CN220765210U - Reverse internal port sealing structure of valve port bag - Google Patents
Reverse internal port sealing structure of valve port bag Download PDFInfo
- Publication number
- CN220765210U CN220765210U CN202322629852.4U CN202322629852U CN220765210U CN 220765210 U CN220765210 U CN 220765210U CN 202322629852 U CN202322629852 U CN 202322629852U CN 220765210 U CN220765210 U CN 220765210U
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- sealing part
- bag body
- valve port
- valve
- bag
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- 238000007789 sealing Methods 0.000 title claims description 130
- 239000000843 powder Substances 0.000 claims abstract description 36
- 239000010410 layer Substances 0.000 claims description 58
- 239000011229 interlayer Substances 0.000 claims description 38
- 238000003860 storage Methods 0.000 claims description 16
- 238000005452 bending Methods 0.000 claims 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000000123 paper Substances 0.000 description 47
- 239000010408 film Substances 0.000 description 18
- 239000010409 thin film Substances 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005429 filling process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Bag Frames (AREA)
Abstract
The application relates to the technical field of valve pockets, especially, relate to a reverse internal orifice seal structure of valve port bag, it includes bag body top seal portion, the valve port is installed to bag body top seal portion, the valve port is used for filling material, bag body top seal portion inboard is provided with interior mouth piece, interior mouth piece is provided with and hides powder portion, it is used for the shutoff to hide powder portion the valve port. The valve port position can be improved, and the problem of powder leakage is easy.
Description
Technical Field
The application relates to the technical field of valve bags, in particular to a reverse inner port sealing structure of a valve bag.
Background
The valve bag, commonly called as a bottom pasting bag, is an international popular packaging bag, is fed from the top or bottom valve port, adopts special filling equipment, is filled with materials and then is packaged into a square body, and is orderly and attractive in stacking, and belongs to an environment-friendly bag.
The Chinese patent application with the bulletin number of CN212126070U discloses a valve port bag, and comprises a bag body with a bag opening and an upright bottom and a valve port, wherein the valve port is integrally in a flat cylinder shape and is formed by mutually overlapping two ends of a rectangular sheet-shaped connecting sheet, and the connecting sheet is arranged on one side of the bag opening and is in an integrated structure with the bag body.
However, the related art described above has the following problems: the valve bag is filled with powder through the valve port in the filling process, after filling is completed, the valve port bag is usually pressed and sealed by utilizing the pressure of the powder in the valve port bag, however, the valve port is made of an open structure, so that the problem of powder leakage caused by overflow of part of powder from the valve port position in the storage or transportation process is avoided.
Disclosure of Invention
In order to solve the problem that powder is easy to leak at the valve port position, the application provides a reverse inner port sealing structure of a valve port bag.
The application provides a reverse internal orifice seal structure of valve port bag adopts following technical scheme:
the utility model provides a reverse internal orifice seal structure of valve port bag, includes bag body top seal portion, the valve port is installed to bag body top seal portion, the valve port is used for filling, bag body top seal portion inboard is provided with interior mouth piece, interior mouth piece is provided with and hides the powder portion, it is used for the shutoff to hide the powder portion the valve port.
By adopting the technical scheme, in the powder filling process, the powder storage part arranged on the inner port piece of the bag body top sealing part can store part of powder, so that the powder storage part expands to be used for sealing the valve port, and the problem that the position of the valve port is easy to leak powder is solved.
Optionally, the inner mouth piece is an inner mouth paper layer, the inner mouth paper layer is provided with an inner fold line, and the inner mouth paper layer is folded along the inner fold line to form a powder storage part.
By adopting the technical scheme, in the process of manufacturing the valve pocket, the inner port paper layer is folded in half along the inner folding line to form the powder storage part, so that the effect of the powder storage part for storing powder is realized.
Optionally, the length of the inner paper layer along the width direction of the top sealing part of the bag body is greater than the width of the top sealing part of the bag body.
Through adopting above-mentioned technical scheme, the setting of interior mouth ply can cooperate the bag body top seal portion to fold in the valve port bag manufacturing process to improve the setting stability of interior mouth ply, be favorable to forming and hide the powder portion.
