JPS62168827A - Method of making inert gas flow into bag in chamber box - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for injecting gas into a bag in a chamber box using an inert gas filling method.

Conventional technology The inert gas filling method using a bag inside a chamber box first closes the chamber to vacuum, fills the bag with gas from the opening, and then seals the opening when the desired amount is reached. Generally, the process of removing the bag from the bag is carried out.

Problems to be Solved by the Invention Considering the relationship between gas filling, that is, the inflow of gas into the bag, and sealing in the above process carried out in the chamber, it is most desirable that the gas inflow time is short enough to fill the required m. The purpose of this is to open the bag opening as wide as possible, but opening it too wide also increases the possibility of wrinkling the bag seal. On the other hand, when applying a seal, it is necessary to leave no creases in the opening, and the nozzle for gas inflow is placed above the sealing bar. From this point of view, it can be said that the conventional means have contradictory properties in the relationship between gas inflow and sealing, and thus have the following contradictions. Furthermore, in order to fill the chamber with gas under vacuum conditions, the pressure exerted on the outer surface of the bag strongly presses the opening neck, and the inflow of gas sent from the nozzle above is subject to considerable restrictions. I don't get it.

Means for Solving the Problems As a method for solving the problems related to the gas inlet means and the bag mouth seal as described above without any contradiction, the present invention achieves the intended purpose as follows. The goal is to achieve this goal.

That is, in the present invention, after the inside of the chamber box is evacuated, the gas hose 31 is inserted deeper than the sealer 4 into the opening 2 of the bag l, and the opening 2 is inserted in the width direction of the bag (a) near the bottom of the sealer. The bag is filled with gas while being pulled outward, and after a predetermined amount of gas has flowed in, the hose 3 is removed and sealed. After sealing is completed, the bag is taken out.

Function The method of the present invention is performed entirely within a chamber box, and the gas hose 3 is inserted through the opening 2 of the bag 1, but the interior of the chamber box is vacuum and the pressure applied to the outer surface of the bag 1 closes the opening. 2 does not have a large opening, and the opening near the bottom of the sealer 4 can be pulled outward in the width direction of the bag (A) to make it flat, which does not occur in the sealing position seen in conventional examples. This prevents wrinkles 6 from occurring and allows for a complete seal. Further, since the gas hose 3 is inserted deeper into the opening than the seal bar and gas flows in, gas filling can be performed in a shorter time than when the opening is opened wide and the nozzle 5 is discharged from a position above the sealer.

As shown in FIG. 1, the gas hose 3#-i may be separated in the stacking direction at the opening 2 of the bag (3a), and the opening may be pushed up by the sliding of the seal bar and the opening may be removed diagonally. (3b) Effects of the Invention In contrast to the conventional method of evacuating the chamber box and injecting inert gas into the bag, the present invention allows the opening to escape in the width direction below the seal bar of the opening. By pulling outward to prevent IIl that occurs during sealing, it is possible to eliminate S leakage of the filled gas, and by inserting the gas hose 7 deeply below the seal bar, it is possible to fill the gas in a short period of time. The effect of this method is to resolve the above-mentioned contradictory matters found in existing methods, and to provide extremely rational and efficient results with simple means.

[Brief explanation of drawings]

The drawings are explanatory diagrams of the operation, and FIG. 1 shows the present invention and FIG. 2 shows the conventional example.

Claims (1)

[Claims] Insert the gas hose deeper than the seal bar at the opening of the bag in a vacuum chamber box, and fill the gas with a predetermined amount while pulling the opening outward in the width direction of the bag near the bottom of the bar. A method for injecting inert gas into a bag in a chamber box, characterized by removing the hose after inflow and applying a seal.