CN211520322U

CN211520322U - Double-layer valve bag

Info

Publication number: CN211520322U
Application number: CN201922270993.5U
Authority: CN
Inventors: 姬强
Original assignee: Henan Baijia New Energy Saving Material Co ltd
Current assignee: Henan Baijia New Energy Saving Material Co ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-09-18
Anticipated expiration: 2029-12-17

Abstract

The utility model discloses a double-layer valve bag, including outer container bag, PE inner bag, the PE inner bag suit is in outer container bag, the top of PE inner bag is provided with the filling mouth, the filling mouth extends to one side outside the valve bag, the filling mouth outer wall cover of PE inner bag is equipped with valve port paper, one side of valve port paper inner is bonded with outer container bag, the filling mouth outer wall is provided with easily tearing line, the top of outer container bag bonds and has first interior reinforcement, the bottom of outer container bag bonds and has second interior reinforcement; through setting up outer container bag, PE inner bag, can prevent to store the inside article of valve bag and take place to wet, through set up the bonding wire in the bottom of PE inner bag, the cavity, be used for carminative opening, can discharge the inside air of PE inner bag through the opening, the inside atmospheric pressure of valve bag is greater than external atmospheric pressure, forms the auto-lock passageway of exhausting between two bonding wires, avoids the material to leak along with exhausting, and can prevent that external pollution source from getting into the valve bag.

Description

Double-layer valve bag

Technical Field

The utility model relates to a valve port bag technical field specifically is a double-deck valve port bag.

Background

The valve bag is a popular packaging bag at present, is fed from a top or bottom valve port, is formed into a square body after being filled with materials by adopting special filling equipment, is orderly stacked and attractive, belongs to an environment-friendly bag, and is mainly used for packaging powdery or granular solid materials and flexible articles such as edible powder, chemical fertilizer, synthetic materials, explosive, grain, salt, mineral substances and the like. Present food level customer need be dampproofing when using valve port container bag, ventilative, demand in the functions such as antimicrobe, but the kraft paper is made through wood pulp and forms, has very big microorganism invasion risk, and the inconvenient gas outgoing in with the bag of current big valve bag, and inconvenient people open and get the material to it is inconvenient to bring for people.

Disclosure of Invention

An object of the utility model is to overcome not enough among the prior art, provide a dampproofing, prevent that external pollution source from getting into the inside double-deck valve port bag of valve port bag.

The utility model discloses a realize through following technical scheme: a double-layer valve bag comprises an outer paper bag and a PE inner bag, wherein the PE inner bag is sleeved in the outer paper bag, the top of the PE inner bag is provided with a filling opening, the bottom of the PE inner bag is provided with a welding line, the filling port extends to one side of the outside of the valve port bag, valve port paper is sleeved on the outer wall of the filling port of the PE inner bag, one side of the inner end of the valve port paper is bonded with the outer paper bag, the outer wall of the filling port is provided with an easy-tearing tangent line, the top of the outer paper bag is bonded with a first inner reinforcement, the bottom of the outer paper bag is bonded with a second inner reinforcement, the first inner reinforcement outer wall is adhered with an opening paper, the second inner reinforcement outer wall is adhered with a bottom paper, be provided with the tear line of many vertical settings between outer container bag and the PE inner bag, also be provided with the tear line between facial tissue and the first interior reinforcement on the horizontal direction, the one end of tearing the line extends to the outside of valve bag.

In order to further optimize the utility model discloses, can prefer following technical scheme for use:

preferably, the bonding wires include a first bonding wire and a second bonding wire, the first bonding wire is located above the second bonding wire, a cavity is formed between the first bonding wire and the second bonding wire, a plurality of openings for exhausting air are reserved in the first bonding wire and the second bonding wire, and the openings located above and the openings located below are distributed in a staggered mode.

Preferably, the distance between the first weld line and the second weld line is 4-9 mm.

Preferably, the outer paper bag and the PE inner bag at the filling opening are bonded through glue.

Preferably, the top structure and the bottom structure of the outer paper bag are the same.