Optionally, the top sealing part of the bag body comprises a first sealing part, a second sealing part, a third sealing part and a fourth sealing part, wherein the first sealing part, the second sealing part, the third sealing part and the fourth sealing part are used for sealing the top of the bag body, the first sealing part and the second sealing part are oppositely bent, and the third sealing part and the fourth sealing part are oppositely bent; the valve port is arranged among the first sealing part, the third sealing part and the fourth sealing part.
Through adopting above-mentioned technical scheme, the in-process of manufacturing valve pocket first closing part, second closing part fold earlier, then set up the valve port in first closing part department to fold third closing part and fourth closing part, the tip overlap joint of third closing part is fixed in bonding after the fourth closing part this moment, and third closing part and fourth closing part cooperation carry out overlap joint to the valve port bag and seal, thereby make third closing part and fourth closing part both ends all bond fixedly with first closing part, second closing part, thereby realize the setting of sealing at valve port bag top.
Optionally, the bag body top sealing part comprises a first paper interlayer, a film interlayer, a second paper interlayer and a third paper interlayer, and the first paper interlayer, the film interlayer, the second paper interlayer and the third paper interlayer are sequentially arranged from inside to outside.
Through adopting above-mentioned technical scheme, set up three-layer paper interlayer, can improve the bulk strength of the bag body, make the bag body be difficult for taking place to destroy in use or handling. Meanwhile, the thin film interlayer is arranged, so that water can be isolated from the inner side and the outer side of the bag body, and the inside of the valve port bag is not easy to invade water vapor to damage powder.
Optionally, the third paper interlayer in the third sealing part extends to form an extension section, and the extension section is adhered to the third paper interlayer in the fourth sealing part.
Through adopting above-mentioned technical scheme, through setting up the epitaxial section, can further strengthen the bonding stability between third sealing portion and the fourth sealing portion to improve the sealing stability of bag body top sealing portion.
Optionally, the valve port includes inside lining paper layer and thin film layer, thin film layer presss from both sides to establish inside lining paper layer with set up between the bag body top seal portion, just the thin film layer is greater than inside lining paper layer along the length direction of the setting length of the bag body top seal portion length direction along the bag body top seal portion length direction.
Through adopting above-mentioned technical scheme, when the filling is accomplished, the staff pulls out the filling pipeline, and the filling pipeline rubs the thin film layer this moment to drive the thin film layer and roll, the thin film layer of rolling can cooperate the inside lining ply to seal folding, thereby further increase the sealing performance of valve port, reduce the bulk cargo.
Optionally, the inner lining paper layer is provided with an outer fold line, and the inner lining paper layer is folded in half along the outer fold line to form the protection part.
Through adopting above-mentioned technical scheme, the setting of protection part can increase the thickness that the inside lining ply is located the valve port position to can improve the life of memory ply, and carry out folding protection to the thin film layer.
In summary, the present application includes at least one of the following beneficial technical effects:
1. in the powder filling process, the powder storage part arranged on the inner opening piece of the bag body top sealing part can store part of powder, so that the powder storage part expands to be used for sealing the valve port, and the problem that the position of the valve port is easy to leak powder is solved;
2. in the process of manufacturing the valve pocket, the first sealing part and the second sealing part are folded, then the valve port is arranged at the first sealing part, the third sealing part and the fourth sealing part are folded, at the moment, the end part of the third sealing part is lapped on the fourth sealing part and then is adhered and fixed, and the third sealing part and the fourth sealing part are matched to lap and seal the valve port pocket, so that the two ends of the third sealing part and the fourth sealing part are adhered and fixed with the first sealing part and the second sealing part, and the sealing arrangement of the top part of the valve port pocket is realized;
3. when the filling is finished, the staff pulls out the filling pipeline, and the filling pipeline rubs the film layer at the moment to drive the film layer to roll, the film layer of rolling can seal the folding in cooperation with the lining paper layer, thereby further increasing the sealing performance of valve port, reduces the bulk cargo.
Drawings
Fig. 1 is a state diagram of the bag body top seal in the present application after opening.
Fig. 2 is a state diagram of the top seal of the bag body in the present application.
Fig. 3 is an enlarged view of a portion a in fig. 1.
Fig. 4 is a view for showing a specific layered structure in the third seal portion and the fourth seal portion in the present application.
Fig. 5 is an enlarged view of the portion B in fig. 1.
