CN221699819U - An IBC ton barrel liner bag - Google Patents

Abstract

The utility model discloses an IBC ton barrel liner bag in the field of packaging technology, comprising a rectangular cubic bag body, an upper valve mouth piece and a lower valve mouth piece, characterized in that: the rectangular cubic bag body is formed by splicing 4 plastic films by heat sealing, the 4 plastic films are respectively an upper film layer, a lower film layer and two middle folded films, wherein the upper film layer and the lower film layer are rectangular films, the middle film is two folded films, the folded films are opened outward after being spliced, and the long sides of the 4 films are connected by straight heat sealing, the short sides of the 4 films are connected by V-shaped heat sealing, the heat-sealed bag body is a rectangular cube after unfolding, the upper valve mouth piece of the bag body is heat-sealed in the center of the upper film layer, the lower valve mouth piece is heat-sealed in the corresponding position of the lower film layer, and the formed bag body matches the shape of the IBC ton barrel liner. The utility model has the advantages of firm and reasonable structure, good fit between the bag body and the container, and convenient automated process production.

Description

An IBC ton barrel liner bag

Technical Field

The utility model relates to an IBC ton barrel liner bag in the technical field of packaging.

Background Art

In logistics storage and transportation, IBC ton barrel liner bags are widely used for the storage and transportation of liquid products. The common IBC ton barrel liner bags generally adopt the tube film forming process. During the heat sealing process, the heat sealing splicing line formed by the V-shaped heat sealing of the bag body will be placed on the top and bottom of the bag body. Due to the limitation of the heat sealing splicing line, the hard upper valve mouth of the bag body cannot be installed at the center position of the top of the bag body, and the hard upper valve mouth of the bag body is often deviated from the center position; in addition, since the upper valve mouth of most IBC ton barrel liner bags uses a soft interface, it is impossible to form a good sealing structure, so that the bag body and the barrel wall cannot fit well, there are many problems in the installation and use of the liner bags.

Utility Model Content

The purpose of the utility model invention is to overcome the shortcomings of the prior art and provide an IBC liner bag with a new structure and molding process, an IBC liner bag structure suitable for automated production mode, and enable the hard upper valve mouth piece of the bag body to be installed in the center position of the top of the bag body.

The utility model is realized through the following technical solutions:

An IBC ton barrel liner bag, comprising a rectangular cubic bag body, an upper valve mouth piece and a lower valve mouth piece, characterized in that: the rectangular cubic bag body is formed by splicing 4 plastic films by heat sealing, the 4 plastic films are respectively an upper sheet film, a lower sheet film and two intermediate films, wherein the upper sheet film and the lower sheet film are rectangular sheets, the intermediate film is two folded films, the folded films are opened outward after splicing, and the long sides of the 4 films are connected by straight line heat sealing, the short sides of the 4 films are connected by V-shaped heat sealing, the heat-sealed bag body is a rectangular cube structure after unfolding, the upper valve mouth piece of the bag body is heat sealed at the center of the upper sheet film, the lower valve mouth piece is heat sealed at the corresponding position of the lower sheet film, and the formed bag body matches the IBC ton barrel liner; further explanation of the above technical scheme: the X-shaped splicing lines formed by the V-shaped heat sealing of the rectangular cubic bag body are respectively placed on the two sides of the bag body; further explanation of the above technical scheme: the straight line heat sealing of the rectangular cubic bag body The long edge splicing lines are respectively placed on the two upper long sides and the two lower long sides of the rectangular cubic bag body; the above technical scheme is further explained: the upper valve mouth piece adopts a sealing clamping method, the upper valve mouth piece is clamped with the upper mouth of the IBC ton barrel, and is provided with a single-layer or double-layer sealing structure; the above technical scheme is further explained: the lower valve mouth piece of the rectangular cubic bag body also adopts a sealing clamping method, the lower valve mouth piece is clamped with the lower discharge port of the IBC ton barrel, and is provided with a single-layer or double-layer sealing structure; the above technical scheme is further explained: the upper valve mouth piece and the lower valve mouth piece of the rectangular cubic bag body are made of hard materials, and fully automated production can be achieved in the production process of the liner bag; the above technical scheme is further explained: four marks are respectively provided at the four corners of the upper sheet film of the rectangular cubic bag body, which is helpful to determine whether it is installed in place when installing the IBC ton barrel liner bag; it is helpful to observe the wall adhesion condition of the bag body during filling and use.

The utility model has the characteristics of firm and reasonable structure, good fitting of the bag body and the container, and convenience for automated process production.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a diagram showing the unfolded structure of a rectangular cubic bag.

