Apparatus for packing container and method of packing container

1 . A container packaging apparatus comprising:

a moving table supporting a container;

a bag supply unit configured to supply a vinyl bag to cover the container on the moving table, wherein the vinyl bag has an upper part that is sealed and a lower part that is opened;

a load port including a pair of support blocks that support a bottom surface of the container transferred from the moving table and are spaced apart with a gap through which the vinyl bag passes; and

a thermosetting unit configured to form a sealing line on the lower part of the vinyl bag to seal the vinyl bag, the thermosetting unit including a heating block having a heating coil and an elastic pad in contact with the heating block while the vinyl bag is heated by the heating block,

wherein a number of windings per unit length of the heating coil at an edge of the heating block is greater than a number of windings per unit length of the heating coil at a center of the heating block,

wherein a thickness of the vinyl bag is in a range from about 0.03 mm to about 0.05 mm,

wherein a thickness of the elastic pad is in a range from about 3 mm to about 7 mm, and

wherein the pair of support blocks respectively support one side and another side of the bottom surface of the container.

2 . The container packaging apparatus of claim 1 ,

wherein the heating block includes a plurality of heating protrusions configured to apply heat to the vinyl bag interposed between the elastic pad and the heating block, and

wherein each of the plurality of heating protrusions continuously extends in a width direction of the vinyl bag.

3 . The container packaging apparatus of claim 2 , wherein a surface of the elastic pad contacting the plurality of heating protrusions includes a flat surface.

4 . The container packaging apparatus of claim 2 , wherein a distance between the heating block and the elastic pad in a first direction is adjusted by moving at least one of the heating block and the elastic pad.

5 . The container packaging apparatus of claim 1 , wherein the number of windings per unit length of the heating coil at the edge of the heating block is in a range from about 110% to about 150% of the number of windings per unit length of the heating coil at the center of the heating block.

6 . The container packaging apparatus of claim 1 , wherein the pair of support blocks include ultra-high molecular weight polyethylene.

7 . The container packaging apparatus of claim 1 , wherein each of the pair of support blocks is a single piece.

8 . The container packaging apparatus of claim 7 , wherein each of the pair of support blocks includes:

a connection block;

a front block extending from one end of the connection block in a direction bent with respect to an extension direction of the connection block; and

a rear block extending from another end of the connection block in a direction bent with respect to the extension direction of the connection block.

9 . The container packaging apparatus of claim 8 ,

wherein the bottom surface of the container includes a protrusion, and

wherein the front block and the rear block are spaced apart from the protrusion.

10 . The container packaging apparatus of claim 7 , wherein the pair of support blocks have a shape symmetrical to each other.

11 . The container packaging apparatus of claim 1 , wherein the bag supply unit includes:

a supply roll configured to supply vinyl fabric;

a holder including a plurality of holding blocks configured to hold an end of the vinyl fabric and configured to move the vinyl fabric; and

a cutter configured to cut the vinyl fabric to separate the vinyl bag from the vinyl fabric.

12 . The container packaging apparatus of claim 1 , wherein a part of the bottom surface of the container in contact with the moving table does not overlap with parts of the bottom surface of the container in contact with the pair of support blocks.

13 . A container packaging apparatus comprising:

a load port including a pair of support blocks that support a container covered with a vinyl bag and are spaced apart from each other with a gap through which the vinyl bag passes; and

a thermosetting unit configured to form a sealing line under the vinyl bag and including a heating block having a heating coil and an elastic pad contacting the heating block while the vinyl bag is heated by the heating block,

wherein a number of windings per unit length of the heating coil at an edge of the heating block is greater than a number of windings per unit length of the heating coil at a center of the heating block,

wherein the pair of support blocks respectively support one side and another side of a bottom surface of the container, and

wherein the pair of support blocks are each a single piece.

14 . The container packaging apparatus of claim 13 ,

wherein a distance between the heating block and the elastic pad in a first direction is adjusted by a movement of at least one of the heating block and the elastic pad, and

wherein a thickness of the elastic pad in the first direction is in a range from about 3 mm to about 7 mm.

15 . The container packaging apparatus of claim 14 ,

wherein the heating block includes two heating protrusions configured to apply heat to the vinyl bag interposed between the elastic pad and the heating block,

wherein the two heating protrusions each extend in a second direction perpendicular to the first direction, and

wherein the two heating protrusions are spaced apart in a third direction perpendicular to the first and second directions.

16 . The container packaging apparatus of claim 13 ,

wherein the bottom surface of the container includes a protrusion,

wherein the pair of support blocks include a mounting surface in contact with the bottom surface of the container, and

wherein the pair of support blocks are spaced apart from the protrusion on the bottom surface of the container.

17 . The container packaging apparatus of claim 16 , wherein each of the pair of support blocks includes:

a connection block;

a front block extending from one end of the connection block in a direction bent with respect to an extension direction of the connection block; and

a rear block extending from another end of the connection block in a direction bent with respect to the extension direction of the connection block.