Reference numerals illustrate:
1. a top sealing part of the bag body; 2. a valve port; 21. lining paper layer; 22. a thin film layer; 23. an outer fold line; 3. an inner port; 31. a powder storing part; 32. an inner fold line; 4. a first sealing part; 5. a second sealing part; 6. a third seal portion; 7. a fourth sealing part; 8. a first paper barrier; 9. a second paper barrier; 10. a third paper barrier; 11. a thin film barrier layer.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses a reverse inner port sealing structure of a valve port bag. Referring to fig. 1 and 2, a reverse inner port sealing structure of a valve port bag comprises a bag body top sealing part 1, wherein a valve port 2 is arranged on the bag body top sealing part 1, the valve port 2 is used for filling, an inner port piece 3 is arranged on the inner side of the bag body top sealing part 1, a powder storage part 31 is arranged on the inner port piece 3, and the powder storage part 31 is used for sealing the valve port 2.
Referring to fig. 1, the bag top seal 1 includes a first seal 4, a second seal 5, a third seal 6, and a fourth seal 7. The first sealing portion 4 is disposed opposite to the second sealing portion 5, and the third sealing portion 6 is disposed opposite to the fourth sealing portion 7. The valve port 2 is glued between the first sealing part 4, the third sealing part 6 and the fourth sealing part 7.
Referring to fig. 1 and 3, the inner mouthpiece 3 is an inner mouthpiece layer, and the inner mouthpiece layer is fixedly arranged inside the second sealing part 5 by glue. The inner paper ply is provided with an inner fold line 32, and the inner paper ply is folded in half along the inner fold line 32 to form a powder storage part 31. Further, the length of the inner port paper layer along the width direction of the bag body top sealing part 1 is longer than the width of the bag body top sealing part 1. Specifically, the inner paper layer extends into the third sealing part 6 and the fourth sealing part 7 along the two ends of the width direction of the top sealing part 1 of the bag body. In the process of folding in, the inner paper layer is located at the two ends of the third sealing part 6 and the fourth sealing part 7 and can be folded back to match with the inner folding line 32, so that the setting stability of the powder storage part 31 is improved when the powder storage part 31 is formed.
In the manufacturing process, the first sealing part 4 and the second sealing part 5 are folded towards opposite directions; then the valve port 2 is stuck to the first sealing part 4, the inner port paper layer is stuck and fixed on the inner side of the second sealing part 5, and the two ends of the valve port 2 are flattened and then respectively stuck on the inner sides of the third sealing part 6 and the fourth sealing part 7; and finally, folding the third sealing part 6 and the fourth sealing part 7 towards opposite directions, wherein the two ends of the third sealing part 6 and the fourth sealing part 7 are adhered and fixed with the corresponding first sealing part 4 and second sealing part 5, and the end part of the third sealing part 6 is adhered and fixed after being lapped on the fourth sealing part 7 so as to seal the top of the bag body. Meanwhile, the two ends of the valve port 2 are lapped and stuck along with the folding of the third sealing part 6 and the fourth sealing part 7, so as to form the required valve port 2.
Further, referring to fig. 2 and 4, the top sealing portion 1 of the bag body includes a first paper interlayer 8, a second paper interlayer 9, a third paper interlayer 10 made of kraft paper, and a film interlayer 11 made of PE film, and the first paper interlayer 8, the film interlayer 11, the second paper interlayer 9, and the third paper interlayer 10 are sequentially arranged from inside to outside, so that the overall strength of the bag body can be improved, and the bag body is not easy to be destroyed in the use or transportation process. Meanwhile, due to the water-proof property of the film interlayer 11, the two sides in and out of the bag body can be isolated, so that the inside of the bag body is not easy to invade water vapor to cause powder damage.
Referring to fig. 4, the first paper barrier 8, the second paper barrier 9 and the third paper barrier 10 in the third sealing portion 6 are arranged in a stepwise incremental dislocation, and the film barrier 11 in the third sealing portion 6 is aligned and overlapped with the second paper barrier 9. Correspondingly, the first paper interlayer 8 and the film interlayer 11 in the fourth sealing part 7 are arranged in a stepwise decreasing staggered manner, and the film interlayer 11, the second paper interlayer 9 and the third paper interlayer 10 in the fourth sealing part 7 are aligned and overlapped.
