Sealing device and sealing method

Abstract

An object of the present invention is to provide a sealing device and a sealing method with which oxygen substitution can be sufficiently carried out even in a bag-like container. The present invention is a sealing device for putting a content into a bag-like container and sealing the container, and includes a content supply portion that supplies the content to the container having an opening in an open state, an inert gas supply portion that supplies inert gas to the container, a liquefied inert gas supply portion that supplies liquefied inert gas to the container, and a sealing portion that seals the opening of the container after the liquefied inert gas is supplied.

1 . A sealing device for putting a content into a bag-like container and sealing the container, comprising:
 a content supply portion configured to supply the content to the container having an opening in an open state;   an inert gas supply portion configured to supply inert gas to the container;   a liquefied inert gas supply portion configured to supply liquefied inert gas to the container; and   a sealing portion configured to seal the opening of the container after the liquefied inert gas is supplied.   
     
     
         2 . The sealing device according to  claim 1 ,
 wherein the inert gas supply portion supplies the inert gas to the container while the content is being supplied.   
     
     
         3 . The sealing device according to  claim 1 ,
 wherein the content supply portion includes at least one guide member that is inserted into the container from the opening thereof and guides the supply of the content.   
     
     
         4 . The sealing device according to  claim 3 ,
 wherein two of the guide members are provided,   at least end portions of the two guide members on a side of being inserted into the opening of the container are configured to approach and separate from each other, and   the content is supplied into the container from a gap between the two guide members.   
     
     
         5 . The sealing device according to  claim 3 ,
 wherein the inert gas supply portion includes a gas supply pipe that is attached to the guide member.   
     
     
         6 . A method for supplying a content into a bag-like container and sealing the container, the method comprising:
 a step of supplying the content to the container having an opening in an open state;   a step of supplying inert gas to the container;   a step of supplying liquefied inert gas to the container after the inert gas is supplied; and   a step of sealing the opening of the container after the liquefied inert gas is supplied.   
     
     
         7 . The sealing method according to  claim 6 ,
 wherein the step of supplying the inert gas is performed during the step of supplying the content.   
     
     
         8 . The sealing method according to  claim 6 ,
 wherein the step of supplying the inert gas comprising:   a sub-step of inserting a gas supply pipe for injecting the inert gas into the container; and   a sub-step of discharging the inert gas from the gas supply pipe.