the upper and lower chambers 8 and is inserted into the mechanism 5, the nest of a gripping sleeve with uniform speed. A sufficient amount of gas is supplied to the upper chamber 8 for irradiating the elastic walls to the inner surface of the sleeve. The pressure inside the chamber is monitored by a pressure gauge. A sterilizing fluid, such as hydrogen peroxide, is then poured into the sleeve above the upper chamber 8, or the tape is first passed through a hydrogen peroxide bath, and a thin layer of liquid that is left on the inside walls of the sleeve after passing through the chamber is rapidly irradiated by radiation of the heating element 9. In this, vapor through tube 12 is emitted into the atmosphere.

Due to the bacteriological filter 13, the inner surface of the sleeve is completely isolated from the surrounding air. Then, the inflating gas is supplied to the lower chamber 8. Since the lower end of the sleeve is closed by a transverse groove, during further movement

a vacuum is created past the swollen chamber beneath it, sucking the product through the filling tube 3 from the tank 6. The bacteriological filter of the tank 6 is emitted

to create above the surface of the product normal atmospheric pressure of sterile air. Thus, the extent of the formation of the sleeve is sterilized and filled with the product. In mechanism 5, the sleeve is divided by ribs and cut into individual bags.

The subject is invented and

Claims (3)

1. A device for aseptic filling of liquid and viscous products into packages of thermoplastic materials, consisting of a roll holder with a tape of nz thermoplastic material, a sleeve forming mechanism, mounting a nannolny tube under it with a heating element ukrenleyny around it, mechanical mechanisms formed by hydrodal and policuline schv and a device for cutting finished packages, characterized by By the fact that, in order to preserve the sterile conditions of the device, the chambers of elastic material, communicated by tubes with a source of compressed gas, are fastened on both sides of the heating element to press the walls of the chamber to the inner surface of the sleeve. 2. The device according to claim 1, characterized in that, in order to remove the liquid of the sterilizing liquid, the space between the chambers is in communication with the atmosphere by a system of tubes with a bacteriological filter that is reinforced by the exit. 3. The device on n. 1, characterized in that, in order to sterilize the sleeve With the product using a vacuum formed under the lower chamber, it is provided with an additional capacity for a product with a strengthened bacteriological filter for creating a sterile air atmospheric pressure surface. Phie 2