Further, the extension section extends from the third paper interlayer 10 in the third sealing part 6, and when the third sealing part 6 is folded and overlapped with the fourth sealing part 7, the extension section is adhered to the third paper interlayer 10 in the fourth sealing part 7, so that the adhesion stability between the third sealing part 6 and the fourth sealing part 7 can be further enhanced, and the sealing stability of the top sealing part 1 of the bag body is improved.
Referring to fig. 1 and 5, the valve port 2 includes an inner liner paper layer 21 and a film layer 22, the film layer 22 is sandwiched between the inner liner paper layer 21 and the bag body top seal portion 1, and the length of the film layer 22 along the length direction of the bag body top seal portion 1 is greater than the length of the inner liner paper layer 21 along the length direction of the bag body top seal portion 1.
Further, the inner liner paper layer 21 is provided with an outer fold line 23, and the inner liner paper layer 21 is folded in half along the outer fold line 23 to form a protective portion. The film layer 22 is folded outwards along the non-folded inner liner paper layer 21. The thickness of the lining paper layer 21 at the position of the valve port 2 can be increased by inwards folding the lining paper layer 21 and the film layer 22, so that the service life of the lining paper layer can be prolonged, and the film layer 22 is folded and protected.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. The utility model provides a reverse internal orifice seal structure of valve port bag which characterized in that: the novel plastic bag comprises a bag body top sealing part (1), wherein a valve port (2) is arranged in the bag body top sealing part (1), the valve port (2) is used for filling, an inner opening piece (3) is arranged on the inner side of the bag body top sealing part (1), a powder storage part (31) is arranged on the inner opening piece (3), and the powder storage part (31) is used for sealing the valve port (2).
2. The inverted internal port seal for a valve bag according to claim 1, wherein: the inner opening piece (3) is an inner opening paper layer, the inner opening paper layer is provided with an inner fold line (32), and the inner opening paper layer is folded along the inner fold line (32) to form a powder storage part (31).
3. The inverted internal port seal of a valve bag according to claim 2, wherein: the length of the inner port paper layer along the width direction of the bag body top sealing part (1) is greater than the width of the bag body top sealing part (1).
4. The inverted internal port seal for a valve bag according to claim 1, wherein: the top sealing part (1) of the bag body comprises a first sealing part (4), a second sealing part (5), a third sealing part (6) and a fourth sealing part (7) which are used for sealing the top of the bag body, wherein the first sealing part (4) and the second sealing part (5) are subjected to relative bending treatment, and the third sealing part (6) and the fourth sealing part (7) are subjected to relative bending treatment; the valve port (2) is arranged among the first sealing part (4), the third sealing part (6) and the fourth sealing part (7).
5. The inverted internal port seal of a valve bag according to claim 4, wherein: the bag body top sealing part (1) comprises a first paper interlayer (8), a film interlayer (11), a second paper interlayer (9) and a third paper interlayer (10), wherein the first paper interlayer (8), the film interlayer (11), the second paper interlayer (9) and the third paper interlayer (10) are sequentially arranged from inside to outside.
6. The inverted internal port seal of a valve bag according to claim 5, wherein: the third paper interlayer (10) in the third sealing part (6) is extended with an extension section, and the extension section is adhered to the third paper interlayer (10) in the fourth sealing part (7).
7. The inverted internal port seal for a valve bag according to claim 1, wherein: the valve port (2) comprises an inner lining paper layer (21) and a film layer (22), wherein the film layer (22) is clamped between the inner lining paper layer (21) and the bag body top sealing part (1), and the length of the film layer (22) along the length direction of the bag body top sealing part (1) is greater than the length of the inner lining paper layer (21) along the length direction of the bag body top sealing part (1).
8. The inverted internal port seal of a valve bag according to claim 7, wherein: the lining paper layer (21) is provided with an outer fold line (23), and the lining paper layer (21) is folded in half along the outer fold line (23) to form a protection part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322629852.4U CN220765210U (en) | 2023-09-27 | 2023-09-27 | Reverse internal port sealing structure of valve port bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322629852.4U CN220765210U (en) | 2023-09-27 | 2023-09-27 | Reverse internal port sealing structure of valve port bag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220765210U true CN220765210U (en) | 2024-04-12 |
Family
ID=90614468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322629852.4U Active CN220765210U (en) | 2023-09-27 | 2023-09-27 | Reverse internal port sealing structure of valve port bag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220765210U (en) |
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2023
- 2023-09-27 CN CN202322629852.4U patent/CN220765210U/en active Active
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