Preferably, the length of the first internal reinforcement is the same as the magnitude of the second internal reinforcement.

Preferably, the length of the mouth tissue is greater than that of the bottom tissue, and one end of the mouth tissue is flush with the outer edge of the filling opening.

Preferably, the outer paper bag is a kraft paper bag.

The beneficial effects of the utility model reside in that: through setting up outer container bag, the PE inner bag, can prevent to store the inside article of valve bag and take place to wet, bottom through at the PE inner bag sets up the bonding wire, the cavity, be used for carminative opening, can be through the inside air escape of opening with the PE inner bag, the inside atmospheric pressure of valve bag is greater than external atmospheric pressure, form exhaust auto-lock passageway between two bonding wires, avoid the material to leak along with exhausting, and can prevent that external pollution source from getting into the valve bag, through paste between oral facial tissue and the first interior reinforcement and tear the line, tear the line after tearing the oral tissue in the use tearing the line, can expose the tear the line between outer container bag and the PE inner bag, the very big workman's operation that has made things convenient for.

Drawings

FIG. 1 is a schematic axial side view of the present invention;

FIG. 2 is a schematic structural view of a second inner reinforcement of the present invention;

FIG. 3 is a schematic structural view of the middle bottom surface paper of the present invention;

fig. 4 is a schematic structural view of the PE inner bag of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Wherein: 1. mouth tissues; 2. easily tearing a line; 3. valve paper; 4. an outer paper bag; 5. first inner reinforcement; 6. a PE inner bag; 7. tearing a line; 8. a first bonding wire; 9. a second bonding wire; 10. an opening; 11. a cavity; 12. filling the opening; 13. second inner reinforcement; 14. bottom paper.

Detailed Description

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-5, a double-layer valve bag comprises an outer paper bag 4 and a PE inner bag 6, the PE inner bag 6 is sleeved in the outer paper bag 4, the outer paper bag 4 is a kraft paper bag, welding lines are arranged at the bottom of the PE inner bag 6, the welding lines include a first welding line 8 and a second welding line 9, the first welding line 8 is located above the second welding line 9, the distance between the first welding line 8 and the second welding line 9 is 4-9mm, a cavity 11 is formed between the first welding line 8 and the second welding line 9, a plurality of openings 10 for exhausting air are reserved on the first welding line 8 and the second welding line 9, the openings 10 located above and the openings 10 below are distributed in a staggered manner, air in the PE inner bag 6 can be exhausted through the openings 10 by arranging the cavities 11 and the openings 10 for exhausting air at the bottom of the PE inner bag 6, the air pressure in the valve bag is greater than the external air pressure, and an exhaust self-locking channel is formed between the two welding lines, the material is prevented from leaking along with exhaust, and an external pollution source can be prevented from entering the valve bag, the top of the PE inner bag 6 is provided with a filling port 12, the outer paper bag 4 at the position of the filling port 12 is bonded with the PE inner bag 6 through glue, the filling port 12 extends to one side outside the valve bag, the outer wall of the filling port 12 of the PE inner bag 6 is sleeved with valve port paper 3, one side of the inner end of the valve port paper 3 is bonded with the outer paper bag 4, the outer wall of the filling port 12 is provided with an easy-tearing line 2, the easy-tearing line 2 is arranged, so that people can conveniently open the filling port 12, and can conveniently cut off the connection between the inner bag and the outer bag to quickly separate the inner bag and the outer bag, the top structure and the bottom structure of the outer paper bag 4 are the same, the top of the outer paper bag 4 is bonded with a first inner reinforcement 5, the bottom of the outer paper bag 4 is bonded with a second reinforcement inner reinforcement 13, the length of the first inner reinforcement 5, the outer wall of reinforcement 13 bonds end paper 14 in the second, the length of facial tissue 1 is greater than the length of end paper 14, the one end and the 12 outward flange parallel and level of filling mouth of facial tissue 1, be provided with the tear line 7 of two vertical settings between outer paper bag 4 and the PE inner bag 6, the setting of tearing line 7 can be torn outer paper bag 4 fast, also be provided with tear line 7 on the horizontal direction between facial tissue 1 and the first interior reinforcement 5, the one end of tearing line 7 extends to the outside of valve pocket, through set up tear line 7 between facial tissue 1 and the first interior reinforcement 5, tear line 7 after opening 10 facial tissue 1 is torn in the use tear line 7, can expose tear line 7 between outer paper bag 4 and the PE inner bag 6, make things convenient for the user to operate.