FIG. 2 is a top view of the rectangular cubic bag body.

In the figure: bag body 1, injection port 2, heat sealing line 3, upper film layer 4, lower film layer 5, middle folded film 6, lower valve port 7 and logo 8.

DETAILED DESCRIPTION

The technical solution of the utility model will be further described below in conjunction with the accompanying drawings:

The rectangular cubic bag body of the utility model is an inner liner bag for IBC ton barrels. In order to solve the problem that the hard upper opening of the bag body can only be set at a position deviating from the center due to the limitation of the heat sealing line of the existing similar inner liner bags, the position of the heat sealing line is not conducive to production and molding on a full-automatic assembly line. Since the upper connecting port of most IBC ton barrel inner liner bags adopts a soft interface, it is not conducive to the sealing between the inner wall of the IBC ton barrel and the inner liner bag. The technical solution of the utility model is to use 4 films to form through linear heat sealing and V-shaped heat sealing. The 4 plastic films are respectively an upper film, a lower film and two middle films, wherein the upper film and the lower film are rectangular films, and the middle film is two folded films. After the folded films are spliced, the opening faces outward, and the long sides of the 4 films are linear heat-sealed splicing. They are located on the two long sides of the upper film and the two long sides of the lower film respectively. The short sides of the four films are spliced by V-shaped heat sealing, and the formed X-shaped splicing lines are located on both sides of the bag body. The heat-sealed bag body is a rectangular cube structure after unfolding. The upper valve mouth piece adopts hard material and sealing structure, and is heat-sealed in the center of the upper rectangular film. The lower valve mouth piece also adopts hard material and sealing structure, and is heat-sealed at the corresponding position of the lower film. The formed rectangular bag body matches the shape of the IBC ton barrel liner and can ensure good sealing and fitting between the bag body and the inner wall of the container. Four marks are respectively set at the four corners of the upper film of the rectangular cube bag body, which is helpful to judge whether it is installed in place when installing the IBC ton barrel liner bag; it is helpful to observe the wall adhesion of the bag body during filling and use.

The above are the preferred technical solutions of the utility model, and are not intended to limit the implementation and scope of rights of the utility model. Any technical solutions that are identical or equivalent to the contents described in the claims of the utility model should be included in the protection scope of the utility model.

Claims (7)

1. An IBC ton barrel liner bag, comprising a rectangular cubic bag body, an upper valve mouth piece and a lower valve mouth piece, characterized in that: the rectangular cubic bag body is formed by splicing 4 plastic films by heat sealing, the 4 plastic films are respectively an upper film layer, a lower film layer and two middle films, wherein the upper film layer and the lower film layer are rectangular films, the middle film is two folded films, the folded films are opened outward after being spliced, the long sides of the 4 films are connected by straight line heat sealing, the short sides of the 4 films are connected by V-shaped heat sealing, the heat-sealed bag body is a rectangular cubic structure after unfolding, the upper valve mouth piece of the bag body is heat-sealed at the center of the upper film layer, the lower valve mouth piece is heat-sealed at the corresponding position of the lower film layer, and the formed bag body matches the IBC ton barrel liner. 2. An IBC ton barrel liner bag according to claim 1, characterized in that: the X-shaped splicing lines formed by V-shaped heat sealing of the rectangular cubic bag body are respectively placed on two sides of the bag body. 3. The IBC ton barrel liner bag according to claim 1 is characterized in that the long side splicing lines formed by linear heat sealing of the rectangular cubic bag body are respectively placed on the two upper long sides and the two lower long sides of the rectangular cubic bag body. 4. An IBC ton barrel liner bag according to claim 1, characterized in that the upper valve mouth piece of the rectangular cubic bag body adopts a sealing clamping method, the upper valve mouth piece is clamped with the upper mouth of the IBC ton barrel, and is provided with a single-layer or double-layer sealing structure. 5. The IBC ton barrel liner bag according to claim 1 is characterized in that the lower valve mouth piece of the rectangular cubic bag body also adopts a sealing clamping method, the lower valve mouth piece is clamped with the lower discharge port of the IBC ton barrel, and is provided with a single-layer or double-layer sealing structure. 6. An IBC ton barrel liner bag according to claim 1, characterized in that the upper valve mouth piece and the lower valve mouth piece of the rectangular cubic bag body are made of hard materials, and fully automated production can be achieved during the production process of the liner bag. 7. An IBC ton barrel liner bag according to claim 1, characterized in that: four marks are respectively provided at the four corners of the upper film of the rectangular cubic bag body.