Tear line 7 that sets up between outer container bag 4 and the PE inner bag 6 in this embodiment can all set up on four faces of valve port bag and tear line 7, and the user of being convenient for opens outer container bag 4.

When in use, the airflow in the PE inner bag 6 is slowly discharged through the welding line of the staggered opening 10 additionally arranged at the bottom of the PE inner bag 6, then the PE inner bag 6 is sleeved into the kraft paper outer bag, the valve opening paper 3 with the hot melt adhesive line is sleeved at the filling opening of the PE inner bag 6, one end of the inner side of the valve opening paper 3 is bonded with the outer paper bag 4, the PE inner bag 6 and the outer paper bag 4 are integrally not bonded, the tearing line 7 is arranged between the PE inner bag 6 and the outer paper bag 4, the tearing line 7 is bonded with the inner wall of the outer paper bag 4, the PE inner bag 6 and the outer paper bag 4 are bonded only through the hot melt adhesive line on the valve opening paper 3, then the top and the bottom of the outer paper bag 4 are formed through the bottom of the outer paper bag 4, the first inner reinforcement 5 and the second inner reinforcement 13 are adhered on the top and the bottom of the outer paper bag 4, the mouth paper 1 is adhered on the outer wall of the first inner reinforcement 5, the bottom paper 14 is, after the filling is finished, the outer wall of the filling opening 12 is provided with an easy-tearing line 2, so that the material can be taken out in the later period.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A double-layered valve bag characterized by: the valve bag comprises an outer paper bag and a PE inner bag, wherein the PE inner bag is sleeved in the outer paper bag, a filling opening is formed in the top of the PE inner bag, welding wires are arranged at the bottom of the PE inner bag, the filling opening extends to one side of the outside of the valve bag, valve port paper is sleeved on the outer wall of the filling opening of the PE inner bag, one side of the inner end of the valve port paper is bonded with the outer paper bag, an easy-tearing line is arranged on the outer wall of the filling opening, a first inner reinforcement is bonded to the top of the outer paper bag, a second inner reinforcement is bonded to the bottom of the outer paper bag, a mouth paper is bonded to the outer wall of the first inner reinforcement, a bottom paper is bonded to the outer wall of the second inner reinforcement, a plurality of vertically-arranged tearing lines are arranged between the outer paper bag and the PE inner bag, a tearing line is also arranged between the mouth paper and the first inner reinforcement in.

2. The dual layer valve bag of claim 1, wherein: the welding wire comprises a first welding wire and a second welding wire, the first welding wire is positioned above the second welding wire, a cavity is formed between the first welding wire and the second welding wire, a plurality of openings for exhausting air are reserved in the first welding wire and the second welding wire, and the openings positioned above and the openings positioned below are distributed in a staggered mode.

3. The dual layer valve bag of claim 2, wherein: the distance between the first welding line and the second welding line is 4-9 mm.

4. The dual layer valve bag of claim 1, wherein: and the outer paper bag and the PE inner bag at the filling opening are bonded by glue.

5. The dual layer valve bag of claim 1, wherein: the top structure and the bottom structure of the outer paper bag are the same.

6. The dual layer valve bag of claim 1, wherein: the length of the first inner reinforcement is the same as the size of the second inner reinforcement.

7. The dual layer valve bag of claim 1, wherein: the length of the mouth tissue is greater than that of the bottom tissue, and one end of the mouth tissue is flush with the outer edge of the filling opening.

8. The dual layer valve bag of claim 1, wherein: the outer paper bag is a kraft paper bag.